Results 91 to 100 of about 5,848,146 (301)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Association between genetically proxied PPARG activation and early onset Alzheimer's disease: A drug target Mendelian randomization study

Journal of Alzheimer's Disease Reports
Background:  Early-onset Alzheimer's disease (EOAD), which has an onset before the age of 65, is overshadowed by the more prevalent late-onset Alzheimer's disease (LOAD).
Lingyu Zhang, Yi Wu, Qianqian Jin, Chunfang Wang   +3 more
doaj   +1 more source

Experimental Sinusitis in a Rhinogenic Model

The Laryngoscope, 2004
AbstractObjectives/Hypothesis: The objectives were to determine the optimal sinusitis induction period and to examine microbiological and histopathological changes of sinusitis recovery stage in a rhinogenic sinusitis model.Methods: A synthetic sponge was inserted into the right‐side nasal cavities of rabbits.
Kara, Cüneyt Orhan, Çetin, Çiğdem Banu, Demirkan, Neşe, Şengül, Mustafa, Topuz, Bülent, Şafak Pinar, H., Pakdemirli, E.   +6 more
openaire   +6 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Efficient experimental designs for sigmoidal growth models [PDF]

For the Weibull- and Richards-regression model robust designs are determined by maximizing a minimum of D- or D1-efficiencies, taken over a certain range of the non-linear parameters.
Dette, Holger, Pepelyshev, Andrey
core  

Local Field effects on the radiative lifetime of emitters in surrounding media: virtual- or real-cavity model?

, 2005
For emitters embedded in media of various refractive indices, different macroscopic or microscopic theoretical models predict different dependencies of the spontaneous emission lifetime on refractive index.
Berman, Bloembergen, Born, Chang-Kui Duan, Crenshaw, de Vries, Kumar, Lamouche, Lavallard, Luks, Meltzer, Michael F. Reid, Rikken, Toptygin, Ushida, Wuister, Zhongqing Wang   +16 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

A Comparison between Electroluminescence Models and Experimental Results

, 2011
Electrical insulation ages and degrades until its eventual failure under electrical stress. One cause of this relates to the movement and accumulation of charge within the insulation.
Baudoin, F, Chen, G, Lewin, P L, Mills, D H   +3 more
core  

Experimental analysis and modeling of orthogonal cutting using material and friction models [PDF]

, 2007
In this study, a process model for orthogonal cutting processes is proposed. The model involves the primary and secondary deformation zones. The primary shear zone is modeled by a Johnson-Cook constitutive relationship and a shear plane having constant ...
Budak, Erhan, Ozlu, Emre, Özlü, Emre
core  

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source