50 research outputs found

    Introduction of a learning management system at the Kilimanjaro Christian Medical University College

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    Background. Medical schools in Africa face daunting challenges including faculty shortages, growing class sizes, and inadequate resources. Learningmanagement systems (LMS) may be powerful tools for organising and presenting curricular learning materials, with the potential for monitoring and evaluation functions.Objective. To introduce a LMS for the first-year medical student curriculum at the Kilimanjaro Christian Medical University College (KCMU Co), inMoshi, Tanzania, in partnership with the Duke University School of Medicine (Durham, North Carolina, USA).Methods. Observations were made on the requisite information technology (IT) infrastructure and human resource needs, and participation in trainingexercises. LMS utilisation was recorded, and two (student and faculty) surveys were done.Results. The KCMU Co IT infrastructure was upgraded, and an expert team trained for LMS implementation. An introductory LMS workshop forfaculty had 7 out of 25 invitees, but attendance improved to more than 50% in subsequent workshops. Student attendance at workshops was mandatory. Use of the LMS by students rapidly expanded, and growing faculty utilisation followed later. By the end of the second semester, online examinations were offered, resulting in greater student and faculty  satisfaction owing to rapid availability of results. A year after LMS   introduction, 90% of students were accessing the LMS at least 4 days/week. A student survey identified high levels of satisfaction with the LMS software, quality of content, and learning enhancement.Conclusion. LMS can be a useful and efficient tool for curriculum  organisation, administration of online examinations, and continuous monitoring. The lessons learned from KCMU Co may be useful for similar academic settings

    Painlev\'e structure of a multi-ion electrodiffusion system

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    A nonlinear coupled system descriptive of multi-ion electrodiffusion is investigated and all parameters for which the system admits a single-valued general solution are isolated. This is achieved \textit{via} a method initiated by Painleve' with the application of a test due to Kowalevski and Gambier. The solutions can be obtained explicitly in terms of Painleve' transcendents or elliptic functions.Comment: 9 p, Latex, to appear, J Phys A FT

    Social representations and the politics of participation

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    Recent work has called for the integration of different perspectives into the field of political psychology (Haste, 2012). This chapter suggests that one possible direction that such efforts can take is studying the role that social representations theory (SRT) can play in understanding political participation and social change. Social representations are systems of common-sense knowledge and social practice; they provide the lens through which to view and create social and political realities, mediate people's relations with these sociopolitical worlds and defend cultural and political identities. Social representations are therefore key for conceptualising participation as the activity that locates individuals and social groups in their sociopolitical world. Political participation is generally seen as conditional to membership of sociopolitical groups and therefore is often linked to citizenship. To be a citizen of a society or a member of any social group one has to participate as such. Often political participation is defined as the ability to communicate one's views to the political elite or to the political establishment (Uhlaner, 2001), or simply explicit involvement in politics and electoral processes (Milbrath, 1965). However, following scholars on ideology (Eagleton, 1991; Thompson, 1990) and social knowledge (Jovchelovitch, 2007), we extend our understanding of political participation to all social relations and also develop a more agentic model where individuals and groups construct, develop and resist their own views, ideas and beliefs. We thus adopt a broader approach to participation in comparison to other political-psychological approaches, such as personality approaches (e.g. Mondak and Halperin, 2008) and cognitive approaches or, more recently, neuropsychological approaches (Hatemi and McDermott, 2012). We move away from a focus on the individual's political behaviour and its antecedents and outline an approach that focuses on the interaction between psychological and political phenomena (Deutsch and Kinnvall, 2002) through examining the politics of social knowledge

    Building Clinical Clerkships Capacity in a Resource-limited Setting: The Case of the Kilimanjaro Christian Medical University College in Tanzania

