Career Development of Muslim Women Essay Example | Topics and Well Written Essays - 2000 words

Career Development of Muslim Women - Essay Example The research design that is selected for the study is an exploratory research design, in order to understand the things deeply. As explained by Zechmeister et al., (1997) survey research represents a general approach to be used when the research design is implemented. Survey research is the method of gathering data from respondents thought to be representative of some population using an instrument composed of close structure or open-ended items (questions). It is one of the most dominant forms of data collection in the social sciences gives for the proficient collection of data over broad populations, agreeable to self-administration, administration in person, by telephone, via email, and on the internet. The primary data is to be collected by conducting field research that involves face to face interviews, surveys, questionnaires and focused group interviews. Primary research involves the use of primary data for the collection of data. Primary data are that information that is collected for the first time. The primary research will be especially useful since it will provide a guideline to the most current data available on this topic from Muslim women who are about to reach either supervisory or managerial positions and also from female who are about to enter the workforce. This will help to give an idea about what challenges they face and how they feel they will compare themselves with foreigners in the workplace. There are many advantages that have been identified in the use of the survey method.

Grant Proposal Essay Example | Topics and Well Written Essays - 1000 words

Grant Proposal - Essay Example Statistical data from WIC tell us that 50% of the new mothers in this area initiate breast feeding but only 14.5% maintain breast feeding (WIC). This implementation plan will put into place a peer to peer breastfeeding program. The aim would be to improve the numbers of maintained breast feeding mothers and infants. The program is a peer to peer (buddy program) to support mothers attempting to breast feed. As noted, many women initiate the attempt (50%) but those who manage to continue are only (14%). There are many reasons for this, some of which are lack of support, confusion, fear, and anxiety (Stube, 2009). The primary goal of this program would be to increase the numbers of women who are able to maintain breast feeding. Keeping mothers breast feeding at least the first few months could improve the health of both mother and infant (Stube, 2009). It has been shown through several recent studies that peer coaching improves the continuation of breast feeding. Hoddinott, Chalmers, and Pell (2006) supported the fact that in some areas this has increased up to 35%. This is further supported by a quasi experimental evaluation done by Olson, Haidir, and Vanggel et. al. (2010) in which they found that peer to peer counseling improved initiation by 27 points and increased duration by 3 week. In Bangaladesh Hollander showed that peer counseling increased breast feeding at five months by 70% and Shafer, Vogel, and Vigas (2009) showed in their randomized control trial, an increase of 6% initiation and 9% continuation in rural low income women. Referral Peer support is provided through a network of volunteers that are trained in the problems related to breast feeding as well as having been successful at breast feeding themselves. This training will be initiated through the WIC and LaLeche League International program to assure that the new mothers are getting the support that is needed. The idea is to choose a supporting peer that has the same culture and socioeconomic background as the mother to be supported. The new mother may be referred in several ways including WIC, Public Health, Food Stamps, physician, social services, self referral and others. Access Once the mother has been referred she is contacted by a peer and given information, including classes that she can attend that prepare her for the breast feeding process. This includes such procedures as needed to harden nipples, decreasing pain on initiation of breastfeeding. After childbirth, the provide nonmedical assistance as needed to reduce frustration and anxiety in the new mother who is attempting to breast feed. This includes the mother who goes back to work. Often, the transition from breastfeeding to pumping and bottle feeding is extremely difficult (Dennis, Hodnett, & Gallop, 2002). The peer who has been successful through this transition can help quite a lot in improving this transition, keeping the mother breast feeding for a longer period of time. This program would be based in the community clinics in each of these counties but the peers are available through the hospital setting as well as phone. Telephone counseling and support are available 4 times per day. Peer Training Peers will be expected to attend classes on basic breastfeeding management, nutrition, infant

Investigating the Inverse Square Law Essay Example for Free

