bluuebunny/crossref_metadata_2025 huggingface dataset:
Reconfigurable intelligent surface-enabled integrated sensing and communication: a sensing-assisted communication framework
Authors: Yang Ziang , Zhang Haobo , Zhang Hongliang , Song Lingyang
Published: May 2023

Integrated sensing and communication (ISAC) is an essential technology in the upcoming 6G network, and its performance can be effectively enhanced by the reconfigurable intelligent surface (RIS). Among the various RIS-enabled ISAC techniques, RIS-enabled sensing-assisted communication has attracted growing attention because it can effectively improve communication performance by focusing the energy on the sensed locations of the users and is easy to be integrated into existing communication systems. However, existing RIS-enabled sensing-assisted communication systems rely on antenna arrays for the acquisition of angular information to localize the users, making the system more complex and expensive. To handle this problem, in this paper, we propose an RIS-enabled multi-user sensing-assisted communication framework where a single antenna access point (AP) first senses the locations of the single-antenna users with the help of the RIS, and then the energy of the communication signal is focused on the sensed locations of the users to provide them with a higher sum-rate by adjusting the phase shifts of the RIS. However, the selection of the RIS phase shifts heavily influences the resource block and power allocation at the AP, which makes the joint design of the RIS phase shifts and the resource allocation very challenging. In order to address this challenge, we formulate an RIS-enabled multi-user communication optimization problem and design a two-stage optimization algorithm based on the genetic and Lagrangian duality methods to jointly optimize the RIS phase shifts and the resource allocation. Simulation and experimental results show that compared with the scheme without RIS, the proposed RIS-enabled multi-user communication system can achieve a higher sum-rate and lower localization error.
The effects of ambient temperature exposure on feline fecal metabolome
Authors: Chiu Olivia , Tal Moran , Sanmugam Abbinash , Hesta Myriam , Gomez Diego E. , Weese Jeffrey Scott , Verbrugghe Adronie
Published: May 2023

Introduction

The fecal metabolome provides insight into overall gastrointestinal and microbial health. Methods for fecal sample storage in metabolomics research vary, however, making comparisons within current literature difficult. This study investigated the effect of ambient temperature exposure on microbial-derived metabolites of feline fecal samples.

Methods

Fecal samples were collected from 11 healthy cats from a local boarding facility. Samples were manually homogenized and aliquoted. The first aliquot was frozen at -80°C within 1 hour of defecation, and remaining samples were exposed to ambient temperature for 2, 4, 6, 8, 12, and 24 h prior to freezing at -80°C. Fecal metabolites were quantified using 1H NMR spectroscopy. Fifty metabolites were grouped into six categories (27 amino acids, 8 fatty acids, 5 sugars, 3 alcohols, 2 nitrogenous bases, 5 miscellaneous).

Results

Concentrations of 20 out of 50 metabolites significantly differed due to ambient temperature exposure (7 amino acids, 6 fatty acids, 2 alcohols, 1 nitrogenous base, 4 miscellaneous). The earliest detected changes occurred 6 h post-defecation for cadaverine and fumaric acid.

Discussion

This study shows ambient temperature exposure alters the composition of the feline fecal metabolome, but short-term (up to 4 h) exposure prior to storage in the freezer seems to be acceptable.
A DFT Study on the Kinetics of HOO•, CH3OO•, and O2•− Scavenging by Quercetin and Flavonoid Catecholic Metabolites
Authors: Amić Ana , Mastiľák Cagardová Denisa
Published: May 2023

Reaction kinetics have been theoretically examined to ascertain the potency of quercetin (Q) and flavonoid catecholic metabolites 1–5 in the inactivation of HOO•, CH3OO•, and O2•− under physiological conditions. In lipidic media, the koverallTST/Eck rate constants for the proton-coupled electron transfer (PCET) mechanism indicate the catecholic moiety of Q and 1–5 as the most important in HOO• and CH3OO• scavenging. 5-(3,4-Dihydroxyphenyl)-γ-valerolactone (1) and alphitonin (5) are the most potent scavengers of HOO• and CH3OO•, respectively. The koverallMf rate constants, representing actual behavior in aqueous media, reveal Q as more potent in the inactivation of HOO• and CH3OO• via single electron transfer (SET). SET from 3-O− phenoxide anion of Q, a structural motif absent in 1–5, represents the most contributing reaction path to overall activity. All studied polyphenolics have a potency of O2•− inactivation via a concerted two-proton–coupled electron transfer (2PCET) mechanism. The obtained results indicate that metabolites with notable radical scavenging potency, and more bioavailability than ingested flavonoids, may contribute to human health-promoting effects ascribed to parent molecules.
Design Method and Impact Response of Energy-Consuming High-Fall Flexible Protection System for Construction
Authors: Liao Linxu , Yu Zhixiang , Liu Dong , Luo Liru , Guo Liping , Tian Xinquan
Published: May 2023

