Archivos de Neurociencias最新文献

筛选
英文 中文
The tree of Neuroscience 神经科学之树
Archivos de Neurociencias Pub Date : 2021-07-09 DOI: 10.31157/ARCHNEUROSCIENCESMEX.V26I2.308
J. Ramírez-Bermúdez
{"title":"The tree of Neuroscience","authors":"J. Ramírez-Bermúdez","doi":"10.31157/ARCHNEUROSCIENCESMEX.V26I2.308","DOIUrl":"https://doi.org/10.31157/ARCHNEUROSCIENCESMEX.V26I2.308","url":null,"abstract":"The renewal of Archivos de Neurociencias is an opportunity to recover the academic and scientific tradition of the Journal, and the opportunity to innovate that tradition by establishing a dialogue with contemporary trends in the scientific world and in our society.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"80 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84118244","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
Arteria subcallosa: identificación previa al tratamiento. A propósito de un caso y revisión de la literatura 胼胝体下动脉:治疗前识别。关于一个案例和文献综述
Archivos de Neurociencias Pub Date : 2021-06-22 DOI: 10.31157/archneurosciencesmex.v26i2.254
Marla Gallo-Guerrero, Diego A. Joya-Ruvalcaba, G. Badallo-Rivas
{"title":"Arteria subcallosa: identificación previa al tratamiento. A propósito de un caso y revisión de la literatura","authors":"Marla Gallo-Guerrero, Diego A. Joya-Ruvalcaba, G. Badallo-Rivas","doi":"10.31157/archneurosciencesmex.v26i2.254","DOIUrl":"https://doi.org/10.31157/archneurosciencesmex.v26i2.254","url":null,"abstract":"INTRODUCCIÓN \u0000La arteria subcallosa es la arteria perforante más larga de la arteria comunicante anterior (AcoA). A pesar de su gran importancia y de estar presente en el 50-79% de los ejemplares, está poco descrito en la literatura. Es fundamental su identificación previa a procedimientos endovasculares o quirúrgicos, ya que la lesión de esta arteria producirá un infarto bilateral de la región subcallosa y provocará un grave deterioro cognitivo y alteración de la memoria anterógrada, conocido como “síndrome amnésico subcalloso”.Presentamos el caso de un paciente con una malformación arteriovenosa peri callosa con identificación de la arteria subcallosa previa al tratamiento como única aferente. A menudo es difícil identificar esta arteria en las imágenes y su visualización previa podría prevenir secuelas importantes en los pacientes. Concluimos que la arteria subcallosa es la arteria perforante más importante de la arteria comunicante, por lo que su identificación previa al tratamiento es fundamental.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84018543","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
Breve recorrido a través de la historia de la cirugía de columna vertebral: desde la mitología egipcia hasta la cirugía de mínima invasión 脊柱手术的历史:从埃及神话到微创手术
Archivos de Neurociencias Pub Date : 2021-06-22 DOI: 10.31157/archneurosciencesmex.v26i2.273
César Adán Almendárez Sánchez
{"title":"Breve recorrido a través de la historia de la cirugía de columna vertebral: desde la mitología egipcia hasta la cirugía de mínima invasión","authors":"César Adán Almendárez Sánchez","doi":"10.31157/archneurosciencesmex.v26i2.273","DOIUrl":"https://doi.org/10.31157/archneurosciencesmex.v26i2.273","url":null,"abstract":"El conocimiento de las contribuciones a la cirugía de columna realizadas a través del tiempo, nos proporciona el contexto del entendimiento de las técnicas quirúrgicas actuales y del éxito que ha tenido esta área con el paso de los años. En este trabajo el autor realizó una búsquea de los hitos históricos que marcaron el rumbo de la cirugía de columna, lo cual representó un arduo trabajo por grandes figuras de la medicina, partiendo desde la mitología Egipcia, pasando por el periodo Griego, Arábico y el Renacimiento, hasta la Edad Moderna y el desarrollo de la cirugía de mínima invasión.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78677637","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
Efectos de la imaginería motora tras accidente cerebrovascular 中风后运动影像的影响
Archivos de Neurociencias Pub Date : 2021-06-22 DOI: 10.31157/archneurosciencesmex.v26i2.279
Paula Martínez-Misa, Y. González-González, A. Calvete, I. D. Cuña-Carrera
