Monday, September 30, 2019
Obstetric Brachial Plexus Palsy Health And Social Care Essay
The estimated incidence of OBPP in the UK and the Republic of Ireland is 0.42 [ 1 ] , in the US 1.5 [ 23 ] and in other western states 1-3 per 1000 unrecorded births [ 3,5,9,22,24-30 ] . Variations in the estimated incidence may be explained by differences in populations and in the antenatal and intrapartum direction [ 31,32 ] . A population-based survey from western Sweden estimated that between 1999-2001 the incidence of OBPP was 2.9 per 1000 unrecorded births, and of prevailing OBPP was 0.46 per 1000 births ( REF Lagerkvist ) . . In another survey from Sweden Bager [ 13 ] had antecedently found an addition in the incidence of brachial rete paralysis ( BPP ) from 1.3 per 1000 vaginal bringings in 1980 to 2.2 per 1000 vaginal bringings in 1994. Chauhan et Al. [ 3 ] compared two clip periods ( 1980-1991 1991-2002 ) and found that the incidence of OBPP has non changed significantly ( 0.9 per 1000 and 1.0 per 1000 severally ) . Gurewitsch et Al. [ 10 ] estimated an incidence of 5.8 per 1000 between the old ages 1993 and 2004 and noted that this remained changeless during the period of their survey. Many writers have admitted that an addition in the cesarean subdivision rates over the past few decennaries may hold been counteracted by an increased birthweight. Furthermore, despite the debut of systematic preparation in the direction of shoulder dystocia with usage of standard manoeuvres, manikins and simulators no important decrease of the incidence of OBPP has been noted.Hazard FactorsThe hazard factors for OBPP are foetal, maternal, and obstetric, [ 37 ] the most important being foetal macrosomia [ 3,18,20,22,26-28 ] which is a hazard factor for shoulder dystocia [ 27,38-42 ] . Nesbitt et al conducted a big population based survey and reported the undermentioned rates of shoulder dystocia for single-handed births of nondiabetic female parents: 5.2 % for birthweight 4000-4250g, 9.1 % for 4250-4500g, 14.3 % for 4500-4750g, and 21.1 % for 4750-5000g ( Nesbitt et al. 1998 ) . OBPP after rear of barrel bringings can besides happen, normally in low birthweight foetuss [ 43,44 ] . The upper roots are often affected in these instances and the hurts tend to be more terrible [ 45 ] . Diabetess mellitus [ 22 ] , fleshiness [ 46,47 ] or inordinate weight addition [ 47 ] , maternal age ( & gt ; 35years ) [ 48 ] , maternal pelvic anatomy ( platypelloid, level pelvic girdle ) [ 3,22,27,39,40,49 ] and primiparity [ 50 ] are common maternal hazard factors. Diabetess mellitus is a important hazard factor for OBPP, as it frequently causes foetal macrosomia [ 51 ] . Nesbitt et Al found that the hazard of shoulder dystocia for single-handed births to diabetic adult females was 8.4 % , 12.3 % , 19.9 % , and 23.5 % when the birth weight was 4000-4250g, 4250-4500g, 4500-4750g, or & gt ; 4750g, severally. ( Nesbitt et al. 1998 ) . Mild glucose intolerance in adult females without diabetes is besides associated with hazards of OBPP, proposing that there is a continuum of glucose-insulin impact on foetal growing that is correlated to the hazard of OBPP [ 52 ] . Shoulder dystocia is a major hazard factor for OBPP [ 9,22,24,40,54-57 ] . The reported incidence of OBPP in bringings complicated by shoulder dystocia varies widely from 4 % to 40 % [ 14,57,58 ] and the incidence of lasting brachial rete hurt after shoulder dystocia is 1.6 % [ 59 ] . Although foetal macrosomia is the most important hazard factor for shoulder dystocia and is associated with most of the other hazard factors ( maternal diabetes, multiparity, old macrosomic baby, drawn-out gestation, maternal fleshiness or inordinate weight addition ) , about half of the instances of shoulder dystocia occur in babies & lt ; 4000g ( Acker et al. 1985 ) . The hazard of OBPP is increased by labour abnormalcies. OBPP occurs more often in induced labours [ 52 ] . Cephalopelvic or fetopelvic disproportion ( the size or place of the foetal caput or the foetus precludes transition into the maternal pelvic recess ) is a hazard factor for shoulder dystocia and OBPP. A relentless occipito- posterior place [ 65 ] has been associated with an increased incidence of OBPP. Lurie et al [ 60 ] found no difference in rates of distension or continuance of the 2nd phase in instances with shoulder dystocia and concluded that protracted labour was non a hazard factor for it. Gross et al [ 66 ] showed that a drawn-out 2nd phase increased the hazard of OBPP, but concluded that shoulder dystocia can non be predicted from labour abnormalcies. Weizsaecker et al support the association of drawn-out 2nd phase in labour with OBPP independent of macrosomia, diabetes, and other factors [ 52 ] . Several other surveies considered a drawn-out 2nd phase as a hazard fac tor for shoulder dystocia [ 46,62,67-69 ] and for OBPP [ 27,66 ] . In contrast, a high incidence of hasty 2nd phase of labour among babies with OBPP has besides been demonstrated [ 70 ] . However, Poggi et al suggest that although hasty 2nd phase is the most prevailing labour abnormalcy associated with shoulder dystocia, no feature of second-stage of labour predicts lasting brachial rete hurt [ 37 ] . Operative vaginal bringing is another hazard factor for shoulder dystocia and OBPP [ 3,21,22,26,27,68,71,72 ] . In Nesbitt ââ¬Ës survey the hazard of shoulder dystocia for operative vaginal bringings to diabetic female parents was 12.2 % for babies 4000-4250g, 16.7 % for those 4250-4500g, 27.3 % for those 4500-4750g, and 34.8 % for those 4750-5000g ( Nesbitt et al. 1998 ) . Cesarean subdivision decreases the hazard, but OBPP may still happen accounting for merely 1-4 % of all instances [ 22 ] [ 73 ] . When looking at combinations of hazard factors including manner of bringing, maternal diabetes and foetal macrosomia [ 22 ] , the incidence of OBPP appears similar in aided vaginal bringings of nondiabetic adult females and self-generated vaginal bringings in diabetic adult females. The combination of maternal diabetes, foetal macrosomia ( & gt ; 4500g ) and assisted vaginal bringing has the highest OBPP rate ( 7.8 % ) . Gilbert et Als have besides shown stronger associations between shoulder dystocia and brachial rete hurt with increasing birth weights. Twenty two per cent of neonates weighing 2.5-3.5kg with OBPP besides had shoulder dystocia, which increases to 74 % in newborns weighing more than 4.5kg. Overall, 53 % of brachial plexus hurt instances were associated with shoulder dystocia. The frequence of diagnosing of other malpresentation was increased ( OR 73.6, 95 % CI 66, 83 ) in this survey. This determination, harmonizing to the writers, suggests that ââ¬Å" brachial rete hurt has other causes in add-on to shoulder dystocia and might ensue from an abnormalcy during the antepartum or intrapartum period â⬠[ 22 ] . A old gestation complicated with OBPP is another hazard factor [ 74 ] . Al-Qattan and al-Kharfy [ 74 ] reported a high return rate in adult females with history of old childbearing with lasting OBPP and advocated elected cesarean bringing in these instances particularly if there is besides foetal macrosomia. However it is non known whether these consequences would use to instances of old impermanent OBPP. Gordon et al [ 6 ] besides found that 14 % of their 59 topics with OBPP were born to female parents who had given birth to babes with OBPP in old gestations.PathogenesisOBPP has been considered as a effect of inordinate grip and sidelong extension exerted on the foetal cervix during bringing, which consequences in stretching, rupturing or avulsing the cervical nervus roots from the spinal cord [ 75 ] . However, OBPP may happen in the absence of any grip or any identifiable hazard factors. During labour, the brachial rete is exposed to two potentially harmful forces: the endogenous ( intrauterine ) forces and exogenic ( grip ) forces applied by the clinician. Mathematical theoretical accounts, manikins and computing machine simulations have been used to quantify the forces applied on the brachial rete and the threshold for doing hurt. Although these surveies attempted to objectively quantify the grade of both endogenous and exogenic forces, their consequences should be interpreted with cautiousness due to their experimental nature. Exogenous ( grip ) forces If the foetal shoulders remain in a relentless anteroposterior place at the pelvic recess, as observed in instances of foetal macrosomia with an increased bisacromial diameter ( e.g. , with maternal diabetes mellitus ) [ 76,77 ] or precipitate 2nd phase of labour [ 54,70 ] the anterior shoulder may go wedged behind the symphysis pubic bone and farther descent of the foetal caput consequences in stretching of the anterior brachial rete. In shoulder dystocia the applied force and the clip to present the foetal shoulders is frequently significantly increased. Forceful downward grip of the caput when the shoulder is impacted under the symphysis pubic bone can potentially ensue in farther impaction and cause overstretching and hurt of the brachial rete. Downward grip of the foetal caput appears strongly associated with OBPP ( OR: 15.2, 95 % C.I. : 8.4-27.7 ) and the hazard is significantly increased with the grip force applied. Rotation of the shoulders into oblique pelvic diameter is bes ides associated with hazard of OBPP ( OR: 5.5, C.I. :1.6-18.9 ) [ 30 ] . Gonik et al [ 88 ] , showed that downward sidelong flexure of the foetal caput was associated with a 30 % addition in brachial rete stretch ( 18.2 % ) compared with axial placement of the caput ( 14 % ) . Furthermore, the foetal caput is in an unnaturally distorted place in relation to the shoulders, as the shoulders remain in the AP diameter at the recess while the caput has rotated in the AP diameter at the mercantile establishment { Sandmire, 2009 # 6162 } . The badness of the hurt may depend on the grade of grip, writhing and extension of the foetal caput { Sandmire, 2008 # 6057 } . The usage of force feeling devices has shown that the applied extremum grip forces are about 47 N for everyday bringings, 69 N for hard bringings, and 100 N for bringings complicated by shoulder dystocia, proposing that, as the badness of dystocia additions, stronger grip is normally observed [ 86 ] . Even in bringings non complicated by shoulder dystocia the forces applied during downward grip can be frequently underestimated as significant forces were found to hold been used in many OBPP instances [ 30 ] . Direct compaction of the symphysis pubic bone against the brachial rete may besides be a conducive factor to injury [ 13 ] . OBPP may happen regardless of the figure and type of manoeuvres used in instances of shoulder dystocia [ 12,14,69 ] , but the trouble to accomplish bringing of the shoulders and the demand for extra manoeuvres is correlated to the hazard of OBPP. Experimental surveies utilizing pelvic and foetal theoretical accounts, tactile feeling baseball mitts and computerised informations acquisition systems have besides shown that as the trouble of the bringing increases with increasing grip forces, there is a concentration of force on the brachial rete from exogenously applied sidelong flexure [ 87 ] . In these experiments it was demonstrated that the wider the foetal shoulder girth, the greater the force demands and the higher the incidence of hurt. In contrast, the McRoberts manoeuvre appeared to cut down the grade of brachial rete stretching. Slightly more than 10 % of the shoulder dystocia instances that resolve with the McRoberts ââ¬Ë manoeuvre entirely have brachial plexus hurt [ 78 ] . After an unsuccessful McRoberts ââ¬Ë manoeuvre, brachial plexus hurt rates range from 15.7 % if bringing is achieved by the Woods ââ¬Ë manoeuvre to 31.8 % if bringing of the posterior arm is undertaken [ 14 ] . Intrauterine causes As several instances of OBPP occur in the absence of grip or any known hazard factors, hurts to the brachial rete may be caused by the normal forces of labour and bringing. In one of the first surveies proposing that OBPPs are non needfully caused by clinician-applied grip, it was estimated that 26 out of the 51 OBPP instances were non associated with a bringing complicated by shoulder dystocia. { Gordon, 1973 # 615 } . Since so, several other surveies have shown that about half of all OBPPs are non associated with shoulder dystocia [ 5,12,13,18,19 ] and many instances have non been preceded by a hard bringing or grip on the anterior shoulder [ 20,79,80 ] . Harmonizing to different series, up to 20 % of lasting OBPPs are non associated with shoulder dystocia { Chauhan, 2005 # 48 } { Sandmire, 2009 # 6162 } . Jennett et al [ 18 ] concluded that brachial plexus hurt might be the consequence of intrauterine maladaptation and should non be needfully considered as leading facie grounds of birth procedure hurt. In the absence of shoulder dystocia, OBPP occurs by a different mechanism [ 81 ] . The bulk of OBPPs in the absence of shoulder dystocia ( 67.7 % ) appear to impact the posterior arm [ 59,84 ] . OBPPs of the posterior arm ( 39 % of all OBPPs { Gherman, 1998 # 114 } ) or after cesarean bringing suggest an intrauterine