A review of thermal performance of solar concentrator – the future needs

Abstract Abundant solar energy is freely available almost round the year in India. As per the current scenario of global warming and climatic change, solar energy is the cleanest source in nature. Concentrated solar power (CSP)has hardly contributed to the overall installed solar power capacity in the country. CSP technologies are Parabolic Trough Collector (PTC), Linear Fresnel Reflector (LFR), Paraboloid Dish and Solar Power Tower. This paper presents a review of CSP in solar parabolic dish concentrator to understand thermal aspect like thermal efficiency, optical efficiency, useful heat gain, heat losses, solar irradiation, etc. for various applications and current development. The current scenario of global CSP is discussed to meet the future challenges and need of the society.

Pramod wadate

A comprehensive review of macrotyloma uniflorum: nutritional composition, health benefits, and potential applications.

 ABSTRACT Macrotyloma uniflorum, commonly known as horse gram, is an underused pulse that holds great potential as a supply of nutrition and functional compounds. This review paper aims to provide a comprehensive overview of the nutritional composition, Pharmacological activities, health benefits, and potential applications of Macrotyloma uniflorum. Horsegram has a high amount of protein, dietary fibre, and a variety of vital minerals and vitamins that make up its nutritional profile. Horsegram also has a high content of antioxidants, flavonoids, and phenolic compounds, all of which contribute to its potential health advantages. Horsegram intake has the potential to help manage a number of chronic conditions, including diabetes, obesity, cardiovascular problems, and gastrointestinal disorders, according to many studies. The review investigates the possible health advantages of Macrotyloma uniflorum, emphasising its function in controlling blood sugar, managing weight, lowering cholesterol, and antioxidant activity. Horse gram's medicinal potential is further increased by the presence of bioactive substances that include anti-inflammatory, antibacterial, diuretic, antiobesity, analgesic, anaphylactic action, and anticancer activities. In conclusion, this review paper presents a comprehensive evaluation of Macrotyloma uniflorum, highlighting its nutritional composition, health benefits, and potential applications. The findings underscore the significance of horse gram as a valuable functional food ingredient and encourage further additional investigation of its therapeutic properties for human health and well-being.

Asawari Mansabdar Asawari mansabdar

A memetic algorithm for the inventory routing problem

In this article, we study an Inventory Routing Problem with deterministic customer demand in a two-tier supply chain. The supply chain network consists of a supplier using a single vehicle with a given capacity to deliver a single product type to multiple customers. We are interested in population-based algorithms to solve our problem. A Memetic Algorithm (MA) is developed based on the Genetic Algorithm (GA) and Variable Neighborhood Search methods. The proposed meta-heuristics are tested on small and large reference benchmarks. The results of the MA are compared to those of the classical GA and to the optimal solutions in the literature. The comparison shows the efficiency of using MA and its ability to generate high quality solutions in a reasonable computation time.

Mohamed Salim Amri Sakhri Mohamed salim amri sakhri

E-resources utilisation pattern among the faculty of kempegowda institute of medical sciences, bangalore: a study

This paper examines the utilisation pattern of e-resources by faculty of the Kempegowda Institute of Medical Sciences (KIMS) Bangalore. The purpose of the study is to understand the utilisation pattern of E-resources and frequency of access to the internet by the faculty members of KIMS. The faculty members of health science universities and/or medical colleges are engaged in teaching, research, and their information needs and expectations are diverse and varied. Realising the importance and usefulness of the E-resources, most of the colleges in India and elsewhere generously invested in procuring and create access to eresources to support information needs, teaching, learning, and research studies. The paper highlights the usage of different types of e-resources in health sciences, and also the application of web browsers and search engines in this context by the faculty members of KIMS. The levels of satisfaction among faculty members of KIMS towards the E-resources and barriers in using E-resources have been identified in this study.

Subhash reddy b

Pattern of drug prescribed and drug related problems among hospitalized elderly patients

Prescribing drugs for elderly patients is not an easy task since elderly patients are frequently with comorbid conditions. In Libya, there are no guidelines for the management of medications used in elderly patients and no specialized geriatric health institutions. The aim of this study is to assess the pattern of medication use among hospitalized elderly patients in Sebha Medical Centre and the drug-related problems associated with these patterns. This report is descriptive and retrospective cross-sectional study that is conducted at Sebha Medical Center during 2021. Potential drug-related problems were assessed based on the classification of Hepler and Strand. In this study, out of 195 participants, most of the patients have been given antibiotics (92%). The majority of patients have been prescribed anti-gastric agents, vitamins and anti-thrombotic agents which accounted for 75%, 62% and 55%, respectively. To less extent, anti-hypertensive agents, analgesics and anti-hyperlipidemics were reported by 45%, 43% and 38%, correspondently. Almost all the patients have at least one event of drug-related problem and more than three-quarters of the patients had more than one event of drug-related problems. The highest rate was untreated indications which were reported for 77% then followed by drug use without indication nearly a half of the events 48%. To fewer extent rates were reported: “in improper drug selection”, “drug interaction” and “adverse effects” which were reported for 25%, 23% and 18% of the total events, respectively. Almost all elderly patients have been prescribed antibiotics, analgesics and vitamins. Drug-related problems are predominant prevalent in the clinical practice at the center. This study highlights the importance of activation of clinical pharmacist interventions at hospitals which can contribute to reducing the chance of risk of drug-related problems events among hospitalized elderly patients and ensuring rational drug prescribing in the geriatric clinical settings.

Mediterranean Journal of Pharmacy and Pharmaceutical Sciences Mediterranean journal of pharmacy and pharmaceutical sciences

Bacteriological qualities of sources of domestic water supply and prevalence of typhoid fever in some communities of enugu state, southeast, nigeria: a cross-sectional study

Background: From the public health point of view, the microbiological properties of domestic water supply are the most important parameters of domestic water supply because of the propensity for microbial water-related diseases. In Enugu State, statistics have shown that reported cases of waterborne diseases (including typhoid fever) have been on the increase since 2003. The aim of the study was to determine the bacteriological qualities of domestic water supply and prevalence of typhoid fever in five communities of Enugu State in connection with the rising incidence of typhoid fever in the state. Methods: This was a cross-sectional study of sources of domestic water supply and prevalence of typhoid fever in five rural communities of Ezeagu Local Government Area. 297 copies of structured questionnaire, 10 grab water samples analysed using the membrane filtration method and 227 blood samples collected for Widal test were used to generate the data for the study, analysed as frequency distributions, t-test of means difference and Pearson product moment correlations using MaxStat (version 3.60) statistical software. Results: 2 (40%) of the 5 communities complied with the WHO standard for faecal coliform counts. Prevalence of typhoid fever was high in all the communities (71.4%-100%). Only faecal coliform counts correlated positively and strongly (r=0.69) with prevalence of typhoid fever. Conclusions: Since faecal coliform counts correlated positively and strongly (r=0.69) with prevalence of typhoid fever, improving the bacteriological qualities of domestic water supply may help to reduce the prevalence of typhoid fever.

Emmanuel umegbolu

In covid-19 pandemic; social support requirements and midwifery approaches to women during pregnancy, childbirth and the postpartum period

The novel coronavirus pandemic is affecting the whole world and it is predicted that the process will continue for a long time. The health, economic and social problems caused by this process have greatly affected women as well. In addition to the problems endured by the general population, women are facing additional challenges involving their reproductive health, pregnancy, childbirth and postpartum period. Women are trying to deal with a range of concerns, from difficulties in accessing family planning services to being unable to meet their own basic reproductive health needs. Under the pandemic conditions, it has become increasingly difficult for social services to respond sensitively to women's particular needs. The needs of coronavirus patients take precedence, and the women’s needs remain in the background. Women are facing stress, anxiety, fear, as well as disease. So, midwifery practices need to be revised to adapt to the pandemic conditions. This revision must involve not only technical issues but also psychosocial adjustments. Women have been demanding home births on social media, and this is a subject that require some legal regulations. Respect for women's birth is one of their most fundamental rights. National criteria should be developed to accommodate the support structures needed for a home birth. The social support that midwives offer women during pregnancy, childbirth and the postpartum period, play a key role. Since it is important to increase the awareness of midwives in this regard, this article deals with women's needs for social support and possible midwifery approaches for supporting women through their pregnancy, childbirth, and the postpartum period.

