Results 61 to 70 of about 255,270 (305)

Survey of ortho-H2D+(1_{1,0}-1_{1,1}) in dense cloud cores [PDF]

open access: yes, 2008
We present a survey of the ortho-H2D+(1_{1,0}-1_{1,1}) line toward a sample of 10 starless cores and 6 protostellar cores, carried out at the Caltech Submillimeter Observatory.
A. Bacmann   +149 more
core   +7 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Properties of vegetable oils modified by hydrogenation, interesterification and fractionation

open access: yesGrasas y Aceites, 1992
The advent of techniques of chemical processing (hydrogenation and interesterification) and physical processing (fractionation) provides the manufacturer the capacity of modifying one or many physicochemical properties of an oil or fat.
M. A. Grompone
doaj   +1 more source

Characteristics of Soil Chemical Properties Associated with Inceptisols in Various Land Use in Jasinga, Bogor

open access: yesJournal of Tropical Soils, 2023
Inceptisols are soils with low to moderate fertility and have not experienced further development. This study aims to characterize the chemical properties of inclusions and base exchange fractionation of P of soil on Inceptisol soil map units of forest ...
Erlina Rahmayuni   +3 more
doaj   +1 more source

Fractional model of the chemical inductor

open access: yesChaos, Solitons & Fractals, 2023
This work was supported by Universidad Rey Juan Carlos, project number M2993.
openaire   +2 more sources

Nitrogen isotopic ratios in Barnard 1: a consistent study of the N2H+, NH3, CN, HCN and HNC isotopologues

open access: yes, 2013
The 15N isotopologue abundance ratio measured today in different bodies of the solar system is thought to be connected to 15N-fractionation effects that would have occured in the protosolar nebula.
Biver, N.   +9 more
core   +3 more sources

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

Distribution of Phosphorus Forms Along the Altitude Gradient in the Soil of the Qinghai–Tibetan Plateau and the Influencing Factors

open access: yesAgronomy
Phosphorus (P) is a key limiting nutrient in alpine meadows. Analyzing the spatial distribution of soil P and its forms along altitudinal gradients is crucial to understand soil nutrient cycling and sustain productivity under climate change.
Zhiyuan Cao   +6 more
doaj   +1 more source

Adaptation of the methodology for sequential five-step fractionation of elements from bottom sediments of lake Imandra [PDF]

open access: yesBIO Web of Conferences
A series of experiments was carried out to adapt the technique of five-stage sequential fractionation of elements from soils, silts and bottom sediments (on the example of bottom sediments of Lake Imandra).
Velieva Edae   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy