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Sample records for helena kruus gert

  1. Gert Finger Becomes Emeritus Physicist

    NASA Astrophysics Data System (ADS)

    de Zeeuw, T.; Lucuix, C.; Péron, M.

    2016-03-01

    Gert Finger has retired after almost 33 years service and he has been made the first Emeritus Physicist at ESO. An appreciation of some of his many achievements in the development of infrared instrumentation and detector controllers is given. A retirement party for Gert Finger was held in February 2016.

  2. Cecilia Helena Payne-Gaposchkin

    NASA Astrophysics Data System (ADS)

    Braden, Antony; Contreras, Adelso

    2009-10-01

    This project will briefly tell the story of one of the 20^th century's most prominent astronomers, who through perseverance triumphed at the center of astrophysics. It also tells the story of the rough times in which Cecilia Helena Payne-Gaposchkin lived in as women then were held to much lower standards than they are today and endured unjust conditions. It also provides an analysis of the evolution of the astrophysics of stellar composition over a lengthy and prosperous career.

  3. Introducing a short version of the Geneva Emotion Recognition Test (GERT-S): Psychometric properties and construct validation.

    PubMed

    Schlegel, Katja; Scherer, Klaus R

    2016-12-01

    The ability to accurately interpret others' emotional expressions in the face, voice, and body is a crucial component of successful social functioning and has been shown to predict better outcomes in private and professional life. To date, emotion recognition ability (ERA) has mostly been measured with tests that heavily rely on static pictures of the face and on few emotions, restricting their content validity. Recently, Schlegel, Grandjean, and Scherer (Psychological Assessment, 26, 666-672, 2014) published a new test that measures ERA in a more comprehensive fashion, by (1) including a wide range of 14 positive and negative emotions and (2) using video clips with sound that simultaneously present facial, vocal, and bodily emotional cues. This article introduces the short version of the Geneva Emotion Recognition Test (the GERT-S), and presents two studies (total N = 425) that examine the internal consistency, factor structure, and convergent and discriminant validity of the test. The results show that the GERT-S is a unidimensional test with good internal consistency. Furthermore, the GERT-S was substantially positively correlated with other ERA tests, with tests of emotional understanding and emotion management, and with cognitive ability. Taken together, the present studies demonstrate the usefulness of the GERT-S as an instrument for the brief and reliable assessment of ERA. It is available, free of charge and in seven different languages, for academic research use. Given the brief test-taking time (approx. 10 min) and its possible administration via different online platforms, the GERT-S can easily be integrated by researchers into their own studies.

  4. Gert's moral theory and its application to bioethics cases.

    PubMed

    Strong, Carson

    2006-03-01

    Bernard Gert's theory of morality has received much critical attention, but there has been relatively little commentary on its practical value for bioethics. An important test of an ethical theory is its ability to yield results that are helpful and plausible when applied to real cases. An examination of Gert's theory and his own attempts to apply it to bioethics cases reveals that there are serious difficulties with regard to its application. These problems are sufficiently severe to support the conclusion that Gert's theory is unacceptable as an approach for resolving bioethics cases, even relatively noncontroversial cases.

  5. 27 CFR 9.149 - St. Helena.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... contour line through Sections 10 (projected), 11, 12, 13, 24 and 25 in T8N, R6W, Section 30 in T8N, R5W... three U.S.G.S. 7.5 minute series topographical maps of the 1:24,000 scale. They are titled: (1) St. Helena Quadrangle, California, edition of 1960, revised 1993; (2) Calistoga Quadrangle, California...

  6. 27 CFR 9.149 - St. Helena.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... contour line through Sections 10 (projected), 11, 12, 13, 24 and 25 in T8N, R6W, Section 30 in T8N, R5W... three U.S.G.S. 7.5 minute series topographical maps of the 1:24,000 scale. They are titled: (1) St. Helena Quadrangle, California, edition of 1960, revised 1993; (2) Calistoga Quadrangle, California...

  7. Insights from an Editor's Journey: An Interview with Gert Biesta

    ERIC Educational Resources Information Center

    Teschers, Christoph

    2017-01-01

    Gert J. J. Biesta is a widely known and respected scholar in the field of education. He has published a large number of articles, books, chapters and other work. He is currently professor of Education in the Department of Education at Brunel University London. This interview with Biesta touched on a wide range of topics. This article is a…

  8. Insights from an Editor's Journey: An Interview with Gert Biesta

    ERIC Educational Resources Information Center

    Teschers, Christoph

    2017-01-01

    Gert J. J. Biesta is a widely known and respected scholar in the field of education. He has published a large number of articles, books, chapters and other work. He is currently professor of Education in the Department of Education at Brunel University London. This interview with Biesta touched on a wide range of topics. This article is a…

  9. 78 FR 22416 - Amendment of Class E Airspace; St. Helena, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-16

    ... Class E airspace for St. Helena, CA. St. Helena Fire Department Heliport has been changed to Napa County... requested the change to the airport name of Napa County Fire Department Heliport, St. Helena, CA. The Class... Class E airspace extending upward from 700 feet above the surface at St. Helena, CA, to Napa County...

  10. Water resources of St. Helena Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.; Prakken, Lawrence B.

    2016-07-27

    Information concerning the availability, use, and quality of water in St. Helena Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  11. Manuel Johnson's Tide Record at St. Helena

    NASA Technical Reports Server (NTRS)

    Cartwright, David E.; Woodworth, Philip L.; Ray, Richard D.

    2017-01-01

    The astronomer Manuel Johnson, a future President of the Royal Astronomical Society, recorded the ocean tides with his own instrument at St. Helena in 1826-1827, while waiting for an observatory to be built. It is an important record in the history of tidal science, as the only previous measurements at St. Helena had been those made by Nevil Maskelyne in 1761, and there were to be no other systematic measurements until the late 20th century. Johnsons tide gauge, of a curious but unique design, recorded efficiently the height of every tidal high and low water for at least 13 months, in spite of requiring frequent re-setting. These heights compare very reasonably with a modern tidal synthesis based on present-day tide gauge measurements from the same site.Johnsons method of timing is unknown, but his calculations of lunar phases suggest that his tidal measurements were recorded in Local Apparent Time. Unfortunately, the recorded times are found to be seriously and variably lagged by many minutes. Johnsons data have never been fully published, but his manuscripts have been safely archived and are available for inspection at Cambridge University. His data have been converted to computerfiles as part of this study for the benefit of future researchers.

  12. Manuel Johnson's tide record at St. Helena

    NASA Astrophysics Data System (ADS)

    Cartwright, David E.; Woodworth, Philip L.; Ray, Richard D.

    2017-03-01

    The astronomer Manuel Johnson, a future President of the Royal Astronomical Society, recorded the ocean tides with his own instrument at St. Helena in 1826-1827, while waiting for an observatory to be built. It is an important record in the history of tidal science, as the only previous measurements at St. Helena had been those made by Nevil Maskelyne in 1761, and there were to be no other systematic measurements until the late 20th century. Johnson's tide gauge, of a curious but unique design, recorded efficiently the height of every tidal high and low water for at least 13 months, in spite of requiring frequent re-setting. These heights compare very reasonably with a modern tidal synthesis based on present-day tide gauge measurements from the same site. Johnson's method of timing is unknown, but his calculations of lunar phases suggest that his tidal measurements were recorded in Local Apparent Time. Unfortunately, the recorded times are found to be seriously and variably lagged by many minutes. Johnson's data have never been fully published, but his manuscripts have been safely archived and are available for inspection at Cambridge University. His data have been converted to computer files as part of this study for the benefit of future researchers.

  13. 40 CFR 81.169 - Helena Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Helena Intrastate Air Quality Control Region. 81.169 Section 81.169 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... Control Regions § 81.169 Helena Intrastate Air Quality Control Region. The Helena Intrastate Air...

  14. 77 FR 42694 - Helena National Forest, Montana, Telegraph Vegetation Project

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-20

    ... trees followed by prescribed burning within the Jericho Mountain Inventoried Roadless Area. The Helena... mountain pine beetle outbreak in this area by recovering economic value of dead and dying trees, promoting... through Friday. SUPPLEMENTARY INFORMATION: Purpose and Need for Action Wide-scale tree mortality...

  15. Maria Helena Novaes--Creative Person, Creative Life

    ERIC Educational Resources Information Center

    de Alencar, Eunice M. L. Soriano

    2014-01-01

    This article describes the characteristics and accomplishments of Maria Helena Novaes, one of the most creative school psychologists of Brazil. It identifies the people who influenced her and some of the factors that may have contributed to her achievements and rise to eminence. It highlights the numerous opportunities she received during her life…

  16. Maria Helena Novaes--Creative Person, Creative Life

    ERIC Educational Resources Information Center

    de Alencar, Eunice M. L. Soriano

    2014-01-01

    This article describes the characteristics and accomplishments of Maria Helena Novaes, one of the most creative school psychologists of Brazil. It identifies the people who influenced her and some of the factors that may have contributed to her achievements and rise to eminence. It highlights the numerous opportunities she received during her life…

  17. On the Need to Ask Educational Questions about Education: An Interview with Gert Biesta

    ERIC Educational Resources Information Center

    Saeverot, Herner

    2013-01-01

    This interview attempts to articulate what it might mean to speak for "Padagogik" in an era where new trends in education run the risk of marginalizing "Padagogik" as an independent academic discipline. This trend can be found in several European countries and is judged by Herner Saeverot and Gert Biesta to be a development…

  18. 76 FR 30422 - Notice of Intent To Rule on Request To Release Airport Property at the Helena Regional Airport...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-25

    ... on Request To Release Airport Property at the Helena Regional Airport, Helena, Montana AGENCY... Release Airport Property. SUMMARY: The FAA proposes to rule and invite public comment on the release of land at Helena Regional Airport (HLN) under the provisions of Section 125 of the Wendell H....

  19. 76 FR 28065 - Notice of Intent To Repatriate a Cultural Item: Montana Historical Society, Helena, MT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-13

    ... National Park Service Notice of Intent To Repatriate a Cultural Item: Montana Historical Society, Helena... repatriate a cultural item in the possession of the Montana Historical Society, Helena, MT, that meets the... Territory, between 1884 and 1886. In 1892, Allen loaned it to the Montana Historical Society....

  20. Expression of the Retrotransposon Helena Reveals a Complex Pattern of TE Deregulation in Drosophila Hybrids

    PubMed Central

    Romero-Soriano, Valèria; Garcia Guerreiro, Maria Pilar

    2016-01-01

    Transposable elements (TEs), repeated mobile sequences, are ubiquitous in the eukaryotic kingdom. Their mobilizing capacity confers on them a high mutagenic potential, which must be strongly regulated to guarantee genome stability. In the Drosophila germline, a small RNA-mediated silencing system, the piRNA (Piwi-interacting RNA) pathway, is the main responsible TE regulating mechanism, but some stressful conditions can destabilize it. For instance, during interspecific hybridization, genomic stress caused by the shock of two different genomes can lead, in both animals and plants, to higher transposition rates. A recent study in D. buzatii—D. koepferae hybrids detected mobilization of 28 TEs, yet little is known about the molecular mechanisms explaining this transposition release. We have characterized one of the mobilized TEs, the retrotransposon Helena, and used quantitative expression to assess whether its high transposition rates in hybrids are preceded by increased expression. We have also localized Helena expression in the gonads to see if cellular expression patterns have changed in the hybrids. To give more insight into changes in TE regulation in hybrids, we analysed Helena-specific piRNA populations of hybrids and parental species. Helena expression is not globally altered in somatic tissues, but male and female gonads have different patterns of deregulation. In testes, Helena is repressed in F1, increasing then its expression up to parental values. This is linked with a mislocation of Helena transcripts along with an increase of their specific piRNA levels. Ovaries have additive levels of Helena expression, but the ping-pong cycle efficiency seems to be reduced in F1 hybrids. This could be at the origin of new Helena insertions in hybrids, which would be transmitted to F1 hybrid female progeny. PMID:26812285

  1. Gastrointestinal diseases of Napoleon in Saint Helena: causes of death.

    PubMed

    Di Costanzo, Jacques

    2002-01-01

    The fact that Napoleon Ist died from gastric cancer seems to be well established. Arguments for the hypothesis of chronic arsenic poisoning have recently been developed in the literature. This study, focused on the gastrointestinal diseases of Napoleon in Saint Helena, is based on a confrontation between the clinical semiological anamnesis and the anatomical data in the autopsy report by F. Antommarchi. Napoleon presented several gastrointestinal diseases: gall-bladder lithiasis complicated with angiocholitis, chronic colitis and certainly a gastric cancer. Death was consecutive to perforation of the gastric lesion leading to haemorrhagic vomitis and multiorgan failure. The description of the gastric lesions during autopsy is consistent with the diagnosis of cancer. The course of the clinical events is closely correlated with the anatomic lesions. There is strong evidence that Napoleon died from an acute complication of his gastric disease.

  2. Dietary sources of sugars in adolescents' diet: the HELENA study.

    PubMed

    Mesana, M I; Hilbig, A; Androutsos, O; Cuenca-García, M; Dallongeville, J; Huybrechts, I; De Henauw, S; Widhalm, K; Kafatos, A; Nova, E; Marcos, A; González-Gross, M; Molnar, D; Gottrand, F; Moreno, L A

    2016-11-29

    To report dietary sugars consumption and their different types and food sources, in European adolescents. Food consumption data of selected groups were obtained from 1630 adolescents (45.6% males, 12.5-17.5 years) from the HELENA study using two nonconsecutive 24-h recalls. Energy intake, total sugars and free sugars were assessed using the HELENA-DIAT software. Multiple regression analyses were performed adjusting for relevant confounders. Total sugars intake (137.5 g/day) represented 23.6% and free sugars (110.1 g/day), 19% of energy intake. Girls had significantly lower intakes of energy, carbohydrates, total sugars and free sugars. 94% of adolescents had a consumption of free sugars above 10% of total energy intake. The main food contributor to free sugars was 'carbonated, soft and isotonic drinks,' followed by 'non-chocolate confectionary' and 'sugar, honey, jam and syrup.' Older boys and girls had significantly higher intakes of free sugars from 'cakes, pies and biscuits.' Free sugars intake was negatively associated with low socioeconomic status for 'non-chocolate confectionary' and 'sugar, honey and jam' groups; with low maternal educational level for carbonated and 'soft drinks,' 'sugar, honey and jam,' 'cakes and pies' and 'breakfast cereals' groups; and with high paternal educational level for 'carbonated and soft drinks' and 'chocolates' group. The majority (94%) of studied adolescents consumed free sugars above 10% of daily energy intake. Our data indicate a broad variety in foods providing free sugars. Continued efforts are required at different levels to reduce the intake of free sugars, especially in families with a low educational level.

  3. Beverage consumption among European adolescents in the HELENA study.

    PubMed

    Duffey, K J; Huybrechts, I; Mouratidou, T; Libuda, L; Kersting, M; De Vriendt, T; Gottrand, F; Widhalm, K; Dallongeville, J; Hallström, L; González-Gross, M; De Henauw, S; Moreno, L A; Popkin, B M

    2012-02-01

    Our objective was to describe the fluid and energy consumption of beverages in a large sample of European adolescents. We used data from 2741 European adolescents residing in 8 countries participating in the Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study (HELENA-CSS). We averaged two 24-h recalls, collected using the HELENA-dietary assessment tool. By gender and age subgroup (12.5-14.9 years and 15-17.5 years), we examined per capita and per consumer fluid (milliliters (ml)) and energy (kilojoules (kJ)) intake from beverages and percentage consuming 10 different beverage groups. Mean beverage consumption was 1611 ml/day in boys and 1316 ml/day in girls. Energy intake from beverages was about 1966 kJ/day and 1289 kJ/day in European boys and girls, respectively, with sugar-sweetened beverages (SSBs) (carbonated and non-carbonated beverages, including soft drinks, fruit drinks and powders/concentrates) contributing to daily energy intake more than other groups of beverages. Boys and older adolescents consumed the most amount of per capita total energy from beverages. Among all age and gender subgroups, SSBs, sweetened milk (including chocolate milk and flavored yogurt drinks all with added sugar), low-fat milk and fruit juice provided the highest amount of per capita energy. Water was consumed by the largest percentage of adolescents followed by SSBs, fruit juice and sweetened milk. Among consumers, water provided the greatest fluid intake and sweetened milk accounted for the largest amount of energy intake followed by SSBs. Patterns of energy intake from each beverage varied between countries. European adolescents consume an average of 1455 ml/day of beverages, with the largest proportion of consumers and the largest fluid amount coming from water. Beverages provide 1609 kJ/day, of which 30.4%, 20.7% and 18.1% comes from SSBs, sweetened milk and fruit juice, respectively.

  4. Beverage consumption among European adolescents in the HELENA Study

    PubMed Central

    Duffey, K.J.; Huybrechts, I.; Mouratidou, T.; Libuda, L.; Kersting, M.; DeVriendt, T.; Gottrand, F.; Widhalm, K.; Dallongeville, J.; Hallström, L.; González-Gross, M.; DeHenauw, S.; Moreno, L.A.; Popkin, B.M.

    2012-01-01

    Background and Objective Our objective was to describe the fluid and energy consumption of beverages in a large sample of European adolescents Methods We used data from 2,741 European adolescents residing in 8 countries participating in the Healthy Lifestyle in Europe by Nutrition in Adolescence Cross Sectional Study (HELENA-CSS). We averaged two 24-hour recalls, collected using the HELENA-dietary assessment tool. By gender and age subgroup (12.5–14.9 y and 15–17.5 y), we examined per capita and per consumer fluid (milliliters [mL]) and energy (kilojoules [kJ]) intake from beverages and percent consuming ten different beverage groups. Results Mean beverage consumption was 1611 ml/d in boys and 1316 ml/d in girls. Energy intake from beverages was about 1966 kJ/d and 1289 kJ/d in European boys and girls respectively, with sugar-sweetened beverages (carbonated and non-carbonated beverages, including soft drinks, fruit drinks and powders/concentrates) contributing to daily energy intake more than other groups of beverages. Boys and older adolescents consumed the most amount of per capita total energy from beverages. Among all age and gender subgroups sugar-sweetened beverages, sweetened milk (including chocolate milk and flavored yogurt drinks all with added sugar), low-fat milk, and fruit juice provided the highest amount of per capita energy. Water was consumed by the largest percent of adolescents followed by sugar-sweetened beverages, fruit juice, and sweetened milk. Among consumers, water provided the greatest fluid intake and sweetened milk accounted for the largest amount of energy intake followed by sugar-sweetened beverages. Patterns of energy intake from each beverage varied between countries. Conclusions European adolescents consume an average of 1455 ml/d of beverages, with the largest proportion of consumers and the largest fluid amount coming from water. Beverages provide 1609 kJ/d, of which 30.4%, 20.7%, and 18.1% comes from sugar-sweetened beverages

  5. 77 FR 31421 - Culturally Significant Objects Imported for Exhibition Determinations: “Portrait of Helena de Kay”

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-25

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF STATE Culturally Significant Objects Imported for Exhibition Determinations: ``Portrait of Helena de Kay'' SUMMARY... object to be included in the exhibition ``Portrait of Helena de Kay,'' imported from abroad for...

  6. Toward a Theory of the Educational Encounter: Gert Biesta's Educational Theory and the Right to the City

    ERIC Educational Resources Information Center

    Ford, Derek R.

    2013-01-01

    This paper outlines a theory of the educational encounter, the space of, and the right to that encounter. Situated in response to neoliberal educational reforms, this theory is developed through a reading and synthesis of the educational theory of Gert Biesta, the architectural component of his theory, and literature on the right to the city. The…

  7. Toward a Theory of the Educational Encounter: Gert Biesta's Educational Theory and the Right to the City

    ERIC Educational Resources Information Center

    Ford, Derek R.

    2013-01-01

    This paper outlines a theory of the educational encounter, the space of, and the right to that encounter. Situated in response to neoliberal educational reforms, this theory is developed through a reading and synthesis of the educational theory of Gert Biesta, the architectural component of his theory, and literature on the right to the city. The…

  8. Metalliferous deposits of the greater Helena mining region, Montana

    USGS Publications Warehouse

    Pardee, Joseph Thomas; Schrader, F.C.

    1933-01-01

    The ore deposits described in this bulletin are distributed through a region of about 3,000 square miles surrounding the city of Helena, Mont. In general the surface of this region is mountainous, but it includes several large intermontane valleys. Large areas in the northern and eastern parts of the region sire underlain by sedimentary rocks of the Algonkian Belt series, and on the northeast and southwest the Belt rocks are overlain without any noticeable angular unconformity by Paleozoic and Mesozoic beds. Oligocene, Miocene, and possibly Pliocene sediments, composed chiefly of volcanic ash and land waste of local origin, occupy large areas in the intermontane valleys and lie unconformably upon Cretaceous and older rocks. A thin veneer of Pleistocene and Recent alluvium generally overspreads the Tertiary. In the extreme northern part of the region are large deposits of glacial drift that represent two stages of the Pleistocene. The principal igneous body of the region is the northern part of the early Tertiary or late Cretaceous Boulder batholitb of quartz monzonite. The main exposure of this body occupies an area of nearly 1,200 square miles and extends southward beyond the limits of the particular region considered. Smaller areas of similar rocks are clustered around this exposure. Most of the exposures probably represent bodies that are connected in depth to form a single mass. The late Cretaceous and older sedimentary rocks are involved in a series of northwestward-trending folds. Along the east side of the region overthrust faults related to the great Lewis overthrust of Glacier National Park cause Belt rocks to overlie rocks of Paleozoic and Mesozoic ages. Large normal faults occur near Marysville and faults of moderate displacement near Helena. The Tertiary beds are slightly deformed by folds and faults that are unrelated to the structure of the older rock. The geologic history of the region includes two contrasting periods, the earlier of which was

  9. 75 FR 72784 - Helena National Forest; Montana; Blackfoot Travel Plan EIS

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-26

    ... Forest Service Helena National Forest; Montana; Blackfoot Travel Plan EIS AGENCY: Forest Service, USDA. ACTION: Corrected Notice of Intent to prepare an Environmental Impact Statement for the Blackfoot Travel Plan. SUMMARY: This notice extends the comment period for the Blackfoot Travel Plan from November 30...

  10. Guided Educational Tourism as Informal Physical Geography Education on St. Helena Island, Michigan

    ERIC Educational Resources Information Center

    Lane, Joseph M.; Stoltman, Joseph P.

    2017-01-01

    Guided educational tours are a major activity within informal education. This article examines the potential for tour guides of a largely historical tour of St. Helena Island, Michigan, to include physical geography within the tour. Using field data and interview methods, the researchers identified the physical features of the island that could be…

  11. Lithium in rocks from the Lincoln, Helena, and Townsend areas, Montana

    USGS Publications Warehouse

    Brenner-Tourtelot, Elizabeth F.; Meier, Allen L.; Curtis, Craig A.

    1978-01-01

    In anticipation of increased demand for lithium for energy-related uses, the U.S. Geological Survey has been appraising the lithium resources of the United States and investigating occurrences of lithium. Analyses of samples of chiefly lacustrine rocks of Oligocene age collected by M. R. Mudge near Lincoln, Mont. showed as much as 1,500 ppm lithium. Since then we have sampled the area in greater detail, and have sampled rocks of similar ages in the Helena and Townsend valleys. The lithium-rich beds crop out in a band about 1.3 km long by 0.3 km wide near the head of Beaver Creek, about 14 km northwest of Lincoln, Mont. These beds consist of laminated marlstone, oil shale, carbonaceous shale, limestone, conglomerate, and tuff. Some parts of this sequence average almost 0.1 percent lithium. The lithium-bearing rocks are too low in grade and volume to be economic. Samples of sedimentary rocks of Oligocene age from the Helena and Townsend valleys in the vicinity of Helena, Mont. were generally low in lithium (3-40 ppm). However, samples of rhyolites from the western side of the Helena valley and from the Lava Mountain area were slightly above average in lithium content (6-200 ppm).

  12. [Book review] Fish and fishes of Saint Helena Island, by Alasdair J. Edwards

    USGS Publications Warehouse

    Smith-Vaniz, W.F.

    1991-01-01

    Review of: FISH AND FISHERIES OF SAINT HELENA ISLAND. By AlasdairJ. Edwards. 1990. Available from the author, Department of Biology, Ridley Building, University of Newcastle upon Tyne, NE1 7RU, England, 152 p., 24 p. color plates, £14.50 (or US$25.) surface, £17.00 (or US$30.)

  13. First Step Towards a Coastal Modelling System for South Africa: a St. Helena Bay Case Study

    NASA Astrophysics Data System (ADS)

    Collins, C.; Lamont, T.; Loveday, B. R.; Hermes, J. C.; Veitch, J.; Backeberg, B.

    2016-02-01

    St. Helena Bay, forming part of the southern Benguela ecosystem, is the largest bay on the west coast of South Africa and is a biologically important region for pelagic fish, hake, and rock lobster. To date, only a few infrequent studies have focussed on variations in the bay scale circulation. A monthly ship-based monitoring line, the St. Helena Bay Monitoring Line (SHBML), was initiated in 2000 to determine the seasonal changes in cross-shelf hydrography and biology. Even though there has been an increase in ocean modelling in and around South Africa in recent years, coastal modelling is still in its infancy. The 12-year observational data set in the St. Helena Bay region, the only long-term, cross-shelf, full water column data-set for South Africa, makes this area the perfect natural laboratory for the development of a coastal modelling system. In this study, the climatological mean temperature and salinity from three different ROMS simulations and a HYCOM simulation are evaluated against the in situ observations from the SHBML with the aim of determining the influence of different forcing products, horizontal and vertical resolution as well as vertical coordinate schemes on the vertical structure of the ocean. The model simulations tend to overestimate the temperature and salinity across the shelf, and particularly within St. Helena Bay. Furthermore, the models misrepresent the vertical salinity and temperature structures. Interestingly, below 800m, there is a better agreement between temperature in the models and the in-situ observations. This is the first detailed comparison of modelled and in-situ data for the greater St. Helena Bay area at this scale and the next phase will examine whether the model that is most congruent with the observations resolves the same interannual signals as observed in the in-situ data.

  14. Patient satisfaction at accredited antiretroviral treatment sites in the Gert Sibande District

    PubMed Central

    Ogunsanwo, Damilola A.; Helberg, Elvera A.

    2014-01-01

    Background Patient satisfaction has been used as a significant indicator of quality services provided by healthcare personnel. With the largest antiretroviral therapy (ART) programme in the world, the healthcare industry is struggling increasingly with challenges of meeting patients’ requirements and expectations for quality ART service provision. This study was conducted in order to identify the importance of factors contributing to satisfaction or dissatisfaction. Aim This study sought to explore and describe the general satisfaction or dissatisfaction of patients with accredited ART hospital sites at public health facilities in the Gert Sibande District, Mpumalanga and to identify factors contributing to either satisfaction or dissatisfaction. Setting Six hospitals that initiated ART in the district, participated in the study. Method The study was conducted using a sample of 300 patients. Proportional random sampling was used in selecting the number of patients from each facility. A structured interview with each participating patient was conducted using a standardised structured questionnaire. The first available required number of patients that complied with requirements from each of the six hospitals was selected for the interview. Descriptive statistics were used to analyse data and data with qualitative aspects were captured and categorised manually. Results The major factors contributing to satisfaction included the availability of medicines and knowledge regarding how to take medication. Factors contributing to dissatisfaction on the part of the patients included confidentiality issues, long waiting periods, shortage of staff and dirty toilets. Conclusion This study indicated general satisfaction with the ART-related services at the accredited ART hospital sites in the Gert Sibande District. Regular monitoring and evaluation are recommended. PMID:26245422

  15. Superfund Record of Decision (EPA Region 8): East Helena, MT. (First remedial action), November 1989

    SciTech Connect

    Not Available

    1989-11-22

    The 80-acre East Helena site, in East Helena, Lewis and Clark County, Montana, is a primary lead smelting facility that has been in operation since 1888. Prickly Pear Creek flows near the site and has been found to contain elevated levels of arsenic and lead. A 1984 remedial investigation identified elevated levels of metal contamination in soil, livestock, plants, and ground and surface waters with the sources of onsite contamination being primary and fugitive emissions and seepage from process ponds and process fluid circuitry. The primary contaminants of concern in the process ponds are metals including arsenic and lead. The selected remedial action for this site includes excavating and smelting 55,150 cubic yards of soil and/or sediment from all four process ponds and multi-media monitoring after individual remedial activities are implemented at three of the process pond areas.

  16. Quid est Clea helena? Evidence for a previously unrecognized radiation of assassin snails (Gastropoda: Buccinoidea: Nassariidae).

    PubMed

    Strong, Ellen E; Galindo, Lee Ann; Kantor, Yuri I

    2017-01-01

    The genus Clea from SE Asia is from one of only two unrelated families among the megadiverse predatory marine Neogastropoda to have successfully conquered continental waters. While little is known about their anatomy, life history and ecology, interest has grown exponentially in recent years owing to their increasing popularity as aquarium pets. However, the systematic affinities of the genus and the validity of the included species have not been robustly explored. Differences in shell, operculum and radula characters support separation of Clea as presently defined into two distinct genera: Clea, for the type species Clea nigricans and its allies, and Anentome for Clea helena and allies. A five-gene mitochondrial (COI, 16S, 12S) and nuclear (H3, 28S) gene dataset confirms the placement of Anentome as a somewhat isolated offshoot of the family Nassariidae and sister to the estuarine Nassodonta. Anatomical data corroborate this grouping and, in conjunction with their phylogenetic placement, support their recognition as a new subfamily, the Anentominae. The assassin snail Anentome helena, a popular import through the aquarium trade so named for their voracious appetite for other snails, is found to comprise a complex of at least four species. None of these likely represents true Anentome helena described from Java, including a specimen purchased through the aquarium trade under this name in the US and one that was recently found introduced in Singapore, both of which were supported as conspecific with a species from Thailand. The introduction of Anentome "helena" through the aquarium trade constitutes a significant threat to native aquatic snail faunas which are often already highly imperiled. Comprehensive systematic revision of this previously unrecognized species complex is urgently needed to facilitate communication and manage this emerging threat.

  17. Larval morphology and complex vocal repertoire of Rhacophorus helenae (Anura: Rhacophoridae), a rare flying frog from Vietnam.

    PubMed

    Vassilieva, Anna B; Gogoleva, Svetlana S; Poyarkov, Nikolay A Jr

    2016-06-24

    We present new data on the distribution, reproduction, larval morphology and vocalization of Rhacophorus helenae (Rhacophoridae), a narrowly distributed frog from southern Vietnam. Two new populations of R. helenae were discovered during field surveys in the lowland monsoon forests in Dong Nai and Ba Ria-Vung Tau provinces in 2010-2013. Spawning was observed in May 2013. Egg clutches containing small (2.3±0.1 mm) unpigmented eggs were embedded in a foam nest and suspended high on trees above temporary ponds. The tadpoles of R. helenae have a morphology typical of pond-dwelling Rhacophorus larvae with a moderate tail length and a labial tooth row formula of 5(2-5)/3. Postmetamorphic juveniles differed from adult frogs in the features of their coloration and less developed webbing. The complex vocal repertoire of R. helenae included five types of tonal, wideband and pulsed calls and several transitional signal types differentiated by frequency and amplitude parameters. Calls were uttered as singular signals (pulsed calls) or within non-stereotyped series of variable duration (other call types). The complex structure of the advertisement call markedly distinguishes R. helenae from other members of the Rhacophorus reinwardtii species complex.

  18. A Q-GERT Model for Determining the Maintenance Crew Size for the SAC command Post Upgrade

    DTIC Science & Technology

    1983-12-01

    AFIT/GOR/OS/83D-1 l.2, II \\I * In SA Q-GERT MODEL FOR DETERMINING ’- THE MAINTENANCE CREW SIZE FOR •’THE SAC COMMAND POST UPGRADE THESIS Harold R...COMMAND POST UPGRADE * THESIS Presented to the Faculty of the School of’Engineering of the Air Force Institute of Technology Air University In...Thomas Clark, and my reader,.Lt. Col. Gerald Armstrong, for their assistance and guidance during the preparation of my thesis . I would also like to thank

  19. Quid est Clea helena? Evidence for a previously unrecognized radiation of assassin snails (Gastropoda: Buccinoidea: Nassariidae)

    PubMed Central

    Galindo, Lee Ann; Kantor, Yuri I.

    2017-01-01

    The genus Clea from SE Asia is from one of only two unrelated families among the megadiverse predatory marine Neogastropoda to have successfully conquered continental waters. While little is known about their anatomy, life history and ecology, interest has grown exponentially in recent years owing to their increasing popularity as aquarium pets. However, the systematic affinities of the genus and the validity of the included species have not been robustly explored. Differences in shell, operculum and radula characters support separation of Clea as presently defined into two distinct genera: Clea, for the type species Clea nigricans and its allies, and Anentome for Clea helena and allies. A five-gene mitochondrial (COI, 16S, 12S) and nuclear (H3, 28S) gene dataset confirms the placement of Anentome as a somewhat isolated offshoot of the family Nassariidae and sister to the estuarine Nassodonta. Anatomical data corroborate this grouping and, in conjunction with their phylogenetic placement, support their recognition as a new subfamily, the Anentominae. The assassin snail Anentome helena, a popular import through the aquarium trade so named for their voracious appetite for other snails, is found to comprise a complex of at least four species. None of these likely represents true Anentome helena described from Java, including a specimen purchased through the aquarium trade under this name in the US and one that was recently found introduced in Singapore, both of which were supported as conspecific with a species from Thailand. The introduction of Anentome “helena” through the aquarium trade constitutes a significant threat to native aquatic snail faunas which are often already highly imperiled. Comprehensive systematic revision of this previously unrecognized species complex is urgently needed to facilitate communication and manage this emerging threat. PMID:28828249

  20. Description of Survey Data Regarding the Chemical Repackaging Plant Accident West Helena, Arkansas

    SciTech Connect

    Sorensen, J.H.; Vogt, B.M.

    1999-03-01

    Shortly after 1:00 p.m. on Thursday, May 8, 1997, clouds of foul-smelling smoke began pouring from an herbicide and pesticide packaging plant in West Helena, Arkansas. An alert was sounded, employees evacuated, and the West Helena fire department was called. As three firefighters prepared to enter the plant, the chemical compounds exploded, collapsing a solid concrete block wall, and killing all three firefighters. As the odorous smoky cloud drifted away from the plant, authorities ordered residents in a 2-mile area downwind of the plant to evacuate and those in the 2- to 3-mile zone to shelter in place. This study examines and compares the responses to a mail survey of those ordered to evacuate and those told to shelter in place. Among the variables examined are compliance with official orders and perceived warnings, threat perception, time and source of first warning, response times, and behavior characteristics for both populations. The findings indicate that 90% of those that were told to evacuate did so but only 27% of those told to shelter-in-place did so, with 68% opting to evacuate instead. The implications of these findings for emergency managers is that people will likely choose to evacuate when both warnings to evacuate and warnings to shelter are issued to residents in close proximity to each other. The findings on warning times closely resemble other findings from evacuations when chemical accidents occur and route notification is used for warning residents.

  1. 76 FR 18622 - Notice of Intent To Rule on Request To Release Airport Property at the Helena Regional Airport...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-04

    ... and invite public comment on the release of land at Helena Regional Airport (HLN) under the provisions of Section 125 of the Wendell H. Ford Aviation Investment Reform Act for the 21st Century (AIR 21.... SUPPLEMENTARY INFORMATION: The FAA invites public comment on the request to release property at HLN under...

  2. Maps Showing Depth to Water Table, September 1976, and Area Inundated by the June 1975 Flood, Helena Valley, Lewis and Clark County, Montana

    USGS Publications Warehouse

    Wilke, Kathleen R.; Johnson, M.V.

    1978-01-01

    Depth to water table, September 1976, and area inundated by the June 1975 flood in the Helena valley, Montana, are mapped on two sheets, Helena and East Helena 7.5-minute quadrangles, at scale 1:48,000. Depth to water table was mapped using water-level measurements from existing shallow observation wells and selected domestic wells, and from field reconnaissance of topography. A hydrograph shows water-level fluctuation in two wells located in different parts of the valley. Area inundated by the June 1975 flood was mapped from aerial photos along Prickly Pear and Tenmile Creeks and by field reconnaissance along Silver Creek. (Woodard-USGS)

  3. Comparison of definitions for the metabolic syndrome in adolescents. The HELENA study.

    PubMed

    Vanlancker, Tine; Schaubroeck, Emmily; Vyncke, Krishna; Cadenas-Sanchez, Cristina; Breidenassel, Christina; González-Gross, Marcela; Gottrand, Frederic; Moreno, Luis A; Beghin, Laurent; Molnár, Denes; Manios, Yannis; Gunter, Marc J; Widhalm, Kurt; Leclercq, Catherine; Dallongeville, Jean; Ascensión, Marcos; Kafatos, Anthony; Castillo, Manuel J; De Henauw, Stefaan; Ortega, Francisco B; Huybrechts, Inge

    2017-02-01

    Various definitions are used to define metabolic syndrome in adolescents. This study aimed to compare, in terms of prevalence and differences, five frequently used definitions for this population: International Diabetes Federation, National Cholesterol Education Program Adult Treatment Panel III (NCEP-ATP) modified by Cook, pediatric American Heart Association (AHA), World Health Organization, and Jolliffe and Janssen. A sample of 1004 adolescents (12.5-17.0 years) from the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study was considered. The components of the definitions (waist circumference/BMI, plasma lipids, glycemia, and blood pressure) were applied, and definitions were compared by using crosstabs, sensitivity, specificity, and kappa coefficient. The prevalence of metabolic syndrome varied from 1.6 to 3.8% depending on the used definitions. Crosstabs comparing the definitions showed the fewest cases being misclassified (having metabolic syndrome or not) between NCEP-ATP and AHA. Analyses for kappa coefficient, sensitivity, and specificity confirmed this finding.

  4. Looking through the lenses of science literacy and cultural diversity: learning from Helena's mistake

    NASA Astrophysics Data System (ADS)

    Chinn, Pauline W. U.

    2012-06-01

    Maria Andrée focuses on an immigrant student whose error in a laboratory activity leads to a novel, colorful outcome that she excitedly shares with peers. After engaging in class activities for a few weeks she returns to her earlier dislike of science, saying: "I hate science, particularly Chemistry." The classroom activity system focused on reproduction of school knowledge did not expand to accommodate Helena's "new activity system with an object of learning science." This essay suggests teachers be prepared to teach diverse students in ways supporting multiple ways to engage in science. This becomes possible when teachers view their classrooms as dynamic, participatory activity systems that support content mastery as contributing to but not being identical to science identity and science literacy.

  5. Hydrologic data from selected wells in the Helena Valley, Lewis and Clark County, Montana

    USGS Publications Warehouse

    Moreland, Joe A.; Leonard, R.B.; Reed, T.E.; Clausen, R.O.; Wood, W.A.

    1979-01-01

    Hydrologic data were collected during 1978-79 to aid in evaluating the hydrologic conditions in shallow aquifers beneath the Helena Valley, Montana. The locations of 52 shallow test wells augered during the study are shown on a map at a scale of 1:48,000. Periodic water-level measurements and water-quality analyses for the test holes are listed in tables. Water temperature, specific conductance, and nitrate concentration are given for water samples collected from 98 domestic wells, and chemical analyses are included for 11 domestic and irrigation wells. In addition, water-level drawdown and recovery data are plotted on graphs for five pumped wells and three observation wells. (Kosco-USGS)

  6. Hydrogeology of the Helena Valley-fill aquifer system, west-central Montana. Water resources investigation

    SciTech Connect

    Briar, D.W.; Madison, J.P.

    1992-01-01

    The report, which presents the study results, describes the hydrogeology of the valley-fill aquifer system. Specific objectives were to: describe the geometry and the hydraulic characteristics of the aquifer system; define the potentiometric surface and the direction of ground-water flow; locate and quantify sources of ground-water recharge and discharge including surface- and ground-water interactions; and characterize the water quality in terms of susceptibility of the aquifer system to contamination and in terms of concentrations, distribution, and sources of major ions, trace elements, and organic compounds. The results of the study will be useful to the development of a comprehensive management program for the use and protection of the ground-water resources of the Helena Valley.

  7. Hydrographic variability in the St. Helena Bay region of the southern Benguela ecosystem

    NASA Astrophysics Data System (ADS)

    Lamont, T.; Hutchings, L.; van den Berg, M. A.; Goschen, W. S.; Barlow, R. G.

    2015-04-01

    Cross-shelf distributions of temperature, salinity, water masses, and dissolved oxygen in St. Helena Bay revealed substantial vertical and seasonal variations. In the surface layers, nearshore and offshore temperature and salinity patterns differed, with bay-scale variability linked to upwelling dynamics and coastal processes, while the offshore region was influenced by solar insolation. Spectral analysis revealed that an annual signal prevailed at most stations, and corroborated contrasting patterns between the offshore and nearshore regions, with phase differences suggesting shoreward propagation of the offshore temperature signal. The shelf was dominated by Modified Upwelled Water (MUW) and Subantarctic Mode Water (SAMW), which comprised the primary source of upwelled water. Clear zonation of MUW was evident across the shelf, resulting from seasonal variations in locations of the oceanic and bifurcated shelf-break fronts. Dynamics within St. Helena Bay consistently differed from those further offshore, due to the influences of the shelf-break front, Cape Columbine upwelling plume, and cyclonic recirculation, which appeared to be associated with an intraannual signal with a periodicity of 3-4 months. Persistent hypoxia in the bottom waters suggested the occurrence of a permanent reservoir of Low Oxygen Water (LOW). Seasonal shoreward and offshore expansion of LOW occurred throughout the upwelling season, with maximum extent reached during summer and autumn, due to the coupled effects of advection and local phytoplankton decay. While wind mixing ventilated the water column at nearshore stations in winter, and the onset of upwelling during spring introduced oxygen-richer water from further offshore, hypoxia persisted in the center of the Bay.

  8. Antioxidant vitamin status (A, E, C, and beta-carotene) in European adolescents - the HELENA Study.

    PubMed

    Breidenassel, Christina; Valtueña, Jara; González-Gross, Marcela; Benser, Jasmin; Spinneker, Andre; Moreno, Luis A; de Henauw, Stefaan; Widhalm, Kurt; Molnar, Denes; Maiani, Guiseppe; Stehle, Peter

    2011-07-01

    An adequate nutritional status of antioxidant vitamins (vitamins A, C, E) and b-carotene is essential especially during childhood and adolescence, because of their important roles in cell growth and development. Currently, there are no physiological reference values for blood concentration of these vitamins and b-carotene in apparently healthy European adolescents. The aim of the current study was to obtain reliable and comparable data of antioxidant vitamins and b-carotene in a cross-sectional study, within HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence), which was conducted in a representative sample of adolescents from ten European cities. From a subsample of 1,054 adolescents (males= 501) of the HELENA Cross Sectional Study with an age range of 12.5 to 17.49 years, fasting blood samples were taken and analyzed for vitamins A, E, C, and b-carotene status. As specific reference values for adolescents are missing, percentile distribution by age and sex is given. Mean concentrations were the following: Retinol: 356.4 ± 107.9 cm/mL; alpha-tocopherol: 9.9 ± 2.1 microg/mL; vitamin C: 10.3 ± 3.3 mg/L; and b-carotene: 245.6 ± 169.6 cm/mL. Females showed higher alpha-tocopherol and vitamin C values compared with males and 17-year-old boys had higher retinol levels than the same-aged girls (p = 0.018). Retinol serum concentrations increased significantly according to age in both gender, but girls had also significantly increasing b-carotene levels by age. For the first time, concentrations of antioxidant vitamins and pro-vitamin beta-carotene have been obtained in a representative sample of apparently healthy European adolescents. These data can contribute to the establishment of reference ranges in adolescents.

  9. Erosive effects of the storms HELENA (1963) and HUGO (1989) on Basse-Terre island (Guadeloupe - Lesser Antilles Arc).

    NASA Astrophysics Data System (ADS)

    Le Bivic, Rejanne; Allemand, Pascal; Delacourt, Christophe; Quiquerez, Amélie

    2014-05-01

    Basse-Terre is a volcanic island which belongs to the archipelago of Guadeloupe located in the Lesser Antilles Arc (Caribbean Sea). As a mountainous region in the tropical belt, Basse-Terre is affected by intense sediment transport due to extreme meteorological events. During the last fifty years, eight major tropical storms and hurricanes with intense rainfalls induced landslides and scars in the weathered layers. The purpose of this study is to compare two major meteorological events within a period of 26 years (HELENA in 10/1963 and HUGO in 09/1989) in order to qualify the parameters responsible of the spatial distribution of landslides and scars. The storm HELENA affected Basse-Terre between the 23rd and the 25th of October, 1963. The maximal daily rainfall reached 300 mm in Baillif which is located on the leeward coast at the altitude of 650 m while the maximum wind velocity reached 50 km/h. A similar exceptional event happened when the hurricane HUGO slammed the island in September 17, 1989. The maximum daily rainfall recorded in Sainte-Rose (on the northern coast) was 250 mm while it reached 208 mm in Petit-Bourg and the maximum wind speed was 60 km/h. Aerial images were acquired by the IGN (French Geographical Institute) before and a few weeks after the extreme events: less than three months after the event HELENA and less than a month after the event HUGO. Those images have been orthorectified at a metric resolution and combined in a GIS with a 10 m resolution DEM. Scars and landslides were digitalized and their surface area and mean slope were measured for both HELENA and HUGO. This work confirms several results proposed by a previous study related to the HELENA event: (1) the landslides occurred mainly in the center of the island and (2) the slope is the main parameter for the initiation of landslides, since all of them occurred with a slope superior to 30°. Furthermore, the resiliency of the surface affected by the landslides induced by HELENA was

  10. 80-Myr history of buoyancy and volcanic fluxes along the trails of the Walvis and St. Helena hotspots (South Atlantic)

    NASA Astrophysics Data System (ADS)

    Vidal, V.; Adam, C.; Escartin, J.

    2007-12-01

    Walvis and St.~Helena are the only long-lived hotspot chains in the South Atlantic. Therefore, their characterization is important to constrain the processes associated with mantle plume formation, their temporal evolution, and the interaction with plate and mantle dynamics in the region. We study the temporal evolution of plume buoyancy and magma production rate along both hotspot chains, which are constrained from the swell and volume of volcanic materials emplaced along the chain. The regional depth anomaly is calculated by correcting the 2' bathymetry grid of Smith & Sandwell (1997) for thermal subsidence and sediment loading. We separate the topography associated with volcanism and the swell surrounding the hotspot chains using the MiFil filtering method (Adam et al., 2005). We then estimate the temporal variations associated with both parameters by computing volumes along the hotspot tracks. Neither Walvis nor St.~Helena show a 'classical' hotspot behavior. We find that two plumes are at the origin of the St.~Helena chain. This study also shows a swell associated with the Circe seamount, supporting the existence of a hotspot NW of the St.~Helena trail. The variation in swell and volcanic fluxes suggests temporal variability in the plume behavior at time scales of 10-20~m.y. and 5~m.y., which may be related to oscillations and instabilities of the plume conduit, respectively. Cumulative fluxes in the area are largest for Walvis and weakest for Circe, and all are significantly lower than that reported for the Hawai'i hotspot.

  11. 80-Myr history of buoyancy and volcanic fluxes along the trails of the Walvis and St. Helena hotspots (South Atlantic)

    NASA Astrophysics Data System (ADS)

    Adam, Claudia; Vidal, Valerie; Escartín, Javier

    2007-09-01

    Walvis and St. Helena are the only long-lived hotspot chains in the South Atlantic. Therefore, their characterization is important to constrain the processes associated with mantle plume formation, their temporal evolution, and the interaction with plate and mantle dynamics in the region. We study the temporal evolution of plume buoyancy and magma production rate along both hotspot chains, which are constrained from the swell and volume of volcanic materials emplaced along the chain. The regional depth anomaly is calculated by correcting the 2' bathymetry grid of Smith and Sandwell [W.H.F. Smith, D.T. Sandwell, Global sea floor topography from satellite altimetry and ship depth soundings, Science 277 (1997) 1956-1962] for thermal subsidence and sediment loading. We separate the topography associated with volcanism and the swell surrounding the hotspot chains using the MiFil filtering method [C. Adam, V. Vidal, A. Bonneville, MiFil: A method to characterize seafloor swells with application to the south central Pacific, Geochem. Geophys. Geosyst. 6 (1) (2005) Q01003, doi: 10.1029/2004GC000814]. We then estimate the temporal variations associated with both parameters by computing volumes along the hotspot tracks. Neither Walvis nor St. Helena show a 'classical' hotspot behavior. We find that two plumes are at the origin of the St. Helena chain. This study also shows a swell associated with the Circe seamount, supporting the existence of a hotspot NW of the St. Helena trail. The variation in swell and volcanic fluxes suggests temporal variability in the plume behavior at time scales of 10-20 m.y. and 5 m.y., which may be related to oscillations and instabilities of the plume conduit, respectively. Cumulative fluxes in the area are largest for Walvis and weakest for Circe, and all are significantly lower than that reported for the Hawai'i hotspot.

  12. Simulation of the genesis of Tropical Storm Gert during the NASA Tropical Cloud Systems and Processes Experiment

    NASA Astrophysics Data System (ADS)

    Braun, S. A.; Montgomery, M. T.; Mallen, K.

    2006-12-01

    A high-resolution numerical simulation of Tropical Storm Gert using the WRF model will be presented. The simulation uses multiple grids to nest down to a grid with 2-km grid spacing in order to at least partially resolve the convection. A detailed validation of the simulation using satellite and aircraft data suggests that the model appears to capture key aspects of the genesis of Gert. Initially, a wave is crossing the Yukatan Peninsula and the southern Bay of Campeche, with the center of a broad circulation located along the southern coast of the bay by July 23, 2005. By early on the 24th, the center of circulation jumps to the northwest and the system begins to intensify slowly. The model suggests that the northwestward jump in location is partly caused by blocking of northeasterly flow associated with the wave by the Sierra Madre Mountains. This blocked flow is turned southeastward along the mountain range and contributes to a background mesoscale vortex at low levels that the ensuing convection utilizes to spin up the storm. The evolution of the storm is sensitive to the parameterization used for the planetary boundary layer (PBL). When the Mellor-Yamada-Janjic (MYJ) PBL scheme is used, the simulation (described above) reproduces many aspects of the storm and predicts a track that is similar to, but somewhat faster, than observed. When the Yonsei University (YSU) PBL scheme is used, the evolution differs in several ways, most importantly in that the track of the simulated storm is shifted about 50 km northward relative to the original simulation. This shift in track is related to important differences in the distribution of precipitation (caused by the PBL schemes) that lead to changes in the low- to mid- level vorticity structure of the storm. Specifically, the YSU PBL scheme produces a larger area of stratiform precipitation. Midlevel convergence shifts the production of vorticity into this region. In contrast, with the MYJ PBL scheme, vorticity production

  13. Active relatives and health-related physical fitness in European adolescents: the HELENA Study.

    PubMed

    Martín-Matillas, Miguel; Ortega, Francisco B; Ruiz, Jonatan R; Martínez-Gómez, David; Vicente-Rodríguez, Germán; Marcos, Ascensión; Béghin, Laurent; Kafatos, Anthony; González-Gross, Marcela; Zaccaria, Maria; Molnár, Dénes; De Henauw, Stefaan; Sjöström, Michael; Moreno, Luis A; Castillo, Manuel J

    2012-01-01

    High physical fitness in childhood and adolescence is positively associated with favourable health-related outcomes. Our aim was to examine the relationship between relatives' (father, mother, brother, sister, and best friend) physical activity engagement and encouragement on adolescents' physical fitness. Adolescents were part of the HELENA study, a multi-centre study conducted in 10 cities from nine European countries in 2006-2008. Participants were 3288 adolescents (48% boys, 52% girls) aged 12.5-17.5 years with valid data on at least one of the three fitness variables studied: muscular strength (standing long jump), speed/agility (4×10 m shuttle run), and cardiorespiratory fitness (20 m shuttle run). The adolescents reported their relatives' physical activity engagement and encouragement. Analysis of covariance showed that relatives' physical activity engagement (father, mother, brother, and best friend) was positively related to cardiorespiratory fitness (P < 0.05); and mother's and sisters' physical activity engagement were positively associated with higher muscular strength in adolescents (P < 0.05). Furthermore, father's physical activity encouragement was positively linked to physical fitness (all fitness components) in adolescents (P < 0.05). Interventions aimed at improving physical fitness in young people might be more successful when family members, particularly mothers and fathers, are encouraged to engage in physical activity and support adolescents' physical activity.

  14. Objectively measured physical activity and sedentary time in European adolescents: the HELENA study.

    PubMed

    Ruiz, Jonatan R; Ortega, Francisco B; Martínez-Gómez, David; Labayen, Idoia; Moreno, Luis A; De Bourdeaudhuij, Ilse; Manios, Yannis; Gonzalez-Gross, Marcela; Mauro, Beatrice; Molnar, Denes; Widhalm, Kurt; Marcos, Ascensión; Beghin, Laurent; Castillo, Manuel J; Sjöström, Michael

    2011-07-15

    The authors' aim in this cross-sectional study was to characterize levels of objectively measured physical activity and sedentary time in adolescents from 9 European countries. The study comprised 2,200 European adolescents (1,184 girls) participating in the HELENA cross-sectional study (2006-2008). Physical activity was measured by accelerometry and was expressed as average intensity (counts/minute) and amount of time (minutes/day) spent engaging in moderate- to vigorous-intensity physical activity (MVPA). Time spent in sedentary behaviors was also objectively measured. Cardiorespiratory fitness was measured by means of the 20-m shuttle run test. Level of maternal education was reported by the adolescents. A higher proportion of boys (56.8% of boys vs. 27.5% of girls) met the physical activity recommendations of at least 60 minutes/day of MVPA. Adolescents spent most of the registered time in sedentary behaviors (9 hours/day, or 71% of the registered time). Both average intensity and MVPA were higher in adolescents with high cardiorespiratory fitness, and sedentary time was lower in the high-fitness group. There were no physical activity or sedentary time differences between maternal education categories. These data provide an objective measure of physical activity and amount of time spent in sedentary behaviors in a relatively large number of European adolescents.

  15. Levels of physical activity that predict optimal bone mass in adolescents: the HELENA study.

    PubMed

    Gracia-Marco, Luis; Moreno, Luis A; Ortega, Francisco B; León, Francisco; Sioen, Isabelle; Kafatos, Anthony; Martinez-Gomez, David; Widhalm, Kurt; Castillo, Manuel J; Vicente-Rodríguez, Germán

    2011-06-01

    Physical activity is necessary for bone mass development in adolescence. There are few studies quantifying the associations between physical activity and bone mass in adolescents. To assess the relationship between moderate-to-vigorous physical activity (MVPA) and vigorous physical activity (VPA) and bone mass in adolescents. Bone mass was measured by dual-energy X-ray absorptiometry and physical activity by accelerometers in 380 healthy Spanish adolescents (189 boys, aged 12.5-17.5 years) from the HELENA-CSS (2006-2007). Subjects were classified according to the recommended amount of MVPA (<60 minutes or ≥60 minutes of MVPA/day). Receiver operating characteristic curve analysis was applied to calculate the relationship between physical activity and bone mass. Less than 41 and 45 minutes of MVPA/day are associated with reduced bone mass at the trochanter and femoral neck. More than 78 minutes of MVPA/day is associated with increased bone mineral density (BMD) at the femoral neck. Regarding VPA, more than 28 minutes/day for the hip and intertrochanter and more than 32 minutes/day for the femoral neck are associated with increased BMD. The recommended amount of physical activity (minutes/day) seems insufficient to guarantee increased bone mass. With some minutes of VPA/day, bone adaptations could be obtained at different bone sites. Copyright © 2011 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.

  16. Life as an early career researcher: interview with Heloisa Helena Milioli

    PubMed Central

    Milioli, Heloisa Helena

    2016-01-01

    Heloisa Helena Milioli speaks to Francesca Lake, Managing Editor: Heloisa received a BSc degree in Biological Sciences (2008) from the Universidade Federal de Santa Catarina (Brazil) and obtained a MSc degree in Genetics (2011) from Universidade Federal do Paraná (Brazil). In 2011 and 2012, she worked as a lecturer and tutor in the Department of Cell Biology, Embryology and Genetics (Universidade Federal de Santa Catarina). She moved to Australia in 2012 to obtain her PhD in Biological Sciences, with emphasis on Bioinformatics, from The University of Newcastle. Her doctoral work brings together new considerations in the breast cancer field by combining novel bioinformatics approaches with the study of intrinsic subtypes. She has been applying advanced methods and sophisticated algorithms in unconventional computer architecture for the molecular classification of breast cancer based on the genomic (single nucleotide polymorphisms, circulating nucleic acids and copy number variations) and transcriptomic (gene expression and miRNA) signatures. Fundamental research will allow her to identify biomarkers of use in translational medicine for the diagnosis, prognosis and disease management focused on group-based tailored therapies. PMID:28031973

  17. Sedentary patterns and media availability in European adolescents: The HELENA study.

    PubMed

    Rey-López, Juan P; Vicente-Rodriguez, Germán; Ortega, Francisco B; Ruiz, Jonatan R; Martinez-Gómez, David; De Henauw, Stefan; Manios, Yannis; Molnar, Denes; Polito, Angela; Verloigne, Maite; Castillo, Manuel J; Sjöström, Michael; De Bourdeaudhuij, Ilse; Moreno, Luis A

    2010-07-01

    To describe sedentary behaviors in adolescents and to examine the influence of media availability on TV viewing. The study assessed 3278 adolescents (1537 males and 1741 females, 12.5-17.5 years) involved in the HELENA study (2007). Adolescents reported hours of TV viewing, computer games, console, internet for study and non-study reasons, and study, as well as availability of TVs, computers and consoles. Time spent in sedentary behaviors was higher during weekends (all p<0.001). Males spent more hours on TV viewing (for > or = 15 years at weekends), playing computer games and console games while females spent more time studying and surfing for non-study reasons. During weekdays, one third of adolescents exceeded the screen time guidelines (>2h/day) based solely on TV viewing, whereas around 60% exceeded it at weekends. Having a TV or a console in the bedroom was associated with higher TV viewing (OR=2.66; 95% CI 2.23-3.18; and OR=1.92; 95% CI 1.61-2.28, respectively) whereas the presence of computer reduced it (OR=0.57; 95% CI 0.48-0.68). Adolescents living in Europe are not meeting media recommendations, especially during weekend. The absence of a TV in the adolescents' bedroom might reduce TV viewing. Further studies are needed to confirm or contrast our findings. Copyright 2010 Elsevier Inc. All rights reserved.

  18. Adolescent's physical activity levels and relatives' physical activity engagement and encouragement: the HELENA study.

    PubMed

    Martín-Matillas, Miguel; Ortega, Francisco B; Ruiz, Jonatan R; Martínez-Gómez, David; Marcos, Ascensión; Moliner-Urdiales, Diego; Polito, Angela; Pedrero-Chamizo, Raquel; Béghin, Laurent; Molnár, Dénes; Kafatos, Anthony; Moreno, Luis A; De Bourdeaudhuij, Ilse; Sjöström, Michael

    2011-12-01

    The aim of this article is to examine the association between adolescents' physical activity (PA) levels and their relatives' (father, mother, brothers, sisters and best friend) PA engagement and encouragement. Adolescents (52.3% girls) aged 12.5-17.5 years were gathered from the HELENA study. Adolescents' PA levels were assessed by the International Physical Activity Questionnaire for Adolescents (valid data on 3007 participants) and accelerometry (valid data on 2200 participants). Relatives' engagement and encouragement were reported by the adolescents and encoded into three categories (low, middle and high). Analysis of covariance showed that relatives' PA encouragement was more strongly associated with adolescents' PA levels than relatives' PA engagement. Pairwise comparisons indicated that the higher the encouragement level (from most relatives) the higher the adolescent's PA levels. This finding was overall consistent when using self-report or objective methods for assessing adolescents' PA levels, yet the associations were stronger when using self-report methods. These findings highlight the important role of social encouragement on adolescents' PA levels. Community interventions aiming to enhance PA levels in the adolescent population might be more successful when family and peers are also targeted.

  19. Healthy lifestyle by nutrition in adolescence (HELENA). A new EU funded project.

    PubMed

    Vicente-Rodriguez, German; Libersa, Christian; Mesana, Maria I; Béghin, Laurent; Iliescu, Catalina; Moreno Aznar, Luis A; Dallongeville, Jean; Gottrand, Frédéric

    2007-01-01

    The key to health promotion and disease prevention in the 21st century is to establish an environment that supports positive health behaviour and healthy lifestyle from childhood. The HELENA project includes cross-sectional, crossover and pilot community intervention multi-centre studies, as an integrated approach to the above-mentioned problem. Dietary intake, nutrition knowledge and eating attitudes, food choices and preferences, body composition, biochemical, physical activity and fitness and genotype (to analyse gene-nutrient and gene-environment interactions) assessment will provide the full information about the nutritional and lifestyle status of the European adolescents. The requirements for health promoting foods will be also identified, and three sensory acceptable products for adolescents will be developed. Harmonization and standardisation of the assessments for both scientific and technological objectives should result in reliable and comparable data of a representative sample of European adolescents. This will contribute to understand why health-related messages are not being as effective as expected in the adolescent population. A realistic intervention strategy will be proposed in order to achieve the goals of understanding and effectively enhancing nutritional and lifestyle habits of adolescents in Europe.

  20. Sedentary behaviour and clustered metabolic risk in adolescents: the HELENA study.

    PubMed

    Rey-López, J P; Bel-Serrat, S; Santaliestra-Pasías, A; de Moraes, A C; Vicente-Rodríguez, G; Ruiz, J R; Artero, E G; Martínez-Gómez, D; Gottrand, F; De Henauw, S; Huybrechts, I; Polito, A; Molnar, D; Manios, Y; Moreno, L A

    2013-10-01

    Although sedentary behaviours are linked with mortality for cardiovascular reasons, it is not clear whether they are negatively related with cardio-metabolic risk factors. The aim was to examine the association between time engaged in television (TV) viewing or playing with videogames and a clustered cardio-metabolic risk in adolescents. Sedentary behaviours and physical activity were assessed in 769 adolescents (376 boys, aged 12.5-17.5 years) from the HELENA-CSS study. We measured systolic blood pressure, HOMA index, triglycerides, TC/HDL-c, VO₂max and the sum of four skinfolds, and a clustered metabolic risk index was computed. A multilevel regression model (by Poisson) was performed to calculate the prevalence ratio of having a clustered metabolic risk. In boys, playing >4 h/day with videogames (weekend) and moderate to vigorous PA (MVPA) was associated with cardio-metabolic risk after adjustment for age, maternal education and MVPA. In contrast, TV viewing was not associated with the presence of cardio-metabolic risk. In boys, playing with videogames may impair cardio-metabolic health during the adolescence. Adolescents should be encouraged to increase their participation in physical activity of at least moderate intensity to obtain a more favourable risk factor profile. Copyright © 2012 Elsevier B.V. All rights reserved.

  1. Landfill gas and leachate monitoring: Helena, Montana - a technical assistance panels program report. Final report

    SciTech Connect

    Baker, R.; Jewett, M.; Jubenville, D.; Kuntz, D.; Lokey, B.

    1981-07-01

    Leachate contamination of ground water and methane gas production are potential problems associated with solid wastes deposited in landfills. Expanding urban areas may utilize former sites for residential building sites, schools, and parks. This report presents an example of a method which can be used to design a permanent methane gas and leachate monitoring program from a relatively inexpensive preliminary investigation. The monitoring program was conducted on a landfill located within the city limits of Helena, Montana in 1980. A barhole punch survey was conducted to delineate areas of methane gas concentrations and to guide placement of wells. Seven monitoring wells were drilled, logged, and samples were collected. An MSA Model 53 Gascope was used to measure the percent of volume of gas in air and the lower explosive limit of the gas. Water samples were analyzed in a laboratory under selected parameters. Preliminary findings indicated that only a moderate amount of methane gas is being generated and migration of the gas appeared to be minimal. Leachate from the landfill did not appear to have contaminated the ground water. The report recommends that a long term water quality and methane gas monitoring program be instituted and estimates costs of such a program.

  2. [Prevalence of enteroparasitosis in the population of Maria Helena, Paraná State].

    PubMed

    Santos, Simone Aparecida Dos; Merlini, Luiz Sérgio

    2010-05-01

    The epidemiological study on intestinal parasites has the purpose of determining the main diseases and their respective etiologic agents, which are endemically or epidemically spread worldwide. The aim of this study was to evaluate the enteroparasitosis infection prevalence, in which age group they prevail, relating the infection with age, gender, and the region in which the person lives, in the city of Maria Helena - PR. Data collection was performed from June of 2004 to May of 2006. 431 samples of feces were analyzed through the spontaneous sedimentation and centrifugal fluctuation methods. The enteroparasitosis prevalence was of 16%, being the most frequent enteroparasitosis: Endolimax nana (6.5%), Entamoeba coli (3.5%), Giardia lamblia (6.3%), Ascaris lumbricoides (1.4%), Strongyloides stercoralis (0.7%), Entrobius vermicularis (0.7%), Anchylostomiasis (0.2%), Entamoeba hystolitica and Taenia sp (0.2%). Poly-parasitism was found in 3.2% of the samples. The age group from 0 to 9 years presented the highest prevalence, however there was no statistical difference among the analyzed factors since p>0.05. From these results, it was possible to conclude that the city presents similar characteristics both in rural and urban zones.

  3. Attention capacity in European adolescents: role of different health-related factors. The HELENA study.

    PubMed

    Esteban-Cornejo, Irene; Cadenas-Sanchez, Cristina; Vanhelst, Jérémy; Michels, Nathalie; Lambrinou, Christina-Paulina; González-Gross, Marcela; Widhalm, Kurt; Kersting, Mathilde; de la O Puerta, Alejandro; Kafatos, Anthony; Moreno, Luis A; Ortega, Francisco B

    2017-08-31

    We compared the level of attention capacity between adolescents from the center and south of Europe. The study included 627 European adolescents (54% girls), aged 12.5-17.5 years, who participated in the HELENA Study. The d2 Test of Attention was administered to assess attention capacity. The main results showed that adolescents from the south of Europe had significantly higher score in attention capacity compared with adolescents from central Europe (score + 8.1; 95%CI, 2.44-13.61) after adjustment for age, sex, socioeconomic indicators, body mass index, cardiorespiratory fitness and diet quality index (p = 0.012). Adolescents from the south of Europe had higher levels of attention capacity than their counterparts from central Europe independently of sociodemographic and health-related factors. These differences should be taken into account by educational institutions when promoting new approaches for putting into the practice student's capacities. What is Known? • Attention is a crucial capacity during adolescence. • Several health-related factors (i.e., physical activity, fitness or fatness) may influence attention capacity in adolescents. What is New? • Adolescents from the south of Europe had higher levels of attention capacity than their counterparts from the center, after accounting for socioeconomic factors, fitness, fatness and quality of diet. • These differences should be taken into account by educational institutions when promoting new approaches for putting into the practice student's capacities.

  4. Prevalence of ideal cardiovascular health in European adolescents: The HELENA study.

    PubMed

    Henriksson, Pontus; Henriksson, Hanna; Gracia-Marco, Luis; Labayen, Idoia; Ortega, Francisco B; Huybrechts, Inge; España-Romero, Vanesa; Manios, Yannis; Widhalm, Kurt; Dallongeville, Jean; González-Gross, Marcela; Marcos, Ascensión; Moreno, Luis A; Castillo, Manuel J; Ruiz, Jonatan R

    2017-08-01

    The ideal cardiovascular health (iCVH) construct consists of 4 health behaviours and 3 health factors and is strongly related to later cardiovascular disease. However, the prevalence of iCVH in European adolescents is currently unknown. The Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study is a cross-sectional, multicentre study conducted in 9 European countries during 2006-2007 and included 3528 adolescents (1683 boys and 1845 girls) between 12.5 and 17.5years of age. Status (ideal vs. non-ideal) for the health behaviours (smoking status, body mass index, physical activity and diet) and health factors (total cholesterol, blood pressure and fasting glucose) were determined. Overall, the prevalence of ideal health behaviours was low; non-smoking (60.9% ideal), body mass index (76.8%), physical activity (62.1%), and diet (1.7%). The prevalence of ideal health factors was; total cholesterol (65.8%), blood pressure (62.0%) and plasma glucose (88.8%). The low prevalence of iCVH behaviours, especially diet and physical activity, identified in European adolescents is likely to influence later cardiovascular health which strongly motivates efforts to increase ideal health behaviours in this population. Copyright © 2017 Elsevier B.V. All rights reserved.

  5. St. Helena, Edmond Halley, the discovery of stellar proper motion, and the mystery of Aldebaran

    NASA Astrophysics Data System (ADS)

    Brandt, John C.