High-fall accidents refer to accidents where construction personnel, building materials, and equipment fall from a height, usually resulting in serious casualties and significant economic losses. This paper proposes a high-fall flexible protection system and its design approach with a tensile yield energy-consuming mechanism to solve high-fall accidents. The design approach based on component characteristics that obtained through tests contains energy matching, component internal force balance, and a two-level energy consumption mechanism. Component tests were conducted with mesh bursting tests and energy dissipator static tensile tests to obtain the characteristics of the intercepting net under the flexible boundary condition, and the force-displacement model of the ring-type energy dissipater. Combined with an actual project, we designed a high-fall flexible protection system with a protection energy level of 800 kJ for the core tube of an ultra-high-rise building construction using this method. The impact of dynamic response under multiple cases including the overall fall of the construction formwork was analyzed by dynamical numerical calculation models. The result shows that the system can effectively intercept high-falling objects and exhibit good two-stage energy dissipation characteristics to consume the impact energy. Compared with the protection system without an energy consumption mechanism, the internal force response of the steel wire rope and the suspended frame reduce by about 60%, and the energy consumption capacity increase more than six times. The protection technique proposed in this paper can effectively solve the problem of high-level impact protection such as falling construction formwork equipment, and improve construction safety.
Identifying Activities from an Intervention to Promote Sleep in Hospitalised Patients Using the Focus Mapping Technique
Authors: Armayones Ruiz Manuel , Robles Noemí , Graupera Diez Iolanda , Camps Salat Raimon , Escarrabill Sanglas Joan , Salas Marco Elena
Published: May 2023

Background: Sleep is an essential element for patients’ recovery during a period of hospitalisation. Hospital Clínic de Barcelona has developed the ClíNit project to promote patients’ sleep by identifying elements that affect the quality of sleep and implementing actions to improve rest at night. Objective: Our aim is to select actions to improve sleep quality. Methods: The study population included night-shift nurses from two clinical units where the pilot actions were to be carried out (n: 14). The nurses prioritised actions to improve sleep quality using the methodology proposed by Fogg: clarification, magic wand, crispification, and the focus-mapping technique. Results: Two sessions were organised for each unit and 32 actions considered high impact and easy to implement were proposed, of which 43.75% (14/32) were directly dependent on nurses. It was then agreed to implement four of these pilot studies. Conclusions: One aspect worth highlighting is that using prioritization techniques such as the Fogg technique is a good strategy to implement the general objectives of intervention programmes in large organizations in an easy way.
Application of Band-Selective HSQC NMR in Species Discrimination and Adulteration Identification of Panax Linn
Authors: Guo Congcong , Dong Jiyang , Deng Lingli , Cheng Kiankai , Xu Yue , Zhu Haowen , Deng Anjun , Zhou Xia , Qin Hailin , Wang Yinghong
Published: May 2023

The quality of Panax Linn products available in the market is threatened by adulteration with different Panax species, such as Panax quinquefolium (PQ), Panax ginseng (PG), and Panax notoginseng (PN). In this paper, we established a 2D band-selective heteronuclear single quantum coherence (bs-HSQC) NMR method to discriminate species and detect adulteration of Panax Linn. The method involves selective excitation of the anomeric carbon resonance region of saponins and non-uniform sampling (NUS) to obtain high-resolution spectra in less than 10 min. The combined strategy overcomes the signal overlap limitation in 1H NMR and the long acquisition time in traditional HSQC. The present results showed that twelve well-separated resonance peaks can be assigned in the bs-HSQC spectra, which are of high resolution, good repeatability, and precision. Notably, the identification accuracy of species was found to be 100% for all tests conducted in the present study. Furthermore, in combination with multivariate statistical methods, the proposed method can effectively determine the composition proportion of adulterants (from 10% to 90%). Based on the PLS-DA models, the identification accuracy was greater than 80% when composition proportion of adulterants was 10%. Thus, the proposed method may provide a fast, practical, and effective analysis technique for food quality control or authenticity identification.
Achieving Boron–Carbon–Nitrogen Heterostructures by Collision Fusion of Carbon Nanotubes and Boron Nitride Nanotubes
Authors: Zhang Chao , Xu Jiangwei , Song Huaizhi , Ren Kai , Yu Zhi Gen , Zhang Yong-Wei
Published: May 2023

Heterostructures may exhibit completely new physical properties that may be otherwise absent in their individual component materials. However, how to precisely grow or assemble desired complex heterostructures is still a significant challenge. In this work, the collision dynamics of a carbon nanotube and a boron nitride nanotube under different collision modes were investigated using the self-consistent-charge density-functional tight-binding molecular dynamics method. The energetic stability and electronic structures of the heterostructure after collision were calculated using the first-principles calculations. Five main collision outcomes are observed, that is, two nanotubes can (1) bounce back, (2) connect, (3) fuse into a defect-free BCN heteronanotube with a larger diameter, (4) form a heteronanoribbon of graphene and hexagonal boron nitride and (5) create serious damage after collision. It was found that both the BCN single-wall nanotube and the heteronanoribbon created by collision are the direct band-gap semiconductors with the band gaps of 0.808 eV and 0.544 eV, respectively. These results indicate that collision fusion is a viable method to create various complex heterostructures with new physical properties.
Performance and Mechanism of Chlorine Dioxide on BTEX Removal in Liquid and Indoor Air
Authors: Wang Anlong , Qiao Yina , Zhang Yufan , Jin Riya , Liu Jiaoqin , He Zengdi , Jia Mengye , Gao Jingshuai , Guo Chengjie
Published: May 2023

With the development of the chemical industry, benzene, toluene, ethylbenzene, and xylene (BTEX) have gradually become the major indoor air pollutants. Various gas treatment techniques are widely used to prevent the physical and mental health hazards of BTEX in semi-enclosed spaces. Chlorine dioxide (ClO2) is an alternative to chlorine as a secondary disinfectant with a strong oxidation ability, a wide range of action, and no carcinogenic effects. In addition, ClO2 has a unique permeability which allows it to eliminate volatile contaminants from the source. However, little attention has been paid to the removal of BTEX by ClO2, due to the difficulty of removing BTEX in semi-enclosed areas and the lack of testing methods for the reaction intermediates. Therefore, this study explored the performance of ClO2 advanced oxidation technology on both liquid and gaseous benzene, toluene, o-xylene, and m-xylene. The results showed that ClO2 was efficient in the removal of BTEX. The byproducts were detected by gas chromatography-mass spectrometry (GC-MS) and the reaction mechanism was speculated using the ab initio molecular orbital calculations method. The results demonstrated that ClO2 could remove the BTEX from the water and the air without causing secondary pollution.
THE INFLUENCE OF MODERN EDUCATIONAL GAMES ON PRESCHOOL CHILDREN’S GAME COMPETENCE FORMATION
Authors: KOVALEVSKA N. , PASICHNICHENKO A.
Published: May 2023

The article reveals the peculiarities of preschool children’s game competence formation. Educational games have been identified as one of the effective ways to increase the level of game competence formation. Educational games meet preschoolers’ natural needs and combine elements of learning, applied, reproductive and creative activities, which makes it possible to develop the child’s emotional sphere, cognitive interests, intellectual and spiritual needs, and creativity.Educational games are defined as a set of games of various types by the authors. They have the following common characteristics: they contain a task that needs to be solved, necessarily accompanied by written, oral, pictorial, and drawing instructions; compliance by teachers or parents with the principles of accessibility, systematicity, and consistency; taking into account the child's individual and maximum capabilities; providing a free, creative atmosphere; lack of hints in solving tasks, to form responsibility and independence; providing educational space and time for creative problem solving; encouragement to complete a difficult task and enjoy the result, which has a real material display.A pedagogical experiment was conducted to determine the impact of educational games on the level of preschool children's game competence development. Thirty children of older preschool age participated in the experiment, divided into experimental and control groups. At the ascertainment stage of the experimental study, to determine the level of preschool children’s game competence, indicators and criteria for preschool children’s game competence were determined. When determining the criteria and indicators, we focused on the Basic component of preschool education, namely the educational direction “Child’s Game”. We defined motivational, activity, and cognitive criteria and their indicators. Based on selected criteria and indicators, we substantiated the levels of older preschool children’s game competence formation: high, medium, and low. At the formative stage, a system of educational games was implemented in the experimental group. The control experiment data showed that the use of educational games in working with preschool children contributes to the positive dynamics of the growth of the level of the formation of game competence, and has a positive effect on the preschool children’s comprehensive development.
TRAINING OF FUTURE EDUCATORS TO THE FORMATION OF SPIRITUAL AND MORAL VALUES IN PRESCHOOL CHILDREN IN THE CONDITIONS OF WAR
Authors: MANZHELIY N. , FAZAN T.
Published: May 2023

The article reveals the problem of training future educators to work with children who suffered as a result of hostilities on the territory of Ukraine. The opinion of well-known scientists has been confirmed that a modern specialist in preschool education must first of all be spiritually and morally formed himself, aware of the deep meaning of the concepts: love, mercy, kindness, sensitivity, obedience, politeness, mutual help, gratitude, respect, because children, and especially those who suffered from the war and who need pedagogical support, take their spiritual strength and nourishment precisely from their mentors. The importance of quality training of the future educator to work with such children is emphasized.
In accordance with the "Code of Values of Modern Ukrainian Education and Development" by O. Vyshnevskyi, the implementation of the training of modern preschool education specialists for the formation and restoration of spiritual and moral values in children affected by military actions is presented. It was concluded that only in a complex combination of study of educational disciplines is the accumulation of theoretical knowledge and organization skills and carrying out various forms of practical activities with children for the formation and restoration of their spiritual and moral values.
TRAINING FUTURE TEACHERS OF TECHNOLOGY IN THE ARTISTIC FIELD OF CONDUCTING A MASTER CLASS ON MAKING A KNOT DOLL
Authors: SVYRYDIUK N.
Published: May 2023

