Results 61 to 70 of about 104,482 (285)

Dynamic disorder in simple enzymatic reactions induces stochastic amplification of substrate [PDF]

open access: yes, 2017
A growing amount of evidence points to the fact that many enzymes exhibit fluctuations in their catalytic activity, which are associated with conformational changes on a broad range of timescales. The experimental study of this phenomenon, termed dynamic
Gupta, Ankit   +2 more
core   +2 more sources

Generalized Stern-Gerlach Effect for Chiral Molecules [PDF]

open access: yesPhysical Review Letters, 2007
The Stern-Gerlach effect is well-known as spin-dependent splitting of a beam of atoms with magnetic moments by a magnetic-field gradient. Here, we show that an induced gauge potential may lead to a similar effect for chiral molecules. In the presence of three inhomogeneous light fields, the center-of-mass of a three-level chiral molecule is subject to ...
Li, Yong, Bruder, C., Sun, C. P.
openaire   +4 more sources

Generating Flavor Molecules Using Scientific Machine Learning

open access: yesACS Omega, 2023
النكهة هي عنصر أساسي في تطوير العديد من المنتجات في السوق. أدى الاستهلاك المتزايد للوجبات المصنعة والسريعة والأغذية المعبأة الصحية إلى زيادة الاستثمار في عوامل النكهة الجديدة وبالتالي في الجزيئات ذات خصائص النكهة. في هذا السياق، يطرح هذا العمل نهجًا علميًا للتعلم الآلي (SciML) لتلبية هذه الحاجة إلى هندسة المنتج.
Luana P. Queiroz   +7 more
openaire   +3 more sources

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel   +3 more
wiley   +1 more source

Coal as an energy source and its impacts on human health

open access: yesEnergy Geoscience, 2021
Attempts to secure more energy, food, and infrastructure leave a trail of environmental contamination and human health hazards. Coal is a fossil fuel and nonrenewable energy source that is combusted and used to generate electricity.
Juciano Gasparotto   +1 more
doaj   +1 more source

Origins of concentration dependence of waiting times for single-molecule fluorescence binding

open access: yes, 2012
Binary fluorescence time series obtained from single-molecule imaging experiments can be used to infer protein binding kinetics, in particular, association and dissociation rate constants from waiting time statistics of fluorescence intensity changes. In
Pearson, John E., Yang, Jin
core   +1 more source

Optimal control of multiscale systems using reduced-order models [PDF]

open access: yes, 2014
We study optimal control of diffusions with slow and fast variables and address a question raised by practitioners: is it possible to first eliminate the fast variables before solving the optimal control problem and then use the optimal control computed ...
Hartmann, Carsten   +3 more
core   +5 more sources

Learned Feature Generation for Molecules [PDF]

open access: yes, 2018
When classifying molecules for virtual screening, the molecular structure first needs to be converted into meaningful features, before a classifier can be trained. The most common methods use a static algorithm that has been created based on domain knowledge to perform this generation of features. We propose an approach where this conversion is learned
Winter, Patrick   +2 more
openaire   +2 more sources

Drug transport mechanism of P-glycoprotein monitored by single molecule fluorescence resonance energy transfer

open access: yes, 2011
In this work we monitor the catalytic mechanism of P-glycoprotein (Pgp) using single-molecule fluorescence resonance energy transfer (FRET). Pgp, a member of the ATP binding cassette family of transport proteins, is found in the plasma membrane of animal
Boersch, Michael   +4 more
core   +1 more source

Retrieval-based Controllable Molecule Generation

open access: yes, 2022
Generating new molecules with specified chemical and biological properties via generative models has emerged as a promising direction for drug discovery. However, existing methods require extensive training/fine-tuning with a large dataset, often unavailable in real-world generation tasks.
Wang, Zichao   +5 more
openaire   +2 more sources

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