    2010-07-01

    St. Helena was the location of Halley's observatory in 1677-1678. The site has been identified and I report on a visit in November 2006. The principal use of the observatory was to accurately map the stars of the southern sky. In the summary of his work, the Catalogus Stellarum Australium, Halley noted evidence for the "... mutability of the fixed Stars." He would not return to this subject until much later in his career. Halley later compared contemporary positions of Arcturus, Sirius, and Aldebaran with the ancient positions recorded in the Almagest. He found that these stars had apparently moved southward by >30' and concluded that they had their own particular motions. Modern proper motion measurements are consistent with this conclusion for Arcturus and Sirius, but are not even close for Aldebaran. While some authors are aware of the problem, it generally is not mentioned in books on the history of astronomy or in biographical works on Halley. Errors in the Almagest positions can be ruled out; an error of 30' in the early eighteenth century position is highly unlikely; a misidentification of the star is implausible; and, we are left with the conclusion that there is most likely an error in Halley's calculations.

  6. Polycyclic aromatic hydrocarbons in fish from St Helena, South Atlantic, in relation to an historic wreck.

    PubMed

    Rumney, Heather S; Potter, Kerry; Mellor, Philip K; Brant, Jan; Whomersley, Paul; Shaw, Stephen; Barry, Jon; Kirby, Mark F; Law, Robin J

    2014-12-15

    Concentrations of polycyclic aromatic hydrocarbons were determined in edible tissues of fish species consumed by the islanders of St Helena to assess any risk to human health posed by oil leaking from an historic wreck. Samples were collected from the vicinity of the wreck site and at two reference locations at which fishing activity occurs. Summed PAH concentrations ranged from 2.2 to 20 μg kg(-1) wet weight, and no PAHs with more than 4 fused rings were detected. All concentrations of the four PAH used as a basis for assessment in relation to health risks to human consumers of foods within the EU (benz[a]anthracene, benzo[a]pyrene, benzo[b]fluoranthene and chrysene) were<0.1 μg kg(-1) wet weight and raised no concerns. Additionally, concentrations were calculated as the benzo[a]pyrene toxic equivalency quotient and found to be well below the level of concern (0 to 0.05 μg kg(-1) wet weight benzo[a]pyrene equivalents).

  7. Quartz resources in the Serra de Santa Helena formation, Brazil: A geochemical and technological study

    NASA Astrophysics Data System (ADS)

    Santos, Murilo Ferreira Marques dos; Fujiwara, Eric; Schenkel, Egont Alexandre; Enzweiler, Jacinta; Suzuki, Carlos Kenichi

    2014-12-01

    This study presents an evaluation of Brazilian quartz deposits of Corinto and Olhos D'água, in Minas Gerais State, as potential high purity raw material for the production of silica glass. Both deposits are part of the Serra de Santa Helena formation, which holds other quartz deposits. Several quartz samples from these mines were analyzed to evaluate their chemical purity, by determination of the content of trace elements by ICP-MS after acid digestion. The technological characteristics of the ores after flame-fusion into silica glass were evaluated according to their bubble generation and UV transparency. The results indicate that silica glass with chemistry suitable for crucible applications can be obtained from materials of both mines, and even optical grade silica glass can be manufactured using transparent ore from one of the mines. In addition, this work explores the trace elements composition of each mine, as well as their fluid inclusions, and characterizes the mines as being of hydrothermal origin. Small differences in the physical and chemical characteristics of quartz that could affect the technological behavior of the ores are related to the geological history of the mines and provide interesting insights regarding the exploration of other quartz resources within the same geological formation.

  8. Altering conditions for student participation and motive development in school science: learning from Helena's mistake

    NASA Astrophysics Data System (ADS)

    Andrée, Maria

    2012-06-01

    Previous research on science education has described various factors influencing students' participation and produced categorizations of students based on e.g. cultural background. In this article it is argued, theoretically and empirically, that an understanding of students' participation in science education needs to begin with an analysis of what activity students are engaged in. The aim is to explore how altering conditions of classroom work may open up opportunities for students mainly participating in an activity of education or schooling to engage in an activity of science learning. Activity is conceptualized in a Cultural-Historical Activity Theory perspective as object-oriented and transformative. Drawing on an ethnographic study in a Swedish compulsory school, a critical incident of the participation in science education of a 7th grade girl called Helena is analyzed. The results show that altered conditions of classroom practice may produce new possibilities for student participation, and point to the impossibility of determining students as `different kinds of students' based on a priori categories e.g. sex, ethnicity, socio-economic background.

  9. Iron and vitamin status biomarkers and its association with physical fitness in adolescents: the HELENA study.

    PubMed

    Gracia-Marco, Luis; Valtueña, Jara; Ortega, Francisco B; Pérez-López, Faustino R; Vicente-Rodríguez, Germán; Breidenassel, Christina; Ferrari, Marika; Molnar, Dénes; Widhalm, Kurt; de Henauw, Stefaan; Kafatos, Anthony; Diaz, Ligia E; Gottrand, Frédéric; Maiani, Giuseppe; Stehle, Peter; Castillo, Manuel J; Moreno, Luis A; González-Gross, Marcela

    2012-08-15

    There is a lack of studies that analyze the association between micronutrient-related biomarker status and physical fitness in adolescents. In the present study, biochemical parameters for iron and vitamin status were studied, along with objective measures of physical fitness in healthy male and female European adolescents. One thousand eighty-nine adolescents (580 girls, 12.5-17.5 yr) from the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) cross-sectional study were included. Hierarchical linear models were performed to determine the associations between micronutrient biomarkers and physical fitness. Age, seasonality, latitude, body mass index, menarche (in girls), and physical activity were used as covariates. For cardiorespiratory fitness, concentrations of hemoglobin, retinol, and vitamin C in male adolescents and β-carotene and 25(OH)D in female adolescents were associated with maximal oxygen consumption. For muscular fitness, concentrations of hemoglobin, β-carotene, retinol, and α-tocopherol in male adolescents and β-carotene and 25(OH)D in female adolescents were associated with better performance of the standing long jump test. In summary, concentrations of hemoglobin and most antioxidant vitamins in male adolescents and β-carotene and 25(OH)D in female adolescents were positively associated with cardiorespiratory and muscular fitness, after controlling for relevant confounders. The associations between physical fitness and iron or vitamin status observed in this cross-sectional study in adolescents should be followed up by a study specifically designed to evaluate causal relationships.

  10. Economic and Fiscal Conditions in Rural America. Hearings before the Committee on the Budget. House of Representatives, Ninety-Ninth Congress, Second Session (Helena, Montana and Worthington, Minnesota, March 14, 1986).

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. House Committee on the Budget.

    In the seventh of a series of field hearings held in different regions of the country, the House Committee on the Budget met in Helena, Montana, and Worthington, Minnesota, on March 14, 1986, to hear comments from a broad range of witnesses on the 1987 federal budget. At the Helena meeting statements were made by Montana Governor Ted Schwinden, by…

  11. [The study of Balantidium Helenae Bezzenberger, 1904 (Litostomatea, Trichostomatia) inhabiting the intestines of the frog Rana temporaria Linnaeus, 1758, in optical and electron microscopes].

    PubMed

    Kornilova, O A; Chistyakova, L V

    2014-01-01

    The structure of the ciliate Balantidium helenae Bezzenberger, 1904 was investigated with the use of optical and electron microscopy. It was demonstrated that, together with the basic dimensional characteristics, main distinguishing features of the studied species include the following characters: the presence of a pointed prominence on the posterior margin of the cell; the presence of elongated cilia on the left margin of the vestibulum; and different shape and size of cortical ridges. Two morphologically different types of electron-dense bodies (supposedly hydrogenosoms) and also endobiotic bacteria were also found in the cytoplasm of B. helenae.

  12. Superfund record of decision (EPA Region 4): Helena Chemical Company, (Tampa Plant), Hillsborough County, Tampa, FL, May 7, 1996

    SciTech Connect

    1996-06-01

    The decision document (Record of Decision), presents the selected remedial action for the Helena Chemical Company Superfund Site, Tampa, Hillsborough County, Florida. This action addresses soil, sediment, and ground water contamination at the site and calls for the implementation of response measures which will protect human health and the environment. The selected remedy includes biological treatment (i.e., bioremediation) of pesticides and other site related contaminants located in surface soil sand sediments to levels appropriate for future industrial use of the Site. In addition, the selected remedy includes ground water recovery and treatment to remove pesticides and other site related contaminants.

  13. Sedentary behaviours and its association with bone mass in adolescents: the HELENA cross-sectional study

    PubMed Central

    2012-01-01

    Background We aimed to examine whether time spent on different sedentary behaviours is associated with bone mineral content (BMC) in adolescents, after controlling for relevant confounders such as lean mass and objectively measured physical activity (PA), and if so, whether extra-curricular participation in osteogenic sports could have a role in this association. Methods Participants were 359 Spanish adolescents (12.5-17.5 yr, 178 boys,) from the HELENA-CSS (2006–07). Relationships of sedentary behaviours with bone variables were analysed by linear regression. The prevalence of low BMC (at least 1SD below the mean) and time spent on sedentary behaviours according to extracurricular sport participation was analysed by Chi-square tests. Results In boys, the use of internet for non-study was negatively associated with whole body BMC after adjustment for lean mass and moderate to vigorous PA (MVPA). In girls, the time spent studying was negatively associated with femoral neck BMC. Additional adjustment for lean mass slightly reduced the negative association between time spent studying and femoral neck BMC. The additional adjustment for MVPA did not change the results at this site. The percentage of girls having low femoral neck BMC was significantly smaller in those participating in osteogenic sports (≥ 3 h/week) than in the rest, independently of the cut-off selected for the time spent studying. Conclusions The use of internet for non-study (in boys) and the time spent studying (in girls) are negatively associated with whole body and femoral neck BMC, respectively. In addition, at least 3 h/week of extra-curricular osteogenic sports may help to counteract the negative association of time spent studying on bone health in girls. PMID:23148760

  14. Mechanisms of stress, energy homeostasis and insulin resistance in European adolescents--the HELENA study.

    PubMed

    Huybrechts, I; De Vriendt, T; Breidenassel, C; Rogiers, J; Vanaelst, B; Cuenca-García, M; Moreno, L A; González-Gross, M; Roccaldo, R; Kafatos, A; Clays, E; Bueno, G; Beghin, L; Sjöstrom, M; Manios, Y; Molnár, D; Pisa, P T; De Henauw, S

    2014-10-01

    Stress is hypothesized to facilitate the development of obesity, whose the foundations are already set during childhood and adolescence. We investigated the relationship between the stress-system, selected mechanisms of energy homeostasis and insulin resistance (IR) in a sample of European adolescents. Within HELENA-CSS, 723 adolescents (12.5-17.5 years) from 10 European cities provided all the necessary data for this study. Fasting blood samples were collected for cortisol, leptin, insulin and glucose analysis. HOMA-IR was calculated from insulin and glucose concentrations. Adolescents' body fat (BF) %, age and duration of exclusive breastfeeding were assessed. For boys and girls separately, the relationship of cortisol with leptin, insulin, glucose and HOMA-IR was examined by computing Pearson correlation coefficients and Hierarchical Linear Models (HLMs), with 'city' as cluster unit, adjusting for age, BF% and duration of exclusive breastfeeding. In boys, Pearson correlation coefficients illustrated positive correlations of cortisol with insulin (r = 0.144; p = 0.013), glucose (r = 0.315; p < 0.001) and HOMA-IR (r = 0.180; p = 0.002), whilst in girls, this positive relationship was observed for leptin (r = 0.147; p = 0.002), insulin (r = 0.095; p = 0.050) and HOMA-IR (r = 0.099; p = 0.041), but not for glucose (r = 0.054; p = 0.265). Observed associations were independent of adolescents' age, BF% and duration of exclusive breastfeeding after computing HLMs. This study suggests that the stress-system is positively related to mechanisms of energy homeostasis and IR in European adolescents, and reveals a potential small gender difference in this relationship. The hypothesis that stress might facilitate the development of obesity during adolescence is supported. Copyright © 2014 Elsevier B.V. All rights reserved.

  15. Vitamin D status and physical activity interact to improve bone mass in adolescents. The HELENA Study.

    PubMed

    Valtueña, J; Gracia-Marco, L; Vicente-Rodríguez, G; González-Gross, M; Huybrechts, I; Rey-López, J P; Mouratidou, T; Sioen, I; Mesana, M I; Martínez, A E Díaz; Widhalm, K; Moreno, L A

    2012-08-01

    The effects of vitamin D concentrations on bone mineral content in adolescents are still unclear. Vitamin D and physical activity (PA) may interact to determine bone mineral content (BMC) in two possible directions; 25(OH)D sufficiency levels improve BMC only in active adolescents, or PA increases BMC in individuals with replete vitamin D levels. The effects of suboptimal 25-hydroxycholecalciferol (25(OH)D) concentrations on BMC in adolescents are still unclear. The main aim of this study was to evaluate the influence of 25(OH)D on BMC in adolescents, considering the effect of body composition, sex, age, Tanner stage, season, calcium and vitamin D intakes, physical fitness and PA. Serum 25(OH)D concentrations, anthropometric measurements, dual energy X-ray absorptiometry measurements, calcium and vitamin D intakes, PA and physical fitness were obtained in 100 Spanish adolescents (47 males), aged 12.5-17.5 years, within the framework of the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study. Relations were examined using ANCOVA and regression analyses including BMC as dependent variable. Linear regression of BMC suggested that 25(OH)D concentrations independently influenced total and leg BMC after controlling for age, sex, lean mass, seasonality and calcium intake (B = 0.328, p < 0.05, and B = 0.221, p < 0.05, respectively) in the physically active group. No significant influence of 25(OH)D concentrations on BMC was observed in the inactive group. Significant effect was shown between the interaction of 25(OH)D and PA on BMC for the total body and legs (both p < 0.05). Vitamin D and PA may interact to determine BMC. 25(OH)D sufficiency levels improve bone mass only in active adolescents, or PA has a positive influence on BMC in individuals with replete vitamin D levels.

  16. [Associations between insulin resistance and three B-vitamins in European adolescents: the HELENA study].

    PubMed

    Iglesia, Iris; González-Gross, Marcela; Huybrechts, Inge; De Miguel-Etayo, Pilar; Molnar, Denes; Manios, Yannis; Widhalm, Kurt; Gottrand, Frédéric; Kafatos, Anthony; Marcos, Asensión; De la O Puerta, Alejandro; Leclercq, Catherine; De Henauw, Stefaan; Stehle, Peter; Kersting, Mathilde; Mouratidou, Theodora; Moreno, Luis Alberto

    2017-06-05

    To assess whether adolescents with high body mass index (BMI), or fat mass index (FMI), in combination with insulin resistance (assessed with the Homeostatic Model Assessment [HOMA] index), had also lower blood vitamin B6, folate and vitamin B12 concentrations. Six hundred and fifteen adolescents from the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study, with data on B-vitamins (both intakes and status), and BMI, FMI, HOMA, were selected. Intakes were assessed by two non-consecutive 24-h recalls. B-vitamins biomarkers were measured by chromatography and immunoassay. Analysis of covariance was applied to elucidate the differences in B-vitamins between combinations of groups defined according to the median of the z-scores of markers of body composition and insulin sensitivity. When considering energy intakes and education of the mother in the model, in females, vitamin B6 intakes were higher in the high BMI/high HOMA group than in the high BMI-low HOMA group. Similarly, vitamin B6 intakes were higher in the high FMI/high HOMA group than in the low FMI/low HOMA group. Plasma vitamin B12 was significantly lower in males in the high FMI/high HOMA group than in the low FMI/low HOMA group, keeping also significant their trends throughout the groups, a fact that can be observed also for females (p < 0.05). Adolescents with combined higher adiposity and higher HOMA insulin sensitivity showed lower vitamin B12 plasma concentrations. These differences do not seem to be explained by dietary vitamin B12 intake.

  17. Fitness and fatness in relation with attention capacity in European adolescents: The HELENA study.

    PubMed

    Cadenas-Sanchez, Cristina; Vanhelst, Jeremy; Ruiz, Jonatan R; Castillo-Gualda, Ruth; Libuda, Lars; Labayen, Idoia; De Miguel-Etayo, Pilar; Marcos, Ascensión; Molnár, Eszter; Catena, Andrés; Moreno, Luis A; Sjöström, Michael; Gottrand, Frederic; Widhalm, Kurt; Ortega, Francisco B

    2017-04-01

    To examine the association of health-related physical fitness components and accurate measures of fatness with attention in European adolescents. Cross-sectional study. A sub-sample of 444 adolescents from the HELENA study (14.5±1.2years) from 6 different countries participated in this study. Adolescents underwent evaluations of fitness (20m shuttle run, handgrip strength, standing long jump and 4×10m shuttle run tests), fatness (body mass index, skinfold thicknesses, bioelectrical impedance, Bod Pod and dual-energy X-ray absorptiometry) and attention (d2-test). Higher cardiorespiratory fitness was positively associated with better attention capacity (β=0.1, p=0.03). Body mass index and fat mass index measured by Bod Pod and dual-energy X-ray absorptiometry in a subset were negatively associated with attention (β=-0.11, p=0.02; β=-0.36, p=0.02; β=-0.34, p=0.03; respectively). All models were adjusted for age, sex, family-affluence scale and mother education. When these models were additionally adjusted for cardiorespiratory fitness when fatness was the main predictor and vice versa, the associations were somewhat attenuated and were no longer statistically significant. Muscular strength, speed-agility and body fatness markers measured by bioelectrical impedance and skinfolds were not associated with attention. The fit and non-overweight adolescents presented the highest values of attention capacity whilst their unfit and overweight peers showed the lowest values of attention (47.31±2.34 vs. 33.74±4.39; p<0.01). Our results support that both cardiorespiratory fitness and fatness are associated with attention, yet these associations are not independent. A combined effect was also observed, with fit and non-overweight adolescents showing the highest levels of attention and those unfit and overweight the lowest. Copyright © 2016 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  18. Sedentary behaviours and its association with bone mass in adolescents: the HELENA Cross-Sectional Study.

    PubMed

    Gracia-Marco, Luis; Rey-López, Juan P; Santaliestra-Pasías, Alba M; Jiménez-Pavón, David; Díaz, Ligia E; Moreno, Luis A; Vicente-Rodríguez, German

    2012-11-13

    We aimed to examine whether time spent on different sedentary behaviours is associated with bone mineral content (BMC) in adolescents, after controlling for relevant confounders such as lean mass and objectively measured physical activity (PA), and if so, whether extra-curricular participation in osteogenic sports could have a role in this association. Participants were 359 Spanish adolescents (12.5-17.5 yr, 178 boys,) from the HELENA-CSS (2006-07). Relationships of sedentary behaviours with bone variables were analysed by linear regression. The prevalence of low BMC (at least 1SD below the mean) and time spent on sedentary behaviours according to extracurricular sport participation was analysed by Chi-square tests. In boys, the use of internet for non-study was negatively associated with whole body BMC after adjustment for lean mass and moderate to vigorous PA (MVPA). In girls, the time spent studying was negatively associated with femoral neck BMC. Additional adjustment for lean mass slightly reduced the negative association between time spent studying and femoral neck BMC. The additional adjustment for MVPA did not change the results at this site. The percentage of girls having low femoral neck BMC was significantly smaller in those participating in osteogenic sports (≥ 3 h/week) than in the rest, independently of the cut-off selected for the time spent studying. The use of internet for non-study (in boys) and the time spent studying (in girls) are negatively associated with whole body and femoral neck BMC, respectively. In addition, at least 3 h/week of extra-curricular osteogenic sports may help to counteract the negative association of time spent studying on bone health in girls.

  19. Secular trends in health-related physical fitness in Spanish adolescents: the AVENA and HELENA studies.

    PubMed

    Moliner-Urdiales, D; Ruiz, J R; Ortega, F B; Jiménez-Pavón, D; Vicente-Rodriguez, G; Rey-López, J P; Martínez-Gómez, D; Casajús, J A; Mesana, M I; Marcos, A; Noriega-Borge, M J; Sjöström, M; Castillo, M J; Moreno, L A

    2010-11-01

    We analysed the secular trends in health-related physical fitness in Spanish adolescents between 2001-2002 and 2006-2007. Two representative population studies were conducted 5 years apart in adolescents (12.5-17.5 years) from Zaragoza (Spain) that participated in the AVENA study in 2001-2002 and in the HELENA-CSS study in 2006-2007. Both studies used the same tests to assess physical fitness: the handgrip strength, bent arm hang, standing broad jump, 4×10m shuttle run and 20m shuttle run tests. Performance in 4×10m shuttle run and 20m shuttle run tests was higher in 2006-2007 (Cohen's d ranging from 0.2 to 0.4, p<0.05), whereas performance in handgrip strength and standing broad jump tests was lower in 2006-2007 (Cohen's d ranging from 0.3 to 1.1, p<0.001). Adjustment for age, pubertal status, fat mass, fat free mass and parental education did not alter the results. The odds ratio (OR) of meeting the FITNESSGRAM Standards for healthy cardiorespiratory fitness was higher in 2006-2007 in both boys (OR, 95% CI: 2.123, 1.157-3.908) and girls (OR, 95% CI: 2.420, 1.377-4.255). The results indicate that levels of both speed/agility and cardiorespiratory fitness were higher in 2006-2007 than in 2001-2002, whereas muscular strength components were lower in 2006-2007.

  20. Reliability of health-related physical fitness tests in European adolescents. The HELENA Study.

    PubMed

    Ortega, F B; Artero, E G; Ruiz, J R; Vicente-Rodriguez, G; Bergman, P; Hagströmer, M; Ottevaere, C; Nagy, E; Konsta, O; Rey-López, J P; Polito, A; Dietrich, S; Plada, M; Béghin, L; Manios, Y; Sjöström, M; Castillo, M J

    2008-11-01

    To examine the reliability of a set of health-related physical fitness tests used in the European Union-funded Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) Study on lifestyle and nutrition among adolescents. A set of physical fitness tests was performed twice in a study sample, 2 weeks apart, by the same researchers. A total of 123 adolescents (69 males and 54 females, aged 13.6+/-0.8 years) from 10 European cities participated in the study. Flexibility, muscular fitness, speed/agility and aerobic capacity were tested using the back-saver sit and reach, handgrip, standing broad jump, Bosco jumps (squat jump, counter movement jump and Abalakov jump), bent arm hang, 4 x 10 m shuttle run, and 20-m shuttle run tests. The ANOVA analysis showed that neither systematic bias nor sex differences were found for any of the studied tests, except for the back-saver sit and reach test, in which a borderline significant sex difference was observed (P=0.044). The Bland-Altman plots graphically showed the reliability patterns, in terms of systematic errors (bias) and random error (95% limits of agreement), of the physical fitness tests studied. The observed systematic error for all the fitness assessment tests was nearly 0. Neither a learning nor a fatigue effect was found for any of the physical fitness tests when repeated. The results also suggest that reliability did not differ between male and female adolescents. Collectively, it can be stated that the reliability of the set of physical fitness tests examined in this study is acceptable. The data provided contribute to a better understanding of physical fitness assessment in young people.

  1. Ideal cardiovascular health and inflammation in European adolescents: The HELENA study.

    PubMed

    González-Gil, E M; Santabárbara, J; Ruiz, J R; Bel-Serrat, S; Huybrechts, I; Pedrero-Chamizo, R; de la O, A; Gottrand, F; Kafatos, A; Widhalm, K; Manios, Y; Molnar, D; De Henauw, S; Plada, M; Ferrari, M; Palacios Le Blé, G; Siani, A; González-Gross, M; Gómez-Martínez, S; Marcos, A; Moreno Aznar, L A

    2017-05-01

    Inflammation plays a key role in atherosclerosis and this process seems to appear in childhood. The ideal cardiovascular health index (ICHI) has been inversely related to atherosclerotic plaque in adults. However, evidence regarding inflammation and ICHI in adolescents is scarce. The aim is to assess the association between ICHI and inflammation in European adolescents. As many as 543 adolescents (251 boys and 292 girls) from the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study, a cross-sectional multi-center study including 9 European countries, were measured. C-reactive protein (CRP), complement factors C3 and C4, leptin and white blood cell counts were used to compute an inflammatory score. Multilevel linear models and multilevel logistic regression were used to assess the association between ICHI and inflammation controlling by covariates. Higher ICHI was associated with a lower inflammatory score, as well as with several individual components, both in boys and girls (p < 0.01). In addition, adolescents with at least 4 ideal components of the ICHI had significantly lower inflammatory score and lower levels of the study biomarkers, except CRP. Finally, the multilevel logistic regression showed that for every unit increase in the ICHI, the probability of having an inflammatory profile decreased by 28.1% in girls. Results from this study suggest that a better ICHI is associated with a lower inflammatory profile already in adolescence. Improving these health behaviors, and health factors included in the ICHI, could play an important role in CVD prevention. Copyright © 2016 The Italian Society of Diabetology, the Italian Society for the Study of Atherosclerosis, the Italian Society of Human Nutrition, and the Department of Clinical Medicine and Surgery, Federico II University. Published by Elsevier B.V. All rights reserved.

  2. Association between dietary inflammatory index and inflammatory markers in the HELENA study.

    PubMed

    Shivappa, Nitin; Hebert, James R; Marcos, Ascensión; Diaz, Ligia-Esperanza; Gomez, Sonia; Nova, Esther; Michels, Nathalie; Arouca, Aline; González-Gil, Esther; Frederic, Gottrand; González-Gross, Marcela; Castillo, Manuel J; Manios, Yannis; Kersting, Mathilde; Gunter, Marc J; De Henauw, Stefaan; Antonios, Kafatos; Widhalm, Kurt; Molnar, Denes; Moreno, Luis; Huybrechts, Inge

    2017-06-01

    Previous research has shown that diet is associated with low-grade systemic inflammation among adults. However, no study has yet been conducted to explore the association between inflammatory potential of diet and low-grade systemic inflammation among adolescents whose dietary behavior may be different from adults. We examine the predictive ability of 24-h recall-derived dietary inflammatory index (DII) scores on inflammation among 532 European adolescents in the HELENA cross-sectional study. The DII is a literature-derived dietary index developed to predict inflammation. The DII was calculated per 1000 calories and was tested against C-reactive protein, ILs-1,2,4,10, TNF-α, ICAM, vascular cell adhesion molecule (VCAM), and IFN-γ. All inflammatory markers had nonnormal distributions and therefore were log transformed. Analyses were performed using multivariable linear regression, adjusting for age, sex, city, BMI, smoking, and physical activity. Pro-inflammatory diet (higher DII scores) was associated with increased levels of various inflammatory markers: TNF-α, IL-1, 2, IFN-γ,  and vascular cell adhesion molecule (bDIIt3vs1 = 0.13, 95% CI: 0.001, 0.25; 0.13, 95% CI 0.001, 0.25; 0.40, 95% CI: 0.03, 0.77; 0.53, 95% CI: 0.05, 1.01; 0.07, 95% CI: 0.01, 0.13, respectively). These results reinforce the fact that diet, as a whole, plays an important role in modifying inflammation in adolescents. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  3. Treatment of primary glioblastoma multiforme with cetuximab, radiotherapy and temozolomide (GERT) – phase I/II trial: study protocol

    PubMed Central

    Combs, Stephanie E; Heeger, Steffen; Haselmann, Renate; Edler, Lutz; Debus, Jürgen; Schulz-Ertner, Daniela

    2006-01-01

    Background The implementation of combined radiochemotherapy (RCHT) with temozolomide (TMZ) has lead to a significant increase in overall survival times in patients with Glioblastoma multiforme (GBM), however, outcome still remains unsatisfactory. The majority of GBMs show an overexpression and/or amplification of the epidermal growth factor receptor (EGFR). Therefore, addition of EGFR-inhibition with cetuximab to the current standard treatment approach with radiotherapy and TMZ seems promising. Methods/design GERT is a one-armed single-center phase I/II trial. In a first step, dose-escalation of TMZ from 50 mg/m2 to 75 mg/m2 together with radiotherapy and cetuximab will be performed. Should safety be proven, the phase II trial will be initiated with the standard dose of 75 mg/m2 of TMZ. Cetuximab will be applied in the standard application dose of 400 mg/m2 in week 1, thereafter at a dose of 250 mg/m2 weekly. A total of 46 patients will be included into this phase I/II trial. Primary endpoints are feasibility and toxicity, secondary endpoints are overall and progression-free survival. An interim analysis will be performed after inclusion of 15 patients into the main study. Patients' enrolment will be performed over a period of 2 years. The observation time will end 2 years after inclusion of the last patient. Discussion The goal of this study is to evaluate the safety and efficacy of combined RCHT-immunotherapy with TMZ and cetuximab as first-line treatment for patients with primary GBM. PMID:16709245

  4. Nutrient intake of European adolescents: results of the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study.

    PubMed

    Diethelm, Katharina; Huybrechts, Inge; Moreno, Luis; De Henauw, Stefaan; Manios, Yannis; Beghin, Laurent; González-Gross, Marcela; Le Donne, Cinzia; Cuenca-García, Magdalena; Castillo, Manuel J; Widhalm, Kurt; Patterson, Emma; Kersting, Mathilde

    2014-03-01

    An adequate nutritional intake in childhood and adolescence is crucial for growth and the prevention of youth and adult obesity and nutrition-related morbidities. Improving nutrient intake in children and adolescents is of public health importance. The purpose of the present study was to describe and evaluate the nutrient intake in a European sample using the D-A-CH nutrient intake recommendations and the Nutritional Quality Index (NQI). The HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study is a cross-sectional study, the main objective of which is to obtain comparable data on a variety of nutritional and health-related parameters in adolescents aged 12·5-17·5 years. Eight cities in Europe. The initial sample consisted of 3528 European adolescents. Among these, 1590 adolescents (54% female) had sufficient and plausible dietary data on energy and nutrient intakes from two 24 h recalls using the HELENA-DIAT software. The intakes of most macronutrients, vitamins and minerals were in line with the D-A-CH recommendations. While the intakes of SFA and salt were too high, the intake of PUFA was too low. Furthermore, the intakes of vitamin D, folate, iodine and F were less than about 55% of the recommendations. The median NQI was about 71 (of a maximum of 100). The intakes of most nutrients were adequate. However, further studies using suitable criteria to assess nutrient status are needed. Public health initiatives should educate children and adolescents regarding balanced food choices.

  5. Fitness and fatness are independently associated with markers of insulin resistance in European adolescents; the HELENA study.

    PubMed

    Jiménez-Pavón, David; Castillo, Manuel J; Moreno, Luis A; Kafatos, Anthony; Manios, Yannis; Kondaki, Katerine; Béghin, Laurent; Zaccaria, Maria; de Henauw, Stefaan; Widhalm, Kurt; Moln R, D Nes; Sjöström, Michael; González-Gross, Marcela; Ruiz, Jonatan R

    2011-08-01

    To examine the independent association of total and central body fat and cardiorespiratory fitness with markers of insulin resistance after controlling for several potential confounders in European adolescents participating in the HELENA-CSS (Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional) study. We conducted a cross sectional study (the HELENA-CSS) which comprised 1053 (12.5-17.5 years) adolescents from 10 European cities. Weight, height, waist circumference and skinfold thickness were measured, and body mass index (BMI) was calculated. Cardiorespiratory fitness was measured by the 20-m shuttle run test. Markers of insulin resistance were fasting insulin and glucose, and homeostasis model assessment (HOMA). HOMA and insulin were positively associated with BMI, skinfolds and waist circumference after controlling for center, age, pubertal status and cardiorespiratory fitness (all P ? 0.01). HOMA and insulin were negatively associated with cardiorespiratory fitness in adolescents with moderate to high levels of total and central body fat (all P ? 0.01). HOMA and insulin were associated with total and central body fat in European adolescents. Moreover, cardiorespiratory fitness explained a part of the HOMA and insulin variance in those adolescents with moderate to high levels of total and central body fat, and also, to some extent, in those with low to middle fat mass.

  6. Relictual physiological ecology in the threatened land snail Codringtonia helenae: A cause for decline in a changing environment?

    NASA Astrophysics Data System (ADS)

    Giokas, Sinos; Karkoulis, Panayiotis; Pafilis, Panayiotis; Valakos, Efstratios

    2007-11-01

    Land snails often exhibit intra-annual cycles of activity interspersed by periods of dormancy (hibernation/aestivation), accompanied by a range of behavioural and physiological adaptations to ensure their survival under adverse environmental conditions. These adaptations are useful to understand species-specific habitat requirements and to predict their response to environmental changes. We examined the seasonal physiological and biochemical composition patterns of the threatened land snail Codringtonia helenae, endemic to Greece, in relation to its behavioural ecology and climatic conditions. Fuel reserves (glycogen, lipids, proteins) and water were accumulated prior to aestivation, but subsequently were rapidly depleted. LDH exhibited substantial rise during aestivation, suggesting that anaerobic pathways may provide additional energy. The major outcome of our study was the unambiguous discrimination of the four life-cycle periods. Most remarkable was the clear distinction of the aestivation period, with hibernation, the other dormancy period, showing similarity with the two active periods but not with aestivation. We observed disassociation between behavioural and physiological responses and climatic conditions. The physiological responses of C. helenae were effective during hibernation, but only partly compensate the effect of adverse conditions during aestivation, since its aestivating behaviour is occasional and time limited. Perhaps, the behavioural ecology of Codringtonia is relictual and shaped during past environmental conditions. This constitutes an important extinction threat considering the current climatic trends and the deterioration of the habitat of that species due to human activities.

  7. [Egg intake and cardiovascular risk factors in adolescents: role of physical activity; the HELENA study].

    PubMed

    Soriano-Maldonado, A; Cuenca-García, M; Moreno, L A; González-Gross, M; Leclercq, C; Androutsos, O; Guerra-Hernández, E J; Castillo, M J; Ruiz, J R

    2013-01-01

    Introducción: Las enfermedades cardiovasculares (ECVs) suponen la principal causa de morbi-mortalidad en los países occidentales. El incremento del colesterol plasmático se ha relacionado con el desarrollo de ECV. El huevo, por su alto contenido en colesterol, ha sido indirectamente relacionado con el riesgo de desarrollar ECVs. Objetivo: Examinar la asociación entre ingesta de huevo y factores de riesgo cardiovascular en adolescentes, estudiando si dicha relación está influenciada por la actividad física. Método: Se estudiaron 380 adolescentes pertenecientes al estudio HELENA (HEalthy Lifestyle in Europe by Nutrition in Adolescence). La ingesta de alimentos se estimó mediante anamnesis nutricional de dos días no consecutivos. Se midieron indicadores de adiposidad, perfil lipídico, glucosa, insulina, resistencia a la insulina, tensión arterial y capacidad aeróbica. Se calculó un índice integrado de riesgo cardiovascular (IRCV) como medida del perfil cardiovascular global. La actividad física se midió mediante acelerometría. Se examinó el desarrollo madurativo. El estatus socioeconómico y consumo de tabaco se obtuvieron mediante cuestionario. La asociación entre ingesta de huevo y factores de riesgo de ECV se examinó mediante un modelo de regresión multinivel ajustado por factores de confusión. Resultados: La ingesta de huevo no se asoció con perfil lipídico, nivel de adiposidad, tensión arterial, resistencia a la insulina, capacidad aeróbica o IRCV (todos P > 0,05). Esta falta de asociación no estuvo influenciada por el nivel de actividad física. Conclusiones: Estos resultados sugieren que no existe asociación entre ingesta de huevo y perfil lipídico, adiposidad, resistencia a la insulina, tensión arterial, capacidad aeróbica o el IRCV en adolescentes. La actividad física no influencia dicha falta de asociación.

  8. Simulation and Interpretation of the Genesis of Tropical Storm Gert (2005) as Part of the NASA Tropical Cloud Systems and Processes Experiment

    NASA Technical Reports Server (NTRS)

    Braun, Scott A.; Montgomery, Michael T.; Mallen, Kevin

    2009-01-01

    Several hypotheses have been put forward for the how tropical cyclones (tropical storms and hurricanes in the Atlantic) first develop circulation at the surface, a key event that needs to occur before a storm can begin to draw energy from the warm ocean. One hypothesis suggests that the surface circulation forms from a "top-down" approach in which a storm s rotating circulation begins at middle levels of the atmosphere and builds down to the surface through processes related to light "stratiform" (horizontally extensive) precipitation. Another hypothesis suggests a bottom-up approach in which deep thunderstorm towers (convection) play the major role in spinning up the flow at the surface. These "hot towers" form in the area of the mid-level circulation and strongly concentrate this rotation at low levels within their updrafts. Merger of several of these hot towers then intensifies the surface circulation to the point in which a storm forms. This paper examines computer simulations of Tropical Storm Gert (2005), which formed in the Gulf of Mexico during the National Aeronautics and Space Administration s (NASA) Tropical Cloud Systems and Processes (TCSP) Experiment, to investigate the development of low-level circulation and, in particular, whether stratiform or hot tower processes were responsible for the storm s formation. Data from NASA satellites and from aircraft were used to show that the model did a good job of reproducing the formation and evolution of Gert. The simulation shows that a mix of both stratiform and convective rainfall occurred within Gert. While the stratiform rainfall clearly acted to increase rotation at middle levels, the diverging outflow beneath the stratiform rain worked against spinning up the low-level winds. The hot towers appeared to dominate the low-level flow, producing intense rotation within their cores and often being associated with significant pressure falls at the surface. Over time, many of these hot towers merged, with each

  9. Socioeconomic status influences physical fitness in European adolescents independently of body fat and physical activity: the HELENA study.

    PubMed

    Jiménez Pavón, D; Ortega, F P; Ruiz, J R; España Romero, V; García Artero, E; Moliner Urdiales, D; Gómez Martínez, S; Vicente Rodríguez, G; Manios, Y; Béghin, L; Répasy, J; Sjöstrom, M; Moreno, L A; González Gross, M; Castillo, M J

    2010-01-01

    The influence of socioeconomic status on health-related fitness is not clear. To examine the influence of socioeconomic status on health-related fitness in adolescents. A total of 3,259 adolescents (15.0 +/- 1.3 y) from the Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study (HELENA-CSS) participated in the study. Socioeconomic status was assessed by the family affluence scale (FAS). Speed-agility, muscular strength and cardiorespiratory fitness were assessed. Covariates included total body fat, physical activity and pubertal status. Adolescents with high FAS had significantly higher fitness levels than their peers of lower FAS categories except for speed-agility and handgrip in boys. Overall, the associations observed presented a medium to large effect size. These results suggest that socioeconomic status is positively associated with physical fitness in European adolescents independently of total body fat and habitual physical activity.

  10. Preliminary assessment report for Fort William Henry Harrison, Montana Army National Guard, Helena, Montana. Installation Restoration Program

    SciTech Connect

    DuWaldt, J.; Meyer, T.

    1993-07-01

    This report presents the results of the preliminary assessment (PA) conducted by Argonne National Laboratory at a Montana Army National Guard (MTARNG) property near Helena, Montana. Preliminary assessments of federal facilities are being conducted to compile the information necessary for completing preremedial activities and to provide a basis for establishing corrective actions in response to releases of hazardous substances. The principal objective of the PA is to characterize the site accurately and determine the need for further action by examining site activities, quantities of hazardous substances present, and potential pathways by which contamination could affect public health and the environment. This PA satisfies, for the Fort William Henry Harrison property, requirements of the Department of Defense Installation Restoration Program.

  11. Aerial gamma ray and magnetic survey: Mississippi and Florida airborne survey, Helena quadrangle of Arkansas, Mississippi and Tennessee. Final report

    SciTech Connect

    Not Available

    1980-09-01

    The Helena quadrangle covers a region largely within the Mississippi River flood plain in the extreme northern Gulf Coastal Province. Tertiary sediments in this area are relatively thick, and overlie a Paleozoic basin gradually shoaling to the northeast. The Oachita Tectonic Zone strikes southeasterly through the center of the quadrangle. The exposed sequence is almost entirely Quaternary sediments of the flood plain area. Older Cenozoic deposits crop out in upland areas on the west side of the river valley. A search of available literature revealed no known uranium deposits. Sixty uranium anomalies were detected and are discussed briefly. None were considered significant, and all appeared to occur as the result of cultural and/or weather effects. Magnetic data appear to be in agreement with existing structural interpretations of the region.

  12. Comparison of the IPAQ-A and actigraph in relation to VO2max among European adolescents: the HELENA study.

    PubMed

    Ottevaere, Charlene; Huybrechts, Inge; De Bourdeaudhuij, Ilse; Sjöström, Michael; Ruiz, Jonatan R; Ortega, Francisco B; Hagströmer, Maria; Widhalm, Kurt; Molnár, Dénes; Moreno, Luis A; Beghin, Laurent; Kafatos, Anthony; Polito, Angela; Manios, Yannis; Mártinez-Gómez, David; De Henauw, Stefaan

    2011-07-01

    The purpose was to compare data obtained from a modified, long, self-administered version of the International Physical Activity Questionnaire (IPAQ-A) with objective data obtained in parallel from Actigraph accelerometers, and VO(2)max in adolescents. The study comprised a total of 2018 adolescents (46% male) from ten European cities participating in the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study. Physical activity was assessed over seven consecutive days by accelerometry and expressed as min/day of moderate, vigorous, and moderate to vigorous (MVPA) physical activity (PA). PA was also assessed with the IPAQ-A. VO(2)max was estimated from a 20-m shuttle run test. Poor to fair correlations between the two methodologies were found for the whole study sample and when stratified by age and gender (r(s) = 0.08-0.26, p < 0.01). On average, the self-reported time spent in moderate PA was higher compared to the time measured with the accelerometer, while the differences between both instruments were less clear for vigorous intensity. Adolescents reporting high levels of PA (3rd tertile IPAQ-A) also showed higher levels of PA (accelerometers) in all the study variables (moderate, vigorous and MVPA), compared to adolescents reporting low PA (1st tertile IPAQ-A) (all p < 0.001). Both methods were moderately correlated with estimated VO(2)max. Within the HELENA-study, the IPAQ-A showed the modest comparability with the accelerometer data for assessing PA in each intensity level and was the highest for vigorous intensity. Both instruments are able to detect the adolescents with the highest cardio respiratory fitness, which are the most active adolescents. Crown Copyright © 2011. Published by Elsevier Ltd. All rights reserved.

  13. Breakfast consumption and CVD risk factors in European adolescents: the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study.

    PubMed

    Hallström, Lena; Labayen, Idoia; Ruiz, Jonatan R; Patterson, Emma; Vereecken, Carine A; Breidenassel, Christina; Gottrand, Frédéric; Huybrechts, Inge; Manios, Yannis; Mistura, Lorenza; Widhalm, Kurt; Kondaki, Katerina; Moreno, Luis A; Sjöström, Michael

    2013-07-01

    To examine the association between breakfast consumption and CVD risk factors in European adolescents. Cross-sectional. Breakfast consumption was assessed by the statement ‘I often skip breakfast’ and categorized into ‘consumer’, ‘occasional consumer’ and ‘skipper’. Blood pressure, weight, height, waist circumference, skinfold thickness, total cholesterol (TC), HDL cholesterol (HDL-C), LDL cholesterol (LDL-C), TAG, insulin and glucose were measured and BMI, TC:HDL-C, LDL-C:HDL-C and homeostasis model assessment–insulin resistance index (HOMA-IR) were calculated. The European Union-funded HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study. European adolescents, aged 12?50–17?49 years, from ten cities within the HELENA study (n 2929, n 925 with blood sample, 53% females). In males, significant differences across breakfast consumption category (‘consumer’, ‘occasional consumer’ and ‘skipper’) were seen for age, BMI, skinfold thickness, waist circumference, cardiorespiratory fitness, systolic and diastolic blood pressures, TC:HDL-C, LDL-C:HDL-C, glucose, insulin, HOMA-IR and LDL-C; in females, for cardiorespiratory fitness, skinfold thickness, BMI, insulin and HOMA-IR. In overweight/obese males significant differences were also seen for TC and LDL-C, whereas no differences were observed in non-overweight males or in females regardless of weight status. Our findings among European adolescents confirm previous data indicating that adolescents who regularly consume breakfast have lower body fat content. The results also show that regular breakfast consumption is associated with higher cardiorespiratory fitness in adolescents, and with a healthier cardiovascular profile, especially in males. Eating breakfast regularly may also negate somewhat the effect of excess adiposity on TC and LDL-C, especially in male adolescents.

  14. Influence of parental socio-economic status on diet quality of European adolescents: results from the HELENA study.

    PubMed

    Béghin, L; Dauchet, L; De Vriendt, Tineke; Cuenca-García, M; Manios, Y; Toti, E; Plada, M; Widhalm, K; Repasy, J; Huybrechts, I; Kersting, M; Moreno, L A; Dallongeville, J

    2014-04-14

    Diet quality is influenced by socio-economic and geographical factors. The present study sought to assess whether adolescents' diet quality is affected by their parents' socio-economic status and whether the relationship between these factors is similar in northern and southern Europe. Data collected in the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study in eight European countries were analysed. Dietary intake data were recorded via repeated 24 h recalls (using specifically developed HELENA Dietary Intake Assessment Tool software) and converted into an adolescent-specific Diet Quality Index (DQI-AM). Socio-economic status was estimated through parental educational level (Par-Educ-Lev) and parental occupation level (Par-Occ-Lev) as reported by the adolescents in a specific questionnaire. The DQI-AM data were then analysed as a function of Par-Educ-Lev and Par-Occ-Lev in northern European countries (Austria, Belgium, France, Germany and Sweden) and southern European countries (Greece, Italy and Spain). We studied a total of 1768 adolescents (age 14.7 (SD 1.3) years; percentage of girls: 52.8%; 1135 and 633 subjects from northern and southern Europe, respectively). On average, the DQI-AM score was higher in southern Europe than in northern Europe (69.1 (SD 0.1) v. 60.4 (SD 2.8), respectively; P < 0.001; Δ = 12.6%). The DQI was positively correlated with both paternal and maternal Par-Educ-Lev. However, this association was more pronounced in northern Europe than in southern Europe (P interaction = 0.004 for the mother and 0.06 for the father). The DQI was also positively correlated with Par-Occ-Lev (all P trends < 0.01), but this correlation was independent of the geographical area (P interaction = 0.51 for the mother and 0.50 for the father). In conclusion, Par-Educ-Lev and Par-Occ-Lev are associated with diet quality in adolescents in Europe. However, this association differs between northern Europe and southern Europe.

  15. Sleep time and cardiovascular risk factors in adolescents: the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study.

    PubMed

    Rey-López, J P; de Carvalho, H B; de Moraes, A C F; Ruiz, J R; Sjöström, M; Marcos, A; Polito, A; Gottrand, F; Manios, Y; Kafatos, A; Molnar, D; Widhalm, K; De Henauw, S; Moreno, L A

    2014-01-01

    We aimed to examine the association between adolescents' sleep time and a cardiometabolic risk score. A second aim was to examine associations between sleep time and individual cardiometabolic risk factors. Adolescents (N=699; ages, 12.5-17.5 years) participating in the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study were examined. Sleep time was reported by a questionnaire. Physical activity (PA) was assessed by accelerometry (n=497). Cardiometabolic risk factors measurements included insulin resistance, blood pressure, adiposity markers, cardiorespiratory fitness, and blood lipids. A cardiovascular disease risk score was computed. Associations were examined by a multilevel regression analysis (linear for individual risk factors and Poisson for the clustered risk score). For school days no association was found between sleep time and cardiometabolic risk factors. At weekend days, the prevalence ratio (PR) of having a clustered risk score increased by 15% for each additional hour of sleep controlling for age, sex, and socioeconomic status (SES); however, the prevalence disappeared when adjusting for PA. In European adolescents sleep time is not associated with cardiometabolic risk factors when important confounders are considered. Future research about sleep cardiovascular risk factors should register other sleep dimensions (sleep patterns or disturbances) to provide a better insight in this scientific field. Copyright © 2013 Elsevier B.V. All rights reserved.

  16. Resting Heart Rate Is Not a Good Predictor of a Clustered Cardiovascular Risk Score in Adolescents: The HELENA Study.

    PubMed

    de Moraes, Augusto César Ferreira; Cassenote, Alex Jones Flores; Leclercq, Catherine; Dallongeville, Jean; Androutsos, Odysseas; Török, Katalin; González-Gross, Marcela; Widhalm, Kurt; Kafatos, Anthony; Carvalho, Heráclito Barbosa; Moreno, Luis Alberto

    2015-01-01

    Resting heart rate (RHR) reflects sympathetic nerve activity a significant association between RHR and all-cause and cardiovascular mortality has been reported in some epidemiologic studies. To analyze the predictive power and accuracy of RHR as a screening measure for individual and clustered cardiovascular risk in adolescents. The study comprised 769 European adolescents (376 boys) participating in the HELENA cross-sectional study (2006-2008) were included in this study. Measurements on systolic blood pressure, HOMA index, triglycerides, TC/HDL-c, VO2máx and the sum of four skinfolds were obtained, and a clustered cardiovascular disease (CVD) risk index was computed. The receiver operating characteristics curve was applied to calculate the power and accuracy of RHR to predict individual and clustered CVD risk factors. RHR showed low accuracy for screening CVD risk factors in both sexes (range 38.5%-54.4% in boys and 45.5%-54.3% in girls). Low specificity's (15.6%-19.7% in boys; 18.1%-20.0% in girls) were also found. Nevertheless, the sensitivities were moderate-to-high (61.4%-89.1% in boys; 72.9%-90.3% in girls). RHR is a poor predictor of individual CVD risk factors and of clustered CVD and the estimates based on RHR are not accurate. The use of RHR as an indicator of CVD risk in adolescents may produce a biased screening of cardiovascular health in both sexes.

  17. The lower Tuscaloosa Formation (upper cretaceous) in the Greensburg and Joseph Branch Field Areas, St. Helena Parish, Louisiana

    SciTech Connect

    Corcoran, M.K. ); Cameron, C.P.; Meylan, M.A. )

    1993-09-01

    Detailed examination of five conventional cores and geophysical well logs in the Greensburg and Joseph Branch field areas of St. Helena Parish, Louisiana, were used to determine the geology of the First Tuscaloosa sand (an informal term for the objective sandstone in this part of the Lower Tuscaloosa production trend). Greensburg and Joseph Branch fields occur in the intermediate-depth part of the productive trend at an average depth of about 13,000 ft in an area of limited low-relief structural nosing. Neither anticlinal closures greater than 20 ft nor faults were recognized by structure contour mapping. Based on the updip and lateral shaling-out of the First Tuscaloosa Sand in the field areas, and the absence of structure, these fields are deemed stratigraphic traps. The First Tuscaloosa Sand probably was deposited as a distributary channel that flowed in the subaerial lowland part of a delta. Intense bioturbation of sand tops, unidirectional trough cross-bedding, and flaser structures were recognized in the core, indicating that this part of the overall deltaic environment was influenced or reworked by primarily sublitharenite, with scattered quartzarenite intervals. The reservoir facies was extensively modified by diagenesis. Initial (primary) porosity was reduced by compaction and later by formation of quartz overgrowths. Secondary porosity, developed as a result of the dissolution of unstable grains and late-stage carbonate cements, can range up to 25%.

  18. Impact of physical activity and cardiovascular fitness on total homocysteine concentrations in European adolescents: The HELENA study.

    PubMed

    Benser, Jasmin; Valtueña, Jara; Ruiz, Jonatan R; Mielgo-Ayuso, Juan; Breidenassel, Christina; Vicente-Rodriguez, German; Ferrari, Marika; Widhalm, Kurt; Manios, Yannis; Sjöström, Michael; Molnar, Denes; Gómez-Martínez, Sonia; Kafatos, Antony; Palacios, Gonzalo; Moreno, Luis A; Castillo, Manuel J; Stehle, Peter; González-Gross, Marcela

    2015-01-01

    We examined the association of physical activity (PA), cardiovascular fitness (CVF) and fatness with total homocysteine (tHcy) concentrations in European adolescents. The present study comprised 713 European adolescents aged 14.8 ± 1.2 y (females 55.3%) from the multicenter HELENA cross-sectional study. PA was assessed through accelerometry, CVF by the 20-m shuttle run test, and body fat by skinfold thicknesses with the Slaughter equation. Plasma folate, cobalamin, and tHcy concentrations were measured. To examine the association of tHcy with PA, CVF, and fatness after controlling for a set of confounders including age, maturity, folate, cobalamin, creatinine, smoking, supplement use, and methylenetetrahydrofolate reductase 677 genotype (CC 47%, CT 43%, TT 10%), bivariate correlations followed by multiple regression models were performed. In the bivariate correlation analysis, tHcy concentrations were slightly negatively correlated (p<0.05) with CVF in females (measured both by stages: r=-0.118 and by VO2max: r=-0.102) and positively with body mass index (r=0.100). However, daily time spent with moderate and vigorous PA showed a weak positive association with tHcy in females (p<0.05). tHcy concentrations showed a tendency to decrease with increasing CVF and increase with increasing BMI in female European adolescents. However, tHcy concentrations were positively associated with moderate and vigorous PA in female European adolescents.

  19. Dietary protein and amino acids intake and its relationship with blood pressure in adolescents: the HELENA STUDY.

    PubMed

    de Moraes, Augusto César Ferreira; Bel-Serrat, Silvia; Manios, Yannis; Molnar, Dénes; Kafatos, Anthony; Cuenca-García, Magdalena; Huybrechts, Inge; Sette, Stefania; Widhalm, Kurt; Stehle, Peter; Jiménez-Pavón, David; Carvalho, Heráclito Barbosa; Moreno, Luis A

    2015-06-01

    To analyze the association between dietary protein and amino acids intake and systolic (SBP) and diastolic (DBP) blood pressure in European adolescents. Participants were from the cross-sectional study performed in Europe, Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA study; n = 1605; 12.5-17.5 years; 833 girls) selected by complex sampling. The associations between dietary protein and amino acids intake and SBP/DBP were examined by multilevel linear regression models (context variable by school); the analysis being stratified by sex. Cities, seasonality, age, socioeconomic level, parental education level, body mass index, waist circumference, Tanner stage and physical activity were used as covariates. In boys, we found an inverse association between protein (animal and vegetable) intake and DBP; and a positive association between histidine and SBP. In girls, we observed a positive association among tryptophan, histidine with SBP and methionine with DBP. On the other hand, we observed an inverse association between tyrosine and both SBP and DBP levels in girls. The association between amino acids and BP levels is controversial and depends on the type of amino acids, and protein intake can help control the DBP in boys. © The Author 2015. Published by Oxford University Press on behalf of the European Public Health Association. All rights reserved.

  20. Erosion under extreme climatic events in tropical climates : the case of the storm Helena (1963) in the Guadeloupe island (Lesser Antilles Arc)

    NASA Astrophysics Data System (ADS)

    Allemand, P.; Lajeunesse, E.; Devauchelle, O.; Delacourt, C.

    2012-04-01

    he volume of sediment exported from a tropical watershed is dramatically increased during extreme climatic events, such as storms and tropical cyclones (Dadson et al. 2004; Hilton et al. 2008). Indeed, the exceptionally high rainfall rates reached during these events generate runoff and trigger landslides which accumulate a significant amount of sediments in flooded rivers (Gabet et al., 2004; Lin et al., 2008). We estimate the volume of sediments mobilized by the storm Helena (26 to 28 October 1963) on Basse-Terre Island in the archipelago of Guadeloupe. This is achieved using images acquired by IGN (Institut Géographique National) a few weeks after the storm which produced numerous landslides. All the available images from this campaign have been pseudo-orthorectified and included in a GIS with a Digital Elevation Model with a resolution of 10 m. Two hundred fifty three landslides have been identified and mapped. Most of them are located in the center of the island, where the highest slopes are. The cumulated surface of the landslides is 0.5 km2. Field observations on Basse-Terre show that landslides mobilized the whole regolith layer, which is about 1m thick. Assuming an average landslide thickness of 1m, we find that the total volume of sediment mobilized by the storm Helena is 0.5 km3. The associated denudation averaged over all watersheds affected by landslides is 1.4 mm with a maximum of 5 mm for the watersheds of Vieux-Habitants and Capesterre. The impact of the storm Helena is then discussed with respect to 1) the erosion induced on the Capesterre catchment by the highest flood available in a two years survey record (less than 0.1 mm/y); 2) the long term denudation rate of the major watersheds of Basse-Terre estimated by reconstructing the initial volcanic topography (between 0.1 and 0.4 mm/y).

  1. Resting Heart Rate Is Not a Good Predictor of a Clustered Cardiovascular Risk Score in Adolescents: The HELENA Study

    PubMed Central

    de Moraes, Augusto César Ferreira; Cassenote, Alex Jones Flores; Leclercq, Catherine; Dallongeville, Jean; Androutsos, Odysseas; Török, Katalin; González-Gross, Marcela; Widhalm, Kurt; Kafatos, Anthony; Carvalho, Heráclito Barbosa; Moreno, Luis Alberto

    2015-01-01

    Background Resting heart rate (RHR) reflects sympathetic nerve activity a significant association between RHR and all-cause and cardiovascular mortality has been reported in some epidemiologic studies. Methods To analyze the predictive power and accuracy of RHR as a screening measure for individual and clustered cardiovascular risk in adolescents. The study comprised 769 European adolescents (376 boys) participating in the HELENA cross-sectional study (2006–2008) were included in this study. Measurements on systolic blood pressure, HOMA index, triglycerides, TC/HDL-c, VO2máx and the sum of four skinfolds were obtained, and a clustered cardiovascular disease (CVD) risk index was computed. The receiver operating characteristics curve was applied to calculate the power and accuracy of RHR to predict individual and clustered CVD risk factors. Results RHR showed low accuracy for screening CVD risk factors in both sexes (range 38.5%–54.4% in boys and 45.5%–54.3% in girls). Low specificity’s (15.6%–19.7% in boys; 18.1%–20.0% in girls) were also found. Nevertheless, the sensitivities were moderate-to-high (61.4%–89.1% in boys; 72.9%–90.3% in girls). Conclusion RHR is a poor predictor of individual CVD risk factors and of clustered CVD and the estimates based on RHR are not accurate. The use of RHR as an indicator of CVD risk in adolescents may produce a biased screening of cardiovascular health in both sexes. PMID:26010248

  2. Association of heart rate and blood pressure among European adolescents with usual food consumption: The HELENA study.

    PubMed

    Julián-Almárcegui, C; Vandevijvere, S; Gottrand, F; Beghin, L; Dallongeville, J; Sjöstrom, M; Leclercq, C; Manios, Y; Widhalm, K; Ferreira De Morares, A C; Gónzalez-Gross, M; Stehle, P; Castillo, M J; Moreno, L A; Kersting, M; Vyncke, K; De Henauw, S; Huybrechts, I

    2016-06-01

    In adults, there is some evidence that improving diet reduces blood pressure (BP) and the subsequent risk of cardiovascular diseases (CVDs). However, studies that analyse this association in adolescents are still scarce. The objective of the present study was to examine the associations between heart rate, systolic (SBP), diastolic (DBP) and mean arterial blood pressure (MAP) among European adolescents and usual intake of vegetables, fruits, dairy products, meat, fish, high-sugar foods and savoury snacks. In total, 2283 adolescents from the HELENA-study (12.5-17.5 years old; 1253 girls) were included. Dietary intake was assessed using two computerized 24-hour dietary recalls. Age, sex, body mass index, maternal educational level, physical activity and Tanner stage were considered as confounders. Associations were examined by mixed model analysis stratified by sex. Tests for trend were assessed by tertiles of intake while controlling for the aforementioned confounders. Dairy products and fish intake were negatively associated with BP and heart rate. Significant decreasing trends were observed for heart rate and BP across tertiles of dairy products, fish intake and high-sugar foods intake (p < 0.05). Significant increasing trends were observed for SBP and MAP across tertiles of savoury snack intake (p < 0.05). Significant but small inverse associations between fish and dairy products consumption with blood pressure and heart rate have been found in European adolescents. Dietary intervention studies are needed to explore these associations in the context of the modification of several risk factors for the prevention of cardiovascular diseases. Copyright © 2016 The Italian Society of Diabetology, the Italian Society for the Study of Atherosclerosis, the Italian Society of Human Nutrition, and the Department of Clinical Medicine and Surgery, Federico II University. Published by Elsevier B.V. All rights reserved.

  3. Recommended levels and intensities of physical activity to avoid low-cardiorespiratory fitness in European adolescents: The HELENA study.

    PubMed

    Martinez-Gomez, David; Ruiz, Jonatan R; Ortega, Francisco B; Casajús, Jose A; Veiga, Oscar L; Widhalm, Kurt; Manios, Yannis; Béghin, Laurent; González-Gross, Marcela; Kafatos, Anthony; España-Romero, Vanesa; Molnar, Denes; Moreno, Luis A; Marcos, Ascension; Castillo, Manuel J; Sjöström, Michael

    2010-01-01

    The purpose of this study was to determine the sex-specific physical activity (PA) intensity thresholds that best discriminate between unhealthy/healthy cardiorespiratory fitness (CRF). Participants included 1,808 adolescents (964 girls), aged 12.5-17.5 years, from the HELENA study. We measured PA by accelerometer and calculated the time spent at light, moderate, vigorous, and moderate-to-vigorous (MVPA) intensities. CRF was assessed by the 20-m shuttle-run test. Adolescents were dichotomized (unhealthy/healthy) based on sex- and age-specific FITNESSGRAM standards. Receiver operating characteristic (ROC) analysis was used to determine thresholds that best discriminate between CRF categories. ROC analyses revealed that the PA thresholds that best discriminate between unhealthy/healthy CRF were ≥152, ≥33, ≥13, and ≥52 min/day in light, moderate, vigorous, and MVPA, respectively. In boys, the PA thresholds associated with a healthy CRF were ≥37, ≥19, and ≥56 min/day in moderate, vigorous, and MVPA, respectively, whereas in girls were ≥152, ≥34, ≥12, and ≥51 min/day in light, moderate, vigorous, and MVPA, respectively. Spending at least 60 min/day in MVPA was also associated with a healthy CRF (odds ratios: 1.75, 1.94, and 1.57, all P < 0.05, for the whole sample, boys, and girls, respectively). This study shows sex- and intensity-specific PA thresholds to discriminate between adolescents with a healthy CRF from those with a less favorable or unhealthy CRF level. © 2010 Wiley-Liss, Inc.

  4. Nutritional knowledge in European adolescents: results from the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study.

    PubMed

    Sichert-Hellert, Wolfgang; Beghin, Laurent; De Henauw, Stefaan; Grammatikaki, Evangelia; Hallström, Lena; Manios, Yannis; Mesana, María I; Molnár, Dénes; Dietrich, Sabine; Piccinelli, Raffaela; Plada, Maria; Sjöström, Michael; Moreno, Luis A; Kersting, Mathilde

    2011-12-01

    To build up sufficient knowledge of a 'healthy diet'. Here, we report on the assessment of nutritional knowledge using a uniform method in a large sample of adolescents across Europe. A cross-sectional study. The European multicentre HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study conducted in 2006-2007 in ten cities in Austria, Belgium, France, Germany, Greece (one inland and one island city), Hungary, Italy, Spain and Sweden. A total of 3546 adolescents (aged 12·5-17·5 years) completed a validated nutritional knowledge test (NKT). Socio-economic variables and anthropometric data were considered as potential confounders. NKT scores increased with age and girls had higher scores compared with boys (62% v. 59%; P < 0·0001). Scores were approximately 10% lower in 'immigrant' adolescents or in adolescents with 'immigrant' mothers. Misconceptions with respect to the sugar content in food or in beverages were found. Overall, there was no correlation between BMI values and NKT scores. After categorization according to BMI, scores increased significantly with BMI group only in boys. These differences disappeared after controlling for socio-economic status (SES). Smoking status and educational level of the mother influenced the NKT scores significantly in boys, as well as the educational levels of both parents in girls. Nutritional knowledge was modest in our sample. Interventions should be focused on the lower SES segments of the population. They should be initiated at a younger age and should be combined with environmental prevention (e.g. healthy meals in school canteens).

  5. Self-reported sleep duration, white blood cell counts and cytokine profiles in European adolescents: the HELENA study.

    PubMed

    Pérez de Heredia, Fátima; Garaulet, Marta; Gómez-Martínez, Sonia; Díaz, Ligia E; Wärnberg, Julia; Androutsos, Odysseas; Michels, Nathalie; Breidenassel, Christina; Cuenca-García, Magdalena; Huybrechts, Inge; Gottrand, Frédéric; Ferrari, Marika; Santaliestra-Pasías, Alba M; Kafatos, Anthony; Molnár, Denes; Sjöstrom, Michael; Widhalm, Kurt; Moreno, Luis A; Marcos, Ascensión

    2014-10-01

    Sleep patterns face important changes during adolescence. This can have implications for the immune system, which is regulated by the sleep-wake cycle; however, most studies relating sleep and immune system have been conducted on adults. To study the relationships between sleep duration, immune cell counts, and cytokines in European adolescents participating in the HELENA Cross-Sectional Study. Adolescents (12.5-17.5 years; n = 933; 53.9% girls) were grouped according to self-reported sleep duration into <8, 8-8.9 and ≥9 h/night. Blood samples were collected in the morning after an overnight fast to analyze counts of white blood cells (WBC), neutrophils, lymphocytes, monocytes, eosinophils, basophils, the lymphocyte subsets CD3(+), CD4(+), CD8(+), CD45RA(+), CD45RO(+), CD3(-)CD16(+)56(+) and CD19(+), and concentrations of cortisol, CRP, IL-1, IL-2, IL-4, IL-5, IL-6, IL-10, TNF-α and IFN-γ. Pro-/anti-inflammatory and Th1/Th2 cytokine ratios were calculated. Immune parameters were correlated to sleep duration and compared between the three groups. Sleep duration was negatively associated with cortisol levels and WBC, neutrophil, monocyte, CD4(+) and CD4(+)CD45RO(+) counts; in girls it is also negatively associated with IL-5 and IL-6 levels. The 8-8.9 h/night group presented the highest IL-4 values and the lowest pro-/anti-inflammatory and Th1/Th2 cytokine ratios. A sleep duration of 8-8.9 h/night was associated with a healthier immune profile in our adolescents. Copyright © 2014 Elsevier B.V. All rights reserved.

  6. The effects of intermittent calorie restriction on metabolic health: Rationale and study design of the HELENA Trial.

    PubMed

    Schübel, Ruth; Graf, Mirja E; Nattenmüller, Johanna; Nabers, Diana; Sookthai, Disorn; Gruner, Laura F; Johnson, Theron; Schlett, Christopher L; von Stackelberg, Oyunbileg; Kirsten, Romy; Habermann, Nina; Kratz, Mario; Kauczor, Hans-Ulrich; Ulrich, Cornelia M; Kaaks, Rudolf; Kühn, Tilman

    2016-11-01

    Mechanistic studies suggest benefits of intermittent calorie restriction (ICR) in chronic disease prevention that may exceed those of continuous calorie restriction (CCR), even at equal net calorie intake. Despite promising results from first trials, it remains largely unknown whether ICR-induced metabolic alterations reported from experimental studies can also be observed in humans, and whether ICR diets are practicable and effective in real life situations. Thus, we initiated the HELENA Trial to test the effects of ICR (eu-caloric diet on five days and very low energy intake on two days per week) on metabolic parameters and body composition over one year. We will assess the effectiveness of ICR compared to CCR and a control diet over a 12-week intervention, 12-week maintenance phase and 24-week follow-up in 150 overweight or obese non-smoking adults (50 per group, 50% women). Our primary endpoint is the difference between ICR and CCR with respect to fold-changes in expression levels of 82 candidate genes in abdominal subcutaneous adipose tissue biopsies (SATb) during the intervention phase. The candidate genes represent pathways, which may link obesity-related metabolic alterations with the risk for major chronic diseases. In secondary and exploratory analyses, changes in metabolic, hormonal, inflammatory and metagenomic parameters measured in different biospecimens (SATb, blood, urine, stool) are investigated and effects of ICR/CCR/control on imaging-based measures of subcutaneous, visceral and hepatic fat are evaluated. Our study is the first randomized trial over one year testing the effects of ICR on metabolism, body composition and psychosocial factors in humans. Copyright © 2016 Elsevier Inc. All rights reserved.

  7. The hELENa project - I. Stellar populations of early-type galaxies linked with local environment and galaxy mass

    NASA Astrophysics Data System (ADS)

    Sybilska, A.; Lisker, T.; Kuntschner, H.; Vazdekis, A.; van de Ven, G.; Peletier, R.; Falcón-Barroso, J.; Vijayaraghavan, R.; Janz, J.

