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Key: Meeting M      Journal J      Funder F

Showing releases 226-250 out of 524 releases.
Click to go to page: [ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 ]

Public Release: 27-May-2016
Science
Schrödinger's cat is alive and dead in two places at once

Through new experiments involving the famous Schrödinger cat state paradox, researchers have shown that a 'quantum cat' can be both alive and dead, and in two places at once.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 27-May-2016
Science
Mars is emerging from an Ice Age

Radar measurements of Mars’ polar ice caps reveal that the now mostly dry and dusty planet is emerging from an ice age, following multiple rounds of climate change.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 27-May-2016
Science
New 'genetic barcode' technique reveals details of cell lineage

By using the gene editing tool CRISPR to create unique genetic'“barcodes,' it’s possible to track the lineage of cells in a living organism, a new study reveals.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 26-May-2016
Nano Research
Noble metal nanoclusters and their in situ calcination to nanocrystals

Noble metal nanoclusters and nanocrystals become the hot spot because of their applications in catalysis area. Jiatao Zhang etc. from Beijing Institute of Technology developed a versatile aqueous method to prepare Au, Ag, Cu nanoclusters on TiO2 nanosheets support. Then based on in-situ calcination, the Au, Ag, Cu nanocrystals on TiO2 support have been prepared too. These noble metal nanoclusters and nanocrystals have demonstrated potential applications in catalytic organic synthesis and photocatalysis.

Contact: Wenbo Tian
tianwb@tup.tsinghua.edu.cn
Tsinghua University Press

Public Release: 26-May-2016
Nano Research
Ternary supramolecular quantum-dot network flocculation for selective lectin detection

Flocculation of ternary supramolecular nanoparticle networks (NPN) can be applied for Concanavalin A (ConA) detection: NPN form and flocculate due to the orthogonal binding of bifunctional linker molecules to quantum dots and lectins. Monitoring the decrease in quantum-dot fluorescence intensity over time, caused by controlled network formation and flocculation, allows for selective, qualitative and quantitative lectin detection.

Contact: Wenbo Tian
tianwb@tup.tsinghua.edu.cn
Tsinghua University Press

Public Release: 26-May-2016
Nano Research
Gold/WO3 nanocomposite photoanodes for plasmonic solar water splitting

We developed a facile and novel method to prepare Au/WO3 composite photoanode for solar water splitting. The method involved a charging step in which electrons were charged into WO3 under negative bias and a subsequent reducing step in which the stored electrons were used to reductively deposit Au on the surface of WO3. The obtained Au/WO3 nanocomposites exhibited greatly improved photoactivity and Faraday efficiency for photoelectrochemical oxygen evolution reaction.

Contact: Wenbo Tian
tianwb@tup.tsinghua.edu.cn
Tsinghua University Press

Public Release: 26-May-2016
Science Translational Medicine
Can Alzheimer’s Disease-Associated Peptide Fight Bacterial Infection?

Amyloid-β is a sticky peptide notorious for forming destructive plaques in the brains of Alzheimer’s disease patients, but a new study suggests that it may also serve a protective function as an antimicrobial peptide.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 26-May-2016
Science
From jungfraujoch station: How new atmospheric aerosols form

New particles form in the lowest layer of Earth's atmosphere through condensation of highly oxygenated compounds, a new study shows, and without sulfuric acid -- previously considered essential to nucleation.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 25-May-2016
Nano Research
Spontaneous photoelectric field-enhancement effect prompts the low cost hierarchical growth of highly ordered heteronanostructures for solar water splitting

Based on the spontaneous photo-induced electric field-enhancement inherent in pyramid-like morphology, a new structural design strategy is demonstrated by highly specific site-selective deposition of a molecular complex at the apex of a semiconductor nanopyramid-array due to anisotropic separation of photogenerated electron-hole pairs. This potentially universal fabrication approach merging molecular redox chemistry and inorganic semiconductors is illustrated here on highly-ordered CoPi/BiVO4 heteronanostructures showing enhanced photoelectrochemical water oxidation activity and stability in neutral aqueous solutions without sacrificial agents

Contact: Wenbo Tian
tianwb@tup.tsinghua.edu.cn
Tsinghua University Press

Public Release: 25-May-2016
Nano Research
In situ decomposition of metal-organic frameworks into ultrathin nanosheets for the oxygen evolution reaction

We develop a synthesis strategy for 2-D Co-based hydroxide ultrathin nanosheets (UNSs) by utilizing the instability and high component controllability of Co-based acetate hydroxide metal-organic frameworks (MOFs), which exhibit excellent catalytic performance for oxygen evolution reaction (OER), as compared to the commercial IrO2 electrocatalyst. This strategy can be readily extended to transform diverse MOF precursors with different constituents into corresponding functional metal hydroxide and oxide UNSs applicable to many advanced energy technologies.

Contact: Wenbo Tian
tianwb@tup.tsinghua.edu.cn
Tsinghua University Press

Public Release: 25-May-2016
Nano Research
Performance projections for ballistic carbon nanotube FinFET at circuit level

CNT FinFET can provide significant advantage in speed compared to Si FinFET, arising from its nearly thirty-times-larger current density. A suitable adjustment of Vth can effectively contribute to a significant suppression of power dissipation, and leads to an optimization on EDP. In particular it is demonstrated that CNT FinFET with optimized threshold voltage can provide about 50 times EDP advantage over Si FinFET, indicating huge developing room for CNT-based electronics.

