Aim: To establish the prevalence and risk factors for hypertension, diabetes and obesity among teaching and non-teaching staff of Bishop Stuart University, Mbarara-Uganda. Background: None communicable diseases (NCDs)...Aim: To establish the prevalence and risk factors for hypertension, diabetes and obesity among teaching and non-teaching staff of Bishop Stuart University, Mbarara-Uganda. Background: None communicable diseases (NCDs) are projected to exceed communicable diseases as the most common causes of death by 2030 in Africa. Most sub-Saharan African countries however lack detailed countrywide data on hypertension and other NCDs risk factors. Cognizant of Uganda’s recent inclusion of Hypertension and diabetes in the health policy agenda, this study was conducted among the university staff in a rural setting to provide benchmark information for design of appropriate interventions. Study Design: This was a descriptive cross-sectional, institutional based survey design. Place and duration of the study: This study was conducted among the teaching and none teaching staff of Bishop Stuart University Mbarara, Uganda from 18th April-6th June 2017. Methodology: A structured questionnaire was used to gather social demographic and risk factors data from the university workers at their work stations. Blood pressure of each participant was measured and Hypertension was defined as systolic BP > 140 and/or diastolic (BP) > 90 mmHg. Anthropometric measurements: Body Mass index (BMI) was done by weight in (Kg) and Height in (M2) to establish weight levels. Obesity was considered at BMI > 40. A random Blood Sugar (RBS) > 200 mg/dl was considered as diabetic. Epi-info version 7 was used to enter data, analyzed using SPSS version 19. Results: A total of 156 University staff aged 25 - 75 years of both sexes, mean age 42 ± 8 were interviewed of whom 51% were males. About 15% were administrative staff, 55% teaching staff, 3% senior lecturers and professors and 25% non-teaching staff. The prevalences of Hypertension, Diabetes, and obesity were 7.7%, 16%, and 28% respectively. But also majority (60.2%) were found at risk of developing both hypertension and diabetes. Less than 20% of the participants were knowledgeable on causes, signs and symptoms and preventive measures for Hypertension but had moderate knowledgeable of the risk factors, the most frequently mentioned risk by 71% was lack of exercise. Despite the awareness of risk factors, majority (61.3%) had not done any form of exercise and 64.1% had not had regular Blood pressure check ups. The study also demonstrated a statistically significant relationship between those aged more than 40 years and having hypertension (X2 = 5.82, P = 0.015, OR = 4.2). Likewise the risk of Diabetes increased with increasing age. Lecturers aged 40 years and above were 5.6 times likely to have diabetes compared to those aged less than 40 years (OR = 5.6, X2 = 16 , P = 0.0005). A significant number of respondents 57/156 (36.5%) reported history of HPT among their family members. Prevalence of obesity and overweight was observed higher in senior administrative staff and lecturers than in lower cadre staff 49% and 34% (p 0.01). Conclusion: Hypertension, Diabetes and obesity are conditions prevalent among the teaching and none teaching staff of BSU, but knowledge on risk factors, clinical presentation and preventive strategies is limited. Routine physical exercises...展开更多
E-learning involves programs that use the internet to allow instructional material beyond classroom walls for interaction between educators and the learners.It is powerful tool in education if the right pedagogy is us...E-learning involves programs that use the internet to allow instructional material beyond classroom walls for interaction between educators and the learners.It is powerful tool in education if the right pedagogy is used.The purpose of the study was to interrogate types of e-learning modes,impact,success and challenges of e-learning at Bishop Hannington Institute of Theology and Development,Mombasa.The study adopted desk top research by observation of students and educators use of e-learning at BHI(Mombasa)and analyzed documents,books,journals on the patterns of e-learning in relation to BHI.The study reviewed the synchronous and asynchronous types of e-learning modes.Additionally,the study evaluated advantages and disadvantages of e-learning at BHI.The study aim was to give information to other universities,middle level colleges and secondary schools on the place of e-learning in modern education patterns and how best it can be improved.The study created awareness to the educators,students and the general public the need for e-learning.展开更多
Fibrous-type flters are used to capture dust particles in mining and other occupations where personnel are exposed for prolonged periods.Dust cleansing devices including fooded-bed dust scrubbers use these mesh-type m...Fibrous-type flters are used to capture dust particles in mining and other occupations where personnel are exposed for prolonged periods.Dust cleansing devices including fooded-bed dust scrubbers use these mesh-type multi-layered flters.These flters trap dust particles efciently on their surface and inside their mesh.However,their continued operation leads to dust build-up and clogging.This results in increased resistance of the flter and lowered airfow rate through the scrubber.This could potentially enhance the exposure of the miners.A non-clogging self-cleaning impingement screen type dust flter was designed by the authors for use in mining and industrial dust cleansing applications.The flter guides dirt-laden air through rapidly turning paths which forces it to shed heavier particles.The particles impact one of the impermeable solid metallic flter surfaces and are removed from the airstream.A full cone water spray installed upstream prevents any surface buildup of dust.This paper summaried the computer models generated to show the flter operations and laboratory experiments including optical particle counting to establish the cleaning efciency.展开更多
Supercapacitors are promising energy storage devices in current century due to their high specific capacitance, cyclic stability, high power density, and high voltage rating. Due to their excellent electrochemical pro...Supercapacitors are promising energy storage devices in current century due to their high specific capacitance, cyclic stability, high power density, and high voltage rating. Due to their excellent electrochemical properties, supercapacitors are invariably used in a multitude of applications ranging from portable electronics to electric vehicles. The electrochemical performance of a supercapacitor mainly depends on the type of electrode-active material used in it. Thereby a careful selection is mandatory to achieve the excellency. Nanostructured electrode-active materials such as carbon nanomaterials, transition metal oxides,transition metal dichalcogenides(TMDs), electronically conducting polymers, etc. are invariably used for supercapacitor application. Among these, TMDs have received great interest, particularly transition metal disulfides such as molybdenum disulfide, tin disulfide(SnS_(2)), etc. Tin is abundant on the earth with excellent charge storage capabilities, attracted great scientific interest for application as electrode materials in supercapacitors. Good electronic conductivity, long cycling life and low-cost are its added advantages.Herein, we discuss the recent trends in layered two-dimensional(2D) SnS_(2)-based electrodes to develop low-cost supercapacitors. Initially, their crystal structure, basic properties, synthesis methods are discussed. Further, strategically designing electrode nanostructures to achieve excellent electrochemical performance is reviewed then after. This includes material design in terms of morphology, pore-size,and shape as well as preparation of 2D SnS_(2)-based nanocomposite electrodes. Furthermore, the challenges and future perspectives of 2D SnS_(2)-based supercapacitors are included.展开更多
Ion-acoustic solitary (IAS) waves in electron-positron-ion (e-p-i) plasma have been of interest to many researchers probably due to their relevance in understanding the Universe. However, the study of non-linear ion-a...Ion-acoustic solitary (IAS) waves in electron-positron-ion (e-p-i) plasma have been of interest to many researchers probably due to their relevance in understanding the Universe. However, the study of non-linear ion-acoustic waves in e-p-i plasma with non-thermal electrons has not been adequately studied. A theoretical investigation on non-linear IAS waves in e-p-i plasma comprising of warm inertial adiabatic fluid ions and electrons that are kappa distributed, and Boltzman distributed positron is presented here using the Sagdeev potential technique. It was found that existence domains of finite amplitude IAS waves were confined within the limits of minimum and maximum Mach numbers with varying k values. For lower values of k, the amplitude of the solitary electrostatic potential structures increased as the width decreased, while for high values, the potential amplitude decreased as the width of the solitary structure increased.展开更多
Structural optimization for crashworthiness criteria is of particular significance especially at early stage of design. The comparative study of Kriging and radial basis function network （RBFN） was performed in orde...Structural optimization for crashworthiness criteria is of particular significance especially at early stage of design. The comparative study of Kriging and radial basis function network （RBFN） was performed in order to improve the crashworthiness effects of honeycomb. Improving the crashworthiness characteristic of honeycomb was achieved using LS-OPT~ and domain reduction strategy. This optimization is performed on the basis of validated numerical simulation to establish the approximated model to illustrate the relationship between the responses and design variables. The results showed that Kriging meta-model is excelled in accuracy, robustness and efficiency compared to radial basis function （RBF） and crashworthiness characteristic of honeycomb is improved by 4%.展开更多
“Let them eat cake”： a retrospective service evaluation of Focus on Undernutrition in care homes. Introduction： Undernutrition is a major cause and consequence of poor health in older people, affecting 35% of res...“Let them eat cake”： a retrospective service evaluation of Focus on Undernutrition in care homes. Introduction： Undernutrition is a major cause and consequence of poor health in older people, affecting 35% of residents in care homes. Focus on Undernutrition （FoU）, a dietetic service delivered by dietetic assistants uses a multifaceted approach to undernutrition management. This study aims to evaluate FoU’s impact on undernutrition outcome measures in care homes; including FoU’s influence on weight change in residents “at risk” of undernutrition, and prevalence of undernutrition and pressure ulcers （PU）. Methods： A retrospective pragmatic service evaluation was undertaken using pseudonymised data collected over 13 years on weight, undernutrition risk and PU from long-stay residents’ notes before and six months after training （FoU）. Results： Analysis completed on 104 homes, 4,315 residents （71.3% female; mean stay 10.8 （1-278） months） in County Durham. Following FoU a significant difference was identified for： improved rate of weight change for “at risk” residents （p 〈 0.001）. Undernutrition risk significantly influenced weight change （low： B1.04 kg, E0.01 kg; moderate： B-1.79 kg, E-0.38 kg; high： B-0.83kg, E1.00 kg, Bp 〈 0.001, Ep = 0.001）. Reduced undernutrition prevalence （p 〈 0.001） from 32.7% to 29.1% residents “at risk” of undernutrition （moderate： B13.1%, E8.9%; high： B19.6%, E15.9%）. Nutrition screening significantly improved （B76.3%, E98.7%, p 〈 0.001）, reduced prevalence PU （51%, p 〈 0.001）. PU prevalence significantly increased with undernutrition severity at baseline （p 〈 0.001）, but not following FoU （p = 0.233） （low： B5%, E2.3%; moderate： B6.9%, E1.6%; high： B10.5%, E3.9%）. Odds of developing PU reduced 53% （OR： 0.47）. B：baseline; E：evaluation; OR： odds ratio. Conclusion： These results demonstrate dietetic assistants delivering FoU significantly improves weight, undernutrition and PU prevalence in care homes. Indicating FoU is an effective model for improving undernutrition outcomes, with the potential of reducing possible harm, such as PU in care homes.展开更多
Jean Baudrillard （1929-2007）, a leading contemporary theorist from the 1970s to the present, was deeply influenced by anthropological thought. As an outcome of his prolonged encounter with anthropology he was able t...Jean Baudrillard （1929-2007）, a leading contemporary theorist from the 1970s to the present, was deeply influenced by anthropological thought. As an outcome of his prolonged encounter with anthropology he was able to devise a unique approach to the world. This approach enabled him to play a leading role in surpassing Marxist thought and in explaining contemporary terrorist attacks such as those of September 11, 2001 in the United States. Baudrillard, who is often correctly seen as making a contribution to contemporary anthropology, is also someone who is deeply indebted to anthropology. This aspect of Baudrillard is less well understood.展开更多
