نتایج جستجو برای: SMSB

تعداد نتایج: 14  

Journal: :Astrobiology 2013
Josep M Ribó Joaquim Crusats Zoubir El-Hachemi Albert Moyano Celia Blanco David Hochberg

The emergence of chirality in enantioselective autocatalysis for compounds unable to transform according to the Frank-like reaction network is discussed with respect to the controversial limited enantioselectivity (LES) model composed of coupled enantioselective and non-enantioselective autocatalyses. The LES model cannot lead to spontaneous mirror symmetry breaking (SMSB) either in closed syst...

2000
Waltraud Schweikhardt

The integration of blind people into learning and working environments of the sighted needs among other things a possibility to write and represent mathematical expressions in an appropriate way. There exist different concepts how to form a mathematical notation for the blind. This contribution presents in a first step a discussion of the variety of demands for a mathematical notation. In a sec...

Journal: :Physical review letters 2009
David Hochberg

The nonequilibrium effective potential is computed for the Frank model of spontaneous mirror symmetry breaking (SMSB) in chemistry in which external noise is introduced to account for random environmental effects. When these fluctuations exceed a critical magnitude, mirror symmetry is restored. The competition between ambient noise and the chiral bias due to physical fields and polarized radiat...

Journal: :Chemical science 2017
Josep M Ribó Joaquim Crusats Zoubir El-Hachemi Albert Moyano David Hochberg

Chiral hypercycle replicators (first-order autocatalysis together with mutual cross-catalysis) formed from achiral or racemizing resources may lead to spontaneous mirror symmetry breaking (SMSB) without the need for additional heterochiral inhibition reactions, such as those of the Frank-like models, which are an obstacle for the emergence of evolutionary selection properties. The results indic...

Journal: :Fizika tverdogo tela 2022

On SmSb single crystals synthesized from elements, the electrical resistance R and magnetization M were measured as functions of temperature magnetic field. A large magnetoresistance is observed over entire range 2–300 K, increasing significantly with decreasing temperature. The dependence exhibits a singularity at transition to antiferromagnetic state TN=2.3 K. At temperatures below 8 de Haas-...

Journal: :Fizika tverdogo tela 2022

On SmSb single crystals synthesized from elements, the electrical resistance R and magnetization M were measured as functions of temperature magnetic field. A large magnetoresistance is observed over entire range 2-300 K, increasing significantly with decreasing temperature. The dependence exhibits a singularity at transition to antiferromagnetic state T N =2.3 K. At temperatures below 8 de Haa...

Journal: :Biomedical Journal of Scientific and Technical Research 2022

Nesreen Abu Yousif Hamid1, Hala kamal Ali Mohamed2,3,4* and Mohammed Elmujtba Adam Essa5,6* Author Affiliations 1Health Professions Education, Education Development Research Centre Faculty of Medicine, the international university Africa, Sudan 2Departments Microbiology, African International University (AIU), 3Department clinical Immunology, Medical Specialization board (SMSB), 4Faculty medici...

Journal: :SciPost physics proceedings 2023

LaSb _2 2 exhibits a large, non-saturating, linear magnetoresistance at low temperatures, defying the expectations of Fermi liquid theory. This is thought to be caused by charge density wave order emerging below an abrupt, hysteretic anomaly in resistivity \sim di...

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