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Farhana Zahir Shameem J Rizvi Soghra K Haq Rizwan H Khan 《Indian journal of clinical biochemistry : IJCB》2006,21(2):149-152
Mercury pollution and acute neurotoxicity of mercury is well known. The recent reports suggest the adverse effect of low dose
mercury, though the available literature is still silent on its mechanism. This study was therefore undertaken to probe the
effect of low dose methyl mercury induced heavy metal toxicity on free radical stress and its impact on behaviour of male
albino rats. Male albino rats were exposed to 1 mg/kg body wt of methylmercury chloride for seven days, on day 8 they were
tested for motor and memory functions. They were sacrificed later for biochemical estimations for rate of lipid peroxidation,
nucleic acids, proteins in cerebrum, cerebellum and brain stem. There was an increase in the rate of lipid peroxidation showing
methyl mercury induced free radical stress. The motor and memory functions demonstrated a clear decline, besides there was
a lowering in the levels of nucleic acids and proteins as compared to controls. The results are important in view of recent
reports that methyl mercury induced free radical stress results in early ageing and may serve as an initiating factor more
specifically for neurodegenerative disorders like Alzeihemer's disease and dementias. The current findings support the notion
that incorporating dietary antioxidants like curcumin, ascorbic acid and α-tocopherol in routine diet from early age may help
combat the risk of developing such disorders in ensuing years. 相似文献
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Muhammad Ali Asadullah Sumaira Mirza Muhammad Zia Ul Haq Tahir Yaqoob Sajid Hussain 《Higher Education Quarterly》2023,77(1):102-120
Fresh PhD recipients are experiencing restricted career opportunities yet the enrolment of PhD Scholars is increasing rapidly. Perhaps, doctoral students lack conscious educational decision-making. Building on such a perspective of doctoral students' unconscious educational choices, we explored their educational choices throughout their life trajectory. We started with a qualitative inquiry of 18 different PhD scholars in Pakistan. The findings helped us in developing a measure to determine the extent of herding in doctoral students' educational decisions. We ‘benefitted from’ this opportunity and validated the scale in two separate quantitative inquiries for conducting an exploratory factor analysis and confirmatory factor analysis. The study concluded a 3-dimensional scale (consisting of 15-items) for measuring ‘herding in educational decisions’. The study offers certain implications for conscious educational decisions. 相似文献
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The purpose of this study is to assess the status of public libraries located in Rawalpindi District, Pakistan, in terms of administrative setup, collection, staff, resources, and services. The article is derived from evidence obtained through a questionnaire-based survey carried out in December 2013. This survey was conducted for the preparation of “Directory of Public Library Project” a joint venture of Punjab Library Foundation and Department of Library and Information Science, University of the Punjab. The survey found eleven public libraries in the District of Rawalpindi. Only three of these have professional staff. Overall, libraries have poor and outdated book collections that are not properly classified and cataloged. Information Communication Technology infrastructure exists in libraries with some exceptions. Most of the libraries are facing constraints (e.g., low number of hours, too small in size, and too many users for size of collections) that result in inadequate services. Most of the libraries are facing similar problems, which are being faced by other public libraries of Pakistan (e.g., shortage of professional staff, lack of modern facilities, and insufficient funds). Practical recommendations are made at the end of study. 相似文献
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Drawing Pedagogies in Higher Education: the Learning Impact of a Collaborative Cross‐disciplinary Drawing Course 
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下载免费PDF全文 Philippa Lyon Patrick Letschka Tom Ainsworth Inam Haq 《The International Journal of Art & Design Education》2018,37(2):221-232
Drawing is taught in higher education across art and design but also, increasingly, in medical education, with a variety of aims and approaches. It is argued that there is a need, in both these disciplinary domains, to make more explicit the underpinning pedagogical approach to drawing and the impact that different approaches have on learning. The research described in this article focuses on an optional drawing course for undergraduate craft students and medical students. The course is run by the College of Arts and Humanities at a UK university and has a thematic focus on the human body. This qualitative case study sets out, in the context of selected theory about the teaching and learning of drawing, to explore what the learning impact of a particular collaborative model of teaching drawing was on a cross‐disciplinary student group. Findings included, with reference to Riley's framework of drawing pedagogies, that a range of philosophical and pedagogical ideas about drawing were blended from the teaching perspective in a way that enabled students from distinct disciplinary backgrounds to engage and learn. A shift was observed in students’ perceptions of drawing, with both sets of students questioning previously held assumptions about the use and value of drawing within their learning. Life drawing and anatomy laboratory drawing, in particular, provoked deep and challenging reflections about different cultural conceptions of the human body and the practice of collaborative drawing, with dialogic reflection, enabling insights to be developed into different disciplinary epistemologies. 相似文献
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Ikram-ul- Haq Asif Ali Khan Iqrar Ahmad Khan Muhammad Abubakkar Azmat 《Journal of Zhejiang University. Science. B》2012,13(7):533-544
The okra germplasm was screened for salinity tolerance at the seedling stage and during plant ontogeny. Substantial variation existed in okra for salinity tolerance at the seedling stage. An 80 mmol/L NaCl concentration was suitable for discriminating tolerant and non-tolerant okra genotypes. The pooled ranking of the genotypes, based on individual rankings for each trait (root and shoot length, germination percentage, and relative Na+ and K+) in individual NaCl concentrations, was effective for selecting tolerant genotypes. Genotypes selected at the seedling stage maintained their tolerance to NaCl during plant ontogeny, suggesting that screening of the germplasm entries and advanced breeding materials for salt tolerance at the seedling stage is effective. Among 39 okra genotypes, five were identified as the most tolerant genotypes and showed potential for use in breeding programs that focus on the development of salt-tolerant, high-yield okra cultivars. 相似文献
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