Absorption on horizon-wrapped branes

We compute the absorption cross section of space-time scalars on a static D2 rane, in global coordinates, wrapped on the S^2 of an AdS_2 X S^2 X CY_3 geometry. We discuss its relevance for the construction of the dual quantum mechanics of Calabi-Yau black holes.Comment: 18 pages, 2 figure

UNDERSTANDING COVID-19 RELATED HEALTH LITERACY SKILLS AND COMPETENCIES AMONG THE WORKING LIS PROFESSIONALS IN DR. ZAKIR HUSAIN CENTRAL LIBRARY, JAMIA MILLIA ISLAMIA: A STUDY

Health literacy has become an integral component of human life, and it plays a significant role in ensuring safety from a variety of deadly diseases. India\u27s health literacy rate is below average when compared to other countries. Since the Covid-19 pandemic, doctors and volunteers from all over the world have been striving to promote health literacy to raise public awareness through various media. Given the foregoing, the main objective of this study is to identify the level of Covid-19 related health literacy among working LIS professionals at Jamia Millia Islamia\u27s Dr.Zakir Husain Central Library. The survey approach is being used in this study\u27s methodology. For ease of understanding, a well-structured questionnaire was created in both Hindi and English. A total of 54 questionnaires were distributed, with 40 completed questionnaires received. The key findings demonstrate that 100% of LIS professionals are aware of health literacy, and that the most common source of health information is family/friends 23(57.5%), followed by doctors 19 (47.5%). Electronic media (short clip videos provided by health organisations) is the most favoured medium for obtaining health-related information, i.e. 38. (95%). Furthermore, respondents are well-versed on COVID-19 transmission mechanisms; yet, respondents\u27 difficulties in obtaining health information are attributed to a lack of understanding of health literacy sources. Another significant finding from the study is that 100% of respondents believe that libraries can play an essential role in improving health literacy among academic community. The entire work is based on original research and serves as a resource for other scholars working in the same field

A systematic review of dietary, nutritional, and physical activity interventions for the prevention of prostate cancer progression and mortality

PURPOSE: Given the long-term, although potentially fatal, nature of prostate cancer, there is increasing observational evidence for the reduction in disease progression and mortality through changes in lifestyle factors. METHODS: We systematically reviewed dietary, nutritional, and physical activity randomized interventions aimed at modifying prostate cancer progression and disease-specific mortality, including a detailed assessment of risk of bias and methodological quality. RESULTS: Forty-four randomized controlled trials of lifestyle interventions, with prostate cancer progression or mortality outcomes, were identified. Substantial heterogeneity of the data prevented a meta-analysis. The included trials involved 3,418 prostate cancer patients, median 64 men per trial, from 13 countries. A trial of a nutritional supplement of pomegranate seed, green tea, broccoli, and turmeric; a trial comparing flaxseed, low-fat diet, flaxseed, and low-fat diet versus usual diet; and a trial supplementing soy, lycopene, selenium, and coenzyme Q10, all demonstrated beneficial effects. These trials were also assessed as having low risk of bias and high methodological quality (as were seven other trials with no evidence of benefit). The remaining trials were either underpowered, at high or unclear risk of bias, inadequately reported, of short duration or measured surrogate outcomes of unproven relationship to mortality or disease progression, which precluded any benefits reported being reliable. CONCLUSION: Large, well-designed randomized trials with clinical endpoints are recommended for lifestyle modification interventions. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s10552-015-0659-4) contains supplementary material, which is available to authorized users

ANOMALY BASED DETECTION AND PREVENTION TO PROVIDE SECURE MANET USING DUAL HEAD CLUSTER IN HIERARCHICAL COOPERATIVE IDS

ABSTRACT A purely wireless network wherein each device itself acts as a node and also performs the task of router is called as Mobile Ad-hoc network. A MANET has become a need of today's fastest developing era. A measure issue in MANET is security as it is an autonomous system of nodes which has no fixed infrastructure and also, due to continuous movement of mobile nodes it has dynamic topology so it is difficult to maintain security. In our proposed system a cluster with dual head will be used in cooperative IDS for anomaly detection system .Two head nodes will be protecting each other from intrusion along with detecting intrusion for cluster member. This intrusion can be detected by signature analysis or anomaly based detection. Anomaly based detection will detect intrusion by monitoring the whole system activities. Our proposed system will also find attacks which are new and which were not possible to detect by using signature analysis. Proposed system will be able to detect the anomaly behaviour of the attacks like black hole, Dos and flood anomaly. As a result of our research work a stable, secure network will get formed

A Hybrid Active Neutral Point Clamped Inverter Utilizing Si and Ga2O3 Semiconductors: Modelling and Performance Analysis.

In this paper, the performance of an active neutral point clamped (ANPC) inverter is evaluated, which is developed utilizing both silicon (Si) and gallium trioxide (Ga2O3) devices. The hybridization of semiconductor devices is performed since the production volume and fabrication of ultra-wide bandgap (UWBG) semiconductors are still in the early-stage, and they are highly expensive. In the proposed ANPC topology, the Si devices are operated at a low switching frequency, while the Ga2O3 switches are operated at a higher switching frequency. The proposed ANPC mitigates the fault current in the switching devices which are prevalent in conventional ANPCs. The proposed ANPC is developed by applying a specified modulation technique and an intelligent switching arrangement, which has further improved its performance by optimizing the loss distribution among the Si/Ga2O3 devices and thus effectively increases the overall efficiency of the inverter. It profoundly reduces the common mode current stress on the switches and thus generates a lower common-mode voltage on the output. It can also operate at a broad range of power factors. The paper extensively analyzed the switching performance of UWBG semiconductor (Ga2O3) devices using double pulse testing (DPT) and proper simulation results. The proposed inverter reduced the fault current to 52 A and achieved a maximum efficiency of 99.1%

