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Articles de revues sur le sujet « Discriminant locus »

Auteur : Grafiati

Publié le 2 juin 2025

Mis à jour le 31 juillet 2025

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1

TRÁNG, LÊ DŨNG, HÉLÈNE MAUGENDRE, and CLAUDE WEBER. "GEOMETRY OF CRITICAL LOCI." Journal of the London Mathematical Society 63, no. 3 (2001): 533–52. http://dx.doi.org/10.1017/s0024610701001995.

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Let(formula here)be the germ of a finite (that is, proper with finite fibres) complex analytic morphism from a complex analytic normal surface onto an open neighbourhood U of the origin 0 in the complex plane C2. Let u and v be coordinates of C2 defined on U. We shall call the triple (π, u, v) the initial data.Let Δ stand for the discriminant locus of the germ π, that is, the image by π of the critical locus Γ of π.Let (Δα)α∈A be the branches of the discriminant locus Δ at O which are not the coordinate axes.For each α ∈ A, we define a rational number dα by(formula here)where I(–, –) denotes t

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Sawon, Justin. "On the discriminant locus of a Lagrangian fibration." Mathematische Annalen 341, no. 1 (2007): 201–21. http://dx.doi.org/10.1007/s00208-007-0189-9.

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Nearey, Terrance M. "Locus equations and pattern recognition." Behavioral and Brain Sciences 21, no. 2 (1998): 277. http://dx.doi.org/10.1017/s0140525x98421174.

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Although the relations between second formant (F2) onset and F2 vowel are extremely regular and contain important information about place of articulation of the voiced stops, they are not sufficient for its identification. Using quadratic discriminant analysis of a new data set, it is shown that F3 onset and F3 vowel can also contribute substantial additional information to help identify the consonants.

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Antipova, I. A., and S. Yu Chuvashov. "Singularities of Discriminant Loci of Laurent Polynomial Systems." Bulletin of Irkutsk State University. Series Mathematics 52 (2025): 44–57. https://doi.org/10.26516/1997-7670.2025.52.44.

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We consider a system of n Laurent polynomials in n unknowns with variable complex coefficients. For the reduced discriminant locus of such a system, we study the set of critical points of the Horn–Kapranov parametrization. In a special instance (n = 3), the set of critical values of the parametrization is investigated. It is proved that the multiple root of the corresponding system is degenerate

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Kite, Alex, and Ed Segal. "Discriminants and Semi-orthogonal Decompositions." Communications in Mathematical Physics 390, no. 2 (2022): 907–31. http://dx.doi.org/10.1007/s00220-021-04298-2.

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AbstractThe derived categories of toric varieties admit semi-orthogonal decompositions coming from wall-crossing in GIT. We prove that these decompositions satisfy a Jordan–Hölder property: the subcategories that appear, and their multiplicities, are independent of the choices made. For Calabi–Yau toric varieties wall-crossing instead gives derived equivalences and autoequivalences, and mirror symmetry relates these to monodromy around the GKZ discriminant locus. We formulate a conjecture equating intersection multiplicities in the discriminant with the multiplicities appearing in certain semi

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Hendryadi, Hendryadi. "PENGEMBANGAN SKALA LOCUS OF CONTROL." Jurnal Riset Manajemen dan Bisnis (JRMB) Fakultas Ekonomi UNIAT 2, no. 3 (2017): 417–24. http://dx.doi.org/10.36226/jrmb.v2i3.76.

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This article aims to develop a short form of the locus of control scale. The study was conducted in two stages: a study of 66 respondents as pilot testing which aims to test content validity, structure validity, and internal consistency. Study 2 was conducted on 328 respondents used to test the validity and reliability of the scale evaluated by the PLS-SEM method (such as internal consistency, convergent validity, and discriminant validity). The analysis concludes that the 8-item locus of control scales tested have adequate validity and reliability. A short form locus of control scale was deve

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Whitman, Laurie, Sharon M. Desmond, and James H. Price. "Development of a Depression Locus of Control Scale." Psychological Reports 60, no. 2 (1987): 583–89. http://dx.doi.org/10.2466/pr0.1987.60.2.583.

