bluuebunny/crossref_metadata_2025 huggingface dataset:
Generalization of Power Lindley Distribution: Properties and Applications
Authors: Eissa Fatehi Yahya , Sonar Chhaya Dhanraj
Published: June 2024

This article introduces the generalized Kumaraswamy power Lindley (GKPL) distribution, a novel probabilistic model derived by combining the generalized Kumaraswamy (GK-G) family with the power Lindley (PL) distribution. The GKPL distribution encompasses a wide range of distributions, including Kumaraswamy power Lindley, Kumaraswamy Lindley, generalized power Lindley, generalized Lindley, power Lindley, and the well-known Lindley, as special cases. Fundamental properties are derived, such as the hazard rate function, survival function, quantile function, reverse hazard function, moments, mean residual life function, entropy, and order statistics. To determine the parameters of the GKPL distribution, four estimation methods, including maximum likelihood, least squares, Cramer-von Mises, and Anderson-Darling methods, are used to estimate the parameters of the GKPL distribution. The effectiveness of the estimation techniques is assessed by employing Monte Carlo simulations. The adaptability and validity of the proposed GKPL distribution are compared with alternative models, including the Kumaraswamy power Lindley (KPL), Extended Kumaraswamy power Lindley (EKPL), type II generalized Topp Leone-power Lindley (TIIGTLPL), exponentiated generalized power Lindley (EGPL), generalized Kumaraswamy Weibull (GKW), generalized Kumaraswamy log-logistic (GKLLo), and generalized Kumaraswamy generalized power Gompertz (GKGPGo) distributions, through analyses of three real datasets.
A new SVM solver applied to Skin Lesion Classification
Authors: Silva Jonatas , Alves Atécio , Santos Paulo , Matioli Luiz
Published: June 2024

We present a unified framework for solving the nonlinear Support Vector Machines (SVM) training problems. The framework is based on an objective function approximation so that the Problem becomes separable, with low computational cost root-finding methods to solve the resulting subproblems. Because of the diagonalization of the objective function in the first stage of the framework, we named the new SVM solver DiagSVM. To test the performance of the DiagSVM, we reported preliminary numerical experiments with benchmark datasets. From the results, we chose the best combination used in the framework to solve the Skin Lesion Classification (SLC) problem. Since melanoma (skin cancer) is the most dangerous and deadliest disease that affects the skin, the application of the DiagSVM can be integrated into several Computer-Aided Diagnosis (CAD) systems to help them detect skin cancer and significantly reduce both morbidity and mortality associated with this disease. Machine learning (ML) and deep learning (DL) based approaches have been widely used to develop robust skin lesion classification systems. For the SLC problem, three pre-trained convolutional neural networks (CNN), Xception, InceptionResNetV2 and DenseNet201, were employed as feature extractors and their dimension was reduced using Principal Component Analysis (PCA), Kernel Principal Component Analysis (KPCA) and Independent Component Analysis (ICA). Finally, the samples were fed into two SVM solvers: DiagSVM and Libsvm. The experiment shows that using PCA, KPCA, or ICA, the SVM can perform better than without feature reduction. The classification performance of the proposed methodology is analyzed on the ISIC2017 and PH2 datasets. The benchmark and SLC results indicate a promising proposal for accuracy, specificity and sensitivity metrics.
Enhancing Volatility Prediction: Comparison Study Between Persistent and Anti-persistent Financial Series.
Authors: Bakkali Youssra , EL Merzguioui Mhamed , Akharif Abdelhadi
Published: June 2024

Predicting financial volatility is crucial for managing risks and making investment decisions. This research introduces a novel method for creating a prediction model that effectively handles the intricate dynamics of financial time series data. By utilizing the advantages of both time series models and recurrent neural networks, we present two hybrid models: Vanilla-RGARCH and LSTM-RGARCH. These models are designed to overcome the shortcomings of Realized GARCH (RGARCH) and HAR models in representing various stylized facts of financial data. While RGARCH models are proficient in capturing asymmetry, they fail to address long-term memory. Conversely, HAR models are adept at capturing long-term memory. The innovative model combines forecasted values from the RGARCH model with components from the HAR model, including daily, weekly, and monthly realized volatility, within a neural network framework. This combination helps to bypass the complexities involved in directly merging the HAR model with RGARCH. Through this method, our hybrid models provide a thorough depiction of the characteristics of financial data.
The proposed approach is evaluated on two distinct types of financial series; persistent and anti-persistent, to demonstrate its robustness and capacity to generalize in different contexts. The performance of hybrid models is compared to that of conventional RGARCH and HAR models, demonstrating their superiority in precise prediction of financial volatility and their ability to capture complex trends observed in real data. In addition, a principal component analysis (PCA) is used to visualize the results and facilitate their interpretation.
INVESTIGATION OF ROOT CANAL MORPHOLOGIES AND SYMMETRY OF ANTERIOR AND PREMOLAR TEETH WITH CBCT IN A GROUP OF TURKISH POPULATIONS
Authors: Coşgun Baybars Sümeyye , Yeler Defne
Published: June 2024

