scholarly journals On the Relationship of Snow Accumulation to Surface Topography at “Byrd Station”, Antarctica

1965 ◽  
Vol 5 (42) ◽  
pp. 843-847 ◽  
Author(s):  
Anthony J. Gow ◽  
Robert Rowland

AbstractRecent measurements of snow accumulation on undulating surfaces around “Byrd station”, Antarctica indicate that the undulations are tending to be filled in. These results are discussed in the light of current knowledge of the origin and migration of such features.

1965 ◽  
Vol 5 (42) ◽  
pp. 843-847 ◽  
Author(s):  
Anthony J. Gow ◽  
Robert Rowland

AbstractRecent measurements of snow accumulation on undulating surfaces around “Byrd station”, Antarctica indicate that the undulations are tending to be filled in. These results are discussed in the light of current knowledge of the origin and migration of such features.


1993 ◽  
Vol 104 (3) ◽  
pp. 883-898 ◽  
Author(s):  
C. Thompson-Coffe ◽  
D. Zickler

The organization of actin during meiosis and sporulation in the ascus of the filamentous ascomycete Sordaria macrospora was determined by immunofluorescence without removal of the cell wall. Actin is present as a dense cortical network of microfilaments (MF) and plaques, a perinuclear shell of actin in prophase I of meiosis, and a complex array of MF involved in alignment of prespore nuclei and closure of spore cell membranes. The relationship of actin to the previously examined microtubule system of the ascus was determined by double-label immunofluorescence. The cytoskeletal inhibitors nocodazole, cytochalasin D and 2,3-butanedione monoxime were used to examine the roles of actin and myosin in ascus development. Microfilament and microtubule arrays are interdependant; disruption of one network results in abnormalities in the other. Both microfilaments and actin-myosin interaction are required for separation and migration of duplicated spindle pole bodies, septation and sporulation


Author(s):  
Paul Jones ◽  
Michał Krzyżanowski

‘Identity, Belonging and Migration: Beyond Constructing ‘Others’’, written by Paul Jones and Michael Krzyanowksi, addresses similar themes to the chapter that comes before it by seeking to discourage the uncritical application of the concept of identity, which the authors argue is not always helpful when assessing the relationship of migrants to collectives.


Author(s):  
Mona Chung ◽  
Bruno Mascitelli

This chapter examines Chinese migration and investment into Europe and explores models of migration and investment by identifying the gap between the two. The chapter highlights the major characteristics of Chinese investment and migration into Europe by identifying and separating the investment from Chinese state-owned enterprises (SOEs) and that of private individuals. This triangulation provides scholars and policy makers with a unique scenario. The migration and investment literature has been conducted as two separate and parallel topics. A small number of studies investigate the relationship of the two as one inter-connected relationship. There is even less focus on Chinese migration and investment due to the fact that over the past decade it has been a fast-moving phenomenon because of the speed of Chinese economic development. In addition, China's different political and economic system and its unique state structure adds another layer of complexity for scholars.


1982 ◽  
Vol 16 (1) ◽  
pp. 4-26 ◽  
Author(s):  
Thomas K. Morrison

It has often been suggested that U.S. foreign economic policies, including the areas of aid, trade and investment, could be utilized to influence migration pressures in major sending countries. This study explores the feasibility of this proposition by examining the linkages between these U.S. economic instruments and migration “push” factors. These linkages are shown to be indirect, are often quite complex, and the final impact on migration, except perhaps in the long run, is probably small in most cases.


The Condor ◽  
1963 ◽  
Vol 65 (3) ◽  
pp. 200-223 ◽  
Author(s):  
James R. King ◽  
Donald S. Farner