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A 12-item Depression Locus of Control Scale was given to 117 white high school students. The scale has three subscales, internal (4 items), chance (4 items), and powerful others (4 items). Reliability assessed by test-retest was .55 and Cronbach alphas were for the subscales listed above .63, .73, and .66, respectively. Content validity, criterion-related validity, construct validity, and discriminant validity were examined. Reading level was at the eighth grade. It is recommended that the more specific Depression Locus of Control Scale be used in studies of depression.

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Altavilla, Amedeo, and Edoardo Ballico. "Three Topological Results on the Twistor Discriminant Locus in the 4-Sphere." Milan Journal of Mathematics 87, no. 1 (2019): 57–72. http://dx.doi.org/10.1007/s00032-019-00292-5.

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O'Connell, Janelle K., and James H. Price. "Development of a Heart Disease Locus of Control Scale." Psychological Reports 56, no. 1 (1985): 159–64. http://dx.doi.org/10.2466/pr0.1985.56.1.159.

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A 20-item Heart Disease Locus of Control Scale was given to 50 health fair attenders and 51 nonattenders. The scale has three subscales: internal (7 items), chance (8 items), and powerful others (5 items). Reliability assessed by test-retest was .83 and Cronbach alphas for the subscales were internal .83, chance .86, and powerful others .76. Validity was examined through content validity, criterion-related validity, construct validity, and discriminant validity. Reading was at the ninth grade. It is recommended that the more specific Heart Disease Scale be utilized when conducting studies of h

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Esqueda H., Sofia, Eugenia Csoban, and Jose Felipe Prat. "A profile of the popular entrepreneur: a value-based approach." Academia Revista Latinoamericana de Administración 32, no. 2 (2019): 267–81. http://dx.doi.org/10.1108/arla-03-2018-0055.

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Purpose The purpose of this paper is to identify the personal characteristics and individual values of Venezuelan low-income entrepreneurs, according to the theoretical framework of the Schwartz model. Design/methodology/approach A stratified probabilistic sample of 416 individuals was selected from a database of Bangente’s clients, who received microcredits between 1999 and 2016, in the Capital District of Venezuela. The Portrait Value Questionnaire (Schwartz, 2003; Peiró and Palencia, 2009) was applied to measure the values of power, self-direction, stimulation and achievement. The locus of

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Antipova, Irina A., and Avgust K. Tsikh. "The discriminant locus of a system of $ n$ Laurent polynomials in $ n$ variables." Izvestiya: Mathematics 76, no. 5 (2012): 881–906. http://dx.doi.org/10.1070/im2012v076n05abeh002608.

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Antipova, I. A. "Parametrization of the discriminant locus for the general polynomial transform of ℂ n". Doklady Mathematics 78, № 2 (2008): 713–16. http://dx.doi.org/10.1134/s1064562408050190.

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Braun, Volker. "Discrete Wilson Lines in F-Theory." Advances in High Energy Physics 2011 (2011): 1–18. http://dx.doi.org/10.1155/2011/404691.

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F-theory models are constructed where the7-brane has a nontrivial fundamental group. The base manifolds used are a toric Fano variety and a smooth toric threefold coming from a reflexive polyhedron. The discriminant locus of the elliptically fibered Calabi-Yau fourfold can be chosen such that one irreducible component is not simply connected (namely, an Enriques surface) and supports a non-Abelian gauge theory.

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Bayu Saputro, Qristin Violinda, and Ira Setiawati. "The Influence of Time Management, Academic Stress, Locus of Control Mediated by Family Support on Student Procrastination in Semarang City." International Journal of Economics and Management Sciences 1, no. 4 (2024): 291–303. http://dx.doi.org/10.61132/ijems.v1i4.283.

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This study aimed to assess the impact of time management, academic stress, and locus of control , mediated by family support, on student procrastination in Semarang. This study employed a quantitative methodology via a survey conducted among the student population in Semarang, employing random sampling to get a sample size of 399 respondents. The data were evaluated using validity assessments, discriminant validity, reliability evaluations, and hypothesis testing via Smart-PLS version 4.0. The test results indicated that time management, academic stress, locus of control , and family support s

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Soler-Anguiano, Francisco Leonardo, Rolando Díaz-Loving, and Alejandra del Carmen Domínguez-Espinosa. "Consumer Locus of Control Scale: Validity, and Measurement Invariance Evidence in Low and High Socioeconomic Status Groups." Revista Colombiana de Psicología 33, no. 2 (2024): 11–26. http://dx.doi.org/10.15446/rcp.v33n2.109815.

