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七月最亮眼科技照大盘点

环境资讯 - 星期六, 08/12/2017 - 01:40
木星红斑 7月,木星迷们又听到了令人振奋的消息。美国宇航局(NASA)的“朱诺号”探测器离木星又近了一步,并在7月10日,当其近距离飞过一块木星表面的大红斑时,抓拍到了这张照片。图片来源:NASA 冰山崩裂 7月,一块巨大的冰山脱离了南极拉森C冰架。尽管人们已经预见到这次冰体崩解,但脱离的冰山有万亿吨之巨还是引发世界各国媒体争相报道。由于目前南极正笼罩在冬季的黑暗之中,NASA便利用热成像监...
分类: 环境生态网

全国首个智能海洋气象预警系统投用

环境资讯 - 星期六, 08/12/2017 - 01:17
本报讯 (记者杨明清 通讯员夏丽萍)日前,全国首个智能海洋气象预警系统在山东威海市荣成石岛正式投入使用。该系统由智能气象传输系统、智能气象接收机组成,覆盖范围约3000公里。 智能海洋气象预警系统应用了最新、最优化的软件算法,实现了射频信道全数字化。具有自动升级功能的智能气象接收机设有GPS定位系统和海区图,采用图形化的气象信息标注方式,实时接收岸台语音和数据信息,包括风向、风速、能见度、潮汐、...
分类: 环境生态网

石墨烯:助太阳能电池“遍地开花”

环境资讯 - 星期六, 08/12/2017 - 01:15
想象这样一些场景:未来,无论是窗户和墙壁,还是手机和笔记本电脑,太阳能电池无处不在。麻省理工学院(MIT)电子工程和计算机科学系教授孔静(音译),近日利用石墨烯研发的可弯曲透明太阳能电池,就让这一梦想中的场景离现实更近了一步。这种太阳能电池无需单独安装,可集成到手机和电脑屏幕内,有望大幅降低这些电子产品的制造成本。 石墨烯“临危受命” 近10年来,研究人员一直在研发各种透明的有机太阳能电池,并取...
分类: 环境生态网

在非洲后院保护灵长类动物

环境资讯 - 星期五, 08/11/2017 - 17:56
科特迪瓦塔伊国家公园里发现的西方红色疣猴。 图片来源:W. Scott McGraw 科特迪瓦首都阿比让瑞士科学研究中心灵长类保护学家Inza Koné已经适应了克服逆境。在本世纪初该国内战中,尽管很多国际研究人员纷纷撤离,他和同事依然设法让冲突区域的研究继续进行,因为他们与那些地方的社区建立了长期的关系。在塔伊国家公园――西非灵长类动物雨林最后的遗址之一,这样的关系可以让黑猩猩和猴子长期研究...
分类: 环境生态网

【安全预警】关于Windows 两个关键远程代码执行漏洞通知

环境生态社区 - 星期三, 06/28/2017 - 14:39
6月13日,微软官方披露了两个远程代码执行漏洞(CVE-2017-8543)Windows Search远程代码执行漏洞和(CVE-2017-8464)LNK文件(快捷方式)远程代码执行漏洞,攻击者可向Windows Search服务发送精心构造的SMB消息或通过可移动驱动器(如U盘)或远程共享等方式将包含恶意LNK文件和与之相关的恶意二进制文件传播给用户诱导用户点击进行触发,利用成功后,可造成远程代码执行,控制目标主机。【漏洞概述】1)CVE-2017-8543: Windows Search远程代码执行漏洞 漏洞描述:当Windows搜索在处理内存中的对象时,存在远程代码执行漏洞.攻击者如...
分类: 环境生态网

建立江河湖泊水环境保护联合协调机制

环境生态社区 - 星期三, 06/28/2017 - 14:39
本报记者郭薇6月27日北京报道 第十二届全国人大常委会第二十八次会议6月27日下午在北京人民大会堂闭幕。会议经表决,通过了关于修改水污染防治法的决定。会议结束后,全国人大常委会办公厅召开新闻发布会,全国人大常委会法制工作委员会国家法室副主任童卫东和环境保护部政策法规司司长别涛就关于修改水污染防治法的决定的有关问题回答了记者提问。在回答记者提问时童卫东介绍,水污染防治法修改涉及主要的问题有3个:一是关于河长制;二是关于农业农村水污染防治;三是关于饮用水保护。河长制是河湖管理工作的一项制度创新,也是我国水环境治理体系和保障国家水安全的制度创新。在审议中,常委会组成人员和有关地方、社会公众都提出要将...
分类: 环境生态网