Reyhan Aydin Doğan Reyhan aydin doğan

Service quality in the hospitality industry

Service quality in the hospitality industry becomes one of the most important factors for gaining a sustainable competitive advantage and customers’ confidence in the highly competitive marketplace, and therefore service quality can give the hospitality industry a great chance to create competitive differentiation for organisations. It is thus considered as a significant core concept and a critical success factor in the hospitality industry. A successful hotel delivers excellent quality service to customers, and service quality is considered the life of hotel. Many benefits can be achieved by service quality such as establishing customer satisfaction, contributing to business image, establishing customer loyalty, and providing a competitive advantage to a business. Service quality performance can mean different to different people, for example, employees may show higher perceptions of service quality than customers perceived, and thus managers and their employees never like to identify deficiencies in service quality

Mukhles m. al-ababneh

Junk food-induced obesity- a growing threat to youngsters during the pandemic

Introduction: Obesity has been declared an epidemic that does not discriminate based on age, gender, or ethnicity and thus needs urgent containment and management. Since the third wave of COVID-19 is expected to affect children the most, these children and adolescents should be more cautious while having junk foods, during covid situations due to the compromise of Immunity in the individuals and further exacerbating the organ damage. Methodology: A PAN India survey organized by the Centre for Science and Environment (CSE) among 13,274 children between the ages 9–14 years reported that 93% of the children ate packed food and 68% consumed packaged sweetened beverages more than once a week, and 53% ate these products at least once in a day. Almost 25% of the School going children take ultra-processed food with high levels of sugar, salt, fat, such as pizza and burgers, from fast food outlets more than once a week. Children and adolescents who consume more junk food or addicted to such consumption might be even more vulnerable during the third wave, which will significantly affect the younger category. Conclusion: There is an urgent need to spread awareness among children and young adults about these adverse effects of junk food. There is no better time than now to build a supportive environment nurturing children and young adults in society and promising good health.

Ankul singh

An empirical analysis of use of tiktok by management students in pune city

TikTok is a mobile application which is available for Android & IOS platforms. It is used for video creation & video sharing purpose. It was launched in China in 2016. The application helps users to become a video creator, so that they can share videos regarding the things they are passionate about. It competes with various social media applications like Facebook, Instagram and YouTube. (1) The social media video app ‘TikTok’ is witnessing highest growth in all around the world. TikTok, which was earlier known as ‘Musicl.ly’ has now user base in 150 countries. It has 800 Million monthly active users all around the world. Their mobile application has downloaded 1.5 Billion times. Average time spent on TikTok is 52 minutes. 83% of its users are also creates videos on the platform. (2) Youth is a major user of this application. College students use it in large numbers. College students use various other social media applications such as Facebook, Instagram, LinkedIn, Snapchat, Twitter etc. These applications are present in market since a decade. But a new entrant, TikTok has seen a tremendous growth in a short duration of time. Hence, researcher has focused on use of TikTok by students. Researcher has limited the focus on management students from Pune city.

Nitin Mali Nitin mali

On the impact of debris accumulation on power production of marine hydrokinetic turbines: insights gained via les

We present a series of large-eddy simulations to systematically investigate the impact of debris accumulation on the hydrodynamics and power production of a utility-scale marine hydrokinetic (MHK) turbine under various debris loads lodged on the upstream face of the turbine tower. The turbine blades are modeled using turbine resolving, actuator line, and actuator surface methods. Moreover, the influence of debris on the flow field is captured by directly resolving individual logs and employing a novel debris model. Analyzing the hydrodynamics effects of various debris accumulations, we show that an increase in the density of debris accumulation leads to more flow bypassing beneath the turbine blade. This, in turn, reduces the flow momentum that reaches the MHK blades at the lower depths, inducing significant fluctuation in power production. Further, it is shown that debris-induced turbulent fluctuations contribute to significant variability in the MHK turbine’s power production.

