Relevant bibliographies by topics / Test des composantes de la variance

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Test des composantes de la variance'

Author: Grafiati
Published: 25 January 2025
Last updated: 31 July 2025

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Journal articles on the topic "Test des composantes de la variance"

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Drunat, Jérôme, Gilles Dufrénot, and Laurent Mathieu. "Le taux de change du dollar contre le mark suit-il une dynamique non-lineaire? Une evaluation empirique sur donnees infra-journalieres." Recherches économiques de Louvain 64, no. 2 (1998): 159–82. http://dx.doi.org/10.1017/s0770451800004504.

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RésuméCet article présente une étude empirique relative aux dynamiques non-linéaires sur données à haute fréquence. Les séries de cotation utilisées sont celles du Dollar contre le Mark sur le marché londonien durant l'année 1994. Nous montrons que le caractère leptokurtique et asymétrique des distributions peut s'expliquer par la présence de non-linéarités dans la moyenne ou dans la variance conditionnelle des taux de rendement. Nous utilisons le test KPSS et le test du bispectre qui paraissent bien adaptés à nos séries. La composante non-linéaire de la variance conditionnelle est décrite par
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Kataliko, R. K., B. K. Muhasa, L. K. Ndulani, et al. "Variabilité et gain génétique des génotypes de haricot biofortifiés à l’Est de la République Démocratique du Congo." African Crop Science Journal 32, no. 1 (2024): 1–17. http://dx.doi.org/10.4314/acsj.v32i1.1.

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La compréhension du mécanisme génétique responsable du contrôle des caractères agronomiques est très importante dans la mise en évidence des méthodes de sélection en amélioration végétale. Cette étude veut apprécier le niveau de variabilité et gain génétique au sein des génotypes des haricots biofortifiés à Butembo et Lukanga à l’Est de la République Démocratique du Congo. Une expérimentation a été réalisée sur 164 génotypes biofortifiés en Fe et Zn et cinq variétés locales (non-biofortifiés). Les données ont été prises sur le nombre de jours à la floraison, nombre de jours jusqu’à 75 et 90% d
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Calamote, Catarina, Isabel Carolina Coelho, António Sérgio Silva, et al. "Comparison of the Masticatory Force (with 3D Models) of Complete Denture Base Acrylic Resins with Reline and Reinforcing Materials." Materials 14, no. 12 (2021): 3308. http://dx.doi.org/10.3390/ma14123308.

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The reinforcement of acrylic denture base remains problematic. Acrylic prosthesis fractures are commonly observed in prosthodontic practice and have not been reliably resolved. This study compared the resistance to masticatory force of acrylic bases of removable complete conventional prosthesis in 3D upper models. Forty acrylic base test specimens containing two types of reinforcement meshes (20 with glass fiber meshes (FIBER-FORCE®- Synca, Bio Composants MédicauxTM, Tullins, France), 20 with metal meshes (DENTAURUM®-Ispringen, Germany)), 20 with a conventional PMMA acrylic base (LUCITONE 199®
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Mehdi, MENCHIF, and ASSELAM Lahoucine. "La Responsabilité Sociale des Entreprises et satisfaction des clients : Cas des institutions bancaires au Maroc." International Journal of Business and Technology Studies and Research 5, no. 1 (2023): 14 pages. https://doi.org/10.5281/zenodo.7813548.

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<em>L&rsquo;objectif de cette contribution est d&rsquo;&eacute;tudier l&rsquo;impact des pratiques en RSE sur la satisfaction des clients bancaires au Maroc.&nbsp;Pour ce faire, nous avons test&eacute; la relation entre la RSE, avec des variables telles que la qualit&eacute; des services, la confiance et la fid&eacute;lit&eacute; des clients. Notre &eacute;chantillon est compos&eacute; de 124 clients&nbsp;marocains&nbsp;toutes cat&eacute;gories&nbsp;confondues.&nbsp;Nous avons effectu&eacute; une &eacute;tude exploratoire via une analyse factorielle en composante principale&nbsp;(ACP)&nbsp;et
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K. O., Kareem-Ibrahim, Abanikannda O. T. F., and Hassan Z. D. "Taxonomic discrimination of six poultry species as influenced by haematological and serum biochemical parameters." Nigerian Journal of Animal Production 50, no. 5 (2024): 96–106. https://doi.org/10.51791/njap.v50i5.8035.

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The binomial nomenclature method of classification (Taxonomy) of organisms developed by Linnaeus entails arranging animals and plants into natural, related groups based on structure, embryology, or biochemistry into kingdom, phylum, class, order, family, genus, and species. This study aimed at using haematological and biochemical parameters of blood obtained from six poultry birds in three different families: Phasinidae (Chicken, Turkey and Quail), Numidae (Guinea Fowl) and Anatidae (Goose and Duck), to investigate the haematological and biochemical parameters and then statistically classify t
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Assani, A. A., and S. Tardif. "Classification, caractérisation et facteurs de variabilité spatiale des régimes hydrologiques naturels au Québec (Canada). Approche éco-géographique." Revue des sciences de l'eau 18, no. 2 (2005): 247–66. http://dx.doi.org/10.7202/705559ar.

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Nous proposons onze nouvelles variables pour classifier, caractériser et analyser les facteurs de variabilité spatiale des régimes hydrologiques des affluents du fleuve Saint-Laurent au Québec. Ces variables se rapportent exclusivement aux débits mensuels et utilisent quatre (volume d’écoulement, période d’occurrence, durée et amplitude de variabilité intra-annuelle des débits) des cinq critères proposés par Richter et al. (1996) pour caractériser écologiquement les régimes hydrologiques. L’analyse en composantes principales de ces onze variables hydrologiques a permis d’extraire trois composa
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Mzoughi, Mohamed-Nabil, Safa Chaieb, and Karim Garrouch. "The effects of rhetorical ambiguity in advertising on comprehension and persuasion: moderating role of tolerance of ambiguity." Recherches en Sciences de Gestion No 123, no. 6 (2018): 103–34. https://doi.org/10.3917/e.resg.123.0103.

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Ce travail étudie la relation entre les différents niveaux d’ambiguïté rhétorique et la persuasion publicitaire. Cette dernière est appréhendée via l’émotion, elle-même abordée à travers les réactions affectives déclenchées par l’annonce. Le modèle conceptuel intègre une variable médiatrice : la compréhension, ainsi qu’une variable modératrice : la tolérance à l’ambiguïté. L’investigation empirique comporte une analyse en composantes principales, une analyse factorielle confirmatoire et une analyse de la variance. Les logiciels AMOS 18 et SPSS 17 ont permis d’obtenir des résultats présentant d
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Fady, Bruno. "Variabilité génétique des composantes de la croissance en hauteur du Sapin de Céphalonie (Abiescephalonica)." Canadian Journal of Forest Research 20, no. 9 (1990): 1453–60. http://dx.doi.org/10.1139/x90-192.

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The annual height increment of the shoot can be divided into two morphogenetic components: the number of stem units initiated in the bud prior to bud break and their mean length. Observations were made on the lateral shoots of 43 Abiescephalonica open-pollinated families from three provenances located in an experimental site in southern France. Genetic parameters of the two components were evaluated with an analysis of variance. Correlations both between components and with annual height increment were examined at the phenotypic, genotypic, and individual levels. Differences between provenance
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Baumgartner, Gary. "Une nouvelle méthode d'analyse factorielle pour la typologie des consommateurs." Recherche et Applications en Marketing (French Edition) 4, no. 3 (1989): 3–23. http://dx.doi.org/10.1177/076737018900400302.

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TYPER, une nouvelle méthode d'analyse factorielle de type Q, propose de corriger les défauts de l'analyse en composantes principales de type Q (ACPQ). Un test comparatif démontre que TYPER représente bien une amélioration par rapport à l'ACPQ. TYPER est ensuite appliqué à une étude de marketing politique. Les résultats sont meilleurs que ceux obtenus avec les algorithmes de typologie K-MEANS et WARD.
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Alajne, Fateh, and Ali Ferchichi. "Caractérisation Pomologique de 21 Cultivars Locaux de Figuier (Ficus carica L.) Cultivés dans les Oasis Tunisiennes." JOURNAL OF OASIS AGRICULTURE AND SUSTAINABLE DEVELOPMENT 1, no. 1 (2019): 27–33. http://dx.doi.org/10.56027/joasd.052019.

