frustrate

WordNet

discouraging by hindering
preventing realization or attainment of a desire (同)frustrative, thwarting

PrepTutorEJDIC

〈計画・努力など〉‘を'ざ折させる,失敗させる / (計画などで)〈人〉‘を'ざ折させる,‘の'やる気をくじく《+『名』+『in』+『名』》

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1. 膀胱カテーテルの合併症および予防戦略 complications of urinary bladder catheters and preventive strategies
2. 透析患者におけるC型肝炎ウイルス感染の診断 diagnosis of hepatitis c virus infection in patients on dialysis

English Journal

Self-stopping effects of lithium penetration into silicon nanowires.

Lang L, Dong C, Chen G, Yang J, Gu X, Xiang H, Wu R, Gong X.Author information Key Laboratory of Computational Physical Sciences (MOE), State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200433, China. gxgrq1@gmail.com.AbstractUsing first-principles molecular dynamics simulations, we demonstrate that the penetration of lithium atoms into a silicon nanowire (SiNW) self-stops once a metallic amorphous Li-Si shell forms. This explains the extended life of crystalline Si cores in SiNW battery electrodes observed in experiments. Metallic Li-Si shells grasp Li atoms and prohibit them from directly segregating through interstitial channels toward the crystalline center of SiNWs. Meanwhile, high pressure develops on the core as it shrinks, due to the expansion and tension in the amorphous shell, which eventually frustrate the step-forward amorphization. We also elucidate the reasons why H-passivated SiNWs are not suitable for studies of lithiation processes.
Nanoscale.Nanoscale.2013 Dec 21;5(24):12394-8. doi: 10.1039/c3nr03301e. Epub 2013 Oct 28.
Using first-principles molecular dynamics simulations, we demonstrate that the penetration of lithium atoms into a silicon nanowire (SiNW) self-stops once a metallic amorphous Li-Si shell forms. This explains the extended life of crystalline Si cores in SiNW battery electrodes observed in experiment
PMID 24162503

Investigation of Sm0.2Ce0.8O1.9/Na2CO3 Nanocomposite Electrolytes: Preparation, Interfacial Microstructures, and Ionic Conductivities.

Yin S, Zeng Y, Li C, Chen X, Ye Z.Author information State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering, Nanjing University of Technology , 5 New Model Road, Nanjing 210009, P. R. China.AbstractWith the analytical grade Ce(NO3)3·6H2O, Sm(NO3)3·6H2O, and Na2CO3 as starting materials, Sm0.2Ce0.8O1.9(SDC)/Na2CO3 nanocomposite electrolytes were prepared through a rare-earth/sodium carbonate complex precipitation, prefiring, and sintering operations. The phase components and microstructures were studied and characterized by XRD, FESEM, TEM, and TG-DSC. In particular, the interfacial interactions between the phases of SDC crystallites and amorphous Na2CO3 were deliberately probed by Raman and infrared spectroscopies. It has been found that the amorphous carbonates in the SDC/Na2CO3 composites are tightly bound to the surface of SDC nanocrystals to form an intimate shell-layer via a long-range interface interaction, characterized by ∼8 nm in thickness and a red-shift of 15 cm-1 for the Raman symmetrical vibration mode of carbonate ions with reference to the crystalline Na2CO3, which is practically enabled to frustrate the crystallization of Na2CO3 and enhance the transport properties of oxide ions in the SDC/Na2CO3 composite electrolytes because of the disordered interface microstructures. Moreover, smaller SDC nanocrystals were found to achieve higher conductivity enhancements for the SDC/Na2CO3 composite electrolytes and the {100} facets on the surface of SDC nanocrystals are believed to be more important than the other facets because of their strong electropositivity. This effect makes the SDC/Na2CO3 composite sample prefired at 600 °C realize a much higher ionic conductivity than the samples prefired at the other temperatures.
ACS applied materials & interfaces.ACS Appl Mater Interfaces.2013 Dec 9. [Epub ahead of print]
With the analytical grade Ce(NO3)3·6H2O, Sm(NO3)3·6H2O, and Na2CO3 as starting materials, Sm0.2Ce0.8O1.9(SDC)/Na2CO3 nanocomposite electrolytes were prepared through a rare-earth/sodium carbonate complex precipitation, prefiring, and sintering operations. The phase components and microstructures w
PMID 24251947

Weak frustration regulates sliding and binding kinetics on rugged protein-DNA landscapes.

Marcovitz A, Levy Y.Author information Department of Structural Biology, Weizmann Institute of Science , Rehovot, 76100, Israel.AbstractA fundamental step in gene-regulatory activities, such as repression, transcription, and recombination, is the binding of regulatory DNA-binding proteins (DBPs) to specific targets in the genome. To rapidly localize their regulatory genomic sites, DBPs reduce the dimensionality of the search space by combining three-dimensional (3D) diffusion in solution with one-dimensional (1D) sliding along DNA. However, the requirement to form a thermodynamically stable protein-DNA complex at the cognate genomic target sequence imposes a challenge on the protein because, as it navigates one-dimensionally along the genome, it may come in close contact with sites that share partial or even complete sequence similarity with the functional DNA sequence. This puzzling issue creates a conflict between two basic requirements: finding the cognate site quickly and stably binding it. Here, we structurally assessed the interface adopted by a variety of DBPs to bind DNA specifically and nonspecifically, and found that many DBPs utilize one interface to specifically recognize a DNA sequence and another to assist in propagating along the DNA through nonspecific associations. While these two interfaces overlap each other in some proteins, they present partial overlap in others and frustrate the protein-DNA interface. Using coarse-grained molecular dynamics simulations, we demonstrate that the existence of frustration in DBPs is a compromise between rapid 1D diffusion along other regions in the genome (high frustration smoothens the landscape for sliding) and rapid formation of a stable and essentially active protein-DNA complex (low frustration reduces the free energy barrier for switching between the two binding modes).
The journal of physical chemistry. B.J Phys Chem B.2013 Oct 24;117(42):13005-14. doi: 10.1021/jp402296d. Epub 2013 May 24.
A fundamental step in gene-regulatory activities, such as repression, transcription, and recombination, is the binding of regulatory DNA-binding proteins (DBPs) to specific targets in the genome. To rapidly localize their regulatory genomic sites, DBPs reduce the dimensionality of the search space b
PMID 23668488

Japanese Journal

Acceptance of Liberal Thought in the Course of Economic Transformation : Comparative Analysis of Russia and China (経済学部創設50周年記念号)

西南学院大学経済学論集 49(2・3), 1-20, 2014-12
NAID 120005643507

25aPS-114 正八面体フラストレート系Ce_6Ni_6P_<17>のLa希釈効果(領域8ポスターセッション(籠状化合物・重い電子系および価数揺動など),領域8(強相関系分野:高温超伝導,強相関f電子系など))

日本物理学会講演概要集 68(2-3), 463, 2013-08-26
NAID 110009756925

Spontaneous left side pneumothorax and myocardial infarction : rare but potentially lethal coexistence that can frustrate clinicians

General thoracic and cardiovascular surgery 59(3), 202-204, 2011-03-10
NAID 10029018813

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