Results 41 to 50 of about 3,017,654 (306)

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

HYDROGEN MOLECULE INTERACTION WITH CpCr(CO)3 CATALYST [PDF]

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2013
The hydrogen molecule interaction with CpCr (CO)3 catalyst has been studied using the B3LYP, B86 functionals and the 6-311++G** , LACV3P basis sets. The best results in the testing calculations of the analyzed reaction have been obtained by using the
T. Spataru, F. Fernandez
doaj  

Reaction mechanisms involved in the production of neutron-rich isotopes

open access: yes, 2003
The reaction mechanisms best suited for the production of neutron-rich nuclei, fragmentation and fission, are discussed. Measurements of the production cross sections of reaction residues together with model calculations allow to conclude about the ...
Benlliure, J.   +3 more
core   +1 more source

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

open access: yesFEBS 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

$\Lambda(1405)$ production in the $\pi^-p\to K^0\pi\Sigma$ reaction

open access: yes, 2003
We discuss the mechanisms that lead to $\Lambda(1405)$ production in the $\pi^-p\to K^0\pi\Sigma$ reaction. The problem has gained renewed interest after different works converge to the conclusion that there are two resonances around the region of 1400 ...
A. Hosaka   +6 more
core   +2 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Advances in the development and characterization of combustible cartridge cases and propellants: Preparation, performance, and future prospects

open access: yesReviews on Advanced Materials Science
This study presents a comprehensive analysis of combustible cartridge cases (CCCs) and propellants with a focus on their preparation methods, characterization techniques, and application in modern weaponry.
Wu Mengde, Xiao Zhenggang
doaj   +1 more source

Reaction Pathways Based on the Gradient of the Mean First-Passage Time

open access: yes, 2002
Finding representative reaction pathways is necessary for understanding mechanisms of molecular processes, but is considered to be extremely challenging. We propose a new method to construct reaction paths based on mean first-passage times. This approach
Deyu Lu   +4 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Heterogeneous Photocatalytic Dehydrogenative Cross‐Coupling and Addition Reaction with Metal‐Loaded Titanium Oxide Photocatalysts

open access: yesAdvanced Energy & Sustainability Research
Heterogeneous photocatalytic reactions begin with photoexcitation, followed by simultaneous reduction and oxidation processes that generate radical intermediates.
Hisao Yoshida
doaj   +1 more source

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