Full Year Drilling Season for Modu in Arctic Area

2021 ◽  
Author(s):  
Marc Cahay
Keyword(s):  
Arctic Area

Digitalisation for Improving Population Well-Being in the Arctic Area

2021 ◽  
pp. 105-117
Author(s):  
Valeria Rakova ◽  
Marina Bolsunovskaya ◽  
Arseny Zorin ◽  
Vladimir Fedorov ◽  
Yuliya Novikova
Keyword(s):  
Well Being ◽  
The Arctic ◽  
Arctic Area

Lack of Seasonal Variation in Menstrually-Related Migraine

Cephalalgia ◽  
2008 ◽  
Vol 28 (12) ◽  
pp. 1277-1281 ◽  
Author(s):  
SI Bekkelund ◽  
KB Alstadhaug ◽  
R Salvesen
Keyword(s):  
Seasonal Variation ◽  
Migraine Headache ◽  
Migraine Without Aura ◽  
Telephone Interview ◽  
Menstrual Migraine ◽  
Menstrually Related Migraine ◽  
Headache Diary ◽  
June July ◽  
Arctic Area ◽  
North Norway

The aim of the study was to study seasonal variation in migraine headache in a group of women with menstrually-related migraine (MRM) compared with non-menstrual migraine. Via newspaper advertisement, women with migraine living in North Norway were invited. The patients were included by questionnaire and telephone interview. We prospectively recorded migraine attacks from a 12-month headache diary performed by a group of 62 women with a mean age of 36.0 years (range 16-46 years), who fulfilled the criteria of migraine without aura. Of these, 29 had MRM and 33 non-menstrual migraine. Mean ratio between number of attacks in the light arctic season (May-June-July) divided with total number of migraine attacks during 12 months was 0.24 (9.4/38.4) in the group of MRM compared with 0.25 (5.6/22.1) in others (confidence interval -4.2, 6.3, P = 0.84). Nor were there more migraine attacks in the dark season in an arctic area (November-December-January) in any group. We found a higher migraine attack rate in those with MRM, but no indication of more or less frequency of attacks during the bright arctic season. These findings support the assumption that MRM and seasonal variation of migraine are due to different mechanisms.

Emissions and ambient air concentrations of isoprene, monoterpenes and sesquiterpenes at a Northern wetland

2020 ◽  
Author(s):  
Heidi Hellén ◽  
Simon Schallhart ◽  
Arnaud P. Praplan ◽  
Toni Tykkä ◽  
Mika Aurela ◽  
...  
Keyword(s):  
Snow Cover ◽  
Land Surface ◽  
Ambient Air ◽  
Chem Phys ◽  
Voc Emissions ◽  
Ambient Concentrations ◽  
Flow Through ◽  
Arctic Area ◽  
Atmospheric Concentrations ◽  
Air Concentrations

<p>Wetlands cover an area of about 2% of the total land surface area of the world and are most common in the boreal and tundra zones. Northern wetlands are important sinks for carbon dioxide and sources of methane, but knowledge on their VOC emissions is very limited. Currently, we know that northern wetlands are high isoprene emitters (e.g. Holst et al., 2010), but very little is known on the emissions of other VOCs.</p><p>We have studied VOC emissions and their ambient concentrations at a sub-Arctic wetland (Lompolojänkkä) in Northern Finland, using an in situ TD-GC-MS. For the emission measurements, a dynamic flow-through FEP chamber was used.</p><p>Earlier studies have shown that isoprene is emitted from wetlands and it turned out to be the most abundant compound in the current study also. Monoterpene (MT) emissions were generally less than 10 % of the isoprene emissions, but sesquiterpenes (SQT) emissions were surprisingly high, exceeding MT emissions at all times. Both MT and SQT emissions were dependent on temperature.</p><p>Even with the higher emissions from the wetland, ambient air concentrations of isoprene were clearly lower than MT concentrations. This indicates that wetland was not the only source affecting atmospheric concentrations at the site, but surrounding coniferous forests, which are high MT emitters, contribute as well. In May concentrations of SQTs and MTs at Lompolojänkkä were higher than in earlier boreal forest measurements in southern Finland (Hellén et al., 2018). At that time, the snow cover on the ground was melting and soil thawing and VOCs produced under the snow cover, e.g. by microbes and decaying litter, can be released to the air. Daily mean MT concentrations were very highly negatively correlated with daily mean ozone concentrations indicating that vegetation emissions can be a significant chemical sink of ozone at this sub-Arctic area.</p><p>References</p><p>Hellén, H.et al. 2018, Atmos. Chem. Phys., 18, 13839-13863, https://doi.org/10.5194/acp-18-13839-2018.</p><p>Holst, T., et al. 2010, Atmos. Chem. Phys., 10, 1617-1634, https://doi.org/10.5194/acp-10-1617-2010.</p>