Objective
The aim of the study was to examine the root canal morphology and symmetry of anterior and premolar teeth in a group of Turkish population using cone beam computed tomography.
Methods
The images of individuals who came to XXX University Faculty of Dentistry between 2015-2017 and had CBCT for various reasons were scanned retrospectively. A total of 3702 teeth, root numbers, root canal morphology and symmetry were examined. Vertucci classification was used to determine root canal morphologies.
Results
In the study, a total of 3702 upper and lower teeth of 185 male and 215 female patients between the ages of 16-79 (mean 35.2) were evaluated. Vertucci Type I (62.0-89.3%) canal shape was the highest in all teeth examined in the mandible. A high rate of Type III (32.2-32.4%) canal shape was observed in the incisors of the mandible. Type I canal shape was highest (93.5% 95.9%) in upper anterior teeth, each root had type I canal shape in all two-rooted maxillary first premolars, and Type IV canal (79.4%) was highest in single-rooted maxillary first premolars. A high rate of Type I (41.6%) and then Type IV (23.3%) canal shapes were seen in the upper second premolars. The lowest symmetry rate was 85.0% in teeth 31-41, the highest symmetry rate was seen in teeth 12-22 and 14-24 with 96.2%. In general, the symmetry ratio was lower in all lower teeth compared to upper teeth.
Conclusion
According to the literature, although the tooth groups have certain common features among themselves, it has been revealed that morphological differences can be found in the studies. In this study, it is aimed to contribute to these differences.
Psychological Pain and Traumatic Experiences in Bipolar Disorder
Authors: Kazğan Kılıçaslan Aslı , Yıldız Sevler , Kurt Osman , Sırlıer Emir Burcu
Published: June 2024

Aim: The present study attempted to explore the traumatic experiences of patients with bipolar disorder (BD), uncover the prevalence frequency of psychological pain and associated suicidal ideation among them, and investigate the relationships between these variables.
Materials and Methods: Sixty BD type I patients and 60 healthy controls were included in the study. We collected the data using The Sociodemographic Information Form, The Traumatic Experience Checklist (TEC), The Beck Scale for Suicidal Ideation (BSSI), The Visual Analogue Scale (VAS), The Psychache Scale (PS), The Beck Depression Inventory (BDI), and The Young Mania Rating Scale (YMRS).
Results: The findings showed that the patient group scored significantly higher on the scales than the control group (p < 0.05). Their PS total score was significantly predicted by the TEC composite scores of emotional neglect (β = -4.289, p = 0.001), emotional abuse (β = -3.798, p = 0.002), physical abuse (β = -4,000, p = 0.001), sexual abuse (β = -4.175, p = 0.002), sexual harassment (β = -2.941, p = 0.017), and trauma (β = 4.063, p = 0.001) score. And the patients’ TEC total score significantly predicted their BSSI score (β = 0.191, p = 0.013).
Conclusion: Overall, compared to the healthy controls, the BD patients had more traumatic experiences, felt greater psychological pain even in the remission period, and experienced more severe suicidal ideation. In addition, while the number of trauma significantly predicted the severity of suicidal ideation, its type and severity significantly predicted psychological pain. Ultimately, the processes and causes of mental suffering among BD patients, a risk group for suicide, should always be under the spotlight even during the remission period.
Association of Several Innate Immune Response Gene Polymorphisms with COVID-19 in Turkish Population
Authors: Soyöz Mustafa , Altın Zeynep , Eldem Aslı , Togay Alper , Karahan Çöven Hatice İlayhan , Oz Tuba , Pehlivan Melek , Kılıçaslan Ayna Tülay , Pirim İbrahim
Published: June 2024

Aim: The coronavirus disease 2019 (COVID-19) was caused by severe acute respiratory syndrome 2 virus (SARS-CoV-2), has spread globally. Gender and age have been established as risk factors for severe COVID-19. However, these factors do not fully explain the effects on disease risk. According to researchers, single nucleotide polymorphisms (SNPs) on multiple genes could affect the severity of COVID-19. The progression of viral diseases depends on the characteristics of the patient's innate immunity. The effectiveness of the innate immune system depends on the patient's genetic factors, including SNPs in the TLR, CCR5, and RIG-I genes.
In this study, we researched the association of allele and genotype frequency in SNPs of COVID-19 patients with age and gender.
Materials and Methods: In our study, 200 patients with moderate COVID-19 were included. Single nucleotide polymorphisms (SNP) of TLR3 (rs3775291, rs3775290, rs5743305), TLR7 (rs179008), TLR8 (rs3764880), RIG-I (rs12006123), and CCR5 (rs1799987) were studied. SNPs were determined by restriction fragment length polymerase chain reaction (RFLP-PCR) methods.
Results: In the COVID-19 patients, we examined the patients were evaluated in terms of allele and genotype frequencies and the association between some parameters like age, and gender. In our results, TLR3 rs5743305 AA genotype frequency (p=0.03) and TLR7 rs179008 AA genotype frequency (p=0.03) were found to be significant in terms of age and gender.
Conclusions: These SNP data is assessed against disease risk to plan personalized pharmacological therapy for COVID-19 patients.The findings from this study will be useful for genome-wide association studies (GWAS).
Prawo do pracy w międzynarodowych systemach ochrony praw człowieka
Authors: Jarczyński Krzysztof
Published: June 2024

