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971.
Heikki Rusko 《Journal of sports sciences》2013,31(3):273-286
The influences of growth, training and various training methods were investigated by analysing long‐term training effects in young cross‐country and biathlon skiers (n = 129). Some athletes (n = 49) were studied six times in three years and some at least once a year during a four year period (n = 48). During three summer training periods skiers emphasized either intensive training or distance training or continued to train normally. The results indicated that maximal oxygen uptake (VO2 max) and heart volume increased between 15 and 20 years of age and the most significant changes in heart volume were observed between 16 and 18 years of age. International level skiers were able to increase their VO2 max and heart volume even after 20 years of age. Anaerobic threshold (AT, ml kg‐1 min‐1) increased like VO2 max but when expressed as a percentage of VO2 max, the AT was similar in every age group over 16 years of age. Intensive training at the intensity of anaerobic threshold or higher was observed to be most effective in producing improvements in VO2 max. Low‐intensity distance training was more effective in producing improvements in anaerobic threshold. 相似文献
972.
Venkateshwari A Sri Manjari K Krishnaveni D Nallari P Vidyasagar A Jyothy A 《Indian journal of clinical biochemistry : IJCB》2011,26(2):136-139
Pancreatic fibrosis is a key pathological feature in the etiology of chronic pancreatitis that leads to obliteration of exocrine
and endocrine pancreatic tissues and its replacement by fibrous tissue resulting in clinical manifestations. Matrix metalloproteinase
9 is a member of the MMP family that is also known as gelatinase B, degrades type IV collagen of extracellular matrix and
basal membrane. The present study is aimed at evaluating the clinical significance of plasma concentration of MMP-9 in chronic
pancreatitis. The samples were obtained from 112 chronic pancreatitis patients and an equal number of age and sex matched
healthy controls. MMP-9 levels were quantitatively measured by ELISA assay. Statistical analysis was applied to test the significance
of results. The present study revealed a significant increase of plasma MMP 9 levels in chronic pancreatitis patients compared
to control subjects. Elevated levels were also observed in all the patient groups compared to control subjects with regard
to sex, age, addictions etc. MMP-9 degrades the type IV collagens in normal basement membrane, which in turn activates the
pancreatic stellate cells which promote the development of pancreatitic fibrosis. Thus, elevated plasma levels of MMP-9 may
act as a susceptibility factor for the development of chronic pancreatitis. 相似文献
973.
Diya Hu 《Frontiers of Education in China》2012,7(2):169-194
Many traditional ethnic cultural items are being endangered in China. Using the Dongba dance culture of the Naxi people as a case study, this paper seeks to analyze and interpret the endangerment of culture from an educational perspective, based on an analysis of the interaction between the cultural transmission mechanism of Dongba dance and the formal schooling of the Naxi people in Lijiang, China. By describing and comparing the traditional and current forms of Dongba dance transmission, the paper shows how the institution of formal education competes with older modes of cultural transmission, resulting in the endangerment of Dongba dance as a living cultural relic. So, in order to truly realize and improve the function of education in transmitting cultural heritage and to guarantee educational equity, we should prioritize sophisticated ethnic minority cultural items in the assessment and selection phases of education, grant them institutional cultural capital, and put greater effort into developing an appropriate school-based curriculum so that ethnic minority culture may be transmitted and inherited via formal schooling. 相似文献
974.
Suman B. Sharma Seema Garg Abhinav Veerwal Sridhar Dwivedi 《Indian journal of clinical biochemistry : IJCB》2008,23(4):334-336
Premature coronary artery disease (CAD) is common in India. We, therefore, studied oxidative stress, dyslipidemia, and high
sensitivity-C reactive protein (hs-CRP) levels in young CAD patients. Present study consisted of male CAD patients below 40
years and age and sex matched healthy controls (n=30 each). Fasting blood samples were analyzed for serum lipid profile, malondialdehyde,
antioxidant enzymes and hs-CRP levels. Dyslipidemia was observed in 90% of the young CAD patients, of which 72.2% showed increased
serum triglycerides and decreased HDL-cholesterol. LDL-cholesterol levels were high in 77.8%. Serum malondialdehyde and hs-CRP
levels were increased significantly (p<0.0001) as compared to controls. hs-CRP levels were in high risk range in all the young
patients. However, glutathione peroxidase activity was reduced significantly (p<0.05). Our data suggests that elevated hs-CRP
levels along with dyslipidemia and oxidative stress adds to the predictive value of premature CAD in young Indians. 相似文献
975.
