The role of major fault zones in controlling the geometry and spatial organization of structures in the Zagros Fold-Thrust Belt

A gravity profile was obtained from closely spaced readings along a traverse approximately nine miles in length across the San Andreas fault zone immediately south of Palmdale, California in the western Mojave Desert. Corrected gravity values show a slight but distinctive minimum associated with the fault zone which may be attributed to the reduced density of the shattered rock masses in the fault zone. The existence of this minimum suggests that major fault zones may be traced across terrain, on which surface expression of the fault does not exist, by successive profiles across the suspected position of the fault zone.

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Characterization of stress perturbations near major fault zones: insights from 2-D distinct-element numerical modelling and field studies (Jura mountains)

Journal of Structural Geology ◽

10.1016/s0191-8141(96)00104-6 ◽

1997 ◽

Vol 19 (5) ◽

pp. 703-718 ◽

Cited By ~ 111

Author(s):

C. Homberg ◽

J.C. Hu ◽

J. Angelier ◽

F. Bergerat ◽

O. Lacombe

Keyword(s):

Numerical Modelling ◽

Distinct Element ◽

Field Studies ◽

Fault Zones ◽

Jura Mountains ◽

Major Fault

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Spatial integration of mechanical forces by alpha-actinin establishes actin network symmetry

10.1101/578799 ◽

2019 ◽

Cited By ~ 1

Author(s):

Fabrice Senger ◽

Amandine Pitaval ◽

Hajer Ennomani ◽

Laetitia Kurzawa ◽

Laurent Blanchoin ◽

...

Keyword(s):

Network Architecture ◽

Spatial Organization ◽

Global Network ◽

Mechanical Forces ◽

Spatial Integration ◽

Actin Network ◽

Entire Cell ◽

Extracellular Microenvironment ◽

Extracellular Environment

Cell and tissue morphogenesis depend on the production and spatial organization of tensional forces in the actin cytoskeleton. Actin network architecture is complex because it is made of distinct modules in which filaments adopt a variety of organizations. The assembly and dynamics of these modules is well described but the self-organisation rules directing the global network architecture are much less understood. Here we investigated the mechanism regulating the interplay between network architecture and the geometry of cell’s extracellular environment. We found that α-actinin, a filament crosslinker, is essential for network symmetry to be consistent with extracellular microenvironment symmetry. It appeared to be required for the interconnection of transverse arcs with radial fibres to ensure an appropriate balance between forces at cell adhesions and across the entire actin network. Furthermore, the connectivity of the actin network appeared necessary for the cell ability to integrate and adapt to complex patterns of extracellular cues as they migrate. Altogether, our study has unveiled a role of actin-filament crosslinking in the physical integration of mechanical forces throughout the entire cell, and the role of this integration in the establishment and adaptation of intracellular symmetry axes in accordance with the geometry of extracellular cues.

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Research of urban agglomerations in the aspect of implementation of the administrative and territorial reform in Ukraine (case study of Kharkiv region)

Human Geography Journal ◽

10.26565/2076-1333-2019-27-04 ◽

2019 ◽

Keyword(s):

Spatial Structure ◽

Spatial Organization ◽

Weighted Average ◽

Evolutionary Potential ◽

Statistical Parameters ◽

Urban Agglomerations ◽

Territorial Structure

In the modern context of, one of the main tasks in the regional development management is to optimally realize the complex potential of the territories, which requires a comprehensive study of the spatial structure and evolutionary potential of agglomerations of all levels in order to identify disparities in their development, correct imbalances and optimize the spatial organization of the region. The first step to solve this problem is to identify the spatial structure and evaluate the interconnections of agglomerations sequentially, from local to regional level. This is becoming more relevant in the context of administrative and territorial reform in Ukraine. The purpose of this study is to analyze the prospects for the development of urban agglomerations and the organization of the administrative and territorial structure of Kharkiv region in view of the prevailing influence of the city of Kharkiv and the Kharkiv agglomeration. The basic theoretical and methodological starting points of the study of urban agglomerations are presented; their characteristics and parameters of boundary determination were defined. The essence of the method of modeling of integral influence function (IIF modeling) was revealed, the author's research methodology was substantiated. The tendencies of introduction of administrative and territorial reform in Ukraine were analyzed. It was established that Kharkiv region occupies mediocre places in terms of formation of the united territorial communities, there were 23 ones in the oblast (3 of them are city, 12 town, 8 rural ones) by the end of 2019. The scheme for dividing into enlarged districts has not yet been approved. According to different plans / proposals, the existing 27 districts of the oblast should be consolidated into nine, seven, six or four enlarged districts (counties). All of the above proposals were considered by the authors, it is established that the existing projects do not fully cover the main prevailing factors of allocation of competitive districts, do not take into account the role of historically formed system of settlement, spatial-statistical parameters, integral potential of territories, urbanization and agglomeration. The authors performed the IIF modeling and constructed the IIF surface of the weighted average settlement potential of Kharkiv region by the base radius of influence (2, 10, 20, and 30 km), which allowed to determine the features of the Kharkov agglomeration structure and the interaction of the settlements in the region by different radiuses of interaction, primary agglomerations, prospective growth points. On the basis of the obtained results of IIF modeling, the author's model of administrative and territorial division of Kharkiv region into eight enlarged districts was proposed, given the specific features of the settlement system and the correlation of area and population of the modeled administrative and territorial units. The scientifically grounded division of the region into enlarged districts (counties) and stimulation of their development will contribute to the most complete and rational use of the territories potential, increase of economic, human, investment potential, rise of the level and quality of life of the population, etc.

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Travelling to the described present: mago-space in the Strugatskys’ Monday starts on Saturday

Studia Rossica Posnaniensia ◽

10.14746/strp.2021.46.2.7 ◽

2021 ◽

Vol 46 (2) ◽

pp. 93-104

Author(s):

Наталья Тулякова ◽

Наталья Никитина

Keyword(s):

Cultural Heritage ◽

Science Fiction ◽

Spatial Organization ◽

Classical Literature ◽

Mental Space ◽

Mental Spaces ◽

Do So

Fantasy and science fiction genres extensively use imaginary settings and locations different from realistic ones but striving to look real. Arkady and Boris Strugatsky, pioneers of the science fiction genre in Russia, actively exploited the potential of both genres in their early tale, Monday starts on Saturday (1964), which combines features of the two space types. The present paper analyses the principles of creating ‘mago-space’ in the book. To do so, we look at the spatial organization of the events involved in the plot and the personages’ ideas regarding space. The research will enable us to clarify the role of space in conveying the authors’ message, which in this tale is quite explicit. We argue that the space changes significantly within the book, accompanying genre transformations and the development of the protagonist. Since the tale uses ‘mental sublocations’ as the main units of spatial organization, each part is determined by a certain type of cultural heritage. In the first part, it is the mental space of folklore and classical literature, in the second – that of mythology and science fiction, and in the final – philosophy and science. Mental spaces that coexist and follow various laws form a narrative which turns out to be a journey to the described present in the variety of its forms.

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