نتایج جستجو برای: asymmetric

تعداد نتایج: 65601  

2012
Ján Jamroškovič Nad’a Pavlendová Katarína Muchová Anthony J. Wilkinson Imrich Barák

The Min system plays an important role in ensuring that cell division occurs at mid-cell in rod-shaped bacteria. In Escherichia coli, pole-to-pole oscillation of the Min proteins specifically inhibits polar septation. This system also prevents polar division in Bacillus subtilis during vegetative growth; however, the Min proteins do not oscillate in this organism. The Min system of B. subtilis ...

2017
Juan E. Panebianco Mariano J. Mendez Daniel E. Buschiazzo Donaldo Bran Juan J. Gaitán

Wind erosion of freshly-deposited volcanic ash causes persistent storms, strongly affecting ecosystems and human activity. Wind erosion of the volcanic ash was measured up to 17 months after the ash deposition, at 7 sites located within the ash-deposition area. The mass flux was measured up to 1.5 m above ground level. Mass transport rates were over 125 times the soil wind-erosion rates observe...

2012
Vania Fontani Lucia Aravagli Matteo Lotti Margotti Alessandro Castagna Piero Mannu Salvatore Rinaldi

PURPOSE The aim of this study is to investigate the effects of neuropsychophysical optimization (NPPO) protocol treatment by radioelectric asymmetric conveyer (REAC) technology in the management of sense of stress and confusion (SSC); an analysis of a single cluster of the psychological stress measure (PSM) test. PATIENTS AND METHODS The PSM, a self-administered questionnaire, was used to mea...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2014
Jingkui Wang Benjamin Pfeuty Quentin Thommen M Carmen Romano Marc Lefranc

Fundamental biological processes such as transcription and translation, where a genetic sequence is sequentially read by a macromolecule, have been well described by a classical model of nonequilibrium statistical physics, the totally asymmetric exclusion principle (TASEP). This model describes particles hopping between sites of a one-dimensional lattice, with the particle current determining t...

Journal: :Accounts of Chemical Research 2004

Journal: :Nature Reviews Neuroscience 2011

Journal: :Proceedings of the annual meetings on phonology 2023

In this paper, I present novel evidence supporting the claim that there are no right-edge infixes. Based on a typological survey, demonstrate all putative infixes only surface in languages with prosodic prominences. It is therefore possible to reanalyze as prominence-oriented Infixes, result, highly asymmetric: they can occur left edge of stem or prosodically prominent position, but nowhere els...

Journal: :The American Economic Review 2021

We document that the expectations of households, firms, and professional forecasters in standard surveys simultaneously extrapolate from recent events underreact to new information. Existing models expectation formation, whether behavioral or rational, cannot account for these observations. develop a rational theory extrapolation based on limited attention, which is consistent with this evidenc...

2010
Carrie A Metzinger Dominique C Bergmann

Like animals, plants use asymmetric cell divisions to create pattern and diversity. Due to a rigid cell wall and lack of cell migrations, these asymmetric divisions incur the additional constraints of being locked into their initial orientations. How do plants specify and carry out asymmetric divisions? Intercellular communication has been suspected for some time and recent developments identif...

Journal: :Organic & biomolecular chemistry 2008
Jennifer A Bodkin George B Bacskay Malcolm D McLeod

An investigation of the factors responsible for the sense and magnitude of regioselectivity in the Sharpless asymmetric aminohydroxylation (AA) has been conducted. Theoretical investigations of ligand-osmium binding geometry and experimental investigations of the Sharpless AA reaction on a series of functionalized pent-2-enoic acid ester substrates demonstrate that the opposite regioselectivity...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید