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Sample records for west central sinai

  1. Improvement of Low-Grade Silica Sand Deposits in Um Bogma Area-West Central Sinai, Egypt

    International Nuclear Information System (INIS)

    Abdel-Rahman, I.F.; El Shennawy, A.A.

    2012-01-01

    There are several silica sand deposits in Sinai, but they require upgrading to provide a raw materials acceptable for the glass manufacture. This study records beneficiation of low-grade silica sand deposits near Um Bogma at west central Sinai. The improvement techniques of ore dressing involving wet sieving, attrition scrubbing, decantation, gravimetric and magnetic separations have been applied depending on the physical properties of the constituents.

  2. Extraction of uranium and copper from sulphate leach liquors of West Central Sinai uraniferrous siltstone of Egypt

    International Nuclear Information System (INIS)

    Amer, T.E.; Mahdy, M.A.; El-Hazek, N.T.; El Bayoumi, R.M.; Hassanein, S.

    2000-01-01

    Extraction of uranium and copper from sulphate leach liquors of west central Sinai ore samples were performed using solvent extraction technique. Sulphate leach solutions were processed for the extraction of copper using 3% v/v LIX 973N. Copper extractions higher than 98.1% were obtained. Then, uranium was extracted using a tertiary amine. Two amines have been studied 2% v/v tri-n-octyl amine and 1.5% Alamine 336. Parameters studied included solvents concentration, contact time and solution pH. Stripping of uranium and copper were studied using sodium carbonate and sulphuric acid, respectively. Conditions were established for determining the number of stages required for extraction and stripping of copper and uranium through the construction of the corresponding McCabe-Theile diagrams. The results obtained have been utilized to formulate a proposed flowsheet for the production of uranium and copper from west central Sinai ore samples. (author)

  3. Bio leaching of Uranium - bearing material from Abu Thor area, West Central Sinai, Egypt for recovering uranium

    International Nuclear Information System (INIS)

    Abd El Wahab, G.M.; Amin, M.M.; Aita, S.K.

    2012-01-01

    A uranium-bearing material was recorded within the Intra-Carboniferous Paleokarst Profile of Um-Bogma Formation at Abu Thor area, West Central Sinai, Egypt. The present paper is concerned with the bio leaching of U and Cu using Aspergillus Niger (A. Niger) followed their proper recovery. The working Abu Thor representative sample assays 0.22% U as the element of interest as well as up to 25% CuO beside the other rock constituents SiO 2 (33%), Al 2 O 3 (10.4%) and CaO(8.5%). The effective bio leaching of U and Cu from Abu Thor ore sample using A.Niger was performed at the following optimum conditions: an incubation time of 6 days, sample/ liquid (S/L) ratio of 1/10, ph value of 1 and a temperature of 60 degree C. The prepared bio leach liquor assays 0.19 g/l of U and 15.8 g/l of Cu with leaching efficiencies of 97% and 79%, respectively. Uranium was recovered using 25% TBP in kerosene at O/A ratio of 1/1 and contact time of 5 min with achieved extraction efficiency of 96%. However the stripping of U was conducted by using 8% Na 2 CO 3 at A/O ratio of 1/1 and contact time of 5 min with stripping efficiency reached 99%. On the other hand, Cu was directly precipitated as CuS using the freshly released H 2 S gas with the addition of solid Na 2 S. The optimum precipitation conditions were S/L ratio of 1/100, ph 1.5 and room temperature where the precipitation efficiency of Cu achieved 99%

  4. Model equations for Calculating Rn-gas Concentrations in Air of Uranium Exploratory Tunnels, Allouga, West-Central Sinai , Egypt

    International Nuclear Information System (INIS)

    Abdel-Monem, A.A.; Soliman, S.F.H.; Abd El-Kader, F.H.; El-Naggar, A.M.; Eissa, H.M.; Abd El-Hafez, A.A.

    2001-01-01

    Gabal Allouga area is located some 40 km due east from Abu Zenima town on the east coast of the Gulf of Suez, West-Central Sinai, Egypt. A network of exploratory tunnels totaling 670m in length and approximately 2x2 m in cross section, were excavated within a paleosol clayey bed. They host (Fe, Mn)-, Cu-, and U-mineralizations. Portions of the tunnels are naturally ventilated and others portions are non-ventilated and show ground water seepage through fractures. Model equations were developed for calculating the Rn-gas concentrations in the air of the tunnels under dry conditions where Rn-gas transport is mainly by air flow through porous media as well as for wet conditions where Rn-gas transport is mainly by ground water flow into the tunnels. Under dry conditions the model calculated Rn-gas concentrations(15.2-60.6 PCi/1) are consistent with measured values by active techniques (3.26-22.85 pCi/1) and by SSNTD techniques (19-69.1 pCi/1) when the Rn-emanation coefficient (alpha= 0.05-0.2), the emanating rock thickness (X=10 cm) and U-concentration averages 30 ppm. Under wet and non-ventilated conditions the model calculated Rn-gas concentrations (159-1248 pCi/1) are consistent with the measured values by active techniques (231-1348 pCi/1) and by SSNTD techniques (144-999pCi/1), when the Rn-emanation coefficient (alpha=0.1-0.25), the ground water flow (F=0.04-0.10 ml/s -1 cm -2 ) and U-concertrations (100-250ppm)

  5. Environmental Radiation Studies in Mn-Mines at Wadi Naseib Area, South West Sinai, Egypt

    International Nuclear Information System (INIS)

    Said, A.F.; El-Galy, M.M.; El-Feky, M.G.; Mohamed, M.S.

    2005-01-01

    The activity concentrations of radon and thoron decay products beside the gamma dose rate of the naturally occurring radionuclides were measured and calculated in two underground manganese mines, M1 and M2 at Wadi Naseib area in Sinai. Radon daughters and thoron daughters working levels were calculated using Rolle method after measuring the alpha activity. The measurements were taken at different stations inside the two mines. The radiation levels were calculated at seven stations inside the first mine and at ten stations inside the second mine. It was found that, the radon daughter products have major effect while the thoron daughter products and -dose have the minor effect in U/G mines. These measurements will be considered in perspective with the ventilation required to lower the radon decay products inside the mine in order to establish adequate working level that conform with proper radiation safety requirements for workers inside these mines

  6. Geophysical measurements for subsurface mapping and groundwater exploration at the central part of the Sinai peninsula, Egypt

    International Nuclear Information System (INIS)

    Sultan, S.A.; Alla, M. Abd; Mekhemer, Hatem M.; Santos, F. A. M.

    2009-01-01

    Characterization of a deep aquifer is the main target of the research work presented here. The study area is located in the central part of Sinai, an extremely arid region in Egypt. Different geophysical methods, including resistivity, gravity, and magnetic, were applied in the study area for groundwater exploration. Fifteen vertical electrical soundings were measured with current electrode spacing ranging from AB = 10 m to AB= 6000 m, in order to detect the deep aquifer in the study area. The resistivity 1D models were used to construct a geoelectrical cross-section to define the subsurface stratigraphy units, including the water-bearing aquifer. The geoelectrical cross-sections showed that the upper part of the subsurface consists of four geoelectric units. The deep aquifer is lodged by the last unit constituted of Nubian sandstone (Lower Cretaceous deposits). The depth of the top of the Nubian sandstone ranges between 300 and 1000 m. The resistivity of the aquifer varies between 60 and 400 ohm-m, indicating the existence of good quality water. Gravity and ground magnetic (total magnetic field) measurements were made at one hundred and fifty stations. The combined interpretation of the magnetic and gravity data allowed the determination of the depth of the surface of the granitic basement and the depth of the Conrad surface. The results of the modeling indicate that the basement lies between 1500 and 3150 m depth and that the Conrad surface (interface between the granitic and basaltic layer) is ranging from 7130 to 8780 m. Structural elements (mostly normal faults) NW-SE, N-S and NE-SW oriented, have been detected. These structures are associated with vertical movements that might have controlled the sedimentation of the uppermost geological formations. (author)

  7. New heavy aggregate for offshore petroleum pipeline concrete coating Central West Sinai, Egypt

    Directory of Open Access Journals (Sweden)

    M.I. Abdou

    2014-12-01

    Full Text Available In this paper the local materials used in concrete mix are studied in a manner that they can resist the aggressive marine environment and mechanical damage, which can occur at several stages during transportation, construction and installation of the pipelines. In earlier studies we succeeded in finding the Egyptian ilmenite ore adequate for concrete weight coating and already utilized for many pipeline projects in Egypt. According to the presence of about 30% titanium oxides in ilmenite composition which may be extracted to be used in others strategically fields, the object of this paper is to study and evaluate the mechanical, chemical and physical properties of another local hematite high density iron ore to be used in subsea concrete weight coating for offshore petroleum pipelines. The results indicate that the local material of Um Bogma hematite iron ore can substitute both imported iron ore and local ilmenite from Abu Ghalaga in this field to reduce the cost effective and increased economical value of local ores. Laboratory and field tests were conducted for the hematite ore forming a concrete mix, composed of hematite ore, cement and fresh water according to international concrete coating specification requirements, the ore produces a concrete mix with 190–195 pcf minimum dry density and compressive strength, after 28 days of hydration, varying from 40 to 45 N/mm2 (400–450 kg/cm2 which comply with the international standards and specifications of submarine petroleum pipeline coating. In addition, local hematite shows superior results than local ilmenite and achieves 190 pcf instead of 180 pcf in case of using ilmenite.

  8. Raw material studies of West Central Serbia

    Directory of Open Access Journals (Sweden)

    Vera Bogosavljević Petrović

    2014-03-01

    Full Text Available This paper deals with raw material problems in the territory of West Central Serbia geologically determined as the Čačak-Kraljevo (or West Morava basin. Our research is presented through the most striking case studies, Lojanik, Vlaška Glava and Lazac.  The Lojanik hill is a silicified forest by origin. It has occasionally been in use from the earliest periods of prehistory until today as a source of black and ochre-coloured flint, opal and silicified wood. A detailed prospection, including the mapping of surface finds using square nets, was conducted during two research campaigns.The Vlaška Glava is an open-air Palaeolithic site at which artefacts made of white, ochre, red, brown and black chert, silicified magnesite, volcanic and metamorphic rocks were found. Our research of primary and secondary geological deposits in the vicinity of the site showed equivalent raw material. We also found an interesting primary deposit of high quality bluish grey flint with outcrop activities (Workshop 1.The Lazac shaft is a contemporary magnesite mine, recently abandoned because of the high percentage of silicon-dioxide. We determined the same raw material in collections found at nearby Neolithic sites. Certain similarities between the wooden support systems of ore exploration in the Middle Ages and modern times were established at the entrance of the shaft.Our research in the territory of the West Morava basin resulted in reconstruction of some links between geological deposits and settlements and also creation of a relevant base for future raw material studies.

  9. Beach rocks of the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Wagle, B.G.

    rocks of the central west coast of India. Vol. 10, No.2, 1990 bonate and Miliolite Problems of Gujarat, PRL Ahmedabad:41 42 Kale VS, RajagllIU SN (1985) Neogene and Quaternary transgres sional and regressional history of the west coast of India... (1990) 10: 111-115 Geo-Marine Letters ~1990 Springtr-Vtrlng Ntw Yolldnc. Beach Rocks of the Central West Coast of India B. G. Wagle National Institute of Oceanography, Dona Paula, Goa, India, 403004 Abstract Along the central west coast of India several...

  10. Minesoil development in central West Virginia

    International Nuclear Information System (INIS)

    Noll, W.J.; Sencindiver, J.C.

    1998-01-01

    Immediately after mining and regrading, minesoils usually have little or no horizon development. Over time, horizons begin to form and definite diagnostic properties develop. The purpose of this study was to document the genesis of a 13-year-old minesoil. The study site was a reclaimed surface mine in Upshur County, West Virginia. Transects were established in 1983 across the site immediately after mining and regrading but before revegetation. Soil pits were excavated to 100+ cm at nine points along those transects. Soil profiles were described at each point, and each minesoil horizon was sampled for analyses. In 1983, only C horizons were described because no structure had developed. In 1996, all nine profiles had developed A horizons ranging in thickness from 2 to 9 cm (mean 6.1 cm). Subsurface horizons (AC, Bw, or C/B), ranging in thickness from 7 to 17 cm (mean 11.8 cm), also had formed in each profile. The A horizons were identified by colors that were darker than the subsoil horizons and the presence of weak fine granular or subangular blocky structure. The AC, Bw and C/B horizons had weak fine to very coarse subangular blocky or weak medium to very thick platy structure. Chemical and physical properties of the minesoils supported the morphological properties indicating that definite pedogenic horizons have formed in 13 years

  11. Environmental reform of West and Central Africa ports

    NARCIS (Netherlands)

    Barnes-Dabban, Harry; Koppen, Van Kris; Mol, Arthur

    2017-01-01

    West and Central Africa ports have historically not paid much attention to environmental issues. In the past decade, however, environmental concerns are beginning to emerge with pockets of innovative responses to environmental risks as the ports undergo institutional and infrastructural reform –

  12. West and Central Africa — Addressing new challenges | IDRC ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2011-01-25

    Jan 25, 2011 ... From his office in Dakar, Senegal, IDRC West and Central Africa Regional ... Privatization of former common land often spells trouble for herders and ... First, the region is increasingly dry, meaning that a source of water that is ...

  13. West and Central African Partnership for Maternal, Newborn, Child ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    High rates of maternal death and teen pregnancy persist in West and Central Africa. Research and programming efforts are not sustainably reducing these rates. The challenge is how to link the evidence on useful health interventions with evidence on how to deliver the interventions effectively. This project aims to build the ...

  14. Educational Research Network for West and Central Africa ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    This grant will assist the Educational Research Network for West and Central Africa (ERNWACA) by providing funding for succession planning, recruiting a regional coordinator (to be based in Mali) and strengthening the Network's capacity to mobilize resources with a view to long-term sustainability.

  15. Sinai Peninsula, Shaded Relief and Colored Height

    Science.gov (United States)

    2004-01-01

    The Sinai Peninsula, located between Africa and Asia, is a result of those two continents pulling apart from each other. Earth's crust is cracking, stretching, and lowering along the two northern branches of the Red Sea, namely the Gulf of Suez, seen here on the west (left), and the Gulf of Aqaba, seen to the east (right). This color-coded shaded relief image shows the triangular nature of the peninsula, with the coast of the Mediterranean Sea forming the northern side of the triangle. The Suez Canal can be seen as the narrow vertical blue line in the upper left connecting the Red Sea to the Mediterranean. The peninsula is divided into three distinct parts; the northern region consisting chiefly of sandstone, plains and hills, the central area dominated by the Tih Plateau, and the mountainous southern region where towering peaks abound. Much of the Sinai is deeply dissected by river valleys, or wadis, that eroded during an earlier geologic period and break the surface of the plateau into a series of detached massifs with a few scattered oases. Two visualization methods were combined to produce the image: shading and color coding of topographic height. The shade image was derived by computing topographic slope in the northwest-southeast direction, so that northwest slopes appear bright and southeast slopes appear dark. Color coding is directly related to topographic height, with green at the lower elevations, rising through yellow and tan, to white at the highest elevations. Elevation data used in this image were acquired by the Shuttle Radar Topography Mission aboard the Space Shuttle Endeavour, launched on Feb. 11, 2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect 3-D measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter (approximately 200-foot) mast, installed

  16. Tidal propagation off the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Unnikrishnan, A.S.

    . [Keywords: Tidal propagation, Mumbai high, Global tidal model, Shelf model, Central west coast of India] Introduction In coastal regions, tides play an important role in determining circulation and hydrography. Barotropic tides coming from the open... with increase in the width of the shelf. Materials and Methods Global tidal models Schwiderski5 used a hydrodynamic interpolation technique to determine the amplitude and phase of tidal constituents of global ocean. Since the availability of satellite...

  17. Herbicide hardwood crop tree release in central West Virginia

    Science.gov (United States)

    Jeffrey D. Kochenderfer; Shepard M. Zedaker; James E. Johnson; David W. Smith; Gary W. Miller

    2001-01-01

    Chemical crop tree release treatments were applied to young hardwood stands at three sites in central West Virginia to evaluate the effectiveness of glyphosate as Accord (41.5% SL), imazapyr as Arsenal AC (53.1% SL) and Chopper (27.6% EC), and triclopyr as Garlon 3A (44.4% triethylamine salt SL), and Garlon 4 (61.6% butoxyethyl ester EC) using hack-and-squirt injection...

  18. CWRD: ICT in Education: Central and West Asia Executive

    OpenAIRE

    Asian Development Bank (ADB)

    2012-01-01

    This publication presents and analyzes the major conclusions of research conducted in Central and West Asia in 2006 through 2011 to ascertain the impact of information and communications technology (ICT) investments on education. It presents a critical overview of the effectiveness of ICT policies and strategies in basic education in Azerbaijan, Kazakhstan, the Kyrgyz Republic, Tajikistan, and Uzbekistan, with shorter studies on Afghanistan, Armenia, Georgia, and Pakistan. Among its many impo...

  19. Sulfur impacts on forest health in west-central Alberta

    International Nuclear Information System (INIS)

    Maynard, D.G.; Stadt, J.J.; Mallett, K.I.; Volney, W.J.A.

    1994-01-01

    A study was conducted to evaluate forest health and tree growth in relation to sulfur deposition in mature and immature lodgepole pine and mature trembling aspen. Soil samples were taken in forests near two sour gas processing plants in west-central Alberta. The soil sample sites were classified into high, medium and low deposition classes. The impact of sulfur deposition on soil and foliar chemistry, tree growth, and forest health was evaluated. The analysis of tree growth, using radial increments, revealed no impact associated with the sulfur deposition class. The only indicators of extensive sulfur impacts on major forest communities detected to date are elevated sulfur concentrations in the surface organic horizon and foliage, the proportion of healthy lodgepole pines, and a depression in the annual specific volume increment. No evidence of widespread forest decline has been found. 42 refs., 35 tabs., 29 figs

  20. Structural Controls on Groundwater Flow in Basement Terrains: Geophysical, Remote Sensing, and Field Investigations in Sinai

    KAUST Repository

    Mohamed, Lamees

    2015-07-09

    An integrated [very low frequency (VLF) electromagnetic, magnetic, remote sensing, field, and geographic information system (GIS)] study was conducted over the basement complex in southern Sinai (Feiran watershed) for a better understanding of the structural controls on the groundwater flow. The increase in satellite-based radar backscattering values following a large precipitation event (34 mm on 17–18 January 2010) was used to identify water-bearing features, here interpreted as preferred pathways for surface water infiltration. Findings include: (1) spatial analysis in a GIS environment revealed that the distribution of the water-bearing features (conductive features) corresponds to that of fractures, faults, shear zones, dike swarms, and wadi networks; (2) using VLF (43 profiles), magnetic (7 profiles) techniques, and field observations, the majority (85 %) of the investigated conductive features were determined to be preferred pathways for groundwater flow; (3) northwest–southeast- to north–south-trending conductive features that intersect the groundwater flow (southeast to northwest) at low angles capture groundwater flow, whereas northeast–southwest to east–west features that intersect the flow at high angles impound groundwater upstream and could provide potential productive well locations; and (4) similar findings are observed in central Sinai: east–west-trending dextral shear zones (Themed and Sinai Hinge Belt) impede south to north groundwater flow as evidenced by the significant drop in hydraulic head (from 467 to 248 m above mean sea level) across shear zones and by reorientation of regional flow (south–north to southwest–northeast). The adopted integrated methodologies could be readily applied to similar highly fractured basement arid terrains elsewhere. © 2015 Springer Science+Business Media Dordrecht

  1. Hydrology of the alluvial, buried channel, basal Pleistocene and Dakota aquifers in west-central Iowa

    Science.gov (United States)

    Runkle, D.L.

    1985-01-01

    A ground-water resources investigation in west-central Iowa indicates that water is available from alluvial, buried channel, basal Pleistocene, and Dakota aquifers. The west-central Iowa area includes Audubon, Carrol1, Crawford, Greene, Guthrie, Harrison, Monona, and Shelby Counties.

  2. West Nile virus in overwintering mosquitoes, central Europe

    Czech Academy of Sciences Publication Activity Database

    Rudolf, I.; Betášová, L.; Blažejová, H.; Venclíková, Kristýna; Straková, P.; Šebesta, O.; Mendel, J.; Bakonyi, T.; Schaffner, F.; Nowotny, N.; Hubálek, Z.

    2017-01-01

    Roč. 10, 2 October (2017), s. 1-4, č. článku 452. ISSN 1756-3305 Institutional support: RVO:61389013 Keywords : West Nile fever * West Nile virus * Flavivirus Subject RIV: EE - Microbiology, Virology OBOR OECD: Virology Impact factor: 3.080, year: 2016

  3. Holocene Dynamics of Temperate Rainforests in West-Central Patagonia

    Directory of Open Access Journals (Sweden)

    Virginia Iglesias

    2018-01-01

    Full Text Available Analyses of long-term ecosystem dynamics offer insights into the conditions that have led to stability vs. rapid change in the past and the importance of disturbance in regulating community composition. In this study, we (1 used lithology, pollen, and charcoal data from Mallín Casanova (47°S to reconstruct the wetland, vegetation, and fire history of west-central Patagonia; and (2 compared the records with independent paleoenvironmental and archeological information to assess the effects of past climate and human activity on ecosystem dynamics. Pollen data indicate that Nothofagus-Pilgerodendron forests were established by 9,000 cal yr BP. Although the biodiversity of the understory increased between 8,480 and 5,630 cal yr BP, forests remained relatively unchanged from 9,000 to 2,000 cal yr BP. The charcoal record registers high fire-episode frequency in the early Holocene followed by low biomass burning between 6,500 and 2,000 cal yr BP. Covarying trends in charcoal, bog development, and Neoglacial advances suggest that climate was the primary driver of these changes. After 2,000 cal yr BP, the proxy data indicate (a increased fire-episode frequency; (b centennial-scale shifts in bog and forest composition; (c the emergence of vegetation-fire linkages not recorded in previous times; and (d paludification in the last 500 years possibly associated with forest loss. Our results therefore suggest that Nothofagus-Pilgerodendron dominance was maintained through much of the Holocene despite long-term changes in climate and fire. Unparalleled fluctuations in local ecosystems during the last two millennia were governed by disturbance-vegetation-hydrology feedbacks likely triggered by greater climate variability and deforestation.

  4. Gas-charged sediments in shallow waters off Redi along the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Subbaraju, L.V.; Wagle, B.G.

    This study reports the occurrence of gas-charged sediments in the nearshore areas of the west coast of India. High resolution shallow seismic reflection profiles on the nearshore area along central west coast of India, at water depths of 11-18 m...

  5. West and Central African Partnership for Maternal, Newborn, Child ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Research and programming efforts are not sustainably reducing these rates. ... Bridging gaps and barriers to better health outcomes A partnership of leading West ... International Water Resources Association, in close collaboration with IDRC, ...

  6. West Nile virus in overwintering mosquitoes, central Europe

    Czech Academy of Sciences Publication Activity Database

    Rudolf, Ivo; Betášová, Lenka; Blažejová, Hana; Venclíková, Kristýna; Straková, Petra; Šebesta, Oldřich; Mendel, Jan; Bakonyi, T.; Schaffner, F.; Nowotny, N.; Hubálek, Zdeněk

    2017-01-01

    Roč. 10, č. 452 (2017), č. článku 452. ISSN 1756-3305 R&D Projects: GA ČR(CZ) GA16-20054S EU Projects: European Commission(XE) 261504 - EDENEXT Institutional support: RVO:68081766 Keywords : West Nile fever * West Nile virus * Flavivirus * Hibernation * Overwintering * Culex pipiens * Anopheles maculipennis * Culiseta annulata * Czech Republic Subject RIV: EE - Microbiology, Virology OBOR OECD: Parasitology Impact factor: 3.080, year: 2016

  7. Hydrogeology and Analysis of Aquifer Characteristics in West-Central Pinellas County, Florida

    National Research Council Canada - National Science Library

    Broska, James C; Barnette, Holly L

    1999-01-01

    The U.S. Geological Survey, in cooperation with Pinellas County, Florida, conducted an investigation to describe the hydrogeology and analyze the aquifer characteristics in west-central Pinellas County...

  8. Benthic foraminifera as proxy for oxygen-depleted conditions off the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Nigam, R.; Mazumder, A.; Henriques, P.J.; Saraswat, R.

    In order to study the response of benthic foraminifera, especially the rectilinear bi- and tri-serial benthic foraminifera (RBF) to oxygen-depleted conditions from the Arabian Sea off central west coast of India, 103 surface sediment samples...

  9. CRED 10 m Gridded multibeam bathymetry of Wake Island, West Central Pacific

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Gridded bathymetry shelf, bank and slope environments of Wake Island, West Central Pacific, under joint management of the United States Dept. of Interior and Air...

  10. CRED 1 meter resolution Reson 8101 multibeam backscatter data of Wake Island, West Central Pacific, 2007.

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Multibeam backscatter imagery extracted from gridded bathymetry of Wake Island, West Central Pacific.These data provide coverage between 0 and 200m meters. The...

  11. CRED 60 m Gridded multibeam bathymetry of Wake Island, West Central Pacific

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Gridded bathymetry shelf, bank and slope environments of Wake Island, West Central Pacific, under joint management of the United States Dept. of Interior and Air...

  12. Graphic pattern of foraminiferal dominance in nearshore region of central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Setty, M.G.A.P.; Nigam, R.; Ambre, N.V.

    Within the inner neritic zone (0-55 m depth) along the central west coast of India, some foraminiferal groups such as @iAmmonia, Elphidium, Trochammina, Bulimina, Bolivina, Nonion, Nonionella@@ and Florilus@@ individually (total foraminiferal number...

  13. Shores of the central west coast of India - a case study using remote sensing data

    Digital Repository Service at National Institute of Oceanography (India)

    Wagle, B.G.

    Geomorphological studies along the Central West Coast of India extending between Bombay to Goa, have been undertaken, using aerial photographs and LANDSAT imagery. Coastal features like active and abandoned cliffs, spits, bars, beach rock, beach...

  14. Nitrogen emission and deposition budget in West and Central Africa

    International Nuclear Information System (INIS)

    Galy-Lacaux, C; Delon, C

    2014-01-01

    Atmospheric nitrogen depends on land surface exchanges of nitrogen compounds. In Sub Saharan Africa, deposition and emission fluxes of nitrogen compounds are poorly quantified, and are likely to increase in the near future due to land use change and anthropogenic pressure. This work proposes an estimate of atmospheric N compounds budget in West and Central Africa, along an ecosystem transect, from dry savanna to wet savanna and forest, for years 2000−2007. The budget may be considered as a one point in time budget, to be included in long term studies as one of the first reference point for Sub Saharan Africa. Gaseous dry deposition fluxes are estimated by considering N compounds concentrations measured in the frame of the IDAF network (IGAC/DEBITS/AFrica) at the monthly scale and modeling of deposition velocities at the IDAF sites, taking into account the bi directional exchange of ammonia. Particulate dry deposition fluxes are calculated using the same inferential method. Wet deposition fluxes are calculated from measurements of ammonium and nitrate chemical content in precipitations at the IDAF sites combined with the annual rainfall amount. In terms of emission, biogenic NO emissions are simulated at each IDAF site with a surface model coupled to an emission module elaborated from an artificial neural network equation. Ammonia emissions from volatilization are calculated from literature data on livestock quantity in each country and N content in manure. NO x and NH 3 emission from biomass burning and domestic fires are estimated from satellite data and emission factors. The total budget shows that emission sources of nitrogen compounds are in equilibrium with deposition fluxes in dry and wet savannas, with respectively 7.40 (±1.90) deposited and 9.01 (±3.44) kgN ha −1 yr −1 emitted in dry savanna, 8.38 (±2.04) kgN ha −1 yr −1 deposited and 9.60 (±0.69) kgN ha −1 yr −1 emitted in wet savanna. In forested ecosystems, the total budget is dominated

  15. The Vaigat Rock Avalanche Laboratory, west-central Greenland

    Science.gov (United States)

    Dunning, S.; Rosser, N. J.; Szczucinski, W.; Norman, E. C.; Benjamin, J.; Strzelecki, M.; Long, A. J.; Drewniak, M.

    2013-12-01

    Rock avalanches have unusually high mobility and pose both an immediate hazard, but also produce far-field impacts associated with dam breach, glacier collapse and where they run-out into water, tsunami. Such secondary hazards can often pose higher risks than the original landslide. The prediction of future threats posed by potential rock avalanches is heavily reliant upon understanding of the physics derived from an interpretation of deposits left by previous events, yet drawing comparisons between multiple events is normally challenging as interactions with complex mountainous terrain makes deposits from each event unique. As such numerical models and the interpretation of the underlying physics which govern landslide mobility is commonly case-specific and poorly suited to extrapolation beyond the single events the model is tuned to. Here we present a high-resolution LiDAR and hyperspectral dataset captured across a unique cluster of large rock avalanche source areas and deposits in the Vaigat straight, west central Greenland. Vaigat offers the unprecedented opportunity to model a sample of > 15 rock avalanches of various age sourced from an 80 km coastal escarpment. At Vaigat many of the key variables (topography, geology, post-glacial history) are held constant across all landslides providing the chance to investigate the variations in dynamics and emplacement style related to variable landslide volume, drop-heights, and thinning/spreading over relatively simple, unrestricted run-out zones both onto land and into water. Our data suggest that this region represents excellent preservation of landslide deposits, and hence is well suited to calibrate numerical models of run out dynamics. We use this data to aid the interpretation of deposit morphology, structure lithology and run-out characteristics in more complex settings. Uniquely, we are also able to calibrate our models using a far-field dataset of well-preserved tsunami run-up deposits, resulting from the 21

  16. Radiometric Characterization of Sand in Northeast Sinai

    International Nuclear Information System (INIS)

    Ramadan, Kh.A.; Badran, H.M.; Ramadan, Kh.A.; Seddeek, M.K.; Sharshar, T.

    2009-01-01

    Thirty-eight locations covering an area of 350 km 2 in northeast Sinai were investigated by gamma-ray spectroscopy using a 50% HPGe detector. The limits of area are Al-Arish North, El-Hasana South, El-Oga East, and El- Gifgafa West. The range of activity concentrations of 238 U, 234 Th, 226 Ra, 232 Th and 40 K are 0.6-35.2, 3.9-22.6, 4.7-29.6, 4.7-23.9, and 108-295 Bq/kg for sands, respectively. 137 Cs in the region ranged from 0.1-8.0 Bq/kg. No major difference between the studied area and that previously investigated in the costal area in North Sinai. Reliable correlations (R2 = 0.8-0.9) among 238 U, 234 Th, and 226 Ra isotopes was obtained. On the other hand, low correlation (R 2 = 0.6-0.7) was obtained from the analysis of the isotopes of 238 U-seies and 232 Th. No evidence of correlation between the concentrations of radioisotopes and pH contents, TOM, and grain size were found. The soil-plant transfer factor are 226 Ra and 232 Th, 40 K, and 137 Cs, respectively. The wild vegetations collected from the studied area have average concentrations of 1.9, 1.4, 1.3, 254, and 0.3 for 234 Th, 226 Ra, 232 Th, 40 K, and 137 Cs, respectively. The average concentrations of 226 Ra, 232 Th, and 40 K in water samples collected from five wells are 0.02, 0.02, and 1.1 Bq/l, respectively. The average absorbed dose rate for the sand samples were calculated to be 19.4 n Gy h-1. The Raeq activities of the sands are lower than the recommended maximum value of 370 Bq kg-1 criterion limit of Raeq activity for building materials

  17. Intraplate earthquake swarms in West Bohemia/Vogtland (Central Europe)

    Czech Academy of Sciences Publication Activity Database

    Horálek, Josef; Fischer, Tomáš

    2010-01-01

    Roč. 60, č. 1 (2010), s. 67-87 ISSN 0449-0576 Grant - others:Norway Grants(NO) A/CZ0046/2/0015 Institutional research plan: CEZ:AV0Z30120515 Keywords : earthquake swarm * West Bohemia/Vogtland * WEBNET seismic network Subject RIV: DC - Siesmology, Volcanology, Earth Structure Impact factor: 1.889, year: 2010

  18. Raccoon roundworm in raccoons in central West Virginia

    Science.gov (United States)

    Sheldon F. Owen; John W. Edwards; W. Mark Ford; James M. Crum; Petra Bohall Wood

    2004-01-01

    We investigated the occurrence of raccoon roundworm (Baylisascaris procyonis) in common raccoons (Procyon lotor) in the Allegheny Mountains of West Virginia during spring (n = 9, April-June) and fall (n = 5, August-October) 2001 and spring (n = 1) and fall (n = 4) 2002. We found no evidence of B. procyonis...

  19. Geographic distribution of phlebotomine sandfly species (Diptera: Psychodidae) in Central-West Brazil

    Science.gov (United States)

    de Almeida, Paulo Silva; de Andrade, Andrey José; Sciamarelli, Alan; Raizer, Josué; Menegatti, Jaqueline Aparecida; Hermes, Sandra Cristina Negreli Moreira; de Carvalho, Maria do Socorro Laurentino; Gurgel-Gonçalves, Rodrigo

    2015-01-01

    This study updates the geographic distributions of phlebotomine species in Central-West Brazil and analyses the climatic factors associated with their occurrence. The data were obtained from the entomology services of the state departments of health in Central-West Brazil, scientific collections and a literature review of articles from 1962-2014. Ecological niche models were produced for sandfly species with more than 20 occurrences using the Maxent algorithm and eight climate variables. In all, 2,803 phlebotomine records for 127 species were analysed. Nyssomyia whitmani, Evandromyia lenti and Lutzomyia longipalpis were the species with the greatest number of records and were present in all the biomes in Central-West Brazil. The models, which were produced for 34 species, indicated that the Cerrado areas in the central and western regions of Central-West Brazil were climatically more suitable to sandflies. The variables with the greatest influence on the models were the temperature in the coldest months and the temperature seasonality. The results show that phlebotomine species in Central-West Brazil have different geographical distribution patterns and that climate conditions in essentially the entire region favour the occurrence of at least one Leishmania vector species, highlighting the need to maintain or intensify vector control and surveillance strategies. PMID:26018450

  20. Shifts in Mycobacterial Populations and Emerging Drug-Resistance in West and Central Africa.

    Directory of Open Access Journals (Sweden)

    Florian Gehre

    Full Text Available In this study, we retrospectively analysed a total of 605 clinical isolates from six West or Central African countries (Benin, Cameroon, Central African Republic, Guinea-Conakry, Niger and Senegal. Besides spoligotyping to assign isolates to ancient and modern mycobacterial lineages, we conducted phenotypic drug-susceptibility-testing for each isolate for the four first-line drugs. We showed that phylogenetically modern Mycobacterium tuberculosis strains are more likely associated with drug resistance than ancient strains and predict that the currently ongoing replacement of the endemic ancient by a modern mycobacterial population in West/Central Africa might result in increased drug resistance in the sub-region.

  1. Isotopic and chemical investigations of quaternary aquifer in sinai peninsula

    International Nuclear Information System (INIS)

    Sadek, M.A.; Ahmed, M.A.; Awad, M.A.

    2001-01-01

    The present study has been conducted to investigate the renewal activity and mineralization potential of the quaternary aquifer in Sinai peninsula using environmental isotopes and hydrochemistry. The quaternary aquifer is vital for development processes as it has a wide extension and shallow water table. The total dissolved salts vary greatly from one location to another and range widely between 510-7060 mg/1, reflecting all categories from fresh to saline water. The change in salinity all over Sinai can be attributed to variations in the rate of evaporation. Leaching and dissolution of terrestrial salts during floods as well as the effects of sea spray and saline water intrusion. The main sources of groundwater recharge are the infiltration of Local precipitation and surface runoff as well as lateral flow through hydraulic connection with fractured aquifers. Snow melt also contributes to aquifer recharge in some areas in the central part of southern Sinai. The environmental stable isotopic contents of the ground water in the quaternary aquifer in Sinai reflect the isotopic composition of rain water from continental and east Mediterranean precipitation and monsonal air mass which comes from Indian ocean as well as the seepage of partly evaporated floodwater. The southern samples are more suitable for drinking and irrigation purposes due to its lower salinity and sodium hazard

  2. Autosomal and mtDNA Markers Affirm the Distinctiveness of Lions in West and Central Africa

    Science.gov (United States)

    Bertola, Laura D.; Tensen, Laura; van Hooft, Pim; White, Paula A.; Driscoll, Carlos A.; Henschel, Philipp; Caragiulo, Anthony; Dias-Freedman, Isabela; Sogbohossou, Etotépé A.; Tumenta, Pricelia N.; Jirmo, Tuqa H.; de Snoo, Geert R.

    2015-01-01

    The evolutionary history of a species is key for understanding the taxonomy and for the design of effective management strategies for species conservation. The knowledge about the phylogenetic position of the lion (Panthera leo) in West/Central Africa is largely based on mitochondrial markers. Previous studies using mtDNA only have shown this region to hold a distinct evolutionary lineage. In addition, anthropogenic factors have led to a strong decline in West/Central African lion numbers, thus, the conservation value of these populations is particularly high. Here, we investigate whether autosomal markers are concordant with previously described phylogeographic patterns, and confirm the unique position of the West/Central African lion. Analysis of 20 microsatellites and 1,454 bp of the mitochondrial DNA in 16 lion populations representing the entire geographic range of the species found congruence in both types of markers, identifying four clusters: 1) West/Central Africa, 2) East Africa, 3) Southern Africa and 4) India. This is not in line with the current taxonomy, as defined by the IUCN, which only recognizes an African and an Asiatic subspecies. There are no indications that genetic diversity in West/Central Africa lions is lower than in either East or Southern Africa, however, given this genetic distinction and the recent declines of lion numbers in this region, we strongly recommend prioritization of conservation projects in West/Central Africa. As the current taxonomic nomenclature does not reflect the evolutionary history of the lion, we suggest that a taxonomic revision of the lion is warranted. PMID:26466139

  3. Autosomal and mtDNA Markers Affirm the Distinctiveness of Lions in West and Central Africa.

    Science.gov (United States)

    Bertola, Laura D; Tensen, Laura; van Hooft, Pim; White, Paula A; Driscoll, Carlos A; Henschel, Philipp; Caragiulo, Anthony; Dias-Freedman, Isabela; Sogbohossou, Etotépé A; Tumenta, Pricelia N; Jirmo, Tuqa H; de Snoo, Geert R; de Iongh, Hans H; Vrieling, Klaas

    2015-01-01

    The evolutionary history of a species is key for understanding the taxonomy and for the design of effective management strategies for species conservation. The knowledge about the phylogenetic position of the lion (Panthera leo) in West/Central Africa is largely based on mitochondrial markers. Previous studies using mtDNA only have shown this region to hold a distinct evolutionary lineage. In addition, anthropogenic factors have led to a strong decline in West/Central African lion numbers, thus, the conservation value of these populations is particularly high. Here, we investigate whether autosomal markers are concordant with previously described phylogeographic patterns, and confirm the unique position of the West/Central African lion. Analysis of 20 microsatellites and 1,454 bp of the mitochondrial DNA in 16 lion populations representing the entire geographic range of the species found congruence in both types of markers, identifying four clusters: 1) West/Central Africa, 2) East Africa, 3) Southern Africa and 4) India. This is not in line with the current taxonomy, as defined by the IUCN, which only recognizes an African and an Asiatic subspecies. There are no indications that genetic diversity in West/Central Africa lions is lower than in either East or Southern Africa, however, given this genetic distinction and the recent declines of lion numbers in this region, we strongly recommend prioritization of conservation projects in West/Central Africa. As the current taxonomic nomenclature does not reflect the evolutionary history of the lion, we suggest that a taxonomic revision of the lion is warranted.

  4. Autosomal and mtDNA Markers Affirm the Distinctiveness of Lions in West and Central Africa.

    Directory of Open Access Journals (Sweden)

    Laura D Bertola

    Full Text Available The evolutionary history of a species is key for understanding the taxonomy and for the design of effective management strategies for species conservation. The knowledge about the phylogenetic position of the lion (Panthera leo in West/Central Africa is largely based on mitochondrial markers. Previous studies using mtDNA only have shown this region to hold a distinct evolutionary lineage. In addition, anthropogenic factors have led to a strong decline in West/Central African lion numbers, thus, the conservation value of these populations is particularly high. Here, we investigate whether autosomal markers are concordant with previously described phylogeographic patterns, and confirm the unique position of the West/Central African lion. Analysis of 20 microsatellites and 1,454 bp of the mitochondrial DNA in 16 lion populations representing the entire geographic range of the species found congruence in both types of markers, identifying four clusters: 1 West/Central Africa, 2 East Africa, 3 Southern Africa and 4 India. This is not in line with the current taxonomy, as defined by the IUCN, which only recognizes an African and an Asiatic subspecies. There are no indications that genetic diversity in West/Central Africa lions is lower than in either East or Southern Africa, however, given this genetic distinction and the recent declines of lion numbers in this region, we strongly recommend prioritization of conservation projects in West/Central Africa. As the current taxonomic nomenclature does not reflect the evolutionary history of the lion, we suggest that a taxonomic revision of the lion is warranted.

  5. Constraints on the crustal structure beneath the Sinai subplate, SE Mediterranean, from analysis of local and regional travel times

    Directory of Open Access Journals (Sweden)

    Mohamed K. Salah

    2013-03-01

    Full Text Available The Sinai Peninsula has been recognized as a subplate of the African Plate located at the triple junction of the Gulf of Suez rift, the Dead Sea Transform fault, and the Red Sea rift. The upper and lower crustal structures of this tectonically active, rapidly developing region are yet poorly understood because of many limitations. For this reason, a set of P- and S-wave travel times recorded at 14 seismic stations belonging to the Egyptian National Seismographic Network (ENSN from 111 local and regional events are analyzed to investigate the crustal structures and the locations of the seismogenic zones beneath central and southern Sinai. Because the velocity model used for routine earthquake location by ENSN is one-dimensional, the travel-time residuals will show lateral heterogeneity of the velocity structures and unmodeled vertical structures. Seismic activity is strong along the eastern and southern borders of the study area but low to moderate along the northern boundary and the Gulf of Suez to the west. The crustal Vp/Vs ratio is 1.74 from shallow (depth ≤ 10 km earthquakes and 1.76 from deeper (depth > 10 km crustal events. The majority of the regional and local travel-time residuals are positive relative to the Preliminary Reference Earth Model (PREM, implying that the seismic stations are located above widely distributed, tectonically-induced low-velocity zones. These low-velocity zones are mostly related to the local crustal faults affecting the sedimentary section and the basement complex as well as the rifting processes prevailing in the northern Red Sea region and the ascending of hot mantle materials along crustal fractures. The delineation of these low-velocity zones and the locations of big crustal earthquakes enable the identification of areas prone to intense seismotectonic activities, which should be excluded from major future development projects and large constructions in central and southern Sinai.

  6. Caribou, individual-based modeling and mega-industry in central West Greenland

    DEFF Research Database (Denmark)

    Raundrup, Katrine; Nymand, Josephine; Nabe-Nielsen, Jacob

    in West Greenland. In a newly started PhD-project the focus will be the implementation of spatially explicit individual based modeling (IBM). The project relies on existing knowledge on caribou behavior and feeding ecology along with data on variations in the vegetation. By relating vegetation, snow......Spatial distribution of caribou (Rangifer tarandus groenlandicus) in West Greenland is a result of both short and long term changes in the Arctic landscape. To understand present distribution 40 satellite collars were deployed on 40 female caribou in the Akia-Maniitsoq herd, central West Greenland...... in an area. Further, enhanced or lowered hunting pressure, and changed weather conditions can be studied using IBM. Thus, both short and long term changes in the landscape will be studied and provide insights in how the specific spatial changes impact caribou in West Greenland....

  7. Autosomal and mtDNA markers affirm the distinctiveness of lions in West and Central Africa

    NARCIS (Netherlands)

    Bertola, L.D.; Tensen, Laura; Hooft, Van Pim; White, P.A.; Driscoll, C.A.; Henschel, Philipp; Caragiulo, Anthony; Dias-Freedman, Isabela; Sogbohossou, E.A.; Tumenta, Pricelia N.; Jirmo, T.H.; Snoo, De G.R.; Iongh, De H.H.; Vrieling, Klaas

    2015-01-01

    The evolutionary history of a species is key for understanding the taxonomy and for the design of effective management strategies for species conservation. The knowledge about the phylogenetic position of the lion (Panthera leo) in West/Central Africa is largely based on mitochondrial markers.

  8. Autosomal and mtDNA Markers Affirm the Distinctiveness of Lions in West and Central Africa

    NARCIS (Netherlands)

    Bertola L.D., Tensen, L., Hooft P. van, White P.A., Driscoll C.A., Henschel P., Caragiulo A., Dias-Freedman I., Sogbohossou E.A., Tumenta P.M., Jirmo T.H., Snoo G.R. de, Iongh H.H. de, Vrieling K.

    2015-01-01

    The evolutionary history of a species is key for understanding the taxonomy and for the design of effective management strategies for species conservation. The knowledge about the phylogenetic position of the lion ( Panthera leo ) in West/Central Africa is largely based on mitochondrial markers.

  9. Astragalus kongrensis Benth. Ex Baker (Fabaceae, a New Record for Central and North-West Himalayas

    Directory of Open Access Journals (Sweden)

    Lal Babu Chaudhary

    2006-09-01

    Full Text Available Astragalus kongrensis Benth. Ex Baker is reported for the first time from Central (Nepal and North-West Himalayas (India. Earlier the species was known from East Himalaya (Sikkim-India, Bhutan and China. The description and illustrations of the species are provided.

  10. Cabira rangarajani n. sp. (Polychaeta: Pilargidae) from the Goa coast, central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Mandal, Sumit; Harkantra, S.N.; Salazar-Vallejo, S.I.

    Cabira rangarajani n. sp., is described from the Goa coast, in central west coast of India. It differs from C. brevicirris (Rangarajan, 1964), by having a single type of neurochaetae while the other species has three types. The new species also...

  11. Successful and unsuccessful attempts to resolve caribou management and timber harvesting issues in west central Alberta

    Directory of Open Access Journals (Sweden)

    David Hervieux

    1996-01-01

    Full Text Available Research studies of woodland caribou in west central Alberta began in 1979 in response to proposed timber harvesting on their winter ranges. Using results from initial studies, timber harvest guidelines were developed. A recent review of these guidelines, and the assumptions on which they were based, has resulted in a renegotiation by government and industry of timber harvesting on caribou range in west central Alberta. Caribou range in west central Alberta overlaps many jurisdictional boundaries: federal and provincial lands, four Forest Management Agreement Areas, three Alberta Land and Forest Service Regions and two Alberta Fish and Wildlife Service Regions. This jurisdictional complexity in combination with other factors such as total allocation of the timber resources, high levels of petroleum, natural gas and coal extraction activities, a high level of concern by public groups for caribou conservation and recent understanding of woodland caribou needs for abundant space has made resolution of caribou/timber harvest conflicts exceedingly slow and often relatively unproductive. This paper reviews 10 years of trying to resolve conflicts between timber harvesting and caribou conservation through meetings, committees, integrated resource planning, policy papers and public consultation. We describe what might be learned by other jurisdictions that are trying to resolve similar caribou/timber harvesting issues. We conclude with an overview of recent timber harvest planning initiatives on caribou range in west central Alberta.

  12. Decapod crustacean assemblages off the West coast of central Italy (western Mediterranean

    Directory of Open Access Journals (Sweden)

    Emanuela Fanelli

    2007-03-01

    Full Text Available Community structure and faunal composition of decapod crustaceans off the west coast of central Italy (western Mediterranean were investigated. Samples were collected during five trawl surveys carried out from June 1996 to June 2000 from 16 to 750 m depth. Multivariate analysis revealed the occurrence of five faunistic assemblages: 1 a strictly coastal community over sandy bottoms at depths

  13. Metal distribution in Halophila beccarii (Aschers) and sorrounding environment along the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Jagtap, T.G.

    Halophila beccarii (Aschers), the surrounding water and the sediments showed varying concentrations of Na, K, Ca, Mg, Fe, Mn, Cu, Ni, Sr and Li at different localities along central west coast of India. Iron was found to be maximum in both the plant...

  14. Herbaceous vegetation in thinned and defoliated forest stands in north central West Virginia

    Science.gov (United States)

    S. L. C. Fosbroke; D. Feicht; R. M. Muzika

    1995-01-01

    Herbaceous vegetation was inventoried in 1992 and 1993 in eight Appalachian mixed hardwood stands ( 50% basal area/acre in oak species) in north central West Virginia. Vegetation was sampled on 20 6-foot radius plots per stand twice each growing season (once during late spring to sample spring ephemeral...

  15. Assessment of coastal wetland resources of central west coast, India, using LANDSAT data

    Digital Repository Service at National Institute of Oceanography (India)

    Jagtap, T.G.; Naik, S.; Nagle, V.L.

    The part of central west coast (Maharashtra and Goa) of India has been classified and quantified for coastal wetlands using LANDSAT data of 1985-86. The classification accuracy of the maps and area estimates achieved was 84% at 90% confidence level...

  16. Timber resource statistics for non-Federal forest land in west-central Oregon.

    Science.gov (United States)

    Donald R. Gedney; Patricia M. Bassett; Mary A. Mei

    1987-01-01

    This report summarizes a 1985-86 timber resource inventory of the non-Federal forest land in the four counties (Benton, Lane, Lincoln, and Linn) in west-central Oregon. Detailed tables of forest area, timber volume, growth, mortality, and harvest are presented.

  17. Transit traverse in Missouri, 1900-1937. Part 8, West-central Missouri, 1906-37

    Science.gov (United States)

    Staack, John G.

    1940-01-01

    This bulletin, which for convenience is to be published in eight parts, contains the results of all transit traverse* done In Missouri through 1937 by the Geological Survey, United States Department of the Interior, including those heretofore published. (See page X.) Each of the parts deals with one of eight sections into which the State has been divided for this purpose and which have been designated northeastern, northwestern, southeastern, southwestern, central, east-central, south-central, and west-central Missouri. In each part descriptions of the points for which geodetic positions have been determined are listed according to the quadrangles in which the points occur. Results of transit traverse other than that done by the Geological Survey have not been included.West-central Missouri, as the term is used in this bulletin and as the subject of part 8 of the bulletin, is that section of the State lying between latitudes 38°00' and 39°30' and west of longitude 93°30'.

  18. Spatiotemporal dynamics of the HIV-1 subtype G epidemic in West and Central Africa.

    Science.gov (United States)

    Delatorre, Edson; Mir, Daiana; Bello, Gonzalo

    2014-01-01

    The human immunodeficiency virus type 1 (HIV-1) subtype G is the second most prevalent HIV-1 clade in West Africa, accounting for nearly 30% of infections in the region. There is no information about the spatiotemporal dynamics of dissemination of this HIV-1 clade in Africa. To this end, we analyzed a total of 305 HIV-1 subtype G pol sequences isolated from 11 different countries from West and Central Africa over a period of 20 years (1992 to 2011). Evolutionary, phylogeographic and demographic parameters were jointly estimated from sequence data using a Bayesian coalescent-based method. Our analyses indicate that subtype G most probably emerged in Central Africa in 1968 (1956-1976). From Central Africa, the virus was disseminated to West and West Central Africa at multiple times from the middle 1970s onwards. Two subtype G strains probably introduced into Nigeria and Togo between the middle and the late 1970s were disseminated locally and to neighboring countries, leading to the origin of two major western African clades (G WA-I and G WA-II). Subtype G clades circulating in western and central African regions displayed an initial phase of exponential growth followed by a decline in growth rate since the early/middle 1990 s; but the mean epidemic growth rate of G WA-I (0.75 year-1) and G WA-II (0.95 year-1) clades was about two times higher than that estimated for central African lineages (0.47 year-1). Notably, the overall evolutionary and demographic history of G WA-I and G WA-II clades was very similar to that estimated for the CRF06_cpx clade circulating in the same region. These results support the notion that the spatiotemporal dissemination dynamics of major HIV-1 clades circulating in western Africa have probably been shaped by the same ecological factors.

  19. Longshore sediment transport rate-measurement and estimation, central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    SanilKumar, V.; Anand, N.M.; Chandramohan, P.; Naik, G.N.

    rate—measurement and estimation, central west coast of India V. Sanil Kumar * , N.M. Anand, P. Chandramohan, G.N. Naik Ocean Engineering Division, National Institute of Oceanography, Donapaula, Goa 403 004, India Received 26 October 2001; received... engineering designs. The longshore current generated by obliquely incident breaking waves plays an important role in transporting sediment in the surf zone. The longshore current velocity varies across the surf zone, reaching a maximum value close to the wave...

  20. Genetic diversity, evolutionary history and implications for conservation of the lion (Panthera leo) in West and Central Africa

    NARCIS (Netherlands)

    Bertola, L.D.; Hooft, van W.F.; Vrieling, K.; Weerd, de D.R.U.; York, D.S.; Bauer, H.; Prins, H.H.T.; Funston, P.J.; Haes, de H.A.U.; Leirs, H.; Haeringen, van W.A.; Sogbohossou, E.; Tumenta, P.N.; Iongh, de H.H.

    2011-01-01

    Aim In recent decades there has been a marked decline in the numbers of African lions (Panthera leo), especially in West Africa where the species is regionally endangered. Based on the climatological history of western Africa, we hypothesize that West and Central African lions have a unique

  1. Geochemical mapping using stream sediments in west-central Nigeria: Implications for environmental studies and mineral exploration in West Africa

    International Nuclear Information System (INIS)

    Lapworth, Dan J.; Knights, Katherine V.; Key, Roger M.; Johnson, Christopher C.; Ayoade, Emmanuel; Adekanmi, Michael A.; Arisekola, Tunde M.; Okunlola, Olugbenga A.; Backman, Birgitta; Eklund, Mikael; Everett, Paul A.; Lister, Robert T.; Ridgway, John; Watts, Michael J.; Kemp, Simon J.; Pitfield, Peter E.J.

    2012-01-01

    This paper provides an overview of regional geochemical mapping using stream sediments from central and south-western Nigeria. A total of 1569 stream sediment samples were collected and 54 major and trace elements determined by ICP-MS and Au, Pd and Pt by fire assay. Multivariate statistical techniques (e.g., correlation analysis and principal factor analysis) were used to explore the data, following appropriate data transformation, to understand the data structure, investigate underlying processes controlling spatial geochemical variability and identify element associations. Major geochemical variations are controlled by source geology and provenance, as well as chemical weathering and winnowing processes, more subtle variations are a result of land use and contamination from anthropogenic activity. This work has identified placer deposits of potential economic importance for Au, REE, Ta, Nb, U and Pt, as well as other primary metal deposits. Areas of higher As and Cr (>2 mg/kg and >70 mg/kg respectively) are associated with Mesozoic and younger coastal sediments in SW Nigeria. High stream sediment Zr concentrations (mean >0.2%), from proximal zircons derived from weathering of basement rocks, have important implications for sample preparation and subsequent analysis due to interferences. Associated heavy minerals enriched in high field strength elements, and notably rare earths, may also have important implications for understanding magmatic processes within the basement terrain of West Africa. This study provides important new background/baseline geochemical values for common geological domains in Nigeria (which extend across other parts of West Africa) for assessment of contamination from urban/industrial land use changes and mining activities. Regional stream sediment mapping is also able to provide important new information with applications across a number of sectors including agriculture, health, land use and planning.

  2. Basement control in the development of the early cretaceous West and Central African rift system

    Science.gov (United States)

    Maurin, Jean-Christophe; Guiraud, René

    1993-12-01

    The structural framework of the Precambrian basement of the West and Central African Rift System (WCARS) is described in order to examine the role of ancient structures in the development of this Early Cretaceous rift system. Basement structures are represented in the region by large Pan-African mobile belts (built at ca. 600 Ma) surrounding the > 2 Ga West African, Congo and Sao Francisco cratons. Except for the small Gao trough (eastern Mali) located near the contact nappe of the Pan-African Iforas suture zone along the edge of the West African craton, the entire WCARS is located within the internal domains of the Pan-African mobile belts. Within these domains, two main structural features occur as the main basement control of the WCARS: (1) an extensive network of near vertical shear zones which trend north-south through the Congo, Brazil, Nigeria, Niger and Algeria, and roughly east-west through northeastern Brazil and Central Africa. The shear zones correspond to intra-continental strike-slip faults which accompanied the oblique collision between the West African, Congo, and Sao Francisco cratons during the Late Proterozoic; (2) a steep metamorphic NW-SE-trending belt which corresponds to a pre-Pan-African (ca. 730 Ma) ophiolitic suture zone along the eastern edge of the Trans-Saharian mobile belt. The post-Pan-African magmatic and tectonic evolution of the basement is also described in order to examine the state of the lithosphere prior to the break-up which occurred in the earliest Cretaceous. After the Pan-African thermo-tectonic event, the basement of the WCARS experienced a long period of intra-plate magmatic activity. This widespread magmatism in part relates to the activity of intra-plate hotspots which have controlled relative uplift, subsidence and occasionally block faulting. During the Paleozoic and the early Mesozoic, this tectonic activity was restricted to west of the Hoggar, west of Aïr and northern Cameroon. During the Late Jurassic

  3. Distribution of knock-down resistance mutations in Anopheles gambiae molecular forms in west and west-central Africa

    Directory of Open Access Journals (Sweden)

    Caccone Adalgisa

    2008-04-01

    Full Text Available Abstract Background Knock-down resistance (kdr to DDT and pyrethroids in the major Afrotropical vector species, Anopheles gambiae sensu stricto, is associated with two alternative point mutations at amino acid position 1014 of the voltage-gated sodium channel gene, resulting in either a leucine-phenylalanine (L1014F, or a leucine-serine (L1014S substitution. In An. gambiae S-form populations, the former mutation appears to be widespread in west Africa and has been recently reported from Uganda, while the latter, originally recorded in Kenya, has been recently found in Gabon, Cameroon and Equatorial Guinea. In M-form populations surveyed to date, only the L1014F mutation has been found, although less widespread and at lower frequencies than in sympatric S-form populations. Methods Anopheles gambiae M- and S-form specimens from 19 sites from 11 west and west-central African countries were identified to molecular form and genotyped at the kdr locus either by Hot Oligonucleotide Ligation Assay (HOLA or allele-specific PCR (AS-PCR. Results The kdr genotype was determined for about 1,000 An. gambiae specimens. The L1014F allele was found at frequencies ranging from 6% to 100% in all S-form samples (N = 628, with the exception of two samples from Angola, where it was absent, and coexisted with the L1014S allele in samples from Cameroon, Gabon and north-western Angola. The L1014F allele was present in M-form samples (N = 354 from Benin, Nigeria, and Cameroon, where both M- and S-forms were sympatric. Conclusion The results represent the most comprehensive effort to analyse the overall distribution of the L1014F and L1014S mutations in An. gambiae molecular forms, and will serve as baseline data for resistance monitoring. The overall picture shows that the emergence and spread of kdr alleles in An. gambiae is a dynamic process and that there is marked intra- and inter-form heterogeneity in resistance allele frequencies. Further studies are needed to

  4. Hepatitis E virus IgG seroprevalence in HIV patients and blood donors, west-central Poland

    Directory of Open Access Journals (Sweden)

    Maciej Bura

    2017-08-01

    Conclusions: Wielkopolska Region in west-central Poland is an area hyperendemic for HEV infection. In this part of Poland, the exposure of HIV-positive persons to this virus is not greater than that of healthy blood donors.

  5. Analysis of magnetic anomalies in relation to Placer deposits and basement configuration off Mirya bay, Central West coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Ramana, M.V.

    The offshore ilmenite placers off Konkan, central west coast of India, have been surveyed by echosounding, shallow seismic profiling, magnetics, and seabed sampling. The magnetic data show two different types of anomalies: (1) N-S trending high...

  6. A new distributional record of alligator pipefish, Syngnathoides biaculeatus (Bloch, 1785) along Goa, central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Sanaye, S.V.; Rivonker, C.U.; Ansari, Z.A; Sreepada, R.A

    Present study is based on a single male specimen of alligator pipefish, Syngnathoides biaculeatus (Bloch, 1785) collected from the bay-estuarine system of, Goa (central west coast of India) which is the new distributional record for this species. A...

  7. Geologic history and hydrogeologic setting of the Edwards-Trinity aquifer system, west-central Texas

    Science.gov (United States)

    Barker, R.A.; Bush, P.W.; Baker, E.T.

    1994-01-01

    The Edwards-Trinity aquifer system underlies about 42,000 square miles of west-central Texas. Nearly flat-lying, mostly Comanche (Lower Cretaceous) strata of the aquifer system thin northwestward atop massive pre-Cretaceous rocks that are comparatively impermeable and structurally complex. From predominately terrigenous clastic sediments in the east and fluvialdeltaic (terrestrial) deposits in the west, the rocks of early Trinitian age grade upward into supratidal evaporitic and dolomitic strata, intertidal limestone and dolostone, and shallow-marine, openshelf, and reefal strata of late Trinitian, Fredericksburgian, and Washitan age. A thick, downfaulted remnant of mostly open-marine strata of Eaglefordian through Navarroan age composes a small, southeastern part of the aquifer system.

  8. Upslope deposition of extremely distal turbidites: An example from the Tiburon Rise, west-central Atlantic

    Science.gov (United States)

    Dolan, James; Beck, Christian; Ogawa, Yujiro

    1989-11-01

    Terrigenous silt and sand turbidites recovered from the crest of the Tiburon Rise in the west-central Atlantic represent an unprecedented example of upslope turbidite deposition in an extremely distal setting. These Eocene-Oligocene beds, which were derived from South America more than 1000 km to the southeast, were probably deposited by extremely thick (>1500 m) turbidity currents that flowed parallel to the southern margin of the rise. We suggest that flow thickness was the dominant control on deposition of these beds, rather than true upslope flow. This interpretation points out the importance of local bathymetry on the behavior of even extremely distal turbidity currents.

  9. Novel flavivirus or new lineage of West Nile Virus, central Europe

    Czech Academy of Sciences Publication Activity Database

    Bakonyi, T.; Hubálek, Zdeněk; Rudolf, Ivo; Nowotny, N.

    2005-01-01

    Roč. 11, č. 2 (2005), s. 225-231 ISSN 1080-6040. [International Conference on Emerging Infectious Diseases . Al Ain, 26.02.2005-01.03.2005] R&D Projects: GA ČR(CZ) GA206/03/0726 Institutional research plan: CEZ:AV0Z60930519 Keywords : epidemiology * West Nile virus * Central Europe Subject RIV: FN - Epidemiology, Contagious Diseases ; Clinical Immunology Impact factor: 5.308, year: 2005 http://www.cdc.gov/ncidod/EID/vol11no02/04-1028.htm

  10. Regional gravity and magnetic studies over the continental margin of the Central West Coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    SubbaRaju, L.V.; KameshRaju, K.A.; Subrahmanyam, V.; Rao, D.G.

    Institute of Oceanography, Dona Paula, Goa 403 004, India Abstract Gravity studies over the continental margin of the central west coast of India show a sediment thickness of 2-3 km on the shelf associated with deeper hoest and graben structures, of 6 km... sequence ranges from Palaeocene to Recent. Stratigraphy as obtained from the explor atory wells BH-I, DCS-IA, HI2-1, and R6-110cated in the Bombay offshore basin is shown in Figure 2. Figure 3 depicts the seismogeological section of the Bombay offshore...

  11. Mortality of vertebrates in irrigation canals in an area of west-central Spain

    Directory of Open Access Journals (Sweden)

    P. Garcia

    2009-01-01

    Full Text Available Mortality patterns of vertebrates in irrigation canals have been poorly studied despite their potential impact on wildlife. Concrete irrigation canals in a cropland area in west-central Spain were monitored over 13 months to assess their impact on small fauna. A total of 134 vertebrates were found dead. Most were amphibians (86.46% or mammals (20.90%, though fishes, reptiles and a bird were also recorded. Mortality peaked in autumn months. Corrective measurements are needed to reduce this cause of non-natural mortality.

  12. Potentiometric Surface of the Upper Floridan Aquifer, West-Central Florida, May 2006

    Science.gov (United States)

    Ortiz, A.G.

    2007-01-01

    Introduction Hydrologic Conditions in West-Central Florida The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The water-bearing units containing fresh water are herein referred to as the Upper Floridan aquifer. The Upper Floridan aquifer is the principal source of water in the Southwest Florida Water Management District and is used for major public supply, domestic use, irrigation, and brackish water desalination in coastal communities (Southwest Florida Water Management District, 2000). This map report shows the potentiometric surface of the Upper Floridan aquifer measured in May 2006. The potentiometric surface is an imaginary surface connecting points of equal altitude to which water will rise in tightly-cased wells that tap a confined aquifer system (Lohman, 1979). This map represents water-level conditions near the end of the dry season, when ground-water levels usually are at an annual low and withdrawals for agricultural use typically are high. The cumulative average rainfall of 50.23 inches for west-central Florida (from June 2005 through May 2006) was 2.82 inches below the historical cumulative average of 53.05 inches (Southwest Florida Water Management District, 2006). Historical cumulative averages are calculated from regional rainfall summary reports (1915 to most recent complete calendar year) and are updated monthly by the Southwest Florida Water Management District. This report, prepared by the U.S. Geological Survey in cooperation with the Southwest Florida Water Management District, is part of a semi-annual series of Upper Floridan aquifer potentiometric-surface map reports for west-central Florida. Potentiometric-surface maps have been prepared for January 1964, May 1969, May 1971, May 1973, May 1974, and for each May and September since 1975. Water

  13. Anthropogenic influence on recent bathymetric change in west-central San Francisco Bay

    Science.gov (United States)

    Barnard, Patrick L.; Kvitek, Rikk G.

    2010-01-01

    Two multibeam sonar surveys of west-central San Francisco Bay, California, were conducted in 1997 and 2008. Bathymetric change analysis between the two surveys indicates a loss of 14.1 million cubic meters (-3.1 cm/yr-1) of sediment during this time period, representing an approximately three-fold acceleration of the rate that was observed from prior depth change analysis from 1947 to 1979 for all of Central Bay, using more spatially coarse National Ocean Service (NOS) soundings. The portions of the overlapping survey areas between 1997 and 2008 designated as aggregate mining lease sites lost sediment at five times the rate of the remainder of west-central San Francisco Bay. Despite covering only 28% of the analysis area, volume change within leasing areas accounted for 9.2 million cubic meters of sediment loss, while the rest of the area lost 4.9 million cubic meters of sediment. The uncertainty of this recent analysis is more tightly constrained due to more stringent controls on vertical and horizontal position via tightly coupled, inertially aided differential Global Positioning Systems (GPS) solutions for survey vessel trajectory that virtually eliminate inaccuracies from traditional tide modeling and vessel motion artifacts. Further, quantification of systematic depth measurement error can now be calculated through comparison of static surfaces (e.g., bedrock) between surveys using seafloor habitat maps based on acoustic backscatter measurements and ground-truthing with grab samples and underwater video. Sediment loss in the entire San Francisco Bay Coastal System during the last half-century,as estimated from a series of bathymetric change studies, is 240 million cubic meters, and most of this is believed to be coarse sediment (i.e., sand and gravel) from Central Bay and the San Francisco Bar, which is likely to limit the sand supply to adjacent, open-coast beaches. This hypothesis is supported by a calibrated numerical model in a related study that indicates

  14. IAU South West and Central Asian Regional Office of Astronomy for Development

    Science.gov (United States)

    Mickaelian, A. M.; Hakopian, S. A.; Farmanyan, S. V.; Mikayelyan, G. A.

    2017-12-01

    The International Astronomical Union (IAU) announced its Strategic Plan on Astronomy for Development in 2009, during the International Year of Astronomy (IYA). One of its main components was the creation of the Office of Astronomy for Development (OAD) and corresponding Regional Offices (ROADs) for implementation and coordination of its aims. The OAD was created in Cape Town, South Africa and later on ROADs were created in 8 regions. Since 2015, Armenia hosts one of them, IAU South West Asian (SWA), later renamed to South West and Central Asian (SWCA) ROAD. At present, already 6 countries have officially joined (Armenia, Georgia, Iran, Kazakhstan, Tajikistan, and Turkey), but the Office serves for a rather broad region, from Eastern Europe to Central Asia. Armenia's geographical location and its historical role in astronomy (both for well-known archaeoastronomical heritage and the presence of the famous Byurakan Astrophysical Observatory (BAO) founded by Viktor Ambartsumian in 1946) serve as a link between Europe and Eastern Partnership countries, Middle East and Asia in general. We run activities in 3 directions, Task Forces (TF): TF1 Universities and Research, TF2 Children and Schools and TF3 Public Outreach. We present our projects and all other accomplishments and discuss the role of our ROAD in maintaining contacts and development of astronomy in the region, as well as contacts between Europe and the Eastern Partnership countries. Most up-to-date information about the IAU SWCA ROAD is available on its webpage at http://iau-swa-road.aras.am/eng/index.php.

  15. Ocean climate data for user community in West and Central Africa: Needs, opportunities, and challenges

    Science.gov (United States)

    Ojo, S. O.

    1992-01-01

    The urgent need to improve data delivery systems needed by scientists studying ocean role in climate and climate characteristics has been manifested in recent years because of the unprecedented climatic events experienced in many parts of the world. Indeed, there has been a striking and growing realization by governments and the general public indicating that national economies and human welfare depend on climate and its variability. In West and Central Africa, for instance climatic events, which have resulted in floods and droughts, have caused a lot of concern to both governments and people of the region. In particular, the droughts have been so widespread that greater awareness and concern have become generated for the need to find solutions to the problems created by the consequences of the climatic events. Particularly in the southern border regions of the Sahara Desert as well as in the Sahel region, the drought episodes considerably reduced food production and led to series of socioeconomic problems, not only in the areas affected by the droughts, but also in the other parts of West Africa. The various climatic variabilities which have caused the climatic events are no doubt related to the ocean-atmosphere interactions. Unfortunately, not much has been done on the understanding of these interactions, particularly as they affect developing countries. Indeed, not much has been done to develop programs which will reflect the general concerns and needs for researching into the ocean-atmosphere systems and their implications on man-environmental systems in many developing countries. This is for example, true of West and Central Africa, where compared with the middle latitude countries, much less is known about the characteristics of the ocean-atmosphere systems and their significance on man-environmental systems of the area.

  16. Tracing the origin of the east-west population admixture in the Altai region (Central Asia.

    Directory of Open Access Journals (Sweden)

    Mercedes González-Ruiz

    Full Text Available A recent discovery of Iron Age burials (Pazyryk culture in the Altai Mountains of Mongolia may shed light on the mode and tempo of the generation of the current genetic east-west population admixture in Central Asia. Studies on ancient mitochondrial DNA of this region suggest that the Altai Mountains played the role of a geographical barrier between West and East Eurasian lineages until the beginning of the Iron Age. After the 7th century BC, coinciding with Scythian expansion across the Eurasian steppes, a gradual influx of East Eurasian sequences in Western steppes is detected. However, the underlying events behind the genetic admixture in Altai during the Iron Age are still unresolved: 1 whether it was a result of migratory events (eastward firstly, westward secondly, or 2 whether it was a result of a local demographic expansion in a 'contact zone' between European and East Asian people. In the present work, we analyzed the mitochondrial DNA lineages in human remains from Bronze and Iron Age burials of Mongolian Altai. Here we present support to the hypothesis that the gene pool of Iron Age inhabitants of Mongolian Altai was similar to that of western Iron Age Altaians (Russia and Kazakhstan. Thus, this people not only shared the same culture (Pazyryk, but also shared the same genetic east-west population admixture. In turn, Pazyryks appear to have a similar gene pool that current Altaians. Our results further show that Iron Age Altaians displayed mitochondrial lineages already present around Altai region before the Iron Age. This would provide support for a demographic expansion of local people of Altai instead of westward or eastward migratory events, as the demographic event behind the high population genetic admixture and diversity in Central Asia.

