Results 61 to 70 of about 3,511,004 (300)

A multi-epoch spectroscopic study of the BAL quasar APM 08279+5255: I. C IV absorption variability [PDF]

, 2013
Broad Absorption Lines indicate gas outflows with velocities from thousands km/s to about 0.2 the speed of light, which may be present in all quasars and may play a major role in the evolution of the host galaxy.
Paris, D., Perna, M., Saturni, F. G., Trevese, D., Turriziani, S., Vagnetti, F.   +5 more
core   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Individual use of self-medication and other remedies in COVID-19 outpatients in Western-Pomerania

Scientific Reports
We analyzed data from positively tested COVID-19 outpatients to describe self-medication with OTC drugs and use of other remedies against symptoms of SARS-CoV-2 infection.
Svea Stüdemann, Eik Schäfer, Klaus Hahnenkamp, Mladen V. Tzvetkov, Stefan Engeli   +4 more
doaj   +1 more source

Exopeptidase combination enhances the degradation of isotopically labelled gluten immunogenic peptides in humans

Frontiers in Immunology
IntroductionCeliac disease is a common autoimmune-like enteropathy caused by an aberrant response to incompletely digested dietary gluten. Gluten immunogenic peptides including the immunodominant 33-mer are thought to be resistant to proteolytic ...
Sulayman Mourabit, Sarah Römer, Erin R. Bonner, Fabian Winter, Julian Tschollar, Mladen V. Tzvetkov, Werner Weitschies, Stefan Engeli, Werner Tschollar   +8 more
doaj   +1 more source

Nonadiabatic approach to dimerization gap and optical absorption coefficient of the Su-Schrieffer-Heeger model

, 2002
An analytical nonadiabatic approach has been developed to study the dimerization gap and the optical absorption coefficient of the Su-Schrieffer-Heeger model where the electrons interact with dispersive quantum phonons.
A. Takahashi, A.J. Heeger, B. Friedman, B.R. Weinberger, C.N. Yang, C.N. Yang, C.R. Fincher, C.S. Yannoni, D. Baranowski, D. Moses, D. Schmeltzer, E. Fradkin, E. Jeckelmann, G. Minton, H. Takayama, H. Zheng, H. Zheng, H. Zheng, J. Ashkanazi, J. Jiang, J. Ma, J. Solyom, J. Voit, J. Yu, J.E. Hirsch, J.M. Ginder, J.T. Gammel, K. Harigaya, K. Kim, K. Maki, K. Nasu, L.G. Caron, M. Nakahara, M.J. Rice, N. Suzuki, P. Brüesch, P.M. Grant, Q. Wang, R.H. McKenzie, R.P. McCall, S. Etemad, S. Ichinose, S. Kivelson, T. Holstein, W.K. Wu, W.P. Su, W.P. Su, W.P. Su, X.G. Wan, Y. Zou, Y. Zou, Z.B. Su   +51 more
core   +1 more source

Physical absorption of CO2 and propene into toluene/water emulsions [PDF]

, 1994
The physical absorption of CO2 and propene into toluene/water emulsions is studied in a stirred cell and laminar film absorber. Experimentally observed masstransfer rates are compared to an absorption model, based on Higbie's penetration theory ...
Littel, R.J., Littel, R.J., van Swaaij, Willibrordus Petrus Maria, Versteeg, Geert   +3 more
core   +3 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

MR imaging of model drug distribution in simulated vitreous

Current Directions in Biomedical Engineering, 2015
The in vitro and in vivo characterization of intravitreal injections plays an important role in developing innovative therapy approaches. Using the established vitreous model (VM) and eye movement system (EyeMoS) the distribution of contrast agents with ...
Stein Sandra, Simroth-Loch Christian, Langner Sönke, Hadlich Stefan, Stachs Oliver, Grabow Niels, Guthoff Rudolf, Weitschies Werner, Seidlitz Anne   +8 more
doaj   +1 more source

Investigation of nonlinear absorption processes with femtosecond light pulses in lithium niobate crystals [PDF]

, 2005
The propagation of high-power femtosecond light pulses in lithium niobate crystals (LiNbO3) is investigated experimentally and theoretically in collinear pump-probe transmission experiments.
Beyer, O., Buse, K., Hsieh, H. T., Maxein, D., Psaltis, D., Sturman, B.   +5 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source