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La diversité pomologique du figuier (Ficus carica L.) dans les oasis tunisiennes a été étudiée en utilisant les descripteurs morphologiques. Vingt et un cultivars de figuier originaires des oasis de Kébili, Tozeur et Gafsa ont été analysés et comparés. L'analyse de la variance, l'analyse en composantes principales et l'analyse canonique hiérarchique de caractères liés aux fruits montrent une grande diversité au sein des cultivars étudiés. L'étude de cette diversité de germoplasme du figuier permet de détecter des cas homonymes et synonymies. Certains d'entre eux ont été sélectionnés. Parmi les
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Dissertations / Theses on the topic "Test des composantes de la variance"

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Guédon, Tom. "Tests des composantes de la variance dans les modèles à effets mixtes pour des petits échantillons. Application à l'étude de la variabilité génotypique chez Arabidopsis thaliana." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASM046.

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Les modèles à effets mixtes permettent d'analyser des données présentant une structure hiérarchique, telles que les données longitudinales qui sont des mesures collectées sur un même individu au cours du temps. Ces modèles prennent en compte la variabilité au sein des mesures effectuées sur chaque individu (variabilité intra-individuelle) et entre différents individus (variabilité inter-individuelle), grâce à deux types d'effets : les effets fixes, communs à tous les individus de la population, et les effets aléatoires, variables d'un individu à l'autre. Ces derniers sont modélisés par des var
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Hur, Chang Soo. "Variance bound test : a new approach." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1269522789.

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Jatta, Abdullah. "Test of Causality in Conditional Variance Hafner and Herwatz Test for Causality." Thesis, Örebro universitet, Handelshögskolan vid Örebro Universitet, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-47701.

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Shen, Paul. "Empirical Likelihood Tests For Constant Variance In The Two-Sample Problem." Bowling Green State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1544187568883762.

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Herbert, William J. "Understanding variance of proficiency test performance in Cincinnati's neighborhood elementary schools." Cincinnati, Ohio : University of Cincinnati, 2006. http://www.ohiolink.edu/etd/view.cgi?acc%5Fnum=ucin1148329452.

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HERBERT, WILLIAM J. "UNDERSTANDING VARIANCE OF PROFICIENCY TEST PERFORMANCE IN CINCINNATI'S NEIGHBORHOOD ELEMENTARY SCHOOLS." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1148329452.

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Mnassri, Baligh. "Analyse de données multivariées et surveillance des processus industriels par analyse en composantes principales." Phd thesis, Aix-Marseille Université, 2012. http://tel.archives-ouvertes.fr/tel-00749282.

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Ce mémoire de thèse présente une étude fondamentale enrichie par des contributions qui sont articulées autour de la modélisation de processus ainsi qu'un diagnostic de défauts en utilisant l'analyse en composantes principales (ACP). <br /> Dans l'objectif d'un choix optimal du modèle ACP, une étude comparative de quelques critères connus dans la littérature nous a permis de conclure que le problème rencontré est souvent lié à une ignorance des variables indépendantes et quasi-indépendantes. Dans ce cadre, nous avons réalisé deux démonstrations mettant en évidence les limitations de deux critèr
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Xiao, Yan. "Evaluating Variance of the Model Credibility Index." Digital Archive @ GSU, 2007. http://digitalarchive.gsu.edu/math_theses/39.

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Model credibility index is defined to be a sample size under which the power of rejection equals 0.5. It applies goodness-of-fit testing thinking and uses a one-number summary statistic as an assessment tool in a false model world. The estimation of the model credibility index involves a bootstrap resampling technique. To assess the consistency of the estimator of model credibility index, we instead study the variance of the power achieved at a fixed sample size. An improved subsampling method is proposed to obtain an unbiased estimator of the variance of power. We present two examples to inte
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Ma, Tingting. "Isotropy test and variance estimation for high order statistics of spatial point process." HKBU Institutional Repository, 2011. https://repository.hkbu.edu.hk/etd_ra/1297.

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Amiri, Saeid. "On variance estimation and a goodness-of-fit test using the bootstrap method /." Uppsala : Dept. of Energy and Technology, Swedish University of Agricultural Sciences, 2009. http://epsilon.slu.se/11451466.pdf.

