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Sample records for texas concurrent characterization

  1. The Texas concurrent characterization, licensing, and development process

    Energy Technology Data Exchange (ETDEWEB)

    Avant, R.V. Jr. [Texas Low-Level Radioactive Waste Disposal Authority, Austin, TX (United States)

    1993-03-01

    The 72nd Texas Legislature specifically delineated a 400-square-mile area in southeast Hudspeth County where siting activities would be limited. The Authority was given unprecedented powers of property access and eminent domain and expanded budget authority to conduct site selection, characterization, and licensing. In the summer of 1991, the Authority identified five general siting areas in the prescribed region, and in the fall of 1991, the Authority narrowed the siting area to one large ranch composed of about 16,000 acres--called the Faskin Ranch. Site characterization began in 1991 and will be complete by September 1993. In September 1991, Authority staff began preparing the license application and included all available information on the Faskin Ranch. At its February meeting, the Authority`s board directed staff to submit the license application to the Texas Water Commission (the new Texas radiation control agency). The license application was submitted on March 2, 1992, and on April 15, 1992, the Commission determined that the application was sufficiently complete to begin review. Discrete technical packages such as groundwater hydrology, surface water hydrology, design, etc., will be submitted to the agency for review on the completion of each package. A schedule has been developed to allow the regulators the maximum time possible to review critical technical areas while minimizing the total review period.

  2. Concurrent

    Directory of Open Access Journals (Sweden)

    Mohamed S. Taha

    2013-11-01

    Conclusion: Postcricoid carcinoma comprises the majority of hypopharyngeal tumors in Egypt. Females are more commonly affected by these tumors, especially postcricoid carcinoma. There was no survival difference between the intended therapy for organ preservation and radical surgery groups. Patients who received concurrent radiochemotherapy had a better chance of survival with a preserved larynx compared with patients who underwent surgery.

  3. Concurrent fetal exposure to multiple environmental chemicals along the U.S.-Mexico border: an exploratory study in Brownsville, Texas.

    Science.gov (United States)

    Sexton, Ken; Salinas, Jennifer J

    2014-09-29

    There is mounting concern that cumulative exposure to diverse chemicals in the environment may contribute to observed adverse health outcomes in the Lower Rio Grande Valley of Texas. To investigate this situation, biomarker concentrations of organochlorine (OC) pesticides/metabolites, polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) were measured in maternal and umbilical cord blood from pregnant Hispanic women in Brownsville, TX. Results show that both mothers and fetuses were exposed concurrently to a variety of relatively low-level, hazardous environmental chemicals. Approximately 10% of the blood specimens had comparatively high concentrations of specific OC pesticides, PCBs and PAHs. Because many pregnant women in Brownsville live in socioeconomically-disadvantaged and environmentally-challenging circumstances, there is appropriate concern that exposure to these exogenous substances, either individually or in combination, may contribute to endemic health problems in this population, including cardiovascular disease, obesity, and diabetes. The challenge is to identify individuals at highest comparative risk and then implement effective programs to either prevent or reduce cumulative exposures that pose significant health-related threats.

  4. Examining Concurrent Validity and Predictive Utility for the Addiction Severity Index and Texas Christian University (TCU) Short Forms

    Science.gov (United States)

    Pankow, Jennifer; Simpson, D. Dwayne; Joe, George W.; Rowan-Szal, Grace A.; Knight, Kevin; Meason, Paul

    2012-01-01

    Treatment providers need tools that are designed to identify risk, treatment needs, and monitor client engagement. These are essential components in substance abuse treatment for offender populations. In this study, the authors evaluated a flexible set of one-page modular assessments known as the Texas Christian University (TCU) Short Forms and…

  5. Characterization of oil and gas reservoirs and recovery technology deployment on Texas State Lands

    Energy Technology Data Exchange (ETDEWEB)

    Tyler, R.; Major, R.P.; Holtz, M.H. [Univ. of Texas, Austin, TX (United States)] [and others

    1997-08-01

    Texas State Lands oil and gas resources are estimated at 1.6 BSTB of remaining mobile oil, 2.1 BSTB, or residual oil, and nearly 10 Tcf of remaining gas. An integrated, detailed geologic and engineering characterization of Texas State Lands has created quantitative descriptions of the oil and gas reservoirs, resulting in delineation of untapped, bypassed compartments and zones of remaining oil and gas. On Texas State Lands, the knowledge gained from such interpretative, quantitative reservoir descriptions has been the basis for designing optimized recovery strategies, including well deepening, recompletions, workovers, targeted infill drilling, injection profile modification, and waterflood optimization. The State of Texas Advanced Resource Recovery program is currently evaluating oil and gas fields along the Gulf Coast (South Copano Bay and Umbrella Point fields) and in the Permian Basin (Keystone East, Ozona, Geraldine Ford and Ford West fields). The program is grounded in advanced reservoir characterization techniques that define the residence of unrecovered oil and gas remaining in select State Land reservoirs. Integral to the program is collaboration with operators in order to deploy advanced reservoir exploitation and management plans. These plans are made on the basis of a thorough understanding of internal reservoir architecture and its controls on remaining oil and gas distribution. Continued accurate, detailed Texas State Lands reservoir description and characterization will ensure deployment of the most current and economically viable recovery technologies and strategies available.

  6. Concurrent Fetal Exposure to Multiple Environmental Chemicals along the U.S.—Mexico Border: An Exploratory Study in Brownsville, Texas

    Directory of Open Access Journals (Sweden)

    Ken Sexton

    2014-09-01

    Full Text Available There is mounting concern that cumulative exposure to diverse chemicals in the environment may contribute to observed adverse health outcomes in the Lower Rio Grande Valley of Texas. To investigate this situation, biomarker concentrations of organochlorine (OC pesticides/metabolites, polychlorinated biphenyls (PCBs, and polycyclic aromatic hydrocarbons (PAHs were measured in maternal and umbilical cord blood from pregnant Hispanic women in Brownsville, TX. Results show that both mothers and fetuses were exposed concurrently to a variety of relatively low-level, hazardous environmental chemicals. Approximately 10% of the blood specimens had comparatively high concentrations of specific OC pesticides, PCBs and PAHs. Because many pregnant women in Brownsville live in socioeconomically-disadvantaged and environmentally-challenging circumstances, there is appropriate concern that exposure to these exogenous substances, either individually or in combination, may contribute to endemic health problems in this population, including cardiovascular disease, obesity, and diabetes.  The challenge is to identify individuals at highest comparative risk and then implement effective programs to either prevent or reduce cumulative exposures that pose significant health-related threats.

  7. Geopressured geothermal resource of the Texas and Louisiana Gulf Coast: a technology characterization and environmental assessment

    Energy Technology Data Exchange (ETDEWEB)

    Usibelli, A.; Deibler, P.; Sathaye, J.

    1980-12-01

    Two aspects of the Texas and Louisiana Gulf Coast geopressured geothermal resource: (1) the technological requirements for well drilling, completion, and energy conversion, and, (2) the environmental impacts of resource exploitation are examined. The information comes from the literature on geopressured geothermal research and from interviews and discussions with experts. The technology characterization section emphasizes those areas in which uncertainty exists and in which further research and development is needed. The environmental assessment section discusses all anticipated environmental impacts and focuses on the two largest potential problems: (a) subsidence and (b) brine disposal.

  8. Geologic and Engineering Characterization of East Ford Field, Reeves County, Texas

    Energy Technology Data Exchange (ETDEWEB)

    Dutton, Shirley P.; Flanders, William A.; Guzman, Jose I.; Zirczy, Helena

    1999-08-16

    The objective of this Class III project is to demonstrate that detailed reservoir characterization of slope and basin clastic reservoirs in sandstones of the Delaware Mountain Group in the Delaware Basin of West Texas and New Mexico is a cost-effective way to recover a higher percentage of the original oil in place through geologically based field development. The project focused on reservoir characterization of the East Ford unit, a representative Delaware Mountain Group field that produces from the upper Bell Canyon Formation (Ramsey Sandstone). The field, discovered in 1960, is operated by Oral Petco, Inc., as the East Ford unit: it contained an estimated 18.4 million barrels (MMbbl) of original oil in place.

  9. DARPA ANTIBODY TECHNOLOGY PROGRAM STANDARDIZED TEST BED FOR ANTIBODY CHARACTERIZATION: CHARACTERIZATION OF TWO MS2 SCFV ANTIBODIES PRODUCED BY THE UNIVERSITY OF TEXAS

    Science.gov (United States)

    2017-05-01

    ECBC-TR-1434 DARPA ANTIBODY TECHNOLOGY PROGRAM STANDARDIZED TEST BED FOR...COVERED (From - To) Oct 2010 – Sep 2012 4. TITLE AND SUBTITLE DARPA Antibody Technology Program Standardized Test Bed for Antibody Characterization...Characterization of Two MS2 scFv Antibodies Produced by the University of Texas 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER

  10. Concurrent Fetal Exposure to Multiple Environmental Chemicals along the U.S.—Mexico Border: An Exploratory Study in Brownsville, Texas

    OpenAIRE

    Ken Sexton; Salinas, Jennifer J.

    2014-01-01

    There is mounting concern that cumulative exposure to diverse chemicals in the environment may contribute to observed adverse health outcomes in the Lower Rio Grande Valley of Texas. To investigate this situation, biomarker concentrations of organochlorine (OC) pesticides/metabolites, polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) were measured in maternal and umbilical cord blood from pregnant Hispanic women in Brownsville, TX. Results show that both mothers an...

  11. Was everything bigger in Texas? Characterization and trends of a land-based recreational shark fishery

    Science.gov (United States)

    Ajemian, Matthew J.; Jose, Philip D.; Froeschke, John T.; Wildhaber, Mark L.; Stunz, Gregory W.

    2016-01-01

    Although current assessments of shark population trends involve both fishery-independent and fishery-dependent data, the latter are generally limited to commercial landings that may neglect nearshore coastal habitats. Texas has supported the longest organized land-based recreational shark fishery in the United States, yet no studies have used this “non-traditional” data source to characterize the catch composition or trends in this multidecadal fishery. We analyzed catch records from two distinct periods straddling heavy commercial exploitation of sharks in the Gulf of Mexico (historical period = 1973–1986; modern period = 2008–2015) to highlight and make available the current status and historical trends in Texas’ land-based shark fishery. Catch records describing large coastal species (>1,800 mm stretched total length [STL]) were examined using multivariate techniques to assess catch seasonality and potential temporal shifts in species composition. These fishery-dependent data revealed consistent seasonality that was independent of the data set examined, although distinct shark assemblages were evident between the two periods. Similarity percentage analysis suggested decreased contributions of Lemon Shark Negaprion brevirostris over time and a general shift toward the dominance of Bull Shark Carcharhinus leucas and Blacktip Shark C. limbatus. Comparisons of mean STL for species captured in historical and modern periods further identified significant decreases for both Bull Sharks and Lemon Sharks. Size structure analysis showed a distinct paucity of landed individuals over 2,000 mm STL in recent years. Although inherent biases in reporting and potential gear-related inconsistencies undoubtedly influenced this fishery-dependent data set, the patterns in our findings documented potential declines in the size and occurrence of select large coastal shark species off Texas, consistent with declines reported in the Gulf of Mexico. Future management efforts

  12. Accessing Disadvantaged Pregnant Women in Houston, Texas, and Characterizing Biomarkers of Metal Exposure: A Feasibility Study

    Directory of Open Access Journals (Sweden)

    Kristina W. Whitworth

    2017-04-01

    Full Text Available Abstract: Communities of color or low socioeconomic status are disproportionately affected by metal exposure given spatial variability of the ambient levels of these contaminants. Despite this, there is little research characterizing metal concentrations in blood among disadvantaged populations in the U.S., especially among pregnant women who are particularly vulnerable and difficult to access. Thus, we conducted a pilot study among disadvantaged pregnant women in Houston, Texas to assess willingness to participate in key activities of an epidemiologic study and characterize exposures to 16 metals. Thirty-one women attending a Medicaid-serving prenatal clinic were included in this pilot study and completed an interviewer-administered questionnaire. We obtained and measured metal compounds in whole blood samples for 22 of these women during third-trimester prenatal visits. Median whole blood concentrations of Ni, As, Cd, and Pb were 27, 1.4, 0.6, and 6.3 µg/L, respectively. Most women were willing to participate in critical aspects of a research study, including wearing a personal air-sampling badge for 2–3 days (87.1%, receiving ultrasounds (83.9%, and providing blood draws (64.5%. Despite the small sample, our results provide evidence of women’s metal exposure and their willingness to participate in future research studies to elucidate exposure pathways and explore related health effects experienced among this population of disadvantaged pregnant women.

  13. Characterization of undrained shear strength profiles for soft clays at six sites in Texas.

    Science.gov (United States)

    2009-01-01

    TxDOT frequently uses Texas Cone Penetrometer (TCP) blow counts to estimate undrained shear strength. : However, the current correlations between TCP resistance and undrained shear strength have been developed primarily for : significantly stronger s...

  14. Molecular characterization and pathogenicity assays of Colletotrichum acutatum, causal agent for lime anthracnose in Texas

    Science.gov (United States)

    Several distorted Mexican lime [Citrus aurantiifolia (Christm). Swingle] fruit, leaf, and twig samples with lime anthracnose symptoms were collected from three trees in residential areas of Brownsville, Texas. The causal fungal organism, Colletotrichum acutatum J. H. Simmonds was isolated from leave...

  15. Characterization of the Infant BMI Peak: Sex Differences, Birth Year Cohort Effects, Association with Concurrent Adiposity, and Heritability

    Science.gov (United States)

    Johnson, William; Choh, Audrey C.; Lee, Miryoung; Towne, Bradford; Czerwinski, Stefan A.; Demerath, Ellen W.

    2014-01-01

    Objectives To characterize an early trait in the BMI-for-age curve, the infant BMI peak. Methods BMI-for-age curves were produced for 747 non-Hispanic, white Fels Longitudinal Study participants, from which individual age (AgePeak) and BMI (BMIPeak) at maximum infant BMI were estimated. Multivariable general linear regression was used to examine the effects of sex and birth year cohort (1929–1950, 1951–1970, and 1971–2010) on AgePeak and BMIPeak, with associations between BMIPeak and concurrent sum of four skinfold thicknesses assessed in a subsample (N = 155). Heritability (h2) of AgePeak and BMIPeak was estimated using maximum-likelihood variance components analysis. Results AgePeak occurred at 9 months of age in both sexes, but BMIPeak was 0.4 kg/m2 higher for boys than for girls (P-value adiposity, AgePeak appears to occur later than does the well-documented peak in infant fat mass and BMIPeak does not capture known sex differences in infant adiposity. Strong heritability of these infant BMI traits suggests investigation of genetic control, and validation of their relationship to body composition is greatly needed. PMID:23606227

  16. Characterization of geomorphic units in the alluvial valleys and channels of Gulf Coastal Plain rivers in Texas, with examples from the Brazos, Sabine, and Trinity Rivers, 2010

    Science.gov (United States)

    Coffman, David K.; Malstaff, Greg; Heitmuller, Franklin T.

    2011-01-01

    The U.S. Geological Survey, in cooperation with the Texas Water Development Board, described and characterized examples of geomorphic units within the channels and alluvial valleys of Texas Gulf Coastal Plain rivers using a geomorphic unit classification scale that differentiates geomorphic units on the basis of their location either outside or inside the river channel. The geomorphic properties of a river system determine the distribution and type of potential habitat both within and adjacent to the channel. This report characterizes the geomorphic units contained in the river channels and alluvial valleys of Texas Gulf Coastal Plain rivers in the context of the River Styles framework. This report is intended to help Texas Instream Flow Program practitioners, river managers, ecologists and biologists, and others interested in the geomorphology and the physical processes of the rivers of the Texas Gulf Coastal Plain (1) gain insights into how geomorphic units develop and adjust spatially and temporally, and (2) be able to recognize common geomorphic units from the examples cataloged in this report. Recent aerial imagery (high-resolution digital orthoimagery) collected in 2008 and 2009 were inspected by using geographic information system software to identify representative examples of the types of geomorphic units that occurred in the study area. Geomorphic units outside the channels of Texas Gulf Coastal Plain rivers are called \\"valley geomorphic units\\" in this report. Valley geomorphic units for the Texas Gulf Coastal Plain rivers described in this report are terraces, flood plains, crevasses and crevasse splays, flood-plain depressions, tie channels, tributaries, paleochannels, anabranches, distributaries, natural levees, neck cutoffs, oxbow lakes, and constructed channels. Channel geomorphic units occur in the river channel and are subject to frequent stresses associated with flowing water and sediment transport; they adjust (change) relatively quickly in

  17. Application of advanced reservoir characterization, simulation and production optimization strategies to maximize recovery in slope and basin clastic reservoirs, West Texas (Delaware Basin). Annual report

    Energy Technology Data Exchange (ETDEWEB)

    Dutton, S.P.; Asquith, G.B.; Barton, M.D.; Cole, A.G.; Gogas, J.; Malik, M.A.; Clift, S.J.; Guzman, J.I.

    1997-11-01

    The objective of this project is to demonstrate that detailed reservoir characterization of slope and basin clastic reservoirs in sandstones of the Delaware Mountain Group in the Delaware Basin of West Texas and New Mexico is a cost-effective way to recover a higher percentage of the original oil in place through strategic placement of infill wells and geologically based field development. This project involves reservoir characterization of two Late Permian slope and basin clastic reservoirs in the Delaware Basin, West Texas, followed by a field demonstration in one of the fields. The fields being investigated are Geraldine Ford and Ford West fields in Reeves and Culberson Counties, Texas. Project objectives are divided into two major phases, reservoir characterization and implementation. The objectives of the reservoir characterization phase of the project were to provide a detailed understanding of the architecture and heterogeneity of the two fields, the Ford Geraldine unit and Ford West field. Reservoir characterization utilized 3-D seismic data, high-resolution sequence stratigraphy, subsurface field studies, outcrop characterization, and other techniques. Once reservoir characterized was completed, a pilot area of approximately 1 mi{sup 2} at the northern end of the Ford Geraldine unit was chosen for reservoir simulation. This report summarizes the results of the second year of reservoir characterization.

  18. Risk characterization of hospitalizations for mental illness and/or behavioral disorders with concurrent heat-related illness.

    Science.gov (United States)

    Schmeltz, Michael T; Gamble, Janet L

    2017-01-01

    Many studies have found significant associations between high ambient temperatures and increases in heat-related morbidity and mortality. Several studies have demonstrated that increases in heat-related hospitalizations are elevated among individuals with diagnosed mental illnesses and/or behavioral disorders (MBD). However, there are a limited number of studies regarding risk factors associated with specific mental illnesses that contribute, at least in part, to heat-related illnesses (HRI) in the United States. To identify and characterize individual and environmental risk factors associated with MBD hospitalizations with a concurrent HRI diagnosis. This study uses hospitalization data from the Nationwide Inpatient Sample (2001-2010). Descriptive analyses of primary and secondary diagnoses of MBDs with an HRI were examined. Risk ratios (RR) were calculated from multivariable models to identify risk factors for hospitalizations among patients with mental illnesses and/or behavioral disorders and HRI. Nondependent alcohol/drug abuse, dementia, and schizophrenia were among the disorders that were associated with increased frequency of HRI hospitalizations among MBD patients. Increased risk of MBD hospitalizations with HRI was observed for Males (RR, 3.06), African Americans (RR, 1.16), Native Americans (RR, 1.70), uninsured (RR, 1.92), and those 40 years and older, compared to MBD hospitalizations alone. Previous studies outside the U.S. have found that dementia and schizophrenia are significant risk factors for HRI hospitalizations. Our results suggest that hospitalizations among substance abusers may also be an important risk factor associated with heat morbidity. Improved understanding of these relative risks could help inform future public health strategies.

  19. Characterization of the Lower Wolfcamp, Midland Basin, Texas, using subsurface stratigraphic and geochemical datasets.

    Science.gov (United States)

    Perlman, Z. S.; Ryan, P. T.; Baldwin, P.; Lucas, J.; McGlue, M. M.; Waite, L.; Woodruff, O. P.

    2016-12-01

    In recent years, the Midland Basin of west Texas has resurfaced as a strong and viable unconventional oil field, especially within the late Pennsylvanian-Early Permian section. In addition to exploring for hydrocarbons, studying this basin allows for a better understanding of the paleoceanographic and paleoenvironmental conditions that prevailed during deposition. This research focuses on subsurface data from the Lower Wolfcamp interval of the northern Midland Basin proximal to the Horseshoe Atoll. Chemostratigraphic and lithostratigraphic analyses were conducted on 388 ft of continuous drill core extracted from Martin County, Texas. Comprehensive analyses revealed repetitive stacking of organic-rich siliceous mudrocks, aluminum-rich clayey mudrocks, and diverse carbonate facies. High resolution energy dispersive X-ray fluorescence data demonstrate cyclic variability in silicon, aluminum, and calcium weight percentages. These data suggest that during the time of deposition, the Midland Basin was a mixed siliciclastic-carbonate system influenced by a global icehouse climate with high frequency glacio-eustatic sea level fluctuations. Organic carbon preservation at this time was at least partially influenced by bottom water redox conditions. Elemental trace metal data suggests the potential for anoxia and possibly euxinia, likely influenced by recharge from the Panthalassic Ocean. Stratal evidence for bottom water conditions and patterns of organic enrichment vary across the basin and in vertical succession; these factors may be explained by evolving oceanographic processes and environmental gradients within the basin. The timing of Lower Wolfcamp deposition may be Late Pennsylvanian, based on correlations to fusulinids in shelfal carbonates. Thus, our preliminary interpretations focus on Lower Wolfcamp strata as a condensed package of deep-basin cyclothems.

  20. Hydrologic hydrochemical characterization of Texas Frio Formation used for deep-well injection of chemical wastes

    Energy Technology Data Exchange (ETDEWEB)

    Kreitler, C.W.; Akhter, M.S.; Donnelly, A.C.A. (Texas Univ., Austin (United States))

    1990-03-01

    Hydrologic hydrochemical investigations were conducted to determine the long-term fate of hazardous chemical waste disposed in the Texas Gulf Coast Tertiary Frio Formation by deep-well injection. Three hydrologic regimes exist within the Frio Formation: a shallow fresh to moderately saline water section in the upper 3,000-4,000 ft; an underlying 4,000-5,000 ft section with moderate to high salinities; and a deeper overpressured section with moderate to high salinities. The complexity of the hydrologic environment is enhanced due to extensive depressurization in the 4,000-8,000 ft depth interval, which presumably results from the estimated production of over 10 billion barrels of oil equivalent and associated brines from the Frio in the past 50 years. Because of the higher fluid density and general depressurization in the brine hydrostatic section, upward migration of these brines to shallow fresh groundwater should not occur. Depressurized oil and gas fields, however, may become sinks for the injected chemical wastes. Water samples appear to be in approximate oxygen isotopic equilibrium with the rock matrix, suggesting that active recharge by continental waters is not occurring. In the northern Texas Gulf Coast region salt dome dissolution controls water chemistry. In the central and southern Frio Formation, brines from the deeper geopressured section may be leaking into the hydrostatic section. The lack of organic acids and the alteration of Frio oils from samples collected from depths shallower than approximately 7,000 ft suggest microbial degradation of organic material. This has useful implications for degradation of injected chemical wastes and needs to be investigated further. 17 refs., 15 figs.

  1. Hydrologic hydrochemical characterization of texas frio formation used for deep-well injection of chemical wastes

    Science.gov (United States)

    Kreitler, Charles W.; Akhter, M. Saleem; Donnelly, Andrew C. A.

    1990-09-01

    Hydrologic hydrochemical investigations were conducted to determine the long-term fate of hazardous chemical waste disposed in the Texas Gulf Coast Tertiary formations by deep-well injection. The study focused on the hydrostatic section of the Frio Formation because it is the host of a very large volume of injected waste and because large data bases of formation pressures and water chemistry are available. Three hydrologic regimes exist within the Frio Formation: a shallow fresh to moderately saline water section in the upper 3,000 4,000 ft (914 1,219 m); an underlying 4,000- to 5,000-ft-thick (1,219- to 1,524-m) section with moderate to high salinities: and a deeper overpressured section with moderate to high salinities. The upper two sections are normally pressured and reflect either freshwater or brine hydrostatic pressure gradients. Geopressured conditions are encountered as shallow as 6,000 ft (1,829 m). The complexity of the hydrologic environment is enhanced due to extensive depressurization in the 4,000- to 8,000-ft-depth (1,219- to 2,438-m) interval, which presumably results from the estimated production of over 10 billion barrels (208 × 106 m3) of oil equivalent and associated brines from the Frio in the past 50 yr. Because of the higher fluid density and general depressurization in the brine hydrostatic section, upward migration of these brines to shallow fresh groundwaters should not occur. Depressured oil and gas fields, however, may become sinks for the injected chemical wastes. Water samples appear to be in approximate oxygen isotopic equilibrium with the rock matrix, suggesting that active recharge of the Frio by continental waters is not occurring. In the northern Texas Gulf Coast region salt dome dissolution is a prime process controlling water chemistry. In the central and southern Frio Formation, brines from the deeper geopressured section may be leaking into the hydrostatic section. The lack of organic acids and the alteration of Frio oils

  2. Concurrent Breakpoints

    Science.gov (United States)

    2011-12-18

    motivated by recent testing techniques for concurrent programs, such as CalFuzzer [17, 39, 31, 18], AssetFuzzer [20], CTrigger [32], Penelope [40], and...40] F. Sorrentino, A. Farzan, and P. Madhusudan. Penelope : weaving threads to expose atomicity violations. In Eighteenth ACM SIGSOFT international

  3. Characterization and Field Studies of a Cucumber Mosaic Virus Isolate from Spinach in the Winter Garden Area of Texas

    Science.gov (United States)

    A. Dan Wilson; R.S. Halliwell

    1985-01-01

    An isolate of cucumber mosaic virus (CMV) was identified from spinach in the Winter Garden area of Texas. The isolate was very closely related serologically to strain S of CMVand is designated the Texas spinach isolate of CMV-S. The virus infected 39 species of crop plants and wild hosts in 12 of 13 families tested. The green peach aphid efficiently transmitted the...

  4. Characterizing the fabric of the urban environment: A case study of Greater Houston, Texas

    Energy Technology Data Exchange (ETDEWEB)

    Rose, Leanna Shea; Akbari, Hashem; Taha, Haider

    2003-01-15

    In this report, the materials and various surface types that comprise a city are referred to as the ''urban fabric.'' Urban fabric data are needed in order to estimate the impact of light-colored surfaces (roofs and pavements) and urban vegetation (trees, grass, shrubs) on the meteorology and air quality of a city, and to design effective urban environmental implementation programs. We discuss the results of a semi-automatic Monte-Carlo statistical approach used to develop data on surface-type distribution and city-fabric makeup (percentage of various surface-types) using aerial color orthophotography. The digital aerial photographs for Houston covered a total of about 52 km2 (20 mi2). At 0.30-m resolution, there were approximately 5.8 x 108 pixels of data. Four major land-use types were examined: (1) commercial, (2) industrial, (3) educational, and (4) residential. On average, for the regions studied, vegetation covers about 39 percent of the area, roofs cover about 21 percent, and paved surfaces cover about 29 percent. For the most part, trees shade streets, parking lots, grass, and sidewalks. At ground level, i.e., view from below the vegetation canopies, paved surfaces cover about 32 percent of the study area. GLOBEIS model data from University of Texas and land-use/land-cover (LULC) information from the United States Geological Survey (USGS) were used to extrapolate these results from neighborhood scales to Greater Houston. It was found that in an area of roughly 3,430 km2, defining most of Greater Houston, over 56 percent is residential. The total roof area is about 740 km2, and the total paved surface area (roads, parking areas, sidewalks) covers about 1000 km2. Vegetation covers about 1,320 km2.

  5. Characterization of Hydraulically Significant Discontinuities in Mudrocks at the Waste Control Specialists (WCS) Site, West Texas

    Science.gov (United States)

    Kuszmaul, J. S.; Holt, R. M.; Powers, D. W.; Beauheim, R.; Pickens, J. F.; grisak, G. E.; Hughes, E.; Cook, S.

    2011-12-01

    Triassic mudrocks of the Dockum Group (Cooper Canyon Formation) host four, below-grade landfills at the Waste Control Specialists (WSC) site in Andrews County, Texas, including: a hazardous waste landfill and three radioactive waste landfills. At many radioactive waste disposal facilities, the long-term performance of the facility may be influenced by the transport of radionuclides through interconnected fracture networks. WCS developed an integrated geologic mapping and hydraulic testing program to evaluate the hydraulic significance of discontinuities within Dockum rocks. At the WCS site, the Dockum consists of mudrocks with sparse siltstone/sandstone interbeds that developed in a semi-arid environment from an ephemeral meandering fluvial system. Sedimentary studies reveal that the mudrocks are ancient floodplain vertisols (soils with swelling clays) and siltstone/sandstone interbeds are fluvial channel deposits that were frequently subaerially exposed. Rock discontinuities, including fractures, were mapped during the excavation of the WCS radioactive waste landfills along vertical faces prepared by the construction contractor. Face locations were selected to insure nearly complete vertical coverage for each landfill. Individual discontinuities were mapped and their strike, dip, length, roughness, curvature, staining, and evidence of displacement were described. In the three radioactive waste disposal landfills, over 1750 discontinuities across 35 excavated faces were mapped and described, where each face was nominally 8 to 10 ft tall and 50 to 100 ft long. On average, the orientation of the discontinuities was horizontal, and no other significant trends were observed. Mapping within the landfill excavations shows that most discontinuities within Dockum rocks are horizontal, concave upward, slickensided surfaces that developed in the depositional environment, as repeated wetting and drying cycles led to shrinking and swelling of floodplain vertisols. Fractures

  6. Hydrogeological characterization of a bank filtration experiment site at the Rio Grande, El Paso, Texas, USA

    Science.gov (United States)

    Langford, R.; Schulze-Makuch, D.; Pillai, S.; Abdel-Fattah, A.; Widmer, K.

    2003-04-01

    An experiment site was constructed along an artificial channel of the Rio Grande in El Paso, Texas. The experiment was funded by the EPA and is designed to measure the effectiveness of bank filtration in an arid environment. Regionally, the experiment is important because of the hundreds of thousands of people drinking water from shallow wells drilled in close proximity to septic systems. A pumping well was drilled 17 meters from the stream bank and screened from 3.5 to 8 m depth. A cruciform array of observation wells with several multilevel completions allows detection of downstream and vertical movement of water as well as flow from the stream to the well. All of the wells were continuously cored during drilling. Analysis of the cores reveals that the site consists of two stacked channels filled with sand deposited from the meandering Rio Grande. A grid of ground-penetrating radar lines provided three-dimensional coverage between wells and showed bedding to 6.5 m depth. Constant head hydraulic conductivities show that the aquifer consists of two more permeable units separated by the less permeable upper fill of the lower channel complex, with vertical hydraulic conductivities of (1x10-6 to 2x10-6 m/s?). The intervals above and below this interval have the highest vertical conductivities (up to 3.5x10-5 m/s). A multiple pumping and tracer test was conducted using the cruciform array of the field site that consisted of a pumping well, 16 observation wells, and a stream sampling point. The average hydraulic conductivity of the geological media at the field site was about 2 x 10-3 m/s based on pumping test analysis. However, the type curve responses revealed significant heterogeneity of hydraulic conductivity throughout the field site. For the tracer test, bromide and microspheres were used as tracers. Microspheres were used to mimic the behavior of Giardia and Cryptosporidium. The tracers (bromide and microspheres of different sizes and colors) were injected in one

  7. Evaporite karst geohazards in the Delaware Basin, Texas: review of traditional karst studies coupled with geophysical and remote sensing characterization

    Directory of Open Access Journals (Sweden)

    Kevin W. Stafford

    2017-06-01

    Full Text Available Evaporite karst throughout the Gypsum Plain of west Texas is complex and extensive, including manifestations ranging from intrastratal brecciation and hypogene caves to epigene features and suffosion caves. Recent advances in hydrocarbon exploration and extraction has resulted in increased infrastructure development and utilization in the area; as a result, delineation and characterization of potential karst geohazards throughout the region have become a greater concern. While traditional karst surveys are essential for delineating the subsurface extent and morphology of individual caves for speleogenetic interpretation, these methods tend to underestimate the total extent of karst development and require surficial manifestation of karst phenomena. Therefore, this study utilizes a composite suite of remote sensing and traditional field studies for improved karst delineation and detection of potential karst geohazards within gypsum karst. Color InfraRed (CIR imagery were utilized for delineation of lineaments associated with fractures, while Normalized Density Vegetation Index (NDVI analyses were used to delineate regions of increased moisture flux and probable zones of shallow karst development. Digital Elevation Models (DEM constructed from high-resolution LiDAR (Light Detection and Ranging data were used to spatially interpret sinkholes, while analyses of LiDAR intensity data were used in a novel way to categorize local variations in surface geology. Resistivity data, including both direct current (DC and capacitively coupled (CC resistivity analyses, were acquired and interpreted throughout the study area to delineate potential shallow karst geohazards specifically associated with roadways of geohazard concern; however, detailed knowledge of the surrounding geology and local karst development proved essential for proper interpretation of resistivity inversions. The composite suite of traditional field investigations and remotely sensed karst

  8. Application of Advanced Reservoir Characterization, Simulation, and Production Optimization Strategies to Maximize Recovery in Slope and Basin Clastic Reservoirs, West Texas (Delaware Basin), Class III

    Energy Technology Data Exchange (ETDEWEB)

    Dutton, Shirley P.; Flanders, William A.

    2001-11-04

    The objective of this Class III project was demonstrate that reservoir characterization and enhanced oil recovery (EOR) by CO2 flood can increase production from slope and basin clastic reservoirs in sandstones of the Delaware Mountain Group in the Delaware Basin of West Texas and New Mexico. Phase 1 of the project, reservoir characterization, focused on Geraldine Ford and East Ford fields, which are Delaware Mountain Group fields that produce from the upper Bell Canyon Formation (Ramsey sandstone). The demonstration phase of the project was a CO2 flood conducted in East Ford field, which is operated by Orla Petco, Inc., as the East Ford unit.

  9. Characterization of stormwater runoff from the Naval Air Station and Naval Wepons Industrial Reserve Plant, Dallas, Texas, 1994-96

    Science.gov (United States)

    Raines, T.H.; Baldys, Stanley; Lizarraga, J.S.

    1997-01-01

    The characterization of stormwater runoff from the Naval Air Station (NAS) and the Naval Weapons Industrial Reserve Plant (NWIRP), Dallas, Texas, is necessary to determine if runoff from the facilities is contributing to off-site contamination of surface waters, A network of five fixed sites and four grab sites was established to collect stormwater-runoff samples from a substantial part of the drainage area of each facility. Fixed sites were instrumented to measure and store precipitation, stage, discharge, and runoff-volume data and to collect flow-weighted composite samples during a storm. Grab and composite samples were collected for six storms at each of the five fixed sites from October 1994 to March 1996. The grab samples were analyzed for about 100 properties and constituents including specific conductance, pH, water temperature, bacteria, trace elements, oil and grease, total phenols, and volatile organic compounds. The composite samples were analyzed for about 220 properties and constituents including specific conductance, pH, chemical oxygen demand, biochemical oxygen demand, major ions, suspended and dissolved solids, nutrients, trace elements, total organic carbon, volatile organic compounds, semivolatile organic compounds, and organochlorine and organophosphorus pesticides. Grab samples were collected for two storms (September 18,1995, and October 2,1995) at each of the four grab sites. The grab samples were analyzed for about 80 constituents including specific conductance, pH, water temperature, trace elements, and volatile organic compounds. Composite samples were collected for two of the six storms sampled at the fixed sites and analyzed for aquatic toxicity. Fathead minnow growth and survival toxicity tests and water flea reproduction and survival toxicity tests were done.

  10. Characterizing Sedimentary Responses to Coastal Faulting Using High-Resolution Geochronology and Sedimentology: East Matagorda Peninsula, Texas

    Science.gov (United States)

    Wolfe, P.; Yeager, K. M.; Feagin, R. A.; Brunner, C. A.; Schindler, K. J.

    2013-12-01

    The structural framework of the northern Gulf of Mexico coastal zone is characterized by numerous growth fault systems. Neotectonic processes in coastal marshes in this region have been shown to be important drivers of relative sea-level rise as well as having significant influence on marsh accretion processes. An apparent historical acceleration of movement along some of these coastal faults is believed to be largely a result of the regional onset and intensification of subsurface fluid withdrawal from the 1930's to the present. One active growth fault breached the surface of East Matagorda Peninsula, Texas as early as the 1960's and displacement there is ongoing, leading to significant wetland losses over the past several decades. To characterize the Holocene behavior of this fault and the consequent sedimentary responses, a suite of fallout radionuclides (7Be, 137Cs, 210Pb) and radiocarbon (14C), supplemented by sedimentological data have been used to determine sediment mixing depths, rates of sediment accumulation, and sediment geochronology. These tools allow for testing of the hypothesis that the fault at Matagorda has been recently reactivated, leading to surficial deformation and alteration of sediment accumulation processes, particularly on the downthrown side of the fault. Correlation of time-equivalent stratigraphic boundaries reveals a maximum total Holocene fault offset of ~1 meter. Determination of fault slip rates from these values reveals a linear trend of displacement as a function of distance along the fault trace with maximum slip occurring to the southwest (seaward) and minimum slip to the northeast. Mean fallout radionuclide-derived sediment accumulation rates for the past ~100 years are relatively uniform across the fault trace. However, rates from the downthrown station nearest to the fault trace display a dramatic increase over the last 30 years. This increase is likely a response to fault-induced increased accommodation space on the

  11. Fracture characterization and discrimination criteria for karst and tectonic fractures in the Ellenburger Group, West Texas: Implications for reservoir and exploration models

    Energy Technology Data Exchange (ETDEWEB)

    Hoak, T.E. [Science Applications International Corp., Germantown, MD (United States)]|[Kestrel Geoscience, Littleton, CO (United States); Sundberg, K.R. [Phillips Petroleum Co., Bartlesville, OK (United States); Deyhim, P. [Oklahoma State Univ., Stillwater, OK (United States); Ortoleva, P. [Indiana Univ., Bloomington, IN (United States). Lab. for Computational Geodynamics

    1998-12-31

    In the Ellenburger Group fractured dolomite reservoirs of West Texas, it is extremely difficult to distinguish between multiple phases of karst-related fracturing, modifications to the karst system during burial, and overprinting tectonic fractures. From the analyses of drill core, the authors developed criteria to distinguish between karst and tectonic fractures. In addition, they have applied these criteria within the context of a detailed diagenetic cement history that allows them to further refine the fracture genesis and chronology. In these analyses, the authors evaluated the relationships between fracture intensity, morphologic attributes, host lithology, fracture cement, and oil-staining. From this analysis, they have been able to characterize variations in Ellenburger tectonic fracture intensity by separating these fractures from karst-related features. In general, the majority of fracturing in the Ellenburger is caused by karst-related fracturing although a considerable percentage is caused by tectonism. These findings underscore the importance of considering the complete geologic evolution of a karst reservoir during exploration and field development programs. The authors have been able to more precisely define the spatial significance of the fracture data sets by use of oriented core from Andector Field. They have also demonstrated the importance of these results for exploration and reservoir development programs in West Texas, and the potential to extrapolate these results around the globe. Given the historic interest in the large hydrocarbon reserves in West Texas carbonate reservoirs, results of this study will have tremendous implications for exploration and production strategies targeting vuggy, fractured carbonate systems not only in West Texas, but throughout the globe.

  12. Texas Yehaa !!!

    DEFF Research Database (Denmark)

    Kjellberg, Kurt

    2001-01-01

    Indtryk fra et besøg på SLA, Special Libraries Associations årlige konference, San Antonio, Texas, USA, 9.-13. juni 2001. "An Information Odyssey: Seizing the Competitive Advantage"......Indtryk fra et besøg på SLA, Special Libraries Associations årlige konference, San Antonio, Texas, USA, 9.-13. juni 2001. "An Information Odyssey: Seizing the Competitive Advantage"...

  13. Characterizing the subsurface geology in and around the U.S. Army Camp Stanley Storage Activity, south-central Texas

    Science.gov (United States)

    Blome, Charles D.; Clark, Allan K.

    2018-02-15

    Several U.S. Geological Survey projects, supported by the National Cooperative Geologic Mapping Program, have used multi-disciplinary approaches over a 14-year period to reveal the surface and subsurface geologic frameworks of the Edwards and Trinity aquifers of central Texas and the Arbuckle-Simpson aquifer of south-central Oklahoma. Some of the project achievements include advancements in hydrostratigraphic mapping, three-dimensional subsurface framework modeling, and airborne geophysical surveys as well as new methodologies that link geologic and groundwater flow models. One area where some of these milestones were achieved was in and around the U.S. Army Camp Stanley Storage Activity, located in north­western Bexar County, Texas, about 19 miles north­west of downtown San Antonio.

  14. Application of advanced reservoir characterization, simulation, and production optimization strategies to maximize recovery in slope and basin clastic reservoirs, West Texas (Delaware Basin), Class III

    Energy Technology Data Exchange (ETDEWEB)

    Dutton, Shirley P.; Flanders, William A.; Zirczy, Helena H.

    2000-05-24

    The objective of this Class 3 project was to demonstrate that detailed reservoir characterization of slope and basin clastic reservoirs in sandstones of the Delaware Mountain Group in the Delaware Basin of West Texas and New Mexico is a cost effective way to recover a higher percentage of the original oil in place through strategic placement of infill wells and geologically based field development. Phase 1 of the project, reservoir characterization, was completed this year, and Phase 2 began. The project is focused on East Ford field, a representative Delaware Mountain Group field that produces from the upper Bell Canyon Formation (Ramsey sandstone). The field, discovered in 1960, is operated by Oral Petco, Inc., as the East Ford unit. A CO{sub 2} flood is being conducted in the unit, and this flood is the Phase 2 demonstration for the project.

  15. DRAFT LANDSAT DATA MOSAIC: MONTGOMERY COUNTY, TEXAS; HARRIS COUNTY, TEXAS; FORT BEND COUNTY, TEXAS; BRAZORIA COUNTY, TEXAS; GALVESTON COUNTY, TEXAS

    Science.gov (United States)

    This is a draft Landsat Data Mosaic, which contains remote sensing information for Montgomery County, Texas Harris County, Texas Fort Bend County, Texas Brazoria County, Texas Galveston County, and Texas Imagery dates on the following dates: October 6, 1999 and September 29, 200...

  16. Application of Advanced Reservoir Characterization, Simulation, and Production Optimization Strategies to Maximize Recovery in Slope and Basin Clastic Reservoirs, West Texas (Delaware Basin)

    Energy Technology Data Exchange (ETDEWEB)

    Dutton, S.P.; Flanders, W.A.; Guzman, J.I.; Zirczy, H.

    1999-06-08

    The objective of this Class III project is to demonstrate that detailed reservoir characterization of slope and basin clastic reservoirs in sandstones of the Delaware Mountain Group in the Delaware Basin of West Texas and New Mexico is a cost-effective way to recover a higher percentage of the original oil in place through geologically based field development. This year the project focused on reservoir characterization of the East Ford unit, a representative Delaware Mountain Group field that produces from the upper Bell Canyon Formation (Ramsey Sandstone). The field, discovered in 1960, is operated by Orla Petco, Inc., as the East Ford unit; it contained an estimated 19.8 million barrels (MMbbl) of original oil in place. Petrophysical characterization of the East Ford unit was accomplished by integrating core and log data and quantifying petrophysical properties from wireline logs. Most methods of petrophysical analysis that had been developed during an earlier study of the Ford Geraldine unit were successfully transferred to the East Ford unit. The approach that was used to interpret water saturation from resistivity logs, however, had to be modified because in some East Ford wells the log-calculated water saturation was too high and inconsistent with observations made during the actual production. Log-porosity to core-porosity transforms and core-porosity to core-permeability transforms were derived from the East Ford reservoir. The petrophysical data were used to map porosity, permeability, net pay, water saturation, mobil-oil saturation, and other reservoir properties.

  17. Towards Composable Concurrency Abstractions

    Directory of Open Access Journals (Sweden)

    Janwillem Swalens

    2014-06-01

    Full Text Available In the past decades, many different programming models for managing concurrency in applications have been proposed, such as the actor model, Communicating Sequential Processes, and Software Transactional Memory. The ubiquity of multi-core processors has made harnessing concurrency even more important. We observe that modern languages, such as Scala, Clojure, or F#, provide not one, but multiple concurrency models that help developers manage concurrency. Large end-user applications are rarely built using just a single concurrency model. Programmers need to manage a responsive UI, deal with file or network I/O, asynchronous workflows, and shared resources. Different concurrency models facilitate different requirements. This raises the issue of how these concurrency models interact, and whether they are composable. After all, combining different concurrency models may lead to subtle bugs or inconsistencies. In this paper, we perform an in-depth study of the concurrency abstractions provided by the Clojure language. We study all pairwise combinations of the abstractions, noting which ones compose without issues, and which do not. We make an attempt to abstract from the specifics of Clojure, identifying the general properties of concurrency models that facilitate or hinder composition.

  18. Modelling Orthorhombic Anisotropic Effects for Reservoir Fracture Characterization of a Naturally Fractured Tight Carbonate Reservoir, Onshore Texas, USA

    Science.gov (United States)

    Osinowo, Olawale Olakunle; Chapman, Mark; Bell, Rebecca; Lynn, Heloise B.

    2017-09-01

    In this study we present a step-by-step theoretical modelling approach, using established seismic wave propagation theories in anisotropic media, to generate unique anisotropic reflection patterns observed from three-dimensional pure-mode pressure (3D-PP), full-azimuth and full-offset seismic reflection data acquired over a naturally fractured tight carbonate field, onshore Texas, USA. Our aim is to gain an insight into the internal structures of the carbonate reservoir responsible for the observed anisotropic reflection patterns. From the generated model we were able to establish that the observed field seismic reflection patterns indicate azimuthal anisotropy in the form of crack induced shear-wave splitting and variation in P-wave velocity with offset and azimuth. Amplitude variation with azimuth (AVAZ) analysis also confirmed multi-crack sets induced anisotropy which is characteristic of orthorhombic symmetry, evident as multiple bright and dim-amplitude azimuth directions as well as complete reversal of bright-amplitude to dim-amplitude azimuth direction as the angle of incidence increases from near (≤15°) to mid (≥30°) offsets. Finally, we fitted the generated P-wave velocity into an ellipse to determine the intensity and orientation (N26E) of the open crack set as well as the direction of the minimum in situ stress axis (N116E) within the reservoir. The derived information served as an aid for the design of horizontal well paths that would intercept open fractures and ensure production optimization of the carbonate reservoir, which was on production decline despite reservoir studies that indicate un-depleted reserves.

  19. Modelling Orthorhombic Anisotropic Effects for Reservoir Fracture Characterization of a Naturally Fractured Tight Carbonate Reservoir, Onshore Texas, USA

    Science.gov (United States)

    Osinowo, Olawale Olakunle; Chapman, Mark; Bell, Rebecca; Lynn, Heloise B.

    2017-11-01

    In this study we present a step-by-step theoretical modelling approach, using established seismic wave propagation theories in anisotropic media, to generate unique anisotropic reflection patterns observed from three-dimensional pure-mode pressure (3D-PP), full-azimuth and full-offset seismic reflection data acquired over a naturally fractured tight carbonate field, onshore Texas, USA. Our aim is to gain an insight into the internal structures of the carbonate reservoir responsible for the observed anisotropic reflection patterns. From the generated model we were able to establish that the observed field seismic reflection patterns indicate azimuthal anisotropy in the form of crack induced shear-wave splitting and variation in P-wave velocity with offset and azimuth. Amplitude variation with azimuth (AVAZ) analysis also confirmed multi-crack sets induced anisotropy which is characteristic of orthorhombic symmetry, evident as multiple bright and dim-amplitude azimuth directions as well as complete reversal of bright-amplitude to dim-amplitude azimuth direction as the angle of incidence increases from near (≤15°) to mid (≥30°) offsets. Finally, we fitted the generated P-wave velocity into an ellipse to determine the intensity and orientation (N26E) of the open crack set as well as the direction of the minimum in situ stress axis (N116E) within the reservoir. The derived information served as an aid for the design of horizontal well paths that would intercept open fractures and ensure production optimization of the carbonate reservoir, which was on production decline despite reservoir studies that indicate un-depleted reserves.

  20. Hydrologic-hydrochemical characterization of Texas Frio Formation used for deep-well injection of chemical wastes

    Energy Technology Data Exchange (ETDEWEB)

    Kreitler, C.W.; Akhter, M.S.; Donnelly, A.C.A.

    1990-01-01

    Hydrologic-hydrochemical investigations were conducted to determine the long-term fate of hazardous chemical waste disposed in the Texas Gulf Coast Tertiary formations by deep-well injection. The study focused on the hydrostatic section of the Frio Formation because it is the host of a very large volume of injected waste and because large databases of formation pressures and water chemistry are available. Three hydrologic regimes exist within the Frio Formation: a shallow fresh to moderately saline water section in the upper 3,000 to 4,000 ft (914 to 1,219 m): an underlying 4,000- to 5,000-ft-thick (1,219 to 1,524-m) section with moderate to high salinities: and a deeper overpressured section with moderate to high salinities. The upper two sections are normally pressured and reflect either fresh-water or brine hydrostatic pressure gradients. Geopressured conditions are encountered as shallow as 6,000 ft (1,829 m). The complexity of the hydrologic environment is enhanced due to extensive depressurization in the 4,000- to 8,000-ft-depth (1,219 to 2,438-m) interval, which presumably results from the estimated production of over 10 billion barrels (208 x 10 to the power of 6 cu m) of oil equivalent and associated brines from the Frio in the past 50 yrs. Because of the higher fluid density and general depressurization in the brine hydrostatic section, upward migration of these brines to shallow fresh ground waters should not occur. Depressured oil and gas fields, however, may become sinks for the injected chemical wastes.

  1. RAP workshop : Buda-TxAPA, Texas, August 27, 2009.

    Science.gov (United States)

    2009-08-27

    Presentation Outline : RAP overview : RAP stockpile survey: state of practice : RAP processing and RAP variability : RAP characterization : RAP mix design : Field performance of Texas high RAP test sections

  2. Temporal Concurrent Constraint Programming

    DEFF Research Database (Denmark)

    Nielsen, Mogens; Palamidessi, Catuscia; Valencia, Frank Dan

    2002-01-01

    The ntcc calculus is a model of non-deterministic temporal concurrent constraint programming. In this paper we study behavioral notions for this calculus. In the underlying computational model, concurrent constraint processes are executed in discrete time intervals. The behavioral notions studied...

  3. Temporal Concurrent Constraint Programming

    DEFF Research Database (Denmark)

    Valencia, Frank Dan

    Concurrent constraint programming (ccp) is a formalism for concurrency in which agents interact with one another by telling (adding) and asking (reading) information in a shared medium. Temporal ccp extends ccp by allowing agents to be constrained by time conditions. This dissertation studies...

  4. Concurrent Software Engineering Project

    Science.gov (United States)

    Stankovic, Nenad; Tillo, Tammam

    2009-01-01

    Concurrent engineering or overlapping activities is a business strategy for schedule compression on large development projects. Design parameters and tasks from every aspect of a product's development process and their interdependencies are overlapped and worked on in parallel. Concurrent engineering suffers from negative effects such as excessive…

  5. Communicating concurrent functions

    NARCIS (Netherlands)

    Diertens, B.

    2011-01-01

    In this article we extend the framework of execution of concurrent functions on different abstract levels from previous work with communication between the concurrent functions. We classify the communications and identify problems that can occur with these communications. We present solutions for

  6. Geological and geochemical characterization of the Lower Cretaceous Pearsall Formation, Maverick Basin, south Texas: A future shale gas resource?

    Science.gov (United States)

    Hackley, Paul C.

    2012-01-01

    As part of an assessment of undiscovered hydrocarbon resources in the northern Gulf of Mexico onshore Mesozoic section, the U.S. Geological Survey (USGS) evaluated the Lower Cretaceous Pearsall Formation of the Maverick Basin, south Texas, as a potential shale gas resource. Wireline logs were used to determine the stratigraphic distribution of the Pearsall Formation and to select available core and cuttings samples for analytical investigation. Samples used for this study spanned updip to downdip environments in the Maverick Basin, including several from the current shale gas-producing area of the Pearsall Formation.The term shale does not adequately describe any of the Pearsall samples evaluated for this study, which included argillaceous lime wackestones from more proximal marine depositional environments in Maverick County and argillaceous lime mudstones from the distal Lower Cretaceous shelf edge in western Bee County. Most facies in the Pearsall Formation were deposited in oxygenated environments as evidenced by the presence of biota preserved as shell fragments and the near absence of sediment laminae, which is probably caused by bioturbation. Organic material is poorly preserved and primarily consists of type III kerogen (terrestrial) and type IV kerogen (inert solid bitumen), with a minor contribution from type II kerogen (marine) based on petrographic analysis and pyrolysis. Carbonate dominates the mineralogy followed by clays and quartz. The low abundance and broad size distribution of pyrite are consistent with the presence of oxic conditions during sediment deposition. The Pearsall Formation is in the dry gas window of hydrocarbon generation (mean random vitrinite reflectance values, Ro = 1.2–2.2%) and contains moderate levels of total organic carbon (average 0.86 wt. %), which primarily resides in the inert solid bitumen. Solid bitumen is interpreted to result from in-situ thermal cracking of liquid hydrocarbon generated from original type II kerogen

  7. Recent (2001-09) hydrologic history and regionalization studies in Texas-Statistical characterization of storms, floods, and rainfall-runoff relations

    Science.gov (United States)

    Asquith, William H.

