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Sample records for wells magnetoluminescence determinations

  1. Magnetoluminescence characterization of lattice matched n-type InGaAs/InAlAs MQW`s on InP

    Energy Technology Data Exchange (ETDEWEB)

    Jones, E.D.; Tigges, C.P. [Sandia National Labs., Albuquerque, NM (United States); Kotera, N. [Kyushu Inst. of Tech., Iizuka, Fukuoka (Japan); Mishima, T.; Nakamura, H. [Hitachi Ltd., Kokubunji, Tokyo (Japan). Central Research Lab.; Miura, N. [Univ. of Tokyo (Japan). Inst. for Solid State Physics

    1996-12-31

    A knowledge of the energy-band energies and masses are important parameters for the design of semiconductor lasers and light-emitting diodes. The authors present results of a magnetoluminescence study on n-type (N{sub 2D} {approximately} 1 {times} 10{sup 12} cm{sup {minus}2}) InGaAs/InAlAs multiple quantum wells lattice matched to InP. From an analysis of low-temperature magnetoluminescence data, a simultaneous measurement of the inplane conduction and valence-band masses is made. They find, assuming parabolic bands, that the conduction and valence-band masses are respectively m{sub c} {approx} 0.069m{sub 0} and m{sub v} {approx} 0.061m{sub 0}, where m{sub 0} is the free electron mass. Fitting a nonparabolic conduction-band dispersion curve to the data yields a zone-center mass m{sub c} {approx} 0.056m{sub 0} and m{sub v} {approximately} 0.102m{sub 0}.

  2. Conduction band mass determinations for n-type InGaAs/InAlAs single quantum wells

    Energy Technology Data Exchange (ETDEWEB)

    Jones, E.D.; Reno, J.L. [Sandia National Labs., Albuquerque, NM (United States); Kotera, Nobuo [Kyushu Inst. of Tech., Iizuka, Fukuoka (Japan); Wang, Y. [Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab.

    1998-05-01

    The authors report the measurement of the conduction band mass in n-type single 27-ML-wide InGaAs/InAlAs quantum well lattice matched to InP using two methods: (1) Magnetoluminescence spectroscopy and (2) far-infrared cyclotron resonance. The magnetoluminescence method utilizes Landau level transitions between 0 and 14 T at 1.4 K. The far infrared cyclotron resonance measurements were made at 4.2 K and to fields as large up to 18 T. The 2D-carrier density N{sub 2D} = 3 {times} 10{sup 11} cm{sup {minus}2} at low temperatures. The magnetoluminescence technique yielded an effective conduction-band mass of m{sub c} = 0.062m{sub 0} while the far infrared cyclotron resonance measurements gave m{sub c} = 0.056m{sub 0}, where m{sub 0} is the free electron mass. Both measurements show no evidence for any significant conduction-band nonparabolicity.

  3. Well test imaging - a new method for determination of boundaries from well test data

    Energy Technology Data Exchange (ETDEWEB)

    Slevinsky, B.A.

    1997-08-01

    A new method has been developed for analysis of well test data, which allows the direct calculation of the location of arbitrary reservoir boundaries which are detected during a well test. The method is based on elements of ray tracing and information theory, and is centered on the calculation of an instantaneous {open_quote}angle of view{close_quote} of the reservoir boundaries. In the absence of other information, the relative reservoir shape and boundary distances are retrievable in the form of a Diagnostic Image. If other reservoir information, such as 3-D seismic, is available; the full shape and orientation of arbitrary (non-straight line or circular arc) boundaries can be determined in the form of a Reservoir Image. The well test imaging method can be used to greatly enhance the information available from well tests and other geological data, and provides a method to integrate data from multiple disciplines to improve reservoir characterization. This paper covers the derivation of the analytical technique of well test imaging and shows examples of application of the technique to a number of reservoirs.

  4. Determination of Fracture System Geometry from Well Testing

    International Nuclear Information System (INIS)

    Doe, T.W.

    1994-01-01

    In this paper, the research and development for the description of the hydraulic geometry of fracture networks are discussed. The studies on fracture networks have developed on the premise that the structural geological information on fracture geometries could be used to develop the realistic models of flow. It has been widely recognized that a relatively small portion of natural fracture networks controls a major portion of groundwater flow. The key to efficient network modeling is to identify that portion of networks. It is the main purpose of this paper to discuss the methods for characterizing the hydraulic geometry of fracture flow systems. The methods described in this paper cover three approaches for defining the hydraulic geometry of fracture networks, that is, the determination of conductive fracture frequency in boreholes, the use of transient pressure and flow responses in single holes, and the use of cross hole test to assess connectivity. The information which can be obtained by each test is shown. Flow logging, well test distribution and conductive fracture frequency are discussed. The transient analysis of single hole well test and the cross hole analysis of well test for fracture network geometry are reported. The data taken by various methods together can provide network characterization. (K.I.)

  5. Determination of coal bed quality in wells by geophysical methods

    International Nuclear Information System (INIS)

    Popov, V.V.

    1974-01-01

    The dependence of the specific electric resistivity of coal and terrigenous material of the Donbass region on the degree of their metamorphism is discussed. From this dependence a method is derived to determine the metamorphism of coal from the effective specific resistivity of rocks by taking into account the self-polarisation and the density of the coal layers. The degree of metamorphism (from the coefficient of gas components in the heating mass of coal) is obtained with a standard deviation of 2.9%. Special physical properties of coal are related to its qualitative composition in a complex and very close way. With the whole complex of geophysical measurements the quality parameters can be estimated in more detail. For the Pavlogradsij-Petropavlovskij region of the Donbass non-linear mutli-dimensional relations between the quality parmaeters of coal are derived, and the measurements with standard geophysical methods (resistivity-, spontaneous-potential-, latero-, calibre- and gamma-gamma-log as well as cavernometry) are presented. The results obtained with these methods are tested by a comparison with 8 samples from mines. The standard deviation for the ash content is 3.73% (for core sampling 1.0%) and for the thickness of the plastic layer 3.63 mm (for core sampling 3.34mm)

  6. Principal permeability determination from multiple horizontal well tests

    Energy Technology Data Exchange (ETDEWEB)

    Economides, M. [Texas A and M Univ., TX (United States); Munoz, A.; Ehlig-Economides, C.

    1998-12-31

    A method for obtaining principal permeability magnitudes and direction that requires only the linear flow regime from transient tests in three horizontal wells oriented in three distinct and arbitrary directions, is described. Well design optimization strategies require knowledge of both the principal permeability orientation as well as the horizontal permeability magnitudes. When the degree of horizontal permeability anisotropy (i.e. permeability in the bedding plane with respect to direction) is significant, the productivity of a long horizontal well will depend greatly on its direction, especially when the well is first brought into production. Productivities have been found to deviate substantially among wells in the same reservoir and this deviation has been attributed to differences in well orientation. In view of this fact, measuring permeability anisotropy becomes a compelling necessity. The success of the proposed method is illustrated by a case study in which the principal permeability magnitudes and direction from three wells were used to predict the productivity of a fourth well within 10 per cent. Use of the computed principal permeabilities from the case study, it was possible to forecast the cumulative production to show the significance of well trajectory optimization on the discounted cash flow and the net present value. 20 refs., 3 figs.

  7. Collaborative Learning Indicators as Determinants of Social Well ...

    African Journals Online (AJOL)

    Nneka Umera-Okeke

    AN INTERNATIONAL MULTI-DISCIPLINARY JOURNAL, ... This study investigated collaborative learning indicators as predictors of social well- ... acceptance was the strongest predictor of female students' social well-being, followed ... absence of negative conditions and feelings, the result of adjustment and adaptation to.

  8. Collaborative Learning Indicators as Determinants of Social Well ...

    African Journals Online (AJOL)

    This study investigated collaborative learning indicators as predictors of social well-being among female undergraduates in the University of Abuja, Abuja, Nigeria. The study employed correlational research design. A sample of 250 female students was randomly selected within Faculty of Education. Three reliable ...

  9. Determinants of Subjective Emotional Well-Being and Self-Determination of Employees: Slovene Case

    Directory of Open Access Journals (Sweden)

    Šarotar Žižek Simona

    2017-12-01

    Full Text Available Work is a crucial part of human life. One should attain employees’ well-being (WB to support organisational success. In the first phase, the confirmatory factor analysis (CFA was employed to assess the dimensionality, reliability, and validity of the reflective latent constructs. In the second phase, structural equation modelling was performed to test the research hypotheses. By structural equation modelling we found that physical health (PH statistically significant negatively affects subjective emotional well-being (SEWB. Positive PH and SEWB were negatively connected. Emotional intelligence (EI has a statistically significant impact on SEWB. The last relationship in the model—between spiritual intelligence (SI and self-determination (SD—was negative, but statistically significant. Therefore, human resource management’s activities (HRM must concentrate on optimal physical/mental health, emotional (EI and spiritual (SI intelligence. Employees’ good health supports their emotional WB. Their emotional balance, based on their EI, enhances their subjective emotional WB and SD. The employees ’SI affects their SD.

  10. What determines psychological well-being among Iranian female adolescents? Perceived stress may overshadow all determinants

    Directory of Open Access Journals (Sweden)

    Haleh Heizomi

    2018-01-01

    Full Text Available Background: Mental health problems, as one of the most neglected issues among adolescents,are common during adolescence and emerging adulthood. The aim of present study was to investigate the determinants of psychological well being among female adolescents in Tabriz,Iran.Methods: In this cross-sectional study, multi-stage cluster sampling was employed to recruit 289 female high school students to participate in the study during 2013–2014. A 3-section questionnaire was applied to collect data. Hierarchical linear regression analysis was applied to illustrate the variations in psychological wellbeing score on the basis of socio-demographic and psychological variables.Results: Self-efficacy, hopefulness, happiness and life satisfaction were positively correlated (r> 0.400 and perceived stress was negatively associated with psychological well-being (r =-0.689. In the first model, satisfaction with family lifestyle (β = 0.168, P < 0.001 and perceived stress (β = -0.470, P < 0.001 were the most significant positive and negative predictors for psychological wellbeing, respectively (R2 = 0.595, P < 0.001. In the second model (step 6,physical activity (β = -0.109, P < 0.019, have/had boyfriend (β = 0.237, P < 0.001, hopefulness(β = -0.130, P < 0.05 and happiness (-β = 0.387, P < 0.001 were significant predictors for perceived stress (R2 = 0.453, P < 0.001.Conclusion: Considering the various behavioral, mental and social predictors of psychological wellbeing, it seems that perceived stress has overshadowed the influence of a majority of the other factors. Such influence may be due to the specific cultural and context-based rules enforced for female adolescents in the Iranian community.

  11. Determinants of subjective emotional well-being and self-determination of employees

    OpenAIRE

    Šarotar Žižek, Simona; Mulej, Matjaž; Milfelner, Borut

    2018-01-01

    Work is a crucial part of human life. One should attain employees’ well-being (WB) to support organisational success. In the first phase, the confirmatory factor analysis (CFA) was employed to assess the dimensionality, reliability, and validity of the reflective latent constructs. In the second phase, structural equation modelling was performed to test the research hypotheses. By structural equation modelling we found that physical health (PH) statistically significant negatively affects sub...

  12. Determinants of Subjective Emotional Well-Being and Self-Determination of Employees: Slovene Case

    OpenAIRE

    Šarotar Žižek Simona; Mulej Matjaž; Milfelner Borut

    2017-01-01

    Work is a crucial part of human life. One should attain employees’ well-being (WB) to support organisational success. In the first phase, the confirmatory factor analysis (CFA) was employed to assess the dimensionality, reliability, and validity of the reflective latent constructs. In the second phase, structural equation modelling was performed to test the research hypotheses. By structural equation modelling we found that physical health (PH) statistically significant negatively affects sub...

  13. Military Personnel: Performance Measures Needed to Determine How Well DOD’s Credentialing Program Helps Servicemembers

    Science.gov (United States)

    2016-10-01

    MILITARY PERSONNEL Performance Measures Needed to Determine How Well DOD’s Credentialing Program Helps Servicemembers...Measures Needed to Determine How Well DOD’s Credentialing Program Helps Servicemembers What GAO Found The Department of Defense (DOD) has taken steps to...establish the statutorily required credentialing program, but it has not developed performance measures to gauge the program’s effectiveness

  14. Method of determining the depth of gas entry into the lifter of a gas lift well

    Energy Technology Data Exchange (ETDEWEB)

    Mishalov, N F; Popov, V A

    1981-01-01

    A method is proposed for determining the depth of gas entry into the lifter of a gas lift well, based on the data for measuring downhole and effective pressures. The method is used when analyzing and selecting operating conditions for gas lift wells at the Pravdinsk field.

  15. Pulsed neutron well logging apparatus having means for determining background radiation

    International Nuclear Information System (INIS)

    Randall, R.R.

    1979-01-01

    A neutron generator in a well logging instrument is periodically pulsed and has an off period between pulses of 1000 microseconds. A neutron detector is gated on at intervals of 400 to 500, 550 to 650, and 700 to 800 microseconds, respectively, following the termination of each burst of fast neutrons. Circuitry is provided for determining the background radiation and for determining the macroscopic absorption. 3 claims

  16. Self-Determination Theory: The Importance of Autonomy to Well-Being across Cultures

    Science.gov (United States)

    Wichmann, Sonia Secher

    2011-01-01

    According to proponents of self-determination theory, autonomous regulation is a universal psychological human need. Researchers have found autonomy (defined as acting in accordance with one's values) related to well-being across cultures. Encouraging client autonomy is therefore fundamental to the practice of humanistic counseling.

  17.  Self-determination theory fails to explain additional variance in well-being

    DEFF Research Database (Denmark)

    Olesen, Martin Hammershøj; Schnieber, Anette; Tønnesvang, Jan

    2008-01-01

    This study investigates relations between the five-factor model (FFM) and self-determination theory in predicting well-being. Nine-hundred-and-sixty-four students completed e-based measures of extroversion & neuroticism (NEO-FFI); autonomous- & impersonal general causality orientation (GCOS...... controlling for extroversion (PFFM....

  18. Individual- and community-level determinants of Inuit youth mental wellness.

    Science.gov (United States)

    Gray, Andrew Paul; Richer, Faisca; Harper, Sam

    2016-10-20

    Following the onset of intensive colonial intervention and rapid social change in the lives of Inuit people, youth in Nunavik have experienced high rates of mental health problems and suicide. Inuit people describe a broad range of contextual influences on mental wellness based on lived experience, but most epidemiological studies have focused on individual risk factors and pathologies. This study aimed to assess the influence of multiple determinants of mental wellness among Inuit youth in Nunavik, including culturally meaningful activities, housing and community social characteristics. Mental wellness was measured in the form of two primary outcomes: self-esteem and suicidal ideation. Using cross-sectional data from the 2004 Nunavik Inuit Health Survey and multilevel regression modelling, we estimated associations between these two outcomes and various independent individual- and community-level explanatory factors among Inuit youth. All variables were selected to reflect Inuit perspectives on determinants of mental wellness. The study design and interpretation of results were validated with Inuit community representatives. Pride in Inuit identity, traditional activities, community-level social support and community-level socio-economic status were found to be protective. Barriers to participating in traditional activities, household crowding and high community rates of violence were risk factors. These findings support Inuit perspectives, expand the scope of epidemiological analysis of Inuit mental wellness and reinforce the need for locally informed, community-wide approaches to mental wellness promotion for Inuit youth.

  19. Model for determining the completion and production policy in oil wells

    Energy Technology Data Exchange (ETDEWEB)

    Acurero S, L A

    1983-12-01

    An optimization scheme for reservoir development was examined considering the value of the resource, choice of completion and production techniques, and boundary conditions for the reservoir. A 3-phase semi-analytic single-well model was formulated to determine the reservoir response for any completion and production policy. Second, an optimization scheme based on the discrete version of the maximum principle of Pontryagin and the Fibonacci search method was formulated to determine the optimal production and completion policy. Both models are combined in a general algorithm of solution proposed to solve the optimization problem, and a computer code was developed and tested.

  20. Determination of the water quality and radon content in wells located at the Cuitzeo basin, Michoacan

    International Nuclear Information System (INIS)

    Alfaro, R.; Segovia, N.; Pena, P.; Lopez, M.B.E.; Martinez, V.; Armienta, M.A.; Rangel, J.; Seidel, J.L.

    2001-01-01

    Major elements, trace elements, presence of microorganisms and, radon content in wells located in urban and rural zones around the Cuitzeo lake at the Lerma River basin in Mexico were determined. The techniques to determine the parameters were the liquid scintillation method for 222 Rn, Icp-Ms for trace elements, conventional chemical analysis for major components and the counting in slide for the bacteriological determination. The average concentration of radon oscillated between 0.88 and 4.75 Bq/lt which, indicated a fast transit from the reload toward the spring exit. The major components and trace elements are analysed considering the geological characteristics of the sites in study. Faecal coliforms were not found. (Author)

  1. Technological determinants of the lifetime well-being in the 21th century

    Directory of Open Access Journals (Sweden)

    Zhironkin Sergey

    2016-01-01

    Full Text Available The paper deals with technological determinants of the lifetime social well-being, as conditions of maintaining the level and style of consumption, social status throughout the whole life. Despite the high importance of the problem of the social well-being and the relevance of its solution for the development of modern society, the issues of its correlation with the technological level of production and the development of information technologies are still poorly researched. As the problem of the life-time wellbeing take on special significance, it is important to analyze its conditions, related not only to social benefits, but also to the scientific and technological progress. For the future innovation and the digital stage of social well-being is its network well-being. It is based on the usage of the Internet for professional activity and personal self-fulfillment during the whole conscious life. Network well-being also reflects the convergence of information and network, industrial, financial, marketing, and social technologies. The formation of the life-time network well-being requires from the Government some measures of social adjustment, fiscal policy and the regulation of employment to encourage Internet Education and Internet employment, enhancing the prestige of working in high-tech industries.

  2. Impact of social determinants on well-being of urban construction workers of Hyderabad.

    Science.gov (United States)

    Bala, Sudha; Valsangkar, Sameer; Lakshman Rao, Reshaboyina Lakshmi Narayana; Surya Prabha, Manem Lakshmi

    2016-01-01

    Hyderabad has witnessed one of the largest labor immigration in recent years and these construction workers are highly vulnerable in terms of health. Social determinants of health (SDH) arise from conditions in which they live and these factors interact with each other to produce direct impact on health. (1) To evaluate the sociodemographic and job characteristics of the construction workers. (2) To assess the impact of social determinants on well-being. A sample size of 135 construction workers working at three sites of HITEC city were interviewed using semi-structured questionnaire. Health perception and the impact on well-being was measured using the Healthy Days Module and Kessler's Psychological Distress Scale. SDH were measured on a 27-item questionnaire with responses on a Likert scale ranging from 0 to 4. Proportions, percentages, P values, and mean scores were obtained. The mean age of the sample was 35.4 ± 11.94 years. Seventeen (12.6%) of the workers reported a high risk score on the Kessler's Psychological Distress Scale. Binary logistic regression analysis was used to identify significant domains of social determinants independently associated with the well being of construction workers and significant among the nine domains of social determinants were addiction score domain with odds of 2.259 and a P value of 0.015 and the distress domain with odds of 1.108 and a P < 0.001. There is a significant impairment of physical and mental health due to various factors including SDH, such as addictive habits and psychological distress, which are amenable to prevention.

  3. Identify the Effective Wells in Determination of Groundwater Depth in Urmia Plain Using Principle Component Analysis

    Directory of Open Access Journals (Sweden)

    Sahar Babaei Hessar

    2017-06-01

    Full Text Available Introduction: Groundwater is the most important resource of providing sanitary water for potable and household consumption. So continuous monitoring of groundwater level will play an important role in water resource management. But because of the large amount of information, evaluation of water table is a costly and time consuming process. Therefore, in many studies, the data and information aren’t suitable and useful and so, must be neglected. The PCA technique is an optimized mathematical method that reserve data with the highest share in affirming variance with recognizing less important data and limits the original variables into to a few components. In this technique, variation factors called principle components are identified with considering data structures. Thus, variables those have the highest correlation coefficient with principal components are extracted as a result of identifying the components that create the greatest variance. Materials and Methods: The study region has an area of approximately 962 Km2 and area located between 37º 21´ N to 37º 49´ N and 44º 57´ E to 45º 16´ E in West Azerbaijan province of Iran. This area placed along the mountainous north-west of the country, which ends with the plane Urmia Lake and has vast groundwater resources. However, recently the water table has been reduced considerably because of the exceeded exploitation as a result of urbanization and increased agricultural and horticultural land uses. In the present study, the annual water table datasets in 51wells monitored by Ministry of Energy during statistical periods of 2002-2011 were used to data analysis. In order to identify the effective wells in determination of groundwater level, the PCA technique was used. In this research to compute the relative importance of each well, 10 wells were identified with the nearest neighbor for each one. The number of wells (p as a general rule must be less or equal to the maximum number of

  4. Pulsed neutron well logging apparatus having means for determining background radiation

    International Nuclear Information System (INIS)

    Randall, R.R.

    1979-01-01

    A neutron generator in a well logging instrument is periodically pulsed and has an off period between pulses of 1000 microseconds. A neutron detector is gated on at intervals of 400 to 500, 550 to 650, and 700 to 800 microseconds, respectively, following the termination of each burst of fast neutrons. Circuitry is provided for determining the background radiation by the equation: B = N 1 X N 3 - N 2 2 /N 1 + N 3 - 2N 2 where B is the background, and N 1 , N 2 and N 3 are the counts observed during the three gates, respectively. Circuitry is also provided for determining the macroscopic absorption (Σ) from the equation: Σ = 1/VΔt Log [N 1 - B/N 2 - B] where V is the velocity of thermal neutrons, being a constant and Δt represents an increment of time

  5. Self-determination theory and the facilitation of intrinsic motivation, social development, and well-being.

    Science.gov (United States)

    Ryan, R M; Deci, E L

    2000-01-01

    Human beings can be proactive and engaged or, alternatively, passive and alienated, largely as a function of the social conditions in which they develop and function. Accordingly, research guided by self-determination theory has focused on the social-contextual conditions that facilitate versus forestall the natural processes of self-motivation and healthy psychological development. Specifically, factors have been examined that enhance versus undermine intrinsic motivation, self-regulation, and well-being. The findings have led to the postulate of three innate psychological needs--competence, autonomy, and relatedness--which when satisfied yield enhanced self-motivation and mental health and when thwarted lead to diminished motivation and well-being. Also considered is the significance of these psychological needs and processes within domains such as health care, education, work, sport, religion, and psychotherapy.

  6. Total Participation Management: Toward Psychological Determinants of Subjective Well-Being at Work

    Directory of Open Access Journals (Sweden)

    Katarzyna Mika

    2013-01-01

    Full Text Available Aiming to determine which management practice has the strongest influence on the subjective well-being (SWB of employees, three workplaces were assessed with reference to different levels of total participation management (TPM, an innovative approach to human resource management. The study examined whether the level of TPM is positively related with SWB, defined according to Diener’s (1984 affective and cognitive facets of work. The psychological explanation of the predicted dependence was the level of satisfaction of three basic needs (autonomy, competence and relatedness distinguished by Deci and Ryan (2000a. The hypothesis about a positive relationship between SWB and TPM was confirmed. Results indicate that the least participative company has employees with the lowest subjective well-being and with the lowest satisfaction of basic psychological needs.

  7. A Novel Acoustic Liquid Level Determination Method for Coal Seam Gas Wells Based on Autocorrelation Analysis

    Directory of Open Access Journals (Sweden)

    Ximing Zhang

    2017-11-01

    Full Text Available In coal seam gas (CSG wells, water is periodically removed from the wellbore in order to keep the bottom-hole flowing pressure at low levels, facilitating the desorption of methane gas from the coal bed. In order to calculate gas flow rate and further optimize well performance, it is necessary to accurately monitor the liquid level in real-time. This paper presents a novel method based on autocorrelation function (ACF analysis for determining the liquid level in CSG wells under intense noise conditions. The method involves the calculation of the acoustic travel time in the annulus and processing the autocorrelation signal in order to extract the weak echo under high background noise. In contrast to previous works, the non-linear dependence of the acoustic velocity on temperature and pressure is taken into account. To locate the liquid level of a coal seam gas well the travel time is computed iteratively with the non-linear velocity model. Afterwards, the proposed method is validated using experimental laboratory investigations that have been developed for liquid level detection under two scenarios, representing the combination of low pressure, weak signal, and intense noise generated by gas flowing and leakage. By adopting an evaluation indicator called Crest Factor, the results have shown the superiority of the ACF-based method compared to Fourier filtering (FFT. In the two scenarios, the maximal measurement error from the proposed method was 0.34% and 0.50%, respectively. The latent periodic characteristic of the reflected signal can be extracted by the ACF-based method even when the noise is larger than 1.42 Pa, which is impossible for FFT-based de-noising. A case study focused on a specific CSG well is presented to illustrate the feasibility of the proposed approach, and also to demonstrate that signal processing with autocorrelation analysis can improve the sensitivity of the detection system.

  8. Determining optimal preventive maintenance interval for component of Well Barrier Element in an Oil & Gas Company

    Science.gov (United States)

    Siswanto, A.; Kurniati, N.

    2018-04-01

    An oil and gas company has 2,268 oil and gas wells. Well Barrier Element (WBE) is installed in a well to protect human, prevent asset damage and minimize harm to the environment. The primary WBE component is Surface Controlled Subsurface Safety Valve (SCSSV). The secondary WBE component is Christmas Tree Valves that consist of four valves i.e. Lower Master Valve (LMV), Upper Master Valve (UMV), Swab Valve (SV) and Wing Valve (WV). Current practice on WBE Preventive Maintenance (PM) program is conducted by considering the suggested schedule as stated on manual. Corrective Maintenance (CM) program is conducted when the component fails unexpectedly. Both PM and CM need cost and may cause production loss. This paper attempts to analyze the failure data and reliability based on historical data. Optimal PM interval is determined in order to minimize the total cost of maintenance per unit time. The optimal PM interval for SCSSV is 730 days, LMV is 985 days, UMV is 910 days, SV is 900 days and WV is 780 days. In average of all components, the cost reduction by implementing the suggested interval is 52%, while the reliability is improved by 4% and the availability is increased by 5%.

  9. Determination of natural radioactivity in irrigation water of drilled wells in northwestern Saudi Arabia.

    Science.gov (United States)

    Alkhomashi, N; Al-Hamarneh, Ibrahim F; Almasoud, Fahad I

    2016-02-01

    The levels of natural radiation in bedrock groundwater extracted from drilled wells in selected farms in the northwestern part of Saudi Arabia were addressed. The investigated waters form a source of irrigation for vegetables, agricultural crops, wheat, and alfalfa to feed livestock consumed by the general public. Information about water radioactivity in this area is not available yet. Therefore, this study strives to contribute to the quality assessment of the groundwater of these wells that are drilled into the non-renewable Saq sandstone aquifer. Hence, gross alpha and beta activities as well as the concentrations of (224)Ra, (226)Ra, (228)Ra, (234)U, (238)U, and U(total) were measured, compared to national and international limits and contrasted with data quoted from the literature. Correlations between the activities of the analyzed radionuclides were discussed. The concentrations of gross alpha and beta activities as well as (228)Ra were identified by liquid scintillation counting whereas alpha spectrometry was used to determine (224)Ra, (226)Ra, (234)U and (238)U after separation from the matrix by extraction chromatography. The mean activity concentrations of gross α and β were 3.15 ± 0.26 Bq L(-1) and 5.39 ± 0.44 Bq L(-1), respectively. Radium isotopes ((228)Ra and (226)Ra) showed mean concentrations of 3.16 ± 0.17 Bq L(-1) and 1.12 ± 0.07 Bq L(-1), respectively, whereas lower levels of uranium isotopes ((234)U and (238)U) were obtained. Copyright © 2015 Elsevier Ltd. All rights reserved.

  10. Determination of water saturation in subsurface earth formations adjacent well boreholes

    International Nuclear Information System (INIS)

    Scott, Hubert D.

    1982-01-01

    There is provided a method of determining the water saturation of an earth formation surrounding a well borehole, comprising the steps of: (a) bombarding the earth formation with repetitive pulses of fast neutrons which are slowed down and thereafter engage in neutron capture reactions with materials in the vicinity of the borehole; (b) obtaining by use of a germanium gamma ray detector gamma ray spectra of the materials in the vicinity of the borehole; (c) obtaining from the gamma ray spectra a measure of the relative presence of chlorine to that of hydrogen in the formation; (d) obtaining a measure of apparent formation water salinity from the measure of relative presence of chlorine to hydrogen in the formation; and (e) obtaining the water saturation of the formation utilizing the apparent formation water salinity

  11. 30 CFR 250.116 - How do I determine producibility if my well is in the Gulf of Mexico?

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false How do I determine producibility if my well is in the Gulf of Mexico? 250.116 Section 250.116 Mineral Resources MINERALS MANAGEMENT SERVICE... Performance Standards § 250.116 How do I determine producibility if my well is in the Gulf of Mexico? If your...

  12. Testing the Main Determinants of Teachers' Professional Well-Being by Using a Mixed Method

    Science.gov (United States)

    Yildirim, Kamil

    2015-01-01

    Measuring the perception of professional well-being appears as a problematic issue in past studies. Literature reviews show that previous studies have not yet reached an agreement on measures of teachers' professional well-being. Furthermore, when we consider the cultural context, a research gap becomes clearer. The aim of this study was to…

  13. Comparing Parental Well-Being and Its Determinants across Three Different Genetic Disorders Causing Intellectual Disability

    Science.gov (United States)

    Mori, Yuka; Downs, Jenny; Wong, Kingsley; Heyworth, Jane; Leonard, Helen

    2018-01-01

    Using the Short Form 12 Health Survey this cross-sectional study examined parental well-being in caregivers of children with one of three genetic disorders associated with intellectual disability; Down syndrome, Rett syndrome and the CDKL5 disorder. Data were sourced from the Western Australian Down Syndrome (n = 291), Australian Rett Syndrome (n…

  14. Comparison of Hydraulic Conductivity Determinations in Co-located Conventional and Direct-Push Monitoring Wells

    Science.gov (United States)

    2011-03-08

    and Development Center (ERDC) provided the funding for this project. We wish to thank our project monitors Tony Bednar (ERDC Environmental Laboratory...method for field determination of hy- draulic conductivity at contaminated sites (Butler 1997; Henebry and Robbins 2000; Bartlett et al. 2004). For a...ASTM International. www.astm.org Bartlett, Stephen A., Gary A. Robbins , J. Douglas Mandrick, Michael Barcelona, Wes McCall, and Mark Kram. 2004

  15. DNA-DNA hybridization determined in micro-wells using covalent attachment of DNA

    DEFF Research Database (Denmark)

    Christensen, H.; Angen, Øystein; Mutters, R.

    2000-01-01

    The present study was aimed at reducing the time and labour used to perform DNA-DNA hybridizations for classification of bacteria at the species level. A micro-well-format DNA hybridization method was developed and validated. DNA extractions were performed by a small-scale method and DNA...... was sheared mechanically into fragments of between 400 and 700 bases. The hybridization conditions were calibrated according to DNA similarities obtained by the spectrophotometric method using strains within the family Pasteurellaceae, Optimal conditions were obtained with 300 ng DNA added per well and bound...... by covalent attachment to NucleoLink. Hybridization was performed with 500 ng DNA, 5% (w/w) of which was labelled with photo-activatable biotin (competitive hybridization) for 2.5 h at 65 degrees C in 2 x SSC followed by stringent washing with 2 x SSC at the same temperature. The criteria for acceptance...

  16. Capillary electrophoretic determination of selected phenolic compounds in humic substances of well waters and fertilizers.

    Science.gov (United States)

    Chen, Mei-Ying; Chang, Yan-Zin; Lu, Fung-Jou; Chen, Jian-Lian

    2010-01-01

    Humic substances (HS) from well waters, fertilizers, and synthetic phenolic polymers were characterized by elemental and UV-VIS spectroscopic analyses. Capillary zone electrophoresis (CZE) with UV absorption detection was used to analyze the lignin-derived phenolic distribution in the degradation residues after alkaline CuO oxidation of HS samples. Eleven phenols with p-acetyl, vanillyl and syringyl substituents were selected to optimize the CZE parameters. For well waters and fertilizers, the content of phenolic fragments was in agreement with the findings of the elemental and spectroscopic measurements. Additionally, parameters derived from the vanillic acid/vanilline, syringyl acid/syringaldehyde, p-hydroxyl/vanillyl and syringyl/vanillyl ratios matched analogous studies on dissolved organic matter from natural waters and on humic acids from terrestrial substances. The amount of phenolic monomer bonded within two synthetic HS polymers was found to be 25.9% protocatechuic acid and 71.3% gallic acid.

  17. Well-defined azazirconacyclopropane complexes supported on silica structurally determined by 2D NMR comparative elucidation

    KAUST Repository

    El Eter, Mohamad; Hamzaoui, Bilel; Abou-Hamad, Edy; Pelletier, Jeremie; Basset, Jean-Marie

    2013-01-01

    Grafting of Zr(NMe2)4 on mesoporous silica SBA-15 afforded selectively well-defined surface species SiOZr(NMe2) (η2NMeCH2). 2D solid-state NMR (1H- 13C HETCOR, Multiple Quantum) experiments have shown a unique structural rearrangement occurring on the immobilised zirconium bis methylamido ligand. © The Royal Society of Chemistry 2013.

  18. Method and apparatus for determining fluid circulation conditions in well drilling operations

    Energy Technology Data Exchange (ETDEWEB)

    Gehrig, G.F.; Speers, J.M.

    1986-09-09

    A system is described for monitoring the delta flow-rate of drilling fluid in the course of circulating drilling fluid through a well from a drilling rig, comprising: an inflow flowmeter adapted for establishing a first signal representing the rate at which drilling fluid is injected into the well from the drilling rig; an outflow flowmeter adapted for establishing a second signal representing the rate at which drilling fluid is returned to the drilling rig from the well; and a signal processing system adapted for receiving the first and second signals and calculating a third signal representing the filtered difference between the first and second signals, the signal processing system being adapted to repeatedly update the degree of filtering applied in calculating the third signal in accordance with a relation serving to increase the degree of filtering in response to an increase in the magnitude of the cyclical variations in the rate at which drilling fluid is returned to the drilling rig and to decrease the degree of filtering in response to a decrease in the magnitude of the cyclical variations in the rate at which drilling fluid is returned to the drilling rig.

  19. Determination of natural radioactivity in drinking water in private dug wells in Akure, Southwestern Nigeria

    International Nuclear Information System (INIS)

    Ajayi, O.S.; Owolabi, T.P.

    2007-01-01

    Complete text of publication follows. A gamma-ray survey and analysis of drinking water from 20 private dug wells from Akure, Southwestern Nigeria have been conducted in this work. These were done in order to quantify the activity concentrations of the gamma emitters 226 Ra and 228 Ra from 238 U and 232 Th series respectively as well as 40 K in these private well waters. Measurements were done using high-resolution high-purity (HPGe) vertical co-axial detectors (Canberra, GC 2018- 7500 model) coupled to a Canberra Multichannel Analyzer (MCA) computer system. Activity concentrations ranged from 0.57 to 26.86Bq l -1 , 0.20 to 60.06Bq l -1 and 0.35 to 29.01Bq l -1 for 226 Ra, 228 Ra and 40 K respectively. The measured radionuclide concentrations were compared with data from other parts of the world and used to estimated annual effective dose for age groups -1 , 0.02 to 38.80mSv y -1 and 0.05 to 481.60mSv y -1 for age group < 1y, 2-7y and ≥ 17y respectively. The total annual effective doses were considerably higher than both the World Health Organisation (WHO) and the International Commission on Radiological Protection (ICRP) recommended limits.

  20. Determination of the neutron spectrum in the well Naiade attached to the reactor Nereide

    International Nuclear Information System (INIS)

    Capgras, Andree; Clement, Christophe; Sueur, Maurice.

    1977-11-01

    The spectral distribution of neutrons in the centre of the well Naiade attached to the Fontenay-aux-Roses reactor Nereide is studied. In the thermal, epithermal and over 2.2 MeV regions, activation detectors are used: 197 Au and 55 Mn (bare and under cadmium), and 58 Ni. In the energy band from a few keV to 2.2 MeV two recoil proton proportional counters are employed. Under these conditions the whole spectrum is studied, but some comments are made on the difficulties of interpreting the results obtained by either of these methods [fr

  1. Paleomagnetic record determined in cores from deep research wells in the Quaternary Santa Clara basin, California

    Science.gov (United States)

    Mankinen, Edward A.; Wentworth, Carl M.

    2016-01-01

    Paleomagnetic study of cores from six deep wells provides an independent temporal framework for much of the alluvial stratigraphy of the Quaternary basin beneath the Santa Clara Valley. This stratigraphy consists of 8 upward-fining cycles in the upper 300 m of section and an underlying 150 m or more of largely fine-grained sediment. The eight cycles have been correlated with the marine oxygen isotope record, thus providing one means of dating the section. The section has also proved to contain a rich paleomagnetic record despite the intermittent sedimentation characteristic of alluvial environments.

  2. Oil well fires of Operation Desert Storm--defining troop exposures and determining health risks.

    Science.gov (United States)

    Heller, Jack M

    2011-07-01

    During Operation Desert Storm, in February 1991, Iraqi troops began burning Kuwaiti oil wells. Almost immediately there was concern about possible adverse health effects in U.S. personnel exposed to crude oil combustion products. Combustions products were predicted from the known composition of Kuwaiti crude oil. Monitoring sites were established in Saudi Arabia and Kuwait; about 5,000 environmental samples were studied. Data collected were used to develop health risk assessments for the geographic areas sampled. This initial approach to assessing risk had to be greatly expanded when Congress passed Public Law 102-190, requiring development of means to calculate environmental exposures for individual U.S. service members. To estimate daily exposure levels for the entire area over 10 months for all U.S. troops, air dispersion modeling was used in conjunction with satellite imagery and geographic information system technology. This methodology made it possible to separate the risk caused by oil fire smoke from the total risk from all sources for each service member. The U.S. military responses to health concerns related to the oil well fires and to Public Law 102-190 were reviewed. Consideration was given to changes in technology, practices, and policies over the last two decades that might impact a similar contemporary response.

  3. An automated NaI 'well' counting system for the determination of radiocaesium

    International Nuclear Information System (INIS)

    Andrews, D.J.; Sutton, G.A.

    1993-01-01

    During the past five years the number of sea and freshwater samples collected by the (DFR) for radiocaesium analysis has increased significantly due to the extended monitoring programme following the Chernobyl accident. Counting times have increased because of the general reduction in levels of radioactivity following the introduction of a new effluent-treatment plant at British Nuclear Fuels's reprocessing plant at Sellafield. The large number of samples and the low levels of radioactivity have resulted in the requirement for an additional, highly sensitive, gamma counting system. This paper describes the design and development of an improved automated gamma counting system suitable for the determination of low levels of radiocaesium activity in these samples. (author)

  4. Determination of protection zones for Dutch groundwater wells against virus contamination--uncertainty and sensitivity analysis.

    Science.gov (United States)

    Schijven, J F; Mülschlegel, J H C; Hassanizadeh, S M; Teunis, P F M; de Roda Husman, A M

    2006-09-01

    Protection zones of shallow unconfined aquifers in The Netherlands were calculated that allow protection against virus contamination to the level that the infection risk of 10(-4) per person per year is not exceeded with a 95% certainty. An uncertainty and a sensitivity analysis of the calculated protection zones were included. It was concluded that protection zones of 1 to 2 years travel time (206-418 m) are needed (6 to 12 times the currently applied travel time of 60 days). This will lead to enlargement of protection zones, encompassing 110 unconfined groundwater well systems that produce 3 x 10(8) m3 y(-1) of drinking water (38% of total Dutch production from groundwater). A smaller protection zone is possible if it can be shown that an aquifer has properties that lead to greater reduction of virus contamination, like more attachment. Deeper aquifers beneath aquitards of at least 2 years of vertical travel time are adequately protected because vertical flow in the aquitards is only 0.7 m per year. The most sensitive parameters are virus attachment and inactivation. The next most sensitive parameters are grain size of the sand, abstraction rate of groundwater, virus concentrations in raw sewage and consumption of unboiled drinking water. Research is recommended on additional protection by attachment and under unsaturated conditions.

  5. On higher ground: how well can dynamic body acceleration determine speed in variable terrain?

    Directory of Open Access Journals (Sweden)

    Owen R Bidder

    Full Text Available INTRODUCTION: Animal travel speed is an ecologically significant parameter, with implications for the study of energetics and animal behaviour. It is also necessary for the calculation of animal paths by dead-reckoning. Dead-reckoning uses heading and speed to calculate an animal's path through its environment on a fine scale. It is often used in aquatic environments, where transmission telemetry is difficult. However, its adoption for tracking terrestrial animals is limited by our ability to measure speed accurately on a fine scale. Recently, tri-axial accelerometers have shown promise for estimating speed, but their accuracy appears affected by changes in substrate and surface gradients. The purpose of the present study was to evaluate four metrics of acceleration; Overall dynamic body acceleration (ODBA, vectorial dynamic body acceleration (VDBA, acceleration peak frequency and acceleration peak amplitude, as proxies for speed over hard, soft and inclined surfaces, using humans as a model species. RESULTS: A general linear model (GLM showed a significant difference in the relationships between the metrics and speed depending on substrate or surface gradient. When the data from all surface types were considered together, VeDBA had the highest coefficient of determination. CONCLUSIONS: All of the metrics showed some variation in their relationship with speed according to the surface type. This indicates that changes in the substrate or surface gradient during locomotion by animals would produce errors in speed estimates, and also in dead-reckoned tracks if they were calculated from speeds based entirely on a priori calibrations. However, we describe a method by which the relationship between acceleration metrics and speed can be corrected ad hoc, until tracks accord with periodic ground truthed positions, obtained via a secondary means (e.g. VHF or GPS telemetry. In this way, dead-reckoning provides a means to obtain fine scale movement data

  6. Jumping magneto-electric states of electrons in semiconductor multiple quantum wells

    International Nuclear Information System (INIS)

    Pfeffer, Pawel; Zawadzki, Wlodek

    2011-01-01

    Orbital and spin electron states in semiconductor multiple quantum wells in the presence of an external magnetic field transverse to the growth direction are considered. Rectangular wells of GaAs/GaAlAs and InAs/AlSb are taken as examples. It is shown that, in addition to magneto-electric states known from one-well systems, there appear magneto-electric states having a much stronger dependence of energies on a magnetic field and exhibiting an interesting anti-crossing behavior. The origin of these states is investigated and it is shown that the strong field dependence of the energies is related to an unusual 'jumping' behavior of their wavefunctions between quantum wells as the field increases. The ways of investigating the jumping states by means of interband magneto-luminescence transitions or intraband cyclotron-like transitions are considered and it is demonstrated that the jumping states can be observed. The spin g factors of electrons in the jumping states are calculated using the real values of the spin–orbit interaction and bands' nonparabolicity for the semiconductors in question. It is demonstrated that the jumping states offer a wide variety of the spin g factors

  7. Structural and intermediary determinants of social inequalities in the mental well-being of European workers: a relational approach.

    Science.gov (United States)

    De Moortel, Deborah; Vandenheede, Hadewijch; Muntaner, Carles; Vanroelen, Christophe

    2014-09-09

    The objective of this study is to examine social inequalities in employee mental well-being, using relational social class indicators. Relational social class indicators are based on theoretical insights about the mechanisms generating social (health) inequalities. Additionally, it is examined whether the psychosocial work environment and employment quality act as intermediary determinants of social class inequalities in mental well-being, simultaneously testing the mediation (differential exposure) and moderation (differential vulnerability) hypotheses. Data from the European Social Survey Round 2 (2004/5) and Round 5 (2010) were analysed. Mental well-being was assessed by the WHO Well-being Index. The measure for social class was inspired by E.O. Wright's class scheme. Three-level linear multilevel modelling was used to account for clustering of employees within research years and countries. We found social class inequalities in mental well-being in the European working population for both men and women. Compared to unskilled workers, managers reported the best mental well-being, while supervisors held an intermediary position. As regards the mediation hypothesis, an unfavourable psychosocial work environment and low-quality employment conditions mediated the relation between social class and poor mental well-being in both men and women. However, low quality of employment relations only mediated the "social class-mental well-being" association in the male sample. As regards the moderation hypothesis, modification effects were seen for the psychosocial work environment and employment conditions in both men and women. Relational indicators of social class are related to mental well-being in European employees. Relational accounts of social class are complementary to stratification indicators in social epidemiology. From a policy perspective, better employee mental well-being and less social class inequality could be achieved through initiatives addressing the

  8. Use of well points to determine the thickness and extent of floating product atop the water table

    International Nuclear Information System (INIS)

    Liikala, T.L.; Lewis, R.; Gilmore, T.; Hoffmann, H.

    1994-01-01

    The release of petroleum products to the ground water is a widespread problem. Conventional plume tracking techniques are to drill wells and measure product thickness and extent. In this study, well points were installed to rapidly and inexpensively determine the thickness and extent of floating product atop the water table. Spills and leaks of JP-4 have produced a discrete full layer atop the water table at one site at Eielson Air Force Base near Fairbanks, Alaska. The 0.2- to 1.3-foot-thick layer was identified in two ground water monitoring wells at a depth of approximately 10 feet. The layer is contained within unconsolidated glaciofluvial sands and gravels. A comprehensive assessment of the product thickness and extent was necessary for the site remedial investigation/feasibility study. The emplacement of additional monitoring wells was discouraged because of time and budget constraints. The fuel layer was delineated with 18 screened well points. The points consist of 2-inch-diameter galvanized steel pipe. The points were driven into the floating products with a hollow-stem auger rig sampling hammer. The product thickness was measured with an interface probe. The presence of floating product could be measured immediately after emplacement; the product thickness measurements typically stabilized within three days. The product thickness compared favorably with those measured in adjacent monitoring wells

  9. Determinants of subjective well-being in people with psychosis referred for psychological therapy in South London.

    Science.gov (United States)

    Broyd, Annabel; Jolley, Suzanne; Johns, Louise

    2016-11-01

    Improving subjective well-being (SWB) for people with mental health problems is a United Kingdom national health priority and is increasingly important in justifying funding of mental health services. Aside from the economic advantages, maximizing SWB confers obvious individual and clinical benefits for people with severe mental illness, such as psychosis. Gaining a better understanding of well-being and its determinants will enable current evidence-based interventions to be targeted and refined appropriately. This study therefore sought to identify the cross-sectional correlates of SWB in an Improving Access to Psychological Therapies for people with Severe Mental Illness psychosis demonstration site, to inform a future longitudinal investigation. Participants with a psychosis or bipolar spectrum diagnosis referred to the demonstration site (n = 410) rated SWB as part of their initial assessment before starting psychological therapy. Potential influencing factors including age, gender, ethnicity, employment status, illness duration, perceived social support, perceived coping, and psychotic symptoms (voices and beliefs) were also assessed. Regression analyses showed that unemployment (β = -.16, p therapy to meet national requirements to prioritize well-being outcomes. Average well-being in people with psychosis was lower than SWB previously reported for the general population. Unemployment, lack of social support, poorer coping, and distressing beliefs were all associated with lower levels of well-being in people with psychosis. Psychological interventions targeting the positive symptoms of psychosis may impact on well-being. Greater focus on promoting social contact and inclusion and facilitating a return to employment may further improve well-being outcomes following psychological intervention. The cross-sectional design of the study does not allow for firm conclusions about the causal relationship between well-being and associated factors in psychosis. The

  10. Racism, ethnic density and psychological well-being through adolescence: evidence from the Determinants of Adolescent Social well-being and Health longitudinal study

    Science.gov (United States)

    Astell-Burt, Thomas; Maynard, Maria J.; Lenguerrand, Erik; Harding, Seeromanie

    2012-01-01

    Objective. To investigate the effect of racism, own-group ethnic density, diversity and deprivation on adolescent trajectories in psychological well-being. Design. Multilevel models were used in longitudinal analysis of psychological well-being (total difficulties score (TDS) from Goodman's Strengths and Difficulties Questionnaire, higher scores correspond to greater difficulties) for 4782 adolescents aged 11–16 years in 51 London (UK) schools. Individual level variables included ethnicity, racism, gender, age, migrant generation, socioeconomic circumstances, family type and indicators of family interactions (shared activities, perceived parenting). Contextual variables were per cent eligible for free school-meals, neighbourhood deprivation, per cent own-group ethnic density, and ethnic diversity. Results. Ethnic minorities were more likely to report racism than Whites. Ethnic minority boys (except Indian boys) and Indian girls reported better psychological well-being throughout adolescence compared to their White peers. Notably, lowest mean TDS scores were observed for Nigerian/Ghanaian boys, among whom the reporting of racism increased with age. Adjusted for individual characteristics, psychological well-being improved with age across all ethnic groups. Racism was associated with poorer psychological well-being trajectories for all ethnic groups (p ethnic density and diversity were not consistently associated with TDS for any ethnic group. Living in more deprived neighbourhoods was associated with poorer psychological well-being for Whites and Black Caribbeans (p ethnic density and deprivation in schools or neighbourhoods, was an important influence on psychological well-being. However, exposure to racism did not explain the advantage in psychological well-being of ethnic minority groups over Whites. PMID:22332834

  11. Racism, ethnic density and psychological well-being through adolescence: evidence from the Determinants of Adolescent Social well-being and Health longitudinal study

    OpenAIRE

    Astell-Burt, Thomas; Maynard, Maria J.; Lenguerrand, Erik; Harding, Seeromanie

    2012-01-01

    Objective. To investigate the effect of racism, own-group ethnic density, diversity and deprivation on adolescent trajectories in psychological well-being. Design. Multilevel models were used in longitudinal analysis of psychological well-being (total difficulties score (TDS) from Goodman's Strengths and Difficulties Questionnaire, higher scores correspond to greater difficulties) for 4782 adolescents aged 11–16 years in 51 London (UK) schools. Individual level variables included ethnicity, r...

  12. Racism, ethnic density and psychological well-being through adolescence: evidence from the Determinants of Adolescent Social Well-Being and Health longitudinal study.

    Science.gov (United States)

    Astell-Burt, Thomas; Maynard, Maria J; Lenguerrand, Erik; Harding, Seeromanie

    2012-01-01

    To investigate the effect of racism, own-group ethnic density, diversity and deprivation on adolescent trajectories in psychological well-being. Multilevel models were used in longitudinal analysis of psychological well-being (total difficulties score (TDS) from Goodman's Strengths and Difficulties Questionnaire, higher scores correspond to greater difficulties) for 4782 adolescents aged 11-16 years in 51 London (U.K.) schools. Individual level variables included ethnicity, racism, gender, age, migrant generation, socio-economic circumstances, family type and indicators of family interactions (shared activities, perceived parenting). Contextual variables were per cent eligible for free school-meals, neighbourhood deprivation, per cent own-group ethnic density, and ethnic diversity. Ethnic minorities were more likely to report racism than whites. Ethnic minority boys (except Indian boys) and Indian girls reported better psychological well-being throughout adolescence compared to their white peers. Notably, lowest mean TDS scores were observed for Nigerian/Ghanaian boys, among whom the reporting of racism increased with age. Adjusted for individual characteristics, psychological well-being improved with age across all ethnic groups. Racism was associated with poorer psychological well-being trajectories for all ethnic groups (pwell-being for whites and black Caribbeans (pwell-being. However, exposure to racism did not explain the advantage in psychological well-being of ethnic minority groups over whites.

  13. The role of need fulfillment in relationship functioning and well-being: a self-determination theory perspective.

    Science.gov (United States)

    Patrick, Heather; Knee, C Raymond; Canevello, Amy; Lonsbary, Cynthia

    2007-03-01

    Self-determination theory posits 3 basic psychological needs: autonomy (feeling uncoerced in one's actions), competence (feeling capable), and relatedness (feeling connected to others). Optimal well-being results when these needs are satisfied, though this research has traditionally focused on individual well-being outcomes (e.g., E. L. Deci & R. M. Ryan, 2000). Three studies examined the role of need fulfillment in relationship functioning and well-being. Study 1 found that fulfillment of each need individually predicted both individual and relationship well-being, with relatedness being the strongest unique predictor of relationship outcomes. Study 2 found that both partners' need fulfillment uniquely predicted one's own relationship functioning and well-being. Finally, in Study 3, the authors used a diary recording procedure and tested a model in which the association between need fulfillment and relationship quality was mediated by relationship motivation. Those who experienced greater need fulfillment enjoyed better postdisagreement relationship quality primarily because of their tendency to have more intrinsic or autonomous reasons for being in their relationship. 2007 APA, all rights reserved

  14. Addressing Social Determinants of Health in a Clinic Setting: The WellRx Pilot in Albuquerque, New Mexico.

    Science.gov (United States)

    Page-Reeves, Janet; Kaufman, Will; Bleecker, Molly; Norris, Jeffrey; McCalmont, Kate; Ianakieva, Veneta; Ianakieva, Dessislava; Kaufman, Arthur

    2016-01-01

    Although it is known that the social determinants of health have a larger influence on health outcomes than health care, there currently is no structured way for primary care providers to identify and address nonmedical social needs experienced by patients seen in a clinic setting. We developed and piloted WellRx, an 11-question instrument used to screen 3048 patients for social determinants in 3 family medicine clinics over a 90-day period. Results showed that 46% of patients screened positive for at least 1 area of social need, and 63% of those had multiple needs. Most of these needs were previously unknown to the clinicians. Medical assistants and community health workers then offered to connect patients with appropriate services and resources to address the identified needs. The WellRx pilot demonstrated that it is feasible for a clinic to implement such an assessment system, that the assessment can reveal important information, and that having information about patients' social needs improves provider ease of practice. Demonstrated feasibility and favorable outcomes led to institutionalization of the WellRx process at a university teaching hospital and influenced the state department of health to require managed care organizations to have community health workers available to care for Medicaid patients. © Copyright 2016 by the American Board of Family Medicine.

  15. Integration of ANFIS, NN and GA to determine core porosity and permeability from conventional well log data

    Science.gov (United States)

    Ja'fari, Ahmad; Hamidzadeh Moghadam, Rasoul

    2012-10-01

    Routine core analysis provides useful information for petrophysical study of the hydrocarbon reservoirs. Effective porosity and fluid conductivity (permeability) could be obtained from core analysis in laboratory. Coring hydrocarbon bearing intervals and analysis of obtained cores in laboratory is expensive and time consuming. In this study an improved method to make a quantitative correlation between porosity and permeability obtained from core and conventional well log data by integration of different artificial intelligent systems is proposed. The proposed method combines the results of adaptive neuro-fuzzy inference system (ANFIS) and neural network (NN) algorithms for overall estimation of core data from conventional well log data. These methods multiply the output of each algorithm with a weight factor. Simple averaging and weighted averaging were used for determining the weight factors. In the weighted averaging method the genetic algorithm (GA) is used to determine the weight factors. The overall algorithm was applied in one of SW Iran’s oil fields with two cored wells. One-third of all data were used as the test dataset and the rest of them were used for training the networks. Results show that the output of the GA averaging method provided the best mean square error and also the best correlation coefficient with real core data.

  16. Integration of ANFIS, NN and GA to determine core porosity and permeability from conventional well log data

    International Nuclear Information System (INIS)

    Ja’fari, Ahmad; Moghadam, Rasoul Hamidzadeh

    2012-01-01

    Routine core analysis provides useful information for petrophysical study of the hydrocarbon reservoirs. Effective porosity and fluid conductivity (permeability) could be obtained from core analysis in laboratory. Coring hydrocarbon bearing intervals and analysis of obtained cores in laboratory is expensive and time consuming. In this study an improved method to make a quantitative correlation between porosity and permeability obtained from core and conventional well log data by integration of different artificial intelligent systems is proposed. The proposed method combines the results of adaptive neuro-fuzzy inference system (ANFIS) and neural network (NN) algorithms for overall estimation of core data from conventional well log data. These methods multiply the output of each algorithm with a weight factor. Simple averaging and weighted averaging were used for determining the weight factors. In the weighted averaging method the genetic algorithm (GA) is used to determine the weight factors. The overall algorithm was applied in one of SW Iran’s oil fields with two cored wells. One-third of all data were used as the test dataset and the rest of them were used for training the networks. Results show that the output of the GA averaging method provided the best mean square error and also the best correlation coefficient with real core data. (paper)

  17. A new method of damage determination in geothermal wells from geothermal inflow with application to Los Humeros, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Aragon, A [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico); Moya, S. L [Centro Nacional de Investigacion y Desarrollo Tecnologico, Cuernavaca, Morelos (Mexico); Garcia-Gutierrez, A; Arellano, V [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2008-10-15

    Geothermal inflow type curves were obtained for different values of well damage (i.e., inflow performance relationships). The method was evaluated by diagnosing the damage of thirteen producing wells in the Los Humeros, Puebla, Mexico geothermal field. Permeability determinations were carried out for these wells and their productivity indices were estimated. Comparison of the diagnoses made via damage effects against the results of field pressure tests showed that the maximum difference between both approaches is on the order of 0.7 damage units. The methodology allows reservoir characterization along its productive life, since several production tests are carried out while the reservoir is producing. The data obtained from production tests are used to determine the damage effect and permeability of the rock formation. Previously the damage (skin factor) could only be determined from the analyses of transient pressure tests. [Spanish] Se presenta la obtencion de curvas-tipo de influjo geotermico para diferentes valores de dano, y se demuestra su aplicacion en los analisis de produccion de pozos geotermicos determinando el dano en trece pozos del campo geotermico de Los Humeros, Puebla, Mexico. Tambien se hicieron determinaciones de la permeabilidad en las zonas de produccion de estos pozos y de sus respectivos indices de productividad. Se compararon los resultados del valor de dano obtenido con la metodologia propuesta, con los valores de dano obtenidos a partir de pruebas de presion, encontrando que las diferencias maximas entre ambas tecnicas es del orden de 0.7 unidades de dano. La presente metodologia permite la caracterizacion del yacimiento a lo largo de su vida productiva a partir de las mediciones de las pruebas de produccion efectuadas en los pozos. La metodologia propuesta es innovadora porque anteriormente el dano solamente se podia determinar a partir de los analisis de las mediciones de la pruebas de presion.