  17. Tracing the origin of the east-west population admixture in the Altai region (Central Asia).

    Science.gov (United States)

    González-Ruiz, Mercedes; Santos, Cristina; Jordana, Xavier; Simón, Marc; Lalueza-Fox, Carles; Gigli, Elena; Aluja, Maria Pilar; Malgosa, Assumpció

    2012-01-01

    A recent discovery of Iron Age burials (Pazyryk culture) in the Altai Mountains of Mongolia may shed light on the mode and tempo of the generation of the current genetic east-west population admixture in Central Asia. Studies on ancient mitochondrial DNA of this region suggest that the Altai Mountains played the role of a geographical barrier between West and East Eurasian lineages until the beginning of the Iron Age. After the 7th century BC, coinciding with Scythian expansion across the Eurasian steppes, a gradual influx of East Eurasian sequences in Western steppes is detected. However, the underlying events behind the genetic admixture in Altai during the Iron Age are still unresolved: 1) whether it was a result of migratory events (eastward firstly, westward secondly), or 2) whether it was a result of a local demographic expansion in a 'contact zone' between European and East Asian people. In the present work, we analyzed the mitochondrial DNA lineages in human remains from Bronze and Iron Age burials of Mongolian Altai. Here we present support to the hypothesis that the gene pool of Iron Age inhabitants of Mongolian Altai was similar to that of western Iron Age Altaians (Russia and Kazakhstan). Thus, this people not only shared the same culture (Pazyryk), but also shared the same genetic east-west population admixture. In turn, Pazyryks appear to have a similar gene pool that current Altaians. Our results further show that Iron Age Altaians displayed mitochondrial lineages already present around Altai region before the Iron Age. This would provide support for a demographic expansion of local people of Altai instead of westward or eastward migratory events, as the demographic event behind the high population genetic admixture and diversity in Central Asia.

  18. isotopic characteristics of aquifers in sinai

    International Nuclear Information System (INIS)

    Al-Gamal, S.A.

    2004-01-01

    the environmental isotopes data (expressed as δ 2 d and δ 18 O) of different aquifers in sinai were treated using correlation and regression techniques. whereas, rain water isotopic data were treated using empirical orthogonal functions (EOF) techniques. environmental isotopes for different aquifers expressed in terms of O-18 and H-2, were taken to represent the isotopic characteristics. regression equations using the highly correlated variables of δ 2 d and δ 18 O were constructed for each aquifer. the latitudinal variations (of rainwater in sinai and selected climatic stations east mediterranean ) versus rainwater isotopic compositions were analyzed using the normalized variables. it was found that the latitudinal variations of the rainwater isotopic compositions ( δ 2 D, δ 18 O), vapor pressure, and surface temperature occurred in parallel and decreased with latitude. in the east mediterranean, empirical linear relationship between altitude and δ 2 D has indicted that the rate of change of δ 2 D with height is comparable with the dry lapse rate in the atmosphere.The obtained regression equations of environmental isotopes data have impacted on different slopes and different constants expressing the non-homogeneity in the isotopic composition of rainwater recharging the aquifers of sinai , due to the presence of different air masses

  19. Potentiometric Surface of the Upper Floridan Aquifer, West-Central Florida, September 2006

    Science.gov (United States)

    Ortiz, A.G.

    2007-01-01

    The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The water-bearing units containing freshwater are herein referred to as the Upper Floridan aquifer. The Upper Floridan aquifer is the principal source of water in the Southwest Florida Water Management District and is used for major public supply, domestic use, irrigation, and brackish water desalination in coastal communities (Southwest Florida Water Management District, 2000). This map report shows the potentiometric surface of the Upper Floridan aquifer measured in September 2006. The potentiometric surface is an imaginary surface connecting points of equal altitude to which water will rise in tightly cased wells that tap a confined aquifer system (Lohman, 1979). This map represents water-level conditions near the end of the wet season, when ground-water levels usually are at an annual high and withdrawals for agricultural use typically are low. The cumulative average rainfall of 46.06 inches for west-central Florida (from October 2005 through September 2006) was 6.91 inches below the historical cumulative average of 52.97 inches (Southwest Florida Water Management District, 2006). Historical cumulative averages are calculated from regional rainfall summary reports (1915 to most recent complete calendar year) and are updated monthly by the Southwest Florida Water Management District. This report, prepared by the U.S. Geological Survey in cooperation with the Southwest Florida Water Management District, is part of a semi-annual series of Upper Floridan aquifer potentiometric-surface map reports for west-central Florida. Potentiometric-surface maps have been prepared for January 1964, May 1969, May 1971, May 1973, May 1974, and for each May and September since 1975. Water-level data are collected in May and September each

  20. Potentiometric Surface of the Upper Floridan Aquifer, West-Central Florida, September 2007

    Science.gov (United States)

    Ortiz, A.G.

    2008-01-01

    The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The water-bearing units containing fresh water are herein referred to as the Upper Floridan aquifer. The Upper Floridan aquifer is the principal source of water in the Southwest Florida Water Management District and is used for major public supply, domestic use, irrigation, and brackish water desalination in coastal communities (Southwest Florida Water Management District, 2000). This map report shows the potentiometric surface of the Upper Floridan aquifer measured in September 2007. The potentiometric surface is an imaginary surface connecting points of equal altitude to which water will rise in tightly-cased wells that tap a confined aquifer system (Lohman, 1979). This map represents water-level conditions near the end of the wet season, when ground-water levels usually are at an annual high and withdrawals for agricultural use typically are low. The cumulative average rainfall of 39.50 inches for west-central Florida (from October 2006 through September 2007) was 13.42 inches below the historical cumulative average of 52.92 inches (Southwest Florida Water Management District, 2007). Historical cumulative averages are calculated from regional rainfall summary reports (1915 to most recent complete calendar year) and are updated monthly by the Southwest Florida Water Management District. This report, prepared by the U.S. Geological Survey in cooperation with the Southwest Florida Water Management District, is part of a semi-annual series of Upper Floridan aquifer potentiometric-surface map reports for west-central Florida. Potentiometric-surface maps have been prepared for January 1964, May 1969, May 1971, May 1973, May 1974, and for each May and September since 1975. Water-level data are collected in May and September each

  1. Potentiometric surface of the Upper Floridan aquifer, west-central Florida, September 2005

    Science.gov (United States)

    Ortiz, A.G.

    2006-01-01

    The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The water-bearing units containing freshwater are herein referred to as the Upper Floridan aquifer. The Upper Floridan aquifer is the principal source of water in the Southwest Florida Water Management District and is used for major public-supply, domestic use, irrigation, and brackish-water desalination in coastal communities (Southwest Florida Water Management District, 2000).This map report shows the potentiometric surface of the Upper Floridan aquifer measured in September 2005. The potentiometric surface is an imaginary surface, connecting points of equal altitude to which water will rise in tightly cased wells that tap a confined aquifer system (Lohman, 1979). This map represents water-level conditions near the end of the wet season, when ground-water levels usually are at an annual high and withdrawals for agricultural use typically are low. The cumulative average rainfall of 55.19 inches for west-central Florida (from October 2004 through September 2005) was 2.00 inches above the historical cumulative average of 53.19 inches (Southwest Florida Water Management District, 2005). Historical cumulative averages are calculated from regional rainfall summary reports (1915 to most recent complete calendar year) and are updated monthly by the Southwest Florida Water Management District.This report, prepared by the U.S. Geological Survey in cooperation with the Southwest Florida Water Management District, is part of a semi-annual series of Upper Floridan aquifer potentiometric-surface map reports for west-central Florida. Potentiometric-surface maps have been prepared for January 1964, May 1969, May 1971, May 1973, May 1974, and for each May and September since 1975. Water-level data are collected in May and September each year

  2. Potentiometric Surface of the Upper Floridan Aquifer, West-Central Florida, May 2007

    Science.gov (United States)

    Ortiz, A.G.

    2008-01-01

    The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The water-bearing units containing fresh water are herein referred to as the Upper Floridan aquifer. The Upper Floridan aquifer is the principal source of water in the Southwest Florida Water Management District and is used for major public supply, domestic use, irrigation, and brackish water desalination in coastal communities (Southwest Florida Water Management District, 2000). This map report shows the potentiometric surface of the Upper Floridan aquifer measured in May 2007. The potentiometric surface is an imaginary surface connecting points of equal altitude to which water will rise in tightly-cased wells that tap a confined aquifer system (Lohman, 1979). This map represents water-level conditions near the end of the dry season, when ground-water levels usually are at an annual low and withdrawals for agricultural use typically are high. The cumulative average rainfall of 41.21 inches for west-central Florida (from June 2006 through May 2007) was 11.63 inches below the historical cumulative average of 52.84 inches (Southwest Florida Water Management District, 2007). Historical cumulative averages are calculated from regional rainfall summary reports (1915 to most recent complete calendar year) and are updated monthly by the Southwest Florida Water Management District. This report, prepared by the U.S. Geological Survey in cooperation with the Southwest Florida Water Management District, is part of a semi-annual series of Upper Floridan aquifer potentiometric-surface map reports for west-central Florida. Potentiometric-surface maps have been prepared for January 1964, May 1969, May 1971, May 1973, May 1974, and for each May and September since 1975. Water-level data are collected in May and September each year to show the

  3. Potentiometric surface of the upper Floridan aquifer, west-central Florida, May 2011

    Science.gov (United States)

    Ortiz, Anita G.

    2011-01-01

    The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The water-bearing units containing freshwater are herein referred to as the Upper Floridan aquifer. The Upper Floridan aquifer is the principal source of water in the Southwest Florida Water Management District and is used for major public supply, domestic use, irrigation, and brackish water desalination in coastal communities (Southwest Florida Water Management District, 2000). This map report shows the potentiometric surface of the Upper Floridan aquifer measured in May 2011. The potentiometric surface is an imaginary surface connecting points of equal altitude to which water will rise in tightly-cased wells that tap a confined aquifer system (Lohman, 1979). This map represents water-level conditions near the end of the dry season, when groundwater levels usually are at an annual low and withdrawals for agricultural use typically are high. The cumulative average rainfall of 45.74 inches for west-central Florida (from June 2010 through May 2011) was 6.85 inches below the historical cumulative average of 52.59 inches (Southwest Florida Water Management District, 2011). Historical cumulative averages are calculated from regional rainfall summary reports (1915 to most recent complete calendar year) and are updated monthly by the Southwest Florida Water Management District. This report, prepared by the U.S. Geological Survey in cooperation with the Southwest Florida Water Management District, is part of a semi-annual series of Upper Floridan aquifer potentiometric-surface map reports for west-central Florida. Potentiometric-surface maps have been prepared for January 1964, May 1969, May 1971, May 1973, May 1974, and for each May and September from 1975 through 2010. Water-level data are collected in May and September each year to

  4. Genetic and stratigraphic significance of the Upper Devonian Frasnian Z Marker, west-central Alberta

    Energy Technology Data Exchange (ETDEWEB)

    Wendte, J. [Geological Survey of Canada, Calgary, AB (Canada); Stoakes, F. [Stoakes Consulting Group Ltd., Calgary, AB (Canada); Bosman, M. [Canadian Hunter Exploration Ltd., Calgary, AB (Canada); Bernstein, L. [Talisman Energy Inc., Calgary, AB (Canada)

    1995-12-01

    The stratigraphic model from the west-central Alberta basin was provided. It defined the Z Marker as a distinctive and widespread wireline log marker within the thick Frasnian Ireton shale basin succession. The marker represents an interval of condensed sedimentation and corresponds to an abrupt change from a calcareous signature below to an argillaceous character above. Toward the shelf, in the West Pembina area, the Z Marker correlates to a level within a conformable succession of nodular lime wackestones and corresponds to the base of a depositional cycle near the middle of the Lobstick member of the Nisku Formation. Further shelfward, the Z Marker continues as a well-defined log marker until the Nisku shelf margin. The stratigraphic significance of the Z Marker in delineating various oil bearing formations in Alberta were explained in great detail. The correct recognition and correlation of this marker was claimed to permit an understanding of basin evolution beyond that discernable from the existing lithostratigraphic nomenclature alone. 17 refs., 13 figs.

  5. Radiological re-survey results at 130 West Central Avenue, Maywood, New Jersey (MJ029)

    International Nuclear Information System (INIS)

    Murray, M.E.; Johnson, C.A.

    1994-01-01

    Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from 1916 to 1959. During the early years of operation, MCW stored wastes and residues in low-lying areas west of the processing facilities and consequently some of the residuals containing radioactive materials migrated offsite to the surrounding area. Subsequently, the U.S. Department of Energy (DOE), designated for remedial action the old MCW property and several vicinity properties. Additionally, in 1984, the property at 130 West Central Ave., Maywood, New Jersey and properties in its vicinity were included as a decontamination research and development project under the DOE Formerly Utilized Sites Remedial Action Program. In 1987 and 1988, at the request of DOE, ORNL conducted a radiological survey on this property. A second radiological survey by ORNL was conducted on this property in May, 1993 at the request of DOE after an ad hoc radiological survey, requested by a new property owner and conducted by Bechtel National, Inc. (BNI), identified some contamination not previously found by ORNL. The purpose of the survey was to determine if residuals from the old MCW were present on the property, and if so, if any radiological elements present were above guidelines. A certified civil survey was requisitioned by ORNL to determine actual property boundaries before beginning the radiological survey. The radiological re-survey included a surface gamma scan and the collection of a large number of soil samples for radionuclide analyses

  6. Concentrations of Heavy Metals in Commercially Important Oysters from Goa, Central-West Coast of India.

    Science.gov (United States)

    Shenai-Tirodkar, Prachi S; Gauns, Mangesh U; Ansari, Zakir A

    2016-12-01

    The major beds of oyster along the central-west coast of India are exposed to different anthropogenic activities and are severely exploited for human consumption. In this viewpoint, tissues of oyster Crassostrea madrasensis, C. gryphoides and Saccostrea cucullata were analyzed for Cu, Ni, Cd and Pb concentrations (dry weight) from Chicalim Bay, Nerul Creek and Chapora Bay in pre-monsoon, monsoon and post-monsoon seasons. A higher concentration of Cu (134.4-2167.9 mg kg -1 ) and Cd (7.1-88.5 mg kg -1 ) was found, which is greater than the recommended limits in all the three species (and sites). Moreover, significant (p metals concentrations among the species, seasons and sites. The high concentrations of Cd and Cu in tissues of edible oyster pose a threat to human health. Therefore, continuous monitoring, people awareness and a stringent government policy should be implemented to mitigate the metal pollution along the studied sites.

  7. Recharge estimation in semi-arid karst catchments: Central West Bank, Palestine

    Science.gov (United States)

    Jebreen, Hassan; Wohnlich, Stefan; Wisotzky, Frank; Banning, Andre; Niedermayr, Andrea; Ghanem, Marwan

    2018-03-01

    Knowledge of groundwater recharge constitutes a valuable tool for sustainable management in karst systems. In this respect, a quantitative evaluation of groundwater recharge can be considered a pre-requisite for the optimal operation of groundwater resources systems, particular for semi-arid areas. This paper demonstrates the processes affecting recharge in Palestine aquifers. The Central Western Catchment is one of the main water supply sources in the West Bank. Quantification of potential recharge rates are estimated using chloride mass balance (CMB) and empirical recharge equations over the catchment. The results showing the spatialized recharge rate, which ranges from 111-216 mm/year, representing 19-37% of the long-term mean annual rainfall. Using Water Balance models and climatological data (e. g. solar radiation, monthly temperature, average monthly relative humidity and precipitation), actual evapotranspiration (AET) is estimated. The mean annual actual evapotranspiration was about 66-70% of precipitation.

  8. Physical characteristics of stream subbasins in the Pomme de Terre River Basin, west-central Minnesota

    Science.gov (United States)

    Lorenz, D.L.; Payne, G.A.

    1994-01-01

    Data describing the physical characteristics of stream subbasins upstream from selected points on streams in the Pomme de Terre River Basin, located in west-central Minnesota, are presented in this report. The physical characteristics are the drainage area of the subbasin, the percentage area of the subbasin covered only by lakes, the percentage area of the subbasin covered by both lakes and wetlands, the main-channel length, and the main-channel slope. The points on the stream include outlets of subbasins of at least 5 square miles, outfalls of sewage treatment plants, and locations of U.S. Geological Survey low-flow, high-flow, and continuous-record gaging stations.

  9. Prevalence of hepatitis C virus infection among recyclable waste collectors in Central-West Brazil.

    Science.gov (United States)

    Marinho, Thaís Augusto; Lopes, Carmen Luci Rodrigues; Teles, Sheila Araújo; Reis, Nádia Rúbia Silva; Carneiro, Megmar Aparecida dos Santos; de Andrade, Andreia Alves; Martins, Regina Maria Bringel

    2013-06-01

    The prevalence of hepatitis C virus (HCV) in a population of recyclable waste collectors (n = 431) was assessed using a cross-sectional survey in all 15 cooperatives in the city of Goiânia, Central-West Brazil. The HCV prevalence was 1.6% (95% confidence interval: 0.6-3.6) and a history of sexually transmitted infections was independently associated with this infection. HCV RNA (corresponding to genotype 1; subtypes 1a and 1b) was detected in five/seven anti-HCV-positive samples. Although the study population reported a high rate (47.3%) of sharps and needle accidents, HCV infection was not more frequent in recyclable waste collectors than in the general Brazilian population.

  10. Results of the radiological survey at 136 West Central Avenue (MJ030), Maywood, New Jersey

    International Nuclear Information System (INIS)

    Foley, R.D.; Crutcher, J.W.; Carrier, R.F.; Floyd, L.M.

    1989-02-01

    As a result of the Energy and Water Appropriations Act of Fiscal Year 1984, the property discussed in this report and properties in its vicinity contaminated with residues from the former Maywood Chemical Works (MCW) were included as a decontamination research and development project under the DOE Formerly Utilized Sites Remedial Action Program. As part of this project, DOE is conducting radiological surveys in the vicinity of the site to identify properties contaminated with residues derived from the MCW. The principal radionuclide of concern is thorium-232. The radiological survey discussed in this report is part of that effort and was conducted, at the request of DOE by members of the Measurement Applications and Development Group of Oak Ridge National Laboratory. A radiological survey of the private, residential property at 136 West Central Avenue, Maywood, New Jersey, was conducted during 1987. The survey and sampling of the ground surface and subsurface were carried out on April 29, 1987

  11. Compliance with the guidelines of prescription writing in a central hospital in the West Bank.

    Science.gov (United States)

    Tayem, Y I; Ibrahim, M A; Qubaja, M M; Shraim, R K; Taha, O B; Abu Shkhedem, E

    2013-09-01

    This retrospective, cross-sectional study was carried out to evaluate the quality of 2208 outpatient prescriptions in a central hospital in the West Bank, Palestine. The physicians' handwriting was poorly readable or illegible in one-third of the prescriptions. The prescriber's name and signature and patient's name were mentioned in almost all orders whereas the patient's age was stated in 54.9%. The vast majority of physicians (95.5%) prescribed drugs using their trade (brand) names. Drug strength, quantity and dose/frequency were stated in 61.1%, 76% and 73.8% of prescriptions respectively. Only 33 prescriptions (1.5%) contained full directions for use for all drugs. Correlation analysis revealed that the presence of certain prescription elements was statistically significantly associated with the clinic of origin and the number of drugs prescribed. The overall poor legibility and incompleteness of the prescriptions is of concern.

  12. Geologic map of the west-central Buffalo National River region, northern Arkansas

    Science.gov (United States)

    Hudson, Mark R.; Turner, Kenzie J.

    2014-01-01

    This map summarizes the geology of the west-central Buffalo National River region in the Ozark Plateaus region of northern Arkansas. Geologically, the region lies on the southern flank of the Ozark dome, an uplift that exposes oldest rocks at its center in Missouri. Physiographically, the map area spans the Springfield Plateau, a topographic surface generally held up by Mississippian cherty limestone and the higher Boston Mountains to the south, held up by Pennsylvanian rocks. The Buffalo River flows eastward through the map area, enhancing bedrock erosion of an approximately 1,600-ft- (490-m-) thick sequence of Ordovician, Mississippian, and Pennsylvanian carbonate and clastic sedimentary rocks that have been mildly deformed by a series of faults and folds. Quaternary surficial units are present as alluvial deposits along major streams, including a series of terrace deposits from the Buffalo River, as well as colluvium and landslide deposits mantling bedrock on hillslopes.

  13. Towards sustainable groundwater management in Karst aquifers in semi-arid environments: Central West Bank, Palestine

    Science.gov (United States)

    Jebreen, H.; Banning, A.; Wohnlich, S.

    2017-12-01

    The Central West Bank (CWB) is characterized by karstified carbonate aquifers in the semiarid climate zone, where groundwater resources are frequently threatened by overexploitation and pollution. Despite often limited system knowledge, quantitative and qualitative factors such as groundwater recharge rate, aquifer parameters, flow and transport dynamics, anthropogenic impacts, and groundwater vulnerability need to be assessed. Therefore, sustainable groundwater use in the CWB is of critical importance. In the present study, we explore the scale of the groundwater problems in CWB as well as the possibility of sustainable management through different scenarios: 1) Managed aquifer recharge using a water balance model, stable isotopes (2H & 18O) and chloride mass balance, 2) Geochemical evolution and renewability of groundwater, and 3) Anthropogenic impacts. A total of 20 spring water samples were collected and analyzed for pH, electrical conductivity, total dissolved solids (TDS), hardness, major-ion chemistry (Cl-, HCO3-, SO42-, Na+, K+, Ca2+ and Mg2+), trace elements (Li, Be, Al, Ba, Tl, Pb, Bi, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Rb, Sr, Mo, Ag and Cd), microbiological data (total and fecal coliforms bacteria), and stable isotopes (2H & 18O). The results show a spatialized recharge rate, which ranges from 111-211 mm/year, representing 17-33 % of the long-term mean annual rainfall. The mean annual actual evapotranspiration was about 19-37 % of precipitation. The chemical composition of groundwater of the study area is strongly influenced by rock-water interaction, dissolution and deposition of carbonate and silicate minerals. Stable isotopes show that precipitation is the source of recharge to the groundwater system. All analyzed spring waters are suitable for irrigation but not for drinking purposes. This studýs results can serve as a basis for decision makers, and will lead to an increased understanding of the sustainable management of the Central West Bank

  14. Age and provenance of Triassic to Cenozoic sediments of West and Central Sarawak, Malaysia

    Science.gov (United States)

    Breitfeld, H. Tim; Galin, Thomson; Hall, Robert

    2015-04-01

    Sarawak is located on the northern edge of Sundaland in NW Borneo. West and Central Sarawak include parts of the Kuching and Sibu Zones. These contain remnants of several sedimentary basins with ages from Triassic to Cenozoic. New light mineral, heavy mineral and U-Pb detrital zircon ages show differences in provenance reflecting the tectonic evolution of the region. The oldest clastic sediments are Triassic (Sadong Formation and its deep marine equivalent Kuching Formation). They were sourced by a Triassic (Carnian to Norian) volcanic arc and reworked Paleoproterozoic detritus derived from Cathaysialand. The Upper Jurassic to Cretaceous Pedawan Formation is interpreted as forearc basin fill with distinctive zircon populations indicating subduction beneath present-day West Sarawak which initiated in the Late Jurassic. Subsequent subduction until the early Late Cretaceous formed the Schwaner Mountains magmatic arc. After collision of SW Borneo and other microcontinental fragments with Sundaland in the early Late Cretaceous, deep marine sedimentation (Pedawan Formation) ceased, and there was uplift forming the regional Pedawan-Kayan unconformity. Two episodes of extension followed and were responsible for basin development on land in West Sarawak from the latest Cretaceous onwards, probably in a pull-apart setting. The first episode is associated with sediments of the Kayan Group, deposited in the Latest Cretaceous (Maastrichtian) to Eocene, and the second episode with Upper Eocene sediments of the Ketungau Basin. Zircon ages indicate volcanic activity throughout the Early Cenozoic in NW Borneo, and inherited zircon ages indicate reworking of Triassic and Cretaceous rocks. A large deep marine basin, the Rajang Basin, was north of the Lupar Line Fault in Central Sarawak (Sibu Zone) from the Late Cretaceous to the Late Eocene. Zircons from sediments of the Rajang Basin indicate they have similar ages and provenance to contemporaneous terrestrial sediments of the Kayan

  15. 'Then give him to the crocodiles' : violence, State formation, and cultural discontinuity in west central Zambia, 1600-2000

    NARCIS (Netherlands)

    Binsbergen, van W.M.J.

    2003-01-01

    The purpose of this chapter is to explore the extent to which violence can be said to underlie any form of Stae formation in precolonial Africa. This is done by examining the role of violence in State formation in west central Zambia from the 17th century onwards. The chapter shows that State

  16. Origin of amphibole-rich beach sands from Tila-Mati, Karwar, central-west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Mislankar, P.G.; Iyer, S.D.

    The pocket beach at Tila-Mati, Karwar, central west coast of India, is characterised by the occurrence of amphibole-rich (chiefly tremolite-actinolite) coarse sand in the zone of minimal impact of waves and currents. In the total sediment, grain...

  17. Community structure and coral health status across the depth gradients of Grande Island, Central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Manikandan, B.; Ravindran, J.; Mohan, H.; Periasamy, R.; ManiMurali, R.; Ingole, B.S.

    The Grande Island, located at the central west coast of India is one of the less studied coral reef systems in India. In this study, we provide a comprehensive description of the coral community structure and health status of corals across...

  18. Simulation of coastal winds along the central west coast of India using the MM5 mesoscale model

    Digital Repository Service at National Institute of Oceanography (India)

    Pushpadas, D.; Vethamony, P.; Sudheesh, K.; George, S.; Babu, M.T.; Nair, T.M.B.

    A high-resolution mesoscale numerical model (MM5) has been used to study the coastal atmospheric circulation of the central west coast of India, and Goa in particular. The model is employed with three nested domains. The innermost domain of 3 km...

  19. An Exploration of the Associations among Hearing Loss, Physical Health, and Visual Memory in Adults from West Central Alabama

    Science.gov (United States)

    Hay-McCutcheon, Marcia J.; Hyams, Adriana; Yang, Xin; Parton, Jason; Panasiuk, Brianna; Ondocsin, Sarah; James, Mary Margaret; Scogin, Forrest

    2017-01-01

    Purpose: The purpose of this preliminary study was to explore the associations among hearing loss, physical health, and visual memory in adults living in rural areas, urban clusters, and an urban city in west Central Alabama. Method: Two hundred ninety-seven adults (182 women, 115 men) from rural areas, urban clusters, and an urban city of west…

  20. On the distribution of fluoride, calcium and magnesium in the waters off the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Naik, S.; Dias, C.F.M.

    The distribution of fluoride, calcium and magnesium was studied in the waters off the central west coast of India. The averages F/Cl, Ca/Cl and Mg/Cl ratios observed are (6.83 plus or minus 0.023) x 10@u-5@@, (0.02194 plus or minus 0.00068) and (0...

  1. Radiological re-survey results at 146 West Central Avenue, Maywood, New Jersey (MJ034)

    International Nuclear Information System (INIS)

    Murray, M.E.; Johnson, C.A.

    1994-05-01

    Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from 1916 to 1959. During the early years of operation, MCW stored wastes and residues in low-lying areas west of the processing facilities and consequently some of the residuals containing radioactive materials migrated offsite to the surrounding area. Subsequently, the U.S. Department of Energy (DOE) designated for remedial action the old MCW property and several vicinity properties. Additionally, in 1984, the property at 146 West Central Ave., Maywood, New Jersey and properties in its vicinity were included as a decontamination research and development project under the DOE Formerly Utilized Sites Remedial Action Program. In 1987 and 1988, at the request of DOE, Oak Ridge National Laboratory (ORNL) conducted a radiological survey on this property. A report describing this survey was published in 1989. A second radiological survey by ORNL was conducted on this property in May 1993 at the request of DOE after an ad hoc radiological survey, requested by the property owner and conducted by Bechtel National, Inc. (BNI), identified some contamination not previously found by ORNL. The purpose of the second ORNL survey was to determine whether radioactive materials from the old MCW were present on the property, and if so, if radioactive materials present were above guidelines. A certified civil survey was requisitioned by ORNL to determine actual property boundaries before beginning the radiological re-survey. The re-survey included a surface gamma scan and the collection of a large number of soil samples for radionuclide analyses. Results of this survey demonstrated that although elevated residual thorium-232 contamination was present in a few isolated spots on the southern end of the backyard, it did not exceed DOE guidelines

  2. Sinais clínicos, distribuição das lesões no sistema nervoso e epidemiologia da raiva em herbívoros na região Nordeste do Brasil Clinical signs, distribution of the lesions in the central nervous system and epidemiology of rabies in northeastern Brazil

    Directory of Open Access Journals (Sweden)

    Everton Ferreira Lima

    2005-12-01

    Full Text Available Descrevem-se 24 surtos de raiva em bovinos (25 casos, 4 em eqüinos (5 casos, 2 em caprinos (2 casos e 2 em ovinos (4 casos. Todos os surtos ocorreram na Paraíba, exceto um em eqüinos que ocorreu no Rio Grande do Norte. Todos os surtos, com a exceção de um em ovinos, foram transmitidos provavelmente por morcegos hematófagos; no entanto, não se descarta a possibilidade de transmissão por raposas (Dusicyon vetulus. Os sinais clínicos foram representativos da localização das lesões no sistema nervoso central (SNC. Em bovinos os sinais eram, principalmente, da forma paralítica, causados por lesões da medula, tronco encefálico e cerebelo; mas alguns animais apresentaram depressão, excitação e outros sinais associados a lesões cerebrais. Três dos 5 eqüinos apresentaram sinais de lesões cerebrais e 2 apresentaram a forma paralítica. De 4 ovinos e 2 caprinos, 4 apresentaram a forma paralítica, mas em um caprino e um ovino os sinais foram predominantemente de lesões cerebrais. Todos os animais afetados, exceto um caprino, tiveram um curso clínico de 2-8 dias. As únicas lesões macros-cópicas observadas foram a dilatação da bexiga em 4 bovinos e a dilatação da ampola retal em 2. Dois cavalos apresentaram lesões da pele causadas por traumatismos. As lesões histológicas foram de encefalomielite e meningite difusa não supurativa. Nos eqüinos e em um caprino com evolução clínica de 35 dias as lesões foram mais severas, observando-se necrose neuronal, neuronofagia e presença de esferóides axonais. Corpúsculos de Negri foram observados em 87% (20/23 dos bovinos examinados e em 83% (5/6 dos ovinos e caprinos. Nessas 3 espécies os corpúsculos foram mais freqüentes no cerebelo, mas ocorreram também no tronco encefálico, medula e cérebro. Em cavalos, corpúsculos de Negri foram menos numerosos, sendo observados somente no córtex de um animal e no córtex e hipocampo em outro. No gânglio trigeminal, as les

  3. Numerical simulation of the groundwater-flow system of the Kitsap Peninsula, west-central Washington

    Science.gov (United States)

    Frans, Lonna M.; Olsen, Theresa D.

    2016-05-05

    A groundwater-flow model was developed to improve understanding of water resources on the Kitsap Peninsula. The Kitsap Peninsula is in the Puget Sound lowland of west-central Washington, is bounded by Puget Sound on the east and by Hood Canal on the west, and covers an area of about 575 square miles. The peninsula encompasses all of Kitsap County, Mason County north of Hood Canal, and part of Pierce County west of Puget Sound. The peninsula is surrounded by saltwater, and the hydrologic setting is similar to that of an island. The study area is underlain by a thick sequence of unconsolidated glacial and interglacial deposits that overlie sedimentary and volcanic bedrock units that crop out in the central part of the study area. Twelve hydrogeologic units consisting of aquifers, confining units, and an underlying bedrock unit form the basis of the groundwater-flow model.Groundwater flow on the Kitsap Peninsula was simulated using the groundwater-flow model, MODFLOW‑NWT. The finite difference model grid comprises 536 rows, 362 columns, and 14 layers. Each model cell has a horizontal dimension of 500 by 500 feet, and the model contains a total of 1,227,772 active cells. Groundwater flow was simulated for transient conditions. Transient conditions were simulated for January 1985–December 2012 using annual stress periods for 1985–2004 and monthly stress periods for 2005–2012. During model calibration, variables were adjusted within probable ranges to minimize differences between measured and simulated groundwater levels and stream baseflows. As calibrated to transient conditions, the model has a standard deviation for heads and flows of 47.04 feet and 2.46 cubic feet per second, respectively.Simulated inflow to the model area for the 2005–2012 period from precipitation and secondary recharge was 585,323 acre-feet per year (acre-ft/yr) (93 percent of total simulated inflow ignoring changes in storage), and simulated inflow from stream and lake leakage was 43

  4. Results of the radiological survey at 130 West Central Avenue, Maywood, New Jersey (MJ029)

    International Nuclear Information System (INIS)

    Foley, R.D.; Floyd, L.M.; Carrier, R.F.

    1989-10-01

    Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from monazite ores from 1916 to 1956. MCW supplied rare earth metals and thorium compounds to the Atomic Energy Commission and various other government agencies from the late 1940s to the mid-1950s. Area residents used the sandlike waste from this thorium extraction process mixed with tea and cocoa leaves as mulch in their yards. Some of these contaminated wastes were also eroded from the site into Lodi Brook. At the request of the US Department of Energy (DOE), a group from Oak Ridge National Laboratory conducts investigative radiological surveys of properties in the vicinity of MCW to determine whether a property is contaminated with radioactive residues, principally 232 Th, derived from the MCW site. The survey typically includes direct measurement of gamma radiation levels and soil sampling for radionuclides analyses. The survey of this site, 130 West Central Avenue, Maywood, New Jersey (MJ029), was conducted during 1987 and 1988. Some radionuclide measurements were greater than typical background levels in the northern New Jersey area. However, results of the survey demonstrated no radionuclide concentrations in excess of the DOE Formerly Utilized Sites Remedial Action program criteria. 4 refs., 7 figs., 3 tabs

  5. Results of the radiological survey at 21 West Central Avenue, Maywood, New Jersey (MJ046)

    International Nuclear Information System (INIS)

    Foley, R.D.; Floyd, L.M.

    1989-11-01

    Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from monazite ores from 1916 to 1956. MCW supplied rare earth metals and thorium compounds to the Atomic Energy Commission and various other government agencies from the late 1940s to the mid-1950s. Area residents used the sandlike waste from this thorium extraction process mixed with tea and cocoa leaves as mulch in their yards. Some of these contaminated wastes were also eroded from the site into Lodi Brook. At the request of the US Department of Energy (DOE), a group from Oak Ridge National Laboratory conducts investigative radiological surveys of properties in the vicinity of MCW to determine whether a property is contaminated with radioactive residues, principally 232 Th, derived from the MCW site. The survey typically includes direct measurement of gamma radiation levels and soil sampling for radionuclide analyses. The survey of this site, 21 West Central Avenue, Maywood, New Jersey (MJ046), was conducted during 1988. 5 refs., 2 figs., 3 tabs

  6. Results of the radiological survey at 142 West Central Avenue, Maywood, New Jersey (MJ041)

    International Nuclear Information System (INIS)

    Foley, R.D.; Crutcher, J.W.

    1989-06-01

    Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from monazite ores from 1916 to 1956. MCW supplied rare earth metals and thorium compounds to the Atomic Energy Commission and various other government agencies from the late 1940s to the mid-1950s. Area residents used the sandlike waste from this thorium extraction process mixed with tea and cocoa leaves as mulch in their yards. Some of these contaminated wastes were also eroded from the site into Lodi Brook. At the request of the US Department of Energy (DOE), a group from Oak Ridge National Laboratory conducts investigative radiological surveys of properties in the vicinity of MCW to determine whether a property is contaminated with radioactive residues, principally 232 Th, derived from the MCW site. The survey typically includes direct measurement of gamma radiation levels and soil sampling for radionuclide analyses. The survey of this site, 142 West Central Avenue, Maywood, New Jersey (MJ041), was conducted during 1988. Results of the survey indicated scattered radiation or ''shine'' from a storage pile, located off the property, containing residual radioactive material. Lead-shielded measurements showed radioactivity in the range of normal background for the northern New Jersey area. Radiological assessments of soil samples from the site demonstrate no radionuclide concentrations in excess of DOE Formerly Utilized Sites Remedial Action Program criteria. 4 refs., 8 figs., 3 tabs

  7. Radiation-hazardous objects at the west and central Kazakstan territory

    International Nuclear Information System (INIS)

    Kadyrzhanov, K.K.; Kuterbekov, K.A.; Akhmetov, E.Z.; Lukashenko, S.N.; Dzhazairov-Kakhramanov, V.

    2001-01-01

    In 1965-1987, there were conducted 39 industrial underground explosions in the territory of Kazakhstan Republic, in particular in its west and central region (explosions conducted at Semipalatinsk test site, East-Kazakhstan oblates are not included). These explosions were conducted in terms of the Program 7 Peaceful nuclear explosions for industrial purposes with the purpose of test-industrial investigation conducting for testing a technology for formation of cavities in rock salt in order to be used as multipurpose large volume storage. Energy from underground nuclear explosions was used for peaceful technological purposes, in particular, in the territories of hydrocarbon raw materials mining and industrial developing. It is obvious, that residual radioactivity, even if it is very small, is a factor, that hampers to use nuclear explosions for this purpose. The major problems are the following: safety measures, which are necessary for implementation of the projects on nuclear explosion usage in peaceful purposes, admissible level of environment pollution in whole and possible consequences. All necessary measures must be taken to ensure safety in the regions, where explosions were conducted, including all the least probable accidents (for instance, breach during camuflet explosions). To make sure, that existing admissible standards will not be exceeded, it is necessary to know the level of environment radiation contamination and to forecast probable contamination caused by explosions

  8. Climate Change in Central and West Asia. Routes to a More Secure, Low-Carbon Future

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2010-11-15

    ADB's Central and West Asian countries are Afghanistan, Armenia, Azerbaijan, Georgia, Kazakhstan, the Kyrgyz Republic, Pakistan, Tajikistan, Turkmenistan, and Uzbekistan. Geoclimatic and environmental factors make this region highly vulnerable to the risks and hazards of climate change. For example, accelerated glacial melt has serious implications for agriculture, water supply, and energy generation - problems exacerbated by overexploitation of natural resources. Countries may find it difficult to shift to low-carbon growth, since many have abundant fossil fuel and tend to use energy inefficiently. ADB is responding to these climate hazards and low-carbon pathways with a comprehensive strategy that strengthens policies, governance, and capacity support; expands the use of clean and renewable energy; encourages sustainable transport and urban development; promotes development that will be more resilient to climate change, especially in water-dependent sectors; and manages land use and forests for carbon sequestration. ADB's support is helping its developing member countries face the challenges of climate change and, with partners, is providing innovative solutions, while continuing to work to reduce poverty.

  9. Surface-water radon-222 distribution along the west-central Florida shelf

    Science.gov (United States)

    Smith, C.G.; Robbins, L.L.

    2012-01-01

    In February 2009 and August 2009, the spatial distribution of radon-222 in surface water was mapped along the west-central Florida shelf as collaboration between the Response of Florida Shelf Ecosystems to Climate Change project and a U.S. Geological Survey Mendenhall Research Fellowship project. This report summarizes the surface distribution of radon-222 from two cruises and evaluates potential physical controls on radon-222 fluxes. Radon-222 is an inert gas produced overwhelmingly in sediment and has a short half-life of 3.8 days; activities in surface water ranged between 30 and 170 becquerels per cubic meter. Overall, radon-222 activities were enriched in nearshore surface waters relative to offshore waters. Dilution in offshore waters is expected to be the cause of the low offshore activities. While thermal stratification of the water column during the August survey may explain higher radon-222 activities relative to the February survey, radon-222 activity and integrated surface-water inventories decreased exponentially from the shoreline during both cruises. By estimating radon-222 evasion by wind from nearby buoy data and accounting for internal production from dissolved radium-226, its radiogenic long-lived parent, a simple one-dimensional model was implemented to determine the role that offshore mixing, benthic influx, and decay have on the distribution of excess radon-222 inventories along the west Florida shelf. For multiple statistically based boundary condition scenarios (first quartile, median, third quartile, and maximum radon-222 inshore of 5 kilometers), the cross-shelf mixing rates and average nearshore submarine groundwater discharge (SGD) rates varied from 100.38 to 10-3.4 square kilometers per day and 0.00 to 1.70 centimeters per day, respectively. This dataset and modeling provide the first attempt to assess cross-shelf mixing and SGD on such a large spatial scale. Such estimates help scale up SGD rates that are often made at 1- to 10-meter

  10. Ecosystem carbon stocks of mangroves across broad environmental gradients in West-Central Africa: Global and regional comparisons.

    Directory of Open Access Journals (Sweden)

    J Boone Kauffman

    Full Text Available Globally, it is recognized that blue carbon ecosystems, especially mangroves, often sequester large quantities of carbon and are of interest for inclusion in climate change mitigation strategies. While 19% of the world's mangroves are in Africa, they are among the least investigated of all blue carbon ecosystems. We quantified total ecosystem carbon stocks in 33 different mangrove stands along the Atlantic coast of West-Central Africa from Senegal to Southern Gabon spanning large gradients of latitude, soil properties, porewater salinity, and precipitation. Mangrove structure ranged from low and dense stands that were 35,000 trees ha-1 to tall and open stands >40m in height and 1,000 Mg C ha-1. The lowest carbon stocks were found in the low mangroves of the semiarid region of Senegal (463 Mg C ha-1 and in mangroves on coarse-textured soils in Gabon South (541 Mg C ha-1. At the scale of the entirety of West-Central Africa, total ecosystem carbon stocks were poorly correlated to aboveground ecosystem carbon pools, precipitation, latitude and soil salinity (r2 = ≤0.07 for all parameters. Based upon a sample of 158 sites from Africa, Asia and Latin America that were sampled in a similar manner to this study, the global mean of carbon stocks for mangroves is 885 Mg C ha-1. The ecosystem carbon stocks of mangroves for West-Central Africa are slightly lower than those of Latin America (940 Mg C ha-1 and Asia (1049 Mg C ha-1 but substantially higher than the default Intergovernmental Panel on Climate Change (IPCC values for mangroves (511 Mg C ha-1. This study provides an improved estimation of default estimates (Tier 1 values of mangroves for Asia, Latin America, and West Central Africa.

  11. Historic impact of watershed change and sedimentation to reefs along west-central Guam

    Science.gov (United States)

    Prouty, Nancy G.; Storlazzi, Curt D.; McCutcheon, Amanda L.; Jenson, John W.

    2014-01-01

    Using coral growth parameters (extension, density, calcification rates, and luminescence) and geochemical measurements (barium to calcium rations; Ba/Ca) from coral cores collected in west-central Guam, we provide a historic perspective on sediment input to coral reefs adjacent to the Piti-Asan watershed. The months of August through December are dominated by increased coral Ba/Ca values, corresponding to the rainy season. With river water enriched in barium related to nearshore seawater, coral Ba/Ca ratios are presented as a proxy for input of fine-grained terrigenous sediment to the nearshore environment. The century-long Ba/Ca coral record indicates that the Asan fore reef is within the zone of impact from discharged sediments transported from the Piti-Asan watershed and has experienced increased terrestrial sedimentation since the 1940s. This abrupt shift in sedimentation occurred at the same time as both the sudden denudation of the landscape by military ordinance and the immediate subsequent development of the Asan area through the end of the war, from 1944 through 1945. In response to rapid input of sediment, as determined from coral Ba/Ca values, coral growth rates were reduced for almost two decades, while calcification rates recovered much more quickly. Furthermore, coral luminescence is decoupled from the Ba/Ca record, which is consistent with degradation of soil organic matter through disturbance by forest fires, suggesting a potential index of fire history and degradation of soil organic matter. These patterns were not seen in the cores from nearby reefs associated with watersheds that have not undergone the same degree of landscape denudation. Taken together, these records provide a valuable tool for understanding the compounding effects of land-use change on coral reef health.

  12. Historic impact of watershed change and sedimentation to reefs along west-central Guam

    Science.gov (United States)

    Prouty, Nancy G.; Storlazzi, Curt D.; McCutcheon, Amanda L.; Jenson, John W.

    2014-09-01

    Using coral growth parameters (extension, density, calcification rates, and luminescence) and geochemical measurements (barium to calcium rations; Ba/Ca) from coral cores collected in west-central Guam, we provide a historic perspective on sediment input to coral reefs adjacent to the Piti-Asan watershed. The months of August through December are dominated by increased coral Ba/Ca values, corresponding to the rainy season. With river water enriched in barium related to nearshore seawater, coral Ba/Ca ratios are presented as a proxy for input of fine-grained terrigenous sediment to the nearshore environment. The century-long Ba/Ca coral record indicates that the Asan fore reef is within the zone of impact from discharged sediments transported from the Piti-Asan watershed and has experienced increased terrestrial sedimentation since the 1940s. This abrupt shift in sedimentation occurred at the same time as both the sudden denudation of the landscape by military ordinance and the immediate subsequent development of the Asan area through the end of the war, from 1944 through 1945. In response to rapid input of sediment, as determined from coral Ba/Ca values, coral growth rates were reduced for almost two decades, while calcification rates recovered much more quickly. Furthermore, coral luminescence is decoupled from the Ba/Ca record, which is consistent with degradation of soil organic matter through disturbance by forest fires, suggesting a potential index of fire history and degradation of soil organic matter. These patterns were not seen in the cores from nearby reefs associated with watersheds that have not undergone the same degree of landscape denudation. Taken together, these records provide a valuable tool for understanding the compounding effects of land-use change on coral reef health.

  13. Ichthyoplankton assemblages of coastal west-central Lake Erie and associated habitat characteristics

    Science.gov (United States)

    McKenna, J.E.; Hunter, R. Douglas; Fabrizio, M.C.; Savino, J.F.; Todd, T.N.; Bur, M.

    2008-01-01

    Early life stage survival often determines fish cohort strength and that survival is affected by habitat conditions. The structure and dynamics of ichthyoplankton assemblages can tell us much about biodiversity and fish population dynamics, but are poorly understood in nearshore areas of the Great Lakes, where most spawning and nursery habitats exist. Ichthyoplankton samples were collected with a neuston net in waters 2-13 m deep weekly or biweekly from mid-April through August, during 3 years (2000-2002) as part of a study of fish assemblages in west-central Lake Erie. A suite of abiotic variables was simultaneously measured to characterize habitat. Cluster and ordination analyses revealed several distinct ichthyoplankton assemblages that changed seasonally. A lake whitefish (Coregonus clupeaformis) dominated assemblage appeared first in April. In May, assemblages were dominated by several percid species. Summer assemblages were overwhelmingly dominated by emerald shiner (Notropis atherinoides), with large gizzard shad (Dorosoma cepedianum) and alewife (Alosa pseudoharengus) components. This seasonal trend in species assemblages was also associated with increasing temperature and water clarity. Water depth and drift processes may also play a role in structuring these assemblages. The most common and widely distributed assemblages were not associated with substratum type, which we characterized as either hard or soft. The timing of hatch and larval growth separated the major groups in time and may have adaptive significance for the members of each major assemblage. The quality and locations (with reference to lake circulation) of spawning and nursery grounds may determine larval success and affect year class strength.

  14. The morphology and migration of transverse bars off the west-central Florida coast

    Science.gov (United States)

    Gelfenbaum, G.; Brooks, G.R.

    2003-01-01

    A series of migrating shore-normal sandbars with wavelengths of 75-120 m and heights up to 2 m have been identified off the northern tip of Anna Maria Island, a barrier island on the west-central Florida coast. Similar features have been described elsewhere since the 1930s and termed 'transverse bars'. The transverse bars identified off Anna Maria Island are found for about 3 km along the coast and extend 4 km offshore, well outside the normal surf-zone width. No cusps or any other associated beach expression is evident despite the fact that the bars come to within about 75 m of the beach. Sediments on the crests of the bars are a well-sorted fine quartz sand, whereas sediments in the troughs are a poorly sorted coarse carbonate shell hash. Historical aerial photographs and repeated high-resolution bathymetric surveys provide a means of quantifying the migration of the transverse bars. Analyses of orthorectified aerial photographs from the early 1940s through the mid 1990s clearly show movement or migration taking place in the bar field. In the 40-yr period from 1951 to 1991, the southern edge of the bar field moved 200-350 m to the south, with an average long-term migration rate of 8 m/yr. Repeated bathymetric surveys over an 8-month period give an average short-term migration rate of 21 m/yr to the south. Wave and current measurements suggest that southerly winds associated with the passage of cold fronts drive near-bed currents to the south that are strong enough to initiate sediment transport and cause the southerly migration of the transverse bars.

  15. Rare earths, thorium, and other minor elements in sphene from some plutonic rocks in West-Central Alaska

    International Nuclear Information System (INIS)

    Staatz, M.H.; Conklin, N.M.; Brownfield, I.K.

    1977-01-01

    Sphene is an abundant accessory mineral in some abnormally radioactive plutonic rocks in west-central Alaska. Seven samples of sphene from four different areas in west-central Alaska contained from 20,350 to 39,180 parts per million total rare earths and 390 to 2000 ppM thorium. The lanthanide content in six of the seven sphenes is chiefly the light rare earths and is similar to that of crystal abundance; a seventh sphene from the Darby Mountains, however, contains above average amounts of the heavy rare earths. A comparison of the lanthanide distribution in sphene from several areas indicates that the structure of sphene will accommodate whatever lanthanides are available when the mineral crystallizes. The amount of thorium and rare earths in sphene is also affected by the presence of other accessory minerals. Sphene in rocks containing either allanite or zircon has a lower thorium content than in rocks that do not contain allanite or zircon. Sphene, because of its abundance, may contain the greater part of the rare earths and thorium in some of the plutonic rocks of west-central Alaska

  16. Serosurvey Reveals Exposure to West Nile Virus in Asymptomatic Horse Populations in Central Spain Prior to Recent Disease Foci.

    Science.gov (United States)

    Abad-Cobo, A; Llorente, F; Barbero, M Del Carmen; Cruz-López, F; Forés, P; Jiménez-Clavero, M Á

    2017-10-01

    West Nile fever/encephalitis (WNF) is an infectious disease affecting horses, birds and humans, with a cycle involving birds as natural reservoirs and mosquitoes as transmission vectors. It is a notifiable disease, re-emerging in Europe. In Spain, it first appeared in horses in the south (Andalusia) in 2010, where outbreaks occur every year since. However, in 2014, an outbreak was declared in horses in central Spain, approximately 200 km away from the closest foci in Andalusia. Before that, evidence of West Nile virus (WNV) circulation in central Spain had been obtained only from wildlife, but never in horses. The purpose of this work was to perform a serosurvey to retrospectively detect West Nile virus infections in asymptomatic horses in central Spain from 2011 to 2013, that is before the occurrence of the first outbreaks in the area. For that, serum samples from 369 horses, collected between September 2011 and November 2013 in central Spain, were analysed by ELISA (blocking and IgM) and confirmed by virus neutralization, proving its specificity using parallel titration with another flavivirus (Usutu virus). As a result, 10 of 369 horse serum samples analysed gave positive results by competitive ELISA, 5 of which were confirmed as positive to WNV by virus neutralization (seropositivity rate: 1.35%). One of these WNV seropositive samples was IgM-positive. Chronologically, the first positive samples, including the IgM-positive, corresponded to sera collected in 2012 in Madrid province. From these results, we concluded that WNV circulated in asymptomatic equine populations of central Spain at least since 2012, before the first disease outbreak reported in this area. © 2016 Blackwell Verlag GmbH.

  17. Diversity and distribution of medicinal plants in North Sinai, Egypt

    African Journals Online (AJOL)

    Administrator

    2008-07-22

    Jul 22, 2008 ... cinal plants in Sinai have attracted the attention of many ecologists ...... species are divided among many genera as opposed to one in which most species .... topographic variations are the main driving factors controlling the ...

  18. Standardising visual control devices for tsetse flies: Central and West African species Glossina palpalis palpalis.

    Directory of Open Access Journals (Sweden)

    Dramane Kaba

    Full Text Available BACKGROUND: Glossina palpalis palpalis (G. p. palpalis is one of the principal vectors of sleeping sickness and nagana in Africa with a geographical range stretching from Liberia in West Africa to Angola in Central Africa. It inhabits tropical rain forest but has also adapted to urban settlements. We set out to standardize a long-lasting, practical and cost-effective visually attractive device that would induce the strongest landing response by G. p. palpalis for future use as an insecticide-impregnated tool in area-wide population suppression of this fly across its range. METHODOLOGY/PRINCIPAL FINDINGS: Trials were conducted in wet and dry seasons in the Ivory Coast, Cameroon, the Democratic Republic of Congo and Angola to measure the performance of traps (biconical, monoconical and pyramidal and targets of different sizes and colours, with and without chemical baits, at different population densities and under different environmental conditions. Adhesive film was used as a practical enumerator at these remote locations to compare landing efficiencies of devices. Independent of season and country, both phthalogen blue-black and blue-black-blue 1 m(2 targets covered with adhesive film proved to be as good as traps in phthalogen blue or turquoise blue for capturing G. p. palpalis. Trap efficiency varied (8-51%. There was no difference between the performance of blue-black and blue-black-blue 1 m(2 targets. Baiting with chemicals augmented the overall performance of targets relative to traps. Landings on smaller phthalogen blue-black 0.25 m(2 square targets were not significantly different from either 1 m(2 blue-black-blue or blue-black square targets. Three times more flies were captured per unit area on the smaller device. CONCLUSIONS/SIGNIFICANCE: Blue-black 0.25 m(2 cloth targets show promise as simple cost effective devices for management of G. p. palpalis as they can be used for both control when impregnated with insecticide and for

  19. Honey Bee Infecting Lake Sinai Viruses.

    Science.gov (United States)

    Daughenbaugh, Katie F; Martin, Madison; Brutscher, Laura M; Cavigli, Ian; Garcia, Emma; Lavin, Matt; Flenniken, Michelle L

    2015-06-23

    Honey bees are critical pollinators of important agricultural crops. Recently, high annual losses of honey bee colonies have prompted further investigation of honey bee infecting viruses. To better characterize the recently discovered and very prevalent Lake Sinai virus (LSV) group, we sequenced currently circulating LSVs, performed phylogenetic analysis, and obtained images of LSV2. Sequence analysis resulted in extension of the LSV1 and LSV2 genomes, the first detection of LSV4 in the US, and the discovery of LSV6 and LSV7. We detected LSV1 and LSV2 in the Varroa destructor mite, and determined that a large proportion of LSV2 is found in the honey bee gut, suggesting that vector-mediated, food-associated, and/or fecal-oral routes may be important for LSV dissemination. Pathogen-specific quantitative PCR data, obtained from samples collected during a small-scale monitoring project, revealed that LSV2, LSV1, Black queen cell virus (BQCV), and Nosema ceranae were more abundant in weak colonies than strong colonies within this sample cohort. Together, these results enhance our current understanding of LSVs and illustrate the importance of future studies aimed at investigating the role of LSVs and other pathogens on honey bee health at both the individual and colony levels.

  20. Honey Bee Infecting Lake Sinai Viruses

    Directory of Open Access Journals (Sweden)

    Katie F. Daughenbaugh

    2015-06-01

    Full Text Available Honey bees are critical pollinators of important agricultural crops. Recently, high annual losses of honey bee colonies have prompted further investigation of honey bee infecting viruses. To better characterize the recently discovered and very prevalent Lake Sinai virus (LSV group, we sequenced currently circulating LSVs, performed phylogenetic analysis, and obtained images of LSV2. Sequence analysis resulted in extension of the LSV1 and LSV2 genomes, the first detection of LSV4 in the US, and the discovery of LSV6 and LSV7. We detected LSV1 and LSV2 in the Varroa destructor mite, and determined that a large proportion of LSV2 is found in the honey bee gut, suggesting that vector-mediated, food-associated, and/or fecal-oral routes may be important for LSV dissemination. Pathogen-specific quantitative PCR data, obtained from samples collected during a small-scale monitoring project, revealed that LSV2, LSV1, Black queen cell virus (BQCV, and Nosema ceranae were more abundant in weak colonies than strong colonies within this sample cohort. Together, these results enhance our current understanding of LSVs and illustrate the importance of future studies aimed at investigating the role of LSVs and other pathogens on honey bee health at both the individual and colony levels.

  1. Trend and variability in a new, reconstructed streamflow dataset for West and Central Africa, and climatic interactions, 1950-2005

    Science.gov (United States)

    Sidibe, Moussa; Dieppois, Bastien; Mahé, Gil; Paturel, Jean-Emmanuel; Amoussou, Ernest; Anifowose, Babatunde; Lawler, Damian

    2018-06-01

    Over recent decades, regions of West and Central Africa have experienced different and significant changes in climatic patterns, which have significantly impacted hydrological regimes. Such impacts, however, are not fully understood at the regional scale, largely because of scarce hydroclimatic data. Therefore, the aim of this study is to (a) assemble a new, robust, reconstructed streamflow dataset of 152 gauging stations; (b) quantify changes in streamflow over 1950-2005 period, using these newly reconstructed datasets; (c) significantly reveal trends and variability in streamflow over West and Central Africa based on new reconstructions; and (d) assess the robustness of this dataset by comparing the results with those identified in key climatic drivers (e.g. precipitation and temperature) over the region. Gap filling methods applied to monthly time series (1950-2005) yielded robust results (median Kling-Gupta Efficiency >0.75). The study underlines a good agreement between precipitation and streamflow trends and reveals contrasts between western Africa (negative trends) and Central Africa (positive trends) in the 1950s and 1960s. Homogenous dry conditions of the 1970s and 1980s, characterized by reduced significant negative trends resulting from quasi-decadal modulations of the trend, are replaced by wetter conditions in the recent period (1993-2005). The effect of this rainfall recovery (which extends to West and Central Africa) on increased river flows are further amplified by land use change in some Sahelian basins. This is partially offset, however, by higher potential evapotranspiration rates over parts of Niger and Nigeria. Crucially, the new reconstructed streamflow datasets presented here will be available for both the scientific community and water resource managers.

  2. Surface-Water and Groundwater Interactions along the Withlacoochee River, West-Central Florida

    Science.gov (United States)

    Trommer, J.T.; Yobbi, D.K.; McBride, W.S.

    2009-01-01

    A study of the Withlacoochee River watershed in west-central Florida was conducted from October 2003 to March 2007 to gain a better understanding of the hydrology and surface-water and groundwater interactions along the river. The Withlacoochee River originates in the Green Swamp area in north-central Polk County and flows northerly through seven counties, emptying into the Gulf of Mexico. This study includes only the part of the watershed located between the headwaters in the Green Swamp and the U.S. Geological Survey gaging station near Holder, Florida. The Withlacoochee River within the study area is about 108 miles long and drains about 1,820 square miles. The Withlacoochee River watershed is underlain by thick sequences of carbonate rock that are covered by thin surficial deposits of unconsolidated sand and sandy clay. The clay layer is breached in many places because of the karst nature of the underlying limestone, and the degree of confinement between the Upper Florida aquifer and the surficial aquifer is highly variable throughout the watershed. The potential for movement of water from the surface or shallow deposits to deeper deposits, or from deeper deposits to the shallow deposits, exists throughout the Withlacoochee River watershed. Water levels were higher in deeper Upper Floridan aquifer wells than in shallow Upper Floridan aquifer wells or surficial aquifer wells at 11 of 19 paired or nested well sites, indicating potential for discharge to the surface-water system. Water levels were higher in shallow Upper Floridan aquifer or surficial aquifer wells than in deeper Upper Floridan aquifer wells at five other sites, indicating potential for recharge to the deeper Upper Floridan aquifer. Water levels in the surficial aquifer and Upper Floridan aquifer wells at the remaining three sites were virtually the same, indicating little or no confinement at the sites. Potentiometric-surface maps of the Upper Floridan aquifer indicate the pattern of groundwater

  3. Interlaboratory comparison of {sup 10}Be concentrations in two ice cores from Central West Antarctica

    Energy Technology Data Exchange (ETDEWEB)

    Woodruff, Thomas E., E-mail: woodruft@purdue.edu [PRIME Laboratory, Purdue University, West Lafayette, IN 47907 (United States); Welten, Kees C. [Space Sciences Laboratory, University of California, Berkeley, CA 94720 (United States); Caffee, Marc W. [PRIME Laboratory, Purdue University, West Lafayette, IN 47907 (United States); Nishiizumi, Kunihiko [Space Sciences Laboratory, University of California, Berkeley, CA 94720 (United States)

    2013-01-15

    To improve sample processing efficiency for cosmogenic radionuclide measurements in samples from the West Antarctic Ice Sheet Divide core, two chemical lines, one at Purdue University and one at University of California, Berkeley, are being used. Sections from two shallow ice cores from West Antarctica were processed at each lab, while all {sup 10}Be accelerator mass spectrometry measurements were performed at PRIME Lab, Purdue University. Duplicate samples gave {sup 10}Be results that are identical to within the AMS measurement uncertainties of 2-3%.

  4. Diagenetic history of the Swan Hills Simonette Oil Reservoir (Givetian-Frasnian), deep basin of west-central Alberta, Canada

    Energy Technology Data Exchange (ETDEWEB)

    Duggan, J.P.; Mountjoy, E.W. [McGill Univ., Montreal, PQ (Canada). Dept. of Earth and Planetary Sciences

    1997-05-01

    The geology and diagenetic history of the Swan Hills Simonette oil field of west-central Alberta basin was described. Present-day burial depth is 3900 m; formation temperature is 93 degrees C. Highest porosites (20 per cent) occur in dolostones of the lagoon, ref, and fore-reef depositional environments but limestones still retain porosities up to five per cent. Hydrocarbons are present in saddle dolomite fluid inclusions. Oxygen isotopes for replacement dolomites and late calcite suggest that the carbonate-precipitating fluids were derived from the Precambrian basement or Paleozoic clastics sourced from the basement. Faults may have acted as vertical conduits for fluid migration.

  5. Geophysical Measurements in the Beaver Basin, West-Central Utah; Part 1--Slingram, Magnetic, and Self-Potential Profiles

    OpenAIRE

    Flanigan, Vincent J.; Campbell, David L.; U.S. Geological Survey

    1981-01-01

    This report consists of figures showing profile locations (fig. 1, table 1) in the Beaver Basin, west-central Utah, and ground geophysical data collected in September 1980 along these traverses (figs. 2-11). These data consist of slingram electromagnetic (real and imaginary components at 222, 444, 888, 1777, and 3555 Hz), ground magnetic and self-potential measurements collected at 200-foot (61-m) intervals along about 8.8 miles (14.2 km) of survey line. Table 2 lists equipment used. The r...

  6. Permafrost distribution in peatlands of west-central Canada during the Holocene warm period 6000 years BP

    Energy Technology Data Exchange (ETDEWEB)

    Zoltai, S.C. [Canadian Forest Service, Edmonton, AB (Canada)

    1995-12-31

    The extent and timing of permafrost development in peatlands of west-central Canada are examined. The floristic composition of the permafrost peatlands was determined from macrofossil samples of cores drilled at 161 locations. Radiocarbon dating of substantial changes in the peat sequences and of basal peat deposition was used to provide chronological control. The reconstructed paleoenvironments show the presence or absence of permafrost at the time of peat formation. Permafrost distribution in peatlands is estimated during the warm period 6000 years BP. It is estimated that the mean annual temperature was approximately 5{degree}C warmer than at present. 42 refs., 3 figs., 4 tabs.

  7. Regeneration in defoliated and thinned hardwood stands of north-central West Virginia

    Science.gov (United States)

    R. M. Muzika; M. J. Twery

    1995-01-01

    Overstory species regeneration was examined in 1989, prior to gypsy moth defoliation and thinnings, on 16 stands in the West Virginia University Forest. Three stands were thinned and defoliated while five were thinned only and three were defoliated only. Five stands were neither thinned nor defoliated. Data were collected from these stands for three years subsequent to...

  8. Analysis of variables affecting unemployment rate and detecting for cluster in West Java, Central Java, and East Java in 2012

    Science.gov (United States)

    Samuel, Putra A.; Widyaningsih, Yekti; Lestari, Dian

    2016-02-01

    The objective of this study is modeling the Unemployment Rate (UR) in West Java, Central Java, and East Java, with rate of disease, infant mortality rate, educational level, population size, proportion of married people, and GDRP as the explanatory variables. Spatial factors are also considered in the modeling since the closer the distance, the higher the correlation. This study uses the secondary data from BPS (Badan Pusat Statistik). The data will be analyzed using Moran I test, to obtain the information about spatial dependence, and using Spatial Autoregressive modeling to obtain the information, which variables are significant affecting UR and how great the influence of the spatial factors. The result is, variables proportion of married people, rate of disease, and population size are related significantly to UR. In all three regions, the Hotspot of unemployed will also be detected districts/cities using Spatial Scan Statistics Method. The results are 22 districts/cities as a regional group with the highest unemployed (Most likely cluster) in the study area; 2 districts/cities as a regional group with the highest unemployed in West Java; 1 district/city as a regional groups with the highest unemployed in Central Java; 15 districts/cities as a regional group with the highest unemployed in East Java.

  9. Factors associated with the occurrence of Triatoma sordida (Hemiptera: Reduviidae in rural localities of Central-West Brazil

    Directory of Open Access Journals (Sweden)

    Juliana Chedid Nogared Rossi

    2015-04-01

    Full Text Available This study estimates the factors of artificial environments (houses and peridomestic areas associated with Triatoma sordida occurrence. Manual searches for triatomines were performed in 136 domiciliary units (DUs in two rural localities of Central-West Brazil. For each DU, 32 structural, 23 biotic and 28 management variables were obtained. Multiple logistic regression analysis was performed in order to identify statistically significant variables associated with occurrence of T. sordida in the study areas. A total of 1,057 specimens (99% in peridomiciles, mainly chicken coops of T. sordida were collected from 63 DUs (infestation: 47%; density: ~8 specimens/DU; crowding: ~17 specimens/infested DU; colonisation: 81%. Only six (0.6% out of 945 specimens examined were infected with Trypanosoma cruzi. The final adjusted logistic regression model indicated that the probability of T. sordida occurrence was higher in DU with wooden chicken coops, presence of > 30 animals in wooden corrals, presence of wood piles and presence of food storeroom. The results show the persistence of T. sordida in peridomestic habitats in rural localities of Central-West Brazil. However, the observed low intradomestic colonisation and minimal triatomine infection rates indicate that T. sordida has low potential to sustain high rates of T. cruzi transmission to residents of these localities.

  10. Associations between women's perceptions of domestic violence and contraceptive use in seven countries in West and Central Africa.

    Science.gov (United States)

    Olorunsaiye, Comfort Z; Brunner Huber, Larissa; Laditka, Sarah B; Kulkarni, Shanti; Boyd, A Suzanne

    2017-10-01

    This study examined associations of women's attitudes toward domestic violence (DV) and contraceptive use in West and Central Africa. We used data from the Multiple Indicator Cluster Surveys for women in seven countries in West and Central Africa (2009-2011, n=80,055). We measured contraceptive use as none, traditional, or modern contraceptives. DV approval was measured as no, low, or high tolerance of wife beating. Multinomial logistic regression estimated odds of using traditional or modern methods versus none, adjusting for age, education, wealth, residence, parity, marital structure, spousal age-difference, and religion. Many women had no or low DV tolerance (41%, 44%, respectively); most used no contraception (81%). In adjusted results, women with low DV tolerance had lower odds of using traditional contraceptive methods (odds ratio, OR=0.87; 95% confidence interval, CI: 0.78-0.98) or modern methods (OR=0.86; 95% CI: 0.78-0.95) compared to women with no tolerance. Women with high DV tolerance had 28% lower odds of traditional contraceptive use (95% CI: 0.60-0.90), and 38% lower odds of modern contraceptive use (95% CI: 0.59-0.88) compared to women with no tolerance. The high prevalence of DV approval may threaten the success of programs aimed at improving women's reproductive health, including contraceptive use. Copyright © 2017 Elsevier B.V. All rights reserved.

  11. Public health implications of 4 decades of neoliberal policy: a qualitative case study from post-industrial west central Scotland.

    Science.gov (United States)

    Garnham, L M

    2017-12-01

    The UK has long had a strong commitment to neoliberal policy, the risks of which for population health are well researched. Within Europe, Scotland demonstrates especially poor health outcomes, much of which is driven by high levels of deprivation, wide inequalities and the persistent impacts of deindustrialisation. The processes through which neoliberalism has contributed to this poor health record are the subject of significant research interest. Qualitative case study of a post-industrial town in west central Scotland. Primary data were collected using photovoice (11) and oral history (9) interviews, supplemented by qualitative and quantitative secondary source data. For those who fared poorly after the initial introduction of neoliberal policy in the 1970s, subsequent policy decisions have served to deepen and entrench negative impacts on the determinants of health. Neoliberalism has constituted a suite of rapidly and concurrently implemented policies, cross-cutting a variety of domains, which have reached into every part of people's lives. In formerly industrial parts of west central Scotland, policy developments since the 1970s have generated multiple and sustained forms of deprivation. This case study suggests that a turn away from neoliberal policy is required to improve quality of life and health. © The Author 2017. Published by Oxford University Press on behalf of Faculty of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com

  12. Changes in Intense Precipitation Events in West Africa and the central U.S. under Global Warming

    Energy Technology Data Exchange (ETDEWEB)

    Cook, Kerry H. [Univ. of Texas, Austin, TX (United States); Vizy, Edward [Univ. of Texas, Austin, TX (United States)

    2016-02-08

    The purpose of the proposed project is to improve our understanding of the physical processes and large-scale connectivity of changes in intense precipitation events (high rainfall rates) under global warming in West Africa and the central U.S., including relationships with low-frequency modes of variability. This is in response to the requested subject area #2 “simulation of climate extremes under a changing climate … to better quantify the frequency, duration, and intensity of extreme events under climate change and elucidate the role of low frequency climate variability in modulating extremes.” We will use a regional climate model and emphasize an understanding of the physical processes that lead to an intensification of rainfall. The project objectives are as follows: 1. Understand the processes responsible for simulated changes in warm-season rainfall intensity and frequency over West Africa and the Central U.S. associated with greenhouse gas-induced global warming 2. Understand the relationship between changes in warm-season rainfall intensity and frequency, which generally occur on regional space scales, and the larger-scale global warming signal by considering modifications of low-frequency modes of variability. 3. Relate changes simulated on regional space scales to global-scale theories of how and why atmospheric moisture levels and rainfall should change as climate warms.

  13. Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Medina County, Ohio, through southwestern and south-central Pennsylvania to Hampshire County, West Virginia

    Science.gov (United States)

    Ryder, Robert T.; Harris, Anita G.; Repetski, John E.; revised and digitized by Crangle, Robert D.

