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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Structural validity of the emotional quotient inventory (EQi) within an insurance company

De Franca, Melinda Maria Nobrega 12 November 2012 (has links)
In the world of work, psychological instruments are often used for the purposes of selection and development (Van de Vijver & Rothmann, 2004). According to Van der Merwe (1999), psychological tests are commonly used to determine whether employees have the necessary skills for a specific job. However, much controversy still exists about the use of such instruments, particularly in the multicultural South African context, as not all psychometric tests accommodate individuals from different cultures and different socio-economic and educational backgrounds. The objective of this study was to assess the structural validity of the Emotional Quotient Inventory (EQi) developed by Bar-On. The EQi measurement consist of 133 items and was completed by a total of 1 104 participants in the South African insurance sector drawn by means of convenient sampling. An exploratory factor analysis (EFA) was performed, from which only nine factor loadings resulted out of an anticipated fifteen. Overall, the factor loadings did not provide a good representation of the Bar-On theoretical model. In addition, a confirmatory factor analysis was conducted to test if the data fitted the Bar-On EQI theoretical model. The results suggest a poor fit and therefore the structural validity of the EQI can be questioned for the respondents from an insurance company. / Dissertation (MCom)--University of Pretoria, 2012. / Human Resource Management / MCom / Unrestricted
12

Einfluss der Protamin-Dosierung auf den postoperativen Blutverlust und Transfusionsbedarf bei Herzoperationen / Influence of Protamine-Dosage on postoperative Blood Loss in Cardiac Surgery with Heparin

Kunz, Christine January 2018 (has links) (PDF)
Der postoperative Blutverlust stellt für Patienten, die sich einem herzchirurgischen Eingriff unterziehen müssen, ein nicht zu unterschätzendes Risiko dar. Blutverlust erfordert Revisionen und Bluttransfusionen. Beides kann zu einem längeren Krankenhausaufenthalt und zu perioperativen Komplikationen führen. In Anbetracht der dadurch erhöhten Mortalität und auch der hohen Kosten, die sich durch einen solchen Verlauf ergeben können, ist die Minimierung des Blutverlustes ein wichtiges Ziel. Bei Operationen mit einer Herz-Lungen-Maschine ist die Applikation von Heparin zur Hemmung der Blutgerinnung erforderlich. Nach Beendigung der EKZ erfolgt die Antagonisierung durch Protamin. In unserer Studie haben wir den Einfluss des Protamin-Heparin-Quotienten auf den postoperativen Blutverlust und den Transfusionsbedarf untersucht. An einem Kollektiv von 182 Patienten konnten wir retrospektiv zeigen, dass Frauen von einer strengen Antagonisierung profitieren. In Abhängigkeit vom Geschlecht zeigte sich zunächst ein Unterschied bezüglich des Verbrauchs an EK gesamt (p = 0,019) und intraoperativ (p < 0,001). Zudem konnten wir zeigen, dass Frauen, die mit einem großen Protamin-Heparin-Quotienten antagonisiert wurden, eine niedrigere Verlustrate von Blut, erfasst als Drainagemenge pro KG [ml/kg] (p = 0,032) beziehungsweise pro KOF nach Mosteller [ml/m²] (p = 0,040), aufwiesen. Auch der Transfusionsbedarfs an EK war bei diesem Kollektiv geringer (p = 0,048). In einer Extremgruppenanalyse mit Vergleich der Patienten mit dem höchsten und dem geringsten Protamin-Heparin-Quotienten konnten diese Ergebnisse bestätigt werden. Auch hier zeigten sich Unterschiede bezüglich Drainagemenge pro KG [ml/kg] (p = 0,025) und Gesamtbedarf an EK (p = 0,011). Entsprechend der erhobenen Ergebnisse ist ein Verhältnis von Protamin zu Heparin von 1:1 im herzchirurgischen Patientenkollektiv anzustreben . Weitere prospektiv randomisierte und kontrollierte Studien sind nötig, um diese ersten Ergebnisse zu bestätigen und eine Standardisierung der Antagonisierung von Heparin zu erarbeiten. Insbesondere die unterschiedlichen Auswirkungen bei Frauen und Männern bieten einen interessanten Anhaltspunkt, der in der Literatur so noch nicht untersucht wurde. / Objectives: Usage of cardiopulmonary bypass during cardiac surgery influences blood coagulation and leads to increased postoperative bleeding and transfusion requirements. The dosage of protamine used for antagonisation of heparin is still controversial. We analyzed the antagonisation’s influence on postoperative bleeding and transfusion requirement. Methods: 182 patients undergoing coronary artery bypass grafting (CABG), cardiac valve surgery or combined procedures in 2005 and 2006 were included in a retrospective matched pair study. They were matched for age, sex and operative approach. Four groups of similar size were built on the basis of the ratio of protamine to heparin (group 1: m=0,788; group 2: m=0,995; group 3: m=1,117; group 4: m=1,384). Results: Analysis of variance (ANOVA) with the four groups of protamine-heparin-ratio and sex (male vs. female) and its interaction was calculated. The postoperative chest tube drainage per kg weight and requirement of erythrocyte concentrates are significantly increased in female members of groups with lower ratio (p=0,032 and p=0,048). Furthermore the comparison of group 1 and 4 shows significant differences regarding intraoperative usage of platelet concentrates (p=0,039). The multivariate analysis of variance (MANOVA) considering the four groups and sex shows significant increases of chest tube drainage per kg weight (p=0,025) and need for erythrocyte concentrates (p=0,011). Conclusion: According to these results women undergoing on-pump cardiac surgery should be antagonized with a stricter ratio of protamine to heparin. Thus it is possible to reduce both postoperative blood loss and transfusion requirements. We recommend a protamine-heparinratio of 1:1 according to the group showing the lowest chest tube drainage.
13

