Long-Term Studies: Northeastern Gulf of Mexico

2002 ◽  
pp. 43-46
Keyword(s):  
Gulf Of Mexico ◽  
Northeastern Gulf Of Mexico ◽  
Long Term Studies

Ecological Connectivity in Northeastern Gulf of Mexico – The Deep-C Initiative

2014 ◽  
Vol 2014 (1) ◽  
pp. 1972-1984 ◽  
Author(s):  
Felicia C. Coleman ◽  
Jeffrey P. Chanton ◽  
Eric P. Chassignet
Keyword(s):  
Gulf Of Mexico ◽  
Oil And Gas ◽  
Chemical Constituents ◽  
Deepwater Horizon ◽  
Decay Rates ◽  
Delayed Response ◽  
Marine Food Webs ◽  
Northeastern Gulf Of Mexico ◽  
Oil Exposure

ABSTRACT The Deepwater Horizon blowout injected massive quantities of carbon in the form of crude oil and gas into the otherwise oligotrophic northeastern Gulf of Mexico. This sudden and unprecedented event dramatically affected ecosystem function, reverberating throughout the physical, chemical, and biological realms. Characterizing the acute and chronic effects of the spill set the stage for the Deep-C Consortium's focus on the geomorphologic, hydrologic, and biogeochemical settings that influence the distribution and fate of oil and its impact on the ecology in the region. Detecting the chemical constituents of oil and the decay rates and by-products of biodegradation has enhanced our qualitative and quantitative accounting of “missing” oil and allowed the assessment of the sensitivity of marine organisms to specific compounds. The delayed response of oil-eating microbes created lags in carbon biodegradation that allowed ecological damage to occur. Microbes themselves appear to serve as conduits delivering petroleum-based carbon to marine food webs. While this carbon appears at the other end of the trophic spectrum — in deep-sea animals either actually or virtually unknown to science — the levels measured in their tissues are relatively low, which begs the question, “Does oil exposure affect their life history and general health?” To address this question and predict the long-term ecological effects of the Deepwater Horizon oil spill, we are incorporating historical and newly-derived data into linked food web-earth system models that can forecast how spills impact ecological and economic communities, including human health. This approach also provides a powerful tool for identifying data gaps that require our attention, and assessing the influences of hydrocarbon releases on biological productivity in the Gulf of Mexico ecosystem.

Implications of Long-Term Studies of Three Model Preschool Programs for Head Start

2008 ◽  
Author(s):  
Lawrence J. Schweinhart ◽  
Elena V. Malofeeva ◽  
Lawrence J. Schweinhart ◽  
Michelle M. Englund ◽  
Arthur J. Reynolds ◽  
...  
Keyword(s):  
Head Start ◽  
Preschool Programs ◽  
Long Term Studies

Primary varicose veins

Phlebologie ◽  
2010 ◽  
Vol 39 (03) ◽  
pp. 133-137
Author(s):  
H. Partsch
Keyword(s):  
Varicose Veins ◽  
Compression Therapy ◽  
Daily Practice ◽  
Clinical Severity ◽  
Compression Stockings ◽  
Primary Varicose Veins ◽  
The Cost ◽  
Convincing Data ◽  
Long Term Studies

SummaryBackground: Compression stockings are widely used in patients with varicose veins. Methods: Based on published literature three main points are discussed: 1. the rationale of compression therapy in primary varicose veins, 2. the prescription of compression stockings in daily practice, 3. studies required in the future. Results: The main objective of prescribing compression stockings for patients with varicose veins is to improve subjective leg complaints and to prevent swelling after sitting and standing. No convincing data are available concerning prevention of progression or of complications. In daily practice varicose veins are the most common indication to prescribe compression stockings. The compliance depends on the severity of the disorder and is rather poor in less severe stages. Long-term studies are needed to proof the cost-effectiveness of compression stockings concerning subjective symptoms and objective signs of varicose veins adjusted to their clinical severity. Conclusion: Compression stockings in primary varicose veins are able to improve leg complaints and to prevent swelling.

Diatoms and aquatic palynomorphs in the sediments of the Eurasian Arctic seas and their significance for paleooceanological investigations in the Arctic

2019 ◽  
pp. 246-251
Author(s):  
Yelena I. Polyakova ◽  
Yekaterina I. Novichkova ◽  
Tatiana S. Klyuvitkina ◽  
Elizaveta A. Agafonova ◽  
Irina M. Kryukova
Keyword(s):  
Bering Sea ◽  
Surface Sediments ◽  
Sea Water ◽  
The Arctic ◽  
Marginal Filter ◽  
Arctic Seas ◽  
Hydrological Parameters ◽  
The Arctic Ocean ◽  
Long Term Studies

Presented the results of long-term studies of diatoms and aquatic palynomorphs in surface sediments of the Arctic seas and the possibility of their use for the reconstructions of paleocirculation water masses, advection of Atlantic and Bering sea water into the Arctic ocean, changes in the river runoff to the seas, sedimentary processes in the marginal filter of the largest rivers, seasonal sea ice cover and other hydrological parameters.

Aspects of the Evolution of the Romanian Tourists’ Preferences Concerning the Domestic Tourist Destinations

2019 ◽  
Vol 10 (1) ◽  
pp. 21-28
Author(s):  
Aniela Bălăcescu ◽  
Radu Șerban Zaharia
Keyword(s):  
Logistic Model ◽  
Local Level ◽  
Medium Term ◽  
Tourist Destinations ◽  
Tourism Management ◽  
Production And Consumption ◽  
On Line ◽  
The One ◽  
Long Term Studies

Abstract Tourist services represent a category of services in which the inseparability of production and consumption, the inability to be storable, the immateriality, and last but not least non-durability, induces in tourism management a number of peculiarities and difficulties. Under these circumstances the development of medium-term strategies involves long-term studies regarding on the one hand the developments and characteristics of the demand, and on the other hand the tourist potential analysis at regional and local level. Although in the past 20 years there has been tremendous growth of on-line booking made by household users, the tour operators agencies as well as those with sales activity continue to offer the specific services for a large number of tourists, that number, in the case of domestic tourism, increased by 1.6 times in case of the tour operators and by 4.44 times in case of the agencies with sales activity. At the same time, there have been changes in the preferences of tourists regarding their holiday destinations in Romania. Started on these considerations, paper based on a logistic model, examines the evolution of the probabilities and scores corresponding to the way the Romanian tourists spend their holidays on the types of tourism agencies, actions and tourist areas in Romania.

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