面向世界科技前沿,面向国家重大需求,面向国民经济主战场,率先实现科学技术跨越发展,率先建成国家创新人才高地,率先建成国家高水平科技智库,率先建设国际一流科研机构。

——中国科学院办院方针

首页 >  > 

彩票app-首页

時間:2022-08-15 來源:本站 點擊:258次
【字体:

China's Beibu Gulf Port sees rise in cargo throughput******

NANNING, Oct. 21 (Xinhua) -- Beibu Gulf Port in south China's Guangxi Zhuang Autonomous Region saw its cargo throughput rise 10.29 percent year on year to over 200 million tonnes in the first nine months of 2021.

Over 4.18 million twenty-foot equivalent unit containers were handled at the port during the same period, up 19.11 percent year on year, according to the Beibu Gulf Port Group.

Beibu Gulf Port currently has more than 270 productive berths. Over 50 shipping routes link the gulf with more than 300 ports around the world.

Guangxi's Beibu Gulf serves as an important transit point in the New International Land-Sea Trade Corridor, a trade and logistics passage jointly built by western Chinese provincial regions and Singapore. Enditem

84%感染者出现后遗症 最新研究:新冠病毒还能杀死脑细胞******

随着新冠病毒继续在全球各国肆虐,感染新冠病毒后的后遗症,已经引起了科学家们的关注。所谓新冠后遗症,即在首次感染新冠病毒后可能出现的一系列新的、复发或持续的健康问题。

其中,根据美国疾控中心(CDC)的官方信息,感染新冠病毒的长期影响之一是出现“脑雾”,即思维和注意力难以集中。事实上,新冠病毒对大脑的影响并不仅仅是出现脑雾。此前的一项研究发现,高达84%的新冠感染者出现了神经症状、味觉或嗅觉丧失、癫痫发作、中风、意识丧失及意识混乱等“新冠后遗症”。但令科学家们迟迟未能找到这一问题背后的答案,这些新冠后遗症究竟为何出现?

据外媒10月24日报道,一项发表于《自然神经科学》上的最新研究或许解开了这一谜题,因为新冠病毒除了攻击肺部外,还能杀死脑细胞。

▲高达84%的新冠感染者出现了“新冠后遗症”【后遗症表现】

近四分之一感染者康复后

出现认知障碍,大脑无法正常工作

《美国医学会杂志网络公开(JAMA Network Open)》10月22日发布的一项新研究表明,新冠感染者在感染的几个月后出现了记忆问题,甚至“无法思考”。研究人员对纽约西奈山医疗系统740名新冠肺炎住院患者进行了研究发现,近四分之一的人在感染的几个月后大脑无法保留信息和集中注意力。

“在这项研究中,我们发现患者在感染新冠病毒几个月后出现认知障碍的频率相对较高。在住院患者中,执行功能、处理速度、分类流畅性、记忆编码和回忆方面的障碍最为明显。”纽约西奈山伊坎医学院的杰奎琳·贝克尔解释道。

该研究称,曾因新冠肺炎住院的人最有可能出现认知障碍迹象,但在医院急诊科接受治疗的一些感染者也出现了脑功能下降。这些患者通常在感染新冠病毒约7、8个月后,表现出认知障碍的迹象,包括记忆、回忆和存储新记忆、做出判断及计划当面的问题。

精神病学教授海伦·拉夫雷茨基博士表示,有些病人“大脑甚至完全无法正常工作”,无法思考、记忆受损;当他们开车出行的时候,会感到困惑,不知道自己究竟是如何到达目的地的。

▲新冠病毒会破坏位于大脑周围的内皮细胞,导致血液无法流动。【最新研究】

新冠病毒杀死内皮细胞

导致“幽灵血管”出现

尽管在新冠疫情后不久,科学家们便逐渐注意到了新冠感染者在康复后出现了各种大脑及神经问题,但始终未能找到症结。而现在,一项发表于《自然神经科学》上的最新研究表明可能揭开了这一谜题。