cause [ 3,4,18,19,27,38,82,83 ] . Brachial plexus stretching may be caused by an wedged posterior shoulder on the sacral headland while the propulsive forces of labour cause farther descent of the foetus { Sandmire, 2002 # 79 } . OBPPs may besides be secondary to compaction of the brachial rete on the sacral headland. Sandmire and DeMott { Sandmire, 2009 # 6162 } back up the impression that after the caput is delivered, the posterior shoulder can non be obstructed as the distance from the headland to the vaginal mercantile establishment ( 12-13 centimeter ) is excessively long to allow obstructor of the posterior shoulder and the foetal cervix can non be stretched that f ar { Sandmire, 2002 # 79 } , It is hence of paramount importance to document the place of the caput and shoulders in a instance of shoulder dystocia, as this type of hurt caused by impaction of the posterior shoulder on the sacral headland is unrelated to any action of the clinician and should non be considered negligent. Mathematical theoretical accounts have been used to gauge the exogenic and endogenous forces on the brachial rete during shoulder dystocia [ 89 ] . The endogenous forces were estimated to be 4 to 9 times higher than the clinician-applied forces ( 91.1 to 202.5 kPa vs 22.9 kPa ) proposing that self-generated endogenous forces may lend well to OBPP. However the writers of this survey acknowledged that their theoretical account did non account for a figure of confusing factors including soft tissue opposition, the dissipation of force throughout the womb or the compound consequence of grip and compaction forces. Further unfavorable judgment on this theoretical account focused on the gross premises made for the impaction site, the parametric quantities specifying the endogenous force distribution and the broad scope of contact force per unit areas between the foetal cervix and the symphysis pubic bone, which includes values that in existent life would transcend the fatal bounds [ 90 ] . Harmonizing to a little series, all of the 6 OBPPs following atraumatic cesarean subdivision had relentless hurt after a twelvemonth [ 85 ] . Brachial rete hurts have occured even when cesarean bringing was performed in early labour [ 82,85 ] . Uterine anomalousnesss, such as a lower uterine section fibroid or an intrauterine septum, may ensue in unnatural intrauterine force per unit areas and hurt to the brachial rete [ 85 ] . OBPP and phrenic nervus paralysis associated with a bicornuate womb have besides been reported [ 80 ] . Allen et Al, utilizing delivering simulators found that greatest stretch occurred in the posterior brachial rete during descent in non-shoulder dystocia bringings, whereas anterior brachial rete stretch, rotary motion, and extension were similar among non-shoulder dystocia, one-sided and bilateral shoulder dystocia bringings. The writers concluded that shoulder dystocia per Se does non present extra hazard of brachial rete stretch over everyday bringings [ 91 ] . However, they admitted that they did non command for loss of musculus tone secondary to hypoxia, the simulations were undertaken merely in occiput anterior place and the continuance of the 2nd phase in their experiment was less than 2 proceedingss. Although these experiments have improved our cognition on the mechanisms of hurt, clinical verification of their consequences is virtually impossible due to the emergent nature of shoulder dystocia and methodological and ethical issues around clinical research on the foetus during labour.Prediction and PreventionOur ability to foretell OBPP is rather limited as the bulk of the affected babies have no identifiable hazard factors [ 67 ] . In a series of 63 OBPPS most of the patients were nondiabetic ( 89 % ) , nonobese ( 76 % ) , had normal labour ( 91 % ) , and did non hold an assisted bringing ( 79 % ) . No hazard factors were identified in about 30 % of OBPP instances in another survey by Peleg et al [ 27 ] . Multiple logistic arrested development analysis utilizing prenatal, intrapartum, and neonatal factors predicted merely 19 % of the brachial rete hurts in the series of Perlow et Al [ 54 ] . Donnelly et Als have besides concluded that OBPP is non predictable by hazard factor hit ing or analysis of the partogram [ 63 ] . Shoulder dystocia, a major hazard factor for OBPP is mostly unpredictable. Statistical theoretical accounts have been developed to gauge this hazard utilizing combinations of birth weight, maternal tallness and weight, gestational age and para [ 92,93 ] . The presence of multiple hazard factors appears to be a forecaster for shoulder dystocia [ 94 ] . Designation of hazard factors and an prenatal direction with tight control of glucose degrees in pregnant adult females with diabetes may cut down the incidence of foetal macrosomia and shoulder dystocia. A program for bringing in high hazard instances should include a multidisciplinary squad attack with a senior accoucheuse or an experient obstetrician available at the 2nd phase. Initiation of labour Initiation of labour has been antecedently recommended in instances of suspected macrosomia, in order to cut down the hazard of shoulder dystocia and birth hurt, nevertheless, a Cochrane reappraisal showed that initiation of labour for nondiabetic adult females with suspected foetal macrosomia does non look to cut down the hazards of maternal or neonatal morbidity [ 95 ] . Cesarean Section The hazard of brachial plexus hurt is lower in cesarean bringings [ 3,96 ] . If identifiable hazard factors are present, an elected cesarean delivery bringing might forestall OBPP. Yeo et al suggested that bringings by elected cesarean subdivision for birthweights in surplus of 4kg would forestall 44 % of shoulder dystocias and halve the perinatal mortality among births with shoulder dystocia with a 2 % subsequent addition of the cesarean subdivision rate [ 97 ] . On the other manus, Gilbert et Al found that 92 % of the high hazard patients ( diabetic adult females delivered by operative vaginal bringing with babies of & gt ; 4.5kg birthweight ) did non hold OBPP and cesarean bringing would hold been unneeded [ 22 ] . Although macrosomia is normally associated with OBPP, Rouse et Al [ 32 ] found no benefit to elected cesarean bringing in adult females with estimated foetal weights of & gt ; 4.5 kilogram, unless they were besides diabetic. These writers estimated that when elected ces arean bringing was performed for estimated foetal weights of aâ⬠°?4.5kg, 3695 cesarean delivery bringings would be required for the bar of one permanent OBPP, whereas a policy of elected cesarean delivery bringings for birthweights of aâ⬠°?4kg was associated with 2345 several cesarean bringings. For diabetic adult females, more favorable ratios for cesarian bringings were estimated: 443 bringings with the 4.5kg policy, and 489 bringings with the 4kg policy. Ecker et al [ 38 ] besides suggested that at most birth weights, the figure of cesarean bringings necessary to forestall a individual hurt is high. In this survey, it was estimated that in nondiabetic adult females, between 19 and 162 cesarean subdivisions would hold been necessary to forestall a individual brachial rete hurt and among diabetic adult females between 5 and 48 extra cesarean delivery subdivisions would hold been required. The writers could hence non recommend the everyday usage of cesarean bringing in insta nces of macrosomia. The Royal College of Obstetricians and Gynaecologists recommends that elected cesarean subdivision can be considered in diabetic adult females when the estimated foetal weight is & gt ; 4.5kg and in nondiabetic adult females when the estimated foetal weight is & gt ; 5kg [ 98 ] . Nonetheless, some writers advocate a policy of offering elected cesarean bringing to adult females with kids with lasting OBPP [ 22 ] . Maneuvers at bringing For the bar of shoulder dystocia, contraceptive manoeuvres at bringing ( McRobert ââ¬Ës manoeuvre and suprapubic force per unit area ) have been evaluated, but there is deficiency of clear grounds to back up their modus operandi usage [ 99 ] . Management of shoulder dystocia The purpose of direction should be bar of foetal asphyxia, while avoiding foetal and maternal hurt. The go toing accoucheuse or obstetrician should be able to acknowledge a shoulder dystocia instantly and continue through a bit-by-bit sequence of manoeuvres to hasten bringing. Knowledge of the constructs that underlie manoeuvres and the practical inside informations of their executing appears much more effectual than cognition of the precise definitions or eponyms of each manoeuvre ( Crofts et al. 2008 ) . First line manoeuvres Mc Roberts manoeuvre involves acute flexure of the hips while the adult female is on supine place. This place straightens the lumbosacral angle, leting descent of the posterior shoulder. The maternal pelvic girdle is perpendicular to the way of the maternal expulsive forces. Gonik et al [ 88 ] , utilizing computing machine silent person theoretical accounts showed that with lithotomy placement, both endogenous and exogenic bringing forces were associated with brachial rete stretching during shoulder dystocia ( the per centum of brachial rete nervus stretch was 15.7 % vs 14.0 % , severally ) . McRoberts positioning resulted in 53 % less brachial rete stretch ( 6.6 % ) . Directed suprapubic force per unit area can be uninterrupted or ââ¬Ërocking ââ¬Ë force per unit area on the posterior facet of the anterior shoulder which may ease adduction of the shoulders, a decrease of the bisacromial diameter and rotary motion to an oblique place. Second line manoeuvres Delivery of the posterior arm is undertaken by infixing the manus in the vagina posteriorly and using soft force per unit area at the antecubital pit to flex the foetal forearm, which is so grasped and swept across the foetal thorax. If bringing of the posterior arm is achieved, the anterior arm rotates posteriorly or descends behind the symphysis pubic bone as Kung et Al showed that the shoulder dimensions are reduced by 2.5cms with this manoeuvre particularly in larger foetuss ( Kung et al. 2006 ) . Rubin ââ¬Ës manoeuvre: rotary motion of the shoulders is attempted by insertiong two fingers in the vagina behind the anterior shoulder. The shoulder is pushed frontward and the bisacromial diameter rotates into an oblique place. If unsuccessful, this can so be combined with the Woods ââ¬Ë prison guard manoeuvre. Forests ââ¬Ë prison guard: force per unit area is applied with two fingers on the anterior facet of the posterior shoulder and use force per unit area taking to revolve the foetus towards the same way as the Rubin manoeuvre. Reverse Woods ââ¬Ë prison guard: with two fingers behind the posterior shoulder rotary motion is attempted in the opposite way to the original Woods ââ¬Ë prison guard. All these manoeuvres aim to revolve the shoulders and enable bringing by conveying the anterior shoulder posteriorly. Interpolation of the whole manus in the vagina may enable better push on the shoulder and facilitate rotary motion ( Crofts et al. 2008 ) . All-fours: the adult female is on her custodies and articulatio genuss and soft grip is applied taking to present the buttocks shoulder which may fall due to gravitation and to a possible addition of the anteroposterior diameter of the maternal pelvic girdle. Clavicular break: although the bisacromial diameter is reduced with this manoeuvre, there is an increased hazard of iatrogenic brachial rete hurt, vascular and soft tissue foetal injury. Third line manoeuvres Zavanelli manoeuvre involves flexure of the foetal caput, reversal of damages, rotary motion of the caput back to the occipito-anterior place, and replacing into the womb. Tocolytics and general anesthetic agents are used for uterine relaxation. The foetus is so delivered by cesarean subdivision. Although this manoeuvre has success rates of up to 92 % , it is associated with terrible fetal and maternal morbidity including foetal hurts and deceases, uterine and vaginal rupture. Symphysiotomy requires surgical expertness and is associated with important hazards of lower urinary tract hurt. The patient is on a supine place and the thighs are abducted no more than 45IS from the midplane. A urethral catheter is inserted and the urethra is displaced laterally. Following local infiltration with lignocaine, a perpendicular pang scratch is made on the symphysis with a scalpel. The symphysis is normally partly separated by cutting through the fibers by rotational motion of the blade. This allows the anterior foetal shoulder to be disimpacted. In instances of shoulder dystocia, the hazards of OBPP may be reduced if manoeuvres are conducted suitably and forceful downward grip of the caput is avoided ( figure 1 ) . Gonik et al [ 88 ] , showed that downward sidelong flexure of the foetal caput was associated with a 30 % addition in brachial rete stretch ( 18.2 % ) compared with axial placement of the caput ( 14 % ) . Fundal force per unit area should be avoided as it can decline shoulder dystocia and grip combined with fundal force per unit area can be associated with neurological complications [ 57 ] . Consequences may be better and hazards of OBPP lower if there is no terror, force per unit area on the fundus, sidelong grip or pivoting of the caput at the cervix and when tortuosity or rotational motion of the caput to revolve the shoulders is avoided { Doumouchtsis, 2009 # 6174 } .DecisionOBPP is a potentially annihilating complication of childbearing. Shoulder dystocia is merely one of a battalion of hazard factors for OBPP, most of which may be hard to foretell. Future research should be directed in prospective rating of the mechanisms of hurt, in order to enable accoucheurs, accoucheuses and other wellness attention professionals identify modifiable hazard factors, develop preventative schemes and better perinatal results.
