Dark matter     

Bikram Phookun  Biman Nath 《Resonance》2005,10(12):76-82

In Part I of this article we learnt that there are compelling evidences from dynamics of spiral galaxies, like our own, that there must be non-luminous matter in them. In this second part we will see that even clusters of galaxies must harbour dark matter. As if this was not enough, it turns out that if our knowledge of the universe is not completely wrong, then the universe as a whole has to contain dark matter and that it must be of some exotic type.  相似文献   

Use of IT in university libraries of Punjab,Chandigarh and Himachal Pradesh: A comparative study     

M. Masoom Raza  Amar Nath 《International Information and Library Review》2013,45(3-4):211-227

This paper is designed to measure the use of Information Technology (IT) in the university libraries of Punjab, Himachal Pradesh and Chandigarh with an ulterior objective to establish some co-relation between quality in libraries and use of IT. The paper highlights the use of hardware and software facilities in university libraries. It also highlights the access of networks, information services and barriers in IT applications. A survey conducted on four university libraries, namely Panjab University library, Chandigarh; Himachal Pradesh University, Shimla; Punjabi university Library, Patiala; and Guru Nanak Dev University Library, Amritsar found that only Panjab University Library, Chandigarh and GND university library, Amritsar have provided computerised access to in-house databases. The findings presented are based on a survey conducted with the help of questionnaires, interview and observation methods. Library literature reveals that quality depends on merging print culture with digital culture but the result of this survey confirm that print culture is still dominating in university libraries of this region.  相似文献   

A Structured Approach to Honours Undergraduate Research Course, Evaluation Rubrics and Assessment     

Amar Khoukhi 《Journal of Science Education and Technology》2013,22(5):630-650

This paper presents a new approach to the Honours Undergraduate Research Course design and implementation. The course design process, assessment and evaluation rubrics are provided. Lessons learned and the experience of the faced challenges and opportunities for two cohort offerings of the course during the winter terms of 2011 and 2012 are highlighted. Assessments show that major benefits include increasing interaction with the faculty and increasing intellectual maturity, skills, knowledge and confidence for the students and for the faculty, the furthering of research projects by the participation of undergraduate students. The course can serve as a model that can be easily adapted for use across the disciplines of science, technology, engineering and mathematics.  相似文献   

Investigating the use and effectiveness of diverse types of materials in the delivery and support of lab sessions for multimedia subjects and students     

Emmanuel Tsekleves  Amar Aggoun  John Cosmas 《British journal of educational technology : journal of the Council for Educational Technology》2013,44(5):857-868

This research study explores the use of different lab material, investigating which types of materials contribute the most to the delivery and support of laboratory (lab) sessions to design, skill‐based and technical courses in higher education in the UK. A qualitative research methodology was employed for this investigation and included both key stakeholders in academia, including 75 students and 12 tutors. An investigation was also conducted tracking student activity on the university's e‐learning facility (U‐link). Our key findings indicate that overall electronic material is considered the most effective type of material for the delivery of a lab session. This is followed by print, video and lastly audio material according to student responses and video, print and audio material according to tutor responses. Student and tutor responses varied per individual module/subject area. Video material was regarded by students and tutors as the most effective type for the delivery of skill‐based lab sessions and generally for independent learning, and electronic material was regarded as the most effective type for the delivery of technical and design lab sessions. Lastly, student tracking revealed that the introduction of video lab material in two modules increased the average time spent by students on U‐link by 58% for the technical module and 97% for the skill‐based module respectively.  相似文献   

Hubble’s menagerie of galaxies     

Biman Nath 《Resonance》2009,14(3):226-235

Soon after the discovery that we live in a separate galaxy and that there are many other galaxies in the universe, Hubble designed a classification scheme of galaxies based on their appearances. It was such a robust scheme that it continues to be one of the basic tools of modern astronomy, and motivates astronomers to look for connections between different types of galaxies.  相似文献   

Study of oxidative stress in obsessive compulsive disorder in response to treatment with Fluoxetine     

Sutirtha Chakraborty  Anindya Dasgupta  Harendra Nath Das  Om Prakash Singh  Asok Kumar Mandal  Nikhiles Mandal 《Indian journal of clinical biochemistry : IJCB》2009,24(2):194-197