<strong>Background:</strong> Breast milk is recommended as the best feeding option to neonates and infants for it confers immunological benefits that help to reduce neonatal and infant morbidities and mort...<strong>Background:</strong> Breast milk is recommended as the best feeding option to neonates and infants for it confers immunological benefits that help to reduce neonatal and infant morbidities and mortalities. WHO recommends that all infants should start breast feeding within one hour of birth <em>i.e.</em> early initiation of breast feeding (EIBF). Unfortunately, studies show that less than 40% of infants in resource limited settings Uganda inclusive are initiated on breast feeding practice, with no documented study done in Kabarole district to assess the problem. This study therefore, set out to establish the prevalence and associated factors with the practice of first hour initiation of breast feeding at Fort Portal Regional Hospital, Kabarole district, Uganda. <strong>Methods:</strong> With a cross-sectional design, we collected data from 330 post natal mothers and their live-born infants at Fort Portal Regional Referral hospital from 5<sup>th</sup>-20<sup>th</sup> August 2019. With a standard interviewer administered tool, mothers who initiated breast feeding within the first hour after delivery of their newly born babies responded with yes and those that did not with a no. Prevalence of one hour initiation was got considering infants that were initiated on breast within one hour over the total live birth times 100 to get the percent prevalence. With Stata version 13 software, statistically significant relationships of the predisposing factors were determined at a <em>p</em>-value (<em>p</em> ≤ 0.05) at bivariate and at multivariate regression coefficient. <strong>Results:</strong> A total of 330 postnatal mothers targeted for this study, 100% response rate was covered. Mothers’ age ranged from 18 - 45 years with mean age 31 SD ± 6. The prevalence of initiation of breast feeding in the first hour of birth was 68%, a third of (32%) mothers had not initiated breast feeding in the first hour. A half (50%) of the direct predisposing factors for non-initiation of timely breastfeeding were due to birth asphyxia, almost a quarter 23% due to mother’s ill health and 7% due mother not being guided by the health worker on what to do. In this study mothers’ knowledge and awareness of the practice were very low at 20% while that of health workers was fair at 53%. Social demographic factors that influence 1<sup>st</sup> hour breast feeding practice were;young maternal age being less than 34 years, mothers occupation being self-employed (83%) or unemployed (73%) with 3 times higher odds of initiating breastfeeding within 1<sup>st</sup> (OR = 3, <em>p</em> = 0.003) than working class mothers (civil servants). Marital status of mothers being married (73%) significantly influenced early breastfeeding practice (<em>p</em> = 0.001). Health workers’ knowledge of the practice was significantly associated (OR = 2.7, <em>X</em><sup>2</sup> = 11.32, *<em>p</em> = 0.00078) with enforcement of mother initiation of breast feeding in first hour compared to the less knowledgeable ones. <strong>Conclusion:</strong> The practice of timely initiation of breastfeeding at Fort Portal Regional Referral hospital at 68.2% was sub-optimal against WHO universal practice recommendations. Mothers’ low knowledge on timely initiation of breast feeding practice was the most deterrent factor for first hour initiation of breastfeeding practice. Providing breastfeeding counselling to all mothers during ANC and training on best breastfeeding practices and counselling skills for health staff at Fort Portal Referral hospital are urgent recommendation in this study to improve the practice.展开更多
Ayurveda is a renowned traditional medicine practiced in India from ancient times and Clitoria ternatea is one such prospective medicinal herb incorporated as an essential constituent in a brain tonic called as medhya...Ayurveda is a renowned traditional medicine practiced in India from ancient times and Clitoria ternatea is one such prospective medicinal herb incorporated as an essential constituent in a brain tonic called as medhya rasayan for treating neurological disorders.This work emphasises the significance of the plant as a brain drug there by upholding Indian medicine.The phytochemicals from the root extract were extricated using gas chromatography–mass spectrometry assay and molecular docking against the protein Monoamine oxidase was performed with four potential compounds along with four reference compounds of the plant.This persuades the prospect of C.ternatea as a remedy for neurodegenerative diseases and depression.The in silico assay enumerates that a major compound(Z)-9,17-octadecadienal obtained from the chromatogram with a elevated retention time of 32.99 furnished a minimum binding affinity energy value of-6.5 kcal/mol against monoamine oxidase(MAO-A).The interactions with the amino acid residues ALA 68,TYR 60 and TYR 69 were analogous to the reference compound kaempferol-3-monoglucoside with a least score of-13.90/-12.95 kcal/mol against the isoforms(MAO)A and B.This study fortifies the phytocompounds of C.ternatea as MAO-inhibitors and to acquire a pharmaceutical approach in rejuvenating Ayurvedic medicine.展开更多