Main topic to consider are the issues of artistic features, traditions of making knotted dolls, the potential of national-patriotic and aesthetic education among student youth by means of folk art. Emphasizing on the importance of mastering the technique of making a folk doll among future technology teachers which can be widely used later in their practical pedagogical activities both in technology classes and in extracurricular educational activities with students of primary and basic new Ukrainian schools, in particular during master classes. The main topic of discussion is the need to acquire knowledge about ethnographic research on the creation of a folk doll from various materials and regional features of shaping and decorating toy in order to conduct a high-quality and effective master class on a knotted doll, to achieve the educational, developmental goal and practical significance of such a format in technology classes.The study highlights the structure of the organization and preparation for the master class on knotted dolls in general secondary education institutions. At the preparation stage, it is necessary to select and thematically decorate the room for the master class, think over the structure of the author’s mini-lecture, prepare a multimedia presentation, select illustrative and visual material, organize an exhibition of the author’s creative works of the master class, select and prepare the necessary materials for making a doll by the participants of this master class. It is important to think over the features of the final stage of the master class (posting and reflection). The work describes in detail the technological stages of making a doll: forming the head - a knot, laying out a cross from threads, forming an anthropomorphic figure, decorating the "dressing" of the doll. The research substantiates the importance of studying the traditions of folk art in institutions of higher education by conducting master classes on knotted dolls. The artistic features of the knotted doll and conducting master classes are analyzed. The importance of the introduction of innovative technologies during master classes on knotted dolls in institutions of higher education is emphasized.
FEATURES OF THE FOREIGN EXPERIENCE OF THE ORGANIZATION OF INCLUSIVE SPORTS FOR PEOPLE WITH DISABILITIES
Authors: DEMUS Ya.
Published: May 2023

Nowadays, in Ukraine and in most foreign countries, the equality of people is more widely recognized. It is determined regardless of the state of health or the presence of developmental characteristics, but also due to their right to self-determination, integration into society, including through physical education and sports. But there was not always equality in society for people with health problems. The analysis of foreign literature makes it possible to follow the evolutionary relationship between society and people with special educational needs. Research in this direction allows us to distinguish several stages of the formation of inclusive physical culture for persons with disabilities.
Gender Bias in the Hospitality Sector: Female and Male Jobs
Authors: Silva Susana , Couto Maria João
Published: May 2023

The hospitality sector is still very traditional and male-dominated in terms of values, it is segregating and discriminatory according to gender, not only horizontally but also vertically, the wage differences between men and women are critical, and many of the jobs are stigmatized. Indeed, despite women representing most of the workforce in hospitality, such numerical dominance is not reflected in the leadership positions they occupy. Traditionally, men and women occupy different roles in the hospitality industry: women are more often assigned functions that are in line with their social roles and that represents an extension of their domestic tasks so that it is easier to find women in-room service or cleaning. Men, on the other hand, are more easily assigned physically demanding tasks, administrative and management functions, which require more skills and are therefore better paid.

This study aims to examine the female and male social representation associated with the performance of certain roles in the hospitality sector, as perceived by tourism and hospitality students, to explore gender representations associated with different hierarchical positions and departments, and to understand some of the (in)equalities that continue to persist between men and women in hospitality.

A quantitative cross-sectional study was performed to achieve the study goals. Our sample consists of 200 higher education students in tourism and hospitality. Based on Bem Sex Role Inventory short-form traits questionnaire, we applied an online questionnaire with the purpose of knowing the students’ gender representations of different professional activities in the hospitality industry.

Within our results, we expect to describe the gender bias of the professional functions in the hospitality sector. On the other hand, we expect to understand possible gender differences between operational and leadership positions, and from different departments.

The findings of this study will help the hotels to analyse their gender practices and policies. By giving voice to the stereotypes that foster gender inequalities in the hospitality sector, hotels can become aware of their gendered practices and policies that impact the recruitment process and the various roles and functions that are assigned to men and women.
Factors of job satisfaction that influence organisational behavior: A correlational analysis in event companies
Authors: Mayuri-Ramos Elizabeth , Melendez-Villanueva Angel Gabriel , Conde-Beltran Yuri Vanessa , Peralta-Ugaz Woendy , Cordova-Buiza Franklin
Published: May 2023

Organising an event is a process that integrates agents from various tourism sectors such as restaurants, hotels, travel agencies and transportation companies; and as in any organisation, it requires an adequate management of its human resources. Organisational behavior defines the way in which people act in the organisation and the impacts it generates; the key to a company's success is to generate a solid organisational culture that allows a positive organisational behavior within the company and that achieves that the collaborators provide greater productivity and profitability to the company. The purpose of this research is to determine the relationship between organisational behaviour and job satisfaction in a company that organises events in Lima, capital of Peru. The research has a correlational, cross-sectional and non-experimental design; the sample consisted of 20 employees, the type of sampling was census and the technique used was the survey. The data was processed and analysed by the SPSS program, using descriptive and inferential statistics. The results show that 55% of the collaborators indicate that there is a good organisational climate in the company, which is reflected in the behaviour of the workers; also, 50% have a high level of job satisfaction in the organisation where they work. A correlation level of 0.976 and sig = 0.00 < 0.05 were obtained as a result, showing the correlation between the variables. It is concluded that organisational behaviour maintains a direct and significant relationship with job satisfaction in the study group.
Wellness tourism in an active life system and promotion of social cohesion: the case of senior university(s)
Authors: Lopes Eunice , Simões Jorge , Duarte Eunice , Rodrigues José
Published: May 2023

