bluuebunny/crossref_metadata_2025 huggingface dataset:
भारतीय परिपेक्ष्य में प्राकृतिक खेती की चुनौतियां एवम भविष्य
Authors: प्रकाश वेद , घासल प्रकाश चन्द , जीत पवन , सुंदरम प्रेम  कुमार
Published: April 2022

सामान्य उपभोक्ताओं में, खाद्य गुणवत्ता और सुरक्षा दो महत्वपूर्ण कारक हैं जिन पर लगातार ध्यान दिया जा रहा है। सामान्य उपभोक्ताओं में परंपरागत रूप से उगाए गए खाद्य पदार्थों के कारण स्वास्थ्य पर अत्यधिक प्रतिकूल प्रभाव पड़ता है। परंपरागत रूप से उगाए गए खाद्य पदार्थों में उच्च कीटनाशक अवशेष, अधिक नाइट्रेट, भारी धातु, हार्मोन एवं एंटीबायोटिक की उपस्थिति के कारण स्वास्थ्य पर अत्यधिक प्रतिकूल प्रभाव पड़ता है। प्राकृतिक खेती को फसल उत्पादन प्रणाली के रूप में स्वीकार किया जाता है जो परंपरा, नवाचार और उन्नत कृषि प्रौद्योगिकी के संयोजन से मिट्टी, पारिस्थितिकी तंत्र और लोगों के स्वास्थ्य को बनाए रख सकती है। आम तौर पर किसानों द्वारा अपनाए जाने वाले प्रमुख घटकों में अनुपचारित बीज, जैव खाद और जैव उर्वरक, जैव कीटनाशक, खादध्वर्मीकम्पोस्ट और फसल विविधीकरण शामिल हैं। जैविक रूप से उगाए गए खाद्य पदार्थों की लोकप्रियता उनके पोषण और स्वास्थ्य लाभ के कारण दिन-ब-दिन बढ़ती जा रही है। प्राकृतिक खेती से पर्यावरण की भी रक्षा होती है और एक राष्ट्र पर अधिक सामाजिक-आर्थिक प्रभाव पड़ता है।
पशुओं में शल्य चिकित्सा संबंधित बिमारी एवं उसका प्राथमिक उपचार
Authors: कुमार राजेष , कुमार बिपिन
Published: April 2022

इस लेख के माध्यम से शल्य चिकित्सा संबंधित अनेक बिमारीयां जैसे घाव, घाव में किड़े लगना, पैर की हड्डी टुटना, पेषाब का बंद होना, थन में गाँठ का बनना, हर्निया इत्यादि विशेषकर घाव, फ्रैक्चर, हर्निया एवं पेषाब का बंद होना, बीमारियों के बारे में विस्तृत रूप से चर्चा कर किसान भाईयो को जागरूक करने का प्रयास किया गया है।
ड्रोन : कृषि मे उपयोग के लिए आधुनिक बहूद्देशीय यंत्र
Authors: सौरभ कीर्ति , कुमार आतिश , रोहित जागृति , सिंह अनिल कुमार , उपाध्याय आशुतोष
Published: April 2022

समय के साथ कृषि में भी परिवर्तन तेजी से हो रहा है। पहले के समय में कृषि कार्य के लिए ज्यादा मजदूरों की आवश्यकता होती थी। और मजदूर आसानी से मिल भी जाते थे परन्तु बढ़ते समय के साथ कृषि में मजदूरों की संख्या कम होने लगी इस कमी को पूरी करने के लिए तकनीकी का सहारा लिया। और आज के समय में हम कृषि के लगभग सभी क्षेत्रों में मशीनी टूल्स और कई तरह के तकनीक का उपयोग कर रहे हैं। इन्हीं तकनीकों में ड्रोन एक महत्वपूर्ण भूमिका निभा रहा है।
The Tension Between Growth and Innovation Led Greenhouse Gas Reductions in the Information and Communication Technology and Media and Entertainment Sector: A Case Study of AT&T Inc.
Authors:   School of Earth and Environmental Sciences, University of Queensland, Australia, Keleher Annie , Dargusch Paul ,   School of Earth and Environmental Sciences, University of Queensland, Australia, Hill Genia ,   School of Earth and Environmental Sciences, University of Queensland, Australia
Published: April 2022

With scientific consensus on climate change and growing public concern, firms are recognising the multiple risks associated with inaction on their Greenhouse Gas (GHG) emissions. The Information and Communications Technology (ICT) and Entertainment & Media (E&M) sectors provide essential communications services, that are foundational for much of the modern world's social and economic systems. The ICT sector has already demonstrated success in innovations that enable emissions reductions. At the same time, the ICT industry is demanding an increasing share of global energy resources. AT&T Inc. is a significant actor in the ICT and E&M sectors providing a valuable case study for carbon management approaches and outcomes. They have demonstrated a year-on-year reduction in their emissions largely driven through abatement strategies in their fleet, electricity generation, and consumer electricity use. While technological innovations have historically neutralised the increasing demand for energy, this trend is predicted to shift in the coming decade. Achieving AT&T’s 2035 target of being carbon neutral will require significant efforts in transitioning to renewable energy sources, at the same time as developing technological solutions for the wider community.
Frailty Factors and Outcomes in Patients Undergoing Orthopedic Surgery: Protocol for a Systematic Review and Meta-analysis
Authors: Wang Duanyang , Yin Pengbin , Li Yi , Chen Ming , Cui Xiang , Cheng Shi , Lin Yuan , Yan Jinglong , Zhang Licheng , Tang Peifu
Published: April 2022

Background

Frailty is an aggregate expression of susceptibility to adverse health outcomes because of age- and disease-related deficits that accumulate across multiple domains. Previous studies have found the presence of preoperative frailty is associated with an increased risk of adverse outcomes. The number of older adults undergoing orthopedic surgery is rapidly increasing. However, there has been no evidence-based study on the relationship between frailty and outcomes in patients undergoing orthopedic surgery.

Objective

The aims of this study are to investigate the association between frailty and outcomes in patients who underwent orthopedic surgery as well as patient factors associated with frailty.

Methods

The methods to be used for this systematic review are reported according to the PRISMA-P (Preferred Reporting Items for Systematic Review and Meta-analysis Protocols) 2015 checklist. An extensive search will be conducted in PubMed, Embase, the Cochrane Library, and other mainstream databases. Any study where patients undergoing orthopedic surgery were assessed using a defined or validated measure of frailty and the association of frailty with patient factors and/or outcomes was reported will be included. A total of 2 researchers will independently screen articles for inclusion, with disagreements resolved by a third reviewer. We will perform a narrative synthesis of the factors associated with frailty, prevalence of frailty, effect of frailty on patient outcomes, and interventions for patients who are frail. A meta-analysis focusing on individual factors associated with frailty and the effect of frailty on patient outcomes will be performed, if applicable. The risk of bias will be evaluated. A subgroup analysis and sensitivity analysis will be performed.

Results

Literature searches were conducted in September 2021 and the review is anticipated to be completed by the end of July 2022.

Conclusions

This systematic review and meta-analysis will provide an overview of frailty and investigate the relationship between frailty and patient outcomes as well as the relationship between patient factors and frailty in patients undergoing orthopedic surgery. This study could potentially increase patients’ awareness of the outcomes associated with frailty, compel clinical specialties to further acknowledge the concept of frailty, and enhance the development of assessment instruments and tools for frailty.

Trial Registration

PROSPERO CRD42020181846; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=181846

International Registered Report Identifier (IRRID)

DERR1-10.2196/28338
Feasibility of Mobile Health and Social Media–Based Interventions for Young Adults With Early Psychosis and Clinical Risk for Psychosis: Survey Study
Authors: Franco Olivia H , Calkins Monica E , Giorgi Salvatore , Ungar Lyle H , Gur Raquel E , Kohler Christian G , Tang Sunny X
Published: April 2022

Background

Digital technology, the internet, and social media are increasingly investigated as promising means for monitoring symptoms and delivering mental health treatment. These apps and interventions have demonstrated preliminary acceptability and feasibility, but previous reports suggest that access to technology may still be limited among individuals with psychotic disorders relative to the general population.

Objective

We evaluated and compared access to and use of technology and social media in young adults with psychotic disorders (PD), young adults with clinical risk for psychosis (CR), and psychosis-free youths (PF).

Methods

Participants were recruited through a coordinated specialty care clinic dedicated toward early psychosis as well as ongoing studies. We surveyed 21 PD, 23 CR, and 15 PF participants regarding access to technology and use of social media, specifically Facebook and Twitter. Statistical analyses were conducted in R. Categorical variables were compared among groups using Fisher exact test, continuous variables were compared using 1-way ANOVA, and multiple linear regressions were used to evaluate for covariates.

Results

Access to technology and social media were similar among PD, CR, and PF participants. Individuals with PD, but not CR, were less likely to post at a weekly or higher frequency compared to PF individuals. We found that decreased active social media posting was unique to psychotic disorders and did not occur with other psychiatric diagnoses or demographic variables. Additionally, variation in age, sex, and White versus non-White race did not affect posting frequency.

Conclusions

For young people with psychosis spectrum disorders, there appears to be no “technology gap” limiting the implementation of digital and mobile health interventions. Active posting to social media was reduced for individuals with psychosis, which may be related to negative symptoms or impairment in social functioning.
Decreased Physical Activity Among Youth Resulting From COVID-19 Pandemic–Related School Closures: Natural Experimental Study (Preprint)
Authors: Grimes Amanda , Lightner Joseph S , Eighmy Katlyn , Steel Chelsea , Shook Robin P , Carlson Jordan
Published: April 2022

BACKGROUND

The COVID-19 pandemic has resulted in the closure of schools and may have inadvertently resulted in decreased physical activity for youth. Emerging evidence suggests that school closures due to the COVID-19 pandemic could have hastened the inactivity of youth, possibly due to a lack of structure outside of school and increased access to sedentary activities.

OBJECTIVE

The purpose of this study was to assess changes in physical activity from pre–school closure (before the pandemic) to post–school closure (during the pandemic) among youth in spring 2020.

METHODS

This study used a natural experimental design; youth were enrolled in a physical activity study prior to the lockdown, which was enforced due to the pandemic. The number of device-assessed steps per day and moderate-to-vigorous physical activity minutes per week were measured by using a Garmin Vivofit 4 (Garmin Ltd) accelerometer over 8 weeks. Mixed effects models were used to compare physical activity variables, which were measured before and during the COVID-19 pandemic.

