Search results for " Mobility"
showing 10 items of 577 documents
Dynamic compartmentalization of calcium channel signalling in neurons.
2020
Calcium fluxes through the neuronal membrane are strictly limited in time due to biophysical properties of voltage-gated and ligand-activated ion channels and receptors. Being embedded into the crowded dynamic environment of biological membranes, Ca2+-permeable receptors and channels undergo perpetual spatial rearrangement, which enables their temporary association and formation of transient signalling complexes. Thus, efficient calcium-mediated signal transduction requires mechanisms to support very precise spatiotemporal alignment of the calcium source and Ca2+-binding lipids and proteins in a highly dynamic environment. The mobility of calcium channels and calcium-sensing proteins themse…
Evaluating ancient Egyptian prescriptions today: Anti-inflammatory activity of Ziziphus spina-christi.
2015
Abstract Background Ziziphus spina-christi (L.) Desf. (Christ's Thorn Jujube) is a wild tree today found in Jordan, Israel, Egypt, and some parts of Africa, which was already in use as a medicinal plant in Ancient Egypt. In ancient Egyptian prescriptions, it was used in remedies against swellings, pain, and heat, and thus should have anti-inflammatory effects. Nowadays, Z. spina-christi, is used in Egypt (by Bedouins, and Nubians), the Arabian Peninsula, Jordan, Iraq, and Morocco against a wide range of illnesses, most of them associated with inflammation. Pharmacological research undertaken to date suggests that it possesses anti-inflammatory, hypoglycemic, hypotensive and anti-microbial e…
Mobility of a Mononucleotide within a Lipid Matrix: A Neutron Scattering Study
2017
International audience; An essential question in studies on the origins of life is how nucleic acids were first synthesized and then incorporated into compartments about 4 billion years ago. A recent discovery is that guided polymerization within organizing matrices could promote a non-enzymatic condensation reaction allowing the formation of RNA-like polymers, followed by encapsulation in lipid membranes. Here, we used neutron scattering and deuterium labelling to investigate 5'-adenosine monophosphate (AMP) molecules captured in a multilamellar phospholipid matrix. The aim of the research was to determine and compare how mononucleotides are captured and differently organized within matric…
Attosecond Soft-X-Ray Spectroscopy in a Transition Metal Dichalcogenide
2019
Information about the real-time response of carriers to optical fields is paramount to advance information processing or to understand the bottlenecks of light-matter interaction and energy harvesting. Transition-metal dichalcogenide (TMDC) compounds are an emerging class of materials with attractive structural and electronic properties that can be thinned to the 2D limit and TiS 2 is a paradigmatic example for a semi-metallic TMDC, since its electron mobility ranges between that of a metal and a semiconductor.
Assessment of Functional Activities in Individuals with Parkinson’s Disease Using a Simple and Reliable Smartphone-Based Procedure
2020
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Social determinants of identity in communities: A social capital- and social categorization-based approach – findings from Latvia
2017
The article investigates the relations, in the light of new paradigms of economic development, between trust and economic wealth at the micro level in the Republic of Latvia, by means of a structural equation modelling-based approach and a framework combining social capital and social identity theory, in a rationale of cross-fertilization between social and cognitive science. Results are also tested against control dimensions reflecting relevant divides in Latvian society (residence place dimensions; ethno-linguistic belongings; educational differences). General results support the hypothesis of the existence of a causal path connecting personal wealth, institutional trust, social engagemen…
School Bike Sharing Program: will it Succeed?
2020
Abstract Encouraging active and sustainable transport modes in order to limit the excessive use of cars, as well as reducing pollutant emissions and creating livable urban environments, has become one of the priorities for policymakers in recent years. The introduction of innovative systems increasingly being introduced in modern cities, such as bike sharing, can certainly contribute to the spread of cycling and thus allow a radical change in the mobility habits of their citizens. This can be especially true for high-school students who are often otherwise accompanied by their parents with private cars. This article aims to assess the influence that a bike sharing program for students has o…
Las "cárceles del capital humano": trabajo y vidas precarias en la juventud universitaria
2017
En los últimos treinta años se ha transitado desde una concepción del capital humano como una macromagnitud económica a una idea de capital humano corporeizada en el individuo. Hemos asistido a una progresiva infiltración de dicha ideología del capital humano también en la vida de la juventud precaria. Nos centramos aquí en los jóvenes universitarios, para quienes el capital humano, ya de forma hegemónica, dirige y marca sus recorridos laborales y vitales. El análisis de los discursos de estos jóvenes nos permitirá explorar desde la imposición de la lógica de la movilidad laboral, a la sujeción a las formas de "emprendedor de sí mismo" y a la normalización, como parte del proceso de incorpo…
Les deux faces – objective/subjective – de la mobilité sociale
2006
06062; National audience; How does objective social mobility, traditionally measured with tables of mobility drawn up by sociologists, relate to feelings about mobility, i.e., how individuals perceive, explain and appraise their social trajectory? Using a question from a survey (Insee's Formation, qualification professionnelle), subjective mobility was statistically evaluated so as to bring the two approaches to mobility together and measure the (considerable) frequency of deviations. Subjective mobility was then analyzed qualitatively on the basis of interviews conducted with respondents in the same survey. This helps us account for deviations and identify the bundle of parameters that peo…
15 Minute City Concept and Palermo Case Study
Sustainable urban mobility models and decarbonization in transportation have been discussed globally for decades. Yet the problem is not just decarbonization and the solution is not limited to green technology alone. Particularly, Covid-19 brought to light other important and ingrained problems of cities such as inequality of accessibility, the marginalization of some urban, peri-urban, rural territories and the emergence of social exclusion. In order to find a way out from these problems, practical, easily accessible, comfortable, and cheap alternatives should be provided to citizens and the use of private vehicles should be minimized. However, no matter how many alternative transportation…