排序方式： 共有53条查询结果，搜索用时 46 毫秒
21.
Anatoly Oleksiyenko Pilar Mendoza Fredy Esteban Cárdenas Riaño Om Prakash Dwivedi Arif H. Kabir Aliya Kuzhabekova Muweesi Charles Vutha Ros Ielyzaveta Shchepetylnykova 《Higher Education Quarterly》2023,77(2):356-374
Campus crisis management remains an understudied topic in the context of COVID-affected higher education. In this paper, we contrasted the ability to tame the wicked problems brought by the pandemic of COVID-19 in private and public universities in Bangladesh, Cambodia, Colombia, India, Kazakhstan, Uganda, and Ukraine. The cross-country analysis and diversity of institutional types allowed us to consider a wide range of challenges faced by academic leaders and their institutions during the global pandemic. By drawing on institutional policy reviews and interviews with university administrators, we have examined tensions between the human and institutional agencies on these crisis-stricken campuses given differing institutional coupling, sizes, resources, and missions. The focus on agential co-dependencies and institutional coupling lays the ground for conceptualizing campus crisis management as a culturally specific construct in the context of higher education affected by the global pandemic. 相似文献
22.
Anuj Singla Inderpreet Singh Ahuja Amanpreet Singh Sethi 《The Journal of High Technology Management Research》2017,28(2):142-158
The main objective of study is to estimate and extract various significant Demand Pull (DP) practices influencing Sustainable Development in Indian manufacturing industries. The study critically examines the effectiveness of DP strategies in manufacturing enterprises. An extensive survey of 92 companies has been executed for this study, to identify improvements made by DP practices to achieve sustainable development in manufacturing industries. The companies in the survey include medium- and large-scale manufacturing enterprises. The correlations between various DP practices and sustainable development parameters are evaluated and validated using various numerical methods and tools. The focus of the paper is on the distinguishable contributions made by DP practices like stringent implementation of government regulations, transforming capabilities, unionized labor and customer attributes towards achieving sustainable development in manufacturing industries. The inter-relationships between different DP practices with sustainable development parameters have been evaluated, to efficiently manage the objectives of sustainability and growth. However, it is also acknowledged that manufacturing enterprises need to work more actively on managing certain practices of DP. In the present study the contributions of DP practices are investigated to accomplish sustainable development in manufacturing industries. Though, issue-wise independent examination can also be organized to compute the effectiveness of DP strategies towards achieving sustainable development and quality under specific orientations. The research gives priority to enhancement in planning among various DP practices and sustainable development indicators in the industries, to impart DP as an important practice to meet the challenges of competent markets worldwide. It has been exhibited from the observations that adequate DP strategies can efficiently contribute towards recognition of sustainable development to compete in the highly progressive global market. The results of various inter-relationships among DP practices and sustainable development parameters represent the effectiveness of DP practices for accomplishment of social as well as organizational objectives. The paper examines that DP practices are significant initiatives employed by the manufacturing organizations for performance improvement and sustainable development. The paper peeks into the study to find out DP issues that need to be assessed efficiently by companies to avail the benefits of sustainable development to meet the challenges posed by international markets. 相似文献
23.
Jai Prakash Tripathi Syed Abbas Gui-Quan Sun Debaldev Jana Cui-Hua Wang 《Journal of The Franklin Institute》2018,355(15):7466-7489
In this paper, we propose a diffusive prey-predator system with mutually interfering predator (Crowley–Martin functional response) and prey reserve. In particular, we develop and analyze both spatially homogeneous model based on ordinary differential equations and reaction-diffusion model. We mainly investigate the global existence and boundedness of positive solution, stability properties of homogeneous steady state, non-existence of non-constant positive steady state, conditions for Turing instability and Hopf bifurcation of the diffusive system analytically. Conventional stability properties of the non-spatial counterpart of the system are also studied. The analysis ensures that the prey reserve leaves stabilizing effect on the stability of temporal system. The prey reserve and diffusive parameters leave parallel impact on the stability of the spatio-temporal system. Furthermore, we illustrate the spatial patterns via numerical simulations, which show that the model dynamics exhibits diffusion controlled pattern formation by different interesting patterns. 相似文献
24.
Jyoti Sethi Sushma Sood Shashi Seth Anjana Talwar 《Indian journal of clinical biochemistry : IJCB》2004,19(2):152-155
Ocimum sanctum leaves have been traditionally used in treatment of diabetes mellitus. Dietary supplementation of fresh tulsi leaves in a
dose of 2 gm/kg BW for 30 days led to significant lowering of blood glucose levels in test group. Intake ofOcimum sanctum also led to significant increase in levels of superoxide dismutase, reduced glutathione and total thiols, but marked reduction
in peroxiodised lipid levels as compared to untreated control group. The leaves were found to possess both superoxide and
hydroxyl free radical scavenging action. The present observations establish the efficacy ofOcimum sanctum leaves in lowering blood glucose levels and antioxidant property appears to be predominantly responsible for hypoglycemic
effect. 相似文献
25.