Investigating the Inverse Square Law Essay The inverse square law can also be applied to gravity, electric fields, light and sound. In relation to electric fields, the electric force in Coulombs law follows the inverse square law: If gamma rays are a form of electromagnetic radiation and undergo negligible absorption in air, then the intensity, I, should vary inversely as the square of the distance between the source and the detector.2 Air acts as an almost transparent medium to ?-rays, and the intensity (rate of energy arrival per unit area) of ?-rays emanating from a point source varies inversely as the square of the distance from the source. 3 ?-rays fall into many distinct monoenergetic groups because of their variable energies which emanate from any particular emitter. The least energetic radiation will only pass through very thin foils, whereas the most energetic can penetrate up to several centimetres of lead.4 As ?-rays tend to produce 10-4 times as many ion-pairs per unit length as ?-particles do, measurements are usually carried out using a Geiger-Mller (G-M) tube.5 G-M tubes are widely used for detecting radiation and ionising particles. Source: http://en.wikipedia.org/wiki/Geiger-M%C3%BCller_tube The anode is a central thin wire which is insulated from the surrounding cathode cylinder, which is metal or graphite coated. The anode is kept at a positive potential and the cathode is earthed. The tube may also have a thin mica end window.6 When radiation enters the tube, a few electrons and ions are produced in the gas. If the voltage is above the breakdown potential (The minimum reverse voltage to make the diode conduct in reverse)7 of the gas, the number of electrons and ions are greatly multiplied. The electrons are attracted to the anode, and the positive ions move towards the cathode. The current flowing in the high resistance resistor (R) produces a pd which is amplified and passed to a counter which registers the passage of an ionising particle or radiation through the tube.8 The tube cannot be filled with air as the discharge persists for a short time after the radiation is registered. This is due to electrons being emitted from the cathode by the positive ions which arrive there. Instead, the tube is filled with argon mixed with a halogen vapour which quenches, reduces the intensity, the discharge quickly, ensuring that the registered radiation does not affect the recording of other ionising particles. When the G-M tube is detecting one particle, if another enters the tube it will not be detected. This is known as dead time; the average maximum being approximately 90 microseconds.9 Because this number is so small, it can justifiably be ignored for this experiment. Background radiation must be taken into account when taking readings from the source. Background radiation primarily comes from cosmic radiation and terrestrial sources.10 This radiation will affect the count and must be corrected. The level of this radiation varies with location and must be measured before conducting the experiment. Since I ? C: C ? 1 (d + d0)2 Therefore: d + d0 ? 1 Vc I ? 1 r2 Where: * d = distance * d0 = distance to be added to the measured distance, d, because of the reference point on the holder not coinciding with the source, and the effective counting space inside the GM tube may not be close to the window, then r = d + d0. * I = intensity * C = corrected count rate the measured count rate minus the reading for background radiation11 Corrected count rate against 1/(d + d0)2 should produce a straight-line graph, passing through the origin, if the inverse square law is followed. Source: A Laboratory Manual of Physics -F. Tyler, Page 269 The gradient of the line obtained is a measure of the strength of the source used in the experiment.12 The strength of the source is the activity, A=?N. The decay constant, ?, can be calculated using ? = ln2/t1/2 where the value for the half-life of Co-60 is 5.2714 years13. Therefore: ? = ln2/t1/2 = 0.693/1.664 x 108 = 4.175 x 10-9 The gradient of the straight line graph will equal ?N0e-?t so ? = gradient/ N0e-?t Safety Precautions: To ensure the utmost safety before, during and after this experiment, some guidelines should be followed: * Food and drink should not be consumed whilst in the same room as the source * Food items should not be stored in the same room as the source * The source should only be handled with long handled source handling tongs, and as little as possible * Hands should be washed thoroughly after contact with the source * If in contact with the source for an extended period, it is recommended that a monitoring badge is worn * As the source will radiate in only one direction, it should not be pointed at anyone * The source should be locked away in a lead lined box when not in use * Open wounds should be covered securely * Protective gloves should be warn when handling potentially contaminated items Errors: To reduce the possible errors within the experiment, an optical bench will be used to ensure that the G-M tube and the source are properly aligned throughout, as the source radiates in one direction, the alignment must remain standard. Also, for small distances, specifically the distance d0 which is the distance the source is from the opening of the holder plus the distance of detection from the window in the G-M tube, vernier