    2017-09-01

    We present the first in a series of papers in The role of Environment in shaping Low-mass Early-type Nearby galaxies (hELENa) project. In this paper, we combine our sample of 20 low-mass early types (dEs) with 258 massive early types (ETGs) from the ATLAS3D survey - all observed with the SAURON integral field unit - to investigate early-type galaxies' stellar population scaling relations and the dependence of the population properties on local environment, extended to the low-σ regime of dEs. The ages in our sample show more scatter at lower σ values, indicative of less massive galaxies being affected by the environment to a higher degree. The shape of the age-σ relations for cluster versus non-cluster galaxies suggests that cluster environment speeds up the placing of galaxies on the red sequence. While the scaling relations are tighter for cluster than for the field/group objects, we find no evidence for a difference in average population characteristics of the two samples. We investigate the properties of our sample in the Virgo cluster as a function of number density (rather than simple clustrocentric distance) and find that dE ages correlate with the local density such that galaxies in regions of lower density are younger, likely because they are later arrivals to the cluster or have experienced less pre-processing in groups, and consequently used up their gas reservoir more recently. Overall, dE properties correlate more strongly with density than those of massive ETGs, which was expected as less massive galaxies are more susceptible to external influences.

  8. Assessing, understanding and modifying nutritional status, eating habits and physical activity in European adolescents: the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study.

    PubMed

    Moreno, L A; González-Gross, M; Kersting, M; Molnár, D; de Henauw, S; Beghin, L; Sjöström, M; Hagströmer, M; Manios, Y; Gilbert, C C; Ortega, F B; Dallongeville, J; Arcella, D; Wärnberg, J; Hallberg, M; Fredriksson, H; Maes, L; Widhalm, K; Kafatos, A G; Marcos, A

    2008-03-01

    To identify the main knowledge gaps and to propose research lines that will be developed within the European Union-funded 'Healthy Lifestyle in Europe by Nutrition in Adolescence' (HELENA) project, concerning the nutritional status, physical fitness and physical activity of adolescents in Europe. Review of the currently existing literature. The main gaps identified were: lack of harmonised and comparable data on food intake; lack of understanding regarding the role of eating attitudes, food choices and food preferences; lack of harmonised and comparable data on levels and patterns of physical activity and physical fitness; lack of comparable data about obesity prevalence and body composition; lack of comparable data about micronutrient and immunological status; and lack of effective intervention methodologies for healthier lifestyles. The HELENA Study Group should develop, test and describe harmonised and state-of-the-art methods to assess the nutritional status and lifestyle of adolescents across Europe; develop and evaluate an intervention on eating habits and physical activity; and develop and test new healthy food products attractive for European adolescents.

  9. Nutrition and lifestyle in european adolescents: the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study.

    PubMed

    Moreno, Luis A; Gottrand, Frédéric; Huybrechts, Inge; Ruiz, Jonatan R; González-Gross, Marcela; DeHenauw, Stefaan

    2014-09-01

    Adolescence is a critical period, because major physical and psychologic changes occur during a very short period of time. Changes in dietary habits may induce different types of nutritional disorders and are likely to track into adulthood. The aim of this review is to describe the key findings related to nutritional status in European adolescents participating in the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study. We performed a cross-sectional study in 3528 (1845 females) adolescents aged 12.5–17.5 y. Birth weight was negatively associated with abdominal fat mass in adolescents and serum leptin concentrations (in female adolescents), providing additional evidence for a programming effect of birth weight on energy homeostasis control. Breakfast consumption was associated with lower body fat content and healthier cardiovascular profile. Adolescents eat half of the recommended amount of fruit and vegetables and less than two-thirds of the recommended amount of milk and milk products but consume more meat and meat products, fats, and sweets than recommended. For beverage consumption, sugar-sweetened beverages, sweetened milk, low-fat milk, and fruit juice provided the highest amount of energy. Although the intakes of saturated fatty acids (FAs) and salt were high, the intake of polyunsaturated FAs was low. Adolescents spent, on average, 9 h/d of their waking time (66–71% and 70–73% of the registered time in boys and girls, respectively) in sedentary activities. Factors associated with adolescents’ sedentary behavior included the following: 1) age; 2) media availability in the bedroom; 3) sleeping time; 4) breakfast consumption; and 5) season. Sedentary time was also associated with cardiovascular risk factors and bone mineral content. In European adolescents, deficient concentrations were identified for plasma folate (15%), vitamin D (15%), pyridoxal 5′-phosphate (5%), β-carotene (25%), and vitamin E (5%). Scientists and public

  10. Reliability and validity of the Adolescent Stress Questionnaire in a sample of European adolescents--the HELENA study.

    PubMed

    De Vriendt, Tineke; Clays, Els; Moreno, Luis A; Bergman, Patrick; Vicente-Rodriguez, Germán; Nagy, Eniko; Dietrich, Sabine; Manios, Yannis; De Henauw, Stefaan

    2011-09-23

    Since stress is hypothesized to play a role in the etiology of obesity during adolescence, research on associations between adolescent stress and obesity-related parameters and behaviours is essential. Due to lack of a well-established recent stress checklist for use in European adolescents, the study investigated the reliability and validity of the Adolescent Stress Questionnaire (ASQ) for assessing perceived stress in European adolescents. The ASQ was translated into the languages of the participating cities (Ghent, Stockholm, Vienna, Zaragoza, Pecs and Athens) and was implemented within the HELENA cross-sectional study. A total of 1140 European adolescents provided a valid ASQ, comprising 10 component scales, used for internal reliability (Cronbach α) and construct validity (confirmatory factor analysis or CFA). Contributions of socio-demographic (gender, age, pubertal stage, socio-economic status) characteristics to the ASQ score variances were investigated. Two-hundred adolescents also provided valid saliva samples for cortisol analysis to compare with the ASQ scores (criterion validity). Test-retest reliability was investigated using two ASQ assessments from 37 adolescents. Cronbach α-values of the ASQ scales (0.57 to 0.88) demonstrated a moderate internal reliability of the ASQ, and intraclass correlation coefficients (0.45 to 0.84) established an insufficient test-retest reliability of the ASQ. The adolescents' gender (girls had higher stress scores than boys) and pubertal stage (those in a post-pubertal development had higher stress scores than others) significantly contributed to the variance in ASQ scores, while their age and socio-economic status did not. CFA results showed that the original scale construct fitted moderately with the data in our European adolescent population. Only in boys, four out of 10 ASQ scale scores were a significant positive predictor for baseline wake-up salivary cortisol, suggesting a rather poor criterion validity of the

  11. Fluid consumption, total water intake and first morning urine osmolality in Spanish adolescents from Zaragoza: data from the HELENA study.

    PubMed

    Iglesia, I; Santaliestra-Pasías, A M; Bel-Serrat, S; Sadalla-Collese, T; Miguel-Berges, M L; Moreno, L A

    2016-05-01

    The objective of the study is to describe the hydration status and to assess the main food- and/or fluid intake-associated factors in healthy adolescents. A total of 194 adolescents from the city of Zaragoza aged 12.5-17.5 years (99 males) participating in the 'Healthy Lifestyle in Europe by Nutrition in Adolescence' (HELENA) cross-sectional study were included. First morning urine was collected, and osmolality was determined by freezing point depression osmometer. A self-reported computer-based 24-h dietary recall was applied the same day of the urine collection. Analysis of variance, Kruskal-Wallis procedure or Pearson's χ(2) analyses was used to examine the group associations. Seventy-one percent of adolescents did not meet the European Food Safety Agency (EFSA) recommendations for average total water intake (TWI), and 68% had high first morning urine osmolality values. TWI and the proportion of those meeting EFSA reference values significantly (P<0.05) decreased with increased osmolality. Males who met the EFSA recommendations consumed significantly (P<0.05) more plain water (1035.13 vs 582.68 ml) and dairy drinks (368.13 vs 226.68 ml) than those who did not. In females, the consumption of water (1359.41 vs 620.44 ml) and sugar-sweetened beverages (214.61 vs 127.42 ml) was significantly higher in those meeting the EFSA recommendations than in those who did not. First morning urine osmolality was associated with vegetables (unstandardized β: -0.6; 95% confidence interval (CI): -1.02 and -0.18) and fruits intake (β: -0.41; 95% CI: -0.63 and -0.19) in males and with dairy drinks (β: -0.39; 95% CI: -0.76 and -0.02) and fruits (β: -0.41; 95% CI: -0.73 and -0.10) in females. There was a high prevalence of inadequate TWI and high urine osmolality among these Spanish adolescents. Lower urine osmolality was associated with higher consumption of vegetables in males, dairy drinks in females and fruits in both males and females.

  12. Nutrition and Lifestyle in European Adolescents: The HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study123

    PubMed Central

    Moreno, Luis A.; Gottrand, Frédéric; Huybrechts, Inge; Ruiz, Jonatan R.; González-Gross, Marcela; DeHenauw, Stefaan

    2014-01-01

    Adolescence is a critical period, because major physical and psychologic changes occur during a very short period of time. Changes in dietary habits may induce different types of nutritional disorders and are likely to track into adulthood. The aim of this review is to describe the key findings related to nutritional status in European adolescents participating in the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study. We performed a cross-sectional study in 3528 (1845 females) adolescents aged 12.5–17.5 y. Birth weight was negatively associated with abdominal fat mass in adolescents and serum leptin concentrations (in female adolescents), providing additional evidence for a programming effect of birth weight on energy homeostasis control. Breakfast consumption was associated with lower body fat content and healthier cardiovascular profile. Adolescents eat half of the recommended amount of fruit and vegetables and less than two-thirds of the recommended amount of milk and milk products but consume more meat and meat products, fats, and sweets than recommended. For beverage consumption, sugar-sweetened beverages, sweetened milk, low-fat milk, and fruit juice provided the highest amount of energy. Although the intakes of saturated fatty acids (FAs) and salt were high, the intake of polyunsaturated FAs was low. Adolescents spent, on average, 9 h/d of their waking time (66–71% and 70–73% of the registered time in boys and girls, respectively) in sedentary activities. Factors associated with adolescents’ sedentary behavior included the following: 1) age; 2) media availability in the bedroom; 3) sleeping time; 4) breakfast consumption; and 5) season. Sedentary time was also associated with cardiovascular risk factors and bone mineral content. In European adolescents, deficient concentrations were identified for plasma folate (15%), vitamin D (15%), pyridoxal 5′-phosphate (5%), β-carotene (25%), and vitamin E (5%). Scientists and public

  13. Reliability and validity of the Adolescent Stress Questionnaire in a sample of European adolescents - the HELENA study

    PubMed Central

    2011-01-01

    Background Since stress is hypothesized to play a role in the etiology of obesity during adolescence, research on associations between adolescent stress and obesity-related parameters and behaviours is essential. Due to lack of a well-established recent stress checklist for use in European adolescents, the study investigated the reliability and validity of the Adolescent Stress Questionnaire (ASQ) for assessing perceived stress in European adolescents. Methods The ASQ was translated into the languages of the participating cities (Ghent, Stockholm, Vienna, Zaragoza, Pecs and Athens) and was implemented within the HELENA cross-sectional study. A total of 1140 European adolescents provided a valid ASQ, comprising 10 component scales, used for internal reliability (Cronbach α) and construct validity (confirmatory factor analysis or CFA). Contributions of socio-demographic (gender, age, pubertal stage, socio-economic status) characteristics to the ASQ score variances were investigated. Two-hundred adolescents also provided valid saliva samples for cortisol analysis to compare with the ASQ scores (criterion validity). Test-retest reliability was investigated using two ASQ assessments from 37 adolescents. Results Cronbach α-values of the ASQ scales (0.57 to 0.88) demonstrated a moderate internal reliability of the ASQ, and intraclass correlation coefficients (0.45 to 0.84) established an insufficient test-retest reliability of the ASQ. The adolescents' gender (girls had higher stress scores than boys) and pubertal stage (those in a post-pubertal development had higher stress scores than others) significantly contributed to the variance in ASQ scores, while their age and socio-economic status did not. CFA results showed that the original scale construct fitted moderately with the data in our European adolescent population. Only in boys, four out of 10 ASQ scale scores were a significant positive predictor for baseline wake-up salivary cortisol, suggesting a rather poor

  14. Late Mesozoic and possible early Tertiary accretion in western Washington State: the Helena-Haystack melange and the Darrington- Devils Mountain fault zone

    USGS Publications Warehouse

    Tabor, R.W.

    1994-01-01

    The Helena-Haystack melange (HH melange) and coincident Darrington-Devils Mountain fault zone (DDMFZ) in northwestern Washington separate two terranes, the northwest Cascade System (NWCS) and the western and eastern melange belts (WEMB). The two terranes of Paleozoic and Mesozoic rocks superficially resemble each other but record considerable differences in structural and metamorphic history. The HH melange is a serpentinite-matrix melange containing blocks of adjacent terranes but also exotic blocks. The HH melange must have formed between early Cretaceous and late middle Eocene time, because it contains tectonic clasts of early Cretaceous Shuksan Greenschist and is overlain by late middle Eocene sedimentary and volcanic rocks. The possible continuation of the DDMFZ to the northwest as the San Juan and the West Coast faults on Vancouver Island suggests that the structure has had a major role in the emplacement of all the westernmost terranes in the Pacific Northwest. -from Author

  15. Food intake of European adolescents in the light of different food-based dietary guidelines: results of the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study.

    PubMed

    Diethelm, Katharina; Jankovic, Nicole; Moreno, Luis A; Huybrechts, Inge; De Henauw, Stefaan; De Vriendt, Tineke; González-Gross, Marcela; Leclercq, Catherine; Gottrand, Frédéric; Gilbert, Chantal C; Dallongeville, Jean; Cuenca-Garcia, Magdalena; Manios, Yannis; Kafatos, Anthony; Plada, María; Kersting, Mathilde

    2012-03-01

    Since inadequate food consumption patterns during adolescence are not only linked with the occurrence of obesity in youth but also with the subsequent risk of developing diseases in adulthood, the establishment and maintenance of a healthy diet early in life is of great public health importance. Therefore, the aim of the present study was to describe and evaluate the food consumption of a well-characterized sample of European adolescents against food-based dietary guidelines for the first time. The HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study is a cross-sectional study, whose main objective was to obtain comparable data on a variety of nutritional and health-related parameters in adolescents aged 12·5-17·5 years. Ten cities in Europe. The initial sample consisted of more than 3000 European adolescents. Among these, 1593 adolescents (54 % female) had sufficient and plausible dietary data on energy and food intakes from two 24 h recalls using the HELENA-DIAT software. Food intake of adolescents in Europe is not optimal compared with the two food-based dietary guidelines, Optimized Mixed Diet and Food Guide Pyramid, examined in this study. Adolescents eat half of the recommended amount of fruit and vegetables and less than two-thirds of the recommended amount of milk (and milk products), but consume much more meat (and meat products), fats and sweets than recommended. However, median total energy intake may be estimated to be nearly in line with the recommendations. The results urge the need to improve the dietary habits of adolescents in order to maintain health in later life.

  16. Simulated carbon and nitrogen flows of the planktonic food web during an upwelling relaxation period in St Helena Bay (southern Benguela ecosystem) [review article

    NASA Astrophysics Data System (ADS)

    Touratier, Franck; Field, John G.; Moloney, Coleen L.

    2003-07-01

    A vertically resolved ecosystem model is developed to simulate the dynamics of the pelagic food web in St Helena Bay during a representative period of relaxation after an upwelling event. The proposed model aims at coupling three biogeochemical cycles (carbon, nitrogen and silicon), using several recently developed concepts of the stoichiometric approach. A consequence of this approach is that important qualitative aspects are introduced, such as indicators of phytoplankton physiological state or variable food C:N ratios. For instance, the sedimentation and exudation rates for phytoplankton vary according to physiological state. An attempt is made to parameterize and simulate the diel cycles for vertical migration and feeding rhythms of large zooplankton, two important mesoscale processes that are thought to influence the overall dynamics of the huge phytoplankton blooms in the region. Observations of the Anchor Station Experiment 1987 (ASE’87) are used to assess the quality of the model. There is overall agreement between observations and the corresponding simulated results. The timing, the magnitude, and the vertical structure of the phytoplankton bloom are well reproduced. The balances for carbon and nitrogen flows and stocks compare well to the numerous estimates found from the literature for the southern Benguela region. On the basis of the model results, the origin of the new nutrients, the fate of the carbon fixed by phytoplankton, and the importance of the microheterotrophic pathways are discussed. It is concluded that sediments of the St Helena Bay and surrounding areas may play a crucial role in increasing the level of phytoplankton production. The results also suggest that exudation is the main process by which the carbon fixed by phytoplankton would have been lost, and that microheterotrophic pathways would have been intense during the experiment.

  17. Dietary and lifestyle quality indices with/without physical activity and markers of insulin resistance in European adolescents: the HELENA study.

    PubMed

    Jiménez-Pavón, David; Sesé, Maria A; Huybrechts, Inge; Cuenca-García, Magdalena; Palacios, Gonzalo; Ruiz, Jonatan R; Breidenassel, Christina; Leclercq, Catherine; Beghin, Laurent; Plada, Maria; Manios, Yannis; Androutsos, Odysseas; Dallongeville, Jean; Kafatos, Anthony; Widhalm, Kurt; Molnar, Dénes; Moreno, Luis A

    2013-11-01

    Emerging data indicate that higher levels of insulin resistance (IR) are common among children and adolescents and are related to cardiometabolic risk; therefore, IR requires consideration early in life. In addition, there is a lack of conclusive evidence regarding the role of dietary nutrients on IR. The Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study (HELENA-CSS) was conducted in European adolescents aged 12·5–17·5 years. A total of 637 participants with valid homeostasis model assessment (HOMA) index data and who completed at least a 2 d 24 h dietary recall were included in the study (60% of the total HELENA-CSS sample). There were two dietary indices calculated, with the only difference between them being the inclusion or not of physical activity (PA). Markers of IR such as HOMA and the quantitative insulin sensitivity check index (QUICKI) were calculated. Pubertal status, BMI and cardiorespiratory fitness (CRF) were measured as potential confounders. The dietary index including PA was inversely associated with HOMA and directly with the QUICKI in females, but not in males, after adjusting for pubertal status, centre, BMI and CRF. In conclusion, the present study indicates that considering PA as part of the dietary index is of relevance as the resulted index is inversely related to IR independently of potential confounders including CRF. Overall, these findings suggest that intervention studies aimed at preventing IR in young people should focus on increasing the quality of the diet and also on including an optimal PA level in healthy adolescents.

  18. Hydrology of the Helena area bedrock, west-central Montana, 1993-98; with a section on geologic setting and a generalized bedrock geologic map

    USGS Publications Warehouse

    Thamke, Joanna N.; Reynolds, Mitchell W.

    2000-01-01

    The Generalized Bedrock Geologic Map of the Helena Area, West-Central Montana (plate 1 in the report) provides an intermediate-scale overview of bedrock in the Helena area. The geologic map has been compiled at a scale of 1:100,000 from the most widely available sources of geologic map information (see index to geologic mapping on pl. 1). That information has been updated by M.W. Reynolds for this report with more recent geologic mapping and field revision of published maps. All well locations and all bedrock units penetrated during drilling have been confirmed on geologic maps at the largest scale available. Source geologic maps are all at scales larger than 1:100,000 scale. Care has been taken to ensure accurate representation of the original geology at the compilation scale. However, positional accuracy of some features might be somewhat diminished at the smaller scale of the base map when compared with the original data source. Also, line thicknesses for contacts and faults necessarily assume a greater width, relative to the real geologic feature, at the scale of the generalized map than on any original map. The map is not intended for large-scale, site-specific detailed planning. Bedrock units throughout the Helena area are generally covered by young surficial deposits such as alluvium, colluvium, glacial debris, or windblown sediment. Thickness of such deposits varies from veneers through which the underlying bedrock is clearly discernible to major thicknesses that conceal all underlying bedrock and structure. Boundaries of major accumulations of surficial deposits are attributed separately from bedrock contacts. These boundaries should not be considered precise at the map scale or at larger scales. Boundaries shown may be less accurate positionally than bedrock contacts and faults because (1) surficial deposits commonly thin to a knife edge; (2) different mappers will interpret the edge differently when drawing a boundary; or (3) the original geologic map

  19. Breakfast habits and factors influencing food choices at breakfast in relation to socio-demographic and family factors among European adolescents. The HELENA Study.

    PubMed

    Hallström, Lena; Vereecken, Carine A; Ruiz, Jonatan R; Patterson, Emma; Gilbert, Chantal C; Catasta, Giovina; Díaz, Ligia-Esperanza; Gómez-Martínez, Sonia; González Gross, Marcela; Gottrand, Frédéric; Hegyi, Adrienn; Lehoux, Claire; Mouratidou, Theodora; Widham, Kurt; Aström, Annika; Moreno, Luis A; Sjöström, Michael

    2011-06-01

    Breakfast consumption has been shown to be an important indicator of a healthy lifestyle. Little is known however about factors influencing breakfast consumption and food choices at breakfast in adolescents. The aim of the present study was therefore to describe breakfast habits, and factors influencing food choices at breakfast within the framework of the EU-funded HELENA Study, in 3528 adolescents from ten European cities. Additionally, socio-demographic differences in breakfast habits and in influencing factors were investigated. Half of the adolescents (and fewer girls than boys) indicated being regular breakfast consumers. Girls with mothers with a high level of education, boys from 'traditional' families and boys who perceived low family affluence were positively associated with breakfast consumption. Boys whose parents gave encouragement and girls whose peers ate healthily were more likely to be regular breakfast consumers. 'Hunger', 'taste', 'health concerns' and 'parents or guardian' were the most important influences on the adolescents' food choices at breakfast. Adolescents from southern Europe and girls reported to be more influenced by personal and socio-environmental factors. Socio-demographic differences, in particular regional and gender differences, need to be considered in discussions surrounding the development of nutritional intervention programs intended for adolescents. Copyright © 2011 Elsevier Ltd. All rights reserved.

  20. Lunch at school, at home or elsewhere. Where do adolescents usually get it and what do they eat? Results of the HELENA Study.

    PubMed

    Müller, Katrin; Libuda, Lars; Diethelm, Katharina; Huybrechts, Inge; Moreno, Luis A; Manios, Yannis; Mistura, Lorenza; Dallongeville, Jean; Kafatos, Anthony; González-Gross, Marcela; Cuenca-García, Magdalena; Sjöström, Michael; Hallström, Lena; Widhalm, Kurt; Kersting, Mathilde

    2013-12-01

    Considering the lack of uniformity regarding school meals in Europe, information on adolescents' school lunch patterns is of public health importance. Thus, the aim of this analysis was to describe and evaluate lunchtime energy and food intake of European adolescents at different lunch locations. Data on nutritional and health-related parameters were derived from the HEalthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study (HELENA-CSS). A sub-sample of 891 adolescents (47% male) with plausible data on total and lunchtime energy intake (2 × 24 h recall) as well as usual lunch location was considered. Food intake was compared to lunch of the Optimized Mixed Diet (OMD) for children and adolescents. Although energy intake was nearly in line with the recommendations, food intake was suboptimal compared to the OMD regardless of usual lunch location. Adolescents had more potatoes and less sweets at school, and more drinks (water, coffee and tea) and vegetables at home when each compared with the other locations. Food intake of adolescents getting their lunch elsewhere was characterized by the smallest amounts of potatoes and the highest amounts of sweets. Although lunch patterns may differ among countries, schools in Europe do not seem to reveal all their potential to offer access to a healthy lunch for adolescents yet. Copyright © 2013 Elsevier Ltd. All rights reserved.

  1. Regular breakfast consumption is associated with higher blood vitamin status in adolescents: the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study.

    PubMed

    Mielgo-Ayuso, Juan; Valtueña, Jara; Cuenca-García, Magdalena; Gottrand, Fréderic; Breidenassel, Christina; Ferrari, Marika; Manios, Yannis; De Henauw, Stefaan; Widhalm, Kurt; Kafatos, Anthony; Kersting, Mathilde; Huybrechts, Inge; Moreno, Luis A; González-Gross, Marcela

    2017-06-01

    The present study aimed to examine the association between different breakfast consumption patterns and vitamin intakes and blood vitamin concentrations in European adolescents. Breakfast consumption was assessed by a questionnaire. Vitamin intake was calculated from two 24 h recalls. Blood vitamin and total homocysteine (tHcy) concentrations were analysed from fasting blood samples. The European Commission-funded HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study. Participants were 1058 (52·8 % females) European adolescents (aged 12·5-17·5 years) from ten cities. Lower vitamin D and vitamin C concentrations were observed in male and female breakfast skippers than in consumers (P<0·05). Female breakfast consumers presented higher holo-transcobalamin and lower tHcy (P<0·05), while males had higher cobalamin concentrations, compared with skippers (P<0·05). Higher vitamin D and total folate intakes were observed in adolescents who consumed breakfast compared with skippers (P<0·05). Likewise, female consumers had higher intakes of vitamin B6 and vitamin E than occasional consumers (P<0·05). Regular breakfast consumption is associated with higher blood vitamin D and cobalamin concentrations in males and with higher vitamin D and holo-transcobalamin and lower tHcy concentrations in females. Moreover, breakfast consumption is associated with high intakes of vitamin D and total folate in both sexes, and with high intakes of vitamin B6 and vitamin E in females.

  2. Elements concentration analysis in groundwater from the North Serra Geral aquifer in Santa Helena-Brazil using SR-TXRF spectrometer.

    PubMed

    Justen, Gisele C; Espinoza-Quiñones, Fernando R; Módenes, Aparecido Nivaldo; Bergamasco, Rosangela

    2012-01-01

    In this work the analysis of elements concentration in groundwater was performed using the synchrotron radiation total-reflection X-ray fluorescence (SR-TXRF) technique. A set of nine tube-wells with serious risk of contamination was chosen to monitor the mean concentration of elements in groundwater from the North Serra Geral aquifer in Santa Helena, Brazil, during 1 year. Element concentrations were determined applying a SR-TXRF methodology. The accuracy of SR-TXRF technique was validated by analysis of a certified reference material. As the groundwater composition in the North Serra Geral aquifer showed heterogeneity in the spatial distribution of eight major elements, a hierarchical clustering to the data was performed. By a similarity in their compositions, two of the nine wells were grouped in a first cluster, while the other seven were grouped in a second cluster. Calcium was the major element in all wells, with higher Ca concentration in the second cluster than in the first cluster. However, concentrations of Ti, V, Cr in the first cluster are slightly higher than those in the second cluster. The findings of this study within a monitoring program of tube-wells could provide a useful assessment of controls over groundwater composition and support management at regional level.

  3. Breakfast habits among European adolescents and their association with sociodemographic factors: the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study.

    PubMed

    Hallström, Lena; Vereecken, Carine A; Labayen, Idoia; Ruiz, Jonatan R; Le Donne, Cinzia; García, Magdalena Cuenca; Gilbert, Chantal C; Martínez, Sonia Gómez; Grammatikaki, Eva; Huybrechts, Inge; Kafatos, Anthony; Kersting, Mathilde; Manios, Yannis; Molnár, Dénes; Patterson, Emma; Widhalm, Kurt; De Vriendt, Tineke; Moreno, Luis A; Sjöström, Michael

    2012-10-01

    To describe breakfast habits at food group level in European adolescents and to investigate the associations between these habits and sociodemographic factors. Cross-sectional study. Secondary schools from nine European cities participating in the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study. Breakfast habits were assessed twice using a computer-based 24 h dietary recall. Adolescents who consumed breakfast on at least one recall day were classified as 'breakfast consumers' and adolescents who did not have anything for breakfast on either of the two recall days were considered 'breakfast skippers'. A 'breakfast quality index' to describe breakfast quality was created based on the consumption or non-consumption of cereals/cereal products, dairy products and fruits/vegetables. The sociodemographic factors studied were sex, age, region of Europe, maternal and paternal education, family structure and family affluence. Adolescents (n 2672, 53 % girls) aged 12-17 years. The majority of the adolescents reported a breakfast that scored poorly on the breakfast quality index. Older adolescents, adolescents from the southern part of Europe and adolescents from families with low socio-economic status were more likely to consume a low-quality breakfast. The study highlights the need to promote the consumption of a high-quality breakfast among adolescents, particularly in older adolescents, adolescents from southern Europe and adolescents from families with low socio-economic status, in order to improve public health.

  4. Feasibility Study of Biopower in East Helena, Montana. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Moriarty, K.

    2013-02-01

    The U.S. Environmental Protection Agency (EPA) developed the RE-Powering America's Land initiative to reuse contaminated sites for renewable energy generation when aligned with the community's vision for the site. The former American Smelting and Refining Company (Asarco) smelter in East Helena, Montana, was selected for a feasibility study under the initiative. Biomass was chosen as the renewable energy resource based on the wood products industry in the area. Biopower was selected as the technology based on Montana's renewable portfolio standard (RPS) requiring utilities to purchase renewable power.

  5. The role of dietary fat on the association between dietary amino acids and serum lipid profile in European adolescents participating in the HELENA Study.

    PubMed

    Bel-Serrat, S; Mouratidou, T; Huybrechts, I; Cuenca-García, M; Manios, Y; Gómez-Martínez, S; Molnár, D; Kafatos, A; Gottrand, F; Widhalm, K; Sjöström, M; Wästlund, A; Stehle, P; Azzini, E; Vyncke, K; González-Gross, M; Moreno, L A

    2014-04-01

    The objective of this study was to examine the relationship between amino acid (AA) intake and serum lipid profile in European adolescents from eight European cities participating in the cross-sectional (2006-2007) HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study, and to assess whether this association was independent of total fat intake. Diet, skinfold thickness, triglycerides (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-c), TC/HDL-c ratio, low-density lipoprotein cholesterol (LDL-c), apolipoprotein B (Apo B), apolipoprotein A1 (Apo A1) and Apo B/Apo A1 ratio were measured in 454 12.5- to 17.5-year-old adolescents (44% boys). Intake was assessed via two non-consecutive 24-h dietary recalls. Data on maternal education and sedentary behaviors were obtained via questionnaires. Physical activity was objectively measured by accelerometry. Alanine, arginine, asparaginic acid, glycine, histidine, lysine and serine intakes were inversely associated with serum TG concentrations in both boys and girls. Intake of other AA like alanine and/or arginine was also inversely associated with serum TC, LDL-c and Apo B/Apo A1 ratio only in girls. An inverse association was observed between intakes of alanine, isoleucine, leucine, methionine, serine, tryptophan, tyrosine and valine and TC/HDL-c ratio among female adolescents. Similar results were found in males for serine and tryptophan intakes. It is noteworthy, however, that associations were no longer significant in both genders when total fat intake was considered as a confounding factor. In this sample of adolescents, the association between AA intakes and serum lipid profile did not persist when dietary fat was considered. Therefore, dietary interventions and health promotion activities should focus on fat intake to improve lipid profile and potentially prevent cardiovascular disease.

  6. Dietary animal and plant protein intakes and their associations with obesity and cardio-metabolic indicators in European adolescents: the HELENA cross-sectional study.

    PubMed

    Lin, Yi; Mouratidou, Theodora; Vereecken, Carine; Kersting, Mathilde; Bolca, Selin; de Moraes, Augusto César F; Cuenca-García, Magdalena; Moreno, Luis A; González-Gross, Marcela; Valtueña, Jara; Labayen, Idoia; Grammatikaki, Evangelia; Hallstrom, Lena; Leclercq, Catherine; Ferrari, Marika; Gottrand, Frederic; Beghin, Laurent; Manios, Yannis; Ottevaere, Charlene; Van Oyen, Herman; Molnar, Denes; Kafatos, Anthony; Widhalm, Kurt; Gómez-Martinez, Sonia; Prieto, Ligia Esperanza Díaz; De Henauw, Stefaan; Huybrechts, Inge

    2015-01-21

    Previous studies suggest that dietary protein might play a beneficial role in combating obesity and its related chronic diseases. Total, animal and plant protein intakes and their associations with anthropometry and serum biomarkers in European adolescents using one standardised methodology across European countries are not well documented. To evaluate total, animal and plant protein intakes in European adolescents stratified by gender and age, and to investigate their associations with cardio-metabolic indicators (anthropometry and biomarkers). The current analysis included 1804 randomly selected adolescents participating in the HELENA study (conducted in 2006-2007) aged 12.5-17.5 y (47% males) who completed two non-consecutive computerised 24-h dietary recalls. Associations between animal and plant protein intakes, and anthropometry and serum biomarkers were examined with General linear Model multivariate analysis. Average total protein intake exceeded the recommendations of World Health Organization and European Food Safety Authority. Mean total protein intake was 96 g/d (59% derived from animal protein). Total, animal and plant protein intakes (g/d) were significantly lower in females than in males and total and plant protein intakes were lower in younger participants (12.5-14.9 y). Protein intake was significantly lower in underweight subjects and higher in obese ones; the direction of the relationship was reversed after adjustments for body weight (g/(kg.d)). The inverse association of plant protein intakes was stronger with BMI z-score and body fat percentage (BF%) compared to animal protein intakes. Additionally, BMI and BF% were positively associated with energy percentage of animal protein. This sample of European adolescents appeared to have adequate total protein intake. Our findings suggest that plant protein intakes may play a role in preventing obesity among European adolescents. Further longitudinal studies are needed to investigate the potential

  7. Objectively-measured and self-reported physical activity and fitness in relation to inflammatory markers in European adolescents: the HELENA Study.

    PubMed

    Martinez-Gomez, David; Gomez-Martinez, Sonia; Ruiz, Jonatan R; Diaz, Ligia Esperanza; Ortega, Francisco B; Widhalm, Kurt; Cuenca-Garcia, Magdalena; Manios, Yannis; De Vriendt, Tineke; Molnar, Denes; Huybrechts, Inge; Breidenassel, Christina; Gottrand, Frederic; Plada, Maria; Moreno, Sara; Ferrari, Marika; Moreno, Luis A; Sjöström, Michael; Marcos, Ascension

    2012-03-01

    Atherogenesis involves an inflammatory process that occurs early in life even though clinical symptoms are not observed until adulthood. Two important protective factors for low-grade inflammation may be physical activity (PA) and fitness. We examined the independent associations of objective and subjective measurements of PA and fitness with low-grade inflammation in European adolescents. A total of 1045 adolescents, aged from 12.5 to 17.5 years old from 10 European cities, were selected from the HELENA-Cross-Sectional Study. Objectively-measured and self-reported PA variables were obtained by accelerometry and the International PA Questionnaire for Adolescents, respectively. Overall, cardiorespiratory, muscular and motor fitness variables were assessed by standardized field-based fitness tests and the International Fitness Scale. C-reactive protein (CRP), complement factors 3 (C3) and 4 (C4), interleukin-6 and TNF-α inflammatory markers were measured. Objectively-measured vigorous PA was inversely associated with C3 (β=-0.094, P=0.021) but it did not remain significant after any objective fitness indicator was included in the model. Other objectively measured or self-reported assessments of PA were not significantly associated with inflammatory markers. All objective measures of fitness were inversely associated with CRP, C3 and C4, whereas only self-reported motor fitness remained significantly associated with C3, C4 and TNF-α. All these observations were independent of age, sex, city and body mass index or waist circumference. High PA in adolescence may play an indirect role on lessening low-grade inflammation through improvements in fitness. Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

  8. Leptin, vitamin D, and cardiorespiratory fitness as risk factors for insulin resistance in European adolescents: gender differences in the HELENA Study.

    PubMed

    Jiménez-Pavón, David; Sesé, María A; Valtueña, Jara; Cuenca-García, Magdalena; González-Gross, Marcela; Gottrand, Frederic; Kafatos, Anthony; Manios, Yannis; Widhalm, Kurt; de Henauw, Stefaan; Polito, Angela; Pérez-López, Faustino R; Moreno, Luis A

    2014-05-01

    The purpose of this study was to identify the relevance of a set of risk factors for insulin resistance in adolescents from Europe and to consider their possible gender-specific associations. The Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study (HELENA-CSS) was conducted in 1053 European adolescents (mean age, 14.9 years) in a school setting in 9 countries. Three anthropometric markers of body fat and a dietary index were calculated. Total energy intake was estimated from a questionnaire. C-reactive protein, leptin, and vitamin D were assessed, and physical activity, cardiorespiratory fitness, and muscular strength were measured. Center, socioeconomic status, pubertal status, and season were used as potential confounders. The main outcome was the homeostasis model assessment used as a marker of insulin resistance. Correlations, analyses of covariance, and logistic regression models were used. In males, leptin was the only risk factor for insulin resistance after adjusting for confounders including markers of body fat (odds ratios (ORs) from 1.49 to 1.60). In females, leptin, vitamin D, and fitness were the remaining independent risk factors for insulin resistance after adjustments (OR 2.11; 95% confidential interval (CI) 1.29-3.45; OR 0.50, 95% CI 0.31-0.80; and OR 0.54, 95% CI 0.33-0.87, respectively). Our observations suggest a gender dimorphism in the identification of risk factors for high insulin resistance. Preventive strategies should focus on improving modifiable factors such as cardiorespiratory fitness and on ensuring vitamin D sufficiency. Randomized controlled trials focusing on these strategies are necessary to test their efficacy.

  9. Dietary sources and sociodemographic and lifestyle factors affecting vitamin D and calcium intakes in European adolescents: the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) Study.

    PubMed

    Julián, Cristina; Mouratidou, Theodora; Vicente-Rodriguez, Germán; Gracia-Marco, Luis; Valtueña, Jara; González-Gross, Marcela; Ferrari, Marika; Gottrand, Frederic; Manios, Yannis; de la O, Alejandro; Widhalm, Kurt; Molnár, Dénes; Kafatos, Antonios; Sjöström, Michael; Kersting, Mathilde; Gunter, Marc J; De Henauw, Stefaan; Moreno, Luis A; Huybrechts, Inge

    2017-06-01

    To investigate dietary sources of Ca and vitamin D (VitD) intakes, and the associated sociodemographic and lifestyle factors, among European adolescents. Linear regression mixed models were used to examine sex-specific associations of Ca and VitD intakes with parental education, family affluence (FAS), physical activity and television (TV) watching while controlling for age, Tanner stage, energy intake and diet quality. The Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA)Cross-Sectional Study. Adolescents aged 12·5-17·5 years (n 1804). Milk and cheese were the main sources of Ca (23 and 19 % contribution to overall Ca intake, respectively). Fish products were the main VitD source (30 % contribution to overall VitD intake). Ca intake was positively associated with maternal education (β=56·41; 95 % CI 1·98, 110·82) and negatively associated with TV viewing in boys (β=-0·43; 95 % CI -0·79, -0·07); however, the significance of these associations disappeared when adjusting for diet quality. In girls, Ca intake was positively associated with mother's (β=73·08; 95 % CI 34·41, 111·74) and father's education (β=43·29; 95 % CI 5·44, 81·14) and FAS (β=37·45; 95 % CI 2·25, 72·65). This association between Ca intake and mother's education remained significant after further adjustment for diet quality (β=41·66; 95 % CI 0·94, 82·38). Girls with high-educated mothers had higher Ca intake. Low-educated families with poor diet quality may be targeted when strategizing health promotion programmes to enhance dietary Ca.

  10. Geologic setting, sedimentary architecture, and paragenesis of the Mesoproterozoic sediment-hosted Sheep Creek Cu-Co-Ag deposit, Helena embayment, Montana

    USGS Publications Warehouse

    Graham, Garth; Hitzman, Murray W.; Zieg, Jerry

    2012-01-01

    The northern margin of the Helena Embayment contains extensive syngenetic to diagenetic massive pyrite horizons that extend over 25 km along the Volcano Valley-Buttress fault zone and extend up to 8 km basinward (south) within the Mesoproterozoic Newland Formation. The Sheep Creek Cu-Co deposit occurs within a structural block along a bend in the fault system, where replacement-style chalcopyrite mineralization is spatially associated mostly with the two stratigraphically lowest massive pyrite zones. These mineralized pyritic horizons are intercalated with debris flows derived from synsedimentary movement along the Volcano Valley-Buttress fault zone. Cominco American Inc. delineated a geologic resource of 4.5 Mt at 2.5% Cu and 0.1% Co in the upper sulfide zone and 4 Mt at 4% Cu within the lower sulfide zone. More recently, Tintina Resources Inc. has delineated an inferred resource of 8.48 Mt at 2.96% Cu, 0.12% Co, and 16.4 g/t Ag in the upper sulfide zone. The more intact upper sulfide zone displays significant thickness variations along strike thought to represent formation in at least three separate subbasins. The largest accumulation of mineralized sulfide in the upper zone occurs as an N-S–trending body that thickens southward from the generally E trending Volcano Valley Fault and probably occupies a paleograben controlled by normal faults in the hanging wall of the Volcano Valley Fault. Early microcrystalline to framboidal pyrite was accompanied by abundant and local barite deposition in the upper and lower sulfide zones, respectively. The sulfide bodies underwent intense (lower sulfide zone) to localized (upper sulfide zone) recrystallization and overprinting by coarser-grained pyrite and minor marcasite that is intergrown with and replaces dolomite. Silicification and paragenetically late chalcopyrite, along with minor tennantite in the upper sulfide zone, replaces fine-grained pyrite, barite, and carbonate. The restriction of chalcopyrite to inferred

  11. Association of breakfast consumption with objectively measured and self-reported physical activity, sedentary time and physical fitness in European adolescents: the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study.

    PubMed

    Cuenca-García, Magdalena; Ruiz, Jonatan R; Ortega, Francisco B; Labayen, Idoia; González-Gross, Marcela; Moreno, Luis A; Gomez-Martinez, Sonia; Ciarapica, Donatella; Hallström, Lena; Wästlund, Acki; Molnar, Dénes; Gottrand, Frederic; Manios, Yannis; Widhalm, Kurt; Kafatos, Anthony; De Henauw, Stefaan; Sjöström, Michael; Castillo, Manuel J

    2014-10-01

    To examine the association of breakfast consumption with objectively measured and self-reported physical activity, sedentary time and physical fitness. The HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Cross-Sectional Study. Breakfast consumption was assessed by two non-consecutive 24 h recalls and by a 'Food Choices and Preferences' questionnaire. Physical activity, sedentary time and physical fitness components (cardiorespiratory fitness, muscular fitness and speed/agility) were measured and self-reported. Socio-economic status was assessed by questionnaire. Ten European cities. Adolescents (n 2148; aged 12·5-17·5 years). Breakfast consumption was not associated with measured or self-reported physical activity. However, 24 h recall breakfast consumption was related to measured sedentary time in males and females; although results were not confirmed when using other methods to assess breakfast patterns or sedentary time. Breakfast consumption was not related to muscular fitness and speed/agility in males and females. However, male breakfast consumers had higher cardiorespiratory fitness compared with occasional breakfast consumers and breakfast skippers, while no differences were observed in females. Overall, results were consistent using different methods to assess breakfast consumption or cardiorespiratory fitness (all P ≤ 0·005). In addition, both male and female breakfast skippers (assessed by 24 h recall) were less likely to have high measured cardiorespiratory fitness compared with breakfast consumers (OR = 0·33; 95% CI 0·18, 0·59 and OR = 0·56; 95%CI 0·32, 0·98, respectively). Results persisted across methods. Skipping breakfast does not seem to be related to physical activity, sedentary time or muscular fitness and speed/agility as physical fitness components in European adolescents; yet it is associated with both measured and self-reported cardiorespiratory fitness, which extends previous findings.

  12. Pilot evaluation of the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Food-O-Meter, a computer-tailored nutrition advice for adolescents: a study in six European cities.

    PubMed

    Maes, Lea; Cook, Tina Louisa; Ottovaere, Charlene; Matthijs, Christophe; Moreno, Luis A; Kersting, Mathilde; Papadaki, Alina; Manios, Yannis; Dietrich, Sabine; Hallström, Lena; Haerens, Leen; De Bourdeaudhuij, Ilse; Vereecken, Carine

    2011-07-01

    To investigate the feasibility and impact of the Food-O-Meter, an Internet-based computer-tailored nutrition intervention in adolescents. Participants in the intervention condition received the computer-tailored advice at baseline and at 1 month, those in the control condition received standardised advice. Effects were evaluated at 1 month (n 621) and at 3 months (n 558) using multi-level modelling. Secondary schools in six European cities. Adolescents accessed the intervention in the school computer room under the supervision of teachers. Classes with students aged 12-17 years in the schools participating in the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) cross-sectional study were randomised into intervention and control schools. In most participating centres the intervention was feasible and generally well appreciated, especially by girls. Technical problems and lack of motivation of the teachers hindered implementation in some centres. Overweight adolescents had higher scores for reading and using the advice than normal weight adolescents. After 1 month adolescents receiving the standardised advice reported an increase in fat intake, while fat intake in the intervention condition was stable (F = 4·82, P < 0·05). After 3 months, there was a trend in the total group for an intervention effect of the tailored advice on fat intake (F = 2·80, P < 0·10). In the overweight group there was a clear positive effect (F = 5·76, P < 0·05). The Food-O-Meter should be developed further. The results were modest but clear for percentage energy from fat, specifically in the overweight group. Adaptations based on new research are needed to enhance the reliability and effectiveness of the intervention.

  13. Can differences in physical activity by socio-economic status in European adolescents be explained by differences in psychosocial correlates? A mediation analysis within the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study.

    PubMed

    De Cocker, Katrien; Artero, Enrique G; De Henauw, Stefaan; Dietrich, Sabine; Gottrand, Frédéric; Béghin, Laurent; Hagströmer, Maria; Sjöström, Michael; Plada, Maria; Manios, Yannis; Mauro, Beatrice; Molnár, Dénes; Moreno, Luis A; Ottevaere, Charlene; Valtueña, Jara; Maes, Lea; De Bourdeaudhuij, Ilse

    2012-11-01

    Socio-economic status (SES) has been positively associated with physical activity (PA) levels in adolescents. In order to tackle these social inequalities, information is needed about the underlying mechanisms of this association. The present study aimed to investigate the potential mediating role of psychosocial correlates of PA on the relationship between SES and PA in European adolescents. Cross-sectional study testing the mediating role of psychosocial correlates in the SES-PA association using the product-of-coefficients test of MacKinnon. Ten European cities in nine different countries, the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study. Adolescents (n 2780) aged 12·5-17·49 years self-reported on PA (moderate-to-vigorous intensity PA and total PA), SES indicators (education of the mother and Family Affluence Scale) and psychosocial correlates of PA (stage of change, attitudes, awareness, modelling, social support, self-efficacy, benefits, barriers and environmental correlates). SES (Family Affluence Scale) was significantly associated with moderate-to-vigorous intensity PA. According to single-mediator models, this association was significantly mediated by stage of change (t = 3·6, P ≤ 0·001), awareness (t = 2·7, 0·001 < P ≤ 0·01), modelling (t = 4·8, P ≤ 0·001), self-efficacy (t = 2·5, 0·01

  14. Oceanography, bathymetry and syndepositional tectonics of a Precambrian intracratonic basin: integrating sediments, storms, earthquakes and tsunamis in the Belt Supergroup (Helena Formation, ca. 1.45 Ga), western North America

    NASA Astrophysics Data System (ADS)

    Pratt, Brian R.

    2001-06-01

    The carbonate-dominated Helena Formation of the Mesoproterozoic Belt Supergroup of western North America provides an instructive example of how a range of regional depositional and environmental characteristics of an ancient sea can be deduced on the basis of micron- to metre-scale features. Particularly revealing is the window opened by the presence of abundant molar-tooth structure onto the paleoceanography, paleobathymetry, paleoclimate and tectonic regime of this intracratonic Precambrian basin. The facies hosting molar-tooth structure is composed dominantly of lime mud with substantial subangular quartz and feldspar silt and clay derived from the western and southwestern side of the basin. These are low-energy tempestites deposited on a remarkably flat sea bottom at the limit of storm-wave base, at about 50 m. Sporadic domical, stromatolite patch reefs confirm that the sea bottom was normally within the photic zone. The ubiquity of molar-tooth structure suggests frequent, near-field seismic activity during subsidence, which generated ground motion sufficient to liquefy granular lime mud and terrigenous silt. Sporadic tsunamis from major submarine faults far to the west pounded the shallow-water platform to the east. Tsunami off-surge swept ooids and rounded, coarse-grained, feldspathic quartz sand westward into deeper water, and created strongly erosive currents that left gutter casts composed of lags of preferentially cemented molar-tooth structure in otherwise relatively low-energy facies. Mineralogical and geochemical evidence, confirms that the Belt basin was marine. Organic matter was essentially fully oxidized in the water column. Original high-Mg composition and cementation of lime mud in molar-tooth structure indicate that calcite precipitated above the thermocline in supersaturated seawater under tropical conditions. Scattered bimineralic ooids in allochthonous grainstones indicate that shoals on the platform to the east were intermittently above a

  15. 27 CFR 9.149 - St. Helena.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 500 foot contour line in Section 7, Township 7 North (T7N), Range 5 West (R5W); (4) Thence along the 500 foot contour line in a generally northwesterly direction through Sections 7, 1 and 2, to its... feet to its intersection with the 400 foot contour line; (7) Thence along the 400 foot contour line...

  16. 27 CFR 9.149 - St. Helena.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ..., edition of 1958, photorevised 1980; (3) Rutherford Quadrangle, California, edition of 1951, photorevised... the State of California. The boundary is as follows: (1) Beginning on the Rutherford Quadrangle map at... southeast corner of Section 33, T8N, R5W, on the Rutherford Quadrangle map; (16) Thence in a...

  17. 27 CFR 9.149 - St. Helena.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., edition of 1958, photorevised 1980; (3) Rutherford Quadrangle, California, edition of 1951, photorevised... the State of California. The boundary is as follows: (1) Beginning on the Rutherford Quadrangle map at... southeast corner of Section 33, T8N, R5W, on the Rutherford Quadrangle map; (16) Thence in a...

  18. Q-GERT Model of the Contracting Cycle.

    DTIC Science & Technology

    1983-09-01

    the model accurately simulates what its designed to imitate. This model was designed to simulate the contracting cycle time of the Flight Dynamics...buying personnel provided estimates of a range of time to complete each task. The result was that the model successfully imitated the contracting cycle... time from receipt of the purchase request to the contract award. A manager can use the model to test the effect of changes in resources or procedures

  19. US EPA, Pesticide Product Label, HELENA ANIMAL HEALTH ...

    EPA Pesticide Factsheets

    2011-04-14

    ... 'L.:AS ANU TIl'KS: Til ,·.mt"111 ~ lind !.kk~ in IIl1ld .... ... uf wlllt·r'. Thnrllughl~' sl,rll.\\' llrl'lIS whl'rl' tllI~s . frt'.,ul'l· & sl,.t'I" On lawns lind uth.·r np.·n lltt·lIS. ...

  20. US EPA, Pesticide Product Label, HELENA BRAND ETHYL ...

    EPA Pesticide Factsheets

    2011-04-14

    ... lI.n9$"",1 poilon. It r.pidl, ,nl,,, Ihe it.4y by ""IIC' wi,,, ,n "i" • wfu ... ... TIIil pi"'''' is highly I .. ie to b~tt u:p".d I. lIiuct "fI''''' i"',, . n.,.. " I .. ti ... _' ... Mit;'" "" It. ...

  1. US EPA, Pesticide Product Label, HELENA DIAZINON 7E, 08 ...

    EPA Pesticide Factsheets

    2011-04-14

    ... III, I . !1·.Pl '\\ '~i)I\\ill ,I!, 'j}.., pt" ·,:.1-.1'11 1>" Il.'! .q'i,I', \\\\ilh;'! Pill' dI!- pf h.IT\\T-.:t Pf /11 ' 22 '! ... fake a second and third application at 4-5 week intervals. ...

  2. US EPA, Pesticide Product Label, HELENA PARATHION 3LB. ...

    EPA Pesticide Factsheets

    2011-04-14

    ... ' ." -. I. }: : 1. 11' I.: • h'h .... n .. ' , , H, \\':: 1-.1J i:,_' Hil·j;: ~tl:~ UU n r )'... 1i'! IJ' clir(~ct.iJ' t-tl:.o~ [ i:: likcli' to t",) 11, ~ I .• ~ i ,~) J 1 :', ! .1\\lU}" .. : i ; t. ...

  3. US EPA, Pesticide Product Label, HELENA 15% PARATHION ...

    EPA Pesticide Factsheets

    2011-04-14

    ... t' •• _., '11 .\\' l·r .... 1 "-.1· ... ' f,( r· •• ~· I):~,.r\\- t'd,-rv.t ~h·· I' I!;"!i' ~ L",tld Ill' ~'I\\'f'11 .,t,:! tf'r;ff-i~! ,. I" ',. . t ... - . ... Oran~e tortrj )" - 1 2/3 lb. ...

  4. US EPA, Pesticide Product Label, HELENA BRAND 6 LB. ...

    EPA Pesticide Factsheets

    2011-04-14

    ... I ! nr r , ' I ' i • I IT (!1'- ~'1. \\", __ 1 J , • Em u lsi f ia b I e I rlsecti ci de Con G e (ltrat WARNING , 1 I f: .1 i 1 i ., f 1 (' I I III 1 ,~\\ () I !) J ( ) " .. I ) I II >Jl per ...

  5. 75 FR 1748 - Helena National Forest, Montana, Stonewall Vegetation Project

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-13

    ... susceptible to insect and wildfire mortality (Douglas-fir and lodgepole pine). In addition, a large-scale... conditions are elevating fuel levels which pose a wildfire threat to nearby homes and communities in the... this project area has become a more uniform dense forest susceptible to insect and wildfire...

  6. Complicating Gert Biesta's Account of Subjectification: ŽIžekian Negativity and Buddhist "SuNyata"

    ERIC Educational Resources Information Center

    Oral, Sevket Benhur

    2016-01-01

    Biesta identifies three functions that educational systems perform: qualification, socialization, and subjectification. Subjectification involves ways of being whereby individuals exercise their capacity to remain independent from the existing orders by challenging their uncontested insertion into these orders. For Biesta, becoming a subject…

  7. Impact of Activation Optimization on the Vandenberg Ground Support System Using Q-GERT Analysis.

    DTIC Science & Technology

    1984-09-01

    it be the primary method for launching NASA, DOD, and commercial payloads into orbit. It is imperative that the STS be operated in the most...decision makers with a method to understand, analyze, and improve the GSS. This GSS is essentially a network of activities com- prised of a series...the time between activities/nodes according to several distribution methods , thereby allowing for the most "realistic" distribution to be used

  8. Development of methods for equivalent transformation of GERT networks for application in multi-version software

    NASA Astrophysics Data System (ADS)

    Saramud, M. V.; Zelenkov, P. V.; Kovalev, I. V.; Kovalev, D. I.; Kartsan, I. N.

    2016-11-01

    The usage of information and control systems in various fields of production and research requires a certain level of reliability in the functioning of these systems. One of the most promising and already positively proven methodologies to ensure high reliability and fault tolerance of software is multi-version designing. The greatest value this factor have in the areas where control system failure can result in significant financial and material losses, as well as harm to human health and life.

  9. A Transportation Model for a Space Colonization and Manufacturing System: A Q-GERT Simulation.

    DTIC Science & Technology

    1982-12-01

    RAD-RI247685 A TRANSPORTATION MODEL OR A SPACE COLONIZATION AND1/ MANUFACTURING SYSTEM:..U) AIR FORCE INST OF TECH NRIGHT-PATTERSON AFB OH SCHOOL OF...it$ ""distribution is unlimitd- L CTF r DEPARTMENT OF THE AIR FORCE FEB 22 3 C.. AIR UNIVERSITY (ATC) • AIR FORCE INSTITUTE OF TECHNOLOG L&J Wright...Patterson Air Force Base, Ohio _ rig 2Z. 1" 7 AF IT/GSO/OS/82D-6 A TRANSPORTATION MODEL F AR SPACE . I a, cND MANUFACTURING SY-TEM: A 0--CtERT

  10. An Analysis of Air Force Avionic Test Station Utilization Using Q-Gert Modeling and Simulation.

    DTIC Science & Technology

    1979-12-01

    LAPrL tVE. E u beP CE K, AVEPAr.E ’U "Q1E 0 Schr? 115.C? c7t c. 16. 16 6.1501 25 ~APAO .1� . 1. C.5292 2F r. ,- Cc F 6 c. 1. 1 .4979 ’Q ’IWAD .Z201...Evaluation Center, Kirtland Air Force Base, New Mexico , 1979. 10. Drake, William F., III, Rolland R. Fisher, and John R. Younger, "Logistics Composite...Air Force Base, New Mexico , (May 1976). 19. HQ/AFTEC, "F-16 FOT & E Phase II Suitability Test Plan - Annex E," Air Force Test and Evaluation Center

  11. Automated Q-Gert Source Code Generation Using Computer Aided Design.

    DTIC Science & Technology

    1983-12-01

    17. Shannon , Robert E..a ysars S&Lmfla.Ln.za- ±ba Sat and Saciana. Englewood Cliffs, N.J.: Prentice-Hall Inc., 1975. 18. Sippl , Charles J. tinn...34Notes on Absolute Location Interfaces to Apple Pascal." BYTE. pp 324-325, (September 1980). 21. Spoonamore , Janet, Kenneth Crawford, Edgar Neely

  12. An Analysis of the Space Transportation System Launch Rate Capability Utilizing Q-GERT Simulation Techniques.

    DTIC Science & Technology

    1982-12-01

    Vehicle Assembly Building (VAB) and attached to a Mobile Launch Platform (LP). The remaining SHE segments and the forward skirt are stacked, and an...Orbiter Processing Facility (OPP) bays, 3. Crawlers, L. Launch Pads, 3. Mobile Launch Pads, 6. Vehicle Assembly Building (VAB) High Bays, 7. Processing and...Clarenoe A. Jr. "Dean Weapons Tectnology Expanding," Aviation Week & Sc Tehnology , 114 (21), 40-47 (25 May 1981). 5. Covaultv Craig. "Payloads to

  13. Complicating Gert Biesta's Account of Subjectification: ŽIžekian Negativity and Buddhist "SuNyata"

    ERIC Educational Resources Information Center

    Oral, Sevket Benhur

    2016-01-01

    Biesta identifies three functions that educational systems perform: qualification, socialization, and subjectification. Subjectification involves ways of being whereby individuals exercise their capacity to remain independent from the existing orders by challenging their uncontested insertion into these orders. For Biesta, becoming a subject…

  14. 77 FR 61570 - Helena National Forest; Montana; Blackfoot Travel Plan EIS

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-10

    ... regarding the standard for elk hiding cover/open road density index. The plan amendment would be signed as a... establish a new standard for elk security for the herd units located within the project area. As a result... road density index. The proposed programmatic plan amendment would establish a new standard for elk...

  15. 76 FR 70955 - Helena Nation Forest: Dalton Mountain Forest Restoration & Fuels Reduction Project

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-16

    ... periodic fire; and capturing the value of removed trees in an economical approach. DATES: Comments... dominated by lodgepole pine. Tree mortality from a mountain pine beetle epidemic is extensive. This area lacks the desired forest structure and species diversity. Some other tree species native to the...

  16. Physical activity, sedentary time, and liver enzymes in adolescents: the HELENA study.

    PubMed

    Ruiz, Jonatan R; Labayen, Idoia; Ortega, Francisco B; Moreno, Luis A; Rodriguez, Gerardo; Breidenassel, Christina; Manios, Yannis; Kafatos, Anthony; Molnar, Denes; De Henauw, Stephaan; Gottrand, Frederic; Widhalm, Kurt; Castillo, Manuel J; Sjöström, Michael

    2014-06-01

    To examine the association between physical activity (PA) and liver enzyme levels in adolescents from nine European countries. The study comprised 718 adolescents (397 girls). PA was measured by accelerometry and expressed as total PA (counts/min), and time (min/d) engaged in moderate to vigorous intensity PA (MVPA). Time spent sedentary was also objectively measured. We measured serum levels of alanine aspartate aminotransferase (AST), alanine aminotransferase (ALT), and γ-glutamyltransferase (GGT), and the AST/ALT ratio was computed. There was an association between MVPA and AST and AST/ALT (age, sex, and center-adjusted β = 0.096, 95% confidence interval (CI): 0.016 to 0.118; and β = 0.090, 95% CI: 0.006 to 0.112, respectively). Meeting the PA recommendations (60 min/d of MVPA) was significantly associated with higher AST and AST/ALT, which persisted after further adjusting for sedentary time and waist circumference. Sedentary time was not associated with any of the studied liver enzyme levels. Meeting the current PA recommendations of 60 min/d of MVPA is associated with higher levels of AST and AST/ALT regardless of time spent sedentary as well as total and central body fat in European adolescents.

  17. Payne-Gaposchkin, Cecilia Helena [née Payne] (1900-79)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Astronomer, born in England, married Sergei Gaposchkin, first woman to become a full professor at Harvard. Worked on stellar atmospheres, and in her 1925 dissertation suggested correctly that the great range in strength, from star to star, of absorption lines in stellar spectra was due to differing amounts of ionization (differing temperatures), not differing chemical composition. She suggested t...

  18. Eating behaviour, insulin resistance and cluster of metabolic risk factors in European adolescents. The HELENA study.

    PubMed

    Sesé, Maria A; Jiménez-Pavón, David; Gilbert, Chantal C; González-Gross, Marcela; Gottrand, Frédéric; de Henauw, Stefaan; Breidenassel, Christina; Wärnberg, Julia; Widhalm, Kurt; Molnar, Dénes; Manios, Yannis; Cuenca-García, Magdalena; Kafatos, Anthony; Moreno, Luis A

    2012-08-01

    The present study examined the associations of food behaviours and preferences with markers of insulin resistance and clustered metabolic risk factors score after controlling for potential confounders, including body fat in European adolescents. A cross-sectional study "Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study" of 3546 European adolescents aged 12.5-17.5 years was conducted, using a complete dataset on at least glucose, insulin and "Food Choice Questionnaire". Results indicated skipping breakfast, as well as the preference of some foods such as nuts, chocolate, burgers and pizzas, soft drinks or juices, explain part of homeostasis model assessment index variance. In addition, snacking regularly during school day is associated with higher metabolic risk score in females. In conclusion, the present findings suggest that intervention studies aimed to prevent insulin resistance and metabolic risk factors in youth should focus not only in influencing food and drink preferences, but also to ensure healthy food behaviour in adolescents. The harmful consequences in the choice of certain foods or drinks and food habits can be countered with proper planning and intervention programs to prevent insulin resistance and metabolic risk factors. Copyright © 2012 Elsevier Ltd. All rights reserved.

  19. Excessive sedentary time and low cardiorespiratory fitness in European adolescents: the HELENA study.

    PubMed

    Martinez-Gomez, David; Ortega, Francisco B; Ruiz, Jonatan R; Vicente-Rodriguez, Germán; Veiga, Oscar L; Widhalm, Kurt; Manios, Yannis; Béghin, Laurent; Valtueña, Jara; Kafatos, Anthony; Molnar, Denes; Moreno, Luis A; Marcos, Ascension; Castillo, Manuel J; Sjöström, Michael

    2011-03-01

    The aims of this study were to examine what amount of sedentary time is associated with low cardiorespiratory fitness (CRF) in adolescents and whether this association is independent of physical activity. The study comprised 1808 adolescents aged 12.5-17.5 years from 10 European cities. Sedentary time and moderate-to-vigorous physical activity (MVPA) were measured by accelerometer. CRF was assessed by the 20 m shuttle-run test. Adolescents were divided into two groups (high/low) according to FITNESSGRAM guidelines. Receiver-operating characteristic (ROC) analysis was used to determine thresholds that best discriminate between high and low CRF in adolescents. Adolescent girls had more sedentary time than boys (p<0.001). ROC analysis showed that girls spending ≥69% of waking time in sedentary activities had low CRF, but no significant threshold discriminated between high and low CRF in boys. Adolescent girls who exceeded this threshold had lower levels of CRF (p≤0.001) and were more likely to have a low CRF (OR 1.68, 95% CI 1.22 to 2.31) independent of centre, age and body mass index. The negative influence of excessive sedentary time on CRF remained significant (p=0.045) in adolescent girls who did not meet the physical activity guidelines (<60 min/day in MVPA) but was abolished (p>0.05) in those who met the recommendation (≥60 min/day in MVPA). Excessive sedentary time is associated with low CRF in adolescent girls but not in boys. However, this adverse effect might be attenuated if adolescent girls meet the current physical activity guidelines.

  20. European adolescents' level of perceived stress and its relationship with body adiposity--the HELENA Study.

    PubMed

    De Vriendt, Tineke; Clays, Els; Maes, Lea; De Bourdeaudhuij, Ilse; Vicente-Rodriguez, Germàn; Moreno, Luis A; Nagy, Eniko; Molnár, Dénes; Ortega, Francisco B; Dietrich, Sabine; Manios, Yannis; De Henauw, Stefaan

    2012-08-01

    Since stress is hypothesized to be involved in the aetiology of obesity, the present study examined the current perception of stress in European adolescents and the association between adolescent perceived stress and their adiposity. Observational data from 1121 adolescents aged 12.5-17.5 years from six European cities involved in the Healthy Lifestyle in Europe by Nutrition in Adolescence cross-sectional study, was investigated. The adolescents completed the adolescent stress questionnaire, comprising 10 different stress dimensions. Anthropometric measurements (weight, height, skinfold thicknesses and circumferences) and bioelectrical impedance analysis were performed, and personal characteristics (age, pubertal stage and parental education) were collected. The measures of perceived stress were described for boys and girls separately and gender differences were investigated. Associations between the adolescents' perceived stress and indicators of general (body mass index z-score, sum of skinfold thicknesses and body fat%) and abdominal (waist and hip circumference, and waist/height ratio) adiposity were examined using hierarchical linear models. While girls reported systematically higher levels of stress compared with boys, their stress profiles were similar, with highest levels for school-related stress followed by future uncertainty. Only in girls, perceived stress was significantly associated with increased measures of general and abdominal adiposity. In boys, no relationship between perceived stress and adiposity measures was observed. School is reported to be an important source of adolescent stress and should be the focus of stress management campaigns. Only in girls, the hypothesis that stress might be involved in the aetiology of obesity during adolescence was supported.

  1. Seasonal variation in physical activity and sedentary time in different European regions. The HELENA study.

    PubMed

    Gracia-Marco, Luis; Ortega, Francisco B; Ruiz, Jonatan R; Williams, Craig A; Hagströmer, Maria; Manios, Yannis; Kafatos, Anthony; Béghin, Laurent; Polito, Angela; De Henauw, Stefaan; Valtueña, Jara; Widhalm, Kurt; Molnar, Denes; Alexy, Ute; Moreno, Luis A; Sjöström, Michael

    2013-01-01

    This report aims (1) to examine the association between seasonality and physical activity (PA) and sedentary time in European adolescents and (2) to investigate whether this association was influenced by geographical location (Central-North versus South of Europe), which implies more or less extreme weather and daylight hours. Valid data on PA, sedentary time and seasonality were obtained in 2173 adolescents (1175 females; 12.5-17.5 years) included in this study. Physical activity and sedentary time were measured by accelerometers. ANCOVA was conducted to analyse the differences in PA and sedentary time across seasons. Results showed that girls had lower levels of moderate to vigorous PA (MVPA) and average PA, and spent more time in sedentary activities in winter compared with spring (all P < 0.05). Stratified analyses showed differences in PA and sedentary time between winter and spring in European girls from Central-North of Europe (P < 0.05 for sedentary time). There were no differences between PA and sedentary time across seasonality in boys. In conclusion, winter is related with less time spent in MVPA, lower average PA and higher time spent in sedentary activities in European adolescent girls, compared with spring. These differences seem to mainly occur in Central-North Europe.

  2. Evaluation of iron status in European adolescents through biochemical iron indicators: the HELENA Study.

    PubMed

    Ferrari, M; Mistura, L; Patterson, E; Sjöström, M; Díaz, L E; Stehle, P; Gonzalez-Gross, M; Kersting, M; Widhalm, K; Molnár, D; Gottrand, F; De Henauw, S; Manios, Y; Kafatos, A; Moreno, L A; Leclercq, C

    2011-03-01

    To assess the iron status among European adolescents through selected biochemical parameters in a cross-sectional study performed in 10 European cities. Iron status was defined utilising biochemical indicators. Iron depletion was defined as low serum ferritin (SF<15 μg/l). Iron deficiency (ID) was defined as high-soluble transferrin receptor (sTfR>8.5 mg/l) plus iron depletion. Iron deficiency anaemia (IDA) was defined as ID with haemoglobin (Hb) below the WHO cutoff for age and sex: 12.0 g/dl for girls and for boys aged 12.5-14.99 years and 13.0 g/dl for boys aged ≥15 years. Enzyme linked immunosorbent assay was used as analytical method for SF, sTfR and C-reactive protein (CRP). Subjects with indication of inflammation (CRP >5 mg/l) were excluded from the analyses. A total of 940 adolescents aged 12.5-17.49 years (438 boys and 502 girls) were involved. The percentage of iron depletion was 17.6%, significantly higher in girls (21.0%) compared with boys (13.8%). The overall percentage of ID and IDA was 4.7 and 1.3%, respectively, with no significant differences between boys and girls. A correlation was observed between log (SF) and Hb (r = 0.36, P < 0.01), and between log (sTfR) and mean corpuscular haemoglobin (r = -0.30, P < 0.01). Iron body stores were estimated on the basis of log (sTfR/SF). A higher percentage of negative values of body iron was recorded in girls (16.5%) with respect to boys (8.3%), and body iron values tended to increase with age in boys, whereas the values remained stable in girls. To ensure adequate iron stores, specific attention should be given to girls at European level to ensure that their dietary intake of iron is adequate.