Związane z wielkim kryzysem bezrobocie było jedną z przyczyn dojścia nazistów do władzy, a w konsekwencji — wybuchu drugiej wojny światowej i trwającego w jej trakcie kryzysu ochrony praw człowieka. Po wojnie społeczność międzynarodowa podjęła wysiłki w celu stworzenia powszechnego systemu ich ochrony, obejmującego również prawo do pracy. Artykuł jest rezultatem badań nad doniosłymi aktami prawa międzynarodowego poświęconymi prawu do pracy. Zawiera próbę porównania rozwiązań funkcjonujących w systemach ochrony praw człowieka: powszechnym, wyspecjalizowanym i regionalnych. Szczególną uwagę zwrócono na problematykę związaną z prawem do urlopu, regulacją czasu pracy, prawem do działalności związków zawodowych oraz ochroną przed dyskryminacją.
DECIPHERING THE GENETIC LINKS BETWEEN PSYCHOLOGICAL STRESS, AUTOPHAGY, AND DERMATOLOGICAL HEALTH: INSIGHTS FROM BIOINFORMATICS, SINGLE-CELL ANALYSIS, AND MACHINE LEARNING IN PSORIASIS AND ANXIETY DISORDERS
Authors:   Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, Liu Xiao-Ling
Published: June 2024

The relationship between psychological stress, altered skin immunity, and autophagy-related genes (ATGs) is currently unclear. Psoriasis is a chronic skin inflammation of unclear etiology that is characterized by persistence and recurrence. Immune dysregulation and emotional disturbances are recognized as significant risk factors. Emerging clinical evidence suggests a possible connection between anxiety disorders, heightened immune system activation, and altered skin immunity, offering a fresh perspective on the initiation of psoriasis. The aim of this study was to explore the potential shared biological mechanisms underlying the comorbidity of psoriasis and anxiety disorders. Psoriasis and anxiety disorders data were obtained from the GEO database. A list of 3254 ATGs was obtained from the public database. Differentially expressed genes (DEGs) were obtained by taking the intersection of DEGs between psoriasis and anxiety disorder samples and the list of ATGs. Five machine learning algorithms used screening hub genes. The ROC curve was performed to evaluate diagnostic performance. Then, GSEA, immune infiltration analysis, and network analysis were carried out. The Seurat and Monocle algorithms were used to depict T-cell evolution. Cellchat was used to infer the signaling pathway between keratinocytes and immune cells. Four key hub genes were identified as diagnostic genes related to psoriasis autophagy. Enrichment analysis showed that these genes are indeed related to T cells, autophagy, and immune regulation, and have good diagnostic efficacy validated. Using single-cell RNA sequencing analysis, we expanded our understanding of key cellular participants, including inflammatory keratinocytes and their interactions with immune cells. We found that the CASP7 gene is involved in the T-cell development process, and correlated with γδ T cells, warranting further investigation. We found that anxiety disorders are related to increased autophagy regulation, immune dysregulation, and inflammatory response, and are reflected in the onset and exacerbation of skin inflammation. The hub gene is involved in the process of immune signaling and immune regulation. The CASP7 gene, which is related with the development and differentiation of T cells, deserves further study. Potential biomarkers between psoriasis and anxiety disorders were identified, which are expected to aid in the prediction of disease diagnosis and the development of personalized treatments.
Perspectives on the Implementation of Mental Health Apps on Clinical Interventions in Mental Health
Authors: Neto Daniel , Spínola Carla , Pinto H Sofia , Gago Joaquim
Published: June 2024

N/a.
A relação entre a hospitalização por covid-19 e o transtorno de estresse pós-traumático: uma revisão integrativa
Authors: Sousa Gabriela Silva , Cerqueira Gustavo Luis Caribé
Published: June 2024

Este estudo consistiu em uma revisão integrativa da literatura, que objetivou analisar a manifestação de sintomas de transtorno de estresse pós-traumático (TEPT) em pacientes que vivenciaram o processo de hospitalização por covid-19, conforme a literatura científica. Para a coleta dos dados, foram consultadas as bases de dados PubMed, LILACS e Cochrane Library. Definiram-se como critérios de inclusão: ensaios clínicos, publicados entre 2020 e 2023, disponíveis em português, inglês ou espanhol, que abordassem temas relacionados à prevalência de TEPT associada à hospitalização por covid-19. A amostra final foi composta por quatorze artigos, os quais foram analisados por meio da sistematização de eixos temáticos: 1) TEPT e pacientes hospitalizados por covid-19; 2) A gravidade da doença covid-19 e o TEPT; 3) Apoio social, impacto psicológico e TEPT. Apesar de escassas as evidências dos efeitos diretos da hospitalização na saúde mental dos pacientes, há indicações de níveis aumentados de TEPT em pacientes infectados e hospitalizados por covid-19.
Perspectivas do ensino remoto em Ciências Contábeis: uma investigação com os discentes durante a pandemia de covid-19
Authors: Medeiros Elias Silva de , Bicalho Carolina Cristina , Murtinho Ligia Thalita Santos , Marques Eliane Lopes da Silva
Published: June 2024

A pandemia de covid-19 trouxe impactos de grandes magnitudes, entre eles grandes mudanças que precisaram ser feitas na forma de conduzir o ensino no curso de Ciências Contábeis, resultando em paradigmas a serem analisados e a visão dos discentes sobre o modelo de ensino remoto, o qual foi utilizado. Sendo assim, este estudo propõe avaliar a percepção dos discentes diante a modificação do formato presencial para o modelo remoto de ensino no curso de Ciências Contábeis neste período de pandemia. A pesquisa foi realizada no ano de 2020, com aplicação de um questionário com 16 perguntas a 50 acadêmicos do curso de Ciências Contábeis. Nessa pesquisa, foi possível perceber o panorama da mudança do ensino presencial para o remoto para esses acadêmicos. Foi um período que houve a grande necessidade de se reinventar para os discentes, apesar dos desafios e da insatisfação em específicos aspectos.
Mentes e corpos na construção de conhecimento e no desenvolvimento de habilidades: um percurso pelos letramentos sensoriais e pelas abordagens de feeling e meaning
Authors: Campos Erika Regina , Maciel Ruberval Franco
Published: June 2024

