Miliˇcevi´c et al., in 2004, introduced topological indices known as Reformulated Zagreb indices,... more Miliˇcevi´c et al., in 2004, introduced topological indices known as Reformulated Zagreb indices, where they modified Zagreb indices using the edge-degree instead of vertex degree. In this paper, we present a simple approach to find the upper and lower bounds of the second reformulated Zagreb index, EM2(G), by using six graph operations/transformations. We prove that these operations significantly alter the value of reformulated Zagreb index. We apply these transformations and identify those graphs with cyclomatic number at most 3, namely trees, unicyclic, bicyclic and tricyclic graphs, which attain the upper and lower bounds of second reformulated Zagreb index for graphs.
The Symmetric division deg (SDD) index is a well-established valuable index in the analysis of qu... more The Symmetric division deg (SDD) index is a well-established valuable index in the analysis of quantitative structure-property and structure-activity relationships for molecular graphs. In this paper, we study the range of SDD-index for special classes of trees and unicyclic graphs. We present the first four lower bounds for SDD-index of trees and unicyclic graphs, which admit a perfect matching and find the subclasses of graphs that attain these bounds. Further, we also compute the upper bounds of SDD-index for the collection of molecular graphs, namely the trees and unicyclic graphs, each having maximum degree four and that admit a perfect matching.
CURRENT SCIENCE, VOL. 95, NO. 10, 25 NOVEMBER 2008 1388 *A report on International Forum on ‘Cons... more CURRENT SCIENCE, VOL. 95, NO. 10, 25 NOVEMBER 2008 1388 *A report on International Forum on ‘Conservation and Stewardship of Agricultural Biodiversity in an Era of Climate Change’ organized by the M.S. Swaminathan Research Foundation (MSSRF), Chennai in collaboration with the United Nations’ Food and Agriculture Organization; Protection of Plant Variety and Farmers’ Rights Authority of the Government of India, and XV Genetic Congress Trust at Chennai from 7 to 9 August 2008. Pluto is now a plutoid – a new class of planetary objects
The first author is supported by CSIR-UGC JRF, New Delhi, India.r The second author is financiall... more The first author is supported by CSIR-UGC JRF, New Delhi, India.r The second author is financially supported by SERB, India.
Scientific writing is integral to any scientific enterprise and constitutes an essential part of ... more Scientific writing is integral to any scientific enterprise and constitutes an essential part of the toolkit of scientists to lead a successful career. But it remains a neglected area in science education, adversely impacting scientists’ career advancement and institutional productivity. When English is the de facto language of science, inabilities to express clearly in English can have serious implications for (non‐native English speaking) scientists. Further, scientists in a multilingual society like India may face more such lingual complexities barring clear and precise writing. Keeping in view the risks and uncertainty associated with weather and climate, different stakeholders are increasingly demanding clear communication from the scientific community. However, we have little understanding about what scientists think about their writing skills and capabilities. This article presents results of a survey examining the perceptions and attitudes of Indian weather and climate scientists about their skills, experiences and training needs in scientific writing. Results suggest that the majority of scientists have difficulties in preparing quality manuscripts suitable for publication, and that they are willing to undergo skill enhancement training to overcome their shortcomings. Some interesting insights emerge from the analysis that would be useful in helping scientists improve their scientific writing.
Scientific ignorance can be a potential obstacle in the journey of India becoming a developed nat... more Scientific ignorance can be a potential obstacle in the journey of India becoming a developed nation and a knowledge economy. Such ignorance can also be the cause of various myths, superstitions and blind faiths which can further hinder the development agenda of any nation. Science communication can potentially dissipate scientific ignorance in the society. Science communication is a rapidly growing area of expertise both academically and professionally around the globe. It is getting established as an academic discipline with several universities/institutions around the world starting academic and research programmes. Science communication is an effort to better understand how science and society interact, and to popularize and commonize scientific knowledge, scientific temper, scientific method of enquiry and scientific culture among the masses. However, the trends in India are not encouraging. This article discusses the emergence of science communication as an academic discipline, its global and Indian trends, and the need of science communication initiatives, training and capacity-building in India.
We question whether analytical tools such as Common Workflow Language, which aim to make computat... more We question whether analytical tools such as Common Workflow Language, which aim to make computational methods "reproducible and shareable", can stand the test of time (see Nature 573, 149-150; 2019). The long-term validity of computational results will not be testable if the original code cannot be run many years later. Considering the rapidity of transformations in operating systems and programming languages, it is hard to predict the lifetime reproducibility of a particular code. We have therefore organized the Ten Years Reproducibility Challenge (see go.nature.com/2bwcukq). Researchers are invited to test code reproducibility by trying to rerun a code created for a scientific paper they published more than ten years ago. The codes can address any scientific domain (statistical analysis, numerical simulation or data processing, for example) and be written in any language. The challenge closes in April 2020. Our hope is that the results will offer insights into long-term causes of non-reproducibility.