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Books on the topic "Test des composantes de la variance"

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Cheung, Yin-Wong. A causality-in-variance test and its application to financial market prices. City Polytechnic of Hong Kong, Department of Economics and Finance, 1994.

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Czaplewski, Raymond L. Expected value and variance of Moran's bivariate spatial autocorrelation statistic for a permutation test. U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1993.

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Noh, Jaesun. A test of efficiency for the S&P 500 index option market using variance forecasts. National Bureau of Economic Research, 1993.

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Cohen, Benjamin H. Derivatives and asset price volatility: A test using variance ratios. 1996.

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Expected value and variance of Moran's bivariate spatial autocorrelation statistic for a permutation test. U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1993.

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Czaplewski, R. L. Expected value and variance of Moran's bivariate spatial autocorrelation statistic for a permutation test. 1993.

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Analysis of Pretest-Posttest Designs. Chapman & Hall/CRC, 2000.

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Bonate, Peter L. Analysis of Pretest-Posttest Designs. Taylor & Francis Group, 2000.

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Bonate, Peter L. Analysis of Pretest-Posttest Designs. Taylor & Francis Group, 2000.

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Bonate, Peter L. Analysis of Pretest-Posttest Designs. Taylor & Francis Group, 2000.

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Book chapters on the topic "Test des composantes de la variance"

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Pardo, Scott A. "Analysis of Variance." In Beyond the T-Test. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-84479-9_10.

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Rayat, Charan Singh. "Variance-Ratio Test and Analysis of Variance (ANOVA)." In Statistical Methods in Medical Research. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0827-7_12.

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Frieden, B. Roy. "The F-Test on Variance." In Probability, Statistical Optics, and Data Testing. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56699-8_13.

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Frieden, B. Roy. "The F-Test on Variance." In Probability, Statistical Optics, and Data Testing. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-97289-8_13.

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Hand, D. J., and C. C. Taylor. "Sequential and simultaneous test procedures." In Multivariate Analysis of Variance and Repeated Measures. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3143-5_5.

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Akashi, Fumiya, Masanobu Taniguchi, Anna Clara Monti, and Tomoyuki Amano. "Robust Causality Test of Infinite Variance Processes." In Diagnostic Methods in Time Series. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2264-9_6.

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Hartung, Joachim, and Bernard Voet. "An Asymptotic χ 2-Test for Variance Components." In Contributions to Stochastics. Physica-Verlag HD, 1987. http://dx.doi.org/10.1007/978-3-642-46893-3_15.

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Dalgaard, Peter. "Analysis of variance and the Kruskal–Wallis test." In Statistics and Computing. Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-79054-1_7.

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Vega, Diana, Ina Schieferdecker, and George Din. "Test Data Variance as a Test Quality Measure: Exemplified for TTCN-3." In Testing of Software and Communicating Systems. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-73066-8_24.

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Quicke, Donald, Buntika A. Butcher, and Rachel Kruft Welton. "Analysis of variance (ANOVA)." In Practical R for biologists: an introduction. CABI, 2021. http://dx.doi.org/10.1079/9781789245349.0013a.

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Abstract Analysis of variance is used to analyze the differences between group means in a sample, when the response variable is numeric (real numbers) and the explanatory variable(s) are all categorical. Each explanatory variable may have two or more factor levels, but if there is only one explanatory variable and it has only two factor levels, one should use Student's t-test and the result will be identical. Basically an ANOVA fits an intercept and slopes for one or more of the categorical explanatory variables. ANOVA is usually performed using the linear model function lm, or the more specif
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Conference papers on the topic "Test des composantes de la variance"

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Su, Houcheng, Bingli Wang, Daixian Liu, Jiao Li, Chen-Bin Feng, and Chi-Man Vong. "Towards Fully Test-Time Adaptation via Variance Balancing and Semantic Augmentation." In ICASSP 2025 - 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2025. https://doi.org/10.1109/icassp49660.2025.10887707.

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Ikeda, A., M. Ueda, and H. Tsuge. "Environmental Cracking Evaluation of Corrosion Resistant Alloys in H2S-CO2-Cl- Environment by Slow Strain Rate Tensile Test." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89007.