    2010-01-01

    As part of numerous cooperative studies investigating rainfall and streamflow during 1991-2009 with the Texas Department of Transportation and Texas Commission on Environmental Quality, the U.S. Geological Survey (USGS) published about 20 reports describing either historical streamflow conditions (hydrologic history) in Texas or the results of studies involving regional rainfall and streamflow statistics (regionalization studies). Both types of studies are widely used in engineering and scientific applications. Long-term rainfall and streamflow records are essential for deriving reliable rainfall and streamflow statistics. Whereas the need for such records is regionwide, rainfall and streamflow records are site-specific. The USGS has pioneered ways to mathematically transfer site-specific rainfall and streamflow information to provide regional statistical models. In addition to publishing reports describing historical hydrologic data at many monitored locations throughout Texas, the USGS has published reports describing regional models for estimating rainfall and streamflow statistics at unmonitored locations. The primary objectives of these regionalization studies were to provide historical perspectives of streamflow conditions in Texas or estimates of specific statistics of rainfall or streamflow. Statistics such as 6-hour, 1-percent annual exceedance rainfall (a large storm) or 2-percent annual exceedance streamflow (a substantial flood) can be estimated for locations lacking sufficient direct observations of rainfall and streamflow data. This fact sheet provides a brief synopsis of 12 recent (2001-09) USGS hydrologic history and regionalization studies in Texas organized thematically and chronologically.

  8. Treasured Texas Theaters

    Science.gov (United States)

    Horton, Anita

    2012-01-01

    Dallas artist Jon Flaming's deep love of Texas is evident in his paintings and sculpture. Although he has created one sculptural Texas theater, his work primarily showcases old Texas barbershops, vacant homes, and gas stations. In this article, the author describes how her students, inspired by Flaming's works, created three-dimensional historical…

  9. Clicks, Concurrency and Khoisan

    OpenAIRE

    Bradfield, Julian

    2014-01-01

    I propose that the notions of segment and phoneme be enriched to allow some concurrent clustering, even in classical theories. My main application is the Khoisan language !Xóõ, where treating clicks as phonemes concurrent with phonemic accompaniments allows the inventory size to be radically reduced, so solving the problems of many unsupported contrasts. I show also how phonological processes of !Xóõ can be described more elegantly in this setting, with support from metalinguistic evidence an...

  10. Soft Concurrent Constraint Programming

    OpenAIRE

    Bistarelli, S.; Montanari, U.; Rossi, F.

    2002-01-01

    Soft constraints extend classical constraints to represent multiple consistency levels, and thus provide a way to express preferences, fuzziness, and uncertainty. While there are many soft constraint solving formalisms, even distributed ones, by now there seems to be no concurrent programming framework where soft constraints can be handled. In this paper we show how the classical concurrent constraint (cc) programming framework can work with soft constraints, and we also propose an extension ...

  11. Domain Theory for Concurrency

    DEFF Research Database (Denmark)

    Nygaard, Mikkel

    Concurrent computation can be given an abstract mathematical treatment very similar to that provided for sequential computation by domain theory and denotational semantics of Scott and Strachey. A simple domain theory for concurrency is presented. Based on a categorical model of linear logic and ...... towards more expressive languages than HOPLA and Affine HOPLA—in particular concerning extensions to cover independence models. The thesis concludes with a discussion of related work towards a fully fledged domain theory for concurrency.......Concurrent computation can be given an abstract mathematical treatment very similar to that provided for sequential computation by domain theory and denotational semantics of Scott and Strachey. A simple domain theory for concurrency is presented. Based on a categorical model of linear logic...... equivalence. One language, called HOPLA for Higher-Order Process LAnguage, derives from an exponential of linear logic. It can be viewed as an extension of the simply-typed lambda calculus with CCS-like nondeterministic sum and prefix operations, in which types express the form of computation path of which...

  12. Algebraic topology and concurrency

    DEFF Research Database (Denmark)

    Fajstrup, Lisbeth; Raussen, Martin; Goubault, Eric

    2006-01-01

    We show in this article that some concepts from homotopy theory, in algebraic topology,are relevant for studying concurrent programs. We exhibit a natural semantics of semaphore programs, based on partially ordered topological spaces, which are studied up to “elastic deformation” or homotopy...... differences between ordinary and directed homotopy through examples. We also relate the topological view to a combinatorial view of concurrent programs closer to transition systems, through the notion of a cubical set. Finally we apply some of these concepts to the proof of the safeness of a two......-phase protocol, well-known and used in concurrent database theory. We end up with a list of problems from both a mathematical and a computer-scientific point of view....

  13. Characterization of developmental immature fiber (im) mutant and Texas Marker-1 (TM-1) cotton fibers by Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) spectroscopy

    Science.gov (United States)

    The immature fiber (im) mutant is one type of cotton fiber mutants with unique characteristics of non-fluffy cotton bolls. Compared to its near-isogenic wild type Texas Marker-1 (TM-1), im fiber has thin secondary cell wall and is less mature. In this work, we applied the previously proposed princip...

  14. An Integrated Hydrogeologic and Geophysical Investigation to Characterize the Hydrostratigraphy of the Edwards Aquifer in an Area of Northeastern Bexar County, Texas

    Science.gov (United States)

    Shah, Sachin D.; Smith, Bruce D.; Clark, Allan K.; Payne, Jason

    2008-01-01

    In August 2007, the U.S. Geological Survey, in cooperation with the San Antonio Water System, did a hydrogeologic and geophysical investigation to characterize the hydrostratigraphy (hydrostratigraphic zones) and also the hydrogeologic features (karst features such as sinkholes and caves) of the Edwards aquifer in a 16-square-kilometer area of northeastern Bexar County, Texas, undergoing urban development. Existing hydrostratigraphic information, enhanced by local-scale geologic mapping in the area, and surface geophysics were used to associate ranges of electrical resistivities obtained from capacitively coupled (CC) resistivity surveys, frequency-domain electromagnetic (FDEM) surveys, time-domain electromagnetic (TDEM) soundings, and two-dimensional direct-current (2D-DC) resistivity surveys with each of seven hydrostratigraphic zones (equivalent to members of the Kainer and Person Formations) of the Edwards aquifer. The principal finding of this investigation is the relation between electrical resistivity and the contacts between the hydrostratigraphic zones of the Edwards aquifer and the underlying Trinity aquifer in the area. In general, the TDEM data indicate a two-layer model in which an electrical conductor underlies an electrical resistor, which is consistent with the Trinity aquifer (conductor) underlying the Edwards aquifer (resistor). TDEM data also show the plane of Bat Cave fault, a well-known fault in the area, to be associated with a local, nearly vertical zone of low resistivity that provides evidence, although not definitive, for Bat Cave fault functioning as a flow barrier, at least locally. In general, the CC resistivity, FDEM survey, and 2D-DC resistivity survey data show a sharp electrical contrast from north to south, changing from high resistivity to low resistivity across Bat Cave fault as well as possible karst features in the study area. Interpreted karst features that show relatively low resistivity within a relatively high

  15. endurance, resistance, concurrent

    African Journals Online (AJOL)

    Khalid Mohamadzadeh Salamat

    2016-01-23

    Jan 23, 2016 ... circuit resistance training don't change serum concentrations of cytokines (IL-1b, IL6, IL8, IL10 and TNF-a).8. Finally, exercise training, especially endurance type train- ing, can decrease some of inflammatory indices. Moreover, in this case endurance and somedeal concurrent training has more effects on ...

  16. A Concurrent Logical Relation

    DEFF Research Database (Denmark)

    Birkedal, Lars; Sieczkowski, Filip; Thamsborg, Jacob Junker

    2012-01-01

    We present a logical relation for showing the correctness of program transformations based on a new type-and-effect system for a concurrent extension of an ML-like language with higher-order functions, higher-order store and dynamic memory allocation. We show how to use our model to verify a number...

  17. Correctness of concurrent processes

    NARCIS (Netherlands)

    E.R. Olderog (Ernst-Rüdiger)

    1989-01-01

    textabstractA new notion of correctness for concurrent processes is introduced and investigated. It is a relationship P sat S between process terms P built up from operators of CCS [Mi 80], CSP [Ho 85] and COSY [LTS 79] and logical formulas S specifying sets of finite communication sequences as in

  18. Building Safe Concurrency Abstractions

    DEFF Research Database (Denmark)

    Madsen, Ole Lehrmann

    2014-01-01

    as well as programming, and we describe how this has had an impact on the design of the language. Although Beta supports the definition of high-level concurrency abstractions, the use of these rely on the discipline of the programmer as is the case for Java and other mainstream OO languages. We introduce...

  19. West Texas array experiment: Noise and source characterization of short-range infrasound and acoustic signals, along with lab and field evaluation of Intermountain Laboratories infrasound microphones

    Science.gov (United States)

    Fisher, Aileen

    The term infrasound describes atmospheric sound waves with frequencies below 20 Hz, while acoustics are classified within the audible range of 20 Hz to 20 kHz. Infrasound and acoustic monitoring in the scientific community is hampered by low signal-to-noise ratios and a limited number of studies on regional and short-range noise and source characterization. The JASON Report (2005) suggests the infrasound community focus on more broad-frequency, observational studies within a tactical distance of 10 km. In keeping with that recommendation, this paper presents a study of regional and short-range atmospheric acoustic and infrasonic noise characterization, at a desert site in West Texas, covering a broad frequency range of 0.2 to 100 Hz. To spatially sample the band, a large number of infrasound gauges was needed. A laboratory instrument analysis is presented of the set of low-cost infrasound sensors used in this study, manufactured by Inter-Mountain Laboratories (IML). Analysis includes spectra, transfer functions and coherences to assess the stability and range of the gauges, and complements additional instrument testing by Sandia National Laboratories. The IMLs documented here have been found reliably coherent from 0.1 to 7 Hz without instrument correction. Corrections were built using corresponding time series from the commercially available and more expensive Chaparral infrasound gauge, so that the corrected IML outputs were able to closely mimic the Chaparral output. Arrays of gauges are needed for atmospheric sound signal processing. Our West Texas experiment consisted of a 1.5 km aperture, 23-gauge infrasound/acoustic array of IMLs, with a compact, 12 m diameter grid-array of rented IMLs at the center. To optimize signal recording, signal-to-noise ratio needs to be quantified with respect to both frequency band and coherence length. The higher-frequency grid array consisted of 25 microphones arranged in a five by five pattern with 3 meter spacing, without

  20. Texas motorcycle crash countermeasure workshop.

    Science.gov (United States)

    2013-06-01

    The Texas Department of Transportation (TxDOT) contracted with the Texas A&M : Transportation Institute (TTI) to develop a 5-year strategic plan for improving motorcycle safety : in the State of Texas. The Texas Strategic Action Plan for Motorcycl...

  1. Characterization of streamflow, suspended sediment, and nutrients entering Galveston Bay from the Trinity River, Texas, May 2014–December 2015

    Science.gov (United States)

    Lucena, Zulimar; Lee, Michael T.

    2017-02-21

    The U.S. Geological Survey (USGS), in cooperation with the Texas Water Development Board and the Galveston Bay Estuary Program, collected streamflow and water-quality data at USGS streamflow-gaging stations in the lower Trinity River watershed from May 2014 to December 2015 to characterize and improve the current understanding of the quantity and quality of freshwater inflow entering Galveston Bay from the Trinity River. Continuous streamflow records at four USGS streamflow-gaging stations were compared to quantify differences in streamflow magnitude between upstream and downstream reaches of the lower Trinity River. Water-quality conditions were characterized from discrete nutrient and sedi­ment samples collected over a range of hydrologic conditions at USGS streamflow-gaging station 08067252 Trinity River at Wallisville, Tex. (hereinafter referred to as the “Wallisville site”), approximately 4 river miles upstream from where the Trinity River enters Galveston Bay.Based on streamflow records, annual mean outflow from Livingston Dam into the lower Trinity River was 2,240 cubic feet per second (ft3/s) in 2014 and 22,400 ft3/s in 2015, the second lowest and the highest, respectively, during the entire period of record (1966–2015). During this study, only about 54 percent of the total volume measured at upstream sites was accounted for at the Wallisville site as the Trinity River enters Galveston Bay. This difference in water volumes between upstream sites and the Wallisville site indicates that at high flows a large part of the volume released from Lake Livingston does not reach Galveston Bay through the main channel of the Trinity River. These findings indicate that water likely flows into wetlands and water bodies surrounding the main channel of the Trinity River before reaching the Wallisville site and is being stored or discharged through other channels that flow directly into Galveston Bay.To characterize suspended-sediment concentrations and loads in

  2. Long-term evolution of Wink sinkholes in West Texas observed by high-resolution satellite imagery

    Science.gov (United States)

    Kim, J. W.; Lu, Z.

    2016-12-01

    Sinkhole is ground depression and/or collapse over the subsurface cavity in the karst terrain underlain by the carbonates, evaporites, and other soluble soils and rocks. The geohazards have been considered as a "hidden threat" to human life, infrastructures, and properties. The Delaware Basin of West Texas in the southwest part of the Permian Basin contains one of the greatest accumulations of evaporites in the United States. Sinkholes in West Texas have been developed by the dissolution of the subsurface evaporite deposits that come in contact with groundwater. Two Wink sinkholes in Wink, Texas, were developed in 1980 and 2002, respectively. However, monitoring the sinkholes in no man's lands has been challenging due to the lack of availability of high-resolution and temporally dense acquisitions. We employ aerial photography and radar satellite imagery to measure the long-term deformation from early 2000 and characterize the inherent hydrogeology that is closely related to sinkhole collapse and subsidence. Furthermore, data on oil/gas production and water injection into the subsurface as well as ground water level are analyzed to study their effects on the concurrent unstable ground surface in Wink sinkholes. Our study will provide invaluable information to understand the mechanism of sinkhole development and mitigate the catastrophic outcomes of the geohazards.

  3. Hydrologic-hydrochemical characterization of Texas Gulf Coast saline formations used for deep-well injection of chemical wastes. Final report, January 1987-July 1988

    Energy Technology Data Exchange (ETDEWEB)

    Kreitler, C.W.; Akhter, M.S.; Donnelly, A.C.A.

    1988-08-01

    About 70% of the Class I injection wells in the United States are located in the Gulf Coast. This report presents the results of investigations into fluid-migration potential, direction, and velocities in the regional hydrologic environment of the Texas Gulf Coast Tertiary formations, and geochemical interactions that may be occurring. The study focused on the Frio Formation as it is the target of a very large waste-injection volume as well as a large data base of formation pressures and water chemistry.

  4. Mastering concurrency in Go

    CERN Document Server

    Kozyra, Nathan

    2014-01-01

    A practical approach covering everything you need to know to get up and running with Go, starting with the basics and imparting increasingly more detail as the examples and topics become more complicated. The book utilizes a casual, conversational style, rife with actual code and historical anecdotes for perspective, as well as usable and extensible example applications. This book is intended for systems developers and programmers with some experience in either Go and/or concurrent programming who wish to become fluent in building high-performance applications that scale by leveraging single-c

  5. Morse Theory and Concurrency

    DEFF Research Database (Denmark)

    Wisniewski, Rafal

    2003-01-01

    The work is intended to provide some insight about concurrency theory using ideas from geometry and algebraic topology. We define a topological space containing all traces of execution of the computer program and the information about how time flows. This is the main difference with standard...... topological reasoning in which there is no information about relation "in time" among points. The main task is to define equivalence of paths reflecting execution of a program. We use the notion of homotopy history equivalence relation. The model space considered in this work is a differentiable manifold...

  6. Public Outreach of the South Texas Health Physic Society and Texas A&M University Nuclear Engineering Department

    Energy Technology Data Exchange (ETDEWEB)

    Berry, R. O.

    2003-02-24

    In a cooperative effort of the members of the South Texas Chapter of the Heath Physics Society (STC-HPS) and the Texas A&M University Nuclear Engineering Department, great efforts have been made to reach out and provide educational opportunities to members of the general public, school age children, and specifically teachers. These efforts have taken the form of Science Teacher Workshops (STW), visits to schools all over the state of Texas, public forums, and many other educational arenas. A major motivational factor for these most recent efforts can be directly tied to the attempt of the State of Texas to site a low-level radioactive waste facility near Sierra Blanca in West Texas. When the State of Texas first proposed to site a low level radioactive waste site after the Low-Level Radioactive Waste Policy Act of 1980 was passed, many years of political struggle ensued. Finally, a site at Sierra Blanca in far West Texas was selected for study and characterization for a disposal site for waste generated in the Texas Compact states of Maine, Vermont and Texas. During this process, the outreach to and education of the local public became a paramount issue.

  7. Sylvatic trichinellosis in Texas

    Directory of Open Access Journals (Sweden)

    Pence D.B.

    2001-06-01

    Full Text Available There are no published reports of domestic or sylvatic trichinellosis in Texas. The aim of the present survey was to determine the presence of Trichinella species in selected representative species of potential wildlife reservoirs in southern Texas. In 1998-99, tongues of 211 wild mammals were collected in southern Texas: 154 coyotes (Canis latrans, three bobcats (Lynx rufus, 32 racoons (Procyon lotor, 1 3 opossum (Didelphis marsupialis, four ocelots (Leopardus pardalis and five wild boars (Sus scrofa. Presence of Trichinella sp. larvae was investigated by artificial digestion and larvae of positive samples were identified at the species level by a multiple-polymerase chain reaction analysis. Nine (5.8 % coyotes had trichinellosis ; in the muscles of seven of these coyotes, the larvae were identified as Trichinella murrelli. This is the first report of sylvatic trichinellosis in Texas.

  8. Texas MODIS Experiment 2001

    Data.gov (United States)

    National Aeronautics and Space Administration — The Terra eXperiment 2001 was conducted from Kelly AFB San Antonio, Texas from March 14 to April 4 to improve calibration of the MODerate resolution Imaging...

  9. Typhus in Texas

    Centers for Disease Control (CDC) Podcasts

    2017-07-06

    Dr. Kristy Murray, an associate professor in pediatrics and assistant dean of the National School of Tropical Medicine at Baylor College of Medicine and Texas Children’s Hospital, discusses increased cases of typhus in southern Texas.  Created: 7/6/2017 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 7/6/2017.

  10. Concurrent engineering research center

    Science.gov (United States)

    Callahan, John R.

    1995-01-01

    The projects undertaken by The Concurrent Engineering Research Center (CERC) at West Virginia University are reported and summarized. CERC's participation in the Department of Defense's Defense Advanced Research Project relating to technology needed to improve the product development process is described, particularly in the area of advanced weapon systems. The efforts committed to improving collaboration among the diverse and distributed health care providers are reported, along with the research activities for NASA in Independent Software Verification and Validation. CERC also takes part in the electronic respirator certification initiated by The National Institute for Occupational Safety and Health, as well as in the efforts to find a solution to the problem of producing environment-friendly end-products for product developers worldwide. The 3M Fiber Metal Matrix Composite Model Factory Program is discussed. CERC technologies, facilities,and personnel-related issues are described, along with its library and technical services and recent publications.

  11. Economic explanations for concurrent sourcing

    DEFF Research Database (Denmark)

    Mols, Niels Peter

    2010-01-01

    Concurrent sourcing is a phenomenon where firms simultaneously make and buy the same good, i.e. they simultaneously use the governance modes of market and hierarchy. Though concurrent sourcing seems to be widespread, few studies of sourcing have focused on this phenomenon. This paper reviews diff...... different economic explanations for why firms use concurrent sourcing. The distinctive features of the explanations are compared, and it is discussed how they may serve as a springboard for research on concurrent sourcing. Managerial implications are also offered....

  12. Measuring coherence with entanglement concurrence

    Science.gov (United States)

    Qi, Xianfei; Gao, Ting; Yan, Fengli

    2017-07-01

    Quantum coherence is a fundamental manifestation of the quantum superposition principle. Recently, Baumgratz et al (2014 Phys. Rev. Lett. 113 140401) presented a rigorous framework to quantify coherence from the view of theory of physical resource. Here we propose a new valid quantum coherence measure which is a convex roof measure, for a quantum system of arbitrary dimension, essentially using the generalized Gell-Mann matrices. Rigorous proof shows that the proposed coherence measure, coherence concurrence, fulfills all the requirements dictated by the resource theory of quantum coherence measures. Moreover, strong links between the resource frameworks of coherence concurrence and entanglement concurrence is derived, which shows that any degree of coherence with respect to some reference basis can be converted to entanglement via incoherent operations. Our work provides a clear quantitative and operational connection between coherence and entanglement based on two kinds of concurrence. This new coherence measure, coherence concurrence, may also be beneficial to the study of quantum coherence.

  13. Transforming Developmental Education in Texas

    Science.gov (United States)

    Journal of Developmental Education, 2014

    2014-01-01

    In recent years, with support from the Texas Legislature, the Texas Higher Education Coordinating Board has funded various developmental education initiatives, including research and evaluation efforts, to help Texas public institutions of higher education provide more effective programs and services to underprepared students. Based on evaluation…

  14. Forests of east Texas, 2015

    Science.gov (United States)

    Kerry J.W. Dooley

    2017-01-01

    This resource update provides an overview of forest resources in east Texas based on an inventory conducted by the U.S. Forest Service, Forest Inventory and Analysis (FIA) program at the Southern Research Station (SRS) in cooperation with Texas A&M Forest Service. The 254 counties of Texas are consolidated into seven FIA survey units—Southeast (unit 1),...

  15. Characterization of Developmental Immature Fiber ( im) Mutant and Texas Marker-1 (TM-1) Cotton Fibers Using Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) Spectroscopy.

    Science.gov (United States)

    Liu, Yongliang; Kim, Hee-Jin

    2017-07-01

    The immature fiber ( im) mutant is one type of cotton fiber mutant with unique characteristics of non-fluffy cotton bolls. Compared to its near-isogenic wild type Texas Marker-1 (TM-1), im fiber has a thin secondary cell wall and is less mature. In this work, we applied the previously proposed principal component analysis (PCA) and simple algorithms to analyze the attenuated total reflection Fourier transform infrared (ATR FT-IR) spectra of developmental im and TM-1 fibers. The results from these approaches could not effectively and consistently indicate the inherent difference between TM-1 and im fibers at the same developmental stage. The difference between TM-1 and corresponding im fibers was detected when comparing the normalized intensity variations of the 730 cm-1 bands. The 730 cm-1 band intensities in developmental im fibers are temporally lower than those in developmental TM-1 fibers although they became similar when the TM-1 and im fibers are fully mature. The observation might imply the likelihood of temporal reduction of amorphous regions in developmental im fibers rather than in developmental TM-1 fibers.

  16. Tornado from Texas.

    Science.gov (United States)

    Vail, Kathleen

    1996-01-01

    Santa Fe School Superintendent Yvonne Gonzales, the "Texas Tornado," was hired to fix a 40% student-dropout rate and a white/Hispanic gap in achievement test scores. Gonzales is an avid integrationist; relies on humor, appeasement, and persuasion tactics; and has alienated some school employees by increasing central office…

  17. Outdoor Education in Texas.

    Science.gov (United States)

    Myers, Ray H.

    In Dallas in 1970, high school outdoor education began as a cocurricular woods and waters boys' club sponsored by a community sportsman. Within one year, it grew into a fully accredited, coeducational, academic course with a curriculum devoted to the study of wildlife in Texas, ecology, conservation, hunting, firearm safety, fishing, boating and…

  18. Red-cockaded woodpecker population trends and management on Texas national forests

    Science.gov (United States)

    Richard N. Conner; D. Craig Rudolph

    1994-01-01

    Red-cockaded Woodpecker (Picoides borealis) population trends and concurrent management on four national forests in eastern Texas were evaluated from 1983 through 1993. Following years of decline, populations stabilized and began to increase after intensive management efforts were initiated. Management activities included control of hardwood midstory and understory,...

  19. Catalogue of Texas spiders

    Science.gov (United States)

    Dean, David Allen

    2016-01-01

    Abstract This catalogue lists 1,084 species of spiders (three identified to genus only) in 311 genera from 53 families currently recorded from Texas and is based on the “Bibliography of Texas Spiders” published by Bea Vogel in 1970. The online list of species can be found at http://pecanspiders.tamu.edu/spidersoftexas.htm. Many taxonomic revisions have since been published, particularly in the families Araneidae, Gnaphosidae and Leptonetidae. Many genera in other families have been revised. The Anyphaenidae, Ctenidae, Hahniidae, Nesticidae, Sicariidae and Tetragnathidae were also revised. Several families have been added and others split up. Several genera of Corinnidae were transferred to Phrurolithidae and Trachelidae. Two genera from Miturgidae were transferred to Eutichuridae. Zoridae was synonymized under Miturgidae. A single species formerly in Amaurobiidae is now in the Family Amphinectidae. Some trapdoor spiders in the family Ctenizidae have been transferred to Euctenizidae. Gertsch and Mulaik started a list of Texas spiders in 1940. In a letter from Willis J. Gertsch dated October 20, 1982, he stated “Years ago a first listing of the Texas fauna was published by me based largely on Stanley Mulaik material, but it had to be abandoned because of other tasks.” This paper is a compendium of the spiders of Texas with distribution, habitat, collecting method and other data available from revisions and collections. This includes many records and unpublished data (including data from three unpublished studies). One of these studies included 16,000 adult spiders belonging to 177 species in 29 families. All specimens in that study were measured and results are in the appendix. Hidalgo County has 340 species recorded with Brazos County at 323 and Travis County at 314 species. These reflect the amount of collecting in the area. PMID:27103878

  20. True Concurrency can be Traced

    DEFF Research Database (Denmark)

    Engberg, Uffe Henrik

    1990-01-01

    In this paper sets of labelled partial orders are employed as fundamental mathematical entities for modelling nondeterministic and concurrent processes thereby obtaining so-called noninterleaving semantics. Based on closures of sets of labelled partial orders, a simple algebraic language with ref......In this paper sets of labelled partial orders are employed as fundamental mathematical entities for modelling nondeterministic and concurrent processes thereby obtaining so-called noninterleaving semantics. Based on closures of sets of labelled partial orders, a simple algebraic language...

  1. Modal abstractions of concurrent behavior

    DEFF Research Database (Denmark)

    Nielson, Flemming; Nanz, Sebastian; Nielson, Hanne Riis

    2011-01-01

    as refutation of safety and liveness properties. However, the algorithmic construction of finite abstractions from potentially infinite concurrent processes is a missing link that prevents their more widespread usage for model checking of concurrent systems. Our algorithm is a worklist algorithm using concepts...... and that supports the definition of a 3-valued modal logic for validating as well as refuting properties of systems. The construction is illustrated on a few examples, including the Ingemarsson-Tang-Wong key agreement protocol. © 2011 ACM....

  2. Concurrent engineering: effective deployment strategies

    Directory of Open Access Journals (Sweden)

    Unny Menon

    1996-12-01

    Full Text Available This paper provides a comprehensive insight into current trends and developments in Concurrent Engineering for integrated development of products and processes with the goal of completing the entire cycle in a shorter time, at lower overall cost and with fewer engineering design changes after product release. The evolution and definition of Concurrent Engineering are addressed first, followed by a concise review of the following elements of the concurrent engineering approach to product development: Concept Development: The Front-End Process, identifying Customer Needs and Quality Function Deployment, Establishing Product Specifications, Concept Selection, Product Architecture, Design for Manufacturing, Effective Rapid Prototyping, and The Economics of Product Development. An outline of a computer-based tutorial developed by the authors and other graduate students funded by NASA ( accessible via the world-wide-web . is provided in this paper. A brief discussion of teamwork for successful concurrent engineering is included, t'ase histories of concurrent engineering implementation at North American and European companies are outlined with references to textbooks authored by Professor Menon and other writers. A comprehensive bibliography on concurrent engineering is included in the paper.

  3. Application of Surface Geophysical Methods, With Emphasis on Magnetic Resonance Soundings, to Characterize the Hydrostratigraphy of the Brazos River Alluvium Aquifer, College Station, Texas, July 2006 - A Pilot Study

    Science.gov (United States)

    Shah, Sachin D.; Kress, Wade H.; Legchenko, Anatoly

    2007-01-01

    The U.S. Geological Survey, in cooperation with the Texas Water Development Board, used surface geophysical methods at the Texas A&M University Brazos River Hydrologic Field Research Site near College Station, Texas, in a pilot study, to characterize the hydrostratigraphic properties of the Brazos River alluvium aquifer and determine the effectiveness of the methods to aid in generating an improved ground-water availability model. Three non-invasive surface geophysical methods were used to characterize the electrical stratigraphy and hydraulic properties and to interpret the hydrostratigraphy of the Brazos River alluvium aquifer. Two methods, time-domain electromagnetic (TDEM) soundings and two-dimensional direct-current (2D-DC) resistivity imaging, were used to define the lateral and vertical extent of the Ships clay, the alluvium of the Brazos River alluvium aquifer, and the underlying Yegua Formation. Magnetic resonance sounding (MRS), a recently developed geophysical method, was used to derive estimates of the hydrologic properties including percentage water content and hydraulic conductivity. Results from the geophysics study demonstrated the usefulness of combined TDEM, 2D-DC resistivity, and MRS methods to reduce the need for additional boreholes in areas with data gaps and to provide more accurate information for ground-water availability models. Stratigraphically, the principal finding of this study is the relation between electrical resistivity and the depth and thickness of the subsurface hydrostratigraphic units at the site. TDEM data defined a three-layer electrical stratigraphy corresponding to a conductor-resistor-conductor that represents the hydrostratigraphic units - the Ships clay, the alluvium of the Brazos River alluvium aquifer, and the Yegua Formation. Sharp electrical boundaries occur at about 4 to 6 and 20 to 22 meters below land surface based on the TDEM data and define the geometry of the more resistive Brazos River alluvium aquifer

  4. CENSUS AND STATISTICAL CHARACTERIZATION OF SOIL AND WATER QUALITY AT ABANDONED AND OTHER CENTRALIZED AND COMMERCIAL DRILLING-FLUID DISPOSAL SITES IN LOUISIANA, NEW MEXICO, OKLAHOMA, AND TEXAS

    Energy Technology Data Exchange (ETDEWEB)

    Alan R. Dutton; H. Seay Nance

    2003-06-01

    Commercial and centralized drilling-fluid disposal (CCDD) sites receive a portion of spent drilling fluids for disposal from oil and gas exploration and production (E&P) operations. Many older and some abandoned sites may have operated under less stringent regulations than are currently enforced. This study provides a census, compilation, and summary of information on active, inactive, and abandoned CCDD sites in Louisiana, New Mexico, Oklahoma, and Texas, intended as a basis for supporting State-funded assessment and remediation of abandoned sites. Closure of abandoned CCDD sites is within the jurisdiction of State regulatory agencies. Sources of data used in this study on abandoned CCDD sites mainly are permit files at State regulatory agencies. Active and inactive sites were included because data on abandoned sites are sparse. Onsite reserve pits at individual wells for disposal of spent drilling fluid are not part of this study. Of 287 CCDD sites in the four States for which we compiled data, 34 had been abandoned whereas 54 were active and 199 were inactive as of January 2002. Most were disposal-pit facilities; five percent were land treatment facilities. A typical disposal-pit facility has fewer than 3 disposal pits or cells, which have a median size of approximately 2 acres each. Data from well-documented sites may be used to predict some conditions at abandoned sites; older abandoned sites might have outlier concentrations for some metal and organic constituents. Groundwater at a significant number of sites had an average chloride concentration that exceeded nonactionable secondary drinking water standard of 250 mg/L, or a total dissolved solids content of >10,000 mg/L, the limiting definition for underground sources of drinking water source, or both. Background data were lacking, however, so we did not determine whether these concentrations in groundwater reflected site operations. Site remediation has not been found necessary to date for most abandoned

  5. E-cigarette use among Texas youth: Results from the 2014 Texas Youth Tobacco Survey.

    Science.gov (United States)

    Cooper, Maria; Case, Kathleen R; Loukas, Alexandra

    2015-11-01

    Several characteristics of electronic cigarettes (e-cigarettes), such as candy flavorings, are worrisome for attracting youth. The current cross-sectional study uses data on e-cigarette use from the 2014 Texas Youth Tobacco Survey (TYTS), a representative statewide sample of Texas middle school and high school students. This study's aims are to determine the prevalence of e-cigarette use, including rates of concurrent use with other tobacco products among Texas youth and to describe the demographic and tobacco use differences between e-cigarette users and non-users. Participants were 13,602 6th through 12th grade students in Texas. Descriptive statistics were generated to determine the prevalence of current and lifetime e-cigarette use and to determine the prevalence of demographic characteristics across e-cigarette usage groups. Logistic regression analyses were conducted to examine differences in demographic characteristics, cigarette use in the home, and tobacco use behaviors for e-cigarette users versus non-users. Almost one quarter of all middle and high school students reported lifetime e-cigarette use and 14.0% were past 30-day users of these products. Current e-cigarette users were more likely to be high school students, white and male than non-current users. Both current and lifetime e-cigarette users were also more likely than their peers to use other tobacco products, although 24.2% of current e-cigarette users had never smoked conventional cigarettes, and 7.3% had never used any other type of tobacco product besides an e-cigarette. Findings highlight the urgency to regulate e-cigarettes as well as to include these products in tobacco prevention programs. Copyright © 2015 Elsevier Ltd. All rights reserved.

  6. Abandoned Texas oil fields

    Energy Technology Data Exchange (ETDEWEB)

    1980-12-01

    Data for Texas abandoned oil fields were primarily derived from two sources: (1) Texas Railroad Commission (TRRC), and (2) Dwight's ENERGYDATA. For purposes of this report, abandoned oil fields are defined as those fields that had no production during 1977. The TRRC OILMASTER computer tapes were used to identify these abandoned oil fields. The tapes also provided data on formation depth, gravity of oil production, location (both district and county), discovery date, and the cumulative production of the field since its discovery. In all, the computer tapes identified 9211 abandoned fields, most of which had less than 250,000 barrel cumulative production. This report focuses on the 676 abandoned onshore Texas oil fields that had cumulative production of over 250,000 barrels. The Dwight's ENERGYDATA computer tapes provided production histories for approximately two-thirds of the larger fields abandoned in 1966 and thereafter. Fields which ceased production prior to 1966 will show no production history nor abandonment date in this report. The Department of Energy hopes the general availability of these data will catalyze the private sector recovery of this unproduced resource.

  7. Managing Complexity of Control Software through Concurrency

    NARCIS (Netherlands)

    Hilderink, G.H.

    2005-01-01

    In this thesis, we are concerned with the development of concurrent software for embedded systems. The emphasis is on the development of control software. Embedded systems are concurrent systems whereby hardware and software communicate with the concurrent world. Concurrency is essential, which

  8. Concurrency & Asynchrony in Declarative Workflows

    DEFF Research Database (Denmark)

    Debois, Søren; Hildebrandt, Thomas; Slaats, Tijs

    2015-01-01

    semantics, which is a necessary foundation for asynchronously executing distributed processes, is not obvious for declarative formalisms and is so far virtually unexplored. This is in stark contrast to the very successful Petri-net–based process languages, which have an inherent notion of concurrency...... of concurrency in DCR Graphs admits asynchronous execution of declarative workflows both conceptually and by reporting on a prototype implementation of a distributed declarative workflow engine. Both the theoretical development and the implementation is supported by an extended example; moreover, the theoretical...

  9. Concurrent Product & Supply Chain Creation

    DEFF Research Database (Denmark)

    Gubi, Ebbe

    .e. by creating Focused Supply Chains. At the same time, customer satisfaction can be increased. As a second means to achieving a better fit between product and supply chain, the firm can deploy Design for Logistics, the discipline of considering the supply chain during product creation. The thesis sets out...... and supply chains should be created concurrently and integrated. The concept of Concurrent Product & Supply Chain Creation is introduced, and the two main components Focused Supply Chains and Design For Logistics are explained and exemplified by use of Bang & Olufsen....

  10. Flow paths in the Edwards aquifer, northern Medina and northeastern Uvalde counties, Texas, based on hydrologic identification and geochemical characterization and simulation

    Science.gov (United States)

    Clark, Allan K.; Journey, Celeste

    2006-01-01

    The U.S. Geological Survey, in cooperation with the San Antonio Water System, conducted a 4-year study during 2001– 04 to identify major ground-water flow paths in the Edwards aquifer in northern Medina and northeastern Uvalde Counties, Texas. The study involved use of geologic structure, surfacewater and ground-water data, and geochemistry to identify ground-water flow paths. Relay ramps and associated faulting in northern Medina County appear to channel ground-water flow along four distinct flow paths that move water toward the southwest. The northwestern Medina flow path is bounded on the north by the Woodard Cave fault and on the south by the Parkers Creek fault. Water moves downdip toward the southwest until the flow encounters a cross fault along Seco Creek. This barrier to flow might force part or most of the flow to the south. Departure hydrographs for two wells and discharge departure for a streamflow-gaging station provide evidence for flow in the northwestern Medina flow path. The north-central Medina flow path (northern part) is bounded by the Parkers Creek fault on the north and the Medina Lake fault on the south. The adjacent north-central Medina flow path (southern part) is bounded on the north by the Medina Lake fault and on the south by the Diversion Lake fault. The north-central Medina flow path is separated into a northern and southern part because of water-level differences. Ground water in both parts of the northcentral Medina flow path moves downgradient (and down relay ramp) from eastern Medina County toward the southwest. The north-central Medina flow path is hypothesized to turn south in the vicinity of Seco Creek as it begins to be influenced by structural features. Departure hydrographs for four wells and Medina Lake and discharge departure for a streamflow-gaging station provide evidence for flow in the north-central Medina flow path. The south-central Medina flow path is bounded on the north by the Seco Creek and Diversion Lake faults

  11. Solar Hot Water for Motor Inn--Texas City, Texas

    Science.gov (United States)

    1982-01-01

    Final report describes solar domestic-hot-water heater installation at LaQuinta Motor Inn, Texas City, Texas which furnished 63% of total hot-water load of new 98-unit inn. Report presents a description of system, drawings and photographs of collectors, operations and maintenance instructions, manufacturers' specifications for pumps, and an engineer's report on performance.

  12. Relationships between models of concurrency

    DEFF Research Database (Denmark)

    Nielsen, Mogens; Sassone, Vladimiro; Winskel, Glynn

    1994-01-01

    Models for concurrency can be classified with respect to the three relevant parameters: behaviour/system, interleaving/noninterleaving, linear/branching time. When modelling a process, a choice concerning such parameters corresponds to choosing the level of abstraction of the resulting semantics....... The classifications are formalized through the medium of category theory....

  13. A Model for Concurrent Objects

    DEFF Research Database (Denmark)

    Sørensen, Morten U.

    1996-01-01

    We present a model for concurrent objects where obejcts interact by taking part in common events that are closely matched to form call-response pairs, resulting in resulting in rendez-vous like communications. Objects are built from primitive objects by parallel composition, encapsulation and hid...

  14. The system of concurrent engineering

    NARCIS (Netherlands)

    Wognum, Nel; Trienekens, Jacques

    2015-01-01

    Concurrent engineering (CE) has been a major theme in the 80s and 90s of the previous century in research and practice. Its main aim is to reduce time-tomarket, improve quality and reduce costs by taking into account downstream requirements and constraints already in the design phase. While

  15. Forests of East Texas, 2014

    Science.gov (United States)

    Thomas J. Brandeis

    2015-01-01

    This resource update provides an overview of forest resources in east Texas derived from an inventory conducted by the U.S. Forest Service, Forest Inventory and Analysis (FIA) Program at the Southern Research Station in cooperation with the Texas A&M Forest Service. These estimates are based on field data collected using the FIA annualized sample design and are...

  16. Latest Guadalupian (Middle Permian) conodonts and foraminifers from West Texas

    Science.gov (United States)

    Lambert, L.L.; Wardlaw, B.R.; Nestell, M.K.; Nestell, G.P.

    2002-01-01

    Clarkina, which characterizes Upper Permian (Lopingian Series) strata, evolved from Jinogondolella altudaensis in the Delaware basin of West Texas as demonstrated by transitional continuity. The West Texas section is significantly more complete in the uppermost Guadalupian interval than that of the probable GSSP reference section in South China, and clarifies the phylogenetic relationships among other conodont taxa as well. Jinogondolella granti clearly evolved into J. artafrons new species, both characterized by Pa elements with a distinctive fused carina. Representatives of Jinogondolella crofti are limited to the uppermost part of the altudaensis zone, and are interpreted as terminal paedomorphs. The associated foraminifer (non-fusulinid) fauna has some species in common with Zechstein faunas, possibly presaging the evaporitic basin that would develop following this latest Guadalupian marine deposition in West Texas.

  17. Texas Affordable Baccalaureate Program: A Collaboration between the Texas Higher Education Coordinating Board, South Texas College, and Texas A&M University-Commerce. CBE Case Study

    Science.gov (United States)

    Klein-Collins, Rebecca; Glancey, Kathleen

    2015-01-01

    This case study is part of a series on newer competency-based degree programs that have been emerging in recent years. In January 2014, the Texas Higher Education Coordinating Board (THECB), South Texas College (STC), and Texas A&M University-Commerce (A&M Commerce) launched the Texas Affordable Baccalaureate Program, the state's first…

  18. Water supply and needs for West Texas

    Science.gov (United States)

    This presentation focused on the water supplies and needs of West Texas, Texas High Plains. Groundwater is the most commonly used water resources on the Texas High Plains, with withdrawals from the Ogallala Aquifer dominating. The saturation thickness of the Ogallala Aquifer in Texas is such that t...

  19. Data refinement for true concurrency

    Directory of Open Access Journals (Sweden)

    Brijesh Dongol

    2013-05-01

    Full Text Available The majority of modern systems exhibit sophisticated concurrent behaviour, where several system components modify and observe the system state with fine-grained atomicity. Many systems (e.g., multi-core processors, real-time controllers also exhibit truly concurrent behaviour, where multiple events can occur simultaneously. This paper presents data refinement defined in terms of an interval-based framework, which includes high-level operators that capture non-deterministic expression evaluation. By modifying the type of an interval, our theory may be specialised to cover data refinement of both discrete and continuous systems. We present an interval-based encoding of forward simulation, then prove that our forward simulation rule is sound with respect to our data refinement definition. A number of rules for decomposing forward simulation proofs over both sequential and parallel composition are developed.

  20. Concurrent Delay in Construction Disputes

    DEFF Research Database (Denmark)

    Cavaleri, Sylvie Cécile

    Delay is one of the issues most frequently encountered in today’s construction industry; it causes significant economic damage to all parties involved. Construction contracts, standard and bespoke, almost invariably consider delay from a perspective of single liability. If the event causing...... solutions to the issue of concurrent delay in a comparative perspective between common and civil law systems, with an emphasis on Danish and English law....

  1. PyCSP - controlled concurrency

    DEFF Research Database (Denmark)

    Vinter, Brian; Friborg, Rune Møllegaard; Bjørndalen, John Markus

    2010-01-01

    Producing readable and correct programs while at the same time taking advantage of multi-core architectures is a challenge. PyCSP is an implementation of Communicating Sequential Processes algebra (CSP) for the Python programming language, that take advantage of CSP's formal and verifiable approach...... to controlling concurrency and the readability of Python source code. We describe PyCSP, demonstrate it through examples and demonstrate how PyCSP compares to Pthreads in a master-worker benchmark....

  2. PyCSP - controlled concurrency

    DEFF Research Database (Denmark)

    Friborg, Rune Møllegaard; Vinter, Brian; Bjørndalen, John Markus

    Producing readable and correct programs while at the same time taking advantage of multi-core architectures is a challenge. PyCSP is an implementation of Communicating Sequential Processes algebra (CSP) for the Python programming language, taking advantage of CSP’s formal and verifiable approach...... to controlling concurrency and the readability of Python source code. We describe PyCSP, demonstrate it through examples and demonstrate how PyCSP compares to Pthreads using a benchmark....

  3. Texas floods of 1940

    Science.gov (United States)

    Breeding, Seth D.

    1948-01-01

    Floods occurred in Texas during, June, July, and November 1940 that exceeded known stages on many small streams and at a few places on the larger streams. Stages at several stream-gaging stations exceeded the maximum known at those places since the collection of daily records began. A storm, haying its axis generally on a north-south line from Cameron to Victoria and extending across the Brazos, Colorado, Lavaca, and Guadalupe River Basins, caused heavy rainfall over a large part of south-central Texas. The maximum recorded rain of 22.7 inches for the 2-day period June 29-30 occurred at Engle. Of this amount, 17.5 inches fell in the 12-hour period between 8 p.m. June 29, and 8 a.m. June 30. Light rains fell at a number of places on June 28, and additional light rains fell at many places within the area from July 1 to 4. During the period June 28 to July 4 more than 20 inches of rain fell over an area of 300 square miles, more than 15 inches over 1,920 square miles, and more than 10 inches over 5,100 square miles. The average annual rainfall for the area experiencing the heaviest rainfall during this storm is about 35 inches. Farming is largely confined to the fertile flood plains in much of the area subjected to the record-breaking floods in June and July. Therefore these floods, coming at the height of the growing season, caused severe losses to crops. Much damage was done also to highways and railways. The city of Hallettsville suffered the greatest damage of any urban area. The Lavaca River at that place reached a stage 8 feet higher than ever known before, drowned several people, destroyed many homes, and submerged almost the entire business district. The maximum discharge there was 93,100 second-feet from a drainage area of 101 square miles. Dry Creek near Smithville produced a maximum discharge of 1,879 second-feet from an area of 1.48 square miles and a runoff of 11.3 inches in a 2-day period from a rainfall of 19.5 inches. The area in the Colorado River

  4. Concurrent chemoradiation for vaginal cancer.

    Directory of Open Access Journals (Sweden)

    David T Miyamoto

    Full Text Available BACKGROUND: It is not known whether the addition of chemotherapy to radiation therapy improves outcomes in primary vaginal cancer. Here, we review clinical outcomes in patients with primary vaginal cancer treated with radiation therapy (RT or concurrent chemoradiation therapy (CRT. METHODS: Seventy-one patients with primary vaginal cancer treated with definitive RT with or without concurrent chemotherapy at a single institution were identified and their records reviewed. A total of 51 patients were treated with RT alone; 20 patients were treated with CRT. Recurrences were analyzed. Overall survival (OS and disease-free survival (DFS rates were estimated using the Kaplan-Meier method. Cox regression analysis was performed. RESULTS: The median age at diagnosis was 61 years (range, 18-92 years and the median follow-up time among survivors was 3.0 years. Kaplan-Meier estimates for OS and DFS differed significantly between the RT and CRT groups (3-yr OS = 56% vs. 79%, log-rank p = 0.037; 3-yr DFS = 43% vs. 73%, log-rank p = 0.011. Twenty-three patients (45% in the RT group had a relapse at any site compared to 3 (15% in the CRT group (p = 0.027. With regard to the sites of first relapse, 10 patients (14% had local only, 4 (6% had local and regional, 9 (13% had regional only, 1 (1% had regional and distant, and 2 (3% had distant only relapse. On univariate analysis, the use of concurrent chemotherapy, FIGO stage, tumor size, and date of diagnosis were significant predictors of DFS. On multivariate analysis, the use of concurrent chemotherapy remained a significant predictor of DFS (hazard ratio 0.31 (95% CI, 0.10-0.97; p = 0.04. CONCLUSIONS: Vaginal cancer results in poor outcomes. Adequate radiation dose is essential to ensure curative management. Concurrent chemotherapy should be considered for vaginal cancer patients.

  5. ACT++: Building a Concurrent C++ with Actors

    OpenAIRE

    Kafura, Dennis G.; Lee, Keung Hae

    1989-01-01

    ACT++ (Actors in C++) is a concurrent object-oriented language being designed for distributed real-time applications. The language is a hybrid of the actor kernel language and the object-oriented language C++. The concurrency abstraction of ACT++ is derived from the actor model as defined by Agha. This paper discusses our experience in building a concurrent extension of C++ with the concurrency abstraction of the actor model. The current design of ACT++ and its implementation are described. S...

  6. Simple concurrent garbage collection almost without synchronization

    NARCIS (Netherlands)

    Hesselink, Wim H.; Lali, M.I.

    We present two simple mark and sweep algorithms, A and B, for concurrent garbage collection by a single collector running concurrently with a number of mutators that concurrently modify shared data. Both algorithms are based on the ideas of Ben-Ari's classical algorithm for on-the-fly garbage

  7. Technical Training seminar: Texas Instruments

    CERN Multimedia

    2006-01-01

    Monday 6 November TECHNICAL TRAINING SEMINAR 14:00 to 17:30 - Training Centre Auditorium (bldg. 593) Texas Instruments Technical Seminar Michael Scholtholt, Field Application Engineer / TEXAS INSTRUMENTS (US, D, CH) POWER - A short approach to Texas Instruments power products Voltage mode vs. current mode control Differentiating DC/DC converters by analyzing control and compensation schemes: line / load regulation, transient response, BOM, board space, ease-of-use Introduction to the SWIFT software FPGA + CPLD power solutions WIRELESS / CHIPCON Decision criteria when choosing a RF platform Introduction to Texas Instruments wireless products: standardized platforms proprietary platforms ( 2.4 GHz / sub 1 GHz) development tools Antenna design: example for 2.4 GHz questions, discussion Industrial partners: Robert Medioni, François Caloz / Spoerle Electronic, CH-1440 Montagny (VD), Switzerland Phone: +41 24 447 0137, email: RMedioni@spoerle.com, http://www.spoerle.com Language: English. Free s...

  8. Water Finance Forum-Texas

    Science.gov (United States)

    Regional Finance Forum: Financing Resilient and Sustainable Water Infrastructure, held in Addison, Texas, September 10-11, 2015.Co-sponsored by EPA's Water Infrastructure and Resiliency Finance Center and the Environmental Finance Center Network.

  9. 2001 Harris County, Texas Lidar

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set was received by the NOAA Coastal Services Center from the Texas Natural Resources Information System. The data was collected in October of 2001 by...

  10. Concurrent ultrasonic weld evaluation system

    Science.gov (United States)

    Hood, Donald W.; Johnson, John A.; Smartt, Herschel B.

    1987-01-01

    A system for concurrent, non-destructive evaluation of partially completed welds for use in conjunction with an automated welder. The system utilizes real time, automated ultrasonic inspection of a welding operation as the welds are being made by providing a transducer which follows a short distance behind the welding head. Reflected ultrasonic signals are analyzed utilizing computer based digital pattern recognition techniques to discriminate between good and flawed welds on a pass by pass basis. The system also distinguishes between types of weld flaws.

  11. Teaching Concurrency: Theory in Practice

    DEFF Research Database (Denmark)

    Aceto, Luca; Ingolfsdottir, Anna; Larsen, Kim Guldstrand

    2009-01-01

    Teaching courses that rely on sound mathematical principles is nowadays a challenging task at many universities. On the one hand there is an increased demand for educating students in these areas, on the other hand there are more and more students being accepted with less adequate skills...... in mathematics. We report here on our experiences in teaching concurrency theory over the last twenty years or so to students ranging from mathsphobic bachelor students to sophisticated doctoral students. The contents of the courses, the material on which they are based and the pedagogical philosophy underlying...

  12. How does concurrent sourcing affect performance?

    DEFF Research Database (Denmark)

    Mols, Niels Peter

    2010-01-01

    Abstract Purpose – “Concurrent sourcing” is a term used by Parmigiani to describe the phenomenon where a firm simultaneously buys and makes the same good or service. The purpose of this paper is to develop propositions that suggest how concurrent sourcing affects performance. Design/methodology/a......Abstract Purpose – “Concurrent sourcing” is a term used by Parmigiani to describe the phenomenon where a firm simultaneously buys and makes the same good or service. The purpose of this paper is to develop propositions that suggest how concurrent sourcing affects performance. Design....../methodology/approach – Based on transaction cost, agency, neoclassical economic, knowledge-based, and resource-based theory, it is proposed to show how concurrent sourcing affects performance. Findings – The paper argues that concurrent sourcing improves performance when firms face a combination of volume uncertainty...... how concurrent sourcing affects performance of the market and the hierarchy....

  13. Concurrency at work with Go

    CERN Multimedia

    CERN. Geneva

    2017-01-01

    High Energy and Nuclear Physics (HENP) libraries are now required to be increasingly multi-thread-safe, if not multi-thread-friendly and multi-threaded. This is usually done using the new constructs and library components offered by the C++11 and C++14 standards. These components are however quite low-level (threads, mutexes, locks, ...) and hard to use and compose, or easy to misuse. However, Go -- a somewhat new language -- provides a set of better building blocks for tackling concurrency: goroutines and channels. This language is now used by the cloud industry at large; docker/moby, rkt, Kubernetes, OpenShift, etc... are obvious flagships for Go. It is also used in other interesting places like SpaceX's telemetry monitoring system and in the New York Times', YouTube's or Disney's content delivery infrastructures. In this talk, we will describe the building blocks of Go and see how they are combined to easily create concurrent programs that grow with grace, are fast to compile and deploy, but also easy to...

  14. Suspended sediment yield in Texas watersheds

    Science.gov (United States)

    Coonrod, Julia Ellen Allred

    The Texas Water Development Board collected suspended sediment samples across the state of Texas for approximately 60 years. Until this research, no comprehensive analysis of the data had been conducted. This study compiles the suspended sediment data along with corresponding streamflow and rainfall. GIS programs are developed which characterize watersheds corresponding to the sediment gauging stations. The watersheds are characterized according to topography, climate, soils, and land use. All of the data is combined to form several SAS data sets which can subsequently be analyzed using regression. Annual data for all of the stations across the state are classified temporally and spatially to determine trends in the sediment yield. In general, the suspended sediment load increases with increasing runoff but no correlation exists with rainfall. However, the annual average rainfall can be used to classify the watersheds according to climate, which improves the correlation between sediment load and runoff. The watersheds with no dams have higher sediment loads than watersheds with dams. Dams in the drier parts of Texas reduce the sediment load more than dams in the wetter part of the state. Sediment rating curves are developed separately for each basin in Texas. All but one of the curves fall into a band which varies by about two orders of magnitude. The study analyzes daily time series data for the Lavaca River near Edna station. USGS data are used to improve the sediment rating curve by the addition of physically related variables and interaction terms. The model can explain an additional 41% of the variability in sediment concentration compared to a simple bivariate regression of sediment load and flow. The TWDB daily data for the Lavaca River near Edna station are used to quantify temporal trends. There is a high correlation between sediment load and flowrate for the Lavaca River. The correlation can be improved by considering a flow-squared term and by

  15. Chagas disease risk in Texas.

    Science.gov (United States)

    Sarkar, Sahotra; Strutz, Stavana E; Frank, David M; Rivaldi, Chissa-Louise; Sissel, Blake; Sánchez-Cordero, Victor

    2010-10-05

    Chagas disease, caused by Trypanosoma cruzi, remains a serious public health concern in many areas of Latin America, including México. It is also endemic in Texas with an autochthonous canine cycle, abundant vectors (Triatoma species) in many counties, and established domestic and peridomestic cycles which make competent reservoirs available throughout the state. Yet, Chagas disease is not reportable in Texas, blood donor screening is not mandatory, and the serological profiles of human and canine populations remain unknown. The purpose of this analysis was to provide a formal risk assessment, including risk maps, which recommends the removal of these lacunae. The spatial relative risk of the establishment of autochthonous Chagas disease cycles in Texas was assessed using a five-stage analysis. 1. Ecological risk for Chagas disease was established at a fine spatial resolution using a maximum entropy algorithm that takes as input occurrence points of vectors and environmental layers. The analysis was restricted to triatomine vector species for which new data were generated through field collection and through collation of post-1960 museum records in both México and the United States with sufficiently low georeferenced error to be admissible given the spatial resolution of the analysis (1 arc-minute). The new data extended the distribution of vector species to 10 new Texas counties. The models predicted that Triatoma gerstaeckeri has a large region of contiguous suitable habitat in the southern United States and México, T. lecticularia has a diffuse suitable habitat distribution along both coasts of the same region, and T. sanguisuga has a disjoint suitable habitat distribution along the coasts of the United States. The ecological risk is highest in south Texas. 2. Incidence-based relative risk was computed at the county level using the Bayesian Besag-York-Mollié model and post-1960 T. cruzi incidence data. This risk is concentrated in south Texas. 3. The

  16. Chagas disease risk in Texas.

    Directory of Open Access Journals (Sweden)

    Sahotra Sarkar

    Full Text Available BACKGROUND: Chagas disease, caused by Trypanosoma cruzi, remains a serious public health concern in many areas of Latin America, including México. It is also endemic in Texas with an autochthonous canine cycle, abundant vectors (Triatoma species in many counties, and established domestic and peridomestic cycles which make competent reservoirs available throughout the state. Yet, Chagas disease is not reportable in Texas, blood donor screening is not mandatory, and the serological profiles of human and canine populations remain unknown. The purpose of this analysis was to provide a formal risk assessment, including risk maps, which recommends the removal of these lacunae. METHODS AND FINDINGS: The spatial relative risk of the establishment of autochthonous Chagas disease cycles in Texas was assessed using a five-stage analysis. 1. Ecological risk for Chagas disease was established at a fine spatial resolution using a maximum entropy algorithm that takes as input occurrence points of vectors and environmental layers. The analysis was restricted to triatomine vector species for which new data were generated through field collection and through collation of post-1960 museum records in both México and the United States with sufficiently low georeferenced error to be admissible given the spatial resolution of the analysis (1 arc-minute. The new data extended the distribution of vector species to 10 new Texas counties. The models predicted that Triatoma gerstaeckeri has a large region of contiguous suitable habitat in the southern United States and México, T. lecticularia has a diffuse suitable habitat distribution along both coasts of the same region, and T. sanguisuga has a disjoint suitable habitat distribution along the coasts of the United States. The ecological risk is highest in south Texas. 2. Incidence-based relative risk was computed at the county level using the Bayesian Besag-York-Mollié model and post-1960 T. cruzi incidence data. This

  17. Lazy Evaluation for Concurrent OLTP and Bulk Transactions

    NARCIS (Netherlands)

    Wevers, L.; Huisman, Marieke; van Keulen, Maurice

    2016-01-01

    Existing concurrency control systems cannot execute transactions with overlapping updates concurrently. This is especially problematic for bulk updates, which usually overlap with all concurrent transactions. To solve this, we have developed a concurrency control mechanism based on lazy evaluation,

  18. Initial Results from the New Stress Map of Texas Project

    Science.gov (United States)

    Lund Snee, J. E.; Zoback, M. D.

    2015-12-01

    Modern techniques for characterizing tectonic stress orientation and relative magnitude have been successfully used for more than 35 years. Nevertheless, large areas of North America lack high spatial resolution maps of stress orientation, magnitude, and faulting regime. In Texas, for example, geothermal resources. This year, we launched the Texas Stress Map project to characterize tectonic stress patterns at higher spatial resolution across Texas and nearby areas. Following a successful effort just completed in Oklahoma, we will evaluate borehole breakouts, drilling-induced tensile fractures, shear wave anisotropy, and earthquake data. The principal data source will be FMI (fullbore formation microimager), UBI (ultrasonic borehole imager), cross-dipole sonic, density, and caliper logs provided by private industry. Earthquake moment tensor solutions from the U.S. Geological Survey, Saint Louis University and other sources will also be used. Our initial focus is on the Permian Basin and Barnett Shale petroleum plays due to the availability of data, but we will expand our analysis across the state as the project progresses. In addition, we hope to eventually apply the higher spatial resolution data coverage to understanding tectonic and geodynamic characteristics of the southwestern United States and northeastern Mexico. Here we present early results from our work to constrain stress orientations and faulting regime in and near Texas, and we also provide a roadmap for the ongoing research.

  19. Molecular adaptations to concurrent training.

    Science.gov (United States)

    de Souza, E O; Tricoli, V; Roschel, H; Brum, P C; Bacurau, A V N; Ferreira, J C B; Aoki, M S; Neves-Jr, M; Aihara, A Y; da Rocha Correa Fernandes, A; Ugrinowitsch, C

    2013-03-01

    This study investigated the chronic effects of concurrent training (CT) on morphological and molecular adaptations. 37 men (age=23.7±5.5 year) were divided into 4 groups: interval (IT), strength (ST) and concurrent (CT) training and a control group (C) and underwent 8 weeks of training. Maximum strength (1RM) and muscle cross-sectional area (CSA) were evaluated before and after training. Muscle samples were obtained before the training program and 48 h after the last training session. VO2max improved in 5±0.95% and 15±1.3% (pre- to post-test) in groups CT and IT, respectively, when compared to C. Time to exhaustion (TE) improved from pre- to post-test when compared to C (CT=6.1±0.58%; IT=8.3±0.88%; ST=3.2±0.66%). 1RM increased from pre-to post-test only in ST and CT groups (ST=18.5±3.16%; CT=17.6±3.01%). Similarly, ST and CT groups increased quadriceps CSA from pre-to post-test (6.2±1.4%; 7.8±1.66%). The p70S6K1 total protein content increased after CT. The ST group showed increased Akt phosphorylation at Ser473 (45.0±3.3%) whereas AMPK phosphorylation at Thr172 increased only in IT group, (100±17.6%). In summary, our data suggest that despite the differences in molecular adaptations between training regimens, CT did not blunt muscle strength and hypertrophy increments when compared with ST. © Georg Thieme Verlag KG Stuttgart · New York.

  20. DNA contents in Texas bluegrass (Poa arachnifera) selected in Texas and Oklahoma determined by flow cytometry

    Science.gov (United States)

    Texas bluegrass (Poa arachnifera Torr.) is a dioecious, perennial, cool-season grass native to southern Kansas, Oklahoma, western Arkansas and most of Texas. Its major use has been for forage on rangelands in Texas and Oklahoma. More recently, interspecific hybrids between Texas bluegrass and Kentuc...

  1. Nutritional strategies to support concurrent training.

    Science.gov (United States)

    Perez-Schindler, Joaquin; Hamilton, D Lee; Moore, Daniel R; Baar, Keith; Philp, Andrew

    2015-01-01

    Concurrent training (the combination of endurance exercise to resistance training) is a common practice for athletes looking to maximise strength and endurance. Over 20 years ago, it was first observed that performing endurance exercise after resistance exercise could have detrimental effects on strength gains. At the cellular level, specific protein candidates have been suggested to mediate this training interference; however, at present, the physiological reason(s) behind the concurrent training effect remain largely unknown. Even less is known regarding the optimal nutritional strategies to support concurrent training and whether unique nutritional approaches are needed to support endurance and resistance exercise during concurrent training approaches. In this review, we will discuss the importance of protein supplementation for both endurance and resistance training adaptation and highlight additional nutritional strategies that may support concurrent training. Finally, we will attempt to synergise current understanding of the interaction between physiological responses and nutritional approaches into practical recommendations for concurrent training.

  2. Regional Haze Plan for Texas and Oklahoma

    Science.gov (United States)

    EPA partially approved and partially disapproved the Texas regional haze plan. EPA also finalized a plan to limit sulfur dioxide emissions from eight Texas coal-fired electricity generating facilities

  3. Design and Implementation of Concurrent C0

    Directory of Open Access Journals (Sweden)

    Max Willsey

    2017-01-01

    Full Text Available We describe Concurrent C0, a type-safe C-like language with contracts and session-typed communication over channels. Concurrent C0 supports an operation called forwarding which allows channels to be combined in a well-defined way. The language's type system enables elegant expression of session types and message-passing concurrent programs. We provide a Go-based implementation with language based optimizations that outperforms traditional message passing techniques.

  4. Steps in Modular Specifications for Concurrent Modules

    DEFF Research Database (Denmark)

    Da Rocha Pinto, Pedro; Dinsdale-Young, Thomas; Gardner, Philippa

    2015-01-01

    The specification of a concurrent program module is a difficult problem. The specifications must be strong enough to enable reasoning about the intended clients without reference to the underlying module implementation. We survey a range of verification techniques for specifying concurrent modules......, in particular highlighting four key concepts: auxiliary state, interference abstraction, resource ownership and atomicity. We show how these concepts combine to provide powerful approaches to specifying concurrent modules....

  5. Rain VM: Portable Concurrency through Managing Code

    OpenAIRE

    Brown, Neil C.C.

    2006-01-01

    A long-running recent trend in computer programming is the growth in popularity of virtual machines. However, few have included good support for concurrency - a natural mechanism in the Rain programming language. This paper details the design and implementation of a secure virtual machine with support for concurrency, which enables portability of concurrent programs. Possible implementation ideas of many-to-many threading models for the virtual machine kernel are discussed, and initial benchm...

  6. Possible values: exploring a concept for concurrency

    OpenAIRE

    Jones, Cliff B.; Hayes, Ian J.

    2016-01-01

    An important issue in concurrency is interference. This issue manifests itself in both shared-variable and communication-based concurrency --- this paper focusses on the former case where interference is caused by the environment of a process changing the values of shared variables. Rely/guarantee approaches have been shown to be useful in specifying and reasoning compositionally about concurrent programs. This paper explores the use of a "possible values" notation for reasoning about variabl...

  7. Flow Java : declarative concurrency for Java

    OpenAIRE

    Drejhammar, Frej

    2004-01-01

    This thesis presents the design, implementation, and evaluation of Flow Java, a programming language for the implementation of concurrent programs. Flow Java adds powerful programming abstractions for automatic synchronization of concurrent programs to Java. The abstractions added are single assignment variables (logic variables) and futures (read-only views of logic variables). The added abstractions conservatively extend Java with respect to types, parameter passing, and concurrency. Future...

  8. Characterization of plant-growth-promoting effects and concurrent promotion of heavy metal accumulation in the tissues of the plants grown in the polluted soil by Burkholderia strain LD-11.

    Science.gov (United States)

    Huang, Gui-Hai; Tian, Hui-Hui; Liu, Hai-Ying; Fan, Xian-Wei; Liang, Yu; Li, You-Zhi

    2013-01-01

    Plant-growth-promoting (PGP) bacteria especially with the resistance to multiple heavy metals are helpful to phytoremediation. Further development of PGP bacteria is very necessary because of the extreme diversity of plants, soils, and heavy metal pollution. A Burkholderia sp. strain, numbered LD-11, was isolated, which showed resistances to multiple heavy metals and antibiotics. It can produce indole-3-acetic acid, 1-aminocyclopropane-1-carboxylic acid deaminase and siderophores. Inoculation with the LD-11 improved germination of seeds of the investigated vegetable plants in the presence of Cu, promoted elongation of roots and hypocotyledonary axes, enhanced the dry weights of the plants grown in the soils polluted with Cu and/or Pb, and increased activity of the soil urease and the rhizobacteria diversity. Inoculation with the LD-11 significantly enhanced Cu and/or Pb accumulation especially in the roots of the plants grown in the polluted soils. Notably, LD-11 could produce siderophores in the presence of Cu. Conclusively, the PGP effects and concurrent heavy metal accumulation in the plant tissues results from combined effects of the above-mentioned multiple factors. Cu is an important element that represses production of the siderophore by the bacteria. Phytoremediation by synergistic use of the investigated plants and the bacterial strain LD-11 is a phytoextraction process.

  9. Automated Concurrent Blackboard System Generation in C++

    Science.gov (United States)

    Kaplan, J. A.; McManus, J. W.; Bynum, W. L.

    1999-01-01

    In his 1992 Ph.D. thesis, "Design and Analysis Techniques for Concurrent Blackboard Systems", John McManus defined several performance metrics for concurrent blackboard systems and developed a suite of tools for creating and analyzing such systems. These tools allow a user to analyze a concurrent blackboard system design and predict the performance of the system before any code is written. The design can be modified until simulated performance is satisfactory. Then, the code generator can be invoked to generate automatically all of the code required for the concurrent blackboard system except for the code implementing the functionality of each knowledge source. We have completed the port of the source code generator and a simulator for a concurrent blackboard system. The source code generator generates the necessary C++ source code to implement the concurrent blackboard system using Parallel Virtual Machine (PVM) running on a heterogeneous network of UNIX(trademark) workstations. The concurrent blackboard simulator uses the blackboard specification file to predict the performance of the concurrent blackboard design. The only part of the source code for the concurrent blackboard system that the user must supply is the code implementing the functionality of the knowledge sources.

  10. Concurrent rendezvous control of underactuated spacecraft

    Science.gov (United States)

    Muralidharan, Vijay; Reza Emami, M.

    2017-09-01

    The concurrent control of spacecraft equipped with one-axis unilateral thruster and three-axis attitude actuator is considered in this paper. The proposed control law utilizes attitude control channels along with the single thrust force concurrently, for three-dimensional trajectory tracking and rendezvous with a target object. The concurrent controller also achieves orbital transfer to low Earth orbits with long range separation. To demonstrate the orbit transfer capabilities of the concurrent controller, a smooth elliptical orbit transfer trajectory for co-planar circular orbits is designed. The velocity change and energy consumption of the designed orbit transfer trajectory is observed to be equivalent to that of Hohmann transfer.

  11. Texas Real Estate Curriculum Workshop Summary Report.

    Science.gov (United States)

    Lyon, Robert

    The Texas Real Estate Research Center-Texas Education Agency (TRERC-TEA) curriculum workshop was attended by over 40 participants representing 26 Texas community colleges. These participants divided into eight small groups by real estate specialty area and developed curriculum outlines and learning objectives for the following real estate courses:…

  12. 25 CFR 168.17 - Concurrence procedures.

    Science.gov (United States)

    2010-04-01

    ... PARTITIONED LANDS AREA § 168.17 Concurrence procedures. (a) Definitions. As used in this section, terms shall... permits are issued to persons residing on Hopi partitioned lands, which limit the grazing on range lands... a formal hearing to be held not sooner than 15 days from the date of the non-concurrence declaration...

  13. Petri nets and other models of concurrency

    DEFF Research Database (Denmark)

    Nielsen, Mogens; Sassone, Vladimiro

    1998-01-01

    This paper retraces, collects, and summarises contributions of the authors - in collaboration with others - on the theme of Petri nets and their categorical relationships to other models of concurrency.......This paper retraces, collects, and summarises contributions of the authors - in collaboration with others - on the theme of Petri nets and their categorical relationships to other models of concurrency....

  14. New concurrent iterative methods with monotonic convergence

    Energy Technology Data Exchange (ETDEWEB)

    Yao, Qingchuan [Michigan State Univ., East Lansing, MI (United States)

    1996-12-31

    This paper proposes the new concurrent iterative methods without using any derivatives for finding all zeros of polynomials simultaneously. The new methods are of monotonic convergence for both simple and multiple real-zeros of polynomials and are quadratically convergent. The corresponding accelerated concurrent iterative methods are obtained too. The new methods are good candidates for the application in solving symmetric eigenproblems.

  15. 37 CFR 2.42 - Concurrent use.

    Science.gov (United States)

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Concurrent use. 2.42 Section 2.42 Patents, Trademarks, and Copyrights UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE RULES OF PRACTICE IN TRADEMARK CASES The Written Application § 2.42 Concurrent use. An application...

  16. A Temporal Concurrent Constraint Programming Calculus

    DEFF Research Database (Denmark)

    Palamidessi, Catuscia; Valencia Posso, Frank Darwin

    2001-01-01

    The tcc model is a formalism for reactive concurrent constraint programming. In this paper we propose a model of temporal concurrent constraint programming which adds to tcc the capability of modeling asynchronous and non-deterministic timed behavior. We call this tcc extension the ntcc calculus...

  17. Multiparty Compatibility for Concurrent Objects

    Directory of Open Access Journals (Sweden)

    Roly Perera

    2016-06-01

    Full Text Available Objects and actors are communicating state machines, offering and consuming different services at different points in their lifecycle. Two complementary challenges arise when programming such systems. When objects interact, their state machines must be "compatible", so that services are requested only when they are available. Dually, when objects refine other objects, their state machines must be "compliant", so that services are honoured whenever they are promised. In this paper we show how the idea of multiparty compatibility from the session types literature can be applied to both of these problems. We present an untyped language in which concurrent objects are checked automatically for compatibility and compliance. For simple objects, checking can be exhaustive and has the feel of a type system. More complex objects can be partially validated via test cases, leading to a methodology closer to continuous testing. Our proof-of-concept implementation is limited in some important respects, but demonstrates the potential value of the approach and the relationship to existing software development practices.

  18. The Concurrent Programming of Saccades.

    Science.gov (United States)

    McSorley, Eugene; McCloy, Rachel; Williams, Louis

    2016-01-01

    Sequences of saccades have been shown to be prepared concurrently however it remains unclear exactly what aspects of those saccades are programmed in parallel. To examine this participants were asked to make one or two target-driven saccades: a reflexive saccade; a voluntary saccade; a reflexive then a voluntary saccade; or vice versa. During the first response the position of a second target was manipulated. The new location of the second saccade target was found to impact on second saccade latencies and second saccade accuracy showing that some aspects of the second saccade program are prepared in parallel with the first. However, differences were found in the specific pattern of effects for each sequence type. These differences fit well within a general framework for saccade control in which a common priority map for saccade control is computed and the influence of saccade programs on one another depends not so much on the types of saccade being produced but rather on the rate at which their programs develop.

  19. THE RELIGIOUS ECONOMY OF TEXAS: AN HISTORICAL PERSPECTWE

    Directory of Open Access Journals (Sweden)

    Stephen E. Lile

    2000-01-01

    Full Text Available This paper examines the changing market shares of major Texas religious groups during this century. Market shares are computed by dividing membership by Texas population. Results show that certain religious groups (firms have performed much better in terms of market share than others. The better performers are the more conservative Protestant denominations along with the Roman Catholic Church. Groups losing market share tendto be the more liberal Protestant denominations. This finding would appear to be consistent with Niebuhr’s church-sect theory which, among other things, predicts that religious groups (sects characterized by a high degree of tension with society grow whereas groups (churches characterized by alow degree of tension with society tend to decline.

  20. Residential Energy Efficiency Potential: Texas

    Energy Technology Data Exchange (ETDEWEB)

    Wilson, Eric J [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2017-11-02

    Energy used by Texas single-family homes that can be saved through cost-effective improvements. Prepared by Eric Wilson and Noel Merket, NREL, and Erin Boyd, U.S. Department of Energy Office of Energy Policy and Systems Analysis.

  1. South Texas Maquiladora Suppliers Project.

    Science.gov (United States)

    Patrick, J. Michael

    This project was undertaken to assist South Texas industries in improving export to nearby Mexican maquiladoras (factories). The maquiladora program is based on co-production by two plants under a single management, one on each side of the border. Activities addressed four objectives: (1) to determine the dollar value, quantity, and source of the…

  2. Characterization of Pollution Transport into Texas Using OMI and TES Satellite and In Situ data, and HYSPLIT Back Trajectory Analyses: implications for TCEQ State Implementation Plans and High School/Undergraduate STEM Education

    Science.gov (United States)

    Boxe, C.; Bella, D.; Khaimova, J.; Culpepper, J.; Ahmed, N.; Belkalai, A.; Ealy, J.; Arroyo, I.; Lahoumh, M.; Jenkins, O.; Emmanuel, S.; Andrews, J.; Fu, D.; Wu, L.; Choi, Y.; Morris, G.; Osterman, G. B.; Johnson, L. P.; Austin, S. A.

    2014-12-01

    Using an online trajectory analysis tool NASA, ArcGIS, Satellite and EPA in situ data, we assess whether high pollution events in Texas are primarily sourced locally or remotely. We focus satellite data that exemplify high O3 and NO2 over Texas's lower troposphere. Four day back trajectory analyses of all dates show that upper-, mid-, and lower-tropospheric air over Texas, containing high O3, is transported from the Gulf of Mexico, Southeast USA, Midwest USA, Northeast USA, the Atlantic Ocean, Pacific Ocean, Mexico, etc. Only day showed air at 1 km is sourced within Texas. Satellite data show O3 enhancements in the boundary layer and O3 and NO2 enhancements via tropospheric column profiles. These enhancements complement four-day trajectory analysis. This study provides a viable basis for more quantifiable and accurate information for developing effective air quality State Implementation Plans. STEM Impact: (i) D. Bella was an NSF-LSAMP undergraduate research mentee with me at Medgar Evers College-CUNY; she received a B.S. in Environmental Science (and a Chemistry Minor) and is now a Ph.D. graduate student at University at Albany's School of Public Health. (ii) J. Khaimova is an undergraduate Geology and Planetary Science B.S. major at Brooklyn College-CUNY. I have supported Jessica's summer internship in summer 2013 as a CUNY Summer Research Fellow, where she is currently an NSF-REU research mentee at Pennsylvania State University's Meteorology Department. (iii) J. Culpepper received his B.S. in Environmental Science from MEC-CUNY and will be a Ph.D. student, Fall 2014 at University of Iowa's Civil and Environmental Engineering Department. (iv) S. Gentle was a high school researcher with me within ACS's Project SEED Program for high school students. S. Gentle will start her undergraduate career Fall 2014 at Pennsylvania State University and seeks to attain a B.S. in Chemistry. (v). All parties, including high school and undergraduate researchers seek to attend

  3. Leptin, cortisol and distinct concurrent training sequences.

    Science.gov (United States)

    Rosa, G; Dantas, E; Biehl, C; de Castro e Silva, H; Montano, M A E; de Mello, D B

    2012-03-01

    In order to investigate the effects of distinct concurrent training sequences on serum leptin and cortisol levels, 10 subjects (27.1±4.8 years, body mass index 25.38±0.09) were submitted to a control session, concurrent training 1 and concurrent training 2. Samples of leptin and cortisol were collected. Concurrent training 1 consisted of indoor cycling followed by strength training and concurrent training 2 of strength training followed by indoor cycling. No exercises were performed at the control session. Blood was collected once again to verify the same variables. Shapiro-Wilk, 2-way ANOVA and Tukey post-hoc tests were used. There was a reduction in leptin levels after concurrent training 1 (Δ%= - 16.04; p=0.05) and concurrent training 2 (Δ%= - 8.54; p=0.02). Cortisol decreased after concurrent training 1 (Δ%= - 26.32; p=0.02) and concurrent training 2 (Δ%= - 33.57; p=0.05). There was a high and significant correlation between blood variables only in CS (lep PRE X cort PRE and cort POST: r= - 0.80 and r= - 0.81; lep POST X cort PRE and cort POST: r= - 0.62 and r= - 0.62). Concurrent training promoted a reduction in leptin and cortisol levels irrespective of sequence. © Georg Thieme Verlag KG Stuttgart · New York.

  4. Environmental assessment: Deaf Smith County site, Texas

    Energy Technology Data Exchange (ETDEWEB)

    1986-05-01

    In February 1983, the US Department of Energy (DOE) identified a location in Deaf Smith County, Texas, as one of nine potentially acceptable sites for a mined geologic repository for spent nuclear fuel and high-level radioactive waste. To determine their suitability, the Deaf Smith County site and the eight other potentially sites have been evaluated in accordance with the DOE's General Guidelines for the Recommendation of Sites for the Nuclear Waste Repositories. The Deaf Smith County site is in the Permian Basin, which is one of five distinct geohydrologic settings considered for the first repository. On the basis of the evaluations reported in this EA, the DOE has found that the Deaf Smith County site is not disqualified under the guidelines. On the basis of these findings, the DOE is nominating the Deaf Smith County site as one of the five sites suitable for characterization. 591 refs., 147 figs., 173 tabs.

  5. Red Tide off Texas Coast

    Science.gov (United States)

    2002-01-01

    Red tides (algae) bloomed late this summer along a 300-mile stretch of Texas' Gulf Coast, killing millions of fish and shellfish as well as making some people sick. State officials are calling this the worst red tide bloom in 14 years. The algae produces a poison that paralyzes fish and prevents them from breathing. There is concern that the deadly algae could impact or even wipe out this year's oyster harvest in Texas, which usually peaks during the Thanksgiving and Christmas holidays. The red tides were first observed off the Texas coast in mid-August and have been growing steadily in size ever since. Red tides tend to bloom and subside rapidly, depending upon changes in wind speed and direction, water temperature, salinity, and rainfall patterns (as the algae doesn't do as well in fresher water). This true-color image of the Texas Gulf Coast was acquired on September 29, 2000, by the Moderate-resolution Imaging Spectroradiometer (MODIS) flying aboard NASA's Terra spacecraft. The red tide can be seen as the dark reddish discoloration in the ocean running southwest to northeast along the coast. In this scene, the bloom appears to be concentrated north and east of Corpus Christi, just off Matagorda Island. The image was made at 500-meter resolution using a combination of MODIS' visible bands 1 (red), 4 (green), and 3 (blue). The city of Houston can be seen clearly as the large, greyish cluster of pixels to the north and west of Galveston Bay, which is about mid-way up the coastline in this image. Also visible in this image are plumes of smoke, perhaps wildfires, both to the north and northeast of Houston. For more information about red tides, refer to the Texas Red Tide Web site. Image courtesy Andrey Savtchenko, MODIS Data Support Team, and the MODIS Ocean Team, NASA's Goddard Space Flight Center

  6. Concurrent Constraint Machine Improvisation: Models and Implementation

    OpenAIRE

    Toro, Mauricio

    2015-01-01

    Machine improvisation creates music either by explicit coding of rules or by applying machine learning methods. We deal with the latter case. An improvisation system capable of real-time must execute two process concurrently: one to apply machine learning methods to musical sequences in order to capture prominent musical features, and one to produce musical sequences stylistically consistent with the learned material. As an example, the Concurrent Constraint Factor Oracle Model for Music Impr...

  7. Oceanographic measurements from the Texas Automated Buoy System (TABS)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Texas Automated Buoy System contains daily oceanographic measurements from seven buoys off the Texas coast from Brownsville to Sabine. The Texas General Land...

  8. Modeling Hybrid Systems in the Concurrent Constraint Paradigm

    Directory of Open Access Journals (Sweden)

    Damián Adalid

    2015-01-01

    Full Text Available Hybrid systems, which combine discrete and continuous dynamics, require quality modeling languages to be either described or analyzed. The Concurrent Constraint paradigm (ccp is an expressive declarative paradigm, characterized by the use of a common constraint store to communicate and synchronize concurrent agents. In this paradigm, the information is stated in the form of constraints, in contrast to the variable/value style typical of imperative languages. Several extensions of ccp have been proposed in order to model reactive systems. One of these extensions is the Timed Concurrent Constraint Language (tccp that adds to ccp a notion of discrete time and new features to model time-out and preemption actions. The goal of this paper is to explore the expressive power of tccp to describe hybrid systems. We introduce the language Hy-tccp as a conservative extension of tccp, by adding a notion of continuous time and new constructs to describe the continuous dynamics of hybrid systems. In this paper, we present the syntax and the operational semantics of Hy-tccp together with some examples that show the expressive power of our new language.

  9. Angiostrongylus cantonensis Meningitis and Myelitis, Texas, USA.

    Science.gov (United States)

    Al Hammoud, Roukaya; Nayes, Stacy L; Murphy, James R; Heresi, Gloria P; Butler, Ian J; Pérez, Norma

    2017-06-01

    Infection with Angiostrongylus cantonensis roundworms is endemic in Southeast Asia and the Pacific Basin. A. cantonensis meningitis and myelitis occurred in summer 2013 in a child with no history of travel outside of Texas, USA. Angiostrongyliasis is an emerging neurotropic helminthic disease in Texas and warrants increased awareness among healthcare providers.

  10. Models for concurrency: towards a classification

    DEFF Research Database (Denmark)

    Sassone, Vladimiro; Nielsen, Mogens; Winskel, Glynn

    1996-01-01

    Models for concurrency can be classified with respect to three relevant parameters: behaviour/ system, interleaving/noninterleaving, linear/branching time. When modelling a process, a choice concerning such parameters corresponds to choosing the level of abstraction of the resulting semantics....... In this paper, we move a step towards a classification of models for concurrency based on the parameters above. Formally, we choose a representative of any of the eight classes of models obtained by varying the three parameters, and we study the formal relationships between them using the language of category...

  11. Using molecular biology to maximize concurrent training.

    Science.gov (United States)

    Baar, Keith

    2014-11-01

    Very few sports use only endurance or strength. Outside of running long distances on a flat surface and power-lifting, practically all sports require some combination of endurance and strength. Endurance and strength can be developed simultaneously to some degree. However, the development of a high level of endurance seems to prohibit the development or maintenance of muscle mass and strength. This interaction between endurance and strength is called the concurrent training effect. This review specifically defines the concurrent training effect, discusses the potential molecular mechanisms underlying this effect, and proposes strategies to maximize strength and endurance in the high-level athlete.

  12. Concurrent sourcing and external supplier opportunism

    DEFF Research Database (Denmark)

    Mols, Niels Peter

    costs of opportunism are determined as a product of four factors. The four factors are: likelihood of discovering supplier opportunism, buyer’s internalized quantity as reaction to supplier opportunism, asset specificity of external supplier’s investments, and multiplicator effects. Each......When a firm simultaneously makes and buys the same components then the firm uses concurrent sourcing. This paper presents an agency model for explaining how and when concurrent sourcing reduces the likelihood of external supplier opportunism. In the proposed model, the external supplier’s expected...... of these factors are explained and discussed in the paper. The paper ends by offering a number of theoretical and managerial implications....

  13. Notes on Timed Concurrent Constraint Programming

    DEFF Research Database (Denmark)

    Nielsen, Mogens; Valencia, Frank D.

    2004-01-01

    and program reactive systems. This note provides a comprehensive introduction to the background for and central notions from the theory of tccp. Furthermore, it surveys recent results on a particular tccp calculus, ntcc, and it provides a classification of the expressive power of various tccp languages.......A constraint is a piece of (partial) information on the values of the variables of a system. Concurrent constraint programming (ccp) is a model of concurrency in which agents (also called processes) interact by telling and asking information (constraints) to and from a shared store (a constraint...

  14. Increasing frequency and spatial extent of concurrent meteorological droughts and heatwaves in India.

    Science.gov (United States)

    Sharma, Shailza; Mujumdar, Pradeep

    2017-11-14

    The impacts of concurrent droughts and heatwaves could be more serious compared to their individual occurrence. Meteorological drought condition is generally characterized by low rainfall, but impact of such an event is amplified with simultaneous occurrence of heatwaves. Positive feedback between these two extremes can worsen the rainfall deficit situation to serious soil moisture depletion due to enhanced evapotranspiration. In this study, the concurrence of meteorological droughts and heatwaves is investigated in India using Indian Meteorological Department (IMD) high resolution gridded data over a period of 60 years. Significant changes are observed in concurrent meteorological droughts and heatwaves defined at different percentile based thresholds and durations during the period 1981-2010 relative to the base period 1951-1980. There is substantial increase in the frequency of concurrent meteorological droughts and heatwaves across whole India. Statistically significant trends in the spatial extent of droughts are observed in Central Northeast India and West Central India; however, the spatial extent affected by concurrent droughts and heatwaves is increasing across whole India. Significant shifts are identified in the distribution of spatial extent of concurrent drought and heatwaves in India compared to the base period.

  15. On run-time exploitation of concurrency

    NARCIS (Netherlands)

    Holzenspies, P.K.F.

    2010-01-01

    The `free' speed-up stemming from ever increasing processor speed is over. Performance increase in computer systems can now only be achieved through parallelism. One of the biggest challenges in computer science is how to map applications onto parallel computers. Concurrency, seen as the set of

  16. Concurrent training with different aerobic exercises.

    Science.gov (United States)

    Silva, R F; Cadore, E L; Kothe, G; Guedes, M; Alberton, C L; Pinto, S S; Pinto, R S; Trindade, G; Kruel, L F M

    2012-08-01

    The aim of the present study was to compare the effects of using different intensities and types of aerobic exercise (i. e., cycle ergometer or running) during concurrent training on neuromuscular adaptations. A total of 44 young women were randomly assigned to 1 of 4 groups: concurrent strength and continuous running training (SCR, n=10), concurrent strength and interval running training (SIR, n=11), concurrent strength and continuous cycle ergometer training (SCE, n=11), or strength training only (STO, n=12). Each group trained twice a week during 11 weeks. The following strength measurements were made on all subjects before and after training period: maximal strength (1RM) in knee extension, bench press and leg press exercises; local muscular endurance (number of repetitions at 70% of 1 RM) in knee extension and bench press exercises; and isometric and isokinetic peak torque of knee extension. There were significant increases in the upper and lower-body 1 RM, isometric and isokinetic peak torque in all training groups (pconcurrent training performed twice a week promotes similar neuromuscular adaptations to strength training alone, regardless of the type and the intensity in which the aerobic training is performed. © Georg Thieme Verlag KG Stuttgart · New York.

  17. Effect of Concurrent Trypanosoma brucei Infection on ...

    African Journals Online (AJOL)

    Reduction in the packed cell volume, increased erythrocyte sedimentation rate, persistent monocytosis and leucopenia characterised by lymphopenia and neutropenia were associated with the concurrent infection while Haemonchus infection alone resulted in persistent eosinophilia. The results of the study show that a ...

  18. Proceedings 8th Interaction and Concurrency Experience

    DEFF Research Database (Denmark)

    2015-01-01

    This volume contains the proceedings of ICE 2015, the 8th Interaction and Concurrency Experience, which was held in Grenoble, France on the 4th and 5th of June 2015 as a satellite event of DisCoTec 2015. The ICE procedure for paper selection allows PC members to interact, anonymously, with author...

  19. Concurrency meets probability: theory and practice (abstract)

    NARCIS (Netherlands)

    Katoen, Joost P.

    Treating random phenomena in concurrency theory has a long tradition. Petri nets [18, 10] and process algebras [14] have been extended with probabilities. The same applies to behavioural semantics such as strong and weak (bi)simulation [1], and testing pre-orders [5]. Beautiful connections between

  20. Concurrent Engineering in seafood product development

    DEFF Research Database (Denmark)

    Jonsdottir, Stella; Vesterager, Johan; Børresen, Torger

    1998-01-01

    Concurrent Engineering (CE) can provide an improved approach to product development for extending the lines of seafood products. Information technology support tools based on product models can provide an integrated and simultaneous approach for specifying new recipes. The seafood industry can...... techniques. it is anticipated that other food industries also can benefit from the more simultaneous approach...

  1. Concurrent conditions in patients with chronic constipation: a population-based study.

    Directory of Open Access Journals (Sweden)

    Gaurav Arora

    Full Text Available BACKGROUND: Chronic constipation (CC is a common condition but its concurrent conditions are not well characterized. We measured the prevalence and risk of developing 15 pre-specified concurrent conditions in patients with CC. METHODS: Retrospective cohort study using the Medicaid database of California, utilizing ICD-9 codes for detection of cases (CC, controls (patients with GERD and concurrent conditions. Study period was 01/01/1995 to 06/30/2005. Index date was the date 3 months before the first physician visit for CC. Pre-index time (12 months was compared to post-index time (12 months to assess the association of every concurrent condition within each cohort. To account for ascertainment bias, an adjusted odds ratio was calculated by comparing the odds ratio for every concurrent condition in the CC cohort to that in the GERD cohort. RESULTS: 147,595 patients with CC (mean age 54.2 years; 69.7% women; 36.2% white and 142,086 patients with GERD (mean age 56.3 years; 65.3% women; 41.6% white were evaluated. The most prevalent concurrent conditions with CC were hemorrhoids (7.6%, diverticular disease (5.9%, ano-rectal hemorrhage (4.7%, irritable bowel syndrome (3.5% and fecal impaction (2%. When adjusted for ascertainment bias, the most notable associations with CC were Hirschsprung's disease, fecal impaction and ano-rectal conditions such as fissure, fistula, hemorrhage and ulcers. CONCLUSION: Chronic constipation is associated with several concurrent conditions of variable risk and prevalence. To reduce the overall burden of CC, these concurrent conditions need to be addressed.

  2. 33 CFR 165.804 - Snake Island, Texas City, Texas; mooring and fleeting of vessels-safety zone.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Snake Island, Texas City, Texas... Guard District § 165.804 Snake Island, Texas City, Texas; mooring and fleeting of vessels—safety zone. (a) The following is a safety zone: (1) The west and northwest shores of Snake Island; (2) The...

  3. 75 FR 36710 - The Texas Engineering Experiment Station/Texas A&M University System; Notice of Acceptance for...

    Science.gov (United States)

    2010-06-28

    ... COMMISSION The Texas Engineering Experiment Station/Texas A&M University System; Notice of Acceptance for... Facility Operating License No. R-83 (``Application''), which currently authorizes the Texas Engineering Experiment Station/Texas A&M University System (TEES, the licensee) to operate the Nuclear Science Center...

  4. The benefits of transportation investment in Texas.

    Science.gov (United States)

    2017-02-01

    This report highlights the benefits and return on investment of transportation funding in Texas. In total, over : the next decade, Texans will invest $131 billion in statewide infrastructure with a total economic benefit of : an estimated $373 billio...

  5. Texas RPO workshop implementation project summary.

    Science.gov (United States)

    2012-05-01

    This report documents rural planning organization (RPO) workshops conducted throughout Texas. An RPO is a voluntary organization created and governed by locally elected officials responsible for transportation decisions at the local level. RPOs addre...

  6. Achieving the Texas Higher Education Vision

    National Research Council Canada - National Science Library

    Benjamin, Roger

    2000-01-01

    The Texas higher education system faces severe challenges in responding to the twin demands placed on it by economic growth and by the increasing problems of access to higher education that many Texans experience...

  7. Geoscience/engineering characterization of the interwell environment in carbonate reservoirs based on outcrop analogs, Permian Basin, West Texas and New Mexico-stratigraphic hierarchy and cycle stacking facies distribution, and interwell-scale heterogeneity: Grayburg Formation, New Mexico. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Barnaby, R.J.; Ward, W.B.; Jennings, J.W. Jr.

    1997-06-01

    The Grayburg Formation (middle Guadalupian) is a major producing interval in the Permian Basin and has yielded more than 2.5 billion barrels of oil in West Texas. Grayburg reservoirs have produced, on average, less than 30 percent of their original oil in place and are undergoing secondary and tertiary recovery. Efficient design of such enhanced recovery programs dictates improved geological models to better understand and predict reservoir heterogeneity imposed by depositional and diagenetic controls. The Grayburg records mixed carbonate-siliciclastic sedimentation on shallow-water platforms that rimmed the Delaware and Midland Basins. Grayburg outcrops in the Guadalupe and Brokeoff Mountains region on the northwest margin of the Delaware Basin present an opportunity to construct a detailed, three-dimensional image of the stratigraphic and facies architecture. This model can be applied towards improved description and characterization of heterogeneity in analogous Grayburg reservoirs. Four orders of stratigraphic hierarchy are recognized in the Grayburg Formation. The Grayburg represents a long-term composite sequence composed of four high-frequency sequences (HFS 1-4). Each HFS contains several composite cycles comprising two or more cycles that define intermediate-scale transgressive-regressive successions. Cycles are the smallest scale upward-shoaling vertical facies successions that can be recognized and correlated across various facies tracts. Cycles thus form the basis for establishing the detailed chronostratigraphic correlations needed to delineate facies heterogeneity.

  8. Extreme weather caused by concurrent cyclone, front and thunderstorm occurrences.

    Science.gov (United States)

    Dowdy, Andrew J; Catto, Jennifer L

    2017-01-11

    Phenomena such as cyclones, fronts and thunderstorms can cause extreme weather in various regions throughout the world. Although these phenomena have been examined in numerous studies, they have not all been systematically examined in combination with each other, including in relation to extreme precipitation and extreme winds throughout the world. Consequently, the combined influence of these phenomena represents a substantial gap in the current understanding of the causes of extreme weather events. Here we present a systematic analysis of cyclones, fronts and thunderstorms in combination with each other, as represented by seven different types of storm combinations. Our results highlight the storm combinations that most frequently cause extreme weather in various regions of the world. The highest risk of extreme precipitation and extreme wind speeds is found to be associated with a triple storm type characterized by concurrent cyclone, front and thunderstorm occurrences. Our findings reveal new insight on the relationships between cyclones, fronts and thunderstorms and clearly demonstrate the importance of concurrent phenomena in causing extreme weather.

  9. Transactions Concurrency Control in Web Service Environment

    DEFF Research Database (Denmark)

    Alrifai, Mohammad; Dolog, Peter; Nejdl, Wolfgang

    2006-01-01

    an engineering point of view as it does not change the way consumers or clients of web services have to be programmed. Furthermore, it avoids direct communication between transaction coordinators which preserves security by keeping the information about business transactions restricted to the coordinators which......Business transactions in web service environments run with relaxed isolation and atomicity property. In such environments, transactions can commit and roll back independently on each other. Transaction management has to reflect this issue and address the problems which result for example from...... concurrent access to web service resources and data. In this paper we propose an extension to the WS-Transaction Protocol which ensures the consistency of the data when independent business transactions access the data concurrently under the relaxed transaction properties. Our extension is based...

  10. Authentic And Concurrent Evaluation-refining

    DEFF Research Database (Denmark)

    Eriksson, Carina Ihlström; Åkesson, Maria; Kautz, Karlheinz

    2011-01-01

    This paper addresses the need for more detailed accounts for evaluation in design science research literature. By revisiting a design project regarding the future e-newspaper we give detailed descriptions of its authentic and concurrent evaluation approach by illustrating the what, why and how...... of all evaluation activities throughout the whole project. The project produced seven different design artifacts that were evaluated. The utility and theoretical outcomes of the evaluation activities clearly influenced design decisions regarding newspaper design, user value and business model design...... as well as decisions on strategic levels. We emphasize a holistic and concurrent approach to evaluation compared to the general design science research thinking and argue that reflecting on how to seek authenticity is important. By authenticity we refer to the notion of how closely an evaluation captures...

  11. Geology and geohydrology of the east Texas Basin. Report on the progress of nuclear waste isolation feasibility studies (1979)

    Energy Technology Data Exchange (ETDEWEB)

    Kreitler, C.W.; Agagu, O.K.; Basciano, J.M.

    1980-01-01

    The program to investigate the suitability of salt domes in the east Texas Basin for long-term nuclear waste repositories addresses the stability of specific domes for potential repositories and evaluates generically the geologic and hydrogeologic stability of all the domes in the region. Analysis during the second year was highlighted by a historical characterization of East Texas Basin infilling, the development of a model to explain the growth history of the domes, the continued studies of the Quaternary in East Texas, and a better understanding of the near-dome and regional hydrology of the basin. Each advancement represents a part of the larger integrated program addressing the critical problems of geologic and hydrologic stabilities of salt domes in the East Texas Basin.

  12. Regional tertiary cross sections: Texas Gulf Coast

    Energy Technology Data Exchange (ETDEWEB)

    Debout, D.G.; Luttrell, P.E.; Seo, J.H.

    1976-01-01

    Regional studies of the Frio Formation along the Texas Gulf Coast were conducted to evaluate potential geothermal energy from deep, geopressured sandstone reservoirs. Published regional cross sections, unpublished cross sections provided by several major oil companies, and extensive micropaleontological and electrical-log files at the Bureau of Economic Geology served as basic data. These sections are meant to show gross regional distribution of sand and shale facies both laterally and vertically throughout the entire Tertiary section along the Texas Gulf Coast.

  13. Making Texas Restaurants Healthier for Children

    Centers for Disease Control (CDC) Podcasts

    2014-12-30

    Sylvia Crixell, PhD, RD, Professor of Nutrition at Texas State University, discusses her study which details the success of a community-based program in Texas aimed at combatting childhood obesity by improving children’s menus in restaurants.  Created: 12/30/2014 by Preventing Chronic Disease (PCD), National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 12/30/2014.

  14. First order proofs for concurrent programs

    OpenAIRE

    Juan Sanz, Víctor de

    2016-01-01

    We study the uniform verification problem for infinite state processes. The problem consists on proving the parallel composition of an arbitrary number of processes running the same program satisfies a temporal property. As the general problem is too big for a bachelor thesis, we restrict our attention to concurrent implementations of sets using single linked list theory. We reduce the verification to the validity of formulas in this theory. By validity we mean that certain pro...

  15. Micro-transactions for concurrent data structures

    DEFF Research Database (Denmark)

    Meawad, Fadi; Iyer, Karthik; Schoeberl, Martin

    2013-01-01

    implementation of transactional memory that we call micro-transactions. In particular, we argue that hardware support for micro-transactions allows us to efficiently implement certain data structures. Those data structures are difficult to realize with the atomic operations provided by stock hardware and provide......, atomic instructions, and micro-transactions. Our results suggest that transactional memory is an interesting alternative to traditional concurrency control mechanisms....

  16. The Family of Concurrent Logic Programming Languages

    Science.gov (United States)

    1989-05-01

    concurrent logic programming can be found in [162]. Procs pipes: linear press networks The following program is a parallel implementation of the Sieve of... Eratosthenes [163]. It consists of a process generating all integers in the desired range, and a set of filter proceses, one per prime number found...computation terminates or deadlocks. To improve upon this the guard sake~o(L) can be added to the other clauses of the meta-interpreter. This ensures that

  17. Verified compilation of Concurrent Managed Languages

    Science.gov (United States)

    2017-11-01

    DISTRIBUTION STATEMENT. FOR THE CHIEF ENGINEER: / S / / S / STEVEN L. DRAGER JOHN D. MATYJAS Work Unit Manager Technical Advisor, Computing...sequential optimizations, and hence al- lows such arguments to be effectively applied to potentially racy, lock -free, concurrent code. This particular...fine-grained implementations. We illustrate our approach by considering the following low-level code snippet that attempts to acquire a lock (akin to a

  18. Concurrent Data Structures Linked in Time

    OpenAIRE

    Delbianco, G. A.; Sergey, I.; Nanevski, A.; Banerjee, A.

    2017-01-01

    Arguments about correctness of a concurrent data structure are typically carried out by using the notion of linearizability and specifying the linearization points of the data structure's procedures. Such arguments are often cumbersome as the linearization points' position in time can be dynamic (depend on the interference, run-time values and events from the past, or even future), non-local (appear in procedures other than the one considered), and whose position in the execution trace may on...

  19. Continuous Activity Monitoring During Concurrent Chemoradiotherapy

    Energy Technology Data Exchange (ETDEWEB)

    Ohri, Nitin, E-mail: ohri.nitin@gmail.com [Department of Radiation Oncology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York (United States); Kabarriti, Rafi; Bodner, William R.; Mehta, Keyur J. [Department of Radiation Oncology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York (United States); Shankar, Viswanathan [Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York (United States); Halmos, Balazs; Haigentz, Missak [Department of Oncology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York (United States); Rapkin, Bruce [Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York (United States); Guha, Chandan; Kalnicki, Shalom; Garg, Madhur [Department of Radiation Oncology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York (United States)

    2017-04-01

    Purpose: To perform a prospective trial testing the feasibility and utility of acquiring activity data as a measure of health status during concurrent chemoradiotherapy. Methods and Materials: Ambulatory patients who were planned for treatment with concurrent chemoradiotherapy with curative intent for cancers of the head and neck, lung, or gastrointestinal tract were provided with activity monitors before treatment initiation. Patients were asked to wear the devices continuously throughout the radiation therapy course. Step count data were downloaded weekly during radiation therapy and 2 and 4 weeks after radiation therapy completion. The primary objective was to demonstrate feasibility, defined as collection of step counts for 80% of the days during study subjects' radiation therapy courses. Secondary objectives included establishing step count as a dynamic predictor of unplanned hospitalization risk. Results: Thirty-eight enrolled patients were treated with concurrent chemoradiotherapy. Primary diagnoses included head and neck cancer (n=11), lung cancer (n=13), and a variety of gastrointestinal cancers (n=14). Step data were collected for 1524 of 1613 days (94%) during patients' radiation therapy courses. Fourteen patients were hospitalized during radiation therapy or within 4 weeks of radiation therapy completion. Cox regression modeling demonstrated a significant association between recent step counts (3-day average) and hospitalization risk, with a 38% reduction in the risk of hospitalization for every 1000 steps taken each day (hazard ratio 0.62, 95% confidence interval 0.46-0.83, P=.002). Inferior quality of life scores and impaired performance status were not associated with increased hospitalization risk. Conclusion: Continuous activity monitoring during concurrent chemoradiotherapy is feasible and well-tolerated. Step counts may serve as powerful, objective, and dynamic indicators of hospitalization risk.

  20. Wastewater Characterization Survey Atlantic City Air National Guard Base, New Jersey

    National Research Council Canada - National Science Library

    Gillen, Jeffrey

    1997-01-01

    Armstrong Laboratory Occupational and Environmental Health Directorate (AL/OEBW), Brooks Air Force Base, Texas conducted a wastewater characterization survey at Atlantic City Air National Guard Base (ACANGB...

  1. Concurrent chemotherapy and radiotherapy for cervical cancer.

    Science.gov (United States)

    Martín-Martínez, A; Molano, F; Lloret, M; Falcón-Vizcaino, O; García-Hernández, J A

    2003-01-01

    To compare the results obtained following treatment, from a group of patients with locally advanced cervical cancer (Stage IB or higher) treated with concurrent chemotherapy and radiotherapy in relation to a group of patients treated exclusively with radiotherapy. All patients treated with concurrent chemotherapy and radiotherapy at the Gynaecologic Oncology Unit of the University Hospital Materno Infantil of the Canaries between 1999 and 2000, both inclusive, were included. The first group to be considered was formed by patients who received combined treatment. The second group of patients received radiotherapy exclusively, having been treated in previous years (1997-1998 period). The results were compared in relation to survival in the two following years from treatment (2000-2001) in the group of combined treatment and years 1999-2000 in the group that received only radiotherapy. To compare the survival of both groups the chi-square test and Odds Ratio were utilised. The groups compared are homogeneous when looking at the stage of the disease when diagnosed, the histological type of tumour and its degree of cellular differentiation, the CAT results and tumoral markers. Survival of more than two years was observed in the group treated with concurrent chemotherapy and radiotherapy in relation to the group treated exclusively with radiotherapy; chi-square 9.92, p < 0.01, OR: 0.1 (0.01-0.6).

  2. Managing Asynchronous Data in ATLAS's Concurrent Framework

    CERN Document Server

    AUTHOR|(INSPIRE)INSPIRE-00100895; The ATLAS collaboration; Baines, John; Bold, Tomasz; Calafiura, Paolo; Cranshaw, Jack; Dotti, Andrea; Farrell, Steven; Malon, David; Stewart, Graeme; Snyder, Scott; van Gemmeren, Peter; Tsulaia, Vakhtang; Wynne, Benjamin

    2016-01-01

    In order to be able to make effective use of emerging hardware, where the amount of memory available to any CPU is rapidly decreasing as the core count continues to rise, ATLAS has begun a migration to a concurrent, multi-threaded software framework, known as AthenaMT. Significant progress has been made in implementing AthenaMT - we can currently run realistic Geant4 simulations on massively concurrent machines. the migration of realistic prototypes of reconstruction workflows is more difficult, given the large amounts of legacy code and the complexity and challenges of reconstruction software. These types of workflows, however, are the types that will most benefit from the memory reduction features of a multi-threaded framework. One of the challenges that we will report on in this paper is the re-design and implementation of several key asynchronous technologies whose behaviour is radically different in a concurrent environment than in a serial one, namely the management of Conditions data and the Detector D...

  3. Symbolic Analysis of Concurrent Programs with Polymorphism

    Science.gov (United States)

    Rungta, Neha Shyam

    2010-01-01

    The current trend of multi-core and multi-processor computing is causing a paradigm shift from inherently sequential to highly concurrent and parallel applications. Certain thread interleavings, data input values, or combinations of both often cause errors in the system. Systematic verification techniques such as explicit state model checking and symbolic execution are extensively used to detect errors in such systems [7, 9]. Explicit state model checking enumerates possible thread schedules and input data values of a program in order to check for errors [3, 9]. To partially mitigate the state space explosion from data input values, symbolic execution techniques substitute data input values with symbolic values [5, 7, 6]. Explicit state model checking and symbolic execution techniques used in conjunction with exhaustive search techniques such as depth-first search are unable to detect errors in medium to large-sized concurrent programs because the number of behaviors caused by data and thread non-determinism is extremely large. We present an overview of abstraction-guided symbolic execution for concurrent programs that detects errors manifested by a combination of thread schedules and data values [8]. The technique generates a set of key program locations relevant in testing the reachability of the target locations. The symbolic execution is then guided along these locations in an attempt to generate a feasible execution path to the error state. This allows the execution to focus in parts of the behavior space more likely to contain an error.

  4. Concurrency bugs in open source software: a case study

    National Research Council Canada - National Science Library

    Abbaspour Asadollah, Sara; Sundmark, Daniel; Eldh, Sigrid; Hansson, Hans

    2017-01-01

    ...., deadlocks and race conditions. In aiming to increase efficiency and effectiveness of debugging and bug-fixing for concurrent software, a deep understanding of concurrency bugs, their frequency and fixing-times would be helpful...

  5. Construction disputes in Denmark: the case of concurrent delay

    DEFF Research Database (Denmark)

    Cavaleri, Sylvie Cécile

    2015-01-01

    Through a case study of decisions on concurrent delay, the article discusses the defining features of Danish construction arbitration.......Through a case study of decisions on concurrent delay, the article discusses the defining features of Danish construction arbitration....

  6. Toward Concurrent Lock-Free Queues on GPUs

    National Research Council Canada - National Science Library

    ZHANG, Xiangyu; DENG, Yangdong; MU, Shuai

    2014-01-01

    .... In this work, we proposed an efficient concurrent queue data structure for GPU computing. The GPU based provably correct, lock-free FIFO queue allows a massive number of concurrent producers and consumers...

  7. Rising Above the Storm: DIG TEXAS

    Science.gov (United States)

    Ellins, K. K.; Miller, K. C.; Bednarz, S. W.; Mosher, S.

    2011-12-01

    For a decade Texas educators, scientists and citizens have shown a commitment to earth science education through planning at the national and state levels, involvement in earth science curriculum and teacher professional development projects, and the creation of a model senior level capstone Earth and Space Science course first offered in 2010 - 2011. The Texas state standards for Earth and Space Science demonstrate a shift to rigorous content, career relevant skills and use of 21st century technology. Earth and Space Science standards also align with the Earth Science, Climate and Ocean Literacy framework documents. In spite of a decade of progress K-12 earth science education in Texas is in crisis. Many school districts do not offer Earth and Space Science, or are using the course as a contingency for students who fail core science subjects. The State Board for Educator Certification eliminated Texas' secondary earth science teacher certification in 2009, following the adoption of the new Earth and Space Science standards. This makes teachers with a composite teacher certification (biology, physics and chemistry) eligible to teach Earth and Space Science, as well other earth science courses (e.g., Aquatic Science, Environmental Systems/Science) even if they lack earth science content knowledge. Teaching materials recently adopted by the State Board of Education do not include Earth and Space Science resources. In July 2011 following significant budget cuts at the 20 Education Service Centers across Texas, the Texas Education Agency eliminated key staff positions in its curriculum division, including science. This "perfect storm" has created a unique opportunity for a university-based approach to confront the crisis in earth science education in Texas which the Diversity and Innovation in the Geosciences (DIG) TEXAS alliance aims to fulfill. Led by the Texas A&M University College of Geosciences and The University of Texas Jackson School of Geosciences, with

  8. Correlation between Trichomonas vaginalis and Concurrency: An Ecological Study

    OpenAIRE

    Kenyon, Chris R.; Deven T. Hamilton

    2016-01-01

    Objective. There is a large variation in the prevalence of Trichomonas vaginalis (TV) between different countries and between racial groups within countries. Sexual partner concurrency may play a role. We investigate the correlation between the prevalence of sexual partner concurrency and TV prevalence. Methods. Spearman's correlation to assess relationship between TV prevalence in women and point prevalence of concurrency in men in (1) 11 countries with comparable data (concurrency data from...

  9. Association of HIV prevalence and concurrency of sexual ...

    African Journals Online (AJOL)

    In multivariate analysis, only the point prevalence of concurrency remained associated with HIV prevalence. Conclusion. There is evidence of a high prevalence of point concurrency in sexual partnerships in SA's most HIV-affected language groups. Together with evidence that relatively small decreases in concurrency can ...

  10. The rise of concurrent care for veterans with advanced cancer at the end of life.

    Science.gov (United States)

    Mor, Vincent; Joyce, Nina R; Coté, Danielle L; Gidwani, Risha A; Ersek, Mary; Levy, Cari R; Faricy-Anderson, Katherine E; Miller, Susan C; Wagner, Todd H; Kinosian, Bruce P; Lorenz, Karl A; Shreve, Scott T

    2016-03-01

    Unlike Medicare, the Veterans Health Administration (VA) health care system does not require veterans with cancer to make the "terrible choice" between receipt of hospice services or disease-modifying chemotherapy/radiation therapy. For this report, the authors characterized the VA's provision of concurrent care, defined as days in the last 6 months of life during which veterans simultaneously received hospice services and chemotherapy or radiation therapy. This retrospective cohort study included veteran decedents with cancer during 2006 through 2012 who were identified from claims with cancer diagnoses. Hospice and cancer treatment were identified using VA and Medicare administrative data. Descriptive statistics were used to characterize the changes in concurrent care, hospice, palliative care, and chemotherapy or radiation treatment. The proportion of veterans receiving chemotherapy or radiation therapy remained stable at approximately 45%, whereas the proportion of veterans who received hospice increased from 55% to 68%. The receipt of concurrent care also increased during this time from 16.2% to 24.5%. The median time between hospice initiation and death remained stable at around 21 days. Among veterans who received chemotherapy or radiation therapy in their last 6 months of life, the median time between treatment termination and death ranged from 35 to 40 days. There was considerable variation between VA medical centers in the use of concurrent care (interquartile range, 16%-34% in 2012). Concurrent receipt of hospice and chemotherapy or radiation therapy increased among veterans dying from cancer without reductions in the receipt of cancer therapy. This approach reflects the expansion of hospice services in the VA with VA policy allowing the concurrent receipt of hospice and antineoplastic therapies. Cancer 2016;122:782-790. © 2015 American Cancer Society. Published 2015. This article is a U.S. Government work and is in the public domain in the USA.

  11. Prevalence of Salmonella among waterfowl along the Texas Gulf coast.

    Science.gov (United States)

    Grigar, M K; Cummings, K J; Rankin, S C

    2017-12-01

    Migratory waterfowl may play a role in the ecology and transmission of zoonotic pathogens, given their ability to travel long distances and their use of varied habitats. Our objectives were to estimate the prevalence of Salmonella among waterfowl along the Texas Gulf coast and to characterize the isolates. Faecal samples were collected from hunter-harvested waterfowl at four wildlife management areas from September through November, 2016. Standard bacteriologic culture methods were used to isolate Salmonella from samples, and isolates were characterized by serotyping and anti-microbial susceptibility testing. The apparent prevalence of faecal Salmonella shedding was 0.5% (2/375). Serotypes identified were Thompson and Braenderup, and both isolates were susceptible to all anti-microbial agents tested. Although faecal contamination of agricultural fields or surface waters could serve as a potential source of zoonotic Salmonella transmission, waterfowl along the Gulf coast during the fall hunting season appear to pose minimal risk. © 2017 Blackwell Verlag GmbH.

  12. Concurrent exercise training: do opposites distract?

    Science.gov (United States)

    Coffey, Vernon G; Hawley, John A

    2017-05-01

    Specificity is a core principle of exercise training to promote the desired adaptations for maximising athletic performance. The principle of specificity of adaptation is underpinned by the volume, intensity, frequency and mode of contractile activity and is most evident when contrasting the divergent phenotypes that result after undertaking either prolonged endurance or resistance training. The molecular profiles that generate the adaptive response to different exercise modes have undergone intense scientific scrutiny. Given divergent exercise induces similar signalling and gene expression profiles in skeletal muscle of untrained or recreationally active individuals, what is currently unclear is how the specificity of the molecular response is modified by prior training history. The time course of adaptation and when 'phenotype specificity' occurs has important implications for exercise prescription. This context is essential when attempting to concomitantly develop resistance to fatigue (through endurance-based exercise) and increased muscle mass (through resistance-based exercise), typically termed 'concurrent training'. Chronic training studies provide robust evidence that endurance exercise can attenuate muscle hypertrophy and strength but the mechanistic underpinning of this 'interference' effect with concurrent training is unknown. Moreover, despite the potential for several key regulators of muscle metabolism to explain an incompatibility in adaptation between endurance and resistance exercise, it now seems likely that multiple integrated, rather than isolated, effectors or processes generate the interference effect. Here we review studies of the molecular responses in skeletal muscle and evidence for the interference effect with concurrent training within the context of the specificity of training adaptation. © 2016 The Authors. The Journal of Physiology © 2016 The Physiological Society.

  13. Concurrent conditional clustering of multiple networks: COCONETS.

    Directory of Open Access Journals (Sweden)

    Sabrina Kleessen

    Full Text Available The accumulation of high-throughput data from different experiments has facilitated the extraction of condition-specific networks over the same set of biological entities. Comparing and contrasting of such multiple biological networks is in the center of differential network biology, aiming at determining general and condition-specific responses captured in the network structure (i.e., included associations between the network components. We provide a novel way for comparison of multiple networks based on determining network clustering (i.e., partition into communities which is optimal across the set of networks with respect to a given cluster quality measure. To this end, we formulate the optimization-based problem of concurrent conditional clustering of multiple networks, termed COCONETS, based on the modularity. The solution to this problem is a clustering which depends on all considered networks and pinpoints their preserved substructures. We present theoretical results for special classes of networks to demonstrate the implications of conditionality captured by the COCONETS formulation. As the problem can be shown to be intractable, we extend an existing efficient greedy heuristic and applied it to determine concurrent conditional clusters on coexpression networks extracted from publically available time-resolved transcriptomics data of Escherichia coli under five stresses as well as on metabolite correlation networks from metabolomics data set from Arabidopsis thaliana exposed to eight environmental conditions. We demonstrate that the investigation of the differences between the clustering based on all networks with that obtained from a subset of networks can be used to quantify the specificity of biological responses. While a comparison of the Escherichia coli coexpression networks based on seminal properties does not pinpoint biologically relevant differences, the common network substructures extracted by COCONETS are supported by

  14. Coinductive Big-Step Semantics for Concurrency

    Directory of Open Access Journals (Sweden)

    Tarmo Uustalu

    2013-12-01

    Full Text Available In a paper presented at SOS 2010, we developed a framework for big-step semantics for interactive input-output in combination with divergence, based on coinductive and mixed inductive-coinductive notions of resumptions, evaluation and termination-sensitive weak bisimilarity. In contrast to standard inductively defined big-step semantics, this framework handles divergence properly; in particular, runs that produce some observable effects and then diverge, are not "lost". Here we scale this approach for shared-variable concurrency on a simple example language. We develop the metatheory of our semantics in a constructive logic.

  15. Concurrency control in distributed database systems

    CERN Document Server

    Cellary, W; Gelenbe, E

    1989-01-01

    Distributed Database Systems (DDBS) may be defined as integrated database systems composed of autonomous local databases, geographically distributed and interconnected by a computer network.The purpose of this monograph is to present DDBS concurrency control algorithms and their related performance issues. The most recent results have been taken into consideration. A detailed analysis and selection of these results has been made so as to include those which will promote applications and progress in the field. The application of the methods and algorithms presented is not limited to DDBSs but a

  16. Synthesis, characterization, and ligand behaviour of a new ditelluroether (C10H7)Te(CH2)4Te(C10H7) and the concurrently formed ionic [(C10H7)Te(CH2)4]Br.

    Science.gov (United States)

    Poropudas, Merja J; Rautiainen, J Mikko; Oilunkaniemi, Raija; Laitinen, Risto S

    2016-11-01

    The reaction of 1-naphthyl bromide with n-butyl lithium, elemental tellurium, and 1,4-dibromobutane in THF affords both (C10H7)Te(CH2)4Te(C10H7) (1) and [(C10H7)Te(CH2)4]Br (2) in good yields. 1 is preferentially formed at low temperatures and is a rare example of a structurally characterized ditelluroether in which the tellurium atoms are bridged by a hydrocarbon chain. In the solid state, 1 shows secondary bonding TeTe interactions, which connect the molecules into layers which are further linked to 3-dimensional frameworks by TeH hydrogen bonds. [(C10H7)Te(CH2)4]Br (2) is formed concurrently during the synthesis of 1 and is the main product, when the reaction is carried out at room temperature. The revPBE/def2-TZVPP calculations of the reaction profiles indicate that the formation of 2 is somewhat more favourable than that of 1. Furthermore, at room temperature the activation energy for the formation of 2 is lower than that of 1. At low temperatures the activation energy of the reaction leading to 1 is lower than that to 2, which is consistent with the synthetic observations. When 1 was treated with CuBr, [Cu2(μ-Br)2{μ-(C10H7)Te(CH2)4Te(C10H7)}2] (3) was formed. It crystallizes as two polymorphs (3a) and (3b) in which both the packing and the conformation of the ditelluroether ligands are different. The reaction of 1 with HgCl2 produces [(C10H7)Te(CH2)4]2[HgCl4]·CH2Cl2 (4·CH2Cl2) and that of 1 with CuCl2 affords [(C10H7)Te(CH2)4]Cl (5). 2 and 5 are isomorphous.

  17. Texas site selection and licensing status

    Energy Technology Data Exchange (ETDEWEB)

    Avant, R.V. Jr.

    1989-11-01

    Texas has identified a potential site in Hudspeth County in far West Texas near the town of Fort Hancock. Over the past year the Texas Low-Level Radioactive Waste Disposal Authority has been conducting detailed geology, hydrology, meteorology, soils, and flora and fauna evaluations. An authorization by the Board of Directors of the Authority to proceed with a license application, assuming that the detailed evaluation indicates that the site is suitable, is expected by September. A prototype license has been prepared in anticipation of the order to proceed with licensing, and the formal license application is expected to be submitted to the Texas Department of Health-Bureau of Radiation Control in December, meeting the license application milestone. Although site selection processes in all siting areas across the country have experienced organized opposition, El Paso County has funded a particularly well-organized, well-financed program to legally and technically stop consideration of the Fort Hancock site prior to the licensing process. Many procedural, regulatory, and technical issues have been raised which have required responses from the Authority in order to proceed with licensing. This has provided a unique perspective of what to expect from well-organized opposition at the licensing stage. This paper presents an update on the Texas siting activity with detailed information on the site evaluation and license application. Experience of dealing with issues raised by opposition relating to NRC guidelines and rules is also discussed.

  18. Commercial truck platooning demonstration in Texas – level 2 automation.

    Science.gov (United States)

    2017-08-01

    Through this project, the Texas Department of Transportation (TxDOT) funded the creation of a comprehensive truck platooning demonstration in Texas, serving as a proactive effort in assessing innovative operational strategies to position TxDOT as a l...

  19. Concurrent sound segregation is enhanced in musicians.

    Science.gov (United States)

    Zendel, Benjamin Rich; Alain, Claude

    2009-08-01

    The ability to segregate simultaneously occurring sounds is fundamental to auditory perception. Many studies have shown that musicians have enhanced auditory perceptual abilities; however, the impact of musical expertise on segregating concurrently occurring sounds is unknown. Therefore, we examined whether long-term musical training can improve listeners' ability to segregate sounds that occur simultaneously. Participants were presented with complex sounds that had either all harmonics in tune or the second harmonic mistuned by 1%, 2%, 4%, 8%, or 16% of its original value. The likelihood of hearing two sounds simultaneously increased with mistuning, and this effect was greater in musicians than nonmusicians. The segregation of the mistuned harmonic from the harmonic series was paralleled by an object-related negativity that was larger and peaked earlier in musicians. It also coincided with a late positive wave referred to as the P400 whose amplitude was larger in musicians than in nonmusicians. The behavioral and electrophysiological effects of musical expertise were specific to processing the mistuned harmonic as the N1, the N1c, and the P2 waves elicited by the tuned stimuli were comparable in both musicians and nonmusicians. These results demonstrate that listeners' ability to segregate concurrent sounds based on harmonicity is modulated by experience and provides a basis for further studies assessing the potential rehabilitative effects of musical training on solving complex scene analysis problems illustrated by the cocktail party example.

  20. Concurrent work with parents of adolescent patients.

    Science.gov (United States)

    Novick, Kerry Kelly; Novick, Jack

    2013-01-01

    Over the last ten years we have seen an increasing acceptance of the general idea of working with parents of child patients. What remains, however, as an area of controversy, conflict, and resistance, is the question of whether and how much therapists should or can work with the parents of adolescent patients. Questions cluster around how to maintain confidentiality and lead to the even larger issue of conceptualizing the developmental goals of the phase of adolescence. We see the major developmental tasks for both parents and adolescents as involving transformation of the self and the relationship, in the context of separateness rather than separation. If adolescent therapists work from the assumption that the goal of adolescence is transformation, concurrent work with parents and adolescents will move them all into a new level of relationship. Without concomitant change in parents, it is doubly hard for adolescents to progress into adulthood. In this paper we offer clinical material from five older adolescents and their parents to illustrate the techniques that follow from our model of dynamic concurrent parent work throughout the phases of treatment. Using the tasks of the therapeutic alliance as a conceptual framework, we describe working toward the dual goals of restoration to the path of progressive development and restoration of the parent-child relationship. We pay particular attention to the unfolding of conflicts between closed-system omnipotent functioning and open-system reality mastery, and the role offathers in late-adolescent development.

  1. Evaluation of interaction dynamics of concurrent processes

    Science.gov (United States)

    Sobecki, Piotr; Białasiewicz, Jan T.; Gross, Nicholas

    2017-03-01

    The purpose of this paper is to present the wavelet tools that enable the detection of temporal interactions of concurrent processes. In particular, the determination of interaction coherence of time-varying signals is achieved using a complex continuous wavelet transform. This paper has used electrocardiogram (ECG) and seismocardiogram (SCG) data set to show multiple continuous wavelet analysis techniques based on Morlet wavelet transform. MATLAB Graphical User Interface (GUI), developed in the reported research to assist in quick and simple data analysis, is presented. These software tools can discover the interaction dynamics of time-varying signals, hence they can reveal their correlation in phase and amplitude, as well as their non-linear interconnections. The user-friendly MATLAB GUI enables effective use of the developed software what enables to load two processes under investigation, make choice of the required processing parameters, and then perform the analysis. The software developed is a useful tool for researchers who have a need for investigation of interaction dynamics of concurrent processes.

  2. Teachers and Teaching Conditions in Rural Texas: Policy Brief

    Science.gov (United States)

    Jimerson, Lorna

    2004-01-01

    Over four milliion children go to public schools in Texas; of these, almost half a million (474,000) students attend school in rural areas. Thirty-six percent of rural Texas students are members of a minority group, 46% are poor, and more than 31,000 students in rural Texas do not speak English well. These are Texas-style large numbers that begin…

  3. Concurrent Engineering Working Group White Paper Distributed Collaborative Design: The Next Step in Aerospace Concurrent Engineering

    Science.gov (United States)

    Hihn, Jairus; Chattopadhyay, Debarati; Karpati, Gabriel; McGuire, Melissa; Panek, John; Warfield, Keith; Borden, Chester

    2011-01-01

    As aerospace missions grow larger and more technically complex in the face of ever tighter budgets, it will become increasingly important to use concurrent engineering methods in the development of early conceptual designs because of their ability to facilitate rapid assessments and trades of performance, cost and schedule. To successfully accomplish these complex missions with limited funding, it is essential to effectively leverage the strengths of individuals and teams across government, industry, academia, and international agencies by increased cooperation between organizations. As a result, the existing concurrent engineering teams will need to increasingly engage in distributed collaborative concurrent design. The purpose of this white paper is to identify a near-term vision for the future of distributed collaborative concurrent engineering design for aerospace missions as well as discuss the challenges to achieving that vision. The white paper also documents the advantages of creating a working group to investigate how to engage the expertise of different teams in joint design sessions while enabling organizations to maintain their organizations competitive advantage.

  4. Overview of the Texas Youth Fitness Study.

    Science.gov (United States)

    Morrow, James R; Martin, Scott B; Welk, Gregory J; Zhu, Weimo; Meredith, Marilu D

    2010-09-01

    This paper summarizes the historical and legislative backgrounds leading to statewide testing of health-related physical fitness in Texas children grades 3-12 as mandated by Texas Senate Bill 530. The rationale and goals for an associated research project (the Texas Youth Fitness Study, funded by the Robert Wood Johnson Foundation) to evaluate data collected from the statewide initiative are provided. The study investigated the relations between health-related physical fitness and educational variables, including academic achievement, absenteeism, and negative school incidents. It also provides unique insights into the quality (both reliability and validity) of collected data and implications of large-scale school-based physical fitness testing. Teacher commentary and experiences add to the description of the data collection processes. Last, the relations between psychosocial variables and health-related fitness in middle school students are described.

  5. Texas coral snake (Micrurus tener) bites.

    Science.gov (United States)

    Morgan, David L; Borys, Douglas J; Stanford, Rhandi; Kjar, Dean; Tobleman, William

    2007-02-01

    The clinical features of bites from Texas coral snakes (Micrurus tener) have not been well studied. Our goal was to review the largest number of victims of Texas coral snakebites to determine their characteristics, effects, treatment, and outcome. Retrospective case series of Micrurus tener exposures reported to the Texas Poison Center Network from 2000 to 2004. Eighty-two patients were included in the analysis. Most (57.3%) were 18 to 49-year-old men. Almost 90% had local swelling, pain, erythema, or paresthesias. Only 7.3% had systemic effects, and none of these were severe. Over half received coral snake antivenin, and 15.9% were given opioids for pain. No patient died and no patient required mechanical ventilation due to hypoventilation from the snakebite. There were more local findings and less severe systemic effects than previously reported. Antivenin is not needed for most of these patients, and opioids may be administered safely.

  6. Organizational Behavior Analysis Focusing on the University of Texas System

    Science.gov (United States)

    Terry, Bobby K.

    2011-01-01

    This project analyzes the organizational behavior of the University of Texas System. The University of Texas System is comprised of nine academic and six health institutions. The University of Texas System has over 85,000 employees; the student enrollment is 202,240 with a budget of $2.25 billion dollars. This project has a total of four parts and…

  7. 40 CFR 282.93 - Texas State-Administered Program.

    Science.gov (United States)

    2010-07-01

    ... Underground Storage Tank Program, Texas Natural Resource Conservation Commission, P.O. Box 13087, Austin, TX... reference herein for enforcement purposes. (A) The statutory provisions include: (1) Texas Water Code, Title... Resource Conservation Commission (2) 31 Texas Administrative Code, Chapter 337—Enforcement. (i) Subchapter...

  8. Defining Mara Salvatrucha’s Texas Network

    Science.gov (United States)

    2015-09-01

    the prison gang Mexican Mafia , which ran the street gang Sureño 13 network. Both of those criminal groups are present in Texas. The Texas Department...additional four regions have listed associates of MS 13 as having a significant presence in each of them.9 With the Mexican Mafia having a major presence...the Mexican Mafia or “La Eme” as it is known in places it dominates.99 The number 13 is a reference to the letter “m,” which is the thirteenth letter

  9. Concurrent radiochemotherapy in advanced hypopharyngeal cancer

    Directory of Open Access Journals (Sweden)

    Lukarski Dusko

    2010-05-01

    Full Text Available Abstract Background Concurrent platinum-based radiochemotherapy has been recommended as a standard of care in patients with locally advanced squamous cell head and neck carcinomas. Unfortunately, there is a lack of level one evidence on best treatment approach for advanced hypopharyngeal cancer. This report aims to summarize the results of our study on concurrent radiochemotherapy in patients with advanced hypopharyngeal cancer. Methods A retrospective analysis of 41 patients with stage III-IV hypopharyngeal cancer was performed. All patients were treated with three dimensional conformal radiotherapy and received 70 Gy in 35 fractions (2 Gy per fraction, 5 fractions per week. In dependence of the period when radiotherapy was realized, two different treatment techniques were used. Concurrent chemotherapy consisted of cisplatin 30 mg/m2 given on a weekly basis. Results The median age was 52 years (range 29-70. Stage IV disease was recognized in 73.2% of the patients. Complete response rates at the primary site and at the metastatic neck lymph nodes were 68.3% and 36.6%, respectively. A complete composite response was present in 27 patients (65.9%. Median follow-up was 13 months (range 7-36. Distant metastases as initial failure occurred in 7 patients (46.7%. The 2-year local relapse-free survival and regional relapse-free survival rates were 55.2% and 75.8%, respectively. The 2-year locoregional relapse-free survival rate was 51.3%. The 2-year disease-free survival and overall survival rates were 29.3% and 32.8%, respectively. Confluent mucositis was developed in 46.3% of patients. Leucopenia grade 1 was the most frequent hematological toxicity. The median weight loss at the end of treatment was 12% (range 5-21. The worst grade of late toxicity was most commonly pronounced in the skin and in the subcutaneous tissue. Conclusions Based on unsatisfactory results in our study we suggest that the use of sequential radiochemotherapy or chemotherapy

  10. 75 FR 45695 - Final Federal Agency Actions on Trans-Texas Corridor 35 (TTC-35) in Texas

    Science.gov (United States)

    2010-08-03

    ...- 1342; Land and Water Conservation Fund (LWCF), 16 U.S.C. 4601-4604. 8. Executive Orders: E.O. 11990... Federal Highway Administration Final Federal Agency Actions on Trans-Texas Corridor 35 (TTC-35) in Texas..., extending from the Texas- Oklahoma line to the City of Laredo, generally paralleling existing I- 35 in the...

  11. The Best Choice for a Prosperous Texas: A Texas-Style Personal Income Tax. Policy Brief No. 2

    Science.gov (United States)

    Center for Public Policy Priorities, 2006

    2006-01-01

    Part one of this trilogy of policy briefs explains the challenge facing Texas in funding public education. This policy brief explains why a Texas-style personal income tax is the best way to meet the needs of Texas. Only a personal income tax can significantly reduce reliance on property taxes--cutting the school operations tax from $1.50 to…

  12. Mining Concurrent Topical Activity in Microblog Streams

    CERN Document Server

    Panisson, A; Quaggiotto, M; Cattuto, C

    2014-01-01

    Streams of user-generated content in social media exhibit patterns of collective attention across diverse topics, with temporal structures determined both by exogenous factors and endogenous factors. Teasing apart different topics and resolving their individual, concurrent, activity timelines is a key challenge in extracting knowledge from microblog streams. Facing this challenge requires the use of methods that expose latent signals by using term correlations across posts and over time. Here we focus on content posted to Twitter during the London 2012 Olympics, for which a detailed schedule of events is independently available and can be used for reference. We mine the temporal structure of topical activity by using two methods based on non-negative matrix factorization. We show that for events in the Olympics schedule that can be semantically matched to Twitter topics, the extracted Twitter activity timeline closely matches the known timeline from the schedule. Our results show that, given appropriate techn...

  13. High bandwidth concurrent processing on commodity platforms

    CERN Document Server

    Boosten, M; Van der Stok, P D V

    1999-01-01

    The I/O bandwidth and real-time processing power required for high- energy physics experiments is increasing rapidly over time. The current requirements can only be met by using large-scale concurrent processing. We are investigating the use of a large PC cluster interconnected by Fast and Gigabit Ethernet to meet the performance requirements of the ATLAS second level trigger. This architecture is attractive because of its performance and competitive pricing. A major problem is obtaining frequent high-bandwidth I/O without sacrificing the CPU's processing power. We present a tight integration of a user-level scheduler and a zero-copy communication layer. This system closely approaches the performance of the underlying hardware in terms of both CPU power and I/O capacity. (0 refs).

  14. Concurrent hypokalemic periodic paralysis and bipolar disorder

    Directory of Open Access Journals (Sweden)

    Chia-Lin Lin

    2015-01-01

    Full Text Available Primary periodic paralysis is a rare autosomal dominant disorder of ion-channel dysfunction, manifested by episodic flaccid paresis secondary to abnormal sarcolemma excitability. Membrane destabilization involving Na, K-ATPase has been hypothesized to be a biological etiology of the bipolar disorder (BD and the mechanisms underlying lithium therapy have been linked to it. To date, there has been only one reported case of BD comorbid with periodic paralysis. Herein, we reported another case of concurrent bipolar mania and hypokalemic periodic paralysis (HPP, one special form of periodic paralysis. Consistent with the previous case, our patient responded well to lithium treatment for both bipolar mania and HPP. This might provide some support to the hypothesis that the therapeutic effects of lithium in both BD and HPP could be due to the correction of the underlying common pathophysiology.

  15. Distributed Management of Concurrent Web Service Transactions

    DEFF Research Database (Denmark)

    Alrifai, Mohammad; Dolog, Peter; Balke, Wolf-Tilo

    2009-01-01

    of conventional ACID transaction models for Web services far from being straightforward. Current Web service transaction models relax the isolation property and rely on compensation mechanisms to ensure atomicity of business transactions in the presence of service failures. However, ensuring consistency......Business processes involve dynamic compositions of interleaved tasks. Therefore, ensuring reliable transactional processing of Web services is crucial for the success of Web service-based B2B and B2C applications. But the inherent autonomy and heterogeneity of Web services render the applicability...... in the open and dynamic environment of Web services, where interleaving business transactions enter and exit the system independently, remains an open issue. In this paper, we address this problem and propose an architecture that supports concurrency control on the Web services level. An extension...

  16. Concurrent remote entanglement with continuous variables

    Science.gov (United States)

    Zalys-Geller, E.; Narla, A.; Shankar, S.; Hatridge, M.; Silveri, M.; Sliwa, K. M.; Mundhada, S. O.; Girvin, S. M.; Devoret, M. H.

    A necessary ingredient for large scale quantum information processing is the ability to entangle distant qubits on demand. In the field of superconducting quantum information, this process can be achieved by entangling stationary superconducting qubits with flying coherent states of microwave light, which are then co-amplified by a Josephson Parametric Converter (JPC). The JPC also serves as a which-path information eraser, causing the probabilistic continuous measurement process to concurrently entangle the qubits. We discuss the sensitivity of the experiment to the loss of quantum information during the flight of the coherent states, as well as strategies to improve which-path information erasure and reduce information loss to the degree required for entanglement generation. Work supported by ARO, AFOSR, NSF, and YINQE.

  17. Does Concurrent Training Intensity Distribution Matter?

    Science.gov (United States)

    Varela-Sanz, Adrián; Tuimil, José L; Abreu, Laurinda; Boullosa, Daniel A

    2017-01-01

    Varela-Sanz, A, Tuimil, JL, Abreu, L, and Boullosa, DA. Does concurrent training intensity distribution matter? J Strength Cond Res 31(1): 181-195, 2017-Previous research has demonstrated the influence of intensity distribution on endurance training adaptations. However, no study has addressed the influence of intensity distribution on the effectiveness of concurrent training (CT). The main objective of this study was to compare the effects of 2 CT programs with different training intensity distribution and externally equated loads on physical fitness. Thirty-one sport science students volunteered and were evaluated for resting heart rate variability (HRV), countermovement jump, bench press, half squat, and maximum aerobic speed (MAS). All were randomly distributed into either a traditional-based training group (TT; n = 11; 65-75% of MAS, combined with 10-12 repetition maximum [RM]), polarized training group (PT; n = 10; 35-40% and 120% of MAS, combined with 5RM and 15RM), or control group (CG; n = 10). After 8 weeks of training (3 daysweek), TT and PT exhibited similar improvements in MAS, bench press, and half squat performances. No differences were observed between TT and PT groups for perceived loads. There were no changes in HRV for any group, although TT exhibited a reduction in resting heart rate. Compared with other groups, the PT group maintained jump capacity with an increment in body mass and body mass index without changes in body fatness. In conclusion, PT induced similar improvements in physical fitness of physically active individuals when compared with TT. However, PT produced a lower interference for jumping capacity despite an increment in body mass, whereas TT induced greater bradycardia. Extended studies with different intensity distributions should be conducted to better determine the dose-response of CT in various populations.

  18. Modeling disease spread in populations with birth, death, and concurrency

    CERN Document Server

    Millera, Joel C

    2016-01-01

    The existence of sexual partnerships that overlap in time (concurrent relationships) is believed by some to be a significant contributing factor to the spread of HIV, although this is controversial. We derive an analytic model which allows us to investigate and compare disease spread in populations with and without concurrency. We can identify regions of parameter space in which its impact is negligible, and other regions in which it plays a major role. We also see that the impact of concurrency on the initial growth phase can be much larger than its impact on the equilibrium size. We see that the effect of concurrency saturates, which leads to the perhaps surprising conclusion that interventions targeting concurrency may be most effective in populations with low to moderate levels of concurrency.

  19. A Uniform Approach to the Semantics of Concurrency

    Science.gov (United States)

    1991-12-31

    tulmath.math.tulane.edu Grant of Contract Title: A Uniform Approach to the Semantics of Concurrency Grant or Contract Number: N00014-88-K-0499 Reporting... the Semantics of Concurrency. The format of the report is the same as is used for annual reports to ONR to report progress on continuing contracts and...tulmath.math.tulane.edu Grant of Contract Title: A Uniform Approach to the Semantics of Concurrency Grant or Contract Number: N00014-88-K-0499

  20. Monogamy relations of concurrence for any dimensional quantum systems

    Science.gov (United States)

    Zhu, Xue-Na; Li-Jost, Xianqing; Fei, Shao-Ming

    2017-11-01

    We study monogamy relations for arbitrary dimensional multipartite systems. Monogamy relations based on concurrence and concurrence of assistance for any dimensional m_1⊗ m_2⊗ \\cdots ⊗ mN quantum states are derived, which give rise to the restrictions on the entanglement distributions among the subsystems. Besides, we give the lower bound of concurrence for four-partite mixed states. The approach can be readily generalized to arbitrary multipartite systems.

  1. Solar domestic hot water system installed at Texas City, Texas. Final report

    Energy Technology Data Exchange (ETDEWEB)

    None

    1980-12-01

    The Solar Energy System located at LaQuinta Motor Inn, Texas City, Texas was designed to supply 63% of the total hot water load. The Solar Energy System consists of a 2100 square foot Raypack Liquid Flat Plate Collector Subsystem and a 2500 gallon storage subsystem circulating hot water producing 3.67 x 10/sup 8/ Btu/y. Abstracts from the site files, specification references, drawings, installation, operation and maintenance instructions are included.

  2. C formal verification with unix communication and concurrency

    Science.gov (United States)

    Hoover, Doug N.

    1990-01-01

    The results of a NASA SBIR project are presented in which CSP-Ariel, a verification system for C programs which use Unix system calls for concurrent programming, interprocess communication, and file input and output, was developed. This project builds on ORA's Ariel C verification system by using the system of Hoare's book, Communicating Sequential Processes, to model concurrency and communication. The system runs in ORA's Clio theorem proving environment. The use of CSP to model Unix concurrency and sketch the CSP semantics of a simple concurrent program is outlined. Plans for further development of CSP-Ariel are discussed. This paper is presented in viewgraph form.

  3. An efficient locking model for concurrency control in OODBS

    Directory of Open Access Journals (Sweden)

    G Arumugam

    2006-01-01

    Full Text Available When several transactions execute concurrently in a database, the isolation property may no longer be preserved. It is necessary for the system to control the interaction among the concurrent transactions. This paper presents a new locking model for concurrency control in object oriented database systems. This model is motivated by a desire to provide high concurrency and low locking overheads in accessing objects. The proposed model consists of a rich set of lock modes, hash table, lock-based signatures and B+ trees. The performance study result shows that the proposed model performs well for all possible operations on objects.

  4. A Highly Concurrent Replicated Data Structure EAI Endorsed Transactions

    Directory of Open Access Journals (Sweden)

    Mumtaz Ahmad

    2015-12-01

    Full Text Available Well defined concurrent replicated data structure is very important to design collaborative editing system, particularly, certain properties like out-of-order execution of concurrent operations and data convergence. In this paper, we introduce novel linear data structure based on unique identifier scheme required for indexed communication. These identifiers are real numbers holding specific pattern of precision. Based on the uniqueness and the total order of these identifiers, here, we present two concurrency control techniques to achieve high degree of concurrency according to strong and lazy happened-before relations. Our data structure preserves data convergence, yields better performance and avoids overheads as compared to existing approaches.

  5. 77 FR 8144 - Texas Regulatory Program

    Science.gov (United States)

    2012-02-14

    ... new definition for ``Previously mined land,'' adding new language on the effects of previous mining...-FOR. Texas proposed revisions in TX-061-FOR by ] adding language that no longer requires an operation... new language explaining performance standards for revegetation liability timeframes for coal mining...

  6. Texas FFA Officer Perceptions of Good Followership

    Science.gov (United States)

    Ferrell, Susan Kate; Boyd, Barry L.; Rayfield, John

    2013-01-01

    This study examines Texas FFA officers' perceptions regarding the traits and characteristics that good followers possess. A content analysis of officer responses to an open-ended question found that these young leaders have a limited level of understanding of what constitutes a good follower. Furthermore, female respondents placed a greater…

  7. Teenage Pregnancy in the Texas Panhandle

    Science.gov (United States)

    Galvez-Myles, Rosa; Myles, Thomas D.

    2005-01-01

    Purpose: This study compares rural and small-city teenage and adult pregnancies, with respect to complication rates and pregnancy outcomes. Methods: Chart review of Medicaid patients (513 teenage [under 20 years] and 174 adult controls [ages 25-34]) delivered (excluding multiple gestation) in Amarillo, Texas, from January 1999 to April 2001.…

  8. The State of Education Reform in Texas.

    Science.gov (United States)

    Kirby, William N.

    1986-01-01

    A review is presented of recent educational changes affecting or taking place in Texas, including discussion regarding improved testing measures and results, remedial instruction, programs for students with special needs, grading and promotion standards for students, teacher salaries, teaching conditions, and funding. (CB)

  9. East Texas harvest and utilization study, 2008

    Science.gov (United States)

    Rhonda M. Mathison; James W. Bentley; Tony G. Johnson

    2009-01-01

    In 2008, a harvest and utilization study was conducted on 80 operations throughout eastern Texas. There were 2,024 total trees measured: 1,335 or 66 percent were softwood, while 689 or 34 percent were hardwood. Results from this study showed that 86 percent of the total softwood volume measured was utilized for a product, and 14 percent was left as logging...

  10. The Texas Water Education Network Directory.

    Science.gov (United States)

    Texas Water Development Board, Austin.

    The resource persons and program descriptions in this directory came from answers supplied in a 1988 survey mailed to 135 entities having some relationship to or interest in promoting the distribution of water education materials suitable for use in Texas elementary or secondary schools. This directory includes an update on the programs submitted…

  11. 78 FR 48764 - Texas Disaster # TX-00413

    Science.gov (United States)

    2013-08-09

    ... State of Texas (FEMA-4136- DR), dated 08/02/2013. Incident: Explosion. Incident Period: 04/17/2013 through 04/20/2013. Effective Date: 08/02/2013. Physical Loan Application Deadline Date: 10/01/2013. Economic Injury (EIDL) Loan Application Deadline Date: 05/02/2014. ADDRESSES: Submit completed loan...

  12. Galveston Island, Texas, Sand Management Strategies

    Science.gov (United States)

    2016-07-01

    labeled “Unavailable” is used for recreation but could possibly be scraped occasionally...the main navigation channel into Galveston Bay. This jettied, deep -draft channel, which provides access to the ports of Galveston and Houston, is...shoreline change statistics and cross-shore beach profiles. Texas Bureau of Economic Geology (BEG) supplies shoreline shapefiles via its web page

  13. Innovative Developmental Education Programs: A Texas Model

    Science.gov (United States)

    Booth, Eric A.; Capraro, Mary Margaret; Capraro, Robert M.; Chaudhuri, Nandita; Dyer, James; Marchbanks, Miner P., III

    2014-01-01

    This article provides insights from a 2-year, cross-site evaluation of state funded developmental education sites and serves as a focus article for response by those sites. Receiving grants from the Texas Higher Education Coordinating Board (THECB), nine sites (5 community colleges and 4 universities) implemented innovative developmental education…

  14. West Nile virus, Texas, USA, 2012.

    Science.gov (United States)

    Murray, Kristy O; Ruktanonchai, Duke; Hesalroad, Dawn; Fonken, Eric; Nolan, Melissa S

    2013-11-01

    During the 2012 West Nile virus outbreak in Texas, USA, 1,868 cases were reported. Male patients, persons >65 years of age, and minorities were at highest risk for neuroinvasive disease. Fifty-three percent of counties reported a case; 48% of case-patients resided in 4 counties around Dallas/Fort Worth. The economic cost was >$47.6 million.

  15. 76 FR 50708 - Texas Regulatory Program

    Science.gov (United States)

    2011-08-16

    ... established five years after the last year of augmented seeding, fertilizing, irrigation, or other work in... after the last year of augmented seeding, fertilizing, irrigation, or other work in order to assure... augmented seeding, fertilizing, irrigation, or other work, if the land is previously mined land. E. Texas...

  16. Zero-Based Budgeting: The Texas Experience.

    Science.gov (United States)

    Boyd, William L.

    1982-01-01

    Zero-based budgeting was instituted in all Texas state-funded agencies in 1975-76, including colleges. The first two years of using this procedure are reviewed and its applicability to higher education institutions is examined in light of the need to consider educational quality as well as costs. (MSE)

  17. 75 FR 81122 - Texas Regulatory Program

    Science.gov (United States)

    2010-12-27

    ... did not respond to our request. State Historical Preservation Officer (SHPO) and the Advisory Council on Historic Preservation (ACHP) Under 30 CFR 732.17(h)(4), we are required to request comments from... Part 943, which codify decisions concerning the Texas program. We find that good cause exists under 5 U...

  18. 78 FR 11579 - Texas Regulatory Program

    Science.gov (United States)

    2013-02-19

    ... Preservation Officer (SHPO) and the Advisory Council on Historic Preservation (ACHP) Under 30 CFR 732.17(h)(4... codify decisions concerning the Texas program. We find that good cause exists under 5 U.S.C. 553(d)(3) to...

  19. The Energy-Water Nexus in Texas

    Directory of Open Access Journals (Sweden)

    Ashlynn S. Stillwell

    2011-03-01

    Full Text Available Understanding the nexus between energy and water - water used for energy and energy used for water - has become increasing important in a changing world. As growing populations demand more energy supplies and water resources, research aims to analyze the interconnectedness of these two resources. Our study sought to quantify the energy-water relationship in Texas, specifically the relationship between electricity generation and water resources as it pertains to policy and society. We examined the water requirements for various types of electricity generating facilities, for typical systems both nationwide and in Texas. We also addressed the energy requirements of water supply and wastewater treatment systems, comparing national averages with Texas-specific values. Analysis of available data for Texas reveals that approximately 595,000 megaliters of water annually - enough water for over three million people for a year - are consumed by cooling the state's thermoelectric power plants while generating approximately 400 terawatt-hours of electricity. At the same time, each year Texas uses an estimated 2.1 to 2.7 terawatt-hours of electricity for water systems and 1.8 to 2.0 terawatt-hours for wastewater systems - enough electricity for about 100,000 people for a year. In preparing our analysis, it became clear that substantially more site-specific data are necessary for a full understanding of the nature of the energy-water nexus and the sustainability of economic growth in Texas. We recommend that Texas increase efforts to collect accurate data on the withdrawal and consumption of cooling and process water at power plants, as well as data on electricity consumption for public water supply and wastewater treatment plants and distribution systems. The overarching conclusion of our work is that increased efficiency advances the sustainable use of both energy and water. Improving water efficiency will reduce power demand, and improving energy

  20. Creationism in the Grand Canyon, Texas Textbooks

    Science.gov (United States)

    Folger, Peter

    2004-01-01

    AGU President Bob Dickinson, together with presidents of six other scientific societies, have written to Joseph Alston, Superintendent of Grand Canyon National Park, pointing out that a creationist book, The Grand Canyon: A Different View, is being sold in bookstores within the borders of the park as a scientific explanation about Grand Canyon geologic history. President Dickinson's 16 December letter urges that Alston clearly separate The Grand Canyon: A Different View from books and materials that discuss the legitimate scientific understanding of the origin of the Grand Canyon. The letter warns the Park Service against giving the impression that it approves of the anti-science movement known as young-Earth creationism, or that it endorses the advancement of religious tenets disguised as science. The text of the letter is on AGU's Web site http://www.agu.org/sci_soc/policy/sci_pol.html. Also, this fall, AGU sent an alert to Texas members about efforts by intelligent design creationists aimed at weakening the teaching of biological evolution in textbooks used in Texas schools. The alert pointed scientists to a letter, drafted by AGU, together with the American Institute of Physics, the American Physical Society, the Optical Society of America, and the American Astronomical Society, that urged the Texas State Board of Education to adopt textbooks that presented only accepted, peer-reviewed science and pedagogical expertise. Over 550 scientists in Texas added their names to the letter (http://www.agu.org/sci_soc/policy/texas_textbooks.pdf ), sent to the Board of Education on 1 November prior to their vote to adopt a slate of new science textbooks. The Board voted 11-5 in favor of keeping the textbooks free of changes advocated by groups supporting intelligent design creationism.

  1. What the Joint Admission Medical Program (JAMP) can do for Texas physicians; what Texas physicians can do for JAMP.

    Science.gov (United States)

    Podawiltz, Alan; Richardson, James; Gleason, Wallace; Fallon, Kathleen; Jones, David; Peck, Elizabeth Kimberli; Rabek, Jeffrey; Schydlower, Manuel; Thomson, William; Warne, Russell T; Mabry, Budge; Hermesmeyer, Paul; Smith, Quentin W

    2012-08-01

    Texas faces health challenges requiring a physician workforce with understanding of a broad range of issues -- including the role of culture, income level, and health beliefs -- that affect the health of individuals and communities. Building on previous successful physician workforce "pipeline" efforts, Texas established the Joint Admission Medical Program (JAMP), a first-of-its-kind program to encourage access to medical education by Texans who are economically disadvantaged. The program benefits those from racial and ethnic minority groups and involves all 31 public and 34 private Texas undergraduate colleges and universities offering life science degrees, as well as all 9 medical schools. Available program data indicate that JAMP has broadened enrollment diversity in Texas' medical schools. However, greater progress requires strengthened partnerships with professional colleagues practicing medicine in communities across Texas. This article explores how JAMP can help Texas physicians and how Texas physicians can help JAMP.

  2. Concurrent Chemoradiotherapy in Locally Advanced Esophageal Cancer

    Energy Technology Data Exchange (ETDEWEB)

    Byun, Sang Jun; Kim, Jin Hee; Kim, Ok Bae; Song, Hong Suk [Dongsan Medical Center, School of Medicine, Keimyung University, Daegu (Korea, Republic of)

    2011-03-15

    This study was designed to evaluate the results of local control, survival rate, prognostic factors, and failure pattern in locally advanced esophageal cancer. We retrospectively studied 50 patients with locally advanced esophageal cancer treated with concurrent chemoradiotherapy at Keimyung University Dongsan Medical Center from June of 1999 to August of 2008. Seven patients with inappropriate data were excluded, and 43 patients were analyzed. There were 39 males and four female patients ranging in age from 43 to 78 years (median, 63 years). There were seven patients with stage IIA and 36 with stage III. Irradiation from 46 Gy to 63 Gy (median, 54 Gy) was carried out 5 days per week, 1.8 Gy once a day. There were eight patients with neo-adjuvant chemotherapy, and we mostly used 5-fluorouracil, cisplatin with 3 cycles for concurrent chemotherapy. The range of follow up periods was from 2 to 82 months (median, 15.5). There were nine patients that exhibited a complete response, 23 that exhibited a partial response, 9 that exhibited no response, and 2 that exhibited disease progression. The median survival time was 15 months. Two-year and 5-year survival rates were 36.5% and 17.3%, respectively. Two-year and 5-year disease-free survival rates were 32.4% and 16%, respectively. Treatment failure occurred in 22 patients (51.2%). Patterns of failure were categorized as local failure in 18 patients and distant metastasis in four patients. In a univariate analysis for prognostic factors related to overall survival and disease-free survival, the hemoglobin levels during chemoradiotherapy ({>=}12 vs. <12, p=0.02/p=0.1) and the response to the treatments (CR/PR vs. NR/PD, p=0.002/p <0.0001) were statistically significant. In a multivariate analysis, only response to the treatments was revealed to be statistically significant. There was no statistical significance associated with patient age, gender, disease stage, T-stage, smoking history, tumor location, or neo

  3. Capital offenders in Texas prisons: rates, correlates, and an actuarial analysis of violent misconduct.

    Science.gov (United States)

    Cunningham, Mark Douglas; Sorensen, Jon R

    2007-12-01

    This study analyzed the records of 136 recently incarcerated capital murder offenders in the initial phase (M = 2.37 years, range = 6-40 months) of their life sentences in the Texas Department of Criminal Justice. Prevalence rates of institutional violence were inversely related to severity: potentially violent misconduct (36.8%), assaultive violations (14%), serious assaults (5.1%), and homicides (0%). Consistent with prior studies, factors correlated with assaultive misconduct included age (inversely), prior prison confinement, and concurrent robbery or burglary in the capital offense. A simplified Burgess scale entitled the Risk Assessment Scale for Prison-Capital (RASP-Cap) was moderately successful in identifying varying levels of improbability of committing violence-related misconduct however defined (AUC = .715-.766).

  4. Human dental microwear caused by calcium oxalate phytoliths in prehistoric diet of the lower Pecos region, Texas.

    Science.gov (United States)

    Danielson, D R; Reinhard, K J

    1998-11-01

    Recent research demonstrates that silica phytoliths of dietary origin are associated with microwear of human teeth. Previous research has shown that severe enamel microwear and dental wear characterizes Archaic hunter-gatherers in the lower Pecos region of west Texas. Calcium oxalate crystals are especially common in Archaic coprolites. The vast majority are derived from prickly pear and agave, which were the dietary staples in west Texas for 6,000 years. The calcium oxalate phytoliths are harder than enamel. Therefore, calcium oxalate crystals are the most likely source of previously documented dental microwear and wear in the lower Pecos region.

