Results 61 to 70 of about 1,196,417 (299)

Interaction Grammars [PDF]

open access: yes, 2008
Interaction Grammar (IG) is a grammatical formalism based on the notion of polarity. Polarities express the resource sensitivity of natural languages by modelling the distinction between saturated and unsaturated syntactic structures.
Bruno Guillaume   +5 more
core   +8 more sources

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Disentangling CO Chemistry in a Protoplanetary Disk Using Explanatory Machine-learning Techniques

open access: yesThe Astrophysical Journal
Molecular abundances in protoplanetary disks are highly sensitive to the local physical conditions, including gas temperature, gas density, radiation field, and dust properties.
Amina Diop   +4 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

ANALISIS PROFIL MODEL MENTAL SISWA SMA PADA MATERI LAJU REAKSI

open access: yesJurnal Penelitian dan Pembelajaran IPA, 2015
The research, entitled "Analysis Students’ Profile Mental Models High School on the rate of reaction" aims to obtain an overview of high school students' mental modelson the rate of reaction.
Yuli Handayanti, Agus Setiabudi, Nahadi
doaj  

PREDICTION OF REACTION CONDITIONS BY DEEP LEARNING TECHNIQUES [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research. The paper presents a study of prediction method for various properties of reactions, such as the type of reaction, suitable groups of solvents, catalysts for the reaction.
Vladimir B. Moskalev, Evgeniy O. Putin
doaj  

Reactivity of OH and CH3OH between 22 and 64 K: Modelling the gas phase production of CH3O in Barnard 1b

open access: yes, 2016
In the last years, ultra-low temperature chemical kinetic experiments have demonstrated that some gas-phase reactions are much faster than previously thought.
Agundez, M.   +7 more
core   +4 more sources

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

open access: yesFEBS 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

Suitability of large language models for extraction of high-quality chemical reaction dataset from patent literature

open access: yesJournal of Cheminformatics
With the advent of artificial intelligence (AI), it is now possible to design diverse and novel molecules from previously unexplored chemical space. However, a challenge for chemists is the synthesis of such molecules.
Sarveswara Rao Vangala   +8 more
doaj   +1 more source

Reaction-Diffusion Processes from Equivalent Integrable Quantum Chains

open access: yes, 1997
One-dimensional reaction-diffusion systems are mapped through a similarity transformation onto integrable (and a priori non-stochastic) quantum chains. Time-dependent properties of these chemical models can then be found exactly.
Albertini   +68 more
core   +1 more source

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