Sunday, September 29, 2019
Therapeutic Recreation
Therapeutic Recreation is the purposeful utilization or enhancement of leisure as a way to maximize a personââ¬â¢s overall health, well being, or quality of life. Therapeutic Recreation programs for mental illness may have seasonal classes in many areas that may include exercise, swim, adapted karate and crafts. Therapeutic recreation programs are specifically designed for individuals with disabilities. Groups are usually small and the participant to staff ratio is appropriate to the needs of the group.The activities are planned to meet the interest of the participants and can be individualized. In different communities there are different things for people with mental illness to do. In some community they even have jobs people can do to get them back in the community and working. Lamar Missouri has lots of programs that put people that have mental illness in jobs. I have even talked to the manager for Mc Donald and he has put to work people with mental illness and he said to me t hey are the best dam workers I think I have.Even in Pittsburg Kansas they have programs to put clients into the work place and let them make some money. Some people see working in society are jobs but the clients see it as a way to get out of the house and they enjoy it to an extent I would say it is recreation. Some general recreation programs may be adapted to include a person with a disability using auxiliary aids and services, but the structure of the activity, group size and staff remains the same.Making it a little harder on the staff and the staff are not able to provide one to one assistance or specialized support to an extent. Some places there are programs and activities that can suit all ages, interests, and skill levels. Activities include swimming classes, craft classes, trips, camps, childrenââ¬â¢s programs, special events, and varied offerings every season. One program I was reading about was dancing. It is for ages 15 and up with mental illness. You dance to a wor ld of rhythm and engage in playful rhythmic movement for fitness and coordination.Includes line dances, circle dances, folk dances. Designed especially for teens, and adults with developmental disabilities, that one was for a person with higher function. There are programs a person with lower functioning can dance to as well. You can take that program and modify a little and make it for any one or any age very easily. The program I was reading made people pay for the programs but with some more modifications and some sponsors it could be all free. Some places they have ides facilitate the individuals with mental illness into programs at their neighborhood recreation centers, assuring that cities and parks and recreation programs are accessible and usable by all citizens. Inclusion aides conduct assessments, develop goals for participation, and provide necessary support, including increased supervision levels, adapting games and activities and training of recreation center staff, to ensure that the needs of the person with disabilities are being met.Volunteers are a very important part of the therapeutic recreation services program. In many areas there are a variety of volunteer opportunities are available for those ages thirteen and up including students needing service hours. I donââ¬â¢t know if the program is in this area yet but there is a program Specialized Recreational Program Parenting with love and logic. This program is for parents, and teachers it is a user friendly and often highly successful program that is heavily wrapped in empathy but soles not shield children from consequences of their actions.It empowers children to solve their problems and help parents change their behaviors to relieve stress and pressure. Of course nothing works all the time, but this anecdotal program and the expertise of your presenter will, in a safe and nonthreatening environment, invite you to change the only person you can change, yourself. I think that program woul d be great for parent that donââ¬â¢t really know how to deal with their children or even the ones that think they do even if it donââ¬â¢t work it still gave them a little more knowledge. It will give them another outlook on how to teach their child. Therapeutic Recreation Therapeutic recreation is a treatment service designed to restore, remediate and rehabilitate a personââ¬â¢s level of functioning and independence in life. According to WHO- The world health organisation, health promotion is the process of enabling people to increase control over, and to improve their health. Health promotion represents a comprehensive social and political process, it not only embraces actions directed at strengthening the skills and capabilities of individuals but also the action directed towards changing the social, environmental and economic conditions. The Ottawa Charter identifies three basic strategies for health promotion. These advocacyââ¬â¢s for health to create the essential conditions for health indicated above enabling all people to achieve their full potential, and mediating between the different interests in society in the pursuit of health. In order to promote healthy lifestyles in a population or an individual a number of models have been created. For this study both the Leisure Ability Model and the Health Protection/Health Promotion Model are being looked at and compared. The first of these models being looked at is the Health Protection/Health Promotion Model. This model, created by Austin 1991, sees the purpose of therapeutic recreation as facilitating the client to recover following a threat to health such as drug addiction, alcohol addiction, psychiatric disorder etc, also known as health protection, and to achieve optimal health through health promotion. Hence for this reason this models chief aim is ââ¬Å"to use activity, recreation or leisure to help people to deal with problems that serve as barriers to health and assist them to strive for their highest levels of wellnessâ⬠, (Austin, 1997). There are four major concepts that underlie the Health Protection/ Health Promotion Model (HPHPM). These are the Humanistic Perspective, High-level Wellness, The Stabilisation and Actualisation Tendencies and Health. Humanistic Perspective- Those who embrace the humanistic perspective believe that each of us has the responsibility for his/her own health and the capacity for making self-directed wise choices about our own individual health status. Because an individual is responsible for their own health it is important to encourage individuals to become involved in decision making and to gather maximum knowledge to improve their health. Austin encourages that the population are ââ¬Å"active participants in the world, rather than passive puppets controlled by the environmentâ⬠. The humanistic perspective focuses on the positive image of what it means to be human. Human nature is viewed as basically good, and humanistic theorists focus on methods that allow fulfilment of an individualââ¬â¢s potential. High-Level Wellness- The term high level wellness was first coined by Dr. Halbert Dunn in his book in 1961, he defined it as ââ¬Å"â⬠¦an integrated method of functioning which is oriented toward maximizing the potential of which the individual is capableâ⬠. Dunnââ¬â¢s concept of high level wellness is, like the humanistic perspective is a holistic approach that goes beyond the absence of physical illness to include both psychological and environmental wellness. For this reason Austin surmises that high level wellness goes beyond traditional medicine and toward helping people to achieve as high a level of wellness as they are capable of achieving. Austin further goes on to compare the similarities between high level wellness and therapeutic recreation as both have been heavily influenced by the humanistic perspective. Stabilisation and Actualisation Tendencies- These are two motivational forces which the Health Protection/ Health Promotion Model are based on. Stabilising tendencies helps to maintain a steady state of an individual. It looks at keeping the stress levels of an individualââ¬â¢s life at a maintainable level and not to let the stressors in a personââ¬â¢s life to spiral out of control leading to health risk behaviour (HRB), hence for this reason stabilisation tendencies is the driving force behind Health Protection. The actualisation tendency drives a person towards health promotion which focuses on achieving an individualââ¬â¢s high level of wellness. Health- health is the final underlying concept of The Health Protection/Health Promotion Model. The ultimate goal of this concept is to help a client to strive toward health promotion. Penderââ¬â¢s (1996) definition of health incorporates stabilisation and actualisation tendencies, therefore interlinking health with the previous underlying concept of the model. For this reason healthy people can cope with lifeââ¬â¢s stressors and encourages clients to optimise their own health rather than improving their health just to recover form illness. Austin (1997) believes that those who enjoy health have the opportunity to pursue the highest levels of personal growth and development. Having looked at the underlying concepts of the model there are three broad areas of a continuum to be understood in order to design a therapeutic recreation program for any client. These are: i. Prescriptive activities: When clients initially encounter illnesses or disorders, often they become self-absorbed. The therapeutic recreation personnel, at this stage of the continuum must provide direction and structure to the client as means of an intervention due to a feeling of helplessness that can ultimately produce severe depression. ii. Recreation: Through recreation, clients begin to regain their equilibrium disrupted by stressors so that they may once again resume their quest for actualization. They take part in intrinsically motivated recreation experiences that produce a sense of mastery and accomplishment within a supportive and nonthreatening atmosphere. Mutual participation on behalf of the client and the TRP occurs and the client begins to have fun and find new ways to interact with others. iii. Leisure: This is a means to self-actualization because it allows people to have self-determined opportunities to expand themselves by successfully using their abilities to meet challenges. This stage is based on The Leisure Ability Model whereby they look at leisure alone as a means of therapeutic recreation. At this stage of the continuum, clients assume primary responsibility for their own health. So from looking this model ultimately it can be said that health and actualization are intimately intertwined. The attainment of high level wellness permits actualization. Those who enjoy peak health are free of barriers to actualization so that they may actively pursue personal growth and development. When clients are initially taking part in a program based on this model they have a learned helplessness and take a lack of responsibility but as they move down the continuum they assume primary responsibility for themselves. The Leisure Ability Model. The second model being discussed is The Leisure Ability Model. The Leisure Ability Model (LAM) which was draw up by Peterson and Gunne in 1984 focuses on leisure as a prevention of illness rather than the use of medication. This model can be used hand in hand with The HPHPM or can be used alone when designing a therapeutic recreation program to demote a health risk behaviour. Peterson and Gunne, when designing this model thought that recreation and leisure are necessary experiences that all people should enjoy and take part in, including those with ââ¬Å"limitationsâ⬠or disabilities both physical and mental. The purpose of the model is therefore to ââ¬Å"facilitate the development, maintenance and expression of an appropriate leisure lifestyleâ⬠for individuals or groups with physical, emotional, mental or social limitations. The LAM offers an alternative to more traditional medical models for those with special needs. The Leisure Ability Model was constructed with the belief that the end product of therapeutic recreation services for clients was improved independent and satisfying leisure functioning, also referred to as a ââ¬Å"leisure lifestyleâ⬠(Peterson, 1981, 1989; Peterson & Gunn, 1984). Similar to the HPHPM, the Leisure ability model also has a number of underlying concepts, these include Learned Helplessness, Intrinsic motivation, internal locus of control, and causal attribution, Choice and finally Flow. Learned Helplessness- Many individuals with disabilities and/ or illnesses experience learned helplessness. This could be learned during childhood when others did things ââ¬Å"forâ⬠the individual, or through repeated exposure to settings where one learned to become a passive patient upon whom procedures were performed according to a routine. Learned helplessness robs the individual of a sense of mastery and self-determination but is also beyond that individualââ¬â¢s control. After having experienced life so far as helplessness in one leisure activity, a person may firmly believe that he or she is abnormal, inadequate, and lacks basic skills in that activity. As a consequence, the person believes that they are handicapped to participate in this activity and this belief may then generalize to personal performance in other areas of leisure behaviour. Iso-Ahola (1980) reports that there are three consequences of learned helplessness, these are: i. A lack of internal motivation to escape the conditions which lead to the state of helplessness. ii. A lack of cognitive understanding of personal effectiveness, iii. A heightened state of emotionality. Intrinsic motivation, internal locus of control and causal attribution- The three concepts of intrinsic motivation, locus of control and personal attribution are intricately linked, and help to explain the basis for the provision of therapeutic recreation services. All individuals are intrinsically motivated towards behaviour in which they can experience competence and self-determination. This process is continual and through skill acquisition and mastery, produces feelings of satisfaction, competence, and control. An internal locus of control implies that the individual takes responsible for the behaviour and consequences which may occur from the behaviour. The opposite of this is external locus of behaviour i. e. leaving others take the blame for your own mistakes. Personal attribution implies that the individual accepts that they can affect the outcome of a situation, they can make a decision that matters somehow to something. Without a sense of personal causation, the likelihood of the individual developing learned helplessness (the feeling that external others are in control) increases greatly. Choice- The Leisure Ability Model also relies heavily on the concept of choice. Choice implies that the individual has the knowledge, skills and attitudes which facilitate choice and the desire to choose. This suggests freedom, freedom from constraints and freedom to exercise an option to an individual that initially felt restricted. The Leisure Ability Model emphasizes content areas that help clients build skills in a variety of areas which, in turn, should allow them options for future independent leisure functioning. Flow- A fourth, closely related concept is that of ââ¬Å"flowâ⬠(Csikszentmihalyi 1990). Flow suggests a state of balance between skill level and activity challenge which leads to a level of concentration and energy expenditure which is absorbing or consummating in form. When skill level is high and activity challenge is low, the individual is quite likely to be bored. When the skill level is low and the activity challenge is high, the individual is most likely to be anxious leading to an uneven flow. A therapeutic recreation personnel must attempt to balance both to keep flow. These areas of understanding are important for the therapeutic recreation personnel to be able to design a series of coherent, organized programs that meet client needs and move the client further toward an independent and satisfactory leisure lifestyle. The Leisure Ability Model contains three major categories of service: treatment or rehabilitation which is directed towards therapy and/or rehabilitation, leisure education revolves around the development of activity skills and social interaction skills as well as issues for leisure counselling, and special recreation which involves the provision of recreation programs for members of special groups such as autism or down syndrome. Each of these three service areas is based on distinct client needs and has specific purposes, expected behaviour of clients, roles of the specialist, and targeted client outcomes. As with The Health Protection/Health Promotion Model these service areas operate along a continuum. The client's role in special recreation programs includes greater decision making and increased self-regulated behaviour. As with the HPHPM the client has increased freedom of choice and his or her motivation is largely intrinsic without the dictatorship of a TRP. In conclusion, from having looked at and critically compared and evaluated both The Health Protection/Health Promotion Models and The Leisure Ability, The Health Protection/Health Promotion Model appears to be an extension of The Leisure Ability Model. The Leisure Ability Models ultimate goal is leisure compared to The Health Protection/Health Promotion Model uses leisure as the final means towards its ultimate goal of optimal health. When designing a therapeutic recreation program, the therapeutic recreation personnel may go back and forth between the models in order for the program to be client specific.
Saturday, September 28, 2019
Banks and Credit System of Exchange Essay Example for Free
Banks and Credit System of Exchange Essay Definition of Banksââ¬âBanks are financial institutions that help people to save and borrow money.In a growing economy, the banks help to create a new pool of money to be ised for other economic activities.They complement the money or cash system of exchange with the system of credit. History of Banking in the Philippines During the pre-colonial period, Filipinos also saved and borrowed money, but usually this was done by families, relatives of tribal leaders.The oldest written relic of our precolonial past is the famous Laguna Copperplate inscriptin (LCI), which contains a record of a debt payment in 900A. D.It proves that we have a longt tradition of honoring our debts in our culture. Modern banking, as we know it, really began with the coming of the Europeans. The first credit organizations were the Obras Pias(pious work), created by the Spanish colonial government starting in the 16th century. It is interesting to know that the early Catholics in the Philippines were taught how to tithe(give 10 percent of income to the church).Thus, thye early church in the Philippines was able to collect a fund od money, and its growth and good works increased tremendously. The first general bank in Southeast Asia was the Banco Espaà ±ol-Filipino (now known as Bank of the Philippine Islands), which opened in 1851.It was given authority to issue bank notes.Soon, other banks were opened.The Catholic Church anf their trustees owned and operated most banks during the Spanish colonial period. During the American period, more banks began operations. In 1906, the government established postal savings banks all over the country to bring banking closer to the people.This Promoted the habit of thrift and savings among low-income groups. Now Americans, Chinese and Filipinos also entered the picture. In 1916 the philippine National Bank was organized. Other banks which followed were the China Banking Corporation and the Philippine Bank of Commerce.Before World War II there were 17 banks in the country. The PNB and Postal banks were owned by the Catholic Church and religious organizations, and two by Filipinos and others. The Japanese m,ilitary occupation in 1941-45 briefly restructed Philippine banking. Only Japanese and their Filipino sympathizers were allowed to operate banks. In 1946, after independence, the otigins of our modern banking system were established. Prewar banks were re-opened and resumed operations. The Central Banking Act was passed in 1948. Today, there are thousands of banks all over the country, and some Filipino banks have opened branches abroad. Tyhe Volume of banking services has also increased, as more and more services are being offered. Among these services are car loans, time deposits, automatic tellers, dreive-in windows, night depository, safe deposit boxes, payroll handling, automatic debits, and many more. KINDS OF BANKS There are different kinds of banks as follows: 1. Rural banks-These are located mostly in the countryside. The government encourages the establishment of these small banks in order to bring asavings and banking closer to people in the provinces. For example, a group may set up a rural bank with P20 million capital outside of metro Manila or cities; but p50 million is needed for a bank in the city. The main reason for rural banks is to help farmers with agricultural loans. In 1994, the Pagsanjan Rural Bank founded by Victor Zaide cabreza and Soledad Benitez Cabreza, won the award fo ââ¬Å"Outstanding Rural Bank in he Philippinesâ⬠2. Savings and loan associationââ¬âThese small banks gather savings and invest them in long term securities, such as housing loans. A good example is the Monte de Piedad Bank. 3.Special government banksââ¬âThe Philippine government established several bnks to handle specific duties involving its financial projects.For example, after the war, the Rehabilitation and Finance Corporation (RFC) was created to receive postwar reconstuction funds ang give financial aid to the war-damaged economy. The RFG eventually beame the Development bank of the Philippines (DBP). The Land Bank of the Philippines (LBP) helps the government implement the land reform program. The Philippine Amanah Bank was organized in 1970s to cater for the growing economic needs of Muslim Filpinos. The government may also operate postal banks within selected post iffides around the country. Many small savers and children like to use postal banks because it is closer and more familiar to them. 4.Commercial banksââ¬âThese make up the biggest banking group, and comprises nearly 50% of the total banking resources in the country. The main function of this type is to supply the circulating capital for the economy in the form of short-term loans.Example are the Philippine National Bank, Metrobank, BPI, FarEast Bank and Trust Company and others. 6.Universal Bank- Also known as a ful-service bank, a universal bank provides more servies than a commercial bank. Banks which have reached a capitalixation of P50 million or more can apply for a universal banking liscence. A universal bank can make more investments and lending.It can act as an investment house, a savings bank etc. It can invest directlyin private companies. Several banks are iniversal banks, starting with the Philipine National Bank, republic Planters Bank, United Cocunot Planters Bank, Allied Bank, PCIB, BPI, Far East Bank and Trust Company, and Metrobank. 6. international banksââ¬âAs the name says international banks have operations in more than one country. Some Filipino bamks have branches in other countries, e.e. PNB, FEBTC, etc. Similarly, some foreign banks have branches in the Philippines, e.g. Hongkong ang Shanghai Chartered Bank, Citibank, Australia New Zealand, etc. Apart from the private banks, thee are government-owned banks, such as the International Bank for Reconstrucyion and Development (IBRD or World Bank) ased in Washington, D.C.; the Asian Development Bank (ABD) based in Metro Manila; the Bank of International Settkements (BIS) based in Basle, Switzerland. The Uses or Function of Banksââ¬â The services of banks are: 1.To accept aand guard deposits of money.People go to a bank because they trust that their money will not be stolen inside.ThePhilippine Deposit Insurace Corporation (PDIC) encures each depositorââ¬â¢s money up to a limit. In case the bank closes doen or is robbed, the depositor will still get their money bacl up to a fixed limit. In turn, the bank keeps a written list of the deposit in a savings book, a monthly statement or a certificate . For the right to use the money, the banks pay interest. 2. to lend money. Banks led money to qualified clients. in this way, the bank earns interest and profits. loans are ofdifferent kinds: are short-term. Loans may also be typedaccording to purpose( car loan, housing loan, business loan etc.) This may be a property title, which the bank can get in case the loan is not paid. Next, bigl loans must have a co- signer or one who will guarantee to pay the loan if the borrower defaults 9faiks to pay). 3.To remit and collect money. Banks als transfer or collect money for clients. for example, overseas contract workers can send their remittances to family through a bank to be picked up in Manila by the relative. A businesman can pay for a supply ordered from abroad through a local bank which send the payment to the foreign supplier. Usually, a bank has a correspondent bank abroad in case it does not have branches ther. Banks accept checks, bank dreafts or telegraphic transfers from other banks, according to certain conditions. 4..To perform legal roles like supervising a business, managing a private Banks and Credit System of Exchange. (2016, Dec 31).
