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1.
Creating value in ecosystems: Crossing the chasm between knowledge and business ecosystems 总被引：1，自引：0，他引：1
Policy makers take initiatives to stimulate knowledge ecosystems in technology hotspots. It is implicitly assumed that these ecosystems will lead to value networks through which the participating companies can realize a competitive advantage. Value networks refer to business ecosystems where the value proposition is offered by a group of companies which are mutually complementary. The strategy literature suggests that business ecosystems lead to competitive advantages for each of the partners in the ecosystem. Based on a unique hand-collected database of 138 innovative start-ups in the region of Flanders, we analyze the knowledge and business ecosystem and the financial support network. We find that the knowledge ecosystem is well structured and concentrated around a number of central actors while the business ecosystem is almost non-existent at the local level. Further, we find that the financial support network is almost 100% publicly backed and fails to bridge the knowledge and business ecosystem. The implications for policy makers who tend to focus on the development of local ecosystems are discussed. 相似文献
2.
Ritu Sharma Mridula Mahajan Ravi Kant 《Indian journal of clinical biochemistry : IJCB》2004,19(1):10-13
Serum total lipids (cholesterol and triglyceride), lipoproteins (VLDL, LDL and HDL) and Apolipoprotein-B levels of normal
healthy individuals (n=25) and coronary artery disease patients (n=25) were estimated. The objective of the present study
was to ascertain the role of apo-B in causation and inheritance of coronary artery disease. It was observed that on an average
serum total cholesterol and triglyceride more than 200 mg/dl bring the individuals to a risk of coronary artery disease (CAD)
irrespective of the age. CAD patients achieved this value at an early age (35–45 years). Similarly VLDL and LDL levels were
found to be significantly raised in CAD patients when compared to that of age matched normal individuals, with patients achieving
risk values at an early age. HDL levels were found to be significantly lower in CAD patients as compared to normal individuals.
Serum apo-B levels were significantly raised in CAD patients as compared to age matched normal individuals. Patients with
positive family history of CAD had raised serum apo-B levels than those having negative family history. A positive coefficient
of correlation was observed between serum apo-B and LDL levels suggesting that more the number of Apo-B particles, more will
be the synthesis of atherogenic particle (LDL). Patients with negative family history had serum apo-B levels closer to those
of normal individuals and in these individuals HDL levels were found to be significantly lowered, suggesting that loss of
scavenger role of HDL could be the risk factor responsible for the causation of CAD in these patients, with negative family
history of coronary artery disease. 相似文献
3.
Renuka Mahajan J. S. Sodhi Vishal Mahajan 《Education and Information Technologies》2016,21(1):123-148
An important research area in education and technology is how the learners use e-learning. By exploring the various factors and relationships between them, we can get an insight into the learners’ behaviors for delivering tailored e-content required by them. Although many tools exist to record detailed navigational activities, they don’t explore the learners’ usage patterns for an adaptive e-learning site. The previous web log data analyses, done so far, have been very limited in their scope as they lack detailed empirical results on the learning technology usage. This paper discusses the detailed results of a case study of web data mining in a specific e-learning application. The main objective of this study is to conduct research on usability and effectiveness of the e-content by analyzing the web log. For this, a suitable data set was retrieved from raw web log records, to which various web mining & statistical techniques could be applied. We have evaluated different features of e-content that can lead to better learning outcomes for the learners, by understanding their navigational behaviors, their interaction with system and their area of interest. We found, for example, what sequence of topics were the most liked and the least liked by the learners; we also found that these patterns, lead us to hypothesize, the correlation and regression analysis between the average time, test score and total attempts. 相似文献
4.
This study investigated the relationship between both receptive and expressive prosody and each of three reading outcomes: accuracy of reading aloud words, accuracy of reading aloud nonwords, and comprehension. Participants were 63 children aged 7 to 12 years. To assess prosody, we used the Profiling Elements of Prosody in Speech Communication (PEPS-C; Peppé & McCann, 2003). Results revealed that certain subtests of the PEPS-C predicted a substantial proportion of variance across reading outcomes, even after age and segmental phonological awareness have been considered. In fact, our findings suggest that the PEPS-C compares favourably with a well-established test of segmental phonological awareness, the Comprehensive Test of Phonological Processing (CTOPP; Wagner, Torgesen, & Rashotte, 1999), in terms of its power to predict variability in children’s reading. 相似文献
5.