Cops and Robbers in Cincinnati: A Spatial Modeling Approach for Examining the Effects of Aggressive Policing

Hall, Davin 05 October 2007 (has links)
No description available.
14

Relação de equivalência, conjunto quociente e aplicações / Equivalence relation, quotient set and applications

Frota, Marcelo Briseno 07 1900 (has links)
FROTA, M. B. Relação de equivalência, conjunto quociente e aplicações. 2017. 94 f.Dissertação (Mestrado em Matemática em Rede Nacional) - Departamento de Matemática, Universidade Federal do Ceará, Fortaleza, 2017 / Submitted by Jessyca Silva (jessyca@mat.ufc.br) on 2017-07-18T18:48:42Z No. of bitstreams: 1 2017_dis_mbfrota.pdf: 1705952 bytes, checksum: e6627661f34b5b55d718b5ce2d30aa38 (MD5) / Rejected by Rocilda Sales (rocilda@ufc.br), reason: Bom dia, Revisei a Dissertação de MARCELO BRISENO FROTA e encontrei alguns erros de formatação que devem ser corrigidos pelo autor. Tais erros estão listados a seguir: 1- CAPA (o quarto elemento da capa deve ser alterado para: PROGRAMA DE PÓS-GRADUAÇÃO EM MATEMÁTICA EM REDE NACIONAL) 2- FOLHA DE ROSTO ( A formatação deste elemento do trabalho deve seguir o padrão constante no GUIA DE NORMALIZAÇÃO DE TRABALHOS ACADÊMICOS DA UFC, o mesmo encontra-se disponível no endereço eletrônico: http://www.biblioteca.ufc.br/images/arquivos/documentos_tecnicos/guia_normalizacao_trabalhos_ufc_2013.pdf 3- EPÍGRAFE (a formatação da epígrafe também deve seguir o padrão do GUIA DE NORMALIZAÇÃO) 4- RESUMO E ABSTRACT (retire o recuo de parágrafo da primeira linha do RESUMO e do ABSTRACT. Retire o sublinhado presente no termo KEYWORDS 5- SUMÁRIO (consulte o GUIA DE NORMALIZAÇÃO e verifique a formatação adequada para os títulos de capítulos, seções e subseções) OBS.: revise os títulos dos capítulos e das seções ao longo do trabalho, pois a formatação desses elementos deve ser a mesma do sumário. Retire também o último ponto final que existe na numeração de algumas seções e subseções, ficando da seguinte forma: “2.2.1”, no caso de dúvidas consulte o GUIA. 6- Espaço entre seções (insira um espaço duplo entre o final de uma seção e o título de outra, com um espaço simples entre o título e o primeiro parágrafo) 7- REFERÊNCIAS (este item do trabalho deve seguir o padrão ABNT, caso tenha dúvidas você poderá encontrar as referências na forma correta na página de pesquisa de livros da Biblioteca Universitária, clicando no item “Referências”, após encontrar o exemplar desejado. Segue o link: https://pergamum.ufc.br/pergamum/biblioteca/index.php Atenciosamente, on 2017-07-19T15:38:17Z (GMT) / Submitted by Jessyca Silva (jessyca@mat.ufc.br) on 2017-07-21T19:24:34Z No. of bitstreams: 1 2017_dis_mbfrota.pdf: 1707590 bytes, checksum: 8a489a3e84535cf0e3023a7f57ddbc65 (MD5) / Rejected by Rocilda Sales (rocilda@ufc.br), reason: Boa tarde, Estou reenviando a Dissertação de MARCELO BRISENO FROTA, pois há erros de preenchimento no Repositório Institucional, que devem ser corrigidos quem faz o depósito no sistema e erros em algumas partes do trabalho que devem ser alterados pelo autor do texto. Erros no repositório: 1- Deve ser inserido o título do trabalho em inglês no Repositório Institucional. 