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Consumer locus of control is a key factor in purchase decisions, where consumers perceive outcomes as either dependent on or external to their own actions. These beliefs vary among individuals from different socioeconomic backgrounds, except when it comes to consumption. However, the assumption of measurement invariance across all socioeconomic groups has not been proven. To address this, a study was conducted to develop, validate, and test the invariance of the Consumer Locus of Control Scale. The first study (n = 300) involved exploratory factor analysis and reliability testing. The second s

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Mironov, Andrei, Sergey Mironov, Alexei Morozov, and Andrey Morozov. "Linearized Lorentz-violating gravity and discriminant locus in the moduli space of mass terms." Journal of Physics A: Mathematical and Theoretical 43, no. 5 (2010): 055402. http://dx.doi.org/10.1088/1751-8113/43/5/055402.

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Madonna, Stephen, and Vincent D. Philpot. "Self-Statements, Self-Esteem, and Locus of Control in Discriminating College Students' Scores on the Beck Depression Inventory." Psychological Reports 78, no. 2 (1996): 531–34. http://dx.doi.org/10.2466/pr0.1996.78.2.531.

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To study the use of the ratio of positive to negative self-statements, locus of control, and self-esteem in discriminating between scores on the Beck Depression Inventory 145 undergraduate college students were administered the Beck Depression Inventory, Automatic Thoughts Questionnaire-Revised, Coopersmith Self-esteem Inventory-Adult Form, and the Rotter Locus of Control scale in their classrooms. A stepwise discriminant analysis indicated that five variables combined to yield a statistically significant discrimination among low, middle, and high scores on the Beck Depression Inventory. The c

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Carlson, B. Robert, and Kevin Petti. "Health Locus of Control and Participation in Physical Activity." American Journal of Health Promotion 3, no. 3 (1988): 32–37. http://dx.doi.org/10.4278/0890-1171-3.3.32.

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The purpose of this study was to determine the physical activity participation patterns of college students when defined by their Health Locus of Control orientation. One thousand thirty-three college-aged students completed the Wellness Activity Profile, a questionnaire that yielded data on Health Locus of Control and self-reported frequency of participation in physical activities. Discriminant analyses indicated that the combination of physical activities associated with internally and externally oriented students were different for both males and females. Participation in high caloric expen

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Santokhie, Stefan, and Garth E. Lipps. "Development and Validation of the Tertiary Student Locus of Control Scale." SAGE Open 10, no. 1 (2020): 215824401989906. http://dx.doi.org/10.1177/2158244019899061.

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This study developed and validated a measure of Locus of Control in university students. Tertiary academic locus of control is the general expectancy that university students have regarding their ability to change their academic outcomes. Students who have an internal academic locus of control expect that their own efforts, skill, or luck will lead to academic success, while those with an external locus of control believe that academic outcomes are a result of luck, destiny, fate, or the behaviors of others. A series of steps were taken to develop the Tertiary Student Locus of Control (TSLOC)

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Abbiati, M., and F. Maltagliati. "Genetic population structure of Neanthes succinea (Polychaeta: Nereididae)." Journal of the Marine Biological Association of the United Kingdom 72, no. 3 (1992): 511–17. http://dx.doi.org/10.1017/s0025315400059300.

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Two samples of Neanthes succinea (Frey & Leuckart 1847) from the Mediterranean Sea were investigated. Twenty-one loci were analysed; seven of them were polymorphic in both populations. The level of heterozygosity was 2.2% and 4.4% in populations from the Tyrrhenian and Adriatic coasts respectively. The value of Nei's genetic identity index (1=0.965), together with the mean F(IT) (=0.350), shows that the samples can be considered reproductively isolated populations. F-statistics indicate that ME-1 is the discriminant locus between populations.

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Kunzler, Angela M., Andrea Chmitorz, Christiana Bagusat, et al. "Construct Validity and Population-Based Norms of the German Brief Resilience Scale (BRS)." European Journal of Health Psychology 25, no. 3 (2018): 107–17. http://dx.doi.org/10.1027/2512-8442/a000016.

