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Key: Meeting M      Journal J      Funder F

Showing releases 351-375 out of 534 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 | 22 ]

Public Release: 30-Mar-2016
Nano Research
Two-color spectroscopy of UV excited ssDNA complex with an SWNT photoluminescence probe

Understanding the stability of DNA as a carrier of genetic information against potential damage by ultraviolet (UV) radiation is central for the mitigation of radiation effects on living organisms. Relaxation of UV-excited DNA via electric charge transfer to the surrounding medium, the so called autoionization, was demonstrated. Self-assembled complexes of DNA wrapped around single-wall carbon nanotubes are employed as a model optical system for studying autoionization by two-color photoluminescence spectroscopy, augmented by quantum mechanical calculations.

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

Public Release: 29-Mar-2016
ACM CHI 2016
New scrolling technique accelerates skim reading

Documents can be skimmed 60% faster than presently and with higher recall, shows research from Aalto University The amount of data that we take in from screens each day through documents, email chains, web pages and social media flows is enormous. The continuous scrolling technique we typically use to browse this data is, however, far from perfect.

Contact: Professor Antti Oulasvirta
antti.oulasvirta@aalto.fi
358-503-841-561
Aalto University

Public Release: 29-Mar-2016
Nano Research
Influence of dielectrics with light absorption on the photonic bandgap of porous alumina photonic crystals

The organic vapors with non-ignorable light loss have capillary condensation in the alumina pores when adsorbed to a certain extent, which is the reason for the bottom-transmittance decrease of photonic bandgaps. The results indicate that the turning point in the gap-bottom transmittance is related to the CC of organic vapor adsorbed by porous alumina pores.

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

Public Release: 29-Mar-2016
Nano Research
Exciton dynamics in luminescent carbon nanodots: Electron–hole exchange interaction

The electron-hole exchange interaction is found in luminescent carbon nanodots, which results in that the exciton states of split to the singlet-bright and triplet-dark state. The energy splitting ΔE increase as the size of sp2 clusters decrease. Our work highlights the feasibility of applying carbon dots as active layers in high efficiency white light LED devices

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

Public Release: 29-Mar-2016
Proceedings of the National Academy of Sciences
Also of interest from the Proceedings of the National Academy of Sciences

Researchers report a model of volcanic fissures on Saturn's moon Enceladus in which the fissures connect a subsurface ocean to the moon's icy surface and tidal forces drive water flow into and out of the fissures, generating heat that prevents the fissures from icing over, and in which feedback between tectonic and volcanic activity sustains average power output at the observed value of 5 gigawatts over millions of years.

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

Public Release: 29-Mar-2016
Proceedings of the National Academy of Sciences
Expansiveness and success in modern dating contexts

Expanded body postures might make people more romantically appealing in fast-paced dating situations, a study suggests.

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

Public Release: 29-Mar-2016
Proceedings of the National Academy of Sciences
Recovery of declining fisheries

A study finds that many of the world's ailing fisheries can be restored in less than a decade through timely reforms.

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

Public Release: 29-Mar-2016
Proceedings of the National Academy of Sciences
Ebola transmission and intervention effectiveness

A study suggests that certain interventions implemented in Sierra Leone were effective at containing the recent Ebola outbreak.

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

Public Release: 29-Mar-2016
Proceedings of the National Academy of Sciences
Effects of black carbon in polluted urban centers

Reducing black carbon pollution in urban centers can improve air quality and protect against climate warming, a study suggests.

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

Public Release: 29-Mar-2016
Proceedings of the National Academy of Sciences
Life expectancy of Danish women

The recent rise in Danish women's life expectancy can be largely attributed to the high mortality of Danish women who were born during 1915-1945, a study reports.

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

Public Release: 29-Mar-2016
Proceedings of the National Academy of Sciences
Megacities and seasonal outbreaks of infectious disease

A study examines links between climate and infectious disease transmission dynamics in different zones of a megacity. In regions with an annual monsoon, the onset of rainy weather is often followed by spikes in diseases such as cholera and leptospirosis.

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

Public Release: 29-Mar-2016
Proceedings of the National Academy of Sciences
Desert mangroves and Baja's carbon sink

Mangroves that grow along the desert coasts of Baja California sequester more carbon beneath the ground than their tropical cousins, according to a study.

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

Public Release: 29-Mar-2016
Proceedings of the National Academy of Sciences
Land use policies and deforestation havens

Differences in how local governments protect their forested ecosystems can drive certain agricultural corporations to 'deforestation havens,' a study finds.