据报道,这项由德国、法国和西班牙科学家联合进行的研究表明,新冠病毒除了攻击肺部外,还能杀死一种被称为内皮细胞的脑细胞。内皮细胞位于大脑周围,负责保护小脑,促进血液流动。研究人员指出,内皮细胞受损可能会导致大脑血管损伤,损害认知功能。他们表示,这一发现或许可以解释,为何高达84%的新冠感染者都出现了神经症状、味觉或嗅觉丧失、癫痫发作、中风、意识丧失及意识混乱等“新冠后遗症”。

研究人员通过扫描新冠肺炎死者尸体的大脑发现了一种极为细小的“幽灵血管”,这是一种让血液无法流动的死细胞,也是认知障碍的标志,并可能产生众多风险,比如微中风等等。

【专家解释】

这一问题或许是可逆的

但长期影响仍然无法确定

这一令人震惊的发现,不可避免地引发了一个问题:感染新冠病毒的人是否将不可避免地长期受到脑部问题的困扰?

该研究合著者、法国国家健康与医学研究院(INSERM)的文森特·布雷奥表示,这种大脑的损伤可能是可逆的。他解释道:“我们在仓鼠身上看到了这种现象显然是可逆的,所以它在人类身上也或许是可逆的。”

其次,研究表明,这种情况可能发生在病情严重的感染者身上。但对于症状较轻微的感染者来说,暂时还没有确定的结论。“为了找到答案,我们必须连续一周每10分钟采集一次血液样本,以检测血液中是否存在病毒。不幸的是,这种方法并不可行。”他表示。

报道称,从长远来看,感染新冠病毒对大脑的损伤是否持续存在,并影响受损大脑的老化状态等众多问题仍未得到确切解答,科学家们还需要时间和进一步的研究才能找到答案。

红星新闻记者 徐缓


来源:红星新闻

编辑:王蜀周秦

【彩票app-首页👉👉十年信誉大平台,点击进入👉👉 打造国内最专业最具信赖的彩票平台,为您提供彩票app-首页用户登录全网最精准计划软件,APP下载登陆,强大的竞彩网上推荐!!】

CBA Roundup: Chen Ying******

ZHUJI, China, Nov. 12 (Xinhua) -- Guard Chen Ying-Chun finished with 33 points and 12 assists, leading the Guangzhou Loong Lions to edge the Jilin Northeast Tigers 107-104 for their third straight win in the 2021-22 season Chinese Basketball Association (CBA) on Friday.。

Jilin had a 7-0 run at the beginning of the game, while Nathaniel Mason scored 10 points to help Guangzhou narrow the margin at 21-25 in the first quarter.。

Chen got 11 points and four assists in the second quarter, helping Guangzhou turn the tables 50-48.。

Jilin shooters Cui Jinming and Jiang Weize had five three-pointers in the fourth quarter to help the team establish a double-digit lead. However, Chen came out again with continuous downtown shooting to lead Guangzhou to victory in the final minutes.。

Also on Friday, the Guangdong Southern Tigers smashed the Jiangsu Dragons 108-73. Guard Xu Jie had 15 points, seven rebounds and seven assists from the Guangdong bench.。

The Beijing Ducks defeated the Qingdao Eagles 78-73 after a typical Beijing-style game. Center Fan Ziming got 21 points and 11 rebounds for Beijing.。

With Hu Jinqiu's 36 points and Sun Minghui's double-double of 22 points and 12 assists, the Zhejiang Lions moved past Xinjiang Flying Tigers 109-100. Enditem。

WADA report confirms UKAD allows British Cycling to test own riders in 2011******

LONDON, Oct. 19 (Xinhua) -- United Kingdom Anti-Doping (UKAD) has allowed British Cycling to analyze samples from athletes in private, using a non-WADA accredited laboratory, a World Anti-Doping Agency (WADA) report confirmed on Tuesday.

After allegations from media regarding the issue in 2011, WADA launched an investigation in March 2021. The investigation then confirmed that in February 2011, as part of a study into the potential contamination of supplements, British Cycling collected samples from elite riders and screened these samples for the androgen and anabolic steroid, nandrolone.

"Contrary to the rules laid down by the World Anti-Doping Code and the relevant International Standard, the samples were collected by British Cycling staff rather than doping control officers, analyzed by a non-WADA-accredited laboratory, and provided by the athletes on the basis that UKAD would never know the results," said the report.

The investigation also found out at least one UKAD employee was aware of the study and that the samples could be collected and analyzed at a non-WADA-accredited laboratory.

"To this day, UKAD has no record of ever receiving the analysis results and emails that would have showed UKAD's real-time knowledge of key events," revealed the report.

Following the publication of the report, a UKAD spokesperson said "the report makes no recommendations for UKAD to follow, and notes that all samples related to their investigation were negative".

"WADA's report focuses on matters from 2011 and on the involvement of one individual, who is no longer employed by UKAD. We acknowledge that these matters would not take place today," added the spokesperson.

British Cycling also released a statement regarding the WADA's report by saying that the member of British Cycling staff who coordinated the 2011 study with UK Anti-Doping had left the organisation several years ago.

"WADA's finding that this was supported by UKAD is in line with our own understanding of events and attaches no fault to British Cycling or to the riders involved in the study. British Cycling only conducted the testing having sought and received the express approval of UKAD's Director of Legal," it read. Endtiem

防疫工作落实不到位,拉萨市卫健委主任等3人被免

1.焦点访谈丨智慧交通驶入快车道——新基建 新生活

2.太突然:芯片股彻底火了!广发、博时、招商、银华、汇丰晋信、财通最新研判!

3.8月17日起南航将恢复广州—伦敦航线

4.俄军称控制顿涅茨克市北部要地 乌确认破坏一公路桥

© 1996 - 彩票app-首页 版权所有 xxxxx

地址:

电话:(总机)

编辑部邮箱:

彩神iv官网(LTD)有限责任公司-神德正彩票-购彩大厅_首页-好彩网_官网首页_好彩网-一分快三彩票_官网-彩神ll用户登录_首页-凤凰彩票app-凤凰彩票app下载-彩神vi主页 - 彩神vi官网-彩神2-官方网站-极速快3彩票-安全购彩网-丰和彩票-[官网,开户,投注app,平台]_首页-彩票app-官网-掌上彩票官网_掌上彩票APP下载-中财彩票App下载-号百彩票App下载_官方版APP-神彩争霸app官网_首页
易腹泻?饮食别贪凉!教你预防急性腹泻| 包括苹果在内,手机厂商不希望你“好好关机”| 要造千枚导弹反制大陆越"中线"?岛内几个动作须警惕| “死守阵地,决不能后退一寸”——记抗美援朝老兵黄忠茂| 女子与男友吵架 深夜往楼下扔菜刀被控制| 南京高温致一牛群在运输途中中暑,消防员紧急“施救”| 神舟十号载人飞船返回舱交接仪式在韶山举行| “中国一瞬”文化体验周在巴西利亚拉开帷幕| 耶路撒冷老城发生恐怖袭击 至少8人受伤3人伤重| 长期饮料当水喝引发尿毒症?专家辟谣!| 北京昨日本土0新增 新增境外输入16+6| 王子文谈8岁儿子,大方分享喜欢吴永恩的原因| 日防卫省确认到中国海军舰艇编队进入太平洋 四舰编队中仅拍摄到两舰照片| 15日起,三亚凤凰国际机场国内客运航班有序恢复| 国防大学举办首期国防动员系统文职人员培训班| 中国版LV大崩溃!1米布卖6.8万,400亿买了40个“雷”| 眯一鸠样!输光底裤的曼联,应该炒掉滕哈赫吗?| 最高450元现在卖18!缺芯潮下,这款车规芯片怎么了?|