Information use pattern on sub-subjects of Political Science research: a citation analysis

The paper presents citation analysis of PhD theses awarded during the period 1986-2015 in five sub- subjects of Political Science under the University of Burdwan. The study is based on the 7711 citations collected from 56 PhD theses of five specific subjects’ viz. Administration, Indian Politics, Political Sociology, International Relation and Political Thought under Political Science. This paper carefully analyses the bibliographic details of all 56 doctoral theses against different predefined criteria such as bibliographic forms, journal ranking, authorship pattern, authorship collaboration and degree of collaboration. After carefully analyzing all the theses against said criteria mentioned above, results have been presented with statistical tables and graphs. The bibliographic data required for the study have been collected from the research section of The University of Burdwan. In addition, Shodhganga (http://shodhganga.inflibnet.ac.in/), has also been consulted. All the references have been analysed using the dBaseIII+ programmes. It was found that, out 56 PhD theses, the maximum contribution was in Public Administration (31 theses). The study confirmed that, Books was found to be most cited materials (51.51%) followed by journal articles with 28.14%. It was also found that, the majority of citations were contributed by single author

Research trends of sub-subjects on Economics: a bibliometric study

The paper is basically a bibliometric study based on 4993 citations from 53 PhD theses under four sub-subjects of Economics viz. Indian Economics, Rural Economics, Economic Developing and International Economics). The purpose of the study is to analyze the citation pattern of references appended to the theses of all four subjects submitted to The University of Burdwan during the period 2006-2015. To fulfill the purpose, all the relevant information has been collected from the research section of The University of Burdwan and Shodhganga (http://shodhganga.inflibnet.ac.in/) and finally has been analyzed against pre-defined parameters such as bibliographic forms, journal ranking, authorship pattern, authorship collaboration, degree of collaboration. All the information collected under these parameters has been presented through dBaseIII plus programmer. It was found that highest number of contribution was in Indian Economics with 26 theses (49.05%) and least number of theses was contributed by International Economics with 2 theses (3.77%). The study also revealed that journals were found to be most cited documents (50.15%), followed by books (26.57%) and single authored articles were mostly cited than multi-authored articles

Growth and Productivity of Research Articles of D-Lib Magazine: a bibliometric study

The present study reveals the bibliometric analysis of research articles published in D-Lib Magazine from 2013 to 2017. The study covers the growth of literature and authorship patterns of the journal during the said period. Further, it analyzes various bibliometrics aspects such as authorship pattern, authors’ degree of collaboration, geographical productivity in scholarly publications and form of citation. For this study, a total of 185 articles are taken up for the evaluation. Necessary bibliometric measures are applied to analyze different publication parameters. The study indicates that the maximum number of articles are in 2015, representing 25.94% of total contributions. The top contributing country during the said period is USA (41.21%). Multi-authored is the leading authorship trend, and the degree of collaboration is 0.76. It is found that the average productivity per author is 0.34, and the average number of authors per paper is 2.90. Out of 3271 citations appended from 185 articles are counted, and average 17.68 citations are published in each article. It is also revealed that journal articles are the popular form of literature in this area

Clinico-Pathological Factors Determining Recurrence of Phyllodes Tumors of the Breast: The 25-Year Experience at a Tertiary Cancer Centre

Background: Phyllodes tumors (PTs) of the breast are rare fibroepithelial tumors that are generally more prone to recurrence.Aims and objectivesThis study aimed to assess the clinicopathological features, diagnostic modalities, and therapeutic interventions, along with their respective outcomes, to identify the factors associated with a recurrence of PTs of the breast.MethodologyA retrospective cohort and observational study was conducted, which entailed analyzing the clinicopathological data of patients who were previously diagnosed or presented with PTs of the breast between 1996 and 2021. Data included the total number of patients diagnosed with PTs of the breast and their ages, tumor grade on initial biopsy, tumor location (left or right breast), tumor size, therapeutic interventions carried out (including surgery-either mastectomy or lumpectomy-and adjuvant radiotherapy), final tumor grade, recurrence status, type of recurrence, and time to recurrence.ResultsWe analyzed data on a total of 87 patients who were pathologically proven to have PTs, and 46 patients (52.87%) were found to have recurrences. All patients were female, with a mean age at diagnosis of 39 years (range 15-70). Patients aged 40 years, with a rate of recurrence of 45.65% (n = 21/46). A total of 55.4% of patients presented with primary PTs and 44.6% had recurrent PTs at presentation. The average time to local recurrence (LR) from the completion of treatment was 13.8 months, whereas for systemic recurrence (SR), it was 15.29 months. Surgery (mastectomy/lumpectomy) was the major determinant for local recurrence (p ConclusionPatients who received adjuvant radiotherapy (RT) had a minimal recurrence of PTs. Patients who were found to have a malignant biopsy on initial diagnosis (triple assessment) had a higher incidence of PTs and were more prone to SR than LR. Surgery was a determining factor in the increased rate of LR, with lumpectomy associated with a higher incidence of LR than mastectomy

