Results 41 to 50 of about 463,636 (339)

PAHs in protoplanetary disks: emission and X-ray destruction [PDF]

, 2012
We study the PAH emission from protoplanetary disks. First, we discuss the dependence of the PAH band ratios on the hardness of the absorbed photons and the temperature of the stars.
Acke, Acke, Armitage, Asplund, Augereau, Baes, Bianchi, Bjorkman, Chase, Chiang, Compiegne, Doucet, Draine, Draine, Dullemond, Dwek, Ercolano, F. Heymann, Fleck, Galliano, Geers, Gordon, Guhathakurta, Habart, Hayashi, Heymann, Jayawardhana, Juvela, Keller, Krijt, Lagage, Lucy, Mathis, Mattioda, Mattioda, Min, Min, Miroshnichenko, Misselt, Peeters, Preibisch, R. Siebenmorgen, Robitaille, Robitaille, Salama, Schräpler, Schutte, Sellgren, Siebenmorgen, Siebenmorgen, Siebenmorgen, Siebenmorgen, Siebenmorgen, Siebenmorgen, Stelzer, Tielens, Uchida, van den Ancker, Vinkovic, Youdin, Zubko   +60 more
core   +1 more source

Entropy, Graph Homomorphisms, and Dissociation Sets

Entropy, 2023
Given two graphs G and H, the mapping of f:V(G)→V(H) is called a graph homomorphism from G to H if it maps the adjacent vertices of G to the adjacent vertices of H.
Ziyuan Wang, Jianhua Tu, Rongling Lang
doaj   +1 more source

A model for pH determination during alcoholic fermentation of a grape must by Saccharomyces cerevisiae [PDF]

, 2008
A model to predict accurately pH evolution during alcoholic fermentation of must by Saccharomyces cerevisiae is proposed for the first time. The objective at least is to determine if the pH measurement could be used for predictive control.
Akin, Huberson, Brandam, Cédric, Meyer, Xuân-Mi, Strehaiano, Pierre   +3 more
core   +1 more source

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Blood Flow and Glucose Metabolism Dissociation in the Putamen Is Predictive of Levodopa Induced Dyskinesia in Parkinson's Disease Patients

Frontiers in Neurology, 2019
Background: The forefront treatment of Parkinson's disease (PD) is Levodopa. When patients are treated with Levodopa cerebral blood flow is increased while cerebral metabolic rate is decreased in key subcortical regions including the putamen.
Maram Aljuaid, Maram Aljuaid, Samuel Booth, Samuel Booth, Douglas E. Hobson, Andrew Borys, Kelly Williams, Audrey Katako, Audrey Katako, Lawrence Ryner, Andrew L. Goertzen, Ji Hyun Ko, Ji Hyun Ko   +12 more
doaj   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Quantum atom optics with fermions from molecular dissociation [PDF]

, 2006
We study a fermionic atom optics counterpart of parametric down-conversion with photons. This can be realized through dissociation of a Bose-Einstein condensate of molecular dimers consisting of fermionic atoms.
D. F. Walls, K. V. Kheruntsyan, R. Hanbury Brown   +2 more
core   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Attosecond control of electron dynamics in carbon monoxide

, 2009
Laser pulses with stable electric field waveforms establish the opportunity to achieve coherent control on attosecond timescales. We present experimental and theoretical results on the steering of electronic motion in a multi-electron system. A very high
de Vivie-Riedle, R., Herrwerth, O., Hoff, P. von den, Kling, M. F., Vrakking, M. J. J., Wirth, A., Zherebtsov, S., Znakovskaya, I.   +7 more
core   +1 more source

Radiolysis of ammonia-containing ices by energetic, heavy and highly charged ions inside dense astrophysical environments [PDF]

, 2009
Deeply inside dense molecular clouds and protostellar disks, the interstellar ices are protected from stellar energetic UV photons. However, X-rays and energetic cosmic rays can penetrate inside these regions triggering chemical reactions, molecular ...
Balanzat, E., Boduch, P., da Silveira, E. F., Domaracka, A., Duarte, E. Seperuelo, Pilling, S., Rothard, H.   +6 more
core   +3 more sources