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Abstract A slow strain rate test (SSRT) is effective to survey materials selection for a hostile well such as deep sour gas. In order to use effectively data from different sources, it is necessary to make causes of error or variance clear and minimize data variance. In this paper, various factors affecting SSRT evaluation of corrosion resistant alloys (CRA) in H2S-CO2-C1- environment are investigated. Those are evaluation index, specimen dimensions, alloys and environmental factors. Through the course of this investigation, a guide line in SSRT evaluation is proposed in relation to stress cor
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Sutter, P., J. Leyer, H. Marchebois, et al. "Understanding and Controlling Variations in DCB Test Results." In CORROSION 2006. NACE International, 2006. https://doi.org/10.5006/c2006-06126.

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Abstract Two test labs working for a seamless pipe manufacturer launched a test program to better evaluate the DCB test variability and to understand the factors of variation. The objective was to be able to give the same KISSC values independently of the testing lab. Testing labs A and B evaluated their initial differences through inter-laboratory testing, selected the factors of variations and used an original Taguchi design of experiment approach that allowed the investigation of a quite large number of factors within a limited number of tests. Among the selected factors, variations of the
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Cheruku, Sumanth. "Uncertainty in Service Life Estimation and Probabilistic Service Life of Chloride Induced Steel Corrosion in Reinforced Concrete Structures." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09211.

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Abstract Service life estimates present the stakeholders with invaluable information that influences their decisions during the planning phase of a project. However, most service life estimates are a single, deterministic value despite recognition of the variance in the parameters used for the estimation. This paper presents the effect of, variance in some of the parameters that influence the initiation period of chloride induced corrosion in reinforced concrete structures, on the service life estimates. The effect of industry standard variances, including, variance allowed within ASTM test pr
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Farah, Mohamud M., and Muazu Mohammed. "Failure Analysis of Gas Separator Cooler Tube Leak During Service after Passing Inspection Test During Turn-Around Inspection." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11557.

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Abstract Failure analysis is performed by most companies in the oil and gas industries; to identify the cause of failure and to institute mitigation strategy to avoid any future occurrence. Localised corrosion is one of the difficult damage mechanisms to manage in the oil and gas sector, material selection is often used as mitigation against this threat. Generally most Nickel-based alloys have shown excellent pitting corrosion resistance and good mechanical properties for extended service; these are selected for services where localised corrosion such as pitting corrosion threat is predicted o
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Hadj SaÏd, M., L. Thollon, Y. Godio-Raboutet, J. H. Catherine, C. M. Chossegros, and D. Tardivo. "Modélisation 3D de l’os maxillaire dans l’analyse par éléments finis en implantologie orale : une nouvelle approche utilisant CBCT et anthropométrie." In 66ème Congrès de la SFCO. EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206603022.

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Objectif : Caractériser l’os maxillaire postérieur chez l’adulte d’un point de vue géométrique pour obtenir des modèles numériques standards par éléments finis. Matériel et méthodes : Les images CBCT maxillaires des patients qui ont visité le service de Chirurgie Orale du CHU de La Timone à Marseille, France ont été recueillies au cours de l’année 2016. Les sujets inclus devaient être âgés de plus de 21 ans et être édentés au moins à partir de la première prémolaire maxillaire. Les patients atteints d’une pathologie osseuse ou d’un traitement influençant le remodelage osseux n’ont pas été incl
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Atwood, Eugene. "“Managing process variance in analog designs”." In 2012 IEEE International Test Conference (ITC). IEEE, 2012. http://dx.doi.org/10.1109/test.2012.6401527.

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Li, Suyi. "Nonparametric variance control charts based on siegel-tukey test." In 2017 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM). IEEE, 2017. http://dx.doi.org/10.1109/ieem.2017.8290316.

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Krishnan, Shaji, Rene Jonker, and Leon van de Logt. "Variance Reduction for Supply Ramp Based Cheap RF Test Alternatives." In 12th IEEE European Test Symposium (ETS'07). IEEE, 2007. http://dx.doi.org/10.1109/ets.2007.44.

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Sullivan, Terrence B., and Keith Kirkpatrick. "Consideration of Co-Variance in Power Plant Test Uncertainty Calculations." In ASME 2007 Power Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/power2007-22095.