Friday, September 27, 2019
Environment Essay Example | Topics and Well Written Essays - 500 words - 4
Environment - Essay Example In terms of the environment, thorium is a better product in contrast to uranium. In the reaction process, most of the thorium is combusted in a way that most of the thorium is spent. This means that a lower amount of waste is produced. Eventually, there are less harmful wastes in the surroundings. This argument favors thorium reactors because its resistance to meltdowns is greater. This means that it is safer, although there is always the possibility of some poisonousness. It is poisonous in the short-term, but nearly harmless in the long-term in comparison to uranium. Although both of them are nuclear reactors, they use dissimilar fission reactions. In essence, this means that there are different products and properties that arise from the reactions. While uranium cannot be easily used with thorium, thorium can be mixed with other uranium extracts. This means that its use does not mean that uranium would be out-of-date. They can be used together to form bigger and more potent compounds. However, scientific research indicates that the assembly of thorium is not as stress-free as that of uranium. Scientifically, thorium is not fissile. While uranium can split to form a nuclear chain reaction, thorium cannot split. Even so, it can be made fissile through the bombardment of diverse chemical reactions. Apart from that, the damage caused in the Fukushima disaster evidences how volatile uranium can be. On the contrary, thorium does not exhibit such reactions, and it cannot be used in making weaponries. In case of a catastrophe, a thorium reaction can be stopped because it is not fissile. In terms of density, thorium is about 200 times heavier than uranium and other lead products. Thorium is perhaps better than uranium as a nuclear reactor. In the main, it is a better substitute when equated to uranium. However, there still exists some challenges in the use of thorium, mainly because of personal welfares. Over the years, the use of uranium has formed a
Thursday, September 26, 2019
Classifying talent Essay Example | Topics and Well Written Essays - 750 words
Classifying talent - Essay Example The first talent chosen for the analysis is playing the piano. It is really a talent for it involves performance of musical pieces with special ability of mind and hands and virtuosity. In other words, playing the piano as a talent requires physical, mental and psychological skills. The uniqueness of this talent lies in the ability to master the musical instrument and being able to perform the hardest musical pieces in front of the audience, under psychological pressure. It is complexity of musical pieces, hours, days and even months of hard work on the performance and virtuosity which make this talent admirable and great. Overall, a person who has this talent obtains such characteristic features as diligence, patience to work a lot of time and not to give up, love of the beautiful, and perseverance. One more relatively wide-spread talent is dancing. This talent lies in a personââ¬â¢s ability to use his / her physical abilities to perform eye-pleasing movements to music and both render and trigger emotions. Thus, this talent also requires mental, psychological and, more importantly, physical skills. The uniqueness of this talent is in a personââ¬â¢s perseverance and hard work to get particular physical skills to be able to perform very specific and complex movements. Very often, it is physical form and gracefulness that are usually praised in this talent. Just like any other talented person, one that has this talent is hard-working, diligent, patient, and passionate. Today, there are many actors but not so many of them have a real talent of acting, which lies in the ability to get into characters and perform in front of an audience or camera. This talent requires mostly mental and psychological skills which allow some kind of transformation and influence on the viewersââ¬â¢ minds. The uniqueness of the talent lies in the personââ¬â¢s ability to warm to the role so much so that other people
Ford and the World Automobile Industry in 2009 Essay
Ford and the World Automobile Industry in 2009 - Essay Example Overview of the Company Ford Motor Company founded in 1903 by Henry Ford, an automotive and industrial pioneer remains today as one of the oldest firms within the industry. The automotive firm in Dearborn, Michigan and has so far grown into other nations. Ford established itself as a major player in the automotive industry in 1908 commanding close to 50% of the market share after sales of 15 million vehicles of Model T (Grant, 2010, p. 46). In 1950, Ford became a public company making it to grow significantly. Fordââ¬â¢s main products include cars, trucks, and SUVs with different types of brands such as Jaguar, Volvo, Ford, Mercury, Lincoln, Aston-Martin, and Land Rover amongst others. Ford also has finance division, parts and service department, and they own Hertz Corporation, being the largest car rental firm in the world. In 2003, Ford was second after a pre-tax profit of about $ 1.3 billion despite a $ 1.1 billion loss in North America. Nevertheless, the company experienced si gnificant losses between 2000 and 2008 attributed to rising costs of commodities, ongoing and rising healthcare expenses, lagging behind of sales of vehicles, and bailing out of major parts supplier from bankruptcy such as Visteon. Ford recorded huge losses in the fiscal years 2000 to 2008 as shown in fig. 1. The following is a Porterââ¬â¢s Five Forces analysis explaining this trend. Figure 1: Table showing return on Equity of various Automotive Firms Courtesy of Grant (2010) Porterââ¬â¢s Five Forces Analysis Various models used in industry and firm analysis to develop the right managerial strategy. Strategic management is a complex due to dynamism and turbulence in business environment. Nonetheless, through Porterââ¬â¢s five forces model, organizations are able to identify areas requiring overhauling for effective and efficient performance (Blake, Cucuzza, Rishi, 2003, p. 11). Like many other firms, Fordââ¬â¢s strategic management can be enhanced through a deeper insigh t into five forces that has been reducing their competitive advantage from 2006 to date hence recording such huge losses. Porter described competitive advantage as significantly influenced by five forces; bargaining power of buyers, bargaining power of suppliers, intensity of competition rivalry, threats of new entrants, and threats of substitutes. These same forces led to Fordââ¬â¢s current economical situation (Windecker, 2004). In each of the below forces, a conclusion regarding rating in a scale of 1 to 5, 1 being very weak and 5 very strong is provided. The full scale is as follows; Bargaining Power of Buyers There is high intensity of competition coupled with increasing demand for automotive products in major markets. Hence, consumers have a variety of firms to choose from unlike during the classical time when there were limited manufacturers. United States of America and European Union consumers have a high bargaining power necessitated by availability of information regar ding various products (Grant, 2010, p. 49). The buyers in automotive industry are powerful due to unavailability of grand proliferation of companies that manufacture automotives. In addition, the largest automotive manufacturers within US have approximately 90% value shipped hence additional value to the product. Another important feature of automotive industry in US is the fair standardization of parts used in assembling of products (Waraniak,
Wednesday, September 25, 2019
National Security vs. Individual Rights Essay Example | Topics and Well Written Essays - 250 words
National Security vs. Individual Rights - Essay Example On the contest of seeking to unearth the delicate equilibrium between citizensââ¬â¢ rights and the concern on national security, Kettl expounds on the terrorist attacks which were opportunistic of the Americaââ¬â¢s open society as they stage-managed their mass murder incursion on the World Trade Centre and the Pentagon. Deep scrutiny on the predicament unravelled that the roots of this incident encompassed the effortless and accessible means and avenues to obtain passports to foreigners. It was also unravelled that key American immigration sites were often jeopardized by lack of resolute scrutiny. On this concern, President Bush reiterated to the attack urging American Citizens to deliver terrorists to the state authorities altogether with their respective ring leaders or opting to succumb into the terrorists snare. The U.S went further to imprison the captured terrorists at Guantanamo Bay, hence evading the Geneva Convention restriction (Kettl, 2013, pg 162).
