HIV病毒-话题@MedSci

#HIV病毒#

45篇内容 | 2693人围观

关注话题

话题活跃用户

#插入话题

插入图片

最新最热

[GetTopicListResponse(id=2194584, encodeId=d8ff21945843d, content=<a href='/topic/show?id=e798524076' target=_blank style='color:#2F92EE;'>#Crispr技术#</a> <a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=科学家利用CRISPR技术成功清除已感染的HIV病毒, objectType=article, longId=817688, objectId=643681e68821, topicUrl=null, isHasObj=0, objectCover=https://img.medsci.cn/Random/Hiv_1.jpg, objectUrl=/article/show_article.do?id=643681e68821, replyNumber=0, likeNumber=60, createdTime=2024-03-21, rootId=0, userName=梅斯管理员, userId=cade5395722, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=上海, moduleDTOList=[ModuleDTO(moduleId=643681e68821, moduleTitle=科学家利用CRISPR技术成功清除已感染的HIV病毒, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=643681e68821)], followStatus=false, userIsMember=false, type=null, lengthMark=0), GetTopicListResponse(id=1412647, encodeId=5cc4141264ed4, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=Cell：解析HIV病毒全新画像，推动艾滋病疫苗研发, objectType=article, longId=299970, objectId=8fa92999e075, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=8fa92999e075, replyNumber=0, likeNumber=89, createdTime=2022-03-04, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=8fa92999e075, moduleTitle=Cell：解析HIV病毒全新画像，推动艾滋病疫苗研发, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=8fa92999e075)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412646, encodeId=02141412646ec, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=Science：HIV病毒超强变异，为艾滋病进程开倍速, objectType=article, longId=299745, objectId=3f5e299e45a4, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=3f5e299e45a4, replyNumber=0, likeNumber=100, createdTime=2022-03-01, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=3f5e299e45a4, moduleTitle=Science：HIV病毒超强变异，为艾滋病进程开倍速, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=3f5e299e45a4)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412645, encodeId=562f141264514, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=诺奖得主、HIV病毒发现者吕克·蒙塔尼去世，曾强烈反对新冠疫苗, objectType=article, longId=295554, objectId=75712955546d, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=75712955546d, replyNumber=0, likeNumber=75, createdTime=2022-02-15, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=75712955546d, moduleTitle=诺奖得主、HIV病毒发现者吕克·蒙塔尼去世，曾强烈反对新冠疫苗, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=75712955546d)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412644, encodeId=db7e141264435, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=Science：被忽视了几十年，HIV病毒衣壳不仅只有保护作用，更在病毒感染和复制中不可或缺, objectType=article, longId=202411, objectId=df5b2024119f, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=df5b2024119f, replyNumber=0, likeNumber=90, createdTime=2020-10-24, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=df5b2024119f, moduleTitle=Science：被忽视了几十年，HIV病毒衣壳不仅只有保护作用，更在病毒感染和复制中不可或缺, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=df5b2024119f)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412643, encodeId=ecab1412643de, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=EMBO Rep :喝茶也能抗艾滋？复旦大学发现绿茶提取物能抑制HIV病毒复制, objectType=article, longId=201124, objectId=5afb20112415, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=5afb20112415, replyNumber=0, likeNumber=104, createdTime=2020-09-25, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=5afb20112415, moduleTitle=EMBO Rep :喝茶也能抗艾滋？复旦大学发现绿茶提取物能抑制HIV病毒复制, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=5afb20112415)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412642, encodeId=85371412642eb, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=Nat Med ：新型双CAR-T细胞疗法，快速清除体内HIV病毒，持久保护, objectType=article, longId=200191, objectId=d92e20019135, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=d92e20019135, replyNumber=0, likeNumber=85, createdTime=2020-09-05, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=d92e20019135, moduleTitle=Nat Med ：新型双CAR-T细胞疗法，快速清除体内HIV病毒，持久保护, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=d92e20019135)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412641, encodeId=95201412641df, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=Lancet HIV：治愈艾滋病新希望——“伦敦病人”HIV病毒检测阴性已持续30个月, objectType=article, longId=189847, objectId=2b7c18984e3d, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=2b7c18984e3d, replyNumber=0, likeNumber=85, createdTime=2020-03-13, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=2b7c18984e3d, moduleTitle=Lancet HIV：治愈艾滋病新希望——“伦敦病人”HIV病毒检测阴性已持续30个月, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=2b7c18984e3d)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412640, encodeId=97181412640f1, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=Nature：发现HIV病毒躲避免疫系统杀伤的新方式, objectType=article, longId=164430, objectId=aaac164430f2, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=aaac164430f2, replyNumber=0, likeNumber=79, createdTime=2019-04-18, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=aaac164430f2, moduleTitle=Nature：发现HIV病毒躲避免疫系统杀伤的新方式, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=aaac164430f2)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412639, encodeId=54b81412639ae, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=HIV病毒抑制剂PRO 140的研究, objectType=article, longId=141557, objectId=4ebd14155e96, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=4ebd14155e96, replyNumber=0, likeNumber=66, createdTime=2018-06-26, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=4ebd14155e96, moduleTitle=HIV病毒抑制剂PRO 