An Effective pTp_T Cutoff for the Isolalated Lepton Background from Bottom Decay --

There is a strong correlation between the $p_T$ and isolation of the lepton coming from $B$ decay. Consequently the isolated lepton background from $B$ decay goes down rapidly with increasing lepton $p_T$; and there is a $p_T$ cutoff beyond which it effectively vanishes. For the isolation cut of $E^{AC}_T < 10$ GeV, appropriate for LHC, the lepton $p_T$ cutoff is 80 GeV. This can be exploited to effectively eliminate the $B$ background from the like sign dilepton channel apropriate for Majorana particle searches, as well as the unlike sign dilepton and the single lepton channels appropriate for the top quark search. We illustrate this with a detailed analysis of the $B$ background in these channels along with the signals at LHC energy using both parton level MC and ISAJET programs.Comment: TIFR/TH/93-23 (LATEX, 20 pages, 7 figures available on request

Membrane Fusion Induced by Small Molecules and Ions

Membrane fusion is a key event in many biological processes. These processes are controlled by various fusogenic agents of which proteins and peptides from the principal group. The fusion process is characterized by three major steps, namely, inter membrane contact, lipid mixing forming the intermediate step, pore opening and finally mixing of inner contents of the cells/vesicles. These steps are governed by energy barriers, which need to be overcome to complete fusion. Structural reorganization of big molecules like proteins/peptides, supplies the required driving force to overcome the energy barrier of the different intermediate steps. Small molecules/ions do not share this advantage. Hence fusion induced by small molecules/ions is expected to be different from that induced by proteins/peptides. Although several reviews exist on membrane fusion, no recent review is devoted solely to small moleculs/ions induced membrane fusion. Here we intend to present, how a variety of small molecules/ions act as independent fusogens. The detailed mechanism of some are well understood but for many it is still an unanswered question. Clearer understanding of how a particular small molecule can control fusion will open up a vista to use these moleucles instead of proteins/peptides to induce fusion both in vivo and in vitro fusion processes

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

First Order Linear Homogeneous Ordinary Differential Equation in Fuzzy Environment Based On Laplace Transform

In this paper the First Order Linear Ordinary Differential Equations (FOLODE) are described in fuzzy environment. Here coefficients and /or initial condition of FOLODE are taken as Generalized Triangular Fuzzy Numbers (GTFNs).The solution procedure of the FOLODE is developed by Laplace transform. It is illustrated by numerical examples. Finally imprecise bank account problem and concentration of drug in blood problem are described