Results 101 to 110 of about 9,487,850 (308)

The Importance of Metal‐Organic Framework Linker Atoms for CO2 Reduction: A DFT Study

Advanced Science, EarlyView.
Using DFT, we examine the role of linker atoms in CO2 reduction on copper‐based metal organic frameworks (Cu MOFs). Our calculations reveal that linker atoms may serve as both CO2 and H‐shuttling sites and suggest linker electrostatics as a descriptor for linker activity. ABSTRACT Although the metal within the secondary building unit of a metal‐organic
Ugochukwu Nwosu, Samira Siahrostami
wiley   +1 more source

Study on the Reaction Mechanism of RuOx and Its Enhanced Hydrogen Evolution Reaction Activity

Advanced Science, EarlyView.
In situ Raman spectroscopy and DFT calculations reveal that, prior to the onset of HER, the surface of RuOx undergoes reversible reduction and structural reconstruction. The resulting Ru(II)O/Ru(IV)O2 configuration is identified as the true catalytically active species.
Liquan Zhang, Haobo Dong, Jianrui Feng, Longxiang Liu, Fei Guo, Liqun Kang, Guoliang Chai, Mohamed A. Ghanem, Xinde Chen, Ivan P. Parkin   +9 more
wiley   +1 more source

Casing drilling and modeling of smear effect [PDF]

, 2012
textLost circulation and wellbore failure are common problems in the petroleum industry and they increase drilling costs dramatically. Casing drilling in depleted zones helps reduce drilling costs and problems related to lost circulation and wellbore ...
Arlanoglu, Cagdas
core   +1 more source

Tuberculosis control in a South African community with high HIV prevalence: the role of intensified case-finding and antiretroviral therapy [PDF]

This thesis investigates active TB case finding and antiretroviral therapy for tuberculosis control in a setting with high HIV prevalence in Cape Town, South Africa.
Kranzer, Katharina
core   +1 more source

SOX5 Orchestrates Malignant Evolution via Promoter‐Centric Chromatin Remodeling in MYC‐Driven B‐Cell Lymphoma

Advanced Science, EarlyView.
In MYC‐enforced B‐cell lymphoma, SOX5 occupies promoter‐proximal regulatory regions and is associated with reduced chromatin accessibility at the PCNP locus. PCNP repression promotes proliferative remodeling by limiting apoptosis and cell‐cycle restraint.
Yiyou Mao, Zhenyuan Jia, Xiao‐Qin Mu, Ruilin Wang, Jianli Ma, Qingyuan Zhang, Yuwei Deng   +6 more
wiley   +1 more source

Comparative evaluation of efficacy of ethylenediaminetetraacetic acid, maleic acid, and dimercaptosuccinic acid against the combination of these with sodium hypochlorite for removal of smear layer: An in vitro scanning electron microscope study

Contemporary Clinical Dentistry, 2016
Context: The effect of dimercaptosuccinic acid (DMSA) and maleic acid (MA) when used alone on smear layer has been evaluated with mixed results, but their effect when combined with sodium hypochlorite (NaOCl) has not been studied.
Rishikesh Meshram, Nikhil Sathawane, Roshan Samuel, Narayan Gunaji Jibhkate, Hitesh Gyanani, Sanjay Patil   +5 more
doaj   +1 more source

Rapid and Accurate Detection of Mycobacterium tuberculosis in Sputum Samples by Cepheid Xpert MTB/RIF Assay-A Clinical Validation Study [PDF]

, 2011
Background: A crucial impediment to global tuberculosis control is the lack of an accurate, rapid diagnostic test for detection of patients with active TB.
Perkins, M., Saathoff, E., Elmar Saathoff, Huggett, J, Zumla, A, Saathoff, E, Rojas-Ponce Gabriel, Andrea Rachow, Reither, K, Mtafya, Bariki, Huggett, J., Klaus Reither, Norbert Heinrich, Heinrich Norbert, Hoelscher Michael, Perkins Mark, Saathoff, Elmar, Mark Perkins, Mtafya, B, Boehme, C, Ntinginya, Elias N., Elias N. Ntinginya, O'Grady, J, Zumla Alimuddin, Saathoff Elmar, O'Grady, Justin, Catharina Boehme, Dheda, Keertan, Boehme Catharina, Ntinginya, EN, Dheda, K., Huggett Jim, Boehme, C., Rachow, A., Elias N Ntinginya, Jim Huggett, Dheda, K, Heinrich, N, Hoelscher, M., Keertan Dheda, Rojas-Ponce, G, Perkins, Mark, Hoelscher, Michael, Mtafya Bariki, Rachow, Andrea, Michael Hoelscher, Heinrich, N., Mtafya, B., Gabriel Rojas-Ponce, Rojas-Ponce, Gabriel, Boehme, Catharina, Perkins, M, Zumla, A., Reither, K., Rachow, A, Bariki Mtafya, Rojas-Ponce G.,, Reither, Klaus, Hoelscher, M, O'Grady J.,, Huggett, Jim, Ntinginya, E. N., O'Grady Justin, Heinrich, Norbert, Rachow Andrea, Reither Klaus, Zumla, Alimuddin, Dheda Keertan, Justin O'Grady, Ntinginya Elias N., Alimuddin Zumla   +70 more
core   +1 more source

Development and Applications of a Magnetism‐Aware General‐Purpose Atomic Cluster Expansion Potential for the Fe‐O‐H Ternary System

Advanced Science, EarlyView.
Hydrogen‐driven iron oxide reduction, water‐iron corrosion, and hydrogen embrittlement of metallic iron share the same Fe‐O‐H chemistry. A general‐purpose Atomic Cluster Expansion potential covers this chemistry across the full concentration range with explicit Ising‐like treatment of magnetism.
Baptiste Bienvenu, Mira Todorova, Jörg Neugebauer, Dierk Raabe, Matous Mrovec, Ralf Drautz   +5 more
wiley   +1 more source

Modelling smear effect of vertical drains using a diameter reduction method

Journal of Rock Mechanics and Geotechnical Engineering
Vertical drains are used to accelerate consolidation of clays in ground improvement projects. Smear zones exist around these drains, where permeability is reduced due to soil disturbance caused by the installation process.
Zhichao Shen, Siau Chen Chian, Siew Ann Tan, Chun Fai Leung   +3 more
doaj   +1 more source

A High‐Loading Zn Single‐Atom Nanozyme Targets the Zn/HIF‐1α/GLUT1 Axis to Disrupt Glucose Metabolic Reprogramming and Remodel the Tumor Immune Microenvironment

Advanced Science, EarlyView.
A high‐loading Zn single‐atom nanozyme (ZMG@CS) delivers ML‐SA5 and GOx to lysosomes. ML‐SA5 activates TRPML1 to release endogenous Zn2+, while the nanozyme provides exogenous Zn2+ and GOx‐driven acidification amplifies ROS production. Together, these effects suppress the HIF‐1α/GLUT1 axis, disrupt glucose and redox homeostasis, induce disulfidptosis ...
Zhenxin Wang, Yuhang Tang, Ronghao Yue, Jingtao Xu, Yong Tao, Jie Chen, Shipeng Li, Guosheng Zhao, Jinfang Xue, Mingwei Sun, Fenglei Gao, Yunsheng Ou, Yang Wang   +12 more
wiley   +1 more source