Recognition of the potential of wellness and quality of life for tourism was manifested by deepening knowledge of this market in the face of the cultural and tourist dynamics developed, but also through the creation of new tourism products specific to this sector and an active lifestyle system. Senior universities, for example, have been playing an increasingly important role in this dynamic of well-being and active life. It has not only promoted activities aimed at the cultural and tourist practice of an active life of well-being but also contributed to the social cohesion of the territory. In this study, carried out geographically in the Centre of Portugal, the aim is to present a case study related to the practice of well-being and active life through the senior university in its relationship with tourism education and the enhancement of the cultural experience. The main objectives of this study are, therefore, the approach to wellness tourism in an active life system and the promotion of social cohesion and by verifying the importance of guaranteeing a healthy life in tourist places that lead people to experience aspects of a healthy lifestyle committed to growing cultural and tourist knowledge. To achieve both objectives, a quantitative analysis was carried out, and from the preliminary results, it is identified that senior universities should, therefore, be understood as social intervention devices. Innovative didactic approaches to teaching end up accompanying the availability of information that facilitates access to knowledge, not least because the new reality contributed by the aging of the population, associated with the process of globalization and the economic and social situation, poses new challenges to the present-day education of well-being, being and quality of life.  The conclusions point to favoring the quality of life and social inclusion of those who actively participate in the activities provided by the senior university(s), as active life strategies linked to cultural, wellness, and tourism quality of life, reinforcing the role of social cohesion in the territory in which it operates.
The Real Effectiveness of VR: the tourism and cultural organization managers' point of view
Authors: Wirth Julia , Racine Nina
Published: May 2023

Abstract: Virtual reality (VR) has become an important field of academic research investigation, firstly and obviously in relation to its technological aspects. Then, as a marketing tool for promotion and communication purposes. In this context, researchers have mainly focused on analyzing the behavior and appreciation of tourists with respect to this new technology. This article proposes an alternative approach, focusing on the company’s decision-makers, mainly tourism and cultural organizations, who use this technology. This approach seeks to understand how and why VR is integrated into a company's strategy. Methodology: Firstly, we did a literature review and studied a systematic collection of virtual tour offers in Switzerland, which led to the analysis of characteristics of these virtual reality offers. These characteristics consider the different virtual reality systems according to the level of immersion, interactivity, and presence, which made it possible to construct a classification of virtual tour offers in Switzerland. Secondly, a qualitative method was used to conduct twelve semi-structured interviews with companies offering virtual tours of Swiss regions, in order to understand the managerial vision of VR usage and to deepen understanding of the various applications of virtual reality in the context of Swiss tourism. Findings: The analysis revealed that there is a distinction between the different virtual reality systems used in the Swiss tourism sector. Research has shown that non-immersive 360° videos as a marketing tool are no longer of great benefit to tourist destinations. Conversely, immersive virtual tours for promotional purposes at trade fairs and with travel partners are still of interest however are no longer considered a competitive advantage. It is the integration of VR into the in-situ tourism experience which has received a more enthusiastic response but creating fears among tourism stakeholders. Originality/Value: The main argument of this article is that it analyzes the use of VR tools from the point of view of managers of cultural and tourist institutions, and not from the point of view of customers. Furthermore, the article proposes a new structural classification of VR projects in Switzerland and offers practical implications for tourism and cultural organizations, as well as new directions for future studies.
The impact of literary festivals on boosting tourist activity: the case of Escritaria
Authors: Ferreira Ana , Villares Marta
Published: May 2023

The growing awareness towards literary tourism has given it a gradual popularity, strengthening its role in the tourist offer in Portugal.  Aware of this fact, we discuss, in this paper, the main initiatives of literary festivals in the country in the city of Penafiel. Experiences, images, and texts are increasingly important to achieve tourist realities. And it is through literary festivals that they are enhanced. Although event tourism has an increasingly interdisciplinary approach, the analysis of the literary experience is still scarce. The main goal of this article is to understand the experience provided by the literary festival ESCRITARIA which took place in 2022, holding its 15th edition. Therefore, a thorough literature review was done, as well as an exploratory and quantitative investigation. In addition, a data collection was carried out with a questionnaire designed to be answered online by the national and international participants in Escritaria. To understand Escritaria as a literary event proposal, one surveyed a sample of national and foreign participants in the festival; since it took place during the event, it allowed one to gauge the importance of literary events as an enhancing offer of the tourist activity. Starting from the sociodemographic profile of the participants, this study aims to understand the forms of participation, involvement and satisfaction. The results of the analysis highlight the growing importance of this type of events and this one, in particular, a festival that has been building loyalty and expanding its audience, an audience of national and international scope. This festival not only increases the number of tourists/visitors, but also enhances the destination promotion and marketing activities.
On the Issue of Premature Birth in Coronavirus Infection
Authors: Свиридова А.В. , Константинова О.Д.
Published: May 2023