2- Devem ser inseridas as Keywords abaixo das palavras chaves na ficha do Repositório. Erros na Dissertação: 1- FICHA CATALOGRÁFICA (está faltando a ficha catalográfica da Dissertação, a mesma pode ser elaborada no sistema CATALOG, disponível no endereço eletrônico: http://fichacatalografica.ufc.br/ 2- FOLHA DE APROVAÇÃO (deve ser inserida a folha de aprovação do trabalho após a ficha catalográfica; ressaltamos que, para resguardar as assinaturas dos membros da banca examinadora, a folha de aprovação não deve estar assinada) 3- INVERSÃO DE PARTES (a página com a epígrafe e com os agradecimentos estão invertidas: primeiro deve-se colocar a página dos agradecimentos e em seguida a da epígrafe) 4- SUMÁRIO (sumário apresenta erros de digitação e formatação. Assim, deve ser retirado o último ponto final que aparece depois de alguns números. Ex.: “2.2.1.” retire o último ponto, ficando “2.2.1” Com relação aos erros de formatação, os títulos de todas as seções primarias (2.1 Construção do ...) devem estar com a formatação “CAIXA BAIXA e NEGRITO”. As seções secundárias (Ex.: 2.2.1 Adição de ...) devem apresentar a formatação “CAIXA BAIXA, SEM NEGRITO” OBS.: os títulos dos capítulos e seções ao longo do trabalho apresentam os mesmos erros citados no item 4. Por isso, recomendo que revise o texto e corrija tais erros. Em caso de dúvidas consulte o Guia de Normalização de Trabalhos Acadêmicos da UFC, disponível no endereço eletrônico: http://www.biblioteca.ufc.br/images/arquivos/documentos_tecnicos/guia_normalizacao_trabalhos_ufc_2013.pdf Atenciosamente, on 2017-07-24T16:02:50Z (GMT) / Submitted by Jessyca Silva (jessyca@mat.ufc.br) on 2017-07-26T14:32:42Z No. of bitstreams: 1 2017_dis_mbfrota.pdf: 1744589 bytes, checksum: ccb31928aa020b878ac4880006c8c513 (MD5) / Approved for entry into archive by Rocilda Sales (rocilda@ufc.br) on 2017-07-26T15:18:47Z (GMT) No. of bitstreams: 1 2017_dis_mbfrota.pdf: 1744589 bytes, checksum: ccb31928aa020b878ac4880006c8c513 (MD5) / Made available in DSpace on 2017-07-26T15:18:48Z (GMT). No. of bitstreams: 1 2017_dis_mbfrota.pdf: 1744589 bytes, checksum: ccb31928aa020b878ac4880006c8c513 (MD5) Previous issue date: 2017-07 / This work initially aims at presenting the construction of integers, rational and real, as well as their equivalence relations. We will also analyze the equivalence classes in a quotient space, the theorem of the nucleus and the image, form of Jordan and finalizing with the study of surfaces quotients: projective plane, torus and bottle of Klein. / Este trabalho visa inicialmente apresentar a construção dos números inteiros, racionais e reais, bem como suas relações de equivalência. Serão também analisadas as classes de equivalências em um espaço quociente, o teorema do núcleo e da imagem, forma de Jordan e finalizando com o estudo das superfícies quocientes: plano projetivo, toro e garrafa de Klein.
15

