Browse Items (11810 total)
Sort by:
-
Possibilities for the Flow of Water and Blood through a Graphene Layer in a Geometry Analogous to Human Arterioles: An Observational Study
Atherosclerosis and aneurysm are two non-communicable diseases that affect the human arterial network. The arterioles undergo dimensional changes that prominently influence the flow of oxygen and nutrients to distal organs and organ systems. Several studies have emerged discussing the various possibilities for the circumstances surrounding the existence of these pathologies. In the present work, we analyze the flow of blood across the stenosis and the aneurysmic sac in contrast with the flow of water to explore alterations in the flow characteristics caused by introduction of the graphene layer. We investigate the blood flow past the graphene layer with varying porosity. The study is undertaken to replace usage of a stent along a blocked artery by inserting a thin layer of graphene along the flow channel in the post-pathological section of the geometry. To explain the flow, a 2D mathematical model is constructed, and the validity and exclusivity of the models solution are examined. When the artery wall is assumed to be inelastic, the computation of the mathematical system is evaluated using a finite element method (FEM) solver. We define a new parameter called critical porosity (Formula presented.) to explore the flow possibilities through the graphene layer. The findings indicate that the flow pattern was adversely affected by the graphene layer that was added to the flow field. The negative impact on the flow could be due to the position of the graphene layer placed. The (Formula presented.) values for the flow of blood across healthy arteriole, stenosed arteriole, and aneurysmic arteriole segments were (Formula presented.) and (Formula presented.) respectively. The critical porosity values were achieved with precision in terms of linear errors (Formula presented.), (Formula presented.), and (Formula presented.), respectively. The consequences of the present study disclose various possible ways to utilize graphene and its compounds in the medical and clinical arena, with a prior exploration of the chemical properties of the compound. The idea and the methodology applied for the present study are novel as there have been no previous research works available in this direction of the research field. 2023 by the authors. -
Positive side effects of the Covid-19 pandemic on environmental sustainability: evidence from the quadrilateral security dialogue countries
Purpose: The eruption of coronavirus disease 2019 (COVID-19) has pointedly subdued global economic growth and producing significant impact on environment. As a medicine or a treatment is yet available at mass level, social distancing and lockdown is expected the key way to avert it. Some outcome advocates that lockdown strategies considered to reduce air pollution by curtailing the carbon emission. Current investigation strives to affirm the impact of lockdown and social distancing policy due to covid-19 outbreak on environmental pollution in the QUAD nations. Design/methodology/approach: To calibrate the social movement of public, six indicators such residential mobility, transit mobility, workplace mobility, grocery and pharmacy mobility, retail and recreation mobility and park mobility have been deliberated. The data of human mobility have been gathered from the Google mobility database. To achieve the relevant objectives, current pragmatic analysis exerts a panel autoregressive distributed lag model (ARDL)-based framework using the pooled mean-group (PMG) estimator, proposed by Pesaran and Shin (1999), Pesaran and Smith (1995). Findings: The outcome reveals that in the long-run public mobility change significantly impact the pollutants such as PM2.5 and nitrogen dioxide; however, it does not lead to any changes on ozone level. As per as short run outcome is concerned, the consequence unearths country wise heterogeneous impact of different indicators of public mobility on the air pollution. Research limitations/implications: The ultimate inferences of the above findings have been made merely on the basis of examination of QUAD economies; however, comprehensive studies can be performed by considering modern economies simultaneously. Additionally, finding could be constraint in terms of data; for instance, Google data used may not suitably signify real public mobility changes. Originality/value: A considerable amount of investigation explores the impact of covid-19 on environmental consequences by taking carbon emission as a relevant indicator of environmental pollution. Hence, the present pragmatic investigation attempts to advance the present discernment of the above subject in two inventive ways. Primarily, by investigating other components of environmental pollution such as nitrogen dioxide, PM2.5 and ozone, to reveal the impact of covid-19 outbreak on environmental pollution, as disregarded by the all preceding studies. Additionally, it makes a methodological contribution before integrating supplementary variables accompanying with ecological air pollution. Finally, the current research article provides an alternative and creative approach of modeling the impact of public mobility on environmental sustainability. 2021, Emerald Publishing Limited. -
Positive psychology in individual wellness: a thematic illustration of drama as a therapeutic framework in identity transformation
