Results 61 to 70 of about 5,905 (229)

Seasonal and Inter-Annual Variations of Stable Isotopic Characteristics of Rainfall and Cave Water in Shennong Cave, Southeast China, and Its Paleoclimatic Implication

open access: yesFrontiers in Earth Science, 2021
Speleothem calcite stable oxygen isotope (δ18OC) is one of the most widely used proxies in paleoclimate research, and understanding its seasonal-annual variability is very significant for palaeoclimate reconstruction.
Ye Tian   +9 more
doaj   +1 more source

Molecular cloning of the gene for 2,6-β-d-fructan 6-levanbiohydrolase fromStreptomyces exfoliatusF3-2 [PDF]

open access: yesFEMS Microbiology Letters, 2003
The gene encoding a 2,6-beta-D-fructan 6-levanbiohydrolase (LF2ase) (EC 3.2.1.64) that converts levan into levanbiose was cloned from the genomic DNA of Streptomyces exfoliatus F3-2. The gene encoded a signal peptide of 37 amino acids and a mature protein of 482 amino acids with a total length of 1560 bp and was successfully expressed in Escherichia ...
Katsuichi, Saito   +3 more
openaire   +2 more sources

The C‐terminal domain of yeast Arginyltransferase1 is essential for its catalytic activity

open access: yesFEBS Open Bio, EarlyView.
Arginyltransferase 1 (Ate1), a eukaryotic enzyme, catalyses arginylation, transferring arginine from tRNA‐Arg to the amino terminus of the target protein. Overexpression of Ate1 in yeast is lethal and is dependent on arginylation. This study elucidates how mutations in the cofactor‐binding and active site of Ate1 and truncation of its structural ...
Vikas Kumar Yadav   +4 more
wiley   +1 more source

δD of organic matter and extracted water of plant and insect tissues are linearly correlated to δD of irrigation water.

open access: yes, 2013
(a) The δD values of the organic matter of plants (solid triangles, dotted line), caterpillars (plus ‘+’ signs, barred-dotted line), and moths (open circles, barred line) increased linearly with the δD value of irrigation water (yplant = 0.59x−107.5, r2 =
Craig A. Stricker (328065)   +4 more
core   +1 more source

Satellite-Based Distribution of Inverse Altitude Effect of Global Water Vapor Isotopes: Potential Influences on Isotopes in Climate Proxies

open access: yesRemote Sensing, 2023
The widely-distributed altitude effect of stable isotopes in meteoric water, i.e., the negative correlation between stable hydrogen (or oxygen) isotope compositions and altitude, is the theoretical basis of isotope paleoaltimetry in climate proxies ...
Gahong Yang   +5 more
doaj   +1 more source

Potensi Farmakokinetika dan Toksisitas Benzyl β-D-Glucoside dari Piper crocatum: Studi In Silico

open access: yesJournal Syifa Sciences and Clinical Research
Medicinal plants have become a source of bioactive compounds that are effective in treating various types of diseases, one of the Indonesian plants commonly used in traditional medicine is the red betel plant (Piper crocatum). The red betel plant (Piper crocatum) is included in the Piperaceae family which contains chemicals with properties specifically
Anjas Wilapangga   +3 more
openaire   +1 more source

Cloning and expression of the plasmid encoded β-d-galactosidase gene from aLactobacillus plantarumstrain of dairy origin [PDF]

open access: yesFEMS Microbiology Letters, 1994
The beta-galactosidase (beta-Gal) gene from Lactobacillus plantarum C3.8 was cloned and expressed in Lactococcus lactis and Escherichia coli. Hybridization experiments indicated that the gene is located on a plasmid and is present in other strains of Lactobacillus plantarum. Its sequence is very similar to a Leuconostoc lactis beta-Gal gene. Expression
B, Mayo   +3 more
openaire   +2 more sources

Deep Learning Pose Estimation for Phenotyping of Co‐Occurring Hyperkinetic Movement Disorders

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore whether routine outpatient video combined with deep learning‐based pose estimation and clinically interpretable kinematic features can support multi‐label phenotyping of co‐occurring hyperkinetic movement disorders (HMDs).
Laura Cif   +17 more
wiley   +1 more source

Climatic significance of δD variations in a tropical tree species from India [PDF]

open access: yes, 1989
The climatic significance of the stable-isotope ratio of hydrogen (δD) in tree cellulose has been demonstrated using data mainly from coniferous trees that grew in temperate climates.
R. Ramesh   +5 more
core   +1 more source

The origin of fresh glass in phreatic eruptions at Rincón de la Vieja and Turrialba volcanoes, Costa Rica

open access: yesVolcanica
Despite involving no fresh magma, phreatic eruptions are increasingly found to contain juvenile material. This study seeks to determine whether the glass is the result of an input of new magma or shallow stalled magma passively entrained.
Emily Mick, Geoffroy Avard, John Stix
doaj   +1 more source

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