callipers will be used to hold as much accuracy as possible. Vernier callipers read to fractions of a millimetre, making them much more accurate than other measuring devices. Other distances, such as distance d, can be measured with a metre rule as the distances are larger which decreases the possible error in measuring. There will also be the error of human reaction times from observing the final count and pressing the stopclock. To ensure accuracy, practise using the stop-clock and count switch until reasonably consistent results can be obtained. Preliminary Work: To decide on an appropriate voltage to use, the G-M tube and source set-up should be tested. Place the source approximately 10 cm from the window of the G-M tube and increase the voltage slowly, until the count rate stops changing dramatically. Plot a graph of the count-rate, C, against EHT voltage, V. Record the voltages V1 and V2 between which the rate of counting does not vary too much. If the rate of counting begins to rise after remaining much the same for a range of voltage do not raise the voltage any higher or the tube may suffer damage.14 The optimum operating voltage will be halfway between the voltage where the plateau begins and the voltage where it ends. To decide on the range of distances used, the source was moved close to the window of the G-M tube and was moved back slowly until the scaler could count adequately (5 cm). This is the smallest distance that will be used. To find the other extreme, the source was moved back until the count rate fell to a low value, but could still provide adequate results (35 cm). d (cm) N t1 (s) t2 (s) t3 (s) Ave. t 5.00 10,000 212 209 209 210.00 10.00 10,000 773 779 790 780.67 15.00 1000 180 220 205 201.67 20.00 1000 317 355 345 339.00 25.00 1000 457 469 437 454.33 30.00 1000 543 510 542 531.67 35.00 1000 749 720 735 734.67 From these preliminary results I have decided to time for 10,000 counts at 5 cm from the source, 5000 counts for 10cm from the source, and 1000 for 15 30cm. This is because any higher values will take considerably longer to measure. I will take three readings from each, as radioactive decay is a random process and it would be unlikely for more than three readings to be similar. An average will be calculated from the three values and the reading for the background radiation will be subtracted to find the corrected count rate. Equipment: * Geiger-Mller tube of , ? sensitive type * Decade scaler with variable EHT supply * Sealed cobalt-60 source sealed to prevent contact with the source and to prevent isotropic radiation * Long handled source handling tongs to prevent contact with the source * Optical bench with source holder to ensure constant alignment * Stop-clock, readable to at least two decimal places * Vernier callipers to measure the distance d0 to a higher level of accuracy * Metre rule to measure the distance d Diagram: Where: * B is the optical bench with source holder, H * G is the Geiger-Mller tube * S is the decade scaler with variable EHT supply * R is the sealed radioactive source, cobalt-60 Cobalt-60 will be used as the gamma source as it is easily produced, by exposing natural cobalt to neutrons in a reactor, and therefore easy to acquire.15 It also produces ?-rays with energies of 1.17 MeV and 1.33 MeV. Method: 1. Clamp the G-M tube to one end of the optical bench and attach it to the input socket of the scaler 2. Set the variable EHT voltage on the scaler at a minimum and turn it on, allowing a few minutes for the scaler to warm up 3. Change the variable EHT voltage on the scaler to the value found through preliminary work and set it to count pulses from the G-M tube 4. Start the stopclock and measure the background radiation for an adequate length of time, e.g. 25 minutes, as background radiation is variable 5. Place the holder containing the ?-source at 5.0 cm from the window of the G-M tube 6. Start the stopclock and stop after 10,000 counts are registered. Record this value and repeat twice 7. Move the ?-source to 10.0 cm from the window of the G-M tube and repeat procedure 5, instead only counting 5000 counts 8. Move the ?-source to 15.0 cm from the window of the G-M tube and repeat procedure 5, instead counting only 1000 counts 9. Repeat procedure 7 for sets of 5.0 cm until a distance of 30.0 cm is reached 10. Tabulate these results and find the average count rate for each distance 11. Evaluate 1/(d + do)2 12. Using the recorded value for background radiation, evaluate the corrected count rate for each distance 13. Plot the graph of corrected count rate against 1/(d + do)2 References: 1 http://hyperphysics.phy-astr.gsu.edu/Hbase/forces/isq.html 2 Essential Pre-University Physics Whelan Hodgson, page 953 3 Essential Principles of Physics Whelan Hodgson, page 472 4 Essential Principles of Physics Whelan Hodgson, page 472 5 Essential Principles of Physics Whelan Hodgson, page 472 6 http://www.imagesco.com/articles/geiger/03.html 7 http://en.wikipedia.org/wiki/Breakdown_voltage 8 Essential Pre-University Physics Whelan Hodgson, page 406 9 http://www.imagesco.com/articles/geiger/03.html 10 http://en.wikipedia.org/wiki/Background_radiation 11 Advanced Level Practical Physics M Nelkon JM Ogborn, page 218 12 A Laboratory Manual of Physics F. Tyler, page 269 13 http://en.wikipedia.org/wiki/Cobalt * 14 Advanced Level Practical Physics M Nelkon JM Ogborn, page 212 15 http://en.wikipedia.org/wiki/Cobalt

