oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 163 )

2018 ( 825 )

2017 ( 751 )

2016 ( 1113 )

Custom range...

Search Results: 1 - 10 of 462126 matches for " Obed Ernest A. Nettey "
All listed articles are free for downloading (OA Articles)
Page 1 /462126
Display every page Item
Clustering of childhood mortality in the Kintampo Health and Demographic Surveillance System in Ghana
Obed Ernest A. Nettey,Charles Zandoh,Abubakari Sulemana,Robert Adda
Global Health Action , 2010, DOI: 10.3402/gha.v3i0.5258
Abstract: Background: Childhood mortality in Ghana has generally declined in the last four decades. However, estimates tend to conceal substantial variability among regions and districts. The lack of population-based data in Ghana, as in other less developed countries, has hindered the development of effective programmes targeted specifically at clusters where mortality levels are significantly higher. Objective: This paper seeks to test for the existence of statistically significant clusters of childhood mortality within the Kintampo Health and Demographic Surveillance System (KHDSS) between 2005 and 2007. Design: In this study, mortality rates were generated using mortality data extracted from the health and demographic surveillance database of the KHDSS and exported into STATA. The spatial and spatio-temporal scan statistic by Kulldorff was used to identify significant clusters of childhood mortality within the KHDSS. Results: A significant cluster of villages with high under-five mortality in the south-eastern part of the KHDSS in 2006 was identified. This is a remote location where poverty levels are relatively higher, health facilities are more sparse and these are compounded by poor transport services in case of emergencies. Conclusion: This study highlights the potential of the surveillance platform to demonstrate the spatial dimensions of childhood mortality clustering. It is apparent, though, that further studies need to be carried out in order to explore the underlying risk factors for potential mortality clusters that could emerge later.
Demographic patterns and trends in Central Ghana: baseline indicators from the Kintampo Health and Demographic Surveillance System
Seth Owusu-Agyei,Obed Ernest A. Nettey,Charles Zandoh,Abubakari Sulemana
Global Health Action , 2012, DOI: 10.3402/gha.v5i0.19033
Abstract: Background: The dearth of health and demographic data in sub-Saharan Africa from vital registration systems and its impact on effective planning for health and socio-economic development is widely documented. Health and Demographic Surveillance Systems have the capacity to address the dearth of quality data for policy making in resource-poor settings. Objective: This article demonstrates the utility of the Kintampo Health and Demographic Surveillance System (KHDSS) by showing the patterns and trends of population change from 2005 to 2009 in the Kintampo North Municipality and Kintampo South districts of Ghana through data obtained from the KHDSS biannual update rounds. Design: Basic demographic rates for fertility, mortality, and migration were computed by year. School enrolment was computed as a percentage in school by age and sex for 6–18 year-olds. Socio-economic status was derived by use of Principal Components Analysis on household assets. Results: Over the period, an earlier fertility decline was reversed in 2009; mortality declined slightly for all age-groups, and a significant share of working-age population was lost through out-migration. Large minorities of children of school-going age are not in school. Socio-economic factors are shown to be important determinants of fertility and mortality. Conclusion : Strengthening the capacity of HDSSs could offer added value to evidence-driven policymaking at local level.
Adolescents’ Willingness and Intentions to Use Contraceptives in Rural Ghana  [PDF]
Sulemana Abubakari, Yeetey A. Enuameh, Emmanuel Mahama, Obed Ernest A. Nettey, George Adjei, Gifty Fosuaa Nuamah, Edward Apraku Anane, Robert Adda, Francis Dzabeng, Seeba Amenga-Etego, Charles Zandoh, Kwaku Poku Asante, Seth Owusu-Agyei
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.311029
Abstract: Efforts made to improve the availability and access to family planning services to adolescents in Ghana have not yielded the desired results. Adolescents in the Kintampo Health and Demographic Surveillance System area are no exception. This study explored contraceptive use intentions, preferences and their determinants among adolescents in rural Ghana. This was to contribute evidence towards achieving universal access to reproductive health. A cross-sectional study design was used to collect Sexual and Reproductive Health data in the Kintampo districts in 2011. A total of 1805 female adolescents were randomly sampled from a resident female adolescent population of 16,795. This study used intention and/or willingness of adolescents to use contraceptives as the outcome variable and the explanatory variables were demographic and socioeconomic factors. Descriptive and inferential statistical analyses were done. The findings indicated 54.3% of adolescents’ were willing to use contraceptives. Injectable was the most preferred contraceptive method among adolescents (48.6%); this was followed by the pill (29.6%) with the least being foam or jelly (0.2%). The most commonly cited reason for not intending to use contraception was adolescents’ opposition to family planning (31.5%) followed by a fear of side effects (25.8%). Age and education influenced adolescents’ willingness to use contraceptives in the future. Formal education of the young generation coupled with knowledge of contraceptive methods could yield positive outcomes for contraceptive use and ultimately reproductive health of the adolescent population in the near future.
Making Family Planning Services Relevant to Adolescents: Perspectives from Rural Communities in Central Ghana  [PDF]
Yeetey Enuameh, Charlotte Tawiah, Samuel Afari-Asiedu, Obed Ernest A. Nettey, Abubakari Sulemana, Emmanuel Mahama, George Adjei, Ellen Boamah, Alex Manu, Stephanie Gyaase, Charles Zandoh, Nelson Amanfo, Kwaku Poku Asante, Timothy Letsa, Seth Owusu-Agyei
Open Journal of Preventive Medicine (OJPM) , 2014, DOI: 10.4236/ojpm.2014.411096
Abstract: In lower middle-income countries like Ghana, it is common to find low contraceptive use among adolescents with corresponding high pregnancy outcomes. Evidence points to the fact that the use of contraceptives prevents maternal, neonatal and infant deaths, but in most lower middle-income countries, socio-cultural practices inhibit adolescents’ use. Ensuring the uptake of family planning among adolescents is deemed a necessary means of reducing maternal, neonatal and infant mor-tality. This manuscript seeks to provide contextually relevant approaches to satisfying family planning needs of adolescents in a population lacking it. We employed a qualitative study design from an interpretive paradigm with phenomenology as the methodology to understand societal attitudes towards family planning delivery to adolescents, so as to arrive at contextually appro-priate ways of providing family planning to this needy group. Focused group discussions and in-depth interviews techniques were used in data collection among adolescents, relevant commu-nity opinion leaders and family planning & health services providers. Themes that emerged from data analysis with respect to “perspectives on family planning care delivery to adolescents” and “best ways in addressing adolescents’ family planning needs” are presented, followed by discussion of the issues emerging. A significant and encouraging finding of the study was that opinion leaders and healthcare providers viewed family planning as a means of protecting adolescents against pregnancies and their complications. A key recommendation is for policy makers and political leaders to enact legislations that enable adolescents to have friendly family planning service delivery in all places and at all times.
Knowledge, Attitudes and Preventive Practices on Ebola Virus Disease in the Kintampo Districts of Ghana  [PDF]
Obed Ernest A. Nettey, Yeetey A. Enuameh, Charles Zandoh, Edward Apraku Anane, Mahama Abukari, Francis Agbokey, Awurabena Q. Dadzie, Mathilda Tivura, Dennis Adu-Gyasi, Lawrence Gyabaa Febir, Kenneth A. Ae-Ngibise, Timothy Letsa, Kwaku Poku Asante, Seth Owusu-Agyei
Health (Health) , 2016, DOI: 10.4236/health.2016.814146
Abstract: This study describes community members’ knowledge of Ebola Virus Disease (EVD), their attitudes and preventive practices. A mixed methods approach was used. A random sample of 1028 community members aged 15 - 65 years was interviewed in a quantitative survey. This was complemented with a qualitative study involving 24 opinion leaders who were carefully selected. The study was conducted in Kintampo North and South districts of Ghana from August 2014 to October 2014. 83% of respondents had heard of EVD, but 62.5% did not know the duration between the time of infection and onset of clinical symptoms. The most popular symptom mentioned spontaneously was bleeding through body orifices (48.6%). Majority of respondents mentioned handshake or skin contact as a mode of transmission (57.3%) and reduced contact with bats as a means to prevent the spread of EVD (58.1%). Knowledge of transmission of body fluids such as faeces, blood or urine was low (<10%), though this varied significantly by socio-demographic group. Majority (94%) of respondents acknowledged that EVD was a serious disease, however, only 58% saw themselves at risk. Current preventive behaviours included: improved hand hygiene (83%) and avoidance of handshakes and physical contact with people (81%). Community members in the Kintampo districts have high level of awareness of EVD, but important gaps in knowledge of EVD still exist, especially concerning body fluids as a mode of transmission. There is the need to intensify educational messages as part of Ghana’s preparedness towards a potential EVD outbreak.