    2003-01-01

    A 275-mi-long restored stratigraphic cross section from Medina County, Ohio, through southwestern and south-central Pennsylvania to Hampshire County, W. Va., provides new details on Cambrian and Ordovician stratigraphy in the central Appalachian basin and the structure of underlying Precambrian basement rocks. From west to east, the major structural elements of the block-faulted basement in this section are (1) the relatively stable, slightly extended craton, which includes the Wooster arch, (2) the fault-controlled Ohio-West Virginia hinge zone, which separates the craton from the adjoining Rome trough, (3) the Rome trough, which consists of an east-facing asymmetric graben and an overlying sag basin, and (4) a positive fault block, named here the South-central Pennsylvania arch, which borders the eastern margin of the graben part of the Rome trough. Pre-Middle Ordovician structural relief on Precambrian basement rocks across the down-to-the-west normal fault that separates the Rome trough and the adjoining South-central Pennsylvania arch amounted to between 6,000 and 7,000 ft. The restored cross section shows eastward thickening of the Cambrian and Ordovician sequence from about 3,000 ft near the crest of the Wooster arch at the western end of the section to about 5,150 ft at the Ohio-West Virginia hinge zone adjoining the western margin of the Rome trough to about 19,800 ft near the depositional axis of the Rome trough. East of the Rome trough, at the adjoining western edge of the South-central Pennsylvania arch, the Cambrian and Ordovician sequence thins abruptly to about 13,500 ft and then thins gradually eastward across the arch to about 12,700 ft near the Allegheny structural front and to about 10,150 ft at the eastern end of the restored section. In general, the Cambrian and Ordovician sequence along this section consists of four major lithofacies that are predominantly shallow marine to peritidal in origin. In ascending stratigraphic order, the lithofacies

  14. Contamination of arctic Fjord sediments by Pb-Zn mining at Maarmorilik in central West Greenland

    DEFF Research Database (Denmark)

    Perner, Kerstin; Leipe, Thomas; Dellwig, O

    2010-01-01

    This study focuses on heavy metal contamination of arctic sediments from a small Fjord system adjacent to the Pb-Zn "Black Angel" mine (West Greenland) to investigate the temporal and spatial development of contamination and to provide baseline levels before the mines re-opening in January 2009....... Maximum contents were found at 12 cm depth in Affarlikassaa. After 17 years the mine last closed, specific local hydrographic conditions continue to disperse heavy metal enriched material derived from the Affarlikassaa into Qaumarujuk. Total Hg profiles from multi-cores along the transect clearly...

  15. Mount Sinai Hospital's approach to Ontario's Health System Funding Reform.

    Science.gov (United States)

    Chalk, Tyler; Lau, Davina; Morgan, Matthew; Dietrich, Sandra; Beduz, Mary Agnes; Bell, Chaim M

    2014-01-01

    In April 2012, the Ontario government introduced Health System Funding Reform (HSFR), a transformational shift in how hospitals are funded. Mount Sinai Hospital recognized that moving from global funding to a "patient-based" model would have substantial operational and clinical implications. Adjusting to the new funding environment was set as a top corporate priority, serving as the strategic basis for re-examining and redesigning operations to further improve both quality and efficiency. Two years into HSFR, this article outlines Mount Sinai Hospital's approach and highlights key lessons learned. Copyright © 2014 Longwoods Publishing.

  16. The integration of gravity, magnetic and seismic data in delineating the sedimentary basins of northern Sinai and deducing their structural controls

    Science.gov (United States)

    Selim, El Sayed Ibrahim

    2016-01-01

    The Sinai Peninsula is a part of the Sinai sub-plate that located between the southeast Nubian-Arabian shield and the southeastern Mediterranean northward. The main objectives of this investigation are to deduce the main sedimentary basin and its subdivisions, identify the subsurface structural framework that affects the study area and determine the thickness of sedimentary cover of the basement surface. The total intensity magnetic map, Bouguer gravity map and seismic data were used to achieve the study aims. Structural interpretation of the gravity and magnetic data were done by applying advanced processing techniques. These techniques include; Reduce to the pole (RTP), Power spectrum, Tile derivative and Analytical Signal techniques were applied on gravity and magnetic data. Two dimensional gravity and magnetic modeling and interpretation of seismic sections were done to determine the thickness of sedimentary cover of the study area. The integration of our interpretation suggests that, the northern Sinai area consists of elongated troughs that contain many high structural trends. Four major structural trends have been identified, that, reflecting the influence of district regional tectonic movements. These trends are: (1) NE-SW trend; (2) NNW-SSE trend; (3) ENE-WSW trend and (4) WNW-ESE trend. There are also many minor trends, E-W, NW-SE and N-S structural trends. The main sedimentary basin of North Sinai is divided into four sub-basins; (1) Northern Maghara; (2) Northeastern Sinai; (3) Northwestern Sinai and (4) Central Sinai basin. The sedimentary cover ranges between 2 km and 7 km in the northern part of the study area.

  17. Diagenesis and reservoir properties of Cretaceous-Lower Tertiary sandstones: the GANT-1 well, western Nuussuaq, central West Greenland

    Energy Technology Data Exchange (ETDEWEB)

    Kierkegaard, Thomas

    1998-08-01

    The main purpose of this study is to describe the diagenetic alterations occurring in the Cretaceous to Lower Paleocene sedimentary succession of the GANT-1 well, and to determine the diagenetic and detrital factors which control present porosity and permeability. The GANT-1 well is located on north-western Nuussuaq, central West Greenland. The West Greenland margin is a continental margin subdivided into linked basins where Cretaceous to Lower Tertiary and probably older sediments have been deposited. In the Nuussuaq area these sediments are overlain by a succession of Early Tertiary basaltic volcanic rocks which reaches a combined thickness of around 2-2.5 km. Although the reservoir properties of the sandstone intervals in the GANT-1 and GANE-1 wells are generally relatively poor, it is suggested that moderate to good properties may be found in certain intervals within the Maastrichtian-Paleocene succession. However, the reason for the locally enhanced reservoir properties in GANT-1 was not clarified by this study due to the lack of regional petrographical data. (EG) EFP-96. 41 refs., 3 maps

  18. Policies to improve the local impact from hydrocarbon extraction: Observations on West Africa and possible lessons for Central Asia

    International Nuclear Information System (INIS)

    Klueh, Ulrich H.; Pastor, Gonzalo; Segura, Alonso

    2009-01-01

    The paper offers specific inputs to the debate on local content promotion in the oil industries of West Africa and Central Asia. To this end, we document the international experience with local content promotion to derive best practices in the field. We then use a case study approach to devise a simple analytical framework for rationalizing the selection of viable sectors for local content promotion, in an attempt to make operational one of the best practice principles (efficiency) developed before. By proposing specific rules regarding the acceptability of a project, the analysis seeks to add rigor and address distortions on localization outcomes from rent-seeking. The emphasis is not on supporting efforts to 'pick winners' and subsidize them through a range of by and large discredited instruments. Rather, the paper focuses on the specific public inputs the government would have to provide to support an otherwise market-driven process

  19. An integrtated approach to the use of Landsat TM data for gold exploration in west central Nevada

    Science.gov (United States)

    Mouat, D. A.; Myers, J. S.; Miller, N. L.

    1987-01-01

    This paper represents an integration of several Landsat TM image processing techniques with other data to discriminate the lithologies and associated areas of hydrothermal alteration in the vicinity of the Paradise Peak gold mine in west central Nevada. A microprocessor-based image processing system and an IDIMS system were used to analyze data from a 512 X 512 window of a Landsat-5 TM scene collected on June 30, 1984. Image processing techniques included simple band composites, band ratio composites, principal components composites, and baseline-based composites. These techniques were chosen based on their ability to discriminate the spectral characteristics of the products of hydrothermal alteration as well as of the associated regional lithologies. The simple band composite, ratio composite, two principal components composites, and the baseline-based composites separately can define the principal areas of alteration. Combined, they provide a very powerful exploration tool.

  20. Prevalence and risk factors of obesity and hypertension among students at a central university in the West Bank.

    Science.gov (United States)

    Tayem, Yasin I; Yaseen, Nagham A; Khader, Wiam T; Abu Rajab, Lama O; Ramahi, Ahmad B; Saleh, Mohammad H

    2012-01-01

    We aimed to determine the prevalence and correlates of obesity and hypertension (HTN) among students at a central university in the West Bank. This cross-sectional study targeted a cohort of 553 students (59.5% males, 40.5% females) aged 17-26 years (median = 21) from Al-Quds University. Body mass index (BMI) and blood pressure (BP) were measured. Participants completed a questionnaire on physical activity, sedentary behavior, dietary factors, smoking and family history of obesity, HTN, and coronary artery disease. The magnitude of correlation was assessed by Spearman's rho (r(s)) and Chi-square tests. The prevalence of overweight was 25% (31.1% males, 15.6% females) and obesity 7.2% (9.4% males, 4% females). Obesity and overweight were associated with family history of obesity in both genders (pinterventional program is urgently needed to control these cardiovascular risk factors in this community.

  1. Mixed-severity fire history at a forest-grassland ecotone in west central British Columbia, Canada.

    Science.gov (United States)

    Harvey, Jill E; Smith, Dan J; Veblen, Thomas T

    2017-09-01

    This study examines spatially variable stand structure and fire-climate relationships at a low elevation forest-grassland ecotone in west central British Columbia, Canada. Fire history reconstructions were based on samples from 92 fire-scarred trees and stand demography from 27 plots collected over an area of about 7 km 2 . We documented historical chronologies of widespread fires and localized grassland fires between AD 1600 and 1900. Relationships between fire events, reconstructed values of the Palmer Drought Severity Index, and annual precipitation were examined using superposed epoch and bivariate event analyses. Widespread fires occurred during warm, dry years and were preceded by multiple anomalously dry, warm years. Localized fires that affected only grassland-proximal forests were more frequent than widespread fires. These localized fires showed a lagged, positive relationship with wetter conditions. The landscape pattern of forest structure provided further evidence of complex fire activity with multiple plots shown to have experienced low-, mixed-, and/or high-severity fires over the last four centuries. We concluded that this forest-grassland ecotone was characterized by fires of mixed severity, dominated by frequent, low-severity fires punctuated by widespread fires of moderate to high severity. This landscape-level variability in fire-climate relationships and patterns in forest structure has important implications for fire and grassland management in west central British Columbia and similar environments elsewhere. Forest restoration techniques such as prescribed fire and thinning are oftentimes applied at the forest-grassland ecotone on the basis that historically high frequency, low-severity fires defined the character of past fire activity. This study provides forest managers and policy makers with important information on mixed-severity fire activity at a low elevation forest-grassland ecotone, a crucial prerequisite for the effective management

  2. Sinai and Norfa chicken diversity revealed by microsatellite markers ...

    African Journals Online (AJOL)

    The present study aimed to outline the population differentiation of Sinai and Norfa chicken, native to Egypt, with microsatellite markers. Twenty microsatellite loci recommended by the Food and Agriculture Organization (FAO) were used. Fifty eight birds were sampled (29 for each strain: 12 males + 17 females). Data were ...

  3. Patterns of resource use by milkweed insects in Sinai | Elbanna ...

    African Journals Online (AJOL)

    Plant morphology and defensive chemistry are related to the insect community of herbivores on Gomphocarpus sinaicus (Boiss.) (Apocynaceae) in Sinai (Egypt). There appears to be significant variation among individual plants in the components of their chemical defences. The different components of the community ...

  4. seasonal dynamics of the Sinai Baton Blue butterfly

    African Journals Online (AJOL)

    BioMAP

    of habitat in fragmented landscapes. ... the persistence of species occupying fragmented landscapes (Hanski & Gilpin 1997). Migration into ...... al Ecology 72: 533-. Sch rvation Biology 12: 284-292. James, M. (2006f) The natural history of the Sinai Baton Blue: the smallest butterfly in the world. Egyptian. Journal of Biology 8: ...

  5. Immigration and emigration in the Sinai Baton Blue butterfly ...

    African Journals Online (AJOL)

    Thus, many estimates of rates of movement are indirect and incomplete, and there is little empirical knowledge of the factors affecting immigration and emigration. I studied intensively a local population of Sinai Baton Blue butterflies in a discrete habitat patch. The study lasted the entire adult flight period, and involved almost ...

  6. Physico - chemical Up-grading studies of uraniferous xenotime mineral from ferruginous siltstone sediments of Um hamd, Um bogma area, sinai, Egypt

    International Nuclear Information System (INIS)

    Abdel-Monem, H.M.; Elassy, I.E.; Bishay, A.F.; El-Kammar, A.M.

    1998-01-01

    The exposed paleozoic deposits at Um Bogma area in west central sinai contain three main units namely; the lower sandstone, the middle carbonate and the upper sandstone. These units are composed of intercalation of clay minerals, sand, carbonate and iron oxides.The upper layers of the lower sandstone and the base of the middle carbonate units contain possible resources of anomalously uraniferous xenotime (YPO 4 ). Xenotime, being preferentially concentrated with the very fine grain sizes, is more abundant in the argillaceous sediments. The associated clay minerals are represented by kaolinite the non-clay minerals include hematite, goethite and quartz.The up-grading of uraniferous xenotime from a bulk head sample assaying 1.44% Y 2 O 3 was performed by collaborative technological processes that include; liquid/liquid separation using two immiscible liquids (CCI 4 and H 2 O) and finally acid leaching. By applying the proposed flowsheet, more than 90% of xenotime is recovered with an assay value of more than 45% Y 2 O 3 . The simplicity of the proposed flowsheet allows it to be adopted to semi-industrial or even industrial purposes

  7. Ethnopharmacological study of medicinal plants used in the treatment of CNS disorders in Sinai Peninsula, Egypt.

    Science.gov (United States)

    Eissa, T A F; Palomino, O M; Carretero, M E; Gómez-Serranillos, M P

    2014-01-01

    To provide ethnopharmacological information on the use of medicinal plants for central nervous system (CNS) disorders in the Sinai Peninsula region (Egypt). To collect, analyze and evaluate the ethnobotanical knowledge about these medicinal plants in the Sinai Peninsula region with 61,000 km (2) and 379,000 inhabitants. Field work was concluded between March 2006 and May 2011, using semi-structured questionnaire with 700 informants (mean age: 59; 100% men) from 117 settlements of 17 Bedouin tribes. Transects walks in wild herbal plant collection areas and bibliographical review on the collected plants were also conducted. The Interview/ Inhabitant index (I/P), relative importance value of the species and informant consensus factor (FIC) were calculated. More than 300 species were traditionally used in folk medicine in the Sinai Peninsula; 101 of these species belonging to 40 families were reported as useful in different CNS disorders. Only 5 species are endemic of the studied area. All different part plants were used, leaves and aerial parts being the most frequent. Most of the remedies were prepared as infusion or decoction, while oral administration was the most common way to be used. Gastrointestinal (67.3%) and respiratory disorders (42.57%) were also reported as frequently treated by Bedouins with herbal remedies. Only a few species were found where the traditional use is supported by pharmacological studies (Acacia nilotica, Achillea fragrantissima, Ajuga iva or Mentha longifolia). No bibliographical references in the scientific literature were found for 22 species (21.78%); finally, several studies were published with different pharmacological activities than those provided by Bedouins. © 2013 The Authors. Published by Elsevier Ireland Ltd All rights reserved.

  8. Frasnian reef and basinal strata of West Central Alberta: A combined sedimentological and biostratigraphic analysis

    Energy Technology Data Exchange (ETDEWEB)

    Weissenberger, J.A.W. (Imperial Oil Resources Ltd., Calgary, AB (Canada))

    1994-03-01

    The depositional history for the Frasnian in the Nordegg area is interpreted and illustrated on cross sections and paleogeographic maps. Carbonate deposition began with the flooding of the West Alberta Arch and the deposition of the upper Swan Hills Formation during the Lower asymmetrica Zone. Transgression in the Middle asymmetrica Zone initiated the basinal Cline Channel and Duvernay Formation shale deposition, while the time equivalent Cooking Lake Formation was deposited on the drowned Swan Hills platform. The overlying lower Leduc Formation shows backstepping and aggradational reef margin stacking patterns. Maximum relief from the carbonate platform to surrounding Duvernay Formation shale during the Upper asymmetrica Zone was 100 m. Aggradation and backstepping was repeated in the Ancyrognathus trianularis Zone, with syndepositional relief reaching 170 m at the Wapiabi Gap reef margin. Platfrom-margin profiles were controlled by physical factors such as dominant wind direction and currents. On the Ram Range the margin backstepped, but then aggraded at Cripple Creek. At Wapiabi Gap, to the north on the Bighorn Range, the margin was dominantly aggradational. Ireton Formation shale deposition was also influenced by currents. In the Lower gigas Zone, the Leduc carbonate platform reached a maximum syndepositional relief at 220 m. A change from dominantly biohermal to biostromal platform margins occurred. A prograding wedge of Ireton Formation shale filled much of the relief in the Cline Channel, while the upper Leduc platform was drowned. Finally, the progradational Nisku Formation was deposited during the Upper gigas Zone. 70 refs., 20 figs.

  9. A Multi-Sensor Approach to Documenting a Large Collapse Sinkhole in West-Central Florida

    Science.gov (United States)

    Collins, L. D.; Kiflu, H. G.; Robinson, T.; Doering, T.; Eilers, D.; Rodgers, M.; Kruse, S.; Landry, S.; Braunmiller, J.; Speed, G.; Gonzalez, J.; McKenzie, R.

    2017-12-01

    The Saxon Lake sinkhole collapse of July 14, 2017 in Land O Lakes, Florida, caused the destruction of two homes and the evacuation of nine additional residences. The sinkhole is slightly oval with dimensions of approximately 51 meters east-west and 42 meters north-south, and it is reportedly 15 meters deep. This is presumably the largest sinkhole to form in Pasco County during the last 30 years. The surface collapse happened rapidly and continued over three days, with slumping and erosion increasing the size. The site is located near two natural lakes in a housing development from the late 1960s. This occurrence is within an area of well-developed karst, with a number of natural lakes. We present preliminary analysis of the sequence of deformation, sinkhole geometry, surrounding subsurface structures, and seismic activity. Data are assembled from terrestrial and aerial LiDAR, UAS survey and PhoDAR modeling, aerial imagery, ground penetrating radar, lake-bottom profiling, and seismic monitoring. Additionally, multi-sensor data were brought together in a Geographic Information Systems (GIS) and included an analysis of georeferenced historic imagery and maps. These spatial data indicate historic land use change and development alterations that included lake shore reconfiguration, canal construction, and connection of lake water systems in the area of impact. Three subsidence reports from the 1980s are also recorded within 500 meters of the collapse.

  10. Trucks in the forest: Industry and recreation share limelight in west central Alberta

    Energy Technology Data Exchange (ETDEWEB)

    Jaremko, D.

    2004-12-06

    Hinton, Alberta, a small town just outside the borders of Jasper National Park is described as an example of how industry and recreational activities combined to save a community after it was threatened with extinction following the closure of the local coal mine some five years ago. The pulp and paper mill, the town's remaining major industry after the coal mine closure, and the more recently arrived oil and gas industry brought new people, and with that a new entrepreneurial spirit into the community, that in addition to reinvigorating the industrial and commercial sectors, has given rise to outdoor recreational business opportunities that were always there, but have been ignored in the past. The principal example is the Edmonton-based Cougar Rock Holdings company, which is planning a $700 million resort on about 1,500 acres some five kilometres west of Hinton, complete with a new 18-hole golf course, spa, several resort hotels and resort lodges, 1,000 condominium apartments and an international mountain village. There is also a brisk sale of land to oil and gas industry service companies desirous to locate in Hinton. Land sales have progressed to the point where industrial land is becoming scarce and development is spilling over to the near-by town of Edson. A further illustration of the pace of development is that one of the regional airlines commenced scheduled daily flights between Edson and Calgary for the very first time.

  11. An assessment of the occupational and environmental health needs in seven Southeastern European and West-Central Asian countries.

    Science.gov (United States)

    Coman, Alexandru; Cherecheş, Răzvan M; Ungureanu, Marius I; Marton-Vasarhelyi, Emanuela O; Valentine, Marissa A; Sabo-Attwood, Tara; Gray, Gregory C

    2015-12-01

    Eastern European and Central Asian countries are undergoing rapid socioeconomic and political reforms. Many old industrial facilities are either abandoned, or use outdated technologies that severely impact the environment. Emerging industries have less regulation than in developed countries and environmental and occupational problems seem to be increasing. Under a US National Institutes of Health pilot grant, we developed an interdisciplinary One Health research network in Southeastern Europe and West-Central Asia to identify environmental and occupational problems. From 2012 to 2014, this GeoHealth Hub engaged 11 academic centers and 16 public health institutions in eight different countries: Albania, Armenia, Georgia, Kazakhstan, Kyrgyzstan, Moldova, Romania, and the United States with a goal of strengthening environmental and occupational research and training capacities. Employing face-to-face interviews and large group meetings, we conducted an evidenced-based needs and opportunities assessment focused on aquatic health, food safety, and zoonotic diseases. Comprehensive reviews of the published literature yielded priority research areas for each of the seven GeoHealth Hub countries including heavy metal and pesticide contamination, tick-borne diseases, rabies, brucellosis, and inadequate public health surveillance. Copyright © 2015 Ministry of Health, Saudi Arabia. Published by Elsevier Ltd. All rights reserved.

  12. An assessment of the occupational and environmental health needs in seven Southeastern European and West-Central Asian countries

    Directory of Open Access Journals (Sweden)

    Alexandru Coman

    2015-12-01

    Full Text Available Eastern European and Central Asian countries are undergoing rapid socioeconomic and political reforms. Many old industrial facilities are either abandoned, or use outdated technologies that severely impact the environment. Emerging industries have less regulation than in developed countries and environmental and occupational problems seem to be increasing. Under a US National Institutes of Health pilot grant, we developed an interdisciplinary One Health research network in Southeastern Europe and West-Central Asia to identify environmental and occupational problems. From 2012 to 2014, this GeoHealth Hub engaged 11 academic centers and 16 public health institutions in eight different countries: Albania, Armenia, Georgia, Kazakhstan, Kyrgyzstan, Moldova, Romania, and the United States with a goal of strengthening environmental and occupational research and training capacities. Employing face-to-face interviews and large group meetings, we conducted an evidenced-based needs and opportunities assessment focused on aquatic health, food safety, and zoonotic diseases. Comprehensive reviews of the published literature yielded priority research areas for each of the seven GeoHealth Hub countries including heavy metal and pesticide contamination, tick-borne diseases, rabies, brucellosis, and inadequate public health surveillance.

  13. Study on Regional Geology and Uranium Mineralization of Schwaner Mountains West and Central Kalimantan

    International Nuclear Information System (INIS)

    Soepradto-Tjokrokardono; Djoko-Soetarno; MS; Liliek-Subiantoro; Retno-Witjahyati

    2004-01-01

    Uranium occurrences indication in Kalimantan has been discovered at metamorphic and granites rocks of Schwaner Mountains as the radioactivity and geochemical anomalies. A regional geology of Schwaner Mountains show a watershed of West and East Kalimantan consist of Pinoh metamorphic rocks that was intruded by tonalitic and granitic batholite. The goal of this study is to observe the mechanism of the Uranium occurrences related to the regional tectonic, metamorphic rocks, tonalite and granitic batholite. Permokarbonaferrous metamorphic rocks as the big masses of roof pendant within tonalite mass. The metamorphic rocks originally as the big masses of roof pendant within tonalite mass. The metamorphic rocks originally derived from sedimentary process that produce a high content of uranium as well as a fine grained volcanic material. This uranium is deposited within neritic facies. Those sediments have been metamorphosed by low grade Abukuma regional metamorphism at the condition about 540 o C and 2000 bar. In early Cretaceous Tonalite of Sep auk intruded the rock and both metamorphics and tonalites. Those rocks were intruded by Late Cretaceous alkalin granite of Sukadana. Those crystalline rocks overlaid by an unconformity-related Kampari and Tebidah Formations that including within Melawi Group of Tertiary age. Uranium mineralization as the centimetric-metric veins related to tectonic N 100 o -110 o E and N 50 o E lineaments. Uranium was interpreted as a volcanic sedimentary origin, than it re mobilized by low grade regional metamorphism process. This enuchment process was carried out by fluor, boron and other metalliferous mineral within hydrothermal solutions of Sukadana granite. (author)

  14. Multiscale habitat suitability index models for priority landbirds in the Central Hardwoods and West Gulf Coastal Plain/Ouachitas Bird Conservation Regions

    Science.gov (United States)

    John M. Tirpak; D. Todd Jones-Farrand; Frank R., III Thompson; Daniel J. Twedt; William B., III Uihlein

    2009-01-01

    Habitat Suitability Index (HSI) models were developed to assess habitat quality for 40 priority bird species in the Central Hardwoods and West Gulf Coastal Plain/Ouachitas Bird Conservation Regions. The models incorporated both site and landscape environmental variables from one of six nationally consistent datasets. Potential habitat was first defined from unique...

  15. A Geochemical Analysis of Rare Earth Elements Associated with Significant Phosphate Deposits of West-Central Florida

    Science.gov (United States)

    Turner, K. M.; Owens, J. D.

    2017-12-01

    Rare earth elements (REEs) such as the lanthanide series as well as yttrium, uranium, and thorium are an important industrial resource for expanding technological sectors; therefore, demand and production will continue to increase. Increased market prices resulting in decreased demand has led to new exploration for REE mineral resources in North America. Phosphorite deposits are being investigated as a possible supply but the overall concentrations, depositional environments, and ages are relatively unexplored. Phosphorite is commonly associated with ocean floor sediment deposition and upwelling; however, it may also form in estuarine and supratidal zones with low wave activity, present along Florida's west coast. Interestingly, it seems that major ancient phosphorite deposits are often, if not always, associated with major icehouse conditions (widespread glaciations) and rarely observed during greenhouse conditions. By analyzing a set of sonic drill cores, spatiotemporal REE concentrations can be better constrained for a wide-age range of the Miocene-Pliocene aged Bone Valley Member of the Peace River Formation, the largest North American phosphate deposit. We present concentrations from a depth-transect of samples collected in West-Central Florida, showing the phosphatic sands and silts of the area are highly enriched sedimentary archives for REE, yielding concentrations up to 200 ppm for some REE. The weathering and transport of igneous and metamorphic minerals from the southern Appalachians to the Florida coast where a series of winnowing events occurred may explain the enrichment seen by our data. Sediment cores showing well-rounded quartz sands, dolomitic silts, teeth, bones, and marine fossils commonly found in a near shore depositional environment support this hypothesis. Previous analysis of phosphate grains, teeth, bones, and bulk sediment indicate REE are not associated with and/or sourcing from biogenic components, but rather entering the lattice

  16. Non-steroidal anti-inflammatory drugs and antibiotics prescription trends at a central west bank hospital.

    Science.gov (United States)

    Tayem, Yasin I; Qubaja, Marwan M; Shraim, Riyad K; Taha, Omar B; Abu Shkheidem, Imadeddin A; Ibrahim, Murad A

    2013-11-01

    We aimed to reliably describe the pattern of outpatient prescription of non-steroidal anti-inflammatory drugs (NSAIDs) and antibiotics (ATBs) at a central hospital in the West Bank, Palestine. This was a retrospective, cross-sectional study investigating a cohort of 2,208 prescriptions ordered by outpatient clinics and the emergency room over one year in Beit Jala Hospital in Bethlehem, West Bank. The orders were analysed for the rate and types of NSAIDs and ATBs utilised, and the appropriateness of these drugs to the diagnosis. Of the total prescriptions, 410 contained NSAIDs (18.6%), including diclofenac (40.2%), low dose aspirin (23.9%), ibuprofen (17.8%) and indomethacin (15.1%). A minority of these prescriptions contained a combination of these agents (2.5%). Only one prescription contained cyclooxyeganse-2 inhibitors (0.2%). The appropriateness of NSAID use to the diagnosis was as follows: appropriate (58.3%), inappropriate (14.4%) and difficult to tell (27.3%). The rate of ATB use was 30.3% (669 prescriptions). The ATBs prescribed were amoxicillin (23.3%), augmentin (14.3%), quinolones (12.7%), first and second generation cephalosporins (9.4% and 12.7%, respectively) and macrolides (7.2%). ATB combinations were identified in 9.4%, with the most common being second-generation cephalopsorins and metronidazole (4.3%). Regarding the appropriateness of prescribing ATBs according to the diagnosis, it was appropriate in 44.8%, inappropriate in 20.6% and difficult to tell in 34.6% of the prescriptions. These findings revealed a relatively large number and inappropriate utilisation of ATBs and NSAIDs. An interventional programme needs to be adopted to reinforce physicians' knowledge of the rational prescription of these agents.

  17. Recent Intermediate Depth Earthquakes in El Salvador, Central Mexico, Cascadia and South-West Japan

    Science.gov (United States)

    Lemoine, A.; Gardi, A.; Gutscher, M.; Madariaga, R.

    2001-12-01

    We studied occurence and source parameters of several recent intermediate depth earthquakes. We concentrated on the Mw=7.7 salvadorian earthquake which took place on January 13, 2001. It was a good example of the high seismic risk associated to such kind of events which occur closer to the coast than the interplate thrust events. The Salvadorian earthquake was an intermediate depth downdip extensional event which occured inside the downgoing Cocos plate, next to the downdip flexure where the dip increases sharply before the slab sinks more steeply. This location corresponds closely to the position of the Mw=5.7 1996 and Mw=7.3 1982 downdip extensional events. Several recent intermediate depth earthquakes occured in subduction zones exhibiting a ``flat slab'' geometry with three distinct flexural bends where flexural stress may be enhanced. The Mw=6.7 Geiyo event showed a downdip extensional mechanism with N-S striking nodal planes. This trend was highly oblique to the trench (Nankai Trough), yet consistent with westward steepening at the SW lateral termination of the SW Japan flat slab. The Mw=6.8 Olympia earthquake in the Cascadia subduction zone occured at the downdip termination of the Juan de Fuca slab, where plate dip increases from about 5o to over 30o. The N-S orientation of the focal planes, parallel to the trench indicated downdip extension. The location at the downdip flexure corresponds closely to the estimated positions of the 1949 M7.1 Olympia and 1965 M6.5 Seattle-Tacoma events. Between 1994 and 1999, in Central Mexico, an unusually high intermediate depth seismicity occured where several authors proposed a flat geometry for the Cocos plate. Seven events of magnitude between Mw=5.9 and Mw=7.1 occured. Three of them were downdip compressional and four where down-dip extensional. We can explain these earthquakes by flexural stresses at down-dip and lateral terminations of the supposed flat segment. Even if intermediate depth earthquakes occurence could

  18. Terrestrial lichen response to partial cutting in lodgepole pine forests on caribou winter range in west-central British Columbia

    Directory of Open Access Journals (Sweden)

    Michaela J. Waterhouse

    2011-09-01

    Full Text Available In west-central British Columbia, terrestrial lichens located in older, lodgepole pine (Pinus contorta forests are important winter forage for woodland caribou (Rangifer tarandus caribou. Clearcut harvesting effectively removes winter forage habitat for decades, so management approaches based on partial cutting were designed to maintain continuous lichen-bearing habitat for caribou. This study tested a group selection system, based on removal of 33% of the forest every 80 years in small openings (15 m diameter, and two irregular shelterwood treatments (whole-tree and stem-only harvesting methods where 50% of the stand area is cut every 70 years in 20 to 30 m diameter openings. The abundance of common terrestrial lichens among the partial cutting and no-harvest treatments was compared across five replicate blocks, pre-harvest (1995 and post-harvest (1998, 2000 and 2004. The initial loss of preferred forage lichens (Cladonia, Cladina, Cetraria and Stereocaulon was similar among harvesting treatments, but there was greater reduction in these lichens in the openings than in the residual forest. After eight years, forage lichens in the group selection treatment recovered to pre-harvest amounts, while lichen in the shelterwood treatments steadily increased from 49 to 57% in 1998 to about 70% of pre-harvest amounts in 2004. Although not part of the randomized block design, there was substantially less lichen in three adjacent clearcut blocks than in the partial cuts. Regression analysis pre- and post-harvest indicated that increased cover of trees, shrubs, herbs, woody debris and logging slash corresponded with decreased forage lichen abundance. In the short-term, forestry activities that minimize inputs of woody debris, control herb and shrub development, and moderate the changes in light and temperatures associated with canopy removal will lessen the impact on lichen. Implementation of stand level prescriptions is only one aspect of caribou habitat

  19. Large quaternary landslides in the central appalachian valley and ridge province near Petersburg, West Virginia

    Science.gov (United States)

    Southworth, C. Scott

    1988-01-01

    Geological mapping and photointerpretation of side-looking airborne radar images and color-infrared aerial photographs reveal two large Quaternary landslides in the Valley and Ridge province of the central Appalachians near Petersburg, W. Va. The Elkhorn Mountain rock avalanche occurs on the thrust-faulted northwestern flank of the Elkhorn Mountain anticlinorium. A minimum of 7 ?? 106 m3 of quartzite colluvium was transported more than 3 km from a 91 m high escarpment of Silurian Tuscarora Quartzite. The extensively vegetated deposit may owe, in part, its transport and weathering to periglacial conditions during the Pleistocene. In contrast, the Gap Mountain rock block slide is a single allochthonous block that is 1.2 km long, 0.6 km wide, and at least 60 m thick. The 43 ?? 106 m3 block is composed of limestone of the Helderberg Group and the Oriskany Sanstone of Early Devonian age. Planar detachment probably occurred along a dissolution bedding plane near the Shriver Chert and the Oriskany Sandstone contact. Failure probably was initiated by downcutting of the South Branch Potomac River during the Pleistocene. Landslides of this magnitude suggest accelerated erosion during periglacial climates in the Pleistocene. The recognition of these large slope failures may provide evidence of paleoclimatic conditions and, thereby, increase our understanding of the geomorphologic development of the Valley and Ridge province. ?? 1988.

  20. Potentiometric surfaces of the intermediate aquifer system, west-central Florida, May, 1993

    Science.gov (United States)

    Mularoni, R.A.

    1994-01-01

    The intermediate aquifer system underlies a 5000-sq-mi area including De Soto, Sarasota, Hardee, Manatee, and parts of Charlotte, Hillsborough, Highlands, and Polk Counties, Florida. It is overlain by the surf@cial aquifer system and underlain by the Floridan aquifer system. The potentiometric surface of the intermediate aquifer system was mapped by determining the altitude of water levels in a network of wells and represented on a map by contours that connect points of equal altitude. This map represents water-level conditions near the end of the spring dry season when ground- water withdrawals for agricultural use were high. The cumulative rainfall for the study area was 4.84 inches above normal for the period from June 1992 to May 1993. Hydrographs for selected wells indicated that the annual and seasonal fluctuations of the water levels were generally large (greater than 15 feet) in the central interior region where water demand for irrigation is high during the fall and spring. Seasonal fluctuations were smaller in the northern recharge area where water use is predominantly for public supply. Water levels measured in May 1993 for the composite intermediate aquifer potentiometric surface were lower than those measured in May or September 1992. A cone of depression exists in the potentiometric surface for the composite aquifer system at Warm Mineral Springs, which is a natural discharge point from this system.

  1. Geology Of Wadi Sidri Radioactive Ocurrences, Western Sinai, Egypt

    OpenAIRE

    El Kassas, I. A. [ابراهيم علي القصاص

    1995-01-01

    Geologic and radiomclric investigations have been carried out in the environs of Wadi Sidri in Western Sinai, applying a combination of various geological, geophysical and gcochcmical techniques. This work revealed the presence of some radioactive anomalies of various intensities, extensions and origin, associated with different rock types. The discovered anomalies arc classified into two main groups of quite different types but they seem to be genetically related to each other. The first typ...

  2. Characterization of Egyptian coal from Sinai using Moessbauer spectroscopy

    International Nuclear Information System (INIS)

    Eissa, N.A.; Abdel Meguid, M.M.; Deriu, A.; Albanese, G.

    1983-08-01

    The presence of iron bearing minerals in coal makes the Moessbauer Spectroscopy (MS) extremely useful for characterization of coals from different localities. In this paper the MS has been applied to characterize Egyptian coal from Sinai (Maghara). The chemical analysis of this coal is given. The MS results showed that pyritic sulphur (pyrite and marcasite) is the only bearing mineral in Egyptian coal. A review is given for the iron bearing minerals in coals from different countries measured by MS. (author)

  3. Hydrothermal uranium deposits containing molybdenum and fluorite in the Marysvale volcanic field, west-central Utah

    Science.gov (United States)

    Cunningham, C.G.; Rasmussen, J.D.; Steven, T.A.; Rye, R.O.; Rowley, P.D.; Romberger, S.B.; Selverstone, J.

    1998-01-01

    Uranium deposits containing molybdenum and fluorite occur in the Central Mining Area, near Marysvale, Utah, and formed in an epithermal vein system that is part of a volcanic/hypabyssal complex. They represent a known, but uncommon, type of deposit; relative to other commonly described volcanic-related uranium deposits, they are young, well-exposed and well-documented. Hydrothermal uranium-bearing quartz and fluorite veins are exposed over a 300 m vertical range in the mines. Molybdenum, as jordisite (amorphous MoS2, together with fluorite and pyrite, increase with depth, and uranium decreases with depth. The veins cut 23-Ma quartz monzonite, 20-Ma granite, and 19-Ma rhyolite ash-flow tuff. The veins formed at 19-18 Ma in a 1 km2 area, above a cupola of a composite, recurrent, magma chamber at least 24 ?? 5 km across that fed a sequence of 21- to 14-Ma hypabyssal granitic stocks, rhyolite lava flows, ash-flow tuffs, and volcanic domes. Formation of the Central Mining Area began when the intrusion of a rhyolite stock, and related molybdenite-bearing, uranium-rich, glassy rhyolite dikes, lifted the fractured roof above the stock. A breccia pipe formed and relieved magmatic pressures, and as blocks of the fractured roof began to settle back in place, flat-lying, concave-downward, 'pull-apart' fractures were formed. Uranium-bearing, quartz and fluorite veins were deposited by a shallow hydrothermal system in the disarticulated carapace. The veins, which filled open spaces along the high-angle fault zones and flat-lying fractures, were deposited within 115 m of the ground surface above the concealed rhyolite stock. Hydrothermal fluids with temperatures near 200??C, ??18OH2O ~ -1.5, ?? -1.5, ??DH2O ~ -130, log fO2 about -47 to -50, and pH about 6 to 7, permeated the fractured rocks; these fluids were rich in fluorine, molybdenum, potassium, and hydrogen sulfide, and contained uranium as fluoride complexes. The hydrothermal fluids reacted with the wallrock resulting in

  4. Violence behavior and factors associated among students of Central-West Brazil.

    Science.gov (United States)

    Castro, Marta de Lima; Cunha, Sergio Souza da; Souza, Delma P Oliveira de

    2011-12-01

    To estimate the prevalence of violence among adolescents and young adults and to identify associated factors. Cross-sectional study carried out in 2008 with systematic random sampling of 699 elementary and high school students enrolled in urban state schools of Barra do Garças, Central-Western Brazil. A self-administered questionnaire was applied in the classrooms without the presence of the teacher. The outcome "violent behavior" was defined as (1) use of firearm or sharp instrument, and/or (2) aggression against oneself and/or others, and/or (3) suicide attempt. The analyzed independent variables were age, gender, socioeconomic status, use of alcohol, use of psychoactive drugs, sexual activity, and relationship between parents. Univariate analysis was conducted, as well as multiple regression adjusted for effect of clustering. Violence prevalence was of 18.6%, varying with age: 10.1% in the group aged 10 and 11 years; 20.2% for those aged 12-19 years; and 4.5% in the group aged 20-21 years. The factors associated with violent behavior were use of alcohol (RP = 2.51, 95%CI 1.22;5.15), use of psychoactive drugs (RP = 2.10, 95%CI 1.61;2.75), male gender (RP = 1.63, 95%CI 1.13;2.35) and unsatisfactory relationship between parents (RP = 1.64, 95%CI 1.25;2.15). Results indicate high prevalence of violence among adolescents in the age group 12-19 years, mainly among users of alcohol and drugs, of the male sex, from families whose parents do not have satisfactory relationships. Although without statistical significance in the final regression model, school result discrepancy and socioeconomic level should be considered in educational actions for prevention of violence behavior among students.

  5. Incidence of cassava mosaic disease and associated whitefly vectors in South West and North Central Nigeria: Data exploration.

    Science.gov (United States)

    Eni, Angela O; Efekemo, Oghenevwairhe P; Soluade, Mojisola G; Popoola, Segun I; Atayero, Aderemi A

    2018-08-01

    Cassava mosaic disease (CMD) is one of the most economically important viral diseases of cassava, an important staple food for over 800 million people in the tropics. Although several Cassava mosaic virus species associated with CMD have been isolated and characterized over the years, several new super virulent strains of these viruses have evolved due to genetic recombination between diverse species. In this data article, field survey data collected from 184 cassava farms in 12 South Western and North Central States of Nigeria in 2015 are presented and extensively explored. In each State, one cassava farm was randomly selected as the first farm and subsequent farms were selected at 10 km intervals, except in locations were cassava farms are sporadically located. In each selected farm, 30 cassava plants were sampled along two diagonals and all selected plant was scored for the presence or absence of CMD symptoms. Cassava mosaic disease incidence and associated whitefly vectors in South West and North Central Nigeria are explored using relevant descriptive statistics, box plots, bar charts, line graphs, and pie charts. In addition, correlation analysis, Analysis of Variance (ANOVA), and multiple comparison post-hoc tests are performed to understand the relationship between the numbers of whiteflies counted, uninfected farms, infected farms, and the mean of symptom severity in and across the States under investigation. The data exploration provided in this data article is considered adequate for objective assessment of the incidence and symptom severity of cassava mosaic disease and associated whitefly vectors in farmers' fields in these parts of Nigeria where cassava is heavily cultivated.

  6. Transitive Business Model of Management in Central Europe – Torn between East and West

    Directory of Open Access Journals (Sweden)

    Artur K. MODLIŃSKI

    2013-06-01

    Full Text Available The objective of the article is to present the internal and external model of management and how it is connected to the political system and national culture among the Visegrad countries.  The  paper  presents  several  examples  of  transitive models of management. It aims to indicate which advantages and disadvantages can be  identified  in  the  transitive  groups,  how  they  can  influences  the  international investment potential and image of the company. Qualitative research on asample of Polish, German and Ukrainian companies combined with secondary data. Polish business culture can be regarded as transitive –the influence of two bordering civilization (Western and Orthodox is noticeable. This phenomenon has shaped the business values and it is still present in the international context. The  transitive  business  model  of  management allows  to  predict  and  avoid  the  problems  occurring  in  the  internal  and  external relationships  in  the  companies  from  Central  Europe  who  are  involved  into international projects. The  paper  enables  the  clarification  of  the  transitive management  culture;  the  juxtaposition  of  differences  and  similarities  and  their impacts  of  the  internal  and  external  business  relationships;  the  explicitness  of dichotomy and its influence on international business image of Visegrad countries.

  7. Calibration of hydroclimate proxies in freshwater bivalve shells from Central and West Africa

    Science.gov (United States)

    Kelemen, Zita; Gillikin, David P.; Graniero, Lauren E.; Havel, Holly; Darchambeau, François; Borges, Alberto V.; Yambélé, Athanase; Bassirou, Alhou; Bouillon, Steven

    2017-07-01

    Freshwater bivalve shell oxygen and carbon stable isotope ratios (δ18O, δ13C) may act as recorders of hydroclimate (e.g., precipitation-evaporation balance, discharge) and aquatic biogeochemistry. We investigate the potential of these hydroclimate proxies measured along the growth axis of shells collected from the Oubangui River (Bangui, Central African Republic) and the Niger River (Niamey, Niger). Biweekly water samples and in situ measurements collected over several years, along with daily discharge data from both sites allowed a direct comparison with proxies recorded in the shells. Data from a total of 14 unionid shells, including three species (Chambardia wissmanni, Aspatharia dahomeyensis, and Aspatharia chaiziana), confirmed that shells precipitate carbonate in oxygen isotope equilibrium with ambient water. Because water temperature variations were small, shell δ18O values (δ18Oshell) also accurately record the seasonality and the range observed in water δ18O (δ18Ow) values when calculated using an average temperature. Calculated δ18Ow values were in good agreement over the entire record of measured δ18Ow values, thus δ18Oshell records can be reliably used to reconstruct past δ18Ow values. Discharge and δ18Ow values from both rivers fit a logarithmic relationship, which was used to attempt reconstruction of past hydrological conditions, after calculating δ18Ow values from δ18Oshell values. A comparison with measured discharge data suggests that for the two rivers considered, δ18Oshell data are good proxies for recording discharge conditions during low(er) discharge levels, but that high discharge values cannot be accurately reconstructed due to the large scatter in the discharge-δ18Ow relationship. Moreover, periods of bivalve shell growth cessation due to high turbidity or air exposure should be taken into account. While δ13C values of dissolved inorganic carbon in both rivers showed clear seasonality and correlated well with discharge

  8. Spatial and temporal variations of wave energy in the nearshore waters of the central west coast of India

    Science.gov (United States)

    Amrutha, M. M.; Sanil Kumar, V.

    2016-12-01

    Assessment of wave power potential at different water depths and time is required for identifying a wave power plant location. This study examines the variation in wave power off the central west coast of India at water depths of 30, 9 and 5 m based on waverider buoy measured wave data. The study shows a significant reduction ( ˜ 10 to 27 %) in wave power at 9 m water depth compared to 30 m and the wave power available at 5 m water depth is 20 to 23 % less than that at 9 m. At 9 m depth, the seasonal mean value of the wave power varied from 1.6 kW m-1 in the post-monsoon period (ONDJ) to 15.2 kW m-1 in the Indian summer monsoon (JJAS) period. During the Indian summer monsoon period, the variation of wave power in a day is up to 32 kW m-1. At 9 m water depth, the mean annual wave power is 6 kW m-1 and interannual variations up to 19.3 % are observed during 2009-2014. High wave energy ( > 20 kW m-1) at the study area is essentially from the directional sector 245-270° and also 75 % of the total annual wave energy is from this narrow directional sector, which is advantageous while aligning the wave energy converter.

  9. Brucellosis in West and Central Africa: A review of the current situation in a changing landscape of dairy cattle systems.

    Science.gov (United States)

    Craighead, L; Meyer, A; Chengat, B; Musallam, I; Akakpo, J; Kone, P; Guitian, J; Häsler, B

    2018-03-01

    Brucellosis is a neglected endemic zoonosis in West and Central Africa. In this narrative review, evidence of livestock and human infection is presented along with details of past and current control strategies in 14 selected countries. Data from available literature is combined with expert opinion elicited during a regional workshop on brucellosis diagnostics. Demographic changes that affect both the epidemiology of brucellosis and the success of control or surveillance are also considered. The evidence suggests that brucellosis prevalence in emerging peri-urban dairy cattle systems may be higher than that found in traditional transhumant extensive systems. Accurate microbiological and epidemiological evidence across the region is lacking but it appears there is inherent interest in controlling the disease. There are many data gaps which require collaborative future research to evaluate fully the social and economic impact of the disease in an evolving livestock sector heavily influenced by high rates of urbanisation and regional population growth. Crown Copyright © 2017. Published by Elsevier B.V. All rights reserved.

  10. Simulation of the Lower Walker River Basin hydrologic system, west-central Nevada, using PRMS and MODFLOW models

    Science.gov (United States)

    Allander, Kip K.; Niswonger, Richard G.; Jeton, Anne E.

    2014-01-01

    Walker Lake is a terminal lake in west-central Nevada with almost all outflow occurring through evaporation. Diversions from Walker River since the early 1900s have contributed to a substantial reduction in flow entering Walker Lake. As a result, the lake is receding, and salt concentrations have increased to a level in which Oncorhynchus clarkii henshawi (Lahontan Cutthroat trout) are no longer present, and the lake ecosystem is threatened. Consequently, there is a concerted effort to restore the Walker Lake ecosystem and fishery to a level that is more sustainable. However, Walker Lake is interlinked with the lower Walker River and adjacent groundwater system which makes it difficult to understand the full effect of upstream water-management actions on the overall hydrologic system including the lake level, volume, and dissolved-solids concentrations of Walker Lake. To understand the effects of water-management actions on the lower Walker River Basin hydrologic system, a watershed model and groundwater flow model have been developed by the U.S. Geological Survey in cooperation with the Bureau of Reclamation and the National Fish and Wildlife Foundation.

  11. A digital model for planning water management at Benton Lake National Wildlife Refuge, west-central Montana

    Science.gov (United States)

    Nimick, David A.; McCarthy, Peter M.; Fields, Vanessa

    2011-01-01

    Benton Lake National Wildlife Refuge is an important area for waterfowl production and migratory stopover in west-central Montana. Eight wetland units covering about 5,600 acres are the essential features of the refuge. Water availability for the wetland units can be uncertain owing to the large natural variations in precipitation and runoff and the high cost of pumping supplemental water. The U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service, has developed a digital model for planning water management. The model can simulate strategies for water transfers among the eight wetland units and account for variability in runoff and pumped water. This report describes this digital model, which uses a water-accounting spreadsheet to track inputs and outputs to each of the wetland units of Benton Lake National Wildlife Refuge. Inputs to the model include (1) monthly values for precipitation, pumped water, runoff, and evaporation; (2) water-level/capacity data for each wetland unit; and (3) the pan-evaporation coefficient. Outputs include monthly water volume and flooded surface area for each unit for as many as 5 consecutive years. The digital model was calibrated by comparing simulated and historical measured water volumes for specific test years.

  12. Magnitude and frequency of flooding on small urban watersheds in the Tampa Bay area, west-central Florida

    Science.gov (United States)

    Lopez, M.A.; Woodham, W.M.

    1983-01-01

    Hydrologic data collected on nine small urban watersheds in the Tampa Bay area of west-central Florida and a method for estimating peak discharges in the study area are described. The watersheds have mixed land use and range in size from 0.34 to 3.45 square miles. Watershed soils, land use, and storm-drainage system data are described. Urban development ranged from a sparsely populated area with open-ditch storm sewers and 19% impervious area to a completely sewered watershed with 61% impervious cover. The U.S. Geological Survey natural-basin and urban-watershed models were calibrated for the nine watersheds using 5-minute interval rainfall data from the Tampa, Florida, National Weather Service rain gage to simulate annual peak discharge for the period 1906-52. A log-Pearson Type III frequency analysis of the simulated annual maximum discharge was used to determine the 2-, 5-, 10-, 25-, 50-, and 100-year flood discharges for each watershed. Flood discharges were related in a multiple-linear regression to drainage area, channel slope, detention storage area, and an urban-development factor determined by the extent of curb and gutter street drainage and storm-sewer system. The average standard error for the regional relations ranged from + or - 32 to + or - 42%. (USGS)

  13. The west-central Florida inner shelf and coastal system: A geologic conceptual overview and introduction to the special issue

    Science.gov (United States)

    Hine, A.C.; Brooks, G.R.; Davis, R.A.; Duncan, D.S.; Locker, S.D.; Twichell, D.C.; Gelfenbaum, G.

    2003-01-01

    This paper provides an overview for this special publication on the geologic framework of the inner shelf and coastal zone of west-central Florida. This is a significant geologic setting in that it lies at the center of an ancient carbonate platform facing an enormous ramp that has exerted large-scale control on coastal geomorphology, the availability of sediments, and the level of wave energy. In order to understand the Holocene geologic history of this depositional system, a regional study defined by natural boundaries (north end of a barrier island to the apex of a headland) was undertaken by a group of government and university coastal geologists using a wide variety of laboratory and field techniques. It is the purpose of this introductory paper to define the character of this coastal/inner shelf system, provide a historical geologic perspective and background of environmental information, define the overall database, present the collective objectives of this regional study, and very briefly present the main aspects of each contribution. Specific conclusions are presented at the end of each paper composing this volume. ?? 2003 Elsevier B.V. All rights reserved.

  14. Alfalfa nutritive quality for ruminant livestock as influenced by ambient air quality in west-central Alberta

    International Nuclear Information System (INIS)

    Lin, J.C.; Nosal, M.; Muntifering, R.B.; Krupa, S.V.

    2007-01-01

    Alfalfa (Medicago sativa) nutritive quality response to ambient ozone (O 3 ), sulfur dioxide (SO 2 ) and oxides of nitrogen (NO x ) were assessed at three locations in west-central Alberta, Canada (1998-2002). Yield data were segregated into high and low relative to overall median yield. Ozone concentrations (hourly median and 95th-percentile) and precipitation (P) contributed 69 and 29%, respectively, to the variability in crude protein (CP) concentration in low-yielding alfalfa, whereas mean temperature (T) and relative humidity (RH) collectively influenced 98% of the variation in CP in high-yielding alfalfa. Three-fourths of the accounted variation in relative feed value (RFV) of low-yielding alfalfa was attributable to P, T and RH, whereas median and 95th-percentile hourly O 3 concentrations and SO 2 and NO x exposure integrals contributed 25%. In contrast, air quality, (mainly O 3 ) influenced 86% of the accounted variation in RFV of high-yielding alfalfa, and T and P collectively contributed 14%. - Exposure to ambient concentrations of phytotoxic air pollutants affected nutritive quality of alfalfa for ruminant livestock in a yield-dependent manner

  15. Alfalfa nutritive quality for ruminant livestock as influenced by ambient air quality in west-central Alberta

    Energy Technology Data Exchange (ETDEWEB)

    Lin, J.C. [Department of Animal Sciences, Auburn University, Auburn, AL 36849 (United States); Nosal, M. [Department of Mathematics and Statistics, University of Calgary, Calgary, AB T2N 1N4 (Canada); Muntifering, R.B. [Department of Animal Sciences, Auburn University, Auburn, AL 36849 (United States)]. E-mail: muntirb@auburn.edu; Krupa, S.V. [Department of Plant Pathology, University of Minnesota, St. Paul, MN 55108 (United States)

    2007-09-15

    Alfalfa (Medicago sativa) nutritive quality response to ambient ozone (O{sub 3}), sulfur dioxide (SO{sub 2}) and oxides of nitrogen (NO {sub x} ) were assessed at three locations in west-central Alberta, Canada (1998-2002). Yield data were segregated into high and low relative to overall median yield. Ozone concentrations (hourly median and 95th-percentile) and precipitation (P) contributed 69 and 29%, respectively, to the variability in crude protein (CP) concentration in low-yielding alfalfa, whereas mean temperature (T) and relative humidity (RH) collectively influenced 98% of the variation in CP in high-yielding alfalfa. Three-fourths of the accounted variation in relative feed value (RFV) of low-yielding alfalfa was attributable to P, T and RH, whereas median and 95th-percentile hourly O{sub 3} concentrations and SO{sub 2} and NO {sub x} exposure integrals contributed 25%. In contrast, air quality, (mainly O{sub 3}) influenced 86% of the accounted variation in RFV of high-yielding alfalfa, and T and P collectively contributed 14%. - Exposure to ambient concentrations of phytotoxic air pollutants affected nutritive quality of alfalfa for ruminant livestock in a yield-dependent manner.

  16. A 900-year pollen-inferred temperature and effective moisture record from varved Lake Mina, west-central Minnesota, USA

    Science.gov (United States)

    St. Jacques, Jeannine-Marie; Cumming, Brian F.; Smol, John P.

    2008-04-01

    Drought is endemic to the North American Great Plains, causing severe economic consequences. However, instrumental climate data only exist from ca AD 1890, and limited tree-ring, paleolimnological, archeological and eolian records document the last two millennia. To address this lack of monitoring and paleoclimatic data, the pollen preserved in the varved sediments of Lake Mina, Minnesota, on the northeastern border of the Great Plains, were analyzed. May and February mean monthly temperatures and "annual precipitation minus potential evapotranspiration" were reconstructed at a 4-year resolution using a pre-settlement pollen-climate calibration set. The period of the so-called Little Ice Age (LIA) (AD 1500-1870) was colder than the Medieval Climate Anomaly (MCA) (AD 1100-1500) in west-central Minnesota. Winter temperatures in the LIA declined more than summer ones. The pollen record suggests that the LIA occurred in three phases: an initial cold phase from AD 1505 to AD 1575, a warmer phase, and then a very cold phase from AD 1625 to AD 1775. There were severe droughts detected in the Lake Mina record from AD 1660 to AD 1710 and AD 1300 to AD 1400, suggesting that high-resolution pollen records can detect events previously defined from the tree-ring records. This latter century-scale drought is concurrent with the widely reported "AD 1250-1400 mega-drought", which exceeds the severity of 20th century droughts.

  17. Municipal solid-waste disposal and ground-water quality in a coastal environment, west-central Florida

    Science.gov (United States)

    Fernandez, Mario

    1983-01-01

    Solid waste is defined along with various methods of disposal and the hydrogeologic factors to be considered when locating land-fills is presented. Types of solid waste, composition, and sources are identified. Generation of municipal solid waste in Florida has been estimated at 4.5 pounds per day per person or about 7.8 million tons per year. Leachate is generated when precipitation and ground water percolate through the waste. Gases, mainly carbon dioxide and methane, are also produced. Leachate generally contains high concentrations of dissolved organic and inorganic matter. The two typical hydrogeologic conditions in west-central Florida are (1) permeable sand overlying clay and limestone and (2) permeable sand overlying limestone. These conditions are discussed in relation to leachate migration. Factors in landfill site selection are presented and discussed, followed by a discussion on monitoring landfills. Monitoring of landfills includes the drilling of test holes, measuring physical properties of the corings, installation of monitoring wells, and water-quality monitoring. (USGS)

  18. Shifting shoals and shattered rocks : How man has transformed the floor of west-central San Francisco Bay

    Science.gov (United States)

    Chin, John L.; Wong, Florence L.; Carlson, Paul R.

    2004-01-01

    subembayments--north bay (San Pablo and Suisun Bays), central bay, and south bay--each characterized by a central area of open water surrounded by intertidal mudflats and marshes. Central bay includes Alcatraz and Angel Islands and also a number of submerged bedrock knobs that protrude through the sediment of the bay floor and rise to within about 40 feet (12 m) of the water surface. The most prominent of these are Harding, Shag, Arch, and Blossom Rocks. These rocks have been lowered by blasting several times in the past, but they remain a potential hazard to shipping because newer cargo vessels are designed with increasingly deeper drafts. Central bay's location adjacent to two major population and commerce centers, San Francisco and Oakland, subjects it to greater human influences than less developed parts of the estuary. The western part of central San Francisco Bay is adjacent to the Golden Gate, the estuary's outlet to the Pacific Ocean. The changing submarine topography of the west-central bay, as well as its geology, form the main focus of this book.

  19. The Genetic Contribution of West-African Ancestry to Protection against Central Obesity in African-American Men but Not Women: Results from the ARIC and MESA Studies.

    Science.gov (United States)

    Klimentidis, Yann C; Arora, Amit; Zhou, Jin; Kittles, Rick; Allison, David B

    2016-01-01

    Over 80% of African-American (AA) women are overweight or obese. A large racial disparity between AA and European-Americans (EA) in obesity rates exists among women, but curiously not among men. Although socio-economic and/or cultural factors may partly account for this race-by-sex interaction, the potential involvement of genetic factors has not yet been investigated. Among 2814 self-identified AA in the Atherosclerosis Risk in Communities study, we estimated each individual's degree of West-African genetic ancestry using 3437 ancestry informative markers. We then tested whether sex modifies the association between West-African genetic ancestry and body mass index (BMI), waist-circumference (WC), and waist-to-hip ratio (WHR), adjusting for income and education levels, and examined associations of ancestry with the phenotypes separately in males and females. We replicated our findings in the Multi-Ethnic Study of Atherosclerosis (n = 1611 AA). In both studies, we find that West-African ancestry is negatively associated with obesity, especially central obesity, among AA men, but not among AA women (pinteraction = 4.14 × 10(-5) in pooled analysis of WHR). In conclusion, our results suggest that the combination of male gender and West-African genetic ancestry is associated with protection against central adiposity, and suggest that the large racial disparity that exists among women, but not men, may be at least partly attributed to genetic factors.

  20. Sinai Trafficking: Origin and Definition of a New Form of Human Trafficking

    Directory of Open Access Journals (Sweden)

    Mirjam van Reisen

    2015-02-01

    Full Text Available The phenomenon that is coined “Sinai Trafficking” started in 2009 in the Sinai desert. It involves the abduction, extortion, sale, torture, sexual violation and killing of men, women and children. Migrants, of whom the vast majority are from Eritrean descent, are abducted and brought to the Sinai desert, where they are sold and resold, extorted for very high ransoms collected by mobile phone, while being brutally and “functionally” tortured to support the extortion. Many of them die in Sinai. Over the last five years broadcasting stations, human rights organisations and academics have reported on the practices in the Sinai and some of these reports have resulted in some confusion on the modus operandi. Based on empirical research by the authors and the analysis of data gathered in more than 200 recorded interviews with Sinai hostages and survivors on the practices, this article provides a definition of Sinai Trafficking. It argues that the term Sinai Trafficking can be used to differentiate a particular new set of criminal practices that have first been reported in the Sinai Peninsula. The article further examines how the new phenomenon of Sinai Trafficking can be framed into the legal human trafficking definition. The interconnectedness of Sinai Trafficking with slavery, torture, ransom collection, extortion, sexual violence and other severe crimes is presented to substantiate the use of the trafficking framework. The plight of Sinai survivors in Israel and Egypt is explained to illustrate the cyclical process of the trafficking practices especially endured by Eritreans, introduced as the Human Trafficking Cycle. The article concludes by setting out areas for further research.

  1. The Multiplier Effect of the Gandoriah Beach Marine Tourism to the Coastal Community of Kelurahan Pasir, Central Pariaman District, Pariaman City West Sumatra Province

    OpenAIRE

    Mazidah, Nurnaini; Nugroho, Firman; Bathara, Lamun

    2016-01-01

    This research was conducted on March 25, 2016 until 11 April 2016 which is placed in Gandoriah Beach, Kelurahan Pasir, Central Pariaman District, Pariaman City West Sumatra Province. This study aims to identify economic activities and socio-cultural as the impact of the presence of marine tourism and determine the impact of tourism activities on the beach Gandoriah to the economy of coastal communities. The method used in this research is survey method. There are 64 respondents, that consist ...

  2. Bayesian inversion of surface-wave data for radial and azimuthal shear-wave anisotropy, with applications to central Mongolia and west-central Italy

    Science.gov (United States)

    Ravenna, Matteo; Lebedev, Sergei

    2018-04-01

    flow. This is consistent with an upward flow from below the thick lithosphere of the Siberian Craton to below the thinner lithosphere of central Mongolia, likely to give rise to decompression melting and the scattered, sporadic volcanism observed in the Baikal Rift area, as proposed previously. Inversion of phase-velocity data from west-central Italy for azimuthal anisotropy reveals a clear change in the shear-wave fast-propagation direction at 70-100 km depths, near the lithosphere-asthenosphere boundary. The orientation of the fabric in the lithosphere is roughly E-W, parallel to the direction of stretching over the last 10 m.y. The orientation of the fabric in the asthenosphere is NW-SE, matching the fast directions inferred from shear-wave splitting and probably indicating the direction of the asthenospheric flow.

  3. Spatial and temporal variations of wave energy in the nearshore waters of the central west coast of India

    Directory of Open Access Journals (Sweden)

    M. M. Amrutha

    2016-12-01

    Full Text Available Assessment of wave power potential at different water depths and time is required for identifying a wave power plant location. This study examines the variation in wave power off the central west coast of India at water depths of 30, 9 and 5 m based on waverider buoy measured wave data. The study shows a significant reduction ( ∼  10 to 27 % in wave power at 9 m water depth compared to 30 m and the wave power available at 5 m water depth is 20 to 23 % less than that at 9 m. At 9 m depth, the seasonal mean value of the wave power varied from 1.6 kW m−1 in the post-monsoon period (ONDJ to 15.2 kW m−1 in the Indian summer monsoon (JJAS period. During the Indian summer monsoon period, the variation of wave power in a day is up to 32 kW m−1. At 9 m water depth, the mean annual wave power is 6 kW m−1 and interannual variations up to 19.3 % are observed during 2009–2014. High wave energy ( >  20 kW m−1 at the study area is essentially from the directional sector 245–270° and also 75 % of the total annual wave energy is from this narrow directional sector, which is advantageous while aligning the wave energy converter.

  4. Use of radioactive fallout cesium-137 to estimate soil erosion on three farms in west central Ohio

    International Nuclear Information System (INIS)

    Bajracharya, R.M.; Lal, R.; Kimble, J.M.

    1998-01-01

    Assessment of the impact of soil erosion on productivity and environment quality requires comprehensive and credible estimates of erosion. Measuring concentration of 137 Cs fallout is a relatively simple and rapid technique for determining long-term mean annual rates of soil erosion and deposition. The purpose of this study was to evaluate the potential of the 137 Cs activity-soil depth relationship in estimating soil erosion from arable land in west central Ohio. Thus, soil samples obtained from three to four genetic horizons of four erosion phases at three farms in Clark Co., Ohio, (hereafter called Sites A, B, and C) were analyzed for 137 Cs activity. Relationships between 137 Cs activity and soil depth at undisturbed reference sites were used to calculate the depth of soil eroded and mean annual erosion rates. Cumulative 137 Cs activities ranged from 6.8 mBq g-1 for the severely eroded phase at Site C to 16.6 mBq g-1 for the deposition phase at Site A. These activities corresponded to soil erosion rates of 125.9 Mg ha-1 y-1 for severe to 26.6 Mg ha-1 y-1 for deposition phases. A general trend of increasing soil erosion (by 24 to 85%) from slightly to severely eroded phases was observed although the data were highly variable. Estimated soil erosion rates depended on the regression model used and were more than an order of magnitude higher than those determined using the Revised Universal Soil Loss Equation. Sampling rigorously at small depth increments by means of a core sampler, careful selection of reference sites, and calibration or validation of this technique with other models can improve estimation of soil erosion using 137 Cs. The 137 Cs technique is, however, limited to local scale estimates of erosion because the empirical models are site specific

  5. Understanding the Adolescent Gap in HIV Testing Among Clients of Antenatal Care Services in West and Central African Countries.

    Science.gov (United States)

    Helleringer, Stephane

    2017-09-01

    New HIV infections among children have declined significantly more slowly in West and central African countries (WCA) than in eastern and southern African countries between 2009 and 2015. Since adolescent fertility is particularly high in WCA countries, frequent mother-to-child transmission (MTCT) of HIV may in part be due to low coverage of HIV testing among adolescents during antenatal care (ANC). We investigated this adolescent gap in HIV testing using survey data from the demographic and health surveys and multiple indicators cluster surveys collected in 21 WCA countries since 2009. We found significant adolescent gaps in HIV testing in 12 out of 21 WCA countries, with the largest gap observed in Nigeria. In countries with a significant adolescent gap in HIV testing, we used Fairlie decompositions to assess what proportion of these gaps were explained by age-related differences in the distribution of (a) marital status, (b) socioeconomic status (SES), (c) MTCT-related knowledge, and (d) patterns of ANC utilization. Differences in SES and MTCT-related knowledge were the most consistent determinants of adolescent gaps in HIV testing during ANC. Differences in ANC utilization (e.g., fewer and possibly delayed ANC visits) also contributed to the adolescent gap in 8 out of 12 countries. Interventions that improve knowledge of MTCT risks, and/or promote the sustained use of ANC services, could help engage HIV-infected adolescents who become pregnant in PMTCT services. Targeting these interventions at the most disadvantaged households will be crucial in further reducing HIV infections among children.

  6. Prevalence and risk factors of obesity and hypertension among students at a central university in the West Bank

    Directory of Open Access Journals (Sweden)

    Yasin I. Tayem

    2012-10-01

    Full Text Available Objectives : We aimed to determine the prevalence and correlates of obesity and hypertension (HTN among students at a central university in the West Bank. Materials and methods : This cross-sectional study targeted a cohort of 553 students (59.5% males, 40.5% females aged 17–26 years (median = 21 from Al-Quds University. Body mass index (BMI and blood pressure (BP were measured. Participants completed a questionnaire on physical activity, sedentary behavior, dietary factors, smoking and family history of obesity, HTN, and coronary artery disease. The magnitude of correlation was assessed by Spearman's rho (r s and Chi-square tests. Results : The prevalence of overweight was 25% (31.1% males, 15.6% females and obesity 7.2% (9.4% males, 4% females. Obesity and overweight were associated with family history of obesity in both genders (p<0.001 and physical activity in males (r s= − 0.162, p<0.005. No correlation was demonstrated between participants’ BMI and sedentary lifestyle or consumption of fast food. Pre-HTN was detected in 27.1% (38% males, 11.2% females and HTN in 2.2% (3.3% males, 0.4% females. Pre-HTN and HTN were associated with obesity (r s=0.252, p<0.001 and smoking (p<0.05. No relationship was detected between students’ BP and sedentary behavior, family history of HTN/CAD, or consumption of fast food. The prevalence of increased BMI and BP among males was significantly higher than females (p<0.001. Conclusions : We detected a high prevalence of elevated BP and excess weight gain among students at Al-Quds University. An interventional program is urgently needed to control these cardiovascular risk factors in this community.

  7. Radionuclide migration pathways analysis for the Oak Ridge Central Waste Disposal Facility on the West Chestnut Ridge site

    International Nuclear Information System (INIS)

    Pin, F.G.; Witherspoon, J.P.; Lee, D.W.; Cannon, J.B.; Ketelle, R.H.

    1984-10-01

    A dose-to-man pathways analysis is performed for disposal of low-level radioactive waste at the Central Waste Disposal Facility on the West Chestnut Ridge Site. Both shallow land burial (trench) and aboveground (tumulus) disposal methods are considered. The waste volumes, characteristics, and radionuclide concentrations are those of waste streams anticipated from the Oak Ridge National Laboratory, the Y-12 Plant, and the Oak Ridge Gaseous Diffusion Plant. The site capacity for the waste streams is determined on the basis of the pathways analysis. The exposure pathways examined include (1) migration and transport of leachate from the waste disposal units to the Clinch River (via the groundwater medium for trench disposal and Ish Creek for tumulus disposal) and (2) those potentially associated with inadvertent intrusion following a 100-year period of institutional control: an individual resides on the site, inhales suspended particles of contaminated dust, ingests vegetables grown on the plot, consumes contaminated water from either an on-site well or from a nearby surface stream, and receives direct exposure from the contaminated soil. It is found that either disposal method would provide effective containment and isolation for the anticipated waste inventory. However, the proposed trench disposal method would provide more effective containment than tumuli because of sorption of some radionuclides in the soil. Persons outside the site boundary would receive radiation doses well below regulatory limits if they were to ingest water from the Clinch River. An inadvertent intruder could receive doses that approach regulatory limits; however, the likelihood of such intrusions and subsequent exposures is remote. 33 references, 31 figures, 28 tables

  8. Factors affecting fall down rates of dead aspen (Populus tremuloides) biomass following severe drought in west-central Canada.

    Science.gov (United States)

    Ted Hogg, Edward H; Michaelian, Michael

    2015-05-01

    Increases in mortality of trembling aspen (Populus tremuloides Michx.) have been recorded across large areas of western North America following recent periods of exceptionally severe drought. The resultant increase in standing, dead tree biomass represents a significant potential source of carbon emissions to the atmosphere, but the timing of emissions is partially driven by dead-wood dynamics which include the fall down and breakage of dead aspen stems. The rate at which dead trees fall to the ground also strongly influences the period over which forest dieback episodes can be detected by aerial surveys or satellite remote sensing observations. Over a 12-year period (2000-2012), we monitored the annual status of 1010 aspen trees that died during and following a severe regional drought within 25 study areas across west-central Canada. Observations of stem fall down and breakage (snapping) were used to estimate woody biomass transfer from standing to downed dead wood as a function of years since tree death. For the region as a whole, we estimated that >80% of standing dead aspen biomass had fallen after 10 years. Overall, the rate of fall down was minimal during the year following stem death, but thereafter fall rates followed a negative exponential equation with k = 0.20 per year. However, there was high between-site variation in the rate of fall down (k = 0.08-0.37 per year). The analysis showed that fall down rates were positively correlated with stand age, site windiness, and the incidence of decay fungi (Phellinus tremulae (Bond.) Bond. and Boris.) and wood-boring insects. These factors are thus likely to influence the rate of carbon emissions from dead trees following periods of climate-related forest die-off episodes. © 2014 Her Majesty the Queen in Right of Canada Global Change Biology © 2014 John Wiley & Sons Ltd Reproduced with the permission of the Minister of Natural Resources Canada.