Information use pattern on sub-subjects of Political Science research: a citation analysis

The paper presents citation analysis of PhD theses awarded during the period 1986-2015 in five sub- subjects of Political Science under the University of Burdwan. The study is based on the 7711 citations collected from 56 PhD theses of five specific subjects’ viz. Administration, Indian Politics, Political Sociology, International Relation and Political Thought under Political Science. This paper carefully analyses the bibliographic details of all 56 doctoral theses against different predefined criteria such as bibliographic forms, journal ranking, authorship pattern, authorship collaboration and degree of collaboration. After carefully analyzing all the theses against said criteria mentioned above, results have been presented with statistical tables and graphs. The bibliographic data required for the study have been collected from the research section of The University of Burdwan. In addition, Shodhganga (http://shodhganga.inflibnet.ac.in/), has also been consulted. All the references have been analysed using the dBaseIII+ programmes. It was found that, out 56 PhD theses, the maximum contribution was in Public Administration (31 theses). The study confirmed that, Books was found to be most cited materials (51.51%) followed by journal articles with 28.14%. It was also found that, the majority of citations were contributed by single author

Research trends of sub-subjects on Economics: a bibliometric study

The paper is basically a bibliometric study based on 4993 citations from 53 PhD theses under four sub-subjects of Economics viz. Indian Economics, Rural Economics, Economic Developing and International Economics). The purpose of the study is to analyze the citation pattern of references appended to the theses of all four subjects submitted to The University of Burdwan during the period 2006-2015. To fulfill the purpose, all the relevant information has been collected from the research section of The University of Burdwan and Shodhganga (http://shodhganga.inflibnet.ac.in/) and finally has been analyzed against pre-defined parameters such as bibliographic forms, journal ranking, authorship pattern, authorship collaboration, degree of collaboration. All the information collected under these parameters has been presented through dBaseIII plus programmer. It was found that highest number of contribution was in Indian Economics with 26 theses (49.05%) and least number of theses was contributed by International Economics with 2 theses (3.77%). The study also revealed that journals were found to be most cited documents (50.15%), followed by books (26.57%) and single authored articles were mostly cited than multi-authored articles

Effect of fuel injection pressure on the performances of a CI engine using water-emulsified diesel (WED) as a fuel

Abstract Background The choice of energy sources is essential for sustainable development to combat different environmental issues caused by the consumption of fossil fuels. Though diesel engines are considered more efficient and reliable than other internal combustion engines, they emit different harmful pollutants which are detrimental to human health and the environment. Researchers are trying to find suitable alternative fuels for diesel engines with lower pollutant emissions and without much compromise in the efficiency of the engine. In this regard, water-emulsified diesel (WED) may be considered to be one of the most suitable alternative fuels. It is expected that the entire world will use electric vehicles in the long term. However, the complete replacement of IC engines in the near future is not feasible. In fact, different European countries have targeted to ban the use of diesel engine cars before the middle of the twenty-first century. Prior to that date, hybrid vehicles will be more popular and diesel engines will continue to play an important role. Hence, research involving improvements in diesel-operated IC engines is still relevant. Methods An experimental investigation was carried out using WED containing 10% water by volume as a fuel in a diesel engine at four different fuel injection pressures. The WED was prepared using an ultrasonicator. Results With the increase of injection pressure, peak net heat release rate and in-cylinder pressure are found to have increased. Brake thermal efficiency is also found to have improved at higher injection pressure. The maximum efficiency was recorded when a WED at 210 bar of injection pressure is used, and it is about 3.3% higher than the maximum efficiency achieved when using normal diesel at the same pressure of fuel injection. At a higher load, neat brake-specific fuel consumption is found to be less compared to neat diesel, when only the amount of diesel contained in the emulsion as a fuel is considered. Maximum reduction in both NOx and smoke emission by using WED is recorded at 210 bar, and the average reductions are determined to be 32.6% and 51.9%, respectively. Conclusions WED can be used as an alternative fuel for existing diesel engines without any retrofitting and with significant reduction in the emissions of pollutants compared to normal diesel fuel. It can also be concluded that at higher injection pressure, the combustion, performance and emission characteristics of compression ignition engines are improved when using emulsified diesel