{"title":"Efectos de la imaginería motora tras accidente cerebrovascular","authors":"Paula Martínez-Misa, Y. González-González, A. Calvete, I. D. Cuña-Carrera","doi":"10.31157/archneurosciencesmex.v26i2.279","DOIUrl":"https://doi.org/10.31157/archneurosciencesmex.v26i2.279","url":null,"abstract":"Introducción: Tras un accidente cerebrovascular, aproximadamente el 80% de los pacientes sufren alteraciones motoras de distinta índole. La rehabilitación de estas lesiones supone un reto terapéutico para el cual existen distintas terapias, algunas de ellas emergentes, entre las que destaca la imaginería motora. Este tratamiento presenta potenciales beneficios en aras de  una rehabilitación precoz de los déficits motores adquiridos. Debido a que la imaginería motora es una terapia reciente, el objetivo de este trabajo es recabar la literatura científica más actual acerca de la imaginería motora en pacientes que han sufrido un accidente cerebrovascular. \u0000Métodos: Se ha llevado a cabo una búsqueda bibliográfica de acuerdo con las normas PRISMA en las bases de datos PubMed, Cinhal, Cochrane, Medline, Scopus, PEDro, Web of Science y SPORTDiscus con las palabras clave “Stroke”, “Imagery” y “Physical Therapy”. \u0000Resultados: Se seleccionaron finalmente 15 artículos para la revisión, con resultados similares en cuanto a los beneficios que la imaginería motora aporta a la rehabilitación en pacientes tras accidente cerebrovascular, analizando los efectos de este tratamiento tanto en miembros superiores como inferiores o en la marcha. \u0000Conclusiones: La imaginería motora presenta beneficios significativos en la rehabilitación de pacientes tras accidente cerebrovascular, ya sea sola o en combinación con otras terapias convencionales. \u0000  \u0000Palabras clave: Fisioterapia, Rehabilitación,Imaginería Motora, Neurología, Accidente cerebrovascular.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75440614","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
Breve recorrido a través de la historia de la cirugía de columna vertebral: desde la mitología egipcia hasta la cirugía de mínima invasión 脊柱手术的历史:从埃及神话到微创手术
Archivos de Neurociencias Pub Date : 2021-06-22 DOI: 10.31157/an.v26i2.273
César Adán Almendárez Sánchez
{"title":"Breve recorrido a través de la historia de la cirugía de columna vertebral: desde la mitología egipcia hasta la cirugía de mínima invasión","authors":"César Adán Almendárez Sánchez","doi":"10.31157/an.v26i2.273","DOIUrl":"https://doi.org/10.31157/an.v26i2.273","url":null,"abstract":"El conocimiento de las contribuciones a la cirugía de columna realizadas a través del tiempo, nos proporciona el contexto del entendimiento de las técnicas quirúrgicas actuales y del éxito que ha tenido esta área con el paso de los años. En este trabajo el autor realizó una búsquea de los hitos históricos que marcaron el rumbo de la cirugía de columna, lo cual representó un arduo trabajo por grandes figuras de la medicina, partiendo desde la mitología Egipcia, pasando por el periodo Griego, Arábico y el Renacimiento, hasta la Edad Moderna y el desarrollo de la cirugía de mínima invasión.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90910606","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
Sleep quality, REM sleep behavior disorder and daytime sleepiness in adults with and without Parkinson's 帕金森氏症患者和非帕金森氏症患者的睡眠质量、快速眼动睡眠行为障碍和日间嗜睡
Archivos de Neurociencias Pub Date : 2021-06-02 DOI: 10.31157/an.v26i2.271
Andrea Díaz Pacheco, J. Moo Estrella
{"title":"Sleep quality, REM sleep behavior disorder and daytime sleepiness in adults with and without Parkinson's","authors":"Andrea Díaz Pacheco, J. Moo Estrella","doi":"10.31157/an.v26i2.271","DOIUrl":"https://doi.org/10.31157/an.v26i2.271","url":null,"abstract":"In Parkinson's disease (PD), poor sleep quality and sleep disorders are central part of the non-motor symptoms. The aim was to compare sleep quality (SQ), REM sleep behavior disorder (RBD) and excessive daytime sleepiness (EDS) among adults with and without Parkinson's disease (PD). A second objective was to know the relationship of SQ and RBD with EDS in patients with PD. Method. sixty adults (38 % women,  mean age 66.7 ± 8.11 years), 50 % with PD diagnosis and 50 % healthy