<strong>Background:</strong> Boda-Boda is a well-known and booming motorcycle taxi that employs youths to earn a living. They transport passengers at a faster rate where other means of transport are inacce...<strong>Background:</strong> Boda-Boda is a well-known and booming motorcycle taxi that employs youths to earn a living. They transport passengers at a faster rate where other means of transport are inaccessible or would be time consuming. Global statistics show that HIV has continued to be a major global Public Health issue especially among the “Most At-risk Populations” (MAPs) that include commercial transporters and Boda-Boda riders. <strong>Aim:</strong> This study aimed at assessing the prevalence and predisposing factors for HIV/AIDS among Boda-Boda riders living in Mbarara Municipality. Specifically, the study determined the prevalence of HIV among the Boda-Boda riders, identified social demographic predisposing factors for HIV and determined knowledge of Boda riders on prevention of HIV. <strong>Study setting:</strong> Boda-Boda operators in the transport sector are at high risk of HIV infection but the HIV status of the Boda Riders in Mbarara was not known a reason why the study was instituted: <strong>Study design:</strong> This was an analytical and descriptive cross-sectional study that employed quantitative methods of data collection. The study population comprised the registered Boda-Boda operators from two divisions of Kakoba and Kakiika in Mbarara municipality. <strong>Sample size and sampling methods:</strong> Using Morgan’s table (1970), the population of the registered Boda Riders was 15,041;this corresponded to a sample size of 375 respondents by Morgan Table. Systematic sampling procedure was used to get every 3rd registered rider on the list. <strong>Data collection:</strong> A pre-tested structured tool aided data collection after group pretest counseling. Individual counseling was also done prior to testing and giving results. The laboratory technologists drew blood to determine the sero-status of the respondents. Results were recorded as tested reactive (TRR) or tested non-reactive (TR). Unigold was used as tie breaker to confirm their diagnosis in order to ascertain those who were HIV positive on determine. <strong>Data analysis:</strong> Analysis was done at univariate, bivariate and multivariate using STATA version 13, Statistical significance of the relationship was determined for the p-value (p ≤ 0.05). Significant variables were then considered at multivariate level of analysis. <strong>Results:</strong> More than half 195 (52%) of the Boda-Boda cyclist had attained primary level of education and 36.5% secondary education. HIV prevalence among Boda-Boda riders was 9.9%. Riders who had never heard of VCT/HCT screening for HIV were three times likely to acquire HIV compared to those who ever heard of VCT/HCT screening (OR = 3.35;95% CI 1.14 9.83;p = 0.027). Those with multiple partners were six times more likely to acquire HIV/AIDS compared to those who buy sex from prostitutes (OR = 6.13;95% CI 1.54 24.38;p = 0.01). The level of awareness of VCT was found high at (94.7%), and the general knowledge about utilization and importance of VCT services was at 80%, however condom use as a preventive measure was found low at 44.3% among the respondent Boda-Boda riders. <strong>Conclusion:</strong> Boda-Boda riders had high HIV prevalence of 9.9% compared to that of Mbarara district at 6.1% and much higher than 5.7% national HIV prevalence level. The predisposing factors to acquire HIV/AIDS were having multiple sexual partners, not having heard of HIV counseling and testing as well as low and inconsistent condom use at 44.3%. The study recommends health service providers and HIV counselors to intensify awareness and behavior change campaigns on condom use among the Boda-Boda riders as preventive measure against HIV.展开更多
随着现代信息技术的发展,各种网络平台快速普及,大众已经习惯于通过如微博、微信等网络媒体表达他们的观点和意见,且用户发表的多为短文本,其中包含大量有价值的信息。因此,网络短文本成为自然语言处理(Natural Language Processing,NLP...随着现代信息技术的发展,各种网络平台快速普及,大众已经习惯于通过如微博、微信等网络媒体表达他们的观点和意见,且用户发表的多为短文本,其中包含大量有价值的信息。因此,网络短文本成为自然语言处理(Natural Language Processing,NLP)领域的研究热门。本文以短文本为研究对象,对短文本进行语义极性分析,利用计算机自动分析包含观点信息的句子,抽取主题词、特征词,利用主谓极性传递算法提取句子中的观点。展开更多
In this paper, we propose a new algorithm to compute the homology of a finitely generated chain complex. Our method is based on grouping several reductions into structures that can be encoded as directed acyclic graph...In this paper, we propose a new algorithm to compute the homology of a finitely generated chain complex. Our method is based on grouping several reductions into structures that can be encoded as directed acyclic graphs. The organized reduction pairs lead to sequences of projection maps that reduce the number of generators while preserving the homology groups of the original chain complex. This sequencing of reduction pairs allows updating the boundary information in a single step for a whole set of reductions, which shows impressive gains in computational performance compared to existing methods. In addition, our method gives the homology generators for a small additional cost.展开更多
Aluminum Nitride films were grown on and Si (100) substrate by D.C. reactive magnetron sputtering at room temperature. Influence of sputter deposition time on properties of the AlN films was studied. Structural optica...Aluminum Nitride films were grown on and Si (100) substrate by D.C. reactive magnetron sputtering at room temperature. Influence of sputter deposition time on properties of the AlN films was studied. Structural optical and electrical properties of the film were investigated. XRD measurements showed the presence of hexagonal wurtzite structure. The optical reflectance spectra of the film were taken and the band gap calculated varied from 4.35 to 5.3 eV. Finally MIS capacitors were fabricated on silicon substrates and variation of dielectric parameter with deposition time was reported.展开更多
Uganda has significantly continued to receive a large number of refugees in the region and this is positively correlated with its proportional increase in peace and stability. The presence of favorable climatic condit...Uganda has significantly continued to receive a large number of refugees in the region and this is positively correlated with its proportional increase in peace and stability. The presence of favorable climatic conditions enhances agricultural productivity and this has triggered redirecting refugees into agricultural production as the major source of livelihood. However, in Ugandan setting, it has not yet been clearly established how agriculture has practically enhanced the livelihoods of the refugees. The study therefore aimed at identifying the agricultural activities practiced by refugees living in Nakivale refugee settlement, identifying the challenges faced by refugees involved in agriculture and their possible solutions as well as examining the contribution of agriculture towards livelihoods of refugees in Nakivale Refugee settlement. The study utilized a case-study approach to analyze the contribution of agriculture in the enhancement of livelihoods in the context of a single settlement and a sample size of 80 respondents was chosen using simple random sampling and an interview guide was used to collect primary data from the respondents. It was revealed from the study that crop production is the main agricultural activity practiced by refugees living in Nakivale refugee settlement in a bid