Consistance des statistiques dans les espaces quotients de dimension infinie / Consistency of statistics in infinite dimensional quotient spaces

Devilliers, Loïc 20 November 2017 (has links)
En anatomie computationnelle, on suppose que les formes d'organes sont issues des déformations d'un template commun. Les données peuvent être des images ou des surfaces d'organes, les déformations peuvent être des difféomorphismes. Pour estimer le template, on utilise souvent un algorithme appelé «max-max» qui minimise parmi tous les candidats, la somme des carrées des distances après recalage entre les données et le template candidat. Le recalage est l'étape de l'algorithme qui trouve la meilleure déformation pour passer d'une forme à une autre. Le but de cette thèse est d'étudier cet algorithme max-max d'un point de vue mathématique. En particulier, on prouve que cet algorithme est inconsistant à cause du bruit. Cela signifie que même avec un nombre infini de données et avec un algorithme de minimisation parfait, on estime le template original avec une erreur non nulle. Pour prouver l'inconsistance, on formalise l'estimation du template. On suppose que les déformations sont des éléments aléatoires d'un groupe qui agit sur l'espace des observations. L'algorithme étudié est interprété comme le calcul de la moyenne de Fréchet dans l'espace des observations quotienté par le groupe des déformations. Dans cette thèse, on prouve que l'inconsistance est dû à la contraction de la distance quotient par rapport à la distance dans l'espace des observations. De plus, on obtient un équivalent de biais de consistance en fonction du niveau de bruit. Ainsi, l'inconsistance est inévitable quand le niveau de bruit est suffisamment grand. / In computational anatomy, organ shapes are assumed to be deformation of a common template. The data can be organ images but also organ surfaces, and the deformations are often assumed to be diffeomorphisms. In order to estimate the template, one often uses the max-max algorithm which minimizes, among all the prospective templates, the sum of the squared distance after registration between the data and a prospective template. Registration is here the step of the algorithm which finds the best deformation between two shapes. The goal of this thesis is to study this template estimation method from a mathematically point of view. We prove in particular that this algorithm is inconsistent due to the noise. This means that even with an infinite number of data, and with a perfect minimization algorithm, one estimates the original template with an error. In order to prove inconsistency, we formalize the template estimation: deformations are assumed to be random elements of a group which acts on the space of observations. Besides, the studied algorithm is interpreted as the computation of the Fréchet mean in the space of observations quotiented by the group of deformations. In this thesis, we prove that the inconsistency comes from the contraction of the distance in the quotient space with respect to the distance in the space of observations. Besides, we obtained a Taylor expansion of the consistency bias with respect to the noise level. As a consequence, the inconsistency is unavoidable when the noise level is high.
16

Quotient Spaces Generated by Thomae's Function over the Real Line

Reiter, Chase Stephen 09 May 2023 (has links)
No description available.
17

Inégalités définissant l'espace d'orbites d'un groupe fini

Marcoux, David January 2006 (has links)
Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.
18