140的研究, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=4ebd14155e96)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412638, encodeId=d5341412638b8, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=IMMUNITY：研究人员找到中和HIV病毒的捷径，有望生成全新的艾滋病疫苗, objectType=article, longId=124843, objectId=6749124843e0, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=6749124843e0, replyNumber=0, likeNumber=75, createdTime=2017-12-29, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=6749124843e0, moduleTitle=IMMUNITY：研究人员找到中和HIV病毒的捷径，有望生成全新的艾滋病疫苗, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=6749124843e0)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412637, encodeId=bd9d141263e0f, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=Ann Oncol：法国科学家证实癌症药可以扫荡HIV的藏身之地，清空HIV病毒, objectType=article, longId=122002, objectId=4f22122002cd, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=4f22122002cd, replyNumber=0, likeNumber=90, createdTime=2017-12-03, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=4f22122002cd, moduleTitle=Ann Oncol：法国科学家证实癌症药可以扫荡HIV的藏身之地，清空HIV病毒, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=4f22122002cd)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412636, encodeId=5994141263606, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=Cell Reports：重磅！科学家首次证实HIV病毒“藏身之处”，将会消除体内艾滋病毒, objectType=article, longId=116914, objectId=92ee11691483, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=92ee11691483, replyNumber=0, likeNumber=0, createdTime=2017-10-21, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=92ee11691483, moduleTitle=Cell Reports：重磅！科学家首次证实HIV病毒“藏身之处”，将会消除体内艾滋病毒, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=92ee11691483)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412635, encodeId=2722141263569, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=Sci Rep:HIV新突破只需一滴血，手机就可以检测HIV病毒, objectType=article, longId=115065, objectId=3c8b115065e3, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=3c8b115065e3, replyNumber=0, likeNumber=0, createdTime=2017-10-03, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=3c8b115065e3, moduleTitle=Sci Rep:HIV新突破只需一滴血，手机就可以检测HIV病毒, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=3c8b115065e3)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412634, encodeId=d1be14126341e, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=【盘点】10种欧洲最“前卫”的抗HIV病毒疗法, objectType=article, longId=113731, objectId=e628113e31e7, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=e628113e31e7, replyNumber=0, likeNumber=95, createdTime=2017-09-24, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=e628113e31e7, moduleTitle=【盘点】10种欧洲最“前卫”的抗HIV病毒疗法, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=e628113e31e7)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412633, encodeId=ab4a14126330a, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=Science重磅：能广谱中和HIV病毒的抗体真的要来了！, objectType=article, longId=113562, objectId=64b6113562d9, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=64b6113562d9, replyNumber=0, likeNumber=73, createdTime=2017-09-22, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=64b6113562d9, moduleTitle=Science重磅：能广谱中和HIV病毒的抗体真的要来了！, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=64b6113562d9)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412632, encodeId=7aa114126327c, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=PNAS：艾滋病患者有救了，全新疗法彻底解决HIV病毒耐药问题！, objectType=article, longId=110821, objectId=22521108216e, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=22521108216e, replyNumber=0, likeNumber=73, createdTime=2017-08-26, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=22521108216e, moduleTitle=PNAS：艾滋病患者有救了，全新疗法彻底解决HIV病毒耐药问题！, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=22521108216e)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412631, encodeId=88d6141263139, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=eLife:与HIV病毒传播有关的蛋白质实际上对生育有好处！, objectType=article, longId=108430, objectId=1d3610843061, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=1d3610843061, replyNumber=0, likeNumber=80, createdTime=2017-08-12, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=1d3610843061, moduleTitle=eLife:与HIV病毒传播有关的蛋白质实际上对生育有好处！, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=1d3610843061)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412630, encodeId=ef771412630dc, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=柳叶刀：HIV病毒携带者人群中的烟草使用, objectType=article, longId=104805, objectId=472410480534, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=472410480534, replyNumber=0, likeNumber=78, createdTime=2017-07-08, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=472410480534, moduleTitle=柳叶刀：HIV病毒携带者人群中的烟草使用, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=472410480534)], followStatus=false, userIsMember=false, type=1, lengthMark=0), GetTopicListResponse(id=1412629, encodeId=b960141262958, content=<a href='/topic/show?id=32ec89220b' target=_blank style='color:#2F92EE;'>#HIV病毒#</a>, objectTitle=Nature:美学者发现抗体治疗让猕猴持久控制类HIV病毒, objectType=article, longId=102107, objectId=0b2110210e2e, topicUrl=null, isHasObj=0, objectCover=null, objectUrl=/article/show_article.do?id=0b2110210e2e, replyNumber=0, likeNumber=73, createdTime=2017-06-17, rootId=0, userName=tigerlr99, userId=fa102876871, projectId=1, avatar=, status=1, hasArticle=1, attachment=null, ipAttribution=, moduleDTOList=[ModuleDTO(moduleId=0b2110210e2e, moduleTitle=Nature:美学者发现抗体治疗让猕猴持久控制类HIV病毒, moduleType=article, hrefUrl=https://www.medsci.cn/article/show_article.do?id=0b2110210e2e)], followStatus=false, userIsMember=false, type=1, lengthMark=0)] 梅斯话题小助手

HIV病毒

2020-05-29

梅斯管理员 (审核中...)

前往app查看评论内容

#Crispr技术# #HIV病毒#

科学家利用CRISPR技术成功清除已感染的HIV病毒

2024-03-21发表于上海

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

Cell：解析HIV病毒全新画像，推动艾滋病疫苗研发

2022-03-04

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

Science：HIV病毒超强变异，为艾滋病进程开倍速

2022-03-01

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

诺奖得主、HIV病毒发现者吕克·蒙塔尼去世，曾强烈反对新冠疫苗

2022-02-15

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

Science：被忽视了几十年，HIV病毒衣壳不仅只有保护作用，更在病毒感染和复制中不可或缺

2020-10-24

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

EMBO Rep :喝茶也能抗艾滋？复旦大学发现绿茶提取物能抑制HIV病毒复制

2020-09-25

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

Nat Med ：新型双CAR-T细胞疗法，快速清除体内HIV病毒，持久保护

2020-09-05

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

Lancet HIV：治愈艾滋病新希望——“伦敦病人”HIV病毒检测阴性已持续30个月

2020-03-13

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

Nature：发现HIV病毒躲避免疫系统杀伤的新方式

2019-04-18

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

HIV病毒抑制剂PRO 140的研究

2018-06-26

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

IMMUNITY：研究人员找到中和HIV病毒的捷径，有望生成全新的艾滋病疫苗

2017-12-29

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

Ann Oncol：法国科学家证实癌症药可以扫荡HIV的藏身之地，清空HIV病毒

2017-12-03

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

Cell Reports：重磅！科学家首次证实HIV病毒“藏身之处”，将会消除体内艾滋病毒

2017-10-21

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

Sci Rep:HIV新突破只需一滴血，手机就可以检测HIV病毒

2017-10-03

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

【盘点】10种欧洲最“前卫”的抗HIV病毒疗法

2017-09-24

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

Science重磅：能广谱中和HIV病毒的抗体真的要来了！

2017-09-22

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

PNAS：艾滋病患者有救了，全新疗法彻底解决HIV病毒耐药问题！

2017-08-26

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

eLife:与HIV病毒传播有关的蛋白质实际上对生育有好处！

2017-08-12

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

柳叶刀：HIV病毒携带者人群中的烟草使用

2017-07-08

tigerlr99 (审核中...)

前往app查看评论内容

#HIV病毒#

Nature:美学者发现抗体治疗让猕猴持久控制类HIV病毒

2017-06-17

科室
- - 订阅+
  - 更多科室
工具
服务