scholarly journals Unravelling the lithospheric-scale thermal field of the North Patagonian Massif plateau (Argentina) and its relations to the topographic evolution of the area

2020 ◽  
Author(s):  
Maria Laura Gomez Dacal ◽  
Magdalena Scheck-Wenderoth ◽  
Eugenio Aragón ◽  
Judith Bott ◽  
Mauro Cacace ◽  
...  
Keyword(s):  
Average Height ◽  
The North ◽  
Current State ◽  
Heating Event ◽  
Internal Deformation ◽  
Surrounding Areas ◽  
Transient Thermal ◽  
Thermal Simulations ◽  
Topographic Evolution ◽  
Orogenic Events

AbstractThe North Patagonian Massif (NPM) area in Argentina includes a plateau of 1200 m a.s.l. (meters above sea level) average height, which is 500–700 m higher than its surrounding areas. The plateau shows no evidence of internal deformation, while the surrounding basins have been deformed during Cenozoic orogenic events. Previous works suggested that the plateau formation was caused by a lithospheric uplift event during the Paleogene. However, the causative processes responsible for the plateau origin and its current state remain speculative. To address some of these questions, we carried out 3D lithospheric-scale steady-state and transient thermal simulations of the NPM and its surroundings, as based on an existing 3D geological model of the area. Our results are indicative of a thicker and warmer lithosphere below the NPM plateau compared with its surroundings, suggesting that the plateau is still isostatically buoyant and thus explaining its present-day elevation. The transient thermal simulations agree with a heating event in the mantle during the Paleogene as the causative process leading to lithospheric uplift in the region and indicate that the thermo-mechanical effects of such an event would still be influencing the plateau evolution today. Although the elevation related to the heating would not be enough to reach the present plateau topography, we discuss other mechanisms, also connected with the mantle heating, that may have caused the observed relief. Lithosphere cooling in the plateau is ongoing, being delayed by the presence of a thick crust enriched in radiogenic minerals as compared to its sides, resulting in a thermal configuration that has yet to reach thermodynamic equilibrium.

CURRENT STATE AND DEVELOPMENT PERSPECTIVES OF THE CASPIAN SPRAT FISHERIES

2018 ◽  
pp. 69-75
Author(s):  
Tatiana Vasilievna Pomogaeva ◽  
Aliya Ahmetovna Aseinova ◽  
Yuriy Aleksandrovich Paritskiy ◽  
Vjacheslav Petrovich Razinkov
Keyword(s):  
Food Item ◽  
Growth Potential ◽  
North West ◽  
Marine Fishery ◽  
The North ◽  
Current State ◽  
West Part ◽  
Eggs And Larvae ◽  
Intensive Growth

The article presents annual statistical data of the Caspian Research Institute of Fishery. There has been kept track of the long term dynamics of the stocks of three species of Caspian sprat (anchovy, big-eyed kilka, sprat) and investigated a process of substituting a food item of sprats Eurytemora grimmi to a small-celled copepod species Acartia tonsa Dana. According to the research results, there has been determined growth potential of stocks of each species. Ctenophoran-Mnemiopsis has an adverse effect on sprat population by eating fish eggs and larvae. Ctenophoram - Mnemiopsis is a nutritional competitor to the full-grown fishes. The article gives recommendations on reclamation of stocks of the most perspective species - common sprat, whose biological characteristics helped not to suffer during Ctenophoram outburst and to increase its population during change of the main food item. Hydroacoustic survey data prove the intensive growth of common sprat biomass in the north-west part of the Middle Caspian. According to the results of the research it may be concluded that to realize the volumes of recommended sprat catch it is necessary to organize the marine fishery of common sprat at the Russian Middle Caspian shelf.

scholarly journals Does natural selection favour taller stature among the tallest people on earth?