  9. Increasing Use of Postpartum Family Planning and the Postpartum IUD: Early Experiences in West and Central Africa.

    Science.gov (United States)

    Pleah, Tsigue; Hyjazi, Yolande; Austin, Suzanne; Diallo, Abdoulaye; Dao, Blami; Waxman, Rachel; Karna, Priya

    2016-08-11

    A global resurgence of interest in the intrauterine device (IUD) as an effective long-acting reversible contraceptive and in improving access to a wide range of contraceptive methods, as well as an emphasis on encouraging women to give birth in health care facilities, has led programs to introduce postpartum IUD (PPIUD) services into postpartum family planning (PPFP) programs. We describe strategic, organizational, and technical elements that contributed to early successes of a regional initiative in West and Central Africa to train antenatal, maternity, and postnatal care providers in PPFP counseling for the full range of available methods and in PPIUD service delivery. In November 2013, the initiative provided competency-based training in Guinea for providers from the main public teaching hospital in 5 selected countries (Benin, Chad, Côte d'Ivoire, Niger, and Senegal) with no prior PPFP counseling or PPIUD capacity. The training was followed by a transfer-of-learning visit and monitoring to support the trained providers. One additional country, Togo, replicated the initiative's model in 2014. Although nascent, this initiative has introduced high-quality PPFP and PPIUD services to the region, where less than 1% of married women of reproductive age use the IUD. In total, 21 providers were trained in PPFP counseling, 18 of whom were also trained in PPIUD insertion. From 2014 to 2015, more than 15,000 women were counseled about PPFP, and 2,269 women chose and received the PPIUD in Benin, Côte d'Ivoire, Niger, Senegal, and Togo. (Introduction of PPIUD services in Chad has been delayed.) South-South collaboration has been central to the initiative's accomplishments: Guinea's clinical centers of excellence and qualified trainers provided a culturally resonant example of a PPFP/PPIUD program, and trainings are creating a network of regional trainers to facilitate expansion. Two of the selected countries (Benin and Niger) have expanded their PPFP/PPUID training

  10. Hydrogeological and isotopic studies for selected springs in Sinai Peninsula

    Energy Technology Data Exchange (ETDEWEB)

    Hamza, M S; Awad, M A; El-gamal, S A [Atomic Energy Authority, Cairo Egypt and Middle Eastern Regional Radioisotope Center for The Arab Countries, Dokki, 12311, Cairo (Egypt); Hammad, F A [Desert Research Centre, Materia, Cairo, (Egypt)

    1995-10-01

    This paper deals with the hydrogeology and isotopic composition of water samples collected from selected spring in sinai (e.g. Algudierate, Alqusiema, qidis and Isram) in order to identify their genesis, their interaction with the host rocks and mixing trend. Results of isotopic composition have indicated the similarity in the hydrogeologic situation of Ain qidis and Ain-al-gudierate, while Ain Isram has shown a marked difference in its stable isotope and this could be due to evaporation effect. The isotopic and hydrochemical constituents of the studied springs reflect eater of a meteoric origin with a possible contamination from surficial materials (evaporates) and deeper aquifers. 6 figs., 2 tabs.

  11. Hydrogeologic framework and occurrence, movement, and chemical characterization of groundwater in Dixie Valley, west-central Nevada

    Science.gov (United States)

    Huntington, Jena M.; Garcia, C. Amanda; Rosen, Michael R.

    2014-01-01

    Dixie Valley, a primarily undeveloped basin in west-central Nevada, is being considered for groundwater exportation. Proposed pumping would occur from the basin-fill aquifer. In response to proposed exportation, the U.S. Geological Survey, in cooperation with the Bureau of Reclamation and Churchill County, conducted a study to improve the understanding of groundwater resources in Dixie Valley. The objective of this report is to characterize the hydrogeologic framework, the occurrence and movement of groundwater, the general water quality of the basin-fill aquifer, and the potential mixing between basin-fill and geothermal aquifers in Dixie Valley. Various types of geologic, hydrologic, and geochemical data were compiled from previous studies and collected in support of this study. Hydrogeologic units in Dixie Valley were defined to characterize rocks and sediments with similar lithologies and hydraulic properties influencing groundwater flow. Hydraulic properties of the basin-fill deposits were characterized by transmissivity estimated from aquifer tests and specific-capacity tests. Groundwater-level measurements and hydrogeologic-unit data were combined to create a potentiometric surface map and to characterize groundwater occurrence and movement. Subsurface inflow from adjacent valleys into Dixie Valley through the basin-fill aquifer was evaluated using hydraulic gradients and Darcy flux computations. The chemical signature and groundwater quality of the Dixie Valley basin-fill aquifer, and potential mixing between basin-fill and geothermal aquifers, were evaluated using chemical data collected from wells and springs during the current study and from previous investigations. Dixie Valley is the terminus of the Dixie Valley flow system, which includes Pleasant, Jersey, Fairview, Stingaree, Cowkick, and Eastgate Valleys. The freshwater aquifer in the study area is composed of unconsolidated basin-fill deposits of Quaternary age. The basin-fill hydrogeologic unit

  12. Petroleum hydrocarbon concentration in surface sediments in continental shelf region along the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Ram, A.; Kadam, A.N.

    Gas chromatography revealed that nonpolar material extracted from surface sediments collected along the northern west coast of India was originated from petroleum hydrocarbon residue. Petroleum hydrocarbon levels as determinEd. by fluorescence...

  13. Spectra and gross features of vertical temperature and salinity profiles off the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Varkey, M.J.; Nagarajan, R.

    Continuous vertical profiles of temperature and salinity recorded by a CTD-system from the continental slope and the continental rise off Goa, west coast of India, were used for delineating the gross statistical features of the fine structure...

  14. Social Mobilization and Community Engagement Central to the Ebola Response in West Africa: Lessons for Future Public Health Emergencies.

    Science.gov (United States)

    Gillespie, Amaya M; Obregon, Rafael; El Asawi, Rania; Richey, Catherine; Manoncourt, Erma; Joshi, Kshiitij; Naqvi, Savita; Pouye, Ade; Safi, Naqibullah; Chitnis, Ketan; Quereshi, Sabeeha

    2016-12-23

    Following the World Health Organization (WHO) declaration of a Public Health Emergency of International Concern regarding the Ebola outbreak in West Africa in July 2014, UNICEF was asked to co-lead, in coordination with WHO and the ministries of health of affected countries, the communication and social mobilization component-which UNICEF refers to as communication for development (C4D)-of the Ebola response. For the first time in an emergency setting, C4D was formally incorporated into each country's national response, alongside more typical components such as supplies and logistics, surveillance, and clinical care. This article describes the lessons learned about social mobilization and community engagement in the emergency response to the Ebola outbreak, with a particular focus on UNICEF's C4D work in Guinea, Liberia, and Sierra Leone. The lessons emerged through an assessment conducted by UNICEF using 4 methods: a literature review of key documents, meeting reports, and other articles; structured discussions conducted in June 2015 and October 2015 with UNICEF and civil society experts; an electronic survey, launched in October and November 2015, with staff from government, the UN, or any partner organization who worked on Ebola (N = 53); and key informant interviews (N = 5). After triangulating the findings from all data sources, we distilled lessons under 7 major domains: (1) strategy and decentralization: develop a comprehensive C4D strategy with communities at the center and decentralized programming to facilitate flexibility and adaptation to the local context; (2) coordination: establish C4D leadership with the necessary authority to coordinate between partners and enforce use of standard operating procedures as a central coordination and quality assurance tool; (3) entering and engaging communities: invest in key communication channels (such as radio) and trusted local community members; (4) messaging: adapt messages and strategies continually as patterns

  15. Economic appraisal of the public control and prevention strategy against the 2010 West Nile Virus outbreak in Central Macedonia, Greece.

    Science.gov (United States)

    Kolimenakis, A; Bithas, K; Richardson, C; Latinopoulos, D; Baka, A; Vakali, A; Hadjichristodoulou, C; Mourelatos, S; Kalaitzopoulou, S; Gewehr, S; Michaelakis, A; Koliopoulos, G

    2016-02-01

    The aim of the present paper is to evaluate the economic efficiency of the public control and prevention strategies to tackle the 2010 West Nile Virus (WNV) outbreak in the Region of Central Macedonia, Greece. Efficiency is examined on the basis of the public prevention costs incurred and their potential in justifying the costs arising from health and nuisance impacts in the succeeding years. Economic appraisal of public health management interventions. Prevention and control cost categories including control programmes, contingency planning and blood safety testing, are analyzed based on market prices. A separate cost of illness approach is conducted for the estimation of medical costs and productivity losses from 2010 to 2013 and for the calculation of averted health impacts. The averted mosquito nuisance costs to households are estimated on the basis of a contingent valuation study. Based on these findings, a limited cost-benefit analysis is employed in order to evaluate the economic efficiency of these strategies in 2010-2013. Results indicate that cost of illness and prevention costs fell significantly in the years following the 2010 outbreak, also as a result of the epidemic coming under control. According to the contingent valuation survey, the annual average willingness to pay to eliminate the mosquito problem in the study area ranged between 22 and 27 € per household. Cost-benefit analysis indicates that the aggregate benefit of implementing the previous 3-year strategy creates a net socio-economic benefit in 2013. However the spread of the WNV epidemic and the overall socio-economic consequences, had the various costs not been employed, remain unpredictable and extremely difficult to calculate. The application of a post epidemic strategy appears to be of utmost importance for public health safety. An updated well designed survey is needed for a more precise definition of the optimum prevention policies and levels and for the establishment of the various

  16. Stratigraphic framework of sediment-starved sand ridges on a mixed siliciclastic/carbonate inner shelf; west-central Florida

    Science.gov (United States)

    Edwards, J.H.; Harrison, S.E.; Locker, S.D.; Hine, A.C.; Twichell, D.C.

    2003-01-01

    Seismic reflection profiles and vibracores have revealed that an inner shelf, sand-ridge field has developed over the past few thousand years situated on an elevated, broad bedrock terrace. This terrace extends seaward of a major headland associated with the modern barrier-island coastline of west-central Florida. The overall geologic setting is a low-energy, sediment-starved, mixed siliciclastic/carbonate inner continental shelf supporting a thin sedimentary veneer. This veneer is arranged in a series of subparallel, shore-oblique, and to a minor extent, shore-parallel sand ridges. Seven major facies are present beneath the ridges, including a basal Neogene limestone gravel facies and a blue-green clay facies indicative of dominantly authigenic sedimentation. A major sequence boundary separates these older units from Holocene age, organic-rich mud facies (marsh), which grades upward into a muddy sand facies (lagoon or shallow open shelf/seagrass meadows). Cores reveal that the muddy shelf facies is either in sharp contact or grades upward into a shelly sand facies (ravinement or sudden termination of seagrass meadows). The shelly sand facies grades upward to a mixed siliciclastic/carbonate facies, which forms the sand ridges themselves. This mixed siliciclastic/carbonate facies differs from the sediment on the beach and shoreface, suggesting insignificant sediment exchange between the offshore ridges and the modern coastline. Additionally, the lack of early Holocene, pre-ridge facies in the troughs between the ridges suggests that the ridges themselves do not migrate laterally extensively. Radiocarbon dating has indicated that these sand ridges can form relatively quickly (???1.3 ka) on relatively low-energy inner shelves once open-marine conditions are available, and that frequent, high-energy, storm-dominated conditions are not necessarily required. We suggest that the two inner shelf depositional models presented (open-shelf vs. migrating barrier-island) may

  17. The face of Ebola: changing frequency of haemorrhage in the West African compared with Eastern-Central African outbreaks.

    Science.gov (United States)

    Petti, Stefano; Messano, Giuseppe Alessio; Vingolo, Enzo Maria; Marsella, Luigi Tonino; Scully, Crispian

    2015-12-11

    The West-African (WA) Zaire Ebolavirus disease (EVD) outbreak was characterized by an exceptionally high number of cases and deaths as compared with the Eastern-Central African (ECA) outbreaks. Despite the Zaire Ebolavirus being the most lethal for humans, case-fatality rate, close to 80 % in ECA outbreaks, almost halved to 47 % in Guinea-Liberia-Sierra Leone (WA). Such an improvement was due to the remarkable implementation of international humanitarian aids. Some studies also suggested that the long human-to-human transmission cycle occurred in WA, gave rise to human adaptation and consequent immune escape. Haemorrhage, the main feature in seriously infected EVD patients, is due to the immune system that triggers the infected endothelial cells which expose the spike-like glycoprotein (GP) of the virion on their surface. If the human adaptation hypothesis holds true, the proportion of EVD patients with haemorrhage in the WA outbreak should be lower than in the ECA outbreaks due to immune escape. Therefore, the aim of this meta-analysis was to compare the relative frequencies of three typical haemorrhagic symptoms (conjunctival -CB, nasal -NB, gingival -GB- bleedings) in the ECA and WA outbreaks. Literature searches were performed through PubMed and Scopus using generic keywords; surveys including at least ten patients reporting CB, NB, GB relative frequencies were extracted and split into ECA and WA. The meta-analytical methods chosen were based on the levels of between-study heterogeneity and publication bias. Pooled CB, NB, GB relative frequencies in ECA and WA were estimated and compared. Subgroup analysis including only studies on Zaire Ebolavirus also was performed. Fifteen studies (10 ECA, 5 WA) were located with 4,867 (CB), 3,859 (NB), 4,278 (GB) EVD patients overall. GB pooled relative frequency was 45.3 % (95 % confidence interval -95 CI, 34.7-56.1 %) and 18.0 % (95 CI, 6.0-34.5 %), in ECA and WA; NB was 10.6 % (95 CI, 5.7-16.8 %) and 1.3 % (1

  18. Phytoplankton and some abiotic features of El-Bardawil Lake, Sinai ...

    African Journals Online (AJOL)

    Phytoplankton and some abiotic features of El-Bardawil Lake, Sinai, Egypt. H Touliabah, HM Safik, MM Gab-Allah, WD Taylor. Abstract. El-Bardawil Lake is a large coastal lagoon on the Mediterranean coast of Sinai, Egypt. Although it is shallow and oligotrophic, it is one of the most important lakes in Egypt as a source of ...

  19. Temperature shifts in the Sinai model: static and dynamical effects

    International Nuclear Information System (INIS)

    Sales, Marta; Bouchaud, Jean-Philippe; Ritort, Felix

    2003-01-01

    We study analytically and numerically the role of temperature shifts in the simplest model where the energy landscape is explicitly hierarchical, namely the Sinai model. This model has both attractive features (there are valleys within valleys in a strict self-similar sense), but also one important drawback: there is no phase transition so that the model is, in the large-size limit, effectively at zero temperature. We compute various static chaos indicators, that are found to be trivial in the large-size limit, but exhibit interesting features for finite sizes. Correspondingly, for finite times, some interesting rejuvenation effects, related to the self-similar nature of the potential, are observed. Still, the separation of time scales/length scales with temperature in this model is much weaker than in experimental spin glasses

  20. Protecting breastfeeding in West and Central Africa: over 25 years of implementation of the International Code of Marketing of Breastmilk Substitutes.

    Science.gov (United States)

    Sokol, Ellen; Clark, David; Aguayo, Victor M

    2008-09-01

    In 1981 the World Health Assembly (WHA) adopted the International Code of Marketing of Breastmilk Substitutes out of concern that inappropriate marketing of breastmilk substitutes was contributing to the alarming decline in breastfeeding worldwide and the increase in child malnutrition and mortality, particularly in developing countries. To document progress, challenges, and lessons learned in the implementation of the International Code in West and Central Africa. Data were obtained by literature review and interviews with key informants. Twelve of the 24 countries have laws, decrees, or regulations that implement all or most of the provisions of the Code, 6 countries have a draft law or decree that is awaiting government approval or have a government committee that is studying how best to implement the Code, 3 countries have a legal instrument that enacts a few provisions of the Code, and 3 countries have not taken any action to implement the Code. International declarations and initiatives for child nutrition and survival have provided impetus for national implementation of the Code. National action to regulate the marketing of breastmilk substitutes needs to be linked to national priorities for nutrition and child survival. A clearly defined scope is essential for effective implementation of national legislation. Leadership and support by health professionals is essential to endorse and enforce national legislation. Training on Code implementation is instrumental for national action; national implementation of the Code requires provisions and capacity to monitor and enforce the legislative framework and needs to be part of a multipronged strategy to advance national child nutrition and survival goals. Nations in West and Central Africa have made important progress in implementing the International Code. More than 25 years after its adoption by the WHA, the Code remains as important as ever for child survival and development in West and Central Africa.

  1. Groundwater levels, geochemistry, and water budget of the Tsala Apopka Lake system, west-central Florida, 2004–12

    Science.gov (United States)

    McBride, W. Scott; Metz, Patricia A.; Ryan, Patrick J.; Fulkerson, Mark; Downing, Harry C.

    2017-12-18

    Tsala Apopka Lake is a complex system of lakes and wetlands, with intervening uplands, located in Citrus County in west-central Florida. It is located within the 2,100 square mile watershed of the Withlacoochee River, which drains north and northwest towards the Gulf of Mexico. The lake system is managed by the Southwest Florida Water Management District as three distinct “pools,” which from upstream to downstream are referred to as the Floral City Pool, Inverness Pool, and Hernando Pool. Each pool contains a mixture of deep-water lakes that remain wet year round, ephemeral (seasonal) ponds and wetlands, and dry uplands. Many of the major deep-water lakes are interconnected by canals. Flow from the Withlacoochee River, when conditions allow, can be diverted into the lake system. Flow thorough the canals can be used to control the distribution of water between the three pools. Flow in the canals is controlled using structures, such as gates and weirs.Hydrogeologic units in the study area include a surficial aquifer consisting of Quaternary-age sediments, a discontinuous intermediate confining unit consisting of Miocene- and Pliocene-age sediments, and the underlying Upper Floridan aquifer, which consists of Eocene- and Oligocene-age carbonates. The fine-grained quartz sands that constitute the surficial aquifer are generally thin, typically less than 25 feet thick, within the vicinity of Tsala Apopka Lake. A thin, discontinuous, sandy clay layer forms the intermediate confining unit. The Upper Floridan aquifer is generally unconfined in the vicinity of Tsala Apopka Lake because the intermediate confining unit is discontinuous and breached by numerous karst features. In the study area, the Upper Floridan aquifer includes the upper Avon Park Formation and Ocala Limestone. The Ocala Limestone is the primary source of drinking water and spring flow in the area.The objectives of this study are to document the interaction of Tsala Apopka Lake, the surficial aquifer

  2. Description of the physical environment an coal-mining history of West-Central Indiana, with emphasis on six small watersheds

    Science.gov (United States)

    Martin, Jeffrey D.; Crawford, Charles G.; Duwelius, Richard F.; Renn, Danny E.

    1990-01-01

    This report describes the physical and human environment and coal-mining history of west-central Indiana, with emphasis on six small watersheds selected for study of the hydrologic effects of surface coal mining. The report summarizes information on the geology, geomorphology, soils, climate, hydrology, water use, land use, population, and coal-mining history of Clay, Owen, Sullivan, and Vigo Counties in Indiana. Site-specific information is given on the morphology, geology, soils, land use, coal-mining history, and hydrologic instrumentation of the six watersheds, which are each less than 3 square miles in area.

  3. First Report of Outbreaks of the Fall Armyworm Spodoptera frugiperda (J E Smith) (Lepidoptera, Noctuidae), a New Alien Invasive Pest in West and Central Africa.

    Science.gov (United States)

    Goergen, Georg; Kumar, P Lava; Sankung, Sagnia B; Togola, Abou; Tamò, Manuele

    2016-01-01

    The fall armyworm Spodoptera frugiperda is a prime noctuid pest of maize on the American continents where it has remained confined despite occasional interceptions by European quarantine services in recent years. The pest has currently become a new invasive species in West and Central Africa where outbreaks were recorded for the first time in early 2016. The presence of at least two distinct haplotypes within samples collected on maize in Nigeria and São Tomé suggests multiple introductions into the African continent. Implications of this new threat to the maize crop in tropical Africa are briefly discussed.

  4. The common coot as sentinel species for the presence of West Nile and Usutu flaviviruses in Central Europe

    Czech Academy of Sciences Publication Activity Database

    Straková, Petra; Šikutová, Silvie; Jedličková, Petra; Sitko, J.; Rudolf, Ivo; Hubálek, Zdeněk

    2015-01-01

    Roč. 102, October (2015), s. 159-161 ISSN 0034-5288 EU Projects: European Commission(XE) 261504 Institutional support: RVO:68081766 Keywords : West Nile virus * Usutu virus * Common coot * Fulica atra * Surveillance * Mosquito -borne viruses * Culex spp. Subject RIV: EG - Zoology Impact factor: 1.504, year: 2015

  5. The 2011 West Bohemia (Central Europe) earthquake swarm compared with the previous swarms of 2000 and 2008

    Czech Academy of Sciences Publication Activity Database

    Čermáková, Hana; Horálek, Josef

    2015-01-01

    Roč. 19, č. 4 (2015), s. 899-913 ISSN 1383-4649 R&D Projects: GA ČR GAP210/12/2336; GA MŠk LM2010008 Institutional support: RVO:67985530 Keywords : West Bohemia/Vogtland * local seismicity * earthquake swarm Subject RIV: DC - Siesmology, Volcanology, Earth Structure Impact factor: 1.550, year: 2015

  6. Changes in erosional and depositional processes with time and management of Goa Coast, central west coast of India

    Science.gov (United States)

    Nayak, Ganapati; D'Souza, Joseph

    2010-05-01

    Coastal and estuarine environments, world over are facing immense impact due to both natural and anthropogenic processes. The natural processes include climatic changes, rise in sea level, cyclone, flood, tsunamis, coastal erosion, salinity ingress and siltation. Likewise, anthropogenic pressures include population expansion, ocean traffic, dredging, resource exploitation, pollution, unplanned urbanization and intensive industrialization. Due to these impacts the fragile coastal ecosystem and its entities, like sub ecosystems, resources, morphological units are undergoing unprecedented degradation, rendering these coastal regions vulnerable, impinging risk to human population, livestock, properties, as also, devastation of resourceful lands. This accelerates economic fatalities and irreversible obliteration to the ecosystems. Evidences on the global concern towards this issue have been well established. The countries world over, including India, pledged consensus towards the protection of the fragile coastal ecosystems through UNCED, Agenda-21. India, on 19th February 1991, has designated specified corridors along the landward side of the coastline as "Coastal Regulatory Zones" (CRZ), through appropriate policy and law. In context with the CRZ notification, scientific database at local and site-specific areas, developed. Synergy of ecosystems, landscape and resources with demographic, tourism data, vis-à-vis, economic corridors/sectors aided the paradigms and criterion for local and site specific prescriptions for Goa Coast. The Goa coast is a part of central west coast of India and is characterized by pocket beaches flanked by rocky cliffs, estuaries, bays, and at some places mangroves. Beaches in southern Goa are long and linear in nature with sand dunes. The Mandovi and Zuari estuarine system in Goa is the largest in this part of the coast. Mud flats, swampy marshes and wetlands are found mainly along estuaries and creeks. The beaches of Goa are stable beaches

  7. Description of the physical environment and coal-mining history of west-central Indiana, with emphasis on six small watersheds

    International Nuclear Information System (INIS)

    Martin, J.D.; Crawford, C.G.; Duwelius, R.F.; Renn, D.E.

    1990-01-01

    West-central Indiana is underlain by coal-bearing Pennsylvanian rocks. Nearly all of the area has been glaciated at least once and is characterized by wide flood plains and broad, flat uplands. The most productive aquifers are confined or unconfined outwash aquifers located along the major rivers. Bedrock aquifers are regionally insignificant but are the sole source of groundwater for areas that lack outwash, alluvium, or sand and gravel lenses in till. Indiana has > 17 billion short tons of recoverable coal reserves; about 11% can be mined by surface methods. More than 50,000 acres in west-central Indiana were disturbed by surface coal mining from 1941 through 1980. Ridges of mine spoil have been graded to a gently rolling topography. Soils are well drained and consist of 6 to 12 inches of silt-loam topsoil that was stockpiled and then replaced over shale and sandstone fragments of the graded mine spoil. Grasses and legumes form the vegetative cover in each watershed. Pond Creek and the unnamed tributary to Big Branch are streams that drain mined and unreclaimed watersheds. Approximately one-half of the Pond Creek watershed is unmined,agricultural land. Soils are very well drained shaly silty loams that have formed on steeply sloping spoil banks. Both watersheds contain numerous impoundments of water and have enclosed areas that do not contribute surface runoff to streamflow. The ridges of mine spoil are covered with pine trees, but much of the soil surface is devoid of vegetation

  8. Ancient Maya Regional Settlement and Inter-Site Analysis: The 2013 West-Central Belize LiDAR Survey

    Directory of Open Access Journals (Sweden)

    Arlen F. Chase

    2014-09-01

    Full Text Available During April and May 2013, a total of 1057 km2 of LiDAR was flown by NCALM for a consortium of archaeologists working in West-central Belize, making this the largest surveyed area within the Mayan lowlands. Encompassing the Belize Valley and the Vaca Plateau, West-central Belize is one of the most actively researched parts of the Maya lowlands; however, until this effort, no comprehensive survey connecting all settlement had been conducted. Archaeological projects have investigated at least 18 different sites within this region. Thus, a large body of archaeological research provides both the temporal and spatial parameters for the varied ancient Maya centers that once occupied this area; importantly, these data can be used to help interpret the collected LiDAR data. The goal of the 2013 LiDAR campaign was to gain information on the distribution of ancient Maya settlement and sites on the landscape and, particularly, to determine how the landscape was used between known centers. The data that were acquired through the 2013 LiDAR campaign have significance for interpreting both the composition and limits of ancient Maya political units. This paper presents the initial results of these new data and suggests a developmental model for ancient Maya polities.

  9. The landscape configuration of zoonotic transmission of Ebola virus disease in West and Central Africa: interaction between population density and vegetation cover

    Directory of Open Access Journals (Sweden)

    Michael G. Walsh

    2015-01-01

    Full Text Available Ebola virus disease (EVD is an emerging infectious disease of zoonotic origin that has been responsible for high mortality and significant social disruption in West and Central Africa. Zoonotic transmission of EVD requires contact between susceptible human hosts and the reservoir species for Ebolaviruses, which are believed to be fruit bats. Nevertheless, features of the landscape that may facilitate such points of contact have not yet been adequately identified. Nor have spatial dependencies between zoonotic EVD transmission and landscape structures been delineated. This investigation sought to describe the spatial relationship between zoonotic EVD transmission events, or spillovers, and population density and vegetation cover. An inhomogeneous Poisson process model was fitted to all precisely geolocated zoonotic transmissions of EVD in West and Central Africa. Population density was strongly associated with spillover; however, there was significant interaction between population density and green vegetation cover. In areas of very low population density, increasing vegetation cover was associated with a decrease in risk of zoonotic transmission, but as population density increased in a given area, increasing vegetation cover was associated with increased risk of zoonotic transmission. This study showed that the spatial dependencies of Ebolavirus spillover were associated with the distribution of population density and vegetation cover in the landscape, even after controlling for climate and altitude. While this is an observational study, and thus precludes direct causal inference, the findings do highlight areas that may be at risk for zoonotic EVD transmission based on the spatial configuration of important features of the landscape.

  10. Effects of surface coal mining and reclamation on the geohydrology of six small watersheds in west-central Indiana. Chapter B

    International Nuclear Information System (INIS)

    Martin, J.D.; Duwelius, R.F.; Crawford, C.G.

    1990-01-01

    Coal has been and will continue to be a major source of energy in the United States for the foreseeable future. Surface mining is presently the most efficient method of extracting coal. The mining practice, however, usually has a detrimental effect on the environment by altering topography and ecologic systems. Surface coal mining also can degrade surface- and ground-water quality and quantity. The U.S. Geological Survey began a study in 1979 to identify changes in the quantity of surface- and ground-water resources caused by surface coal mining in Indiana. As part of the study, six small watersheds in west-central Indiana were instrumented for the collection of hydrologic and meteorologic data. The Water-Supply Paper comprises two reports resulting from the investigation. The physical environment and coal mining history of west-central Indiana and the six small watersheds selected for intensive study are described in chapter A. The surface- and ground-water systems of each of the small watersheds and the hydrologic effects of coal mining and reclamation are described in chapter B

  11. Comprehensive Screening of Some West and Central African Sesame Genotypes for Drought Resistance Probing by Agromorphological, Physiological, Biochemical and Seed Quality Traits

    Directory of Open Access Journals (Sweden)

    Komivi Dossa

    2017-12-01

    Full Text Available Sesame is an important crop in West and Central Africa playing a role of an alternative cash crop for smallholders. However, sesame productivity is highly impaired by drought. This study aimed at identifying some drought-resistant genotypes and efficient screening traits in large sesame germplasm. Ten genotypes were examined based on 21 biochemical, physiological, agromorphological and seed quality traits under three weeks of water stress. A high variability for drought resistance was observed among the genotypes. The genotypes WC17, WC18 and WC14 were drought resistant, WC12, WC13, WC06 and WC03 were moderately drought resistant while, WC02, WC10 and WC08 were drought sensitive, based on principal component analysis. The resistant genotypes exhibited both avoidance and tolerance features including increase of the root system, reduced water loss, highest activity of antioxidative enzymes and accumulation of proline. They produced higher biomass and had higher ability to maintain seed quality under drought stress compared with the sensitive genotypes. Strong accumulation (~200% ratio stress/control of biochemical markers including superoxide dismutase, ascorbate peroxidase, catalase and proline could be regarded as an important indicator for selecting drought resistant genotypes. This study represents a reference for future research towards developing new varieties with improved drought resistance in West and Central Africa.

  12. Geologic sources and concentrations of selenium in the West-Central Denver Basin, including the Toll Gate Creek watershed, Aurora, Colorado, 2003-2007

    Science.gov (United States)

    Paschke, Suzanne S.; Walton-Day, Katherine; Beck, Jennifer A.; Webbers, Ank; Dupree, Jean A.

    2014-01-01

    Toll Gate Creek, in the west-central part of the Denver Basin, is a perennial stream in which concentrations of dissolved selenium have consistently exceeded the Colorado aquatic-life standard of 4.6 micrograms per liter. Recent studies of selenium in Toll Gate Creek identified the Denver lignite zone of the non-marine Cretaceous to Tertiary-aged (Paleocene) Denver Formation underlying the watershed as the geologic source of dissolved selenium to shallow ground-water and surface water. Previous work led to this study by the U.S. Geological Survey, in cooperation with the City of Aurora Utilities Department, which investigated geologic sources of selenium and selenium concentrations in the watershed. This report documents the occurrence of selenium-bearing rocks and groundwater within the Cretaceous- to Tertiary-aged Denver Formation in the west-central part of the Denver Basin, including the Toll Gate Creek watershed. The report presents background information on geochemical processes controlling selenium concentrations in the aquatic environment and possible geologic sources of selenium; the hydrogeologic setting of the watershed; selenium results from groundwater-sampling programs; and chemical analyses of solids samples as evidence that weathering of the Denver Formation is a geologic source of selenium to groundwater and surface water in the west-central part of the Denver Basin, including Toll Gate Creek. Analyses of water samples collected from 61 water-table wells in 2003 and from 19 water-table wells in 2007 indicate dissolved selenium concentrations in groundwater in the west-central Denver Basin frequently exceeded the Colorado aquatic-life standard and in some locations exceeded the primary drinking-water standard of 50 micrograms per liter. The greatest selenium concentrations were associated with oxidized groundwater samples from wells completed in bedrock materials. Selenium analysis of geologic core samples indicates that total selenium

  13. Geomorphic processes in the vicinity of the Venkatapur river mouth, central west coast of India: Implications for estuarine sedimentation

    Digital Repository Service at National Institute of Oceanography (India)

    Nayak, S.R.; Hegde, V.S.; Shalini, G.; Rajawat, A.S.; Girish, K.H.; Jayakumar, S.; Suryanarayana, A.

    and Hesp, 1982). In the study area, wave height (0.75– 1.25 m) defines low-energy conditions during premonsoon and postmonsoon periods, and high wave energy prevails during monsoon and the transition from premonsoon to monsoon. The case study area stretches... the west. Murdeshwar, a tourism center, which used to be an island, but which has since been connected to the mainland by tomboloeffect,liestothenorthoftheVenkatapurRivermouth. Coastal erosion has occurred to the south of the Murdeshwar Island, and a sea...

  14. Mineralogy and Radioactivity of Some Pegmatite Bodies, Southeastern Sinai, Egypt

    International Nuclear Information System (INIS)

    Elnahas, H.A.

    2012-01-01

    The area under consideration constitutes the extreme eastern part of the Kid metamorphic belt in Sinai Peninsula. The Neoproterozoic rock units exposed there comprise gneisses, migmatites, old granitoids and monzogranites. Most of the pegmatite bodies encountered in the monzogranite rocks occur as plug-like bodies and veins of variable dimensions. These studied pegmatites are mainly of the simple unzoned type. They are composed of intergrowths of smoky quartz and pink K-feldspar with some accumulations of micas which host most of radioactive mineralizations. Radiomertrically, the concentration of eU ranges between 41 and 117ppm with an average of 73ppm, while eTh varies between 160 and 433ppm with an average of 223ppm. The Ra content reaches up to 94ppm with an average of 62ppm. The radioelements variation diagrams illustrate that the distribution of radioelements is due to both magmatic origin and hydrothermal redistribution. The high level of radioactivity in the studied granitic pegmatites is mainly resulted from the presence of ishikawaite, thorite, uranothorite, thorianite, zircon, fiptafite and fluorite. Most of the studied radioactive minerals commonly occur in the metamict state. Other accessory minerals like anatase, hematite and magnetite are also recorded. The study reports for the first time the presence of Ishikawaite-Th, where Th prevails U. Ishikawaite-Th grains contain exsolution intergrowths of ishikawaite-U and thorianite.

  15. Environmental isotopes, chemical composition and groundwater sources in Al-Maghara area, Sinai, Egypt

    International Nuclear Information System (INIS)

    Nada, A.A.; Awad, M.A.; Froehlich, K.; El Behery, M.

    1991-01-01

    Groundwater samples collected from a number of localities, in Al-Maghara area, north central part of Sinai, were subject to various chemical and isotopic analysis. The purpose of the study is to determine whether the groundwaters are recently recharged or not in order to adopt an efficient water management policy. The hydrochemical results indicate that they are mainly of primary marine origin, dilution of this water by meteoric water changes its chemical composition to be mixed water type, which has the major chemical components: KCl, NaCl, Na 2 SO 4 , MgSO 4 , Mg(HCO 3 ) 2 and Ca(HCO 3 ) 2 . The tritium content confirm the meteoric water recharge recently especially for wells with high tritium content. The stable environmental isotopic composition of the groundwater reflects the isotopic composition of precipitation and flooding with some evaporation enrichment prior to infiltration. There is also mixing with palaeowater (water recharge in the past cooler climate periods), by leaking through faulting in the area. (orig.) [de

  16. Prevalence and genetic characterisation of HTLV-1 and 2 dual infections in patients with pulmonary tuberculosis in Central-West Brazil

    Directory of Open Access Journals (Sweden)

    Aline Garcia Kozlowski

    2014-02-01

    Full Text Available Human T-cell lymphotropic virus (HTLV may impact the clinical course of tuberculosis (TB. Both infections are highly endemic in Brazil. The aim of this study was to assess the prevalence of HTLV-1/2 in TB patients in Central-West Brazil and to perform a genetic characterisation of the respective isolates. Of the 402 patients, six (1.49% were positive for anti-HTLV and five (1.24%; 95% confidence interval: 0.46-3.05 were infected with HTLV-1/2. Genetic characterisation demonstrated that the four HTLV-1 isolates belonged to the Transcontinental subgroup A of the Cosmopolitan subtype a and that the HTLV-2 isolate belonged to subtype a (HTLV-2a/c. The prevalence of HTLV infection observed in this study is higher than that observed in local blood donors and the HTLV-1 and 2 subtypes identified are consistent with those circulating in Brazil.

  17. Effect of oil spillage on ecological diversity of pneumatophore associated fauna and flora in central west coast of india

    Digital Repository Service at National Institute of Oceanography (India)

    Sahoo, G.; Ansari, Z.A.

    .4 and 1.7 respectively Centrale diatoms dominated in case of sediment while pennales dominated on the pneumatophore surface In Goa, the diatom community was dominated by Nitzschia (1203 cells/1 cm2) and coscinodiscus (1876 cells/ 1 cm2

  18. Occurrence of the spider crab Acanthonyx euryseroche, a seaweed associate along the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Joshi, S.A.; Savant, S.B.; Kulkarni, V.A.; Shenai-Tirodkar, P.; Emparanza, E.J.M.; Jagtap, T.G.

    , T. J. and Koteeswaran, R., Ploidy induction and sex con- trol in fish. Hydrobiologia, 1998, 384, 167–243. 11. Rao, G. R., Tripathi, S. D. and Sahu, A. K., Breeding and seed production of the Asian catfish Clarias batrachus (Lin.). Central..., directed forward, lateral margin of eave concave. Eyestalk was short, slender, cornea con- cealed under eye, eave completely covering eye when apposed against carapace. Hepatic margin was produced to triangular, flat, broad, with blunt tip, posterior...

  19. Central Chile

    Science.gov (United States)

    2002-01-01

    The beginning of spring in central Chile looked like this to SeaWiFS. The snow-covered Andes mark the country's eastern border, and phytoplankton blooms and river sediment plumes fill the waters off its west coast. A large eddy due west of Concepcion is highlighted by the phytoplankton it contains.

  20. Characterization of Potential Plant Growth Promoting Rhizobacteria Isolated from Maize (Zea mays L. in Central and Northern Benin (West Africa

    Directory of Open Access Journals (Sweden)

    Nadège A. Agbodjato

    2015-01-01

    Full Text Available Our study aims to characterize Plant Growth Promoting Rhizobacteria (PGPR isolated from maize roots in five agroecological zones of central and northern Benin. Sixty samples were collected at the rate of four samples per village and three villages per agroecological zone. Rhizobacteria strains were isolated from these samples and biochemically characterized. These strains were analyzed for some of their PGPR traits like ammonia production and hydrogen cyanide following conventional methods. Microbiological investigation of these samples has shown that maize rhizospheres in central and northern Benin contain a high diversity of microorganisms. A total of nine species of maize Plant Growth Promoting Rhizobacteria were identified. Those PGPR include five Bacillus species (B. polymyxa, B. pantothenticus, B. anthracis, B. thuringiensis, and B. circulans, three Pseudomonas species (P. cichorii, P. putida, and P. syringae, and Serratia marcescens. The microbial diversity does not depend on the soil types. The microbial density, generally high, varies according to both soil types and agroecological zones. All Serratia strains (100% have produced ammonia, whereas 80% of Bacillus and 77.77% of Pseudomonas produced this metabolite. The hydrogen cyanide was produced by all isolates (100% independent of their genus. These results suggest the possibility to use these rhizobacteria as biological fertilizers to increase maize production.

  1. Origin of the Sinai-Negev erg, Egypt and Israel: mineralogical and geochemical evidence for the importance of the Nile and sea level history

    Science.gov (United States)

    Muhs, Daniel R.; Roskin, Joel; Tsoar, Haim; Skipp, Gary; Budahn, James R.; Sneh, Amihai; Porat, Naomi; Stanley, Jean-Daniel; Katra, Itzhak; Blumberg, Dan G.

    2013-01-01

    The Sinai–Negev erg occupies an area of 13,000 km2 in the deserts of Egypt and Israel. Aeolian sand of this erg has been proposed to be derived from the Nile Delta, but empirical data supporting this view are lacking. An alternative source sediment is sand from the large Wadi El Arish drainage system in central and northern Sinai. Mineralogy of the Negev and Sinai dunes shows that they are high in quartz, with much smaller amounts of K-feldspar and plagioclase. Both Nile Delta sands and Sinai wadi sands, upstream of the dunes, also have high amounts of quartz relative to K-feldspar and plagioclase. However, Sinai wadi sands have abundant calcite, whereas Nile Delta sands have little or no calcite. Overall, the mineralogical data suggest that the dunes are derived dominantly from the Nile Delta, with Sinai wadi sands being a minor contributor. Geochemical data that proxy for both the light mineral fraction (SiO2/10–Al2O3 + Na2O + K2O–CaO) and heavy mineral fraction (Fe2O3–MgO–TiO2) also indicate a dominant Nile Delta source for the dunes. Thus, we report here the first empirical evidence that the Sinai–Negev dunes are derived dominantly from the Nile Delta. Linkage of the Sinai–Negev erg to the Nile Delta as a source is consistent with the distribution of OSL ages of Negev dunes in recent studies. Stratigraphic studies show that during the Last Glacial period, when dune incursions in the Sinai–Negev erg began, what is now the Nile Delta area was characterized by a broad, sandy, minimally vegetated plain, with seasonally dry anastomosing channels. Such conditions were ideal for providing a ready source of sand for aeolian transport under what were probably much stronger glacial-age winds. With the post-glacial rise in sea level, the Nile River began to aggrade. Post-glacial sedimentation has been dominated by fine-grained silts and clays. Thus, sea level, along with favorable climatic conditions, emerges as a major influence on the timing of dune

  2. Gene diversity, agroecological structure and introgression patterns among village chicken populations across North, West and Central Africa

    Directory of Open Access Journals (Sweden)

    Leroy Grégoire

    2012-05-01

    Full Text Available Abstract Background Chickens represent an important animal genetic resource for improving farmers’ income in Africa. The present study provides a comparative analysis of the genetic diversity of village chickens across a subset of African countries. Four hundred seventy-two chickens were sampled in 23 administrative provinces across Cameroon, Benin, Ghana, Côte d’Ivoire, and Morocco. Geographical coordinates were recorded to analyze the relationships between geographic distribution and genetic diversity. Molecular characterization was performed with a set of 22 microsatellite markers. Five commercial lines, broilers and layers, were also genotyped to investigate potential gene flow. A genetic diversity analysis was conducted both within and between populations. Results High heterozygosity levels, ranging from 0.51 to 0.67, were reported for all local populations, corresponding to the values usually found in scavenging populations worldwide. Allelic richness varied from 2.04 for a commercial line to 4.84 for one population from Côte d’Ivoire. Evidence of gene flow between commercial and local populations was observed in Morocco and in Cameroon, which could be related to long-term improvement programs with the distribution of crossbred chicks. The impact of such introgressions seemed rather limited, probably because of poor adaptation of exotic birds to village conditions, and because of the consumers’ preference for local chickens. No such gene flow was observed in Benin, Ghana, and Côte d’Ivoire, where improvement programs are also less developed. The clustering approach revealed an interesting similarity between local populations found in regions sharing high levels of precipitation, from Cameroon to Côte d’Ivoire. Restricting the study to Benin, Ghana, and Côte d’Ivoire, did not result in a typical breed structure but a south-west to north-east gradient was observed. Three genetically differentiated areas (P  Conclusions

  3. Significance of zircon U-Pb ages from the Pescadero felsite, west-central California coast ranges

    Science.gov (United States)

    McLaughlin, Robert J.; Moore, Diane E.; ,; Martens, UWE C.; Clark, J.C.

    2011-01-01

    Weathered felsite is associated with the late Campanian–Maastrichtian Pigeon Point Formation near Pescadero, California. Poorly exposed, its age and correlation are uncertain. Is it part of the Pigeon Point section west of the San Gregorio–Hosgri fault? Does it rest on Nacimiento block basement? Is it dextrally offset from the Oligocene Cambria Felsite, ∼185 km to the southeast? Why is a calc-alkaline hypabyssal igneous rock intrusive into the outboard accretionary prism? To address these questions, we analyzed 43 oscillatory-zoned zircon crystals from three incipiently recrystallized pumpellyite ± prehnite ± laumontite-bearing Pescadero felsite samples by sensitive high-resolution ion microprobe–reverse geometry (SHRIMP-RG) and laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) techniques. Thirty-three zircons gave late Mesozoic U-Pb ages, with single-grain values ranging from 81 to 167 Ma; ten have pre-Mesozoic, chiefly Proterozoic ages. A group of the four youngest Pescadero zircons yielded an apparent maximum igneous age of ca. 86–90 Ma. Reflecting broad age scatter and presence of partly digested sandstone inclusions, we interpret the rest of the zircons (perhaps all) as xenocrysts. Twenty-three zircons were separated and analyzed from two samples of the similar Cambria Felsite, yielding a unimodal 27 Ma U-Pb age. Clearly, the origin of the Upper Oligocene Cambria Felsite is different from that of the Upper Cretaceous Pescadero felsite; these rocks are not correlated, and do not constrain displacement along the San Gregorio–Hosgri fault. Peak ages differ slightly, but relative probability curves for Mesozoic and pre-Mesozoic Pescadero zircons compare well, for example, with abundant U-Pb age data for detrital zircons from Franciscan metaclastic strata ∼100 km to the east in the Diablo Range–San Francisco Bay area, San Joaquin Great Valley Group turbidites, Upper Cretaceous Nacimiento block Franciscan strata, and Upper

  4. Territorial and mating behavior in Phyllomedusa azurea (Anura: Hylidae at a temporary pond in west-central Brazil

    Directory of Open Access Journals (Sweden)

    Taís Borges Costa

    2010-12-01

    Full Text Available We studied territorial and mating behavior of Phyllomedusa azurea in the municipality of Cocalzinho de Goiás, Goiás, which is locatedin central Brazil. During the mating season, male P. azurea engage in territorial behavior that is associated with vocalizations—advertisement, territorial, fight, or a combination of two more of these. When one male frog invades the territory of another, they commonly emit of territorial calls and engage in physical combat. Three main behavioral traits were observed in mating males—viz., “male-singer,” “active search” and “male-shifter.” Malesvocalize during the amplexus and oviposition. No aggression between females P. azurea was observed.

  5. The research station "Vaskiny Dachi", Central Yamal, West Siberia, Russia – a review of 25 years of permafrost studies

    Directory of Open Access Journals (Sweden)

    Marina O. Leibman

    2015-03-01

    Full Text Available The research station "Vaskiny Dachi" on the Yamal Peninsula was established in 1988. Activities aimed at monitoring of permafrost and related environmental features under a relatively low level of nature disturbances caused by gas field development. Cryogenic processes that may affect the environment and their structures have been of primary interest. Landslides are the most common cryogenic processes in Central Yamal in general and also in the proximity of the station. Field surveys of numerous landslides, analysis of their dependence on climatic parameters and their fluctuations resulted in novel classification of cryogenic landslides based on mechanisms of their development. Dating by radiocarbon and dendrochronology allows the separation of cycles of landslide activation. Cryogenic landslides control the development of other processes, such as thermal erosion, river channel erosion and thermokarst. It also affects topography, vegetation pattern, geochemistry of vegetation, ground water and soils. As a result, permafrost parameters, specifically active layer depth and ground temperature, moisture and ice content in the active layer, depend indirectly on landsliding. Monitoring within the framework of the main programs of the International Permafrost Association, such as Circumarctic Active Layer Monitoring (CALM, since 1993 and Thermal State of Permafrost (TSP, since 2011, play an important role among the research activities. From the collected data one can conclude that ground temperature increased on average by about 1 °C since the 1990s. At the same time, active layer fluctuations do not exactly follow the air temperature changes. Spatial changes in ground temperature are controlled by the redistribution of snow which is resulting from strong winds characteristic for tundra environments and the highly dissected relief of Central Yamal. Temporal variations rather depend on air temperature fluctuations but the rate differs in various

  6. How many species and under what names? Using DNA barcoding and GenBank data for west Central African amphibian conservation.

    Directory of Open Access Journals (Sweden)

    Jessica L Deichmann

    Full Text Available Development projects in west Central Africa are proceeding at an unprecedented rate, often with little concern for their effects on biodiversity. In an attempt to better understand potential impacts of a road development project on the anuran amphibian community, we conducted a biodiversity assessment employing multiple methodologies (visual encounter transects, auditory surveys, leaf litter plots and pitfall traps to inventory species prior to construction of a new road within the buffer zone of Moukalaba-Doudou National Park, Gabon. Because of difficulties in morphological identification and taxonomic uncertainty of amphibian species observed in the area, we integrated a DNA barcoding analysis into the project to improve the overall quality and accuracy of the species inventory. Based on morphology alone, 48 species were recognized in the field and voucher specimens of each were collected. We used tissue samples from specimens collected at our field site, material available from amphibians collected in other parts of Gabon and the Republic of Congo to initiate a DNA barcode library for west Central African amphibians. We then compared our sequences with material in GenBank for the genera recorded at the study site to assist in identifications. The resulting COI and 16S barcode library allowed us to update the number of species documented at the study site to 28, thereby providing a more accurate assessment of diversity and distributions. We caution that because sequence data maintained in GenBank are often poorly curated by the original submitters and cannot be amended by third-parties, these data have limited utility for identification purposes. Nevertheless, the use of DNA barcoding is likely to benefit biodiversity inventories and long-term monitoring, particularly for taxa that can be difficult to identify based on morphology alone; likewise, inventory and monitoring programs can contribute invaluable data to the DNA barcode library and

  7. Description of the physical environment and coal-mining history of west-central Indiana, with emphasis on six small watersheds

    Science.gov (United States)

    Martin, Jeffrey D.; Crawford, Charles G.; Duwelius, R.F.; Renn, D.E.

    1987-01-01

    Information on the geology, geomorphology, soils, climate, hydrology, water use, land use, population, and coal mining history of Clay, Owen, Sullivan, and Vigo Counties in Indiana is summarized. Site-specific information is given on the morphology , geology, soils, land use, coal mining history, and hydrologic instrumentation of the six watersheds which are each less than 3 sq mi in area. The Wabash, White, and Eel Rivers are the major drainages in west-central Indiana. Average annual precipitation is about 39.5 in/yr and average annual runoff is about 13 in/yr. The most productive aquifers are confined or unconfined outwash aquifers located along the major rivers. Bedrock aquifers are regionally insignificant but are the sole source of groundwater for areas that lack outwash, alluvium, or sand and gravel lenses in till. Indiana has more than 17 billion short tons of recoverable coal reserves; about 11% can be mined by surface methods. Almost half of Indiana 's surface reserves are in Clay, Owen, Sullivan, and Vigo Counties. More than 50,000 acres in west-central Indiana have been disturbed by surface coal mining from 1941 through 1980. Big Slough and Hooker Creek are streams that drain unmined, agricultural watersheds. Row-crop corn and soybeans are the principal crops. Soils are moderately well drained silt loams, and the watersheds well developed dendritic drainage systems. Unnamed tributaries drain mined and reclaimed watersheds. Ridges of mine spoil have been graded to a gently rolling topography. Soils are well drained and consist of 6 to 12 inches of silt-loam topsoil that was stockpiled and then replaced over shale and sandstone fragments of the graded mine spoil. Grasses and legumes form the vegetative cover in each watershed. Pond Creek and an unnamed tributary to Big Branch are streams that drain mined and unreclaimed watersheds. Soils are very well drained shaly silty loams that have formed on steeply sloping banks. Both watersheds contain numerous

  8. Distribution of inorganic arsenic species in groundwater from Central-West Part of Santa Fe Province, Argentina

    International Nuclear Information System (INIS)

    Sigrist, Mirna; Albertengo, Antonela; Brusa, Lucila; Beldoménico, Horacio; Tudino, Mabel

    2013-01-01

    Highlights: • Study on inorganic arsenic species in groundwater for drinking in Santa Fe Argentina. • This information is currently scarce or absent in the region. • An analytical methodology based on SPE-FI-HGAAS coupling was used for speciation. • Information is given for a more accurate interpretation of the toxicological impact. - Abstract: The distribution of inorganic arsenic species in groundwater used as drinking water supply by the peri-urban and rural population from central-western area of Santa Fe Province, Argentina, was studied. An analytical methodology based on an online system of atomic absorption spectrometry with hydride generation and flow injection (FI-HGAAS) was used for total inorganic arsenic determination. For speciation purposes, the distinction between As(V) and As(III) was performed through the on line coupling of FI-HGAAS to a solid phase system based on an anionic exchanger able to retain As(V) as oxyanion, allowing As(III) to be selectively determined. The concentration of As(V) was calculated as the difference between total arsenic and As(III) concentrations. Effects of matrix interference due to the nonselective behavior of the exchange resins were carefully laid. Results for 59 samples collected from 27 localities showed an almost exclusive predominance of pentavalent forms

  9. Bushmeat Hunting and Zoonotic Transmission of Simian T-Lymphotropic Virus 1 in Tropical West and Central Africa.

    Science.gov (United States)

    Mossoun, Arsène; Calvignac-Spencer, Sébastien; Anoh, Augustin E; Pauly, Maude S; Driscoll, Daniel A; Michel, Adam O; Nazaire, Lavry Grah; Pfister, Stefan; Sabwe, Pascale; Thiesen, Ulla; Vogler, Barbara R; Wiersma, Lidewij; Muyembe-Tamfum, Jean-Jacques; Karhemere, Stomy; Akoua-Koffi, Chantal; Couacy-Hymann, Emmanuel; Fruth, Barbara; Wittig, Roman M; Leendertz, Fabian H; Schubert, Grit

    2017-05-15

    Simian T-lymphotropic virus 1 (STLV-1) enters human populations through contact with nonhuman primate (NHP) bushmeat. We tested whether differences in the extent of contact with STLV-1-infected NHP bushmeat foster regional differences in prevalence of human T-lymphotropic virus 1 (HTLV-1). Using serological and PCR assays, we screened humans and NHPs at two Sub-Saharan African sites where subsistence hunting was expected to be less (Taï region, Côte d'Ivoire [CIV]) or more (Bandundu region, Democratic Republic of the Congo [DRC]) developed. Only 0.7% of human participants were infected with HTLV-1 in CIV ( n = 574), and 1.3% of humans were infected in DRC ( n = 302). Two of the Ivorian human virus sequences were closely related to simian counterparts, indicating ongoing zoonotic transmission. Multivariate analysis of human demographic parameters and behavior confirmed that participants from CIV were less often exposed to NHPs than participants from DRC through direct contact, e.g., butchering. At the same time, numbers of STLV-1-infected NHPs were higher in CIV (39%; n = 111) than in DRC (23%; n = 39). We conclude that similar ultimate risks of zoonotic STLV-1 transmission-defined as the product of prevalence in local NHP and human rates of contact to fresh NHP carcasses-contribute to the observed comparable rates of HTLV-1 infection in humans in CIV and DRC. We found that young adult men and mature women are most likely exposed to NHPs at both sites. In view of the continued difficulties in controlling zoonotic disease outbreaks, the identification of such groups at high risk of NHP exposure may guide future prevention efforts. IMPORTANCE Multiple studies report a high risk for zoonotic transmission of blood-borne pathogens like retroviruses through contact with NHPs, and this risk seems to be particularly high in tropical Africa. Here, we reveal high levels of exposure to NHP bushmeat in two regions of Western and Central tropical Africa. We provide evidence

  10. Surficial geologic map of the Heath-Northfield-Southwick-Hampden 24-quadrangle area in the Connecticut Valley region, west-central Massachusetts

    Science.gov (United States)

    Stone, Janet R.; DiGiacomo-Cohen, Mary L.

    2010-01-01

    The surficial geologic map layer shows the distribution of nonlithified earth materials at land surface in an area of 24 7.5-minute quadrangles (1,238 mi2 total) in west-central Massachusetts. Across Massachusetts, these materials range from a few feet to more than 500 ft in thickness. They overlie bedrock, which crops out in upland hills and as resistant ledges in valley areas. The geologic map differentiates surficial materials of Quaternary age on the basis of their lithologic characteristics (such as grain size and sedimentary structures), constructional geomorphic features, stratigraphic relationships, and age. Surficial materials also are known in engineering classifications as unconsolidated soils, which include coarse-grained soils, fine-grained soils, and organic fine-grained soils. Surficial materials underlie and are the parent materials of modern pedogenic soils, which have developed in them at the land surface. Surficial earth materials significantly affect human use of the land, and an accurate description of their distribution is particularly important for assessing water resources, construction aggregate resources, and earth-surface hazards, and for making land-use decisions. This work is part of a comprehensive study to produce a statewide digital map of the surficial geology at a 1:24,000-scale level of accuracy. This report includes explanatory text, quadrangle maps at 1:24,000 scale (PDF files), GIS data layers (ArcGIS shapefiles), metadata for the GIS layers, scanned topographic base maps (TIF), and a readme.txt file.

  11. Clutch and egg allometry of the turtle Mauremys leprosa (Chelonia: Geoemydidae) from a polluted peri-urban river in west-central Morocco

    Science.gov (United States)

    Naimi, Mohamed; Znari, Mohammed; Lovich, Jeffrey E.; Feddadi, Youssef; Baamrane, Moulay Abdeljalil Ait

    2012-01-01

    We examined the relationships of clutch size (CS) and egg size to female body size (straight-line carapace length, CL) in a population of the turtle Mauremys leprosa from a polluted segment of oued (river) Tensift in arid west-central Morocco. Twenty-eight adult females were collected in May–July, 2009 and all were gravid. Each was weighed, measured, humanely euthanized and then dissected. Oviductal shelled eggs were removed, weighed (egg mass, EM) and measured for length (EL) and width (EW). Clutch mass (CM) was the sum of EM for a clutch. Pelvic aperture width (PAW) was measured at the widest point between the ilia bones through which eggs must pass at oviposition. The smallest gravid female had a CL of 124.0 mm. Mean CS was relatively large (9.7±2.0 eggs, range: 3–13) and may reflect high productivity associated with polluted (eutrophic) waters. Regression analyses were conducted using log-transformed data. CM increased isometrically with maternal body size. CS, EW and EM were all significantly hypoallometric in their relationship with CL. EL did not change significantly with increases in CL. EW increased at a hypoallometric rate with increasing CL but was unconstrained by PAW since the widest egg was smaller than the narrowest PAW measurement when excluding the three smallest females. Smaller females may have EW constrained by PAW. As females increase in size they increase both clutch size and egg width in contradiction to predictions of optimal egg size theory.

  12. Assessment of the food habits of the Moroccan dorcas gazelle in M'Sabih Talaa, west central Morocco, using the trnL approach.

    Directory of Open Access Journals (Sweden)

    Moulay Abdeljalil Ait Baamrane

    Full Text Available Food habits of the Moroccan dorcas gazelle, Gazella dorcas massaesyla, previously investigated in the 1980s using microhistological fecal analysis, in the M'Sabih Talaa Reserve, west central Morocco, were re-evaluated over three seasons (spring, summer and autumn 2009 using the trnL approach to determine the diet composition and its seasonal variation from fecal samples. Taxonomic identification was carried out using the identification originating from the database built from EMBL and the list of plant species within the reserve. The total taxonomic richness in the reserve was 130 instead of 171 species in the 1980s. The diet composition revealed to be much more diversified (71 plant taxa belonging to 57 genus and 29 families than it was 22 years ago (29 identified taxa. Thirty-four taxa were newly identified in the diet while 13 reported in 1986-87 were not found. Moroccan dorcas gazelle showed a high preference to Acacia gummifera, Anagallis arvensis, Glebionis coronaria, Cladanthus arabicus, Diplotaxis tenuisiliqua, Erodium salzmannii, Limonium thouini, Lotus arenarius and Zizyphus lotus. Seasonal variations occurred in both number (40-41 taxa in spring-summer and 49 taxa in autumn vs. respectively 23-22 and 26 in 1986-1987 and taxonomic type of eaten plant taxa. This dietary diversification could be attributed either to the difference in methods of analysis, trnL approach having a higher taxonomic resolution, or a potential change in nutritional quality of plants over time.

  13. Digital geologic map and Landsat image map of parts of Loralai, Sibi, Quetta, and Khuzar Divisions, Balochistan Province, west-central Pakistan

    Science.gov (United States)

    Maldonado, Florian; Menga, Jan Mohammad; Khan, Shabid Hasan; Thomas, Jean-Claude

    2011-01-01

    This generalized digital geologic map of west-central Pakistan is a product of the Balochistan Coal-Basin Synthesis Study, which was part of a cooperative program of the Geological Survey of Pakistan and the United States Geological Survey. The original nondigital map was published by Maldonado and others (1998). Funding was provided by the Government of Pakistan and the United States Agency for International Development. The sources of geologic map data are primarily 1:253,440-scale geologic maps obtained from Hunting Survey Corporation (1961) and the geologic map of the Muslim Bagh Ophiolite Complex and Bagh Complex area. The geology was modified based on reconnaissance field work and photo interpretation of 1:250,000-scale Landsat Thematic Mapper photo image. The descriptions and thicknesses of map units were based on published and unpublished reports and converted to U.S. Geological Survey format. In the nomenclature of the Geological Survey of Pakistan, there is both an Urak Group and an Urak Formation.

  14. Adsorption kinetics of CO2, CH4, and their equimolar mixture on coal from the Black Warrior Basin, West-Central Alabama

    Science.gov (United States)

    Gruszkiewicz, M.S.; Naney, M.T.; Blencoe, J.G.; Cole, D.R.; Pashin, J.C.; Carroll, R.E.

    2009-01-01

    Laboratory experiments were conducted to investigate the adsorption kinetic behavior of pure and mixed gases (CO2, CH4, approximately equimolar CO2 + CH4 mixtures, and He) on a coal sample obtained from the Black Warrior Basin at the Littleton Mine (Twin Pine Coal Company), Jefferson County, west-central Alabama. The sample was from the Mary Lee coal zone of the Pottsville Formation (Lower Pennsylvanian). Experiments with three size fractions (45-150????m, 1-2??mm, and 5-10??mm) of crushed coal were performed at 40????C and 35????C over a pressure range of 1.4-6.9??MPa to simulate coalbed methane reservoir conditions in the Black Warrior Basin and provide data relevant for enhanced coalbed methane recovery operations. The following key observations were made: (1) CO2 adsorption on both dry and water-saturated coal is much more rapid than CH4 adsorption; (2) water saturation decreases the rates of CO2 and CH4 adsorption on coal surfaces, but it appears to have minimal effects on the final magnitude of CO2 or CH4 adsorption if the coal is not previously exposed to CO2; (3) retention of adsorbed CO2 on coal surfaces is significant even with extreme pressure cycling; and (4) adsorption is significantly faster for the 45-150????m size fraction compared to the two coarser fractions. ?? 2008 Elsevier B.V.

  15. Monitoring and modeling of sinkhole-related subsidence in west-central Florida mapped from InSAR and surface observations

    Science.gov (United States)

    Kiflu, H.; Oliver-Cabrera, T.; Robinson, T.; Wdowinski, S.; Kruse, S.

    2017-12-01

    Sinkholes in Florida cause millions of dollars in damage to infrastructure each year. Methods of early detection of sinkhole-related subsidence are clearly desirable. We have completed two years of monitoring of selected sinkhole-prone areas in west central Florida with XXX data and analysis with XXX algorithms. Filters for selecting targets with high signal-to-noise ratio and subsidence over this time window (XX-2015-XX-2017) are being used to select sites for ground study. A subset of the buildings with InSAR-detected subsidence indicated show clear structural indications of subsidence in the form of cracks in walls and roofs. Comsol Multiphysics models have been developed to describe subsidence at the rates identified from the InSAR analysis (a few mm/year) and on spatial scales observed from surface observations, including structural deformation of buildings and ground penetrating radar images of subsurface deformation (length scales of meters to tens of meters). These models assume cylindrical symmetry and deformation of elastic and poroelastic layers over a growing sphering void.

  16. Hepatitis C as a risk factor for diabetes type 2: lack of evidence in a hospital in central-west Brazil

    Directory of Open Access Journals (Sweden)

    Luce Marina Freires Corrêa da Costa

    Full Text Available In order to assess the importance of HCV infection as a possible risk factor for type 2 diabetes mellitus, a case-control study was conducted, comparing the prevalence of HCV infection among diabetic and non-diabetic patients. Diabetic outpatients attending to a University Hospital in Central-West Brazil were evaluated between April and October 2005. A control group composed by patients from the same institution was matched by gender and age. Candidates to control group were included only if fasting glucose measures were under 100 mg/dL. Diabetics and controls had blood samples taken in order to test for antibodies against HCV (anti-HCV by enzyme-immunoassay. Polymerase chain reaction and immunoblot were performed to confirm the anti-HCV status. Each group included 206 participants. Despite of the groups were in general comparable. The diabetics had a greater body mass average and smaller family income. The prevalence of confirmed anti-HCV in the diabetic group was of 1.4%, which was similar to the controls (1%. Finding statistical difference may have been hampered by the low frequency of HCV infection in both groups. It was not possible to demonstrate a role of HCV as an etiologic factor in type 2 diabetes, since HCV infected patients represented a small portion of the overall diabetes cases. This finding does not allow to recommend regular screening for HCV infection in type 2 diabetics in this region.

  17. Comparative Hydrology, Water Quality, and Ecology of Selected Natural and Augmented Freshwater Wetlands in West-Central Florida

    Science.gov (United States)

    Lee, T.M.; Haag, K.H.; Metz, P.A.; Sacks, L.A.

    2009-01-01

    Comparing altered wetlands to natural wetlands in the same region improves the ability to interpret the gradual and cumulative effects of human development on freshwater wetlands. Hydrologic differences require explicit attention because they affect nearly all wetland functions and are an overriding influence on other comparisons involving wetland water quality and ecology. This study adopts several new approaches to quantify wetland hydrologic characteristics and then describes and compares the hydrology, water quality, and ecology of 10 isolated freshwater marsh and cypress wetlands in the mantled karst landscape of central Florida. Four of the wetlands are natural, and the other six have water levels indirectly lowered by ground-water withdrawals on municipally owned well fields. For several decades, the water levels in four of these altered wetlands have been raised by adding ground water in a mitigation process called augmentation. The two wetlands left unaugmented were impaired because their water levels were lowered. Multifaceted comparisons between the altered and natural wetlands are used to examine differences between marshes and cypress wetlands and to describe the effects of augmentation practices on the wetland ecosystems. In the karstic geologic setting, both natural and altered wetlands predominantly lost water to the surficial aquifer. Water leaking out of the wetlands created water-table mounds below the wetlands. The smallest mounds radiated only slightly beyond the vegetated area of the wetlands. The largest and steepest mounds occurred below two of the augmented wetlands. There, rapid leakage rates regenerated a largely absent surficial aquifer and mounds encompassed areas 7-8 times as large as the wetlands. Wetland leakage rates, estimated using a daily water-budget analysis applied over multiple years and normalized as inches per day, varied thirtyfold from the slowest leaking natural wetland to the fastest leaking augmented wetland. Leakage

  18. Biological explorations of Sinai: flora and fauna of Wadi Isla and ...

    African Journals Online (AJOL)

    A comprehensive survey was accomplished for two of the most important and beautiful wadis in the Sinai, Wadi Isla & Hebran. The biodiversity of the two wadis are surveyed including plant species and their associated insects, spiders and scorpions. The list includes 20 plant families with 51 species, 8 insect orders with 54 ...

  19. Depositional environments of the Jurassic Maghara main coal seam in north central Sinai, Egypt

    Science.gov (United States)

    Edress, Nader Ahmed Ahmed; Opluštil, Stanislav; Sýkorová, Ivana

    2018-04-01

    Twenty-eight channel samples with a cumulative thickness of about 4 m collected from three sections of the Maghara main coal seam in the middle Jurassic Safa Formation have been studied for their lithotype and maceral compositions to reconstruct the character of peat swamp, its hydrological regime and the predominating type of vegetation. Lithotype composition is a combination of dully lithotypes with duroclarain (19% of total cumulative thickness), clarodurain (15%), black durain (15%), and shaly coal (15%) and bright lithotypes represented by clarain (23%), vitrain (12%) and a small proportion of wild fire-generated fusain (1%). Maceral analyses revealed the dominance of vitrinite (70.6% on average), followed by liptinite (25.2%) and inertinite (8.1%). Mineral matter content is ∼9% on average and consists of clay, quartz and pyrite concentrate mostly at the base and the roof of the seam. Dominantly vitrinite composition of coal and extremely low fire- and oxidation-borne inertinite content, together with high Gelification Indices imply predomination of waterlogged anoxic conditions in the precursing mire with water tables mostly above the peat surface throughout most of the time during peat swamp formation. Increases in collotelinite contents and Tissue Preservation Index up the section, followed by a reversal trend in upper third of the coal section, further accompanied by a reversal trend in collodetrinite, liptodetrinite, alginite, sporinite and clay contents records a transition from dominately limnotelmatic and limnic at the lower part to dominately limnotelmatic with increase telmatic condition achieved in the middle part of coal. At the upper part of coal seam an opposite trend marks the return to limnic and limnotelmatic conditions in the final phases of peat swamp history and its subsequent inundation. The proportion of arborescent (mostly coniferous) and herbaceous vegetation varied throughout the section of the coal with tendency of increasing density of arborescent vegetation to the middle part of the coal seam section. The intercalation of coal in shallow marine strata implies that peat swamp precursor formed in a coastal setting, probably on delta plain or lagoon. Its formation was controlled by water table changes driven by sea level fluctuations that created an accommodation space necessary for preservation of peat.

  20. Geology of groundwater occurrences of the Lower Cretaceus sandstone aquifer in East Central Sinai, Egypt

    Directory of Open Access Journals (Sweden)

    Saad Younes Ghoubachi

    2017-01-01

    Full Text Available The present study focused on investigating the impact of geological setting on the groundwater occurrences of the Lower Cretaceous sandstone aquifer (Malha. The Lower Cretaceous sandstone aquifer is subdivided into 3 units according to their lithological characters for the first time in this present work. The study area is dissected by normal faults with their downthrown sides due north direction. The groundwater flows from southeast recharge area (outcrop to the northwest direction with an average hydraulic gradient of 0.0035. The hydraulic parameters of the Lower Cretaceous sandstone aquifer were determined and evaluated through 7 pumping tests carried out on productive wells. The Lower Cretaceous aquifer in the study area is characterized by moderate to high potential. The calculated groundwater volume of the Lower Cretaceous aquifer (6300 km2 in the study area attains about 300 bcm, while the estimated recharge to the same aquifer reaches about 44,500 m3/day with an annual recharge of 16 mcm/year. Expended Durov diagram plot revealed that the groundwater has been evolved from Mg-SO4 and Mg-Cl dissolution area types that eventually reached a final stage of evolution represented by a Na-Cl water type. This diagram helps also in identifying groundwater flow direction. The groundwater salinity ranges from 1082 ppm (Shaira to 1719 ppm (Nakhl, in the direction of groundwater movement towards north.

  1. New Academic Partnerships in Global Health: Innovations at Mount Sinai School of Medicine

    Science.gov (United States)

    Landrigan, Philip J.; Ripp, Jonathan; Murphy, Ramon J. C.; Claudio, Luz; Jao, Jennifer; Hexom, Braden; Bloom, Harrison G.; Shirazian, Taraneh; Elahi, Ebby; Koplan, Jeffrey P.