Author(s):  
Лаура Альбердовна Нагоева

В рамках данной статьи рассматриваются западнокавказские письменные артефакты: проблемный аспект их изучения, основные тенденции предыдущих исследований, выдвигается гипотеза родства данных артефактов с протописьменными системами культур Восточной Европы и Ближнего Востока. Изучение данных культурных элементов в свете новых археологических данных позволяет рассматривать их как осколки неолитической знаковой системы. Наряду с цивилизационным скачком, произошедшим в неолите (земледелие и сельское хозяйство, крупные поселения и новый общественный уклад, значительно изменивший характер социально-экономических отношений), произошло переосмысление способов передачи и фиксации информации, тем самым образуя фундамент для возникновения протописьменных систем, распространившихся посредством культурной экспансии и миграций на большие территории, в том числе и Западный Кавказ. Также отмечается, что графическая основа кавказских памятников выходит за пределы кавказско-месопотамско-анатолийского ареала, подтверждением чего служит так называемое винчанское письмо. Делается вывод о том, что знаковый фундамент, сформировавшийся в дунайском энеолите, способствовал образованию первых цивилизаций в исследуемом регионе. This paper deals with the Western Caucasus written artifacts: the problematic aspect of their study, the main trends of previous studies, the hypothesis of the relationship of these artifacts with the oldest writing systems of cultures of Eastern Europe and the Middle East. The study of these cultural elements in the light of new archaeological data leads to the conclusion that they can be considered as fragments of the Neolithic sign system, in particular their commonality with the so-called Danube script. Along with the civilizational leap which occurred in the Neolithic (land husbandry and agriculture, large settlements and a new social structure that changed significantly the nature of socio-economic relations), a rethinking of the methods of transmitting and fixing information took place. Thus, the foundation for the emergence of writing systems that spread through cultural expansion and migration to large territories, including the Western Caucasus, was formed. The author also notes that the graphic basis of Caucasus monuments goes beyond the Caucasus-Mesopotamian-Anatolian range, as confirmed by the so-called Vinca script. It is inferred that the glyph foundation formed in the Danube Eneolithic contributed to the formation of the first civilizations in the region under study.


2020 ◽  
Vol 92 (11) ◽  
pp. 82-85
Author(s):  
Kh. G. Omarova ◽  
N. I. Aleshina ◽  
Zh. B. Ponezhevа ◽  
A. V. Gorelov ◽  
V. V. Maleev ◽  
...  

An analysis of published literature data on the relationship of parasitic diseases and oncogenesis is carried out. Current knowledge about the association of parasitic infections and cancer formation has revealed several carcinogenic mechanisms, but the severity of the relationship between parasites and cancer formation (except for schistosome, opisthorchis and clonorchis) should be confirmed in future experimental and population studies.


2012 ◽  
Vol 562-564 ◽  
pp. 949-954
Author(s):  
Zhong Xu ◽  
Xi Jiang Zhao ◽  
Wen Ji Xu ◽  
Hao Ran Xu ◽  
Meng Lei Zhu ◽  
...  

In order to discuss more convenient the relationship of coating morphology and frictional wear in processing, according to the one correspondence of gray image and actual surface topography, this proposed a method of digital image processing. with binary image of different load F and serial rubbings obtained pits distribution rate T and the optimal range in wear resistance. It calculated fractal dimension D based on the Discrete Fractional Brownian Random Field, summarized the osculating relationship of D and surface topography in frictional wear.


2021 ◽  
Vol 12 ◽  
Author(s):  
Chunlian Ma ◽  
Haichao Ding ◽  
Yuting Deng ◽  
Hua Liu ◽  
Xiaoling Xiong ◽  
...  

Exercise not only produces beneficial effects on muscle itself via various molecular pathways, but also mediates the interaction between muscles and other organs in an autocrine/paracrine manner through myokines, which plays a positive role in maintaining overall health. Irisin, an exercise-derived myokine, has been found involved in the regulation of some cardiovascular diseases. However, the relationship between irisin and cardiovascular health is not fully elucidated and there are some divergences on the regulation of irisin by exercise. In this review, we present the current knowledge on the origin and physiology of irisin, describe the regulation of irisin by acute and chronic exercises, and discuss the divergences of the related research results. Importantly, we discuss the role of irisin as a biomarker in the diagnosis of cardiovascular diseases and describe its treatment and molecular mechanism in some cardiovascular diseases. It is expected that irisin will be used as a therapeutic agent to combat cardiovascular diseases or other disorders caused by inactivity in the near future.


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