Results 51 to 60 of about 966,339 (212)

Historical Agricultural Landforms—Central European Bio-Cultural Heritage Worthy of Attention

open access: yesLand, 2022
Knowledge about past agricultural land management can bring solutions for future needs. One undervalued historical type of historical rural landscape in temperate Europe is termed plužiny.
Johana Zacharová   +9 more
doaj   +1 more source

A ribose-functionalized NAD+ with unexpected high activity and selectivity for protein poly-ADP-ribosylation. [PDF]

open access: yes, 2019
Nicotinamide adenine dinucleotide (NAD+)-dependent ADP-ribosylation plays important roles in physiology and pathophysiology. It has been challenging to study this key type of enzymatic post-translational modification in particular for protein poly-ADP ...
Chen, Jingwen   +9 more
core   +1 more source

NAD-seq for profiling the NAD+ capped transcriptome of Arabidopsis thaliana

open access: yesSTAR Protocols, 2021
Eukaryotic RNAs can be modified with a non-canonical 5' nicotinamide adenine dinucleotide (NAD+) cap. NAD-seq identifies transcriptome-wide NAD+ capped RNAs. NAD-seq takes advantage of click chemistry to allow the capture of NAD+ capped RNAs. Unlike other approaches, NAD-seq does not require DNA synthesis on beads, but this technique uses full NAD ...
Xiang Yu   +2 more
openaire   +3 more sources

Intestinal Fut2 deficiency exacerbated alcohol‐related liver disease by disrupting nicotinamide metabolism

open access: yesClinical and Translational Medicine, Volume 15, Issue 8, August 2025.
Loss of intestinal epithelial fucosylation exacerbates alcohol‐related liver injuries. Intestinal epithelial deletion of Fut2 disrupts nicotinamide (NAM) metabolism due to the decline in bacterial nicotinamidase (PncA). Supplemented with pncA overexpressed E.coli to restore gut PncA levels can improve liver damage in alcohol‐induced intestinal ...
Liuying Chen   +9 more
wiley   +1 more source

Design and Synthesis of New Sulfonic Acid Functionalized Ionic Liquids as Catalysts for Esterification of Fatty Acids with Bioethanol

open access: yesMolecules, 2023
In this study, three types of sulfonic acid group functionalized ionic liquids (SAILs) with a different number of catalytic groups and lipophilicity were synthesized and characterized by FT-IR, NMR, and MS analyses.
Thu Huong Nguyen Thi   +5 more
doaj   +1 more source

Impurity effect on low-temperature polarisation of the charge-density-waves in o-TaS$_3$

open access: yes, 1998
The temperature dependence of the low-temperature dielectric response is studied in o-TaS$_3$ samples doped by Nb, Se, and Ni and for nominally pure ones.
Baklanov   +21 more
core   +1 more source

Global economy knows no borders [PDF]

open access: yes, 2015
Artykuł naukowy „Global economy knows no borders” jest podsumowaniem wystąpienia profesora Marka Belki podczas konferencji naukowej “2014 – New Opportunities for Japan – V-4 Cooperation” zorganizowanej przez Wydział Socjologiczno-Ekonomiczny Uniwersytetu
Belka, Marek
core   +1 more source

Maternal Circulatory NAD Precursor Levels and the Yolk Sac Determine NAD Deficiency‐Driven Congenital Malformation Risk

open access: yesThe FASEB Journal, Volume 39, Issue 14, 31 July 2025.
Maternal circulatory L‐tryptophan (TRP) and nicotinamide (NAM) levels are proportional to dietary TRP intake. Yolk sacs, but not embryos, perform NAD de novo synthesis. This study explores the exchange of NAD precursors between mother and conceptus, and NAD generation in conceptal tissues via the NAD de novo synthesis (blue) or salvage (red) pathways ...
Kayleigh Bozon   +6 more
wiley   +1 more source

Gut Microbiota in Primary Sarcopenia: Mechanisms and Potential Therapeutic Targets

open access: yesFrontiers in Bioscience-Landmark
As the global population ages, the risks associated with primary sarcopenia, including falls, fractures, functional decline, and frailty, are becoming increasingly apparent, all of which significantly impair the quality of life in older adults.
Leshan Chen   +6 more
doaj   +1 more source

Structural dynamic modification of circular disc using pre-stressed fields

open access: yesResearch in Agricultural Engineering, 2005
Dynamical properties of circular discs are investigated in this paper. One of the techniques of the disc modifications to achieve the required dynamic properties is to initiate pre-stress in disc plane.
M. Naď
doaj   +1 more source

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