Occurrence, distribution and diversity of microflora in the intertidal mudflats and sandbars of the Cross River Estuary, Nigeria

A comparative study was carried out on the occurrence, distribution and diversity of microflora in the intertidal mudflats and sandbars at the Nsidung Beach end of the Cross River Estuary, Nigeria between February and April,2009. Samples were analysed within six hours of collection. Identification of microflora was based on standard identification guides and texts. Altogether, 16 microflora taxa belonging to 13 genera and 5 divisions were identified.Over eighty five percent of the microflora was recorded in the mudflats while 14.0% were identified in the sandbars. Diversity indices of 1.69 and 1.59 were obtained for the mudflats and sandbars, respectively. Results of the study arediscussed in relation to the differential nutrient entrapment and retention capacities of the mudflats and sandbars in the estuary

Cost-Benefit Analysis of Anti-Retroviral Therapy (Art) for HIV/AIDS Treatment and its Economic Implications in Nigeria

Antiretroviral therapy (ART) means treating retroviral infections like HIV with drugs. These drugs though do not kill the virus but slowed down the growth of the virus. When the virus is slowed down, Human Immunodeficiency Virus (HIV) disease is also slowed down. ART drugs are referred to as ARV and ARV therapy is referred to as ART. From the chi square analysis, this study contends that the cost of treating HIV/AIDS is high and that is why most patients cannot access HIV/AIDS treatment even though these drugs are supposed to be free. It was also discovered that HIV/AIDS disease reduces labour force and productivity of the affected country and also affect individual income which in turn reduces savings rate and low level of school enrollment. The researcher therefore suggests that bay centers should be opened in rural areas for easy accessibility by people who suffer from HIV/AIDS leaving within these areas

Epistemological access through lecture materials in multiple modes and language varieties: the role of ideologies and multilingual literacy practices in student evaluations of such materials at a South African University

This paper seeks to address the ways in which ideology and literacy practices shape the responses of students to an ongoing initiative at the University of the Western Cape aimed at diversifying options for epistemological access, specifically the language varieties and the modes in which parts of the curriculum for a third year linguistics module are delivered. Students’ responses to the materials in English and in two varieties of Afrikaans and isiXhosa (as mediated in writing vs orally) are determined, and used as basis to problematize decisions on language variety and mode in language diversification initiatives in Higher Education in South Africa. The findings of the paper are juxtaposed against particular group interests in the educational use of a language as well as differences in the affordances and impact of different modes of language use. The paper suggests that beyond the euphoria of using languages other than English in South African Higher Education, several issues (such as entrenched language practices, beliefs and language management orientations) require attention if the goals of transformation in this sector are to be attained

Childhood socioeconomic position and objectively measured physical capability levels in adulthood: a systematic review and meta-analysis

<p><b>Background:</b> Grip strength, walking speed, chair rising and standing balance time are objective measures of physical capability that characterise current health and predict survival in older populations. Socioeconomic position (SEP) in childhood may influence the peak level of physical capability achieved in early adulthood, thereby affecting levels in later adulthood. We have undertaken a systematic review with meta-analyses to test the hypothesis that adverse childhood SEP is associated with lower levels of objectively measured physical capability in adulthood.</p> <p><b>Methods and Findings:</b> Relevant studies published by May 2010 were identified through literature searches using EMBASE and MEDLINE. Unpublished results were obtained from study investigators. Results were provided by all study investigators in a standard format and pooled using random-effects meta-analyses. 19 studies were included in the review. Total sample sizes in meta-analyses ranged from N = 17,215 for chair rise time to N = 1,061,855 for grip strength. Although heterogeneity was detected, there was consistent evidence in age adjusted models that lower childhood SEP was associated with modest reductions in physical capability levels in adulthood: comparing the lowest with the highest childhood SEP there was a reduction in grip strength of 0.13 standard deviations (95% CI: 0.06, 0.21), a reduction in mean walking speed of 0.07 m/s (0.05, 0.10), an increase in mean chair rise time of 6% (4%, 8%) and an odds ratio of an inability to balance for 5s of 1.26 (1.02, 1.55). Adjustment for the potential mediating factors, adult SEP and body size attenuated associations greatly. However, despite this attenuation, for walking speed and chair rise time, there was still evidence of moderate associations.</p> <p><b>Conclusions:</b> Policies targeting socioeconomic inequalities in childhood may have additional benefits in promoting the maintenance of independence in later life.</p&gt

Speaking with a forked tongue about multilingualism in the language policy of a South African university

As part of a broader student campaign for ‘free decolonized education’, protests over language policies at select South African universities between 2015 and 2016 belied widespread positive appraisals of these policies, and revealed what is possibly an internal contradiction of the campaign. The discourse prior to the protests (e.g. “excellent language policies but problematic implementation”), during the protests (e.g. silence over the role of indigenous African languages in the “Afrikaans must fall” versus “Afrikaans must stay” contestations), and after the protests (e.g. English becoming a primary medium in some institutional policy reviews) warrant attention to critical literacy in language policy scholarship. Based on a theoretical account of speaking with a forked tongue, this article analyzes the language policy text of one South African university. The analysis suggests, simultaneously, why similar policies have tended to be positively appraised, why students’ calls for policy revisions were justified, but why the changes clamoured for arguably amount to complicity in self-harm

The effects of exercise and weight loss in overweight patients with hip osteoarthritis: design of a prospective cohort study

BACKGROUND: Hip osteoarthritis (OA) is recognised as a substantial source of disability, with pain and loss of function as principal symptoms. An aging society and a growing number of overweight people, which is considered a risk factor for OA, contribute to the growing number of cases of hip OA. In knee OA patients, exercise as a single treatment is proven to be very effective towards counteracting pain and physical functionality, but the combination of weight loss and exercise is demonstrated to be even more effective. Exercise as a treatment for hip OA patients is also effective, however evidence is lacking for the combination of weight loss and exercise. Consequently, the aim of this study is to get a first impression of the potential effectiveness of exercise and weight loss in overweight patients suffering from hip OA. METHODS/DESIGN: This is a prospective cohort study. Patients aged 25 or older, overweight (BMI > 25) or obese (BMI > 30), with clinical and radiographic evidence of OA of the hip and able to attend exercise sessions will be included. The intervention is an 8-month exercise and weight-loss lifestyle program. Main goal is to increase aerobic capacity, lose weight and stimulate a low-calorie and active lifestyle. Primary outcome is self-reported physical functioning. Secondary outcomes include pain, stiffness, health-related quality of life and habitual activity level. Weight loss in kilograms and percentage of fat-free mass will also be measured. DISCUSSION: The results of this study will give a first impression of potential effectiveness of exercise and weight loss as a combination program for patients with OA of the hip. Once this program is proven to be effective it may lead to postponing the moment of total hip replacement. TRIAL REGISTRATION NUMBER: NTR1053

Effectiveness of dual-task functional power training for preventing falls in older people: Study protocol for a cluster randomised controlled trial

Background: Falls are a major public health concern with at least one third of people aged 65 years and over falling at least once per year, and half of these will fall repeatedly, which can lead to injury, pain, loss of function and independence, reduced quality of life and even death. Although the causes of falls are varied and complex, the age-related loss in muscle power has emerged as a useful predictor of disability and falls in older people. In this population, the requirements to produce explosive and rapid movements often occurs whilst simultaneously performing other attention-demanding cognitive or motor tasks, such as walking while talking or carrying an object. The primary aim of this study is to determine whether dual-task functional power training (DT-FPT) can reduce the rate of falls in community-dwelling older people. Methods/Design: The study design is an 18-month cluster randomised controlled trial in which 280 adults aged =65 years residing in retirement villages, who are at increased risk of falling, will be randomly allocated to: 1) an exercise programme involving DT-FPT, or 2) a usual care control group. The intervention is divided into 3 distinct phases: 6 months of supervised DT-FPT, a 6-month 'step down' maintenance programme, and a 6-month follow-up. The primary outcome will be the number of falls after 6, 12 and 18 months. Secondary outcomes will include: lower extremity muscle power and strength, grip strength, functional assessments of gait, reaction time and dynamic balance under single- and dual-task conditions, activities of daily living, quality of life, cognitive function and falls-related self-efficacy. We will also evaluate the cost-effectiveness of the programme for preventing falls. Discussion: The study offers a novel approach that may guide the development and implementation of future community-based falls prevention programmes that specifically focus on optimising muscle power and dual-task performance to reduce falls risk under 'real life' conditions in older adults. In addition, the 'step down' programme will provide new information about the efficacy of a less intensive maintenance programme for reducing the risk of falls over an extended period. Trial registration: Australian New Zealand Clinical Trials Registry: ACTRN12613001161718. Date registered 23 October 2013

Percentage absorbance and transmittance of various types of glasses

Studies have been made on the Percentage Absorbance and Transmittance of various types of glasses in the Ultra-Violet (UV) and Visible (Vis.) Spectrum (between the wavelength range of 200nm and 800nm). The 6mm thick plain louvre glass absorbed more than other plain louvre glasses with smaller thickness. The same results were obtained for coloured glasses. The coloured glasses absorb less in their respective colour range and hence transmit more in such range. Hence, it is recommended that thick coloured and 6mm plain louvre glasses should be used to reduce the load on the air-conditioners inside buildings, while plain louvre glass of smaller thickness be used as glazing material in flat plate solar collectors and possibly in long term storage elements. KEY WORDS: Absorbance, Transmittance, Glass. Global Jnl Pure & Applied Sciences Vol.10(2) 2004: 327-33

Verocytotoxigenic Escherichia coli O157 and Non- O157 Serogroups in Human Faecal Samples in Northeast Nigeria

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