Purpose: The language of participative theatre can be considered immersive in the treatment of its dialectics where participants engage fully with their dichotomies and value systems through physical and psychological exploratory processes as they commit themselves to transformation. Design/methodology/approach: The use of drama as an intervention for challenging recurring mental models of oppressive narratives is used extensively in experiential psychotherapy and as a socio-psychological integrative tool. This experiential methodology allows for an organic development and expression of themes and motifs by encouraging a participant to develop a deeper awareness of how he/she interprets their identity and that of the community in which they function. Findings: This paper aims to review the implications of applying drama-based interventions as positive psychotherapeutic devices to facilitate self-reflection and active-constructive responding in enabling a rendering of positive patterns of thought and purposeful movement towards emotional and physical well-being. Practical implications: Research on the principles of positive psychology suggests that positive emotions lead to therapeutic change. Nurturing positive emotions which are immanent in spirituality, creativity and optimistic perseverance through autonomy and self-regulation enable individual potential to come to meaningful fruition. Originality/value: The paper conceptualizes psychodrama as a framing technique in enabling reflexive action in identity transformation and well-being. 2024, Emerald Publishing Limited. -
Positive People and Confident Competitors: Resilient Youth Development Through Sport and Physical Activity
In the altering world scenario, there is a necessity to plan, prepare and progress with youth development. Research has associated positive youth development with the 5Cs model (competence, confidence, connection, character and caring) (Lerner et al., The Journal of Early Adolescence 25:17-71, 2005) to build resilience in youth. Over the past 35 years, sport psychology has established that sport helps in developing necessary psychological skills and attributes among youth. Youth sport is an extracurricular activity that provides young people with unique negative and positive experiences. Within these experiences, the individual goes beyond the self and has to work with a diverse group of others for self-development and achievement of shared goals. In this chapter, our primary objective is to review the foundations of literature concerning confidence, resilience and identity as corner-stones for positive youth development through sport. To achieve this objective, we adopt a global approach blending field experience from participatory sport, developmental sport and elite sport to provide an intervention framework grounded in applied sport psychology. Intervention framework provided is aligned to the COM-B behaviour change model (Michie et al. 2011) for sustainable change. The focus is on a balance between developing stable protective factors for mental health and positive youth development to ensure appropriate cognitive, social, emotional and behaviour skills to thrive in an evolving world. Implications for transferring this learning cross-culturally and in non-sport contexts such as schools and grass-root programs are discussed with recommendation for good practice. The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023. -
Positive ageing: self-compassion as a mediator between forgiveness and psychological well-being in older adults
Purpose: Positive aging aims to promote the physical health and psychological well-being of older adults for them to age successfully. Under the domain of positive aging, this study aims to explore the mediating role of self-compassion between forgiveness and psychological well-being in older adults. Design/methodology/approach: It was based on a quantitative research design, with a sample of 250 individuals within the age group of 6075 years. Data was collected using Self-compassion Scale (2003), Heartland Forgiveness Scale (2005) and Psychological Well-being Scale. Analysis was performed using Pearsons correlation, linear regression, followed by the generalised linear model of mediation. Findings: The results revealed a significant (p ? 0.001), high and positive correlation between self-compassion and forgiveness (r = 0.821), forgiveness and psychological well-being (r = 0.852) and self-compassion and psychological well-being (r = 0.802). Linear regression suggested that self-compassion and forgiveness are significant (p ? 0.001) predictors of psychological well-being, causing a variance of 75.6%. Mediation revealed significant (p ? 0.001) direct, indirect and total effect between the variables, showing that self-compassion partially mediates the relationship between forgiveness and psychological well-being. Research limitations/implications: The findings provide valuable insights on how fostering self-compassion along with forgiveness can improve psychological well-being among the elderly, however, research on additional variables, drawing comparisons between gender, economic status and clinical populations can be further explored. Nevertheless, this study can be used to develop interventions and therapeutic techniques to enhance self-compassion and forgiveness to improve psychological well-being among older adults. Originality/value: As per the best knowledge of the researcher, this work is original as it is a primary research and no data has been collected of a similar nature from the participants. 2024, Emerald Publishing Limited. -
Portraying the Other in Textbooks and Movies: The Mental Borders and Their Implications for IndiaPakistan Relations