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Abstract. The Brief Resilience Scale (BRS) measures the ability to recover from stress. To provide further evidence for construct validity of the German BRS and to determine population-based norms, a large sample (N = 1,128) representative of the German adult population completed a survey including the BRS and instruments measuring perceived stress and the resilience factors optimism, self-efficacy, and locus of control. Confirmatory factor analyses showed best model fit for a five-factor model differentiating the ability to recover from stress from the three resilience factors. On the basis o

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Pannekoek, Linda, Jan P. Piek, and Martin S. Hagger. "The Children’s Perceived Locus of Causality Scale for Physical Education." Journal of Teaching in Physical Education 33, no. 2 (2014): 162–85. http://dx.doi.org/10.1123/jtpe.2013-0095.

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A mixed methods design was applied to evaluate the application of the Perceived Locus of Causality scale (PLOC) to preadolescent samples in physical education settings. Subsequent to minor item adaptations to accommodate the assessment of younger samples, qualitative pilot tests were performed (N = 15). Children’s reports indicated the need for further revisions to the items, resulting in the Children’s PLOC (C-PLOC). In a second study involving a larger sample of 9–12 year old children (N = 429), the questionnaire was evaluated using quantitative methods. The five factor structure hypothesize

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Maggon, Mohita, and Harish Chaudhry. "Validating Service Locus of Control Scale for Hotels in Sample of Indian Business Travelers." Jindal Journal of Business Research 6, no. 2 (2017): 97–107. http://dx.doi.org/10.1177/2278682117717583.

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The purpose of this study was to validate the service locus of control (SLOC) scale in the hospitality sector in India. This article validated the SLOC scale (Bradley & Sparks, 2002) with a sample of Indian business travelers. The study aimed at examining reliability and validity of the scale. The validation of the scale was done through confirmatory factor analysis and discriminant as well as convergent validity was observed. The scale was administered to a sample of 304 business travelers (males = 173, females = 131). Results showed that the scale had high reliability and acceptable cons

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Abo, Hirotachi. "On the discriminant locus of a rank $n-1$ vector bundle on $\mathbb P^{n-1}$." Portugaliae Mathematica 77, no. 3 (2020): 299–343. http://dx.doi.org/10.4171/pm/2053.

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Grandjean, Vincent. "Residual discriminant and residual bifurcation locus of a function germ singular along an Euler free divisor." Kodai Mathematical Journal 24, no. 3 (2001): 393–420. http://dx.doi.org/10.2996/kmj/1106168812.

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Wainberg, Milton, Andrea Norcini Pala, Francine Cournos, and Karen McKinnon. "Validation of the Mental Illness Sexual Stigma Questionnaire (MISS-Q) in a sample of Brazilian adults in psychiatric care." Jornal Brasileiro de Psiquiatria 66, no. 3 (2017): 132–38. http://dx.doi.org/10.1590/0047-2085000000162.

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ABSTRACT Objective We evaluated the psychometric properties of a new instrument “Mental Illness Sexual Stigma Questionnaire” (MISS-Q). Methods We interviewed 641 sexually active adults (ages 18-80) attending public outpatient psychiatric clinics in Rio de Janeiro about their stigma experiences. Results Nine factors were extracted through exploratory factor analysis (EFA) and labeled: ‘individual discrimination by others’; ‘staff willingness to talk about sexuality’; ‘staff and family prohibitions’; ‘sexual devaluation of self’; ‘perceived attractiveness’; ‘mental illness concealment’; ‘perceiv

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Desrosiers, B., J. M. Sévigny, and J. P. Chanut. "Restriction fragment length polymorphism of rDNA in the redfishes Sebastes fasciatus and S. mentella (Scorpaenidae) from the Gulf of St. Lawrence." Canadian Journal of Zoology 77, no. 2 (1999): 267–77. http://dx.doi.org/10.1139/z98-208.