RESULTS

Youth were primarily Hispanic or Latinx (8/17, 47%) and female (10/17, 59%). The number of daily steps decreased by 45.4% during the school closure, from a pre–school closure mean of 8003 steps per day to a post–school closure mean of 4366 steps per day. Daily moderate-to-vigorous physical activity decreased by 42.5%, from a pre–school closure mean of 80.18 minutes per week to a post–school closure mean of 46.13 minutes per week.

CONCLUSIONS

Youth are engaging in roughly half as much physical activity during the school closure as they were prior to the school closure. If additional evidence supports these claims, interventions are needed to support youths’ engagement in physical activity in the Midwest.
An mHealth Self-management System for Support Children With Acute Lymphocytic Leukemia and Their Caregivers: Qualitative Co-design Study (Preprint)
Authors: Mehdizadeh Hamed , Asadi Farkhondeh , Emami Hassan , Mehrvar Azim , Nazemi Eslam
Published: April 2022

BACKGROUND

The unique features of smartphones have extended their use in different fields, especially in the health care domain. These features offer new opportunities to support patients with chronic conditions by providing them with information, education, and self-management skills. We developed a digital self-management system to support children with cancer and their caregivers in Iran (low- and middle-income country).

OBJECTIVE

This study is aimed at the development and preliminary evaluation of a cancer self-management system (CanSelfMan) tailored to the needs of children with cancer and their parents or caregivers.

METHODS

This study was conducted in collaboration with a multidisciplinary team between January and February 2020 at MAHAK’s Pediatric Cancer Treatment and Research Center. We developed a self-management system in six stages: requirement analysis, conformity assessment, preparation of educational content, app prototyping, preliminary evaluation, and developing the final version.

RESULTS

A total of 35 people (n=24, 69% parents and n=11, 31% children) volunteered to participate in the study. However, only 63% (15/24) of parents and 73% (8/11) of children were eligible to participate. By adopting a user-centered design approach, we developed a mobile app, CanSelfMan, that includes five main modules (knowledge base, self-management tips, self-assessment report, ask a question, and reminders) that provide access to reliable information about acute lymphocytic leukemia and the self-management skills required for side effect measurement and reporting. A web-based dashboard was also developed for oncologists and included a dashboard to monitor users’ symptoms and answer their questions.

CONCLUSIONS

The CanSelfMan app can support these groups by providing access to reliable information about cancer, facilitating communication between children or parents and health care providers, and helping promote medication adherence through a reminder function. The active participation of the target group can help identify their needs. Therefore, through the involvement of stakeholders such as patients, caregivers, and oncologists in the design process, we improved usability and ensured that the final product was useful. This app is now ready to proceed with feasibility studies.
Home Delivery of Water for Caries Prevention in Latinx Children (“Sediento por una Sonrisa,” Thirsty for a Smile): Protocol for a Single-Arm Feasibility Study (Preprint)
Authors: Cunha-Cruz Joana , Ko Linda K , Mancl Lloyd , Rothen Marilynn L , Harter Catherine , Davis Stephen , Koday Mark
Published: April 2022

BACKGROUND

Dental caries has significant public health implications afflicting young children. In addition to low social economic status, the most prominent risk factor for early childhood caries is sugar in the diet, particularly sugar-sweetened beverages. Dental treatment for caries in young children is commonly performed under general anesthesia and a significant proportion of children require repeated treatment. Interventions to reduce sugar-sweetened beverage consumption could lead to reduced rates of retreatment for dental caries in young children.

OBJECTIVE

This protocol describes the rationale, design, and methods of the “Thirsty for a Smile” feasibility study. The aim of the study is to assess the feasibility, acceptability, and appropriateness of a dietary intervention promoting water consumption in lieu of sugar-sweetened beverages among young patients, mostly from Latino heritage.

METHODS

This protocol describes a single-arm feasibility study. Twenty-one dyads of children and their caregivers will be recruited. Children between 2 and 9 years old who recently had treatment under general anesthesia for early childhood dental caries will be eligible to participate. The intervention has two components: (1) environmental, in which bottled water is delivered to participants’ homes; and (2) behavioral, in which caregivers will receive patient-centered counseling to increase children’s water intake and reduce sugar-sweetened beverages consumption. Dental caries and anthropometric data will be collected at examination during baseline and final visits. The primary outcome is feasibility and secondary outcomes are acceptability and appropriateness of the intervention.

RESULTS

Funding has been obtained from the National Institute of Dental and Craniofacial Research and the University of Washington approved the study. The feasibility study was conducted from March to November 2019.

CONCLUSIONS

This feasibility study will test the study processes prior to a two-arm randomized controlled trial to determine feasibility and acceptability of the intervention and study procedures. This study may provide useful information for other researchers attempting to test similar interventions.

INTERNATIONAL REGISTERED REPORT

RR1-10.2196/37200
Strategies used by Heads of Secondary Schools in Managing Students' Discipline for Academic Achievement in Ilemela District, Mwanza, Tanzania
Authors: Simeo Rebeca , Tangi Felista
Published: April 2022

The strategy to maintain student discipline in secondary school is a crucial which guide students for future self-sustainability and the right to learn since a well-disciplined student learn without any distraction. The study examined the strategies used by heads of secondary schools in managing indiscipline problems for students’ academic achievement in Ilemela District in Mwanza Region, Tanzania. The study used convergent parallel mixed research design and applied assertive discipline theory. Data were collected from 113 respondents using questionnaires and interview guide. Qualitative data was analyzed thematically and quantitative data were analyzed through descriptive statistic with the help of the SPSS Version 20, IBM, USA. The study revealed that the strategies used to curb the indiscipline cases include the use of guidance and counseling, cooperation between teachers and parents, provision of positive and negative rewards, and rules and regulations have to be enacted. The study recommended that teachers should have good relationship with both parents and students, parents should play their parenting roles effectively.
Social Distancing and Monitoring Robot for Queue Management
Authors: Jadhav Tejal , Palav Kshitij , Dandge Shubham , Kale Saurabh , Dange Jyoti
Published: April 2022

Abstract: Since the COVID-19 pandemic took the world by storm, governments around the world have taken tough but necessary measures to control its spread. During the COVID-19 pandemic, social distancing was widely used as a non-pharmaceutical prevention measure. So we designed social distancing monitoring robot that aims to limit the spread of Covid by measuring the distance between individuals in queues. This system is very essential for banks, government offices, shopping malls, schools, and theatres, among others, where long queues can last for hours every day. Furthermore, this robot also consists automatic hand sanitization and contactless temperature measurement. The design and working of social distancing Robot, Contactless Human Body Temperature and Sanitization is presented in this study. Keywords: COVID-19, Pandemic, Social Distancing, MLX90614 Sensor, hand sanitization.
Agriculture Crop Yield Prediction Using Machine Learning
Authors: Hina Firdous , Hasan Dr. Mohd. Tahseenul
Published: April 2022

Abstract: In our suggested system, we employed a vast dataset that included all of India's states, whereas in the old system, just a single state was considered. These suggestions may be extracted and used to educate the farmers. The farmer can have a better understanding of the crops to cultivate by using a pictorial depiction. Machine Learning Techniques develops a well-defined model with the data and helps us to attain predictions. Agricultural issues like crop prediction, rotation, water requirement, fertilizer requirement and protection can be solved. Due to the variable climatic factors of the environment, there is a necessity to have a efficient technique to facilitate the crop cultivation and to lend a hand to the farmers in their production and management. This may help upcoming agriculturalists to have a better agriculture. A system of recommendations can be provided to a farmer to help them in crop cultivation with the help of data mining. To implement such an approach, crops are recommended based on its climatic factors and quantity. Data Analytics paves a way to evolve useful extraction from agricultural database. Crop Dataset has been analyzed and recommendation of crops is done based on productivity and season Keywords: Machine learning, Agriculture techniques, crop predictions
A Study of the Reliability and Validity of Standard Tools for the Pattern Identification of Gastroesophageal Reflux Disease
Authors: Cho Yun-jae , Ha Na-Yeon , Ko Seok-Jae , Park Jae-Woo , Kim Jinsung
Published: April 2022

Purpose: The standard tool for the pattern identification is used for identifying patterns in patients using a questionnaire. The purpose of this study is to reorganize the standard tool for the pattern identification of gastroesophageal reflux disease (GERD) developed in 2017 and to analyze the reliability and validity of the standard tool for pattern identification by applying it to GERD patients.Methods: To reorganize the standard tool for the pattern identification of GERD developed in the previous study, we searched the literature in the main databases, OASIS (Oriental Medicine Advanced Searching Integrated System) and CNKI (China National Knowledge Infrastructure). We added the search results to the data used in the previous study and went through the reorganizing courses, such as evaluating the validity of the translation, the Delphi technique, and a small survey. After reorganization, the patients who visited the Kyunghee University Korean Medicine Center for GERD symptoms were provided the questionnaire, including the reorganized standard tool for pattern identification. We analyzed the survey results to evaluate their reliability and validity.Results: Fifty patients completed the questionnaire. Reliability analysis results showed a pattern identification match rate of 86%, Cronbach’s α coefficient of 0.834, and intraclass correlation coefficient of 0.907. The Mann–Whitney U test and logistic regression were implemented to check the relations between the survey questions and pattern identification results; the Pearson correlation, compared with other scales, showed a moderate score.Conclusion: We reorganized the standard tool for the pattern identification of GERD to be updated on current issues and so that it is easily used. The analysis results of the questionnaire showed that the reorganized standard tool had high reliability and moderate validity.
A Rare Occurrence of Cholecystogastric Fistula Mimicking Perforated Peptic Ulcer Symptoms: A Case Report
Authors: Torabi Hossein , Shirini Kasra , Shirini Dorsa , Ghaffari Rona
Published: April 2022

Cholecystogastric fistula is one of the rarest and most life-threatening
complications of gallbladder stone disease. This disease can mimic other
diseases such as perforated peptic ulcers and is too hard to be
diagnosed preoperatively. It should be considered a significant
differential diagnosis in patients with abdominal pain and cholecystitis
symptoms.
A case report of multiple abscesses caused by Streptococcus intermedius
Authors: Reyes Jonathan , Dondapati Manasa , Ahmad Saad , Song David , Jaiswal Vikash , Pokhrel Nishan , Lieber Joseph
Published: April 2022