  5. Metric pomset semantics for a concurrent language with recursion

    NARCIS (Netherlands)

    J.W. de Bakker (Jaco); J.H.A. Warmerdam

    1990-01-01

    textabstractWe study the semantics of a simple language with concurrency and recursion. Our semantic domain consists of (sets of) finite and infinite partially ordered multisets (pomsets) in order to model true concurrency (i.e. noninterleaved parallel execution). It will be shown that the set of

  6. 38 CFR 21.7673 - Measurement of concurrent enrollments.

    Science.gov (United States)

    2010-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Measurement of concurrent... Reserve Course Assessment § 21.7673 Measurement of concurrent enrollments. (a) Conversion of units of... reservist's training time. (Authority: 10 U.S.C. 16136(b); 38 U.S.C. 3688) (b) Conversion of clock hours to...

  7. 38 CFR 21.7172 - Measurement of concurrent enrollments.

    Science.gov (United States)

    2010-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Measurement of concurrent... (Montgomery GI Bill-Active Duty) Course Assessment § 21.7172 Measurement of concurrent enrollments. (a..., VA will convert the credit hours to clock hours to determine the veteran's training time. (Authority...

  8. A Model-Driven Approach to Teaching Concurrency

    Science.gov (United States)

    Carro, Manuel; Herranz, Angel; Marino, Julio

    2013-01-01

    We present an undergraduate course on concurrent programming where formal models are used in different stages of the learning process. The main practical difference with other approaches lies in the fact that the ability to develop correct concurrent software relies on a systematic transformation of formal models of inter-process interaction (so…

  9. Context-Based Synchronization of Concurrent Process Using Aspect ...

    African Journals Online (AJOL)

    2012-12-01

    Dec 1, 2012 ... Abstract. Resource access synchronization within concurrent processes or threads is implemented using various constructs such as semaphores, monitor locks, Mutex, etc. The algorithm supporting most of these structures works by keeping at bay all other concurrent processes or threads till the current ...

  10. Dynamic Frames Based Verification Method for Concurrent Java Programs

    NARCIS (Netherlands)

    Mostowski, Wojciech

    2016-01-01

    In this paper we discuss a verification method for concurrent Java programs based on the concept of dynamic frames. We build on our earlier work that proposes a new, symbolic permission system for concurrent reasoning and we provide the following new contributions. First, we describe our approach

  11. Concurrent Enrollment: Math. Issue Brief, No. 2017-1

    Science.gov (United States)

    Curtin, Joseph A.

    2017-01-01

    The question of course rigor is often raised in connection with Concurrent Enrollment courses when compared to their on-campus equivalents. Over one-third of all Utah high school juniors and seniors enroll in at least one concurrent enrollment course, courses in which students earn both high school credit for graduation and college credit…

  12. Concurrent implementation of quality improvement programs.

    Science.gov (United States)

    Nyström, Monica Elisabeth; Garvare, Rickard; Westerlund, Anna; Weinehall, Lars

    2014-01-01

    Competing activities and projects can interfere with implementing new knowledge and approaches. The purpose, therefore, was to investigate processes and impact related to implementing two concurrent quality initiatives in a Swedish hospital. These were a regionally initiated, system-wide organizational learning programme called the Dynamic and Viable Organization (DVO) and a national initiative on stopping healthcare-associated and hospital-acquired infections (SHAI). Both undertakings aspired to increase staff competence in systematic improvement approaches. Multiple methods were applied including surveys, observations, interviews, process diaries, documents and organizational measurements. Respondents were unit managers, change facilitators and improvement team members. Even though both initiatives shared the same improvement approach, there was no strong indication that they were strategically combined to benefit each other. The initiatives existed side by side with some coordination and some conflict. Despite absent management strategies to utilize the national SHAI initiative, positive developments in QI culture and communication were reported. The current study illustrates the inherent difficulties coordinating change initiatives, even in favourable circumstances. This article addresses the lesser studied but common situation of coinciding and competing projects in organizations.

  13. Creatine and Caffeine: Considerations for Concurrent Supplementation.

    Science.gov (United States)

    Trexler, Eric T; Smith-Ryan, Abbie E

    2015-12-01

    Nutritional supplementation is a common practice among athletes, with creatine and caffeine among the most commonly used ergogenic aids. Hundreds of studies have investigated the ergogenic potential of creatine supplementation, with consistent improvements in strength and power reported for exercise bouts of short duration (≤ 30 s) and high intensity. Caffeine has been shown to improve endurance exercise performance, but results are mixed in the context of strength and sprint performance. Further, there is conflicting evidence from studies comparing the ergogenic effects of coffee and caffeine anhydrous supplementation. Previous research has identified independent mechanisms by which creatine and caffeine may improve strength and sprint performance, leading to the formulation of multi-ingredient supplements containing both ingredients. Although scarce, research has suggested that caffeine ingestion may blunt the ergogenic effect of creatine. While a pharmacokinetic interaction is unlikely, authors have suggested that this effect may be explained by opposing effects on muscle relaxation time or gastrointestinal side effects from simultaneous consumption. The current review aims to evaluate the ergogenic potential of creatine and caffeine in the context of high-intensity exercise. Research directly comparing coffee and caffeine anhydrous is discussed, along with previous studies evaluating the concurrent supplementation of creatine and caffeine.

  14. Concurrent oxytocin in women needing second dinoprostone.

    Science.gov (United States)

    Sher, Zaiba; Ashraf, Mussaret; Irum, Nabila; Bashir, Shaheen; Khaliq, Nagina; Yaqub, Saima

    2015-05-01

    To reduce average induction delivery internal in patients with poor Bishop score without compromising fetomaternal outcome (in terms of birth weight, NICU admission, maternal complications and mode of delivery). A descriptive study. Department of Obstetrics and Gynaecology, Pakistan Atomic Energy Commission (PAEC) General Hospital, Islamabad, from February to December 2009. All patients needing 2nd dinoprostone pessary for induction of labour were included in the study. Patients with gestation below 37 weeks, those with intra-uterine growth restriction, bad obstetric history, previous uterine scar and patients in whom Bishop score improved for amniotomy after 1st dinoprostone pessary, were excluded. Data was collected on a special proforma where all variables were defined. Out of 90 patients, 44 (48.8%) had spontaneous vertex deliveries and 12 (13.3%) had instrumental deliveries so a total vaginal deliveries occurred in 56 (62.2%) patients. Thirty four patients (37.8%) had emergency caesarean sections. Main indication for cesarean was failure to progress in 1st stage of labour followed by fetal distress. There were 3 failed inductions. Only 2 patients had hyperstimulation. NICU admission were 8 and all babies were discharged healthy from nursery with no case of early neonatal death. Concurrent oxytocin with 2nd dinoprostone in patients with poor Bishop scores (initial scores 2 and 3) resulted in more vaginal birth and comparatively shorter induction delivery time with almost negligible fetomaternal complications.

  15. Evaluation of active mortality surveillance system data for monitoring hurricane-related deaths-Texas, 2008.

    Science.gov (United States)

    Choudhary, Ekta; Zane, David F; Beasley, Crystal; Jones, Russell; Rey, Araceli; Noe, Rebecca S; Martin, Colleen; Wolkin, Amy F; Bayleyegn, Tesfaye M

    2012-08-01

    The Texas Department of State Health Services (DSHS) implemented an active mortality surveillance system to enumerate and characterize hurricane-related deaths during Hurricane Ike in 2008. This surveillance system used established guidelines and case definitions to categorize deaths as directly, indirectly, and possibly related to Hurricane Ike. The objective of this study was to evaluate Texas DSHS' active mortality surveillance system using US Centers for Disease Control and Prevention's (CDC) surveillance system evaluation guidelines. Using CDC's Updated Guidelines for Surveillance System Evaluation, the active mortality surveillance system of the Texas DSHS was evaluated. Data from the active mortality surveillance system were compared with Texas vital statistics data for the same time period to estimate the completeness of reported disaster-related deaths. From September 8 through October 13, 2008, medical examiners (MEs) and Justices of the Peace (JPs) in 44 affected counties reported deaths daily by using a one-page, standardized mortality form. The active mortality surveillance system identified 74 hurricane-related deaths, whereas a review of vital statistics data revealed only four deaths that were hurricane-related. The average time of reporting a death by active mortality surveillance and vital statistics was 14 days and 16 days, respectively. Texas's active mortality surveillance system successfully identified hurricane-related deaths. Evaluation of the active mortality surveillance system suggested that it is necessary to collect detailed and representative mortality data during a hurricane because vital statistics do not capture sufficient information to identify whether deaths are hurricane-related. The results from this evaluation will help improve active mortality surveillance during hurricanes which, in turn, will enhance preparedness and response plans and identify public health interventions to reduce future hurricane-related mortality rates.

  16. Biogenic emissions modeling for Southeastern Texas

    Energy Technology Data Exchange (ETDEWEB)

    Estes, M.; Jacob, D.; Jarvie, J. [Texas Natural Resource Conservation Commission, Austin, TX (United States)] [and others

    1996-12-31

    The Texas Natural Resource Conservation Commission (TNRCC) modeling staff performed biogenic hydrocarbon emissions modeling in support of gridded photochemical modeling for ozone episodes in 1992 and 1993 for the Coastal Oxidant Assessment for Southeast Texas (COAST) modeling domain. This paper summarizes the results of the biogenic emissions modeling and compares preliminary photochemical modeling results to ambient air monitoring data collected during the 1993 COAST study. Biogenic emissions were estimated using BIOME, a gridded biogenic emissions model that uses region-specific land use and biomass density data, and plant species-specific emission factor data. Ambient air monitoring data were obtained by continuous automated gas chromatography at two sites, one-hour canister samples at 5 sites, and 24-hour canister samples at 13 other sites. The concentrations of Carbon Bond-IV species (as determined from urban airshed modeling) were compared to measured hydrocarbon concentrations. In this paper, we examined diurnal and seasonal variations, as well as spatial variations.

  17. Wind/solar resource in Texas

    Energy Technology Data Exchange (ETDEWEB)

    Nelson, V.; Starcher, K.; Gaines, H. [West Texas A& M Univ., Canyon, TX (United States)

    1997-12-31

    Data are being collected at 17 sites to delineate a baseline for the wind and solar resource across Texas. Wind data are being collected at 10, 25, and 40 m (in some cases at 50 m) to determine wind shear and power at hub heights of large turbines. Many of the sites are located in areas of predicted terrain enhancement. The typical day in a month for power and wind turbine output was calculated for selected sites and combination of sites; distributed systems. Major result to date is that there is the possibility of load matching in South Texas during the summer months, even though the average values by month indicate a low wind potential.

  18. Sediment Management Options for Galveston Island, Texas

    Science.gov (United States)

    2015-06-15

    Galveston Island is a major tourist and commercial center on the Gulf of Mexico at the mouth of Galveston Bay, Texas, USA. The shoreline along the...approximately 235°. The island is bordered by the Gulf of Mexico , the Galveston Entrance Channel to the northeast, West Bay to the northwest, and San...plants on both ends of the island are the best strategies to widen the beaches of Galveston Island, improve tourism , and better protect the island

  19. Austin Chalk trend, upper Gulf Coast, Texas

    Energy Technology Data Exchange (ETDEWEB)

    Holifield, R.

    1982-01-01

    The application of innovative geologic and geophysical interpretations and of carefully tailored well completion techniques has created the opportunity for profitable, low-risk drilling programs in the Austin Chalk Formation of S. Texas. This discussion focuses on selected information that should be beneficial for exploration and development activities in the Austin Chalk. The Giddings field is discussed in some detail, since this field is the center of the greatest activity in the Austin Chalk trend.

  20. The Energy-Water Nexus in Texas

    OpenAIRE

    Ashlynn S. Stillwell; Carey W. King; Michael E. Webber; Ian J. Duncan; Amy Hardberger

    2011-01-01

    Understanding the nexus between energy and water - water used for energy and energy used for water - has become increasing important in a changing world. As growing populations demand more energy supplies and water resources, research aims to analyze the interconnectedness of these two resources. Our study sought to quantify the energy-water relationship in Texas, specifically the relationship between electricity generation and water resources as it pertains to policy and society. We examined...

  1. Floods in central Texas, August 1978

    Science.gov (United States)

    Schroeder, E.E.; Massey, B.C.; Waddell, Kidd M.

    1979-01-01

    Catastrophic floods, which resulted in millions of dollars in property damages and the loss of 33 lives, occurred in Central Texas during August 1-4, 1978, as a result of intense rainfall produced by the remnants of tropical storm Amelia. Rainfall in excess of 30 inches was unofficially reported at several locations, while the highest 24-hour amount recorded by the National·Weather Service was 29.05 inches at Albany in Shackelford County.

  2. Redotex ingestions reported to Texas poison centers.

    Science.gov (United States)

    Forrester, Mathias B

    2010-09-01

    Although the multi-component weight loss supplement Redotex is banned in the United States, the supplement can be obtained in Mexico. The intent of this report was to describe the pattern of Redotex calls received by a statewide poison center system. Cases were all Redotex calls received by Texas poison centers during 2000-2008. The distribution of total calls and those involving ingestion of the supplement were determined for selected demographic and clinical factors. Of 34 total Redotex calls received, 55.9% came from the 14 Texas counties that border Mexico. Of the 22 reported Redotex ingestions, 77.3% of the patients were female and 45.5% 20 years or more. Of the 17 ingestions involving no co-ingestants, 52.9% were already at or en route to a health care facility, 41.2% were managed on site, and 5.9% was referred to a health care facility. The final medical outcome was no effect in 23.5% cases, minor effect in 5.9%, moderate effect in 11.8%, not followed but minimal clinical effects possible in 47.1%, and unable to follow but judged to be potentially toxic in 11.8%. Most Redotex calls to the Texas poison center system originated from counties bordering Mexico.

  3. Preliminary assessment report for Fort Jacob F. Wolters, Installation 48555, Mineral Wells, Texas. Installation Restoration Program

    Energy Technology Data Exchange (ETDEWEB)

    Dennis, C.B.

    1993-08-01

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

  4. Preliminary assessment report for Camp Swift Military Reservation, Installation 48070, Bastrop County, Texas. Installation Restoration Program

    Energy Technology Data Exchange (ETDEWEB)

    Dennis, C.B.

    1993-08-01

    This report presents the results of the preliminary assessment (PA) conducted by Argonne National Laboratory at the Texas Army National Guard property in Bastrop County, Texas. Preliminary assessments of federal facilities are being conducted to compile the information necessary for completing preremedial activities and to provide a basis for establishing corrective actions in response to releases of hazardous substances. The principal objective of the PA is to characterize the site accurately and determine the need for further action by examining site activities, quantities of hazardous substances present, and potential pathways by which contamination could affect public health and the environment. This PA satisfies, for the Camp Swift property, the requirement of the Department of Defense Installation Restoration Program (IRP). The review of both historical and current practices at the property indicated that the activities at Camp Swift include no operations considered to have an adverse impact to the environment. The recommendation, therefore, is that no further IRP action is necessary at this property.

  5. Recoverable Resource Estimate of Identified Onshore Geopressured Geothermal Energy in Texas and Louisiana (Presentation)

    Energy Technology Data Exchange (ETDEWEB)

    Esposito, A.; Augustine, C.

    2012-04-01

    Geopressured geothermal reservoirs are characterized by high temperatures and high pressures with correspondingly large quantities of dissolved methane. Due to these characteristics, the reservoirs provide two sources of energy: chemical energy from the recovered methane, and thermal energy from the recovered fluid at temperatures high enough to operate a binary power plant for electricity production. Formations with the greatest potential for recoverable energy are located in the gulf coastal region of Texas and Louisiana where significantly overpressured and hot formations are abundant. This study estimates the total recoverable onshore geopressured geothermal resource for identified sites in Texas and Louisiana. In this study a geopressured geothermal resource is defined as a brine reservoir with fluid temperature greater than 212 degrees F and a pressure gradient greater than 0.7 psi/ft.

  6. Commercial Space Port Planning in Texas

    Science.gov (United States)

    Bell, L.; Looke, B.

    2002-01-01

    The Texas Legislature is providing funding to support research and planning activities aimed at creating a commercial spaceport in the state. These monies have been allocated to regional Spaceport Development Corporations that have been established in three countries containing candidate site locations: Willacy County (in South Texas); Brazoria County (East Texas); and Pecos County (West Texas). This program is being sponsored and coordinated by the Texas Aerospace Commission (TAC). The Sasakawa International Center for Space Architecture (SICSA) at the University of Houston is providing research, planning and design support to TAC and is a member of each of the three regional development teams. Planning must carefully consider special support requirements and operational characteristics of all prospective launch systems along with geographic, infrastructure and environmental factors at each site. Two of the candidate sites are in coastal areas; a priority for certain launch service providers; whereas the third inland site is more attractive to others. Candidate launch systems include winged horizontal takeoff air-launch vehicles, vertical multi-stage reusable launch vehicles, and expendable sub-orbital surrounding rockets. Important research and planning activities include environmental impact assessments, analyses of overflight hazards, investigations of economic impacts and business plan development. The results of these activities will guide master plan development for each site, including: a physical plan (site layout, infrastructure improvements and facility construction); and a strategic plan (user agreements, licenses, finance sources and participants). Commercial spaceport development demands compliance with stringent FAA regulations established by the Office of Commercial Space Transportation (OCST) which exceed minimum standards allowed for U.S. Government spaceport facilities. Key among these requirements are 15,000 ft. radius on-site clear zones

  7. Context Aware Concurrent Execution Framework for Web Browsers

    DEFF Research Database (Denmark)

    Saeed, Aamir; Erbad, Aiman; Olsen, Rasmus Løvenstein

    2016-01-01

    Computing hungry multimedia web applications need to efficiently utilize all the resources of a device. HTML5 web workers is a non-sharing concurrency platform that enables multimedia web application to utilize the available multicore hardware. HTML5 web workers are implemented by major browser...... vendors to facilitate concurrent execution in web clients and enhance the quality of ambitious web applications. The concurrent execution in web workers allows parallel processing using available cores at the expense of communication overhead and extra computation. The benefits of concurrent execution can...... be maximized by balancing load across workers/CPU cores. This work presents load-balancing algorithms between web workers using parameters such as scheduler throughput, computation priority and game entities locality. An award-winning web-based multimedia game (raptjs.com) is used to evaluate the performance...

  8. Context Aware Concurrent Execution Framework for Web Browser

    DEFF Research Database (Denmark)

    Saeed, Aamir; Erbad, Aiman Mahmood; Olsen, Rasmus Løvenstein

    Computing hungry multimedia web applications need to efficiently utilize the device resources. HTML5 web workers is a non-sharing concurrency platform that enables multimedia web application to utilize the available multi-core hardware. HTML5 web workers are implemented by major browser vendors...... to facilitate concurrent execution in web clients and enhance the quality of ambitious web applications. The concurrent execution in web workers allows parallel processing using available cores at the expense of communication overhead and extra computation. The benefits of concurrent execution can be maximized...... by balancing load across workers/CPU cores. This work presents load-balancing algorithms between web workers using parameters such as scheduler throughput, computation priority and game entity locality. An award-winning web-based multimedia game (raptjs.com) is used to test the performance of the load balance...

  9. Love, lust and the emotional context of multiple and concurrent ...

    African Journals Online (AJOL)

    Love, lust and the emotional context of multiple and concurrent sexual partnerships among young Swazi adults. Allison Ruark, Lunga Dlamini, Nonhlanhla Mazibuko, Edward C Green, Caitlin Kennedy, Amy Nunn, Timothy Flanigan, Pamela J Surkan ...

  10. Service-Oriented Synthesis of Distributed and Concurrent Protocol Specifications

    Directory of Open Access Journals (Sweden)

    Jehad Al Dallal

    2008-01-01

    Full Text Available Several methods have been proposed for synthesizing computer communication protocol specifications from service specifications. Some protocol synthesis methods based on the finite state machine (FSM model assume that primitives in the service specifications cannot be executed simultaneously. Others either handle only controlled primitive concurrency or have tight restrictions on the applicable FSM topologies. As a result, these synthesis methods are not applicable to an interesting variety of inherently concurrent applications, such as the Internet and mobile communication systems. This paper proposes a concurrent-based protocol synthesis method that eliminates the restrictions imposed by the earlier methods. The proposed method uses a synthesis method to obtain a sequential protocol specification (P-SPEC from a given service specification (S-SPEC. The resulting P-SPEC is then remodeled to consider the concurrency behavior specified in the S-SPEC, while guaranteeing that P-SPEC provides the specified service.

  11. Partial Orders and Fully Abstract Models for Concurrency

    DEFF Research Database (Denmark)

    Engberg, Uffe Henrik

    1990-01-01

    In this thesis sets of labelled partial orders are employed as fundamental mathematical entities for modelling nondeterministic and concurrent processes thereby obtaining so-called noninterleaving semantics. Based on different closures of sets of labelled partial orders, simple algebraic languages...

  12. A case of coats disease and concurrent anisometropic amblyopia

    Directory of Open Access Journals (Sweden)

    Nathan G. Lambert

    2016-12-01

    Conclusions and importance: This case demonstrates the importance of detecting and correcting for concurrent amblyopia in pediatric retina conditions that may, on fundus examination alone, appear to have a retinal cause for reduced visual acuity.

  13. Prototyping of concurrent control systems implemented in FPGA devices

    CERN Document Server

    Wiśniewski, Remigiusz

    2017-01-01

    This book focuses on prototyping aspects of concurrent control systems and their further implementation and partial reconfiguration in programmable devices. Further, it lays out a full prototyping flow for concurrent control systems. Based on a given primary specification, a system is described with an interpreted Petri net, which naturally reflects the concurrent and sequential relationships of the design. The book shows that, apart from the traditional option of static configuration of the entire system, the latest programmable devices (especially FPGAs) offer far more sophistication. Partial reconfiguration allows selected parts of the system to be replaced without having to reprogram the entire structure of the device. Approaches to dynamic and static partial reconfiguration of concurrent control systems are presented and described in detail.< The theoretical work is illustrated by examples drawn from various applications, with a milling machine and a traffic-light controller highlighted as representat...

  14. Classes of oppositional-defiant behavior: Concurrent and predictive validity

    NARCIS (Netherlands)

    R.R. Althoff (Robert); A.V. Kuny-Slock (Ana); F.C. Verhulst (Frank); J.J. Hudziak (James); J. van der Ende (Jan)

    2014-01-01

    textabstractBackground: Oppositional defiant disorder (ODD) has components of both irritability and defiance. It remains unclear whether children with variation in these domains have different adult outcomes. This study examined the concurrent and predictive validity of classes of oppositional

  15. Visualizing Concurrency Control Algorithms for Real-Time Database Systems

    Directory of Open Access Journals (Sweden)

    Olusegun Folorunso

    2008-11-01

    Full Text Available This paper describes an approach to visualizing concurrency control (CC algorithms for real-time database systems (RTDBs. This approach is based on the principle of software visualization, which has been applied in related fields. The Model-View-controller (MVC architecture is used to alleviate the black box syndrome associated with the study of algorithm behaviour for RTDBs Concurrency Controls. We propose a Visualization "exploratory" tool that assists the RTDBS designer in understanding the actual behaviour of the concurrency control algorithms of choice and also in evaluating the performance quality of the algorithm. We demonstrate the feasibility of our approach using an optimistic concurrency control model as our case study. The developed tool substantiates the earlier simulation-based performance studies by exposing spikes at some points when visualized dynamically that are not observed using usual static graphs. Eventually this tool helps solve the problem of contradictory assumptions of CC in RTDBs.

  16. Development of a debugger for a concurrent language

    Energy Technology Data Exchange (ETDEWEB)

    Baiardi, F.; DeFrancesco, N.; Vaglini, G.

    1986-04-01

    This work deals with some issues concerned in the debugging of concurrent programs. A set of desirable characteristics for a debugger for concurrent languages is deduced from a review of the differences between the debugging of concurrent programs and that of sequential ones. A debugger for a concurrent language, based upon CSP, is then described. The debugger makes it possible to compare a description of the expected program behavior to the actual behavior. The description of the behavior is given in terms of expressions composed by events and/or assertions on the process state. The developed formalism is able to describe behaviors at various levels of abstraction. Lastly, some guidelines for the implementation of the debugger are given and a detailed example of program debugging is analyzed.

  17. A Comparative Study of Single Helminths and Concurrent Helminths ...

    African Journals Online (AJOL)

    The larvae isolated from those concurrently infected were mainly Haemonchus contortus, Trichostrongylus colubrioformis, Oesophagostamum columbianum, Cooperia sp and Strongyloides pappilosus while those singly infected harboured mainly Haemonchus contortus, Trichostrongylus colubrioformis and Strongyloides ...

  18. A case for evaluating sensor network protocols concurrently

    KAUST Repository

    Gnawali, Omprakash

    2010-01-01

    Researchers typically evaluate and compare protocols on the testbeds by running them one at a time. This methodology ignores the variation in link qualities and wireless environment across these experiments. These variations can introduce significant noise in the results. Evaluating two protocols concurrently, however, suffers from inter-protocol interactions. These interactions can perturb performance even under very light load, especially timing and timing sensitive protocols. We argue that the benefits of running protocols concurrently greatly outweigh the disadvantages. Protocols rarely run in isolation in real networks, and so considering such interactions is valuable. Although the wireless environment is still uncontrolled, concurrent evaluations make comparisons fair and more statistically sound. Through experiments on two testbeds, we make the case for evaluating and comparing low data-rate sensor network protocols by running them concurrently. Copyright 2010 ACM.

  19. Concurrency-Induced Transitions in Epidemic Dynamics on Temporal Networks

    Science.gov (United States)

    Onaga, Tomokatsu; Gleeson, James P.; Masuda, Naoki

    2017-09-01

    Social contact networks underlying epidemic processes in humans and animals are highly dynamic. The spreading of infections on such temporal networks can differ dramatically from spreading on static networks. We theoretically investigate the effects of concurrency, the number of neighbors that a node has at a given time point, on the epidemic threshold in the stochastic susceptible-infected-susceptible dynamics on temporal network models. We show that network dynamics can suppress epidemics (i.e., yield a higher epidemic threshold) when the node's concurrency is low, but can also enhance epidemics when the concurrency is high. We analytically determine different phases of this concurrency-induced transition, and confirm our results with numerical simulations.

  20. Site study plan for Transportation, Deaf Smith County Site, Texas: Preliminary draft

    Energy Technology Data Exchange (ETDEWEB)

    1987-06-01

    This site study plan describes transportation field studies to be conducted during the characterization of the Deaf Smith County, Texas, site for the US Department of Energy's Salt Repository Project. The studies are needed to identify and assess potential project impacts to transportation infrastructure and systems in the project vicinity and along potential transportation routes to the site across the State of Texas. The studies are also needed to locate and design project transportation facilities, and to evaluate and design impact mitigation. After identifying the transportation information requirements needed to comply with Federal, State, and local regulations and repository program requirements, the site study plan describes the study design and rationale, the field data collection procedures and equipment, the data analysis methods and application of results, the data management strategy, the schedule of field activities, the management of the study, and the study's quality assurance program. The field data collection activities are organized into programs for the characterization of site vicinity rail corridors and highway corridors, characterization of alternative statewide transportation routes, monitoring of site characterization effects on transportation, characterization of aircraft overflight patterns and hazardous material transportation patterns, and assessment of emergency response preparedness along alternative statewide transportation routes. 34 refs., 10 figs., 2 tabs.

  1. Education Outreach Associated with Technology Transfer in a Colonia of South Texas: Green Valley Farms Science and Space Club for Middle School Aged Children in Green Valley Farms, San Benito, Texas

    Science.gov (United States)

    Potess, Marla D.; Rainwater, Ken; Muirhead, Dean

    2004-01-01

    Texas colonias are unincorporated subdivisions characterized by inadequate water and wastewater infrastructure, inadequate drainage and road infrastructure, substandard housing, and poverty. Since 1989 the Texas Legislature has implemented policies to halt further development of colonias and to address water and wastewater infrastructure needs in existing and new colonias along the border with Mexico. Government programs and non-government and private organization projects aim to address these infrastructure needs. Texas Tech University's Water Resources Center demonstrated the use of alternative on-site wastewater treatment in the Green Valley Farms colonia, San Benito, Texas. The work in Green Valley Farms was a component of a NASA-funded project entitled Evaluation of NASA's Advanced Life Support Integrated Water Recovery System for Non-Optimal Conditions and Terrestrial Applications. Two households within the colonia are demonstration sites for constructed wetlands. A colonia resident and activist identified educational opportunities for colonia children as a primary goal for many colonia residents. Colonia parents view education as the door to opportunity and escape from poverty for their children. The educational outreach component of the project in Green Valley Farms was a Science and Space Club for middle-school age students. Involved parents, schoolteachers, and school administrators enthusiastically supported the monthly club meetings and activities. Each month, students participated in interactive learning experiences about water use and reuse in space and on earth. Activities increased knowledge and interest in water resource issues and in science and engineering fields. The Institute for the Development and Enrichment of Advanced Learners (IDEAL) at Texas Tech University provided full scholarships for five students from Green Valley Farms to attend the Shake Hands With Your Future camp at Texas Tech University in June 2003. The educational outreach

  2. A lower bound of concurrence for multipartite quantum systems

    Science.gov (United States)

    Zhu, Xue-Na; Li, Ming; Fei, Shao-Ming

    2018-02-01

    We present a lower bound of concurrence for four-partite systems in terms of the concurrence for M (2≤ M≤ 3) part quantum systems and give an analytical lower bound for 2⊗ 2⊗ 2⊗ 2 mixed quantum sates. It is shown that these lower bounds are able to improve the existing bounds and detect entanglement better. Furthermore, our approach can be generalized to multipartite quantum systems.

  3. Gaseous Oxidized Mercury Dry Deposition Measurements in the Southwestern USA: A Comparison between Texas, Eastern Oklahoma, and the Four Corners Area

    Directory of Open Access Journals (Sweden)

    Mark E. Sather

    2014-01-01

    Full Text Available Gaseous oxidized mercury (GOM dry deposition measurements using aerodynamic surrogate surface passive samplers were collected in central and eastern Texas and eastern Oklahoma, from September 2011 to September 2012. The purpose of this study was to provide an initial characterization of the magnitude and spatial extent of ambient GOM dry deposition in central and eastern Texas for a 12-month period which contained statistically average annual results for precipitation totals, temperature, and wind speed. The research objective was to investigate GOM dry deposition in areas of Texas impacted by emissions from coal-fired utility boilers and compare it with GOM dry deposition measurements previously observed in eastern Oklahoma and the Four Corners area. Annual GOM dry deposition rate estimates were relatively low in Texas, ranging from 0.1 to 0.3 ng/m2h at the four Texas monitoring sites, similar to the 0.2 ng/m2h annual GOM dry deposition rate estimate recorded at the eastern Oklahoma monitoring site. The Texas and eastern Oklahoma annual GOM dry deposition rate estimates were at least four times lower than the highest annual GOM dry deposition rate estimate previously measured in the more arid bordering western states of New Mexico and Colorado in the Four Corners area.

  4. Neural Representation of Concurrent Vowels in Macaque Primary Auditory Cortex.

    Science.gov (United States)

    Fishman, Yonatan I; Micheyl, Christophe; Steinschneider, Mitchell

    2016-01-01

    Successful speech perception in real-world environments requires that the auditory system segregate competing voices that overlap in frequency and time into separate streams. Vowels are major constituents of speech and are comprised of frequencies (harmonics) that are integer multiples of a common fundamental frequency (F0). The pitch and identity of a vowel are determined by its F0 and spectral envelope (formant structure), respectively. When two spectrally overlapping vowels differing in F0 are presented concurrently, they can be readily perceived as two separate "auditory objects" with pitches at their respective F0s. A difference in pitch between two simultaneous vowels provides a powerful cue for their segregation, which in turn, facilitates their individual identification. The neural mechanisms underlying the segregation of concurrent vowels based on pitch differences are poorly understood. Here, we examine neural population responses in macaque primary auditory cortex (A1) to single and double concurrent vowels (/a/ and /i/) that differ in F0 such that they are heard as two separate auditory objects with distinct pitches. We find that neural population responses in A1 can resolve, via a rate-place code, lower harmonics of both single and double concurrent vowels. Furthermore, we show that the formant structures, and hence the identities, of single vowels can be reliably recovered from the neural representation of double concurrent vowels. We conclude that A1 contains sufficient spectral information to enable concurrent vowel segregation and identification by downstream cortical areas.

  5. The impact of the New Panama Canal Locks on Texas ports and the Texas economy.

    Science.gov (United States)

    2017-10-01

    This report examines the first year transits through the new Panama Canal locks and its impact on Texas deep water ports. It finds that the canal is operating efficiently and can accommodate 14,000 TEU containerships and bulk vessels up to 125,000 to...

  6. Texas School Dropout Survey: A Report to the 69th Legislature, State of Texas.

    Science.gov (United States)

    Texas State Dept. of Community Affairs, Austin. Training and Employment Development Div.

    As a response to legislative demands, the Texas School Dropout Survey described in this document attempted to identify the magnitude of the dropout problem, regional characteristics or causes of the problem, costs associated with dropping out, and programs currently available for serving the dropout population. Twenty-four major findings of the…

  7. 78 FR 8960 - Texas (Splenetic) Fever in Cattle

    Science.gov (United States)

    2013-02-07

    ... Animal and Plant Health Inspection Service 9 CFR Part 72 Texas (Splenetic) Fever in Cattle AGENCY: Animal and Plant Health Inspection Service, USDA. ACTION: Final rule. SUMMARY: We are amending the Texas... capable of transmitting microscopic parasites (Babesia) that cause bovine babesiosis. We are amending the...

  8. Facts about Texas Children. Excerpted from Children, Choice, and Change.

    Science.gov (United States)

    Harris, Lorwen Connie

    The environment in which Texas children grow up is crucial to their future and to the future of the state. Almost 500,000 Texas families were poor in 1985. Poverty sets the stage for numerous childhood maladies: infant mortality, health problems, child abuse, learning disabilities, malnutrition, and mental health problems. As poor children grow up…

  9. Labor Productivity Standards in Texas School Foodservice Operations

    Science.gov (United States)

    Sherrin, A. Rachelle; Bednar, Carolyn; Kwon, Junehee

    2009-01-01

    Purpose: Purpose of this research was to investigate utilization of labor productivity standards and variables that affect productivity in Texas school foodservice operations. Methods: A questionnaire was developed, validated, and pilot tested, then mailed to 200 randomly selected Texas school foodservice directors. Descriptive statistics for…

  10. Regulating Abortion: Impact on Patients and Providers in Texas

    Science.gov (United States)

    Colman, Silvie; Joyce, Ted

    2011-01-01

    The State of Texas began enforcement of the Woman's Right to Know (WRTK) Act on January 1, 2004. The law requires that all abortions at or after 16 weeks' gestation be performed in an ambulatory surgical center (ASC). In the month the law went into effect, not one of Texas's 54 nonhospital abortion providers met the requirements of a surgical…

  11. Texas Future Farmers of America Poultry Judging Handbook. Revised.

    Science.gov (United States)

    Bradley, J. W.; And Others

    This handbook is designed to help students in Texas prepare for Future Farmers of America (FFA) poultry judgings. The handbook is organized into five major sections that cover the following topics: organization of the Texas FFA poultry judging contest; judging production hens; judging production pullets; grading ready-to-cook broilers, fryers, or…

  12. 27 CFR 9.144 - Texas High Plains.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Texas High Plains. 9.144 Section 9.144 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT... Mexico; Texas” 1954, revised 1973. (2) “Brownfield, Texas; New Mexico” 1954, revised 1973. (3) “Hobbs...

  13. Population trends of red-cockaded woodpeckers in Texas

    Science.gov (United States)

    Richard N. Conner; Daniel Saenz; D. Craig Rudolph

    2006-01-01

    tracked population trends of Red-cockaded Woodpeckers (Picoides borealis) in eastern Texas from 1983 through 2004. After declining precipitously during the 1980s, woodpecker population trends on federal lands (National Forests and Grasslands in Texas, but excluding the Big Thicket National Preserve) increased between 1990 and 2000, and have been...

  14. A Model for Health Professional Education in South Texas

    Science.gov (United States)

    Ramirez, Amelie; Vela, Leonel; Cigarroa, Francisco G.

    2008-01-01

    In 1997, The University of Texas Health Science Center at San Antonio established the Regional Academic Health Center (RAHC) for the Lower Rio Grande Valley in south Texas. Through medical education programs, research facilities, and partnerships with health-care providers, the RAHC aims to improve the health status and access to health services…

  15. Instructional Technology Practices in Developmental Education in Texas

    Science.gov (United States)

    Martirosyan, Nara M.; Kennon, J. Lindsey; Saxon, D. Patrick; Edmonson, Stacey L.; Skidmore, Susan T.

    2017-01-01

    The purpose of this study was to examine the current state of technology integration in developmental education in Texas higher education. Analyzing survey data from developmental education faculty members in 70 2- and 4-year colleges in Texas, researchers identified instructor-reported best instructional technology practices in developmental…

  16. Developing and Planning a Texas Based Homeschool Curriculum

    Science.gov (United States)

    Terry, Bobby K.

    2011-01-01

    Texas has some of the lowest SAT scores in the nation. They are ranked 36th nationwide in graduation rates and teacher salaries rank at number 33. The public school system in Texas has problems with overcrowding, violence, and poor performance on standardized testing. Currently 300,000 families have opted out of the public school system in order…

  17. Kratom exposures reported to Texas poison centers.

    Science.gov (United States)

    Forrester, Mathias B

    2013-01-01

    Kratom use is a growing problem in the United States. Kratom exposures reported to Texas poison centers between January 1998 and September 2013 were identified. No kratom exposures were reported from 1998 to 2008 and 14 exposures were reported from 2009 to September 2013. Eleven patients were male, and 11 patients were in their 20s. The kratom was ingested in 12 patients, inhaled in 1, and both ingested and inhaled in 1. Twelve patients were managed at a healthcare facility and the remaining 2 were managed at home.

  18. Lake Aquilla - Habitat Survey Hill County, Texas

    Science.gov (United States)

    2017-08-01

    the nest, which is typically situated about one meter from the ground (Grzybowski 1995). These shrublands are a product of climate in the arid ...Lake Aquilla, Texas. Plot LA22 was located near N 31.99525° W 97.1425° in a low, poorly drained area that is semi -permanently flooded, only... Climate Center website ERDC/EL TR-17-16 57 (http://www.wcc.nrcs.usda.gov/ climate /wetlands.html) or the Web- based, Water-Budget, Interactive

  19. État de la concurrence et régime de concurrence de l'Éthiopie ...

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

    L'Éthiopie réalise des progrès en ce qui concerne la gestion de l'économie de marché. Toutefois, la concurrence demeure faible, malgré la révision de la loi sur la concurrence. La plupart des entreprises de petite et de grande taille sont habituées à recevoir un soutien de la part de l'État. Elles éprouvent donc maintenant ...

  20. UMTRA project water sampling and analysis plan, Falls City, Texas. Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-09-01

    Planned, routine ground water sampling activities at the US Department of Energy (DOE) Uranium Mill Tailings Remedial Action (UMTRA) Project site near Falls City, Texas, are described in this water sampling and analysis plan (WSAP). The following plan identifies and justifies the sampling locations, analytical parameters, and sampling frequency for the routine monitoring stations at the site. The ground water data are used for site characterization and risk assessment. The regulatory basis for routine ground water monitoring at UMTRA Project sites is derived from the US Environmental Protection Agency (EPA) regulations in 40 CFR Part 192. Sampling procedures are guided by the UMTRA Project standard operating procedures (SOP) (JEG, n.d.), the Technical Approach Document (TAD) (DOE, 1989), and the most effective technical approach for the site. The Falls City site is in Karnes County, Texas, approximately 8 miles [13 kilometers southwest of the town of Falls City and 46 mi (74 km) southeast of San Antonio, Texas. Before surface remedial action, the tailings site consisted of two parcels. Parcel A consisted of the mill site, one mill building, five tailings piles, and one tailings pond south of Farm-to-Market (FM) Road 1344 and west of FM 791. A sixth tailings pile designated Parcel B was north of FM 791 and east of FM 1344.

  1. Differences in Soil Moisture Dynamics across Landforms in South Texas Shrublands

    Science.gov (United States)

    Basant, S.; Wilcox, B. P.

    2016-12-01

    To understand the water budget for a landscape, it is important to understand the hydrologic differences between different landforms constituting the landscape. The Tamaulipas Biotic Province shrublands in South Texas are characterized by primarily three different landforms - the sandy loam uplands, clay loam intermittent drainage woodlands and closed basin depressions situated in intermittent drainage ways, also referred to as `playas'. Texas A&M's La Copita Research Area (LCRA) in South Texas is a similar landscape where previous research has been limited to soil water movement in uplands and localized water accumulation in the playa landforms. The objective of this research is to understand the hydrology of different landforms and integrate them to complete a landscape scale water budget. Deep soil water movement will be measured at LCRA using neutron moisture gauges. Over 50 access tubes distributed around the site will be used to cover the dominant landforms and vegetation classes. Soil moisture will be measured up to a depth of 2m at different times of the year - so as to capture the variability in response to different rain events and also to different seasons. This will be complimented by over 6 years of run off data collected from controlled plots which will provide an estimate on the amount of overland water exchange from uplands to drainage and playas. The depth-wise soil moisture data collected over time will also be used to estimate the variability in plant water uptake rates across different sites.

  2. Neonatal diabetes mellitus and congenital diaphragmatic hernia: coincidence or concurrent etiology?

    Directory of Open Access Journals (Sweden)

    Topiol Emmanuelle S

    2012-07-01

    Full Text Available Abstract Neonatal diabetes mellitus (NDM is a rare metabolic disorder, affecting approximately 1 in 500,000 live births. The management of NDM is challenging, as the benefits of controlling hyperglycemia must be balanced with the risks of iatrogenic hypoglycemia. NDM occurs in both permanent and transient forms, which have been genetically and phenotypically well characterized. Herein, we present the previously unreported combination of transient NDM (TNDM and congenital diaphragmatic hernia (CDH. In addition to reviewing the management and genetics of NDM we discuss the potential for overlapping genetic or embryologic abnormalities to explain the concurrence of CDH and NDM.

  3. Concurrent heroin use among methadone maintenance clients in China.

    Science.gov (United States)

    Li, Li; Lin, Chunqing; Wan, Dai; Zhang, Linglin; Lai, Wenhong

    2012-03-01

    The study examined concurrent illicit heroin use among methadone maintenance clients in China and its association with clients' demographic characteristics, treatment experience, and personal social network. Face-to-face surveys were conducted with 178 clients randomly recruited from six methadone maintenance treatment (MMT) clinics in Sichuan, China. Concurrent heroin use was measured based on self-report of heroin use during the past 30 days and a confirmatory urine morphine test. The participants' demographic characteristics and treatment factors were measured and examined. The drug use status of their family members and friends was also assessed. A total of 80 participants (44.9%) who either reported illicit heroin use in the past 30 days or had a positive urine test were defined as using heroin concurrently. Having drug-using friends was significantly associated with increased concurrent heroin use. Longer length of treatment (2 years or longer) was associated with increased concurrent heroin use. Among those who had both drug-using family members and friends, more women (71.4%) than men (50.0%) used heroin. For those who had no drug-using family members or friends, more men (34.8%) than women (20.8%) used heroin. Study findings indicate an urgent need to address concurrent illicit heroin use among MMT clients. Further examination of the influence of social networks on concurrent drug abuse behavior is encouraged. Results also highlight the importance of understanding gender differences in treatment seeking and behavioral changes, which is crucial to the development of gender-specific treatment strategies. Copyright © 2011 Elsevier Ltd. All rights reserved.

  4. Prediction of concurrent endometrial carcinoma in women with endometrial hyperplasia.

    Science.gov (United States)

    Matsuo, Koji; Ramzan, Amin A; Gualtieri, Marc R; Mhawech-Fauceglia, Paulette; Machida, Hiroko; Moeini, Aida; Dancz, Christina E; Ueda, Yutaka; Roman, Lynda D

    2015-11-01

    Although a fraction of endometrial hyperplasia cases have concurrent endometrial carcinoma, patient characteristics associated with concurrent malignancy are not well described. The aim of our study was to identify predictive clinico-pathologic factors for concurrent endometrial carcinoma among patients with endometrial hyperplasia. A case-control study was conducted to compare endometrial hyperplasia in both preoperative endometrial biopsy and hysterectomy specimens (n=168) and endometrial carcinoma in hysterectomy specimen but endometrial hyperplasia in preoperative endometrial biopsy (n=43). Clinico-pathologic factors were examined to identify independent risk factors of concurrent endometrial carcinoma in a multivariate logistic regression model. The most common histologic subtype in preoperative endometrial biopsy was complex hyperplasia with atypia [CAH] (n=129) followed by complex hyperplasia without atypia (n=58) and simple hyperplasia with or without atypia (n=24). The majority of endometrial carcinomas were grade 1 (86.0%) and stage I (83.7%). In multivariate analysis, age 40-59 (odds ratio [OR] 3.07, p=0.021), age≥60 (OR 6.65, p=0.005), BMI≥35kg/m(2) (OR 2.32, p=0.029), diabetes mellitus (OR 2.51, p=0.019), and CAH (OR 9.01, p=0.042) were independent predictors of concurrent endometrial carcinoma. The risk of concurrent endometrial carcinoma rose dramatically with increasing number of risk factors identified in multivariate model (none 0%, 1 risk factor 7.0%, 2 risk factors 17.6%, 3 risk factors 35.8%, and 4 risk factors 45.5%, pendometrial cancer in those with ≥3 risk factors. Older age, obesity, diabetes mellitus, and CAH are predictive of concurrent endometrial carcinoma in endometrial hyperplasia patients. Copyright © 2015 Elsevier Inc. All rights reserved.

  5. Classes of Oppositional-Defiant behaviour: Concurrent and predictive validity

    Science.gov (United States)

    Althoff, Robert R.; Kuny-Slock, Ana V.; Verhulst, Frank C.; Hudziak, James J.; van der Ende, Jan

    2014-01-01

    Background Oppositional Defiant Disorder (ODD) has components of both irritability and defiance. It remains unclear whether children with variation in these domains have different adult outcomes. This study examined the concurrent and predictive validity of classes of oppositional defiant behavior. Methods Latent Class Analysis was performed on the Oppositional Defiant Problems scale of the Child Behavior Checklist in two samples, one in the U.S. (the Achenbach Normative Sample, N=2029) and one in The Netherlands (the Zuid-Holland Study, N=2076). A third sample of American children (The Vermont Family Study, N=399) was examined to determine concurrent validity with DSM diagnoses. Predictive validity over 14 years was assessed using the Zuid-Holland Study. Results 4 classes of oppositional defiant problems were consistent in the two latent class analyses: No Symptoms, All Symptoms, Irritable, and Defiant. Individuals in the No Symptoms Class were rarely diagnosed concurrently with ODD or any future disorder. Individuals in the All Symptoms Class had an increased frequency of concurrent childhood diagnosis of ODD and of violence in adulthood. Subjects in the Irritable Class had low concurrent diagnosis of ODD, but increased odds of adult mood disorders. Individuals in the Defiant Class had low concurrent diagnosis of ODD, but had increased odds of violence as adults. Conclusions Only children in the All Symptoms class were likely to have a concurrent diagnosis of ODD. Although not diagnosed with ODD, children in the Irritable Class were more likely to have adult mood disorders and children in the Defiant Class were more likely to engage in violent behavior. PMID:24673629

  6. Unsustainable Home Telehealth: A Texas Qualitative Study.

    Science.gov (United States)

    Radhakrishnan, Kavita; Xie, Bo; Jacelon, Cynthia S

    2016-10-01

    Telehealth has emerged as an innovative approach to aid older individuals in managing chronic diseases in their homes and avoid hospitalizations and institutionalization. However, the sustainability of home telehealth programs remains a major challenge. This qualitative study explored the reasons for the initial adoption and the eventual decline of a decade-long home telehealth program at a Texas home health agency (HHA). Barriers to and facilitators for sustaining home telehealth programs were also explored. Semistructured interviews of 13 HHA nursing staff and administrators, 1 physician, and 9 patients aged >55 years and their informal caregivers who used telehealth were conducted in summer 2013. Interview transcripts were analyzed using conventional content analysis. Data analysis generated 5 themes representing the decline of the Texas home telehealth program: its impact on patient-centered outcomes, its cost-effectiveness, patient-clinician and interprofessional communication, technology usability, and home health management culture. Lack of significant impact on patient outcomes, in addition to financial, technical, management, and communication-related challenges, adversely affected the sustainability of this home telehealth program. A home telehealth program that attains patient-centered outcomes, improves cost-effectiveness of managing chronic diseases, improves quality of communication among patients and clinicians, is user-friendly for older adults, and involves end users in decision making is likely to be sustainable. © The Author 2015. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  7. Assessment of Waco, Texas FLIR videotape

    Science.gov (United States)

    Frankel, Donald S.

    2001-09-01

    The FLIR video recorded by the FBI on 19 April 1993, records the final assault on the Branch Davidian compound in Waco, Texas, and the fire in which some 80 members of the sect died. Attention has focused on a number of flashes recorded on the videotape. The author has examined the 1993 videotape and the recorded videotapes of the re-enactment conducted at Fort Hood, Texas on 19 March 2000. The following conclusions have been reached: 1) The flashes seen on the tape cannot be weapons muzzle flash. Their duration is far too long and their spatial extent is far too great. They are almost certainly the result of solar energy or heat energy form nearby vehicles reflected toward the FLIR by debris or puddles. 2) The FLIR video technology has a very low probability of detecting small arms muzzle flash. 3) As a consequence of 2) above, the absence of muzzle flash detection on the FLIR tape does not prove that no weapons were actually fired during the final assault. Indeed, there is ample evidence (not presented here) that the Davidians fired at the federal agents, but none of their muzzle flashes are detectable on the videotape.

  8. Persevering pays off in Texas restoration project

    Energy Technology Data Exchange (ETDEWEB)

    Kucera, S.

    1993-06-01

    In 1984, all John McNeill wanted was to build a new ice manufacturing plant to expand his Victoria, Texas, ice business. At the time, an abandoned hydroelectric plant near Cuero, Texas, on the Guadalupe River east of San Antonio, seemed an inexpensive way to get his two most costly ingredients: energy and water. He could take water from the river, generate 175 to 200 kilowatt-hours of electricity for his own use, and sell the excess power. The 1.2-MW plant McNeill found had stood idle and in disrepair since 1965 when the owner, Central Power and Light, shut it down after a flood. McNeill bought the plant from the current owners, brothers Ralph and Raleigh Coppedge. The brothers financed McNeill's purchase. He began work on the project, but repeated periods of high water and financial difficulty inhibited progress. Five years later, McNeill teamed with Jimmy Parker, another Texan with an interest and experience in restoring old hydro plants. Together, they formed Cuero Hydroelectric, Inc. During the next four years, they faced floods and solved existing structural problems. They disassembled and repaired the turbines and governors and designed control systems using state-of-the-art technology. Finally, with financial and moral support received from family and friends, they succeeded in bringing the Cuero hydro plant into operation in the winter of 1993.

  9. Shear Wave Structure Beneath Texas and Its Implication for the Opening of The Gulf of Mexico

    Science.gov (United States)

    Yao, Y.; Li, A.

    2016-12-01

    It has been widely accepted that the Gulf of Mexico (GOM) was opened by the counterclockwise rotation of the Yucatan block away from the Texas-Louisiana margin during 140-160 Ma. However, little is known about the geodynamic cause of this rotation. We aim to find clues about the opening of the GOM using a high-resolution, 3D model in Texas with a focus on the coastal plane. We have conducted Rayleigh wave tomography using ambient noise and earthquake data recorded at the USArray TA stations and obtained phase velocity maps for 25 periods from 6 s to 166 s, which are utilized to build a 3-D shear wave velocity model in the crust and upper mantle above 200 km. The Laurentian craton is characterized by high-velocity anomalies, and the low-velocity anomalies mainly appear in the coastal plane. High-velocity maximums are observed following the Ouachita Belt in the entire crust and the uppermost mantle and are correlated with known uplifts. We interpreted these deep-rooted uplifts as accreted island arc materials during the Ouachita collision, which supports the argument of a strong Ouachita lithosphere that helped to confine the thin transition crust to its east and south in the Gulf coast. The most significant low-velocity region is imaged in southeast Texas from the lower crust to at least 200 km depth. This anomaly aligns on the Keathley Canyon hotspot track in the GOM and could be caused by a combination of high temperature, partial melting, and high volatile content. We associate this low-velocity column with a past asthenosphere upwelling that could have originated from the tear of the subducted slab during the Ouachita orogeny. The plume-like upwelling in southeast Texas is probably the main driving force for the opening of the Gulf of Mexico.

  10. Evaluation of Active Mortality Surveillance System Data for Monitoring Hurricane-Related Deaths—Texas, 2008

    Science.gov (United States)

    Choudhary, Ekta; Zane, David F.; Beasley, Crystal; Jones, Russell; Rey, Araceli; Noe, Rebecca S.; Martin, Colleen; Wolkin, Amy F.; Bayleyegn, Tesfaye M.

    2015-01-01

    Introduction The Texas Department of State Health Services (DSHS) implemented an active mortality surveillance system to enumerate and characterize hurricane-related deaths during Hurricane Ike in 2008. This surveillance system used established guidelines and case definitions to categorize deaths as directly, indirectly, and possibly related to Hurricane Ike. Objective The objective of this study was to evaluate Texas DSHS’ active mortality surveillance system using US Centers for Disease Control and Prevention’s (CDC) surveillance system evaluation guidelines. Methods Using CDC’s Updated Guidelines for Surveillance System Evaluation, the active mortality surveillance system of the Texas DSHS was evaluated. Data from the active mortality surveillance system were compared with Texas vital statistics data for the same time period to estimate the completeness of reported disaster-related deaths. Results From September 8 through October 13, 2008, medical examiners (MEs) and Justices of the Peace (JPs) in 44 affected counties reported deaths daily by using a one-page, standardized mortality form. The active mortality surveillance system identified 74 hurricane-related deaths, whereas a review of vital statistics data revealed only four deaths that were hurricane-related. The average time of reporting a death by active mortality surveillance and vital statistics was 14 days and 16 days, respectively. Conclusions Texas’s active mortality surveillance system successfully identified hurricane-related deaths. Evaluation of the active mortality surveillance system suggested that it is necessary to collect detailed and representative mortality data during a hurricane because vital statistics do not capture sufficient information to identify whether deaths are hurricane-related. The results from this evaluation will help improve active mortality surveillance during hurricanes which, in turn, will enhance preparedness and response plans and identify public health

  11. Genetic evidence of enzootic leishmaniasis in a stray canine and Texas mouse from sites in west and central Texas

    Directory of Open Access Journals (Sweden)

    Evan J Kipp

    Full Text Available We detected Leishmania mexicana in skin biopsies taken from a stray canine (Canis familiaris and Texas mouse (Peromyscus attwateri at two ecologically disparate sites in west and central Texas using polymerase chain reaction (PCR. A single PCR-positive dog was identified from a sample of 96 stray canines and was collected in a peri-urban area in El Paso County, Texas. The PCR-positive P. attwateri was trapped at a wildlife reserve in Mason County, Texas, from a convenience sample of 20 sylvatic mammals of different species. To our knowledge, this represents the first description of L. mexicana in west Texas and extends the known geographic range of the parasite to an area that includes the arid Chihuahuan Desert. Our finding of L. mexicana in P. attwateri represents a new host record and is the first description of the parasite in a wild peromyscid rodent in the United States.

  12. Genetic evidence of enzootic leishmaniasis in a stray canine and Texas mouse from sites in west and central Texas.

    Science.gov (United States)

    Kipp, Evan J; Mariscal, Jacqueline; Armijos, Rodrigo X; Weigel, Margaret; Waldrup, Kenneth

    2016-10-01

    We detected Leishmania mexicana in skin biopsies taken from a stray canine (Canis familiaris) and Texas mouse (Peromyscus attwateri) at two ecologically disparate sites in west and central Texas using polymerase chain reaction (PCR). A single PCR-positive dog was identified from a sample of 96 stray canines and was collected in a peri-urban area in El Paso County, Texas. The PCR-positive P. attwateri was trapped at a wildlife reserve in Mason County, Texas, from a convenience sample of 20 sylvatic mammals of different species. To our knowledge, this represents the first description of L. mexicana in west Texas and extends the known geographic range of the parasite to an area that includes the arid Chihuahuan Desert. Our finding of L. mexicana in P. attwateri represents a new host record and is the first description of the parasite in a wild peromyscid rodent in the United States.

  13. CO2 Sequestration Potential of Texas Low-Rank Coals

    Energy Technology Data Exchange (ETDEWEB)

    Duane McVay; Walter Ayers, Jr.; Jerry Jensen; Jorge Garduno; Gonzola Hernandez; Rasheed Bello; Rahila Ramazanova

    2006-08-31

    Injection of CO{sub 2} in coalbeds is a plausible method of reducing atmospheric emissions of CO{sub 2}, and it can have the additional benefit of enhancing methane recovery from coal. Most previous studies have evaluated the merits of CO{sub 2} disposal in high-rank coals. The objective of this research was to determine the technical and economic feasibility of CO{sub 2} sequestration in, and enhanced coalbed methane (ECBM) recovery from, low-rank coals in the Texas Gulf Coast area. Our research included an extensive coal characterization program, including acquisition and analysis of coal core samples and well transient test data. We conducted deterministic and probabilistic reservoir simulation and economic studies to evaluate the effects of injectant fluid composition (pure CO{sub 2} and flue gas), well spacing, injection rate, and dewatering on CO{sub 2} sequestration and ECBM recovery in low-rank coals of the Calvert Bluff formation of the Texas Wilcox Group. Shallow and deep Calvert Bluff coals occur in two, distinct, coalbed gas petroleum systems that are separated by a transition zone. Calvert Bluff coals < 3,500 ft deep are part of a biogenic coalbed gas system. They have low gas content and are part of a freshwater aquifer. In contrast, Wilcox coals deeper than 3,500 ft are part of a thermogenic coalbed gas system. They have high gas content and are part of a saline aquifer. CO{sub 2} sequestration and ECBM projects in Calvert Bluff low-rank coals of East-Central Texas must be located in the deeper, unmineable coals, because shallow Wilcox coals are part of a protected freshwater aquifer. Probabilistic simulation of 100% CO{sub 2} injection into 20 feet of Calvert Bluff coal in an 80-acre 5-spot pattern indicates that these coals can store 1.27 to 2.25 Bcf of CO{sub 2} at depths of 6,200 ft, with an ECBM recovery of 0.48 to 0.85 Bcf. Simulation results of flue gas injection (87% N{sub 2}-13% CO{sub 2}) indicate that these same coals can store 0.34 to 0

  14. Quantitative assessment of different phenolic compounds in Texas olive oils versus foreign oils

    Science.gov (United States)

    Texas Olive Ranch is the first one to produce olive oil and has the sole product in the Texas market place; several growers are now starting to cultivate olive at various sites in Texas. The quality of olive oil produced and pressed in Texas has never been explored. This study was conducted to inv...

  15. Lower bound of multipartite concurrence based on sub-partite quantum systems

    Science.gov (United States)

    Chen, Wei; Zhu, Xue-Na; Fei, Shao-Ming; Zheng, Zhu-Jun

    2017-12-01

    We study the concurrence of arbitrary dimensional multipartite quantum systems. An explicit analytical lower bound of concurrence for four-partite mixed states is obtained in terms of the concurrences of tripartite mixed states. Detailed examples are given to show that our lower bounds improve the existing lower bounds of concurrence. The approach is generalized to five-partite quantum systems.

  16. Mathematical techniques for analyzing concurrent and probabilistic systems

    CERN Document Server

    Rutten, J J M M; Panangaden, Prakash; Panangaden, Prakash; Breugel, Franck van

    2004-01-01

    The book consists of two sets of lecture notes devoted to slightly different methods of analysis of concurrent and probabilistic computational systems. The first set of lectures develops a calculus of streams (a generalization of the set of natural numbers) based on the coinduction principle coming from the theory of coalgebras. It is now well understood that the interplay between algebra (for describing structure) and coalgebra (for describing dynamics) is crucial for understanding concurrent systems. There is a striking analogy between streams and formula calculus reminiscent to those appearing in quantum calculus. These lecture notes will appeal to anyone working in concurrency theory but also to algebraists and logicians. The other set of lecture notes focuses on methods for automatically verifying probabilistic systems using techniques of model checking. The unique aspect of these lectures is the coverage of both theory and practice. The authors have been responsible for one of the most successful experi...

  17. Concurrent use of cigarettes and smokeless tobacco in Minnesota.

    Science.gov (United States)

    Boyle, Raymond G; St Claire, Ann W; Kinney, Ann M; D'Silva, Joanne; Carusi, Charles

    2012-01-01

    Cigarette smokers are being encouraged to use smokeless tobacco (SLT) in locations where smoking is banned. We examined state-wide data from Minnesota to measure changes over time in the use of SLT and concurrent use of cigarettes and SLT. The Minnesota Adult Tobacco Survey was conducted four times between 1999 and 2010 and has provided state-wide estimates of cigarette smoking, SLT use and concurrent use of SLT by smokers. The prevalence of SLT was essentially unchanged through 2007, then increased significantly between 2007 and 2010 (3.1% versus 4.3%, P cigarette smokers who reported using SLT was stable then increased between 2007 and 2010 (4.4% versus 9.6%, P alternative products as they adjust to recent public policies restricting smoking in public places. The findings are suggestive that some Minnesota smokers are switching to concurrent use of cigarettes and SLT. Future surveillance reports will be necessary to confirm the results.

  18. Revascularization Operation for Moyamoya Disease with Concurrent von Willebrand Disease.

    Science.gov (United States)

    Miki, Kenji; Arimura, Koichi; Nishimura, Ataru; Yoshimoto, Koji; Sayama, Tetsuro; Iihara, Koji

    2017-12-01

    Although extracranial-intracranial (EC-IC) bypass is an effective treatment strategy for symptomatic moyamoya disease, surgeons need to be cautious regarding the possibility of postoperative hemorrhagic complications in patients with a concurrent coagulation disorder. Here, we describe a case of EC-IC bypass for moyamoya disease concurrent with von Willebrand disease type 1. Following perioperative replacement of the von Willebrand factor, the patient showed an uneventful and uncomplicated clinical course. This is the first reported case of EC-IC bypass being performed for moyamoya disease in a patient with concurrent von Willebrand disease. We emphasize the importance of appropriate management with replacement of the von Willebrand factor during the perioperative period to avoid hemorrhagic complications. Copyright © 2017 Elsevier Inc. All rights reserved.

  19. Texas geothermal R D and D program planning support document. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Davis, R.J.; Conover, M.F.; Keeney, R.C.; Personett, M.L.; Richmann, D.L.

    1981-08-28

    Program planning support was provided by; developing a geothermal RD and D program structure, characterizing the status of geothermal RD and D through review of literature and interaction with the geothermal research community, developing a candidate list of future Texas geothermal projects, and prioritizing the candidate projects based on appropriate evaluation criteria. The method used to perform this study and the results thereof are presented. Summary reviews of selected completed and ongoing projects and summary descriptions and evaluations of the candidate RD and D projects ar provided. A brief discussion emerging federal RD and D policies is presented. References and independent project rankings by three of the GRP members are included. (MHR)

  20. Dealing with the inevitable: Strategies of self-presentation and meaning construction in the final statements of inmates on Texas death row

    NARCIS (Netherlands)

    Schuck, A.R.T.; Ward, J.

    2008-01-01

    Last statements of death row inmates represent a genre of discourse characterized by an acute situation in which to express final reflections. This article describes how Texas death row inmates give meaning to their situation by examining their last statements. Between December 1982 and November

  1. A useful strong lower bound on two-qubit concurrence

    Science.gov (United States)

    Jafarpour, Mojtaba; Sabour, Abbass

    2012-12-01

    A new strong lower bound on concurrence for two-qubit states is derived. Its equality with the concurrence itself for the pure- and X-states is proved analytically; while extensive numerical computations show that equality for a general mixed state may also exist. Being a very simple function and easy to calculate, it is more convenient and practical than the exact value in some cases, including entanglement investigations in spin chains. We study thermal localizable entanglement in spin chains as an example, to demonstrate the convenience of this bound.

  2. Separative Power of an Optimised Concurrent Gas Centrifuge

    Directory of Open Access Journals (Sweden)

    Sergey Bogovalov

    2016-06-01

    Full Text Available The problem of separation of isotopes in a concurrent gas centrifuge is solved analytically for an arbitrary binary mixture of isotopes. The separative power of the optimised concurrent gas centrifuges for the uranium isotopes equals to δU = 12.7 (V/700 m/s2(300 K/T(L/1 m kg·SWU/yr, where L and V are the length and linear velocity of the rotor of the gas centrifuge and T is the temperature. This equation agrees well with the empirically determined separative power of optimised counter-current gas centrifuges.

  3. The contribution of mangrove expansion to salt marsh loss on the Texas Gulf Coast.

    Science.gov (United States)

    Armitage, Anna R; Highfield, Wesley E; Brody, Samuel D; Louchouarn, Patrick

    2015-01-01

    Landscape-level shifts in plant species distribution and abundance can fundamentally change the ecology of an ecosystem. Such shifts are occurring within mangrove-marsh ecotones, where over the last few decades, relatively mild winters have led to mangrove expansion into areas previously occupied by salt marsh plants. On the Texas (USA) coast of the western Gulf of Mexico, most cases of mangrove expansion have been documented within specific bays or watersheds. Based on this body of relatively small-scale work and broader global patterns of mangrove expansion, we hypothesized that there has been a recent regional-level displacement of salt marshes by mangroves. We classified Landsat-5 Thematic Mapper images using artificial neural networks to quantify black mangrove (Avicennia germinans) expansion and salt marsh (Spartina alterniflora and other grass and forb species) loss over 20 years across the entire Texas coast. Between 1990 and 2010, mangrove area grew by 16.1 km(2), a 74% increase. Concurrently, salt marsh area decreased by 77.8 km(2), a 24% net loss. Only 6% of that loss was attributable to mangrove expansion; most salt marsh was lost due to conversion to tidal flats or water, likely a result of relative sea level rise. Our research confirmed that mangroves are expanding and, in some instances, displacing salt marshes at certain locations. However, this shift is not widespread when analyzed at a larger, regional level. Rather, local, relative sea level rise was indirectly implicated as another important driver causing regional-level salt marsh loss. Climate change is expected to accelerate both sea level rise and mangrove expansion; these mechanisms are likely to interact synergistically and contribute to salt marsh loss.

  4. The contribution of mangrove expansion to salt marsh loss on the Texas Gulf Coast.

    Directory of Open Access Journals (Sweden)

    Anna R Armitage

    Full Text Available Landscape-level shifts in plant species distribution and abundance can fundamentally change the ecology of an ecosystem. Such shifts are occurring within mangrove-marsh ecotones, where over the last few decades, relatively mild winters have led to mangrove expansion into areas previously occupied by salt marsh plants. On the Texas (USA coast of the western Gulf of Mexico, most cases of mangrove expansion have been documented within specific bays or watersheds. Based on this body of relatively small-scale work and broader global patterns of mangrove expansion, we hypothesized that there has been a recent regional-level displacement of salt marshes by mangroves. We classified Landsat-5 Thematic Mapper images using artificial neural networks to quantify black mangrove (Avicennia germinans expansion and salt marsh (Spartina alterniflora and other grass and forb species loss over 20 years across the entire Texas coast. Between 1990 and 2010, mangrove area grew by 16.1 km(2, a 74% increase. Concurrently, salt marsh area decreased by 77.8 km(2, a 24% net loss. Only 6% of that loss was attributable to mangrove expansion; most salt marsh was lost due to conversion to tidal flats or water, likely a result of relative sea level rise. Our research confirmed that mangroves are expanding and, in some instances, displacing salt marshes at certain locations. However, this shift is not widespread when analyzed at a larger, regional level. Rather, local, relative sea level rise was indirectly implicated as another important driver causing regional-level salt marsh loss. Climate change is expected to accelerate both sea level rise and mangrove expansion; these mechanisms are likely to interact synergistically and contribute to salt marsh loss.

  5. The Contribution of Mangrove Expansion to Salt Marsh Loss on the Texas Gulf Coast

    Science.gov (United States)

    Brody, Samuel D.; Louchouarn, Patrick

    2015-01-01

    Landscape-level shifts in plant species distribution and abundance can fundamentally change the ecology of an ecosystem. Such shifts are occurring within mangrove-marsh ecotones, where over the last few decades, relatively mild winters have led to mangrove expansion into areas previously occupied by salt marsh plants. On the Texas (USA) coast of the western Gulf of Mexico, most cases of mangrove expansion have been documented within specific bays or watersheds. Based on this body of relatively small-scale work and broader global patterns of mangrove expansion, we hypothesized that there has been a recent regional-level displacement of salt marshes by mangroves. We classified Landsat-5 Thematic Mapper images using artificial neural networks to quantify black mangrove (Avicennia germinans) expansion and salt marsh (Spartina alterniflora and other grass and forb species) loss over 20 years across the entire Texas coast. Between 1990 and 2010, mangrove area grew by 16.1 km2, a 74% increase. Concurrently, salt marsh area decreased by 77.8 km2, a 24% net loss. Only 6% of that loss was attributable to mangrove expansion; most salt marsh was lost due to conversion to tidal flats or water, likely a result of relative sea level rise. Our research confirmed that mangroves are expanding and, in some instances, displacing salt marshes at certain locations. However, this shift is not widespread when analyzed at a larger, regional level. Rather, local, relative sea level rise was indirectly implicated as another important driver causing regional-level salt marsh loss. Climate change is expected to accelerate both sea level rise and mangrove expansion; these mechanisms are likely to interact synergistically and contribute to salt marsh loss. PMID:25946132

  6. The Texas Advanced Directive Law: Unfinished Business.

    Science.gov (United States)

    Kapottos, Michael; Youngner, Stuart

    2015-01-01

    The Texas Advance Directive Act allows physicians and hospitals to overrule patient or family requests for futile care. Purposefully not defining futility, the law leaves its determination in specific cases to an institutional process. While the law has received several criticisms, it does seem to work constructively in the cases that come to the review process. We introduce a new criticism: While the law has been justified by an appeal to professional values such as avoiding harm to patients, avoiding the provision of unseemly care, and good stewardship of medical resources, it is applied incompletely. It allows physicians and institutional committees to refuse "futile" treatments desired by patients and families while at the same time providing no way of regulating physicians who recommend or even push "futile" treatments in similar cases. In this sense, the TADA is incomplete on its own terms.

  7. Environmental assessment: Deaf Smith County site, Texas

    Energy Technology Data Exchange (ETDEWEB)

    1986-05-01

    In February 1983, the US Department of Energy (DOE) identified a location in Deaf Smith County, Texas, as one of the nine potentially acceptable sites for mined geologic repository for spent nuclear fuel and high-level radioactive waste. To determine their suitability, the Deaf Smith County site and eight other potentially acceptable sites have been evaluated in accordance with the DOE's General Guidelines for the Recommendation of Sites for the Nuclear Waste Repositories. The Deaf Smith County site is in the Permian Basin, which is one of five distinct geohydrologic settings considered for the first repository. On the basis of the evaluations reported in this EA, the DOE has found that the Deaf Smith County site is not disqualified under the guidelines.

  8. Renewable Energy Opportunities at Fort Hood, Texas

    Energy Technology Data Exchange (ETDEWEB)

    Solana, Amy E.; Warwick, William M.; Orrell, Alice C.; Russo, Bryan J.; Parker, Kyle R.; Weimar, Mark R.; Horner, Jacob A.; Manning, Anathea

    2011-11-14

    This report presents the results of Pacific Northwest National Laboratory's (PNNL) follow-on renewable energy (RE) assessment of Fort Hood. Fort Hood receives many solicitations from renewable energy vendors who are interested in doing projects on site. Based on specific requests from Fort Hood staff so they can better understand these proposals, and the results of PNNL's 2008 RE assessment of Fort Hood, the following resources were examined in this assessment: (1) Municipal solid waste (MSW) for waste-to-energy (WTE); (2) Wind; (3) Landfill gas; (4) Solar photovoltaics (PV); and (5) Shale gas. This report also examines the regulatory issues, development options, and environmental impacts for the promising RE resources, and includes a review of the RE market in Texas.

  9. Biostratigraphy of Echinoid spines, Cretaceous of Texas

    Energy Technology Data Exchange (ETDEWEB)

    Kirkland, P.L.

    1984-04-01

    Echinoid (sea urchin) spines from Cretaceous strata have widely varying morphology. They are common, and most are small enough to be recovered from well cuttings. Many forms have restricted ranges; consequently, echinoid spine have substantial biostratigraphic utility. There have been established 115 form taxa of echinoid spines and 14 form taxa of ophiuroid-asteroid spines for the Cretaceous of Texas. The specimens used for establishing the form taxa were processed from 533 outcrop samples (78 localities) from 30 Cretaceous formations, each with a well-defined age based on faunal zones of ammonites and Foraminifera. A dichotomous key in 9 parts and a catalog of scanning electron micrographs (87 plates) have been set up to assist identification of the form taxa. Range charts for the echinoid and ophiuroid-asteroid form taxa have utility through the Cretaceous of much of the Gulf Coastal area. The most precise zonation has been possible for the Albian.

  10. What caused the spring intensification and winter demise of the 2011 drought over Texas?

    Science.gov (United States)

    Fernando, D. Nelun; Mo, Kingtse C.; Fu, Rong; Pu, Bing; Bowerman, Adam; Scanlon, Bridget R.; Solis, Ruben S.; Yin, Lei; Mace, Robert E.; Mioduszewski, John R.; Ren, Tong; Zhang, Kai

    2016-11-01

    The 2011 Texas drought, the worst 1-year drought on record, was characterized by spring intensification of rainfall deficit and surface dryness. Such spring intensification was led by an unusually strong increase of convective inhibition (CIN), which suppressed convection at the time critical for the onset of the April-June rainfall season. The CIN increase appeared to be caused by strong sub-seasonal anomalously westerly winds at 850 hPa (U850) in April, in addition to surface dryness due to cumulative rainfall deficit since fall of 2010. The anomalous U850 advected warm dry air from the Mexican Plateau to Texas, enhancing cap inversion, and exacerbating static stability initially elevated by an anomalously high surface Bowen ratio due to rainfall deficits from winter through spring over Texas. Strengthened westerly U850 in April, in addition to the persistent rainfall deficits from winter through spring, are common characteristics in other strong drought events experienced over Texas. Atmospheric Model Intercomparison Project-type simulations with prescribed La Niña SSTAs in the tropical Pacific do not show a strengthening of westerly U850 in April, suggesting that internal atmospheric variability at intraseasonal scale, instead of La Niña, may initiate the spring drought intensification over Texas. Soil moisture deficits in late spring are significantly correlated with positive 500 hPa geopotential height anomalies over the south central U.S. 2-3 weeks later, suggesting that intensified surface dryness in late-spring could reinforce the drought-inducing anomalous mid-tropospheric high. The drought diminished in the winter of 2011/2012 despite a second La Niña event. Our analysis suggests an important role for strong westerly wind anomalies, the resultant increase of CIN in spring, and subsequent positive feedback between dry surface anomalies and the anomalous large-scale circulation pattern in drought intensification. Clarification of the mechanisms behind

  11. Successful integration of industry and education with concurrent engineering projects

    NARCIS (Netherlands)

    Ir. H.E.V. Veenstra; Ir. Peter van Kollenburg

    1998-01-01

    The Department of Electrical and Electronic Engineering at the Fontys University of Professional Education in Eindhoven, The Netherlands, offers a course which is being developed around the principles of Concurrent Engineering. From research we found that in general students are not completely aware

  12. Sexual networks and social capital: multiple and concurrent sexual ...

    African Journals Online (AJOL)

    Multiple and concurrent sexual partnerships (MCP) are prevalent in southern Africa and have been identified as a primary cause of high HIV prevalence in this region. Sexual liaisons with multiple partners serve to increase the size and diversity of an individual's sexual — and social — network and therefore to increase their ...

  13. A Symbolic Approach to Permission Accounting for Concurrent Reasoning

    NARCIS (Netherlands)

    Huisman, Marieke; Mostowski, Wojciech

    2015-01-01

    Permission accounting is fundamental to modular, thread-local reasoning about concurrent programs. This paper presents a new, symbolic system for permission accounting. In existing systems, permissions are numeric value-based and refer to the current thread only. Our system is based on symbolic

  14. Transactions on Petri Nets and Other Models of Concurrency VI

    DEFF Research Database (Denmark)

    The sixth volume of ToPNoC includes revised versions of selected papers from workshops and tutorials held at the 32nd International Conference on Application and Theory of Petri Nets and Concurrency. It also contains a special section on Networks, Protocols, and Services, as well as a contributed...

  15. Effects of Serial and Concurrent Training on Acquisition and Generalization

    Science.gov (United States)

    Wunderlich, Kara L.; Vollmer, Timothy R.; Donaldson, Jeanne M.; Phillips, Cara L.

    2014-01-01

    Despite a large body of research demonstrating that generalization to novel stimuli can be produced by training sufficient exemplars, the methods by which exemplars can be trained remain unclear. The purpose of the current study was to evaluate 2 methods, serial and concurrent presentation of stimuli, to train sufficient exemplars. Five preschool…

  16. A Patient Presenting with Concurrent Testis Torsion and Epididymal Leiomyoma

    Directory of Open Access Journals (Sweden)

    E. Arpali

    2013-01-01

    Full Text Available Leiomyomas are the second most common tumors of epididymis. Patients with leiomyomas are sometimes misdiagnosed with testicular tumors. A Case of a patient with a scrotal mass presenting with testicular torsion is reported. Concurrent occurrence of testicular torsion and epididymal leiomyoma is an extremely rare condition.

  17. Concurrent Validity of Holland's Theory for College Degreed Working Women

    Science.gov (United States)

    Horton, Joseph A.; Walsh, W. Bruce

    1976-01-01

    The study was designed to explore two areas: (1) the concurrent validity of Holland's theory for employed college degreed women using two different operational definitions (Vocational Preference Inventory and the Self-Directed Search) of vocational orientation; and (2) the relationships among same named scales across the VPI and the SDS. (Author)

  18. Association of HIV prevalence and concurrency of sexual ...

    African Journals Online (AJOL)

    2013-03-03

    Mar 3, 2013 ... Background. There is considerable variation in HIV prevalence between different language groups in South Africa (SA). Sexual partner concurrency has been linked to the spread of HIV, but its effect on differential HIV transmission within SA's language groups has not been investigated quantitatively.

  19. The Relational Concurrence of Global Warming and Economic ...

    African Journals Online (AJOL)

    An attempt has been made to examine the concurrent relationship between global warming and economic development focusing on the danger it inheres in developing countries. To achieve this, the paper commenced with the conceptualization of global warming and economic development, the natural and human causes ...

  20. Page 1 Scalable concurrent computing 197 [M] [N] . . . [M] " memory ...

    Indian Academy of Sciences (India)

    Each instruction stream operates on multiple units of data such as a vector or array instead of on a single operand. A single control unit coordinates the operation of the multiple processors. Synchronous computers using global clocks are quite special purpose and rather restrictive in their model of concurrent computation.

  1. Investigating the Alignment of Concurrent Design Strategies with Business Strategies

    Directory of Open Access Journals (Sweden)

    Heidar Mirfakhredini

    2013-08-01

    Full Text Available In recent years, managing the interface between design and other activities has received considerable attention. Effective coordination among these areas is therefore vital for effectiveness of the organization. The ideal situation would be continuous interdepartmental contact with well-developed channels of communication. In this study, the best strategy for product design department has been chosen using the strategic formulation framework with fuzzy approach. Subsequently, alignment of each functional design strategy with SAPCO business strategies has been explained. Findings indicate that developing partnerships with global automotive and engineering design companies and building strategic alliances with rival firms to achieve competitive advantages have maximum alignment with business strategies. In addition, findings provide a basis for firms in evaluating the concurrent design strategies and a reference for them to strengthen their concurrent capabilities. There are few reports on sustained use of concurrent design as an on-going strategic process in an organization. This study aims at contributing to the concurrent design solutions.

  2. Responses of rabbits to concurrent administration of Furosemide ...

    African Journals Online (AJOL)

    The intramuscular (IM) administrations of 5 mg/kg xylazine, followed 30 min later by IM of 35 mg/kg ketamine alone (XK) or concurrently with IM of 1 mg/kg furosemide (XKF), were assessed in six healthy rabbits (4 bucks and 2 does) using selected anaesthetic indices (time to onset of anaesthesia, time to onset of analgesia, ...

  3. Comparative Efficacy of Cisplatin vs. Gemcitabine as Concurrent ...

    African Journals Online (AJOL)

    To conclude, Cisplatin appears to be better than Gemcitabine when used as a radio sensitizer for untreated locally advanced cervical cancer in terms of response and toxicity. Keywords: Cervical cancer, Gemcitabine, Cisplatin, radiotherapy, concurrent chemotherapy. Internet Journal of Medical Update Vol. 2 (1) 2007: pp.

  4. Concurrent Movement Impairs Incidental but Not Intentional Statistical Learning

    Science.gov (United States)

    Stevens, David J.; Arciuli, Joanne; Anderson, David I.

    2015-01-01

    The effect of concurrent movement on incidental versus intentional statistical learning was examined in two experiments. In Experiment 1, participants learned the statistical regularities embedded within familiarization stimuli implicitly, whereas in Experiment 2 they were made aware of the embedded regularities and were instructed explicitly to…

  5. Physiologic Evidences Of Good Tolerance Of Concurrent Rumen ...

    African Journals Online (AJOL)

    Twelve adult West African Dwarf (WAD) sheep of mean age and body weight of 18 ± 1.19 months and 14.69 ± 256 kg body weight respectively were used to study the compatibility of concurrent rumen fisulation and duodenal cannulation with normal life. The compatibility with norma life was assessed by differences in body ...

  6. Concurrent psu dic(21)(q22.3)

    Indian Academy of Sciences (India)

    Velásquez A. I. 2014 Concurrent psu dic(21)(q22.3) and t(13;17)(q14.1;p12) in a mosaic Down's syndrome patient: review of thirty-one similar dicentrics. J. Genet. 93, 189–192]. Introduction. Pseudodicentric 'mirror-image' chromosomes 21 with break-.

  7. Transactions on Petri Nets and Other Models of Concurrency V

    DEFF Research Database (Denmark)

    submission track of ToPNoC. The 12 papers cover a diverse range of topics including model checking and system verification, synthesis, foundational work on specific classes of Petri nets, and innovative applications of Petri nets and other models of concurrency. Thus, this volume gives a good view of ongoing...

  8. 37 CFR 2.73 - Amendment to recite concurrent use.

    Science.gov (United States)

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Amendment to recite concurrent use. 2.73 Section 2.73 Patents, Trademarks, and Copyrights UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE RULES OF PRACTICE IN TRADEMARK CASES Amendment of Application § 2.73...

  9. Context-Based Synchronization of Concurrent Process Using Aspect ...

    African Journals Online (AJOL)

    The algorithm supporting most of these structures works by keeping at bay all other concurrent processes or threads till the current process accessing the resource ... In this paper, we propose contextual synchronization model to avoid where applicable, the unnecessary build-up of threads waiting for access to the resource.

  10. Threaded Cognition: An Integrated Theory of Concurrent Multitasking

    Science.gov (United States)

    Salvucci, Dario D.; Taatgen, Niels A.

    2008-01-01

    The authors propose the idea of threaded cognition, an integrated theory of concurrent multitasking--that is, performing 2 or more tasks at once. Threaded cognition posits that streams of thought can be represented as threads of processing coordinated by a serial procedural resource and executed across other available resources (e.g., perceptual…

  11. The Stay/Switch Model of Concurrent Choice

    Science.gov (United States)

    MacDonall, James S.

    2009-01-01

    This experiment compared descriptions of concurrent choice by the stay/switch model, which says choice is a function of the reinforcers obtained for staying at and for switching from each alternative, and the generalized matching law, which says choice is a function of the total reinforcers obtained at each alternative. For the stay/switch model…

  12. Transactions on Petri Nets and Other Models of Concurrency V

    DEFF Research Database (Denmark)

    The fifth volume of ToPNoC contains revised versions of selected papers from workshops and tutorials held in conjunction with the 31st International Conference on Application and Theory of Petri Nets and Other Models of Concurrency, as well as a contributed paper selected through the regular subm...

  13. Concurrent use of Antiretroviral and African traditional medicines ...

    African Journals Online (AJOL)

    Background: People living with HIV/AIDS (PLWA) often use African Traditional Medicines (ATM) either alone or in combination with Western medicines including Antiretrovirals (ARV). Objective: To explore the prevalence of concurrent Antiretrovirals (ARV) and African Traditional medicines (ATM) use and determine the ...

  14. On the road again: concurrency and condom use among Uganda ...

    African Journals Online (AJOL)

    Long-distance truck drivers have been shown to be a critical population in the spread of HIV in Africa. In 2009, surveys with 385 Ugandan long-distance truck drivers measured concurrency point prevalence with two methods; it ranged from 37.4% (calendar-method) to 50.1% (direct question). The majority (84%) of ...

  15. Concurrent Speech Segregation Problems in Hearing Impaired Children

    Directory of Open Access Journals (Sweden)

    Hossein Talebi

    2014-04-01

    Full Text Available Objective: This study was a basic investigation of the ability of concurrent speech segregation in hearing impaired children. Concurrent segregation is one of the fundamental components of auditory scene analysis and plays an important role in speech perception. In the present study, we compared auditory late responses or ALRs between hearing impaired and normal children. Materials & Methods: Auditory late potentials in response to 12 double vowels were recorded in 10 children with moderate to severe sensory neural hearing loss and 10 normal children. Double vowels (pairs of synthetic vowels were presented concurrently and binaurally. Fundamental frequency (F0 of these vowels and the size of the difference in F0 between vowels was 100 Hz and 0.5 semitones respectively. Results: Comparing N1-P2 amplitude showed statistically significant difference in some stimuli between hearing impaired and normal children (P<0.05. This complex indexing the vowel change detection and reflecting central auditory speech representation without active client participation was decreased in hearing impaired children. Conclusion: This study showed problems in concurrent speech segregation in hearing impaired children evidenced by ALRs. This information indicated deficiencies in bottom-up processing of speech characteristics based on F0 and its differences in these children.

  16. On the Expressive Power of Temporal Concurrent Constraint Programming Languages

    DEFF Research Database (Denmark)

    Nielsen, Mogens; Palamidessi, Catuscia; Valencia, Frank D.

    2002-01-01

    The tcc paradigm is a formalism for timed concurrent constraint programming. Several tcc languages differing in their way of expressing infinite behavior have been proposed in the literature. In this paper we study the expressive power of some of these languages. In particular, we show that: (1...

  17. Unruptured sinus of Valsalva aneurysm presenting with concurrent Morgagni hernia

    Science.gov (United States)

    Davis, S. Scott; Chen, Edward P.; Henry, Travis S.; Book, Wendy M.

    2015-01-01

    We describe a patient with dyspnea and intermittent cyanosis who was found to have concurrent right diaphragmatic and right atrial masses, initially thought to have advanced vascular sarcoma. She was ultimately diagnosed with an unruptured sinus of Valsalva aneurysm, a Morgagni hernia, and a patent foramen ovale. Her dyspnea and cyanosis resolved after sequential surgical correction of these defects. PMID:26424953

  18. Painful snapping hip owing to bifid iliopsoas tendon and concurrent ...

    African Journals Online (AJOL)

    2015-05-22

    May 22, 2015 ... A case of internal snapping hip owing to a bifid iliopsoas tendon is described with a concurrent labral tear in a young active female. The labral tear was identified on magnetic resonance imaging, and the snapping bifid tendon on dynamic ultrasound. The patient was administered bupivicaine and steroid ...

  19. Restructuring Symbolic Programs for Concurrent Execution on Multiprocessors

    Science.gov (United States)

    1989-05-01

    spastic kind. -Richard G. Gill, White Water and Black Magic Optin1ization of Concurrent Progran1s This chapter briefly describes some...the definition above can be strengthened by the additional constraint: 4. The execution of 5 1 and 5 2 is not mutually exclusive. Precisely

  20. Reliability and concurrent validity of an alternative method of lateral ...

    African Journals Online (AJOL)

    Results:Intra-rater reliability demonstrated substantial agreement for both measures (ICC3,1 > 0.84). ... measure/ruler, goniometry, linear measures, and inclinometry.[18]. The method of assessment varies among ... intra-rater reliability of the FFD test as well as its concurrent validity compared to digital inclinometry when ...

  1. Concurrent and Predictive Validity of the Galician CDI

    Science.gov (United States)

    Perez-Pereira, Miguel; Resches, Mariela

    2011-01-01

    This paper explores the concurrent and predictive validity of the long and short forms of the Galician version of the MacArthur-Bates CDI (IDHC). Forty-two Galician-speaking children were longitudinally evaluated at age 1 ; 6, 2 ; 0 and 4 ; 0. On the first two occasions, the subjects' vocabulary and grammar skills were assessed through the IDHC.…

  2. Towards PCC for Concurrent and Distributed Systems (Work in Progress)

    Science.gov (United States)

    Henriksen, Anders S.; Filinski, Andrzej

    2009-01-01

    We outline some conceptual challenges in extending the PCC paradigm to a concurrent and distributed setting, and sketch a generalized notion of module correctness based on viewing communication contracts as economic games. The model supports compositional reasoning about modular systems and is meant to apply not only to certification of executable code, but also of organizational workflows.

  3. Texas transportation planning for future renewable energy projects : final report.

    Science.gov (United States)

    2017-03-01

    There will be a significant increase in the number of renewable energy production facilities in Texas. The : construction of wind farms requires the transport of wind turbine components that create increased loads on : rural roads and bridges. These ...

  4. 76 FR 42573 - Radio Broadcasting Services; Oklahoma and Texas

    Science.gov (United States)

    2011-07-19

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Oklahoma and Texas AGENCY: Federal Communications... Review filed by Rawhide Radio, LLC, Capstar TX Limited Partnership, Clear Channel Broadcasting Licenses...

  5. Contaminants investigation of the San Antonio River of Texas, 1995

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — In 1992, the U.S. Fish and Wildlife Service conducted a contaminants investigation on fish collected from the San Antonio and Guadalupe Rivers in southeast Texas....

  6. Parent-taught driver education in Texas : a comparative evaluation

    Science.gov (United States)

    2007-04-01

    An evaluation of the Parent-Taught Driver Education (PTDE) program in Texas was conducted using three different research techniques: (1) focus groups with driver education instructors, teen drivers, and their parents; (2) statewide mail survey of you...

  7. National Status and Trends: Bioeffects Program - Sabine Lake, Texas Database

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The toxicity of sediments in Sabine Lake, Texas, and adjoining Intracoastal Waterway canals was determined as part of bioeffects assessment studies managed by NOAA's...

  8. Paris, Texas. Saksamaal ja sinu peas / Kairi Prints

    Index Scriptorium Estoniae

    Prints, Kairi

    2010-01-01

    6.- 12. oktoobrini Tallinnas ja Tartus toimuval filmifestivalil "Uus Saksa Kino" saab vaadata Wim Wendersi muusikadokumentaale. "Film ja filosoofia" rubriigis koha- ja rahvusespetsiifika eksistentsist tänapäeva filmikunstis ja W. Wendersi filmist "Paris, Texas" (USA 1984)

  9. Performance evaluation of cable median barrier systems in Texas.

    Science.gov (United States)

    2009-08-01

    Since 2003, the Texas Department of Transportation (TxDOT) has embarked on an aggressive campaign to install : median barriers to prevent cross-median crashes on freeway facilities statewide. In the few years prior to 2003, : virtually all fatalities...

  10. Texas cracking performance prediction, simulation, and binder recommendation.

    Science.gov (United States)

    2014-10-01

    Recent studies show some mixes with softer binders used outside of Texas (e.g., Minnesotas Cold Weather Road Research Facility mixes) have both good rutting and cracking performance. However, the current binder performance grading (PG) system fail...

  11. Initial Contaminants Survey of Hagerman National Wildlife Refuge, Texas

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — An initial contaminants survey was conducted at Hagerman National Wildlife Refuge (HNWR) in north central Texas. Contaminants from a variety of sources have the...

  12. Digital Geologic Map of Sherman Quadrangle, North-Central Texas

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This digital data set contains geologic formations for the 1:250,000-scale Sherman quadrangle, Texas and Oklahoma. The original data are from the Bureau of Economic...

  13. Evaluation of Faecal Salmonella Shedding Among Dogs at Seven Animal Shelters across Texas.

    Science.gov (United States)

    Leahy, A M; Cummings, K J; Rodriguez-Rivera, L D; Rankin, S C; Hamer, S A

    2016-11-01

    Estimates of prevalence of faecal Salmonella shedding among dogs in the United States have varied widely. Surveillance among shelter dogs has been limited, although dogs in animal shelters may be at elevated risk of Salmonella infection because of their previous exposure history as well as factors inherent to shelter environments. Our objectives were to estimate the prevalence of Salmonella shedding among shelter dogs across Texas, to identify risk factors for shedding and to characterize the isolates. Using a repeated cross-sectional study design, we collected faecal samples from dogs on two or three visits to each of seven Texas animal shelters between May 2013 and December 2014. Standard bacteriologic culture methods were used to isolate Salmonella from samples, and isolates were characterized via serotyping and anti-microbial susceptibility testing. The prevalence of faecal Salmonella shedding among sampled dogs was 4.9% (27/554), and within-shelter prevalence ranged from 1.9% to 8.3%. There was a marginal association (P = 0.09) between watery faecal samples and positive Salmonella status, as estimated by a logistic regression model that controlled for shelter as a random effect. However, over 60% of Salmonella-positive dogs had grossly normal faeces. Salmonella prevalence did not vary significantly by age group or sex. The most common serovars were Newport (22%) and Javiana (15%), both of which were widespread among shelters. Resistance to anti-microbial agents was uncommon. The prevalence of faecal Salmonella shedding among shelter dogs in Texas appears to be comparable to that seen among pet dogs in general. © 2016 Blackwell Verlag GmbH.

  14. Groundwater Policy Research: Collaboration with Groundwater Conservation Districts in Texas

    OpenAIRE

    Johnson, Jeffrey W.; Johnson, Phillip N.; Guerrero, Bridget L.; Weinheimer, Justin; Amosson, Stephen H.; Almas, Lal K.; Golden, Bill B.; Wheeler-Cook, Erin

    2011-01-01

    The unique nature of the Ogallala Aquifer presents interesting and confounding problems for water policymakers who are coping with changing groundwater rules in Texas. The purpose of this article is to link previous efforts in water policy research for the Ogallala Aquifer in Texas with current collaborations that are ongoing with regional water planners. A chronological progression of economic water modeling efforts for the region is reviewed. The results of two recent collaborative studies ...

  15. Flash flood swift water rescues, Texas, 2005–2014

    OpenAIRE

    Vaidehi Shah; Katie R. Kirsch; Diana Cervantes; David F. Zane; Tracy Haywood; Jennifer A. Horney

    2017-01-01

    Although rainfall patterns are complex and difficult to predict, climate models suggest precipitation in Texas will occur less frequently and with greater intensity in the future. In combination with rapid population growth and development, extreme rainfall events are likely to lead to flash floods and necessitate swift water rescues. Swift water rescues are used to retrieve person(s) from swift water flowing at a rate of 1 knot or greater. Data were obtained from the Texas Fire Marshal’s Off...

  16. Texas' Child Population: More Kids, More Diversity, More Responsibility

    Science.gov (United States)

    Deviney, Frances; Phillips, Pace

    2011-01-01

    Every 10 years, the U.S. Census Bureau counts every man, woman, and child to track the growth of our national, state, and local populations. Between 2000 and 2010, Texas' total population grew at twice the national rate to more than 25 million people. A large part of Texas' growth is due our child population, which grew by 16 percent to 6.9…

  17. Genetic algorithm guided population pharmacokinetic model development for simvastatin, concurrently or non-concurrently co-administered with amlodipine.

    Science.gov (United States)

    Chaturvedula, Ayyappa; Sale, Mark E; Lee, Howard

    2014-02-01

    An automated model development was performed for simvastatin, co-administered with amlodipine concurrently or non-concurrently (i.e., 4 hours later) in 17 patients with coexisting hyperlipidemia and hypertension. The single objective hybrid genetic algorithm (SOHGA) was implemented in the NONMEM software by defining the search space for structural, statistical and covariate models. Candidate models obtained from the SOHGA runs were further assessed for biological plausibility and the precision of parameter estimates, followed by traditional backward elimination process for model refinement. The final population pharmacokinetic model shows that the elimination rate constant for simvastatin acid, the active form by hydrolysis of its lactone prodrug (i.e., simvastatin), is only 44% in the concurrent amlodipine administration group compared with the non-concurrent group. The application of SOHGA for automated model selection, combined with traditional model selection strategies, appears to save time for model development, which also can generate new hypotheses that are biologically more plausible. © 2013, The American College of Clinical Pharmacology.

  18. Bronchoscopy, Imaging, and Concurrent Diseases in Dogs with Bronchiectasis: (2003-2014).

    Science.gov (United States)

    Johnson, L R; Johnson, E G; Vernau, W; Kass, P H; Byrne, B A

    2016-01-01

    Bronchiectasis is a permanent and debilitating sequel to chronic or severe airway injury, however, diseases associated with this condition are poorly defined. To evaluate results of diagnostic tests used to document bronchiectasis and to characterize underlying or concurrent disease processes. Eighty-six dogs that had bronchoscopy performed and a diagnosis of bronchiectasis. Retrospective case series. Radiographs, computed tomography, and bronchoscopic findings were evaluated for features of bronchiectasis. Clinical diagnoses of pneumonia (aspiration, interstitial, foreign body, other), eosinophilic bronchopneumopathy (EBP), and inflammatory airway disease (IAD) were made based on results of history, physical examination, and diagnostic testing, including bronchoalveolar lavage fluid analysis and microbiology. Bronchiectasis was diagnosed in 14% of dogs (86/621) that had bronchoscopy performed. Dogs ranged in age from 0.5 to 14 years with duration of signs from 3 days to 10 years. Bronchiectasis was documented during bronchoscopy in 79/86 dogs (92%), thoracic radiology in 50/83 dogs (60%), and CT in 34/34 dogs (100%). Concurrent airway collapse was detected during bronchoscopy in 50/86 dogs (58%), and focal or multifocal mucus plugging of segmental or subsegmental bronchi was found in 41/86 dogs (48%). Final diagnoses included pneumonia (45/86 dogs, 52%), EBP (10/86 dogs, 12%) and IAD (31/86 dogs, 36%). Bacteria were isolated in 24/86 cases (28%), with Streptococcus spp, Pasteurella spp, enteric organisms, and Stenotrophomonas isolated most frequently. Bronchiectasis can be anticipated in dogs with infectious or inflammatory respiratory disease. Advanced imaging and bronchoscopy are useful in making the diagnosis and identifying concurrent respiratory disease. Copyright © 2015 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals, Inc. on behalf of the American College of Veterinary Internal Medicine.

  19. Probabilistic Logical Characterization

    DEFF Research Database (Denmark)

    Hermanns, Holger; Parma, Augusto; Segala, Roberto

    2011-01-01

    Probabilistic automata exhibit both probabilistic and non-deterministic choice. They are therefore a powerful semantic foundation for modeling concurrent systems with random phenomena arising in many applications ranging from artificial intelligence, security, systems biology to performance...... modeling. Several variations of bisimulation and simulation relations have proved to be useful as means to abstract and compare different automata. This paper develops a taxonomy of logical characterizations of these relations on image-finite and image-infinite probabilistic automata....

  20. RCRA Facility Investigation Report Texas Solid Waste Management Units Fort Bliss El Paso, Texas. Volume 1

    Science.gov (United States)

    1991-12-01

    associations: the Pintura -Dona Ana of Otero Area, New Mexico, or the Hueco-Wink of El Paso County, Texas. 1.4.6.1 Description The five soil associations...by erosion (DOA, 1981). 1 1-28 I A. si. / -Z - W0 A i~ Pintura -Dona Ana ~r~*~>~ Tome-Mimbres IFI BlTuneyBeintOnieWn Fiur v- RCRA F....i. Soil Ma...material. Although the Pintura soils are the most 3 common and most extensive soils formed in this manner, all of the soils described contain undulating and

  1. Identification and Mapping of Soils, Vegetation, and Water Resources of Lynn County, Texas, by Computer Analysis of ERTS MSS Data

    Science.gov (United States)

    Baumgardner, M. F.; Kristof, S. J.; Henderson, J. A., Jr.

    1973-01-01

    Results of the analysis and interpretation of ERTS multispectral data obtained over Lynn County, Texas, are presented. The test site was chosen because it embodies a variety of problems associated with the development and management of agricultural resources in the Southern Great Plains. Lynn County is one of ten counties in a larger test site centering around Lubbock, Texas. The purpose of this study is to examine the utility of ERTS data in identifying, characterizing, and mapping soils, vegetation, and water resources in this semiarid region. Successful application of multispectral remote sensing and machine-processing techniques to arid and seminarid land-management problems will provide valuable new tools for the more than one-third of the world's lands lying in arid-semiarid regions.

  2. The Myth of the Texas Miracle in Education

    Directory of Open Access Journals (Sweden)

    Walt Haney

    2000-08-01

    Full Text Available I summarize the recent history of education reform and statewide testing in Texas, which led to introduction of the Texas Assessment of Academic Skills (TAAS in 1990-91. A variety of evidence in the late 1990s led a number of observers to conclude that the state of Texas had made near miraculous progress in reducing dropouts and increasing achievement. The passing scores on TAAS tests were arbitrary and discriminatory. Analyses comparing TAAS reading, writing and math scores with one another and with relevant high school grades raise doubts about the reliability and validity of TAAS scores. I discuss problems of missing students and other mirages in Texas enrollment statistics that profoundly affect both reported dropout statistics and test scores. Only 50% of minority students in Texas have been progressing from grade 9 to high school graduation since the initiation of the TAAS testing program. Since about 1982, the rates at which Black and Hispanic students are required to repeat grade 9 have climbed steadily, such that by the late 1990s, nearly 30% of Black and Hispanic students were "failing" grade 9. Cumulative rates of grade retention in Texas are almost twice as high for Black and Hispanic students as for White students. Some portion of the gains in grade 10 TAAS pass rates are illusory. The numbers of students taking the grade 10 tests who were classified as "in special education" and hence not counted in schools' accountability ratings nearly doubled between 1994 and 1998. A substantial portion of the apparent increases in TAAS pass rates in the 1990s are due to such exclusions. In the opinion of educators in Texas, schools are devoting a huge amount of time and energy preparing students specifically for TAAS, and emphasis on TAAS is hurting more than helping teaching and learning in Texas schools, particularly with at-risk students, and TAAS contributes to retention in grade and dropping out. Five different sources of evidence about

  3. State Agency Applications of EOS Data in Texas

    Science.gov (United States)

    Wells, G. L.

    2001-05-01

    Texas offers a good model for the introduction of remotely sensed data products into the daily operations of state agencies by virtue of its large size and population. The diversity of the Texas landscape coupled with the long distances traveled to perform site inspections place special burdens on the land resource agencies responsible for monitoring crop conditions, water availability, environmental hazards and other natural resource issues. To assist these agencies, the Texas Synergy team has adopted a two-phase approach that incorporates framework geospatial data products designed for the broad user community with remote sensing applications developed for user-specific analyses. A key element to the success of the effort is the development of remote sensing products within a Texas Reference Frame that corresponds to the components of the high-resolution National Spatial Data Infrastructure developed by the state, such as 1-meter CIR digital orthophotographs, digital elevation models, and vector layers for hypsography, hydrography, soils, transportation and boundaries. Users accustomed to working with NSDI products can easily begin to include recently-collected EOS data presented within the same reference frame. Examples of statewide data products made available through the Texas Synergy project are AVHRR NDVI and MODIS imagery, Landsat 7 ETM+ scenes and SPOT 10-meter panchromatic image tiles. Delivery of the products involves a number of mechanisms from CD distribution to Internet FTP downloads, but increasingly relies upon Internet map services, such as ESRI's ArcIMS. Beyond release of the base imagery products, the Texas Synergy team has worked with the Texas Parks and Wildlife Department, Texas Soil and Water Conservation Board, Texas Department of Agriculture, Texas Water Development Board, National Park Service and USDA Natural Resources Conservation Service on a wide range of data applications. Throughout 1999-2000, the magnitude of drought conditions was

  4. Mitchell Energy foam fracs tight zones. [Texas

    Energy Technology Data Exchange (ETDEWEB)

    Bleakley, W.B.

    1980-12-01

    Wells that produced one billion cubic feet of gas over an 11-yr period could have produced that much in one year, according to results of recent massive foam frac jobs. Mitchell Energy and Development Corp. experienced that kind of performance from wells completed in the Cotton Valley Lime gas reservoir of Central Texas, just south of Mexia. One well, the No. 1 Stone, in Limestone County, was completed in Dec., 1969 at 11,200 ft, exposing a gross interval of 200 ft and a net pay of 26 ft. Cumulative production to early this year was approx. 578 mmcf and the well was producing at 50 to 75 mcfd through a full-open 2-in. choke with flowing tubing pressure of 640 psi. The formation was fractured in March, 1980, using foam, and present producing rate of 600 mcfd against 800-psi line pressure, in spite of a screen-out during the frac treatment that permitted only half of the designed-for one million pounds of sand to be put away. This is believed to be the first foam job at that depth, however, and the first to get 500,000 lb of sand into a fracture, using foam.

  5. Adderall abuse in Texas, 1998-2004.

    Science.gov (United States)

    Forrester, Mathias B

    2007-04-01

    Adderall is used in the treatment of attention deficit hyperactivity disorder (ADHD) in children and is subject to abuse. This study describes the patterns of Adderall abuse calls received by several poison control centers in Texas during 1998-2004. Drug abuse calls were assessed by call year and geographic location. Drug abuse calls were then compared to all other human exposure (nonabuse) calls with respect to various factors. Of all Adderall exposure calls, 12% involved abuse. The number of drug abuse calls received per year increased during the first part of 7-yr period but then declined. Male patients accounted for almost 60% of both drug abuse and nonabuse calls. Adolescent patients comprised 69% of drug abuse calls and children less than 13 yr old comprised 66% of nonabuse calls. Although the majority of both types of human exposures occurred at the patient's own residence, drug abuse calls were more likely than nonabuse calls to involve exposures at another residence (6% vs. 3%), school (22% vs. 5%) and public areas (2% vs. 0.4%). Drug abuse calls were less likely than nonabuse calls to be managed outside of a health care facility (18% vs. 51%) and to be classified as no adverse effect (23% vs. 48%). Adderall abusers are more likely to be adolescents. Adderall abuse as compared to other exposures is more likely to occur outside of the person's home and involve more serious medical outcomes.

  6. Geothermal resources, Vicksburg Formation, Texas Gulf Coast

    Energy Technology Data Exchange (ETDEWEB)

    Loucks, R.G.

    1978-01-01

    The potential for discovering geopressured geothermal reservoirs in the Vicksburg Formation is limited to Hidalgo County along the Lower Texas Gulf Coast. In Hidalgo County, an area of approximately 385 square miles (designated the Vicksburg Fairway) contains up to 1,300 feet of geopressured sandstones with fluid temperatures greater than 300/sup 0/F. In-place effective permeability, however, averages less than 1 millidarcy in the Vicksburg sandstones because of fine grain size and extensive late carbonate cementation. Also, areal extent of individual reservoirs is limited in a dip direction by growth faults and in a strike direction by the lenticular morphology of the sandstone bodies. In conclusion, under the present specifications set for a geothermal fairway, the Vicksburg has minimal potential because of low reservoir deliverability, which is constrained by low permeability and somewhat limited reservoir continuity. If future tests indicate that lower permeabilities are acceptable, the Vicksburg Fairway should be reconsidered because of the presence of extremely thick sandstone bodies.

  7. Synergistic suppression of autoimmune arthritis through concurrent treatment with tolerogenic DC and MSC.

    Science.gov (United States)

    Li, Rong; Zhang, Yujuan; Zheng, Xiufen; Peng, Shanshan; Yuan, Keng; Zhang, Xusheng; Min, Weiping

    2017-02-23

    Rheumatoid arthritis (RA) is an autoimmune disease characterized by progressive immune-mediated joint deterioration. Current treatments are not antigen specific and are associated with various adverse. We have previously demonstrated that tolerogenic dendritic cells (Tol-DC) are potent antigen-specific immune regulators, which hold great promise in immunotherapy of autoimmune diseases. In this study, we aimed to develop new immunotherapy by combining Tol-DC and mesenchymal stem cells (MSC). We demonstrated that RelB gene silencing resulted in generation of Tol-DC that suppressed T cell responses and selectively promoted Treg generation. The combination of MSC synergized the tolerogenic capacity of Tol-DC in inhibition of T cell responses. In murine collagen-induced arthritis (CIA) model, we demonstrated that progression of arthritis was inhibited with administration of RelB gene-silenced Tol-DC or MSC. This therapeutic effect was remarkably enhanced with concurrent treatment of combination Tol-DC and MSC as demonstrated by improved clinical symptoms, decreased clinical scores and attenuated joint damage. These therapeutic effects were associated with suppression of CII-specific T cell responses, polarization of Th and inhibition of proinflammatory cytokines, and reduced cartilage degeneration. This study for the first time demonstrates a new approach to treat autoimmune inflammatory joint disease with concurrent treatment of RelB gene-silenced Tol-DC and MSC.

  8. Can concurrent teaching promote equal biomechanical adaptations at front crawl and backstroke swimming?

    Science.gov (United States)

    Costa, Mário J; Barbosa, Tiago M; Morais, Jorge E; Miranda, Sérgio; Marinho, Daniel A

    2017-01-01

    The biomechanical adaptations in front crawl and backstroke swimming, as influenced by the implementation of a concurrent teaching programme were analysed. Sixteen participants (19.75 ± 1.13 years) underwent a 30 weeks intervention characterized by an increasing complexity to accomplish motor skills in the following order: (i) lower limbs propulsion; (ii) lower limbs propulsion synchronized with breathing cycle; (iii) lower limbs propulsion synchronized with one upper limb action; (iv) lower limbs propulsion synchronized with both breathing cycle and one upper limb action; (v) full swimming stroke; (vi) motor trajectory of the arms stroke. Performance and biomechanics were measured at front crawl and backstroke during three time points throughout the programme. There were improvements in performance over time at front crawl (21.49 s to 19.99 s, pfront crawl (1.13 m/s to 1.22 m/s, pfront crawl (0.13 to 0.12%, p = 0.02). There was also a moderate-high inter-subject variability in response to the programme. These findings prove that a programme of 30 weeks teaching concurrently front crawl and backstroke is effective to promote similar biomechanical adaptations in low-tier swimmers. However, each subject shows an individual response to better adapt the biomechanical actions and to reach a higher level of expertise.

  9. An Intensional Concurrent Faithful Encoding of Turing Machines

    Directory of Open Access Journals (Sweden)

    Thomas Given-Wilson

    2014-10-01

    Full Text Available The benchmark for computation is typically given as Turing computability; the ability for a computation to be performed by a Turing Machine. Many languages exploit (indirect encodings of Turing Machines to demonstrate their ability to support arbitrary computation. However, these encodings are usually by simulating the entire Turing Machine within the language, or by encoding a language that does an encoding or simulation itself. This second category is typical for process calculi that show an encoding of lambda-calculus (often with restrictions that in turn simulates a Turing Machine. Such approaches lead to indirect encodings of Turing Machines that are complex, unclear, and only weakly equivalent after computation. This paper presents an approach to encoding Turing Machines into intensional process calculi that is faithful, reduction preserving, and structurally equivalent. The encoding is demonstrated in a simple asymmetric concurrent pattern calculus before generalised to simplify infinite terms, and to show encodings into Concurrent Pattern Calculus and Psi Calculi.

  10. Triangle inequalities in coherence measures and entanglement concurrence

    Science.gov (United States)

    Dai, Yue; You, Wenlong; Dong, Yuli; Zhang, Chengjie

    2017-12-01

    We provide detailed proofs of triangle inequalities in coherence measures and entanglement concurrence. If a rank-2 state ϱ can be expressed as a convex combination of two pure states, i.e., ϱ =p1| ψ1〉〈 ψ1|+ p2| ψ2〉〈 ψ2| , a triangle inequality can be established as |E (|Ψ1〉 )-E (|Ψ2〉 )|≤E (ϱ ) ≤E (|Ψ1〉 )+E (|Ψ2〉 ) , where | Ψ1〉= √{p1}|ψ1〉 and | Ψ2〉= √{p2}|ψ2〉 ; E can be considered either coherence measures or entanglement concurrence. This inequality displays mathematical beauty for its similarity to the triangle inequality in plane geometry. An illustrative example is given after the proof.

  11. A familial concurrence of schizophrenia and Gaucher's disease

    Directory of Open Access Journals (Sweden)

    Siomos Konstantinos E

    2007-12-01

    Full Text Available Abstract Background Gaucher's disease (GD is the most frequently encountered lysosomal storage disease. Here, we describe and discuss the observed concurrence of schizophrenia and Gaucher's disease in two siblings. Methods Presentation of a family with two siblings with Gaucher's disease. Results In a six-member family, the first son suffers from schizophrenia, while the third and fourth sons suffer from the Gaucher's disease (type 1 non-neuronopathic. The parents and the second son do not suffer from either illness. Conclusion The concurrence of schizophrenia and Gaucher's disease in the same family is an unusual phenomenon. The literature regarding this coincidence is limited, despite the fact that patients with Gaucher's disease have one or two mutated alleles, considered to be a risk factor leading to conditions such as Dementia, Parkinson's disease and schizophrenia.

  12. Winning Concurrent Reachability Games Requires Doubly-Exponential Patience

    DEFF Research Database (Denmark)

    Hansen, Kristoffer Arnsfelt; Koucký, Michal; Miltersen, Peter Bro

    2009-01-01

    that are less than (isin2/(1 - isin))2n-2 . Also, even to achieve the value within say 1 - 2-n/2, doubly exponentially small behavior probabilities in the number of positions must be used. This behavior is close to worst case: We show that for any such game and 0 ...We exhibit a deterministic concurrent reachability game PURGATORYn with n non-terminal positions and a binary choice for both players in every position so that any positional strategy for Player 1 achieving the value of the game within given isin ... with all non-zero behavior probabilities being 20(n) at least isin2O(n). As a corollary to our results, we conclude that any (deterministic or nondeterministic) algorithm that given a concurrent reachability game explicitly manipulates isin-optimal strategies for Player 1 represented in several standard...

  13. Concurrent periosteal chondroma and enchondroma of the fibula mimicking chondrosarcoma

    Energy Technology Data Exchange (ETDEWEB)

    Yamamoto, Yasuhiro; Washimi, Osuke; Yamada, Harumoto; Washimi, Yuki; Itoh, Masato [Fujita Health University, Department of Orthopedic Surgery, Toyoake City, Aichi (Japan); Kuroda, Makoto [Fujita Health University, Department of Pathology, Toyoake City, Aichi (Japan)

    2006-05-15

    We present a rare concurrence of enchondroma and periosteal chondroma in the right distal fibula that mimicked chondrosarcoma in a 13-year-old boy. Radiographs and CT scans showed a periosteal lesion producing saucerization without periosteal reaction and calcification in the distal metaphysis of the right fibula. MRI showed an intramedullary lesion adjacent to the periosteal lesion, although it was invisible at CT. There was no cortical breach on imaging and gross examination. Because both lesions represented benign cartilaginous tumors on histology, concurrent periosteal chondroma and enchondroma of the fibula was diagnosed. This combination in the same bone in a patient without enchondromatosis is exceedingly rare. Such imaging features may be confused with those of chondrosarcoma. (orig.)

  14. Engineering Bereitschaft as an enabler for Concurrent Engineering

    DEFF Research Database (Denmark)

    Christiansen, Kåre; Vesterager, Johan

    1999-01-01

    Industrial companies observe a general trend towards more customised products and shorter product life cycles. Furthermore, the market demands shorter lead-time and high-quality products at a competitive price. Concurrent Engineering address these challenges. Product modelling is a key aspect...... that industrial companies should develop an engineering development Bereitschaft (preparatory engineering knowledge) as an approach to Concurrent Engineering and product modelling. To develop such an engineering development Bereitschaft, a company must develop company generic product models.This paper....... The problem is that industrial companies are not in the software business. But successful application of product modelling in industry requires that domain engineers should drive the modelling activities (not programming). This paper will discuss why domain engineers as model managers is a necessary...

  15. Concurrent Bursty Behavior of Social Sensors in Sporting Events

    CERN Document Server

    Takeichi, Yuki; Suzuki, Reji; Arita, Takaya

    2014-01-01

    The advent of social media expands our ability to transmit information and connect with others instantly, which enables us to behave as "social sensors." Here, we studied concurrent bursty behavior of Twitter users during major sporting events to determine their function as social sensors. We show that the degree of concurrent bursts in tweets (posts) and retweets (re-posts) works as a good indicator of winning or losing a game. More specifically, our tweet analysis of Japanese professional baseball games in 2013 revealed that social sensors can immediately show reactions to positive and negative events through bursts of tweets, but that positive events are more likely to induce a subsequent burst of retweets. These findings were also confirmed in an analysis of the 2014 FIFA World Cup final. We further showed active interactions among social sensors by constructing retweet networks during a baseball game. The resulting networks commonly exhibited user clusters depending on the baseball team, with a scale-fre...

  16. Reducing Concurrency Bottlenecks in Parallel I/O Workloads

    Energy Technology Data Exchange (ETDEWEB)

    Manzanares, Adam C. [Los Alamos National Laboratory; Bent, John M. [Los Alamos National Laboratory; Wingate, Meghan [Los Alamos National Laboratory

    2011-01-01

    To enable high performance parallel checkpointing we introduced the Parallel Log Structured File System (PLFS). PLFS is middleware interposed on the file system stack to transform concurrent writing of one application file into many non-concurrently written component files. The promising effectiveness of PLFS makes it important to examine its performance for workloads other than checkpoint capture, notably the different ways that state snapshots may be later read, to make the case for using PLFS in the Exascale I/O stack. Reading a PLFS file involved reading each of its component files. In this paper we identify performance limitations on broader workloads in an early version of PLFS, specifically the need to build and distribute an index for the overall file, and the pressure on the underlying parallel file system's metadata server, and show how PLFS's decomposed components architecture can be exploited to alleviate bottlenecks in the underlying parallel file system.

  17. Construct and concurrent validity of the Korean Career Indecision Inventory.

    Science.gov (United States)

    Tak, Jinkook

    2006-04-01

    Construct and concurrent validity of the Korean Career Indecision Inventory were examined. Data were collected from 238 South Korean college students. A confirmatory factor analysis supported the original five-factor model. As hypothesized, scores were significantly correlated with various variables such as scores on the Korean versions of the Career Decision Scale (r =.49), the Vocational Identity Scale in My Vocational Situation (r=-.63), the Career Decision-making Self-efficacy Scale (r=-.47), and Negative Affectivity (r=.37). These results support construct validity inventory. Students who indicated they were undecided about their careers had significantly higher scores than those who indicated they had decided on a career, supporting concurrent validity. Implications and limitations are discussed.

  18. Patterns of precipitation and soil moisture extremes in Texas, US: A complex network analysis

    Science.gov (United States)

    Sun, Alexander Y.; Xia, Youlong; Caldwell, Todd G.; Hao, Zengchao

    2018-02-01

    Understanding of the spatial and temporal dynamics of extreme precipitation not only improves prediction skills, but also helps to prioritize hazard mitigation efforts. This study seeks to enhance the understanding of spatiotemporal covariation patterns embedded in precipitation (P) and soil moisture (SM) by using an event-based, complex-network-theoretic approach. Events concurrences are quantified using a nonparametric event synchronization measure, and spatial patterns of hydroclimate variables are analyzed by using several network measures and a community detection algorithm. SM-P coupling is examined using a directional event coincidence analysis measure that takes the order of event occurrences into account. The complex network approach is demonstrated for Texas, US, a region possessing a rich set of hydroclimate features and is frequented by catastrophic flooding. Gridded daily observed P data and simulated SM data are used to create complex networks of P and SM extremes. The uncovered high degree centrality regions and community structures are qualitatively in agreement with the overall existing knowledge of hydroclimate extremes in the study region. Our analyses provide new visual insights on the propagation, connectivity, and synchronicity of P extremes, as well as the SM-P coupling, in this flood-prone region, and can be readily used as a basis for event-driven predictive analytics for other regions.

  19. Improving the concurrent validity of the Bender-Gestalt test.

    Science.gov (United States)

    McCann, R; Plunkett, R P

    1984-06-01

    30 individuals diagnosed as showing Korsakoff's psychosis, 30 as paranoid schizophrenics and 30 as normal controls, each had the Bender-Gestalt test administered by four different methods. All four showed good concurrent validity. The so-called perfect method which requires the individual to compare his drawings on the standard administration with the Bender-Gestalt test cards and to redraw the design eliminating errors, showed some potential for improving the predictive validity of the Bender-Gestalt test.

  20. Pitch representations in the auditory nerve: two concurrent complex tones.

    Science.gov (United States)

    Larsen, Erik; Cedolin, Leonardo; Delgutte, Bertrand

    2008-09-01

    Pitch differences between concurrent sounds are important cues used in auditory scene analysis and also play a major role in music perception. To investigate the neural codes underlying these perceptual abilities, we recorded from single fibers in the cat auditory nerve in response to two concurrent harmonic complex tones with missing fundamentals and equal-amplitude harmonics. We investigated the efficacy of rate-place and interspike-interval codes to represent both pitches of the two tones, which had fundamental frequency (F0) ratios of 15/14 or 11/9. We relied on the principle of scaling invariance in cochlear mechanics to infer the spatiotemporal response patterns to a given stimulus from a series of measurements made in a single fiber as a function of F0. Templates created by a peripheral auditory model were used to estimate the F0s of double complex tones from the inferred distribution of firing rate along the tonotopic axis. This rate-place representation was accurate for F0s greater, similar900 Hz. Surprisingly, rate-based F0 estimates were accurate even when the two-tone mixture contained no resolved harmonics, so long as some harmonics were resolved prior to mixing. We also extended methods used previously for single complex tones to estimate the F0s of concurrent complex tones from interspike-interval distributions pooled over the tonotopic axis. The interval-based representation was accurate for F0s less, similar900 Hz, where the two-tone mixture contained no resolved harmonics. Together, the rate-place and interval-based representations allow accurate pitch perception for concurrent sounds over the entire range of human voice and cat vocalizations.

  1. A distributed file service based on optimistic concurrency control

    OpenAIRE

    Mullender, Sape J.; Tanenbaum, Andrew S.

    1985-01-01

    The design of a layered file service for the Amoeba Distributed System is discussed, on top of which various applications can easily be intplemented. The bottom layer is formed by the Amoeba Block Services, responsible for implementing stable storage and repficated, highly available disk blocks. The next layer is formed by the Amoeba File Service which provides version management and concurrency control for tree-structured files. On top of this layer, the appficafions, ranging from databases ...

  2. Concurrent engineering and product models in seafood companies

    DEFF Research Database (Denmark)

    Jonsdottir, Stella; Vesterager, Johan; Børresen, Torger

    1998-01-01

    Concurrent Engineering (CE) can provide an improved approach to product development for extending the lines of seafood products. Information technology (IT) support tools based on product models can provide an integrated and simultaneous approach for specifying new recipes. The seafood industry can...... techniques. It is anticipated that other food industries can also benefit from the more simultaneous development approach. (C) 1999 Elsevier Science Ltd. All rights reserved...

  3. Concurrent Mucosal Melanoma and Angiofibroma of the Nose

    OpenAIRE

    Hwang, Jae Hyung; Ha, Jin Bu; Lee, Junguee; Lee, Joohyung

    2016-01-01

    Malignant melanoma rarely develops in the paranasal sinuses, and generally has a poor prognosis. However, mucosal melanoma can masquerade both clinically and histopathologically as a benign lesion, rendering accurate early diagnosis difficult. On the other hand, angiofibroma, a benign tumor, is more easily diagnosed than a mucosal melanoma, because the former exhibits specific histopathological features. No cases of concurrent angiofibroma and mucosal melanoma have been reported to date. We d...

  4. Glucagonoma syndrome: survival 21 years with concurrent liver metastases.

    Science.gov (United States)

    Dourakis, Spyros P; Alexopoulou, Alexandra; Georgousi, Kleoniki K; Delladetsima, Johanna K; Tolis, George; Archimandritis, Athanasios J

    2007-09-01

    A patient who survived for 21 years since initial discovery of glucagonoma with concurrent liver metastases is described. Psychiatric symptoms, weight loss, necrolytic migratory erythema, diarrhea, and diabetes mellitus developed gradually after diagnosis of the tumor. No specific treatment was administered. The longevity of this patient may be related to the slow tumor growth expressed histologically by ischemic necrosis of the malignant cells and in imaging by extensive tumor calcifications, a very rare finding in this type of the tumor.

  5. A multiplatform interpreter to introduce structured and concurrent programming

    OpenAIRE

    Depetris, Beatriz O.; Feierherd, Guillermo Eugenio; Tejero, Germán; Aguil Mallea, Daniel

    2012-01-01

    The process of teaching and learning computer programming has always been a challenge for students and teachers. Throughout time, the challenge has become tougher because now the concepts related to concurrent programming must be added to the traditional concepts of programming. The tools that show the performance of algorithms have been of great help, although they must be used carefully. This article describes the development and use of an update of the Visual Da Vinci (an environment used ...

  6. Concurrent Programming Using Actors: Exploiting Large-Scale Parallelism,

    Science.gov (United States)

    1985-10-07

    ORGANIZATION NAME AND ADDRESS 10. PROGRAM ELEMENT. PROJECT. TASK* Artificial Inteligence Laboratory AREA Is WORK UNIT NUMBERS 545 Technology Square...D-R162 422 CONCURRENT PROGRMMIZNG USING f"OS XL?ITP TEH l’ LARGE-SCALE PARALLELISH(U) NASI AC E Al CAMBRIDGE ARTIFICIAL INTELLIGENCE L. G AGHA ET AL...RESOLUTION TEST CHART N~ATIONAL BUREAU OF STANDA.RDS - -96 A -E. __ _ __ __’ .,*- - -- •. - MASSACHUSETTS INSTITUTE OF TECHNOLOGY ARTIFICIAL

  7. Concurrent endocrine and other surgical procedures: an institutional experience.

    Science.gov (United States)

    Morris, Rachel; Yen, Tina W F; Doffek, Kara; Carr, Azadeh A; Wilson, Stuart D; Evans, Douglas B; Wang, Tracy S

    2017-05-01

    The number of endocrine procedures, specifically parathyroidectomy, thyroidectomy, and adrenalectomy, being performed is increasing. There is a paucity of literature on the feasibility of combining these procedures with other surgical procedures. Therefore, the aim of this study was to determine the effect of performing concurrent surgical procedures on postoperative outcomes. This is a single institution retrospective review of multiple prospectively maintained databases of patients who underwent elective thyroidectomy, parathyroidectomy, and/or adrenalectomy in combination with another procedure. The other procedures included soft tissue, breast or hernia, abdominal major, abdominal minor, cervical, and "other". Demographics, operative details, length-of-stay, and 30-d outcomes were reviewed. "Endocrine-specific" complications included recurrent laryngeal nerve injury, hypoparathyroidism, cervical wound infection, hematoma, and other. The cohort comprised 104 patients. Overall, 19 (18%) patients had 21 complications, including endocrine-specific complications in eleven (11%) patients. These eleven complications included recurrent laryngeal nerve injury (n = 3; 3%), hematoma (n = 2; 2%), wound infection (n = 1; 1%), transient hypoparathyroidism (n = 2; 2%), and other (n = 3; 3%). The remaining complications included three (3%) general complications, six (6%) patients with complications related to the concurrent procedure, and one patient who underwent an open adrenalectomy and hysterectomy and developed a midline wound dehiscence, which could not be specifically attributed to either procedure. Less than 5% of patients undergoing a surgical endocrine procedure underwent a concurrent procedure, ranging from soft tissue to major abdominal. Short-term endocrine-specific complications were managed safely, suggesting that concurrent procedures can be considered, with minimal effect on patient outcomes. Copyright © 2016 Elsevier Inc. All rights reserved.

  8. Rain: A New Concurrent Process-Oriented Programming Language

    OpenAIRE

    Brown, Neil C.C.

    2006-01-01

    This paper details the design of a new concurrent process-oriented programming language, Rain. The language borrows heavily from occam-p and C++ to create a new language based on process-oriented programming, marrying channel-based communication, a clear division between statement and expression, and elements of functional programming. An expressive yet simple type system, coupled with templates, underpins the language. Modern features such as Unicode support and 64-bit integers are included ...

  9. Constructive Alignment for Teaching Model-Based Design for Concurrency

    DEFF Research Database (Denmark)

    Brabrand, Claus

    2007-01-01

    "How can we make sure our students learn what we want them to?" is the number one question in teaching. This paper is intended to provide the reader with: i) a general answer to this question based on the theory of constructive alignment by John Biggs; ii) relevant insights for bringing this answer...... from theory to practice; and iii) specific insights and experiences from using constructive alignment in teaching model-based design for concurrency (as a case study in implementing alignment)....

  10. UMTRA Project water sampling and analysis plan, Falls City, Texas

    Energy Technology Data Exchange (ETDEWEB)

    1994-02-01

    Surface remedial action will be completed at the Falls City, Texas, Uranium Mill Tailings Remedial Action Project site in the spring of 1994. Results of water sampling activity from 1989 to 1993 indicate that ground water contamination occurs primarily in the Deweesville/Conquista aquifer (the uppermost aquifer) and that the contamination migrates along four distinct contaminant plumes. Contaminated ground water from some wells in these regions has significantly elevated levels of aluminum, arsenic, cadmium, manganese, molybdenum, selenium, sulfate, and uranium. Contamination in the Dilworth aquifer was identified in monitor well 977 and in monitor well 833 at the southern edge of former tailings pile 4. There is no evidence that surface water quality in Tordilla and Scared Dog Creeks is impacted by tailings seepage. The following water sampling activities are planned for calendar year 1994: (1) Ground water sampling from 15 monitor wells to monitor the migration of the four major contaminant plumes within the Deweesville/Conquista aquifer. (2) Ground water sampling from five monitor wells to monitor contaminated and background ground water quality conditions in the Dilworth aquifer. Because of disposal cell construction activities, all plume monitor wells screened in the Dilworth aquifer were abandoned. No surface water locations are proposed for sampling. The monitor well locations provide a representative distribution of sampling points to characterize ground water quality and ground water flow conditions in the Deweesville/Conquista aquifer downgradient of the disposal cell. The list of analytes has been modified with time to reflect constituents currently related to uranium processing activities and natural uranium mineralization. Water sampling is normally conducted biannually in late summer and midwinter.

  11. Water Quality Monitoring of Texas Offshore Artificial Reefs

    Science.gov (United States)

    Bodkin, L.; Lee, M.

    2016-02-01

    Artificial reefs provide a habitat for marine organisms and abundant ecosystem services. In reef ecosystems, several organisms tolerate a small range of physical water properties and any change in water quality could affect their survival. Therefore, monitoring how these artificial reefs respond to environmental changes due to natural and anthropogenic causes is essential for management. The U.S. Geological Survey (USGS) and the Texas Parks and Wildlife Department (TPWD-ARP) are collaboratively monitoring artificial reefs located in the Gulf of Mexico in order to understand the productivity of these ecosystems, and their response to environmental changes. To accomplish this, TPWD use established protocols for biological monitoring, and the USGS collects physical and chemical water quality data. The selected artificial reef sites are located nearby national marine sanctuaries to facilitate comparison to natural reefs, but also provide enough spatial variability for comparison purposes. Additionally, the sites differ in artificial reef foundation providing an opportunity to evaluate variability in reefing structure. Physical water quality parameter profiles are collected to: (1)document variability of water quality between sites, (2)characterize the environmental conditions at the artificial reefs, and (3)monitor the reefs for potential impacts from anthropogenic stresses. Monitors have also been deployed at selected locations between trips to obtain a continuous record of physical water quality parameters. Water quality samples for nutrients, chlorophyll a, Pheophytin a, and an assortment of metal analytes are collected by USGS divers at the top of each artificial reef structure. Collecting long-term monitoring data with targeted sampling for constituents of concern at artificial reefs may provide a foundation to determine their current status and establish trends that can be used for future management. A record of hydrographic variables could be used to explain and

  12. Multiple concurrent collagenase clostridium histolyticum injections to dupuytren’s cords: an exploratory study

    Directory of Open Access Journals (Sweden)

    Coleman Stephen

    2012-04-01

    Full Text Available Abstract Background Dupuytren’s contracture (DC is a progressive fibroproliferative disorder characterized by development of nodules and collagen cords within the palmar fascia of the hand. Collagenase clostridium histolyticum (CCH is currently approved in adults with DC for the nonsurgical treatment of a single palpable cord during a 30-day treatment cycle. This open-label pilot study was designed to examine the safety, efficacy, and multiple-dose pharmacokinetics of injecting two cords (affected joints with multiple doses of CCH concurrently into the same hand in subjects with DC and multiple contractures. Methods Twelve subjects with DC were enrolled, each with ≥3 contractures caused by palpable cords. Efficacy assessments were taken 30 days after treatment and adverse events (AEs were recorded throughout. In the first treatment period, all subjects were injected with a single dose of CCH (0.58 mg into a single cord. The same subjects entered a second treatment period 30 days later, where two different cords (affected joints were injected concurrently on the same hand. A finger extension procedure was performed 24 hours after each administration of CCH to disrupt the enzymatically weakened cord. Results For metacarpophalangeal (MP joints, mean contracture reduction per joint treated was 29.0 ± 20.7 degrees following single injection vs 30.3 ± 10.9 degrees per treated joint following multiple injections. For proximal interphalangeal (PIP joints, mean reduction in contracture was 30.7 ± 21.1 and 22.1 ± 4.9 degrees per treated joint, respectively, for the two periods. All patients (100% were either “quite satisfied” or “very satisfied” following either treatment cycle. The most common treatment-related AEs were edema peripheral, contusion, and pain in the treated extremity; the differences in severity for local effects of the injections were minimal between treatment periods. No serious treatment-related AEs

  13. Retroactive Streaming Fails to Improve Concurrent Vowel Identification.

    Directory of Open Access Journals (Sweden)

    Eugene J Brandewie

    Full Text Available The sequential organization of sound over time can interact with the concurrent organization of sounds across frequency. Previous studies using simple acoustic stimuli have suggested that sequential streaming cues can retroactively affect the perceptual organization of sounds that have already occurred. It is unknown whether such effects generalize to the perception of speech sounds. Listeners' ability to identify two simultaneously presented vowels was measured in the following conditions: no context, a preceding context stream (precursors, and a following context stream (postcursors. The context stream was comprised of brief repetitions of one of the two vowels, and the primary measure of performance was listeners' ability to identify the other vowel. Results in the precursor condition showed a significant advantage for the identification of the second vowel compared to the no-context condition, suggesting that sequential grouping mechanisms aided the segregation of the concurrent vowels, in agreement with previous work. However, performance in the postcursor condition was significantly worse compared to the no-context condition, providing no evidence for an effect of stream segregation, and suggesting a possible interference effect. Two additional experiments involving inharmonic (jittered vowels were performed to provide additional cues to aid retroactive stream segregation; however, neither manipulation enabled listeners to improve their identification of the target vowel. Taken together with earlier studies, the results suggest that retroactive streaming may require large spectral differences between concurrent sources and thus may not provide a robust segregation cue for natural broadband sounds such as speech.

  14. The Use of Aspects to Simplify Concurrent Programming

    Directory of Open Access Journals (Sweden)

    Michał Negacz

    2014-06-01

    Full Text Available Developers who create multi-threaded programs must pay attention to ensuring safe implemen- tations that avoid problems and prevent introduction of a system in an inconsistent state. To achieve this objective programming languages offer more and more support for the programmer by syntactic structures and standard libraries. Despite these enhancements, multi-threaded pro- gramming is still generally considered to be difficult. The aim of our study was the analysis of existing aspect oriented solutions, which were designed to simplify concurrent programming, propose improvements to these solutions and examine influence of concurrent aspects on complexity of programs. Improved solutions were compared with existing by listing differing characteristics. Then we com- pared classical concurrent applications with their aspect oriented equivalents using metrics. Values of 2 metrics (from 7 considered decreased after using aspect oriented solutions. Values of 2 other metrics decreased or remained at the same level. The rest behaved unstably depending on the problem. No metric reported increase of complexity in more than one aspect oriented version of program from set. Our results indicate that the use of aspects does not increase the complexity of a program and in some cases application of aspects can reduce it.

  15. Caffeine supplementation affects the immunometabolic response to concurrent training.

    Science.gov (United States)

    Rossi, Fabrício Eduardo; Panissa, Valéria Leme Gonçalves; Monteiro, Paula Aulves; Gerosa-Neto, José; Caperuto, Érico Chagas; Cholewa, Jason Michael; Zagatto, Alessandro Moura; Lira, Fábio Santos

    2017-04-01

    The aim of the present study was to investigate the effects of caffeine (CAF) and carbohydrate (CHO) intake on strength performance and its metabolic and inflammatory responses during concurrent training. Seven active males ingested a double-placebo (P), CAF (capsule 5 mg/kg) or CHO (20% maltodextrin solution) supplementation before strength exercise. Participants performed three randomized sessions of 5,000-m high-intensity intermittent aerobic exercise at maximal intensity followed by strength exercise, performing after the P, CHO, and CAF intake. The blood samples were collected before (pre) and immediately after concurrent strength exercise (post). We found a similar number of repetitions and total volume in all supplementation groups. There was a main effect of time on glucose, lactate, and interleukin (IL)-6 (P<0.05). When compared the changes between groups (postvalues minus prevalues), there was lower glucose in CAF group when compared to CHO group (CAF= 5.0±10.4 vs. CHO=27.8±20 vs. P=15.1±14, P=0.031) and higher IL-6 levels (CAF=11.9±9.2 vs. CHO=-2.4±1.7 vs. P=4.3± 11.7, P=0.017). There was significant interaction for glucose and lactate (P<0.001). In conclusion, CAF and CHO intake did not improve strength performance during concurrent strength training in active males. However, CAF affected immunometabolic responses.

  16. Sensitization to dimethyl fumarate with multiple concurrent patch test reactions.

    Science.gov (United States)

    Lammintausta, Kaija; Zimerson, Erik; Winhoven, Sandra; Susitaival, Päivikki; Hasan, Taina; Gruvberger, Birgitta; Williams, Jason; Beck, Michael; Bruze, Magnus

    2010-02-01

    Chairs and sofas imported from China to Europe were shown to contain dimethyl fumarate (DMF), a sensitizing, volatile chemical. Many of the sensitized patients also had positive patch test reactions to acrylates. To analyse the occurrence and strength of DMF sensitization and the appearance of concomitant reactions. Patch testing with DMF in concentrations of 0.1-0.00001% was carried out in 37 patients. Diethyl fumarate (DEF), diethyl maleate (DEM), dimethyl maleate (DMM), ethyl acrylate (EA), methyl acrylate (MA), and methyl methacrylate (MMA) were also tested with a dilution series at equimolar concentrations. The lowest concentration of DMF eliciting a reaction varied between 0.0001% and 0.1% and all but four patients reacted concurrently to DEF. DEM elicited positive patch test reactions in 21/37 patients and DMM reactions were seen in all 9 patients tested. EA elicited positive reactions in 13/37 patients and a positive MA reaction was seen in 7/37 patients, 2 of whom also reacted to MMA. The strength of the sensitization to DMF showed variation and concurrent reactions were common. Concurrent reactions to (meth)acrylates were seen in patients, who reacted to lower (0.001% or less) DMF concentration probably elicited by cross-reactivity.

  17. Exploiting communication concurrency on high performance computing systems

    Energy Technology Data Exchange (ETDEWEB)

    Chaimov, Nicholas [Univ. of Oregon, Eugene, OR (United States); Ibrahim, Khaled Z. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Williams, Samuel [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Iancu, Costin [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2015-01-01

    Although logically available, applications may not exploit enough instantaneous communication concurrency to maximize hardware utilization on HPC systems. This is exacerbated in hybrid programming models such as SPMD+OpenMP. We present the design of a "multi-threaded" runtime able to transparently increase the instantaneous network concurrency and to provide near saturation bandwidth, independent of the application configuration and dynamic behavior. The runtime forwards communication requests from application level tasks to multiple communication servers. Our techniques alleviate the need for spatial and temporal application level message concurrency optimizations. Experimental results show improved message throughput and bandwidth by as much as 150% for 4KB bytes messages on InfiniBand and by as much as 120% for 4KB byte messages on Cray Aries. For more complex operations such as all-to-all collectives, we observe as much as 30% speedup. This translates into 23% speedup on 12,288 cores for a NAS FT implemented using FFTW. We also observe as much as 76% speedup on 1,500 cores for an already optimized UPC+OpenMP geometric multigrid application using hybrid parallelism.

  18. Programming Models for Concurrency and Real-Time

    Science.gov (United States)

    Vitek, Jan

    Modern real-time applications are increasingly large, complex and concurrent systems which must meet stringent performance and predictability requirements. Programming those systems require fundamental advances in programming languages and runtime systems. This talk presents our work on Flexotasks, a programming model for concurrent, real-time systems inspired by stream-processing and concurrent active objects. Some of the key innovations in Flexotasks are that it support both real-time garbage collection and region-based memory with an ownership type system for static safety. Communication between tasks is performed by channels with a linear type discipline to avoid copying messages, and by a non-blocking transactional memory facility. We have evaluated our model empirically within two distinct implementations, one based on Purdue’s Ovm research virtual machine framework and the other on Websphere, IBM’s production real-time virtual machine. We have written a number of small programs, as well as a 30 KLOC avionics collision detector application. We show that Flexotasks are capable of executing periodic threads at 10 KHz with a standard deviation of 1.2us and have performance competitive with hand coded C programs.

  19. Concurrent Use of Cigarettes and Smokeless Tobacco in Minnesota

    Directory of Open Access Journals (Sweden)

    Raymond G. Boyle

    2012-01-01

    Full Text Available Cigarette smokers are being encouraged to use smokeless tobacco (SLT in locations where smoking is banned. We examined state-wide data from Minnesota to measure changes over time in the use of SLT and concurrent use of cigarettes and SLT. The Minnesota Adult Tobacco Survey was conducted four times between 1999 and 2010 and has provided state-wide estimates of cigarette smoking, SLT use and concurrent use of SLT by smokers. The prevalence of SLT was essentially unchanged through 2007, then increased significantly between 2007 and 2010 (3.1% versus 4.3%, P<0.05. Similarly, the prevalence of cigarette smokers who reported using SLT was stable then increased between 2007 and 2010 (4.4% versus 9.6%, P<0.05. The finding of higher SLT use by smokers could indicate that smokers in Minnesota are in an experimental phase of testing alternative products as they adjust to recent public policies restricting smoking in public places. The findings are suggestive that some Minnesota smokers are switching to concurrent use of cigarettes and SLT. Future surveillance reports will be necessary to confirm the results.

  20. Neighborhood Hispanic composition and depressive symptoms among Mexican-descent residents of Texas City, Texas.

    Science.gov (United States)

    Shell, Alyssa Marie; Peek, M Kristen; Eschbach, Karl

    2013-12-01

    Substantial research shows that increased Hispanic neighborhood concentration is associated with several beneficial health outcomes including lower adult mortality, better self-rated health, and fewer respiratory problems. Literature on the relationship of Hispanic composition and depressive symptoms is more equivocal. In addition, few studies have directly investigated hypothesized mechanisms of this relationship. This study uses data from a probability sample of 1238 Mexican-descent adults living in 48 neighborhoods in Texas City, Texas. Multilevel regression models investigate whether Hispanic neighborhood composition is associated with fewer depressive symptoms. This study also investigates whether social support, perceived discrimination, and perceived stress mediate or moderate the relationship, and whether results differ by primary language used at home. We find that individuals living in high Hispanic composition neighborhoods experience fewer depressive symptoms than individuals in low Hispanic composition neighborhoods. In addition, we find that these beneficial effects only apply to respondents who speak English. Social support, perceived discrimination, and perceived stress mediate the Hispanic composition-depressive symptoms relationship. In addition, discrimination and stress moderate the relationship between Hispanic composition and depressive symptoms. Our findings support theories linking higher neighborhood Hispanic composition and better mental health, and suggest that Spanish language use, social support, discrimination and stress may play important roles in the Hispanic composition-depressive symptoms relationship. Copyright © 2013 Elsevier Ltd. All rights reserved.

  1. Distribution and habitat associations of juvenile Common Snook in the lower Rio Grande, Texas

    Science.gov (United States)

    Huber, Caleb G.; Grabowski, Timothy B.; Patino, Reynaldo; Pope, Kevin L.

    2014-01-01

    Common Snook Centropomus undecimalis were once abundant off the Texas coast, but these populations are now characterized by low abundance and erratic recruitment. Most research concerning Common Snook in North America has been conducted in Florida and very little is known about the specific biology and habitat needs of Common Snook in Texas. The primary objective of this study was to describe the habitat use patterns of juvenile Common Snook and their role in the fish assemblage in the lower portion of the Rio Grande, Texas. Secondarily, we documented the relationship between age and juvenile reproductive development. Fish were collected during January–March 2006 from the lower 51.5 km of the Rio Grande using a bottom trawl and boat-mounted electrofisher. Measurements of water quality and other habitat traits were recorded at each sampling site. We captured 225 Common Snook exclusively in freshwater habitats above river kilometer 12.9. The distribution of juvenile Common Snook was not random, but influenced primarily by turbidity and dissolved oxygen. Sex differentiation and gonadal development based on histological examination of gonads established that age-1 and age-2 Common Snook were juvenile, prepubertal males. There was no difference between the age groups in their overall distribution in the river. However, age-2 Common Snook were associated with deeper areas with faster currents, higher conductivity, and steeper banks. Overall, Common Snook in the lower Rio Grande show substantial differences in habitat use than their counterparts in other parts of the range of the species, but it is unclear whether this is due to differences in habitat availability, behavioral plasticity, or some combination thereof.

  2. Towards linking correctness conditions for concurrent objects and contextual trace refinement

    OpenAIRE

    Brijesh Dongol; Lindsay Groves

    2016-01-01

    Correctness conditions for concurrent objects describe how atomicity of an abstract sequential object may be decomposed. Many different concurrent objects and proof methods for them have been developed. However, arguments about correctness are conducted with respect to an object in isolation. This is in contrast to real-world practice, where concurrent objects are often implemented as part of a programming language library (e.g., java.util.concurrent) and are instantiated within a client prog...

  3. DARPA Concurrent Design/Concurrent Engineering Workshop Held in Key West, Florida on December 6-8, 1988

    Science.gov (United States)

    1988-12-01

    Logistics ). Through this we have developed a management structure in DoD and a large industry task force which is evolving specifications for an...concurrent engineering ’MAGIC cockpit analogy) -MT’s Integrated Test Facility aimed at supporting mf Near term concepts - builds from ENE 󈨜 & Cals & XPO ...quailty, logistics support Goal is to "design & build it right the first time" - dramatic ECO reduction DARPA CD/CE Workshop 6-8 Dec, 1988 -I- . m

  4. Cost-Effectiveness Analysis of the Residential Provisions of the 2015 IECC for Texas

    Energy Technology Data Exchange (ETDEWEB)

    Mendon, Vrushali V. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Zhao, Mingjie [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Taylor, Zachary T. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Poehlman, Eric A. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2016-02-15

    The 2015 IECC provides cost-effective savings for residential buildings in Texas. Moving to the 2015 IECC from the 2009 IECC base code is cost-effective for residential buildings in all climate zones in Texas.

  5. Coastal Bend Texas Benthic Habitat Mapping Patchy Shapefile Map - Lower Laguna Madre

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Office for Coastal Management (OCM) requested the creation of benthic habitat data along the southern Texas coast to support the Texas Seagrass Monitoring...

  6. Coastal Bend Texas Benthic Habitat Mapping Patchy Shapefile Map - Lower Laguna Madre (NODC Accession 0070784)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Coastal Services Center (CSC) requested the creation of benthic habitat data along the southern Texas coast to support the Texas Seagrass Monitoring...

  7. BLM/OCS South Texas Outer Continental Shelf (STOCS) Project Sediment Data

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The South Texas Outer Continental Shelf Project (STOCS) conducted by the University of Texas and the USGS with funding from BLM/NOAA. The USGS produced geochemical...

  8. Performance and neuromuscular adaptations following differing ratios of concurrent strength and endurance training

    OpenAIRE

    Jones, Thomas W.; Howatson, Glyn; Russell, Mark; French, Duncan N.

    2013-01-01

    The interference effect attenuates strength and hypertrophic responses when strength and endurance training are conducted concurrently; however, the influence of training frequency on these responses remain unclear when varying ratios of concurrent strength and endurance training are performed. Therefore, the purpose of the study was to examine the strength, limb girth, and neuromuscular adaptations to varying ratios of concurrent strength and endurance training. Tw...

  9. 7 CFR 1610.6 - Concurrent Bank and RUS cost-of-money loans.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 11 2010-01-01 2010-01-01 false Concurrent Bank and RUS cost-of-money loans. 1610.6..., DEPARTMENT OF AGRICULTURE LOAN POLICIES § 1610.6 Concurrent Bank and RUS cost-of-money loans. (a) The Bank makes loans, under section 408 of the Act, concurrently with RUS cost-of-money loans made under section...

  10. An Implementation of the Object-Oriented Concurrent Programming Language SINA

    NARCIS (Netherlands)

    Triphathi, Anand; Berge, Eric; Aksit, Mehmet

    SINA is an object-oriented language for distributed and concurrent programming. The primary focus of this paper is on the object-oriented concurrent programming mechanisms of SINA and their implementation. This paper presents the SINA constructs for concurrent programming and inter-object

  11. Increased apomixis expression concurrent with genetic and epigenetic variation in a newly synthesized Eragrostis curvula polyploid

    Science.gov (United States)

    Zappacosta, Diego C.; Ochogavía, Ana C.; Rodrigo, Juan M.; Romero, José R.; Meier, Mauro S.; Garbus, Ingrid; Pessino, Silvina C.; Echenique, Viviana C.

    2014-04-01

    Eragrostis curvula includes biotypes reproducing through obligate and facultative apomixis or, rarely, full sexuality. We previously generated a ``tetraploid-dihaploid-tetraploid'' series of plants consisting of a tetraploid apomictic plant (T), a sexual dihaploid plant (D) and a tetraploid artificial colchiploid (C). Initially, plant C was nearly 100% sexual. However, its capacity to form non-reduced embryo sacs dramatically increased over a four year period (2003-2007) to reach levels of 85-90%. Here, we confirmed high rates of apomixis in plant C, and used AFLPs and MSAPs to characterize the genetic and epigenetic variation observed in this plant in 2007 as compared to 2003. Of the polymorphic sequences, some had no coding potential whereas others were homologous to retrotransposons and/or protein-coding-like sequences. Our results suggest that in this particular plant system increased apomixis expression is concurrent with genetic and epigenetic modifications, possibly involving transposable elements.

  12. Hypokalemic Paralysis Complicated by Concurrent Hyperthyroidism and Chronic Alcoholism: A Case Report.

    Science.gov (United States)

    Tsai, Ming-Hsien; Lin, Shih-Hua; Leu, Jyh-Gang; Fang, Yu-Wei

    2015-09-01

    Thyrotoxic periodic paralysis (TPP) is characterized by the presence of muscle paralysis, hypokalemia, and hyperthyroidism. We report the case of a young man with paralysis of the lower extremities, severe hypokalemia, and concurrent hyperthyroidism. TPP was suspected; therefore, treatment consisting of judicious potassium (K+) repletion and β-blocker administration was initiated. However, urinary K+ excretion rate, as well as refractoriness to treatment, was inconsistent with TPP. Chronic alcoholism was considered as an alternative cause of hypokalemia, and serum K+ was restored through vigorous K repletion and the addition of K+ -sparing diuretics. The presence of thyrotoxicosis and hypokalemia does not always indicate a diagnosis of TPP. Exclusion of TPP can be accomplished by immediate evaluation of urinary K+ excretion, acid-base status, and the amount of potassium chloride required to correct hypokalemia at presentation.

  13. Concurrent and Longitudinal Contribution of Exposure to Bullying in Childhood to Mental Health

    Science.gov (United States)

    Singham, Timothy; Viding, Essi; Schoeler, Tabea; Arseneault, Louise; Ronald, Angelica; Cecil, Charlotte M.; McCrory, Eamon; Rijsdijk, Frülhing

    2017-01-01

    Importance Exposure to bullying is associated with poor mental health. However, the degree to which observed associations reflect direct detrimental contributions of exposure to bullying to mental health remains uncertain, as noncausal relationships may arise from genetic and environmental confounding (eg, preexisting vulnerabilities). Determining to what extent exposure to bullying contributes to mental health is an important concern, with implications for primary and secondary interventions. Objective To characterize the concurrent and longitudinal contribution of exposure to bullying to mental health in childhood and adolescence using a twin differences design to strengthen causal inference. Design, Setting, and Participants Participants were drawn from the Twins Early Development Study, a population-based cohort recruited from population records of births in England and Wales between January 1, 1994, and December 31, 1996. Data collection took place when the participants were between 11 and 16 years of age from December 1, 2005, to January 31, 2013. Data analysis was conducted from January 1, 2016, to June 20, 2017. Exposures Participants completed the Multidimensional Peer-Victimization Scale at 11 and 14 years of age. Main Outcomes and Measures Mental health assessments at 11 and 16 years of age included anxiety, depression, hyperactivity and impulsivity, inattention, conduct problems, and psychotic-like experiences (eg, paranoid thoughts or cognitive disorganization). Results The 11 108 twins included in the final sample (5894 girls and 5214 boys) were a mean age of 11.3 years at the first assessment and 16.3 years at the last assessment. The most stringent twin differences estimates (monozygotic) were consistent with causal contribution of exposure to bullying at 11 years to concurrent anxiety, depression, hyperactivity and impulsivity, inattention, and conduct problems. Effects decreased over time; that is, substantial concurrent contributions to anxiety

  14. Gambling in Texas: 1995 Surveys of Adult and Adolescent Gambling Behavior.

    Science.gov (United States)

    Wallisch, Lynn S.

    The impact of the Texas State Lottery on gambling patterns, expenditures on gambling, and the prevalence of problem gambling in Texas is assessed. Background and methodology is presented in Part 1. Data are compared with a survey run prior to the introduction of the first state lottery. Part 2, "Gambling among Texas Adults," includes…

  15. 30 CFR 943.25 - Approval of Texas abandoned mine land reclamation plan amendments.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Approval of Texas abandoned mine land... STATE TEXAS § 943.25 Approval of Texas abandoned mine land reclamation plan amendments. The following is... reclamation on all lands adversely impacted by past coal mining. August 24, 1997 January 30, 1997...

  16. Perceptions of Texas 4-H Livestock Ambassadors on Career Development, Higher Education, and Leadership Development

    Science.gov (United States)

    Zanolini, William F.; Rayfield, John; Ripley, Jeff

    2013-01-01

    Selected 4-H youth participated in the Texas 4-H Livestock Ambassador program. Forty-five youth participated in the 3-day program delivered by university professors and staff, Texas AgriLife Extension faculty and industry representatives. An instrument was developed and administered to the Texas 4-H Livestock Ambassadors at the end of their first…

  17. Texas Academy of Mathematics and Science: 25 Years of Early College STEM Opportunities

    Science.gov (United States)

    Sayler, Michael F.

    2015-01-01

    The University of North Texas's Texas Academy of Mathematics and Science began admitting students to its 2-year early college entrance science, technology, engineering, and mathematics (STEM) program in the fall of 1988. This program provided accelerated entry for top students in Texas in the areas of mathematics and science. Approximately 200…

  18. 7 CFR 457.106 - Texas citrus tree crop insurance provisions.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 6 2010-01-01 2010-01-01 false Texas citrus tree crop insurance provisions. 457.106... INSURANCE CORPORATION, DEPARTMENT OF AGRICULTURE COMMON CROP INSURANCE REGULATIONS § 457.106 Texas citrus tree crop insurance provisions. The Texas Citrus Tree Crop Insurance Provisions for the 1999 and...

  19. Chemical and physical characteristics of water in estuaries of Texas; October 1978-September 1983

    Science.gov (United States)

    Fisher, J.C.; Grozier, R.U.

    1985-01-01

    The Texas Water Plan (Texas Water Development Board, 1968) proposed development and utilization of water resources in Texas and included a provision for the use and preservation of water in the estuaries of the State. Management of estuarine waters requires knowledge of the hydrodynamics and of the continuing changes in the chemical and physical characteristics of water in the estuaries.

  20. 30 CFR 943.20 - Approval of Texas abandoned mine land reclamation plan.

    Science.gov (United States)

    2010-07-01

    ... § 943.20 Approval of Texas abandoned mine land reclamation plan. The Secretary approved the Texas abandoned mine land reclamation plan, as submitted on April 24, 1980, and amended on May 30, 1980, June 2... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Approval of Texas abandoned mine land...

  1. From the Battlefront of the Texas History Wars: Contending with "American Exceptionalism"

    Science.gov (United States)

    Noboa, Julio

    2011-01-01

    It was in late May of 2010 that the Texas State Board of Education (SBOE) took their final vote on the curriculum standards that will have an impact on what millions of students in Texas as well as dozens of other states will learn about history and social studies for the next 10 years. These "Texas Essential Knowledge and Skills" (TEKS)…

  2. 76 FR 20968 - Application To Export Electric Energy; DC Energy Texas, LLC

    Science.gov (United States)

    2011-04-14

    ... energy that DCE Texas proposes to export to Mexico would be surplus energy purchased from electric... listed above. Comments on the DCE Texas application to export electric energy to Mexico should be clearly... Application To Export Electric Energy; DC Energy Texas, LLC AGENCY: Office of Electricity Delivery and Energy...

  3. 78 FR 56071 - Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for Texas Golden...

    Science.gov (United States)

    2013-09-11

    ... local Soil and Water Conservation District, NRCS, Texas Forest Service, a private forestry services... critical habitat designation for the Texas golden gladecress would be an improvement to conservation... and Threatened Wildlife and Plants; Designation of Critical Habitat for Texas Golden Gladecress and...

  4. 77 FR 50767 - Endangered and Threatened Wildlife and Plants; Endangered Status for Four Central Texas...

    Science.gov (United States)

    2012-08-22

    ... primary threat to the four central Texas salamander species. Water quality degradation in salamander... the Texas State Data Center (2008, p. 1) estimate that Travis County will increase in population from... size over this 40-year period. The Texas State Data Center also estimates an increase in human...

  5. 76 FR 28885 - Brucellosis in Swine; Add Texas to List of Validated Brucellosis-Free States

    Science.gov (United States)

    2011-05-19

    ... Inspection Service 9 CFR Part 78 Brucellosis in Swine; Add Texas to List of Validated Brucellosis- Free... comments. SUMMARY: We are amending the brucellosis regulations concerning the interstate movement of swine by adding Texas to the list of validated brucellosis-free States. We have determined that Texas meets...

  6. Grassland Birds Wintering at U.S. Navy Facilities in Southern Texas

    Science.gov (United States)

    2010-07-01

    brevis Texas horned lizard* Phrynosoma cornutum Texas spiny lizard Sceloporus olivaceus Texas indigo snake * Drymarchon corais Southwestern rat snake ...Elaphe guttata Ribbon snake Thamnophis proximus Western diamondback rattlesnake Crotalus atrox Structural and Floristic Characteristics of Native and...months. Dry periods increase nutritional stress and, in turn, reduce the production of offspring, which commonly cause small mammal popula- tions to

  7. Spatiotemporal associations of reservoir nutrient characteristics and the invasive, harmful alga Prymnesium parvum in West Texas

    Science.gov (United States)

    VanLandeghem, Matthew M.; Farooqi, Mukhtar; Southard, Greg M.; Patino, Reynaldo

    2015-01-01

    Golden alga (Prymnesium parvum) is a harmful alga that has caused ecological and economic harm in freshwater and marine systems worldwide. In inland systems of North America, toxic blooms have nearly eliminated fish populations in some systems. Modifying nutrient profiles through alterations to land or water use may be a viable alternative for golden alga control in reservoirs. The main objective of this study was to improve our understanding of the nutrient dynamics that influence golden alga bloom formation and toxicity in west Texas reservoirs. We examined eight sites in the Upper Colorado River basin, Texas: three impacted reservoirs that have experienced repeated golden alga blooms; two reference reservoirs where golden alga is present but nontoxic; and three confluence sites downstream of the impacted and reference sites. Total, inorganic, and organic nitrogen and phosphorus and their ratios were quantified monthly along with golden alga abundance and ichthyotoxicity between December 2010 and July 2011. Blooms persisted for several months at the impacted sites, which were characterized by high organic nitrogen and low inorganic nitrogen. At impacted sites, abundance was positively associated with inorganic phosphorus and bloom termination coincided with increases in inorganic nitrogen and decreases in inorganic phosphorus in late spring. Management of both inorganic and organic forms of nutrients may create conditions in reservoirs unfavorable to golden alga.

  8. Installation Restoration Program. Phase 1. Records Search, Lackland AFB, Texas

    Science.gov (United States)

    1985-02-01

    governmental environ- mental projects. Environmental Engineering Department Head (1973-1976). Supervised staff involved in auditing environmental practices...V. -4 a a ; to- w w M, 4-. c* a a M - ~ a -- ~= a a a a a aa as-au ’- aC aCca - ~~~ - aa:0 a 0 24 X4 JU 2 a -- a. -~a - .wZ 2kD.4 4 ob0 m C C w 4a...Wells, Bexar County, Texas, Texas Department of Water Resources Report 237. McIntosh, W. E. and Behm, R. C., 1967. Geological and Foundation

  9. Energy Policy Case Study - Texas: Wind, Markets, and Grid Modernization

    Energy Technology Data Exchange (ETDEWEB)

    Orrell, Alice C. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Homer, Juliet S. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Bender, Sadie R. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Weimar, Mark R. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2016-09-19

    This document presents a case study of energy policies in Texas related to power system transformation, renewable energy and distributed energy resources (DERs). Texas has experienced a dramatic increase in installed wind capacity, from 116 MW in 2000 to over 15,000 MW in 2015. This achievement was enabled by the designation of Competitive Renewable Energy Zones (CREZs) and new transmission lines that transmit wind to load centers. This report highlights nascent efforts to include DERs in the ERCOT market. As costs decline and adoption rates increase, ERCOT expects distributed generation to have an increasing effect on grid operations, while bringing potentially valuable new resources to the wholesale markets.

  10. Wineries' Involvement in Promoting Tourism Online: The Case of Texas

    Directory of Open Access Journals (Sweden)

    Rasch, Leslie

    2008-04-01

    Full Text Available Wine tourism has become an important driver of business for wineries in many regions around the world, while Texas wine regions are only starting to emerge as important tourism destinations. A study was conducted to investigate how effectively Texas wineries market tourism to their own establishments as well as in a regional context. A specific focus was placed on indications of collaborative wine tourism marketing practices on winery websites. The results indicate that wineries provide basic visitor information but are missing out on strategic opportunities to market wine tourism to their areas.

  11. Texas LPG fuel cell development and demonstration project

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2004-07-26

    The State Energy Conservation Office has executed its first Fuel Cell Project which was awarded under a Department of Energy competitive grant process. The Texas LPG Fuel Processor Development and Fuel Cell Demonstration Program is a broad-based public/private partnership led by the Texas State Energy Conservation Office (SECO). Partners include the Alternative Fuels Research and Education Division (AFRED) of the Railroad Commission of Texas; Plug Power, Inc., Latham, NY, UOP/HyRadix, Des Plaines, IL; Southwest Research Institute (SwRI), San Antonio, TX; the Texas Natural Resource Conservation Commission (TNRCC), and the Texas Department of Transportation (TxDOT). The team proposes to mount a development and demonstration program to field-test and evaluate markets for HyRadix's LPG fuel processor system integrated into Plug Power's residential-scale GenSys(TM) 5C (5 kW) PEM fuel cell system in a variety of building types and conditions of service. The program's primary goal is to develop, test, and install a prototype propane-fueled residential fuel cell power system supplied by Plug Power and HyRadix in Texas. The propane industry is currently funding development of an optimized propane fuel processor by project partner UOP/HyRadix through its national checkoff program, the Propane Education and Research Council (PERC). Following integration and independent verification of performance by Southwest Research Institute, Plug Power and HyRadix will produce a production-ready prototype unit for use in a field demonstration. The demonstration unit produced during this task will be delivered and installed at the Texas Department of Transportation's TransGuide headquarters in San Antonio, Texas. Simultaneously, the team will undertake a market study aimed at identifying and quantifying early-entry customers, technical and regulatory requirements, and other challenges and opportunities that need to be addressed in planning commercialization of the units

  12. Texas Hydrogen Education Final Scientific/Technical Report

    Energy Technology Data Exchange (ETDEWEB)

    Hitchcock, David; Bullock, Dan

    2011-06-30

    The Texas Hydrogen Education project builds on past interest in hydrogen and fuel cells to help create better informed leaders and stakeholders and thereby improve decision making and planning for inclusion of hydrogen and fuel cell technologies as energy alternatives in Texas. In past years in Texas, there was considerable interest and activities about hydrogen and fuel cells (2000-­2004). During that time, the Houston Advanced Research Center (HARC) created a fuel cell consortium and a fuel cell testing lab. Prior to 2008, interest and activities had declined substantially. In 2008, in cooperation with the Texas H2 Coalition and the State Energy Conservation Office, HARC conducted a planning process to create the Texas Hydrogen Roadmap. It was apparent from analysis conducted during the course of this process that while Texas has hydrogen and fuel cell advantages, there was little program and project activity as compared with other key states. Outreach and education through the provision of informational materials and organizing meetings was seen as an effective way of reaching decision makers in Texas. Previous hydrogen projects in Texas had identified the five major urban regions for program and project development. This geographic targeting approach was adopted for this project. The project successfully conducted the five proposed workshops in four of the target metropolitan areas: San Antonio, Houston, Austin, and the Dallas-­Ft. Worth area. In addition, eight outreach events were included to further inform state and local government leaders on the basics of hydrogen and fuel cell technologies. The project achieved its primary objectives of developing communication with target audiences and assembling credible and consistent outreach and education materials. The major lessons learned include: (1) DOE’s Clean Cities programs are a key conduit to target transportation audiences, (2) real-­world fuel cell applications (fuel cell buses, fuel cell fork lifts

  13. Concurrence Measurement for the Two-Qubit Optical and Atomic States

    Directory of Open Access Journals (Sweden)

    Lan Zhou

    2015-06-01

    Full Text Available Concurrence provides us an effective approach to quantify entanglement, which is quite important in quantum information processing applications. In the paper, we mainly review some direct concurrence measurement protocols of the two-qubit optical or atomic system. We first introduce the concept of concurrence for a two-qubit system. Second, we explain the approaches of the concurrence measurement in both a linear and a nonlinear optical system. Third, we introduce some protocols for measuring the concurrence of the atomic entanglement system.

  14. Content and concurrent validity of the motivation for change questionnaire.

    Science.gov (United States)

    Grahn, Birgitta; Gard, Gunvor

    2008-03-01

    Musculoskeletal disorders (MSD) are nowadays seen within a biopsychosocial framework, including salutogenic factors, motivation factors, and coping ability. Such a framework recognizes the importance of motivational factors in health promotion and in rehabilitation. The Motivation for Change Questionnaire (MCQ) has been developed to measure the strength of individuals' motivation for change in life, MCQ part 1, and work situation, MCQ part 2. The purpose of the study was to test the content and concurrent validity of the MCQ on patients with prolonged musculoskeletal disorders referred to interdisciplinary rehabilitation as a basis for use in medical and occupational rehabilitation. Content validity was studied among an expert group of 20 rehabilitation professionals at a rehabilitation centre, and with 10 individuals suffering from prolonged MSD in the south of Sweden. The experts evaluated the clinical relevance of each question in MCQ. Concurrent validity was studied on 58 patients with prolonged MSD at an interdisciplinary rehabilitation centre in the south of Sweden. They answered MCQ, QPS Nordic questionnaire, KASAM and the Action theory questionnaire. Spearman's rank correlation coefficient was used in the analyses. The MCQ covered and measured areas of relevance according to content validity. No floor effects in any of the subscales of MCQ part 1 were seen. In MCQ part 2, floor effects were seen in two sub indexes. As for concurrent validity subscales of MCQ correlated significantly with QPS Nordic questionnaire and KASAM. Findings so far indicate the instrument to be valid for use within the present patient group. The questionnaire can be used to identify patient's motivating factors for change in life and work, as a basis for motivational work within rehabilitation.

  15. Concurrent Object Access for the W7-X Configuration Database

    Energy Technology Data Exchange (ETDEWEB)

    Maier, J.; Heimann, P.; Kroiss, H.; Zilker, M. [Max-Planck-Institute for Plasmaphysics, Garching (Germany); Bluhm, T.; Hennig, C.; Kuhner, G.; Laqua, H.; Lewerentz, M.; Riemann, H.; Schacht, J.; Spring, A.; Werner, A. [Max-Planck-Institute for Plasmaphysics, Teilinstitut Greifswald (Germany)

    2009-07-01

    The W7-X Device is designed for continuous operation where long discharges are subdivided into time intervals. In W7-X terminology these time intervals are called segments. Each segment requires numerous parameters for all the attached data acquisition- and fast control stations. The descriptors of these segments and the descriptors of the stations, each consisting of a large number of individual objects together with the parameter set objects for all the modules of W7- X CoDaC are kept in the W7-X Object database. The configuration of a station forms a tree structure of many module objects. A segment descriptor for the whole W7-X project also forms a tree structure containing mainly sub-trees of group (component) descriptors with the parameter sets of all the modules involved in W7X CoDaC. Each object may be addressed and edited separately and may be reused and referenced in many other objects. Setting up these structures of objects is done concurrently via several editing tools by different users. One of the main policies is to reuse as many objects as possible. The high granularity of the database implies that changes in the configurations or segments parameters can have serious impacts on the many object graphs in the database. The handling and editing of the huge amount of segment descriptors containing many shared objects have to be accomplished in a concurrent, but nevertheless collision-safe manner. More general, the concurrent access to the objects together with safe operations (guaranteeing consistent structures) on the objects has to be solved. Some ideas for object locking strategies and competition reduction will be presented and discussed. The goal should be to reduce locking necessities either structurally which seems difficult in this case, or by defined work-flows which avoid competition. This document is composed of an abstract and a poster. (authors)

  16. Multiprocessor system with multiple concurrent modes of execution

    Science.gov (United States)

    Ahn, Daniel; Ceze, Luis H; Chen, Dong; Gara, Alan; Heidelberger, Philip; Ohmacht, Martin

    2013-12-31

    A multiprocessor system supports multiple concurrent modes of speculative execution. Speculation identification numbers (IDs) are allocated to speculative threads from a pool of available numbers. The pool is divided into domains, with each domain being assigned to a mode of speculation. Modes of speculation include TM, TLS, and rollback. Allocation of the IDs is carried out with respect to a central state table and using hardware pointers. The IDs are used for writing different versions of speculative results in different ways of a set in a cache memory.

  17. Multiprocessor system with multiple concurrent modes of execution

    Energy Technology Data Exchange (ETDEWEB)

    Ahn, Daniel; Ceze, Luis H.; Chen, Dong Chen; Gara, Alan; Heidelberger, Philip; Ohmacht, Martin

    2016-11-22

    A multiprocessor system supports multiple concurrent modes of speculative execution. Speculation identification numbers (IDs) are allocated to speculative threads from a pool of available numbers. The pool is divided into domains, with each domain being assigned to a mode of speculation. Modes of speculation include TM, TLS, and rollback. Allocation of the IDs is carried out with respect to a central state table and using hardware pointers. The IDs are used for writing different versions of speculative results in different ways of a set in a cache memory.

  18. Remote Entanglement by Coherent Multiplication of Concurrent Quantum Signals.

    Science.gov (United States)

    Roy, Ananda; Jiang, Liang; Stone, A Douglas; Devoret, Michel

    2015-10-09

    Concurrent remote entanglement of distant, noninteracting quantum entities is a crucial function for quantum information processing. In contrast with the existing protocols which employ the addition of signals to generate entanglement between two remote qubits, the continuous variable protocol we present is based on the multiplication of signals. This protocol can be straightforwardly implemented by a novel Josephson junction mixing circuit. Our scheme would be able to generate provable entanglement even in the presence of practical imperfections: finite quantum efficiency of detectors and undesired photon loss in current state-of-the-art devices.

  19. Concurrent hepatic hemangioma and solitary fibrous tumor: diagnosis and management.

    Science.gov (United States)

    Kueht, Michael; Masand, Prakash; Rana, Abbas; Cotton, Ronald; Goss, John

    2015-07-24

    Hepatic solitary fibrous tumor (HSFT) is a very rare benign liver tumor without well-defined findings on imaging. Even with multiphase advanced contrast-enhanced liver imaging, a definitive preoperative diagnosis is impossible. The diagnostic process can be further complicated when there are two concurrent lesions with different radiologic appearances. Here, we compare the findings of a commonly encountered liver lesion, hepatic hemangioma, with those of an exceedingly rare lesion, HSFT. Published by Oxford University Press and JSCR Publishing Ltd. All rights reserved. © The Author 2015.

  20. Improving Construction Process through Integration and Concurrent Engineering

    Directory of Open Access Journals (Sweden)

    Malik Khalfan

    2012-11-01

    Full Text Available In an increasingly competitive business environment, improvedtime-to-market, reduced production cost, quality of the productand customer involvement are rapidly becoming the key successfactors for any product development process. Consequently, mostorganisations are moving towards the adoption of latest technologyand new management concepts and philosophies such as totalquality management and concurrent engineering (CE to bringimprovement in their product development process. This paperdiscusses the adoption of integrated processes and CE withinthe construction industry to enable construction organisations toimprove their project development process. It also discusses aproposed integrated database model for the construction projects,which should enable the construction process to improve, becomemore effective and more efficient.

  1. [A rare concurrence of polymyalgia rheumatica and AA-amyloidosis].

    Science.gov (United States)

    Radenska-Lopovok, S G; Kotenko, O N; Frolova, N F; Zagrebneva, A I; Stolyarevich, E S; Volodina, E V; Chervinko, V I; Kryukov, E V; Zubkin, M L

    2017-01-01

    Polymyalgia rheumatica (PMR) is a rare chronic inflammatory disease. It predominantly affects the elderly. The disease has a slow onset, pain and stiffness in the muscles of the shoulder and pelvic girdle, fever, weight loss, and a high acute-phase inflammatory response. The disease is concurrent with giant cell arteritis in a quarter of cases, which allows some authors to consider them as two different manifestations of the same pathological process. The kidneys are rarely involved. This disease is rarely complicated by AA amyloidosis. The authors describe a case of RPM in a patient who has developed secondary AA amyloidosis.

  2. Concurrent sexual partners-A predictor of Chlamydia

    DEFF Research Database (Denmark)

    Jørgensen, Marianne Johansson; Olesen, Frede; Maindal, Helle Terkildsen

    2013-01-01

    overlap between sexual partners; OR = 3.1(95% CI:1.7-5.8) - 2 overlaps between sexual partners; OR = 4.3(95% CI:1.6-13.3) - 3 overlaps between sexual partners; OR = 4.7(95% CI:1.0-43.3) Results are preliminary. Multivariate analyses will be performed and presented at the poster session. Conclusion......, but the significance of this compared with other well-known predictors has only been briefly described. Aim: The aim is to examine if concurrent partners isan independent predictor for C. trachomatis infection in young Danes aged 15-29 years. Methods: Detailed sexual behavior data were collected via a web...

  3. Concurrent and Distributed Applications with ActoDeS

    Directory of Open Access Journals (Sweden)

    Bergenti Federico

    2016-01-01

    Full Text Available ActoDeS is a software framework for the development of large concurrent and distributed systems. This software framework takes advantage of the actor model and of an its implementation that makes easy the development of the actor code by delegating the management of events (i.e., the reception of messages to the execution environment. Moreover, it allows the development of scalable and efficient applications through the possibility of using different implementations of the components that drive the execution of actors. In particular, the paper introduces the software framework and presents the results of its experimentation.

  4. Concurrent Validity of the International Family Quality of Life Survey.

    Science.gov (United States)

    Samuel, Preethy S; Pociask, Fredrick D; DiZazzo-Miller, Rosanne; Carrellas, Ann; LeRoy, Barbara W

    2016-01-01

    The measurement of the social construct of Family Quality of Life (FQOL) is a parsimonious alternative to the current approach of measuring familial outcomes using a battery of tools related to individual-level outcomes. The purpose of this study was to examine the internal consistency and concurrent validity of the International FQOL Survey (FQOLS-2006), using cross-sectional data collected from 65 family caregivers of children with developmental disabilities. It shows a moderate correlation between the total FQOL scores of the FQOLS-2006 and the Beach Center's FQOL scale. The validity of five FQOLS-2006 domains was supported by the correlations between conceptually related domains.

  5. Concurrent Infection with Dengue and Malaria: An Unusual Presentation

    Science.gov (United States)

    Mushtaq, Mohsin Bin; Qadri, Mehmood I.; Rashid, Aaliya

    2013-01-01

    Dengue and malaria are both endemic in South Asia and represent a major public health burden in this region. Though there have been some case reports of concurrent infection with dengue and malaria, yet there are only few cases of such infections reported from South Asia. Here, we present a case of a young male returning from a dengue endemic area who tested positive for the virus along with Plasmodium vivax and Plasmodium falciparum. In view of the severity of coinfection (Epelboin et al., 2012), overlapping symptoms, and a challenging obscurity of diagnosis, a multidimensional diagnostic approach is suggested. PMID:23606854

  6. An Introduction to Parallelism, Concurrency and Acceleration (1/2)

    CERN Multimedia

    CERN. Geneva

    2016-01-01

    Concurrency and parallelism are firm elements of any modern computing infrastructure, made even more prominent by the emergence of accelerators. These lectures offer an introduction to these important concepts. We will begin with a brief refresher of recent hardware offerings to modern-day programmers. We will then open the main discussion with an overview of the laws and practical aspects of scalability. Key parallelism data structures, patterns and algorithms will be shown. The main threats to scalability and mitigation strategies will be discussed in the context of real-life optimization problems.

  7. Virtual Machine Support for Many-Core Architectures: Decoupling Abstract from Concrete Concurrency Models

    Directory of Open Access Journals (Sweden)

    Stefan Marr

    2010-02-01

    Full Text Available The upcoming many-core architectures require software developers to exploit concurrency to utilize available computational power. Today's high-level language virtual machines (VMs, which are a cornerstone of software development, do not provide sufficient abstraction for concurrency concepts. We analyze concrete and abstract concurrency models and identify the challenges they impose for VMs. To provide sufficient concurrency support in VMs, we propose to integrate concurrency operations into VM instruction sets. Since there will always be VMs optimized for special purposes, our goal is to develop a methodology to design instruction sets with concurrency support. Therefore, we also propose a list of trade-offs that have to be investigated to advise the design of such instruction sets. As a first experiment, we implemented one instruction set extension for shared memory and one for non-shared memory concurrency. From our experimental results, we derived a list of requirements for a full-grown experimental environment for further research.

  8. Optimizing Surveillance for South American Origin Influenza A Viruses Along the United States Gulf Coast Through Genomic Characterization of Isolates from Blue-winged Teal (Anas discors).

    Science.gov (United States)

    Ramey, A M; Walther, P; Link, P; Poulson, R L; Wilcox, B R; Newsome, G; Spackman, E; Brown, J D; Stallknecht, D E

    2016-04-01

    Relative to research focused on inter-continental viral exchange between Eurasia and North America, less attention has been directed towards understanding the redistribution of influenza A viruses (IAVs) by wild birds between North America and South America. In this study, we genomically characterized 45 viruses isolated from blue-winged teal (Anas discors) along the Texas and Louisiana Gulf Coast during March of 2012 and 2013, coincident with northward migration of this species from Neotropical wintering areas to breeding grounds in the United States and Canada. No evidence of South American lineage genes was detected in IAVs isolated from blue-winged teal supporting restricted viral gene flow between the United States and southern South America. However, it is plausible that blue-winged teal redistribute IAVs between North American breeding grounds and wintering areas throughout the Neotropics, including northern South America, and that viral gene flow is limited by geographical barriers further south (e.g., the Amazon Basin). Surveillance for the introduction of IAVs from Central America and northern South America into the United States may be further optimized through genomic characterization of viruses resulting from coordinated, concurrent sampling efforts targeting blue-winged teal and sympatric species throughout the Neotropics and along the United States Gulf Coast. © Published 2014. This article is a US Government work and is in the public domain in the USA.

  9. Concurrent Bursty Behavior of Social Sensors in Sporting Events.

    Directory of Open Access Journals (Sweden)

    Yuki Takeichi

    Full Text Available The advent of social media expands our ability to transmit information and connect with others instantly, which enables us to behave as "social sensors." Here, we studied concurrent bursty behavior of Twitter users during major sporting events to determine their function as social sensors. We show that the degree of concurrent bursts in tweets (posts and retweets (re-posts works as a strong indicator of winning or losing a game. More specifically, our simple tweet analysis of Japanese professional baseball games in 2013 revealed that social sensors can immediately react to positive and negative events through bursts of tweets, but that positive events are more likely to induce a subsequent burst of retweets. We confirm that these findings also hold true for tweets related to Major League Baseball games in 2015. Furthermore, we demonstrate active interactions among social sensors by constructing retweet networks during a baseball game. The resulting networks commonly exhibited user clusters depending on the baseball team, with a scale-free connectedness that is indicative of a substantial difference in user popularity as an information source. While previous studies have mainly focused on bursts of tweets as a simple indicator of a real-world event, the temporal correlation between tweets and retweets implies unique aspects of social sensors, offering new insights into human behavior in a highly connected world.

  10. Concurrent Bursty Behavior of Social Sensors in Sporting Events.

    Science.gov (United States)

    Takeichi, Yuki; Sasahara, Kazutoshi; Suzuki, Reiji; Arita, Takaya

    2015-01-01

    The advent of social media expands our ability to transmit information and connect with others instantly, which enables us to behave as "social sensors." Here, we studied concurrent bursty behavior of Twitter users during major sporting events to determine their function as social sensors. We show that the degree of concurrent bursts in tweets (posts) and retweets (re-posts) works as a strong indicator of winning or losing a game. More specifically, our simple tweet analysis of Japanese professional baseball games in 2013 revealed that social sensors can immediately react to positive and negative events through bursts of tweets, but that positive events are more likely to induce a subsequent burst of retweets. We confirm that these findings also hold true for tweets related to Major League Baseball games in 2015. Furthermore, we demonstrate active interactions among social sensors by constructing retweet networks during a baseball game. The resulting networks commonly exhibited user clusters depending on the baseball team, with a scale-free connectedness that is indicative of a substantial difference in user popularity as an information source. While previous studies have mainly focused on bursts of tweets as a simple indicator of a real-world event, the temporal correlation between tweets and retweets implies unique aspects of social sensors, offering new insights into human behavior in a highly connected world.

  11. Concurrent training effect on muscle fibers in Wistar rats

    Directory of Open Access Journals (Sweden)

    Robson Chacon Castoldi

    2013-12-01

    Full Text Available The aim of the present study was to determine the modeling of muscle fibers in rats submitted to different exercise protocols. Fifty-five Wistar rats were submitted divided into four different groups: Control group (CG; N=16; endurance training group (ETG; N=13, strength training group (STG; N=13 and concurrent training group (CTG; N=13. The intensity of endurance training was determined by the critical workload. Statistical analysis involved the Kruskal-Wallis test for multiple comparisons, followed by Dunn's post test (p0.05 occurred in the STG and CTG at both four (mean:2952,95 ± 878,39 mean:2988,84 ± 822,58 and eight weeks respectively (mean:3020,26 ± 800.91; mean:3104,91 ± 817,87. The findings demonstrate similar results obtained with strength training and concurrent training, with a greater increase in muscle fiber area in both groups in comparison to the control group and group submitted to endurance training.

  12. Concurrency control and recovery on lightweight directory access protocol

    Science.gov (United States)

    Potnis, Rohit R.; Sathaye, Archana S.

    2003-04-01

    In this paper we provide a concurrency control and recovery (CCR) mechanism over cached LDAP objects. An LDAP server can be directly queried using system calls to retrieve data. Existing LDAP implementations do not provide CCR mechanisms. In such cases, it is up to the application to verify that accesses remain serialized. Our mechanism provides an independent layer over an existing LDAP server (Sun One Directory Server), which handles all user requests, serializes them based on 2 Phase Locking and Timestamp Ordering mechanisms and provides XML-based logging for recovery management. Furthermore, while current LDAP servers only provide object-level locking, our scheme serializes transactions on individual attributes of LDAP objects (attribute-level locking). We have developed a Directory Enabled Network (DEN) Simulator that operates on a subset of directory objects on an existing LDAP server to test the proposed mechanism. We perform experiments to show that our mechanism can gracefully address concurrency and recovery related issues over and LDAP server.

  13. Concurrent chemoradiation in locally advanced carcinoma cervix patients

    Directory of Open Access Journals (Sweden)

    Negi R

    2010-01-01

    Full Text Available Purpose : To investigate the feasibility of concurrent chemo radiation in locally advanced carcinoma cervix patients in our clinical setting. Materials and Methods : From Sept. 1 st 2005 to Aug. 31 st 2006, 102 patients of carcinoma cervix belonging to stage IIA to IV A were enrolled in the study. External beam radiation therapy was administered using Cobalt 60 teletherapy machine. Cisplatinum (40 mg/m 2 and 5 Fluorouracil (500 mg /m 2 continuous infusions with radiotherapy on D2-D5 in first and last 5 # of radiation therapy were administered. Results : Response to treatment and toxicities were monitored and analyzed in 102 patients (50 study group and 52 control group. All 102 patients completed treatment. Out of 50 patients in the study group, 30, 10 and 4 patients had complete, partial and progressive disease, respectively. While out of 52 patients in the control group, 26 had complete and 12 showed partial response. No difference in overall renal, hematological and cutaneous toxicity was seen between two groups. Conclusion : This study did not show any benefit of concurrent chemo radiation as compared to radiotherapy alone in locally advanced cervical cancer patients. This could be due to more bulk of tumor stage per stage, poor nutritional status, less number of patients in both arms, not enough to pick up statistically significant small difference in outcome.

  14. Concurrent design of quasi-random photonic nanostructures

    Science.gov (United States)

    Lee, Won-Kyu; Yu, Shuangcheng; Engel, Clifford J.; Reese, Thaddeus; Rhee, Dongjoon; Chen, Wei; Odom, Teri W.

    2017-08-01

    Nanostructured surfaces with quasi-random geometries can manipulate light over broadband wavelengths and wide ranges of angles. Optimization and realization of stochastic patterns have typically relied on serial, direct-write fabrication methods combined with real-space design. However, this approach is not suitable for customizable features or scalable nanomanufacturing. Moreover, trial-and-error processing cannot guarantee fabrication feasibility because processing-structure relations are not included in conventional designs. Here, we report wrinkle lithography integrated with concurrent design to produce quasi-random nanostructures in amorphous silicon at wafer scales that achieved over 160% light absorption enhancement from 800 to 1,200 nm. The quasi-periodicity of patterns, materials filling ratio, and feature depths could be independently controlled. We statistically represented the quasi-random patterns by Fourier spectral density functions (SDFs) that could bridge the processing-structure and structure-performance relations. Iterative search of the optimal structure via the SDF representation enabled concurrent design of nanostructures and processing.

  15. Cross Functional Working and Concurrent Engineering – a UK Study

    Directory of Open Access Journals (Sweden)

    H. Williams

    2000-01-01

    Full Text Available This paper reports on the preliminary results of an investigative study into the implementation of concurrent engineering applied to new product development. Concurrent (or Simultaneous engineering is the term commonly given to creating new products using multi-disciplined teams of marketing, design, manufacturing and support functions together with supplier and customers. Such techniques have produced robust, low cost quality products in short concept to market times compared to traditional ones. The research investigated design management practice and performance in a number of organisations across a range of industrial sectors in the UK by means of a questionnaire survey. The results identify the current use of a variety of design practices and methodologies such as different organisational structures, the extent of cross-functional working, the use of design and phase reviews and the use of different technologies. They indicate that companies implementing CE are more successful in time to market performance than those who don’t implement CE. Factors most influencing the successful adoption of CE are design and phase reviews, and, to a lesser extent, the use of multifunctional teams and supplier partnerships.

  16. Concurrent chemoradiation for unresectable advanced head and neck cancer

    Energy Technology Data Exchange (ETDEWEB)

    Shimizu, Wakako; Ogino, Takashi; Ishikura, Satoshi [National Cancer Center, Kashiwa, Chiba (Japan). Hospital East] [and others

    1998-03-01

    Concurrent chemoradiotherapy were performed for 18 patients with unresectable head and neck squamous cell cancer. Chemotherapy, consisting of CDDP (40 mg/m{sup 2}, Day 1 and 8) and 5-FU (200 mg/m{sup 2}, 24-h continuous infusion through Day 1-5 and 8-12), with concurrent radiotherapy (2 Gy/day, 5 days/w) were administered and repeated 2-3 courses in every 5 weeks. Mucositis and myelo-suppression were the main side effects observed, but all of them were tolerable. Total response rate and complete response rate was 94.4% and 55.6%, respectively. Out of six patients requiring tracheotomy for airway obstruction due to bulky tumor, four achieved sufficient tumor shrinkage by the treatment and could obtain closure of the stoma. Two patients whose neck lymph nodes were still remaining after chemoradiotherapy, could obtain local control by supplemental neck dissection surgery. These regimen is feasible and effective for locally advanced head and neck cancer. (author)

  17. Sarcoidosis and multiple myeloma: Concurrent presentation of an unusual association

    Directory of Open Access Journals (Sweden)

    Vidya Nair

    2016-01-01

    Full Text Available Literature on concurrent association of sarcoidosis with lymphoproliferative malignancies other than lymphoma e.g. multiple myeloma is meager. The rarity of the situation prompted us to report this patient who was a 51-year-old woman with a 2-years history of breathlessness, cough with expectoration, chest pain and backache. Initial evaluation revealed mild anemia, increased alkaline phosphatase with chest skiagram showing both lower zone non homogenous opacities with calcified hilar lymph nodes. CECT chest showed mediastinal with bilateral hilar lymphadenopathy, parenchymal fibrosis, traction bronchiectasis, ground glass opacities, septal and peribronchovascular thickening affecting mid and lower lung zones bilaterally. MRI Dorsolumbar spine was suggestive of marrow infiltrative disorder. EBUS FNA of intrathoracic nodes, EBB and TBLB confirmed sarcoidosis. PET CT revealed hyper metabolic activity in lung, multiple lymph nodes and lytic bone lesions. Serum protein electrophoresis and immunofixation revealed a monoclonal paraprotein, immunoglobulin IgG kappa type. Bone marrow biopsy revealed an increase in plasma cells (15%, but no granulomas. Diagnosis of Indolent or multiple myeloma with sarcoidosis was established. 12 cases of sarcoidosis and multiple myeloma have been reported in literature, and mostly preceding the onset of multiple myeloma by many years, in our case both were diagnosed concurrently.

  18. Complex and Concurrent Negotiations for Multiple Interrelated e-Markets.

    Science.gov (United States)

    Sim, Kwang Mong

    2013-02-01

    To date, most of the existing bargaining models are designed for supporting negotiation in only one market involving only two types of participants (buyers and sellers). This work devises a complex negotiation mechanism that supports negotiation activities among three types of participants in multiple interrelated markets. The complex negotiation mechanism consists of: 1) a bargaining-position-estimation (BPE) strategy for the multilateral negotiations between consumer and broker agents in a service market and 2) a regression-based coordination (RBC) strategy for concurrent negotiations between broker and provider agents in multiple resource markets. The negotiation outcomes between broker and provider agents in a resource market can potentially influence the negotiation outcomes between broker and consumer agents in a service market. Empirical results show that agents adopting the BPE strategy can better respond to different market conditions than agents adopting the time-dependent strategy because they do not make excessive (respectively, inadequate) amounts of concessions in favorable (respectively, unfavorable) markets. In the concurrent negotiations in multiple resource markets, empirical results show that broker agents adopting the RBC strategy achieved significantly higher utilities, higher success rates, and faster negotiation speed than broker agents adopting the utility-oriented and patient coordination strategies.

  19. Hickam's dictum: Myasthenia Gravis presenting concurrently with Graves' disease.

    Science.gov (United States)

    Sehgal, Shekhar; Rebello, Roshan; Wolmarans, Louise; Elston, Marianne

    2017-09-07

    We present two patients with Graves' disease and concurrent myasthenia gravis. The impact of the dual diagnosis on the clinical course and the potential for a delayed diagnosis of myasthenia gravis is discussed. Patient 1, a 28-year-old man was diagnosed with Graves' disease following his second respiratory arrest. His history was strongly suggestive of a second pathology. Patient 2, a 66-year-old Cantonese woman with established Graves' disease presented with thionamide-related neutropaenia. Examination revealed bilateral ptosis and right lateral rectus palsy. Both patients had thyrotoxicosis secondary to Graves' disease with concurrent myasthenia gravis. Although neuromuscular weakness is common in Graves' disease, coexisting myasthenia gravis (MG) is rare and can cause profound morbidity. Ocular signs in both diseases may cause diagnostic confusion although ptosis suggests coexisting MG. In both cases, the thyrotoxicosis delayed the diagnosis of MG. © BMJ Publishing Group Ltd (unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  20. Scalable Multicore Motion Planning Using Lock-Free Concurrency.

    Science.gov (United States)

    Ichnowski, Jeffrey; Alterovitz, Ron

    2014-10-01

    We present PRRT (Parallel RRT) and PRRT* (Parallel RRT*), sampling-based methods for feasible and optimal motion planning designed for modern multicore CPUs. We parallelize RRT and RRT* such that all threads concurrently build a single motion planning tree. Parallelization in this manner requires that data structures, such as the nearest neighbor search tree and the motion planning tree, are safely shared across multiple threads. Rather than rely on traditional locks which can result in slowdowns due to lock contention, we introduce algorithms based on lock-free concurrency using atomic operations. We further improve scalability by using partition-based sampling (which shrinks each core's working data set to improve cache efficiency) and parallel work-saving (in reducing the number of rewiring steps performed in PRRT*). Because PRRT and PRRT* are CPU-based, they can be directly integrated with existing libraries. We demonstrate that PRRT and PRRT* scale well as core counts increase, in some cases exhibiting superlinear speedup, for scenarios such as the Alpha Puzzle and Cubicles scenarios and the Aldebaran Nao robot performing a 2-handed task.

  1. Channels as Objects in Concurrent Object-Oriented Programming

    Directory of Open Access Journals (Sweden)

    Joana Campos

    2011-10-01

    Full Text Available There is often a sort of a protocol associated to each class, stating when and how certain methods should be called. Given that this protocol is, if at all, described in the documentation accompanying the class, current mainstream object-oriented languages cannot provide for the verification of client code adherence against the sought class behaviour. We have defined a class-based concurrent object-oriented language that formalises such protocols in the form of usage types. Usage types are attached to class definitions, allowing for the specification of (1 the available methods, (2 the tests clients must perform on the result of methods, and (3 the object status - linear or shared - all of which depend on the object's state. Our work extends the recent approach on modular session types by eliminating channel operations, and defining the method call as the single communication primitive in both sequential and concurrent settings. In contrast to previous works, we define a single category for objects, instead of distinct categories for linear and for shared objects, and let linear objects evolve into shared ones. We introduce a standard sync qualifier to prevent thread interference in certain operations on shared objects. We formalise the language syntax, the operational semantics, and a type system that enforces by static typing that methods are called only when available, and by a single client if so specified in the usage type. We illustrate the language via a complete example.

  2. Efficiency of twice weekly concurrent training in trained elderly men.

    Science.gov (United States)

    Ferrari, Rodrigo; Kruel, Luiz Fernando Martins; Cadore, Eduardo Lusa; Alberton, Cristine Lima; Izquierdo, Mikel; Conceição, Matheus; Pinto, Ronei Silveira; Radaelli, Régis; Wilhelm, Eurico; Bottaro, Martim; Ribeiro, Jorge Pinto; Umpierre, Daniel

    2013-11-01

    This study compared the effects of different weekly training frequencies on the cardiovascular and neuromuscular adaptations induced by concurrent training in previously trained elderly. After 20weeks of combined strength and endurance training, twenty-four healthy elderly men (65±4 years) were randomly placed into two frequency training groups: strength and endurance training performed twice a week (SE2, n=12); or, strength and endurance training performed three times per week (SE3, n=12). The interventions lasted 10 weeks and each group performed identical exercise intensity and volume per session. Before and after the exercise training, one maximum repetition test (1RM), isometric peak torque (PT), maximal surface electromyographic activity (EMG), as well as muscle thickness (MT) were examined. Additionally, peak oxygen uptake (VO(2peak)), maximum aerobic workload (W(max)), first and second ventilatory thresholds (VT1 and VT2) were evaluated. There were significant increases in upper and lower-body 1RM, MT, VO(2peak), VT1 and VT2, with no differences between groups. There were no changes after training in maximal EMG and isometric peak torque. W(max) was improved only in SE3. After 10 weeks of training, twice weekly combined strength and endurance training leads to similar neuromuscular and cardiovascular adaptations as three times per week, demonstrating the efficiency of lower frequency of concurrent training in previously trained elderly men. © 2013.

  3. Foveal Processing Under Concurrent Peripheral Load in Profoundly Deaf Adults

    Science.gov (United States)

    2016-01-01

    Development of the visual system typically proceeds in concert with the development of audition. One result is that the visual system of profoundly deaf individuals differs from that of those with typical auditory systems. While past research has suggested deaf people have enhanced attention in the visual periphery, it is still unclear whether or not this enhancement entails deficits in central vision. Profoundly deaf and typically hearing adults were administered a variant of the useful field of view task that independently assessed performance on concurrent central and peripheral tasks. Identification of a foveated target was impaired by a concurrent selective peripheral attention task, more so in profoundly deaf adults than in the typically hearing. Previous findings of enhanced performance on the peripheral task were not replicated. These data are discussed in terms of flexible allocation of spatial attention targeted towards perceived task demands, and support a modified “division of labor” hypothesis whereby attentional resources co-opted to process peripheral space result in reduced resources in the central visual field. PMID:26657078

  4. Model-Based Systems Engineering in Concurrent Engineering Centers

    Science.gov (United States)

    Iwata, Curtis; Infeld, Samantha; Bracken, Jennifer Medlin; McGuire, Melissa; McQuirk, Christina; Kisdi, Aron; Murphy, Jonathan; Cole, Bjorn; Zarifian, Pezhman

    2015-01-01

    Concurrent Engineering Centers (CECs) are specialized facilities with a goal of generating and maturing engineering designs by enabling rapid design iterations. This is accomplished by co-locating a team of experts (either physically or virtually) in a room with a narrow design goal and a limited timeline of a week or less. The systems engineer uses a model of the system to capture the relevant interfaces and manage the overall architecture. A single model that integrates other design information and modeling allows the entire team to visualize the concurrent activity and identify conflicts more efficiently, potentially resulting in a systems model that will continue to be used throughout the project lifecycle. Performing systems engineering using such a system model is the definition of model-based systems engineering (MBSE); therefore, CECs evolving their approach to incorporate advances in MBSE are more successful in reducing time and cost needed to meet study goals. This paper surveys space mission CECs that are in the middle of this evolution, and the authors share their experiences in order to promote discussion within the community.

  5. Resource Management and Contingencies in Aerospace Concurrent Engineering

    Science.gov (United States)

    Karpati, Gabe; Hyde, Tupper; Peabody, Hume; Garrison, Matthew

    2012-01-01

    significant concern in designing complex systems implementing new technologies is that while knowledge about the system is acquired incrementally, substantial financial commitments, even make-or-break decisions, must be made upfront, essentially in the unknown. One practice that helps in dealing with this dichotomy is the smart embedding of contingencies and margins in the design to serve as buffers against surprises. This issue presents itself in full force in the aerospace industry, where unprecedented systems are formulated and committed to as a matter of routine. As more and more aerospace mission concepts are generated by concurrent design laboratories, it is imperative that such laboratories apply well thought-out contingency and margin structures to their designs. The first part of this publication provides an overview of resource management techniques and standards used in the aerospace industry. That is followed by a thought provoking treatise on margin policies. The expose presents the actual flight telemetry data recorded by the thermal discipline during several recent NASA Goddard Space Flight Center missions. The margins actually achieved in flight are compared against pre-flight predictions, and the appropriateness and the ramifications of having designed with rigid margins to bounding stacked worst case conditions are assessed. The second half of the paper examines the particular issues associated with the application of contingencies and margins in the concurrent engineering environment. In closure, a discipline-by-discipline disclosure of the contingency and margin policies in use at the Integrated Design Center at NASA s Goddard Space Flight Center is made.

  6. Differences between the Texas phoenix palm phytoplasma and the ...

    African Journals Online (AJOL)

    ntushk

    Restriction fragment length polymorphisms analysis of the PCR-amplified nusA and the ... Four restriction enzymes were used for the nusA gene and 16 were used for the hflB genes. Key words: nusA, hflB, phytoplasma, Texas Phoenix decline. ..... Lee I-M, Gundersen-Rindall DE, Davis RE, Bottner KD, Marcone C,.

  7. Preeclampsia mortality in Texas: a capture-recapture analysis.

    Science.gov (United States)

    Eziefule, Akwugo A; Martinez, Carla A; Mulla, Zuber D

    2011-01-01

    Public health professionals and clinicians rely on hospital discharge data to explore the epidemiology of preeclampsia. Our objective was to compare the concordance in preeclampsia inpatient mortality between hospital inpatient discharge data and death certificate data in Texas during a 2-year period using the capture-recapture technique. The statewide Texas hospital inpatient discharge dataset and a statewide death certificate dataset were searched for fatal episodes of preeclampsia or eclampsia. Women who were Texas residents and expired in a hospital in 2006 or 2007 were identified using ICD-9-CM and ICD-10 codes. Using the capture-recapture sampling technique, we estimated the number of inpatient preeclamptic deaths that were missed by both databases, the death certificate database and the hospital inpatient database. The hospital inpatient dataset captured 17 fatal episodes of preeclampsia while the inpatient death certificate database captured 9. Six patients were found in both datasets. Application of the capture-recapture method revealed that the total number of statewide inpatient preeclamptic deaths was 26 during this period. This pilot study found that 2 prominent sources of statewide health data underestimated the frequency of inpatient deaths in Texas due to preeclampsia.

  8. Synthesis study of Texas signal control systems : technical report.

    Science.gov (United States)

    2012-09-01

    In recent years, several versions of traffic control systems have been established across the United States and within the state of Texas. There is a growing need to identify the various versions of these systems that exist, including the system hard...

  9. Soil response to clearcutting and site preparation in East Texas

    Science.gov (United States)

    John J. Stransky; Lowell K. Halls; K.G. Watterston

    1982-01-01

    On an east Texas forest site, clearcutting and site preparation did not change the soil pH. Chopping and KG blading significantly reduced organic matter i n the surface soil, while burning slightly increased it. Organic matter showed a positive and significant relationship to potassium, calcium and magnesium. Allsite treatments increased phosphorus and potassium, with...

  10. Delft Delta Design : The Houston Galveston Bay Region, Texas, USA

    NARCIS (Netherlands)

    Bedient, P.B.; Berchum, E.; Blackburn, J.B.; De Boer, R.; Van Brakel, S.; Van Breukelen, M.; Brody, S.D.; Cao, Q.; Colbert, T.M.; Cunningham, S.W.; Dupuits, G.; Van den Ende, I.; Gunnewijk, R.; Heeringa, T.; Hogendoorn, D.; Bubu Hsun Ho, T.; Huang, S.Y.; Janssen, M.; Karimi, I.; Kelderman, R.; Kok, M.; Kuipers, A.; Van Ledden, M.; Lendering, K.T.; Liao, Y.C.; Liu, F.; Van Loon-Steensma, J.; De Milliano, A.; Merrell, W.J.; Meyer, V.J.; Mooyaart, L.; Newman, G.; Stoeten, K.; Rippi, K.; Roukens, G.; Ruijs, M.; Samson, K.; Schlepers, M.; Slinger, J.H.; Smulders, J.; Van der Toorn, A.; Van Boxelaere, H.; De Vries, P.; Wang, D.; Yam, A.A.; Kothuis, B.L.M.; Brand, A.D.; Sebastian, A.G.; Nillesen, A.L.; Jonkman, S.N.

    2015-01-01

    In 2008, Hurricane Ike devastated Bolivar Peninsula, narrowly missing the more heavily industrialized and populated areas in the region. In the aftermath of the hurricane, the Severe Storm Prediction, Education and Evacuation from Disasters (SSPEED) Center at Rice University in Houston, and Texas

  11. 9 CFR 72.5 - Area quarantined in Texas.

    Science.gov (United States)

    2010-01-01

    ... of its regulations on its Internet homepage at http://www.tahc.state.tx.us/. Copies may be inspected... described in the regulations of the Texas Animal Health Commission (TAHC) contained in §§ 41.14 through 41.../code_of_federal_regulations/ibr_locations.html. ...

  12. 76 FR 67397 - Radio Broadcasting Services; Llano, Texas

    Science.gov (United States)

    2011-11-01

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Llano, Texas AGENCY: Federal Communications Commission... 47 CFR Part 73 Radio, Radio broadcasting. Federal Communications Commission. Nazifa Sawez, Assistant... Communications Commission proposes to amend 47 CFR part 73 as follows: PART 73--RADIO BROADCAST SERVICES 1. The...

  13. 78 FR 12010 - Radio Broadcasting Services; Pearsall, Texas

    Science.gov (United States)

    2013-02-21

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Pearsall, Texas AGENCY: Federal Communications....415 and 1.420. List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting. Federal Communications... preamble, the Federal Communications Commission proposes to amend 47 CFR part 73 as follows: PART 73--RADIO...

  14. "Robin Hood" on Ropes in Texas School Aid Tilt

    Science.gov (United States)

    Hoff, David J.

    2004-01-01

    Texas has had its Robin Hood school financing system in place since 1993, when the legislature adopted the system in response to a state supreme court order to equalize state spending on public schools. Under the arrangement, any district that has taxable property values exceeding $305,000 per student is not allowed to keep all of its property-tax…

  15. Texas Public School Attrition Study, 2013-14. IDRA Infographic

    Science.gov (United States)

    Intercultural Development Research Association, 2014

    2014-01-01

    This infographic shows how Texas public schools are losing one out of four students. The statistics show that schools are twice as likely to lose Hispanic students and Black students before they graduate, and universal high school education is at least a quarter of a century away. The flyer also provides information on getting informed, getting…

  16. Texas Occurrence of Lyme Disease and Its Neurological Manifestations.

    Science.gov (United States)

    Dandashi, Jad A; Nizamutdinov, Damir; Dayawansa, Samantha; Fonkem, Ekokobe; Huang, Jason H

    2016-06-01

    Today, Lyme disease is the most commonly reported tick-borne disease in the United States and Europe. The culprits behind Lyme disease are the Borrelia species of bacteria. In the USA, Borrelia burgdorferi causes the majority of cases, while in Europe and Asia Borrelia afzelii and Borrelia garinii carry the greatest burden of disease. The clinical manifestations of Lyme disease have been identified as early localized, early disseminated, and late chronic. The neurological effects of Lyme disease include both peripheral and central nervous systems involvement, including focal nerve abnormalities, cranial neuropathies, painful radiculoneuritis, meningitis, and/or toxic metabolic encephalopathy, known as Lyme encephalopathy. Given the geographic predominance of Lyme disease in the Northeast and Midwest of the USA, no major studies have been conducted regarding Southern states. Between 2005 and 2014, the Center for Disease Control has reported 582 confirmed cases of Lyme disease in Texas. Because of the potential for increased incidence and prevalence in Texas, it has become essential for research and clinical efforts to be diverted to the region. The Texas A&M College of Veterinary Medicine and Biomedical Sciences Lyme Lab has been investigating the ecology of Lyme disease in Texas and developing a pan-specific serological test for Lyme diagnosis. This report aimed to exposure materials and raise awareness of Lyme disease to healthcare providers.

  17. Megaregion freight movements : a case study of the Texas Triangle.

    Science.gov (United States)

    2011-09-01

    U.S. population growth is predicted to substantially increase over the next 40 years, particularly in areas with large regional economies forecasted to contain over two-thirds of the national economic activity. In Texas, population growth from 2000 t...

  18. Racial Threat and White Opposition to Bilingual Education in Texas

    Science.gov (United States)

    Hempel, Lynn M.; Dowling, Julie A.; Boardman, Jason D.; Ellison, Christopher G.

    2013-01-01

    This study examines local contextual conditions that influence opposition to bilingual education among non-Hispanic Whites, net of individual-level characteristics. Data from the Texas Poll (N = 615) are used in conjunction with U.S. Census data to test five competing hypotheses using binomial and multinomial logistic regression models. Our…

  19. Floristics of ephemeral ponds in east-central Texas

    Science.gov (United States)

    Barbara R. MacRoberts; Michael H. MacRoberts; D. Craig Rudolph; David W. Peterson

    2014-01-01

    Beginning in 2009, we surveyed the vegetation of ephemeral ponds in Sabine and Nacogdoches counties in east-central Texas. These ponds are shallow and flat-bottomed, with a small but distinct flora dominated by grasses (Poaceae) and sedges (Cyperaceae). The floras of these ponds are most similar to those of flatwoods ponds located on the lower coastal plain. Once more...

  20. How Community Colleges in Texas Prioritize Resources for Latino Men

    Science.gov (United States)

    Rodriguez, Sarah L.; Garbee, Kelty T.; Miller, Ryan A.; Saenz, Victor B.

    2018-01-01

    This study explored how administrators at community colleges conceptualized change related to resource allocation and managing competing priorities to support targeted programming for Latino men. The study included the perspectives of 39 administrators from seven community colleges across Texas using concepts associated with institutional change…