Supporting mental health, wellbeing and study skills in Higher Education:an online intervention system

Abstract Background Dealing with psychological and study skill difficulties can present a challenge for both Higher Education (HE) students, who suffer from them, but also for HE Institutions and their support services. Alternative means of support, such as online interventions, have been identified as cost-effective and efficient ways to provide inclusive support to HE students, removing many of the barriers to help-seeking as well as promoting mental health and wellbeing. Case presentation The current case study initially outlines the rigorous approach in the development of one such online intervention system, MePlusMe. It further highlights key features that constitute innovative delivery of evidence-based psychological and educational practice in the areas of mental health, promotion of wellbeing, support of mood and everyday functioning, and study-skills enhancement. Conclusions This case study aims to present the innovative features of MePlusMe in relation to current needs and evidence-basis. Finally, it presents future directions in the evaluation, assessment, and evidence of the fitness-for-purpose process

The effect of cataract on early stage glaucoma detection using spatial and temporal contrast sensitivity tests

Background: To investigate the effect of cataract on the ability of spatial and temporal contrast sensitivity tests used to detect early glaucoma. Methods: Twenty-seven glaucoma subjects with early cataract (mean age 60 ±10.2 years) which constituted the test group were recruited together with twenty-seven controls (cataract only) matched for age and cataract type from a primary eye care setting. Contrast sensitivity to flickering gratings at 20 Hz and stationary gratings with and without glare, were measured for 0.5, 1.5 and 3 cycles per degree (cpd) in central vision. Perimetry and structural measurements with the Heidelberg Retinal Tomograph (HRT) were also performed. Results: After considering the effect of cataract, contrast sensitivity to stationary gratings was reduced in the test group compared with controls with a statistically significant mean difference of 0.2 log units independent of spatial frequency. The flicker test showed a significant difference between test and control group at 1.5 and 3 cpd (p = 0.019 and p = 0.011 respectively). The percentage of glaucoma patients who could not see the temporal modulation was much higher compared with their cataract only counterparts. A significant correlation was found between the reduction of contrast sensitivity caused by glare and the Glaucoma Probability Score (GPS) as measured with the HRT (p<0.005). Conclusions: These findings indicate that both spatial and temporal contrast sensitivity tests are suitable for distinguishing between vision loss as a consequence of glaucoma and vision loss caused by cataract only. The correlation between glare factor and GPS suggests that there may be an increase in intraocular stray light in glaucoma

Implementation of Bootstrap ARIMA Method to Forecasting Gross Domestic Products (GDP)

This study examines the application of bootstrap ARIMA method to forecasting the GDP of West Sulawesi Province. GDP data is time series data so to predict GDP of West Sulawesi Province for some future period used time series analysis technique. One method often used in time series modeling in forecasting data is ARIMA Box-Jenkins. A nonparametric approach that is free of assumptions, one of which is the bootstrap method. The bootstrap method is a computer-based method that is very potential to be used on accuracy problems where the method is based on data simulations for statistical inference purposes. From result of research obtained that model of GDP data is ARIMA Bootstrap (0,2,1)

Sharing vocabularies: towards horizontal alignment of values-driven business functions

This paper highlights the emergence of different ‘vocabularies’ that describe various values-driven business functions within large organisations and argues for improved horizontal alignment between them. We investigate two established functions that have long-standing organisational histories: Ethics and Compliance (E&C) and Corporate Social Responsibility (CSR). By drawing upon research on organisational alignment, we explain both the need for and the potential benefit of greater alignment between these values-driven functions. We then examine the structural and socio-cultural dimensions of organisational systems through which E&C and CSR horizontal alignment can be coordinated to improve synergies, address tensions, and generate insight to inform future research and practice in the field of Business and Society. The paper concludes with research questions that can inform future scholarly research and a practical model to guide organizations’ efforts towards inter-functional, horizontal alignment of values-driven organizational practice

Alcohol use in Iraq: Perceptions of interviewed students at three Iraqi universities.

INTRODUCTION: Iraq has faced decades of conflict and increased exposure to alcohol use. While the majority (60%) of Iraq's population is under the age of 24, there is no research examining their views on alcohol use and related factors. This study explores how the individual, interpersonal and social contexts of university students may influence their experiences and perceptions of alcohol use. METHODS: We undertook a qualitative study underpinned by a socio-ecological framework and the alcohol use motivational model. Forty students from 11 disciplines at three universities across Iraq were interviewed (45% female). Interviews were conducted in English (n = 3) or Arabic (n = 37). Template analysis was used to examine the data. RESULTS: Perceptions of the prevalence of alcohol use varied among participants. Perceived motives for drinking included using alcohol to cope with grief, loss, poverty and unemployment; as well as peer pressure, thrill-seeking and social approval. Abstinence was perceived to be associated with knowledge of the adverse effects of alcohol and a commitment to faith. Students reported alcohol use as a clandestine activity. Students suggested education, open communication and employment opportunities as preventative strategies. DISCUSSION AND CONCLUSION: This is the first study to explore young Iraqi perceptions and experiences of peers' alcohol use in the current context of conflict, political instability and globalisation. Young Iraqis are a vulnerable population who may be at risk of alcohol-related harm. Iraq should consider multidimensional preventive approaches that include evidence-based and culturally appropriate interventions that reflect young people's real-life experiences and challenges