In this case, we present a 47-year-old male who was found to have S.
intermedius abscesses in his lungs, liver, and brain. The treatment of
choice for these abscesses is a combination of drainage, surgery, and
antibiotic therapy
Mutually coupled circuits based on modified voltage differencing transconductance amplifier with tuneable characteristics
Authors: Petrovic Predrag
Published: April 2022

The letter presents a new mutually coupled circuit (MCC) based on a
modified voltage differencing transconductance amplifier (MVDTA),
designed using the Gorski-Popiel technique [1]. The proposed
synthetic transformer (ST) circuit uses two MVDTAs as active elements,
and all passive elements are grounded — two capacitors and two
resistors. Thanks to the newly established coupling method-connections,
it is provided with independent electronic control of primary and
secondary self-inductance, as well as mutual inductance, via bias
voltages of MVDTAs. In addition, it is very easy to provide the
conditions by which symmetrical couplings are achieved. Thorough Pspice
simulation time and frequency domain analyses have been performed in
order to verify the theoretical analyses. A double-tuned band-pass
(DTBP) filter application is given to show the functionality of the
proposed MCC.
Dynamics of Talent Management in Enhancing Employees’ Performance in the Gambian Banking Sector
Authors:   American International University West Africa, The Gambia, Joof Sarah Elizabeth , Olanipekun Wahid Damilola PhD
Published: April 2022

Human resource is the most important asset that organizations require in the 21st century and employees who constitute the human resource must be satisfied to drive organization performance and success on a sustainable basis. Talent management refers to the process of integrating new worker, developing, and retaining the current workers and attracting highly skilled personnel to work for your company. This study examined the effect of talent management on employee performance. The study examines the impact of talent management process such as talent attraction, retention, and development on employee performance. The study adopted a survey research design. The study population comprises of staffs of Vista Bank (Former First International Bank) Plc within Kanifing Municipal Council (KMC) Metropolis in The Gambia. Primary data was collected through a structured questionnaire. Out of 30 copies administered to the respondents, 27 copies were completed and returned. Data were analyzed and hypotheses were tested at 5% level of significance. Findings revealed that talent attraction significantly influences employee performance. Also, talent retention significant impacts on employee performance. Talent development significantly influences employee performance. Based on the findings of this study, the study concludes that talent management significantly impacts employee performance. The study recommends that talent management programs and strategies must also be enshrined into the organizations philosophy to improve employee satisfaction and performance. Keywords: Talent Management, Strategies, Employee, Performance, Bank, Gambia
The Use of Cloud HD Video Meeting (Zoom) in Addressing Covid-19 Pandemic in Some Selected Universities in Rivers State, Nigeria
Authors:   Department of Office Technology & Management Lagos State University of Science & Technology Ikorodu, Lagos State, Nigeria, Agwatu Chioma O. , Alao Abimbola I , Awomuse Omotayo F , Ogundele Sakiru A.
Published: April 2022

At a time in the world of Education, there was a strange virus that tried to infect everybody that came into contact with it and that is the COVID-19 which for now has gained wide acceptance across the globe by Lecturers. In response to the emerging and ever solution to the COVID-19 outbreak, this study proposes a theoretical framework based on literature and model to determined Cloud HD Video Meeting (Zoom) success. Two research questions were answered and one hypothesis was tested at 0.05 level of significance. The population of the study consisted of 184 students and 20 lecturers in two Universities in Rivers State. The entire population was used as sample. A five point scale questionnaire was used to provide answers for each questionnaire item. While t-test, was used in testing the hypothesis. The major findings was that teaching and learning was only done on face to face method but because of COVID-19 outbreak it was compulsory for teach/learn to be done through e-technologies. It was concluded that Cloud HD Video Meeting (Zoom)services adaptability should be taking seriously by all concerned in other to help to curb the spread of COVID-19 in our schools. It was recommended that students must start to unfailingly use Cloud HD Video Meeting (Zoom) and other E-learning tools in other to help in curbing COVID-19 spread in our Universities. Keywords: Zoom, Learning /Teaching, E-learning, System, Information quality, University
Impact Of Health Education On Environmental Challenges and Issues Of Covid-19 Pandemic In Nigeria
Authors:   Okanlawon-Peters P.O. Department of Health Promotion and Education, Ogun State College of Health Technology Ilese-Ijebu  P.M.B, 2018, Ijebu-Ode Nigeria, Okanlawon O.O.
Published: April 2022

The outbreak of COVID-19 has caused concerns globally. On 30th January, 2020 WHO has declared it as a global health emergency as it affects virtually all spheres of life. The easy spread of this virus made people to wear a mask as precautionary route, use gloves and hand sanitizer on a daily basis that resulted in generation of a massive amount of medical wastes in the environment. Millions of people have been put on lockdown in order to reduce the transmission of the virus. This epidemic has also changed the people's life style; caused extensive job losses and threatened the sustenance of millions of people, as businesses have shut down to control the spread of virus. All over the world, flights have been cancelled and transport systems have been closed. Overall, the economic activities have been stopped and stock markets dropped along with the falling carbon emission. Conclusively, Health promotion can make an essential contribution to fighting a global pandemic such as COVID-19. In modern societies, new public health approaches are needed that are adapted to local situations and needs. Since the vaccine is adequate, the infection has been circulating rapidly within the population. Hence, the only measure that could be adapt at the moment is to prevent its further spread within the communities. Some of the preventive measures such as social distancing, frequent hand washing, wearing face masks and avoiding direct contact with sick people or suspected Covid-19 cases could reduce the risk of COVID-19 infection. Keywords: Covid-19, impact, Frontline, health education, promotion, environmental challenges
A Review of Encryption Methods for Secure Data Communication
Authors:   Department of Computer Technology Lagos State University of Science & Technology Ikorodu, Lagos State, Nigeria, Sarumi Jerry A.
Published: April 2022

We are living in the new era of information, and information is an important aspect of our living. So, the need of security is to ensure that our information remains confidential and only authorized users can access it, and ensuring that no unauthorized user has changed our information, so that it provides full accuracy and efficiency. To be secured, information needs to be hidden from unauthorized access i.e. confidentiality and protected from unauthorized change and also available to an authorized entity when it is needed. Cryptography is a technique that can be employed to ensure the security of transmitted information. This papers reviews existing tecgniques for cryptography and identified salient attributes of each method. Keywords: Cryptography; Symmetric key; ciphered text; Public Key; Private Key; Encryption; Decryption, Security, Transmission, Cyber Security.
Anti-Gaussian quadrature rule for trigonometric polynomials
Authors: Petrovic Nevena , Stanic Marija , Tomovic-Mladenovic Tatjana
Published: April 2022

In this paper, anti-Gaussian quadrature rules for trigonometric polynomials
are introduced. Special attention is paid to an even weight function on
[-?, ?). The main properties of such quadrature rules are proved and a
numerical method for their construction is presented. That method is based
on relations between nodes and weights of the quadrature rule for
trigonometric polynomials and the quadrature rule for algebraic polynomials.
Some numerical examples are included. Also, we compare our method with other
available methods.
Products and inverses of multidiagonal matrices with equally spaced diagonals
Authors: Losonczi László
Published: April 2022

Let n; k be fixed natural numbers with 1 ? k ? n and let An+1,k,2k,...,sk
denote an (n+1)x(n+1) complex multidiagonal matrix having s = [n/k]
sub- and superdiagonals at distances k, 2k,...,sk from the main
diagonal. We prove that the set MDn,k of all such multidiagonal matrices is
closed under multiplication and powers with positive exponents. Moreover the
subset of MDn,k consisting of all nonsingular matrices is closed under taking
inverses and powers with negative exponents. In particular we obtain that
the inverse of a nonsingular matrix An+1,k (called k-tridigonal) is inMDn;k,
moreover if n+1 ? 2k then A-1 n+1,k is also k-tridigonal. Using this fact
we give an explicit formula for this inverse.
On integral generalization of Lupaş-Jain Operators
Authors: Patel Prashantkumar , Bodur Murat
Published: April 2022

This paper mainly is a natural continuation of ?On Lupa?-Jain Operators?
constructed by Ba?canbaz-Tunca et al. (Stud. Univ. Babe?-Bolyai Math.
63(4) (2018), 525-537) to approximate integrable functions on [0;1). We
first present the weighted uniform approximation and provide a quantitative
estimate for integral generalization of Lupa?-Jain operators. We also
scrutinize the order of approximation in regards to local approximation
results in sense of a classical approach, Peetre?s K-functional and
Lipschitz class. Then, we prove that given operators can be approximated in
terms of the Steklov means (Steklov averages). Lastly, a Voronovskaya-type
asymptotic theorem is given.
Some essential spectra of unbounded operator matrices pencils with non-diagonal domain and application
Authors: Moalla Nedra , Selmi Wafa
Published: April 2022

In this paper, we investigate the stability of some essential spectra of a 2x2 block operator matrices pencil with unbounded entries and with
non-diagonal domain (i.e a domain consisting of vectors which satisfy
certain relations between their components) by using the resolvent of this
kind of matrix operator in terms of the union of the essential spectra of
the restriction of its diagonal operators entries. Furthermore, an example
of two-group transport operators pencils is presented to illustrate the
validity of the main results.
Perfect fluid spacetimes and gradient solitons
Authors: De Uday , Mantica Carlo , Suh Young
Published: April 2022

The main object of this paper is to characterize the perfect fluid spacetimes
if its metrics are Ricci solitons, gradient Ricci solitons, gradient
A-Einstein solitons and gradient Schouten solitons.
Some characterizations of strongly partial isometry elements in rings with involutions
Authors: Zhao Shiyin , Wei Junchao
Published: April 2022

In this paper, we study an element which is both group invertible and Moore
Penrose invertible to be EP, partial isometry and strongly EP by discussing
the existence of solutions in a definite set of some given constructive
equations. Mainly, let a ? R# ? R+. Then we firstly show that an element a ?
REP if and only if and Equation : axa+ + a+ax = 2x has at least one solution
in ?a = {a, a#, a+, a+, (a#)+, (a+)+}. Next, a ? RSEP if and only if
Equation: axa+ + a+ax = 2x has at least one solution in ?a. Finally, a ? RPI
if and only if Equation: aya+x = xy has at least one solution in ?2a , where
?a = {a, a#, a+, (a#)+, (a+)+}.
Fixed points of mappings on extended cone b-metric space over real Banach algebra
Authors: Ullah Wahid , Samreen Maria , Kamran Tayyab
Published: April 2022