2015 ◽  
Vol 282 (1806) ◽  
pp. 20150211 ◽  
Author(s):  
Gert Stulp ◽  
Louise Barrett ◽  
Felix C. Tropf ◽  
Melinda Mills
Keyword(s):  
Natural Selection ◽  
Reproductive Success ◽  
The Netherlands ◽  
Child Survival ◽  
Average Height ◽  
Tall Stature ◽  
Age At First Birth ◽  
Number Of Children ◽  
The North ◽  
Rate Of Increase

The Dutch are the tallest people on earth. Over the last 200 years, they have grown 20 cm in height: a rapid rate of increase that points to environmental causes. This secular trend in height is echoed across all Western populations, but came to an end, or at least levelled off, much earlier than in The Netherlands. One possibility, then, is that natural selection acted congruently with these environmentally induced changes to further promote tall stature among the people of the lowlands. Using data from the LifeLines study, which follows a large sample of the population of the north of The Netherlands ( n = 94 516), we examined how height was related to measures of reproductive success (as a proxy for fitness). Across three decades (1935–1967), height was consistently related to reproductive output (number of children born and number of surviving children), favouring taller men and average height women. This was despite a later age at first birth for taller individuals. Furthermore, even in this low-mortality population, taller women experienced higher child survival, which contributed positively to their increased reproductive success. Thus, natural selection in addition to good environmental conditions may help explain why the Dutch are so tall.

Chip and Board Scale Transient Thermal Simulations for Power MOS Devices Reliability Analysis

2021 ◽  
Author(s):  
Madalin Vasile Moise ◽  
Paul Svasta ◽  
Norocel Codreanu ◽  
Ciprian Ionescu ◽  
Mihaela Pantazica ◽  
...  
Keyword(s):  
Reliability Analysis ◽  
Mos Devices ◽  
Transient Thermal ◽  
Thermal Simulations

Systematic Literature Review of the Natural Environment of the Coromandel Peninsula, New Zealand, from a Conservation Perspective

Conservation ◽  
2021 ◽  
Vol 1 (4) ◽  
pp. 270-284
Author(s):  
Vladyslav Zakharovskyi ◽  
Károly Németh
Keyword(s):  
New Zealand ◽  
Literature Review ◽  
Scientific Literature ◽  
Terrestrial Environment ◽  
Scientific Databases ◽  
Cultural Aspects ◽  
The North ◽  
Current State ◽  
Geological Evolution ◽  
Silver Mineralization

This research presents a literature review of published scientific literature on the Coromandel Peninsula, a well-known region of the northern part of the North Island of New Zealand. It contains many biological, geological, and historical features and is well known for beautiful scenery, resulting from a volcanic rock-dominated terrestrial environment influenced by oceanic factors at the coast. All these factors have combined to make the Coromandel a popular tourism destination for New Zealanders and offshore visitors. In researching the current state of knowledge of the region, we searched three scientific databases to define the main ways of studying the region. The results demonstrated a high interest in biological and environmental factors, reflected in the type and scale of conservation measures applied to flora and fauna of the region. Additionally, specificity of geological evolution was a highly examined subject, in the context of hydrothermal alteration as related to gold and silver mineralization resulting in extensive exploration and mining. Meanwhile, indigenous cultural aspects of the land were not recognizable as expected within Western scientific literature, even though the region contains sites recognized as some of the earliest Māori habitations. Therefore, we suggest future studies to expand our understanding of scientific, cultural, and social aspects of the region as applied to the field of conservation in the region.

scholarly journals The nuclear icebreaker fleet of Russia in the first quarter of the XXI century. Challenges and prospects for the development of the Northern Sea Route

2021 ◽  
pp. 14-25
Author(s):  
Ю.Л. Бордученко ◽  
И.Г. Малыгин ◽  
В.Ю. Каминский ◽  
В.А. Аксенов
Keyword(s):  
Decisive Role ◽  
Arctic Region ◽  
The Arctic ◽  
Arctic Seas ◽  
The Sustainable Development ◽  
The North ◽  
Russian Economy ◽  
Current State ◽  
Northern Sea Route ◽  
Transport Problems

