在免疫学研究中，科学家常常借助“荧光报告小鼠”来追踪特定细胞的命运。比如，当某个基因被激活时，细胞就会表达一种绿色或红色的荧光蛋白（如EYFP、RFP），从而在显微镜或流式细胞仪下“亮起来”。这类工具对于研究T细胞分化、免疫记忆形成等过程至关重要。

Abstract: Authorization is a key component of cloud security. However, the differences in access control mechanisms in heterogeneous cloud environments bring many challenges to cloud users, such as ...

Perma-Pipe International is a specialized pipe manufacturer, operating primarily in the Middle East and North America. See ...

The outgoing chairman has been on the board for more than nine years. Read more at straitstimes.com. Read more at ...

空中交通管制员将陆续重返岗位，为即将到来的感恩节假期缓解出行压力；数十万被无薪休假的联邦雇员也能领到补发的薪水，重回工作岗位；此前受阻的H-1B LCA、PERM、E-Verify等移民申请业务也将全面恢复正常。

Dan Skelton's handicap debutant finished ahead of two subsequent winners when making a successful start over hurdles in ...

The transcription factor HEB synergizes with TCR signaling to upregulate Id3, which is required for the maturation of fetal IL-17-producing γδ T cells.

Rights lawyers say 18-year-old street musician Diana Loginova is caught in a jail "carousel," with prosecutors filing a ...

The South African Social Security Agency (SASSA) pays out millions of rands in social grants to its recipients every month.

We are Amnesty International UK. We are ordinary people from across the world standing up for humanity and human rights.