紫外线

"We had previously shown that ultraviolet light has an effect on mood that tanners value," said Mandeep Kaur of the Wake Forest University Baptist Medical Center."Now, in this small study, we've shown that some tanners actually experience withdrawal symptoms when the 'feel-good' chemicals are blocked."

据美国&生活科学网&3月28日报道，美国伟基森林大学浸信医学中心的曼迪普·考尔说，&我们以前就知道紫外线对于晒室内日光浴的人的情绪有一定影响&，这个小型研究发现，当让人&感觉良好&的化学物质被阻挡后，一些美黑者实际上会出现一些不舒服的感觉。

Noggin induces the nerve tube formation. It binds and inactivates members of the transforming growth factor-beta superfamily signaling proteins, such as bone morphogenetic protein-4 (BMP4). Proximal symphalangism (SYM1) and multiple synostoses syndrome (SYNS1) are related to noggin mutations.

Noggin能使紫外线人工腹侧化的爪蟾胚胎重新恢复背-腹的身体轴；在神经系统中诱导神经管的形成；减弱包括骨形态发生蛋白在内的转化生长因子信号蛋白的活性，从而控制骨的生长；调控生殖系统的发育。

UV rays and gamma rays are other examples of cosmic rays that can originate from extraterrestrial objects like stars and supernovas.

其他宇宙射线的例子还有紫外线和伽马射线，他们源自于地球外的物体如太阳和超新星。

Block off UVA/UVB stably, and avoid skin from being suntanned, sunburned and aged

稳定持久阻挡紫外线UVA/UVB，避免肌肤晒黑、晒伤及老化。

Actually, commercial sunscreens work in much the same way, converting UV radiation into heat.

实际上，市场上的太阳滤镜基本上就是以这种方式工作，把紫外线转化成热。

Some sunscreens break down quickly, especially the ones that give you UVA protection.

有些防晒霜分解迅速，特别是那些给你紫外线的保护。

Turns out that a 2008 study by Italian scientists found that UV filters in sunscreens causes coral bleaching.

意大利科学家在2008年的研究中发现防晒霜中的紫外线过滤剂导致了珊瑚礁褪色。

The use of sunscreens is aimed to minimize the damage of ultraviolet to skin, so as to slow down the process of skin photoaging.

防晒剂使用的目的是将紫外线辐射对皮肤的损害减少到最小，从而减缓皮肤光老化的过程。

People wear sunscreen to prevent damage from sunrays but unfortunately they may be causing more harm than good.

涂抹防晒霜本来是为了保护皮肤防止紫外线的，但带来的弊端可能远远大于益处。

Hats, sunglasses and clothing offer protection from harmful sunrays, but that can depend.

帽子、太阳镜和衣服能保护人体免受有害的紫外线照射，但这也要视情况而定。

KATHERINA. What is your sir, that you send for me?

凯瑟丽娜：夫君，您叫我出来有什么事？

This is the webpage of Centre for Bacterial Diversity and Identification, The University of Queensland.

这是昆士兰大学细菌多样性和鉴定中心的网页。