The Arlo Wired Floodlight has an IP65 weather-resistant housing and is available in a black or white finish. It measures 6.6 ...

Ring Outdoor Camera Pro Battery review: a wireless and weatherproof smart security camera - A feature-packed wireless outdoor security camera with colour night vision and a clever bird’s eye view func ...

Dog saved from overheated car in Buenos Aires ...

Get the best compact, single-serve blender for under $50 at Walmart's pre-Presidents' Day sale. This is an ideal solution for ...

OM Systems’ new OM-3 camera combines popular features of the PEN-F and OM-1 II in a smaller, lighter form factor than the ...

The OM-3 camera combines popular features of the PEN-F and OM-1 II in a smaller, lighter form factor than the OM-1 II but ...

The OM System OM-3 is the company's latest Micro Four Thirds mirrorless camera. Its use of the same 20MP Four Thirds Stacked ...

The first Ring doorbell to carry the Pro name and use a rechargeable battery instead of wired power – Doorbell Battery pro ...

The OM System OM-3 is made in Vietnam and is available in black or silver. It is priced at £1699 / $1999 body-only in the UK and US, respectively, or £1999 with the M.Zuiko Digital ED 12-45mm F4.0 PRO ...

在细胞工程领域，分离经过基因编辑的细胞一直是研究热点，目前已开发出多种方法。如使用表面标签和耐药盒来富集含有转基因整合的细胞，但对细胞进行多种药物处理或连续进行阳性选择会对细胞活力、性能和产量产生负面影响；靶向必需位点虽可富集转基因整合细胞，但同时编辑多个必需基因的后果尚未明确；还有研究利用在一个位点引入的选择标记来富集另一个位点的整合，但缺乏直接多标记选择的富集方法，难以获得更纯的细胞群体。