Results 51 to 60 of about 1,168,560 (301)

Comprehensive analysis of iron utilization by Mycobacterium tuberculosis

open access: yesPLOS Pathogens, 2020
Iron is essential for nearly all bacterial pathogens, including Mycobacterium tuberculosis (Mtb), but is severely limited in the human host. To meet its iron needs, Mtb secretes siderophores, small molecules with high affinity for iron, and takes up iron-loaded mycobactins (MBT) and carboxymycobactins (cMBT), from the environment.
Lei Zhang   +5 more
openaire   +4 more sources

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Mechanism and Application of High-efficiency Collector MY-1 for Lead-zinc Separation

open access: yesKuangchan zonghe liyong
[Objective]The main useful minerals in a mine (Guangxi) are jamesonite and marmatite. When using conventional collector, lime is needed to separate lead from zinc at high alkaline condition, and the selectivity of agent is poor in the presence of high ...
Xiong CHEN   +4 more
doaj   +1 more source

Microscopic Pore Structure Characteristics and Methane Adsorption of Vitrain and Durain

open access: yesGeofluids, 2020
During reservoir evaluation, the microscopic pore structure of low-rank coal is mainly characterized in order to study the coalbed methane diffuse and migration mechanisms and control. The low-rank coals are very different in pore type and size, so it is
Fu Yang   +5 more
doaj   +1 more source

Characterization of the complete chloroplast genome sequence of Limnophila sessiliflora Blume 1826 (Plantaginaceae)

open access: yesMitochondrial DNA. Part B. Resources, 2023
Limnophila sessiliflora Blume 1826 is a perennial amphibious herb with ornamental and water purification value that is widespread in temperate and tropical Asia.
Hongjin Dong   +3 more
doaj   +1 more source

Overview of Global Vanadium-titanium Magnetite Resources and Comprehensive Utilization

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of mineral engineering. This paper summarizes the distribution of vanadium titanium magnetite in the world and its comprehensive utilization progress.
Yaohui Yang   +4 more
doaj   +1 more source

Complex railway systems: capacity and utilisation of interconnected networks [PDF]

open access: yes, 2016
Introduction Worldwide the transport sector faces several issues related to the rising of traffic demand such as congestion, energy consumption, noise, pollution, safety, etc.
Malavasi, Gabriele   +2 more
core   +1 more source

Survival Outcomes and Complications Among Canadian Children With Retinoblastoma: A Population‐Based Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine   +14 more
wiley   +1 more source

Initial pyrolysis mechanism and product formation of cellulose: An Experimental and Density functional theory(DFT) study

open access: yesScientific Reports, 2020
In this paper, analytical pyrolyzer coupled with a gas chromatography–mass spectrometry set-up (Py-GC/MS) and density functional theory(DFT) theory was used to reveal the initial pyrolysis mechanism and product formation mechanism of cellulose pyrolysis.
Qing Wang   +5 more
doaj   +1 more source

Recovery of Ilmenite from an Ultrafine Fine Particle Material in Panxi

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of mineral processing engineering. This study conducted a test study on the recovery of Ilmenite from an Ultrafine Fine Particle Material in Panxi, determined the overall process flow of strong magnetic preconcentration ...
Jian Deng   +4 more
doaj   +1 more source

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