    2011-01-01

    Global health has become an increasingly important focus of education, research, and clinical service in North American universities and academic health centers. Today there are at least 49 academically based global health programs in the United States and Canada, as compared with only one in 1999. A new academic society, the Consortium of Universities for Global Health, was established in 2008 and has grown significantly. This sharp expansion reflects convergence of 3 factors: (1) rapidly growing student and faculty interest in global health; (2) growing realization–powerfully catalyzed by the acquired immune deficiency syndrome epidemic, the emergence of other new infections, climate change, and globalization–that health problems are interconnected, cross national borders, and are global in nature; and (3) rapid expansion in resources for global health. This article examines the evolution of the concept of global health and describes the driving forces that have accelerated interest in the field. It traces the development of global health programs in academic health centers in the United States. It presents a blueprint for a new school-wide global health program at Mount Sinai School of Medicine. The mission of that program, Mount Sinai Global Health, is to enhance global health as an academic field of study within the Mount Sinai community and to improve the health of people around the world. Mount Sinai Global Health is uniting and building synergies among strong, existing global health programs within Mount Sinai; it is training the next generation of physicians and health scientists to be leaders in global health; it is making novel discoveries that translate into blueprints for improving health worldwide; and it builds on Mount Sinai’s long and proud tradition of providing medical and surgical care in places where need is great and resources few. PMID:21598272

  2. Some Aspects of the Population Biology of the Green Tiger Prawn Penaeus semisulcatus (De Haan, 1844 from Pilar and Capiz Bays, Northern Panay, West Central Philippines

    Directory of Open Access Journals (Sweden)

    Karen A Villarta

    2006-06-01

    Full Text Available This study is a first report on the population biology of the green tiger prawn Penaeus semisulcatus (de Haan from northern Panay, west central Philippines. The study was conducted for eight months (May to December 2002 whereby total lengths of both male and female P. semisulcatus of various sizes were measured monthly from the catches of municipal trawlers operating at Pilar and Capiz Bays. Based on the Bhattacharya method, a mean growth rate of 0.78 ± 0.28 and 1.45 ± 0.39 mm/day were estimated for males and females, respectively. Using the ELEFAN I method, growth parameters derived for males were L∞ = 263 mm, k = 0.7/yr and a growth index (Ø' of 4.69. On the other hand, growth parameters derived for females were L∞ = 271 mm, k = 1.6/yr and a growth index (Ø' of 5.07.Based on length-converted catch curve analysis, the total mortality (Z of the male population is estimated to be 3.61/yr while that of the females is 5.65/yr. Male prawns showed a higher exploitation rate (0.53 compared to that of the females (0.35 indicating the susceptibility of males to fishing. This study also revealed that trawlers in Pilar and Capiz Bays are already getting small sizes of prawns, without allowing them to reach sexual maturity. Hence, there is a need to increase the present mesh size (2.5 cm of the cod end of trawls in order to avoid growth overfishing, which may occur with continued increase in fishing effort. Furthermore, the recruitment pattern showed two pulses of unequal strengths and time, dividing the year into a 7-5 month pattern. The said pattern, especially for females, may have resulted from a major and minor spawning peak of the said species during the months of June-September and January.

  3. A 900-Year Diatom and Chrysophyte Record of Spring Mixing and Summer Stratification From Varved Lake Mina, West-Central Minnesota, USA

    Science.gov (United States)

    St. Jacques, J.; Cumming, B. F.; Smol, J. P.

    2009-05-01

    A high-resolution, independent pollen-inferred paleoclimate record and direct algal seasonality data from the actual time of sediment deposition are used to interpret the high-resolution diatom and chrysophyte record of varved Lake Mina, west-central Minnesota, USA during AD 1116-2002. This direct algal seasonality information was obtained by a new technique of splitting varves into constituent winter-spring and summer lamina, and separately analyzing the siliceous algae in each layer. Analyses of integrated, continuous four-year diatom and chrysophyte samples from a sedimentary sequence show that the time period AD 1116-1478 (i.e. the Atlantic- centered Medieval Climate Anomaly (MCA)) was characterized by periods of vigorous and prolonged spring mixing, suggesting that ice-out occurred early. However, the warm summer temperatures in the MCA, particularly in a massive drought spanning AD 1300-1400, frequently caused the lake to stratify strongly, leading to nutrient depletion. During AD 1478-1870 (i.e. the Atlantic-centered Little Ice Age (LIA)), Lake Mina was characterized by weak spring circulation and increasing nutrient depletion, suggesting late ice-out conditions. Strong summer stratification and/or nutrient depletion in both time periods is shown by the occurrence of the nutrient-poor oligotrophic taxon Cyclotella pseudostelligera. The diatom and chrysophyte assemblages of the period of Euro-American settlement AD 1870-2002 show higher nutrient availability and increased spring mixing intensity, due to forest clearance and increasingly earlier ice-out (documented in regional historical records).

  4. Prevalence of infection with Rickettsia helvetica in Ixodes ricinus ticks feeding on non-rickettsiemic rodent hosts in sylvatic habitats of west-central Poland.

    Science.gov (United States)

    Biernat, Beata; Stańczak, Joanna; Michalik, Jerzy; Sikora, Bożena; Wierzbicka, Anna

    2016-02-01

    Ixodes ricinus is the most prevalent and widely distributed tick species in European countries and plays a principal role in transmission of a wide range of microbial pathogens. It is also a main vector and reservoir of Rickettsia spp. of the spotted fever group with the infection level ranging in Poland from 1.3% to 11.4%. Nevertheless, little research has been conducted so far to identify reservoir hosts for these pathogens. A survey was undertaken to investigate the presence of Rickettsia spp. in wild small rodents and detached I. ricinus. Rodents, Apodemus flavicollis mice and Myodes glareolus voles were captured in typically sylvatic habitats of west-central Poland. Blood samples and collected ticks were analyzed by conventional, semi-nested and nested PCRs. Rickettsial species were determined by sequence analysis of obtained fragments of gltA and 16S rRNA genes. A total of 2339 immature I. ricinus (mostly larvae) were collected from 158 animals. Proportion of hosts carrying ticks was 84%, being higher for A. flavicollis than for M. glareolus. Rickettsia helvetica, the only species identified, was detected in 8% of 12 nymphs and in at least 10.7% (MIR) of 804 larvae investigated. Prevalence of infected ticks on both rodent species was comparable (10.8 vs. 9%). None of blood samples tested was positive for Rickettsia spp. The results showed that in sylvatic habitats the level of infestation with larval I. ricinus was higher in A. flavicollis mice in comparison with M. glareolus voles. They show that R. helvetica frequently occurred in ticks feeding on rodents. Positive immature ticks were collected from non-rickettsiemic hosts what might suggest a vertical route of their infection (transovarial and/or transstadial) or a very short-lasting rickettsiemia in rodents. A natural vertebrate reservoir host for R. helvetica remains to be determined. Copyright © 2015 Elsevier GmbH. All rights reserved.

  5. Two Late Pleistocene climate-driven incision/aggradation rhythms in the middle Dnieper River basin, west-central Russian Plain

    Science.gov (United States)

    Panin, Andrei; Adamiec, Grzegorz; Buylaert, Jan-Pieter; Matlakhova, Ekaterina; Moska, Piotr; Novenko, Elena

    2017-06-01

    In valleys of the River Seim and its tributaries in the middle Dnieper basin (west-central Russian Plain), two low terraces (T1, 10-16 m, and T0, 5-7 m above the river) and a floodplain (2-4 m) with characteristic large and small palaeochannels exist. A range of field and laboratory techniques was applied and ∼30 new numerical ages (OSL and 14C dates) were obtained to establish a chronology of incision and aggradation events that resulted in the current valley morphology. Two full incision/aggradation rhythms and one additional aggradation phase from the previous rhythm were recognized in the Late Pleistocene - Holocene climate cycle. The following events were detected. (1) Late MIS 5 - early MIS 4: aggradation of Terrace T1 following the deep incision at the end of MIS 6. (2) Late MIS 4 (40-30 ka): incision into Terrace T1 below the present-day river, formation of the main scarp in the bottom of the valley between Terrace T1 and Terrace T0/Floodplain levels. (3) MIS 2: aggradation of Terrace T0, lateral migrations of a shallow braided channel located few meters above the present-day river since ∼25 ka through the LGM. (4) 18-13 ka: incision into Terrace T0 below the modern river. Multiple-thread channels concentrated in a single flow that at some places formed large meanders. In the period 15-13 ka, high floods that rose above the present-day floods left large levees and overbank loams on Terrace T0. (5) Younger Dryas - Holocene transition: aggradation up to the modern channel level, transformation of large Late Glacial to small Holocene meanders. The established incision/aggradation rhythms are believed to be manifested over the Central Russian Plain outside the influence of ice sheets in the north and base level changes in the south. The two-phase deepening of the valley occurred in the last quarter of the last glacial epoch but can not be attributed directly to the glacial-interglacial transition. Both the detected incision events correspond to relatively

  6. The redox reaction kinetics of Sinai ore for chemical looping combustion applications

    International Nuclear Information System (INIS)

    Ksepko, Ewelina; Babiński, Piotr; Nalbandian, Lori

    2017-01-01

    Highlights: • Redox reaction kinetics of Fe-Mn-rich Sinai ore was determined by TGA. • The most suitable model for reduction was D3, while R3 for oxidation. • Activation energies 35.3 and 16.70 kJ/mole were determined for reduction and oxidation. • Repetitive redox reactions favor the formation of spinel phases in Sinai ore. • Multiple redox cycles induce formation of extensive porosity of the particles. - Abstract: The objective of this work was to study the use of Sinai ore, a Fe–Mn-based ore from Egypt, as a low-cost oxygen carrier (OC) in Chemical Looping Combustion (CLC). The Sinai ore was selected because it possesses relatively high amounts of iron and manganese oxides. Furthermore, those oxides have low cost, very favorable environmental and thermodynamic properties for the CLC process. The performance of the Sinai ore as an OC in CLC was compared to that of ilmenite (Norway Tellnes mine), the most extensively studied naturally occurring Fe-based mineral. The kinetics of the reduction and oxidation reactions with the two minerals were studied using a thermogravimetric analyzer (TGA). Experiments were conducted under isothermal conditions, with multiple redox cycles, at temperatures between 750 and 950 °C. For the reduction and oxidation reactions, different concentrations of CH_4 (10–25 vol.%) and O_2 (5–20 vol.%) were applied, respectively. The kinetic parameters, such as the activation energy (E_a), pre-exponential factor (A_0), and reaction order (n), were determined for the redox reactions. Furthermore, models of the redox reactions were selected by means of a model-fitting method. For the Sinai ore, the D3 model (3-dimensional diffusion) was suitable for modeling reduction reaction kinetics. The calculated E_a was 35.3 kJ/mole, and the reaction order was determined to be approximately 0.76. The best fit for the oxidation reaction was obtained for the R3 model (shrinking core). The oxidation (regeneration) reaction E_a was equal to 16

  7. Variabilidade e estabilidade na produção de sinais da libras

    Directory of Open Access Journals (Sweden)

    André Nogueira Xavier

    2017-10-01

    Full Text Available Semelhantemente às línguas orais, a realização concreta de palavras nas línguas sinalizadas é suscetível à variação intra e inter-sujeito. Objetivando ilustrar esse fenômeno na língua brasileira de sinais (libras, o presente artigo reporta a análise de três produções de seis itens lexicais da libras por 12 sinalizantes surdos da cidade de São Paulo. Os resultados mostram que, apesar da variabilidade em alguns parâmetros articulatórios, as diferentes produções desses sinais exibe alguma estabilidade. Tal fato deve garantir a percepção destas como diferentes realizações de uma mesma palavra e não como realizações de palavras distintas.

  8. Maximum Kolmogorov-Sinai Entropy Versus Minimum Mixing Time in Markov Chains

    Science.gov (United States)

    Mihelich, M.; Dubrulle, B.; Paillard, D.; Kral, Q.; Faranda, D.

    2018-01-01

    We establish a link between the maximization of Kolmogorov Sinai entropy (KSE) and the minimization of the mixing time for general Markov chains. Since the maximisation of KSE is analytical and easier to compute in general than mixing time, this link provides a new faster method to approximate the minimum mixing time dynamics. It could be interesting in computer sciences and statistical physics, for computations that use random walks on graphs that can be represented as Markov chains.

  9. A Geochemical Mass-Balance Method for Base-Flow Separation, Upper Hillsborough River Watershed, West-Central Florida, 2003-2005 and 2009

    Science.gov (United States)

    Kish, G.R.; Stringer, C.E.; Stewart, M.T.; Rains, M.C.; Torres, A.E.

    2010-01-01

    Geochemical mass-balance (GMB) and conductivity mass-balance (CMB) methods for hydrograph separation were used to determine the contribution of base flow to total stormflow at two sites in the upper Hillsborough River watershed in west-central Florida from 2003-2005 and at one site in 2009. The chemical and isotopic composition of streamflow and precipitation was measured during selected local and frontal low- and high-intensity storm events and compared to the geochemical and isotopic composition of groundwater. Input for the GMB method included cation, anion, and stable isotope concentrations of surface water and groundwater, whereas input for the CMB method included continuous or point-sample measurement of specific conductance. The surface water is a calcium-bicarbonate type water, which closely resembles groundwater geochemically, indicating that much of the surface water in the upper Hillsborough River basin is derived from local groundwater discharge. This discharge into the Hillsborough River at State Road 39 and at Hillsborough River State Park becomes diluted by precipitation and runoff during the wet season, but retains the calcium-bicarbonate characteristics of Upper Floridan aquifer water. Field conditions limited the application of the GMB method to low-intensity storms but the CMB method was applied to both low-intensity and high-intensity storms. The average contribution of base flow to total discharge for all storms ranged from 31 to 100 percent, whereas the contribution of base flow to total discharge during peak discharge periods ranged from less than 10 percent to 100 percent. Although calcium, magnesium, and silica were consistent markers of Upper Floridan aquifer chemistry, their use in calculating base flow by the GMB method was limited because the frequency of point data collected in this study was not sufficient to capture the complete hydrograph from pre-event base-flow to post-event base-flow concentrations. In this study, pre-event water

  10. Evaluation of sarolaner and spinosad oral treatments to eliminate fleas, reduce dermatologic lesions and minimize pruritus in naturally infested dogs in west Central Florida, USA.

    Science.gov (United States)

    Dryden, Michael W; Canfield, Michael S; Niedfeldt, Emily; Kinnon, Amanda; Kalosy, Kimberly; Smith, Amber; Foley, Kaitlin M; Smith, Vicki; Bress, Todd S; Smith, Nicole; Endrizzi, Mike; Login, Joyce

    2017-08-17

    An in-home investigation of naturally flea infested dogs was conducted in West Central Florida, USA to evaluate and compare the effectiveness of two different oral flea adulticides to control flea infestations, minimize dermatologic lesions and reduce pruritus over an 8-week period. Twenty-nine dogs living in 19 homes and another 26 dogs residing in 16 different homes were orally administered either a sarolaner or spinosad chewable, respectively on day 0 and once between days 28-30. Products were administered by study personnel according to label directions. Flea populations on dogs were estimated using visual area counts and flea infestations in the indoor premises were assessed using intermittent-light flea traps on days 0, 7, 14, 21 and once between days 28-30, 40-45, and 56-60. Assessments of dermatologic lesions were conducted monthly during the study and severity of pruritus was evaluated throughout the study on the same schedule as flea counts were conducted. Concurrent treatments for existing skin disease were not allowed. The administration of sarolaner or spinosad reduced flea populations on dogs by 99.0% and 97.3%, respectively within 7 days. Flea infestations on the sarolaner- and spinosad-treated dogs were reduced by > 99% at every counting period from day 14 post-treatment through the end of the 8-week study. At the end of the study 96.4 and 92.0% of the dogs treated with sarolaner and spinosad, respectively were flea-free. Flea populations in the indoor premises were also markedly reduced the end of the study, with 100 and 99.8% reductions in flea trap counts in the sarolaner and spinosad treatment groups, respectively. FAD lesion scores, atopic dermatitis lesions scores (CADESI-4) and pruritus severity scores were also markedly improved with both formulations. An in-home clinical field study conducted during the summer of 2016 in subtropical Florida demonstrated that two-monthly administrations of either sarolaner or spinosad chewables almost

  11. Epidemiology of HIV among female sex workers, their clients, men who have sex with men and people who inject drugs in West and Central Africa

    Science.gov (United States)

    Papworth, Erin; Ceesay, Nuha; An, Louis; Thiam-Niangoin, Marguerite; Ky-Zerbo, Odette; Holland, Claire; Dramé, Fatou Maria; Grosso, Ashley; Diouf, Daouda; Baral, Stefan D

    2013-01-01

    Introduction The West and Central Africa (WCA) sub-region is the most populous region of sub-Saharan Africa (SSA), with an estimated population of 356 million living in 24 countries. The HIV epidemic in WCA appears to have distinct dynamics compared to the rest of SSA, being more concentrated among key populations such as female sex workers (FSWs), men who have sex with men (MSM), people who inject drugs (PWID) and clients of FSWs. To explore the epidemiology of HIV in the region, a systematic review of HIV literature among key populations in WCA was conducted since the onset of the HIV epidemic. Methods We searched the databases PubMed, CINAHL and others for peer-reviewed articles regarding FSWs, MSM and PWID in 24 countries with no date restriction. Inclusion criteria were sensitive and focused on inclusion of any HIV prevalence data among key populations. HIV prevalence was pooled, and in each country key themes were extracted from the literature. Results The search generated 885 titles, 214 abstracts and 122 full articles, of which 76 met inclusion and exclusion criteria providing HIV prevalence data. There were 60 articles characterizing the burden of disease among FSWs, eight for their clients, one for both, six for MSM and one for PWID. The pooled HIV prevalence among FSWs was 34.9% (n=14,388/41,270), among their clients was 7.3% (n=435/5986), among MSM was 17.7% (n=656/3714) and among PWID from one study in Nigeria was 3.8% (n=56/1459). Conclusions The disproportionate burden of HIV among FSWs appears to be consistent from the beginning of the HIV epidemic in WCA. While there are less data for other key populations such as clients of FSWs and MSM, the prevalence of HIV is higher among these men compared to other men in the region. There have been sporadic reports among PWID, but limited research on the burden of HIV among these men and women. These data affirm that the HIV epidemic in WCA appears to be far more concentrated among key populations than the

  12. Surgical pathology in the 20th century at the Mount Sinai Hospital, New York.

    Science.gov (United States)

    Geller, Stephen A

    2008-08-01

    How did the education of surgical pathology, and pathology in general, differ at Mount Sinai? Passing the examination of the American Board of Pathology was never the focus of the department. Learning criteria or quoting references was de-emphasized, but mastery of macroscopic pathology was required, supported in both word and action by two brilliant surgical pathologists, Otani and Kaneko, and by two extraordinary medical pathologists, Klemperer and Popper. Meticulous microscopy emphasized pattern rather than reliance on lists of discrete features. Otani developed a regular "problem case" meeting for a community of pathologists, made up of alumni and other interested pathologists, as well as active department members. These monthly sessions provided the highest level of "continuing medical education." Otani and Kaneko unequivocally believed in learning from cases, and Mount Sinai residents were fortunate both in the one-to-one teaching and in the wealth of material, in all systems, that came to surgical pathology. Outstanding pathologists who came from Mount Sinai settled throughout the country and provided the highest level of diagnoses, but, with the exception of Bernard Wagner, Emanuel Rubin, Fiorenzo Paronetto, Richard Horowitz, Michael Gerber, Marc Rosenblum, Bruce Wenig, Jaishree Jagirdar, Swan Thung, Cesar Moran, Hideko Kamino, Philip LeBoit, Alberto Marchevsky, and others, there were relatively few academic leaders. Otani and Kaneko did not have national reputations. Klemperer, although world renowned, was relatively unassuming, and his disciples numbered almost as many nonpathologists as pathologists. Popper did establish a major center for liver pathology, with students coming from around the world, but did not particularly promote general surgical pathology. Can the Mount Sinai approach still be applied? The decline in the numbers of autopsies performed, the demands for rapid turnaround time, the de-emphasis of gross pathology as newer technologies (eg

  13. Overwintering of Uranotaenia unguiculata adult females in central Europe: a possible way of persistence of the putative new lineage of West Nile virus?

    Czech Academy of Sciences Publication Activity Database

    Rudolf, Ivo; Šebesta, Oldřich; Straková, Petra; Betášová, Lenka; Blažejová, Hana; Venclíková, Kristýna; Seidel, B.; Tóth, S.; Hubálek, Zdeněk; Schaffner, F.

    2015-01-01

    Roč. 31, č. 4 (2015), s. 364-365 ISSN 8756-971X EU Projects: European Commission(XE) 261504 - EDENEXT Institutional support: RVO:68081766 Keywords : mosquito * mosquito-borne viruses * overwintering * Uranotaenia unguiculata * West Nile virus Subject RIV: EE - Microbiology, Virology Impact factor: 0.824, year: 2015

  14. Characteristics of shallow water waves off the central west coast of India before, during and after the onset of the Indian summer monsoon

    Digital Repository Service at National Institute of Oceanography (India)

    Amrutha, M.M.; SanilKumar, V.; Sharma, S.; Singh, J.; Gowthaman, R.; Kankara, R.S.

    by the NOAA-CIRES Climate Diagnostics Center, Boulder, Colorado at http://www.cdc.noaa.gov/. 3. Results and discussion 3.1 Bulk wave parameters The onset of the south-west monsoon season is marked by (1) the establishment of a south-western airflow over...

  15. Precipitation and runoff simulations of select perennial and ephemeral watersheds in the middle Carson River basin, Eagle, Dayton, and Churchill Valleys, west-central Nevada

    Science.gov (United States)

    Jeton, Anne E.; Maurer, Douglas K.

    2011-01-01

    The effect that land use may have on streamflow in the Carson River, and ultimately its impact on downstream users can be evaluated by simulating precipitation-runoff processes and estimating groundwater inflow in the middle Carson River in west-central Nevada. To address these concerns, the U.S. Geological Survey, in cooperation with the Bureau of Reclamation, began a study in 2008 to evaluate groundwater flow in the Carson River basin extending from Eagle Valley to Churchill Valley, called the middle Carson River basin in this report. This report documents the development and calibration of 12 watershed models and presents model results and the estimated mean annual water budgets for the modeled watersheds. This part of the larger middle Carson River study will provide estimates of runoff tributary to the Carson River and the potential for groundwater inflow (defined here as that component of recharge derived from percolation of excess water from the soil zone to the groundwater reservoir). The model used for the study was the U.S. Geological Survey's Precipitation-Runoff Modeling System, a physically based, distributed-parameter model designed to simulate precipitation and snowmelt runoff as well as snowpack accumulation and snowmelt processes. Models were developed for 2 perennial watersheds in Eagle Valley having gaged daily mean runoff, Ash Canyon Creek and Clear Creek, and for 10 ephemeral watersheds in the Dayton Valley and Churchill Valley hydrologic areas. Model calibration was constrained by daily mean runoff for the 2 perennial watersheds and for the 10 ephemeral watersheds by limited indirect runoff estimates and by mean annual runoff estimates derived from empirical methods. The models were further constrained by limited climate data adjusted for altitude differences using annual precipitation volumes estimated in a previous study. The calibration periods were water years 1980-2007 for Ash Canyon Creek, and water years 1991-2007 for Clear Creek. To

  16. Evaluation of LiDAR-acquired bathymetric and topographic data accuracy in various hydrogeomorphic settings in the Deadwood and South Fork Boise Rivers, West-Central Idaho, 2007

    Science.gov (United States)

    Skinner, Kenneth D.

    2011-01-01

    High-quality elevation data in riverine environments are important for fisheries management applications and the accuracy of such data needs to be determined for its proper application. The Experimental Advanced Airborne Research LiDAR (Light Detection and Ranging)-or EAARL-system was used to obtain topographic and bathymetric data along the Deadwood and South Fork Boise Rivers in west-central Idaho. The EAARL data were post-processed into bare earth and bathymetric raster and point datasets. Concurrently with the EAARL surveys, real-time kinematic global positioning system surveys were made in three areas along each of the rivers to assess the accuracy of the EAARL elevation data in different hydrogeomorphic settings. The accuracies of the EAARL-derived raster elevation values, determined in open, flat terrain, to provide an optimal vertical comparison surface, had root mean square errors ranging from 0.134 to 0.347 m. Accuracies in the elevation values for the stream hydrogeomorphic settings had root mean square errors ranging from 0.251 to 0.782 m. The greater root mean square errors for the latter data are the result of complex hydrogeomorphic environments within the streams, such as submerged aquatic macrophytes and air bubble entrainment; and those along the banks, such as boulders, woody debris, and steep slopes. These complex environments reduce the accuracy of EAARL bathymetric and topographic measurements. Steep banks emphasize the horizontal location discrepancies between the EAARL and ground-survey data and may not be good representations of vertical accuracy. The EAARL point to ground-survey comparisons produced results with slightly higher but similar root mean square errors than those for the EAARL raster to ground-survey comparisons, emphasizing the minimized horizontal offset by using interpolated values from the raster dataset at the exact location of the ground-survey point as opposed to an actual EAARL point within a 1-meter distance. The

  17. Sinais neurológicos sutis: uma revisão Neurological soft signs: a review

    Directory of Open Access Journals (Sweden)

    Vinicius Sousa Pietra Pedroso

    2010-01-01

    Full Text Available O objetivo deste trabalho é discutir o significado dos sinais neurológicos sutis e a relevância para a pesquisa em psiquiatria, com ênfase na esquizofrenia e no transtorno bipolar (TB. Realizou-se uma revisão da literatura nas bases de dados Medline e Bireme. Sinais neurológicos sutis são alterações no exame neurológico que compreendem funções diversas como integração sensorial, coordenação motora, sequenciamento motor e presença de reflexos primitivos. Esses sinais indicam disfunção cerebral não focal, podendo se apresentar como fatores de risco para transtornos psiquiátricos. Podem indicar endofenótipos relacionados a disfunções em circuitos neurais específicos, fornecendo informações relevantes para fisiopatologia desses transtornos. Apesar disso, há poucos trabalhos sobre o tema na literatura nacional. A observação de sinais neurológicos sutis aponta para o potencial de o exame neurológico preencher uma lacuna entre a pesquisa neurobiológica e a prática clínica.This work aims to discuss the meaning of neurological soft signs and their relevance for research in psychiatry, with emphasis in schizophrenia and bipolar disorder. A narrative review of the literature was performed based on the databases Medline and Bireme. Neurological soft signs are abnormalities on the neurological exam affecting several functions, such as sensory integration, motor coordination, motor sequencing and presence of primitive reflexes. These signs indicate non-focal brain dysfunction and can be regarded as risk factors for psychiatric disorders. They can also suggest endophenotypes related with specific neural circuits, providing relevant information on the pathofisiology of these disorders. There are only a few studies on this subject in the Brazilian literature. The observation of neurological soft signs points to the potential of the neurological exam to link the neurobiological knowledge and the clinical practice.

  18. Uma Proposta de Sistema para Tradução entre Linguagens de Sinais

    OpenAIRE

    NEIVA, Davi Hirafuji

    2015-01-01

    Na sociedade contemporânea existe uma forte campanha pela acessibilidade e pela inclusão de pessoas com deficiências. No Brasil há em torno de 9 milhões de surdos que usam a Linguagem Brasileira de Sinais (LIBRAS) e enfrentam diversas barreiras de comunicação. Várias iniciativas de aplicativos móveis proveem tradução entre LIBRAS e Português, porém a comunicação entre surdos de diferentes nacionalidades permanece um desafio. Este trabalho tem como objetivo propor um sistema que permita a pess...

  19. The Middle Jurassic microflora from El Maghara N° 4 borehole, Northern Sinai, Egypt

    Science.gov (United States)

    Mohsen, Sayed Abdel

    The coal bearing formation in El Maghara area, northern Sinai, yielded abundant, diverse and generally well preserved spores, pollen and marine microflora. The palynological analysis of the fine clastic sediments in this formation yielded (71) species related to (44) genera. Three different palynological assemblage zones can be distinguished. The sediments which contain lower and the upper assemblage zones bearing the coal seems, were deposited in non-marine (swamp) environment. In the middle assemblage zone few marine microflora can be identified, indicating a coastal near shore marine environment. Compared with other palynologic data obtained from Egypt and other countries, the three described assemblage zones belong to Middle Jurassic (Bathonian) age.

  20. On the decay of correlations in Sinai billiards with infinite horizon

    Science.gov (United States)

    Dahlqvist, Per; Artuso, Roberto

    1996-02-01

    We compute the decay of the autocorrelation function of the observable | vx| in the Sinai billiard and of the observable vx in the associated Lorentz gas with an approximation due to Baladi, Eckmann and Ruelle. We consider the standard configuration where the disk is centered inside a unit square. The asymptotic decay is found to be C( t) ∼ c( R)/ t. An explicit expression is given for the prefactor c( R) as a function of the radius of the scatterer. For the small scatterer case we also present expressions for the preasymptotic regime. Our findings are supported by numerical computations.

  1. Detrended fluctuation analysis and Kolmogorov–Sinai entropy of electroencephalogram signals

    International Nuclear Information System (INIS)

    Lim, Jung Ho; Khang, Eun Joo; Lee, Tae Hyun; Kim, In Hye; Maeng, Seong Eun; Lee, Jae Woo

    2013-01-01

    We measured the electroencephalogram (EEG) of young students in the relaxed state and in the state of the mathematical activities. We applied the detrended fluctuation analysis and Kolmogorov–Sinai entropy (KSE) in the EEG signals. We found that the detrended fluctuation functions follow a power law with Hurst exponents larger than 1/2. The Hurst exponents enhanced at all EEG channels in the state of mathematical activities. The KSE in the relaxed state is larger than those in the state of the mathematical activities. These indicate that the entropy is enhanced in the disorder state of the brain.

  2. Accidental bound states in the continuum in an open Sinai billiard

    Energy Technology Data Exchange (ETDEWEB)

    Pilipchuk, A.S. [Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk (Russian Federation); Siberian Federal University, 660080 Krasnoyarsk (Russian Federation); Sadreev, A.F., E-mail: almas@tnp.krasn.ru [Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk (Russian Federation)

    2017-02-19

    The fundamental mechanism of the bound states in the continuum is the full destructive interference of two resonances when two eigenlevels of the closed system are crossing. There is, however, a wide class of quantum chaotic systems which display only avoided crossings of eigenlevels. As an example of such a system we consider the Sinai billiard coupled with two semi-infinite waveguides. We show that notwithstanding the absence of degeneracy bound states in the continuum occur due to accidental decoupling of the eigenstates of the billiard from the waveguides. - Highlights: • Bound states in the continuum in open chaotic billiards occur to accidental vanishing of coupling of eigenstate of billiard with waveguides.

  3. Understanding Patient Experience Using Internet-based Email Surveys: A Feasibility Study at Mount Sinai Hospital.

    Science.gov (United States)

    Morgan, Matthew; Lau, Davina; Jivraj, Tanaz; Principi, Tania; Dietrich, Sandra; Bell, Chaim M

    2015-01-01

    Email is becoming a widely accepted communication tool in healthcare settings. This study sought to test the feasibility of Internet-based email surveys of patient experience in the ambulatory setting. We conducted a study of email Internet-based surveys sent to patients in selected ambulatory clinics at Mount Sinai Hospital in Toronto, Canada. Our findings suggest that email links to Internet surveys are a feasible, timely and efficient method to solicit patient feedback about their experience. Further research is required to optimally leverage Internet-based email surveys as a tool to better understand the patient experience.

  4. Interfaces naturais e o reconhecimento das línguas de sinais

    Directory of Open Access Journals (Sweden)

    Renato Kimura da Silva

    2017-01-01

    Full Text Available Interface é uma camada intermediária que está entre duas faces. No contexto computacional, podemos dizer que interface existe na intermediação interativa entre dois sujeitos, ou ainda entre sujeito e um programa. Ao longo dos anos, as interfaces têm evoluído constantemente: das linhas de texto monocromáticas aos mouses - com o conceito exploratório da interface gráfica - até as mais recentes interfaces naturais - ubíquas e que objetivam a transparência da interação. Nas novas interfaces, por meio do uso do corpo, o usuário interage com o computador, não sendo necessário aprender a interface. Seu uso é mais intuitivo, com a possibilidade de reconhecimento da voz, da face e dos gestos. O avanço tecnológico vai ao encontro das necessidades básicas do indivíduo, como a comunicação, tornando-se factível conceber novas tecnologias que beneficiam pessoas em diferentes esferas. A contribuição desse trabalho está em entender o cenário técnico que possibilita idealizar e criar interfaces naturais para o reconhecimento automático computacional dos sinais das Línguas de Sinais e considerável parte de sua gramática. Para tanto, essa pesquisa foi primeiramente pautada no estudo do desenvolvimento das interfaces computacionais e da sua estreita relação com os videogames, fundamentando-se nas contribuições de autores como Pierre Lévy, Sherry Turkle, Janet Murray e Louise Poissant. Em momento posterior, aproximamo-nos de autores como William Stokoe, Scott Liddell, Ray Birdwhistell, Lúcia Santaella e Winfried Nõth, a respeito de temas gerais e específicos que abarcam a multidisciplinaridade das Línguas de Sinais, suas gramáticas e aspectos semióticos. Por fim, foi realizado um levantamento do Estado da Arte das Interfaces Naturais voltadas ao Reconhecimento Automático das Línguas de Sinais, além do estudo de pesquisas notáveis relacionadas ao tema, apresentando possíveis caminhos futuros a serem trilhados por

  5. Literatura surda: produções culturais de surdos em Língua de Sinais

    Directory of Open Access Journals (Sweden)

    Cláudio Henrique Nunes Mourão

    2017-02-01

    Full Text Available Com o propósito de investigar a manifestação das produções culturais dos surdos em histórias que são contadas em Libras, o foco da pesquisa é a análise da forma como os surdos vêm apresentando e construindo a Literatura Surda, com foco na Língua de Sinais. A partir disso, os objetivos são desdobrados na análise das temáticas e do uso da Língua de Sinais, ou seja: verificar quais histórias os surdos têm contado, como são caracterizadas essas histórias e quais são os temas apresentados e analisar o uso da Língua de Sinais e os recursos expressivos utilizados. A base teórica foi buscada nos Estudos Culturais e Estudos Surdos, em autores como Hall (1997, Karnopp (2006, 2010, Quadros (2004-}, Klein e Lunardi (2006, Sutton-Spence (2008, Lopes e Thoma (2004, Perlin (2004, Silveira (2006, Strobel  (2008. O material empírico que subsidia a investigação foi obtido através das atividades desenvolvidas por alunos do Curso de Licenciatura em Letras-Libras, ensino a distância, da Universidade Federal de Santa Catarina. Optei pela coleta de materiais produzidos (filmados, disponíveis em DVDs na disciplina de Literatura Surda e, além disso, realizei entrevistas que subsidiam a análise dos textos produzidos em Libras, verificando o depoimento dos alunos sobre as histórias selecionadas, o uso da Língua de Sinais e dos recursos expressivos utilizados. As produções analisadas se dividiram em traduções e adaptações de histórias conhecidas, incluindo personagens surdos, procurando marcar uma produção da cultura surda.

  6. Psammomys obesus Cretzschmar, 1828 and zoonotic cutaneous leishmaniasis in Sinai Peninsula, Egypt.

    Science.gov (United States)

    Morsy, T A; Sabry, A H; Rifaat, M M; Wahba, M M

    1996-08-01

    In the Middle East, the fat sand rat Psammomys obesus is the most important reservoir host of zoonotic cutaneous leishmamiasis (ZCL). It is the most incriminated host in outbreaks. Two P. obesus caught in Wadi El Gedeiret (Al Arish, North Sinai) were found naturally infected with Leishmania major as indicated by enzyme electrophoresis. In Egypt, the already known reservoir hosts are Gerbillus pyramidum I. Geoffroy St. Hilaire, 1825; Meriones crassus Sundevall, 1984 and Meriones sacramenti Thomas, 1922. The hostal role of P. obesus was discussed.

  7. Wadati method as a simple tool to study seismically active fault zones: a case study from the West-Bohemia/Vogtland region, central Europe

    Czech Academy of Sciences Publication Activity Database

    Novotný, O.; Málek, Jiří; Boušková, Alena

    2016-01-01

    Roč. 60, č. 2 (2016), s. 248-267 ISSN 0039-3169 R&D Projects: GA ČR GAP210/12/2336; GA MŠk LM2010008 Institutional support: RVO:67985530 ; RVO:67985891 Keywords : velocity ratio * earthquake swarm * West-Bohemia/Vogtland * Wadati method * tectonic fault Subject RIV: DC - Siesmology, Volcanology, Earth Structure Impact factor: 0.764, year: 2016

  8. Second workshop of participants in the Joint FAO-IOC-WHO-IAEA-UNEP project on monitoring of pollution in the marine environment of the West and Central African Region (WACAF/2 - first phase)

    International Nuclear Information System (INIS)

    1988-01-01

    The Second Workshop of Participants in the Joint FAO-IOC-WHO-IAEA-UNEP Project on Monitoring of Pollution in the Marine Environment of the West and Central African Region (WACAF/2) was attended by 29 participants from 10 countries (Senegal, The Gambia, Sierra Leone, Cote d'Ivoire, Ghana, Benin, Nigeria, Cameroun, Congo and Gabon). Levels of metals, chlorinated hydrocarbons and petroleum components in marine biota were discussed in seven scientific reports which were presented by the participating scientists (Cote d'Ivoire, Sierra Leone, Nigeria, The Gambia, ghana and Cameroun). Three of the presented reports were on organochlorines and four dealt with trace metal levels in marine organisms. The Representative of the International Atomic Energy Agency (IAEA) reviewed the results obtained during the data quality assurance intercalibration exercises carried out in the region during the first phase. The result received are still within acceptable range. However, there seems to be a trend for values to be higher than the range of finally certified concentrations. Considering that most results were clearly better in the second exercise, after equipment service, part of the earlier deviation might be attributed to instrument malfunctions. These results can be regarded as fairly encouraging for the future development in the West and Central African marine pollution monitoring programme. Refs, tabs

  9. The Mount Sinai international enhancement of social work leadership program: The past and the future.

    Science.gov (United States)

    Gordon, Elisa; Green, Karen; Whitwam, Louisa; Epstein, Irwin; Bernstein, Susan

    2018-07-01

    Developed in 1988, the Mount Sinai International Enhancement of Social Work Leadership Program brings 4-6 social workers from several countries each year to the Mount Sinai Hospital in New York City, where they meet with leaders from the hospital, community based organizations and graduate schools of social work, to enhance their leadership ability, strengthen management and research skills, and build upon global social work relationships. This article reviews the results of a survey conducted in 2016 to assess whether the visiting scholars met established learning objectives of the Program. Survey outcomes, presented in quantitative and qualitative terms, show positive results, and the scholars reported that the Program was extremely beneficial. The Program is viewed through the lens of two select adult learning theories: Social Learning Theory, which incorporates collaboration and learning from others, and Transformative Learning Theory, which is comprised of self-reflection and individualized learning. The inclusion of these theories in the implementation of the Program will be discussed. An analysis of the survey's outcomes, through pre- and post-Program participation and learning, facilitates assessment of potential programmatic adjustments to help evaluate long-term viability of the Program and potential duplication by other academic medical centers.

  10. Intraplate Crustal Deformation Within the Northern Sinai Microplate: Evidence from Paleomagnetic Directions and Mechanical Modeling

    Science.gov (United States)

    Dembo, N.; Granot, R.; Hamiel, Y.

    2017-12-01

    The intraplate crustal deformation found in the northern part of the Sinai Microplate, located near the northern Dead Sea Fault plate boundary, is examined. Previous studies have suggested that distributed deformation in Lebanon is accommodated by regional uniform counterclockwise rigid block rotations. However, remanent magnetization directions observed near the Lebanese restraining bend are not entirely homogeneous suggesting that an unexplained and complex internal deformation pattern exists. In order to explain the variations in the amount of vertical-axis rotations we construct a mechanical model of the major active faults in the region that simulates the rotational deformation induced by motion along these faults. The rotational pattern calculated by the mechanical modeling predicts heterogeneous distribution of rotations around the faults. The combined rotation field that considers both the fault induced rotations and the already suggested regional block rotations stands in general agreement with the observed magnetization directions. Overall, the modeling results provide a more detailed and complete picture of the deformation pattern in this region and show that rotations induced by motion along the Dead Sea Fault act in parallel to rigid block rotations. Finally, the new modeling results unravel important insights as to the fashion in which crustal deformation is distributed within the northern part of the Sinai Microplate and propose an improved deformational mechanism that might be appropriate for other plate margins as well.

  11. Studies on geology and radioactivity of a phosphorite occurrence in Taba, Eastern Sinai, Egypt. Vol. 3.

    Energy Technology Data Exchange (ETDEWEB)

    El-Aassy, I E [Nuclear Materials Authority, Cairo, (Egypt)

    1996-03-01

    A phosphorite occurrence belonging to the Sudr Formation of Campanian-Maestrichtian has been located in Taba area, Eastern Sinai, Egypt. The sedimentary succession covering the area ranges from the Lower Cretaceous Malha Formation up to the Lower Eocene Thebes Formation. The phosphorites are occurring near the top of Sudr Formation. The latter is mainly manifested in the form of a carbonate facies of chalky limestone with thin chert and limestone intercalations. Two phosphate beds have been identified, namely, a lower bed of about 0.3 m thick and an upper bed of about 1.7 m thick. The two phosphate beds have been regularly sampled, and the collected samples were subjected to both XRD and chemical analysis for P{sub 2} O{sub 5} and uranium contents. The former indicated that the carbonate fluorapatite is the main phosphate mineral. The P{sub 2} O{sub 5} and uranium contents were found to attain maximum values of 22.4% and 97 Ppm, respectively. Taba phosphorite occurrence is correlated with that of El Qaa plain, southwestern sinai. The two phosphate beds have been compared to those occurring in three main phosphate districts of Egypt, namely, the red sea, the nile valley and the western desert which, belong, however to the Duwi formation. 6 figs., 3 tabs.

  12. Holocene evolution of Dahab coastline - Gulf of Aqaba, Sinai Peninsula, Egypt

    Science.gov (United States)

    Torab, Magdy

    2018-03-01

    Dahab is a little Bedouin-village in Sinai Peninsula on the east coast of the Gulf of Aqaba and it lies approximately 90 km north of Sharm-el-Sheikh City. Dahab means "gold" in the Arabic language; over the past 20 years it has become one of the most visited tourist sites in Egypt. The basement complex is composed mostly of biotite aplite-granite, mica-aplite granite, granodiorite, quartz diorite, alaskite, and diorite. This composition correlates to similar igneous rocks in the most southern areas of Sinai and the Red Sea. Wadi Dahab is composed of igneous and metamorphic rocks and the coastline is formed of fragments of its rocks mixed with fragments of coral reef. The morphology of Dahab's coastline is characterized by a hooked marine spit composed of fluvial sediments carried by marine currents from the mouth of Wadi Dahab. This spit encloses a shallow lagoon, but the active deposition on the lagoon bottom will turn it into saline marsh. This paper investigates the evolution of the Dahab spit and lagoon during the Holocene and over the last 100 years, as well as the potential impacts of future management of the coastal area. The coastline mapping during the study was dependent on GIS techniques and data were collected by using total station, aerial photographs and satellite image interpretation as well as soil sample dating.

  13. Prevalence of Visual Impairment and Refractive Errors in Children of South Sinai, Egypt.

    Science.gov (United States)

    Yamamah, Gamal Abdel Naser; Talaat Abdel Alim, Ahmed Ahmed; Mostafa, Yehia Salah El Din; Ahmed, Rania Ahmed Abdel Salam; Mohammed, Asmaa Mahmoud; Mahmoud, Asmaa Mohammed

    2015-01-01

    To assess the prevalence and causes of visual impairment in children of South Sinai, and to evaluate outcomes of rehabilitation programs. Population-based, cross-sectional analysis of 2070 healthy school children screened for visual impairment from 2009 through 2010 in cities of South Sinai and their surrounding Bedouin settlements. Visual acuity (VA) was tested using Snellen charts followed by cycloplegic autorefractometry for cases with presenting VA ≤ 6/9. Appropriate eyeglasses were prescribed and VA re-evaluated. This study included 1047 boys and 1023 girls, mean age 10.7 ± 3.1 years. Visual impairment (uncorrected VA ≤ 6/9) was detected in 29.4% of children, while 2.0% had moderate-severe visual impairment (uncorrected VA ≤ 6/24). There were statistically significant differences in prevalence of visual impairment between the studied cities (p visual impairment was significantly higher among girls (p children showed significantly lower prevalences of visual impairment. Only age was a reliable predictor of visual impairment (odds ratio 0.94, p children who received spectacles (p children had some form of visual impairment, 90.32% of which comprised refractive errors (mainly astigmatism) which were significantly corrected with eyeglasses. VA screening and correction of refractive errors are of the utmost importance for ensuring better visual outcomes and improved school performance.

  14. The value of Web-based library services at Cedars-Sinai Health System.

    Science.gov (United States)

    Halub, L P

    1999-07-01

    Cedars-Sinai Medical Library/Information Center has maintained Web-based services since 1995 on the Cedars-Sinai Health System network. In that time, the librarians have found the provision of Web-based services to be a very worthwhile endeavor. Library users value the services that they access from their desktops because the services save time. They also appreciate being able to access services at their convenience, without restriction by the library's hours of operation. The library values its Web site because it brings increased visibility within the health system, and it enables library staff to expand services when budget restrictions have forced reduced hours of operation. In creating and maintaining the information center Web site, the librarians have learned the following lessons: consider the design carefully; offer what services you can, but weigh the advantages of providing the services against the time required to maintain them; make the content as accessible as possible; promote your Web site; and make friends in other departments, especially information services.

  15. From Mount Sinai to Mount Scopus: differences in the role and value of fine needle aspiration for evaluating thyroid nodules.

    Science.gov (United States)

    Mazeh, Haggi; Greenstein, Alexander; Swedish, Kristin; Arora, Shalini; Hermon, Hila; Ariel, Ilana; Divino, Celia; Freund, Herbert R; Weber, Kaare

    2009-05-01

    Fine needle aspiration is the main diagnostic tool used to assess thyroid nodules. To correlate FNA cytology results with surgical pathological findings in two teaching medical centers across the Atlantic. We retrospectively identified 484 patients at Hadassah Hebrew University Medical Center, Jerusalem and Mount Sinai Hospital, New York, by means of both preoperative FNA cytology and a final histopathological report. Results compared FNA diagnosis, histological findings and frozen section results (Mt. Sinai only). The sensitivity value of FNA at Hadassah was 83.0% compared with 79.1% at Mt. Sinai (NS). Specificity values were 86.6 vs. 98.5% (P < 0.05), negative predictive value 78.7 vs. 77.6% (NS) and positive predictive value 89.7 vs. 98.6% (P < 0.05), respectively. "Follicular lesion" was diagnosed on FNA in 33.1% of the patients at Hadassah and in 21.5% at Mt Sinai (P < 0.005) with a malignancy rate of 42.5 vs. 23.1% (P < 0.05), respectively. Frozen section was used in 190 patients at Mt. Sinai (78.5%) with sensitivity and specificity values of 72.3% and 100%. Frozen section results altered the planned operative course in only 6 patients (2.5%). Follicular carcinoma was diagnosed in 12 patients at Hadassah vs. 2 patients at Mt. Sinai (P < 0.05). The sensitivity of FNA at the two institutions was comparable. While malignancy on frozen section is highly specific, it should be used selectively for suspicious FNA results. Follicular lesions and the rate of malignancy in such lesions were more common at Hadassah, favoring a more aggressive surgical approach.

  16. Metformin, an Anthropogenic Contaminant of Seidlitzia rosmarinus Collected in a Desert Region near the Gulf of Aqaba, Sinai Peninsula

    DEFF Research Database (Denmark)

    Hassan, Ahmed R; El-Kousy, Salah M; El-Toumy, Sayed A

    2017-01-01

    A phytochemical investigation of Seidlitzia rosmarinus collected along the shoreline of the Gulf of Aqaba in the remote southern desert region of the Sinai peninsula has revealed the presence of the registered drug metformin (4). However, analysis of the (14)C content revealed the drug to be an a......A phytochemical investigation of Seidlitzia rosmarinus collected along the shoreline of the Gulf of Aqaba in the remote southern desert region of the Sinai peninsula has revealed the presence of the registered drug metformin (4). However, analysis of the (14)C content revealed the drug...

  17. West Africa

    International Development Research Centre (IDRC) Digital Library (Canada)

    freelance

    considered by many as a successful model of river basin organization. NBA, after years of ... a Regional Water Protocol for West Africa, following the model of the SADC ...... protection of water against pollution of all kinds (urban, industrial,.

  18. Geothermal investigations in West Virginia

    Energy Technology Data Exchange (ETDEWEB)

    Hendry, R.; Hilfiker, K.; Hodge, D.; Morgan, P.; Swanberg, C.; Shannon, S.S. Jr.

    1982-11-01

    Deep sedimentary basins and warm-spring systems in West Virginia are potential geothermal resources. A temperature gradient map based on 800 bottom-hole temperatures for West Virginia shows that variations of temperature gradient trend northeasterly, parallel to regional structure. Highest temperature gradient values of about 28/sup 0/C/km occur in east-central West Virginia, and the lowest gradients (18/sup 0/C/km) are found over the Rome Trough. Results from ground-water geochemistry indicate that the warm waters circulate in very shallow aquifers and are subject to seasonal temperature fluctuations. Silica heat-flow data in West Virginia vary from about 0.89 to 1.4 HFU and generally increase towards the west. Bouguer, magnetic, and temperature gradient profiles suggest that an ancient rift transects the state and is the site of several deep sedimentary basins.

  19. Língua brasileira de sinais e implante coclear: relato de um caso

    Directory of Open Access Journals (Sweden)

    Myriam de Lima Isaac

    2012-03-01

    Full Text Available A perda auditiva é uma das privações sensoriais mais comum nos homens. A principal consequência da perda auditiva reside em sua repercussão no desenvolvimento da linguagem oral e, consequentemente, interferindo em todo o processo de aprendizagem da leitura e escrita. O implante coclear é um dispositivo eletrônico, parcialmente implantado, que visa a proporcionar aos seus usuários sensação auditiva próxima ao fisiológico. É uma boa opção aos portadores de surdez sensorioneural profunda, entretanto, não assegura o desenvolvimento das habilidades auditivas e de linguagem oral. Assim, por não desenvolverem a linguagem oral, os indivíduos com implante coclear não podem ser privados da possibilidade da aquisição e do desenvolvimento da linguagem, pois podem fazer isso utilizando outra forma de comunicação – a língua de sinais. O objetivo deste relato é descrever a experiência do atendimento multidisciplinar de uma criança usuária de implante coclear. B.V.S.R. oito anos, gênero masculino, portador de perda auditiva sensorioneural profunda, bilateral desde o período neonatal. Realizou cirurgia de implante coclear aos três anos de idade, sendo acompanhado segundo abordagem aurioral. Devido ao baixo desempenho escolar apresentado, foi discutido com a equipe multidisciplinar e decidido modificar a abordagem, optando-se por iniciar aprendizagem de língua brasileira de sinais.  Após um período de dois anos, segundo a nova abordagem, a criança apresentou considerável evolução em todos os aspectos do desenvolvimento. A mudança de abordagem influenciou positivamente na evolução da criança, pois a mesma alcançou adequado desempenho em diversas habilidades linguísticas.Palavras-chave: Surdez. Implante coclear. Língua brasileira de sinais.

  20. Metformin, an Anthropogenic Contaminant of Seidlitzia rosmarinus Collected in a Desert Region near the Gulf of Aqaba, Sinai Peninsula

    DEFF Research Database (Denmark)

    Hassan, Ahmed R.; El-Kousy, Salah M.; El-Toumy, Sayed A.

    2017-01-01

    A phytochemical investigation of Seidlitzia rosmarinus collected along the shoreline of the Gulf of Aqaba in the remote southern desert region of the Sinai peninsula has revealed the presence of the registered drug metformin (4). However, analysis of the (14)C content revealed the drug to be an a...

  1. Rowing the Weaves of Community Participation: Good Practices in Early Childhood Development (ECD) Program in Rural Central Lombok, West Nusa Tenggara

    Science.gov (United States)

    Abdillah, Ali

    2014-01-01

    This paper describes the rural community participation within the context of an integrated early childhood development program initiated by the government of Indonesia in partnership with UNICEF and AusAID in Central Lombok (2008-2010). Based on purposive interviews with relevant stakeholders, as well as an analysis of past documents, researchers'…

  2. Natural Radioactivities due to Coal Mining in Gabal El-Maghara, North Sinai, Egypt

    International Nuclear Information System (INIS)

    Seddeek, M.K.; Ragab, H.S.; Sharshar, T.; Badran, H.M.

    2005-01-01

    Natural radioactivity concentrations due to the coal mining in Gabal El-Maghara, North Sinai, Egypt, were determined using gamma-ray spectroscopy. Coal, water and soil samples were investigated in this study. The 226 R a, 232 T h and 40 K activity concentrations for coal before extraction were 18.5±0.5, 29.5±1.2 and 149.0±8.4 Bq/kg, respectively. These concentrations were reduced to 18-22% after extraction due to the clay subtraction from the ore. The activity contents of the water and soil samples collected from the surrounding area did not show any evidence of enhancement due to the mining activities. Absorbed dose rate and effective dose equivalent in the mine environment were 29.4±1.0 n Gy/h and 139.2±4.7 mSv/y, respectively

  3. Uranium traps in the phosphate bearing sudr chalk, in northeastern sinai, Egypt

    International Nuclear Information System (INIS)

    Hussein, H.A.; El-Aassy, I.E.; Mahdy, M.A.; Dabbour, G.A.; Mansour, M.Gh.; Morsy, A.M.

    1998-01-01

    The maastrichtian sudr formation in northeastern sinai is composed of three members, the lower chalk, the middle phosphate and chart-bearing and the upper chalk members. Lemon yellow secondary uranium mineralization, distributed in the lower chalk member and in some phosphate beds from the middle phosphate member are observed. The XRD analyses of some samples from the uranium bearing chalk and the phosphate beds showed the presence of the secondary uranium minerals carnotite, bergenite and upalite. The mode of uranium occurrences could be interpreted as a result of the phosphatic beds decomposition and their subjection to later diagenetic processes. Uranium leaching circulation from phosphate rocks led to the liberation of uranium from the phosphates, and vanadium from the bituminous material and clay minerals. These migrated and were deposited locally and within the underlying chalk beds which acted as a lithologic trap

  4. Error of semiclassical eigenvalues in the semiclassical limit - an asymptotic analysis of the Sinai billiard

    Science.gov (United States)

    Dahlqvist, Per

    1999-10-01

    We estimate the error in the semiclassical trace formula for the Sinai billiard under the assumption that the largest source of error is due to penumbra diffraction: namely, diffraction effects for trajectories passing within a distance Ricons/Journals/Common/cdot" ALT="cdot" ALIGN="TOP"/>O((kR)-2/3) to the disc and trajectories being scattered in very forward directions. Here k is the momentum and R the radius of the scatterer. The semiclassical error is estimated by perturbing the Berry-Keating formula. The analysis necessitates an asymptotic analysis of very long periodic orbits. This is obtained within an approximation originally due to Baladi, Eckmann and Ruelle. We find that the average error, for sufficiently large values of kR, will exceed the mean level spacing.

  5. lower and Middle Miocene Foraminiferal Paleoecology of Southwest Sinai Area, Egypt

    International Nuclear Information System (INIS)

    El Ashwah, A.A.E.; Mandur, M.M.; Obeid, F.L.

    2005-01-01

    The planktonic and benthonic foraminifera content of the lower and middle miocene successions exposed at southwest Sinai in Egypt have been studied. One hundred and thirty three foraminifera species were identified (30 planktonic species and 103 benthonic species). This study aims to contribute in the understanding of the paleoecology, paleobathymetry and tectonic history of these sedimentary sequences. These sediments are subdivided into four rock units, from base to top, as follow: Nukhul, Rudeis, Kareem and Balayim formations. According to the foraminifera content the studied successions are subdivided into five eco zones. The environment of each ec ozone is deduced. These environments point to outer neritic for the Nukhul formation, middle to inner neritic for the Rudeis formation, inner to littoral neritic for the Kareem formation and littoral neritic for the Belayim formation. A proposed paleobathymetric curve is presented. The interpretation of this curve helped to deduce the tectonic history of the lower and Middle Miocene sediments in the studied area

  6. Análise de sinais cerebrais utilizando árvores de decisão

    OpenAIRE

    Silveira, Josimara de Ávila

    2013-01-01

    Este trabalho propõe um estudo de sinais cerebrais aplicados em sistemas BCI (Brain-Computer Interface - Interfaces Cérebro Computador), através do uso de Árvores de Decisão e da análise dessas árvores com base nas Neurociências. Para realizar o tratamento dos dados são necessárias 5 fases: aquisição de dados, pré-processamento, extração de características, classificação e validação. Neste trabalho, todas as fases são contempladas. Contudo, enfatiza-se as fases de classificação...

  7. Sinais precoces de escoliose em crianças pré-escolares

    OpenAIRE

    Vieira, Débora Beckner de Almeida Leitão Prado; Beresoski, Camila Mayumi; Camargo, Mariana Zingari; Fernandes, Karen Barros Parron; Siqueira, Claudia Patrícia Cardoso Martins; Fujisawa, Dirce Shizuko

    2015-01-01

    A alta incidência de desvios posturais na população infantil, estimada em 20%, além de preocupante, é um problema de saúde pública. O presente estudo teve como objetivo identificar sinais de escoliose em crianças na idade pré-escolar da rede de ensino municipal de Londrina (PR). Participaram do estudo 377 crianças, entre 5 e 6 anos de idade, de ambos os sexos. O exame postural foi dividido em: (1) obtenção dos dados antropométricos, equilíbrio pélvico frontal e teste de Adams; (2) em caso de ...

  8. Groundwater recharge studies using isotope-chemical techniques in wadi gharandal, sinai peninsula(E G))

    International Nuclear Information System (INIS)

    Awad, M.A.A.; Salem, W.M.; Ezzeldin

    1999-01-01

    Wadi Gharandal lies on southwestern part of sinai peninsula with its outlets into the Gulf of suez. Eight groundwater samples were collected from quaternary aquifer in wadi gharandal to identify the sources of replenishment and evaluation of its water quality. The variation in chemical composition of water samples is due to water-rock interaction and the effect of sea spray. The distribution of chemical species in the examined groundwater samples is controlled by geography and climate conditions prevailing in the area of study. The salinity increase towards the gulf of suez. The isotopic data indicate that precipitation and floods are considered to be the main sources of recharge in this area. The investigated groundwater samples are found to be suitable for irrigation purposes based on sodium adsorption ratio (SAR) and unsuitable for domestic usages due to high salinity and hardness values

  9. Diversity of bacteria nesting the plant cover of north Sinai deserts, Egypt

    Directory of Open Access Journals (Sweden)

    Amira L. Hanna

    2013-01-01

    Full Text Available North Sinai deserts were surveyed for the predominant plant cover and for the culturable bacteria nesting their roots and shoots. Among 43 plant species reported, 13 are perennial (e.g. Fagonia spp., Pancratium spp. and 30 annuals (e.g. Bromus spp., Erodium spp.. Eleven species possessed rhizo-sheath, e.g. Cyperus capitatus, Panicum turgidum and Trisetaria koelerioides. Microbiological analyses demonstrated: the great diversity and richness of associated culturable bacteria, in particular nitrogen-fixing bacteria (diazotrophs; the majority of bacterial residents were of true and/or putative diazotrophic nature; the bacterial populations followed an increasing density gradient towards the root surfaces; sizeable populations were able to reside inside the root (endorhizosphere and shoot (endophyllosphere tissues. Three hundred bacterial isolates were secured from studied spheres. The majority of nitrogen-fixing bacilli isolates belonged to Bacillus megaterium, Bacillus pumilus, Bacillus polymexa, Bacillus macerans, Bacillus circulans and Bacillus licheniformis. The family Enterobacteriaceae represented by Enterobacter agglomerans, Enterobacter sackazakii, Enterobacter cloacae, Serratia adorifera, Serratia liquefaciens and Klebsiella oxytoca. The non-Enterobacteriaceae population was rich in Pantoae spp., Agrobacterium rdiobacter, Pseudomonas vesicularis, Pseudomonas putida, Stenotrophomonas maltophilia, Ochrobactrum anthropi, Sphingomonas paucimobilis and Chrysemonas luteola. Gluconacetobacter diazotrophicus were reported inside root and shoot tissues of a number of tested plants. The dense bacterial populations reported speak well to the very possible significant role played by the endophytic bacterial populations in the survival, in respect of nutrition and health, of existing plants. Such groups of diazotrophs are good candidates, as bio-preparates, to support the growth of future field crops grown in deserts of north Sinai and irrigated by the

  10. Sedimentary response to orogenic exhumation in the northern rocky mountain basin and range province, flint creek basin, west-central Montana

    Science.gov (United States)

    Portner, R.A.; Hendrix, M.S.; Stalker, J.C.; Miggins, D.P.; Sheriff, S.D.

    2011-01-01

    Middle Eocene through Upper Miocene sedimentary and volcanic rocks of the Flint Creek basin in western Montana accumulated during a period of significant paleoclimatic change and extension across the northern Rocky Mountain Basin and Range province. Gravity modelling, borehole data, and geologic mapping from the Flint Creek basin indicate that subsidence was focused along an extensionally reactivated Sevier thrust fault, which accommodated up to 800 m of basin fill while relaying stress between the dextral transtensional Lewis and Clark lineament to the north and the Anaconda core complex to the south. Northwesterly paleocurrent indicators, foliated metamorphic lithics, 64 Ma (40Ar/39Ar) muscovite grains, and 76 Ma (U-Pb) zircons in a ca. 27 Ma arkosic sandstone are consistent with Oligocene exhumation and erosion of the Anaconda core complex. The core complex and volcanic and magmatic rocks in its hangingwall created an important drainage divide during the Paleogene shedding detritus to the NNW and ESE. Following a major period of Early Miocene tectonism and erosion, regional drainage networks were reorganized such that paleoflow in the Flint Creek basin flowed east into an internally drained saline lake system. Renewed tectonism during Middle to Late Miocene time reestablished a west-directed drainage that is recorded by fluvial strata within a Late Miocene paleovalley. These tectonic reorganizations and associated drainage divide explain observed discrepancies in provenance studies across the province. Regional correlation of unconformities and lithofacies mapping in the Flint Creek basin suggest that localized tectonism and relative base level fluctuations controlled lithostratigraphic architecture.

  11. Epidemics of the central nervous system infections caused by West Nile virus in the territory of the South Bačka District, Vojvodina, Serbia

    Directory of Open Access Journals (Sweden)

    Sević Siniša

    2015-01-01

    Full Text Available Background/Aim. West Nile virus (WNV is a neurotropic RNA virus particle which belongs to the Flaviviridae family, genus Flavivirus. It is sustained in arthropods within the transmission cycle between the mosquitoes and birds. Most commonly (80% of cases WNV infections are asymptomatic among people. Less than 1% of patients develop neuroinvasive forms of the disease - meningitis, encephalitis, or acute flaccid paralysis. The aim of the research is to determine most common clinical and laboratory manifestations, to emphazise the presence of comorbidities and outcomes of treatment among patients with WNV infection. Methods. This retrospective study, which was conducted in the period from January 1, 2012 to December 31, 2013, evaluated 32 patients who were diagnosed with WNV infection based on clinical findings, laboratory, and serological tests. To assess statistical significance we used χ2, and t-test. Results. The study involved 22 (69% males and 10 (31% females aged from 31 to 65 years. On admission, there were 16 (50% febrile individuals, 27 (84.4% with positive meningeal signs, 17 (53.2% with pathological neurological signs, and 10 (31.3% with consciousness disorders. WNV infection was confirmed by the method enzyme linked immuno sorbent assay (ELISA in all the patients, while Reverse Transcription Polymerase Chain Reaction (RT-PCR test was positive in 3 (30% of the tested patients. Cardiovascular comorbidities dominated in 7 (21.9% of the cases. Full recovery was accomplished in 87.5 % of the cases. Conclusion. The results of our study show that the absence of meningeal signs and fever on the day 7 of hospital treatment are indicators of good course and prognosis of neuroinvasive forms of WNV infection. Comorbidities do not increase the risk of disease. ELISA test is a sovereign diagnostic method. In most cases, after the administered symptomatic therapy, the complete recovery of patients was achieved. [Projekat Ministarstva nauke Republike

  12. Sinalizando com os Terena: um estudo do uso da LIBRAS e de sinais nativos por indígenas surdos

    Directory of Open Access Journals (Sweden)

    Priscilla Alyne Sumaio

    2016-04-01

    Full Text Available O povo terena habita os estados de Mato-Grosso do Sul e São Paulo. Essa etnia conta com 28.845 pessoas (dados do IBGE, 2010, que estão divididas em 17 terras. Constataram-se terena surdos primeiramente na Comunidade Indígena de Cachoeirinha, de 9.507 habitantes e, em segunda viagem a campo, também em aldeias vizinhas, próximas ao município de Miranda-MS. A língua oral terena é amplamente falada, e também foi observado o uso de sinais pelos surdos terena, o que deu origem a esta pesquisa. O projeto envolveu o estudo da(s língua(s utilizadas por surdos terena de diferentes faixas etárias, sendo a maioria jovens. É notável que parte dessas pessoas não conheça a língua brasileira de sinais (LIBRAS. Alguns nunca frequentaram a escola ou tiveram contato com surdos usuários de LIBRAS. De maneira geral, os familiares dos surdos são ouvintes e falantes de português e terena, e os mais próximos conhecem os sinais terena. Alguns jovens estudam na cidade e estão avançando no uso e conhecimento da LIBRAS, porém estes mesmos jovens utilizam outros sinais na aldeia, com seus familiares ouvintes, amigos e outros surdos, que não sabem LIBRAS. Em última viagem a campo, em 2012, foram coletados sinais terena por meio de fotografia e vídeo, que foram analisados. Avaliou-se então a estrutura, a morfologia no uso desses sinais, e se chegam realmente a constituir uma língua. Entretanto, nesse momento, os aspectos linguísticos não puderam ser mais aprofundados, pois ainda está coletada uma quantidade reduzida de dados, que deverá ser aumentada para a pesquisa do doutorado. Observei também a cultura, educação, cosmovisão terena e surda, as relações dos surdos com seus familiares, professores, intérpretes, amigos e sociedade ouvinte. 

  13. Aerosol optical properties relevant to regional remote sensing of CCN activity and links to their organic mass fraction: airborne observations over Central Mexico and the US West Coast during MILAGRO/INTEX-B

    Science.gov (United States)

    Shinozuka, Y.; Clarke, A. D.; Decarlo, P. F.; Jimenez, J. L.; Dunlea, E. J.; Roberts, G. C.; Tomlinson, J. M.; Collins, D. R.; Howell, S. G.; Kapustin, V. N.; McNaughton, C. S.; Zhou, J.

    2009-09-01

    Remote sensing of cloud condensation nuclei (CCN) would help evaluate the indirect effects of tropospheric aerosols on clouds and climate. To assess its feasibility, we examined relationships of submicron aerosol composition to CCN activity and optical properties observed during the MILAGRO/INTEX-B aircraft campaigns. An indicator of CCN activity, κ, was calculated from hygroscopicity measured under saturation. κ for dry 100 nm particles decreased with increasing organic fraction of non-refractory mass of submicron particles (OMF) as 0.34-0.20×OMF over Central Mexico and 0.47-0.43×OMF over the US West Coast. These fits represent the critical dry diameter, centered near 100 nm for 0.2% supersaturation but varied as κ(-1/3), within measurement uncertainty (~20%). The decreasing trends of CCN activity with the organic content, evident also in our direct CCN counts, were consistent with previous ground and laboratory observations of highly organic particles. The wider range of OMF, 0-0.8, for our research areas means that aerosol composition will be more critical for estimation of CCN concentration than at the fixed sites previously studied. Furthermore, the wavelength dependence of extinction was anti-correlated with OMF as -0.70×OMF+2.0 for Central Mexico's urban and industrial pollution air masses, for unclear reasons. The Angstrom exponent of absorption increased with OMF, more rapidly under higher single scattering albedo, as expected for the interplay between soot and colored weak absorbers (some organic species and dust). Because remote sensing products currently use the wavelength dependence of extinction albeit in the column integral form and may potentially include that of absorption, these regional spectral dependencies are expected to facilitate retrievals of aerosol bulk chemical composition and CCN activity over Central Mexico.

  14. Zircon U-Pb age of the Pescadero felsite: A late Cretaceous igneous event in the forearc, west-central California Coast Ranges

    Science.gov (United States)

    Ernst, W.G.; Martens, U.C.; McLaughlin, R.J.; Clark, J.C.; Moore, Diane E.

    2011-01-01

    Weathered felsite is associated with the late Campanian-Maastrichtian Pigeon Point Formation near Pescadero, California. Poorly exposed, its age and correlation are uncertain. Is it part of the Pigeon Point section west of the San Gregorio-Hosgri fault? Does it rest on Nacimiento block basement? Is it dextrally offset from the Oligocene Cambria Felsite, ~185 km to the southeast? Why is a calc-alkaline hypabyssal igneous rock intrusive into the outboard accretionary prism? To address these questions, we analyzed 43 oscillatory-zoned zircon crystals from three incipiently recrystallized pumpellyite ?? prehnite ?? laumontite-bearing Pescadero felsite samples by sensitive high-resolution ion microprobe-reverse geometry (SHRIMPRG) and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) techniques. Thirty-three zircons gave late Mesozoic U-Pb ages, with single-grain values ranging from 81 to 167 Ma; ten have pre-Mesozoic, chiefl y Proterozoic ages. A group of the four youngest Pescadero zircons yielded an apparent maximum igneous age of ca. 86-90 Ma. Refl ecting broad age scatter and presence of partly digested sandstone inclusions, we interpret the rest of the zircons (perhaps all) as xenocrysts. Twenty-three zircons were separated and analyzed from two samples of the similar Cambria Felsite, yielding a unimodal 27 Ma U-Pb age. Clearly, the origin of the Upper Oligocene Cambria Felsite is different from that of the Upper Cretaceous Pescadero felsite; these rocks are not correlated, and do not constrain displacement along the San Gregorio-Hosgri fault. Peak ages differ slightly, but relative probability curves for Mesozoic and pre-Mesozoic Pescadero zircons compare well, for example, with abundant U-Pb age data for detrital zircons from Franciscan metaclastic strata ~100 km to the east in the Diablo Range- San Francisco Bay area, San Joaquin Great Valley Group turbidites, Upper Cretaceous Nacimiento block Franciscan strata, and Upper Cretaceous

  15. Instrumentos em Lingua Brasileira de Sinais para avaliacao da qualidade de vida da populacao surda

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    Neuma Chaveiro

    2013-06-01

    Full Text Available OBJETIVO: Construir a versão em Língua Brasileira de Sinais dos instrumentos WHOQOL-BREF e WHOQOL-DIS para avaliar a qualidade de vida da população surda brasileira. MÉTODOS: Utilizou-se metodologia proposta pela Organização Mundial da Saúde (WHOQOL-BREF e WHOQOL-DIS para a construção dos instrumentos adaptados para população surda em Língua Brasileira de Sinais (Libras. A pesquisa para execução do instrumento consistiu de 13 etapas: 1 criação do sinal qualidade de vida; 2 desenvolvimento das escalas de respostas em Libras; 3 tradução por um grupo bilíngue; 4 versão reconciliadora; 5 primeira retrotradução; 6 produção da versão em Libras a ser disponibilizada aos grupos focais; 7 realização dos grupos focais; 8 revisão por um grupo monolíngue; 9 revisão pelo grupo bilíngue; 10 análise sintática/semântica e segunda retrotradução; 11 reavaliação da retrotradução pelo grupo bilíngue; 12 filmagem da versão para o software; 13 desenvolvimento do software WHOQOL-BREF e WHOQOL-DIS em Libras. RESULTADOS: Características peculiares da cultura da população surda apontaram a necessidade de adaptações na metodologia de aplicação de grupos focais quando compostos por pessoas surdas. As convenções ortográficas da escrita das línguas sinalizadas não estão consolidadas, o que trouxe dificuldades em registrar graficamente as etapas de tradução. As estruturas linguísticas que causaram maiores problemas de tradução foram as que incluíram expressões idiomáticas do português, muitas sem conceitos equivalentes entre o português e a Libras. Foi possível construir um software do WHOQOL-BREF e WHOQOL-DIS em Libras. CONCLUSÕES: O WHOQOL-BREF e o WHOQOL-DIS em Libras possibilitarão que os surdos se expressem autonomamente quanto a sua qualidade de vida, o que permitirá investigar com maior precisão essas questões.