controls, Instruments: Epworth Sleepiness Scale, Sleep Quality Pittsburgh Index and REM Behavioral Disorder Sleep Questionnaire, which was designed for this study. Results. Differences were found in SQ (PD = 9.90 ±4.47 vs Control group = 7.23 ±4.71, t = 2.25, p = .028), and the percentage of cases with symptoms of RBD (PD = 30%, control group = 6.7%, ji2 = 5.455, p = .020). No differences were found in EDS (PD = 7.43 ± 5.46 vs Control group = 6.50 ± 5.28, t = .673, p = .504). According to the linear regression analysis, the increase in EDS was not associated with SQ, EDS was only associated with RBD. Conclusion, the PD group presents a poor sleep quality and a higher prevalence of RBD symptoms. EDS did not differ between adults with and without PD. However, RBD was associated with an increase in EDS in the PD group.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91368127","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
Sleep quality, REM sleep behavior disorder and daytime sleepiness in adults with and without Parkinson's 帕金森氏症患者和非帕金森氏症患者的睡眠质量、快速眼动睡眠行为障碍和日间嗜睡
Archivos de Neurociencias Pub Date : 2021-06-02 DOI: 10.31157/ARCHNEUROSCIENCESMEX.V26I2.271
Andrea Díaz Pacheco, J. M. Estrella
{"title":"Sleep quality, REM sleep behavior disorder and daytime sleepiness in adults with and without Parkinson's","authors":"Andrea Díaz Pacheco, J. M. Estrella","doi":"10.31157/ARCHNEUROSCIENCESMEX.V26I2.271","DOIUrl":"https://doi.org/10.31157/ARCHNEUROSCIENCESMEX.V26I2.271","url":null,"abstract":"In Parkinson's disease (PD), poor sleep quality and sleep disorders are central part of the non-motor symptoms. The aim was to compare sleep quality (SQ), REM sleep behavior disorder (RBD) and excessive daytime sleepiness (EDS) among adults with and without Parkinson's disease (PD). A second objective was to know the relationship of SQ and RBD with EDS in patients with PD. Method. sixty adults (38 % women,  mean age 66.7 ± 8.11 years), 50 % with PD diagnosis and 50 % healthy controls, Instruments: Epworth Sleepiness Scale, Sleep Quality Pittsburgh Index and REM Behavioral Disorder Sleep Questionnaire, which was designed for this study. Results. Differences were found in SQ (PD = 9.90 ±4.47 vs Control group = 7.23 ±4.71, t = 2.25, p = .028), and the percentage of cases with symptoms of RBD (PD = 30%, control group = 6.7%, ji2 = 5.455, p = .020). No differences were found in EDS (PD = 7.43 ± 5.46 vs Control group = 6.50 ± 5.28, t = .673, p = .504). According to the linear regression analysis, the increase in EDS was not associated with SQ, EDS was only associated with RBD. Conclusion, the PD group presents a poor sleep quality and a higher prevalence of RBD symptoms. EDS did not differ between adults with and without PD. However, RBD was associated with an increase in EDS in the PD group.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"163 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86236735","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: 1
Factors associated with cognitive performance in residents of long-term care facilities in Northeast Mexico. 墨西哥东北部长期护理机构居民认知表现的相关因素。
Archivos de Neurociencias Pub Date : 2021-06-01 DOI: 10.31157/ARCHNEUROSCIENCESMEX.V26I2.230
Fernando Coindreau-Frías, L. E. Fernández-Garza, Loubette Botello-González, David E. Rodríguez-Fuentes, Silvia A. Barrera-Barrera, H. Barrera-Saldana
{"title":"Factors associated with cognitive performance in residents of long-term care facilities in Northeast Mexico.","authors":"Fernando Coindreau-Frías, L. E. Fernández-Garza, Loubette Botello-González, David E. Rodríguez-Fuentes, Silvia A. Barrera-Barrera, H. Barrera-Saldana","doi":"10.31157/ARCHNEUROSCIENCESMEX.V26I2.230","DOIUrl":"https://doi.org/10.31157/ARCHNEUROSCIENCESMEX.V26I2.230","url":null,"abstract":"Objective: To investigate factors associated with cognitive impairment (CI) in institutionalized Mexican older adults. \u0000Material and methods: Cross-sectional study of residents of three long-term care facilities in the metropolitan area of Monterrey, Mexico. A medical history, Mini-Mental State Examination (MMSE), Barthel index, geriatric depression scale, and a nutritional screening were performed. CI was defined