Bulletin of the American Meteorological Society, 2019
While writing is integral to science, it gets little attention in formal science education/academ... more While writing is integral to science, it gets little attention in formal science education/academics. Such neglect has serious implications for nonnative English-speaking (NNES) scientists. An inability to write effective and efficient manuscripts can considerably delay the publication of new results while reflecting badly on the performance of individual scientists and on institutional productivity. In the multiethnic and multilingual Indian society, NNES scientists may face more linguistic complexities that inhibit clear and precise scientific writing. This article tries to address the predicament of scientific writing among NNES scientists in weather and climate sciences in India. Results from an informal e-mail survey with 80 respondents, mostly drawn from academic and research institutions in India, bolster anecdotal evidence of the difficulties NNES scientists have in writing about their science in research and popular publications. The responses also reflect high levels of in...
As demand increases for scientists and researchers to take part in public engagement and outreach... more As demand increases for scientists and researchers to take part in public engagement and outreach ([ 1 ][1]–[ 3 ][2]), the Government of India's Department of Science and Technology plans to require Ph.D. scholars to write a popular science article on their research before completing their degree
Objectives: Dream of each child is precious and it is important to keep them safe. The research i... more Objectives: Dream of each child is precious and it is important to keep them safe. The research is an initiative to start a department in colleges for managing talents of generation Z students in order to achieve their non academic career ambitions. Method: Talent Management Objectives such as Talent Identification, Talent Development and Process Intervention have been mapped against Students' Talent Management Objectives such as Creating brand, Establishing Brand and Sustaining Brand. Data were collected through questionnaires based on stratified random sampling method. Findings: Students are not much dependent on their university programme for their ambition. If they get support from parents and teachers, they can become successful student entrepreneurs. It will be inevitable to start such department in future. Improvement: Talent management departments for Students, Incubators, CEO schools, Student Clubs, WhatsApp groups for entrepreneurs should be started to promote entrepreneurship for the generation Z students. Having an ecosystem which supports students to achieve career objectives would surely help students to become entrepreneurs in their campus life.
Miliˇcevi´c et al., in 2004, introduced topological indices known as Reformulated Zagreb indices,... more Miliˇcevi´c et al., in 2004, introduced topological indices known as Reformulated Zagreb indices, where they modified Zagreb indices using the edge-degree instead of vertex degree. In this paper, we present a simple approach to find the upper and lower bounds of the second reformulated Zagreb index, EM2(G), by using six graph operations/transformations. We prove that these operations significantly alter the value of reformulated Zagreb index. We apply these transformations and identify those graphs with cyclomatic number at most 3, namely trees, unicyclic, bicyclic and tricyclic graphs, which attain the upper and lower bounds of second reformulated Zagreb index for graphs.
The Symmetric division deg (SDD) index is a well-established valuable index in the analysis of qu... more The Symmetric division deg (SDD) index is a well-established valuable index in the analysis of quantitative structure-property and structure-activity relationships for molecular graphs. In this paper, we study the range of SDD-index for special classes of trees and unicyclic graphs. We present the first four lower bounds for SDD-index of trees and unicyclic graphs, which admit a perfect matching and find the subclasses of graphs that attain these bounds. Further, we also compute the upper bounds of SDD-index for the collection of molecular graphs, namely the trees and unicyclic graphs, each having maximum degree four and that admit a perfect matching.
CURRENT SCIENCE, VOL. 95, NO. 10, 25 NOVEMBER 2008 1388 *A report on International Forum on ‘Cons... more CURRENT SCIENCE, VOL. 95, NO. 10, 25 NOVEMBER 2008 1388 *A report on International Forum on ‘Conservation and Stewardship of Agricultural Biodiversity in an Era of Climate Change’ organized by the M.S. Swaminathan Research Foundation (MSSRF), Chennai in collaboration with the United Nations’ Food and Agriculture Organization; Protection of Plant Variety and Farmers’ Rights Authority of the Government of India, and XV Genetic Congress Trust at Chennai from 7 to 9 August 2008. Pluto is now a plutoid – a new class of planetary objects
The first author is supported by CSIR-UGC JRF, New Delhi, India.r The second author is financiall... more The first author is supported by CSIR-UGC JRF, New Delhi, India.r The second author is financially supported by SERB, India.