Ведение беременности у пациенток с коронавирусной инфекцией является значительной проблемой для мировой медицины. Доказательств определенного метода и оптимальных сроков родоразрешения для таких пациенток в литературе не представлено, при этом большое внимание уделяется высокому риску преждевременного родоразрешения. В этой связи проведен анализ преждевременных родов, случившихся на фоне коронавирусной инфекции, на базе областного перинатального центра г. Оренбурга. Показатель преждевременных родов среди женщин, родоразрешенных в острый период COVID-19, составил 12,7%. В группу наибольшего риска вошли беременные с тяжелым и крайне тяжелым течением коронавирусной инфекции (с двусторонней пневмонией и дыхательной недостаточностью). В группах сравнения не удалось выявить более предпочтительного метода родоразрешения, что подтверждает индивидуальный подход к родоразрешению в каждом отдельном случае.

Pregnancy management in patients with coronavirus infection is a significant problem for world medicine. There is no evidence of a specific method and optimal delivery dates for such patients in the literature, while much attention is paid to the high risk of premature delivery. In this regard, an analysis of premature births that occurred against the background of coronavirus infection was carried out on the basis of the Regional Perinatal Center in Orenburg. The rate of premature birth among women delivered during the acute period of COVID-19 was 12.7%. The highest risk group included pregnant women with severe and extremely severe coronavirus infection (with bilateral pneumonia and respiratory failure). In the comparison groups, it was not possible to identify a more preferable method of delivery, which confirms an individual approach to delivery in each individual case.
A RELAÇÃO ENTRE O CONSUMO DE ALIMENTOS FERMENTÁVEIS (FODMAPS) E A SÍNDROME DO INTESTINO IRRITÁVEL: UMA REVISÃO DA LITERATURA
Authors: de Souza Vieira Talita , Duarte de Oliveira Sabrina , Nunes Vieira Jallyne , de Araújo Torres Rayanne
Published: May 2023

OBJETIVO: Fornecer uma visão geral da literatura atual sobre a relação entre o consumo de alimentos fermentáveis (FODMAPs) e a síndrome do intestino irritável. MÉTODO: Trata-se de uma revisão bibliográfica, baseada no levantamento de artigos científicos relevantes e conceituados das plataformas SciELO, PudMed, LILACS e Science Direct, a partir do uso dos seguintes Descritores em Ciências da Saúde (DeCs): Síndrome do Intestino Irritável, consumo alimentar, intolerância à lactose e FODMAPs. Para a elaboração da presente pesquisa, foram adotados como critério de inclusão, publicações de acordo com o título, resumo e direcionamento do objetivo proposto. E como critério de exclusão, foram excluídas as publicações que não apresentavam o trabalho completo e por se tratarem de outros assuntos que não se adequavam com o foco deste trabalho. RESULTADOS: A partir da seleção de 11 artigos de impacto e que atenderam aos critérios de exclusão sobre o tema citado nas bases de dados supracitadas, publicados a partir de 2018, observou-se que, é de concordância comum entre os autores que a SII é uma condição crônica que tem afetado uma grande parte da população mundial e tem merecido destaque meta-análises que abordem a relação dessa doença crônica com os aspectos alimentares. CONCLUSÃO: Conclui-se, a partir dos resultados que, a adoção de uma dieta com baixo teor de FODMAPs mostrou-se promissora na redução da dor abdominal, da diarreia ou constipação e do aumento abdominal associados à SII. Esses resultados ressaltam a necessidade de uma abordagem multidisciplinar no tratamento da SII, que inclui tanto o uso de medicamentos quanto a adoção de uma dieta adequada, visando melhorar a qualidade de vida dos indivíduos nessa condição crônica.

Palavras-chave: Síndrome do Intestino Irritável. Consumo Alimentar. Intolerância à Lactose. FODMAPS.
Switchable ferroelectric photovoltaic response in Sc0.2Al0.8N-based optoelectronic devices
Authors: Ma Xiaolong , Zhang Jiahe , Wang Ronghui , Gao Chao , Ma Ye , Lin Binghui , Zou Yang , Liu Yan , Xu Hongxing , Sun Chengliang , Cai Yao
Published: May 2023

Ferroelectric photovoltaic (FePV) materials are naturally considered a new type of solid-state optoelectronic memory conducting with high storage densities and nonvolatile states. This work investigates ferroelectric properties of Sc0.2Al0.8N thin film with a remnant polarization of 225.2 μC cm−2 and researches the switchable FePV effect and photo-diode characteristics of two-terminal Sc0.2Al0.8N devices. When adopting a two-dimensional material MoTe2 to form a heterostructure, both the photo absorption spectrum and the conductivity of ScAlN-based two-terminal device would be promoted, resulting in the photocurrent at the level of μA cm–2. This work suggests ScAlN can provide a promising FePV implementation for constructing high-performance optoelectronics.
لا سوفرانس هومين دانس لا ميزون دو برجر دي فيني Recherche présentée على قدم المساواة:
Authors: AHMED SHAKER GHANI
Published: May 2023

