一 | 1月14日：根据爱迪生研究中心和NPR的最新报告PhoneArena，21%的美国成年人现在拥有智能扬声器。 Breakthrough new research could significantly increase supply of organs for people with rarer blood types waiting for a transplant, reported The Guardian.,A team of scientists from the University of Cambridge have successfully altered the blood type of three donor kidneys. By flushing blood infused with a special enzyme through a human kidney the scientists removed the blood type markers lining the blood vessels of the organ.,The procedure required using a device that is connected with a donor’s kidney to pass oxygenated blood through it - a normothermic perfusion machine. As a result, the organ was converted to type O, considered the universal donor.,Blood Group Compatible,As the blood type of a donor must be compatible with the recipient’s, the new development could increase the supply of kidneys available for transplant.,A kidney from someone with blood type A cannot be transplanted to someone with blood type B, or visa versa. In such a case, the receiving body’s immune system would reject the new organ, interpreting the different blood type as foreign.,So changing the blood type to the universal O would mean the donor organ could be used for people with any blood type.,“Our confidence was really boosted after we applied the enzyme to a piece of human kidney tissue and saw very quickly that the antigens were removed. After this, we knew that the process is feasible, and we just had to scale up the project to apply the enzyme to full-size human kidneys,” Serena MacMillan, a PhD student at the University of Cambridge, said.,Scientists involved in the research, funded by charity Kidney Research UK and due to be published in the British Journal of Surgery, clarified that the outcome might have particular implications for minority ethnic groups.,Science & TechGood News for ABs: Scientists Can Now Change People's Blood Type21 February, 16:34 GMT,Some blood groups such as O Rh positive and B Rh positive are more prevalent among black, Asian and minority ethnic communities. To complicate matters further, some rare blood types are only found within the black, Asian and minority ethnic communities,This typically places them at a disadvantage, as they struggle to find a match. With low donation rates from these populations, stressed the researchers, sometimes such patients wait for as long as over a year for a compatible donor. They cited figures from 2020-21 showing that just over 9% of total organ donations in the UK came from black and minority ethnic donors. On the other hand, black and minority ethnic patients make up 33% of the kidney transplant waiting list.,“It’s very exciting to think about how this could potentially impact so many lives,” added Serena MacMillan.,The “potentially gamechanging” research was applauded by Dr Aisling McMahon, the executive director of research at Kidney Research UK.,The scientists will now test the reintroduction of other blood types and observe how the novel approach in clinical settings.。这意味着5300万人拥有自己的智能扬声器，比去年增加了1400万。大多数用户现在都有多个智能扬声器。2017年12月，38%的用户拥有两台或更多设备。2018年12月，这一数字为52%。2018年，家庭中的智能扬声器数量比去年增长了78%，从6670万台增至1.18亿台。
二 | 尽管智能扬声器的数量已经很大，但设备普及率仍然很低，这意味着制造商有继续增长的空间。亚马逊Echo智能音箱低端型号价格低至25美元（相当于169元人民币），已成为一种经济受欢迎的礼物。在过去的节日期间，8%的美国人收到了新的智能扬声器作为礼物。随着美国人收到节日礼物并在社交媒体上分享，越来越多的人知道这种产品的存在。
三 | 2016年1月，美国62%的受访者听说了智能音箱，2018年12月这一数字上升至77%。
四 | _谷歌家庭智能扬声器通常由扬声器和虚拟个人助理组成，如Alexa、谷歌助理、Siri或Cortana。
五 | 它们可以用于打开或关闭智能设备、播放音乐、收听最新新闻、获取最新的运动成绩/股票价格、发送短信、打电话、获取天气、呼叫Ultimate或Lyft等。每个助手都可以处理许多任务。29%的人说他们一天使用几次扬声器，24%的人说他们几乎每天都使用这个设备。只有16%的人说他们的智能扬声器在家里是灰色的。尽管亚马逊率先推出了Echo产品，但谷歌的homepod智能扬声器仍然有电力供应，而苹果的homepod售价349美元（2799美元），是一款高端产品。
Current article:http://59gdmiu.xiadiaosengchengcun.shop/8wsiy/20260826/622.html
Published on:05:32:36