to improve on their food security and household incomes. The study further revealed that climate change, diseases/parasites and diseases, limited land and low prices for the produce are the most serious challenges facing refugees’ farmers. It is concluded that food security in Nakivale refugee settlement is rather influenced by agricultural production and the associated dynamics that ultimately determine the well-being of the refugee communities. It is important to appreciate that any variation in factors of production, weather and produce prices will determine livelihood status of the community for such a specific period of time. It’s recommended that farmers should adopt climate smart farming to mitigate effects of climate change, supporting farmers with agricultural credit and other agricultural inputs like fertilizers, pesticides, farming tools, land, farmers training, improved seeds which are high yielding and quick maturing, market linkages for improved productivity and production.展开更多
文摘Aim: To establish the prevalence and risk factors for hypertension, diabetes and obesity among teaching and non-teaching staff of Bishop Stuart University, Mbarara-Uganda. Background: None communicable diseases (NCDs) are projected to exceed communicable diseases as the most common causes of death by 2030 in Africa. Most sub-Saharan African countries however lack detailed countrywide data on hypertension and other NCDs risk factors. Cognizant of Uganda’s recent inclusion of Hypertension and diabetes in the health policy agenda, this study was conducted among the university staff in a rural setting to provide benchmark information for design of appropriate interventions. Study Design: This was a descriptive cross-sectional, institutional based survey design. Place and duration of the study: This study was conducted among the teaching and none teaching staff of Bishop Stuart University Mbarara, Uganda from 18th April-6th June 2017. Methodology: A structured questionnaire was used to gather social demographic and risk factors data from the university workers at their work stations. Blood pressure of each participant was measured and Hypertension was defined as systolic BP > 140 and/or diastolic (BP) > 90 mmHg. Anthropometric measurements: Body Mass index (BMI) was done by weight in (Kg) and Height in (M2) to establish weight levels. Obesity was considered at BMI > 40. A random Blood Sugar (RBS) > 200 mg/dl was considered as diabetic. Epi-info version 7 was used to enter data, analyzed using SPSS version 19. Results: A total of 156 University staff aged 25 - 75 years of both sexes, mean age 42 ± 8 were interviewed of whom 51% were males. About 15% were administrative staff, 55% teaching staff, 3% senior lecturers and professors and 25% non-teaching staff. The prevalences of Hypertension, Diabetes, and obesity were 7.7%, 16%, and 28% respectively. But also majority (60.2%) were found at risk of developing both hypertension and diabetes. Less than 20% of the participants were knowledgeable on causes, signs and symptoms and preventive measures for Hypertension but had moderate knowledgeable of the risk factors, the most frequently mentioned risk by 71% was lack of exercise. Despite the awareness of risk factors, majority (61.3%) had not done any form of exercise and 64.1% had not had regular Blood pressure check ups. The study also demonstrated a statistically significant relationship between those aged more than 40 years and having hypertension (X2 = 5.82, P = 0.015, OR = 4.2). Likewise the risk of Diabetes increased with increasing age. Lecturers aged 40 years and above were 5.6 times likely to have diabetes compared to those aged less than 40 years (OR = 5.6, X2 = 16 , P = 0.0005). A significant number of respondents 57/156 (36.5%) reported history of HPT among their family members. Prevalence of obesity and overweight was observed higher in senior administrative staff and lecturers than in lower cadre staff 49% and 34% (p 0.01). Conclusion: Hypertension, Diabetes and obesity are conditions prevalent among the teaching and none teaching staff of BSU, but knowledge on risk factors, clinical presentation and preventive strategies is limited. Routine physical exercises...
文摘E-learning involves programs that use the internet to allow instructional material beyond classroom walls for interaction between educators and the learners.It is powerful tool in education if the right pedagogy is used.The purpose of the study was to interrogate types of e-learning modes,impact,success and challenges of e-learning at Bishop Hannington Institute of Theology and Development,Mombasa.The study adopted desk top research by observation of students and educators use of e-learning at BHI(Mombasa)and analyzed documents,books,journals on the patterns of e-learning in relation to BHI.The study reviewed the synchronous and asynchronous types of e-learning modes.Additionally,the study evaluated advantages and disadvantages of e-learning at BHI.The study aim was to give information to other universities,middle level colleges and secondary schools on the place of e-learning in modern education patterns and how best it can be improved.The study created awareness to the educators,students and the general public the need for e-learning.
基金Funding The authors acknowledge the National Institute for Occupational Safety and Health(NIOSH)for funding this research project.
文摘Fibrous-type flters are used to capture dust particles in mining and other occupations where personnel are exposed for prolonged periods.Dust cleansing devices including fooded-bed dust scrubbers use these mesh-type multi-layered flters.These flters trap dust particles efciently on their surface and inside their mesh.However,their continued operation leads to dust build-up and clogging.This results in increased resistance of the flter and lowered airfow rate through the scrubber.This could potentially enhance the exposure of the miners.A non-clogging self-cleaning impingement screen type dust flter was designed by the authors for use in mining and industrial dust cleansing applications.The flter guides dirt-laden air through rapidly turning paths which forces it to shed heavier particles.The particles impact one of the impermeable solid metallic flter surfaces and are removed from the airstream.A full cone water spray installed upstream prevents any surface buildup of dust.This paper summaried the computer models generated to show the flter operations and laboratory experiments including optical particle counting to establish the cleaning efciency.
