Characterizing Water as Gap Fill for Double Glazing Units

The use of sunlight has always been a major goal in the design and operation of commercial buildings to minimize electrical consumption of artificial lighting systems. Glazing systems designed to allow optimal visible light transmission also allow significant unwanted direct solar heat gain caused by infrared light. Conversely, glazing systems that are designed to reflect unwanted direct solar heat gain significantly reduce the transmittance of visible light through windows. The goal of this research was to characterize the performance of water as gap-fill for double-glazing units in eliminating the compromises that exist in current glazing systems with respect to light and heat transmittance. An in situ test approach and computer simulations were conducted to measure the performance of water-filled glazing units against air-filled glazing units. The thermal transmittance and solar heat gain coefficient values obtained from both the field experiments and computer simulations, glazing units with air-fill proved better than the glazing units with non-flowing water-fill. However, the high convective coefficient and the high thermal mass of the water can be used to its advantage when it is allowed to flow at peak temperatures, thus, maintaining lower temperature swings indoor. This can lead to a reduction of about 50-70% direct solar heat and still maintain high visibility

Diversity and Abundance of Bird Species in Mole National Park, Damongo, Ghana

A survey of birds in Mole National Park in the Northern Region of Ghana between February and May 2016 to identify and determine the diversity and abundance of bird species. Using Point Count Method, all birds were observed at fixed locations using an Opticron Polarex 8×40 field binocular and identification of birds’ species were confirmed by Birds of Ghana and recorded vocal replay of birds. The Gamin GPS device was used to take the coordinate and location of all stations. 366 of individual birds consisting of 59 species were recorded, 45 were identified by sighting and 14 by vocalization, all belonging to 29 families. Species abundance indicated that Helmeted Guineafowl (Numida meleagris) (Relative Abundance (RA)= 4.90%), followed by Red-throated Bee-eater (Merops hirundineus) (RA =4.63%), Red-billed firefinch (Lagonosticta Senegala) (RA =4.36%), Little Weaver (Ploceus lucteolus) (RA =4.09%), Senegal Parrot (Piocephals senegalus) (RA =3.81%), Bar-breasted firefinch (Lagonosticta rufopicta) (RA =3.54%), White faced Whistling Duck (Dendrocygna viduata) (RA =3.27%) and Laughing Dove (Sterptopelia senegalensis) (RA =3.00%), whereas, the Bateleur Eagle (Terathopius ecaudatus) (0.54), African Dwarf Kingfisher (Ceyx lecontei) (0.27) and Klaas’s Cuckoo (Chrysococcyx caprius) (0.27) had low relative species abundance. Estrildidae and Alcedinidae families were highest in abundance, (8.5%) of the total respectively, followed by Columbidae and Malaconotidae with the same relative abundance (6.8%), Ploceidae (5.1%). The practice of bird watching aimed at avifauna conservation can be encouraged in the fringe communities such as; Morgnori, Larabanga and Murugu, to document and protect bird species to improve community livelihood. Further investigations are required to compare avifauna within the off reserve and the protected areas (on reserve). Keywords: Avifauna, Opticron, Polarex, Diversity, Abundanc

Are Fc gamma receptor polymorphisms important in HIV-1 infection outcomes and latent reservoir size?

Fc gamma receptors (FcγR) are cell surface glycoproteins which trigger specific effector-cell responses when cross-linked with the Fc portions of immunoglobulin (IgG) antibodies. During HIV-1 infection, the course of disease progression, ART response, and viral reservoir size vary in different individuals. Several factors may account for these differences; however, Fc gamma receptor gene polymorphisms, which influence receptor binding to IgG antibodies, are likely to play a key role. FcγRIIa (CD32) was recently reported as a potential marker for latent HIV reservoir, however, this assertion is still inconclusive. Whether FcγR polymorphisms influence the size of the viral reservoir, remains an important question in HIV cure studies. In addition, potential cure or viral suppression methods such as broadly neutralizing antibody (bNAbs) may depend on FcγRs to control the virus. Here, we discuss the current evidence on the potential role played by FcγR polymorphisms in HIV-1 infection, treatment and vaccine trial outcomes. Importantly, we highlight contrasting findings that may be due to multiple factors and the relatively limited data from African populations. We recommend further studies especially in sub-Saharan Africa to confirm the role of FcγRIIa in the establishment of latent reservoir and to determine their influence in therapies involving bNAbs

Intimate partner violence as a predictor of marital disruption in sub-Saharan Africa: A multilevel analysis of demographic and health surveys