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

Public Release: 28-Mar-2016
Nano Research
Ultrathin CoNi double hydroxide/CoO nanosheets synthesized via interface-directed assembly

CoNi LDH/CoO nanosheets, assembled with CoNi LDH and small-sized CoO nanocrystals,has been synthesized. An enhancement in the OER performance is associated with: high-valence Co and Ni acting as catalysis centers; numerous exposed defects and excellent durability derived from the weak crystallinity; increase in OH−/O2 adsorption and transport within the loose and porous structure. In situ reduction and interface-directed assembly is an effective route to the preparation of other LDHs, oxides, and metal nanosheets with transition-metals

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

Public Release: 28-Mar-2016
JAMA Internal Medicine
Mediterranean diet associated with small reduction in risk of hip fracture

Eating a Mediterranean diet full of fruits, vegetables, fish, nuts, legumes and whole grains appears to be associated with a lower risk of hip fracture in women, although the actual risk reduction was small, according to a new study published online by JAMA Internal Medicine.

Contact: Bernhard Haring
Haring_b@ukw.de
The JAMA Network Journals

Public Release: 25-Mar-2016
Nano Research
Self-delivery of a peptide-based prodrug for tumor-targeting therapy

In our study, we have reported a novel RGD-mediated self-deliverable prodrug for tumor therapy. The prodrug self-assembled into nanofibers, which sequestered active CPT molecules within the hydrophobic cores and therefore ensured their bioactivity. RGD groups on the surface of nanofibers indexed the prodrug into tumor tissues/cells, and effectively inhibited tumor growth.

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

Public Release: 25-Mar-2016
Nano Research
Growth and in situ transformation of TiO2 and HTiOF3 crystals on chitosan-polyvinyl alcohol co-polymer substrates under vapor phase hydrothermal conditions

A chitosan-polyvinyl alcohol co-polymer with rich amino and hydroxyl groups are used as the substrate to induce direct growth and in situ sequential transformation of titanate crystals under HF vapor phase hydrothermal conditions. The demonstrated substrate organic functional groups induced crystal formation/transformation approach could be applicable to other material systems.

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

Public Release: 25-Mar-2016
Proceedings of the IEEE
Read my lips: New technology spells out what's said when audio fails

New lip-reading technology developed at the University of East Anglia (UEA) could help in solving crimes and provide communication assistance for people with hearing and speech impairments.

Contact: Press Office
press@uea.ac.uk
44-016-035-93496
University of East Anglia

Public Release: 25-Mar-2016
Science
Most individuals harbor B cells sensitive to HIV-fighting immunogen

Researchers have identified a relatively potent immunogen that could be harnessed to induce the immune system to target HIV.

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

Public Release: 25-Mar-2016
Science
Tolerance to daily versus seasonal temperature changes may dictate fitness

While it’s theorized that vertebrates adapted to endure greater swings in seasonal temperatures tend to have greater elevational ranges, this pattern is reversed in species that are adapted for high daily temperature fluctuations, a new study suggests.

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

Public Release: 25-Mar-2016
Science
Zika arrived in Americas during mid-2013, following upsurge in air travelers

By sequencing a small number of Zika virus genomes from Brazil, researchers have estimated that the virus had a single entry into the Americas, likely more than a year before the virus was reported in Brazil.

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

Public Release: 25-Mar-2016
Science
Creation of minimal cell with just the genes needed for independent life

Researchers have designed and synthesized a minimal bacterial genome, containing only the genes necessary for life, and consisting of just 473 genes.

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

Public Release: 24-Mar-2016
Nano Research
Multilayer ReSe2/MoS2 p–n heterojunctions

We reported vertical heterojunctions based on multilayer exfoliated n-type hexagonal-structure MoS2 and p-type distorted CdCl2-structure ReSe2 nanoflakes. The (opto)electronics based on such heterojunctions are experimentally confirmed to possess preferable functionalities to single component ReSe2 or MoS2 devices, including obvious rectification, elevated electron mobility and on/off current ratio, and efficient photocurrent generation. The Vienna ab initio simulation package was employed to give a standard p–n junction arrangement for the ReSe2/MoS2 heterojunctions.

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

Public Release: 24-Mar-2016
Nano Research
Theoretical study on two-dimensional MoS2 piezoelectric nanogenerators

This study employs the finite-element-method to examine the output characteristics of the two-dimensional MoS2 piezoelectric nanogenerator. Due to lack of center symmetry, the MoS2 flakes with odd number of atomic layers are capable of giving obvious piezoelectric output, which decreases upon the increases of the layer number. In addition, since the MoS2 nanogenerators are only few-atoms thick, they have smaller capacitance than the nanowire/film based nanogenerators, which enable them for potential high-frequency applications.

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

Public Release: 24-Mar-2016
Science Translational Medicine
Prooxidants may fix metabolic defect in arthritis-driving T cells

Researchers have uncovered a metabolic defect that spurs T cells to go rogue in rheumatoid arthritis patients.

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

Showing releases 351-375 out of 534 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 | 22 ]