基金Sunway University for supporting this research work under Sunway University Internal Grant Scheme 2022 (grant no. GRTIN-IGS(02)-GAMRG-03-2022)。
文摘Supercapacitors are promising energy storage devices in current century due to their high specific capacitance, cyclic stability, high power density, and high voltage rating. Due to their excellent electrochemical properties, supercapacitors are invariably used in a multitude of applications ranging from portable electronics to electric vehicles. The electrochemical performance of a supercapacitor mainly depends on the type of electrode-active material used in it. Thereby a careful selection is mandatory to achieve the excellency. Nanostructured electrode-active materials such as carbon nanomaterials, transition metal oxides,transition metal dichalcogenides(TMDs), electronically conducting polymers, etc. are invariably used for supercapacitor application. Among these, TMDs have received great interest, particularly transition metal disulfides such as molybdenum disulfide, tin disulfide(SnS_(2)), etc. Tin is abundant on the earth with excellent charge storage capabilities, attracted great scientific interest for application as electrode materials in supercapacitors. Good electronic conductivity, long cycling life and low-cost are its added advantages.Herein, we discuss the recent trends in layered two-dimensional(2D) SnS_(2)-based electrodes to develop low-cost supercapacitors. Initially, their crystal structure, basic properties, synthesis methods are discussed. Further, strategically designing electrode nanostructures to achieve excellent electrochemical performance is reviewed then after. This includes material design in terms of morphology, pore-size,and shape as well as preparation of 2D SnS_(2)-based nanocomposite electrodes. Furthermore, the challenges and future perspectives of 2D SnS_(2)-based supercapacitors are included.
文摘Ion-acoustic solitary (IAS) waves in electron-positron-ion (e-p-i) plasma have been of interest to many researchers probably due to their relevance in understanding the Universe. However, the study of non-linear ion-acoustic waves in e-p-i plasma with non-thermal electrons has not been adequately studied. A theoretical investigation on non-linear IAS waves in e-p-i plasma comprising of warm inertial adiabatic fluid ions and electrons that are kappa distributed, and Boltzman distributed positron is presented here using the Sagdeev potential technique. It was found that existence domains of finite amplitude IAS waves were confined within the limits of minimum and maximum Mach numbers with varying k values. For lower values of k, the amplitude of the solitary electrostatic potential structures increased as the width decreased, while for high values, the potential amplitude decreased as the width of the solitary structure increased.
文摘Structural optimization for crashworthiness criteria is of particular significance especially at early stage of design. The comparative study of Kriging and radial basis function network （RBFN） was performed in order to improve the crashworthiness effects of honeycomb. Improving the crashworthiness characteristic of honeycomb was achieved using LS-OPT~ and domain reduction strategy. This optimization is performed on the basis of validated numerical simulation to establish the approximated model to illustrate the relationship between the responses and design variables. The results showed that Kriging meta-model is excelled in accuracy, robustness and efficiency compared to radial basis function （RBF） and crashworthiness characteristic of honeycomb is improved by 4%.
文摘“Let them eat cake”： a retrospective service evaluation of Focus on Undernutrition in care homes. Introduction： Undernutrition is a major cause and consequence of poor health in older people, affecting 35% of residents in care homes. Focus on Undernutrition （FoU）, a dietetic service delivered by dietetic assistants uses a multifaceted approach to undernutrition management. This study aims to evaluate FoU’s impact on undernutrition outcome measures in care homes; including FoU’s influence on weight change in residents “at risk” of undernutrition, and prevalence of undernutrition and pressure ulcers （PU）. Methods： A retrospective pragmatic service evaluation was undertaken using pseudonymised data collected over 13 years on weight, undernutrition risk and PU from long-stay residents’ notes before and six months after training （FoU）. Results： Analysis completed on 104 homes, 4,315 residents （71.3% female; mean stay 10.8 （1-278） months） in County Durham. Following FoU a significant difference was identified for： improved rate of weight change for “at risk” residents （p 〈 0.001）. Undernutrition risk significantly influenced weight change （low： B1.04 kg, E0.01 kg; moderate： B-1.79 kg, E-0.38 kg; high： B-0.83kg, E1.00 kg, Bp 〈 0.001, Ep = 0.001）. Reduced undernutrition prevalence （p 〈 0.001） from 32.7% to 29.1% residents “at risk” of undernutrition （moderate： B13.1%, E8.9%; high： B19.6%, E15.9%）. Nutrition screening significantly improved （B76.3%, E98.7%, p 〈 0.001）, reduced prevalence PU （51%, p 〈 0.001）. PU prevalence significantly increased with undernutrition severity at baseline （p 〈 0.001）, but not following FoU （p = 0.233） （low： B5%, E2.3%; moderate： B6.9%, E1.6%; high： B10.5%, E3.9%）. Odds of developing PU reduced 53% （OR： 0.47）. B：baseline; E：evaluation; OR： odds ratio. Conclusion： These results demonstrate dietetic assistants delivering FoU significantly improves weight, undernutrition and PU prevalence in care homes. Indicating FoU is an effective model for improving undernutrition outcomes, with the potential of reducing possible harm, such as PU in care homes.