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One of the most important aspects of American Society of Mechanical Engineers (ASME) Performance Test Code (PTC) thermal performance testing is the proper determination of test uncertainty since the Uncertainty Analysis (UA) validates the quality of a test as well as demonstrates that the test meets code requirements. It can also carry a commercial relevance when test tolerances are linked to uncertainty figures. This paper introduces an approach to the calculation of the random component of uncertainty when covariance exists between certain primary measurements in thermal performance testing.
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Reports on the topic "Test des composantes de la variance"

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West, Kenneth. A Variance Bounds Test of the Linear Quardractic Inventory Model. National Bureau of Economic Research, 1985. http://dx.doi.org/10.3386/w1581.

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Noh, Jaesun, Robert Engle, and Alex Kane. A Test of Efficiency for the S&P Index Option Market Using Variance Forecasts. National Bureau of Economic Research, 1993. http://dx.doi.org/10.3386/w4520.

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Lo, Andrew, and A. Craig MacKinlay. The Size and Power of the Variance Ratio Test in Finite Samples: A Monte Carlo Investigation. National Bureau of Economic Research, 1988. http://dx.doi.org/10.3386/t0066.

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Clausen, Jay, Susan Frankenstein, Jason Dorvee, et al. Spatial and temporal variance of soil and meteorological properties affecting sensor performance—Phase 2. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41780.

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An approach to increasing sensor performance and detection reliability for buried objects is to better understand which physical processes are dominant under certain environmental conditions. The present effort (Phase 2) builds on our previously published prior effort (Phase 1), which examined methods of determining the probability of detection and false alarm rates using thermal infrared for buried-object detection. The study utilized a 3.05 × 3.05 m test plot in Hanover, New Hampshire. Unlike Phase 1, the current effort involved removing the soil from the test plot area, homogenizing the mat
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ประชัญคดี, ดวงนฤมล, พรรณพิไล เสกสิทธิ์ та สัมพันธ์ สิงหจันทร์. ธัยรอยด์ฮอร์โมนและภาวะเจริญพันธุ์ในโคนมพันธุ์ผสม : รายงานผลการวิจัย. จุฬาลงกรณ์มหาวิทยาลัย, 1999. https://doi.org/10.58837/chula.res.1999.69.

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ศึกษาความสัมพันธ์ของธัยรอกซินและไตรไอโอโดธัยโรนีน ที่มีต่อภาวะเจริญพันธุ์ในโคนมพันธุ์ผสม 10 ตัวด้วย Analysis of variance 2x8 factorial design และ Duncan’s new multiple range test โดยแบ่งแม่โคเป็น 2 กลุ่มๆ ละ 5 ตัว คือ กลุ่มผสมติด และกลุ่มผสมไม่ติด ตามผลของการติดตั้งท้องด้วยวิธีล้วงตรวจการเปลี่ยนแปลงของมดลูกและรังไข่ผ่านทางทวารหนัก วิเคราะห์ระดับธัยรอกซินและไตรไอโอโดธัยโรนีนในซีรั่มของโคทั้งสองในวันที่ 0 (วันที่ทำการผสมทียม) 4, 8, 12, 16, 20, 25 และ 41 วันหลังการผสมเทียม (8 ระยะ) โดยวิธีเรดิโออิมมิวโนเอสเสย์ พบว่า โคกลุ่มที่ผสมไม่ติดมีระดับธัยรอกซินสูงกว่าโคที่ผสมติด (P &lt; 0.05) ไม่มีความแตกต
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Moore, L. M., F. M. Jr Byers, and D. E. Broxton. Statistical test of reproducibility and operator variance in thin-section modal analysis of textures and phenocrysts in the Topopah Spring member, drill hole USW VH-2, Crater Flat, Nye County, Nevada. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/137503.

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สุนทรไชยา, รังสิมันต์, та วิลาสินี ดุษณีเสนีย์. ผลของการพยาบาลแบบมีส่วนร่วมสำหรับผู้ป่วยโรคซึมเศร้าวัยสูงอายุในพื้นที่ปฐมภูมิ : รายงานการวิจัย. คณะพยาบาลศาสตร์ จุฬาลงกรณ์มหาวิทยาลัย, 2013. https://doi.org/10.58837/chula.res.2013.9.