Hyponatremia is a common disorder in elderly and can result in changes in cognition, seizures, coma or even respiratory arrest if not recognised and treated. Syndrome of inappropriate anti diuretic hormone secretion (SIADH) is the most common cause of hyponatremia in elderly hospitalised patients and in most cases the etiology cannot be determined on routine investigations. We present a 76 year old male with symptomatic hyponatremia who had chronic urinary retention due to a urethral stricture. His sodium levels improved with catheterisation and worsened again after the catheter was removed. This supports the hypothesis that urinary retention and bladder distension can stimulate ADH release from the posterior pituitary, producing a picture similar to SIADH. 相似文献
6.
Besides highlighting the uses and problems related to social networking, the paper reveals its impact on the linguistically and culturally rich India. It also describes some of the top Indian social networking sites and pinpoints some instances where people have used such sites to raise their voice against the bad elements harming their culture. 相似文献
7.
Mahajan RS Veerpathran A Dakshinamoorthy G Sharma RD Goswami K Reddy MV 《Indian journal of clinical biochemistry : IJCB》2010,25(4):362-366
WHO-Tropical Disease Research scheme highlighted the need for development of new anti-filarial drugs. Certain antibiotics
have recently been found effective against Wolbachia, co-existing symbiotically with filarial parasites. Inflammatory response
entails oxidative mechanism to educe direct anti-microbial effect. In the present study microfilariae were maintained in vitro
in medium supplemented with varying concentrations of tetracycline, doxycycline (20–100 μg/ml) or ciprofloxacin (50–250 μg/ml)
separately to find out any involvement of oxidative mechanism in the anti-filarial effect of these antibiotics. Loss of motility
of the microfilariae was measured after 48 h and correlated with the levels of MDA, nitric oxide and protein-carbonylation.
Significant loss of microfilarial motility was recorded with increasing concentration of tetracycline and doxycycline but
with ciprofloxacin the effect was not marked. Agents with high antifilarial activity revealed significant association with
oxidative parameters in a dose dependent manner. The result suggests that oxidative effect might be exploited to design novel
antifilarial drug candidate. 相似文献
8.
Bakhtaver S. Mahajan Sugra Chunawala 《International Journal of Science Education》2013,35(11):1155-1168
Homi Bhabha Centre for Science Education (HBCSE) at Mumbai, India, undertook a three year Health Education Programme aimed at finding out students' understanding of different aspects of health and the manner in which they understand the spread of communicable diseases. The first part of this project is presented in this paper. The results indicate that students have a 'poor'/'unsatisfactory' understanding of several aspects- nutrition, social and genetic factors- which affect health. The work carried out on students from different socio-economic backgrounds highlights the poor performance of tribal students coming from remote areas. Considering the magnitude of health problems in India, suggestions regarding science education are put forward, including capitalizing on the 'good' understanding of health issues exhibited by female students. 相似文献
9.
Preeti Mahajan 《International Information and Library Review》2013,45(3):129-136
Besides highlighting the uses and problems related to social networking, the paper reveals its impact on the linguistically and culturally rich India. It also describes some of the top Indian social networking sites and pinpoints some instances where people have used such sites to raise their voice against the bad elements harming their culture. 相似文献
10.
Balkrishna E. Narkhede Rakesh D. Raut Bhushan T. Patil Subhash K. Mahajan 《Performance Improvement》2013,52(9):24-32
The importance of integrated information systems in large firms is widely accepted by academicians and practitioners. The need for information systems adoption has been proved beyond a doubt for large firms. Small and medium‐sized enterprises can also improve their performance by implementing modern information systems. This case study analyzes the benefits of information systems implementation by comparatively highlighting the performance of three small and medium‐sized enterprises with varied extent and nature of information systems in them. 相似文献