Family Planning Awareness, Perceptions and Practice among Community Members in the Kintampo Districts of Ghana  [PDF]
Obed Ernest A. Nettey, Yeetey A. Enuameh, Emmanuel Mahama, Abubakari Sulemana, George Adjei, Stephaney Gyaase, Samuel Afari-Asiedu, Robert Adda, Abena Konadu Yawson, Gifty Fosuaa Nuamah, Edward Apraku Anane, Livesy Abokyi, Charles Zandoh, Martha Abdulai, Ellen Abrafi Boamah, Kwame Adjei, Seeba Amenga-Etego, Francis Dzabeng, Charlotte Tawiah-Agyeman, Frank Baiden, Kwaku Poku Asante, Seth Owusu-Agyei
Advances in Reproductive Sciences (ARSci) , 2015, DOI: 10.4236/arsci.2015.31001
Abstract: Family planning is known to prevent maternal deaths, but some social norms, limited supplies and inconsistent use makes this difficult to achieve in most low- and middle-income countries. In spite of the high fertility levels in most sub-Saharan African countries and the potential economic benefits of family planning, its patronage remains very low in the sub-region. This study was with the objective of identifying the levels of awareness, utilization, access to and perceptions about family planning and contraception. A cross-sectional study design was used for the study, with data collected from multiple sources using both quantitative and qualitative approaches. Relevant findings included a marked disconnect between family planning/contraceptive knowledge and use. The pills and injectables were the most frequently used, but females in the study population poorly patronised emergency contraception. Supplies of most family planning methods were found to be health facility based, requiring clients to have to necessarily go there for services. Some respondents harboured perceptions that family planning was the responsibility of females alone and that it fuelled promiscuity among female users. Recommendations made include ensuring that health facilities had adequate staff and expertise to provide facility-based family planning services and also to disabuse the minds of community members of the negative perceptions towards family planning.
Family Planning Needs of Adolescents in Predominantly Rural Communities in the Central Part of Ghana  [PDF]
Yeetey Enuameh, Obed Ernest Nettey, Emmanuel Mahama, Charlotte Tawiah, Ellen Boamah, Abubakari Sulemana, George Adjei, Stephanie Gyaase, Samuel Afari Asiedu, Alexander Manu, Charles Zandoh, Kwaku Poku Asante, Seth Owusu-Agyei
Open Journal of Preventive Medicine (OJPM) , 2015, DOI: 10.4236/ojpm.2015.56030
Abstract: The manuscript presents findings of a descriptive analysis of data from a cross-sectional study of adolescents aimed at identifying their family planning needs and the best approaches to addressing them in the Kintampo Districts of Ghana. Data for the paper were from the family planning module of a sexual and reproductive health survey carried out by the Kintampo Health and Demographic Surveillance System in 2011. Adolescents in this study recorded high marital (1.6% females and 0.4% males) and pregnancy rates (11.5% females and 1.5% males). Their knowledge of contraceptive methods was high (87.7% females and 82% males), but utilization was low (17.9% females and 6% males). Most study participants viewed family planning as important to their health and wellbeing (59.6% females and 58.6% males). A minority of adolescents were of the perception that contraceptive use was solely the responsibility of women (41.1% females and 32.4% males); and that the use of contraceptives could lead to promiscuity among women (43.8% females and 42.5% males). Those adolescents who previously had unwanted pregnancies would have accepted some help in preventing it (33.1% females and 9.1% males). Recommendations made by respondents included creating a friendly atmosphere by care providers for family planning services delivery to adolescents. Other suggestions were ensuring that family planning services are available and accessible to adolescents, and educating adolescents on the diverse methods available.
Carimagua: La investigación y el desarrollo en ecosistemas de baja fertilidad
Obed García Durán
Revista Colombiana de Ciencias Pecuarias , 2009,
Abstract:
Nonnegative Matrix Factorization with Zellner Penalty  [PDF]
Matthew A. Corsetti, Ernest Fokoué
Open Journal of Statistics (OJS) , 2015, DOI: 10.4236/ojs.2015.57077
Abstract:

Nonnegative matrix factorization (NMF) is a relatively new unsupervised learning algorithm that decomposes a nonnegative data matrix into a parts-based, lower dimensional, linear representation of the data. NMF has applications in image processing, text mining, recommendation systems and a variety of other fields. Since its inception, the NMF algorithm has been modified and explored by numerous authors. One such modification involves the addition of auxiliary constraints to the objective function of the factorization. The purpose of these auxiliary constraints is to impose task-specific penalties or restrictions on the objective function. Though many auxiliary constraints have been studied, none have made use of data-dependent penalties. In this paper, we propose Zellner nonnegative matrix factorization (ZNMF), which uses data-dependent auxiliary constraints. We assess the facial recognition performance of the ZNMF algorithm and several other well-known constrained NMF algorithms using the Cambridge ORL database.

Quality Assessment of Artemether/Lumefantrine Tablets Sampled from Pharmacies in Accra, Using the MVHimagePCv8.exe Color Software  [PDF]
Ebenezer Adu Nyarko, Henry Nettey
Pharmacology & Pharmacy (PP) , 2013, DOI: 10.4236/pp.2013.48081
Abstract: Background: Widespread resistance has been recorded with the use of monotherapy in the management of malaria. In 2000, Ghana initiated the process of using Artemisinin-based combination therapy (ACT) following the World Health Organization’s (WHO) recommendation. Globally and in Ghana, there stands a high risk of development of resistance to the ACTs due to the act of counterfeiting or substandard drugs. In 2009, there was a report that fake Coartem, an ACT had been found in Ghana by the Drug Quality and Information (DQI) Program; this is a serious national problem that needs redress thus the need to conduct this study to check if there are any substandard or counterfeit Artemether/ Lumefantrine tablets on the Ghanaian market. Method: Using Representative sampling method, a total of nine different brands or samples of artemether/lumefantrine tablets were sampled from nine different Pharmacies in Accra. The samples were analyzed using a validated MVHimagePCv8.exe colour software technology. Results: The International Conference on Harmonization (ICH) and United States Pharmacopoeia (USP) recommend that for assay of tablets, the percentage concentration should fall within 80%-120%. After the analysis, seven out of the nine samples passed the test to varying degrees. Two samples (AL-S4 and AL-S6) however failed the test with AL-S4 recording artemether concentration (126.07%) above and Lumefantrine concentration (78.38%) below the recommended figure while AL-S6’s 51.53% failed to meet the minimum allowable concentration for lumefantrine in a tablet. Conclusion: The results presented show that some Artemether/Lumefantrine tablets on the Ghanaian market still have issues with regards to quality or level of active ingredients. There would therefore be the need for further studies to be conducted into these products especially those that failed the test.
Page 1 /462126
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.