Results 61 to 70 of about 8,965,053 (394)

Deep Chandra observation and numerical studies of the nearest cluster cold front in the sky [PDF]

, 2015
We present the results of a very deep (500 ks) Chandra observation, along with tailored numerical simulations, of the nearest, best resolved cluster cold front in the sky, which lies 90 kpc (19 arcmin) to the north-west of M 87.
Allen, S. W., Fabian, A. C., Ichinohe, Y., Keshet, U., Markevitch, M., Roediger, E., Ruszkowski, M., Sanders, J. S., Simionescu, A., Werner, N., Zhuravleva, I., ZuHone, J. A.   +11 more
core   +2 more sources

Temperature variation of ultraslow light in a cold gas [PDF]

Physical Review A, 2000
A model is developed to explain the temperature dependence of the group velocity as observed in the experiments of Hau et al (Nature {\bf397}, 594 (1999)). The group velocity is quite sensitive to the change in the spatial density. The inhomogeneity in the density and its temperature dependence are primarily responsible for the observed behavior.
Morigi, Giovanna, Agarwal, Girish S., American Physical Society   +2 more
openaire   +6 more sources

Thermostable neutral metalloprotease from Geobacillus sp. EA1 does not share thermolysin's preference for substrates with leucine at the P1′ position

FEBS Letters, EarlyView.
Knowing how proteases recognise preferred substrates facilitates matching proteases to applications. The S1′ pocket of protease EA1 directs cleavage to the N‐terminal side of hydrophobic residues, particularly leucine. The S1′ pocket of thermolysin differs from EA's at only one position (leucine in place of phenylalanine), which decreases cleavage ...
Grant R. Broomfield, Torsten Kleffmann, David J. Saul, Sigurd M. Wilbanks   +3 more
wiley   +1 more source

Universal Minimum Heat Leak on Low-Temperature Metallic Electrical Leads

, 2006
Low-temperature electronic systems require electrical leads which have low electrical resistance to provide bias current I without excessive voltage drop V. But proper cryogenic design also requires high thermal resistance to maintain a minimum heat leak
Kadin, Alan M.
core   +1 more source

Small Cold Temperature Instrument Packages

Physics Procedia, 2011
AbstractWe are developing a small cold temperature instrument package concept that integrates a cold temperature power system with ultra low temperature ultra low power electronics components and power supplies now under development into a ‘cold temperature surface operational’ version of a planetary surface instrument package.
Clark, Pamela E., Millar, P. S., Yeh, P. S., Feng, S., Brigham, D., Beaman, B.   +5 more
openaire   +2 more sources

Circadian lipid synthesis in brown fat maintains murine body temperature during chronic cold

Proceedings of the National Academy of Sciences of the United States of America, 2019
Significance Circadian coordination of food availability, energy expenditure, and lipid metabolism is crucial for metabolic adaptation to environmental challenges. Here, we demonstrate that chronic cold temperature causes new circadian rhythms of de novo
Marine Adlanmerini, Bryce J Carpenter, Jarrett R. Remsberg, Y. Aubert, Lindsey C Peed, Hannah J Richter, M. Lazar   +6 more
semanticscholar   +1 more source

Ergothioneine supplementation improves pup phenotype and survival in a murine model of spinal muscular atrophy

FEBS Letters, EarlyView.
Spinal muscular atrophy (SMA) is a genetic disease affecting motor neurons. Individuals with SMA experience mitochondrial dysfunction and oxidative stress. The aim of the study was to investigate the effect of an antioxidant and neuroprotective substance, ergothioneine (ERGO), on an SMNΔ7 mouse model of SMA.
Francesca Cadile, Daniela Ratto, Giorgia Rastelli, Ottavia Eleonora Ferraro, Caterina Temporini, Sunil Kumar, Simona Boncompagni, Paola Rossi, Monica Canepari   +8 more
wiley   +1 more source

Do Different Next-to-Skin Garments Change Thermal Sensation, Jump Height and Landing Knee Valgus After Cold Exposure?

Applied Sciences
Exposure to the cold can negatively affect muscle performance. This study compared the effects of two different full-length, lower body, next-to-skin garments on thermal sensation, countermovement jump (CMJ) height and knee frontal plane angle upon ...
Ben Kasehagen, Susan Morris, Kevin Netto
doaj   +1 more source

Kination Dominated Reheating and Cold Dark Matter Abundance

, 2005
We consider the decay of a massive particle under the complete or partial domination of the kinetic energy density generated by a quintessential exponential model and we impose a number of observational constraints originating from nucleosynthesis, the ...
Agashe, Allahverdi, Baer, Baltz, Bassett, Bean, Bennett, Bélanger, Bélanger, Bœhm, C. Pallis, Caldwell, Catena, Cembranos, Chattopadhyay, Chattopadhyay, Cheng, Chung, Copeland, Covi, Cyburt, Davidson, de Garcia Maia, Dimopoulos, Dimopoulos, Drees, Edsjö, Ellis, Ellis, Ellis, Ellis, Ellis, Ellis, Ellis, Feng, Ferreira, Fornengo, França, Fujii, Fujii, Gardner, Gelmini, Gelmini, Gherghetta, Giovannini, Giudice, Goldberg, Gondolo, Gondolo, Gómez, Gómez, Hannestad, Joyce, Joyce, Kamionkowski, Kane, Kofman, Kofman, Kolb, Kolb, Lahanas, Lahanas, Lahanas, Lazarides, Lazarides, Liddle, Lyth, Matchev, McDonald, Moroi, Muñoz, Nagano, Nihei, Okada, Pallis, Pallis, Pallis, Peebles, Profumo, Riess, Sahni, Salati, Scherrer, Servant, Spergel, Spokoiny, Tegmark, Turner, Wetterich, Yahiro   +89 more
core   +3 more sources

The Effect of Cold Temperature on Increased Exacerbation of Chronic Obstructive Pulmonary Disease: A Nationwide Study

PLoS ONE, 2013
Background Seasonal variations in the acute exacerbation of chronic obstructive pulmonary disease (COPD) have been reported. However, the influence of air temperature and other meteorological factors on COPD exacerbation remains unclear. Methods National
C. Tseng, Yung-Tai Chen, Shuo-Ming Ou, Y. Hsiao, Szu-yuan Li, Shuu-Jiun Wang, A. Yang, Tzeng-Ji Chen, D. Perng   +8 more
semanticscholar   +1 more source