Арктическая зона в XXI веке становится важнейшим гарантом устойчивого развития Российской Федерации. Вклад Севера в экономику России во многом будет определяться масштабами и темпами развития Арктической транспортной системы. Необходимо расширение коммерческого и научно-исследовательского судоходства, развитие транспортных узлов и коридоров, полярной авиации, грузопассажирских морских полярных перевозок. В этих условиях Россия в целях обеспечения своих геополитических интересов должна постоянно поддерживать активное присутствие в этом регионе. Оно выражается в проведении научных исследований, разведке и добыче полезных ископаемых, обеспечении морских грузоперевозок с использованием ледоколов и специализированных ледокольно-транспортных судов. Этого невозможно достичь без развития уникального атомного ледокольного флота. В настоящее время Россия является мировым лидером в области применения атомного ледокольного флота для решения транспортных задач в морях Арктики и неарктических замерзающих морях. Для успешной конкуренции России необходимо не упускать этого лидерства и постоянно развивать и совершенствовать атомный ледокольный флот как ключевое звено инфраструктуры функционирования Северного морского пути. В статье представлен краткий обзор текущего состояния и перспектив развития атомного ледокольного флота России. Показана определяющая роль атомного ледокольного флота в обеспечении судоходства по трассам Северного морского пути для развития экономики Арктического региона России. The Arctic zone in the XXI century is becoming the most important guarantor of the sustainable development of the Russian Federation. The contribution of the North to the Russian economy will largely be determined by the scale and pace of development of the Arctic Transport System. It is necessary to expand commercial and research shipping, develop transport hubs and corridors, polar aviation, and cargo and passenger sea polar transportation. In these circumstances, Russia must constantly maintain an active presence in this region in order to ensure its geopolitical interests. It is expressed in conducting scientific research, exploration and extraction of minerals, providing sea cargo transportation using icebreakers and specialized icebreaker-transport vessels. This cannot be achieved without the development of a unique nuclear icebreaker fleet. Currently, Russia is a world leader in the use of nuclear-powered icebreaking fleet for solving transport problems in the Arctic seas and non-Arctic freezing seas. For successful competition, Russia must not lose this leadership, constantly develop and improve the nuclear icebreaker fleet as a key link in the infrastructure of the Northern Sea Route. The article provides a brief overview of the current state and prospects for the development of the Russian nuclear icebreaker fleet. The article shows the decisive role of the nuclear icebreaker fleet in ensuring navigation along the Northern Sea Route for the development of the economy of the Arctic region of Russia.

scholarly journals Globalisation processes and tourism industry development in North-East Asia (Korea, China, Japan)

2021 ◽  
Vol 5 (S4) ◽  
pp. 927-941
Author(s):  
Den Sik Kan ◽  
Volodymyr M. Vasylchuk ◽  
Leonid V. Chuprii ◽  
Igor B. Datskiv ◽  
Kateryna P. Kravets
Keyword(s):  
South Korea ◽  
East Asia ◽  
Cultural Tourism ◽  
Tourism Industry ◽  
Eastern Region ◽  
Services Sector ◽  
North East ◽  
The North ◽  
Current State ◽  
Tourism Services

The paper covers relevant issues, such as the current state of the tourism services sector in China, Japan, and South Korea. The significance is confirmed by the growing role of the North-East Asian countries in the world trade in services and the growing contribution of tourism to the global gross domestic product. The purpose of this study is to identify the features, problems, and prospects for the development of the tourism services sector in China, Japan, and South Korea. The paper uses methods of systematisation and typification, which made it possible to determine the specifics of the development of cultural tourism in the Far Eastern region among the current range of opinions and areas of cultural tourism research. The study uses the principles of historicism and objectivity, which allowed analysing the development and current state of tourist exchange. A cultural approach was also used to reconstruct the cultural and humanitarian population of North-East Asia through the mutual enrichment of nations and people. The systematic approach made it possible to understand the importance of humanitarian exchange between people and identified the universality of tourism.