  3. Food consumption and screen-based sedentary behaviors in European adolescents: the HELENA study.

    PubMed

    Santaliestra-Pasías, Alba M; Mouratidou, Theodora; Verbestel, Vera; Huybrechts, Inge; Gottrand, Frederic; Le Donne, Cinzia; Cuenca-García, Magdalena; Díaz, Ligia E; Kafatos, Anthony; Manios, Yannis; Molnar, Dénes; Sjöström, Michael; Widhalm, Kurt; De Bourdeaudhuij, Ilse; Moreno, Luis A

    2012-11-01

    To examine the association between time spent on different sedentary behaviors and consumption of certain food and beverage groups in a sample of European adolescents. Data from the Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-sectional Study. Eight survey centers (Athens, Dortmund, Ghent, Lille, Rome, Stockholm, Vienna, and Zaragoza). A total of 2202 participants (45.5% boys) aged 12½ to 17½ years. Information on sedentary behaviors (weekdays and weekends) collected via a standardized self-reported questionnaire, including watching television, playing computer and video games, using the Internet for studying or recreation, and studying. Food and beverage consumption data of selected groups were obtained using 2 nonconsecutive 24-hour recalls. Boys reporting more than 4 h/d of watching television, playing computer games, and using the Internet for recreation were more likely to consume sweetened beverages (weekends) (odds ratio [OR], 1.83 [95% CI, 1.21-2.75]; 1.99 [1.31-3.01]; and 1.73 [1.03-2.91], respectively), and less likely to consume fruit (weekdays) (0.39 [0.21-0.72], 0.37 [0.18-0.77], and 0.39 [0.19-0.78], respectively) than those who spent less than 2 h/d. Girls spending more time per day watching television and playing computer or video games (weekdays) and playing computer games or surfing the Internet for recreation (weekends) were more likely to drink sweetened beverages (OR, 1.89 [95% CI, 1.21-2.94]; 1.57 [1.00-2.46]; 2.14 [1.16-3.97]; and 2.30 [1.24-4.28], respectively) and less likely to consume fruit (weekdays) (0.43 [0.23-0.80], 0.40 [0.19-0.83], 0.37 [0.14-0.94], and 0.42 [0.20-0.85], respectively) than those who spent less than 2 h/d. Increased television viewing and computer and Internet use during adolescence is associated with higher odds of consumption of sweetened beverages and lower odds of fruit consumption.

  4. Bone mass and bone metabolism markers during adolescence: The HELENA Study.

    PubMed

    Gracia-Marco, L; Vicente-Rodríguez, G; Valtueña, J; Rey-López, J P; Díaz Martínez, A E; Mesana, M I; Widhalm, K; Ruiz, J R; González-Gross, M; Castillo, M J; Moreno, L A

    2010-01-01

    The assessment of bone mineral content (BMC) and density (BMD) status in children and adolescents is important for health and the prevention of diseases. Bone metabolic activity could provide early information on bone mass development. Our aim was to describe bone mass and metabolism markers according to age and Tanner stage in adolescents. Spanish adolescents (n = 345; 168 males and 177 females) aged 12.5-17.5 years participated in this cross-sectional study. Body composition variables were measured by dual-energy X-ray absorptiometry. Serum osteocalcin (n = 101), aminoterminal propeptide of type I procollagen (n = 92) and β-isomerized C-telopeptides (β-CTX, n = 65) and urine samples (β-CTX; n = 237) were analyzed by electrochemiluminescence immunoassay. Analysis of covariance showed that females had higher values for BMC and BMD in most of the regions. Both males and females had a significant decrease in bone markers while sexual maturation increases (all p < 0.05). Males had an increased bone turnover compared to females (all p < 0.05, except for urine β-CTX in Tanner ≤IV). Our results support the evidence of dimorphic site-specific bone accretion between sexes and show an increased bone turnover in males, suggesting higher metabolic activity. Copyright © 2010 S. Karger AG, Basel.

  5. Associations of birth weight with serum long chain polyunsaturated fatty acids in adolescents; the HELENA study.

    PubMed

    Labayen, Idoia; Moreno, Luis A; Ruiz, Jonatan R; Ortega, Francisco B; Sjostrom, Michael; Huybrechts, Inge; Gonzalez-Gross, Marcela; Spinneker, André; De Henauw, Stefaan; Manios, Yannis; Molnar, Dénés; Leclercq, Catherine; Gottrand, Frédéric

    2011-07-01

    Nutritional factors in early life may have long-term physiologic effects in humans. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) play important roles in protecting against cardiovascular disease (CVD) risk. Our aim was to examine the association of birth weight (BW) with serum long chain polyunsaturated fatty acids (LCPUFA) profile in adolescents. A total of 772 European adolescents (56.3% females) aged 14.7 ± 1.2 years were included in this study. Information on BW and gestational age was obtained from parental records. DHA, EPA and arachidonic acid (AA) concentrations were measured in serum phospholipids. Alfa-linolenic (ALA), linoleic (LA), AA, EPA and DHA intakes assessed by a computer based 24h dietary recall. Gender, gestational age, pubertal status, body mass index, center and total energy and LCPUFA intakes were used as confounders in all the analyses. BW was significantly associated with serum DHA and EPA (both adjusted P<0.05) independently of potential confounders including their main dietetic source. We did not observe any significant relationship between BW and serum AA levels. Our findings suggest that early metabolic changes, as a result from prenatal environmental influences, could affect long chain polyunsaturated fatty acid metabolism later in life. These results may contribute to explain the relationship between early nutrition and growth and later metabolic disorders as CVD. Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

  6. 76 FR 55643 - Helena National Forest; Montana; Divide Travel Plan EIS

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-08

    ... for wheeled and over-snow motorized vehicles. Consistent with Forest Service travel planning... different dates. Open approximately 106 miles of road to over-snow motorized use 12/2--5/15. Approximately 64 miles of these routes are in areas where cross country over-snow use is already permissable...

  7. 75 FR 66718 - Helena National Forest; Montana; Blackfoot Travel Plan EIS

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-29

    ... the existing motorized public access routes and prohibitions within the Blackfoot travel planning area... access routes and areas would be designated on a Motor Vehicle Use Map (MVUM). Upon publishing the MVUM...: Comments concerning the scope of the analysis must be received by November 29, 2010. The draft...

  8. Fragmentation of daily rhythms associates with obesity and cardiorespiratory fitness in adolescents: The HELENA study.

    PubMed

    Garaulet, Marta; Martinez-Nicolas, Antonio; Ruiz, Jonatan R; Konstabel, Kenn; Labayen, Idoia; González-Gross, Marcela; Marcos, Ascensión; Molnar, Dénes; Widhalm, Kurt; Casajús, Jose Antonio; De Henauw, Stefaan; Kafatos, Anthony; Breidenassel, Christina; Sjöström, Michael; Castillo, Manuel J; Moreno, Luis A; Madrid, Juan A; Ortega, Francisco B

    2016-11-05

    Chronobiology studies periodic changes in living organisms and it has been proposed as a promising approach to investigate obesity. We analyze the association of the characteristics of the rest-activity rhythms with obesity, cardiorespiratory fitness and metabolic risk in adolescents from nine European countries. 1044 adolescents (12.5-17.5 y) were studied. Circadian health was evaluated by actigraphy with accelerometers (Actigraph GT1M). Characteristics of the daytime activity such as fragmentation (intradaily variability), estimated acrophase, and 10 h mean daytime activity index were obtained. Body composition was assessed using Bioelectrical-Impedance-Analysis, skinfold thickness, air-displacement-plethysmography and Dual-energy-X-ray-Absorptiometry. Cardiorespiratory fitness (VO2max) and metabolic risk were studied. Highly fragmented activity rhythms were associated with obesity and central adiposity (P < 0.05). Obese adolescents had ∼3 times higher odds of having a high fragmentation of daytime activity compared to normal weight adolescents OR (95% CI) = 2.8 (1.170, 6.443). A highly fragmented rhythm was also related to lower cardiorespiratory fitness and higher metabolic risk (P < 0.05) so those adolescents classified as low fitness showed a significantly higher fragmentation of daytime activity than those included in the high fitness group (P < 0.0001). Other characteristics of the rhythms such as smaller 10 h daytime mean activity index and delayed estimated acrophase were also related to obesity and metabolic risk (P < 0.05). Our results indicate that the daily organization of the rest-activity cycle is more fragmented in obese and less fit adolescents and correlates with higher metabolic risk. This fact reinforces our hypothesis that disturbances in daily rhythms can be considered as sensitive markers of poorer adolescent's health. Copyright © 2016 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.

  9. Looking through the Lenses of Science Literacy and Cultural Diversity: Learning from Helena's Mistake

    ERIC Educational Resources Information Center

    Chinn, Pauline W. U.

    2012-01-01

    Maria Andree focuses on an immigrant student whose error in a laboratory activity leads to a novel, colorful outcome that she excitedly shares with peers. After engaging in class activities for a few weeks she returns to her earlier dislike of science, saying: "I hate science, particularly Chemistry." The classroom activity system…

  10. Evaluation of iron status in European adolescents through biochemical iron indicators: the HELENA Study

    PubMed Central

    Ferrari, M; Mistura, L; Patterson, E; Sjöström, M; Díaz, L E; Stehle, P; Gonzalez-Gross, M; Kersting, M; Widhalm, K; Molnár, D; Gottrand, F; De Henauw, S; Manios, Y; Kafatos, A; Moreno, L A; Leclercq, C

    2011-01-01

    Background/Objectives: To assess the iron status among European adolescents through selected biochemical parameters in a cross-sectional study performed in 10 European cities. Subjects/Methods: Iron status was defined utilising biochemical indicators. Iron depletion was defined as low serum ferritin (SF<15 μg/l). Iron deficiency (ID) was defined as high-soluble transferrin receptor (sTfR>8.5 mg/l) plus iron depletion. Iron deficiency anaemia (IDA) was defined as ID with haemoglobin (Hb) below the WHO cutoff for age and sex: 12.0 g/dl for girls and for boys aged 12.5–14.99 years and 13.0 g/dl for boys aged ⩾15 years. Enzyme linked immunosorbent assay was used as analytical method for SF, sTfR and C-reactive protein (CRP). Subjects with indication of inflammation (CRP >5 mg/l) were excluded from the analyses. A total of 940 adolescents aged 12.5–17.49 years (438 boys and 502 girls) were involved. Results: The percentage of iron depletion was 17.6%, significantly higher in girls (21.0%) compared with boys (13.8%). The overall percentage of ID and IDA was 4.7 and 1.3%, respectively, with no significant differences between boys and girls. A correlation was observed between log (SF) and Hb (r=0.36, P<0.01), and between log (sTfR) and mean corpuscular haemoglobin (r=−0.30, P<0.01). Iron body stores were estimated on the basis of log (sTfR/SF). A higher percentage of negative values of body iron was recorded in girls (16.5%) with respect to boys (8.3%), and body iron values tended to increase with age in boys, whereas the values remained stable in girls. Conclusions: To ensure adequate iron stores, specific attention should be given to girls at European level to ensure that their dietary intake of iron is adequate. PMID:21245877

  11. A Q-GERT Analysis of the Effect of Improved Automatic Testing on F-16 Aircraft Availability.

    DTIC Science & Technology

    1983-09-01

    September 1932. ADA 12%000 guerra, Joel A., Lesko, Andrew J., & Periera, Jose . OpratinE and supoort cost model for avionics automatic tst eauipment...1981. perr ., Corporation. Automatic test equipment. Final report No. RL-R-80-3, U. S. Army; Missile Command, Redstoie Aroenal AL, February 1980. 17 84

  12. Nutritional and pubertal status influences accuracy of self-reported weight and height in adolescents: the HELENA Study.

    PubMed

    Béghin, Laurent; Huybrechts, Inge; Ortega, Franscico B; Coopman, Stéphanie; Manios, Yannis; Wijnhoven, Trudy M A; Duhamel, Alain; Ciarapica, Donatella; Gilbert, Chantal C; Kafatos, Anthony; Widhalm, Kurt; Molnar, Denes; Moreno, Luis A; Gottrand, Frédéric

    2013-01-01

    The aim of this study was to assess factors that have an effect on the accuracy of self-reported weight and height in adolescents. Weight and height of 3,865 European adolescents aged 12.5 to 17.5 years were self-reported via specific questionnaire. Then real weight and height were measured using accurate equipment and standardized protocols. Differences (D) between self-reported and measured weight and height were calculated, and factors that could have influenced the accuracy of self-reported weight and height were assessed. Data were analyzed using ANOVA, Student's t test and multivariate regression. Adolescents underestimated their weight (D = -0.81 kg; n = 2,968) and overestimated their height (D = +0.74 cm; n = 3,308). Obese girls underestimated their weight (D = -4.70 kg) and overestimated their height (D = +0.22 cm) to a greater extent (p < 0.05) than obese boys (D = -3.13 kg and +0.14 cm for weight and height, respectively). Underestimation of weight (D = -1.25 kg) and overestimation of height (D = +0.15 cm) were only significant for girls who had finished puberty (Tanner stage 5). Socioeconomic status, nutritional knowledge, physical fitness, physical activity level, food choice and preference, and healthy eating behaviour had no significant influence on the accuracy of self-reported weight and height. Our data confirms that self-reports of weight and height made by adolescents are inaccurate and demonstrate that inaccuracy is strongly influenced by nutritional status, pubertal status and gender. Copyright © 2013 S. Karger AG, Basel.

  13. Association of objectively assessed physical activity with total and central body fat in Spanish adolescents; the HELENA Study.

    PubMed

    Moliner-Urdiales, D; Ruiz, J R; Ortega, F B; Rey-Lopez, J P; Vicente-Rodriguez, G; España-Romero, V; Munguía-Izquierdo, D; Castillo, M J; Sjöström, M; Moreno, L A

    2009-10-01

    To examine the association of objectively assessed physical activity (PA) with markers of total and central body fat in adolescents, and to determine whether meeting the current PA recommendations (> or = 60 min day(-1) of at least moderate intensity PA) is associated with reduced levels of total and central body fat. A total of 365 Spanish adolescents aged 12.5-17.5 years participated in this cross-sectional study. PA was assessed by accelerometry and expressed as average PA (counts per minute), and min day(-1) of light, moderate, moderate to vigorous (MVPA) and vigorous PA. MVPA was dichotomized into < 60 min day(-1) and > or = 60. Total body fat was measured by DXA, BodPod and the sum of six skinfolds. Central body fat was measured by DXA at three regions (R1, R2 and R3), and waist circumference. All markers of central body fat were negatively associated with vigorous PA (P < 0.01) after controlling for sex, age and pubertal status. Abdominal adiposity measured at R1, R2 and R3 was also negatively associated with MVPA (P < or = 0.001), and with average PA (P < 0.01). All markers of total body fat were negatively associated with vigorous PA (P < 0.01), MVPA (P < 0.01) and average PA (P < 0.05). Adolescents engaged on at least 60 min day(-1) MVPA presented lower levels of total (P < 0.05) and central body fat (P < or = 0.01). The results suggest that vigorous PA may have a greater effect on preventing obesity in adolescents than does PA of lower intensity, whereas both average PA and at least moderate PA may have an impact on total and central body fat in youth.

  14. Physical activity attenuates the negative effect of low birth weight on leptin levels in European adolescents; the HELENA study.

    PubMed

    Labayen, I; Ortega, F B; Moreno, L A; Gonzalez-Gross, M; Jimenez-Pavon, D; Martínez-Gómez, D; Breidenassel, C; Marcos, A; Molnar, D; Manios, Y; Plada, M; Kafatos, A; De Henauw, S; Mauro, B; Zaccaria, M; Widhalm, K; Gottrand, F; Castillo, M J; Sjöström, M; Ruiz, J R

    2013-04-01

    We examined whether physical activity (PA) influences the association between birth weight and serum leptin in adolescents. The study comprised a total of 538 adolescents (315 girls), aged 12.5-17.49 years, born at term (≥ 37 weeks of gestation). We measured serum leptin levels and time engaged in moderate-vigorous PA (MVPA) by accelerometry. There was an interaction effect between birth weight and meeting the PA recommendations (60 min/day MVPA) on leptin levels in girls (P = 0.023) but not in boys (P = 0.809). Birth weight was negatively associated with leptin levels in girls not meeting the PA recommendations (i.e. more than 60 min/day of MVPA) (β = -0.096, P = 0.009), whereas no significant association was observed in those meeting the PA recommendations (β = -0.061, P = 0.433). In conclusion, meeting the PA recommendations may attenuate the negative effect of low birth weight on serum leptin levels in European female adolescents. Copyright © 2012 Elsevier B.V. All rights reserved.

  15. Diet quality and attention capacity in European adolescents: the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study.

    PubMed

    Henriksson, Pontus; Cuenca-García, Magdalena; Labayen, Idoia; Esteban-Cornejo, Irene; Henriksson, Hanna; Kersting, Mathilde; Vanhelst, Jeremy; Widhalm, Kurt; Gottrand, Frederic; Moreno, Luis A; Ortega, Francisco B

    2017-06-01

    Adolescence represents an important period for the development of executive functions, which are a set of important cognitive processes including attentional control. However, very little is known regarding the associations of nutrition with components of executive functions in adolescence. Thus, the aim of this study was to investigate associations of dietary patterns and macronutrient composition with attention capacity in European adolescents. This cross-sectional study included 384 (165 boys and 219 girls) adolescents, aged 12·5-17·5 years, from five European countries in the Healthy Lifestyle in Europe by Nutrition in Adolescence study. Attention capacity was examined using the d2 Test of Attention. Dietary intake was assessed through two non-consecutive 24 h recalls using a computer-based self-administered tool. Three dietary patterns (diet quality index, ideal diet score and Mediterranean diet score) and macronutrient/fibre intakes were calculated. Linear regression analysis was conducted adjusting for age, sex, BMI, maternal education, family affluence scale, study centre and energy intake (only for Mediterranean diet score). In these adjusted regression analyses, higher diet quality index for adolescents and ideal diet score were associated with a higher attention capacity (standardised β=0·16, P=0·002 and β=0·15, P=0·005, respectively). Conversely, Mediterranean diet score or macronutrient/fibre intake were not associated with attention capacity (P>0·05). Our results suggest that healthier dietary patterns, as indicated by higher diet quality index and ideal diet score, were associated with attention capacity in adolescence. Intervention studies investigating a causal relationship between diet quality and attention are warranted.

  16. Association of physical activity with muscular strength and fat-free mass in adolescents: the HELENA study.

    PubMed

    Moliner-Urdiales, Diego; Ortega, Francisco B; Vicente-Rodriguez, Germán; Rey-Lopez, Juan P; Gracia-Marco, Luis; Widhalm, Kurt; Sjöström, Michael; Moreno, Luis A; Castillo, Manuel J; Ruiz, Jonatan R

    2010-08-01

    The objective of this study is to analyse the association of objectively assessed physical activity (PA) with muscular strength and fat-free mass in adolescents, and to determine whether meeting the current PA recommendations is associated with higher levels of muscular strength and fat-free mass. The present cross-sectional study comprised 363 Spanish adolescents (180 females) aged 12.5-17.5 years. PA was assessed by accelerometry and expressed as average PA (counts/min), and min/day of inactive, light, moderate, vigorous and moderate to vigorous PA (MVPA). MVPA was dichotomized into < 60 min/day and > or = 60. Upper body muscular strength was measured with the handgrip strength test, and lower body muscular strength was measured with the standing broad jump, squat jump, counter movement jump and Abalakov tests. Fat-free mass was measured by DXA. We observed positive associations between vigorous PA and all the lower body muscular strength tests except for the counter movement jump in males. PA was not associated with fat-free mass in both males and females. Male adolescents engaged in at least 60 min/day MVPA performed better in the standing broad jump test. In conclusion, the findings of the present study suggest that only vigorous PA is associated with muscular strength, particularly lower-body muscular strength in male adolescents.

  17. Vitamins and iron blood biomarkers are associated with blood pressure levels in European adolescents. The HELENA study.

    PubMed

    de Moraes, Augusto César Ferreira; Gracia-Marco, Luis; Iglesia, Iris; González-Gross, Marcela; Breidenassel, Christina; Ferrari, Marika; Molnar, Dénes; Gómez-Martínez, Sonia; Androutsos, Odysseas; Kafatos, Anthony; Cuenca-García, Magdalena; Sjöström, Michael; Gottrand, Frederic; Widhalm, Kurt; Carvalho, Heráclito Barbosa; Moreno, Luis A

    2014-01-01

    Previous research showed that low concentration of biomarkers in the blood during adolescence (i.e., iron status; retinol; and vitamins B6, B12, C, and D) may be involved in the early stages of development of many chronic diseases, such as hypertension. The aim was to evaluate if iron biomarkers and vitamins in the blood are associated with blood pressure in European adolescents. Participants from the Healthy Lifestyle in Europe by Nutrition in Adolescence cross-sectional study (N = 1089; 12.5-17.5 y; 580 girls) were selected by complex sampling. Multilevel linear regression models examined the associations between iron biomarkers and vitamins in the blood and blood pressure; the analyses were stratified by sex and adjusted for contextual and individual potential confounders. A positive association was found in girls between RBC folate concentration and systolic blood pressure (SBP) (β = 3.19; 95% confidence interval [CI], 0.61-5.77), although no association between the vitamin serum biomarkers concentrations and diastolic blood pressure (DBP) was found. In boys, retinol was positively associated with DBP (β = 3.84; 95% CI, 0.51-7.17) and vitamin B6 was positively associated with SBP (β = 3.82; 95% CI, 1.46-6.18). In contrast, holotranscobalamin was inversely associated with SBP (β = -3.74; 95% CI, -7.28 to -0.21). Levels of RBC folate and vitamin B6 in blood may affect BP in adolescents. In this context, programs aimed at avoiding high BP levels should promote healthy eating behavior by focusing on the promotion of vegetable proteins and foods rich in vitamin B12 (i.e., white meat and eggs), which may help to achieve BP blood control in adolescents. Copyright © 2014 Elsevier Inc. All rights reserved.

  18. Correlates of dietary energy misreporting among European adolescents: the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study.

    PubMed

    Bel-Serrat, Silvia; Julián-Almárcegui, Cristina; González-Gross, Marcela; Mouratidou, Theodora; Börnhorst, Claudia; Grammatikaki, Evangelia; Kersting, Mathilde; Cuenca-García, Magdalena; Gottrand, Frederic; Molnár, Dénes; Hallström, Lena; Dallongeville, Jean; Plada, Maria; Roccaldo, Romana; Widhalm, Kurt; Moreno, Luis A; Manios, Yannis; De Henauw, Stefaan; Leclercq, Catherine; Vandevijvere, Stefanie; Lioret, Sandrine; Gutin, Bernard; Huybrechts, Inge

    2016-04-01

    This study examined the correlates of dietary energy under-reporting (UR) and over-reporting (OV) in European adolescents. Two self-administered computerised 24-h dietary recalls and physical activity data using accelerometry were collected from 1512 adolescents aged 12·5-17·5 years from eight European countries. Objective measurements of height and weight were obtained. BMI was categorised according to Cole/International Obesity Task Force (IOTF) cut-off points. Diet-related attitudes were assessed via self-administered questionnaires. Reported energy intake (EI) was compared with predicted total energy expenditure to identify UR and OV using individual physical activity objective measures. Associations between misreporting and covariates were examined by multilevel logistic regression analyses. Among all, 33·3 % of the adolescents were UR and 15·6 % were OV when considering mean EI. Overweight (OR 3·25; 95 % CI 2·01, 5·27) and obese (OR 4·31; 95 % CI 1·92, 9·65) adolescents had higher odds for UR, whereas underweight individuals were more likely to over-report (OR 1·67; 95 % CI 1·01, 2·76). Being content with their own figures (OR 0·61; 95 % CI 0·41, 0·89) decreased the odds for UR, whereas frequently skipping breakfast (OR 2·14; 95 % CI 1·53, 2·99) was linked with higher odds for UR. Those being worried about gaining weight (OR 0·55; 95 % CI 0·33, 0·92) were less likely to OV. Weight status and psychosocial weight-related factors were found to be the major correlates of misreporting. Misreporting may reflect socially desirable answers and low ability to report own dietary intakes, but also may reflect real under-eating in an attempt to lose weight or real over-eating to reflect higher intakes due to growth spurts. Factors influencing misreporting should be identified in youths to clarify or better understand diet-disease associations.

  19. Prime Contract Awards by State or Country, Place and Contractor. Part 3 (Lodi, California - Saint Helena, California), FY1991

    DTIC Science & Technology

    1991-01-01

    4-4m) in-4 .- 41- I < 4 ofI I I I I I 11-tI logo 00 on 0) wl ~ (jl> K 0.-4 -4 -4 -40)n0) -4NN) 0--44C4--M-4NNN)0)0)0)’ .V CU 0 xI-x a m1 4 m-(((NN...M0-40 -4-422 -422L4" I-q --42 *l -42 -42 2 -4 -4 -4 222 KL I 4000mo 40 O Coc 0 o i0 (0 0((CC to 0D4’( t c c U-4 KfC I 000m K1 0 C o0 (’)4t 41)4 r-- 04...LA1 It 0 ICD 110 AS E(0(0 (D 0(00 D((((0(D0 Cc ooC o D( DW0oo OOO oo(0(0(0 00000((((( 00000 (((((((0(0(0 0(0(0( V/) KfC 0. ID of0 KW 0 00 00 D0 0 000 0

  20. 10. PHOTOGRAPHIC COPY OF PHOTOGRAPH (1938) (original print in possession ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    10. PHOTOGRAPHIC COPY OF PHOTOGRAPH (1938) (original print in possession of Helena Branch of Federal Reserve Bank of Minneapolis, Helena, Montana) VIEW OF FIRST FLOOR TELLERS WINDOWS - Federal Reserve Bank of Minneapolis, Helena Branch, 400 North Park Avenue, Helena, Lewis and Clark County, MT

  1. A Q-GERT Network Simulation Model for Examining Pipeline Time in the Navy’s J-52 Intermediate Level Jet Engine Repair Cycle.

    DTIC Science & Technology

    1984-09-01

    pipeline. Recent data , however, indicates. that the actual TAT for the J-52 engine is almost four times the standard specified by the directives. One...established by the Engine Analytical Maintenance *’- Program (EAMP), which was implemented in 1978 (8). The EAMP is primarily concerned with the...the standard times established for the J-52-P-8 and the J-52-P-408. These two models represent over 75% of the J-52 engines in service. The data in

  2. Vacancy Transport and Interactions on Metal Surfaces

    DTIC Science & Technology

    2014-03-06

    AFRL-OSR-VA-TR-2013-0317 VACANCY TRANSPORT AND INTERACTIONS ON METAL SURFACES Gert Ehrlich UNIVERSITY OF ILLINOIS CHAMPAIGN Final Report 03/06/2014...30, 2012 Gert Ehrlich , PI Abstract This proposal is a study of vacancy transport and vacancy interaction on metal surfaces. Adatom self...Trembułowicz, Gert Ehrlich , Grażyna Antczak,Surface diffusion of gold on quasihexagonal-reconstructed Au(100) ,Physical Review B 84 (2011) 245445-1

  3. Influence of sex, age, pubertal maturation and body mass index on circulating white blood cell counts in healthy European adolescents—the HELENA study.

    PubMed

    Pérez-de-Heredia, Fátima; Gómez-Martínez, Sonia; Díaz, Ligia-Esperanza; Veses, Ana M; Nova, Esther; Wärnberg, Julia; Huybrechts, Inge; Vyncke, Krishna; Androutsos, Odysseas; Ferrari, Marika; Palacios, Gonzalo; Wastlund, Acki; Kovács, Éva; Gottrand, Frédéric; González-Gross, Marcela; Castillo, Manuel J; Sjöstrom, Michael; Manios, Yannis; Kafatos, Anthony; Molnár, Denes; Widhalm, Kurt; Moreno, Luis A; Marcos, Ascensión

    2015-08-01

    Percentiles 10th, 25th, 50th, 75th and 90th are presented for circulating white blood cells (WBC), neutrophils, lymphocytes, monocytes, eosinophils and basophils in healthy European adolescents (12.5-17.5 years, n = 405, 48.9% boys), considering age, sex, puberty and body mass index (BMI). CD3(+) (mature T cells), CD4(+) (T helper), CD8(+) (T cytotoxic), CD16(+)56(+) (natural killer), CD19(+) (B cells), CD3(+)CD45RA(+), CD4(+)CD45RA(+), CD8(+)CD45RA(+) (naïve), CD3(+)CD45RO(+), CD4(+)CD45RO(+) and CD8(+)CD45RO(+) (memory) lymphocytes were also analysed by immunophenotyping. Girls presented higher WBC, neutrophil, CD3(+)CD45RO(+) and CD4(+)CD45RO(+) cell counts and CD3(+)/CD19(+) ratio, and lower CD3(+)CD45RA(+) and CD4(+)CD45RA(+) counts than boys. Age was associated with higher neutrophil counts and CD3(+)/CD19(+), and lower CD19(+) counts; in boys, with lower CD3(+)CD45RA(+), CD4(+)CD45RA(+) and CD8(+)CD45RA(+) counts as well; in girls, with higher WBC, CD3(+)CD45RO(+) and CD4(+)CD45RO(+) counts. Pubertal maturation in boys was associated with lower WBC and lymphocyte counts; in girls, with higher basophil, CD3(+)CD45RO(+) and CD4(+)CD45RO(+) values. BMI was associated with higher WBC counts; in boys, also with higher lymphocyte counts; in girls, with higher neutrophil, CD4(+), CD3(+)CD45RO(+) and CD4(+)CD45RO(+) counts. Our study provides normative values for circulating immune cells in adolescents, highlighting the importance of considering sex, age, pubertal maturation and BMI when establishing reference ranges for WBC in paediatric populations.

  4. Dietary fatty acid intake, its food sources and determinants in European adolescents: the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study.

    PubMed

    Vyncke, Krishna E; Libuda, Lars; De Vriendt, Tineke; Moreno, Luis A; Van Winckel, Myriam; Manios, Yannis; Gottrand, Frederic; Molnar, Denes; Vanaelst, Barbara; Sjöström, Michael; González-Gross, Marcela; Censi, Laura; Widhalm, Kurt; Michels, Nathalie; Gilbert, Chantal C; Xatzis, Christos; Cuenca García, Magdalena; de Heredia, Fátima Pérez; De Henauw, Stefaan; Huybrechts, Inge

    2012-12-28

    Dietary fatty acids (FA) play a role in several (patho)physiological processes at any age, and different FA have different effects on lipid status and health outcome. The present study aims to describe the FA intake and its main food sources in a population of healthy European adolescents and to assess the variation in intake as a function of non-dietary factors. FA intake was assessed with 24 h recall interviews in 1804 adolescents aged 12·5-17·5 years. Usual intakes were calculated using the multiple source method. Multilevel analyses, adjusting for study centre, were used to investigate the influence of non-dietary factors. The mean total fat intake was 33·3 (sd 1·2) % of total energy intake (%E). The mean SFA intake was 13·8 (sd 1·2) %E, with 99·8 % of the population exceeding the recommendations. SFA was mainly delivered by meat and cake, pies and biscuits. In most adolescents, the PUFA intake was too low, and 35·5 % of the population did not achieve the minimum recommended intake for α-linolenic acid (ALA). The main determinants of FA intake in the present study population were age and sex, as well as physical activity in the male subgroup. No contributions of body composition, socio-economic status or sexual maturation to the variance in FA intake were observed. In conclusion, the most important public health concerns regarding FA intake in this adolescent population were the low intake of ALA and the high intake of SFA, mainly seen in the younger-aged boys. In this group the major contributor to SFA was meat.

  5. Attenuation of the effect of the FTO rs9939609 polymorphism on total and central body fat by physical activity in adolescents: the HELENA study.

    PubMed

    Ruiz, Jonatan R; Labayen, Idoia; Ortega, Francisco B; Legry, Vanessa; Moreno, Luis A; Dallongeville, Jean; Martínez-Gómez, David; Bokor, Szilvia; Manios, Yannis; Ciarapica, Donatella; Gottrand, Frederic; De Henauw, Stefaan; Molnár, Denes; Sjöström, Michael; Meirhaeghe, Aline

    2010-04-01

    To examine whether physical activity attenuates the effect of the FTO rs9939609 polymorphism on body fat estimates in adolescents. Cross-sectional study. Athens, Greece; Dortmund, Germany; Ghent, Belgium; Heraklion, Greece; Lille, France; Pécs, Hungary; Rome, Italy; Stockholm, Sweden; Vienna, Austria; and Zaragoza, Spain, from October 2006 to December 2007. Adolescents from the Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study (n = 752). Physical activity. The FTO rs9939609 polymorphism was genotyped. Physical activity was assessed by accelerometry. We measured weight, height, waist circumference, and triceps and subscapular skinfolds; body mass index (BMI [calculated as weight in kilograms divided by height in meters squared]) and body fat percentage were calculated. The A allele of the FTO polymorphism was significantly associated with higher BMI (+0.42 per risk allele), higher body fat percentage (+1.03% per risk allele), and higher waist circumference (+0.85 cm per risk allele). We detected significant or borderline gene x physical activity interactions for the studied body fat estimates (for interaction, P = .02, .06, and .10 for BMI, body fat percentage, and waist circumference, respectively). Indeed, the effect of the FTO rs9939609 polymorphism on these body fat parameters was much lower in adolescents who met the daily physical activity recommendations (ie, >/=60 min/d of moderate to vigorous physical activity) compared with those who did not: +0.17 vs +0.65 per risk allele in BMI, respectively; +0.40% vs +1.70% per risk allele in body fat percentage, respectively; and +0.60 vs +1.15 cm per risk allele in waist circumference, respectively. Adolescents meeting the daily physical activity recommendations may overcome the effect of the FTO rs9939609 polymorphism on obesity-related traits.

  6. Short sleep duration is associated with increased obesity markers in European adolescents: effect of physical activity and dietary habits. The HELENA study.

    PubMed

    Garaulet, M; Ortega, F B; Ruiz, J R; Rey-López, J P; Béghin, L; Manios, Y; Cuenca-García, M; Plada, M; Diethelm, K; Kafatos, A; Molnár, D; Al-Tahan, J; Moreno, L A

    2011-10-01

    Adequate sleep is a critical factor for adolescent's health and health-related behaviors. (a) to describe sleep duration in European adolescents from nine countries, (b) to assess the association of short sleep duration with excess adiposity and (c) to elucidate if physical activity (PA), sedentary behaviors and/or inadequate food habits underlie this association. A sample of 3311 adolescents (1748 girls) aged 12.5-17.49 years from 10 European cities in Austria, Belgium, France, Germany, Greece, Hungary, Italy, Spain and Sweden was assessed in the Healthy Lifestyle in Europe by Nutrition in Adolescence Study between 2006 and 2008. We measured anthropometric data, sleep duration, PA (accelerometers and questionnaire), television watching and food habits (Food Frequency Questionnaire). Average duration of daily sleep was 8 h. Shorter sleepers showed higher values of BMI, body fat, waist and hip circumferences and fat mass index (P<0.05), particularly in females. Adolescents who slept <8 h per day were more sedentary, as assessed by accelerometry, and spent more time watching TV (P<0.05). The proportion of adolescents who eat adequate amounts of fruits, vegetables and fish was lower in shorter sleepers than in adolescents who slept ≥8 h per day, and so was the probability of having adequate food habits (P<0.05). Correlation analysis indicated that short sleep is associated with higher obesity parameters. In European adolescents, short sleep duration is associated with higher adiposity markers, particularly in female adolescents. This association seems to be related to both sides of the energy balance equation due to a combination of increased food intake and more sedentary habits.

  7. Cardiorespiratory fitness in males, and upper limbs muscular strength in females, are positively related with 25-hydroxyvitamin D plasma concentrations in European adolescents: the HELENA study.

    PubMed

    Valtueña, J; Gracia-Marco, L; Huybrechts, I; Breidenassel, C; Ferrari, M; Gottrand, F; Dallongeville, J; Sioen, I; Gutierrez, A; Kersting, M; Kafatos, A; Manios, Y; Widhalm, K; Moreno, L A; González-Gross, M

    2013-09-01

    High prevalence of vitamin D insufficiency (<75 nmol/l) has been previously reported in European adolescents. Vitamin D deficiency has been related to physical fitness and adiposity but it is not clearly known whether this relationship applies to growing children and adolescents. To determine how body composition and physical fitness are related to 25-hydroxyvitamin D [25(OH)D] concentrations in European adolescents. The HEalthy Lifestyle in Europe by Nutrition in Adolescence-CSS study was a multi-centre cross-sectional study. Plasma 25(OH)D, body composition and physical fitness measures were obtained in 1006 European adolescents (470 males) aged 12.5-17.5 years. Stepwise regression and ANCOVA were performed by gender using 25(OH)D as dependent variable, with body composition, physical fitness as independent variables controlling for age, seasonality and latitude. For males, maximum oxygen consumption (VO2max) (B = 0.189) and body mass index (BMI) (B = -0.124) were independently associated with 25(OH)D concentrations (both P < 0.05). For females, handgrip strength (B = 0.168; P < 0.01) was independently associated with 25(OH)D concentrations. Those adolescents at lower BMI and high fitness score presented significant higher 25(OH)D concentrations than those at lower fitness score in the other BMI groups (P < 0.05). Cardiorespiratory fitness and upper limbs muscular strength are positively associated with 25(OH)D concentrations in male and female adolescents, respectively. Adiposity in males and low fat free mass in females are related to hypovitaminosis D. The interaction between fitness and BMI has a positive effect on 25(OH)D concentrations. Therapeutic interventions to correct the high rates of vitamin D deficiency in adolescents should consider physical fitness.

  8. Testing the Gräfenberg Ring in Interwar Britain: Norman Haire, Helena Wright, and the Debate over Statistical Evidence, Side Effects, and Intra-uterine Contraception.

    PubMed

    Rusterholz, Caroline

    2017-10-01

    This paper examines the introduction to Britain of the Gräfenberg ring, an early version of what later became known as an intrauterine device (IUD). The struggle during the interwar years to establish the value of the ring provides an opportunity for a case study of the evaluation and acceptance of a new medical device. With the professionalization of the birth control movement and the expansion of birth control clinics in interwar Britain, efforts to develop better scientific means for contraception grew rapidly. At the end of the nineteenth century, methods for controlling fertility ranged from coitus interruptus and abstinence, to diverse substances ingested or placed into the vagina, to barrier methods. The first decades of the twentieth century brought early work on chemical contraceptives as well as a number of new intrauterine devices, among them the Gräfenberg ring. Developing a cheap, reliable, and widely acceptable contraceptive became a pressing goal for activists in the voluntary birth control movement in Britain between the wars. Yet, tensions developed over the best form of contraception to prescribe. By situating the Gräfenberg ring within the context of the debates and competition among British medical and birth control professionals, this paper reveals broader issues of power relationships and expertise in the assessment of a new medical technology. © The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  9. Self-reported physical activity in European adolescents: results from the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study.

    PubMed

    De Cocker, Katrien; Ottevaere, Charlene; Sjöström, Michael; Moreno, Luis A; Wärnberg, Julia; Valtueña, Jara; Manios, Yannis; Dietrich, Sabine; Mauro, Beatrice; Artero, Enrique G; Molnár, Dénes; Hagströmer, Maria; Ruiz, Jonathan R; Sarri, Katerina; Kafatos, Anthony; Gottrand, Frédéric; De Henauw, Stefaan; Maes, Lea; De Bourdeaudhuij, Ilse

    2011-02-01

    To describe self-reported physical activity (PA) patterns in the various domains (school, home, transport, leisure time) and intensity categories (walking, moderate PA, vigorous PA) in European adolescents. Furthermore, self-reported PA patterns were evaluated in relation to gender, age category, weight status category and socio-economic status (SES). Cross-sectional study. Ten European cities. In total, 3051 adolescents (47·6 % boys, mean age 14·8 (sd 1·2) years) completed an adolescent-adapted version of the validated International Physical Activity Questionnaire. The total sample reported most PA during leisure time (485 min/week) and least PA at home (140 min/week). Boys reported significantly more school-based PA (P < 0·001), leisure-time PA (P = 0·003), vigorous PA (P < 0·001) and total PA (P = 0·002) than girls, while girls reported more home-based PA (P < 0·001) and walking (P = 0·002) than boys. Self-reported PA at school (P < 0·001), moderate PA (P < 0·001), vigorous PA (P < 0·001) and total PA (P < 0·001) were significantly higher in younger age groups than in older groups. Groups based on weight status differed significantly only in leisure-time PA (P = 0·004) and total PA (P = 0·003), while groups based on SES differed in all PA domains and intensities except transport-related PA and total PA. The total sample of adolescents reported different scores for the different PA domains and intensity categories. Furthermore, patterns were different according the adolescents' gender, age, weight status and SES.

  10. Association between the FTO rs9939609 polymorphism and leptin in European adolescents: a possible link with energy balance control. The HELENA study.

    PubMed

    Labayen, I; Ruiz, J R; Ortega, F B; Dallongeville, J; Dalongeville, J; Jiménez-Pavón, D; Castillo, M J; De Henauw, S; González-Gross, M; Bueno, G; Molnar, D; Kafatos, A; Díaz, L E; Meirhaeghe, A; Moreno, L A

    2011-01-01

    We examined the association between the FTO rs9939609 polymorphism and serum leptin concentrations in adolescents. The FTO rs9939609 polymorphism was genotyped, and fasting serum leptin and insulin were measured in 655 European adolescents (365 females) aged 14.6 ± 1.2 years. We measured weight, height, triceps and subscapular skinfolds and waist circumference, and body fat percentage was calculated. Sex, pubertal status, center, physical activity (accelerometry), total or central adiposity and serum insulin concentrations were entered as confounders in the analyses. The minor A allele of the FTO rs9939609 was significantly associated with higher serum leptin concentrations independently of potential confounders including adiposity (+3.9 ng ml(-1) per risk allele (95% confidence interval: 2.0, 5.9); adjusted P < 0.001). These findings could link the FTO gene with serum leptin and consequently with the control of energy balance. Leptin could be a possible intermediary contributing to the association between the FTO rs9939609 polymorphism and adiposity.

  11. Dietary fat intake modifies the influence of the FTO rs9939609 polymorphism on adiposity in adolescents: The HELENA cross-sectional study.

    PubMed

    Labayen, I; Ruiz, J R; Huybrechts, I; Ortega, F B; Arenaza, L; González-Gross, M; Widhalm, K; Molnar, D; Manios, Y; DeHenauw, S; Meirhaeghe, A; Moreno, L A

    2016-10-01

    The fat mass and obesity associated gene (FTO) has been associated with obesity and dietary intake. The aims were: (i) To assess whether energy and macronutrient intakes were different across the FTOrs9939609 genotypes in adolescents, and (ii) to explore whether dietary fat intake modified the association of the rs9939609 polymorphism with adiposity. The FTOrs9939609 polymorphism was genotyped in 652 adolescents (53% females, 14.8 ± 1.2 years, TT = 246, TA = 296, AA = 110). Energy and macronutrient intake were assessed by two non-consecutive 24 h-recalls. Weight, height, waist circumference and skinfold thicknesses were measured and body fat percent was calculated. Energy and macronutrient intake were similar across the FTOrs9939609 genotypes (P > 0.2). There were significant interactions between the FTO polymorphism and fat intake on adiposity estimates (P < 0.05). In adolescents whose fat intake was below 30% (N = 203), the A allele of rs9939609 was not associated with adiposity indices. In contrast, in adolescents whose fat intake was between 30% and 35% of energy (N = 190), the rs9939609 polymorphism was associated with a 1.9% higher body fat per risk allele (95%CI: 0.39, 3.33; P < 0.05), and in those whose fat intake was higher than 35% (N = 259), it was associated with a 2.8% higher body fat per risk allele (95%CI: 1.27, 4.43; P < 0.001). These findings support the concept that the deleterious effect of the FTOrs9939609 polymorphism on adiposity is exacerbated in adolescents consuming high fat diets. In contrast, the consumption of low fat diets (<30% of energy) may attenuate the genetic predisposition to obesity in risk allele carriers. Copyright © 2016 The Italian Society of Diabetology, the Italian Society for the Study of Atherosclerosis, the Italian Society of Human Nutrition, and the Department of Clinical Medicine and Surgery, Federico II University. Published by Elsevier B.V. All rights reserved.

  12. Foods contributing to vitamin B6, folate, and vitamin B12 intakes and biomarkers status in European adolescents: The HELENA study.

    PubMed

    Iglesia, Iris; Mouratidou, Theodora; González-Gross, Marcela; Huybrechts, Inge; Breidenassel, Christina; Santabárbara, Javier; Díaz, Ligia-Esperanza; Hällström, Lena; De Henauw, Stefaan; Gottrand, Frédéric; Kafatos, Anthony; Widhalm, Kurt; Manios, Yannis; Molnar, Denes; Stehle, Peter; Moreno, Luis A

    2017-06-01

    To examine the association between food groups consumption and vitamin B6, folate and B12 intakes and biomarkers in adolescents. In total 2189 individuals participating in the cross-sectional Healthy Lifestyle in Europe by Nutrition in Adolescence study met the eligibility criteria for analysis of dietary intakes (46 % males) and 632 for biomarker analysis (47 % males). Food intakes were assessed by two non-consecutive 24-h recalls. Biomarkers were measured by chromatography and immunoassay. Food groups which best discriminated participants in the extreme tertiles of the distribution of vitamins were identified by discriminant analyses. Food groups with standardised canonical coefficients higher or equal to 0.3 were selected as valid discriminators of vitamins intake and biomarkers extreme tertiles. Linear mixed model elucidated the association between food groups and vitamins intakes and biomarkers. Vitamin B6 intakes and biomarkers were best discriminated by meat (males and females), margarine and mixed origin lipids only in males and breakfast cereals (females). Breakfast cereals (males), and fruits, margarine and mixed origin lipids, vegetables excluding potatoes, breakfast cereals, and soups/bouillon (females) determined the most folate intakes and biomarkers. Considering vitamin B12 intakes and biomarkers, meat, and white and butter milk (males and females), snacks (males), and dairy products (females) best discriminated individual in the extremes of the distribution. Fewer associations were obtained with mixed model for biomarkers than for vitamins intakes with food groups. Whereas B-vitamin intakes were associated with their food sources, biomarkers did with overall food consumption. Low-nutrient-density foods may compromise adolescents' vitamin status.

  13. Helena, the hidden beauty: Resolving the most common West Eurasian mtDNA control region haplotype by massively parallel sequencing an Italian population sample.

    PubMed

    Bodner, Martin; Iuvaro, Alessandra; Strobl, Christina; Nagl, Simone; Huber, Gabriela; Pelotti, Susi; Pettener, Davide; Luiselli, Donata; Parson, Walther

    2015-03-01

    The analysis of mitochondrial (mt)DNA is a powerful tool in forensic genetics when nuclear markers fail to give results or maternal relatedness is investigated. The mtDNA control region (CR) contains highly condensed variation and is therefore routinely typed. Some samples exhibit an identical haplotype in this restricted range. Thus, they convey only weak evidence in forensic queries and limited phylogenetic information. However, a CR match does not imply that also the mtDNA coding regions are identical or samples belong to the same phylogenetic lineage. This is especially the case for the most frequent West Eurasian CR haplotype 263G 315.1C 16519C, which is observed in various clades within haplogroup H and occurs at a frequency of 3-4% in many European populations. In this study, we investigated the power of massively parallel complete mtGenome sequencing in 29 Italian samples displaying the most common West Eurasian CR haplotype - and found an unexpected high diversity. Twenty-eight different haplotypes falling into 19 described sub-clades of haplogroup H were revealed in the samples with identical CR sequences. This study demonstrates the benefit of complete mtGenome sequencing for forensic applications to enforce maximum discrimination, more comprehensive heteroplasmy detection, as well as highest phylogenetic resolution.

  14. 78 FR 69086 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-18

    ..., Facility ID 189560, BPH- 20130918ADF, From WHITEHALL, MT, To HELENA VALLEY SE., MT; THE MONTANA RADIO COMPANY, LLC, Station KIMO, Facility ID 83110, BPH-20130918ADH, From HELENA VALLEY SE., MT, To TOWNSEND...

  15. 78 FR 9600 - Final Flood Elevation Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-11

    .... Helena Parish, Louisiana, and Incorporated Areas Docket No.: FEMA-B-1204 and B-1221 Joseph Branch Approximately 0.70 mile +189 Unincorporated Areas of upstream of Kendrick St. Helena Parish. Road. Approximately... Approximately 1.14 miles +115 Unincorporated Areas of upstream of the Tickfaw St. Helena Parish. River...

  16. The Academic Impacts of Attending a KIPP Charter School in Arkansas

    ERIC Educational Resources Information Center

    Rose, Caleb P.

    2013-01-01

    KIPP Delta College Preparatory School (KIPP: DCPS), an open-enrollment charter school, opened in 2002 in Helena, Arkansas. Since its opening, KIPP: DCPS students have consistently outperformed their peers in the Helena/West Helena School district, and moreover, recent test scores suggest that white students and minority students are achieving at…

  17. Characterization of Detonation Phenomena Observed in High-Speed Visible Imagery

    DTIC Science & Technology

    2006-03-01

    Ralph A. Anthenien Jr. (Member) date ____________________________________ ________ David W. Gerts, (Member) date...also like to express my gratitude to my committee members, Dr. Ronald Tuttle, Dr. Ralph Anthenien, and Major David Gerts for their selfless...DEMI) 4180 Watson Way Wright Patterson AFB, OH 45433 Sharon Staley , NASIC/DEMI DSN: 787-2962 11. SPONSOR/MONITOR’S REPORT NUMBER(S

  18. Reliability analysis using network simulation

    SciTech Connect

    Not Available

    1984-01-01

    A computer code that uses a dynamic, Monte Carlo modeling approach is Q-GERT (Graphical Evaluation and Review Technique--with Queueing), and the present study has demonstrated the feasibility of using Q-GERT for modeling time-dependent, unconditionally and conditionally linked phenomena that are characterized by arbitrarily selected probability distributions.

  19. The Critical Vulnerability of Technological Dependence: A Culturally Driven Phenomenon

    DTIC Science & Technology

    2014-05-22

    completes-u- s -navy-aircraft- satcom-demonstration-2/ (accessed October 24, 2013). Hofstede , Geert and Gert Jan Hofstede . Cultures and...33Geert Hofstede and Gert Jan Hofstede , Cultures and Organizations: Software of the Mind, (New York: McGraw...Approved for Public Release; Distribution is Unlimited THE CRITICAL VULNERABILITY OF TECHNOLOGICAL DEPENDENCE: A CULTURALLY DRIVEN PHENOMENON A

  20. Ethical theory, "common morality," and professional obligations.

    PubMed

    Alexandra, Andrew; Miller, Seumas

    2009-01-01

    We have two aims in this paper. The first is negative: to demonstrate the problems in Bernard Gert's account of common morality, in particular as it applies to professional morality. The second is positive: to suggest a more satisfactory explanation of the moral basis of professional role morality, albeit one that is broadly consistent with Gert's notion of common morality, but corrects and supplements Gert's theory. The paper is in three sections. In the first, we sketch the main features of Gert's account of common morality in general. In the second, we outline Gert's explanation of the source of professional moral rules and demonstrate its inadequacy. In the third section, we provide an account of our own collectivist needs-based view of the source of the role-moral obligations of many professional roles, including those of health care professionals.

  1. Breast-feeding modulates the influence of the peroxisome proliferator-activated receptor-gamma (PPARG2) Pro12Ala polymorphism on adiposity in adolescents: The Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) cross-sectional study.

    PubMed

    Verier, Caroline; Meirhaeghe, Aline; Bokor, Szilvia; Breidenassel, Christina; Manios, Yannis; Molnár, Dénes; Artero, Enrique G; Nova, Esther; De Henauw, Stefaan; Moreno, Luis A; Amouyel, Philippe; Labayen, Idoia; Bevilacqua, Noemi; Turck, Dominique; Béghin, Laurent; Dallongeville, Jean; Gottrand, Frédéric

    2010-01-01

    The peroxisome proliferator-activated receptor-gamma2 (PPARG2) Pro12Ala polymorphism has been associated with a higher BMI and a lower risk of type 2 diabetes in adulthood. The association between adiposity and PPARG variants can be influenced by environmental factors such as early growth, dietary fat, and (as recently shown) breast-feeding. The objectives of this study were to assess 1) the influence of the PPARG2 Pro12Ala polymorphism on adiposity markers in adolescents and 2) a possible modulating effect of breast-feeding on these associations. Data on breast-feeding duration, BMI, and genotypes for the Pro12Ala polymorphism were available for 945 adolescents (mean age 14.7 years). The breast-feeding duration was obtained from parental records. We measured weight, height, waist circumference, and six skinfold thicknesses. No significant associations between the Pro12Ala polymorphism and any of the above-mentioned anthropometric parameters were found. There were significant interactions between the PPARG2 Pro12Ala polymorphism and breast-feeding with regard to adiposity measurements (all adjusted P < 0.05). Indeed, in children who had not been breast-fed, Ala12 allele carriers had higher adiposity parameters (e.g., Delta BMI +1.88 kg/m(2), adjusted for age, sex, and center, P = 0.007) than Pro12Pro adolescents. In contrast, in breast-fed subjects, there was no significant difference between Ala12 allele carriers and Pro12Pro children in terms of adiposity measurements, whatever the duration of breast-feeding. Breast-feeding appears to counter the deleterious effect of the PPARG2 Pro12Ala polymorphism on anthropometric parameters in adolescents.

  2. Psychosocial determinants and perceived environmental barriers as mediators of the effectiveness of a web-based tailored intervention promoting physical activity in adolescents: the HELENA Activ-O-Meter.

    PubMed

    Cook, Tina Louisa; De Bourdeaudhuij, Ilse; Maes, Lea; Haerens, Leen; Grammatikaki, Evangelia; Widhalm, Kurt; Kwak, Lydia; Plada, Maria; Moreno, Luis Alberto; Tountas, Yannis; Zampelas, Antonis; Manios, Yannis

    2014-05-01

    The aim was to examine if psychosocial determinants (attitudes, self-efficacy, social support from a sports partner) and perceived environmental barriers (PEB) of physical activity (PA) mediated the effect of a 3-month Internet-based intervention on PA in European adolescents. A sample of 536 adolescents (51% boys) aged 12-17 years were randomly assigned to intervention or control condition. Questionnaires were used to assess different PA behaviors, psychosocial determinants and PEB at baseline and at 3-month follow-up. Mediating effects were assessed with the bootstrapping method. PEB regarding neighborhood safety mediated the effect of the intervention on all PA indices. PEB regarding sports facilities availability at neighborhood and PEB regarding sport-related facilities availability at school mediated the effect of the intervention on moderate to vigorous PA (MVPA) and moderate PA (in leisure time and at school, respectively). Social support from a sports partner suppressed the effect of the intervention on vigorous PA and MVPA. No other factor had a mediation effect. All PEB measures appear to mediate PA behaviors of different intensities and in different contexts. Interventions promoting PA in adolescents should also focus on improving the targeted PEB as mediators of engagement in PA to bring the desired effects in actual behaviors.

  3. Folate and vitamin B12 concentrations are associated with plasma DHA and EPA fatty acids in European adolescents: the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study.

    PubMed

    Iglesia, I; Huybrechts, I; González-Gross, M; Mouratidou, T; Santabárbara, J; Chajès, V; González-Gil, E M; Park, J Y; Bel-Serrat, S; Cuenca-García, M; Castillo, M; Kersting, M; Widhalm, K; De Henauw, S; Sjöström, M; Gottrand, F; Molnár, D; Manios, Y; Kafatos, A; Ferrari, M; Stehle, P; Marcos, A; Sánchez-Muniz, F J; Moreno, L A

    2017-01-01

    This study aimed to examine the association between vitamin B6, folate and vitamin B12 biomarkers and plasma fatty acids in European adolescents. A subsample from the Healthy Lifestyle in Europe by Nutrition in Adolescence study with valid data on B-vitamins and fatty acid blood parameters, and all the other covariates used in the analyses such as BMI, Diet Quality Index, education of the mother and physical activity assessed by a questionnaire, was selected resulting in 674 cases (43 % males). B-vitamin biomarkers were measured by chromatography and immunoassay and fatty acids by enzymatic analyses. Linear mixed models elucidated the association between B-vitamins and fatty acid blood parameters (changes in fatty acid profiles according to change in 10 units of vitamin B biomarkers). DHA, EPA) and n-3 fatty acids showed positive associations with B-vitamin biomarkers, mainly with those corresponding to folate and vitamin B12. Contrarily, negative associations were found with n-6:n-3 ratio, trans-fatty acids and oleic:stearic ratio. With total homocysteine (tHcy), all the associations found with these parameters were opposite (for instance, an increase of 10 nmol/l in red blood cell folate or holotranscobalamin in females produces an increase of 15·85 µmol/l of EPA (P value <0·01), whereas an increase of 10 nmol/l of tHcy in males produces a decrease of 2·06 µmol/l of DHA (P value <0·05). Positive associations between B-vitamins and specific fatty acids might suggest underlying mechanisms between B-vitamins and CVD and it is worth the attention of public health policies.

  4. Body size at birth modifies the effect of fat mass and obesity associated (FTO) rs9939609 polymorphism on adiposity in adolescents: the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study.

    PubMed

    Labayen, Idoia; Ruiz, Jonatan R; Ortega, Francisco B; Gottrand, Frédéric; Huybrechts, Inge; Dallongeville, Jean; Widhalm, Kurt; Ferrari, Marika; Buyken, Annete; Kersting, Mathilde; Moschonis, George; Turck, Dominique; Gómez, Sonia; Sjostrom, Michael; Meirhaeghe, Aline; Moreno, Luis A

    2012-05-01

    The present study was intended to examine whether ponderal index (PI) at birth modifies the effect of the fat mass and obesity associated (FTO) rs9939609 polymorphism on adiposity in European adolescents. A total of 628 adolescents aged 14·4 (se 1·3) years (56·8 % female) were recruited. PI was calculated from parental reports of birth weight and length (kg/m³), and the BMI (kg/m²), body fat percentage and fat mass index (FMI, kg/m²) were calculated. The rs9939609 polymorphism was genotyped and physical activity assessed by accelerometry. Sex, duration of pregnancy, pubertal status, centre and physical activity were used as confounders in all the analyses. The minor A allele of the FTO rs9939609 was significantly associated with higher BMI, body fat percentage and FMI (all P < 0·05) but not with PI. Significant interactions between PI and the rs9939609 polymorphism in terms of body fat percentage (P = 0·002) and FMI (P = 0·017) were detected. However, this polymorphism was only significantly associated with higher BMI, body fat percentage and FMI (all P < 0·05) in adolescents in the lower PI tertile. Indeed, both body fat percentage and FMI were higher in those adolescents in the lower PI tertile carrying the A allele of the FTO rs9939609 polymorphism than in those with the TT genotype (25·0 (se 0·8) v. 22·1 (se 1·0) %, adjusted P = 0·030 and 5·6 (se 0·3) v. 4·6 (se 0·4) kg/m2, P = 0·031, respectively). Our findings suggest that those adolescents born with lower PI could be more vulnerable to the influence of the A risk allele of the FTO polymorphism on total adiposity content.

  5. Helena banks strike-slip(. ) fault and the relation to other Cenozoic faults along reactivated Triassic(. ) basin boundary fault zones in the Charleston, South Carolina, earthquake area - results from a marine high-resolution multichannel seismic-reflection survey

    SciTech Connect

    Behrendt, J.C.; Yuan, A.

    1985-01-01

    In 1981, the USGS conducted a high-resolution multichannel seismic (MCS) survey offshore of Charleston, South Carolina, to study the relation of Cenozoic faulting to future earthquake hazard. High-angle reverse displacement of Coastal Plain sedimentary rock indicating a linear increase with depth of 51 +/- 12 m/km is observed on the reflection profiles. This is similar to the Gants and Cooke faults in the meizoseismal area of the 1886 Charleston earthquake. The authors interpret these results to indicate that the stress field cannot have varied significantly in direction or in magnitude from Late Cretaceous time to Miocene or Pliocene time in the region. The HBF zone trends N 66/sup 0/ E; it comprises several 15- to 40-km-long segments that trend from N 68/sup 0/ E to N 77/sup 0/ E. The en-echelon pattern of the segments is compatible with left-lateral strike-slip and is thus consistent with the present northeast-trending maximum compressional stress field. The HBF zone appears to be an obliquely compressional reactivation of a tensional Triassic(.) fault zone bounding the Triassic(.) Kiawah Basin that has been identified on several MCS profiles. Similarly, the northeast-trending Gants reverse or strike-slip fault was probably reactivated from an old tensional fault bounding the Jedburg Triassic(.) basin in the 1886 meizoseismal area.

  6. Comparative Analysis of U.S. and Danish Army Leader Development Strategies

    DTIC Science & Technology

    2012-06-08

    28 Dr. Gert Hofstede on National Cultural Dimensions...47 Building the Strategy Framework –Comparing the Cases ............................................. 49 Analytical methodology...41 Table 9. The Analytical Framework ..............................................................................51 Table

  7. The Buffalo Creek Archaeological Project. Volume 1: Background and Testing at 3MS346 and 3CG847 Mississippi and Craighead Counties, Arkansas

    DTIC Science & Technology

    1992-01-01

    This was followed by the work at Helena Crossing (Ford 1964), the Banks and Cherry Valley site data (Perino 1966, 1967), and excavation on the Parkin...during this period. The only know classic Hopewell site in northeast Arkansas is Helena Crossing near Helena, Arkansas. Scattered Hoepwellian ceramics...a band of Spaniards into northeast Arkansas. The exact route of the party is uncertain, as is the point at which De Soto crossed the Mississippi River

  8. Countering Irregular Activity in Civil War Arkansas -- A Case Study

    DTIC Science & Technology

    2007-03-27

    Little Rock. This was Major General Thomas C. Hindman Jr., a Mexican War veteran and former resident of Helena , Arkansas. 8 Menaced by Curtis ’ return...to Helena on the Mississippi River. Curtis also responded to his logistical difficulties and the activities of guerrillas by giving Southerners...their first taste of the "hard war." Curtis successfully took Helena in July 1862. Hindman’s radical actions had alienated many of the state’s

  9. Environmental Statement. Small Intercontinental Ballistic Missile Program, Malmstrom Air Force Base, Montana. Appendix E

    DTIC Science & Technology

    1987-12-01

    Michael Fleming (Belt) 110 21. Dorothy Floerchinger (Conrad) 62 22. Gretchen Grayum (Montana) 112 23. Bill Hallinan (Helena) 103 24. Mary B. Hamilton ...Helena) 74 75. Shirley C. Walker (Great Falls) 24 76. Carla M. Williams (East Helena) 80 77. Zane Zell (Shelby) 59 78. Kenneth A. Ziegler (Great Falls...T.H. Thomas (Great Falls) Jerry O’Connell (Great Falls) Bill Thornby (Great Falls) Rowan Ogden (Cascade) Mitch Tropila (Great Falls) Ray Ozmon (Great

  10. Toxic Warfare

    DTIC Science & Technology

    2002-02-01

    77; Gert G. Harigel, Chemical and Biological Weapons: Use in Warfare, Impact on Society and Environment, Carnegie Endowment for International Peace...production is discussed in Gert G. Harigel, The Concept of Weapons of Mass Destruction: Chemical and Biological Weapons, Use in Warfare, Impact on Society and...poisoning was much smaller than that caused by land mines in the region, the use of poison was nonetheless an effective ter- ror weapon. 6See Jason Pate, Gary

  11. Anisotropy of the energetic neutral atom flux in the heliosphere

    NASA Technical Reports Server (NTRS)

    Gruntman, Michael A.

    1992-01-01

    Characteristics of the energetic neutral atoms born at the heliospheric interface are considered for plasma flow structure resulting from a two-shock model of the interaction between the solar wind and the interstellar medium. The energy distributions of heliospheric energetic neutral atoms (HELENAs) are calculated and it is shown that the HELENA flux is highly anisotropic at the earth's orbit. The characteristics of the HELENA flux are highly sensitive to the size of the heliosphere. This supports the conclusion that measurements of HELENAs from the earth's orbit would provide an efficient tool to remotely study the heliosphere.

  12. 76 FR 30536 - Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-26

    ... Helena Helena Rgnl......... 1/9844 5/2/11 RNAV (RNP) Y Rwy 27, Orig 30-Jun-11 MT Kalispell Glacier Park Intl... 1/9845 5/2/11 RNAV (RNP) Rwy 20, Orig 30-Jun-11 MT Kalispell Glacier Park Intl... 1/9847...

  13. 78 FR 14694 - Suspension of Community Eligibility

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-07

    ...; April 1, 1986, Reg;. April 2, 2013, Susp. Franklin, Township of, 422079 December 4, 1975, ......do Do...: Greensburg, Town of, Saint 220330 February 23, ......do Do. Helena Parish. 1976, Emerg; April 1, 1980, Reg;. April 2, 2013, Susp. Montpelier, Village of, 220300 March 8, 1976, ......do Do. Saint Helena Parish...

  14. Jointness in 1780 Charleston and 1861-1865 Charleston

    DTIC Science & Technology

    2007-11-02

    located around Edisto Island), Saint Helena Sound (Saint Helena Island), Port Royal Entrance (Hilton Head Island), and Savannah River (Savannah... Curtis , Edward E. The Organization of the British Army in the American Revolution. New York: AMS Press, 1969. Davies, K. G., ed. Documents of the

  15. 75 FR 43556 - TA-W-73,381, MT Rail Link, Inc., Missoula, MT; TA-W-73,381A, Billings, MT; TA-W-73,381B, Laurel...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-26

    ... Employment and Training Administration TA-W-73,381, MT Rail Link, Inc., Missoula, MT; TA-W-73,381A, Billings... facilities (yards) in Billings, Laurel, Livingston, Helena and Missoula, Montana. The Billings, Laurel... Rail Link, Inc. at facilities in Billings, Laurel, Livingston, and Helena, Montana. The amended...

  16. Gravitational Analysis of the In-Band Wormhole Phenomenon

    DTIC Science & Technology

    2006-11-01

    1 GRAVITATIONAL ANALYSIS OF THE IN-BAND WORMHOLE PHENOMENON Richard Gopaul1, Peter Kruus2, Dan Sterne2, Brian Rivera1 1U.S. Army Research...Laboratory Adelphi, MD, 20783 USA 2SPARTA, Inc. Columbia, MD, 21046 USA ABSTRACT In-band wormhole attacks undermine routing by attracting...technique, first presented in [KSG06], for evaluating the effects of in-band wormhole attacks on OLSR routing. The gravitational analysis technique

  17. Stream Traffic Communication in Packet Switched Networks,

    DTIC Science & Technology

    1977-08-01

    of the UCLA computing facility. Special thanks to my sons, Jason and Bret, who have request- ed and received very Little of my ti%P these past several...routing scheme by using the flow deviation method [ Gert 73J for example. Notice that fixed routing always performed better than the foreground routing...February 1977, pp 42-45. [ Gert 73) GerLa, M. "The Design of Store-and-Forward (S/F) Networks for Computer Communication." Computer Science Department

  18. 4. LARGE MEETING ROOM, SOUTH WALL, FIREPLACE AND PAINTING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. LARGE MEETING ROOM, SOUTH WALL, FIREPLACE AND PAINTING - Penn School Historic District, Frissell Community House, SC Route 37, 1 mile South of Frogmore, St. Helena Island, Frogmore, Beaufort County, SC

  19. 8. EAST (FRONT) ELEVATION, SHOWING DEPTH OF DOORWAYS, LOOKING SOUTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. EAST (FRONT) ELEVATION, SHOWING DEPTH OF DOORWAYS, LOOKING SOUTH - Penn School Historic District, Brick Church, SC Route 37, 1 mile South of Frogmore, St. Helena Island, Frogmore, Beaufort County, SC

  20. 3. FIRST FLOOR, FRONT ROOM WITH ENTRANCE DOORS ON THE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. FIRST FLOOR, FRONT ROOM WITH ENTRANCE DOORS ON THE EAST WALL - Penn School Historic District, Butler Building, SC Route 37, 1 mile South of Frogmore, St. Helena Island, Frogmore, Beaufort County, SC

  1. 3. FIRST FLOOR, FRONT ROOM (WHERE MARTIN LUTHER KING MADE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. FIRST FLOOR, FRONT ROOM (WHERE MARTIN LUTHER KING MADE PLANS FOR HIS MOVEMENT) - Penn School Historic District, Arnett House, SC Route 37, 1 mile South of Frogmore, St. Helena Island, Frogmore, Beaufort County, SC

  2. 3. FIRST FLOOR, FRONT SOUTHWEST CORNER ROOM WITH STAIRWAY TO ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. FIRST FLOOR, FRONT SOUTHWEST CORNER ROOM WITH STAIRWAY TO SECOND FLOOR - Penn School Historic District, Benezet House, 1 mile South of Frogmore, Route 37, St Helena Island, Frogmore, Beaufort County, SC

  3. 1. Photocopy of photograph (Original in collection of Historical Society ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Photocopy of photograph (Original in collection of Historical Society of Montana) MAIN AND SIDE ELEVATIONS, SHOWING PORCH USED FOR DANCING - W. C. Child Ranch, State Highway 279, Helena, Lewis and Clark County, MT

  4. 40 CFR 81.88 - Billings Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of...: Region II. 481.169Helena Intrastate Air Quality Control Region: Region IV. 481.170Miles City Intrastate...