ألفريد دي فيني هو أحد منشئي المدرسة الرومانسية. شاعر وفيلسوف يتميز بأصالة النوع الشعري الذي جلب الشعر الفرنسي. يكمن أسلوبه في التعبير عن الفكر والفلسفة الإنسانية في إطار ملحمي ودرامي. تكشف تحفته القدر عن نفسه كمجموعة متنوعة من المواضيع: (المثالية ، الطبيعة ، الدين ، المرأة ، التشاؤم ، المعاناة). كل هذه المواضيع ذات صلة بالرؤية الفلسفية للشاعر التي نتج التشاؤم عنها من العزلة المؤلمة للشاعر.كان الشاعر قادرًا على تطوير أفكار تعبر عن معاناة الإنسانية وحالة الإنسان ؛ يبدو أن هذه الرؤية الفلسفية وسيلة جديدة للتعبير تسمح له بتحقيق هذا النوع من الشعر.أصبحت المعاناة التي تم الكشف عنها في هذه الرؤية مصدرًا لـ Vigny وشرطًا أساسيًا للإلهام الشعري في نفس الوقت. هذه المعاناة هي قوة الإنسان وثباته. الرجل ، لأن Vigny أمام مصير مأساوي ؛ إنه يمثل كرامته وقوته ، لكن ضعفه يجعله ضحية لمصير مأساوي
MANAGEMENT OF FURCAL PERFORATION USING BIODENTINE – A CASE REPORT
Authors: Umesh Sahana , Vagarali Hemant , Pujar Madhu , Virendra Gaonkar Akanksha , Anjany Chowdary Gunnam , Suhail Mirza Mohammed
Published: May 2023

Management of furcal perforation in a root canal retreatment is often challenging as the outcome of the perforation sealing depends on several parameters. The introduction of several bioactive cements and magnication systems has made the sealing of perforations easier and the outcome more predictable. Current advances in endodontics and biomaterials has made the recovery of tooth structure and function possible even in the most complicated cases. Despite the breakthroughs in techniques and resources, furcal repair remains taxing. This case report shows successful management of multiple furcal perforation with a questionable prognosis in root canal retreatment using biodentine.
MICROBIAL PROFILE OF ULCERATIVE KERATITIS AT TERTIARY LEVEL HOSPITAL
Authors: Sawalkar Shweta , Bade Jyoti , Chande Chhaya , Dev Madhuparna , Joshi Ameeta
Published: May 2023

Background: Keratitis is the term applied for inammations of the cornea. Ulcerative keratitis is a common potentially sight threatening ocular infection that may be caused by bacteria, fungi, viruses or parasites. Corneal ulcer is an ocular emergency that requires prompt management to ensure the best visual outcome for the patient. Otherwise, it can result in scarring and blindness. Aim and objectives: To study Microbial causes and to identify risk factors, and corelation of clinical features of ulcerative keratitis with etiological agents Materials and methods: Total 325 corneal ulcer cases were studied. Corneal scrapings were collected and subjected for examination by Gram's stain, 10% KOH, bacterial and fungal culture. Antibiotic susceptibility of the bacterial pathogens was performed by Kirby Bauer disc diffusion method as per CLSI guidelines with various groups of antibiotics. MIC for vancomycin were determined for study isolates by Epsilometer test. Results: Totally 325 infectious corneal ulcers were studied in detail. Aetiological agents were isolated in 115 (35.38%) cases. Majority of the isolates were fungal agents (44.18%), belonging to the Aspergillus (21.05%), Fusarium (14.47%). Bacterial corneal ulcer was less common (25.49%). The predominant bacterial pathogen isolated was Staphylococcus epidermidis, followed by Pseudomonas aeruginosa. no Acanthamoeba were identied. The sensitivity of potassium hydroxide staining was almost 100% in culture-proven fungal cases. Trauma is the leading cause for the corneal ulcers. Majority of the bacterial isolates were susceptible to amikacin. Conclusion: Ulcerative keratitis being a sight threatening disorder, early suspicion, rational use of laboratory diagnostic procedures, identication of the causative organisms and timely institution of appropriate antimicrobial therapy based on the prevailing sensitivity pattern of the isolates could save the eye from this preventable cause of blindness
“MYCOLOGICAL STUDY OF RESPIRATORY TRACT SAMPLE IN A TERTIARY CARE HOSPITAL IN CENTRAL INDIA”
Authors: Choursiya Ankush , Jain Khyati , Prabhu K Tukaram , Sadawarte Kalpana
Published: May 2023

