Meine Merkliste
my.chemie.de  
Login  

342 Aktuelle Fachpublikationen zum Thema temperature

rss
mit folgenden Suchkriterien:

Temperature dependence of amino acid hydrophobicities [Chemistry]

16.06.2015 | Richard Wolfenden; Charles A. Lewis Jr.; Yang Yuan; Charles W. Carter Jr., Proceedings of the National Academy of Sciences current issue, 2015

The hydrophobicities of the 20 common amino acids are reflected in their tendencies to appear in interior positions in globular proteins and in deeply buried positions of membrane proteins. To determine whether these relationships might also have been valid in the warm surroundings where life may ...

mehr

Equilibrium phase diagram of a randomly pinned glass-former [Physics]

02.06.2015 | Misaki Ozawa; Walter Kob; Atsushi Ikeda; Kunimasa Miyazaki, Proceedings of the National Academy of Sciences current issue, 2015

We use computer simulations to study the thermodynamic properties of a glass-former in which a fraction c of the particles has been permanently frozen. By thermodynamic integration, we determine the Kauzmann, or ideal glass transition, temperature TK(c) at which the configurational entropy ...

mehr

Effect of warming temperatures on US wheat yields [Economic Sciences]

02.06.2015 | Jesse Tack; Andrew Barkley; Lawton Lanier Nalley, Proceedings of the National Academy of Sciences current issue, 2015

Climate change is expected to increase future temperatures, potentially resulting in reduced crop production in many key production regions. Research quantifying the complex relationship between weather variables and wheat yields is rapidly growing, and recent advances have used a variety of ...

mehr

Giant thermal spin-torque-assisted magnetic tunnel ȷunction switching [Physics]

26.05.2015 | Aakash Pushp; Timothy Phung; Charles Rettner; Brian P. Hughes; See-Hun Yang; Stuart S. P. Parkin, Proceedings of the National Academy of Sciences current issue, 2015

Spin-polarized charge currents induce magnetic tunnel junction (MTJ) switching by virtue of spin-transfer torque (STT). Recently, by taking advantage of the spin-dependent thermoelectric properties of magnetic materials, novel means of generating spin currents from temperature gradients, and ...

mehr

Thermodynamics of formation of coffinite, USiO4 [Chemistry]

26.05.2015 | Xiaofeng Guo; Stéphanie Szenknect; Adel Mesbah; Sabrina Labs; Nicolas Clavier; Christophe Poinssot; Sergey V. Ushako ..., Proceedings of the National Academy of Sciences current issue, 2015

Coffinite, USiO4, is an important U(IV) mineral, but its thermodynamic properties are not well-constrained. In this work, two different coffinite samples were synthesized under hydrothermal conditions and purified from a mixture of products. The enthalpy of formation was obtained by ...

mehr

Activation of the bacterial thermosensor DesK involves a serine zipper dimerization motif that is modulated by bilayer thickness [Biochemistry]

19.05.2015 | Larisa Estefanía Cybulski; Joost Ballering; Anastassiia Moussatova; Maria Eugenia Inda; Daniela B. Vazquez; Tsjerk A ..., Proceedings of the National Academy of Sciences current issue, 2015

DesK is a bacterial thermosensor protein involved in maintaining membrane fluidity in response to changes in environmental temperature. Most likely, the protein is activated by changes in membrane thickness, but the molecular mechanism of sensing and signaling is still poorly understood. Here we ...

mehr

Signature properties of water: Their molecular electronic origins [Physics]

19.05.2015 | Vlad P. Sokhan; Andrew P. Jones; Flaviu S. Cipcigan; Jason Crain; Glenn J. Martyna, Proceedings of the National Academy of Sciences current issue, 2015

Water challenges our fundamental understanding of emergent materials properties from a molecular perspective. It exhibits a uniquely rich phenomenology including dramatic variations in behavior over the wide temperature range of the liquid into water’s crystalline phases and amorphous states. We ...

mehr

Specific heat and sound velocity at the relevant competing phase of high-temperature superconductors [Physics]

19.05.2015 | Chandra M. Varma; Lijun Zhu, Proceedings of the National Academy of Sciences current issue, 2015

Recent highly accurate sound velocity measurements reveal a phase transition to a competing phase in YBa2Cu3O6+δ that is not identified in available specific heat measurements. We show that this signature is consistent with the universality class of the loop current-ordered state when the ...

mehr

Molecular singlet fission in pentacene dimers [Chemistry]

28.04.2015 | Johannes Zirzlmeier; Dan Lehnherr; Pedro B. Coto; Erin T. Chernick; Rubén Casillas; Bettina S. Basel; Michael Thoss; ..., Proceedings of the National Academy of Sciences current issue, 2015

Singlet fission (SF) has the potential to supersede the traditional solar energy conversion scheme by means of boosting the photon-to-current conversion efficiencies beyond the 30% Shockley–Queisser limit. Here, we show unambiguous and compelling evidence for unprecedented intramolecular SF ...

mehr

Plant nanobionic materials with a giant temperature response mediated by pectin-Ca2+ [Plant Biology]

14.04.2015 | Raffaele Di Giacomo; Chiara Daraio; Bruno Maresca, Proceedings of the National Academy of Sciences current issue, 2015

Conventional approaches to create biomaterials rely on reverse engineering of biological structures, on biomimicking, and on bioinspiration. Plant nanobionics is a recent approach to engineer new materials combining plant organelles with synthetic nanoparticles to enhance, for example, ...

mehr

Seite 1 von 35
Suche per e-Mail abonnieren

Sie erhalten passend zu Ihrer Suche die neusten Suchergebnisse per E-Mail. Dieser Service ist für Sie kostenlos und kann jederzeit abbestellt werden.

Ihr Bowser ist nicht aktuell. Microsoft Internet Explorer 6.0 unterstützt einige Funktionen auf Chemie.DE nicht.