Contact: Wenbo Tian
tianwb@tup.tsinghua.edu.cn
Tsinghua University Press

Public Release: 24-May-2016
Nano Research
Iron polyphthalocyanine sheathed multiwalled carbon nanotubes a high-performance electrocatalyst for oxygen reduction reaction

Organic-carbon hybrid materials from the in-situ polymerization of iron phthalocyanine on multiwalled carbon nanotube scaffolds without any energy intensive high-temperature pyrolysis exhibit excellent electrocatalytic activity and durability for oxygen reduction reaction in both acid and base. They represent a dramatic improvement over previous phthalocyanine-based materials. With the ease of preparation and scaling up, we believe that our electrocatalysts hold great promising for future fuel cells or metal-air batteries.

Contact: Wenbo Tian
tianwb@tup.tsinghua.edu.cn
Tsinghua University Press

Public Release: 24-May-2016
Nano Research
In situ synthesis of chemically bonded NaTi2(PO4)3/rGO 2-D nanocomposite for high-rate sodium-ion batteries

A NaTi2(PO4)3/rGO nanocomposite was successfully synthesized using a facile microwave-assisted solvothermal method. The strong anchoring of NaTi2(PO4)3 nanoparticles on rGO substrates via chemical bonding enhanced the electrical conductivity and rate capability. The specific discharge capacity was 128.6 mAh g-1 at 0.1 C-rate and 93.7 mAh g-1 even at 50 C-rate, displaying the best rate capability compared with the ever reported NaTi2(PO4)3-based anode materials for sodium-ion batteries.

Contact: Wenbo Tian
tianwb@tup.tsinghua.edu.cn
Tsinghua University Press

Public Release: 24-May-2016
Nano Research
Nanoscale color sensors made on semiconducting multi-wall carbon nanotubes

Arrays of nanoscale photodiodes are made on single multi-wall carbon nanotubes by exploring their unique structures, enabling wavelength sensing.

Contact: Wenbo Tian
tianwb@tup.tsinghua.edu.cn
Tsinghua University Press

Public Release: 24-May-2016
Nano Research
Low-temperature quantum transport in CVD-grown single crystal graphene

We present a detailed study on the electronic properties of high-quality single crystal monolayer graphene.

Contact: Wenbo Tian
tianwb@tup.tsinghua.edu.cn
Tsinghua University Press

Public Release: 24-May-2016
Proceedings of the National Academy of Sciences
Also of interest from the Proceedings of the National Academy of Sciences

According to a study involving more than 7,500 citizens that was conducted during elections in New Jersey in 2009 and Texas in 2010, untrained get-out-the-vote callers discerned which self-predicted voters would either vote or fail to vote by using subtle nonverbal cues; the callers used respondents' voice-related cues to discern their intent to vote, suggesting that untrained callers could enable judicious allocation of political campaign resources.

Contact: PNAS News Office
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 24-May-2016
Proceedings of the National Academy of Sciences
Beer brewing in ancient China

Archaeological artifacts from a site in northern China suggest a 5,000-year-old recipe for beer, according to a study.

Contact: PNAS News Office
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 24-May-2016
Proceedings of the National Academy of Sciences
Modeling epidemics using mobile phone data

Researchers report a model of a cholera epidemic based on mobile phone call data. Mobile phone data permits the tracking of cell phone users' movements, thus providing a rich source of information on population mobility, which is an important driver of infectious disease dynamics.

Contact: PNAS News Office
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 24-May-2016
Proceedings of the National Academy of Sciences
Contextual factors and reproducibility of scientific results

The contextual sensitivity of a research topic affects the likelihood that a study's results will be reproduced, a study finds.

Contact: PNAS News Office
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 24-May-2016
Proceedings of the National Academy of Sciences
Native Americans and sustainable oyster fishing

Prehistoric Native American fisheries can provide a blueprint for sustainable oyster harvesting, a study suggests.

Contact: PNAS News Office
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 24-May-2016
Proceedings of the National Academy of Sciences
Skeletal differences between Neandertal and modern human infants

A study suggests that Neandertal infants were born with many skeletal features of adult Neandertals. While it is known that many differences between Neandertal and modern human skulls are present at birth, it is not clear if the same is true of differences in the rest of the body.

Contact: PNAS News Office
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 24-May-2016
Proceedings of the National Academy of Sciences
Childbirth, childcare, and evolution of intelligence

A study suggests that human intelligence might have evolved in response to the demands of childcare.

Contact: PNAS News Office
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 24-May-2016
JAMA
Rates of obesity, diabetes lower in neighborhoods that are more walkable

Urban neighborhoods in Ontario, Canada, that were characterized by more walkable design were associated with decreased prevalence of overweight and obesity and decreased incidence of diabetes between 2001 and 2012, according to a study appearing in the May 24/31 issue of JAMA.

Contact: Leslie Shepherd
ShepherdL@smh.ca
The JAMA Network Journals

Public Release: 24-May-2016
JAMA
Antidepressants commonly and increasingly prescribed for nondepressive indications

In a study appearing in the May 24/31 issue of JAMA, Jenna Wong, M.Sc., of McGill University, Montreal, Canada, and colleagues analyzed treatment indications for antidepressants and assessed trends in antidepressant prescribing for depression.

Contact: Cynthia Lee
cynthia.lee@mcgill.ca
The JAMA Network Journals

Public Release: 24-May-2016
JAMA
Higher salt intake may increase risk of CVD among patients with chronic kidney disease

In a study appearing in the May 24/31 issue of JAMA, Jiang He, M.D., Ph.D., of the Tulane University School of Public Health and Tropical Medicine, New Orleans, and colleagues evaluated more than 3,500 participants with chronic kidney disease (CKD), examining the association between urinary sodium excretion and clinical cardiovascular disease (CVD) events.

Contact: Keith Brannon
kbrannon@tulane.edu
The JAMA Network Journals

Showing releases 226-250 out of 524 releases.
    Click to go to page: [ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 ]