Administrative Legal Regime in the Arctic Area

2015 ◽  
Vol 3 (11) ◽  
pp. 0-0
Author(s):  
Владимир Кузнецов ◽  
Vladimir Kuznetsov
Keyword(s):  
Russian Federation ◽  
Social Relations ◽  
Legal Regulation ◽  
The Arctic ◽  
Arctic Zone ◽  
Legal Regime ◽  
Management Procedure ◽  
The Russian Federation ◽  
Northern Territories ◽  
Arctic Area

The development of the Russian Northern territories is not only a domestic problem of this country, but also a global one. The Polar region, which is also called the Arctic area, attracts many and requires concentration of all forces on the solution of the problem of its development in the economic, social, military and strategic dimensions. In proportion to these circumstances, the role of legal aspects in the developing and emerging social relations also increases. Legal regulation for these parts of the Russian Northern territories and adjacent waters of the Arctic Ocean, constituting the Arctic zone of the Russian Federation, requires certain uniformity. This can be achieved by improving public administration over the Arctic zone of the Russian Federation, legislative recognition of its special status and the establishment of special regimes for natural resources, environmental protection, regulation of navigation along the seaways of the Northern sea route. It involves the formation of a special management procedure, i.e. the formation of a special administrative-legal regime. This is a complex task that requires scientific understanding of the problems that have a significant impact on the formation of the administrative legal regime in the Arctic zone of the Russian Federation.

scholarly journals Sensitivity Analysis for Iceberg Geometry Shape in Ship-Iceberg Collision in View of Different Material Models

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Yan Gao ◽  
Zhiqiang Hu ◽  
Jin Wang
Keyword(s):  
Energy Dissipation ◽  
Impact Force ◽  
Material Model ◽  
Shape Effect ◽  
Collision Process ◽  
Material Models ◽  
Local Shape ◽  
Simulation Process ◽  
Small Influence ◽  
Arctic Area

The increasing marine activities in Arctic area have brought growing interest in ship-iceberg collision study. The purpose of this paper is to study the iceberg geometry shape effect on the collision process. In order to estimate the sensitivity parameter, five different geometry iceberg models and two iceberg material models are adopted in the analysis. The FEM numerical simulation is used to predict the scenario and the related responses. The simulation results including energy dissipation and impact force are investigated and compared. It is shown that the collision process and energy dissipation are more sensitive to iceberg local shape than other factors when the elastic-plastic iceberg material model is applied. The blunt iceberg models act rigidly while the sharp ones crush easily during the simulation process. With respect to the crushable foam iceberg material model, the iceberg geometry has relatively small influence on the collision process. The spherical iceberg model shows the most rigidity for both iceberg material models and should be paid the most attention for ice-resist design for ships.

Season and mental illness in an arctic area of northern Finland

1994 ◽  
Vol 89 (s377) ◽  
pp. 46-49 ◽  
Author(s):  
S. Näyhä ◽  
E. Väisänen ◽  
J. Hassi
Keyword(s):  
Mental Illness ◽  
Arctic Area
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