Archives-April 2025

A juvenile specimen of Grayia ornata was collected, exhibiting divergent morphological characteristics compared to adult specimens, suggesting a potential inversion of characters during the species' development. These characters may also indicate geographical and ecological variations that are being observed for the first time in a region that has received minimal study, the Kokolopori nature reserve. To definitively ascertain whether this phenomenon constitutes an inversion of neotenic characters during development or the presence of metapopulations of the same species or an undescribed sister species, further molecular analysis is necessary.

The concept of independence, central to self-regulated learning (SRL), differs from interdependence, the focus of learning communities. However, a hybridization of the two conceptualizations is not inimical. In fact, careful consideration of the thrust towards constructivist learning environments and the development of effective learning communities makes self-regulated learning an imperative in education at all levels. This is because self-regulated learning enhances learning outcomes and engagement in the learning process for both teachers and students. Learning communities have also been noted for their ability to enhance engagement, improve achievement, and facilitate authentic learning. Teachers are aware of the value of self-regulated learning (SRL), however, the extent to which it is perceived as critical to the success of effective learning communities is taken for granted. This position paper argues for the incorporation of SRL into the learning community pedagogic framework. In this context, the value and operationalization of SRL will be explored through explication of SRL studies implemented in real classrooms. Particular emphasis will be placed on the ways in which the aims of SRL and learning community pedagogies meet and diverge and the manner in which essential features the two might be integrated to enhancing the latter.

The alarming statistics of school dropouts also have different reasons that need to be studied holistically to t. The non-completion of high school termination of education can adversely impact health, shorten lifespan, and increase stress on the healthcare system. High school graduation rates have often received extensive analysis and discourse by the Toronto District School Board and the Ministry of Education, however the absence of research and data, the strategies and challenges to improve graduation rates as they relate to public health in a Canadian context is a knowledge gap. The purpose of this phenomenological study was to explore the perceptions of liaison public health nurses, who worked directly with the Toronto District School Board, regarding influencing students in Toronto, Ontario to complete high school. Bronfenbrenner’s development ecological model was the underlying theoretical lens and conceptual framework for the study. The purposive sampling of 10 public health nurses who were interviewed regarding their role and involvement in high schools was the approach adopted to undertake this study. Data was analyzed to gain an understanding of the possible reasons for dropping out from school from the perspective of the interviewed nurses. The findings from this study indicated that liaison public health nurses believed that high school dropouts are a public health issue and that collaboration between the Ministry of Education and Public Health is an ongoing challenge that warrants ongoing attention to address this challenge. The derived recommendations from the analysis of the study data are that the exploration of connection between health and school achievements and the expanded role of public health nurses in Canadian high schools must be more rigorous and ongoing. With continued monitoring and dedicated research and resources to addressing the high dropout in the identified population demographics of school students in Ontario, improving the success of students may be expected.

An unsteady MHD casson fluid flow past an inclined moving plate is examined to address the effect of chemical reaction and thermal radiation. The resulting system of the equations governing the flow is solved analytically using regular perturbation technique. The numerical results obtained are presented graphically against the different values of the parameters entering into the problem and interpreted physically. It is found that the results obtained in the present work are in excellent agreement with the physical reality of the problem.

Bimalleolar fractures are common injuries that have a favorable outcome if treated properly. Weber type C fractures require osteosynthesis of the malleoli and stabilization of the tibiofibular syndesmosis. The aim of this study is to evaluate the treatment of these injuries using a less expensive technique involving pins and steel wire for pinning. Over a period of two years, 15 patients were treated for bimalleolar fractures with syndesmosis involvement. The average age was 34.2 years. The surgical technique was performed with an open approach, involving pinning of the lateral malleolus, syndesmosis, and medial malleolus cerclage. The functional assessment at six months showed an excellent outcome with an average Karlson and Peterson score of 90.13 (range: 85 to 97). The use of simple and less expensive techniques improves the prognosis of bimalleolar fractures in developing countries.

The chlorophyll fluorescence of the Amaranthus leaf has been irradiated with a He-Ne laserof peak wavelength 632.8 nm. Chlorophyll is a natural pigment found in green plants. It is the primary pigment that absorbs light energy from the sun for photosynthesis. This energy is then used by the plant to synthesize glucose from carbon dioxide and water. The extraction of chlorophyll from Amaranthus leaves was done using a cold/solvent extraction method. Amaranthus leaves were dried at room temperature and pounded in a mortar with pestle into powdered form. The chlorophyll solution was poured into seven different test tubes for the analysis. The cuvette was filled with the most diluted sample and irradiated with He-Ne laser light. The fluorescence intensity was measured with the help of a photocell connected to a multimeter.It has been observed that the fluorescence intensity depends on the concentration of the sample but at the same time, it also depends on the absorption of the sample. When the chlorophyll concentration is minima the fluorescence intensity is maxima. The result obtained in this work can be used to estimate the fluorescence intensity in various chlorophyll concentrations of the Amaranthus leaf.

The effects of aqueous leaf root and stem extracts of different concentrations (2.5%, 5% and 7.5%) of plant parts of Bahunia racemose Lam Common deciduous tree from ‘ Garbhagiri hills of pathardi Tahsil ( longitude19o 09’N, laditude 750 10’E) were tested on germination and seedling growth of Raphanus sativus L( Variety- Japani) Family Brassicaceae; Bahunia racemose Lam on germination and seedling growth of Raphanus sativus L., variety Japani, Leaf extract of Bahunia shows inhibition was not concentration co-related while stem and Root extract shows inhibition at higher concentration and promotion at lower concentration’ Data were analyzed by appropriate statistical method.