188,859 research outputs found
56-dr.-sandhya-tiwari.pdf
No full text The explosion of approaches and modules is a prominent characteristic of contemporaryEnglish as Second Language and English as Foreign Language teaching. It symbolizes the strength and scope of the profession. Theory is an essential ingredient in practice that guides the way in which language practitioners opine and approach Teaching Learning process. Theory helps to predict, explain and assess situations and possibilities, and provides a rationale to react and intervene language acquisition process. It aids in identifying the feasible approaches have been introduced, experimented and understood. Methods are the specific techniques and approaches that are adopted to implement to accomplish tasks and reach specific goals. Theories often inform of the type of method that is most appropriate for use. It is important that the learners and teachers acknowledge and understand their theoretical framework, rather than just practice from assumptions and beliefs that are guided by their personal or professional experiences and not necessarily from established and researched theories. In certain situations ELT exponents, will put the learners into uncertainty and risk by practicing from assumptions and beliefs versus established theories of the profession. </p
Building a Small and Informative Phylogenetic Supertree
No full textWe combine two fundamental, previously studied optimization problems related to the construction of phylogenetic trees called maximum rooted triplets consistency (MAXRTC) and minimally resolved supertree (MINRS) into a new problem, which we call q-maximum rooted triplets consistency (q-MAXRTC). The input to our new problem is a set R of resolved triplets (rooted, binary phylogenetic trees with three leaves each) and the objective is to find a phylogenetic tree with exactly q internal nodes that contains the largest possible number of triplets from R. We first prove that q-MAXRTC is NP-hard even to approximate within a constant ratio for every fixed q >= 2, and then develop various polynomial-time approximation algorithms for different values of q. Next, we show experimentally that representing a phylogenetic tree by one having much fewer nodes typically does not destroy too much triplet branching information. As an extreme example, we show that allowing only nine internal nodes is still sufficient to capture on average 80% of the rooted triplets from some recently published trees, each having between 760 and 3081 internal nodes. Finally, to demonstrate the algorithmic advantage of using trees with few internal nodes, we propose a new algorithm for computing the rooted triplet distance between two phylogenetic trees over a leaf label set of size n that runs in O(q n) time, where q is the number of internal nodes in the smaller tree, and is therefore faster than the currently best algorithms for the problem (with O(n log n) time complexity [SODA 2013, ESA 2017]) whenever q = o(log n)
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Visible Light Induced Photocatalytic Activity of Polyaniline Modified TiO2 and Clay-TiO2 Composites
No full textSonochemical synthesis of Titania, Titania-Polyaniline, and Clay-Titania-Polyaniline composites were car-ried out. The composite systems were characterized by various physico-chemical techniques. Photocatalytic activity was tested selecting some common dyes as substrates. Composites exhibited higher activity for the degradation of dyes under visible light in most of the cases. © 2013 BCREC UNDIP. All rights reservedReceived: 15th May 2013; Revised: 1st September 2013; Accepted: 3rd October 2013[How to Cite: Sandhya, K.P., Haridas, S., Sugunan, S. (2013). Visible Light Induced Photocatalytic Activity of Polyaniline Modified TiO2 and Clay-TiO2 Composites. Bulletin of Chemical Reaction Engineering & Catalysis, 8 (2): 145-153. (doi:10.9767/bcrec.8.2.4949.145-153)][Permalink/DOI: http://dx.doi.org/10.9767/bcrec.8.2.4949.145-153]</p
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
A STUDY OF CHALLENGES AND OPPORTUNITIES OF WOMEN IN MANAGEMENT
No full text<p><span>Today India is a force in a global economy with the high demand for talent. A key source of talent is educated Indian women. While Indian corporations are not yet have fully recognized or not utilized this talent pool. The growing gender diversity in Indian managerial ranks now offers a pathway for change in Indian women. While change is slow for Indian women to gain executive positions, they have made change in management in a relatively short time. An attempt has been made in the present paper to try and understand challenges and opportunities of the women in the top management positions.<span> </span>Further, the thoughts of different women across the organizations in top management positions are highlighted in their own words. Through empirical research, this article brings out the factors hindering the growth of women in management. Strategies which can be adapted by the women to face the challenges are highlighted at the end.</span></p>
<p><strong><span>Key Words</span></strong><span>: Talent pool, Gender diversity, Challenges, Opportunities</span></p>
Emerging trends in agri-nanotechnology: fundamental and applied aspects/ editors: Harikesh B. Singh, Sandhya Mishra, Leonardo Fernandes Fraceto, and Renata de Lima.