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การวิจัยครั้งนี้เป็นการวิจัยกึ่งทดลอง มีวัตถุประสงค์ เพื่อเปรียบเทียบอาการซึมเศร้าและความสามารถในการทำหน้าที่ของผู้ป่วยโรคซึมเศร้าวัยสูงอายุที่ได้รับได้รับการพยาบาลแบบมีส่วนร่วม ระยะก่อน ระยะสิ้นสุด และติดตามผล 4 สัปดาห์ ภายในกลุ่มและระหว่างกลุ่มทดลองและกลุ่มควบคุม กลุ่มตัวอย่างประกอบด้วย กลุ่มผู้ป่วยโรคซึมเศร้าวัยสูงอายุที่มารับการรักษาที่โรงพยาบาลชุมชนในพื้นที่ปฐมภูมิ จำนวน 77 คน ผู้ดูแล จำนวน 38 คน และพยาบาลวิชาชีพ จำนวน 20 คน โดยแบ่งกลุ่มตัวอย่างผู้ป่วยโรคซึมเศร้า วัยสูงอายุเป็นกลุ่มทดลอง จำนวน 38 คน กลุ่มควบคุม จำนวน 39 คน กลุ่มทดลองได้รับการพยาบาลแบบมีส่วนร่วมโดยความร่วมมือของทีมแพทย์ทั่
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กิจภากรณ์, สุวรรณา, та สุพัตรา ศรีไชยรัตน์. การใช้สารเร่งการเจริญเติบโตในกระต่าย : รายงานผลการวิจัย. จุฬาลงกรณ์มหาวิทยาลัย, 1997. https://doi.org/10.58837/chula.res.1997.41.

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กระต่ายลูกผสมคละเพศพันธุ์นิวซีแลนไวท์กับพื้นเมือง อายุ 1 เดือน จำนวน 56 ตัว สุ่มออกเป็น 7 กลุ่มๆ ละ 8 ตัว ได้รับอาหารข้นที่มีโปรตีน 160 กรัม/กก. พลังงานย่อยได้ 3,300 กิโลแคลอรี่/กก. ของอาหาร และได้รับหญ้าขนเป็นแหล่งอาหารหยาบ โดยให้กินเต็มที่ กระต่ายกลุ่มที่ 1 เป็นกลุ่มควบคุม อีก 6 กลุ่มที่เหลือทำการเสริมสารปฏิชีวนะออกซีเททระไซคลินในระดับ 5 10 20 และเวอร์จิเนียไมซินในระดับ 10 20 และ 40 มก/กก. ของอาหาร ตามลำดับ ทำการบันทึกข้อมูลน้ำหนักตัว ปริมาณอาหารที่กินทุกสัปดาห์ เป็นเวลานาน 10 สัปดาห์ จากนั้นทำการสุ่มกระต่าย 4 ตัวจากแต่ละกลุ่มนำมาฆ่าเพื่อตรวจวัดคุณภาพซาก และเก็บชิ้นเนื้อบริเวณสะโพกเพื่อตรวจห
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Micco, Alejandro, and Carmen Pagés. Employment Protection and Gross Job Flows: A Differences-in-Differences Approach. Inter-American Development Bank, 2004. http://dx.doi.org/10.18235/0010730.

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This paper examines the effect of employment protection regulation on gross job flows in a sample of developed and developing countries. By implementing a differences-in-differences test we lessen the potentially severe endogeneity and omitted variable problems associated with cross-country regressions. This test is based on the hypothesis that job security regulations are more binding in some sectors of economic activity than in others, depending on sector-specific characteristics such as the variance of demand or technological shocks. Unlike most of the existing literature, our analysis indi
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Becker, Sarah, Heather Sussman, S. Blundell, Vern Vanderbilt, and Igor Semyonov. Analysis of spectropolarimetric responses in the visible and infrared for differentiation between similar materials. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/45422.

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Spectropolarimetric research has focused on target detections of materials that have a high degree of contrast from background materials, such as identification of a manmade object embedded in a vegetative background. This study presents an approach using spectropolarimetric imagery in visible, shortwave infrared, and longwave infrared bands to differentiate between similar natural and manmade materials. The method employs Michelson contrast and Kruskal-Wallis one-way analysis of variance (ANOVA) H-test to determine if a distinction can be found in pairwise comparisons of similar and different
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