搜索结果: 1-15 共查到“生物学 lead”相关记录18条 . 查询时间(0.093 秒)
Plant-derived chemicals called cardenolides have long been used to treat heart disease and have shown potential as cancer therapies. But the compounds are toxic, making it difficult for doctors to pre...
Bees' movements may lead to new swimming, flying robots（图）
Bees movements new swimming flying robots
2020/1/8
Walking on Caltech's campus, engineer Chris Roh happened to see a bee stuck in the water of Millikan Pond. Although it was a common sight, it led Roh and his colleague Mory Gharib to a discovery about...
Genetic mutation trade-offs lead to parallel evolution
Genetic mutation trade-offs parallel evolution
2017/5/23
Organisms in nature adapt and evolve in complex environments. For example, when subjected to changes in nutrients, antibiotics, and predation, microbes in the wild face the challenge of adapting multi...
Unexpected protein structure findings could lead to new therapies
protein structure lead to new therapies
2017/4/6
Scientists have determined unexpected characteristics of a key protein linked to blood pressure control and to nerve growth, pain control and heart tissue regeneration. The findings, published April 5...
Effects of wheat-flour biscuits fortified with iron and EDTA, alone and in combination, on blood lead concentration, iron status, and cognition in children: a double-blind randomized controlled trial
NaFeEDTA cognition fortification iron lead
2016/10/12
Background: Lead is a common neurotoxicant and its absorption may be increased in iron deficiency (ID). Thus, iron fortification to prevent ID in populations is a promising lead mitigation strategy. T...
Biochemists’ Discovery Could Lead to Vaccine Against ‘Flesh-Eating’ Bacteria
Biochemists Vaccine Against Flesh-Eating Bacteria
2016/9/5
One of the world’s longest-running, most comprehensive climate change experiments produced some surprising results. The extensive experiment subjected grassland ecosystems to sixteen possible future c...
Flexible film may lead to phone-sized cancer detector
Flexible film phone-sized cancer detector
2016/1/14
A thin, stretchable film that coils light waves like a Slinky could one day lead to more precise, less expensive monitoring for cancer survivors.The University of Michigan chemical engineers who devel...
Science friction: Unlocking this basic force may lead to futuristic technologies（图）
Science friction Unlocking futuristic technologies
2015/3/4
Here’s the rub with friction — scientists don’t really know how it works. Sure, humans have been harnessing the power of friction since rubbing two sticks together to build the first fire, but th...
Structural Changes That Drive Timed Promoter Release In Transcription Reciprocally Lead To Abortive Instability
Biological sciences Aminopurine Abortive cycling Kinetics P266l Rna polymerase Transition Abortive instability
2014/12/10
RNA polymerases carry out a process, which at times carries contradictory mechanistic requirements. During initiation, an RNA polymerase should be highly sequence specific, binding only to and initiat...
RI Hospital researchers identify components in C. diff that may lead to better treatment（图）
C. diff bacterium
2014/1/30
Rhode Island Hospital researchers have identified components in Clostridium difficile (C. diff) that may lead to new diagnostic tools, and ultimately more timely and effective treatment for this often...
The Effects of Propolis on Biochemical Parameters and Activity of Antioxidant Enzymes in Broilers Exposed to Lead-Induced Oxidative Stress
Broiler Lead Oxidative Stress Propolis Blood Malondialdehyde Antioxidant Enzymes
2010/5/5
This study aimed to determine the effects of vitamin C and propolis-supplemented feeds on some blood parameters, lipid peroxidation, and activities of some antioxidant enzymes in broilers exposed to o...
Lead (Pb) and Copper (Cu) Concentration in the Eggshells of Audouin´s Gull (Larus audouinii) in Turkey
Audouin´ s gull eggshells Cu Pb Turkey
2008/10/30
Audouin´s gull (Larus audouinii) eggshells from 2 archipelagos (Karaburun-İzmir and Aydıncık-Mersin) in Turkey were collected between 2002 and 2003, and analyzed for lead (Pb) and...
Determination of Airborne Lead Contamination in Cichorium intybus L. in an Urban Environment
Lead exposure Cichorium intybus urban environment edible wild plants
2008/7/30
The major source of environmental lead (Pb) is the combustion of leaded gasoline. After emission as exhaust, lead in the air falls to earth and contaminates soil and plants. Seventeen wild chicory (Ci...
Nanocrystal research could lead to new vaccine and computer inks（图）
cellulose Nanocrystal Molecular Biology
2007/4/13
BLACKSBURG, Va., March 28, 2007 -- Maren Roman, assistant professor in the wood science and forest products department of the College of Natural Resources at Virginia Tech, is taking nanocrystal resea...
Effects of Lead and Particulate Montmorillonite on Growth Performance, Hormone and Organ Weight in Pigs
Particulate Montmorillonite Lead Growth Hormone Pigs
2005/4/20
Seventy-two crossbred gilts of approximately 33 kg initial weight were used in this study. The gilts were randomly assigned into three groups. The three dietary treatments were basal diet only (contro...