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    Background: The shortage of medical doctors in sub-Saharan Africa (SSA) has resulted in increased enrolment in medical schools, which has not been matched with increased faculty size or physical infrastructure. This process has led to overcrowding and possibly reduced quality of training. To reduce overcrowding at its teaching hospital, the Kilimanjaro Christian Medical University College introduced eight-week peripheral clerkship rotations in 2012. We explore students’ perceptions and attitudes towards peripheral hospital placements. Method: The clerkship rotations were conducted in eight hospitals operating in the northern Tanzania, after evaluating each hospitals’ capabilities and establishing the optimum number of students per hospital. Paper-based surveys were conducted after student rotations from 2014 to 2016. Results: Overall student satisfaction was moderate (strength of consensus measure (sCns), 77%). The three cohorts exhibited improving trends over three years with respect to satisfaction with clinical skills and attitude towards placements. student-preceptor interaction was rated highly (sCns 81–84%). The first cohort students expressed concerns about limited laboratory support, and poor access to Internet and learning resources. Specific interventions were undertaken to address these concerns. Conclusions: Student experiences in peripheral rotations were positive with adequate satisfaction levels. Opportunities exist for medical schools in SSA to enhance clinical training and relieve overcrowding through peripheral clerkship rotations.<p

    El presente de las ciencias naturales

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    El presente de las ciencias naturales

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    Glycogen synthesis in amphibian oocytes: evidence for an indirect pathway.

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    Glycogen is the main end product of glucose metabolism in amphibian oocytes. However, in the first few minutes after [U-14C]glucose microinjection most of the label is found in lactate. The burst of lactate production and the shape of the time curves for the labelling of glucose 6-phosphate, fructose 6-phosphate, glucose 1-phosphate and glycogen suggest a precursor-product relationship of lactate with respect to glycogen and its intermediates. Expansion (by microinjection) of the pool of glycolytic intermediates, such as dihydroxyacetone phosphate, glyceraldehyde 3-phosphate, 3-phosphoglycerate or phosphoenolpyruvate, results in a marked decrease in [U-14C]glucose incorporation into glycogen. After co-injection of doubly labelled glucoses, extensive detritiation (93%) of the glucosyl units of glycogen was observed with [2-3H, U-14C]glucose and partial detritiation with [3-3H,U-14C]glucose (34%) or [5-3H,U-14C]glucose (46%). After injection of [6-3H,U-14C]glucose, a small but significant and reproducible detritiation (13%) in glycogen was observed. Co-injection of [U-14C]glucose and 3-mercaptopicolinate resulted in marked inhibition of glycogen labelling. Half-maximal inhibition was observed at 0.58 mM 3-mercaptopicolinate, which agrees with the IC50 value (0.47 mM) for the inhibition in vitro of phosphoenolpyruvate carboxykinase activity. We concluded that in frog oocytes most of the glucosyl units are incorporated into glycogen by an indirect pathway involving breakdown of glucose to lactate, which is then converted into glycogen via gluconeogenesis. Both processes, glycolytic degradation of glucose to lactate and subsequent reconversion of the latter into hexose phosphates and glycogen, occur in the same cell

    Glutathione S-transferase activity in synovial membrane of normal and altered equine metacarpophalangeal joint

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    The activity of glutathione S-transferase (GST) has been described in the cytosol and microsomes from cells of various tissues, where it catalyzes the conjugation of glutathione with xenobiotics. This activity also has an important role related to the inactivation of free radicals. The GST activity was measured in the synovial membrane of the metacarpophalangeal joint from equine aged between 1.5 and 4 years, coming from slaughterhouses, without distinction as to sex. According to the macroscopic appearance, joints samples were classified as normal (n = 16), or altered (n = 16). Both the normal synovial membranes and the altered were grouped into 4 sets of 4 samples each. In the synovial fluid and in each of these sets the concentration of proteins was measured. The GST activity was measured in the homogenized, cytosolic and microsomal fractions. Also, values of Kmapp and Vmaxapp were estimated for each of the fractions in order to characterize the enzymatic activity. The results show that the GST activity is present in all analyzed fractions. Values of Vmax and Vmax/Km turned out to be significantly lower in the altered samples when compared to the normal ones. Moreover, the GST affinity for their substrates decreased significantly. This result can be explained by modification of chemical groups of the oxidative stress-induced enzyme that undergo altered samples. Alternatively, the expression of enzymes with different kinetic parameters (isoenzymes) could account for the difference between normal and altered samples
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