Scientific writing is integral to any scientific enterprise and constitutes an essential part of ... more Scientific writing is integral to any scientific enterprise and constitutes an essential part of the toolkit of scientists to lead a successful career. But it remains a neglected area in science education, adversely impacting scientists’ career advancement and institutional productivity. When English is the de facto language of science, inabilities to express clearly in English can have serious implications for (non‐native English speaking) scientists. Further, scientists in a multilingual society like India may face more such lingual complexities barring clear and precise writing. Keeping in view the risks and uncertainty associated with weather and climate, different stakeholders are increasingly demanding clear communication from the scientific community. However, we have little understanding about what scientists think about their writing skills and capabilities. This article presents results of a survey examining the perceptions and attitudes of Indian weather and climate scientists about their skills, experiences and training needs in scientific writing. Results suggest that the majority of scientists have difficulties in preparing quality manuscripts suitable for publication, and that they are willing to undergo skill enhancement training to overcome their shortcomings. Some interesting insights emerge from the analysis that would be useful in helping scientists improve their scientific writing.
Scientific ignorance can be a potential obstacle in the journey of India becoming a developed nat... more Scientific ignorance can be a potential obstacle in the journey of India becoming a developed nation and a knowledge economy. Such ignorance can also be the cause of various myths, superstitions and blind faiths which can further hinder the development agenda of any nation. Science communication can potentially dissipate scientific ignorance in the society. Science communication is a rapidly growing area of expertise both academically and professionally around the globe. It is getting established as an academic discipline with several universities/institutions around the world starting academic and research programmes. Science communication is an effort to better understand how science and society interact, and to popularize and commonize scientific knowledge, scientific temper, scientific method of enquiry and scientific culture among the masses. However, the trends in India are not encouraging. This article discusses the emergence of science communication as an academic discipline, its global and Indian trends, and the need of science communication initiatives, training and capacity-building in India.
We question whether analytical tools such as Common Workflow Language, which aim to make computat... more We question whether analytical tools such as Common Workflow Language, which aim to make computational methods "reproducible and shareable", can stand the test of time (see Nature 573, 149-150; 2019). The long-term validity of computational results will not be testable if the original code cannot be run many years later. Considering the rapidity of transformations in operating systems and programming languages, it is hard to predict the lifetime reproducibility of a particular code. We have therefore organized the Ten Years Reproducibility Challenge (see go.nature.com/2bwcukq). Researchers are invited to test code reproducibility by trying to rerun a code created for a scientific paper they published more than ten years ago. The codes can address any scientific domain (statistical analysis, numerical simulation or data processing, for example) and be written in any language. The challenge closes in April 2020. Our hope is that the results will offer insights into long-term causes of non-reproducibility.
Bulletin of the American Meteorological Society, 2019
While writing is integral to science, it gets little attention in formal science education/academ... more While writing is integral to science, it gets little attention in formal science education/academics. Such neglect has serious implications for nonnative English-speaking (NNES) scientists. An inability to write effective and efficient manuscripts can considerably delay the publication of new results while reflecting badly on the performance of individual scientists and on institutional productivity. In the multiethnic and multilingual Indian society, NNES scientists may face more linguistic complexities that inhibit clear and precise scientific writing. This article tries to address the predicament of scientific writing among NNES scientists in weather and climate sciences in India. Results from an informal e-mail survey with 80 respondents, mostly drawn from academic and research institutions in India, bolster anecdotal evidence of the difficulties NNES scientists have in writing about their science in research and popular publications. The responses also reflect high levels of in...
As demand increases for scientists and researchers to take part in public engagement and outreach... more As demand increases for scientists and researchers to take part in public engagement and outreach ([ 1 ][1]–[ 3 ][2]), the Government of India's Department of Science and Technology plans to require Ph.D. scholars to write a popular science article on their research before completing their degree
Objectives: Dream of each child is precious and it is important to keep them safe. The research i... more Objectives: Dream of each child is precious and it is important to keep them safe. The research is an initiative to start a department in colleges for managing talents of generation Z students in order to achieve their non academic career ambitions. Method: Talent Management Objectives such as Talent Identification, Talent Development and Process Intervention have been mapped against Students' Talent Management Objectives such as Creating brand, Establishing Brand and Sustaining Brand. Data were collected through questionnaires based on stratified random sampling method. Findings: Students are not much dependent on their university programme for their ambition. If they get support from parents and teachers, they can become successful student entrepreneurs. It will be inevitable to start such department in future. Improvement: Talent management departments for Students, Incubators, CEO schools, Student Clubs, WhatsApp groups for entrepreneurs should be started to promote entrepreneurship for the generation Z students. Having an ecosystem which supports students to achieve career objectives would surely help students to become entrepreneurs in their campus life.
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