In this article, we introduce a new geometrical structure which is the hybrid
of cone metric space over Banach algebra and extended b-metric space. We
prove analogues of Banach, Kannan and Reich type fixed point theorems in our
introduced space. We also furnish with various concrete examples to
establish the validity of our results. The obtained results generalize many
well-known results in literature, especially the main results due to
Vujakovic et al., Hussain et al., Huang, Radenovic, Xu become special cases
of our results.
Some results in Cauchy-Stieltjes kernel families
Authors: Fakhfakh Raouf
Published: April 2022

In this paper we present two different results in the theory of
Cauchy-Stieltjes Kernel (CSK) families. We firstly provide the construction
of free Sheffer systems with the theory of CSK families. We associate a free
additive convolution semigroup of probability measures to any free Sheffer
systems and we prove that this is the only one that leads to an orthogonal
free Sheffer systems. We also show that the orthogonality of free Sheffer
systems occurs if and only if the associated free additive convolution
semigroup of probability measures generates CSK families with quadratic
variance function. Secondly, we are interested in the study of boolean
additive convolution. Based on the criteria of convergence for a sequence of
variance functions we give an approximation of elements of the CSK family
generated by the boolean Gaussian distribution and an approximation of
elements of the CSK family generated by the boolean Poisson distribution.
The common solution of twelve matrix equations over the quaternions
Authors: Yuan Wei-Jie , Wang Qing-Wen
Published: April 2022

In this paper, we investigate a system of twelve quaternion matrix equations.
Using the real representation of a quaternion matrix, we first derive the
least-squares solution with the least norm to the system. Meanwhile, we
establish the solvability conditions and an expression of the general
solution to the system when it is consistent.
Conditions under which convergence of a sequence or its certain subsequences follows from deferred Cesàro summability
Authors: Sezer Sefa , Çanak İbrahim , Dutta Hemen
Published: April 2022

Let (un:n=1,2,...) be a sequence of real or complex numbers. We aim in this paper to determine necessary and/or sufficient conditions under which convergence of a sequence (un) or its certain subsequences follows from summability by deferred Ces?ro means. We also investigate the limiting behavior of deferred moving averages of (un). The conditions in our theorems are one-sided if (un) is a sequence of real numbers, and two-sided if (un) is a sequence of complex numbers. The theory developed in this paper should be useful for developing more interesting and useful results in connection with other sophisticated summability means as well as to extend to other spaces like ordered linear spaces.
Binary Adsorption of Phenol and 2-Chlorophenol on Chitosan Derived from Pink Shrimp Shell
Authors: Olafadehan Olaosebikan Abidoye
Published: April 2022

The binary adsorption of phenol and 2-chlorophenol in a synthetic industrial wastewater was investigated using extracted optimized chitosan from pink shrimp shell wastes as adsorbent. The effects of operational parameters on the binary adsorption system were studied. The equilibrium adsorption data for the binary system were analyzed using extended Langmuir, extended Sips, extended Redlich-Peterson and Fritz-Schlüender adsorption isotherms. The Fritz-Schlüender isotherm fitted the adsorption data excellently wherein the maximum adsorption capacities for phenol and 2-chlorophenol were obtained as 6.7431 and 14.7493 mg/g respectively for the optimized chitosan at pH=4, adsorbent dose of 1 g, initial concentration of phenol and 2-chlorophenol = 25-250 mg/L, contact time of 120 min, agitation speed of 150 rpm, particle size of 250 microns and temperature of (28 ± 2)°C. The kinetic modelling of the phenol-2-chlorophenol adsorption system showed that pseudo second-order kinetic model gave the best fit amongst the investigated kinetic models. The simultaneous adsorption of phenol and 2-chlorophenol on the prepared adsorbent was chemisorption and film-diffusion controlled. The thermodynamic parameters of the binary adsorption system indicated that the simultaneous adsorption of phenol and 2-chlorophenol on the extracted optimized chitosan was relatively favourable, non-spontaneous, endogenic and exothermic with changes in Gibb’s free energy, G ∆ , positive, entropy, S ∆ , approximately zero (though negative), and enthalpy, H∆, negative.
The Crisis of Country Studies in Russia amid the Growing Demand for Knowledge about Foreign Countries and Regions
Authors: Kuznetsov A. V.
Published: April 2022

The article concentrates on foreign country studies. Although rooted in geography, this approach is to be treated as an interdisciplinary social science research that allows a comprehensive study of modern societies. In Russia, the contribution of economists, political scientists and historians, especially orientalists, to the study of foreign countries is very significant. At the same time, over the past 100 years, regional studies in the Soviet Union / Russia have been greatly transformed. Solely due to subjective reasons and the general crisis of fundamental research in the country, multi-volume publications that provided a lot of material for comparative studies have become a thing of the past. The theoretical baggage of foreign country studies accumulated in the second half of the XX century is almost not used, while linguistic training has been curtailed in a number of areas. In modern Russia, the “output” of scientific regional products does not meet the existing "demand". There are several explanations: the narrow scale of geographic research, the fascination with global issues by political scientists and economists, as well as the general shortage of specialists in the countries of the post-Soviet space and some other macro-regions. However, the state and big business, which should form a solvent and long term demand, also fail to cope with their social role. As a result, the discipline of country studies has found itself in a deep crisis. A way of this problem should be sought as soon as possible, while the traditions of domestic country studies and oriental studies are still alive. Otherwise Russia will have only recreational regional studies (the publication of guidebooks) and linguistic and regional research of the main nation states (as part of the new-fangled discipline of philologists and political scientists). At the same time, the lack of practical orientation of country studies has a detrimental effect on Russia's positioning in world economy and international relations.
Country Studies of Central and Eastern Europe: How to Get Out of the Dive?
Authors: Lobanov M. M. , Kulikova N. V.
Published: April 2022

The current stage of development of studies of Central and Eastern Europe is characterized by a number of specific and common problems for the whole scientific direction. Systemic transformation in the states of the region at the turn of the 1980s-1990s led to a decrease in the level of their foreign economic and foreign policy relations with Russia, which influenced the interest in the study and accumulation of knowledge about Central and Eastern Europe in our country. In particular, the demand of state bodies for regular country studies of the region decreased, which affected the publication activity of scientific centers and the training of new scientists by specialized university departments. Central-Eastern Europe ceased to be considered as a separate region as its thirteen states were involved in European integration processes, and the number of scientific institutions and research teams for its study decreased. The disunity of specialists dealing with Eastern European problems and the low level of their scientific interaction leads to the formation of an "archipelago" of research centers. On the basis of open data, we found nine, oft en small, scientific teams for the study of history (from the middle of the 20th century), economy, society, domestic and foreign policy of the countries of Central and Eastern Europe and analyze the results of their activities in 2010-21 (including topics and territorial scope of works). It is worth to note that in the Russian regions, the corresponding research within the framework of research teams is not carried out, they have survived only in Moscow. Such a key characteristic of country studies as complexity is gone – in the conditions of methodological stagnation and in the absence of the possibility of conducting comprehensive country studies, scientists tackle its components separately, and some of them have been abandoned. The predominance of the reductionist approach over the holistic one also applies to geographical coverage: our analysis of the specialization of scientists shows that many countries in the region remain outside the research field, and interest in two or three of them is due to cultural and historical ties and foreign policy agenda. The training of researchers and teachers at the departments of universities is carried out in an insufficient level for personnel renewal, the age of twothirds of the specialists is over 40 years old. In order to assess the prospects for solving this problem, we analyzed the topics of dissertations defended over ten years in 24 Russian universities and academic institutes in history, politics, economics and economic geography of the countries of Central and Eastern Europe.
Russian Arabic Studies
Authors: Vasiliev A. M. , Zelenev E. I. , Isaev V. A. , Kirabayev N. S. , Kudelin A. B.
Published: April 2022

The article provides an overview of the areas of Russian Arabic Studies except linguistics. Since Eastern regional studies are inconceivable without knowledge of the language and culture of the regions under study, the analysis of studies in the modern Arab world is preceded by a review of key works that explained the specifics of the literature and philosophy of the Arab world. Thus, the first section examines key figures in the study of classical and modern literature of the Arab countries, the medieval history of this region. The second section is devoted to the philosophy

of the Arab East. The largest third section is focused on the study of economic, social, and political processes in Arab countries in the XX century. It is indicated that Russian scientists, despite the forced domination of Marxist-Leninist dogmas in the social sciences, managed to create numerous scientific works that are among the distinguished Arabic Studies worldwide. The final section contains an analysis of contemporary studies of the Arab world in Russia. The article highlights key achievements of the scientific schools of Russian Arabic Studies providing information on more than two hundred monographs.
African Studies in Russia: History and the Current State
Authors: Abramova I. O. , Amvrosova M. N. , Bondarenko D. M. , Volkov S. N. , Gribanova V. V. , Deych T. L. , Morozenskaya E. V.
Published: April 2022

The article provides a detailed analysis of the development in Russia of African studies throughout the entire period of its existence - from the first fragmentary knowledge about the African continent, brought to Russian soil by individual travelers and enthusiasts to modern comprehensive research in Africa by the largest Russian scientific centers, among which, of course, the leading positions are held by the Institute for African Studies of the Russian Academy of Sciences. The work exposes the evolution of the development of African studies as a science through the pre-revolutionary, Soviet and post-Soviet periods. A powerful impetus for the study of Africa was given in the late 1950s. This was due to the victory of national liberation movements in African countries and the formation of independent states on the continent. The author shows the increased interest in African studies at the present stage of development of our country, when the African vector of Russian foreign policy is becoming more and more in demand. Despite the limited human, organizational and financial resources, Russian African studies are currently on the rise. The international recognition of the achievements of Russian African studies imposes an additional obligations on Russian scientists. Taking into account the practical significance of their works, the conclusions and proposals they contain for the development of Russian-African relations, they feel even greater responsibility. The latest vivid example of this was the active participation of Russian African scientists in the preparation and successful holding of the first Russia-Africa Summit and Economic Forum in Sochi on October 23-24, 2019.