Geodynamics of the France Southeast Basin

2010 ◽  
Vol 181 (6) ◽  
pp. 477-501 ◽  
Author(s):  
Xavier Le Pichon ◽  
Claude Rangin ◽  
Youri Hamon ◽  
Nicolas Loget ◽  
Jin Ying Lin ◽  
...  
Keyword(s):  
Seismic Activity ◽  
Sedimentary Cover ◽  
Central Basin ◽  
The South ◽  
Western Basin ◽  
Active Deformation ◽  
The North ◽  
The Alps ◽  
Sediment Cover ◽  
Surrounding Areas

AbstractWe investigate the geodynamics of the Southeast Basin with the help of maps of the basement and of major sedimentary horizons based on available seismic reflection profiles and drill holes. We also present a study of the seismicity along the Middle Durance fault. The present seismic activity of the SE Basin cannot be attributed to the Africa/Eurasia shortening since spatial geodesy demonstrates that there is no significant motion of Corsica-Sardinia with respect to Eurasia and since gravitational collapse of the Alps has characterized the last few millions years. Our study demonstrates that the basement of this 140 by 200 km Triassic basin has been essentially undeformed since its formation, most probably because of the hardening of the cooling lithosphere after its 50% thinning during the Triassic distension. The regional geodynamics are thus dominated by the interaction of this rigid unit with the surrounding zones of active deformation. The 12 km thick Mesozoic sediment cover includes at its base an up to 4 km thick mostly evaporitic Triassic layer that is hot and consequently highly fluid. The sedimentary cover is thus decoupled from the basement. As a result, the sedimentary cover does not have enough strength to produce reliefs exceeding about 500 to 750 m. That the deformation and seismicity affecting the basin are the results of cover tectonics is confirmed by the fact that seismic activity in the basin only affects the sedimentary cover. Based on our mapping of the structure of the basin, we propose a simple mechanism accounting for the Neogene deformation of the sedimentary cover. The formation of the higher Alps has first resulted to the north in the shortening of the Diois-Baronnies sedimentary cover that elevated the top of Jurassic horizons by about 4 km with respect to surrounding areas to the south and west. There was thus passage from a brittle-ductile basement decollement within the higher Alps to an evaporitic decollement within the Diois-Baronnies. This shortening and consequent elevation finally induced the southward motion of the basin cover south of the Lure mountain during and after the Middle Miocene. This southward motion was absorbed by the formation of the Luberon and Trévaresse mountains to the south. To the east of the Durance fault, there is no large sediment cover. The seismicity there, is related to the absorption of the Alps collapse within the basement itself. To the west of the Salon-Cavaillon fault, on the other hand, gravity induces a NNE motion of the sedimentary cover with extension to the south and shortening to the north near Mont Ventoux. When considering the seismicity of this area, it is thus important to distinguish between the western Basin panel, west of the Salon-Cavaillon fault affected by very slow NNE gliding of the sedimentary cover, with extension to the south and shortening to the north; the central Basin panel west of the Durance fault with S gliding of the sedimentary cover and increasing shortening to the south; and finally the basement panel east of the Durance fault with intrabasement absorption of the Alps collapse through strike-slip and thrust faults.

V. KANDINSKY'S ARTICLE «NATIONAL DEITIES (ACCORDING TO MODERN BELIEFS) FROM THE MATERIALS ON ZYRYANE OF SYSOLA AND VYCHEGDA REGIONS' ETHNOGRAPHY» IN THE PARADIGM OF COLONIAL DISCOURSE

2020 ◽  
pp. 234-236
Author(s):  
Zinaida Gafurova
Keyword(s):  
National Identity ◽  
Negative Consequences ◽  
Colonial Discourse ◽  
The North ◽  
Current State ◽  
History Of

The article deals with the history of V. Kandinsky's work on ethnography, and analyzes the artist's approach to the study of the pagan culture of the Komi people and his assessment of its current state in the light of the paradigm of colonial discourse. The very work of Kandinsky, written on the basis of the materials of the ethnographic expedition he made to the North of Russia, was published over a hundred years ago. However, the issues of the domination of the majority over small nations raised by the great Russian artist and the negative consequences of this, expressed in the loss of their identical history and cultural phenomena of national identity, are extremely relevant in the context of the decolonization of history.

