نتایج جستجو برای: migration of elements

تعداد نتایج: 21192170  

Alireza Biglari Ehsan Saburi Jalil Tavakolafshari Samad Nadri, Seyed Abbas Mirzaei, Yousef Mortazavi,

Objective(s): Extracellular matrix (ECM) is composed of many kinds of glycoproteins containing glycosaminoglycans (GAGs) moiety. The research was conducted based on the N-Acetylgalactosamine (GalNAc) degradation of ECM components by α-N-acetylgalactosaminidase (Nagalase) which facilitates migration and invasion of cancer cells. This study aims to investigate the effects of Naga-shRNA downregula...

The present study investigates the central concerns of the use of visuals within the four EFL textbooks taught at Iranian high schools which have been prescribed by the Ministry of Education. To do this, the four EFL textbooks were evaluated and analyzed. Descriptive statistics were used to analyze data quantitatively. The analysis indicated that over the four textbooks, 95.71 percent of all vi...

2010
Vitalijus Martusevicius Egidijus Kazanavicius Vaidas Jukavicius

Over the past years of research various layers of programming abstraction for networked sensor systems have evolved and the motivation of macro-programming is discussed. Among several recently proposed macro-programming techniques, the abstract task graph macro-programming framework was developed to alleviate application developer work when creating a wide range of wireless sensor network appli...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2014
Albrecht Schwab Christian Stock

Cell migration is a central component of the metastatic cascade requiring a concerted action of ion channels and transporters (migration-associated transportome), cytoskeletal elements and signalling cascades. Ion transport proteins and aquaporins contribute to tumour cell migration and invasion among other things by inducing local volume changes and/or by modulating Ca(2+) and H(+) signalling....

Journal: :Population Space and Place 2021

There is now a large literature on skilled migration, which uses multiple definitions, concepts, theories and understandings of migrants. However, this research has not adequately considered the geographies skills—the spatial temporal relations through skills get meaning, are accrued claimed their outcomes how these shape shaped by mobilities migration. This paper explores sites networks as two...

Journal: :Geopolitics 2021

Digital information and identification technologies offer state authorities new means for rendering individual subjects entire population legible. Based on fieldwork at a migrant reception centre in Berlin, this article investigates how migrants hitherto unknown to are translated into re-identifiable, governable with the help of various digital devices. Conceptually, complements sociology trans...

Cementing is an essential part of every drilling operation. Protection of the wellbore from formation fluid invasion is one of the primary tasks of a cement job. Failure in this task results in catastrophic events, such as blow outs. Hence, in order to save the well and avoid risky and operationally difficult remedial cementing, slurry must be optimized to be resistant against gas migration phe...

Fahime Sheikh Shoaee Kamal Aldin Niknami, Mohammad Lamehi,

This research focuses on reconstructing migration and dietary strategies of individuals in the Iron Age. Elemental analyses from archaeological skeletal remains yield an important perspective on temporal shifts in diet in relation to social and environmental circumstances. The elemental ratio data such as dietary and environmental changes have shed light on crucial issues in archaeology. The ce...

  Abstract. Spatial has always been an inherent component of demography, and demographic processes are inherently spatiotemporal. Recognizing the importance of spatial in general and spatial segregation in particular in demographic analysis has created new positions in demography and its conceptual and analytical frameworks. The notion of spatial segregation refers to the distribution of social...

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