Results 41 to 50 of about 1,372,867 (304)

A Fiber-Optic Gas Sensor and Method for the Measurement of Refractive Index Dispersion in NIR

Sensors, 2020
This paper presents a method for gas concentration determination based on the measurement of the refractive index dispersion of a gas near the gas resonance in the near-infrared region (NIR).
Matej Njegovec, Denis Donlagic
doaj   +1 more source

Molecular Star Formation Rate Indicators in Galaxies

, 2008
We derive a physical model for the observed relations between star formation rate (SFR) and molecular line (CO and HCN) emission in galaxies, and show how these observed relations are reflective of the underlying star formation law.
Andre P., Bernes C., Christopher K. Walker, Desika Narayanan, Lars Hernquist, Romeel Davé, Thomas J. Cox, Yancy Shirley   +7 more
core   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Coal and gas outburst risk evaluation based on cloud model and D -S theory

Gong-kuang zidonghua, 2020
In view of problems of existing coal and gas outburst risk evaluation models or methods that it is difficult to take into account the uncertainty and ambiguity of evaluation indicators, and the index weights are unreasonable, coal and gas outburst risk ...
YU Liya, ZHAO Yongfang, ZHANG Lingyun, CHEN Guangbo   +3 more
doaj   +1 more source

Kiloparsec-scale star formation law in M81 and M101 based on AKARI far-infrared observations

, 2010
We assess the relationships between the surface densities of the gas and star formation rate (SFR) within spiral arms of the nearby late-type spiral galaxies M81 and M101. By analyzing these relationships locally, we derive empirically a kiloparsec scale
Allen, Bigiel, Brouillet, Calzetti, Chynoweth, Cottrell, Cox, Dale, de Jong, Draine, Elmegreen, Freedman, Gao, Garnett, Gordon, Gordon, H. Kaneda, H. Shibai, Hamajima, Hasegawa, Hildebrand, Kaufman, Kawada, Kenney, Kennicutt, Kennicutt, Kennicutt, Knapen, Li, Lin, Maddalena, Misiriotis, Murakami, Parker, Pilyugin, Prescott, Pérez-González, Rice, Rieke, Rogstad, Rots, Sandage, Santillán, Sauvage, Schmidt, Schuster, Scoville, Scoville, Shirahata, Siebenmorgen, Smith, Suzuki, Suzuki, T. Nakagawa, T. Onaka, T. Suzuki, Taniguchi, Van der Hulst, Wilson   +58 more
core   +1 more source

A diversity of progenitors and histories for isolated spiral galaxies [PDF]

, 2012
We analyze a suite of 33 cosmological simulations of the evolution of Milky Way-mass galaxies in low-density environments. Our sample spans a broad range of Hubble types at z=0, from nearly bulgeless disks to bulge-dominated galaxies.
Bournaud, Frederic, Croton, Darren J., Dekel, Avishai, Martig, Marie, Teyssier, Romain   +4 more
core   +3 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Optimizing Iran's natural gas export portfolio by presenting a conceptual framework for non-systematic risk based on portfolio theory

Energy Strategy Reviews, 2019
Remarkable proven reserves of approximately 1200 trillion cubic feet of natural gas, with an unprecedented growth in global demand, have led Iranian policymakers to look for optimal natural gas export programs.
Ali Nowrouzi, Mostafa Panahi, Hamidreza Ghaffarzadeh, Abtin Ataei   +3 more
doaj   +1 more source

A Polytropic Approach to Semi-relativistic Isothermal Gas Spheres at Arbitrary Temperature

, 2011
We use standard polynomial expansion technique to show the existence of a relation between polytropic model and the description of gas spheres at finite temperature. A numerical analysis is made concerning the obtained perturbative parameters.
Amsler, Chandrasekhar, Chavanis, Chavanis, Claudio M. G. de Sousa, de Sousa, Edwards, Evandro A. de Araujo, Ferrel, Gleiser, Honda, Ingrosso, Kolb, Kusmartsev, Liddle, Merafina, Natarajan, Oppenheimer, Pathria, Portilho, Ruffini, Schunck, Silveira, Wald, Weinberg, Zeldovich   +25 more
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source