文摘Jean Baudrillard （1929-2007）, a leading contemporary theorist from the 1970s to the present, was deeply influenced by anthropological thought. As an outcome of his prolonged encounter with anthropology he was able to devise a unique approach to the world. This approach enabled him to play a leading role in surpassing Marxist thought and in explaining contemporary terrorist attacks such as those of September 11, 2001 in the United States. Baudrillard, who is often correctly seen as making a contribution to contemporary anthropology, is also someone who is deeply indebted to anthropology. This aspect of Baudrillard is less well understood.
文摘<strong>Background:</strong> Breast milk is recommended as the best feeding option to neonates and infants for it confers immunological benefits that help to reduce neonatal and infant morbidities and mortalities. WHO recommends that all infants should start breast feeding within one hour of birth <em>i.e.</em> early initiation of breast feeding (EIBF). Unfortunately, studies show that less than 40% of infants in resource limited settings Uganda inclusive are initiated on breast feeding practice, with no documented study done in Kabarole district to assess the problem. This study therefore, set out to establish the prevalence and associated factors with the practice of first hour initiation of breast feeding at Fort Portal Regional Hospital, Kabarole district, Uganda. <strong>Methods:</strong> With a cross-sectional design, we collected data from 330 post natal mothers and their live-born infants at Fort Portal Regional Referral hospital from 5<sup>th</sup>-20<sup>th</sup> August 2019. With a standard interviewer administered tool, mothers who initiated breast feeding within the first hour after delivery of their newly born babies responded with yes and those that did not with a no. Prevalence of one hour initiation was got considering infants that were initiated on breast within one hour over the total live birth times 100 to get the percent prevalence. With Stata version 13 software, statistically significant relationships of the predisposing factors were determined at a <em>p</em>-value (<em>p</em> ≤ 0.05) at bivariate and at multivariate regression coefficient. <strong>Results:</strong> A total of 330 postnatal mothers targeted for this study, 100% response rate was covered. Mothers’ age ranged from 18 - 45 years with mean age 31 SD ± 6. The prevalence of initiation of breast feeding in the first hour of birth was 68%, a third of (32%) mothers had not initiated breast feeding in the first hour. A half (50%) of the direct predisposing factors for non-initiation of timely breastfeeding were due to birth asphyxia, almost a quarter 23% due to mother’s ill health and 7% due mother not being guided by the health worker on what to do. In this study mothers’ knowledge and awareness of the practice were very low at 20% while that of health workers was fair at 53%. Social demographic factors that influence 1<sup>st</sup> hour breast feeding practice were;young maternal age being less than 34 years, mothers occupation being self-employed (83%) or unemployed (73%) with 3 times higher odds of initiating breastfeeding within 1<sup>st</sup> (OR = 3, <em>p</em> = 0.003) than working class mothers (civil servants). Marital status of mothers being married (73%) significantly influenced early breastfeeding practice (<em>p</em> = 0.001). Health workers’ knowledge of the practice was significantly associated (OR = 2.7, <em>X</em><sup>2</sup> = 11.32, *<em>p</em> = 0.00078) with enforcement of mother initiation of breast feeding in first hour compared to the less knowledgeable ones. <strong>Conclusion:</strong> The practice of timely initiation of breastfeeding at Fort Portal Regional Referral hospital at 68.2% was sub-optimal against WHO universal practice recommendations. Mothers’ low knowledge on timely initiation of breast feeding practice was the most deterrent factor for first hour initiation of breastfeeding practice. Providing breastfeeding counselling to all mothers during ANC and training on best breastfeeding practices and counselling skills for health staff at Fort Portal Referral hospital are urgent recommendation in this study to improve the practice.
文摘Ayurveda is a renowned traditional medicine practiced in India from ancient times and Clitoria ternatea is one such prospective medicinal herb incorporated as an essential constituent in a brain tonic called as medhya rasayan for treating neurological disorders.This work emphasises the significance of the plant as a brain drug there by upholding Indian medicine.The phytochemicals from the root extract were extricated using gas chromatography–mass spectrometry assay and molecular docking against the protein Monoamine oxidase was performed with four potential compounds along with four reference compounds of the plant.This persuades the prospect of C.ternatea as a remedy for neurodegenerative diseases and depression.The in silico assay enumerates that a major compound(Z)-9,17-octadecadienal obtained from the chromatogram with a elevated retention time of 32.99 furnished a minimum binding affinity energy value of-6.5 kcal/mol against monoamine oxidase(MAO-A).The interactions with the amino acid residues ALA 68,TYR 60 and TYR 69 were analogous to the reference compound kaempferol-3-monoglucoside with a least score of-13.90/-12.95 kcal/mol against the isoforms(MAO)A and B.This study fortifies the phytocompounds of C.ternatea as MAO-inhibitors and to acquire a pharmaceutical approach in rejuvenating Ayurvedic medicine.