Hossein Seyedzadeh Hossein seyedzadeh

Large eddy simulation of a utility-scale horizontal axis turbine with woody debris accumulation under live bed conditions

Tidal and riverine flows are viable energy sources for consistent energy production. Installing and operating marine hydrokinetic (MHK) turbines requires assessing any potential impact of debris accumulation on turbine performance and sediment transport. More specifically, MHK devices may alter the natural sediment transport processes and cause debris accumulation, disrupting the natural sediment dynamic. In turn, these processes could affect the turbine’s performance. We carried out a series of large-eddy simulations coupled with bed morphodynamics, introducing various debris loads lodged on the upstream face of a utility-scale turbine tower. The objective is to systematically investigate the impact of debris accumulation on the performance and hydro-and morpho-dynamics interactions of the horizontal-axis MHK turbine under rigid and mobile bed conditions. To that end, we (1) employed the actuator line and surface methods for modeling turbine blades and the nacelle, respectively,(2) directly resolved individual logs, and (3) solved the Exner equation to obtain the instantaneous bed deformation of the mobile bed. Our analysis revealed that while the spinning rotor amplifies scour around the pile, debris accumulation modifies the sediment dynamics of the system. Also, it found that morphodynamic processes accelerate the wake recovery, slightly enhancing the turbine's performance.

Hossein Seyedzadeh Hossein seyedzadeh

Dimethyl sulfoxide in cryopreservation: an overview

Cryopreservation is a process that preserves intact living cells, tissues or any other biological constructs by cooling and storing the samples to very low temperatures in order to maintain their viability and to save them for future use. At very low temperatures, enzymatic and chemical activities that may cause harm to the biological material are effectively stopped. Cryopreservation methods look to reach very low temperatures without causing further harm caused by the creation of ice crystals during freezing. Cryopreservation human samples for storage including variety of diseases such as cancer, genetic and degenerative disorders and bio-banking. This review aims to describe and highlight dimethyl sulfoxide in cryopreservation. Dimethyl sulfoxide is a non-toxic solvent and is one of the most commonly used pharmaceutical agent with a varied range of pharmacological actions including membrane penetration, anti-inflammatory effects and local analgesia as well as weak bacteriostatic. The main use of dimethyl sulfoxide is a vehicle for some drugs to enhancing the action of the drug and helping penetration of other drugs into the skin. However, dimethyl sulfoxide has been the cryopreservative agent of choice in situation to its exceptional performance in mitigating freezing-related damages. It is frequently used in cell banking applications as a cryoprotectant. When added to media, it prevents intracellular and extracellular crystals from forming in cells during the freezing process. There has been a concern over the toxicity of dimethyl sulfoxide and its potential side effects in different highly concentration after administration to patients. Therefore, there has been growing demand for robust dimethyl sulfoxide for cryopreservation method that can improve safety and maintain potency and efficacy

Mediterranean Journal of Pharmacy and Pharmaceutical Sciences Mediterranean journal of pharmacy and pharmaceutical sciences

A review on prevention of diseases through homoeopathy

Homoeopathy is one of the latest systems of medicine discovered at the latter part of 18th century, first rose to prominence in the 19th century due to its success in treating epidemics and is currently second largely utilized system of medicine globally. Prophylaxis through Homoeopathy has been strongly promulgated by stalwarts and popular among the general public in the recent times, but still controversy revolves around it. Aim of the study is to review the available literature for analyzing the usefulness of Homoeopathy in prophylaxis of human, animal as well as plant diseases. A comprehensive search has been made in electronic database aimed to target the available literature of various levels of evidence. Examples are summarized under different areas of applicability of homeopathic medicine as prophylactic. Currently there is convincing evidence to support effectiveness of Homoeopathy in prophylaxis, though sparse. More rigorous research studies are warranted to enlarge the horizon of its application.