Directed gene-copy variation: The key to conquering new environments

Plants & Animals - 星期三, 06/28/2017 - 02:28
A study of yeast reveals new mechanism that allows cells to adapt to environmental changes more rapidly by accelerating genetic changes around genes that boost fitness.
分类: ScienceDaily

Biologist looks at butterflies to help solve human infertility

Plants & Animals - 星期三, 06/28/2017 - 02:28
A biologist helps decode the structural complexities of male butterfly ejaculate and co-evolving female reproductive tract. Findings from these biochemical relationships may help unlock certain mysteries of human infertility.
分类: ScienceDaily

Lake harvests are likely more fruitful than we knew

Earth & Climate - 星期三, 06/28/2017 - 01:45
Harvests from freshwater fisheries such as the Great Lakes could total more than 12 million tons a year globally and contribute more to global food supplies and economies than previous estimates indicate, according to a study.
分类: ScienceDaily

Genetic engineering tool generates antioxidant-rich purple rice

Plants & Animals - 星期三, 06/28/2017 - 01:45
Researchers in China have developed a genetic engineering approach capable of delivering many genes at once and used it to make rice endosperm -- seed tissue that provides nutrients to the developing plant embryo -- produce high levels of antioxidant-boosting pigments called anthocyanins. The resulting purple endosperm rice holds potential for decreasing the risk of certain cancers, cardiovascular disease, diabetes, and other chronic disorders.
分类: ScienceDaily

Insights into closed enzymes

Plants & Animals - 星期二, 06/27/2017 - 22:54
Scientists have arrived at a structural model of the enzyme adenylate kinase in its closed state.
分类: ScienceDaily

Structures vital to virus replication illuminated

Plants & Animals - 星期二, 06/27/2017 - 22:54
Scientists have, for the first time, imaged molecular structures vital to how a major class of viruses replicates within infected cells. The research uses pioneering cryo-electron tomography to reveal the complex viral replication process in vivid detail, opening up new avenues to potentially disrupt, dismantle or redirect viral machinery.
分类: ScienceDaily

Safeguarding sustainability through forest certification mapping

Earth & Climate - 星期二, 06/27/2017 - 22:54
How can we ensure forest protection and sustainable forest biomass production at the same time? A first-ever global map of certified forest areas, based on a participatory and collaborative mapping approach, contributes to the answer.
分类: ScienceDaily

Safeguarding sustainability through forest certification mapping

Plants & Animals - 星期二, 06/27/2017 - 22:54
How can we ensure forest protection and sustainable forest biomass production at the same time? A first-ever global map of certified forest areas, based on a participatory and collaborative mapping approach, contributes to the answer.
分类: ScienceDaily

The dust storm microbiome

Earth & Climate - 星期二, 06/27/2017 - 22:54
The airborne dust carried in sand storms affects the health of people and ecosystems alike. New research suggests that part of the effect might not be in the particles of dust but rather in bacteria that cling to them, traveling many kilometers in the air with the storms.
分类: ScienceDaily

The dust storm microbiome

Plants & Animals - 星期二, 06/27/2017 - 22:54
The airborne dust carried in sand storms affects the health of people and ecosystems alike. New research suggests that part of the effect might not be in the particles of dust but rather in bacteria that cling to them, traveling many kilometers in the air with the storms.
分类: ScienceDaily

Bioplastic derived from soya protein which can absorb up to forty times its own weight

Plants & Animals - 星期二, 06/27/2017 - 22:53
Researchers are testing the strength of a new organic material as a dispenser of micronutrients in crops. This new product, which is organic and biodegradable, is environmentally friendly. For that reason, the experts are exploring its use in the area of horticulture, specifically as a raw material from which to make agricultural nutrient dispensers.
分类: ScienceDaily

New photoacoustic technique detects gases at parts-per-quadrillion level

Earth & Climate - 星期二, 06/27/2017 - 22:53
A new technique enables the detection of gases, such as atmospheric pollutants, present in extremely small quantities that are otherwise difficult or impossible to detect.
分类: ScienceDaily

As climate stirs Arctic sea ice faster, pollution tags along

Earth & Climate - 星期二, 06/27/2017 - 22:53
A warming climate is not just melting the Arctic's sea ice; it is stirring the remaining ice faster, increasing the odds that ice-rafted pollution will foul a neighboring country's waters, says a new study.
分类: ScienceDaily

How many protozoa are in the water we drink?

Plants & Animals - 星期二, 06/27/2017 - 22:53
Researchers have analyzed drinking water and detected oocysts of Cryptosporidium and cysts of Giardia, two protozoa that cause outbreaks of diarrhea in humans. The levels detected are very low and do not represent a health risk; however, according to the study, the ubiquity of these parasites and the inefficiency of conventional water treatment in reducing them may present a public health issue.
分类: ScienceDaily
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