VASHIST Sandeep Kumar KAUR Inderpreet BAJPAI Ram Prakash BHARADWAJ Lalit Mohan TEWARI Rupinder RAITERI Roberto 《Journal of Zhejiang University. Science. B》2006,7(9)
Electrical conductivity in biomolecules and other large polymeric systems has become an important topic of current research. Schlag et al.(2000a; 2000b) demonstrated that charge migration in proteins is highly efficient although the mechanistic origin is still debated and largely unknown even though various models have been proposed by Weinkauf et al.(1995; 1996; 1997). According to them, the charge transfer between amino acids takes place by hole hopping between local sites of lowest ionizati… 相似文献
26.
The objective of the present study was to evaluate hypolipidemic effect of methanolic extract of Celastrus paniculatus in experimentally induced hypercholesterolemic rats. Hypercholesterolemia was induced by feeding the animals with high fat
diet. Oral administration of methanolic seed extract (50%) of Celastrus paniculatus at the optimized dose of 65 mg/kg body weight, substantially reduced the plasma total cholesterol, triglycerides and LDL
cholesterol in comparison with induced hypercholesterolemic animal group and the results were comparable with the standard
hypocholesterolemic drug and almost similar to the control group. Atherogenic index and liver weight of treated animals also
showed significant decrease compared to the hypercholesterolemic animals. It substantially increased the HDL cholesterol level
as compared to control group. A significant increase in the activities of lipoprotein lipase and plasma LCAT enhanced hepatic
bile acid synthesis and thereby, increased degradation of cholesterol to neutral sterols. Furthermore, the activities of HMG-CoA
reductase, glucose 6-phosphate dehydrogenase and malate dehydrogenase were significantly reduced. Histological studies showed
less cholesterol deposits in the aorta of animals fed with seed extract of C. paniculatus compared to the induced hypercholesterolemic animals not given C. paniculatus supplement. 相似文献
27.
Liquid dielectrophoresis (L-DEP), when deployed at microscopic scales on top of hydrophobic surfaces, offers novel ways of rapid and automated manipulation of very small amounts of polar aqueous samples for microfluidic applications and development of laboratory-on-a-chip devices. In this article we highlight some of the more recent developments and applications of L-DEP in handling and processing of various types of aqueous samples and reagents of biological relevance including emulsions using such microchip based surface microfluidic (SMF) devices. We highlighted the utility of these devices for on-chip bioassays including nucleic acid analysis. Furthermore, the parallel sample processing capabilities of these SMF devices together with suitable on- or off-chip detection capabilities suggest numerous applications and utility in conducting automated multiplexed assays, a capability much sought after in the high throughput diagnostic and screening assays. 相似文献
28.
H. Ravi Kumar K. S. Devaraju B. M. Prakash S. Sampath Kumar S. V. Suresh Babu N. Ramachandraswamy H. P. Puttaraju 《Indian journal of clinical biochemistry : IJCB》2009,24(3):275-279
To establish/develop an assay method for measuring Ornithine Aminotransferase (EC.2.6.1.13) activity using rat brain mitochondria
as a source of enzyme in presence and absence of Pyridoxal Phosphate (PLP). The modified method, with the improved sensitivity,
is adopted for the assay of ornithine amino transferase activity in rat brain mitochondria. The enzyme activity was measured
at 620 nm, the study showed that reaction was optimum at 37°C for 30 minutes. The assay is sensitive enough to detect activity
at the order of nanomoles pyrroline-5-carboxylate/mg protein/minute and can be compared as an alternative to the radio isotopic
method which is more cumbersome and aminobenzaldehyde method which is less sensitive. The Km & Vmax shows maximum activity in the presence of Pyridoxal Phosphate (Coenzyme) concentration at 0.05mM when compared with absence
of Pyridoxal Phosphate as higher the concentration of Pyridoxal Phosphate affects the affinity of the enzyme to substrate.
The OAT activity in different tissues of the rat was also studied and highest activity was found in liver and kidney. 相似文献
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Objective： A series of 2-benzylideneaminonaphthothiazoles were designed and synthesized incorporating the lipophilic naphthalene ring to render them more capable of penetrating various biomembranes. Methods： Schiff bases were synthesized by the reaction of naphtha[1,2-d]thiazol-2-amine with various substituted aromatic aldehydes. 2-（2＇-Hydroxy）ben- zylideneaminonaphthothiazole was converted to its Co（Ⅱ）, Ni（Ⅱ） and Cu（Ⅱ） metal complexes upon treatment with metal salts in ethanol. All the compounds were evaluated for their antibacterial activities by paper disc diffusion method with Gram positive Staphylococcus aureus and Staphylococcus epidermidis and Gram negative Escherichia coli and Pseudomonas aeruginosa bacteria. The minimum inhibitory concentrations of all the Schiff bases and metal complexes were determined by agar streak dilution method. Results： All the compounds moderately inhibited the growth of Cram positive and Gram negative bacteria. In the present study among all Schiff bases 2-（2＇-hydroxy）benzylideneaminonaphthothiazole showed maximum inhibitory activity and among metal complexes Cu（Ⅱ） metal complex was found to be most potent. Conclusion： The results obtained validate the hypothesis that Schiff bases having substitution with halogens, hydroxyl group and nitro group at phenyl ring are required for the antibacterial activity while methoxy group at different positions in the aromatic ring has minimal role in the inhibitory activity. The results also indicated that the metal complexes are better antibacterial agents as compared to the Schiff bases. 相似文献