Tuesday, September 24, 2019
Programming Language Ada 95 Research Paper Example | Topics and Well Written Essays - 2000 words
Programming Language Ada 95 - Research Paper Example However, more than 450 programming languages were utilized to manage numerous working projects of Department of Defense but none of them was standardized. The main reason could be the absence of reusability. For these reasons, the Navy, Army and Air Force planned to build a high-level programming language especially for embedded systems (The Language Guide, 1997; Kempe, 1995). Thus, the Ada emerged as a programming language designed to facilitate the development of extremely reliable and long-standing embedded software systems. This language comprises capabilities to describe packages of associated objects, types and relevant operations. Additionally, the language packages can be classified and the types can be extended in order to facilitate the development of language libraries of adaptable and reusable software parts. In addition, these processes can be applied in forms of sub-programs with usual sequential programming control structures, or as accesses that comprise synchronizati on of simultaneous operational threads of control as a fraction of their invocation. Moreover, the programming language is capable of dealing with modularity in the physical way as well with a potential to up-hold split compilation (Kempe, 1995). This report will discuss different aspects of Ada95 programming language. ... In this programming language, different kinds of issue and error are indicated through exceptions and managed explicitly. Additionally, the programming language as well includes the features for system programming; which allows accurate control over the illustration of data and access to system reliant-properties. Most importantly, this programming language offers a comprehensive and predefined programming setting of standard packages comprising amenities for, among others, string handling, input-output, random number generation and numeric elementary functions (Kempe, 1995). HISTORY In 1970s, the United States DoD (Department of Defense) was worried due to a number of different programming languages being utilized for developing and managing its embedded systems and other computer system projects as well as most of them were outdated or hardware reliant and none of them allowed for safe modular programming. Thus, in year 1975, The Department of Defense formed a technology working gr oup known as High Order Language Working Group (HOLWG), with the intention of minimizing this figure by discoing or finding or developing a single technology based programming language which could be used to manage all the embedded systems. As a result Ada emerged (Kempe Software Capital Enterprises, 2011; Feldman, 1999; eNotes.com, Inc., 2011). In addition, Ada programming language greatly took attention of the programming community all through its early days. Its backers as well as others forecasted that it would become a leading language for wide-ranging principle programming as well as not immediately defense-related tasks. In this scenario, Ichbiah widely stated that within 10 years, just two programming languages would stay Ada and Lisp. In
Monday, September 23, 2019
Truth-Telling and Confidentiality (TT&C) Precis Assignment Essay
Truth-Telling and Confidentiality (TT&C) Precis Assignment - Essay Example Secondly, he points out that we maintain our privacy so as to keep some aspect of our behavior or life a secret because if other people knows about these secrets it might be embarrassing for them. The third reason to maintain our privacy as he points out, mostly relates to an individualââ¬â¢s medical records. It is important to keep an individualââ¬â¢s medical record private in order to protect that individual from dealing with the consequences of making such record public. The last reason that Rachels points out, for maintaining our privacy is to protect individuals from giving too much information to corporate or institution that are just looking for a specific detail about the individualââ¬â¢s life (Rachels 156). However, Rachels argues that the reasons he has pointed out here does not give the complete understanding of why privacy is important for two reasons: First, they all bases on the unusual situation in which an individual has something to hide and might harm him if let out. Second, in another perspective, the invasions of privacy that result in harm or an embarrassment is objectionable because our sense of privacy cannot just be justified in terms our fear of embarrassment or harm (Rachels 157). He gives his account on the importance of privacy basing on social relationship and an individualââ¬â¢s appropriate behavior. He states that privacy is only important if we are to maintain our social relationship with different kinds of people that we would like to socialize with, since our relationship to other people mostly depends upon how we act towards them (Rachels 157). He further states that people vary the way they behave towards each other according to the social responsibility t hey have towards them. Similarly, Rachel further reiterates the importance of privacy basing on the individuals privacy and his or her personal relationship. According to this account, he argues that the ability of an individual to control who
Sunday, September 22, 2019
The Model Devil Essay Example for Free
The Model Devil Essay Humanity views Satan in different forms, having various ideas of his being. Each race and religion has different faces of what Satan is. However, the world universally associates him with one concept: evil. Lucifer ââ¬â his alternative name ââ¬â has been depicted in religious teachings, in films, in literature, and in music throughout the years. All of these depictions give him life, thus giving humanity a solid picture of what is evil. The face of evil has been portrayed in two of the most prominent works of literature. Christopher Marloweââ¬â¢s Doctor Faustus has Mephistophilis as the main character for the devil. It was followed by John Miltonââ¬â¢s Paradise Lost which gave a detailed account of Satanââ¬â¢s background. These two literary works shared notable descriptions of the devil and became the basis of most people on how hell and Lucifer was viewed. Doctor Faustus referred to the German academician, Faust, who sold his soul to Lucifer in exchange for power and knowledge. One of Luciferââ¬â¢s trusted follower, Mephistophilis was summoned by the doctorââ¬â¢s practice of necromancy. Faust spent the remaining twenty four years of his life doing deeds that will acquire him power through Mephistophilisââ¬â¢ assistance. The doctor questioned about the world by having debates with the servant of Lucifer. The devil also acted as a guardian to the doctor to make sure that he will follow the oath. The devil was portrayed in Marloweââ¬â¢s work as the messenger of Lucifer. He generously shared with Faustus the truths of hell and willingly participated with Faustââ¬â¢s debates. From their first meeting Mephistophilis transformed into a Franciscan friar because Faust was unable to bear the devilââ¬â¢s original appearance. I charge thee to return, and change thy shape; Thou art too ugly to attend on me: Go, and return an old Franciscan friar; That holy shape becomes a devil best. (Marlowe) It was more convenient interacting with the devil after Faustus asked Mephistophilis to change its hideous form. Mephistophilis can be symbolized as an Angel of Death during his companionship with Faustââ¬â¢s last twenty four years. The devil aided Faustus in fulfilling every worldly desire. On the other hand, he watched the doctor closely to make sure that every move will only be faithful to the oath with Lucifer. The devil was with him until the very last day he lived on earth. In the course of the story, some scenes may have given an impression that Mephistophilis was portrayed in a friendly manner with some of the conversation with Faust. O, Faustus, leave these frivolous demands, Which strike a terror to my fainting soul! (Marlowe) Mephistophilis have been helping Faust because of the duty that was bestowed on him. On the other hand, the words that the devil uttered had an impression of allegiance with the doctor. The very moment that Dr. Faustus repented by the end of the story, that was the time that Mephistophilis had taken his life. The devil may have become a servant of Faust however; its loyalty still remained with Lucifer. Mephistophilis was able to claim Faustââ¬â¢s soul and the devil made sure the pact will be accomplished. This literary work of Marlowe became a model for the depiction of evil specifically in poetry. John Milton came out with an epic entitled Paradise Lost that has a brief similarity with Marloweââ¬â¢s character. Miltonââ¬â¢s work offered what the Catholic bible has forgotten to explain. He related a detailed account of Satanââ¬â¢s origin and how the formation of evil and hell came about. The dearest angel of God had begun to take pride into him and desired to be as powerful as the Almighty. Satan gathered all the other angels who shared the same view or who were persuaded by him, until a battle erupted in heaven. Defeated by God, all of the rebels were thrown out of heaven and fell into a burning lake. From this event, Satan took the role as the leader and started formulating strategies to defeat God. More than can be in Heaven, we now return To claim our just inheritance of old, â⬠¦Whether of open war or covert guile, We now debate. Who can advise may speak. (Milton Book II) à The beginnings of Satanââ¬â¢s kingdom inflicted an inner conflict for the fallen angel. The defeat made him realized more of Godââ¬â¢s superior power. The debates of whether to wage war or not, posed his hesitations of seeing his chances of winning but shortly, his pride and narcissism earned his confidence. To battle Heaven directly, he knew that the chances were slim but he was able to find a possible target to fight God. In Book II of Miltonââ¬â¢s Paradise Lost, Satan was informed of the new world being built by God. â⬠¦There is a place (If ancient and prophetic fame in Heaven Err not)ââ¬âanother World, the happy seat Of some new race, called Man, about this time To be created like to us, though less In power and excellence, but favoured more Of him who rules above; (book II) He found the new world as a vulnerable environment. Satan saw the vision inside him that if this world will be destroyed, he can persuade man to join his forces to fight God. à This particular work of Milton showed an evolution of an important character in humanity. Satan was given an established identity by relating his origin. The rest of Paradise Lost narrated the fallen angelââ¬â¢s quest for the downfall of man. When he succeeded with his plans with Adam Eve, he was able to create his own kingdom called Pandemonium. This place, in the eyes of the readers, became the physical location of hell. The depiction of these two characters has made a striking impact on how people of today view evil. Mephistophilis and Satan shared attributes that made them identifiable with the concept of evil. Somehow, these fictional devils became real in the eyes of the people. Marlowe and Milton were able to create a solid image of the devil that prompted society to view evil according to what the authors made. From the two literary works, the concept of hell was the first aspect that was discussed. Mephistophilis and Satan both narrated that hell cannot be found in a physical territory. Hell was viewed as a state of mind. A torture that cannot be determine unless it is felt. Within the bowels of these elements, Where we are torturââ¬â¢d and remain for ever: Hell hath no limits, nor is circumscribââ¬â¢d In one self-place; but where we are is hell, And where hell is, there must we ever be: â⬠¦Ay, think so still, till experience change thy mind. (Marlowe) The Hell within him; for within him Hell He brings, and round about him, nor from Hell One step, no more than from himself, can fly By change of place: Now conscience wakes despair. (Milton Book IV) The above citations from both books pertain to the same views of the two devils regarding the concept of hell. It can be said that this particular notion of hell suggested that to see hell is to be emotionally tormented. The devils both interacted closely with humans with the intent of manââ¬â¢s destruction. à It was seen from both literature that man was seen as a weapon to battle God. Man as Godââ¬â¢s creation was made vulnerable to temptations. This was used by the devil to lure man to commit sin and to disobey God. Both of the devilsââ¬â¢ pursuit to lure man into disobedience was accompanied in the form of disguise. The transformation of Mephistophilis into a friar can symbolize Faustusââ¬â¢ desire to mock religion. Faustus was portrayed as a highly ambitious man who excelled in all academic areas and disregard religious laws. As Mephistophilis changed, this helped Faustus to interact with the devil without feeling intimidated and even gaining a sort of camaraderie in some of their outtakes. MEPHIST. â⬠¦Here, take this book, peruse it well: The iterating of these lines brings gold; â⬠¦Pronounce this thrice devoutly to thyself, And men in harness shall appear to thee, Ready to execute what thou commandst. FAUSTUS. Thanks, Mephistophilis, for this sweet book: This will I keep as chary as my life. (Marlowe) On the other hand, Satan changed into a serpent to blend with the nature of Adam and Eveââ¬â¢s habitat. It was easier for him to tempt Eve in the form of a creature that was made by God as well. God created the world and placed Adam and Eve in paradise, where animals were created to aid the couple in taking care of the land. The serpent being part of that creation, posed no threat to Eve. From Miltonââ¬â¢s Book IX, it was easy for Satan to tempt Eve in the form of a serpent to serve as evidence that the beast did not die after eating the fruit. Thus, it made his lie more convincing. Whose rigid threats of Death; ye shall not Die: How should ye? by the Fruit? it gives you Life To Knowledge, By the Threatner, look on mee, Mee who have touchd and tasted, yet both live, â⬠¦Shall that be shut to Man, which to the Beast Is open? or will God incense his ire For such a petty Trespass, and not praise Rather your dauntless virtue. (Book IX) In the course of events from both literary works, Mephistophilis and Satan shortly expressed a desire to re-experience the joy of heaven. Why, this is hell, nor am I out of it: Thinkst thou that I, that saw the face of God, And tasted the eternal joys of heaven, Am not tormented with ten thousand hells, à In being deprivd of everlasting bliss? (Marlowe) Mephistophilis described to Faust that heaven is an eternal joy. The devil was completely aware that by being damned together with Lucifer, it entailed a never ending unhappiness of the spirit. Me miserable! which way shall I fly Infinite wrath, and infinite despair? Which way I fly is Hell; myself am Hell; And, in the lowest deep, a lower deep à Still threatening to devour me opens wide, To which the Hell I suffer seems a Heaven. O, then, at last relent: Is there no place Left for repentance, none for pardon left? None left but by submission; (Milton Book IV) On the other hand, Satan shortly reflected of his previous stature from heaven. It can be considered that the particular text above gave a shadow of regret from Satanââ¬â¢s rebellious action. This desire of wanting to go back to heaven was depicted in the two literatures very briefly. In the end, both devils were overpowered by their decision to do evil deeds and battle God. Mephistophilis and Satan were associated in the same concept of evil. However, both of them were shaped and portrayed differently in the development of each story. They differed in creating impact and affecting changes in the flow of events. Christopher Marloweââ¬â¢s Doctor Faustus already had an existing concept of evil where his characters and plot revolved around it. But it was Paradise Lost by John Milton who related the origin of evil. Taking that into account, it can be seen why Satan was portrayed as a political leader and Mephistophilis as Luciferââ¬â¢s messenger. Milton made Satan navigate the direction of events in Paradise Lost. Being the central character, Satanââ¬â¢s actions created huge effects on other characters. On the contrary, though Mephistophilis was only described as a follower, he was the cause of the downfall of the central character when he ended Faustusââ¬â¢ life. The story of the origin of evil provided Satanââ¬â¢s character with depth. It entailed that evil has a reason why it exists, that somehow it can be justified. Unlike Mephistophilis who interacted with Faustus out of sheer pleasure for doing evil, Satan had progression with his character. The approach with evil was more personal and Paradise Lost showed the inner workings of Satanââ¬â¢s mind which was beyond unimaginable in Marloweââ¬â¢s poetry. Satan can be seen either as a protagonist or a villain. He was bounded with a purpose, his character behaved as such because of that purpose. Mephistophilisââ¬â¢ dialogue was similar to the evil angel urging Faust not to repent. He was consistently persuasive and encouraging to Faust in fulfilling every worldly desire and denouncing God. Satan, on the other hand, exuded more of an emotional tone in his words. His despair and anger reflected the vengeance that he wanted to achieve against God because of his downfall. Here we may reign secure; and, in my choice, To reign is worth ambition, though in Hell: Better to reign in Hell than serve in Heaven. (Book I) Centuries have passed after Marlowe and Milton created these notable literary classics. The modern society still perceives evil as similar from the characters that were drawn in the poetries. Mephistophilis and Satan became prominent figures especially in the aspects of religious issues. These two created recognized features of the devil which were once incoherently described by religious entities. The devil may have been derived from fictional creations but it became part of human reality.
Friday, September 20, 2019
Replica Synchronization in Distributed File System
Replica Synchronization in Distributed File System J.VINI Racheal ABSTRACT The Map Reduce framework provides a scalable model for large scale data intensive computing and fault tolerance. In this paper, we propose an algorithm to improve the I/O performance of the distributed file systems. The technique is used to reduce the communication bandwidth and increase the performance in the distributed file system. These challenges are addressed in the proposed algorithm by using adaptive replica synchronization. The adaptive replica synchronization among storage server consists of chunk list which holds the information about the relevant chunk. The proposed algorithm contributing to I/O data rate to write intensive workload. This experiments show the results to prove that the proposed algorithm show the good I/O performance with less synchronization applications. Index terms ââ¬â Big data, distributed file system, Map Reduce, Adaptive replica synchronization INTRODUCTION The distributed environment which is used to improve the performance and system scalability in the file system known as distributed file system [1]. It consists of many I/O devices chunks of data file across the nodes. The client sends the request to the metadata server who manages all the whole system which gets the permission to access the file. The client will access the storage server which is corresponding to it, which handles the data management, to perform the real operation from the MDS The distributed file system of MDS which manages all the information about the chunk replicas and replica synchronization is triggered when any one of the replica has been updated [2]. When the data are updated in the file system the newly written data are stored in the disk which becomes the bottleneck. To solve this problem we are using the adaptive replica synchronization in the MDS MapReduce is which is the programming primitive , programmer can map the input set and obtaining the output and those output set send to the reducer to get the map output. In the MapReduce function it is written as the single node and it is synchronized by MapReduce framework [3]. In distributing programming models which perform the work of data splitting, synchronization and fault tolerance. MapReduce framework is the programming model which is associated with implementation for processing large data sets with distributed and parallel algorithm on a cluster of nodes. Hadoop MapReduce is a framework for developing applications which can process large amounts of data up to even multiple terabytes of data-sets in parallel on large clusters which includes thousands of commodity nodes in a highly fault tolerant and reliable manner. The input and the output of the MapReduce job are stored in Hadoop Distributed File System (HDFS). RELATED WORKS GPFS [4] which allocates the space for the multiple copies of data on the different storage server which supports the chunk replication and it writes the updates to all the location. GPFS keeps track of the file which been updated to the chunk replica to the primary storage server. Ceph[5] has replica synchronization similar ,the newly written data should be send to all the replicas which are stored in different storage server which is before responding to the client. Hadoop File System [6] the large data are spitted into different chunk and it is replicated and stored on storage servers, the copes of the any stripe are stored in the storage server and maintained by the MDS, so the replica synchronization are handled by the MDS, the process will be done when new data written on the replicas. In GFS [7], there are various chunk servers were the MDS manages the location and data layout. For the purpose of the reliability in the file system the chunk are replicated on multiple chunk ser vers; replica synchronization can be done in MDS. The Lustre file system [8], which is known for parallel file system, which has replication mechanism For better performance Mosa Store [9] which is a dynamic replication for the data reliability. By the application when one new data block is created, the block at one of the SSs is stored in the MosaStore client, and the MDS replicate the new block to the other SSs to avoid the bottleneck when the new data block is created. Replica synchronization is done in the MDS of MosaStore. The Gfarm file system [10] the replication mechanism is used for data replication for the reliability and availability. In the distributed and parallel file system, the MDS controls the data replication and send the data to the storage servers; this makes pressure to the MDS. Data replication which has the benefits to support for better data access was the data is required and provide data consistency. In the parallel file system [11], this improves the I/O throughput, data duration and availability by data replication. The proposed mechanism, according to the cost of analysis the data pattern are analysed a data replication is done, but replication synchronization is done in the MDS. In the PARTE file system, the metadata file parts can be replicated to the storage servers to improve the availability of metadata for high service [12]. In detail we can say that in the PARTE file system, the metadata file parts can be distributed and replicated to the corresponding metadata into chunks on the storage servers, the file system in the client which keeps the some request of the metadata which have been sent to the server. If the active MDS crashed for any reason, then these client backup request are used to do the work bu the standby MDS to restore the metadata which are lost during the crash. iii.PROPOSED SYSTEM OVERVIEW The adaptive replica synchronization mechanism is used to improve the I/O throughput, communication bandwidth and performance in the distributed file system. The MDS manages the information in the distributed file system which is split the large data into chunks replicas. The main aim of using the mechanism adaptive replica synchronization because the storage server cannot withstand the large amount of the concurrent read request to the specific replica, adaptive replica is triggered to the up to chunk data to the other related SSs in the hadoop distributed file system [13][5].The adaptive replica synchronization will be preformed to satisfy heavy concurrent reads when the access frequency to the target replica is greater than the predefined threshold. The adaptive replica synchronization mechanism among SSs intends to enhance the I/O subsystems performance. Fig 1: Architecture of replica synchronization mechanism A. Big data Preparation and Distributed data Storage Configure the storage server in distributed storage environment. Hadoop distributed file system consists of big data, Meta Data Servers (MDS), number of replica, Storage Server (SS). Configure the file system based on the above mentioned things with proper communication. Prepare the social network big data. It consists of respected user id, name, status, updates of the user. After the data set preparation, it should be stored in a distributed storage server. B. Data update in distributed storage The user communicates with distributed storage server to access the big data. After that, user accesses the big data using storage server (SS). Based on user query, update the big data in distributed storage database. By updating the data we can store that in the storage server. C. Chunk list replication to storage servers The chunk list consists of all the information about the replicas which belongs to the same chunk file and stored in the SSs. The primary storage server which has the chunk replica that is newly updated to conduct the adaptive replica synchronization , when there is a large amount of the read request which concurrently passes in a short while with minimum overhead to satisfy this that mechanism is used. D. Adaptive replica synchronization The replica synchronization will not perform synchronization when one of the replicas is modified at the same time. The proposed mechanism Adaptive replica synchronization which improve the I/O subsystem performance by reducing the write latency and the effectiveness of replica synchronization is improved because in the near future the target chunk might be written again, we can say that the other replicas are necessary to update until the adaptive replica synchronization has been triggered by primary storage server. In the distributed file system the adaptive replica synchronization is used to increase the performance and reduce the communication bandwidth during the large amount of concurrent read request. The main work of the adaptive synchronization is as follows: The first step is chunk is saved in the storage servers is initiated .In second step the write request is send one of the replicas after that the version and count are updated. Those SS update corresponding flag in the chunk list and reply an ACK to the SS. On the next step read/write request send to other overdue replicas .On other hand it should handle all the requests to the target chunk and the every count is incremented according to the read operation and frequency is computed. In addition, the remaining replica synchronization for updated chunks, which are not the hot spot objects after data modification, will be conducted while the SSs are not as busy as in working hours. As a result, a better I/O bandwidth can be obtained wi th minimum synchronization overhead. The proposed algorithm is shown in algorithm. ALGORITHM: Adaptive replica synchronization Precondition and Initialization: 1) MDS handles replica management without synchronization, such as creating a new replica; 2) Initialize [Replica Location] [Dirty], [cnt], and [ver] in Chunk List when the relevant chunk replicas have been created. Iteration: 1: while Storage server is active do 2: if An access request to the chunk then 3: / Other Replica has been updated / 4: if [Dirty] == 1 then 5: Return the latest Replica Status; 6: break; 7: end if 8: if Write request received then 9: [ver] ââ I/O request ID; 10: Broadcast Update Chunk List Request; 11: Conduct write operation; 12: if Receiving ACK to Update Request then 13: Initialize read count 14: [cnt] ââ 1; 15: else 16: /Revoke content updates / 17: Undo the write operation; 18: Recover its own Chunk List; 19: end if 20: break; 21: end if 22: if Read request received then 23: Conduct read operation; 24: if [cnt] > 0 then 25: [cnt] ââ [cnt] + 1; 26: Compute [Freq] 27: if [Freq] >= Configured Threshold then 28: Issue adaptive replica synchronization; 29: end if 30: end if 31: end if 32: else 33: if Update Chunk List Request received then 34: Update chunk List and ACK 35: [Dirty] ââ 1; break; 36: end if 37: if Synchronization Request received then 38: Conduct replica synchronization; 39: end if 40: end if iv.PERFORMANCE RESULTS The replica in the target chunk has been modified by the primary SSs will retransmits the updated to the other relevant replicas, and the write latency is which is required time for the each write ,by proposing new mechanism adaptive replica synchronization the write latency is measured by writing the data size. Fig:2 Write latency By the adaptive replica synchronization we can get the throughput of the read and write bandwidth in the file system. We will perform both I/O data rate and the time processing operation of the metadata. Fig.3.I/ O data throughput VCONCLUSION In this paper we have presented an efficient algorithm to process the large amount of the concurrent request in the distributed file system to increase the performance and reduce the I/O communication bandwidth. Our approach that is adaptive replica synchronization is applicable in distributed file system that achieves the performance enhancement and improves the I/O data bandwidth with less synchronization overhead. Furthermore the main contribution is to improve the feasibility, efficiency and applicability compared to other synchronization algorithm. In future, we can extend the analysis by enhancing the robustness of the chunk list REERENCES [1] Benchmarking Mapreduce implementations under different application scenarios Elif Dede Zacharia Fadika Madhusudhan,Lavanya ramakrishnan Grid and Cloud Computing Research Laboratory,Department of Computer Science, State University of New York (SUNY) at Binghamton and Lawrence Berkeley National Laboratory [2] N. Nieuwejaar and D. Kotz, ââ¬Å"The galley parallel file system,â⬠Parallel Comput., vol. 23, no. 4/5, pp. 447ââ¬â476, Jun. 1997. [3] K. Shvachko, H. Kuang, S. Radia, and R. Chansler, ââ¬Å"The Hadoop distributed file system,â⬠in Proc. 26th IEEE Symp. MSST, 2010, pp. 1ââ¬â10, [4] M. P. I. Forum, ââ¬Å"Mpi: A message-passing interface standard,â⬠1994. [5] F. Schmuck and R. Haskin, ââ¬Å"GPFS: A shared-disk file system for large computing clusters,â⬠in Proc. Conf. FAST, 2002, pp. 231ââ¬â244, USENIX Association. [6] S. Weil, S. Brandt, E. Miller, D. Long, and C. Maltzahn, ââ¬Å"Ceph: A scalable,high-performance distributed file system,â⬠in Proc. 7th Symp. OSDI, 2006, pp. 307ââ¬â320, USENIX Association. [7] W. Tantisiriroj, S. Patil, G. Gibson, S. Son, and S. J. Lang, ââ¬Å"On the duality of data-intensive file system design: Reconciling HDFS and PVFS,â⬠in Proc. SC, 2011, p. 67. [8] S. Ghemawat, H. Gobioff, and S. Leung, ââ¬Å"The Google file system,â⬠in Proc. 19th ACM SOSP, 2003, pp. 29ââ¬â43. [9] The Lustre file system. [Online]. Available: http://www.lustre.org [10] E. Vairavanathan, S. AlKiswany, L. Costa, Z. Zhang, D. S. Katz, M. Wilde, and M. Ripeanu, ââ¬Å"A workflow-aware storage system: An opportunity study,â⬠in Proc. Int. Symp. CCGrid, Ottawa, ON, Canada, 2012, pp. 326ââ¬â334. [11]GfarmFileSystem.[Online].Available:http://datafarm.apgrid.org/ [12] A. Gharaibeh and M. Ripeanu, ââ¬Å"Exploring data reliability tradeoffs in replicated storage systems,â⬠in Proc. HPDC, 2009, pp. 217ââ¬â226. [13] J. Liao and Y. Ishikawa, ââ¬Å"Partial replication of metadata to achieve high metadata availability in parallel file systems,â⬠in Proc. 41st ICPP, 2012, pp. 168ââ¬â1.
Thursday, September 19, 2019
Essay --
The term Robot is a Czech word, which was coined by Karel Capek meaning "forced labor." A large number of robots these days are designed for performing repetitive manufacturing work which is complicated, hazardous and monotonous for humans to perform. The foremost basis for the advancement in the field of robotââ¬â¢s hand is replication of the human handââ¬â¢s functionality and manifestation. The research in this field progresses ever since the word Robot was coined in the play Rossumââ¬â¢s Universal Robot. The objective of this paper is to study the challenges faced while designing the Dexterous Anthropomorphic Robotic Arm to all the Researchers and students. The robots could be very functional for the handicapped and physically weak and fragile people because their sole inadequacy is overcome with the robots in the form of robotic arm or prosthetic leg. Previously the robots which were designed were massive, colossal, unreliable, non-realistic and expensive to the opera tor, so the researchers are trying to make the robots system compact at the same time inexpensive and it must convince the safety parameters for the operator. This review paper aims at suggesting some concrete solutions to the difficulties encountered so far. This paper discusses the development and advances of the Exoskeleton robots and the Dexterous Anthropomorphic Robots. The parameters in comparison are:- 1. Force Reflection function in the field Teleoperation 2. Various actuation types 3. Different sensors based on the applications 4. Complexity in the design 5. Flexibility of the model. Service robots are machines intended to work for human beings (like the industrial robot) and with human beings. The application of service robots in Real Time Operating Situations... ...r limb exoskeleton arm with 3-DOF shoulder joint and a 1-DOF elbow joint for strengthening the upper limb muscle of the patients with impaired hands. Their design allowed the patients to complete their physiotherapy sessions plus the arm prevented the patients from getting injured due to increased fluctuations of the inertial forces. This upper limb helped to recover the muscle strength because of its compactness and inexpensive design. Kang and Wang [16] improvised Tzong-Ming et.al [15] design with improved safety and with more DOF employing Adaptive control Technique. The human arm movement is nonlinear in nature; so controlling the robotic arm linearly would have been very unrealistic in the real world situations so, their idea was to control the robotic arm nonlinearly by online updating the information provided by an adaptive viewer without any extra sensors.
Presenting People in Two Scavengers in a Truck, Two Beautiful People in
Presenting People in Two Scavengers in a Truck, Two Beautiful People in a Mercedes, and Island Man In this essay I will compare the ways in which the poets present people in ââ¬Å"Two Scavengers in a truck, two beautiful people in a Mercedesâ⬠by Lawrence Ferlinghetti and ââ¬Å"Island Manâ⬠by Grace Nichols. In this essay I will look at the shape, structure, poetic devices and language in both poems. Firstly I will examine what the two poems are about and the ways how both poets portray the people in the poems. The poem ââ¬Å"Two Scavengers in a truck, two beautiful people in a Mercedesâ⬠is about a coincidence meeting of the two working class scavengers and a beautiful, rich couple in Mercedes. This poem was set in America and was aimed to show that there is class division and was commenting on American society. In this poem there is a huge contrast between rich and poor. I know this because the description of the two scavengers and the rich couple shows us the inequality that the two classes have. The poem is not set in stanzas but can be divided into 5 stages. It is more s...
Wednesday, September 18, 2019
MacBeth :: essays research papers
MacBeth à à à à à The play, MacBeth, is enriched with many characters; each categorized in different stages of Kollbergââ¬â¢s theory. Kollbergââ¬â¢s theory was about characters and their moral development through out the story. There were only seven stages in his theory, 0-6, zero meaning no morals, and six is being like Jesus. It is a short play without a major sub- plot, and it is considered by many to be Shakespeare's darkest work. In the play MacBeth, Duncan is a stage four through out the play. à à à à à A stage four, according to Kollberg, is a character orientated toward authority and maintenance of social order. A good example would be a police officer or a president. Up until his demise Duncan was orderly king. He kept peace between the lords and other countries as best as he could. Duncan was a beloved father and king to the Scottish people. à à à à à After the brutal battle between Duncanââ¬â¢s servants and the Thane of Cawdorââ¬â¢s rebels, Duncan hears news that MacBeth fought with courage like no other. Duncan is so pleased he makes MacBeth the new Thane of Cawdor. à à à à à Duncan: No more that Thane of Cawdor shall deceive Our bosom interest:--go pronounce his present death, And with his former title greet Macbeth. (Act I scene ii) What a great guy Duncan is, he is like this threw the whole play. Because of MacBethââ¬â¢s great skill in battle, Duncan grants MacBeth to be the new Thane of Cawdor. Duncan kept order by killing those who a-pose him, such as the late Thane of Cawdor. à à à à à à à à à à At Duncan's castle, the king, Malcolm and another of the king's sons, Donalbain, greet Macbeth and Banquo. Duncan announces that he will visit Macbeth at the new Thane's castle near Inverness, and then names his oldest son Malcolm as successor to the throne. Macbeth says that he will go to Inverness in to prepare for the king's arrival. But in a stage aside, Macbeth speculates that Malcolm is an additional obstacle of the throne as prophesied by the witches. à à à à à Duncan: O worthiest cousin! The sin of my ingratitude even now Was heavy on me: thou art so far before, That swiftest wing of recompense is slow To overtake thee. Would thou hadst less deserv'd; That the proportion both of thanks and payment
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