Results 61 to 70 of about 651,839 (318)
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
Experimental investigation of calcium carbonate mineralogy in past and future oceans [PDF]
, 2011 Inorganic marine calcium carbonate formation and mineralogy varies significantly concurrent with the solution composition. During the Phanerozoic, due to oscillations in the seawater composition, this resulted in the formation of either dominantly ...
Bots, Pieter
core
Stable prenucleation mineral clusters are liquid-like ionic polymers [PDF]
, 2011 Calcium carbonate is an abundant substance that can be created in several mineral forms by the reaction of dissolved carbon dioxide in water with calcium ions.
Quigley, David +7 more
core +1 more source
NanomaterialsWhile vanadium-extracted tailings contain valuable components, their utilization is difficult due to their high sodium content. In this work, a new oxygen-pressure calcification and alkaline leaching strategy to achieve barium orthovanadate vanadium ...
Jinwei Qu, Yiqiu Wang, Xinyu Hao, Na Ma
doaj +1 more source
The Depositional Record, 2019 High‐resolution seismic data reveal an unexpected Pleistocene topography underneath the Cat Cay shoal complex along the western margin of Great Bahama Bank, illustrating how Pleistocene topography focuses tidal flow to create different types of ...
Francisco E. G. Cruz, Gregor P. Eberli
doaj +1 more source
FEBS Letters, EarlyView.Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley +1 more source
, 2004 Pliocene limestone formations in central Hawke's Bay (eastern North Island, New Zealand) accumulated on and near the margins of a narrow forearc basin seaway within the convergent Australia/Pacific plate boundary zone.
Nelson, Campbell S. +5 more
core +1 more source
A Model for Predicting Borehole Wall Stability in High Stress Fractured Formations
Zuanjingye yu wanjingyeTo deal with the wellbore collapse and instability problems encountered in drilling the broken marine carbonate formations in Shunbei and western Sichuan, a visual true triaxial wellbore instability physical simulation experimental platform was prepared ...
Weiji WANG, Dujie ZHANG
doaj +1 more source
Genetic types and distinguished characteristics of dolomite and the origin of dolomite reservoirs
Petroleum Exploration and Development, 2018 To find out the origin of dolomite, the precipitation of primary dolomite, and the formation of pores in dolomite, petrologic and geochemical characteristics of typical samples from Sichuan and Tarim Basin were analyzed based on the previous ...
Wenzhi ZHAO +5 more
doaj +1 more source
Discovery of the deep-sea NEOM Brine Pools in the Gulf of Aqaba, Red Sea
Communications Earth & Environment, 2022 The sedimentary signals of climatic and tectonic events are preserved in pristine condition by the hypersaline environment within brine pools discovered by remote observations, and core and brine sampling, in the Gulf of Aqaba, off the Saudi Arabian ...
Sam J. Purkis +16 more
doaj +1 more source