Effect of Parasite Diversity and Age on Antibody Responses

Effect of Parasite Diversity and Age on Antibody Responses This study was aimed at investigating the effect of parasite diversity and age on the levels of antibody responses to P. falciparum in individuals living in an area of seasonal malaria transmission. Two blood stage antigens (MSP1(19), AMA1) and two liver stage antigens (CSP and celTOS), making a total of four antigens were selected to be used for the study. These antigens were tested in archived plasma samples with ages ranging from 1year to 70 years. The samples were collected close to the end of the rainy season in the months of November and December (wet season), and April the following year at the end of the dry season (dry season). Of the samples collected in the wet season, 34.1% had parasites whiles those collected in the dry season was 15.5% (table 1). Appawu (2004) reported the seasonality of malaria transmission in a neighbouring district (Kasena Nankana District), being high in the wet season and low in the dry season. The high transmission in the wet season could be due to favourable breeding grounds for mosquitoes as a result of several collections of water when it rains and in turn increase the number of vectors and hence the high number of parasites individuals are exposed to (Ahmed, 1989). This data is in agreement with an earlier finding in northern Ghana by Apawu and his group where they found high parasite carriage, and high multiplicity of infection (MOI) in the wet season compared to low carriage and MOI in the dry season. Parasite carriage here means the proportion of participants with P. falciparum at enrolment. There was however no statistically significant difference in the parasite densitie s when compared between the seasons (p=0529) table 1. There was no difference in the overall ages between the wet and the dry season. (p=0.937). This was expected as most of the samples collected were from the same individuals in the two seasons. To explore age related pattern of P. falciparum infection, participants were categorized into three (3) age groups: under 5 years, between 5 and 15 years, and over 15 years. The data shows the 5-15 year olds having higher infected proportion in the two seasons (table 2). Parasitaemia was also determined using a more sensitive method, the polymerase chain reaction (PCR). The PCR data confirmed the microscopy data because the 6-15 year group also had higher proportion of individuals carrying parasites at enrolment. This could be due to the fact that they are the more exposed group with incompletely developed immune systems. In contrast, under-fives who are much younger are likely to receive better care from parents thus preventing them from being infected with the parasites. Bed net usage could be one way of protecting the children. Also because of their younger ages they may not be allowed roam around freely. Adults on the other hand despite having possible similar exposure as 5-15 ye ar olds, seem to have less parasites because of their developed anti-malarial immunity. This partial immunity is gained with age and repeated exposure thus making the younger individuals more susceptible to infection (Pratt-Riccio et al., 2005; Dodoo et al., 2008). Thus the over 15 year group who are older, had the least proportion of infection (table 2). The study also sought to determine the relationship between IgG levels and age. Figures fig 7 and 8 shows the correlation plots between age and IgG levels in the wet and dry season respectively. There was a significant positive correlation between and IgG levels raised against AMA1-FVO, MSP1, CSP and CelTOS in the wet season. And for the dry season, the significant correlation was between age and IgG levels to AMA1-FVO, MSP1, CSP, and Celtos. The correlation coefficient (r2) and the p values are indicated on each plot. There was however no correlation between age and AMA1-3D7 (r2 0.0142, p 0.0699) for the wet season, and AMA1-FVO (r2=0.0114, p= 0.0594) for the dry season. The significant correlations were however very weak. This indicates that though IgG levels increased with age, the association between the antibody levels and age was not so strong and that the influence of age on the amount of antibodies produce against most of the antigens in the population studied was not that mu ch. However the age dependent increase in IgG response to the antigens tested may be due to the mature immune system in adults, and could also be due to cumulative exposure to infection over time (Nebie 2008). It is however not known what might be the reason for the lack of correlation with age to AMA1-3D7, and AMA1-FVO, in the wet and dry season respectively. IgG responses to the two AMA1 alleles (3D7, and FVO) was plotted against each other to determine which is more predominant in the study population. There was a strong correlation between the antibody levels of AMA1 alleles of 3D7 and FVO (r2=0.8382, p) implying that both strains are circulating in the study site during the wet