as MMSE ≤24. \u0000Results: Of 280 octogenarian residents (72.1% females) 61.1 % had a MMSE ≤24. Older age (OR=1.047), functional dependence (OR=10.309), malnutrition (OR=2.202), urinary incontinence (OR=2.588), and history of fracture (OR=1.764) were directly associated to CI. While higher education level (OR=0.583) and the use of antihypertensives (OR=0.521), antihistamines (OR=0.322), antiprostatic hypertrophy (OR=0.219), and lipid-lowering drugs (OR=0.575) were inversely associated. \u0000Conclusions: The evaluation of cognitive performance and its associated factors is essential for institutionalized patients in order to implement a management program aimed at reducing the progression of CI and its possible complications.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73641664","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: 1
Glutamine-mediated nitric oxide synthase inhibition might explain the ‘arginine paradox’ 谷氨酰胺介导的一氧化氮合酶抑制可能解释“精氨酸悖论”
Archivos de Neurociencias Pub Date : 2021-05-17 DOI: 10.31157/ARCHNEUROSCIENCESMEX.V26I2.277
I. Pérez-Neri, C. Ríos-Castañeda
{"title":"Glutamine-mediated nitric oxide synthase inhibition might explain the ‘arginine paradox’","authors":"I. Pérez-Neri, C. Ríos-Castañeda","doi":"10.31157/ARCHNEUROSCIENCESMEX.V26I2.277","DOIUrl":"https://doi.org/10.31157/ARCHNEUROSCIENCESMEX.V26I2.277","url":null,"abstract":"• glutamine • nitric oxide • arginine paradox From several studies, it has been described that nitric oxide synthase(NOS) activity increases if extracellular arginine levels are elevated 1, 2 despite of the high intracellular amino acid level (0.1 2 mM in endothelial cells 3 ), which would maintain the enzyme saturated 4. This ‘arginine paradox’ may be explained by several mechanisms including amino acid transport, translational control and the presence of endogenous NOS inhibitors 5, 6.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"16 1","pages":"7-9"},"PeriodicalIF":0.0,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73983456","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: 2
Germinoma con diseminación difusa subependimaria cuadriventricular, cerebelar y tallo cerebral rostral 胚芽瘤伴弥漫性四室室垂直系下、小脑和吻侧脑干扩散
Archivos de Neurociencias Pub Date : 2021-05-14 DOI: 10.31157/an.v26i2.265
Enrique Villarreal García, Javier Contreras Guerrero, Edgar Fragoza Sánchez, Alba Monserrat Quiñones González, Eduardo Díaz Juárez, José Raymundo Medina Romero
{"title":"Germinoma con diseminación difusa subependimaria cuadriventricular, cerebelar y tallo cerebral rostral","authors":"Enrique Villarreal García, Javier Contreras Guerrero, Edgar Fragoza Sánchez, Alba Monserrat Quiñones González, Eduardo Díaz Juárez, José Raymundo Medina Romero","doi":"10.31157/an.v26i2.265","DOIUrl":"https://doi.org/10.31157/an.v26i2.265","url":null,"abstract":"Introducción. Los germinomas del sistema nervioso central tienen predilección por la línea media, el diagnóstico diferencial es amplio y la inmunohistoquímica determina el diagnóstico definitivo. \u0000Caso Clínico. Adolescente de 19 años, inicia con visión doble al fijar la mirada o seguir objetos, cefalea frontal bilateral, sin irradiación, punzante. Se agregó disminución de agudeza visual con parálisis del III nervio craneal a la supraversión conjugada de la mirada, Babinski ausente, temblor de intención, marcha atáxica al TANDEM y mareo al realizarlo. Al ingreso con diagnóstico clínico de síndrome cerebeloso vermiano; diagnóstico imagenológico, probable linfoma cerebral primario e hidrocefalia no comunicante realizando colocación de VDVP punto precoronal derecho y toma de muestra de líquido cefalorraquídeo; marcadores tumorales, negativos; manejo farmacológico, ceftriaxona y albendazol; biopsia incisional por esterotaxia parietal izquierda, transoperatorio, atipia linfoide; diagnóstico histopatológico, lesión neoplásica; diagnóstico inmunohistoquímico, germinoma. \u0000Conclusión. Se presentó el primer el caso descrito de germinoma de línea media con extensión difusa subependimaria cuadriventricular, cerebelar y tallo cerebral rostral.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83276472","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信