Michelle Caswell Joyce Gabiola Jimmy Zavala Gracen Brilmyer Marika Cifor 《Archival Science》2018,18(1):73-93
Although much has been written about formal archival spaces, little scholarship has addressed the physical spaces of community archives. This paper asks: How do community members imagine the physical spaces that steward identity-based community archives? Based on focus groups with more than 54 community archives users at five different community archives sites across Southern California, this paper examines how members of marginalized communities conceive of the physical space inhabited by community archives representing their communities. The sites explored range from a prominent location on a university campus, to storefronts, strip malls, and small cinderblock buildings. Yet across sites, users spoke about community archives spaces as symbolic and affectively moving locations. Many users described their community archives site as a “home-away-from-home,” marked by intergenerational dialog and a profound sense of belonging. For other users, community archives sites were described as “politically generative spaces” which foster dialog and debate about identity, representation, and activism and enable the community to envision its future. And yet, while the very existence of community archives is political, many participants felt that the full political potential of these sites is not yet realized. By listening to the voices of the communities represented and served by community archives, our research both indicates that a shift is warranted in archival metaphors of space and reveals how community archives are personally and politically transformative spaces for the communities they represent and serve. 相似文献
976.
The growth of archival studies programs has prompted archival scholars to establish an international network for supporting collaborative research, curriculum development, and pedagogy. Doctoral education is key to the sustainability of such programs and the continuation of the network over time. We carried out longitudinal research to survey the population of doctoral students attending one or more Archival Education and Research Institutes (AERI), an annual meeting first held in 2009. Building on prior research on graduate archival education, we gathered demographic and qualitative data about doctoral students specializing in archival studies who are based in several countries including the USA. We sought to assess attendee motivations, guide conference planning, and help advance overall AERI objectives. Our study provides a baseline understanding of the disciplinary backgrounds, research directions, and specific professional development activities that doctoral students in archival studies pursued around the globe from 2013 to 2015. This paper argues that doctoral education should continue to be a particular subject of archival research and indicates how archival students’ range of academic interests is diversifying and strengthening the scholarly community. 相似文献
977.
Tania Smith 《Innovative Higher Education》2008,33(1):49-63
This article presents research and narratives on the integration of course-based peer learning assistants into seven courses.
A new curricular peer mentoring program was piloted in the 2005–2006 academic year in an interdisciplinary liberal arts college
at a large Canadian research university. Undergraduate students enrolled in a practicum course which supported their learning
while they collaborated with the “host instructor” of the course in which they served as peer mentor. Assistants’ roles varied
and included individual tutoring, help via email, online discussion facilitation, small group facilitation, in-class presentation
and discussion facilitation, and extracurricular study groups. Their integration into scheduled class activities resulted
in participating students’ perception of enhanced learning. Data included peer mentors’ assignments, host instructor feedback,
and student surveys.
Tania Smith is an Assistant Professor of Communications Studies in the Faculty of Communication at the University of Calgary, Canada. She received her Ph.D. in English in the Rhetoric and Composition program from Ohio State University and teaches rhetoric and professional communication. She researches the development of communities and individuals in advanced informal or experiential education, inquiry based learning, community service learning, collaborative learning and mentoring, and the rhetorical formation of eighteenth-century British women writers. She can be contacted at smit@ucalgary.ca Faculty of Communication and Culture, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, Canada. 相似文献
Tania SmithEmail: |
Tania Smith is an Assistant Professor of Communications Studies in the Faculty of Communication at the University of Calgary, Canada. She received her Ph.D. in English in the Rhetoric and Composition program from Ohio State University and teaches rhetoric and professional communication. She researches the development of communities and individuals in advanced informal or experiential education, inquiry based learning, community service learning, collaborative learning and mentoring, and the rhetorical formation of eighteenth-century British women writers. She can be contacted at smit@ucalgary.ca Faculty of Communication and Culture, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, Canada. 相似文献
978.
Seema Bhargava Annsh Bhandari Sangeeta Choudhury 《Indian journal of clinical biochemistry : IJCB》2018,33(1):16-20
A high circulating concentration of the non proteinogenic amino acid homocysteine has been implicated as a risk factor for Alzheimer’s Disease and its prodromal stage, mild cognitive impairement. Furthermore, hyperhomocysteinaemia has been directly attributed to a deficiency in vitamins B12, folate, and B6. Several studies have demonstrated decrease in progression of mild cognitive impairement to Alzheimer’s Disease, and some have even shown an improvement in cognition after vitamin supplements with B12 and folate. Plausible mechanisms linking hyperhomocysteinaemia to Alzheimer’s and cognitive impairement have been hypothesized and demonstrated in hyperhomocysteinemic mice models. However, some studies have not elucidated any benefit of vitamin supplements in subjects with cognitive impairment. Hence, multicentric clinical studies need to be conducted to substantiate the mechanisms of neuronal degeneration due to hyperhomocysteinaemia and to demonstrate the beneficial effect of folate, B6 and B12 supplements on cognition. 相似文献
979.
980.