Impact of Charge on Traversable Wormhole Solutions in f(R,T)f(R,T) Theory

This paper examines the effects of charge on traversable wormhole structure in $f(R,T)$ theory. For this purpose, we use the embedding class-I approach to build a wormhole shape function from the static spherically symmetric spacetime. The developed shape function satisfies all the required conditions and connects two asymptotically flat regions of spacetime. We consider different models of this modified theory to examine the traversable wormhole solutions through null energy condition and also check their stable state. We conclude that viable and stable wormhole solutions are obtained under the influence of charge in this gravitational theory.Comment: 21 pages, 5 figure

STRATEGIC OPPORTUNITY, SECURITY DILEMMA AND THE INTERPLAY OF INTERESTS: RUSSIA, CHINA AND THE US IN THE ARCTIC REGION SINCE 2014

The Northern Pole's polar ice is melting at an alarming rate due to climate change, significantly impacting the region's strategic landscape. The potential for economic growth and increasing security competition has led Russia, China and the US to ramp up their politico-military activities in the region. This research paper uses a qualitative method that explores the changing geopolitics of the region through a structural realist approach to examine the strategic interests and opportunities of these three countries in the Arctic. The study sheds light on how climate change has affected the region's geopolitical and geostrategic effects and how these countries compete for influence in the area, leading to mounting concerns and policy shifts. The paper shows how Russia takes a realist approach; China enhances its influence through a developmental approach, while the US tries to increase its power to counter the influence of Russia and China in the region. Additionally, the paper explains how the interplay of interests in the region is associated with the offence-defence balance and security dilemmas resulting from the neorealist behaviour of these states.   Bibliography Entry Mushtaq, Shireen, Uswa Sharif and Rida Fatima. 2023. "Strategic Opportunity, Security Dilemma and the Interplay of Interests: Russia, China and the US in the Arctic Region Since 2014." Margalla Papers 27 (1): 67-81

Personal and Social Resources Interplay Synergistically to Enhance Academic Motivation

Guided by self-determination theory, the present study examines independent and interactive roles of self-efficacy and perceived social support in predicting types of academic motivation. Data were collected from 325 university undergraduates in 18-23 years of age (M=21.09, SD=1.34) from the fifth biggest city of South Asia. Results showed the independent and interactive effects of self-efficacy and social support from friends and from a significant other on intrinsic academic motivation after controlling the potential confounding due to demographics. Social support from friends, but not from family and a significant other, independently predicted extrinsic academic motivation. Neither self-efficacy nor social support significantly predicted amotivation

Impact of direct acting antivirals on occurrence and recurrence of hepatocellular carcinoma: Biologically plausible or an epiphenomenon?

Hepatocellular carcinoma (HCC) is a major cause of morbidity and mortality worldwide. Chronic hepatitis C virus infection (HCV) is the most common cause of HCC in many European countries, Japan and Pakistan. Introduction of the new direct acting antivirals (DAAs) has revolutionized the management of HCV worldwide, with high rates of sustained virologic response in patients who could not have tolerated the previous interferon based treatments. However, recently there have been reports raising caution about the long term effects of DAAs, particularly a possible increased risk of HCC. Therefore this review explores the current molecular studies as well as clinical data that investigate the impact of DAAs on occurrence and recurrence of HCC

Cylinder with Charged Anisotropic Source

We take charged anisotropic fluid cylinder when there is no external pressure acting on the fluid. This is a cylindrical version of the Krori and Barua's method to explore the field equations with anisotropic fluid. We discuss models with positive matter density and pressure that satisfy all the energy and stability conditions. It is found that charge does not vanish at the center of the cylinder. The equilibrium condition as well as physical conditions are discussed. Further, we highlight the connection between our solutions and the charged strange quark stars as well as with dark matter including charged massive particles. The graphical analysis of the matter variables versus charge is given which indicates a physically reasonable matter distribution.Comment: 28 pages, 25 figures, accepted for publication in Can. J. Phys. arXiv admin note: some text overlap with arXiv:1004.2165 and arXiv:1007.188

Impact of Crime on Socio-Economic Development: A Study of Karachi

This study was conducted to explore the impact of crime on socio-economic development of the country. The purpose of the study was to comprehend the increasing crime rate and to know its influences on socio-economic progress. To examine the crime and its impacts on country development, a field survey was conducted and questionnaires was developed to understand the ground situation. For the purpose of the interviews the members of the community were selected by using simple random sample technique.  This study is found that crime rate is cumulative due to dissimilar socio-economic snags like, poverty, unemployment, uses of drugs, etc.  Further this study highlights the causes and recommends possible solutions for the curbing the threat of crime in Karachi. The main focus of this research paper is to find out the pathways to overcome crime in Pakistan. Key words: Crime, Socio-Economic, Development, Karach

Expressed emotion and wellbeing in South Asian heritage families living in the UK

The primary aim of this paper was to understand expressed emotion (EE) and its relationship to wellbeing in South Asians (SAs) living in the UK. A total of 529 participants of South Asian heritage were recruited from the UK and completed an online survey consisting of the family questionnaire, the level of expressed emotion scale (LEE), warmth measure, the hospital anxiety and depression scale. Components of EE and wellbeing were investigated using network analysis. Overall, the participants were classified as low EE for criticism, but high for emotional overinvolvement. They scored relatively high on the warmth scale. LEE scores were in the middle range. The network analysis revealed unique associations between EE subscales and symptoms of depression and anxiety, and highlighted positive aspects of EE. The network analysis also highlighted differences in EE between parents and partner. The findings provide an overview of the interactions and influence of EE variables within this population. Future research should focus on the differences between SA ethnicities and religions; differentiating between intrusive and non-intrusive involvement may help further explain part of the variance between variables; exploring first and second-generation immigrants would help discover the impact of acculturation and intergenerational trauma on EE

Poverty Status and Factors Affecting Household Poverty in Southern Punjab: An Empirical Analysis

The strategies expected to mitigate poverty tend to identify factors that are closely related to poverty and that could have influenced the policy implications. A household level data was collected to examine the poverty status and factors affecting poverty in Southern Punjab. A logistic regression technique was employed for the present analyses. The findings show that age and education of the household head, own house, spouse participation, remittances, number of earners in the household and physical assets reduces the probability of being poor in Southern Punjab. However, large household size, occupation in the primary sector, high dependency ratio and mental disability are associated with an increased probability of being poor in Southern Punjab. Government should adopt effective policy measures to generate employment and encourage the attainment of education for the poor households for the mitigation of poverty in this region

Evaluating the effectiveness of text messaging and phone call reminders to minimize no show at pediatric outpatient clinics in Pakistan: protocol for a mixed-methods study

Background: Missing health care appointments without canceling in advance results in a no show, a vacant appointment slot that cannot be offered to others. No show can be reduced by reminding patients about their appointment in advance. In this regard, mobile health (mHealth) strategy is to use text messaging (short message service, SMS), which is available on all cellular phones, including cheap low-end handsets. Nonattendance for appointments in health care results in wasted resources and disturbs the planned work schedules.Objectives: The purpose of this study is to evaluate the efficacy of the current text messaging (SMS) and call-based reminder system and further explore how to improve the attendance at the pediatric outpatient clinics. The primary objectives are to (1) determine the efficacy of the current clinic appointment reminder service at pediatric outpatient clinics at Aga Khan University Hospital, (2) assess the mobile phone access and usage among caregivers visiting pediatrics consultant clinics, and (3) explore the perception and barriers of parents regarding the current clinic appointment reminder service at the pediatric outpatient clinics at Aga Khan University Hospital.Methods: The study uses a mixed-method design that consists of 3 components: (1) retrospective study (component A) which aims to determine the efficacy of text messaging (SMS) and phone call–based reminder service on patient’s clinic attendance during January to June 2017 (N=58,517); (2) quantitative (component B) in which a baseline survey will be conducted to assess the mobile phone access and usage among parents/caregivers of children visiting pediatrics consultant clinics (n=300); and (3) qualitative (component C) includes in-depth interviews and focus group discussion with parents/caregivers of children visiting the pediatric consultancy clinic and with health care providers and administrative staff. Main constructs will be to explore perceptions and barriers related to existing clinic appointment reminder service. Ethics approval has been obtained from the Ethical Review Committee, Aga Khan University, Pakistan (4770-Ped-ERC-17).Results: Results will be disseminated to pediatric quality public health and mHealth communities through scientific meetings and through publications, nationally and internationally.Conclusions: This study will provide insight regarding efficacy of using mHealth-based reminder services for patient’s appointments in low- and middle-income countries setup. The finding of this study will be used to recommend further enhanced mHealth-based solutions to improve patient appointments and decrease no show