Results 41 to 50 of about 255,270 (305)
, 2012 We upgraded the chemical network from the UMIST Database for Astrochemistry 2006 to include isotopes such as ^{13}C and ^{18}O. This includes all corresponding isotopologues, their chemical reactions and the properly scaled reaction rate coefficients. We
Ossenkopf, V., Röllig, M.
core +1 more source
AgronomyAdopting an optimal cropping regime is crucial for sustainable soil use. However, how different cropping regimes impact phosphorus (P) availability and the underlying mechanism remain unclear. Here, a 10-year field experiment was performed to examine the
Yidan Geng +7 more
doaj +1 more source
Structure II gas hydrates found below the bottom‐simulating reflector
Geophysical Research Letters, 2016 Gas hydrates are a major component in the organic carbon cycle. Their stability is controlled by temperature, pressure, water chemistry, and gas composition.
M. Paganoni +4 more
doaj +1 more source
The Organic Matter of Chernozem
Бюллетень Почвенного института им. В.В. Докучаева, 2017 Theories and points of view of soil science classics, such as V. V. Dokuchaev, I. V. Turin and M. M. Kononva on chernozem organic matter are reviewed in this work.
B. M. Kogut
doaj +1 more source
NOVEL STUDY FOR CHEMICAL COMPOSITION OF AL-AHDAB CRUDE OIL [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2017 Thisn research included determination of chemical composition of al-ahdaab crude oil (kute- Iraq) using liquid – solid chromatography. The current researched included to separation the component of crude oil by column chromatography was packing with ...
Tariq A. Al-Ani +2 more
doaj +1 more source
Peroxyacetic Acid Pretreatment: A Potentially Promising Strategy towards Lignocellulose Biorefinery
Molecules, 2022 The stubborn and complex structure of lignocellulose hinders the valorization of each component of cellulose, hemicellulose, and lignin in the biorefinery industries.
Mingyang Hu +3 more
doaj +1 more source
Chemical fractionation of deuterium in the protosolar nebula
, 2017 Understanding gas-grain chemistry of deuterium in star-forming objects may help to explain their history and present state. We aim to clarify how processes in ices affect the deuterium fractionation.
Hocuk, S. +3 more
core +1 more source
The Chemical Fractionation of Rabbit and Swine Thymus [PDF]
The Journal of Cell Biology, 1957 A chemical fractionation procedure, previously found applicable to bovine thymus and bovine and ovine palatine tonsils, was used to fractionate rabbit and hog thymus. With respect to the chemical fractionation steps, yields of fractions, and optical and electrophoretic properties, extracts from hog and rabbit thymus were indistinguishable from similar ...
E L, HESS, S E, LAGG
openaire +2 more sources
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
Barium isotopic fractionation during strong weathering of basalt in a tropical climate
Environment International, 2020 Barium (Ba) is an element which is toxic to humans, plants, and animals. Deciphering the geochemical behavior of Ba in soils is fundamental for assessing the potentials risks posed by Ba. Ba isotopes are a potentially robust tracer of Ba in soils.
Yingzeng Gong +6 more
doaj +1 more source