Borders have been traditionally known just as physical cartographic boundaries on maps. However, the epistemological and ontological underpinnings of Border Studies have witnessed constant evolution in the past century. This has brought to the fore the importance of mental borders along with the physical borders. When it comes to a region like South Asia, the lack of regional integration is conspicuous. One of the reasons for this is the existence of mental borders along with rigid physical borders. The paper seeks to understand the process of creation of mental borders between the two South Asian neighbours by probing it from the point of view of school textbooks and cinematic narrative. School textbooks are the most fundamental building blocks of knowledge in any society. Analysis of these texts brings forward the metaphysical construction of mental borders at a very early stage. Subsequently, cinema as a mode of popular culture is an effective tool in order to understand social phenomena from peoples perspective. Here, the process of meaning creation is largely embedded in linguistics and is derived from peoples experiences. The deconstruction of these data sources leads to the understanding of the process of mental border formation. 2019, 2019 Association for Borderlands Studies. -
PORTRAYAL OF WOMEN IN RITUPARNO GHOSHS FILMS
Cinema is told to be the universal teacher. It is simple and can teach the audience on various issues and provide entertainment at the same time. Cinema has proved to be a wonderful source of entertainment and relaxation. Films increase our horizon while at the same time frames our thinking process as it becomes the popular culture. It is said that films have a lot of influence on the audience and the society. Sometimes knowingly or unknowingly the society is influenced by what is shown on screen and try to relate it to their own life. It is generally seen that there are stereotypical roles, gender expectations from the male and female characters, storyline in a mainstream Indian film. However there are few directors who choose to be different and deal with delicate subjects like relationships, divorce, widowhood, infidelity and LGBT (lesbian, gay, Bisexual, Transexual) issues. Rituparno Ghosh has dealt with issues related to women and places the movie from the point of view of the female character and not the usual male character. The director is said to have understood the psyche of a woman very well and establish that on screen even better. Rituparno Ghoshs always celebrated the female sexuality and liberty and was against the stereotyping of female characters which is again very rare in Indian films. This research is an attempt to see the pattern of portrayal of women in his films regarding to the kind of issues and themes he dealt with. -
Portrayal of sikhism in hindi movies /
A Sikh is known for his strength and valor, comedians, a true friend to someone, dedicated, hard work. These are the general characteristics that are taken into consideration while dealing with how we perceive their nature on screen. Over the past few years Portrayal of Sikhism has evolved from being a comedian to a more serious role and some of the stories being based on true lifes of Sikhs. With portrayal of Sikhs in Hindi movies, the image of the community has been lifted despite them being stereotyped in cinema in form of various actors, enacting the roles of a Sikh on screen whose enactment has helped in uplifting the communitys image in the minds of the people despite the Sikh religion being the lowest in the population count. -
PORTRAYAL OF POLITICAL STEREOTYPES IN BOLLYWOOD MOVIES
Bollywood movies have a stereotypical way of depicting politics and politician, corruption and bureaucracy. There has been repetition in the way themes have been portrayed. Love, loyalty, patriotism, pain, glamour, difference between rich and poor and also politics/politicians. These stereotypes have been kept aside in very few films but the general notion of the character is more or less the same. The 1980s had a league of movies that portrayed politicians as the villain and police as the hero in the films. It is this stereotyping of power, politics, corruption and politicians that the researcher would like to analyse and find a common link in the characterization and pasteurization of the same. This dissertation will analyse three films Raanjhanaa, Paa and Sarkar. It is this cinema showcasing politics is mostly a negative light. It unlike Hollywood has not glorified the deeds of the good doings of politicians instead always shown the dirt, filth and negative side of politics linking it to the underworld. This paper will try and find similar links/ traits to the portrayal and study it in detail. -
Portrayal of Pakistanis in Kabir Khan films /
The Bollywood cinema has metamorphosed into an abiding passion for audience all over the world cutting across demographic and political boundaries. Besides the rather visible signs of the extensive hold that mainstream Hindi cinema has on Particularly the Indian society, the fact remains that, contemporary commercial Hindi films have reflected political and social concerns of all the time. -
Portrayal of Latin American culture and characters in hollywood /
Latin American culture is known to be rich in terms of literature, art, music and history, but is also famous for its conservative attitude. There are however, a few aspects of the Latin American culture that are stereotyped in Hollywood films like their family system, drugs, mafia, religion and society and their economic status. -
PORTRAYAL OF INTRICACIES OF HUMAN RELATIONSHIPS IN SHYAMA PRASAD`S FILMS
