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Sample records for group discriminatory power

  1. The power of talk: developing discriminatory group norms through discussion.

    Science.gov (United States)

    Smith, Laura G E; Postmes, Tom

    2011-06-01

    Research has shown that group discussion can increase intergroup prejudice and discrimination. However, we know little about the process by which discussion has this effect. Therefore, four studies were conducted in a real-world context to investigate this process. Results suggest that discussing a negative societal stereotype (relative to individual rumination in Studies 1 and 3 and alternative discussions in Studies 2 and 3) increases intentions to engage in discrimination against the out-group target of the stereotype. This is mediated by the formation of an in-group norm which supports discrimination (Study 1) and the extent to which the discussion validates the stereotype (Study 2). A fourth study manipulated the extent to which consensus on the negative stereotype was reached through discussion. When the discussion ended in consensus, participants have greater intention to undertake collective action against the stereotyped out-group, mediated by a congruent in-group norm. These results provide evidence that the process by which discussion increases intergroup discrimination is via the formation of discriminatory local group norms. ©2010 The British Psychological Society.

  2. The power of talk : Developing discriminatory group norms through discussion

    NARCIS (Netherlands)

    Smith, Laura G. E.; Postmes, Tom

    Research has shown that group discussion can increase intergroup prejudice and discrimination. However, we know little about the process by which discussion has this effect. Therefore, four studies were conducted in a real-world context to investigate this process. Results suggest that discussing a

  3. The power of talk : Developing discriminatory group norms through discussion

    NARCIS (Netherlands)

    Smith, Laura G. E.; Postmes, Tom

    2011-01-01

    Research has shown that group discussion can increase intergroup prejudice and discrimination. However, we know little about the process by which discussion has this effect. Therefore, four studies were conducted in a real-world context to investigate this process. Results suggest that discussing a

  4. Reliability and discriminatory power of methods for dental plaque quantification

    Directory of Open Access Journals (Sweden)

    Daniela Prócida Raggio

    2010-04-01

    Full Text Available OBJECTIVE: This in situ study evaluated the discriminatory power and reliability of methods of dental plaque quantification and the relationship between visual indices (VI and fluorescence camera (FC to detect plaque. MATERIAL AND METHODS: Six volunteers used palatal appliances with six bovine enamel blocks presenting different stages of plaque accumulation. The presence of plaque with and without disclosing was assessed using VI. Images were obtained with FC and digital camera in both conditions. The area covered by plaque was assessed. Examinations were done by two independent examiners. Data were analyzed by Kruskal-Wallis and Kappa tests to compare different conditions of samples and to assess the inter-examiner reproducibility. RESULTS: Some methods presented adequate reproducibility. The Turesky index and the assessment of area covered by disclosed plaque in the FC images presented the highest discriminatory powers. CONCLUSION: The Turesky index and images with FC with disclosing present good reliability and discriminatory power in quantifying dental plaque.

  5. Residual soil DNA extraction increases the discriminatory power between samples.

    Science.gov (United States)

    Young, Jennifer M; Weyrich, Laura S; Clarke, Laurence J; Cooper, Alan

    2015-06-01

    Forensic soil analysis relies on capturing an accurate and reproducible representation of the diversity from limited quantities of soil; however, inefficient DNA extraction can markedly alter the taxonomic abundance. The performance of a standard commercial DNA extraction kit (MOBIO PowerSoil DNA Isolation kit) and three modified protocols of this kit: soil pellet re-extraction (RE); an additional 24-h lysis incubation step at room temperature (RT); and 24-h lysis incubation step at 55°C (55) were compared using high-throughput sequencing of the internal transcribed spacer I ribosomal DNA. DNA yield was not correlated with fungal diversity and the four DNA extraction methods displayed distinct fungal community profiles for individual samples, with some phyla detected exclusively using the modified methods. Application of a 24 h lysis step will provide a more complete inventory of fungal biodiversity, and re-extraction of the residual soil pellet offers a novel tool for increasing discriminatory power between forensic soil samples.

  6. DNA methylation mediates the discriminatory power of associative long-term memory in honeybees.

    Directory of Open Access Journals (Sweden)

    Stephanie D Biergans

    Full Text Available Memory is created by several interlinked processes in the brain, some of which require long-term gene regulation. Epigenetic mechanisms are likely candidates for regulating memory-related genes. Among these, DNA methylation is known to be a long lasting genomic mark and may be involved in the establishment of long-term memory. Here we demonstrate that DNA methyltransferases, which induce and maintain DNA methylation, are involved in a particular aspect of associative long-term memory formation in honeybees, but are not required for short-term memory formation. While long-term memory strength itself was not affected by blocking DNA methyltransferases, odor specificity of the memory (memory discriminatory power was. Conversely, perceptual discriminatory power was normal. These results suggest that different genetic pathways are involved in mediating the strength and discriminatory power of associative odor memories and provide, to our knowledge, the first indication that DNA methyltransferases are involved in stimulus-specific associative long-term memory formation.

  7. Functional ability among elderly people in three service settings: the discriminatory power of a new functional ability scale

    DEFF Research Database (Denmark)

    Avlund, K; Holstein, B E

    1998-01-01

    The purpose is to assess the discriminatory power of the Avlund scales: (1) by assessing the ability of the scales to discriminate between three different populations of elderly people, and (2) by studying groups with a poor fit between use of formal home care and functional ability. The study...... included (A) all residents in new sheltered housing facilities (response rate 68%, n = 102), (B) a random sample of users of home care (response rate 67%, n = 435), and (C) a random sample of individuals not using home care (response rate 74%, n = 501). All participants were 60+ years old. Data were...

  8. Water Polo Game-Related Statistics in Women’s International Championships: Differences and Discriminatory Power

    Science.gov (United States)

    Escalante, Yolanda; Saavedra, Jose M.; Tella, Victor; Mansilla, Mirella; García-Hermoso, Antonio; Dominguez, Ana M.

    2012-01-01

    The aims of this study were (i) to compare women’s water polo game-related statistics by match outcome (winning and losing teams) and phase (preliminary, classificatory, and semi-final/bronze medal/gold medal), and (ii) identify characteristics that discriminate performances for each phase. The game-related statistics of the 124 women’s matches played in five International Championships (World and European Championships) were analyzed. Differences between winning and losing teams in each phase were determined using the chi-squared. A discriminant analysis was then performed according to context in each of the three phases. It was found that the game-related statistics differentiate the winning from the losing teams in each phase of an international championship. The differentiating variables were both offensive (centre goals, power-play goals, counterattack goal, assists, offensive fouls, steals, blocked shots, and won sprints) and defensive (goalkeeper-blocked shots, goalkeeper-blocked inferiority shots, and goalkeeper-blocked 5-m shots). The discriminant analysis showed the game-related statistics to discriminate performance in all phases: preliminary, classificatory, and final phases (92%, 90%, and 83%, respectively). Two variables were discriminatory by match outcome (winning or losing teams) in all three phases: goals and goalkeeper-blocked shots. Key pointsThe preliminary phase that more than one variable was involved in this differentiation, including both offensive and defensive aspects of the game.The game-related statistics were found to have a high discriminatory power in predicting the result of matches with shots and goalkeeper-blocked shots being discriminatory variables in all three phases.Knowledge of the characteristics of women’s water polo game-related statistics of the winning teams and their power to predict match outcomes will allow coaches to take these characteristics into account when planning training and match preparation. PMID

  9. [Discriminatory power of variable number on tandem repeats loci for genotyping Mycobacterium tuberculosis strains in China].

    Science.gov (United States)

    Chen, H X; Cai, C; Liu, J Y; Zhang, Z G; Yuan, M; Jia, J N; Sun, Z G; Huang, H R; Gao, J M; Li, W M

    2017-06-10

    Objective: Using the standard genotype method, variable number of tandem repeats (VNTR), we constructed a VNTR database to cover all provinces and proposed a set of optimized VNTR loci combinations for each province, in order to improve the preventive and control programs on tuberculosis, in China. Methods: A total of 15 loci VNTR was used to analyze 4 116 Mycobacterium tuberculosis strains, isolated from national survey of Drug Resistant Tuberculosis, in 2007. Hunter-Gaston Index (HGI) was also used to analyze the discriminatory power of each VNTR site. A set combination of 12-VNTR, 10-VNTR, 8-VNTR and 5-VNTR was respectively constructed for each province, based on 1) epidemic characteristics of M. tuberculosis lineages in China, with high discriminatory power and genetic stability. Results: Through the completed 15 loci VNTR patterns of 3 966 strains under 96.36% (3 966/4 116) coverage, we found seven high HGI loci (including QUB11b and MIRU26) as well as low stable loci (including QUB26, MIRU16, Mtub21 and QUB11b) in several areas. In all the 31 provinces, we found an optimization VNTR combination as 10-VNTR loci in Inner Mongolia, Chongqing and Heilongjiang, but with 8-VNTR combination shared in other provinces. Conclusions: It is necessary to not only use the VNTR database for tracing the source of infection and cluster of M. tuberculosis in the nation but also using the set of optimized VNTR combinations in monitoring those local epidemics and M. tuberculosis (genetics in local) population.

  10. Discriminatory power of indicators predictors of visceral adiposity evaluated by computed tomography in adults and elderly individuals

    Directory of Open Access Journals (Sweden)

    Anna Karla Cameiro Roriz

    2014-06-01

    Full Text Available Introduction: Identifying anthropometric methods of abdominal adiposity, predictors of excess area of visceral adipose tissue (VAT allows rapid and low cost evaluation for the risk of cardiovascular diseases in the elderly. Objective: To evaluate the discriminatory power of anthropometric indicators for detection of excess of the area of VAT. Methods: Cross-sectional study comprising 194 adults and elderly individuals for comparison of both sexes and age groups. Anthropometric variables: waist-to-height Ratio (WHtR, waist-to-thigh Ratio (WTR, Abdominal Diameter Index (ADI and Sagittal Abdominal Diameter Height Index (SAD/Height. The VAT area was identified by computed tomography (CT. Analysis with the ROC curve. Results: There was a high correlation between the VAT area and most of the anthropometric indicators (p ≤ 0.001. Among elderly men, WHtR showed areas under the ROC curve over 0.90 and cutoff of 0.55 (sens: 85.7%; spec: 82.4%, PPV: 99.9%. For older women, the WHtR cutoff was 0.58 (sens: 81.0%; spec: 78.6%. For the SAD/Height, the areas under the ROC curve were ≥ 0.83 (p ≤ 0.01, with cutoffs of 0.12 for men and 0.13 for women. Conclusion: There was a strong discriminatory power of the anthropometric indicators abdominal visceral obesity. The WHtR and SAD/Height showed better performance to predict the VAT area of risk in elderly, without the need of measuring it by computed tomography.

  11. WATER POLO GAME-RELATED STATISTICS IN WOMEN'S INTERNATIONAL CHAMPIONSHIPS: DIFFERENCES AND DISCRIMINATORY POWER

    Directory of Open Access Journals (Sweden)

    Yolanda Escalante

    2012-09-01

    Full Text Available The aims of this study were (i to compare women's water polo game-related statistics by match outcome (winning and losing teams and phase (preliminary, classificatory, and semi-final/bronze medal/gold medal, and (ii identify characteristics that discriminate performances for each phase. The game-related statistics of the 124 women's matches played in five International Championships (World and European Championships were analyzed. Differences between winning and losing teams in each phase were determined using the chi-squared. A discriminant analysis was then performed according to context in each of the three phases. It was found that the game-related statistics differentiate the winning from the losing teams in each phase of an international championship. The differentiating variables were both offensive (centre goals, power-play goals, counterattack goal, assists, offensive fouls, steals, blocked shots, and won sprints and defensive (goalkeeper-blocked shots, goalkeeper-blocked inferiority shots, and goalkeeper-blocked 5-m shots. The discriminant analysis showed the game-related statistics to discriminate performance in all phases: preliminary, classificatory, and final phases (92%, 90%, and 83%, respectively. Two variables were discriminatory by match outcome (winning or losing teams in all three phases: goals and goalkeeper-blocked shots

  12. Discriminatory power of common genetic variants in personalized breast cancer diagnosis

    Science.gov (United States)

    Wu, Yirong; Abbey, Craig K.; Liu, Jie; Ong, Irene; Peissig, Peggy; Onitilo, Adedayo A.; Fan, Jun; Yuan, Ming; Burnside, Elizabeth S.

    2016-03-01

    Technology advances in genome-wide association studies (GWAS) has engendered optimism that we have entered a new age of precision medicine, in which the risk of breast cancer can be predicted on the basis of a person's genetic variants. The goal of this study is to evaluate the discriminatory power of common genetic variants in breast cancer risk estimation. We conducted a retrospective case-control study drawing from an existing personalized medicine data repository. We collected variables that predict breast cancer risk: 153 high-frequency/low-penetrance genetic variants, reflecting the state-of-the-art GWAS on breast cancer, mammography descriptors and BI-RADS assessment categories in the Breast Imaging Reporting and Data System (BI-RADS) lexicon. We trained and tested naïve Bayes models by using these predictive variables. We generated ROC curves and used the area under the ROC curve (AUC) to quantify predictive performance. We found that genetic variants achieved comparable predictive performance to BI-RADS assessment categories in terms of AUC (0.650 vs. 0.659, p-value = 0.742), but significantly lower predictive performance than the combination of BI-RADS assessment categories and mammography descriptors (0.650 vs. 0.751, p-value < 0.001). A better understanding of relative predictive capability of genetic variants and mammography data may benefit clinicians and patients to make appropriate decisions about breast cancer screening, prevention, and treatment in the era of precision medicine.

  13. [Evaluation of discriminatory power of molecular epidemiology techniques in Mycobacterium tuberculosis Venezuelan isolates].

    Science.gov (United States)

    Méndez, Marìa Victoria; León, Cristy; Escalona, Arnelly; Abadia, Edgar; Da Mata, Omaira; de Waard, Jacobus; Takiff, Howard Eugene

    2016-03-01

    The techniques of spoligotyping and mycobacterial interspersed repetitive unit and variable-number tandem repeat typing with 24 loci (MIRU-VNTR-24), have been used to study the molecular epidemiology of tuberculosis. The aim of this study was: to evaluate the discriminative power of MIRU-VNTR 24 loci alone and in association with spoligotyping in clinical isolates of M tuberculosis in Venezuela; the allelic diversity of the 24 loci; and the discriminative power for the combination of 24 and 15 loci, 12 traditional loci (12t), those with higher allelic diversity and a new combination named 12inv. We analyzed one set of 104 strains of different lineages and a second set of 431 strains belonging to the Latin-America and Mediterranean lineage (LAM) that is predominant in Venezuela. The determination of allelic diversity showed that 4052, 2163b, 424 y 2996 are highly discriminative. Clustering rates of MIRU-VNTR 24 loci, spoligotyping and MIRU-VNTR combined with spoligotyping for 104 isolates were 18.27%, 71.15% and 14.4%, respectively, whereas with the 431 LAM strains the values were 43.2 %, 95.8% and 37.4%. MIRU-VNTR combinations of 15, 12inv and 4 loci were more discriminatory than 12t. Clustering rates for MIRU-VNTR 15 and 12inv loci coupled with spoligotyping in the 104 isolated was 21% and 23%, while for LAM strains was 52% and 46% respectively. The number of different genetics patterns for 15 and 12inv loci were similar. In conclusion, we propose the use of a small number of informative loci MIRU-VNTR coupled to spoligotyping to investigate the transmission of tuberculosis in Venezuela.

  14. Parasites as biological tags of fish stocks: a meta-analysis of their discriminatory power.

    Science.gov (United States)

    Poulin, Robert; Kamiya, Tsukushi

    2015-01-01

    The use of parasites as biological tags to discriminate among marine fish stocks has become a widely accepted method in fisheries management. Here, we first link this approach to its unstated ecological foundation, the decay in the similarity of the species composition of assemblages as a function of increasing distance between them, a phenomenon almost universal in nature. We explain how distance decay of similarity can influence the use of parasites as biological tags. Then, we perform a meta-analysis of 61 uses of parasites as tags of marine fish populations in multivariate discriminant analyses, obtained from 29 articles. Our main finding is that across all studies, the observed overall probability of correct classification of fish based on parasite data was about 71%. This corresponds to a two-fold improvement over the rate of correct classification expected by chance alone, and the average effect size (Zr = 0·463) computed from the original values was also indicative of a medium-to-large effect. However, none of the moderator variables included in the meta-analysis had a significant effect on the proportion of correct classification; these moderators included the total number of fish sampled, the number of parasite species used in the discriminant analysis, the number of localities from which fish were sampled, the minimum and maximum distance between any pair of sampling localities, etc. Therefore, there are no clear-cut situations in which the use of parasites as tags is more useful than others. Finally, we provide recommendations for the future usage of parasites as tags for stock discrimination, to ensure that future applications of the method achieve statistical rigour and a high discriminatory power.

  15. Cluster analysis for identifying sub-groups and selecting potential discriminatory variables in human encephalitis

    Directory of Open Access Journals (Sweden)

    Crowcroft Natasha S

    2010-12-01

    Full Text Available Abstract Background Encephalitis is an acute clinical syndrome of the central nervous system (CNS, often associated with fatal outcome or permanent damage, including cognitive and behavioural impairment, affective disorders and epileptic seizures. Infection of the central nervous system is considered to be a major cause of encephalitis and more than 100 different pathogens have been recognized as causative agents. However, a large proportion of cases have unknown disease etiology. Methods We perform hierarchical cluster analysis on a multicenter England encephalitis data set with the aim of identifying sub-groups in human encephalitis. We use the simple matching similarity measure which is appropriate for binary data sets and performed variable selection using cluster heatmaps. We also use heatmaps to visually assess underlying patterns in the data, identify the main clinical and laboratory features and identify potential risk factors associated with encephalitis. Results Our results identified fever, personality and behavioural change, headache and lethargy as the main characteristics of encephalitis. Diagnostic variables such as brain scan and measurements from cerebrospinal fluids are also identified as main indicators of encephalitis. Our analysis revealed six major clusters in the England encephalitis data set. However, marked within-cluster heterogeneity is observed in some of the big clusters indicating possible sub-groups. Overall, the results show that patients are clustered according to symptom and diagnostic variables rather than causal agents. Exposure variables such as recent infection, sick person contact and animal contact have been identified as potential risk factors. Conclusions It is in general assumed and is a common practice to group encephalitis cases according to disease etiology. However, our results indicate that patients are clustered with respect to mainly symptom and diagnostic variables rather than causal agents

  16. Evaluation of the discriminatory power of variable number of tandem repeat typing of Mycobacterium bovis isolates from southern Africa.

    Science.gov (United States)

    Hlokwe, T M; van Helden, P; Michel, A

    2013-11-01

    The usefulness of variable number tandem repeat (VNTR) typing based on limited numbers of loci has previously proven inferior compared to IS6110-RFLP typing when applied to the study of the molecular epidemiology of bovine tuberculosis (BTB) in both livestock and wildlife in southern Africa. In this study, the discriminatory power of 29 published VNTR loci in the characterization of 131 Mycobacterium bovis strains isolated predominantly from wildlife and a smaller number from livestock in southern Africa was assessed. Allelic diversities calculated when loci were evaluated on a selected panel of 23 M. bovis isolates with identified varying degrees of genetic relatedness from different geographic origins as well as M. bovis BCG ranged from 0.00 to 0.63. Of the 29 loci tested, 13 were polymorphic (QUB 11a, QUB 11b, QUB 18, ETR-B and -C, Mtub 21, MIRU 16 and 26, ETR-E, QUB 26, MIRU 23, ETR-A, and Mtub 12). In addition, a comparative evaluation of the 13 loci on a panel of 65 isolates previously characterized by IS6110 restriction fragment length polymorphism (RFLP) typing and further evaluation on 41 isolates with no typing history from Kruger National Park (KNP) highlighted that M. bovis from epidemiologically unrelated cases of BTB in different geographic regions can be adequately distinguished. However, there is a need for improvement of the method to fully discriminate between the parental KNP strain and its clones to allow the detection of evolutionary events causing transmission between and within wildlife species.

  17. Discriminatory public procurement policies

    NARCIS (Netherlands)

    Ssennoga, Francis

    2010-01-01

    To achieve social economic objectives, governments usually institute discriminatory practices in their country’s public procurement framework. Discriminatory procurement is the practice by governments to favour their own domestic suppliers over foreign firms for advertised contracts. Favouring domes

  18. A comparison of the discriminatory power of the Inflammatory Bowel Disease Questionnaire and the SF-36 in people with ulcerative colitis.

    Science.gov (United States)

    McColl, E; Han, S W; Barton, J R; Welfare, M R

    2004-05-01

    The aim of this study was to compare the discriminatory power of a generic and a condition-specific quality of life measure (the Medical Outcomes Study Short-Form 36 (SF-36) and the Inflammatory Bowel Disease Questionnaire (IBDQ)) with respect to sub-groups defined by disease-related and other factors, in a sample of patients with ulcerative colitis. Disease activity was generally more highly correlated with IBDQ scores than with SF-36 scores. The only significant differences with respect to disease extent were in the SF-36 energy/vitality and social function domains. Age was negatively and weakly to moderately correlated with the physical domains of the SF-36 but positively though weakly correlated with scores on the IBDQ emotional domain and those domains of the SF-36 related to mental well-being. Co-existing chronic illness, even on controlling for age, was associated with significantly poorer scores on the generic measure, but had little influence on IBDQ scores. In conclusion, generic and disease-specific measures of quality of life appear to be complementary rather than interchangeable. We recommend the use of both types of measure in parallel.

  19. Discriminatory power of MRI for differentiation of adrenal non-adenomas vs adenomas evaluated by means of ROC analysis: Can biopsy be obviated?

    Energy Technology Data Exchange (ETDEWEB)

    Slapa, R.Z.; Jakubowski, W.; Krolicki, L. [Department of Imaging, Warsaw Medical School (Poland); Januszewicz, A. [Department of Hypertension, National Institute of Cardiology, Warsaw (Poland); Kasperlik-Zaluska, A.A. [Department of Endocrinology, Center for Postgraduate Medical Education, Warsaw (Poland); Dabrowska, E.; Feltynowski, T. [Department of Hypertension, Warsaw Medical School, Warsaw (Poland); Fijuth, J. [Department of Teleradiotherapy, Institute of Oncology, Warsaw (Poland); Tarnawski, R. [Department of Radiotherapy, Institute of Oncology, Gliwice Branch, Gliwice (Poland)

    2000-01-01

    The purpose of our study was to evaluate the discriminatory power of MRI in high-field magnet (1.5 T) for differentiation of adrenal non-adenomas vs adenomas assessing the following parameters separately and in combination: mean diameter of adrenal mass; previously described and new ratios as well as index calculated from signal intensity (SI) on SE T2-weighted images, chemical shift imaging (CSI), and Gd-DTPA-enhanced dynamic studies. One hundred eight adrenal masses (36 non-hyperfunctioning adenomas, 27 pheochromocytomas, 23 aldosterone-secreting adenomas, 20 malignant masses and 2 cortisol-secreting adenomas) in 95 patients were evaluated with SE sequences, CSI and Gd-DTPA dynamic studies. Indices and ratios of SI for all examined MRI methods were calculated and examined retrospectively for significance of differences between the groups with calculation of sensitivity and specificity. Receiver operating characteristics (ROC) analysis of calculated parameters in combination was performed. The multifactorial analysis of all four parameters, including size of the tumor, T2{sub liver} index, CSI ratio reflecting lipid content in the tumor and Wo{sub max/last} ratio reflecting maximal washout of contrast agent from the tumor had 100 % sensitivity and 100 % specificity in characterization of adrenal non-adenoma. The best performance of combination of mean tumor diameter with single MRI SI parameter was achieved in combination with T2{sub liver} index for all adrenal masses (area under ROC 0.987) and CSI ratio for non-hyperfunctioning adrenal masses (area under ROC 0.991). Magnetic resonance imaging enables sensitive and specific diagnosis of adrenal non-adenoma. (orig.)

  20. Two-gene signature improves the discriminatory power of IASLC/ATS/ERS classification to predict the survival of patients with early-stage lung adenocarcinoma

    Directory of Open Access Journals (Sweden)

    Sun Y

    2016-07-01

    value of TNM staging in survival prediction, but not the value of the IASLC/ATS/ERS classification. Further analysis suggested that only BRCA1 and ERBB3 in the signature were independent risk factors after adjusting for the IASLC/ATS/ERS classification by Cox regression. A new algorithm of the two-gene expression signature containing BRCA1 and ERBB3 was generated. Adding the two-gene signature into the IASLC/ATS/ERS classification model further improved the discriminatory c-statistic from 0.728 to 0.756. Conclusion: The two-gene signature composed of BRCA1 and ERBB3 was an independent risk factor of the IASLC/ATS/ERS classification, which can be used to improve the discriminatory power of prognosis prediction of the IASLC/ATS/ERS classification in early-stage lung adenocarcinoma. The two-gene signature combination with the IASLC/ATS/ERS classification might contribute to better patient stratification for adjuvant chemoradiotherapy or targeted therapy after the surgery. Keywords: molecular biomarker, prognosis, lung, adenocarcinoma

  1. Improving the discriminatory power of a near-infrared microscopy spectral library with a support vector machine classifier.

    Science.gov (United States)

    Fernández-Ibáñez, V; Fearn, T; Montañés, E; Quevedo, J R; Soldado, A; de la Roza-Delgado, B

    2010-01-01

    A multi-group classifier based on the support vector machine (SVM) has been developed for use with a library of 48,456 spectra measured by near-infrared reflection microscopy (NIRM) on 227 samples representing 26 animal feed ingredients and 4 possible contaminants of animal origin. The performance of the classifier was assessed by a five-fold cross-validation, dividing at the sample level. Although the overall proportion of misclassifications was 27%, almost all of these involved the confusion of pairs of similar ingredients of vegetable origin. Such confusions are unimportant in the context of the intended use of the library, which is the detection of banned ingredients in animal feed. The error rate in discrimination between permitted and banned ingredients was just 0.17%. The performance of the SVM classifier was substantially better than that of the K-nearest-neighbors method employed in previous work with the same library, for which the comparable error rates are 36% overall and 0.39% for permitted versus banned ingredients.

  2. Relations between high and low power groups: the importance of legitimacy.

    Science.gov (United States)

    Hornsey, Matthew J; Spears, Russell; Cremers, Iris; Hogg, Michael A

    2003-02-01

    Using a social identity perspective, two experiments examined the effects of power and the legitimacy of power differentials on intergroup bias. In Experiment 1, 125 math-science students were led to believe that they had high or low representation in a university decision-making body relative to social-science students and that this power position was either legitimate or illegitimate. Power did not have an independent effect on bias; rather, members of both high and low power groups showed more bias when the power hierarchy was illegitimate than when it was legitimate. This effect was replicated in Experiment 2 (N = 105). In addition, Experiment 2 showed that groups located within an unfair power hierarchy expected the superordinate power body to be more discriminatory than did those who had legitimately high or low power. The results are discussed in terms of their implications for group relations.

  3. Leadership behaviours that foster nursing group power.

    Science.gov (United States)

    Sieloff, Christina Leibold

    2004-07-01

    Today's health care environment presents many challenges to nursing groups as they seek to achieve their goals. All resources must be recognized and effectively utilized. Power, defined as the capacity to achieve goals (Sieloff 1995), is a valuable resource that can assist nursing groups in the achievement of their goals. The leader of a nursing group can make a significant difference in a group's ability to actualize their power capacity. The purpose of this article is to identify and discuss the use of a tool (Sieloff-King Assessment of Group Power within Organizations) to identify the nurse leader/group power variables that can be used to improve a nursing group's power as a resource in the achievement of its goals. Using behaviours related to a Nurse Leader's Power Competency and Power Perspective variables, identified in the Theory of Group Power within Organizations (Sieloff 1999), a nurse leader can foster a nursing group's power.

  4. Discriminatory power of game-related statistics in 14-15 year age group male volleyball, according to set.

    Science.gov (United States)

    García-Hermoso, Antonio; Dávila-Romero, Carlos; Saavedra, Jose M

    2013-02-01

    This study compared volleyball game-related statistics by outcome (winners and losers of sets) and set number (total, initial, and last) to identify characteristics that discriminated game performance. Game-related statistics from 314 sets (44 matches) played by teams of male 14- to 15-year-olds in a regional volleyball championship were analysed (2011). Differences between contexts (winning or losing teams) and "set number" (total, initial, and last) were assessed. A discriminant analysis was then performed according to outcome (winners and losers of sets) and "set number" (total, initial, and last). The results showed differences (winning or losing sets) in several variables of Complexes I (attack point and error reception) and II (serve and aces). Game-related statistics which discriminate performance in the sets index the serve, positive reception, and attack point. The predictors of performance at these ages when players are still learning could help coaches plan their training.

  5. Emergent Power Hierarchies and Group Performance.

    Science.gov (United States)

    Frauendorfer, Denise; Schmid Mast, Marianne; Sanchez-Cortes, Dairazalia; Gatica-Perez, Daniel

    2015-10-01

    In newly formed groups, informal hierarchies emerge automatically and readily. In this study, we argue that emergent group hierarchies enhance group performance (Hypothesis 1) and we assume that the more the power hierarchy within a group corresponds to the task-competence differences of the individual group members, the better the group performs (Hypothesis 2). Twelve three-person groups and 28 four-person groups were investigated while solving the Winter Survival Task. Results show that emerging power hierarchies positively impact group performance but the alignment between task-competence and power hierarchy did not affect group performance. Thus, emergent power hierarchies are beneficial for group performance and although they were on average created around individual group members' competence, this correspondence was not a prerequisite for better group performance.

  6. Electrical Power Working Group report

    Science.gov (United States)

    Vanommering, Gerrit; Myers, Ira T.

    1986-01-01

    The status of and need for power technologies for Spacecraft 2000 were assessed and development programs required to establish an achievable and competitive technology base for spacecraft of the 21st century were identified. The results are summarized, including the recommendations and the underlying rationale.

  7. Management Innovations in Power Generation Groups

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ Since the institutional reform of power industry in 2002,power sectors,in particularelectrity generation enterprises in China have been grently changed, not only in institutionand industrial pattern but also in operational environment.The year2006is a turning point of tense power supply lasting for three years and a half .The change of power supply situationin the 11th Five-Year Plan period and in-depth reform of power institutional systm haveplaced serious challenges in front of power genration groups.In this new historical era,powergeneration groups can keep undefeated only by carrying out actively mangement innovations.

  8. Interagency Advanced Power Group -- Steering group meeting minutes

    Energy Technology Data Exchange (ETDEWEB)

    1993-11-18

    This document contains the draft meeting minutes of the Steering Group of the Interagency Advanced Power Group. Included are the discussions resulting from the presentation of working group reports and the results of a discussion of IAPG policies and procedures. In the appendix are the reports of the following working groups: Electrical, Mechanical, Solar, and Systems.

  9. 18 CFR 35.28 - Non-discriminatory open access transmission tariff.

    Science.gov (United States)

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Non-discriminatory open... AND TARIFFS Other Filing Requirements § 35.28 Non-discriminatory open access transmission tariff. (a... available supply falls short ofdemand plus the operating reserve requirement. (7) Market Monitoring...

  10. The combination of CRISPR-MVLST and PFGE provides increased discriminatory power for differentiating human clinical isolates of Salmonella enterica subsp. enterica serovar Enteritidis.

    Science.gov (United States)

    Shariat, Nikki; DiMarzio, Michael J; Yin, Shuang; Dettinger, Lisa; Sandt, Carol H; Lute, James R; Barrangou, Rodolphe; Dudley, Edward G

    2013-05-01

    Salmonella enterica subsp. enterica serovar Enteritidis (S. Enteritidis) is a major cause of foodborne salmonellosis. Rapid, efficient and accurate methods for identification are required to track specific strains of S. Enteritidis during outbreaks of human salmonellosis. By exploiting the hypervariable nature of virulence genes and Clustered Regularly Interspaced Short Palindromic Repeats (CRISPRs), we previously developed a powerful sequence-based subtyping approach, designated CRISPR-MVLST. To substantiate the applicability of CRISPR-MVLST, we analyzed a broad set of S. Enteritidis isolates collected over a six-year period. Among 141 isolates we defined 22 Enteritidis Sequence Types (ESTs), the majority of which were novel. Notably, strains exhibiting the common PFGE pattern, JEGX01.0004 (characteristic of ∼40% of S. Enteritidis isolates in the United States), were separated into twelve distinct sequence types. Conversely, isolates of EST4, the most predominant EST we observed, comprised eight different PFGE patterns. Importantly, we showed that some genotypes that were previously associated with the food supply chain at the farm level have now been identified in clinical samples. CRISPR sequence data shows subtle but distinct differences among different alleles of S. Enteritidis, suggesting that evolution of these loci occurs vertically, as opposed to previously reported evolution by spacer acquisition in other bacteria.

  11. The Road to Negative Behavior: Discriminatory Intentions in the German Population

    Directory of Open Access Journals (Sweden)

    Ulrich Wagner

    2007-01-01

    Full Text Available This study analyzes discriminatory intentions shared by members of the German majority against several outgroups in Germany. Patterns of discriminatory intentions against various minority groups were investigated for several indicators, including gender, age, and political orientation, by means of a representative survey (N = 1,778. The relationship between prejudices and discriminatory intentions against different target groups was also analyzed. Prejudice and discriminatory intentions show moderate but consistently positive correlations in relation to one and the same target group. Moreover, it was found that discriminatory intentions against one outgroup are related to hostile attitudes towards other outgroups, too. The results support the hypothesis of a syndrome of group-focused enmity.

  12. "Hate Speech" and Discriminatory Practices towards Other People

    Science.gov (United States)

    Alperovich, Valeriya

    2016-01-01

    The images of "enemies" and "friends" remain in the focus of attention due to escalating discriminatory practices towards communication partners from different groups that one tends to ascribe negative features based on various stereotypes, social attitudes and representations. In this paper, the problem of metaphorical and…

  13. Finite Groups with Its Power Automorphism Groups Having Small Indices

    Institute of Scientific and Technical Information of China (English)

    Jun Xin WANG; Xiu Yun GUO

    2009-01-01

    In this paper,a finite group G with|Aut(G) : P(G)| = p or pq is determined,where P(G)is the power automorphism group of G,and p,q are distinct primes.Especially,we prove that a finite group G satisfies |Aut(G) : P(G)| = pq if and only if Aut(G)/P(G) (≈)S3.Also,some other classes of finite groups are investigated and classified,which are necessary for the proof of our main results.

  14. How groups contest depends on group power and the likelihood that power determines victory and defeat

    NARCIS (Netherlands)

    Kamans, Elanor; Otten, Sabine; Gordijn, Ernestine H.; Spears, Russell

    2010-01-01

    The aim of the current study was to show that the type of conflict behavior (constructive vs. unconstructive) groups use in conflicts depends on their power position as well as the likelihood that power determines victory and defeat. In an alleged online debate, we created a conflict between two opi

  15. Interagency Advanced Power Group meeting minutes

    Energy Technology Data Exchange (ETDEWEB)

    1991-01-01

    This document contains the minutes and viewgraphs from a meeting of military personnel on the subject of power generation and distribution systems for military applications. Topics include heating and cooling systems for standard shelters, SDIO power programs, solar dynamic space power systems, hybrid solar dynamic/ photovoltaic systems, pulsed power technology, high-{Tc} superconductors, and actuators and other electronic equipment for aerospace vehicles. Attendees represented the US Air Force, Army, Navy, and NASA. (GHH)

  16. Interagency Advanced Power Group meeting minutes

    Energy Technology Data Exchange (ETDEWEB)

    1991-12-31

    This document contains the minutes and viewgraphs from a meeting of military personnel on the subject of power generation and distribution systems for military applications. Topics include heating and cooling systems for standard shelters, SDIO power programs, solar dynamic space power systems, hybrid solar dynamic/ photovoltaic systems, pulsed power technology, high-{Tc} superconductors, and actuators and other electronic equipment for aerospace vehicles. Attendees represented the US Air Force, Army, Navy, and NASA. (GHH)

  17. Embeddings of (proper) power graphs of finite groups

    OpenAIRE

    Doostabadi, Alireza; Ghouchan, Mohammad Farrokhi Derakhshandeh

    2014-01-01

    The (proper) power graph of a group is a graph whose vertex set is the set of all (nontrivial) elements of the group and two distinct vertices are adjacent if one is a power of the other. Various kinds of planarity of (proper) power graphs of groups are discussed.

  18. 75 FR 10318 - Briggs & Stratton Power Products Group, LLC., Home Power Division, a Subsidiary of Briggs...

    Science.gov (United States)

    2010-03-05

    ...-72,718B] Briggs & Stratton Power Products Group, LLC., Home Power Division, a Subsidiary of Briggs... Group, and Aerotek, Jefferson, WI; Briggs & Stratton Power Products Group, LLC., Home Power Division... Lifestyle Staffing, Adecco, Techstaff, The Alaris Group, and Aerotek, Jefferson, WI; Briggs & Stratton...

  19. Groups of Prime Power Order v. 3

    CERN Document Server

    Berkovich, Yakov

    2011-01-01

    This is the third volume of a comprehensive and elementary treatment of finite p-group theory. Topics covered in this volume: (a) impact of minimal nonabelian subgroups on the structure of p-groups, (b) classification of groups all of whose nonnormal subgroups have the same order, (c) degrees of irreducible characters of p-groups associated with finite algebras, (d) groups covered by few proper subgroups, (e) p-groups of element breadth 2 and subgroup breadth 1, (f) exact number of subgroups of given order in a metacyclic p-group, (g) soft subgroups, (h) p-groups with a maximal elementary abel

  20. Effects of power on perceived and objective group variability: evidence that more powerful groups are more variable.

    Science.gov (United States)

    Guinote, Ana; Judd, Charles M; Brauer, Markus

    2002-05-01

    The perception of group variability is affected by social power and status. Three different mechanisms may be responsible for these effects: (a) the power of the perceiver affects perceived group variability; (b) the power of the perceived group affects its perceived variability; and (c) the power of the group affects its actual variability. Two studies are reported to tease apart these three mechanisms and provide support for the third. In the first study, high- and low-power groups interacted and subsequently judged each other. In the second study, participants observed and rated the Study 1 groups, either knowing their power relationship or not. Results suggest that members of high-power groups manifest greater interpersonal variability than members of low-power groups.

  1. Discovery of regulatory elements is improved by a discriminatory approach

    DEFF Research Database (Denmark)

    Valen, Eivind; Sandelin, Albin; Winther, Ole;

    2009-01-01

    A major goal in post-genome biology is the complete mapping of the gene regulatory networks for every organism. Identification of regulatory elements is a prerequisite for realizing this ambitious goal. A common problem is finding regulatory patterns in promoters of a group of co-expressed genes...... present a new computational method for identifying transcription factor binding sites in promoters using a discriminatory approach with a large negative set encompassing a significant sample of the promoters from the relevant genome. The sequences are described by a probabilistic model and the most...

  2. Discriminatory Indices of Typing Methods for Epidemiologic Analysis of Contemporary Staphylococcus aureus Strains.

    Science.gov (United States)

    Rodriguez, Marcela; Hogan, Patrick G; Satola, Sarah W; Crispell, Emily; Wylie, Todd; Gao, Hongyu; Sodergren, Erica; Weinstock, George M; Burnham, Carey-Ann D; Fritz, Stephanie A

    2015-09-01

    Historically, a number of typing methods have been evaluated for Staphylococcus aureus strain characterization. The emergence of contemporary strains of community-associated S. aureus, and the ensuing epidemic with a predominant strain type (USA300), necessitates re-evaluation of the discriminatory power of these typing methods for discerning molecular epidemiology and transmission dynamics, essential to investigations of hospital and community outbreaks. We compared the discriminatory index of 5 typing methods for contemporary S. aureus strain characterization. Children presenting to St. Louis Children's Hospital and community pediatric practices in St. Louis, Missouri (MO), with community-associated S. aureus infections were enrolled. Repetitive sequence-based PCR (repPCR), pulsed-field gel electrophoresis (PFGE), multilocus sequence typing (MLST), staphylococcal protein A (spa), and staphylococcal cassette chromosome (SCC) mec typing were performed on 200 S. aureus isolates. The discriminatory index of each method was calculated using the standard formula for this metric, where a value of 1 is highly discriminatory and a value of 0 is not discriminatory. Overall, we identified 26 distinct strain types by repPCR, 17 strain types by PFGE, 30 strain types by MLST, 68 strain types by spa typing, and 5 strain types by SCCmec typing. RepPCR had the highest discriminatory index (D) of all methods (D = 0.88), followed by spa typing (D = 0.87), MLST (D = 0.84), PFGE (D = 0.76), and SCCmec typing (D = 0.60). The method with the highest D among MRSA isolates was repPCR (D = 0.64) followed by spa typing (D = 0.45) and MLST (D = 0.44). The method with the highest D among MSSA isolates was spa typing (D = 0.98), followed by MLST (D = 0.93), repPCR (D = 0.92), and PFGE (D = 0.89). Among isolates designated USA300 by PFGE, repPCR was most discriminatory, with 10 distinct strain types identified (D = 0.63). We identified 45

  3. Trade Facilitation Provisions in Regional Trade Agreements: Discriminatory or Non-discriminatory?

    Directory of Open Access Journals (Sweden)

    Innwon Park

    2016-12-01

    Full Text Available The RTAs with trade facilitation provisions have been expected to generate a larger net trade-creating effect and complement the discriminatory feature of RTAs but have yet to be empirically proven. Recognizing the limitations of existing studies, we conducted a quantitative analysis on the effects of RTAs with and without trade facilitation provisions on both intra- and extra-bloc trade by using a modified gravity equation. We applied the Poisson Pseudo-Maximum Likelihood (PPML estimation with time varying exporter and importer fixed effect method to panel data consisting of 45,770 country pairs covering 170 countries for 2000-2010. We found that the trade facilitation provisions in existing RTAs are non-discriminatory by generating more intra- and extra-bloc trade in general. In particular, we found that the trade effects of RTAs in the APEC region are much stronger than the general case covering all RTAs in the world. In addition, as we control the trade effect of a country's trade facilitation, which is ranked by the World Bank's logistic performance index, RTAs consisting of trade facilitation provisions are discriminatory for trade in final goods and non-discriminatory for trade in intermediate goods. Overall, we endeavor to "explain," instead of "hypothesizing," why most of the recent RTAs contain trade facilitation provisions, especially in light of the deepening regional interdependence through trade in parts and components under global value chains and support the necessity of multilateralizing RTAs by implementing non-discriminatory trade facilitation provisions.

  4. Groups of Prime Power Order v 1

    CERN Document Server

    Berkovich, Yakov

    2008-01-01

    This is the first of three volumes on finite p-group theory. It presents the state of the art and in addition contains numerous new and easy proofs of famous theorems, many exercises (some of them with solutions), and about 1500 open problems. It is expected to be useful to certain applied mathematics areas, such as combinatorics, coding theory, and computer sciences. The book should also be easily comprehensible to students and scientists with some basic knowledge of group theory and algebra.

  5. Believing the Power of the Group

    Institute of Scientific and Technical Information of China (English)

    Tom Xue; Flora Zhao

    2011-01-01

    The New York Co-Location Exhibitions (TEXWORLD USA/International Apparel Sourcing Expo/Home Textile Sourcing Expo) are to stage on the same spot as last year from July 19th - 21st,2011,strongly attracting the textile enterprises to itch to go for more business opportunity as well as the new market.Wenzhou,wellknown for its fashion industry,has grasped the chance to organize its member enterprises as a group pavilion to go to New York for much more success.The reporters of the magazine interviewed the Secretary of Wenzhou Fashion Association,Chen Qixiang,for some information of the group.

  6. A Note on Primitive Permutation Groups of Prime Power Degree

    OpenAIRE

    Qian Cai; Hua Zhang

    2015-01-01

    Primitive permutation groups of prime power degree are known to be affine type, almost simple type, and product action type. At the present stage finding an explicit classification of primitive groups of affine type seems untractable, while the product action type can usually be reduced to almost simple type. In this paper, we present a short survey of the development of primitive groups of prime power degree, together with a brief description on such groups.

  7. Intrinsic thermoelectric power of group VB metals

    Directory of Open Access Journals (Sweden)

    Gunadhor Singh Okram

    2012-03-01

    Full Text Available We have reinvestigated the thermopower of group VB metals in polycrystalline forms in the temperature range of 6-300K, taking into account the critical nature of the sample surface and heat treatment especially for niobium. Strikingly small magnitude, negative sign, phonon drag dip and superconductivity not reported previously were observed in surface-cleaned single crystalline Nb. However, while thermopower magnitudes are small, mixed signs were found in the polycrystalline V, Nb and Ta samples. These properties were therefore interpreted as their intrinsic properties and were briefly discussed taking into account of the existing theory by fitting also the data that give the Fermi energies of 10.94 eV, 5.08 eV and 1.86eV, respectively.

  8. Power in group contexts: the influence of group status on promotion and prevention decision making.

    Science.gov (United States)

    Scheepers, Daan; Ellemers, Naomi; Sassenberg, Kai

    2013-06-01

    This research examines how group status affects the impact of individual power positions on promotion versus prevention choices in group decision making. We consider that high power not only implies control, but also indicates responsibility for the achievement of group goals. We argue that the nature of these goals depends on the current status of the group. In Experiment 1, individuals who were accorded high power showed more promotion-oriented decisions in the low group status condition while decisions were more prevention oriented under high group status. Experiment 2 replicated these effects, and further demonstrated that they only emerge when those in power are explicitly made accountable for the achievement of group goals. These results are discussed in relation to regulatory focus theory, power theories, and the role of social identities and group goals in group dynamics.

  9. Why some groups just feel better: the regulatory fit of group power.

    Science.gov (United States)

    Sassenberg, Kai; Jonas, Kai J; Shah, James Y; Brazy, Paige C

    2007-02-01

    The current research applied the regulatory fit hypothesis (E. T. Higgins, 2000) to the evaluation of groups, suggesting that individuals' group appraisal depends on how well the groups fit their regulatory needs. Specifically, it was predicted that higher power groups would fit and be more valued by those individuals with a promotion focus because these groups provide a better opportunity to sustain nurturance and achievement needs. Alternatively, lower power groups were predicted to fit and be more valued by those individuals with a prevention focus because these groups necessitate (and thus sustain) a focus on safety and security. Five studies found support for these predictions by both assessing and manipulating regulatory focus and group power and by using explicit and implicit measures of group attraction. Moreover, these regulatory fit effects occurred specifically for group power and not for general differences in group status.

  10. When does power disparity help or hurt group performance?

    Science.gov (United States)

    Tarakci, Murat; Greer, Lindred L; Groenen, Patrick J F

    2016-03-01

    Power differences are ubiquitous in social settings. However, the question of whether groups with higher or lower power disparity achieve better performance has thus far received conflicting answers. To address this issue, we identify 3 underlying assumptions in the literature that may have led to these divergent findings, including a myopic focus on static hierarchies, an assumption that those at the top of hierarchies are competent at group tasks, and an assumption that equality is not possible. We employ a multimethod set of studies to examine these assumptions and to understand when power disparity will help or harm group performance. First, our agent-based simulation analyses show that by unpacking these common implicit assumptions in power research, we can explain earlier disparate findings--power disparity benefits group performance when it is dynamically aligned with the power holder's task competence, and harms group performance when held constant and/or is not aligned with task competence. Second, our empirical findings in both a field study of fraud investigation groups and a multiround laboratory study corroborate the simulation results. We thereby contribute to research on power by highlighting a dynamic understanding of power in groups and explaining how current implicit assumptions may lead to opposing findings.

  11. Market power and contract form: evidence from physician group practices.

    Science.gov (United States)

    Town, Robert; Feldman, Roger; Kralewski, John

    2011-06-01

    We examine how the market power of physician groups affects the form of their contracts with health insurers. We develop a simple model of physician contracting based on 'behavioral economics' and test it with data from two sources: a survey of physician group practices in Minnesota; and the physician component of the Community Tracking Survey. In both data sets we find that increases in groups' market power are associated with proportionately more fee-for-service revenue and less revenue from capitation.

  12. 24 CFR 100.75 - Discriminatory advertisements, statements and notices.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 1 2010-04-01 2010-04-01 false Discriminatory advertisements... Practices § 100.75 Discriminatory advertisements, statements and notices. (a) It shall be unlawful to make, print or publish, or cause to be made, printed or published, any notice, statement or advertisement...

  13. 24 CFR 107.21 - Prevention of discriminatory practices.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 1 2010-04-01 2010-04-01 false Prevention of discriminatory practices. 107.21 Section 107.21 Housing and Urban Development Regulations Relating to Housing and Urban... Prevention of discriminatory practices. All persons receiving assistance from, or participating in...

  14. CHINALCO Repurchased Equity of Ningxia Electric Power Group

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

    <正>On the transformation road to promoting coal-power-aluminum integration, CHINALCO moved another step forward. Following the acquisition of 35.3% equity of Ningxia Electric Power Group in August, CHINALCO again announced to buy 23.66% equity of Ningxia

  15. Improved protein structure selection using decoy-dependent discriminatory functions

    Directory of Open Access Journals (Sweden)

    Levitt Michael

    2004-06-01

    Full Text Available Abstract Background A key component in protein structure prediction is a scoring or discriminatory function that can distinguish near-native conformations from misfolded ones. Various types of scoring functions have been developed to accomplish this goal, but their performance is not adequate to solve the structure selection problem. In addition, there is poor correlation between the scores and the accuracy of the generated conformations. Results We present a simple and nonparametric formula to estimate the accuracy of predicted conformations (or decoys. This scoring function, called the density score function, evaluates decoy conformations by performing an all-against-all Cα RMSD (Root Mean Square Deviation calculation in a given decoy set. We tested the density score function on 83 decoy sets grouped by their generation methods (4state_reduced, fisa, fisa_casp3, lmds, lattice_ssfit, semfold and Rosetta. The density scores have correlations as high as 0.9 with the Cα RMSDs of the decoy conformations, measured relative to the experimental conformation for each decoy. We previously developed a residue-specific all-atom probability discriminatory function (RAPDF, which compiles statistics from a database of experimentally determined conformations, to aid in structure selection. Here, we present a decoy-dependent discriminatory function called self-RAPDF, where we compiled the atom-atom contact probabilities from all the conformations in a decoy set instead of using an ensemble of native conformations, with a weighting scheme based on the density scores. The self-RAPDF has a higher correlation with Cα RMSD than RAPDF for 76/83 decoy sets, and selects better near-native conformations for 62/83 decoy sets. Self-RAPDF may be useful not only for selecting near-native conformations from decoy sets, but also for fold simulations and protein structure refinement. Conclusions Both the density score and the self-RAPDF functions are decoy

  16. Why some groups just feel better : The regulatory fit of group power

    NARCIS (Netherlands)

    Sassenberg, K.; Jonas, K.J; Shah, J.Y; Brazy, P.C

    2007-01-01

    The current research applied the regulatory fit hypothesis (E. T. Higgins, 2000) to the evaluation of groups, suggesting that individuals' group appraisal depends on how well the groups fit their regulatory needs. Specifically, it was predicted that higher power groups would fit and be more valued b

  17. Coordination of baseload power plant group control with static reactive power compensator control

    Directory of Open Access Journals (Sweden)

    Zbigniew Szczerba

    2012-06-01

    Full Text Available Reactive power sources in power system nodes: generators and static reactive power compensators, are controlled by control systems. Generators – by generator node group controllers, compensators – by voltage controllers. The paper presents issues of these control systems’ coordination and proposals for its implementation.

  18. Endomorphism Algebras of Tensor Powers of Modules for Quantum Groups

    DEFF Research Database (Denmark)

    Andersen, Therese Søby

    the group algebra of the braid group to the endomorphism algebra of any tensor power of the Weyl module with highest weight 2. We take a first step towards determining the kernel of this map by reformulating well-known results on the semisimplicity of the Birman-Murakami-Wenzl algebra in terms of the order...

  19. The Power of Language in Computer-Mediated Groups.

    Science.gov (United States)

    Adkins, Mark; Brashers, Dale E.

    1995-01-01

    Discusses an experiment to find the effects of "powerful" and "powerless" language on small computer-mediated groups. Explains that subjects were asked to communicate via computer in a decision-making context. Describes the three conditions. Finds that language style has significant impact on impression formation in computer groups and that…

  20. Group handoff management in low power microcell-femtocell network

    Directory of Open Access Journals (Sweden)

    Debashis De

    2017-02-01

    Full Text Available This paper presents an analytical model of group based hand-off management based on bird flocking behavior. In the proposed scheme, a number of mobile devices form a group if these devices move together for a long time duration. Although call delivery or call generation are performed individually, hand-off is performed in a group. Dynamic group formation, group division and group merging methods are proposed in this paper. From the simulation results it is demonstrated that approximately 75%, 65% and 90% reduction in power, cost and latency consumption can be obtained respectively using group hand-off management. Thus the proposed scheme is referred as green, economic and fast hand-off strategy. In this paper instead of a macrocell network, a microcell-femtocell network is considered as the transmission power of a microcell or a femtocell base station is much less than a macrocell base station. Simulation results present that the microcell-femtocell network achieves approximately 25–55% and 35–55% reduction in power transmission, and 50–65% and 15–45% reduction in path loss than only a macrocell network and macrocell-femtocell network respectively. Thus microcell-femtocell network is a power-efficient network.

  1. Shenhuo Group,Yichuan Power and Yulian Group Jointly Establishing Henan Non-ferrous Holding Co.

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    <正>Recently,Shenghuo Group,Yulian Group and Yichuan Power have made the decision to es- tablish Henan Non-ferrous Holding Group with a joint investment of 500 million yuan.It is originally scheduled to complete industrial and commercial registration by the end of June with registration in Zhendong New Area of Zhen- zhou.

  2. Automated margin analysis of contemporary adhesive systems in vitro: evaluation of discriminatory variables.

    Science.gov (United States)

    Heintze, Siegward D; Forjanic, Monika; Roulet, François-Jean

    2007-08-01

    Using an optical sensor, to automatically evaluate the marginal seal of restorations placed with 21 adhesive systems of all four adhesive categories in cylindrical cavities of bovine dentin applying different outcome variables, and to evaluate their discriminatory power. Twenty-one adhesive systems were evaluated: three 3-step etch-and-rinse systems, three 2-step etch-and-rinse systems, five 2-step self-etching systems, and ten 1-step self-etching systems. All adhesives were applied in cylindrical cavities in bovine dentin together with Tetric Ceram (n=8). In the control group, no adhesive system was used. After 24 h of storage in water at 37 degrees C, the surface was polished with 4000-grit SiC paper, and epoxy resin replicas were produced. An optical sensor (FRT MicroProf) created 100 profiles of the restoration margin, and an algorithm detected gaps and calculated their depths and widths. The following evaluation criteria were used: percentage of specimens without gaps, the percentage of gap-free profiles in relation to all profiles per specimen, mean gap width, mean gap depth, largest gap, modified marginal integrity index MI. The statistical analysis was carried out on log-transformed data for all variables with ANOVA and post-hoc Tukey's test for multiple comparisons. The correlation between the variables was tested with regression analysis, and the pooled data accordingto the four adhesive categories were compared by applying the Mann-Whitney nonparametric test (p adhesive systems demonstrated the best marginal adaptation, followed by the 2-step self-etching and the 1-step self-etching adhesives; the latter showed the highest variability in test results between materials and within the same material. The only exception to this rule was Xeno IV, which showed a marginal adaptation that was comparable to that of the best 3-step etch-and-rinse systems. Except for the variables "largest gap" and "mean gap depth", all the other variables had a similar ability to

  3. Estimating Statistical Power for Open Enrollment Group Treatment Trials

    Science.gov (United States)

    Morgan-Lopez, Antonio A.; Saavedra, Lissette M.; Hien, Denise A.; Fals-Stewart, William

    2010-01-01

    Modeling turnover in group membership has been identified as a key barrier contributing to a disconnect between the manner in which behavioral treatment is conducted (open enrollment groups) and the designs of substance abuse treatment trials (closed enrollment groups, individual therapy). Latent class pattern mixture models (LCPMM) are an emerging tool for modeling data from open enrollment groups with membership turnover in recently proposed treatment trials. The current article illustrates an approach to conducting power analyses for open enrollment designs based on Monte Carlo simulation of LCPMM models using parameters derived from published data from an RCT comparing Seeking Safety to a Community Care condition for women presenting with comorbid PTSD and substance use disorders. The example addresses discrepancies between the analysis framework assumed in power analyses of many recently-proposed open enrollment trials and the proposed use of LCPMM for data analysis. PMID:20832971

  4. Predictive power of renormalisation group flows a comparison

    CERN Document Server

    Litim, Daniel F; Litim, Daniel F.; Pawlowski, Jan M.

    2001-01-01

    We study a proper-time renormalisation group, which is based on an operator cut-off regularisation of the one-loop effective action. The predictive power of this approach is constrained because the flow is not an exact one. We compare it to the Exact Renormalisation Group, which is based on a momentum regulator in the Wilsonian sense. In contrast to the former, the latter provides an exact flow. To leading order in a derivative expansion, an explicit map from the exact to the proper-time renormalisation group is established. The opposite map does not exist in general. We discuss various implications of these findings, in particular in view of the predictive power of the proper-time renormalisation group. As an application, we compute critical exponents for O(N)-symmetric scalar theories at the Wilson-Fisher fixed point in 3d from both formalisms.

  5. The amenability of the substitution group of formal power series

    Energy Technology Data Exchange (ETDEWEB)

    Babenko, Ivan K; Bogatyi, Semen A

    2011-04-30

    We study the amenability property for the group J(k) of formal power series in one variable with coefficients in a commutative ring k with identity. We show that there exists an invariant mean on the space C{sub u}*(J(k)) of uniformly continuous bounded functions on this group. This is equivalent to the fact that every continuous action of J(k) on every compact space has an invariant probability measure.

  6. The Power of Opposition Parliamentary Party Groups in European Scrutiny

    NARCIS (Netherlands)

    Holzhacker, Ronald

    2005-01-01

    This paper investigates the power of opposition parliamentary party groups when scrutinising their governments' decision-making concerning European Union issues, an important component in assuring democracy within the emerging multi-level system of governance in the EU. It first sets out the advanta

  7. The Effects of Gender Variety and Power Disparity on Group Cognitive Complexity in Collaborative Learning Groups

    Science.gov (United States)

    Curseu, Petru Lucian; Sari, Kimzana

    2015-01-01

    This study sets up to test the extent to which gender variety moderates the impact of power disparity on group cognitive complexity (GCC) and satisfaction with the group in a collaborative learning setting. Using insights from gender differences in perceptions, orientations and conflict handling behavior in negotiation, as well as gender…

  8. Insufficient Discriminatory Power of Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry Dendrograms to Determine the Clonality of Multi-Drug-Resistant Acinetobacter baumannii Isolates from an Intensive Care Unit

    Directory of Open Access Journals (Sweden)

    John Hoon Rim

    2015-01-01

    Full Text Available While pulsed-field gel electrophoresis (PFGE is recognized as the gold standard method for clonality analysis, MALDI-TOF MS has recently been spotlighted as an alternative tool for species identification. Herein, we compared the dendrograms of multi-drug-resistant (MDR Acinetobacter baumannii isolates by using MALDI-TOF MS with those by using PFGE. We used direct colony and protein extraction methods for MALDI-TOF MS dendrograms. The isolates with identical PFGE patterns were grouped into different branches in MALDI-TOF MS dendrograms. Among the isolates that were classified as very close isolates in MALDI-TOF MS dendrogram, PFGE band patterns visually showed complete differences. We numeralized similarity among isolates by measuring distance levels. The Spearman rank correlation coefficient values were 0.449 and 0.297 between MALDI-TOF MS dendrogram using direct colony and protein extraction method versus PFGE, respectively. This study is the first paper focusing solely on the dendrogram function of MALDI-TOF MS compared with PFGE. Although MALDI-TOF MS is a promising tool to identify species in a rapid manner, our results showed that MALDI-TOF MS dendrograms could not substitute PFGE for MDR Acinetobacter baumannii clonality analysis.

  9. When Inequality Fails: Power, Group Dominance, and Societal Change

    Directory of Open Access Journals (Sweden)

    Felicia Pratto

    2013-12-01

    Full Text Available Social dominance theory was developed to account for why societies producing surplus take and maintain the form of group-based dominance hierarchies, in which at least one socially-constructed group has more power than another, and in which men are more powerful than women and adults more powerful than children. Although the theory has always allowed for societies to differ in their severity of group-based dominance and how it is implemented, it has predicted that alternative forms of societal organization will occur rarely and not last. This paper revisits aspects of the theory that allow for the possibility of societal alternatives and change. We also consider boundary conditions for the theory, and whether its current theoretical apparatus can account for societal change. By expanding the typical three-level dynamic system to describe societies (micro-meso-macro into four levels (including meta to consider how societies relate to one another, we identify political tensions that are unstable power structures rather than stable hierarchies. In research on institutions, we identify smaller-scale alternative forms of social organization. We identify logical, empirical, and theoretical shortcomings in social dominance theory’s account of stability and change, consider alternative forms of social organization, and suggest fruitful avenues for theoretical extension.

  10. Geothermal Power Potential in the Tatun Volcano Group, Taiwan

    Science.gov (United States)

    Tseng, H. H.; Song, S.

    2013-12-01

    Recent energy issues have concentrated the attention on finding alternative ones. National demands for renewable and sustainable energy increase rapidly, especially the geothermal power production, which is viewed as the most potential opportunity. This study attempts to estimate the geothermal powers in the Tatung Volcano Group (TVG), Taiwan and evaluate the possibility to develop the Enhanced Geothermal System. Tatung Volcano Group is located at the northwest part of Taiwan. It has violent volcanism during 0.8-0.20Ma, and is still active with many thermal manifestations. The young volcanic activity provides the TVG with high geothermal gradient and is well suitable for exploiting geothermal resources. Many explorations on geothermal energy have been accomplished in this area during1966-1973. They included resistivity survey, magnetic prospecting, gravity method, seismic prospecting and etc. In this study, we base on previous data and apply the probabilistic volumetric method proposed by Geotherm EX Inc., modified from the approach introduced by the USGS to evaluate the geothermal power potential in TVG. Meanwhile, use a Monte Carlo simulation technique to calculate the probability distribution of potentially recoverable energy reserves. The results show that the mean value is 270Mw, and P50 is 254Mw for 30 years, separately. Furthermore, the power potential of enhanced geothermal system in TVG is also estimated by the quantitative model proposed by Massachusetts Institute of Technology (MIT 2006). The results suggest that the mean value is 3,000 MW and P50 is 2,780 MW for 30 years, separately.

  11. Positive laws on generators in powerful pro-p groups

    CERN Document Server

    Acciarri, Cristina

    2011-01-01

    If G is a finitely generated powerful pro-p group satisfying a certain law v=1, and if G can be generated by a normal subset T of finite width which satisfies a positive law, we prove that G is nilpotent. Furthermore, the nilpotency class of G can be bounded in terms of the prime p, the number of generators of G, the law v=1, the width of T, and the degree of the positive law. The main interest of this result is the application to verbal subgroups: if G is a p-adic analytic pro-p group in which all values of a word w satisfy positive law, and if the verbal subgroup w(G) is powerful, then w(G) is nilpotent.

  12. 75 FR 29531 - Resale Power Group of Iowa, WPPI Energy v. ITC Midwest LLC, Interstate Power and Light Company...

    Science.gov (United States)

    2010-05-26

    .... EL10-68-000] Resale Power Group of Iowa, WPPI Energy v. ITC Midwest LLC, Interstate Power and Light...), and section 306 of the Federal Power Act, 16 U.S.C. 825(e) (2006), Resale Power Group of Iowa and WPPI Energy (Complainants) filed a formal complaint against ITC Midwest LLC and Interstate Power and...

  13. Understanding crowd-powered search groups: a social network perspective.

    Directory of Open Access Journals (Sweden)

    Qingpeng Zhang

    Full Text Available BACKGROUND: Crowd-powered search is a new form of search and problem solving scheme that involves collaboration among a potentially large number of voluntary Web users. Human flesh search (HFS, a particular form of crowd-powered search originated in China, has seen tremendous growth since its inception in 2001. HFS presents a valuable test-bed for scientists to validate existing and new theories in social computing, sociology, behavioral sciences, and so forth. METHODOLOGY: In this research, we construct an aggregated HFS group, consisting of the participants and their relationships in a comprehensive set of identified HFS episodes. We study the topological properties and the evolution of the aggregated network and different sub-groups in the network. We also identify the key HFS participants according to a variety of measures. CONCLUSIONS: We found that, as compared with other online social networks, HFS participant network shares the power-law degree distribution and small-world property, but with a looser and more distributed organizational structure, leading to the diversity, decentralization, and independence of HFS participants. In addition, the HFS group has been becoming increasingly decentralized. The comparisons of different HFS sub-groups reveal that HFS participants collaborated more often when they conducted the searches in local platforms or the searches requiring a certain level of professional knowledge background. On the contrary, HFS participants did not collaborate much when they performed the search task in national platforms or the searches with general topics that did not require specific information and learning. We also observed that the key HFS information contributors, carriers, and transmitters came from different groups of HFS participants.

  14. SVMRFE based approach for prediction of most discriminatory gene target for type II diabetes

    Directory of Open Access Journals (Sweden)

    Atul Kumar

    2017-06-01

    Full Text Available Type II diabetes is a chronic condition that affects the way our body metabolizes sugar. The body's important source of fuel is now becoming a chronic disease all over the world. It is now very necessary to identify the new potential targets for the drugs which not only control the disease but also can treat it. Support vector machines are the classifier which has a potential to make a classification of the discriminatory genes and non-discriminatory genes. SVMRFE a modification of SVM ranks the genes based on their discriminatory power and eliminate the genes which are not involved in causing the disease. A gene regulatory network has been formed with the top ranked coding genes to identify their role in causing diabetes. To further validate the results pathway study was performed to identify the involvement of the coding genes in type II diabetes. The genes obtained from this study showed a significant involvement in causing the disease, which may be used as a potential drug target.

  15. On the Variable Selection Problem in Multiple Group Discriminant Analysis.

    Science.gov (United States)

    Huberty, Carl J.

    This study was concerned with various schemes for reducing the number of variables in a multivariate analysis. Two sets of illustrative data were used; the numbers of criterion groups were 3 and 5. The proportion of correct classifications was employed as an index of discriminatory power of each subset of variables selected. Of the four procedures…

  16. 78 FR 1265 - Dana Holding Corporation; Power Technologies Group Division; Including On-Site Leased Workers...

    Science.gov (United States)

    2013-01-08

    ... Employment and Training Administration Dana Holding Corporation; Power Technologies Group Division; Including... Technologies Group Division, Milwaukee, Wisconsin (subject firm). The worker group includes on-site leased... Company, Power Technologies Group Division, Milwaukee, Wisconsin, who were engaged in employment...

  17. 77 FR 70484 - Preoperational Testing of Onsite Electric Power Systems To Verify Proper Load Group Assignments...

    Science.gov (United States)

    2012-11-26

    ... COMMISSION Preoperational Testing of Onsite Electric Power Systems To Verify Proper Load Group Assignments... Power Systems to Verify Proper Load Group Assignments, Electrical Separation, and Redundancy.'' DG-1294... encompass preoperational testing of electrical power systems used to meet current Station...

  18. The discriminatory capacity of ultrasound in rheumatoid arthritis

    DEFF Research Database (Denmark)

    Szkudlarek, Marcin; Wakefield, Richard J; Backhaus, Marina

    2012-01-01

    This review presents data about the discriminatory role of US in differentiating findings between healthy people and patients with RA and arthritides, comparisons between active and inactive changes in RA, as well as between early and advanced changes in RA as visualized with US. The theoretical ...

  19. Using Experimental Methods to Investigate Discriminatory Tendencies: A Lesson Report

    Science.gov (United States)

    Chen, Yu-Wen; Masch, Lena; Finze, Kristin

    2014-01-01

    Using dictator games in experimental analysis, this lesson report demonstrates the process and results of a postgraduate class project in which university students were instructed to scientifically investigate and explore one of German society's most hotly-contested issues: the level of discriminatory tendencies of non-Muslims towards Muslims. The…

  20. 14 CFR 1250.103-2 - Specific discriminatory acts prohibited.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 5 2010-01-01 2010-01-01 false Specific discriminatory acts prohibited. 1250.103-2 Section 1250.103-2 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION..., directly or through contractual or other arrangements, on ground of race, color, or national origin:...

  1. The Power Structure of 2-Generator 2-Groups of Class Two

    Institute of Scientific and Technical Information of China (English)

    Friedrich L. Kluempen

    2002-01-01

    In 1934, Hall introduced regular p-groups. Any regular 2-group is abelian. A regular p-group is power closed, exponent closed, strongly semi-pabelian, and an exact power margin group. The study of these properties and relationships among them constitutes the investigation of the power structure of a p-group. In this paper, we classify 2-generator 2-groups of nilpotency class two according to their power structure.

  2. 76 FR 58856 - Determination Regarding Waiver of Discriminatory Purchasing Requirements With Respect to Goods...

    Science.gov (United States)

    2011-09-22

    ... From the Federal Register Online via the Government Publishing Office OFFICE OF THE UNITED STATES TRADE REPRESENTATIVE Determination Regarding Waiver of Discriminatory Purchasing Requirements With...: Determination Regarding Waiver of Discriminatory Purchasing Requirements under the Trade Agreements Act of...

  3. 75 FR 35786 - Resale Power Group of Iowa, WPPI Energy v. ITC Midwest LLC, Interstate Power and Light Company...

    Science.gov (United States)

    2010-06-23

    ... Energy Regulatory Commission Resale Power Group of Iowa, WPPI Energy v. ITC Midwest LLC, Interstate Power and Light Company; Notice of Filing June 16, 2010. Take notice that, on June 15, 2010, Resale Power Group of Iowa and WPPI Energy filed a supplement to its complaint originally filed on May 18, 2010....

  4. Equality versus differentiation: the effects of power dispersion on group interaction.

    Science.gov (United States)

    Greer, Lindred L; van Kleef, Gerben A

    2010-11-01

    Power is an inherent characteristic of social interaction, yet research has yet to fully explain what power and power dispersion may mean for conflict resolution in work groups. We found in a field study of 42 organizational work groups and a laboratory study of 40 negotiating dyads that the effects of power dispersion on conflict resolution are contingent on the level of interactants' power, thereby explaining contradictory theory and findings on power dispersion. We found that when members have low power, power dispersion is positively related to conflict resolution, but when members have high power, power dispersion is negatively related to conflict resolution (i.e., power equality is better). These findings can be explained by the mediating role of intragroup power struggles. Together, these findings suggest that power hierarchies function as a heuristic solution for conflict and contribute to adaptive social dynamics in groups with low, but not high, levels of power.

  5. Interagency Advanced Power Group, Joint Electrical and Nuclear Working Group, meeting minutes, November 16--17, 1993

    Energy Technology Data Exchange (ETDEWEB)

    1993-12-31

    Reports on soldier power R&D review, N-MCT power electronic building blocks, silicon carbide power semiconductor work, and ground based radar were made to the Power Conditioning Panel. An introduction to high temperature electronics needs, research and development was made to the High Temperature Electronics Subcommittee. The Pulse Power Panel received reports on the navy ETC gun, and army pulse power. The Superconductivity Panel received reports on high-tc superconducting wires, superconducting magnetic energy storage, and superconducting applications. The Nuclear Working Group received presentations on the Topaz nuclear power program, and space nuclear work in the Department of Energy.

  6. Gender inequalities at the intersection of discriminatory mecha-nisms

    Directory of Open Access Journals (Sweden)

    Alina Hurubean

    2012-04-01

    Full Text Available The text aims to present less visible facet of discrimination by identifying social and cultural mechanisms that generate and maintain multiple forms of discrimination, the intersection of which gender has a central position, because he combine with all other criteria of discrimination (race, ethnicity, nationality, religion, social class, age, disability, multiplying the effect of discriminatory behavior. This paper highlights the gender inequalities, the disparities between women and men, boys and girls who are socially constructed which are produced in the process of education and differential gender socialization, asymmetric and hierarchical, correlated with educational and professional orientation and also with labor market access and situation. The fact that gender inequalities exist at a structural level and they are deeply rooted in social practices and collective mental lead to situations where discriminatory behavior manifested without being noticed and as less as sanctioned.

  7. The Relationship of Between Fuzzy Power Groups and Fuzzy Quotient Groups%Fuzzy幂群与Fuzzy商群的相互关系

    Institute of Scientific and Technical Information of China (English)

    闫广霞; 米洪海; 施雅婷

    2006-01-01

    In this paper, we extend the concept of fuzzy quotient groups. The structures of fuzzy power groups and fuzzy quotient groups are discussed. The relationship between fuzzy power groups and fuzzy quotient groups are considered.

  8. Sequence-based classification using discriminatory motif feature selection.

    Directory of Open Access Journals (Sweden)

    Hao Xiong

    Full Text Available Most existing methods for sequence-based classification use exhaustive feature generation, employing, for example, all k-mer patterns. The motivation behind such (enumerative approaches is to minimize the potential for overlooking important features. However, there are shortcomings to this strategy. First, practical constraints limit the scope of exhaustive feature generation to patterns of length ≤ k, such that potentially important, longer (> k predictors are not considered. Second, features so generated exhibit strong dependencies, which can complicate understanding of derived classification rules. Third, and most importantly, numerous irrelevant features are created. These concerns can compromise prediction and interpretation. While remedies have been proposed, they tend to be problem-specific and not broadly applicable. Here, we develop a generally applicable methodology, and an attendant software pipeline, that is predicated on discriminatory motif finding. In addition to the traditional training and validation partitions, our framework entails a third level of data partitioning, a discovery partition. A discriminatory motif finder is used on sequences and associated class labels in the discovery partition to yield a (small set of features. These features are then used as inputs to a classifier in the training partition. Finally, performance assessment occurs on the validation partition. Important attributes of our approach are its modularity (any discriminatory motif finder and any classifier can be deployed and its universality (all data, including sequences that are unaligned and/or of unequal length, can be accommodated. We illustrate our approach on two nucleosome occupancy datasets and a protein solubility dataset, previously analyzed using enumerative feature generation. Our method achieves excellent performance results, with and without optimization of classifier tuning parameters. A Python pipeline implementing the approach is

  9. Equality versus differentiation: the effects of power dispersion on group interaction

    NARCIS (Netherlands)

    Greer, L.L.; van Kleef, G.A.

    2010-01-01

    Power is an inherent characteristic of social interaction, yet research has yet to fully explain what power and power dispersion may mean for conflict resolution in work groups. We found in a field study of 42 organizational work groups and a laboratory study of 40 negotiating dyads that the effects

  10. Communities of Inquiry: Politics, Power and Group Dynamics

    Science.gov (United States)

    Burgh, Gilbert; Yorshansky, Mor

    2011-01-01

    The notion of a community of inquiry has been treated by many of its proponents as being an exemplar of democracy in action. We argue that the assumptions underlying this view present some practical and theoretical difficulties, particularly in relation to distribution of power among the members of a community of inquiry. We identify two…

  11. KANSAS WIND POWERING AMERICAN STATE OUTREACH: KANSAS WIND WORKING GROUP

    Energy Technology Data Exchange (ETDEWEB)

    HAMMARLUND, RAY

    2010-10-27

    The Kansas Wind Working Group (WWG) is a 33-member group announced by former Governor Kathleen Sebelius on Jan. 7, 2008. Formed through Executive Order 08-01, the WWG will educate stakeholder groups with the current information on wind energy markets, technologies, economics, policies, prospects and issues. Governor Mark Parkinson serves as chair of the Kansas Wind Working Group. The group has been instrumental in focusing on the elements of government and coordinating government and private sector efforts in wind energy development. Those efforts have moved Kansas from 364 MW of wind three years ago to over 1000 MW today. Further, the Wind Working Group was instrumental in fleshing out issues such as a state RES and net metering, fundamental parts of HB 2369 that was passed and is now law in Kansas. This represents the first mandatory RES and net metering in Kansas history.

  12. Using Experimental Methods to Investigate Discriminatory Tendencies: A Lesson Report

    Directory of Open Access Journals (Sweden)

    Yu-Wen Chen

    2013-08-01

    Full Text Available Using dictator games in experimental analysis, this lesson report demonstrates the process and results of a postgraduate class project in which university students were instructed to scientifically investigate and explore one of German society’s most hotly-contested issues: the level of discriminatory tendencies of non-Muslims towards Muslims. The results of this class project show little or no discriminatory tendencies toward Muslims. Instead, the university students under our investigation tended to act favorably, or at the very least, fairly toward Muslims. We expect that this lesson report can demonstrate how a postgraduate course can be conducted in an innovative way, empowering students to collect primary data and finishing a small scientific project during the span of a semester. Dieser Bericht stellt die Prozesse und Ergebnisse einer experimentellen Studie eines Postgraduierten-Kurses der Universität Greifswald dar. Wir zeigen, wie Studierende das Thema Migration innovativ untersuchen können, indem sie neben theoretischen Lerninhalten an experimentelle Methoden sowie die Primärforschung herangeführt werden. Anhand eines Diktatorspiels wurden die teilnehmenden Studenten angeleitet, ein in der Öffentlichkeit kontrovers debattiertes Thema wissenschaftlich zu untersuchen: Diskriminierende Tendenzen von Nicht-Muslimen gegenüber Muslimen. Die Ergebnisse dieser Studie lassen jedoch nicht auf diskriminierende Tendenzen der Studenten schließen. Stattdessen deuten sie darauf hin, dass sich die Studierenden zumindest fair gegenüber Muslimen verhalten.

  13. Group Search Optimization for Fixed Head Hydrothermal Power System

    Science.gov (United States)

    Jena, Chitralekha; Basu, Mousumi

    2017-02-01

    This paper presents group search optimization for optimal scheduling of thermal plants in coordination with fixed head hydro units. Numerical results for two test systems have been presented to demonstrate the performance of the proposed method. Results obtained from the proposed group search optimization method have been compared with those obtained from differential evolution and evolutionary programming.

  14. 76 FR 4103 - Central Minnesota Municipal Power Agency, Midwest Municipal Transmission Group; Notice of Filing

    Science.gov (United States)

    2011-01-24

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Central Minnesota Municipal Power Agency, Midwest Municipal Transmission... Municipal Power Agency and Midwest Municipal Transmission Group submitted an amendment to a petition for...

  15. Non abelian tensor square of non abelian prime power groups

    OpenAIRE

    2010-01-01

    For every $p$-group of order $p^n$ with the derived subgroup of order $p^m$, Rocco in \\cite{roc} has shown that the order of tensor square of $G$ is at most $p^{n(n-m)}$. In the present paper not only we improve his bound for non-abelian $p$-groups but also we describe the structure of all non-abelian $p$-groups when the bound is attained for a special case. Moreover, our results give as well an upper bound for the order of $\\pi_3(SK(G, 1))$.

  16. When sparks fly harnessing the power of group creativity

    CERN Document Server

    Leonard, Dorothy

    2005-01-01

    Creativity and innovation are evergreen topics. Particularly in today's tough marketplace, companies in every industry are looking for ways to harness creativity and innovation to spur growth and enhance competitiveness. This book differs from many books on creativity in that its focus is on how to manage a group, rather than individual creativity. It refutes much conventional wisdom about where creativity comes from, particularly that creativity does not stem from the random genius of individuals. The authors reveal specific group configurations and strategies that can unleash the collective creativity of any team or group.

  17. Linguistic Power Wielding and Manipulation Strategies in Group Conversations Between Turkish-Danish Children

    OpenAIRE

    Lian Malai Madsen

    2004-01-01

    The study concerns the linguistic power wielding in group conversations among bilingual children and adolescents. In bilingual conversations one of the pragmatic linguistic means of negotiating power relations and identities is of course the choice of language. This is also the main subject of the study of Jørgensen (1993) who presents a view on the linguistic power wielding in group conversation in which he combines code-switching theories with Kjøller’s (1991) concepts of linguistic power w...

  18. 77 FR 51064 - Dana Holding Corporation, Power Technologies Group Division, Including On-Site Leased Workers...

    Science.gov (United States)

    2012-08-23

    ... Employment and Training Administration Dana Holding Corporation, Power Technologies Group Division, Including... Holding Corporation, Power Technologies Group Division, Milwaukee, Wisconsin (subject firm). The negative... competitive articles) in 2011 and 2012, loss of business with a firm that employed a worker group eligible...

  19. Beyond Idea Generation: The Power of Groups in Developing Ideas

    Science.gov (United States)

    McMahon, Kibby; Ruggeri, Azzurra; Kämmer, Juliane E.; Katsikopoulos, Konstantinos V.

    2016-01-01

    Brainstorming research has claimed that individuals are more creative than groups. However, these conclusions are largely based on measuring creativity by the number of ideas generated, and researchers have tended to neglect other important components of creativity, such as the quality of developed ideas. These studies aim to address this gap in…

  20. Beyond Idea Generation: The Power of Groups in Developing Ideas

    Science.gov (United States)

    McMahon, Kibby; Ruggeri, Azzurra; Kämmer, Juliane E.; Katsikopoulos, Konstantinos V.

    2016-01-01

    Brainstorming research has claimed that individuals are more creative than groups. However, these conclusions are largely based on measuring creativity by the number of ideas generated, and researchers have tended to neglect other important components of creativity, such as the quality of developed ideas. These studies aim to address this gap in…

  1. Influences of Discriminatory Incidents on Immigrants’ Attitudes Toward German Society

    Directory of Open Access Journals (Sweden)

    Jan Döring

    2007-01-01

    Full Text Available This article presents findings from a quantitative survey (N = 301 to evaluate the impact discriminatory incidents have on the attitudes of immigrants towards the majority society in Germany.The findings show that there is a strong relationship between experiences of discrimination and a hostile or alienated attitude towards German society. As an attempt to explain this generalization from single incidents to the macro relation between immigrants and autochthonous Germans in general a theory of framing, taken from developments in the field of rational choice theory, is applied. The reasoning is that a generalizing and rather hostile framing in terms of the attitude towards Germans can minimize psychic, emotional and social costs resulting from acts of discrimination.

  2. Aboriginal groups taking leadership positions in power sector

    Energy Technology Data Exchange (ETDEWEB)

    Kishewitsch, S.

    2009-09-15

    First Nations and Metis communities are now initiating and managing projects in the Canadian energy sector. Federal and provincial governments are now developing training programs to ensure that Aboriginal communities develop the skills needed to successfully manage energy projects. The Supreme Court of Canada has issued a number of rulings ensuring that companies and government agencies have a duty to consult with Aboriginal people when Crown decisions impact Treaty or Aboriginal rights. The Ministry of Energy and Infrastructure has now set up a unit to provide advice and guidance to facilitate partnership opportunities with First Nations and Metis communities. Major companies in Ontario have also developed consultation policies that focus on relationship building, internal education, and promoting business and workforce development. The Pic River First Nation group now owns a minority interest in the Wawatay generating station. A 23 MW facility is fully owned by the First Nations group. The province of Ontario has made a provision for up to $250 million to serve as loan guarantees for First Nations groups. It was concluded that the Electricity Sector Council (ESC) has developed an Aboriginal participation engagement project designed to increase Aboriginal awareness of opportunities within the electricity and renewable energy sector. 3 figs.

  3. Measuring discrimination in South Korea: underestimating the prevalence of discriminatory experiences among female and less educated workers?

    Directory of Open Access Journals (Sweden)

    Seung-Sup Kim

    Full Text Available OBJECTIVES: To investigate the possibility that Koreans show different patterns in reporting discriminatory experiences based on their gender and education level, we analyzed the participants who answered "Not Applicable" for the questions of discriminatory experiences that they were eligible to answer. METHODS: Discriminatory experiences in eight social situations were assessed using the 7(th wave of Korean Labor and Income Panel Study. After restricting the study population to waged workers, a logistic regression model was constructed to predict the probability that an individual has experienced discrimination based on the observed covariates for each of eight situations, using the data of participants who answered either Yes or No. With the model fit, the predicted logit score of discrimination (PLSD was obtained for participants who answered Not Applicable (NA, as well as for those who answered Yes or No. The mean PLSD of the NA group was compared with those of the Yes group and the No group after stratification by gender and education level using an ANOVA model. RESULTS: On the questions of discrimination in getting hired and receiving income, the PLSD of the NA group was significantly higher than that of the No group and was not different from that of Yes group for female and junior high or less educated workers, suggesting that their NA responses were more likely to mean that they have experienced discrimination. For male and college or more educated workers, the NA group had a PLSD similar to that for the No group and had a significantly higher PLSD than the Yes group, implying that their NA responses would mean they that they have not experienced discrimination. CONCLUSIONS: Our findings suggest that the responses of NA on the discrimination questionnaire may need different interpretation based on the respondents' gender and education level in South Korea.

  4. Attracted to power: challenge/threat and promotion/prevention focus differentially predict the attractiveness of group power.

    Science.gov (United States)

    Scholl, Annika; Sassenrath, Claudia; Sassenberg, Kai

    2015-01-01

    Depending on their motivation, individuals prefer different group contexts for social interactions. The present research sought to provide more insight into this relationship. More specifically, we tested how challenge/threat and a promotion/prevention focus predict attraction to groups with high- or low-power. As such, we examined differential outcomes of threat and prevention focus as well as challenge and promotion focus that have often been regarded as closely related. According to regulatory focus, individuals should prefer groups that they expect to "feel right" for them to join: Low-power groups should be more attractive in a prevention (than a promotion) focus, as these groups suggest security-oriented strategies, which fit a prevention focus. High-power groups should be more attractive in a promotion (rather than a prevention) focus, as these groups are associated with promotion strategies fitting a promotion focus (Sassenberg et al., 2007). In contrast, under threat (vs. challenge), groups that allow individuals to restore their (perceived) lack of control should be preferred: Low-power groups should be less attractive under threat (than challenge) because they provide low resources which threatened individuals already perceive as insufficient and high-power groups might be more attractive under threat (than under challenge), because their high resources allow individuals to restore control. Two experiments (N = 140) supported these predictions. The attractiveness of a group often depends on the motivation to engage in what fits (i.e., prefer a group that feels right in the light of one's regulatory focus). However, under threat the striving to restore control (i.e., prefer a group allowing them to change the status quo under threat vs. challenge) overrides the fit effect, which may in turn guide individuals' behavior in social interactions.

  5. On the power graphs which are Cayley graphs of some groups

    OpenAIRE

    Mukherjee, S.; Bhuniya, A. K.

    2015-01-01

    In 2013, Jemal Abawajy, Andrei Kelarev and Morshed Chowdhury [1] proposed a problem to characterize the finite groups whose power graphs are Cayley graphs of some groups. Here we give a complete answer to this question.

  6. Power-supply-operations group-training programs, ac/dc power systems and micellaneous information

    Energy Technology Data Exchange (ETDEWEB)

    Harris, C A

    1978-06-30

    This program introduces the technician to three phase a-c power and its relationship to rectifier power conversion systems. A brief introduction is given as to the engineering significance of various parameters such as, phase rotation, ac power relationships, harmonics, transformer voltage vectors, rectifier parameters, filters, water cooling, phase delayed triggers to SCR's, dielectric stress vs life and other related subjects. The significance of the details as they apply to various diagnostic problems that a technician may be called upon to solve is emphasized. Reference CAPE-2747.

  7. 75 FR 6199 - Central Minnesota Municipal Power Agency and Midwest Municipal Transmission Group, Inc.; Notice...

    Science.gov (United States)

    2010-02-08

    ... Federal Energy Regulatory Commission Central Minnesota Municipal Power Agency and Midwest Municipal Transmission Group, Inc.; Notice of Filing February 1, 2010. Take notice that on January 25, 2010, Central Minnesota Municipal Power Agency and Midwest Municipal Transmission Group, Inc. (CMMPA/ MMTG) filed with...

  8. Mental disability and discriminatory practices: effects of social representations of the Mexican population.

    Science.gov (United States)

    Mariana, Espinola-Nadurille; Guadalupe, Delgado

    2009-05-01

    The prevalence of mental disorders in Mexico is 26.1%. This shows that an important percentage of the population suffers from mental disability. Despite this the country's healthcare system does not provide the least acceptable standard of care for the mentally disabled. The aim of this study was to describe the general population's social representations of the disabled and analyze their relationship with the discriminatory practices from the state towards the mentally ill with respect to their right to health. This study was a secondary analysis of the First National Survey on Discrimination in Mexico. In the survey 1,437 effective interviews that comprised a representative sample, were obtained from people aged 18 to 60 living in rural and urban settings. The response rate was 76.5%. The assessment tool was a self-administered questionnaire that yielded perceptions, attitudes, values and social representations about discrimination towards groups of people that supposedly were targets of discrimination by the general population. In the survey the mentally ill were included under disability. As a secondary analysis of the survey for the purpose of this study, we selected a subset of questions that provided important information about social representations of the general Mexican population towards persons with disabilities. The general population's social representations of the disabled were analyzed. The disabled are the second group after the elderly perceived as the most discriminated and neglected and bearing more suffering. A whole set of negative representations concerning the disabled, such as lack of acceptance and respect, low self-confidence, mistreatment, incomprehension, isolation, intolerance, indifference and bad attitudes from others, were elicited. Social representations are social correspondents of the discriminatory practices that the state exerts toward the mentally ill with respect to their right to health. These representations serve to

  9. Ternary codes associated with symplectic groups and power moments of Kloosterman sums with square arguments

    OpenAIRE

    Kim, Dae San; Kim, Ji Hyun

    2011-01-01

    In this paper, we construct two ternary linear codes associated with the symplectic groups Sp(2,q) and Sp(4,q). Here q is a power of three. Then we obtain recursive formulas for the power moments of Kloosterman sums with square arguments and for the even power moments of those in terms of the frequencies of weights in the codes. This is done via Pless power moment identity and by utilizing the explicit expressions of "Gauss sums" for the symplectic groups Sp(2n,q).

  10. Wind power and micro-hydro generation: proceedings of the East Midland Universities Renewable Energy Group

    Energy Technology Data Exchange (ETDEWEB)

    Twidell, J. [De Montfort Univ., Leicester (United Kingdom)

    1995-07-01

    This document introduces the proceedings of the East Midland Universities Renewable Energy Group, a forum for young post-graduate students. The conference included papers on wind power and small-scale hydroelectric power as sources for electric power, including theoretical investigations of wind turbine structures and control and analysis of electric motors adapted as generators for micro-hydro sets, the strategy for micro-hydro developments and the integration of wind and photovoltaic power, backed up by combined heat and power plant. (UK)

  11. Science Research Group Leader's Power and Members' Compliance and Satisfaction with Supervision

    Science.gov (United States)

    Meng, Yi; He, Jia; Luo, Changkun

    2014-01-01

    This study investigated the correlations between science research group members' perceptions of power bases used by their group (lab, team) leader (coercive, reward, legitimate, expert and referent) and the effect of those perceptions on group members' attitudinal compliance, behavioral compliance, and satisfaction with supervision. Participants…

  12. 76 FR 45248 - PJM Interconnection, L.L.C., PJM Power Providers Group v. PJM Interconnection, L.L.C...

    Science.gov (United States)

    2011-07-28

    ... Energy Regulatory Commission PJM Interconnection, L.L.C., PJM Power Providers Group v. PJM... Load Group, PJM Power Providers Group, and PSEG Companies. All interested parties are invited to attend... Load Group Dr. Roy Shanker, Consultant, PJM Power Providers Group Dr. William Hogan, Professor,...

  13. The far-reaching effects of power: at the individual, dyadic, and group levels

    NARCIS (Netherlands)

    Galinsky, A.D.; Chou, E.Y.; Halevy, N.; Van Kleef, G.A.; Neale, M.A.; Mannix, E.A.

    2012-01-01

    Purpose - This chapter provides a framework that captures the fundamental impacts of power at the individual, dyadic, small group, and organizational levels. Within each level, we trace the psychological, cognitive, and behavioral consequences of having or lacking power. Approach - We integrate theo

  14. 77 FR 11515 - Application To Export Electric Energy; Pilot Power Group, Inc.

    Science.gov (United States)

    2012-02-27

    ... Application To Export Electric Energy; Pilot Power Group, Inc. AGENCY: Office of Electricity Delivery and...) has applied for authority to transmit electric energy from the United States to Mexico pursuant to... Power for authority to transmit electric energy from the United States to Mexico for five years as...

  15. Renormalization group approach to power-law modeling of complex metabolic networks.

    Science.gov (United States)

    Hernández-Bermejo, Benito

    2010-08-07

    In the modeling of complex biological systems, and especially in the framework of the description of metabolic pathways, the use of power-law models (such as S-systems and GMA systems) often provides a remarkable accuracy over several orders of magnitude in concentrations, an unusually broad range not fully understood at present. In order to provide additional insight in this sense, this article is devoted to the renormalization group analysis of reactions in fractal or self-similar media. In particular, the renormalization group methodology is applied to the investigation of how rate-laws describing such reactions are transformed when the geometric scale is changed. The precise purpose of such analysis is to investigate whether or not power-law rate-laws present some remarkable features accounting for the successes of power-law modeling. As we shall see, according to the renormalization group point of view the answer is positive, as far as power-laws are the critical solutions of the renormalization group transformation, namely power-law rate-laws are the renormalization group invariant solutions. Moreover, it is shown that these results also imply invariance under the group of concentration scalings, thus accounting for the reported power-law model accuracy over several orders of magnitude in metabolite concentrations. Copyright 2010 Elsevier Ltd. All rights reserved.

  16. High Power test of a low group velocity X-band Accelerator Structure for CLIC

    CERN Document Server

    Döbert, S; Riddone, G; Taborelli, M; Wuensch, W; Zennaro, R; Fukuda, S; Higashi, Y; Higo, T; Matsumoto, S; Ueno, K; Yokoyama, K; Adolphsen, C; Dolgashev, V; Laurent, L; Lewandowski, J; Tantawi, S; Wang, F; Wang, JW

    2008-01-01

    In recent years evidence has been found that the maximum sustainable gradient in an accelerating structure depends on the rf power flow through the structure. The CLIC study group has consequently designed a new prototype structure for CLIC with a very low group velocity, input power and average aperture ( = 0.13). The 18 cell structure has a group velocity of 2.6 % at the entrance and 1 % at the last cell. Several of these structures have been made in a collaboration between KEK, SLAC and CERN. A total of five brazed-disk structures and two quadrant structures have been made. The high power results of the first KEK/SLAC built structure is presented which reached an unloaded gradient in excess of 100 MV/m at a pulse length of 230 ns with a breakdown rate below 10-6 per meter active length. The high-power testing was done using the NLCTA facility at SLAC.

  17. Development of a discriminatory biocompatibility testing model for non-precious dental casting alloys.

    LENUS (Irish Health Repository)

    McGinley, Emma Louise

    2011-12-01

    To develop an enhanced, reproducible and discriminatory biocompatibility testing model for non-precious dental casting alloys, prepared to a clinically relevant surface finishing condition, using TR146 oral keratinocyte cells.

  18. An Identity-Based Group Key Agreement Proto col for Low-Power Mobile Devices

    Institute of Scientific and Technical Information of China (English)

    TENG Jikai; WU Chuankun

    2016-01-01

    In wireless mobile networks, group mem-bers join and leave the group frequently, a dynamic group key agreement protocol is required to provide a group of users with a shared secret key to achieve cryptographic goal. Most of previous group key agreement protocols for wireless mobile networks are static and employ traditional PKI. This paper presents an ID-based dynamic authen-ticated group key agreement protocol for wireless mobile networks. In Setup and Join algorithms, the protocol re-quires two rounds and each low-power node transmits con-stant size of messages. Furthermore, in Leave algorithm, only one round is required and none of low-power nodes is required to transmit any message, which improves the effi-ciency of the entire protocol. The protocol’s AKE-security with forward secrecy is proved under Decisional bilinear in-verse Diffie-Hellman (DBIDH) assumption. It is addition-ally proved to be contributory.

  19. Discriminatory accuracy and potential clinical utility of genomic profiling for breast cancer risk in BRCA-negative women.

    Science.gov (United States)

    Comen, E; Balistreri, L; Gönen, M; Dutra-Clarke, A; Fazio, M; Vijai, J; Stadler, Z; Kauff, N; Kirchhoff, T; Hudis, C; Offit, K; Robson, M

    2011-06-01

    Several single nucleotide polymorphisms (SNPs) are associated with an increased risk of breast cancer. The clinical utility of genotyping individuals at these loci is not known. Subjects were 519 unaffected women without BRCA mutations. Gail, Claus, and IBIS models were used to estimate absolute breast cancer risks. Subjects were then genotyped at 15 independent risk loci. Published per-allele and genotype-specific odds ratios were used to calculate the composite cumulative genomic risk (CGR) for each subject. Affected age- and ethnicity-matched BRCA mutation-negative women were also genotyped as a comparison group for the calculation of discriminatory accuracy. The CGR was used to adjust absolute breast cancer risks calculated by Gail, Claus and IBIS models to determine the proportion of subjects whose recommendations for chemoprevention or MRI screening might be altered (reclassified) by such adjustment. Mean lifetime breast cancer risks calculated using the Gail, Claus, and IBIS models were 19.4, 13.0, and 17.7%, respectively. CGR did not correlate with breast cancer risk as calculated using any model. CGR was significantly higher in affected women (mean 3.35 vs. 3.12, P = 0.009). The discriminatory accuracy of the CGR alone was 0.55 (SE 0.019; P = 0.006). CGR adjustment of model-derived absolute risk estimates would have altered clinical recommendations for chemoprevention in 11-19% of subjects and for MRI screening in 8-32%. CGR has limited discriminatory accuracy. However, the use of a genomic risk term to adjust model-derived estimates has the potential to alter individual recommendations. These observations warrant investigation to evaluate the calibration of adjusted risk estimates.

  20. Discriminatory ability of fractal and grey level co-occurrence matrix methods in structural analysis of hippocampus layers.

    Science.gov (United States)

    Pantic, Igor; Dacic, Sanja; Brkic, Predrag; Lavrnja, Irena; Jovanovic, Tomislav; Pantic, Senka; Pekovic, Sanja

    2015-04-07

    Fractal and grey level co-occurrence matrix (GLCM) analysis represent two mathematical computer-assisted algorithms that are today thought to be able to accurately detect and quantify changes in tissue architecture during various physiological and pathological processes. However, despite their numerous applications in histology and pathology, their sensitivity, specificity and validity regarding evaluation of brain tissue remain unclear. In this article we present the results indicating that certain parameters of fractal and GLCM analysis have high discriminatory ability in distinguishing two morphologically similar regions of rat hippocampus: stratum lacunosum-moleculare and stratum radiatum. Fractal and GLCM algorithms were performed on a total of 240 thionine-stained hippocampus micrographs of 12 male Wistar albino rats. 120 digital micrographs represented stratum lacunosum-moleculare, and another 120 stratum radiatum. For each image, 7 parameters were calculated: fractal dimension, lacunarity, GLCM angular second moment, GLCM contrast, inverse difference moment, GLCM correlation, and GLCM variance. GLCM variance (VAR) resulted in the largest area under the Receiver operating characteristic (ROC) curve of 0.96, demonstrating an outstanding discriminatory power in analysis of stratum lacunosum-moleculare (average VAR equaled 478.1 ± 179.8) and stratum radiatum (average VAR of 145.9 ± 59.2, p fractal and textural analysis. GLCM algorithm as an image analysis method has potentially high applicability in structural analysis of brain tissue cytoarcitecture.

  1. Design and validation of a highly discriminatory 10-locus Y-chromosome STR multiplex system

    KAUST Repository

    D'Amato, María Eugenia

    2011-03-01

    The Y-chromosome STRs (short tandem repeat) markers are routinely utilized in the resolution of forensic casework related to sexual assault. For this, the forensic community has adopted a set of eleven (core) Y-STR that is incorporated in all commercial diagnostic systems. Our previous studies of Y-STR polymorphisms in the South African population identified low levels of diversity and discrimination capacity for many commercial marker sets, determining a limited applicability of these systems to the local population groups. To overcome this shortcoming, we designed a Y-STR 10-plex system that shows higher discriminatory capacity (DC) than available commercial systems. The markers were selected from a population group of 283 individuals with African, European and Asian ancestry genotyped at 45 Y-STRs, applying an optimization based selection procedure to achieve the highest possible DC with the minimal number of markers. The 10-plex was satisfactorily subjected to developmental validation tests following the SWGDAM guidelines and shows potential for its application to genealogical and evolutionary studies. © 2010 Elsevier Ireland Ltd.

  2. Capacidad discriminatoria y concordancia entre el ELISA-F29 y la PCR en individuos con infección por T. cruzi / Discriminatory Power and Concordance between ELISA-F29 and PCR in Individuals with Infection due to T.cruzi / Capacidade discriminatória e acordo entre o ELISA-F29 e a PCR em indivíduos infectados com T. cruzi

    Directory of Open Access Journals (Sweden)

    Edgar David Gómez-Laitón, MD.

    2015-07-01

    , Polo-Ardila LA, Castellanos-Domínguez YZ, Herrera VM, Villar JC. Discriminatory power and concordance between ELISA-F29 and PCR in individuals with infection due to T.cruzi. MedUNAB 2015; 18 (1: 27-33]. Introdução: O diagnóstico de infecção por Trypanosoma cruzi (T. cruzi é rotineiramente realizado por sorologia, enquanto o uso de métodos moleculares ainda está sendo padronizado. Objetivo: Avaliar a capacidade discriminatória e a concordância entre um teste sorológico e o molecular para determinar a infecção pelo T. cruzi. Metodologia: Foi realizada a Reação em Cadeia da Polimerase (PCR e a prova de ELISA-F29 em 95 amostras de participantes da coorte "Investigação em Saúde Cardiovascular e colaboração com os países da América para avaliar os marcadores e resultados de doença de Chagas" CHICAMOCHA. Foi avaliada a capacidade discriminatória do ELISA-F29 com relação aos resultados de PCR por meio da avaliação da área com a curva de ROC. A taxa de falsos positivos é estimada em 25% e a de sensibilidade em 75%. A correlação é determinada por Cohen kappa. Resultados: Foram realizados testes de PCR em dois momentos diferentes, em 95 indivíduos (idade média: 38 anos; 64% do sexo masculino, com taxas de positividade entre 1,1% - 2,2% para os primeiros S35-S36 e entre 18,3% - 34,7% para os primeiros 121-122, respectivamente. O poder discriminatório ELISA-F29 sobre PCR foi 0,62 (IC 95%: 0,53; 0,70 e taxa de falsos positivos de 56% (IC 95%: 42; 70. O ponto de corte ótimo para a relação de absorvância foi de 2,53 (59% de sensibilidade, especificidade de 60%. Para os primeiros 121-122, de acordo com os níveis observados e kappas estimadas foram 52.6% e 0.10 (IC95%: -0.08, 0.28 para a primeira medição, 62.4% e 0.09 (IC 95%: -0.09, 0 .28 para a segunda medição, 57.5% e 0,13 (IC95%: 0.01, 0.26 ao avaliar simultaneamente as duas medições. Conclusões: Os resultados mostram pouca concordância evidenciada pelos valores de kappa determinados

  3. 76 FR 27366 - Chrysler Group, LLC, Power Train Division, Mack Avenue Engine Plants #1 And #2, Including On-Site...

    Science.gov (United States)

    2011-05-11

    ... Employment and Training Administration Chrysler Group, LLC, Power Train Division, Mack Avenue Engine Plants 1... Group, LLC, Power Train Division, Mack Avenue Engine Plant 1, including on-site leased workers of... period at the Mack Avenue Engine Plant 2, Detroit, Michigan location of Chrysler Group, LLC, Power...

  4. Estimating trend precision and power to detect trends across grouped count data

    Science.gov (United States)

    Gray, B.R.; Burlew, M.M.

    2007-01-01

    Ecologists commonly use grouped or clustered count data to estimate temporal trends in counts, abundance indices, or abundance. For example, the U.S. Breeding Bird Survey data represent multiple counts of birds from within each of multiple, spatially defined routes. Despite a reliance on grouped counts, analytical methods for prospectively estimating precision of trend estimates or statistical power to detect trends that explicitly acknowledge the characteristics of grouped count data are undescribed. These characteristics include the fact that the sampling variance is an increasing function of the mean, and that sampling and group-level variance estimates are generally estimated on different scales (the sampling and log scales, respectively). We address these issues for repeated sampling of a single population using an analytical approach that has the flavor of a generalized linear mixed model, specifically that of a negative binomial-distributed count variable with random group effects. The count mean, including grand intercept, trend, and random group effects, is modeled linearly on the log scale, while sampling variance of the mean is estimated on the log scale via the delta method. Results compared favorably with those derived using Monte Carlo simulations. For example, at trend = 5% per temporal unit, differences in standard errors and in power were modest relative to those estimated by simulation (???|11|% and ???|16|%, respectively), with relative differences among power estimates decreasing to ???|7|% when power estimated by simulations was ???0.50. Similar findings were obtained using data from nine surveys of fingernail clams in the Mississippi River. The proposed method is suggested (1) where simulations are not practical and relative precision or power is desired, or (2) when multiple precision or power calculations are required and where the accuracy of a fraction of those calculations will be confirmed using simulations. ?? 2007 by the Ecological

  5. Operation of the power information center: Performance of secretariat functions and information exchange activities in the advanced power field of the interagency advanced power group

    Science.gov (United States)

    1983-01-01

    Highlights of activities conducted during the reporting period to facilitate the exchange of technical information among scientists and engineers both within the federal government and within industry are cited. Interagency Advanced Power Group meetings and special efforts, project briefs, and organization development are considered.

  6. Power of the muscular group's taekwondokas of the different qualification in steady-state mode.

    Directory of Open Access Journals (Sweden)

    Saienko Vladimir Grigor'evich

    2011-11-01

    Full Text Available Data are given meaningful totals display of force the muscle groups in athletes in the static mode. Displaying characteristics of muscle groups, hands (7, legs (5, trunk (2.The experiment involved 110 athletes (1-5 years experience training, age - 14-25 years old. Quantitative indicators, which reflect the individual level of informative power trained athletes. The optimum parameters of power qualities of athletes. Recommended use in training of special methods of strength training (isometric, concentric, eccentric, plyometric, isokinetic. In training must take into account the resistance, speed, joint angles, number of repetitions of the same approach.

  7. Internal Consistency and Power When Comparing Total Scores from Two Groups.

    Science.gov (United States)

    Barchard, Kimberly A; Brouwers, Vincent

    2016-01-01

    Researchers now know that when theoretical reliability increases, power can increase, decrease, or stay the same. However, no analytic research has examined the relationship of power to the most commonly used type of reliability-internal consistency-and the most commonly used measures of internal consistency, coefficient alpha and ICC(A,k). We examine the relationship between the power of independent samples t tests and internal consistency. We explicate the mathematical model upon which researchers usually calculate internal consistency, one in which total scores are calculated as the sum of observed scores on K measures. Using this model, we derive a new formula for effect size to show that power and internal consistency are influenced by many of the same parameters but not always in the same direction. Changing an experiment in one way (e.g., lengthening the measure) is likely to influence multiple parameters simultaneously; thus, there are no simple relationships between such changes and internal consistency or power. If researchers revise measures to increase internal consistency, this might not increase power. To increase power, researchers should increase sample size, select measures that assess areas where group differences are largest, and use more powerful statistical procedures (e.g., ANCOVA).

  8. An Iterative Power Allocation Algorithm for Group-wise Space-Time Block Coding Systems

    Institute of Scientific and Technical Information of China (English)

    ZHANG Hong-wei; ZHANG Hai-bin; SONG Wen-tao; LUO Han-wen; LIU Xing-zhao

    2007-01-01

    An iterative transmit power allocation (PA) algorithm was proposed for group-wise space-time block coding (G-STBC) systems with group-wise successive interference cancellation (GSIC) receivers.Group-wise interference suppression (GIS) filters are employed to separate each group's transmit signals from other interfer ences and noise.While the total power on all transmit symbols is constrained, all transmit PA coefficients are updated jointly according to the channel information at each iteration.Through PA, each detection symbol has the same post-detection signal to interference-and-noise ratio (SINR).The simulation results verify that the proposed PA algorithm converges at the equilibrium quickly after few iterations, and it achieves much lower bit error rates than the previous single symbol SIC PA and the fixed ratio PA algorithms for G-STBC systems with GSIC receivers.

  9. Grey Comprehensive Evaluation of Biomass Power Generation Project Based on Group Judgement

    Science.gov (United States)

    Xia, Huicong; Niu, Dongxiao

    2017-06-01

    The comprehensive evaluation of benefit is an important task needed to be carried out at all stages of biomass power generation projects. This paper proposed an improved grey comprehensive evaluation method based on triangle whiten function. To improve the objectivity of weight calculation result of only reference comparison judgment method, this paper introduced group judgment to the weighting process. In the process of grey comprehensive evaluation, this paper invited a number of experts to estimate the benefit level of projects, and optimized the basic estimations based on the minimum variance principle to improve the accuracy of evaluation result. Taking a biomass power generation project as an example, the grey comprehensive evaluation result showed that the benefit level of this project was good. This example demonstrates the feasibility of grey comprehensive evaluation method based on group judgment for benefit evaluation of biomass power generation project.

  10. Critical Classrooms: Using Artists' Lives to Teach Young Students Social Groups, Power, and Privilege

    Science.gov (United States)

    Silva, Janelle M.

    2012-01-01

    This article uses data from a 9-month ethnography in California to illustrate how elementary teacher's decision to reenact Jane Elliott's "A Class Divided" experiment, in conjunction with an artist-centered multicultural curriculum, shifted classroom conversations to a more critical dialogue of social groups, power, and privilege. Data illustrate…

  11. Power Distance and Group Dynamics of an International Project Team: A Case Study

    Science.gov (United States)

    Paulus, Trena M.; Bichelmeyer, Barbara; Malopinsky, Larissa; Pereira, Maura; Rastogi, Polly

    2005-01-01

    Project-based team activities are commonly used in higher education. Teams comprised of members from different national cultures can be faced with unique challenges during the creative process. Hofstede's (1991) cultural dimension of power distance was used to examine one such design team's intra- and inter-group interactions in a graduate-level…

  12. Critical Classrooms: Using Artists' Lives to Teach Young Students Social Groups, Power, and Privilege

    Science.gov (United States)

    Silva, Janelle M.

    2012-01-01

    This article uses data from a 9-month ethnography in California to illustrate how elementary teacher's decision to reenact Jane Elliott's "A Class Divided" experiment, in conjunction with an artist-centered multicultural curriculum, shifted classroom conversations to a more critical dialogue of social groups, power, and privilege. Data…

  13. 76 FR 7836 - PJM Power Providers Group v. PJM Interconnection, L.L.C.; Notice of Complaint

    Science.gov (United States)

    2011-02-11

    ... Energy Regulatory Commission PJM Power Providers Group v. PJM Interconnection, L.L.C.; Notice of Complaint Take notice that on February 1, 2011, pursuant to section 206 of the Federal Power Act, and Rule... 385.206, PJM Power Providers Group (Complainant) filed a formal complaint against PJM...

  14. Linguistic Power Wielding and Manipulation Strategies in Group Conversations Between Turkish-Danish Children

    Directory of Open Access Journals (Sweden)

    Lian Malai Madsen

    2004-01-01

    Full Text Available The study concerns the linguistic power wielding in group conversations among bilingual children and adolescents. In bilingual conversations one of the pragmatic linguistic means of negotiating power relations and identities is of course the choice of language. This is also the main subject of the study of Jørgensen (1993 who presents a view on the linguistic power wielding in group conversation in which he combines code-switching theories with Kjøller’s (1991 concepts of linguistic power wielding. Kjøller claims that schools ought to teach children how to exercise linguistic power. Jørgensen shows that in spite of this the bilingual children do acquire manipulation skills. He also emphasizes the fact that co-operation is not the only principle that rules the conversations. Jørgensen finds that the manipulation strategies, which Kjøller has established, are useful in the study of bilingual conversations from the Køge Project. Inspired by this, this article describes some of the principles behind the manipulation strategies used by the children in my data. The article focuses on the conflicts in the conversations. The study consists of 1 a qualitative analysis of the manipulation strategies and the power-processes in the negotiations, and 2 a quantitative study of the outcome of the conflicts in the conversations. The study, which is described in Madsen (2001, concerns both linguistic and social parameters. The relationships between linguistic variation and social structures are considered. As a starting point linguistic variation is seen as a means of negotiating power relationships and identities. The linguistic choices bring about social relations in the conversation. The results, however, suggest that linguistic behavior in the conversation to some extent depends on brought-along social factors (Rampton 1995.

  15. APPROACHING THE DISCRIMINATORY WORK ENVIRONMENT AS STRESSOR: THE PROTECTIVE ROLE OF JOB SATISFACTION ON HEALTH

    Directory of Open Access Journals (Sweden)

    Donatella Di Marco

    2016-08-01

    Full Text Available Discrimination is a complex phenomenon with adverse consequences at personal and organisational levels. Past studies have demonstrated that workers who are victims of discrimination might show less job satisfaction, less organisational commitment and worse levels of health and productivity. Although most research has focused on the effects of discrimination on victims, less is known about the extent to which discrimination produces consequences on workers who perceive the existence of a discriminatory work environment. The goal of this article is to analyse the consequences of the perception of a discriminatory work environment on employees’ health. The importance of this relationship is studied taking into account the mediating effect of job satisfaction. In order to reach this goal a cross-sectional study was carried out with a sample of 1633 Italian workers (male= 826, female= 764, employed in private and public sectors, and in different hierarchical positions. Results suggest that the perception of a discriminatory work environment is negatively associated with employees’ health. This relationship is partially mediated by job satisfaction (R²= .17. This study demonstrates that perceiving a discriminatory work environment might have a negative impact on workers’ health. A higher level of job satisfaction might buffer this effect. These findings have several practical implications. On the one hand, Human Resource Managers need to intervene in order to recognise and diminish implicit biases, creating a healthy and inclusive environment (e.g. through training, diversity policies, etc.. On the other hand, promoting job satisfaction (e.g. providing mechanisms of voice might help workers to preserve their well-being, coping with the negative effects of a discriminatory work environment.Keywords: Discriminatory work environment, Job satisfaction, Employees’ health, Human Resource Management, Italian workers, Workplace, Work-related stress

  16. Auction design for the allocation of carbon emission allowances: uniform or discriminatory price?

    DEFF Research Database (Denmark)

    Cong, Ronggang; wei, yi-ming

    2010-01-01

    Only four states used auction in Phase Ⅰ (2005-2007) of the European Union Emission Trading System, of which four used a uniform-price sealed auction format. Here we discuss whether the auction should adopt a uniform-price or discriminatory-price format using an agent-based carbon allowances auct......) The uniform-price auction is relatively insensitive to market structure. However, a monopoly market is more likely to develop under the discriminatory-price auction format. The results of the model have some policy implications for designing carbon market mechanisms in the future....

  17. The Role of Metaphor in Discriminatory Hegemony: The Use of Metaphor in Reporting of Syrians

    Directory of Open Access Journals (Sweden)

    Hatice ÇOBAN KENEŞ

    2016-12-01

    Full Text Available With the critical approaches in the study of rhetoric as well as critical approaches exhibited in cognitive semantic studies, metaphor has come to be interpreted not only as a means of language, meaning and adornment but also as a way of understanding and describing the World, and as a way of thinking. These studies offer a perspective on how metaphors do and can assume an ideological role in construction and maintenance of hegemonic meanings in the relationship between language, discourse and meaning; and also on how the ideological structure of a discourse can be systematically deciphered using metaphors. Based on the inputs of critical studies, this study aims to problematize the metaphors used to describe asylum seekers, migrants and refugees in newspapers play a role in the construction of discriminatory discourses. Within this scope, this study is based on the analysis of selected news stories regarding the entrance of first large groups of Syrians to Turkey in April 2011; the economic costs of their prolonged stay coupled with the arrival of new refugees especially in 2015; and the death of Ayan Kurdi, a three-year-old toddler who symbolized the ‘death trip’ of refugees on September 2, 2015. Within this framework, the study focuses on the use of metaphors contributing to the production and dissemination of discrimination against refugees through the analysis of news stories in Daily newspapers of Sabah, Posta,Hürriyet, Zaman ve Cumhuriyet,which represent different ideological strains and mind-sets of reporting. In these analyses, the study benefits from the conceptual framework on metaphors developed by Lakoff and Johnson as well as critical discourse analysis method of van Dijk

  18. Heavy-traffic analysis of a multiple-phase network with discriminatory processor sharing

    NARCIS (Netherlands)

    Verloop, I.M.; Ayesta, U.; Núñez-Queija, R.

    2011-01-01

    We analyze a generalization of the discriminatory processor-sharing (DPS) queue in a heavy-traffic setting. Customers present in the system are served simultaneously at rates controlled by a vector of weights. We assume that customers have phase-type distributed service requirements and allow that c

  19. 24 CFR 100.110 - Discriminatory practices in residential real estate-related transactions.

    Science.gov (United States)

    2010-04-01

    ... residential real estate-related transactions. 100.110 Section 100.110 Housing and Urban Development... Discrimination in Residential Real Estate-Related Transactions § 100.110 Discriminatory practices in residential real estate-related transactions. (a) This subpart provides the Department's interpretation of the...

  20. Discriminatory Employment of Asian Americans; Private Industry in the San Francisco-Oakland SMSA.

    Science.gov (United States)

    Cabezas, Amado Y.; Yee, Harold T.

    The study reported on in this document investigates discriminatory employment victimizing Asian Americans in the private sector in the San Francisco, California, Bay Area. The analytical framework utilized is described in detail. Findings are presented in both statistical and discussion form, and are broken down by industry. Disparities in…

  1. Discriminatory Policy among the Undergraduate Students towards Racism and White Privilege in America

    Science.gov (United States)

    Sankar, G.

    2014-01-01

    This paper addresses racism and white privilege in America. Racism is generally discriminatory policy and behavior aimed at oppressing non whites whereas white privilege is the advantage gained by whites that is not due to ability or merit. It is argued that white privilege is largely invisible and that this allows the current unacceptable status…

  2. Auction design for the allocation of carbon emission allowances: uniform or discriminatory price ?

    Directory of Open Access Journals (Sweden)

    Rong-Gang Cong Yi-Ming Wei

    2010-05-01

    Full Text Available Only four states used auction in Phase (2005-2007 of the European Union Emission Trading System, of which four used a uniform-price sealed auction format. Here we discuss whether the auction should adopt a uniform-price or discriminatory-price format using an agent-based carbon allowances auction model established for the purpose. The main conclusions are as follows: (1 when carbon allowances are relatively scarce, the government should use a discriminatory-price auction; when carbon allowances are relatively abundant, the government should use a uniform-price auction. (2 Uncertainty of the generating cost reduces the ability of an auction to know bidders’ private values, which will reduce the government’s revenue and reduce auction efficiency. (3 Compared with the discriminatory-price auction, the uniform-price auction can prevent large bidders from obtaining excessive profits. (4 The uniform-price auction is relatively insensitive to market structure. However, a monopoly market is more likely to develop under the discriminatory-price auction format. The results of the model have some policy implications for designing carbon market mechanisms in the future.

  3. 76 FR 70921 - Implementation of the Fair Housing Act's Discriminatory Effects Standard

    Science.gov (United States)

    2011-11-16

    ... Housing Act complaints, recognizes the discriminatory effects theory of liability and requires HUD... patterns.\\12\\ HUD also joined with the Department of Justice and nine other Federal enforcement agencies to... violation of the may be premised on a theory of disparate impact.''); HUD v. Ross, 1994 WL 326437, at *5...

  4. 78 FR 60368 - Determination Regarding Waiver of Discriminatory Purchasing Requirements With Respect to Goods...

    Science.gov (United States)

    2013-10-01

    ... and services. In accordance with section 301(b)(1) of the Trade Agreements Act, the European Union is... Discriminatory Purchasing Requirements under the Trade Agreements Act of 1979. DATES: Effective Date: September... European Union (``EU'') is a party to the World Trade Organization (``WTO'') Agreement on...

  5. Outcome Assessments in Children with Cerebral Palsy, Part II: Discriminatory Ability of Outcome Tools

    Science.gov (United States)

    Bagley, Anita M; Gorton, George; Oeffinger, Donna; Barnes, Douglas; Calmes, Janine; Nicholson, Diane; Damiano, Diane; Abel, Mark; Kryscio, Richard; Rogers, Sarah; Tylkowski, Chester

    2007-01-01

    Discriminatory ability of several pediatric outcome tools was assessed relative to Gross Motor Function Classification System (GMFCS) level in patients with cerebral palsy. Five hundred and sixty-two patients (400 with diplegia, 162 with hemiplegia; 339 males, 223 females; age range 4-18y, mean 11y 1mo [SD 3y 7mo]), classified as GMFCS Levels I to…

  6. Meat quality of veal: Discriminatory ability of weaning status

    Directory of Open Access Journals (Sweden)

    M. Pateiro

    2013-11-01

    Full Text Available The physicochemical and fatty acid compositions of meat from 81 calves were measured in order to prove whether the extension of suckling period could distinguish “Normal” from “Suprema” class calves. Three groups of animals were investigated depending on their weaning status: NW (animals were milk-fed until seven months, W1 and W2 (animals which were weaned at different ages and reared either in family farms or in feedlot, respectively. There was no difference among animals in relation to the main components (moisture, protein and ash. Significant differences (p<0.05 were found regarding intramuscular fat; the contents were higher in animals weaned at early ages. Color and texture parameters were significantly affected by weaning status. The intramuscular fatty acid composition in the three types of animals showed that saturated fatty acids were the predominant ones in the three groups with values ranging between 48.71% and 49.52% of total methyl esters. Significant differences (p<0.001 were found depending on weaning status in linolenic acid and in the n-6/n-3 ratio, obtaining the highest values in NW animals. Factor analysis method using principal component was applied to the data. The data matrix constructed was subjected to a canonical discriminant analysis in order to classify the NW, W1 and W2 groups. These results showed that 96.6% for the NW group, and 66.7% and 82.4% for W1 and W2 groups respectively, were correctly classified.

  7. Interagency Advanced Power Group (IAPG) meeting compendium. October 1991--December 1992

    Energy Technology Data Exchange (ETDEWEB)

    1993-01-01

    Under the direction of the Interagency Advanced Power Group (IAPG), the Power Information Center (PIC) provides support services for each IAPG information exchange session. IAPG members meet a minimum of once each year to share programmatic and technical information on federally funded research and development (R&D) projects in the area of advanced power. This R&D is directed by one of the five IAPG member agencies-the US Army, US Navy, US Air Force, US Department of Energy, and the National Aeronautics and Space Administration. Affiliated Federal groups and federally funded research and development centers can also participate. To enhance the exchange of information between Government researchers, this 1992 IAPG Meeting Compendium has been assembled. This publication is a re-printing of abstracts of each IAPG presentation offered during 1991-1992. The information is arranged chronologically by IAPG meeting. During the 1992 IAPG meeting year, there were presentations restricted to Government audiences only. These ``Restricted`` minutes have not been included in this compilation.

  8. 76 FR 39870 - PJM Interconnection, LLC; PJM Power Providers Group v. PJM Interconnection, LLC; Notice of Date...

    Science.gov (United States)

    2011-07-07

    ... Energy Regulatory Commission PJM Interconnection, LLC; PJM Power Providers Group v. PJM Interconnection... presents an opportunity to exercise buyer market power; (2) whether the Fixed Resource Requirement (FRR... FRR option that allow parties to self-supply while deterring buyer market power. Parties will have...

  9. Approaching the Discriminatory Work Environment as Stressor: The Protective Role of Job Satisfaction on Health

    Science.gov (United States)

    Di Marco, Donatella; López-Cabrera, Rocio; Arenas, Alicia; Giorgi, Gabriele; Arcangeli, Giulio; Mucci, Nicola

    2016-01-01

    Discrimination is a complex phenomenon with adverse consequences at personal and organizational levels. Past studies have demonstrated that workers who are victims of discrimination might show less job satisfaction, less organizational commitment and worse levels of health and productivity. Although most research has focused on the effects of discrimination on victims, less is known about the extent to which discrimination produces consequences on workers who perceive the existence of a discriminatory work environment. The goal of this article is to analyze the consequences of the perception of a discriminatory work environment on employees’ health. The importance of this relationship is studied taking into account the mediating effect of job satisfaction. In order to reach this goal a cross-sectional study was carried out with a sample of 1633 Italian workers (male = 826, female = 764), employed in private and public sectors, and in different hierarchical positions. Results suggest that the perception of a discriminatory work environment is negatively associated with employees’ health. This relationship is partially mediated by job satisfaction (R2 = 0.17). This study demonstrates that perceiving a discriminatory work environment might have a negative impact on workers’ health. A higher level of job satisfaction might buffer this effect. These findings have several practical implications. On the one hand, Human Resource Managers need to intervene in order to recognize and diminish implicit biases, creating a healthy and inclusive environment (e.g., through training, diversity policies, etc.). On the other hand, promoting job satisfaction (e.g., providing mechanisms of voice) might help workers to preserve their well-being, coping with the negative effects of a discriminatory work environment. PMID:27625625

  10. Approaching the Discriminatory Work Environment as Stressor: The Protective Role of Job Satisfaction on Health.

    Science.gov (United States)

    Di Marco, Donatella; López-Cabrera, Rocio; Arenas, Alicia; Giorgi, Gabriele; Arcangeli, Giulio; Mucci, Nicola

    2016-01-01

    Discrimination is a complex phenomenon with adverse consequences at personal and organizational levels. Past studies have demonstrated that workers who are victims of discrimination might show less job satisfaction, less organizational commitment and worse levels of health and productivity. Although most research has focused on the effects of discrimination on victims, less is known about the extent to which discrimination produces consequences on workers who perceive the existence of a discriminatory work environment. The goal of this article is to analyze the consequences of the perception of a discriminatory work environment on employees' health. The importance of this relationship is studied taking into account the mediating effect of job satisfaction. In order to reach this goal a cross-sectional study was carried out with a sample of 1633 Italian workers (male = 826, female = 764), employed in private and public sectors, and in different hierarchical positions. Results suggest that the perception of a discriminatory work environment is negatively associated with employees' health. This relationship is partially mediated by job satisfaction (R (2) = 0.17). This study demonstrates that perceiving a discriminatory work environment might have a negative impact on workers' health. A higher level of job satisfaction might buffer this effect. These findings have several practical implications. On the one hand, Human Resource Managers need to intervene in order to recognize and diminish implicit biases, creating a healthy and inclusive environment (e.g., through training, diversity policies, etc.). On the other hand, promoting job satisfaction (e.g., providing mechanisms of voice) might help workers to preserve their well-being, coping with the negative effects of a discriminatory work environment.

  11. Finite groups having at most 27 non-normal proper subgroups of non-prime-power order

    DEFF Research Database (Denmark)

    Shi, Jiangtao; Zhang, Cui

    2014-01-01

    We prove that any finite group having at most 27 non-normal proper subgroups of non-prime-power order is solvable except for G≅ A5, the alternating group of degree 5.......We prove that any finite group having at most 27 non-normal proper subgroups of non-prime-power order is solvable except for G≅ A5, the alternating group of degree 5....

  12. A 3-5 GHz CMOS UWB power amplifier with {+-}8 ps group delay ripple

    Energy Technology Data Exchange (ETDEWEB)

    Xi Tianzuo; Huang Lu; Zheng Zhong; Feng Lisong, E-mail: xitianzuo@hotmail.co [Department of Electronic Science and Technology, University of Science and Technology of China, Hefei 230027 (China)

    2010-04-15

    A differential power amplifier (PA), designed using the linear-phase filter model, for a BPSK modulated ultra-wideband (UWB) system operating in the 3-5 GHz frequency range is presented. The proposed PA was fabricated using 0.18 {mu}m SMIC CMOS technology. To achieve sufficient linearity and efficiency, this PA operates in the class-AB region, delivering an output power of 8.5 dBm at an input-1 dB compression point of -0.5 dBm. It consumes 28.8 mW, realizing a flat gain of 9.11 {+-} 0.39 dB and a very low group delay ripple of {+-}8 ps across the whole band of operation. (semiconductor integrated circuits)

  13. 76 FR 22729 - Chrysler Group, LLC, Power Train Division, Mack Avenue Engine Plant #1, Including On-Site Leased...

    Science.gov (United States)

    2011-04-22

    ... Employment and Training Administration Chrysler Group, LLC, Power Train Division, Mack Avenue Engine Plant 1... to Apply for Worker Adjustment Assistance on April 6, 2011, applicable to workers of Chrysler Group, LLC, Power Train Division, Mack Avenue Engine Plant 1, including on-site leased workers of...

  14. 75 FR 65046 - In the Matter of Cape Systems Group, Inc., Caribbean Cigar Company, Casual Male Corp., Cell Power...

    Science.gov (United States)

    2010-10-21

    ... COMMISSION In the Matter of Cape Systems Group, Inc., Caribbean Cigar Company, Casual Male Corp., Cell Power... lack of current and accurate information concerning the securities of Cape Systems Group, Inc. because... there is a lack of current and accurate information concerning the securities of Cell Power...

  15. Multi-group pin power reconstruction method based on colorset form functions

    Institute of Scientific and Technical Information of China (English)

    HUANG Hao

    2009-01-01

    A multi-group pin power reconstruction method that fully exploits nodal information obtained from global coarse mesh solution has been developed.It expands the intra-nodal flux distributions into nonseparable semi-analytic basis functions,and a colorset based form function generating method is proposed,which can accurately model the spectral interaction occurring at assembly interface.To demonstrate its accuracy and applicability to realistic problems,the new method is tested against two benchmark problems,including a mixed-oxide fuel problem.The results show that the new method is comparable in accuracy to fine-mesh methods.

  16. Ericksonian hypnosis in chronic care support groups: a Rogerian exploration of power and self-defined health-promoting goals.

    Science.gov (United States)

    Larkin, Dorothy M

    2007-10-01

    This Rogerian study examined how traditional and Ericksonian hypnotherapeutic support groups facilitated self-defined health-promoting goals and power as knowing participation in change for 49 participants with chronic physical illness. The participants were randomly assigned to either a traditional support group or an Ericksonian hypnotherapeutic support group. Measurements of power and self-defined health-promoting goals were obtained seven times over a 10-week period. The results indicated that both the traditional support groups and the Ericksonian hypnotherapeutic support groups experienced significantly enhanced power and progressed significantly toward their health-promoting goals. Correlations for the self-defined health-promoting goals and power progressively and significantly increased through time. This study supports Barrett's claim that power relates to health.

  17. Suzanne F. Delbanco on the Leapfrog Group and employer purchasing power. Interview by Pamela K. Scarrow.

    Science.gov (United States)

    Delbanco, Suzanne F

    2004-01-01

    Suzanne F. Delbanco, PhD MPH, is the first executive director of The Leapfrog Group, founded by the Business Roundtable. The Leapfrog Group's goal is to mobilize employer purchasing power to initiate breakthrough improvements in the safety, quality, and overall value of healthcare for American consumers. The group's growing consortium of more than 155 Fortune 500 companies and other large private and public healthcare purchasers provides health benefits to more than 34 million Americans; these companies spend more than 62 billion dollars on healthcare annually. Dr. Delbanco is a member of the National Committee for Quality Assurance Purchaser Advisory Council and a board member of Bridges to Excellence. Before joining The Leapfrog Group, she was a senior manager at the Pacific Business Group on Health (PBGH), where she worked on the quality team. Prior to joining PBGH, she worked on reproductive health policy and the changing healthcare marketplace initiative at the Henry J. Kaiser Family Foundation. She has also consulted on health insurance coverage in the temporary employment industry and on the first statewide survey in California of MediCal beneficiaries, and worked as a community Liaison for Kaiser Permanente during the establishment of one of California's first County Organized Health Systems. She holds a PhD in public policy from the Goldman School of Public PoLicy and a MPH from the School of Public Health at the University of California, Berkeley.

  18. Social network modeling: a powerful tool for the study of group scale phenomena in primates.

    Science.gov (United States)

    Jacobs, Armand; Petit, Odile

    2011-08-01

    Social Network Analysis is now a valuable tool to study social complexity in many animal species, including primates. However, this framework has rarely been used to implement quantitative data on the social structure of a group within computer models. Such approaches allow the investigation of how social organization constrains other traits and also how these traits can impact the social organization in return. In this commentary, we discuss the powerful potential of social network modeling as a way to study group scale phenomena in primates. We describe the advantages of using such a method and we focus on the specificity of this approach in primates, given the particularities of their social networks compared with those of other taxa. We also give practical considerations and a list of examples as for the choice of parameters that can be used to implement the social layer within the models.

  19. Muon groups and primary composition at 10 to the 13th power to 10 to the 15th power eV

    Science.gov (United States)

    Budko, E. V.; Chudakov, A. E.; Dogujaev, V. A.; Mihelev, A. R.; Padey, V. A.; Petkov, V. A.; Striganov, P. S.; Suvorova, O. V.; Voevodsky, A. V.

    1985-01-01

    The data on muon groups observed at Baksan underground scintillation telescope is analyzed. In this analysis we compare the experimental data with calulations, based on a superposition model in order to obtain the effective atomic number of primary cosmic rays in the energy range 10 to the 13th power to 10 to the 15th power eV.

  20. The essential tension between leadership and power: when leaders sacrifice group goals for the sake of self-interest.

    Science.gov (United States)

    Maner, Jon K; Mead, Nicole L

    2010-09-01

    Throughout human history, leaders have been responsible for helping groups attain important goals. Ideally, leaders use their power to steer groups toward desired outcomes. However, leaders can also use their power in the service of self-interest rather than effective leadership. Five experiments identified factors within both the person and the social context that determine whether leaders wield their power to promote group goals versus self-interest. In most cases, leaders behaved in a manner consistent with group goals. However, when their power was tenuous due to instability within the hierarchy, leaders high (but not low) in dominance motivation prioritized their own power over group goals: They withheld valuable information from the group, excluded a highly skilled group member, and prevented a proficient group member from having any influence over a group task. These self-interested actions were eliminated when the group was competing against a rival outgroup. Findings provide important insight into factors that influence the way leaders navigate the essential tension between leadership and power.

  1. Increasing the Discriminatory Power of DEA Using Shannon’s Entropy

    Directory of Open Access Journals (Sweden)

    Qiwei Xie

    2014-03-01

    Full Text Available In many data envelopment analysis (DEA applications, the analyst always confronts the difficulty that the selected data set is not suitable to apply traditional DEA models for their poor discrimination. This paper presents an approach using Shannon’s entropy to improve the discrimination of traditional DEA models. In this approach, DEA efficiencies are first calculated for all possible variable subsets and analyzed using Shannon’s entropy theory to calculate the degree of the importance of each subset in the performance measurement, then we combine the obtained efficiencies and the degrees of importance to generate a comprehensive efficiency score (CES, which can observably improve the discrimination of traditional DEA models. Finally, the proposed approach has been applied to some data sets from the prior DEA literature.

  2. Survey of Forensic Document Examination Habit Areas: Degree of Use and Discriminatory Power

    Energy Technology Data Exchange (ETDEWEB)

    G Sperry; PA Manzolillo; RC Hanlan; RJ Muehlberger

    1999-09-07

    Beginning in 1998, the Pacific Northwest National Laboratory (PNL), US Postal Inspection Service Forensic Laboratory (USPIS), and the Data Fusion Laboratory, Drexel University (DFL) have been collaborating on a large scale research project ''Handwriting Individuality--Moving From Art to Science''. In April 1998 a survey was distributed to the community of forensic document examiners (FDEs) requesting input on the habit areas used and their utility in distinguishing handwriting. The information obtained from this survey was intended to provide the data necessary to select the criteria and begin the evaluation of the handwriting samples currently in the project. Preliminary results of the survey were made available to the community at the American Society of Questioned Document Examiners (ASQDE) meeting in August 1998 and the American Academy of Forensic Sciences (AAFS) meeting in February 1999. This report provides final documentation of the survey and its results. This survey has two objectives: (1) to compile a list of handwriting features and characteristics used by professional forensic document examiners in the examination and comparison of handwriting and (2) to gather information about the significance of these features and characteristics. These objectives are met by having the FDEs provide an indication of their experience in the frequency of habit area evaluation and the utility of the habit area for discrimination.

  3. Public perceptions about HIV/AIDS and discriminatory attitudes toward people living with acquired immunodeficiency syndrome in Iran.

    Science.gov (United States)

    Masoudnia, Ebrahim

    2015-01-01

    Negative and discriminatory attitudes towards people living with HIV/AIDS (PLWHA) are one of the biggest experienced challenges by people suffering from HIV, and these attitudes have been regarded as a serious threat to the fundamental rights of all infected people who are affected or associated with this disease in Iran. This study aimed to determine the relationship between public perception about HIV/AIDS and discriminatory attitudes toward PLWHA . The present study was conducted using a descriptive and survey design. Data were collected from 450 patients (236 male and 214 female) in Tehran and Yazd cities. The research instruments were modified HIV-related knowledge/attitude and perception questions about PLWHA, and discriminatory attitudes toward PLWHA. The results showed that prevalence of discriminatory attitudes toward PLWHA in the studied population was 60.0%. There was a significant negative correlation between citizens' awareness about HIV/AIDS, HIV-related attitudes, negative perception toward people with HIV/AIDS symptoms and their discriminatory attitudes toward PLWHA (p AIDS explained for 23.7% of the variance of discriminatory attitudes toward PLWHA. Negative public perceptions about HIV/AIDS in Iran associated with discriminatory attitudes toward PLWHA and cultural beliefs in Iran tend to stigmatize and discriminate against the LWHA.

  4. The Power and Promise of Group Work: Consumer Evaluation of Group Work Services in Gauteng, South Africa

    Science.gov (United States)

    Rasool, Shahana; Ross, Eleanor

    2017-01-01

    Purpose: In light of the limited research into consumers' experiences of group work services in South Africa, the study evaluated groups offered by a range of social service agencies in Gauteng to determine whether group interventions were perceived by users as developmental and empowering. Methods: Program evaluation was employed to evaluate 47…

  5. Mandatory requirement of social health service in Peru: discriminatory and unconstitutional

    OpenAIRE

    Mayta-Tristán, Percy; Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas. Lima, Perú.; Poterico, Julio A.; Puesto de salud Santa Cruz de Ratacocha, Ministerio de Salud, Huánuco, Perú.; Galán-Rodas, Edén; Escuela de Medicina y Cirugía, Universidad Hispanoamericana, San José, Costa Rica.; Raa-Ortiz, Daniel; Estudio Trujillo Amorós, Lima, Perú. Facultad de Derecho, Universidad del Rosario, Rosario, Argentina.

    2014-01-01

    The rural and urban-edge health service (SERUMS) is an activity that only health professionals perform for the Peruvian government, as it is a mandatory requirement to qualify for a second specialty or to work in public hospitals and public health care facilities, and obtain government scholarships for future training. The few legal changes in the rules of this social program and the focus of “service” restricted to health professionals lead to a perception of this policy as discriminatory an...

  6. 77 FR 11169 - In the Matter of Exelon Corporation; Constellation Energy Group, Inc.; R.E. Ginna Nuclear Power...

    Science.gov (United States)

    2012-02-24

    ... License] In the Matter of Exelon Corporation; Constellation Energy Group, Inc.; R.E. Ginna Nuclear Power... (Exelon), and Exelon Ventures Company, LLC (Exelon Ventures), and Constellation Energy Nuclear Group, LLC... Advisory Committee of Constellation Energy Nuclear Group, LLC, shall prepare an Annual Report regarding the...

  7. The Power of Affirming Group Values: Group Affirmation Buffers the Self-Esteem of Women Exposed to Blatant Sexism.

    Science.gov (United States)

    Spencer-Rodgers, Julie; Major, Brenda; Forster, Daniel; Peng, Kaiping

    2016-01-01

    Extending the group affirmation literature to the domain of prejudice, this study investigated whether group affirmation buffers the self-esteem of women exposed to blatant sexism. In accordance with Self-Affirmation Theory (Steele, 1988) and group affirmation research (Sherman et al., 2007), we hypothesized that when one aspect of the collective self is threatened (gender identity), self-esteem can be maintained via the affirmation of an alternative aspect of the collective self. In a 2×2 between-participants design, female students were randomly assigned to read about discrimination directed toward women or a non-self-relevant disadvantaged group (the Inuit). All then participated in a (fictitious) second study, in which half completed a group affirmation manipulation (wrote about the top three values of a self-defining group) and half completed a control writing exercise. The self-esteem of women who were threatened by sexism, but group affirmed, was protected from the negative effects of perceiving sexism.

  8. The Power of Affirming Group Values: Group Affirmation Buffers the Self-Esteem of Women Exposed to Blatant Sexism

    Science.gov (United States)

    Spencer-Rodgers, Julie; Major, Brenda; Forster, Daniel; Peng, Kaiping

    2016-01-01

    Extending the group affirmation literature to the domain of prejudice, this study investigated whether group affirmation buffers the self-esteem of women exposed to blatant sexism. In accordance with Self-Affirmation Theory (Steele, 1988) and group affirmation research (Sherman et al., 2007), we hypothesized that when one aspect of the collective self is threatened (gender identity), self-esteem can be maintained via the affirmation of an alternative aspect of the collective self. In a 2×2 between-participants design, female students were randomly assigned to read about discrimination directed toward women or a non-self-relevant disadvantaged group (the Inuit). All then participated in a (fictitious) second study, in which half completed a group affirmation manipulation (wrote about the top three values of a self-defining group) and half completed a control writing exercise. The self-esteem of women who were threatened by sexism, but group affirmed, was protected from the negative effects of perceiving sexism. PMID:27867318

  9. Power Relationships, Interactional Dominance and Manipulation Strategies in Group Conversations of Turkish-Danish Children.

    Science.gov (United States)

    Madsen, Lian Malai

    2003-01-01

    Focuses on interactional dominance and power wielding in bilingual conversation among school children. Finds that different pragmatic strategies are used by bilingual children as a means of negotiating power relationships and identities, but that the social relations and the power bases brought into the conversations by interactants make the…

  10. Ordering Power of Separate versus Grouped True-False Tests: Interaction of Type of Test with Knowledge Levels of Examinees.

    Science.gov (United States)

    Hsu, Louis M.

    1979-01-01

    A comparison of the relative ordering power of separate and grouped-items true-false tests indicated that neither type of test was uniformly superior to the other across all levels of knowledge of examinees. Grouped-item tests were found superior for examinees with low levels of knowledge. (Author/CTM)

  11. The Effectiveness Of High Levels Of Knowledge Regarding Hiv/Aids In Reducing Discriminatory Attitudes And Behaviour Towards Hiv-Infected People

    Directory of Open Access Journals (Sweden)

    M. Pirie

    2006-11-01

    Full Text Available The primary objective of this study was to assess whether there is a relationship between increasing levels of knowledge about HIV/AIDS and perceptions of discriminatory attitudes and behaviour towards people with HIV/AIDS. Employees (3662 from a large accounting firm were exposed to a survey and a response rate of 41% or 1532 was received. The secondary objective of the study was to determine whether there were any statistically significant differences in the mean difference of knowledge scores of groups created in terms of the different biographical variables. ANOVA’S (to determine the significance of differences between the means, t-tests (two groups only and F-statistics were used for the analysis. Given the large sample size an F-test is not conclusive and the effect of the difference in sample size needs to be taken into account. For this reason it was also necessary to look at the Partial Eta Squared. Results indicate that respondents are generally knowledgeable about the prevention and transmission of HIV/AIDS and that respondents’ level of knowledge correlates negatively with discriminatory practices.

  12. Bisexual Behaviors, HIV Knowledge, and Stigmatizing/Discriminatory Attitudes among Men Who Have Sex with Men.

    Directory of Open Access Journals (Sweden)

    Meizhen Liao

    Full Text Available To assess the correlates for bisexual behaviors, HIV knowledge, and HIV/AIDS-related stigmatizing/discriminatory attitudes among men who have sex with men (MSM.A cross-sectional survey among MSM was conducted in 2011 to provide demographics, sexual behaviors, HIV knowledge, HIV/AIDS-related stigmatizing/discriminatory attitudes, and services in Jinan, Qingdao, and Yantai of Shandong Province of China.Of 1230 participants, 82.8% were single, 85.7% aged <35 years, and 47.2% received college or higher education. There were 28.6% MSM who reported to be married or cohabitating or ever had sex with woman in the past 6 months (P6M. 74.5% had ≥6 HIV-related knowledge score. The average total score of stigmatizing/discriminatory attitude was 37.4±4.4(standard deviation. Bisexual behavior was independently associated with higher levels of HIV/AIDS-related stigma/discrimination(AOR = 1.1, 95% CI:1.0-1.1, older age(AOR = 1.2, 95%CI:1.1-1.2, and lower HIV-related knowledge score(AOR = 1.6, 95%CI:1.2-2.2. HIV knowledge score ≥6 was independently associated with lower levels of HIV/AIDS-related stigma/discrimination(AOR = 1.3, 95%CI:1.2-1.3, less bisexual behaviors(AOR = 0.6, 95%CI:0.5-0.9, ever received a test for HIV in the past 12 months (P12M(AOR = 3.2, 95%CI:2.3-4.5, college or higher level education(AOR = 1.9, 95%CI:1.4-2.6, consistent condom use with men in P6M(AOR=6.9, 95%CI:4.6-10.6, recruited from internet or HIV testing sites(AOR = 11.2, 95%CI:8.0-16.1 and bars, night clubs, or tea houses(AOR = 2.5, 95%CI:1.7-4.8. Expressing higher levels of HIV/AIDS-related stigmatizing/discriminatory attitudes was independently associated with bisexual behaviors(Aβ = 0.9, 95%CI:0.4-1.4, lower HIV-related knowledge score(Aβ = 3.6, 95%CI:3.0-4.1, the number of male sex partners in the past week ≥2(Aβ = 1.4, 95%CI:1.0-1.9, unprotected male anal sex in P6M(Aβ = 1.0, 95%CI:0.5-1.6, and inversely associated with ever received HIV test(Aβ = 1.4, 95%CI:0

  13. Discriminatory public policies and the New York City tuberculosis epidemic, 1975-1993.

    Science.gov (United States)

    Wallace, D N

    2001-05-01

    Discriminatory public policies removed over ten percent of the fire companies in New York City from 1972-1975, mainly from poor communities of color with very old multiple-dwellings. Hundreds of thousands of housing units were destroyed between 1972 and 1978. Patterns of housing overcrowding changed rapidly and social networks were broken. Tuberculosis went into obvious epidemic in 1979. The temporal and geographic dynamics of the TB epidemic is described here as are the lessons for Europe with respect to treatment of marginalized populations.

  14. Working group report on advanced high-voltage high-power and energy-storage space systems

    Science.gov (United States)

    Cohen, H. A.; Cooke, D. L.; Evans, R. W.; Hastings, D.; Jongeward, G.; Laframboise, J. G.; Mahaffey, D.; Mcintyre, B.; Pfizer, K. A.; Purvis, C.

    1986-01-01

    Space systems in the future will probably include high-voltage, high-power energy-storage and -production systems. Two such technologies are high-voltage ac and dc systems and high-power electrodynamic tethers. The working group identified several plasma interaction phenomena that will occur in the operation of these power systems. The working group felt that building an understanding of these critical interaction issues meant that several gaps in our knowledge had to be filled, and that certain aspects of dc power systems have become fairly well understood. Examples of these current collection are in quiescent plasmas and snap over effects. However, high-voltage dc and almost all ac phenomena are, at best, inadequately understood. In addition, there is major uncertainty in the knowledge of coupling between plasmas and large scale current flows in space plasmas. These gaps in the knowledge are addressed.

  15. Optimum fiber tapers for increasing the power in the blue-edge of a supercontinuum - group-acceleration matching

    DEFF Research Database (Denmark)

    Sørensen, Simon Toft; Judge, Alexander; Thomsen, Carsten L.;

    2011-01-01

    and blueshifts an increased fraction of the energy in its DW when the gradient is decreased. This is quantified by the group-acceleration mismatch between the soliton and DW at the entrance of the taper. These findings have direct implications for the achievable power in the blue edge of a supercontinuum...... generated in a tapered fiber and explain observations of a lack of power in the blue edge....

  16. Do More Powerful Interest Groups have a Disproportionate Influence on Policy?

    NARCIS (Netherlands)

    Z. Sharif (Zara); O.H. Swank (Otto)

    2012-01-01

    textabstractDecisions-makers often rely on information supplied by interested parties. In practice, some parties have easier access to information than other parties. In this light, we examine whether more powerful parties have a disproportionate influence on decisions. We show that more powerful pa

  17. Relations between high and low power groups : The importance of legitimacy

    NARCIS (Netherlands)

    Hornsey, MJ; Spears, R; Cremers, M.; Hogg, MA

    2003-01-01

    Using a social identity perspective, two experiments examined the effects of power and the legitimacy of power differentials on intergroup bias. In Experiment 1, 125 math-science students were led to believe that they had high or low representation in a university decision-making body relative to so

  18. Three experimental approaches to measure the social context dependence of prejudice communication and discriminatory behavior.

    Science.gov (United States)

    Beyer, Heiko; Liebe, Ulf

    2015-01-01

    Empirical research on discrimination is faced with crucial problems stemming from the specific character of its object of study. In democratic societies the communication of prejudices and other forms of discriminatory behavior is considered socially undesirable and depends on situational factors such as whether a situation is considered private or whether a discriminatory consensus can be assumed. Regular surveys thus can only offer a blurred picture of the phenomenon. But also survey experiments intended to decrease the social desirability bias (SDB) so far failed in systematically implementing situational variables. This paper introduces three experimental approaches to improve the study of discrimination and other topics of social (un-)desirability. First, we argue in favor of cognitive context framing in surveys in order to operationalize the salience of situational norms. Second, factorial surveys offer a way to take situational contexts and substitute behavior into account. And third, choice experiments - a rather new method in sociology - offer a more valid method of measuring behavioral characteristics compared to simple items in surveys. All three approaches - which may be combined - are easy to implement in large-scale surveys. Results of empirical studies demonstrate the fruitfulness of each of these approaches. Copyright © 2014 Elsevier Inc. All rights reserved.

  19. "Finite Groups with Quasinormal Subgroups of Prime Power Order"一文的一点注记%A NOTE ON THE PAPER "Finite groups with quasinormal subgroups of prince power order"

    Institute of Scientific and Technical Information of China (English)

    朱静萍

    2004-01-01

    用F*(G)代替F(G),将文"Finite Groups with Quasinormal Subgroups of Prime Power Order,Acta Math Hungar 89(4),2000,321-326"一文中的主要定理的可解性的假设去除,从而推广了该文的结论.

  20. Co-Creating a Progressive School: The Power of the Group

    Science.gov (United States)

    Burton, Fred; Collaros, Chris; Eirich, Julie

    2013-01-01

    Drawing on the past and current practices of a group of educators that just celebrated its 40th year as a progressive elementary school in a suburban public school system, the article begins by considering the role that various groups have played in sustaining the school's success for over four decades. These groups include a long-term university…

  1. Co-Creating a Progressive School: The Power of the Group

    Science.gov (United States)

    Burton, Fred; Collaros, Chris; Eirich, Julie

    2013-01-01

    Drawing on the past and current practices of a group of educators that just celebrated its 40th year as a progressive elementary school in a suburban public school system, the article begins by considering the role that various groups have played in sustaining the school's success for over four decades. These groups include a long-term university…

  2. Identification of gas powered motor propulsion group for small unmanned aerial vehicles

    Science.gov (United States)

    Oldziej, Daniel; Walendziuk, Wojciech; Mirek, Karol

    2016-09-01

    The present work aims at the dynamics identification of gas powered motor propulsion applied in remotely piloted aircraft (RPA) of the small or medium class. In subsequent chapters, the criteria indicating the choice of an electric or a gas power system are described. Moreover, the classification and characteristics of gas powered motor propulsions are presented. The main body of the article contains a laboratory stand dedicated to test the fumes from the motor propulsions in order to measure their static and dynamic characteristics. A wireless solution of acquiring the measurement data from the laboratory stand reflecting real working conditions of the repulsion is suggested. In further parts, the dynamics identification is done, and the transfer function of the object is presented.

  3. Measuring cutaneous thermal nociception in group-housed pigs using laser technique - effects of laser power output

    DEFF Research Database (Denmark)

    Herskin, Mette S.; Ladevig, Jan; Arendt-Nielsen, Lars

    2009-01-01

    of the metatarsus were examined using 15 gilts kept in one group and tested in individual feeding stalls after feeding. Increasing the power output led to gradually decreasing latency to respond (P ... are available, especially methodology which is applicable for pigs kept in group-housing without disturbing the daily routines of the animals. To validate a laser-based method to measure thermal nociception in group-housed pigs, we performed two experiments observing the behavioural responses toward cutaneous...... nociceptive stimulation from a computer-controlled CO2-laser beam applied to either the caudal part of the metatarsus on the hind legs or the shoulder region of gilts. In Exp. 1, effects of laser power output (0, 0.5, 1, 1.5 and 2 W) on nociceptive responses toward stimulation on the caudal aspects...

  4. Discriminatory Taxes are Unpopular Even when they are Efficient and Distributionally Fair

    DEFF Research Database (Denmark)

    Sausgruber, Rupert; Tyran, Jean-Robert Karl

    We explore the political acceptance of taxation in commodity markets. Participants in our experiment earn incomes by trading and must collectively choose one of two tax regimes to raise a given tax revenue. A “uniform tax” (UT) imposes the same tax rate on all markets and is fair in that it yields...... the same – but low – income to participants in all markets. The “discriminatory tax” (DT) imposes a higher burden on markets with inelastic demand and is therefore efficient but it is also unfair in that incomes are unequal across markets. We find that DT are unpopular, as predicted. Surprisingly, however......, DT remain unpopular when they are both efficient and produce a fair (equal) distribution. We conclude that non-discrimination (equal treatment) is a salient fairness principle in taxation that shapes voting on commodity taxes above and beyond concerns for efficiency and equal distribution...

  5. [Mandatory requirement of social health service in Peru: discriminatory and unconstitutional].

    Science.gov (United States)

    Mayta-Tristán, Percy; Poterico, Julio A; Galán-Rodas, Edén; Raa-Ortiz, Daniel

    2014-01-01

    The rural and urban-edge health service (SERUMS) is an activity that only health professionals perform for the Peruvian government, as it is a mandatory requirement to qualify for a second specialty or to work in public hospitals and public health care facilities, and obtain government scholarships for future training. The few legal changes in the rules of this social program and the focus of “service” restricted to health professionals lead to a perception of this policy as discriminatory and unconstitutional because it violates the right to education and work. There is no scientific evidence that supports the usefulness and effectiveness of this program in terms of quality of service and health indicator improvement, as well as in adequate distribution and retention of health professionals. We suggest to abolish the compulsory requirement and to reformulate a political strategy to help attract and retain health professionals in vulnerable areas of Peru.

  6. Revisiting the discriminatory accuracy of traditional risk factors in preeclampsia screening

    Science.gov (United States)

    Wagner, Philippe; Perez-Vicente, Raquel; Crispi, Fatima; Merlo, Juan

    2017-01-01

    Background Preeclampsia (PE) is associated with a high risk of perinatal morbidity and mortality. However, there is no consensus in the definition of high-risk women. Aim To question current definition of high PE risk and propose a definition that considers individual heterogeneity to improves risk classification. Methods A stratified analysis by parity was conducted using the Swedish Birth Register between 2002–2010 including 626.600 pregnancies. The discriminatory accuracy (DA) of traditional definitions of high-risk women was compared with a new definition based on 1) specific combinations of individual variables and 2) a centile cut-off of the probability of PE predicted by a multiple logistic regression model. Results None of the classical risk-factors alone reached an acceptable DA. In multiparous, any combination of a risk-factor with previous PE or HBP reached a +LR>10. The combination of obesity and multiple pregnancy reached a good DA particularly in the presence of previous preeclampsia (positive likelihood ratio (LR+) = 26.5 or chronic hypertension (HBP) LR+ = 40.5. In primiparous, a LR+>15 was observed in multiple pregnancies with the simultaneous presence of obesity and diabetes mellitus or with HBP. Predicted probabilities above 97 centile in multiparous and 99 centile in primiparous provided high (LR+ = 12.5), and moderate (LR+ = 5.85), respectively. No one risk factor alone or in combination provided a LR- sufficiently low to rule-out the disease. Conclusions In preeclampsia prediction the combination of specific risk factors provided a better discriminatory accuracy than traditional single risk approach. Our results contribute to a more personalized risk estimation of preeclampsia. PMID:28542517

  7. Power

    DEFF Research Database (Denmark)

    Elmholdt, Claus Westergård; Fogsgaard, Morten

    2016-01-01

    In this chapter, we will explore the dynamics of power in processes of creativity, and show its paradoxical nature as both a bridge and a barrier to creativity in organisations. Recent social psychological experimental research (Slighte, de Dreu & Nijstad, 2011) on the relation between power...... and creativity suggests that when managers give people the opportunity to gain power and explicate that there is reason to be more creative, people will show a boost in creative behaviour. Moreover, this process works best in unstable power hierarchies, which implies that power is treated as a negotiable...... and floating source for empowering people in the organisation. We will explore and discuss here the potentials, challenges and pitfalls of power in relation to creativity in the life of organisations today. The aim is to demonstrate that power struggles may be utilised as constructive sources of creativity...

  8. Interagency Advanced Power Group Solar Photovoltaic Panel Fall meeting minutes, October 22, 1992

    Energy Technology Data Exchange (ETDEWEB)

    1992-12-31

    This report contains discussions on the following topics: Leaf, TPL, and {sup 60}Co Gamma source testing facilities; in-house photovolatic research effort; US Army`s interest developing small thermophotovoatic power source for a variety of missions; charging lead acid batteries with unregulated photovolatic panels; testing of solar array panels for space applications; polycrystalline CuInSe{sub 2} & CdTe PV solar cells and, current activities in the US photovolatic program.

  9. Baikuang Group Invests 5 Billion in Developing An Integrated Coal-power-aluminum Project

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

    <正>Baise Baikuang Group Co.,Ltd.was formally established on September 24.The group is a municipal state-owned enterprise in Baise,formerly known as Guangxi Baise Mining Bureau Co.,Ltd.The Group,with 20 whollyowned and holding enterprises and a total asset of RMB 6 billion,is a major lignite production base in Guangxi,an important manganese carbonate base in China and a benchmark small and medium sized coal mine in China.It’s said

  10. Reconstruction of halo power spectrum from redshift-space galaxy distribution: cylinder-grouping method and halo exclusion effect

    CERN Document Server

    Okumura, Teppei; More, Surhud; Masaki, Shogo

    2016-01-01

    The peculiar velocity field measured by redshift-space distortions (RSD) in galaxy surveys provides a unique probe of the growth of large-scale structure. However, systematic effects arise when including satellite galaxies in the clustering analysis. Since satellite galaxies tend to reside in massive halos with a greater halo bias, the inclusion boosts the clustering power. In addition, virial motions of the satellite galaxies cause a significant suppression of the clustering power due to nonlinear RSD effects. We develop a novel method to recover the redshift-space power spectrum of halos from the observed galaxy distribution by minimizing the contamination of satellite galaxies. The cylinder grouping method (CGM) we study effectively excludes satellite galaxies from a galaxy sample. However, we find that this technique produces apparent anisotropies in the reconstructed halo distribution over all the scales which mimic RSD. On small scales, the apparent anisotropic clustering is caused by exclusion of halos...

  11. Prospective genotyping of hospital-acquired methicillin-resistant Staphylococcus aureus isolates by use of a novel, highly discriminatory binary typing system.

    Science.gov (United States)

    O'Sullivan, Matthew V N; Zhou, Fei; Sintchenko, Vitali; Gilbert, Gwendolyn L

    2012-11-01

    In settings of high methicillin-resistant Staphylococcus aureus (MRSA) prevalence, detection of nosocomial transmission events can be difficult without strain typing. Prospective typing of all MRSA isolates could potentially identify transmission in a timely fashion, making infection control responses to outbreaks more effective. We describe the development and evaluation of a novel 19-target binary typing system for MRSA using the multiplex-PCR/reverse line blot hybridization platform. Pulse-field gel electrophoresis (PFGE), spa typing, and phage-derived open reading frame (PDORF) typing were performed for comparison. The system was utilized to identify transmission events in three general surgical wards over a 12-month period. Initial MRSA isolates from 273 patients were differentiated into 55 unique binary types. One or more potential contacts colonized with the same MRSA strain were identified in 69 of 87 cases (79%) in which definite or possible nosocomial MRSA acquisition had occurred. The discriminatory power of the typing system was similar to that of PFGE (Simpson's index of diversity [D] = 0.994, versus 0.987) and higher than that of spa typing (D = 0.926). Strain typing reduced the total number of potential MRSA-colonized source contacts from 859 to 212 and revealed temporal clustering of transmission events. Prospective MRSA typing using this novel binary typing method can rapidly identify nosocomial transmission events, even in high-prevalence settings, which allows timely infection control interventions. The system is rapid, inexpensive, discriminatory, and suitable for routine, high-throughput use in the hospital microbiology laboratory.

  12. Using Classroom Assessment and Cognitive Scaffolding to Enhance the Power of Small-Group Learning

    Science.gov (United States)

    Cooper, James L.; Robinson, Pamela

    2014-01-01

    The authors describe several types of classroom assessment techniques (CATs) and cognitive scaffolding procedures that they have developed over the years. They then bring the procedures together in a sample lecture/group learning class presentation.

  13. Using Classroom Assessment and Cognitive Scaffolding to Enhance the Power of Small-Group Learning

    Science.gov (United States)

    Cooper, James L.; Robinson, Pamela

    2014-01-01

    The authors describe several types of classroom assessment techniques (CATs) and cognitive scaffolding procedures that they have developed over the years. They then bring the procedures together in a sample lecture/group learning class presentation.

  14. Heavy-traffic analysis of the M/PH/1 discriminatory processor sharing queue with phase-dependent weights

    NARCIS (Netherlands)

    Verloop, I.M.; Ayesta, U.; Núñez-Queija, R.

    2009-01-01

    We analyze a generalization of the Discriminatory Processor Sharing (DPS)queue in a heavy-traffic setting. Customers present in the system are served simultaneously at rates controlled by a vector of weights. We assume phase-type distributed service requirements and allow that customers have differe

  15. Behavioral Intention and Behavior toward the Obese on a College Campus: An Exploratory Analysis of Discriminatory Behavior

    Science.gov (United States)

    Irwin, Carol; Symons, Cynthia W.; Kerr, Dianne L.

    2009-01-01

    Background: Discriminatory behavior toward the obese is ubiquitous, which can lead to psychological conditions that exacerbate physical repercussions. Purpose: Using the Theory of Planned Behavior (TPB), this study examined the link between college students' behavioral intention and self-reported behavior toward the obese. Possible connections…

  16. SOLUTION OF THE RAYLEIGH PROBLEM FOR A POWER-LAW NON-NEWTONIAN CONDUCTING FLUID VIA GROUP METHOD

    Institute of Scientific and Technical Information of China (English)

    Mina B.Abd-el-Malek; Nagwa A.Badran; Hossam S.Hassan

    2002-01-01

    An investigation is made of the magnetic Rayleigh problem where a semi-infinite plate is given an impulsive motion and thereafter moves with constant velocity in a nonNewtonian power law fluid of infinite extent. The solution of this highly non-linear problem is obtained by means of the transformation group theoretic approach. The one-parameter group transformation reduces the number of independent variables by one and the governing partial differential equation with the boundary conditions reduce to an ordinary differential equation with the appropriate boundary conditions. Effect of the some parameters on the velocity u ( y, t) has been studied and the results are plotted.

  17. 电力企业班组管理%Group Management of Electric Power Enterprise

    Institute of Scientific and Technical Information of China (English)

    张拥刚; 张娜; 程魁杰; 冯越; 宋倩倩

    2012-01-01

    Group is the most basic unit which employees engaged in the production of enterprises,like the cell of the enterprise,every tasks of enterprise are fulfilled through the group.Most of enterprise employees work in the team,vast majority of machinery and equipments are used by the group,group is the forward position of effectively controlling the accident.Therefore,grasping the safety management must from group.%班组是企业的细胞,是企业组织职工从事生产劳动的最基本的单位,企业的各项工作任务都要通过班组来落实。企业绝大多数职工在班组,绝大多数机械、设备归班组使用和维护,班组是有效控制事故的前沿阵地。因此,抓安全管理,必须从班组抓起。

  18. Standards for components in concentrating solar thermal power plants - status of the Spanish working group

    Science.gov (United States)

    Sallaberry, Fabienne; Bello, Azucena; Burgaleta, Juan Ignacio; Fernandez-García, Aránzazu; Fernandez-Reche, Jesus; Gomez, Juan Antonio; Herrero, Saioa; Lüpfert, Eckhard; Morillo, Rafael; Vicente, Gema San; Sanchez, Marcelino; Santamaria, Patricia; Ubach, Josep; Terradillos, Jesus; Valenzuela, Loreto

    2016-05-01

    Today Spain is still the worldwide leader in the use of Concentrating Solar Power (CSP) technology with more than 2300 MW installed solar thermal power rated in 2015, compared to the 4600 MW installed worldwide. In order to improve the quality of current plants and require the best quality for future plants, the subcommittee SC 117 "Thermoelectric Solar Energy Systems", which is part of the committee AEN/CTN 206 for electricity production, works on different aspects of the plants since 2010. This paper gives an overview of the state of the publications in draft to qualify the performance and the durability of the main components of the solar field (receiver tubes, solar tracking systems, reflectors, heat transfer fluids, collectors and specific sensors). A summary of the main tests set for each component in the future Spanish standards is presented. The first complete standard drafts will be ready by the end of the current year 2015 and most are expected to be published within the following years.

  19. Comparison of the Anaerobic Power of Brazilian Professional Football Players Grouped by Tactical Position

    Directory of Open Access Journals (Sweden)

    Renan Renato Cruz dos Santos

    2014-09-01

    Full Text Available The purpose of this study was to describe anthropometric characteristics and body composition of elite handball and basketball players as well as to make comparisons between them. Fifty-nine males were enrolled in the study, divided into three groups: fifteen handball players, fourteen basketball players and thirty healthy sedentary subjects. The descriptive statistics were expressed as a mean (SD for each variable, while the ANOVA and LSD Post Hoc tests were carried out to detect the effects of each type of sport. The results showed there was no significant difference in body mass index among the groups, while a significant difference was found for body height and body weight as well as for all three of the body contents measured (muscle, bone and fat among the groups. These findings may give coaches from the region better working knowledge and suggest to them to follow recent selection process methods and to be more careful during the recruitment.

  20. Making the Connection: Interweaving Multicultural Creative Arts through the Power of Group Counseling Interventions

    Science.gov (United States)

    Molina, Bogusia; Monteiro-Leitner, Julieta; Garrett, Michael T.; Gladding, Samuel T.

    2005-01-01

    Creativity and the creative arts are important to the portrayal of human experiences through a myriad of forms, including visual, auditory, kinesthetic, and written expression. While these forms of creative expression vary within and across cultural groups, a unifying element embedded in creative works seems to prevail through a continuous search…

  1. Making the Connection: Interweaving Multicultural Creative Arts through the Power of Group Counseling Interventions

    Science.gov (United States)

    Molina, Bogusia; Monteiro-Leitner, Julieta; Garrett, Michael T.; Gladding, Samuel T.

    2005-01-01

    Creativity and the creative arts are important to the portrayal of human experiences through a myriad of forms, including visual, auditory, kinesthetic, and written expression. While these forms of creative expression vary within and across cultural groups, a unifying element embedded in creative works seems to prevail through a continuous search…

  2. Power law classification scheme of time series correlations. On the example of G20 group

    Science.gov (United States)

    Miśkiewicz, Janusz

    2013-05-01

    A power law classification scheme (PLCS) of time series correlations is proposed. It is shown that PLCS provides the ability to classify nonlinear correlations and measure their stability. PLCS has been applied to gross domestic product (GDP) per capita of G20 members and their correlations analysed. It has been shown that the method does not only recognise linear correlations properly, but also allows to point out converging time series as well as to distinguish nonlinear correlations. PLCS is capable of crash recognition as it is shown in the Argentina example. Finally the strength of correlations and the stability of correlation matrices have been used to construct a minimum spanning tree (MST). The results were compared with those based on the ultrametric distance (UD). Comparing the structures of MST, UD and PLCS indicates that the latter one is more complicated, but better fits the expected economic relations within the G20.

  3. The Power of Strong Fourier Sampling: Quantum Algorithms for Affine Groups and Hidden Shifts

    CERN Document Server

    Moore, Cristopher; Russell, A; Schulman, L J; Moore, Cristopher; Rockmore, Daniel; Russell, Alexander; Schulman, Leonard J.

    2005-01-01

    Many quantum algorithms, including Shor's celebrated factoring and discrete log algorithms, proceed by reduction to a Hidden Subgroup problem, in which an unknown subgroup H of a group G must be determined from a uniform superposition on a left coset of H. These hidden subgroup problems are typically solved by Fourier sampling. When G is nonabelian, two important variants of Fourier sampling have been identified: the weak standard method, where only representation names are measured, and the strong standard method, where full measurement (i.e., the row and column of the representation, in a suitably chosen basis) occurs. It has remained open whether the strong standard method is indeed stronger. In this article, we settle this question in the affirmative. We show that hidden subgroups H of the q-hedral groups, i.e., semidirect products Z_q \\ltimes Z_p where q | (p-1), and in particular the affine groups A_p, can be information-theoretically reconstructed using the strong standard method. Moreover, if |H| = p/...

  4. AUTOREGRESSIVE MODEL AND POWER SPECTRUM CHARATERISTICS OF CURRENT SIGNAL IN HIGH FREQUENCY GROUP PULSE MICRO ELECTROCHEMICAL MACHINING

    Institute of Scientific and Technical Information of China (English)

    TANG Xinglun; ZHANG Zhijing; ZHOU Zhaoying; YANG Xiaodong

    2006-01-01

    The identification of the inter-electrode gap size in the high frequency group pulse micro-electrochemical machining (HGPECM) is mainly discussed. The auto-regressive(AR) model of group pulse current flowing across the cathode and the anode are created under different situations with different processing parameters and inter-electrode gap size. The AR model based on the current signals indicates that the order of the AR model is obviously different relating to the different processing conditions and the inter-electrode gap size; Moreover, it is different about the stability of the dynamic system, i.e. the white noise response of the Green's function of the dynamic system is diverse. In addition, power spectrum method is used in the analysis of the dynamic time series about the current signals with different inter-electrode gap size, the results show that there exists a strongest power spectrum peak, characteristic power spectrum(CPS), to the current signals related to the different inter-electrode gap size in the range of 0~5 kHz. Therefore, the CPS of current signals can implement the identification of the inter-electrode gap.

  5. The coherent Cerenkov radiated power from a group of field-aligned test particles in a magnetoplasma

    Science.gov (United States)

    Farrell, W. M.; Goertz, C. K.

    1990-01-01

    An expression is derived that describes the coherent Cerenkov radiated power from a group of test particles in a plasma medium moving parallel to a magnetic field. In this analysis, each particle has an arbitrary position and velocity along a field line and, as a consequence, both the spatial and temporal coherence of the radiation are considered. As an example, it is demonstrated that a monoenergetic electron beam consisting of small pulses can generate wave powers well above incoherent levels if the pulse spacing is comparable to an integer number of emission wavelengths. It is also shown that, if the beam particles have a velocity spread, Delta-V, the wave powers will decrease in time due to the reduced temporal coherence of the particle radiators, where this coherence scales as 1/Delta-V. This latter effect applies to any charged particle beam propagating in a magnetoplasma, because even an initially monoenergetic beam becomes thermalized by electrostatic wave-particle interactions reducing the radiated power.

  6. The Power of Urban Planning on Environmental Sustainability: A Focus Group Study in Finland

    Directory of Open Access Journals (Sweden)

    Eeva-Sofia Säynäjoki

    2014-09-01

    Full Text Available Sustainable communities are promoted as a desirable policy goal and, in particular, local authorities are encouraged to contribute to climate change mitigation through urban planning. Furthermore, recent research takes a broad perspective on the environmental sustainability of urban areas and considers the environmental impact of all consumption. A focus group study was conducted in Finland for the purpose of examining how increased environmental awareness influences urban land use. The 32 participants of three focus groups were professionals of urban planning and environmental sustainability, at both a municipal and a state level. The main finding was that urban planning is viewed as being unable to support environmental sustainability in the broader sense. In general, the participants did not see a connection between urban structure and sustainable lifestyles and only the influence of planning on housing and daily journeys was recognised. Three main reasons for this were identified. Firstly, environmental sustainability in its broader definition is seen as too complex for urban planners to influence alone. Secondly, the dominance of short-term economic issues in decision-making and the lack of co-operation from other stakeholders to achieve environmental aims demotivate land use planners. Thirdly, the prioritisation of urban density may overrule alternative means of promoting environmental sustainability, such as the encouragement of sustainable suburban or non-urban lifestyles.

  7. When is differential treatment discriminatory? Legal, ethical, and professional considerations for psychology trainees with disabilities.

    Science.gov (United States)

    Taube, Daniel O; Olkin, Rhoda

    2011-11-01

    A supervisor may tell graduate trainees with obvious disabilities to disclose the disability to potential clients. Legal and ethical guidelines only partially address whether this requirement is permissible. Here we examine such disclosures from several vantage points. Professional judgments guide supervisors in deciding whether to request that a trainee disclose a disability. The law provides little guidance to supervisors in making this decision. Instead, professional ethics and beliefs about disability drive decisions, and these beliefs may be prejudicial. In this article, we examine whether it is good practice for a supervisor in a practicum or internship to require a trainee with an obvious disability to disclose the disability to potential clients before the first meeting so that the client has freedom to request a different therapist. We use this situation to examine the pertinent legal standards; ethical guidelines; and clinical, professional, and social justice issues. The requirement of disclosure may not be in the best interests of the client and has deleterious repercussions for trainees with disabilities, their peers, and the profession. Unless addressed without prejudice, differential treatment becomes discriminatory and is an obstacle to successful completion of professional education by trainees with obvious disabilities.

  8. Two-Way Training Design for Discriminatory Channel Estimation in Wireless MIMO Systems

    CERN Document Server

    Huang, Chao-Wei

    2011-01-01

    This work examines the use of two-way training in multiple-input multiple-output (MIMO) wireless systems to discriminate the channel estimation performances between a legitimate receiver (LR) and an unauthorized receiver (UR). This thesis extends upon the previously proposed discriminatory channel estimation (DCE) scheme that allows only the transmitter to send training signals. The goal of DCE is to minimize the channel estimation error at LR while requiring the channel estimation error at UR to remain beyond a certain level. If the training signal is sent only by the transmitter, the performance discrimination between LR and UR will be limited since the training signals help both receivers perform estimates of their downlink channels. In this work, we consider instead the two-way training methodology that allows both the transmitter and LR to send training signals. In this case, the training signal sent by LR helps the transmitter obtain knowledge of the transmitter-to-LR channel, but does not help UR estim...

  9. Electronic Stopping Power for 0.05-10 MeV Protons in a Group of Organic Materials

    Institute of Scientific and Technical Information of China (English)

    TAN Zhen-Yu; XIA Yue-Yuan; ZHAO Ming-Wen; LIU Xiang-Dong; ZHANG Li-Ming

    2008-01-01

    Electronic stopping powers for 0.05-10 Me V protons in a group of organic materials are systematically calculated. The calculations are based on Ashley's dielectric model, and an evaluation approach of optical energy loss function is incorporated into Ashley's model because no experimental optical data are available for most of the organic materials under consideration. The Barkas-effect correction and Bloch correction are included. The proton stopping powers for the considered organic materials except for mylar in the energy range from 0.05 to 10 MeV are presented for the first time. The results may be useful for studies of various radiation effects in these materials and for space research.

  10. 我国工资水平差距分析:歧视性工资现象%Income gap:Phenomenon of Discriminatory Wage

    Institute of Scientific and Technical Information of China (English)

    张冬平; 郭震

    2013-01-01

    Based on a national income survey made on samples of 31 provinces in 2012 , this paper ana-lyzes and explains the income gap and discriminatory wage structure in the labor market on the basis of areas'economic dividing using Oaxaca-Blinder decomposition method .The results show that discrimina-tion in the labor market is still the main cause of income inequality from the analysis of HuKou wage gap , gender wage gap and nationality wage gap .Education plays an important role in shrinking Hukou wage gap and technological level can't be neglected in shrinking gender wage gap .Moreover, working experi-ences can shrink nationality wage gap .The discriminatory wage structure shows that the more developed area , the more obvious phenomenon of discriminatory wage , which lies in that floating population are dis-criminated against on education , female are discriminated against on age while minority are discriminated against on education and working experiences;from analysis of industry wage gap relating closely to group interest , education rewards totally increase .Along with the area's economy developing , industry discrimi-natory wage shows from the discrimination on age and health to education and work experiences .%利用2012年全国31个省的微观调查数据,在经济区域划分的基础上,采用Oaxaca-Blinder分解方法对劳动力市场的工资差距、歧视性工资结构进行了分析及解释。研究结果表明:从与个人相关的户籍工资差距、性别工资差距、民族工资差距分析结果来看,劳动力市场的歧视仍是工资不平等的主要根源。教育在缩小户籍工资差异方面起着重要作用,技术水平在缩小性别工资差异方面不容忽视,工作经验可以缩小民族工资差异。从歧视性工资结构来看,经济越发达的区域,流动人口在教育上的歧视、女性在年龄上的歧视、少数民族在教育和工作经验方面的歧视越凸显;从与收入群体利

  11. External support to local institutions: providing political leverage to weaker groups, or sustaining traditional relations of power?

    DEFF Research Database (Denmark)

    Nygaard, Ivan

    2008-01-01

    leverage for weaker groups, while others may sustain existing or traditional relations of power. The aim of this study of three cases of donor-supported institutions in Burkina Faso is to understand why close relatives of traditional chiefs invest in gaining control over a municipality, while showing only...... economic resources. The study thus enhances our understanding of mechanisms for access to local donor-supported institutions. Il existe tout un pan de la littérature qui montre que les institutions appuyées par les bailleurs de fonds en Afrique Subsaharienne (ASS) sont accaparées par les élites locales...

  12. Can bathymetry be a discriminatory factor for the distribution of benthic foraminiferal morpho-groups in modern marine sediments?

    Digital Repository Service at National Institute of Oceanography (India)

    Nigam, R.; Khare, N.; Mayenkar, D.N.

    The foraminiferal content of one hundred eight modern marine sediment samples off Vengurla-Cochin sector (ranging in water depth from 30 to 1330 m). West Coast of India was studied. A total of two hundred four foraminiferal species (comprised of one...

  13. Discriminatory attitudes and practices by health workers toward patients with HIV/AIDS in Nigeria.

    Directory of Open Access Journals (Sweden)

    Chen Reis

    2005-08-01

    Full Text Available BACKGROUND: Nigeria has an estimated 3.6 million people with HIV/AIDS and is home to one out of every 11 people with HIV/AIDS worldwide. This study is the first population-based assessment of discrimination against people living with HIV/AIDS in the health sector of a country. The purpose of this study was to characterize the nature and extent of discriminatory practices and attitudes in the health sector and indicate possible contributing factors and intervention strategies. The study involved a cross-sectional survey of 1,021 Nigerian health-care professionals (including 324 physicians, 541 nurses, and 133 midwives identified by profession in 111 health-care facilities in four Nigerian states. METHODS AND FINDINGS: Fifty-four percent of the health-care professionals (550/1,021 were sampled from public tertiary care facilities. Nine percent of professionals reported refusing to care for an HIV/AIDS patient, and 9% indicated that they had refused an HIV/AIDS patient admission to a hospital. Fifty-nine percent agreed that people with HIV/AIDS should be on a separate ward, and 40% believed a person's HIV status could be determined by his or her appearance. Ninety-one percent agreed that staff and health-care professionals should be informed when a patient is HIV-positive so they can protect themselves. Forty percent believed that health-care professionals with HIV/AIDS should not be allowed to work in any area of health-care that requires patient contact. Twenty percent agreed that many with HIV/AIDS behaved immorally and deserve the disease. Basic materials needed for treatment and prevention of HIV were not adequately available. Twelve percent agreed that treatment of opportunistic infections in HIV/AIDS patients wastes resources, and 8% indicated that treating someone with HIV/AIDS is a waste of precious resources. Providers who reported working in facilities that did not always practice universal precautions were more likely to favor

  14. Analyzing indirect effects in cluster randomized trials. The effect of estimation method, number of groups and group sizes on accuracy and power.

    Directory of Open Access Journals (Sweden)

    Joop eHox

    2014-02-01

    Full Text Available Cluster randomized trials assess the effect of an intervention that is carried out at the group or cluster level. Ajzen’s theory of planned behaviour is often used to model the effect of the intervention as an indirect effect mediated in turn by attitude, norms and behavioural intention. Structural equation modelling (SEM is the technique of choice to estimate indirect effects and their significance. However, this is a large sample technique, and its application in a cluster randomized trial assumes a relatively large number of clusters. In practice, the number of clusters in these studies tends to be relatively small, e.g. much less than fifty. This study uses simulation methods to find the lowest number of clusters needed when multilevel SEM is used to estimate the indirect effect. Maximum likelihood estimation is compared to Bayesian analysis, with the central quality criteria being accuracy of the point estimate and the confidence interval. We also investigate the power of the test for the indirect effect. We conclude that Bayes estimation works well with much smaller cluster level sample sizes such as 20 cases than maximum likelihood estimation; although the bias is larger the coverage is much better. When only 5 to 10 clusters are available per treatment condition even with Bayesian estimation problems occur.

  15. A study on associations of Korean sample group for colors applied to the nuclear power plant control room

    Energy Technology Data Exchange (ETDEWEB)

    Oh, In Seok; Lee, Jung Woon; Lee, Yong Hee; Lee, Hyun Chul [Korea Atomic Energy Research Institute, Taejeon (Korea); Lee, Dhong Ha [Suwon University, Whasung (Korea)

    2002-05-01

    Colors are widely used to warn risk levels and to attract attention of the public. Korea Standard Nuclear Reactor Control Room (KSNRCR) also uses several colors to differentiate warnings, priorities, status, borders, and messages based on the HF010 guideline. However the previous studies showed that the general public not engaged in a specific job domain had different associations of colors as regulated in the standards or the guidelines. It is also expected that the general public not engaged in nuclear power plant industry will have different color association system from the color coding system applied to the KSNRCR. So, this study was performed to show whether there is any difference between color association of a sample Korean group and the color meanings specified in the HF010 guideline. The general public not engaged in the nuclear power plant industry have no idea of the color usage in the nuclear control room. So we converted the specific color usage situation into similar but general situations. In questionnaire, we gave subjects the general situation where color coding is appled and alternative colors which were applied to the HF010 guidelines. And we asked the subjects to choose the colors proper to the situation and to rank the colors according to the degree of suitability. A hundred college students participated in the experiment. 10 refs., 7 tabs. (Author)

  16. An Original Stepwise Multilevel Logistic Regression Analysis of Discriminatory Accuracy: The Case of Neighbourhoods and Health.

    Directory of Open Access Journals (Sweden)

    Juan Merlo

    Full Text Available Many multilevel logistic regression analyses of "neighbourhood and health" focus on interpreting measures of associations (e.g., odds ratio, OR. In contrast, multilevel analysis of variance is rarely considered. We propose an original stepwise analytical approach that distinguishes between "specific" (measures of association and "general" (measures of variance contextual effects. Performing two empirical examples we illustrate the methodology, interpret the results and discuss the implications of this kind of analysis in public health.We analyse 43,291 individuals residing in 218 neighbourhoods in the city of Malmö, Sweden in 2006. We study two individual outcomes (psychotropic drug use and choice of private vs. public general practitioner, GP for which the relative importance of neighbourhood as a source of individual variation differs substantially. In Step 1 of the analysis, we evaluate the OR and the area under the receiver operating characteristic (AUC curve for individual-level covariates (i.e., age, sex and individual low income. In Step 2, we assess general contextual effects using the AUC. Finally, in Step 3 the OR for a specific neighbourhood characteristic (i.e., neighbourhood income is interpreted jointly with the proportional change in variance (i.e., PCV and the proportion of ORs in the opposite direction (POOR statistics.For both outcomes, information on individual characteristics (Step 1 provide a low discriminatory accuracy (AUC = 0.616 for psychotropic drugs; = 0.600 for choosing a private GP. Accounting for neighbourhood of residence (Step 2 only improved the AUC for choosing a private GP (+0.295 units. High neighbourhood income (Step 3 was strongly associated to choosing a private GP (OR = 3.50 but the PCV was only 11% and the POOR 33%.Applying an innovative stepwise multilevel analysis, we observed that, in Malmö, the neighbourhood context per se had a negligible influence on individual use of psychotropic drugs, but

  17. Economic assessment group on power transmission and distribution networks tariffs; Groupe d'expertise economique sur la tarification des reseaux de transport et de distribution de l'electricite

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-06-01

    Facing the new law on the electric power market liberalization, the french government created an experts group to analyze solutions and assessment methods of the electrical networks costs and tariffs and to control their efficiency. This report presents the analysis and the conclusions of the group. It concerns the three main subjects: the regulation context, the tariffing of the electric power transmission and distribution (the cost and efficiency of the various options) and the tariffing of the electric power supply to the eligible consumers. The authors provide a guideline for a tariffing policy. (A.L.B.)

  18. Economic assessment group on power transmission and distribution networks tariffs; Groupe d'expertise economique sur la tarification des reseaux de transport et de distribution de l'electricite

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-06-01

    Facing the new law on the electric power market liberalization, the french government created an experts group to analyze solutions and assessment methods of the electrical networks costs and tariffs and to control their efficiency. This report presents the analysis and the conclusions of the group. It concerns the three main subjects: the regulation context, the tariffing of the electric power transmission and distribution (the cost and efficiency of the various options) and the tariffing of the electric power supply to the eligible consumers. The authors provide a guideline for a tariffing policy. (A.L.B.)

  19. E-service quality: An investigation of its key dimensions and the discriminatory power in the residential property sector

    Directory of Open Access Journals (Sweden)

    Justin Beneke

    2011-12-01

    Full Text Available Research Statement: With an increase in competition within the South African property sector, real estate agencies need to ensure that their channels are as effective as possible. Using the Internet and mobile technologies represents a new means to reach customers and achieve lower operating costs. This study seeks to ascertain which factors potential buyers consider important when perusing residential property in an online environment. Hence, the dimensions of e-service quality, which constitute their online experience, will be explored. In addition, this research explores buyer typologies and probes whether other forms of technology, such as a mobile interface, may be of commercial value to the realtor. Methodology: The empirical analysis was conducted by means of a quantitative survey. A questionnaire was designed to test the application of the e-service quality construct in the South African real-estate sector. Data was obtained from 300 respondents, across the age spectrum, who filled the criteria of being prospective buyers. Convenience sampling was primarily used to collect responses as the researchers were unable to obtain access to a specific database of listed property buyers. Results & Conclusion: As mirrored in other studies of this nature, it was found that trust is paramount when initiating property sales online. All other variables in the construct (site features, information, accessibility, communication, reliability, responsiveness and personalisation also proved significant. A cluster analysis revealed that older respondents preferred a higher level of support - across all attributes of e-service quality - when interacting with online property services. Lastly, the mobile interface appears to appeal to 'students' as well as 'mature workers'. It is surmised that these individuals have access to smart phones capable of being used for accessing property portals. However, the 'young workers' appear less enthusiastic about the mobile interface, seemingly preferring to either access such portals via the Internet or visiting agents personally.

  20. [Discriminatory power of executive functions and of theory of mind in attention deficit hyperactivity disorder. Rationale for intervention].

    Science.gov (United States)

    Miranda-Casas, A; Berenguer-Forner, C; Rosello-Miranda, B; Baixauli-Fortea, I; Rosello-Miranda, R; Colomer-Diago, C

    2017-02-24

    Introduccion. Los deficits en funcionamiento ejecutivo y en teoria de la mente (ToM) estan presentes en los niños con trastorno por deficit de atencion/hiperactividad (TDAH). Identificar la magnitud de la asociacion entre funcionamiento ejecutivo y ToM resulta primordial para la comprension del trastorno. Objetivos. Adoptando un enfoque de evaluacion naturalista, se analiza la capacidad del funcionamiento ejecutivo frente a la ToM para discriminar entre niños con TDAH y con desarrollo tipico, y se identifica el grado de asociacion entre deficits en los componentes de funcionamiento ejecutivo (regulacion conductual y metacognitivos) y de la ToM. Sujetos y metodos. Participaron un grupo de 35 niños con TDAH y otro de 37 niños con desarrollo tipico entre 7 y 11 años, igualados en edad y capacidad intelectual. Los padres evaluaron las habilidades de ToM y los profesores estimaron las funciones ejecutivas. Resultados y conclusiones. El porcentaje de niños con TDAH clasificados correctamente fue superior en el analisis discriminante al introducir los componentes de funcionamiento ejecutivo como variable independiente, que en el analisis discriminante realizado con la ToM. No obstante, un elevado porcentaje de niños con deficits en funcionamiento ejecutivo tambien tenian problemas en ToM. Se revisan intervenciones enfocadas en el desarrollo de un rango amplio de procesos ejecutivos.

  1. Discriminatory power of indicators predictors of visceral adiposity evaluated by computed tomography in adults and elderly individuals.

    Science.gov (United States)

    Carneiro Roriz, Anna Karla; Santana Passos, Luiz Carlos; Cunha de Oliveira, Carolina; Eickemberg, Michaela; de Almeida Moreira, Pricilla; Ramos Sampaio, Lílian

    2014-06-01

    Introducción: La identificación de métodos antropométricos de adiposidad abdominal, los predictores de exceso del tejido adiposo visceral (TAV) permiten una evaluación rápida y de bajo costo del riesgo de enfermedades cardiovasculares en ancianos. Objetivo: Evaluar el poder discriminatorio de los indicadores antropométricos para la detección de exceso del tejido adiposo visceral. Métodos: Estudio transversal compuesto por 194 adultos y ancianos para la comparación entre ambos sexos y por grupos de edad. Las variables antropométricas: Razón cintura/estatura (RCE), Razón cintura/muslo (RCM), el Índice Diámetro Abdominal (SAD/muslo) e el Índice diámetro abdominal altura (SAD/estatura). El área TAV fue identificado por tomografía computarizada. Análisis con la curva ROC. Resultados: Se observó una alta correlación entre el área del tejido adiposo visceral y la mayoría de los indicadores antropométricos (p ≤0,001). Entre los hombres de edad avanzada, la razón cintura/estatura mostró áreas bajo la curva ROC por encima de 0,90 y puntos de corte de 0,55 (sens: 85,7%, espec: 82,4%, VPP: 99,9%). Para las mujeres de edad avanzada, el corte fue de 0,58 (sens: 81,0%, espec: 78,6%). Para SAD/estatura, las áreas bajo la curva ROC fueron ≥0,83 (p ≤0,01), con puntos de corte de 0,12 para hombres y 0,13 para las mujeres. Conclusión: Había se ha observado un fuerte poder discriminatorio de los indicadores antropométricos de obesidad abdominal visceral. La Razón cintura/altura y el diámetro abdominal estatura mostraron un mejor desempeño para predecir la área de TAV de riesgo en los ancianos, sin la necesidad de medirla por tomografía computarizada.

  2. Power, Identity, and Organizational Structure as Reflected in Schools for Minority Groups: A Case Study of Jewish Schools in Paris, Brussels, and Geneva

    Science.gov (United States)

    Gross, Zehavit

    2006-01-01

    This article compares the linkages between organizational structure, power relations, and group identities within the private schools operated by the francophone Jewish communities of Brussels, Paris, and Geneva. A school's organizational structure and balance of power reflect its identity and its conceptual world. That is, its organizational…

  3. Optimizing the Power of Genome-Wide Association Studies by Using Publicly Available Reference Samples to Expand the Control Group

    Science.gov (United States)

    Zhuang, Joanna J; Zondervan, Krina; Nyberg, Fredrik; Harbron, Chris; Jawaid, Ansar; Cardon, Lon R; Barratt, Bryan J; Morris, Andrew P

    2010-01-01

    Genome-wide association (GWA) studies have proved extremely successful in identifying novel genetic loci contributing effects to complex human diseases. In doing so, they have highlighted the fact that many potential loci of modest effect remain undetected, partly due to the need for samples consisting of many thousands of individuals. Large-scale international initiatives, such as the Wellcome Trust Case Control Consortium, the Genetic Association Information Network, and the database of genetic and phenotypic information, aim to facilitate discovery of modest-effect genes by making genome-wide data publicly available, allowing information to be combined for the purpose of pooled analysis. In principle, disease or control samples from these studies could be used to increase the power of any GWA study via judicious use as “genetically matched controls” for other traits. Here, we present the biological motivation for the problem and the theoretical potential for expanding the control group with publicly available disease or reference samples. We demonstrate that a naïve application of this strategy can greatly inflate the false-positive error rate in the presence of population structure. As a remedy, we make use of genome-wide data and model selection techniques to identify “axes” of genetic variation which are associated with disease. These axes are then included as covariates in association analysis to correct for population structure, which can result in increases in power over standard analysis of genetic information from the samples in the original GWA study. Genet. Epidemiol. 34: 319–326, 2010. © 2010 Wiley-Liss, Inc. PMID:20088020

  4. 75 FR 45623 - Morris Energy Group, LLC v.PSEG Energy Resources & Trade LLC; PSEG Fossil LLC; and PSEG Power LLC...

    Science.gov (United States)

    2010-08-03

    ... Energy Regulatory Commission Morris Energy Group, LLC v.PSEG Energy Resources & Trade LLC; PSEG Fossil LLC; and PSEG Power LLC; Notice of Complaint July 27, 2010. Take notice that on July 23, 2010, Morris Energy Group, LLC (Morris Energy) (Complainant) filed a complaint against PSEG Energy Resources &...

  5. Mom Power: preliminary outcomes of a group intervention to improve mental health and parenting among high-risk mothers.

    Science.gov (United States)

    Muzik, Maria; Rosenblum, Katherine L; Alfafara, Emily A; Schuster, Melisa M; Miller, Nicole M; Waddell, Rachel M; Stanton Kohler, Emily

    2015-06-01

    Maternal psychopathology and traumatic life experiences may adversely impact family functioning, the quality of the parent-child relationship and the attachment bond, placing the child's early social-emotional development at risk. Attachment-based parenting interventions may be particularly useful in decreasing negative outcomes for children exposed to risk contexts, yet high risk families frequently do not engage in programs to address mental health and/or parenting needs. This study evaluated the effects of Mom Power (MP), a 13-session parenting and self-care skills group program for high-risk mothers and their young children (age parenting competence, and engagement in treatment. Mothers were referred from community health providers for a phase 1 trial to assess feasibility, acceptability, and pilot outcomes. At baseline, many reported several identified risk factors, including trauma exposure, psychopathology, poverty, and single parenthood. Ninety-nine mother-child pairs were initially recruited into the MP program with 68 women completing and providing pre- and post-self-report measures assessing demographics and trauma history (pre-assessment only), maternal mental health (depression and post-traumatic stress disorder (PTSD)), parenting, and intervention satisfaction. Results indicate that MP participation was associated with reduction in depression, PTSD, and caregiving helplessness. A dose response relationship was evident in that, despite baseline equivalence, women who attended ≥70 % of the 10 groups (completers; N = 68) improved on parenting and mental health outcomes, in contrast to non-completers (N = 12). Effects were most pronounced for women with a mental health diagnosis at baseline. The intervention was perceived as helpful and user-friendly. Results indicate that MP is feasible, acceptable, and holds promise for improving maternal mental health and parenting competence among high-risk dyads. Further research is warranted to evaluate

  6. Functional MRI of the Reserpine-Induced Putative Rat Model of Fibromyalgia Reveals Discriminatory Patterns of Functional Augmentation to Acute Nociceptive Stimuli

    Science.gov (United States)

    Wells, Jack A.; Shibata, Sayaka; Fujikawa, Akihiko; Takahashi, Masayasu; Saga, Tsuneo; Aoki, Ichio

    2017-01-01

    Functional neuroimaging, applied to pre-clinical models of chronic pain, offers unique advantages in the drive to discover new treatments for this prevalent and oppressive condition. The high spatial and temporal resolution of fMRI affords detailed mapping of regional pharmacodynamics that underlie mechanisms of pain suppression by new analgesics. Despite evidence supporting the translational relevance of this approach, relatively few studies have investigated fMRI abnormalities in rodent models of chronic pain. In this study, we used fMRI to map the BOLD response in a recently developed putative rat model of fibromyalgia to innocuous and acute nociceptive stimuli by applying a step-wise graded electrical forepaw stimulation paradigm, with comparison to healthy controls. We observed discriminatory functional signatures (p < 0.001) to 2 mA electrical forepaw stimulation, found to be innocuous in the control group. As such, this translational approach provides sensitive and quantitative neural correlates of the underlying chronic disease. The regional patterns of functional augmentation were found to be concordant with previous studies of nociception in the anaesthetised rat brain, supporting the specificity of this approach in the study of altered central pain processing in reserpine induced myalgia. The methodology introduced in this work represents a novel platform for emerging treatment evaluation in highly experimentally controlled conditions. PMID:28079057

  7. On the Stabilizer of the Automorphism Group of a 4-valent Vertex-transitive Graph with Odd-prime-power Order

    Institute of Scientific and Technical Information of China (English)

    Yan-quan Feng; Jin Ho Kwak; Ming-yao Xu

    2003-01-01

    Let X be a 4-valent connected vertex-transitive graph with odd-prime-power order pk (k ≥ 1)and let A be the full automorphism group of X. In this paper, we prove that the stabilizer Av of a vertex v in A is a 2-group ifp ≠ 5, or a {2,3}-group ifp = 5. Furthermore, ifp = 5 |Av| is not divisible by 32. As a result, we show that any 4-valent connected vertex-transitive graph with odd-prime-power order pk (k ≥ 1)is at most 1-arc-transitive for p ≠ 5 and 2-arc-transitive for p = 5.

  8. Integrating gut microbiota immaturity and disease-discriminatory taxa to diagnose the initiation and severity of shrimp disease.

    Science.gov (United States)

    Xiong, Jinbo; Zhu, Jinyong; Dai, Wenfang; Dong, Chunming; Qiu, Qiongfen; Li, Chenghua

    2017-04-01

    Increasing evidence has emerged a tight link among the gut microbiota, host age and health status. This osculating interplay impedes the definition of gut microbiome features associated with host health from that in developmental stages. Consequently, gut microbiota-based prediction of health status is promising yet not well established. Here we firstly tracked shrimp gut microbiota (N = 118) over an entire cycle of culture; shrimp either stayed healthy or progressively transitioned into severe disease. The results showed that the gut microbiota were significantly distinct over shrimp developmental stages and disease progression. Null model and phylogenetic-based mean nearest taxon distance (MNTD) analyses indicated that deterministic processes that governed gut community became less important as the shrimp aged and disease progressed. The predicted gut microbiota age (using the profiles of age-discriminatory bacterial species as independent variables) fitted well (r = 0.996; P shrimp, but sharply decreased when disease emerged. By distinguishing between age- and disease- discriminatory taxa, we developed a model, bacterial indicators of shrimp health status, to diagnose disease from healthy subjects with 91.5% accuracy. Notably, the relative abundances of the bacterial indicators were indicative for shrimp disease severity. These findings, in aggregate, add our understanding on the gut community assembly patterns over shrimp developmental stages and disease progression. In addition, shrimp disease initiation and severity can be accurately diagnosed using gut microbiota immaturity and bacterial indicators. © 2017 Society for Applied Microbiology and John Wiley & Sons Ltd.

  9. Design of Optimized Low Power and Area Efficient Digital FIR Filter using Modified Group Structures based Square Root Carry Select Adder

    Directory of Open Access Journals (Sweden)

    S. Murugeswari

    2015-01-01

    Full Text Available In Digital Signal Processing, Finite Impulse Response (FIR filter is mostly used for communications and radar applications. The Performance of FIR filter depends on Multiplier and adder circuits used in filter. To reduce the dynamic power consumption and chip size, different multiplier and adder combinations are used in order to improve the overall performance of FIR filter. The Low Power Modified Square Root Carry Select Adder (M-SQRT CSLA is presented in this study by introducing half adders instead of full adders. The proposed M-SQRT CSLA has been designed to reduce dynamic power consumption. Hence the modified SQRT CSLA is applied into Wallace multiplier for addition process after the partial product generation stage. MAC unit of the Digital FIR filter is designed by using modified Wallace multipliers and M-SQRT CSLA. Further the Group 2, Group 3; Group 4 and Group5 structures of SQRT CSLA were constructed using half adders only. Comparison between proposed SQRT CSLA and Modified Carry Save Adder (MCSA has been done with reference to the Area, Power and Delay. It is proved that the proposed SQRT CSLA consumes less area and power than all other methods. Simulation is performed by Modelsim6.3c and Synthesis process is done by Xilinx 10.1. The simulation result shows that digital filter with proposed SQRT CSLA occupies less area and consumes low power.

  10. Alcohol Use, Stigmatizing/Discriminatory Attitudes, and HIV High-Risk Sexual Behaviors among Men Who Have Sex with Men in China

    Directory of Open Access Journals (Sweden)

    Meizhen Liao

    2014-01-01

    Full Text Available Objective. This research was conducted to assess the correlates of alcohol consumption and HIV/AIDS-related stigmatizing and discriminatory attitudes among men who have sex with men (MSM in Shandong province, China. Methods. A cross-sectional survey provided demographics, sexual behaviors, illicit drug use, alcohol consumptions, and service utilization. Results. Of 1,230 participants, 82.8% were single, 85.7% aged 3 times per week in the past six months. The average total score of stigmatizing and discriminatory attitude was 37.4 ± 4.4. More frequent episodes of alcohol use were independently associated with higher levels of HIV/AIDS-related stigma and discrimination, unprotected anal sex, bisexual identity, multiple male sex partners, drug use, and lower levels of education. Expressing higher levels of HIV/AIDS-related stigmatizing and discriminatory attitudes was independently associated with alcohol use, unprotected male anal sex, bisexuals, more male sex partners, commercial sex with men, and non-receipt of peer education in the past year. Conclusion. HIV/AIDS-related stigmatizing and discriminatory attitudes are common and associated with alcohol use and unprotected sex among MSM. The finding highlights the needs to develop programs that would reduce HIV/AIDS-related stigmatizing and discriminatory attitudes and strengthen alcohol use prevention and risk reduction initiatives among MSM.

  11. Backup power working group best practices handbook for maintenance and operation of engine generators, Volume 1. Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    Gross, R.; Padgett, A.B.; Burrows, K.P.; Fairchild, P.N.; Lam, T.; Janes, J.

    1997-06-01

    This handbook is divided into the four chapters. Chapter one covers the design, procurement, storage, handling and testing of diesel fuel oil to be used in DOE backup power supplies. Chapter two discusses the selection of automatic transfer switches to be used in DOE backup power supplies. Chapter three is about low voltage open frame air circuit breaker operation, testing, and maintenance for DOE backup power supplies. And chapter four covers installation, design, and maintenance of engine cooling water and jacket water systems.

  12. Uncertain Factors Escalate Risks in Power Investment An Interview with Mr. Chen Chiping,Vice President of Capgemini Group (China)

    Institute of Scientific and Technical Information of China (English)

    Chen Peng; Ye Qing

    2006-01-01

    @@ The world is gazing at China,Capgemini also unexceptionally Journalist from China Electric Power (Journalist below for short): The Capgemini consultant carried out global investigations on power industry three times in 2001, 2002and 2003-2004 respectively. As we know, the fourth investigation started since July 2005 was quite different from the previous ones, but focused on Chinese power industry. Would you please introduce the background of this project?

  13. The VGB guidelines for organic matter and dissolved carbon dioxide in the steam-water circuit of power plant - an interim report by the working group

    Energy Technology Data Exchange (ETDEWEB)

    Aspden, J.D. [Eskom, Chemistry and Auxiliary Plant Engineering, Johannesburg (South Africa); Bellows, J.C. [Westinghouse Power Generation, Orlando, FL (United States); Hein, M. [Preussen Elektra, Kraftwerk Staudinger, Grosskrotzenburg (Germany); Huber, S. [DOC-Labor, IHK Technologiefabrik, Karlsruhe (Germany); Maughan, E.V. [Tablar Messtechnik Ges. mbH, Duisburg (Germany); Pflug, H.D.; Rziha, M. [Siemens AG, KWU, Power Generation (KWU), Erlangen (Germany); Seipp, H.-G. [ABB Technikdienste and Logistik GmbH, TDL/C, Mannheim (Germany); Svoboda, R. [ABB Power Generation Ltd., Power Plant Chemistry, Baden (Switzerland); Woost, O. [Solvay Alkali Bernburg GmbH, Bernburg (Germany); Zeijseink, A.G.L. [KEMA Power Generation, ET Arnhem (Netherlands)

    1999-07-01

    Although no overwhelming evidence exists, organic acids and carbon dioxide have nevertheless been implicated as contributors to corrosion problems within the steam-water circuit. A dedicated group of international scientists and power plant chemists has been commissioned under the auspices of the VGB to examine and document the impact of organic matter and dissolved carbon dioxide on materials of construction in the steam-water circuit of power plant. (orig.)

  14. Dis(en)abled: Legitimating Discriminatory Practice in the Name of Inclusion?

    Science.gov (United States)

    Atkins, Liz

    2016-01-01

    This article explores tensions between the policies and practice of inclusion and the lived experiences of disabled young people in education. Drawing on the narratives of two young men who participated in a small pilot study, it utilises theoretical concepts related to disability, structure and agency, and power and control, as it explores the…

  15. Analyzing indirect effects in cluster randomized trials : The effect of estimation method, number of groups and group sizes on accuracy and power

    NARCIS (Netherlands)

    Hox, Joop J.; Moerbeek, Mirjam; Kluytmans, Anouck; van de Schoot, Rens

    2014-01-01

    Cluster randomized trials assess the effect of an intervention that is carried out at the group or cluster level. Ajzen's theory of planned behavior is often used to model the effect of the intervention as an indirect effect mediated in turn by attitude, norms and behavioral intention. Structural

  16. Discriminatory Analysis. 1. Survey Of Discriminatory Analysis

    Science.gov (United States)

    1950-10-01

    Wolfowitz (19Q’_9) showed t-hat the T2 test is the most stringent similar test, and Hunt and Stein showed the Ttest to be most strIngen.t and tl...into the theory of statistics by Neyman and Pearson in 1933, has been the sub-. ject of a great deal of modern development primarily by Abraham Wald ...ratio of maximized likeli- hoods. In 1944j, Wald considered the problem of finding the dis- tribution of a statistic obtained in the manner just

  17. Group-Acceleration Matching in Tapered Optical Fibers for Maximising the Power in the Blue-Edge of a Supercontinuum

    DEFF Research Database (Denmark)

    Sørensen, Simon Toft; Judge, Alex; Thomsen, Carsten L.;

    2011-01-01

    We show that the gradient of a tapered fiber has a major impact on the power actually available in the blueedge of a supercontinuum. We ascribe this to a groupacceleration mismatch induced by the taper.......We show that the gradient of a tapered fiber has a major impact on the power actually available in the blueedge of a supercontinuum. We ascribe this to a groupacceleration mismatch induced by the taper....

  18. Bias and power in group-based epidemiologic studies of low-back pain exposure and outcome - Effects of study size and exposure measurement efforts

    NARCIS (Netherlands)

    Coenen, P.; Mathiassen, S.E.; Kingma, I.; Boot, C.R.L.; Bongers, P.M.; Dieën, J.H. van

    2015-01-01

    Objectives: Exposure-outcome studies, for instance on work-related low-back pain (LBP), often classify workers into groups for which exposures are estimated from measurements on a sample of workers within or outside the specific study. The present study investigated the influence on bias and power i

  19. 76 FR 46793 - PJM Interconnection, L.L.C.; PJM Power Providers Group v. PJM Interconnection, L.L.C.; Notice...

    Science.gov (United States)

    2011-08-03

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission PJM Interconnection, L.L.C.; PJM Power Providers Group v. PJM Interconnection, L.L.C.; Notice Establishing Post-Technical Comment Period As indicated in the June 29,...

  20. How Private "Everyday Racism" and Public "Racism denial" Contribute to Unequal and Discriminatory Educational Experiences

    Science.gov (United States)

    Dovemark, Marianne

    2013-01-01

    The study uses ethnographic research from four classes in secondary school as well as from two groups in upper secondary school, to examine everyday racism as an element of the daily institutional lives of students and teachers. The study is based on long-term participant observation and 89 interviews. These were all audio-recorded and…

  1. Variation in Response to Evidence-Based Group Preventive Intervention for Disruptive Behavior Problems: A View from 938 Coping Power Sessions.

    Science.gov (United States)

    Lochman, John E; Dishion, Thomas J; Boxmeyer, Caroline L; Powell, Nicole P; Qu, Lixin

    2017-01-05

    Prior research suggests that under some conditions, interventions that aggregate high-risk youth may be less effective, or at worse, iatrogenic. However, group formats have considerable practical utility for delivery of preventive interventions, and thus it is crucial to understand child and therapist factors that predict which aggressive children can profit from group intervention and which do not. To address these questions we video-recorded group Coping Power intervention sessions (938 sessions), coded both leader and participant behavior, and analyzed both leader and children's behaviors in the sessions that predicted changes in teacher and parent, reports of problem behavior at 1-year follow up. The sample included 180 high-risk children (69% male) who received intervention in 30 separate Coping Power intervention groups (six children assigned per group). The evidence-based Coping Power prevention program consists of 32 sessions delivered during the 4th and 5th grade years; only the child component was used in this study. The behavioral coding system used in the analyses included two clusters of behaviors for children (positive; negative) and two for the primary group leaders (group management; clinical skills). Growth spline models suggest that high levels of children's negative behaviors predicted increases in teacher and parent rated aggressive and conduct problem behaviors during the follow-up period in the three of the four models. Therapist use of clinical skills (e.g., warmth, nonreactive) predicted less increase in children's teacher-rated conduct problems. These findings suggest the importance of clinical training in the effective delivery of evidence-based practices, particularly when working with high-risk youth in groups.

  2. Tools supporting to radiological groups nuclear power plants; Herramientas de apoyo a grupo radiologicos en centrales nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Gomez-Arguello Gordillo, B.; Torres Gurdiel, C.

    2011-07-01

    Tecnatom years ago conducted training for radiology groups that play a fundamental role in emergency management from Central Emergency support CAT various Spanish plants. Throughout this time, the methodology has evolved and have developed a series of subsidies, some of them implemented in tools that have substantially improved support to these groups.

  3. The influence of control group reproduction on the statistical power of the Environmental Protection Agency's Medaka Extended One Generation Reproduction Test (MEOGRT).

    Science.gov (United States)

    Flynn, Kevin; Swintek, Joe; Johnson, Rodney

    2017-02-01

    Because of various Congressional mandates to protect the environment from endocrine disrupting chemicals (EDCs), the United States Environmental Protection Agency (USEPA) initiated the Endocrine Disruptor Screening Program. In the context of this framework, the Office of Research and Development within the USEPA developed the Medaka Extended One Generation Reproduction Test (MEOGRT) to characterize the endocrine action of a suspected EDC. One important endpoint of the MEOGRT is fecundity of medaka breeding pairs. Power analyses were conducted to determine the number of replicates needed in proposed test designs and to determine the effects that varying reproductive parameters (e.g. mean fecundity, variance, and days with no egg production) would have on the statistical power of the test. The MEOGRT Reproduction Power Analysis Tool (MRPAT) is a software tool developed to expedite these power analyses by both calculating estimates of the needed reproductive parameters (e.g. population mean and variance) and performing the power analysis under user specified scenarios. Example scenarios are detailed that highlight the importance of the reproductive parameters on statistical power. When control fecundity is increased from 21 to 38 eggs per pair per day and the variance decreased from 49 to 20, the gain in power is equivalent to increasing replication by 2.5 times. On the other hand, if 10% of the breeding pairs, including controls, do not spawn, the power to detect a 40% decrease in fecundity drops to 0.54 from nearly 0.98 when all pairs have some level of egg production. Perhaps most importantly, MRPAT was used to inform the decision making process that lead to the final recommendation of the MEOGRT to have 24 control breeding pairs and 12 breeding pairs in each exposure group.

  4. 电力集团客户缴费案例研究%Study on the Payment Case of Electric Power Group Customers

    Institute of Scientific and Technical Information of China (English)

    王立群; 吴薇; 吕敏; 黄蓓雯

    2014-01-01

    For the convenience of group customers’ payment and accounting treatment, the customer care center of a certain electric power company expands the group customers’ payment business under the direct guidance of the company’s marketing department, and takes the lead in conducting the pilot run in the two big group customers of China Telecom and China Mobile. The successful development of this business brings much convenience to group customers’ payment and accounting treatment, and also to electric power company’s entering an item of expenditure in the accounts, and at the same time, effectively reduces the cost of electric power company’s entering an item of expenditure in the accounts.%为方便集团客户缴费和账务处理,某电力公司客户服务中心在公司营销部的直接指导下,拓展了集团客户缴费业务,并率先在中国电信和中国移动两大集团客户中试点运作。这一业务的成功开展,极大地方便了集团客户的缴费和账务处理,也方便了电力公司出账,同时有效降低了电力公司的出账成本。

  5. THE HIDDEN POWER IN GAPS: COMMUNITY HOME CARE VOLUNTEER GROUP PARTICIPANT OF A CATHOLIC CHURCH IN CARIACICA – ES - BRAZIL

    Directory of Open Access Journals (Sweden)

    Clésio de Oliveira Venâncio

    2012-12-01

    Full Text Available Objective: To examine the voluntary community home care mode while a network of affective work in the region of Porto Santana in Cariacica – one of the municipalities of the Metropolitan Area of Greater Vitória – ES – Brazil. Method: an exploratory study, qualitative approach, held together with a group that develops community home care in the territory in which they live in the period April to October 2010. To obtain data group visits were made, targeted interviews and follow-up on their routines, if configuring a cartographic process. Results: the reports of the group's members and of the observations made during the trail pointed to the materialization of a practice where caring configures itself from the movement of living affections within a territory, having elements that make this natural alternative practice in an environment of constant motion.

  6. Will the "real" American please stand up? The effect of implicit national prototypes on discriminatory behavior and judgments.

    Science.gov (United States)

    Yogeeswaran, Kumar; Dasgupta, Nilanjana

    2010-10-01

    Three studies tested whether implicit prototypes about who is authentically American predict discriminatory behavior and judgments against Americans of non-European descent. These studies identified specific contexts in which discrimination is more versus less likely to occur, the underlying mechanism driving it, and moderators of such discrimination. Studies 1 and 2 demonstrated that the more participants held implicit beliefs that the prototypical American is White, the less willing they were to hire qualified Asian Americans in national security jobs; however, this relation did not hold in identical corporate jobs where national security was irrelevant. The implicit belief-behavior link was mediated by doubts about Asian Americans' national loyalty. Study 3 demonstrated a similar effect in a different domain: The more participants harbored race-based national prototypes, the more negatively they evaluated an immigration policy proposed by an Asian American but not a White policy writer. Political conservatism magnified this effect because of greater concerns about the national loyalty of Asian Americans.

  7. DESCRIPTIVE AND DISCRIMINATORY SIGNIFICANCE OF POD PHENOTYPIC TRAITS FOR DIVERSITY ANALYSIS OF COCOA GENOTYPES

    Directory of Open Access Journals (Sweden)

    Daniel B. Adewale

    2013-12-01

    Full Text Available Intra-specific genetic diversity analysis precedes crop breeding proposal for species improvement. Sixteen and twenty-four parental and hybrid cocoa genotypes were respectively laid out in a randomized complete block design of six replications at Ibadan, Nigeria. A sampling unit of fifteen uniformly ripe pods was collected for assessment from each plot. Six quantitative data from the pods were subjected to statistical analysis. Highly significant (P < 0.0001 variability existed among the 40 genotypes. Range of performance of the genotypes were: pod weight (0.43 – 0.86kg, pod length (15.9 – 27.96cm, pod girth (21.51 – 34.07cm, pod thickness (1.26 – 5.71cm, number of beans per pod (20 - 51 and bean weight per pod (0.017 - 0.41kg. Positive and significant (P < 0.001 correlation existed between pod weight and length, pod girth and bean number/pod. The mean Gower genetic distance among the 40 genotypes was 0.228; the least (0.023 existed between G25 and G30 while the highest (0.529 was between G17 and G35. The first three principal component axes explained 73% of the total variation. Three distinct groups emerged from the Ward clustering technique. Significant (P<0.05 intra and inter cluster variability existed in the study. High genetic diversity lies within the studied population. Pod traits were important descriptors for cocoa genotypes classification.

  8. DOE Backup Power Working Group Best Practices Handbook for Maintenance and Operation of Engine Generators, Volume II

    Energy Technology Data Exchange (ETDEWEB)

    Gross, R.E.

    1998-10-30

    The lubricating oil system provides a means to introduce a lubricant in the form of a film to reduce friction and wear between surfaces that bear against each other as they move.1 The oil film which is established also cools the parts by carrying generated heat away from hot surfaces, cleans and carries dirt or metal wear particles to the filter media, and helps seal the piston to the cylinder during combustion. Most systems are pressure lubricated and distribute oil under pressure to bearings, gears, and power assemblies. Lubricating oil usually reaches main, connecting rod, and camshaft bearings through drilled passages in the cylinder block and crankshaft or through piping and common manifolds.Many parts rely on oil for cooling, so if the lube oil system fails to perform its function the engine will overheat. Metal to metal surfaces not separated by a thin film of oil rapidly build up frictional heat. As the metals reach their melting point, they tend to weld together in spots or streaks. Lube oil system failures can cause significant damage to an engine in a short period of time. Proper maintenance and operation of the lubricating oil system is essential if your engine is to accomplish its mission.

  9. Comparison of base composition analysis and Sanger sequencing of mitochondrial DNA for four U.S. population groups.

    Science.gov (United States)

    Kiesler, Kevin M; Coble, Michael D; Hall, Thomas A; Vallone, Peter M

    2014-01-01

    A set of 711 samples from four U.S. population groups was analyzed using a novel mass spectrometry based method for mitochondrial DNA (mtDNA) base composition profiling. Comparison of the mass spectrometry results with Sanger sequencing derived data yielded a concordance rate of 99.97%. Length heteroplasmy was identified in 46% of samples and point heteroplasmy was observed in 6.6% of samples in the combined mass spectral and Sanger data set. Using discrimination capacity as a metric, Sanger sequencing of the full control region had the highest discriminatory power, followed by the mass spectrometry base composition method, which was more discriminating than Sanger sequencing of just the hypervariable regions. This trend is in agreement with the number of nucleotides covered by each of the three assays. Published by Elsevier Ireland Ltd.

  10. Discriminatory zoning in colonial Hong Kong: A review of the post-war literature and some further evidence for an economic theory of discrimination

    OpenAIRE

    Lai, LWC

    2011-01-01

    Purpose: This paper seeks to argue that racially discriminatory zoning in Colonial Hong Kong could have been a form of protectionism driven by economic considerations. Design/methodology/approach: This paper was based on a review of the relevant ordinances, literature, and public information, notably data obtained from the Land Registry and telephone directories. Findings: This paper reveals that many writings on racial matters in Hong Kong were not a correct interpretation or presentation of...

  11. Thread Group Multithreading: Accelerating the Computation of an Agent-Based Power System Modeling and Simulation Tool -- C GridLAB-D

    Energy Technology Data Exchange (ETDEWEB)

    Jin, Shuangshuang; Chassin, David P.

    2014-01-06

    GridLAB-DTM is an open source next generation agent-based smart-grid simulator that provides unprecedented capability to model the performance of smart grid technologies. Over the past few years, GridLAB-D has been used to conduct important analyses of smart grid concepts, but it is still quite limited by its computational performance. In order to break through the performance bottleneck to meet the need for large scale power grid simulations, we develop a thread group mechanism to implement highly granular multithreaded computation in GridLAB-D. We achieve close to linear speedups on multithreading version compared against the single-thread version of the same code running on general purpose multi-core commodity for a benchmark simple house model. The performance of the multithreading code shows favorable scalability properties and resource utilization, and much shorter execution time for large-scale power grid simulations.

  12. Short Term Survival after Admission for Heart Failure in Sweden: Applying Multilevel Analyses of Discriminatory Accuracy to Evaluate Institutional Performance.

    Directory of Open Access Journals (Sweden)

    Nermin Ghith

    Full Text Available Hospital performance is frequently evaluated by analyzing differences between hospital averages in some quality indicators. The results are often expressed as quality charts of hospital variance (e.g., league tables, funnel plots. However, those analyses seldom consider patients heterogeneity around averages, which is of fundamental relevance for a correct evaluation. Therefore, we apply an innovative methodology based on measures of components of variance and discriminatory accuracy to analyze 30-day mortality after hospital discharge with a diagnosis of Heart Failure (HF in Sweden.We analyzed 36,943 patients aged 45-80 treated in 565 wards at 71 hospitals during 2007-2009. We applied single and multilevel logistic regression analyses to calculate the odds ratios and the area under the receiver-operating characteristic (AUC. We evaluated general hospital and ward effects by quantifying the intra-class correlation coefficient (ICC and the increment in the AUC obtained by adding random effects in a multilevel regression analysis (MLRA. Finally, the Odds Ratios (ORs for specific ward and hospital characteristics were interpreted jointly with the proportional change in variance (PCV and the proportion of ORs in the opposite direction (POOR.Overall, the average 30-day mortality was 9%. Using only patient information on age and previous hospitalizations for different diseases we obtained an AUC = 0.727. This value was almost unchanged when adding sex, country of birth as well as hospitals and wards levels. Average mortality was higher in small wards and municipal hospitals but the POOR values were 15% and 16% respectively.Swedish wards and hospitals in general performed homogeneously well, resulting in a low 30-day mortality rate after HF. In our study, knowledge on a patient's previous hospitalizations was the best predictor of 30-day mortality, and this information did not improve by knowing the sex and country of birth of the patient or where the

  13. Schools as Discriminatory Artifacts

    Science.gov (United States)

    Parker, Benjamin D.

    2016-01-01

    Schools tell stories. The materials, designs, and aesthetic flourishes found in and on older schools built during the Progressive Era of American Education can be examined and unpacked for their purposes, subtle messages, and audiences. This type of analysis is of great importance, as many of these schools are still in use today and have served…

  14. 26 CFR 1.79-4T - Questions and answers relating to the nondiscrimination requirements for group-term life...

    Science.gov (United States)

    2010-04-01

    ... January 1, 1984, only if the group policy or policies providing group-term life insurance benefits under... transfer, to be provided with group-term life insurance benefits under a plan that is comparable... life insurance plan be considered discriminatory if active employees receive greater benefits as...

  15. Influence of media symbolic power on group events%传媒符号权力对群体性事件的影响

    Institute of Scientific and Technical Information of China (English)

    张亚菁; 葛靖

    2014-01-01

    传媒作为符号的生产者拥有一种特殊的权力,即使利益关系转化为社会自然次序的符号权力,它不仅使社会的区分加以合法化,也维系着社会的正常运作。然而,随着社会转型的加剧与媒介技术的变革,现有的传媒符号权力面临削弱。文章以此为视角将群体性事件情境下符号权力削弱的表征予以呈现,并试图分析当下群体性事件频发的深层次原因。基于此,提出应建立一种“消能式”的策略模式来保障符号权力的重塑,由此实现促进社会体制的进一步开放,消除群体性事件矛盾冲突的根源。%As a symbol producer,media have a special symbolic power which can turn interest relationship into so-cial natural order. It can not only legalize social distinction,but also maintain normal operation of society. However, with the intensification of social transformation and media technique revolution,the existing media symbolic power is to be weakened. In this paper,we will present the fact that the symbolic power is weakening in the environment of group event,and the causes of frequent group events. This essay suggests a kind of energy-dissipation mode to re-shape the symbolic power of the media so that the social system may be further open and root causes of group events can be eliminated.

  16. OAST Space Theme Workshop. Volume 3: Working group summary. 6: Power (P-2). A. Statement. B. Technology needs (form 1). C. Priority assessment (form 2)

    Science.gov (United States)

    1976-01-01

    Power requirements for the multipurpose space power platform, for space industrialization, SETI, the solar system exploration facility, and for global services are assessed for various launch dates. Priorities and initiatives for the development of elements of space power systems are described for systems using light power input (solar energy source) or thermal power input, (solar, chemical, nuclear, radioisotopes, reactors). Systems for power conversion, power processing, distribution and control are likewise examined.

  17. Mobile But Connected: Harnessing the Power of Self-Efficacy and Group Support for Weight Loss Success through mHealth Intervention.

    Science.gov (United States)

    Kim, Heewon; Faw, Meara; Michaelides, Andreas

    2017-05-01

    Despite the growing popularity of mHealth applications, their usage outcomes have received limited empirical attention. Drawing on server-level user activity data and an online survey (N = 384), this study examines the use of an mHealth application for weight loss to elucidate the ways in which it can help individuals harness the power of self-efficacy and group support to enact behavior change and accomplish their health goals. The results of structural equation modeling based on 6-month user activity data demonstrated that (a) self-efficacy had a positive impact on persistent food logging in an mHealth application; (b) social support received from a mobile group was positively associated with food logging and group participation; and (c) both food logging and group participation predicted weight loss success. Extending these findings, this study suggests theoretical and practical implications for designing individually tailored and evidence-based health intervention strategies using advanced mHealth technologies.

  18. Discourse, Power Interplays and "Disordered Identities": An Intersectional Framework for Analysis and Policy Development

    Science.gov (United States)

    Liasidou, Anastasia

    2016-01-01

    While acknowledging the discursive constitution of student identities through the interplay of unequal power relations and discriminatory processes, the article discusses the ways in which social, emotional and behaviour difficulties (SEBD) are "produced" and "managed" within current schooling. SEBD are routinely framed in…

  19. Surface raw electromyography has a moderate discriminatory capacity for differentiating between healthy individuals and those with TMD: a diagnostic study.

    Science.gov (United States)

    Santana-Mora, Urbano; López-Ratón, Mónica; Mora, Maria J; Cadarso-Suárez, Carmen; López-Cedrún, José; Santana-Penín, Urbano

    2014-06-01

    temporalis over masseter muscles during rest) is strongly recommended to increase the discriminatory capacity of raw sEMG evaluation.

  20. Farmers' willingness to pay for power in India. Conceptual issues, survey results and implications for pricing

    Energy Technology Data Exchange (ETDEWEB)

    Dossani, Rafiq [Senior Research Scholar, Asia-Pacific Research Center, Stanford University, 616 Serra Street, Stanford, CA 94305-6055 (United States); Ranganathan, V. [Professor of Economics and Energy, Indian Institute of Management, Bangalore 560076 (India)

    2004-05-01

    The objective of this paper is to develop strategies useful for raising prices of rural power in India. Such power is currently subsidized and policymakers are eager to make the transition to more efficient prices. The traditionally used measure, willingness to pay (WTP), is shown to have no useful policy implications due to the rationing of power. Using survey data from rural Andhra Pradesh, we show that the utility's cost of power exceeds the income generated by the power. This suggests a political problem - the possibility that low power prices have led to large-scale farming of unproductive land - that will be hard to resolve. Our survey also shows that subsidies are regressive with income. We use measured WTP for higher income groups to propose a discriminatory pricing regime that will raise total revenue by 20%. When combined with removing the causes of motor burnout, such as voltage fluctuations, and eliminating rostering, subsidies can be reduced substantially but probably remain too high to be resolved without political action.

  1. Farmers' willingness to pay for power in India: conceptual issues, survey results and implications for pricing

    Energy Technology Data Exchange (ETDEWEB)

    Dossani, Rafiq [Stanford Univ., Asia-Pacific Research Center, Stanford, CA (United States); Ranganathan, V. [Indian Inst. of Management, Bangalore (India)

    2004-05-01

    The objective of this paper is to develop strategies useful for raising prices of rural power in India. Such power is currently subsidized and policymakers are eager to make the transition to more efficient prices. The traditionally used measure, willingness to pay (WTP), is shown to have no useful policy implications due to the rationing of power. Using survey data from rural Andhra Pradesh, we show that the utility's cost of power exceeds the income generated by the power. This suggests a political problem - the possibility that low power prices have led to large-scale farming of unproductive land - that will be hard to resolve. Our survey also shows that subsidies are regressive with income. We use measured WTP for higher income groups to propose a discriminatory pricing regime that will raise total revenue by 20%. When combined with removing the causes of motor burnout, such as voltage fluctuations, and eliminating rostering, subsidies can be reduced substantially but probably remain too high to be resolved without political action. (Author)

  2. The Profound Power of Groups

    Science.gov (United States)

    Brendtro, Larry K.; Mitchell, Martin L.

    2010-01-01

    Decades of studies show that children's behavior is shaped by relationships in the "social ecology" of family, peers, school, and community. But in recent decades the prevailing scientific dogma was that genes determine destiny. Now it is clear that experience changes genes. For better or worse, environmental experiences including nutrition,…

  3. Effect of electron-withdrawing power of the substituted group on ${}^{\\bullet}$OH radical reaction with substituted aryl sulphides: A pulse radiolysis study

    Indian Academy of Sciences (India)

    Hari Mohan

    2002-12-01

    In neutral aqueous solution of (phenylthio)acetic acid, hydroxyl radical is observed to react with a bimolecular rate constant of 7.2 × 109 dm3 mol-1 s-1 and the transient absorption bands are assigned to ${}^{\\bullet}$OH radical addition to benzene and sulphur with a rough estimated values of 50 and 40% respectively. The reaction of the ${}^{\\bullet}$OH radical with diphenyl sulphide ( = 4.3 × 108 dm3 mol-1 s-1) is observed to take place with formation of solute radical cation, OH-adduct at sulphur and benzene with estimated values of about 12, 28 and 60% respectively. The transient absorption bands observed on reaction of ${}^{\\bullet}$OH radical, in neutral aqueous solution of 4-(methylthio) phenyl acetic acid, are assigned to solute radical cation (max = 550 and 730 nm), OH-adduct at sulphur (max = 360 nm) and addition at benzene ring (max = 320 nm). The fraction of ${}^{\\bullet}$OH radical reacting to form solute radical cation is observed to depend on the electron-withdrawing power of substituted group. In acidic solutions, depending on the concentration of acid and electron-withdrawing power, solute radical cation is the only transient species formed on reaction of ${}^{\\bullet}$OH radical with the sulphides studied.

  4. Performance analysis of electric power group of 50 kVA with MWM engine adapted to Otto cycle, using natural gas

    Directory of Open Access Journals (Sweden)

    Fabrízio L. Figueiredo

    2014-02-01

    Full Text Available This paper presents the data of tests with an internal combustion engine MWM adapted to Otto cycle, coupled to an electric generator with a capacity of 50 kVA, using natural gas . It is presented the characteristics and efficiency of the set for the purpose of comparison with its future operation using synthesis gas produced by a gasifier (biomass gas, to evaluate the feasibility of applying the system in remote locations, where biomass is available and system for transmitting electricity from other generation systems hampered by distance. The performance of the assembly was monitored at 0, 25, 50, 75 and 100% of its power capacity presented in increasing order of load voltages 220, 220, 221, 221 and 222 volts and currents 0, 25, 50, 75 and 100 amperes respectively for the load of 0, 9,5, 19, 27,5 and 38 kW the latter being the maximum output developed by the group.

  5. Power Struggle between Assisting Ministers Group and Hereditary Gentry in the Early Reign of Emperor Qianfei of Liu Song%蔡兴宗远徙事发微

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    宋前废帝在位初年,刘义恭等顾命大臣与戴法兴等恩倖势力联合控制了政局。为了争夺政治权力,刘义恭、戴法兴等执政者与以蔡兴宗为代表的高门士族围绕吏部选官问题展开斗争。执政者企图凭借对“尚书”和“中旨”的控制强行压制高门士族,却遭到高门士族主导之舆论的强烈抵制。最终,刘义恭、戴法兴等执政大臣因为高门士族的反对而在统治阶层中陷于孤立,不久被前废帝消灭,刘宋政局也由此进入一个激烈冲突和动荡的时期。%In the early reign of Emperor Qianfei of Liu Song,Yongguang Assisting Ministers Group,comprising assisting ministers like Liuyigong and minions like Daifaxing,controlled the political situation. Struggling for more political power,the assisting minister group contested with hereditary gentry represented by Caixingzong on the of-ficer collection of the Ministry of Official Personnel Affairs. The assisting minister group attempted to suppress he-reditary gentry with their control of government and court,but was fiercely resisted by the public voices which were dominated by hereditary gentry. Eventually,the assisting minister group was isolated in the dominance hierarchy, which was caused by the opposition of hereditary gentry. Shortly after that,Emperor Qianfei was eliminated and the political situation of Liu Song entered a period of furious conflicts and turbulences.

  6. A combined multi-virulence-locus sequence typing and Staphylococcal Cassette Chromosome mec typing scheme possesses enhanced discriminatory power for genotyping MRSA.

    Science.gov (United States)

    Verghese, Bindhu; Schwalm, Nathan D; Dudley, Edward G; Knabel, Stephen J

    2012-12-01

    Methicillin-resistant Staphylococcus aureus (MRSA) remains a major threat to human populations worldwide. Knowing the extent of MRSA genetic diversity within a healthcare facility may provide important insights into the epidemiology of this important pathogen. MRSA isolates recovered from nasal swabs of patients entering the Intensive Care Unit of the Penn State Milton S. Hershey Medical Center, USA, from 2008 to 2009 were genotyped using Staphylococcal Cassette Chromosome mec (SCCmec), multilocus sequence typing (MLST) and a newly developed multi-virulence-locus sequence typing (MVLST) scheme. Sequence data for seven housekeeping genes (arcC, aroE, glpF, gmk, pta, tpi and yqiL) and six virulence genes (alt, essC, geh, hlgA, htrA and sdrC) were used for MLST and MVLST analyses, respectively. MLST identified 12 sequence types (STs) within the hospital isolates. One ST designated ST5 was the most common subtype (38.8%) followed by ST105 (22.4%) and ST8 (16.4%). In contrast, MVLST identified 29 STs (Virulence Types, VTs) from the same set of isolates, with VT6 (32.8%) being the predominant subtype followed by VT9 (8.9%) and VT2 (8.9%). Subsequent analysis of 25 MRSA isolates associated with an outbreak at a Pennsylvania state prison revealed all isolates were VT2 and SCCmec type IVa. These results suggest that a combination of MVLST and SCCmec typing may clarify the epidemiology of MRSA. Additional research with a more diverse set of strains and correlation with conventional epidemiologic data are needed to validate this new subtyping strategy. Copyright © 2012 Elsevier B.V. All rights reserved.

  7. Management of the post accidental situation applied to Nogent-Sur-Seine nuclear power plant environment. First results of the decontamination of soil and food chain working group

    Energy Technology Data Exchange (ETDEWEB)

    Allain, E.; Mignon, F. [District Agricultural and Forestry Dept. (Aube Administrative AREA), 10 - Troyes (France); Cessac, B.; Gallay, F.; Metivier, J.M.; Reales, N. [Institute for Radiological Protection and Nuclear Safety, 10 - Troyes (France); Gofette, R. [Veterinary Div. (Aube Administrative AREA), 10 - Troyes (France); Mahot, M. [Farmer' s Association (Aube Administrative AREA), 10 - Troyes (France)

    2004-07-01

    From the beginning of 2002, Troyes prefecture has initiated a reflection about the management of a nuclear crisis caused by an accident at the Nogent-sur-Seine nuclear power plant. Five workshops have been created, dealing with the following themes: 'Administrative and economic organization', 'Health risk assessment and the epidemiology', 'Monitoring of environment', 'Movement in the contaminated area' and 'Decontamination of soil and Food chain'. The first results of the 'Decontamination of soil and Food chain' working group, which involves the District Agricultural and Forestry Department, the Farmer's Association, the Institute for Radiological Protection and Nuclear Safety and the Veterinary Division are presented in the poster. The scenario that had been developed for the accident considers the release of 3 radionuclides ({sup 131}I, {sup 134}Cs and {sup 137}Cs) in the environment. The scale of the crisis didn't require the evacuation and the sheltering of the population during the emergency phase. The consequences on the local agricultural products (cereal, beetroot, vine, milk, cow meat...) have been assessed up to 50 km and different strategies of agricultural countermeasures have been studied regarding to the local constraints (soil types, surfaces and quantities concerned) and to the consequences of their implementation (waste types and quantities, costs). Then, decision-making diagrams summed up the technical results and allowed to deepen the global thought. (author)

  8. Rapid identification of strains belonging to the Mycobacterium abscessus group through erm(41) gene pyrosequencing.

    Science.gov (United States)

    Yoshida, Shiomi; Tsuyuguchi, Kazunari; Suzuki, Katsuhiro; Tomita, Motohisa; Okada, Masaji; Shimada, Ryoko; Hayashi, Seiji

    2014-07-01

    Mycobacterium abscessus and Mycobacterium massiliense lung infections have different clarithromycin susceptibilities, making proper identification important; however, standard multi-gene sequencing in clinical laboratories is laborious and time consuming. We developed a pyrosequencing-based method for rapid identification of strains belonging to the M. abscessus group by targeting erm(41). We examined 55 isolates from new pulmonary M. abscessus infections and identified 28 M. abscessus, 25 M. massiliense, and 2 Mycobacterium bolletii isolates. Multi-gene sequencing of 16S rRNA, hsp65, rpoB, and the 16S-23S ITS region was concordant with the results of erm(41) pyrosequencing; thus, the M. abscessus group can be identified by single-nucleotide polymorphisms in erm(41). The method also enables rapid identification of polymorphic, inducible clarithromycin-resistant sequevars (T28 or C28). Pyrosequencing of erm(41) is a rapid, reliable, high-throughput alternative method for identifying and characterizing M. abscessus species. Further testing of a diverse collection of isolates is necessary to demonstrate the discriminatory power of erm(41) sequencing to differentiating species with this highly divergent group.

  9. Does the Presence of Scrapie Affect the Ability of Current Statutory Discriminatory Tests To Detect the Presence of Bovine Spongiform Encephalopathy?

    Science.gov (United States)

    Simmons, M M; Chaplin, M J; Vickery, C M; Simon, S; Davis, L; Denyer, M; Lockey, R; Stack, M J; O'Connor, M J; Bishop, K; Gough, K C; Maddison, B C; Thorne, L; Spiropoulos, J

    2015-08-01

    Current European Commission (EC) surveillance regulations require discriminatory testing of all transmissible spongiform encephalopathy (TSE)-positive small ruminant (SR) samples in order to classify them as bovine spongiform encephalopathy (BSE) or non-BSE. This requires a range of tests, including characterization by bioassay in mouse models. Since 2005, naturally occurring BSE has been identified in two goats. It has also been demonstrated that more than one distinct TSE strain can coinfect a single animal in natural field situations. This study assesses the ability of the statutory methods as listed in the regulation to identify BSE in a blinded series of brain samples, in which ovine BSE and distinct isolates of scrapie are mixed at various ratios ranging from 99% to 1%. Additionally, these current statutory tests were compared with a new in vitro discriminatory method, which uses serial protein misfolding cyclic amplification (sPMCA). Western blotting consistently detected 50% BSE within a mixture, but at higher dilutions it had variable success. The enzyme-linked immunosorbent assay (ELISA) method consistently detected BSE only when it was present as 99% of the mixture, with variable success at higher dilutions. Bioassay and sPMCA reported BSE in all samples where it was present, down to 1%. sPMCA also consistently detected the presence of BSE in mixtures at 0.1%. While bioassay is the only validated method that allows comprehensive phenotypic characterization of an unknown TSE isolate, the sPMCA assay appears to offer a fast and cost-effective alternative for the screening of unknown isolates when the purpose of the investigation was solely to determine the presence or absence of BSE.

  10. Feasibility and Safety of a Powered Exoskeleton for Assisted Walking for Persons With Multiple Sclerosis: A Single-Group Preliminary Study.

    Science.gov (United States)

    Kozlowski, Allan J; Fabian, Michelle; Lad, Dipan; Delgado, Andrew D

    2017-07-01

    To examine the feasibility, safety, and secondary benefit potential of exoskeleton-assisted walking with one device for persons with multiple sclerosis (MS). Single-group longitudinal preliminary study with 8-week baseline, 8-week intervention, and 4-week follow-up. Outpatient MS clinic, tertiary care hospital. Participants (N=13; age range, 38-62y) were mostly women with Expanded Disability Status Scale scores ranging from 5.5 to 7.0. Exoskeleton-assisted walk training. Primary outcomes were accessibility (enrollment/screen pass), tolerability (completion/dropout), learnability (time to event for standing, walking, and sitting with little or no assistance), acceptability (satisfaction on the device subscale of the Quebec User Evaluation of Satisfaction with Assistive Technology version 2), and safety (event rates standardized to person-time exposure in the powered exoskeleton). Secondary outcomes were walking without the device (timed 25-foot walk test and 6-minute walk test distance), spasticity (Modified Ashworth Scale), and health-related quality of life (Patient-Reported Outcomes Measurement and Information System pain interference and Quality of Life in Neurological Conditions fatigue, sleep disturbance, depression, and positive affect and well-being). The device was accessible to 11 and tolerated by 5 participants. Learnability was moderate, with 5 to 15 sessions required to walk with minimal assistance. Safety was good; the highest adverse event rate was for skin issues at 151 per 1000 hours' exposure. Acceptability ranged from not very satisfied to very satisfied. Participants who walked routinely improved qualitatively on sitting, standing, or walking posture. Two participants improved and 2 worsened on ≥1 quality of life domain. The pattern of spasticity scores may indicate potential benefit. The device appeared feasible and safe for about a third of our sample, for whom routine exoskeleton-assisted walking may offer secondary benefits. Copyright

  11. 3D gait analysis of lower extremity muscle group power in healthy subjects and subacute stroke patients, and task-specific gait interventions in early stroke rehabilitation

    DEFF Research Database (Denmark)

    Brincks, John

    2010-01-01

    Denne ph.d. afhandling omhandler 3D ganganalyse af raske og apopleksipatienter. Formålet med afhandlingen var at estimere referenceværdier for power i et udvalg af underekstremitetens muskelgrupper, samt at estimere ændringer i muskelgruppers power, når ganghastigheden øges blandt raske og apople...

  12. Discriminatory antibacterial effects of calix[n]arene capped silver nanoparticles with regard to gram positive and gram negative bacteria.

    Science.gov (United States)

    Boudebbouze, Samira; Coleman, Anthony W; Tauran, Yannick; Mkaouar, Hela; Perret, Florent; Garnier, Alexandrine; Brioude, Arnaud; Kim, Beomjoon; Maguin, Emmanuelle; Rhimi, Moez

    2013-08-18

    Silver nanoparticles capped with nine different sulphonated calix[n]arenes were tested for their anti-bacterial effects against B. subtilis and E. coli at an apparent concentration of 100 nM in calix[n]arene. The results show the para-sulphonato-calix[n]arenes are active against Gram positive bacteria and the derivatives having sulphonate groups at both para and alkyl terminal positions are active against Gram negative bacteria. The calix[6]arene derivative with only O-alkyl sulphonate groups shows bactericidal activity.

  13. Future-oriented power distribution grid. Handling of up to 50% fluctuating power generation in 2020. Issue paper - working group G1; Denmark. Smart Grid Network; Fremtidssikring af elnettet. Haandtering af op til 50 pct. fluktuerende elproduktion i 2020. Issue paper, arbejdsgruppe G1

    Energy Technology Data Exchange (ETDEWEB)

    Soendergren, C.; Norsk Jensen, A. (Dansk Energi, Frederiksberg (Denmark)); OEstergaard, J. (Danmarks Tekniske Univ.. DTU Elektro, Kgs. Lyngby (Denmark)) (and others)

    2011-07-01

    The Smart Grid Network was established in 2010 by the Danish climate and energy minister tasked with developing recommendations for future actions and initiatives that make it possible to handle up to 50% electricity from wind energy in the power system in 2020. The task of working group 1 of the Smart Grid Network is stated as: ''The group will, building on existing surveys and analyses of structures and constraints in the Danish electricity system 2020, define concrete ideas on the technical and system development needs for the electricity supply system when the goal of intelligent integration of 50 percent power generated by renewable energy must be met. The group should come up with concrete suggestions on how to make the power system future-oriented, such as new network and management architectures, more measuring equipment, optical sensors, and new computer and communications systems that can monitor, control and operate the power system with the aim that the new intelligence can contribute to a reliable and cost-effective power system that can handle the deployment of renewable energy''. The working group has focused on a general description of the whole overall system needs and more specifically on the power grid and its management and control. (LN)

  14. Small Group Research

    Science.gov (United States)

    McGrath, Joseph E.

    1978-01-01

    Summarizes research on small group processes by giving a comprehensive account of the types of variables primarily studied in the laboratory. These include group structure, group composition, group size, and group relations. Considers effects of power, leadership, conformity to social norms, and role relationships. (Author/AV)

  15. The technology of the bearings used in the nuclear power generation system turbine generator units; Technologie des paliers equipant les groupes turbo-alternateurs du parc nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Vialettes, J.M.; Rossato, M. [Service Ensembles de Production, Departement Machines, Direction des Etudes et Recherches, Electricite de France (EDF), 92 - Clamart (France)

    1997-01-01

    A bearing consists of all the stationary part which allow the relative motion in rotation or in translation, of a shaft line. Inside the bearing there is a journal bearing with a metallic anti-friction coating (the babbitt metal). The high power turbine generator unit rotors are supported by smooth transversal journal bearings fed with oil which fills the empty space and runs along the shaft. The technologies used for the bearings and the thrust bearings of the turbine generator units and the various shaft lines of the French CP0/CP1- and CP2/1300 MW-type nuclear power plants are described. The experience feedback is then discussed in terms of the dynamics of the shaft line, i.e. vibrational problems, the influence of the alignment and the babbitt metal incidents. (author) 4 refs., 11 figs.

  16. A homogeneous group of persons with multiple sclerosis seem to use different net joint power strategies to increase gait speed - a pilot study

    DEFF Research Database (Denmark)

    Brincks, John

    2014-01-01

    Background: Major symptoms associated with multiple sclerosis are muscle weakness, fatique and loss of limb coordination, all of which contribute to an unsafe gait. To improve gait function in persons with multiple sclerosis (PwMS) it is essential to determine which problems underlie gait...... in the affected and least affected limb, and both intra- and inter-limb comparisons and associations were made, using non-parametric statistics. Results: Except from the eccentric work by A1-S in both limbs, net joint power increased in hip flexors, hip extensors, knee extensors and plantar flexors in affected...... and least affected limb (from 31% to 135%;plimb increased significantly, and no differences were found in net joint power changes between limbs. Even so, there was a trend towards larger...

  17. Computer-aided identification of polymorphism sets diagnostic for groups of bacterial and viral genetic variants

    Directory of Open Access Journals (Sweden)

    Huygens Flavia

    2007-08-01

    Full Text Available Abstract Background Single nucleotide polymorphisms (SNPs and genes that exhibit presence/absence variation have provided informative marker sets for bacterial and viral genotyping. Identification of marker sets optimised for these purposes has been based on maximal generalized discriminatory power as measured by Simpson's Index of Diversity, or on the ability to identify specific variants. Here we describe the Not-N algorithm, which is designed to identify small sets of genetic markers diagnostic for user-specified subsets of known genetic variants. The algorithm does not treat the user-specified subset and the remaining genetic variants equally. Rather Not-N analysis is designed to underpin assays that provide 0% false negatives, which is very important for e.g. diagnostic procedures for clinically significant subgroups within microbial species. Results The Not-N algorithm has been incorporated into the "Minimum SNPs" computer program and used to derive genetic markers diagnostic for multilocus sequence typing-defined clonal complexes, hepatitis C virus (HCV subtypes, and phylogenetic clades defined by comparative genome hybridization (CGH data for Campylobacter jejuni, Yersinia enterocolitica and Clostridium difficile. Conclusion Not-N analysis is effective for identifying small sets of genetic markers diagnostic for microbial sub-groups. The best results to date have been obtained with CGH data from several bacterial species, and HCV sequence data.

  18. A homogeneous group of persons with multiple sclerosis seem to use different net joint power strategies to increase gait speed - a pilot study

    DEFF Research Database (Denmark)

    Brincks, John

    2014-01-01

    dysfunction. Aims: This pilot study examined changes in net joint power generated or absorbed by hip flexors (H2-S, H3-S), hip extensors (H1-S), hip abductors (H1-F, H2-F, H3-F) knee extensors (K1-S, K2-S, K3-S) and ankle plantar flexors (A1-S, A2-S) bilaterally, when gait speed increased. Methods: Fourteen...... PwMS with an EDSS score median at 2.5 (Inter quartile range=1) participated. The gait patterns were analysed using 3D motion analysis at self-selected and maximum gait speed. The net joint power peaks were measured for H1-S, H2-S, H3-S, H1-F, H2-F, H3-F, K1-S, K2-S, K3-S, A1-S and A2-S...... joint powers in the least affected limb. Moderate to strong correlations (pH2-S (r=0.61) and K3-S (r=0.75) in the affected limb. In least affected limb, correlations (p

  19. A standard description and costing methodology for the balance-of-plant items of a solar thermal electric power plant. Report of a multi-institutional working group

    Science.gov (United States)

    1983-01-01

    Standard descriptions for solar thermal power plants are established and uniform costing methodologies for nondevelopmental balance of plant (BOP) items are developed. The descriptions and methodologies developed are applicable to the major systems. These systems include the central receiver, parabolic dish, parabolic trough, hemispherical bowl, and solar pond. The standard plant is defined in terms of four categories comprising (1) solar energy collection, (2) power conversion, (3) energy storage, and (4) balance of plant. Each of these categories is described in terms of the type and function of components and/or subsystems within the category. A detailed description is given for the BOP category. BOP contains a number of nondevelopmental items that are common to all solar thermal systems. A standard methodology for determining the costs of these nondevelopmental BOP items is given. The methodology is presented in the form of cost equations involving cost factors such as unit costs. A set of baseline values for the normalized cost factors is also given.

  20. Genetic polymorphism investigation of the Chinese Yi minority using PowerPlex® Y23 STR amplification system.

    Science.gov (United States)

    He, GuangLin; Chen, PengYu; Zou, Xing; Chen, Xu; Song, Feng; Yan, Jing; Hou, YiPing

    2017-01-16

    Twenty-three Y-STR loci (DYS576, DYS389I, DYS389 II, DYS448, DYS19, DYS391, DYS481, DYS549, DYS533, DYS438, DYS437, DYS570, DYS635, DYS390, DYS439, DYS392, DYS393, DYS458 DYS456, DYS643, Y-GATA-H4, and DYS385a/b) included in the next-generation PowerPlex® Y23 System were first investigated in 311 unrelated, healthy male individuals from the Yi minority population residing in the Liangshan Yi Autonomous Prefecture, Sichuan, China. A total of 179 alleles and 297 haplotypes were discovered in the Yi group. In total, 285 haplotypes among them were unique, and the remaining 12 haplotypes were observed in two or three individuals. Haplotype discrimination capacity and haplotype diversity were 0.9550 and 0.9989, respectively. Genetic diversity ranged from 0.4550 (DYS437) to 0.9556 (DYS385a/b). Population comparisons between the Yi minority group and 10 Asian meta-populations comprising 58 individual populations were performed. Both multidimensional scaling plots and phylogenetic analyses demonstrated that the genetic structure of the Chinese Yi ethnicity was extremely different compared to Taiwan indigenous inhabitants among 10 Asian meta-populations. Additionally, the genetic structure resemblance of the Yi group was obtained from a geographically close population (Xuanwei Han) or similar language family groups (Thai populations). Besides, our study has demonstrated that the PowerPlex® Y23 System has high polymorphism in a Chinese Yi ethnic population and high discriminatory power for forensic purposes. Population data of the 23 Y-STR obtained from a Yi ethnic population has enriched the Chinese ethnic genetic information.

  1. The Power of Cooperation in International Paleoclimate Science: Examples from the PAGES 2k Network and the Ocean2k Working Group

    Science.gov (United States)

    Addison, J. A.

    2015-12-01

    The Past Global Changes (PAGES) project of IGBP and Future Earth supports research to understand the Earth's past environment to improve future climate predictions and inform strategies for sustainability. Within this framework, the PAGES 2k Network was established to provide a focus on the past 2000 years, a period that encompasses Medieval Climate Anomaly warming, Little Ice Age cooling, and recent anthropogenically-forced climate change. The results of these studies are used for testing earth system models, and for understanding decadal- to centennial-scale variability, which is needed for long-term planning. International coordination and cooperation among the nine regional Working Groups that make up the 2k Network has been critical to the success of PAGES 2k. The collaborative approach is moving toward scientific achievements across the regional groups, including: (i) the development of a community-driven open-access proxy climate database; (ii) integration of multi-resolution proxy records; (iii) development of multivariate climate reconstructions; and (iv) a leap forward in the spatial resolution of paleoclimate reconstructions. The last addition to the 2k Network, the Ocean2k Working Group has further innovated the collaborative approach by: (1) creating an open, receptive environment to discuss ideas exclusively in the virtual space; (2) employing an array of real-time collaborative software tools to enable communication, group document writing, and data analysis; (3) consolidating executive leadership teams to oversee project development and manage grassroots-style volunteer pools; and (4) embracing the value-added role that international and interdisciplinary science can play in advancing paleoclimate hypotheses critical to understanding future change. Ongoing efforts for the PAGES 2k Network are focused on developing new standards for data quality control and archiving. These tasks will provide the foundation for new and continuing "trans-regional" 2k

  2. Power, attraction, and reference in macrolevel social relations: An analysis of closed groups and closed societies based on the psychology of the “Soviet person”

    Directory of Open Access Journals (Sweden)

    Radina Nadezhda K.

    2017-03-01

    Full Text Available In this article the features of social-relationship systems are analyzed based on the data from a sociopsychological empirical study conducted in two stages (2002 and 2014 on a large sample with the help of g. Kelly’s Repertory grid Technique. A. V. Petrovsky’s three-factor interpersonal-relationships model as interpreted for closed groups by M. Yu. Kondratev and the concept of the closed society as described by Karl Popper provide the foundation for the theoretical hypothesis we tested. The empirical data obtained in 2002 came from 391 participants of different ages who were living in provincial towns in the Nizhny Novgorod region. The elderly respondents (232 people had lived almost all their lives under the Soviet regime; the middle-aged respondents (159 people got their education and started their careers in the USSR. Soviet society is considered to be closed because of its authoritarian and collectivist nature, static social structure, and dogmatic ideology. It is argued that both closed societies and closed groups are characterized by a rigid hierarchical social structure, isolation from other systems, and depersonalization of social relations. We have proved that members of a closed group and citizens of a closed society have similar social-relationship matrices.

  3. Reactivity effects in VVER-1000 of the third unit of the kalinin nuclear power plant at physical start-up. Computations in ShIPR intellectual code system with library of two-group cross sections generated by UNK code

    Science.gov (United States)

    Zizin, M. N.; Zimin, V. G.; Zizina, S. N.; Kryakvin, L. V.; Pitilimov, V. A.; Tereshonok, V. A.

    2010-12-01

    The ShIPR intellectual code system for mathematical simulation of nuclear reactors includes a set of computing modules implementing the preparation of macro cross sections on the basis of the two-group library of neutron-physics cross sections obtained for the SKETCH-N nodal code. This library is created by using the UNK code for 3D diffusion computation of first VVER-1000 fuel loadings. Computation of neutron fields in the ShIPR system is performed using the DP3 code in the two-group diffusion approximation in 3D triangular geometry. The efficiency of all groups of control rods for the first fuel loading of the third unit of the Kalinin Nuclear Power Plant is computed. The temperature, barometric, and density effects of reactivity as well as the reactivity coefficient due to the concentration of boric acid in the reactor were computed additionally. Results of computations are compared with the experiment.

  4. Group method of data handling and neral networks applied in monitoring and fault detection in sensors in nuclear power plants; Group Method of Data Handling (GMDH) e Redes Neurais na Monitoracao e Deteccao de Falhas em sensores de centrais nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Bueno, Elaine Inacio

    2011-07-01

    The increasing demand in the complexity, efficiency and reliability in modern industrial systems stimulated studies on control theory applied to the development of Monitoring and Fault Detection system. In this work a new Monitoring and Fault Detection methodology was developed using GMDH (Group Method of Data Handling) algorithm and Artificial Neural Networks (ANNs) which was applied to the IEA-R1 research reactor at IPEN. The Monitoring and Fault Detection system was developed in two parts: the first was dedicated to preprocess information, using GMDH algorithm; and the second part to the process information using ANNs. The GMDH algorithm was used in two different ways: firstly, the GMDH algorithm was used to generate a better database estimated, called matrix{sub z}, which was used to train the ANNs. After that, the GMDH was used to study the best set of variables to be used to train the ANNs, resulting in a best monitoring variable estimative. The methodology was developed and tested using five different models: one Theoretical Model and four Models using different sets of reactor variables. After an exhausting study dedicated to the sensors Monitoring, the Fault Detection in sensors was developed by simulating faults in the sensors database using values of 5%, 10%, 15% and 20% in these sensors database. The results obtained using GMDH algorithm in the choice of the best input variables to the ANNs were better than that using only ANNs, thus making possible the use of these methods in the implementation of a new Monitoring and Fault Detection methodology applied in sensors. (author)

  5. Coronary heart disease risk assessment and characterization of coronary artery disease using coronary CT angiography: comparison of asymptomatic and symptomatic groups

    Energy Technology Data Exchange (ETDEWEB)

    Hwang, Y. [Department of Radiology, School of Medicine, Ewha Womans University, Seoul (Korea, Republic of); Kim, Y., E-mail: yookkim@ewha.ac.k [Department of Radiology, School of Medicine, Ewha Womans University, Seoul (Korea, Republic of); Chung, I.-M. [Division of Cardiology in Department of Internal Medicine, School of Medicine, Ewha Womans University, Seoul (Korea, Republic of); Ryu, J.; Park, H. [Department of Preventive Medicine, School of Medicine, Ewha Womans University, Seoul (Korea, Republic of)

    2010-08-15

    Aim: To evaluate the prevalence of coronary artery disease (CAD) in relation to risk of coronary heart disease (CHD) and assess plaque characteristics from coronary computed tomography (CT) angiography in asymptomatic and symptomatic patients. Materials and methods: Three hundred and ninety consecutive patients [asymptomatic group, n = 138; symptomatic group (atypical or non-anginal chest pain), n = 252] were retrospectively enrolled. They were subsequently classified into three CHD risk categories, based on the National Cholesterol Education Program guidelines, and 10 year risks of coronary events were calculated using Framingham risk score. CT was evaluated for stenosis, plaque composition, and coronary calcium scores. Results: CAD was observed in 42% of the asymptomatic group and 62% of the symptomatic group. In the former, the prevalence of CAD in low-, moderate- and high-risk subgroups was 21.4, 47.4 and 65%, respectively, and was 33.3, 74.4, and 72.4% in the symptomatic group. Framingham 10-year risks of coronary events were significantly higher in patients with CAD than in normal participants, and receiver operating characteristics curves showed that discriminatory power was poor in the asymptomatic group and symptomatic men, and good in symptomatic women. Of the participants in the asymptomatic group, 12% exhibited only non-calcified plaques and of the symptomatic group, 7% exhibited only non-calcified plaques. The coronary calcium score was significantly higher for significant stenosis than for non-significant stenosis in both groups. Conclusions: The prevalence of CAD was not negligible even in subgroups with low-to-moderate CHD risk. Additionally, the Framingham risk score was effective for predicting CAD only in symptomatic women. Coronary calcium scores correlated with significant stenosis; however, a sizeable percentage of both groups had only non-calcified plaques.

  6. New rht-Type Metal-Organic Frameworks Decorated with Acylamide Groups for Efficient Carbon Dioxide Capture and Chemical Fixation from Raw Power Plant Flue Gas.

    Science.gov (United States)

    Guo, Xiangyang; Zhou, Zhen; Chen, Cong; Bai, Junfeng; He, Cheng; Duan, Chunying

    2016-11-23

    The combination of carbon dioxide capture and chemical fixation in a one-pot process is attractive for both chemists and governments. The cycloaddition of carbon dioxide with epoxides to produce cyclic carbonates is an atomic economical reaction without any side products. By incorporating acylamide to enhance the binding affinity toward CO2, new rht-type metal-organic frameworks (MOFs) with (3, 28) and (3, 24) connected units were constructed. Zn-NTTA with two types of dinuclear paddlewheel building blocks-{Zn2(OOC(-))4} and {Zn2(OOC(-))3}. The high uptake of CO2 (115.6 cm(3)·g(-1)) and selectivity over N2 (30:1) at 273 K indicated that these MOFs are excellent candidates for postcombustion CO2 isolation and capture. The MOFs feature high catalytic activity, rapid dynamics of transformation and excellent stability with turnover number (TON) values up to 110 000 per paddlewheel unit after 5 × 6 rounds of recyclability, demonstrating that they are promising heterogeneous catalysts for CO2 cyclo-addition to value-added cyclic carbonates. The cycloaddition of epoxides with wet gases demonstrated that the catalyst activity was not affected by moisture, and the indices of the PXRD patterns of the bulk samples filtered from the catalytic reaction revealed that the crystallinities were maintained. The combination of the selective capture and catalytic transformation in one-pot enables the use of a negative-cost feedstock-raw power plant flue gas without any separation and purification-revealing the broad prospects of such MOFs for practical CO2 fixation in industry.

  7. Group control strategy and realization method of multi-inverter for photovoltaic power generation network%多逆变器光伏发电网络群控策略及实现方法

    Institute of Scientific and Technical Information of China (English)

    胡克用; 胥芳; 艾青林; 徐红伟; 欧阳静

    2016-01-01

    针对自然环境中阴雨天会大大降低光伏面板的发电量,使得光伏阵列的输出功率与逆变器额定功率无法匹配,从而引起光伏发电系统总功率大幅下降的问题,采用分布式光伏阵列及逆变器的群控方法,通过开关矩阵将光伏阵列与逆变器相连,形成分布式光伏阵列及逆变器拓扑网络结构,并详细阐述了该拓扑网络结构的工作原理与工作机制。研究了该网络的群控系统,并提出相应的自适应聚类算法,实现多逆变器光伏发电网络的群控管理。最后对整个网络结构系统进行了仿真分析及试验验证,结果表明,在不利于光伏发电的恶劣天气条件中,该控制策略可对不同逆变器的输入功率进行优化匹配,从而提高整个光伏发电系统的发电效率。%The power generation of photovoltaic panels is greatly reduced during the cloudy and rainy days in natural environment,the output power of PV array and the rated power of inverter can not be matched,and it will cause the total power of photovoltaic system decrease sharply.This thesis adopted distributed photovoltaic array and group control method of the inverters.The photovoltaic array and the inverters were connected by the switch matrix,and formed a distributed topology network structure of photovoltaic array and inverters.While,it described the working principle and working mechanism of the network topology structure.At the same time it analyzed the constraint con-ditions of electrical parameters from the point of mathematics.Study on the group control of the network,in order to cope with such topology,it put forward the corresponding adaptive clustering algorithm to realize the switching control of matrix and optimize the structure of PV array,thus fulfill the group control management of multi-inverters photovoltaic power network.The whole network structure of the system was validated by the simulation and experiment;the results

  8. The Effect of Leader Emotional Intelligence on Group Performance and Employee Attitude:Mediating Effect of Justice Climate and Moderating Effect of Group Power Distance%领导情绪智力对团队绩效和员工态度的影响--公平氛围和权力距离的作用

    Institute of Scientific and Technical Information of China (English)

    容琰; 隋杨; 杨百寅

    2015-01-01

    Recently, increasing numbers of researchers have shown interests in leader emotional intelligence. Even though some of them are optimistic on the relation between leader emotional intelligence and team performance, critics still remain and mixed results are found. What’s more, the mechanisms and constrains that explain the effectiveness of leader emotional intelligence, especially at group level, are relatively unexplored. We address those research gaps by exploring the effect of leader emotional intelligence on leader-member interaction in the perspective of justice climate and group power distance. We also synthesize the performance and attitude at the group level to further examine the influence of leader emotional intelligence in working groups. Justice climate is a suitable reflection of leader-member interaction while emotional intelligence underlines leaders’ social skills. So that, exploring the effectiveness of leader emotional intelligence in the perspective of justice climate grasps the essential characteristic of emotional intelligence. On the other hand, group power distance is a contextual factor that affects the influence of leaders on group outcomes, thus it constrains the extent to which leader emotional intelligence could be effective. The sample for this study consisted of 74 working groups. We used the ability model to define emotional intelligence because it showed better psychometric properties. The questionnaires for leaders included emotional intelligence, group performance, and organizational citizenship behavior, while the questionnaires for group members included procedural justice, interactional justice, satisfaction and organizational commitment. Justice, power distance and four dependent variables were aggregated to group level. Multiple mediator model, moderated mediation and bootstrapping were used in the analysis. The result showed significantly positive relations between leader emotional intelligence and group level outcomes

  9. Small scale power production

    Energy Technology Data Exchange (ETDEWEB)

    Muoniovaara, M. [IVO International Ltd, Vantaa (Finland)

    1996-12-31

    IVO International is a major constructor of biomass power plants in Finland and abroad. As a subsidiary of Imatran Voima Oy, the largest power utility in Finland, it has designed and constructed ten power plants owned by IVO Group or others capable of burning biomasses. Sizes of the plants vary from the world`s largest condensing peat-fired power plant of 155 MWe to a 6 MWe combined heat and power producing unit. This article describes the biomass power plants designed and constructed by IVO Group 3 refs.

  10. Free-riding, fairness and the rights of minority groups in exemption from mandatory childhood vaccination.

    Science.gov (United States)

    May, Thomas; Silverman, Ross D

    2005-01-01

    The authority of government to require participation in mandatory childhood vaccination programs may not target specific groups for either participation or exemption on a discriminatory basis. This poses difficulties when allowing religious or philosophical exemptions to mandatory vaccination, because certain groups are more likely to appeal for exemption. Avoiding loss of herd immunity, then, may require either discrimination against these groups by disallowing an exemption option that is available to others, or by denying the good of an exemption option to the entire population because of the action of certain groups. To avoid this unacceptable choice, steps must be taken now to more stringently enforce exemption requirements.

  11. Energy-Efficient Source Authentication for Secure Group Communication with Low-Powered Smart Devices in Hybrid Wireless/Satellite Networks

    Directory of Open Access Journals (Sweden)

    Baras JohnS

    2011-01-01

    Full Text Available We describe a new class of lightweight, symmetric-key digital certificates called extended TESLA certificates and a source authentication protocol for wireless group communication that is based on the certificate. The certificate binds the identity of a wireless smart device to the anchor element of its key chain; keys from the chain are used for computing message authentication codes (MACs on messages sourced by the device. The authentication protocol requires a centralized infrastructure in the network: we describe the protocol in a hybrid wireless network with a satellite overlay interconnecting the wireless devices. The satellite is used as the Certificate Authority (CA and also acts as the proxy for the senders in disclosing the MAC keys to the receivers. We also design a probabilistic nonrepudiation mechanism that utilizes the satellite's role as the CA and sender proxy. Through analysis, we show that the authentication protocol is secure against malicious adversaries. We also present detailed simulation results that demonstrate that the proposed protocol is much cheaper than traditional public key-based authentication technologies for metrics like processing delay, storage requirements, and energy consumption of the smart devices.

  12. Powerful H2 Line Cooling in Stephan’s Quintet. II. Group-wide Gas and Shock Modeling of the Warm H2 and a Comparison with [C II] 157.7 μm Emission and Kinematics

    Science.gov (United States)

    Appleton, P. N.; Guillard, P.; Togi, A.; Alatalo, K.; Boulanger, F.; Cluver, M.; Pineau des Forêts, G.; Lisenfeld, U.; Ogle, P.; Xu, C. K.

    2017-02-01

    We map for the first time the two-dimensional H2 excitation of warm intergalactic gas in Stephan's Quintet on group-wide (50 × 35 kpc2) scales to quantify the temperature, mass, and warm H2 mass fraction as a function of position using Spitzer. Molecular gas temperatures are seen to rise (to T > 700 K) and the slope of the power-law density–temperature relation flattens along the main ridge of the filament, defining the region of maximum heating. We also performed MHD modeling of the excitation properties of the warm gas, to map the velocity structure and energy deposition rate of slow and fast molecular shocks. Slow magnetic shocks were required to explain the power radiated from the lowest-lying rotational states of H2, and strongly support the idea that energy cascades down to small scales and low velocities from the fast collision of NGC 7318b with group-wide gas. The highest levels of heating of the warm H2 are strongly correlated with the large-scale stirring of the medium as measured by [C ii] spectroscopy with Herschel. H2 is also seen associated with a separate bridge that extends toward the Seyfert nucleus in NGC 7319, from both Spitzer and CARMA CO observations. This opens up the possibility that both galaxy collisions and outflows from active galactic nuclei can turbulently heat gas on large scales in compact groups. The observations provide a laboratory for studying the effects of turbulent energy dissipation on group-wide scales, which may provide clues about the heating and cooling of gas at high z in early galaxy and protogalaxy formation.

  13. Language and Group Identity.

    Science.gov (United States)

    Milroy, Leslie

    1982-01-01

    Explores the tension between the manner in which intergroup language differences are used to symbolize group membership and the manner in which they mirror and reinforce social class and power distinctions. (EKN)

  14. Report about the purchase of electric power by local authorities. Report from the expertise group (August 11, 2004 version); Rapport sur l'achat d'electricite par les collectivites locales. Rapport du groupe d'expertise (version du 11 aout 2004)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    The coexistence of both a regulated and a free gas and electricity market leads to a particular situation where public people can launch a call for bids procedure and stop it at any time, in particular if the de-regulated price becomes greater than the regulated one. This report from a working group of experts presents: the electricity purchase and competition (identification of sites concerned by the enforcement of competition and public markets right, towards the abandonment of the 'eligibility declaration' procedure); the general saving linked with power purchase contracts of eligible clients (synopsis of power demand contracts, grid access contracts, power supply contracts and balance contracts); enforcement of the public markets law to the electricity purchase for the supply of eligible town or inter-town sites, and intervention of public cooperation companies in the regrouping of these purchases (determination of market entering modalities and of the contractual framework applicable to these power purchases, advantage and modalities of purchases regrouping under a public cooperation company); document types; glossary. (J.S.)

  15. Optimization of Hybrid Power Trains by Mechanistic System Simulations Optimisation de groupes motopropulseurs électriques hybrides par simulation du système mécanique

    Directory of Open Access Journals (Sweden)

    Katrašnik T.

    2013-05-01

    écifiques au domaine et sur un couplage inter-domaines cohérent ultérieur des flux. En outre, une structure de calculs efficace permettant la simulation du transport d’espèces gazeuses actives et passives est introduite de manière à combiner l’efficacité des calculs à la nécessité d’une modélisation du transport des polluants clans le circuit des gaz. L’applicabilité et la versatilité du modèle de simulation au niveau mécanique sont présentées au moyen d’analyses des phénomènes transitoires provoqués par l’interdépendance élevée des sous-systèmes, c’est-à-dire les domaines. Les résultats obtenus pour les véhicules hybrides sont comparés â ceux obtenus pour les véhicules conventionnels afin de mettre l’accent sur les différences des régimes opératoires de composants particuliers inhérents à une topologie particulière du groupe motopropulseur.

  16. Intelligence in the power grid and services to the consumers. Issue paper - working group 4; Denmark. Smart Grid Network; Intelligens i el-nettet og serviceydelser til forbrugerne. Issue paper, arbejdsgruppe 4

    Energy Technology Data Exchange (ETDEWEB)

    Jonsen, B.O. (Solar Danmark A/S, Vejen (Denmark)); Hauge, B. (IT-Branchen, Copenhagen (Denmark)); Strunge, C. (Energinet.dk, Fredericia (Denmark)) (and others)

    2011-07-01

    The Smart Grid Network was established in 2010 by the Danish climate and energy minister tasked with developing recommendations for future actions and initiatives that make it possible to handle up to 50% electricity from wind energy in the power system in 2020. The task of working group 4 was to investigate what it takes to involve consumers in smart grid and how to create good conditions for new services related to smart grid. Against this background, the working group agreed the following recommendations: 1) Enhance consumer engagement. A prerequisite for electricity customers becoming involved in smart grid is that they have awareness and knowledge about the smart grid and their own possibilities for action in relation thereto. Therefore it is important that concepts such as smart grid and flexible electricity consumption gradually become popular among electric customers; 2) Minimize the risk. In order to promote electric customers' and other stakeholders' participation in the smart grid, the risk of this participation must be minimized. It is therefore recommended to enhance the skills of the professionals and to establish a common framework for security; 3) Make it easier to create new services. Part of the potential of smart grid can be realized through new services such as delivery of flexible electricity consumption for electric cars and heat pumps and the resale of local power generation at the customer. To facilitate the conditions for these services, the working group recommends that better access to relevant data is created, that the interoperability of smart grid solutions is strengthened, that requirements for buildings are made, that it is made easier to be an aggregator, and that test and inspiration laboratories for small and medium enterprises in the smart grid area are established. (LN)

  17. Estudio de estabilidad en un sistema eléctrico con grupos electrógenos; Stability Study of Power Electric System with Groups of Diesel or Fuel Engine Generator

    Directory of Open Access Journals (Sweden)

    Juan G Boza Valerino

    2011-02-01

    Full Text Available En la estructura del sistema eléctrico de Cuba se está produciendo un significativo cambio, con motivode la instalación masiva de los grupos electrógenos como nuevas fuentes de generación, próximas a losconsumidores. Esto obliga a realizar un análisis de los regímenes estacionarios y transitorios para diferentesescenarios del nivel de carga del sistema. Se requiere entonces conocer los valores de los principalesparámetros y la influencia de este tipo de generadores en el comportamiento de un sistema eléctrico.  In this work, taking in to account, the installation of the new generators groups of diesel engine generatorburning fuel oil and/or diesel fuel in the electric power system of Cuba, near of the loads center thestudy of stationary and transient operation of power electric system requiere to know the range of parametersof the differents elements.

  18. 多Agent的群体组织权力划分与协调机制研究%Research on Divide for Groups OrganiZations Power and Coordinate Mechanism of Multi-agent

    Institute of Scientific and Technical Information of China (English)

    李凡长

    2001-01-01

    Theory and technology of agent, specialy theory and technology of multi-agent, for analyse and design and implement of distributed open system furnishes fresh evidence. So far, agent is divided into intelligence agent and multi-agent and agent oriented programming, which is depend on each other for existence.This papers focal point is research structure of groups organizations of multi-agent, the principle of organiZations,of intelligence agent, principle of power distribute,principle of power implement and coordinate work mechanism of agent of under the leadership of leading agent are proposed.%Agent的理论、技术,特别是多Agent的理论、技术,为分布式开放系统的分析、设计和实现提供了一个崭新的途径。目前,对Agent的研究大致分为智能Agent,多Agent系统(multi-agent system,简称MAS)和面向Agent的程序设计(agent oriented programming,简称AOP)这3个相互关联的方面。对多Agellt系统的群体组织结构进行深入研究,给出Agent的组织原则,权力分配原则,权力实施原则和在领导Agent的权力作用下进行协作工作的机制。

  19. Approaches to Multiple Attribute Group Decision Making Based on Triangular Fuzzy Number Intuitionistic Fuzzy Power Geometric Operator%基于模糊数直觉模糊PG算子的多属性决策方法

    Institute of Scientific and Technical Information of China (English)

    周晓辉; 姚俭; 袁清华

    2014-01-01

    针对决策信息为三角模糊数直觉模糊数(TFNIFN)且属性间存在相互关联的多属性群决策(MAGDM)问题,提出了一种基于三角模糊数直觉模糊 PG(TFNIFPG)算子的决策方法。首先,基于TFNIFN的运算法则和PG(Power Geometric)算子,定义了TFNIFPG算子。然后,研究了该算子的一些性质,建立基于TFNIFPG算子的 MAGDM模型,结合排序方法进行决策。最后通过某项目投资算例验证了该算子的有效性与可行性。%With respect to the multiple attribute group decision-making(MAGDM)problem,a method based on triangu-lar fuzzy number intuitionistic fuzzy powergeometric (TFNIFPG)operator was presented.The attribute values of MAGDM are in the form of triangular fuzzy number intuitionistic fuzzy numbers (TFNIFN),and the attributes are associated with each oth-er.Firstly,according to the TFNIFN’s operational laws and power geometric (PG)operator,TFNIFPG operator was defined. Then the related properties were researched and a multiple attribute decision group model was constructed based on TFNIFPG operator.The model used sort methods to make decision.Finally,an illustrative example of proj ect investment was proposed to demonstrate the effectiveness and feasibility of the proposed operator.

  20. Identification of Planting Area and Varieties of Rapeseeds by Infrared Spectroscopy Combing with Stepwise Discriminatory Analysis%红外光谱和逐步判别分析法应用于油菜籽的研究

    Institute of Scientific and Technical Information of China (English)

    刘飞; 杨春艳; 谢建新

    2016-01-01

    The planting area and varieties of rapeseeds were studied based on Fourier transform infrared spectroscopy (FTIR) combining with stepwise discriminatory analysis.The FTIR of 188 rapeseed skin samples of 17 varieties from 5 planting areas was obtained and processed by OMINC 8.0 software.In order to distinguish their planting area and variety,5 spectra in the range of 1 800~950 cm-1 for each variety from each producing area were selected as training samples arbitrarily with Fisher line-ar discriminatory criterion which was used to build model by means of stepwise discriminatory analysis by SPSS20.0 software. All the five discriminatory models based on Wilks’Lambda,Unexplained variance,Mahalanobis distance,Smallest F value and Rao’s v can distinguish variety and planting area well,and the best one for identifying variety was on the base of Wilks’Lambda, which yielded correct rate of 97.9%,and the best one for distinguishing planting area was on the base of Unexplained variance with a correct rate of 98.4%.The results showed that discriminatory analysis based on the infrared spectrum of rapeseed skin is an efficient method for identification of rapeseed variety and planting area.%用傅里叶变换红外光谱(FTIR)和逐步判别分析法对油菜籽的品种和产地进行鉴别研究。测试了来自5个产地17个油菜籽品种188份油菜籽皮样品的红外光谱,按产地和品种选择训练样本,每个品种选择5份为训练样本,剩下的作为测试样本,选择1800~950 cm-1范围的光谱信息,在 SPSS20.0的判别分析模块中采用逐步法,Fisher线性判别准则,分别建立油菜籽品种和产地的鉴别模型来判别样品的品种和产地;比较了逐步判别分析中五种筛选建模信息的算法所建立的模型对实验样品品种和产地的鉴别效果。基于油菜籽皮红外光谱信息的品种判别分析,五种筛选变量的算法所建立的模型都能较好的识别油菜籽的品种,“Wilks’Lambda”

  1. 简单系统中感应电动机群稳态运行状态的分析%Steady Operation State Analysis of an Induction Motor Group in a Simple Power System

    Institute of Scientific and Technical Information of China (English)

    吴浩; 郭瑞鹏; 韩祯祥; 曹一家

    2011-01-01

    Based on T-type equivalent circuit, the bifurcation of single induction motor at steady operation state is analyzed and it is found that motor slip at bifurcation point depends on the parameters of motor and its load only, while voltage at bifurcation point further depends on the initial state. By studying the relationship between motor initial slip and motor operation indexes, the rational distribution range of initial slip is derived. Taking the single load and infinite bus system as the studying object, the analysis method for steady operation state of induction motor group is proposed. Under the condition of arithmetic series distributed initial slip and equal initial motor power, the steady operation states of induction motor group are calculated. Their relationships with system operation condition and stalled motor number are studied. Finally, the relation of these analyzed results with the expected steady states of induction motor group or single induction motor under certain stochastic condition are studied. The studied results show that the arithmetic series distributed initial slip and equal initial power approximate both the results of motor group with uniform distributed initial slip and uniform dispatched initial power, and the results of single motor with uniform distributed initial slip.%基于感应电动机的T形等值电路,分析了单台电动机稳态运行状态的分岔情况,发现了分岔点的滑差仅依赖于电动机及其负载的参数,而分岔点电压还与初始状态有关;研究了感应电动机初始滑差与运行指标的关系,获得了初始滑差的合理分布范围.以单负荷无穷大系统为研究对象,提出了感应电动机群稳态运行状态的分析方法;在初始滑差呈等差数列、初始功率相等的条件下,分析了感应电动机群稳态运行状态与系统运行条件、电动机堵转台数等的关系.最后,建立了所得分析结果与感应电动机群及单台电动机在一定随

  2. The application effect of interpersonal communication group mental training on high-powered battleplan pilots%高性能战机飞行员人际交往团体心理训练的应用效果研究

    Institute of Scientific and Technical Information of China (English)

    杨柳; 彭文华; 江涛; 徐珀; 刘娟; 彭飞; 张焱; 张宜爽; 宋华淼

    2014-01-01

    目的 探讨人际交往团体心理训练在高性能战机飞行员中的应用效果,为后续研究和推广应用提供依据.方法 以80名现役高性能战机飞行员为研究对象,按照随机数字法分为干预组(n=50)和对照组(n=30),干预组接受5个单元的人际交往团体心理训练,对照组进行普通的心理健康教育和放松练习,训练前后采用人际关系综合诊断量表(DIRS)、症状自评量表(SCL-90)、自我和谐量表(SCCS)分别对两个组进行施测,半年后使用团体心理训练效果评估表对干预组进行随访.结果 人际交往团体心理训练后结果如下:(1)与对照组及自身训练前相比,干预组的DIRS各因子分值[(3.07±1.26)分,(3.31±1.24)分,(1.92±0.89)分,(3.01±1.14)分,(11.83±3.95)分]均有明显降低,差异有统计学意义(t=2.27~4.76,P<0.05,P<0.01),SCL-90的躯体化[(1.27±0.33)分]、强迫[(1.54±0.35)分]、人际关系[(1.47±0.42)分]、抑郁[(1.45±0.36)分]、焦虑[(1.34±0.51)分]、恐怖[(1.25±0.41)分]、总均分[(1.34±0.31)分]和阳性项目数分值[(23.98±15.46)分]均有明显降低,差异有统计学意义(t=2.97~4.62,P<0.01),SCCS各因子分值[(33.87±7.35)分,(25.71±6.94)分,(12.65±3.78)分,(76.81±13.35)分]均有明显降低,差异有统计学意义(t=4.52~6.81,P<0.01);(2)人际交往团体心理训练半年后,对于设计的5个训练单元飞行员感觉帮助最大的是“相亲相爱”(90%),最满意的是“知你知我”(98%).结论 人际交往团体心理训练可以有效地提升高性能战机飞行员处理人际关系的能力,是一种有效的、受欢迎的心理训练方式.%Objective To explore the application effect of interpersonal communication group mental training on high-powered battleplan pilots for providing basis on further studies.Methods 80 high-powered battle plan pilots were selected and divided into 2 groups by random number:the experimental group (n=50) and the control group (n

  3. Power, heat and cooling production for a group of buildings (CHCP); Integrerade loesningar foer produktion av kraft, vaerme och kyla (CHCP) i grupper av byggnader med el-, vaerme- och kylbehov

    Energy Technology Data Exchange (ETDEWEB)

    Nelson, Corfitz [Svenskt Gastekniskt Center AB, Malmoe (Sweden); Bjurstroem, Henrik; Cronholm, Lars-Aake; Forsberg, Maya [AaF-Energi och Miljoe AB, Stockholm (Sweden)

    2005-04-01

    Small-scale production and distribution of power, heat and cooling (CHCP) for a group of buildings is described in this report on a general level. Possible system solutions are identified and a summary of the state-of-the-art is provided. Costs have been compared for different system solutions using a fictitious group of buildings in a case study. CHCP (Combined Heat, Cooling and Power) is an acronym used for a compact cogeneration unit (CHP) that also provides cooling, where cooling may be produced using an absorption cooling machine. The advantage of heat-driven cooling process combined with a cogeneration unit offers is an increase of the annual number of hours during which the cogeneration is operated. This should lead to an increased competitiveness for small-scale cogeneration also in Sweden, which should become even better if the price for electricity continues to increase. Systems with cogeneration and cooling are often associated with the concept of 'distributed generation' of electricity and with units in single buildings such as hotels, hospitals, offices, shopping centers etc. They could also be considered for groups of buildings connected to a small distribution network for district heating, and district cooling. Both steam and hot water are possible energy carriers. The focus of the study was small-scale cogeneration units in the range 0,1 to 2 MW{sub e} with natural gas as fuel. For the sake of the analysis of profitability and of investment, a fictitious area has been defined with four buildings: two hotels, an office and a shopping centre. The maximum total heat and cooling loads of this area are 8 MW heat and 3.5 MW cooling. The alternatives to heat-only boilers and electric chillers in each building studied were based on piping networks. The results from the calculations show that local production of electric power, heat and cooling is possible in buildings and areas with large energy consumption. With prices and assumptions as in the

  4. Upgraded Coal Interest Group

    Energy Technology Data Exchange (ETDEWEB)

    Evan Hughes

    2009-01-08

    The Upgraded Coal Interest Group (UCIG) is an EPRI 'users group' that focuses on clean, low-cost options for coal-based power generation. The UCIG covers topics that involve (1) pre-combustion processes, (2) co-firing systems and fuels, and (3) reburn using coal-derived or biomass-derived fuels. The UCIG mission is to preserve and expand the economic use of coal for energy. By reducing the fuel costs and environmental impacts of coal-fired power generation, existing units become more cost effective and thus new units utilizing advanced combustion technologies are more likely to be coal-fired.

  5. 2010 Chemical Working Group Status

    Science.gov (United States)

    Reid, Concha M.

    2010-01-01

    The Steering Group for the Interagency Advanced Power Group (IAPG) held their business meeting on November 30-December 1st in McLean, Virginia. Status reports were presented from each of the IAPG's Working Groups. These charts contain a brief summary of the IAPG Chemical Working Group's activities during 2010 and its plans for 2011.

  6. Group X

    Energy Technology Data Exchange (ETDEWEB)

    Fields, Susannah

    2007-08-16

    This project is currently under contract for research through the Department of Homeland Security until 2011. The group I was responsible for studying has to remain confidential so as not to affect the current project. All dates, reference links and authors, and other distinguishing characteristics of the original group have been removed from this report. All references to the name of this group or the individual splinter groups has been changed to 'Group X'. I have been collecting texts from a variety of sources intended for the use of recruiting and radicalizing members for Group X splinter groups for the purpose of researching the motivation and intent of leaders of those groups and their influence over the likelihood of group radicalization. This work included visiting many Group X websites to find information on splinter group leaders and finding their statements to new and old members. This proved difficult because the splinter groups of Group X are united in beliefs, but differ in public opinion. They are eager to tear each other down, prove their superiority, and yet remain anonymous. After a few weeks of intense searching, a list of eight recruiting texts and eight radicalizing texts from a variety of Group X leaders were compiled.

  7. Power Outages

    Science.gov (United States)

    ... Thunderstorms & Lightning Tornadoes Tsunamis Volcanoes Wildfires Main Content Power Outages This page provides basic safety tips and ... during and after a power outage. Before a Power Outage Build or restock your emergency preparedness kit , ...

  8. Homogeneous grouping of residential users of electric power in accordance with the variables that affect the consumption; Agrupamientos homogeneos de usuarios residenciales de energia electrica en funcion de las variables que impactan el consumo

    Energy Technology Data Exchange (ETDEWEB)

    Campero Littlewood, E.; Romero Cortes, J. [Departamento de Energia, Universidad Autonoma Metropolitana - Unidad Azcapotzalco, Mexico, D. F. (Mexico)

    1997-12-31

    This paper presents the results of the correlation analysis of the monthly consumption of electric power and the capacities in watts of the electric household appliances and domestic lighting performed in a sample of users of the residential tariff. To carry out this task, the information obtained in the answers to the inquiry applied to a group of dwellings, was used (the results of the inquiry are presented in another paper of this Seminar). The correlation variables were obtained from the nominal capacities or through the actual measurements of the energy consumption of the electric household appliances similar to the ones found in the visited homes. At the end of this paper the result of the application of the cluster analysis technic to obtain homogeneous groups of users, is presented, so as to be in position of estimating the shape of the hourly demand curve by means of the recording of the demand (watts) of a small sample of users. [Espanol] En este articulo se presenta el resultado de correlacion del consumo mensual de energia electrica y las capacidades en watts de los electrodomesticos e iluminacion realizado a una muestra de usuarios de tarifa residencial. Para este trabajo se utilizo la informacion obtenida en las respuestas de una encuesta aplicada en un conjunto habitacional (los resultados de la encuesta se presentan en otro articulo en este Seminario). Las variables de la correlacion se obtuvieron a partir de las especificaciones de capacidades o a traves de mediciones en electrodomesticos similares a los encontrados en los hogares. Al final se presenta el resultado de la aplicacion de la tecnica de formacion de agrupamientos `Cluster Analysis` para obtener grupos homogeneos de usuarios, de forma que se pueda estimar el perfil de demanda electrica mediante el registro de la demanda (watts) de una pequena muestra de usuarios.

  9. Wind Power

    OpenAIRE

    Makhalas, Kharsan Al; Alsehlli, Faisal

    2015-01-01

    This Bachelor thesis has been written at the Blekinge Institute of Technology. This thesis concentrates on the wind power and their components, also the large wind farm is studied. The electrical power is generated by using the power in wind to drive a wind turbine to produce mechanical power. This mechanical power can be converted into electrical power by using electrical induction generators. There are two types of the wind turbines, the horizontal axis and vertical axis wind turbine, where...

  10. The Green Stamp in Power Supply Contracts - A proposal for the Brazilian Electricity Market

    Energy Technology Data Exchange (ETDEWEB)

    Estrocio, Joao Paulo

    2010-09-15

    The insertion of a certification mechanism for discriminatory energy supply contracts aiming to make it possible to contract exclusively clean and renewable energy is presented. With the increasing interest for sustainability and carbon emissions reduction, there's a growing demand for clean energy reflected in people's choices for cleaner products. Electricity in a power grid, however, is result of a set of sources or plants, and its operation or dispatch. A proposal for clean energy contracts is presented, providing the market and the clients with the ability to choose to buy exclusively renewable energy through the grid.

  11. Pragmatic power

    CERN Document Server

    Eccles, William

    2008-01-01

    Pragmatic Power is focused on just three aspects of the AC electrical power system that supplies and moves the vast majority of electrical energy nearly everywhere in the world: three-phase power systems, transformers, and induction motors. The reader needs to have had an introduction to electrical circuits and AC power, although the text begins with a review of the basics of AC power. Balanced three-phase systems are studied by developing their single-phase equivalents. The study includes a look at how the cost of ""power"" is affected by reactive power and power factor. Transformers are cons

  12. Toleration, Groups, and Multiculturalism

    DEFF Research Database (Denmark)

    Lægaard, Sune

    2014-01-01

    to the political and social relationship between the subject and the objects of toleration. Finally, toleration is often argued to be a normative requirement on the basis of the way it affects the object or receiver of toleration, e.g. on the basis of the good of or right to freedom from non-interference which......The chapter considers how groups might be relevant as objects of policies of toleration and the different senses 'group' might have in relation to questions of toleration. The chapter argues that groups can be relevant to toleration in several different ways as objects of toleration. Toleration...... is routinely defined as involving an objection component, a power requirement and an acceptance component. The objection and acceptance components refer to reasons or dispositions of the subjects of toleration, e.g. public authorities deciding how to act in relation to groups. The power condition refers...

  13. Politics, power, and birth.

    Science.gov (United States)

    Tillett, Jackie

    2011-01-01

    Politics is the process and method of decision making for individuals and groups. Politics may define the power relationships between women and their healthcare providers. Politics may shape the experience for the woman. Nurses and birthing women can learn to negotiate the politics and power relationships surrounding the birth experience.

  14. Group morphology

    NARCIS (Netherlands)

    Roerdink, Jos B.T.M.

    2000-01-01

    In its original form, mathematical morphology is a theory of binary image transformations which are invariant under the group of Euclidean translations. This paper surveys and extends constructions of morphological operators which are invariant under a more general group TT, such as the motion group

  15. Report of the South Texas Project Allegations Review Team. Docket Nos. 50-498 and 50-499, Houston Lighting and Power Company et al.

    Energy Technology Data Exchange (ETDEWEB)

    Kokajko, L.; Skay, D.; Wang, H.; Murphy, D. [Nuclear Regulatory Commission, Washington, DC (United States)

    1995-03-01

    This report provides the results of the South Texas Project Allegations Review Team of the US Nuclear Regulatory Commission. This team was formed to obtain and review allegations from individuals represented by three attorneys who had contacted Congressional staff members. The allegers were employed in various capacities at South Texas Project Electric Generating Station, licensed by Houston Lighting and Power Company, et al.; therefore, the allegations are confined to this site. The South Texas Project Allegations Review Team reviewed, referred, and dispositioned concerns related to discriminatory issues (harassment and intimidation), falsification of records and omission of information, and various technical issues. The team was able to substantiate certain technical issues of minor safety significance or regulatory concern at the South Texas Project facility, but it did not find widespread discriminatory practices such as harassment and intimidation.

  16. COGNITIONS AND BEHAVIOR IN A HIERARCHY - MULDERS POWER THEORY REVISITED

    NARCIS (Netherlands)

    WILKE, HAM

    1992-01-01

    In this study, Mulder's power theory consisting of the power distance reduction tendency (PDR) of less powerful group members towards more powerful others, and the power distance enlargement tendency (PDE) of more powerful group members towards less powerful others, is investigated. In particular, t

  17. Statistical power in parallel group point exposure studies with time-to-event outcomes: an empirical comparison of the performance of randomized controlled trials and the inverse probability of treatment weighting (IPTW) approach.

    Science.gov (United States)

    Austin, Peter C; Schuster, Tibor; Platt, Robert W

    2015-10-15

    Estimating statistical power is an important component of the design of both randomized controlled trials (RCTs) and observational studies. Methods for estimating statistical power in RCTs have been well described and can be implemented simply. In observational studies, statistical methods must be used to remove the effects of confounding that can occur due to non-random treatment assignment. Inverse probability of treatment weighting (IPTW) using the propensity score is an attractive method for estimating the effects of treatment using observational data. However, sample size and power calculations have not been adequately described for these methods. We used an extensive series of Monte Carlo simulations to compare the statistical power of an IPTW analysis of an observational study with time-to-event outcomes with that of an analysis of a similarly-structured RCT. We examined the impact of four factors on the statistical power function: number of observed events, prevalence of treatment, the marginal hazard ratio, and the strength of the treatment-selection process. We found that, on average, an IPTW analysis had lower statistical power compared to an analysis of a similarly-structured RCT. The difference in statistical power increased as the magnitude of the treatment-selection model increased. The statistical power of an IPTW analysis tended to be lower than the statistical power of a similarly-structured RCT.

  18. Group devaluation and group identification

    NARCIS (Netherlands)

    Leach, C.W.; Rodriguez Mosquera, P.M.; Vliek, M.L.W.; Hirt, E.

    2010-01-01

    In three studies, we showed that increased in-group identification after (perceived or actual) group devaluation is an assertion of a (preexisting) positive social identity that counters the negative social identity implied in societal devaluation. Two studies with real-world groups used order manip

  19. Conscience and collective duties: do medical professionals have a collective duty to ensure that their profession provides non-discriminatory access to all medical services?

    Science.gov (United States)

    Parker, Joseph Clint

    2011-02-01

    Recent debates have led some to question the legitimacy of physicians refusing to provide legally permissible services for reasons of conscience. In this paper, I will explore the question of whether medical professionals have a collective duty to ensure that their profession provides nondiscriminatory access to all medical services. I will argue that they do not. I will also argue for an approach to dealing with intractable moral disagreements between patients and physicians that gives both parties veto power with regards to participation. Finally, I will respond to three objections to allowing physicians broad freedom to act on their consciences: such allowances would violate the conscience of the patient, would lead to unfairness, and would thwart important societal goals.

  20. Wind power in power systems

    CERN Document Server

    Ackermann, Thomas

    2012-01-01

    The second edition of the highly acclaimed Wind Power in Power Systems has been thoroughly revised and expanded to reflect the latest challenges associated with increasing wind power penetration levels. Since its first release, practical experiences with high wind power penetration levels have significantly increased. This book presents an overview of the lessons learned in integrating wind power into power systems and provides an outlook of the relevant issues and solutions to allow even higher wind power penetration levels. This includes the development of standard wind turbine sim

  1. Power Electronics

    DEFF Research Database (Denmark)

    Iov, Florin; Ciobotaru, Mihai; Blaabjerg, Frede

    2008-01-01

    energy at the end-user should also be set up. Deregulation of energy has in the past lowered the investment in larger power plants, which means the need for new electrical power sources will be high in the near future. Two major technologies will play important roles to solve the future problems. One...... is to change the electrical power production sources from the conventional, fossil (and short term) based energy sources to renewable energy resources. The other is to use high efficient power electronics in power generation, power transmission/distribution and end-user application. This paper discuss the most...... emerging renewable energy sources, wind energy, which by means of power electronics are changing from being a minor energy source to be acting as an important power source in the energy system. Power electronics is the enabling technology and the presentation will cover the development in wind turbine...

  2. Social group utility maximization

    CERN Document Server

    Gong, Xiaowen; Yang, Lei; Zhang, Junshan

    2014-01-01

    This SpringerBrief explains how to leverage mobile users' social relationships to improve the interactions of mobile devices in mobile networks. It develops a social group utility maximization (SGUM) framework that captures diverse social ties of mobile users and diverse physical coupling of mobile devices. Key topics include random access control, power control, spectrum access, and location privacy.This brief also investigates SGUM-based power control game and random access control game, for which it establishes the socially-aware Nash equilibrium (SNE). It then examines the critical SGUM-b

  3. Electric Power

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ China Council for the Promotion of International Trade Electric Power Industry Office (CCPIT Electric Power), one of the pro-fessional industrial branches of China Council for the Promotion of International Trade (CCPIT), was established in 2006.

  4. Power Electronics

    DEFF Research Database (Denmark)

    Iov, Florin; Ciobotaru, Mihai; Blaabjerg, Frede

    2008-01-01

    is to change the electrical power production sources from the conventional, fossil (and short term) based energy sources to renewable energy resources. The other is to use high efficient power electronics in power generation, power transmission/distribution and end-user application. This paper discuss the most...... emerging renewable energy sources, wind energy, which by means of power electronics are changing from being a minor energy source to be acting as an important power source in the energy system. Power electronics is the enabling technology and the presentation will cover the development in wind turbine...... technology from kW to MW, discuss which power electronic solutions are most feasible and used today....

  5. Normative Power

    DEFF Research Database (Denmark)

    The social sciences have many different understandings of ‘normative power', but in European Union (EU) studies normative power has three particular meanings. The first meaning of normative power is its emphasis on normative theory, that is, how we judge and justify truth claims in social science....... The second meaning of normative power is as a form of power that is ideational rather than material or physical. The third meaning of normative power is as a characterisation of an ideal type of international actor. Empirical studies of normative forms of power have analysed both the causal and constitutive...... effects of EU relations with the world in areas ranging from inter-regional relations, through traditional diplomacy, to environmental politics. Research areas of particular interest include the study of the interplay between physical, material and normative forms of power, as well as the constitutive...

  6. Power Talk

    DEFF Research Database (Denmark)

    Angjelichinoski, Marko; Stefanovic, Cedomir; Popovski, Petar

    2016-01-01

    A standard way to realize communication in microgrid control is to use an external communication network, such as modems for wireless or power-line communication, whose implementation may be inefficient in terms of deployment cost, complexity, and system stability. In this chapter we present...... a communication solution, denoted as power talk, which is solely based on the use of the existing microgrid power equipment (i.e., power electronics and buses). The pivotal idea is to modulate information in the power-related parameters of the microgrid buses by use of the flexibility of power electronic...... interfaces. The focus of the chapter is on the design of power talk solutions for DC microgrids with droop control. Specifically, the chapter presents the power talk implementation through modification of the droop parameters of the primary control loop, and investigates the design of modulation schemes...

  7. Algebraic Groups

    DEFF Research Database (Denmark)

    2007-01-01

    The workshop continued a series of Oberwolfach meetings on algebraic groups, started in 1971 by Tonny Springer and Jacques Tits who both attended the present conference. This time, the organizers were Michel Brion, Jens Carsten Jantzen, and Raphaël Rouquier. During the last years, the subject...... of algebraic groups (in a broad sense) has seen important developments in several directions, also related to representation theory and algebraic geometry. The workshop aimed at presenting some of these developments in order to make them accessible to a "general audience" of algebraic group......-theorists, and to stimulate contacts between participants. Each of the first four days was dedicated to one area of research that has recently seen decisive progress: \\begin{itemize} \\item structure and classification of wonderful varieties, \\item finite reductive groups and character sheaves, \\item quantum cohomology...

  8. Group Grammar

    Science.gov (United States)

    Adams, Karen

    2015-01-01

    In this article Karen Adams demonstrates how to incorporate group grammar techniques into a classroom activity. In the activity, students practice using the target grammar to do something they naturally enjoy: learning about each other.

  9. MUYANG GROUP

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ With its headquarters in the historic city of Yangzhou,Jiangsu Muyang Group Co.,Ltd has since its founding in 1967 grown into a well-known group corporation whose activities cover research&development.project design,manufacturing,installation and services in a multitude of industries including feed machinery and engineering,storage engineering,grain machinery and engineering,environmental protection,conveying equipment and automatic control systems.

  10. Abelian groups

    CERN Document Server

    Fuchs, László

    2015-01-01

    Written by one of the subject’s foremost experts, this book focuses on the central developments and modern methods of the advanced theory of abelian groups, while remaining accessible, as an introduction and reference, to the non-specialist. It provides a coherent source for results scattered throughout the research literature with lots of new proofs. The presentation highlights major trends that have radically changed the modern character of the subject, in particular, the use of homological methods in the structure theory of various classes of abelian groups, and the use of advanced set-theoretical methods in the study of undecidability problems. The treatment of the latter trend includes Shelah’s seminal work on the undecidability in ZFC of Whitehead’s Problem; while the treatment of the former trend includes an extensive (but non-exhaustive) study of p-groups, torsion-free groups, mixed groups, and important classes of groups arising from ring theory. To prepare the reader to tackle these topics, th...

  11. “The influence of control group reproduction on the statistical power of the Environmental Protection Agency’s Medaka Extended One Generation Reproduction Test (MEOGRT) data for simulations” Dataset

    Data.gov (United States)

    U.S. Environmental Protection Agency — Excel spreadsheet that contains the raw fecundity data used to conduct power simulations specific to the MEOGRT reproductive assessment. This dataset is associated...

  12. DanGrid. Report from working group 22. Concept for controlling the power system. [Smart grid in Denmark]; DanGrid. Delrapport. Arbejdsgruppe 22. Koncept for styring af elsystemet

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-09-15

    This report describes a Smart Grid concept for how the currently untapped and potentially cheaper resources, i.e. flexible electricity consumption and electricity generation, are put into play through markets or directly where it is economically desirable. The concept provides a framework for how all the actors involved (consumers, power plant owners, BRP, electricity traders, DSO, TSO and other new players) can create increased value solely because a today untapped resource can be activated, namely flexibility in consumption and production from even small consumers. The concept does not attempt to identify all technical needs to operate a market-based power system with 50 % wind power, but the concept focuses on the mobilization of new flexible resources for the benefit of the capacity and voltage challenges in the distribution networks, management of var flow between voltage levels and balance challenge in the power transmission system. (LN)

  13. Flower power; Flower-Power

    Energy Technology Data Exchange (ETDEWEB)

    Wiedemann, Karsten

    2010-08-15

    Scientists of Kassel university developed a concept for producing heat and electric power from grassland biomass. This strategy of decentral heat and power supply will also contribute to conservation goals. (orig.)

  14. Theory of groups of finite order

    CERN Document Server

    Burnside, W

    2013-01-01

    After introducing permutation notation and defining group, the author discusses the simpler properties of group that are independent of their modes of representation; composition-series of groups; isomorphism of a group with itself; Abelian groups; groups whose orders are the powers of primes; Sylow's theorem; more. 18 illustrations. A classic introduction.

  15. Group Anonymity

    CERN Document Server

    Chertov, Oleg; 10.1007/978-3-642-14058-7_61

    2010-01-01

    In recent years the amount of digital data in the world has risen immensely. But, the more information exists, the greater is the possibility of its unwanted disclosure. Thus, the data privacy protection has become a pressing problem of the present time. The task of individual privacy-preserving is being thoroughly studied nowadays. At the same time, the problem of statistical disclosure control for collective (or group) data is still open. In this paper we propose an effective and relatively simple (wavelet-based) way to provide group anonymity in collective data. We also provide a real-life example to illustrate the method.

  16. Stockholm Power Tech. Power systems

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-11-01

    The proceedings from this symposium is presented in six volumes: Invited speakers` sessions; Power systems; Power electronics; High-voltage technology; Electrical machines and drives; and Information and control systems. This report covers the power systems volume. Separate abstracts have been prepared for 141 of the 145 papers in this volume

  17. Informal groups

    NARCIS (Netherlands)

    E. van den Berg; P. van Houwelingen; J. de Hart

    2011-01-01

    Original title: Informele groepen Going out running with a group of friends, rather than joining an official sports club. Individuals who decide to take action themselves rather than giving money to good causes. Maintaining contact with others not as a member of an association, but through an Inter

  18. Discriminatory profile of rDNA sites and trend for acrocentric chromosome formation in the genus Trachinotus Lacépède, 1801 (Perciformes, Carangidae

    Directory of Open Access Journals (Sweden)

    Uedson Jacobina

    2012-10-01

    Full Text Available Chromosomal traits have provided valuable information for phylogeny and taxonomy of several fish groups. Three Atlantic Carangidae species of the genus Trachinotus Lacépède, 1801 (T. goodei Jordan et Evermann, 1896, T. carolinus (Linnaeus, 1766 and T. falcatus (Linnaeus, 1758 were investigated,2n=48 chromosomes but different chromosomal arms (FN number, i.e., 52, 56 and 58, respectively, in view of the different number of two-armed chromosomes found in their karyotypes. Thus, T. goodei, T. carolinus and T. falcatus present a progressive distance from the probable basal karyotype proposed for Perciformes (2n=48 acrocentrics, FN=48. At first sight, these findings do not agree with the phylogenetic hypothesis based on mitochondrial sequences, where T. goodei appear as the most derived species, followed by T. falcatus and T. carolinus, respectively. However, the chromosomal mapping of ribosomal DNAs was informative for clarifying this apparent conflict. Indeed, the multiple 5S and 18S rDNA sites found in T. goodei corroborate the most derived condition for this species. In this sense, the occurrence of the unexpected number of two-armed chromosomes and FN value for this species, as well as for T. carolinus, must be due to additional rounds of acrocentric formation in these species, modifying the macrostructure of their karyotypes.

  19. Power. Conflicting views.

    Science.gov (United States)

    Heineken, J

    1985-11-01

    This study on power is the first of its kind reported in the nursing literature. We now know that the term "power" has significantly different meanings for nurses. The basic differences found between nurse executives and head and charge nurses with respect to their views on power is a timely finding. Before generalizations and interventions can be definitively suggested, more studies must be done. Nurses interested in participating in this effort should contact the author. The issue of unification of nurses is important. More exploration in the area of power will bring us closer to mobilizing our potential and strength. Nurse executives will be more successful in accomplishing their organizational goals with a united personnel group. The discrepancy in power beliefs identified in this article will create the stimulus for further discussion and reflection.

  20. Play and Power

    DEFF Research Database (Denmark)

    The power of play, so central to psychoanalytic theory and practice, is conjoined to the social psychological or socio-politically coloured concept of power, giving rise to many fruitful discussions of how these concepts manifest themselves in clinical work with children, groups and adults....... The inspiration for this book was the 3-section EFPP conference in Copenhagen in May 2007 with the main theme "Play and Power". At the conference and in the book, this theme is presented both inside and outside the therapeutic space. It is amply illustrated in clinical cases from individual psychotherapies....... Play and power are also explored in the broader context of the community, however. In relation to society at large, psychoanalytic psychotherapy has important contributions to offer society, and we need playful creativity and power to bring forward our knowledge about it....

  1. From the Dog Whistle to the Dog Scream: The Republican Party's (AbUse of Discriminatory speech in Electoral Campaigns and Party Politics

    Directory of Open Access Journals (Sweden)

    Luiza-Maria Filimon

    2016-12-01

    Full Text Available The 2016 U.S. presidential election can be described as nostalgic. On one hand, there was the fond remembrance of the Clinton administration characterized by a period of economic prosperity which overshadowed the more disastrous aftermath of various policies (the crime bill, the welfare reform, the Defense of Marriage Act, the repeal of the 1933 Glass-Steagall Act, etc.. On the other, the 2016 election brought to the surface a dormant longing for a privileged past rooted in open discrimination, inequality, segregation, and white supremacy, echoed by Donald Trump’s campaign. The Republican candidate had won the party’s nomination by openly and devoutly proselytizing against minority groups that allegedly threaten the fabric, integrity, and security of the United States. The more ethnic stereotypical caricatures and outright lies he employed in his speeches, the more successful his primary campaign was and the more he unnerved the Republican establishment, the general electorate, and the media. Yet Donald Trump’s campaign was not innovative by any means. Instead, as this study will argue, Trump’s electoral success during the primary elections can be in part attributed to the Republican Party’s decades-long history of strategic racism that has been instrumental in grooming the party’s base into Donald Trump’s supporters. In order to showcase that Trump’s ascendancy to the top of the Republican primary election was not a political accident, but a natural progression of decades-old officially sanctioned electoral policies, the study analyzes the origins behind the “dog whistle” practice, based on the model of strategic racism advanced by Ian Haney López. In conducting this research, I provide examples from U.S. public officials – past and present – and also highlight the role of the media in the propagation and cultivation of dog whistle politics.

  2. COMMUNICATIONS GROUP

    CERN Multimedia

    L. Taylor

    2011-01-01

    The CMS Communications Group, established at the start of 2010, has been busy in all three areas of its responsibility: (1) Communications Infrastructure, (2) Information Systems, and (3) Outreach and Education. Communications Infrastructure There are now 55 CMS Centres worldwide that are well used by physicists working on remote CMS shifts, Computing operations, data quality monitoring, data analysis and outreach. The CMS Centre@CERN in Meyrin, is the centre of the CMS offline and computing operations, hosting dedicated analysis efforts such as during the CMS Heavy Ion lead-lead running. With a majority of CMS sub-detectors now operating in a “shifterless” mode, many monitoring operations are now routinely performed from there, rather than in the main Control Room at P5. The CMS Communications Group, CERN IT and the EVO team are providing excellent videoconferencing support for the rapidly-increasing number of CMS meetings. In parallel, CERN IT and ...

  3. Lego Group

    DEFF Research Database (Denmark)

    Møller Larsen, Marcus; Pedersen, Torben; Slepniov, Dmitrij

    2010-01-01

    The last years’ rather adventurous journey from 2004 to 2009 had taught the fifth-largest toy-maker in the world - the LEGO Group - the importance of managing the global supply chain effectively. In order to survive the largest internal financial crisis in its roughly 70 years of existence......, the management had, among many initiatives, decided to offshore and outsource a major chunk of its production to Flextronics. In this pursuit of rapid cost-cutting sourcing advantages, the LEGO Group planned to license out as much as 80 per cent of its production besides closing down major parts...... of the production in high cost countries. Confident with the prospects of the new partnership, the company signed a long-term contract with Flextronics. This decision eventually proved itself to have been too hasty, however. Merely three years after the contracts were signed, LEGO management announced that it would...

  4. Group play

    DEFF Research Database (Denmark)

    Tychsen, Anders; Hitchens, Michael; Brolund, Thea

    2008-01-01

    of group dynamics, the influence of the fictional game characters and the comparative play experience between the two formats. The results indicate that group dynamics and the relationship between the players and their digital characters, are integral to the quality of the gaming experience in multiplayer......Role-playing games (RPGs) are a well-known game form, existing in a number of formats, including tabletop, live action, and various digital forms. Despite their popularity, empirical studies of these games are relatively rare. In particular there have been few examinations of the effects...... of the various formats used by RPGs on the gaming experience. This article presents the results of an empirical study, examining how multi-player tabletop RPGs are affected as they are ported to the digital medium. Issues examined include the use of disposition assessments to predict play experience, the effect...

  5. Group Connections: Whole Group Teaching.

    Science.gov (United States)

    Griffiths, Dorothy

    2002-01-01

    A learner-centered approach to adult group instruction involved learners in investigating 20th-century events. The approach allowed learners to concentrate on different activities according to their abilities and gave them opportunities to develop basic skills and practice teamwork. (SK)

  6. Competition on the electric power market. New liabilities for the municipalities and municipalities groups; Concurrence sur le marche de l'electricite. Nouvelles responsabilites pour les communes et les groupements de communes

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    Facing the opening, at the first of july 2004, of the electric power market, this document aims to help the municipalities. It presents the main stakes of the deregulation, the main lines of the reform, the concerned organisms and the actors. (A.L.B.)

  7. Reassessing Power

    Institute of Scientific and Technical Information of China (English)

    CHARLES; K.EBINGER; JOHN; P.BANKS

    2011-01-01

    Fukushima accident increases global concern over nuclear safety The accident at the Fukushima Daiichi Nuclear Power Plant in Japan has had an immediate impact on resurgent interest in nuclear power worldwide.Numerous governments have announced plans to re-examine nuclear energy policy and review the safety of their reactors and the adequacy of their regulatory frameworks.

  8. Power Drain

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Rising coal prices mean dwindling profits for China’s power plants. In some cases,they have forced plants to close their doors If electricity prices were not raised together with fuel prices, the country’spower plants could not survive. This isthe common voice of China’s power plants now.

  9. Power Source

    Science.gov (United States)

    Schooley, Michael L.

    2010-01-01

    Principals are powerful: They are the primary catalysts for creating a lasting foundation for learning, driving school and student performance, and shaping the long-term impact of school improvement efforts. Yet few principals would characterize themselves as powerful. Rather, they're self-effacing, adaptable, pragmatic, and quick to share credit…

  10. Diastatic power

    Science.gov (United States)

    diastatic power: Diastatic power, abbreviated DP, is the total activity of malt starch degrading enzymes that hydrolyze starch to fermentable sugars. The starch degrading enzymes contributing to this process are a-amylase, ß-amylase, limit dextrinase, and a-glucosidase. The driving force for DP a...

  11. COMMUNICATIONS GROUP

    CERN Multimedia

    L. Taylor

    2011-01-01

    The CMS Communications Group has been busy in all three areas of its responsibility: (1) Communications Infrastructure, (2) Information Systems, and (3) Outreach and Education. Communications Infrastructure The 55 CMS Centres worldwide are well used by physicists working on remote CMS shifts, Computing operations, data quality monitoring, data analysis and outreach. The CMS Centre@CERN in Meyrin, is the centre of the CMS Offline and Computing operations, and a number of subdetector shifts can now take place there, rather than in the main Control Room at P5. A new CMS meeting room has been equipped for videoconferencing in building 42, next to building 40. Our building 28 meeting room and the facilities at P5 will be refurbished soon and plans are underway to steadily upgrade the ageing equipment in all 15 CMS meeting rooms at CERN. The CMS evaluation of the Vidyo tool indicates that it is not yet ready to be considered as a potential replacement for EVO. The Communications Group provides the CMS-TV (web) cha...

  12. COMMUNICATIONS GROUP

    CERN Multimedia

    L. Taylor

    2010-01-01

    The CMS Communications Group, established at the start of 2010, has been strengthening the activities in all three areas of its responsibility: (1) Communications Infrastructure, (2) Information Systems, and (3) Outreach and Education. Communications Infrastructure The Communications Group has invested a lot of effort to support the operations needs of CMS. Hence, the CMS Centres where physicists work on remote CMS shifts, Data Quality Monitoring, and Data Analysis are running very smoothly. There are now 55 CMS Centres worldwide, up from just 16 at the start of CMS data-taking. The latest to join are Imperial College London, the University of Iowa, and the Università di Napoli. The CMS Centre@CERN in Meyrin, which is now full repaired after the major flooding at the beginning of the year, has been at the centre of CMS offline and computing operations, most recently hosting a large fraction of the CMS Heavy Ion community during the lead-lead run. A number of sub-detector shifts can now take pla...

  13. Power system

    Science.gov (United States)

    Hickam, Christopher Dale

    2008-03-18

    A power system includes a prime mover, a transmission, and a fluid coupler having a selectively engageable lockup clutch. The fluid coupler may be drivingly connected between the prime mover and the transmission. Additionally, the power system may include a motor/generator drivingly connected to at least one of the prime mover and the transmission. The power-system may also include power-system controls configured to execute a control method. The control method may include selecting one of a plurality of modes of operation of the power system. Additionally, the control method may include controlling the operating state of the lockup clutch dependent upon the mode of operation selected. The control method may also include controlling the operating state of the motor/generator dependent upon the mode of operation selected.

  14. Study on operation conditions and an operation system of a nuclear powered submersible research vessel, 'report of working group on application of a very small nuclear reactor to an ocean research'

    Energy Technology Data Exchange (ETDEWEB)

    Ura, Tamaki [Tokyo Univ., Tokyo (Japan); Takamasa, Tomoji [Tokyo Univ. of Mercantile Marine, Tokyo (Japan); Nishimura, Hajime [Japan Marine Science and Technology Center, Yokosuka, Kanagawa (JP)] [and others

    2001-07-01

    JAERI has studied on design of a nuclear powered submersible research vessel, which will navigate under sea mainly in the Arctic Ocean, as a part of the design activity of advanced marine reactors. This report describes operation conditions and an operating system of the vessel, which were discussed by the specialists of hull design, sound positioning, ship motions and oceanography, etc. The design conditions on ship motions for submersible vessels were surveyed considering regulations in our country, and ship motions were evaluated in the cases of underwater and surface navigations taking account of observation activities in the Arctic Ocean. The effect of ship motions on the compact nuclear reactor SCR was assessed. A submarine transponder system and an on-ice communication buoy system were examined as a positioning and communication system, supposing the activity under ice. The interval between transponders or communication buoys was recommended as 130 km. Procedures to secure safety of nuclear powered submersible research vessel were discussed according to accidents on the hull or the nuclear reactor. These results were reflected to the concept of the nuclear powered submersible research vessel, and subjects to be settled in the next step were clarified. (author)

  15. Research Developments on Power System Integration of Wind Power

    DEFF Research Database (Denmark)

    Chen, Zhe; Hansen, Jens Carsten; Qiuwei, Wu

    2011-01-01

    This paper presents an overview on the recent research activities and tendencies regarding grid integration of wind power in Denmark and some related European activities, including power electronics for enhancing wind power controllability, wind turbines and wind farms modeling,wind power...... variability and prediction, wind power plant ancillary services, grid connection and operation, Smart grids and demand side management under market functionality. The topics of the first group of PhD program starting 2011 under the wind energy Sino-Danish Centre for Education & Research (SDC) are also...

  16. UPWARD POWER TENDENCIES IN A HIERARCHY - POWER DISTANCE THEORY VERSUS BUREAUCRATIC RULE

    NARCIS (Netherlands)

    WILKE, HAM

    1993-01-01

    Two contrasting notions concerning upward power tendencies within hierarchically structured groups are investigated. Power Distance Theory assumes that people have a desire for power that results in a tendency to reduce the power distance towards a more powerful other, and this tendency is assumed t

  17. Differentiation of African components of ancestry to stratify groups in a case-control study of a Brazilian urban population.

    Science.gov (United States)

    Silbiger, Vivian N; Hirata, Mario H; Luchessi, Andre D; Genvigir, Fabiana D V; Cerda, Alvaro; Rodrigues, Alice C; Willrich, Maria A V; Arazi, Simone S; Dorea, Egidio L; Bernik, Marcia M S; Faludi, Andre A; Bertolami, Marcelo C; Santos, Carla; Carracedo, Angel; Salas, Antonio; Freire, Ana; Lareu, Maria Victoria; Phillips, Christopher; Porras-Hurtado, Liliana; Fondevila, Manuel; Hirata, Rosario D C

    2012-06-01

    Balancing the subject composition of case and control groups to create homogenous ancestries between each group is essential for medical association studies. We explored the applicability of single-tube 34-plex ancestry informative markers (AIM) single nucleotide polymorphisms (SNPs) to estimate the African Component of Ancestry (ACA) to design a future case-control association study of a Brazilian urban sample. One hundred eighty individuals (107 case group; 73 control group) self-described as white, brown-intermediate or black were selected. The proportions of the relative contribution of a variable number of ancestral population components were similar between case and control groups. Moreover, the case and control groups demonstrated similar distributions for ACA 0.50 categories. Notably a high number of outlier values (23 samples) were observed among individuals with ACA population. This can be achieved using a straight forward multiplexed AIM-SNPs assay of highly discriminatory ancestry markers.

  18. Power Talk

    DEFF Research Database (Denmark)

    Liu, Hongpeng; Yang, Yongheng; Loh, Poh Chiang

    2016-01-01

    In this paper, a novel communication strategy called Power Talk is introduced to realize the power line communication among the Voltage Source Converters (VSC) of DC MicroGrids (MGs). Each VSC transmits information by changing the control parameters, and receives information by observing the local...... output power. By using common coding schemes, which transform the DC MGs in some familiar communication channels, some important communication challenges can be addressed, such as random load variations and VSCs switching, as it do not need a separate communication channel. For this purpose, two multiple...

  19. COMMUNICATIONS GROUP

    CERN Multimedia

    L. Taylor

    2011-01-01

    Communications Infrastructure The 55 CMS Centres worldwide are well used by physicists working on remote CMS shifts, Computing operations, data quality monitoring, data analysis and outreach. The CMS Centre@CERN in Meyrin is particularly busy at the moment, hosting about 50 physicists taking part in the heavy-ion data-taking and analysis. Three new CMS meeting room will be equipped for videoconferencing in early 2012: 40/5B-08, 42/R-031, and 28/S-029. The CMS-TV service showing LHC Page 1, CMS Page 1, etc. (http://cmsdoc.cern.ch/cmscc/projector/index.jsp) is now also available for mobile devices: http://cern.ch/mcmstv. Figure 12: Screenshots of CMS-TV for mobile devices Information Systems CMS has a new web site: (http://cern.ch/cms) using a modern web Content Management System to ensure content and links are managed and updated easily and coherently. It covers all CMS sub-projects and groups, replacing the iCMS internal pages. It also incorporates the existing CMS public web site (http:/...

  20. COMMUNICATIONS GROUP

    CERN Multimedia

    L. Taylor

    2012-01-01

      Outreach and Education We are fortunate that our research has captured the public imagination, even though this inevitably puts us under the global media spotlight, as we saw with the Higgs seminar at CERN in December, which had 110,000 distinct webcast viewers. The media interest was huge with 71 media organisations registering to come to CERN to cover the Higgs seminar, which was followed by a press briefing with the DG and Spokespersons. This event resulted in about 2,000 generally positive stories in the global media. For this seminar, the CMS Communications Group prepared up-to-date news and public material, including links to the CMS results, animations and event displays [http://cern.ch/go/Ch8thttp://cern.ch/go/Ch8t]. There were 44,000 page-views on the CMS public website, with the Higgs news article being by far the most popular item. CMS event displays from iSpy are fast becoming the iconic media images, featuring on numerous major news outlets (BBC, CNN, MSN...) as well as in the sci...

  1. COMMUNICATIONS GROUP

    CERN Multimedia

    L. Taylor

    2010-01-01

    The recently established CMS Communications Group, led by Lucas Taylor, has been busy in all three of its main are areas of responsibility: Communications Infrastructure, Information Systems, and Outreach and Education Communications Infrastructure The damage caused by the flooding of the CMS Centre@CERN on 21st December has been completely repaired and all systems are back in operation. Major repairs were made to the roofs, ceilings and one third of the floor had to be completely replaced. Throughout these works, the CMS Centre was kept operating and even hosted a major press event for first 7 TeV collisions, as described below. Incremental work behind the scenes is steadily improving the quality of the CMS communications infrastructure, particularly Webcasting, video conferencing, and meeting rooms at CERN. CERN/IT is also deploying a pilot service of a new videoconference tool called Vidyo, to assess whether it might provide an enhanced service at a lower cost, compared to the EVO tool currently in w...

  2. Meeting moved due to discriminatory law

    Science.gov (United States)

    Kruesi, Liz

    2016-09-01

    The American Physical Society (APS) has relocated the 2018 annual meeting of the Division of Atomic, Molecular and Optical Physics (DAMOP) over concerns about a new state law that discriminates against members of the lesbian, gay, bisexual and transgender (LGBT) community.

  3. Discriminatory Analysis II. Factor Analysis and Discrimination

    Science.gov (United States)

    1950-10-01

    Press, � PP. ANASTASI, A. (see Garpett, Hi. E.). AvNDER630NJ T. ’W.,, 1 )46. The asyraptotic distrib’utions of the * roo’ts of cartain determinantal ... determinantal equation. J. Lond. Mathi Spo., 16# 183,194." HSU, P. L., l941ic. On the limiting distribution of the canoni- cal co(rrelations. Biom4, 32...Journal oT Gerletics. 6i< U. Psyclh~. Journal of ’Psych-1oby. ’BF1.j61 * ~~AbbreviationTi’ J. Soc. Psyoht’ Journal Of- SOCial Psycho~logy.- AM2t5l.ALJ. J

  4. Power Preservation

    DEFF Research Database (Denmark)

    Galster, Kjeld

    Power Preservation (Abstract) In the 17th century, just as today, coalitions needed ‘lead nations’. This was assumed to be a power with great military and economic potentials, and Denmark endeavoured to act as such a leader in the Thirty Years War from 1626 to 28. The results were not encouraging...... in the military field and they were disastrous as far as fiscal matters were concerned. Sweden took over the leadership of the protestant side and she took over Denmark’s place amongst the great powers of the Baltic Region. From that time onwards, Danish influence and options on the international stage gradually...... declined. Thus, Denmark of the 17th century is not to be counted amongst the great powers, but since Christian V’s accession to the throne in 1670 Denmark-Norway has developed into one of Europe’s most highly militarised states. Apart from a permanently combat ready navy, the country maintains a standing...

  5. Introduction to electrical power and power electronics

    CERN Document Server

    Patel, Mukund R

    2012-01-01

    Power Generation, Distribution, and Utilization AC Power Fundamentals Common Aspects of Power Equipments AC Generator AC and DC Motors Transformer Power Cable Power Distribution Fault Current Analysis System ProtectionEconomic Use of PowerElectrochemical BatteryPower Electronics and Motor Drives Power Electronics Devices DC-DC Converters AC-DC-AC Converters Variable-Frequency Drives Quality of Power Power Converter CoolingAppendixIndex

  6. Avaliação do teor e da estabilidade de vitaminas do complexo B e vitamina C em bebidas isotônicas e energéticas Evaluation of the amount and stability of B group vitamins and vitamin C in power and isotonic beverages

    Directory of Open Access Journals (Sweden)

    Fernanda J. de Castro

    2006-07-01

    Full Text Available Vitamin C stability and concentration was evaluated in isotonic beverages and B group vitamins (B1, B2, B3, B5 and B6 in power beverages. The amount of vitamins was found to be above of that declared on the labels, even after the shelf life had been exceeded. A small decrease in the amount of B group vitamins was observed during the shelf life of the products. In the case of vitamin C this decrease was slightly higher. The present research shows the need of increased quality control and inspection.

  7. Notes on quantum groups

    Energy Technology Data Exchange (ETDEWEB)

    Pressley, A.; Chari, V. (King' s Coll., London (UK). Dept. of Mathematics Tata Inst. of Fundamental Research, Bombay (India). School of Mathematics)

    1990-12-01

    The authors presents an introduction to quantum groups defined as a deformation of the universal enveloping algebra of a Lie algebra. After the description of Hopf algebras with some examples the approach of Drinfel'd and Jimbo is described, where the quantization of a Lie algebra represents a Hopf algebra, defined over the algebra of formal power series in an indetermined h. The authors show that this approach arises from a r-matrix, which satisfies the classical Yang-Baxter equation. As example quantum sl{sub 2} is considered. Furthermore the approaches of Manin and Woroniwicz and the R-matrix approach are described. (HSI).

  8. 构建电力集团成本领先战略的物资采购策略体系%On the Construction of Materials Purchasing Strategy System of Cost Leadership Strategy in Power Group

    Institute of Scientific and Technical Information of China (English)

    何成江; 陈宏; 李政

    2012-01-01

    自2006年以来,国华电力在以往集团化物资管理的经验基础上,根据发电企业物资管理特征,应用现代供应链管理理论和战略采购理论,围绕三方面推进采购策略体系创新。一是以集约化管理思想实施组织创新;二是推进采购策略理念体系创新;三是实施采购策略执行体系创新。采购策略体系的创新实现了直接效益和间接效益双提高。%Since 2006, based on the previous experience of collectivized materials management, according to the features of materials management in power generating enterprise, Guohua Electric Power has promoted the innovation of purchasing strategy system from three aspects by applying the theories of modem supply chain management and strategic purchasing: firstly, implementing organizational innovation with the idea of intensive management; secondly, promoting the innovation of purchasing strategy ideational system; thirdly, implementing the innovation of purchasing strategy enforcement system. The innovation of purchasing strategy system has realized the dual improvement of both direct benefits and indirect benefits.

  9. The Effect of the Angle Swing of Weak-connection Generator Groups in a Regional Grid to the Angle Stability of the Interconnected Power System%区域电网内弱联机群摆动对互联系统功角稳定性的影响

    Institute of Scientific and Technical Information of China (English)

    顾卓远; 汤涌; 孙华东; 易俊; 何剑; 安之

    2015-01-01

    This paper studies some transient stability characteristics of interconnected power systems based on a three-machine equivalent system. The impact of generator group angle swing on equivalent potential in a regional grid is taken into account. The analysis indicates that the post-disturbance generator group angle swing in a regional grid can affect the amplitude of equivalent potential, which leads to the change of transient stability of interconnected systems. Furthermore, that angle instability of interconnected systems will easily occur in case that the advanced generator group encounters severe disturbances. Therefore, the severity of transient stability cannot be just reflected by the energy of disturbance. And it should also analyze the impact of generator group angle swing on transient stability in a certain region especially addressing the issue of large interconnected systems.%ABSTRACT: This paper studies some transient stability characteristics of interconnected power systems based on a three-machine equivalent system. The impact of generator group angle swing on equivalent potential in a regional grid is taken into account. The analysis indicates that the post-disturbance generator group angle swing in a regional grid can affect the amplitude of equivalent potential, which leads to the change of transient stability of interconnected systems. Furthermore, that angle instability of interconnected systems will easily occur in case that the advanced generator group encounters severe disturbances. Therefore, the severity of transient stability cannot be just reflected by the energy of disturbance. And it should also analyze the impact of generator group angle swing on transient stability in a certain region especially addressing the issue of large interconnected systems.

  10. 3. report of study group 6.2 ''new market for gas - technology evaluation'': factor analysis on penetration of gas cooling; biogas, a renewable energy source; micro- and mini- combined heat and power generation

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    Over the past ten years, the hoped for growth of an international air conditioning market fueled by natural gas, has not lived up to expectations. The purpose of this report is to assess causal factors and to pinpoint any key areas for corrective action, if our successes are to be enhanced. We started by evaluating the conditions in the Japanese market that allowed for the most successful penetration of the gas cooling market in the world, and then built a model that describes those conditions. Next we examined the market criteria and constructed models for two cities in the U.S., and for France and Spain, and then compared the results against the Japanese model. Biogas is the name given to a gas mixture with high methane content resulting from the bacteriological fermentation of organic material in an anaerobic environment. In addition to combustible methane gas, the mixture contains carbon dioxide, water and lesser amounts of other components. Today, there is an increased demand in some of the worlds' markets for environmentally friendly and sustainable energy systems. The fact that biogas is just as clean as natural gas and is renewable can be used by the natural gas industry in their efforts to increase gas demand. As natural gas can benefit from biogas, biogas can also benefit from natural gas. Biogas needs the support of the resources of the natural gas industry, such as infrastructure, marketing and research to become one, albeit small, part of our energy supply. IGU SG 6.2 presents in this paper a short description of the possible uses of biogas, a description of the biogas process, the different technologies for production, cleaning and upgrading biogas to natural gas quality, and some of the marketing concepts that have been successfully employed. A world-wide trend towards decentralized power generation is being observed in those countries where electricity is generated in centralized fossil-fuelled power stations. This is due to a variety of

  11. Estimating the concordance probability in a survival analysis with a discrete number of risk groups.

    Science.gov (United States)

    Heller, Glenn; Mo, Qianxing

    2016-04-01

    A clinical risk classification system is an important component of a treatment decision algorithm. A measure used to assess the strength of a risk classification system is discrimination, and when the outcome is survival time, the most commonly applied global measure of discrimination is the concordance probability. The concordance probability represents the pairwise probability of lower patient risk given longer survival time. The c-index and the concordance probability estimate have been used to estimate the concordance probability when patient-specific risk scores are continuous. In the current paper, the concordance probability estimate and an inverse probability censoring weighted c-index are modified to account for discrete risk scores. Simulations are generated to assess the finite sample properties of the concordance probability estimate and the weighted c-index. An application of these measures of discriminatory power to a metastatic prostate cancer risk classification system is examined.

  12. SIMULATE-4 pin power calculations

    Energy Technology Data Exchange (ETDEWEB)

    Bahadir, T. [Studsvik Scandpower, Inc., 1087 Beacon St., Newton, MA 02459 (United States); Lindahl, S. Oe [Studsvik Scandpower AB, Hantverkargatan 2A, SE-722 12 Vasteraas (Sweden)

    2006-07-01

    A new pin power reconstruction module has been implemented in Studsvik Scandpower's next generation nodal code, SIMULATE-4. Heterogeneous pin powers are calculated by modulating multi-group pin powers from the sub-mesh solver of SIMULATE-4 with pin form factors from single-assembly CASMO-5 lattice calculations. The multi-group pin power model captures instantaneous spectral effects, and actinide tracking on the assembly sub-mesh describes exposure-induced pin power variations. Model details and verification tests against high order multi-assembly transport methods are presented. The accuracy of the new methods is also demonstrated by comparing SIMULATE-4 calculations with measured critical experiment pin powers. (authors)

  13. High Power Factor Power Design

    Directory of Open Access Journals (Sweden)

    Zhang Jing-yi

    2013-07-01

    Full Text Available The PFC circuit takes UCC28019 made by TI Company as the core of system control, realize the power factor correction circuit functions, and the circuit power factor can be measured. Through a variety of detection circuit, with the support SCM control. And 30V~36V output voltage regulator can be set; with over-current protection circuits function, and be able to automatically back. Output current, voltage, and little significant value are displayed by display modules.

  14. Group Formation in Economics

    Science.gov (United States)

    Demange, Gabrielle; Wooders, Myrna

    2005-01-01

    Broad and diverse ranges of activities are conducted within and by organized groups of individuals, including political, economic and social activities. These activities have recently become a subject of intense interest in economics and game theory. Some of the topics investigated in this collection are models of networks of power and privilege, trade networks, co-authorship networks, buyer-seller networks with differentiated products, and networks of medical innovation and the adaptation of new information. Other topics are social norms on punctuality, clubs and the provision of club goods and public goods, research and development and collusive alliances among corporations, and international alliances and trading agreements. While relatively recent, the literature on game theoretic studies of group formation in economics is already vast. This volume provides an introduction to this important literature on game-theoretic treatments of situations with networks, clubs, and coalitions, including some applications.

  15. Power Down

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ Cai Wending and his colleague Xie Changsheng have been living out of a suitcase for the past two months.The pair,managers at a coal-fired power plant in Hunan Province,have been staying in a modest three-star hotel in Jincheng,a small city in Shanxi Province.They are not the only long-term residents of the hotel.Numerous power plant officials have been drawn to Jincheng from across China,all for the same purpose-to buy coal.

  16. Character theory of finite groups

    CERN Document Server

    Isaacs, I Martin

    2006-01-01

    Character theory is a powerful tool for understanding finite groups. In particular, the theory has been a key ingredient in the classification of finite simple groups. Characters are also of interest in their own right, and their properties are closely related to properties of the structure of the underlying group. The book begins by developing the module theory of complex group algebras. After the module-theoretic foundations are laid in the first chapter, the focus is primarily on characters. This enhances the accessibility of the material for students, which was a major consideration in the

  17. From mapping class groups to automorphism groups of free groups

    DEFF Research Database (Denmark)

    Wahl, Nathalie

    2005-01-01

    We show that the natural map from the mapping class groups of surfaces to the automorphism groups of free groups, induces an infinite loop map on the classifying spaces of the stable groups after plus construction. The proof uses automorphisms of free groups with boundaries which play the role...... of mapping class groups of surfaces with several boundary components....

  18. Powering up

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    China building the world’s first third-generation nuclear power plants based on American technology Almost 30 years ago, a partial core meltdown occurred in one of the two nuclear reactors at Three Mile llsland Nuclear Generating Station in

  19. Comic Power

    DEFF Research Database (Denmark)

    Tønder, Lars

    2014-01-01

    by skepticism about the enduring contributions of comic acts, and it then goes on to suggest that we turn to an alternative trajectory in democratic theory, one that encourages us to focus on the empowering and pluralizing potential embedded in what I name “comic power.” The wager is that attention...

  20. Power Play

    Institute of Scientific and Technical Information of China (English)

    BRADLEY GARDNER

    2008-01-01

    @@ Bill Emmott's new book,Rivals:How the Power Struggle Between China,India and Japan Will Shape Our Next Decade,is an investigation of the problematic relationship between China,India,and Japan,as two of those countries begin to assert themselves on the world stage,and how the situation could result in all-out conflict.

  1. Power Talk

    DEFF Research Database (Denmark)

    Stefanovic, Cedomir; Popovski, Petar; Angjelichinoski, Marko

    2015-01-01

    , while it is received by processing the bus measurements that units perform. This implies that the communication does not require a dedicated modem, but instead it is piggybacked on top of the power electronics. The communication is challenged by the random fluctuations of the voltage level due...

  2. Power semiconductors

    CERN Document Server

    Kubát, M

    1984-01-01

    The book contains a summary of our knowledge of power semiconductor structures. It presents first a short historic introduction (Chap. I) as well as a brief selection of facts from solid state physics, in particular those related to power semiconductors (Chap. 2). The book deals with diode structures in Chap. 3. In addition to fundamental facts in pn-junction theory, the book covers mainly the important processes of power structures. It describes the emitter efficiency and function of microleaks (shunts). the p +p and n + n junctions, and in particular the recent theory of the pin, pvn and p1tn junctions, whose role appears to be decisive for the forward mode not only of diode structures but also of more complex ones. For power diode structures the reverse mode is the decisive factor in pn-junction breakdown theory. The presentation given here uses engineering features (the multiplication factor M and the experimentally detected laws for the volume and surface of crystals), which condenses the presentation an...

  3. POWER FUNCTIONS

    Institute of Scientific and Technical Information of China (English)

    王雷

    2008-01-01

    <正>A power function of degree n is a function of the form f(x)=ax~n.For large n,it appears that the graph coincide with the x-axis near the origin,but it does not;the graph actually touches the x—axis only at the origin.

  4. Power Shift

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ "We are entering a new era of world history: the end of Western domination and the arrival of the Asian century. The question is: will Washington wake up to this reality?" This is the central premise of Kishore Mahbubani's provocative new book The New Asian Hemisphere: The Irresistible Shift of Global Power to the East.

  5. Power branding

    Energy Technology Data Exchange (ETDEWEB)

    Chambers, A.

    1998-12-31

    For most of its century-long history, electricity was a natural monopoly, due in part to the excessive cost of the necessary infrastructure. In the past decade, however, politics have pushed the industry toward competition and consumer choice. At the same time, technology has been developed that allows consumers to choose their electricity supplier and to track the flow of power through the various grids and lines. In her new book, Power Branding, author and industry expert Ann Chambers examines marketing and branding of electricity -- what it is, how it`s done, what its benefits are for electric utilities, marketers, and even natural gas companies allied with the utilities. She surveys industry leaders who have already taken a dive into the ocean of marketing and offers lessons drawn from their experiences. She also takes a look at other formerly regulated industries -- airlines, telephone, natural gas -- and describes how their rebirth as free-market industries may affect the course of the electric utility industry`s experience. The contents include: Introduction; Basics of branding: Brand image; Value-added services; Southern Company; Duke Energy; UtiliCorp/EnergyOne/Aquila--big and brand; Engage energy; Florida Power and Light Co.; Enron; Convergence; Lessons from the natural gas industry; Lessons from other industries; Conclusion; Resources; Glossary of branding, marketing and Btu convergence; and Major federal legislation affecting the electric power industry.

  6. Research in power systems: power quality and electricity market

    OpenAIRE

    Amarís Duarte, Hortensia; Usaola, Julio

    2008-01-01

    The research group REDES from UC3M has experience on electricity market, grid integration of wind energy and power quality. The group may offer consulting activities with a high component of research. We are looking for the collaboration of companies devoted to the consulting related to electricity markets, the integration of wind power in the electricity network, and with power quality. Contrato Programa de Comercialización e Internacionalización. Sistema Regional de Investigación Científ...

  7. 海上风电机组多桩承台基础结构设计与参数优化分析%Structure Design and Parameter Optimization Analysis on Pile Group Cap Foundation of Offshore Wind Power

    Institute of Scientific and Technical Information of China (English)

    李振作; 田伟辉; 胡永柱

    2015-01-01

    针对适用于软土海床地基条件的近海风电机组多桩承台基础结构型式,依据相关规范及工程经验,确定多桩承台基础结构尺寸设计原则,分析基础结构设计所应考虑的荷载及荷载组合方式,建立多桩承台基础结构分析模型,对基础结构设计的主要参数进行优化分析,为海上风电基础结构设计提供指导。%For studying the structural type of pile group cap foundation for offshore wind turbine which is suitable for soft clay seabed, the size design principles of this foundation are determined, the loads and load combinations of structure design are analyzed and then the structure analysis model of this foundation is established according to the relevant standards and engineering experiences. The main parameters in the structure design of pile group cap foundation are optimized by using the model to provide guidance for the structure design of offshore wind turbine.

  8. T-S fuzzy control on nuclear reactor power based on model of point kinetics with one delayed neutron group%基于单组缓发中子模型的反应堆功率T-S模糊控制

    Institute of Scientific and Technical Information of China (English)

    赵伟宁; 栾秀春; 樊达宜; 周杰

    2013-01-01

    The T - S fuzzy controller was designed based on the dynamic model of point kinetics with one delayed neutron group to control the power of nuclear reactor. The simulation result showed the satisfactory performance of the T - S fuzzy controller to control the nuclear reactor power output.%基于T-S模糊模型,针对单组缓发中子点堆动力学方程,设计了T-S模糊控制器来实现对反应堆功率的控制.仿真结果表明,所设计的T-S模糊模型控制器能够较好的控制反应堆功率的输出,取得较好的控制效果.

  9. Poultry power

    Energy Technology Data Exchange (ETDEWEB)

    Loram, G.

    2000-02-01

    This article gives details of the world's largest power plant fired by poultry litter and forestry waste fired in Thetford, UK. The processing of the waste, the injection of the waste by air, the plant operation, and the cleaning of the flue gas are described. The low levels of odour and noise, and the environmental benefits of the plant which produces no methane or carbon dioxide emissions are noted. (uk)

  10. Cyber Power

    Science.gov (United States)

    2010-05-01

    attributed to “patriotic hackers” in Russia who were offended by Estonia’s movement of a World War II monument to Soviet soldiers. In 2008, shortly...internet to mobilize Chinese students to demonstrate against Japan when its officials took positions that offended Chinese views of the 1930s...reduction of power differentials among them. Anyone from a teen age hacker to a major modern government can do damage in cyber space, and as the famous New

  11. Suntech Power

    Institute of Scientific and Technical Information of China (English)

    BRAKLEY GARDNER

    2008-01-01

    @@ Why the new US president could provide a boost for China's largest solar firm Back in the glory days of China investing, Suntech Power (尚德太阳能电力), China's largest solar com-pany, benefited from both inves-tor interest during China's stock market boom, and the growing demand for solar technologies worldwide, as governments be-gan implementing a raft of new measures providing assistance to renewable energy companies.

  12. BRICS Power

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    When Goldman Sachs economist Jim O’Neill coined the acronym BRIC to describe collectively Brazil,Russia,India and China,the world mainly regarded it as one of the easy-come,easy-go terms in economics.A decade later,O’Neill’s concept is not forgotten.It is successfully playing an historic role in representing the shift in global economic power away

  13. The geothermal power organization

    Energy Technology Data Exchange (ETDEWEB)

    Scholl, K.L. [National Renewable Energy Lab., Golden, CO (United States)

    1997-12-31

    The Geothermal Power Organization is an industry-led advisory group organized to advance the state-of-the-art in geothermal energy conversion technologies. Its goal is to generate electricity from geothermal fluids in the most cost-effective, safe, and environmentally benign manner possible. The group achieves this goal by determining the Member`s interest in potential solutions to technological problems, advising the research and development community of the needs of the geothermal energy conversion industry, and communicating research and development results among its Members. With the creation and adoption of a new charter, the Geothermal Power Organization will now assist the industry in pursuing cost-shared research and development projects with the DOE`s Office of Geothermal Technologies.

  14. Construction of Harmonious Power Serves Harmonious Society

    Institute of Scientific and Technical Information of China (English)

    Wang Yeping

    2007-01-01

    @@ On November 23-24, 2006, the "Forum on Harmonious Power," famed as a meeting of mobilizing and pledging mass effort to construct harmonious power industry, was grandly held in Beijing. All big power bosses attended the Forum. Since separation of power plants from power grids, it was the first time that power industry appeared as a closely tightened group and earnestly declared and solemnly promised to construct harmonious power for the society. Mr.Wang Yeping, Vice-Chairman of the State Electricity Regulatory Commission, presented a keynote address on the Forum. Here is an abridgement of the address.

  15. Power plant siting

    Energy Technology Data Exchange (ETDEWEB)

    Winter, J.V.; Conner, D.A.

    1978-01-01

    Just to keep up with expected demand, the US will need over 500 new power generation units by 1985. Where these power plants will be located is the subject of heated debate among utility officials, government leaders, conservationists, concerned citizens and a multitude of special interest groups. This book offers a balanced review of all of the salient factors that must be taken into consideration in selecting power plant locations. To deal with this enormously complex subject, the authors (1) offer a general overview of the history and reasoning behind present legislation on the state and national levels; (2) describe the many different agencies that have jurisdiction in power plant location, from local water authorities and city councils to state conservation boards and the Nuclear Regulatory Commission; and (3) include a state-by-state breakdown of siting laws, regulations and present licensing procedures. Architects, engineers, contractors, and others involved in plant construction and site evaluation will learn of the trade-offs that must be made in balancing the engineering, economic, and environmental impacts of plant location. The book covers such areas as availability of water supplies for generation or cooling; geology, typography, and demography of the proposed site; and even the selection of the fuel best suited for the area. Finally, the authors examine the numerous environmental aspects of power plant siting.

  16. PowerPal : power up your creek

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2006-04-01

    PowerPal micro-hydro equipment was developed in Vietnam by Asian Phoenix Resources Ltd. of Victoria, BC; a company who aims to help disadvantaged people in less developed countries by making renewable energy devices available to them. The idea for the micro-hydro system was conceived after mineral exploration parties in Vietnam noted that large numbers of poor quality propeller turbines were being used to supply AC power to individual homes. A plan was developed to improve the quality and reliability of low head turbines with better castings, magnets, superior bearings and electronic load controllers. Funding for the program was initially difficult to obtain. However, PowerPal micro-hydro equipment eventually came to the attention of the World Bank as well as other government and non-governmental organizations. Financing for the purchase and installation of larger numbers of units has now been achieved, and missionary groups in various parts of the world have ordered units. European markets have also opened up, and distributors of the micro-hydro equipment have been appointed in various countries. Sales are now strong in Central America, South America, the Caribbean, Australasia, Oceania, Africa and Europe. It was concluded that the surge of interest has coincided with a steep upturn in oil prices. 8 figs.

  17. PowerPal: power up your creek

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    PowerPal micro-hydro equipment was developed in Vietnam by Asian Phoenix Resources Ltd. of Victoria, BC; a company who aims to help disadvantaged people in less developed countries by making renewable energy devices available to them. The idea for the micro-hydro system was conceived after mineral exploration parties in Vietnam noted that large numbers of poor quality propeller turbines were being used to supply AC power to individual homes. A plan was developed to improve the quality and reliability of low head turbines with better castings, magnets, superior bearings and electronic load controllers. Funding for the program was initially difficult to obtain. However, PowerPal micro-hydro equipment eventually came to the attention of the World Bank as well as other government and non-governmental organizations. Financing for the purchase and installation of larger numbers of units has now been achieved, and missionary groups in various parts of the world have ordered units. European markets have also opened up, and distributors of the micro-hydro equipment have been appointed in various countries. Sales are now strong in Central America, South America, the Caribbean, Australasia, Oceania, Africa and Europe. It was concluded that the surge of interest has coincided with a steep upturn in oil prices. 8 figs.

  18. Purchasing power.

    Science.gov (United States)

    Moore, Alison

    Nurses and GPs are working together in Shropshire to introduce clinically-led commissioning, and ensure that the new arrangements improve services despite a tough financial climate. Nursing involvement in the new clinical commissioning group is active and not 'tokenistic'.

  19. Congruence Subgroups of Hecke Groups

    Institute of Scientific and Technical Information of China (English)

    Bo CHEN; Ping Zhi YUAN

    2009-01-01

    Hecke groups are an important tool in investigating functional equations, and congruence subgroups of Hecke groups play an important rule in research of the solutions of the Dirichlet series.When q, m are two primes, congruence subgroups and the principal congruence subgroups of level m of the Hecke group H(√q) have been investigated in many papers. In this paper, we generalize these results to the case where q is a positive integer with q ≥ 5, √q ¢ Z and m is a power of an odd prime.

  20. Power and Autistic Traits

    Science.gov (United States)

    Overskeid, Geir

    2016-01-01

    Autistic traits can help people gain and sustain power, and has probably done so throughout history, says the present paper. A number of testable claims follow from this assumption. First, the powerful should have more autistic traits than others – which they do appear to have. Among other things, powerful people, and those with many autistic traits, tend to prefer solitary activities and are often aloof. Moreover, they are often rigid and socially insensitive, low on empathy and with low scores on the trait of agreeableness – and as a rule they do not have many friends. Both groups are also more self-centered than others, more honest, less submissive, more sensitive to slights, and with a stronger tendency to engage in abstract thinking. They tend to behave in bossy or dominant ways, and their moral judgment is more based on rules than on feelings. In addition to experimental evidence, I cite biographies showing that a surprising number of presidents, prime ministers and other powerful people seem to have had traits like those in question – and interestingly, in animals, leaders are often rigid and insensitive to group members’ needs and feelings, mostly acting the way they are themselves inclined to, not responding much to others. Problem solving is important in leadership, and people with many autistic traits appear often to be better thinkers than typical subjects with similar IQs. However, these and other congruities could be coincidences. Hence the question of whether traits the two groups have in common also have a common cause constitutes a strong test of the paper’s thesis – and a common cause does appear to exist, in the form of testosterone’s effects on the central nervous system. Finally, there is evidence that, other things equal, powerful men have more reproductive success than others. If men wielding power do indeed have more autistic traits than those less powerful, this will lead to, other things equal, such traits becoming more

  1. Power and Autistic Traits

    Directory of Open Access Journals (Sweden)

    Geir Overskeid

    2016-08-01

    Full Text Available Autistic traits can help people gain and sustain power, and has probably done so throughout history, says the present paper. A number of testable claims follow from this assumption. First, the powerful should have more autistic traits than others – which they do appear to have. Among other things, powerful people, and those with many autistic traits, tend to prefer solitary activities and are often aloof. Moreover, they are often rigid and socially insensitive, low on empathy and with low scores on the trait of agreeableness -- and as a rule they do not have many friends. Both groups are also more self-centered than others, more honest, less submissive, more sensitive to slights, and with a stronger tendency to engage in abstract thinking. They tend to behave in bossy or dominant ways, and their moral judgment is more based on rules than on feelings. In addition to experimental evidence, I cite biographies showing that a surprising number of presidents, prime ministers and other powerful people seem to have had traits like those in question – and interestingly, in animals, leaders are often rigid and insensitive to group members’ needs and feelings, mostly acting the way they are themselves inclined to, not responding much to others. Problem solving is important in leadership, and people with many autistic traits appear often to be better thinkers than typical subjects with similar IQs. However, these and other congruities could be coincidences. Hence the question of whether traits the two groups have in common also have a common cause constitutes a strong test of the paper’s thesis – and a common cause does appear to exist, in the form of testosterone’s effects on the central nervous system. Finally, there is evidence that, other things equal, powerful men have more reproductive success than others. If men wielding power do indeed have more autistic traits than those less powerful, this will lead to, other things equal, such traits

  2. Renormalization Group Tutorial

    Science.gov (United States)

    Bell, Thomas L.

    2004-01-01

    Complex physical systems sometimes have statistical behavior characterized by power- law dependence on the parameters of the system and spatial variability with no particular characteristic scale as the parameters approach critical values. The renormalization group (RG) approach was developed in the fields of statistical mechanics and quantum field theory to derive quantitative predictions of such behavior in cases where conventional methods of analysis fail. Techniques based on these ideas have since been extended to treat problems in many different fields, and in particular, the behavior of turbulent fluids. This lecture will describe a relatively simple but nontrivial example of the RG approach applied to the diffusion of photons out of a stellar medium when the photons have wavelengths near that of an emission line of atoms in the medium.

  3. Power Politics of Family Psychotherapy.

    Science.gov (United States)

    Whitaker, Carl A.

    It is postulated that the standard framework for psychotherapy, a cooperative transference neurosis, does not validly carry over to the successful psychotherapy of a two-generation family group. In many disturbed families, the necessary and sufficient dynamics for change must be initiated, controlled, and augmented by a group dynamic power-play,…

  4. A produção da (desinformação sobre violência: análise de uma prática discriminatória Production of (misinformation on violence: analysis of a discriminatory practice

    Directory of Open Access Journals (Sweden)

    Kathie Njaine

    1997-09-01

    Full Text Available No presente artigo, realiza-se uma reflexão crítica da qualidade da informação sobre violência no Brasil, destacando-se algumas das principais fontes primárias de dados: as Secretarias de Segurança Pública e de Polícia Civil e as Secretarias Municipais e Estaduais de Saúde. O Município do Rio de Janeiro é abordado como um "caso" exemplar nesta análise. Parte-se das hipóteses de que: (a no processo de produção dessa informação, a geração, sistematização e divulgação são de má qualidade, banalizadas, espetacularizadas e discriminatórias; (b os dados são tratados como instrumento de domínio privado e não como uma prestação de serviço ao público e refletem uma estrutura institucional autoritária e burocratizada. Constituem-se em (desinformações esvaziadas de significado sócio-político, insuficientes para informar à sociedade sobre a real expressão da violência e para a formulação de políticas públicas. Como conclusão, destaca-se a necessidade de que: 1 as informações sobre os eventos violentos sejam valorizadas desde o seu registro até o seu uso social; 2 os profissionais e as instituições envolvidas com o tema transformem estruturas e mentalidades no sentido de uma ação integrada e consciente do seu papel social; 3 a sociedade se organize e atue em conjunto contra a violência e pela valorização da vida humana.We propose a critical reflection on quality of information concerning violence in Brazil, emphasizing some of the main sources of primary data: Public Law Enforcement Departments, Police, and Municipal and State Secretaries of Health. The city of Rio de Janeiro is taken as a typical "case" in this analysis. The hypotheses are: (a in the process of producing this information, its generation, systematization, and dissemination are poor quality, thus becoming banal and revealing their discriminatory bias; (b data are treated as private tools and not as a public service, thus reflecting an

  5. Electric power generation from biogas coming from sewer treatment using a 18 kW generator group; Geracao de energia eletrica a partir do biogas proveniente do tratamento de esgoto utilizando um grupo gerador de 18 kW

    Energy Technology Data Exchange (ETDEWEB)

    Coelho, Suani Teixeira; Velazquez, Silvia Maria Stortini Gonzalez; Silva, Orlando Cristiano da; Abreu, Fernando Castro de [Universidade de Sao Paulo (USP), SP (Brazil). Inst. de Eletrotecnica e Energia. Centro Nacional de Referencia em Biomassa]. E-mail: suani@iee.usp.br; sgvelaz@iee.usp.br; gbntumbo@iee.usp.br; fcabreu@iee.usp.br

    2006-07-01

    The main objective of the effluent treatment is to correct its undesirable characteristics, however, during this process, residues like sludge and biogas are generated, and those residues can be used as raw materials. The PUREFA (Program of Rational Energy Use and Alternative Sources), compound by 14 purposes, is about a project of the USP - University of Sao Paulo, financial backer FINEP - Financier of Studies and Projects. This project had three main objectives: to implant measures of management and action of energy efficiency, to increase the distributed generation in the USP from the renewable resource and not conventional energy and to introduce incentive permanent politics to the efficient and rational use of energy. In the context, the Brazilian Reference Center on Biomass was responsible for two purposes, related to the biogas use for electricity generation. The first purpose had main objective to implant the generation system, to capture and to stock the biogas, produced by biodigestor in the Technological Hydraulically Center (CTH - USP). The biodigestor is a UASB (Upflow Anaerobic Sludge Blanket), whose outflow of the biogas produce is near 4 m{sup 3}/day, opera rates 24 hours per day and utilize the sewer from the residential buildings located in Sao Paulo University, inside the campus. For the biogas utilization, was made its outflow, chemical composition and heat value identifications, parameters that allowed to determinate the real potential for generation and to shown the necessity of the previous treatment, as H2S removal. Finished this stage, was started the next purpose, regarding biogas used as fuel for electricity generation using a generator group Otto cycle. Nowadays this project is a demonstrative project. In this article the technical and environmental project results obtained will be presented. (author)

  6. Race-Based Humor and Peer Group Dynamics in Adolescence: Bystander Intervention and Social Exclusion.

    Science.gov (United States)

    Mulvey, Kelly Lynn; Palmer, Sally B; Abrams, Dominic

    2016-09-01

    Adolescents' evaluations of discriminatory race-based humor and their expectations about peer responses to discrimination were investigated in 8th- (Mage  = 13.80) and 10th-grade (Mage  = 16.11) primarily European-American participants (N = 256). Older adolescents judged race-based humor as more acceptable than did younger adolescents and were less likely to expect peer intervention. Participants who rejected discrimination were more likely to reference welfare/rights and prejudice and to anticipate that peers would intervene. Showing awareness of group processes, adolescents who rejected race-based humor believed that peers who intervened would be more likely to be excluded. They also disapproved of exclusion more than did participants who supported race-based humor. Results expose the complexity of situations involving subtle discrimination. Implications for bullying interventions are discussed.

  7. Power Coupte

    Institute of Scientific and Technical Information of China (English)

    Zhou; Xiaoyan

    2015-01-01

    Two of China's biggest online-to-offline (020) service providers have decided to take measures to avoid a price war,opting to join forces in order to become a more formidable presence in the rapidly growing sector. 020 service providers connect online us- ers with brick-and-mortar offline services-- including group-buying deals and restaurant bookingvia the Intemet and, more frequent- ly, through smartphone applications. Meituan. corn, a group-buying site backed by China's e- commerce king Alibaba Group Holding Ltd., and consumer review service Dianpinp=com, which is funded by Tencent Holdings Ltd., China's leading online games and social-networking company, announced on October 8 that they have decided to carry out a strategic merger.

  8. Integrated Groups and Smooth Distribution Groups

    Institute of Scientific and Technical Information of China (English)

    Pedro J. MIANA

    2007-01-01

    In this paper, we prove directly that α-times integrated groups define algebra homo-morphisms. We also give a theorem of equivalence between smooth distribution groups and α-times integrated groups.

  9. Group typicality, group loyalty and cognitive development.

    Science.gov (United States)

    Patterson, Meagan M

    2014-09-01

    Over the course of childhood, children's thinking about social groups changes in a variety of ways. Developmental Subjective Group Dynamics (DSGD) theory emphasizes children's understanding of the importance of conforming to group norms. Abrams et al.'s study, which uses DSGD theory as a framework, demonstrates the social cognitive skills underlying young elementary school children's thinking about group norms. Future research on children's thinking about groups and group norms should explore additional elements of this topic, including aspects of typicality beyond loyalty.

  10. Which finite simple groups are unit groups?

    DEFF Research Database (Denmark)

    Davis, Christopher James; Occhipinti, Tommy

    2014-01-01

    We prove that if G is a finite simple group which is the unit group of a ring, then G is isomorphic to either (a) a cyclic group of order 2; (b) a cyclic group of prime order 2^k −1 for some k; or (c) a projective special linear group PSLn(F2) for some n ≥ 3. Moreover, these groups do all occur...

  11. Power optics

    Energy Technology Data Exchange (ETDEWEB)

    Apollonov, V V [A M Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

    2014-02-28

    By using the theory we developed in the early 1970s, a broad range of phenomena is considered for an optical surface of a solid body that is exposed to radiation arbitrarily varying in time and producing temperature fields, thermoelastic stresses and thermal deformations on the surface layer. The examination is based on the relations (which are similar to Duhamel's integral formula from the theory of heat conduction) between the quantities characterising the thermal stress state in any nonstationary regimes of energy input into a solid. A peculiar feature of the analysis of the thermal stress state in this case consists in the fact that this relation comprises time as a parameter, which in turn is a consequence of incoherence of the quasi-stationary problem of thermoelasticity. This phenomenon is particularly important for the optics of high-power, high-pulse repetition rate lasers, which are being actively developed. In the review, we have recently published in Laser Physics, the thermal stress state of a solid is analysed. In this state, time is treated as an independent variable used in differentiation. Such an approach greatly reduces the applicability of the method. The review published contains data on the use of capillary porous structures made of various materials with different degrees of the surface development. Moreover, such structures can be efficiently employed to increase the heat exchange at a temperature below the boiling point of the coolant. In the present review we discuss the dependences of the limiting laser intensities on the duration of a pulse or a pulse train, corresponding to the three stages of the state of the reflecting surface and leading to unacceptable elastic deformations of the surface, to the plastic yield of the material accompanied by the formation of residual stresses and to the melting of the surface layer. We also analyse the problem of heat exchange in the surface layer with a liquid metal coolant pumped through it

  12. Power optics

    Science.gov (United States)

    Apollonov, V. V.

    2014-02-01

    By using the theory we developed in the early 1970s, a broad range of phenomena is considered for an optical surface of a solid body that is exposed to radiation arbitrarily varying in time and producing temperature fields, thermoelastic stresses and thermal deformations on the surface layer. The examination is based on the relations (which are similar to Duhamel's integral formula from the theory of heat conduction) between the quantities characterising the thermal stress state in any nonstationary regimes of energy input into a solid. A peculiar feature of the analysis of the thermal stress state in this case consists in the fact that this relation comprises time as a parameter, which in turn is a consequence of incoherence of the quasi-stationary problem of thermoelasticity. This phenomenon is particularly important for the optics of high-power, high-pulse repetition rate lasers, which are being actively developed. In the review, we have recently published in Laser Physics, the thermal stress state of a solid is analysed. In this state, time is treated as an independent variable used in differentiation. Such an approach greatly reduces the applicability of the method. The review published contains data on the use of capillary porous structures made of various materials with different degrees of the surface development. Moreover, such structures can be efficiently employed to increase the heat exchange at a temperature below the boiling point of the coolant. In the present review we discuss the dependences of the limiting laser intensities on the duration of a pulse or a pulse train, corresponding to the three stages of the state of the reflecting surface and leading to unacceptable elastic deformations of the surface, to the plastic yield of the material accompanied by the formation of residual stresses and to the melting of the surface layer. We also analyse the problem of heat exchange in the surface layer with a liquid metal coolant pumped through it. The

  13. AO Group Annual Report

    Energy Technology Data Exchange (ETDEWEB)

    Olivier, S

    2005-10-04

    The Adaptive Optics (AO) Group in I Division develops and tests a broad range of advanced wavefront control technologies. Current applications focus on: Remote sensing, High power lasers, Astronomy, and Human vision. In the area of remote sensing, the AO Group leads a collaborative effort with LLNL's Nonproliferation, Arms Control & International Security (NAI) Directorate on Enhanced Surveillance Imaging. The ability to detect and identify individual people or vehicles from long-range is an important requirement for proliferation detection and homeland security. High-resolution imaging along horizontal paths through the atmosphere is limited by turbulence, which blurs and distorts the image. For ranges over {approx}one km, visible image resolution can be reduced by over an order of magnitude. We have developed an approach based on speckle imaging that can correct the turbulence-induced blurring and provide high resolution imagery. The system records a series of short exposure images which freeze the atmospheric effects. We can then estimate the image magnitude and phase using a bispectral estimation algorithm which cancels the atmospheric effects while maintaining object information at the diffraction limit of the imaging system.

  14. Dynnikov coordinates on virtual braid groups

    CERN Document Server

    Bardakov, Valerij G; Wiest, Bert

    2011-01-01

    We define Dynnikov coordinates on virtual braid groups. We prove that they are faithful invariants of virtual 2-braids, and present evidence that they are also very powerful invariants for general virtual braids.

  15. Power and corruption.

    Science.gov (United States)

    Úbeda, Francisco; Duéñez-Guzmán, Edgar A

    2011-04-01

    Cooperation is ubiquitous in the natural world. What seems nonsensical is why natural selection favors a behavior whereby individuals would lose out by benefiting their competitor. This conundrum, for almost half a century, has puzzled scientists and remains a fundamental problem in biology, psychology, and economics. In recent years, the explanation that punishment can maintain cooperation has received much attention. Individuals who punish noncooperators thrive when punishment does not entail a cost to the punisher. However when punishment is costly, cooperation cannot be preserved. Most literature on punishment fails to consider that punishers may act corruptly by not cooperating when punishing noncooperators. No research has considered that there might be power asymmetries between punishers and nonpunishers that turn one of these type of individuals more or less susceptible to experiencing punishment. Here, we formulate a general game allowing corruption and power asymmetries between punishers and nonpunishers. We show that cooperation can persist if punishers possess power and use it to act corruptly. This result provides a new interpretation of recent data on corrupt policing in social insects and the psychology of power and hypocrisy in humans. These results suggest that corruption may play an important role in maintaining cooperation in insects and human societies. In contrast with previous research, we contend that costly punishment can be beneficial for social groups. This work allows us to identify ways in which corruption can be used to the advantage of a society. © 2010 The Author(s). Evolution© 2010 The Society for the Study of Evolution.

  16. Ambivalence, prejudice and negative behavioural tendencies towards out-groups: The moderating role of attitude basis.

    Science.gov (United States)

    Costarelli, Sandro; Gerłowska, Justyna

    2015-01-01

    Two experiments explored the relations between prejudice (suppression), (cognitive) ambivalence and negative behavioural tendencies towards out-groups. The current work argues that expressing out-group ambivalence based on cognitive, but not affective, information is a strategy to justify one's otherwise suppressed prejudice, which may ultimately "cover" the discriminatory nature of out-group-directed negative behavioural tendencies. Two experiments show that (1) participants evaluating the out-group in a normative context inducing prejudice suppression are more likely to self-report ambivalent beliefs rather than ambivalent emotions concerning the out-group as compared with participants whose prejudice expression is induced and (2) high-prejudice participants compared with low-prejudice participants are more prone to out-group-directed negative behavioural tendencies when these latter are self-reported after the expression of ambivalent beliefs but not ambivalent emotions concerning the out-group, and when the expression of their prejudicial evaluations is salient but not when it is not. In light of the extent to which ambivalent attitudes towards out-groups are often seamlessly integrated into public discourse, the implications of the findings are discussed not only for intergroup research but also at the societal level.

  17. 强者理念与弱者理念的对弈论劳动法双重视角的碰撞∗%The Conflict between the Ideas of Protecting the Vulnerable Groups and the Powerful Groups Analysis of the Collision of the Double Perspectives in Labor Law

    Institute of Scientific and Technical Information of China (English)

    杜宁宁

    2016-01-01

    Labor Law regulates the labor relationship and is formulated in the priority of laborers over employing units.It can be seen from the history of the labor relationship which is the historical mission of Labor Law.Besides,due to the analysis of the modern labor relationship,the ideas of protecting vulnera-ble groups became the inevitable choice for Labor Law.During the interaction and conflict of these two theories,the ideas of protecting vulnerable groups need to be implemented,as well as rethought.To a-chieve the balance of the labor relationship,the scope of protection in Labor Law must be clear.%劳动法以劳动关系为调整对象,在劳动者与用人单位的双方主体间,劳动法选择了倾斜保护劳动者的视角并展开制度设计。从劳动关系产生的历史我们看到了劳动法诞生的历史使命,而对现代劳动关系的解析也使弱者理念成为劳动法必然的选择。在两种理念的互动、博弈中,劳动法既要贯彻倾斜保护弱者的理念,又要对劳动者弱者理念进行必要的反思,把握倾斜保护的尺度,达致劳动关系平衡协调的调整目的。

  18. Wind Power - A Power Source Enabled by Power Electronics

    DEFF Research Database (Denmark)

    Blaabjerg, Frede; Chen, Zhe

    2004-01-01

    . The deregulation of energy has lowered the investment in bigger power plants, which means the need for new electrical power sources may be very high in the near future. Two major technologies will play important roles to solve the future problems. One is to change the electrical power production sources from...... electronics is changing from being a minor energy source to be acting as an important power source. By that wind power is also getting an added value....

  19. Group Cohesion in Experiential Growth Groups

    Science.gov (United States)

    Steen, Sam; Vasserman-Stokes, Elaina; Vannatta, Rachel

    2014-01-01

    This article explores the effect of web-based journaling on changes in group cohesion within experiential growth groups. Master's students were divided into 2 groups. Both used a web-based platform to journal after each session; however, only 1 of the groups was able to read each other's journals. Quantitative data collected before and…

  20. Power management system

    Science.gov (United States)

    Algrain, Marcelo C.; Johnson, Kris W.; Akasam, Sivaprasad; Hoff, Brian D.

    2007-10-02

    A method of managing power resources for an electrical system of a vehicle may include identifying enabled power sources from among a plurality of power sources in electrical communication with the electrical system and calculating a threshold power value for the enabled power sources. A total power load placed on the electrical system by one or more power consumers may be measured. If the total power load exceeds the threshold power value, then a determination may be made as to whether one or more additional power sources is available from among the plurality of power sources. At least one of the one or more additional power sources may be enabled, if available.

  1. Group Work Publication-1991.

    Science.gov (United States)

    Zimpfer, David G.

    1992-01-01

    Lists 21 new publications in group work, of which 9 are reviewed. Those discussed include publications on group counseling and psychotherapy, structured groups, support groups, psychodrama, and social group work. (Author/NB)

  2. 含小水电群的风-水-火地区电网旋转备用协调优化策略研究%Research of spinning reserve coordination optimization strategy in the wind-hydro-thermal area power grid containing small hydropower group

    Institute of Scientific and Technical Information of China (English)

    刘志坚; 梁宁; 宋琪; 陈莎; 王明禹; 王栋栋

    2015-01-01

    传统旋转备用计算模型已不再适用于含小水电群和风电接入的地区电网。以负荷损失较小、清洁能源利用率高、运行成本低为目标,基于最小火电燃料费用、最小期望停电成本、最小火电机组出力波动和最小主力水电弃水量函数模型,建立了考虑风-水-火协调运行的多目标旋转备用优化模型。采用引入粒子浓度认知的改进粒子群优化算法,通过仿真分析,验证了该模型的适用性和有效性。在不同策略下进行比较,该方法能在较低的失负荷概率情况下,得到较低的火电机组燃料费用;能随着小水电群和风电出力大小协调优化旋转备用容量。该模型及算法对存在相当规模小水电及风电的风-水-火地区电网制定旋转备用优化策略有参考价值。%The conventional calculation model of spinning reserve is no longer applicable to the regional power grid group which contains small hydro and wind power access. Aiming at lower loss of load, higher utility of clean source and less cost of operation, based on the function models of the lowest thermal power fuel cost, the minimum expected outage expense, the least thermal power output fluctuation and the least abandoned water of main hydropower plants, a multi-objective optimization model is built considering the wind-water-fire power coordinated operation. The improved particle swarm optimization algorithm introducing particle concentration cognitive is used. By simulating and analyzing, the applicability and validity is verified. To compare them under different strategies, this method can get less fuel expenses of thermal power units in the case of lower loss of load probability (LOLP); optimize the spinning reserve capacity with the small hydropower and wind power output size. The model and the algorithm are helpful for drawing up optimization strategies of the reserve capacity in those regions of wind-hydro-thermal grid in which

  3. Group theories: relevance to group safety studies.

    Science.gov (United States)

    Benevento, A L

    1998-01-01

    Promoting safety in the workplace has been attempted in a variety of ways. Increasingly, industries are using groups such as safety teams and quality circles to promote worker safety. Group influences on individual behavior and attitudes have long been studied in the social psychology literature, but the theories have not been commonly found outside the psychology arena. This paper describes the group theories of group polarization, risky shift, social loafing, groupthink and team think and attempts to apply these theories to existing studies that examine work group influences on safety. Interesting parallels were found but only one study examined group influences as their primary focus of research. Since groups are increasingly used for safety promotion, future research on safety that studies group influences with respect to current group theories is recommended.

  4. Power Sources for Ultra Low Power Electronics

    Science.gov (United States)

    2000-06-12

    DARPA asked JASON to examine the issue of power sources for low power electronics with a specific emphasis on the properties of nuclear batteries and...integrated power sources combining power and electronics. During the 1998 Summer Study a workshop was held to provide background for the study, with

  5. Hercules and Barbie? Reflections on the influence of pornography and its spread in the media and society in groups of adolescents in Sweden.

    Science.gov (United States)

    Mattebo, Magdalena; Larsson, Margareta; Tydén, Tanja; Olsson, Tove; Häggström-Nordin, Elisabet

    2012-02-01

    To describe and get a deeper understanding of how groups of young women and men reflect on and discuss pornography and its spread in the media and society, and its possible influence on sexual behaviour and relationships. Six focus group interviews were conducted with teenagers, three with women (n = 17) and three with men (n = 18). Open questions about pornography and its spread in the media and society were discussed. The interviews were tape-recorded and transcribed verbatim. Data were analysed according to Grounded Theory. The core category 'A discriminatory sexuality' illustrates how participants felt regarding the messages conveyed by pornography portraying a man's role as dominant and a woman's role as subordinate. Pornographic messages were described as 'Fiction' depicting a distorted reality. Feelings of ambivalence towards pornography were expressed: anxiety and fear, but also inspiration. Participants said pornography occurred everywhere in the media and society, and felt pressured by messages relating to looks and sexual techniques. Pornography and its spread in the media and society were considered as presenting a discriminatory image of body ideals, sexuality and relationships. Despite this awareness, both men and women considered pornography as sources of knowledge and inspiration: an apparent paradox.

  6. Power theories for improved power quality

    CERN Document Server

    Pasko, Marian

    2012-01-01

    Power quality describes a set of parameters of electric power and the load’s ability to function properly under specific conditions. It is estimated that problems relating to power quality costs the European industry hundreds of billions of Euros annually. In contrast, financing for the prevention of these problems amount to fragments of these costs. Power Theories for Improved Power Quality addresses this imbalance by presenting and assessing a range of methods and problems related to improving the quality of electric power supply. Focusing particularly on active compensators and the DSP based control algorithms, Power Theories for Improved Power Quality introduces the fundamental problems of electrical power. This introduction is followed by chapters which discuss: •‘Power theories’ including their historical development and application to practical problems, •operational principles of active compensator’s DSP control based algorithms using examples and results from laboratory research, and •t...

  7. Women, Power, and Libraries.

    Science.gov (United States)

    Schuman, Patricia Glass

    1984-01-01

    Discusses the concept of power in the context of women and the library profession, citing views of power by Max Weber, John Kenneth Galbraith, Letty Cottin Pogrebin, and Rosabeth Moss Kantor. Male power and female submission, defining power, organizing for power, and sharing power are highlighted. A 12-item bibliography is included. (EJS)

  8. Discriminative power of Campylobacter phenotypic and genotypic typing methods.

    Science.gov (United States)

    Duarte, Alexandra; Seliwiorstow, Tomasz; Miller, William G; De Zutter, Lieven; Uyttendaele, Mieke; Dierick, Katelijne; Botteldoorn, Nadine

    2016-06-01

    The aim of this study was to compare different typing methods, individually and combined, for use in the monitoring of Campylobacter in food. Campylobacter jejuni (n=94) and Campylobacter coli (n=52) isolated from different broiler meat carcasses were characterized using multilocus sequence typing (MLST), flagellin gene A restriction fragment length polymorphism typing (flaA-RFLP), antimicrobial resistance profiling (AMRp), the presence/absence of 5 putative virulence genes; and, exclusively for C. jejuni, the determination of lipooligosaccharide (LOS) class. Discriminatory power was calculated by the Simpson's index of diversity (SID) and the congruence was measured by the adjusted Rand index and adjusted Wallace coefficient. MLST was individually the most discriminative typing method for both C. jejuni (SID=0.981) and C. coli (SID=0.957). The most discriminative combination with a SID of 0.992 for both C. jejuni and C. coli was obtained by combining MLST with flaA-RFLP. The combination of MLST with flaA-RFLP is an easy and feasible typing method for short-term monitoring of Campylobacter in broiler meat carcass.

  9. Wind power - a power source now enabled by power electronics

    DEFF Research Database (Denmark)

    Blaabjerg, Frede; Iov, Florin

    2007-01-01

    energy at the end-user should be set up. Deregulation of energy has lowered the investment in larger power plants, which means the need for new electrical power sources may be increased in the near future. Two major technologies will play important roles to solve the future problems. One is to change...... the electrical power production sources from the conventional, fossil (and short term) based energy sources to renewable energy resources. Another is to use high efficient power electronics in power generation, power transmission/distribution and end-user application. This paper discuss the most emerging...... renewable energy sources, wind energy, which by means of power electronics are changing from being minor energy sources to be acting as important power sources in the energy system....

  10. Magnetic translation groups as group extension

    OpenAIRE

    Florek, Wojciech

    1998-01-01

    Extensions of a direct product T of two cyclic groups Z_n1 and Z_n2 by an Abelian (gauge) group G with the trivial action of T on G are considered. All possible (nonequivalent) factor systems are determined using the Mac Lane method. Some of resulting groups describe magnetic translation groups. As examples extensions with G=U(1) and G=Z_n are considered and discussed.

  11. Group Dynamic Processes in Email Groups

    Science.gov (United States)

    Alpay, Esat

    2005-01-01

    Discussion is given on the relevance of group dynamic processes in promoting decision-making in email discussion groups. General theories on social facilitation and social loafing are considered in the context of email groups, as well as the applicability of psychodynamic and interaction-based models. It is argued that such theories may indeed…

  12. Interagency mechanical operations group numerical systems group

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-09-01

    This report consists of the minutes of the May 20-21, 1971 meeting of the Interagency Mechanical Operations Group (IMOG) Numerical Systems Group. This group looks at issues related to numerical control in the machining industry. Items discussed related to the use of CAD and CAM, EIA standards, data links, and numerical control.

  13. AREVA group overview; Presentation du groupe AREVA

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-02-08

    This document presents the Group Areva, a world nuclear industry leader, from a financial holding company to an industrial group, operating in two businesses: the nuclear energy and the components. The structure and the market of the group are discussed, as the financial assets. (A.L.B.)

  14. State power plant productivity programs

    Energy Technology Data Exchange (ETDEWEB)

    1981-02-01

    The findings of a working group formed to review the status of efforts by utilities and utility regulators to increase the availability and reliability of generating units are presented. Representatives from nine state regulatory agencies, NRRI, and DOE, participated on the Working Group. The Federal government has been working cooperatively with utilities, utility organizations, and with regulators to encourage and facilitate improvements in power plant productivity. Cooperative projects undertaken with regulatory and energy commissions in California, Illinois, New York, Ohio, Texas, North Carolina and Mighigan are described. Following initiation of these cooperative projects, DOE funded a survey to determine which states were explicitly addressing power plant productivity through the regulatory process. The Working Group was formed following completion of this survey. The Working Group emphasized the need for those power plant productivity improvements which are cost effective. The cost effectiveness of proposed availability improvement projects should be determined within the context of opportunities for operating and capital improvements available to an entire utility. The Working Group also identified the need for: allowing for plant designs that have a higher construction cost, but are also more reliable; allowing for recovery and reducing recovery lags for productivity-related capital expenditures; identifying and reducing disincentives in the regulatory process; ascertaining that utilities have sufficient money available to undertake timely maintenance; and support of EPRI and NERC to develop a relevant and accurate national data base. The DOE views these as extremely important aspects of any regulatory program to improve power plant productivity.

  15. Wind power - a power source now enabled by power electronics

    DEFF Research Database (Denmark)

    Blaabjerg, Frede; Iov, Florin

    2007-01-01

    energy at the end-user should be set up. Deregulation of energy has lowered the investment in larger power plants, which means the need for new electrical power sources may be increased in the near future. Two major technologies will play important roles to solve the future problems. One is to change...... renewable energy sources, wind energy, which by means of power electronics are changing from being minor energy sources to be acting as important power sources in the energy system....

  16. Cluster functional renormalization group

    Science.gov (United States)

    Reuther, Johannes; Thomale, Ronny

    2014-01-01

    Functional renormalization group (FRG) has become a diverse and powerful tool to derive effective low-energy scattering vertices of interacting many-body systems. Starting from a free expansion point of the action, the flow of the RG parameter Λ allows us to trace the evolution of the effective one- and two-particle vertices towards low energies by taking into account the vertex corrections between all parquet channels in an unbiased fashion. In this work, we generalize the expansion point at which the diagrammatic resummation procedure is initiated from a free UV limit to a cluster product state. We formulate a cluster FRG scheme where the noninteracting building blocks (i.e., decoupled spin clusters) are treated exactly, and the intercluster couplings are addressed via RG. As a benchmark study, we apply our cluster FRG scheme to the spin-1/2 bilayer Heisenberg model (BHM) on a square lattice where the neighboring sites in the two layers form the individual two-site clusters. Comparing with existing numerical evidence for the BHM, we obtain reasonable findings for the spin susceptibility, the spin-triplet excitation energy, and quasiparticle weight even in coupling regimes close to antiferromagnetic order. The concept of cluster FRG promises applications to a large class of interacting electron systems.

  17. Postcolonial Powers of Opposition in Octavia Butler’s Kindred

    Directory of Open Access Journals (Sweden)

    Thamer Amer JubouriAl_Ogaili

    2016-03-01

    Full Text Available This study will examine postcolonial powers of opposition in Octavia Butler’s Kindred (1979; through Homi Bhabha’s concept of ambivalence and Edward Said’s self-other relationship. By using these concepts, this research aims to unravel how the colonized and the colonizer perceive each in the selected works. It will offer an in-depth analysis of the thematic and ideological characteristics of selected works. Thus, the focus will mainly be on the theme of the mutual relationship between the colonized and the colonizer in the selected works. This relationship is specified to the concept of ambivalence. This concept incarnates the dual, yet, uncontrolled relationship between the colonized and the colonizer. Nevertheless, the colonized considers the colonizer as oppressive but an envious power; and the colonizer judges the colonized as inferior but indigenous. The colonial relationship will also be revealed by using the concept of self-other. Such concept scrutinizes the way the colonized and the colonizer perceive and resist each other. Accordingly, the research’s main focus point is the power relationship developed in the light of colonial ambivalence and self-other continuum. The research’s methodology relies on Bhabha’s concept of ambivalence and Edward Said’s self-other relationship.  In The Location of Culture (1994, Bhabha maintains that the concept of ambivalence conveys “the exercise of colonialist authority, however, requires the production of differentiations, individuations, identity effects through which discriminatory practices can map out subject populations that are tarred with the visible and transparent mark of power” (111. Edward Said, in his discussion of self-other relationship in Orientalism (1979, argues that self-other relationship is “the vacillation [inconstancy] between the familiar [self] and the alien [other]” (72. Keywords: Ambivalence, Butler, Hegemony, Postcolonialism, Self-Other Relationship

  18. Nuclear power industry

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-04-28

    This press dossier presented in Shanghai (China) in April 1999, describes first the activities of the Framatome group in the people`s republic of China with a short presentation of the Daya Bay power plant and of the future Ling Ao project, and with a description of the technological cooperation with China in the nuclear domain (technology transfers, nuclear fuels) and in other industrial domains (mechanics, oil and gas, connectors, food and agriculture, paper industry etc..). The general activities of the Framatome group in the domain of energy (nuclear realizations in France, EPR project, export activities, nuclear services, nuclear fuels, nuclear equipments, industrial equipments) and of connectors engineering are presented in a second and third part with the 1998 performances. (J.S.)

  19. Do dimensions of ethnic identity mediate the association between perceived ethnic group discrimination and depressive symptoms?

    Science.gov (United States)

    Brittian, Aerika S; Kim, Su Yeong; Armenta, Brian E; Lee, Richard M; Umaña-Taylor, Adriana J; Schwartz, Seth J; Villalta, Ian K; Zamboanga, Byron L; Weisskirch, Robert S; Juang, Linda P; Castillo, Linda G; Hudson, Monika L

    2015-01-01

    Ethnic group discrimination represents a notable risk factor that may contribute to mental health problems among ethnic minority college students. However, cultural resources (e.g., ethnic identity) may promote psychological adjustment in the context of group-based discriminatory experiences. In the current study, we examined the associations between perceptions of ethnic group discrimination and depressive symptoms, and explored dimensions of ethnic identity (i.e., exploration, resolution, and affirmation) as mediators of this process among 2,315 ethnic minority college students (age 18 to 30 years; 37% Black, 63% Latino). Results indicated that perceived ethnic group discrimination was associated positively with depressive symptoms among students from both ethnic groups. The relationship between perceived ethnic group discrimination and depressive symptoms was mediated by ethnic identity affirmation for Latino students, but not for Black students. Ethnic identity resolution was negatively and indirectly associated with depressive symptoms through ethnic identity affirmation for both Black and Latino students. Implications for promoting ethnic minority college students' mental health and directions for future research are discussed. (PsycINFO Database Record (c) 2015 APA, all rights reserved).

  20. About group digital signatures

    National Research Council Canada - National Science Library

    Adriana Cristina Enache

    2012-01-01

    ...).A group digital signature is a digital signature with enhanced privacy features that allows members of a given group to anonymously sign messages on behalf of the group, producing a group signature...

  1. Power Sharing Courts

    Directory of Open Access Journals (Sweden)

    Stefan Graziadei

    2016-06-01

    Full Text Available In this paper, I introduce a novel concept, the one of power sharing courts. Scholars of judicial politics look at the reasons behind judicial selection and the patterns of decision making within courts through the lens of ideology (left-right. However, the resulting fertile scholarly analysis has not been extended to divided societies, where the main cleavages are not partisan but ethno-national. In these societies, the liberal model of selecting judges and taking decisions within an apex court is often corrected to specifically include politically salient ascriptive cleavages (such as ethnicity/nationality/language/religion. The main thrust of my argument is that there is a model of selecting judges, taking decisions and sharing posts of influence within apex courts in divided societies that has not yet been conceptually captured: power sharing courts. In analogy to consociationalism in the political system, power sharing in the judiciary aims to solve salient inter-community conflicts by including all relevant groups in these bodies on a basis of parity or proportionality. The paper is of equal interest to scholars of constitutional courts, consociationalists, comparatists, as well as country specialists.

  2. Dynamic power flow controllers

    Science.gov (United States)

    Divan, Deepakraj M.; Prasai, Anish

    2017-03-07

    Dynamic power flow controllers are provided. A dynamic power flow controller may comprise a transformer and a power converter. The power converter is subject to low voltage stresses and not floated at line voltage. In addition, the power converter is rated at a fraction of the total power controlled. A dynamic power flow controller controls both the real and the reactive power flow between two AC sources having the same frequency. A dynamic power flow controller inserts a voltage with controllable magnitude and phase between two AC sources; thereby effecting control of active and reactive power flows between two AC sources.

  3. I am my (high-power) role: power and role identification.

    Science.gov (United States)

    Joshi, Priyanka D; Fast, Nathanael J

    2013-07-01

    Research indicates that power liberates the self, but findings also show that the powerful are susceptible to situational influences. The present article examines whether enacting roles that afford power leads people to identify with the roles or, instead, liberates them from role expectations altogether. The results of three experiments support the hypothesis that power enhances role identification. Experiment 1 showed that enacting a particular role resulted in greater implicit and explicit role identification when the role contained power. In Experiment 2, infusing a role with power resulted in greater role identification and role-congruent behavior. Experiment 3 demonstrated that power resulted in greater role-congruent self-construal, such that having power in a close relationship caused participants to define themselves relationally, whereas having power in a group situation caused participants to embrace a collective self-construal. Implications for research on power, roles, and the self are discussed.

  4. Isometric strength, sprint power, and aerobic power in individuals with a spinal cord injury

    NARCIS (Netherlands)

    Janssen, T W; van Oers, C A; Hollander, A P; Veeger, DirkJan (H. E. J.); van der Woude, L H

    1993-01-01

    This study investigated in rather specific wheelchair tests the relationships among estimates of isometric upper-body strength (Fiso), sprint power (P30), aerobic power (VO2peak), and maximal power output (POaer) in a group of 44 men (age 34 +/- 12 yr) with longstanding spinal cord injuries ranging

  5. Wind Tunnel Test Study of Wind Power Generation Feasibility on Tall Building by Considering Group Effect%考虑群体效应的高层建筑风力发电可行性风洞试验研究

    Institute of Scientific and Technical Information of China (English)

    刘国光; 武志玮; 徐有华

    2015-01-01

    为研究建筑群体效应对超高层建筑风荷载及风力发电能力的影响,对某250 m高大底盘、双塔体型不规则超高层建筑进行了缩尺模型风洞试验研究,通过风气候分析计算了建筑场地1年、5年和10年的低重现期风速及排除台风影响的设计风剖面,分别考虑了当前周边建筑群体和未来周边建筑群体两种群体效应工况,根据试验结果计算了该结构考虑群体效应的基底等效风荷载反力、各立面风压分布和风机发电效率。结果表明,建筑外形不规则的双塔对气流有明显的改变且作用效果不同于常规矩形超高层建筑,配合楼层平面尺寸逐层缩小,有效缓和了竖向风荷载在建筑高度上的分布。受群体效应影响,在当前和未来周边建筑群两种工况下,双塔两个主轴方向基底等效风荷载结果变化明显;裙房高度风压分布变化尤为显著,给该处风机取风口的设置造成困难;塔楼竖向风压分布发生改变,影响了风机发电效率。因此设计时须考虑群体效应影响,合理选择风机取风口位置以避免周边建筑群体改变对风力发电的不利影响。%In order to analyze the influences of building group effects on wind load and wind power generation for supper tall building, wind tunnel test of a 250 meters high building with huge basement and two irregular shaped towers was conducted by small-scale models. Low returned period wind speed of 1 year, 5year and 10 years of the construction ground and designed wind speed sections without the typhoon influences were achieved by wind climate analysis. And two group effects conditions of current surrounding buildings group and future buildings group were simulated and compared. By the wind tunnel test results, equivalent static wind loads of base level, wind pressure distributions and efficiency of wind power generation of the supper tall building were obtained. The results

  6. Research Developments on Power System Integration of Wind Power

    DEFF Research Database (Denmark)

    Chen, Zhe; Hansen, Jens Carsten; Qiuwei, Wu

    2011-01-01

    variability and prediction, wind power plant ancillary services, grid connection and operation, Smart grids and demand side management under market functionality. The topics of the first group of PhD program starting 2011 under the wind energy Sino-Danish Centre for Education & Research (SDC) are also...

  7. Research Developments on Power System Integration of Wind Power

    DEFF Research Database (Denmark)

    Chen, Zhe; Hansen, Jens Carsten; Wu, Qiuwei

    2011-01-01

    variability and prediction, wind power plant ancillary services, grid connection and operation, Smart grids and demand side management under market functionality. The topics of the first group of PhD program starting 2011 under the wind energy Sino-Danish Centre for Education & Research (SDC) are also...

  8. Introduction to Sporadic Groups

    Directory of Open Access Journals (Sweden)

    Luis J. Boya

    2011-01-01

    Full Text Available This is an introduction to finite simple groups, in particular sporadic groups, intended for physicists. After a short review of group theory, we enumerate the 1+1+16=18 families of finite simple groups, as an introduction to the sporadic groups. These are described next, in three levels of increasing complexity, plus the six isolated ''pariah'' groups. The (old five Mathieu groups make up the first, smallest order level. The seven groups related to the Leech lattice, including the three Conway groups, constitute the second level. The third and highest level contains the Monster group M, plus seven other related groups. Next a brief mention is made of the remaining six pariah groups, thus completing the 5+7+8+6=26 sporadic groups. The review ends up with a brief discussion of a few of physical applications of finite groups in physics, including a couple of recent examples which use sporadic groups.

  9. Multicultural Group Work: A Force for Developing and Healing

    Science.gov (United States)

    Anderson, Donald

    2007-01-01

    Multicultural group work represents a powerful tool for helping and healing in the context of human diversity. This article summarizes multicultural group work, including task, psychoeducational, counseling, and psychotherapy groups, and describes a group work model for multicultural assessment, diagnosis, and treatment planning. Group work…

  10. Solar powered multipurpose remotely powered aircraft

    Science.gov (United States)

    1991-01-01

    Environmental problems such as the depletion of the ozone layer and air pollution demand a change in traditional means of propulsion that is sensitive to the ecology. Solar-powered propulsion is a favorable alternative that is both ecologically harmless as well as cost effective. Integration of solar energy into designs ranging from futuristic vehicles to heating is, therefore, beneficial to society. The design and construction of a Multipurpose Remotely Piloted Vehicle (MPRPV) seeks to verify the feasibility of using solar propulsion as a primary fuel source. This task has been a year-long effort by a group of eight students, divided into four teams, each dealing with different aspects of the design. The aircraft was designed to take off, climb to the design altitude, fly in a sustained figure-eight flight path, and cruise for approximately one hour. This mission requires flight at Reynolds numbers between 150,000 and 200,000 and demands special considerations in the aerodynamic design to achieve flight in this regime. Optimal performance requires a lightweight configuration with both structural integrity and maximum power availability. The structural design and choice of solar cells for the propulsion were governed by weight, efficiency, and cost considerations. The final design is an MPRPV weighing 35 N that cruises at 7 m/s at the design altitude of 50 m. The configuration includes a wing composed of balsa and foam NACA 6409 airfoil sections and carbon fiber spars, a tail of similar construction, and a truss structure fuselage. The propulsion system consists of 98 12.5 percent-efficient solar cells donated by Mobil Solar, a NiCad battery for energy storage, and a folding propeller regulated by a lightweight and efficient control system. The airfoils and propeller chosen for the design were researched and tested during the design process.

  11. Power electronics for low power arcjets

    Science.gov (United States)

    Hamley, John A.; Hill, Gerald M.

    1991-01-01

    In anticipation of the needs of future light-weight low-power spacecraft, arcjet power electronics in the 100- to 400-W operating range were developed. Power topologies similar to those in the higher 2-kW and 5- to 30-kW power range were implemented, including a four-transistor bridge-switching circuit, current-mode pulse-width modulated control, and an output current averaging inductor with an integral pulse generation winding. Reduction of switching transients was accomplished using a low inductance power distribution network, and no passive snubber circuits were necessary for power switch protection. Phase shift control of the power bridge was accomplished using an improved pulse width modulation to phase shift converter circuit. These features, along with conservative magnetics designs, allowed power conversion efficiencies of greater than 92.5 percent to be achieved into resistive loads over the entire operating range of the converter.

  12. Research on advantageous event-groups of Chinese swimming in the Olympic Games-Compared with world powers on swimming%奥运会我国游泳优势项目群的研究--基于与世界游泳强国的比较

    Institute of Scientific and Technical Information of China (English)

    辛锋; 杨献南; 支强

    2015-01-01

    运用文献资料、逻辑分析及数理统计等方法,以第25~30届奥运会各国游泳运动项目奖牌数为依据,以比较优势理论为工具,对奥运会游泳运动强国优势项目群动态变化进行对比分析。研究结果表明:第25~30届奥运会我国游泳队经历了“高潮—低谷—高潮”的“V型”发展脉络;各游泳强国不同优势项目群其比较优势指数亦不同;优势项目群与美国重叠最多,与日本重叠最少,蝶泳是与其他游泳强国重叠最少的项目群;在蝶泳项目群上,美国呈现出稳定的发展态势,其地位不可撼动,而澳大利亚却呈现出逐渐下滑的发展态势;在短距离自由泳项目群上,美国短距离自由泳项目群绝对优势指数虽不稳定,但其波动性较小。俄罗斯一直呈现出低水平发展的态势。而法国和荷兰绝对优势指数一直攀升,成为我国的主要竞争对手,对我国形成了巨大的冲击。%Using literature,logical analysis and mathematical statistics,based on national swimming medals of the 25-30th Olympic Games and by means of comparative advantage theory,it analyzes dynamic changes of advantageous event-groups of swimming of power nations in the Olympic Games.The results show that swimming team in our nation has experienced "V"type development,namely "high -low -high"in the 25-30th Olympic Games.The comparative index of world swimming power with respectively advantageous event-groups is different.China has the largest overlapping with the United States and the smallest with Japan in advantageous event-groups.Compared with other nations,the event-groups with the least overlapping is butterfly.In the event-groups of butterfly,the United States shows the steady trend of development and its position cannot be shaken.Instead,the Australia presents a declining trend.The United States'absolute advantage index of short distance freestyle event-groups is not stable but its

  13. Hardware Accelerated Power Estimation

    CERN Document Server

    Coburn, Joel; Raghunathan, Anand

    2011-01-01

    In this paper, we present power emulation, a novel design paradigm that utilizes hardware acceleration for the purpose of fast power estimation. Power emulation is based on the observation that the functions necessary for power estimation (power model evaluation, aggregation, etc.) can be implemented as hardware circuits. Therefore, we can enhance any given design with "power estimation hardware", map it to a prototyping platform, and exercise it with any given test stimuli to obtain power consumption estimates. Our empirical studies with industrial designs reveal that power emulation can achieve significant speedups (10X to 500X) over state-of-the-art commercial register-transfer level (RTL) power estimation tools.

  14. Switching power converters medium and high power

    CERN Document Server

    Neacsu, Dorin O

    2013-01-01

    An examination of all of the multidisciplinary aspects of medium- and high-power converter systems, including basic power electronics, digital control and hardware, sensors, analog preprocessing of signals, protection devices and fault management, and pulse-width-modulation (PWM) algorithms, Switching Power Converters: Medium and High Power, Second Edition discusses the actual use of industrial technology and its related subassemblies and components, covering facets of implementation otherwise overlooked by theoretical textbooks. The updated Second Edition contains many new figures, as well as

  15. Safety of power transformers, power supplies, reactors and similar products - Part 1: General requirements and tests

    CERN Document Server

    International Electrotechnical Commission. Geneva

    1998-01-01

    This International Standard deals with safety aspects of power transformers, power supplies, reactors and similar products such as electrical, thermal and mechanical safety. This standard covers the following types of dry-type transformers, power supplies, including switch mode power supplies, and reactors, the windings of which may be encapsulated or non-encapsulated. It has the status of a group safety publication in accordance with IEC Guide 104.

  16. Sector 7-8 powered up

    CERN Multimedia

    2007-01-01

    1. Frédéric Gicquel from the Cryogenics for Accelerators Group (AT/ACR) and Anupama Kulkarni from the Magnets and Electrical Systems Group (AT/MEL) at the CERN Control Centre during the powering-up of Sector 7-8. 2. Frédérick Bordry, leader of the Power Converter Group (AB/PO), and Roberto Saban, responsible for coordinating the LHC commissioning (TS/HDO), celebrate the end of the first powering-up of an entire LHC sector: Sector 7-8.

  17. Electrical Power Converter

    NARCIS (Netherlands)

    Ferreira, J.A.

    2014-01-01

    Electrical power converter for converting electrical power of a power source connected or connectable at an input to electrical DC-power at an output, wherein between the input and the output a first circuit of submodules is provided, wherein said first circuit of submodules and the power source for

  18. Power flow controller

    NARCIS (Netherlands)

    Ferreira, J.A.; Yuan, Z.; De Haan, S.W.H.

    2008-01-01

    The invention relates to a power flow controller, comprising at least one first converter coupled with a power transmission line, and at least one second converter coupled with a power source, wherein said power source operates at a predeter-mined first frequency and connects to the power transmissi

  19. Advanced Power Electronics and Electric Motors Annual Report -- 2013

    Energy Technology Data Exchange (ETDEWEB)

    Narumanchi, S. [National Renewable Energy Lab. (NREL), Golden, CO (United States); Bennion, K. [National Renewable Energy Lab. (NREL), Golden, CO (United States); DeVoto, D. [National Renewable Energy Lab. (NREL), Golden, CO (United States); Moreno, G. [National Renewable Energy Lab. (NREL), Golden, CO (United States); Rugh, J. [National Renewable Energy Lab. (NREL), Golden, CO (United States); Waye, S. [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2015-01-01

    This report describes the research into advanced liquid cooling, integrated power module cooling, high temperature air cooled power electronics, two-phase cooling for power electronics, and electric motor thermal management by NREL's Power Electronics group in FY13.

  20. Power in Transition: Empowering Discourses on Sustainability Transitions

    NARCIS (Netherlands)

    F. Avelino (Flor)

    2011-01-01

    textabstractThis is a book about power and transformative change. It explores how groups of people who are trying to transform the mobility system are affected by notions of change and power, and how they deal with the dilemmas of power. Academic literature on power and transitions offers concepts

  1. Power in Transition: Empowering Discourses on Sustainability Transitions

    NARCIS (Netherlands)

    F. Avelino (Flor)

    2011-01-01

    textabstractThis is a book about power and transformative change. It explores how groups of people who are trying to transform the mobility system are affected by notions of change and power, and how they deal with the dilemmas of power. Academic literature on power and transitions offers concepts t

  2. Group Work: How to Use Groups Effectively

    Science.gov (United States)

    Burke, Alison

    2011-01-01

    Many students cringe and groan when told that they will need to work in a group. However, group work has been found to be good for students and good for teachers. Employers want college graduates to have developed teamwork skills. Additionally, students who participate in collaborative learning get better grades, are more satisfied with their…

  3. Free Boolean Topological Groups

    Directory of Open Access Journals (Sweden)

    Ol’ga Sipacheva

    2015-11-01

    Full Text Available Known and new results on free Boolean topological groups are collected. An account of the properties that these groups share with free or free Abelian topological groups and properties specific to free Boolean groups is given. Special emphasis is placed on the application of set-theoretic methods to the study of Boolean topological groups.

  4. Wind Power - A Power Source Enabled by Power Electronics

    DEFF Research Database (Denmark)

    Blaabjerg, Frede; Chen, Zhe

    2004-01-01

    The global electrical energy consumption is still rising and there is a steady demand to increase the power capacity. The production, distribution and the use of the energy should be as technological efficient as possible and incentives to save energy at the end-user should be set up. The deregul......The global electrical energy consumption is still rising and there is a steady demand to increase the power capacity. The production, distribution and the use of the energy should be as technological efficient as possible and incentives to save energy at the end-user should be set up....... The deregulation of energy has lowered the investment in bigger power plants, which means the need for new electrical power sources may be very high in the near future. Two major technologies will play important roles to solve the future problems. One is to change the electrical power production sources from...... the conventional, fossil (and short term) based energy sources to renewable energy sources. The other is to use high efficient power electronics in power systems, power production and end-user application. This paper discuss the most emerging renewable energy source, wind energy, which by means of power...

  5. Wind power in modern power systems

    DEFF Research Database (Denmark)

    Chen, Zhe

    2013-01-01

    In recent years, wind power is experiencing a rapid growth, and large-scale wind turbines/wind farms have been developed and connected to power systems. However, the traditional power system generation units are centralized located synchronous generators with different characteristics compared...... with wind turbines. This paper presents an overview of the issues about integrating large-scale wind power plants into modern power systems. Firstly, grid codes are introduced. Then, the main technical problems and challenges are presented. Finally, some possible technical solutions are discussed....

  6. MSUD Family Support Group

    Science.gov (United States)

    ... Group The MSUD Family Support Group is a non-profit 501 (c)(3) organization for those with MSUD ... Family Support Group is a 501(c)(3) non-profit organization with no paid staff. Funds are needed ...

  7. Profinite graphs and groups

    CERN Document Server

    Ribes, Luis

    2017-01-01

    This book offers a detailed introduction to graph theoretic methods in profinite groups and applications to abstract groups. It is the first to provide a comprehensive treatment of the subject. The author begins by carefully developing relevant notions in topology, profinite groups and homology, including free products of profinite groups, cohomological methods in profinite groups, and fixed points of automorphisms of free pro-p groups. The final part of the book is dedicated to applications of the profinite theory to abstract groups, with sections on finitely generated subgroups of free groups, separability conditions in free and amalgamated products, and algorithms in free groups and finite monoids. Profinite Graphs and Groups will appeal to students and researchers interested in profinite groups, geometric group theory, graphs and connections with the theory of formal languages. A complete reference on the subject, the book includes historical and bibliographical notes as well as a discussion of open quest...

  8. Homomorphisms of quantum groups

    CERN Document Server

    Meyer, Ralf; Woronowicz, Stanisław Lech

    2010-01-01

    We introduce some equivalent notions of homomorphisms between quantum groups that behave well with respect to duality of quantum groups. Our equivalent definitions are based on bicharacters, coactions, and universal quantum groups, respectively.

  9. Kansas Power Plants

    Data.gov (United States)

    Kansas Data Access and Support Center — The Kansas Power Plants database depicts, as point features, the locations of the various types of power plant locations in Kansas. The locations of the power plants...

  10. An analogue to Dixon's theorem for automaton groups

    OpenAIRE

    Godin, Thibault

    2017-01-01

    International audience; Dixon's famous theorem states that the group generated by two random permutations of a finite set is generically either the whole symmetric group or the alternating group. In the context of random generation of finite groups this means that it is hopeless to wish for a uniform distribution – or even a non-trivial one – by drawing random permutations and looking at the generated group. Mealy automata are a powerful tool to generate groups, including all finite groups an...

  11. Food Groups Recipes

    OpenAIRE

    2012-01-01

    15 pages In 2011, My Plate replaced the Food Pyramid as a visual representation for the USDA Dietary Guidelines. This publication, a group of recipes based on this new division of food groups, reflects the effort of the USDA and other groups to translate science-based research into everyday practice for Americans. Fifteen recipes (3 from each food group) show ways to use foods from each food group. They are complete with basic nutritional analyses and food group amounts.

  12. Locally minimal topological groups

    OpenAIRE

    Außenhofer, Lydia; Chasco, María Jesús; Dikranjan, Dikran; Domínguez, Xabier

    2009-01-01

    A Hausdorff topological group $(G,\\tau)$ is called locally minimal if there exists a neighborhood $U$ of 0 in $\\tau$ such that $U$ fails to be a neighborhood of zero in any Hausdorff group topology on $G$ which is strictly coarser than $\\tau.$ Examples of locally minimal groups are all subgroups of Banach-Lie groups, all locally compact groups and all minimal groups. Motivated by the fact that locally compact NSS groups are Lie groups, we study the connection between local minimality and the ...

  13. GROUP PROFILE Computer Technique

    Directory of Open Access Journals (Sweden)

    Andrey V. Sidorenkov

    2015-01-01

    Full Text Available This article contains a description of the structure, the software and functional capabilities, and the scope and purposes of application of the Group Profile (GP computer technique. This technique rests on a conceptual basis (the microgroup theory, includes 16 new and modified questionnaires, and a unique algorithm, tied to the questionnaires, for identification of informal groups. The GP yields a wide range of data about the group as a whole (47 indices, each informal group (43 indices, and each group member (16 indices. The GP technique can be used to study different types of groups: production (work groups, design teams, military units, etc., academic (school classes, student groups, and sports.

  14. Power and Control in Kathmandu: A Comparison of Attempted Power, Actual Power, and Achieved Power.

    Science.gov (United States)

    Emery, Clifton R; Thapa, Sirjana; Wu, Shali

    2016-05-05

    We argue that the concept of power has been inadvertently sidelined in recent theory and research on husband violence. Three types of relationship power may matter with respect to husband violence: attempted power, actual power, and achieved power. Analyses of a randomly selected representative sample of 270 married or partnered women in Kathmandu showed that actual power was related to husband violence prevalence, severity, and injury. Achieved power was related to husband violence prevalence and severity, and attempted power was related to husband violence injury. Implications are discussed.

  15. Power Service Shops

    Data.gov (United States)

    Federal Laboratory Consortium — TVA's Power Service Shops provides expert repair and maintenance of power system components and large industrial equipment. With world-class maintenance facilities...

  16. Selection of Power Sources for Portable Applications

    OpenAIRE

    Flipsen, S.F.J.

    2009-01-01

    New power sources emerge very quickly. Implementation of hybrid power sources for portable electronics depends on the knowledge of industrial designers. For now this group has little understanding of fuel cells and especially fuel-cell hybrids. This slows down implementation and increases the chance of failure. In this paper a review is given of tools and methods which gives concept designers a first guesstimate of the volumes they have to deal with when designing the power source. Second the...

  17. Evaluation of genotypic and phenotypic methods for differentiation of the members of the Anginosus group streptococci.

    Science.gov (United States)

    Summanen, P H; Rowlinson, M-C; Wooton, J; Finegold, S M

    2009-09-01

    The terminology and classification of the Anginosus group streptococci has been inconsistent. We tested the utility of 16S rRNA gene and tuf gene sequencing and conventional biochemical tests for the reliable differentiation of the Anginosus group streptococci. Biochemical testing included Rapid ID 32 Strep, API Strep, Fluo-Card Milleri, Wee-tabs, and Lancefield antigen typing. Altogether, 61 Anginosus group isolates from skin and soft tissue infections and four reference strains were included. Our results showed a good agreement between 16S rRNA gene and tuf gene sequencing. Using the full sequence was less discriminatory than using the first part of the 16S rRNA gene. The three species could not be separated with the API 20 Strep test. Streptococcus intermedius could be differentiated from the other two species by beta-galactosidase (ONPG) and beta-N-acetyl-glucosaminidase reactions. Rapid ID 32 Strep beta-glucosidase reaction was useful in separating S. anginosus strains from S. constellatus. In conclusion, both 16S rRNA gene and tuf gene sequencing can be used for the reliable identification of the Anginosus group streptococci. S. intermedius can be readily differentiated from the other two species by phenotypic tests; however, 16S rRNA gene or tuf gene sequencing may be needed for separating some strains of S. constellatus from S. anginosus.

  18. Ordered groups and infinite permutation groups

    CERN Document Server

    1996-01-01

    The subjects of ordered groups and of infinite permutation groups have long en­ joyed a symbiotic relationship. Although the two subjects come from very different sources, they have in certain ways come together, and each has derived considerable benefit from the other. My own personal contact with this interaction began in 1961. I had done Ph. D. work on sequence convergence in totally ordered groups under the direction of Paul Conrad. In the process, I had encountered "pseudo-convergent" sequences in an ordered group G, which are like Cauchy sequences, except that the differences be­ tween terms of large index approach not 0 but a convex subgroup G of G. If G is normal, then such sequences are conveniently described as Cauchy sequences in the quotient ordered group GIG. If G is not normal, of course GIG has no group structure, though it is still a totally ordered set. The best that can be said is that the elements of G permute GIG in an order-preserving fashion. In independent investigations around that t...

  19. Imperial power,gentry power and clan power: Western and Chinese cultural traditions in a comparative perspective

    Institute of Scientific and Technical Information of China (English)

    Wang Bing; Wang Dan

    2006-01-01

    The differences between China and Western countries in human and physical environment has brought about two distinctive models of state.In the Chinese-style state of quasi-consanguinity,in which family and state have a similar structure,imperial power,gentry power,and clan power are the product of common ownership of consanguineous groups.The similarity in the structures of these three kinds of power derives from the fact that they are all restricted by the power of lineage generated from the self-sufficient small farmer economy,and must obey the conventions of ancestors which hold the benefits of the group as supreme.The relationship between these three kinds of power,is definitely not the one that is based on the division of power that is founded on individual private ownership in Western countries.where'public power'and'individual private ownership'are antithetic.but are three aspects of the patriarchal dictatorship that complement each other.Therefore,village rule in China and autonomy in the West are two totally different concepts,and gentry power is also not the'authorized power'from the state.

  20. Renewable energy power generation projects started construction in Tibet

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    On March 19, the construction of a 10-MW photovoltaic power plant and a 1 000-kW new type geothermal power generation project were started by Guodian Longyuan Group in Yanbajing Town, Dangxiong County of Tibet.

  1. A simplified model for access to power transmission and distribution systems in the deregulated power market; Ein einfaches Modell fuer den Netzzugang im Strommarkt

    Energy Technology Data Exchange (ETDEWEB)

    Pfaffenberger, W. [Oldenburg Univ. (Germany). Fachbereich Wirtschafts- und Rechtswissenschaften; Bremer Energie-Institut, Bremen (Germany); Cramer, G. [Thuega AG, Muenchen (Germany)

    2000-03-01

    In Germany, the amended agreement for power wheeling and TPA to power distribution systems, negotiated between the industrial associations of the ISOs and GenCOs, has brought some improvements as compared to version I, but the legal basis and the adopted system still leave much room for improvement to reflect the requirements of a competitive market. The contribution here presents a simplified model that offers more transparency and easier, non-discriminatory handling of transactions, minimizing the required efforts and expenses of market participants. The focus is on giving new impetus to the hitherto neglected end-use sector. (orig./CB) [German] Trotz des noch ungenuegend ausgestalteten Rechtsrahmens hat die Verbaendevereinbarung I inzwischen zahlreiche Faelle des Netzzugangs Dritter ermoeglicht. Die weiterentwickelte Verbaendevereinbarung II soll verbesserte Gestaltungsmoeglichkeiten eroeffnen, wenngleich das Ziel einer einfachen Netzzugangsregelung fuer alle Marktteilnehmer damit immer noch nicht erreicht scheint. Von einer Stimulierung des Marktes kann bislang keine Rede sein, denn die Strukturen vor allem der Netzzugangspreise sind nicht hinreichend einfach und transparent, um auch kleineren Stromanbietern und -verbrauchern die Teilnahme zu ermoeglichen. Wenig hilfreich ist die Diskussion ueber die Anwendung von Lastprofilen. Die im folgenden dargelegten, sehr einfach zu kalkulierenden und leicht zu handhabenden Vorschlaege zum Netzzugang sollen den Aufwand aller Marktbeteiligten minimieren und zugleich den Wettbewerb insbesondere auf der Ebene der Kleinverbraucher und Privatkunden beleben. (orig.)

  2. Selection of Power Sources for Portable Applications

    NARCIS (Netherlands)

    Flipsen, S.F.J.

    2009-01-01

    New power sources emerge very quickly. Implementation of hybrid power sources for portable electronics depends on the knowledge of industrial designers. For now this group has little understanding of fuel cells and especially fuel-cell hybrids. This slows down implementation and increases the chance

  3. 41 CFR 101-42.1101 - Federal supply classification (FSC) groups and classes which contain hazardous materials.

    Science.gov (United States)

    2010-07-01

    ... device. 2520 Vehicular power transmission components Items containing asbestos. 2530 Vehicular brake... metallic sodium. Group 29 Engine accessories Engine valves containing metallic sodium. Group 30 Mechanical power transmission equipment Equipment containing hazardous hydraulic fluids including PCBs. Group...

  4. High-Average Power Facilities

    Energy Technology Data Exchange (ETDEWEB)

    Dowell, David H.; /SLAC; Power, John G.; /Argonne

    2012-09-05

    There has been significant progress in the development of high-power facilities in recent years yet major challenges remain. The task of WG4 was to identify which facilities were capable of addressing the outstanding R&D issues presently preventing high-power operation. To this end, information from each of the facilities represented at the workshop was tabulated and the results are presented herein. A brief description of the major challenges is given, but the detailed elaboration can be found in the other three working group summaries.

  5. Optimized Communication of Group Mobility in WPAN

    Directory of Open Access Journals (Sweden)

    Suman Lata

    2016-03-01

    Full Text Available ZigBee is a low cost, low-power consumption and long battery life network that is based on the IEEE 802.15.4 standard; which is most usually used to transfer low data rates information in the Wireless Personal Area Network (WPAN. In the Wireless Personal Area Network (WPAN network, capability of sensor network and mobile network are combined that have energy limit and sensing range limits. Here a network is composed of a number of Sub-Network or groups with the selection of group leader. Group formation is defined under sensing range limit, density limit and type of nodes. The selection of group leader is defined under velocity analysis, energy and average distance after that inter group and intra group communication is performed and then Handoff mechanism is performed when nodes switch the group or group switch the base station.

  6. 3-manifold groups are virtually residually p

    CERN Document Server

    Aschenbrenner, Matthias

    2010-01-01

    Given a prime $p$, a group is called residually $p$ if the intersection of its $p$-power index normal subgroups is trivial. A group is called virtually residually $p$ if it has a finite index subgroup which is residually $p$. It is well-known that finitely generated linear groups over fields of characteristic zero are virtually residually $p$ for all but finitely many $p$. In particular, fundamental groups of hyperbolic $3$-manifolds are virtually residually $p$. It is also well-known that fundamental groups of $3$-manifolds are residually finite. In this paper we prove a common generalization of these results: every $3$-manifold group is virtually residually $p$ for all but finitely many~$p$. This gives evidence for the conjecture (Thurston) that fundamental groups of $3$-manifolds are linear groups.

  7. Communication in Organizational Groups

    OpenAIRE

    Monica RADU

    2007-01-01

    Organizational group can be defined as some persons between who exist interactive connections (functional, communication, affective, normative type). Classification of these groups can reflect the dimension, type of relationship or type of rules included. Organizational groups and their influence over the individual efficiency and the efficiency of the entire group are interconnected. Spontaneous roles in these groups sustain the structure of the relationship, and the personality of each indi...

  8. Failure at the top: How power undermines collaborative performance.

    Science.gov (United States)

    Hildreth, John Angus D; Anderson, Cameron

    2016-02-01

    All too commonly, we see groups of leaders fail to accomplish their stated goals when working together--legislators who cannot agree on a bill, heads of state who cannot draft meaningful environmental policy, or boards of trustees who make disastrous decisions for their school. The current research examines whether groups of leaders fail as often as they do in part because of the power each leader is accustomed to possessing among his or her constituents. In multiple studies we found that high power individuals, when working together in groups, performed worse than did other groups: individuals randomly assigned power in an initial task were less creative when they then worked together in groups on a subsequent task (Studies 1A and 4). Individuals with higher power who worked together in groups were also less likely to reach agreement on a difficult negotiation task, whether these groups comprised actual executives from an extant organization (Study 2) or participants randomly assigned power in the laboratory (Study 3). Mediation analyses suggest that groups of high power individuals performed worse because they fought over their relative status in the group, were less focused on the task, and shared information with each other less effectively. However, high power individuals were more effective when working on tasks that required less coordination: they were more creative (Studies 1B and 4) and persisted longer on a difficult task than other groups. Therefore, group processes are the key problem for groups of high power individuals when they work together.

  9. Human Power Empirically Explored

    NARCIS (Netherlands)

    Jansen, A.J.

    2011-01-01

    Harvesting energy from the users’ muscular power to convert this into electricity is a relatively unknown way to power consumer products. It nevertheless offers surprising opportunities for product designers; human-powered products function independently from regular power infrastructure, are conven

  10. Wind Power Now!

    Science.gov (United States)

    Inglis, David Rittenhouse

    1975-01-01

    The government promotes and heavily subsidizes research in nuclear power plants. Federal development of wind power is slow in comparison even though much research with large wind-electric machines has already been conducted. Unless wind power programs are accelerated it will not become a major energy alternative to nuclear power. (MR)

  11. Wind Power Now!

    Science.gov (United States)

    Inglis, David Rittenhouse

    1975-01-01

    The government promotes and heavily subsidizes research in nuclear power plants. Federal development of wind power is slow in comparison even though much research with large wind-electric machines has already been conducted. Unless wind power programs are accelerated it will not become a major energy alternative to nuclear power. (MR)

  12. Distributed Power Flow Controller

    NARCIS (Netherlands)

    Yuan, Z.

    2010-01-01

    In modern power systems, there is a great demand to control the power flow actively. Power flow controlling devices (PFCDs) are required for such purpose, because the power flow over the lines is the nature result of the impedance of each line. Due to the control capabilities of different types of P

  13. Distributed Power Flow Controller

    NARCIS (Netherlands)

    Yuan, Z.

    2010-01-01

    In modern power systems, there is a great demand to control the power flow actively. Power flow controlling devices (PFCDs) are required for such purpose, because the power flow over the lines is the nature result of the impedance of each line. Due to the control capabilities of different types of P

  14. Power oscillation damping controller

    DEFF Research Database (Denmark)

    2012-01-01

    A power oscillation damping controller is provided for a power generation device such as a wind turbine device. The power oscillation damping controller receives an oscillation indicating signal indicative of a power oscillation in an electricity network and provides an oscillation damping control...

  15. Optimal Power Flow with Power Flow Routers

    OpenAIRE

    2016-01-01

    Power flow routing is an emerging control paradigm for the dynamic control of electric power flows. In this paper, we propose a generic model of a power flow router (PFR) and incorporate it into the optimal power flow (OPF) problem. First, a generic PFR architecture is proposed to encapsulate the desired functions of PFRs. Then, the load flow model of PFRs is developed and incorporated into the OPF framework. To pursue global optimality of the non-convex PFR-incorporated OPF (PFR-OPF) problem...

  16. The electric power engineering handbook power systems

    CERN Document Server

    2012-01-01

    Power Systems, Third Edition (part of the five-volume set, The Electric Power Engineering Handbook) covers all aspects of power system protection, dynamics, stability, operation, and control. Under the editorial guidance of L.L. Grigsby, a respected and accomplished authority in power engineering, and section editors Andrew Hanson, Pritindra Chowdhuri, Gerry Sheble, and Mark Nelms, this carefully crafted reference includes substantial new and revised contributions from worldwide leaders in the field. This content provides convenient access to overviews and detailed information on a diverse arr

  17. The power gap: freedom, power and mental illness.

    Science.gov (United States)

    Kelly, Brendan D

    2006-10-01

    Up to one in four individuals in the US meet the diagnostic criteria for a mental illness in any given year and a significant proportion have severe or recurring illnesses (e.g. schizophrenia). Despite this prevalence, mental health services remain poorly funded, mental illness remains misunderstood and individuals with recurring illness are constrained to live lives characterized by isolation, under-employment, stigma and denial of rights. Here I examine the idea that this situation is attributable, at least in part, to the ways in which the freedom and power of the mentally ill are undermined by a range of factors, including: (i) dispersion of political power amongst interest groups, which, combined with the relatively wide distribution of the 'interest' of mental illness, has the paradoxical result that mental health interest groups do not command political power proportional to the number affected; (ii) systematic exclusion of the mentally ill from full participation in civic, social and political life (structural violence), resulting in a lack of emphasis on mental health on political agendas and the exclusion of certain policy options as possible responses and (iii) difficulties the mentally ill may experience recognizing or articulating their own needs the absence of effective health-care systems, and the absence of knowledge about alternative systems. I argue that the enhancement of individual agency is central to efforts to address this power gap, including: (i) rights-based approaches, involving the enhancement of national mental health legislation, improvement of advocacy, empowerment and guardianship processes and development of governance, accountability and quality procedures in mental health services; (ii) approaches based on enhancing direct political participation, including voter-registration programmes and development of larger, more effective interest groups and (iii) additional approaches, including increasing accountability throughout services

  18. Exascale Hardware Architectures Working Group

    Energy Technology Data Exchange (ETDEWEB)

    Hemmert, S; Ang, J; Chiang, P; Carnes, B; Doerfler, D; Leininger, M; Dosanjh, S; Fields, P; Koch, K; Laros, J; Noe, J; Quinn, T; Torrellas, J; Vetter, J; Wampler, C; White, A

    2011-03-15

    The ASC Exascale Hardware Architecture working group is challenged to provide input on the following areas impacting the future use and usability of potential exascale computer systems: processor, memory, and interconnect architectures, as well as the power and resilience of these systems. Going forward, there are many challenging issues that will need to be addressed. First, power constraints in processor technologies will lead to steady increases in parallelism within a socket. Additionally, all cores may not be fully independent nor fully general purpose. Second, there is a clear trend toward less balanced machines, in terms of compute capability compared to memory and interconnect performance. In order to mitigate the memory issues, memory technologies will introduce 3D stacking, eventually moving on-socket and likely on-die, providing greatly increased bandwidth but unfortunately also likely providing smaller memory capacity per core. Off-socket memory, possibly in the form of non-volatile memory, will create a complex memory hierarchy. Third, communication energy will dominate the energy required to compute, such that interconnect power and bandwidth will have a significant impact. All of the above changes are driven by the need for greatly increased energy efficiency, as current technology will prove unsuitable for exascale, due to unsustainable power requirements of such a system. These changes will have the most significant impact on programming models and algorithms, but they will be felt across all layers of the machine. There is clear need to engage all ASC working groups in planning for how to deal with technological changes of this magnitude. The primary function of the Hardware Architecture Working Group is to facilitate codesign with hardware vendors to ensure future exascale platforms are capable of efficiently supporting the ASC applications, which in turn need to meet the mission needs of the NNSA Stockpile Stewardship Program. This issue is

  19. Group Psychotherapy in Iceland.

    Science.gov (United States)

    Ívarsson, Ómar

    2015-10-01

    In this overview of group psychotherapy in Iceland, an attempt will be made to describe how it is practiced today, give some glimpses into its earlier history, and clarify seven issues: (1) the standing of group psychotherapy in Iceland, its previous history, and the theoretical orientation of dynamic group therapy in the country; (2) the role of group therapy in the health care system; (3) how training in group therapy is organized; (4) the relationship between group psychotherapy research and clinical practice; (5) which issues/processes can be identified as unique to therapy groups in Iceland; and (6) how important are group-related issues within the social background of the country; and (7) what group work holds for the future.

  20. The EDF group and the sustainable development; Le groupe EDF et le developpement durable

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    This document deals with the management policy of the EDF Group, concerning the sustainable development. The program is presented showing the Group will to contribute to an environmental quality: a control of the activities impact on the environment, the development of the renewable energies, the solidarity and the electric power access development in developing countries. (A.L.B.)