A linha demarcatória entre mentes e corpos e razão e emoção, estabelecida pela ciência clássica, ainda é fortemente percebida nos diversos estudos e nas pesquisas nas áreas das ciências humanas e da educação. Este artigo tem como propósito colocar sob desconstrução a transcendência dos processos cognitivos – a mente, em relação aos sentidos sensoriais e os sentimentos, o corpo, no que diz respeito à construção do conhecimento e ao desenvolvimento do saber humano. Para tanto, decidimos analisar um breve relato autobiográfico acerca da trajetória acadêmica de um dos autores deste artigo. Com respeito ao percurso teórico adotado neste trabalho, lançamos mão do letramento sensorial, proposto por Mills (2016), e as concepções de feeling e meaning, discutidas por Lemke (2010, 2013), pelo fato dessas pesquisas defenderem a imanência do corpo em relação à mente.
Geninha: trajetórias de mulheres negras que inspiram para a práxis de um currículo afrocentrado
Authors: De Carvalho Thaís Regina , Carvalho Carol Lima de , Carvalho Sônia Santos Lima de
Published: June 2024

O presente artigo retrata reflexões sobre o âmbito da educação e as relações étnico-raciais, com foco em questões curriculares por meio das trajetórias, histórias e memórias de mulheres negras. Ele está atrelado aos estudos e às análises do Coletivo GENINHAS – Grupo de Extensão, Pesquisa e Ensino em Educação das Relações Étnico-Raciais (GENINHAS – GEPE/ERER), em especial as discussões realizadas no grupo de estudos GENINHAS. Com base em epistemologias negras, este texto apresenta como objetivo: debater sobre as possibilidades para a práxis de um currículo afrocentrado a partir das histórias de mulheres negras nas cenas do carnaval da cidade de Florianópolis, Santa Catarina. Para isso, foi realizada uma pesquisa bibliográfica e documental, além de entrevistas semiestruturadas com familiares da nossa protagonista Geninha e com as demais mulheres negras envolvidas nas escolas de samba de Florianópolis. A partir do (re)conhecimento dessas histórias, trajetórias, memórias e narrativas, constatamos que elas podem se constituir como integrantes de uma cultura negra que corrobora para uma perspectiva de currículo afrocentrado. Contudo, tais conhecimentos não são abordados de modo expressivo no cotidiano educacional. Almejamos, com essa produção textual, contribuir para a implementação de uma educação antirracista.
Corpos que lutam... Corpos que existem... Corpos que se inscrevem e escrevem na diferença, na educação, na ciência, nas cartasplatôs e nos platôsantirracistas...
Authors: Dutra-Pereira Franklin Kaic , Lima Rafaela dos Santos , Lima Rafaela dos Santos
Published: June 2024

Guiando-nos pelas pegadas de intercessoras/es intelectuais das Filosofias da Diferença e da Contracolonialidade, neste textoensaio exploramos conexões, pluralizamos significados e desafiamos convenções que homogeneízam e tranquilizam o pensamento. Por esses motivos, criamos conceitos e investimos no enredamento de algumas noções teóricas, no sentido de provocarmos deslocamentos no instituído, guiando-nos pela seguinte pergunta disparadora: como é possível uma ciência química antirracista? Atravessadas/os por tais agenciamentos, apresentamos a escrita de cartasplatôs como dispositivo na/para a luta antirracista, a partir de uma produção realizada por estudantes da licenciatura em Química, de uma universidade pública do Nordeste, enquanto possibilidade de construção de possíveis aberturas na educação durante as aulas de um estágio supervisionado obrigatório. A partir da apreciação de tais exemplares, percebemos uma pluralidade de direções e possibilidades de leitura, que apontam para a potência de pesquisas que se comprometem com corpos que se ins/escrevem na diferença. As cartasplatôs criam, inventam, modos de viver a vida, reafirmando a diferença e os corpos negros, apostando em platôsantirracistas e ne escrita enquanto artefato cultural e possível de luta antirracista.
Entre memórias e silêncios: repensando as questões curriculares afrocentradas na era pós-colonial
Authors: Baroni Patricia , Cosi Helena Maria
Published: June 2024

Este artigo investiga a intersecção entre colonialismo e educação, enfatizando a necessidade de repensar paradigmas educacionais sob a lente de epistemologias afrorreferenciadas decoloniais. Destaca a prevalência do pensamento eurocêntrico que perpetua o silenciamento de saberes não europeus, como característica do projeto ocidental. Com uma abordagem qualitativa, baseada em revisão bibliográfica e a vivência em contexto de racialização em Portugal, o artigo propõe uma virada epistemológica, a qual busca reconhecer e valorizar conhecimentos pluriversais, desmantelando práticas que desumanizam os povos colonizados. O trabalho argumenta a favor de uma educação carregada de compromisso político, desafiando a ideia de neutralidade educativa. O artigo se estrutura em três seções: explorando a "ferida colonial" e como ela se manifesta nas práticas educativas contemporâneas; o “epistemicídio”, enfatizando a educação como veículo para a manutenção de poder e dominação; e a “tessitura de percursos educativos”, contemplando caminhos para abordagens pós-coloniais, que buscam curar as marcas deixadas por uma história de exclusão. Os resultados indicam que uma abordagem educacional decolonial, que valoriza a diversidade de saberes e culturas, torna essencial desmantelar estruturas opressivas e semear novos horizontes. O artigo conclui ressaltando a importância da descolonização como uma questão de cura, e a necessidade de identificar e combater modelos de dominação na sociedade como um todo.
On a Method for Integrating the Equations of Rigid Body Motion in Three Homogeneous Force Fields
Authors:   Steklov Mathematical Institute of Russian Academy of Science, Gorr G. V.
Published: June 2024