Background:- Respiratory tract Infections are the one of the commonest infections seen in the community
and hospitalized patients. In immunocompromised patients, opportunistic fungal infections have
become more common in recent years. The aim of the present study was to obtain Insight into the Mycological study and
comparison between Culture and KOH Mount of respiratory tract infection patients. Introduction:- Respiratory tract Infections
are the one of the commonest infections seen in the community and hospitalized patients. In immunocompromised patients,
opportunistic fungal infections have become more common in recent years. KOH examination and culture on SDA are still the
most common diagnostic methods use in research clinical laboratories. Thus, this study is carried out to compare KOH & fungal
culture for diagnosis of respiratory fungal infection. Detection of fungus from respiratory tract s Aim:- ample and Identication
of grown fungus. This study was a cross sectional study that was carried out between F Material & Method:- ebruary 2022 to
February 2023 in the department of microbiology of PCMS&RC Bhopal. Total 140 samples of suspected Respiratory tract
infection were subjected to KOH mount examination & culture on SDA. Fungus was identied by conventional methods. Result:-
Prevalence of fungal pathogen in respiratory tract infection was found to be 37.85%. KOH negative and culture positive were
26.41%. Our study points out importance of fungal culture on clinically suspected fungal Respirator Conclusion:- y tract
infection, even though KOH examination oncomes out to be negative. Therefore, fungal culture is imperative for correct diagnosis and proper treatment.
Gamma Generalized Extended Inverse Exponential Distribution: A Novel Distribution in Modeling COVID-19 Cases in Nigerian Africa: A Personal Perspective
Authors: Ogunde A.A. , Chukwu A.U. , Oseghale O.I. , Nwanyibuife O.B.
Published: May 2023

In this study, we developed a novel distribution called Gamma Inverse Exponential (GIE) distribution, which has proved to be a more flexible distribution in modeling COVID-19 case fatality in Nigeria. We studied some statistical properties of the new distribution, which include: moments,
incomplete moments, quantile function, Renyi entropy, and mean deviation. A real-life data application to a number of reported cases of COVID-19 infection between March 2019 to 2021 shows that the GIE distribution has a better fit than some competing distributions in fitting the data. Time series analysis of the COVID-19 data is also considered.
Public Health Risks Assessment of Bioaerosols from Different Locations in Bariga Metropolis of Shomolu Local Government Area, Lagos State, Nigeria
Authors: Ogah J.O. , Mba O.O. , Okelola C.A. , Kolawole R.M.
Published: May 2023

The increasing human populations and their daily activities have contributed to bioaerosols generation in Bariga, leading to air pollution with consequent public health threats to exposed individuals. This study aimed to assess public health risks associated with bioaerosols generated from outdoor activities in Bariga community, Shomolu Local Government Area of Lagos State. An analytical observational study design based on the measurement of meteorological parameters in the field and laboratory analysis of bioaerosol particles collected from the study population using a handheld Kestrel 3000 weather meter and standard microbiological procedures,
respectively, was adopted. Four hundred (400) samples of bioaerosol particles obtained by the Taro Yamani formula at a 5% level of precision were analyzed. Passive air monitoring using Koch’s sedimentation method was employed for total viable counts, while microbial isolates were identified using cultural, morphological, and biochemical characterization. The variation in environmental parameters obtained was largely dependent on time and seasons, with a consequent adverse effect on the presence and movement of bioaerosol particles in the atmosphere. Microbial populations varied in densely and less-densely populated study areas. The study identified Bariga as a high-risk area with CFU above 102 –104 CFU/m3, thus capable of causing bioaerosols-related diseases. A total of twelve (12) bacterial and six (6) fungal genera were isolated, with Gram-positive bacteria having a prevalence rate of 87.02% and Gram-negative bacteria at 12.99%. The predominant fungi, on the other hand, were 87.94% mold and
12.06% yeast. One-way analysis of variance (ANOVA) at 0.05 significance level showed a significant correlation (F-ratio ˃ F-critical value) (p=0.05) between exposure to bioaerosol particles and associated health risks in the exposed individuals. We recommend that Lagos State Government should intensify efforts to reduce the public health effect of bioaerosols through policies, structural planning, development, and education on environmentally friendly activities and personal hygiene
Communiqué of 8th African Conference on One Health and Biosecurity
Theme: Strengthening Health Security and Mitigating Biological Threats in Africa
Authors: Global Emerging Pathogens Treatment Consortium
Published: May 2023

The 8th African Conference on One Health and Biosecurity with the theme Strengthening Health Security and Mitigating Biological Threats in Africa was held Wednesday, 2nd November- Friday 4th November, 2022. The 8th edition of the annual conference was organized by the Global Emerging Pathogens Treatment Consortium (GET Africa) with the support of Lagos State Ministry of Health, and in partnership with major non-state institutions across the World. The conference focused on ways of improving health security in the African Continent and addressing emerging biological threats. The 3-day conference present a unique forum to raise National, Regional and Continental awareness and engage in deep introspection and robust interactions on existing health security measures and how to strengthen them, as the first urgent step toward mitigation of emerging biological threats in Africa. The conference, attended by professionals and stakeholders across the various strata of the health and allied sectors of the society, received presentations from resource persons in the healthcare sector and related fields. The following observations and recommendations emerged from exhaustive deliberations
Data-Driven Participant Selection and Bandwidth Allocation for Heterogeneous Federated Edge Learning
Authors: Albaseer Abdullatif , Abdallah Mohamed , Al-Fuqaha Ala , Erbad aiman
Published: May 2023

This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible.