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Zeolites are a class of minerals used in everything from industrial catalysts and chemical filters to laundry detergents and cat litter. They are mostly composed of silicon and aluminum — two abundant...
Picture two children playing on swings in a playground. One is a daredevil, launching themselves high off the ground in big arcs. The other daydreams, swinging gently.
'Like a fishing net,' nanonet collapses to trap drug molecules（图）
nanonet collapses trap drug molecules
2020/10/10
Scientists are casting a net for nanoparticles.A Northwestern University team has discovered a new, rapid method for fabricating nanoparticles from a simple, self-assembling polymer. This re...
探讨输尿管硬镜联合N-Trap阻石篮钬激光碎石术治疗嵌顿性输尿管上段结石的疗效。方法根据手术方式不同，将112例嵌顿性输尿管上段结石患者分成两组，A组采取输尿管硬镜联合N-Trap阻石篮钬激光碎石术（60例），B组采取输尿管软镜钬激光碎石术（52例）；观察并比较两组患者手术时间、术后2d及1个月结石清除率、术后住院时间、术后并发症发生情况及患者满意度等指标。
比较双层叠帐法和BG-trap诱捕器法2种媒介伊蚊监测方法在登革热疫点的捕蚊效果，为科学开展监测提供参考。方法 2017年9－10月，选择杭州市12个区（县）的160个住宅区，包括核心区、警戒区及监控区，同时使用双层叠帐法和BG-trap诱捕器法对居民区及其周围环境进行媒介伊蚊应急监测，2种方法设置间隔100 m以上，监测30 min，分别计算叮咬指数（只/h）和诱蚊指数（只/h）。采用单因素方差...
The sand trap:Demand outpaces caution–and knowledge（图）
sand trap Demand outpaces caution knowledge
2017/9/20
Sand, spanning miles of beaches, carpeting vast oceans and deserts, is a visual metaphor for limitless resources. Yet researchers in this week’s journal Science seize another metaphor – sand in an ho...
Scientists discover spring-loaded mechanism in unusual species of trap-jaw ant（图）
scientists spring-loaded mechanism trap-jaw ant
2017/9/19
Researchers reveal how a group of trap-jaw ants can snap their jaws shut at speeds of up to 50 miles per hour – just fast enough to capture their elusive prey.
They report their findings in the Journ...
Camera-trap research paves the way for global monitoring networks
Camera-trap research global monitoring networks
2017/7/24
Biodiversity loss is one of the driving factors in ecosystem change, on par with climate change and human development. When one species, especially a large predator, disappears from an area, other pop...
我国羊巴贝斯虫trap基因结构及遗传进化分析
羊巴贝斯虫 trap基因 基因结构 系统发生树
2017/8/3
本研究拟解析我国羊巴贝斯虫trap基因的结构特征，并以其为分子标志开展遗传进化分析，为理清我国羊巴贝斯虫的分类关系提供数据。用公布的巴贝斯虫trap基因序列BLAST两个羊巴贝斯虫全基因组本地数据库，以获得的保守序列片段为模板，设计PCR引物；克隆我国分离的6株羊巴贝斯虫trap基因全长序列，分析其序列结构特征；比对序列相似性，构建系统发生树，分析其遗传进化关系。结果克隆获得6株羊巴贝斯虫trap...
Trap and neutralize:A new way to clean contaminated groundwater
Trap neutralize clean contaminated groundwater
2016/4/25
A team of researchers from Washington University in St. Louis have helped discover a new chemical method to immobilize uranium in contaminated groundwater, which could lead to more precise and success...
Trap Me If You Can -- Million Dollar Curve
Publicly verifiable RNG lottery trusted cryptosystem parameters
2016/1/26
A longstanding problem in cryptography is the generation of
publicly verifiable randomness. In particular, public verifiability allows to
generate parameters for a cryptosystem in a way people can l...
Caught in the Bulimic Trap?Persistence and State Dependence of Bulimia Among Young Women
Bulimia Nervosa Demographics State Dependence Instrumental Variables and Dynamic Panel Data Estimation
2015/9/18
Bulimia nervosa (BN) is a growing health concern and its consequences are especially serious given the compulsive nature of the disorder. However, little is known about the mechanisms underlying the p...
Estimation of useful life of a reservoir using sediment trap efficiency
reservoir sedimentation trap efficiency Te
2015/8/13
The most important practical and critical problem related to the performance of reservoirs is the estimation of storage capacity loss due to sedimentation process. The problem to be addressed is to es...
Trap-jaw ants jump with their jaws to escape the antlion's den
Trap-jaw ants jump escape the antlion's den
2015/5/25
Some species of trap-jaw ants use their spring-loaded mandibles to hurl themselves out of harm’s way when an ant-trapping predator stalks, researchers report in the journal PLOS ONE. This dramatic man...
Effect of insecticide-treated trap logs and lure traps for Ips typographus (Coleoptera: Curculionidae) management on nontarget arthropods catching in Norway spruce stands
tripod trap logs pheromone trap
2015/5/5
The numbers of nontarget arthropods captured by Theysohn pheromone traps (TPTs) and insecticidetreated tripod trap logs (TRIPODs) were compared; both kinds of traps were baited with pheromone lures Ph...