  5. 40 CFR 81.88 - Billings Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of...: Region II. 481.169Helena Intrastate Air Quality Control Region: Region IV. 481.170Miles City Intrastate...

  6. 40 CFR 81.88 - Billings Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of...: Region II. 481.169Helena Intrastate Air Quality Control Region: Region IV. 481.170Miles City Intrastate...

  7. 40 CFR 81.88 - Billings Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of...: Region II. 481.169Helena Intrastate Air Quality Control Region: Region IV. 481.170Miles City Intrastate...

  8. 40 CFR 81.88 - Billings Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of...: Region II. 481.169Helena Intrastate Air Quality Control Region: Region IV. 481.170Miles City Intrastate...

  9. Nominate an outstanding vet for a BVA award.

    PubMed

    2017-04-01

    One of the highlights of the BVA year is the presentation of our awards at Members' Day. Public affairs manager Helena Cotton invites members to nominate outstanding vets to be considered for a BVA award. British Veterinary Association.

  10. 40 CFR 52.1376 - Extensions.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 1990, for submittal of the SIP for the East Helena area to attain and maintain the sulfur dioxide secondary NAAQS. Therefore, the SIP for the area was due November 15, 1993. The SIP was not submitted...

  11. 40 CFR 52.1376 - Extensions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 1990, for submittal of the SIP for the East Helena area to attain and maintain the sulfur dioxide secondary NAAQS. Therefore, the SIP for the area was due November 15, 1993. The SIP was not submitted...

  12. 40 CFR 52.1376 - Extensions.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 1990, for submittal of the SIP for the East Helena area to attain and maintain the sulfur dioxide secondary NAAQS. Therefore, the SIP for the area was due November 15, 1993. The SIP was not submitted...

  13. 40 CFR 52.1376 - Extensions.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 1990, for submittal of the SIP for the East Helena area to attain and maintain the sulfur dioxide secondary NAAQS. Therefore, the SIP for the area was due November 15, 1993. The SIP was not submitted...

  14. 40 CFR 52.1376 - Extensions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 1990, for submittal of the SIP for the East Helena area to attain and maintain the sulfur dioxide secondary NAAQS. Therefore, the SIP for the area was due November 15, 1993. The SIP was not submitted...

  15. 30 CFR 926.10 - State regulatory program approval.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Quality, Industrial and Energy Minerals Bureau, P.O. Box 200901, Helena, Montana 59620-0901, (406) 444-1923. (b) Casper Field Office, Office of Surface Mining Reclamation and Enforcement, 100 East B Street...

  16. 30 CFR 926.10 - State regulatory program approval.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Quality, Industrial and Energy Minerals Bureau, P.O. Box 200901, Helena, Montana 59620-0901, (406) 444-1923. (b) Casper Field Office, Office of Surface Mining Reclamation and Enforcement, 100 East B Street...

  17. 30 CFR 926.10 - State regulatory program approval.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Quality, Industrial and Energy Minerals Bureau, P.O. Box 200901, Helena, Montana 59620-0901, (406) 444-1923. (b) Casper Field Office, Office of Surface Mining Reclamation and Enforcement, 100 East B Street...

  18. Celebrities Gather to Fight Heart Disease

    MedlinePlus

    ... Kimberly Guilfoyle Villency, Kim Cattrall, Katharine McPhee, Sheila Johnson, Danica Patrick, Angela Bassett, Mae Jemison, Lauren Hutton, ... Matlin, Zuleyka Rivera, Natalie Morales, Helena Christensen, Betsey Johnson, Kelly Ripa, Kristin Chenoweth, Billie Jean King, Jane ...

  19. 5. Photocopy of photograph (Original in collection of the Historical ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. Photocopy of photograph (Original in collection of the Historical Society of Montana) VIEW TAKEN DURING CONSTRUCTION, SHOWING FIRST FLOOR NEARLY COMPLETED - U. S. Assay Office, 206 Broadway Street, Helena, Lewis and Clark County, MT

  20. 3. Photocopy of photograph (Original in collection of the Historical ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. Photocopy of photograph (Original in collection of the Historical Society of Montana) PERSPECTIVE VIEW OF MAIN AND WEST ELEVATIONS - U. S. Assay Office, 206 Broadway Street, Helena, Lewis and Clark County, MT

  1. 6. Photocopy of photograph (Original in collection of the Historical ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. Photocopy of photograph (Original in collection of the Historical Society of Montana) INTEIOR VIEW OF ASSAYING EQUIPMENT - U. S. Assay Office, 206 Broadway Street, Helena, Lewis and Clark County, MT

  2. 4. Photocopy of photograph (Original in collection of the Historical ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Photocopy of photograph (Original in collection of the Historical Society of Montana) VIEW OF THE FOUNDATIONS OF THE ASSAY OFFICE, UNDER CONSTRUCTION - U. S. Assay Office, 206 Broadway Street, Helena, Lewis and Clark County, MT

  3. Studies in Lewis Acid and Superacid Ionic Liquids

    DTIC Science & Technology

    1993-04-16

    Chem., 14, 1232 (1975). 11. H. L. Chum , V. R. Koch, L. L. Miller and R. A. Osteryoung, "An Electrochemical Scrutiny of Organometallic Iron Complexes and...Helena Li Chum , T. Rabockai, J. Phillips and R. A. Osteryoung, "Ligand- Oxidation in Iron Diimine Complexes. ill. Electrochemical Oxidation of tris...glyoxalbis(methylimine))Jron(ll)", Inorg. Chem., 16, 1812 (1977). 21. Helena Li Chum , D. Koran and R. A. Osteryoung, ’The Electrochemical Behavior of

  4. JPRS Report West Europe

    DTIC Science & Technology

    1988-08-12

    female fellow minister, Helena Pesola , despite earlier talk about never again having two female ministers at the Ministry of Social Affairs. Hard...Work Might Yet Be Rewarded Originally, the Conservatives waited most anxiously to see how Helena Pesola would fare as a minister of social affairs...and health. And the party is still waiting. It must be admitted, however, that Pesola has quickly started to look and act like a minister. She gives

  5. Summary of Synoptic Meteorological Observations (SSMO). South America and Selected Island Coastal Marine Areas, Atlantic Islands. Volume 3. Area 17 - Tierra del Fuego, Area 18 - Falkland Islands, Area 19 -South Georgia, Area 20 - Tristan da Cunha Group, Area 21 - Trindade, Area 22 - St. Helena, Area 23 - Ascension, Area 24 - St. Peter and Paul Rocks

    DTIC Science & Technology

    1977-06-01

    0 17.5 .0 .0 .0 .0 .0 .0 .0 FACE »21 »TW* ■■’■ "■ IIUI" »E«ICD! fOVE«-«LO 1963-1970 JANUARY TABLE 18 (CONTi IKEA 0021 TOINDADE...DIRECTION VIPSuS SE4 HEIGHTS IFTl IKEA 0024 ST, PETER AND PAUL ROCKS ,6N 29.3» s iu HGT 1-3 4-10 11-21 22-33 34-47 41« PCT 1...l". - L ■■■’■■’ • ’ " wwm PEIKOl iQVER-»LLI IS’OS-l1»?» I SFPTEMBfR TABLE 16 (CDNT1 IKEA 002« ST. PETER AND PAUL RCfKS

  6. Intentionality and Thinking as "Hearing". A Response to Biesta's Agenda

    ERIC Educational Resources Information Center

    d'Agnese, Vasco

    2016-01-01

    In his 2012 article "Philosophy of Education for the Public Good: Five Challenges and an Agenda", Gert Biesta identifies five substantial issues about the future of education and the work required to address these issues. This article employs a Heideggerian reading of education to evaluate "Biesta's truth". I argue that…

  7. Jacques Derrida's Religion With/out Religion and the Im/possibility of Religious Education

    ERIC Educational Resources Information Center

    Miedema, Siebren; Biesta, Gert J. J.

    2004-01-01

    This article aims at rethinking religious education from an engagement with Derrida's forms of reasoning and analyzing. In the first section Gert Biesta presents deconstruction and shows how we can find deconstruction in education. In the second section Siebren Miedema explores the religious horizon of deconstruction. In the final section the…

  8. What Should Educational Institutions Be for?

    ERIC Educational Resources Information Center

    MacAllister, James

    2016-01-01

    In this article, I respond to the work of Gert Biesta regarding the question of what education should be for. He maintains education ought to be oriented towards the "good" rather than measurement, accountability and efficiency. While sympathetic to such claims, I nonetheless question his avowal that discussion of the purposes of…

  9. Corporal Punishment and the Pain Provoked by the Community of Enquiry Pedagogy in the University Classroom

    ERIC Educational Resources Information Center

    Murris, Karin

    2014-01-01

    Education for transformation and social justice calls for critical, reflective, imaginative and independent thinkers with enquiring minds and a strong sense of curiosity--the ends and means of what Jonathan Jansen calls a "pedagogy to disrupt" and Gert Biesta a "pedagogy of interruption". For this reason, I introduced an…

  10. Teaching, Teacher Education, and the Humanities: Reconsidering Education as a "Geisteswissenschaft"

    ERIC Educational Resources Information Center

    Biesta, Gert

    2015-01-01

    In this essay Gert Biesta asks what the humanities can contribute to the field of teacher education. In addressing this question he turns to the idea of education as a "Geisteswissenschaft" as it was developed in the German-speaking context in the first decades of the twentieth century. In this conception, education is configured as an…

  11. Education, Freedom, and Temporality: A Response to Biesta and Säfström's Manifesto

    ERIC Educational Resources Information Center

    Yun, Suninn

    2014-01-01

    Since it was first published in 2011, "A Manifesto for Education" by Gert Biesta and Karl Anders Säfström has received numerous enthusiastic reviews and been hailed as providing "an alternative vision for education". Such enthusiasm, however, is perhaps not purely attributable to the substance of the text but also to the form…

  12. Why "What Works" Won't Work: Evidence-Based Practice and the Democratic Deficit in Educational Research

    ERIC Educational Resources Information Center

    Biesta, Gert

    2007-01-01

    In this essay, Gert Biesta provides a critical analysis of the idea of evidence-based practice and the ways in which it has been promoted and implemented in the field of education, focusing on the tension between scientific and democratic control over educational practice and research. Biesta examines three key assumptions of evidence-based…

  13. Integrate Evaluation into the Planning Process.

    ERIC Educational Resources Information Center

    Camp, William

    1985-01-01

    In an attempt to correct for limitations in the Program Evaluation and Review Technique-Critical Path Method (PERT-CPM), the Graphical Evaluation and Review Technique (GERT) has been developed. This management tool allows for evaluation during the facilities' development process. Two figures and two references are provided. (DCS)

  14. "The Power to Develop Dispositions": Revisiting John Dewey's Democratic Claims for Education

    ERIC Educational Resources Information Center

    Baldacchino, John

    2008-01-01

    This article reviews "John Dewey and Our Educational Prospect, A Critical Engagement with Dewey's Democracy and Education," edited and spearheaded by David T. Hansen, with contributions by Gert Biesta, Reba N. Page, Larry A. Hickman, Naoko Saito, Gary D. Fenstermacher, Herbert M. Kliebard, Sharon Fieman-Nemser and Elizabeth Minnich. This…

  15. Integrate Evaluation into the Planning Process.

    ERIC Educational Resources Information Center

    Camp, William

    1985-01-01

    In an attempt to correct for limitations in the Program Evaluation and Review Technique-Critical Path Method (PERT-CPM), the Graphical Evaluation and Review Technique (GERT) has been developed. This management tool allows for evaluation during the facilities' development process. Two figures and two references are provided. (DCS)

  16. Dewey, Derrida, and the Genetic Derivation of "Différance"

    ERIC Educational Resources Information Center

    Garrison, Jim

    2017-01-01

    My article is a rejoinder to Gert Biesta's, '"This is My Truth, Tell Me Yours". Deconstructive pragmatism as a philosophy of education.' Biesta attempts to place Jacques Derrida's deconstruction in 'the very heart' of John Dewey's pragmatism (710). My article strives to impress Deweyan pragmatism in the heart of Derridian deconstruction.…

  17. Multi-Beam Digital Antenna for Radar, Communications, and UAV Tracking Based on Off-the-Shelf Wireless Technologies

    DTIC Science & Technology

    2006-09-01

    fast efficient analysis and design of components like antennas, filters, transmission lines, couplers , connectors, printed circuit boards...Automation Catalog 2006, National Instruments. [24] http://sine.ni.com/nips/cds/view/p/ lang /en/nid/202555, August 2006. [25] Gert Burgstaller

  18. Teaching, Teacher Education, and the Humanities: Reconsidering Education as a "Geisteswissenschaft"

    ERIC Educational Resources Information Center

    Biesta, Gert

    2015-01-01

    In this essay Gert Biesta asks what the humanities can contribute to the field of teacher education. In addressing this question he turns to the idea of education as a "Geisteswissenschaft" as it was developed in the German-speaking context in the first decades of the twentieth century. In this conception, education is configured as an…

  19. The Purposes Outdoor Education Does, Could and Should Serve in Singapore

    ERIC Educational Resources Information Center

    Ho, Susanna

    2014-01-01

    This paper discusses the purposes that outdoor education does, could and should serve in Singapore. Gert Biesta's conceptualisation of three functions of education is adapted to frame deliberations on the purposes of outdoor education in Singapore's socio-political and educational milieu. The author suggests that outdoor education in Singapore…

  20. What Should Educational Institutions Be for?

    ERIC Educational Resources Information Center

    MacAllister, James

    2016-01-01

    In this article, I respond to the work of Gert Biesta regarding the question of what education should be for. He maintains education ought to be oriented towards the "good" rather than measurement, accountability and efficiency. While sympathetic to such claims, I nonetheless question his avowal that discussion of the purposes of…

  1. Empirical Research without Certainty

    ERIC Educational Resources Information Center

    Floden, Robert E.

    2009-01-01

    In this essay, Robert Floden reviews three recent volumes in the Philosophy, Theory, and Educational Research series that address the philosophical implications of three "isms"-- postpositivism, pragmatism, and poststructuralism--for empirical educational research. These volumes, written by D.C. Phillips, Gert J.J. Biesta, and Michael A. Peters,…

  2. Corporal Punishment and the Pain Provoked by the Community of Enquiry Pedagogy in the University Classroom

    ERIC Educational Resources Information Center

    Murris, Karin

    2014-01-01

    Education for transformation and social justice calls for critical, reflective, imaginative and independent thinkers with enquiring minds and a strong sense of curiosity--the ends and means of what Jonathan Jansen calls a "pedagogy to disrupt" and Gert Biesta a "pedagogy of interruption". For this reason, I introduced an…

  3. Male Teachers' Experiences of Own Aggression

    ERIC Educational Resources Information Center

    Botha, Johan; Myburgh, Chris; Poggenpoel, Marie

    2013-01-01

    We describe an exploratory, descriptive, and contextual study on the lived experiences of 17 male teachers' own aggression in the Gert Sibande district in Mpumalanga province. Individual phenomenological interviews were used to collect data from these volunteers for this qualitative research. The data were analysed by means of an open coding…

  4. "The Power to Develop Dispositions": Revisiting John Dewey's Democratic Claims for Education

    ERIC Educational Resources Information Center

    Baldacchino, John

    2008-01-01

    This article reviews "John Dewey and Our Educational Prospect, A Critical Engagement with Dewey's Democracy and Education," edited and spearheaded by David T. Hansen, with contributions by Gert Biesta, Reba N. Page, Larry A. Hickman, Naoko Saito, Gary D. Fenstermacher, Herbert M. Kliebard, Sharon Fieman-Nemser and Elizabeth Minnich. This…

  5. The Purposes Outdoor Education Does, Could and Should Serve in Singapore

    ERIC Educational Resources Information Center

    Ho, Susanna

    2014-01-01

    This paper discusses the purposes that outdoor education does, could and should serve in Singapore. Gert Biesta's conceptualisation of three functions of education is adapted to frame deliberations on the purposes of outdoor education in Singapore's socio-political and educational milieu. The author suggests that outdoor education in Singapore…

  6. Pedagogy of Attention: Subverting the Strong Language of Intention in Social Justice Education

    ERIC Educational Resources Information Center

    Desroches, Sarah J.

    2016-01-01

    In this paper, I explore the possibility of social justice education as pedagogy of "attention" rather than simply pedagogy of "intention." Drawing on Gert Biesta's (2010) concept of "strong" education, I begin by explaining how the language of intention in social justice education relies on a discourse in which…

  7. Test-Based Teacher Evaluations: Accountability vs. Responsibility

    ERIC Educational Resources Information Center

    Bolyard, Chloé

    2015-01-01

    Gert Biesta contends that managerial accountability, which focuses on efficiency and competition, dominates the current political arena in education. Such accountability has influenced states' developments of test-based teacher evaluations in an attempt to quantify teachers' efficacy on student learning. With numerous state policies requiring the…

  8. Peer Leadership: Leading from the Middle

    DTIC Science & Technology

    2013-05-23

    a framework to show the various situations where these characteristics of peer leadership are applied. Historical examples provide context for the...Army. Washington D.C.: Army Publishing Directorate, 1994. Hofstede , Geert H., Hofstede , Gert Jan, and Minkov, Michael. Cultures and Organizations

  9. Close Air Support versus Close Combat Attack

    DTIC Science & Technology

    2012-12-06

    the course of interacting with one’s social environment and experiences.58 Hofstede breaks culture down into four distinct parts, symbols, heroes...preceding three parts are manifested in what Hofstede terms as practices. These practices are observable manifestations of what those outside of the...58 Geert Hofstede , Gert Jan Hofstede , and Michael Minkov, Cultures and Organizations: Software of the Mind

  10. Conference on Coherent Radars for Range Instrumentation Held at Space and Missile Test Center, Vandenberg Air Force Base, California on 5-7 March 1974

    DTIC Science & Technology

    1974-03-07

    Jantz, Jr SAMTEC/ROSFchandler, Terry Autonetics Jason , F., Lt Col SAMTEC/ROPRhesebro, Ellsworth SAMTEC/ENY Johns, Milton SAMTEC/ENIý’in, Bell WSMP...to take another stab at this system, take a look at GERTS for ! MINUTEMAN, or whatever means we can. Maybe an interferometric system? I’m not talking

  11. Design Fragments

    DTIC Science & Technology

    2007-04-19

    http://doi.ieeecomputersociety.org/10.1109/ICSM.2005.40. 8.2.8 [17] Gert Florijn, Marco Meijers, and Pieter van Winsen. Tool support for object...Garlan. Software Architecture: Perspectives on an Emerging Disci- pline. Prentice-Hall, 1996. ISBN 0-13-182957-2. 9.5 [58] Jason McC. Smith and David

  12. Characterization of Microbial Processes that Degrade Chlorinated Solvents in a Constructed Wetland Using Organic Acid and Inorganic Anion Concentration Profiles

    DTIC Science & Technology

    2006-05-31

    thanks to Jason Lach for getting me started in the lab. Finally, I am honored to have shared the past 18 months with my 22 classmates. It has...Organics in Ground Water. EPA/540/R-97/504. Washington D.C.: Office of Research and Development (1997). 102 Holliger, Christof, Gert Wohlfarth

  13. UAVs - Current Situation and Considerations for the Way Forward

    DTIC Science & Technology

    2000-04-01

    prospectionAAI Corp. has been involved with the Pioneer UAV from Examples Crecerelle, Dragon, EyeView, Fox , Heliot+, Mirach 26, Nlshant, the onset, and...Tactical LADP RS Hussard FW Tactical CR FOG RSTA Altec Industries S-Mart FW Tactical SR RSTA CAC Systbmes Fox AT & TX FW Tactical SR RSTA K100 FW...high-winged monoplane with boom fuselage - Schiebel Elektr. Ger.te, Austria Camcopter andT tail unit (Raven-Flight Refueling, UK & Fox MLCS

  14. The Role of Entanglements in the Swelling of Poly(dimethylsiloxane) Networks

    DTIC Science & Technology

    1992-08-01

    purging with nitrogen, and evacuating the gas with a vacuum pump. The flask was equipped with a rubber septum and a magnetic stir bar. After the flask... chromatography (GPC) at Eastman Kodak Company. Toluene was used as the carrier solvent and polystyrene standards were used to calibrate the instrument...solvent molar volume, R is the gas constant, T is the absolute temperature, and Ge is the equilibrium shear modulus of the unswollen network. Ge/RT has

  15. An Evaluation of Alternatives for Processing of Administrative Pay Vouchers: A Simulation Approach.

    DTIC Science & Technology

    1982-09-01

    Finance Travel Voucher Q-GERT Productivity Personnel Forecasts Simulation Model 20. ABSTRACT (Continue on reverse side if necessary end Jdentfly by...Finance Office (ACF) has devised a Point System for use in determining the productivity of the ACF Travel Section (ACFTT). This Point System sets values...5 to 5+) to be assigned to incoming travel vouchers based on voucher complexity. This research had set objectives of (1) building an ACFTT model that

  16. [The problem of usefulness of the philosophical concept of disease in medicine].

    PubMed

    Sak, Jarosław

    2009-01-01

    This work focuses on contemporary discussions devoted to the general concept of disease and its relevance to clinical practice. Some authors (e.g., Hesslow) argue against a key role of the general concept of disease in clinical decision-making. Other authors (Pellegrino, Clouser, Culver, and Gert) emphasize the significance of the concept of disease in public health and in the methodology of medical practice.

  17. JPRS Report, West Europe.

    DTIC Science & Technology

    2007-11-02

    serious economic, social and cultural problems which our country faces. No one can maintain that consolidating a policy of friendship is something easy...8217 Procedures (Ugur Mumcu; CUMHURIYET, 10 Apr 87) 115 SOCIAL DENMARK Youth Seen Increasingly Attracted to Jobs in Private Sector (BERLINGSKE...will stop attacking the Social Democrats in the political debate. Gert Petersen (SF) feels the Social Democrats have started to stress a future SDP

  18. A Compendium of Air Force Institute of Technology Thesis Abstracts Related to Acquisition Management

    DTIC Science & Technology

    1990-09-01

    122 WEIGHTED GUIDELINES: AN EMPIRICAL INVESTIGATION OF RESEARCH AND DEVELOPMENT ACQUISITION. Craig, Michael R.;Pousardien, Henri J . Sep 82 AD-Al23...PARADIGM AND Q-GERT. Bryson, Gary C.;Husby, David J .;Webb, Michael E. Sep 82 AD-A123 051 ABSTRACT: Acquisition of support equipment is an integral part...Systems Management IMPORTANCE AND UTILIZATION OF SPECIALIZED COMPETENCE WITHIN A MATRIX ORGANIZATIONAL ENVIRONMENT. Thorn, Mack J Sep 89 AD-A215 625

  19. Influence Small State Force Design

    DTIC Science & Technology

    2012-03-22

    Publishing Company, Ireland, 2011), 15. 14 Geert Hofstede , Gert Hofstede , Cultures and Organizations: Software of the mind, (New York: McGraw Hill, 2010...Small State Force Design 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR( S ) COL Ivan Mikuž, Slovenian...Army 5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME( S ) AND ADDRESS(ES) 8

  20. Improving Leadership Development within U.S. Customs and Border Protection

    DTIC Science & Technology

    2012-03-12

    document simply provides a framework upon which a cohesive implementing strategy can be built. It allows for effective long term planning to take...two thirds of their brother and sister Agents have just a couple years in service and are relatively new themselves? Geerte Hofstede and Gert Jan... Hofstede sum up this issue perfectly when they write, “Culture is the unwritten book with rules of the social game that is passed on to newcomers by

  1. Using Social Influence Theory to Increase the Effectiveness of Influence Operations

    DTIC Science & Technology

    2011-05-01

    techniques. The cultural characteristics developed by Geert Hofstede and refined by the GLOBE project provide a cultural framework to analyze a target...transportation framework and a closed social culture that is 16 Geert Hofstede , Gert Jan Hofstede , and Michael Minkov, Cultures and Organizations: Software...aimed above the grassroots level. Cultural characteristic analysis begins with Geert Hofstede and his framework of five cultural dimensions of

  2. A Stability Police Force for the United States: Justification and Options for Creating U.S. Capabilities

    DTIC Science & Technology

    2009-01-01

    in Pristina, Kosovo; and Gert Besselink, Deputy Commander of the European Gendarmerie Force. Finally, Charlotte Lynch of RAND provided important...Jordan, and Jason Cheney, Cop Crunch: Identifying Strategies for Dealing with the Recruiting and Hiring Crisis in Law Enforcement, Washington, D.C...Bruce Taylor, Bruce Kubu, Lorie Fridell, Carter Rees, Tom Jordan, and Jason Cheney, Cop Crunch: Identifying Strategies for Dealing with the

  3. Should the Air Force Teach Running Technique

    DTIC Science & Technology

    2012-02-15

    2004): 345-352. Bruggemann, Gert -Peter, Wolfgang Potthast, Bjorn Braunstein, and Anja Niehoff. “Effect of Increased Mechanical Stimuli on Foot...Daoud, Adam I., Gary J. Geissler, Frank Wang, Jason Saretsky, Yahya A. Daoud, and Daniel E. Lieberman. “Foot Strike and Injury Rates in Endurance...the author. E-mail, 17 October 2011. Edwards, W., David Taylor, Thomas Rudolphi, Jason Gillette, and Timothy Derrick. “Effects of Stride Length and

  4. The method of 'principlism': a critique of the critique.

    PubMed

    Lustig, B A

    1992-10-01

    Several scholars have recently criticized the dominant emphasis upon mid-level principles in bioethics best exemplified by Beauchamp and Childress's Principles of Biomedical Ethics. In Part I of this essay, I assess the fairness and cogency of three broad criticisms raised against 'principlism' as an approach: (1) that principlism, as an exercise in applied ethics, is insufficiently attentive to the dialectical relations between ethical theory and mortal practice; (2) that principlism fails to offer a systematic account of the principles of non-maleficence, beneficence, respect for autonomy, and justice; and (3) that principlism, as a version of moral pluralism, is fatally flawed by its theoretical agnosticism. While acknowledging that Beauchamp and Childress's reliance upon Ross's version of intuitionism is problematic, I conclude that the critics of principlism have failed to make a compelling case against its theoretical or practical adequacy as an ethical approach. In Part II, I assess the moral theory developed by Bernard Gert in Mortality: A New Justification of the Moral Rules, because Gert has recommended his approach as a systematic alternative to principlism. I judge Gert's theory to be seriously incomplete and, in contrast to principlism, unable to generate coherent conclusions about cases of active euthanasia and paternalism.

  5. Second Language Acquisition: Preparing for Tomorrow. Selected Papers from the Annual Meeting of the Central States Conference on the Teaching of Foreign Languages (Milwaukee, Wisconsin, April 3-5, 1986).

    ERIC Educational Resources Information Center

    Snyder, Barbara, Ed.

    A collection of papers on second language instruction includes: "The Immersion Approach: Principle and Practice" (Helena Anderson Curtain); "Authentic Camera-Produced Materials for Random-Access Video Delivery" (Francis Lide, Barbara Lide); "Listening: What's Really Going on in the Classroom?" (Donna Reseigh Long); "Listening and Learning:…

  6. 40 CFR 52.1375 - Control strategy: Lead.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 4 2010-07-01 2010-07-01 false Control strategy: Lead. 52.1375 Section...) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS (CONTINUED) Montana § 52.1375 Control strategy: Lead. Determination—EPA has determined that the East Helena Lead nonattainment area has attained the lead national...

  7. 1. Photocopy of photograph (Original in collection of Historical Society ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Photocopy of photograph (Original in collection of Historical Society of Montana) EARLY PHOTOGRAPH (PRIOR TO 1936) SHOWING MAIN AND SIDE ELEVATIONS. THE LARGE CHIMNEYS WERE REMOVED AFTER THE 1935 EARTHQUAKE - Old Governors Mansion, 304 North Ewing Street, Helena, Lewis and Clark County, MT

  8. 29 CFR 783.21 - Guiding principles for applying coverage and exemption provisions.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... that Congress intended the Fair Labor Standards Act to be broad in its scope (Helena Glendale Ferry Co... Co., 339 U.S. 497). An employer who claims an exemption under the Act has the burden of showing that it applies (Walling v. General Industries Co., 330 U.S. 545; Mitchell v. Kentucky Finance Co., 359...

  9. 29 CFR 783.21 - Guiding principles for applying coverage and exemption provisions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... that Congress intended the Fair Labor Standards Act to be broad in its scope (Helena Glendale Ferry Co... Co., 339 U.S. 497). An employer who claims an exemption under the Act has the burden of showing that it applies (Walling v. General Industries Co., 330 U.S. 545; Mitchell v. Kentucky Finance Co., 359...

  10. 77 FR 48126 - Missouri River Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-13

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Missouri River Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Missouri River Resource Advisory Committee will meet in Helena, Montana. The...

  11. The Challenge To Be Relevant in the 21st Century: Abstracts and Full Text Documents of Papers and Demos Given at the [International Association of Technological University Libraries] IATUL Conference (Pretoria, South Africa, June 1-5, 1998), Volume 18.

    ERIC Educational Resources Information Center

    International Association of Technological Univ. Libraries, Gothenburg (Sweden).

    This proceedings of the 1998 conference of the International Association of Technological University Libraries (IATUL) contains the full text of the following papers: "A Library Ready for 21st Century Services: The Case of the University of Science and Technology (UST) Library, Kumasi, Ghana" (Helena Rebecca Asamoah-Hassan);…

  12. Environmental and Water Quality Operational Studies. Reservoir Shoreline Revegetation Guidelines.

    DTIC Science & Technology

    1986-11-01

    support high populations of potentially destructive animals, e.g., beavers, muskrats, and cattle. Sites with adverse characteristics such as steep or...North Modesto , CA 95352 Saint Helena, CA 94374 Ferry Morse Seed Company Northrup-King and Company 2120 Via Burton Box 1383 Anaheim, CA 92806 Fresno, CA

  13. The Foreign Disclosure and Technical Information System (FORDTIS) User Manual

    DTIC Science & Technology

    1985-07-01

    COUNTRY CO COLOMBIA CQ NORTHERN MARIANA ISLANDS CR CORAL SEA ISLANDS CS COSTA RICA CT CENTRAL AFRICAN REPUBLIC CU CUBA CV CAPE VERDE (formerly...HELENA SL SIERRA LEONE SM SAN MARINO SN SINGAPORE A-4 CODE COUNTRY SO SOMALIA SP SPAIN ST ST. LUCIA SU SUDAN m SVALBARD , . ;■ sw

  14. EFFECTS OF PH AND PHOSPHATE ON METAL DISTRIBUTION WITH EMPHASIS ON AS SPECIATION AND MOBILIZATION IN SOILS FROM A LEAD SMELTING SITE

    EPA Science Inventory

    Arsenic in soils from the Asarco Lead Smelter in East Helena, Montana was characterized by X-ray absorption spectroscopy (XAS). As oxidation state and geochemical speciation were analyzed as a function of depth (two sampling sites) and surface distribution. These results were c...

  15. AS SPECIATION AND EFFECTS OF PH AND PHOSPHATE ON THE MOBILIZATION OF AS IN SOILS FROM A LEAD SMELTING SITE. PUBLISHED IN ADVANCED PHOTON SOURCE ACTIVITY REPORT 2003.

    EPA Science Inventory

    Arsenic in soils from the Asarco lead smelter in East Helena, Montana was characterized by X-ray absorption spectroscopy (XAS). Arsenic oxidation state and mineralogy were analyzed as a function of depth and surface distribution using bulk and microprobe XAS. These results were c...

  16. ETV REPORT: EVALUATION OF HYDROMETRICS, INC., HIGH EFFICIENCY REVERSE OSMOSIS (HERO™) INDUSTRIAL WASTEWATER TREATMENT SYSTEM

    EPA Science Inventory

    Hydrometrics, founded in 1979 and located in Helena, MT, manufactures a commercial-ready High Efficiency Reverse Osmosis (HERO™) industrial wastewater treatment system. The system uses a three-stage reverse osmosis process to remove and concentrate metals for recovery while prod...

  17. 7 CFR 1000.52 - Adjusted Class I differentials.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... ST. CHARLES LA 22089 3.60 ST. HELENA LA 22091 3.50 ST. JAMES LA 22093 3.60 ST. JOHN THE BAPTIST LA....45 ADAIR IA 19001 1.80 ADAMS IA 19003 1.80 ALLAMAKEE IA 19005 1.75 APPANOOSE IA 19007 1.80 AUDUBON IA...

  18. 5 CFR Appendix C to Subpart B of... - Appropriated Fund Wage and Survey Areas

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...: Jefferson Orleans Plaquemines St. Bernard St. Charles St. John the Baptist St. Tammany Area of Application... Livingston Pointe Coupee St. Helena St. James St. Mary Tangipahoa Terrebonne Washington West Baton Rouge West... Thomas Thurston Valley Washington Wayne Webster Wheeler York Iowa: Adams Audubon Buena Vista Cass...

  19. 75 FR 44094 - Update of the Federal Energy Regulatory Commission's Fees Schedule for Annual Charges for the Use...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-28

    ... Louisiana St. Helena......... 62.78 Louisiana St. James 47.08 Louisiana St. John the 94.17 Baptist... Whitley 94.17 Iowa Adair 47.08 Iowa Adams 47.08 Iowa Allamakee 47.08 Iowa Appanoose 31.39 Iowa Audubon 47...

  20. Terrain Dynamics Analysis Using Space-Time Domain Hypersurfaces and Gradient Trajectories Derived From Time Series of 3D Point Clouds

    DTIC Science & Technology

    2015-08-01

    Geomorphology , (01 2012): 122. doi: 10.1016/j.geomorph.2010.09.033 Eric Hardin, M. Onur Kurum, Helena Mitasova, Margery F. Overton. Least Cost Path... Geomorphological Applications: A Smoothed Particle Hydrodynamics Approach, GSA 2012 *Russ, E. Mitasova, H., Time series and space-time cube analyses on

  1. AS SPECIATION AND EFFECTS OF PH AND PHOSPHATE ON THE MOBILIZATION OF AS IN SOILS FROM A LEAD SMELTING SITE. PUBLISHED IN ADVANCED PHOTON SOURCE ACTIVITY REPORT 2003.

    EPA Science Inventory

    Arsenic in soils from the Asarco lead smelter in East Helena, Montana was characterized by X-ray absorption spectroscopy (XAS). Arsenic oxidation state and mineralogy were analyzed as a function of depth and surface distribution using bulk and microprobe XAS. These results were c...

  2. Toward a Borderlands Ethics: The Undocumented Migrant and Haunted Communities in Contemporary Chicana/o Fiction

    ERIC Educational Resources Information Center

    Ramirez, Pablo A.

    2010-01-01

    By reading Helena Maria Viramontes's "Cariboo Cafe" and Daniel Chacon's "Godoy Lives," this essay argues that Chicana/o fiction articulates what I call a "borderlands ethics." Both Viramontes and Chacon give the undocumented migrant the power to merge the United States and Latin America, self and other, citizen and…

  3. Proceedings of the Annual Meeting of the Association for Education in Journalism and Mass Communication (83rd, Phoenix, Arizona, August 9-12, 2000). Minorities and Communication Division.

    ERIC Educational Resources Information Center

    Association for Education in Journalism and Mass Communication.

    The Minorities and Communication Division section of the proceedings contains the following 10 papers: "Gender Stereotypes and Race in Music Videos: Cultivating Unreality" (Helena K. Sarkio); "Copycats, Conspirators and Bigots: Themes in Southern, Northern and Western Newspaper Editorial Portrayals of the Black Church-Burning…

  4. Kiddie Algebra

    ERIC Educational Resources Information Center

    Cavanagh, Sean

    2009-01-01

    As educators and policymakers search for ways to prepare students for the rigors of algebra, teachers in the Helena, Montana, school system are starting early by attempting to nurture students' algebraic-reasoning ability, as well as their basic number skills, in early elementary school, rather than waiting until middle or early high school.…

  5. Representations of Mexican American Migrant Childhood in Rivera's "...y no se lo trago la tierra" and Viramontes's "Under the Feet of Jesus"

    ERIC Educational Resources Information Center

    Beck, Scott A.; Rangel, Dolores E.

    2009-01-01

    This article gives an analysis of two books: Thomas Rivera's "...y no se lo trago la tierra" and Helena Maria Viramontes's "Under the Feet of Jesus". The two books are strong and important literary texts that stand in close relation to each other. Both texts treat the subject of migrant childhood by affirming central themes of Chicano literature.…

  6. Theory and Research Section. Education and Research Division. Papers.

    ERIC Educational Resources Information Center

    International Federation of Library Associations, The Hague (Netherlands).

    Papers on research in library science and the exhibition of library materials which were presented at the 1982 International Federation of Library Associations (IFLA) conference include: (1) "Terminological Problems of Networks," a discussion by Helena Kolarova Palkova of the meaning of "library networks" and…

  7. [Traditional midwife texts].

    PubMed

    Lundgren, Ingela; Stolt, Carl-Magnus

    2007-01-01

    We report an hermeneutic text study in two early midwife text books. In Louise Bourgeois book from early 17th century the individual caring perspective is more present than in Helena Malhiems book from the middle of the 18th century. In both books, however, non-technological aspects of child birth delivery is more prominent than in books written by doctors.

  8. ETV REPORT: EVALUATION OF HYDROMETRICS, INC., HIGH EFFICIENCY REVERSE OSMOSIS (HERO™) INDUSTRIAL WASTEWATER TREATMENT SYSTEM

    EPA Science Inventory

    Hydrometrics, founded in 1979 and located in Helena, MT, manufactures a commercial-ready High Efficiency Reverse Osmosis (HERO™) industrial wastewater treatment system. The system uses a three-stage reverse osmosis process to remove and concentrate metals for recovery while prod...

  9. Second Language Acquisition: Preparing for Tomorrow. Selected Papers from the Annual Meeting of the Central States Conference on the Teaching of Foreign Languages (Milwaukee, Wisconsin, April 3-5, 1986).

    ERIC Educational Resources Information Center

    Snyder, Barbara, Ed.

    A collection of papers on second language instruction includes: "The Immersion Approach: Principle and Practice" (Helena Anderson Curtain); "Authentic Camera-Produced Materials for Random-Access Video Delivery" (Francis Lide, Barbara Lide); "Listening: What's Really Going on in the Classroom?" (Donna Reseigh Long); "Listening and Learning:…

  10. Teaching about Catholic-Jewish Relations: Some Guidelines to Assist the Work of Teachers in Catholic Schools

    ERIC Educational Resources Information Center

    Jardine, Clare

    2015-01-01

    In this journal, "International Studies in Catholic Education" Vol 5. No 2. October 2013, Dr. Helena Miller of the United Jewish Israel Appeal in London argued the need to develop a dialogue between Jewish and Catholic educators. This article is offered as one response to that call. Suggestions are proposed in terms of fundamental…

  11. ZERO-VALENT IRON PRB APPLICATION EXPANDS TO ARSENIC REMOVAL

    EPA Science Inventory

    The U.S. EPA Office of Research and Development’s National Risk Management Research Laboratory (NRMRL) and Region 8 have begun evaluating performance of a pilot-scale permeable reactive barrier (PRB) to treat arsenic-contaminated ground water at the ASARCO Superfund near Helena, ...

  12. Toward a Borderlands Ethics: The Undocumented Migrant and Haunted Communities in Contemporary Chicana/o Fiction

    ERIC Educational Resources Information Center

    Ramirez, Pablo A.

    2010-01-01

    By reading Helena Maria Viramontes's "Cariboo Cafe" and Daniel Chacon's "Godoy Lives," this essay argues that Chicana/o fiction articulates what I call a "borderlands ethics." Both Viramontes and Chacon give the undocumented migrant the power to merge the United States and Latin America, self and other, citizen and…

  13. Representations of Mexican American Migrant Childhood in Rivera's "...y no se lo trago la tierra" and Viramontes's "Under the Feet of Jesus"

    ERIC Educational Resources Information Center

    Beck, Scott A.; Rangel, Dolores E.

    2009-01-01

    This article gives an analysis of two books: Thomas Rivera's "...y no se lo trago la tierra" and Helena Maria Viramontes's "Under the Feet of Jesus". The two books are strong and important literary texts that stand in close relation to each other. Both texts treat the subject of migrant childhood by affirming central themes of Chicano literature.…

  14. 40 CFR 52.1375 - Control strategy: Lead.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 4 2013-07-01 2013-07-01 false Control strategy: Lead. 52.1375 Section...) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS (CONTINUED) Montana § 52.1375 Control strategy: Lead. Determination—EPA has determined that the East Helena Lead nonattainment area has attained the lead...

  15. 40 CFR 52.1375 - Control strategy: Lead.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 4 2012-07-01 2012-07-01 false Control strategy: Lead. 52.1375 Section...) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS (CONTINUED) Montana § 52.1375 Control strategy: Lead. Determination—EPA has determined that the East Helena Lead nonattainment area has attained the lead...

  16. 40 CFR 52.1375 - Control strategy: Lead.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 4 2011-07-01 2011-07-01 false Control strategy: Lead. 52.1375 Section...) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS (CONTINUED) Montana § 52.1375 Control strategy: Lead. Determination—EPA has determined that the East Helena Lead nonattainment area has attained the lead...

  17. 40 CFR 52.1375 - Control strategy: Lead.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 4 2014-07-01 2014-07-01 false Control strategy: Lead. 52.1375 Section...) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS (CONTINUED) Montana § 52.1375 Control strategy: Lead. Determination—EPA has determined that the East Helena Lead nonattainment area has attained the lead...

  18. 78 FR 44538 - Caribbean Fishery Management Council; Public Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-24

    ... Fishery Management Council, 270 Mu oz Rivera Avenue, Suite 401, San Juan, Puerto Rico 00918; telephone... Velazquez and Helena Antoun Don't Stop Talking Fish Video for the USVI--Lia Ortiz, Franklin Fullock and... Avenue, Suite 401, San Juan, Puerto Rico, 00918, telephone (787) 766-5926, at least 5 days prior to...

  19. 77 FR 58902 - Louisiana Disaster #LA-00049

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    .../13/2012. Economic Injury (EIDL) Loan Application Deadline Date: 06/12/2013. ADDRESSES: Submit... Helena, Saint James, Saint Mary, Saint Tammany, Tangipahoa, Terrebonne, Washington. The Interest Rates... Non-Profit Organizations Without Credit Available Elsewhere 3.000 For Economic Injury:...

  20. Multiply Math Skills with Literature. Literature Letter.

    ERIC Educational Resources Information Center

    Stoodt, Barbara D.

    1995-01-01

    This column discusses five children's books selected to develop math concepts involving problem solving, reasoning, and communication. The books are "Only One" (Marc Harshman); "The Librarian Who Measured the Earth" (Kathryn Lasky); "Counting Jennie" (Helena C. Pittman); "The Search for Delicious" (Natalie Babbitt); and "The Toothpaste…

  1. 77 FR 57032 - Suspension of Community Eligibility

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-17

    ... May 23, 1975, Emerg; ...... do Do. Lewis and Clark County. June 4, 1980, Reg; September 19, 2012, Susp. Helena, City of, Lewis 300040 May 6, 1975, Emerg; ...... do Do. and Clark County. April 15, 1981, Reg; September 19, 2012, Susp. Lewis and Clark County, 300038 August 26, 1975, ...... do Do. Unincorporated...

  2. Microbial Activity In The Peerless Jenny King Sulfate Reducing Bioreactors System

    EPA Science Inventory

    The Peerless Jenny King treatment system is a series of four sulfate reducing bioreactor cells installed to treat acid mine drainage in the Upper Tenmile Creek Superfund Site located in the Rimini Mining District, near Helena, MT. The system consists of a wetland pretreatment fo...

  3. Microbial Activity In The Peerless Jenny King Sulfate Reducing Bioreactor System (Presentation)

    EPA Science Inventory

    The Peerless Jenny King treatment system is a series of four sulfate reducing bioreactor cells installed to treat acid mine drainage in the Upper Tenmile Creek Superfund Site located in the Rimini Mining District, near Helena MT. The system consists of a wetland pretreatment fol...

  4. Screening cut-stump control of Chinese tallowtree, sweetgum and yaupon with aminocyclopyrachlor

    Treesearch

    J. L. Yeiser; M. Link; J. Grogan

    2012-01-01

    Aminocyclopyrachlor (MAT28) was investigated for the potential control of unwanted woody rootstocks of Chinese tallowtree (Triadica sebifera), sweetgum (Liquidambar styraciflua), and yaupon (Ilex vomitoria). A cutstump application of MAT28+Brush and Basal Oil by Helena was tested against standard treatments: (1)...

  5. Multiply Math Skills with Literature. Literature Letter.

    ERIC Educational Resources Information Center

    Stoodt, Barbara D.

    1995-01-01

    This column discusses five children's books selected to develop math concepts involving problem solving, reasoning, and communication. The books are "Only One" (Marc Harshman); "The Librarian Who Measured the Earth" (Kathryn Lasky); "Counting Jennie" (Helena C. Pittman); "The Search for Delicious" (Natalie Babbitt); and "The Toothpaste…

  6. Kiddie Algebra

    ERIC Educational Resources Information Center

    Cavanagh, Sean

    2009-01-01

    As educators and policymakers search for ways to prepare students for the rigors of algebra, teachers in the Helena, Montana, school system are starting early by attempting to nurture students' algebraic-reasoning ability, as well as their basic number skills, in early elementary school, rather than waiting until middle or early high school.…

  7. ZERO-VALENT IRON PRB APPLICATION EXPANDS TO ARSENIC REMOVAL

    EPA Science Inventory

    The U.S. EPA Office of Research and Development’s National Risk Management Research Laboratory (NRMRL) and Region 8 have begun evaluating performance of a pilot-scale permeable reactive barrier (PRB) to treat arsenic-contaminated ground water at the ASARCO Superfund near Helena, ...

  8. 33 CFR 334.290 - Elizabeth River, Southern Branch, Va., naval restricted areas.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334... Area. Beginning at a point at St. Helena Annex of the Norfolk Naval Shipyard, on the eastern shore of... channel to latitude 36°49′28″, longitude 76°17′27″; thence easterly to the shore at latitude...

  9. 33 CFR 334.290 - Elizabeth River, Southern Branch, Va., naval restricted areas.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334... Area. Beginning at a point at St. Helena Annex of the Norfolk Naval Shipyard, on the eastern shore of... channel to latitude 36°49′28″, longitude 76°17′27″; thence easterly to the shore at latitude...

  10. Halley, Edmond (1656-1742)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Astronomer and scientist, born in Hagerston, Shoreditch (near London), became professor at Oxford and second Astronomer Royal at the Royal Observatory, Greenwich. From the island of St Helena, he cataloged the positions of about 350 southern hemisphere stars (Catalogus Stellarum Australium), including his own discovery of the globular cluster Omega Centauri; he also discovered the globular cluste...

  11. Occurrences of the western skink (Eumeces skiltonianus) in grasslands of western Montana

    Treesearch

    Yvette K. Ortega; Dean E. Pearson

    2001-01-01

    The western skink (Eumeces skiltonianus) was recently classified as a Montana Species of Special Concern due to its restricted range in the state (D. P. Hendricks, Montana Natural Heritage Program, Helena, MT, pers. comm.). Records of the western skink in Montana are limited to a few, scattered locations on the western edge of the state (Tanner 1988; Reichel...

  12. 27 CFR 9.209 - Calistoga.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... Geological Survey 1:24,000 scale topographic quadrangle maps. They are titled: (1) Mark West Springs, Calif. (1993); (2) Calistoga, CA (1997); (3) St. Helena, Calif. (1960, revised 1993); and (4) Detert Reservoir... intersection with the R7W/R6W range line in section 30, T9N/R6W; (12) Continues northerly along the meandering...

  13. 27 CFR 9.209 - Calistoga.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... Geological Survey 1:24,000 scale topographic quadrangle maps. They are titled: (1) Mark West Springs, Calif. (1993); (2) Calistoga, CA (1997); (3) St. Helena, Calif. (1960, revised 1993); and (4) Detert Reservoir... intersection with the R7W/R6W range line in section 30, T9N/R6W; (12) Continues northerly along the meandering...

  14. Microbial Activity In The Peerless Jenny King Sulfate Reducing Bioreactors System

    EPA Science Inventory

    The Peerless Jenny King treatment system is a series of four sulfate reducing bioreactor cells installed to treat acid mine drainage in the Upper Tenmile Creek Superfund Site located in the Rimini Mining District, near Helena, MT. The system consists of a wetland pretreatment fo...

  15. Microbial Activity In The Peerless Jenny King Sulfate Reducing Bioreactor System (Presentation)

    EPA Science Inventory

    The Peerless Jenny King treatment system is a series of four sulfate reducing bioreactor cells installed to treat acid mine drainage in the Upper Tenmile Creek Superfund Site located in the Rimini Mining District, near Helena MT. The system consists of a wetland pretreatment fol...

  16. Appendix: Assessment of watershed vulnerability to climate change - Pilot National Forest reports

    Treesearch

    Michael J. Furniss; Ken B. Roby; Dan Cenderelli; John Chatel; Caty F. Clifton; Alan Clingenpeel; Polly E. Hays; Dale Higgins; Ken Hodges; Carol Howe; Laura Jungst; Joan Louie; Christine Mai; Ralph Martinez; Kerry Overton; Brian P. Staab; Rory Steinke; Mark. Weinhold

    2013-01-01

    Assessment of watershed vulnerability to climate change. Pilot National Forest reports: Gallatin National Forest, Helena National Forest, Grand Mesa, Uncompahgre, and Gunnison National Forests, White River National Forest, Coconino National Forest, Sawtooth National Forest, Shasta-Trinity National Forest, Umatilla National Forest, Umatilla National Forest, Ouachita...

  17. Languages in Elementary Schools. International Education Series.

    ERIC Educational Resources Information Center

    Muller, Kurt E., Ed.

    Ten essays address aspects of second language instruction at the elementary school level: "Elementary School Foreign Languages: Perspectives, Practices, and Promises" (Carol Ann Pesola, Helena Anderson Curtain); "The Integrated Curriculum: Rethinking the Elementary School Foreign Language Program for the '90s" (Virginia…

  18. DEPLOY: An Interactive Goal Programming Model for the Rapid Deployment of Armed Forces.

    DTIC Science & Technology

    1984-12-06

    34offload history 13 Periodic reports reflecting aircraft and cargo p status by location or various time intervals 14. Standard 0-GERT output...operating envelopes as movement requirements and policies. The output generated is the raw form of "mi ssion it ineraries, requirement histories , GASP...MISCEL ANEUS U S DATA’ S ET LP THE SUBHE.’D IGS UNLE S N S A O. .ND I U,. S , U B ’ FROM US .: SUBH 2)=’ FROM CORPS:’ SUSHI , 2.:= PERIOD I" SUH (4

  19. Sources of oceanic basalts: radiogenic isotopic evidence

    SciTech Connect

    White, W.M.

    1985-02-01

    Oceanic basalts can be subdivided into five distinct groupings on the basis of their Sr, Nd, and Pb isotope composition. These classes, represented by mid-ocean ridge basalts (MORB) and St. Helena, Kerguelen, the Society Islands, and the Hawaiian Islands, may represent different but internally heterogeneous mantle reservoirs or merely distinct groups within which chemical evolution has proceeded in a similar manner. Little systematic geographic distribution of volcanism tapping these sources is apparent. Depletion has been most important in the evolution of the MORB-type reservoirs, whereas crustal recycling has dominated the evolution of sources of the Kerguelen and Society types. Primitive mantle is identifiable in the Sr, Nd, Hf, and Pb isotope characteristics of the Hawaiian source only. The evolution of St. Helena-type sources remains enigmatic. 33 references, 2 figures.

  20. Complete Bouguer gravity and aeromagnetic maps of the Rattlesnake Roadless Area, Missoula County, Montana

    USGS Publications Warehouse

    Kulik, Dolores M.

    1986-01-01

    The rocks in the study area consist mainly of the Helena Formation and the Missoula Group of the Belt Supergroup (Proterozoic Y).  Rock units of less importance are diabase sills and dikes of probable Proterozoic Z age, Middle Cambrian rocks, and glacial deposits.  Structurally, the study area consists of the Rattlesnake thrust system in the south part and a parautochthonous area broken by vertical faults in the north part.

  1. The Magnetic Observatory Buildings at the Royal Observatory, Cape

    NASA Astrophysics Data System (ADS)

    Glass, I. S.

    2015-10-01

    During the 1830s there arose a strong international movement, promoted by Carl Friedrich Gauss and Alexander von Humboldt, to characterise the earth's magnetic field. By 1839 the Royal Society in London, driven by Edward Sabine, had organised a "Magnetic Crusade" - the establishment of a series of magnetic and meteorological observatories around the British Empire, including New Zealand, Australia, St Helena and the Cape. This article outlines the history of the latter installation, its buildings and what became of them.

  2. 18 CFR Appendix A to Part 11 - Fee Schedule for FY 2009

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... Allamakee $34.66 Iowa Appanoose $23.10 Iowa Audubon $34.66 Iowa Benton $46.21 Iowa Black Hawk $69.31 Iowa... $115.52 Louisiana St. Charles $115.52 Louisiana St. Helena $46.21 Louisiana St. James $34.66 Louisiana St. John the Baptist $69.31 Louisiana St. Landry $34.66 Louisiana St. Martin $34.66 Louisiana St...

  3. 78 FR 15602 - Annual Update to Fee Schedule for the Use of Government Lands by Hydropower Licensees

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-12

    .... Helena 79.93 St. James 68.22 St. John the Baptist.. 75.65 St. Landry 51.62 St. Martin 63.23 St. Mary 58... 77.52 Appanoose 60.10 Audubon 96.56 Benton 100.46 Black Hawk 108.53 Boone 104.58 Bremer 110.17....13 James City 231.30 King and Queen........ 99.58 King George 115.61 King William 105.94 Lancaster...

  4. Classifying Failing States

    DTIC Science & Technology

    2007-03-01

    Akrotiri Greenland Saint Helena American Samoa Guadeloupe Saint Pierre and Miquelon British Virgin Islands Holy See South Georgia Channel Islands...Rights Tuberculosis death rate per 100,000 population Share of women in wage employment in the non- agricultural sector Pupil-teacher ratio, primary... Agricultural production index, 1999-2001=100 Carbon dioxide emissions (CO2), metric tons of CO2 per capita (CDIAC) Enrolment in total secondary. Public

  5. More physically active and leaner adolescents have higher energy intake.

    PubMed

    Cuenca-García, Magdalena; Ortega, Francisco B; Ruiz, Jonatan R; Labayen, Idoia; Moreno, Luis A; Patterson, Emma; Vicente-Rodríguez, Germán; González-Gross, Marcela; Marcos, Ascensión; Polito, Angela; Manios, Yannis; Beghin, Laurent; Huybrechts, Inge; Wästlund, Acki; Hurtig-Wennlöf, Anita; Hagströmer, Maria; Molnár, Dénes; Widhalm, Kurt; Kafatos, Anthony; De Henauw, Stefaan; Castillo, Manuel J; Gutin, Bernard; Sjöström, Michael

    2014-01-01

    To test whether youths who engage in vigorous physical activity are more likely to have lean bodies while ingesting relatively large amounts of energy. For this purpose, we studied the associations of both physical activity and adiposity with energy intake in adolescents. The study subjects were adolescents who participated in 1 of 2 cross-sectional studies, the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study (n = 1450; mean age, 14.6 years) or the European Youth Heart Study (EYHS; n = 321; mean age, 15.6 years). Physical activity was measured by accelerometry, and energy intake was measured by 24-hour recall. In the HELENA study, body composition was assessed by 2 or more of the following methods: skinfold thickness, bioelectrical impedance analysis, plus dual-energy X-ray absorptiometry or air-displacement plethysmography in a subsample. In the EYHS, body composition was assessed by skinfold thickness. Fat mass was inversely associated with energy intake in both studies and using 4 different measurement methods (P ≤ .006). Overall, fat-free mass was positively associated with energy intake in both studies, yet the results were not consistent across measurement methods in the HELENA study. Vigorous physical activity in the HELENA study (P < .05) and moderate physical activity in the EYHS (P < .01) were positively associated with energy intake. Overall, results remained unchanged after adjustment for potential confounding factors, after mutual adjustment among the main exposures (physical activity and fat mass), and after the elimination of obese subjects, who might tend to underreport energy intake, from the analyses. Our data are consistent with the hypothesis that more physically active and leaner adolescents have higher energy intake than less active adolescents with larger amounts of fat mass. Copyright © 2014 Mosby, Inc. All rights reserved.

  6. Chronostratigraphic and paleoclimatic data for Quaternary loessial and fluvial deposits in the Mississippi River Valley of Arkansas and Tennessee

    SciTech Connect

    Markewich, H.W. ); Millard, H.T. Jr. ); Pavich, M.J. ); Rodbell, D.T. ); Rich, F.J. ); Rutledge, E.M. ); Ward, L. . Soil Conservation Service); Van Valkenberg, S. ); Wysocki, D. . Soil Conservation Service)

    1992-01-01

    Ongoing investigations into Quaternary paleoclimates of the Mississippi River Valley in eastern Arkansas and western Tennessee include age estimations using [sup 14]C, [sup 10]Be, thermoluminescent (TL), and optically stimulated luminescent (OSL) analyses; compositional studies using petrographic and diffractometer analyses; pedological analyses with complete characterization studies; and magnetic susceptibility measurements with laboratory analyses to investigate the source of the magnetism. Preliminary data on composition of the < 63-micron fraction, thickness, and age of the loesses and associated paleosols are available from selected stratigraphic sections that are being described and sampled in detail. These data suggest the following: (1) overall thickness of loess, as well as thickness of each loess sheet, decreases by one-half to two-thirds within the 96-km distance from the south end of Crowleys Ridge near Helena, AR northward to Forest City, AR and Memphis, TN; (2) near Helena, loess thicknesses are 25 to 30 m, 7 m, 6 m, and 6 m for the Peoria, Roxana, Loveland, and Crowleys Ridge respectively; (3) the depth of weathering in the Peoria ranges from 4.5 to 8.5 m near Helena, depending on slope position; (4) at the south end of Crowleys Ridge, near Helena, the Roxana has two associated paleosols and an intervening layer of weathered parent material; (5) isotopic data suggest that (a) loess deposition took place between 4,500 ka and 10 ka and that (b) each younger disconformity represents less time than the one before; (6) the predominantly illite and illite/smectite mineralogy of the paleosols, even that of the Sangamon soil, suggests minimal weathering of labile loessial minerals prior to pedogenic development; (7) pollen data indicate that by 10 ka this part of the valley had vegetation indicative of a cool temperate climate, with minimal cypress and no boreal components.

  7. Maskelyne, Nevil (1732-1811)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Astronomer Royal, born in London, England, his interest in astronomy had begun after seeing the eclipse of 1748. After a mathematics education at Cambridge, he was sent by the Royal Society in 1761 to St Helena to observe the transit of Venus. In 1764 he traveled to Barbados, testing JOHN HARRISON's chronometer, and was appointed Astronomer Royal on his return. He initiated publication of the Nau...

  8. Physical Activity Attenuates the Effect of Low Birth Weight on Insulin Resistance in Adolescents

    PubMed Central

    Ortega, Francisco B.; Ruiz, Jonatan R.; Hurtig-Wennlöf, Anita; Meirhaeghe, Aline; González-Gross, Marcela; Moreno, Luis A.; Molnar, Dénes; Kafatos, Anthony; Gottrand, Frederic; Widhalm, Kurt; Labayen, Idoia; Sjöström, Michael

    2011-01-01

    OBJECTIVE To examine whether physical activity influences the association between birth weight and insulin resistance in adolescents. RESEARCH DESIGN AND METHODS The study comprised adolescents who participated in two cross-sectional studies: the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study (n = 520, mean age = 14.6 years) and the Swedish part of the European Youth Heart Study (EYHS) (n = 269, mean age = 15.6 years). Participants had valid data on birth weight (parental recall), BMI, sexual maturation, maternal education, breastfeeding, physical activity (accelerometry, counts/minute), fasting glucose, and insulin. Insulin resistance was assessed by homeostasis model assessment–insulin resistance (HOMA-IR). Maternal education level and breastfeeding duration were reported by the mothers. RESULTS There was a significant interaction of physical activity in the association between birth weight and HOMA-IR (logarithmically transformed) in both the HELENA study and the EYHS (P = 0.05 and P = 0.03, respectively), after adjusting for sex, age, sexual maturation, BMI, maternal education level, and breastfeeding duration. Stratified analyses by physical activity levels (below/above median) showed a borderline inverse association between birth weight and HOMA-IR in the low-active group (standardized β = −0.094, P = 0.09, and standardized β = −0.156, P = 0.06, for HELENA and EYHS, respectively), whereas no evidence of association was found in the high-active group (standardized β = −0.031, P = 0.62, and standardized β = 0.053, P = 0.55, for HELENA and EYHS, respectively). CONCLUSIONS Higher levels of physical activity may attenuate the adverse effects of low birth weight on insulin sensitivity in adolescents. More observational data, from larger and more powerful studies, are required to test these findings. PMID:21752955

  9. Draft Environmental Impact Statement: Second KC-135R Air Refueling Squadron, Malmstrom Air Force Base, Montana

    DTIC Science & Technology

    1989-05-01

    Labor and Industry , Research and Analysis Bureau, Helena. 1988b Montana Air Quality Data and Information Summary for 1987. Department of Health and...employment and earnings by major industrial sectors and on personal i and on personal income published by the US Bureau of Economic Analysis were obtained...force and unemployment was provided by the Montana Department of Labor and Industry , Research and Analysis Bureau (1986). Information on key industries

  10. Underwater Cultural Resources Survey for Contraction Dikes at Red Eye Crossing, Mississippi River, Baton Rouge to the Gulf of Mexico, Louisiana

    DTIC Science & Technology

    1993-06-01

    the project vicinity: Philip Hickey (son of Daniel Hickey) and George Mathers, Sr. These two men were trusted friends of Governor de Lassus, who sent...divided into the parishes of East Baton Rouge, Feliciana, Saint Helena, and Saint Tammany. Claibome appointed George Mather district judge for Baton Rouge...survey listed many of the same claimant names noted on the ca. 1810 Spanish survey, including Philip and Daniel Hickey, George Mather, and the

  11. Abdominal obesity and its association with socioeconomic factors among adolescents from different living environments.

    PubMed

    Costa de Oliveira Forkert, E; de Moraes, A C F; Carvalho, H B; Kafatos, A; Manios, Y; Sjöström, M; González-Gross, M; Gottrand, F; Beghin, L; Censi, L; Kersting, M; Moreno, L A

    2017-04-01

    Socioeconomic status has been associated with obesity in children and adolescents. This association may be dependent according with where adolescents lives. The aim of this study was to evaluate the association between different socioeconomic indicators such as parental education and occupation and socioeconomic status with abdominal obesity in adolescents from two observational studies: the Healthy Lifestyle in Europe by Nutrition in Adolescence cross-sectional study (HELENA-CSS) and the Brazilian Cardiovascular Adolescent Health (BRACAH) study. European (n = 3192, aged 12.5-17.5 years, with 53.1% girls from HELENA-CSS) and Brazilian (n = 991, aged 14-18 years, with 54.5% girls from BRACAH study) adolescents from two cross-sectional studies were included in this analysis. Complete data on waist circumference (WC), height, socioeconomic status indicators and several confounders were collected. Socioeconomic indicators were measured using a self-reported questionnaire in order to assess the family social status of the adolescents. Multilevel linear regression models were used to examine associations, and results were adjusted for potential confounders. Adjusted results showed inverse associations between mother's and father's education levels (p < 0.001) and father's occupation level (p < 0.001) with waist-to-height ratio (WHtR) and WC in HELENA-CSS girls. Similarly in European girls, socioeconomic indicators by socioeconomic status and maternal occupation level were associated with WHtR. In HELENA-CSS boys, the same significant association was found between WHtR and WC with maternal occupation level. Moreover, in European boys WHtR was also associated with parental education. In Brazilian adolescents, both indicators of abdominal obesity did not remain associated with the independents variables, after adjustment for potential confounders. Abdominal obesity was associated with socioeconomic indicators in higher-income countries, but this

  12. Environmental Assessment. Weapons and Munitions Maintenance and Storage Complex

    DTIC Science & Technology

    2001-04-01

    public welfare by preventing injury to agricultural crops and livestock , deterioration of materials and property, and adverse impacts on the environment...and Yellowstone • National Wilderness Areas: Anaconda-Pintler, Bob Marshall, Cabinet Mountains, Gates of the Mountains, Medicine Lake, Mission...through western Montana from near Yellowstone Park to the Flathead Lake region (MBMG, 2000a). The closest fault to the base is the Helena Valley

  13. Echinostoma revolutum: Freshwater Snails as the Second Intermediate Hosts in Chiang Mai, Thailand

    PubMed Central

    Chantima, Kittichai; Chai, Jong-Yil

    2013-01-01

    The occurrence of 37-collar spined echinostome metacercariae in freshwater snails was investigated in 6 districts of Chiang Mai Province, Thailand, from October 2011 to April 2012. A total of 2,914 snails that belong to 12 species were examined, and 7 snail species (Clea helena, Eyriesia eyriesi, Bithynia funiculata, Bithynia siamensis siamensis, Filopaludina doliaris, Filopaludina sumatrensis polygramma, and Filopaludina martensi martensi) were found infected with echinostome metacercariae. The prevalence of metacercariae was the highest in Filopaludina spp. (38.5-58.7%) followed by B. funiculata (44.0%), E. eyriesi (12.5%), B. siamensis siamensis (8.2%), and C. helena (5.1%). Metacercariae were experimentally fed to hamsters and domestic chicks, and adult flukes were recovered from both hosts at days 15 and 20 post-infection. The adult flukes were identified based on morphological features, morphometrics, host-parasite relationships, and geographical distribution. They were compatible to Echinostoma revolutum or Echinostoma jurini, with only minor differences. As the adults were recovered from both hamsters and chicks, our specimens were more compatible to E. revolutum rather than E. jurini (reported only from mammals). This is the first report for metacercariae of E. revolutum in the snail host, C. helena, and also confirmed that Filopaludina spp., E. eryresi, and Bithynia spp. act as the second intermediate hosts of E. revolutum under natural conditions, which are indigenously distributed in Chiang Mai province. PMID:23710085

  14. Consumption of dairy products in youth, does it protect from cardio-metabolic risk?

    PubMed

    Santaliestra-Pasías, Alba M; Bel-Serrat, Silvia; Moreno, Luis A; Bueno, Gloria

    2016-07-12

    Introduction: The high prevalence of obesity in children and adolescents is considered as a major global health concern and involves the onset of other comorbidities such as hypertension, dyslipidemia, chronic infl ammation and hyperinsulinemia, which are also considered as cardiovascular diseases risk factors. Several studies have observed that consumption of dairy products has a protective role on the development of cardiovascular diseases; however, the scientific evidence on this topic is very limited among children and adolescents. Objectives: To investigate the association between dairy products consumption and cardiovascular risk factors in young populations. Material and methods: The most up-to-date literature was reviewed, including some data from the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study. A sample of adolescents (12.5-17.5 years) from 8 European cities was considered for the analysis. Results: US data showed a decrease in both number of servings and portion sizes of milk consumption. Within the HELENA study, dairy products emerged as the food group that better distinguished those adolescents at lower cardiovascular diseases risk. Among the HELENA adolescents, higher consumption of milk, yogurt and milk- and yogurt-based beverages was associated with lower body fat, lower risk for cardiovascular diseases, and higher cardiorespiratory fitness. Conclusions: More studies are needed to provide more evidence and to better understand the intrinsic mechanisms of the association between dairy products consumption, especially yogurt consumption, and obesity, diabetes, and other cardiovascular diseases risk factors.

  15. Mesoproterozoic juvenile mafic-ultramafic magmatism in the SW Amazonian Craton (Rio Negro-Juruena province): SHRIMP U-Pb geochronology and Nd-Sr constraints of the Figueira Branca Suite

    NASA Astrophysics Data System (ADS)

    Teixeira, Wilson; Geraldes, Mauro C.; D'Agrella-Filho, Manoel S.; Santos, João O. S.; Sant'Ana Barros, Márcia A.; Ruiz, Amarildo S.; Corrêa da Costa, Paulo C.

