196 research outputs found
LANDSCAPING FOR PASSIVE SECURITY AND ADAPTATION TO CLIMATE IN CHURCH ENVIRONMENT, NIGER STATE, NIGERIA
Nigeria is faced with several risks ranging from problems of climate change to security challenges and this is not limited to a specific aspect of the built environment as all buildings and environment are affected. The places of worship are greatly affected in terms of security which affects the disposition of Christians during worship at churches. Many of the studied churches were seen to have made use of landscape elements but these were not placed with the aim of using them to deter intrusion as in the case of security but rather for beautifying the church. The challenge for architects and church administrator is how to cope with challenges of security and climate change. This paper examines landscaping as a catalyst for deterring intrusion of threats passively and enhancing climate adaptation in church environment in Nigeria. The research method adopted for this study is the descriptive survey method by collecting qualitative and quantitative data. The results were analyzed using descriptive tools in SPSS and are presented in tables and charts while the pictures are presented in plates. The study reveals that it is possible to achieve passive security and solve some climatic challenges in church environment using soft landscape elements. The paper is concluded by determining the aspects of the building where the architect can infuse the specific landscape elements to achieve the aim of the paper. It further states the type of landscape elements that could be used to achieve the aim of the study hence developing a responsive building design scheme. http://dx.doi.org/10.4314/njt.v36i1.
An evaluation of Alberta's Inter-Municipal Collaborative Framework initiative relative to wildfire risk and Principles of Good Governance
With the continued increase in wildfire incidents, the last few decades in Canada have seen increased costs related to wildfires, and different levels of government and agencies are beginning to see the need for a more collaborative approach to wildfire management. This research evaluates the existing collaborative framework and capacity on wildfire handling across mitigation, emergency response, and post-event recovery between municipalities in Alberta. The study relied on the analysis of 26 completed Inter-Municipal Collaboration Frameworks (ICF) and 15 Inter-municipal Emergency Services Agreements (IESA) in Alberta. Based on these documents' content analysis, the study revealed a long-existing history of collaboration among municipalities, indicating appreciation for inter-municipal collaboration. It also reveals a well-articulated system regarding collaborative instruments for emergency responses compared to the other domains of wildfire examined. Overall, the study indicated a strong existing collaborative structure and capacity as collaborative instruments show high conformity with the Principle of Good Governance
Safety of Vitamin D Food Fortification and Supplementation: Evidence from Randomized Controlled Trials and Observational Studies
The safety considerations of food-based solutions for vitamin D deficiency prevention, such as fortification and supplementation, are critical. On the basis of collective data from 20 randomized controlled trials (RCTs) and 20 national healthy surveys, as well as prospective cohort studies (PCSs) across the ODIN project (“Food-based solutions for optimal vitamin D nutrition and health through the life cycle”, FP7-613977), we analyzed the potential safety issues arising from vitamin D intakes and/or supplementation. These adverse consequences included high serum 25-hydroxyvitamin D (S-25(OH)D) concentrations (>125 nmol/L), high serum calcium concentrations, and vitamin D intakes in excess of the tolerable upper intake levels (ULs). In the RCTs (n = 3353, with vitamin D doses from 5–175 µg/day), there were no reported adverse effects. The prevalence of high S-25(OH)D wa
Assessment of impediments to competition in the pharmaceutical sector in Jamaica : supplementary volume; comparative in vitro dissolution and biopharmaceutical properties of some multi-source antihypertensive drug products marketed in Jamaica
A study has been done on the biopharmaceutical properties of antihypertensive drug
products marketed in Jamaica. Four pharmacological classes of antihypertensive drugs were
selected: Beta blocker (Atenolol), Angiotensine Converting Enzyme inhibitors (ACEI), Diuretics
and Central Alpha Blocker (Methyldopa).
Products were tested for uniformity of weight, content of active ingredients (assay) and
dissolution rates, following the British Pharmacopoeia/USP procedures.
It was observed that products contained the required level of active ingredients. However, some
products make the active ingredient available for absorption faster and to a greater extend than
others.