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A restriction fragment length polymorphism (RFLP) analysis was carried out on nuclear ribosomal DNA (rDNA) of the redfishes Sebastes fasciatus and Sebastes mentella from the Gulf of St. Lawrence in an attempt to describe new molecular markers that would discriminate these two sibling species. The RFLP analysis revealed heterogeneity in the size of the repeat unit within and among individuals that is most likely the result of variation in the length of the intergenic spacer. Double digestion of rDNA with the restriction enzymes EcoRI and ScaI and subsequent hybridization with a 28S probe reveal

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Wu, Zai-Zhen, Jian-Hua Tang, Bin Zhang, Li-Ping Guo, Hong-Ping Xie, and Bing-Ren Gu. "The expert system of genotype discrimination for D5S818 locus based on near-infrared spectroscopy–principal discriminant variate." Journal of Pharmaceutical Analysis 2, no. 2 (2012): 117–22. http://dx.doi.org/10.1016/j.jpha.2011.10.007.

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Gadzella, Bernadette M., Dean W. Ginther, William G. Masten, and Debra Guthrie. "Predicting Students as Deep and Shallow Processors of Information." Perceptual and Motor Skills 84, no. 3 (1997): 875–81. http://dx.doi.org/10.2466/pms.1997.84.3.875.

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This study predicted the classification of subjects into deep and shallow processors of information. Subjects were 38 deep processors (who scored in the top 25% on the Deep Processing subscale of the Inventory of Learning Processes) and 39 shallow processors (who scored in the bottom 25% on the subscale). The five scores were Chance (from the Internality, Powerful Others, and Chance Locus of Control), Total Stress (from Student-life Stress Inventory), Elaborative Processing and Methodical Study (from the Inventory of Learning Processes), and Inference (from Watson-Glaser Critical Thinking Appr

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Hanson, Sarah J., Penny McCullagh, and Phyllis Tonymon. "The Relationship of Personality Characteristics, Life Stress, and Coping Resources to Athletic Injury." Journal of Sport and Exercise Psychology 14, no. 3 (1992): 262–72. http://dx.doi.org/10.1123/jsep.14.3.262.

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In 1988, Andersen and Williams proposed a model to explain the stress-injury relationship. The present study tested portions of this framework by investigating frequency and severity of injury occurrence in track and field athletes from four NCAA Division I and II universities. Personality characteristics (locus of control and sport competition trait anxiety), history of stressors (life stress, daily hassles, and past injury), and moderating variables (coping resources and social support) were assessed before the season began. Discriminant analyses indicated that four variables (coping resourc

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Bafadal, Ibrahim, Adi Atmoko, Asep Sunandar, Paul Arjanto, and Maria Imaculada Da Conceição Soares. "Convergent and Discriminant Validity of the Bafadal`s Leadership Morality Questionnaire in Indonesian Context." Academic Journal of Interdisciplinary Studies 13, no. 1 (2024): 184. http://dx.doi.org/10.36941/ajis-2024-0014.

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Objective: This study aims to address the lack of quantitative, culturally contextualized measures for evaluating moral leadership in Indonesian primary schools. The objectives are threefold: 1) to assess the convergent validity of Bafadal's Leadership Morality Questionnaire (BLMQ) within the Indonesian educational setting; 2) to evaluate the discriminant validity of the BLMQ; and 3) to derive actionable insights for administrators and policymakers based on the findings. Method: A quantitative survey-based approach was employed, gathering data from 362 prospective school principals in East Jav

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Perry, D. J., and P. Knowles. "Allozyme variation in sugar maple at the northern limit of its range in Ontario, Canada." Canadian Journal of Forest Research 19, no. 4 (1989): 509–14. http://dx.doi.org/10.1139/x89-078.

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Genetic variation in five populations of sugar maple (Acersaccharum Marsh.) from northern Ontario was analysed electrophoretically for seven enzymes encoded by 11 structural loci. On average, populations were polymorphic at 38.2% of the loci, with 1.95 alleles per locus. Although FST estimates indicated that only 3% of the genetic variability was among populations, there was significant allelic heterogeneity at all polymorphic loci. Canonical discriminant analysis also indicated substantial differentiation among populations. Genetic distances between populations ranged from 0.0009 to 0.0125, b

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Shi, Junqi, and Zhuo Chen. "Psychometric Properties of a Chinese Translation of the Political Skill Inventory." Psychological Reports 110, no. 1 (2012): 233–46. http://dx.doi.org/10.2466/03.08.17.pr0.110.1.233-246.