season. A similar trend was observed in the dry season but with a lower correlation coefficient compared to the wet season (r2= 0.5302, p). Antibody titres against recombinant antigens have often been linked to protection from clinical disease (Polley 2004, Nebie 2008, Dodoo 2008, Dodoo 1999, Cavanagh 2004). Where high anti-malaria antibodies is interpreted to mean protection from clinical disease. The important role of antibodies was demonstrated by the passive transfer of purified IgG from immune donors to individuals with P. falciparum infection, which reduced parasitaemia (Cohen 1961, sabchareon 1991). Apical membrane antigen-1 AMA1 and MSP119 have been associated with reduced risk of clinical malaria (Branch 1998, Osier et al 2008). Anti-CSP antibodies have also been found to be partially protective where in Kenya high anti-CSP, anti-LSA, and anti-TRAP ( pre-erythrocytic ) antibodies were demonstrated to be associated with relative protection from reinfection (John CC 2005, 2008). The most advance malaria vaccine, RTS’S which is a subunit of CSP, has been found to protect to about 35-55% in children 5-17 mont hs for about 8 months (Alonso 2004,) . Also anti-CelTOS antibodies have been shown to inhibit invasion of herpatocytes by sporozoites in mice (Bergmann-Leitner 2010). In this study, antibody responses to the antigens, AMA1-3D7, AMA1-FVO, MSP119, CSP, and CelTOS were determined using indirect ELISA. The optical densities (OD) of the antigens were converted to arbitrary units (AU) where the highest OD for each antigen was awarded an arbitrary unit of 4, to allow for comparison between antigens the antigens tested. Antibodies to AMA1 in individuals living in malaria endemic regions have been reported to be high, (Thomas,1994, chelimo, 2005), and this study thus reports high antibodies to AMA1-3D7, and AMA1-FVO compared to MSP1(19), CSP, with anti-CelTOS antibodies being the least. (Fig: 3) in both wet and dry seasons. The data also shows total IgG responses in the wet season was higher than the in the dry season for all the antigens (p) except MSP119 where no statistical differences wa s found between the two seasons (p=0.85) (Figure 3). The seasonal changes in antibody response could be as a result of higher number of vector (mosquitoes) in the community in the wet season which could in turn increase the exposure of the population to parasites and also introduce new parasite clones/strains in the population and hence the high anti-malaria antibodies found in the wet season. In contrast, the dry season cause a reduction in the number of breeding sites for the vectors reducing their population resulting in minimal exposure and hence the low antibody levels. In malaria endemic regions, the number of different clones of Plasmodium falciparum parasites infecting a person could be a transmission indicator, an indicator of the hosts immune status, and a useful parameter in evaluating malaria control interventions (Babiker 1999, Arnot 1998, mayengue 2009). It has also been reported that parasite diversity in high malaria transmission areas are high and that individuals could carry multiple genotypes (clones) but the opposite pertains in low endemic areas with most infections being monoclonal (Peyerl-Hoffmann 2001, Bakiker 1997, Haddad 1999). Genotyping was done using block 3 region of the MSP 2 gene (Smythe et al. 1990) because of its high polymorphic nature (Felger et al.,1994 1999; Robert et al., 1996). Also MSP2 was selected to be used for this study because of the high allelic diversity observed in Ghana and other countries bordering Ghana with as many as 154 alleles in Ghana and about 50 genotypes in CÃ ´te d’Ivoire. ( Silue 2006 , falk 2006). The results from the two seasons using the 3D7 allelic family primers showed high mean multiplicity of infection in the wet season compared to the dry season (1.76, and 1.46, p=0.001) table 3. In both seasons, the number of infections per person ranged from 0 to 4. A similar degree of multiple infections has been reported in other African settings (Ntoumi et al., 1995,Beck 1997, Engelbrecht 1999). The samples used for this study was collected in asymptomatic individuals and the high multiplicity of infection found in the wet season could probably be due to high rate of exposure as a result of favourable breeding conditions compared to the dry season. This study did not find any significant correlation between MOI and age in both seasons (p=0.5768 for wet season, and p=0.4158 for the dry season). The samples were then grouped into two based on whether positive or negative using PCR to detect Plasmodium parasites. No differences were detected in the IgG levels between th e antigens tested in both seasons when compared based on the PCR data. This result is similar to that found when microscopy was used except that anti-CelTOS IgG in the parasitaemic group was higher than the non-parasitaemic group when microscopy was used. The disparity in the CelTOS report could be due to the lower sample size analysed using PCR compared to the microscopy. Apical membrane antigen AMA1 has been found to be a promising blood stage vaccine candidate antigen but this potential has been dampen due to extensive polymorphism (Remaque 2008).