  16. Feature Extraction in the North Sinai Desert Using Spaceborne Synthetic Aperture Radar: Potential Archaeological Applications

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    Christopher Stewart

    2016-10-01

    Full Text Available Techniques were implemented to extract anthropogenic features in the desert region of North Sinai using data from the first- and second-generation Phased Array type L-band Synthetic Aperture Radar (PALSAR-1 and 2. To obtain a synoptic view over the study area, a mosaic of average, multitemporal (De Grandi filtered PALSAR-1 σ° backscatter of North Sinai was produced. Two subset regions were selected for further analysis. The first included an area of abundant linear features of high relative backscatter in a strategic, but sparsely developed area between the Wadi Tumilat and Gebel Maghara. The second included an area of low backscatter anomaly features in a coastal sabkha around the archaeological sites of Tell el-Farama, Tell el-Mahzan, and Tell el-Kanais. Over the subset region between the Wadi Tumilat and Gebel Maghara, algorithms were developed to extract linear features and convert them to vector format to facilitate interpretation. The algorithms were based on mathematical morphology, but to distinguish apparent man-made features from sand dune ridges, several techniques were applied. The first technique took as input the average σ° backscatter and used a Digital Elevation Model (DEM derived Local Incidence Angle (LAI mask to exclude sand dune ridges. The second technique, which proved more effective, used the average interferometric coherence as input. Extracted features were compared with other available information layers and in some cases revealed partially buried roads. Over the coastal subset region a time series of PALSAR-2 spotlight data were processed. The coefficient of variation (CoV of De Grandi filtered imagery clearly revealed anomaly features of low CoV. These were compared with the results of an archaeological field walking survey carried out previously. The features generally correspond with isolated areas identified in the field survey as having a higher density of archaeological finds, and interpreted as possible

  17. Testing the sensitivity of pumpage to increases in surficial aquifer system heads in the Cypress Creek well-field area, West-Central Florida : an optimization technique

    Science.gov (United States)

    Yobbi, Dann K.

    2002-01-01

    Tampa Bay depends on ground water for most of the water supply. Numerous wetlands and lakes in Pasco County have been impacted by the high demand for ground water. Central Pasco County, particularly the area within the Cypress Creek well field, has been greatly affected. Probable causes for the decline in surface-water levels are well-field pumpage and a decade-long drought. Efforts are underway to increase surface-water levels by developing alternative sources of water supply, thus reducing the quantity of well-field pumpage. Numerical ground-water flow simulations coupled with an optimization routine were used in a series of simulations to test the sensitivity of optimal pumpage to desired increases in surficial aquifer system heads in the Cypress Creek well field. The ground-water system was simulated using the central northern Tampa Bay ground-water flow model. Pumping solutions for 1987 equilibrium conditions and for a transient 6-month timeframe were determined for five test cases, each reflecting a range of desired target recovery heads at different head control sites in the surficial aquifer system. Results are presented in the form of curves relating average head recovery to total optimal pumpage. Pumping solutions are sensitive to the location of head control sites formulated in the optimization problem and as expected, total optimal pumpage decreased when desired target head increased. The distribution of optimal pumpage for individual production wells also was significantly affected by the location of head control sites. A pumping advantage was gained for test-case formulations where hydraulic heads were maximized in cells near the production wells, in cells within the steady-state pumping center cone of depression, and in cells within the area of the well field where confining-unit leakance is the highest. More water was pumped and the ratio of head recovery per unit decrease in optimal pumpage was more than double for test cases where hydraulic heads

  18. The chemical evolution of Kurnub Group paleowater in the Sinai-Negev province-a mass balance approach

    International Nuclear Information System (INIS)

    Rosenthal, E.; Jones, B.F.; Weinberger, G.

    1998-01-01

    The chemical evolution of the Kurnub Group paleowater was studied starting from rainwater in recharge areas of the Sinai and along groundwater flowpaths leading to the natural outlets of this regional aquifer. This was achieved by investigating the chemical composition of groundwater, ionic ratios, degrees of saturation with common mineral species, normative analysis of dissolved salts and by modeling of rock/water interaction and mixing processes occurring along groundwater flow paths. The initial groundwater composition used is from the Nakhel well in Sinai. It evolves from desert rainwater percolating through typical Kurnub Group lithology in Sinai. This rainwater dissolves mainly gypsum, halite and dolomite together with smaller amounts of marine aerosol and K-feldspar. At the same time it precipitates calcite, SiO 2 , smectite and degasses CO 2 . Between the area of Nakhel and the northern Negev the chemistry of Kurnub Group waters is influenced by dissolution of halite and lesser amounts of gypsum of surficial origin in recharge areas, small amounts of feldspars and of dolomite cement in sandstones eroded from the Arabo-Nubian igneous massif of Sinai and organic degradation-derived CO 2 . Concomitantly, there is precipitation of calcite, smectite, SiO 2 and probably analcime characteristic of sediments in continental closed basins. North of the Negev, the Kurnub Group fluids are diluted and altered by mixing with Judea Group aquifer groundwaters. On the E there is mixing with residual brines from the water body ancestral to the Dead Sea, prior to discharge into the Arava valley. Rock/water interaction indicated by NETPATH and PHREEQC modeling is in agreement with lithology and facies changes previously observed in the Kurnub Group sequence. (Copyright (c) 1998 Elsevier Science B.V., Amsterdam. All rights reserved.)

  19. Assessment of The Environmental Radioactivity Impacts and Health Hazards Indices at Wadi Sahu Area, Sinai, Egypt

    International Nuclear Information System (INIS)

    Said, A.F.; Hassan, S.F.; Mohamed, W.S.; Salam, A.M.

    2011-01-01

    The natural radionuclide ( 238 U, 232 Th, 226 Ra and 40 K) contents of soil and rock samples at various locations in Wadi Sahu area, Sinai, Egypt were studied using spectrometric techniques. The estimation of radioactivity hazard indices radium equivalent (Raeq), external hazards (Hex) and internal hazards (Hin) beside European Commission index (IEC) in building materials have been derived. Also, integrated measurements for radon gas concentrations beside gamma dose exposure were taken at these locations. The concentration of radon-222 in unit of kBqm -3 , gamma dose in mSv/h and the annual effective dose rate (EDR) in mSv/a were estimated. The average of the radioactivity hazard indices and radium equivalent values are little more than restricted levels for the public.So,some precautions and recommendations should be follow and take into consideration for the public residences in this area. The effective annual dose rate (EDR) of the total area is ranging between 0.18 - 3.50 mSv/a with average value 1.84 mSv/a.The etch track detector using CR - 39 for radon (Rn - 222) subsurface at the studied locations gives an indication and promissining to uranium occurrence in some regions under study

  20. Hydrochemical and multivariate analysis of groundwater quality in the northwest of Sinai, Egypt.

    Science.gov (United States)

    El-Shahat, M F; Sadek, M A; Salem, W M; Embaby, A A; Mohamed, F A

    2017-08-01

    The northwestern coast of Sinai is home to many economic activities and development programs, thus evaluation of the potentiality and vulnerability of water resources is important. The present work has been conducted on the groundwater resources of this area for describing the major features of groundwater quality and the principal factors that control salinity evolution. The major ionic content of 39 groundwater samples collected from the Quaternary aquifer shows high coefficients of variation reflecting asymmetry of aquifer recharge. The groundwater samples have been classified into four clusters (using hierarchical cluster analysis), these match the variety of total dissolvable solids, water types and ionic orders. The principal component analysis combined the ionic parameters of the studied groundwater samples into two principal components. The first represents about 56% of the whole sample variance reflecting a salinization due to evaporation, leaching, dissolution of marine salts and/or seawater intrusion. The second represents about 15.8% reflecting dilution with rain water and the El-Salam Canal. Most groundwater samples were not suitable for human consumption and about 41% are suitable for irrigation. However, all groundwater samples are suitable for cattle, about 69% and 15% are suitable for horses and poultry, respectively.

  1. LAND SUITABILITY SCENARIOS FOR ARID COASTAL PLAINS USING GIS MODELING: SOUTHWESTERN SINAI COASTAL PLAIN, EGYPT

    Directory of Open Access Journals (Sweden)

    Ahmed Mohamed Wahid

    2009-12-01

    Full Text Available Site selection analysis was carried out to find the best suitable lands for development activities in an example of promising coastal plains, southwestern Sinai, Egypt. Two GIS models were developed to represent two scenarios of land use suitability in the study area using GIS Multi Criteria Analysis Modeling. The factors contributed in the analysis are the Topography, Land cover, Existing Land use, Flash flood index, Drainage lines and Water points. The first scenario was to classify the area according to various gradual ranges of suitability. According to this scenario, the area is classified into five classes of suitability. The percentage of suitability values are 51.16, 6.13, 22.32, 18.49 and 1.89% for unsuitable, least suitable, low suitable, suitable and high suitable, respectively. The second scenario is developed for a particular kind of land use planning; tourism and recreation projects. The suitability map of this scenario was classified into five values. Unsuitable areas represent 51.18% of the study area, least suitable 16.67%, low suitable 22.85%, suitable 8.61%, and high suitable 0.68%. The best area for locating development projects is the area surrounding El-Tor City and close to the coast. This area could be an urban extension of El-Tor City with more economical and environmental management.

  2. Construção de um aplicativo digital para o ensino de sinais vitais

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    Francisco Gilberto Fernandes Pereira

    Full Text Available RESUMO Objetivo Descrever a etapa de criação de um aplicativo digital direcionado ao ensino de sinais vitais para acadêmicos de enfermagem. Método Trata-se de um estudo metodológico, desenvolvido entre março a outubro de 2014, no qual foram seguidas as etapas de análise, desenho e desenvolvimento da ferramenta tecnológica, com base no referencial teórico de Galvis-Panqueva. Realizou-se uma revisão narrativa da literatura sobre o tema e, em seguida, escolheu-se a melhor plataforma para a hospedagem do aplicativo. Resultados Seguidas as fases propostas no referencial teórico, a análise permitiu delimitar conteúdo e infraestrutura tecnológica; já o desenho proporcionou a avaliação do ambiente e sua interface e operacionalização e, por fim, o desenvolvimento materializou a projeção do desenho e recursos interativos propostos na etapa anterior. Conclusão O aplicativo constitui um suporte interativo na formação de estudantes de enfermagem, e sugere-se que seja realizada sua validação de conteúdo para aplicação prática posterior.

  3. Genetic and nutritional characterization of some macrophytes, inhabiting the Bardawil Lagoon, Sinai, Egypt

    Directory of Open Access Journals (Sweden)

    Hosam E. Elsaied

    2015-12-01

    Full Text Available The ecological and economical significances of macrophytes, inhabiting the Mediterranean Lagoon, Bardawil, northern Sinai, Egypt, are still ambiguous, due to lack of knowledge. This study focused on genetic and nutritional characterization of three dominant macrophyte species at Bardawil Lagoon. Genetic identifications were done through genomic DNA extraction, followed by PCR amplifications and sequencing of 18S rRNA genes of the studied species. Phylogenetic analyses indicated that two of the recorded species showed homologies with the seagrass species, Posidonia oceanica and Halophila ovalis, with nucleotide identities 94.5% and 96.8%, respectively. The third species showed a unique phylogenetic lineage, representing nucleotide identity average, 86.5%, among the brown seaweeds, Heterokontophyta. Nutritional analyses indicated that the recorded seaweed-like macrophyte had the highest recommended nutritional contents, crude protein, 24.67%, with a total amino acid composition of 6.64 g/100 g protein, and carbohydrate, 38.16%, besides a calorific value of 3.063 K cal/g, among the studied macrophytes. To the best of our knowledge, this is the first attempt to characterize macrophyte community in Bardawil Lagoon, using both genetic and biochemical approaches.

  4. Investigation of Groundwater transport using environmental isotopes along the north-eastern part of sinai peninsula

    International Nuclear Information System (INIS)

    Hamza, M.S.; Awad, M.A.; Nada, A.A.; Abd El-Samie, S.G.; Zaghloul, A.

    1998-01-01

    Fourteen groundwater samples were collected from the north-eastern part of sinai peninsula representing different eater bearing formations from younger to older: The sand and gravel interbeds (quaternary), the fissured and fracture limestone of eocene and upper cretaceous and the fractured sandstone (Lower cretaceous). The chemical and isotopic analysis reflected the changes in the meteoric origin of the groundwater in these aquifers with respect to the recharge sources and the rock types. The groundwater in the quaternary aquifer have the metric water type which are affected by evaporation and sea spray deposits. The majority of the wells tapping in the eocene aquifer have the fresh water character while the other have the marine water originated from two sources; the first is the dissolution of the host rock (mainly limestone) which increase the groundwater salinity without changes in the isotopic content. The second source is mixing with connote water seeped to the aquifer through cracks and causing isotopic enrichment in these samples. Otherwise, the depleted values of the stable isotopes in the groundwater of lower and Upper cretaceous represent mixing with palaeo water in these aquifers. High values of tritium content were detected in wells in the eastern part. Further survey is needed to follow up the tritium content

  5. The endoparasites of sheep and goats, and shepherd in North Sinai Governorate, Egypt.

    Science.gov (United States)

    Mazyad, Said A M; el-Nemr, Hossam I

    2002-04-01

    Examination of sheep and goats in four areas in North Sinai revealed an overall infection of 12.70% with Fasciola species, 11.8% with Paramphistomum cerve, 12.80% with Moniezia expansa, 47.11% with Trichostrongylus colubriformis, 4.59% Trichuris ovis and 44.85% Coccidia. The highly infected sheep and goats were diagnosed in El Hassanah center (90.49%), followed by Al Arish city (87.31%), then Rafah city (74.39%), and lastly Bir Al Abd (54.71%). The elevation of the overall percent of infection in the four areas was due to Coccidia infection. This parasite was a concomitant infection in nearly all animals. On the other hand, examination of fifteen of the shepherds revealed Ascaris lumbricoides in four, T. colubriformis in three, Fasciala in one, Giardia lamblia in ten and Coccidia in three. Double and rarely, triple infection was seen. The correlation between parasitic infections in sheep and goats, and their shepherd was discussed.

  6. Linear growth of the entanglement entropy and the Kolmogorov-Sinai rate

    Science.gov (United States)

    Bianchi, Eugenio; Hackl, Lucas; Yokomizo, Nelson

    2018-03-01

    The rate of entropy production in a classical dynamical system is characterized by the Kolmogorov-Sinai entropy rate h KS given by the sum of all positive Lyapunov exponents of the system. We prove a quantum version of this result valid for bosonic systems with unstable quadratic Hamiltonian. The derivation takes into account the case of time-dependent Hamiltonians with Floquet instabilities. We show that the entanglement entropy S A of a Gaussian state grows linearly for large times in unstable systems, with a rate Λ A ≤ h KS determined by the Lyapunov exponents and the choice of the subsystem A. We apply our results to the analysis of entanglement production in unstable quadratic potentials and due to periodic quantum quenches in many-body quantum systems. Our results are relevant for quantum field theory, for which we present three applications: a scalar field in a symmetry-breaking potential, parametric resonance during post-inflationary reheating and cosmological perturbations during inflation. Finally, we conjecture that the same rate Λ A appears in the entanglement growth of chaotic quantum systems prepared in a semiclassical state.

  7. Is West Nile virus a potential cause of central nervous system infection in Brazil? Seria o vírus do Oeste do Nilo causa potencial de infecção no sistema nervoso central no Brasil?

    Directory of Open Access Journals (Sweden)

    Cristiane N Soares

    2010-10-01

    Full Text Available Meningitis and encephalitis are complications of West Nile virus (WNV infection. Although WNV is endemic in North America, the virus has recently been reported in Colombia and Argentina. Investigation of WNV in Brazil is important since this virus has never been studied previously in this country. OBJECTIVE: To investigate the presence of WNV infection in viral encephalitis/meningitis cases of unknown etiology in the city of Rio de Janeiro, Brazil. METHOD: Thirty-seven adults with viral meningitis/encephalitis had their serum and CSF tested for WNV antibodies using the ELISA method. RESULTS: Only one case was WNV-positive, but this case was also positive for dengue. The plaque reduction neutralization test distinguished infections, and was negative for WNV. CONCLUSION: WNV can be confused with dengue infection. Their symptoms and neurological picture are similar. We did not find WNV in any patients with encephalitis and meningitis in the city of Rio de Janeiro. Up to now, it has not been detected in BrazilMeningite e encefalite são complicações da infecção pelo vírus do Oeste do Nilo (VON. Embora o VON seja endêmico na América do Norte, recentemente o vírus foi descrito na Colômbia e Argentina. Sua pesquisa no Brasil é importante uma vez que o vírus nunca fora estudado antes em nosso país. OBJETIVO: Investigar a presença do VON em casos de meningite e encefalite viral de etiologia desconhecida, na cidade no Rio de Janeiro, Brasil. MéTODO: Trinta e sete adultos com quadro de meningite/encefalite tiveram seu LCR e soro testados para anticorpos anti-VON, pelo método ELISA. RESULTADOS: Apenas um caso obteve sorologia positiva para VON, mas a sorologia para dengue também fora positiva. O teste da neutralização por redução de placa foi utilizado para distinção entre as infecções, sendo negativo para VON. CONCLUSÃO: A infecção por VON pode ser confundida com a infecção pelo vírus da dengue, seus sintomas e quadro neurol

  8. Cooperation and Competition: The Comparative Assessment of Tribal Dynamics in the Marginal Landscapes of the Wadi el-Hasa, in west-central Jordan in the Early Bronze and Iron ages

    Directory of Open Access Journals (Sweden)

    Bulent Arikan

    2011-12-01

    Full Text Available The issue of emergent social complexity has long been debated in the anthropological literature. In the eastern Mediterranean context, the archaeological discussions of social complexity focused largely on societies that showed centralized administration, hierarchic social formations, and large urban centers in temperate parts of the region. For the marginal landscapes in the eastern Mediterranean, such as semi-desert regions, scholars have long denied social complexity on the basis of lack of attributes listed in traditional frameworks of complexity. Recently however, alternate models of complexity have been developed for tribal societies following heterarchy and corporate mode of complexity. In these models, the concepts of group fusion (i.e., cooperation and fission (i.e., competition have significant roles and they need to be examined in more detail, especially about how we can identify these group dynamics in the archaeological record, specifically in the settlement systems. This article focuses on the Early Bronze I-III (ca. 3,500-2,400 BC and the Iron Age (ca. 1,200-500 BC of the Wadi el-Hasa, in west-central Jordan, for the evolution of settlement systems as a result of tribal cooperation/competition strategies and the emergence of long-distance trade, which allowed tribes not only to thrive economically but also gain political significance in a marginal landscape in the southern Levant. The use of relatively new analytical methods in archaeology, such as the geographical information systems, for assessing temporal changes in spatial distribution of sites, identifying trade routes, determining the impacts of long-distance trade and other socio-political events in the region on the settlement systems of the Hasa has been discussed.

  9. Investigation of Alaska's uranium potential. Part 1. Reconnaissance program, West-Central Alaska and Copper River basin. Part 2. Uranium and thorium in granitic and alkaline rocks in Western Alaska

    International Nuclear Information System (INIS)

    Eakins, G.R.; Jones, B.K.; Forbes, R.B.

    1977-02-01

    A 6-week reconnaissance program was conducted in west-central Alaska and in the Copper River basin--Chitina River valley area to aid in determining the uranium potential of the state. Division personnel also submitted samples from the Healy, Eagle, and Charley River quadrangles. Collected were 916 stream-sediment samples and 427 bedrock samples for uranium, thorium, and potassium oxide determinations, and 565 water samples for uranium analyses. A statistical analysis of the determinations was made using a computer at the University of Alaska. Thresholds, anomalies, and U:Th ratios were calculated for eight separate regions. Anomalous values of the U, Th, and K 2 O, and radiometric measurements are discussed. A combination of all uranium exploration techniques is needed to locate potential uranium deposits in Alaska. Correlations between aerial and ground radiometric surveys and geochemical surveys were often lacking, indicating that each method may or may not be effective, depending on local conditions. One hundred and eight rock samples were selected from traverses across five plutons in western Alaska and analyzed for uranium, thorium, and potassium. The highest uranium concentrations detected were 86 and 92 ppM from a mineralized dike intrusion zone in the Selawik Lake Complex. Analysis of individual plutons yields strong correlations between mineralogy and radioactivity. The mineralogical variable that correlates with uranium or thorium varies from one pluton to the next. Based on these correlations, mineralogical guidelines are offered for the selection of uranium enriched variants in four of the five plutons

  10. Benthic habitat map of the U.S. Coral Reef Task Force Watershed Partnership Initiative Kā'anapali priority study area and the State of Hawai'i Kahekili Herbivore Fisheries Management Area, west-central Maui, Hawai'i

    Science.gov (United States)

    Cochran, Susan A.; Gibbs, Ann E.; White, Darla J.

    2014-01-01

    Nearshore areas off of west-central Maui, Hawai‘i, once dominated by abundant coral coverage, now are characterized by an increased abundance of turf algae and macroalgae. In an effort to improve the health and resilience of the coral reef system, the Kahekili Herbivore Fisheries Management Area was established by the State of Hawai‘i, and the U.S. Coral Reef Task Force selected the Kā‘anapali region as a priority study area. To support these efforts, the U.S. Geological survey mapped nearly 5 km2 of sea floor from the shoreline to water depths of about 30 m. Unconsolidated sediment (predominantly sand) constitutes 65 percent of the sea floor in the mapped area. Reef and other hardbottom potentially available for coral recruitments constitutes 35 percent of the mapped area. Of this potentially available hardbottom, only 51 percent is covered with a minimum of 10 percent coral, and most is found between 5 and 10 m water depth.

  11. Cataract prevalence in Central-West region of São Paulo State, Brazil Prevalência de catarata na região centro-oeste do Estado de São Paulo, Brasil

    Directory of Open Access Journals (Sweden)

    Gabriel Arantes Carlos

    2009-06-01

    Full Text Available PURPOSE: Cataract is considered the main preventable cause of blindness and visual impairment mainly in poor countries. This study was done to evaluate if cataract is still an important cause of blindness in Central-West region of State of São Paulo, Brazil. METHODS: A cross-sectional study was conducted with a systematically randomized sample of households in five cities located in Central-West region of São Paulo State, Brazil. The sample consisted of 4,229 individuals (8,458 eyes of all ages. All household members were considered eligible. They were submitted to a complete ophthalmological examination (visual acuity with and without visual correction, biomicroscopy, fundoscopy, tonometry, and refractometry. Cataract diagnosis was given to eyes presenting lens opacity in biomicroscopy exam, according to Lens Opacities Classification System II (LOCS II. Eye with a best correction, presenting visual deficiency or blindness caused by cataract was considered after excluded other pathologies that decrease visual acuity (VA. We considered as visual deficiency eyes with 0.05 OBJETIVO: A catarata é a principal causa tratável de cegueira e deficiência visual em países subdesenvolvidos. Este estudo foi realizado para avaliar se a catarata continua sendo uma importante causa de cegueira no centro-oeste do Estado de São Paulo. MÉTODOS: Um estudo transversal, de caráter observacional, realizado em cinco cidades da região centro-oeste do Estado de São Paulo, para as quais o centro de referência é a cidade de Botucatu. A amostra estabelecida para este estudo, de forma aleatória, seria composta por 5.555 indivíduos, sendo que foram examinados 4.229 indivíduos (8.458 olhos, ou seja, 78% da amostra pretendida. Os indivíduos foram submetidos a um exame oftalmológico completo que consistia em avaliação da acuidade visual (com e sem correção, tonometria, biomicroscopia, fundoscopia e exame refracional. O diagnóstico de catarata foi dado aos

  12. West and Central Africa Symposium infographic charts

    International Development Research Centre (IDRC) Digital Library (Canada)

    fdieudonne

    in the Democratic Republic of Congo, Côte d'Ivoire, and Ghana? States, local communities and populations, and development partners should: Address unemployment, especially for young men and women. Support local structures and inclusive security that promote resocialization of young criminals. Promote compulsory.

  13. Infarto cerebral e edema avaliação prognóstico-evolutiva por sinais neurológicos

    OpenAIRE

    Rubens José Gagliardi; Marilda Lauretti da Silva Guedes; Pedro Covo

    1991-01-01

    Trata-se de estudo prospectivo abrangendo 92 doentes com infarto cerebral (IC). O seguimento foi feito durante 10 dias com avaliação diária, sendo os doentes analisados por escala de notas para diferentes sinais costumeiramente pesquisados nesses casos. A metodologia foi especialmente desenvolvida no sentido de analisar exclusivamente alterações devidas ao edema oriundo da isquemia e IC. As conclusões foram obtidas por comparação isolada das médias das notas de cada sinal com a média do total...

  14. Late Neoproterozoic adakitic lavas in the Arabian-Nubian shield, Sinai Peninsula, Egypt

    Science.gov (United States)

    Abdelfadil, Khaled M.; Obeid, Mohamed A.; Azer, Mokhles K.; Asimow, Paul D.

    2018-06-01

    The Sahiya and Khashabi volcano-sedimentary successions are exposed near the southern tip of the Sinai Peninsula, the northernmost segment of the Arabian-Nubian Shield (ANS). These Neoproterozoic successions include a series of intermediate to acidic lavas and associated pyroclastic deposits. Field observations and geochemical data reveal two distinct eruptive phases. The lavas representing each phase are intercalated with volcaniclastic greywackes and siltstones. The first eruptive phase, well exposed at Wadi Sahiya, includes basaltic andesite, andesite and dacite with minor rhyolite. The rocks of this sequence are at most weakly deformed and slightly metamorphosed. The second eruptive phase, well exposed at Wadi Khashabi, includes only undeformed and unmetamorphosed dacite and rhyolite. The two volcano-sedimentary successions were separated and dismembered during intrusion of post-collisional calc-alkaline and alkaline granites. Geochemical compositions of the Sahiya and Khashabi volcanic rocks confirm the field data indicating discrete phases of magmatism, however all the compositions observed might plausibly be derived from a common source and be related to one another dominantly through fractional crystallization. The low and variable Mg# values (55-33) measured in the basaltic andesites and andesites preclude their equilibration with a mantle source. Rather, even the most primitive observed lavas are already the products of significant fractional crystallization, dominated by removal of amphibole and plagioclase. Continued fractionation eventually produced dacite and rhyolite marked by significant depletion in Y and HREE. The gradual appearance of negative Nb-Ta anomalies with increasing SiO2 through both suites suggests at least some component of progressive crustal contamination. The medium- to high-K calc-alkaline character of the Sahiya and Khashabi volcanics could be explained either by their formation at an active continental margin or by a two

  15. Projeto e desenvolvimento de um sistema multicanal de biotelemetria para detecção de sinais ECG, EEG e EMG

    OpenAIRE

    Caparelli, Thiago Bruno

    2007-01-01

    O emprego de novas técnicas na aquisição, processamento e análise de sinais bioelétricos, têm contribuído significativamente para o melhoramento dos processos de monitoramento fisiológico de indivíduos. Porém, em muitas situações deseja-se registrar aqueles sinais concomitantemente com monitoração e execução de movimentos livres, como durante corridas e saltos. A forma convencional de registro utiliza, normalmente, conexões de fios aos indivíduos, dificultando sobremaneira a ...

  16. Prevalence of malnutrition among HIV-infected children in Central and West-African HIV-care programmes supported by the Growing Up Programme in 2011: a cross-sectional study.

    Science.gov (United States)

    Jesson, Julie; Masson, David; Adonon, Arsène; Tran, Caroline; Habarugira, Capitoline; Zio, Réjane; Nicimpaye, Léoncie; Desmonde, Sophie; Serurakuba, Goreth; Kwayep, Rosine; Sare, Edith; Konate, Tiefing; Nimaga, Abdoulaye; Saina, Philemon; Kpade, Akossiwa; Bassuka, Andrée; Gougouyor, Gustave; Leroy, Valériane

    2015-05-26

    The burden of malnutrition among HIV-infected children is not well described in sub-Saharan Africa, even though it is an important problem to take into account to guarantee appropriate healthcare for these children. We assessed the prevalence of malnutrition and its associated factors among HIV-infected children in HIV care programmes in Central and West-Africa. A cross-sectional study was conducted from September to December 2011 among the active files of HIV-infected children aged 2-19 years old, enrolled in HIV-care programmes supported by the Sidaction Growing Up Programme in Benin, Burundi, Cameroon, Côte d'Ivoire, Mali, Chad and Togo. Socio-demographics characteristics, anthropometric, clinical data, and nutritional support were collected. Anthropometric indicators, expressed in Z-scores, were used to define malnutrition: Height-for-age (HAZ), Weight-for-Height (WHZ) for children children ≥5 years. Three types of malnutrition were defined: acute malnutrition (WHZ/BAZ malnutrition (HAZ malnutrition (WHZ/BAZ malnutrition. Overall, 1350 HIV-infected children were included; their median age was 10 years (interquartile range [IQR]: 7-13 years), 49 % were girls. 80 % were on antiretroviral treatment (ART), for a median time of 36 months. The prevalence of malnutrition was 42 % (95 % confidence interval [95% CI]: 40-44 %) with acute, chronic and mixed malnutrition at 9 % (95% CI: 6-12 %), 26 % (95% CI: 23-28 %), and 7 % (95% CI: 5-10 %), respectively. Among those malnourished, more than half of children didn't receive any nutritional support at the time of the survey. Acute malnutrition was associated with male gender, severe immunodeficiency, and the absence of ART; chronic malnutrition with male gender and age (malnutrition with male gender, age (malnutrition. The prevalence of malnutrition in HIV-infected children even on ART remains high in HIV care programmes. Anthropometric measurements and appropriate nutritional care of malnourished HIV

  17. Representação pictórica da língua de sinais: trajetória histórica

    Directory of Open Access Journals (Sweden)

    Cássia Geciauskas Sofiato

    2017-01-01

    Full Text Available A necessidade de registro das línguas de sinais sempre esteve presente na educação de surdos. Esse estudo de caráter bibliográfico destaca as primeiras tentativas de representação gráfica do alfabeto manual e de línguas de sinais em diferentes períodos históricos até o ano de 1960, ano em que as pesquisas línguístícas surgem em relação a tal língua. O objetivo deste estudo é o de fornecer informações que levem a compreender como ocorreram os primeiros registros, quem foram os seus autores e quais eram os discursos sobre os sinais desenhados à época de cada produção. Observa-se que ao longo da história muitas tentativas de representação surgiram e algumas constituíram-se como alicerces para os tipos de produção gráfica que temos na contemporaneidade. E neste sentido, as pesquisas de William Stokoe, linguista americano, tiveram um papel decisivo: o de comprovar cientificamente que as línguas de sinais se constituem verdadeiramente como línguas.

  18. Successive Recovery of Copper and Uranium From Carbonate-Rich Latosol, Um Bogma Formation, Abuthor Locality, South Western Sinai, Egypt

    International Nuclear Information System (INIS)

    El-Sheikh, E.M.; Amin, M.M.; Aita, S.K.; Rezk, A.A.

    2013-01-01

    A technological sample of a copper/ uranium mineralization in carbonate rich latosol rock sequence of Urn Bogma Formation Abu Thor locality at southwestern Sinai, Egypt, has been properly processed. The working sample assaying 12.5 % CuO and 875 ppm U was subjected to adipic acid leaching for copper followed by bioleaching of uranium in a manner to avoid excessive acid consumption in the classical leaching procedure. It is thus possible to achieve leaching efficiencies of 95% for Cu in the first stage and 82% for U in the second stage. From the two separately obtained leach liquors of Cu and uranium, pure products have conveniently been prepared. Accordingly, Cu adipate product was first prepared by crystallization,followed by acid dissolution and alkali precipitation of copper hydroxide. In case of uranium, the impure precipitate of the bioleach liquor is purified via Amberlite IRA-400 anion exchanger resin

  19. Petrologic and geochemical characterization and mineralization of the metavolcanic rocks of the Heib Formation, Kid Metamorphic Complex, Sinai, Egypt

    Directory of Open Access Journals (Sweden)

    Ibrahim H. Khalifa

    2011-07-01

    Full Text Available Metavolcanic rocks hosting base metal sulphide mineralization, and belonging to the Kid Metamorphic Complex, are exposed in the Samra-Tarr area, Southern Sinai. The rocks consist of slightly metamorphosed varicolored porphyritic lavas of rhyolite-to-andesite composition, and their equivalent pyroclastics. Geochemically, these metavolcanics are classified as high-K calc-alkaline, metaluminous andesites, trachyandesites, dacites, and rhyolites. The geochemical characteristics of these metavolcanics strongly point to their derivation from continental crust in an active continental margin. The sulphide mineralization in these metavolcanics occurs in two major ore zones, and is represented by four distinct styles of mineralization. The mineralization occurs either as low-grade disseminations or as small massive pockets. The associated hydrothermal alterations include carbonatization, silicification, sericitization and argillic alterations. The base metal sulphide mineralization is epigenetic and was formed by hydrothermal solutions associated with subduction-related volcanic activity.

  20. Disfunções temporomandibulares: sinais, sintomas e abordagem multidisciplinar Temporomandibular Disorders: signs, symptoms and multidisciplinary approach

    Directory of Open Access Journals (Sweden)

    Mariana Del Cistia Donnarumma

    2010-10-01

    Full Text Available OBJETIVO: verificar perfil, queixa e principais sinais e sintomas de uma amostra de pacientes com disfunção temporomandibular que estiveram ou estão em tratamento ortodôntico e observar a ocorrência de atendimentos multidisciplinares. MÉTODOS: foram coletados dados de 125 prontuários em uma clínica odontológica da cidade de Sorocaba e os itens analisados nos prontuários foram: sexo, idade, profissão, queixa, três principais sinais e sintomas dos pacientes e se houve encaminhamento para avaliação fonoaudiológica, fisioterápica e psicológica. RESULTADOS: predominância feminina, sendo 107 mulheres (85,6% e 18 homens (14,4%. Média de idade de 35 anos, sendo a menor idade 14 anos e a maior 74 anos. Relação da disfunção temporomandibular com as profissões: 43 (34,4% eram profissionais com vínculo empregatício. Queixa trazida pelo paciente: dor na região da articulação temporomandibular e masseter: 86 - (68,8%. Três principais sinais e sintomas observados na avaliação ortodôntica: dor na região da articulação temporomandibular e masseter: 98 - 78,4%; estalos unilaterais: 55 - 44% e travamento: 23 - 18,4%. Conduta de encaminhamentos: fonoaudiologia 59 (47,2%; fisioterapia 40 (32% e psicologia 53 (42,4%. CONCLUSÃO: na amostra pesquisada, a prevalência de casos de disfunção temporomandibular foi maior no sexo feminino, com queixa de dor. Os principais sinais e sintomas foram: dor, estalo unilateral e travamento e houve encaminhamento para atendimentos multidisciplinares nas áreas de Fonoaudiologia, Fisioterapia e Psicologia.PURPOSE: to check the main signs and symptoms of a sample of patients with temporomandibular dysfunction that were or are under orthodontic treatment and observe if there was a possible multidisciplinary treatment. METHODS: data from 125 medical records collected in a orthodontic clinic located in Sorocaba and the analyzed items were: gender, age, profession, complains, three main signs and

  1. Facies and sedimentary environments of the Abu Qada Formation at Gabal El-Gunna, Southeastern Sinai, Egypt

    Directory of Open Access Journals (Sweden)

    Tarek Y.M.A. El-Hariri

    2012-06-01

    Full Text Available The biostratigraphy, microfacies association, mineralogical interferences, depositional environments and geochemical properties of the Abu Qada Formation, which exposed at Gabal El-Gunna Southeastern Sinai, Egypt were delineated. It belongs to the planktonic foraminiferal Whiteinella archaeocretacea Zone of the Late Cenomanian-Early Turonian and consists of calcareous shale and limestone. The calcareous shale facies is characterized by chlorite, smectite and illite with high concentration of P2O5, Zn, Ni, V, and Cr. The carbonate rocks are characterized by foraminiferal wakestone and bioclastic grainstone. These microfacies associations are characterized by barite with high content of Sr. The facies types with faunal contents, geochemical and mineralogical studies suggest a restricted to shelf lagoon open circulation environment.

  2. Nonequilibrium steady state and induced currents of a mesoscopically glassy system: interplay of resistor-network theory and Sinai physics.

    Science.gov (United States)

    Hurowitz, Daniel; Rahav, Saar; Cohen, Doron

    2013-12-01

    We introduce an explicit solution for the nonequilibrium steady state (NESS) of a ring that is coupled to a thermal bath, and is driven by an external hot source with log-wide distribution of couplings. Having time scales that stretch over several decades is similar to glassy systems. Consequently there is a wide range of driving intensities where the NESS is like that of a random walker in a biased Brownian landscape. We investigate the resulting statistics of the induced current I. For a single ring we discuss how sign of I fluctuates as the intensity of the driving is increased, while for an ensemble of rings we highlight the fingerprints of Sinai physics on the distribution of the absolute value of I.

  3. Infarto cerebral e edema avaliação prognóstico-evolutiva por sinais neurológicos

    Directory of Open Access Journals (Sweden)

    Rubens José Gagliardi

    1991-03-01

    Full Text Available Trata-se de estudo prospectivo abrangendo 92 doentes com infarto cerebral (IC. O seguimento foi feito durante 10 dias com avaliação diária, sendo os doentes analisados por escala de notas para diferentes sinais costumeiramente pesquisados nesses casos. A metodologia foi especialmente desenvolvida no sentido de analisar exclusivamente alterações devidas ao edema oriundo da isquemia e IC. As conclusões foram obtidas por comparação isolada das médias das notas de cada sinal com a média do total das notas. Os resultados mostram que o exame da «consciência», isoladamente, é o melhor parâmetro clínico para averiguar a evolução do doente após um IC, sem outras complicações que não o edema.

  4. Radiological Studies in the Hot Spring Region of Oyoun Mossa and Hammam Faraun Thermal Spring Areas in Western Sinai

    International Nuclear Information System (INIS)

    Ramadan, Kh.A.; Badran, H.M.; Ramadan, Kh.A.; Seddeek, M.K.; Sharshar, T.; Sharshar, T.

    2009-01-01

    Radioactivity in and around the two hot springs, Oyoun Mossa and Hammam Faraun, Western Sinai has been determined. The ground water, sediment and sand samples were measured by gamma-ray spectrometer for 232 Th, 226 Ra and 40 K isotopes. The enrichment of 226 Ra in Hammam Faraun hot spring was the most prominent feature. The concentration of 226 Ra in Oyoun Mossa and Hammam Faraun hot springs are 68 and 2377 Bq/kg for sediments, 3.5 and 54.7 Bq/kg for wild plants, and 205 and 1945 mBq/l for the ground water, respectively. In addition, the concentration of sand samples are 14 times larger in the area of Hammam Faraun compared with that of Oyoun Mossa. On the other hand, the concentration of 232 Th in different samples are comparable in the two areas while 137 Cs concentrations are relatively higher in Oyoun Mossa. For the purpose of comparison, sand samples were collected from two locations 5-12 km away from each spring. The activity concentrations of the four locations are comparable and in agreement with those from the area of the two springs except in one case. The major difference was the activity concentration of 226 Ra in the area of Hammam Faraun, which is much higher. The concentrations of all detected isotopes in water samples from these two springs are much higher than that detected in 27 natural wells in north Sinai. The results of the present study indicate that water only in Hammam Faraun hot spring is contaminated with 238 U-isotopes and the surrounding area is affected by this contamination. The calculated annual effective dose equivalents in the surroundings of Hammam Faraun (81.8 μSv) is superior to the maximum contaminant levels recommended.

  5. What's West Nile Virus?

    Science.gov (United States)

    ... for Educators Search English Español What's West Nile Virus? KidsHealth / For Kids / What's West Nile Virus? Print en español ¿Qué es el Virus del Nilo Occidental? What exactly is the West ...

  6. Roundwood markets and utilization in West Virginia and Ohio

    Science.gov (United States)

    Shawn T. Grushecky; Jan Wiedenbeck; Ben. Spong

    2011-01-01

    West Virginia and Ohio have similar forest resources and extensive forest-based economies. Roundwood is harvested throughout this central Appalachian region and supports a diverse primary and secondary forest products sector. The objective of this research was to investigate the utilization of the forest resource harvested in West Virginia and Ohio. Utilization and...

  7. West African Journal of Industrial and Academic Research ...

    African Journals Online (AJOL)

    Prof. Osuagwwu

    West African Journal of Industrial and Academic Research December 2016 v0l. ... 1Civil Engineering Department, Collage of Science and Engineering .... P.K. Guha (2009) maintenance and Repairs of Buildings published by new central Book ...

  8. Institutionalizing Ecosystem Approaches to Human Health in West ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    ... research in the areas of water, transmissible diseases and climate change. However, the quality of the curriculums and the pedagogical tools developed did not meet ... The project will involve expert members of the West and Central African ...

  9. Solar radiation at Parsons, West Virginia

    Science.gov (United States)

    James H. Patric; Stanley Caruso

    1978-01-01

    Twelve years of solar radiation data, measured with a Kipp-Zonen pyranometer, were recorded near Parsons, West Virginia. The data agree well with calculated values of potential and average radiation for the vicinity and are applicable to the central Appalachian region.

  10. SUPRESSIVIDADE NATURAL DE SOLOS DA REGIÃO CENTRO-OESTE A Rhizoctonia solani KÜHN NATURAL SUPPRESSIVENESS OF SOILS FROM WEST CENTRAL BRAZIL TO Rhizoctonia solani Kühn

    Directory of Open Access Journals (Sweden)

    Sheila Andrade Botelho

    2007-09-01

    some soils previously submitted to different managements from West Central Brazil. Soil samples were collected in Itumbiara, Silvânia, Jussara and Santa Helena de Goiás counties of Goiás State, and classified as: Purple Latosol, Dark-Red Latosol, Sandy Soil and Purple Latosol, respectively. Each soil sample was collected in the layer of 0-20 cm, in contiguous areas with the following characteristics: a soil cultivated with beans irrigated with central pivot, for more than four consecutive years; b soil under native vegetation, and c soil under Brachiaria decubens pasture. Sorghum grains colonized by Rhizoctonia solani, were ground and mixed to the soil samples. Six inoculum densities were used: 0, 100, 500, 1000, 5000 and 10000 propagules per gram of soil. The experiment was conducted under greenhouse conditions, using a randomized complete block design, in a factorial scheme 6 x 4 x 3, with four replications. The experimental unit was a plastic tray with 4 kg of soil and 40 plants. Fifteen days after the emergence symptoms severity were evaluated and the McKinney index estimated. The analysis of variance revealed significance of triple interaction and the degrees of freedom were unfolded in regression analyses among the inoculum doses and the disease index in percentage, in the following exponential equation: ID = A x e (-B/dose do inóculo + 1. In the soil samples from Itumbiara and Silvânia the disease index increased with the increment of the number of propagules for gram of soil, reaching values larger than 70%. However, for both soils, there were no significant differences among the natural vegetation, pasture and bean cultivated soils. On the other hand, in soils from Jussara and Santa Helena, in spite of the disease index increment with the increase of the inoculum doses, the natural and pasture soils showed similar disease indexes for all the inoculum doses used. In soil from irrigated beans, the increment in the diseases index was smaller, not surpassing

  11. Signs and symptoms of temporomandibular disorders in adolescents Sinais e sintomas de disfunção temporomandibular em adolescentes

    Directory of Open Access Journals (Sweden)

    Leonardo Rigoldi Bonjardim

    2005-06-01

    Full Text Available The aim of this study was to verify the prevalence of signs and symptoms of temporomandibular disorders (TMD in adolescents and its relationship to gender. The sample comprised 217 subjects, aged 12 to 18. The subjective symptoms and clinical signs of TMD were evaluated, using, respectively, a self-report questionnaire and the Craniomandibular Index, which has 2 subscales; the Dysfunction Index and the Palpation Index. The results of muscle tenderness showed great variability (0.9-32.25%. In relation to the temporomandibular joint, tenderness of the superior, dorsal and lateral condyle regions occurred in 10.6%, 10.6% and 7.83%, respectively, of the sample. Joint sound during opening was present in 19.8% of the sample and during closing in 14.7%. The most prevalent symptoms were joint sounds (26.72% and headache (21.65%. There was no statistical difference between genders (p > 0.05, except for the tenderness of the lateral pterygoid muscles, which presented more prevalence in girls. In conclusion, clinical signs and symptoms of TMD can occur in adolescents; however, gender influence was not perceived.O objetivo deste estudo foi verificar a prevalência de sinais e sintomas de disfunção temporomandibular (DTM em adolescentes e sua relação com o gênero. A amostra foi constituída de 217 voluntários, com idade entre 12 e 18 anos. Os sintomas subjetivos e os sinais clínicos de DTM foram avaliados usando-se, respectivamente, um questionário e o "Craniomandibular Index", o qual possui 2 subescalas: "Dysfunction Index" e "Palpation Index". Os resultados para sensibilidade muscular mostraram grande variabilidade (0,9-32,25%. Com relação à articulação temporomandibular, a sensibilidade à palpação nas regiões superior, dorsal e lateral do côndilo ocorreu, respectivamente, em 10,6%, 10,6% e 7,83% da amostra. A prevalência do ruído articular no movimento de abertura foi de 19,8% e no fechamento, 14,7%. Os sintomas relatados mais

  12. West and East

    Directory of Open Access Journals (Sweden)

    Alexander Rappaport

    2017-12-01

    Full Text Available The topic “West-East” has a clear cultural and historical meaning. Orthodox temples face East. The way from West to East and from East to West is tens of thousands of kilometers long and has a special meaning. It differs from the way from North to South: the horizontal axes connect regions, while the vertical axis (Earth-Sky connects the worlds. The expansion of Eurasian tribes occurred along the East-West axis – the world horizontal way. Today the cultural memory of people in the East and West finds itself in the theatre of new dramas of existence and new forces. With the advances in electronic technologies, the world movements seem to have sunk in the depth of the chthonian past to come up anew to the surface of fantastic speeds and momentary connections. A new type of planetary landscape-space relation appears, giving no place for West and East.

  13. O uso da plataforma de desenvolvimento OMAP-L137/TMS320C6747, de processamento digital de sinais, na implementação de filtros digitais

    Directory of Open Access Journals (Sweden)

    Thamyres T. C. Palitó

    2014-12-01

    Full Text Available Nas últimas décadas a tecnologia tem evoluído rapidamente com a grande demanda por equipamentos paraprocessamento digital de sinais. O Digital Signal Processor (DSP é um microcontrolador especializado, comalto poder de processamento, utilizado normalmente no tratamento de sinais de áudio e vídeo. Neste trabalho,é apresentada uma ferramenta didática para a implementação de filtros digitais Finite Impulse Response (FIRno módulo de avaliação OMAP-L137/TMS320C6747. Para o projeto do filtro é utilizada a interface gráficafdatool do MATLAB e para a implementação o software Code Composer Studio v3.3. Um filtro passa-baixas foiimplementado e testado no processo de filtragem de um sinal de voz.

  14. Inference of a random potential from random walk realizations: Formalism and application to the one-dimensional Sinai model with a drift

    International Nuclear Information System (INIS)

    Cocco, S; Monasson, R

    2009-01-01

    We consider the Sinai model, in which a random walker moves in a random quenched potential V, and ask the following questions: 1. how can the quenched potential V be inferred from the observations of one or more realizations of the random motion? 2. how many observations (walks) are required to make a reliable inference, that is, to be able to distinguish between two similar but distinct potentials, V 1 and V 2 ? We show how question 1 can be easily solved within the Bayesian framework. In addition, we show that the answer to question 2 is, in general, intimately connected to the calculation of the survival probability of a fictitious walker in a potential W defined from V 1 and V 2 , with partial absorption at sites where V 1 and V 2 do not coincide. For the one-dimensional Sinai model, this survival probability can be analytically calculated, in excellent agreement with numerical simulations.

  15. West European magnetic confinement fusion research

    International Nuclear Information System (INIS)

    McKenney, B.L.; McGrain, M.; Hogan, J.T.; Porkolab, M.; Thomassen, K.I.

    1990-01-01

    This report presents a technical assessment and review of the West European program in magnetic confinement fusion by a panel of US scientists and engineers active in fusion research. Findings are based on the scientific and technical literature, on laboratory reports and preprints, and on the personal experiences and collaborations of the panel members. Concerned primarily with developments during the past 10 years, from 1979 to 1989, the report assesses West European fusion research in seven technical areas: tokamak experiments; magnetic confinement technology and engineering; fusion nuclear technology; alternate concepts; theory; fusion computations; and program organization. The main conclusion emerging from the analysis is that West European fusion research has attained a position of leadership in the international fusion program. This distinction reflects in large measure the remarkable achievements of the Joint European Torus (JET). However, West European fusion prominence extends beyond tokamak experimental physics: the program has demonstrated a breadth of skill in fusion science and technology that is not excelled in the international effort. It is expected that the West European primacy in central areas of confinement physics will be maintained or even increased during the early 1990s. The program's maturity and commitment kindle expectations of dramatic West European advances toward the fusion energy goal. For example, achievement of fusion breakeven is expected first in JET, before 1995

  16. West Nile virus: North American experience

    Science.gov (United States)

    Hofmeister, Erik K.

    2011-01-01

    West Nile virus, a mosquito-vectored flavivirus of the Japanese encephalitis serogroup, was first detected in North America following an epizootic in the New York City area in 1999. In the intervening 11 years since the arrival of the virus in North America, it has crossed the contiguous USA, entered the Canadian provinces bordering the USA, and has been reported in the Caribbean islands, Mexico, Central America and, more recently, South America. West Nile virus has been reported in over 300 species of birds in the USA and has caused the deaths of thousands of birds, local population declines of some avian species, the clinical illness and deaths of thousands of domestic horses, and the clinical disease in over 30 000 Americans and the deaths of over 1000. Prior to the emergence of West Nile virus in North America, St. Louis encephalitis virus and Dengue virus were the only other known mosquito-transmitted flaviviruses in North America capable of causing human disease. This review will discuss the North American experience with mosquito-borne flavivirus prior to the arrival of West Nile virus, the entry and spread of West Nile virus in North America, effects on wild bird populations, genetic changes in the virus, and the current state of West Nile virus transmission.

  17. The provision of modern medical services to a nomadic population: a review of medical services to the Bedouins of southern Sinai during Israeli rule 1967-1982.

    Science.gov (United States)

    Romem, Pnina; Reizer, Haya; Romem, Yitzhak; Shvarts, Shifra

    2002-04-01

    Southern Sinai, a mountainous desolated arid area, is inhabited by Bedouin nomad tribes composed of Arabic-speaking Moslems. Until the Six Day War between Egypt and Israel in 1967, healthcare services in the region were based on traditional medicine performed by the Darvish, a local healer. Over the course of Israeli rule (1967-1982) an elaborate healthcare service was established and maintained, providing modern, up to date, comprehensive medical services that were available to all free of charge.

  18. Effect of mineral constituents in the bioleaching of uranium from uraniferous sedimentary rock samples, Southwestern Sinai, Egypt

    International Nuclear Information System (INIS)

    Amin, Maisa M.; Elaassy, Ibrahim E.; El-Feky, Mohamed G.; Sallam, Abdel Sattar M.; Talaat, Mona S.; Kawady, Nilly A.

    2014-01-01

    Bioleaching, like Biotechnology uses microorganisms to extract metals from their ore materials, whereas microbial activity has an appreciable effect on the dissolution of toxic metals and radionuclides. Bioleaching of uranium was carried out with isolated fungi from uraniferous sedimentary rocks from Southwestern Sinai, Egypt. Eight fungal species were isolated from different grades of uraniferous samples. The bio-dissolution experiments showed that Aspergillus niger and Aspergillus terreus exhibited the highest leaching efficiencies of uranium from the studied samples. Through monitoring the bio-dissolution process, the uranium grade and mineralogic constituents of the ore material proved to play an important role in the bioleaching process. The tested samples asserted that the optimum conditions of uranium leaching are: 7 days incubation time, 3% pulp density, 30 °C incubation temperature and pH 3. Both fungi produced the organic acids, namely; oxalic, acetic, citric, formic, malonic, galic and ascorbic in the culture filtrate, indicating an important role in the bioleaching processes. - Highlights: • Aspergillus niger and Aspergillus terreus are the only isolates achieved highest leaching efficiency of uranium from the studied samples. • Bioleaching process directly related to variations in mineral constituents and uranium grades. • The optimum conditions of uranium bioleaching from its ores, were found to be 7 days, 3% pulp density, pH 3 and 30 °C. • A. niger and A. terreus organic acids play an important and effective role for uranium leaching process

  19. A África carioca em lentes européias: corpos, sinais e expressões

    Directory of Open Access Journals (Sweden)

    Eneida Maria Mercadante Sela

    2006-12-01

    Full Text Available A proposta deste artigo é examinar as maneiras pelas quais alguns viajantes europeus que estiveram no Rio de Janeiro durante a primeira metade do século XIX diferenciaram os africanos na experiência da escravidão, tratando de um viés temático específico: os registros produzidos pela literatura de viagem oitocentista a respeito de suas belezas físicas, sinais corporais e expressões de cantos e danças. A convergência temática e valorativa desses relatos permite-nos observar a reiteração de certas tópicas que cristalizaram os significados mais comuns atribuídos pelos olhares estrangeiros aos africanismos com que depararam na cidade que continha, à época, a maior população escrava das Américas.The proposal of this article is to investigate the ways some European travellers, who have came to the city of Rio de Janeiro during the first half of the 19th century, registered Africans in the slavery experience. Foreigners who visited Brazilian Court until 1850 faced the biggest African slave population of the Americas, and the set of their literature, which describes such cultural and social counterpose, reveals conceptual reiterations of a whole lot of physical and behavioural characteristics given to Africans in captivity.

  20. Hydrologic analysis of the challenges facing water resources and sustainable development of Wadi Feiran basin, southern Sinai, Egypt

    Science.gov (United States)

    Ahmed, Ayman A.; Diab, Maghawri S.

    2018-04-01

    Wadi Feiran basin is one of the most promising areas in southern Sinai (Egypt) for establishing new communities and for growth in agriculture, tourism, and industry. The present challenges against development include water runoff hazards (flash flooding), the increasing water demand, and water scarcity and contamination. These challenges could be mitigated by efficient use of runoff and rainwater through appropriate management, thereby promoting sustainable development. Strategies include the mitigation of runoff hazards and promoting the natural and artificial recharge of aquifers. This study uses a watershed modeling system, geographic information system, and classification scheme to predict the effects of various mitigation options on the basin's water resources. Rainwater-harvesting techniques could save more than 77% of the basin's runoff (by volume), which could be used for storage and aquifer recharge. A guide map is provided that shows possible locations for the proposed mitigation options in the study basin. Appropriate measures should be undertaken urgently: mitigation of groundwater contamination (including effective sewage effluent management); regular monitoring of the municipal, industrial and agricultural processes that release contaminants; rationalization and regulation of the application of agro-chemicals to farmland; and regular monitoring of contaminants in groundwater. Stringent regulations should be implemented to prevent wastewater disposal to the aquifers in the study area.

  1. Effect of mineral constituents in the bioleaching of uranium from uraniferous sedimentary rock samples, Southwestern Sinai, Egypt.

    Science.gov (United States)

    Amin, Maisa M; Elaassy, Ibrahim E; El-Feky, Mohamed G; Sallam, Abdel Sattar M; Talaat, Mona S; Kawady, Nilly A

    2014-08-01

    Bioleaching, like Biotechnology uses microorganisms to extract metals from their ore materials, whereas microbial activity has an appreciable effect on the dissolution of toxic metals and radionuclides. Bioleaching of uranium was carried out with isolated fungi from uraniferous sedimentary rocks from Southwestern Sinai, Egypt. Eight fungal species were isolated from different grades of uraniferous samples. The bio-dissolution experiments showed that Aspergillus niger and Aspergillus terreus exhibited the highest leaching efficiencies of uranium from the studied samples. Through monitoring the bio-dissolution process, the uranium grade and mineralogic constituents of the ore material proved to play an important role in the bioleaching process. The tested samples asserted that the optimum conditions of uranium leaching are: 7 days incubation time, 3% pulp density, 30 °C incubation temperature and pH 3. Both fungi produced the organic acids, namely; oxalic, acetic, citric, formic, malonic, galic and ascorbic in the culture filtrate, indicating an important role in the bioleaching processes. Copyright © 2014 Elsevier Ltd. All rights reserved.

  2. Applicability of alkali activated slag-seeded Egyptian Sinai kaolin for the immobilization of 60Co radionuclide

    International Nuclear Information System (INIS)

    El-Naggar, M.R.

    2014-01-01

    The present work was established to determine the applicability of local Egyptian kaolinite and blast furnace slag (BFS) as raw materials toward the synthesis of geopolymers and subsequent immobilization of cobalt-60, which is one of the most abundant radionuclides generated in radioactive waste streams in Egypt. XRF, XRD, FT-IR, and SEM techniques were used to characterize the local raw materials and their corresponding alkali activated products. Metakaolin (MK) was obtained by thermal treatment of Egyptian Sinai kaolin 750 °C/4 h. MK and five different BFS content (5, 10, 30, 50 and 80%) were used to synthesize geopolymeric matrices using an alkaline activator of Si-modulus = 1.35 at solid/liquid ratios of 0.8. Compressive strength tests were performed indicating that 50% BFS addition gave the highest values of compressive strength. The IAEA standard leaching tests of cobalt-60 from the solidified waste matrices were carried out. The effective diffusion coefficients of cobalt-60 radionuclides from the solidified waste matrices were calculated to be in the order of 10 −14 cm 2 /s. Leaching of radionuclides was examined to be controlled by the wash-off mechanism with very acceptable values. These results gave encouragement that the tested Egyptian raw materials can be conveniently applied for the synthesis of geopolymers that can be used as a low-cost and high-efficiency materials for the immobilization of radioactive waste

  3. Soldiers at risk for individual readiness or morale problems during a six-month peacekeeping deployment to the Sinai.

    Science.gov (United States)

    Schumm, W R; Bell, D B

    2000-10-01

    Longitudinal data were examined to predict soldiers' morale, satisfaction with Army life, and the effects of family issues on performance of duties during an overseas deployment (Sinai peacekeeping force during the spring of 1995). Few variables were significant predictors of the outcome measures; however, rank, leaders' support for families, prior satisfaction with Army life and with information released about the deployment appeared to predict better outcomes during the deployment. Rank and leaders' support for families appeared to be more important for married soldiers while satisfaction with predeployment information seemed to be more important for single soldiers. Those who were worried about the effects of the deployment on their families also tended to report interference with their duty performance because of family concerns, but that effect was offset by perceived leaders' concern for families. In conclusion, it appears to the authors that the pre-existing factors studied had much less to do with deployment outcomes than did leadership success before and during the deployment. That's good news for Army leaders about their power to have a positive effect on soldiers' morale during overseas deployments but may be bad news for anyone hoping to find a "magic bullet" for pre-identification of soldiers most likely to retain high morale, regardless of their leadership's competence during an overseas deployment.

  4. O tradutor/intérprete de língua de sinais: um mediador de fronteiras culturais

    Directory of Open Access Journals (Sweden)

    Izaulita César Moura

    2017-01-01

    Full Text Available Discute-se a importância do tradutor/intérprete de Língua de Sinais enquanto um mediador de fronteiras entre dois mundos culturais. Busca-se dar visibilidade à complexidade da tarefa do intérprete não apenas no campo da linguagem, mas também na área da subjetividade, levando em conta contribuições da Psicanálise. Partiu-se de uma pesquisa qualitativa realizada no Instituto Nacional de Educação de Surdos que abordou o tema da linguagem e subjetividade com alunos com surdez profunda. Concluiu-se que o papel social e subjetivo do intérprete de Libras precisa ser mais bem compreendido. O desafio não é apenas traduzir e informar, mas saber guardar os próprios pensamentos e sentimentos, para ser porta voz da fala, da expressão e da emoção de outra pessoa, de um sujeito que se manifesta em total alteridade. Assim, facetas menos conhecidas do papel intersubjetivo do tradutor/intérprete são apontadas.

  5. Tectonic evolution of the Pan-African arc assemblage in Southern Sinai An example from the Sa'al-Zaghra belt

    Science.gov (United States)

    Hassan, M.; Fowler, A.; Hassan, I.; Abu-Alam, T.; Stüwe, K.

    2012-04-01

    The southern Sinai basement is part of the broader Neoproterozoic Arabian-Nubian Shield, which occupies parts of northeastern Africa and the Arabian Peninsula. The Sinai exposures of the shield are uniquely located as they form a bridge between the two halves of the shield that are elsewhere separated by the Red Sea rift. For shield terrain fragments are exposed in Sinai: the Feiran-Solaf, Kid, Taba-Elat and Sa'al-Zaghra metamorphic belts. Of these, the Sa'al Zaghra terrain has received the least attention. The four terrains are separated from each other by vast areas of syn- and post tectonic granitoids that complicate the correlation and have led to numerous controversies with respect to their interpretation. In this project structural, petrological and age dating will be carried out to clarify the evolution of the Sa'al Zaghra terrain in order to establish the relationship between it and the other terrains. Preliminary work already undertaken during this research suggests that the Sa'al-Zaghra and Kid terrains have much in common with respect to their lithological assemblages, as well as their structural and metamorphic histories. The same may be said of the Feiran-Solaf and Taba-Elat terrains. Juxtaposition of these paired terrains presents an enigma in that the Sa'al-Zaghra and Kid terrains appear to separate the Feiran-Solaf and Taba-Elat terrains from each other. There are possibilities of ancient transform systems that may explain this configuration.

  6. Avaliação da intensidade de dor e sinais vitais no pós-operatório de cirurgia cardíaca

    Directory of Open Access Journals (Sweden)

    Adriana de Fátima Alencar Miranda

    2011-04-01

    Full Text Available O objetivo do estudo é analisar as alterações nos sinais vitais de pacientes em pós-operatório de cirurgias cardíacas, mediante intensidade de dor referida. Trata-se de estudo descritivo-exploratório, que utilizou o método de análise quantitativa na investigação de 38 pacientes submetidos à primeira renovação de curativos. A análise dos dados, mensurados antes e após a realização do procedimento de enfermagem, indicaram que a manifestação da dor ocorreu em diferentes classificações. As principais alterações nos sinais vitais ocorreram na pressão arterial. Concluiu-se que a intensidade dolorosa mantém relações com os resultados dos sinais vitais e o cuidado prestado é imprescindível ao restabelecimento do estado de saúde do paciente no pós-operatório.

  7. Magnetic anomalies in Central Bengal fan

    Digital Repository Service at National Institute of Oceanography (India)

    Rao, T.C.S.; Lakshminarayana, S.; Sarma, K.V.L.N.S.

    Total magnetic field anomalies recorded over the Central Bengal Fan are analysed and the depths to the magnetic basement are computed using the analytical signal and the Werner deconvolution methods. To the west and east of 85 degrees E...

  8. Sistema de informação dos núcleos de atenção integral na saúde da família - SINAI Information system of integral assistance nuclei in family health (SINAI

    Directory of Open Access Journals (Sweden)

    Mirella Maria Soares Véras

    2007-04-01

    Full Text Available A cidade de Sobral, Ceará, Brasil, inseriu no ano de 2000 equipes multiprofisionais no Programa Saúde da Família (PSF. Essas equipes tinham o objetivo de potencializar as ações do PSF e de garantir a integralidade da atenção na promoção, prevenção, assistência e reabilitação. Um das dificuldades encontradas no processo de trabalho dessas categorias foi a ausência de um sistema de informação que contemplasse o registro de atividades executadas pelas equipes. Entendendo que a informação representava um espaço importante para o desenvolvimento e a produção de saúde, um grupo foi formado para elaborar um instrumento e software para o sistema de informação. Esse grupo era composto de profissionais da Secretaria Municipal de Saúde, do setor de informática do município e residentes da Escola de Saúde da Família. O instrumento criado continha os perfis da população assistida, o registro de atividades e procedimentos realizados e os agravos de notificação que estavam sendo definidos. Depois da criação do instrumento, foi desenvolvido o software em Sistema Operacional Linux, linguagem de programação PHP, banco de dados POSTGRESQL e foi acomodado em um servidor web Apache. O sistema foi chamado, em princípio, de SINAI e contemplava dados importantes para o desenvolvimento de indicadores para vários profissionais, garantindo a produção de informações epidemiológicas necessárias para o processo de controle, a avaliação e o planejamento de ações das equipes.The city of Sobral, state of Ceará, Brazil, introduced, in the year 2000, multi-professional teams in the Family Health Program PSF. These teams aimed to potentialize the actions of PSF and to guarantee the integrality of care in promotion, prevention, assistance and rehabilitation. One of the difficulties encountered in the work process of these categories was the absence of an information system that registered the activities executed by the teams

  9. Gender Inequality and Contradictions In West African Development ...

    African Journals Online (AJOL)

    The convergence and almost absolute uniformity among communities in West Africa on the issue of gender inequity remains one of the central challenges of globalisation. The centrality of this phenomenon is given that women constitute almost 50% of the population in most of these societies. Hence, any policy or ...

  10. Caracterização de amostras do vírus da raiva, isoladas nas regiões Norte e Centro-Oeste do Brasil, com anticorpos monoclonais antilissavírus Antigenic characterization of Brazilian rabies virus isolate North and Central West regions of Brazil with anti-lyssavirus monoclonal antibodies

    Directory of Open Access Journals (Sweden)

    H.B.C.R. Batista

    2008-02-01

    Full Text Available The occurrence of rabies virus antigenic variants in North and Central West regions of Brazil was studied using 61 rabies viruses isolated from different species: 30 from domestic dogs, 20 from cattle, four from horses, two from cats, one from a human and four from unidentified species. The isolates were submitted to antigenic analyses by indirect immunofluorescence with a panel of 12 monoclonal antibodies (Mabs to lyssavirus antigens. Antigenic analyses revealed consistent differences between isolates whose natural hosts were dogs and those of haematophagous bats, often isolated from cattle. Three out of four isolates from horses and one from a domestic dog showed patterns of reactivity found only in viruses of insectivorous bats, indicating that non-haematophagous bats do play a unique role in the transmission of the virus to other species.

  11. Genesis and petrology of Late Neoproterozoic pegmatites and aplites associated with the Taba metamorphic complex in southern Sinai, Egypt

    Energy Technology Data Exchange (ETDEWEB)

    Abdelfadil, K.M.; Asimow, P.D.; Azer, M.K.; Gahlan, H.A.

    2016-07-01

    We present new field, petrographical, mineralogical and geochemical data from late Neoproterozoic pegmatites and aplites in southern Sinai, Egypt, at the northernmost limit of the Arabian-Nubian Shield. The pegmatites cross-cut host rocks in the Taba Metamorphic Complex (TMC) with sharp contacts and are divided into massive and zoned pegmatites. Massive pegmatites are the most common and form veins, dykes and masses of variable dimensions; strikes range mainly from E-W through NW-SE to N-S. Mineralogically, the massive pegmatites are divided into K-feldspar-rich and albite-rich groups. Zoned pegmatites occur as lenses of variable dimensions, featuring a quartz core, an intermediate zone rich in K-feldspars and an outer finer-grained zone rich in albite. All compositions are highly evolved and display geochemical characteristics of post-collisional A-type granites: high SiO2, Na2O+K2O, FeO*/MgO, Ga/Al, Zr, Nb, Ga and Y alongside low CaO, MgO, Ba and Sr. They are rich in Rare Earth Elements (REE) and have extreme negative Eu anomalies (Eu/Eu*= 0.03–0.09). A genetic linkage between the pegmatites, aplites and alkali granite is confirmed by their common mild alkaline affinity and many other geochemical characteristics. These pegmatites and aplites represent the last small fraction of liquid remaining after extensive crystallization of granitic magma, injected along the foliation and into fractures of the host metamorphic rocks. The extensional tectonic regime and shallow depth of emplacement are consistent with a post-collisional environment. (Author)

  12. West Greenlandic Eskimo

    DEFF Research Database (Denmark)

    Trondhjem, Naja Blytmann; Fortescue, Michael David

    West Greenlandic Eskimo. The current situation of the West Greenlandic language as principal means of communication among the majority Greenlandic population will be presented with special emphasis on the northwest hunting district of Upernavik, where traditional marine mammal hunting is still...... the principal economic activity. Research projects and language initiatives currently in progress within Greenland will be touched upon, as will the possibilities of communication with North American Inuit. West Greenlandic is unique among the native languages of the North American Arctic and Sub...

  13. Evaluation of electrophoretic profile and albumin quota in the cerebrospinal fluid of dogs with distemper showing or not neurvous signs Avaliação do perfil eletroforético e da cota de albumina do líquido cerebrospinal de cães acometidos pela cinomose apresentando ou não sinais neurológicos

    Directory of Open Access Journals (Sweden)

    F.G.V. Gama

    2007-02-01

    Full Text Available The electrophoretic profile of cerebrospinal fluid proteins and albumin quota was studied in healthy dogs and dogs with distemper in either nervous or non-nervous phases. Cerebrospinal fluid (CSF samples from 30 dogs were collected by puncture of the cisterna magna. The total protein content, the albumin quota, and the electrophoretic fraction of CSF proteins in agarose gel plates were evaluated. Results were similar in healthy dogs and dogs with distemper and no nervous signs, but were significantly increased in the group of dogs with distemper showing nervous signs. The study of CSF protein profile proved useful and contributed significantly on the detection of central nervous system disorders and damages to the blood-brain barrier during the nervous phase of distemper.Estudaram-se o perfil eletroforético das proteínas liquóricas e a cota de albumina em cães sem e com cinomose na fase neurológica e não-neurológica. A punção da cisterna magna para a obtenção de amostras de liquor realizou-se em 30 cães. Analisaram-se teores de proteínas totais, cota de albumina e fracionamento eletroforético das proteínas liquóricas em gel de agarose. Os resultados foram semelhantes nos cães normais e nos cães com cinomose sem sinais neurológicos e significativamente elevados no grupo de cães com cinomose apresentando sinais neurológicos. O estudo do quadro protéico do líquido cérebroespinhal foi útil e contribuiu significativamente na detecção de lesões ao sistema nervoso central e de danos à barreira hematoencefálica durante a fase neurológica da cinomose.

  14. Food Insecurity, Nutritional Status, and Factors Associated with Malnutrition among People Living with HIV/AIDS Attending Antiretroviral Therapy at Public Health Facilities in West Shewa Zone, Central Ethiopia.