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Ferris and colleagues defined political skill in organizations as “the ability to effectively understand others at work and to use such knowledge to influence others to act in ways that enhance one's personal and/or organizational objectives.” In this study, the psychometric properties of a Chinese translation of the Political Skill Inventory were investigated, supporting construct, convergent, discriminant, and criterion validities. The results suggested that the Chinese translation retained a four-factor structure. Political skill was positively correlated with self-monitoring, conscientious

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Todorovic, Dušan, and Dragana Jovanović. "EXAMINING GENDER-ROLE ATTITUDE: THE ROLE OF FAMILY RELATIONS, SELF-ESTEEM, LOCUS OF CONTROL AND SELF-EFFICACY." ГОДИШЊАК ЗА ПЕДАГОГИЈУ 8, no. 2 (2024): 7–28. http://dx.doi.org/10.46630/gped.2.2023.1.

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The present study examined differences in egalitarianism and traditionalism in gender-role attitudes within students’ population at University of Nis. These attitudes were examined according to the intensity of four major social and psychological categories: family relations, global self-esteem, social self-efficacy and externality of locus of control. Also, possible discrimination between these two groups was investigated. Measuring instruments: The Attitudes toward gender equality scale (Ravlic & Raboteg-Šarić, 2002), Faces IV questionnaire (Olson & Gorrall, 2006), a self-concept sca

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McAuley, Edward, and Terry E. Duncan. "Causal Attributions and Affective Reactions to Discontinuing Outcomes in Motor Performance." Journal of Sport and Exercise Psychology 11, no. 2 (1989): 187–200. http://dx.doi.org/10.1123/jsep.11.2.187.

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Research suggests that attributional search is a consequence of disconfirming outcomes and that causal dimensions influence affective reactions to achievement outcomes. The present study manipulated future expectancies for performance and actual outcome in a competitive motor task. Following competitive outcome, causal attributions for and affective reactions to the outcome were assessed. Discriminant analysis indicated that winners experienced significantly more positive affect than did losers, who reported more intense negative affects. Regression analyses examined the relationship between c

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Bruce, J. W., and P. J. Giblin. "Generic isotopies of space curves." Glasgow Mathematical Journal 29, no. 1 (1987): 41–63. http://dx.doi.org/10.1017/s0017089500006650.

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For a single space curve (that is, a smooth curve embedded in ℝ3) much geometrical information is contained in the dual and the focal set of the curve. These are both (singular) surfaces in ℝ3, the dual being a model of the set of all tangent planes to the curve, and the focal set being the locus of centres of spheres having at least 3-point contact with the curve. The local structures of the dual and the focal set are (for a generic curve) determined by viewing them as (respectively) the discriminant of a family derived from the height functions on the curve, and the bifurcation set of the fa

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Terakado, Yasuhiro. "The determinant of a double covering of the projective space of even dimension and the discriminant of the branch locus." Journal of Number Theory 177 (August 2017): 153–69. http://dx.doi.org/10.1016/j.jnt.2017.01.020.

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Biancofiore, Aldo. "On the degree of the discriminant locus of a smooth hyperplane section of a threefold with non negative Kodaira dimension." Archiv der Mathematik 48, no. 6 (1987): 538–42. http://dx.doi.org/10.1007/bf01190363.

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Mossakowski, Dietrich, Sabine Braun, and Axel Roschen. "Hybridization in natural populations of ground beetles (Coleoptera, Carabidae)." Canadian Journal of Zoology 68, no. 8 (1990): 1783–89. http://dx.doi.org/10.1139/z90-259.

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We investigated 13 populations of the carabid subgenus Chrysocarabus in the Spanish mountains Sierra de Urbasa and Sierra de Andia. In some areas there were up to 16% hybrids between Carabus lineatus and Carabus splendens. Hybrids are best distinguished as individuals having combinations of morphological characters that are diagnostic for both species. Multivariate discriminant analysis showed a gap between the parental species, but hybrids were either C. lineatus-like or C. splendens-like. Experimentally produced hybrids lie in the same range as natural hybrids. Electrophoretic studies have i

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Merkle, S. A., W. T. Adams, and R. K. Campbell. "Multivariate analysis of allozyme variation patterns in coastal Douglas-fir from southwest Oregon." Canadian Journal of Forest Research 18, no. 2 (1988): 181–87. http://dx.doi.org/10.1139/x88-028.

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Isozyme data collected from megagametophytes of coastal Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco var. menziesii) parent trees, representing 22 southwest Oregon breeding zones, were analyzed by multivariate techniques to describe the distribution of genotypic variation among and within breeding zones and to relate genotypic and environmental variation. Data entered were mean haploid genotype scores obtained by averaging two haploid genotype scores from each parent tree. Haploid genotype scores were created from 27-locus haploid genotypes of two megagametophytes collected from each of 12

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Hao, Shuhong, Ming Ren, Dong Li, et al. "Fisher linear discriminant analysis for classification and prediction of genomic susceptibility to stomach and colorectal cancers based on six STR loci in a northern Chinese Han population." PeerJ 7 (May 28, 2019): e7004. http://dx.doi.org/10.7717/peerj.7004.

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Objective Gastrointestinal cancer is the leading cause of cancer-related death worldwide. The aim of this study was to verify whether the genotype of six short tandem repeat (STR) loci including AR, Bat-25, D5S346, ER1, ER2, and FGA is associated with the risk of gastric cancer (GC) and colorectal cancer (CRC) and to develop a model that allows early diagnosis and prediction of inherited genomic susceptibility to GC and CRC. Methods Alleles of six STR loci were determined using the peripheral blood of six colon cancer patients, five rectal cancer patients, eight GC patients, and 30 healthy con

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Biancofiore, Aldo. "On the degree of the discriminant locus of a smooth sectional surface of a (n+2)-fold with nonnegative Kodaira dimension." Monatshefte f�r Mathematik 105, no. 1 (1988): 35–42. http://dx.doi.org/10.1007/bf01471101.

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McAnany, Patricia A. "Stone-Tool Production and Exchange in the Eastern Maya Lowlands: The Consumer Perspective from Pulltrouser Swamp, Belize." American Antiquity 54, no. 2 (1989): 332–46. http://dx.doi.org/10.2307/281710.

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Ongoing controversy over the identification of mesoamerican centers as the locus for specialized production of stone tools is addressed by reference to a consumer locality in the eastern Maya Lowlands. Lithic data from Pulltrouser Swamp are used to shed light on the production intensity and scale of a distribution system centered at Colha, Belize. Debitage analyses of technological attributes, use wear, and metric dimensions contrast two contexts of lithic procurement at Pulltrouser Swamp: direct procurement of raw material and indirect procurement of finished tools. Each procurement context r

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Lu, Xin, Jinbang Yang, and Kang Zuo. "Strict Arakelov inequality for a family of varieties of general type." Electronic Research Archive 30, no. 7 (2022): 2643–62. http://dx.doi.org/10.3934/era.2022135.

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<abstract><p>Let $ f:\, X\to Y $ be a semistable non-isotrivial family of $ n $-folds over a smooth projective curve with discriminant locus $ S \subseteq Y $ and with general fiber $ F $ of general type. We show the strict Arakelov inequality</p> <p><disp-formula> <label/> <tex-math id="FE1"> \begin{document}$ {\deg f_*\omega_{X/Y}^\nu \over {{{\rm{rank\,}}}} f_*\omega_{X/Y}^\nu} &lt; {n\nu\over 2}\cdot\deg\Omega^1_Y(\log S), $\end{document} </tex-math></disp-formula></p> <p>for all $ \nu\in \mathbb N $ such that the $ \nu

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Tsumura, Yoshihiko, Hiroshi Motoike, and Kihachiro Ohba. "Allozyme variation of old Ginkgobiloba memorial trees in western Japan." Canadian Journal of Forest Research 22, no. 7 (1992): 939–44. http://dx.doi.org/10.1139/x92-125.

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Allozyme variation of 89 old memorial trees of Ginkgobiloba L. in western Japan were investigated. For 12 loci from 10 enzyme systems, the percentage of polymorphic loci (95% level), the number of alleles per locus, and the observed heterozygosity were 75.0%, 2.5, and 0.234, respectively. The variation of this species is relatively high in comparison with other gymnosperms. Genetic relationships between four regions (Kansai, Shikoku, North Kyushu, and South Kyushu) were investigated by using two multivariate procedures. Based on a principal component analysis, these four regional groups were n

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Guletskiĭ, V., та A. Tikhomirov. "Algebraic Cycles on Quadric Sections of Cubics in ℙ4 under the Action of Symplectomorphisms". Proceedings of the Edinburgh Mathematical Society 59, № 2 (2015): 377–92. http://dx.doi.org/10.1017/s0013091515000176.

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AbstractLet τ be the involution changing the sign of two coordinates in ℙ4. We prove that τ induces the identity action on the second Chow group of the intersection of a τ-invariant cubic with a τ-invariant quadric hypersurface in ℙ4. Let lτ and Πτ be the one- and two-dimensional components of the fixed locus of the involution τ. We describe the generalized Prymian associated with the projection of a τ-invariant cubic 𝓵 ⊂ P4 from lτ onto Πτ in terms of the Prymians 𝓅2 and 𝓅3 associated with the double covers of two irreducible components, of degree 2 and 3, respectively, of the reducible discr

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Rajora, Om P., and Bruce P. Dancik. "Population genetic variation, structure, and evolution in Engelmann spruce, white spruce, and their natural hybrid complex in Alberta." Canadian Journal of Botany 78, no. 6 (2000): 768–80. http://dx.doi.org/10.1139/b00-054.

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Genetic variation, structure, and evolution of 12 populations of putative Engelmann spruce (Picea engelmanii Parry), white spruce (Picea glauca (Moench) Voss), and Engelmann - white spruce natural hybrids from the sympatric areas and two populations of white spruce from the allopatric areas in Alberta were examined using 23 allozyme loci coding for 13 enzymes in needles. Although most of the alleles were widespread, unique alleles were found in 9 of the 14 populations. No species-specific allele was observed. However, allele frequency differences were observed between the putative Engelmann an

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Moazami Goudarzi, Katayoun, Désiré M. A. Belemsaga, G. Ceriotti, et al. "Caractérisation de la race bovine Somba à l’aide de marqueurs moléculaires." Revue d’élevage et de médecine vétérinaire des pays tropicaux 54, no. 2 (2001): 129. http://dx.doi.org/10.19182/remvt.9791.

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Le polymorphisme de quatre catégories de marqueurs du génome — 11 systèmes de groupes sanguins, 5 locus des protéines du lait, 2 locus de protéines sanguines et 33 microsatellites, soit au total 51 locus — a été analysé dans quatre populations ou « races » bovines d’Afrique de l’Ouest : les races taurines Somba et Lagunaire, la population de zébus Peuls soudanais et la population Borgou, qui provient du métissage entre taurins et zébus, en vue de caractériser le polymorphisme de la race Somba et d’évaluer sa distance génétique avec les trois autres populations, notamment la race Lagunaire avec

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Palombo, Valentino, Elena De Zio, Giovanna Salvatore, Stefano Esposito, Nicolaia Iaffaldano, and Mariasilvia D’Andrea. "Genotyping of Two Mediterranean Trout Populations in Central-Southern Italy for Conservation Purposes Using a Rainbow-Trout-Derived SNP Array." Animals 11, no. 6 (2021): 1803. http://dx.doi.org/10.3390/ani11061803.

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Mediterranean trout is a freshwater fish of particular interest with economic significance for fishery management, aquaculture and conservation biology. Unfortunately, native trout populations’ abundance is significantly threatened by anthropogenic disturbance. The introduction of commercial hatchery strains for recreation activities has compromised the genetic integrity status of native populations. This work assessed the fine-scale genetic structure of Mediterranean trout in the two main rivers of Molise region (Italy) to support conservation actions. In total, 288 specimens were caught in 2

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Kazmi, Syed Zaheer Abbas, Samiuddin Khan, and András Nábrádi. "What differentiates the entrepreneurs from non-entrepreneurs on nature and nurture?" Applied Studies in Agribusiness and Commerce 11, no. 3-4 (2017): 45–52. http://dx.doi.org/10.19041/apstract/2017/3-4/7.

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Based on the importance and contribution of entrepreneurship in economic development, it is vital to know that what underlying factors may promote the spirit of entrepreneurship? The entrepreneurship literature suggests two kinds of broader influencers or predictors for entrepreneurs and non-entrepreneurs “nature” and “nurture”. In this study “nature” includes the psychological or personality related factors; self-confidence, locus of control, risk-taking propensity and trust levels. The “nurture” is explained by the effects from society in general and friends and family in particular. To answ

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