Heterometallic boride clusters of group 6 and 9 transition metals

Thermolysis of [Ru₃(CO)₁₂] with an in-situ generated intermediate, obtained from the reaction of [Cp*MoCl₄] and [LiBH₄.THF], led to the formation of [{Cp*Mo(CO)₂}(μ₄-B){Ru(CO)₃}₃(μ-H)₂], 2 and [{Cp*Mo(CO)₂}₂(μ₄-B){Ru(CO)₃}₂(μ-H)], 3 (Cp* = η⁵-C₅Me₅). In a similar fashion, when [Ru₃(CO)₁₂] was thermalized with [(Cp*Rh)₂B₂H₆], obtained from a fast metathesis reaction of [Cp*RhCl₂]₂, 4 and [LiBH₄.THF], yielded a novel heterometallic boride cluster [(Cp*Rh)(μ₆-B){Ru(CO)₃}₄{RuH(CO)₂}], 5. Both compounds 2 and 3 can be described as 50-cluster valence electron (cve) hetero-metallic boride clusters, in which the boron atom is in semi-interstitial position of a M4-butterfly geometry. Compound 5 contains 86 cluster valence-electrons, in which the boron atom is inside of an octahedral hole composed of one rhodium and five ruthenium atoms. Computational studies on the ground of density functional theory has been undertaken to analyze the bonding of 2, 3 and 5. The structural optimization yields geometries in agreement with the structure determinations and computed ¹¹B chemical shifts accurately reflect the observed shifts. The molecular orbital analysis of them shows that all the valence orbitals of boron have been participated in bonding and therefore provides the “encapsulation” picture of the boron atom. All the compounds have been characterized by IR and ¹H, ¹¹B, and ¹³C NMR spectroscopy, and the geometries of the structures were unequivocally established by crystallographic analyses of compounds 2, 3 and 5

Use of Single-Metal Fragments for Cluster Building Synthesis, Structure, and Bonding of Heterometallaboranes

International audienceThe synergic property of the CO ligand, in general, can stabilize metal complexes at lower oxidation states. Utilizing this feature of the CO ligand, we have recently isolated and structurally characterized a highly fluxional molybdenum complex [{Cp*Mo(CO)}{μ-ηη-BH}] (2; Cp* = η-CMe) comprising the diborane(4) ligand. Compound 2 represents a rare class of bimetallic diborane(4) complex corresponding to a singly bridged C structure. In an attempt to isolate the tungsten analogue of 2, [{Cp*W(CO)}{μ-ηη-BH}], we have isolated a rare vertex-fused cluster, [(Cp*W)WBH] (5). Having a structural likeness with the dimolybdenum alkyne complex [{CpMo(CO)}CH], we have further explored the chemistry of 2 with CO gas that yielded a homoleptic trimolybdenum complex, [(Cp*Mo)(μ-H)(μ-H)(μ-CO)BH] (4). In an attempt to replace the 16-electron {Cp*MoH(CO)} moiety in 4 with isolobal fragment {W(CO)}, we treated the intermediate, obtained from the reaction of Cp*MoCl and LiBH, with the monometal carbonyl fragment {W(CO)·THF}. The reaction indeed yielded two bimetallic clusters, [(Cp*Mo)BHW(CO)] (7) and [(Cp*Mo)BHW(CO)] (8), that seem to have been generated by the replacement of one {BH} or {BH} vertex from [(Cp*Mo)BH], respectively. All of the compounds have been characterized by various spectroscopic analyses and single-crystal X-ray diffraction studies. Electron-counting rules and molecular orbital analyses provided further insight into the electronic structure of all of these molecules

Oligomer and Polymer: Self Assembly of [Cp*Fe(η5‐P5)] and Ag(I) Salts of Bulky Weakly Coordinating Anions

Reactions between the five-fold symmetric building block [Cp*Fe(η5-P5)] (A) and Ag(I) salts containing bulky weakly coordinating anions [TEF] and [FAL] ([TEF] = [Al{OC(CF3)3}4]–, [FAl] = [FAl{OC6F10(C6F5)}3]–) are presented. While, in the presence of Ag[TEF], A leads to the formation of a hitherto condensed 1D coordination polymer [{Ag( η 2 : η 1 -A)2}]n[TEF]n (1), a new finite tetranuclear Ag(I) complex [{Ag4( η 1 -A)2( η 2 : η 1 -A)4( η 1 : η 1 -A)2}][FAL]4 (3) was obtained with an Ag(I) salt bearing the weakly coordinating anion [FAl] increased in size . Various coordination modes ( η2: η1; η1: η1 and η1) of A were observed in the solid-state structure of 3, reflecting the adaptive coordination behavior of A towards Ag(I) ions. Structural modifications of the 1D polymer (1) can be controlled by the addition of a trace amount of MeCN yielding the unwound heteroleptic 1D polymer [{Ag(MeCN)2}3( η 1 : η 1 : η 1 -A)2]n[TEF]3n (2) . Moreover, in the presence of MeCN, the finite oligomeric compound 3 can also be converted into a new heteroleptic 1D polymer [{Ag(MeCN)}4( η 1 : η 1 -A)5( η 2 : η 1 -A)2]n[FAL]4n (4)