    Science.gov (United States)

    Gebremichael, Delelegn Yilma; Hadush, Kokeb Tesfamariam; Kebede, Ermiyas Mulu; Zegeye, Robel Tezera

    2018-01-01

    In resource limited settings, HIV/AIDS patients lack access to sufficient nutritious foods, which poses challenges to the success of antiretroviral therapy. HIV/AIDS and malnutrition are still major public health problems in Ethiopia. Though measuring nutritional status is an essential part of ART program, little evidence exists on food insecurity and nutritional status of HIV/AIDS patients in Ethiopia. Hence, the study aimed to determine food insecurity and nutritional status and contextual determinants of malnutrition among HIV/AIDS patients in West Shewa Zone, Ethiopia. Institution-based cross-sectional study was conducted among HIV/ADIS patients who have been attending antiretroviral therapy at public health facilities in West Shewa Zone from April to May 2016, Ethiopia. The sample size was 512 and study participants were selected from each facilities using systematic random sampling method. Data were collected using pretested questionnaire by trained data collectors. Data were entered to Epi-Info 3.5.1 for Windows and analyzed using SPSS version 22. Logistic regression analyses were conducted to determine independent factors associated with malnutrition. Prevalence of malnutrition was 23.6% (95% CI: 19.7%-27.4%) and prevalence of household food insecurity was 35.2% (95% CI: 31.1%-39.0%). Factors significantly associated with malnutrition among HIV/AIDS patients were unemployment (AOR = 3.4; 95% CI: 1.8-5.3), WHO clinical stages III/IV (AOR = 3.3; 95% CI: 1.8-6.5), CD4 count less than 350 cells/ μ l (AOR = 2.0; 95% CI: 1.8-4.2), tuberculosis (AOR = 2.3; 95% CI: 1.3-4.9), duration on antiretroviral therapy (AOR = 1.8; 95% CI: 1.2-2.9), and household food insecurity (AOR = 5.3; 95% CI: 2.5-8.3). The findings revealed high prevalence of malnutrition and household food insecurity among HIV/AIDS patients attended ART. The negative interactive effects of undernutrition, inadequate food consumption, and HIV infection demand effective cross-sectorial integrated

  15. Food Insecurity, Nutritional Status, and Factors Associated with Malnutrition among People Living with HIV/AIDS Attending Antiretroviral Therapy at Public Health Facilities in West Shewa Zone, Central Ethiopia

    Directory of Open Access Journals (Sweden)

    Delelegn Yilma Gebremichael

    2018-01-01

    Full Text Available Background. In resource limited settings, HIV/AIDS patients lack access to sufficient nutritious foods, which poses challenges to the success of antiretroviral therapy. HIV/AIDS and malnutrition are still major public health problems in Ethiopia. Though measuring nutritional status is an essential part of ART program, little evidence exists on food insecurity and nutritional status of HIV/AIDS patients in Ethiopia. Hence, the study aimed to determine food insecurity and nutritional status and contextual determinants of malnutrition among HIV/AIDS patients in West Shewa Zone, Ethiopia. Methods. Institution-based cross-sectional study was conducted among HIV/ADIS patients who have been attending antiretroviral therapy at public health facilities in West Shewa Zone from April to May 2016, Ethiopia. The sample size was 512 and study participants were selected from each facilities using systematic random sampling method. Data were collected using pretested questionnaire by trained data collectors. Data were entered to Epi-Info 3.5.1 for Windows and analyzed using SPSS version 22. Logistic regression analyses were conducted to determine independent factors associated with malnutrition. Results. Prevalence of malnutrition was 23.6% (95% CI: 19.7%–27.4% and prevalence of household food insecurity was 35.2% (95% CI: 31.1%–39.0%. Factors significantly associated with malnutrition among HIV/AIDS patients were unemployment (AOR = 3.4; 95% CI: 1.8–5.3, WHO clinical stages III/IV (AOR = 3.3; 95% CI: 1.8–6.5, CD4 count less than 350 cells/μl (AOR = 2.0; 95% CI: 1.8–4.2, tuberculosis (AOR = 2.3; 95% CI: 1.3–4.9, duration on antiretroviral therapy (AOR = 1.8; 95% CI: 1.2–2.9, and household food insecurity (AOR = 5.3; 95% CI: 2.5–8.3. Conclusions. The findings revealed high prevalence of malnutrition and household food insecurity among HIV/AIDS patients attended ART. The negative interactive effects of undernutrition, inadequate food

  16. US west coast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Aerial surveys are conducted along the US west coast to determine distribution and abundance of endangered leatherback turtles (Dermochelys coriacea), loggerhead...

  17. Avaliação de sinais e sintomas da disfunção temporomandibular e sua relação com a postura cervical

    OpenAIRE

    Viana, Maíra de Oliveira; Lima, Ellis Isadora Castello Branco Mourão Ferreira; Menezes, José Nilson Rodrigues de; Olegario, Natália Bitar da Cunha

    2015-01-01

    Introdução As disfunções temporomandibulares (DTM) podem acarretar alterações gerais nos movimentos mandibulares devido à modificação nas condições musculares e articulares. Objetivo Avaliar os sinais e sintomas da disfunção temporomandibular e sua relação com a postura cervical. Material e método Estudo transversal e descritivo, com abordagem quantitativa, realizado na Universidade de Fortaleza, de agosto de 2011 a abril de 2012, em que 23 participantes com disfunção temporomandibular respon...

  18. Lessons denied: a history of therapeutic response to combat stress reaction during Israel's War of Independence (1948), the Sinai Campaign (1956) and the Six Day War (1967)

    Science.gov (United States)

    Witztum, E; Levy, A; Solomon, Z

    1996-01-01

    The current article examines the history of therapeutic response in the Israel Defense Forces toward combat stress reaction during two decades, and in the course of three wars: the 1948 War of Independence, the 1956 Sinai Campaign, and the 1967 Six Day War. Three independent sources were used: recorded debriefing materials; interviews conducted with therapists, commanders and military historians; and professional literature on the wars in Hebrew and other languages. The collected material is described and issues of attitudes, treatment approaches and preparedness are discussed.

  19. Amplificador digital : projeto de um circuito integrado CMOS para condicionamento de sinais segundo a tecnica de quantização

    OpenAIRE

    Ricardo Maltione

    1994-01-01

    Resumo: O AMPLIFICADOR DIGITAL é um amplificador de tensões baseado na técnica de QUANTIZAÇÃO, que consiste essenciahnente de uma forma de processamento em amplitude, de sinais discretizados no tempo, baseado na operação programada de acumuladores analógicos. Na implementação clássica de amplificadores, utiliza-se comumente um amplificador operacional, em uma estrutura realimentada, onde o ganho é definido pela razão de dois resistores. Uma outra técnica utiliza capacitores chaveados, onde o...

  20. West German Study Group Phase III PlanB Trial: First Prospective Outcome Data for the 21-Gene Recurrence Score Assay and Concordance of Prognostic Markers by Central and Local Pathology Assessment.

    Science.gov (United States)

    Gluz, Oleg; Nitz, Ulrike A; Christgen, Matthias; Kates, Ronald E; Shak, Steven; Clemens, Michael; Kraemer, Stefan; Aktas, Bahriye; Kuemmel, Sherko; Reimer, Toralf; Kusche, Manfred; Heyl, Volker; Lorenz-Salehi, Fatemeh; Just, Marianne; Hofmann, Daniel; Degenhardt, Tom; Liedtke, Cornelia; Svedman, Christer; Wuerstlein, Rachel; Kreipe, Hans H; Harbeck, Nadia

    2016-07-10

    The 21-gene Recurrence Score (RS) assay is a validated prognostic/predictive tool in early hormone receptor-positive breast cancer (BC); however, only a few prospective outcome results have been available so far. In the phase III PlanB trial, RS was prospectively used to define a subset of patients who received only endocrine therapy. We present 3-year outcome data and concordance analysis (among biomarkers/RS). Central tumor bank was established prospectively from PlanB (intermediate and high-risk, locally human epidermal growth factor receptor 2-negative BC). After an early amendment, HR-positive, pN0-1 patients with RS ≤ 11 were recommended to omit chemotherapy. From 2009 to 2011, PlanB enrolled 3,198 patients with a median age of 56 years; 41.1% had node-positive and 32.5% grade 3 disease. In 348 patients (15.3%), chemotherapy was omitted based on RS ≤ 11. After 35 months median follow-up, 3-year disease-free survival in patients with RS ≤ 11 and endocrine therapy alone was 98% versus 92% and 98% in RS > 25 and RS 12 to 25 in chemotherapy-treated patients, respectively. Nodal status, central and local grade, the Ki-67 protein encoded by the MKI67 gene, estrogen receptor, progesterone receptor, tumor size, and RS were univariate prognostic factors for disease-free survival; only nodal status, both central and local grade, and RS were independent multivariate factors. Histologic grade was discordant between central and local laboratories in 44%. RS was positively but moderately correlated with the Ki-67 protein encoded by the MKI67 gene and grade and negatively correlated with progesterone receptor and estrogen receptor. In this prospective trial, patients with enhanced clinical risk and omitted chemotherapy on the basis of RS ≤ 11 had excellent 3-year survival. The substantial discordance observed between traditional prognostic markers and RS emphasizes the need for standardized assessment and supports the potential integration of standardized, well

  1. Textural and Compositional Characterization of Wadi Feiran Deposits, Sinai Peninsula, Egypt, Using Radarsat-1, PALSAR, SRTM and ETM+ Data

    Directory of Open Access Journals (Sweden)

    Ahmed Gaber

    2009-12-01

    Full Text Available The present work aims at identifying favorable locations for groundwater resources harvesting and extraction along the Wadi Feiran basin, SW Sinai Peninsula, Egypt, in an effort to facilitate new development projects in this area. Landsat ETM+, Radarsat-1 and PALSAR images of Wadi Feiran basin were used in this work to perform multisource data fusion and texture analysis, in order to classify the wadi deposits based on grain size distribution and predominant rock composition as this information may lead to the location of new groundwater resources. An unsupervised classification was first performed on two sets of fused images (i.e., ETM+/Radarsat-1 and ETM+/PALSAR resulting in five classes (hybrid classes describing the main alluvial sediments in the wadi system. Some variations in the spatial distribution of individual classes were observed, due to the different spectral and spatial resolutions of Radarsat-1 (C-band, 12.5 m and PALSAR (L-band, 6.25 m data. Alluvial deposits are mixtures of parent rocks located further upstream often at a great distance. In order to classify the alluvial deposits in terms of individual rock types (endmembers, a spectral linear unmixing of the optical ETM+ image was performed. Subsequently, each class of the fused (hybrid images was correlated with (1 individual rock type fractions (endmembers obtained from spectrally unmixing the ETM+ image, (2 the geocoded and calibrated radar images (Radarsat-1 and PALSAR and, (3 the slope map generated from the SRTM data. The goal was to determine predominant rock composition, mean backscatter and slope values for each of the five hybrid classes. Backscatter coefficient values extracted from both radar data (C- and L-band were correlated and checked in the field, confirming that both wavelengths produced more or less similar textural classes that correspond to specific grain or fragment sizes of alluvial deposits. However, comparison of the spatial distribution of matching

  2. digital de sinais

    Directory of Open Access Journals (Sweden)

    Carlos Antonio Berto

    2006-01-01

    Full Text Available O gás natural possui alguns contaminantes que, além de serem corrosivos, comprometem a qualidade para o consumo. Dessa forma, a condensação de água residual presente no gás pode iniciar um processo corrosivo localizado, que acarreta prejuízo à estrutura dos gasodutos. Devido à grande extensão dos dutos, os corrosivos comprometem a qualidade do gás e causam grandes transtornos de ordem operacional. Para avaliar a redução da espessura da parede metálica do duto, proveniente de efeitos corrosivos, e identificar fissuras e outras não-conformidades, é fundamental que seja feito o monitoramento contínuo e que se utilizem técnicas e métodos de manutenção preventiva. Atualmente, as técnicas adotadas para tal avaliação consistem na inclusão de um corpo de prova, conhecido como PIG (pipeline inspection gauge, com varredura por meio de ultra-som e termografia, além de levantamentos de campo especiais realizados sobre a superfície do solo. Visando a otimizar o processo de detecção, com vistas à redução de custos, o monitoramento da região interna dos dutos é realizado por um elemento autônomo provido de câmeras com infravermelho. As câmeras fornecem imagens, que são processadas digitalmente e gravadas em uma memória não-volátil. Um software desenvolvido para tal finalidade é utilizado na verificação das imagens e, ao mesmo tempo, na identificação das não-conformidades presentes e na orientação do processo de manutenção.

  3. Islam and the West

    Directory of Open Access Journals (Sweden)

    Mohd. Kamal Hassan

    1997-06-01

    Full Text Available The scientific and technological developments during the 18th and' the 19th centuries ensured material progress of the West, as well as emergence of the West as the dominating power which colonized the rest of the world. During the post-colonial phase, Islam emerged as a revitalized sociopolitical force. This has been mistaken as a threat by the West, and Islam has been portrayed as the "new enemy after the demise of communism. This is partly an effort to establish a Western identity, which is disintegrating due to lack of a challenge; and partly a reflection of the failure of Muslims to realize the social and ethical ideals of Islam.

  4. Intérprete surdo de língua de sinais brasileira: o novo campo de tradução / interpretação cultural e seu desafio

    Directory of Open Access Journals (Sweden)

    Ana Regina e Souza Campello

    2014-07-01

      Esse artigo é o resultado da pesquisa que trata da nova modalidade de tradução/interpretação de línguas de sinais dos intérpretes Surdos, observando a norma surda (STONE, 2009 apud SOUZA, 2010. Recentemente surgiu esse novo campo de tradução no contexto educacional do ensino a distância: o da tradução e interpretação do ator/tradutor e finalmente e intérprete de uma língua de sinais para outra língua de sinais (SEGALA, 2010; SOUZA, 2010. Estas atividades de tradução e interpretação têm sido desempenhadas por Surdos bilíngues intermodais. Exatamente por representar um novo campo de estudo, este artigo apresenta a sua constituição.

  5. Environmental isotopes and hydrochemical study of groundwater in the north eastern portions of the delta of wadi El-Arish, Sinai, Egypt

    International Nuclear Information System (INIS)

    Nada, A.; Aly, A.I.M.; Awad, M.; El-Behery, M.A.; Hamza, M.S.

    1991-01-01

    An environmental isotopes and hydrochemical study was conducted on the underground water bearing strata in the northern part of Wadi El-Arish area, sinai. Wadi El-Arish area represents one of the most important areas for future agricultural expansion in the sinai peninsula. The purpose of the study is to determine whether the groundwater is recently recharged or not in order to adopt an efficient management policy. The hydrochemical results indicate the meteoric origin of the water with some contribution from sea water and old marine water. The tritium data confirm the meteoric origin of the water and indicate the recharge of groundwater in the study area in the last 20 years. The stable environmental isotopic composition of the groundwater (oxygen-18 and deuterium) reflects more or less the isotopic composition of precipitation and flooding within the delta of the wadi to infiltration. There is also a possibility, of contribution from palea-water (depleted in the environmental stable isotopes) in some wells by leaking through faulting in this area.7 fig,2 tab

  6. El-Salam canal is a potential project reusing the Nile Delta drainage water for Sinai desert agriculture: Microbial and chemical water quality

    Directory of Open Access Journals (Sweden)

    Amal A. Othman

    2012-04-01

    Full Text Available More than 12 × 109 m3/year of Nile Delta drainage water is annually discharged into the Mediterranean Sea. El-Salam (peace canal, having a mixture of such drainage water and the Nile water (1:1 ratio, crosses the Suez canal eastward to the deserts of north Sinai. The suitability of the canal water for agriculture is reported here. Representative samples were obtained during two successive years to follow effects of seasonal and spatial distribution, along the first 55 km course in north Sinai, on the water load of total bacteria, bacterial indicators of pollution, and chemical and heavy metals contents. In general, the canal water is acceptable for irrigation, with much concern directed towards the chemical contents of total salts (EC, Na and K, as well as the trace elements Cd and Fe. Extending the canal course further than 30 km significantly lowered the fecal pollution rate to the permissible levels of drinking water. Results strongly emphasize the need for effective pre-treatment of the used drainage water resources prior mixing with the Nile water.

  7. Fraseologismo em língua de sinais e tradução: uma discussão necessária

    Directory of Open Access Journals (Sweden)

    Andréa Michiles Lemos

    Full Text Available O objetivo deste trabalho é investigar as estratégias de interpretação utilizadas no processo tradutório do português para a língua brasileira de sinais (Libras, em interpretações que envolvem Unidades Fraseológicas (UF's utilizadas por políticos em seus discursos. Considerando que as línguas em questão são de modalidades diferentes, a primeira oral-auditiva e a segunda viso-espacial, levantamos as seguintes questões: Como o intérprete de Libras faz para interpretar UF's do português para a Libras? Quais estratégias de interpretação são utilizadas pelos intérpretes de língua de sinais na interpretação de UF's? Para responder a essas questões analisamos vídeos, com interpretações para a Libras, de Sessões Plenárias da Assembleia Legislativa do Estado do Ceará. Nosso trabalho se insere no rol das pesquisas descritivas. A análise do corpus aponta para o uso, preferencialmente, de duas estratégias de interpretação das seis estratégias que classificamos.

  8. Ebola Virus Epidemic in West Africa and Beyond

    Directory of Open Access Journals (Sweden)

    Oscar G Gómez-Duarte

    2014-10-01

    Full Text Available Is there a reason to fear that an Ebola outbreak may strike Latin America? The fear may not be unreasonable taking into account the history of epidemics that have affected the American continent since colonization times in 1492. Old World small pox epidemics spread and killed millions of Native Americans north and south from the equator. Imported West Nile virus infections reported in New York in 1999 dramatically spread East to West of the United States. Most recently, Chikungunya virus arrived to Central America in 2013 and has already infected close to 1 million people in Mexico, Central American countries, Brazil, Colombia, Ecuador, Guyanas, Paraguay, and Venezuela.

  9. Rn-Gas Concentration and Working Level Measurements Using SSNTD in Uranium Exploration Galleries Allouga Mine, Sinai, Egypt

    International Nuclear Information System (INIS)

    Abdel-Monem, A.A.; Hassan, S.F.; Abdel-Kader, F.H.; El-Naggar, A.M.; Essia, H.M.; Abdel-Hafez, A.A.

    2008-01-01

    Measurements of Rn-gas concentrations and Working Level (WL), were carried out in the U-exploration galleries at El- Allouga Mine, Sinai, Egypt by passive techniques (SSNTD) during the four seasons ( Summer, Fall, Winter and Spring) using four different detector types: CR-39, MK, CN-85 and LR-115.Twenty eight (28) stations were chosen for this purpose reflecting different environmental conditions as measurement sites within the galleries. The Rn-gas concentrations , in the summer period ranged from 25.86 to 44.2 pCi/l in the ventilated stations and from 488.98 to 611.16 pCi/l in the non-ventilated stations. In the fall period , the average Rn-gas concentrations in the ventilated stations ranged from 31.61 to 56.36 pCi/l while in the non-ventilated stations from 457.61 to 621.52 pCi/l. In the winter period, the average Rn-gas concentrations in the ventilated stations ranged from 27.59 to 66.45 pCi/l while in the non- ventilated stations from 499.09 to 603.81 pCi/l. In the spring the Rn-gas concentrations ranged from 30.8 to 46.77 pCi/l in the ventilated stations, whereas, in the non-ventilated stations from 404.06 to 445.18 pCi/l. The (WL), in the summer period, ranged from 0.143 to 0.247 in the ventilated sector and from 4.408 to 5.497 in the non-ventilated stations .In fall, the( WL) ranged from 0.166 to 0.295 in the ventilated stations and from 4.123 to 5.624 in the non-ventilated stations. In the winter, the (WL) ranged from 0.105 to 0.37 in the ventilated stations and from 4.138 to 5.26 in the non-ventilated stations. In the spring, the (WL) in the ventilated stations ranged from 0.152 to 0.241 and from 3.696 to 4.087 in the non-ventilated stations. These results indicate that: i)The low measured Rn gas and (WL) values in the ventilated stations reflect the effect of variations in meteorological conditions on (WL) determination where the air flow carries the Rn-gas before it decays and the daughters are plated onto the SSNTD . ii) The larger ranges for Rn

  10. Monitoring and assessment of the groundwater quality in wadi Al-Arish downstream area, North Sinai (Egypt)

    Science.gov (United States)

    Masoud, Alaa A.; Meswara, Ebtesam A.; El Bouraie, Mohamed M.; Kamh, Samir Z.

    2018-04-01

    At a rate of 3 samples a year over 7 years (2008-2014), groundwater quality indicators for 294 samples from 14 groundwater supply wells located on the delta of Wadi Al-Arish, North Sinai (Egypt) were measured and analyzed. The prime objective was to characterize significant and sustained trends in the concentrations of the pH, TDS, Total Alkalinity, Fe2+, Mn2+, Zn2+, NO3-, K+, Pb2+, Al3+, and fecal coliform (FC). Detection and estimation of trends and magnitude were carried out applying the nonparametric Mann-Kendall and Thiel-Sen trend statistical tests, respectively. Geostatistical kriging implemented in ArcGIS 10× was appraised for the spatial distribution of the indicators and their sustained trends. Factor analysis was applied to identify significant sources of quality variation and their loads. Average contents of all indicators exceeded the permissible limits except for Mn. Violation of groundwater quality standards clarified emergence of FC (99.6%), Pb2+ (76.8%), TDS (60.2%), Al3+ (56.6%), NO3- (46.5%), Fe2+ (37.5%), and Mn2+ (14%). Out of the 14 wells, notable upward trends (deterioration) were significant (>95% level) for Mg2+ (100%), TDS (78.5%), NO3- (71.42%), Zn2+ (42.85%), pH (14.28%), K+ (14.28%), and 7.14% for Al3+ and FC. Ranges of attenuation rates (mg/l/year) varied for TDS (52.61-37.59), Mg2+ hardness (3.81-0.14), K+ (0.58-1), pH (0.004-0.027), total alkalinity (-1.89-13.18), NO3- (1.47-0.69), Al3+ (0.002-0.011), Fe2+ (-0.001-0.016), Mn2+ (-0.00004-0.01), Pb2+ (-0.00001-0.002), Zn2+ (0.049-0.018), and FC (5.25-22) in cfu/100 ml. Out of the 14 wells, well no. 9 showed the largest increasing attenuation rates (mg/l/year) that marked NO3- (1.47), K+ (0.58), pH (0.004), and Al3+ (0.002). TDS showed the largest rates of increase of 52.61, and 28.26 for well nos. 5 and 9, respectively. FC showed the highest rate of deterioration of 5.25 in well no. 10. Zn2+ recorded strong deterioration rates of 0.049, and 0.046 for well nos. 12 and 9, respectively

  11. The Pan-African Kekem gabbro-norite (West-Cameroon), U-Pb zircon age, geochemistry and Sr-Nd isotopes: Geodynamical implication for the evolution of the Central African fold belt

    Science.gov (United States)

    Kwékam, Maurice; Affaton, Pascal; Bruguier, Olivier; Liégeois, Jean-Paul; Hartmann, Gerald; Njonfang, Emmanuel

    2013-08-01

    The Kekem shoshonitic gabbro-norite association is part of the high-K calc-alkaline (HKCA) post-collisional magmatism, a major feature of the Pan-African Belt in Cameroon. LA-ICP-MS U-Pb zircon analyses provide an age of 576 ± 4 Ma for the Kekem complex. This age is interpreted as dating the emplacement of the massif during the waning stage of the Pan-African orogeny. The latter is related to dextral movements along the Central Cameroon Shear Zone (CCSZ). The REE patterns display enriched LREE (LaN/YbN = 14.2-23.5) while HREE present a nearly flat profile (DyN/YbN = 1.3-1.7), and the La/Sm and Sm/Yb ratios led to propose that the Kekem gabbro-norites have been derived from the partial melting of a garnet-spinel lherzolite mantle source. The negative Nb-Ta and Ti anomalies and the positive Pb anomalies indicate that this mantle source was modified by contribution of a subduction-related material. The low Ce/Pb (2.6-10.4) and Th/Yb ratios associated to high Ba/La ratios, indicate that source enrichment could be related to slab derived fluids. As a whole, the Kekem geochemical features suggest that primary gabbro-noritic magmas derived from a subduction-modified mantle source (metasomatised lithospheric mantle). Moderately high 86Sr/87Sr initial ratios (0.7068-0.7082), low ɛNd (-5 to -9) and old Nd TDM model ages (1.6-1.8 Ga) are interpreted to result from contamination of Neoproterozoic mantle by the Paleoproterozoic crust. The ca. 576 Ma movements along the CCSZ are related to a Neoproterozoic metacratonization of the northern margin of the Congo craton during the Pan-African orogeny. This metacratonization led to vertical planar lithospheric delamination along lithospheric transcurrent faults, asthenospheric uprise and partial melting of the Paleoproterozoic lithospheric mantle.

  12. Tides in the Mandovi and Zuari estuaries, Goa, west coast of India

    Indian Academy of Sciences (India)

    Indian Ocean, including the Arabian Sea. As a result, the windward side of the Ghats receives high precipitation due to the topographic effect. The rainfall along the central west coast of India is about 250 cm during June–September. The Mandovi and the Zuari are two estuaries that are located along the west coast, in Goa.

  13. Stone sculptures of goddesses on the boats from Goa, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Gaur, A.S.; Kerkar, R.

    Goa situated on the central west coast of India, has served as an overseas trading post since the early historic times. An onshore exploration along the river Mhadei in the north Goa on the west coast of India yielded 13 boat motifs of different...

  14. West Nile virus meningitis in a patient with human immunodeficiency virus type 1 infection

    Directory of Open Access Journals (Sweden)

    D. Pilalas

    2017-09-01

    Full Text Available The emergence of West Nile virus lineage 2 in central Macedonia, Greece, in 2010 resulted in large outbreaks for 5 consecutive years. We report a case of viral meningitis in an individual infected with human immunodeficiency virus type 1, which preceded the recognition of the outbreak and was confirmed retrospectively as West Nile virus neuroinvasive disease.

  15. Dicionarização da língua brasileira de sinais: estudo comparativo iconográfico e lexical

    Directory of Open Access Journals (Sweden)

    Cássia Geciauskas Sofiato

    2014-03-01

    Full Text Available A língua brasileira de sinais (Libras utilizada pela comunidade surda no Brasil é uma língua de modalidade espaço-visual cuja representação gráfica comumente se dá por meio de imagens em dicionários impressos e em meio digital. No Brasil, o primeiro dicionário de língua de sinais de que se tem notícia é a Iconographia dos signaes dos surdos-mudos, que data de 1875. A partir da elaboração dessa obra, outras surgiram e foram se constituindo como materiais de referência para o ensino e o aprendizado da língua em questão. O presente trabalho objetiva, com base em dicionários de Libras que servem de referência, analisar e discutir a constituição histórica do gênero no Brasil a partir da identificação de características e fragilidades em relação à iconografia e à lexicografia de tais obras, fatores que podem interferir no ensino e no aprendizado dos sinais nos cursos de graduação. Do ponto de vista da abordagem do problema, esse estudo é qualitativo e caracteriza-se como documental. Foram selecionados cinco dicionários de Libras, pautando-se no critério da indicação bibliográfica em disciplinas de Libras em cursos de graduação. As categorias estabelecidas para a análise priorizaram a questão da representação das imagens (a iconografia e os aspectos lexicais que as compõem. Por meio do estudo, observou-se que as obras analisadas apresentavam características bastante semelhantes em relação à apresentação, à constituição das imagens e aos aspectos lexicais, desafiando os profissionais que trabalham com esse gênero de ilustração.

  16. Shallow gas charged sediments off the Indian west coast: Genesis and distribution

    Digital Repository Service at National Institute of Oceanography (India)

    Mazumdar, A.; Peketi, A.; Dewangan, P.; Badesab, F.K.; Ramprasad, T; Ramana, M.V.; Patil, D.J.; Dayal, A.M.

    Geophysical and geochemical surveys were carried out off Goa, central west coast of India, to understand the genesis and distribution of shallow gases in marine sediments. Shallow gas charged sediments within the water depths of approx. 15 to 40 m...

  17. Comparison of tropical nematode communities from three harbours, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Nanajkar, M.; Ingole, B.S.

    The three major harbours from the central west coast of India were investigated for their benthic environmental status using nematodes as surrogate community. As these three harbours have shown deteriorated conditions revealed from macrobenthic...

  18. Communication for Influence : Building ICTD Networks in Central ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    This project seeks to help achieve universal affordable access to broadband information and communication technology (ICT) infrastructure in a number of countries on the East and West coasts of Africa. It will do so by building regional ICT for development (ICTD) research and advocacy networks in Central, East and West ...

  19. Ebola in West Africa

    OpenAIRE

    Raka, Lul; Guardo, Monica

    2015-01-01

    Ebola viral disease (EVD) is a severe and life-threatening disease. The current Ebola outbreak in West Africa entered its second year and is unprecedented because it is the largest one in history, involved urban centers and affected a large number of health care workers. It quickly escalated from medical into a humanitarian, social, economic, and security crisis. The primary pillars to prevent EVD are: early diagnosis, isolation of patients, contact tracing and monitoring, safe burials, infec...

  20. West Virginia's Forests 2008

    Science.gov (United States)

    Richard H. Widmann; Gregory W. Cook; Charles J. Barnett; Brett J. Butler; Douglas M. Griffith; Mark A. Hatfield; Cassandra M. Kurtz; Randall S. Morin; W. Keith Moser; Charles H. Perry; Ronald J. Piva; Rachel Riemann; Christopher W. Woodall

    2012-01-01

    The first full annual inventory of West Virginia's forests reports 12.0 million acres of forest land or 78 percent of the State's land area. The area of forest land has changed little since 2000. Of this land, 7.2 million acres (60 percent) are held by family forest owners. The current growing-stock inventory is 25 billion cubic feet--12 percent more than in...

  1. West Virginia Forests 2013

    Science.gov (United States)

    Randall S. Morin; Gregory W. Cook; Charles J. Barnett; Brett J. Butler; Susan J. Crocker; Mark A. Hatfield; Cassandra M. Kurtz; Tonya W. Lister; William G. Luppold; William H. McWilliams; Patrick D. Miles; Mark D. Nelson; Charles H. (Hobie) Perry; Ronald J. Piva; James E. Smith; Jim Westfall; Richard H. Widmann; Christopher W. Woodall

    2016-01-01

    The annual inventory of West Virginia's forests, completed in 2013, covers nearly 12.2 million acres of forest land with an average volume of more than 2,300 cubic feet per acre. This report is based data collected from 2,808 plots located across the State. Forest land is dominated by the oak/hickory forest-type group, which occupies 74 percent of total forest...

  2. The West Heslerton Assessment

    Directory of Open Access Journals (Sweden)

    Dominic Powlesland

    1999-03-01

    Full Text Available The excavation of the Early Anglo-Saxon or Anglian Settlement at West Heslerton, North Yorkshire, between 1986 and 1995, represents one of the largest excavations conducted in Britain in the last two decades. The project, funded by English Heritage, combined the fundamental needs of rescue and research archaeology. The excavation has produced a wealth of new evidence which is forcing us to re-evaluate much that has been said about the formative period of the English nation.

  3. Sistema de aquisição de sinais ECG processado pelo LabVIEW com comunicação wi-fi por meio do módulo ESP8266

    Directory of Open Access Journals (Sweden)

    Anamaria Coutinho Fernandes

    2017-06-01

    Full Text Available O Eletrocardiograma (ECG é um procedimento clínico que mede a atividade elétrica gerada pelo coração, monitorando e diagnosticando as condições cardíacas. O ECG é adquirido, normalmente, por eletrodos em contato com a pele, havendo elementos de condicionamento, processamento e registro do sinal. Com o avanço das áreas de telemedicina e sistemas embarcados, os sistemas de aquisição de sinais ECG tem se miniaturizado, vem sendo propostos para uso em lugares remotos e incorporam técnicas de Internet das Coisas (IoT – Internet of Things habilitando a visualização dos sinais por dispositivos portáteis (smartphones e tablets e pela internet. O sistema de aquisição de sinais ECG aqui proposto é um eletrocardiógrafo que integra elementos de aquisição, condicionamento, processamento e visualização dos sinais ECG usando componentes analógico-digitais e transmitido a frequência cardíaca através da internet usando o módulo WiVi ESP8266. Filtros digitais desenvolvidos com LabVIEW® foram também implementados e visam avaliar a possibilidade do condicionamento analógico, visando a miniaturização.

  4. Preferences for Inequality: East vs. West. Innocenti Working Papers.

    Science.gov (United States)

    Suhrcke, Marc

    Do preferences for income inequality differ systematically between the post-socialist countries of central and eastern Europe and the western established market economies? Analyzing 1999 data from a large international survey to address this question, the paper examines whether attitudes to inequality differ between east and west even after the…

  5. Institutional framework in relation to climate change in West and ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2010-12-16

    Dec 16, 2010 ... This paper maps the institutions working in West and Central Africa on issues related to climate change, vulnerability, and adaptation, and assesses a range of institutional strengths and weaknesses. Representatives of 16 institutions in the sub region were surveyed and interviewed.

  6. Running dry: Where will the West get its water?

    Science.gov (United States)

    J. Thompson

    2007-01-01

    Late summer streamflow in western and central Oregon and northern California is almost exclusively due to immense groundwater storage in the Cascade Range. The volume of water stored in permeable lava flows in the Cascades is seven times that stored as snow. Nonetheless, until recently, virtually all examinations of streamflow trends under future climates in the West...

  7. Moral Self-Cultivation East and West: A Critique

    Science.gov (United States)

    Slote, Michael

    2016-01-01

    Moral Self-Cultivation plays an important, even a central role, in the Confucian philosophical tradition, but philosophers in the West, most notably Aristotle and Kant, also hold that moral self-cultivation or self-shaping is possible and morally imperative. This paper argues that these traditions are psychologically unrealistic in what they say…

  8. Modelling West Nile virus transmission risk in Europe

    NARCIS (Netherlands)

    Vogels, Chantal B.F.; Hartemink, Nienke; Koenraadt, Constantianus J.M.

    2017-01-01

    West Nile virus (WNV) is a mosquito-borne flavivirus which has caused repeated outbreaks in humans in southern and central Europe, but thus far not in northern Europe. The main mosquito vector for WNV, Culex pipiens, consists of two behaviourally distinct biotypes, pipiens and molestus, which can

  9. Enabling affordable access to fibre infrastructure for West and ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    In recent years, tremendous progress has been made in improving access to primary and secondary education in West and Central Africa. At the same time, tertiary education is experiencing increased enrollment and declining investment in infrastructure and human resource development. Consequently, African institutions ...

  10. Leaching Characteristics of Uranium And Copper from Their Mineralization in the Carbonate Rich latosol of Abu-Thor Locality, South Western Sinai, Egypt

    International Nuclear Information System (INIS)

    El-Sheikh, E.M.; Ghazala, R.A.; Abdelwarith, A.; Salem, F.; Ali, S.

    2015-01-01

    The chemical processing of the poly-mineralized carbonate rich latosol ore occurring at Abu-Thor locality of south western Sinai area has been studied for the recovery of uranium and copper metal values. A technological sample assaying 700 ppm U and 9.7% Cu was collected. In the present study, two successive percolation leaching procedures were performed after determination of optimum leaching factors by agitation leaching process. The first was carried out for uranium recovery by using urea as organic leaching agent which was possible to achieve leaching efficiency exceeding 90.3%. This procedure was followed by a second one for copper recovery using ammonium hydroxide solution and ammonium carbonate. The obtained dissolution efficiency was about 93%. The leached metal values namely U and Cu from the studied ore were then extracted as marketable products in the form of ammonium diuranate and copper sulphate, respectively.

  11. Pensamento e linguagem: a língua de sinais na resolução de problemas Language and thought: the signals language in the problem solving

    OpenAIRE

    Maria Helena Fávero; Meireluce Leite Pimenta

    2006-01-01

    Discute-se a relação pensamento/linguagem e a língua de sinais, num estudo sobre a resolução de problemas matemáticos, do qual participaram surdos entre 18 e 30 anos, alunos de séries iniciais da Educação de Jovens e Adultos de escola pública do Distrito Federal (DF), e desenvolvido em três fases: avaliação das competências matemáticas dos sujeitos sobre a lógica do sistema de numeração e sua notação; pesquisa em LIBRAS para as expressões "n a mais que" e "n a menos que" em situação de compar...

  12. Consequências da Aquisição Tardia da Língua Brasileira de Sinais na Compreensão Leitora da Língua Portuguesa, como Segunda Língua, em Sujeitos Surdos

    Directory of Open Access Journals (Sweden)

    Simone Gonçalves de Lima da Silva

    2015-06-01

    Full Text Available Este artigo investigou sobre as consequências da aquisição da língua de sinais tardiamente na compreensão leitora em língua portuguesa como segunda língua por parte de surdos sinalizantes da língua brasileira de sinais. Para visualizar tais consequências, aplicou-se um teste de compreensão de língua de sinais, retirado do material Instrumento de Avaliação da Língua de Sinais (IALS, e um teste de compreensão leitora de língua portuguesa adaptado do Programa Internacional de Avaliação de Estudantes (PISA. Participaram deste estudo cinco surdos de nascença do sexo masculino, com idades de 19 a 41 anos e com diferentes idades de aquisição da língua de sinais. Os resultados apontaram como principal consequência a falta de estratégias para identificar a ideia principal do texto. Demonstraram também que apesar do fator idade de aquisição da língua de sinais interferir bastante na compreensão leitora da língua portuguesa, há outros fatores a considerar como: o contato com outros surdos que sejam fluentes, o apoio e motivação por parte da família no uso das duas línguas (Libras e Língua Portuguesa, a presença da língua de sinais durante a trajetória escolar, bem como metodologias de ensino de língua portuguesa que auxiliem os surdos a descobrir suas próprias estratégias de construção de sentido e ainda os fazerem detectar as diferenças de modalidade das línguas produzidas, bem como as particularidades de cada língua envolvida e ainda, o que é comum a ambas as línguas.

  13. Superposition de la tectonique éburnéenne et panafricaine dans les granitoïdes de la bordure nord du craton ouest africain, boutonniére de Zenaga, Anti-Atlas central, Maroc(Pan-african overprint on Eburnian granitoids at the northern boundary of the West African Craton, Zenaga Inlier, central Anti-Atlas, Morocco)

    Science.gov (United States)

    Ennih, N.; Laduron, D.; Greiling, R. O.; Errami, E.; de Wall, H.; Boutaleb, M.

    2001-05-01

    The Zenaga Inlier shows a comprehensive record of the Eburnian and Pan-African Orogenies. The Eburnian is characterised by high-temperature regional metamorphism and complex magmatism. The early (Azguemerzi) granodiorite has an isotopic mantle signature and was emplaced diapirically during the Eburnian Orogeny causing local thermal metamorphism. The foliation observed in this granitoid is a result of the interference between its primary syn-emplacement foliation and the regional foliation under amphibolite-facies conditions. The northern part of Zenaga has been intruded by the leucocratic granites of Tazenakht. These granites are cut by mylonites and phyllonites, corresponding to the Pan-African shear zones and accompanied with sub-greenschist-facies metamorphism during the Pan-African Orogeny. The deformation was the result of a regional sinistral transpressive event. This study in the northern part of the West African Craton shows the superposition of the Pan-African on the Eburnian Orogeny and the presence of a major fault in the Anti-Atlas.

  14. Hemorragia subaracnoídea com tomografia de crânio sem sinais de sangramento Subarachnoidal hemorrhage with cranial tomography without bleeding signals

    Directory of Open Access Journals (Sweden)

    Silvio Francisco

    1997-09-01

    Full Text Available Foram observados 23 casos de pacientes com suspeita clínica de hemorragia subaracnoídea (HSA, com tomografia de crânio (CT sem sinais de sangramento, com diagnóstico definitivo realizado por exame de líquido cefalorraquiano(LCR. Desses, 20 casos foram submetidos a angiografia cerebral. Estabeleceu-se a classificação clínica de Hunt & Hess. Os principais achados neste estudo foram:1 um terço dos pacientes apresentou intervalo de tempo entre o ictus e a realização da CT e do LCR entre 24 e 48 horas, período de maior sensiblidade da CT; 2 dos pacientes estudados com angiografia cerebral, 55% tiveram o diagnóstico de aneurisma com predomínio no território de carótida e cerebral anterior; 3 o grau clínico dominante foi Hunt & Hess I e II. Todos os achados encontrados demonstraram a necessidade da realização de LCR em suspeita de HSA sem sinais de sangramento na CT.We observed 23 pacients with clinical hypothesis of subarachnoidal hemorrhage (SAH having cranial tomography (CT without bleeding signals. The final diagnosis of SAH was made upon the cerebrospinal fluid (CSF results. Twenty cases were submitted to brain angiography. They were focused under the clinical classification of Hunt & Hess. The main results were: 1 1/3 of patients had interval time between 24 and 48 hours after ictus and before CT and CSF making; this was the most sensitive CT time; 2 55% of patients with brain angiography had aneurysm predominantly in the carotid and anterior cerebral artery territory; 3 the dominant clinical degree was Hunt & Hess I e II. Conclusion: the results demonstrate the need of CSF test in case of SAH clinical diagnosis with CT showing no bleeding signals.

  15. PROGRAMA CIENTÍFICO PARA O MONITORAMENTO EM TEMPO REAL OU PÓS-PROCESSADO DAS IRREGULARIDADES IONOSFÉRICAS E CINTILAÇÃO DOS SINAIS GNSS

    Directory of Open Access Journals (Sweden)

    Vinícius Amadeu Stuani Pereira

    Full Text Available O Brasil é um dos países que mais sofrem os efeitos provocados pela ionosfera, principalmente os oriundos da Anomalia de Ionização Equatorial, irregularidades ionosféricas e cintilação dos sinais GNSS (Global Navigation Satellite System. Várias estratégias podem ser utilizadas para minimizar os efeitos, tais como: modelos ionosféricos, arquivos IONEX ou a combinação linear ion-free. Em se tratando do monitoramento da ionosfera a situação é diferente. A quantidade de instrumentos dedicados ao estudo da camada ionosférica é reduzida no âmbito brasileiro. Neste contexto foi desenvolvido o programa científico denominado Ion_Index, com objetivo de estimar indicadores dos níveis de irregularidades da ionosfera e de cintilação dos sinais GNSS em tempo real ou pós-processado, utilizando a infraestrutura já existente de dados GNSS de redes ativas públicas, como a RBMC, a GNSS-SP e a CALIBRA, transformando assim estações GNSS em estações monitoras da camada ionosférica. Dessa forma é proporcionado um aumento na resolução espacial das informações sobre o comportamento da ionosfera na região brasileira, permitindo um melhor entendimento e contribuindo para o desenvolvimento ou aprimoramento de modelos de mitigação. Experimentos utilizando dados de ionossondas digitais e de receptores PolaRxS-PRO da Septentrio (fontes externas comprovam a eficiência do programa

  16. Assessment of genetic diversity and relationships among Egyptian mango (Mangifera indica L.) cultivers grown in Suez Canal and Sinai region using RAPD markers.

    Science.gov (United States)

    Mansour, Hassan; Mekki, Laila E; Hussein, Mohammed A

    2014-01-01

    DNA-based RAPD (Random Amplification of Polymorphic DNA) markers have been used extensively to study genetic diversity and relationships in a number of fruit crops. In this study, 10 (7 commercial mango cultivars and 3 accessions) mango genotypes traditionally grown in Suez Canal and Sinai region of Egypt, were selected to assess genetic diversity and relatedness. Total genomic DNA was extracted and subjected to RAPD analysis using 30 arbitrary 10-mer primers. Of these, eleven primers were selected which gave 92 clear and bright fragments. A total of 72 polymorphic RAPD bands were detected out of 92 bands, generating 78% polymorphisms. The mean PIC values scores for all loci were of 0.85. This reflects a high level of discriminatory power of a marker and most of these primers produced unique band pattern for each cultivar. A dendrogram based on Nei's Genetic distance co-efficient implied a moderate degree of genetic diversity among the cultivars used for experimentation, with some differences. The hybrid which had derived from cultivar as female parent was placed together. In the cluster, the cultivars and accessions formed separate groups according to bearing habit and type of embryo and the members in each group were very closely linked. Cluster analysis clearly showed two main groups, the first consisting of indigenous to the Delta of Egypt cultivars and the second consisting of indigenous to the Suez Canal and Sinai region. From the analysis of results, it appears the majority of mango cultivars originated from a local mango genepool and were domesticated later. The results indicated the potential of RAPD markers for the identification and management of mango germplasm for breeding purposes.

  17. Babesia behnkei sp. nov., a novel Babesia species infecting isolated populations of Wagner's gerbil, Dipodillus dasyurus, from the Sinai Mountains, Egypt.

    Science.gov (United States)

    Bajer, Anna; Alsarraf, Mohammed; Bednarska, Małgorzata; Mohallal, Eman M E; Mierzejewska, Ewa J; Behnke-Borowczyk, Jolanta; Zalat, Sammy; Gilbert, Francis; Welc-Falęciak, Renata

    2014-12-09

    Although a number of new species of Babesia/Theileria have been described recently, there are still relatively few reports of species from Africa. In this study based on the evaluation of morphology and phylogenetic relationships, we describe a novel species from Wagner's gerbil, Babesia behnkei n. sp. Rodents (n = 1021) were sampled in four montane valleys (wadies) in 2000, 2004, 2008 and 2012 in the Sinai Mountains, Egypt. The overall prevalence of Babesia spp. was highest in the Wagner's gerbil (Dipodillus dasyurus; 38.7%) in comparison to the prevalence in the spiny mice species, Acomys dimidiatus and A. russatus. Morphological investigations were conducted for the comparison of trophozoites of the novel species of Babesia with the B. microti King's 67 reference strain. Thirty-two isolates derived from D. dasyurus over a 9 year period (2004-2012) from two wadies (29 isolates from Wadi Gebel and 3 from Wadi El-Arbaein) were investigated by microscopic, molecular and phylogenetic analysis. A near-full-length sequence of the 18S rRNA gene and the second internal transcribed spacer (ITS2) region were amplified, sequenced and used for the construction of phylogenetic trees. A novel species of Babesia was identified in two isolated populations of D. dasyurus. Phylogenetic analysis of 18S rDNA and ITS2 sequences revealed that B. behnkei n. sp. is most closely related to B. lengau from cheetahs from South Africa and to Nearctic species found only in North America (the pathogenic B. duncani and B. conradae) and that it is more distant to the cosmopolitan rodent parasite B. microti. Trophozoites of B. behnkei were smaller and less polymorphic than trophozoites of B. microti. Babesia behnkei n. sp. is a novel species of the 'Duncani group' maintained in isolated populations of Dipodillus dasyurus occurring in the Sinai Mountains of Egypt.

  18. Building Sustainable Local Capacity for Global Health Research in West Africa.

    Science.gov (United States)

    Sam-Agudu, Nadia A; Paintsil, Elijah; Aliyu, Muktar H; Kwara, Awewura; Ogunsola, Folasade; Afrane, Yaw A; Onoka, Chima; Awandare, Gordon A; Amponsah, Gladys; Cornelius, Llewellyn J; Mendy, Gabou; Sturke, Rachel; Ghansah, Anita; Siberry, George K; Ezeanolue, Echezona E

    also by numbers of independent investigators and grants funded. Through equitable collaborations, infrastructure, and mentoring, West Africa can match the rest of Africa in impactful global health research. Copyright © 2016 Icahn School of Medicine at Mount Sinai. All rights reserved.

  19. Geothermal and volcanism in west Java

    Science.gov (United States)

    Setiawan, I.; Indarto, S.; Sudarsono; Fauzi I, A.; Yuliyanti, A.; Lintjewas, L.; Alkausar, A.; Jakah

    2018-02-01

    Indonesian active volcanoes extend from Sumatra, Jawa, Bali, Lombok, Flores, North Sulawesi, and Halmahera. The volcanic arc hosts 276 volcanoes with 29 GWe of geothermal resources. Considering a wide distribution of geothermal potency, geothermal research is very important to be carried out especially to tackle high energy demand in Indonesia as an alternative energy sources aside from fossil fuel. Geothermal potency associated with volcanoes-hosted in West Java can be found in the West Java segment of Sunda Arc that is parallel with the subduction. The subduction of Indo-Australian oceanic plate beneath the Eurasian continental plate results in various volcanic products in a wide range of geochemical and mineralogical characteristics. The geochemical and mineralogical characteristics of volcanic and magmatic rocks associated with geothermal systems are ill-defined. Comprehensive study of geochemical signatures, mineralogical properties, and isotopes analysis might lead to the understanding of how large geothermal fields are found in West Java compared to ones in Central and East Java. The result can also provoke some valuable impacts on Java tectonic evolution and can suggest the key information for geothermal exploration enhancement.

  20. West Europe Report

    Science.gov (United States)

    1987-04-28

    resume of his 5 years on the job. Jagmetti makes use of a revealing image in assessing his job. "Given the choice of attending a lecture on the global ...the Netherlands and in West Germany with Hawk and now also Patriot surface-to-air guided missiles. The Nike will be phased out within the...becomes obsolete, it should be modernized to fly for another 20-25 years. This kind of thing is very common in the navy, but it is a brand new idea

  1. West African Antislavery Movements

    DEFF Research Database (Denmark)

    Hahonou, Eric Komlavi; Pelckmans, Lotte

    2011-01-01

    In the context of liberalization of West African political regimes, the upsurge of audacious political entrepreneurs who want to end chattel slavery in their nation-state, resulted in the legal criminalisation of slavery in both Mauritania (2007) and Niger (2003) and in a proposal to revise......-slavery movements had raised awareness, this political emergence was even easier. Indeed the fight against ‘slave mentalities’ was everywhere a major challenge and a crucial step to mobilize groups of slave status under a united force. As this article argues changes in political structures and changes in political...

  2. JPRS Report, West Europe

    Science.gov (United States)

    1988-05-05

    the pound sterling at 2,196.49 Turkish lira. The TRNC Central Bank also announced that foreign exchange rates will henceforth be set on a "daily...34 basis. Stating that banks in Northern Cyprus began setting their foreign exchange rates on the basis of the Tahtakale [free market] rates after the...percent, the discrepancy between the foreign exchange rates offered by the Central Bank and those offered by the commercial banks dropped from 10

  3. Paleoenvironmental Evolution of Continental Carbonates in West-Central Brazil

    Directory of Open Access Journals (Sweden)

    EMILIANO C. OLIVEIRA

    Full Text Available ABSTRACT This paper presents a sedimentological and stratigraphical study of Quaternary (Middle to Late Pleistocene/Holocene continental carbonates outcrops inside Pantanal Basin and its surroundings, especially in Serra da Bodoquena, Pantanal do Miranda and Corumbá/Ladário plateau, in the state of Mato Grosso do Sul, as well as in Serra das Araras, in the state of Mato Grosso. The aim is to understand the depositional paleoenvironments and analyse climate and tectonic influences in their genesis and evolution. The results show that the deposition of these continental carbonates started in the Middle to Late Pleistocene and have continued, with some interruptions, until the present days. Sedimentary successions were identified in the different areas, without complete correlation. Two sedimentary successions separated by an erosional surface were described in Serra da Bodoquena and Serra das Araras. In Corumbá and Pantanal do Miranda, only one succession was described. These successions were deposited in elongated lakes parallel to fault planes; small lakes, related plains and plateaus; springs related to cliffs produced by faulting; rivers conditioned by topographic variation. The climatic interpretation, without proper temporal resolution, obtained by the stable-isotope composition and stratigraphic interpretation, indicates alternation of dry and wet periods. The Neoproterozoic faults with their neotectonics and the subsidence of the Pantanal Basin, are the major control for carbonated water flow and development of depositional areas, gradually turning plateaus into slight tilted areas, allowing the evolution of depositional systems from lakes to rivers.

  4. Agricultural Land Use Change after NAFTA in Central West Mexico

    Directory of Open Access Journals (Sweden)

    Quetzalcóatl Orozco-Ramírez

    2017-10-01

    Full Text Available It has been suggested that agricultural land use change and modernization in agricultural production techniques are related to the loss of crop diversity. Two processes contribute to this loss; first is the replacement of landraces by modern varieties, and second is the abandonment of traditional crops in favor of cash crops. We studied the expression of these processes in a region that is both an agro-biodiversity and cultural center and one of the most significant fruit exporters of Mexico. We analyzed agricultural change based on the transformation of cropping areas and the primary crops’ locations in Michoacán state. We examined the crop-harvested area statistics from 1950 to 2015, and identified 23 crops as the most important in terms of harvested area and monetary value. After NAFTA (North American Free Trade Agreement, harvested area for nine crops changed significantly: seven crops increased, and two decreased. Positive trends were observed for commercial fruits oriented to export markets, and negative trends were observed for traditional crops. These crops, such as beans and maize, are important for food security. Additionally, we analyzed how these land-use and agricultural changes overlap in zones of maize planted-area change. Using a maize-race collection database, we identified three native maize races that could be at risk due to the abandonment of maize in favor of commercial crops.

  5. Educational Research Network for West and Central Africa ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Le nouveau site Web facilitera l'enregistrement des événements démographiques afin d'améliorer l'accès aux services pour tous. Le nouveau site Web et la nouvelle bibliothèque de ressources aideront à améliorer les systèmes d'information et d'enregistrement des faits d'état civil dans les pays en développement.

  6. Restoration of mangroves along the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Untawale, A.G.

    of various measures taken by the Ministry of Environment and Forests, Government of India. New Delhi, conservation and management policies were initiated between 1985-1995. During this period it was observed, with remote sensing techniques, that vast...

  7. Integrated geophysical study off Goa, Central West Coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Ramana, M.V.; Desa, M.; Ramprasad, T.

    to 31r). The present study indicates that the Goa offshore is an integral part of the Laxmi Basin. As such it is interpreted that a tectonic boundary between the oceanic crust in the north and the CLR complex in the south lies south of the study area...

  8. West and Central African Research and Education Networking ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    For universities and research centres around the world, the Internet has become an ... This will include undertaking feasibility studies, developing a strategic plan, ... Internet protocol resources : a tool for positioning African higher education ...

  9. Studies on boron along the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Shirodkar, P.V.; Singbal, S.Y.S.; SenGupta, R.

    Boron in its inorganic form in the Arabian Sea waters varies from 1.17 to 4.74 mg/kg. There is, at some stations, depthwise correlation between inorganic B and primary productivity. B/Cl varies from 0.122 to 0.238 for shallow stations and from 0...

  10. West and Central Africa — Addressing new challenges | CRDI ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    First, the region is increasingly dry, meaning that a source of water that is free looks ... But equally important, it required that everyone — from the mayor's office down ... Forget is also proud of the work done by the IDRC-supported Educational ...

  11. Typhoid intestinal perforation in North Central Nigeria | Ugwu | West ...

    African Journals Online (AJOL)

    L'incidence était élevée en 67% entre novembre et mars - pendant la saison seche au Nigeria. Le rapport homme/femme était 1,9:1 avec un âge moyen de 19 ans et la période d'hospitalisation moyenne de 18 jours. Nous avons eu 167 perforations; quatre concernent l'intestin supérieur er appendice, et dans 72,2% des ...

  12. Marine fauna of Malvan, Central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Parulekar, A.H.

    oysters, were identified. Rock pool environment was most interesting, as it not only had the maximum number of species but also a high order of faunal diversity. Eight zones indicating the vertical distribution of fauna in relation to tidal range were...

  13. Placer chromite along south Maharashtra, central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Gujar, A.R.; Ambre, N.V.; Iyer, S.D.; Mislankar, P.G.; Loveson, V.J.

    . An examination of the electron photomicrographs revealed several features of the chromite grains (Figure 5 c to f ). Grains display mechanical breaking such as con- choidal to sub-conchoidal fractures, V-shaped impact depressions and irregular cracks... . In this article we describe the occurrence, mineralogy, geochemistry, transport mechanisms, provenance and economic feasibility of the chromite deposit of south Maharashtra coast. Methodology Surficial and sub-surficial samples from various physi- ographic...

  14. Fragmented populations of leopards in West-Central Africa: Facing ...

    African Journals Online (AJOL)

    Leopard populations were found to be associated with lions and hyaenas but they avoided human disturbances. Regarding potential breeding dispersal, the Gaussian representation showed a clear fragmentation among populations, suggesting that long-term survival of the species could be threatened. We found no area ...

  15. Seabed surveys of Mormugao Harbour, Central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Wagle, B.G.; Gujar, A.R.; Subrahmanyam, V.; Mislankar, P.G.

    Detailed echosounding, side scan sonar and shallow seismics (125 line km) covering an area of 6.2 km2 in the Mormugao harbour provided information on seabed topography, surficial distribution of sediments, their thickness and rock outcrops along...

  16. Transnational Research on Decentralization in West and Central ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    ... integration of actors and actions favorable to the development of equitable and coherent provision of basic social services? The study will be carried out by multidisciplinary teams constituted at the national level under the administrative coordination of ROCARE and the technical supervision of two principal researchers.

  17. Women's participation in developing west China.

    Science.gov (United States)

    Huang, D

    2000-06-01

    In China, the underdeveloped economy of the west has limited women's employment opportunities compared with their counterparts in the eastern and central region. Most women workers are engaged in agricultural production offering few opportunities for career development. Education, awareness of participation, fertility level, and health conditions are the compounding factors that hindered women's employment. According to a 10% sampling survey of the 4th population census in 1990, a high percentage of illiterates and semi-illiterates and a high dropout rate among girl students are noted. Moreover, a survey of maternal mortality rates indicated that the rate in west China was still far higher than that in central and eastern areas. In the context of its fertility, it is evident that the average age at first marriages and childbirth for women are considerably lower than the national average, while the percentage of women having multiple children is markedly higher than the national level. The paper proposes the following: improve education for women, especially girls; promote gender equality; publicize and implement the family planning policy; and increase spending on improving young girls' nutrition and on acquisition of medical equipment in western China for a balanced national economic development.

  18. A Educação Bilíngue e o Acesso à Língua Brasileira de Sinais na Educação Infantil

    Directory of Open Access Journals (Sweden)

    Dulcéria Tartuci

    2016-10-01

    Full Text Available Ao considerarmos que mais de 90% das crianças surdas brasileiras têm pais ouvintes e que o acesso à Libras ocorre tardiamente é que este artigo teve por objetivo discutir a importância da educação bilíngue para as crianças surdas e o acesso à Língua brasileira de sinais – Libras na educação infantil. As análises apontaram que a produção acadêmica sobre esse tema é escassa no Brasil, inclusive nos Grupos de Trabalho que respaldam pesquisas sobre a educação infantil e educação especial, ressaltaram como meta a educação bilíngue no contexto escolar do aluno surdo, mas que essa prerrogativa não vem se efetivando amplamente na educação infantil. Além disso, apontaram a complexidade envolvida no aprendizado da Libras e no ensino da Língua portuguesa escrita, como segunda língua; a falta de acesso ao mundo letrado por meio de suportes que considere a perspectiva bilíngue e a demanda por professores surdos e ouvintes com domínio da Libras. ResumoAo considerarmos que mais de 90% das crianças surdas brasileiras têm pais ouvintes e que o acesso à Libras ocorre tardiamente é que este artigo teve por objetivo discutir a importância da educação bilíngue para as crianças surdas e o acesso à Língua brasileira de sinais – Libras na educação infantil. As análises apontaram que a produção acadêmica sobre esse tema é escassa no Brasil, inclusive nos Grupos de Trabalho que respaldam pesquisas sobre a educação infantil e educação especial, ressaltaram como meta a educação bilíngue no contexto escolar do aluno surdo, mas que essa prerrogativa não vem se efetivando amplamente na educação infantil. Além disso, apontaram a complexidade envolvida no aprendizado da Libras e no ensino da Língua portuguesa escrita, como segunda língua; a falta de acesso ao mundo letrado por meio de suportes que considere a perspectiva bilíngue e a demanda por professores surdos e ouvintes com domínio da Libras. 

  19. Hematologia e sinais clínicos de Piaractus mesopotamicus infectados experimentalmente com Aeromonas hydrophila = Hematology and clinical signs of Piaractus mesopotamicus experimentally infected with Aeromonas hydrophila

    Directory of Open Access Journals (Sweden)

    Flávio Ruas Moraes

    2009-01-01

    Full Text Available Este ensaio teve como objetivo avaliar as respostas hematológicas e a ocorrência de sinais clínico-patológicos de Piaractus mesopotamicus infectados experimentalmente por Aeromonas hydrophila. Foram utilizados 324 pacus, P. mesopotamicus, com peso de 102,84 ±27,1 g, distribuídos em 27 caixas de 300 L de capacidade, sendo 14 peixes por caixa. Os peixes foram mantidos nas caixas durante um mês, recebendo dieta balanceada, período em que se evitou qualquer tipo de manejo estressante. Passado esse período, foram infectadoscom 6 x 106 UFC de A. hydrophila, injetada via intraperitoneal. As coletas e análises de sangue foram realizadas 24h antes da infecção experimental e 24h após a infecção. Os resultados permitem concluir que a infecção por A. hydrophila em P. mesopotamicus écaracterizada por escurecimento da derme e sinais clínicos-patológicos relacionados à hemorragia, anemia normocítica-hipocrômica, redução nos níveis de proteínas, globulinasplasmáticas e eosinófilos, leucopenia, linfopenia, trombocitopenia, neutrofilia e monocitose. The purpose of this study was to evaluate the hematological response and clinical sign of Piaractus mesopotamicus infected byAeromonas hydrophila. Were used 324 pacus, P. mesopotamicus weighing 102.84 ± 27.1 g distributed in 27 water tanks with 300 L of capacity, 14 fish per tank. The fish were kept in the water tanks during one month, receiving appropriate diet. In this period was avoidedstressing management. After this period, the fish were infected with 6 × 108 cfu of A. hydrophila fish-1, injected intraperitoneally. The blood collection was carried 24h before experimental infection and 24h after its. The A. hydrophila infection in P. mesopotamicus ischaracterized by dark skin and clinical signs related to hemorrhage, hypochromic normocytic anemia, decrease on plasmatic proteins and globulins levels, leucopenia, lymphopenia, thrombocytopenia, eosinophilia, neutrophilia and monocytosis.

  20. A produção científica sobre Língua Brasileira de Sinais (Libras presente nos currículos Lattes do CNPq

    Directory of Open Access Journals (Sweden)

    Simone Aparecida dos Santos

    Full Text Available RESUMO Análise da produção de artigos científicos sobre o tema Língua Brasileira de Sinais (Libras no período de 1987 a 2014. A escolha do período ocorreu em função da comparação entre a produção de artigos sobre o tema antes e depois da promulgação da lei nº 10.436/2002, que reconheceu a Língua Brasileira de Sinais (Libras como meio de comunicação dos surdos. A metodologia adotada foi de cunho quantitativo, com a adoção de técnicas bibliométricas para medir a produção em Libras. A pesquisa teve como corpus de investigação a citada produção científica declarada pelos pesquisadores em seus respectivos currículos disponibilizados na Plataforma Lattes. Foram identificados 102 autores e 241 artigos de periódicos. Verificou-se um aumento de títulos de doutores após a promulgação da Lei de Libras. A produção de 241 artigos de periódicos foram produzidos por 102 autores. Os títulos de periódicos que mais publicaram artigos sobre Libras estão ligados à instituição especializada como o Instituto Nacional de Educação de Surdos (INES, Linguística, Estudos Linguísticos e Educação. Mesmo em uma temática com pouco tempo de existência constatou-se significativo crescimento na publicação de artigos sobre o tema, cerca de 417%, após a promulgação da lei de Libras. Portanto, conclui-se que ocorreu um reflexo positivo para o desenvolvimento da área depois da promulgação da lei de Libras.

  1. Características de repositório educacional aberto para usuários de língua brasileira de sinais

    Directory of Open Access Journals (Sweden)

    Romario Antunes da Silva

    Full Text Available O objetivo desse artigo é identificar as características que um repositório educacional aberto deve apresentar para atender as necessidade de informação dos alunos surdos e ouvintes do curso Letras Libras na modalidade a distância da Universidade Federal de Santa Catarina. Os objetivos específicos foram: a descrever o perfil dos alunos surdos e ouvintes; b examinar o uso das tecnologias da informação por esses alunos; e c identificar os documentos que um repositório deve apresentar para atender as necessidades de informação desses alunos. A pesquisa é exploratória, descritiva e qualitativo-quantitativa, e a análise foi realizada com estatística descritiva e análise de conteúdo. Conclui-se que os alunos utilizam o e-mail, as listas de discussão, o Messenger, ferramentas para compartilhamento de vídeos e os sites para surdos. Os alunos consideram muito importantes os processadores de texto, Messenger, Movie Maker, Media Player e planilhas para cálculo. Os alunos surdos consideram como documentos mais relevantes as videoaulas, dicionários e apostilas, e os alunos ouvintes, as videoaulas, os livros e as apostilas. O tipo de conteúdo requisitado são notícias sobre surdos, língua brasileira de sinais, tradução, tecnologia, linguística, aprendizagem do português, interpretação médico-jurídica e cultura surda. Os suportes requisitados para acesso à informação são os dicionários, vídeos, livros digitais e artigos. Os alunos preferem acessar as informações no repositório por meio de língua de sinais, legendas e em português.

  2. Ebola in West Africa.

    Science.gov (United States)

    Raka, Lul; Guardo, Monica

    2015-03-15

    Ebola viral disease (EVD) is a severe and life-threatening disease. The current Ebola outbreak in West Africa entered its second year and is unprecedented because it is the largest one in history, involved urban centers and affected a large number of health care workers. It quickly escalated from medical into a humanitarian, social, economic, and security crisis. The primary pillars to prevent EVD are: early diagnosis, isolation of patients, contact tracing and monitoring, safe burials, infection prevention and control and social mobilization. The implementation of all these components was challenged in the field. Key lessons from this Ebola outbreak are that countries with weak health care systems can't withstand the major outbreaks; preparedness to treat the first confirmed cases is a national emergency; all control measures must be coordinated together and community engagement is the great factor to combat this disease.

  3. Ebola in West Africa

    Directory of Open Access Journals (Sweden)

    Lul Raka

    2015-02-01

    Full Text Available Ebola viral disease (EVD is a severe and life-threatening disease. The current Ebola outbreak in West Africa entered its second year and is unprecedented because it is the largest one in history, involved urban centers and affected a large number of health care workers. It quickly escalated from medical into a humanitarian, social, economic, and security crisis. The primary pillars to prevent EVD are: early diagnosis, isolation of patients, contact tracing and monitoring, safe burials, infection prevention and control and social mobilization. The implementation of all these components was challenged in the field. Key lessons from this Ebola outbreak are that countries with weak health care systems can’t withstand the major outbreaks; preparedness to treat the first confirmed cases is a national emergency; all control measures must be coordinated together and community engagement is the great factor to combat this disease.

  4. Collision physics going west

    International Nuclear Information System (INIS)

    Anon.

    1988-01-01

    The centroid of proton-antiproton physics is moving west across the Atlantic concluded Luigi Di Leila of CERN in his summary talk at the Topical Workshop on Proton-Antiproton Collider Physics, held at Fermilab in June. Previous meetings in this series had been dominated by results from CERN's big proton-antiproton collider, dating back to 1981. However last year saw the first physics run at Fermilab's collider, and although the number of collisions in the big CDF detector was only about one thirtieth of the score so far at CERN, the increased collision energy at Fermilab of 1.8 TeV (1800 GeV, compared to the routine 630 GeV at CERN) is already paying dividends

  5. West Germany's nuclear dilemma

    International Nuclear Information System (INIS)

    Dangelmayer, D.

    1978-01-01

    The US 1978 Nuclear Non-Proliferation Act legislated the embargo of enriched uranium supplies from that country to any other country which would not agree to tighter restrictions on a wide variety of their nuclear activities, including the reprocessing of spent uranium to provide separated plutonium. This has resulted in a three month supply cut-off to the EEC countries. However the EEC is now willing to renegotiate supply contracts with the US to accord with the tighter safeguards set down in the Act. Effectively both sides now have an 18 month breathing space for them to seek a compromise on the non-proliferation question. The effect of these strategies on West Germany's energy policy, which seeks to become increasingly energy self-sufficient through the use of nuclear fuel reprocessing and the fast reactor, is discussed. (U.K.)

  6. Entre a dança e a língua de sinais, a caixa mágica da criação : possibilidades interativas para dança com surdos e ouvintes

    OpenAIRE

    Tatiana Wonsik Recompenza Joseph

    2010-01-01

    Resumo: Esta é uma pesquisa teórico-prática, que se iniciou com a vivência de se fazer dança e se pensar o corpo em cena tanto junto a surdos quanto a ouvintes, em diferentes contextos. Chamamos o nosso corpo de ''corpo criador'', baseados na corporeidade fenomenológica e assumimos que, ao levar em consideração que o corpo transita entre a língua de sinais e a dança com a mesma lógica reflexionante em ambos os contextos, podemos selecionar conteúdos comuns à dança e à língua de sinais para se...

  7. Using an evidence-based approach for system selection at a large academic medical center: lessons learned in selecting an ambulatory EMR at Mount Sinai Hospital.

    Science.gov (United States)

    Kannry, Joseph; Mukani, Sonia; Myers, Kristin

    2006-01-01

    The experience of Mount Sinai Hospital is representative of the challenges and problems facing large academic medical centers in selecting an ambulatory EMR. The facility successfully revived a stalled process in a challenging financial climate, using a framework of science and rigorous investigation. The process incorporated several innovations: 1) There was a thorough review of medical informatics literature to develop a mission statement, determine practical objectives and guide the demonstration process; 2) The process involved rigorous investigation of vendor statements, industry statements and other institution's views of vendors; 3) The initiative focused on user-centric selection, and the survey instrument was scientifically and specifically designed to assess user feedback; 4) There was scientific analysis of validated findings and survey results at all steering meetings; 5) The process included an assessment of vendors' ability to support research by identifying funded and published research; 6) Selection involved meticulous total cost of ownership analysis to assess and compare real costs of implementing a vendor solution; and finally, 7) There were iterative meetings with stakeholders, executives and users to understand needs, address concerns and communicate the vision.

  8. Designing and evaluation of three alternatives highway routes using the Analytical Hierarchy Process and the least-cost path analysis, application in Sinai Peninsula, Egypt

    Directory of Open Access Journals (Sweden)

    Hala A. Effat

    2013-12-01

    Full Text Available Land use planning in a remote desert zone is usually dependent on an efficient corridor and main road network system. In this paper, Geographic Information System (GIS tools were used to develop a least-cost path for a corridor to link three cities in Sinai Peninsula desert environment. It is supposed to create a backbone for developing the middle part of peninsula by facilitating the transport of mineral resources and accessibility to such region and encourage populating the remote desert city of Nekhel and the coastal cities of Taba and El Shatt. Therefore, such a route should have the least cost and should be protected from the negative impacts that may be caused by the surrounding environment. Environmental and economical factors were integrated through a spatial multicriteria model using the Analytical Hierarchy Process. Cost factors were identified and a cost surface was created for each factor, standardized, weighed and aggregated. Three visions were modelled: an engineering vision, an environmental vision and a hybrid vision. A multicriteria evaluation was used to compare the three routes. The hybrid route was finally recommended.

  9. Bio-preparates support the productivity of potato plants grown under desert farming conditions of north Sinai: Five years of field trials

    Directory of Open Access Journals (Sweden)

    Mohammed T. Abbas

    2014-01-01

    Full Text Available Organic agriculture as well as good agricultural practices (GAPs intrigues the concern of both consumers and producers of agricultural commodities. Bio-preparates of various rhizospheric microorganisms (RMOs are potential sources of biological inputs supporting plant nutrition and health. The response of open-field potatoes to the application of RMO bio-preparates, the biofertilizer “Biofertile” and the bioagent “Biocontrol”, were experimented over 5 successive years under N-hunger of north Sinai desert soils. Both vegetative and tuber yields of a number of tested cultivars were significantly improved due to rhizobacterial treatments. In the majority of cases, the biofertilizer “Biofertile” did successfully supply ca. 50% of plant N requirements, as the yield of full N-fertilized plants was comparable to those received 50% N simultaneously with bio-preparates treatment. The magnitude of inoculation was cultivar-dependent; cvs. Valor and Oceania were among the most responsive ones. Bio-preparate introduction to the plant–soil system was successful via soaking of tubers and/or spraying the plant canopy. The “Biocontrol” formulation was supportive in controlling plant pathogens and significantly increased the fruit yields. The cumulative effect of both bio-preparates resulted in tuber yield increases of ca. 25% over control.