  18. Determination of Rn222 in samples of well water and domicile of the cities of Chihuahua and Aldama, Mexico

    International Nuclear Information System (INIS)

    Villalba, L.; Colmenero S, L.; Montero C, M.E.

    2004-01-01

    The study of the content of dissolved Rn 222 is presented in underground water and of domicile of the cities of Chihuahua and Aldama of the State of Chihuahua. The existence of the Rn 222 in the underground waters comes from its constant production in the rocks of the terrestrial bark. It has been determined that the radon is a noble gas of more solubility in the water, this solubility induces high concentrations in underground water, as well as bigger risk to the health in the human body once ingested or inhaled. Of the 32 wells studied in the cities of Chihuahua and Aldama, the content of dissolved Rn 222 in the water of 22 of them is bigger than 11 Bq/l and of 73 studied samples of water of domiciles 47 show bigger values that 11 Bq/l. These radon contents are attributable to the uraniferous rocks present in the aquifers. (Author)

  19. Determination of elemental and physico-chemical quality of well waters and assessment of their impacts on public health

    International Nuclear Information System (INIS)

    Randriamanivo, L.V.; Rasolofonirina, M.; Rakotondramanana, H.T.; Rasoazanany, E.O.; Razafy Andrianarivo, R.

    2001-01-01

    Water is one the most important constituents of the human environment. The relevance of determining pollutants in drinking water is obvious because it is among the pathways of contaminants to enter the organism. The aim of this work is to determine water quality and thus to assess the effects on humans. Total Reflection X-Ray Fluorescence analysis method (TXRF) has been applied for the measurements of trace elements in drinking water. The analyses were performed without any pre-concentration of samples. Colorimetric method was used for the analysis of major components of water. The samples were collected in the regions towards southern Antananarivo. Well waters were sampled because they are the type of drinking water consumed by the population in these regions. Analytical results showed that the determined concentrations of toxic elements such as chromium and lead are largely lower than the maximum allowed values, except two sites were lead concentration exceeds it. For Fe, five sites showed water samples having iron concentrations higher than Recommended Value (50 μg.L -1 ) fixed by the European Union. The mean values for barium and manganese were above the maximum allowed value established by law in some sites. This is mainly due to the geology of the terrain. Concerning nitrate, three sites showed higher concentration than the maximum allowed value.

  20. Individual and social determinants of self-rated health and well-being in the elderly population of Portugal

    Directory of Open Access Journals (Sweden)

    Pedro Alcântara da Silva

    2014-11-01

    Full Text Available This article aims to identify the main determinants of self-rated health and well-being in the elderly Portuguese population, using a set of dimensions including demographic and socioeconomic indicators, characteristics of interpersonal networks and social activities, health, sexual activity, representations of aging, and feeling of happiness. Taking socioeconomic, behavioral, and attitudinal predictors into account to analyze the explanatory value of the interrelated dimensions and weights for each factor, the author argues that social capital, activities associated with active aging, and greater optimism towards aging can contribute greatly to better self-rated health and wellbeing among the elderly, partially offsetting the effect of socioeconomic factors and illness associated with age.

  1. Determining Barriers and Facilitators Associated With Willingness to Use a Personal Health Information Management System to Support Worksite Wellness Programs.

    Science.gov (United States)

    Neyens, David M; Childers, Ashley Kay

    2017-07-01

    To determine the barriers and facilitators associated with willingness to use personal health information management (PHIM) systems to support an existing worksite wellness program (WWP). The study design involved a Web-based survey. The study setting was a regional hospital. Hospital employees comprised the study subjects. Willingness, barriers, and facilitators associated with PHIM were measured. Bivariate logit models were used to model two binary dependent variables. One model predicted the likelihood of believing PHIM systems would positively affect overall health and willingness to use. Another predicted the likelihood of worrying about online security and not believing PHIM systems would benefit health goals. Based on 333 responses, believing PHIM systems would positively affect health was highly associated with willingness to use PHIM systems (p < .01). Those comfortable online were 7.22 times more willing to use PHIM systems. Participants in exercise-based components of WWPs were 3.03 times more likely to be willing to use PHIM systems. Those who worried about online security were 5.03 times more likely to believe PHIM systems would not help obtain health goals. Comfort with personal health information online and exercise-based WWP experience was associated with willingness to use PHIM systems. However, nutrition-based WWPs did not have similar effects. Implementation barriers relate to technology anxiety and trust in security, as well as experience with specific WWP activities. Identifying differences between WWP components and addressing technology concerns before implementation of PHIM systems into WWPs may facilitate improved adoption and usage.

  2. Classification of individual well-being scores for the determination of adverse health and productivity outcomes in employee populations.

    Science.gov (United States)

    Shi, Yuyan; Sears, Lindsay E; Coberley, Carter R; Pope, James E

    2013-04-01

    Adverse health and productivity outcomes have imposed a considerable economic burden on employers. To facilitate optimal worksite intervention designs tailored to differing employee risk levels, the authors established cutoff points for an Individual Well-Being Score (IWBS) based on a global measure of well-being. Cross-sectional associations between IWBS and adverse health and productivity outcomes, including high health care cost, emergency room visits, short-term disability days, absenteeism, presenteeism, low job performance ratings, and low intentions to stay with the employer, were studied in a sample of 11,702 employees from a large employer. Receiver operating characteristics curves were evaluated to detect a single optimal cutoff value of IWBS for predicting 2 or more adverse outcomes. More granular segmentation was achieved by computing relative risks of each adverse outcome from logistic regressions accounting for sociodemographic characteristics. Results showed strong and significant nonlinear associations between IWBS and health and productivity outcomes. An IWBS of 75 was found to be the optimal single cutoff point to discriminate 2 or more adverse outcomes. Logistic regression models found abrupt reductions of relative risk also clustered at IWBS cutoffs of 53, 66, and 88, in addition to 75, which segmented employees into high, high-medium, medium, low-medium, and low risk groups. To determine validity and generalizability, cutoff values were applied in a smaller employee population (N=1853) and confirmed significant differences between risk groups across health and productivity outcomes. The reported segmentation of IWBS into discrete cohorts based on risk of adverse health and productivity outcomes should facilitate well-being comparisons and worksite interventions.

  3. Micro-extraction procedures for the determination of Ra-226 in well waters by SF-ICP-MS

    International Nuclear Information System (INIS)

    Lariviere, D.; Epov, V.N.; Reiber, K.M.; Cornett, R.J.; Evans, R.D.

    2005-01-01

    The radium-226 (t 1/2 = 1622 years) content of highly alkaline well water collected from the United Arab Emirates (UAE) was measured by double focusing sector-field inductively coupled plasma-mass spectrometry (SF-ICP-MS) after separation of the radium from other alkaline earth elements using a newly developed procedure. The results were comparable with those obtained by α-spectrometry for samples with concentrations ranging from 6.75 to 459 pg/L (0.25 to 17 Bq/L). Instrumental sensitivity on matrix-free samples was compared for two sample introduction systems, i.e. an Apex-Q high sensitivity system and a concentric nebulizer. A 12-fold improvement in sensitivity (instrumental detection limit = 1.5 pg/L or 55 mBq/L) was found when the Apex-Q system was used. Two chromatographic methods were tested for the sequential separation of the alkaline earth elements contained in the well water samples in order to reduce matrix and polyatomic interference effects. Optimal elution parameters were determined and used for the separation and pre-concentration of Ra-226 in those samples. A method detection limit of 0.189 pg/L (7 mBq/L), which corresponds to a mass of 0.38 fg of Ra-226 in the sample, was achieved. Only 2 mL of sample is necessary when a combination of 50 W-X8 and Sr*Spec resin, which are reusable, are utilized for the separation. This new analytical protocol significantly reduces sample preparation time resulting in a throughput rate of approximately 20 samples in only 8 h; faster than the other published extraction procedures

  4. Determination of the sanitary protective zones around Stip underground water wells from the Bregalnica river alluvion by its comparison to the Zagreb underground water wells from the Sava river alluvion

    OpenAIRE

    Mircovski, Vojo

    2006-01-01

    Based on existing geological - hydrogeological data hydrogeological characteristics and hydrogeological parameters of the alluvial sediments of Stip sources of ground water from the river Bregalnica were determined. According to the granulometric analysis and data obtained pumping test of wells were determined and filtration features of water bearing alluvial sediments built of sand and gravel and their overlay sediments consisting of sands and dusty clay sands. In determination of the ...

  5. Determination of suvorexant in human plasma using 96-well liquid-liquid extraction and HPLC with tandem mass spectrometric detection.

    Science.gov (United States)

    Breidinger, S A; Simpson, R C; Mangin, E; Woolf, E J

    2015-10-01

    A method, using liquid chromatography with tandem mass spectrometric detection (LC-MS/MS), was developed for the determination of suvorexant (MK-4305, Belsomra(®)), a selective dual orexin receptor antagonist for the treatment insomnia, in human plasma over the concentration range of 1-1000ng/mL. Stable isotope labeled (13)C(2)H3-suvorexant was used as an internal standard. The sample preparation procedure utilized liquid-liquid extraction, in the 96-well format, of a 100μL plasma sample with methyl t-butyl ether. The compounds were chromatographed under isocratic conditions on a Waters dC18 (50×2.1mm, 3μm) column with a mobile phase consisting of 30/70 (v/v %) 10mM ammonium formate, pH3/acetonitrile at a flow rate of 0.3mL/min. Multiple reaction monitoring of the precursor-to-product ion pairs for suvorexant (m/z 451→186) and (13)C(2)H3-suvorexant (m/z 455→190) on an Applied Biosystems API 4000 tandem mass spectrometer was used for quantitation. Intraday assay precision, assessed in six different lots of control plasma, was within 10% CV at all concentrations, while assay accuracy ranged from 95.6 to 105.0% of nominal. Quality control (QC) samples in plasma were stored at -20°C. Initial within day analysis of QCs after one freeze-thaw cycle showed accuracy within 9.5% of nominal with precision (CV) of 6.7% or less. The plasma QC samples were demonstrated to be stable for up to 25 months at -20°C. The method described has been used to support clinical studies during Phase I through III of clinical development. Copyright © 2015 Elsevier B.V. All rights reserved.

  6. Satisfaction of Needs and Determining of Life Goals: A Model of Subjective Well-Being for Adolescents in High School

    Science.gov (United States)

    Eryilmaz, Ali

    2011-01-01

    The aim of this study is to develop and test a subjective well-being model for adolescents in high school. A total of 326 adolescents in high school (176 female and 150 male) participated in this study. The data was collected by using the general needs satisfaction questionnaire, which is for the adolescents' subjective well-being, and determining…

  7. Determination of mechanical damage from wells under oil and gas flow condition; Determinacao de dano mecanico em pocos sob condicao de escoamento de oleo e gas

    Energy Technology Data Exchange (ETDEWEB)

    Marques, J. B.D. [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil); Trevisan, O. V. [Universidade Estadual de Campinas (UNICAMP), SP (Brazil)

    2008-07-01

    The well bore effect is one of the most difficult variables obtained from well test analysis under two-phase condition. The presence of the gas in a well inserted in reservoir, which operates under gas drive solution, hinders the development of the analytical model to determine the mechanical damage. It is one of the reasons of the using the single phase well test analysis methodologies become suitable to the multiphase cases. The determination of the well bore effect is justified; therefore it is possible to work over in the well in order to determinate the real potential productive. The main objective of this work is to reevaluate a method of determination of the mechanical damage gotten from a well test under two-phase condition. In this work a simplified model of reservoir simulation is constructed in a commercial simulator in order to validate the methodology. The refinement of the blocks near to the well adopted in the simulation is a good representation of the well mechanical damage which occurs in a homogeneous reservoir. The types of well test analysis used in this work are two: drawdown and buildup test. The results gotten for this methodology, as will be shown, are excellent quality and the model of simulation presented here can be used for other analytical methods studies in order to determinate the mechanical damage or other variable of the reservoir. (author)

  8. Pathways to Well-Being in Later Life: Socioeconomic and Health Determinants Across the Life Course of Australian Baby Boomers.

    Science.gov (United States)

    Kendig, Hal; Loh, Vanessa; O'Loughlin, Kate; Byles, Julie; Nazroo, James Y

    2016-01-01

    In many countries like Australia and the United States, baby boomers are referred to as the 'lucky cohort', yet there has been little research on the origins and extent of inequalities within this cohort. This study uses path analysis to investigate direct and indirect effects of childhood and adult socioeconomic status and health on two subjective well-being measures: quality of life and life satisfaction. Retrospective life course data were obtained for 1,261 people aged 60 to 64 in the 2011-12 Life Histories and Health survey, a sub-study of the Australian 45 and Up Study. Supporting an accumulation model, the number of negative childhood and adult exposures were inversely related to both types of well-being. Consistent with a critical period model, childhood exposures had small but significant effects on subjective well-being and were relatively more important for quality of life than for life satisfaction. However, these childhood effects were largely indirect and significantly mediated by more proximal adult exposures, providing support for a pathway model. A key implication of this research is that the critical period for later life well-being is significant in adulthood rather than childhood, suggesting that there may be key opportunities for improving individuals' later life well-being far beyond the early, formative years. This research highlights the importance of understanding how earlier life exposures impact experiences in later life, and investing in health and socioeconomic opportunities to reduce inequalities across all stages of life.

  9. Determining the hydraulic and fracture properties of the Coal Seam Gas well by numerical modelling and GLUE analysis

    Science.gov (United States)

    Askarimarnani, Sara; Willgoose, Garry; Fityus, Stephen

    2017-04-01

    Coal seam gas (CSG) is a form of natural gas that occurs in some coal seams. Coal seams have natural fractures with dual-porosity systems and low permeability. In the CSG industry, hydraulic fracturing is applied to increase the permeability and extract the gas more efficiently from the coal seam. The industry claims that it can design fracking patterns. Whether this is true or not, the public (and regulators) requires assurance that once a well has been fracked that the fracking has occurred according to plan and that the fracked well is safe. Thus defensible post-fracking testing methodologies for gas generating wells are required. In 2009 a fracked well HB02, owned by AGL, near Broke, NSW, Australia was subjected to "traditional" water pump-testing as part of this assurance process. Interpretation with well Type Curves and simple single phase (i.e. only water, no gas) highlighted deficiencies in traditional water well approaches with a systemic deviation from the qualitative characteristic of well drawdown curves (e.g. concavity versus convexity of drawdown with time). Accordingly a multiphase (i.e. water and methane) model of the well was developed and compared with the observed data. This paper will discuss the results of this multiphase testing using the TOUGH2 model and its EOS7C constitutive model. A key objective was to test a methodology, based on GLUE monte-carlo calibration technique, to calibrate the characteristics of the frack using the well test drawdown curve. GLUE involves a sensitivity analysis of how changes in the fracture properties change the well hydraulics through and analysis of the drawdown curve and changes in the cone of depression. This was undertaken by changing the native coal, fracture, and gas parameters to see how changing those parameters changed the match between simulations and the observed well drawdown. Results from the GLUE analysis show how much information is contained in the well drawdown curve for estimating field scale

  10. Classification of radioactive waste and determination of waste specifications as well as conditions of acceptance for ultimate storage

    International Nuclear Information System (INIS)

    Merz, E.

    1983-04-01

    The determination of waste specification and conditions of acceptance must follow a certain scheme, the basics of which will be presented. First the types of waste and the ultimate storage facilities will be characterized. The various categories of waste will be listed in a universally valid system, and the preliminary conditioning options will be determined. Based on the results of safety analysis taking into account the whole system - geological circumstances, ultimate store mines, types and forms of waste - specifications for the various ultimate store products are to be derived following iterative methods. Suggestions though not of a binding nature and probably subject to eventual revisions in part will be presented. To ensure the safety goals, i.e. the exclusion of radioactivity from the human biosphere, appropriate quality control is required concerning the production and the acceptance at the ultimate store. The guiding principles to be heeded will be discussed in brief. (orig./HP) [de

  11. Resazurin-based 96-well plate microdilution method for the determination of minimum inhibitory concentration of biosurfactants.

    Science.gov (United States)

    Elshikh, Mohamed; Ahmed, Syed; Funston, Scott; Dunlop, Paul; McGaw, Mark; Marchant, Roger; Banat, Ibrahim M

    2016-06-01

    To develop and validate a microdilution method for measuring the minimum inhibitory concentration (MIC) of biosurfactants. A standardized microdilution method including resazurin dye has been developed for measuring the MIC of biosurfactants and its validity was established through the replication of tetracycline and gentamicin MIC determination with standard bacterial strains. This new method allows the generation of accurate MIC measurements, whilst overcoming critical issues related to colour and solubility which may interfere with growth measurements for many types of biosurfactant extracts.

  12. Organizational Well-Being Factors. Determinants of entrepreneurship in small and medium companies of the defense sector

    Directory of Open Access Journals (Sweden)

    Helena de Almeida

    2013-09-01

    Full Text Available All over the world, the small and medium enterprises are more and more organized in consortia, cooperation networks, joint-ventures and strategical alliances allowing not only the reduction of uncertainty and turbulence of the markets but also the gathering of advantages which may make them more competitive. It is worth considering that the results of these relationships are affected by determinant factors which may inhibit or facilitate the entrepreneurship. Our aim is to evaluate the relationship between some of those determinants, association, inter-company cooperation, innovation in the methods of work and creativity—about the entrepreneurship in 236 small and medium enterprises of the national defence. One of the questions initially posed is if there is a significant relation between corporation, innovative methods of work, creativity and entrepreneurship. Secondly, if being creative is an attribute of the entrepreneur, can it have a mediator effect between innovative methods of work and entrepreneurship? A factorial exploratory analysis was made in main components (varimax rotation and multiple linear regression. The results show the direct relationship of the evaluated determinants and entrepreneurship and the partial mediator effect of the creativity between the innovation in the methods of work and entrepreneurship. These enterprises may expect to develop new methods of work as a high differential component concerning the competition and the more efficient use of knowledge and of the skills of the people who make part of the work team in order to increase their competitiveness.

  13. Determining the explosion risk level and the explosion hazard area for a group of natural gas wells

    Science.gov (United States)

    Gligor, A.; Petrescu, V.; Deac, C.; Bibu, M.

    2016-11-01

    Starting from the fact that the natural gas engineering profession is generally associated with a high occupational risk, the current paper aims to help increase the safety of natural gas wells and reduce the risk of work-related accidents, as well as the occurrence of professional illnesses, by applying an assessment method that has proven its efficiency in other industrial areas in combination with a computer-aided design software. More specifically, the paper focuses on two main research directions: assessing the explosion risk for employees working at natural gas wells and indicating areas with a higher explosion hazard by using a modern software that allows their presentation in 3D. The appropriate zoning of industrial areas allows to group the various functional areas function of the probability of the occurrence of a dangerous element, such as an explosive atmosphere and subsequently it allows also to correctly select the electrical and mechanical equipment that will be used in that area, since electrical apparatuses that are otherwise found in normal work environments cannot generally be used in areas with explosion hazard, because of the risk that an electric spark, an electrostatic discharge etc. ignites the explosive atmosphere.

  14. Sexual dimorphism in mammalian autosomal gene regulation is determined not only by Sry but by sex chromosome complement as well.

    Science.gov (United States)

    Wijchers, Patrick J; Yandim, Cihangir; Panousopoulou, Eleni; Ahmad, Mushfika; Harker, Nicky; Saveliev, Alexander; Burgoyne, Paul S; Festenstein, Richard

    2010-09-14

    Differences between males and females are normally attributed to developmental and hormonal differences between the sexes. Here, we demonstrate differences between males and females in gene silencing using a heterochromatin-sensitive reporter gene. Using "sex-reversal" mouse models with varying sex chromosome complements, we found that this differential gene silencing was determined by X chromosome complement, rather than sex. Genome-wide transcription profiling showed that the expression of hundreds of autosomal genes was also sensitive to sex chromosome complement. These genome-wide analyses also uncovered a role for Sry in modulating autosomal gene expression in a sex chromosome complement-specific manner. The identification of this additional layer in the establishment of sexual dimorphisms has implications for understanding sexual dimorphisms in physiology and disease. Copyright © 2010 Elsevier Inc. All rights reserved.

  15. Findings of a retrospective survey conducted after the Lodgepole sour gas well blowout to determine if the natural occurrence of bovine abortions and fetal anomalies increased

    International Nuclear Information System (INIS)

    Klavano, G.G.; Christian, R.G.

    1992-01-01

    A survey was conducted after the Lodgepole sour gas well blowout of October 1982 to determine if the incident changed the number and type of bovine abortions and abnormal bovine feti submitted to the diagnostic laboratory from the blowout area. The records of the total number of bovine feti submitted were compared between three areas to determine if there was a significant difference between the areas closer to the well site and the larger total area. No changes or trends could be ascribed to the well blowout. 2 refs., 5 tabs

  16. Determination of 222Rn in water samples from wells and springs in Tokyo by a modified integral counting method

    International Nuclear Information System (INIS)

    Homma, Y.; Murase, Y.; Handa, K.; Murakami, I.

    1997-01-01

    222 Rn in 2L-water samples was extracted with 30 mL toluene, and 21 mL of the toluene solution was transferred into a liquid scintillation vial, in which PPO - 2,5-diphenyloxazole was placed in advance. The total activity of 222 Rn in the water sample was calculated based on the Ostwald's coefficient of solubilities of 222 Rn in toluene and water at the temperature of the sample water and the volume of water and toluene. About 40% of 222 Rn dissolved in 2L-water sample can be collected. After allowing to stand for 3.5 h, the equilibrium mixture of 222 Rn and its daughters was measured with an Aloka liquid scintillation spectrometer using a modified integral counting method which extrapolates the integral counting curve not to the zero pulse-height, but to the zero detection threshold, an average energy required to produce a measurable pulse, of the liquid scintillation spectrometer. The general method which agitates water sample (usually about 10 mL) with a liquid scintillation cocktail is practical when the activity of 222 Rn is high. By adding 10 mL of water sample, however, it is possible also to add variable amounts of quencher. In some cases water sample is preserved with nitric acid. The slope of the integral counting rate curve increases as quench level of the sample increases. Therefore, it is clear that the modified integral counting method gives more accurate 222 Rn concentrations for water samples of strong quench than the conventional integral counting method. 222 Rn sample of 0.2 Bq/L can be determined within an overall uncertainty of 3.1%

  17. STakeholder-Objective Risk Model (STORM): Determining the aggregated risk of multiple contaminant hazards in groundwater well catchments

    Science.gov (United States)

    Enzenhoefer, R.; Binning, P. J.; Nowak, W.

    2015-09-01

    Risk is often defined as the product of probability, vulnerability and value. Drinking water supply from groundwater abstraction is often at risk due to multiple hazardous land use activities in the well catchment. Each hazard might or might not introduce contaminants into the subsurface at any point in time, which then affects the pumped quality upon transport through the aquifer. In such situations, estimating the overall risk is not trivial, and three key questions emerge: (1) How to aggregate the impacts from different contaminants and spill locations to an overall, cumulative impact on the value at risk? (2) How to properly account for the stochastic nature of spill events when converting the aggregated impact to a risk estimate? (3) How will the overall risk and subsequent decision making depend on stakeholder objectives, where stakeholder objectives refer to the values at risk, risk attitudes and risk metrics that can vary between stakeholders. In this study, we provide a STakeholder-Objective Risk Model (STORM) for assessing the total aggregated risk. Or concept is a quantitative, probabilistic and modular framework for simulation-based risk estimation. It rests on the source-pathway-receptor concept, mass-discharge-based aggregation of stochastically occuring spill events, accounts for uncertainties in the involved flow and transport models through Monte Carlo simulation, and can address different stakeholder objectives. We illustrate the application of STORM in a numerical test case inspired by a German drinking water catchment. As one may expect, the results depend strongly on the chosen stakeholder objectives, but they are equally sensitive to different approaches for risk aggregation across different hazards, contaminant types, and over time.

  18. How Well do we Know Near-Surface Density When Determining Mass Balance by the Geodetic Method?

    Science.gov (United States)

    Kuhn, M. H.; Matzi, E.

    2005-12-01

    From a data set of firn pits in the accumulation area of Hintereisferner in the years 1964 - 2002 the behavior of density and water equivalent was analyzed with a view to estimating the potential errors in the application of the geodetic method. Since annual specific balance ranged from 100 to 3300 mm w.e. the profiles were scaled to total depth. For the uppermost 10% of the annual deposit at a typical location the 1964-2002 mean density would be 350 kg/m-3 with a standard deviation of 110 kg/m-3; for the 10% layer at the base of the annual snowpack the respective figures are 510 +- 30 kg/m-3. The normalized long term means of an ensemble of 9 pits ranged from 310 to 380 kg/m-3 in the top layer and from 510 to 540 kg/m-3 in the bottom layer. When one outlier is removed the the range in the bottom layer reduces to 525 to 540 kg/m-3. This small local variance encourages the use of the geodetic method. The comparison of elevation models of 1969 and 1997 yields a mass change that agrees very well with the results of the glaciological method provided the volume change is converted to mass with a density of 900 kg/m-3. While this may be true for the entire glacier on long terms, it will fail for individual years in the accumulation area. Possible errors are calculated from the data set emphasizing the role of year to year changes of specific balance and accumulation area ratio.

  19. Determinants and consequences of insulin initiation for type 2 diabetes in France: analysis of the National Health and Wellness Survey

    Directory of Open Access Journals (Sweden)

    Reach G

    2013-10-01

    Full Text Available Gérard Reach,1 Véronique Le Pautremat,2 Shaloo Gupta31Department of Endocrinology, Diabetes, and Metabolic Diseases, Avicenne Hospital APHP, and EA 3412, CRNH-IdF, Paris 13 University, Sorbonnne Paris Cité, Bobigny, France; 2Kantar Health, Paris, France; 3Kantar Health, Princeton, NJ, USABackground: The aim of the study was to identify the intrinsic patient characteristics and extrinsic environmental factors predicting prescription and use and, more specifically, early initiation (up to 5 years of disease duration of insulin for type 2 diabetes in France. A secondary objective was to evaluate the impact of insulin therapy on mental and physical quality of life and patient adherence.Methods: The data used in this study were derived from the 2008, 2010, and 2011 France National Health and Wellness Survey. This survey is an annual, cross-sectional, self-administered, Internet-based questionnaire among a nationwide representative sample of adults (aged 18 years or older. Of the total of 45,958 persons recruited in France, 1,933 respondents (deduped were identified as diagnosed with type 2 diabetes. All unique respondents from the three waves, currently using insulin or oral bitherapy or tritherapy at the time of assessment, were included in this analysis.Results: Early (versus late initiation of insulin therapy was 9.9 times more likely to be prescribed by an endocrinologist or diabetologist than by a primary care physician (P < 0.0001. Younger age at diagnosis and current smoking habits were significant predictors of early (versus late insulin initiation (odds ratio [OR] 1.031, 95% confidence interval [CI] 1.005–1.059, P = 0.0196, and OR 2.537, 95% CI 1.165–5.524, P = 0.0191, respectively. Patients with a yearly income ≥€50,000 were less likely to be put on insulin early (P = 0.0399. A link between insulin prescription and complications was shown only in univariate analysis. Mental quality of life was lower in patients on early (versus

  20. Accuracy of determining the elements for occurrence of beds and curvature of well according to measurement data by the apparatus of a bed tiltmeter NID-1

    Energy Technology Data Exchange (ETDEWEB)

    Krivonosov, R.I.; Karabel' nikova, G.N.; Khatuntsev, V.G.; Salov, Ye.A.

    1979-01-01

    Questions are examined of the accuracy of determining elements for occurrence of beds and curvature of wells using data of measurement by apparatus of a bed tiltmeter NID-1. Calculated formulas and graphs are presented for different conditions of occurrence of a bed, angle of inclination of the well and its diameter. The presented data make it possible to have a differentiated approach to evaluating the results of incline measurement.

  1. Subjective well-being amongst community-dwelling elders: what determines satisfaction with life? Findings from the Dublin Healthy Aging Study.

    Science.gov (United States)

    Ní Mhaoláin, Aine M; Gallagher, Damien; O Connell, Henry; Chin, A V; Bruce, Irene; Hamilton, Fiona; Teehee, Erin; Coen, Robert; Coakley, Davis; Cunningham, Conal; Walsh, J B; Lawlor, Brian A

    2012-02-01

    Life satisfaction is a subjective expression of well-being and successful aging. Subjective well-being is a major determinant of health outcomes in older people. The aim of this study was to determine which factors predicted well-being in older people living in the community as measured by their satisfaction with life. The relationship between life satisfaction, as measured by the Life Satisfaction Index (LSI-A) and physical, cognitive and demographic variables was examined in 466 older people living in the community using a stepwise regression model. Depression, loneliness, neuroticism, extraversion, recent participation in physical activity, age and self-reported exhaustion, were the independent predictors of life satisfaction in our elderly cohort. Subjective well-being, as measured by the Life Satisfaction Scale, is predicted by depression, loneliness, personality traits, recent participation in physical activity and self-reported exhaustion. The mental and emotional status of older individuals, as well as their engagement in physical activity, are as important as physical functionality when it comes to life satisfaction as a measure of well-being and successful aging. These areas represent key targets for intervention.

  2. Satisfaction of Basic Psychological Needs, Self-Determined Exercise Motivation, and Psychological Well-Being in Mothers Exercising in Group-Based Versus Individual-Based Contexts.

    Science.gov (United States)

    Lovell, Geoff P; Gordon, James A R; Mueller, Marcus B; Mulgrew, Kate; Sharman, Rachael

    2016-01-01

    We compared mothers who exercised predominantly in group settings, those who exercised predominantly in individual settings, and those who exercised equally in group and individual contexts among the following: (a) satisfaction of basic psychological needs (autonomy, competence, and relatedness); (b) self-determined exercise motivation; and (c) psychological well-being. With clear implications for mothers' exercise interventions we found that exercising either predominantly in group contexts or in mixed group and individual settings was associated with mothers having significantly higher satisfaction of basic psychological needs and self-determined exercise motivation than those exercising predominantly alone.

  3. Understanding determinants of nutrition, physical activity and quality of life among older adults: the Wellbeing, Eating and Exercise for a Long Life (WELL study

    Directory of Open Access Journals (Sweden)

    McNaughton Sarah A

    2012-09-01

    Full Text Available Abstract Background Nutrition and physical activity are major determinants of health and quality of life; however, there exists little research focusing on determinants of these behaviours in older adults. This is important, since just as these behaviours vary according to subpopulation, it is likely that the determinants also vary. An understanding of the modifiable determinants of nutrition and physical activity behaviours among older adults to take into account the specific life-stage context is required in order to develop effective interventions to promote health and well-being and prevent chronic disease and improve quality of life. Methods The aim of this work is to identify how intrapersonal, social and environmental factors influence nutrition and physical activity behaviours among older adults living in urban and rural areas. This study is a cohort study of adults aged 55-65 years across urban and rural Victoria, Australia. Participants completed questionnaires at baseline in 2010 and will complete follow-up questionnaires in 2012 and 2014. Self-report questionnaires will be used to assess outcomes such as food intake, physical activity and sedentary behaviours, anthropometry and quality of life. Explanatory variables include socioeconomic position, and measures of the three levels of influence on older adults’ nutrition and physical activity behaviours (intrapersonal, social and perceived environmental influences. Discussion Obesity and its determinant behaviours, physical inactivity and poor diet are major public health concerns and are significant determinants of the quality of life among the ageing population. There is a critical need for a better understanding of the determinants of nutrition and physical activity in this important target group. This research will provide evidence for the development of effective policies and programs to promote and support increased physical activity and healthy eating behaviours among older

  4. Determination of the geothermal well damage from its production tests; Determinacion del dano en pozos geotermicos a partir de sus pruebas de produccion

    Energy Technology Data Exchange (ETDEWEB)

    Aragon Aguilar, Alfonso; Izquierdo Montalvo, Georgina; Arellano Gomez, Victor [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2011-06-13

    In this work the evolution is described that undergoes the factor of damage in a well during its productive stage, which is identifiable from the diminution in the characteristics of its production. It is mentioned that during the productive stage of wells, its declination is, in many occasions, synonymous of the damage presence. Traditionally, the damage effect is determined from the equations for analysis of the transitory tests of pressure. Nevertheless, the execution of this type of tests requires relatively long periods of time to obtain the stabilization of the well and of significant costs. By the previous facts the development of techniques to determine the damage from production tests was initiated. In this article is presented the curve-type of geothermal inflow affected by the damage, from which the value of this one in a geothermal well for the time in which its test of production is realized can be determined. A methodology is proposed to determine the damage effect in the well using the proposed curve-type and its applicability with examples of test measurements of well discharge is demonstrated in Mexican geothermal fields. From the conducted analyses it is found that the numerical value of the damage determined in selected wells increases based on the time of exploitation, which indicates a deterioration of its productive characteristics. The previous statements aid to constitute a technical endorsement for the decision making, on the pertinent actions that can be executed in the well. [Spanish] En este trabajo se describe la evolucion que sufre el factor de dano en un pozo durante su etapa productiva, el cual es identificable a partir de la disminucion en las caracteristicas de su produccion. Se menciona que durante la etapa productiva de los pozos, su declinacion es, en muchas ocasiones, sinonimo de la presencia de dano. Tradicionalmente, el efecto de dano se determina a partir de las ecuaciones para analisis de las pruebas transitorias de presion

  5. Determination of the indium content and layer thicknesses in InGaN/GaN quantum wells by x-ray scattering

    International Nuclear Information System (INIS)

    Vickers, M.E.; Kappers, M.J.; Smeeton, T.M.; Thrush, E.J.; Barnard, J.S.; Humphreys, C.J.

    2003-01-01

    We have determined the indium content and the layer thicknesses in an InGaN epilayer and InGaN/GaN quantum well structures by high-resolution x-ray diffraction (XRD) using the (002) reflection. The thickness of the total repeat (an InGaN well plus a GaN barrier) in the superlattice is easily determined from the spacing between the satellite peaks in an omega/2theta scan. Measurement of the individual thickness of InGaN and GaN layers and the indium content is less straightforward, since for multilayer structures the peak positions are influenced by both the indium content and the thickness ratio of the GaN to the InGaN layer. Thus, several different models may give reasonable fits to data collected over a limited range (about 1 deg. omega/2theta either side of the (002)) showing only lower-order (-3 to +3) satellite peaks. Whenever possible, we have collected data over a wide range (about 4 deg. omega/2theta) and determined the thickness ratio by examination of the relative intensities of weak higher-order satellite peaks (-7 to +5). An alternative but less sensitive method is to use relative intensities from x-ray reflectivity measurements to give the thickness ratio. Once the thickness of both the InGaN and GaN layers has been established, the InGaN composition can be determined from the peak positions. If the quality of the samples is poor, because of inhomogeneities or wide diffuse interfaces, there are insufficient data to characterize the structures. There is good agreement between the composition of the epilayer as determined by XRD and secondary ion mass spectroscopy and good agreement between x-ray and electron microscopy results for the quantum well structures. We find no variation from Vegard's rule for In contents less than 0.20. This article shows that structural parameters of high-quality InGaN/GaN superlattices with 10 and 5 repeats can be determined reliably by x-ray techniques: The InGaN and GaN thicknesses to ±1 Aa and the In content to ±0.01

  6. Straddle-packer determination of the vertical distribution of hydraulic properties in the Snake River Plain Aquifer at well USGS-44, Idaho Chemical Processing Plant, INEL

    International Nuclear Information System (INIS)

    Monks, J.I.

    1994-01-01

    Many of the monitor wells that penetrate the upper portion of the Snake River Plain aquifer at the Idaho National Engineering Laboratory (INEL) are open over large intervals that include multiple water-bearing zones. Most of these wells are equipped with dedicated submersible pumps. Water of varying quality from different water-bearing zones is mixed within the wells. The hydrologic properties of individual water bearing zones are difficult to determine. Water quality and water-level data on organic, heavy metal, and radioactive contaminants have been collected, reported, and interpreted from these monitor wells for more than forty years. The problems associated with well completions over large intervals through multiple water-bearing zones raise significant questions about the data. A straddle-packer system was developed and applied at the INEL site to investigate the monitor well network. The straddle-packer system, hydraulic testing methods, data analysis procedures, and testing results are described in this report. The straddle-packer system and the straddle-packer testing and data evaluation procedures can be improved for future testing at the INEL site. Recommended improvements to the straddle-packer system are: (1) improved transducer pressure sensing systems, (2) faster opening riser valve, and (3) an in-line flowmeter in the riser pipe. Testing and data evaluation recommended improvements are: (1) simultaneous valve opening during slug tests, (2) analysis of the ratio of the times for head change and recovery to occur, (3) constant-drawdown tests of high transmissivity intervals, (4) multiple-well aquifer tests, and (5) long term head monitoring

  7. Differentiating autonomy from individualism and independence: a self-determination theory perspective on internalization of cultural orientations and well-being.

    Science.gov (United States)

    Chirkov, Valery; Ryan, Richard M; Kim, Youngmee; Kaplan, Ulas

    2003-01-01

    On the basis of self-determination theory (R. M. Ryan & E. L. Deci, 2000) and cultural descriptions drawn from H. C. Triandis (1995), the authors hypothesized that (a) individuals from different cultures internalize different cultural practices; (b) despite these differences, the relative autonomy of individuals' motivation for those practices predicts well-being in all 4 cultures examined; and (c) horizontal practices are more readily internalized than vertical practices across all samples. Five hundred fifty-nine persons from South Korea, Russia, Turkey and the United States participated. Results supported the hypothesized relations between autonomy and well-being across cultures and gender. Results also suggested greater internalization of horizontal relative to vertical practices. Discussion focuses on the distinction between autonomy and individualism and the relative fit of cultural forms with basic psychological needs.

  8. Determining

    Directory of Open Access Journals (Sweden)

    Bahram Andarzian

    2015-06-01

    Full Text Available Wheat production in the south of Khuzestan, Iran is constrained by heat stress for late sowing dates. For optimization of yield, sowing at the appropriate time to fit the cultivar maturity length and growing season is critical. Crop models could be used to determine optimum sowing window for a locality. The objectives of this study were to evaluate the Cropping System Model (CSM-CERES-Wheat for its ability to simulate growth, development, grain yield of wheat in the tropical regions of Iran, and to study the impact of different sowing dates on wheat performance. The genetic coefficients of cultivar Chamran were calibrated for the CSM-CERES-Wheat model and crop model performance was evaluated with experimental data. Wheat cultivar Chamran was sown on different dates, ranging from 5 November to 9 January during 5 years of field experiments that were conducted in the Khuzestan province, Iran, under full and deficit irrigation conditions. The model was run for 8 sowing dates starting on 25 October and repeated every 10 days until 5 January using long-term historical weather data from the Ahvaz, Behbehan, Dezful and Izeh locations. The seasonal analysis program of DSSAT was used to determine the optimum sowing window for different locations as well. Evaluation with the experimental data showed that performance of the model was reasonable as indicated by fairly accurate simulation of crop phenology, biomass accumulation and grain yield against measured data. The normalized RMSE were 3%, 2%, 11.8%, and 3.4% for anthesis date, maturity date, grain yield and biomass, respectively. Optimum sowing window was different among locations. It was opened and closed on 5 November and 5 December for Ahvaz; 5 November and 15 December for Behbehan and Dezful;and 1 November and 15 December for Izeh, respectively. CERES-Wheat model could be used as a tool to evaluate the effect of sowing date on wheat performance in Khuzestan conditions. Further model evaluations

  9. Determination of 234U and 238U activity concentrations in groundwaters from three deep wells drilled in Itu Intrusive Suite (SP)

    International Nuclear Information System (INIS)

    Souza, Francisca de

    2006-01-01

    Activity concentrations of ( 234 U) and ( 238 U) were determined in groundwaters drawn from three deep wells drilled in rocks from Itu Intrusive Suite (SP), two located in Salto town (S and SY wells) and the other one in Itu (I well). Sampling was done from September, 2004 to December, 2005, and twelve samples of each well were collected monthly. For those determinations alpha spectrometry technique was used, providing high precision results, as shown by the very good agreement of the data obtained in the analyses of 23 duplicates. The waters from the three wells presented a considerable enrichment of 234 U in relation to 238 U, indicating an important radioactive disequilibrium of these isotopes. In well I, the activity concentrations of ( 238 U) varied from (1,06 +- 0,03) to (2,1+- 0,2) mBq/L and those of ( 234 U) spanned from (3,1 +- 0,2) to (6,0 +- 0,4) mBq/L, whereas ( 234 U/ 238 U) activity ratios did not present significant variation, during the sampling time interval, presenting an average of 2,8 +- 0,1. The S waters showed the lowest uranium concentrations and the largest diversity of ( 238 U) and ( 234 U) activity concentrations, which varied from (0,26 +- 0,02) to (1,07+- 0,08) mBq/L and from (1,8 +- 0,1) to (7,0 +- 0,5) mBq/L, respectively, and also presented variable ( 234 U/ 238 U) activity ratios, spanning from (2,79 +- 0,07) to (8,1+- 0,3). In SY well, ( 238 U) activities varied between (0,8 +- 0,1) and (4,2 +- 0,3) mBq/L and those ones of ( 234 U) from (14 +- 1) to (53 +- 4) mBq/L, whereas ( 234 U/ 238 U) ratios fell in the interval from 12,6 +- 0,3 to 18,3 +- 0,4, with the highest activities of both radioisotopes registered during the dry season and the lowest ones in the rainy time period. The ( 234 U/ 238 U) activity ratios, which were invariable during sampling period of well I, indicated the contribution of rainfall to recharge the aquifer. The observed correlation between those ratios and uranium concentrations, for S and SY wells, showed

  10. Determination of the physico-chemical and bacteriological quality of water from hand dug wells in the Ga-West Municipality, Accra, Ghana

    International Nuclear Information System (INIS)

    Fatawu, B.

    2015-01-01

    The Ga-West Municipality is noted for high reported cases of Buruli Ulcer and other water-borne diseases. A large section of the population of the municipality depends on boreholes and hand-dug wells to meet their basic daily water requirement. The hand-dug wells and boreholes, unlike treated piped water and Water Kiosk Programmes in the communities of the study area are not frequently monitored for their bacteriological, physic-chemical parameters and trace elements content; to ascertain their suitability for drinking and other important domestic chores. The study assessed the quality (bacteriological, physico-chemical and trace elements) of water from hand-dug wells and boreholes in communities within the Ga West Municipality. Groundwater samples were collected in November and December 2014 from hand-dug wells and boreholes in twenty-three (19) communities within the Ga-West Municipality for the study. pH, Total Dissolved Solids, Electric Conductivity and Temperature were determined onsite with the portable Multifunctional HACH-Conductivity meter. HCO 3 - Alkalinity, Calcium and Total Hardness were determined by Titrimetry. Trace metals (Mn, Fe, Co, Ni, Cu, Pb, Cd, Zn) and Mg were determined by Atomic Absorption Spectrometry. For bacterial indicators, Aerobic Colony Count Technique was employed. Fecal Coliform and E-coli were determined using Violet Red Bile-salt Agar Media, and Indole Test used to confirm Ecoli. Plate Count Agar Media was used in the determination of Total Coliform. pH was acidic to weakly alkaline (4.5 - 8.5) for hand-dug wells and weakly acidic to near-neutral (6.4 - 7.5) in the boreholes. Total Dissolved Solids were generally high with about 35.7 % of the samples exceeding WHO recommended Guideline of 1000 mg/L in both hand-dug wells and boreholes. According to TDS classification by Freeze and Cherry, 74.3 % of the groundwater samples were classified as fresh, (TDS ‹100 mg/L) and 35.7 % as brackish (TDS › 100 mg/L). Total Hardness values

  11. On the role of structure-dynamic relationship in determining the excess entropy of mixing and chemical ordering in binary square-well liquid alloys

    Science.gov (United States)

    Lalneihpuii, R.; Shrivastava, Ruchi; Mishra, Raj Kumar

    2018-05-01

    Using statistical mechanical model with square-well (SW) interatomic potential within the frame work of mean spherical approximation, we determine the composition dependent microscopic correlation functions, interdiffusion coefficients, surface tension and chemical ordering in Ag-Cu melts. Further Dzugutov universal scaling law of normalized diffusion is verified with SW potential in binary mixtures. We find that the excess entropy scaling law is valid for SW binary melts. The partial and total structure factors in the attractive and repulsive regions of the interacting potential are evaluated and then Fourier transformed to get partial and total radial distribution functions. A good agreement between theoretical and experimental values for total structure factor and the reduced radial distribution function are observed, which consolidates our model calculations. The well-known Bhatia-Thornton correlation functions are also computed for Ag-Cu melts. The concentration-concentration correlations in the long wavelength limit in liquid Ag-Cu alloys have been analytically derived through the long wavelength limit of partial correlation functions and apply it to demonstrate the chemical ordering and interdiffusion coefficients in binary liquid alloys. We also investigate the concentration dependent viscosity coefficients and surface tension using the computed diffusion data in these alloys. Our computed results for structure, transport and surface properties of liquid Ag-Cu alloys obtained with square-well interatomic interaction are fully consistent with their corresponding experimental values.

  12. Within-person variation in security of attachment: a self-determination theory perspective on attachment, need fulfillment, and well-being.

    Science.gov (United States)

    La Guardia, J G; Ryan, R M; Couchman, C E; Deci, E L

    2000-09-01

    Attachment research has traditionally focused on individual differences in global patterns of attachment to important others. The current research instead focuses primarily on within-person variability in attachments across relational partners. It was predicted that within-person variability would be substantial, even among primary attachment figures of mother, father, romantic partner, and best friend. The prediction was supported in three studies. Furthermore, in line with self-determination theory, multilevel modeling and regression analyses showed that, at the relationship level, individuals' experience of fulfillment of the basic needs for autonomy, competence, and relatedness positively predicted overall attachment security, model of self, and model of other. Relations of both attachment and need satisfaction to well-being were also explored.

  13. Moving toward holistic wellness, empowerment and self-determination for Indigenous peoples in Canada: Can traditional Indigenous health care practices increase ownership over health and health care decisions?

    Science.gov (United States)

    Auger, Monique; Howell, Teresa; Gomes, Tonya

    2016-12-27

    This study aimed to understand the role that traditional Indigenous health care practices can play in increasing individual-level self-determination over health care and improving health outcomes for urban Indigenous peoples in Canada. This project took place in Vancouver, British Columbia and included the creation and delivery of holistic workshops to engage community members (n = 35) in learning about aspects of traditional health care practices. Short-term and intermediate outcomes were discussed through two gatherings involving focus groups and surveys. Data were transcribed, reviewed, thematically analyzed, and presented to the working group for validation. When participants compared their experiences with traditional health care to western health care, they described barriers to care that they had experienced in accessing medical doctors (e.g., racism, mistrust), as well as the benefits of traditional healing (e.g., based on relationships, holistic approach). All participants also noted that they had increased ownership over their choices around, and access to, health care, inclusive of both western and traditional options. They stressed that increased access to traditional health care is crucial within urban settings. Self-determination within Indigenous urban communities, and on a smaller scale, ownership for individuals, is a key determinant of health for Indigenous individuals and communities; this was made clear through the analysis of the research findings and is also supported within the literature. This research also demonstrates that access to traditional healing can enhance ownership for community members. These findings emphasize that there is a continued and growing need for support to aid urban Indigenous peoples in accessing traditional health care supports.

  14. The benefits of being self-determined in promoting physical activity and affective well-being among women recently treated for breast cancer.

    Science.gov (United States)

    Brunet, Jennifer; Burke, Shaunna M; Sabiston, Catherine M

    2013-10-01

    In this study, changes in motivational regulations in women following treatment for breast cancer were described. Changes in motivational regulations as predictors of subsequent change in light and moderate-to-vigorous physical activity (PA) and affect were also examined. Women [n = 150; M(age) = 54.41 (SD = 10.87) years] completed self-report questionnaires and wore an accelerometer for 7 days at Time 1 [M = 3.94 (SD = 3.08) months following primary treatment], as well as 3 (Time 2) and 6 (Time 3) months later. Data were analyzed using repeated-measures analysis of variance and path analysis using residual change scores. Identified regulation and self-determined motivation (i.e., combined intrinsic motivation and identified regulation) scores decreased over time (p positive affect (β = -0.16), ΔTime(1-2) in introjected (β = 0.25) and amotivation (β = 0.19) were related to ΔTime(2-3) in negative affect, and ΔTime(1-2) in self-determined motivation was related to ΔTime(2-3) in positive affect (β = 0.40) and moderate-to-vigorous PA (β = 0.21). Changes in motivational regulations were related to changes in PA and affect in the aftermath of breast cancer. Given the benefits of self-determined motivation, additional research is needed to develop and test interventions aimed at enhancing this type of motivation. Copyright © 2013 John Wiley & Sons, Ltd.

  15. Determinants and effects of medical students' core self-evaluation tendencies on clinical competence and workplace well-being in clerkship.

    Directory of Open Access Journals (Sweden)

    Yung Kai Lin

    Full Text Available Core self-evaluation (CSE is a personality trait that involves a person's evaluation of his or her own worth, competence, and capability. The objective of this study was to determine whether medical students' CSEs exert beneficial effects on their adaptation to their clerkship in terms of their clinical competence and workplace well-being and whether their preclinical academic performance can be a trait-relevant situation that enhances their CSE expression. In total, 127 medical students from 2 cohorts were included as participants in this study. We analyzed complete measures of personal background, objective and subjective preclinical academic performance (course evaluation grades and self-reported efficacy, CSE tendencies, and clinical competence (as objective structured clinical examination scores and workplace well-being (as compassion satisfaction and burnout during their 2-year clerkship. Mixed linear models for repeated measures and multiple regressions were employed. Participants' CSE tendencies had positive effects on their workplace compassion satisfaction and burnout but not on their clinical competence during their clerkship. Additionally, using the objective and subjective preclinical academic performance of the medical students as indicators, we observed that neither could be trait-relevant situations to enhance their CSE expression. CSE personality tendencies might be key to medical students' ability to noncognitively adapt to clinical training during their clerkships. These tendencies should be identified earlier so that mentors can provide prompt care and support to mentees (medical students during clerkships.

  16. Self-determined motivation in physical education and its links to motivation for leisure-time physical activity, physical activity, and well-being in general.

    Science.gov (United States)

    Bagøien, Tor Egil; Halvari, Hallgeir; Nesheim, Hallgeir

    2010-10-01

    The present study tested a trans-contextual model based on self-determination theory of the relations between motivation in physical education, motivation in leisure-time physical activity, physical activity, and psychological well-being. Participants were 329 Norwegian upper secondary school students (M age = 16.5 yr., SD = 0.7). Students' perceptions of autonomy-supportive teachers in physical education were expected to be positively associated with students' psychological needs satisfaction in physical education, which was expected to be positively related to autonomous motivation for physical education participation. In turn, autonomous motivation for physical education was expected to be positively associated with perceived competence and autonomous motivation for leisure-time physical activity, which both were expected to be positively associated with leisure-time physical activity and psychological well-being in general. Structural equation models and bootstrapping supported the hypotheses and the indirect links between variables. Sex differences indicate that more research is needed on how to motivate girls to be more physically active in leisure time.

  17. Psychological need satisfaction and well-being in adults aged 80 years and older living in residential homes: using a self-determination theory perspective.

    Science.gov (United States)

    Ferrand, Claude; Martinent, Guillaume; Durmaz, Neriman

    2014-08-01

    Based on the self-determination theory (SDT), this study aims to examine the psychological needs satisfaction of the elderly living in residential homes and their relationship with indicators of well-being, and then to test the contribution of each need on these indicators. Participants (N=100; Mage=86.7 years, SD=3.78) completed the measures of psychological needs satisfaction, purpose in life, personal growth and geriatric depression. Cluster analyses showed two distinct profiles: one profile with a high satisfaction of the three basic psychological needs and another profile with a low satisfaction of the three basic psychological needs. These profiles did not differ in terms of residents' characteristics, health problems and functional limitations. Multivariate analysis of variance (MANOVA) results revealed that the participants with the profile of a high satisfaction of psychological needs have significantly higher levels of purpose in life and personal growth than participants with the profile of a low satisfaction of psychological needs, and no effect of cluster membership on depressive feelings was reported. Moreover, for all participants, relatedness need satisfaction was significantly and positively related to personal growth, and autonomy and relatedness needs satisfaction was related to purpose of life. In conclusion, our results offer evidence that old age can be fruitful and, in consistent with SDT, show that autonomy and relatedness need satisfaction is positively associated with indicators of well-being such as purpose in life and personal growth, considered as essential components of optimal functioning. Copyright © 2014 Elsevier Inc. All rights reserved.

  18. Reproducibility determination of WHO classification of endometrial hyperplasia/well differentiated adenocarcinoma and comparison with computerized morphometric data in curettage specimens in Iran

    Directory of Open Access Journals (Sweden)

    Meysamie Ali

    2009-03-01

    Full Text Available Abstract Background Management of endometrial precancerous lesions has been of much debate due to inconsistencies in their classification, natural history and histologic diagnosis. Endometrial hyperplasia constitutes a wide range of histomorphologic features associated with high intra and interobserver diagnostic variability. Although traditional microscopic diagnosis is by far the most applicable method and the gold standard for histomorphologic diagnosis, digitized image analysis has been used as a powerful adjunct to maximize the histologic data retrieval and to add some detailed objective criteria for correct diagnosis in difficult cases. Methods A series of 100 endometrial curettage specimens with diagnosis of endometrial hyperplasia or well differentiated adenocarcinoma were blindly reviewed by 5 pathologists; their intra and interobserver reproducibility determined and further compared to the objective morphometric data i.e. D-score and volume percent of stroma (VPS. Results The results were assessed using the weighted kappa statistics. Mean intraobserver kappa value was 0.8690 (99.44% agreement. Mean interobserver kappa values by diagnostic category were: simple hyperplasia without atypia: 0.7441; complex hyperplasia without atypia: 0.3379; atypical hyperplasia: 0.3473, and well-differentiated endometrioid carcinoma: 0.6428; with a kappa value of 0.5372 for all cases combined. Interobserver agreement was in substantial rate for simple hyperplasia (SH and well differentiated adenocarcinoma (WDA but was in fair limit for complex hyperplasia (CH and atypical hyperplasia (AH. Intraobserver agreement was almost perfect. The specimens were divided in two groups according to the computerized morphometric analysis: Endometrial Hyperplasia (EH ( D Score ≥ 1 or VPS ≥ 55% and Endometrial Intraepithelial Neoplasia (EIN (D-Score Conclusion It may be necessary to make some revisions in WHO classification for endometrial hyperplasia and

  19. Hanford wells

    International Nuclear Information System (INIS)

    McGhan, V.L.; Myers, D.A.; Damschen, D.W.

    1976-03-01

    The Hanford Reservation contains about 2100 wells constructed from pre-Hanford Works to the present. As of Jan. 1976, about 1800 wells still exist, 850 of which were drilled to the groundwater table; 700 still contain water. This report provides the most complete documentation of these wells and supersedes all previous compilations, including BNWL-1739

  20. High-Throughput Determination of Sodium Danshensu in Beagle Dogs by the LCMS/MS Method, Employing Liquid-Liquid Extraction Based on 96-Well Format Plates.

    Science.gov (United States)

    Jiang, Jingjing; Zhao, Xin; Li, Xiuxiu; Wu, Shengyuan; Yu, Shidan; Lou, Yuefen; Fan, Guorong

    2017-04-25

    Sodium Danshensu (sodium d-(+)-β-(3,4-dihydroxyphenyl) lactate), one of the water-soluble ingredients in Salvia miltiorrhiza , exhibits potent relaxation of the coronary artery and anticoagulation effection. A high-throughput, rapid, and sensitive method combining liquid chromatography with electrospray ionization tandem mass spectrometry to determine the sodium danshensu in beagle dog plasma was developed and validated, using gallic acid as an internal standard (IS). Acidified plasma samples were extracted using 96-well liquid-liquid extraction, and were eluted on a CNW Athena C18 column (3 μm, 2.1 × 100 mm) by using a gradient mobile phase system of methanol and water (containing 0.2% formic acid). The mass spectrometric detection was achieved using negative ion electrospray ionization mode and monitoring the precursor→production combinations of m / z 197→135 for sodium danshensu and 169→125 for IS, in multiple reaction monitoring modes. Good linearity was achieved, and the linear range was 10-1000 ng/mL (R² > 0.996) with a quantification limit of 10 ng/mL for sodium danshensu in beagle dog plasma. The intra- and inter-day precision (RSD) ranged from 2.1% to 9.0%. The accuracy (RE) was between -8.6% and 5.7% at all quality control levels. The validated method was successfully applied to the pharmacokinetics study of sodium danshensu in beagle dog plasma after intravenous injection and oral administration of sodium danshensu.

  1. Water Well Locations - Conservation Wells

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The conservation well layer identifies the permitted surface location of oil and gas conservation wells that have not been plugged. These include active, regulatory...

  2. Analysis of inflow in geothermal wells to determine their maximum flow; Analisis del influjo en pozos geotermicos para la determinacion de sus flujos maximos

    Energy Technology Data Exchange (ETDEWEB)

    Aragon-Aguilar, Alfonso; Izquierdo-Montalvo, Georgina; Pal-Verma, Mahendra; Santoyo-Gutierrez, Socrates [Instituto de Investigaciones Electricas (Mexico); Moya-Acosta, Sara L [Centro Nacional de Investigacion y Desarrollo Tecnologico (Mexico)

    2009-01-15

    Inflow performance relationships developed for petroleum and geothermal reservoirs are presented. Four of them were selected to be used in this work. Such relationships were developed considering features of a typical geothermal system. The performance of the selected relationships was assessed using data from production tests in several wells of different fields. A methodology is presented to determine the value of the maximum flow (W{sub max}) from the inflow relationships; its application is demonstrated using the data of the 10 production tests. It was found that the calculated value of W{sub max} under stabilization conditions may be related to the reservoir response. In general, there is a good agreement between the calculated values of W{sub max} from the different methods. The differences in the W{sub max} values vary within 10%. It was found that the stability in the calculated values of W{sub max} as a response of the reservoir is a function of the flow magnitude. So, the wells with flow greater than 200 t/h reach the stability of W{sub max} at openings 50% less of their total capacity. [Spanish] Se presentan las relaciones del comportamiento de influjo desarrolladas para yacimientos petroleros y geotermicos. Se seleccionaron cuatro de ellas para usar en este trabajo. Tales relaciones fueron desarrolladas considerando condiciones de un sistema geotermico tipico. Se analizo el comportamiento de las relaciones escogidas utilizando datos de pruebas de produccion de varios pozos de diferentes campos. Se presenta una metodologia para determinar el valor del flujo maximo (W{sub max}) a partir de las relaciones de influjo; se demuestra su aplicabilidad usando los datos de diez pruebas de produccion. Se encontro que el valor de W{sub max} calculado bajo condiciones de estabilizacion se puede relacionar con la respuesta del yacimiento. En general se encuentra buena concordancia entre los valores calculados de W{sub max} usando los diferentes metodos. Las

  3. Amazing wells

    Energy Technology Data Exchange (ETDEWEB)

    Ross, E.; Leschart, M.; Mahoney, J.; Smith, M.

    2002-02-01

    Six wells and a drilling rig, setting company, national and world records such as deepest well, longest horizontal well, and record setting completion technology are described. Steam assisted gravity drainage (SAGD) is mainly responsible for these outstanding successes. Discovered more than 20 years ago by a then Imperial oil scientist (Dr. Roger Butler) SAGD promises recovery rates of about 70 per cent for the right reservoir; more than twice the 25 to 30 per cent recovery rate with cyclic stimulation at Cold Lake and an average recovery rate of about 28 per cent for all Alberta light, medium and heavy oil wells. The seven facilities discussed in this article are : (1) Alberta Energy Company's Forest Hill oil sands project near Cold Lake, the first commercial SAGD operation where well pairs are producing 1,200-1,500 bbls per day; (2) Talisman Energy's Lovett River wells, which hold the company's depth record for a horizontal well in the Alberta Foothills; (3) Also owned by Talisman Energy in the Buchan Field in the North Sea, this well is famous for the fact that it was drilled with coiled tubing from a floating production vessel; : (4) in the Peco Field, south of Edson Alberta and owned by EOG Resources Canada, this well holds the Canadian offshore record for a single run using rotary steerable technology; (5) Burlington Resources Canada 's Burlington HZ Hinton 2-34-52-26 W5M well is best known for its record setting extended reach open hole coiled tubing job; (6) another Burlington Resources well holds the record for the deepest one-trip whipstock system ever run in Canada and milled successfully in one trip; and (7) a drilling rig in the Wabasca-Brintnell area of northern Alberta, owned by Canadian Natural Resources Limited, holds the record for drilling the largest number of horizontal holes in one year with the same rig.

  4. High-Throughput Determination of Sodium Danshensu in Beagle Dogs by the LCMS/MS Method, Employing Liquid-Liquid Extraction Based on 96-Well Format Plates

    Directory of Open Access Journals (Sweden)

    Jingjing Jiang

    2017-04-01

    Full Text Available Sodium Danshensu (sodium d-(+-β-(3,4-dihydroxyphenyl lactate, one of the water-soluble ingredients in Salvia miltiorrhiza, exhibits potent relaxation of the coronary artery and anticoagulation effection. A high-throughput, rapid, and sensitive method combining liquid chromatography with electrospray ionization tandem mass spectrometry to determine the sodium danshensu in beagle dog plasma was developed and validated, using gallic acid as an internal standard (IS. Acidified plasma samples were extracted using 96-well liquid-liquid extraction, and were eluted on a CNW Athena C18 column (3 μm, 2.1 × 100 mm by using a gradient mobile phase system of methanol and water (containing 0.2% formic acid. The mass spectrometric detection was achieved using negative ion electrospray ionization mode and monitoring the precursor→production combinations of m/z 197→135 for sodium danshensu and 169→125 for IS, in multiple reaction monitoring modes. Good linearity was achieved, and the linear range was 10–1000 ng/mL (R2 > 0.996 with a quantification limit of 10 ng/mL for sodium danshensu in beagle dog plasma. The intra- and inter-day precision (RSD ranged from 2.1% to 9.0%. The accuracy (RE was between −8.6% and 5.7% at all quality control levels. The validated method was successfully applied to the pharmacokinetics study of sodium danshensu in beagle dog plasma after intravenous injection and oral administration of sodium danshensu.

  5. Inverse Porosity-Hydraulic Conductivity Relationship in Sand-and-Gravel Aquifers Determined From Analysis of Geophysical Well Logs: Implications for Transport Processes

    Science.gov (United States)

    Morin, R. H.

    2004-05-01

    It is intuitive to think of hydraulic conductivity K as varying directly and monotonically with porosity P in porous media. However, laboratory studies and field observations have documented a possible inverse relationship between these two parameters in unconsolidated deposits under certain grain-size distributions and packing arrangements. This was confirmed at two sites in sand-and-gravel aquifers on Cape Cod, Massachusetts, where sets of geophysical well logs were used to examine the interdependence of several aquifer properties. Along with K and P, the resistivity R and the natural-gamma activity G of the surrounding sediments were measured as a function of depth. Qualitative examination of field results from the first site was useful in locating a contaminant plume and inferred an inverse relation between K and P; this was substantiated by a rigorous multivariate analysis of log data collected from the second site where K and P were determined to respond in a bipolar manner among the four independent variables. Along with this result come some implications regarding our conceptual understanding of contaminant transport processes in the shallow subsurface. According to Darcy's law, the interstitial fluid velocity V is proportional to the ratio K/P and, consequently, a general inverse K-P relationship implies that values of V can extend over a much wider range than conventionally assumed. This situation introduces a pronounced flow stratification within these granular deposits that can result in large values of longitudinal dispersivity; faster velocities occur in already fast zones and slower velocities in already slow zones. An inverse K-P relationship presents a new perspective on the physical processes associated with groundwater flow and transport. Although the results of this study apply strictly to the Cape Cod aquifers, they may merit a re-evaluation of modeling approaches undertaken at other locations having similar geologic environments.

  6. Live Well

    Science.gov (United States)

    ... Health Conditions Live Well Mental Health Substance Use Smoking Healthy Diet Physical Activity Family Planning Living with HIV: Travel ... to his or her health and well-being. Smoking - Tobacco use is the ... year. Healthy Diet - No matter your HIV status, healthy eating is ...

  7. Hanford wells

    International Nuclear Information System (INIS)

    Chamness, M.A.; Merz, J.K.

    1993-08-01

    Records describing wells located on or near the Hanford Site have been maintained by Pacific Northwest Laboratory and the operating contractor, Westinghouse Hanford Company. In support of the Ground-Water Surveillance Project, portions of the data contained in these records have been compiled into the following report, which is intended to be used by those needing a condensed, tabular summary of well location and basic construction information. The wells listed in this report were constructed over a period of time spanning almost 70 years. Data included in this report were retrieved from the Hanford Envirorunental Information System (HEIS) database and supplemented with information not yet entered into HEIS. While considerable effort has been made to obtain the most accurate and complete tabulations possible of the Hanford Site wells, omissions and errors may exist. This document does not include data on lithologic logs, ground-water analyses, or specific well completion details

  8. Militantly Well

    DEFF Research Database (Denmark)

    Vigh, Henrik Erdman

    2015-01-01

    futures that transcend conflict engagement and wartime suffering for young militiamen. It clarifies the positive prospects that are expected to lie beyond the known horrors of war. Though conflict and warfare may provide strange points of departure for talking about well-being, imaginaries of happiness...... stand out from a background of hardship and are talked about in both a quite concrete way, as a lack of insecurity, as well as in an abstract way, as realization of social being. However, for most of the people I talk to, happiness remains elusive and evades their desperate attempts to grasp it...

  9. The SAWO (Small And Well Organized) avatar teaches the importance of the aggregates on the soil system and how to determine their stability

    Science.gov (United States)

    Mataix-Solera, Jorge; Cerdà, Artemi; Jordán, Antonio; Úbeda, Xavier; Pereira, Paulo

    2015-04-01

    Soil structure is the key factor that determine the soil quality as control the organic matter turnnover, soil biology and soil erodibility (Cerdà, 1996; 1998; Wick et al., 2014; Gelaw, 2015). There is a need to understand better the factors and the processes that act on the soil aggregation and the dynamics of the soil aggregation, which will make easier to understand the soil system functioning (Jordán et al., 2011; Jordán et al., 2012; Pulido Moncada et al., 2013). Fire, mines, grazing and agricultura (Cerdà, 2000; Mataix Solera et al., 2011; Cerdà et al., 2012; Hallett et al., 2014; Lozano et al., 2013) determines how the soil structure is highly affected by the humankind. And this determines the sustainability of the land managements (García Orenes et al., 2012; K¨ropfl et al., 2013; Mekuria and Aynekulu, 2013; Taguas et al., 2013; Zhao et al., 2013). Aggregates are Small And Well Organized (SAWO) structures that allow the water to flow, the air fill the porous and the life to be diverse and abundant in the soil. The SAWO avatar will teach the importance of the functions and the services of the aggregates to students and other scientists, but also to any audience. This means that the experiments and the vocabulary to be used by SAWO will be very wide and rich. The Avatar SAWO will use different strategies and skills to teach the soil aggregation properties and characteristics. And also, how to measure. Easy to carry out experiments will be shown by SAWO to measure the aggregate stability in the field and in the laboratory, and the soil sampling in the field. The SAWO avatar will play a special attention to the impact of forest fires on aggregate stability changes and how to measure. The SAWO avatar will teach how to take samples in the field, how to transport and manage in the laboratory, and finally which measurements and test can be done to determine the aggregate stability. Acknowledgements To the "Ministerio de Economía and Competitividad" of

  10. Determination of the relationship between radon anomalies and earthquakes in well waters on the Akşehir-Simav Fault System in Afyonkarahisar province, Turkey.

    Science.gov (United States)

    Ali Yalım, Hüseyin; Sandıkcıoğlu, Ayla; Ertuğrul, Oğuz; Yıldız, Ahmet

    2012-08-01

    Radon concentrations were measured in water of 4 wells on the Akşehir-Simav Fault System (ASFS) in Afyonkarahisar province from August 2009 to September 2010 and the relationship between radon anomalies and earthquake magnitudes was examined. Anomalous decreases in radon concentrations in the wells were observed to precede the earthquakes of magnitudes ranging from 2.6 M to 3.9 M. The correlation coefficients (R(2)) were 0.79, 0.93, 0.98 and 0.90 for the wells from 1 to 4, respectively, indicating that radon minima and earthquake magnitude were well correlated and suggesting that the groundwater radon, when observed at suitable sites, can be a sensitive tracer for strain changes in crust associated with earthquake occurrences. The relationship between the two parameters can be further improved as additional radon anomalies precursor to possible large earthquakes are recorded in the wells located on the ASFS in the future. This study strongly suggests that the continuous observations of radon concentrations in well water, especially at well 3, should be carried forward. Copyright © 2012 Elsevier Ltd. All rights reserved.

  11. Wellness centrum

    OpenAIRE

    Krchňák, Petr

    2016-01-01

    Diplomová práce „Wellness centrum'' je zpracována ve formě prováděcí dokumentace obsahující všechny náležitosti dle platných norem a předpisů. Navržený objekt je řešen jako třípodlažní budova. Objekt slouží veřejnosti k rekreaci a sportu. V 1S je umístěno technické zázemí, zázemí pro zaměstnance, šatny a posilovna. V 1 NP se nachází kavárna a wellness. Ve 2NP se nachází kanceláře pro administrativu budovy, masáže, solárium, šatny a fitness sál. Budova je založena na základových patkách a nosn...

  12. The health of women and girls determines the health and well-being of our modern world: A white paper from the International Council on Women's Health Issues.

    Science.gov (United States)

    Davidson, Patricia M; McGrath, Sarah J; Meleis, Afaf I; Stern, Phyllis; Digiacomo, Michelle; Dharmendra, Tessa; Correa-de-Araujo, Rosaly; Campbell, Jacquelyn C; Hochleitner, Margarethe; Messias, Deanne K H; Brown, Hazel; Teitelman, Anne; Sindhu, Siriorn; Reesman, Karen; Richter, Solina; Sommers, Marilyn S; Schaeffer, Doris; Stringer, Marilyn; Sampselle, Carolyn; Anderson, Debra; Tuazon, Josefina A; Cao, Yingjuan; Krassen Covan, Eleanor

    2011-10-01

    The International Council on Women's Health Issues (ICOWHI) is an international nonprofit association dedicated to the goal of promoting health, health care, and well-being of women and girls throughout the world through participation, empowerment, advocacy, education, and research. We are a multidisciplinary network of women's health providers, planners, and advocates from all over the globe. We constitute an international professional and lay network of those committed to improving women and girl's health and quality of life. This document provides a description of our organization mission, vision, and commitment to improving the health and well-being of women and girls globally.

  13. "Well, it's nobody's responsibility but my own." A qualitative study to explore views about the determinants of health and prevention of knee pain in older adults.

    Science.gov (United States)

    Jinks, Clare; Ong, Bie Nio; O'Neill, Tracey

    2010-03-22

    Dahlgren and Whitehead's 'rainbow' outlines key determinants of health and has been widely adopted within public health policy and research. Public understanding regarding the determinants of health is, however, relatively unknown, particularly in relation to common chronic joint problems like knee pain. We aimed to explore individual attitudes to the prevention of knee pain, and assess how people make sense of their lives by using the rainbow model to explore social determinants of health. Twenty-eight semi-structured interviews were undertaken with older adults living in the community. The format of the interview enabled individuals to first tell their story, then the rainbow picture was used to further prompt discussion. Interviews were digitally recorded and transcripts were fully transcribed. Qualitative computer software package NVivo 2 was used to manage the data. Thematic analysis was undertaken. Individual responsibility for health was a dominant theme although the role of health and statutory services was also recognised. Barriers to uptake of prevention activities included cultural perceptions, attitudes towards work and perceived costs of prevention activities. Participants used the rainbow for locating their personal life within a wider social, economic and policy context. People view individual responsibility as key to maintaining health and draw upon the past, present and future expectations when considering social determinants of their health. The rainbow picture does have relevance at the individual level and can help to formulate more dynamic and contextualised approaches to the prevention of health conditions in community living adults.

  14. "Well, it's nobody's responsibility but my own". A qualitative study to explore views about the determinants of health and prevention of knee pain in older adults.

    LENUS (Irish Health Repository)

    Jinks, Clare

    2010-03-22

    Abstract Background Dahlgren and Whitehead\\'s \\'rainbow\\' outlines key determinants of health and has been widely adopted within public health policy and research. Public understanding regarding the determinants of health is, however, relatively unknown, particularly in relation to common chronic joint problems like knee pain. We aimed to explore individual attitudes to the prevention of knee pain, and assess how people make sense of their lives by using the rainbow model to explore social determinants of health. Methods Twenty-eight semi-structured interviews were undertaken with older adults living in the community. The format of the interview enabled individuals to first tell their story, then the rainbow picture was used to further prompt discussion. Interviews were digitally recorded and transcripts were fully transcribed. Qualitative computer software package NVivo 2 was used to manage the data. Thematic analysis was undertaken. Results Individual responsibility for health was a dominant theme although the role of health and statutory services was also recognised. Barriers to uptake of prevention activities included cultural perceptions, attitudes towards work and perceived costs of prevention activities. Participants used the rainbow for locating their personal life within a wider social, economic and policy context. Conclusions People view individual responsibility as key to maintaining health and draw upon the past, present and future expectations when considering social determinants of their health. The rainbow picture does have relevance at the individual level and can help to formulate more dynamic and contextualised approaches to the prevention of health conditions in community living adults.

  15. Use of geophysical methods for determination of physico-mechanical properties of coal-bearing rocks in wells of the Vorkutskoye field

    International Nuclear Information System (INIS)

    Grechukhin, V.V.; Iokhin, S.B.; Baklanov, V.G.; Chernikov, A.G.

    1974-01-01

    The total porosity (P), electric resistivity (Er), density, bulk density, water content, velocity of longitudinal elastic waves (Vl), intensity of natural γ-radiation, and polarization self-potential (Ps) are determined of the lithol. different interlayered sandstones, argillites, mudstones, siltstones, and concretions. A direct linear correlation exists between these parameters and the mineralogical composition, coefficient of sorting, and sedimentation conditions

  16. Determination of the uranium concentration in public supply drink water wells of the uranium-phosphatic region of the Pernambuco state, Brazil

    International Nuclear Information System (INIS)

    Silva, Cleomacio Miguel da; Sousa, Gustavo Henrique; Amaral, Romilton dos Santos

    2002-01-01

    This work was developed for the determination of the uranium levels in the water of the public drink water supply of the region, comparing with levels established by the Ministry of Health, for evaluation of the health hazards of the population by the water consumption

  17. Social ecology of child soldiers: child, family, and community determinants of mental health, psychosocial well-being, and reintegration in Nepal.

    Science.gov (United States)

    Kohrt, Brandon A; Jordans, Mark J D; Tol, Wietse A; Perera, Em; Karki, Rohit; Koirala, Suraj; Upadhaya, Nawaraj

    2010-11-01

    This study employed a social ecology framework to evaluate psychosocial well-being in a cross-sectional sample of 142 former child soldiers in Nepal. Outcome measures included the Depression Self Rating Scale (DSRS), Child Posttraumatic Stress Disorder Symptom Scale (CPSS), and locally developed measures of functional impairment and reintegration. Hierarchical linear modeling was used to examine the contribution of factors at multiple levels. At the child level, traumatic exposures, especially torture, predicted poor outcomes, while education improved outcomes. At the family level, conflict-related death of a relative, physical abuse in the household, and loss of wealth during the conflict predicted poor outcomes. At the community level, living in high caste Hindu communities predicted lack of reintegration supports. Ultimately, social ecology is well suited to identify intervention foci across ecological levels based on community differences in vulnerability and protective factors.

  18. The importance of autonomy support and the mediating role of work motivation for well-being: testing self-determination theory in a Chinese work organisation.

    Science.gov (United States)

    Nie, Youyan; Chua, Bee Leng; Yeung, Alexander Seeshing; Ryan, Richard M; Chan, Wai Yen

    2015-08-01

    We examine relations between perceived organisational autonomy support and different types of work motivation and well-being outcomes in 266 teachers from two government schools in China. We hypothesised that greater autonomy support would be associated with more autonomous forms of employee motivation, and that teacher motivation would in turn mediate the effects of autonomy support on indicators of work well-being (i.e., job satisfaction, work stress and physical ill symptoms). Results generally supported the hypothesised relations between perceived autonomy support and SDT's five types of motivations. Findings also showed that perceived autonomy support predicted job satisfaction directly and indirectly through the mediating roles of intrinsic motivation, identified regulation, introjected regulation and external regulation. Perceived autonomy support predicted work stress directly and indirectly through the mediating roles of external regulation and amotivation. Autonomy support also predicted illness symptoms via the mediating roles of intrinsic motivation, introjected regulation and amotivation. The current findings highlight how perceived organisational support for autonomy relates to motivational differences in a Chinese work context, and the potential relevance of autonomy support for employee well-being. © 2014 International Union of Psychological Science.

  19. Wellness hotel

    OpenAIRE

    Bambas, Vratislav

    2013-01-01

    Novostavba Wellness hotelu. Objekt je částečně podsklepen. Hotel se skládá ze tří částí. Střední trakt je železobetonový skelet a má pět nadzemních podlaží. Tato část slouží jako vstupní hala a hlavní schodiště. Boční trakty mají čtyři nadzemní podlaží a jejich nosný systém je příčný stěnový, zděný, ze systému Porotherm. V suterénu se nachází zázemí hotelu a bazén. Do přízemí je umístěno restaurační zařízení. Ve druhém patře se nacházejí pokoje, posilovna a služby. V posledním patře jsou pouz...

  20. Well acidizing

    Energy Technology Data Exchange (ETDEWEB)

    Street, E H

    1980-01-23

    The apparatus relates in particular to a well-treating process in which an aqueous acid solution having a pH of < 2 is injected into a subterranean reservoir in a manner such that materials that contain ferric ions are present in the acid and, as the acid reacts within the reservoir and attains a pH exceeding 3, tend to be precipitated as ferric ion-containing solid materials that may plug the pores of the reservoir. Such a precipitation is prevented by dissolving in the acid solution an amount of 5-sulfosalicylic acid which is at least sufficient to sequester significant proportions of ferric ions when the pH of the acid is from 0.5 to 3 but is less than enough to cause a significant salting-out of solid materials, and an amount of citric acid which is at least sufficient to sequester significant proportions of ferric ions when the pH of the acid is from 3 to 6 but is less than enough to precipitate a significant amount of calcium citrate. The amount of the 5-sulfosalicylic acid may be from 0.01 to 0.05 moles/l and the amount of citric acid is from 0.001 to 0.009 moles/l. 11 claims.

  1. Tantalum electrodes modified with well-aligned carbon nanotube-Au nanoparticles: application to the highly sensitive electrochemical determination of cefazolin.

    Science.gov (United States)

    Fayazfar, Haniyeh; Afshar, Abdollah; Dolati, Abolghasem

    2014-07-01

    Carbon nanotube/nanoparticle hybrid materials have been proven to exhibit high electrocatalytic activity suggesting broad potential applications in the field of electroanalysis. For the first time, modification of Ta electrode with aligned multi-walled carbon nanotubes/Au nanoparticles introduced for the sensitive determination of the antibiotic drug, cefazolin (CFZ). The electrochemical response characteristics of the modified electrode toward CFZ were investigated by means of cyclic and linear sweep voltammetry. The modified electrode showed an efficient catalytic activity for the reduction of CFZ, leading to a remarkable decrease in reduction overpotential and a significant increase of peak current. Under optimum conditions, the highly sensitive modified electrode showed a wide linear range from 50 pM to 50 μM with a sufficiently low detection limit of 1 ± 0.01 pM (S/N = 3). The results indicated that the prepared electrode presents suitable characteristics in terms of sensitivity (458.2 ± 2.6 μAcm(-2)/μM), accuracy, repeatability (RSD of 1.8 %), reproducibility (RSD of 2.9 %), stability (14 days), and good catalytic activity in physiological conditions. The method was successfully applied for accurate determination of trace amounts of CFZ in pharmaceutical and clinical preparations without the necessity for samples pretreatment or any time-consuming extraction or evaporation steps prior to the analysis.

  2. Single-well reactive tracer test and stable isotope analysis for determination of microbial activity in a fast hydrocarbon-contaminated aquifer

    International Nuclear Information System (INIS)

    Burbery, L.; Cassiani, G.; Andreotti, G.; Ricchiuto, T.; Semple, K.T.

    2004-01-01

    Single-well reactive tracer tests, such as the push-pull test are useful tools for characterising in-situ bioattenuation processes in contaminated aquifers. However, the analytical models that are used to interpret push-pull data may be over-simplified, and potentially overlook important processes responsible for the frequent discrepancy between predicted and observed results obtained from push-pull tests. In this study, the limitations underlying the push-pull test methodology were investigated and were supported with results from a push-pull test conducted in a sulphate-reducing aquifer contaminated by crude oil. Poor ( 20% mass recoveries were achieved. Push-pull test data collected from sulphate-reducing aquifers indicate that the assumption of a well-mixed batch reactor system is incorrect and that reaction rates obtained from push-pull tests in such systems may be affected by the extraction regime implemented. Evidence of microbial respiration of the reactive tracer was provided by stable sulphur isotope analysis, from which an isotope fractionation factor of +9.9±8.1%o was estimated. The stable isotope data support the argument that reaction rates calculated using push-pull tests are not uniformly distributed in space and time and are likely to be influenced by heterogeneities in the flow field. - Reaction rates calculated by push-pull tests are not uniformly distributed in time and space

  3. Sense of Coherence as a Determinant of Psychological Well-Being Across Professional Groups of Aid Workers Exposed to War Trauma.

    Science.gov (United States)

    Veronese, Guido; Pepe, Alessandro

    2015-06-18

    The present study aims to test whether sense of coherence (SOC) acts as a determinant of positive psychological functioning in aid workers directly exposed to warfare. Specifically, we performed multiple regression analyses to compare different groups of aid workers in terms of the effects of SOC and cumulative trauma on their psychological distress. Palestinian helpers, both professional and non-professional (N = 159) completed three self-reported measures: the General Health questionnaire, Sense of Coherence Scale, and Impact of Events Scale. The findings bear out the predictive power of SOC and posttraumatic stress disorder (PTSD) in relation to mental health across different professional groups. In particular, volunteers without a specific professional profile, psychiatrists, medical doctors, and less markedly counselors seemed to protect their mental health through a SOC. Clinical implications and recommendations for training and supervision are discussed. © The Author(s) 2015.

  4. Understanding unemployed people's job search behaviour, unemployment experience and well-being: a comparison of expectancy-value theory and self-determination theory.

    Science.gov (United States)

    Vansteenkiste, Maarten; Lens, Willy; De Witte, Hans; Feather, N T

    2005-06-01

    Previous unemployment research has directly tested hypotheses derived from expectancy-value theory (EVT; Feather, 1982, 1990), but no comparative analysis has been executed with another motivational framework. In one large study with 446 unemployed people, separate analyses provided good evidence for predictions derived from both EVT and self-determination theory (SDT; Deci & Ryan, 1985, 2000). Comparative analyses indicated that the type of people's job search motivation, as conceptualized through the notions of autonomous versus controlled motivation within SDT, is an important predictor of people's unemployment experience and wellbeing, beyond people's strength of motivation assessed within EVT through expectancies of finding a job and employment value. The importance of simultaneously testing two theoretical frameworks is discussed.

  5. Exploitation of phosphorescent labelling reagent of fullerol-fluorescein isothiocyanate and new method for the determination of trace alkaline phosphatase as well as forecast of human diseases

    International Nuclear Information System (INIS)

    Liu Jiaming; Huang Xiaomei; Liu Zhenbo; Lin Shaoqin; Li Feiming; Gao Fei; Li Zhiming; Zeng Liqing; Li Lianying; Ouyang Ying

    2009-01-01

    A new phosphorescent labelling reagent consisting of fullerol, fluorescein isothiocyanate and N,N-dimethylaniline (F-ol-(FITC) n -DMA) was developed. The mode of action is based on the reactivity of the active -OH group in F-ol with the -COOH group of FITC to form an F-ol-(FITC) n -DMA complex containing several FITC molecules. F-ol-(FITC) n -DMA increased the number of luminescent molecules in the biological target of WGA-AP-WGA-F-ol-(FITC) n -DMA (WGA and AP are wheat germ agglutinin and alkaline phosphatase, respectively) which improved the sensitivity using solid substrate room temperature phosphorimetry (SSRTP) detection. The proposed method provided high sensitivity and strong specificity for WGA-AP. The limit of detection (LD) was 0.15 ag AP spot -1 for F-ol and 0.097 ag AP spot -1 for FITC in F-ol-(FITC) n -DMA, which was lower than the method using single luminescent molecules of F-ol-DMA and FITC-DMA to label WGA (0.20 ag AP spot -1 for F-ol-DMA and 0.22 ag AP spot -1 for FITC-DMA). Results for the determination of AP in human serum were in good agreement with those obtained by enzyme-linked immunosorbent assay. The mechanism of F-ol-(FITC) n -DMA labelling of WGA was discussed.

  6. Determination of the vapor–liquid transition of square-well particles using a novel generalized-canonical-ensemble-based method

    International Nuclear Information System (INIS)

    Zhao Liang; Tu Yu-Song; Xu Shun; Zhou Xin

    2017-01-01

    The square-well (SW) potential is one of the simplest pair potential models and its phase behavior has been clearly revealed, therefore it has become a benchmark for checking new theories or numerical methods. We introduce the generalized canonical ensemble (GCE) into the isobaric replica exchange Monte Carlo (REMC) algorithm to form a novel isobaric GCE-REMC method, and apply it to the study of vapor–liquid transition of SW particles. It is validated that this method can reproduce the vapor–liquid diagram of SW particles by comparing the estimated vapor–liquid binodals and the critical point with those from the literature. The notable advantage of this method is that the unstable vapor–liquid coexisting states, which cannot be detected using conventional sampling techniques, are accessed with a high sampling efficiency. Besides, the isobaric GCE-REMC method can visit all the possible states, including stable, metastable or unstable states during the phase transition over a wide pressure range, providing an effective pathway to understand complex phase transitions during the nucleation or crystallization process in physical or biological systems. (paper)

  7. Laboratory testing of rock and salt samples for determination of specific gravity and total porosity of the Zeeck No. 1 well (PD-7), Palo Duro Basin, Texas: unanalyzed data

    International Nuclear Information System (INIS)

    1984-07-01

    This report contains the specific gravity and total porosity determinations for rock and salt samples from Zeeck No. 1 Well of the Permian Basin. The laboratory test samples were measured for water content, apparent specific gravity, specific gravity of solids, total porosity and effective porosity. Specimen descriptions including specimen number, formation/group, and lithologic description as well as typical data sheets are included in the appendices. These data are preliminary. They have been neither analyzed nor evaluated

  8. Trions in quantum wells

    CERN Document Server

    Peeters, F M; Varga, K

    2002-01-01

    The ground-state energy of three-particle systems consisting of electrons and holes as found in semiconducting quantum wells is studied. The degree of confinement is determined by the quantum-well width and we can vary the dimensionality of the system from two to three dimensions. The energy levels of the system can further be altered by the application of an external magnetic field which is directed perpendicular to the well. Refs.5 (author)

  9. Experimental determination of the electron effective masses and mobilities in each dimensionally-quantized subband in an InxGa1−xAs quantum well with InAs inserts

    International Nuclear Information System (INIS)

    Kulbachinskii, V. A.; Oveshnikov, L. N.; Lunin, R. A.; Yuzeeva, N. A.; Galiev, G. B.; Klimov, E. A.; Maltsev, P. P.

    2015-01-01

    HEMT structures with In 0.53 Ga 0.47 As quantum well are synthesized using molecular-beam epitaxy on InP substrates. The structures are double-side Si δ-doped so that two dimensionally-quantized subbands are occupied. The effect of the central InAs nanoinsert in the quantum well on the electron effective masses m* and mobilities in each subband is studied. For experimental determination of m*, the quantum μ q and transport μ t mobilities of the two-dimensional electron gas in each dimensionally-quantized subband, the Shubnikov-de Haas effect is measured at two temperatures of 4.2 and 8.4 K. The electron effective masses are determined by the temperature dependence of the oscillation amplitudes, separating the oscillations of each dimensionally-quantized subband. The Fourier spectra of oscillations are used to determine the electron mobilities μ q and μ t in each dimensionally-quantized subband. It is shown that m* decreases as the InAs-nanoinsert thickness d in the In 0.53 Ga 0.47 As quantum well and electron mobilities increase. The maximum electron mobility is observed at the insert thickness d = 3.4 nm

  10. Determination of the water quality and radon content in wells located at the Cuitzeo basin, Michoacan; Determinacion de la calidad del agua y contenido de radon en pozos localizados en la Cuenca de Cuitzeo, Michoacan

    Energy Technology Data Exchange (ETDEWEB)

    Alfaro, R.; Segovia, N.; Pena, P.; Lopez, M.B.E. [Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico); Martinez, V. [CIRA-UAEM, Cerro de Coatepec s/n, Ciudad Universitaria, Toluca, Estado de Mexico (Mexico); Armienta, M.A. [IGFUNAM, 04510 Mexico D.F. (Mexico); Rangel, J. [CNA Av. Acueducto 3626 Col. Ocolusen, Morelia, Michoacan (Mexico); Seidel, J.L. [ISTEEM, M.S.E. Montpellier (France)

    2001-07-01

    Major elements, trace elements, presence of microorganisms and, radon content in wells located in urban and rural zones around the Cuitzeo lake at the Lerma River basin in Mexico were determined. The techniques to determine the parameters were the liquid scintillation method for {sup 222} Rn, Icp-Ms for trace elements, conventional chemical analysis for major components and the counting in slide for the bacteriological determination. The average concentration of radon oscillated between 0.88 and 4.75 Bq/lt which, indicated a fast transit from the reload toward the spring exit. The major components and trace elements are analysed considering the geological characteristics of the sites in study. Faecal coliforms were not found. (Author)

  11. Optimizing well intervention routes

    Energy Technology Data Exchange (ETDEWEB)

    Paiva, Ronaldo O. [PETROBRAS S.A., Vitoria, ES (Brazil); Schiozer, Denis J.; Bordalo, Sergio N. [Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia Mecanica. Centro de Estudo do Petroleo (CEPETRO)]. E-mail: denis@dep.fem.unicamp.br; bordalo@dep.fem.unicamp.br

    2000-07-01

    This work presents a method for optimizing the itinerary of work over rigs, i.e., the search for the route of minimum total cost, and demonstrates the importance of the dynamics of reservoir behaviour. The total cost of a route includes the rig expenses (transport, assembly and operation), which are functions of time and distances, plus the losses of revenue in wells waiting for the rig, which are also dependent of time. A reservoir simulator is used to evaluate the monetary influence of the well shutdown on the present value of the production curve. Finally, search algorithms are employed to determine the route of minimal cost. The Simulated Annealing algorithm was also successful in optimizing the distribution of a list of wells among different work over rigs. The rational approach presented here is recommended for management teams as a standard procedure to define the priority of wells scheduled for work over. (author)

  12. Single well techniques

    International Nuclear Information System (INIS)

    Drost, W.

    1983-01-01

    The single well technique method includes measurement of parameters of groundwater flow in saturated rock. For determination of filtration velocity the dilution of radioactive tracer is measured, for direction logging the collimeter is rotated in the probe linked with the compass. The limiting factor for measurement of high filtration velocities is the occurrence of turbulent flow. The single well technique is used in civil engineering projects, water works and subsurface drainage of liquid waste from disposal sites. The radioactive tracer method for logging the vertical fluid movement in bore-holes is broadly used in groundwater survey and exploitation. (author)

  13. Determining the nature of excitonic dephasing in high-quality GaN/AlGaN quantum wells through time-resolved and spectrally resolved four-wave mixing spectroscopy

    Science.gov (United States)

    Gallart, M.; Ziegler, M.; Crégut, O.; Feltin, E.; Carlin, J.-F.; Butté, R.; Grandjean, N.; Hönerlage, B.; Gilliot, P.

    2017-07-01

    Applying four-wave mixing spectroscopy to a high-quality GaN/AlGaN single quantum well, we report on the experimental determination of excitonic dephasing times at different temperatures and exciton densities in III-nitride heterostructures. By comparing the evolution with the temperature of the dephasing and the spin-relaxation rate, we conclude that both processes are related to the rate of excitonic collisions. When spin relaxation occurs in the motional-narrowing regime, it remains constant over a large temperature range as the spin-precession frequency increases linearly with temperature, hence compensating for the observed decrease in the dephasing time. From those measurements, a value of the electron-hole exchange interaction strength of 0.45 meV at T =10 K is inferred.

  14. Determination of local texture and stress distributions on submicro-/nanocrystalline multiphase gradient materials by means of two-dimensional X-ray diffraction as well by means of analytical and numerical modeling approaches

    International Nuclear Information System (INIS)

    Eschke, Andy

    2015-01-01

    Examination object of the present thesis was the determination of local distributions of crystallographic texture and mechanical (eigen-)stresses in submicro-/nan0crystalline many-phase gradient materials. For this at the one hand experimental methods of the two-dimensional X-ray diffraction were applied as well as at the other hand theoretical calculations performed by means of analytical and numerical modeling approaches. The interest for the material is founded on the fact that ultrafine-granular materials because of their mechanical propertier (for instance hardness, ductility) ar to be stressed for advanced engineering application purposes. Furthermore the application of many-phase gradient materials makes to some extent possible a manufacture for measure concerning physical properties and by this a manifold of application potentials as well as a tuning of the material properties to the differential requirements in the application fields. This measure tailoring is related both to the degree of gradiation and to the special composition of the composite materials by the chosen starting materials. The work performed in the framework of the excellence cluster ''European Centre for Emerging Materials and Processes Dresden (ECEMP)'' of the Saxonian excellence initiative aimed especially to the analysis of an especially processed, ultrafine-granular Ti/Al composite, which was and is research object of the partial ECEMP project ''High strength metallic composites'' (HSMetComp). Thereby were process as well as materials in the focus of the above mentioned (indirect) examination methods. which were adapted and further developed for these purposes. The results of the experimental as well as theoretical studies could contribute to an increased understanding of the technological process as well as the material behaviour and can by this also used for hints concerning process- and/or material-sided optimizations. Altogether they

  15. Novel approach to high-throughput determination of endocrine disruptors using recycled diatomaceous earth as a green sorbent phase for thin-film solid-phase microextraction combined with 96-well plate system.

    Science.gov (United States)

    Kirschner, Nicolas; Dias, Adriana Neves; Budziak, Dilma; da Silveira, Cristian Berto; Merib, Josias; Carasek, Eduardo

    2017-12-15

    A sustainable approach to TF-SPME is presented using recycled diatomaceous earth, obtained from a beer purification process, as a green sorbent phase for the determination of bisphenol A (BPA), benzophenone (BzP), triclocarban (TCC), 4-methylbenzylidene camphor (4-MBC) and 2-ethylhexyl-p-methoxycinnamate (EHMC) in environmental water samples. TF-SPME was combined with a 96-well plate system allowing for high-throughput analysis due to the simultaneous extraction/desorption up to 96 samples. The proposed sorbent phase exhibited good stability in organic solvents, as well as satisfactory analytical performance. The optimized method consisted of 240 min of extraction at pH 6 with the addition of NaCl (15% w/v). A mixture of MeOH:ACN (50:50 v/v) was used for the desorption the analytes, using a time of 30 min. Limits of detection varied from 1 μg L -1 for BzP and TCC to 8 μg L -1 for the other analytes, and R 2 ranged from 0.9926 for 4-MBC to 0.9988 for BPA. This novel and straightforward approach offers an environmentally-friendly and very promising alternative for routine analysis. . The total sample preparation time per sample was approximately 2.8 min, which is a significant advantage when a large number of analytical run is required. Copyright © 2017 Elsevier B.V. All rights reserved.

  16. Determination of biocides as well as some biocide metabolites from facade run-off waters by solid phase extraction and high performance liquid chromatographic separation and tandem mass spectrometry detection.

    Science.gov (United States)

    Bester, K; Lamani, X

    2010-08-06

    Biocides are used to protect buildings, boats, and other materials from microbial infestations. A huge variety of compounds are being used: isothiazolinones, e.g., to prevent bacterial growth in paints, triazines and phenylureas against algal growth on water exposed materials while carbamates are used against fungal investations. However these biocides can be leached from the respective materials. As these are very effective compounds it is important to know the concentrations of these biocides in the leachates as well as their leaching behaviour to assess their risk to the environment. In this study, a method for the determination of biocides from facade material run-off water by means of high performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS) was developed. Due to the amphiphilic character and the expected varying pH-values in the samples, the extractions as well as the HPLC-method development proved to be demanding. The water samples (leachates) were buffered with a phosphate buffer to pH 7. As some of the biocides are very hydrophilic, different SPE cartridges were tested to identify the SPE material with the highest recovery rates for all compounds. For gaining a good separation, analyte trapping was performed on the HPLC column. Quantification was performed using a mass spectrometer in multi-reaction monitoring with two transitions per compound. The final recovery rates were conducted using a cartridge with a divenylbenzyl polymer sorbent. A combination of methanol and acetonitrile as eluents was used to reach recovery rates in the range of 70-100%. The limit of quantification for the compounds of interest ranged from 0.01 to 0.1 microg/L. Copyright 2010 Elsevier B.V. All rights reserved.

  17. Gas in your water well

    International Nuclear Information System (INIS)

    2011-03-01

    In Alberta, the presence of carbon dioxide, methane or hydrogen sulphide in water wells is common. The aim of this paper is to provide information to private owners of water wells. It is stated in this document that spurting taps or a gurgling noise indicate that there is gas in your water well; you can determine which gas it is by collecting a sample and having it analyzed. In order to address the risks associated with the presence of gas in the water well, the well pit or well pump should be properly vented to avoid any oxygen deficiency in the atmosphere. It is also possible to get rid of the gas by lowering the pump intake. It is also mentioned that the development of coalbed methane in Alberta should not contaminate private wells since regulations aimed at avoiding this have been implemented. This paper provided useful information to help private owners manage the presence of gas in their water wells.

  18. Nationwide rural well water survey

    International Nuclear Information System (INIS)

    Korkka-Niemi, K.; Sipilae, A.; Hatva, T.; Hiisvirta, L.; Lahti, K.; Alfthan, G.

    1993-01-01

    The quality of water in 1 421 drinking-water wells was monitored in a nationwide well water study. Samples were taken once from all wells, and during three seasons from 421 wells. The wells were selected in such a way that me sample would be as representative as possible of the quality of the drinking-water in households' own wells in rural areas. The study comprised general water quality parameters, influence of sampling season, and factors related to the type, the condition and the pollution of the wells. In part of the well waters selenium, radioactivity and pesticides were determined. The effect of plumbing materials on the quality of water was also examined. (33 refs., 148 figs., 71 tabs.)

  19. Radioisotope techniques in oil wells

    International Nuclear Information System (INIS)

    Jain, Prabuddha

    1998-01-01

    Radioisotope techniques are quite useful in oil exploration and exploitation. Nuclear logging offers a way of gathering information on porosity, permeability, fluid saturations, hydrocarbon types and lithology. Some of the interesting applications in well drilling are determining depth of filtrate invasion, detection of lost circulation, drill-bit erosion control; primary cement measurements and well completions such as permanent tubular markers, perforation position marking, detection of channeling behind casing and gravel pack operations. Radioisotopes have been successfully used in optimizing production processes such as production profiling injection profiling, corrosion measurements and well to well tracer tests. (author)

  20. Model wells for nuclear well logging

    International Nuclear Information System (INIS)

    Tittle, C.W.

    1989-01-01

    Considerations needed in the design and construction of model wells for nuclear log calibration are covered, with special attention to neutron porosity logging and total γ-ray logging. Pulsed neutron decay-time and spectral γ-ray logging are discussed briefly. The American Petroleum Institute calibration facility for nuclear logs is a good starting point for similar or expanded facilities. A few of its shortcomings are mentioned; they are minor. The problem of fluid saturation is emphasized. Attention is given to models made of consolidated rock and those containing unconsolidated material such as Ottawa sand. Needed precautions are listed. A similarity method is presented for estimating the porosity index of formations that are not fully saturated. (author)

  1. Employee wellness program evaluation.

    Science.gov (United States)

    2008-12-01

    Well-designed wellness programs can keep healthy employees healthy, support employees with : health risks to improve their health behaviors, and facilitate organizational efforts to achieve : workforce performance goals. : Productivity lost through a...

  2. The wellness syndrome

    DEFF Research Database (Denmark)

    Mik-Meyer, Nanna

    2015-01-01

    Klumme. Wellness er blevet et syndrom, og dets symptomer er angst, selvbebrejdelser og skyldfølelse. Kommentar med udgangspunkt i: Carl Cederström & Andre Spicer, "The Wellness Syndrome" (Polity Books, 2015. 200 p.).......Klumme. Wellness er blevet et syndrom, og dets symptomer er angst, selvbebrejdelser og skyldfølelse. Kommentar med udgangspunkt i: Carl Cederström & Andre Spicer, "The Wellness Syndrome" (Polity Books, 2015. 200 p.)....

  3. Total well dominated trees

    DEFF Research Database (Denmark)

    Finbow, Arthur; Frendrup, Allan; Vestergaard, Preben D.

    cardinality then G is a total well dominated graph. In this paper we study composition and decomposition of total well dominated trees. By a reversible process we prove that any total well dominated tree can both be reduced to and constructed from a family of three small trees....

  4. Staying Well at Work.

    Science.gov (United States)

    Blai, Boris, Jr.

    Employee wellness directly affects business/industry operations and costs. When employees are helped and encouraged to stay well, this people-positive policy results in triple benefits: reduced worker absenteeism, increased employee productivity, and lower company expenditures for health costs. Health care programs at the worksite offer these…

  5. hand- dug well

    African Journals Online (AJOL)

    Misrak

    wells at the vicinity of three major refuse dumpsite taking measurement of depth of the well, diameter, volume of water, distance ... The total coliform bacteria count shows that the water is exposed to serious and complex contaminations, which .... Bacterial plate count was carried out using the pour plate method with nutrient ...

  6. Water Treatment Technology - Wells.

    Science.gov (United States)

    Ross-Harrington, Melinda; Kincaid, G. David

    One of twelve water treatment technology units, this student manual on wells provides instructional materials for five competencies. (The twelve units are designed for a continuing education training course for public water supply operators.) The competencies focus on the following areas: dug, driven, and chilled wells, aquifer types, deep well…

  7. Encyclopedia of well logging

    International Nuclear Information System (INIS)

    Desbrandes, R.

    1985-01-01

    The 16 chapters of this book aim to provide students, trainees and engineers with a manual covering all well-logging measurements ranging from drilling to productions, from oil to minerals going by way of geothermal energy. Each chapter is a summary but a bibliography is given at the end of each chapter. Well-logging during drilling, wireline logging equipment and techniques, petroleum logging, data processing of borehole data, interpretation of well-logging, sampling tools, completion and production logging, logging in relief wells to kill off uncontrolled blowouts, techniques for high temperature geothermal energy, small-scale mining and hydrology, logging with oil-base mud and finally recommended logging programs are all topics covered. There is one chapter on nuclear well-logging which is indexed separately. (UK)

  8. Criteria to determine the depth of the production interval in wells of the Cerro Prieto geothermal field, Mexico; Criterios para determinar la profundidad del intervalo productor en pozos del campo geotermico de Cerro Prieto, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Leon Vivar, Jesus Saul de [Comision Federal de Electricidad, Residencia General de Cerro Prieto, Mexicali, B.C. (Mexico)]. E-mail: jesus.deleon@cfe.gob.mx

    2006-07-15

    Ways to select the depth of the production interval or to complete wells in the Cerro Prieto geothermal field have changed during the development of the field. From 1961 when drilling began to the middle of 2005, a total of 325 wells were drilled. The paper compares the approaches used in the past with those of the last ten years. The Cerro Prieto system has been classified as being of liquid-dominated and high-temperature. Today, after 33 years of commercial exploitation, it has experienced a series of thermal and geochemical fluid changes making it necessary to modify the ways to select the depth of the well production intervals, according to the observed behavior of the reservoir. The new criteria include the thermal approach, the geological approach, the geochemical approach and a comparative approach with neighboring wells. If most of these criteria are interpreted correctly, the success of a well is ensured. [Spanish] Los criterios para seleccionar la profundidad del intervalo productor o la terminacion de los pozos en el campo geotermico de Cerro Prieto han cambiado durante el desarrollo del mismo. De 1961, cuando se perforaron los primeros pozos, hasta mediados del 2005 se han perforado un total de 325 pozos. En el presente articulo se hara una breve revision de cuales han sido los criterios usados en el pasado y los que se han venido empleando en los ultimos diez anos. El yacimiento de Cerro Prieto ha sido clasificado como de liquido dominante, de alta temperatura, pero actualmente, despues de 33 anos de explotacion comercial, ha sufrido una serie de cambios termicos y geoquimicos en sus fluidos, por lo que ha sido necesario modificar los criterios para seleccionar la profundidad del intervalo productor de los pozos de acuerdo al comportamiento observado en el yacimiento. Los criterios actuales se dividen en cuatro: 1. Criterio termico, 2. Criterio geologico, 3. Criterio geoquimico y 4. Criterio comparativo de los pozos vecinos. Cuando la mayoria de estos

  9. Pumping potential wells

    Science.gov (United States)

    Hershkowitz, N.; Forest, C.; Wang, E. Y.; Intrator, T.

    1987-01-01

    Nonmonotonic plasma potential structures are a common feature of many double layers and sheaths. Steady state plasma potential wells separating regions having different plasma potentials are often found in laboratory experiments. In order to exist, such structures all must find a solution to a common problem. Ions created by charge exchange or ionization in the region of the potential well are electrostatically confined and tend to accumulate and fill up the potential well. The increase in positive charge should eliminate the well. Nevertheless, steady state structures are found in which the wells do not fill up. This means that it is important to take into account processes which 'pump' ions from the well. As examples of ion pumping of plasma wells, potential dips in front of a positively biased electro collecting anode in a relatively cold, low density multidipole plasma is considered. Pumping is provided by ion leaks from the edges of the potential dip or by oscillating the applied potential. In the former case the two dimensional character of the problem is shown to be important.

  10. Pumping potential wells

    International Nuclear Information System (INIS)

    Hershkowitz, N.; Forest, C.; Wang, E.Y.; Intrator, T.

    1987-01-01

    Nonmonotonic plasma potential structures are a common feature of many double layers and sheaths. Steady state plasma potential wells separating regions having different plasma potentials are often found in laboratory experiments. In order to exist, all such structures must find a solution to a common problem. Ions created by charge exchange or ionization in the region of the potential well are electrostatically confined and tend to accumulate and fill up the potential well. The increase in positive charge should eliminate the well. Nevertheless, steady state structures are found in which the wells do not fill up. This means that it is important to take into account processes which pump ions from the well. As examples of ion pumping of plasma wells, potential dips in front of a positively biased electron collecting anode in a relatively cold, low density, multidipole plasma are considered. Pumping is provided by ion leaks from the edges of the potential dip or by oscillating the applied potential. In the former case the two-dimensional character of the problem is shown to be important

  11. Pumping potential wells

    International Nuclear Information System (INIS)

    Hershkowitz, N.; Forest, C.; Wang, E.Y.; Intrator, T.

    1987-01-01

    Nonmonotonic plasma potential structures are a common feature of many double layers and sheaths. Steady state plasma potential wells separating regions having different plasma potentials are often found in laboratory experiments. In order to exist, such structures all must find a solution to a common problem. Ions created by charge exchange or ionization in the region of the potential well are electrostatically confined and tend to accumulate and fill up the potential well. The increase in positive charge should eliminate the well, but steady state structures are found in which the wells do not fill up. This means that it is important to take into account processes which 'pump' ions from the well. As examples of ion pumping of plasma wells, potential dips in front of a positively biased electron collecting anode in a relatively cold, low density multidipole plasma are considered. Pumping is provided by ion leaks from the edges of the potential dip or by oscillating the applied potential. In the former case the two dimensional character of the problem is shown to be important. (author)

  12. Dry well cooling device

    International Nuclear Information System (INIS)

    Suzuki, Hiroyuki.

    1997-01-01

    A plurality of blowing ports with introduction units are disposed to a plurality of ducts in a dry well, and a cooling unit comprising a cooler, a blower and an isolating valve is disposed outside of the dry well. Cooling air and the atmosphere in the dry well are mixed to form a cooling gas and blown into the dry well to control the temperature. Since the cooling unit is disposed outside of the dry well, the maintenance of the cooling unit can be performed even during the plant operation. In addition, since dampers opened/closed depending on the temperature of the atmosphere are disposed to the introduction units for controlling the temperature of the cooling gas, the temperature of the atmosphere in the dry well can be set to a predetermined level rapidly. Since an axial flow blower is used as the blower of the cooling unit, it can be contained in a ventilation cylinder. Then, the atmosphere in the dry well flowing in the ventilation cylinder can be prevented from leaking to the outside. (N.H.)

  13. Well performance model

    International Nuclear Information System (INIS)

    Thomas, L.K.; Evans, C.E.; Pierson, R.G.; Scott, S.L.

    1992-01-01

    This paper describes the development and application of a comprehensive oil or gas well performance model. The model contains six distinct sections: stimulation design, tubing and/or casing flow, reservoir and near-wellbore calculations, production forecasting, wellbore heat transmission, and economics. These calculations may be performed separately or in an integrated fashion with data and results shared among the different sections. The model analysis allows evaluation of all aspects of well completion design, including the effects on future production and overall well economics

  14. Agricultural Drainage Well Intakes

    Data.gov (United States)

    Iowa State University GIS Support and Research Facility — Locations of surface intakes for registered agriculture drainage wells according to the database maintained by IDALS. Surface intakes were located from their...

  15. Assessment of hydrogeologic terrains, well-construction characteristics, groundwater hydraulics, and water-quality and microbial data for determination of surface-water-influenced groundwater supplies in West Virginia

    Science.gov (United States)

    Kozar, Mark D.; Paybins, Katherine S.

    2016-08-30

    In January 2014, a storage tank leaked, spilling a large quantity of 4-methylcyclohexane methanol into the Elk River in West Virginia and contaminating the water supply for more than 300,000 people. In response, the West Virginia Legislature passed Senate Bill 373, which requires the West Virginia Department of Health and Human Resources (WVDHHR) to assess the susceptibility and vulnerability of public surface-water-influenced groundwater supply sources (SWIGS) and surface-water intakes statewide. In response to this mandate for reassessing SWIGS statewide, the U.S. Geological Survey (USGS), in cooperation with the WVDHHR, Bureau of Public Health, Office of Environmental Health Services, compiled available data and summarized the results of previous groundwater studies to provide the WVDHHR with data that could be used as part of the process for assessing and determining SWIGS.

  16. Properties of samples containing natural gas hydrate from the JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well, determined using Gas Hydrate And Sediment Test Laboratory Instrument (GHASTLI)

    Science.gov (United States)

    Winters, W.J.

    1999-01-01

    As part of an ongoing laboratory study, preliminary acoustic, strength, and hydraulic conductivity results are presented from a suite of tests conducted on four natural-gas-hydrate-containing samples from the Mackenzie Delta JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well. The gas hydrate samples were preserved in pressure vessels during transport from the Northwest Territories to Woods Hole, Massachusetts, where multistep tests were performed using GHASTLI (Gas Hydrate And Sediment Test Laboratory Instrument), which recreates pressure and temperature conditions that are stable for gas hydrate. Properties and changes in sediment behaviour were measured before, during, and after controlled gas hydrate dissociation. Significant amounts of gas hydrate occupied the sample pores and substantially increased acoustic velocity and shear strength.

  17. Firemní wellness

    OpenAIRE

    Ondrušová, Denisa

    2012-01-01

    Předmětem bakalářské práce je návrh firemního wellness – „Hubnu v dubnu“ pro zvolenou firmu. Tato práce obsahuje všechny potřebné informace, které jsou nutné k vytvoření konkrétní nabídky firemního wellness. Finální návrh bude připraven pro zařazení do portfolia CESA VUT v Brně. The topic of this bachelor thesis is a draft of a company wellness program - "Hubnu v dubnu" for a selected company. This thesis contains all the necessary information required to create specific offer for company ...

  18. Gratitude and Well Being

    Science.gov (United States)

    Sansone, Lori A.

    2010-01-01

    The word “gratitude” has a number of different meanings, depending on the context. However, a practical clinical definition is as follows—gratitude is the appreciation of what is valuable and meaningful to oneself; it is a general state of thankfulness and/or appreciation. The majority of empirical studies indicate that there is an association between gratitude and a sense of overall well being. However, there are several studies that indicate potential nuances in the relationship between gratitude and well being as well as studies with negative findings. In terms of assessing gratitude, numerous assessment measures are available. From a clinical perspective, there are suggested therapeutic exercises and techniques to enhance gratitude, and they appear relatively simple and easy to integrate into psychotherapy practice. However, the therapeutic efficacy of these techniques remains largely unknown. Only future research will clarify the many questions around assessment, potential benefits, and enhancement of gratitude. PMID:21191529

  19. Well swab collar

    Energy Technology Data Exchange (ETDEWEB)

    1969-04-09

    A well swab collar which can be hoisted to bring well fluids upward through a pipe string is described. An elastic swab is used to swab a pipe having a predetermined diameter. The swab consists of a circular shaped elastomer body having an outer diameter a little smaller than the inner diameter of the pipe. The body is divided into multiple swab elements by ring-shaped grooves in the body. The swab element has truncated conical surfaces directed radially at an outward angle, then downward and consequently at an angle inward and then downward. (19 claims)

  20. Is supergravity well-posed?

    International Nuclear Information System (INIS)

    Isenberg, J.; Bao, D.; Yasskin, P.B.

    1983-01-01

    One rather fundamental question concerning supergravity remains unresolved: Is supergravity a well-posed field theory? That is, does a set of certain (Cauchy) data specified on some initial spacelike surface determine a unique, causally propagating spacetime solution of the supergravity field equations (at least in some finite neighborhood of the initial surface)? In this paper, the authors give a very brief report on work directed towards answering this question. (Auth.)

  1. Development and validation of a rapid HPLC method for the determination of cefdinir in beagle dog plasma integrated with an automatic on-line solid-phase extraction following protein precipitation in the 96-well plate format.

    Science.gov (United States)

    Li, Ji; Wang, Li; Chen, Zhao; Xie, Rui; Li, You; Hang, Taijun; Fan, Guorong

    2012-05-01

    The high-performance liquid chromatography (HPLC) coupled with on-line solid phase extraction (SPE) and ultraviolet (UV) detection was developed for determining cefdinir in beagle dog plasma. After simple pretreatment for plasma with 6% perchloric acid, a volume of 100 μL upper layer of the plasma sample was injected into the self-made on-line SPE column. The analytes were retained on the trap column (Lichrospher C(18), 4.6 mm × 37 mm, 25 μm), and the biological matrix was washed out with the solvent (20mM KH(2)PO(4) adjusted pH 3.0) at flow rate of 2 mL/min. By rotation of the switching valve, the target analytes could be eluted from trap column to analytical column in the back-flush mode by the mobile phase (methanol-acetonitrile-20mM KH(2)PO(4) adjusted pH 3.0, 11.25:6.75:82, v/v/v) at flow rate of 1.5 mL/min, and then separated on the analytical column (Ultimate XB-C(18), 4.6 mm × 50 mm, 5 μm). The complete cycle of the on-line SPE preconcentration, purification and HPLC separation of the analytes was 4 min. The UV detection was performed at 286 nm. The calibration curves showed excellent linear relationship (R(2)=0.9995) over the concentration range of 0.05-50 μg/mL. The optimized method showed good performance in terms of specificity, linearity, detection and quantification limits, precision and accuracy. This method was successfully applied to quantify cefdinir in beagle dog plasma to support the pre-clinical pharmacokinetic trial. Copyright © 2012. Published by Elsevier B.V.

  2. Radiometric well logging instruments

    International Nuclear Information System (INIS)

    Davydov, A.V.

    1975-01-01

    The technical properties of well instruments for radioactive logging used in the radiometric logging complexes PKS-1000-1 (''Sond-1'') and PRKS-2 (''Vitok-2'') are described. The main features of the electric circuit of the measuring channels are given

  3. Why Does Well

    Science.gov (United States)

    Sartorius, Tara Cady

    2010-01-01

    There is something disappointing about life. It is messy and out of control. It seems the more one tries to put life in order, the more ordering there is to do. The more one seeks explanations, the more confusing things become. Life's an impossible task. Maybe one should just give up. Or, then again, one might as well keep trying. It's this…

  4. Alive and Well.

    Science.gov (United States)

    Pion, Ronald J.; DelliQuadri, Lyn

    1979-01-01

    Suggests an approach to health education that addresses the innate human drive for physical, mental, and spiritual well-being and to the inherent potential to learn behaviors that facilitate it. This approach involves parents and teachers, because children's behaviors are deeply influenced by them. (Author/BEF)

  5. Well logging, atom and geology

    International Nuclear Information System (INIS)

    Serra, O.

    1994-01-01

    Well logging techniques exploit interactions of gamma photons and neutrons with atoms. Interactions of neutrons of different energies with atoms allow the detection and evaluation of the weight percentage of several elements composing the rocks (C, O, Si, Ca, Fe, S); spectrometry of gamma rays produced by thermal neutron absorption allows for the weight percentage determination of Si, Ca, Fe, S, Cl, H, Ti and Gd, etc. High resolution detectors (germanium doped by Li, at liquid nitrogen temperature) allow the recognition of more elements. Other techniques involving neutrons consist in determining the population in epithermal neutrons at a certain distance of the neutron source (measurement of the hydrogen index). By analyzing the intensity of the gamma flux produced by Compton scattering, the electronic and bulk densities of the rocks are measured. All these data lead to the detection and evaluation of ore deposits (uranium and potassium) and coal, and determination of the lithology, the main minerals composing the rocks, petrophysical properties... 1 fig

  6. Sex determination

    Indian Academy of Sciences (India)

    The sex-determining system differs considerably among organisms. Even among insect species, the genetic system for sex-determination is highly diversified. In Drosophila melanogaster, somatic sexual differentiation is regulated by a well characterized genetic hierarchy X : A > Sxl > tra/tra2 > dsx and fru. This cascade ...

  7. Thermally assisted OSL application for equivalent dose estimation; comparison of multiple equivalent dose values as well as saturation levels determined by luminescence and ESR techniques for a sedimentary sample collected from a fault gouge

    Energy Technology Data Exchange (ETDEWEB)

    Şahiner, Eren, E-mail: sahiner@ankara.edu.tr; Meriç, Niyazi, E-mail: meric@ankara.edu.tr; Polymeris, George S., E-mail: gspolymeris@ankara.edu.tr

    2017-02-01

    Highlights: • Multiple equivalent dose estimations were carried out. • Additive ESR and regenerative luminescence were applied. • Preliminary SAR results employing TA-OSL signal were discussed. • Saturation levels of ESR and luminescence were investigated. • IRSL{sub 175} and SAR TA-OSL stand as very promising for large doses. - Abstract: Equivalent dose estimation (D{sub e}) constitutes the most important part of either trap-charge dating techniques or dosimetry applications. In the present work, multiple, independent equivalent dose estimation approaches were adopted, using both luminescence and ESR techniques; two different minerals were studied, namely quartz as well as feldspathic polymineral samples. The work is divided into three independent parts, depending on the type of signal employed. Firstly, different D{sub e} estimation approaches were carried out on both polymineral and contaminated quartz, using single aliquot regenerative dose protocols employing conventional OSL and IRSL signals, acquired at different temperatures. Secondly, ESR equivalent dose estimations using the additive dose procedure both at room temperature and at 90 K were discussed. Lastly, for the first time in the literature, a single aliquot regenerative protocol employing a thermally assisted OSL signal originating from Very Deep Traps was applied for natural minerals. Rejection criteria such as recycling and recovery ratios are also presented. The SAR protocol, whenever applied, provided with compatible D{sub e} estimations with great accuracy, independent on either the type of mineral or the stimulation temperature. Low temperature ESR signals resulting from Al and Ti centers indicate very large D{sub e} values due to bleaching in-ability, associated with large uncertainty values. Additionally, dose saturation of different approaches was investigated. For the signal arising from Very Deep Traps in quartz saturation is extended almost by one order of magnitude. It is

  8. Geothermal Well Site Restoration and Plug and Abandonment of Wells

    Energy Technology Data Exchange (ETDEWEB)

    Rinehart, Ben N.

    1994-08-01

    A report is presented on the final phase of an energy research program conducted by the U.S. Department of Energy (DOE) involving two geothermal well sites in the State of Louisiana-the Gladys McCall site and the Willis Hulin site. The research program was intended to improve geothermal technology and to determine the efficacy of producing electricity commercially from geopressured resource sites. The final phase of the program consisted of plug and abandonment (P&A) of the wells and restoration of the well sites. Restoration involved (a) initial soil and water sampling and analysis; (b) removal and disposal of well pads, concrete, utility poles, and trash; (c) plugging of monitor and freshwater wells; and (d) site leveling and general cleanup. Restoration of the McCall site required removal of naturally occurring radioactive material (NORM), which was costly and time-consuming. Exhibits are included that provide copies of work permits and authorizations, P&A reports and procedures, daily workover and current conditions report, and cost and salvage reports. Site locations, grid maps, and photographs are provided.

  9. Fracturing formations in wells

    Energy Technology Data Exchange (ETDEWEB)

    Daroza, R A

    1964-05-15

    This well stimulation method comprises introducing through the well bore a low-penetrating, dilatant fluid, and subjecting the fluid to sufficient pressure to produce fractures in the formation. The fluid is permitted to remain in contact with the formation so as to become diluted by the formation fluids, and thereby lose its properties of dilatancy. Also, a penetrating fluid, containing a propping agent suspended therein, in introduced into contact with the fractures at a pressure substantially reduced with respect to that pressure which would have been required, prior to the fracturing operation performed using the low-penetrating dilatant fluid. The propping agent is deposited within the fractures, and thereafter, fluid production is resumed from the fractured formation. (2 claims)

  10. Sealing wells with gel

    Energy Technology Data Exchange (ETDEWEB)

    Lopez, E C

    1967-10-01

    A new system is being used in Mexico to temporarily plug producing wells. The temporary seal is a gel with a catalyst. The use of this temporary plug allows gas-lift wells to be taken off production in order to carry out emergency repairs. The gel solidifies by the action of the catalyst to a high temperature (70 - 150/sup 0/C). By locating the bottom of the tubing at the top of the production interval, the gel material will go into the permeable formation, and immediately set. When the gel has solidified, it seals off the horizon that must not be stimulated, and leaves the others exposed to the acid action. When the treatment is finished, the gel, by action of the catalyst, is liquefied and removed from the formation, being produced with the oil.

  11. Oil well spill trough

    International Nuclear Information System (INIS)

    Wigington, J.R. Sr.

    1992-01-01

    This patent describes a process involving an oil well and rig having a casing, a platform on the rig extending around the casing. This patent describes improvement in pulling the tubing from the casing; disconnecting joints of tubing thereby; and spilling liquids from the casing, catching spilled liquids from the casing in a basin below the platform, draining the basin substantially simultaneously; connecting the drain hole to a tank, and reducing the pressure in the tank to less than atmospheric pressure. This paper also describes an oil well and rig having a casing; the rig having a platform extending around the casing. This patent describes improvement in a basin surrounding the casing and connected thereto, the basin below the platform, a drain connection in the lower part of the basin, a conduit connected to the drain, and means for applying a suction to the conduit

  12. Wellness interventions for anesthesiologists.

    Science.gov (United States)

    Saadat, Haleh; Kain, Zeev N

    2018-06-01

    The review examines the different preventive measures that have been found to be useful to abolish or decrease the negative effects of burnout and increase resilience in anesthesiologists. Studies in anesthesiology cite autonomy, control of the work environment, professional relationships, leadership, and organizational justice as the most important factors in job satisfaction. Factors such as difficulty in balancing personal and professional life, poor attention to wellness, work alcoholism, and genetic factors increase an individual's susceptibility to burnout. Exposure to chronic or repeated stress instigates a spectrum of autonomic, endocrine, immunologic, and behavioral responses that activate the sympathetic-adrenal-medullary and hypothalamic-pituitary-adrenal axis. Investigating the difference in psychobiologic reactivity, as well as defining the psychological symptoms that are characteristic to individuals vulnerable to stress-induced illness, would enable scientists to better look into the modalities to eradicate the negative effects. Recent studies have shown that a combination of individual and structural changes in institutions can increase resilience in physicians. Burnout is a pathological syndrome that is triggered by constant levels of high stress. A combination of individual efforts as well as structural interventions can help to increase wellbeing in physicians.

  13. Quantum well lasers

    CERN Document Server

    Zory, Jr, Peter S; Kelley, Paul

    1993-01-01

    This book provides the information necessary for the reader to achieve a thorough understanding of all aspects of QW lasers - from the basic mechanism of optical gain, through the current technolgoical state of the art, to the future technologies of quantum wires and quantum dots. In view of the growing importance of QW lasers, this book should be read by all those with an active interest in laser science and technology, from the advanced student to the experienced laser scientist.* The first comprehensive book-length treatment of quantum well lasers* Provides a detailed treatment

  14. Drilling and well technology

    Energy Technology Data Exchange (ETDEWEB)

    Milheim, K. [Mining University Leoben Institute for Drilling Technology, (Austria)

    1996-12-31

    Over a billion dollars a year is lost by exploration and production companies drilling wells because of the lack of learn curve management (LMC) practices. This paper presents the importance of the LMC concept, what it is, why LMC has not yet been recognized as a major initiative for improving drilling cost performance. The paper discusses the different types of planning, problems with implementation of plans, the use and misuse of drilling results and data bases, and the lack of post analysis practices. The major point of the paper is to show the massive savings that can be achieved by valuing LMC, learning LMC and successfully implementing LMC. . 2 refs., 5 figs.

  15. Modeling Quantum Well Lasers

    Directory of Open Access Journals (Sweden)

    Dan Alexandru Anghel

    2012-01-01

    Full Text Available In semiconductor laser modeling, a good mathematical model gives near-reality results. Three methods of modeling solutions from the rate equations are presented and analyzed. A method based on the rate equations modeled in Simulink to describe quantum well lasers was presented. For different signal types like step function, saw tooth and sinus used as input, a good response of the used equations is obtained. Circuit model resulting from one of the rate equations models is presented and simulated in SPICE. Results show a good modeling behavior. Numerical simulation in MathCad gives satisfactory results for the study of the transitory and dynamic operation at small level of the injection current. The obtained numerical results show the specific limits of each model, according to theoretical analysis. Based on these results, software can be built that integrates circuit simulation and other modeling methods for quantum well lasers to have a tool that model and analysis these devices from all points of view.

  16. Determinants of the VDU operator's well-being

    NARCIS (Netherlands)

    Pot, F.D.; Padmos, P.; Brouwers, A.A.F.

    1987-01-01

    Patterns of complaints of VDU operators have been studied in relation to work organization, workplace ergonomics and operators' eye quality. Host subjects worked on data entry and word processing. The percentage of working day with VDU (VDUTIME) varied widely among subjects. The relations found were

  17. Workplace Wellness Champions: Lessons Learned and Implications for Future Programming

    Directory of Open Access Journals (Sweden)

    Megan Amaya

    2017-05-01

    Conclusions: The Wellness Innovator program is an important strategy in encouraging faculty and staff to participate in wellness activities and services. More research is needed to determine the impact of wellness champion teams on health and wellness outcomes.

  18. Flow tests of the Willis Hulin well

    Energy Technology Data Exchange (ETDEWEB)

    Randolph, P.L.; Hayden, C.G.; Rogers, L.A.

    1992-02-01

    The Hulin well was tested between 20,100 and 20,700 feet down in layers of brine-saturated clean sand with occasional intervening layers of shale. The characteristics of the brine and gas were determined in this interval and an initial determination of the reservoir properties were made.

  19. Reasons for using workplace wellness services

    DEFF Research Database (Denmark)

    Persson, Roger; Cleal, Bryan; Jakobsen, Mette Øllgaard

    2018-01-01

    Aims: While workplace wellness services are proactively established to improve well-being and reduce sickness absence, knowledge of reasons for using these services remains sparse. This study investigates which factors determine use of an in-house wellness service at a large organization (the Dan...... for in terms of both positive and negative barriers. Use of the service for purposes of primary prevention and health promotion was, relatively speaking, lagging behind....

  20. Reasons for using workplace wellness services

    DEFF Research Database (Denmark)

    Persson, Roger; Cleal, Bryan; Jakobsen, Mette Øllgaard

    2017-01-01

    AIMS: While workplace wellness services are proactively established to improve well-being and reduce sickness absence, knowledge of reasons for using these services remains sparse. This study investigates which factors determine use of an in-house wellness service at a large organization (the Dan...... for in terms of both positive and negative barriers. Use of the service for purposes of primary prevention and health promotion was, relatively speaking, lagging behind....

  1. Hanford well custodians. Revision 1

    International Nuclear Information System (INIS)

    Schatz, A.L.; Underwood, D.J.

    1995-01-01

    The Hanford Site Groundwater Protection Management Program recognized the need to integrate monitoring well activities in a centralized manner. A key factor to Hanford Site well integration was the need to clearly identify a responsible party for each of the wells. WHC was asked to identify all wells on site, the program(s) using each well, and the program ultimately responsible for the well. This report lists the custodian and user(s) for each Hanford well and supplies a comprehensive list of all decommissioned and orphaned wells on the Hanford Site. This is the first update to the original report released in December 1993

  2. Silicon Germanium Quantum Well Thermoelectrics

    Science.gov (United States)

    Davidson, Anthony Lee, III

    Today's growing energy demands require new technologies to provide high efficiency clean energy. Thermoelectrics that convert heat to electrical energy directly can provide a method for the automobile industry to recover waste heat to power vehicle electronics, hence improving fuel economy. If large enough efficiencies can be obtained then the internal combustion engine could even be replaced. Exhaust temperature for automotive application range from 400 to 800 K. In this temperature range the current state of the art materials are bulk Si1-xGex alloys. By alternating layers of Si and Si1-xGex alloy device performance may be enhanced through quantum well effects and variations in material thermal properties. In this study, superlattices designed for in-plane operation with varying period and crystallinity are examined to determine the effect on electrical and thermal properties. In-plane electrical resistivity of these materials was found to be below the bulk material at a similar doping at room temperature, confirming the role of quantum wells in electron transport. As period is reduced in the structures boundary scattering limits electron propagation leading to increased resistivity. The Seebeck coefficient measured at room temperature is higher than the bulk material, additionally lending proof to the effects of quantum wells. When examining cross-plane operation the low doping in the Si layers of the device produce high resistivity resulting from boundary scattering. Thermal conductivity was measured from 77 K up to 674 K and shows little variation due to periodicity and temperature, however an order of magnitude reduction over bulk Si1-xGex is shown in all samples. A model is developed that suggests a combination of phonon dispersion effects and strong boundary scattering. Further study of the phonon dispersion effects was achieved through the examination of the heat capacity by combining thermal diffusivity with thermal conductivity. All superlattices show a

  3. Nevada test site water-supply wells

    International Nuclear Information System (INIS)

    Gillespie, D.; Donithan, D.; Seaber, P.

    1996-05-01

    A total of 15 water-supply wells are currently being used at the Nevada Test Site (NTS). The purpose of this report is to bring together the information gleaned from investigations of these water-supply wells. This report should serve as a reference on well construction and completion, static water levels, lithologic and hydrologic characteristics of aquifers penetrated, and general water quality of water-supply wells at the NTS. Possible sources for contamination of the water-supply wells are also evaluated. Existing wells and underground nuclear tests conducted near (within 25 meters (m)) or below the water table within 2 kilometers (km) of a water-supply were located and their hydrogeologic relationship to the water-supply well determined

  4. Characterization Well R-22 Geochemistry Report

    International Nuclear Information System (INIS)

    Patrick Longmire

    2002-01-01

    This report provides analytical results for groundwater collected during four characterization-sampling rounds conducted at well R-22 from March 2001 through March 2002. Characterization well R-22 was sampled from March 6 through 13, 2001; June 19 through 26, 2001; November 30 through December 10, 2001; and February 27 through March 7, 2002. The goal of the characterization efforts was to assess the hydrochemistry and to determine whether or not contaminants are present in the regional aquifer in the vicinity of the well. A geochemical evaluation of the analytical results for the well is also presented in this report

  5. Determination of Rn{sup 222} in samples of well water and domicile of the cities of Chihuahua and Aldama, Mexico; Determinacion de Rn{sup 222} en muestras de agua de pozos y domicilio de las ciudades de Chihuahua y Aldama, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Villalba, L.; Colmenero S, L.; Montero C, M.E. [Centro de Investigacion en Materiales Avanzados (CIMAV), Av. Miguel de Cervantes Saavedra 120, 31109 Chihuahua (Mexico)]. e-mail: lourdes.villalba@cimav. edu. mx

    2004-07-01

    The study of the content of dissolved Rn{sup 222} is presented in underground water and of domicile of the cities of Chihuahua and Aldama of the State of Chihuahua. The existence of the Rn{sup 222} in the underground waters comes from its constant production in the rocks of the terrestrial bark. It has been determined that the radon is a noble gas of more solubility in the water, this solubility induces high concentrations in underground water, as well as bigger risk to the health in the human body once ingested or inhaled. Of the 32 wells studied in the cities of Chihuahua and Aldama, the content of dissolved Rn{sup 222} in the water of 22 of them is bigger than 11 Bq/l and of 73 studied samples of water of domiciles 47 show bigger values that 11 Bq/l. These radon contents are attributable to the uraniferous rocks present in the aquifers. (Author)

  6. Horizontal wells in subsurface remediation

    International Nuclear Information System (INIS)

    Losonsky, G.; Beljin, M.S.

    1992-01-01

    This paper reports on horizontal wells which offer an effective alternative to vertical wells in various environmental remediation technologies. Hydrogeological advantages of horizontal wells over vertical wells include a larger zone of influence, greater screen length, higher specific capacity and lower groundwater screen entrance velocity. Because of these advantages, horizontal wells can reduce treatment time and costs of groundwater recovery (pump-and-treat), in situ groundwater aeration (sparging) and soil gas extraction (vacuum extraction). Horizontal wells are also more effective than vertical wells in landfill leachate collection (under-drains), bioremediation, and horizontal grout injection

  7. Well data summary sheets. Vol. 33: North sea wells

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-31

    This 33rd volume of the `Well Data Summary sheets` includes data from seven recently released offshore wells from the North Sea. The wells Baron-2, S.E. Adda-1 and Skjold Flank-1 were presented in our `Well Data Summary Sheets, special volume`, published May 1, 1997. In volume 33, the wells Baron-2 and Skjold Flank-1 are updated with respect to information on sidewall cores. Information regarding all released well data, included in our well data summary sheets, are available on GEUS homepage: http://www.geus.dk/ or the departments homepage: http://www.geus.dk/departments/geol-info-data-centre/geoldata.htm/. A complete index of releases wells in volumes 17-33 is included. (au)

  8. Resonant Tunnelling in Barrier-in-Well and Well-in-Well Structures

    International Nuclear Information System (INIS)

    Jiang-Hong, Yao; Zhang-Yan; Wei-Wu, Li; Yong-Chun, Shu; Zhan-Guo, Wang; Jing-Jun, Xu; Guo-Zhi, Jia

    2008-01-01

    A Schrödinger equation is solved numerically for a barrier in a quantum well and a quantum well in another well structure by the transfer matrix technique. Effect of structure parameters on the transmission probabilities is investigated in detail. The results suggest that symmetry plays an important role in the coupling effect between the quantum wells. The relationship between the width of the inner well and the resonant energy levels in well-in-well structures is also studied. It is found that the ground state energy and the second resonant energy decrease with increasing width of the inner well, while the first resonant energy remains constant

  9. EcoWellness: The Missing Factor in Holistic Wellness Models

    Science.gov (United States)

    Reese, Ryan F.; Myers, Jane E.

    2012-01-01

    A growing body of multidisciplinary literature has delineated the benefits that natural environments have on physical and mental health. Current wellness models in counseling do not specifically address the impact of nature on wellness or how the natural world can be integrated into counseling. The concept of EcoWellness is presented as the…

  10. Nuclear well logging in hydrology

    International Nuclear Information System (INIS)

    1971-01-01

    The optimum development of regional and local groundwater resources requires a quantitative evaluation of its aquifers and aquicludes, and of the physical and chemical properties relevant to the recharge to and withdrawal of water from them. If an understanding of the groundwater regime is to be obtained, geological observations at outcrop must be augmented by subsurface measurements of the strata and the waters they contain. Measurements of many hydrological and geological parameters can be made in situ by nuclear geophysical well-logging methods. Very simply, well logging consists of lowering a measuring probe into a well and making a continuous record of the variations of a particular parameter with depth. In most circumstances, repetition of the measurements under differing hydrodynamic conditions results in a better definition of the flow regime in the aquifer. Nuclear well-logging techniques have for some years been capable of solving a number of the sub-surface measurement problems faced by hydrogeologists. However, the present usage of these methods varies from country to country and the literature concerning applications is scattered in the professional journals of several disciplines. The objective of this report is to include in a single reference volume descriptions of the physical principles of nuclear logging methods, their applications to hydrogeological problems and their limitations on a level suitable for the practising hydrologists with a limited knowledge of nuclear physics. The Working Group responsible for compiling the report recommended that it should cover a broad spectrum of hydrogeological investigations and problems. For example, it saw no valid reason to distinguish for the purposes of the report between well-logging applications for water-supply purposes and for water-flooding studies in the petroleum industry. Neutron measurements made for soil-moisture determinations in the unsaturated zone have been specifically omitted, however, as

  11. Creating Wellness in Your Schools.

    Science.gov (United States)

    Tager, Mark J.

    1983-01-01

    Wellness programs emphasize positive motivation and usually include health awareness campaigns, behavior change programs, and cost containment strategies. Guides are offered for beginning wellness programs in school districts. (MLF)

  12. Recommended well drilling and testing program

    International Nuclear Information System (INIS)

    Long, J.; Wilson, C.

    1978-07-01

    A well drilling and testing program is recommended by Lawrence Berkeley Laboratory to identify the hydrology of deep basalts in the Pasco Basin. The ultimate objective of this program is to assist in determining the feasibility of locating a nuclear waste repository on the Hanford Reservation. The recommended program has been staged for maximum effectiveness. In the first stage, six wells have been identified for drilling and testing which, when coupled with existing wells, will provide sufficient data for a preliminary overview of basin hydrology and a preliminary determination of the hydrologic suitability of the deep basalt for a repository site. The rate at which the first stage wells are drilled and tested will depend upon the date at which a preliminary determination of site suitability is required. It was assumed that a preliminary determination of suitability would be required in 1980, in which case all six first stage wells would be drilled in FY 1979. If the results of the first stage analysis are favorable for repository siting, tentative repository sites can be identified and a second stage hydrology program can be implemented to provide the necessary details of the flow system. To accomplish this stage, a number of deep wells would be required at locations both inside and outside the basin, with specific sites to be identified as the work progresses to obtain maximum utility of existing data. A program is recommended for testing in each new well and for completion of testing in each existing well. Recommended tests include borehole geophysics, pressure and permeability testing, geochemical sampling, tracer testing, hydrofracturing and borehole fracture logging. The entire data collection program is oriented toward providing the information required to establish and verify an accurate numerical model of the Pasco Basin

  13. Ideas for Improving Retirement Wellness.

    Science.gov (United States)

    Rappaport, Anna M

    Employers can and should take steps to support retirement and financial wellness. This article provides a framework for retirement wellness informed by research conducted or supported by the Society of Actuaries. Research insights about Americans' finances, planning, decisions, money management, debt, retiree income shocks and other areas point to ways employers can provide retirement wellness support as a vital part of an overall benefit program. The author suggests several key considerations employers should pay attention to in order to improve retirement wellness.

  14. Insomnia and Well-Being

    Science.gov (United States)

    Hamilton, Nancy A.; Gallagher, Matthew W.; Preacher, Kristopher J.; Stevens, Natalie; Nelson, Christy A.; Karlson, Cynthia; McCurdy, Danyale

    2007-01-01

    Most Americans have occasional problems with insomnia. The relationship of insomnia to illness is well known. However, insomnia may also relate to lower levels of well-being. Although there are various definitions of well-being, one of the most clearly articulated and comprehensive models identifies 2 overarching constructs, psychological…

  15. Unstable well behaviour in gas well liquid loading

    NARCIS (Netherlands)

    Belfroid, S.P.C.; Wijhe, A. van

    2017-01-01

    Liquid loading is the mechanism that is associated with increased liquid hold-up and liquid back flow at lower gas flow rates in gas production wells. In laboratory, most liquid loading experiments are performed at fixed gas and liquid rates (mass flow controlled). In the field, the well behavior is

  16. Wellness for Older Workers and Retirees. WBGH Worksite Wellness Series.

    Science.gov (United States)

    Levin, Robert C.

    Company-sponsored wellness programs are particularly important for older employees inasmuch as they are at greater risk of disease and disability than are their younger counterparts and their health care and health insurance costs are generally higher. As the cost of retirement benefits rises, wellness programs for retirees are becoming…

  17. Existential Well-Being Spirituality or Well-Being?

    NARCIS (Netherlands)

    Visser, Anja; Garssen, Bert; Vingerhoets, Ad J. J. M.

    Measures of spirituality often contain the dimension existential well-being (EWB). However, EWB has been found to overlap with emotional and psychological well-being. Using the Spiritual Attitude and Involvement List (SAIL), we have further investigated the overlap between aspects of spirituality

  18. Equality of Opportunity for Well-Being

    DEFF Research Database (Denmark)

    Mahler, Daniel Gerszon; Ramos, Xavier

    2017-01-01

    A growing literature has tried to measure the extent to which individuals have equal opportunities to acquire income. At the same time, policy makers have doubled down on efforts to go beyond income when measuring well- being. We attempt to bridge these two areas by measuring the extent to which...... individuals have equal opportunities to achieve a high level of well-being. We use the German Socio-Economic Panel to measure well-being in four different ways including incomes. This makes it possible to determine if the way well-being is measured matters for identifying who the opportunity......-deprived are and for tracking inequality of opportunity over time. We find that, regardless of how well-being is measured, the same people are opportunity-deprived and equality of opportunity has improved over the past 20 years. This suggests that going beyond income has little relevance if the objective is to provide equal...

  19. Calibration of well-type ionization chambers

    International Nuclear Information System (INIS)

    Alves, C.F.E.; Leite, S.P.; Pires, E.J.; Magalhaes, L.A.G.; David, M.G.; Almeida, C.E. de

    2015-01-01

    This paper presents the methodology developed by the Laboratorio de Ciencias Radiologicas and presently in use for determining of the calibration coefficient for well-type chambers used in the dosimetry of 192 Ir high dose rate sources. Uncertainty analysis involving the calibration procedure are discussed. (author)

  20. Tool for treating subterranean wells

    International Nuclear Information System (INIS)

    Muller, L.; Randermann, E.

    1991-01-01

    This paper describes a system for treating subterranean wells. It comprises: elongated treatment tool having inflatable packers, a support tube connected to one end of the tool operable to lower tool from a well head into a well and to supply liquid to tool, the tool providing valve means operable in response changes in tension ins aid tube and without rotating the tube sequentially: (a) inflate the packers to isolate one portion of the from the remaining portions thereof and to lock the against movement along the well; (b) inject treatment fluid supplied to the tool through support tube into the one portion of the well and (c) deflate the packers permitting further movement of tool along the well

  1. Financial Well-being in Active Ageing.

    Science.gov (United States)

    Rajola, Federico; Frigerio, Chiara; Parrichi, Monica

    2014-01-01

    In developed countries, economic and financial well-being is playing a crucial positive role in ageing and inclusion processes. Due to the complexity and pervasiveness of financial economy in the real life, more and more social as well as individual well-being are perceived as influenced by financial conditions. On the other hand, the demographic circumstances drive scholars as well as politicians to reflect on ageing dynamics. Bridging the two domains, the following research focuses on the role of the financial well-being as a mediating role of general well-being in elder people. The assumption is that elderly people have specific financial needs that sometimes are not covered by financial providers' offers. The motivation is mainly on the role of information asymmetries between elder consumers and financial institutions. On the dynamics of these asymmetries, the research will specifically investigate the role of financial literacy, as the ability of comprehension of elder people of their needs and of financial information. The applicative implication of this research work consists in finding the determinants of financial well-being for elders and the definition of their specific financial competencies, in order to 1) identify educational and regulatory guidelines for policy makers in charge of creating financial market transparency conditions, and to 2) support design of organizational mechanisms as well as financial product/services for this specific target of client. The following chapter presents preliminary explorative results of a survey delivered on 200 elder individuals (65-80 yrs.) leaving in Milan. Findings show that active elders consider the ability of managing personal wealth as one of the core determinant of well-being, although the economic and financial literacy is limited. Furthermore, the chapter proposes a research agenda for scholars interested in exploring the relationship between financial well-being and ageing.

  2. Preserving Employee Privacy in Wellness.

    Science.gov (United States)

    Terry, Paul E

    2017-07-01

    The proposed "Preserving Employee Wellness Programs Act" states that the collection of information about the manifested disease or disorder of a family member shall not be considered an unlawful acquisition of genetic information. The bill recognizes employee privacy protections that are already in place and includes specific language relating to nondiscrimination based on illness. Why did legislation expressly intending to "preserve wellness programs" generate such antipathy about wellness among journalists? This article argues that those who are committed to preserving employee wellness must be equally committed to preserving employee privacy. Related to this, we should better parse between discussions and rules about commonplace health screenings versus much less common genetic testing.

  3. High resolution gamma spectroscopy well logging system

    International Nuclear Information System (INIS)

    Giles, J.R.; Dooley, K.J.

    1997-01-01

    A Gamma Spectroscopy Logging System (GSLS) has been developed to study sub-surface radionuclide contamination. The absolute counting efficiencies of the GSLS detectors were determined using cylindrical reference sources. More complex borehole geometries were modeled using commercially available shielding software and correction factors were developed based on relative gamma-ray fluence rates. Examination of varying porosity and moisture content showed that as porosity increases, and as the formation saturation ratio decreases, relative gamma-ray fluence rates increase linearly for all energies. Correction factors for iron and water cylindrical shields were found to agree well with correction factors determined during previous studies allowing for the development of correction factors for type-304 stainless steel and low-carbon steel casings. Regression analyses of correction factor data produced equations for determining correction factors applicable to spectral gamma-ray well logs acquired under non-standard borehole conditions

  4. Investigation of well redevelopment techniques for the MWD Well Field, Savannah River Site, South Carolina

    International Nuclear Information System (INIS)

    Kroening, D.E.; Snipes, D.S.; Falta, R.W.; Benson, S.M.

    1994-01-01

    Clemson University, in cooperation with the Savannah River Site (SRS) is investigating well treatment techniques at the Mixed Waste Disposal (MWD) Well Field at SRS. This well field consists of fifteen wells screened in three aquifers with a downward trending head gradient. Based on aquifer performance tests of the MWD wells, it has been determined that many of the wells exhibit low well efficiencies and high skin factors, indicative of damaged wells. Bacterial investigations show that the biological activity in these wells is low, probably due to a high pH environment. Evaluation of the Calcite Saturation Index for each well indicates that nearly all of the MWD wells have the potential for precipitating calcite and calcite deposits have been observed on downhole equipment. The calcite deposits may occur due to the dissolution of the grout mixtures by waters infiltrating down the well annulus driven by the downward head gradient with subsequent precipitation of calcite in the higher pH sand pack. Well rehabilitation techniques currently under investigation include acidification, hydraulic fracturing and traditional physical methods. In addition to treating the wells at MWD, the authors plan to perform aquifer performance tests and evaluate post-treatment skin factors. Further research into the long term effects of well treatment will be conducted, focusing on long term chemical changes brought about by the treatments

  5. Simplified Casing Program for Development Wells in Mahu Well Block

    Directory of Open Access Journals (Sweden)

    Lu Zongyu

    2017-01-01

    Full Text Available In the Mahu well block of Junggar basin, the complex formation has many sets of pressure system. Especially, the formation with microcracks in the middle layer is loose and the pressure bearing capacity is low. Lost circulation is prone to occur in this layer. At present, high investment and long drilling period were the main problems in the exploration and development process. The geostress 3D model of Mahu well block was established by means of logging and drilling data. The model provided the three-pressure profiles of Mahu well block for casing program optimization and safety drilling. Each well could be optimized the intermediate casing setting position. The intermediate casing was saved 160 meters long. The total of drilling speed was improved 5 times compared with the past drilling process. Slim hole drilling technology raised ROP 51.96% higher, and the average drilling period is shorten to 24.83 days.

  6. The well-being questionnaire

    DEFF Research Database (Denmark)

    Pouwer, F; Snoek, Frank J; Van Der Ploeg, Henk M

    2000-01-01

    BACKGROUND: The Well-being Questionnaire (W-BQ) has been designed to measure psychological well-being in people with a chronic somatic illness and is recommended by the World Health Organization for widespread use. However, studies into the factor structure of this instrument are still limited...

  7. Community College Employee Wellness Programs

    Science.gov (United States)

    Thornton, L. Jay; Johnson, Sharon

    2010-01-01

    This paper describes the prevalence and characteristics of employee wellness programs in public community colleges accredited by the Southern Association of Colleges and Schools (SACS). A random sample of 250 public community colleges accredited by SACS was mailed a 46-item employee-wellness program survey. The survey solicited program information…

  8. IADC's well control accreditation program

    International Nuclear Information System (INIS)

    Kropla, S.M.

    1997-01-01

    WellCAP is a well control accreditation program devised and implemented by the International Association of Drilling Contractors (IADC). It is a worldwide comprehensive system that defines a well control training curriculum, establishes minimum standards and recommends guidelines for course structure. The program began in mid-1993 and is viewed as a means for training institutions to demonstrate industry recognition to customers, contractors and local governments. Schools can apply to have their courses accredited. The accreditation system is administered by a review panel. The application process requires that the school perform a detailed review of its curriculum and operations and bring them in line with the WellCAP curriculum and accreditation criteria. Currently, more than 75 schools around the world have requested application materials for WellCAP. To date fifteen schools have been fully accredited

  9. Well logging radioactive detector assembly

    International Nuclear Information System (INIS)

    Osburn, T.D.

    1992-01-01

    This patent describes a well logging instrument of the type having a radioactive logging sub having a sealed chamber and have a radioactive source for emitting radioactive energy into the well formation, the instrument having a radioactive energy detector for detecting gamma rays resulting from the emission of the radioactive energy into the well formation, and means for pressing the sub against the well of the well, an improved Dewar flask for the detector. It comprises: an inner housing formed of titanium and containing the detector; an outer housing formed of titanium, having a cylindrical side wall surrounding the inner housing and separated by a clearance which is evacuated, the outer housing being located within the sealed chamber in the sub of the instrument; a window section formed in the side wall of the outer housing adjacent the detector and on a side of the side wall closest to the wall of the well when the sub is pressed against the wall of the well; and wherein the inner housing has a cylindrical side wall that is of lesser wall thickness than the wall thickness of the side wall of the outer housing other than in the window section

  10. The Medicare Annual Wellness Visit.

    Science.gov (United States)

    Colburn, Jessica L; Nothelle, Stephanie

    2018-02-01

    The Medicare Annual Wellness Visit is an annual preventive health benefit, which was created in 2011 as part of the Patient Protection and Affordable Care Act. The visit provides an opportunity for clinicians to review preventive health recommendations and screen for geriatric syndromes. In this article, the authors review the requirements of the Annual Wellness Visit, discuss ways to use the Annual Wellness Visit to improve the care of geriatric patients, and provide suggestions for how to incorporate this benefit into a busy clinic. Copyright © 2017 Elsevier Inc. All rights reserved.

  11. Well-posed optimization problems

    CERN Document Server

    Dontchev, Asen L

    1993-01-01

    This book presents in a unified way the mathematical theory of well-posedness in optimization. The basic concepts of well-posedness and the links among them are studied, in particular Hadamard and Tykhonov well-posedness. Abstract optimization problems as well as applications to optimal control, calculus of variations and mathematical programming are considered. Both the pure and applied side of these topics are presented. The main subject is often introduced by heuristics, particular cases and examples. Complete proofs are provided. The expected knowledge of the reader does not extend beyond textbook (real and functional) analysis, some topology and differential equations and basic optimization. References are provided for more advanced topics. The book is addressed to mathematicians interested in optimization and related topics, and also to engineers, control theorists, economists and applied scientists who can find here a mathematical justification of practical procedures they encounter.

  12. Fremont Tree-Well Filter

    Science.gov (United States)

    Information about the SFBWQP Fremont Tree-Well Filter Spine project, part of an EPA competitive grant program to improve SF Bay water quality focused on restoring impaired waters and enhancing aquatic resources.

  13. Private Well Water and Fluoride

    Science.gov (United States)

    ... Private Wells Infant Formula Fluorosis Public Health Service Recommendation Water Operators & Engineers Water Fluoridation Additives Shortages of Fluoridation Additives Drinking Water Pipe Systems CDC-Sponsored Water Fluoridation Training Links to Other ...

  14. 7 Steps to Aging Well

    Science.gov (United States)

    ... Issue Past Issues Special Section 7 Steps to Aging Well Past Issues / Winter 2007 Table of Contents ... Exercise: A Guide from the National Institute on Aging is a publication from NIA that has strength, ...

  15. The Lathrop Wells volcanic center

    International Nuclear Information System (INIS)

    Crowe, B.; Morley, R.

    1992-01-01

    The Lathrop Wells volcanic center is located 20 km south of the potential Yucca Mountain site, at the south end of the Yucca Mountain range. This paper discusses a detailed Study Plan which was prepared describing planned geochronology and field studies to assess the chronology of the Lathrop Wells volcanic center and other Quaternary volcanic centers in the region. A paper was published discussing the geomorphic and soil evidence for a late Pleistocene or Holoceno age for the main cone of the center. The purpose of this paper was to expose the ideas concerning the age of the Lathrop Wells center to scientific scrutiny. Additionally, field evidence was described suggesting the Lathrop Wells center may have formed from multiple eruptive events with significant intervals of no activity between events. This interpretation breaks with established convention in the volcanological literature that small volume basalt centers are monogenetic

  16. Oil wells and gas wells: aspects of radiological safety

    International Nuclear Information System (INIS)

    Soares, S.M.V.O.

    1987-01-01

    The objective of the present work is to present and analyse the main radiological protection problems associated with non destructive inspections of oil wells, with the view of minimizing the dose to members of the public living in nearby urban zones. Problems related to the surveillance of such activities and the need for well formulated procedures are also discussed based on specific Brasilian regulations. Finally, some examples of radiological accidents that have occured in urban zones are described including the methodology employed for the rescue of Iridium-192 sources and for the estimate of radiation doses for workers and general public. (author) [pt

  17. Method of installing well conductors

    International Nuclear Information System (INIS)

    Houser, D.M.

    1991-01-01

    This patent describes a method of installing a well conductor in a marine environment. It comprises sealing a well conductor with a watertight plug; submerging the conductor from an elevated platform; adding additional conductor lengths to the conductor as needed thereby forming a conductor string; adjusting the buoyancy of the string to control the lowering of the string to the sea floor; and drilling through the plug after the conductor string has achieved the desired penetration depth

  18. Magnetic well for plasma confinement

    International Nuclear Information System (INIS)

    Valfells, A.; Chiu, Y.C.

    1977-01-01

    A multipole magnetic well for plasma confinement includes a plurality of current-carrying coils placed on planes corresponding to the facets of a regular polyhedron that can be symmetrically circumscribed about a sphere. The direction of current in the coils is such as to minimize the flux density at the center of the polyhedron, thereby providing a confinement well with three-dimensional symmetry having an increasing flux density in all directions from the center. 16 claims, 18 figures

  19. Well integrity in heavy oil wells : challenges and solutions

    Energy Technology Data Exchange (ETDEWEB)

    Taoutaou, S.; Osman, T.M.; Mjthab, M. [Schlumberger (Syrian Arab Republic); Succar, N. [Oudeh Petroleum, Damascus (Syrian Arab Republic)

    2010-07-01

    The Oudeh Petroleum Company (OPC) has used cyclic steam (the Huff and Puff technique) since 2006 to produce heavy oil from its OPC field that has an estimated 79.49 to 95.39 million cubic meters of oil contained in the Jurassic and Triassic reservoirs of the Butmah and Kurachine formations in Syria. Accumulations of oil and gas are present in the main Oudeh structure at depths between 1300 and 2250 meters. The Huff and Puff technique involves 3 phases. In the first phase which lasts about 1 month, steam is injected at 348 degrees C and 17.MPa to melt the wax condensate in the formation in order to decrease heavy oil viscosity. Phase 2 involves 3 soaking days. In phase 3, which lasts 2 to 3 months, the production rate is doubled compared to wells without steam. The cycle is then resumed once the pressure drops. The temperature cycling can compromise the well integrity through loss of hydraulic isolation in the cement sheath and thereby reduce hydrocarbon recovery. This paper described how the OPC has managed to achieved complete well integrity using an advanced cement system in more than 200 wells exposed to steam injection temperatures up to 348 degrees C and the associated high induced thermal stresses. The methodology for risk analysis of the cement sheath failure under steam stimulation was described along with the selection criteria for the advanced cement system to withstand temperature cycling. Two case histories involving a 50 well database were presented. 5 refs., 2 tabs., 13 figs.

  20. Λ and Σ well depth

    International Nuclear Information System (INIS)

    Satoh, Eiji

    1982-01-01

    The Λ well depth was calculated by taking into account the effect of the ΛΣ conversion. Takahashi et al. obtained the separate type of potentials which described the hyperon-nucleon interaction up to p waves. Two types of the potentials among several types they obtained were used to calculate the Λ well depth. The G matrix was easily calculated, and the Λ well depth was obtained by integrating the G matrix in momentum space up to the Fermi surface. The effect of the ΛΣ conversion was given by an equation. The total Λ well depth was estimated to be 9.13 MeV and 49.36 MeV for each type of potential, respectively. It was concluded that the argument by Bodmer et al. was not correct. The Σ well depth was also calculated using the potential obtained by Takahashi et al. for I = 1/2 and the one obtained by Σ + p → Σ + p scattering data for I = 3/2. The obtained value 35.30 MeV may be overestimated, and the experimental value is expected to be in the range from 20 MeV to 30 MeV. (Ito, K.)

  1. Optimization of well field management

    DEFF Research Database (Denmark)

    Hansen, Annette Kirstine

    Groundwater is a limited but important resource for fresh water supply. Differ- ent conflicting objectives are important when operating a well field. This study investigates how the management of a well field can be improved with respect to different objectives simultaneously. A framework...... for optimizing well field man- agement using multi-objective optimization is developed. The optimization uses the Strength Pareto Evolutionary Algorithm 2 (SPEA2) to find the Pareto front be- tween the conflicting objectives. The Pareto front is a set of non-inferior optimal points and provides an important tool...... for the decision-makers. The optimization framework is tested on two case studies. Both abstract around 20,000 cubic meter of water per day, but are otherwise rather different. The first case study concerns the management of Hardhof waterworks, Switzer- land, where artificial infiltration of river water...

  2. Modeling multi-lateral wells

    Energy Technology Data Exchange (ETDEWEB)

    Su, H. J.; Fong, W. S. [Chevron Petroleum Technology Company (United States)

    1998-12-31

    A method for modeling multi-lateral wells by using a computational scheme embedded in a general-purpose, finite difference simulator was described. The calculation of wellbore pressure profile for each lateral included the frictional pressure drop along the wellbore and proper fluid mixing at lateral connection points. To obtain a good production profile the Beggs and Brill correlation, a homogenous flow model, and the model proposed by Ouyang et al, which includes an acceleration term and accounts for the lubrication effect due to radial influx, were implemented. Well performance prediction results were compared using the three models. The impact of different tubing sizes on the well performance and the prediction contribution from each lateral were also studied. Results of the study in the hypothetical example and under normal field operating conditions were reviewed. 7 refs., 10 tabs., 3 figs.

  3. Quantum-Well Thermophotovoltaic Cells

    Science.gov (United States)

    Freudlich, Alex; Ignatiev, Alex

    2009-01-01

    Thermophotovoltaic cells containing multiple quantum wells have been invented as improved means of conversion of thermal to electrical energy. The semiconductor bandgaps of the quantum wells can be tailored to be narrower than those of prior thermophotovoltaic cells, thereby enabling the cells to convert energy from longer-wavelength photons that dominate the infrared-rich spectra of typical thermal sources with which these cells would be used. Moreover, in comparison with a conventional single-junction thermophotovoltaic cell, a cell containing multiple narrow-bandgap quantum wells according to the invention can convert energy from a wider range of wavelengths. Hence, the invention increases the achievable thermal-to-electrical energy-conversion efficiency. These thermophotovoltaic cells are expected to be especially useful for extracting electrical energy from combustion, waste-heat, and nuclear sources having temperatures in the approximate range from 1,000 to 1,500 C.

  4. Well drilling summary report for well 199-N-106A

    International Nuclear Information System (INIS)

    Walker, L.D.

    1996-02-01

    Past liquid waste disposal practices within the 100-N Area have resulted in the contamination of the underlying sediments and groundwater. The release of large volumes of liquid effluent to the 1301-N and 1325-N Liquid Waste Disposal Facilities caused the transport of 90 Sr and other contaminants to the groundwater. Further discussion of 100-N Area hydrogeology is provided in Hartman and Lindsey (1993). A pump-and-treat system combined with a vertical barrier is the preferred alternative for the N Springs Expedited Response Action. This document is a compilation of the data collected during the drilling of well 199-N-106A, an extraction well for the 100-N Pump-and-Treat Project

  5. Health and Wellness Policy Ethics

    Directory of Open Access Journals (Sweden)

    Frank J. Cavico

    2013-01-01

    Full Text Available This perspective is an ethical brief overview and examination of “wellness” policies in the modern workplace using practical examples and a general application of utilitarianism. Many employers are implementing policies that provide incentives to employees who lead a “healthy” lifestyle. The authors address how these policies could adversely affect “non-healthy” employees. There are a wide variety of ethical issues that impact wellness policies and practices in the workplace. The authors conclude that wellness programs can be ethical, while also providing a general reflective analysis of healthcare challenges in order to reflect on the externalities associated with such policies in the workplace.

  6. Environmental restoration using horizontal wells

    International Nuclear Information System (INIS)

    Looney, B.B.; Kaback, D.S.; Hazen, T.C.; Corey, J.C.

    1992-01-01

    This paper reports that under sponsorship from the U.S. Department of Energy, technical personnel from the Savannah River Laboratory and other DOE laboratories, universities and private industry have completed a full scale demonstration of environmental remediation using horizontal wells. The test successfully removed approximately 7250 kg of contaminants. A large amount of characterization and monitoring data was collected to aid in interpretation of the test and to provide the information needed for future environmental restorations that employ directionally drilled wells as extraction or delivery systems

  7. Health and Wellness Policy Ethics

    Science.gov (United States)

    Cavico, Frank J.; Mujtaba, Bahaudin G.

    2013-01-01

    This perspective is an ethical brief overview and examination of “wellness” policies in the modern workplace using practical examples and a general application of utilitarianism. Many employers are implementing policies that provide incentives to employees who lead a “healthy” lifestyle. The authors address how these policies could adversely affect “non-healthy” employees. There are a wide variety of ethical issues that impact wellness policies and practices in the workplace. The authors conclude that wellness programs can be ethical, while also providing a general reflective analysis of healthcare challenges in order to reflect on the externalities associated with such policies in the workplace. PMID:24596847

  8. Welling up asylum seekers’ memories

    NARCIS (Netherlands)

    Bernardt, Clemens; van Hoven, Bettina

    2014-01-01

    “Memories well up out of the depths of the unconscious and/or work away as (dis)enabling background. They are not static information, but are reworked in the light of current practice, and at the same time shape that practice” (Jones and Garde‐Hansen, 2012: 161).The aim of the forthcoming paper is

  9. Environmental protection for subsea wells

    International Nuclear Information System (INIS)

    Diehl, R.J.; Osborne, R.S.; Elwood, J.

    1991-01-01

    This patent describes an apparatus for receiving and containing surplus fluid from a subsea well installation on the ocean floor including a subsea wellhead assembly disposed in an enclosed protective chamber. It comprises a fluid-carrying conduit connected to the exterior of the protective chamber in fluid communication with the interior of the protective chamber; an inflatable dracon disposed upon and against the ocean floor in protective relation thereto when deflated and releasably connected in fluid communication to an outlet of the conduit; and pressure-balanced relief valve means disposed in the conduit between the outlet and the protective chamber for communicating surplus fluid from the interior of such chamber to the dracon when the fluid pressure within such chamber exceeds a predetermined value. This patent describes a method of completing an underwater well. It comprises installing a hollow cylindrical silo body with attached conductor guide casing into the sea floor; drilling and casing a well through the silo body and conductor guide casing; installing a wellhead assembly on top of the drilled and cased well inside of the silo body; installing a pressure-containing lid on top of the silo body, forming an enclosed protective chamber and isolating the interior of the chamber from the surrounding hydrostatic head of the sea water

  10. Wellness lessons from transportation companies.

    Science.gov (United States)

    2011-09-01

    The purpose of this report is to describe wellness programs and offer two suggestions for improving how they are delivered to commercial drivers and operators. It is not a large sample empirical study from which generalizations can be made. Rather, t...

  11. The Well Siblings of Schizophrenics.

    Science.gov (United States)

    Samuels, Laurel; Chase, Laura

    1979-01-01

    Explores the impact of having a schizophrenic sibling. Subjects functioned at high levels of adjustment. Separated from their families, there followed a period of reinvolvement, including responsibility for the ill sibling. Younger siblings expressed guilt over being well, whereas older siblings expressed guilt over earlier sibling rivalry.…

  12. Spring valve for well completion

    Energy Technology Data Exchange (ETDEWEB)

    Gorbatov, P T

    1966-07-22

    A spring-loaded valve for well completion consists of a housing with a spring-loaded closing element. In order to protect the closing element from corrosion which might lower the pressure drop, the closing element is made in the form of a piston. It is tightly connected with sealing elements. The housing has orifices, overlapping the piston in the initial position.

  13. Parenthood and Well-Being

    NARCIS (Netherlands)

    Roeters, Anne; Mandemakers, Jornt J.; Voorpostel, Marieke

    2016-01-01

    This study contributes to our knowledge on the association between parenthood and psychological well-being by examining whether pre-parenthood lifestyles (leisure and paid work) moderate the transition to parenthood. We expected that people with less active lifestyles would find it easier to

  14. Evaluating an employee wellness program.

    Science.gov (United States)

    Mukhopadhyay, Sankar; Wendel, Jeanne

    2013-12-01

    What criteria should be used to evaluate the impact of a new employee wellness program when the initial vendor contract expires? Published academic literature focuses on return-on-investment as the gold standard for wellness program evaluation, and a recent meta-analysis concludes that wellness programs can generate net savings after one or two years. In contrast, surveys indicate that fewer than half of these programs report net savings, and actuarial analysts argue that return-on-investment is an unrealistic metric for evaluating new programs. These analysts argue that evaluation of new programs should focus on contract management issues, such as the vendor's ability to: (i) recruit employees to participate and (ii) induce behavior change. We compute difference-in-difference propensity score matching estimates of the impact of a wellness program implemented by a mid-sized employer. The analysis includes one year of pre-implementation data and three years of post-implementation data. We find that the program successfully recruited a broad spectrum of employees to participate, and it successfully induced short-term behavior change, as manifested by increased preventive screening. However, the effects on health care expenditures are positive (but insignificant). If it is unrealistic to expect new programs to significantly reduce healthcare costs in a few years, then focusing on return-on-investment as the gold standard metric may lead to early termination of potentially useful wellness programs. Focusing short-term analysis of new programs on short-term measures may provide a more realistic evaluation strategy.

  15. Staying well in old age: Predicting older adults’ wellness

    Directory of Open Access Journals (Sweden)

    Sofia von Humboldt

    2013-07-01

    Full Text Available In an ageing world, the potential for ageing well in older people is still relatively unexplored.Literature has suggested that a sense of coherence (SOC is an important factor with regard to retaining a good quality of life in old age. To explore whether satisfaction with life (SWL, as well as sociodemographic, health- and lifestyle-related variables, are predictors of SOC in a community-dwelling sample of older adults and to assess significant differences in SOC amongst the four nationalities studied. Cross-national research encompassing a community-dwelling sample of 454 older adults aged 75 years and above was undertaken. Sense of coherence was assessed using the Orientation to Life Questionnaire and Satisfaction with Life (SWL was measured using the Satisfaction with Life Scale. Structural equation modelling was used to investigate a structural model of the self-reported SOC, comprising sociodemographic variables (age, gender, marital status, professional status, educational level, family’s annual income and standard of living arrangements, as well as SWL, lifestyle and health-related (physical activity and recent disease characteristics. Significant predictors were physical activity (β = 0.804; p < 0.001, recent disease (β = 0.501; p < 0.001 and SWL (β = 0.07; p = 0.004.These variables accounted for approximately 57.5%of the variability of SOC. Moreover, differences with regard to SOC were also found amongst the four nationality groups (F(3= 5.204; p = 0.002. Physical activity is the strongest predictor of self-reported SOC. Other predictors are the absence of a recent disease and SWL. The four nationalities presented significant differences with regard to SOC. This study highlighted the need for understanding the potential factors (in particular physical activity and further health-related characteristicsthat impact on older adults’ SOC.

  16. Well engineering in the nineties

    International Nuclear Information System (INIS)

    Schaafsma, M.G.

    1993-01-01

    Shell U.K. Exploration and Production, Operator in the U.K. sector of the North Sea for Shell and Esso, has adopted a corporate strategy in line with the 'Drilling in the Nineties' concept proposed by Shell International Petroleum Maatschappij B.V. (SIPM) for all Shell Operating Companies. Within Shell Expro the 'Drilling in the Nineties' concept has been broadened to incorporate the drilling, well services and equipment supply areas with the resultant name change to iWell Engineering in the Nineties'. (WIN 90's). This strategy has now been implemented and has substantially changed the modus operandi between operator and contractor with a strong emphasis on long term partnership relations with lead contractors. This paper summarises the strategy that has been developed, the implications of implementing this strategy; the implications to both a major operator and numerous contractor suppliers; the results to date; and the course of future partnership relations. (orig.)

  17. The Researches on Reasonable Well Spacing of Gas Wells in Deep and low Permeability Gas Reservoirs

    Science.gov (United States)

    Bei, Yu Bei; Hui, Li; Lin, Li Dong

    2018-06-01

    This Gs64 gas reservoir is a condensate gas reservoir which is relatively integrated with low porosity and low permeability found in Dagang Oilfield in recent years. The condensate content is as high as 610g/m3. At present, there are few reports about the well spacing of similar gas reservoirs at home and abroad. Therefore, determining the reasonable well spacing of the gas reservoir is important for ensuring the optimal development effect and economic benefit of the gas field development. This paper discusses the reasonable well spacing of the deep and low permeability gas reservoir from the aspects of percolation mechanics, gas reservoir engineering and numerical simulation. considering there exist the start-up pressure gradient in percolation process of low permeability gas reservoir, this paper combined with productivity equation under starting pressure gradient, established the formula of gas well spacing with the formation pressure and start-up pressure gradient. The calculation formula of starting pressure gradient and well spacing of gas wells. Adopting various methods to calculate values of gas reservoir spacing are close to well testing' radius, so the calculation method is reliable, which is very important for the determination of reasonable well spacing in low permeability gas reservoirs.

  18. Spacecraft Architecture and well being

    Science.gov (United States)

    Ören, Ayşe

    2016-07-01

    As we embark on a journey for new homes in the new worlds to lay solid foundations, we should consider not only the survival of frontiers but also well-being of those to live in zero gravity. As a versatile science, architecture encompasses abstract human needs as well. On our new different direction in the course of the Homo sapiens evolution, we can do this with designs addressing both our needs and senses. Well-being of humans can be achieved by creating environments supporting the cognitive and social stages in the evolution process. Space stations are going through their own evolution process. Any step taken can serve as a reference for further attempts. When studying the history of architecture, window designing is discussed in a later phase, which is the case for building a spaceship as well. We lean on the places we live both physically and metaphorically. The feeling of belonging is essential here, entailing trans-humanism, which is significant since the environment therein is like a dress comfortable enough to fit in, meeting needs without any burden. Utilizing the advent of technology, we can create moods and atmospheres to regulate night and day cycles, thus we can turn claustrophobic places into cozy or dream-like places. Senses provoke a psychological sensation going beyond cultural codes as they are rooted within consciousness, which allows designers to create a mood within a space that tells a story and evokes an emotional impact. Color, amount of light, sound and odor are not superficial. As much as intangible, they are real and powerful tools with a physical presence. Tapping into induction, we can solve a whole system based on a part thereof. Therefore, fractal designs may not yield good results unless used correctly in terms of design although they are functional, which makes geometric arrangement critical.

  19. Well-Being and Objectivity

    Directory of Open Access Journals (Sweden)

    Jakub Bożydar Wiśniewski

    2011-03-01

    Full Text Available In this paper, I investigate the issue of whether there exists an objective element of well-being, completely independent of anyone’s desires, interests and preferences. After rejecting health-based and convention-based approaches to objectivity, I conclude that the element in question consists in respecting autonomy, voluntariness of every purposive agent and the principle of non-aggression.

  20. Implementing an effective wellness program

    Energy Technology Data Exchange (ETDEWEB)

    Dickson, N. [Bruce Power Inc., Toronto, ON (Canada)

    2004-07-01

    Bruce Power is one of the largest nuclear sites in the world, with more than 3,700 employees. The utility strives to be one of Canada's most dynamic and innovative teams. The values of Bruce Power include: safety first; profit through progress; openness; respect and recognition; and professional and personal integrity. With respect to health and safety, Bruce Power strives to have zero medically treated injuries. Details of the healthy workplace committee were presented as well as details of the health and wellness program. Charts of health and mental health screening strategies were presented. Other programs include: an excellent benefits package; flexible working hours; family care days; banked time; an electronic suggestion box; and station condition records. It was noted that there is a strong external focus on health and safety as well. Details of community involvement and sponsorship were presented, along with details of on-site fitness facilities and fitness membership subsidies. Details of the National Quality Institute certification were also provided, including physical environment; lifestyle behaviours; and psycho-social environment. The importance of strong leadership in encouraging feedback, team talk and continuous leadership development was emphasized. Strategies to strengthen leadership include new hiring criteria for managers; management days; first line manager academy; a mentoring program; and task observation and coaching. Communication strategies include articles in weekly newspapers; monthly safety meeting video segments; posters and electronic signs; and voice mail messages from the chief executive officer. Details of the Eat Smart and Weight Challenge certification were provided. The management at human resources faces the challenge of continual change, demographics, and the fact that wellness is difficult to measure. tabs., figs.

  1. Horizontal well drilled to intersect existing vertical well

    International Nuclear Information System (INIS)

    Price, C.; Reynolds, J.

    1991-01-01

    Morse oilfield, in eastern Gray County of the Texas Panhandle, was originally developed between 1928 and 1937. It is but a very small part of the huge Texas Pandhandle field, which covers over 200,000 productive acres, containing 12,500 active wells with a cumulative production of one billion barrels of oil. The field produces from Permian age dolomites and the Pennsylvanian Granite Wash. This paper reports on multiple production techniques that have been used over the years with varying levels of success. Acidizing techniques in the late 1930s increased development, but the advent of hydraulic fracturing resulted in extensive development. The primary drive mechanism was solution-gas drive. Approximately one-fourth of Panhandle field has been subjected to gas injection, resulting in an estimated 50 million barrels of additional oil production. In 1955, waterflooding appeared to offer the most economical possibility of increasing ultimate recovery from the Brown Dolomite reservoir. The Morse Brown Dolomite pilot flood in Gray County and another Brown Dolomite pilot flood in Hutchinson County were the first two successful pilot floods in Panhandle field. The Morse flood has a total of 40 oil and 27 water injection wells on 500 flood acres. Morse field has a cumulative production of 15.7 million barrels of oil. The operating company, Future Petroleum Corp., a Dallas-based independent, believes that a third alternative using horizontal drilling has the potential to increase production. And it appears that the Brown Dolomite formation of Morse field offers the right combination of factors to attempt this type of venture

  2. Device for measuring well twistings

    Energy Technology Data Exchange (ETDEWEB)

    Kostin, Yu S; Golubin, S V; Keller, V F; Merzheyevskiy, A B; Zdorov, V P

    1982-01-01

    The device for measuring the well twistings with the use of fluids (poured into a vessel and which leave an imprint on the walls), containing a housing and adapter, is distinguished by the fact that in order to improve the accuracy of measurement by obtaining a clear imprint, it is equipped with cylinder that is spring-loaded in relation to the adapter, forming a vessel for fluid with the adapter. The adapter is made of two parts, one of which is made of neutral metal in relation to the fluid, and the other, from active in relation to the same fluid.

  3. Improvements to well scintillation counters

    International Nuclear Information System (INIS)

    Farukhi, M.R.; Mataraza, G.A.; Wimer, O.D.

    1977-01-01

    This invention relates to the field of ionising radiation detection. It concerns in particular scintillation detectors of the type that is commonly used in conjunction with a photomultiplier tube and that is used for monitoring radiation, for instance in the clinical measurements of isotopes. This invention enables well scintillation counters to be made, characterised by a high efficiency in measuring the thindown rate of radio-pharmaceutical solutions and to resolve the distribution of energy emanating from the radioactive source. It particularly consists in improving the uniformity of the luminous efficiency, the quality of the resolution and the efficiency whilst improving the reception of light [fr

  4. Hinkler Well - Centipede uranium deposits

    International Nuclear Information System (INIS)

    Crabb, D.; Dudley, R.; Mann, A.W.

    1984-01-01

    The Hinkler Well - Centipede deposits are near the northeastern margin of the Archean Yilgarn Block on a drainage system entering Lake Way. Basement rocks are granitoids and greenstones. The rocks are deeply weathered and overlain by alluvism. Granitoids, the probable uranium source, currently contain up to 25 ppm uranium, in spite of the weathering. The host calcrete body is 33 km long and 2 km wide. Uranium up to 1000 ppm occurs in carnotite over a 15 km by 2.5 km area. (author)

  5. Treatment of radon rich well water

    International Nuclear Information System (INIS)

    Mose, D.; Mushrush, G.; Chrosniak, C.

    1991-01-01

    Private wells supply potable water to about 25% of the homes in northern Virginia, and almost all water wells contain radon, a carcinogenic radionuclide derived form uranium in rocks and soil. The average Virginia well provides about 2,000-3,000 pCi/l of dissolved radon; the US Environmental Protection Agency has proposed that 300 pCi/l of should be the allowed maximum for public water supplies. To estimate the ability of activated charcoal to remove radon from private well water, a home supplied by a water well carrying at sign 4,000 pCi/l was studied. Following 1 year of water measurements, an in-line tank containing 1 cubic foot of activated charcoal was installed, and a subsequent 6 month interval of radon measurements on untreated and on treated water was conducted. Although removal rates of more than 90% have been reported, this study home showed a 60-70% radiation removal in the tank. A high percentage removal rate was reached in less than a month after installation, and was maintained for about 4 months, but the removal rate declined to about 50% by the end of the testing interval. Additional studies are being conducted to determine the effect of using different charcoal volumes, different charcoal types; also being studied is the gamma emission of the charcoal tank

  6. Staying well in old age: Predicting older adults’ wellness

    Directory of Open Access Journals (Sweden)

    Sofia von Humboldt

    2013-07-01

    Full Text Available In an ageing world, the potential for ageing well in older people is still relatively unexplored. Literature has suggested that a sense of coherence (SOC is an important factor with regard to retaining a good quality of life in old age. To explore whether satisfaction with life (SWL, as well as sociodemographic, health- and lifestyle-related variables, are predictors of SOC in a community-dwelling sample of older adults and to assess significant differences in SOC amongst the four nationalities studied. Cross-national research encompassing a community-dwelling sample of 454 older adults aged 75 years and above was undertaken. Sense of coherence was assessed using the Orientation to Life Questionnaire and Satisfaction with Life (SWL was measured using the Satisfaction with Life Scale. Structural equation modelling was used to investigate a structural model of the self-reported SOC, comprising sociodemographic variables (age, gender, marital status, professional status, educational level, family’s annual income and standard of living arrangements, as well as SWL, lifestyle and health-related (physical activity and recent disease characteristics. Significant predictors were physical activity (β = 0.804; p < 0.001, recent disease (β = 0.501;p < 0.001 and SWL (β = 0.07; p = 0.004. These variables accounted for approximately 57.5% of the variability of SOC. Moreover, differences with regard to SOC were also found amongst the four nationality groups (F(3 = 5.204; p = 0.002. Physical activity is the strongest predictor of self-reported SOC. Other predictors are the absence of a recent disease and SWL. The four nationalities presented significant differences with regard to SOC. This study highlighted the need for understanding the potential factors (in particular physical activity and further health-related characteristics that impact on older adults’ SOC. In ’n wêreld wat aan die verouder is, is die potensiaal van bejaardes om goed te verouder

  7. Computer Security: Well fought, FP!

    CERN Multimedia

    Stefan Lueders, Computer Security Team

    2015-01-01

    We are used to spam and phishing emails. But at the end of last year, a very special email struck one of our colleagues in the FP Department.   An accountant was gently asked in an email from “Rolf.Heuer@cern.ch” to prepare a financial transaction - in the strictest confidence. A phone call from the beneficiary to the accountant was made in an attempt to support this request. Despite being instructed not to talk to anyone, the e-mail, the phone conversation and the circumstances were all so suspicious that our colleague consulted his hierarchy, the internal audit service and us. Well done, FP Department! This is a rare case of an attempt at “social engineering”, i.e. luring someone into doing something detrimental to the Organization. The e-mail was fake. While it appeared to come from “Rolf.Heuer@cern.ch”, it actually came from an alleged fraudster outside CERN. The e-mail and the phone call showed that he was well prepared and dire...

  8. Mindfulness, psychological well-being and doping in talented young ...

    African Journals Online (AJOL)

    The primary aim of this research was to determine how mindfulness and psychological well-being relate to the propensity to use Performance-Enhancing Drugs (PEDs) in a sample of talented young athletes. A secondary aim was to determine how mindfulness and psychological well-being are related. This was a survey ...

  9. Real-time well condition monitoring in extended reach wells

    Energy Technology Data Exchange (ETDEWEB)

    Kucs, R.; Spoerker, H.F. [OMV Austria Exploration and Production GmbH, Gaenserndorf (Austria); Thonhauser, G. [Montanuniversitaet Leoben (Austria)

    2008-10-23

    Ever rising daily operating cost for offshore operations make the risk of running into drilling problems due to torque and drag developments in extended reach applications a growing concern. One option to reduce cost related to torque and drag problems can be to monitor torque and drag trends in real time without additional workload on the platform drilling team. To evaluate observed torque or drag trends it is necessary to automatically recognize operations and to have a 'standard value' to compare the measurements to. The presented systematic approach features both options - fully automated operations recognition and real time analysis. Trends can be discussed between rig- and shore-based teams, and decisions can be based on up to date information. Since the system is focused on visualization of real-time torque and drag trends, instead of highly complex and repeated simulations, calculation time is reduced by comparing the real-time rig data against predictions imported from a commercial drilling engineering application. The system allows reacting to emerging stuck pipe situations or developing cuttings beds long before the situations become severe enough to result in substantial lost time. The ability to compare real-time data with historical data from the same or other wells makes the system a valuable tool in supporting a learning organization. The system has been developed in a joint research initiative for field application on the development of an offshore heavy oil field in New Zealand. (orig.)

  10. Groundwater sampling with well-points

    International Nuclear Information System (INIS)

    Laubacher, R.C.; Bailey, W.M.

    1992-01-01

    This paper reports that BP Oil Company and Engineering-Science (ES) conducted a groundwater investigation at a BP Oil Distribution facility in the coastal plain of south central Alabama. The predominant lithologies include unconsolidated Quaternary-aged gravels, sands, silts and clay. Wellpoints were used to determine the vertical and horizontal extent of volatile hydrocarbons in the water table aquifer. To determine the vertical extent of contaminant migration, the hollow-stem augers were advanced approximately 10 feet into the aquifer near a suspected source. The drill stem and bit were removed very slowly to prevent sand heaving. The well-point was again driven ahead of the augers and four volumes (18 liters) of groundwater were purged. A sample was collected and the headspace vapor was analyzed as before. Groundwater from a total of seven borings was analyzed using these techniques. Permanent monitoring wells were installed at four boring locations which had volatile concentrations less than 1 part per million. Later groundwater sampling and laboratory analysis confirmed the wells had been installed near or beyond both the horizontal and vertical plume boundaries

  11. Risk assessment for SAGD well blowouts

    Energy Technology Data Exchange (ETDEWEB)

    Worth, D.; Alhanati, F.; Lastiwka, M. [C-FER Technologies, Edmonton, AB (Canada); Crepin, S. [Petrocedeno, Caracas (Venezuela)

    2008-10-15

    This paper discussed a steam assisted gravity drainage (SAGD) pilot project currently being conducted in Venezuela's Orinoco Belt. A risk assessment was conducted as part of the pilot program in order to evaluate the use of single barrier completions in conjunction with a blowout response plan. The study considered 3 options: (1) an isolated double barrier completion with a downhole safety valve (DHSV) in the production tubing string and a packer in the production casing annulus; (2) a partially isolated completion with no DHSV and a packer in the production casing annulus; and (3) an open single barrier completion with no additional downhole barriers. A reservoir model was used to assess the blowout flowing potential of SAGD well pairs. The probability of a blowout was estimated using fault tree analysis techniques. Risk was determined for various blowout scenarios, including blowouts during normal and workover operations, as well as blowouts through various flow paths. Total risk for each completion scenario was also determined at 3 different time periods within the production life of the well pair. The possible consequences of a blowout were assessed using quantitative consequence models. Results of the study showed that environmental and economic risks were much higher for the open completion technique. Higher risks were also associated with the earlier life of the completion strings. 20 refs., 3 tabs., 19 figs.

  12. Detector for deep well logging

    International Nuclear Information System (INIS)

    1976-01-01

    A substantial improvement in the useful life and efficiency of a deep-well scintillation detector is achieved by a unique construction wherein the steel cylinder enclosing the sodium iodide scintillation crystal is provided with a tapered recess to receive a glass window which has a high transmittance at the critical wavelength and, for glass, a high coefficient of thermal expansion. A special high-temperature epoxy adhesive composition is employed to form a relatively thick sealing annulus which keeps the glass window in the tapered recess and compensates for the differences in coefficients of expansion between the container and glass so as to maintain a hermetic seal as the unit is subjected to a wide range of temperature

  13. Family Wellness, Not HIV Prevention

    Science.gov (United States)

    Swendeman, Dallas; Flannery, Diane

    2010-01-01

    HIV exceptionalism (and disease-specific programs generally) garner both unbalanced funding and the most talented personnel, distorting local health priorities. In support of HIV exceptionalism, the successful mobilization of significant global health sector resources was not possible prior to HIV. Both sides of the debate have merits; rather than perpetuating polarization, we suggest that sustained improvements in global health require creating a prevention infrastructure to meet multiple health challenges experienced by local communities. We propose four fundamental shifts in HIV and disease prevention: (1) horizontally integrating prevention at one site locally, with priorities tailored to local health challenges and managed by local community leaders; (2) using a family wellness metaphor for services, not disease prevention; (3) implementing evidence-based prevention programs (EBPP) based on common principles, factors, and processes, rather than replication of specific programs; and (4) utilizing the expertise of private enterprise to re-design EBPP into highly attractive, engaging, and accessible experiences. PMID:19148744

  14. A neutron well logging system

    International Nuclear Information System (INIS)

    1980-01-01

    A pulsed neutron well logging system using a sealed off neutron generator tube is provided with a programmable digital neutron output control system. The control system monitors the target beam current and compares a function of this current with a pre-programmed control function to develop a control signal for the neutron generator. The control signal is used in a series regulator to control the average replenisher current of the neutron generator tube. The programmable digital control system of the invention also provides digital control signals as a function of time to provide ion source voltages. This arrangement may be utilized to control neutron pulses durations and repetition rates or to produce other modulated wave forms for intensity modulating the output of the neutron generator as a function of time. (Auth.)

  15. Well Monitoring System For EGS

    Energy Technology Data Exchange (ETDEWEB)

    Normann, Randy [Perma Works LLC, Pattonville, TX (United States); Glowka, Dave [Perma Works LLC, Pattonville, TX (United States); Normann, Charles [Perma Works LLC, Pattonville, TX (United States); Parker, James [Electrochemical Systems Inc, Knoxville, TN (United States); Caja, Josip [Electrochemical Systems Inc, Knoxville, TN (United States); Dustan, Don [Electrochemical Systems Inc, Knoxville, TN (United States); Caja, Mario [Electrochemical Systems Inc, Knoxville, TN (United States); Sariri, Kouros [Frequency Management Int. Inc., Huntington Beach, CA (United States); Beal, Craig [MajiQ Technologies Inc., Somerville, MA (United States)

    2017-02-26

    This grant is a collection of projects designed to move aircraft high temperature electronics technology into the geothermal industry. Randy Normann is the lead. He licensed the HT83SNL00 chip from Sandia National Labs. This chip enables aircraft developed electronics for work within a geothermal well logging tool. However, additional elements are needed to achieve commercially successful logging tools. These elements are offered by a strong list of industrial partners on this grant as: Electrochemical Systems Inc. for HT Rechargeable Batteries, Frequency Management Systems for 300C digital clock, Sandia National Labs for experts in high temperature solder, Honeywell Solid-State Electronics Center for reprogrammable high temperature memory. During the course of this project MagiQ Technologies for high temperature fiber optics.

  16. Monitoring Animal Well-being

    DEFF Research Database (Denmark)

    Gronskyte, Ruta

    environment. In video surveillance, the behavior of humans and animals is monitored based on extremes: event is present/event is not present, objects behave normally/objects behave abnormally, action 1/action 2/action 3, etc. In nature, the motion of humans and animals is continuous with transitions from one...... action to another. The second aim of this thesis is to propose a method to monitor motion as a continuous process using common classification methods....... are handled. Ensuring the well-being of such large numbers of pigs using only personnel is a complicated task. Video surveillance of humans has been widely used to ensure safety and order in multiple situations. Methods have been developed to detect individual actions or abnormal behavior in small groups...

  17. Financial well-being among Malaysian manufacturing employees

    Directory of Open Access Journals (Sweden)

    Shiau Wei Chan

    2018-06-01

    Full Text Available Employees and financial well-being are two aspects that are closely related to each other, and have been deeply studied by researchers. Not only can financial well-being directly affect an individual, but it can also indirectly affect his/her organization as well as employer. Any level of financial employees’ well-being, either low or high, will change their job performance. Thus, the purpose of this study is to determine the level of financial well-being among manufacturing employees in Batu Pahat, as well as to test the relationships between determinants and financial well-being among manufacturing employees in Batu Pahat. In this study, seven research hypotheses were developed to examine seven determinants, including age, income, gender, education, current job position, in-come, and marital status which influence employees‘ financial well-being. In this study, 220 employees at the production level were selected randomly from a manufacturing company in Batu Pahat, Johor, Malaysia. Then, a questionnaire was distributed to the employees. The data obtained were analyzed quantitatively using SPSS version 22.0. The results of this study revealed that the level of financial well-being was moderate and all of the determinants were positively related to financial well-being among the manufacturing employees. This quantitative study is important to the manufacturing industry in Malaysia in order to gain insight on the correlation between financial well-being and its determinants.

  18. WELL DONE!!! You were wonderful!

    CERN Multimedia

    Staff Association

    2010-01-01

    You were around 2000 active and retired staff members gathered on Thursday 18 March in the hall of the Main Building and in the march that followed. You listened attentively to the messages given by your Staff Association representatives. You were just as many to sign the petition “Pension Fund: a deficit of 2 000 million CHF, that’s enough!” The Member State delegates, who were gathered in a CERN Council meeting while all of this was happening, can now no longer ignore the huge concerns of all the staff and were able to judge for themselves its determination to be heard. We are now convinced that we can count on all of you over the coming months when we need to defend the employment conditions of active and retired staff. Today it is pensions, tomorrow will be health insurance and salaries. OBJECTIVE: employment conditions likely to perpetuate the excellence of the Organization. An excellence solely due to the dedication and professional quality of the current and past CERN st...

  19. Borehole imaging tool detects well bore fractures

    International Nuclear Information System (INIS)

    Ma, T.A.; Bigelow, E.L.

    1993-01-01

    This paper reports on borehole imaging data which can provide high quality geological and petrophysical information to improve fracture identification, dip computations, and lithology determinations in a well bore. The ability to visually quantify the area of a borehole wall occupied by fractures and vugs enhances reservoir characterization and well completion operations. The circumferential borehole imaging log (CBIL) instrument is an acoustic logging device designed to produce a map of the entire borehole wall. The visual images can confirm computed dips and the geological features related to dip. Borehole geometry, including breakout, are accurately described by complete circumferential caliper measurements, which is important information for drilling and completion engineers. In may reservoirs, the images can identify porosity type, bedding characteristics, and petrophysical parameters

  20. Neutron die-away well logging

    International Nuclear Information System (INIS)

    Jacobson, L.A.

    1976-01-01

    Neutron die-away well logging is extensively used for the location and monitoring of hydrocarbon zones in cased wells. Casing prohibits the use of conventional open-hole electrical resistivity methods. Through an appropriate interpretation of the measured capture cross-section, it is possible to determine the fractional hydrocarbon content of the rock pore volume, provided that the interstitial water is moderately saline (Σ/sub w/ greater than or equal to .035 cm -1 ). Special sealed D-T accelerator tubes and high voltage supplies have been developed for this purpose. They must fit into a 25 mm design circle and operate at 175 0 C, producing approximately 10 8 neutron/sec average in repetitive bursts. In the Schlumberger method an electronic servo-system adjusts burst and measure-gate timing to minimize statistical uncertainty regardless of die-away time

  1. Life Events and Subjective Well-being

    DEFF Research Database (Denmark)

    Pedersen, Peder J.; Schmidt, Torben Dall

    2014-01-01

    The literature on Happiness and Subjective Well-Being (SWB) has been dominated by studies of the impact from income and labour market status - and the impact on happiness from changes in these determinants. It seems obvious to expect an impact from non-economic factors as well. In the present paper.......The first is the European Community Household Panel (ECHP) with data collected over 8 annual waves from 1994 to 2001 in 15 EU member countries. Observations are available for up to 15 countries with big differences in fertility levels, child care institutions and labour force participation for married women....... At the same time, the ECHP data contains a lot of relevant demographic and labour market background variables to be included in the econometric analyses of the SWB impact from children. The second data set is The German Socio Economic Panel (GSOEP). Like the ECHP, the GSOEP data contains many relevant...

  2. DOE announces multi-well experiment

    Energy Technology Data Exchange (ETDEWEB)

    1981-07-01

    US Department of Energy has announced the launch of a carefully designed, multi-well experiment to develop technology to tap the unrealized production potential of the tight lenticular formations of the Western US. The 5-yr, $20-million project well be conducted in the Mesa Verde sandstones in the Rulison area of Garfield County, Colorado. DOE's objective is to define the critical parameters affecting the technology for producing gas from the tight sandstones containing hundreds of trillions of cubic feet of gas in the Piceance Basin and many other basins in the west. DOE will make any technology advances available so that this vast resource can be tapped and added to the US energy supply. Rulison field's low-permeability Mesa Verde sandstones have resisted numerous production experiments, including nuclear blast and massive hydraulic fracturing tests. The results have been inconsistent, and there has been no reliable method for determining why results were good or poor.

  3. Radon in private drinking water wells

    International Nuclear Information System (INIS)

    Otahal, P.; Merta, J.; Burian, I.

    2014-01-01

    At least 10 % of inhabitants in the Czech Republic are supplied with water from private sources (private wells, boreholes). With the increasing cost of water, the number of people using their own sources of drinking water will be likely to increase. According to the Decree of the State Office for Nuclear Safety about the Radiation Protection 307/2002 as amended by Decree 499/2005, the guideline limit for the supplied drinking water ('drinking water for public supply') for radon concentration is 50 Bq.l -1 . This guideline does not apply to private sources of drinking water. Radon in water influences human health by ingestion and also by inhalation when radon is released from water during showering and cooking. This paper presents results of measurements of radon concentrations in water from private wells in more than 300 cases. The gross concentration of alpha-emitting radionuclides and the concentrations of radium and uranium were also determined. (authors)

  4. Assessment of radiation safety in well logging

    International Nuclear Information System (INIS)

    Alles, A.; Pérez, Y.; Duménigo, C.

    2015-01-01

    Radiation safety assessments required by current regulations are a means to verify compliance with the requirements. Different methods have been used for this purpose. In the paper the results of applying the method of risk matrices, applied for the first time in the practice of well logging are exposed. For each initiating event frequency of occurrence, the severity of its consequences and the probability of failure of the barriers identified were evaluated. Starting from these assumptions, the risk associated is determined for each of the identified accident sequences, using for this the SEVRRA code 'Risk Assessment System', originally designed for use in radiotherapy. As an result sequences increased risk associated with the practice of well logging were identified, which is the starting point for the further implementation of a coherent program of dose optimization in practice. [es

  5. Well logging instrumental and methodological research

    International Nuclear Information System (INIS)

    Andrassy, L.; Barath, I.; Dorko, R.

    1983-01-01

    This part of the Annual Report of the Roland Eoetvoes Geophysical Institute (ELGI) of Hungary for 1982, summarizes the well logging instrumental and methodological researches of ELGI. The theoretical neutron diffusion fluxes for black and brown coals of Hungarian mines were calculated. A coal probe was developed and tested in boreholes using computerized data processing and interpretation. An X-ray radiometric method was used for the determination of Cu and Fe contents of minerals. Researches in the field of magnetic susceptibility and induced polarization logging are also summarized. A rapid analyzer for bauxite mining and a photorecorder for petroleum industry were developed by ELGI. (D.Gy.)

  6. Characterization Well R-7 Geochemistry Report

    International Nuclear Information System (INIS)

    Longmire, P.; Goff, F.

    2002-01-01

    This report provides analytical results for four groundwater-sampling rounds conducted at characterization well R-7. The goal of the characterization efforts was to assess the hydrochemistry and to determine if contaminants from Technical Area (TA)-2 and TA-21 of the Los Alamos National Laboratory (LANL or the Laboratory) are present in the regional aquifer in the vicinity of the well. Figure 1.0-1 shows the well's location in the narrow upper part of Los Alamos Canyon, between the inactive Omega West reactor and the mouth of DP Canyon. Well R-7 is in an excellent location to characterize the hydrology and groundwater chemistry in both perched groundwater and the regional aquifer near sites of known Laboratory effluent release, including radionuclides and inorganic chemicals (Stone et al. 2002, 72717). The Risk Reduction and Environmental Stewardship-Remediation (RRES-R) Program (formerly the Environmental Restoration [ER] Project) installed well R-7 as part of groundwater investigations to satisfy requirements of the ''Hydrogeologic Workplan'' (LANL 1998, 59599) and to support the Laboratory's ''Groundwater Protection Management Program Plan'' (LANL 1996, 70215). Well R-7 was designed primarily to provide geochemical or water quality and hydrogeologic data for the regional aquifer within the Puye Formation. This report also presents a geochemical evaluation of the analytical results for well R-7 and provides hydrogeochemical interpretations using analytical results for groundwater samples collected at the well. Discussion of other hydrogeochemical data collected within the east-central portion of the Laboratory, however, is deferred until they can be evaluated in the context of sitewide information collected from other RRES and Hydrogeologic Workplan characterization wells (R-8A, R-9, and R-9i). Once all deep groundwater investigations in the east-central portion of the Laboratory are completed, geochemical and hydrogeologic conceptual models for the Los Alamos

  7. Perceptions of Equid Well Being Well-Being in South Dakota.

    Science.gov (United States)

    McNeill, Lindsey R; Bott, Rebecca C; Mastellar, Sara L; Djira, Gemechis; Carroll, Heidi K

    2018-01-01

    In South Dakota, the status of equid well being is relatively unknown. This study sought to (a) gain understanding about the current perceptions of nonhuman animal well being in South Dakota, with an emphasis on horses and other equids; (b) determine the level of care equids are reportedly receiving and the perceived challenges to equine well being in South Dakota, and (c) determine if people from diverse geographical locations (east or west of the Missouri River) have similar views on the well being of equids in South Dakota. Respondents indicated the current level of equid well being in South Dakota is sufficient, but there is room for improvement. Current challenges for the equid population of South Dakota were the high annual cost of horse care, poor horsemanship, dental problems, and whether caregivers understand basic equine care. Several significant associations arose between where a respondent lives (Western or Eastern South Dakota) and their level of agreement with various statements. The results provide a benchmark to gauge well being and help give direction for future educational needs that can continue to improve equid care.

  8. Well Waters Fluoride in Enugu, Nigeria

    Directory of Open Access Journals (Sweden)

    ISI Ogbu

    2012-03-01

    Full Text Available Abnormal fluoride levels in drinking water have been associated with adverse health effects. To determine the fluoride content of well waters in Enugu, southeastern Nigeria, water samples from 50 artisan wells chosen by multistage sampling procedure from the 5 zones of Enugu municipality were analyzed in duplicates for their fluoride content. The zonal mean values were 0.60, 0.70, 0.62, 0.62, and 0.63 mg/L for Abakpa Nike, Achara Layout, Obiagu/ Ogui, Trans Ekulu and Uwani, respectively (p<0.05. The mean value for the whole city was 0.63 mg/L. Although, the mean level of fluoride recorded in this study is currently within safe limits (1.5 mg/L, WHO 2011, it is important to monitor continuously the fluoride content of well waters in the municipality in view of the increasing industrial activities going on in the city and heavy reliance on well water for domestic purposes and the widespread use of consumer products containing fluoride.

  9. Enhanced Geothermal Systems (EGS) Well Construction Technology Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    Polsky, Yarom [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Capuano, Louis [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Finger, John [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Huh, Michael [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Knudsen, Steve [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Chip, A.J. Mansure [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Raymond, David [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Swanson, Robert [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2008-12-01

    This report provides an assessment of well construction technology for EGS with two primary objectives: 1. Determining the ability of existing technologies to develop EGS wells. 2. Identifying critical well construction research lines and development technologies that are likely to enhance prospects for EGS viability and improve overall economics.

  10. How well can centenarians hear?

    Directory of Open Access Journals (Sweden)

    Zhongping Mao

    Full Text Available With advancements in modern medicine and significant improvements in life conditions in the past four decades, the elderly population is rapidly expanding. There is a growing number of those aged 100 years and older. While many changes in the human body occur with physiological aging, as many as 35% to 50% of the population aged 65 to 75 years have presbycusis. Presbycusis is a progressive sensorineural hearing loss that occurs as people get older. There are many studies of the prevalence of age-related hearing loss in the United States, Europe, and Asia. However, no audiological assessment of the population aged 100 years and older has been done. Therefore, it is not clear how well centenarians can hear. We measured middle ear impedance, pure-tone behavioral thresholds, and distortion-product otoacoustic emission from 74 centenarians living in the city of Shaoxing, China, to evaluate their middle and inner ear functions. We show that most centenarian listeners had an "As" type tympanogram, suggesting reduced static compliance of the tympanic membrane. Hearing threshold tests using pure-tone audiometry show that all centenarian subjects had varying degrees of hearing loss. More than 90% suffered from moderate to severe (41 to 80 dB hearing loss below 2,000 Hz, and profound (>81 dB hearing loss at 4,000 and 8,000 Hz. Otoacoustic emission, which is generated by the active process of cochlear outer hair cells, was undetectable in the majority of listeners. Our study shows the extent and severity of hearing loss in the centenarian population and represents the first audiological assessment of their middle and inner ear functions.

  11. How Well Can Centenarians Hear?

    Science.gov (United States)

    Mao, Zhongping; Zhao, Lijun; Pu, Lichun; Wang, Mingxiao; Zhang, Qian; He, David Z. Z.

    2013-01-01

    With advancements in modern medicine and significant improvements in life conditions in the past four decades, the elderly population is rapidly expanding. There is a growing number of those aged 100 years and older. While many changes in the human body occur with physiological aging, as many as 35% to 50% of the population aged 65 to 75 years have presbycusis. Presbycusis is a progressive sensorineural hearing loss that occurs as people get older. There are many studies of the prevalence of age-related hearing loss in the United States, Europe, and Asia. However, no audiological assessment of the population aged 100 years and older has been done. Therefore, it is not clear how well centenarians can hear. We measured middle ear impedance, pure-tone behavioral thresholds, and distortion-product otoacoustic emission from 74 centenarians living in the city of Shaoxing, China, to evaluate their middle and inner ear functions. We show that most centenarian listeners had an “As” type tympanogram, suggesting reduced static compliance of the tympanic membrane. Hearing threshold tests using pure-tone audiometry show that all centenarian subjects had varying degrees of hearing loss. More than 90% suffered from moderate to severe (41 to 80 dB) hearing loss below 2,000 Hz, and profound (>81 dB) hearing loss at 4,000 and 8,000 Hz. Otoacoustic emission, which is generated by the active process of cochlear outer hair cells, was undetectable in the majority of listeners. Our study shows the extent and severity of hearing loss in the centenarian population and represents the first audiological assessment of their middle and inner ear functions. PMID:23755251

  12. Training Programs for Managing Well-being in Companies

    Directory of Open Access Journals (Sweden)

    Treven Sonja

    2015-08-01

    Full Text Available This paper discussed the significance of well-being (WB and well-being management (WBM. As successful WBM requires the implementation of different training programs, such programs are presented in detail. The cause–effect relationship between training and individual/organizational performance is researched as well. The aim of the research to support this article was to present WBM, its training programs, as well as the determination of WBM activities concerning the mentioned programs implemented in Slovenian organizations.

  13. Vapor-liquid equilibrium and critical asymmetry of square well and short square well chain fluids.

    Science.gov (United States)

    Li, Liyan; Sun, Fangfang; Chen, Zhitong; Wang, Long; Cai, Jun

    2014-08-07

    The critical behavior of square well fluids with variable interaction ranges and of short square well chain fluids have been investigated by grand canonical ensemble Monte Carlo simulations. The critical temperatures and densities were estimated by a finite-size scaling analysis with the help of histogram reweighting technique. The vapor-liquid coexistence curve in the near-critical region was determined using hyper-parallel tempering Monte Carlo simulations. The simulation results for coexistence diameters show that the contribution of |t|(1-α) to the coexistence diameter dominates the singular behavior in all systems investigated. The contribution of |t|(2β) to the coexistence diameter is larger for the system with a smaller interaction range λ. While for short square well chain fluids, longer the chain length, larger the contribution of |t|(2β). The molecular configuration greatly influences the critical asymmetry: a short soft chain fluid shows weaker critical asymmetry than a stiff chain fluid with same chain length.

  14. Uranium speciation and removal from well water

    International Nuclear Information System (INIS)

    Ayaz, B.; DeVol, T.; Navratil, J.D.

    2001-01-01

    The purpose of this work was to determine the form of uranium present in the well water and to test the effectiveness of common household treatment devices to remove uranium and radium. Batch tests with activated carbon, iron powder, anion exchange resin and cation exchange resin were used to characterize the form of uranium in the drinking water. In the tests, water and the separation materials were first equilibrated, filtered and then analyzed by alpha spectrometry. The results of the batch tests showed that it is possible to remove greater than 90% of the uranium and radium in the drinking water by using any of the sorbents listed above. Simple filtration with 0.1 μm had little to no impact on uranium removal. Results of tests using household treatment devices will also be presented. (authors)

  15. PRODUCTION WELL PERFORMANCE ENHANCEMENT USING SONICATION TECHNOLOGY

    Energy Technology Data Exchange (ETDEWEB)

    Michael A. Adewumi; M. Thaddeus Ityokumbul; Robert W. Watson; Mario Farias; Glenn Heckman; Johnson Olanrewaju; Eltohami Eltohami; Bruce G. Miller; W. Jack Hughes; Thomas C. Montgomery

    2003-12-17

    The objective of this project is to develop a sonic well performance enhancement technology that focuses on near wellbore formations. In order to successfully achieve this objective, a three-year project has been defined with each year consisting of four tasks. The first task is the laboratory-scale study whose goal is to determine the underlying principles of the technology. The second task will develop a scale-up mathematical model to serve as the design guide for tool development. The third task is to develop effective transducers that can operate with variable frequency so that the most effective frequencies can be applied in any given situation. The system, assembled as part of the production string, ensures delivery of sufficient sonic energy to penetrate the near-wellbore formation. The last task is the actual field testing of the tool. The first year of the project has been completed.

  16. TWRS privatization phase 1 monitoring wells engineering study

    International Nuclear Information System (INIS)

    Williams, B.A.; Newcomer, D.R.

    1998-04-01

    This engineering study provides an evaluation of existing wells and boreholes (wells) within the proposed location for the Tank Waste Remediation System (TWRS) Privatization Phase 1 demonstration site. Phase 1 is part of the TWRS program that was established to manage, retrieve, treat, immobilize, and dispose of high-level waste stored in underground tanks at the Hanford Site. This evaluation is to determine which wells will remain active within the demonstration site based on regulatory, programmatic, or other beneficial use requirements. An initial evaluation of wells within the demonstration site was conducted in 1996. However, changes in construction plans and expansion of the demonstration site necessitated a reevaluation and reclassification of the wells that are within the expanded site. Impacted wells include many of those previously evaluated as well as additional wells identified in or near the expansion areas. Thirty-three wells exist within and immediately adjacent to the identified boundary of the proposed demonstration site. The wells identified for decommissioning will be abandoned according to the well decommissioning plan. Future well requirements within the site include replacement wells for those wells impacted by construction activities, replacements for Resource Conservation and Recovery Act of 1976 (RCRA) wells going dry, and a new characterization well installed to support a TWRS Phase 2 site assessment

  17. Predictors of subjective well-being among older Ghanaians | Calys ...

    African Journals Online (AJOL)

    The single item measure of life satisfaction was used to determine subjective wellbeing. Descriptive statistics as well as logistic regression analysis were carried out to determine the predictors of SWB. Results: A total of 4724 individuals aged 50 years and above responded to the questionnaires. Of these 50.4% were males.

  18. Preparedness to Implement Wellness Strategies: Perceptions of School Counselors

    Science.gov (United States)

    Burnett, Tena

    2012-01-01

    The purpose of this study is to survey school counselors to determine their knowledge and perceived preparedness to implement wellness strategies in school counseling programs. Wellness plans are a requirement for thousands of public school districts in the United States. There are no established standards for the training of school counselors in…

  19. 25 CFR 226.32 - Well records and reports.

    Science.gov (United States)

    2010-04-01

    ... Superintendent; a copy of electrical, mechanical or radioactive log, or other types of survey of the well bore... pressure or fluid sample surveys, temperature surveys, directional surveys, and the like; the materials and... such tests and surveys as may be required by the Superintendent to determine conditions in the well or...

  20. Development of geothermal-well-completion systems. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Nelson, E.B.

    1979-01-01

    Results of a three year study concerning the completion of geothermal wells, specifically cementing, are reported. The research involved some specific tasks: (1) determination of properties an adequate geothermal well cement must possess; (2) thorough evaluation of current high temperature oilwell cementing technology in a geothermal context; (3) basic research concerning the chemical and physical behavior of cements in a geothermal environment; (4) recommendation of specific cement systems suitable for use in a geothermal well.

  1. Self-absorption corrections for well-type germanium detectors

    International Nuclear Information System (INIS)

    Appleby, P.G.; Richardson, N.; Nolan, P.J.

    1992-01-01

    Corrections for self-absorption are of vital importance to accurate determination by gamma spectrometry of radionuclides such as 210 Pb, 241 Am and 234 Th which emit low energy gamma radiation. A simple theoretical model for determining the necessary corrections for well-type germanium detectors is presented. In this model, self-absorption factors are expressed in terms of the mass attenuation coefficient of the sample and a parameter characterising the well geometry. Experimental measurements of self-absorption are used to evaluate the model and to determine a semi-empirical algorithm for improved estimates of the geometrical parameter. (orig.)

  2. Production Well Performance Enhancement using Sonication Technology

    Energy Technology Data Exchange (ETDEWEB)

    Adewumi, Michael A; Ityokumbul, M Thaddeus; Watson, Robert W; Eltohami, Eltohami; Farias, Mario; Heckman, Glenn; Houlihan, Brendan; Karoor, Samata Prakash; Miller, Bruce G; Mohammed, Nazia; Olanrewaju, Johnson; Ozdemir, Mine; Rejepov, Dautmamed; Sadegh, Abdallah A; Quammie, Kevin E; Zaghloul, Jose; Hughes, W Jack; Montgomery, Thomas C

    2005-12-31

    The objective of this project was to develop a sonic well performance enhancement technology that focused on near wellbore formation damage. In order to successfully achieve this objective, a three-year project was defined. The entire project was broken into four tasks. The overall objective of all this was to foster a better understanding of the mechanisms involved in sonic energy interactions with fluid flow in porous media and adapt such knowledge for field applications. The fours tasks are: • Laboratory studies • Mathematical modeling • Sonic tool design and development • Field demonstration The project was designed to be completed in three years; however, due to budget cuts, support was only provided for the first year, and hence the full objective of the project could not be accomplished. This report summarizes what was accomplished with the support provided by the US Department of Energy. Experiments performed focused on determining the inception of cavitation, studying thermal dissipation under cavitation conditions, investigating sonic energy interactions with glass beads and oil, and studying the effects of sonication on crude oil properties. Our findings show that the voltage threshold for onset of cavitation is independent of transducer-hydrophone separation distance. In addition, thermal dissipation under cavitation conditions contributed to the mobilization of deposited paraffins and waxes. Our preliminary laboratory experiments suggest that waxes are mobilized when the fluid temperature approaches 40°C. Experiments were conducted that provided insights into the interactions between sonic wave and the fluid contained in the porous media. Most of these studies were carried out in a slim-tube apparatus. A numerical model was developed for simulating the effect of sonication in the nearwellbore region. The numerical model developed was validated using a number of standard testbed problems. However, actual application of the model for scale

  3. Health determinants and podiatry.

    Science.gov (United States)

    Brodie, B S

    2001-09-01

    Public health and podiatry have a natural union both through historical development and a shared interest in prevention. Podiatry is considered in terms of health determinants such as income, social support, education and environment. The author considers that podiatry has a constructive role to play in the improvement of health and well-being in terms of the previously unrecognised relationship of the profession to the determinants of health and population health promotion.

  4. Efficiency evaluation for nanomaterials applied in well bottom zone treatment after completion of well construction

    Directory of Open Access Journals (Sweden)

    GREZINA Olga Anatolyevna,

    2017-11-01

    Full Text Available Efficient development of low production wells is not possible without the bottom zone treatment, both during the well development phase when its construction is completed and in the process of flow rate reduction during the operation phase. The efficiency evaluation for the new technology, including one in which nanomaterials are used, implies comparison of the actual level achieved after the new technology has been applied with the projected baseline level that might be achieved by the previously applied technique. The paper presents geological and statistical modeling of the bottom zone acid-implosion treatment performed with the hydrochloric acid solution in combination with the shock-wave effect characterized by cyclic recurrence and dynamic mode. The analyzed results have been achieved in the low permeable carbonate reservoir of a very complex geological structure in oil operating facility. The nature and the extent of geological-technological parameters influence on the acidimplosion treatment results were determined by the multiple regression method, and the most influential parameters were selected; recommendations for boreholes selection and technological parameters of treatment were made. Models to forecast flow rate and oil production growth, reduction of fractional oil content in the well production, the acid-implosion impact duration were elaborated. The models can be used to evaluate efficiency of bottom zone treatment technologies after completion of well construction with nanomaterials application.

  5. Risk determination

    International Nuclear Information System (INIS)

    1993-01-01

    The issue gives a survey of the legal, theological, statistical and health aspects of risk determination. It includes the opinions of physicians, epidemiologists, mathematicians, toxicologists, biologists, theologists and physicists who explain and illustrate the term of risk from their perspective. (orig./DG) [de

  6. Interpretation of Nonlinear Well Loss Coefficients for Rorabaugh (1953) Method.

    Science.gov (United States)

    Kurtulus, B.; Yaylım, T. N.; Avşar

    2016-12-01

    Step drawdown test (SDT) are essential for hydrogeologist to determine aquifer loss and well loss parameters. In a SDT, different series of constant-discharges with incremental rates are conducted to obtain incremental drawdown into the pumping well. Pumping well efficiency (if the well is properly developed and designed), aquifer characteristics (transmissivity, storativity) and discharge-drawdown relationship can be derived from SDT. The well loss parameter directly associate with the well efficiency. The main problem is to determine the correct well loss parameter in order to estimate aquifer characteristics. Walton (1962) stated that the interpretation of the well efficiency is possible to determine the nonlinear head loss coefficient (C) with p equals to 2 and Walton (1962) presented a criteria that suggested the following terms: If C is less than 1800 m2/s5, the is properly developed and designed, If C is ranged from 1800 m2/s5 to 3600 m2/s5, the well has a mild deterioration, If C is greater than 3600 m2/s5, the well has a severe clogging. Until now, several well-known computer techniques such as Aqutesolv, AquiferWin32 , AquifertestPro can be found in the literature to evaluate well efficiency when exponential parameter (p) equals to 2. However, there exist a lack of information to evaluate well efficiency for different number of exponential parameter (p). Strategic Water Storage & Recovery (SWSR) Project in Liwa, Abu Dhabi is the leading and unique hydrogeology project in the world because of its both financial and scientific dimension. A total of 315 recovery wells have been drilled in pursuance of the scope of the SWSR project. A Universal Well Efficiency Criteria (UWEC) is developed using 315 Step Drawdown Test (SDT). UWEC is defined for different number of head loss equation coefficients. The results reveal that there is a strong correlation between non-linear well loss coefficient (C) and exponential parameter (p) up to a coefficient of determination

  7. Geohydrologic reconnaissance of drainage wells in Florida

    Science.gov (United States)

    Kimrey, J.O.; Fayard, L.D.

    1984-01-01

    Drainage wells are used to inject surface waters directly into an aquifer, or shallow ground waters directly into a deeper aquifer, primarily by gravity. Such wells in Florida may be grouped into two broad types: (1) surface-water injection wells, and (2) interaquifer connector wells. Drainage wells of the first type are further categorized as either Floridan aquifer drainage wells or Biscayne aquifer drainage wells. Floridan aquifer drainage wells are commonly used to supplement drainage for urban areas in karst terranes of central and north Florida. Data are available for 25 wells in the Ocala, Live Oak, and Orlando areas that allow comparison of the quality of water samples from these Floridan aquifer drainage wells with allowable contaminant levels. Comparison indicates that maximum contaminant levels for turbidity, color, and iron, manganese, and lead concentrations are equaled or exceeded in some drainage-well samples, and relatively high counts for coliform bacteria are present in most wells. Biscayne aquifer drainage wells are used locally to dispose of stormwater runoff and other surplus water in southeast Florida, where large numbers of these wells have been permitted in Dade and Broward Counties. The majority of these wells are used to dispose of water from swimming pools or to dispose of heated water from air-conditioning units. The use of Biscayne aquifer drainage wells may have minimal effect on aquifer potability so long as injection of runoff and industrial wates is restricted to zones where chloride concentrations exceed 1,500 milligrams per liter. Interaquifer connector wells are used in the phosphate mining areas of Polk and Hillsborough Counties, to drain mines and recharge the Floridan aquifer. Water-quality data available from 13 connector wells indicate that samples from most of these wells exceed standards values for iron concentration and turbidity. One well yielded a highly mineralized water, and samples from 6 of the other 12 wells exceed

  8. Improved waterflooding efficiency by horizontal wells

    Energy Technology Data Exchange (ETDEWEB)

    Popa, C. G. [Petroleum and Gas Univ., Ploesti (Romania); Clipea, M. [SNP Petrom SA, ICPT Campina (Romania)

    1998-12-31

    The influence of well pattern involving the use of horizontal wells on the overall efficiency of the waterflooding process was analyzed. Three different scenarios were examined: (1) a pattern of using two parallel horizontal wells, one for injection, the other for production, (2) a pattern of one horizontal well for water injection and several vertical wells for production, and (3) a pattern of using vertical wells for injection and one horizontal well for production. In each case, the waterflooding process was simulated using a two phase two dimensional numerical model. Results showed that the pressure loss along the horizontal section had a large influence on the sweep efficiency whether the horizontal well was used for injection or production. Overall, the most successful combination appeared to be using vertical wells for injection and horizontal wells for production. 4 refs., 1 tab., 15 figs.

  9. Well-Being, Science, and Philosophy

    OpenAIRE

    Rodogno, Raffaele

    2014-01-01

    Academic research on well-being is pursued in multiple disciplines and currently exploding. Governments are also interested in the topic, as witnessed by their recent efforts to develop statistical measures of progress that include well-being indicators. Combined, this interest opens the door to the fruitful application of well-being research to society. Research on well-being, however, is not always well integrated across the disciplines that purport to study it. In particular, there is insu...

  10. Spa Products as Main Orientation in Wellness Tourism in Bali

    Directory of Open Access Journals (Sweden)

    I Gusti Made Wendri

    2018-03-01

    Full Text Available Wellness Spa is developed from conventional spa in response to the influence of the present tourism trend which is much in demand of the achievement of wellness aspect of life. Wellness tourism is a subdivision of health tourism. Wellness spa is the core product for wellness tourism. In fact, to date, people’s knowledge about wellness spa is still poor. This fact has motivated the implementation of this research under the title “Spa Products as Main Orientation in Wellness Tourism in Bali”. The objective of the research is to find out what products becomes the orientation in wellness tourism in Ubud as well as in South Badung. This qualitative research uses a phenomenological approach to the study. The determination of the informants is purposively done, and the information concerning the object of the research is obtained by deep interview controlled by a checklist based on Wellness Wheel concept. The location of the research is Ubud and South Badung areas, the latter represented by Nusa Dua, Jimbaran, and Kuta. The research uses 10 informants, 5 from Ubud and 5 from South Badung. The informants include spa managers and spa therapists. The result of the research shows that such packages as Bali spa ritual package, personal growth, and eco-adventure package become the most attractive products offered by wellness tourism industry and enjoyed by the tourists for the fulfilment of the tourists' wellness needs.

  11. Interpretation of fracture system geometry using well test data

    International Nuclear Information System (INIS)

    Doe, T.W.; Geier, J.E.

    1990-11-01

    This report presents three methods of determining fracture geometry and interconnection from well test information. Method 1 uses evidence for boundary effects in the well test to determine the distance to and type of fracture boundary. Method 2 uses the spatial dimension of the well test to infer the geometry of the fracture-conduit system. Method 3 obtains information of the spacing and transmissivity distribution of individual conductive fractures from fixed-interval-length (FIL) well tests. The three methods are applied to data from the Site Characterization and Validation (SCV) at the 360 m level of the Stripa Mine. The focus of the technology development is the constant-pressure welltest, although the general approaches apply to constant-rate well test, and to a much lesser extent slug or pulse test, which are relatively insensitive to boundaries and spatial dimension. Application of the techniques to the N and W holes in the SCV area shows that there is little evidence for boundary effects in the well test results. There is, on the other hand, considerable variation in the spatial dimension of the well test data ranging from sub-linear (fractures which decrease in conductivity with distance from the hole) to spherical, for three-dimensional fracture systems. The absence of boundary effects suggest that the rock mass in the SCV area contains a well connected fracture system. Major uncertainties in the analysis of well test data limit the use of single borehole measurements. Without assuming the value of specific storage, one can reliably determine only the spatial dimension, and, for two dimensional flow only, the transmissivity. Among the uncertainties are the effective well radius, the degree to which the fracture conduits fill the n-dimensional space in which flow occurs, and the cross-sectional area of the conduits at the wellbore. This report presents a complete development of constant-pressure well test methods for cylindrical flow and flow of arbitrary

  12. Review of Well Operator Files for Hydraulically Fractured Oil and Gas Production Wells: Well Design and Construction Fact Sheet

    Science.gov (United States)

    EPA reviewed a statistically representative sample of oil and gas production wells reported by nine service companies to help understand the role of well design and construction practices preventing pathways for subsurface fluid movement.

  13. Closure of shallow underground injection wells

    International Nuclear Information System (INIS)

    Veil, J.A.; Grunewald, B.

    1993-01-01

    Shallow injection wells have long been used for disposing liquid wastes. Some of these wells have received hazardous or radioactive wastes. According to US Environmental Protection Agency (EPA) regulations, Class IV wells are those injection wells through which hazardous or radioactive wastes are injected into or above an underground source of drinking water (USDW). These wells must be closed. Generally Class V wells are injection wells through which fluids that do not contain hazardous or radioactive wastes are injected into or above a USDW. Class V wells that are responsible for violations of drinking water regulations or that pose a threat to human health must also be closed. Although EPA regulations require closure of certain types of shallow injection wells, they do not provide specific details on the closure process. This paper describes the regulatory background, DOE requirements, and the steps in a shallow injection well closure process: Identification of wells needing closure; monitoring and disposal of accumulated substances; filling and sealing of wells; and remediation. In addition, the paper describes a major national EPA shallow injection well enforcement initiative, including closure plan guidance for wells used to dispose of wastes from service station operations

  14. The Importance of Resilience for Well-Being in Retirement

    Directory of Open Access Journals (Sweden)

    Cristiane Pimentel Nalin

    2015-08-01

    Full Text Available The increase in the elderly population has prompted research on retirement. This study investigated the importance of resilience, economic satisfaction, the length of retirement, and planning to well-being during retirement of 270 participants. The majority of this sample were men (64%, and the mean age was 65 years (SD = 5.7. The participants were retired members of 10 public and private organizations in Rio de Janeiro. Factor analysis and hierarchical regression were performed. The results showed that determined resilience (mastery, adaptability, confidence and perseverance and socioeconomic satisfaction were the main predictors of well-being in retirement and explained 28% of this model. The findings suggest that well-being in retirement is closely related to socioeconomic satisfaction and determined resilience. Additional research should address the importance of resilience for the well-being of retirees who are or not members of retirement associations. Resilience attitudes should be promoted in Retirement Education Programs.

  15. Huygens is alive and well, in space

    Science.gov (United States)

    1997-10-01

    "It all went very smoothly, " said Jonh Dodsworth, ESOC's flight operations Director, "We had the option to continue checks on 26 October in case of difficulty, but we don't need to. That's good news". ESOC established connection with the Huygens probe at 10:09 hrs, Central European Time on 23 October, using NASA's link to Cassini. Thanks to ESOC's new flight operations system, engineers and scientists responsible for the mission could check quite quickly that Huygens is alive and well in all respects. ESA's project management team, and representatives of the contractors who built Huygens, were able to report that the engineering system and subsystems are all performing nominally. The principal investigators from Europe and the USA, in charge of the six instruments on Huygens, were also present for the tests. Each experiment was checked for functionality : * HASI to analyse Titan's atmosphere and weather - DWE to measure wind speeds during the descent - GCMS to analyse chemical compounds on Titan - ACP to break down aerosols for chemical analysis - DISR to produce images and spectra of Titan - SSP to determine the nature of Titan's surface. "Six experiments, six green lights", said Jean-Pierre Lebreton, ESA's project scientist. The project manager for Huygens is Hamid Hassan. In Darmstadt he too declared himself pleased with the check-out of the Huygens systems, subsystems and instruments. "We will now let Huygens go back to sleep, except for the planned six monthly checkouts" Hassan said. "The probe will remain in that condition for the seven-year journey to Saturn. But we now have every reason to expect a successful outcome to this unprecedented mission".

  16. Registrar wellness in Botswana: Measuring burnout and identifying ways to improve wellness

    Directory of Open Access Journals (Sweden)

    K D Westmoreland

    2017-10-01

    Full Text Available Background. Burnout during registrar training is high, especially in resource-limited settings where stressors are intensified. Burnout leads to decreased quality of life for doctors, poor job and patient satisfaction, and difficulty retaining doctors. Objectives. Primary: to measure burnout among registrars working at Princess Marina Hospital in Gaborone, Botswana. Secondary: to determine factors contributing to burnout and identify potential wellness interventions. Methods. The validated Maslach Burnout Inventory was used to measure the degree of emotional exhaustion, depersonalisation and personal accomplishment. Work-related difficulties and potential wellness interventions were explored through multiple-choice and open-ended questions. Results. Of 40 eligible registrars, 20 (50% completed the survey. High levels of burnout were reported for emotional exhaustion in 65% (13/20, depersonalisation in 45% (9/20, and personal accomplishment in 35% (7/20 of registrars. A high degree of burnout was reported by 75% (15/20 of registrars in one or more domains. In the previous 7 days, registrars worked an average of 77 hours, took 1.5 overnight calls, slept 5.7 hours per night, and 53% (10/19 had ≥1 of their patients die. Five (25% registrars considered leaving Botswana to work in another country, which correlated with those with the highest degree of burnout. The most common frustrations included insufficient salary and limited medical resources. Suggested interventions included improved mentorship and wellness lectures. Conclusions. There is a high degree of burnout, especially emotional exhaustion, among registrars. Encouragingly, most registrars have a desire to work in Botswana after training. Future research on improving registrar wellness in low-resource settings is urgently needed.

  17. 30 CFR 250.1619 - Well records.

    Science.gov (United States)

    2010-07-01

    ... of operations, and environmental protection. (b) When drilling operations are suspended or... transmit copies of logs and charts developed by well-logging operations, directional-well surveys, and core...

  18. Dynamic Analysis procedure for fluid kicks in hydrocarbon wells

    Energy Technology Data Exchange (ETDEWEB)

    Gavignet, A

    1989-02-10

    A method for analyzing fluid kicks in wells during drilling, in order to assess the risk of a blowout, is presented. An automatic data acquisition and processing system is used to analyze pressure data from transient flow regimes of the drill slurries to determine the nature of the fluid in the borehole (gas, liquid, mixture). The method can be used even if the fluid flowing into the borehole is in an horizontal section of the well.

  19. STIMULATION TECHNOLOGIES FOR DEEP WELL COMPLETIONS

    Energy Technology Data Exchange (ETDEWEB)

    Stephen Wolhart

    2003-06-01

    The Department of Energy (DOE) is sponsoring a Deep Trek Program targeted at improving the economics of drilling and completing deep gas wells. Under the DOE program, Pinnacle Technologies is conducting a project to evaluate the stimulation of deep wells. The objective of the project is to assess U.S. deep well drilling & stimulation activity, review rock mechanics & fracture growth in deep, high pressure/temperature wells and evaluate stimulation technology in several key deep plays. Phase 1 was recently completed and consisted of assessing deep gas well drilling activity (1995-2007) and an industry survey on deep gas well stimulation practices by region. Of the 29,000 oil, gas and dry holes drilled in 2002, about 300 were drilled in the deep well; 25% were dry, 50% were high temperature/high pressure completions and 25% were simply deep completions. South Texas has about 30% of these wells, Oklahoma 20%, Gulf of Mexico Shelf 15% and the Gulf Coast about 15%. The Rockies represent only 2% of deep drilling. Of the 60 operators who drill deep and HTHP wells, the top 20 drill almost 80% of the wells. Six operators drill half the U.S. deep wells. Deep drilling peaked at 425 wells in 1998 and fell to 250 in 1999. Drilling is expected to rise through 2004 after which drilling should cycle down as overall drilling declines.

  20. Wellness Model of Supervision: A Comparative Analysis

    Science.gov (United States)

    Lenz, A. Stephen; Sangganjanavanich, Varunee Faii; Balkin, Richard S.; Oliver, Marvarene; Smith, Robert L.

    2012-01-01

    This quasi-experimental study compared the effectiveness of the Wellness Model of Supervision (WELMS; Lenz & Smith, 2010) with alternative supervision models for developing wellness constructs, total personal wellness, and helping skills among counselors-in-training. Participants were 32 master's-level counseling students completing their…

  1. Wellness of Counselor Educators: An Initial Look

    Science.gov (United States)

    Wester, Kelly L.; Trepal, Heather C.; Myers, Jane E.

    2009-01-01

    This study with 180 counselor educators showed that, overall, educators appeared to have high levels of wellness. However, differences related to academic rank, children in the home, gender, and marital status were found. Perceived stress and number of children were found to have a negative impact on wellness. Implications for wellness are…

  2. Gratitude and Adolescent Athletes' Well-Being

    Science.gov (United States)

    Chen, Lung Hung; Kee, Ying Hwa

    2008-01-01

    Two cross-sectional studies were conducted to examine the relationships between gratitude and athletes' well-being. Study 1 examines the relationship between dispositional gratitude and well-being, while Study 2 investigates the relationship between sport-domain gratitude and well-being. In Study 1, 169 Taiwanese senior high school athletes (M =…

  3. Student Well-being pada Remaja Jawa

    Directory of Open Access Journals (Sweden)

    Tri Na'imah

    2017-10-01

    Abstrak: Penelitian ini bertujuan untuk mendeskripsikan sumber student well-being pada remaja Jawa. Penelitian ini menggunakan pendekatan penelitian kuantitatif dan didukung dengan kualitatif. Lokasi penelitian di Banyumas dengan teknik cluster random sampling. Instrumen pengumpulan data menggunakan skala student well-being dan openquesioner sumber student well-being serta panduan wawancara. Analisis data kuantitatif menggunakan deskriptif. Hasil penelitian adalah: 1 Sumber-sumber student well-being adalah dimensi hubungan sosial, kognitif, emosi dan spiritual. 2 Faktor penghambat tercapainya student well-being adalah jika ada masalah dalam dimensi sosial, kognitif, emosi, fisik dan spiritual.

  4. Dry well storage of spent LWBR fuel

    International Nuclear Information System (INIS)

    Christensen, A.B.; Fielding, K.D.

    1985-01-01

    Recently, 50 dry wells were constructed at the Idaho Chemical Processing Plant (ICPP) to temporarily store the Light Water Breeder Reactor (LWBR) fuel. Over 400 dry wells of the same design are projected to be constructed in the next 5 yr at the ICPP to store unreprocessible fuels until a permanent repository becomes available. This summary describes the LWBR fuel storage dry wells and the enhancements made over the Peach Bottom fuel and Fermi blanket dry wells that have been in use for up to 4 yr. Dry well storage at the ICPP has historically been found to be a safe and efficient method of temporary fuel storage. The LWBR dry wells should be more reliable than the original dry wells and provide data not previously available

  5. Well-Being, Science, and Philosophy

    DEFF Research Database (Denmark)

    Rodogno, Raffaele

    2014-01-01

    Academic research on well-being is pursued in multiple disciplines and currently exploding. Governments are also interested in the topic, as witnessed by their recent efforts to develop statistical measures of progress that include well-being indicators. Combined, this interest opens the door...... to the fruitful application of well-being research to society. Research on well-being, however, is not always well integrated across the disciplines that purport to study it. In particular, there is insufficient communication between the empirical study of well-being, and its normative/conceptual study as pursued...... in philosophy. This state of affairs is lamentable, as it robs science and public policy of the expertise of philosophers, a desirable tool when evaluating empirical claims about well-being promotion. In this article, I examine the reasons for this lack of communication. In particular, I reject the view...

  6. Well-being at work--overview and perspective.

    Science.gov (United States)

    Schulte, Paul; Vainio, Harri

    2010-09-01

    This paper provides an overview of and perspective on the concept of well-being at work. Well-being is a term that reflects not only on one's health but satisfaction with work and life. Well-being is a summative concept that characterizes the quality of working lives, including occupational safety and health (OSH) aspects, and it may be a major determinant of productivity at the individual, enterprise and societal levels. Based on a review of the literature and a recent conference, we suggest a model linking workforce well-being, productivity, and population well-being. To appraise the validity of the model, we consider five questions: (i) is there a robust and usable definition of workplace well-being? (ii) have the variables that influence well-being been aptly described and can they be measured and used in risk assessments? (iii) what is the nature of evidence that well-being is linked to productivity? (iv) what is the state of knowledge on the effectiveness of interventions to promote workplace well-being? and (v) should interventions aimed at improving well-being at work focus on more than work-related factors?

  7. Laboratory implantation for well type ionization chambers calibration

    International Nuclear Information System (INIS)

    Vianello, E.A.; Dias, D.J.; Almeida, C.E. de

    1998-01-01

    The Radiological Science Laboratory is implanting a service for calibration of well type chambers by IAEA training program. The kerma rate in the air (mu Gy/h) of the linear Cs-137 reference source CDCS-J4 have been determined using a well type chamber Standard Imaging HDR-1000 model, which have been calibrated at Secondary Standard Laboratory Calibration of IAEA, whereas two HDR-1000 Plus chambers were calibrated too, following the same standards. The results were compared with Wisconsin University calibration certification and has demonstrated that well type ionization chamber calibration can be used in brachytherapy for several kinds of radionuclides. (Author)

  8. Double-well potential in annular Josephson junction

    International Nuclear Information System (INIS)

    Shaju, P.D.; Kuriakose, V.C.

    2004-01-01

    A double-well potential suitable for quantum-coherent vortex tunnelling can be created in an annular Josephson junction by inserting a microshort in the junction and by applying an in-plane dc magnetic field. Analysis shows that the intensity of the magnetic field determines the depth of the potential well and the strength of the microshort controls the potential barrier height while a dc bias across the junction tilts the potential well. At milli-Kelvin temperatures, the system is expected to behave as a quantum two-level system and may be useful in designing vortex qubits

  9. Potential hydrologic characterization wells in Amargosa Valley

    International Nuclear Information System (INIS)

    Lyles, B.; Mihevc, T.

    1994-09-01

    More than 500 domestic, agricultural, and monitoring wells were identified in the Amargosa Valley. From this list, 80 wells were identified as potential hydrologic characterization wells, in support of the US Department of Energy (DOE) Underground Test Area/Remedial Investigation and Feasibility Study (UGTA/RIFS). Previous hydrogeologic studies have shown that groundwater flow in the basin is complex and that aquifers may have little lateral continuity. Wells located more than 10 km or so from the Nevada Test Site (NTS) boundary may yield data that are difficult to correlate to sources from the NTS. Also, monitoring well locations should be chosen within the guidelines of a hydrologic conceptual model and monitoring plan. Since these do not exist at this time, recompletion recommendations will be restricted to wells relatively close (approximately 20 km) to the NTS boundary. Recompletion recommendations were made for two abandoned agricultural irrigation wells near the town of Amargosa Valley (previously Lathrop Wells), for two abandoned wildcat oil wells about 10 km southwest of Amargosa Valley, and for Test Well 5 (TW-5), about 10 km east of Amargosa Valley

  10. Japan's silver human resource centers and participant well-being.

    Science.gov (United States)

    Weiss, Robert S; Bass, Scott A; Heimovitz, Harley K; Oka, Masato

    2005-03-01

    Japan's Silver Human Resource Center (SHRC) program provides part-time, paid employment to retirement-aged men and women. We studied 393 new program participants and examined whether part-time work influenced their well-being or "ikigai." The participants were divided into those who had worked in SHRC-provided jobs in the preceding year, and those who had not. Gender-stratified regression models were fitted to determine whether SHRC employment was associated with increased well-being. For men, actively working at a SHRC job was associated with greater well-being, compared to inactive members. And men with SHRC jobs and previous volunteering experience had the greatest increase in well-being. Women SHRC job holders did not experience increased well-being at the year's end. The study concludes that there is justification for exploring the usefulness of a similar program for American retirees who desire post-retirement part-time work.

  11. The Interconnectedness between Well-Being and the Natural Environment

    Science.gov (United States)

    Ferreira, Johanna G.; Venter, Elizabeth

    2016-01-01

    The purpose of this research was to determine participants' perceptions of the positive influence of the natural environment on their well-being. Through a qualitative study, semistructured interviews were held with selected participants who enjoy activities in the natural environment. From the data analysis, particular themes emerged, namely the…

  12. Well-being in a Czech population sample

    Czech Academy of Sciences Publication Activity Database

    Kebza, V.; Kodl, M.; Šolcová, Iva; Kernová, V.

    2012-01-01

    Roč. 47, Suppl. 1 (2012), s. 414-414 ISSN 0020-7594. [International Congress of Psychology /30./. 22.07.2012-27.07.2012, Cape Town] R&D Projects: GA ČR GAP407/10/2410 Institutional support: RVO:68081740 Keywords : well-being * Czech population sample * determinants Subject RIV: AN - Psychology

  13. Well-log based prediction of thermal conductivity

    DEFF Research Database (Denmark)

    Fuchs, Sven; Förster, Andrea

    Rock thermal conductivity (TC) is paramount for the determination of heat flow and the calculation of temperature profiles. Due to the scarcity of drill cores compared to the availability of petrophysical well logs, methods are desired to indirectly predict TC in sedimentary basins. Most...

  14. KNBK for preparing well shafts for lowering casings

    Energy Technology Data Exchange (ETDEWEB)

    Sukhanov, V B; Shchukin, R K

    1981-01-01

    The experience of preparing a well for reinforcement in the association ''Kuban'morneftegaz orom'' is shown using traditional KNBK of increasing hardness after the end of drilling the interval and KNBK included in the above-bit area of the flywheel, UBTS or blade stabilizers whose outer diameter is determined by calculation, and guarantees preparation of the shaft for reinforcement during rotary drilling.

  15. Marketing as well as cultural aspects of logistic projects' realization ...

    African Journals Online (AJOL)

    pc

    2018-03-05

    Mar 5, 2018 ... product (in this case, the logistical) can reach the right person, at the lowest .... The necessity of determining the parameters of customers' service, which on the one .... strategy shaping as well as their final usage in order to ensure internal and ... The logistics and marketing concepts come together, thus.

  16. Anxiety, Locus of Control, Subjective Well Being and Knowledge of ...

    African Journals Online (AJOL)

    The present study determines a few differences between accident free drivers and drivers with a history of accidents. 30 public transport bus drivers with a record of road accidents were compared with 30 public transport drivers free of accidents on their knowledge of road rules an regulations, subjective well being, state and ...

  17. Nonintrusive methodology for wellness baseline profiling

    Science.gov (United States)

    Chung, Danny Wen-Yaw; Tsai, Yuh-Show; Miaou, Shaou-Gang; Chang, Walter H.; Chang, Yaw-Jen; Chen, Shia-Chung; Hong, Y. Y.; Chyang, C. S.; Chang, Quan-Shong; Hsu, Hon-Yen; Hsu, James; Yao, Wei-Cheng; Hsu, Ming-Sin; Chen, Ming-Chung; Lee, Shi-Chen; Hsu, Charles; Miao, Lidan; Byrd, Kenny; Chouikha, Mohamed F.; Gu, Xin-Bin; Wang, Paul C.; Szu, Harold

    2007-04-01

    We develop an accumulatively effective and affordable set of smart pair devices to save the exuberant expenditure for the healthcare of aging population, which will not be sustainable when all the post-war baby boomers retire (78 millions will cost 1/5~1/4 GDP in US alone). To design an accessible test-bed for distributed points of homecare, we choose two exemplars of the set to demonstrate the possibility of translation of modern military and clinical know-how, because two exemplars share identically the noninvasive algorithm adapted to the Smart Sensor-pairs for the real world persistent surveillance. Currently, the standard diagnoses for malignant tumors and diabetes disorders are blood serum tests, X-ray CAT scan, and biopsy used sometime in the physical checkup by physicians as cohort-average wellness baselines. The loss of the quality of life in making second careers productive may be caused by the missing of timeliness for correct diagnoses and easier treatments, which contributes to the one quarter of human errors generating the lawsuits against physicians and hospitals, which further escalates the insurance cost and wasteful healthcare expenditure. Such a vicious cycle should be entirely eliminated by building an "individual diagnostic aids (IDA)," similar to the trend of personalized drug, developed from daily noninvasive intelligent databases of the "wellness baseline profiling (WBP)". Since our physiology state undulates diurnally, the Nyquist anti-aliasing theory dictates a minimum twice-a-day sampling of the WBP for the IDA, which must be made affordable by means of noninvasive, unsupervised and unbiased methodology at the convenience of homes. Thus, a pair of military infrared (IR) spectral cameras has been demonstrated for the noninvasive spectrogram ratio test of the spontaneously emitted thermal radiation from a normal human body at 37°C temperature. This invisible self-emission spreads from 3 microns to 12 microns of the radiation wavelengths

  18. Understanding wellness center loyalty through lifestyle analysis.

    Science.gov (United States)

    Suresh, Satya; Ravichandran, Swathi; P, Ganesan

    2011-01-01

    Many changes taking place at a macro-level in Indian society along with the popularity of services that are native to India, such as Yoga and Ayurveda, have generated significant interest in wellness services. To assist wellness centers in gaining loyal clients, the goal of this study was to understand the influence of customer lifestyle factors on wellness center loyalty. The activities, interests, and opinions model was used to understand the lifestyles of wellness center clients. Data were collected from clients of five wellness centers. Regression results indicate that overworked individuals and those seeking a balance between work and family life would be the most loyal to wellness centers. Managerial implications of results are discussed.

  19. Stimulation Technologies for Deep Well Completions

    Energy Technology Data Exchange (ETDEWEB)

    None

    2003-09-30

    The Department of Energy (DOE) is sponsoring the Deep Trek Program targeted at improving the economics of drilling and completing deep gas wells. Under the DOE program, Pinnacle Technologies is conducting a study to evaluate the stimulation of deep wells. The objective of the project is to assess U.S. deep well drilling & stimulation activity, review rock mechanics & fracture growth in deep, high pressure/temperature wells and evaluate stimulation technology in several key deep plays. An assessment of historical deep gas well drilling activity and forecast of future trends was completed during the first six months of the project; this segment of the project was covered in Technical Project Report No. 1. The second progress report covers the next six months of the project during which efforts were primarily split between summarizing rock mechanics and fracture growth in deep reservoirs and contacting operators about case studies of deep gas well stimulation.

  20. Supporting wellness in adult online education

    Directory of Open Access Journals (Sweden)

    Jacklyn J. Thompson

    2014-02-01

    Full Text Available Online education cannot continue to grow at the current pace while ignoring a crucial component of campus support, wellness for adult online learners. This paper brings awareness to the concept of wellness as an important student support service in adult online education. It includes a summarized review of relevant literature and identifies specific wellness concerns of adult online learners. The paper also provides examples of how three American higher education institutions are addressing the issue of wellness promotion in online learning. It identifies areas for improvement in current wellness initiatives and offers recommended strategies for supporting adult online learner wellness to professional organizations, institutions, instructors, and distance learners.http://dx.doi.org/10.5944/openpraxis.6.1.100

  1. ADVANCED TECHNOLOGIES FOR STRIPPER GAS WELL ENHANCEMENT

    International Nuclear Information System (INIS)

    Charles M. Boyer II; Ronald J. MacDonald P.G.

    2001-01-01

    As part of Task 1 in Advanced Technologies for Stripper Gas Well Enhancement, Schlumberger-Holditch Reservoir Technologies (H-RT) has joined with two Appalachian Basin producers, Great Lakes Energy Partners, LLC, and Belden and Blake Corporation to develop methodologies for identification and enhancement of stripper wells with economic upside potential. These industry partners have provided us with data for more than 700 wells in northwestern Pennsylvania. Phase 1 goals of this project are to develop and validate methodologies that can quickly and cost-effectively identify wells with enhancement potential. We are currently in the final stages of developing and testing our new Microsoft(trademark) Access/Excel based software. We will be processing this well data and identifying potential candidate wells that can be used in Phase 2 to validate these methodologies. Preparation of the final technical report is underway

  2. ADVANCED TECHNOLOGIES FOR STRIPPER GAS WELL ENHANCEMENT

    International Nuclear Information System (INIS)

    Charles M. Boyer II; Ronald J. MacDonald P.G.

    2001-01-01

    As part of Task 1 in Advanced Technologies for Stripper Gas Well Enhancement, Schlumberger-Holditch Reservoir Technologies (H-RT) has joined with two Appalachian Basin producers, Great Lakes Energy Partners, LLC, and Belden and Blake Corporation to develop methodologies for identification and enhancement of stripper wells with economic upside potential. These industry partners have provided us with data for more than 700 wells in northwestern Pennsylvania. Phase 1 goals of this project are to develop and validate methodologies that can quickly and cost-effectively identify wells with enhancement potential. We have continued to enhance and streamline our software, and we are testing the final stages of our new Microsoft(trademark) Access/Excel based software. We are continuing to process this well data and are identifying potential candidate wells that can be used in Phase 2 to validate the new methodologies. In addition, preparation of the final technical report is underway

  3. Productivity and injectivity of horizontal wells

    Energy Technology Data Exchange (ETDEWEB)

    Aziz, Khalid

    2000-03-06

    One of the key issues addressed was pressure drop in long horizontal wells and its influence on well performance. Very little information is available in the literature on flow in pipes with influx through pipe walls. Virtually all of this work has been in small diameter pipes and with single-phase flow. In order to address this problem new experimental data on flow in horizontal and near horizontal wells have been obtained. Experiments were conducted at an industrial facility on typical 6 1/8 ID, 100 feet long horizontal well model. The new data along with available information in the literature have been used to develop new correlations and mechanistic models. Thus it is now possible to predict, within reasonable accuracy, the effect of influx through the well on pressure drop in the well.

  4. Role of well testing in civil engineering

    International Nuclear Information System (INIS)

    Banks, D.

    1981-01-01

    Purpose of well testing is to derive a value of the permeability of the geologic medium or to measure the velocity or quantity of fluid flow. The types of tests typically employed on civil engineering projects are simple borehole tests, packer or pressure tests in boreholes, permeameter tests, well pumping tests, and in-hole tests using well flow meters or tracer tests. New problem areas which demand new approaches are mentioned

  5. Feasibility of EGS Well Control Systems

    Energy Technology Data Exchange (ETDEWEB)

    Norann, Randy A [Perma Works LLC; Darlow, Richard [GeoTek Energy LLC

    2015-02-03

    This report covers the 8th major objective listed in Grant DE-FG36-08GO18185. This objective takes the information and experience gained from the development of 300°C well monitoring system and applies them to concepts envisioned for future geothermal well control systems supporting EGS power production. This report covers a large number of instrumentation and control system engineering issues for EGS wells while also providing a window into existing technology to address those issues.

  6. Spin Splitting in Different Semiconductor Quantum Wells

    International Nuclear Information System (INIS)

    Hao Yafei

    2012-01-01

    We theoretically investigate the spin splitting in four undoped asymmetric quantum wells in the absence of external electric field and magnetic field. The quantum well geometry dependence of spin splitting is studied with the Rashba and the Dresselhaus spin-orbit coupling included. The results show that the structure of quantum well plays an important role in spin splitting. The Rashba and the Dresselhaus spin splitting in four asymmetric quantum wells are quite different. The origin of the distinction is discussed in this work. (condensed matter: electronic structure, electrical, magnetic, and optical properties)

  7. Geothermal wells: a forecast of drilling activity

    Energy Technology Data Exchange (ETDEWEB)

    Brown, G.L.; Mansure, A.J.; Miewald, J.N.

    1981-07-01

    Numbers and problems for geothermal wells expected to be drilled in the United States between 1981 and 2000 AD are forecasted. The 3800 wells forecasted for major electric power projects (totaling 6 GWe of capacity) are categorized by type (production, etc.), and by location (The Geysers, etc.). 6000 wells are forecasted for direct heat projects (totaling 0.02 Quads per year). Equations are developed for forecasting the number of wells, and data is presented. Drilling and completion problems in The Geysers, The Imperial Valley, Roosevelt Hot Springs, the Valles Caldera, northern Nevada, Klamath Falls, Reno, Alaska, and Pagosa Springs are discussed. Likely areas for near term direct heat projects are identified.

  8. General well function for soil vapor extraction

    Science.gov (United States)

    Perina, Tomas

    2014-04-01

    This paper develops a well function applicable to extraction of groundwater or soil vapor from a well under the most common field test conditions. The general well function (Perina and Lee, 2006) [12] is adapted to soil vapor extraction and constant head boundary at the top. For groundwater flow, the general well function now applies to an extraction well of finite diameter with uniform drawdown along the screen, finite-thickness skin, and partially penetrating an unconfined, confined, and leaky aquifer, or an aquifer underneath a reservoir. With a change of arguments, the model applies to soil vapor extraction from a vadose zone with no cover or with leaky cover at the ground surface. The extraction well can operate in specified drawdown (pressure for soil vapor) or specified flowrate mode. Frictional well loss is computed as flow-only dependent component of the drawdown inside the extraction well. In general case, the calculated flow distribution is not proportional to screen length for a multiscreen well.

  9. Well-faring towards Uncertain Futures

    DEFF Research Database (Denmark)

    Frederiksen, Martin Demant; Pedersen, Susanne Højlund; Meinert, Lotte

    2011-01-01

    The article explores how societal contexts create different possibilities for faring well towards the future for young marginalized people. Based on a comparative project including ethnographies from Brazil, Uganda, Georgia and Denmark the authors discuss well-faring as a time-oriented process...... based on individual as well as societal conditions. The article argues that in order to understand well-faring it is important to analyse how visions and strategies for the future are shaped in relation to local circumstances. Whether it is possible to envision the future as hopeless or hopeful...

  10. Stimulation Technologies for Deep Well Completions

    Energy Technology Data Exchange (ETDEWEB)

    Stephen Wolhart

    2005-06-30

    The Department of Energy (DOE) is sponsoring the Deep Trek Program targeted at improving the economics of drilling and completing deep gas wells. Under the DOE program, Pinnacle Technologies conducted a study to evaluate the stimulation of deep wells. The objective of the project was to review U.S. deep well drilling and stimulation activity, review rock mechanics and fracture growth in deep, high-pressure/temperature wells and evaluate stimulation technology in several key deep plays. This report documents results from this project.

  11. On the Importance of Well-Being

    DEFF Research Database (Denmark)

    Rodogno, Raffaele

    2008-01-01

    central theories in normative ethics. I will focus on Scanlon’s discussion in particular because it affords us with two criteria for the assessment of the importance for a person of a value-concept such as well-being. I will claim that much of Scanlon’s case rests on the idea that well......Many among philosophers and non-philosophers would claim that well-being is important in moral theory because it is important to the individual whose well-being it is. The exact meaning of this claim, however, is in need of clarification. Having provided that, I will present a charge against it...

  12. Sand control systems used in completing wells

    Directory of Open Access Journals (Sweden)

    Gabriel Wittenberger

    2005-12-01

    Full Text Available Expandable Tubular Technology is transforming the face of well completion and construction. This technology provides: a substantially higher hydrocarbon production rates from the reservoir, a reduced well drilling and construction costs, new possibilities for previously unreachable or uneconomic reservoirs, and step a change towards the single diameter well. ESS (Expandable Sand Screen has an unrivalled performance worldwide for delivering a reliable sand control in a wide range of applications. Well costs typically cut by over 20 %, and the productivity increases up to 70 %.

  13. Health Promotion and Wellness Staffing Methods

    National Research Council Canada - National Science Library

    Thomsen, Kim

    1999-01-01

    .... Health promotion and wellness programs positively influence the military mission readiness and force protection, increase productivity, reduce health care costs, minimize illness and non-battle...

  14. The Determinants of Occupational Therapy Students' Attitudes: Mindfulness and Well-Being

    Science.gov (United States)

    Akyurek, Gokcen; Kars, Sinem; Bumin, Gonca

    2018-01-01

    There are 12.5 million people with disabilities in Turkey according to the research conducted in recent years. It is an unquestionable fact that attitudes and behaviors towards people with disabilities. Their lives and harmony with the society describe social interactions. The awareness and attitudes of health professionals towards people with…

  15. Rapid determination of nanowires electrical properties using a dielectrophoresis-well based system

    Science.gov (United States)

    Constantinou, Marios; Hoettges, Kai F.; Krylyuk, Sergiy; Katz, Michael B.; Davydov, Albert; Rigas, Grigorios-Panagiotis; Stolojan, Vlad; Hughes, Michael P.; Shkunov, Maxim

    2017-03-01

    The use of high quality semiconducting nanomaterials for advanced device applications has been hampered by the unavoidable growth variability of electrical properties of one-dimensional nanomaterials, such as nanowires and nanotubes, thus highlighting the need for the characterization of efficient semiconducting nanomaterials. In this study, we demonstrate a low-cost, industrially scalable dielectrophoretic (DEP) nanowire assembly method for the rapid analysis of the electrical properties of inorganic single crystalline nanowires, by identifying key features in the DEP frequency response spectrum from 1 kHz to 20 MHz in just 60 s. Nanowires dispersed in anisole were characterized using a three-dimensional DEP chip (3DEP), and the resultant spectrum demonstrated a sharp change in nanowire response to DEP signal in 1-20 MHz frequency range. The 3DEP analysis, directly confirmed by field-effect transistor data, indicates that nanowires of higher quality are collected at high DEP signal frequency range above 10 MHz, whereas lower quality nanowires, with two orders of magnitude lower current per nanowire, are collected at lower DEP signal frequencies. These results show that the 3DEP platform can be used as a very efficient characterization tool of the electrical properties of rod-shaped nanoparticles to enable dielectrophoretic selective deposition of nanomaterials with superior conductivity properties.

  16. A global analysis of recent experimental results: How well determined are the parton distribution functions?

    International Nuclear Information System (INIS)

    Morfin, J.G.

    1990-08-01

    Following is a brief summary of the results of an analysis of experimental data performed to extract the patron distribution functions. In contrast to other global analyses, this study investigated how the fit results depend on: Experimental Systematic Errors; Kinematic Cuts on the Analyzed Data and Choice of Initial Functional Forms, with a prime goal being a close look at the range of low-x behavior allowed by data. This is crucial for predictions for the SSC/LHC, HERA, and even at Tevatron Collider energies. Since all details can be found in the just released Fermilab preprint Parton Distributions from a Global QCD Analysis of Deep Inelastic Scattering and Lepton-Pair Production by J. G. M. and Wu-Ki Tung, this summary will be only a brief outline of major results. 11 refs., 13 figs

  17. Connection between tectonic stresses and well fracturing data

    Energy Technology Data Exchange (ETDEWEB)

    Scheidegger, A E [Imperial Oil Res. Lab., Calgary, CA

    1961-01-01

    Theoretical considerations of hydraulic well fracturing normally utilize a model in which the borehole is assumed to be a cylinder of infinite length. This leads to treatment of the induced stress state in two dimensions. The two-dimensional model is obviously an oversimplification. Therefore, a three-dimensional model is proposed in which the well pressure is assumed to be equivalent to a spherical pressure center. The bottom hole pressure during fracturing is determined by 4 variables; i.e., the 3 principal geological stresses and the rock strength. The response to fracturing is determined primarily by the prevailing stress state and to a lesser degree by the rock strength. The fracture condition is formulated and the model is used in the calculation of geological stresses from well data.

  18. CEMENT SLURRIES FOR GEOTHERMAL WELLS CEMENTING

    Directory of Open Access Journals (Sweden)

    Nediljka Gaurina-Međimurec

    1994-12-01

    Full Text Available During a well cementing special place belongs to the cement slurry design. To ensure the best quality of cementing, a thorough understanding of well parameters is essential, as well as behaviour of cement slurry (especially at high temperatures and application of proven cementing techniques. Many cement jobs fail because of bad job planning. Well cementing without regarding what should be accomplished, can lead to well problems (channels in the cement, unwanted water, gas or fluid production, pipe corrosion and expensive well repairs. Cementing temperature conditions are important because bot-tomhole circulating temperatures affect slurry thickening time, arheology, set time and compressive strength development. Knowing the actual temperature which cement encounters during placement allows the selection of proper cementing materials for a specific application. Slurry design is affected by well depth, bottom hole circulating temperature and static temperature, type or drilling fluid, slurry density, pumping time, quality of mix water, fluid loss control, flow regime, settling and free water, quality of cement, dry or liquid additives, strength development, and quality of the lab cement testing and equipment. Most Portland cements and Class J cement have shown suitable performances in geot-hermal wells. Cement system designs for geothermal wells differ from those for conventional high temperature oil and gas wells in the exclusive use of silica flour instead of silica sand, and the avoidance of fly ash as an extender. In this paper, Portland cement behaviour at high temperatures is described. Cement slurry and set cement properties are also described. Published in literature, the composition of cement slurries which were tested in geothermal conditions and which obtained required compressive strength and water permeability are listed. As a case of our practice geothermal wells Velika Ciglena-1 and Velika Ciglena-la are described.

  19. Schools Shape Up with Employee Wellness.

    Science.gov (United States)

    Kaldy, Joanne

    1985-01-01

    Increasingly, schools are beginning employee wellness programs, which encourage employees to make personal commitments to life-style changes that will increase their productivity and generally improve their health. This article provides an introduction to wellness programs, lists advantages, and tells how to start one and make it work. (DCS)

  20. Harmonic pulse testing for well performance monitoring

    NARCIS (Netherlands)

    Fokker, Peter A.; Salina Borello, Eloisa; Verga, Francesca; Viberti, Dario

    2018-01-01

    Harmonic testing was developed as a form of well testing that can be applied during ongoing production or injection operations, as a pulsed signal is superimposed on the background pressure trend. Thus no interruption of well and reservoir production is needed before and during the test. If the

  1. Measuring Well-Being and Progress

    NARCIS (Netherlands)

    L. D'Acci (Luca)

    2010-01-01

    textabstractWell-being is becoming a concept which is more and more involved in any world development consideration. A large amount of work is being carried out to study measurements of well-being, including a more holistic vision on the development and welfare of a country. This paper proposes

  2. Environmental monitoring well housing and protection method

    International Nuclear Information System (INIS)

    Kenner, D.A.

    1991-01-01

    This patent describes a method for housing and protecting an environmental monitoring well having a well pipe disposed in a well bore with an upper and extending toward the surface of the ground. It comprises: placing an enclosure ins aid well bore around the upper end of the well pipe, the enclosure being of unitary construction and having an upper opening, a lower opening and an inwardly-protruding ledge between the upper opening and the lower opening, placing sealing means in the well bore between the outter surface of the well pipe and the inner surface of the enclosure, the sealing means being a composition distinct from the well pipe; placing on the ledge a flexible gasket having a shape substantially identical to the shape of the surface of the ledge; placing on the gasket within the enclosure a cover having an upper surface and a peripheral shape substantially identical to the shape of the interior of the enclosure, and attaching the cover to the enclosure so that the upper opening of the enclosure and the upper surface of the cover are substantially flush with the surface of the ground

  3. Geothermal Reservoir Well Stimulation Program: technology transfer

    Energy Technology Data Exchange (ETDEWEB)

    1980-05-01

    Each of the following types of well stimulation techniques are summarized and explained: hydraulic fracturing; thermal; mechanical, jetting, and drainhole drilling; explosive and implosive; and injection methods. Current stimulation techniques, stimulation techniques for geothermal wells, areas of needed investigation, and engineering calculations for various techniques. (MHR)

  4. Well-Founded Belief and Perceptual Justification

    DEFF Research Database (Denmark)

    Broncano-Berrocal, Fernando

    2016-01-01

    According to Alan Millar, justified beliefs are well-founded beliefs. Millar cashes out the notion of well-foundedness in terms of having an adequate reason to believe something and believing it for that reason. To make his account of justified belief compatible with perceptual justification he...

  5. Conductance in double quantum well systems

    International Nuclear Information System (INIS)

    Hasbun, J E

    2003-01-01

    The object of this paper is to review the electronic conductance in double quantum well systems. These are quantum well structures in which electrons are confined in the z direction by large band gap material barrier layers, yet form a free two-dimensional Fermi gas within the sandwiched low band gap material layers in the x-y plane. Aspects related to the conductance in addition to the research progress made since the inception of such systems are included. While the review focuses on the tunnelling conductance properties of double quantum well devices, the longitudinal conductance is also discussed. Double quantum well systems are a more recent generation of structures whose precursors are the well known double-barrier resonant tunnelling systems. Thus, they have electronic signatures such as negative differential resistance, in addition to resonant tunnelling, whose behaviours depend on the wavefunction coupling between the quantum wells. As such, the barrier which separates the quantum wells can be tailored in order to provide better control of the device's electronic properties over their single well ancestors. (topical review)

  6. Structural Validation of the Holistic Wellness Assessment

    Science.gov (United States)

    Brown, Charlene; Applegate, E. Brooks; Yildiz, Mustafa

    2015-01-01

    The Holistic Wellness Assessment (HWA) is a relatively new assessment instrument based on an emergent transdisciplinary model of wellness. This study validated the factor structure identified via exploratory factor analysis (EFA), assessed test-retest reliability, and investigated concurrent validity of the HWA in three separate samples. The…

  7. Transparency and Oversight in Local Wellness Policies

    Science.gov (United States)

    Chriqui, Jamie F.; Chaloupka, Frank J.

    2011-01-01

    Background: Advocates have called for increased wellness policy transparency and oversight through the use of health advisory councils. This study examines (1) wellness policy transparency, (2) advisory council requirements, (3) factors associated with each, and (4) whether transparency or advisory council requirements are indicative of a stronger…

  8. Research on Preventive Wellness in the Netherlands

    NARCIS (Netherlands)

    Jacques Vork; dr. Angelique Lombarts

    2013-01-01

    Chapter 39 in Health, Tourism and Hospitality: Spas, Wellness and Medical Travel, 2nd Edition takes an in-depth and comprehensive look at the growing health, wellness and medical tourism sectors in a global context. The book analyses the history and development of the industries, the way in which

  9. Hospital Organization, Administration and Wellness Programming.

    Science.gov (United States)

    Fleming, Jeanne Hmura

    1984-01-01

    Hospital organization, administration and planning, and implementation program procedures are reviewed in this article. Hospitals and medical centers are changing their strategies in the area of wellness programming since they offer the appropriate facilities for these programs. Various types of wellness programs currently being promoted are…

  10. Workplace Wellness Programs to Promote Cancer Prevention.

    Science.gov (United States)

    Soldano, Sharon K

    2016-08-01

    To define the diversity of and business case for workplace wellness programs, highlight best practices for a comprehensive health promotion program, and describe the opportunities for employees to become wellness advocates. Current literature and articles published between 2010 and 2016, Centers for Disease Control and Prevention, Health Enhancement Research Organization, National Business Group on Health, Wellness Councils of America, best practice program guidelines and internet resources. Employers are increasingly affected by rising health care costs and epidemic rates of obesity and associated chronic diseases within the workforce. Employers who offer workplace wellness programs can contribute to the overall health and well-being of their employees, improve employee productivity and retention, and reduce absenteeism and health care costs. Employees participating in workplace wellness programs can reduce their health risks and serve as health promotion advocates. Nurses can lead by example by participating in their workplace wellness programs, serving as an advocate to influence their employers and colleagues, and educating their patients regarding the benefits of workplace wellness programs. Copyright © 2016 Elsevier Inc. All rights reserved.

  11. Transient well flow in vertically heterogeneous aquifers.

    NARCIS (Netherlands)

    Hemker, C.J.

    1999-01-01

    A solution for the general problem of computing well flow in vertically heterogeneous aquifers is found by an integration of both analytical and numerical techniques. The radial component of flow is treated analytically; the drawdown is a continuous function of the distance to the well. The

  12. Conceptualising well-being for autistic persons.

    Science.gov (United States)

    Robeyns, Ingrid

    2016-06-01

    In the philosophy of well-being, there is hardly anything written on the lives of people with autism or on the question whether existing philosophical theories of well-being are suited for understanding how well the lives of autistic persons are going. This paper tries to make some progress towards filling this gap. I start by giving a concise account of autism, which highlights the huge heterogeneity among autistics. I discuss some basic features of autism, ask whether there are good reasons why we would need an account of well-being specifically for autistics and what philosophical well-being research could learn from being informed by autistic experiences and phenomenology. I then investigate to what extent the capability approach gives us a helpful theory of well-being for autistics, and what looking through an autism-lens can contribute to the further development of the capabilitarian well-being. In particular, I show that some capabilities that are crucially relevant for autistics are also relevant for the lives of non-autistic people. The final part of the paper looks at an important difficulty in using the capabilitarian account of well-being for autistics, namely: should the normative focus be on achievements (functionings) or real opportunities (capabilities)? Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

  13. Studying employee well-being : Moving forward

    NARCIS (Netherlands)

    Ilies, R.; Pluut, Helen; Aw, S.S.Y.

    2015-01-01

    In this article, we attempt to integrate the commentaries to our position paper on intra-individual models of employee well-being (EWB; Ilies, R., Aw, S. S. Y., & Pluut, H. (2015). Intraindividual models of employee well-being: What have we learned and where do we go from here? European Journal of

  14. Well-covered graphs and factors

    DEFF Research Database (Denmark)

    Randerath, Bert; Vestergaard, Preben D.

    2006-01-01

    A maximum independent set of vertices in a graph is a set of pairwise nonadjacent vertices of largest cardinality α. Plummer defined a graph to be well-covered, if every independent set is contained in a maximum independent set of G. Every well-covered graph G without isolated vertices has a perf...

  15. Overview - Be Smart. Be Well. STD Videos

    Centers for Disease Control (CDC) Podcasts

    This video, produced by Be Smart. Be Well., raises awareness of Sexually Transmitted Diseases (STDs): 1) What are they? 2) Why they matter? and, 3) What can I do about them? Footage courtesy of Be Smart. Be Well., featuring CDC's Dr. John Douglas, Division of Sexually Transmitted Disease Prevention.

  16. Supporting Wellness in Adult Online Education

    Science.gov (United States)

    Thompson, Jacklyn J.; Porto, Stella C. S.

    2014-01-01

    Online education cannot continue to grow at the current pace while ignoring a crucial component of campus support, wellness for adult online learners. This paper brings awareness to the concept of wellness as an important student support service in adult online education. It includes a summarized review of relevant literature and identifies…

  17. The Anatomy of Subjective Well-being

    NARCIS (Netherlands)

    Praag, van B.M.S.; Frijters, P.; Ferrer-i-Carbonell, A.

    2002-01-01

    This paper contributes to the literature on Subjective Well-Being by taking into account different aspects of life, called domains, such as health, financial situation, job, leisure, housing, and environment. We postulate a two-Iayer model where individual total Subjective Well-Being depends on the

  18. Autonomous teamwork and psychological well-being

    NARCIS (Netherlands)

    Mierlo, van H.; Rutte, C.G.; Seinen, B.; Kompier, M.A.J.

    2001-01-01

    Few studies investigated the assumed positive effects of autonomous groups on individual psychological well-being. In the present study we investigated the hypotheses that (1) group autonomy is positively related to psychological well-being, (2) this relationship is mediated by individual autonomy,

  19. Synthesis of mordenite in geothermal wells

    Energy Technology Data Exchange (ETDEWEB)

    Konoya, M [Geological Survey of Hokkaido, Japan

    1970-03-01

    A study of the possible synthesis of mordenite in geothermal wells was conducted. In 1966 as part of a series of exploratory geothermal investigations, a 500 m well was drilled which had a temperature at 250 m of 120/sup 0/C. The well has constant temperature and constant pressure and has been used to study alteration. Specimens which were placed in the well were tested for mordenite. Mordenite was synthesized when Benki clay and a 10% KOH solution were placed in a Teflon tube at 250 m (120/sup 0/C and 22.3 kg/cm/sup 2/) for three months. No mordenite was synthesized when obsidian powder was used. These results indicate the possibility of synthesis of zeolite and clay minerals in geothermal wells. Two figures and four tables are provided.

  20. Can Facebook use induce well-being?

    Science.gov (United States)

    Liu, Chia-Yi; Yu, Chia-Ping

    2013-09-01

    Over the past few decades, the widespread phenomenon of Internet abuse has gained attention from the public, academia, and the media. In a departure from this negative viewpoint, however, researchers and educators have devoted considerable effort in attempting to understand the influence of online communication on people's psychological well-being. This study focuses specifically on Facebook, and proposes a research model to examine the relationships among Facebook use, online social support, general social support, and psychological well-being. Our results show that using Facebook helped college students to obtain online social support, and that online social support is an extension of general social support. However, although general social support contributes to well-being, online social support appears to have little direct effect on well-being. The relationship between online social support and well-being is mediated through the factor of general social support.

  1. Pair production by a deep potential well

    International Nuclear Information System (INIS)

    Nikishov, A.I.

    1987-01-01

    Solutions are obtained for the Dirac and Klein-Gordon equations with a one-dimensional symmetric potential well, having a flat bottom and arbitrary depth, width and field strengths at the walls. Quasi-stationary solutions describing a pair production by the well and the inverse process are obtained. It is shown that if the pair production probability is small, it is expressed in terms of the pair production probability on one wall and the particle oscillation frequency in the well. If the well has a supercritical depth, the lower continuum contains positron resonance scattering states at energies close to the real part of the quasi-stationary level energy (Zeldovich's effect). The qualitative dependence of the positron penetration coefficient through the wall on its energy and the well depth is an evidence that the solution of the so called one-particle Dirac equation describes in fact a many-particle system with a charge of 0 or 1

  2. Psychological wellness constructs: relationships and group differences

    Directory of Open Access Journals (Sweden)

    Liezl Gropp

    2007-02-01

    Full Text Available The objective of the study was to examine the relationships between several constructs that were hypothesised to be components underlying psychological wellness and to establish whether there were differences between managerial and non-managerial groups or between Black and White groups in respect of the wellness variables. The Personal Orientation Inventory (POI, Locus of Control Inventory (LOC, Sense of Coherence Scale (SOC, and the Bar-On EQ-I were administered to a random sample of 200 employees of a financial services company. Statistically significant differences were found between the groups on several of the wellness variables with the manager and White groups obtaining higher scores on these variables than their comparison groups. However, in respect of External Locus of Control, the non-manager and Black groups obtained the higher scores. Factor analytic results demonstrated that the wellness variables clustered in two correlated factors (r = 0,43 labeled psychological wellness and self-actualisation.

  3. Geopressured-geothermal well activities in Louisiana

    International Nuclear Information System (INIS)

    John, C.J.

    1992-10-01

    Since September 1978, microseismic networks have operated continuously around US Department of Energy (DOE) geopressured-geothermal well sites to monitor any microearthquake activity in the well vicinity. Microseismic monitoring is necessary before flow testing at a well site to establish the level of local background seismicity. Once flow testing has begun, well development may affect ground elevations and/or may activate growth faults, which are characteristic of the coastal region of southern Louisiana and southeastern Texas where these geopressured-geothermal wells are located. The microseismic networks are designed to detest small-scale local earthquakes indicative of such fault activation. Even after flow testing has ceased, monitoring continues to assess any microearthquake activity delayed by the time dependence of stress migration within the earth. Current monitoring shows no microseismicity in the geopressured-geothermal prospect areas before, during, or after flow testing

  4. Multiple group membership and well-being

    DEFF Research Database (Denmark)

    Sønderlund, Anders L.; Morton, Thomas A.; Ryan, Michelle K.

    2017-01-01

    multiple group membership and well-being, but only for individuals high in SIC. This effect was mediated by perceived identity expression and access to social support. Study 2 (N = 104) also found that multiple group memberships indirectly contributed to well-being via perceived identity expression......A growing body of research points to the value of multiple group memberships for individual well-being. However, much of this work considers group memberships very broadly and in terms of number alone. We conducted two correlational studies exploring how the relationship between multiple group...... and social support, as well as identity compatibility and perceived social inclusion. But, in this study the relationship between multiple group memberships and well-being outcomes was moderated by the perceived value and visibility of group memberships to others. Specifically, possessing multiple, devalued...

  5. Prediction of temperature profile in oil wells

    International Nuclear Information System (INIS)

    Laderion, A.

    2000-01-01

    A mathematical model has been developed to predict the temperature distribution in well bores either offshore or inshore. It is incorporate the different activities encountered during drilling operations. Furthermore, the effect of drill collar and casings and bit rotating in a well during completion has been considered. The two dimensional approach is presented in the form of a computer program which is adopted for solution of the finite difference equations describing the heat transmission in the well bore in the form of a direct solution technique. The power law model has been selected for drilling mud and its indices have been calculated. Comparing measured data, recorded for a period of 82 hours during different activities in a drilling operation for 15/20 A-4, an exploration well in the Central North Sea with calculated results, show there is a good agreement between the prediction and measured temperatures in the well bore

  6. Staying Well in a Sea of Harm.

    Science.gov (United States)

    Deutsch, Ellen S

    2018-03-01

    Physician psychological wellness is an emergent outcome resulting from dynamic interactions among complex conditions. We may enhance opportunities for physician wellness by applying principles developed to improve another emergent outcome: patient safety. The Safety I approach to patient safety focuses on "what went wrong" and considers humans a liability. Safety II is a powerful complementary approach that focuses on "what went right" and values human creativity. These contrasting perspectives are described in the context of patient safety, but the underlying principles have relevance for physician psychological wellness. We can create conditions that interfere with wellness and conditions that support wellness. We can learn from exploring and reinforcing successes and improving routine processes; together, these approaches may have a greater cumulative positive impact than just addressing problems. In addition to learning from failures, there is much we can learn from success.

  7. Groundwater monitoring for deep-well injection

    International Nuclear Information System (INIS)

    Chia, Y.; Chiu, J.

    1994-01-01

    A groundwater monitoring system for detecting waste migration would not only enhance confidence in the long-term containment of injected waste, but would also provide early warnings of contamination for prompt responses to protect underground sources of drinking water (USDWs). Field experiences in Florida have demonstrated monitoring water quality and fluid pressure changes in overlying formations is useful in detecting the upward migration of injected waste. Analytical and numerical solutions indicate changes in these two monitoring parameters can vary on the basis of hydrogeologic characteristics, operation conditions, and the distances from the injection well to the monitoring wells and to the preferential hydrologic conduits. To detect waste migration through defects around the wellbore or the leaky containment interval, groundwater monitoring wells should be placed as close as possible to an injection well. In the vertical direction, a monitoring well completed in a permeable interbed within the containment interval is expected to have the highest potential for detecting upward migration. Another acceptable horizon for groundwater monitoring is the lower portion of the buffer brine aquifer immediately above the containment interval. Monitoring wells in USDWs may be needed when waste has been detected in deeper formations or when leakage out of well casings poses a concern. A monitoring well open to the injection interval is of little value in alleviating the concerns of long-term upward migration. Moreover, the installation of the well could create additional preferential pathways. Complications in groundwater monitoring may arise at existing injection sites, especially with prior releases. It is also important to recognize that monitoring in the vicinity of the wellbore may not be effective for detecting waste migration through unidentified unplugged wells or undetected transmissive fractures

  8. Calculating Production Rate of each Branch of a Multilateral Well Using Multi-Segment Well Model: Field Example

    Directory of Open Access Journals (Sweden)

    Mohammed S. Al-Jawad

    2017-11-01

    Full Text Available Multilateral wells require a sophisticated type of well model to be applied in reservoir simulators to represent them. The model must be able to determine the flow rate of each fluid and the pressure throughout the well. The production rate calculations are very important because they give an indication about some main issues associated with multi-lateral wells such as one branch may produce water or gas before others, no production rate from one branch, and selecting the best location of a new branch for development process easily. This paper states the way to calculate production rate of each branch of a multilateral well-using multi-segment well model. The pressure behaviour of each branch is simulated dependent on knowing its production rate. This model has divided a multi-lateral well into an arbitrary number of segments depending on the required degree of accuracy and run time of the simulator. The model implemented on a field example (multi-lateral well HF-65ML in Halfaya Oil Field/Mishrif formation. The production rate and pressure behaviour of each branch are simulated during the producing interval of the multilateral well. The conclusion is that production rate of the main branch is slightly larger than a lateral branch.

  9. Airborne geoid determination

    DEFF Research Database (Denmark)

    Forsberg, René; Olesen, Arne Vestergaard; Bastos, L.

    2000-01-01

    Airborne geoid mapping techniques may provide the opportunity to improve the geoid over vast areas of the Earth, such as polar areas, tropical jungles and mountainous areas, and provide an accurate "seam-less" geoid model across most coastal regions. Determination of the geoid by airborne methods...... relies on the development of airborne gravimetry, which in turn is dependent on developments in kinematic GPS. Routine accuracy of airborne gravimetry are now at the 2 mGal level, which may translate into 5-10 cm geoid accuracy on regional scales. The error behaviour of airborne gravimetry is well......-suited for geoid determination, with high-frequency survey and downward continuation noise being offset by the low-pass gravity to geoid filtering operation. In the paper the basic principles of airborne geoid determination are outlined, and examples of results of recent airborne gravity and geoid surveys...

  10. Well-being, capabilities and philosophical practice

    Directory of Open Access Journals (Sweden)

    Bulatović Aleksandra

    2014-01-01

    Full Text Available The concept of well being has become the main criterion to assess quality of life in contemporary society. Individual well-being describes the individual quality of life, while social well-being refers to quality of life in a society. Given that well-being has a multitude of dimensions, a unique definition of it is elusive to scholars. In this article social well-being is conceptualised as a dynamic process within the context set by social integration as one’s relationship to society and the community. This includes the quality of interaction between the individual and society and one’s ‘social actualisation’ understood as the realisation of one’s social capacities. Social actualisation also involves one’s ability to influence social processes and to benefit from social cohesion, which consists, in any society, of the quality, organisation and functioning of the social world. Hence the ability to impact society is an integral part of individual well being. This paper suggests that philosophical practice as a new paradigm in the humanities holds out promise for the improvement of both individual and social well-being. [Projekat Ministarstva nauke Republike Srbije, br. 47011: Crime in Serbia: Phenomenology, Risks and Possibilities for Social Intervention

  11. Hanford well remediation and decommissioning plan

    International Nuclear Information System (INIS)

    Ledgerwood, R.K.

    1993-01-01

    Protection of Hanford Site groundwater resources and assessment of the effects of their use or contamination upon public safety are required by federal and state regulations and U.S. Department of Energy (DOE) policy, (DOE, 1989). Compliance with constraints applicable to the use of existing wells requires assessment as to the suitability for use and needs for rehabilitation, remediation or decommissioning of existing groundwater wells and other boreholes potentially affecting aquifers beneath the Hanford Site. Approximately 3,500 groundwater wells and vadose zone boreholes had been drilled on the Hanford Site prior to 1989, over 2,900 still exist. Most of these boreholes were drilled prior to 1987 and do not conform to presently accepted construction standards intended to protect groundwater resources. Approximately 260 wells have been installed since 1987. These wells were constructed to current standards for well construction which mandate seals between the permanent casing and the formation to prevent potential migration of contaminated liquid. Several programs presently construct and/or utilize existing and newly drilled wells to provide characterization and groundwater monitoring data. The programs are summarized

  12. Pair formation by a deep potential well

    International Nuclear Information System (INIS)

    Nikishov, A.I.

    1987-01-01

    We obtain solutions of the Dirac and Klein-Gordon equations for a symmetric one-dimensional potential well with a flat bottom, and arbitrary depth, width, and field strength at the walls. Quasistationary solutions are found describing pair creation by the well, and the inverse process. It is shown that when the probability of pair creation by the well is small, it can be expressed in terms of the probability of pair creation at one of the walls and the oscillation frequency of the particle in the well. Among the states of the lower continuum, there are positron resonance scattering states for supercritical well depths. The energies of these states are close to the real part of the quasistationary energy level (the Zel'dovich effect). The qualitative dependence of the transmission coefficient of the positron through the well on its energy and the well width supports the idea that the solution of the so-called one-particle Dirac equation describes a many-particle system with charge 0 or 1

  13. Impact of peer delivered wellness coaching.

    Science.gov (United States)

    Swarbrick, Margaret; Gill, Kenneth J; Pratt, Carlos W

    2016-09-01

    People receiving publicly funded behavioral health services for severe mental disorders have shorter lifespans and significantly impaired health-related quality of life compared to the general population. The aim of this article was to explore how peer wellness coaching (PWC), a manualized approach to pursue specific physical wellness goals, impacted goal attainment and overall health related quality of life. Deidentified archival program evaluation data were examined to explore whether peer delivered wellness coaching had an impact on 33 service recipients with regard to goal attainment and health-related quality of life. Participants were served by 1 of 12 wellness coach trainees from a transformation transfer initiative grant who had been trained in the manualized approach. Coaching participants and their coaches reported significant progress toward the attainment of individually chosen goals, 2 to 4 weeks after establishing their goals. After 8 to 10 weeks of peer delivered wellness coaching, improvements were evident in the self-report of physical health, general health, and perceived health. These improvements were sustained 90 days later. PWC is potentially a promising practice for helping people choose and pursue individual goals and facilitating positive health and wellness changes. Rigorous controlled research with larger samples is needed to evaluate the benefits of peer delivered wellness coaching. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

  14. Kuwaiti oil wells blowout - aspects and effects

    International Nuclear Information System (INIS)

    Al-Jassim, F.

    1992-01-01

    When the Iraqi troops were forced to leave Kuwait, they left behind them the greatest oil catastrophe human beings have ever experienced. Fire plumes of tons of gases of principal pollutants, hydrocarbons, soot and associated metals were ejected up to a height of about 5 km. The retreating forces blew off about 1200 wells all over Kuwait fields. Of these 1200 wells, 614 are on fire. Four firefighting companies were hired to start work immediately after the liberation of Kuwaiti to control these wells. Three of these companies were from the U.S.A. and one from Canada. The number of these companies steadily increased along with logistical support. There are now 28 teams made up of private and multinational companies. This paper will concentrate on two main aspects. The first part will focus on the up-to-date engineering aspects of bringing the blown-out wells under control, focusing on oil well fires and the difficulties encountered, such as equipment availability, ordnance clearance and logistical support. The paper then describes the procedures used to control the wells, and the steps taken to reach this aim are presented. Finally the number of wells controlled, area-wise in different fields, with their original status, is also introduced. The second part will concentrate on the environmental aspects, covering the impact of the plumes on air quality, air pollution and health. The paper then discusses the effect on marine environment, vegetation and the soil. Finally, a forecast, conclusions and recommendations are presented. (author)

  15. Well test analysis in fractured media

    Energy Technology Data Exchange (ETDEWEB)

    Karasaki, K.

    1987-04-01

    The behavior of fracture systems under well test conditions and methods for analyzing well test data from fractured media are investigated. Several analytical models are developed to be used for analyzing well test data from fractured media. Numerical tools that may be used to simulate fluid flow in fractured media are also presented. Three types of composite models for constant flux tests are investigated. These models are based on the assumption that a fracture system under well test conditions may be represented by two concentric regions, one representing a small number of fractures that dominates flow near the well, and the other representing average conditions farther away from the well. Type curves are presented that can be used to find the flow parameters of these two regions and the extent of the inner concentric region. Several slug test models with different geometric conditions that may be present in fractured media are also investigated. A finite element model that can simulate transient fluid flow in fracture networks is used to study the behavior of various two-dimensional fracture systems under well test conditions. A mesh generator that can be used to model mass and heat flow in a fractured-porous media is presented.

  16. Spa-Wellness Center as Part of the Hotel Facility

    Directory of Open Access Journals (Sweden)

    Milica Rančić

    2013-04-01

    Full Text Available Over the last decades “wellness spa” industry has experienced a boom around the world. The word “Wellness” has been formed by merging two words: “Well Being” + “fitness”, and appeared in the thirties of the last century in the United States. The primary objective of this movement is an ancient philosophy, according to which there ́s no fulfilled life without the assent of the physical and mental, also physical and spiritual. Hotel guests, today more than ever, want higher quality offer for their money. This means that wellness is today a very important criterion by which customers select hotels. For this reason it is necessary to pay great attention to the planning, design and construction of this part of the hotel facility. The subject of this paper is wellness and spa centers as part of the hotel facility. The task is to investigate and analyze elements of this space, to determine spatial areas of wellness center, as well as their relationships and spatial organization, in order to reach the goal - getting useful guidelines for planning quality wellness center. To all of this could be achieved, we must first go back to distant history where dating back the beginnings of wellness.

  17. Spiritual well-being of patients with multiple sclerosis.

    Science.gov (United States)

    Allahbakhshian, Maryam; Jafarpour, Mahshid; Parvizi, Soroor

    2011-01-01

    Spiritual well-being is one of the fundamental concepts in chronic diseases which create meaning and purpose in life and is an important approach in promoting general health and quality of life. This study performed to determine the level of spiritual health and its dimensions in patients with multiple sclerosis (MS). 236 members of Iranian MS Society were volunteered to participate in a descriptive co-relational study. Spiritual well-being was evaluated by The Spiritual Well-Being Scale (SWBS) questionnaires in two religious and Existential dimensions. Descriptive statistics, ANOVA, t-test and Pearson correlation coefficient were used to analyse the data. The majority of patients (% 97.9) showed moderate spiritual well-being (mean score = 74.3, SD= 8.90). Although Existential well-being (mean score = 40.3, SD= 5.51) was higher than religious well- being (mean score = 33.9, SD= 4.88). A significant relationship was seen between economic status and the spiritual well-being. The results emphasize on the necessity of spiritual well-being as an effective factor on different aspects of these patients' life. This key point is useful and even necessary to be considered to design programs of care and cure for these patients in a country (like Iran) with cultural and religious beliefs. On the other hand, patients' economic status should be considered.

  18. Wave-packet dynamics in quantum wells

    DEFF Research Database (Denmark)

    Kuznetsov, A. V.; Sanders, G. D.; Stanton, C. J.

    1995-01-01

    It has been recently recognized that in bulk semiconductors the displacement current caused by ultrafast optical generation of ''polarized pairs'' in the applied de field is an important mechanism of charge transport in addition to the usual transport current. In quantum-well systems, this polari......It has been recently recognized that in bulk semiconductors the displacement current caused by ultrafast optical generation of ''polarized pairs'' in the applied de field is an important mechanism of charge transport in addition to the usual transport current. In quantum-well systems...... that the carriers in a quantum well can behave as an ensemble of classical particles and produce a transport like photocurrent....

  19. The WHO-5 Well-Being Index

    DEFF Research Database (Denmark)

    Topp, C W; Østergaard, S D; Soendergaard, S

    2015-01-01

    BACKGROUND: The 5-item World Health Organization Well-Being Index (WHO-5) is among the most widely used questionnaires assessing subjective psychological well-being. Since its first publication in 1998, the WHO-5 has been translated into more than 30 languages and has been used in research studies...... is very high. CONCLUSIONS: The WHO-5 is a short questionnaire consisting of 5 simple and non-invasive questions, which tap into the subjective well-being of the respondents. The scale has adequate validity both as a screening tool for depression and as an outcome measure in clinical trials and has been...

  20. The nucleolus is well-posed

    Science.gov (United States)

    Fragnelli, Vito; Patrone, Fioravante; Torre, Anna

    2006-02-01

    The lexicographic order is not representable by a real-valued function, contrary to many other orders or preorders. So, standard tools and results for well-posed minimum problems cannot be used. We prove that under suitable hypotheses it is however possible to guarantee the well-posedness of a lexicographic minimum over a compact or convex set. This result allows us to prove that some game theoretical solution concepts, based on lexicographic order are well-posed: in particular, this is true for the nucleolus.

  1. Managing Danish pupils’ well-being

    DEFF Research Database (Denmark)

    Ratner, Helene Gad; Gad, Christopher

    The concept of well-being has become a key category of social and political imagination, cultivating new understandings of 'what it means to be a capable person' (Corsín Jiménez, 2008, 2). In 2015, the Danish Ministry of Education began conducting national, annual measurements of Danish pupils...... national objectives for pupils' well-being; 2) the Danish newspaper A4's interactive, online mapping of pupils' well-being at all Danish schools, developed from the same numbers (accessed through their juridical right to access government files) but using different calculative techniques and aimed...

  2. EXPLORATION WELL TEST CASE HISTORY CONFIRMS IMPORTANCE OF DST

    Directory of Open Access Journals (Sweden)

    Dario Damjanić

    2009-12-01

    Full Text Available Drill stem testing of the exploration well consisted of two flow and two pressure build-up periods. Gas was obtained. Modified isochronal test was used during testing the well after completion. Except gas, small quantity of condensate and traces of oil and water were obtained. Both pressure build-up analyses showed that formation permeability is low. DST pressure build-up analysis showed that wellbore damage is present. This was proved later, when acid treatment was performed, by which skin was removed and production increased significantly. Data obtained by well testing are very important for future productivity prediction and determination of optimal well completion and surface facility construction (the paper is published in Croatian.

  3. The relationship between psychological well-being and empathy quotient

    Directory of Open Access Journals (Sweden)

    Amirhesam Khajeh

    2014-06-01

    Full Text Available This paper investigates the relationship between psychological well-being and empathy quotient among 200 married students, 100 female and 100 make, in city of Najafabad, Iran. The study uses a questionnaire with 84 questions for measuring psychological well-being, which consists of six parts including Autonomy, Environmental mastery, Personal growth, Positive relation with others, Purpose in life and Self-acceptance, each with 14 questions. Cronbach alphas for these six items were calculated as 0.83, 0.86, 0.85, 0.88, 0.88 and 0.91, respectively. In order to measure empathy quotient (EQ, the study uses EQ-short form, which consists of 22 questions. Cronbach alpha has been calculated as 0.93, which is well above the minimum acceptable level of 0.70. Using stepwise regression technique, the study determines a positive and meaningful relationship between EQ and psychological well-being.

  4. Psychometric properties of the Thai Spiritual Well-Being Scale.

    Science.gov (United States)

    Chaiviboontham, Suchira; Phinitkhajorndech, Noppawan; Hanucharurnkul, Somchit; Noipiang, Thaniya

    2016-04-01

    The purpose of this study was to investigate the psychometric properties of the modified Thai Spiritual Well-Being Scale in patients with advanced cancer. This cross-sectional study was employed to investigate psychometric properties. Some 196 participants from three tertiary hospitals in Bangkok and suburban Thailand were asked to complete a Personal Information Questionnaire (PIQ), The Memorial Symptom Assessment Scale (MSAS), and the Spiritual Well-Being Scale (SWBS). Validity was determined by known-group, concurrent, and constructs validity. Reliability was estimated using internal consistency by Cronbach's α coefficients. Three factors were extracted: so-called existential well-being, religious well-being, and peacefulness accounted for 71.44% of total variance. The Cronbach's α coefficients for total SWB, EWB, RWB, and peacefulness were 0.96, 0.94, and 0.93, respectively. These findings indicate that the Thai SWBS is a valid and reliable instrument, and it presented one more factor than the original version.

  5. Learning to Live Well with Celiac Disease

    Science.gov (United States)

    ... Foundation Celiac Disease Foundation Read More "Celiac Disease" Articles Celiac Disease Changes Everything / What is Celiac Disease? / Symptoms, Diagnosis & Treatment / Four Inches and Seven Pounds… / Learning to Live Well with Celiac Disease / Living Gluten- ...

  6. Students’ Well-Being Assessment at School

    Directory of Open Access Journals (Sweden)

    Nurul Hidayah

    2016-04-01

    Full Text Available This research aims at describing students’ well-being assessment at two private secondary schools in Sleman regency, Yogyakarta Special Province, Indonesia. The subjects of the research were 42 secondary school students in the area. This is an evaluative research by means of quantitative approach. The data collecting technique employed a focus group discussion (FGD while the instrument used an FGD guide book based on a School Well-being Model (Konu and Rimpela, 2002. The data were analyzed quantitatively by means of thematic analysis. The research finding showed that the students’ school well-being was psychologically high at dimension of health status, but low at dimension of having, loving, and being. Another important finding is that there was a tendency of verbal, physical, as well as sexual bullying done by their classmates and teachers personally.

  7. Sediment–well interaction during depressurization

    KAUST Repository

    Shin, Hosung; Santamarina, Carlos

    2016-01-01

    production from hydrate accumulations in marine sediments. Sediment–well interaction is examined using a nonlinear finite element simulator. The hydro-mechanically coupled model represents the sediment as a Cam-Clay material, uses a continuous function

  8. Silicon Germanium Quantum Well Solar Cell

    Data.gov (United States)

    National Aeronautics and Space Administration — A single crystal SiGe has enormous potentials for high performance chips and solar cells. This project seeks to fabricate a rudimentary but 1st cut quantum-well...

  9. Workplace Wellness Programs Study: Final Report

    OpenAIRE

    Mattke, Soeren; Liu, Hangsheng; Caloyeras, John; Huang, Christina Y.; Van Busum, Kristin R.; Khodyakov, Dmitry; Shier, Victoria

    2013-01-01

    This article investigates the characteristics of workplace wellness programs, their prevalence, their impact on employee health and medical cost, facilitators of their success, and the role of incentives in such programs.

  10. MARGINAL EXPENSE OIL WELL WIRELESS SURVEILLANCE MEOWS

    Energy Technology Data Exchange (ETDEWEB)

    Mason M. Medizade; John R. Ridgely; Donald G. Nelson

    2004-11-01

    A marginal expense oil well wireless surveillance system to monitor system performance and production from rod-pumped wells in real time from wells operated by Vaquero Energy in the Edison Field, Main Area of Kern County in California has been successfully designed and field tested. The surveillance system includes a proprietary flow sensor, a programmable transmitting unit, a base receiver and receiving antenna, and a base station computer equipped with software to interpret the data. First, the system design is presented. Second, field data obtained from three wells is shown. Results of the study show that an effective, cost competitive, real-time wireless surveillance system can be introduced to oil fields across the United States and the world.

  11. DIRECTIONAL WELL TRAJECTORY DESIGN: THE THEORITICAL ...

    African Journals Online (AJOL)

    user

    2016-10-04

    Oct 4, 2016 ... record presentation of a desired complex directional well trajectory, also from which the overall angle change. (dogleg) is observed not to ... example; 23oNE means 23 degrees East from North, .... Azimuth Angles Selection.

  12. Lead and Drinking Water from Private Wells

    Science.gov (United States)

    ... type=”submit” value=”Submit” /> Healthy Water Home Lead and Drinking Water from Private Wells Recommend on ... remove lead from my drinking water? What is lead? Lead is a naturally occurring bluish-gray metal ...

  13. Well Logging Equipment Updated in China

    Institute of Scientific and Technical Information of China (English)

    Xu Lili

    1996-01-01

    @@ As one of the ten principal disciplines in the petroleum industry, well logging has been developed for about 55years in China and is playing an increasingly important role in the country's oil and gas exploration and development.

  14. Personality dimensions and subjective well-being.

    Science.gov (United States)

    Chico Librán, Eliseo

    2006-05-01

    This work examines the association between personality dimensions (extraversion and neuroticism) and subjective well-being. Subjective well-being is associated both with extraversion and neuroticism, and currently, neuroticism is generally considered the more important. A total of 368 students from the University of Rovira i Virgili completed the Extraversion and Neuroticism subscales of the revised Eysenck Personality Questionnaire (Eysenck, Eysenck, and Barrett, 1985), the Satisfaction with Life Scale (SWLS; Diener, Emmons, Larsen, and Griffin, 1985), and the Positive and Negative Affect Scale (Watson, Clark, and Tellegen, 1988). Regression analyses revealed the personality variable of neuroticism as one of the most important correlates of subjective well-being. Regression analyses also showed that 44% of the variance of subjective well-being was accounted for by neuroticism, whereas extraversion only explained 8% of the variance.

  15. Systematic Evaluation of Salt Cavern Well Integrity

    Science.gov (United States)

    Roberts, B. L.; Lord, D. L.; Lord, A. S.; Bettin, G.; Sobolik, S. R.; Park, B. Y.

    2017-12-01

    The U.S. Strategic Petroleum Reserve (SPR) holds a reserve of crude oil ( 700 million barrels) to help ease any interruptions in oil import to the United States. The oil is stored in a set of 63 underground caverns distributed across four sites along the U.S. Gulf Coast. The caverns were solution mined into salt domes at each of the four sites. The plastic nature of the salt is beneficial for the storage of crude oil as it heals any fractures that may occur in the salt. The SPR is responsible for operating and maintaining the nearly 120 wells used to access the storage caverns over operational lifetimes spanning decades. Salt creep can induce deformation of the well casing which must be remediated to insure cavern and well integrity. This is particularly true at the interface between the plastic salt and the rigid caprock. The Department of Energy, the SPR Management and Operations contractor, and Sandia National Laboratories has developed a multidimensional well-grading system for the salt cavern access wells. This system is designed to assign numeric grades to each well indicating its risk of losing integrity and remediation priority. The system consists of several main components which themselves may consist of sub-components. The main components consider such things as salt cavern pressure history, results from geomechanical simulations modeling salt deformation, and measurements of well casing deformation due to salt creep. In addition, the geology of the salt domes and their overlying caprock is also included in the grading. These multiple factors are combined into summary values giving the monitoring and remediation priority for each well. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc. for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA0003525.

  16. Piezoelectric effect in strained quantum wells

    International Nuclear Information System (INIS)

    Dang, L.S.; Andre, R.; Cibert, J.

    1995-01-01

    This paper describes some physical aspects of the piezoelectric effect which takes place in strained semiconductor heterostructures grown along a polar axis. First we show how piezoelectric fields can be accurately measured by optical spectroscopy. Then we discuss about the origin of the non-linear piezoelectric effect reported recently for CdTe, and maybe for InAs as well. Finally we compare excitonic effects in piezoelectric and non-piezoelectric quantum wells. (orig.)

  17. Transient well flow in vertically heterogeneous aquifers

    Science.gov (United States)

    Hemker, C. J.

    1999-11-01

    A solution for the general problem of computing well flow in vertically heterogeneous aquifers is found by an integration of both analytical and numerical techniques. The radial component of flow is treated analytically; the drawdown is a continuous function of the distance to the well. The finite-difference technique is used for the vertical flow component only. The aquifer is discretized in the vertical dimension and the heterogeneous aquifer is considered to be a layered (stratified) formation with a finite number of homogeneous sublayers, where each sublayer may have different properties. The transient part of the differential equation is solved with Stehfest's algorithm, a numerical inversion technique of the Laplace transform. The well is of constant discharge and penetrates one or more of the sublayers. The effect of wellbore storage on early drawdown data is taken into account. In this way drawdowns are found for a finite number of sublayers as a continuous function of radial distance to the well and of time since the pumping started. The model is verified by comparing results with published analytical and numerical solutions for well flow in homogeneous and heterogeneous, confined and unconfined aquifers. Instantaneous and delayed drainage of water from above the water table are considered, combined with the effects of partially penetrating and finite-diameter wells. The model is applied to demonstrate that the transient effects of wellbore storage in unconfined aquifers are less pronounced than previous numerical experiments suggest. Other applications of the presented solution technique are given for partially penetrating wells in heterogeneous formations, including a demonstration of the effect of decreasing specific storage values with depth in an otherwise homogeneous aquifer. The presented solution can be a powerful tool for the analysis of drawdown from pumping tests, because hydraulic properties of layered heterogeneous aquifer systems with

  18. Characterization of interfaces in semimagnetic quantum wells

    International Nuclear Information System (INIS)

    Schmitt, G.; Kuhn-Heinrich, B.; Zehnder, U.; Ossau, W.; Litz, T.; Waag, A.; Landwehr, G.

    1995-01-01

    The interfaces between nonmagnetic CdTe quantum wells and semimagnetic barriers of Cd 1-x Mn x Te were investigated for several well widths by low temperature photoluminescence and photoluminescence excitation spectroscopy. Specially designed Cd 1-x Mn x /CdTe/Cd 1-y Mg y Te structures enable us to distinguish the quality of semimagnetic normal and inverted interfaces. The normal interface shows to better structural quality than the inverted interface. (author)

  19. Using informatics to capture older adults' wellness.

    Science.gov (United States)

    Demiris, George; Thompson, Hilaire J; Reeder, Blaine; Wilamowska, Katarzyna; Zaslavsky, Oleg

    2013-11-01

    The aim of this paper is to demonstrate how informatics applications can support the assessment and visualization of older adults' wellness. A theoretical framework is presented that informs the design of a technology enhanced screening platform for wellness. We highlight an ongoing pilot demonstration in an assisted living facility where a community room has been converted into a living laboratory for the use of diverse technologies (including a telehealth component to capture vital signs and customized questionnaires, a gait analysis component and cognitive assessment software) to assess the multiple aspects of wellness of older adults. A demonstration project was introduced in an independent retirement community to validate our theoretical framework of informatics and wellness assessment for older adults. Subjects are being recruited to attend a community room and engage in the use of diverse technologies to assess cognitive performance, physiological and gait variables as well as psychometrics pertaining to social and spiritual components of wellness for a period of eight weeks. Data are integrated from various sources into one study database and different visualization approaches are pursued to efficiently display potential correlations between different parameters and capture overall trends of wellness. Preliminary findings indicate that older adults are willing to participate in technology-enhanced interventions and embrace different information technology applications given appropriate and customized training and hardware and software features that address potential functional limitations and inexperience with computers. Informatics can advance health care for older adults and support a holistic assessment of older adults' wellness. The described framework can support decision making, link formal and informal caregiving networks and identify early trends and patterns that if addressed could reduce adverse health events. Copyright © 2011 Elsevier Ireland

  20. New technique for landfill leachate well installation

    International Nuclear Information System (INIS)

    Hornsby, R.G.; Miller, M.S.

    1991-01-01

    The installation method fulfilled our expectations. The entire well installation took eight writing days to complete, for an average of two wells per day. It met our Health and Safety, waste volume, environmental risk and uniform sandpack expectations. Health and Safety concerns were minimal. We found that virtually all work could be completed using Level D protection. The volume of waste produced by the well installation was extremely low. The core samples and casing scrapings were the only well installation wastes directly produced. The waste containers which required sampling prior to disposal were: Decontaminated water (330 gallons), Personnel protective equipment and water (715 gallons), Soil cores (25 gallons), Land leachate (440 gallons). Each waste type was sampled and submitted to a laboratory for analyses of full Appendix 3 plus U.S. EPA toxicity parameters. The results verified that all of the wastes could be disposed of on-site. Since the only drilling wastes were the clay core samples and the very small amount of material adhering to the casing, contamination of the new clay cap did not occur. A uniform sandpack was guaranteed through the use of a presanded well screen. The loose sand added when the casing was removed served to fill any voids. All the leachate wells have water in them, and it appears that they will function adequately. We are in the process of constructing a treatment and storage facility to manage the liquids to be extracted for off-site disposal. The long-term effectiveness of the wells will be quantified. This well installation method should be considered in situations requiring the following: expedited installation; reduced Health and Safety concerns; reduced disposal costs; reduced potential for adverse environmental impact; and comparable installation costs. The choice of this method must include considerations of the subsurface geology and the nature of any manmade materials

  1. Fire-fighting burning oil wells

    International Nuclear Information System (INIS)

    Newbury, Herbert; Risk, Stewart.

    1993-01-01

    A method of extinguishing burning oil wells is presented which involves dispensing liquid nitrogen to the burning site to prevent or inhibit oxygen from fuelling the flames. To carry out the method a remotely operated vehicle is described which is provided with a source of liquid nitrogen and an articulated deployment boom capable of supplying the liquid nitrogen to the site of a burning oil well. (Author)

  2. San Bernardino National Wildlife Refuge Well 10

    Energy Technology Data Exchange (ETDEWEB)

    Ensminger, J.T.; Easterly, C.E.; Ketelle, R.H.; Quarles, H.; Wade, M.C.

    1999-12-01

    The U.S. Geological Survey (USGS), at the request of the U.S. Fish and Wildlife Service, evaluated the water production capacity of an artesian well in the San Bernardino National Wildlife Refuge, Arizona. Water from the well initially flows into a pond containing three federally threatened or endangered fish species, and water from this pond feeds an adjacent pond/wetland containing an endangered plant species.

  3. Overview - Be Smart. Be Well. STD Videos

    Centers for Disease Control (CDC) Podcasts

    2010-03-15

    This video, produced by Be Smart. Be Well., raises awareness of Sexually Transmitted Diseases (STDs): 1) What are they? 2) Why they matter? and, 3) What can I do about them? Footage courtesy of Be Smart. Be Well., featuring CDC's Dr. John Douglas, Division of Sexually Transmitted Disease Prevention.  Created: 3/15/2010 by National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP).   Date Released: 3/15/2010.

  4. Magnetic surveys for locating abandoned wells

    Science.gov (United States)

    ,

    1995-01-01

    Abandoned and unrecorded wells may act as conduits for the contamination of groundwater supplies by oil field brines and other pollutants. The casings of abandoned wells eventually develop leaks, which, if not properly plugged, can allow pollutants to reach freshwater aquifers that supply drinking water. Sources of pollutants include brine ponds, landfill sites, agricultural activities, industrial activities, illegal disposal sites, or accidental spills. The problem is particularly acute in regions where there are old petroleum fields or where water wells have been extensively used for agricultural irrigation. Even urban areas can contain wells that were abandoned and concealed during development. Carefully designed ground magnetic or aeromagnetic surveys can be used to locate abandoned wells by mapping the magnetic disturbances or "anomalies" produced by their steel well casings. The U.S. Geological Survey (USGS) can, at the request of other Federal, State, or local agencies, conduct, process, and interpret such surveys, or it can aid in the design and monitoring of contracts for such surveys.

  5. Constructing a systems psychodynamic wellness model

    Directory of Open Access Journals (Sweden)

    Sanchen Henning

    2012-03-01

    Research purpose: The purpose of the research was to construct and refine the SPWM in order to understand psychological wellness at the individual, group and organisational levels. Motivation for the study: There is no psychological wellness model that integrates the principles of systems psychodynamics and positive psychology. Systems psychodynamics traditionally focuses on so-called negative behaviour whilst positive psychology tends to idealise positive behaviour. This research tried to merge these views in order to apply them to individual, group and organisational behaviour. Research design, approach and method: The researchers used qualitative, descriptive and conceptual research. They conducted an in-depth literature study to construct the model. They then refined it using the LP. Main findings: The researchers identified 39 themes. They categorised them into three different levels. Three first-level themes emerged as the highest level of integration: identity, hope and love. The nine second-level themes each consisted of three more themes. They were less complex and abstract than the first-level themes. The least complex 27 third-level themes followed. Practical/managerial implications: One can apply the SPWM as a qualitative diagnostic tool for understanding individual, group and organisational wellness and for consulting on systemic wellness. Contribution/value-add: The SPWM offers a model for understanding individual, group and organisational wellness and for consulting on systemic wellness.

  6. Determination method of radiostrontium

    International Nuclear Information System (INIS)

    1984-01-01

    This manual provides determination methods of strontium-90 and strontium-89 in the environment released from nuclear facilities, and it is a revised edition of the previous manual published in 1974. As for the preparation method of radiation counting sample, ion exchange method, oxalate separation method and solvent extraction method were adopted in addition to the method of fuming nitric acid separation adopted in the previous edition. Strontium-90 is determined by the separation and radioactivity determination of yttrium-90 in radioequilibrium with strontium-90. Strontium-89 is determined by subtraction of radioactivity of strontium-90 plus yttrium-90 from gross radioactivity of isolated strontium carbonate. Radioactivity determination should be carried out with a low-background 2 π-gas-flow counting system for the mounted sample on a filter having a chemical form of ferric hydroxide, yttrium oxalate or strontium carbonate. This manual describes sample preparation procedures as well as radioactivity counting procedures for environmental samples of precipitates as rain or snow, airborne dust, fresh water, sea water and soil, and also for ash sample made from biological or food samples such as grains, vegetables, tea leaves, pine needle, milk, marine organisms, and total diet, by employing a method of fuming nitric acid separation, ion exchange separation, oxalate precipitate separation or solvent extraction separation (only for an ash sample). Procedures for reagent chemicals preparation is also attached to this manual. (Takagi, S.)

  7. Application of computer data processing of well logging in Azerbaijan

    International Nuclear Information System (INIS)

    Vorob'ev, Yu.A.; Shilov, G.Ya.; Samedova, A.S.

    1989-01-01

    Transition from the mannal quantitative interpretation of materials of well-logging study (WLS) to application of computer in production association (PA) Azneftegeologiya is described. WLS materials were processed manually in PA till 1986. Later on interpretation was conducted with the use of computer in order to determine clayiness, porosity, oil and gas saturation, fluid of strata. Examples of presentation of results of computer interpretation of WLS data (including gamma-logging and neutron-gamma-logging) for determining porosity and oil saturation of sandy mudrocks are given

  8. Radon measurements in well and spring water in Lebanon

    International Nuclear Information System (INIS)

    Abdallah, Samer M.; Habib, Rima R.; Nuwayhid, Rida Y.; Chatila, Malek; Katul, Gabriel

    2007-01-01

    The variation of dissolved radon ( 222 Rn) levels in water supplies remains of interest because of the radiation-induced public health hazards. A large part of the Lebanese population relies on springs and wells for their drinking water. 222 Rn measurements in spring and well water sources were conducted using the E-PERM method at sites ranging from sea level to 1200m above sea level and across several geologic formations within Lebanon. The dissolved radon concentrations ranged from a low of 0.91BqL -1 in a coastal well source to a high of 49.6BqL -1 for a spring source in a mountainous region. Of the 20 sites sampled, only five had radon levels above 11BqL -1 and these mostly occurred in areas adjacent to well-known geological fault zones. A preliminary national average radon level was determined to be about 11.4BqL -1 . In general, as all determined concentrations were well below the 100 and 146BqL -1 revised reference levels proposed in the European Union and the United States, respectively, it is concluded that there is no reason to believe these water sources pose any radon-related hazard. On the other hand, at locations where water is collected directly from the springhead, it is advisable to have a settling/piping system installed allowing for further radon decay and radon loss into the air to alleviate any possible radon problem

  9. Domestic wells have high probability of pumping septic tank leachate

    Science.gov (United States)

    Bremer, J. E.; Harter, T.

    2012-08-01

    Onsite wastewater treatment systems are common in rural and semi-rural areas around the world; in the US, about 25-30% of households are served by a septic (onsite) wastewater treatment system, and many property owners also operate their own domestic well nearby. Site-specific conditions and local groundwater flow are often ignored when installing septic systems and wells. In areas with small lots (thus high spatial septic system densities), shallow domestic wells are prone to contamination by septic system leachate. Mass balance approaches have been used to determine a maximum septic system density that would prevent contamination of groundwater resources. In this study, a source area model based on detailed groundwater flow and transport modeling is applied for a stochastic analysis of domestic well contamination by septic leachate. Specifically, we determine the probability that a source area overlaps with a septic system drainfield as a function of aquifer properties, septic system density and drainfield size. We show that high spatial septic system density poses a high probability of pumping septic system leachate. The hydraulic conductivity of the aquifer has a strong influence on the intersection probability. We find that mass balance calculations applied on a regional scale underestimate the contamination risk of individual drinking water wells by septic systems. This is particularly relevant for contaminants released at high concentrations, for substances that experience limited attenuation, and those that are harmful even at low concentrations (e.g., pathogens).

  10. Domestic wells have high probability of pumping septic tank leachate

    Directory of Open Access Journals (Sweden)

    J. E. Bremer

    2012-08-01

    Full Text Available Onsite wastewater treatment systems are common in rural and semi-rural areas around the world; in the US, about 25–30% of households are served by a septic (onsite wastewater treatment system, and many property owners also operate their own domestic well nearby. Site-specific conditions and local groundwater flow are often ignored when installing septic systems and wells. In areas with small lots (thus high spatial septic system densities, shallow domestic wells are prone to contamination by septic system leachate. Mass balance approaches have been used to determine a maximum septic system density that would prevent contamination of groundwater resources. In this study, a source area model based on detailed groundwater flow and transport modeling is applied for a stochastic analysis of domestic well contamination by septic leachate. Specifically, we determine the probability that a source area overlaps with a septic system drainfield as a function of aquifer properties, septic system density and drainfield size. We show that high spatial septic system density poses a high probability of pumping septic system leachate. The hydraulic conductivity of the aquifer has a strong influence on the intersection probability. We find that mass balance calculations applied on a regional scale underestimate the contamination risk of individual drinking water wells by septic systems. This is particularly relevant for contaminants released at high concentrations, for substances that experience limited attenuation, and those that are harmful even at low concentrations (e.g., pathogens.

  11. In situ bioremediation via horizontal wells

    International Nuclear Information System (INIS)

    Hazen, T.C.; Looney, B.B.; Enzien, M.; Dougherty, J.M.; Wear, J.; Fliermans, C.B.; Eddy, C.A.

    1993-01-01

    The test consisted of methane mixed with air into the contaminated aquifer via a horizontal well and extraction from the vadose zone via a parallel horizontal well. This configuration has the advantage of simultaneously stimulating methanotrophic activity in both the groundwater and vadose zone, and inhibiting spread of the contaminant plume. Groundwater was monitored biweekly from 13 wells for a variety of chemical and microbiological parameters. Groundwater from wells in affected areas showed increases in methanotrophs of more than 1 order of magnitude every 2 weeks for several weeks after 1% methane-in-air injection was started. Some wells had increases as much as 7 orders of magnitude. Simultaneous with the increase in methanotrophs was a decrease in water and soil gas concentrations of trichloroethylene (TCE) and tetrachloroethane (PCE). Two wells declined in TCE/PCE concentration in the water by more than 90% to below 2 ppb. All of the wells in the affected zone showed significant decreases in contaminants in less than one month. Chloride concentrations in the water were inversely correlated with TCE/PCE concentration. Four of five vadose zone piezometers declined from concentration as high as 10,000 ppm to less than 5 ppm in less than 6 weeks. The fifth cluster also declined by more than 95%. After only three months on injection, a decline in TCE/PCE in the sediment of more than 30% was also observed, with TCE/PCE being undetectable in most sediments at the end of the 14-month test. Gene probes and direct isolation from the water and sediment revealed that the right types of methanotrophs were being stimulated and that isolates could degrade TCE at a high rate

  12. Personality and well-being in adolescents

    Science.gov (United States)

    Moreira, Paulo A. S.; Cloninger, C. Robert; Dinis, Liliana; Sá, Laura; Oliveira, João T.; Dias, Adelaide; Oliveira, Joana

    2015-01-01

    Different profiles of the character dimensions of self-directedness, cooperativeness and self-transcendence result in different levels of wellbeing among adults. However, the influence of the multidimensional character profiles on adolescents' composite wellbeing remains unexplored. This study builds on previous studies with adults, and examines the linear and non-linear associations between the dimensions of the psychobiological model of personality and well-being in adolescents. Participated in this study 1540 adolescents (M = 15.44, SD = 1.731). Personality was assessed using the Temperament and Character Inventory (TCI). Well-being was evaluated in a composite perspective: satisfaction with social support, health-related quality of life, satisfaction with life and affect. Variable-centered and individual-centered analyses were performed. Self-directedness was strongly associated with all dimensions of affective and cognitive well-being regardless of the other two character traits. Cooperativeness was associated with non-affective well-being and with positive affect, but only when associated to elevation of Self-directedness and Self-transcendence. Self-Directedness and Cooperativeness explained 15.5% of the non-affective well-being variance. Self-Directedness and Self-Transcendence explained 10.4% of the variance in affective well-being. This study confirms the tendencies found in previous studies with adults from other societies, where each character dimension gives an independent contribution to well-being depending on the interactions with other Character dimensions. Also, this study highlights the importance of considering the non-linear influences of the character dimensions in understanding of adolescents' wellbeing. These results have strong implications for youth positive mental health promotion, including for school-based policies and practices. PMID:25610408

  13. Personality and well-being in adolescents

    Directory of Open Access Journals (Sweden)

    Paulo Alexandre Soares Moreira

    2015-01-01

    Full Text Available Different profiles of the character dimensions of self-directedness, cooperativeness and self-transcendence result in different levels of wellbeing among adults. However, the description of the multidimensional character profiles on adolescents’ composite wellbeing remains unexplored. This study builds on previous studies with adults, and examines the linear and non-linear associations between the dimensions of the psychobiological model of personality and well-being in adolescents. Participated in this study 1540 adolescents (M=15.44, SD=1.731. Personality was assessed using the Temperament and Character Inventory (TCI. Well-being was evaluated in a composite perspective: satisfaction with social support, health-related quality of life, satisfaction with life and affect. Variable-centered and individual-centered analyses were performed.Self-directedness was strongly associated with all dimensions of affective and cognitive well-being regardless of the other two character traits. Cooperativeness was associated with non-affective well-being and with positive affect, but only when associated to elevation of Self-directedness and Self-transcendence. Self-Directedness and Cooperativeness explained 15.5% of the non-affective well-being variance. Self-Directedness and Self-Transcendence explained 10.4% of the variance in affective well-being. This study confirms the tendencies found in previous studies with adults from other societies, where each character dimension gives an independent contribution to well-being depending on the interactions with other Character dimensions. Also, this study highlights the importance of considering the non-linear influences of the character dimensions in understanding of adolescents’ wellbeing. These results have strong implications for youth positive mental health promotion, including for school-based policies and practices.

  14. Plotting the Course of Well-Being

    Directory of Open Access Journals (Sweden)

    Frances Wilby

    2016-05-01

    Full Text Available Persons above age 80 comprise the fastest growing segment of the U.S. population, and it is estimated that one in four will need long-term care due to increased disabilities and illness. A major concern for residents, families, and providers is to ensure care that “allows the resident to maintain or attain their highest practicable physical, mental and psychosocial well-being.” The challenge is measuring a subjective concept such as well-being. The Eden Alternative is a current initiative aimed at improving the quality of life and well-being of long-term care residents. The initiative consists of providing long-term care environments that emphasize person-directed decision making and well-being. The purpose of this study was to explore the psychometric properties of the Eden Alternative Well-Being Assessment Tool (EAWBAT. There are three assessment tools designed to measure the well-being of elders (residents, family members of residents, and employees working in the long-term care environments. The sample consisted of 237 residents, 430 employees, and 134 family members from seven Eden Alternative organizations throughout the United States. Factor analysis was completed to identify the underlying structure in these data for elders, employees, and families. Reliability statistics were computed for each scale. Reliability statistics ranged from .876 (employee assessment tool to .949 (family assessment tool, indicating the potential of the EAWBAT to measure the well-being of residents residing in long-term care environments, employees supporting them, and their family members.

  15. Natural radioactivity in drinking water in private wells in Finland

    International Nuclear Information System (INIS)

    Vesterbacka, P.; Maekaeinen, I.; Arvela, H.

    2005-01-01

    Natural radioactivity in drinking water was determined in population-based random study of 472 private wells. The mean concentrations of 222 Rn, 226 Ra, 234 U, 238 U, 210 Pb and 210 Po in drilled wells were 460, 0.05, 0.35, 0.26, 0.04 and 0.05 Bq l -1 , and in wells dug in the soil were 50, 0.016, 0.02, 0.015, 0.013 and 0.007 Bq l -1 , respectively. Approximately 10% of the drilled wells exceeded a radon concentration of 1000 Bq l -1 and 18% a uranium concentration of 15 μg l -1 . The mean annual effective dose from natural radionuclides for a drilled well user was 0.4 mSv and 0.05 mSv for a user of a well dug in the soil. The effective dose arising from 222 Rn was 75% of the total of all natural radionuclides for drilled well users. As regards long-lived radionuclides, 210 Po and 210 Pb caused the largest portion of the effective dose. The dose arising from 238 U, 234 U and 226 Ra was only 8% of the total of all natural radionuclides. (authors)

  16. Workforce Characteristics and Attitudes Regarding Participation in Worksite Wellness Programs.

    Science.gov (United States)

    Hall, Jennifer L; Kelly, Kevin M; Burmeister, Leon F; Merchant, James A

    2017-09-01

    To estimate workforce participation characteristics and employees' attitudes regarding participation in workplace wellness programs. Data from a statewide stratified random sample were used to compare small (workplaces to estimate participation in screening programs and likelihood of participation in workplace wellness programs. A telephone survey of employed Iowans registered to vote. Surveyed were 1171 employed Iowans registered to vote, ages 18 to 65. Among questionnaire survey modules were items from the Wellness Council of America Employee Needs and Interest Survey, the U.S. Census Bureau for employment documentation, and the World Health Organization Health and Work Performance Questionnaire for assessment of sickness absenteeism and presenteeism. Prevalence of participation in screening and wellness programs was analyzed by employment size and levels of likeliness to participate, and multivariable analyses of employee baseline characteristics regarding participation in screening programs and likelihood of participation in wellness programs was presented as top and bottom quartiles. Those employed in smaller workplaces participated less often in screening programs. Multivariable models identified male gender and those with an abnormal body mass index were associated with nonparticipation, while having a primary care physician was associated with participation. Very few items showed significant statistical difference in willingness to participate. Workforce characteristics and access to health care may influence participation in screening and wellness programs. Employment size is not a determining factor for willingness to participate in wellness programs.

  17. Entiat 4Mile WELLs Completion Report, 2006.

    Energy Technology Data Exchange (ETDEWEB)

    Malinowksi, Richard

    2007-01-01

    The Entiat 4-mile Wells (Entiat 4-mile) project is located in the Entiat subbasin and will benefit Upper Columbia steelhead, spring Chinook and bull trout. The goal of this project is to prevent juvenile fish from being diverted into an out-of-stream irrigation system and to eliminate impacts due to the annual maintenance of an instream pushup dam. The objectives include eliminating a surface irrigation diversion and replacing it with two wells, which will provide Bonneville Power Administration (BPA) and the Bureau of Reclamation (Reclamation) with a Federal Columbia River Power System (FCRPS) BiOp metric credit of one. Wells were chosen over a new fish screen based on biological benefits and costs. Long-term biological benefits are provided by completely eliminating the surface diversion and the potential for fish entrainment in a fish screen. Construction costs for a new fish screen were estimated at $150,000, which does not include other costs associated with implementing and maintaining a fish screening project. Construction costs for a well were estimated at $20,000 each. The diversion consisted of a pushup dam that diverted water into an off-channel pond. Water was then pumped into a pressurized system for irrigation. There are 3 different irrigators who used water from this surface diversion, and each has multiple water right claims totaling approximately 5 cfs. Current use was estimated at 300 gallons per minute (approximately 0.641 cfs). Some irrigated acreage was taken out of orchard production less than 5 years ago. Therefore, approximately 6.8 acre-feet will be put into the State of Washington Trust Water Right program. No water will be set aside for conservation savings. The construction of the two irrigation wells for three landowners was completed in September 2006. The Lower Well (Tippen/Wick) will produce up to 175 gpm while the Upper Well (Griffith) will produce up to 275 gpm during the irrigation season. The eight inch diameter wells were

  18. Spiritual well-being and moral distress among Iranian nurses.

    Science.gov (United States)

    Soleimani, Mohammad Ali; Sharif, Saeed Pahlevan; Yaghoobzadeh, Ameneh; Sheikhi, Mohammad Reza; Panarello, Bianca; Win, Ma Thin Mar

    2016-06-16

    Moral distress is increasingly recognized as a problem affecting healthcare professionals, especially nurses. If not addressed, it may create job dissatisfaction, withdrawal from the moral dimensions of patient care, or even encourage one to leave the profession. Spiritual well-being is a concept which is considered when dealing with problems and stress relating to a variety of issues. This research aimed to examine the relationship between spiritual well-being and moral distress among a sample of Iranian nurses and also to study the determinant factors of moral distress and spiritual well-being in nurses. A cross-sectional, correlational design was employed to collect data from 193 nurses using the Spiritual Well-Being Scale and the Moral Distress Scale-Revised. This study was approved by the Regional Committee of Medical Research Ethics. The ethical principles of voluntary participation, anonymity, and confidentiality were considered. Mean scores of spiritual well-being and moral distress were 94.73 ± 15.89 and 109.56 ± 58.70, respectively. There was no significant correlation between spiritual well-being and moral distress (r = -.053, p = .462). Marital status and job satisfaction were found to be independent predictors of spiritual well-being. However, gender and educational levels were found to be independent predictors for moral distress. Age, working in rotation shifts, and a tendency to leave the current job also became significant after adjusting other factors for moral distress. This study could not support the relationship between spiritual well-being and moral distress. However, the results showed that moral distress is related to many elements including individual ideals and differences as well as organizational factors. Informing nurses about moral distress and its consequences, establishing periodic consultations, and making some organizational arrangement may play an important role in the identification and management of moral distress and

  19. Well-plate freeze-drying

    DEFF Research Database (Denmark)

    Trnka, Hjalte; Rantanen, Jukka; Grohganz, Holger

    2015-01-01

    Abstract Context: Freeze-drying in presence of excipients is a common practice to stabilize biomacromolecular formulations. The composition of this formulation is known to affect the quality of the final product. Objective: The aim of this study was to evaluate freeze-drying in well-plates as a h......Abstract Context: Freeze-drying in presence of excipients is a common practice to stabilize biomacromolecular formulations. The composition of this formulation is known to affect the quality of the final product. Objective: The aim of this study was to evaluate freeze-drying in well......-plates as a high throughput platform for formulation screening of freeze-dried products. Methods: Model formulations consisting of mannitol, sucrose and bovine serum albumin were freeze-dried in brass well plates, plastic well plates and vials. Physical properties investigated were solid form, residual moisture......, cake collapse and reconstitution time. Results: Samples freeze-dried in well-plates had an acceptable visual cake appearance. Solid form analysis by high throughput X-ray powder diffraction indicated comparable polymorphic outcome independent of the container. The expected increase in moisture level...

  20. Study of condensate removal from wells

    Energy Technology Data Exchange (ETDEWEB)

    Gusein-Zade, Z I

    1967-01-01

    A pressure profile of well No. 218 in the Karadag condensate field showed that pressure did not vary linearly with depth. Calculations indicated that at depths of 3,000-3,640 m, produced fluid had a density of 0.29g/ cmU3D, whereas pure condensate gas should have a density of 0.11g/cmU3D. Apparently liquid was accumulating in the well. Other data showed that gas velocity in the well at various depths varied from 6 to 11 m/sec. It was also found that this same range of gas velocities was sufficient to prevent liquid accumulation in other wells. In an effort to solve this problem, the upward flow of gas-water and of gas-condensate mixtures in tubes was studied. Each had a different flow regime. Gas-condsensate formed foam, whereas the gas-water mixture did not. This resolved the problem, since foam is known to aid the removal of liquid by gas. Additional research showed that water was present in, and promoted accumulation of, liquid in well No. 218.

  1. ADVANCED TECHNOLOGIES FOR STRIPPER GAS WELL ENHANCEMENT

    International Nuclear Information System (INIS)

    Charles M. Boyer II; Ronald J. MacDonald P.G.

    2002-01-01

    As part of Task 1 in Advanced Technologies for Stripper Gas Well Enhancement, Schlumberger-Holditch Reservoir Technologies (H-RT) has joined with two Appalachian Basin producers, Great Lakes Energy Partners, LLC, and Belden and Blake Corporation to develop methodologies for identification and enhancement of stripper wells with economic upside potential. These industry partners have provided us with data for more than 700 wells in northwestern Pennsylvania. Phase 1 goals of this project are to develop and validate methodologies that can quickly and cost-effectively identify wells with enhancement potential. We have continued to enhance and streamline our software, and we are testing the final stages of our new Microsoft(trademark) Access/Excel based software. We are continuing to process the information and are identifying potential candidate wells that can be used in Phase 2 to validate the new methodologies. In addition, preparation of the final technical report is underway. During this quarter, we have presented our project and discussed the software to numerous Petroleum Technology Transfer Council (PTTC) workshops located in various regions of the United States

  2. Well test analysis in fractured media

    Energy Technology Data Exchange (ETDEWEB)

    Karasaki, K.

    1986-04-01

    In this study the behavior of fracture systems under well test conditions and methods for analyzing well test data from fractured media are investigated. Several analytical models are developed to be used for analyzing well test data from fractured media. Numerical tools that may be used to simulate fluid flow in fractured media are also presented. Three types of composite models for constant flux tests are investigated. Several slug test models with different geometric conditions that may be present in fractured media are also investigated. A finite element model that can simulate transient fluid flow in fracture networks is used to study the behavior of various two-dimensional fracture systems under well test conditions. A mesh generator that can be used to model mass and heat flow in a fractured-porous media is presented. This model develops an explicit solution in the porous matrix as well as in the discrete fractures. Because the model does not require the assumptions of the conventional double porosity approach, it may be used to simulate cases where double porosity models fail.

  3. A wellness software platform with smart wearable devices and the demonstration report for personal wellness management

    Science.gov (United States)

    Kang, Won-Seok; Son, Chang-Sik; Lee, Sangho; Choi, Rock-Hyun; Ha, Yeong-Mi

    2017-07-01

    In this paper, we introduce a wellness software platform, called WellnessHumanCare, is a semi-automatic wellness management software platform which has the functions of complex wellness data acquisition(mental, physical and environmental one) with smart wearable devices, complex wellness condition analysis, private-aware online/offline recommendation, real-time monitoring apps (Smartphone-based, Web-based) and so on and we has demonstrated a wellness management service with 79 participants (experimental group: 39, control group: 40) who has worked at experimental group (H Corp.) and control group (K Corp.), Korea and 3 months in order to show the efficiency of the WellnessHumanCare.

  4. HORIZONTAL WELL DRILL-IN FLUIDS

    Directory of Open Access Journals (Sweden)

    Nediljka Gaurina-Međimurec

    1998-12-01

    Full Text Available Main objective of horizontal driling is to place a drain-hole for a long distance within the pay zone to enhance productivity or injectivity. In drilling horizontal wells, more serious problems appear than in drilling vertical wells. These problems are: poor hole cleaning, excessive torque and drag, hole filling, pipe stucking, wellbore instability, loss of circulation, formation damage, poor cement job, and difficulties at logging jobs. From that reason, successful drilling and production of horizontal well depends largely on the fluid used during drilling and completion phases. Several new fluids, that fulfill some or all of required properties (hole cleaning, cutting suspension, good lubrication, and relative low formation damage, are presented in this paper.

  5. Economic Shocks and Subjective Well-Being

    DEFF Research Database (Denmark)

    Hariri, Jacob Gerner; Bjørnskov, Christian; Justesen, Mogens Kamp

    This paper examines how economic shocks affect individual well-being in developing countries. Using the case of a sudden and unanticipated currency devaluation in Botswana as a quasi-experiment, we examine how this monetary shock affects individuals’ evaluations of well-being. We do so by using...... micro-level survey data, which – incidentally – was collected in the days surrounding the devaluation. The chance occurrence of the devaluation during the time of the survey enables us to use pre-treatment respondents, surveyed before the devaluation, as approximate counterfactuals for post......-treatment respondents, surveyed after the devaluation. Our estimates show that the devaluation had a large and significantly negative effect on individuals’ evaluations of subjective well-being. These results suggest that macroeconomic shocks, such as unanticipated currency devaluations, may have significant short...

  6. Economic Shocks and Subjective Well-being

    DEFF Research Database (Denmark)

    Hariri, Jacob Gerner; Bjørnskov, Christian; Justesen, Mogens Kamp

    This paper examines how economic shocks affect individual well-being in developing countries. Using the case of a sudden and unanticipated currency devaluation in Botswana as a quasi-experiment, we examine how this monetary shock affects individuals’ evaluations of well-being. We do so by using...... micro-level survey data, which – incidentally – was collected in the days surrounding the devaluation. The chance occurrence of the devaluation during the time of the survey enables us to use pre-treatment respondents, surveyed before the devaluation, as approximate counterfactuals for post......-treatment respondents, surveyed after the devaluation. Our estimates show that the devaluation had a large and significantly negative effect on individuals’ evaluations of subjective well-being. These results suggest that macroeconomic shocks, such as unanticipated currency devaluations, may have significant short...

  7. Formation evaluation of a horizontal well

    International Nuclear Information System (INIS)

    Najia, W.K.; Habib, K.H.; Asada, J.

    1991-01-01

    In Upper Zakum Field, the interest in horizontal drilling has continued. A second horizontal well was drilled during the second half of 1989. This necessitated running logging tools for well control and to evaluate the reservoir characteristics. The logging tool selected for this well is that of Sperry-Sun. Tools configuration and tolerance were found to fulfil SADCO's requirements and specifications. This paper reports on the services produced which included Measurement While Drilling (MWD) directional services and RLL (Recorded Lithology Logging). The RLL services cover Dual Gamma Ray (DGR), Electromagnetic Wave Resistivity (EWR) and Compensated Neutron Porosity (CN porosity). All the RLL tools were an integrated part of the Bottom Hole Drilling Assembly. Data acquired while surveying was recorded in a recording sub down-hole and retrieved when the tools were up at the surface. A PC assisted quick look interpretation was carried out using Archie's equation in shale free limestone to calculate: Effective porosity, Water Saturation and, Bulk water volume

  8. Strained quantum well photovoltaic energy converter

    Science.gov (United States)

    Freundlich, Alexandre (Inventor); Renaud, Philippe (Inventor); Vilela, Mauro Francisco (Inventor); Bensaoula, Abdelhak (Inventor)

    1998-01-01

    An indium phosphide photovoltaic cell is provided where one or more quantum wells are introduced between the conventional p-conductivity and n-conductivity indium phosphide layer. The approach allows the cell to convert the light over a wider range of wavelengths than a conventional single junction cell and in particular convert efficiently transparency losses of the indium phosphide conventional cell. The approach hence may be used to increase the cell current output. A method of fabrication of photovoltaic devices is provided where ternary InAsP and InGaAs alloys are used as well material in the quantum well region and results in an increase of the cell current output.

  9. Well logging system with linearity control

    International Nuclear Information System (INIS)

    Jones, J.M.

    1973-01-01

    Apparatus is described for controlling the gain of a nuclear well logging system comprising: (1) means for measuring the energy spectrum of gamma rays produced by earth formation materials surrounding a well borehole; (2) means for measuring the number of counts of a gamma rays having an energy falling within each of at least two predetermined energy band portions of the gamma ray energy spectrum; (3) means for generating a signal proportional to the ratio of the gamma ray counts and for comparing the ratio signal with at least one constant ratio calibration signal; (4) means for generating an error signal representative of the difference of the ratio signal and the constant ratio calibration signal; and (5) means for using the error signal to control the linearity of the well logging system. (author)

  10. Design considerations for heated wells in gloveboxes

    International Nuclear Information System (INIS)

    Frigo, A. A.; Preuss, D. E.

    1999-01-01

    Heated wells in gloveboxes have been used for many years by the Argonne National Laboratory Chemical Technology Division for nuclear-technology, waste-management, chemical-technology, and analytical-chemistry research. These wells allow experiments to be isolated from the main working volume of the glovebox. In addition, wells, when sealed, allow experiments to be conducted under pressurized or vacuum conditions. Until recently, typical maximum operational temperatures were about 500 C. However, more recent research is requiring operational temperatures approaching 900 C. These new requirements pose interesting design challenges that must be resolved. Some problem areas include temperature effects on material properties, maintaining a seal, cooling selected areas, and minimizing stresses. This paper discusses issues related to these design challenges and the ways in which these issues have been resolved

  11. Quantum Well Infrared Photodetectors Physics and Applications

    CERN Document Server

    Schneider, Harald

    2007-01-01

    Addressed to both students as a learning text and scientists/engineers as a reference, this book discusses the physics and applications of quantum-well infrared photodetectors (QWIPs). It is assumed that the reader has a basic background in quantum mechanics, solid-state physics, and semiconductor devices. To make this book as widely accessible as possible, the treatment and presentation of the materials is simple and straightforward. The topics for the book were chosen by the following criteria: they must be well-established and understood; and they should have been, or potentially will be, used in practical applications. The monograph discusses most aspects relevant for the field but omits, at the same time, detailed discussions of specialized topics such as the valence-band quantum wells.

  12. Well screening for matrix stimulation treatments

    International Nuclear Information System (INIS)

    Saavedra, N; Solano, R; Gidley, J; Reyes, C.A; Rodriguez; Kondo, F; Hernandez, J

    1998-01-01

    Matrix acidizing is a stimulation technique only applicable to wells with surrounding damage. It is therefore very important to differentiate the real formation damage from the damage caused by flow Ni dynamic effects. The mechanical damage corresponds to flow restrictions caused by partial penetration, poor perforation as well as to reduce diameters of the production tubing. The dynamic effects are generated by inertia caused by high flow rates and high-pressure differentials. A common practice in our oil fields is to use a general formulation as acid treatment, most of the times without previous lab studies that guarantee the applicability of the treatment in the formation. Additionally, stimulation is randomly applied even treating undamaged wells with negative results and in the best of the cases, loss of the treatment. The selection of the well for matrix stimulation is an essential factor for the success of the treatment. Selection is done through the evaluation of the skin factor (S) and of the economic benefits of reducing the skin in comparison to the cost of the work. The most appropriate tool for skin evaluation is a good pressure test where the radial flow period can be identified. Nevertheless, we normally find-outdated tests most of the times taken with inaccurate tools. The interpretation problem is worsened by completions in which there is simultaneous production from several sand packages and it is difficult to individually differentiate damage factors. This works states a procedure for the selection of wells appropriate for stimulation; it also proposes a method to evaluate the skin factor when there are no accurate interpretations of the pressure tests. A new and increasingly applied methodology to treat wells with high water cuts, which are usually discarded due to the risk of stimulating water zones, is also mentioned

  13. Insight analysis of biplane Wells turbine performance

    International Nuclear Information System (INIS)

    Shaaban, S.

    2012-01-01

    Highlights: ► Downstream rotor reduces overall turbine efficiency during normal operation. ► Recirculation behind downstream rotor significantly reduces the torque delivered by the turbine. ► Upstream rotor significantly affects downstream rotor performance even at high gap to chord ratios. ► Downstream rotor produces only 10–30% of the turbine power despite its feasible exergy level. ► The downstream rotor significantly delays turbine start up. - Abstract: Wells turbines are very promising in converting wave energy. Improving the design and performance of Wells turbines requires deep understanding of the energy conversion process and losses mechanisms of these energy convertors. The performance of a biplane Wells turbine having 45° stagger angle between rotors is numerically investigated. The turbine performance is simulated by solving the steady 3D incompressible Reynolds Averaged Navier–Stocks equation (RANS). The present numerical investigation shows that the upstream rotor significantly affects the downstream rotor performance even at high gap-to-chord ratio (G/c = 1.4). The contribution of the downstream rotor in the overall biplane Wells turbine performance is limited. The downstream rotor torque represents 10–30% of the total turbine torque and the upstream rotor efficiency is 1.5–5 times the downstream rotor efficiency at normal operating conditions. Exergy analysis shows that the downstream rotor is the main component that reduces the turbine second law efficiency. The blade exergy increases from hub to tip and decreases from leading edge to trailing edge. Therefore, 3D blade profile optimization is essential for substantial improvement of the energy conversion process. Improving the design of the inter-rotors zone can significantly improve biplane Wells turbine performance. Future biplane Wells turbine designs should focus essentially on improving the downstream rotor performance.

  14. Sediment–well interaction during depressurization

    KAUST Repository

    Shin, Hosung

    2016-10-05

    Depressurization gives rise to complex sediment–well interactions that may cause the failure of wells. The situation is aggravated when high depressurization is imposed on sediments subjected to an initially low effective stress, such as in gas production from hydrate accumulations in marine sediments. Sediment–well interaction is examined using a nonlinear finite element simulator. The hydro-mechanically coupled model represents the sediment as a Cam-Clay material, uses a continuous function to capture compressibility from low to high effective stress, and recognizes the dependency of hydraulic conductivity on void ratio. Results highlight the critical effect of hydro-mechanical coupling as compared to constant permeability models: A compact sediment shell develops against the screen, the depressurization zone is significantly smaller than the volume anticipated assuming constant permeability, settlement decreases, and the axial load on the well decreases; in the case of hydrates, gas production will be a small fraction of the mass estimated using a constant permeability model. High compressive axial forces develop in the casing within the production horizon, and the peak force can exceed the yield capacity of the casing and cause its collapse. Also tensile axial forces may develop in the casing above the production horizon as the sediment compacts in the depressurized zone and pulls down from the well. Well engineering should consider: slip joints to accommodate extensional displacement above the production zone, soft telescopic/sliding screen design to minimize the buildup of compressive axial force within the production horizon, and enlarged gravel pack to extend the size of the depressurized zone.

  15. Drill-string design for directional wells

    Energy Technology Data Exchange (ETDEWEB)

    Dawson, R; Corbett, K T [Exxon Production Research Co., Houston, TX (USA)

    1983-01-01

    This paper is concerned with predicting the tension and torsion loads on drill strings in directional wells and with adjusting the string design or well plan to provide adequate strength. Drill-string drag is the incremental force that is required to move the pipe up or down in the hole; torque is the moment required to rotate the pipe. Drag forces are usually given relative to the string weight measured with the string roating but not reciprocating. Measured from the roating string weight, the pick-up drag is usually slightly greater than the slack-off drag. The magnitudes of torque and drag are related in any particular well; high drag forced and exessive torque loads normally occur together. There are a number of phenomena wich contribute to torque and drag. Included are tight hole conditions, sloughing hole, keyseats, differential sticking, cuttings build up due to poor hole cleaning and sliding wellbore friction. With the exception of sliding friction, these causes are associated with problem conditions in the wellbore. Conversely, in wells with good hole conditions, the primary source of torque and drag is sliding friction. This paper is only concerned with the torque and drag caused by sliding friction. The cabability to predict frictional loads on drill pipe has two main benefits. First, more complete knowledge of drill-string loading allows use of improved drill-string design techniques. Drill-string components can be chosen using a systematic approach considering the force involved. Second, deep, highly-deviated wells can be planned to minimize torque and drag. Use of torque and drag as a criteria to select the most appropriate well path will help ensure successful drilling operations to total depth. 1 fig., 2 tabs. (Author).

  16. Description of calls from private well owners to a national well water hotline, 2013

    International Nuclear Information System (INIS)

    Ridpath, Alison; Taylor, Ethel; Greenstreet, Charlene; Martens, Margaret; Wicke, Heather; Martin, Colleen

    2016-01-01

    Water Systems Council (WSC) is a national, non-profit organization providing education and resources to private household well owners. Since 2003, WSC has provided wellcare®, a toll-free telephone hotline to answer questions from the public regarding well stewardship. In order to identify knowledge gaps regarding well stewardship among private well owners, we obtained data from WSC and reviewed calls made during 2013 to wellcare®. WSC records data from each wellcare® call—including caller information, primary reason for call, main use of well water, and if they were calling about a cistern, private well, shared well, or spring. We searched for calls with key words indicating specific contaminants of interest and reviewed primary reasons for calls. Calls classified as primarily testing-related were further categorized depending on whether the caller asked about how to test well water or how to interpret testing results. During 2013, wellcare® received 1100 calls from private well owners who were residents of 48 states. Among these calls, 87 (8%) mentioned radon, 83 (8%) coliforms, 51 (5%) chemicals related to fracking, 34 (3%) arsenic, and 32 (3%) nitrates key words. Only 38% of private well owners reported conducting any well maintenance activities, such as inspecting, cleaning, repairing the well, or testing well water, during the previous 12 months. The primary reason for calls were related to well water testing (n = 403), general information relating to wells (n = 249), contaminants (n = 229), and well water treatment (n = 97). Among calls related to testing, 319 had questions about how to test their well water, and 33 had questions about how to interpret testing results. Calls from private well owners to the wellcare® Hotline during 2013 identified key knowledge gaps regarding well stewardship; well owners are generally not testing or maintaining their wells, have questions about well water testing treatment, and concerns about well water contaminants

  17. Description of calls from private well owners to a national well water hotline, 2013

    Energy Technology Data Exchange (ETDEWEB)

    Ridpath, Alison, E-mail: etf4@cdc.gov [Centers for Disease Control and Prevention, 4770 Buford Hwy, NE, MS-F-60, Chamblee, GA 30341 (United States); Taylor, Ethel [Centers for Disease Control and Prevention, 4770 Buford Hwy, NE, MS-F-60, Chamblee, GA 30341 (United States); Greenstreet, Charlene; Martens, Margaret; Wicke, Heather [Water Systems Council, 1101 30th St NW, Washington, DC 20007 (United States); Martin, Colleen [Centers for Disease Control and Prevention, 4770 Buford Hwy, NE, MS-F-60, Chamblee, GA 30341 (United States)

    2016-02-15

    Water Systems Council (WSC) is a national, non-profit organization providing education and resources to private household well owners. Since 2003, WSC has provided wellcare®, a toll-free telephone hotline to answer questions from the public regarding well stewardship. In order to identify knowledge gaps regarding well stewardship among private well owners, we obtained data from WSC and reviewed calls made during 2013 to wellcare®. WSC records data from each wellcare® call—including caller information, primary reason for call, main use of well water, and if they were calling about a cistern, private well, shared well, or spring. We searched for calls with key words indicating specific contaminants of interest and reviewed primary reasons for calls. Calls classified as primarily testing-related were further categorized depending on whether the caller asked about how to test well water or how to interpret testing results. During 2013, wellcare® received 1100 calls from private well owners who were residents of 48 states. Among these calls, 87 (8%) mentioned radon, 83 (8%) coliforms, 51 (5%) chemicals related to fracking, 34 (3%) arsenic, and 32 (3%) nitrates key words. Only 38% of private well owners reported conducting any well maintenance activities, such as inspecting, cleaning, repairing the well, or testing well water, during the previous 12 months. The primary reason for calls were related to well water testing (n = 403), general information relating to wells (n = 249), contaminants (n = 229), and well water treatment (n = 97). Among calls related to testing, 319 had questions about how to test their well water, and 33 had questions about how to interpret testing results. Calls from private well owners to the wellcare® Hotline during 2013 identified key knowledge gaps regarding well stewardship; well owners are generally not testing or maintaining their wells, have questions about well water testing treatment, and concerns about well water contaminants

  18. Wellness: Pharmacy Education's Role and Responsibility

    Science.gov (United States)

    Olin, Bernie R.

    2010-01-01

    The root cause of most chronic diseases in America is self-inflicted through an unhealthy lifestyle including poor diet, insufficient exercise, inability to maintain a healthy weight, tobacco use, and excessive alcohol consumption. Americans' ability to adhere to healthy lifestyles appears to be declining.1,2 The pharmacy profession, while positioned to provide an answer to this problem, has done little. In addition, academic pharmacy's primary focus is on drugs and diseases with limited instruction in the area of wellness. It is time for pharmacy education to step up and take a leadership role in enhancing the wellness of Americans. PMID:20585430

  19. Characterization of interfaces in semimagnetic quantum wells

    Energy Technology Data Exchange (ETDEWEB)

    Schmitt, G.; Kuhn-Heinrich, B.; Zehnder, U.; Ossau, W.; Litz, T.; Waag, A.; Landwehr, G. [Physikalishes Institut der Universitaet Wuerzburg am Hubland, Wuerzburg (Germany)

    1995-12-31

    The interfaces between nonmagnetic CdTe quantum wells and semimagnetic barriers of Cd{sub 1-x}Mn{sub x}Te were investigated for several well widths by low temperature photoluminescence and photoluminescence excitation spectroscopy. Specially designed Cd{sub 1-x}Mn{sub x}/CdTe/Cd{sub 1-y} Mg{sub y}Te structures enable us to distinguish the quality of semimagnetic normal and inverted interfaces. The normal interface shows to better structural quality than the inverted interface. (author). 5 refs, 2 figs, 1 tab.

  20. The power of integrating consumerism and wellness.

    Science.gov (United States)

    William, C Sharon; Tacker, Linh

    2010-01-01

    One aspect in our troubling economy that seems to be flourishing is the growing number of employers implementing consumer-driven health (CDH) plans and wellness programs. This article describes the primary areas of participant behavior that consumerism seeks to change and the fundamental factors a "consumer-focused" health care strategy must include. The authors outline issues employers must address when designing a successful incentive program and its accompanying communications strategy. A case study of a company that has a 70% enrollment rate in its CDH plans shows how an integrated consumerism and wellness strategy can slow the rate of health care cost increases for both the employee and employer.

  1. Linking forests and economic well-being

    NARCIS (Netherlands)

    Wang, S.; DesRoches, C.T.; Sun, L.; Stennes, B.; Wilson, B.; Kooten, van G.C.

    2007-01-01

    This paper has three main objectives: (1) to investigate whether the four-quadrant approach introduced by Maini (2003) reveals a useful typology for grouping countries by GDP and forest cover per capita, (2) to determine if the framework can enhance our understanding of the relationship between

  2. Control procedure for well drilling operations

    Energy Technology Data Exchange (ETDEWEB)

    Bourdon, J C

    1988-09-09

    A control procedure of rotary drilling operations is proposed. It uses the Drill off test. The drill-off test permits to determine the rock drill speed variation as a function of the wright applied on the top of the pipe. We can deduce from that a rock drill wear parameter. The method permits to prevent a rupture and its grave economic consequences.

  3. Fractal Theory for Permeability Prediction, Venezuelan and USA Wells

    Science.gov (United States)

    Aldana, Milagrosa; Altamiranda, Dignorah; Cabrera, Ana

    2014-05-01

    Inferring petrophysical parameters such as permeability, porosity, water saturation, capillary pressure, etc, from the analysis of well logs or other available core data has always been of critical importance in the oil industry. Permeability in particular, which is considered to be a complex parameter, has been inferred using both empirical and theoretical techniques. The main goal of this work is to predict permeability values on different wells using Fractal Theory, based on a method proposed by Pape et al. (1999). This approach uses the relationship between permeability and the geometric form of the pore space of the rock. This method is based on the modified equation of Kozeny-Carman and a fractal pattern, which allows determining permeability as a function of the cementation exponent, porosity and the fractal dimension. Data from wells located in Venezuela and the United States of America are analyzed. Employing data of porosity and permeability obtained from core samples, and applying the Fractal Theory method, we calculated the prediction equations for each well. At the beginning, this was achieved by training with 50% of the data available for each well. Afterwards, these equations were tested inferring over 100% of the data to analyze possible trends in their distribution. This procedure gave excellent results in all the wells in spite of their geographic distance, generating permeability models with the potential to accurately predict permeability logs in the remaining parts of the well for which there are no core samples, using even porority logs. Additionally, empirical models were used to determine permeability and the results were compared with those obtained by applying the fractal method. The results indicated that, although there are empirical equations that give a proper adjustment, the prediction results obtained using fractal theory give a better fit to the core reference data.

  4. Environmental applications for an intrinsic germanium well detector

    International Nuclear Information System (INIS)

    Stegnar, P.; Eldridge, J.S.; Teasley, N.A.; Oakes, T.W.

    1984-01-01

    The overall performance of an intrinsic germanium well detector for 125 I measurements was investigated in a program of environmental surveillance. Concentrations of 125 I and 131 I were determined in thyroids of road-killed deer showing the highest activities of 125 I in the animals from the near vicinity of Oak Ridge National Laboratory. This demonstrates the utility of road-killed deer as a bioindicator for radioiodine around nuclear facilities

  5. Environmental applications for an intrinsic germanium well detector

    International Nuclear Information System (INIS)

    Stegnar, P.; Eldridge, J.S.; Teasley, N.A.; Oakes, T.W.

    1984-01-01

    The overall performance of an intrinsic germanium well detector for 125 I measurements was investigated in a program of environmental surveillance. Concentrations of 125 I and 131 I were determined in thyroids of road-killed deer showing the highest activities of 125 I in the animals from the near vicinity of Oak Ridge National Laboratory. This demonstrates the utility of road-killed deer as a bionindicator for radioiodine around nuclear facilities. 6 refs., 2 figs., 3 tabs

  6. Environmental applications for an intrinsic germanium well detector

    International Nuclear Information System (INIS)

    Stegnar, P.; Eldridge, J.S.; Teasley, N.A.; Oakes, T.W.

    1983-01-01

    The overall performance of an intrinsic germanium well detector for 125 I measurements was investigated in a program of environmental surveillance. Concentrations of 125 I and 131 I were determined in thyroids of road-killed deer showing the highest activities of 125 I in the animals from the near vicinity of Oak Ridge National Laboratory. This demonstrates the utility of road-killed deer as a bioindicator for radioiodine around nuclear facilities. 6 refs., 2 figs., 3 tabs

  7. Are graduates well-equipped for the labour market?

    OpenAIRE

    García Aracil, Adela

    2014-01-01

    This paper attempts to develop insights into comparative evaluations of quality determinants for education services provided by higher education (HE) institutions as they are perceived by their graduates in some European countries. Quality in HE, as well as defining a way to measure it, is not a simple issue and there is no commonly accepted definition. Therefore, we based on student’s opinions of their academic courses. Customer satisfaction generally is a function of the consumer’s satisfac...

  8. International migration desires related to subjective well-being

    OpenAIRE

    Cai, Ruohong; Esipova, Neli; Oppenheimer, Michael; Feng, Shuaizhang

    2014-01-01

    Previous research on the determinants of international migration has largely focused on objective factors, such as income. We instead use subjective well-being (SWB) to explain international migration desires, an expressed willingness to migrate. We find that individuals with higher SWB have lower international migration desires. At the individual level, the SWB-migration relationship appears to be more robust than the income-migration relationship. At the country level, national average SWB ...

  9. Sociological theories of subjective well-being

    NARCIS (Netherlands)

    R. Veenhoven (Ruut)

    2009-01-01

    textabstractSubjective well-being is no great issue in sociology; the subject is not mentioned in sociological textbooks (a notable exception is Nolan & Lenski, 2004) and is rarely discussed in sociological journals. This absence has many reasons: pragmatic, ideological, and theoretical. To begin

  10. Sports Drove Silva to Teach Wellness

    Science.gov (United States)

    Deschenie, Tina

    2008-01-01

    This article profiles teacher Leroy Silva (Laguna), 27, a.k.a. "Buster". Silva describes himself as an active guy who stays busy working out, playing basketball, softball, and more recently golf, soccer, and lacrosse. He teaches personal wellness and sports (not physical education), a job he began in 2006. Before that he was a trainer at…

  11. Cybernetic Wellness of the Youth: Psychological Aspect

    Science.gov (United States)

    Zinnatova, Mariya V.; Zeer, Evald F.; Zavyalova, Ekaterina V.; Sorokin, Vladimir ?.; Yudina, Marina S.

    2016-01-01

    The ever more growing relevance of the issue under evaluation is explained by the wide expansion of digital technology that leads to the necessity to ensure cybernetic wellness of the population, especially the young. The goal of this article is to detect the psychological peculiarities of the Internet dependence of the youth. The leading approach…

  12. A Comprehensive Wellness Program for International Students.

    Science.gov (United States)

    Fisher, Millard J.; Ozaki, Roger H.

    This document presents a model wellness program for international college students in the United States and strategies to aid them in staying healthy during their stay. It notes that, without parents or other support groups, international students run the risk of developing serious health problems because of inadequate diet and sleep, substandard…

  13. New instantons in the double well potential

    NARCIS (Netherlands)

    Vandoren, S.; Nieuwenhuizen, P. van

    2000-01-01

    A new solution of the Euclidean equations of motion is found for the quantummechanical double-well potential with a four-fermion term. It extends the usual kinkinstanton solution in which both the kink field and the fermionic fields contain a finite number of new terms which are polynomial in the

  14. On the Importance of Well-Being

    DEFF Research Database (Denmark)

    Rodogno, Raffaele

    2008-01-01

    Many among philosophers and non-philosophers would claim that well-being is important in moral theory because it is important to the individual whose well-being it is. The exact meaning of this claim, however, is in need of clarification. Having provided that, I will present a charge against it...... central theories in normative ethics. I will focus on Scanlon’s discussion in particular because it affords us with two criteria for the assessment of the importance for a person of a value-concept such as well-being. I will claim that much of Scanlon’s case rests on the idea that well......-being is an inclusive good, a good constituted by other things that are good in and for themselves. Then, I will put forward a case against Scanlon’s challenge by (1) showing that inclusiveness, when properly understood, does not lead to the conclusion Scanlon is led to and (2) showing that on at least the reading...

  15. From Burnout to Wellness: A Professional Imperative.

    Science.gov (United States)

    Golub, Justin S; Johns, Michael M

    2018-03-01

    Professional burnout is a barrier to physician wellness. Burnout is prevalent across medicine, and otolaryngology as a specialty ranks near the mean. We review burnout levels in various subgroups of otolaryngology, including academic chairs, faculty, and residents. Risk factors of burnout are discussed, which differ by subgroup. Finally, we propose measures that could help minimize burnout and promote healthy and satisfying careers.

  16. Homeownership and subjective well-being

    DEFF Research Database (Denmark)

    Bloze, Gintautas; Skak, Morten

    Favouring homeownership is an important part of housing policies in many countries. Although this may be explained by the preferences of the majority of voters, it may also be because homeownership is believed to have positive effects on individuals’ behaviour and welfare. Previous research seems...... and subjective well-being....

  17. Feasibility study on internal well measurements

    Energy Technology Data Exchange (ETDEWEB)

    None

    1977-07-01

    Various problems concerning the logging of geothermal wells were discussed. The topics included chemical logging apparatus: high temperature fracture logging equipment; slope meters for assessing stratigraphic traps; bottom samplers and pressure testers; cable materials; and systems for data processing and retrieval.

  18. Liquid Observation Well (LOW) Functional Design

    International Nuclear Information System (INIS)

    Paul, B.

    1995-01-01

    This document presents the Functional Design Criteria for installing Liquid Observation Wells (LOWS) into single-shell tanks containing either ferrocyanide or organic waste. The LOWs will be designed to accommodate the deployment of gamma, neutron, and electromagnetic induction probes and to interface with the existing tank structure and environment

  19. Marginal Expense Oil Well Wireless Surveillance (MEOWWS)

    Energy Technology Data Exchange (ETDEWEB)

    Nelson, Donald G.

    2002-03-11

    The objective of this study was to identify and field test a new, low cost, wireless oil well surveillance system. A variety of suppliers and technologies were considered. One supplier and system was chosen that was low cost, new to the oil field, and successfully field tested.

  20. Dry Well Storage Facility conceptual design study

    International Nuclear Information System (INIS)

    1979-02-01

    The Dry Well Storage Facility described is assumed to be located adjacent to or near a Spent Fuel Receiving and Packaging Facility and/or a Packaged Fuel Transfer Facility. Performance requirements, quality levels and codes and standards, schedule and methods of performance, special requirements, quality assurance program, and cost estimate are discussed. Appendices on major mechanical equipment and electric power requirements are included

  1. Dry Well Storage Facility conceptual design study

    Energy Technology Data Exchange (ETDEWEB)

    1979-02-01

    The Dry Well Storage Facility described is assumed to be located adjacent to or near a Spent Fuel Receiving and Packaging Facility and/or a Packaged Fuel Transfer Facility. Performance requirements, quality levels and codes and standards, schedule and methods of performance, special requirements, quality assurance program, and cost estimate are discussed. Appendices on major mechanical equipment and electric power requirements are included.

  2. Well-Being on Planet Earth

    Directory of Open Access Journals (Sweden)

    Ed Diener

    2009-12-01

    Full Text Available The Gallup World Poll allows a look at how humanity is flourishing, based on the answers of survey respondents sampled from across the globe. Several conclusions are clear. First, how people are doing depends enormously on the society in which they live, and nations vary from doing very well to extremely poorly. In terms of subjective well-being, nations vary greatly, in both judgments of overall life and in positive and negative emotions. The best predictors of global life judgments were income and ownership of modern conveniences, whereas the best predictors of emotions were social factors such as the control of corruption and being able to count on others, and personal factors such as learning new things and being able to control one’s day. Thus, the answer to the question of whether money makes people happy must be qualified by the measure of well-being that is being used. It is proposed that systematic measures of well-being across and within nations would allow individuals, leaders, and policy makers to make better decisions.

  3. Does Globalization Affect Human Well-Being?

    Science.gov (United States)

    Tsai, Ming-Chang

    2007-01-01

    The prevailing theorizing of globalization's influence of human well-being suggests to assess both the favorable and unfavorable outcomes. This study formulates a dialectical model, adopts a comprehensive globalization measure and uses a three-wave panel data during 1980-2000 to empirically test direct and indirect effects of global flows' human…

  4. Persuasion = Stating and Arguing Claims Well

    Science.gov (United States)

    Lapp, Diane; Fisher, Douglas

    2012-01-01

    Inside a ninth-grade classroom, we witness one teacher's very intentional instructional attempts that resulted in her students being able to convey well-crafted reasoning and text-supported evidence to mount persuasive arguments. Through personal examples and Internet resources, the teacher concretized pathos, logos, and ethos. The teacher and…

  5. Educating for Well-Being and Autonomy

    Science.gov (United States)

    Cuypers, Stefaan E.; Haji, Ishtiyaque

    2008-01-01

    Liberals champion the view that promoting autonomy--seeing to it that our children develop into individuals who are self-governing in the conduct of their lives--is a vital aim of education, though one generally accredited as being subsidiary to well-being. Our prime goal in this article is to provide a partial validation of this liberal ideal…

  6. Wellness of Minority Female Counselor Educators

    Science.gov (United States)

    Shillingford, M. Ann; Trice-Black, Shannon; Butler, S. Kent

    2013-01-01

    Minority female counselor educators are faced with numerous challenges. This qualitative study revealed that for female minority counselor educators, these challenges continue to negatively affect their professional and personal experiences. It is through operational wellness practices and optimal balance and functioning that minority female…

  7. Animal behavior and well-being symposium

    NARCIS (Netherlands)

    Koolhaas, J.M.; Reenen, van C.G.

    2016-01-01

    This paper will argue that understanding animal welfare and the individual vulnerability to stress-related disease requires a fundamental understanding of functional individual variation as it occurs in nature as well as the underlying neurobiology and neuroendocrinology. Ecological studies in

  8. Spectroscopy of GaAs quantum wells

    International Nuclear Information System (INIS)

    West, L.C.

    1985-07-01

    A new type of optical dipole transition in GaAs quantum wells has been observed. The dipole occurs between two envelope states of the conduction band electron wavefunction, and is called a quantum well envelope state transition (QWEST). The QWEST is observed by infrared absorption in three different samples with quantum well thicknesses 65, 82, and 92 A and resonant energies of 152, 121, and 108 MeV, respectively. The oscillator strength is found to have values of over 12, in good agreement with prediction. The linewidths are seen as narrow as 10 MeV at room temperature and 7 MeV at low temperature, thus proving a narrow line resonance can indeed occur between transitions of free electrons. Techniques for the proper growth of these quantum well samples to enable observation of the QWEST have also been found using (AlGa)As compounds. This QWEST is considered to be an ideal material for an all optical digital computer. The QWEST can be made frequency matched to the inexpensive Carbon Dioxide laser with an infrared wavelength of 10 microns. The nonlinearity and fast relaxation time of the QWEST indicate a logic element with a subpicosecond switch time can be built in the near future, with a power level which will eventually be limited only by the noise from a lack of quanta to above approximately 10 microwatts. 64 refs., 35 figs., 6 tabs

  9. The nuclear magnetic resonance well logging

    International Nuclear Information System (INIS)

    Zhang Yumin; Shen Huitang

    2003-01-01

    In this paper, the characteristic of the nuclear magnetic resonance logging is described at first. Then its development and its principle is presented. Compared with the nuclear magnetic resonance spectrometer, the magnet techniques is the first question that we must solve in the manufacture of the NMR well logging

  10. Spectroscopy of GaAs quantum wells

    Energy Technology Data Exchange (ETDEWEB)

    West, L.C.

    1985-07-01

    A new type of optical dipole transition in GaAs quantum wells has been observed. The dipole occurs between two envelope states of the conduction band electron wavefunction, and is called a quantum well envelope state transition (QWEST). The QWEST is observed by infrared absorption in three different samples with quantum well thicknesses 65, 82, and 92 A and resonant energies of 152, 121, and 108 MeV, respectively. The oscillator strength is found to have values of over 12, in good agreement with prediction. The linewidths are seen as narrow as 10 MeV at room temperature and 7 MeV at low temperature, thus proving a narrow line resonance can indeed occur between transitions of free electrons. Techniques for the proper growth of these quantum well samples to enable observation of the QWEST have also been found using (AlGa)As compounds. This QWEST is considered to be an ideal material for an all optical digital computer. The QWEST can be made frequency matched to the inexpensive Carbon Dioxide laser with an infrared wavelength of 10 microns. The nonlinearity and fast relaxation time of the QWEST indicate a logic element with a subpicosecond switch time can be built in the near future, with a power level which will eventually be limited only by the noise from a lack of quanta to above approximately 10 microwatts. 64 refs., 35 figs., 6 tabs.

  11. African American Women Counselors, Wellness, and Spirituality

    Science.gov (United States)

    Knowles, Debora; Bryant, Rhonda M.

    2011-01-01

    Given their tremendous professional responsibilities, professional counselors face daunting challenges to remaining healthy and avoiding role stress and overload. This article explores the intersection of race, gender, wellness, and spirituality in the self-care of African American women counselors. The authors give particular attention to…

  12. Help Your Child Learn To Write Well.

    Science.gov (United States)

    Office of Educational Research and Improvement (ED), Washington, DC.

    Addressing parents, this pamphlet describes ways to help children learn to write well and thereby excel in school, enjoy self-expression, and become more self-reliant. Writing is discussed as a practical, job-related, stimulating, social, and therapeutic activity that receives inadequate attention in many schools. It is emphasized that writing is…

  13. Horizontal well impact on heavy oil supply

    International Nuclear Information System (INIS)

    Bowers, B.; Bielecki, J.; Hu, J.; Wall, B.; Drummond, K.

    1993-01-01

    Horizontal wells can take advantage of gravity drainage mechanisms, which can be important in conventional heavy oil and bitumen recovery. Horizontal drilling will impact on the development of established conventional heavy oil pools by infill drilling and application of enhanced recovery techniques. There will also be an impact on the development of extensions to established and newly discovered heavy oil pools, as well as a major impact on development of bitumen resources. To assess the impact of horizontal drilling on heavy oil supply, high-impact and low-impact scenarios were evaluated under specified oil-price assumptions for four heavy oil areas in Saskatchewan and Alberta. Horizontal well potential for infill drilling, waterflood projects, and thermal projects was assessed and estimates were made of such developments as reserves additions and heavy oil development wells under the two scenarios. In the low case, projected supply of conventional heavy oil and bitumen stabilizes at a level in the 90,000-94,000 m 3 /d after 1994. In the high case, overall supply continuously grows from 80,000 m 3 /d in 1992 to 140,000 m 3 /d in 2002. Through application of horizontal drilling, reserves additions in western Canada could be improved by ca 100 million m 3 by 2002. 14 figs., 6 tabs

  14. Permanent downhole seismic sensors in flowing wells

    NARCIS (Netherlands)

    Jaques, P.; Ong, H.; Jupe, A.; Brown, I.; Jansenns, M.

    2003-01-01

    It is generally accepted that the 'Oilfield of the Future' will incorporate distributed permanent downhole seismic sensors in flowing wells. However the effectiveness of these sensors will be limited by the extent to which seismic signals can be discriminated, or de-coupled, from flow induced

  15. Warren Hunt to test granite well

    International Nuclear Information System (INIS)

    Harvie, W.

    1996-01-01

    Various theories which purport to explain the existence of the Alberta oil sands, were discussed briefly. One theory, held among others by Warren Hunt, speculates that oil is formed deep in the Precambrian basement and not in the higher sedimentary rock. According to this theory, methane in the crust is the abiogenic product that results from hydrogen reacting with silicon carbide in the lower mantle. As it rises through the fractures, it encounters the microbiota, and hydrogen is stripped away making larger molecules until only bitumen remains. Hunt and other adherents of this theory believe that hydrocarbon reservoirs are replenished as oil is produced, hence there is no end to the world's oil supply. This theory is about to be tested by retesting a granite well near Fort McMurray, which was suspended in September 1994, when funding dried up. Kaleeda Enterprises, owners of the well, believe that the well bottom is currently in a granite pool, and oil will be found by deepening the well to 2,150 metres from the current 1,650 metres. While this is not universally accepted, if true, the abiogenic theory would go a long way towards explaining the origin of the oil sands

  16. Mixed biexcitons in single quantum wells

    DEFF Research Database (Denmark)

    Wagner, Hans Peter; Langbein, Wolfgang Werner; Hvam, Jørn Märcher

    1999-01-01

    Biexcitonic complexes in a ZnSe single quantum well are investigated by spectrally resolved four-wave mixing (FWM). The formation of heavy-heavy-hole XXh and of mixed heavy-light-hole XXm biexcitons showing binding energies of Delta(h) = 4.8 meV and Delta(m)= 2.8 meV is identified by polarization...

  17. Subjective Well-Being Around Retirement

    NARCIS (Netherlands)

    Abolhassani, Marzieh; Alessie, Rob

    This paper studies the effect of both retirement and unemployment on life satisfaction, using subjective satisfaction indicators from the German Socio-Economic Panel. Moreover, we analyze how accurate individuals anticipate changes in satisfaction around retirement, as well as the correlation

  18. On Computability and Triviality of Well Groups

    Czech Academy of Sciences Publication Activity Database

    Franek, Peter; Krčál, M.

    2016-01-01

    Roč. 56, č. 1 (2016), s. 126-164 ISSN 0179-5376 R&D Projects: GA ČR GA15-14484S Keywords : nonlinear equations * robustness * well groups * computational topology * obstruction theory * homotopy theory Subject RIV: BA - General Mathematics Impact factor: 0.724, year: 2016

  19. Wellness health care and the architectural environment.

    Science.gov (United States)

    Verderber, S; Grice, S; Gutentag, P

    1987-01-01

    The stress management-wellness health care environment is emerging as a distinct facility type in the 1980s. Yet the idea is not a new one, with roots based in the Greek Asklepieon dating from 480 B.C. This and later Western transformations for health promotion embraced the therapeutic amenity inherent in meditation, solace and communality with nature based on the premise that the need for refuge from the stress inherent in one's daily life is deep-rooted in humans. A two-phase study is reported on wellness health care provider priorities, relative to the architectural features of stress-wellness centers. Representatives of 11 health care organizations responded to a telephone survey questionnaire, and 128 respondents completed a user needs questionnaire. Four major issues were addressed: image and appearance, location and setting, services provided and costs, and patterns of use. Convenience to one's place of work, a balanced mixture of clinical and nonclinical programs, a noninstitutional retreat-like environment, and membership cost structures were found to be major user considerations with respect to planning and design concepts for wellness health care environments. Directions for further research are discussed.

  20. Thermally stimulating mechanically-lifted well production

    Energy Technology Data Exchange (ETDEWEB)

    Richardson, E.A.; Hinson, R.A.

    1984-06-19

    A well which is producing slowly by artificial lift can be economically heated by first inflowing a nitrogen-generating solution, to form a pool of reacting liquid near the uppermost opening into the reservoir, then inflowing more solution while artificially-lifting liquid from near the lowermost opening into the reservoir at a rate substantially equalling the inflow rate.

  1. Motion in an Asymmetric Double Well

    OpenAIRE

    Brizard, Alain J.; Westland, Melissa C.

    2016-01-01

    The problem of the motion of a particle in an asymmetric double well is solved explicitly in terms of the Weierstrass and Jacobi elliptic functions. While the solution of the orbital motion is expressed simply in terms of the Weierstrass elliptic function, the period of oscillation is more directly expressed in terms of periods of the Jacobi elliptic functions.

  2. Procrastination and well-being at work

    NARCIS (Netherlands)

    van Eerde, W.; Sirois, F.M.; Pychyl, T.A.

    2016-01-01

    This chapter provides an overview of the issues that are important to procrastination and well-being at work. In comparison with academic procrastination, many more issues need to be taken into consideration. These are discussed with the help of a conceptual framework that identifies characteristics

  3. Social networking for well-being

    NARCIS (Netherlands)

    Steen, M.G.D.; Aarts, O.A.J.; Broekman, C.C.M.T.; Prins, S.C.L.

    2011-01-01

    In this paper, we present some of the work that is being done in the WeCare project (in the AAL programme). The project’s goal is to introduce social networking services in the lives of older people, in order to improve their well-being. Participation in social networks, both online and ‘in real

  4. Auto Detection For High Level Water Content For Oil Well

    Science.gov (United States)

    Janier, Josefina Barnachea; Jumaludin, Zainul Arifin B.

    2010-06-01

    Auto detection of high level water content for oil well is a system that measures the percentage of water in crude oil. This paper aims to discuss an auto detection system for measuring the content of water level in crude oil which is applicable for offshore and onshore oil operations. Data regarding water level content from wells can be determined by using automation thus, well with high water level can be determined immediately whether to be closed or not from operations. Theoretically the system measures the percentage of two- fluid mixture where the fluids have different electrical conductivities which are water and crude oil. The system made use of grid sensor which is a grid pattern like of horizontal and vertical wires. When water occupies the space at the intersection of vertical and horizontal wires, an electrical signal is detected which proved that water completed the circuit path in the system. The electrical signals are counted whereas the percentage of water is determined from the total electrical signals detected over electrical signals provided. Simulation of the system using the MultiSIM showed that the system provided the desired result.

  5. Consortium for Petroleum & Natural Gas Stripper Wells

    Energy Technology Data Exchange (ETDEWEB)

    Morrison, Joel [Pennsylvania State Univ., University Park, PA (United States)

    2011-12-01

    The United States has more oil and gas wells than any other country. As of December 31, 2004, there were more than half a million producing oil wells in the United States. That is more than three times the combined total for the next three leaders: China, Canada, and Russia. The Stripper Well Consortium (SWC) is a partnership that includes domestic oil and gas producers, service and supply companies, trade associations, academia, the Department of Energy’s Strategic Center for Natural Gas and Oil (SCNGO) at the National Energy Technology Laboratory (NETL), and the New York State Energy Research and Development Authority (NYSERDA). The Consortium was established in 2000. This report serves as a final technical report for the SWC activities conducted over the May 1, 2004 to December 1, 2011 timeframe. During this timeframe, the SWC worked with 173 members in 29 states and three international countries, to focus on the development of new technologies to benefit the U.S. stripper well industry. SWC worked with NETL to develop a nationwide request-for-proposal (RFP) process to solicit proposals from the U.S. stripper well industry to develop and/or deploy new technologies that would assist small producers in improving the production performance of their stripper well operations. SWC conducted eight rounds of funding. A total of 132 proposals were received. The proposals were compiled and distributed to an industry-driven SWC executive council and program sponsors for review. Applicants were required to make a formal technical presentation to the SWC membership, executive council, and program sponsors. After reviewing the proposals and listening to the presentations, the executive council made their funding recommendations to program sponsors. A total of 64 projects were selected for funding, of which 59 were fully completed. Penn State then worked with grant awardees to issue a subcontract for their approved work. SWC organized and hosted a total of 14 meetings

  6. Play or hard work: unpacking well-being at preschool.

    Science.gov (United States)

    Kennedy-Behr, A; Rodger, S; Mickan, S

    2015-03-01

    Well-being or quality of life is thought to give a more accurate picture of the impact a condition has on day-to-day functioning than traditional outcome measures. This study sought to examine the relationship between engagement in play and well-being for preschool children with and without developmental coordination disorder (DCD). A quasi-experimental design was used with two independent groups of preschool children aged 4-6 years with (n=32) and without (n=31) probable DCD. Play skills were assessed using the Play Observation Scale based on 30min of videotape of free-play at preschool. Well-being was assessed using a parent-proxy version of the Revised Children Quality of Life Questionnaire (KINDL(R)). Spearman rho correlations were performed to examine the relationship between play and well-being. Well-being at preschool was significantly lower for the children in the DCD group however overall well-being was not significantly different. Engagement in type of social play (solitary, parallel or group) was found to predict well-being for the typically developing children. For the children with DCD, engagement in group play was not associated with well-being. An explanation for this difference may be that children with DCD may not experience free-play at preschool as "play" but rather as hard work. Further research is needed to determine why children with DCD experience lower well-being at preschool than their peers and to investigate children's perceptions of free-play. This may enable teachers and therapists to better support children with DCD in the preschool environment. Copyright © 2014 Elsevier Ltd. All rights reserved.

  7. Horizontal well geosteering: planning, monitoring and geosteering

    Energy Technology Data Exchange (ETDEWEB)

    Mottahedeh, R.

    2008-11-15

    The geosteering process should not be seen as a process solely designated for the most expensive or highest profile horizontal wells. It can be regarded as another tool for improving the odds of success by remaining in the productive zone for longer periods of drilling. Also, it can be used to optimize the positioning of a horizontal wellbore in the sweet spots within the reservoir. The current process has been successfully applied to large infill drilling programs at over 40 wells for heavy oil, tight gas, conventional oil and gas plays and for Mannville coalbed methane (CBM) in Alberta. The service has been provided irrespective of location, as long as the Wellsite Information Transfer Standard Markup Language (WITSML)/Pason Satellite service is available. Exploration and production (E&P) companies are continuously being driven to reduce the cost per barrel of oil equivalent (BOE). E&P needs and technologies related to advanced and accurate directional drilling, communication of vital data in real-time through the internet, as well as reduced cycle time associated with advanced forward-looking 3D geo-modelling and visualization technologies, are currently converging. The motivation to reduce costs has been responsible for advancing the horizontal well geosteering process by incorporating the Measurement While Drilling (MWD) tool into mainstream drilling practices. The universal economic benefits gained can be found in all resource play types (conventional oil and gas, heavy oil, tight gas and coalbed methane). It is important to note that the process described here is essentially collaborative. For best results, there must be cooperation between the E&P operational geologist, wellsite geologist, directional driller and geo-modelling staff, as well as the engineering consultants involved in the project (i.e. the team as a whole).

  8. N Springs pump-and-treat well design. Revision 2

    International Nuclear Information System (INIS)

    Borghese, J.V.; Edrington, R.S.; Walker, L.D.

    1995-06-01

    Past practices in the 100-N Area have resulted in contamination of soils and underlying groundwater. The release of large volumes of water to the 1301-N and 1325-N liquid waste disposal facilities (LWDF) has resulted in transport of contaminants, particularly 90 Sr, to the Columbia River. Since the shutdown of N Reactor in 1987, the releases to the LWDF have been discontinued. Results from groundwater monitoring programs indicate that the principal contaminants in the groundwater downgradient of the 1301-N and 1325-N cribs are tritium and 90 Sr. Other radionuclides are also present, but these are below regulatory limits. The scope of this document is to provide guidelines and design criteria for two extraction wells, one injection well, and rehabilitation of well 199-N-14. The new extraction and injection wells will be drilled to the bottom of the unconfined aquifer and completed with a fully penetrating screen. The extraction wells will be screened across the entire aquifer so that water samples can be collected at discrete intervals. The results of sample analyses and analysis of geophysical logs should indicate zones of higher contamination. Once this determination has been made, the zone of higher contamination can be packed off within the well so that water is pumped from this zone

  9. The relations among well-being outcomes, religiosity, and personality

    Directory of Open Access Journals (Sweden)

    Aghababaei Naser

    2015-09-01

    Full Text Available A major focus of attention in psychology has been on the consequences and determinants of well-being. Religiosity and personality have both been shown to predict mental health and well-being, but the two predictors have not often been investigated together. In 4 studies involving 7 surveys (total N = 1,530 in various social and religious contexts, the relations among well-being, religious orientation, and personality factors were studied. Results showed that Extraversion was the single strongest correlate of higher levels of subjective and psychological well-being. Religiosity had null or weak positive relationships with well-being, and managed to explain variance in some aspects of positive functioning beyond personality factors. The null or week relationship of religiosity with well-being beyond personality was consistent across the HEXACO and the Big Five models of personality structure. It has been suggested that religion is relatively more important for eudaimonic than for hedonic way of living.

  10. Determining Optimal Decision Version

    Directory of Open Access Journals (Sweden)

    Olga Ioana Amariei

    2014-06-01

    Full Text Available In this paper we start from the calculation of the product cost, applying the method of calculating the cost of hour- machine (THM, on each of the three cutting machines, namely: the cutting machine with plasma, the combined cutting machine (plasma and water jet and the cutting machine with a water jet. Following the calculation of cost and taking into account the precision of manufacturing of each machine, as well as the quality of the processed surface, the optimal decisional version needs to be determined regarding the product manufacturing. To determine the optimal decisional version, we resort firstly to calculating the optimal version on each criterion, and then overall using multiattribute decision methods.

  11. Weak antilocalization and spin precession in quantum wells

    Science.gov (United States)

    Knap, W.; Skierbiszewski, C.; Zduniak, A.; Litwin-Staszewska, E.; Bertho, D.; Kobbi, F.; Robert, J. L.; Pikus, G. E.; Pikus, F. G.; Iordanskii, S. V.; Mosser, V.; Zekentes, K.; Lyanda-Geller, Yu. B.

    1996-02-01

    The results of magnetoconductivity measurements in GaxIn1-xAs quantum wells are presented. The observed magnetoconductivity appears due to the quantum interference, which lead to the weak localization effect. It is established that the details of the weak localization are controlled by the spin splitting of electron spectra. A theory is developed that takes into account both linear and cubic in electron wave-vector terms in spin splitting, which arise due to the lack of inversion center in the crystal, as well as the linear terms that appear when the well itself is asymmetric. It is established that, unlike spin-relaxation rate, contributions of different terms into magnetoconductivity are not additive. It is demonstrated that in the interval of electron densities under investigation [(0.98-1.85)×1012 cm-2 ] all three contributions are comparable and have to be taken into account to achieve a good agreement between the theory and experiment. The results obtained from comparison of the experiment and the theory have allowed us to determine what mechanisms dominate the spin-relaxation in quantum wells and to improve the accuracy of determination of spin-splitting parameters in A3B5 crystals and two-dimensional structures.

  12. Transient well flow in layered aquifer systems: the uniform well-face drawdown solution

    Science.gov (United States)

    Hemker, C. J.

    1999-11-01

    Previously a hybrid analytical-numerical solution for the general problem of computing transient well flow in vertically heterogeneous aquifers was proposed by the author. The radial component of flow was treated analytically, while the finite-difference technique was used for the vertical flow component only. In the present work the hybrid solution has been modified by replacing the previously assumed uniform well-face gradient (UWG) boundary condition in such a way that the drawdown remains uniform along the well screen. The resulting uniform well-face drawdown (UWD) solution also includes the effects of a finite diameter well, wellbore storage and a thin skin, while partial penetration and vertical heterogeneity are accommodated by the one-dimensional discretization. Solutions are proposed for well flow caused by constant, variable and slug discharges. The model was verified by comparing wellbore drawdowns and well-face flux distributions with published numerical solutions. Differences between UWG and UWD well flow will occur in all situations with vertical flow components near the well, which is demonstrated by considering: (1) partially penetrating wells in confined aquifers, (2) fully penetrating wells in unconfined aquifers with delayed response and (3) layered aquifers and leaky multiaquifer systems. The presented solution can be a powerful tool for solving many well-hydraulic problems, including well tests, flowmeter tests, slug tests and pumping tests. A computer program for the analysis of pumping tests, based on the hybrid analytical-numerical technique and UWG or UWD conditions, is available from the author.

  13. Maximizing probable oil field profit: uncertainties on well spacing

    International Nuclear Information System (INIS)

    MacKay, J.A.; Lerche, I.

    1997-01-01

    The influence of uncertainties in field development costs, well costs, lifting costs, selling price, discount factor, and oil field reserves are evaluated for their impact on assessing probable ranges of uncertainty on present day worth (PDW), oil field lifetime τ 2/3 , optimum number of wells (OWI), and the minimum (n-) and maximum (n+) number of wells to produce a PDW ≥ O. The relative importance of different factors in contributing to the uncertainties in PDW, τ 2/3 , OWI, nsub(-) and nsub(+) is also analyzed. Numerical illustrations indicate how the maximum PDW depends on the ranges of parameter values, drawn from probability distributions using Monte Carlo simulations. In addition, the procedure illustrates the relative importance of contributions of individual factors to the total uncertainty, so that one can assess where to place effort to improve ranges of uncertainty; while the volatility of each estimate allows one to determine when such effort is needful. (author)

  14. Environmental volunteer well-being: Managers’ perception and actual well-being of volunteers

    Science.gov (United States)

    Kragh, Gitte; Stafford, Rick; Curtin, Susanna; Diaz, Anita

    2016-01-01

    Background: Environmental volunteering can increase well-being, but environmental volunteer well-being has rarely been compared to participant well-being associated with other types of volunteering or nature-based activities. This paper aims to use a multidimensional approach to well-being to explore the immediately experienced and later remembered well-being of environmental volunteers and to compare this to the increased well-being of participants in other types of nature-based activities and volunteering. Furthermore, it aims to compare volunteer managers’ perceptions of their volunteers’ well-being with the self-reported well-being of the volunteers. Methods: Onsite surveys were conducted of practical conservation and biodiversity monitoring volunteers, as well as their control groups (walkers and fieldwork students, respectively), to measure general well-being before their nature-based activity and activity-related well-being immediately after their activity. Online surveys of current, former and potential volunteers and volunteer managers measured remembered volunteering-related well-being and managers’ perceptions of their volunteers’ well-being. Data were analysed based on Seligman’s multidimensional PERMA (‘positive emotion’, ‘engagement’, ‘positive relationship’, ‘meaning’, ‘achievement’) model of well-being. Factor analysis recovered three of the five PERMA elements, ‘engagement’, ‘relationship’ and ‘meaning’, as well as ‘negative emotion’ and ‘health’ as factors. Results: Environmental volunteering significantly improved positive elements and significantly decreased negative elements of participants’ immediate well-being, and it did so more than walking or student fieldwork. Even remembering their volunteering up to six months later, volunteers rated their volunteering-related well-being higher than volunteers rated their well-being generally in life. However, volunteering was not found to have an

  15. Environmental volunteer well-being: Managers' perception and actual well-being of volunteers.

    Science.gov (United States)

    Kragh, Gitte; Stafford, Rick; Curtin, Susanna; Diaz, Anita

    2016-01-01

    Background : Environmental volunteering can increase well-being, but environmental volunteer well-being has rarely been compared to participant well-being associated with other types of volunteering or nature-based activities. This paper aims to use a multidimensional approach to well-being to explore the immediately experienced and later remembered well-being of environmental volunteers and to compare this to the increased well-being of participants in other types of nature-based activities and volunteering. Furthermore, it aims to compare volunteer managers' perceptions of their volunteers' well-being with the self-reported well-being of the volunteers. Methods : Onsite surveys were conducted of practical conservation and biodiversity monitoring volunteers, as well as their control groups (walkers and fieldwork students, respectively), to measure general well-being before their nature-based activity and activity-related well-being immediately after their activity. Online surveys of current, former and potential volunteers and volunteer managers measured remembered volunteering-related well-being and managers' perceptions of their volunteers' well-being. Data were analysed based on Seligman's multidimensional PERMA ('positive emotion', 'engagement', 'positive relationship', 'meaning', 'achievement') model of well-being. Factor analysis recovered three of the five PERMA elements, 'engagement', 'relationship' and 'meaning', as well as 'negative emotion' and 'health' as factors. Results : Environmental volunteering significantly improved positive elements and significantly decreased negative elements of participants' immediate well-being, and it did so more than walking or student fieldwork. Even remembering their volunteering up to six months later, volunteers rated their volunteering-related well-being higher than volunteers rated their well-being generally in life. However, volunteering was not found to have an effect on overall mean well-being generally in life

  16. Well Head Protection Areas For Public Non-Community Water Supply Wells In New Jersey

    Data.gov (United States)

    U.S. Environmental Protection Agency — A Well Head Protection Area for a Public Non-Community Water Supply Well (PNCWS) in New Jersey is a map area calculated around a Public Non-Community Water Supply...

  17. Employee entitlements during pregnancy and maternal psychological well-being.

    Science.gov (United States)

    Cooklin, Amanda R; Rowe, Heather J; Fisher, Jane R W

    2007-12-01

    Antenatal psychological well-being is multifactorially determined, including by social circumstances. Evidence suggests that workplace conditions are salient determinants of mental health, but it is not known whether employment conditions influence antenatal psychological well-being. To investigate the relationship between employment conditions and antenatal psychological well-being in Australian women. A sociodemographically diverse consecutive cohort of employed nulliparous women was recruited in late pregnancy. Data were collected by a structured interview assessing sociodemographic characteristics, employment arrangements, experience of pregnancy-related discrimination, and access to maternity leave entitlements. Participants completed two standardised psychometric measures of maternal mood: the Edinburgh Depression Scale (EDS) and the Profile of Mood States (PoMS). Comparisons of self-reported mood were made between women by experience of workplace adversity, using a composite measure of workplace events. Of 205 eligible women, 165 agreed to participate. Of these, 114 of 165 (69%) reported at least one form of workplace adversity during pregnancy. More women without private health insurance (78%) reported workplace adversity than those who were privately insured (57%) (chi2(1)=6.95, P=0.008). Women experiencing workplace adversity had significantly worse psychological well-being as indicated by the EDS score (7.7+/-5.1) than those who were experiencing no workplace adversity (5.5+/-3.4), mean difference (95% CI)=-2.2 (-3.7 to -0.8), P=0.003. Similar results were reported for the PoMS. Workplace adversity during pregnancy is associated with poorer maternal psychological well-being. Workplace conditions and entitlements are salient factors for consideration in assessments of antenatal psychosocial well-being.

  18. Growth goals, maturity, and well-being.

    Science.gov (United States)

    Bauer, Jack J; McAdams, Dan P

    2004-01-01

    In 2 studies (125 college students and 51 adults), 2 forms of growth goals (exploratory and intrinsic) were compared with 2 forms of personality development (social-cognitive maturity and social-emotional well-being). Participants whose narratives of major life goals emphasized conceptual exploration were especially likely to have high levels of maturity (measured as ego development; J. Loevinger, 1976), whereas those whose goals emphasized intrinsic interests (K. M. Sheldon & T. Kasser, 1995) were especially likely to have high levels of well-being. Participants who had coherent hierarchies of growth goals on the levels of major life goals and everyday goals were especially likely to have high levels of personality development. Finally, growth goals accounted for some relationships between age and personality development. Growth goals are discussed in terms of intentional self-development and specific developmental paths. (c) 2003 APA

  19. Monitoring system in reactor dry well

    International Nuclear Information System (INIS)

    Horie, Akira; Suzuki, Shun-ichi; Yamamoto, Shinji; Kubokawa, Toshihiko; Takagi, Sakae; Yokosawa, Makoto.

    1991-01-01

    A failed portion of a dry well in a BWR type reactor is monitored and identified from a remote place by a simple structure. That is, laser beams are irradiated under scanning to a portion to be monitored. Then, the reflection light is monitored by a light receiving and monitoring system, and abnormalities such as defects or leaks of monitored portion are optically detected by a remote viewing equipment. With such a constitution, the portion to be monitored in poor operation circumstances of the reactor dry well can always be monitored efficiently from a remote place. The device of the present invention does not undergo the effect of radiation noises, etc. and it is excellent in heat resistance and radiation resistance. (I.S.)

  20. Well-Tempered Metadynamics Converges Asymptotically

    Science.gov (United States)

    Dama, James F.; Parrinello, Michele; Voth, Gregory A.

    2014-06-01

    Metadynamics is a versatile and capable enhanced sampling method for the computational study of soft matter materials and biomolecular systems. However, over a decade of application and several attempts to give this adaptive umbrella sampling method a firm theoretical grounding prove that a rigorous convergence analysis is elusive. This Letter describes such an analysis, demonstrating that well-tempered metadynamics converges to the final state it was designed to reach and, therefore, that the simple formulas currently used to interpret the final converged state of tempered metadynamics are correct and exact. The results do not rely on any assumption that the collective variable dynamics are effectively Brownian or any idealizations of the hill deposition function; instead, they suggest new, more permissive criteria for the method to be well behaved. The results apply to tempered metadynamics with or without adaptive Gaussians or boundary corrections and whether the bias is stored approximately on a grid or exactly.