A Thousand Splendid Suns :: Literary Analysis, Nana, Mariam, Laila

The novel A Thousand Splendid Suns explores the plight of women in Afghanistan; the focus is put on three women Nana, Mariam and Laila. Women in Afghanistan often face difficult and unfortunate situations. In this essay we will examine some of these unfortunate situations for women. Let us start with Nana Mariam's mother. Nana gets pregnant and is thrown out of her current home. "The wives demanded he throw her out"(Hosseini 6). Her father disowns her. "Nana's own father, who was a lowly stone carver in the nearby village of Gul Daman, disowned her. Disgraced, he packed his things, never to be seen or heard from again"(6). She lives the rest of her life in a small hut while Mariam's father lives in a mansion. "And so, your father built us this rathole"(9). She lives her life as a single mother. Her only chance of every getting married was destroyed by her having an attack. "The wedding dress was stashed away. After that, there were no more suitors"(10). Next let us examine Mariam's plight. She is denied the chance to go to school. "What's the sense schooling a girl like you? It's like shinning a spitspoon." She lives with a cruel mother. "You are a clumsy little harami. This is my reward for everything I've endured. An heirloom-breaking, clumsy little harmi"(4). She has a neglectful father. "Mariam kept thinking of his face in the upstairs window. He let her sleep on the street. On the street. Mariam cried lying down"(35). Her mother commits suicide and Mariam blames herself. "You stop that. These thoughts are no good, Mariam jo. You hear me, child? No good. They will destroy you. It wasn't your fault. It wasn't your fault no". Mariam nodded, but as desperately as she wanted to she could not bring herself to believe him"(44). She is forced into marriage to a man she does not love. "I don't want to," Mariam said. She looked at Jalil. "I don't want this. Don't make me"(47). She is sent to live in a strange city were she does not kno w anyone. She has a physically abusive husband. "Then he was gone, leaving Mariam to spit out pebbles, blood, and the fragments of two broken molars"(104). Her husband is cruel and says hurtful words to her. She can not do anything right in his eyes. When he is not ignoring her he is being verbally or physically abusive towards her.

The Future of Renewable Energy and RE Policy Mechanisms Essay -- Energ

Albert Einstein, the famed physicist, once noted that â€Å"We can’t solve our problems with the same kind of thinking we used when we created them.† Today’s world is faced with the dual threats of climate problems brought on by the use of fossil fuels and the economic challenge caused by the increasing scarcity and demand for those fossil fuels. It is time for society to look beyond the limited and dirty fossil fuels as the energy of choice and promote the use of the abundant renewable energy sources we are endowed with. Because the subsidies to wind and other alternative energies ultimately generate more income than their initial costs and because we continue to subsidize fossil fuels, we should modify governmental tax policy to incentivize and establish the renewable energy industries so that they remain competitive with fossil fuels. Estimates that the world’s population will expand from today’s 6.7 billion to more than 9 billion in 2050 foretell of a coming demand explosion for energy (Friedman 29). Increased requirements for food, transportation, and consumer goods will result in larger energy consumption on many fronts. Fossil fuels, which currently provide an estimated 80 percent of the world’s energy supply, have already been consumed for more than a century and their finite supplies are becoming increasingly difficult to find and more expensive to produce (â€Å"Prediction of Energy Consumption World-wide†). The combination of increasing energy demand and depleting fossil fuel supplies calls for government action to incentivize the production and use of the unlimited supplies of renewable energies. Inducements may come in the form of direct subsidies to the producers of renewable energy, construction of the necessary transm... ...n of Energy Consumption World-wide.† Time for change. n.p., n.d. Web. 2 March 2012. Puzzanghera, Jim and Kathleen Hennessey. â€Å"White House Unveils Corporate Tax Changes to Fix ‘Unfair’ System.† latimes.com. Los Angeles Times, 22 Feb. 2012. Web. 2 March 2012. Shah, Anup. â€Å"World Military Spending.† globalissues.org. n.p., 2 May 2011. Web. 2 March 2012. Wald, Matthew L. â€Å"Fossil Fuels’ Hidden Cost in Billions, Study Says.† NYTimes.com. The New York Times, 19 Oct. 2009. Web. 8 March 2012. â€Å"What’s the Real Cost of Fossil Fuels?† hubpages.com. riversedge, n.d. Web. 8 March 2012. Wiser, Ryan, Mark Bolinger, and Galen Barbose. â€Å"Using the Federal Production Tax Credit to Build a Durable Market for Wind Power in the United States.† Ernest Orlando Lawrence Berkeley National Laboratory. Clean Energy States Alliance, Nov. 2007. Web. 27 Feb. 2012.

