{"title":"A Full-wave Solution of Deep Sources in the Lossy Human Head to Accurate Electroencephalography and Magnetoencephalography.","authors":"Sattar Samadi, Bijan Zakeri, Reza Khanbabaie","doi":"10.32598/bcn.2022.3821.1","DOIUrl":"10.32598/bcn.2022.3821.1","url":null,"abstract":"<p><strong>Introduction: </strong>Currents in the brain flow inside neurons and across their boundaries into the extracellular medium, create electric and magnetic fields. These fields, which contain suitable information on brain activity, can be measured by electroencephalography (EEG), magnetoencephalography (MEG), and direct neural imaging.</p><p><strong>Methods: </strong>In this paper, we employed an electromagnetic model of the neuron activity and human head to derive electric and magnetic fields (brain waves) using a full-wave approach (ie. without any approximation). Currently, the brain waves are only derived using the quasi-static approximation (QSA) of Maxwell's equations in electromagnetic theory.</p><p><strong>Results: </strong>As a result, source localization in brain imaging will produce some errors. So far, the error rate of the QSA on the output results of electric and magnetic fields has not been investigated. This issue has become more noticeable due to the increased sensitivity of modern electroencephalography (EEG) and magnetoencephalography (MEG) devices. This work introduces issues that QSA encounters in this problem and reveals the necessity of a full-wave solution. Then, a full-wave solution of the problem in closed-form format is presented for the first time. This solution is done in two scenarios: the source (active neurons) is in the center of a sphere, and when the source is out of the center but deeply inside the sphere. The first scenario is simpler, but the second one is much more complicated and is solved using a partial-wave series expression.</p><p><strong>Conclusion: </strong>One of the significant achievements of this model is improving the interpretation of EEG and MEG measurements, resulting in more accurate source localization.</p>","PeriodicalId":35832,"journal":{"name":"Nishinihon Journal of Dermatology","volume":"61 1","pages":"247-260"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11367220/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90728042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Angelica Monarrez, Angela Frederick, Danielle X Morales, Lourdes E Echegoyen, Amy Wagler
{"title":"Hispanic/Latinx STEM Majors Applying to Graduate School: The Role of Family, Peers, and Undergraduate Research Programs in Facilitating Community Cultural Wealth.","authors":"Angelica Monarrez, Angela Frederick, Danielle X Morales, Lourdes E Echegoyen, Amy Wagler","doi":"10.1080/15348431.2022.2122973","DOIUrl":"10.1080/15348431.2022.2122973","url":null,"abstract":"<p><p>This paper examines the critical transition from undergraduate to graduate biomedical education and focuses on Hispanic/Latinx students who participated in a biomedical undergraduate research program at a Hispanic-Serving Institution located on the US-Mexico border. We use the community cultural wealth (CCW) framework (Yosso, 2005) to analyze 13 qualitative interviews about students' experiences applying to graduate school in biomedical fields and how different program activities allowed students to navigate the graduate school application process. Our findings suggest that different programmatic activities (research experiences, research mentorship, workshops, family involvement, and advising) facilitated students' graduate school application process by enhancing different types of cultural capital: aspirational, familial, social, navigational, and resistant.</p>","PeriodicalId":35832,"journal":{"name":"Nishinihon Journal of Dermatology","volume":"51 1","pages":"205-219"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10795465/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90665662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yoko Tsukamoto, E. Sato, Kanae Nakamura, Hiroki Shimizu, S. Imafuku
{"title":"Gas Gangrene Associated with Eosinophilic Granulomatosis with Polyangiitis (EGPA)","authors":"Yoko Tsukamoto, E. Sato, Kanae Nakamura, Hiroki Shimizu, S. Imafuku","doi":"10.2336/nishinihonhifu.84.447","DOIUrl":"https://doi.org/10.2336/nishinihonhifu.84.447","url":null,"abstract":"","PeriodicalId":35832,"journal":{"name":"Nishinihon Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49425463","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}
{"title":"Analysis of Dynamics in Beef-Specific IgE Levels and Clinical Prognosis in 13 Patients with α-Gal Syndrome","authors":"Ayaka Ueno, Y. Chinuki, E. Morita","doi":"10.2336/nishinihonhifu.84.407","DOIUrl":"https://doi.org/10.2336/nishinihonhifu.84.407","url":null,"abstract":"","PeriodicalId":35832,"journal":{"name":"Nishinihon Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44249641","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}
Hanako Watanabe, Y. Koike, Hitomi Morisaki, S. Kuwatsuka, F. Ogawa, H. Murota
{"title":"A Case Report of Contact Dermatitis Syndrome Caused by Hemorrhoidal Ointment","authors":"Hanako Watanabe, Y. Koike, Hitomi Morisaki, S. Kuwatsuka, F. Ogawa, H. Murota","doi":"10.2336/nishinihonhifu.84.402","DOIUrl":"https://doi.org/10.2336/nishinihonhifu.84.402","url":null,"abstract":"","PeriodicalId":35832,"journal":{"name":"Nishinihon Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45992039","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}
{"title":"A Case of Infantile Hemangioma of an Extremely-Low-Birth-Weight Infant Successfully Treated with Propranolol","authors":"Megumi Murakami, Norika Akashi, Rikako Isobe, Maiko Shimomura, Yuriko Hanai, T. Mitsuma","doi":"10.2336/nishinihonhifu.84.415","DOIUrl":"https://doi.org/10.2336/nishinihonhifu.84.415","url":null,"abstract":"","PeriodicalId":35832,"journal":{"name":"Nishinihon Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43232153","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}
{"title":"Dr. Brian Kim","authors":"B. Kim","doi":"10.2336/nishinihonhifu.84.455","DOIUrl":"https://doi.org/10.2336/nishinihonhifu.84.455","url":null,"abstract":"","PeriodicalId":35832,"journal":{"name":"Nishinihon Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43460804","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}
{"title":"Metastatic Skin Tumor with Epidermotropic Metastasis During Wound Healing After Skin Biopsy","authors":"Fumika Minakawa, Takenobu Yamamoto, Y. Aoyama","doi":"10.2336/nishinihonhifu.84.438","DOIUrl":"https://doi.org/10.2336/nishinihonhifu.84.438","url":null,"abstract":"","PeriodicalId":35832,"journal":{"name":"Nishinihon Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44832807","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}
{"title":"A Case of Basal Cell Nevus Syndrome with a Known Mutation in the PTCH1 Gene","authors":"Takafumi Hisamoto, N. Asano, Yutaka Shimomura","doi":"10.2336/nishinihonhifu.84.425","DOIUrl":"https://doi.org/10.2336/nishinihonhifu.84.425","url":null,"abstract":"","PeriodicalId":35832,"journal":{"name":"Nishinihon Journal of Dermatology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48675155","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}