  10. A aprendizagem coletiva de língua portuguesa para surdos através das interações em língua de sinais

    Directory of Open Access Journals (Sweden)

    Vanessa de Oliveira Dagostim Pires

    Full Text Available Este artigo analisa as interações em língua de sinais (LS, entre alunos surdos do ensino fundamental, nas aulas de Língua Portuguesa. Ele foi inspirado no trabalho de Donato (1994, que buscou identificar a presença da prática do andaimento nas interações entre pares em sala de aula de língua francesa como segunda língua. Em nossa pesquisa, analisamos através do sociointeracionismo (VYGOTSKY, 1988; WOOD, BRUNNER e ROSS, 1976 as interações entre os alunos surdos durante o desenvolvimento de uma unidade didática que os incentivava a escrever uma carta de reclamação, em Língua Portuguesa, sobre a sua escola. É possível perceber como as estratégias de andaimento possibilitaram a construção coletiva de aprendizagem para a realização da tarefa proposta.

  11. Utilização de novas tecnologias na popularização da Língua Brasileira de Sinais

    Directory of Open Access Journals (Sweden)

    Carlos Henrique de Araújo Monteiro

    2012-12-01

    Full Text Available http://dx.doi.org/10.5007/1807-0221.2012v9n14p92 O presente artigo contém propostas de ações de extensão que estão sendo implementadas com a finalidade de divulgar a Língua Brasileira de Sinais (LIBRAS numa comunidade preponderamente não-surda da região metropolitana do Rio de Janeiro. Tais propostas analisam a relação existente entre a ausência de informação sobre a pedagogia inclusiva do surdo e a escassez de políticas públicas que implementam medidas de inclusão social. Com realizações de sessões de captura de vídeo de gestos, foi possível ensinar gestos em LIBRAS para sujeitos ouvintes além de promover debates sobre temas relativos à deficiência auditiva e comunicação. Deste modo, foi possível alcançar a principal meta deste trabalho: alertar aos voluntários sobre o abismo linguístico existente entre surdos e ouvintes. Ao total, no ano de 2012, foram ensinados 24 verbetes em LIBRAS para 57 voluntários e 3 instituições públicas estiveram envolvidas na realização deste.

  12. Alien smuggling: East to West.

    Science.gov (United States)

    Walsh, J H

    1987-01-01

    This year untold millions of illegal aliens will enter Western Europe, Canada, and the US; in 1986, the US alone made 1.7 million apprehensions. Because of the numbers involved and the hard currency exchanged, alien smuggling has become big business--a lucrative track in desparate human beings. West Germany's open door asylum policy has been a boon to the smugglers, and West Berlin is currently a favored port of entry. The government provides social benefits--apartments, food, a stipend, and clothing--for asylum seekers. Smuggling operations appear to fit 3 categories: 1) state-sponsored alien smugglers, with a sub-category of terrorists; 2) ethnic smugglers with a history of terrorist spinoffs; and 3) independent smugglers, who are profit oriented, and willing to handle ethnic aliens and terrorists. In West Germany, immigration investigations begin at the border. West German officials often know that as they cause the Eastern border to be tightened, the flow will gravitate south toward Austria. Redirecting the trasit of Third Worlders from East Berlin away from West Germany, Sweden, and Denmark will be a stop-gap measure at best. Part of West Germany's immigration problem can be traced to the Basic Law that provides asylum for those who claim persecution (political, racial, ethnic, or religious). Yet, any attempt to change asylum would result in an admission of defeat in the quest for a unified Germany. Should Austria move to tighten its immigration laws, agreements similar to those between East and West Germany will likely follow.

  13. Groundwater exploration and evaluation by using geophysical interpretation (case study: Al Qantara East, North Western Sinai, Egypt)

    International Nuclear Information System (INIS)

    Sultan, Sultan Awad; Mekhemer, Hatem M; Santos, Fernando M

    2009-01-01

    Different geophysical tools such as geoelectric, gravity, and magnetic have been applied to detect groundwater potentiality and structural elements, which controlled a geometry of the groundwater aquifers in the study area. Nineteen vertical electrical soundings measured using ABEM SAS 4000 equipment through Schlumberger configuration of AB/2 ranged from 1.5 to 1,000 m; the quantitative interpretation was carried out using manual and analytical techniques. The results of quantitative interpretation used to construct six geoelectrical cross-sections indicate that the subsurface sequence of the study area consists of seven geoelectrical units. These units are Quaternary sand sheet and sand dunes, Quaternary aquifer, marly limestone, clay, sandy clay, clay with sandstone intercalation, and deep Nubian sandstone aquifer. The isopach map of the Quaternary aquifer exhibits thickness of the Quaternary aquifer that increased at the northern and southern part (50 m) and decreased at the eastern and western part (5 m), and the depth of the aquifer increased at the northern part (40 m) and decreased at the central part to 6 m. The isoresistivity map of the aquifer shows a high resistivity at the northern part but the southern part reveals low resistivity according to the lithology. The water salinity increases in the direction of groundwater flow from 500 to 10,500 mg/l. The low water salinity is due to direct recharge from El-Sheikh Zayed Canal, which supplied fresh water to this area. Sixty-five gravity stations were measured using Auto-Grav gravity meter; different gravity corrections were applied on raw data. The corrected gravity values were plotted to represent a Bouguer anomaly map; the residual gravity anomaly map was used for delineation of the fault elements. The area was dissected by different fault elements of trends NW-SE, NE-SW, and E-W. In addition, 65 ground magnetic stations were measured at the same sites of gravity stations. The results of magnetic

  14. Trade networks in West Africa

    DEFF Research Database (Denmark)

    Walther, Olivier

    2014-01-01

    To date, most of the literature on trade networks in West Africa has considered networks in a metaphorical way. The aim of this paper is to go one step further by showing how social network analysis may be applied to the study of regional trade in West Africa. After a brief review of the literature......, this exploratory paper investigates two main issues related to regional trade. We start by discussing how recent developments in regional trade in West Africa have contributed to challenging the social structure of traders. We then discuss the changes that have affected the spatiality of regional trade by looking...

  15. Afrique Centrale

    African Journals Online (AJOL)

    PR BOKO

    (Afrique Centrale) : peuplement de protozoaires ciliés et macro invertébrés ... Le lac d'Obili est un écosystème aquatique situé en plein cœur de Yaoundé en ...... électrique des eaux est assez stable, autour de 200 ; ce qui suppose que la ...

  16. West African Journal of Medicine

    African Journals Online (AJOL)

    PROMOTING ACCESS TO AFRICAN RESEARCH ... To furnish a means whereby appropriate international medical and health organisations may transmit information to medical scientists in medical institutions of West Africa and elsewhere.

  17. Endoscopic capacity in West Africa.

    African Journals Online (AJOL)

    Results: In surveying physicians, less than half had resources to perform an ... In fact, a study in Zambia, which discussed ... als in West Africa via pre and post didactic examinations .... teaching tools for the participants who came from a va-.

  18. Balance of the West Antarctic Ice Sheet

    Science.gov (United States)

    2002-01-01

    For several decades, measurements of the West Antarctic Ice Sheet showed it to be retreating rapidly. But new data derived from satellite-borne radar sensors show the ice sheet to be growing. Changing Antarctic ice sheets remains an area of high scientific interest, particularly in light of recent global warming concerns. These new findings are significant because scientists estimate that sea level would rise 5-6 meters (16-20 feet) if the ice sheet collapsed into the sea. Do these new measurements signal the end of the ice sheet's 10,000-year retreat? Or, are these new satellite data simply much more accurate than the sparse ice core and surface measurements that produced the previous estimates? Another possibility is that the ice accumulation may simply indicate that the ice sheet naturally expands and retreats in regular cycles. Cryologists will grapple with these questions, and many others, as they examine the new data. The image above depicts the region of West Antarctica where scientists measured ice speed. The fast-moving central ice streams are shown in red. Slower tributaries feeding the ice streams are shown in blue. Green areas depict slow-moving, stable areas. Thick black lines depict the areas that collect snowfall to feed their respective ice streams. Reference: Ian Joughin and Slawek Tulaczyk Science Jan 18 2002: 476-480. Image courtesy RADARSAT Antarctic Mapping Project

  19. Empowerment model of biomass in west java

    Science.gov (United States)

    Mulyana, C.; Fitriani, N. I.; Saad, A.; Yuliah, Y.

    2017-06-01

    Scarcity of fossil energy accelerates the search of renewable energy sources as the substitution. In West Java, biomass has potential to be developed into bio-briquette because the resources are abundant. The objectives of this research are mapping the potency of biomass as bio-briquette in West Java, and making the model of the empowerment biomass potential involving five fundamental step which are raw material, pre-processing process, conversion mechanism, products, and end user. The main object of this model focused on 3 forms which are solid, liquid, and gas which was made by involving the community component as the owner biomass, district government, academics and researcher communities, related industries as users of biomass, and the central government as the policy holders and investors as a funder. In the model was described their respective roles and mutual relationship one with another so that the bio-briquette as a substitute of fossil fuels can be realized. Application of this model will provide the benefits in renewability energy sources, environmental, socio economical and energy security.

  20. Why the West?

    Directory of Open Access Journals (Sweden)

    Marc Ferguson

    2009-03-01

    Full Text Available La cuestión de cómo "Occidente" llegó a dominar el mundo durante la era moderna se ha debatido recientemente entre los historiadores. El debate se ha polarizado entre quienes ven en la "modernidad" como resultado de un 'milagro', el proceso cultural único generado en el seno del mismo Occidente, y aquellos que cuestionan este "milagro" como paradigma eurocéntrico, y buscan otros factores para entender y explicar el dominio occidental del mundo económico y político. La literatura tradicional, representada por David Landes en su reciente “La riqueza y la pobreza de las naciones”, atribuye el éxito europeo a sus valores culturales únicos, a sus instituciones sociales y sus prácticas políticas. Este éxito fue completamente "impulsado desde dentro” por estas características. Recientemente, varios historiadores han cuestionado este "paradigma del milagro" como eurocéntrica, y miran a otros factores para comprender y explicar el dominio occidental del mundo económico y político. Después de examinar los recientes trabajos de los historiadores frente a este problema, este artículo trata de colocar la expansión europea en un contexto global, y la comprensión de la Revolución Industrial como una transformación global. Esta perspectiva nos permite entender los cambios tecnológicos y económicos Europeos en el contexto más amplio de patrones de interacción económica y cultural de todo el mundo._____________ABSTRACT:The question of how 'the West' came to dominate the globe during the modern era has been debated recently among historians. The debate has been polarized between those who view 'modernity' as the result of a 'European miracle', the culturally unique and internally generated project of the West, and those who question this 'European miracle' paradigm as Eurocentric, and look to other factors to understand and explain Western economic and political world dominance. The traditional narrative, represented by David

  1. Implications of food aid and remittances for West African food import demand

    OpenAIRE

    Kiawu, James; Jones, Keithly G

    2013-01-01

    The influence of food aid and remittances on West African food import demand is evaluated using a Central Bureau of Statistics (CBS) model. Our results show that imports of oilseeds and the rest of the agricultural products category are highly price elastic, and that fruit and vegetables and dairy products are least responsive to price changes. Food aid did not influence West African food imports, but remittances were found to be statistically significant in determining food imports. The infl...

  2. Europa central

    Directory of Open Access Journals (Sweden)

    Karel BARTOSEK

    2010-02-01

    Full Text Available La investigación francesa continúa interesándose por Europa Central. Desde luego, hay límites a este interés en el ambiente general de mi nueva patria: en la ignorancia, producto del largo desinterés de Francia por este espacio después de la Segunda Guerra Mundial, y en el comportamiento y la reflexión de la clase política y de los medios de comunicación (una anécdota para ilustrar este ambiente: durante la preparación de nuestro coloquio «Refugiados e inmigrantes de Europa Central en el movimiento antifascista y la Resistencia en Francia, 1933-1945», celebrado en París en octubre de 1986, el problema de la definición fue planteado concreta y «prácticamente». ¡Y hubo entonces un historiador eminente, para quién Alemania no formaría parte de Europa Central!.

  3. Sinais clínicos e patologia da intoxicação crônica experimental de caprinos por Palicourea marcgravii

    Directory of Open Access Journals (Sweden)

    Edson de F.G. Barbosa

    2015-03-01

    Full Text Available Palicourea marcgravii é considerada a principal planta tóxica de interesse pecuário no Brasil, porém, até o momento, é conhecido apenas o quadro agudo da intoxicação. Esse estudo avaliou as alterações clínico-patológicas de 10 caprinos cronicamente intoxicados por P. marcgravii. Os animais receberam, diariamente, 0,2g/kg de peso corporal da planta fresca por 6 a 38 dias. Os caprinos apresentaram como principais sinais clínicos anorexia, apatia, taquicardia, arritmia, pulso venoso jugular positivo e decúbito. Nas necropsias, os achados macroscópicos foram hidropericárdio, palidez dos rins e do miocárdio, atrofia gelatinosa da gordura cardíaca, evidenciação do padrão lobular hepático e edema pulmonar. Os principais achados microscópicos foram tumefação e vacuolização de cardiomiócitos, necrose de fibras cardíacas e infiltrado inflamatório mononuclear no miocárdio. Nos rins foi encontrada marcante degeneração hidrópico-vacuolar difusa. Os achados demonstraram nos caprinos cronicamente intoxicados, quadro clínico-patológico com características distintas do observado na forma aguda da intoxicação por P. marcgravii. Essas observações comprovam o risco para caprinos da ingestão da planta, mesmo que em pequenas doses, resultando no surgimento de quadro clínico e graves lesões ainda pouco conhecidas, e que poderiam ser confundidas com outras enfermidades.

  4. Geophysical Constraints on the Hydrogeologic and Structural Settings of the Gulf of Suez Rift-Related Basins: Case Study from the El Qaa Plain, Sinai, Egypt

    Energy Technology Data Exchange (ETDEWEB)

    Ahmed, M; Sauck, William; Sultan, Mohamed; Yan, Eugene; Soliman, Farouk; Rashed, Mohamed

    2013-11-09

    Groundwater has been identified as one of the major freshwater sources that can potentially meet the growing demands of Egypt’s population. Gravity data (from 381 ground gravity stations) were collected, processed, and analyzed together with the available aeromagnetic (800 line-km) data to investigate the hydrogeologic and structural settings, areal distribution, geometry, and water storage of the aquifers in El Qaa coastal plain in the southwest Sinai Peninsula, and to assess their longevity given projected extraction rates. Findings include (1) complete Bouguer anomaly and total magnetic intensity maps show two connected sub-basins separated by a narrow saddle with an average basin length of 43 km and an average width of 12 km; (2) two-dimensional modeling of both gravity and magnetic data indicates basin fill with a maximum thickness of 3.5 km; (3) using anomalous residual gravity, the volume of water in storage was estimated at 40–56 km3; and (4) progressive increases in extraction rates over time will deplete up to 40 % of the aquifers’ volume in 200–230 years and will cause the water quality to deteriorate due to seawater intrusion in 45 years. Similar geophysical exploration campaigns, if conducted over the entire coastal plains of the Red Sea and the Gulfs of Suez and Aqaba, could assist in the development of sound and sustainable management schemes for the freshwater resources in these areas. The adopted techniques could pave the way toward the establishment of sustainable utilization schemes for a much larger suite of similar aquifers worldwide.

  5. Varroa destructor Macula-like virus, Lake Sinai virus and other new RNA viruses in wild bumblebee hosts (Bombus pascuorum, Bombus lapidarius and Bombus pratorum).

    Science.gov (United States)

    Parmentier, Laurian; Smagghe, Guy; de Graaf, Dirk C; Meeus, Ivan

    2016-02-01

    Pollinators such as bumblebees (Bombus spp.) are in decline worldwide which poses a threat not only for ecosystem biodiversity but also to human crop production services. One main cause of pollinator decline may be the infection and transmission of diseases including RNA viruses. Recently, new viruses have been discovered in honeybees, but information on the presence of these in wild bumblebees is largely not available. In this study, we investigated the prevalence of new RNA viruses in Bombus species, and can report for the first time Varroa destructor Macula-like virus (VdMLV) and Lake Sinai virus (LSV) infection in multiple wild bumblebee hosts of Bombus pascuorum, Bombus lapidarius and Bombus pratorum. We sampled in 4 locations in Flanders, Belgium. Besides, we confirmed Slow bee paralysis virus (SBPV) in wild bumblebees, but no positive samples were obtained for Big Sioux river virus (BSRV). Secondly, we screened for the influence of apiaries on the prevalence of these viruses. Our results indicated a location effect for the prevalence of VdMLV in Bombus species, with a higher prevalence in the proximity of honeybee apiaries mainly observed in one location. For LSV, the prevalence was not different in the proximity or at a 1.5 km-distance of apiaries, but we reported a different isolate with similarities to LSV-2 and "LSV-clade A" as described by Ravoet et al. (2015), which was detected both in Apis mellifera and Bombus species. In general, our results indicate the existence of a disease pool of new viruses that seems to be associated to a broad range of Apoidae hosts, including multiple Bombus species. Copyright © 2015 Elsevier Inc. All rights reserved.

  6. Tradutores-interpretes de línguas de sinais: funções e atuação nas redes de ensinos

    Directory of Open Access Journals (Sweden)

    Adriane Melo de Castro Menezes

    2017-04-01

    Full Text Available Este artigo discute algumas condições funcionais de Tradutores-Intérpretes de Língua de Sinais (TILS que atuam no processo de escolarização de alunos surdos matriculados em escolas da rede regular de ensino. Empreendemos discussões sobre aspectos como vinculação funcional e salários, tentando perceber como estes sujeitos se sentem em seus lugares, e como estas questões afetam seu cotidiano. Fundamentado na teoria enunciativo-discursiva de Mikhail Bakhtin, este estudo teve como base principal da construção dos dados entrevistas presenciais, e complementarmente, um perfil com dados sobre formação, vinculação e experiência profissional. Além de anotações de elementos contextuais, relevantes para a compreensão dos sujeitos e seus discursos. Participaram 27 TILS, de treze municípios distribuídos em oito estados brasileiros. Quanto aos resultados, foi marcante que para os TILS não se trata apenas de nomenclaturas de e para vínculos funcionais. Estas questões têm desdobramentos, que podem incidir nas expectativas de atuação e representações sociais atreladas. Os dados também mostram um movimento social diverso para o atendimento das políticas públicas de educação e inclusão em vigor que, a depender de cada situação específica, podem comprometer, sobremaneira, a forma como estes TILS são vistos e sua integração-participação no coletivo institucional.

  7. America’s “Peculiar Children”: Authority and Christian Nationalism at Antebellum West Point

    Directory of Open Access Journals (Sweden)

    Michael Graziano

    2017-01-01

    Full Text Available This essay examines how the United States Military Academy at West Point developed an explicitly “federal” Christianity to help train the antebellum officers of the United States Army. It begins by examining how the Episcopal Church was quietly “established” at West Point, and how the church allied with the federal government and US Army to encourage a potent Christian nationalism that collapsed the sovereignty of the United States into the sovereignty of God. The case of West Point illustrates how federal officials, Army leaders, and Academy administrators understood religion as a central component of national security.

  8. West syndrome associated with administration of a histamine H1 antagonist, oxatomide.

    Science.gov (United States)

    Yamashita, Yushiro; Isagai, Takeo; Seki, Yoshitaka; Ohya, Takashi; Nagamitsu, Shinichiro; Matsuishi, Toyojiro

    2004-01-01

    We report a 4-month-old female infant who developed West syndrome eleven days after administration of a histamine H1 antagonist, oxatomide, for atopic dermatitis. It has been reported that some histamine H1 antagonists induce seizures in epileptic patients. The age, the interval between oxatomide administration, and the onset of West syndrome and its clinical course were similar to two previously reported 3-month-old infants with West syndrome associated with ketotifen administration. We should be cautious in using the histamine H1 antagonists, oxatomide and ketotifen, in young infants because such agents could potentially disturb the anticonvulsive central histaminergic system.

  9. Geospatial Analysis for the Determination of Hydro-Morphological Characteristics and Assessment of Flash Flood Potentiality in Arid Coastal Plains: A Case in Southwestern Sinai, Egypt

    Directory of Open Access Journals (Sweden)

    Ahmed Wahid

    2016-01-01

    Full Text Available Coastal plains with a unique geographic setting and renewable natural resources are promising for sustainable development; however, these areas may be subjected to some environmental hazards due to their geological setting. One of those hazards is the seasonal flash flood that can threaten existing and future development projects in such critical areas. Southwestern Sinai, Egypt, is a coastal plain that is characterized by complex geological setting an arid climate with seasonal rainfall which can result in a high runoff. The aim of this work is to model spatially the runoff amount and density related to flash flood development and to create a flash flood hazard map of the plain as an example of coastal plain in a desert environment with large and complex hydrologic setting. In this research, ASTER images are used to develop a digital elevation model (DEM and land use/land cover (LULC data sets of the study area. Geographic information system (GIS was used to perform runoff and ash potential flood analyses of the created databases and to show distributed runoff and flooding potential in spatial maps. A module was created in a GIS environment to develop a flash flood potential index map. It was clear that the main two factors controlling runoff amounts and flash flood potential in such kinds of areas are the slope and soil types. The final dataset map procedure by this work can be very helpful in land use planning by highlighting the areas subjected to flash floods.    Análisis Geoespacial para Determinar las Características Hidromorfológicas y Evaluar las Inundaciones Potenciales en Llanuras Costeras Áridas: Caso de Estudio en el Suroccidente de Sinaí, Egipto  Resumen Las llanuras costeras que poseen recursos naturales renovables y una configuración geográfíca única son promisorias para el desarrollo sostenible. Estas áreas, sin embargo, son objeto de algunas amenazas ambientales debido a su escenario geológico. Una de

  10. The status of marine biodiversity in the Eastern Central Atlantic (West and Central Africa)

    DEFF Research Database (Denmark)

    Polidoro, Beth A.; Ralph, Gina M.; Strongin, Kyle

    2017-01-01

    . This study provides the first comprehensive documentation of the presence, status, and level of extinction risk, based on IUCN Red List assessment methodology, for more than 1800 marine species, including all taxonomically described marine vertebrates (marine mammals, sea turtles, seabirds, fishes); complete...... clades of selected marine invertebrates (sea cucumbers, cone snails, cephalopods, lobsters, reef-building corals); and marine plants (mangroves, seagrasses). Approximately 8% of all marine species assessed in the ECA are in threatened categories, while 4% are listed as Near Threatened, 73% are Least...

  11. central t

    Directory of Open Access Journals (Sweden)

    Manuel R. Piña Monarrez

    2007-01-01

    Full Text Available Dado que la Regresión Ridge (RR, es una estimación sesgada que parte de la solución de la regresión de Mínimos Cuadrados (MC, es vital establecer las condiciones para las que la distribución central t de Student que se utiliza en la prueba de hipótesis en MC, sea también aplicable a la regresión RR. La prueba de este importante resultado se presenta en este artículo.

  12. Central sleep apnea

    Science.gov (United States)

    Sleep apnea - central; Obesity - central sleep apnea; Cheyne-Stokes - central sleep apnea; Heart failure - central sleep apnea ... Central sleep apnea results when the brain temporarily stops sending signals to the muscles that control breathing. The condition ...

  13. Prevalência de sobrepeso e obesidade e fatores associados em adolescentes na região centro-oeste do estado de São Paulo (SP, Brasil Prevalence of overweight and obesity, and associated factors in adolescents, at the central west area of the state São Paulo (SP, Brazil

    Directory of Open Access Journals (Sweden)

    Sílvia Helena de Carvalho Sales-Peres

    2010-10-01

    Full Text Available Objetivou-se avaliar a relação entre o Índice de Massa Corporal (IMC e o índice CPOD em 207 adolescentes de 12 anos, de 8 escolas públicas e particulares da região centro-oeste do estado de São Paulo. A amostra foi constituída por 380 adolescentes aos 12 anos, de ambos os gêneros, sendo examinados 207. Utilizou-se o índice CPOD, IMC para peso, medida de estatura, e aplicou-se questionário sobre hábitos alimentares, características antropométricas e atividade física. Quanto ao peso corpóreo, 55,93% apresentaram normal (G4, 35,59% de baixo peso (G3, 8,47% de pré-obesos (G2, nas escolas particulares. Nas públicas, 52,03% apresentaram normal, baixo peso 41,22%, pré-obesos 4,73% e obesos (G1 2,03%; não houve diferença significativa (p=0,45. Verificou-se que o CPOD nas escolas públicas foi 2,16 e nas particulares, 0,23 (pThe aim of the study was to evaluate the relationship between the Body Mass Index (BMI and the DMFT index, in 207 adolescents aged 12 years old, from 8 public and private schools of the central west area of São Paulo State. From a sample of 380 12 year-old adolescents, both genders, 207 were examined. We used the index DMFT, CBI for weight, measured of stature and applied a questionnaire about alimentary habits, characteristic anthropometrics and physical activity. Regarding body weight, 55.93% was normal, 35.59% had low weight, and 8.47% were pre-obese in private schools. In the public schools, 52.03% had normal weight, 41.22% had low weight, 4.73% were pre-obese and 2.03% were obese, without significant difference (p=0.45. The DMFT of public schools was 2.16, compared to 0.23 in private schools (p<0.05, with 39.2% of caries-free individuals in public schools and 88.1% in private schools. There was no correlation between the increase in BMI and the increase in DMFT. There was negative correlation between socioeconomic conditions and dental caries. It was concluded that, even though the pre-obese and obese

  14. Central Asian gas in Eurasian power game

    International Nuclear Information System (INIS)

    Cobanli, Onur

    2014-01-01

    Following the dissolution of the Soviet Union, various gas pipeline projects have been proposed to diversify transit routes and export markets of the landlocked Central Asian states. To evaluate the pipeline project's impact on the players' bargaining power, I apply the cooperate game theory to a quantitative model of the Eurasian gas trade and quantify the bargaining power structure via the Shapley value. Due to ample production capacities in Central Asia, I observe little strategic interaction between the West and China. Thus, demand competition with China is not necessarily a disadvantage for the West, and the Turkmenistan–China pipeline does not affect the impact of the westbound projects aiming Europe and Turkey. For Turkmenistan, i.e., the main supplier in the region, a link via the Caspian Sea to Turkey is the most beneficial westbound option. Although the projects carrying gas from Azerbaijan and Turkmenistan to Europe enjoy the European Commission's political support, they yield marginal benefits to the European consumers. Thanks to its transit position, Turkey collects a large share of the benefits in the East–West gas trade. - Highlights: • The Eurasian gas trade is represented as a cooperative game which is solved with the Shapley value. • There is no demand competition between the West and China for Central Asian gas. • For Turkmenistan the route via the Caspian Sea is the most beneficial westbound pipeline option. • Turkey emerges as a transit country and collects a large share of the benefits from the East–West gas trade. • A link to Europe yields marginal benefits to Turkmenistan and Europe

  15. Dropout and Functional Illiteracy Rates in Central Appalachia. Appalachian Data Bank Report #1.

    Science.gov (United States)

    Crew, B. Keith; And Others

    Computerized analysis of 1980 Census data documented educational deficiencies in 85 Central Appalachian counties of Kentucky, Tennessee, Virginia, and West Virginia. Dropout rates among youth ages 16-19 were found to be higher in Central Appalachian counties than in non-Central Appalachian counties, the poorest counties had the highest dropout…

  16. CENTRAL EUROPE: Role models

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    1993-12-15

    Hungary is one of the newcomers to the CERN fold, having joined in 1992. The country's contributions are naturally in line with its slender resources and are not as immediately visible as those of the major Western European Member States. However the approach used and its consequent successes provide a good role model for a smaller nation in an international research environment. This was reflected on 24 September at a meeting of the European Committee for Future Accelerators (ECFA) convened in Budapest, continuing an ECFA tradition of holding meetings in national centres to learn more about the physics programmes of different countries. This tradition started with visits to major West European Centres, but last year ECFA held a meeting in Warsaw, its first in a central European country. By far the largest Hungarian population centre, Budapest is also a hub for national research in this sector, with university centres and the KFKI Research Institute for Particle and Nuclear Physics of the National Academy of Sciences. However important research work is also carried out in the eastern city of Debrecen. Hungarians look back to the classic investigations of Eotvos early this century as the starting point of their national tradition in fundamental physics. (In the mid-80s, these experiments briefly came back into vogue when there was a suggestion of an additional 'fifth force' contribution to nuclear masses.)

  17. CENTRAL EUROPE: Role models

    International Nuclear Information System (INIS)

    Anon.

    1993-01-01

    Hungary is one of the newcomers to the CERN fold, having joined in 1992. The country's contributions are naturally in line with its slender resources and are not as immediately visible as those of the major Western European Member States. However the approach used and its consequent successes provide a good role model for a smaller nation in an international research environment. This was reflected on 24 September at a meeting of the European Committee for Future Accelerators (ECFA) convened in Budapest, continuing an ECFA tradition of holding meetings in national centres to learn more about the physics programmes of different countries. This tradition started with visits to major West European Centres, but last year ECFA held a meeting in Warsaw, its first in a central European country. By far the largest Hungarian population centre, Budapest is also a hub for national research in this sector, with university centres and the KFKI Research Institute for Particle and Nuclear Physics of the National Academy of Sciences. However important research work is also carried out in the eastern city of Debrecen. Hungarians look back to the classic investigations of Eotvos early this century as the starting point of their national tradition in fundamental physics. (In the mid-80s, these experiments briefly came back into vogue when there was a suggestion of an additional 'fifth force' contribution to nuclear masses.)

  18. Women's status and child survival in West Java, Indonesia.

    Science.gov (United States)

    Widayatun

    1991-03-01

    This study is introduced by a literature review of the concept of women's status, and related factors that determine infant and child mortality. Women's status is primarily defined by education, occupation and economic activity, which affect women's decision-making in the home and their independence in larger society. Cluster analysis was used to identify geographical patterns of standardized women's status variables among 20 regencies and 4 municipalities in West Java. Euclidian distances were computed between pairs of regencies across the 13 indicators. Pearson's correlations and multiple regression were used to compare associations between women's status variables and infant and child mortality, after controlling for economic development. Using data from the 1980 census, the study demonstrated large regional variations in women's status in West Java, with higher status in both the household and in society in the south and central highlands than in the north and west. Women's status is closely related to infant and child mortality, independent of the level of development. There was 1 notable exception, the municipality of Bogor, where infant and child mortality were higher than average rates for the cluster of areas with higher women's status. The results suggest that improved education, and increase in age at 1st marriage are key elements for improving the status of women in West Java.

  19. Central hypothyroidism

    Directory of Open Access Journals (Sweden)

    Vishal Gupta

    2011-01-01

    Full Text Available Central hypothyroidism is defined as hypothyroidism due to insufficient stimulation by thyroid stimulating hormone (TSH of an otherwise normal thyroid gland. It has an estimated prevalence of approximately 1 in 80,000 to 1 in 120,000. It can be secondary hypothyroidism (pituitary or tertiary hypothyroidism (hypothalamus in origin. In children, it is usually caused by craniopharyngiomas or previous cranial irradiation for brain tumors or hematological malignancies. In adults, it is usually due to pituitary macroadenomas, pituitary surgeries or post-irradiation. Fatigue and peripheral edema are the most specific clinical features. Diagnosis is established by the presence of normal to low-normal TSH on the background of low-normal thyroid hormones, confirmed by the thyrotropin releasing hormone stimulation test. Therapy includes use of levothyroxine titrated to improvement in symptomology and keeping free T4 in the upper limit of normal reference range.

  20. Avaliação da propagação de sinais de radiofrequência para tecnologia Zigbee em granja de frango de corte Evaluation of radiofrequency signals for Zigbee technology in poultry housing

    Directory of Open Access Journals (Sweden)

    Eduardo F. Nunes

    2011-01-01

    Full Text Available Visou-se, neste trabalho, realizar a predição de sinais de radiofrequência para a aplicação de Rede de Sensores Sem Fio (RSSF de monitoramento e controle em uma granja de frango de corte. A tecnologia de comunicação sem fio utilizada foi a Zigbee, com o padrão IEEE 802.15.4 compondo a camada física e de enlace. Desenvolveu-se, para automatizar a leitura de potências, um aplicativo em linguagem Delphi e, para a predição de sinais de RF (Radiofrequência, utilizou-se o modelo Shadowing adaptado. Todos os testes foram realizados em granja comercial, no Município de Tuiuti, estado de São Paulo, Brasil. Os resultados obtidos demonstraram boas condições de transmissão até 131 m, indicando que a tecnologia Zigbee é adequada, segundo a perspectiva de propagação de sinais, para a implementação de RSSF em granjas de frango de corte.This study aimed to conduct an evaluation for the implementation of Wireless Sensors Network (WSN of tracking and control in a poultry farm. The wireless technology used was Zigbee, with the IEEE 802.15.4 standard forming the physical layer and link layer. To automate the power measurement a DELPHI language software was developed and, for the prediction of RF signals, an adjusted model of the shadowing was used. All tests were performed in a commercial broiler farm, in the city of Tuiuti in the State of São Paulo, Brazil. The results of this study indicate that Zigbee technology is appropriate, from the perspective of signal propagation, to implement WSN in poultry housing.

  1. Avaliação clínica de sinais e sintomas da disfunção temporomandibular em crianças Clinical evaluation of signs and symptoms of children’s temporomandibular dysfunction

    Directory of Open Access Journals (Sweden)

    Eduardo César Almada Santos

    2006-04-01

    Full Text Available OBJETIVO: avaliar a freqüência dos sinais e sintomas, dos hábitos parafuncionais e das características oclusais de 80 crianças, pacientes da clínica de Ortodontia Preventiva da Faculdade de Odontologia de Araçatuba - UNESP. METODOLOGIA: o exame clínico constituiu-se de avaliação das características oclusais do paciente e observação da presença de hábitos parafuncionais. As crianças foram submetidas a uma entrevista, supervisionadas pelos pais, cujas perguntas relacionavam-se com os sinais e sintomas da disfunção. RESULTADOS E CONCLUSÕES: concluiu-se que os sinais e sintomas mais freqüentes foram o hábito de ranger os dentes, dores de cabeça e ruídos na ATM. A onicofagia e o bruxismo foram os hábitos parafuncionais mais prevalentes. A freqüência de sinais e sintomas da disfunção temporomandibular pode ser verificada em crianças por meio da entrevista e exame clínico minucioso.AIM: to assess the frequency of signs and symptoms of the parafunctional habits and of the occlusal characteristics of 80 children, patients of the Preventive Orthodontics Clinic at Araçatuba’s Faculty of Dentistry - UNESP. METHODS: the clinical test comprised evaluation of the patient’s occlusal characteristics and observation of the presence of parafunctional habits. The children were submitted to a parent-supervised interview, whose questions were related to the signs and symptoms of the dysfunction. RESULTS AND CONCLUSION: we concluded that the most frequent signs and symptoms were teeth-grinding, headache and ATM noises. The most prevalent parafunctional habits were onicophagy and bruxism. The frequency of signs and symptoms of temporomandibular dysfunction can be noticed in children through interview and a detailed clinical test.

  2. Categorização funcional trófica das comunidades de macroinvertebrados de dois reservatórios na região Centro-Oeste do Estado de São Paulo, Brasil - DOI: 10.4025/actascibiolsci.v31i1.331 Functional feeding groups of benthics macroinvertebrates communities of two lentic systems in the central west region of São Paulo State - DOI: 10.4025/actascibiolsci.v31i1.331

    Directory of Open Access Journals (Sweden)

    Jandira Liria Biscalquini Talamoni

    2009-04-01

    Full Text Available A utilização do conceito de guilda pode ser útil para a categorização funcional trófica de comunidades, pois não há obrigatoriedade da identificação dos organismos em nível de espécie, nem de tratar cada espécie como uma entidade separada. O objetivo deste estudo foi analisar os grupos funcionais tróficos (coletores-catadores, coletores-filtradores, fragmentadores, predadores e raspadores das comunidades de macroinvertebrados de dois reservatórios da região Centro-Oeste do Estado de São Paulo, Brasil. As amostragens foram realizadas nos períodos chuvoso (março/abril - 2001 e de seca (julho/agosto - 2001 e os dados obtidos indicam que os coletores-catadores foram a guilda mais frequente. Este fato sugere grande importância da matéria orgânica como recurso alimentar na dieta dos macroinvertebrados analisados.The aim of this study was analyze the functional feeding groups (collectors, shredders, predators and grazer-scrapers of benthic macroinvertebrates communities in two lentic systems in the central west region of São Paulo State. The samples were realized in rainy (March/April - 2001 and dry (July/August - 2001 seasons. The results obtained contribute for the best knowledgement of benthic macroinvertebrate community on those two systems.

  3. Towards a better Understanding and reducing of the Groundwater Contamination in Saint Katherine area, Sinai, Egypt; Using Remote Sensing and Chemical Analyses

    Science.gov (United States)

    Fekri, A.; Mohamed, L.

    2017-12-01

    Egypt has a big water shortage problem because of the high population density and the lack of the surface water resources. So it was necessary to identify additional clean water resources and among all of the other alternative water resources, groundwater should be the most appropriate choice for Egyptians to explore and develop. Saint Katherine area is located in the highest mountainous area of southern Sinai including parallel ridges separated by deep wadis which have been cut along faults and fractures and enlarged through intense precipitation events during the old pluvial periods. Katherina volcanics and the surrounding granitic rocks in Saint Katherine area, which are generally impermeable except through fractures such as faults, joints and shear zones, are recharged with 50 mm annual precipitation. The groundwater recharge find a way through sets of interconnected joints to feed the existing wells in the low-lying fault zones. After the St. Katherine Protectorate was activated in 1996, public awareness of the possible harmful impact of the existing inadequate sewage disposal increased. The groundwater contamination (nitrates and coliform bacteria) in St. Katherine area causes health problems such as diarrhea and skin infections due to the use of well water for household purposes. This study will focus on; monitoring, evaluating and cleaning up the contaminant distribution in St. Katherine groundwater, using a conceptual model for the fault control on the groundwater flow in fractured basement aquifers to understand the possible pathways for the contaminated groundwater (using remote sensing data), and by preparing disinfectant tracers. It is known that Coliform bacteria could be treated by using Sulfanilamide drug, but in this study we will modify the Sulfanilamide compounds which are considered as ligands containing N, O, S donor atoms that could be used to uptake the transition metals, and produce a colored complex. The produced complex will work as a

  4. Late Neoproterozoic layered mafic intrusion of arc-affinity in the Arabian-Nubian Shield: A case study from the Shahira layered mafic intrusion, southern Sinai, Egypt

    Energy Technology Data Exchange (ETDEWEB)

    Azer, M.K.; Obeid, M.A.; Gahalan, H.A.

    2016-07-01

    The Shahira Layered Mafic Intrusion (SLMI), which belongs to the late Neoproterozoic plutonic rocks of the Arabian-Nubian Shield, is the largest layered mafic intrusion in southern Sinai. Field relations indicate that it is younger than the surrounding metamorphic rocks and older than the post-orogenic granites. Based on variation in mineral paragenesis and chemical composition, the SLMI is distinguished into pyroxene-hornblende gabbro, hornblende gabbro and diorite lithologies. The outer zone of the mafic intrusion is characterized by fine-grained rocks (chilled margin gabbroic facies), with typical subophitic and/or microgranular textures. Different rock units from the mafic intrusion show gradational boundaries in between. They show some indications of low grade metamorphism, where primary minerals are transformed into secondary ones. Geochemically, the Shahira layered mafic intrusion is characterized by enrichment in LILE relative to HFSE (e.g. Nb, P, Zr, Ti, Y), and LREE relative to HREE [(La/Lu)n= 4.75–8.58], with subalkaline characters. It has geochemical characteristics of pre-collisional arc-type environment. The geochemical signature of the investigated gabbros indicates partial melting of mantle wedge in a volcanic-arc setting, being followed by fractional crystallization and crustal contamination. Fractional crystallization processes played a vital role during emplacement of the Shahira intrusion and evolution of its mafic and intermediate rock units. The initial magma was evolved through crystallization of hornblende which was caused by slight increasing of H2O in the magma after crystallization of liquidus olivine, pyroxene and Ca-rich plagioclase. The gabbroic rocks crystallized at pressures between 4.5 and 6.9kbar (~15–20km depth). Whereas, the diorites yielded the lowest crystallization pressure between 1.0 to 4.4Kbar (<10km depth). Temperature was estimated by several geothermometers, which yielded crystallization temperatures ranging from 835

  5. Reference Range of Functional Data of Gated Myocardial Perfusion SPECT by Quantitative Gated SPECT of Cedars-Sinai and 4D-MSPECT of Michigan University

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Do Young; Kim, Moo Hyun; Kim, Young Dae [College of Medicine, Univ. of Donga, Pusan (Korea, Republic of)

    2003-07-01

    Various programs have been developed for gating of myocardial perfusion SPECT. Among the those program, the most popular program is the Quantitative Gated SPECT (QGS)? developed by Cedars-Sinai hospital and most recently released program is 4D-MSPECT? developed by university of Michigan. It is important to know the reference range of the functional data of gated myocardial perfusion SPECT because it is necessary to determine abnormality of individual patient and echocardiographic data is different from those of gated SPECT. Tc-99m MIBI gated myocardial perfusion SPECT image was reconstructed by dual head gamma camera (Siemens, BCAM, esoft) as routine procedure and analyzed using QGS? and 4D-MSPECT? program. All patients (M: F=9: 18, Age 69{+-}9 yrs) showed normal myocardial perfusion. The patients with following characteristics were excluded: previous angina or MI history, ECG change with Q wave or ST-T change, diabetes melitius, hypercholesterolemia, typical chest pain, hypertension and cardiomyopathy. Pre-test likelihood of all patients was low. (1) In stress gated SPECT by QGS?, EDV was 73{+-}25 ml, ESV 25{+-}14 ml, EF 67{+-}11 % and area of first frame of gating 106.4{+-}21cm{sup 2}. In rest gated SPECT, EDV was 76{+-}26 ml, ESV 27{+-}15 ml, EF 66{+-}12 and area of first frame of gating 108{+-}20cm{sup 2}. (2) In stress gated SPECT by 4D-MSPECT?, EDV was 76{+-}28 ml, ESV 23{+-}16 ml, EF 72{+-}11 %, mass 115{+-}24 g and ungated volume 42{+-}15 ml. In rest gated SPECT, EDV was 75{+-}27 ml, ESV 23{+-}12 ml, EF 71{+-}9%, mass 113{+-}25g and ungate dvolume 42{+-}15 ml, (3) s-EDV, s-EF, r-ESV and r-EF were significantly different between QGS? and 4D-MSPECT? (each p=0.016, p<0.001. p=0.003 and p=0.001). We determined the normal reference range of functional parameters by QGS? and 4D-MSPECT? program to diagnose individually the abnormality of patients. And the reference ranges have to adopted to be patients by each specific gating program.

  6. Língua brasileira de sinais - LIBRAS na formação de professores: o que dizem as produções científicas

    Directory of Open Access Journals (Sweden)

    Suelen Santos Monteiro

    2013-09-01

    Full Text Available O presente texto tem como ênfase um estudo de levantamento bibliográfico em que articula resultados parciais de duas pesquisas de mestrado, em andamento. Os focos das investigações pautam-se na compreensão do trabalho da Língua Brasileira de Sinais (LIBRAS na Educação Básica e sobre a inserção dela como disciplina obrigatória nos cursos de formação de professores nas licenciaturas. O objetivo é apresentar o resultado do estudo de levantamento bibliográfico que evidencia como tem sido desenvolvido o ensino para pessoas com deficiência auditiva/surdez na educação básica e no ensino superior por meio do uso da LIBRAS, bem como compreender o que dizem as produções sobre a legislação específica para garantia dos direitos dessas pessoas no cenário educacional. A pesquisa foi realizada a partir das produções das Reuniões Anuais da Associação Nacional de Pós-Graduação e Pesquisa em Educação – ANPED e do Banco de Teses e Dissertações da CAPES, a partir do ano de 2005. As primeiras análises apontam para a falta de preparação dos professores no que diz respeito à educação da pessoa com deficiência auditiva/surdez, sob a alegação de ainda não possuírem formação adequada para o trabalho pedagógico que atenda efetivamente esse público e, em muitos casos informam não conhecer e não fazer uso da LIBRAS. Tais apontamentos influenciam diretamente na prática pedagógica. Nessa perspectiva, acreditamos que o desafio é pensar na implementação do decreto lei 5.626/2005 para que os cursos de licenciatura preparem melhor os futuros professores, de modo a possibilitar um ensino de melhor qualidade para todos os alunos.

  7. Colapsibilidade da Veia Cava Inferior e sinais e sintomas de insuficiência cardíaca: novos insights e possíveis associações

    Directory of Open Access Journals (Sweden)

    Renato De Vecchis

    2012-06-01

    Full Text Available FUNDAMENTO: Nos pacientes com Insuficiência Cardíaca Crônica (ICC foram propostas medidas ultrassonográficas do Índice de Colapsibilidade da Veia Cava Inferior (ICVCI para obter uma avaliação e classificação minuciosa da congestão hemodinâmica. OBJETIVO: A finalidade deste estudo era correlacionar os achados no exame físico com o ICVCI em pacientes com ICC. MÉTODOS: De acordo com um projeto de coorte retrospectivo, analisamos 54 pacientes com ICC, direita ou biventricular, classe NYHA III. O plano era determinar se alguma faixa de ICVCI basal poderia predizer uma persistência ou agravamento da congestão clínica achada no final do acompanhamento subsequente (isto é, após 1-2 meses do tratamento oral otimizado. Para essa finalidade, os pacientes foram subdivididos em três grupos de acordo com o valor de ICVCI basal: ≤ 15% (13 pts, 16 - 40% (21 pts e > 40% (20 pts. Diversos critérios clínicos de congestão foram comparados por meio dos três grupos e incorporados subsequentemente ao modelo multivariado de Cox. RESULTADOS: Preditores multivariados de alto escore de congestão foram distensão da veia jugular (FC: 13,38 95% IC: 2,13 - 84 p = 0,0059 e estertores (FC: 11 95% C.I : 1,45 - 83,8 p = 0,0213. O ICVCI ≤ 15% esteve sempre associado com um alto escore de congestão na segunda visita; todavia, o ICVCI o ≤ 15% não predisse um alto escore de congestão na segunda visita. CONCLUSÃO: No âmbito da ICC, um baixo ICVCI não predisse, em forma confiável, um elevado escore de congestão. Não obstante, o conjunto com ICVCI ≤ 15% sempre se achou associado com sinais e sintomas de uma ICC descompensada, tanto do lado direito como do esquerdo. (Arq Bras Cardiol. 2012; [online].ahead print, PP.0-0

  8. Cover Crops in West Africa

    International Development Research Centre (IDRC) Digital Library (Canada)

    Sasakawa Global 2000 — Bénin, 04 BP 1091, Cotonou, Benin ..... and West African farmers have been remarkably creative with GMCCs, developing and ...... Journal d'agriculture tropicale et de botanique appliquée, 4(5). ...... political; the best approach is therefore thought to be to accept this limitation and work with it.

  9. West Virginia's forest resources, 2009

    Science.gov (United States)

    R.H. Widmann; G.W. Cook

    2011-01-01

    This publication provides an overview of forest resource attributes for West Virginia based on an annual inventory conducted by the Forest Inventory and Analysis (FIA) program at the Northern Research Station of the U.S. Forest Service. These estimates, along with web-posted core tables, will be updated annually. For more information, please refer to page 4 of this...

  10. West Virginia's forest resources, 2010

    Science.gov (United States)

    R.H. Widmann; G.W. Cook

    2011-01-01

    This publication provides an overview of forest resource attributes for West Virginia based on an annual inventory conducted by the Forest Inventory and Analysis (FIA) program at the Northern Research Station of the U.S. Forest Service. These estimates, along with web-posted core tables, will be updated annually. For more information please refer to page 4 of this...

  11. West Virginia's forest resources, 2008

    Science.gov (United States)

    R.H. Widmann; B.J. Butler; G.W. Cook

    2010-01-01

    This publication provides an overview of forest resource attributes for West Virginia based on an annual inventory conducted by the Forest Inventory and Analysis (FIA) program at the Northern Research Station of the U.S. Forest Service. These estimates, along with web-posted core tables, will be updated annually. For more information please refer to page 4 of this...

  12. WEST AFRICAN JOURNAL OF MEDICINE

    African Journals Online (AJOL)

    user1

    WEST AFRICAN JOURNAL OF MEDICINE. Tuberculous Lymphadenitis: Skin Delayed-Type Hypersensitivity Reaction and. Cellular Immune Responses. Lymphadénite Tuberculeuse: Peau Réaction d'hypersensibilité Retardée de Type et les Réponses. Immunitaires Cellulaires. E. A. G. Khalil†*, A. A. Elnour†, A. M. Musa†, ...

  13. Anurans Collected in West Malaysia

    DEFF Research Database (Denmark)

    Cedhagen, Tomas

    1997-01-01

    Distributional records and natural history noles are given for anurans collected in West Malaysia 1976. Rano baramica was observed when it was caught by an Ahaetulfa nasula (Serpentes: Colubridae). Rhacophorus leucomystax, Limnonectes limnociulris and Microhyla heymonsi were all found al night on...

  14. Primary Schooling in West Bengal

    Science.gov (United States)

    Sen, Amartya

    2010-01-01

    With his Nobel Prize award money, Amartya Sen set up the Pratichi Trust which carries out research, advocacy and experimental projects in basic education, primary health care, and women's development in West Bengal and Bangladesh. Professor Sen himself took active interest in this work--helping set the agenda, looking at the evidence from…

  15. Verbal aspects in West Greenlandic

    DEFF Research Database (Denmark)

    Trondhjem, Naja Blytmann

    2017-01-01

    In this article, lexical aspectual types in West Greenlandic are investigated in the five aspectual types, states, achievements, semelfactives, activities and accomplishments. It is shown that derivational verbalizing affixes include aspectual type congruent with the lexical aspect and how the as...

  16. West Nile Virus Neuroinvasive Disease

    Directory of Open Access Journals (Sweden)

    J Gordon Millichap

    2009-07-01

    Full Text Available Epidemiological features of West Nile Virus (WNV disease among children (<18 years of age reported to the Centers for Disease Control and Prevention from 1999 through 2007 were analyzed and compared with those of adult WNV neuroinvasive disease (WNND, in a study at CDC&P, Fort Collins, CO.

  17. Upgrading of the West Area

    CERN Multimedia

    1983-01-01

    The rejigged main hall (EHW1) in the West Area: on background, below the crane, is the brown yoke of the Omega magnet which had been resited. The upgrading was completed by the time in July when 400 GeV protons arrived. See Annual Report 1983 p. 107.

  18. West Europe without Nuclear Energy

    International Nuclear Information System (INIS)

    1999-01-01

    This document contains basic conclusions of discussion if West Europe can exist without nuclear energy: 1. Presumptions for the nuclear energy removal 2. Regional and international consulting 3. Economic competition 4. Role of the nuclear energy 5. Situation in the energetic industry 6. Costs, safety and public relations 7. Energy policy

  19. The West in Early Cinema

    NARCIS (Netherlands)

    Verhoeff, Nanna

    2006-01-01

    Verhoeff investigates the emergence of the western genre, made in the first two decades of cinema (1895-1915). By analyzing many unknown and forgotten films from international archives she traces the relationships between films about the American West, their surrounding films, and other popular

  20. Cerebral gigantism with West syndrome.

    Science.gov (United States)

    Ray, Munni; Malhi, P; Bhalla, A K; Singhi, P D

    2003-07-01

    A case of cerebral gigantism (Sotos syndrome) with West syndrome in a one-year-old male child is reported. The case had a large stature, typical facies and neurodevelopmental delay along with infantile spasms, which were refractory to treatment with valproate and clonazepam.

  1. West African Journal of Radiology: Journal Sponsorship

    African Journals Online (AJOL)

    West African Journal of Radiology: Journal Sponsorship. Journal Home > About the Journal > West African Journal of Radiology: Journal Sponsorship. Log in or Register to get access to full text downloads.

  2. Team West Virginia/Rome Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Korakakis, Dimitris [West Virginia Univ., Morgantown, WV (United States)

    2017-04-10

    Overall, the team, West Virginia University (WVU) and University of Rome Tor Vergata (UTV), has a goal of building an attractive, low-cost, energy-efficient solar-powered home that represents both the West Virginian and Italian cultures.

  3. Deglacial History and Paleoceanography of the Umanak System, West Greenland

    DEFF Research Database (Denmark)

    Sheldon, Christina; Jennings, Anne; Andrews, John

    2012-01-01

    A record of Greenland Ice Sheet (GIS) and ice-stream history, ice-sheet ocean interactions and paleoclimate from the Last Glacial Maximum to present is preserved in the sediments of the Umanak fjord, shelf trough and trough mouth fan system of central West Greenland. The objective of this study....... This evidence of Atlantic Water carried in the WGC precedes lithological evidence of ice stream retreat from the shelf edge (an influx of coarse IRD beginning 62 cm above the first Atlantic Water assemblage) indicating the presence of the WGC at the shelf edge prior to initial deglaciation. Both the slope...... is to document the timing and rate of ice retreat and the role of the West Greenland Current (WGC) in initiating or sustaining ice retreat. During cruise JR175 of the UK ship RRS James Clark Ross in 2009, sediment cores and geophysical data were collected from the Umanak System to document the glacial history...

  4. Desdobramentos foucaultianos sobre a relação de ensino do intérprete de língua de sinais educacional

    Directory of Open Access Journals (Sweden)

    Vanessa Regina de Oliveira Martins

    2017-01-01

    Full Text Available o presente trabalho, tem como objetivo discutir e analisar trajetórias, atuações e relações de ensino em que temos presente a figura do intérprete de língua de sinais educacional incluído na dinâmica escolar: sua emergência na escola, os discursos sobre sua função e as práticas decorrentes de sua atuação tradutória cotidiana - as implicações que há no ensino de surdos, os modos como se entende tal função. A tese tem como objetivo teorízar e afirmar pelo menos três modos de mestria presentes em variadas salas de aula, especificamente nas que contam com a presença de pessoas surdas e de intérpretes de língua de sinais educacional. Os modos são os seguintes: o mestre explicador, o revelador e o emissor de signos. Em cada análise, faço um aprofundamento das possíveis relações interpessoais entre os sujeitos em dada cena, sendo, portanto, relações de docência a partir dessas proposições. O olhar se dá nos espaços propostos e configurados a partir de uma relação docente, e com isso, as análises realizadas passam pelo olhar conceitual de Michel Foucault, tendo como marca as relações de subjetividades no ocidente. Para tal empreitada, buscaram-se, nos estudos foucaultianos os tipos de mestria possíveis, apresentados pelo autor na obra A hermenêutica do sujeito. Isso se fez para afirmar a necessidade de um retorno a uma relação antiga de ensino: um mestre que se ocupa com o processo e não com o yroduto; uma mestria que se faz não pela condução ao modelo, mas na presença do "estar com o outro". Assim, conceitos de Gilles Deleuze e Michel Foucault são trazidos e combinados entre si para complementar o que se afirma como mestria ativa, ou seja, uma posição-mestre, que possibilita efeito de relações parresiásticas de ensino. A posição-mestre será baliza da pela relação conceitual existente entre ela e a função-educador - conceito desenvolvido na tese de doutoramento de Carvalho (2008. Nesse

  5. 75 FR 17463 - Key West Bank, Key West, Florida; Notice of Appointment of Receiver

    Science.gov (United States)

    2010-04-06

    ... DEPARTMENT OF THE TREASURY Office of Thrift Supervision Key West Bank, Key West, Florida; Notice... section 5(d)(2) of the Home Owners' Loan Act, the Office of Thrift Supervision has duly appointed the Federal Deposit Insurance Corporation as sole Receiver for Key West Bank, Key West, Florida, (OTS No...

  6. Population Structure of West Greenland Narwhals

    DEFF Research Database (Denmark)

    Riget, F.; Dietz, R.; Møller, P.

    The hypothesis that different populations of narwhals in the West Greenland area exist has been tested by different biomarkers (metal and organochlorine concentrations, stable isotopes and DNA). Samples of muscle, liver, kidney, blubber and skin tissues of narwhals from West Greenland have been...... isotopes could not support the population structure with two West Greenland populations suggested by the genetic study....

  7. Regionalizing Telecommunications Reform in West Africa

    OpenAIRE

    World Bank

    2007-01-01

    This report assesses the potential gains from regionalized telecommunications policy in West Africa. The report seeks to assist officials in the Economic Community of West African States (ECOWAS), the West African Telecommunications Regulators Assembly (WATRA) and member states in designing an effective regional regulatory process. To this end, the report: (i) discusses how regional coop...

  8. Perspectiva metodológica para análise do discurso verbal, de sinais e imagético em telejornais universitários voltados à acessibilidade

    Directory of Open Access Journals (Sweden)

    Michele Negrini

    2016-09-01

    Full Text Available O telejornalismo vem sofrendo transformações através da massificação da web, dos novos paradigmas técnicos e dos formatos do jornalismo na TV, além da construção e do papel do telejornalismo universitário. O telejornal universitário, na atualidade, tem se reconfigurado para abranger públicos amplos e diversos. A democratização da informação é uma oportunidade para as produções do telejornalismo universitário, que antes ficavam restritas à sala de aula e que agora podem ser vistas por pessoas no mundo inteiro. Diante disso, o presente artigo propõe a apresentação de um esboço metodológico para análise dos discursos verbal, de sinais e imagético de telejornais universitários voltados à acessibilidade, mais especificamente aos que incluem a Linguagem Brasileira de Sinais.

  9. Algumas considerações sobre a interface entre a Língua Brasileira de Sinais (LIBRAS e a Língua Portuguesa na construção inicial da escrita pela criança surda

    Directory of Open Access Journals (Sweden)

    Renata Castelo Peixoto

    Full Text Available O artigo propõe uma reflexão psicolingüística sobre as construções conceituais de crianças surdas no que diz respeito à escrita. O trabalho revela, a partir de um diálogo com as idéias de Emília Ferreiro e Ana Teberosky, que a psicogênese da escrita vivenciada por crianças surdas, que têm a língua de sinais como primeira língua e língua de instrução, se desenrola de forma diferente ao que é vivido por crianças ouvintes em processo inicial de construção da escrita. As principais especificidades dessa aquisição relacionam-se: a não-fonetização da escrita, a uma intensa exploração dos aspectos viso-espaciais da escrita e ao uso dos parâmetros fonológicos da língua de sinais como elemento regulador e organizador da escrita. Tais peculiaridades exigem, portanto, que a escola e o professor alfabetizador revejam suas concepções sobre o processo de escrita no surdo, pensando em (novas práticas pedagógicas que considerem a realidade bilíngüe e sua relação não-sonora com a escrita.

  10. Verbo-visualidade no gênero jornalístico televisivo: leituras para a construção de estratégias de interpretação da língua de sinais

    Directory of Open Access Journals (Sweden)

    Kathryn Marie Pacheco Harrison

    2013-11-01

    Full Text Available Neste artigo, apresentamos uma análise das marcas verbo-visuais constitutivas do gênero jornalístico televisivo e suas contribuições para a prática de interpretação da libras (língua brasileira de sinais nesse gênero. A partir da análise da composição verbo-visual das produções telejornalísticas “Jornal Hoje”, “Jornal Nacional” e da revista eletrônica televisiva “Fantástico”, todas exibidas pela Rede Globo de Televisão, será discutido como o tradutor intérprete de libras/português (TILSP pode, em seu ato enunciativo-discursivo de mediação entre sujeitos falantes e não falantes da língua de sinais, construir um discurso de natureza verbo-visual coerente com o pressuposto fundante da televisão: a relação entre texto (independente da sua dimensão material verbal e imagem.

  11. Reflexões sobre a aquisição da escrita da língua portuguesa por criança surda usuária da Língua Brasileira de Sinais

    Directory of Open Access Journals (Sweden)

    Maria Cristina da Cunha Pereira

    2016-04-01

    Full Text Available Este trabalho apresenta reflexões sobre a aquisição da escrita da língua portu-guesa por uma criança surda, filha de pais ouvintes, ao longo da educação infantil e nos primeiros anos do ensino fundamental. A criança adquiriu a Língua Brasileira de Sinais (Libras na escola na interação na interação com adultos surdos e ouvintes. Visando à aquisição da escrita, a criança foi inse-rida, desde a Educação Infantil, em práticas discursivas escritas, mediadas pela língua de sinais. A análise de pro-duções escritas da criança evidencia um processo semelhante ao observado em crianças ouvintes, embora os resultados sejam diferentes devido ao fato de ela ter usado a visão para elaborar suas hipóteses sobre o funcionamento linguístico-discursivo da língua portu-guesa escrita.

  12. Violências contra mulheres por parceiro íntimo em área urbana economicamente vulnerável, Brasília, DF Violencias contra mujeres por pareja íntima en área urbana económicamente vulnerable, Brasilia, Brasil Intimate partner violence against women in an economically vulnerable urban area, Central-West Brazil

    Directory of Open Access Journals (Sweden)

    Leides Barroso Azevedo Moura

    2009-12-01

    con 58 preguntas desarrollado por la Organización Mundial de la Salud. Fueron analizadas las prevalencias de violencia física, psicológica y sexual. Las variables independientes consideradas fueron características sociodemográficas de la mujer, de contexto familiar y comunitario así como las sociodemográficas de la pareja, de comportamiento (frecuencia de uso de bebidas o drogas ilícitas y relación extraconyugal. RESULTADOS: La prevalencia de violencia psicológica fue la más alta: 80,2% (n=223 de las mujeres entrevistadas relataron por lo menos un acto en el decorrer de la vida y 50% (n=139 en los últimos 12 meses. La prevalencia de violencia física a lo largo de la vida fue (58,6% y en los últimos 12 meses (32%, mientras que la prevalencia de mujeres que sufrieron violencia sexual fue de 28,8% y 15,5%, respectivamente. CONCLUSIONES: Las altas prevalencias de las violencias muestran la magnitud de la vulnerabilidad y de las agresiones practicadas contra mujeres en las relaciones con parejas íntimas.OBJECTIVE: To estimate the prevalence of gender-based controlling behavior and types of violence committed by intimate partners against women living in an economically vulnerable area. METHODS: A cross-sectional study was performed with 278 women aged between 15 and 49 years, who had had at least one male intimate partner in their lives and lived in a metropolitan area of the city of Brasília, Central-West Brazil, in 2007. Systematic random sampling process was used. The research instrument consisted of a questionnaire with 58 questions, developed by the World Health Organization. Prevalences of physical, psychological and sexual violence were analyzed. Independent variables considered were women's sociodemographic, family and community context characteristics, in addition to their partners' sociodemographic and behavior characteristics (frequency of alcohol or illicit drug use and extra-marital relationship. RESULTS: The highest prevalence was that of

  13. Fatores associados à atividade física em adultos, Brasília, DF Factores asociados con la actividad física en adultos, Brasilia, Brasil Factors associated with physical activity in adults in Brasília, Central-West Brazil

    Directory of Open Access Journals (Sweden)

    Priscilla Marcondelli Dias Thomaz

    2010-10-01

    seleccionados aleatoriamente. Datos sociodemográficos, peso y altura fueron obtenidos durante una entrevista en domicilio. El cuestionario internacional de actividad física (Ipaq, versión corta, fue utilizado para la medición de la actividad física. Para evaluarse el efecto del sexo, índice de masa corporal (IMC, clasificación socioeconómica y estado civil sobre el escore de actividad física, se realizó análisis de regresión lineal multivariable. RESULTADOS: La mayoría de las muestras estaba compuesta por mujeres (57%. El porcentaje de individuos que alcanzó 150 minutos semanales de práctica de actividad física fue de 52% (IC 95%: 47;56 y de inactivos de 21,5% (IC 95%: 17,8;25,3. Solamente en los hombres se observó asociación inversa entre actividad física e IMC. Los tipos de actividades físicas relatados difirieron entre los sexos: entre mujeres, caminar y hacer servicios domésticos; entre los hombres, pedalear, correr, nadar y hacer ejercicios con pesos. Hubo una fuerte asociación con el escore de actividad física: cuanto mayor el IMC, menor el escore de actividad física. CONCLUSIONES: La parcela de individuos inactivos en Brasilia puede ser considerada baja, en contraste con estimaciones de otras ciudades brasileras. Diferencias entre sexos con relación a IMC y escore de actividad física están asociadas al tipo de actividad física practicada.OBJECTIVE: To describe physical activity practice in adults and to identify associated factors. METHODS: A cross-sectional study was performed with cluster sampling from the four areas of the city of Brasília, Central-West Brazil, in 2006-2007. A sample comprised of 469 adults was obtained from 250 randomly selected households. Sociodemographic data, weight and height were obtained during a household interview. The short version of the International Physical Activity Questionnaire (IPAQ was used to measure physical activity. A multivariate linear regression analysis was made to assess the effect of sex, body

  14. Evaluation of the signs and symptoms of temporomandibular disorders in children with headaches Avaliação dos sinais e sintomas de disfunções temporomandibulares em crianças com cefaléias

    Directory of Open Access Journals (Sweden)

    Fernanda Mara de Paiva Bertoli

    2007-06-01

    Full Text Available PURPOSE: The purpose of this study was to evaluate the presence of signs and symptoms of temporomandibular disorders (TMD in children with headaches in a neuropediatric ambulatory. METHOD: Fifty patients between 4 and 18 years of age were examined: 31 had headaches (24 migraine, 4 tension type and 3 unspecific headache and 19 formed the control group. The data collection was comprised of a structured questionnaire answered by the children's parents, and a subjective evaluation about the children’s emotional state. A specific questionnaire for TMD was applied, followed by a clinical dental examination of the children. As signs of TMD, mouth opening limitation, mandibular trajectory deviation in opening mouth, and joint noise were considered. As symptoms, pain on palpation of masseter and temporal muscles and on the poromandibular joint. RESULTS: A significant increase in signs and symptoms of TMD was found in patients with headaches when compared to the control group. There was also a significant difference in signs and symptoms of TMD according to age (increased with age and emotional state (tense> calm. CONCLUSION: There is a higher frequency of TMD in pediatric patients with headaches; thus, it is important to look for TMD signs and symptoms in this population.OBJETIVO: Avaliar a presença de sinais e sintomas de disfunção temporomandibular (DTM em crianças com cefaléias em um ambulatório de neuropediatria. MÉTODO: Foram examinados 50 pacientes com idade entre 4 e 18 anos, 31 com cefaléias (24 com enxaqueca, 4 com cefaléia tensional e 3 com cefaléia inespecífica e 19 do grupo controle. Os dados compreenderam um questionário estruturado respondido pelos pais e uma avaliação subjetiva sobre o estado emocional das crianças. Foi aplicado um questionário específico para DTM e realizado um exame clínico dental. Foram considerados como sinais de DTM: limitação da abertura bucal, desvio da trajetória ao abrir a boca e ru

  15. Assessment of oxidative stress indices in a marine macro brown alga Padina tetrastromatica (Hauck) from comparable polluted coastal regions of the Arabian Sea, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Maharana, D.; Jena, K.B.; Pise, N.M.; Jagtap, T.G.

    , and antioxidant defences were measured as catalase (CAT), glutathione S-transferase (GST) and ascorbic acid (AsA), in order to understand their dissimilarity with respect to pollution levels from selective locations along the central west coast of India...

  16. Revisiting the West Clearwater Lake Impact Structure, Canada

    Science.gov (United States)

    Osinski, G. R.; Brunner, A.; Collins, G.; Cohen, B. A.; Coulter, A.; Elphic, R.; Grieve, R. A. F.; Hodges, K.; Horne, A.; Kerrigan, M.

    2015-01-01

    The West and East Clearwater Lake impact structures are two of the most distinctive and recognizable impact structures on Earth. Known regionally as the "Clearwater Lake Complex", these structures are located in northern Quebec, Canada (56 deg 10 N, 74 deg 20 W) approximately 125 km east of Hudson Bay. The currently accepted diameters are 36 km and 26 km for the West and East structures, respectively. Long thought to represent a rare example of a double impact, recent age dating has called this into question with ages of approximately 286 Ma and approximately 460-470 Ma being proposed for the West and East structures, respectively. Relatively little is known about the East Clearwater Lake structure. There is no surface exposure and what information there is comes from geophysics and two drill cores obtained in the 1960s. In contrast, the West Clearwater Lake structure is relatively well preserved with large ring of islands in the approximately 30 km diameter lake. Much of the work done on West Clearwater stems from field investigations carried out in 1977 driven by the Apollo program, with a focus on the impact melt rocks and other impactites, which are well exposed on the ring of islands. To our knowledge, the Clearwater Lake impact structures have not been the focus of detailed impact geology field investigations since the 1977 expedition and the only geological map that exists is from the 1960s and is at the reconnaissance level. Our knowledge of impact cratering processes have increased substantially since this time, as have the analytical techniques available for samples. This provided the motivation for a joint Canadian-US-UK expedition to the West Clearwater Lake impact structure in August and September 2015, under the auspices of the FINESSE (Field Investigations to Enable Solar System Science and Exploration) project, part of NASA's Solar System Exploration Research Virtual Institute (SSERVI). We focus here on the impactites of the West Clearwater Lake

  17. Disintegration phenomena in Comet West

    Science.gov (United States)

    Sekanina, Z.

    1976-01-01

    Two peculiarities of Comet West, the multiple splitting of the nucleus as seen in telescope observations and the complex structure of the dust tail, are discussed. A method of analysis based on the premise that the observed rate of separation of a fragment from the principal nucleus is determined by the difference in effective solar attraction acting on the bodies is applied to investigate the motion of the four fragments that separated from the nucleus of Comet West. The predicted motion of the fragments is in good agreement with available observations. It is suggested that the 'synchronic' bands of the dust tail consist of tiny fragments from relatively large particles that burst after release from the comet. The unusual orientation of these bands and their high surface brightness relative to the diffuse tail are explained by a sudden increase in the particle acceleration and in the total scattering surface as the result of the disintegration of the larger particles.

  18. Permafrost degradation in West Greenland

    DEFF Research Database (Denmark)

    Foged, Niels Nielsen; Ingeman-Nielsen, Thomas

    2012-01-01

    Important aspects of civil engineering in West Greenland relate to the presence of permafrost and mapping of the annual and future changes in the active layer due to the ongoing climatically changes in the Arctic. The Arctic Technology Centre (ARTEK) has worked more than 10 years on this topic...... and the first author has been involved since 1970 in engineering geology, geotechnical engineering and permafrost related studies for foundation construction and infrastructures in towns and communities mainly in West Greenland. We have since 2006 together with the Danish Meteorological Institute, Greenland...... Survey (ASIAQ) and the University of Alaska Fairbanks carried out the US NSF funded project ARC-0612533: Recent and future permafrost variability, retreat and degradation in Greenland and Alaska: An integrated approach. This contribution will present data and observations from the towns Ilulissat...

  19. The West Bank: An Assessment.

    Science.gov (United States)

    1984-01-20

    78 percent Muslim, 9.6 percent Christian, 11 percent Jewish and I percent other. The Muslim population was distributed in urban and rural aleas ...to cluster in the mountains and hill country as a refuge from depredations by Beduins in the plains. Village feuds and the pressures of Turkish tax...modern living patterns, industry, and co-merce--well developed in the coastal areas--were, by comparison, primitive in the mountainous West Bank

  20. The effect of smoking on the healthy life expectancy of Palestinian men in the West Bank

    DEFF Research Database (Denmark)

    Brønnum-Hansen, Henrik; Jonassen, Marie; Shaheen, Amira

    2018-01-01

    differed between Palestinians living in and outside refugee camps. Methods: The study was based on representative samples of Palestinians living in the occupied Palestinian territory (West Bank and Gaza Strip), aged 25 years and older, collected by the Palestinian Central Bureau of Statistics in 2006...