    2011-12-01

    The Figueira Branca Suite (FBS) comprises a layered mafic-ultramafic complex which together with mafic-felsic plugs makes up a string of NW-trending intrusive bodies that are emplaced into the Jauru domain (Rio Negro-Juruena province; 1.80-1.60 Ga). This domain comprises Orosirian calc-alkaline rocks and coeval metamorphic volcanic-sedimentary associations, intruded by voluminous granitoid plutons resulted from outboard Cachoeirinha (1587-1522 Ma) and Santa Helena (1485-1420 Ma) accretionary orogens that eventually created the Rondonian-San Ignacio province along the SW margin of the proto-Amazonian Craton. SHRIMP U-Pb age in zircon for one cumulatic gabbro from the FBS yielded a concordia intercept age of 1425.5 ± 8.0 Ma (MSWD = 1.11). Another gabbroic plug which crops out to the East gives a similar within error concordia intercept zircon age of 1415.9 ± 6.9 Ma (MSWD = 0.25), whereas a nearby monzogranite yields a concordia intercept zircon age of 1428.9 ± 2.8 Ma (MSWD = 1.30). All these results are crystallization ages and constrain an important intraplate magmatic event within the Orosirian continental crust at the time of outboard Santa Helena orogen. On the other hand, igneous titanite from another gabbro located to the West of the FBS yielded a weighted mean 207Pb/ 206Pb crystallization age of 1541 ± 23 Ma (MSWD = 0.74). Therefore this rock is not genetically associated with the FBS, as previously suggested by the field information. Additional Nd-Sr isotopic analyses of the FBS mafic-ultramafic rocks and coeval gabbro showed comparable ɛNd(1.42Ga) values (+3.0 to +4.7) and variable ɛSr(1.42Ga) ones (-39.1 to -8.1). These data plot in the depleted field quadrant of the Nd-Sr diagram, indicating a significant influence of the MORB end-member reservoir in the magma genesis. This interpretation is similarly supported by comparison of the Nd evolutionary path of the FBS with those that characterize the isotopic evolution of the Jauru crust and the

  16. A Journal of travel of an astrophysicist

    NASA Astrophysics Data System (ADS)

    Gaina, Alex B.

    2015-06-01

    The authors is descibing personal impressions from a number of scientific conferences took between 1993 and 1998 in Trieste (ICTP,with the participation of 2 Nobel Laureats Winners: Professor Abdus Salam (1926-1996) and Professor Gert t'Hooft), Catania astrophysical Observatory and University (1995-JENAM 1995), Athens Observatory and University (1996-Wide Field Spectroscopy), Prague Technicke Museum (1996- Symposium "Mysterium Cosmographicum"),Prague technical University (1998 -JENAM 1998),which in fact contained also a trip to Nicolaus Copernicus Astronomical Center in Torun (Poland). Besides,some details on trips through Ukraine, Poland, Serbia, where a kind meeting with astronomers from Belgrade took place in 1995, former Yugoslav Countries: Monetnegro, Slovenija and Croatia, Bulgaria, where another meeting with physicists from the Academy of Sciences of Bulgaria took place has been given also.

  17. Operations planning with VERT.

    PubMed

    Moeller, G L; Digman, L A

    1981-01-01

    The Venture Evaluation and Review Technique (VERT) is a computerized, mathematically oriented network-based simulation technique designed to analyze risk existing in three parameters of most concern to managers in new projects or ventures--time, cost, and performance. As such, the VERT technique is more powerful than techniques such as GERT, which are basically time and cost oriented. VERT has been successfully utilized to assess the risks involved in new ventures and projects, in the estimation of future capital requirements, in control monitoring, and in the overall evaluation of ongoing projects, programs, and systems. It has been helpful to management in cases where there is a requirement to make decisions with incomplete or inadequate information about the alternatives. An example describing the application of VERT to an operational planning problem--the evaluation of electric power generating methods--is illustrated.

  18. A model for evaluation of satellite population management alternatives

    NASA Astrophysics Data System (ADS)

    Penny, R. E., Jr.; Jones, R. K.

    1983-12-01

    A Q-GERT model was developed to simulate the satellite environment, including the untracked man-made population, and to calculate a probability of collision for any satellite of interest. Provision for launches, explosions, collisions (including ASAT), retrieval, reposition, and decay was made. The model is structured to easily vary the rates at which these activities occur and to observe changes in the satellite population through which a satellite of interest must travel. Variance of the rates, and the resultant change in probability of collision allows evaluation of satellite population management alternatives such as reducing launch rates or increasing retrieval of spent, but still capable of exploding, satellites. The model is proposed for use by both the USAF SPACE COMMAND and NASA.

  19. On risk and decisional capacity.

    PubMed

    Checkland, D

    2001-02-01

    Limits to paternalism are, in the liberal democracies, partially defined by the concepts of decision-making capacity/incapacity (mental competence/incompetence). The paper is a response to Ian Wilks's (1997) recent attempt to defend the idea that the standards for decisional capacity ought to vary with the degree of risk incurred by certain choices. Wilks's defense is based on a direct appeal to the logical features of examples and analogies, thus attempting to by-pass earlier criticisms (e.g., Culver & Gert, 1990) of risk-based standards. Wilks's argument is found wanting on the grounds that he misconstrues the logic of such capacity, especially in accounting for conceptual and pragmatic ties with issues of decisional authority. A diagnosis is offered as to the source of Wilks's error (the assumption that mental competence is a species of wider genus of "competence"), and an alternative way of accounting for risk within the predominant contemporary legal framework is sketched.

  20. Impact of REV-ERB alpha gene polymorphisms on obesity phenotypes in adult and adolescent samples.

    PubMed

    Goumidi, L; Grechez, A; Dumont, J; Cottel, D; Kafatos, A; Moreno, L A; Molnar, D; Moschonis, G; Gottrand, F; Huybrechts, I; Dallongeville, J; Amouyel, P; Delaunay, F; Meirhaeghe, A

    2013-05-01

    REV-ERBα has been shown to regulate adipogenesis and lipid metabolism as well as to link the circadian timing system to whole body metabolic homeostasis. We thus tested whether polymorphisms in REV-ERBα could be associated with metabolic phenotypes in human population samples. We analyzed the associations between 5 REV-ERBα polymorphisms and anthropometric (body weight, body mass index (BMI), waist and hip circumferences), biochemical (plasma lipid, glucose and insulin levels) and clinical (systolic and diastolic blood pressure) variables in three population-based studies (MONICA Lille n=1155 adults, MONA LISA Lille n=1170 adults and HELENA n=1155 adolescents). We assessed in vitro, the potential influence of one REV-ERBα polymorphism in transient transfection assays using two different cell lines. We observed significant and consistent associations between the T minor allele of the REV-ERBα rs2071427 polymorphism (located in intron 1) and higher BMI (mean allele effect=+0.33 kg m(-2)) in the MONICA Lille (P=0.02), MONA LISA (P=0.02) and HELENA (P=0.03) studies. The odds ratios for obesity associated with this allele were 1.67 (1.00-2.79) (P=0.05) in MONICA Lille, 1.29 (1.01-1.65) (P=0.04) in MONA LISA Lille and the odds ratio for overweight was 1.48 (1.08-2.03) (P=0.01) in HELENA. In transfection experiments in human hepatocyte-derived cell lines, the REV-ERBα intron 1 directed the transcription of a luciferase reporter gene independently of the rs2071427 polymorphism. Our results suggest that the REV-ERBα rs2071427 polymorphism modulates body fat mass in both adult and young people.

  1. Helium- and lead-isotope geochemistry of oceanic volcanic rocks from the East Pacific and South Atlantic. Doctoral thesis

    SciTech Connect

    Graham, D.W.

    1987-01-01

    Glassy basalts erupted at young Pacific seamounts and along the mid-ocean ridge in the South Atlantic, and volcanic rocks from the island of St. Helena were studied for He and Pb isotopes. (U+TH)/He ages of seamount alkali basalts were determined from the isotope disequilibrium of (3)He/(4)He between He trapped in vesicles and that dissolved in the glass phase. The method allows alkalic lavas to be dated in the age range of 103 to 106 years. Tholclites at the EPR seamounts have He, Pb, Sr and Nd isotope compositions indistinguishable from MORB, while associated alkali basalts show more radiogenic signatures. The low (3)He/(4)He in the vesicles of alkali basalts (1.2-2.6 RA), their low helium concentrations, and systematic variations with extent of differentiation suggest that magmatic processes influence (3)He/(4)He in these alkalic lavas. Pb-Sr-Nd isotopes at Shimada seamount (17 deg N, 117 deg W) indicate the presence of enriched mantle beneath the East Pacific which resembles that beneath Samoa. Low (3)He/(4)He (4-5 RA) appears to be an inherent characteristic of the component. Much of the South Atlantic ridge axis displays (3)He/(4)He lower than normal MORB, and is apparently contaminated by off-axis hotspots. He-Pb systematics along the ridge suggest that (3)He/(4)He at St. Helena is less than MORB, consistent with values measured by in vacuo crushing of olivine and pyroxene in St. Helena rocks (approx. 5.8 RA).

  2. Evolution and stratigraphy of a sandy tidal-flat complex within a Mesotidal embayment

    SciTech Connect

    McCants, C.Y.; Zarillo, G.A.

    1985-02-01

    Sand-dominated intertidal environments in St. Helena Sound, South Carolina, a mesotidal estuarine system, can be divided into a continuum of barlike deposits dominated by tidal flows and sheetlike deposits of sandy tidal flats that are influenced by both waves and currents. A large sand flat attached to a marsh-island complex in the central interior of St. Helena Sound resembles a large flood-tidal delta and has been reworked by waves and migrating ebb-dominated tidal channels. The lower tidal flat (flood ramp) is composed of coarse to medium sand mixed with shell material. Large-scale planar cross-beds are formed by flood-oriented sand waves. Middle tidal-flat deposits consist of fine to very fine sand where burrowing by intertidal fauna disrupts structures of intermediate to small-scale bed forms generated by both waves and tidal currents. The muddy, fine-grained sands of the upper tidal flat are reworked by wave-generated small-scale ripples and are partially bioturbated. A salt marsh-chenier complex, landward of the upper tidal flat, has prograded over older portions of the sand flat during earlier regressive phases. Evolution of the St. Helena Sound sand flats began with a transgressive phase marked by a transgressive lag deposit dated at 4200 yr B.P., overlying Pleistocene estuarine, mud-flat, and salt-marsh deposits. Sediment for buildup of the sand flats was derived from reworking of surrounding barrier-island sands by migrating tidal channels. Sand was introduced into the lower tidal flat by swash-bar accumulation or strong flood-tidal currents. Building of the sand-flat sequence and development of the overlying salt marsh-chenier complex occurred episodically due to minor fluctuations in sea level. At present, the sand-flat sequence is in a transgressive phase and is being reworked by migrating tidal channels and the seawardmost chenier is subject to frequent overwashing.

  3. Dynamics of oxygen depletion in the nearshore of a coastal embayment of the southern Benguela upwelling system

    NASA Astrophysics Data System (ADS)

    Pitcher, Grant C.; Probyn, Trevor A.; du Randt, Andre; Lucas, Andrew. J.; Bernard, Stewart; Evers-King, Haley; Lamont, Tarron; Hutchings, Larry

    2014-04-01

    Acquisition of high resolution time series of water column and bottom dissolved oxygen (DO) concentrations inform the dynamics of oxygen depletion in St Helena Bay in the southern Benguela upwelling system at several scales of variability. The bay is characterized by seasonally recurrent hypoxia (<1.42 ml l-1) associated with a deep pool of oxygen-depleted water and episodic anoxia (<0.02 ml l-1) driven by the nearshore (<20 m isobath) decay of red tide. Coastal wind forcing influences DO concentrations in the nearshore through its influence on bay productivity and the development of red tides; through shoreward advection of the bottom pool of oxygen-depleted water as determined by the upwelling-downwelling cycle; and through its control of water column stratification and mixing. A seasonal decline in bottom DO concentrations of ˜1.2 ml l-1 occurs with a concurrent expansion of the bottom pool of oxygen depleted water in St Helena Bay. Upwelling of this water into the nearshore causes severe drops in DO concentration (<0.2 ml l-1), particularly during end-of-season upwelling, resulting in a significant narrowing of the habitable zone. Episodic anoxia through the entire water column is caused by localized degradation of red tides within the confines of the shallow nearshore environment. Oxygenation of the nearshore is achieved by ventilation of the water column particularly with the onset of winter mixing. No notable changes are evident in comparing recent measures of bottom DO concentrations in St Helena Bay to data collected in the late 1950s and early 1960s.

  4. Shelf to basin transition in Middle Ordovician carbonates in Alabama Appalachians

    SciTech Connect

    Benson, D.J.

    1986-05-01

    In the Alabama valley and ridge, Middle Ordovician carbonates are exposed in two northeast-southwest-trending outcrop belts separated by the Helena fault. Northwest to southeast transits across these outcrop belts illustrate a well-defined shallow to deep water transition. West of the Helena fault, the Middle Ordovician is represented by a transgressive-regressive sequence of peritidal and shallow subtidal carbonates of the Chickamauga Limestone, deposited in tidal-flat, low-energy open-shelf, and high-energy shoal environments. Tidal-flat deposits consist of peloidal and intraclastic wackestones and packstones containing abundant exposure indicators. These grade into light-colored, skeletal wackestones and packstones containing a diverse faunal assemblage rich in algae, indicating deposition in a shallow, low-energy, open-shelf setting. High energy shoal deposition is represented by a 20-80 ft thick sequence of cross-bedded skeletal grainstone. Included within the grainstone are pods of bryozoan-sponge-algal bafflestone and bindstone that represent small mud-rich bioherms. East of the Helena fault, the Middle Ordovician series consists of deeper water carbonates of the Lenoir and Little Oak Limestones and graptolitic shales of the Athens Formation. The Lenoir and Little Oak are composed of dark-colored, even-bedded, skeletal wackestones which, with the exception of scattered Nuia, lack algae, indicating deposition in the deeper part of the photic zone. These wackestones grade southeastward into very finely laminated, argillaceous mudstones and calcareous shales of the Athens Formation. The Athens is dark colored, organic-rich, lacking in bottom-dwelling fauna, and contains common synsedimentary slump structures suggesting deposition in an anoxic, lower slop environment.

  5. Earth Observations by the Expedition 19 crew

    NASA Image and Video Library

    2009-05-07

    ISS019-E-014918 (7 May 2009) --- Saint Helena Island is featured in this image photographed by an Expedition 19 crewmember on the International Space Station. This isolated island, located in the South Atlantic Ocean approximately 1860 kilometers to the west of the African coastline, is perhaps best known as the final resting place of Napoleon Bonaparte I of France. Bonaparte was exiled to the island following his defeat at the Battle of Waterloo in 1815; he died on the island six years later in 1821. Today, the island is a British Overseas Territory, with access provided thirty times a year by a single ship, the RMS St. Helena. The rugged topography evident in this photograph is the result of erosion of the volcanic rocks that make up the island into sharp peaks and deep ravines. A climatic gradient related to elevation is also evident ? the higher, wetter central portion of the island is covered with green vegetation, whereas the lower coastal areas are drier and hotter with little vegetation cover. Human presence on the island has also caused dramatic changes to the original flora and fauna of the island. Only approximately 10 percent of the forest cover observed by the first explorers now remains in a semi-natural state, and that is concentrated in the interior highlands. Saint Helena Island was also visited by Charles Darwin during his scientific voyages in the 19th century. He visited the island in 1836 aboard HMS Beagle, recording observations of the flora, fauna, and geology that would inform his theory of evolution. This image was acquired by crew members onboard the International Space Station as part of an ongoing project (the HMS Beagle Project) to document current biodiversity in areas visited by Charles Darwin.

  6. A new species of spiny-backed treefrog (Osteocephalus) from Central Amazonian Brazil (Amphibia: Anura: Hylidae).

    PubMed

    Jungfer, Karl-Heinz; Verdade, Vanessa K; Faivovich, Julián; Rodrigues, Miguel T

    2016-05-23

    A new species of treefrog of the genus Osteocephalus is described from the Rio Abacaxis, a southern tributary of the Amazonas in the state of Amazonas, Brazil. This member of the O. buckleyi group is characterized by green dorsal colouration with irregular blotches of various shades of brown, light venter with tan spots and bold dark markings on the posterior surfaces of the thighs. It can be distinguished from its closest relative, O. helenae from the same general area, by the lack of an axillary membrane, a few indistinct tubercles on the proximal segment of Finger IV and single ulnar tubercles.

  7. Revision of the Neotropical genus Carvalhoiella De Carlo (Heteroptera: Nepomorpha: Naucoridae).

    PubMed

    Rodrigues, Higor D D; Sites, Robert W; Giehl, Nubia F S

    2016-07-18

    The genus Carvalhoiella De Carlo, 1963 includes saucer bugs (Heteroptera: Naucoridae) that live predominantly on the vertical rocks next to falls and cascades of waterfalls. Thus far, it has been recorded only in South America and includes three described species. In the present paper, based on type specimens and additional material, we present detailed distributions and diagnostic information of the three described species of Carvalhoiella and the descriptions of two new species from central-western Brazil: C. acuminata sp. nov. and C. helenae sp. nov. An illustrated taxonomic key also is presented.

  8. The distribution of zirconium and hafnium in terrestrial rocks, meteorites and the moon

    NASA Technical Reports Server (NTRS)

    Ehmann, W. D.; Chyi, L. L.; Garg, A. N.; Ali, M. Z.

    1979-01-01

    It is shown that Zr and Hf are not always fractionated in terrestrial igneous differentiation or regional metamorphism. Data do support a Zr-Hf fractionation in the differentiation of the alkali olivine magma at St. Helena Island. A strong Zr-Hf fractionation exists among lunar rocks and minerals. Ilmenite is an excellent concentrator of Zr and Hf and always exhibits high Zr/Hf ratios. Chondritic meteorites exhibit rather uniform Zr abundances and Zr/Hf ratios but a distinct Zr-Hf fractionation is observed among the eucrite and diogenite achondrites.

  9. Floods of May 1981 in west-central Montana

    USGS Publications Warehouse

    Parrett, Charles; Omang, R.J.; Hull, J.A.; Fassler, John W.

    1982-01-01

    Extensive flooding occurred in west-central Montana during May 22-23, 1981, as a result of a series of rainstorms. Flooding was particularly severe in the communities of East Helena, Belt, and Deer Lodge. Although no lives were lost, total flood damages were estimated by the Montana Disaster Emergency Services Division to be in excess of $30 million. Peak discharges were determined at 75 sites in the flooded area. At 25 sites the May 1981 peak discharge exceeded the computed 100-year frequency flood, and at 29 sites, where previous flow records are available, the May 1981 peak discharge exceeded the previous peak of record. (USGS)

  10. Elemental contents in Napoleon's hair cut before and after his death: did Napoleon die of arsenic poisoning?

    PubMed

    Lin, Xilei; Alber, D; Henkelmann, R

    2004-05-01

    Whether or not Napoleon died of arsenic poisoning is an open question on which debate has been active since 1960. This work examined several of his hairs, cut at different times and in different places: two pieces cut the day after his death on the island of St. Helena (1821) and two pieces cut seven years earlier (1814) during his first exile on the island of Elba. INAA results show that all of the samples of Napoleon's hair have an elevated arsenic concentration. These results disfavor the arsenic poisoning theory. Aside from arsenic, 18 other elements are reported, providing additional information for examining the arsenic poisoning theory.

  11. How Montana's deepest hole cut Mississippian carbonates underneath Precambrian belt

    SciTech Connect

    Peterson, C.H.; Nims, R.C. )

    1992-08-03

    This paper discusses the Unocal i-B30 Federal Canyon Creek well drilled in the Montana thrust belt about 27 miles northwest of Helena to test Mississippian carbonates in a seismic structure in the footwall of the Eldorado thrust. The well penetrated more than 12,000 ft of thrusted Precambrian belt metasedimentary rocks before encountering a faulted and fractured footwall section of Cretaceous through Mississippian shales, sandstones, and carbonates. The 1-B30 well demonstrated that a more complex duplex structure was present under the Eldorado thrust and that the Madison was deeper than anticipated with a true vertical depth of 16,688 ft.

  12. The distribution of zirconium and hafnium in terrestrial rocks, meteorites and the moon

    NASA Technical Reports Server (NTRS)

    Ehmann, W. D.; Chyi, L. L.; Garg, A. N.; Ali, M. Z.

    1979-01-01

    It is shown that Zr and Hf are not always fractionated in terrestrial igneous differentiation or regional metamorphism. Data do support a Zr-Hf fractionation in the differentiation of the alkali olivine magma at St. Helena Island. A strong Zr-Hf fractionation exists among lunar rocks and minerals. Ilmenite is an excellent concentrator of Zr and Hf and always exhibits high Zr/Hf ratios. Chondritic meteorites exhibit rather uniform Zr abundances and Zr/Hf ratios but a distinct Zr-Hf fractionation is observed among the eucrite and diogenite achondrites.

  13. [From the influence of genes to the influence of family and urban environment on the nutritional status, activity, and physical condition of european urban adolescents].

    PubMed

    Beghin, Laurent; Vanhelst, Jérémy; Deplanque, Dominique; Gonzales-Gross, Marcela; De Henauw, Stefaan; Moreno, Luis A; Gottrand, Frédéric

    HELENA was a cross-sectional study carried out from 2006 to 2007 in more than 3500 adolescents aged from 12.5 to 17.5 years old through 10 Europeans towns from 9 countries. Its objective was to assess adolescent nutritional status including: body composition, biological markers, physical activity and fitness. This study shown the high impact of socio-economic condition, life style and personal and collective environment, dietary pattern (including breastfeeding), some genetic mutations involved in adiposity and metabolism, physical activity level and fitness on adolescent nutritional status. © 2016 médecine/sciences – Inserm.

  14. Drilling report: State Nursery test well No. 1

    SciTech Connect

    Donovan, J.; Sonderegger, J.

    1982-08-27

    A geothermal test well was sited and drilled approximately 0.8 miles (1.3 km) east of Broadwater Hot Springs, near Helena, Montana. The site is on the property of the State Nursery, along the north side of Ten Mile Creek. The purpose of the drilling was to test a thermal infrared imagery anomaly and to evaluate whether a source of warm water for space heating of a series of new greenhouses could be developed to replace ones destroyed in the spring 1981 flooding of Ten Mile Creek. The well was drilled to 280 feet total depth, with no success in obtaining hot or even warm water.

  15. Cryptalyra (Hymenoptera, Megalyridae) from Maranhão, Brazil: three new species discovered after a large collecting effort

    PubMed Central

    Kawada, Ricardo; Barbosa, Diego N.; Azevedo, Celso O.

    2014-01-01

    Abstract Cryptalyra is a small genus of megalyrid wasps with three described species confined to South America. Our main goal in this work is to record an increase in the known diversity, adding the three new species Cryptalyra helenae sp. n., Cryptalyra ichiroi sp. n. and Cryptalyra limeirai sp. n., from a single locality in Maranhão, Brazil that has been subjected to extraordinary collecting effort. We are providing a key for the species of the genus, as well as illustrations of the main structures for recognition of the new taxa. PMID:25349491

  16. A Self-Calibrating Remote Control Chemical Monitoring System

    SciTech Connect

    Jessica Croft

    2007-06-01

    The Susie Mine, part of the Upper Tenmile Mining Area, is located in Rimini, MT about 15 miles southwest of Helena, MT. The Upper Tenmile Creek Mining Area is an EPA Superfund site with 70 abandoned hard rock mines and several residential yards prioritized for clean up. Water from the Susie mine flows into Tenmile Creek from which the city of Helena draws part of its water supply. MSE Technology Applications in Butte, Montana was contracted by the EPA to build a treatment system for the Susie mine effluent and demonstrate a system capable of treating mine waste water in remote locations. The Idaho National Lab was contracted to design, build and demonstrate a low maintenance self-calibrating monitoring system that would monitor multiple sample points, allow remote two-way communications with the control software and allow access to the collected data through a web site. The Automated Chemical Analysis Monitoring (ACAM) system was installed in December 2006. This thesis documents the overall design of the hardware, control software and website, the data collected while MSE-TA’s system was operational, the data collected after MSE-TA’s system was shut down and suggested improvements to the existing system.

  17. Earthquake damage to schools

    USGS Publications Warehouse

    McCullough, Heather

    1994-01-01

    These unusual slides show earthquake damage to school and university buildings around the world. They graphically illustrate the potential danger to our schools, and to the welfare of our children, that results from major earthquakes. The slides range from Algeria, where a collapsed school roof is held up only by students' desks; to Anchorage, Alaska, where an elementary school structure has split in half; to California and other areas, where school buildings have sustained damage to walls, roofs, and chimneys. Interestingly, all the United States earthquakes depicted in this set of slides occurred either on a holiday or before or after school hours, except the 1935 tremor in Helena, Montana, which occurred at 11:35 am. It undoubtedly would have caused casualties had the schools not been closed days earlier by Helena city officials because of a damaging foreshock. Students in Algeria, the People's Republic of China, Armenia, and other stricken countries were not so fortunate. This set of slides represents 17 destructive earthquakes that occurred in 9 countries, and covers more than a century--from 1886 to 1988. Two of the tremors, both of which occurred in the United States, were magnitude 8+ on the Richter Scale, and four were magnitude 7-7.9. The events represented by the slides (see table below) claimed more than a quarter of a million lives.

  18. Comparison of four commercial methods for the determination of fast hemoglobins.

    PubMed

    Lee, L P; Arnott, B; Feng, M; Hynie, I

    1982-08-01

    The performance of three commercial kits, based on microchromatographic techniques for the determination of glycosylated hemoglobins (fast hemoglobins) has been evaluated. All three kits showed good precision, provided the laboratory temperature remained constant. Temperature variations of even one degree C had a profound effect on the kits from Helena Laboratories and Isolab Inc., while the one from BIO-RAD Laboratories was less influenced. The use of the temperature correction tables provided by Helena Laboratories and Isolab Inc., improved the reproducibility of their results significantly. Since there is no designated reference method, an evaluation of accuracy was not possible. The absolute values for fast hemoglobins, as measured by the three microchromatographic kits, differed from each other. Also, when a series of specimens from diabetic patients and from healthy control subjects were compared, the relative ratios of the results obtained from the three kits differed from specimen to specimen. However, there was no overlap between results from diabetic and control specimens. The performance of the electrophoretic method of Corning Medical Co. was also evaluated.

  19. Tectonic ancestry of central Montana and its influence on inversion tectonics

    SciTech Connect

    Woodward, L.A.

    1996-06-01

    Inversion tectonics, where structurally low areas become structurally high, has profound implications for hydrocarbon exploration. Effective exploration depends on understanding structures, timing, and controls on tectonic inversion. In central Montana tectonic inversion occurred three times in Phanerozoic time and reflects Precambrian tectonic trends. Westerly striking, steep foliation in Archean crystalline rocks defines the tectonic grain in basement exposures. The Helena embayment of the Middle Proterozoic Belt Basin formed an east-trending aulacogen extending into the craton in central Montana. Westerly trending fault-blocks of probable Late Proterozoic age formed within the embayment. The trough was tectonically inverted in the Devonian, but was depressed in the Carboniferous, accumulating major thicknesses of Madison Group and Big Snowy Group strata. Tectonic inversion again occurred with rise of the {open_quotes}Belt island{close_quotes} in the Jurassic. The trough was reactivated with a thick accumulation of lower Lower Cretaceous strata. Laramide (Late Cretaceous-early Tertiary) deformation resulted in tectonic inversion with rise of the Little Belt, Big Snowy, and related uplifts. Reactivation with reverse and strike-slip movement occurred on synsedimentary Proterozoic westerly trending normal faults that bounded the Helena embayment. Subsidence was probably related to crustal extension, whereas tectonic inversion and rise is inferred to be caused by crustal shortening. West-northwesterly trending en echelon folds that cross central Montana suggest major left shift. The Precambrian structural framework and fabric of the region thus appear to have had major influence on tectonic features that were multiply reactivated in Phanerozoic time.

  20. Kinematics of thrust sheets within transverse zones: a structural and paleomagnetic investigation in the Appalachian thrust belt of Georgia and Alabama

    NASA Astrophysics Data System (ADS)

    Bayona, Germán; Thomas, William A.; Van der Voo, Rob

    2003-08-01

    Deformation styles of orogenic belts change along strike across transverse zones (TZs); hence, the kinematics of TZs is indispensable for three-dimensional restoration of thrust belts. We investigate the causes of deviation in strike of fold axes and fault surfaces in two TZs of the southern Appalachians using structural cross-sections and paleomagnetism. In the Rising Fawn TZ of Georgia, hanging-wall lateral-ramp folds yield paleomagnetic rotations and variation in magnitude of thrust translation. Plunge of folds, differential slip, and rotations are associated with lateral-ramp geometry and along-strike variation in the rheology and thickness of units that host lower and upper detachment levels. In Alabama, the internal geometry, strike, and paleomagnetic rotations of the Helena thrust sheet change across the Anniston TZ. These differences resulted from movement of the Helena thrust sheet over different footwall blocks and sub-décollement basement graben structures, and from differential slip along an oblique ramp. Rotations of thrust sheets within TZs occur where a thrust sheet was translated over: (1) an oblique/lateral ramp with contrasting rock strengths at lower and upper detachment levels, (2) a transverse basement fault that separates contrasting basement structural domains, and (3) intersections between frontal ramps and transverse structures. Because of the local causes of rotations in lateral structures, paleomagnetic and structural analyses of TZs are necessary for understanding the kinematics and restoration of both single thrust sheets and large-scale curves in thrust belts.

  1. Independent and Combined Effects of Physical Activity and Sedentary Behavior on Blood Pressure in Adolescents: Gender Differences in Two Cross-Sectional Studies

    PubMed Central

    de Moraes, Augusto César Ferreira; Carvalho, Heráclito Barbosa; Rey-López, Juan Pablo; Gracia-Marco, Luis; Beghin, Laurent; Kafatos, Anthony; Jiménez-Pavón, David; Molnar, Dénes; De Henauw, Stefaan; Manios, Yannis; Widhalm, Kurt; Ruiz, Jonatan R.; Ortega, Francisco B.; Sjöström, Michael; Polito, Angela; Pedrero-Chamizo, Raquel; Marcos, Ascensión; Gottrand, Frederic; Moreno, Luis A.

    2013-01-01

    Objectives To examine the independent and combined association of physical activity (PA) and sedentary behavior (SB) on both systolic (SBP) and diastolic blood pressure (DBP) in adolescents from two observational studies. Methods Participants from two cross-sectional studies, one conducted in Europe (n = 3,308; HELENA study) and the other in Brazil (n = 991; BRACAH study), were selected by complex sampling. Systolic and diastolic blood pressure (outcomes), PA and SB, both independently and combined, and potential confounders were analyzed. Associations were examined by multilevel linear regression. Results Performing the recommended amount of PA (≥60 min/d) attenuated the effect of SB on DBP in BRACAH study girls and in boys from both studies. In contrast, PA did not attenuate the effects of SB on the SBP of girls in the HELENA study. The combination of less than recommended levels of PA with 2–4 h/d of sedentary behavior was found to be associated with increased SBP in boys from both studies. Conclusions Meeting current PA recommendations could mediate the association between SB and DBP in both sexes. In boys, the joint effect of low levels of PA and excessive sedentary activity increases SBP levels. Longitudinal studies are required to confirm these findings. PMID:23650506

  2. Stable isotope evidence for glacial lake drainage through the St. Lawrence Estuary, eastern Canada, ~13.1-12.9 ka

    USGS Publications Warehouse

    Cronin, T. M.; Rayburn, J.A.; Guilbault, J.-P.; Thunell, R.; Franzi, D.A.

    2012-01-01

    Postglacial varved and rhythmically-laminated clays deposited during the transition from glacial Lake Vermont (LV) to the Champlain Sea (CS) record hydrological changes in the Champlain-St. Lawrence Valley (CSLV) at the onset of the Younger Dryas ∼13.1–12.9 ka linked to glacial lake drainage events. Oxygen isotope (δ18O) records of three species of benthic foraminifera (Cassidulina reniforme, Haynesina orbiculare, Islandiella helenae) from six sediment cores and the freshwater ostracode Candona from one core were studied. Results show six large isotope excursions (∼0.5 to >2‰) in C. reniforme δ18O values, five excursions in H. orbiculare (<0.5 to ∼1.8‰), and five smaller changes in I. helenae (<0.5‰). δ18O values in Candona show a 1.5–2‰ increase in the same interval. These isotopic excursions in co-occurring marine and freshwater species in varve-like sediments indicate complex hydrological changes in the earliest Champlain Sea, including brief (sub-annual) periods of complete freshening. One hypothesis to explain these results is that multiple abrupt freshwater influx events caused surface-to-bottom freshening of the Champlain Sea over days to weeks. The most likely source of freshwater would have been drainage of the Morehead Phase of glacial Lake Agassiz, perhaps in a series of floods, ultimately draining out the St. Lawrence Estuary.

  3. Tectonic insights of the southwest Amazon Craton from geophysical, geochemical and mineralogical data of Figueira Branca mafic-ultramafic suite, Brazil

    NASA Astrophysics Data System (ADS)

    Louro, Vinicius H. A.; Cawood, Peter A.; Mantovani, Marta S. M.; Ribeiro, Vanessa B.

    2017-06-01

    The Figueira Branca Suite is a layered mafic-ultramafic complex in the Jauru Terrane, southwest Amazon Craton. New lithological, geochemical, gamma-ray and potential field data, integrated with geological, isotope and paleomagnetic data are used to characterize this pulse of Mesoproterozoic extension-related magmatism. The Figueira Branca Suite formed through juvenile magma emplacement into the crust at 1425 Ma, coeval with the later stages of the Santa Helena Orogen. Gabbros and peridotite-gabbros display increasing enrichment of LREE, interpreted as evidence of progressive fractionation of the magma. Magnetic and gamma-ray data delimit the extent of magmatism within the suite to four bodies to the north of Indiavaí city. Modelling gravity and magnetic field data indicate that the anomalous sources are close to the surface or outcropping. These intrusions trend northwest over 8 km, with significant remanent magnetization that is consistent with published direction obtained through paleomagnetic data. The emplacement, mineralogy and geochemical signature point towards a back-arc extension tectonic framework in the later stages of the Santa Helena Orogen.

  4. Water-resources investigations of the U.S. Geological Survey in Montana, October 1982 through September 1983

    USGS Publications Warehouse

    Roberts, Robert S.

    1983-01-01

    The investigative efforts of the U.S. Geological Survey toward the water resources of Montana are described. Hydrologic information and knowledge of the water resources are gained annd disseminated principally by programs of (1) collecting hydrologic data on a continuing basis, (2) conducting water-resources appraisals of surface and ground water, (3) conducting supportive research in hydrology and related fields, (4) disseminating water data and results of investigations to the public, (5) coordinating acquisition of water data by Federal agencies, and (6) providing technical assistance in hydrologic fields to other government agencies. The Montana district of the U.S. Geological Survey conducts its hydrologic work through a headquarters office in Helena, a subdistrict office in Billings, and field offices in Helena, Fort Peck, and Kalispell. The district employs 67 people to work on 24 funded projects that are organized under the general categories of data-collection programs, problem-oriented studies, areal appraisals, coal-related studies, research projects, and hydrologic studies and research performed under a system of contracts to research organizations. (USGS)

  5. Water-resources investigations of the U.S. Geological Survey in Montana, October 1983 through September 1984

    USGS Publications Warehouse

    Roberts, R.S.

    1984-01-01

    U.S. Geological Survey investigations of the water resources of Montana are described. Hydrologic information and knowledge of the water resources are gained and disseminated principally by programs of (1) collecting hydrologic data on a continuing basis , (2) conducting water-resources appraisals of surface and ground water, (3) conducting supportive research in hydrology and related fields, (4) disseminating water data and results of investigations to the public, (5) coordinating acquisition of water data by Federal agencies, and (6) providing technical assistance in hydrologic fields to other government agencies. The Montana district of the U.S. Geological Survey conducts its hydrologic work through a headquarters office in Helena, a subdistrict office in Billings, and field offices in Helena, Fort Peck, and Kalispell. The district employs 67 people to work on 25 funded projects that are organized under the general categories of data-collection programs, problem-oriented studies , a real appraisals, coal-related studies, research projects, and hydrologic studies and research performed under contracts to research organizations. (USGS)

  6. Geophysical applications for levee assessment

    NASA Astrophysics Data System (ADS)

    Chlaib, Hussein Khalefa

    Levees are important engineering structures that build along the rivers to protect the human lives and shield the communities as well as agriculture lands from the high water level events. Animal burrows, subsurface cavities, and low density (high permeability) zones are weakness features within the levee body that increase its risk of failure. To prevent such failure, continuous monitoring of the structure integrity and early detection of the weakness features must be conducted. Application of Ground Penetrating Radar (GPR) and Capacitively Coupled Resistivity (CCR) methods were found to be very effective in assessing the levees and detect zones of weakness within the levee body. GPR was implemented using multi-frequency antennas (200, 400, and 900 MHz) with survey cart/wheel and survey vehicle. The (CCR) method was applied by using a single transmitter and three receivers. Studying the capability and the effectiveness of these methods in levee monitoring, subsurface weakness feature detection, and studying the structure integrity of levees were the main tasks of this dissertation. A set of laboratory experiments was conducted at the Geophysics Laboratory of the University of Arkansas at Little Rock (UALR) to analyze the polarity change in GPR signals in the presence of subsurface voids and water-filled cavities. Also three full scale field expeditions at the Big Dam Bridge (BDB) Levee, Lollie Levee, and Helena Levee in Arkansas were conducted using the GPR technique. This technique was effective in detecting empty, water, and clay filled cavities as well as small scale animal burrows (small rodents). The geophysical work at BDB and Lollie Levees expressed intensive subsurface anomalies which might decrease their integrity while the Helena Levee shows less subsurface anomalies. The compaction of levee material is a key factor affecting piping phenomenon. The structural integrity of the levee partially depends on the density/compaction of the soil layers. A

  7. Little Rock and El Dorado 1/sup 0/ x 2/sup 0/ NTMS quadrangles and adjacent areas, Arkansas: data report (abbreviated)

    SciTech Connect

    Steel, K.F.; Cook, J.R.

    1981-07-01

    This abbreviated data report presents results of ground water and stream sediment reconnaissance in the National Topographic Map Series Little Rock 1/sup 0/ x 2/sup 0/ quadrangle (Cleveland, Dallas, and Howard Counties do not have stream sediment analyses); the El Dorado 1/sup 0/ x 2/sup 0/ quadrangle (only Clark County has stream sediment analyses); the western part (Lonoke and Jefferson Counties) of Helena 1/sup 0/ x 2/sup 0/ quadrangle; the southern part (Franklin, Logan, Yell, Perry, Faulkner, and Lonoke Counties) of Russellville 1/sup 0/ x 2/sup 0/ quadrangle; and the southwestern corner (Ashley County) of the Greenwood 1/sup 0/ x 2/sup 0/ quadrangle. Stream samples were collected at 943 sites in the Little Rock quadrangle, 806 sites in the El Dorado quadrangle, 121 sites in the Helena area, 292 sites in the Russellville area, and 77 in the Greenwood area. Ground water samples were collected at 1211 sites in the Little Rock quadrangle, 1369 sites in the El Dorado quadrangle, 186 sites in the Helena area, 470 sites in the Russellville area, and 138 sites in the Greenwood area. Stream sediment and stream water samples were collected from small streams at nominal density of one site per 21 square kilometers in rural areas. Ground water samples were collected at a nominal density of one site per 13 square kilometers. Neutron activation analysis results are given for uranium and 16 other elements in sediments, and for uranium and 8 other elements in ground water. Field measurements and observations are reported for each site. Uranium concentrations in the sediments ranged from less than 0.1 ppM to 23.5 ppM with a mean of 1.7 ppM. The ground water uranium mean concentration is 0.113 ppB, and the uranium concentrations range from less than 0.002 ppB to 15.875 ppB. High ground water uranium values in the Ouachita Mountain region of the Little Rock quadrangle appear to be associated with Ordovician black shale units.

  8. First Row Transition Metals in Olivine - Petrogenetic Tracers for the Evolution of Mantle-Derived Magmas

    NASA Astrophysics Data System (ADS)

    Locmelis, M.; Arevalo, R. D., Jr.; Puchtel, I. S.; Barnes, S. J.; Fiorentini, M. L.

    2015-12-01

    Olivine is the most abundant mineral in the upper mantle and a major constituent of most mantle-derived rocks. However, despite its abundance, studies on the trace element chemistry of olivine are underrepresented in the literature. We present the results of a comprehensive study on the contents of first-row transition metals (FRTM: Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn), Ga and Ge in olivines from 2.7-3.5 Ga old Munro- and Barberton-type komatiites from the Kapvaal and Zimbabwe Cratons in southern Africa, the Yilgarn Craton in Australia, and the Superior Craton in Canada. Komatiitic olivines are compared to olivines from a Devonian-Carboniferous mantle peridotite (Finero, Italy) and contemporary ocean Island basalts (OIB, from St. Helena, South Atlantic Ocean). The olivine major element chemistry was determined using a JEOL JXA-8900 Superprobe at the University of Maryland. Trace element contents were determined using a Photon Machines Analyte G2 193 nm Excimer laser ablation system coupled to a Nu Instruments AttoM single collector ICP-MS at NASA Goddard Space Flight Center. Medium resolution mass discrimination (m/Δm = 2500, at 5% peak intensity) was leveraged to separate isobaric interferences and support accurate quantitation of elemental abundances. The results show that olivines from komatiites are largely depleted in FRTM, Ga and Ge relative to the composition of the primitive mantle (FRTMPM-norm = ~0.01 - 1). All komatiitic olivines have similar mantle-normalized trace element patterns, regardless of age and/or locality. Olivines from the Finero mantle peridotite and the St. Helena OIB are similarly depleted. However, compared to komatiites, grains from Finero are enriched in Ge and distinctly depleted in Ti, V, Cr, and Ga, whereas olivines from St. Helena have overall flatter normalized trace element patterns. The distinct patterns show that olivine chemistry can be used to identify and understand the source and evolution of mantle-derived rocks

  9. Indirect estimation of the tectonic evolution of magnetic structures along the Indiavaí-Lucialva Shear Zone, Mato Grosso, Brazil

    NASA Astrophysics Data System (ADS)

    Louro, V. H.; Ribeiro, V. B.; Mantovani, M. S.; Geolit Team

    2013-05-01

    The Indiavaí-Lucialva Shear Zone (ILSZ) has a notorious cinematic standard, moving from SW to NE, juxtaposing the Santa Helena Granitic Batholith to the metavolcanosedimentary sets and orthogneisses from the Jauru Domain basement. Along the ILSZ, a sequence of magnetic anomalies of high interference, with each other, and varied polarities occurs, what suggests the presence of different lithologies or times of (re)crystallization of the ferromagnetic minerals from these magnetic structures. In its southernmost portion, the sequence of magnetic anomalies splits in two directions, SW and SE, with the first invading the limits of the Santa Helena batholith and, the latest, accompanying the ILSZ. This study aimed for the comprehension of complex tectonic setting of this region. It analyzed the set of anomalies estimating their lateral limits, depths and directions of total magnetization, with the Enhanced Horizontal Derivatives (EHD), its extrapolation for depth estimative (EHD-Depth), and through an iterative reduction to the magnetic pole, respectively. This procedure allowed the composition of initial models for further inversions of magnetic data which, results, indicate contrasts of magnetic susceptibility in sub-surface. Once known the approximated 3-D shape of the magnetic structures along the ILSZ, the total magnetization intensity of each anomaly was recovered, what consequently allowed, by vector subtraction, to estimate their individual remnant magnetization. The remnant magnetization's inclinations and declinations of the anomalies sources and their latitudes and longitudes permitted the calculus of their respective virtual magnetic paleopoles. When confronted with the South American paleopole wander path and the datings linked to this path, available in the literature, it was possible to have an indirect approximation of the age of (re)crystallization of each magnetic structure near the ILSZ. This procedure indicated an increasing of the ages of the

  10. STUDY OF RESPIRATORY SYMPTOMS AND VENTILATORY CAPACITIES AMONG ROPE WORKERS

    PubMed Central

    Munt, D. F.; Gauvain, Suzette; Walford, Joan; Schilling, R. S. F.

    1965-01-01

    In a rope works handling manila, sisal, and St. Helena hemps, the prevalence of respiratory symptoms and the change in forced expiratory volume (F.E.V.1·0) during the work shift were studied in a group of 41 women and 41 men who represented 93% of the population at risk. Dust concentrations, measured with a modified Hexhlet, ranged from 0·11 to 4·51 mg./m.3 for total dust and 0·02 to 1·46 mg./m.3 for fine dust. The highest concentrations were found in the preparing rooms, in which the workers, all of whom were women, showed on the average a fall in ventilatory capacity during the shift. The workers in the rope walk, all of whom were men, showed a rise in ventilatory capacity during the shift. The difference between the men and women was statistically significant (p < 0·05). No worker gave a characteristic history of byssinosis, although nine women complained of chest tightness associated with their work. Undue breathlessness on exertion and persistent cough and phlegm were also more common among the women, but they were on the average 18 years older than the men. When the ventilatory capacities and the prevalence of respiratory symptoms of women rope workers were compared with those of a group of women employed elsewhere in the dockyard, the only significant difference was that the rope workers had more chest tightness associated with their work (p < 0·02). Exposure of volunteers to St. Helena hemp, which is apparently the most likely of the hard hemps to give rise to respiratory symptoms, caused only a slight fall in ventilatory capacity and a small rise in airways resistance. A sample of St. Helena hemp assayed on guinea-pig ileum had only a relatively small degree of contractor activity. The evidence suggests that the dusts of hard hemps do not cause byssinosis under the conditions in this factory. However, the irritant nature of the dust indicates the need to prevent total dust levels exceeding about 2 mg./m.3. Images

  11. Evaluation of iron status: zinc protoporphyrin vis-a-vis bone marrow iron stores.

    PubMed

    Das, Sheila; Philip, Kandathil Joseph

    2008-01-01

    Zinc protoporphyrin (ZPP) in the red cells is an indicator of iron status in the bone marrow (BM) and can be easily measured by Protofluor-Z Hematofluorometer from Helena Laboratories. It is well known that bone marrow iron is a gold standard for the diagnosis of iron deficiency anemia (IDA) even in the pre-latent phase. Hence, it was considered pertinent to evaluate the diagnostic utility of ZPP in comparison with bone marrow iron stores. 107 random BM were selected over a period of 2(1/2) years; in each case, RBC indices where recorded along with ZPP and Perls' Prussian blue reaction for BM iron stores. The specificity and sensitivity were found to be 77.8% and sensitivity 69.8%, respectively. However, the sensitivity increased up to 96.2% when Hb, RBC indices and ZPP were considered for the diagnosis of IDA.

  12. Bothaella manhi, a new species of tribe Aedini (Diptera: Culicidae) from the Cuc Phuong National Park of Vietnam based on morphology and DNA sequence

    PubMed Central

    COOK, SHELLEY; LIEN, NGO GIANG; MCALISTER, ERICA; HARBACH, RALPH E.

    2012-01-01

    A new species of genus Bothaella (Diptera: Culicidae) collected along with two other species of the genus during surveys for flavivirus isolations in the Cuc Phuong National Park in northern Vietnam is formally described and named as Bothaella manhi, sp. n. The adults, pupa and fourth-instar larva are characterized, the male genitalia and the two immature stages are illustrated and DNA sequence data are included for regions coding for sections of the COI and COII genes (mtDNA). The species is compared and distinguished from the other species of the genus, and sequence data are used to hypothesise its phylogenetic relationship with Bo. helenae and Bo. kleini, the other two species collected during the survey. PMID:23155353

  13. Redescription of Mymarilla Westwood, new synonymies under Cremnomymar Ogloblin (Hymenoptera, Mymaridae) and discussion of unusual wings

    PubMed Central

    Huber, John T.

    2013-01-01

    Abstract The monotypic genus Mymarilla Westwood is known only from St. Helena, a remote island in the South Atlantic Ocean. The peculiar species M. wollastoni Westwood (Mymaridae) is redescribed and illustrated from non-type material. Mymarilla is compared with Cremnomymar Ogloblinspp. from the Juan Fernández Islands in the South Pacific Ocean. Stephanodes Enock is shown to be the most likely sister genus to Mymarilla. Nesopolynema Ogloblin, syn. n., Oncomymar Ogloblin, syn. n., Scolopsopteron Ogloblin, syn. n., are placed in synonymy under Cremnomymar and their species transferred as Cremnomymar caudatum (Ogloblin 1952), comb. n., C. dipteron (Ogloblin 1957), comb. n., and C. kuscheli (Ogloblin 1952), comb. n. Wing shape and wing reductions in Mymaridae are discussed in relation to biogeography, particularly with respect island faunas and to four genera, Cremnomymar, Mymarilla, Parapolynema Fidalgo, and Richteria Girault, some or all of whose species have more or less convex fore wings. PMID:24194664

  14. Agrobacterium-mediated transformation of apricot (Prunus armeniaca L.) leaf explants.

    PubMed

    Petri, César; Wang, Hong; Alburquerque, Nuria; Faize, Mohamed; Burgos, Lorenzo

    2008-08-01

    A protocol for Agrobacterium-mediated stable transformation for scored, whole leaf explants of the apricot (Prunus armeniaca) cultivar Helena was developed. Regenerated shoots were selected using a two-step increased concentrations of paromomycin sulphate. Different factors affecting survival of transformed buds, including possible toxicity of green fluorescent protein (GFP) and time of exposure to high cytokine concentration in the regeneration medium, were examined. Transformation efficiency, based on PCR analysis of individual putative transformed shoots from independent lines was 5.6%, when optimal conditions for bud survival were provided. Southern blot analysis on four randomly chosen PCR-positive shoots confirmed the presence of the nptII transgene. This is the first time that stable transformation of an apricot cultivar is reported and constitutes also one of the few reports on the transformation of Prunus cultivars.

  15. Apricot (Prunus armeniaca L.).

    PubMed

    Petri, César; Alburquerque, Nuria; Burgos, Lorenzo

    2015-01-01

    A protocol for Agrobacterium-mediated stable transformation of whole leaf explants of the apricot (Prunus armeniaca) cultivars 'Helena' and 'Canino' is described. Regenerated buds were selected using a two-step selection strategy with paromomycin sulfate and transferred to bud multiplication medium 1 week after they were detected for optimal survival. After buds were transferred to bud multiplication medium, antibiotic was changed to kanamycin and concentration increased gradually at each transfer to fresh medium in order to eliminate possible escapes and chimeras. Transformation efficiency, based on PCR analysis of individual putative transformed shoots from independent lines, was 5.6%. Green and healthy buds, surviving high kanamycin concentration, were transferred to shoot multiplication medium where they elongated in shoots and proliferated. Elongated transgenic shoots were rooted in a medium containing 70 μM kanamycin. Rooted plants were acclimatized following standard procedures. This constitutes the only transformation protocol described for apricot clonal tissues and one of the few of Prunus.

  16. Six Months in Ascension

    NASA Astrophysics Data System (ADS)

    Black Gill, Isobel Sarah; Gill, David

    2010-06-01

    Introduction David Gill; 1. Why we went; 2. The voyage; 3. St. Helena; 4. What Ascension looked like; 5. Ascension past and present; 6. Round about Garrison; 7. A night on the Clinker; 8. Change and check; 9. Mars Bay; 10. A Sunday scene; 11. The opposition of Mars; 12. The sea-shore and the rollers; 13. Green Mountain; 14. Sunday at the mountain; 15. Why we had only a gallon of water; 16. Trips from Garden Cottage; 17. Mars Bay without a cook; 18. Wide-awake fair; 19. Last days at Mars Bay; 20. Christmas in Garrison; 21. About the Kroomen; 22. Clinker Cemeteries; 23. Christmas holidays; 24. The Devil's riding school; 25. Homeward bound.

  17. South Africa as seen from STS-63 Discovery

    NASA Technical Reports Server (NTRS)

    1995-01-01

    The southwest coast of southern Africa from St. Helena Bay (large bay at center), to Table Bay at Cape Town (bottom, with Robben Island near entrance). The pier at the naval base and fishing port of Saldhanaha Bay can be seen in the small bay (center). False Bay is cut off by the bottom edge of the frame. What NASA scientists think to be a phytoplankton bloom appears offshore in the cold upwelled water off the Atlantic coast. Farmland, especially that used for wine growing, is found near the coast occupying the Mediterranian-like climate of the Southwest Cape Province; but inland of the mountains of the Karroo Desert is home to sheep farmers and little agriculture.

  18. An approach to the phenomenological analysis of data.

    PubMed

    Priest, Helena

    2003-01-01

    In this paper, Helena Priest describes and justifies a phenomenological research method that may be used to explore complex and nebulous concepts relevant to nursing and health care, for example, the concept of 'caring'. The history and development of Husserlian phenomenology are outlined, followed by an account of the use of phenomenology within nursing research. Tensions inherent in the use of Husserlian phenomenology in nursing research are noted. A phenomenological approach to data analysis, designed to address some of these tensions, is described and compared with several well-established phenomenological analysis strategies. Issues of reliability, validity and generalisability are discussed, as are limitations in the use of the approach, before conclusions relevant to healthcare researchers are drawn.

  19. A new species of Amphictene (Annelida, Pectinariidae) from the Gulf of Mexico, with a redescription of Amphictene guatemalensis (Nilsson, 1928)

    PubMed Central

    García-Garza, María E.; de León-González, J.A.

    2014-01-01

    Abstract The genus Amphictene is reported for the first time from Mexico. Previous records for America are restricted to Brazil (Amphictene catharinensis) (Grube, 1870), and Guatemala (Amphictene guatemalensis) (Nilsson, 1928). In this paper we describe a new species, Amphictene helenae sp. n., characterized by the presence of three pairs of tentacular cirri, while other species have only two pairs. The new species is closely similar to Amphictene catharinensis, and can be distinguished by the presence of a circular group of glandular papillae inserted between the lines of glandular cirri present from the second segment. Amphictene guatemalensis is redescribed based on type material; it differs from the new species in the presence of two pairs of tentacular cirri on segments 1 and 2, six pairs of glandular cirri on the third segment, and four glandular lobes fused in pairs on the fourth segment. PMID:24478574

  20. South Africa as seen from STS-63 Discovery

    NASA Technical Reports Server (NTRS)

    1995-01-01

    The southwest coast of southern Africa from St. Helena Bay (large bay at center), to Table Bay at Cape Town (bottom, with Robben Island near entrance). The pier at the naval base and fishing port of Saldhanaha Bay can be seen in the small bay (center). False Bay is cut off by the bottom edge of the frame. What NASA scientists think to be a phytoplankton bloom appears offshore in the cold upwelled water off the Atlantic coast. Farmland, especially that used for wine growing, is found near the coast occupying the Mediterranian-like climate of the Southwest Cape Province; but inland of the mountains of the Karroo Desert is home to sheep farmers and little agriculture.

  1. Anesthesia for a patient of acromesomelic dysplasia with associated hydrocephalus, Arnold Chiari malformation and syringomyelia

    PubMed Central

    Haldar, Rudrashish; Gyanesh, Prakhar; Samanta, Sukhen

    2013-01-01

    Acromesomelic dysplasias are autosomal recessive osteochondrodysplasias. Acromesomelic dysplasia Maroteaux-type (AMDM), also known as St Helena dysplasia, is of two types: The classical and the mild variety. About 50 cases of AMDM have been reported till date, most of them being the classical variety. There is scarcity of literature on anesthesia for such patients. We are reporting a case of general anesthetic management of AMDM, associated with hydrocephalus, Arnold Chiari malformation type-1 and syringomyelia. The patient was a 10-year-old short-statured boy who presented with symptomatic thoracic kyphoscoliosis, gibbus deformity and back pain. On examination, there was no neurological deficit. Radiology revealed thoracic kyphoscoliosis, mild ventriculomegaly and upper cervical syringomyelia. The patient underwent posterior fossa decompression in the prone position under general anesthesia. We will discuss the anesthetic considerations for such patients and review the pertinent literature. PMID:24249999

  2. A Genome-Wide Survey of Genetic Instability by Transposition in Drosophila Hybrids

    PubMed Central

    Vela, Doris; Fontdevila, Antonio; Vieira, Cristina; García Guerreiro, María Pilar

    2014-01-01

    Hybridization between species is a genomic instability factor involved in increasing mutation rate and new chromosomal rearrangements. Evidence of a relationship between interspecific hybridization and transposable element mobilization has been reported in different organisms, but most studies are usually performed with particular TEs and do not discuss the real effect of hybridization on the whole genome. We have therefore studied whole genome instability of Drosophila interspecific hybrids, looking for the presence of new AFLP markers in hybrids. A high percentage (27–90%) of the instability markers detected corresponds to TEs belonging to classes I and II. Moreover, three transposable elements (Osvaldo, Helena and Galileo) representative of different families, showed an overall increase of transposition rate in hybrids compared to parental species. This research confirms the hypothesis that hybridization induces genomic instability by transposition bursts and suggests that genomic stress by transposition could contribute to a relaxation of mechanisms controlling TEs in the Drosophila genome. PMID:24586475

  3. A Self Calibrating Remote Controllable Water Monitoring System

    NASA Astrophysics Data System (ADS)

    Croft, J. E.; Heath, G. L.

    2006-12-01

    The Idaho National Laboratory (INL) has been asked to support Mountain States Environmental (MSE) by providing an automated remote monitoring system for a treatment process of acid mine discharge from the Susie mine, which is located outside of Rimini near Helena, Montana. The mine, now abandoned, produces water year around that is contaminated with lead, zinc, cadmium and arsenic (Pb, Zn, Cd, and As). MSE is managing a project to install and test a pilot scale treatment system that will operate year around treating the discharge water to remove the metal contaminants of concern. The treatment system employs a combination of lime addition, iron addition, settling chambers, sand filters and polishing to treat the contaminated water. The system requires routine monitoring to ensure that process controls remain functional. The INL is developing a monitoring system capable of self calibrating, with two way communication, in a remote location that will provide physical and chemical water quality measurements throughout the treatment system.

  4. An Analysis of the Requirements for, and the Benefits and Costs of the National Microwave Landing System (MLS). Volume II,

    DTIC Science & Technology

    1980-06-01

    43 704 54 Salisbury Wicomico County 38:20 75:30 60 55 MASSACHUSETTS Bedford Ranscom 42:28 71:17 143 55 Boston Logan 42:22 71:02 29 56 Nantucket...M’ Ui 4r r- r4 P-4 -4 41 -4 Lf) co) 𔃻 c 0 , -4 Lr m " m cy’ ’D0 - ’o0 -4 ccc r’- 0) %0 C% %0 0 r-4 0> M% %D0 u) T U) CD 00 co %D0 IT -4 0% 00 cc ON...Let. Long. (W) Elev. (Ft._) P MONTANA Billings Logan Field 45:48 108:32 3570 69 Great Falls International 47:29 111:22 3657 69 Helena Municipal 46:36

  5. [Isolation of an Paracoccidioides brasiliensis exoantigen from solid culture media].

    PubMed

    Gago, J; Godio, C; Ochoa, L; Negroni, R; Nejamkis, M R

    1995-01-01

    The goal of this work was to develop in solid medium a fast method to obtain Paracoccidioides brasiliensis (Pb) with a high yield. Four culture media were assayed: Sabouraud honey-agar, Sabouraud dextrose-agar, tomato -agar-medium (TOM) and a medium based on grape pulp. The most exhuberant growth was observed in medium based on grape pulp. Antigen was prepared in microscale at 6, 10 and 15 days incubation of solid cultures and the crude product concentrated by means of Centriplus tubes (Helena, France). Isolated antigens were subjected to polyacrylamide gel electrophoresis, followed by immunolabelling and detection of the characteristic gp45 antigen employing human and Pb-infected rat sera. Best results were observed after 10 days culture in grape medium. None of the other three media afforded comparable results.

  6. Anesthesia for a patient of acromesomelic dysplasia with associated hydrocephalus, Arnold Chiari malformation and syringomyelia.

    PubMed

    Haldar, Rudrashish; Gyanesh, Prakhar; Samanta, Sukhen

    2013-10-01

    Acromesomelic dysplasias are autosomal recessive osteochondrodysplasias. Acromesomelic dysplasia Maroteaux-type (AMDM), also known as St Helena dysplasia, is of two types: The classical and the mild variety. About 50 cases of AMDM have been reported till date, most of them being the classical variety. There is scarcity of literature on anesthesia for such patients. We are reporting a case of general anesthetic management of AMDM, associated with hydrocephalus, Arnold Chiari malformation type-1 and syringomyelia. The patient was a 10-year-old short-statured boy who presented with symptomatic thoracic kyphoscoliosis, gibbus deformity and back pain. On examination, there was no neurological deficit. Radiology revealed thoracic kyphoscoliosis, mild ventriculomegaly and upper cervical syringomyelia. The patient underwent posterior fossa decompression in the prone position under general anesthesia. We will discuss the anesthetic considerations for such patients and review the pertinent literature.

  7. A new species of snail-case caddisflies (Trichoptera: Helicopsychidae) and new records of caddisflies from Chapada Diamantina, Bahia, Brazil.

    PubMed

    Souza, Raquel Lima DE; Gomes, Victor; Calor, Adolfo R

    2017-02-03

    A new species of Helicopsyche subgenus Feropsyche from Chapada Diamantina is diagnosed, described, and illustrated. Helicopsyche catoles n. sp. is easily distinguished from congeners by the following features: inferior appendages clavate, each bearing a posteroventral projection with 2-4 setae in lateral view, and tergum X with a notched apex and a short setal row along its length in dorsal view. Additionally, new records from Chapada Diamantina, Bahia, Brazil, are presented. A total of 31 species, including the new species, are recorded, belonging to 14 genera and 8 families. Two of these species constitute new records to Brazil (Helicopsyche (Feropsyche) succincta and Marilia misionensis) and another 10 of these species represent new records for Bahia [Chimarra (Curgia) hyoeides, Macronema hageni, M. partitum, Polyplectropus tragularius, Smicridea coronata, S. helenae, S. iguazu, S. jundiai, S. radula and Marilia major].

  8. Inhibition of erythrocytes δ-aminolevulinic acid dehydratase (ALAD) activity in fish from waters affected by lead smelters

    USGS Publications Warehouse

    Schmitt, Christopher J.; Caldwell, Colleen A.; Olsen, Bill; Serdar, Dave; Coffey, Mike

    2002-01-01

    We assessed the effects on fish of lead (Pb) released to streamsby smelters located in Trail, BC (Canada), E. Helena, MT, Herculaneum, MO, and Glover, MO. Fish were collected by electrofishing from sites located downstream of smelters and from reference sites. Blood from each fish was analyzed for δ-aminolevulinic acid dehydratase (ALAD) activity and hemoglobin (Hb), and samples of blood, liver, or carcass were analyzed for Pb, zinc (Zn), or both. Fish collected downstreamof all four smelters sites had elevated Pb concentrations, decreased ALAD activity, or both relative to their respectivereference sites. At E. Helena, fish from the downstream site also had lower Hb concentrations than fish from upstream. Differences among taxa were also apparent. Consistent with previous studies, ALAD activity in catostomids (Pisces: Catostomidae-northern hog sucker,Hypentelium nigricans;river carpsucker, Carpiodes carpio; largescale sucker, Catostomus macrocheilus; and mountain sucker, C. platyrhynchus) seemed more sensitive to Pb-induced ALADinhibition than the salmonids (Pisces: Salmonidae-rainbow trout,Oncorhynchus mykiss; brook trout,Salvelinus fontinalis) or common carp (Cyprinus carpio). Some of these differences may have resulted from differential accumulation of Zn, which was not measured at all sites. We detected noALAD activity in channel catfish (Ictaluruspunctatus) from either site on the Mississippi River at Herculaneum, MO. Our findings confirmed that Pb is releasedto aquatic ecosystems by smelters and accumulated by fish, andwe documented potentially adverse effects of Pb in fish. We recommend that Zn be measured along with Pb when ALAD activityis used as a biomarker and the collection of at least 10 fish ofa species at each site to facilitate statistical analysis.

  9. Cardiorespiratory fitness and dietary intake in European adolescents: the Healthy Lifestyle in Europe by Nutrition in Adolescence study.

    PubMed

    Cuenca-García, M; Ortega, F B; Huybrechts, I; Ruiz, J R; González-Gross, M; Ottevaere, C; Sjöström, M; Dìaz, L E; Ciarapica, D; Molnar, D; Gottrand, F; Plada, M; Manios, Y; Moreno, L A; De Henauw, S; Kersting, M; Castillo, M J

    2012-06-01

    The present study investigated the association between cardiorespiratory fitness (CRF) and dietary intake in European adolescents. The study comprised 1492 adolescents (770 females) from eight European cities participating in the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study. CRF was assessed by the 20 m shuttle run test. Adolescents were grouped into low and high CRF levels according to the FITNESSGRAM Standards. Dietary intake was self-registered by the adolescents using a computer-based tool for 24 h dietary recalls (HELENA-Dietary Assessment Tool) on two non-consecutive days. Weight and height were measured, and BMI was calculated. Higher CRF was associated with higher total energy intake in boys (P = 0·003). No association was found between CRF and macronutrient intake (as percentage of energy), yet some positive associations were found with daily intake of bread/cereals in boys and dairy products in both boys and girls (all P < 0·003), regardless of centre, age and BMI. CRF was inversely related to sweetened beverage consumption in girls. These findings were overall consistent when CRF was analysed according to the FITNESSGRAM categories (high/low CRF). A high CRF was not related to compliance with dietary recommendations, except for sweetened beverages in girls (P = 0·002). In conclusion, a high CRF is associated with a higher intake of dairy products and bread/cereals, and a lower consumption of sweetened beverages, regardless of centre, age and BMI. The present findings contribute to the understanding of the relationships between dietary factors and physiological health indicators such as CRF.

  10. Vitamin D status among adolescents in Europe: the Healthy Lifestyle in Europe by Nutrition in Adolescence study.

    PubMed

    González-Gross, Marcela; Valtueña, Jara; Breidenassel, Christina; Moreno, Luis A; Ferrari, Marika; Kersting, Matilde; De Henauw, Stefaan; Gottrand, Frederic; Azzini, Elena; Widhalm, Kurt; Kafatos, Anthony; Manios, Yannis; Stehle, Peter

    2012-03-01

    An adequate vitamin D status is essential during childhood and adolescence, for its important role in cell growth, skeletal structure and development. It also reduces the risk of conditions such as CVD, osteoporosis, diabetes mellitus, infections and autoimmune disease. As comparable data on the European level are lacking, assessment of vitamin D concentrations was included in the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study. Fasting blood samples were obtained from a subsample of 1006 adolescents (470 males; 46·8 %) with an age range of 12·5-17·5 years, selected in the ten HELENA cities in the nine European countries participating in this cross-sectional study, and analysed for 25-hydroxycholecalciferol (25(OH)D) by ELISA using EDTA plasma. As specific reference values for adolescents are missing, percentile distribution were computed by age and sex. Median 25(OH)D levels for the whole population were 57·1 nmol/l (5th percentile 24·3 nmol/l, 95th percentile 99·05 nmol/l). Vitamin D status was classified into four groups according to international guidelines (sufficiency/optimal levels ≥ 75 nmol/l; insufficiency 50-75 nmol/l; deficiency 27·5-49·99 nmol/l and severe deficiency < 27·5 nmol/l). About 80 % of the sample had suboptimal levels (39 % had insufficient, 27 % deficient and 15 % severely deficient levels). Vitamin D concentrations increased with age (P < 0·01) and tended to decrease according to BMI. Geographical differences were also identified. Our study results indicate that vitamin D deficiency is a highly prevalent condition in European adolescents and should be a matter of concern for public health authorities.

  11. Inhibition of erythrocyte delta-aminolevulinic acid dehydratase (ALAD) activity in fish from waters affected by lead smelters.