Oxidative stress has been found to play important role in several neuropsychiatric diseases including Obsessive Compulsive Disorder. A longitudinal case control study was conducted to evaluate the oxidative stress in 30 newly diagnosed obsessive compulsive disorder patients and same number of control patients. Serum thiobarbituric acid reacting substances, plasma ascorbate were assessed to evaluate oxidative stress and Yale Brown obsessive compulsive scale for disease severity before and after treatment with Fluoxetine at the average dosage of 40 mg/day. Improvement in Yale Brown obsessive compulsive scale score by about 43% after 12 weeks treatment was associated with significantly decreased thiobarbituric acid reacting substances and increased plasma ascorbate values (p < 0.05). The newly diagnosed obsessive compulsive disorder patients had higher serum thiobarbituric acid reacting substances as well as a lower plasma ascorbate levels than the control population. Thus, the present study suggested a significant role of oxidative stress in obsessive compulsive disorder and showed that a successful treatment with Fluoxetine not only improves the clinical scenario but also reduces the oxidative stress that may further improve the prognosis of the disease.  相似文献   

Mutually supportive or trade-offs: An analysis of competitive priorities in the emerging economy of India     

Ravi Kathuria  Narinder Nath Kathuria  Abhishek Kathuria 《The Journal of High Technology Management Research》2018,29(2):227-236

To refine the theories of operations strategy, we need research from all different situational contexts, including different countries—both developing and developed. There have been many studies, including some replications, done in various parts of the world to further the debate on whether competitive priorities are mutually supportive or if they present potential trade-offs, but hardly any from a rapidly growing economy, such as India. This study is a significant attempt in that direction. After a thorough review of the literature, a set of hypotheses is introduced to test whether Indian manufacturers view competitive priorities as mutually supportive or trade-offs. The data from over 150 high-ranking individuals from over 75 manufacturers in India is used to test the hypotheses by way of cluster analysis and ANOVA. The resultant taxonomy reveals patterns that uniquely represent Indian manufacturers' view of the competitive priorities, namely quality, flexibility, delivery and price. The study findings have significant managerial implications, both for India and other developing as well as developed economies. The taxonomy will serve to gauge India's manufacturers' role in the world. From a researcher's perspective, this study makes a significant contribution to theory development, furthers our understanding of the strategic role of operations, moves forward the ongoing debate on the topic of trade-offs or complementarity, and paves the way for future studies in this topical area.  相似文献   

Biochemical Profile of Nonalcoholic Fatty Liver Disease Patients in Eastern India with Histopathological Correlation     

Manorama Swain  Preetam Nath  Prasant Kumar Parida  Jimmy Narayan  Pradeep Kumar Padhi  Girish Kumar Pati  Ayaskanta Singh  Bijay Misra  Debasis Misra  Sanjib Kumar Kar  Manas Kumar Panigrahi  Chudamani Meher  Omprakash Agrawal  Niranjan Rout  Kaumudee Pattnaik  Pallavi Bhuyan  Pramila Kumari Mishra  Shivaram Prasad Singh 《Indian journal of clinical biochemistry : IJCB》2017,32(3):306-314

Aminotransferase assay is often used as a screening test as well as an endpoint for resolution of disease in nonalcoholic fatty liver disease (NAFLD). Aim of the study was to evaluate the relationship of transaminase level with metabolic variables and histology in NAFLD. Single center observational study was conducted in a gastroenterology clinic at Cuttack in coastal Odisha. Subjects were consecutive patients presenting with functional bowel disease and undergoing abdominal sonography. All participants were evaluated for the presence of metabolic syndrome (MS), insulin resistance, liver function test and lipid profile. Various parameters were compared between NAFLD subjects and controls. 53.5 % of NAFLD had normal serum transaminases, whereas 20.8 % of healthy controls had transaminitis. NAFLD patients had significantly higher BMI, fasting plasma glucose, serum transaminases, serum triglycerides, serum insulin and homeostatic model assessment (HOMA) IR than controls. NAFLD patients who had transaminitis had significantly higher incidence of MS and higher mean HOMA IR than those without. There was no significant difference in histopathological features between NAFLD with and without transaminitis. To conclude, over half of NAFLD subjects do not have transaminitis while transaminitis is present in a fifth of healthy people without fatty liver. Hence serum transaminase should not be used as screening test for NAFLD. NAFLD patients with transaminitis had a higher incidence of MS and insulin resistance than those without. However, there was no significant difference in histopathological features between these two groups.  相似文献   

Jantar Mantar: Observatories of Jai Singh (with pop-up pages)     

Biman Nath 《Resonance》2016,21(10):949-950

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To move or not to move     

Biman Nath 《Resonance》2001,6(8):93-95

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