文摘<strong>Background:</strong> Boda-Boda is a well-known and booming motorcycle taxi that employs youths to earn a living. They transport passengers at a faster rate where other means of transport are inaccessible or would be time consuming. Global statistics show that HIV has continued to be a major global Public Health issue especially among the “Most At-risk Populations” (MAPs) that include commercial transporters and Boda-Boda riders. <strong>Aim:</strong> This study aimed at assessing the prevalence and predisposing factors for HIV/AIDS among Boda-Boda riders living in Mbarara Municipality. Specifically, the study determined the prevalence of HIV among the Boda-Boda riders, identified social demographic predisposing factors for HIV and determined knowledge of Boda riders on prevention of HIV. <strong>Study setting:</strong> Boda-Boda operators in the transport sector are at high risk of HIV infection but the HIV status of the Boda Riders in Mbarara was not known a reason why the study was instituted: <strong>Study design:</strong> This was an analytical and descriptive cross-sectional study that employed quantitative methods of data collection. The study population comprised the registered Boda-Boda operators from two divisions of Kakoba and Kakiika in Mbarara municipality. <strong>Sample size and sampling methods:</strong> Using Morgan’s table (1970), the population of the registered Boda Riders was 15,041;this corresponded to a sample size of 375 respondents by Morgan Table. Systematic sampling procedure was used to get every 3rd registered rider on the list. <strong>Data collection:</strong> A pre-tested structured tool aided data collection after group pretest counseling. Individual counseling was also done prior to testing and giving results. The laboratory technologists drew blood to determine the sero-status of the respondents. Results were recorded as tested reactive (TRR) or tested non-reactive (TR). Unigold was used as tie breaker to confirm their diagnosis in order to ascertain those who were HIV positive on determine. <strong>Data analysis:</strong> Analysis was done at univariate, bivariate and multivariate using STATA version 13, Statistical significance of the relationship was determined for the p-value (p ≤ 0.05). Significant variables were then considered at multivariate level of analysis. <strong>Results:</strong> More than half 195 (52%) of the Boda-Boda cyclist had attained primary level of education and 36.5% secondary education. HIV prevalence among Boda-Boda riders was 9.9%. Riders who had never heard of VCT/HCT screening for HIV were three times likely to acquire HIV compared to those who ever heard of VCT/HCT screening (OR = 3.35;95% CI 1.14 9.83;p = 0.027). Those with multiple partners were six times more likely to acquire HIV/AIDS compared to those who buy sex from prostitutes (OR = 6.13;95% CI 1.54 24.38;p = 0.01). The level of awareness of VCT was found high at (94.7%), and the general knowledge about utilization and importance of VCT services was at 80%, however condom use as a preventive measure was found low at 44.3% among the respondent Boda-Boda riders. <strong>Conclusion:</strong> Boda-Boda riders had high HIV prevalence of 9.9% compared to that of Mbarara district at 6.1% and much higher than 5.7% national HIV prevalence level. The predisposing factors to acquire HIV/AIDS were having multiple sexual partners, not having heard of HIV counseling and testing as well as low and inconsistent condom use at 44.3%. The study recommends health service providers and HIV counselors to intensify awareness and behavior change campaigns on condom use among the Boda-Boda riders as preventive measure against HIV.
文摘随着现代信息技术的发展,各种网络平台快速普及,大众已经习惯于通过如微博、微信等网络媒体表达他们的观点和意见,且用户发表的多为短文本,其中包含大量有价值的信息。因此,网络短文本成为自然语言处理(Natural Language Processing,NLP)领域的研究热门。本文以短文本为研究对象,对短文本进行语义极性分析,利用计算机自动分析包含观点信息的句子,抽取主题词、特征词,利用主谓极性传递算法提取句子中的观点。
文摘In this paper, we propose a new algorithm to compute the homology of a finitely generated chain complex. Our method is based on grouping several reductions into structures that can be encoded as directed acyclic graphs. The organized reduction pairs lead to sequences of projection maps that reduce the number of generators while preserving the homology groups of the original chain complex. This sequencing of reduction pairs allows updating the boundary information in a single step for a whole set of reductions, which shows impressive gains in computational performance compared to existing methods. In addition, our method gives the homology generators for a small additional cost.
文摘Aluminum Nitride films were grown on and Si (100) substrate by D.C. reactive magnetron sputtering at room temperature. Influence of sputter deposition time on properties of the AlN films was studied. Structural optical and electrical properties of the film were investigated. XRD measurements showed the presence of hexagonal wurtzite structure. The optical reflectance spectra of the film were taken and the band gap calculated varied from 4.35 to 5.3 eV. Finally MIS capacitors were fabricated on silicon substrates and variation of dielectric parameter with deposition time was reported.
文摘Uganda has significantly continued to receive a large number of refugees in the region and this is positively correlated with its proportional increase in peace and stability. The presence of favorable climatic conditions enhances agricultural productivity and this has triggered redirecting refugees into agricultural production as the major source of livelihood. However, in Ugandan setting, it has not yet been clearly established how agriculture has practically enhanced the livelihoods of the refugees. The study therefore aimed at identifying the agricultural activities practiced by refugees living in Nakivale refugee settlement, identifying the challenges faced by refugees involved in agriculture and their possible solutions as well as examining the contribution of agriculture towards livelihoods of refugees in Nakivale Refugee settlement. The study utilized a case-study approach to analyze the contribution of agriculture in the enhancement of livelihoods in the context of a single settlement and a sample size of 80 respondents was chosen using simple random sampling and an interview guide was used to collect primary data from the respondents. It was revealed from the study that crop production is the main agricultural activity practiced by refugees living in Nakivale refugee settlement in a bid to improve on their food security and household incomes. The study further revealed that climate change, diseases/parasites and diseases, limited land and low prices for the produce are the most serious challenges facing refugees’ farmers. It is concluded that food security in Nakivale refugee settlement is rather influenced by agricultural production and the associated dynamics that ultimately determine the well-being of the refugee communities. It is important to appreciate that any variation in factors of production, weather and produce prices will determine livelihood status of the community for such a specific period of time. It’s recommended that farmers should adopt climate smart farming to mitigate effects of climate change, supporting farmers with agricultural credit and other agricultural inputs like fertilizers, pesticides, farming tools, land, farmers training, improved seeds which are high yielding and quick maturing, market linkages for improved productivity and production.