    PubMed

    Schmitt, Christopher J; Caldwell, Colleen A; Olsen, Bill; Serdar, Dave; Coffey, Mike

    2002-07-01

    We assessed the effects on fish of lead (Pb) released to streams by smelters located in Trail, BC (Canada), E. Helena, MT, Herculaneum, MO, and Glover, MO. Fish were collected by electrofishing from sites located downstream of smelters and from reference sites. Blood from each fish was analyzed for delta-aminolevulinic acid dehydratase (ALAD) activity and hemoglobin (Hb), and samples of blood, liver, or carcass were analyzed for Pb, zinc (Zn), or both. Fish collected downstream of all four smelters sites had elevated Pb concentrations, decreased ALAD activity, or both relative to their respective reference sites. At E. Helena, fish from the downstream site also had lower Hb concentrations than fish from upstream. Differences among taxa were also apparent. Consistent with previous studies, ALAD activity in catostomids (Pisces: Catostomidae-northern hog sucker, Hypentelium nigricans; river carpsucker, Carpiodes carpio; largescale sucker, Catostomus macrocheilus; and mountain sucker, C. platyrhynchus) seemed more sensitive to Pb-induced ALAD inhibition than the salmonids (Pisces: Salmonidae-rainbow trout, Oncorhynchus mykiss; brook trout, Salvelinus fontinalis) or common carp (Cyprinus carpio). Some of these differences may have resulted from differential accumulation of Zn, which was not measured at all sites. We detected no ALAD activity in channel catfish (Ictalurus punctatus) from either site on the Mississippi River at Herculaneum. MO. Our findings confirmed that Pb is released to aquatic ecosystems by smelters and accumulated by fish, and we documented potentially adverse effects of Pb in fish. We recommend that Zn be measured along with Pb when ALAD activity is used as a biomarker and the collection of at least 10 fish of a species at each site to facilitate statistical analysis.

  12. Benthic foraminiferal growth seasons implied from Mg/Ca-temperature correlations for three Arctic species

    NASA Astrophysics Data System (ADS)

    Skirbekk, Kari; Hald, Morten; Marchitto, Thomas M.; Junttila, Juho; Klitgaard Kristensen, Dorthe; Aagaard Sørensen, Steffen

    2016-11-01

    Core-top sediment samples from Kongsfjorden, Svalbard, and adjacent fjord and shelf areas were collected in order to investigate a potential relationship between Mg/Ca-ratios of Arctic benthic foraminifera and the ambient bottom water temperatures (BWT). The area is influenced by large seasonal variation in factors such as light and temperature, which is further strengthened by oceanographic shifts, including inflow of relatively warm Atlantic water. Four hydrological seasons have been defined. The studied samples were collected during the years 2005-2010 and comprise data from three hydrological seasons: spring, summer, and autumn. Five common species of cold-water benthic foraminifera were investigated: Islandiella helenae/norcrossi, Buccella frigida, Nonionellina labradorica, Elphidium clavatum, and Cassidulina reniforme. For E. clavatum and C. reniforme, the investigations failed. For the remaining three species, the Mg/Ca-temperature correlations initially appeared stochastic holding correlation coefficients between 0.01 and 0.15. However, grouping the data based on seasons gave stronger Mg/Ca-temperature correlations, indicating specific growing seasons for the three species. The equations represent a starting point for a discussion on seasonality rather than robust, "ready-to-use" equations. I. helenae/norcrossi seems to reproduce and grow during summer (July/August) in outer Kongsfjorden. For B. frigida, a Mg/Ca-temperature correlation is seen both in summer (July/August) and autumn (October/November) samples, indicative of a continuous reproduction/growth-season lasting from July to November. N. labradorica appears to reproduce and grow during autumn (October/November). The results indicate that temperature reconstructions based on these benthic foraminifera reproduce seasonal temperatures rather than annual average temperatures.

  13. PREFACE: 17th International School on Condensed Matter Physics (ISCMP): Open Problems in Condensed Matter Physics, Biomedical Physics and their Applications

    NASA Astrophysics Data System (ADS)

    Dimova-Malinovska, Doriana; Nesheva, Diana; Pecheva, Emilia; Petrov, Alexander G.; Primatarowa, Marina T.

    2012-12-01

    We are pleased to introduce the Proceedings of the 17th International School on Condensed Matter Physics: Open Problems in Condensed Matter Physics, Biomedical Physics and their Applications, organized by the Institute of Solid State Physics of the Bulgarian Academy of Sciences. The Chairman of the School was Professor Alexander G Petrov. Like prior events, the School took place in the beautiful Black Sea resort of Saints Constantine and Helena near Varna, going back to the refurbished facilities of the Panorama hotel. Participants from 17 different countries delivered 31 invited lecturers and 78 posters, contributing through three sessions of poster presentations. Papers submitted to the Proceedings were refereed according to the high standards of the Journal of Physics: Conference Series and the accepted papers illustrate the diversity and the high level of the contributions. Not least significant factor for the success of the 17 ISCMP was the social program, both the organized events (Welcome and Farewell Parties) and the variety of pleasant local restaurants and beaches. Visits to the Archaeological Museum (rich in valuable gold treasures of the ancient Thracian culture) and to the famous rock monastery Aladja were organized for the participants from the Varna Municipality. These Proceedings are published for the second time by the Journal of Physics: Conference Series. We are grateful to the Journal's staff for supporting this idea. The Committee decided that the next event will take place again in Saints Constantine and Helena, 1-5 September 2014. It will be entitled: Challenges of the Nanoscale Science: Theory, Materials and Applications. Doriana Dimova-Malinovska, Diana Nesheva, Emilia Pecheva, Alexander G Petrov and Marina T Primatarowa Editors

  14. Bacteria-induced static batch fungal fermentation of the diterpenoid cyathin A(3), a small-molecule inducer of nerve growth factor.

    PubMed

    Dixon, Emma; Schweibenz, Tatiana; Hight, Alison; Kang, Brian; Dailey, Allyson; Kim, Sarah; Chen, Meng-Yang; Kim, Yura; Neale, Sarah; Groth, Ashley; Ike, Trish; Khan, Sarah; Schweibenz, Brandon; Lieu, David; Stone, David; Orellana, Tania; Couch, Robin D

    2011-05-01

    Cyathin A(3), produced by the fungus Cyathus helenae, is a member of the cyathane family of diterpene natural products. While many of the cyathanes display antibacterial/antimicrobial activity or have cytotoxic activity against human cancer cell lines, their most exciting therapeutic potential is derived from their ability to induce nerve growth factor (NGF) release from glial cells, making the cyathanes attractive lead molecules for the development of neuroprotective therapeutics to prevent/treat Alzheimer's disease. To investigate if cyathin A(3) has NGF-inducing activity, we set out to obtain it using published C. helenae bench-scale fungal fermentations. However, to overcome nonproducing fermentations, we developed an alternative, bacteria-induced static batch fermentation approach to the production of cyathin A(3), as described in this report. HPLC, UV absorption spectra, and mass spectrometry identify cyathin A(3) in fungal fermentations induced by the timely addition of Escherichia coli K12 or Bacillus megabacterium. Pre-filtration of the bacterial culture abolishes cyathin A(3) induction, suggesting that bacteria-associated media changes or physical interaction between the fungus and bacteria underlie the induction mechanism. Through alteration of incubation conditions, including agitation, the timing of induction, and media composition, we optimized the fermentation to yield nearly 1 mg cyathin A(3)/ml media, a sixfold increase over previously described yields. Additionally, by comparison of fermentation profiles, we reveal that cyathin A(3) biosynthesis is regulated by carbon catabolite repression. We have used an enzyme-linked immunosorbent assay to illustrate that cyathin A(3) induces NGF release from cultured glial cells, and therefore cyathin A(3) warrants further examination in the development of neuroprotective therapeutics.

  15. Earth Observations taken by Expedition 34 crewmember

    NASA Image and Video Library

    2013-02-06

    ISS034-E-041528 (6 Feb. 2013) --- Tristan da Cunha is featured in this image photographed by an Expedition 34 crew member on the International Space Station. The island is located in the southern Atlantic Ocean; more than 3,700 kilometers from the northern coastline of Antarctica, approximately 2,800 kilometers to the southern tip of Africa, and more than 3,000 kilometers from the eastern coastline of South America. The island forms part of the British Overseas Territory of Saint Helena, Ascension, and Tristan da Cunha. The shoreline of the 13-kilometer-wide island is marked on most sides by steep cliffs, with lower beach areas on the southern and north-northwestern sides. The island is notable for its bird population, including important breeding grounds for a variety of petrels, albatrosses, penguins and shearwaters. Tristan da Cunha is a shield volcano; a type of volcanic structure usually recognized by a low, broad profile and composed of silica-poor lavas (such as basalt). The upper surface of this low base appears dark green in this photograph. Steeper, brown to tan colored slopes mark the central cone of the volcano at the island?s center. The summit crater, Queen Mary?s Peak, sits at an elevation of 2,060 meters above sea level. While geologic evidence indicates that eruptions have occurred from the central crater, lavas have also erupted from flank vents along the sides of the volcano as well as smaller cinder cones. The last known eruption of Tristan da Cunha took place 1961-1962 and forced evacuation of the only settlement on the island, Edinburgh of the Seven Seas. The settlement is located along the northern coastline of the island (obscured by clouds in this image). This is considered to be the most remote permanent settlement on Earth, with its citizen?s nearest neighbors located 2,173 kilometers to the northeast on the island of St. Helena.

  16. Monitoring of Zero-Valent Iron Permeable Reactive Barriers: Electrical Properties and Barrier Aging

    NASA Astrophysics Data System (ADS)

    Labrecque, D. J.; Adkins, P. L.; Slater, L. D.; Versteeg, R.; Sharpe, R.

    2007-12-01

    An innovative method of groundwater remediation invented in the 1990"s, Permeable Reactive Barriers, use sand-sized grains of scrap iron placed in trenches or injected under pressure to remediate a number of organic and inorganic contaminants. Monitoring the aging of these barriers becomes increasingly important as many of these barriers approach their predicted life spans. In-situ resistivity and induced polarization studies have been conducted at six barriers at four different sites: Monticello, Utah; the Denver Federal Center; Kansas City, Missouri; and East Helena, Montana. As some barriers tend to age dramatically faster than others, for this study we consider low permeability barriers as of greater age, as "old" barriers tend to loose permeability rather than exhaust reactive materials. One complicating factor is that two of the barriers studied appear to have issues related to installation. One site, the former Asarco Smelter Site near East Helena, Montana, has been instrumented with an autonomous monitoring system allowing continuous monitoring of the evolution of a relatively new (less than three years old) barrier. The barrier showed surprisingly rapid evolution over the first year of monitoring with changes in both resistivity and chargeability of tens of percent per month. In general, the electrical properties of all of the barriers studied follow a pattern. New barriers are fairly resistive with in-situ conductivity only a few times background (outside the barrier) values. Older barriers get increasingly conductive, with failed barriers showing values of over 100 S/m. The induced polarization response is more complicated. Chargeability values increase over time for young barriers, are largest for healthy barriers in the middle of their lifespan, and decrease as the barrier ages.

  17. Depositional history and petroleum potential of Middle and Upper Ordovician of Alabama Appalachians

    SciTech Connect

    Benson, J.D.; Mink, R.M.

    1983-09-01

    Middle and Upper Ordovician deposits occupy a significant position in the Paleozoic sequence in the southern Appalachians, since they represent a transition from passive margin carbonate to active margin clastic deposition. Middle Ordovician units show a transition from shallow-water deposits in the west to deeper water basinal deposits in the east. West of the Helena fault the Middle Ordovican is represented by peritidal to shallow subtidal lithologic characteristics of the Chickamauga Limestone. East of the Helena these shallow-water deposits are replaced by deeper water carbonates of the Lenoir and Little Oak Limestones and graptolitic shales of the Athens Formation. Red-green mudrocks of the Greensport Formation were deposited in shallow-shelf to tidal-flat environments and were in turn overlain by quartz arenites of the Colvin Mountain Sandstone, deposited as part of a shallow-barrier system. With continued uplift during the Late Ordovician, additional clastics prograded westward over the filled basin. Early Late Ordovician shallow-shelf to tidal-flat mudrocks of the Sequatchie Formation grade westward into shallow-water carbonates of the Inman and Leipers Formations. With continued input, Sequatchie clastics prograded westward and over-rode the westerly carbonates. A relative sea-level rise during the late Late Ordovican was accompanied by deposition of open-marine shelf, bioclastic limestones of the Sequatchie throughout much of the western Valley and Ridge. The petroleum potential of the Middle and Upper Ordovician sequence in the Alabama Appalachians appears to range from marginal to moderate. The existence of significant reservoirs in this area appears dependent upon the development of fracture porosity associated with Appalachian structures.

  18. Analysis of R&D Strategy for Advanced Combined Cycle Power Systems

    NASA Astrophysics Data System (ADS)

    Akimoto, Keigo; Hayashi, Ayami; Kosugi, Takanobu; Tomoda, Toshimasa

    This article analyzes and evaluates the R&D strategy for advanced power generation technologies, such as natural gas combined cycles, IGCCs (Integrated coal Gasification Combined Cycles), and large-scale fuel cell power generation systems with a mixed-integer programming model. The R&D processes are explicitly formulated in the model through GERT (Graphical Evaluation and Review Technique), and the data on each required time of R&D was collected through questionnaire surveys among the experts. The obtained cost-effective strategy incorporates the optimum investment allocation among the developments of various elemental technologies, and at the same time, it incorporates the least-cost expansion planning of power systems in Japan including other power generation technologies such as conventional coal, oil, and gas fired, and hydro and wind power. The simulation results show the selection of the cost-effective technology developments and the importance of the concentrated investments in them. For example, IGCC, which has a relatively high thermal efficiency, and LNG-CCs of the assumed two efficiencies are the cost-effective investment targets in the no-CO2-regulation case.

  19. Basic space sciences in Africa

    NASA Astrophysics Data System (ADS)

    Abiodun, Adigun Ade; Odingo, Richard S.

    Through space applications, a number of social and economic programmes in education, communications, agro-climatology, weather forecasting and remote sensing are being realized within the African continent. Regional and international organizations and agencies such as the African Remote Sensing Council, the Pan-African Telecommunication Union and the United Nations system have been instrumental in making Africa conscious of the impact and implications of space science and technology on its peoples. The above notwithstanding, discernible interests in space research, to date, in Africa, have been limited to the work on the solar system and on interplanetary matters including satellite tracking, and to the joint African-Indian proposal for the establishment of an International Institute for Space Sciences and Electronics (INISSE) and the construction, in Kenya, of a Giant Equatorial Radio Telescope (GERT). During this ``Transport and Communications Decade in Africa,'' Africa's basic space research efforts would need to initially focus on the appropriateness, modification and adaptation of existing technologies for African conditions with a view to providing economic, reliable and functional services for the continent. These should include elements of electronics, communications, structural and tooling industries, and upper-atmosphere research. The experience of and collaborative work with India, Brazil and Argentina, as well as the roles of African scientists, are examined.

  20. Meeting report: 2012 Caenorhabditis elegans Neurobiology meeting, EMBL Advanced Training Centre, Germany.

    PubMed

    Kearn, James; Dallière, Nicolas; Dillon, James

    2013-06-01

    Some of the finest minds in the field of Caenorhabditis elegans neurobiology were brought together from 14 June to 17 June 2012 in the small, quaint and picturesque German city of Heidelberg for the biannual C. elegans neurobiology conference. Held at the EMBL Advanced Training Centre and wonderfully organised by Diah Yulianti, Jean-Louis Bessereau, Gert Jansen and William Schafer, the meeting contained 62 verbal presentations and hundreds of posters that were displayed around the double-helical walkways that looped throughout the conference centre. Presentations on recent advances in microfluidics, cell ablation and targeted gene expression exemplified the strengths of C. elegans as a model organism, with these advances allowing detailed high-throughput analysis and study. Interesting behaviours that were previously poorly characterised were widely discussed, as were the advantages of C. elegans as a model for neurodevelopment and neurodegeneration and the investigation of neuropeptide function. The examples discussed in this meeting report seek to illustrate the breadth and depth of presentations given on these recurring topics.

  1. Potential Application of Airborne Passive Microwave Observations for Monitoring Inland Flooding Caused by Tropical Cyclones

    NASA Technical Reports Server (NTRS)

    Hood, Robbie E.; Radley, C.D.; LaFontaine, F.J.

    2008-01-01

    Inland flooding from tropical cyclones can be a significant factor in storm-related deaths in the United States and other countries. Information collected during NASA tropical cyclone field studies suggest surface water and flooding induced by tropical cyclone precipitation can be detected and therefore monitored using passive microwave airborne radiometers. In particular, the 10.7 GHz frequency of the NASA Advanced Microwave Precipitation Radiometer (AMPR) flown on the NASA ER-2 has demonstrated high resolution detection of anomalous surface water and flooding in numerous situations. This presentation will highlight the analysis of three cases utilizing primarily satellite and airborne radiometer data. Radiometer data from the 1998 Third Convection and Moisture Experiment (CAMEX-3) are utilized to detect surface water during landfalling Hurricane Georges in both the Dominican Republic and Louisiana. A third case is landfalling Tropical Storm Gert in Eastern Mexico during the Tropical Cloud Systems and Processes (TCSP) experiment in 2005. AMPR data are compared to topographic data and vegetation indices to evaluate the significance of the surface water signature visible in the 10.7 GHz information. The results of this study suggest the benefit of an aircraft 10 GHz radiometer to provide real-time observations of surface water conditions as part of a multi-sensor flood monitoring network.

  2. Fiber optic DTS system application in the research of accumulation possibilities of thermal energy in the rock mass

    NASA Astrophysics Data System (ADS)

    Látal, Jan; Koudelka, Petr; Šiška, Petr; Skapa, Jan; Hanáečk, František; Vašinek, Vladimír; Vitásek, Jan; Hejduk, Stanislav; Bocheza, Jiří

    2011-05-01

    The team of authors tries to provide information on the results of the fiber-optic DTS system application under long-term research of accumulation possibilities of thermal energy in the rock mass in this article. In 2006, was in Ostrava implemented the largest object in the Czech Republic, which is heated by heat pump system. It is a multi-purpose aula at VŠB-TU + CIT (Center for Information Technology). The installed heat pump system consists of ten heat pumps with a total output of 700kW and 110 wells about 140m deep. The applied research is conducted in two measuring polygons ("Big" and "Little" polygon). Simultaneously with fiber-optic DTS system is applied group of PT1000 temperature sensors and Geothermal Response Test (GERT). Fiber-optic DTS system is deployed inside polyethylene PE collector via a special sensory fiber optic cable. The ecological antifreeze mixture, based on the technical spirit, used for the collection and delivery of energy to the rock mass circulates inside of PE collector. PT1000 temperature sensors are placed at certain intervals on the outer side of the PE U-tube within the heat well. The result of application of the fiberoptic DTS system is information about the heat profile of wells, thermal conductivity of the geological environment and the impact of external changes in the thermal wells, along with the accumulation possibilities of thermal energy in the rock mass (over-summer period).

  3. Potential Application of Airborne Passive Microwave Observations for Monitoring Inland Flooding Caused by Tropical Cyclones

    NASA Technical Reports Server (NTRS)

    Hood, Robbie E.; Radley, C.D.; LaFontaine, F.J.

    2008-01-01

    Inland flooding from tropical cyclones can be a significant factor in storm-related deaths in the United States and other countries. Information collected during NASA tropical cyclone field studies suggest surface water and flooding induced by tropical cyclone precipitation can be detected and therefore monitored using passive microwave airborne radiometers. In particular, the 10.7 GHz frequency of the NASA Advanced Microwave Precipitation Radiometer (AMPR) flown on the NASA ER-2 has demonstrated high resolution detection of anomalous surface water and flooding in numerous situations. This presentation will highlight the analysis of three cases utilizing primarily satellite and airborne radiometer data. Radiometer data from the 1998 Third Convection and Moisture Experiment (CAMEX-3) are utilized to detect surface water during landfalling Hurricane Georges in both the Dominican Republic and Louisiana. A third case is landfalling Tropical Storm Gert in Eastern Mexico during the Tropical Cloud Systems and Processes (TCSP) experiment in 2005. AMPR data are compared to topographic data and vegetation indices to evaluate the significance of the surface water signature visible in the 10.7 GHz information. The results of this study suggest the benefit of an aircraft 10 GHz radiometer to provide real-time observations of surface water conditions as part of a multi-sensor flood monitoring network.

  4. Automated Impedance Tomography for Monitoring Permeable Reactive Barrier Health

    SciTech Connect

    LaBrecque, D J; Adkins, P L

    2009-07-02

    The objective of this research was the development of an autonomous, automated electrical geophysical monitoring system which allows for near real-time assessment of Permeable Reactive Barrier (PRB) health and aging and which provides this assessment through a web-based interface to site operators, owners and regulatory agencies. Field studies were performed at four existing PRB sites; (1) a uranium tailing site near Monticello, Utah, (2) the DOE complex at Kansas City, Missouri, (3) the Denver Federal Center in Denver, Colorado and (4) the Asarco Smelter site in East Helena, Montana. Preliminary surface data over the PRB sites were collected (in December, 2005). After the initial round of data collection, the plan was modified to include studies inside the barriers in order to better understand barrier aging processes. In September 2006 an autonomous data collection system was designed and installed at the EPA PRB and the electrode setups in the barrier were revised and three new vertical electrode arrays were placed in dedicated boreholes which were in direct contact with the PRB material. Final data were collected at the Kansas City, Denver and Monticello, Utah PRB sites in the fall of 2007. At the Asarco Smelter site in East Helena, Montana, nearly continuous data was collected by the autonomous monitoring system from June 2006 to November 2007. This data provided us with a picture of the evolution of the barrier, enabling us to examine barrier changes more precisely and determine whether these changes are due to installation issues or are normal barrier aging. Two rounds of laboratory experiments were carried out during the project. We conducted column experiments to investigate the effect of mineralogy on the electrical signatures resulting from iron corrosion and mineral precipitation in zero valent iron (ZVI) columns. In the second round of laboratory experiments we observed the electrical response from simulation of actual field PRBs at two sites: the

  5. LIPID CLASS, CAROTENOID, AND TOXIN DYNAMICS OF KARENIA BREVIS (DINOPHYCEAE) DURING DIEL VERTICAL MIGRATION(1).

    PubMed

    Schaeffer, Blake A; Kamykowski, Daniel; McKay, Laurie; Sinclair, Geoff; Milligan, Edward

    2009-02-01

    The internal lipid, carotenoid, and toxin concentrations of Karenia brevis (C. C. Davis) Gert Hansen and Moestrup are influenced by its ability to use ambient light and nutrients for growth and reproduction. This study investigated changes in K. brevis toxicity, lipid class, and carotenoid concentrations in low-light, nitrate-replete (250 μmol quanta · m(-2)  · s(-1) , 80 μM NO3 ); high-light, nitrate-replete (960 μmol quanta · m(-2)  · s(-1) , 80 μM NO3 ); and high-light, nitrate-reduced (960 μmol quanta · m(-2)  · s(-1) , <5 μM NO3 ) mesocosms. Reverse-phase HPLC quantified the epoxidation state (EPS) of the xanthophyll-cycle pigments diadinoxanthin and diatoxanthin, and a Chromarod Iatroscan thin layer chromatography/flame ionization detection (TLC/FID) system quantified changes in lipid class concentrations. EPS did not exceed 0.20 in the low-light mesocosm, but increased to 0.65 in the high-light mesocosms. Triacylglycerol and monogalactosyldiacylglycerol (MGDG) were the largest lipid classes consisting of 9.3% to 48.7% and 37.3% to 69.7% of total lipid, respectively. Both lipid classes also experienced the greatest concentration changes in high-light experiments. K. brevis increased EPS and toxin concentrations while decreasing its lipid concentrations under high light. K. brevis may mobilize its toxins into the surrounding environment by reducing lipid concentrations, such as sterols, limiting competition, or toxins are released because lipids are decreased in high light, reducing any protective mechanism against their own toxins. © 2009 Phycological Society of America.

  6. Imidazole receptors. 22-24 July 1998, Bonn, Germany.

    PubMed

    Head, G A

    1998-10-01

    This two-day symposium was the third international meeting on imidazoline receptors and an official satellite of the XIIIth International Congress of Pharmacology, held the following week in Munich. The meeting was very well-organized by the local hosts, Manfred Gothert and Gert Molderings (Pharmacology Department, Bonn University, Germany). With approximately 100 participants from 13 countries, representing Europe, North and South America, and Australia, the symposium was slightly smaller than the 1994 meeting in New York, but similar in size to the 1992 inaugural meeting in Paris. What stood out from this meeting was the considerable maturation in the confidence that imidazoline-binding sites are functional receptors. Also, the therapeutic implications have dramatically diversified in the last four years. It is now thought that these receptors play a role in hypertension, pancreatic function, cell proliferation, regulation of body fat, neuroprotection, inflammation and some psychiatric disorders, such as depression. This may partly explain the reluctance to further classify imidazoline subtypes, while the previous I1 and I2 classification is now clearly inadequate to satisfy the four to five subtypes that were described. The format of the meeting was similar to those held previously with 27 invited state of the art presentations divided into seven sessions covering topics from molecular and cellular biology, endogenous ligands, receptor identification and classification through functional studies and pathophysiology and their relevance. Over 40 submitted posters were displayed for the entire meeting and a new addition to the format was an evening set aside for three concurrent poster discussion sessions, which provided each participant with the opportunity to present work to a wider audience. This review will focus on the major developments presented at the symposium following the thematic outline of the program.

  7. Development of the clinic of pulmonology and allergy.

    PubMed

    Dokic, D

    2013-01-01

    University Pulmology and Allergy Clinic was founded in 1975 when the Depertment of Internal Medicine, directed by Prof. Dr. Dimitar Arsov, later member of the Macedonian Academy of Sciencies and Arts, was divided into eight separate and independent clinics. The first head of the Pulmonology and Allergy Clinic was Prof. Dr. Ljubomir Kotevski. He had a very difficult goal: to establish and further develop the newly formed clinic. The Clinic flourished and became one of the leading Clinics in the Clinical Centre during the directorship of Prof. dr. Dejan Dokic.. He completely rebuilt and refurbished the Clinic, which became a modern Clinic providing excellent working conditions for the employees and, most importantly, provided a first class service to the patients. During his mandate he obtained a grant from the Japanese Government worth $1,000,000 which was used to obtain a new, modern and sophisticated medical equipment. Since the establishment of the clinic, many national and international scientific projects were carried out and many scientific papers were published as well as many monographs, and chapters in scientific books. As a result of continuous education, of the total number of 24 doctors there are 16 subspecialists in respiratory medicine and 4 specialists in internal medicine. There are 9 professors in internal medicine at the University of Pulmonology and Allergy Clinic lecturing at the Medical Faculty in Skopje. The University Pulmonology and Allergy Clinic has an international reputation due to many contacts with famous European Institutions. All these international interrelations have resulted in honouring 3 professors: Prof. Dr. Gert Kunkel from Berlin, Germany, Prof. Dr. Robert Loddenkemper from Berlin, Germany and Prof. Dr. Peter Howard from Southampton, UK.

  8. Comparison of 37 months global net radiation flux derived from PICARD-BOS over the same period observations of CERES and ARGO

    NASA Astrophysics Data System (ADS)

    Zhu, Ping; Wild, Martin

    2016-04-01

    The absolute level of the global net radiation flux (NRF) is fixed at the level of [0.5-1.0] Wm-2 based on the ocean heat content measurements [1]. The space derived global NRF is at the same order of magnitude than the ocean [2]. Considering the atmosphere has a negligible effects on the global NRF determination, the surface global NRF is consistent with the values determined from space [3]. Instead of studying the absolute level of the global NRF, we focus on the interannual variation of global net radiation flux, which were derived from the PICARD-BOS experiment and its comparison with values over the same period but obtained from the NASA-CERES system and inferred from the ocean heat content survey by ARGO network. [1] Allan, Richard P., Chunlei Liu, Norman G. Loeb, Matthew D. Palmer, Malcolm Roberts, Doug Smith, and Pier-Luigi Vidale (2014), Changes in global net radiative imbalance 1985-2012, Geophysical Research Letters, 41 (no.15), 5588-5597. [2] Loeb, Norman G., John M. Lyman, Gregory C. Johnson, Richard P. Allan, David R. Doelling, Takmeng Wong, Brian J. Soden, and Graeme L. Stephens (2012), Observed changes in top-of-the-atmosphere radiation and upper-ocean heating consistent within uncertainty, Nature Geoscience, 5 (no.2), 110-113. [3] Wild, Martin, Doris Folini, Maria Z. Hakuba, Christoph Schar, Sonia I. Seneviratne, Seiji Kato, David Rutan, Christof Ammann, Eric F. Wood, and Gert Konig-Langlo (2015), the energy balance over land and oceans: an assessment based on direct observations and CMIP5 climate models, Climate Dynamics, 44 (no.11-12), 3393-3429.

  9. Overview of the Field Phase of the NASA Tropical Cloud Systems and Processes (TCSP)Experiment

    NASA Technical Reports Server (NTRS)

    Hood, Robbie E.; Zipser, Edward; Heymsfield, Gerald M.; Kakar, Ramesh; Halverson Jeffery; Rogers, Robert; Black, Michael

    2006-01-01

    The Tropical Cloud Systems and Processes experiment is sponsored by the National Aeronautics and Space Administration (NASA) to investigate characteristics of tropical cyclone genesis, rapid intensification and rainfall using a three-pronged approach that emphasizes satellite information, suborbital observations and numerical model simulations. Research goals include demonstration and assessment of new technology, improvements to numerical model parameterizations, and advancements in data assimilation techniques. The field phase of the experiment was based in Costa Rica during July 2005. A fully instrumented NASA ER-2 high altitude airplane was deployed with Doppler radar, passive microwave instrumentation, lightning and electric field sensors and an airborne simulator of visible and infrared satellite sensors. Other assets brought to TCSP were a low flying uninhabited aerial vehicle, and a surface-based radiosonde network. In partnership with the Intensity Forecasting Experiment of the National Oceanic and Atmospheric Administration (NOAA) Hurricane Research Division, two NOAA P-3 aircraft instrumented with radar, passive microwave, microphysical, and dropsonde instrumentation were also deployed to Costa Rica. The field phase of TCSP was conducted in Costa Rica to take advantage of the geographically compact tropical cyclone genesis region of the Eastern Pacific Ocean near Central America. However, the unusual 2005 hurricane season provided numerous opportunities to sample tropical cyclone development and intensification in the Caribbean Sea and Gulf of Mexico as well. Development of Hurricane Dennis and Tropical Storm Gert were each investigated over several days in addition to Hurricane Emily as it was close to Saffir-Simpson Category 5 intensity. An overview of the characteristics of these storms along with the pregenesis environment of Tropical Storm Eugene in the Eastern Pacific will be presented.

  10. Measurement of Persistent Organic Pollutants (POPs) in plastic resin pellets from remote islands : Toward establishment of baseline level for International Pellet Watch

    NASA Astrophysics Data System (ADS)

    Takada, H.; Heskett, M.; Yamashita, R.; Yuyama, M.; Itoh, M.; Geok, Y. B.; Ogata, Y.

    2011-12-01

    Plastic resin pellets collected from remote islands in open oceans (Canary, St. Helena, Cocos, Hawaii, Maui Islands and Barbados) were sorted and yellowing polyethylene (PE) pellets were measured for polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane and the degradation products (DDTs), and hexachlorocyclohexanes (HCHs) by gas chromatograph equipped with mass spectrometer (GC-MS) and with electron capture detector (GC-ECD). PCBs were detected from all the pellet samples, confirming the global dispersion of PCBs. Median concentrations of PCBs (sum of 13 congeners : CB-66, CB-101, CB-110, CB-118, CB-105, CB-149, CB-153, CB-138, CB-128, CB-187, CB-180, CB-170, CB-206) in the remote island pellets ranged from 0.1 to 10 ng/g-pellet. These were one to three orders of magnitude lower than those observed for pellets from industrialized coastal zones (hundreds ng/g in Los Angeles, Boston, Tokyo; Ogata et al., 2009). Because these remote islands are far (>100 km) from industrialized zones, these concentrations (i.e., 0.1 to 10 ng/g-pellet) can be regarded as global "baseline" level of PCB pollution. Concentrations of DDTs in the remote island pellets ranged from 0.2 to 5.5 ng/g-pellet. At some locations, DDT was dominant over the degradation products (DDE and DDD), suggesting current usage of the pesticides in the islands. HCHs concentrations were 0.4 - 1.8 ng/g-pellet and lower than PCBs and DDTs, except for St. Helena Island at 18.8 ng/g-pellet where the current usage of the pesticides are of concern. The analyses of pellets from the remote islands provided "baseline" level of POPs (PCBs < 10 ng/g-pellet, DDTs < 6 ng/g-pellet, HCHs < 2 ng/g-pellet). However, the present samples were from tropical and subtropical areas. To establish global baseline, especially to understand the effects of global distillation, pellet samples from remote islands in higher latitude regions are necessary. From the eco-toxicological point of view, the fact that sporadic high

  11. The rogue wave of 27 August 1969 at Dwarskersbos, South Africa: Field survey and simulation as a meteo-tsunami

    NASA Astrophysics Data System (ADS)

    Okal, Emile; de Beer, Coenie; Visser, Johan; Kalligeris, Nikos

    2013-04-01

    In the early hours of Wednesday, 27 August 1969, the village of Dwarskersbos, Western Cape, South Africa, was inundated by a wave which flooded houses and damaged small boats. This small tsunami took place in the absence of any seismic source or extreme weather, and its origin has remained mysterious. In September 2010, we conducted a field survey based on the interview of nine elderly witnesses still living in the village, using techniques developed earlier for the study of the 1946 Aleutian and 1956 Greek tsunamis. We measured 13 locations, with run-up reaching 2.9 m for a maximum inundation of 260 m from the sea shore. The most remarkable aspect of our dataset is the extreme concentration of the flooding along a stretch of coastline of less than 2 km. In particular, the tsunami did not reach the communities located on the opposite side of St. Helena's Bay, nor did it affect Elands Bay and Lamberts Bay, respectively 43 and 68 km to the North. In order to investigate the possible origin of the Dwarskersbos tsunami, we first simulated an underwater landslide taking place in a canyon 20 km Northwest of Shelley Point, using the MOST code. This model predicts comparable amplitudes along most of the regional coastlines, and thus fails to explain the documented concentration at Dwarskersbos. By contrast, we explore a meteorological origin for the event by simulating the coupling between a possible squall (modeled as a steep pressure front) propagating over St. Helena's Bay and the oceanic column, using Proudman's [1953] original model, as applied by Platzman [1958] to the case of the 1954 Chicago rogue wave. We find that a front moving at 15 m/s in the azimuth N100E can resonate exclusively with the shallow bathymetry off Dwarskersbos, and thus explain most of the features revealed by our survey. This interpretation would be in contrast to the case of the tsunami of 21 August 2008, for which a comprehensive seriesof maregraphs along a 900-km stretch of coastline

  12. On the configurations of the Atlantic Niño phenomenon under negative AMO phases

    NASA Astrophysics Data System (ADS)

    Martin-Rey, Marta; Rodríguez de Fonseca, Belen; Polo, Irene; Losada, Teresa; Lazar, Alban

    2016-04-01

    An air-sea coupled mode of inter-annual variability akin to ENSO emerges in the tropical Atlantic basin, named as Atlantic Niño. The teleconnections of the Atlantic Niño phenomenon have changed during recent decades, coinciding with an alteration of its spatial configuration. Previous studies have suggested that the background state could favour particular atmospheric forcings and could also contribute to generate different variability modes. Here, we demonstrate that two different Atlantic Niño patterns coexist in the tropical Atlantic basin during certain decades, coinciding with a negative phase of the Atlantic Multidecadal Oscillation (AMO). The leading mode, Basin-Wide (BW) Atlantic Niño, is characterized by positive SST anomalies covering the entire tropical Atlantic and the second mode, Dipolar (D) Atlantic Niño, presents an equatorial warming flanked by negative SST anomalies in north and south Tropical Atlantic. These modes are driven by different wind patterns, controlled by the Subtropical High Pressure Systems. The BW-Atlantic Niño is preceded by a weakening of both Azores and Sta Helena High, which induces a general reduction of the tropical trades and anomalous wind convergence in the equatorial band. On the other hand, the D-Atlantic Niño is associated with a strengthening of Azores High and a weakening of Sta Helena High, given rise to a meridional Sea Level Pressure (SLP) gradient that intensifies the subtropical trades and generate anomalous trans-equatorial winds along the equatorial band. Both modes seem to be forced by an ENSO-like signal emanating from the Pacific, but with different atmospheric response over the Atlantic. It could be attributed to the changes in the mean state during negative AMO phases. For these decades, shallower thermocline conditions, together with an increase of the oceanic variability (SST and thermocline) in the tropical Atlantic could contribute to the generation of both Atlantic Niño modes. Furthermore, a

  13. Air-sea interactions and oceanic processes in the development of different Atlantic Niño patterns

    NASA Astrophysics Data System (ADS)

    Martin-Rey, Marta; Polo, Irene; Rodríguez-Fonseca, Belén; Lazar, Alban

    2016-04-01

    Atlantic Niño is the leading mode of inter-annual variability of the tropical Atlantic basin at inter-annual time scales. A recent study has put forward that two different Atlantic Niño patterns co-exist in the tropical Atlantic basin during negative phases of the Atlantic Multidecadal Oscillation. The leading mode, Basin-Wide (BW) Atlantic Niño is characterized by an anomalous warming extended along the whole tropical basin. The second mode, the Dipolar (D) Atlantic Niño presents positive Sea Surface Temperature (SST) anomalies in the central-eastern equatorial band, surrounded by negative ones in the North and South tropical Atlantic. The BW Atlantic Niño is associated with a weakening of both Azores and Sta Helena High, which reduces the tropical trades during previous autumn-winter. On the other hand, the D-Atlantic Niño is related to a strengthening of the Azores and a weakening of Helena High given rise to a meridional Sea Level Pressure (SLP) gradient that originates an intensification of the subtropical trades and anomalous westerlies along the equatorial band. This different wind forcing suggests that different oceanic processes could act in the development of the BW and D Atlantic Niño patterns. For this reason, an inter-annual simulation with the ocean NEMO model has been performed and the heat budget analysis has been analysed for each Atlantic Niño mode. The results suggest that the two Atlantic Nino configurations have different timing. The heat budget analysis reveals that BW Atlantic Nino SST pattern is due to anomalous air-sea heat fluxes in the south tropical and western equatorial Atlantic during the autumn-winter, while vertical processes are responsible of the warming in the central and eastern part of the basin during late-winter and spring. For the D-Atlantic Nino, the subtropical cooling is attributed to turbulent heat fluxes, the equatorial SST signal is mainly forced by vertical entrainment. The role of the oceanic waves in the

  14. Geophysical Character and Geochemical Evolution of the Mesoproterozoic Figueira Branca Intrusive Suite, SW Amazon Craton (Brazil)

    NASA Astrophysics Data System (ADS)

    Louro, Vinicius; Cawood, Peter; Mantovani, Marta

    2016-04-01

    The Jauru Terrain hosts the Figueira Branca Intrusive Suite (FBS) in the SW of the Amazon Craton (Brazil). The FBS is a series of 1425 Ma layered mafic intrusions, previously interpreted as anorogenic. The FBS area is located in foreland to the Santa Helena orogen, formed by the subduction of the Rio Alegre Terrain under the Jauru Terrain. Potential field methods (magnetic and gravity), gamma-ray spectrometry, geochemical and isotope data were used to characterize and to model the extent of FBS magmatism, the distribution of faults and shear zones in the area, to evaluate affinities of the magmatic activity, and the relation between the FBS and the Santa Helena orogen. The geophysical methods identified three anomalies corresponding with FBS outcrops. A fourth anomaly with significantly higher amplitude was observed to the north of the three anomalies. From south to north, the anomalies were named Indiavaí, Azteca, Figueira Branca and Jauru. These anomalies were modeled and indicated a northwest-southeast trend, parallel to regional shear zones. The gamma-ray data enabled the collection of 50 samples from the FBS rocks, the Alto Jauru group that hosts the FBS, from nearby intrusive suites, and the Rio Alegre Terrain. The 30 freshest samples were analyzed by X-ray fluorescence for oxides and some trace elements, 20 by ICP-MS for Rare-Earth Elements and 10 for Nd-Sr isotope analyses. The FBS samples were gabbros and gabbro-norites with Nb/Yb-Th/Yb and TiO2/Yb-Nb/Yb ratios indicating varying degrees of crustal interaction. The TiO2/Yb-Nb/Yb data suggested a subduction related component and the ɛNd-ɛSr indicated a juvenile source. Samples from coeval adjacent intermediate magma suites displayed similar characteristics, which suggest derivation from a bimodal source probably related with the subduction of the Rio Alegre Terrain. We interpreted the tectonic setting of the FBS as a result of a roll-back of the subducted slab, which resulted in rejuvenation of the

  15. Water-quality, bed-sediment, and biological data, for streams in the upper Prickly Pear Creek watershed, Montana, 2001

    USGS Publications Warehouse

    Klein, Terry L.; Thamke, Joanna N.; Harper, David D.; Farag, Aida M.; Nimick, David A.; Fey, David L.

    2003-01-01

    The upper Prickly Pear Creek watershed encompasses the upstream 15 miles of Prickly Pear Creek, south of Helena, Montana (fig. 1). The headwaters of Prickly Pear Creek and its tributaries (Beavertown Creek, Clancy Creek, Dutchman Creek, Golconda Creek, Lump Gulch, Spring Creek, and Warm Springs Creek) are primarily in the Helena National Forest, whereas the central part of the watershed primarily is within either Bureau of Land Management (BLM) or privately owned property. Three mining districts are present in the upper Prickly Pear Creek watershed: Alhambra, Clancy, and Colorado. Numerous prospects, adits, tailings piles, mills, dredge piles, and mines (mostly inactive) are located throughout the watershed. These districts contain polymetallic (Ag, Au, Cu, Pb, Zn) vein deposits and precious-metal (Au-Ag) vein and disseminated deposits that were exploited beginning in the 1860’s. Placer Au deposits in the major streams were extensively mined in the late 1800’s and early 1900’s.As part of a cooperative effort with Federal land management agencies, the U.S. Geological Survey (USGS) is currently using an integrated approach to investigate two mining impacted watersheds in the western United States (the Animas River in Colorado and the Boulder River in Montana). These studies provide the USDA Forest Service and BLM scientific data for implementing informed land-management decisions regarding cleanup of abandoned mine lands within each watershed. A similar integrated-science approach will be used to characterize the upper Prickly Pear Creek watershed with respect to water and streambed sediment chemistry, aquatic biota, and geologic framework. This integrated database presents data that will be used to identify important pathways of metals movement and biological impacts, thereby guiding resource management decisions of land-managers in several publications that are in preparation. Watershed-level characterization in terms of water quality, streambed sediment

  16. Short-term variability during an anchor station study in the southern Benguela upwelling system: Abundance, distribution and estimated production of mesozooplankton with special reference to Calanoides carinatus (Krøyer, 1849)

    NASA Astrophysics Data System (ADS)

    Verheye, Hans M.

    Daytime zooplankton samples collected at a fixed station position in St Helena Bay during a 27-day time series in March-April 1987 were used to describe the variability in the vertical distribution, abundance and population age structure of Calanoides carinatus in response to upwelling-related processes, and to provide an estimate of their production. The vertical distribution of C. carinatus was characterized by ontogenetic layering of copepodites and adults. The thermocline delimited the maximum depth of young copepodites (CI-CIII). Older stages avoided low-oxygen (<1ml O 2l -1) bottom water. C. carinatus was usually not associated with the chlorophyll a maximum. The spatial segregation of young and older stages is briefly discussed in relation to differential feeding habits and diel vertical migration behaviour. The demographic structure of the C. carinatus population showed evidence of a stable age distribution of copepodites and adults during the first of two upwelling cycles observed during the study. Overall mean abundance was 360 animals m -3. However, during the second upwelling cycle their mean abundance was reduced to 183 animals m -3 and adults dominated the population by 54%. These changes in abundance and age structure are discussed in relation to upwelling-induced advective processes. Surface-dwelling young copepodites (CI-CIII) are thought to be transported away from the study site, while re-seeding of the reduced nearshore population probably took place through advection of diapausal pre-adults (CV) in the upwelled water. Daily production of juvenile C. carinatus was estimated at 0.7 mg C m -3d -1 which, combined with an egg production of 1.0mg C m -3d -1 by addult females, is equivalent to 2% of the observed daily primary production. The mean P:B ratio for the copepodite stages was 0.167d -1. The role of this dominant copepod and the mesozooplankton in the carbon budget in St Helena Bay is discussed. Consumption by mesozooplankters was estimated

  17. A modeling study of climate variability over western and eastern Africa

    NASA Astrophysics Data System (ADS)

    Sun, Liqiang

    1997-09-01

    This dissertation is composed of six separate papers linked by a common purpose: to investigate the physical mechanisms associated with the climate variability over western and eastern Africa. This study is carried out on both monthly and seasonal time-scales. In Chapter 2, the NASA GEOS-1 GCM was adopted to investigate the role of orography in determining the western African climate. The moist southwesterlies emanating from the Atlas-Ahaggar orographic trough and the dry hot northeasterlies originating from the corresponding orographic windward ridge tend to converge thus re-enforcing the ITCZ over the Sahel. A zonal orographic ridge is generated along the coastal region of West Africa. Thus a permanent orographic induced rainfall dipole pattern over western Africa is produced. A weaker orographic induced rainfall dipole pattern across West Africa is simulated in response to the 1973 SST anomaly pattern. Consequently, wetter conditions along the coastal region and rainfall deficits over the Sahel are produced, which are consistent with observations. In Chapter 3, we customized the NCAR Regional Climate Model (RegCM2) for eastern Africa. The physics of RegCM2 has been improved. In Chapter 4, the model simulated both large-scale and mesoscale features during the autumn rains of 1988. In Chapter 5, we simulated the interannual variability of precipitation during autumn rains between 1982 and 1993. The stronger Arabian High appears to be responsible for earlier onset of rains, and the enhanced St. Helena and weaker Mascarene Highs lead to positive precipitation anomalies over Tanzania. The enhanced St. Helena High also leads to positive precipitation anomalies over Angola plateau. Strong connection between precipitation anomalies over Lake Victoria and ENSO exists. El Nino events usually lead to positive precipitation anomalies over the Turkana Channel. Precipitation over western Kenya Highlands is significantly affected by Lake Victoria and the Arabian High. The

  18. Analysis and inundation mapping of the April-May 2011 flood at selected locations in northern and eastern Arkansas and southern Missouri

    USGS Publications Warehouse

    Westerman, Drew A.; Merriman, Katherine R.; De Lanois, Jeanne L.; Berenbrock, Charles

    2013-01-01

    Precipitation that fell from April 19 through May 3, 2011, resulted in widespread flooding across northern and eastern Arkansas and southern Missouri. The first storm produced a total of approximately 16 inches of precipitation over an 8-day period, and the following storms produced as much as 12 inches of precipitation over a 2-day period. Moderate to major flooding occurred quickly along many streams within Arkansas and Missouri (including the Black, Cache, Illinois, St. Francis, and White Rivers) at levels that had not been seen since the historic 1927 floods. The 2011 flood claimed an estimated 21 lives in Arkansas and Missouri, and damage caused by the flooding resulted in a Federal Disaster Declaration for 59 Arkansas counties that received Federal or State assistance. To further the goal of documenting and understanding floods, the U.S. Geological Survey, in cooperation with the Federal Emergency Management Agency, the U.S. Army Corps of Engineers–Little Rock and Memphis Districts, and Arkansas Natural Resources Commission, conducted a study to summarize meteorological and hydrological conditions before the flood; computed flood-peak magnitudes for 39 streamgages; estimated annual exceedance probabilities for 37 of those streamgages; determined the joint probabilities for 11 streamgages paired to the Mississippi River at Helena, Arkansas, which refers to the probability that locations on two paired streams simultaneously experience floods of a magnitude greater than or equal to a given annual exceedance probability; collected high-water marks; constructed flood-peak inundation maps showing maximum flood extent and water depths; and summarized flood damages and effects. For the period of record used in this report, peak-of-record stage occurred at 24 of the 39 streamgages, and peak-of-record streamflow occurred at 13 of the 30 streamgages where streamflow was determined. Annual exceedance probabilities were estimated to be less than 0.5 percent at three

  19. Bewehrte Betonbauteile unter Betriebsbedingungen: Forschungsbericht

    NASA Astrophysics Data System (ADS)

    Eligehausen, Rolf; Kordina, Karl; Schießl, Peter

    2000-09-01

    Vorwort. Teil I: Rißbreiten (Gert König) 1 Ein mechanisches Modell zur Erhöhung der Vorhersagegenauigkeit über die Rißbreiten unter Betriebsbedingungen (Gert König und Michael Fischer). 1.1 Einleitung und Zielsetzung. 1.2 Versuchsprogramm. 1.3 Meßtechnik. 1.4 Belastung und Versuchsdurchführung. 1.5 Literatur. 2 Rißbreiten und Verformungszunahme vorgespannter Bauteile unter wiederholter Last - und Zwangbeanspruchung (Gert König und Michael Fischer). 2.1 Einleitung und Zielsetzung. 2.2 Versuchsprogramm. 2.3 Auswertung. 2.4 Ausblick. 2.5 Literatur. 3 Rißverhalten von Beton bei plötzlicher Abkühlung (Viktor Mechtcherine und Harald S. Müller). 3.1 Einleitung. 3.2 Experimentelle Untersuchungen. 3.3 Formulierung eines Stoffgesetzes für thermisch beanspruchten Beton. 3.4 Riß entwicklung in einer Betonplatte unter Temperaturschock. 3.5 Zusammenfassung. 3.6 Literatur. 4 Stahlfaserbeton unter Betriebsbedingungen bei Dauerbeanspruchung (Bo Soon Kang, Bernd Schnütgen und Friedhelm Stangenberg). 4.1 Einleitung. 4.2 Wirkung von Stahlfasern im Beton. 4.3 Versuchsprogramm. 4.4 Untersuchungen zum Verbundverhalten. 4.5 Untersuchungen zum Verhalten unter Biegebeanspruchung. 4.6 Theoretische Untersuchungen. 4.7 Literatur. 5 Experimentelle Untersuchungen an Stahlbeton-Zugkörpern unter wiederholter Belastung zur Ermittlung des versteifenden Einflusses der Mitwirkung des Betons zwischen den Rissen (Petra Seibel und Gerhard Mehlhorn). 5.1 Einleitung. 5.2 Ansatz zur Bestimmung der Mitwirkung des Betons zwischen den Rissen nach Eurocode 2, Model Code 90 und Günther. 5.3 Experimentelle Untersuchungen. 5.4 Ergebnisse. 5.5 Zusammenfassung. 5.6 Literatur. 6 Riß- und Verformungsverhalten von vorgefertigten Spannbetonträgern unter Betriebsbedingungen bei besonderer Berücksichtigung des Betonalters (Monika Maske, Heinz Meichsner und Lothar Schubert). 6.1 Einleitung. 6.2 Beschreibung der Fertigteilträger. 6.3 Belastungsversuche. 6.4 Ergebnisse. 6.5 Zusammenfassung. 6

  20. Relationship between spatial distribution of chaetognaths and hydrographic conditions around seamounts and islands of the tropical southwestern Atlantic.

    PubMed

    Souza, Christiane S de; Luz, Joana A G; Mafalda, Paulo O

    2014-09-01

    Relationship between spatial distribution of chaetognaths and hydrographic conditions around seamounts and islands off Northeastern Brazil were analyzed from 133 oceanographic stations during the months of January - April of 1997 and April - July of 1998. Oblique zooplankton tows, using 50 cm diameter Bongo nets with 500µm mesh with a flowmeter to determine the filtered volume, were carried out to a maximum of 200m depth. The Superficial Equatorial Water, which had a salinity > 36 PSU and temperature > 20°C, occupied the top 80 to 200m depth. Below this water mass was the South Atlantic Central Water with salinity ranging from 34.5 to 36 PSU and temperature from 6 to 20°C. The community of chaetognaths showed six species: Pterosagitta draco, Flaccisagitta enflata, Flaccisagitta hexaptera, Pseudosagitta lyra, Serratosagitta serratodentata, and Sagitta helenae. Of these species, F. enflata was the most abundant (32.05% in 1997 and 42.18% in 1998) and the most frequent (87.88% in 1997 and 95% in 1998) during both periods. A mesopelagic specie was identified (P. lyra). This specie was more abundant in 1997 (3.42%), when the upwelling was more intense. P. lyra occurred in 22% of the samples during 1997. The abundance of F. enflata, an epiplanktonic species, increased, associated with greater water-column stability.

  1. Patterns of sedentary behavior and compliance with public health recommendations in Spanish adolescents: the AFINOS study.

    PubMed

    Martínez Gómez, David; Veiga, Oscar L; Zapatera, Belén; Cabanas-Sánchez, Verónica; Gomez-Martinez, Sonia; Martinez-Hernández, David; Marcos, Ascensión

    2012-12-01

    The aims of the present study were: (i) describe patterns of sedentary behavior in Spanish adolescents; and (ii) determine the proportion of adolescents that do not meet the public health recommendations for sedentary behavior. This study comprised 1,724 Spanish adolescents (882 girls), aged 13 to 16 years. Patterns of sedentary behavior (TV viewing, use of computer games, console games and surfing the Internet) were assessed using the HELENA sedentary behavior questionnaire. The total proportion of adolescents watching TV, using computer and console games, and surfing the internet for more than two hours daily was 24%, 9%, 7%, and 17%, respectively, on weekdays, and 50%, 22%, 16%, and 35%, respectively, on weekends. Over 63% of the adolescents from the study did not meet the recommendation for sedentary behavior (< 2 hours daily screen time) on weekdays and 87% did not comply with this recommendation on weekends. Since sedentary behavior plays a key role in adolescent health, public health interventions in Spain that take these factors into consideration are needed.

  2. Multielement chemical and statistical analyses from a uranium hydrogeochemical and stream-sediment survey in and near the Elkhorn Mountains, Jefferson County, Montana; Part II, Stream sediments

    USGS Publications Warehouse

    Suits, V.J.; Wenrich, K.J.

    1982-01-01

    Fifty-two stream-sediment samples, collected from an area south of Helena, Jefferson County, Montana, were sieved into two size fractions (50 ppm for the fine fraction) were encountered in samples from the Warm Springs Creek drainage area, along Prickly Pear Creek near Welmer and Golconda Creeks and along Muskrat Creek. All groups showed a significant correlation at the 99 percent confidence level (r between 0.73 and 0.77) between U and Th. Uranium was found to correlate significantly only with Th (as mentioned above) and with -Ni in the fine fraction of the volcanics group. U correlates significantly with -Al2O3, Ba, organic C, -K2O, -Sr and Y in both size fractions for the Boulder batholith. Correlations between U and each of several elements differ for the fine and coarse fractions of the Boulder batholith group, suggesting that the U distribution in these stream sediments is in large part controlled by grain size. Correlations were found between U and CaO, Cr, Fe203, -Na2O, Sc, -SiO2, TiO2, Yb and Zr in the coarse fraction but not in the fine fraction. U correlates weakly (to the 90% confidence level, crc<.37) with -Co and -Cu in the fine but not the coarse fraction. These results are compared to a previous study in the northern Absaroka mountains. Correlation coefficients between all other elements determined from these samples are also shown in Tables 12 to 15.

  3. Measurement of persistent organic pollutants (POPs) in plastic resin pellets from remote islands: toward establishment of background concentrations for International Pellet Watch.

    PubMed

    Heskett, Marvin; Takada, Hideshige; Yamashita, Rei; Yuyama, Masaki; Ito, Maki; Geok, Yeo Bee; Ogata, Yuko; Kwan, Charita; Heckhausen, Angelika; Taylor, Heidi; Powell, Taj; Morishige, Carey; Young, Doug; Patterson, Hugh; Robertson, Bryson; Bailey, Elizabeth; Mermoz, Jorge

    2012-02-01

    Plastic resin pellets collected from remote islands in the Pacific, Atlantic, and Indian Oceans and the Caribbean Sea were analyzed for polychlorinated biphenyls (PCBs), dichloro-diphenyltrichloroethane and its degradation products (DDTs), and hexachlorocyclohexanes (HCHs). Concentrations of PCBs (sum of 13 congeners) in the pellets were 0.1-9.9 ng/g-pellet. These were 1-3 orders of magnitude smaller than those observed in pellets from industrialized coastal shores. Concentrations of DDTs in the pellets were 0.8-4.1 ng/g-pellet. HCH concentrations were 0.6-1.7 ng/g-pellet, except for 19.3 ng/g-pellet on St. Helena, where current use of lindane is likely influence. This study provides background levels of POPs (PCBs<10 ng/g-pellet, DDTs <4 ng/g-pellet, HCHs <2 ng/g-pellet) for International Pellet Watch. Sporadic large concentrations of POPs were found in some pellet samples from remote islands and should be considered in future assessments of pollutants on plastic debris.

  4. A compilation of spatial digital databases for selected U.S. Geological Survey nonfuel mineral resource assessments for parts of Idaho and Montana

    USGS Publications Warehouse

    Carlson, Mary H.; Zientek, Michael L.; Causey, J. Douglas; Kayser, Helen Z.; Spanski, Gregory T.; Wilson, Anna B.; Van Gosen, Bradley S.; Trautwein, Charles M.

    2007-01-01

    This report compiles selected results from 13 U.S. Geological Survey (USGS) mineral resource assessment studies conducted in Idaho and Montana into consistent spatial databases that can be used in a geographic information system. The 183 spatial databases represent areas of mineral potential delineated in these studies and include attributes on mineral deposit type, level of mineral potential, certainty, and a reference. The assessments were conducted for five 1? x 2? quadrangles (Butte, Challis, Choteau, Dillon, and Wallace), several U.S. Forest Service (USFS) National Forests (including Challis, Custer, Gallatin, Helena, and Payette), and one Bureau of Land Management (BLM) Resource Area (Dillon). The data contained in the spatial databases are based on published information: no new interpretations are made. This digital compilation is part of an ongoing effort to provide mineral resource information formatted for use in spatial analysis. In particular, this is one of several reports prepared to address USFS needs for science information as forest management plans are revised in the Northern Rocky Mountains.

  5. The relationship between beverage intake and weight status in children: the Cuenca study.

    PubMed

    Milla Tobarra, Marta; Martínez-Vizcaíno, Vicente; Lahoz García, Noelia; García-Prieto, Jorge Cañete; Arias-Palencia, Natalia María; Garcia-Hermoso, Antonio

    2014-10-01

    Beverage consumption is becoming more important in current research regarding its possible association with the childhood obesity epidemic. The influence of physical activity on fluid intake has been poorly studied, and cardiorespiratory fitness (CRF) may be a reliable marker for this type of assessment. The present study analysed beverage intake related to weight, adjusted by CRF, in children aged 9 to 11 years. A cross-sectional, school-based study was conducted on 373 children, aged 9 to 11 years, from the Cuenca province in Spain. To obtain beverage consumption we averaged two 24-h recalls, collected using the YANA-C assessment tool, validated for HELENA study. CRF was assessed by the 20-m shuttle run test. Fluid intake was 1483.39 mL/day, and energy ascribed to fluids was 16% of total energy intake. Beverages were 40% of total sugar intake from diet. The largest amount of fluid consumed among thinness boys came from fruit juices and milk drinks. Thinner girls consumed more diet drinks and whole milk than their normal and overweight counterparts, after adjusting for age and CRF. Overweight-obese boys consumed less fruit juices and milk drinks and girls ingested less diet drinks and whole milk than their normal-weight counterparts. These results suggest the importance of investigating the hydration habits of children to draw reliable conclusions about the best way to hydrate in different situations to avoid adiposity increases. Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.

  6. Reestablishment of Notopygos megalops McIntosh, description of N. caribea sp. n. from the Greater Caribbean and barcoding of “amphiamerican” Notopygos species (Annelida, Amphinomidae)

    PubMed Central

    Yáñez-Rivera, Beatriz; Carrera-Parra, Luis Fernando

    2012-01-01

    Abstract The species of the genus Notopygos Grube, 1855 are characterized by an ovate body, a prominent caruncle with three lobes, dendritic branchiae, and double dorsal cirri. Twenty-two species belonging to Notopygos have been described, mostly from the Indo-Pacific region. In America, few species are frequently recorded: Notopygos crinita Grube, 1855 from St. Helena Island (Atlantic) and Notopygos ornata Grube and Ørsted in Grube 1857 from Costa Rica (Pacific). Notopygos crinita is a widely distributed species in the Western Atlantic with additional reports in the Mediterranean Sea (as a questionable alien species) and in the Pacific Ocean. However, only the genus features have been considered, consequently some records could be misidentifications. During a revision of materials from collections and the barcode project, ‘Mexican Barcode of Life, MEXBOL’, we found specimens of Notopygos megalops and an undescribed species from reef zones in the Caribbean; the former had been considered a junior synonym of Notopygos crinita. Herein, Notopygos megalops is reestablished and Notopygos caribea sp. n. is described. A morphological and DNA barcode approach was used to explain the records of Notopygos ornata in the Atlantic and to show the differences with the new species, since both species share features such as complex pigmentation patterns, and circular projections in the median lobe of the caruncle. PMID:23459182

  7. Clustering of multiple lifestyle behaviors and health-related fitness in European adolescents.

    PubMed

    Cuenca-García, Magdalena; Huybrechts, Inge; Ruiz, Jonatan R; Ortega, Francisco B; Ottevaere, Charlene; González-Gross, Marcela; Moreno, Luis A; Vicente-Rodríguez, Germán; Molnár, Denés; Polito, Angela; Manios, Yannis; Plada, Maria; Vanhelst, Jeremy; Widhalm, Kurt; Sjöström, Michael; Kersting, Mathilde; Castillo, Manuel J

    2013-01-01

    To explore the clustering of different lifestyle behaviors and whether this clustering differs by gender, age, and health-related fitness. Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) cross-sectional study. Ten European cities. A total of 2,084 adolescents (12.5-17.5 years). Four lifestyle behaviors were assessed by self-administered questionnaires: moderate to vigorous physical activity, homework time, screen time, and diet. Health-related fitness components (aerobic capacity, strength, speed-agility, and body composition) were assessed. Hierarchical method and κ-means cluster analysis. Analysis of variance tests. Five clusters were identified: Healthy diet and Active, Healthy diet and Academic, Healthy diet and Inactive, Unhealthy diet and Screen user, and Unhealthy diet and Active. Younger adolescents were more active and followed a healthier diet than older adolescents. Older boys devoted more time to screen use, whereas older girls devoted more time to homework. Boys in the Healthy diet and Active cluster presented higher aerobic capacity and speed-agility, whereas girls presented higher aerobic capacity, strength, and speed-agility. Clustering of different lifestyle behaviors is observed. Different healthy lifestyles do not always come together and clusters are associated with gender, age, and health-related fitness, but not with body composition. These differences need to be considered when developing intervention strategies for the prevention of unhealthy habits. Copyright © 2013 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.

  8. Results of reconnaissance for uraniferous coal, lignite, and carbonaceous shale in western Montana

    USGS Publications Warehouse

    Hail, William J.; Gill, James R.

    1952-01-01

    A reconnaissance search for uraniferous lignite and carbonaceous shale was made in western Montana and adjacent parts of Idaho during the summer of 1951. Particular emphasis in the examination was placed on coal and carbonaceous shale associated with volcanic rocks, as volcanic rocks in many area appear to have released uranium to circulating ground water from which it was concentrated in carbonaceous material. Twenty-two area in Montana and one area of Idaho were examine. The coal in five of these area is of Cretaceous age. The coal and carbonaceous shale in the remaining 18 area occur in Tertiary "lake-bed" deposits of Oligocene and younger age. Both the Cretaceous and Tertiary coal and carbonaceous shale are associated with contemporaneous or younger volcanic rocks and pyroclastic sequences. A sample of carbonaceous shale from the Prickly Pear Valley northeast of Helena, Montana, contained 0.013 percent uranium. A sample of carbonaceous shale from the Flint Creek Valley southwest of Drummond, Montana, contained 0.006 percent uranium. All other samples of both Cretaceous and Tertiary coal and carbonaceous shale were essentially non-radioactive. No further work is planned on the Cretaceous and Tertiary coal and carbonaceous shale in western Montana. A few localities in Idaho will be visited in the course of other work.

  9. Changes in solar quiet magnetic variations since the Maunder Minimum: A comparison of historical observations and model simulations

    NASA Astrophysics Data System (ADS)

    Cnossen, Ingrid; Matzka, Jürgen

    2016-10-01

    Magnetic measurements going back to the eighteenth century offer a unique opportunity to study multicentennial changes in the upper atmosphere. We analyzed measurements from Rome and Mannheim from May 1782 to May 1783 and measurements from Greenwich, St. Helena, Cape of Good Hope, and Singapore from May 1841 to May 1842. A comparison of the daily magnetic variations in these historical data with modern-day observations from 2010 at nearby stations (where available) showed notable differences in the amplitude and/or phase of the X and Y components. Model simulations indicated that these can be explained at least to some extent by changes in the Earth's main magnetic field. Changes in the main field strength and the northwestward movement of the magnetic equator, in particular in the region of the South Atlantic Anomaly, have caused changes in the positioning, shape, and strength of the equivalent current vortices in the ionosphere that result in the magnetic perturbations on the ground. Differences in solar activity between the historical and modern epochs, which were all near solar minima, were too small to have a notable effect on the ground magnetic perturbations. However, in regions where main magnetic field changes have been relatively small for the last 400 years, e.g., in Singapore, the effects of a long-term increase in solar activity from Maunder Minimum conditions to normal solar minimum conditions (an increase in F10.7 of 35 solar flux units) were comparable to the effects of geomagnetic main field changes.

  10. Hotspot tracks and the early rifting of the Atlantic

    NASA Astrophysics Data System (ADS)

    Jason Morgan, W.

    1983-05-01

    Many hotspot tracks appear to become the locus of later rifting, as though the heat of the hotspot weakens the lithosphere and tens of millions of years later the continents are split along these weakened lines. Examples are the west coast of Greenland-east coast of Labrador (Madeira hotspot), the south coast of Mexico-north coast of Honduras (Guyana hotspot), and the south coast of West Africa-north coast of Brazil (St. Helena hotspot). A modern day analog of a possible future rift is the Snake River Plain, where the North American continent is being "pre-weakened" by the Yellowstone hotspot track. This conclusion is based on reconstructions of the motions of the continents over hotspots for the past 200 million years. The relative motions of the plates are determined from magnetic anomaly isochrons in the oceans and the motion of one plate is chosen ad hoc to best fit the motions of the plates over the hotspots. However, once the motion of this one plate is chosen, the motions of all the other plates are prescribed by the relative motion constraints. In addition to the correlation between the predicted tracks and sites of later continental breakup, exposed continental shields correlate with the tracks. Their exposure may be the result of hotspot induced uplift which has led to erosion of their former platform sediment cover.

  11. Spatial and temporal abundance patterns of oceanic chaetognaths in the western North Atlantic—I. Hydrographic and seasonal abundance patterns

    NASA Astrophysics Data System (ADS)

    Cheney, Jerry

    1985-09-01

    Chaetognath abundance was measured from 38 MOCNESS tows collected in the western North Atlantic from August 1975 to November 1977. Twenty-one species were identified from 18 slope water (SW), 18 northern Sargasso Sea (NSS) and two Gulf Stream (GS) tows. Sagitta elegans, S. hispida and S. megalophthalma were collected in only one or two tows. Eukrohnia bathypelagica, E. fowleri, E. hamata, Sagitta helenae, S. macrocephala, S. maxima and S. tasmanica are significantly more abundant in the SW than in the NSS. Krohnitta subtilis, Pterosagitta draco, Sagitta bipunctata, S. decipiens, S. hexaptera, S. lyra, S. minima, S. planctonis and S. serratodentata are significantly more abundant in the NSS. Krohnitta pacifica and Sagitta enflata show no significant abundance differences between the SW and NSS. Most species show at least an order of magnitude abundance difference between the SW and NSS, with intermediate GS abundances. A simple mixing model and previous reports of chaetognath distributions in the North Atlantic indicate that most species have expatriate populations in either the SW or NSS or in both regions. Increased temperature and food abundance probably limit SW species from the NSS, while decreased temperature and increased predator abundance probably limit NSS species from the SW. Spring abundance peaks were observed for many species in the NSS, but no seasonal peaks were detected for species in the SW. The spring abundance peaks in the NSS are probably due to increased food abundance, although temperature could not be ruled out as an important factor.