The H Reflex Test Health And Social Care Essay

The H-reflex trial as Delwaide. , and Fisher. , explained can be utile for the nonsubjective step of motor neuron hyperex-citability Although assorted techniques for this survey have been introduced, the ratio of the maximal amplitude of H-reflex to maximum M-amplitude ( H/M ratio ) is most practical because of the easier technique. H/M ratios tend to be increased in patients with CNS lesions and upper motor nerve cell marks, and enlisting curves are altered in a mode consistent with increased irritability of the cardinal motor nerve cell pool. Conversely, H reflexes during cataplexy are depressed. H-reflex surveies in patients with CNS disfunction have been helpful for understanding the pathophysiology of these upsets. Many Potential benefits could deduce from RSWT, compared with ESWT, because it is less painful consequence and therefore can be administered without anaesthesia, thereby cut downing the hazards of intervention for patients. Furthermore, due to the radial emanation of RSWT, the calcification, one time located radiographically, is certainly included inside the moving ridge extension country. Contrarily, when the daze moving ridge is focused, as occurs in the ESWT, refocusing of the applier is sporadically necessary to be certain that the moving ridges hit the calcification. [ 37 ] Furthermore, no ultrasound usher is needed to execute curative applications of RSWT. [ 13 ] A direct consequence of daze moving ridges on fibrosis and on the rheological belongingss of the chronic hypertonic musculuss in CP should be considered together with the documented curative consequence on bone and sinew diseases. [ 15-19, 38-39 ] Possible repressive effects of daze moving ridges on hypertonic musculuss and sinews might be attributed to the consequence of mechanical stimulations of daze moving ridges on the musculus fibres following to the sinew that can non be excluded as suggested by ( Leone and Kukulka. [ 40 ] Besides uninterrupted or intermittent tendon force per unit area produced by daze moving ridge could diminish the spinal irritability without durable clinical or neurophysiological effects. Another possible mechanism was the mechanical vibratory stimulation, which reduces irritability of motor nerve cells and induces the alteration of F moving ridge. [ 40 ] Despite transitory and short enduring repressive continuance of mechanical vibratory stimulation on musculus, the clinical consequences of this survey continued for hebdomads and assisted in suppression of monosynaptic irritability of tendoachillis as revealed by take downing of the H/M ratio in the survey group.This happening proposing a different mechanism of action need farther probe and account. Geldard [ 41 ] in his work found that Pressure technique has been therapeutically effectual to change motor response and when force per unit area is continuously applied, there is a diminution in sensitiveness. Tuttle and Mc Clearly [ 42 ] added that mechanical force per unit area ( force ) , provided continuously is repressive, possibly because of force per unit area version. It is hypothesized that this deep force per unit area activates pacinian atoms, which are quickly altered receptor ; nevertheless, the version may change with the strength of stimulation and with the country of the organic structure being stimulated. This force per unit area seemed most effectual on sinewy interpolations. [ 42 ] Pacinian Corpuscles as Quillin [ 43 ] explained are located deep in The corium of the tegument: in entrails, mesenteries, and ligaments and near blood vass. Interestingly. they are most plentiful in the colloidal suspensions of the pess, where they seem to exercise some influence on position, place, and ambulation. The pacinian atoms adapt rapidly and they are activated by deep force per unit area and speedy stretch of tissues. [ 43 ] Umphred et al. , [ 43 ] reported that Because of the rapid version, a kept up stimulation will efficaciously do suppression by forestalling farther stimulations from come ining the system. The technique of deep force per unit area is applied to hypersensitive countries to normalise skin responses. Besides, they recommended that changeless force per unit area applied over the sinews of the wrist flexors may stifle flexor hypertonicity every bit good as elongate the tight facia over the sinewy interpolation. The force per unit area is applied across the sinew with increasing force per unit area until musculuss relax. [ 43 ] Pierson [ 45 ] recommended that the kept up force per unit area is effectual in cut downing spasticity if it is applied to the sinew than the musculus belly. It is thought to move as a counter thorn that overwhelms centripetal ability to intercede other types of stimulation. H-reflex testing has shown that the motor nerve cell is inhibited in the sinew being pressed. [ 45 ] In their work about the consequence of soleus musculus force per unit area on alpha motor neuron automatic irritability in topics with spinal cord hurt ( SCI ) Robichaud and Agostinucci [ 46 ] found that Circumferential force per unit area applied to the lower leg decreased soleus musculus alpha motor neuron automatic irritability in topics with SCI. [ 46 ] The consequences of survey tested the effectivity of intermittent tendon force per unit area on the depression of alpha motor neuron irritability. Kukulkaet al. , [ ] showed that the application of intermittent force per unit area to a sinew produced a statistically important lessening in the amplitude of the H physiological reaction, bespeaking a depression in alpha motor neuron irritability. This depression was sustained over a 30-second period of intermittent force per unit area application. These findings support those reported earlier by KuKulka et al. , [ 47 ] in which sustained tendon force per unit area was found to bring forth a transeunt suppression of motor neuron irritability. Intermittent tendon force per unit area, hence, may be utile for patients who require a sustained decrease in musculus activity, and sustained tendon force per unit area may turn out most utile for transeunt decreases in musculus tone. [ 47 ] Sing to the repressive consequence of quiver, Maisden [ 48 ] in their surveies showed that Because its ability to diminish allergic tactile receptors through supraspinal ordinance, local quiver is considered an repressive technique.. Vibration besides stimulates cuteaneous receptors, specifically the pacinian atoms, and therefore can besides be classified an extroceptive modes. Vibrators function with frequence below 75 Hz is thought to hold an repressive consequence on normal musculus. [ 48 ] Umphred et al. , [ 44 ] concluded that low-frequency quiver used alternately with force per unit area can be extremely effectual. It should be remembered that these combined inputs use different neurophysiological mechanisms. [ 44 ] Vibration is an effectual manner to stamp down the H-reflex as stated by Delwaide. , [ 49 ] and Braddom & A ; Johnson. [ 50 ] Somerville and Ashby [ 51 ] added that Using a vibrating stimulation to the Achilles sinew in the limb under probe consequences in depression of the H-reflex that may outlive the continuance of the quiver by several hundred msecs. The mechanism of H-reflex suppression as explained by Taylor et Al. , [ 52 ] is unknown but may affect presynaptic suppression through primary spindle sensory nerve fire or neurotransmitter depletion. The consequences of this survey agreed with the determination of the work done by Manganotti and Amelio [ 53 ] who used 1,500 shootings of daze moving ridge to handle flexor musculuss of the forearm and 800 shootings for each interosseus musculus of the manus with 0.030 mJ/mm2 strength. They reported that ESWT on the flexor hypertonic musculuss of the forearm and the interosseus musculuss of the manus was effectual for the betterment of upper limb spasticity in shot patients for more than12 hebdomads. Besides the determination of Yoo et Al. [ 29 ] proved important decrease of spasticity on the cubitus flexor and carpus pronator for 1 to 4 hebdomads after 1,000 shootings of ESWT with 0.069 mJ/mm2 strength. In their survey aimed for measuring the spasticity and electrophysiologic effects of using extracorporeal daze wave therapy ( ESWT ) to the gastrocnemius by analyzing F moving ridge and H-reflex. Sohn et al. , [ 30 ] concluded that after using ESWT on the gastrocnemius in shot patients, the spasticity of the mortise joint plantarflexor was significantly improved, with no alterations of F wave or H-reflex parametric quantities. They recommended that farther surveies are needed to measure the mechanisms of the antispastic consequence of ESWT. The important betterment in the development of walking accomplishment in the participant kids in the survey group might be due to the application of traditional neurodevelopmental intercession technique in add-on to the long permanent decrease of spasticity produced by daze moving ridge therapy and its function in take downing calf musculus spasticity.This inhibitory consequence on tendoachillis hypertonus assist the kids in the survey group to develop their motor map and walking abilities which was positively reflected on the gross motor map step mark in the walk-to portion following station intervention period The transition of Achilles tendon hypertonicity and its influence on bettering motor functional and walking abilities for hypertonic CP kids is attendant with the position of Natarajan and Ribbans [ 54 ] who strongly affirmed on that aa‚ ¬Aâ€Å"Achilles tendon is involved in a assortment of padiatric conditionsaa‚ ¬A? .So its shortening or failing is a characteristic of many neurological conditions impacting the cardinal or peripheral nervous system such as intellectual paralysis. And Achilles tendon spasticity, failing or contractures in these conditions lead to detaining of walking and pace abnormalcies.