The Grief and Bereavement Experiences of Informal Caregivers: A Scoping Review of the North American Literature

2021 ◽  
pp. 082585972110522
Author(s):  
Neerjah Skantharajah ◽  
Carol Barrie ◽  
Sharon Baxter ◽  
M. Carolina Borja ◽  
Anica Butters ◽  
...  
Keyword(s):  
American Literature ◽  
Scoping Review ◽  
Informal Caregivers ◽  
Exclusion Criteria ◽  
The North ◽  
Current State ◽  
Grief And Bereavement ◽  
Hospice And Palliative Care ◽  
The Impact

Background Informal caregivers are a significant part of the hospice and palliative care landscape as members of the interdisciplinary care team. Despite this, little is known about the impact this responsibility has on informal caregivers’ experiences of grief and bereavement. To address this, a scoping review of the literature was conducted to explore the current state of knowledge toward grief and bereavement of informal caregivers of adult/geriatric patients in the hospice and palliative/end-of-life care realm within North America. Methods Using Arksey and O’Malley's 5-step framework, key electronic health care and social sciences databases (eg, CINAHL, MEDLINE, ProQuest Sociological Abstracts, PsycINFO) alongside gray literature sources were searched and screened against inclusion and exclusion criteria. A thematic content analysis was used to identify key themes. Results 29 articles met the final inclusion criteria with 3 central themes emerging: (1) mediators of grief, (2) grief experiences, and (3) types of grief. Discussion Informal caregivers encounter unique grief and bereavement experiences: The range of psychosocial outcomes, both negative and positive, can be affected by various mediators such as caregiver burden, demographics, disease type of the patient being cared for, etc. Bereavement interventions must be designed with the mediators of grief in mind. Conclusions Understanding the nuances of informal caregivers’ experiences with grief and bereavement will inform and advance practice, policy, and research. Practitioners/clinicians should be further educated on how to properly acknowledge the complexity of grief and bereavement for informal caregivers, specifically paying attention to mediators. Further research needs to consider the role of culture.

scholarly journals Moho depth of the British Isles: a probabilistic perspective

2020 ◽  
Vol 221 (2) ◽  
pp. 1384-1401
Author(s):  
A Licciardi ◽  
R W England ◽  
N Piana Agostinetti ◽  
K Gallagher
Keyword(s):  
Great Britain ◽  
Receiver Function ◽  
Moho Depth ◽  
British Isles ◽  
Data Types ◽  
The North ◽  
Data Driven Approach ◽  
Porcupine Basin ◽  
Reconstructed Surface ◽  
Surrounding Areas

SUMMARY We present a new Moho depth model of the British Isles and surrounding areas from the most up-to-date compilation of Moho depth estimates obtained from refraction, reflection and receiver function data. We use a probabilistic, trans-dimensional and hierarchical approach for the surface reconstruction of Moho topography. This fully data-driven approach allows for adaptive parametrization, assessment of relative importance between different data-types and uncertainties quantification on the reconstructed surface. Our results confirm the first order features of the Moho topography obtained in previous work such as deeper Moho (29–36 km) in continental areas (e.g. Ireland and Great Britain) and shallower Moho (12–22 km) offshore (e.g. in the Atlantic Ocean, west of Ireland). Resolution is improved by including recent available data, especially around the Porcupine Basin, onshore Ireland and Great Britain. NE trending features in Moho topography are highlighted above the Rockall High (about 28 km) and the Rockall Trough (with a NE directed deepening from 12 to about 20 km). A perpendicular SE oriented feature (Moho depth 26–28 km) is located between the Orkney and the Shetland, extending further SW in the North Sea. Onshore, our results highlight the crustal thinning towards the N in Ireland and an E–W oriented transition between deep (34 km) and shallow (about 28 km) Moho in Scotland. Our probabilistic results are compared with previous models showing overall differences around ±2 km, within the posterior uncertainties calculated with our approach. Bigger differences are located where different data are used between models or in less constrained areas where posterior uncertainties are high.

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