Introduction: Intimate partner violence has gained momentum as health, social, and human right issue across the globe. Women within sub-Saharan Africa often do not report any case of violence due to the acceptance of violence which is rooted in their socio-cultural beliefs and practices. With a high prevalence of marital disruption in sub-Saharan Africa, it is important that we understand the role intimate partner violence plays in this phenomenon. Hence, this present study assessed the association between intimate partner violence and marital disruption among women in sub-Saharan Africa. Methods: This study involved a cross-sectional analysis of data from the Demographic and Health Survey of 25 countries in sub-Saharan Africa. Multilevel binary logistic regression analysis was carried out and the results were presented as adjusted odds ratios (aOR) at 95% Confidence Interval (CI). Results: The prevalence of physical, emotional, and sexual violence in the 25 countries considered in this study were 29.3%, 28%, and 11.5%, respectively. The highest prevalence of physical violence was in Sierra Leone (50.0%) and the lowest prevalence was in Comoros (5.7%). For emotional violence, the highest prevalence was in Sierra Leone (45.9%) and the lowest prevalence was in Comoros (7.9%). The highest prevalence of sexual violence was in Burundi (25.5%) and the lowest prevalence was in Comoros (1.8%). The average prevalence of marital disruption was 7.7%. This ranged from 1.3% in Burkina Faso to 20.2% in Mozambique. We found that women who had ever experienced physical violence were more likely to experience marital disruptions compared to those who had never experienced physical violence [aOR = 1.42, 95% CI = 1.35–1.50]. Women who had ever experienced sexual violence were more likely to experience marital disruption compared to those who had never experienced sexual violence [aOR = 1.29, 95% CI = 1.21–1.37]. Finally, women who had ever experienced emotional violence were more likely to experience marital disruption compared to those who had never experienced emotional violence [aOR = 1.86, 95% CI = 1.76–1.96]. Conclusion: Findings from this study call for proven effective intimate partner violence reduction interventions such as strengthening laws against intimate partner violence in sub-Saharan Africa. Again, marital counseling and health education interventions should be implemented to address the role of intimate partner violence on the wellbeing of women and the stability of couples in sub-Saharan Africa

Towards the prevention of sexually transmitted infections (STIs): Healthcare-seeking behaviour of women with STIs or STI symptoms in sub-Saharan Africa

Objective: Sexually transmitted infections (STIs) constitute major public health problems because of their prevalence and contribution to mortality and morbidity worldwide. Healthcare seeking for STIs plays a significant role in the global prevention of STIs. We examined the prevalence and factors associated with healthcare seeking for STIs or STI symptoms among women in sub-Saharan Africa (SSA). Methods: Data on 38 394 women of reproductive age from the most recent Demographic and Health Surveys of 28 countries in SSA were analysed. Percentages were used to summarise the prevalence of healthcare seeking for STIs or STIs symptoms. The factors associated with healthcare seeking for STIs or STI symptoms were examined using multilevel binary logistic regression analysis. We presented the results using adjusted odds ratios (aORs) with 95% confidence intervals (CIs). Results: Overall, the proportion of women with STIs or STI symptoms who sought healthcare was 66.1%, with the highest and lowest proportion found in Liberia (85.6%) and Ethiopia (37.9%) respectively. The likelihood of seeking healthcare for STIs or STI symptoms increased with increasing wealth quintile and level of education. Working women, older women, cohabiting women, women with comprehensive HIV/AIDS knowledge, women exposed to mass media, those who had no barrier to healthcare access, and those covered by health insurance had greater odds of seeking treatment for STIs or STI symptoms. On the contrary, the odds of seeking treatment for STIs or STI symptoms was lower among married women and women who lived in rural areas. Conclusion: The findings of the study call for strengthening of policies, programmes, and interventions geared towards improving the healthcare-seeking behaviour of women with STIs, taking into consideration the factors identified in this study

Interpersonal violence among in-school adolescents in sub-Saharan Africa: Assessing the prevalence and predictors from the Global School-based health survey

Interpersonal violence in adolescents has over the years grown into a serious public health problem that merits a robust intervention. This study, therefore, assessed the prevalence and predictors of interpersonal violence among in-school adolescents in sub-Saharan Africa (SSA). The study involved a cross-sectional analysis of data from the Global School-based Health Survey conducted between 2012 and 2017 from eight sub-Saharan African countries. A total of 14,967 in-school adolescents aged 10-19 years were included in the pooled analysis. A multivariable binomial logistic regression was used to determine the predictors of interpersonal violence using the adjusted odds ratio (aOR) with their respective 95% confidence intervals (CIs). The overall prevalence of interpersonal violence among in-school adolescents in SSA was 53.7%. The odds of interpersonal violence were higher among adolescents who were bullied (aOR = 2.52, 95% CI = 2.23-2.85), had an injury (aOR = 2.42, 95% CI = 2.15-2.72), had suicidal attempts (aOR = 1.40, 95% CI = 1.16-1.70), were truant (aOR = 1.51, 95% CI = 1.33-1.72), used alcohol (aOR = 1.49, 95% CI = 1.06-2.11), and used tobacco (aOR = 1.46, 95% CI = 1.23-1.74). In-school adolescents with peer support, parents or guardians bonding, those whose parents or guardians respected their privacy, and those aged 15 years or older were less likely to experience interpersonal violence. These factors provide education directors and school heads/teachers with relevant information to guide the design of specific interventions such as parent-teacher meetings and programs, peer educator network system, face-to-face counseling sessions, Rational Emotive Behavioural Education (REBE) and substance use cessation therapy to prevent interpersonal violence, particularly physical fights and attacks in school settings. Also, students should be sensitized on the negative effects of interpersonal violence and those who have been exposed to it should be counselled. School rules should be strengthened and appropriate punishment given to students who engage in violence baheviours in schools in order to deter others from engaging in them

Socio-demographic factors associated with medication adherence among People Living with HIV in the Kumasi Metropolis, Ghana

Background Medication adherence is important to the survival of People Living with HIV (PLHIV) globally. Although, HIV viral load is reduced by antiretroviral therapy (ART), the number of people on ART continues to rise in Ghana. In the Kumasi Metropolis, Ghana, we looked at the socio-demographic factors associated with medication adherence among PLHIV. Methods A quantitative study involving 420 PLHIV who sought healthcare at the Kumasi South Regional Hospital was conducted utilizing a cross-sectional study design. We employed a structured questionnaire to collect data on medication adherence using the eight-item Morisky Medication Adherence Scale (MMAS) and socio-demographic factors that influence medication adherence. The data were analysed using Stata 14.2. Frequencies and percentages were used to present the descriptive data. The association between socio-demographic factors and medication adherence among PLHIV was investigated using both univariate and multivariate analyses. Results More than half (53.10%) of PLHIV adhered to ART. Place of residence was significantly established to be influencing medication adherence among PLHIV. PLHIV who were residing in urban centers (aOR = 3.61; CI = 2.24-5.82) were more likely to adhere to medication as compared to those who resided in rural areas. Conclusion Slightly more than half of PLHIV took their medicines as prescribed. Government and Policymakers such as the Ghana AIDS Commission, Ministry of Health, and Ghana Health Service should incorporate socio-demographic factors such as place of residence while creating and executing medication adherence initiatives to evaluate HIV management regimen for PLHIV

Spatial distribution and multilevel analysis of factors associated with child marriage in Nigeria

Background: Child marriage among women has become a major threat to the rights of women, especially in low- and middle-income countries. The marriage of girls below age 18 y is a major public and global health challenge. Therefore, this study examined the spatial pattern and factors associated with child marriage in Nigeria. Methods: The data were sourced from the 2018 Nigeria Demographic and Health Survey. The study included a total of 4283 young women aged 20–24 y. The findings were provided in the form of spatial maps and adjusted ORs (aORs) with 95% confidence interval (CI). Results: Hotspot areas for child marriage in Nigeria were located in Sokoto, Kebbi, Katsina, Kano, Jigawa, Yobe, Bauchi, Niger, Borno, Gombe, and Adamawa. The prevalence of child marriage in Nigeria was 41.50%. The likelihood of child marriage in Nigeria was high among those currently working (aOR=1.31; 95% CI 1.11 to 1.55) compared with young women who were not working. On the other hand, young women whose partners had secondary education and above (aOR=0.57; 95% CI 0.45 to 0.73) were less likely to report child marriage in Nigeria compared with those whose partners had no education. Conclusions: The findings of the study indicate that there are several hotspots in Nigeria that need to be targeted when implementing interventions aimed at eliminating child marriage in the country

Safer sex negotiation and parity among women in sub-Saharan Africa

Women’s ability to negotiate for safer sex has effects on their sexual and reproductive health. This study investigated the association between safer sex negotiation and parity among women in sub-Saharan Africa. The data were sourced from the Demographic and Health Surveys of 28 sub-Saharan African countries conducted from 2010 to 2019. A total of 215,397 women aged 15–49 were included in the study. Multilevel logistic analysis was conducted to examine the association between safer sex negotiation and parity among women in sub-Saharan Africa. The results were presented as adjusted odds ratios (aOR) and the significance level set at p<0.05. The overall prevalences of safer sex negotiation and high parity among women in sub-Saharan Africa were 82.7% and 52.1%, respectively. The prevalence of high parity ranged from 32.3% in Chad to 72.1% in Lesotho. The lowest prevalence of safer sex negotiation was in Chad (16.8%) while the highest prevalence was recorded in Rwanda (99.7%). Women who had the capacity to negotiate for safer sex were less likely to have high parity compared with those who had no capacity to negotiate for safer sex (aOR = 0.78, CI: 0.75–0.81). Other factors that were associated with high parity were age, educational level, marital status, exposure to media, contraceptive use, religion, wealth quintile, sex of household head, and place of residence. The study identified significant association between safer sex negotiation and high parity among women of reproductive age in sub-Saharan Africa. It is worth noting that women’s ability to negotiate for safer sex could reduce high parity among women in sub-Saharan Africa. Therefore, policies and programmes aimed at birth control or reducing high parity among women could be targeted at improving their capacity to negotiate for safer sex through education