No full textIncludes bibliographical references and index.This book provides a thorough analysis of the progressive journey in agriculture from green revolution to nano revolution, with recommendations of certain key points to be addressed in current and future agri-nanotechnology research, on the basis of recognized knowledge gaps. It is hoped that the current volume will serve as a reference book for students, scientists, professors, teachers and researchers who are involved in the study and research on the various aspects of agri-nanotechnology.Rewinding the History of Agriculture and Emergence of Nanotechnology in Agriculture / Sandhya Mishra, Leonardo Fernandes Fraceto, Xiaodong Yang and Harikesh B. Singh -- Use of Nanomaterials in Agriculture: Potential Benefits and Challenges / Daiana Silva Ávila, Solange Cristina Garcia, Marcelo Dutra Arbo, Jessica Nardi and Maurício Tavares Jacques -- Green Nanotechnology for Enhanced Productivity in Agriculture / Kelvii Wei Guo -- Nanonutrient from Fungal Protein: Future Prospects on Crop Production / J.C. Tarafdar and Indira Rathore -- Multifarious Applications of Nanotechnology for Enhanced Productivity in Agriculture / K.S. Subramanian, K. Raja and S. Marimuthu -- Different Methods of Nanoparticle Synthesis and Their Comparative Agricultural Applications / Kunzes Dolma -- Nanotoxicity to Agroecosystem: Impact on Soil and Agriculture / Mahendra Rai, Aniket Gade, Avinash P. Ingle, Indarchand Gupta, Raksha Pandit and Carolina Alves dos Santos -- Factors Affecting the Fate, Transport, Bioavailability and Toxicity of Nanoparticles in the Agroecosystem / Sudheer K. Yadav, Jai Singh Patel, Gagan Kumar, Arpan Mukherjee, Anupam Maharshi, Birinchi K. Sarma, Surendra Singh and Harikesh B. Singh -- Nanotechnology: Comprehensive Understanding of Interaction, Toxicity and the Fate of Biosynthesized Nanoparticles in the Agroecosystem / Rahul Singh Rajput, Jyoti Singh, Prachi Singh, Manoj Kumar Chitara, Ratul Moni Ram, Sandhya Mishra and Harikesh B. Singh -- Global Market of Nanomaterials and Colloidal Formulations for Agriculture: An Overview / Estefânia V.R. Campos, Jhones L. de Oliveira, Leonardo Fernandes Fraceto and Renato Grillo -- The Responsible Development of Nanoproducts: Lessons from the Past / Ankit Srivastava and Arohi Srivastava -- Nanotechnology Application and Emergence in Agriculture Semih Otles and Buket Yalcin Sahyar -- Positive and Negative Effects of Nanotechnology / Amira S. Soliman -- Vanguard Nano(bio)sensor Technologies Fostering the Renaissance of Agriculture / Amina Antonacci, Fabiana Arduini and Viviana Scognamiglio -- Current Trends and Future Priorities of Nanofertilizers / Carolina Castro Bueno -- Biosafety and Regulatory Aspects of Nanotechnology in Agriculture and Food / Akansha Jain, Harikesh B. Singh and Sampa Das -- Implication of Nanotechnology for the Treatment of Water and Air Pollution / R.K. Chaturvedi -- Role of Nanotechnology in Insect Pest Management / Deepika Chauhan, N.N. Singh and Vijay Kumar Mishra.1 online resource (xix, 302 pages
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