{"title":"Simulation of Combined Stresses and Stress Concentration Factor Effects on a Femur Cortical Bones","authors":"A. Velez-Cruz","doi":"10.47460/minerva.v3i8.60","DOIUrl":"https://doi.org/10.47460/minerva.v3i8.60","url":null,"abstract":"The purposes of this article were to obtain mechanical properties of the dry femur cortical bone samples through a tensile load and stress concentration factor approach and to provide simulations to predict experimental behaviors based on manipulations of certain properties and parameters of the biomaterial. Since bone samples have characteristics and geometries, the development of a mathematical model was necessary to describe the combination of stresses interacting in the bone when a tension load is applied. The samples have average diameters and lengths of 0.5 and 2 inches respectively and were tested using a 10 kN Universal Tensile Machine to determine mechanical properties such as yield and ultimate stress, young module, and fracture, among others. Several simulations were conducted to evaluate failure criteria like “Von Mises”, “Tresca” and “Tsai-Wu”. Finally, was concluded that 83% of the data obtained from the 22 samples observed in the “Stress-Strain” charts showed a directly proportional relationship.","PeriodicalId":18592,"journal":{"name":"Minerva endocrinologica","volume":"37 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73040610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Illiberal Reactions to Higher Education","authors":"Evan Schofer, Julia C. Lerch, John W. Meyer","doi":"10.1007/s11024-022-09472-x","DOIUrl":"https://doi.org/10.1007/s11024-022-09472-x","url":null,"abstract":"","PeriodicalId":18592,"journal":{"name":"Minerva endocrinologica","volume":"1 1","pages":"509 - 534"},"PeriodicalIF":4.1,"publicationDate":"2022-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89654598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stress-Inducing and Anxiety-Ridden: A Practice-Based Approach to the Construction of Status-Bestowing Evaluations in Research Funding","authors":"Peter Edlund, I. Lammi","doi":"10.1007/s11024-022-09466-9","DOIUrl":"https://doi.org/10.1007/s11024-022-09466-9","url":null,"abstract":"","PeriodicalId":18592,"journal":{"name":"Minerva endocrinologica","volume":"27 1","pages":"397 - 418"},"PeriodicalIF":4.1,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78308051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Retraction Stigma and its Communication via Retraction Notices","authors":"S. Xu, G. Hu","doi":"10.1007/s11024-022-09465-w","DOIUrl":"https://doi.org/10.1007/s11024-022-09465-w","url":null,"abstract":"","PeriodicalId":18592,"journal":{"name":"Minerva endocrinologica","volume":"7 1","pages":"349 - 374"},"PeriodicalIF":4.1,"publicationDate":"2022-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78542936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Katherine E. Smith, Justyna Bandola-Gill, Nasar Meer, Ellen Stewart and Richard Watermeyer, The Impact Agenda: Controversies, Consequences and Challenges","authors":"T. Franssen","doi":"10.1007/s11024-022-09464-x","DOIUrl":"https://doi.org/10.1007/s11024-022-09464-x","url":null,"abstract":"","PeriodicalId":18592,"journal":{"name":"Minerva endocrinologica","volume":"366 1","pages":"325 - 328"},"PeriodicalIF":4.1,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85474920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Omar Flor, Veronica Toaza, Marlene Barragan, David Lopez
{"title":"Students' perception of the quality of virtual education in times of COVID-19 pandemic","authors":"Omar Flor, Veronica Toaza, Marlene Barragan, David Lopez","doi":"10.47460/minerva.v3i7.51","DOIUrl":"https://doi.org/10.47460/minerva.v3i7.51","url":null,"abstract":"This article presents a study on the perception of students pursuing technical careers, on aspects related to the quality of virtual education during times of covid-19 pandemic. The data analyzed were obtained from surveys of 75 students of various educational levels in aspects such as quality in teaching, accessibility to virtual resources, teacher training, continuity of the curriculum, equal conditions, and the influence of policy on the quality of education in general. It was concluded that the educational process in its virtual modality is acceptable from the point of view of intrinsic advantages such as flexibility and yet there is also a change of focus in the educational institution that pays attention to providing a better virtual educational process diverting attention from equally important processes such as the communication of internal and external actions to the institution. \u0000Keywords: Virtual education, challenges, pandemic, COVID-19.","PeriodicalId":18592,"journal":{"name":"Minerva endocrinologica","volume":"68 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87424015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}