Results generally suggest that more than company reputation and cost is required for making
rational decisions on drug product selection
BTC price volatility: Fundamentals versus information
This paper offers a plausible response to “what explains the sporadic volatility in the price of Bitcoin?” We hypothesized that market “fundamentals” and “information demands” are key drivers of Bitcoin’s unpredictable price fluctuation. We adopt the transfer-function [Autoregressive Distributed Lag, ARDL] model and its Bounds testing approach to verify how the volatility of the price of Bitcoin responds to its transaction volume, cryptocurrency market capitalisation, world market equity index and Google search. We found the existence of long-run cointegration relation and observed that all the variables except the equity index positively explain the volatility of Bitcoin price. The result established evidence that market fundamentals drive erratic swing in Bitcoin price than information. Keywords: Bitcoin price volatility Bitcoin market fundamentals information demand ARD
Tumours and tumour-like lesions of the lower face at Korle Bu Teaching Hospital, Ghana – an eight year study
<p>Abstract</p> <p>Background</p> <p>The oro-facial region including the jawbones, the maxilla and mandible and related tissues can be the site of a multitude of neoplastic conditions. These tumours have a predilection for the entire facial region; however, odontogenic tumours tend to affect the mandible more than the maxilla, especially, in West African children. We report results from a retrospective study spanning eight years on the frequency, clinical presentation, sites and character of lower face tumours seen in the main referral hospital in Ghana.</p> <p>Patients and methods</p> <p>Records of consecutive patients of all age and sex seen by the first author's team at the Department of Oral and Maxillofacial Surgery, Korle-Bu Teaching Hospital with tumours affecting the lower part of the face from January 1996 to December 2003 were retrieved, coded and entered into a database. The data were then analyzed by age, sex, presenting signs and symptoms, site of lesion, and their histology.</p> <p>Results</p> <p>A total of 394 patients with oro-facial swellings were retrieved from the registry out of which 210 had lower face tumour and tumour-like lesions. The complete data set was obtained for 171 patients, comprising 99 (58%) males and 72 (42%) females. The most common clinical presenting features were mandibular facial swelling (63%), intra-oral swelling (55%), pain (41%) and ulceration (29%). The tumours were predominantly found in the right (43%), anterior (19%) and left (18%) aspects of the lower face. The remainder making up 20% were found in the floor of the mouth, tongue and lips. Seventy eight (45.6%) of the patients presented with lesions that were classified as malignant of which 54 (62%) were diagnosed as squamous cell carcinoma (SCC). Sixty-two (36.3%) had benign odontogenic tumours and thirty-one (18.1%) had non-odontogenic tumour-like lesions. Fifty-four (62%) of malignant tumours were squamous cell carcinoma; 58 (93.6%) of the benign odontogenic tumours were classified as ameloblastoma. The mean age at presentation of all lesions was 40.4 years with over 50% of benign lesions in patients aged between 11 and 30 years. Malignant tumours were more commonly detected in patients between 41 and 70 years (63%).</p> <p>Conclusion</p> <p>Tumours and tumour-like lesions of the lower face comprising the mandible, tongue and adjacent structures are a diverse group of neoplasm and are seen commonly in practice of Maxillofacial surgery. Both malignant and benign tumours are seen in the Ghanaian population. In the present study, SCC and ameloblastoma were the commonest malignant and benign odontogenic tumours seen respectively; the two representing more than 65% of all tumours.</p
Variability in traditional processing of gari: a major food security product from cassava
Cassava is a major crop for food security in Nigeria and its principal processed form is gari. Gari processing practices were observed in the southwest (Oyo State) and southeast (Benue State) of Nigeria using two complementary approaches: 1) semi-quantitative surveys with processors (n=123) and 2) actual detailed measurements at processing units (n=7). Size of processing operations and type of practices differed significantly between the two States. There were also intra-State differences, influenced by ethnicity and customs. Variability of processing practices should be considered whilst seeking to improve processing productivity and introducing nutritious varieties of cassava to feed fast-growing Nigerian population
Odontogenic tumors and giant cell lesions of jaws - a nine year study
<p>Abstract</p> <p>Objectives</p> <p>A definite geographic variation has been observed in the frequency of odontogenic tumors and giant cell lesions of the jaws reported from different parts of the world. However, there are a few studies on these lesions, especially giant cell lesions, reported from India. Hence, this study was designed to provide a demographic data on the odontogenic tumors and giant cell lesions reported from our institute located in the city of Hyderabad. Hyderabad is the capital city of the southern state of Andhra Pradesh in India. A retrospective analysis of odontogenic tumors and giant cell lesions of jaws reported in our institute between the years 2000 and 2009 was done and this data was compared with previous reports from different parts of the world and India.</p> <p>Methods</p> <p>Biopsies of the lesions received between the years 2000 and 2009 were reviewed and patient's history, clinical, radiological and histopathological characteristics were analyzed.</p> <p>Results</p> <p>A total of 77 biopsies were received during the nine year study period. These lesions were more frequently seen in the males, in a younger age group and showed a predilection for the mandible. Most of them presented as radiolucent, slow growing and painless lesions. Ameloblastomas (71.4%) constituted the majority of odontogenic tumors while central giant cell granulomas (7.8%) constituted the majority of giant cell lesions.</p> <p>Conclusion</p> <p>These lesions showed a definite geographic variation with ameloblastomas being the most common odontogenic tumors and odontomas being relatively rarer lesions in our region.</p
Determinants of insecticide-treated net ownership and utilization among pregnant women in Nigeria
<p>Abstract</p> <p>Background</p> <p>Malaria during pregnancy is a major public health problem in Nigeria leading to increase in the risk of maternal mortality, low birth weight and infant mortality. This paper is aimed at highlighting key predictors of the ownership of insecticide treated nets (ITNs) and its use among pregnant women in Nigeria.</p> <p>Methods</p> <p>A total of 2348 pregnant women were selected by a multi-stage probability sampling technique. Structured interview schedule was used to elicit information on socio-demographic characteristics, ITN ownership, use, knowledge, behaviour and practices. Logistic regression was used to detect predictors of two indicators: ITN ownership, and ITN use in pregnancy among those who owned ITNs.</p> <p>Results</p> <p>ITN ownership was low; only 28.8% owned ITNs. Key predictors of ITN ownership included women who knew that ITNs prevent malaria (OR = 3.85; <it>p </it>< 0001); and registration at antenatal clinics (OR = 1.34; <it>p </it>= 0.003). The use of ITNs was equally low with only 7.5% of all pregnant women, and 25.7% of all pregnant women who owned ITNs sleeping under a net. The predictors of ITN use in pregnancy among women who owned ITNs (N = 677) identified by logistic regression were: urban residence (OR = 1.87; <it>p </it>= 0.001); knowledge that ITNs prevent malaria (OR = 2.93; <it>p </it>< 0001) and not holding misconceptions about malaria prevention (OR = 1.56; <it>p </it>= 0.036). Educational level was not significantly related to any of the two outcome variables. Although registration at ANC is significantly associated with ownership of a bednet (perhaps through free ITN distribution) this does not translate to significant use of ITNs.</p> <p>Conclusions</p> <p>ITN use lagged well behind ITN ownership. This seems to suggest that the current mass distribution of ITNs at antenatal facilities and community levels may not necessarily lead to use unless it is accompanied by behaviour change interventions that address the community level perceptions, misconceptions and positively position ITN as an effective prevention device to prevent malaria</p
A call for public archives for biological image data
Public data archives are the backbone of modern biological and biomedical
research. While archives for biological molecules and structures are
well-established, resources for imaging data do not yet cover the full range of
spatial and temporal scales or application domains used by the scientific
community. In the last few years, the technical barriers to building such
resources have been solved and the first examples of scientific outputs from
public image data resources, often through linkage to existing molecular
resources, have been published. Using the successes of existing biomolecular
resources as a guide, we present the rationale and principles for the
construction of image data archives and databases that will be the foundation
of the next revolution in biological and biomedical informatics and discovery.Comment: 13 pages, 1 figur
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