Cinema is the mirror of the society; it reflects every aspects of life in the society on screen. All films on screen deals with the portrayal of human intricacies in relationships, but each director has a unique way in portraying the reflected reality through visual medium. Shyama Prasad is a versatile middle stream film maker of Malayalam movie industry. The study mainly aims to analyze his movies (three selected movies) for their uniqueness in portrayal of intricacies of human relationships, which makes them stand out in the crowd by adopting the qualitative (In-depth interviews, focus group discussion and content analysis) method. -
Portrayal of India in western music videos /
The purpose of the study is to find out whether the perception of India in the western music videos are negative or positive. The researcher focuses on the various elements used by the creators of the music videos which depicts India. The songs selected by the researcher are the ones in which India is majorly shown (visuals, clothes, beats, etc.). The researcher conducts a perspective analysis from the point of view of experts from the music and the cultural studies background. -
Portrayal of cricket in bollywood movies from 2011-2016 /
Movies and cricket are two of the big entertainment and revenue generating industries in India. The first feature film in India can be dated back to 1913 while cricket had its emergence in the 16th century itself. Cricket can also be seen in movies in recent years. This study focuses on films which were released between the years 2011 and 2016 which have depicted cricket in them. The study uses the Representation theory by Stuart Hall as a theoretical framework. -
Portrayal of branding of Kerala through bollywood movies /
India‟s top film industry like Bollywood portrays the heterogeneity of India to the world. Bollywood industry tries to portray the vast heterogeneous features of different states in India. The objective of this study is to observe and analysis the way Kerala is being branded in Bollywood movies. The study will look into the inclusive branding and representation of Kerala in aspects such as culture, religion, tradition, language, local people and destination. -
Portrait segmentation using ensemble of heterogeneous deep-learning models
Image segmentation plays a central role in a broad range of applications, such as medical image analysis, autonomous vehicles, video surveillance and augmented reality. Portrait segmenta-tion, which is a subset of semantic image segmentation, is widely used as a preprocessing step in multiple applications such as security systems, entertainment applications, video conferences, etc. A substantial amount of deep learning-based portrait segmentation approaches have been developed, since the performance and accuracy of semantic image segmentation have improved significantly due to the recent introduction of deep learning technology. However, these approaches are limited to a single portrait segmentation model. In this paper, we propose a novel approach using an ensemble method by combining multiple heterogeneous deep-learning based portrait segmentation models to improve the segmentation performance. The Two-Models ensemble and Three-Models ensemble, using a simple soft voting method and weighted soft voting method, were experimented. Intersection over Union (IoU) metric, IoU standard deviation and false prediction rate were used to evaluate the performance. Cost efficiency was calculated to analyze the efficiency of segmentation. The experiment results show that the proposed ensemble approach can perform with higher accuracy and lower errors than single deep-learning-based portrait segmentation models. The results also show that the ensemble of deep-learning models typically increases the use of memory and computing power, although it also shows that the ensemble of deep-learning models can perform more efficiently than a single model with higher accuracy using less memory and less computing power. 2021 by the authors. Licensee MDPI, Basel, Switzerland. -
Portfolio optimization using simulated annealing and quantum-inspired simulated annealing: A comparative study
Portfolio optimization has been a highly studied problem in financial investment expert systems. The nonlinear constraint portfolio optimization problem cannot be efficiently solved using traditional approaches. This chapter presents a metaheuristic approach to portfolio optimization using simulated annealing (SA). Experiments have been conducted on over 10 years of NASDAQ stock price data. This first-of-its-kind effort is also made to implement the quantum-inspired version of SA (QiSA) for portfolio optimization, and the results are compared with the classical approach. The optimization parameters are chosen using sensitivity analysis, and the results are compared using different statistical measures. Preliminary results show that the QiSA approach is very promising and faster than SA when applied to the portfolio optimization domain. 2024 Elsevier Inc. All rights are reserved including those for text and data mining AI training and similar technologies. -
Portfolio Optimization Using Quantum-Inspired Modified Genetic Algorithm
Optimization of portfolios has an additional level of complexity and has been an area of interest for both financial leaders and artificial intelligence experts. In this article, a quantum-inspired version of an improved genetic algorithm is proposed for the task of portfolio optimization. An effort is made to implement two different genetic versions along with their extension in the quantum-inspired space. Improvements to the popular crossover techniques, viz. (i) arithmetic and (ii) heuristic crossover are proposed to reduce computational time. 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. -