Dr deepthi gilla

Social factors influencing mental health: insights, preventive strategies, and policy recommendations

Introduction: Mental health disparities are deeply entrenched within the fabric of societal inequalities, shaped by structural factors that perpetuate intergenerational cycles of disadvantage. Addressing these disparities is crucial for promoting social justice and improving public health outcomes. Aim: This paper aims to synthesize high-quality evidence to elucidate the causal relationships between social determinants and mental health outcomes. It prioritizes pervasive social determinants that influence major mental disorders across the life course and outlines preventive strategies to mitigate these effects. Methodology: A comprehensive literature review was conducted, focusing on publications from the Global North from 2014 to 2024, to explore the influence of social determinants on mental health. Keywords such as "social determinants," "mental health outcomes," "preventive strategies," and "vulnerable populations" guided the search across databases like PubMed and Google Scholar. Results: The review highlights significant associations between mental health and social determinants such as socioeconomic status, racial and ethnic marginalization, and exposure to adverse environments. It underscores the heightened vulnerability of marginalized groups, including refugees, LGBTQ+ individuals, and those living in poverty. The paper introduces a preventive framework to guide primary prevention efforts and reviews both primary and secondary strategies to improve mental health equity. Conclusion: Strategic interventions aimed at the root social causes of mental health disparities can substantially enhance public mental health. This paper provides seven strategic recommendations focused on social justice, offering a roadmap for researchers, policymakers, and public health professionals to address these pressing issues.

Prof.K.C Yadav Prof.k.c yadav

Power sector reforms in nigeria: implications for agro-manufacturing industry

Abstract The main objective of this paper is to examine the nexus between the reforms that have been carried out in Nigeria concerning the power sector, and the implications of the reforms on the transformation of agro-allied industries. The power sector, no doubt, can be said to have the potential that can propel national development considering the overall importance of energy to the survival of the nation in terms of job creation, industrial development and sustenance as well increase in revenue generation and Foreign Direct Investment opportunities, among others. The unfortunate situation, however, is that in spite of a number of policies enunciated by successive governments aimed at improving on the power sector, not much has been achieved. The multiplier effect of this kind of development has been seen in the widespread epileptic power shortages, downward spiral of efforts towards industrial development drive; unemployment, shortage of national revenue accruing to government coffers, bourgeoning and rising poverty levels, to mention but a few. All of these have further contributed to the growing army of problems currently being witnessed in the country at the moment. This study is a theoretical exposition of the existing works of scholars and experts in the broader field of power sector reforms. The paper is exploratory in structure and method of its investigation. The study concludes and recommends that in view of the prevailing socio-economic circumstances in Nigeria, genuine reforms in the energy sector devoid of political rhetorics will go a long way in mitigating some of the challenges of contemporary times in the power sector

Canice Erunke Canice erunke

A case report on young adult with wilsons disease

Wilsons disease is a rare inherited disorder which is characterized by impaired copper excretion which leads to excessive deposition of copper in many tissues and organs like brain, liver, and eye. This is also characterized by Kaiser-Fleischer ring, low serum ceruloplasmin levels and elevated urinary copper excretion [1]. A 26year male patient came to the neurology department with chief complaints of involuntary tremors of both hands and difficulty in walking in the last one month associated with swaying to one side in the last 20 days. On examination the patient is having Kaiser-Fleisher ring positive and upon further investigation Magnetic resonance imaging brain was performed which revealed the features in favor of Wilson’s disease. And for this condition the patient is treated with chelating agents and benzodiazepines. Key words: Wilson’s Disease, Kaiser- Fleisher ring, Chelating agents

Dr VENKATA RAMA RAO NALLANI Dr venkata rama rao nallani

What really matters: experiences of emergency remote teaching in university teaching and learning during the covid-19 pandemic

The COVID-19 pandemic and related lock downs have accelerated the need for online and remote teaching within university settings. However, due to the abrupt nature of the pandemic, many academic staff were not prepared for this forced transition. This study aimed to understand how the pandemic affected academics at a New Zealand university, with regards to their transition to emergency remote teaching. Specifically, it explores the challenges as well as benefits academics experienced during this transition. Recommendations for future online learning are also made. Academic staff (N 67) at a New Zealand University completed an anonymous online survey. Quantitative data were analyzed statistically using descriptive and inferential statistics, while qualitative data were analyzed thematically. Major challenges experienced included miscommunication from the university, concerns about student access to technology, finding a quiet space to work, lack of digital competence skills, too much screen-time, managing work hours, and work/ life balance. Benefits included enhanced flexibility, enhanced teacher creativity, increasing autonomy of learners, and reduced commute time. Looking forward, academic staff desired future teaching to include blended learning and virtual immersion. New strategies of working remotely are being explored to facilitate teaching and learning while catering to the preferences and skills of both educators and students. Our findings honor the considerable agility of academic staff who sought to sustain and enhance excellence in remote education. At an institutional level our findings point to the need for staff to be supported by their institutions as they further refine their work within new-found spaces

Gwen Erlam Gwen erlam

Insecurity in a democratic state: towards reformulating roles of traditional institutions for enhanced national security in nigeria

The main focus of this paper is to examine the relationship between insecurity in Nigeria and how traditional institutions such as traditional monarchical system can be used as veritable tool to curtail increasing insecurity in a democratic system such as Nigeria. The pervasive nature of insecurity,though,not an entirely Nigerian problem, has been trending of late, andhence, become a huge source of worry for scholars,experts,public commentators and the international community at large.The menace of insecurity finds expression in wanton killings, kidnapping,farmers-herders conflicts, rape, communal clashes, militia activities, ethnic secessionist agitations and many other strands of violence. The multiplier effects of all these challenges have been very devastating in terms of the recent attacks witnessed all over the country in recent times. This study observes that most of the people engaged in some of these atrocities might be well known to traditional rulers in the communities where they come from. This is because traditional rulers are closest to the people. The work is an exploratory study and relies solely on literature and works of experts in the broader field of security studies for investigation. The paper sums up a conclusion and recommends that there is a need for the adoption of both vertical and horizontal approaches to tackle the menace of insecurity, particularly, using the instrumentality of traditional institutions as a point of departure.

Canice Erunke Canice erunke

Improving the performance of double-expansion chamber muffler using dielectric beads; optimization using factorial design

Purpose Noise pollution is a common health hazard worldwide which is emitted along with chemical air pollutants, simultaneously from many sources. Some studies have been conducted to control these pollutants, simultaneously with promising results being achieved. Dielectric beads have been used in air pollution control technologies, successfully and probable effectiveness of them in noise reduction can be promising in dual use of them in the exhausts emitting noise and air pollution, simultaneously. Methods In order to investigate the effectiveness of dielectric beads in noise reduction, two types of them; namely glass and ceramic beads, were placed separately inside the connecting tube of a double-expansion chamber muffler. Then the transmission loss (TL) of muffler was examined using impedance tube. A factorial design was used to evaluate and optimize the effect of noise related parameters on TL of such a system. Results Results show that the presence of dielectric beads has significant effect on TL of muffler. The maximum TL was obtained as 74.76 dB for muffler with ceramic beads, under the optimal condition of 5250 Hz and 120 dB. Measurement of TL and sound absorption coefficient (SAC) of glass and ceramic beads showed that the noise reduction in muffler with ceramic and glass beads is probably due to SAC in ceramic beads and noise reflections in glass beads, respectively. Conclusion These results promise the dual use of dielectric beads in the exhausts emitting noise and air pollution simultaneously.

Niloofar

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