WSEAS transactions on biology and biomedicine最新文献

Assessing Maximal Oxygen Uptake: Influence of Leg Length in the Harvard Step Test and Queen’s College Step Test 评估最大摄氧量：哈佛台阶测试和皇后学院台阶测试中腿长的影响

WSEAS transactions on biology and biomedicine Pub Date : 2024-05-23 DOI: 10.37394/23208.2024.21.23

Jin-Seop Kim, Jong-Seon Oh, Seong-Gil Kim

{"title":"Assessing Maximal Oxygen Uptake: Influence of Leg Length in the Harvard Step Test and Queen’s College Step Test","authors":"Jin-Seop Kim, Jong-Seon Oh, Seong-Gil Kim","doi":"10.37394/23208.2024.21.23","DOIUrl":"https://doi.org/10.37394/23208.2024.21.23","url":null,"abstract":"Maximal oxygen uptake (VO2max) indicates cardiovascular endurance in evaluating overall health and physical performance. The CPX method is accurate, but accessibility is lower due to issues related to cost and complexity. For this reason, the Harvard Step Test and Queen's College Step Test are drawing interest. Step-based tests are influenced by factors such as leg length, requiring an investigation into the correlation between leg length and VO₂max estimation using these methods. This study investigates the influence of leg length on predicted VO₂max (pVO2max) determined through both the Harvard Step Test and the Queen's College Step Test. The assessment of VO2max was carried out using CPX on a treadmill. Measurements were obtained through the Harvard Step Test and Queen's College Step Test on steps. The participants were informed about the experimental procedure, and the experiment was conducted 24 hours later. The experiment maintained controlled conditions, and each measurement was conducted as a single trial, repeated three times for accuracy. The study found a significant positive correlation (r = 0.595, P < 0.05) between CPX VO2max and lower leg length. Lower leg length was found to significantly influence exercise intensity as determined by both the Harvard Step Test pVO2max (explaining 35.4% of the variance, P < 0.05) and the Queen's College Step Test pVO2max (explaining 30% of the variance, P < 0.05). It is recommended to adjust the step height to the individual's body size when estimating exercise difficulty or pVO2max using step-based exercises.","PeriodicalId":481436,"journal":{"name":"WSEAS transactions on biology and biomedicine","volume":"44 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141107341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interface Problems-Fluid Structure Interaction: Description, Application and Review 界面问题--流体结构相互作用：描述、应用与回顾

WSEAS transactions on biology and biomedicine Pub Date : 2024-05-23 DOI: 10.37394/23208.2024.21.22

Vivek Kumar Srivastav, Srinivasarao Thota, Late M. Kumar, A. R. Anand

引用次数: 0

A Dynamic Reaction-restore-type Transmission-rate Model for COVID-19 COVID-19 的动态反应-恢复型传输速率模型

WSEAS transactions on biology and biomedicine Pub Date : 2024-03-21 DOI: 10.37394/23208.2024.21.12

F. Córdova-Lepe, J. P. Gutiérrez-Jara

引用次数: 0

Transformed Regression Type Estimators in the Presence of Missing Observations: Case Studies on COVID-19 Incidence in Chiang Mai, Thailand 存在缺失观测值时的变换回归类型估计器：泰国清迈 COVID-19 发病率案例研究

WSEAS transactions on biology and biomedicine Pub Date : 2024-03-21 DOI: 10.37394/23208.2024.21.13

Natthapat Thongsak, Nuanpan Lawson

{"title":"Transformed Regression Type Estimators in the Presence of Missing Observations: Case Studies on COVID-19 Incidence in Chiang Mai, Thailand","authors":"Natthapat Thongsak, Nuanpan Lawson","doi":"10.37394/23208.2024.21.13","DOIUrl":"https://doi.org/10.37394/23208.2024.21.13","url":null,"abstract":"The transformation technique can be used to modify the shape of the variable to improve the performance of the population mean estimator. In the presence of missing data, before estimating the population mean using standard statistical methods, missing data has to be taken care of. In this study, we focus on new transformed regression type estimators when missing data are present in the study variable under the uniform nonresponse mechanism and assume that the population mean of the auxiliary variable is unavailable which usually occurs in practice. An auxiliary variable can assist by increasing the efficacy of estimating the population mean. The bias and mean square error are investigated up to the first order degree approximation using the Taylor series. A simulation and case studies on COVID-19 incidence in Chiang Mai, Thailand are used to assess the performance of the new transformed estimators. The estimated number of COVID-19 patients who have pneumonia and require high-flow oxygen and the estimated daily confirmed cases of COVID-19 in Chiang Mai from the best proposed estimator are around 17 cases and 118 cases, respectively.","PeriodicalId":481436,"journal":{"name":"WSEAS transactions on biology and biomedicine","volume":"64 1‐2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140223126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MTHFR C677T Gene Polymorphism and Association with Disorders MTHFR C677T 基因多态性及其与疾病的关系

WSEAS transactions on biology and biomedicine Pub Date : 2024-03-14 DOI: 10.37394/23208.2024.21.11

Aleena Parveen Shaikh, Kristine Makharadze, M. Nagervadze, M. Koridze, R. Khukhunaishvili, Salome Glonti

引用次数: 0

An Analysis of Some Models of Prey-predator Interaction 猎物与捕食者互动模型分析

WSEAS transactions on biology and biomedicine Pub Date : 2024-03-11 DOI: 10.37394/23208.2024.21.10