  12. Twelve new species and fifty-three new provincial distribution records of Aleocharinae rove beetles of Saskatchewan, Canada (Coleoptera, Staphylinidae)

    PubMed Central

    Klimaszewski, Jan; Larson, David J.; Labrecque, Myriam; Bourdon, Caroline

    2016-01-01

    Abstract One hundred twenty species of aleocharine beetles (Staphylinidae) are recognized in the province of Saskatchewan. Sixty-five new provincial records, including twelve new species and one new North American record, are presented. Oligota inflata (Mannerheim), a Palearctic species, is newly recorded for North America. The following twelve species are described as new to science: Acrotona pseudopygmaea Klimaszewski & Larson, sp. n., Agaricomorpha pulchra Klimaszewski & Larson, sp. n. (new genus record for Canadian fauna), Aleochara elisabethae Klimaszewski & Larson, sp. n., Atheta (Dimetrota) larsonae Klimaszewski & Larson, sp. n., Atheta (Microdota) pseudopittionii Klimaszewski & Larson, sp. n., Atheta (Microdota) spermathecorum Klimaszewski & Larson, sp. n., Atheta (sensu lato) richardsoni Klimaszewski & Larson, sp. n., Brachyusa saskatchewanae Klimaszewski & Larson, sp. n., Dochmonota langori Klimaszewski & Larson, sp. n., Dochmonota simulans Klimaszewski & Larson, sp. n., Dochmonota websteri Klimaszewski & Larson, sp. n., and Oxypoda domestica Klimaszewski & Larson, sp. n. Colour images of habitus and black and white images of the median lobe of the aedeagus, spermatheca, and tergite and sternite VIII are presented for all new species, Oligota inflata Mannerheim and Dochmonota rudiventris (Eppelsheim). A new synonymy is established: Tetralina filitarsus Casey, syn. n. = Tetralina helenae Casey, now placed in the genus Brachyusa Mulsant & Rey. PMID:27587977

  13. Conceptual design and infrastructure for the installation of the first AGATA sub-array at LNL

    NASA Astrophysics Data System (ADS)

    Gadea, A.; Farnea, E.; Valiente-Dobón, J. J.; Million, B.; Mengoni, D.; Bazzacco, D.; Recchia, F.; Dewald, A.; Pissulla, Th.; Rother, W.; de Angelis, G.; Austin, A.; Aydin, S.; Badoer, S.; Bellato, M.; Benzoni, G.; Berti, L.; Beunard, R.; Birkenbach, B.; Bissiato, E.; Blasi, N.; Boiano, C.; Bortolato, D.; Bracco, A.; Brambilla, S.; Bruyneel, B.; Calore, E.; Camera, F.; Capsoni, A.; Chavas, J.; Cocconi, P.; Coelli, S.; Colombo, A.; Conventi, D.; Costa, L.; Corradi, L.; Corsi, A.; Cortesi, A.; Crespi, F. C. L.; Dosme, N.; Eberth, J.; Fantinel, S.; Fanin, C.; Fioretto, E.; Fransen, Ch.; Giaz, A.; Gottardo, A.; Grave, X.; Grebosz, J.; Griffiths, R.; Grodner, E.; Gulmini, M.; Habermann, T.; He, C.; Hess, H.; Isocrate, R.; Jolie, J.; Jones, P.; Latina, A.; Legay, E.; Lenzi, S.; Leoni, S.; Lelli, F.; Lersch, D.; Lunardi, S.; Maron, G.; Menegazzo, R.; Michelagnoli, C.; Molini, P.; Montagnoli, G.; Montanari, D.; Möller, O.; Napoli, D. R.; Nicoletto, M.; Nicolini, R.; Ozille, M.; Pascovici, G.; Peghin, R.; Pignanelli, M.; Pucknell, V.; Pullia, A.; Ramina, L.; Rampazzo, G.; Rebeschini, M.; Reiter, P.; Riboldi, S.; Rigato, M.; Rossi Alvarez, C.; Rosso, D.; Salvato, G.; Strachan, J.; Sahin, E.; Scarlassara, F.; Simpson, J.; Stefanini, A. M.; Stezowski, O.; Tomasi, F.; Toniolo, N.; Triossi, A.; Turcato, M.; Ur, C. A.; Vandone, V.; Venturelli, R.; Veronese, F.; Veyssiere, C.; Viscione, E.; Wieland, O.; Wiens, A.; Zocca, F.; Zucchiatti, A.; AGATA Collaboration; PRISMA Collaboration

    2011-10-01

    The first implementation of the AGATA spectrometer consisting of five triple germanium detector clusters has been installed at Laboratori Nazionali di Legnaro, INFN. This setup has two major goals, the first one is to validate the γ-tracking concept and the second is to perform an experimental physics program using the stable beams delivered by the Tandem-PIAVE-ALPI accelerator complex. A large variety of physics topics will be addressed during this campaign, aiming to investigate both neutron and proton-rich nuclei. The setup has been designed to be coupled with the large-acceptance magnetic-spectrometer PRISMA. Therefore, the in-beam prompt γ rays detected with AGATA will be measured in coincidence with the products of multinucleon-transfer and deep-inelastic reactions measured by PRISMA. Moreover, the setup is versatile enough to host ancillary detectors, including the heavy-ion detector DANTE, the γ-ray detector array HELENA, the Cologne plunger for lifetime measurements and the Si-pad telescope TRACE. In this paper the design, characteristics and performance figures of the setup will be described.

  14. Patient can't get ADA relief unless discrimination persists.

    PubMed

    1997-09-05

    Several United States courts have ruled that under Title III of the Americans with Disabilities Act (ADA), HIV-positive patients have no recourse against a physician who has discriminated against them, provided that the patients do not plan to visit the doctor in the future. If the patient states that he or she does not intend to use the physician's or facility's services again, there is no basis for injunctive relief under the ADA. This issue is illustrated by the case of [name removed], an HIV-positive patient residing in Atlanta, GA, who attempted to sue [name removed], a plastic surgeon who refused to perform a cosmetic implant procedure. [Name removed] claimed that the procedure was a direct threat to [name removed]'s health and refused to treat him. When [name removed] vowed that he would never again seek medical care from [name removed] he lost his opportunity to file suit against [name removed] under the ADA. Additionally, [name removed] did not prove that the cosmetic procedure would not pose a direct threat to his own health in the form of a postoperative infection. This position has been accepted by a number of courts, including [name removed] v. St. Helena Hospital (CA).

  15. Prevalence of sedentary behavior and its correlates among primary and secondary school students

    PubMed Central

    Ferreira, Rodrigo Wiltgen; Rombaldi, Airton José; Ricardo, Luiza Isnardi Cardoso; Hallal, Pedro Curi; Azevedo, Mario Renato

    2016-01-01

    Abstract Objective: To determine the students’ exposure to four different sedentary behavior (SB) indicators and their associations with gender, grade, age, economic status and physical activity level. Methods: A cross-sectional study was conducted in 2013. The SB was collected using the HELENA instrument, composed by screen time questions (TV, video games and internet) and sitting activities on school opposite shift. The cut point of ≥2h/day was used to categorize the outcome. The Poisson regression was used for associations between the outcome and the independent variables (95% significance level), controlling for confounding variables and the possible design effect. Results: The sample was composed by 8661 students. The overall prevalence of SB was 69.2% (CI95% 68.1–70.2) on weekdays, and 79.6% (CI95% 78.7–80.5) on weekends. Females were more associated with the outcome, except to electronic games. Advanced grades students were more involved in sitting tasks when compared to the early grades. Older students were more likely to surf on net for ≥2h/day. Higher economic level students were more likely to engage in video games and internet. Active individuals were less likely to engage in SB on weekdays. Conclusions: The prevalence of SB was high, mainly on weekends. The associations with sex, age, grade and physical activity level should be considered into elaboration of more efficient interventions on SB control. PMID:26826878

  16. Strategies for Obtaining Obsidian in Pre-European Contact Era New Zealand

    PubMed Central

    McCoy, Mark D.; Carpenter, Jonathan

    2014-01-01

    Archaeological evidence of people's choices regarding how they supply themselves with obsidian through direct access and different types of exchanges gives us insight in to mobility, social networks, and property rights in the distant past. Here we use collections of obsidian artefacts that date to a period of endemic warfare among Maori during New Zealand's Late Period (1500–1769 A.D.) to determine what strategies people engaged in to obtain obsidian, namely (1) collecting raw material directly from a natural source, (2) informal trade and exchange, and (3) formal trade and exchange. These deposits represent a good cross-section of Late Period archaeology, including primary working of raw material at a natural source (Helena Bay), undefended sites where people discarded rubbish and worked obsidian (Bream Head), and a heavily fortified site (Mt. Wellington). We find that most of the obsidian described here was likely obtained directly from natural sources, especially those located on off-shore islands within about 60–70 km of sites. A smaller amount comes from blocks of material transported from an off-shore island a greater distance away, called Mayor Island, in a formal trade and exchange network. This study demonstrates the value of conducting tandem lithic technology and geochemical sourcing studies to understand how people create and maintain social networks during periods of warfare. PMID:24416213

  17. Rough versus smooth topography along oceanic hotspot tracks: Observations and scaling analysis

    NASA Astrophysics Data System (ADS)

    Orellana-Rovirosa, Felipe; Richards, Mark

    2017-05-01

    Some hotspot tracks are topographically smooth and broad (Nazca, Carnegie/Cocos/Galápagos, Walvis, Iceland), while others are rough and discontinuous (Easter/Sala y Gomez, Tristan-Gough, Louisville, St. Helena, Hawaiian-Emperor). Smooth topography occurs when the lithospheric age at emplacement is young, favoring intrusive magmatism, whereas rough topography is due to isolated volcanic edifices constructed on older/thicker lithosphere. The main controls on the balance of intrusive versus extrusive magmatism are expected to be the hotspot swell volume flux Qs, plate hotspot relative speed v, and lithospheric elastic thickness Te, which can be combined as a dimensionless parameter R = (Qs/v)1/2/Te, which represents the ratio of plume heat to the lithospheric heat capacity. Observational constraints show that, except for the Ninetyeast Ridge, R is a good predictor of topographic character: for R < 1.5 hotspot tracks are topographically rough and dominated by volcanic edifices, whereas for R > 3 they are smooth and dominated by intrusion.

  18. The n-3 long-chain PUFAs modulate the impact of the GCKR Pro446Leu polymorphism on triglycerides in adolescents[S

    PubMed Central

    Rousseaux, Julien; Duhamel, Alain; Dumont, Julie; Dallongeville, Jean; Molnar, Denes; Widhalm, Kurt; Manios, Yannis; Sjöström, Michael; Kafatos, Anthony; Breidenassel, Christina; Gonzales-Gross, Marcela; Cuenca-Garcia, Magdalena; Censi, Laura; Ascensión, Marcos; De Henauw, Stefaan; Moreno, Luis A.; Meirhaeghe, Aline; Gottrand, Frédéric

    2015-01-01

    Dietary n-3 long-chain PUFAs (LC-PUFAs) are associated with improvement in the parameters of the metabolic syndrome (MetS). Glucokinase regulatory protein (GCKR) is a key protein regulating intracellular glucose disposal. Our aim was to investigate: i) the relationship between the GCKR rs1260326 (Pro446Leu) polymorphism and parameters of the MetS; and ii) a potential influence of n-3 and n-6 LC-PUFA levels on this relationship in the HELENA study (1,155 European adolescents). Linear regression analyses were performed to study the association between rs1260326 and the outcomes of interest. Interactions between rs1260326 and LC-PUFA levels on outcomes were explored. The T allele of rs1260326 was associated with higher serum TG concentrations compared with the C allele. In contrast to n-6 LC-PUFA levels, a significant interaction (P = 0.01) between rs1260326 and total n-3 LC-PUFA levels on serum TG concentrations was observed. After stratification on the n-3 LC-PUFA median values, the association between rs1260326 and TG concentration was significant only in the group with high n-3 LC-PUFA levels. In conclusion, this is the first evidence that n-3 LC-PUFAs may modulate the impact of the GCKR rs1260326 polymorphism on TG concentrations in adolescents. Several molecular mechanisms, in link with glucose uptake, could explain these findings. PMID:26136510

  19. Recent developments in the global geomagnetic observatory network

    NASA Astrophysics Data System (ADS)

    Chulliat, A.

    2011-12-01

    Magnetic observatories provide precise and continuous measurements of geomagnetic variations over time scales ranging from one second to more than a century. They have been an essential observational infrastructure for geomagnetic research for about 170 years. A large fraction of magnetic observatories belong to INTERMAGNET (International Real-time Magnetic Observatory Network), a global network founded in the late 1980s which now includes about 115 observatories in 45 countries. INTERMAGNET magnetic observatories comply with strict data quality and timeliness standards and distribute their data through an integrated data information system. Recent years have seen a rapid expansion of the global network: new observatories have been installed in remote locations, such as oceanic islands (St Helena, Easter Island, Tristan da Cunha) or Antarctica (Dome C); ancient observatories have been upgraded to international standards (for example in China and Siberia). This has been prompted by the need to have a more geographically homogeneous network. In parallel, new data products (one second data and quasi-definitive data) are being made available, addressing a wide variety of research needs, and real timeliness is being improved for operational purposes such as space weather monitoring and forecasting. This presentation will provide an overview of these recent developments, focusing on those most relevant to the geomagnetic modeling community, and discuss their expected scientific benefits.

  20. Quality-assurance plan for water-resources activities of the U.S. Geological Survey in Montana--1995

    USGS Publications Warehouse

    Moreland, Joe A.

    1995-01-01

    As the Nation's principal earth-science information agency, the U.S. Geological Survey has developed a worldwide reputation for collecting accurate data and producing factual, impartial interpretive reports. To ensure continued confidence in the pro- ducts, the Water Resources Division of the U.S. Geological Survey has implemented a policy that all scientific work will be performed in accordance with a centrally managed quality-assurance program. The formal policy for quality assurance within the Montana District was established and documented in USGS Open-File Report 91-194. This report has been revised to reflect changes in personnel and organi- zational structure that have occurred since 1991. Quality assurance is formalized by describing organization and operational responsibilities, the quality-assurance policy, and the quality- assurance responsibilities for performing District functions. The District conducts its work through offices in Helena, Billings, Kalispell, and Fort Peck. Data-collection programs and interpretive studies are conducted by three operating sections and four support units. Discipline specialists provide technical advice and assistance. Management advisors provide guidance on various personnel issues and support functions.

  1. Quality-assurance plan for water-resources activities of the U. S. Geological Survey in Montana--1991

    USGS Publications Warehouse

    Moreland, Joe A.

    1991-01-01

    As the Nation's principal earth-science information agency, the U.S. Geological Survey has developed a worldwide reputation for collecting accurate data and producing factual, impartial interpretive reports. To ensure continued confidence in the pro- ducts, the Water Resources Division of the U.S. Geological Survey has implemented a policy that all scientific work will be performed in accordance with a centrally managed quality-assurance program. The formal policy for quality assurance within the Montana District was established and documented in USGS Open-File Report 91-194. This report has been revised to reflect changes in personnel and organi- zational structure that have occurred since 1991. Quality assurance is formalized by describing organization and operational responsibilities, the quality-assurance policy, and the quality- assurance responsibilities for performing District functions. The District conducts its work through offices in Helena, Billings, Kalispell, and Fort Peck. Data-collection programs and interpretive studies are conducted by three operating sections and four support units. Discipline specialists provide technical advice and assistance. Management advisors provide guidance on various personnel issues and support functions.

  2. Strategies for obtaining obsidian in pre-European contact era New Zealand.

    PubMed

    McCoy, Mark D; Carpenter, Jonathan

    2014-01-01

    Archaeological evidence of people's choices regarding how they supply themselves with obsidian through direct access and different types of exchanges gives us insight in to mobility, social networks, and property rights in the distant past. Here we use collections of obsidian artefacts that date to a period of endemic warfare among Maori during New Zealand's Late Period (1500-1769 A.D.) to determine what strategies people engaged in to obtain obsidian, namely (1) collecting raw material directly from a natural source, (2) informal trade and exchange, and (3) formal trade and exchange. These deposits represent a good cross-section of Late Period archaeology, including primary working of raw material at a natural source (Helena Bay), undefended sites where people discarded rubbish and worked obsidian (Bream Head), and a heavily fortified site (Mt. Wellington). We find that most of the obsidian described here was likely obtained directly from natural sources, especially those located on off-shore islands within about 60-70 km of sites. A smaller amount comes from blocks of material transported from an off-shore island a greater distance away, called Mayor Island, in a formal trade and exchange network. This study demonstrates the value of conducting tandem lithic technology and geochemical sourcing studies to understand how people create and maintain social networks during periods of warfare.

  3. Compilation of Water-Resources Data for Montana, Water Year 2006

    USGS Publications Warehouse

    Ladd, P. B.; Berkas, W.R.; White, M.K.; Dodge, K.A.; Bailey, F.A.

    2007-01-01

    The U.S. Geological Survey, Montana Water Science Center, in cooperation with other Federal, State, and local agencies, and Tribal governments, collects a large amount of data pertaining to the water resources of Montana each water year. This report is a compilation of Montana site-data sheets for the 2006 water year, which consists of records of stage and discharge of streams; water quality of streams and ground water; stage and contents of lakes and reservoirs; water levels in wells; and precipitation data. Site-data sheets for selected stations in Canada and Wyoming also are included in this report. The data for Montana, along with data from various parts of the Nation, are included in 'Water-Resources Data for the United States, Water Year 2006', which is published as U.S. Geological Survey Water-Data Report WDR-US-2006 and is available at http://pubs.water.usgs.gov/wdr2006. Additional water year 2006 data collected at crest-stage gage and miscellaneous-measurement stations were collected but were not published. These data are stored in files of the U.S. Geological Survey Montana Water Science Center in Helena, Montana, and are available on request.

  4. STRIKE SLIP ON REACTIVATED TRIASSIC(? ) BASIN BOUNDARY FAULT ZONES AS SOURCES OF EARTHQUAKES NEAR CHARLESTON, S. C.

    USGS Publications Warehouse

    Behrendt, John C.; Yuan, Annette

    1986-01-01

    Interpretation of several thousand kilometers of multifold seismic reflection data supports the old theory that earthquakes in the Charleston, S. C. area are associated with reactivated Triassic(? ) basin boundary extensional fault zones. The Gants-Cooke fault zone associated with the Jedburg basin in the 1886 meizoseismal area, an unnamed fault along the margin of the Branchville basin in the Bowman earthquake area and the offshore Helena Banks fault zone (no observed seismicity) along the margin of the Kiawah basin show evidence of reactivation of Triassic(? ) normal faults zones in a compressional, probably strike slip sense. The previously reported reverse separation of these faults observed on the seismic profiles in the late Cretaceous-Cenozoic Coastal Plain sediments is possibly produced by oblique slip with the horizontal component possibly 10 to 100 times the vertical. Earthquake recurrence intervals of several thousand years reported in the Charleston area appear consistent with ranges of magnitude of strike slip displacement inferred from the seismic reflection data, and are constrained by aeromagnetic data.

  5. Free-living nematode species (Nematoda) dwelling in hydrothermal sites of the North Mid-Atlantic Ridge

    NASA Astrophysics Data System (ADS)

    Tchesunov, Alexei V.

    2015-12-01

    Morphological descriptions of seven free-living nematode species from hydrothermal sites of the Mid-Atlantic Ridge are presented. Four of them are new for science: Paracanthonchus olgae sp. n. (Chromadorida, Cyatholaimidae), Prochromadora helenae sp. n. (Chromadorida, Chromadoridae), Prochaetosoma ventriverruca sp. n. (Desmodorida, Draconematidae) and Leptolaimus hydrothermalis sp. n. (Plectida, Leptolaimidae). Two species have been previously recorded in hydrothermal habitats, and one species is recorded for the first time in such an environment. Oncholaimus scanicus (Enoplida, Oncholaimidae) was formerly known from only the type locality in non-hydrothermal shallow milieu of the Norway Sea. O. scanicus is a very abundant species in Menez Gwen, Lucky Strike and Lost City hydrothermal sites, and population of the last locality differs from other two in some morphometric characteristics. Desmodora marci (Desmodorida, Desmodoridae) was previously known from other remote deep-sea hydrothermal localities in south-western and north-eastern Pacific. Halomonhystera vandoverae (Monhysterida, Monhysteridae) was described and repeatedly found in mass in Snake Pit hydrothermal site. The whole hydrothermal nematode assemblages are featured by low diversity in comparison with either shelf or deep-sea non-hydrothermal communities. The nematode species list of the Atlantic hydrothermal vents consists of representatives of common shallow-water genera; the new species are also related to some shelf species. On the average, the hydrothermal species differ from those of slope and abyssal plains of comparable depths by larger sizes, diversity of buccal structures, presence of food content in the gut and ripe eggs in uteri.

  6. Twelve new species and fifty-three new provincial distribution records of Aleocharinae rove beetles of Saskatchewan, Canada (Coleoptera, Staphylinidae).

    PubMed

    Klimaszewski, Jan; Larson, David J; Labrecque, Myriam; Bourdon, Caroline

    2016-01-01

    One hundred twenty species of aleocharine beetles (Staphylinidae) are recognized in the province of Saskatchewan. Sixty-five new provincial records, including twelve new species and one new North American record, are presented. Oligota inflata (Mannerheim), a Palearctic species, is newly recorded for North America. The following twelve species are described as new to science: Acrotona pseudopygmaea Klimaszewski & Larson, sp. n., Agaricomorpha pulchra Klimaszewski & Larson, sp. n. (new genus record for Canadian fauna), Aleochara elisabethae Klimaszewski & Larson, sp. n., Atheta (Dimetrota) larsonae Klimaszewski & Larson, sp. n., Atheta (Microdota) pseudopittionii Klimaszewski & Larson, sp. n., Atheta (Microdota) spermathecorum Klimaszewski & Larson, sp. n., Atheta (sensu lato) richardsoni Klimaszewski & Larson, sp. n., Brachyusa saskatchewanae Klimaszewski & Larson, sp. n., Dochmonota langori Klimaszewski & Larson, sp. n., Dochmonota simulans Klimaszewski & Larson, sp. n., Dochmonota websteri Klimaszewski & Larson, sp. n., and Oxypoda domestica Klimaszewski & Larson, sp. n. Colour images of habitus and black and white images of the median lobe of the aedeagus, spermatheca, and tergite and sternite VIII are presented for all new species, Oligota inflata Mannerheim and Dochmonota rudiventris (Eppelsheim). A new synonymy is established: Tetralina filitarsus Casey, syn. n. = Tetralina helenae Casey, now placed in the genus Brachyusa Mulsant & Rey.

  7. Mantle: More HIMU in the future?

    NASA Astrophysics Data System (ADS)

    Vidal, Ph.

    1992-12-01

    High μ (HIMU) islands such as St. Helena in the southern Atlantic Ocean, and Tubuaii and Mangaia in the Australes (Polynesia), are known for having mantle sources relatively enriched in some high field-strength elements (HFSE) such as Nb, and, as deduced from their extremely enriched lead isotopic compositions, long-lived high U/Pb (μ) ratios. A second group of HIMU mantle reservoirs is well identified in the Pacific Ocean, at Ua Pou (Marquesas), Mururoa and Fangataufa (Gambiers), Guadalupe; and in the Atlantic Ocean, in the New England seamounts, Azores, Cape Verde, and Canarias. In contrast to Group I, these exhibit a much less pronounced enrichment in radiogenic lead due to only a recent increase in the μ ratio, whereas HFSE enrichment and lead depletion (as visible from high Ce/Pb ratios) are more pronounced than in Group I. If the HIMU reservoir is related to recycling of subducted lithosphere impoverished by dehydration in some elements enriched in arc magmas, the evolution of the thermal régime in subduction zones makes the HIMU reservoir progressively more abundant with time. During the early to middle Precambrian, a large part of the subducted lithosphere was melted; hence the residue recycled in the mantle was not sufficiently fertile to allow further basaltic melt extraction. In contrast, in modern, cooler subduction zones, dehydration and the subsequent extraction by fluids of mobile elements leaves behind a fertile residue.

  8. Water-level surface in the Chicot equivalent aquifer system in southeastern Louisiana, 2009

    USGS Publications Warehouse

    Tomaszewski, Dan J.

    2011-01-01

    The Chicot equivalent aquifer system is an important source of freshwater in southeastern Louisiana. In 2005, about 47 million gallons per day (Mgal/d) were withdrawn from the Chicot equivalent aquifer system in East Baton Rouge, East Feliciana, Livingston, Tangipahoa, St. Helena, St. Tammany, Washington, and West Feliciana Parishes. Concentrated withdrawals exceeded 5 Mgal/d in Bogalusa, the city of Baton Rouge, and in northwestern East Baton Rouge Parish. In the study area, about 30,000 wells screened in the Chicot equivalent aquifer system were registered with the Louisiana Department of Transportation and Development (LaDOTD). These wells were constructed for public-supply, industry, irrigation, and domestic uses. Most of the wells were registered as domestic-use wells and are small-diameter, low-yielding wells. Total withdrawal from the Chicot equivalent aquifer system for domestic use was estimated to be 12 Mgal/d in 2005. This report documents the 2009 water-level surface of the Chicot equivalent aquifer system in southeastern Louisiana. The report also shows differences in water-level measurements for the years 1991 and 2009 at selected sites. Understanding changes and trends in water levels is important for continued use, planning, and management of groundwater resources. The U.S. Geological Survey, in cooperation with the Louisiana Department of Transportation and Development, conducted this study of the water-level surface of the Chicot equivalent aquifer system as part of an ongoing effort to monitor groundwater levels in aquifers in Louisiana.

  9. Cool cuisine-feed your body, mind, and planet.

    PubMed

    Stec, Laura

    2012-03-01

    This paper combines information from the book, Cool Cuisine-Taking the Bite Out of Global Warming (Gibbs Smith, 2008) with notes from the World of Healthy Flavors Conference (Culinary Institute of America, St. Helena, CA, USA, 2011). Cool Cuisine reports on connections between food choices and global warming, (what we termed the Global Warming Diet), both from a culinary and science point of view. World of Healthy Flavors brought food industry professionals together to discuss ways the industry can collaborate on solutions to some of the most pressing health problems in the USA. Science now supports the fact that dietary choices that adversely effect human health have an equally detrimental effect on the health of the environment and our livestock. Therefore, eating a more diverse, plant-based, whole grain, and sodium-reduced diet not only improves human health, but also the health of the environment. What is good for humans to eat is the same food that is best for the environment to grow and manufacture. Understanding and then teaching the connection between the two is one more tool toward effective behavior change, especially in children. Easy suggestions on ways to cook healthfully and "fight the global warming diet with a cool cuisine" close out this work.

  10. The Shodair Medical Genetics Department--recent past and future developments.

    PubMed

    Elias, Abdallah F

    2014-12-01

    Philip Pallister and John Opitz laid the ground work for a unique genetic service model in Montana that continues to flourish through ongoing support by the Montana Legislature, the Montana Department of Public Health and Human Services and the Shodair Foundation. At the heart of the model are clinical and laboratory genetic specialists based at Shodair Children's Hospital in Helena providing genetic care for patients through outreach clinics. Clinical services are supported by a state-of-the-art cytogenetics and molecular genetic laboratory as well a fetal genetic pathology program. Over the years, the reach of regular genetics clinics expanded to include large geographic areas including northwest (Kalispell), west central (Missoula), southwest (Bozeman, Butte), north central (Great Falls), and south central Montana (Billings). Building on the foundation of its world-renowned pioneers, the next generation of medical geneticists at Shodair carries the responsibility of integrating genomic medicine in the diagnosis and care of their patients, reducing inequality of services within Montana and partnering with colleagues across specialties to develop a more personalized practice of medicine. © 2014 Wiley Periodicals, Inc.

  11. 15 Years of Oceanography in the Azores: From Oceanographic Cruises to an Integrated Approach

    NASA Astrophysics Data System (ADS)

    Juliano, M. F.; Alves, M.; Simões, A.; Rodeia, J.

    2006-07-01

    Oceanographic research in the Azores has only started 15 years ago. Nevertheless, it has been possible to evolve from the typical "research cruise approach" to a more versatile and integrated approach, that has proofed to be further rewarding and adequate for the size and resources of the group. The Azorean Oceanographers have participated and conducted several research cruises since 1990, and anticipating the importance of correlating in situ data with satellite data has lead us to plan the last of these, so that there was a coincidence of transects, moorings and satellite ground tracks. On the other hand, the group has invested in data processing and merging hydrological historical data with the results from the above mentioned oceanographic cruises, creating a hydrological database for the whole Atlantic Ocean. Also, through the application of a novel methodology and approach, the group has contributed to a new vision of the currents systems in the South Atlantic Ocean, namely with the newly found St. Helena Current, the congener of the Azores Current. As a result of this continued shift in methodology, the group is now using an integrated approach where field data, model output and processed altimeter data are merged to produce operational oceanography products, such as sea state charts and daily oceanic current charts.

  12. Taxonomic Synopsis of the Ponto-Mediterranean Ants of Temnothorax nylanderi Species-Group

    PubMed Central

    Csősz, Sándor; Heinze, Jürgen; Mikó, István

    2015-01-01

    In the current revisionary work, the Temnothorax nylanderi species-group of myrmicine ants is characterized. Eighteen species belonging to this group in the Ponto-Mediterranean region are described or redefined based on an integrative approach that combines exploratory analyses of morphometric data and of a 658bp fragment of the mitochondrial gene for the cytochrome c oxidase subunit I (CO I). The species group is subdivided into five species complexes: T. angustifrons complex, T. lichtensteini complex, T. nylanderi complex, T. parvulus complex, T. sordidulus complex, and two species, T. angulinodis sp. n. and T. flavicornis (Emery, 1870) form their own lineages. We describe seven new species (T. angulinodis sp. n., T. angustifrons sp. n., T. ariadnae sp. n., T. helenae sp. n., T. lucidus sp. n., T. similis sp. n., T. subtilis sp. n.), raise T. tergestinus (FINZI, 1928) stat.n. to species level, and propose a new junior synonymy for T. saxonicus (SEIFERT, 1995) syn.n. (junior synonym of T. tergestinus). We describe the worker caste and provide high quality images and distributional maps for all eighteen species. Furthermore, we provide a decision tree as an alternative identification key that visually gives an overview of this species-group. We make the first application to Formicidae of the Semantic Phenotype approach that has been used in previous taxonomic revisions. PMID:26536033

  13. Editorial: Process to progress? Investigative trials, mechanism and clinical science.

    PubMed

    Green, Jonathan

    2015-01-01

    In 2002 Helena Kraemer and colleagues published an important article on the analysis of clinical trials in mental health, which advocated a planned focus on mechanisms to investigate the processes behind treatment effects. Kraemer et al. considered not only new approaches to mediation analysis, but also a theoretical approach to factors, both pre-treatment and during treatment, that might moderate this mediation. Trials should not just be about whether a treatment 'worked', but how it worked; with the results informing modification of the intervention for the next trial by discarding aspects that were not effective and reinforcing aspects that were - an iterative procedure towards greater effectiveness. Can we enjoy similar ambitions for complex interventions within mental health? It is not so long ago when the received wisdom within the clinical and much of the research community was that it was simply impossible in practice to mount randomised controlled trials relevant to the kind of psychosocial interventions we use in child and adolescent mental health (CAMHS). How different the situation is now, with burgeoning interest in a systematic evidence base for psychological treatment and the possibilities for unexpected advances (as well as unexpected harms). Nevertheless it is probably still fair to say that the systematic use of process and mechanism study within trials in our field is the exception rather than the rule. What are the possibilities and implications for our field?

  14. The nutritional status in adolescent Spanish cyclists.

    PubMed

    Julián-Almárcegui, C; Gómez-Cabello, A; González-Agüero, A; Olmedillas, H; Gómez-Bruton, A; Matute-Llorente, A; Casajús, J A; Vicente-Rodríguez, G

    2013-01-01

    Introducción: La adolescencia es un periodo importante de vulnerabilidad nutricional dados las mayores demandas alimentarias. Objetivo: Describir el estado nutritivo de ciclistas adolescentes y de un grupo de controles con actividad normal. Métodos: Se utilizó la Herramienta de Evaluación Alimentaria HELENA para evaluar la ingesta nutricional de 20 ciclistas adolescentes y 17 controles. Se registraron la ingesta total de energía, el gasto de energía en reposo (GER), el gasto de energía total (GET), los macronutrientes y diversos micronutrientes y se compararon con las guías dietéticas. Resultados: El GER fue menor y el GTE mayor en los ciclistas que en los controles (ambos P < 0,01). Se observaron diferencias significativas en el fósforo y la vitamina B1, siendo mayores en los ciclistas (P < 0,05). La mayor parte de los participantes, tanto ciclistas como controles, no alcanzó los requerimientos en macronutrientes, vitaminas ni minerales. Conclusión: El estado nutritivo de los adolescentes ciclistas y de los controles parece no adecuarse a las recomendaciones de cantidad y calidad. Deberían investigarse las posibles implicaciones de la salud actual y futura, especialmente en los adolescentes atletas.

  15. Family socioeconomic factors are negatively associated with blood pressure in European boys, but not girls, and Brazilian adolescents: Results from two observational studies.

    PubMed

    de Moraes, Augusto César Ferreira; Carvalho, Heráclito Barbosa; Gomez-Martinez, Sonia; Androutsos, Odysseas; Jiménez-Pavón, David; Sjöström, Michael; Kafatos, Anthony; Widhalm, Kurt; Cañada, David; Martin-Matillas, Miguel; Beghin, Laurent; Gottrand, Frederic; Moreno, Luis A

    2015-01-01

    We aimed to estimate the attributable fraction of systolic (SBP) and diastolic blood pressure (DBP) that can be explained by family socioeconomic factors (FSFs) in adolescents using two observational studies. Participants were recruited by multistage random cluster in two cross-sectional studies performed in Europe [Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study, n = 3308] and Brazil [Brazilian Cardiovascular Adolescent Health (BRACAH) study, n = 991]. SBP and DBP were measured, and FSFs (socioeconomic status and parental education) were self-reported in both studies. The correlations of SBP and DBP with FSFs were examined by multilevel linear regression through two different models (hierarchical and fully adjusted). The generalized attributable fractions of the FSFs were estimated by comparing the models. Our results showed a significant inverse relationship between parental education (father and mother) and SBP in European boys. The higher generalized attributable fraction to SBP was observed in boys (13.2-22.4%). In girls, we found lower generalized attributable fractions to DBP (10.8-12.1% in Brazilian girls and 3.1-3.8% in European girls). Our findings revealed a significant inverse relationship between parental education and SBP in European boys. FSF also significantly influenced blood pressure in adolescents, mainly in Brazilian adolescents.

  16. Survey views of the Mir space station taken during rendezvous

    NASA Image and Video Library

    1997-01-16

    STS081-709-061 (12-22 Jan. 1997) --- As recorded while Space Shuttle Atlantis was docked with Russia's Mir Space Station, this 70mm camera's frame shows South Africa's wine growing country (immediately right of the solar panel) in a southwest-looking perspective. Most of the population in the Western Cape Province, as it is known, is clustered in the wet extreme south of the country identified here with denser cloud masses. This is the Mediterranean region of the country, experiencing summer drought when the photograph was taken. Cape Town lies immediately right of the solar panel and the Swartland wheat country to the left. The darker green areas are more heavily vegetated regions on the continental escarpment. The large bay in the region is the remote St. Helena Bay (Africa's southernmost point, Cape Agulhas, lies behind the solar panel). The cloud-free parts of the country in the foreground is the sparsely populated semidesert known as the Karroo, a quiet region to which people retire both for its rare dry climate and its beauty.

  17. Constructing inverse V-type TiO2-based photocatalyst via bio-template approach to enhance the photosynthetic water oxidation

    NASA Astrophysics Data System (ADS)

    Jiang, Jinghui; Zhou, Han; Ding, Jian; Zhang, Fan; Fan, Tongxiang; Zhang, Di

    2015-08-01

    Bio-template approach was employed to construct inverse V-type TiO2-based photocatalyst with well distributed AgBr in TiO2 matrix by making dead Troides Helena wings with inverse V-type scales as the template. A cross-linked titanium precursor with homogenous hydrolytic rate, good liquidity, and low viscosity was employed to facilitate a perfect duplication of the template and the dispersion of AgBr based on appropriate pretreatment of the template by alkali and acid. The as-synthesized inverse V-type TiO2/AgBr can be turned into inverse V-type TiO2/Ag0 from AgBr photolysis during photocatalysis to achieve in situ deposition of Ag0 in TiO2 matrix, by this approach, to avoid the deformation of surface microstructure inherited from the template. The result showed that the cooperation of perfect inverse V-type structure and the well distributed TiO2/Ag0 microstructures can efficiently boost the photosynthetic water oxidation compared to non-inverse V-type TiO2/Ag0 and TiO2/Ag0 without using template. The anti-reflection function of inverse V-type structure and the plasmatic effect of Ag0 might be able to account for the enhanced photon capture and efficient photoelectric conversion.

  18. Activation analyses of authenticated hairs of Napoleon Bonaparte confirm arsenic poisoning.

    PubMed

    Weider, B; Fournier, J H

    1999-12-01

    In 1960, activation analyses at the Harwell Nuclear Research Laboratory of the University of Glascow, London of authenticated hairs of Napoleon Bonaparte taken immediately after his death confirmed Napoleon's chronic arsenic poisoning on the island of St. Helena. Timeline correlation of his clinical symptomatology of the preceding 4 months, as reported in the written diaries of his exiled companions, further supports the effect of fluctuating, elevated toxic levels of arsenic on his health. Independent analyses of authenticated hairs of Napoleon by the Toxicology Crime Laboratory of the United States Federal Bureau of Investigation in 1995 reveals toxic levels of arsenic. The successful assassination of Napoleon included both a cosmetic and lethal phase. The cosmetic phase consisted of arsenic poisoning over time to weaken Napoleon, making the associated debility appear to be a natural illness and thus allay any suspicions prior to instituting the lethal phase. On May 3, 1821, at 5:30 P.M., the lethal phase was carried out. Napoleon was given Calomel (HgCl), a cathartic, and a popular orange-flavored drink called orgeat, which was flavored with the oil of bitter almonds. Together they formed mercury cyanide, which is lethal. Napoleon lost consciousness and died two days later.

  19. Channelling the Emperor: what really killed Napoleon?

    PubMed

    Mari, Francesco; Bertol, Elisabetta; Fineschi, Vittorio; Karch, Steven B

    2004-08-01

    Arsenic was present in Napoleon's hair before he arrived on Saint Helena and the findings at necropsy are consistent only with the diagnosis of ulcerating, regionally invasive, gastric carcinoma. The question of whether Napoleon died of, or merely with, arsenic poisoning is illuminated by developments in the treatment of promyelocytic leukaemia. Arsenic trioxide induces remission in many, but treatment can be complicated by QT prolongation, torsades de pointes and sudden death. At clinically relevant concentrations, arsenic blocks both I(Kr) and I(ks) channels and, at the same time, activates I(K-ATP) channels. The balance of these forces is easily disrupted, and QT prolongation is worsened by hypokalaemia. Napoleon was chronically treated with tartar emetic for gastrointestinal symptoms, and the day before he died he was given a huge dose of calomel (mercurous chloride) as a purgative. Both treatments would have caused potassium wastage. In addition, the Emperor was being treated with a decoction containing 'bark'-presumably 'Jesuit's bark'. The quinine in Jesuit's bark is another cause of QT prolongation. It is likely that the immediate cause of the Emperor's death was torsades de pointes, brought on by chronic exposure to arsenic and a medication error.

  20. The medical mystery of Napoleon Bonaparte: an interdisciplinary exposé.

    PubMed

    Lugli, Alessandro; Clemenza, Massimiliano; Corso, Philip E; di Costanzo, Jacques; Dirnhofer, Richard; Fiorini, Ettore; Herborg, Costanza; Hindmarsh, John Thomas; Orvini, Edoardo; Piazzoli, Adalberto; Previtali, Ezio; Santagostino, Angela; Sonnenberg, Amnon; Genta, Robert M

    2011-03-01

    Napoleon Bonaparte (1769 to 1821) is one of the most studied historical figures in European history. Not surprisingly, amongst the many mysteries still surrounding his person is the cause of his death, and particularly the suspicion that he was poisoned, continue to intrigue medical historians. After the defeat of the Napoleonic Army at the battle of Waterloo in 1815, Napoleon was exiled to the small island of Saint Helena in the South Atlantic, where he died 6 years later. Although his personal physician, Dr François Carlo Antommarchi, stated in his autopsy report that stomach cancer was the cause of death, this diagnosis was challenged in 1961 by the finding of an elevated arsenic concentration in one of Napoleon's hair samples. At that time it was suggested that Napoleon had been poisoned by one of his companions in exile who was allegedly supported by the British Government. Since then Napoleon's cause of death continues to be a topic of debate. The aim of this review is to use a multidisciplinary approach to provide a systematic and critical assessment of Napoleon's cause of death.

  1. Channelling the Emperor: what really killed Napoleon?

    PubMed Central

    Mari, Francesco; Bertol, Elisabetta; Fineschi, Vittorio; Karch, Steven B

    2004-01-01

    Arsenic was present in Napoleon's hair before he arrived on Saint Helena and the findings at necropsy are consistent only with the diagnosis of ulcerating, regionally invasive, gastric carcinoma. The question of whether Napoleon died of, or merely with, arsenic poisoning is illuminated by developments in the treatment of promyelocytic leukaemia. Arsenic trioxide induces remission in many, but treatment can be complicated by QT prolongation, torsades de pointes and sudden death. At clinically relevant concentrations, arsenic blocks both IKr and Iks channels and, at the same time, activates IK-ATP channels. The balance of these forces is easily disrupted, and QT prolongation is worsened by hypokalaemia. Napoleon was chronically treated with tartar emetic for gastrointestinal symptoms, and the day before he died he was given a huge dose of calomel (mercurous chloride) as a purgative. Both treatments would have caused potassium wastage. In addition, the Emperor was being treated with a decoction containing 'bark'—presumably 'Jesuit's bark'. The quinine in Jesuit's bark is another cause of QT prolongation. It is likely that the immediate cause of the Emperor's death was torsades de pointes, brought on by chronic exposure to arsenic and a medication error. PMID:15286197

  2. Hydrothermal Synthesis Au-Bi2Te3 Nanocomposite Thermoelectric Film with a Hierarchical Sub-Micron Antireflection Quasi-Periodic Structure.

    PubMed

    Tian, Junlong; Zhang, Wang; Zhang, Yuan; Xue, Ruiyang; Wang, Yuhua; Zhang, Zhijian; Zhang, Di

    2015-06-03

    In this work, Au-Bi(2)Te(3) nanocomposite thermoelectric film with a hierarchical sub-micron antireflection quasi-periodic structure was synthesized via a low-temperature chemical route using Troides helena (Linnaeus) forewing (T_FW) as the biomimetic template. This method combines chemosynthesis with biomimetic techniques, without the requirement of expensive equipment and energy intensive processes. The microstructure and the morphology of the Au-Bi(2)Te(3) nanocomposite thermoelectric film was analyzed by X-ray diffraction (XRD), field-emission scanning-electron microscopy (FESEM), and transmission electron microscopy (TEM). Coupled the plasmon resonances of the Au nanoparticles with the hierarchical sub-micron antireflection quasi-periodic structure, the Au-Bi(2)Te(3) nanocomposite thermoelectric film possesses an effective infrared absorption and infrared photothermal conversion performance. Based on the finite difference time domain method and the Joule effect, the heat generation and the heat source density distribution of the Au-Bi(2)Te(3) nanocomposite thermoelectric film were studied. The heterogeneity of heat source density distribution of the Au-Bi(2)Te(3) nanocomposite thermoelectric film opens up a novel promising technique for generating thermoelectric power under illumination.

  3. Beneath the Precambrian belt in the deepest well ever drilled in Montana

    SciTech Connect

    Peterson, C.H.; Nims, R.C. )

    1991-06-01

    The Union 1-B30 Federal Canyon Creek well was drilled in the Montana thrust belt approximately 27 mi northwest of Helena to test Mississippian carbonates on a seismic structure in the footwall of the Eldorado thrust. The well penetrated over 12,000 ft of thrusted Precambrian belt metasedimentary rocks before encountering a faulted and fractured footwall section of Cretaceous through Mississippian shales, sandstones, and carbonates. The 17,818-ft test, the deepest well ever drilled in Montana, was plugged and abandoned after recovering fresh water during production tests in the Madison Group. The original structural interpretation of the Canyon Creek prospect, based solely on 24- and 48-fold seismic data, was that of a relatively simple thrust-faulted, double plunging anticline in the footwall of the Eldorado thrust. The 1-B30 well indicated that a more complex duplex structure was present under the Eldorado thrust, and that the madison was deeper than anticipated with a true vertical depth of 16,688 ft.

  4. Clinical bioequivalence of a dose of clopidogrel Leti Cravid tablets 75 mg versus clopidogrel Sanofi Plavix tablets 75 mg administered on a daily dose for 7 days on healthy volunteers: a clinical trial.

    PubMed

    Müller, Aixa; Octavio, José; González, María Y; Contreras, Jesús; Méndez, Gisela; Portillo, Milagros; Valero, Zuleima

    2010-01-01

    Patients undergoing percutaneous coronary intervention procedures, as in patients with coronary disease, should receive treatment indefinitely with acetylsalicylic acid and clopidogrel. New brands of clopidogrel have been developed at lower costs, for helping to avoid premature suspension of antiplatelet therapy, as Cravid Leti Laboratories clopidogrel. Its effectiveness and safety must be compared with Plavix international standard. A prospective, comparative, cross-over, and randomized study was conducted in healthy volunteers. Each group received 1 tablet of Clopidogrel Leti or Clopidogrel Sanofi, 75 mg in a single dose daily for 7 days, followed by 7-day washout period before administration of second treatment. Platelet aggregation was measured at the start of each period and at 7 days of treatment through optical aggregometry, using an optical aggregometer 490-2D Chrono-Log, with a self-calibration system working with platelet-rich plasma with readings 0%-100% of light transmission. An important decrease of platelet aggregation was observed in both groups at 7 days of treatment of more than 50%, independent of adenosine diphosphate reactive (Helena and Chrono-Log) used for aggregation (P < 0.05). The relationship between the mean and 90% confidence interval ratio obtained with the 2 different adenosine diphosphate brands were between 80% and 125%, therefore, it can be considered that both brands are bioequivalent and perfectly exchangeable.

  5. Serendipity or prepared mind? Recollections of the KOP translocation (1967) and of one form of Perrault syndrome.

    PubMed

    Opitz, John M

    2014-12-01

    The human X/autosome translocation, designated KOP, was discovered by Dr. Philip D. Pallister in Montana in 1967 in a young man with apparent Klinefelter syndrome. Collaboratively it was possible to elucidate the genetic nature of his unprecedented chromosome rearrangement and its developmental effects in mother and son. In retrospect, these clinical and genetic studies at the height of the somatic cell genetics era (Ruddle, Siniscalco, etc.) presented human genetics with a highly productive opportunity to begin gene mapping of autosomes and the X chromosome. The late Victor McKusick considered the discovery of the KOP translocation, as he determined personally in Montana, one of the major transforming events in human genetics. The Perrault syndrome evaluated in two families in Montana and one in Sicily for familial deafness, primary amenorrhea and neurologic impairment (progressive in some), turned out to be heterogeneous. In the "hands" of Dr. M.-C. King of Seattle four forms of Perrault syndrome have been identified. The autosomal recessive mutation present in the P family studied with Dr. Pallister in Helena, turned out to affect the mitochondrial histidyl tRNA synthetase gene present in prokaryotes, annelids, fungi and mammals, hence, must already have been present in LUCA some 3.8 billion years ago.

  6. Infrared-induced variation of the magnetic properties of a magnetoplasmonic film with a 3D sub-micron periodic triangular roof-type antireflection structure.

    PubMed

    Tian, Junlong; Zhang, Wang; Huang, Yiqiao; Liu, Qinglei; Wang, Yuhua; Zhang, Zhijian; Zhang, Di

    2015-01-26

    A carbon-matrix nickel composite magnetoplasmonic film with a 3D sub-micron periodic triangular roof-type antireflection structure (SPTAS) was fabricated via a simple and promising method that combines chemosynthesis with biomimetic techniques. The Troides helena (Linnaeus) forewing (T_FW) was chosen as the biomimetic template. The carbon-matrix Ni wing fabricated via electroless Ni deposition for 6 h (CNMF_6h) exhibits enhanced infrared absorption. Over a wavelength range (888-2500 nm), the enhancement of the infrared absorption of CNMF_6h is up to 1.85 times compared with the T_FW. Furthermore, infrared excitation induces a photothermal effect that results in variation in the magnetic properties of the carbon-matrix Ni wing. The magnetic properties were also confirmed using atomic force microscopy (AFM) and magnetic force microscopy (MFM). The good correlation between the AFM and MFM images demonstrates that the surface of the SPTAS of CNMF_6h exhibits strong magnetic properties. The infrared induced photothermal effect that results in magnetic variation is promising for use in the design of novel magnetoplasmonic films with potential applications in infrared information recording and heat-assisted magnetic recording.

  7. Infrared-induced variation of the magnetic properties of a magnetoplasmonic film with a 3D sub-micron periodic triangular roof-type antireflection structure

    NASA Astrophysics Data System (ADS)

    Tian, Junlong; Zhang, Wang; Huang, Yiqiao; Liu, Qinglei; Wang, Yuhua; Zhang, Zhijian; Zhang, Di

    2015-01-01

    A carbon-matrix nickel composite magnetoplasmonic film with a 3D sub-micron periodic triangular roof-type antireflection structure (SPTAS) was fabricated via a simple and promising method that combines chemosynthesis with biomimetic techniques. The Troides helena (Linnaeus) forewing (T_FW) was chosen as the biomimetic template. The carbon-matrix Ni wing fabricated via electroless Ni deposition for 6 h (CNMF_6h) exhibits enhanced infrared absorption. Over a wavelength range (888-2500 nm), the enhancement of the infrared absorption of CNMF_6h is up to 1.85 times compared with the T_FW. Furthermore, infrared excitation induces a photothermal effect that results in variation in the magnetic properties of the carbon-matrix Ni wing. The magnetic properties were also confirmed using atomic force microscopy (AFM) and magnetic force microscopy (MFM). The good correlation between the AFM and MFM images demonstrates that the surface of the SPTAS of CNMF_6h exhibits strong magnetic properties. The infrared induced photothermal effect that results in magnetic variation is promising for use in the design of novel magnetoplasmonic films with potential applications in infrared information recording and heat-assisted magnetic recording.

  8. Inter-annual variability in CMIP5 models and the mean biases

    NASA Astrophysics Data System (ADS)

    Polo, Irene; Rodriguez-Fonseca, Belen; Mohino, Elsa; Losada, Teresa; Villamayor, Julian

    2017-04-01

    Analysis of model systematic errors in Sea Surface Temperature (SST) has generally focused on local processes and particular basins. Mean warm bias over the subtropical upwelling systems in coupled models are largely studied and local cloud cover, alongshore winds and ocean stratification are pointed out as the responsible processes. Mean errors may have impacts on the SST variability but this is less understood. In this study we investigate the relation between mean global bias and how models perform the variability at inter-anual time-scales. In order to understand the relation between bias and variability, we calculate the SST variability modes for the models and associated parameters are confronted with the mean bias among models, thus we conclude how realistic are the models in simulating the variability depending on the mean SST bias. Results suggest that models with cooler (warmer) that average SST mean bias over the southern hemisphere reproduce better (worse) the inter-annual El Nino Pacific variability. Unlike the Pacific, the skill for reproducing the inter-annual Atlantic Nino mode is related to SST over the southern ocean and this is more associated with the proper simulation of the Sta Helena high pressure system than the equatorial Atlantic oceanic thermocline. This work also emphasizes the importance of using the model bias for understanding processes operating in the SST variability.

  9. O-Glycosylation of snails.

    PubMed

    Stepan, Herwig; Pabst, Martin; Altmann, Friedrich; Geyer, Hildegard; Geyer, Rudolf; Staudacher, Erika

    2012-05-01

    The glycosylation abilities of snails deserve attention, because snail species serve as intermediate hosts in the developmental cycles of some human and cattle parasites. In analogy to many other host-pathogen relations, the glycosylation of snail proteins may likewise contribute to these host-parasite interactions. Here we present an overview on the O-glycan structures of 8 different snails (land and water snails, with or without shell): Arion lusitanicus, Achatina fulica, Biomphalaria glabrata, Cepaea hortensis, Clea helena, Helix pomatia, Limax maximus and Planorbarius corneus. The O-glycans were released from the purified snail proteins by β-elimination. Further analysis was carried out by liquid chromatography coupled to electrospray ionization mass spectrometry and - for the main structures - by gas chromatography/mass spectrometry. Snail O-glycans are built from the four monosaccharide constituents: N-acetylgalactosamine, galactose, mannose and fucose. An additional modification is a methylation of the hexoses. The common trisaccharide core structure was determined in Arion lusitanicus to be N-acetylgalactosamine linked to the protein elongated by two 4-O-methylated galactose residues. Further elongations by methylated and unmethylated galactose and mannose residues and/or fucose are present. The typical snail O-glycan structures are different to those so far described. Similar to snail N-glycan structures they display methylated hexose residues.

  10. Iron hydroxy carbonate formation in zerovalent iron permeable reactive barriers: characterization and evaluation of phase stability.

    PubMed

    Lee, Tony R; Wilkin, Richard T

    2010-07-30

    Predicting the long-term potential of permeable reactive barriers for treating contaminated groundwater relies on understanding the endpoints of biogeochemical reactions between influent groundwater and the reactive medium. Iron hydroxy carbonate (chukanovite) is frequently observed as a secondary mineral precipitate in granular iron PRBs. Mineralogical characterization was carried out using X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, and X-ray absorption spectroscopy on materials collected from three field-based PRBs in the US (East Helena, MT; Elizabeth City, NC; Denver Federal Center, CO). These PRBs were installed to treat a range of contaminants, including chlorinated organics, hexavalent chromium, and arsenic. Results obtained indicate that chukanovite is a prevalent secondary precipitate in the PRBs. Laboratory experiments on high-purity chukanovite separates were carried out to constrain the room-temperature solubility for this mineral. An estimated Gibbs energy of formation (Delta(f)G degrees) for chukanovite is -1174.4 +/- 6 kJ/mol. A mineral stability diagram is consistent with observations from the field. Water chemistry from the three reactive barriers falls inside the predicted stability field for chukanovite, at inorganic carbon concentrations intermediate to the stability fields of siderite and ferrous hydroxide. These new data will aid in developing better predictive models of mineral accumulation in zerovalent iron PRBs. Published by Elsevier B.V.

  11. Iron hydroxy carbonate formation in zerovalent iron permeable reactive barriers: Characterization and evaluation of phase stability

    SciTech Connect

    Wilkin, Richard T.; Lee, T.R.

    2010-10-22

    Predicting the long-term potential of permeable reactive barriers for treating contaminated groundwater relies on understanding the endpoints of biogeochemical reactions between influent groundwater and the reactive medium. Iron hydroxy carbonate (chukanovite) is frequently observed as a secondary mineral precipitate in granular iron PRBs. Mineralogical characterization was carried out using X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, and X-ray absorption spectroscopy on materials collected from three field-based PRBs in the US (East Helena, MT; Elizabeth City, NC; Denver Federal Center, CO). These PRBs were installed to treat a range of contaminants, including chlorinated organics, hexavalent chromium, and arsenic. Results obtained indicate that chukanovite is a prevalent secondary precipitate in the PRBs. Laboratory experiments on high-purity chukanovite separates were carried out to constrain the room-temperature solubility for this mineral. An estimated Gibbs energy of formation ({Delta}{sub f}G{sup o}) for chukanovite is - 1174.4 {+-} 6 kJ/mol. A mineral stability diagram is consistent with observations from the field. Water chemistry from the three reactive barriers falls inside the predicted stability field for chukanovite, at inorganic carbon concentrations intermediate to the stability fields of siderite and ferrous hydroxide. These new data will aid in developing better predictive models of mineral accumulation in zerovalent iron PRBs.

  12. Mediation of psychosocial determinants in the relation between socio-economic status and adolescents' diet quality.

    PubMed

    Michels, Nathalie; Vynckier, Lisa; Moreno, Luis A; Beghin, Laurent; de la O, Alex; Forsner, Maria; Gonzalez-Gross, Marcela; Huybrechts, Inge; Iguacel, Isabel; Kafatos, Antonio; Kersting, Mathilde; Leclercq, Catherine; Manios, Yannis; Marcos, Ascension; Molnar, Denes; Sjöström, Michael; Widhalm, Kurt; De Henauw, Stefaan

    2017-02-03

    To examine the underlying reasons for the positive relation between socio-economic status (SES) and the diet quality of adolescents. In 2081 adolescents (12.5-17.5 years) of the European HELENA study, a continuous variable on diet quality via 2-day 24-h recalls was available. SES was reflected by parental education, parental occupation and family affluence. Mediation by several psychosocial determinants was tested: self-efficacy, availability at school and home, social support, barriers, benefits, awareness and some self-reported influencers (parents, school, taste, health, friends, food readily available, easy preparation, hunger, price and habits). Multiple mediation analyses were adjusted for age, sex and country. The availability of soft drinks and fruit at home, social support, parental influence, barriers, price influence, taste influence, health influence and food being readily available were significant mediators. The multiple mediation indirect effect accounted for 23-64% of the total effect. Both occupation and education and both maternal and paternal factors could be explained by the mediation. The unavailability of soft drinks was the strongest mediator (17-44% of the total effect). Up to 64% of the positive relation between SES and the diet quality in adolescence could be explained by several healthy eating determinants. Focusing on these factors in low-SES populations can minimize social inequalities in diet and health by improving the diet of these specific adolescents.

  13. Age, geochemical characteristics and petrogenesis of Cenozoic intraplate alkaline volcanic rocks in the Bafang region, West Cameroon

    NASA Astrophysics Data System (ADS)

    Tchuimegnie Ngongang, Nicaise Blaise; Kamgang, Pierre; Chazot, Gilles; Agranier, Arnaud; Bellon, Hervé; Nonnotte, Philippe

    2015-02-01

    The origin of the volcanism in the Cameroon Volcanic Line and the nature of its mantle sources are still highly controversial. We present major and trace element compositions as well as Sr-Nd-Pb-Hf isotopic results on mafic and intermediate lavas from the Bafang area in the central part of the Cameroon Volcanic Line. The lavas range from basanites and basalts to hawaiites and mugearites with an alkaline affinity and were emplaced between 10 and 6 Ma ago. The evolution from basalts and basanites to more differentiated rocks involved fractionation of olivine, clinopyroxene and Fe-Ti oxides, but the isotopic compositions show that crustal contamination processes affected some magmas during their ascent in the crust. Basalts and basanites originated from a garnet-bearing mantle source and their differences are mostly due to variable degrees of partial melting. The isotopic composition of the uncontaminated samples imply the participation of three distinct mantle components, the depleted MORB mantle (not dominant), an enriched component and a Pb radiogenic component similar to the source of the Mount Cameroon. Combined with previously published isotopic data from the Cameroon Volcanic Line, our new results indicate that the source of the volcanism mostly reside in the lithospheric mantle and is different from what can be expected from the melting of a mantle accreted from or modified during the emplacement of the St. Helena mantle plume.

  14. SHRIMP U-Pb geochronology of volcanic rocks, Belt Supergroup, western Montana: Evidence for rapid deposition of sedimentary strata

    USGS Publications Warehouse

    Evans, K.V.; Aleinikoff, J.N.; Obradovich, J.D.; Fanning, C.M.

    2000-01-01

    New sensitive high resolution ion microprobe (SHRIMP) U-Pb zircon analyses from two tuffs and a felsic flow in the middle and upper Belt Supergroup of northwestern Montana significantly refine the age of sedimentation for this very thick (15-20 km) Middle Proterozoic stratigraphic sequence. In ascending stratigraphic order, the results are (1) 1454 ?? 9 Ma for a tuff in the upper part of the Helena Formation at Logan Pass, Glacier National Park; (2) 1443 ?? 7 Ma for a regionally restricted porphyritic rhyolite to quartz latite flow of the Purcell Lava in the Yaak River region; and (3) 1401 ?? 6 Ma for a tuff in the very thin transition zone between the Bonner Quartzite and Libby Formation, west of the town of Libby. Combining these ages with those previously published by other workers for ca. 1470-Ma sills in the lower Belt in Montana and Canada indicates that all but the uppermost Belt strata (about 1700 m) were deposited over a period of about 70 million years, considerably reducing the time span from longstanding estimates ranging from 250 to 600 million years. Calculated sediment accumulation rates between dated samples indicates rapid, but not unreasonable, values for early Belt strata, with decreasing rates through time. These ages also suggest the inadequacy of previously published paleomagnetic data to resolve Belt Supergroup chronology at an appropriate level of accuracy.

  15. CIPROFLOXACIN RESISTANCE PATTERN AMONG BACTERIA ISOLATED FROM PATIENTS WITH COMMUNITY-ACQUIRED URINARY TRACT INFECTION.

    PubMed

    Reis, Ana Carolina Costa; Santos, Susana Regia da Silva; Souza, Siane Campos de; Saldanha, Milena Góes; Pitanga, Thassila Nogueira; Oliveira, Ricardo Riccio

    2016-07-11

    To identify the main bacterial species associated with community-acquired urinary tract infection (UTI) and to assess the pattern of ciprofloxacin susceptibility among bacteria isolated from urine cultures. We conducted a retrospective study in all the patients with community-acquired UTI seen in Santa Helena Laboratory, Camaçari, Bahia, Brazil during five years (2010-2014). All individuals who had a positive urine culture result were included in this study. A total of 1,641 individuals met the inclusion criteria. Despite the fact that participants were female, we observed a higher rate of resistance to ciprofloxacin in males. The most frequent pathogens identified in urine samples were Escherichia coli, Klebsiella pneumoniae and Staphylococcus saprophyticus. Antimicrobial resistance has been observed mainly for ampicillin, sulfamethoxazole + trimethoprim and ciprofloxacin. Moreover, E. coli has shown the highest rate of ciprofloxacin resistance, reaching 36% of ciprofloxacin resistant strains in 2014. The rate of bacterial resistance to ciprofloxacin observed in the studied population is much higher than expected, prompting the need for rational use of this antibiotic, especially in infections caused by E. coli. Prevention of bacterial resistance can be performed through control measures to limit the spread of resistant microorganisms and a rational use of antimicrobial policy.

  16. Ethno-cultural diversity in the experience of widowhood in later life: Chinese widows in Canada.

    PubMed

    Martin-Matthews, Anne; Tong, Catherine E; Rosenthal, Carolyn J; McDonald, Lynn

    2013-12-01

    This paper utilizes Helena Znaniecka Lopata's concept of life frameworks as a lens through which to understand the experience of widowhood amongst elderly Chinese immigrant women living in Toronto, Canada. While Lopata defined life frameworks as including social supports, social relations and social roles, for these widows, personal resources (framed in Chinese cultural context) were also important aspects of life frameworks. In-depth interviews with 20 widows contacted through a Chinese community center were conducted in Mandarin and Cantonese and then transcribed and interpreted through team-based qualitative analyses. These women ranged in age from 69 to 93 years and had been in Canada an average of 17 years, with over half of them widowed following immigration. Our analysis framed the widows' narratives in terms of four types of supports defined by Lopata: social, service, financial and emotional supports. They had fairly extensive social and service supports focused primarily around family and the Chinese community. Although norms of filial piety traditionally dictate sons as primary supports, daughters predominated as providers of supports to these widows. Interpreted from a life course perspective, financial supports were deemed sufficient, despite overall limited financial means. Emotional support was more nuanced and complex for these widows. Loneliness and feelings of social isolation were prevalent. Nevertheless, themes of acceptance and satisfaction dominated our findings, as did reciprocity and exchange. The narrative accounts of these widows depict a complexity of experience rooted in their biographies as Chinese women and as immigrants, rather than primarily in widowhood itself. © 2013.

  17. Comparison of different approaches to calculate nutrient intakes based upon 24-h recall data derived from a multicenter study in European adolescents.

    PubMed

    Julián-Almárcegui, Cristina; Bel-Serrat, Silvia; Kersting, Mathilde; Vicente-Rodriguez, German; Nicolas, Genevieve; Vyncke, Krishna; Vereecken, Carine; De Keyzer, Willem; Beghin, Laurent; Sette, Stefania; Halström, Lena; Grammatikaki, Eva; Gonzalez-Gross, Marcela; Crispim, Sandra; Slimani, Nadia; Moreno, Luis; De Henauw, Stefaan; Huybrechts, Inge

    2016-03-01

    The European "Healthy Lifestyle in Europe by Nutrition in Adolescence" (HELENA) project evaluated two different approaches to harmonize the matching procedures between 24-h recall data and food composition databases. In the first approach, the 24-h recall data were linked to the local/national food composition databases using standardized procedures, while in the second approach, the 24-h recall data were linked to the German BLS database which includes a larger food list. The aim of this paper was to compare the intakes of energy and eight nutrient components calculated via both approaches. Two non-consecutive 24-h recalls were performed in 1268 adolescents. Energy, carbohydrates, proteins, fat, fiber, water, alcohol, calcium and vitamin C were calculated via the two approaches at individual level. Paired samples t test and Pearson's correlations were used to compare the mean intakes of energy and the eight mentioned nutrients and to investigate the possible associations between the two approaches. Small but significant differences were found between the intakes of energy and the eight food components when comparing both approaches. Very strong and strong correlations (0.70-0.95) were found between both methods for all nutrients. The dietary intakes obtained via the two different linking procedures are highly correlated for energy and the eight nutrients under study.

  18. Gamma spectrometric and magnetic interpretation of Cabaçal copper deposit in Mato Grosso (Brazil): Implications for hydrothermal fluids remobilization

    NASA Astrophysics Data System (ADS)

    Ribeiro, Vanessa Biondo; Mantovani, Marta Silvia Maria

    2016-12-01

    The Cabaçal Au-Zn-Cu Deposit, Mato Grosso, Brazil, was explored between 1987 and 1991, when 869,279 tons of ore rich in Au and Cu have been extracted. The hydrothermal alteration in the Cabaçal mine suggests a volcanogenic genetic model in which hydrothermal centers generated sericitization, chloritization and silicification alterations at different stages. The hydrothermal alteration affects the radioelements in different ways, generating a characteristic gamma spectrometric signature for the affected area. The eTh/K ratio map evidenced that the hydrothermalized area extends beyond south limits of the Cabaçal gabbro dykes formation, which host Cabaçal and Santa Helena mines. Magnetic data over the region show the same behavior for this formation, indicating that the magnetic source extends in subsurface. This behavior was recovered by the 3D model inverted for the region, which recovered a positive apparent magnetic contrast associated with this body, with an increasing deepness to south. It is possible that the south subsurface portion of the magnetic source may contain economic concentrations of Au remobilized by hydrothermal fluids. However, to confirm this hypothesis it is necessary to develop geochemical and borehole analysis of the area.

  19. Three spiroplasmas isolated from Haematopota sp. (Diptera:Tabanidae) in France.

    PubMed

    Vazeille-Falcoz, M; Hélias, C; Le Goff, F; Rodhain, F; Chastel, C

    1997-03-01

    On August 1991, three spiroplasmas (Tab 2A, Tab 2B and Tab 4C) were isolated from Haematopota sp. flies collected from Indre-et-Loire, France. Isolations were made at 28 degrees C in MD1 medium from ground individual flies, but not from external washings. All isolates adapted well to SP4 medium at 30 and 37 degrees C and were triple cloned before serological identification. Using the cross deformation test, the 3 isolates were compared with 42 known spiroplasmas isolated from diseased plants, flowers, various insects and ticks belonging to 25 serological groups. Each isolate cross-reacted with others and exhibited weak 1-way reactions with TABS-2 or PLHS-1, two spiroplasmas isolated in the United States from respectively Tabanus abactor Philip and Panorpa helena L, a scorpion-fly. These results suggest that Tab 2A, Tab 2B and Tab 4C together with TABS-2 and PLHS-1 may represent, members of a new serological supergroup.

  20. Defining a clinically meaningful effect for the design and interpretation of randomized controlled trials.

    PubMed

    Keefe, Richard S E; Kraemer, Helena C; Epstein, Robert S; Frank, Ellen; Haynes, Ginger; Laughren, Thomas P; McNulty, James; Reed, Shelby D; Sanchez, Juan; Leon, Andrew C

    2013-05-01

    This article captures the proceedings of a meeting aimed at defining clinically meaningful effects for use in randomized controlled trials for psychopharmacological agents. Experts from a variety of disciplines defined clinically meaningful effects from their perspectives along with viewpoints about how to design and interpret randomized controlled trials. The article offers relevant, practical, and sometimes anecdotal information about clinically meaningful effects and how to interpret them. The concept for this session was the work of co-chairs Richard Keefe and the late Andy Leon. Faculty included Richard Keefe, PhD; James McNulty, AbScB; Robert S. Epstein, MD, MS; Shelby D. Reed, PhD; Juan Sanchez, MD; Ginger Haynes, PhD; Andrew C. Leon, PhD; Helena Chmura Kraemer, PhD; Ellen Frank, PhD, and Kenneth L. Davis, MD. The term clinically meaningful effect is an important aspect of designing and interpreting randomized controlled trials but can be particularly difficult in the setting of psychopharmacology where effect size may be modest, particularly over the short term, because of a strong response to placebo. Payers, regulators, patients, and clinicians have different concerns about clinically meaningful effects and may describe these terms differently. The use of moderators in success rate differences may help better delineate clinically meaningful effects. There is no clear consensus on a single definition for clinically meaningful differences in randomized controlled trials, and investigators must be sensitive to specific concerns of stakeholders in psychopharmacology in order to design and execute appropriate clinical trials.