This paper presents a method for integrating the equations of motion of a rigid body having a fixed point in three homogeneous force fields. It is assumed that under certain conditions these equations admit an invariant relation that is characterized by the following property: the velocity of proper rotation of the body is twice as large as the velocity of precession. The integration of the initial system is reduced to the study of three algebraic equations for the main variables of the problem and one differential first-order equation with separating variables.
Performance of Three-Parameters Dirichlet Universal Portfolio During COVID-19 Pandemic
Authors: Yeok Qin Goh , Sook Theng Pang
Published: June 2024

Stock returns are often the primary objectives for investors, financial analysts as well as the politicians with the intention to make a right investment decision. In this paper, we study the performance of the three-parameters Dirichlet universal portfolio on selected stocks during the COVID-19 pandemic. Some empirical results are obtained based on some selected data sets from the local stock exchange. The period of trading of the stocks are selected from 2nd January 2020 to 18th August 2021 consisting of 400 trading days. The empirical results seem to indicate the three-parameters Dirichlet universal portfolio performs well during the COVID-19 pandemic by a proper choice of parameters. Also, this study provides evidence that the capital achievement at the end of the 400th trading days is influenced by the arrangement of the stocks within each selected data set. Besides, the performance of the homogeneous datasets, particularly, main data set from healthcare sector, is better than heterogeneous datasets during the COVID-19 pandemic.
Characterization of Student’s Performance in Massive Open Online Courses (MOOC)
Authors: Ching Joe Tan
Published: June 2024

Massive Open Online Courses (MOOC) allow students to learn online at any time and from any location. Unfortunately, poor completion rates and a large student group make it difficult for teachers to keep track of their student’s progress. Due to a lack of adequate counselling, students who perform poorly are more likely to give up. The goal of this study was to predict student’s certification by analyzing data on student’s learning behavior. The initial data on learning behavior was obtained from edX, a well-known MOOC platform. Based on this data, three statistical models such as logistic regression, graph convolutional network, and cluster analysis were utilized to predict student’s performance. The proposed model’s usefulness was demonstrated by using a testing set of data from the actual courses. Our findings showed that tracking student activity in terms of number of unique days active, watching videos, participating in forum discussions, and exploring more courseware content might help predict student’s performance in MOOC and enhance completion rates.
Comparison of Three Gas Chromatographic Methods – Identification of Terpenes and Terpenoids in Cannabis sativa L.
Authors: Hanuš Lumír Ondřej
Published: June 2024

Terpenes and terpenoids content in cannabis plant was already studied in the past with three used methods. Since these works did not compare the content of these substances under the same conditions, we tried to make this comparison exactly.
Three different gas chromatography/mass spectrometry (GS/MS) methods - hexane based liquid extraction (Liq), static head-space extraction (HS), and head-space solid phase microextraction (SPME) – were compared to identify volatile compounds in four different cannabis chemotypes - Green fields, Titan chemotype, Black Domina chemotype, and Neptune chemotype.
The main compounds focused on were monoterpenes/monoterpenoids and sesquiterpenes/sesquiterpenoids. Extraction with hexane gave comparable results, however the other two methods allowed for the identification of more substances.
For the final evaluation of the comparison of the three methods of analysis, extraction with hexane gives comparable results (which is advantageous for quantitative analysis), although the other two methods allowed for the identification of more substances. This means that the same method should be used everywhere for the quantitative evaluation of constituents in cannabis.
A Study on The Relationship Between Sport Psychological Capital, Coach Leadership Behavior, and Training Satisfaction Among Sports Candidates
Authors: Liu Yongsen , Liu Li , Zhang Tingran , Luo Jiong
Published: June 2024

Objective: This study aims to investigate the relationship between sports psychological capital, coach leadership behavior, and satisfaction among middle school students in the 2023 sports college entrance examination in Chongqing. Methods: Using the structural questionnaire design, this paper carries out a questionnaire survey on the candidates who come to participate in the volleyball specialty college entrance examination in Chongqing, the corresponding database was established and the data were statistically processed by spss21.0 and amos18.0. Results: 1) there was a significant positive correlation between sports psychological capital, coach leadership behavior and examinees satisfaction; 2) sports psychological capital and coach leadership behavior had a certain influence on five dimensions of examinees' personal treatment, personal performance, team integration, team interaction and support from relatives and friends; 3) The sense of self-efficacy in sports psychological capital and coach's leading behavior are the most important to examinees' satisfaction; 4) Both coaches' leadership behavior and sports psychological capital can directly affect examinees' satisfaction, but sports psychological capital is the most important. It can not only directly affect examinees' satisfaction, but also act as an intermediary between coaches' leadership behavior and examinees' satisfaction. Conclusion: Sports College Entrance Examination Students can improve training satisfaction and sports performance by strengthening sports psychological capital training and perceiving coach's leadership behavior; In the leadership behavior of coaches, we should emphasize training and appropriately weaken authoritative teaching, while the training of sense of hope and toughness should be highlighted in sports psychological capital.
Relationship between Instagram, Body Satisfaction, and Self-Esteem in Early Adulthood
Authors: Flores-Mata Cristina , Castellano-Tejedor Carmina
Published: June 2024

Our study focused on investigating the impact of Instagram use on body satisfaction and self-esteem among participants aged 20 to 40 years (N = 95) through a cross-sectional survey design in which the Rosenberg Self-Esteem Scale, the Body Shape Questionnaire (BSQ), and ad hoc designed questions were administered. The results highlight the influence of Instagram on body dissatisfaction (p = .005) but not on self-esteem (p = .211). Gender was not found to be an influential factor (p = .173). However, it was found that greater body satisfaction correlates with higher self-esteem and vice versa (p < .001). Finally, we concluded that the number of hours users in the sample spend on Instagram is related to greater body dissatisfaction but not to lower self-esteem.
Contrafreeloading and Its Influencing Factors in Budgerigars (Melopsittacus undulates): Implications for Their Feeding and Welfare
Authors: Zhang Qi-Xin , Tao Yue , Zhu Yu-Ting , Li Hui , Zhu Yong
Published: June 2024

Contrafreeloading (CFL) refers to animals' tendency to prefer obtaining food through effort rather than free access to food. Researchers have proposed various hypotheses to explain this intriguing phenomenon, but few studies have comprehensively analyzed its influencing factors. In this study, we observed the choice of alternative food containers in budgerigars to investigate their CFL tendencies and the effects of pre-training, food deprivation, and effort required on the CFL levels. The results show that, like most captive animals, budgerigars without food deprivation tend to choose challenging food containers. Additionally, the study finds that pre-trained budgerigars prefer to choose highly challenging food containers, while food-deprived budgerigars tend to choose Easy food containers. Moreover, budgerigars showed more selection time proportion on moderate challenging than high challenging food containers. In conclusion, budgerigars exhibit CFL tendencies, and pre-training enhances their CFL levels, while high challenge and deprivation of food decrease their contrafreeloading level. Studying animal contrafreeloading can help understand why animals choose to expend effort to obtain food rather than accessing it for free, and it also has implications for setting feeding environments to enhance the animal welfare of captive and domesticated animals.
Astrosat SXT X-ray Spectrum Changes over the 35-Day Cycle in Hercules X-1
Authors: Leahy Denis , Sharma Riddhiman
Published: June 2024

Observations of the X-ray binary system Her X-1 by the AstroSat Soft X-ray Telescope 1 (SXT) were carried out in 2020 through 2023 with the goals of measuring X-ray spectrum changes with the 35-day disk rotation phase and measuring eclipses at different 35-day phases. The four multi-day long observations were scheduled during: turn-on to Main High (MH) and MH rise; MH state; Short High (SH) state; and Low State (LS). 35-day phase was determined using monitoring observations with the Swift Burst Alert Telescope (BAT). Nine eclipses were observed at a range of 35-day phases, with at least one eclipse during each observation. Data with dips were separated from data without dips. The variation of X-ray spectral parameters vs. 35-day phase shows the following: eclipse parameters are nearly constant, showing that the scattering corona does not change with 35-day phase; dips show an increase in covering fraction but not column density compared to non-dip data; the 1 keV line normalization indicates an origin in a small region near the continuum emission region, likely the magnetospheric accretion flow from the inner disk onto the neutron star; and the change in blackbody normalization (area) shows that the emission region is much larger than the 1 keV emission region, and consistent with the inner edge of the accretion disk.
THE INFORMATIONAL-EDUCATIONAL ANALYSIS OF THE PHARMACIST SPECIALISTS NEEDS ON PHARMACIST CONSULTING THE TYPE 2 DIABETES MELLITUS IN THE CRIMEAN REPUBLIC
Authors:   Crimean Federal University, EGOROVA ELENA A. , SHEIKHMAMBETOVA LILYA N. ,   Crimean Federal University, EGOROVA SVETLANA N. ,   Crimean Federal University, ONISCHENKO KONSTANTIN N. ,   Crimean Federal University, USEINOVA ASIE N. ,   Crimean Federal University
Published: June 2024

Abstract. Introduction. The quantity of the patients with type II diabetes mellitus is constantly increases, according to the latest 1-st half-year data 2021 it makes 4.5 million people in Russian Federation. Wherein the spread of IItype diabetes mellitus in the majority of countries with developed economics is two times higher than registered. The purpose of the research is to survey the awareness and the informational needs of chemist’s workers consulting the type II diabetes mellitus people in the Crimean Republic. Material and methods. 105 pharmacists of the chemist’s network organizations and the private ones of the Crimean Republic located in Simferopol and resort area took part in the anonymous survey in June-October 2021. 63 pharmacists with the special secondary education and 42 with the higher special education participated in this research. Results and discussion. In the majority of cases patients to treat the type II diabetes mellitus buy medicines, at the same time 34% - over-the-counter drugs, 5%-by the recipe. Besides medicines people buy medical technical things (19%), medicinal raw materials (17%), biologically active additives (16%), care patient items (9%). Test strips are of a great demand (83.7%), insulin syringes (16.3%). In pharmacist’s opinion the majority of the customers (68.8%) use multicomponent medicines to treat the type II diabetes mellitus. The pharmacist survey found out that 95.2% of the patients asked buy the medicine prescribed by the doctors that demonstrates a highly effective pharmacotherapy, doctors trust and patient’s compliance. Conclusions. The pharmacist questionnaire in the Crimean Republic helped to reveal the sufficient knowledge level of the first - line pharmacists to consult the type II diabetes mellitus patients.
SINGLE-PHOTON EMISSION COMPUTED TOMOGRAPHY IN EXERCISE TESTS IN PAINLESS MYOCARDIAL ISCHEMIA
Authors:   Kazan Federal University, ABDRAHMANOVA ALSU I. , TSIBULKIN NICOLAY A. ,   Kazan State Medical Academy, AMIROV NAIL B. ,   Kazan State Medical University, SAYFULLINA GUZEL B. ,   Interregional Clinical Diagnostic Center, Kazan
Published: June 2024

Abstract. Introduction. In the diagnosis of silent myocardial ischemia, single-photon emission computed tomography is of great importance. One of the methods for detecting silent myocardial ischemia is the assessment of its perfusion. For this, single-photon emission computed tomography is considered to be a highly sensitive method. It is the "gold standard" in the diagnosis of transient myocardial ischemia due to both coronary and non-coronary causes. Aim. The aim of the study was to analyze the data of single-photon emission computed tomography at rest and after a stress test in patients with silent myocardial ischemia and the usual form of angina pectoris. Material and methods. 78 case histories of patients with silent and ordinary myocardial ischemia were analyzed. Bicycle ergometry was used as a stress test. The dynamics of perfusion, contractility and electrocardiographic picture were evaluated. Statistical analysis was carried out using parametric and nonparametric criteria. Results and discussion. Patients with silent myocardial ischemia are significantly less likely to undergo coronary stenting and coronary bypass grafting compared to the group with typical angina pectoris. The most common reason for stopping the exercise test in the group with silent myocardial ischemia is ST depression, which occurs 6 times more often than in patients with the usual form of angina. In the group with silent myocardial ischemia, a decrease in myocardial contractility is observed 20% more often, 2.5 times less often there are ventricular extrasystole, 3 times more often there is a hypertonic type of reaction to physical activity than in patients with the usual form of angina pectoris. Conclusion. Single photon emission computed tomography using stress tests reveals differences in patients with silent and ordinary forms of myocardial ischemia.
CASE REPORT ON SUCCESSFUL COLLABORATIVE THROMBOLYTIC THERAPY, MECHANICAL THROMBUS EXTRACTION, AND STENTING IN A PATIENT WITH ISCHEMIC STROKE IN THE TERRITORY OF THE RIGHT MIDDLE CEREBRAL ARTERY
Authors:   City Clinical Hospital No. 7, Kazan, VASKAEVA GULNAZ R. , VALEEA KADRIYA G. ,   City Clinical Hospital № 7, Kazan, MINGAZETDINOV MARAT A. ,   City Clinical Hospital № 7, Kazan, YUSUPOV RAMIL I. ,   City Clinical Hospital № 7, Kazan, DANILOVA TATIANA V. ,   Kazan State Medical University
Published: June 2024

Abstract. Introduction. As of today, acute cerebrovascular accident is still the most important medical and social challenge in the modern society, due to its high growth rates of morbidity, disability, and mortality. A highly proven method of ischemic stroke treatment is reperfusion therapy, including intravenous thrombolytic therapy and mechanical thrombus extraction. Thrombus extraction is a high–tech medical procedure aimed at removing blood clots, which is the most effective way to treat patients with ischemic stroke. Aim. To illustrate the efficiency of collaborative thrombolytic therapy, mechanical thrombus extraction, and stenting. Materials and Methods. The article presents a clinical case report on a patient with ischemic stroke in the territory of the right middle cerebral artery upon the successful collaborative thrombolytic therapy, mechanical thrombus extraction, and stenting. The patient’s neurological status was assessed, and neuroimaging was performed before and after thrombolytic therapy, mechanical thrombus extraction, and stenting; laboratory tests and instrumental investigations were carried out, and secondary prevention was prescribed. Results and Discussion. Due to the successful staged reperfusion therapy including intravenous thrombolytic therapy followed by mechanical thrombus extraction using a stent retriever, and stenting of the right internal carotid artery, the physicians managed to achieve the restoration of blood flow along the right middle cerebral artery with significant clinical regression of neurological deficit, which achievement demonstrated the effectiveness, safety, and expediency of using this treatment technique. Combining these methods is efficient for the treatment of patients with ischemic stroke caused by the major artery occlusions in the anterior parts of Willis circle. In centers of vascular medicine where there is no high-tech medical care, thrombolytic therapy is administered intravenously in one medical institution, and then the patient is transferred to another one where it is possible to perform mechanical thrombus extraction, or both reperfusion therapy techniques can be used within one medical institution. Conclusions. Collaboratively performing the above procedures illustrates their high efficiency and safety. Time elapsed from the disease onset to the treatment initiation is essential to successful recanalization.
Распространение вариантов вируса SARS-COV-2, вызывающих интерес (VOI) и находящихся под наблюдением (VUM), на основе количества их геномов, депонированных в базу данных GISAID за неделю с 1 по 7 июня 2024 г.
Authors: Дмитриева Людмила , Чумачкова Елена , Краснов Ярослав , Осина Наталья , Зимирова Анастасия , Иванова Александра , Карнаухов Игорь , Караваева Татьяна , Щербакова Светлана , Кутырев Владимир
Published: June 2024

В обзоре представлена информация по циркулирующим в настоящее время вариантам вируса SARS-COV-2 Omicron вызывающих интерес (VOI) и находящихся под наблюдением (VUM), геномные последовательности которых размещены в международной базе данных GISAID за неделю с 1 по 7 июня 2024 г.
Análise econômica dos gastos diretos com internações hospitalares por vítimas de trauma do Sistema Único de Saúde em um município de Minas Gerais, 2011-2021
Authors: Fófano Gisele , Gonçalves Anthony , Oliveira Raphael , Andrade Filipe , Oliveira Maria Augusta , Chaoubah Alfredo
Published: June 2024

Objetivo: Determinar o perfil epidemiológico de pacientes atendidos pelo Sistema Único de Saúde (SUS), em determinado município do interior de Minas Gerais, bem como os gastos financeiros e o repasse financeiro para os centros de atendimento de traumas. Material e métodos: Trata-se de um estudo ecológico, descritivo, realizado a partir da coleta de dados pelo SIH-SUS, no período de janeiro de 2011 a dezembro de 2021, em um município do interior de Minas Gerais. Resultados: Foi identificado um total de 14.138 pacientes, com maior acometimento de pessoas do sexo masculino, com idade entre 15 e 44 anos. Como causas mais frequentes, destacaram-se os traumatismos de quadril e coxa, seguidos de traumatismos de membros superiores (ombro, antebraço, braço, punho e mão) e cabeça. Como tempo médio de permanência hospitalar, houve 4.693 diárias entre 2011 e 2021 secundárias a complicações em enfermarias e unidade de terapia intensiva, elevando cerca de 2,37% os valores repassados pelo SUS no período estudado. Em resumo, a análise da incidência de traumas nas emergências de um município do interior de Minas Gerais revela uma preocupante tendência em que homens na faixa etária de 15 a 44 anos emergem como as principais vítimas. Esse padrão pode ser influenciado por fatores como ocupação, comportamentos de risco e mobilidade. Conclusão: A compreensão dessa demografia específica é crucial para direcionar estratégias de prevenção e resposta adequadas. A implementação de medidas educativas, segurança no trânsito e promoção da saúde mental pode contribuir para mitigar os impactos dos traumas nesse grupo demográfico, melhorando sua qualidade de vida e a saúde geral da comunidade.
Modelo SIG con uso de realidad aumentada (RA) para usuarios con discapacidad auditiva que acuden a servicios sanitarios
Authors: Montes López Diego Fernando , Montenegro-Marín Carlos Enrique , Gaona García Paulo Alonso
Published: June 2024

Se plantea un modelo y se implementa un aplicativo para dispositivos móviles, combinando tecnologías de sistemas de información geográfica (SIG) y realidad aumentada (RA), empoderando con información y una nueva herramienta tecnológica a los usuarios con discapacidad auditiva cuando accedan a los servicios de salud, mejorando sus experiencias al acercarse a los centros de salud. La realidad aumentada es usada como guía para sobreponer información de rutas hacia los centros de salud, y la realidad vista a través de la cámara del celular, así como desplegar información e indicaciones de los servicios de salud por medio de elementos multimedia, como videos en lengua de señas. Se hace un acercamiento a algunas tecnologías de RA, centrándose en la arquitectura de software conformada por: el framework de Xamarin Forms, el API de ArcGIS Runtime para .NET, el framework de RA de RACore y SQLite, desarrollados e implementados para la plataforma de Android.
WITHDRAWN: A Retrospective Study of Prevalence of Porcine Parvoviruses 6 in Guangxi, China and Its Co-Infection with Porcine Circovirus
Authors: Yu Ning , Yu Ziping , Chen Luer , Liu Yumeng , Feng Sheng , Zhuang Xinyu , Li Zhuoxin , Li Chenghui , Zhu Xiangyu , Zhang He , Wang Wei , Sun Wenchao , Jin Ningyi , Lu Huijin
Published: June 2024

The full text of this preprint has been withdrawn by the authors while they make corrections to the work. Therefore, the authors do not wish this work to be cited as a reference. Questions should be directed to the corresponding author.
Active avoidance recruits the anterior cingulate cortex regardless of social context in male and female rats.
Authors: Ruble Shannon , Kramer Cassandra , West Lexe , Payne Karissa , Ness Halle , Erickson Greg , Scott Alyssa , Diehl Maria
Published: June 2024

Actively avoiding danger is necessary for survival. Most research has focused on the behavioral and neurobiological processes when individuals avoid danger alone, under solitary conditions. Therefore, little is known about how social context affects active avoidance. Using a modified version of the platform-mediated avoidance task in rats, we investigated whether the presence of a social partner attenuates conditioned freezing and enhances avoidance learning compared to avoidance learned under solitary conditions. Rats spent a similar percentage of time avoiding during the tone under both conditions; however, rats trained under social conditions exhibited greater freezing during the tone as well as lower rates of darting and food seeking compared to solitary rats. Under solitary conditions, we observed higher levels of avoidance in females compared to males, which was not present in rats trained under social conditions. To gain greater mechanistic insight, we optogenetically inactivated glutamatergic projection neurons in the anterior cingulate cortex (ACC) following avoidance training. Photoinactivation of ACC neurons reduced expression of avoidance under social conditions both in the presence and absence of the partner. Under solitary conditions, photoinactivation of ACC delayed avoidance in males but blocked avoidance in females. Our findings suggest that avoidance is mediated by the ACC, regardless of social context, and may be dysfunctional in those suffering from trauma-related disorders. Furthermore, sex differences in prefrontal circuits mediating active avoidance warrant further investigation, given that females experience a higher risk of developing anxiety disorders.