Thierry Bi Boua Lagui, M. Dosso, Gossouhon Sitionon

引用次数: 0

The Effect of Molar Weight on Airborne Infectiousness of Coronavirus 摩尔重量对冠状病毒空气传播传染性的影响

WSEAS transactions on biology and biomedicine Pub Date : 2024-03-01 DOI: 10.37394/23208.2024.21.9

N. Khajohnsaksumeth

引用次数: 0

Improvement of Laboratory Diagnosis for Detection and Identification of Bovine Clostridiosis 牛梭菌病检测鉴定实验室诊断的改进

WSEAS transactions on biology and biomedicine Pub Date : 2023-11-01 DOI: 10.37394/23208.2023.20.31

Natalia A. Bezborodova, Evgenia N. Shilova, Veronika V. Kozhukhovskaya, Vladlena D. Zubareva, Olga V. Sokolova, Nikolai A. Martynov

{"title":"Improvement of Laboratory Diagnosis for Detection and Identification of Bovine Clostridiosis","authors":"Natalia A. Bezborodova, Evgenia N. Shilova, Veronika V. Kozhukhovskaya, Vladlena D. Zubareva, Olga V. Sokolova, Nikolai A. Martynov","doi":"10.37394/23208.2023.20.31","DOIUrl":"https://doi.org/10.37394/23208.2023.20.31","url":null,"abstract":"Objective: Clostridiosis is a toxic infectious disease; the pathogenicity factor of causative agents is the secreted toxins. A characteristic feature of clostridiosis pathogens is their polytropism. They affect both humans and agricultural, domestic, and wild animals. Our research aimed to monitor Clostridium perfringens and Clostridium difficile spread among agricultural organizations of the Ural region. Materials and Methods: 137 biological samples were obtained from cattle with symptoms of clostridial infection. For PCR species and toxinotype identification commercial kits and previously described protocols were used. Results verification was conducted using MALDI-TOF MS. Results: Out of 137 samples of selected material Clostridium was detected in 40.6% of samples: Cl. difficile in 35.8%, Cl. perfringens in 25.3%, Cl. difficile+Cl. perfringens in 16.4%. Cl. difficile and Cl. perfringens were found in 30.5% of fecal samples, in pathological material from dead calves and cows – 8.7%, in milk samples – 1.4%. Conclusion: Laboratory methods made it possible to verify the diagnosis: infectious anaerobic enterotoxemia of calves in one case, necrotic enteritis in 3 animals, and intestinal toxic infection caused by Cl. perfringens type A in 2 cows and 5 calves. The diagnostics of toxinotypes of Cl. perfringens have made it possible to conduct toxin-specific vaccination against clostridial infection in farms.","PeriodicalId":481436,"journal":{"name":"WSEAS transactions on biology and biomedicine","volume":"64 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135272389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Computational Study of a Prebiotic Synthesis of D-Riboflavin (Vitamin B2) 益生元合成d -核黄素(维生素B2)的计算研究

WSEAS transactions on biology and biomedicine Pub Date : 2023-11-01 DOI: 10.37394/23208.2023.20.30

Nigel Aylward

引用次数: 0

Individual Dynamic Capabilities Influential Factors in Blockchain Technology Innovation from Hospital Settings 个体动态能力对医院区块链技术创新的影响因素

WSEAS transactions on biology and biomedicine Pub Date : 2023-10-19 DOI: 10.37394/23208.2023.20.29

Antonio Pesqueira, Maria José Sousa, Rúben Pereira

{"title":"Individual Dynamic Capabilities Influential Factors in Blockchain Technology Innovation from Hospital Settings","authors":"Antonio Pesqueira, Maria José Sousa, Rúben Pereira","doi":"10.37394/23208.2023.20.29","DOIUrl":"https://doi.org/10.37394/23208.2023.20.29","url":null,"abstract":"The healthcare sector, characterized by its intricate network of stakeholders and rigorous regulatory demands, presents distinct challenges for the integration of Blockchain Technology (BT). Recent focus has shifted towards harnessing Individual Dynamic Capabilities (IDC) to secure a competitive edge. This approach aims to cultivate novel organizational competencies that generate value, ultimately benefiting all stakeholders in the healthcare system during the adoption of emerging technologies. This study delves into the significance of IDC in the seamless integration of BT within hospital infrastructures. The aim is to evaluate whether IDC is instrumental in the triumphant execution of BT initiatives in these settings, propelling innovation, safeguarding data authenticity, and cultivating trust among the involved parties. A systematic literature review (SLR) served as the foundational methodology to address the research objectives. The SLR involved a comprehensive search of databases to identify relevant literature, followed by an in-depth evaluation of the articles that were found. Through this process, the researchers were able to identify and assess the value of IDC in BT initiatives, as well as identify any potential risks associated with its use. Additionally, insights were gleaned regarding the impact of IDC, extrapolated from theoretical frameworks, and contextualized within the realm of hospital BT management. The findings revealed existing synergies between certain IDC and BT solutions, conferring both strategic and operational superiority by aligning BT with intricate demands. The research further underscored the transformative potential of BT across various healthcare facets, ranging from patient documentation to financial transactions. This research can pave the way for subsequent investigations into the interplay between IDC and BT.","PeriodicalId":481436,"journal":{"name":"WSEAS transactions on biology and biomedicine","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135779275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0