Impact de l'âge et du sexe sur le quotient respiratoire à jeun

St-Onge, Maxime January 2004 (has links)
Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.
19

Die Wertigkeit des sFlt-1/PlGF-Quotienten als Prädiktionsmarker bei Schwangeren mit erhöhtem Präeklampsierisiko

Husse, Sorina 15 May 2017 (has links) (PDF)
Einleitung: Die Dysbalance proangiogener (Placental Growth Factor = PlGF) und antiangiogener Faktoren (soluble fms-like tyrosine kinase 1 = sFlt-1) gilt heute als pathophysiologische Grundlage bei der Entstehung einer Präeklampsie (PE), eines HELLP-Syndroms (Haemolysis, Elevated Liver enzymes, Low Platelets) oder einer intrauterinen Wachstumsretardierung (IUGR). Der sFlt1/PlGF-Quotient, ein sensitiver und robuster diagnostischer Marker, ist bereits Wochen vor der Krankheitsmanifestation erhöht. Ziel dieser Studie war es, die Wertigkeit des sFlt1/PlGFQuotienten als prädiktiven Faktor bei Risikopatientinnen zu untersuchen. Patienten und Methode: In diese prospektive Studie wurden 68 Patientinnen mit einer Einlingsschwangerschaft und mindestens einem Risikofaktor für das Auftreten einer PE, eines HELLP-Syndrom oder einer IUGR im Schwangerschaftsverlauf eingeschlossen. Die Patientinnen wurden je nach Verlauf der Schwangerschaft in eine Gruppe mit Symptomen (Fallgruppe) und eine Gruppe ohne Symptome (Kontrollgruppe) für eine der oben genannten Erkrankungen unterteilt. Der sFlt1/PlGF-Quotient wurde bei der Aufnahme in die Studie und im weiteren Schwangerschaftsverlauf bestimmt. Ergebnisse: Eine PE, ein HELLP-Syndrom oder eine IUGR trat bei 41 % der Risikopatientinnen auf. Der absolute Wert des sFlt-1/PlGF-Quotienten war nur bei der Gruppe mit Symptomen auf ≥ 85 erhöht und zeigte sich in der 25 + 0-31 + 0 SSW (p = 0,005) und ab der 35 + 0 SSW (p = 0,044) als prädiktiver Faktor für eine PE, ein HELLP-Syndrom oder eine IUGR. Ab 7–10 Wochen vor der Entbindung war, in der Fallgruppe stärker als in der Kontrollgruppe, ein Anstieg des sFlt1/PlGFQuotienten zu beobachten. Dieser war 0–2 Wochen vor der Entbindung bei beiden Gruppen (Kontrollgruppe (MW ± SA 66,9 ± 134) vs. Fallgruppe (MW ± SA 393,3 ± 147,4, p = 0,021) am stärksten und zeigte sich ebenfalls als prädiktiver Faktor für eine der genannten Schwangerschaftserkrankungen (p = 0,025). Schlussfolgerung: Bei Risikoschwangeren kann der sFlt1/PlGF-Quotient für die Einschätzung des individuellen Risikos für eine PE, ein HELLP-Syndrom oder eine IUGR im Schwangerschaftsverlauf genutzt werden. Wiederholte Messungen des Quotienten versprechen eine risikoangepasste Betreuung dieser Patientinnen.
20

Effectiveness of a Reading Clinic by Levels

Walker, Billy Wayne, 1929- 08 1900 (has links)
The purpose of this study was to identify reading achievement of pupils assigned to the reading clinic and analyze and compare this achievement by grade levels with levels of intelligence. More specifically, the investigation attempted to determine: 1. The grade level at which the reading clinic was most effective; 2. The intelligence level at which the reading clinic was most effective; 3. The statistical significance of the variation in group intelligence test IQ's; and 4. The correlation between group intelligence test IQ's and total reading achievement.

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