Multi-epoch intra-night optical monitoring of 8 radio-quiet BL Lac candidates

For a new sample of 8 weak-line-quasars (WLQs) we report a sensitive search in 20 intranight monitoring sessions, for blazar-like optical flux variations on hour-like and longer time scale (day/month/year$-$like). The sample consists exclusively of the WLQs that are not radio$-$loud and have either been classified as `radio-weak probable BL Lac candidates' and/or are known to have exhibited at least one episode of large, blazar$-$like optical variability. Whereas only a hint of intra$-$night variability is seen for two of these WLQs, J104833.5$+$620305.0(z = 0.219) and J133219.6$+$622715.9 (z = 3.15), statistically significant inter$-$night variability at a few per cent level is detected for three of the sources, including the radio-intermediate WLQ J133219.6$+$622715.9 (z = 3.15) and the well known bona$-$fide radio$-$quiet WLQs J121221.5$+$534128.0 (z = 3.10) and WLQ J153259.9$-$003944.1 (z = 4.62). In the rest$-$frame, this variability is intra-day and in the far$-$UV band. On the time scale of a decade, we find for three of the WLQs large brightness changes, amounting to 1.655$\pm$0.009, 0.163$\pm$0.010 and 0.144$\pm$0.018 mag, for J104833.5$+$620305.0, J123743.1$+$630144.9 and J232428.4$+$144324.4, respectively. Whereas the latter two are confirmed radio-quiet WLQs, the extragalactic nature of J104833.5$+$620305.0 remains to be well established, thanks to the absence of any feature(s) in its available optical spectra. The present study forms a part of our ongoing campaign of intranight optical monitoring of radio quiet weak-line quasars, in order to improve the understanding of this enigmatic class of Active Galactic Nuclei and to look among them for a possible tiny, elusive population of radio-quiet BL Lacs.Comment: Accepted to MNRAS. 12 pages, 1 figure, 4 Tabl

A study to assess the impact of entrepreneurship on women empowerment

Entrepreneurship is an area where few women wish to venture. In spite of being looked upon as a risky venture of late a lot number of women entrepreneurs are witnessed. The study focuses on identifying the factors empowering women entrepreneurs, association between the profile variables and empowering factors, association between the empowering factors and perceived difference in sole proprietorship and partnership form of entrepreneurship. For the purpose of the study data was collected from 200 respondents in Salem district by using convenience sampling. 100 respondents from sole proprietors and 100 respondents are in partnership business. The data was collected with the use of structured questionnaire. The tools used for analysis arc Factor analysis, ANOVA, correlation, multiple regression and independent t test. The factors identified are financial independence, social recognition, attitude, self-improvement and leadership quality. Leadership Quality and Financial Independence are the most empowering factor in sole proprietorship. The most empowering factor among the partnership form of business is Financial Independence and Attitude

Fine needle aspiration cytology diagnosis of caesarean scar endometriosis with histopathological correlation: a case report

Endometriosis is defined as the presence of endometrial tissue outside the endometrium or myometrium. It occurs in 8-15% of women of reproductive age group with abdominal wall endometriosis accounting for only 0.5-1% of all pelvic endometriosis. We present a case of a 25 year old lady who presented with a mass in the anterior abdominal wall over a previous caesarean section scar. Endometriosis was diagnosed on Fine Needle Aspiration Cytology (FNAC) based on the findings of monolayered sheets of endometrial cells, few spindle shaped stromal cells and hemosiderin laden macrophages in the background. Histopathological examination confirmed the cytological diagnosis. Endometriosis in scar tissue is a rare disease which might be difficult to diagnose and should always be considered in evaluation of painful abdominal masses in women. Fine needle aspiration cytology is economical, fast and accurate method to make the diagnosis of scar endometriosis and to plan better surgical approach

Scheduling Algorithms for Cloud: A Survey and Analysis

Cloud Computing is a fast growing computing paradigm due to the vast benefits it provides to the users. Scheduling becomes one of the key aspects due to the pay-as-you-go nature of the Cloud. The factors affecting the technique of scheduling applied change with change in scenarios. For instance for scheduling in hybrid clouds the data transfer speed has to be taken into consideration whereas for mobile environments scheduling becomes dependent on context change. Moreover scheduling can be improvised on many fronts such as energy efficiency, cost minimization, Maximization of resource utilization, etc. This paper surveys scheduling techniques in various Cloud Computing scenarios and sites the most efficient scheduling technique available for a particular set of user needs by comparing various techniques and the problems they address