408 research outputs found
On Erdős-Ko-Rado for random hypergraphs
No full textOn Erdős-Ko-Rado for Random Hypergraphs o by Arran Hamm Dissertation Director: Jeff Kahn Denote by Hk (n, p) the random k-graph in which each k-subset of {1, . . . , n} is present with probability p, independent of other choices. This dissertation addresses the question: for which p0 will Hk (n, p) satisfy the “Erd˝s-Ko-Rado property” provided that o p > p0 ? This question was first studied by Balogh, Bohman, and Mubayi where they dealt mainly with k 0). Our first main result gives the desired p0 when k 0 such that if n = 2k + 1 and p > 1 − ε, then Hk (n, p) has the EKR property a.s. iiPh.D.Includes bibliographical referencesby Arran Ham
Car safety for children aged 4-12 : real world evaluations of long-term injury outcome, head injury causation scenarios, misuse, and pre-crash manoeuvre kinematics
No full textChild casualties in car crashes have decreased over the years. Nevertheless, occupant safety in rear seats, especially for children 4-12 years old, needs further attention because motor vehicle crashes remain the leading cause of death and long-term health consequences for children. The aim of this thesis was to obtain comprehensive knowledge of real-life situations for restrained, forward-facing, rear-seated children aged 4-12 years, in frontal car crashes as a basis for vehicle safety improvements to reduce long-term health consequences.The thesis is comprised of four studies based on child-specific data from Sweden and the US. Study I was based on injury data from insurance claim files, covering 2619 injured children in Sweden. Study II was an experimental study of restraint misuse, including 130 Swedish children. Study III analyzed crash data included 27 cases from two US databases, to determine injury causation scenarios. Study IV was a driving study of how pre-crash maneuvers affect child occupant kinematics with 16 children included.The results of Study I emphasized the importance of looking beyond acute, severe injuries and also examine injuries (regardless of initial injury severity) resulting in permanent medical impairment. The vast majority of injuries with the higher degree of permanent medical impairment were severe injuries to the head. The most frequent injuries leading to permanent medical impairment were minor injuries to the neck and head. To reduce the risk of head injuries among children in car crashes, a fundamental step is to ensure that vehicle restraint systems are adapted to the child, physically and behaviorally, and that the child is properly restrained. An experimental study (Study II) of children using integrated booster cushions compared to aftermarket belt positioning booster cushions, showed that misuse related to buckling up, a problem for decades, can be reduced to a minimum by the design of an integrated booster cushion. Minimizing misuse will lead to increases in proper positioning of the restraint on the child and may translate to reductions in head injury risk. Therefore, car manufacturers should focus on integrated booster cushions, preferably as standard equipment.Even with proper use, however, restrained children in rear seats sustained head injuries in frontal impacts by impacting their heads on the side interior and on the seat back in front of them. Oblique impacts and pre-crash steering maneuvers contributed to both these injurycausation scenarios (Study III). Therefore, pre-crash steering maneuvers were further explored in a driving study and it was confirmed that these common pre-crash maneuvers can result in an unstable restraint situation that may potentially compromise rear occupant safety in the event of a crash (Study IV).In conclusion, the primary recommendation as a result of this research is to protect the head and neck of child occupants from both minor and severe injuries, since all severity levels of injuries may result in long-term consequences. Frontal impacts, including oblique impacts or maneuvers prior to impact, need to be addressed to develop “tolerant” restraint systems. Furthermore, it is recommendable to design and use vehicle-built-in restraint systems to improve crash safety among children, by facilitating proper use of the restraint and placement on the child, as has been previously done for front-seated adults. To incentivize vehicle manufacturers to accelerate the implementation of child safety improvements within their vehicles, an assessment of child safety for 4-12-year-old children should be included in consumer rating programs and legal requirements.List of scientific papersI. Bohman K, Stigson H, Krafft M. Long-term medical consequences for child occupants 0-12 years injured in car crashes. [Submitted]II. Osvalder AL, Bohman K. Misuse of booster cushions - an observation study of children's performance during buckling up. Annals of Advances in Automotive Medicine. 2008 Oct; 52: 49-58. https://pubmed.ncbi.nlm.nih.gov/19026222III. Bohman K, Arbogast KB, Boström O. Head injury causation scenarios for belted, rear-seated children in frontal impacts. Traffic Injury Prevention. 2011 Feb; 12(1): 62-70. https://doi.org/10.1080/15389588.2010.526159 IV. Bohman K, Stockman I, Jakobsson L, Osvalder AL, Boström O, Arbogast KB. Kinematics and shoulder belt position of child rear seat passengers during vehicle maneuvers. Annals of Advances in Automotive Medicine. 2011 Oct; 55: 15-26. https://pubmed.ncbi.nlm.nih.gov/22105379</p
A analítica do poder e o direito: as possibilidades do pluralismo jurídico como resposta dinâmica do direito às relações de poder
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Jurídicas. Programa de Pós-Graduação em DireitoTrata-se de dissertação que investiga a possibilidade do Pluralismo Jurídico responder a uma sociedade cujas relações de poder se desenvolvem da maneira como Foucault as analisou. Parte-se de um estudo da obra do período predominantemente genealógico de Michel Foucault, em torno dos anos 70, para entender-se de que maneira o poder constitui-se fora do âmbito estatal. Analisam-se as diferenças entre poder e violência para, então, entender suas diferenças. No segundo capítulo investigam-se as teorias que concentram no Estado todo o poder, inclusive o do monopólio da produção legislativa e as críticas a este modelo levantadas pelo Pluralismo Jurídico. No terceiro capítulo correlaciona-se a análise do poder levantada por Foucault e a produção de normas jurídicas fora do âmbito estatal defendida pelo Pluralismo. A partir das pesquisas realizadas, defende-se a possibilidade do Pluralismo Jurídico constituir-se uma resposta válida à dinâmica social proposta por Foucault
ESTUDIO DE LAS DIMENSIONES QUE FAVORECEN U OBSTACULIZAN EL DESEMPEÑO LABORAL EN EL PERSONAL DEL DEPARTAMENTO DE VENTAS DE LA COMPAÑÍA IVAN BOHMAN C.A. EN EL AÑO 2015
No full textPDFEl presente trabajo fue realizado en el departamento de ventas de la empresa IVAN BOHMAN C.A. comercializadora de productos en la ciudad de Guayaquil el estudio implica un proceso de clasificación, tabulación, análisis e interpretación de datos que nos da a conocer los resultados positivos y/o negativos mediante los instrumentos de encuesta de evaluación de desempeño y una entrevista estructurada.
Estos instrumentos nos ayudan a detectar las variables de liderazgo personal, comunicación, habilidad analítica, trabajo en equipo, integridad, orientación a resultados identificando estilos personales, rendimiento, debilidades, habilidades profesionales y personales de un colaborador implementando estrategias de mejoramiento.
Para poder llevar a cabo este proyecto se utilizó un tipo de investigación descriptiva, cuantitativa con método inductivo y deductivo, participaron 41 colaboradores los resultados se evidencia que es desfavorable el liderazgo y la variable favorable es la integridad.
El presente trabajo de investigación se elaboró con la finalidad que sirva de guía para evaluar el desempeño de los colaboradores del área de ventas conociendo el perfil laboral, habilidades y destrezas que mantiene el colaboradorThis work was done in the sales department of the company IVAN BOHMAN CA marketer of products Guayaquil study involves a process of classification, tabulation, analysis and interpretation of data that reveals the positive and / or negative results by the survey instruments and performance evaluation a structured interview.
These tools help us to detect variables of personal leadership, communication, analytical skills, teamwork, and integrity, results orientation identifying personal style, performance, and weaknesses, professional and personal skills of a partner implementing improvement strategies.
To carry out this project a type of descriptive quantitative research with inductive and deductive method was used, involving 41 partners results are evidence that leadership is unfavorable and favorable variable integrity.
This research was developed in order to provide guidance to evaluate the performance of the sales staff know the job profile and skills that keeps the contributo
Genetic features of platinum-resistant ovarian cancer patients
No full textDubinina V. G., Rybin A. I., Mihailenko O. V., Kuznetsova O. V. Genetic features of platinum-resistant ovarian cancer patients. Journal of Health Sciences. 2014;4(14):50-56. ISSN 1429-9623 / 2300-665X.
http://journal.rsw.edu.pl/index.php/JHS/article/view/2014%3B4%2814%29%3A50-56
http://ojs.ukw.edu.pl/index.php/johs/article/view/2014%3B4%2814%29%3A50-56
https://pbn.nauka.gov.pl/works/510233
DOI: 10.5281/zenodo.13271
http://dx.doi.org/10.5281/zenodo.13271
The journal has had 5 points in Ministry of Science and Higher Education of Poland parametric evaluation. Part B item 1107. (17.12.2013).
© The Author (s) 2014;
This article is published with open access at Licensee Open Journal Systems of Radom University in Radom, Poland
Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium,
provided the original author(s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License
(http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited.
This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercial
use, distribution and reproduction in any medium, provided the work is properly cited.
Conflict of interest: None declared. Received: 15.11.2014. Revised 05.12.2014. Accepted: 08.12.2014.
Genetic features of platinum-resistant ovarian cancer patients
V. G. Dubinina, A. I. Rybin, O. V. Mihailenko, O. V. Kuznetsova
Odessa National Medical University
Abstract
The authors try to decide a problem of ovarian cancer resistance to platinum drugs by the way of correlation finding between platinum-resistance of tumor and presence of gene mutations in the patient. It was shown a variety of options for BRCA gene mutations in patients with ovarian cancer: BRCA 1 (185delAG) - 64,2%, BRCA 1 (5382 insC) - 55,7%, and BRCA 2 (6174delT) - 53,8%. Authors discovered a significant positive correlation between carriage of mutations in the BRCA genes 1/2 and the sensitivity of malignant ovarian tumors to chemotherapy with platinum. Mutations in these genes occurred significantly more often in patients with platinum-sensitive ovarian cancer.
Key words: ovarian cancer, treatment, resistance to platinum, mutation of genes, BRCA 1, BRCA 2.Dubinina V. G., Rybin A. I., Mihailenko O. V., Kuznetsova O. V. Genetic features of platinum-resistant ovarian cancer patients. Journal of Health Sciences. 2014;4(14):50-56. ISSN 1429-9623 / 2300-665X.
http://journal.rsw.edu.pl/index.php/JHS/article/view/2014%3B4%2814%29%3A50-56
http://ojs.ukw.edu.pl/index.php/johs/article/view/2014%3B4%2814%29%3A50-56
https://pbn.nauka.gov.pl/works/510233
DOI: 10.5281/zenodo.13271
http://dx.doi.org/10.5281/zenodo.1327
Calculating multivariate ruin probabilities via Gaver–Stehfest inversion technique.
No full textMultivariate characteristics of risk processes are of high interest to academic actuaries. In such models, the probability of ruin is obtained not only by considering initial reserves u but also the severity of ruin y and the surplus before ruin x. This ruin probability can be expressed using an integral equation that can be efficiently solved using the Gaver–Stehfest method of inverting Laplace transforms. This approach can be considered to be an alternative to recursive methods previously used in actuarial literatureMultivariate ultimate ruin probability; Laplace transform; Integral equations; Numerical methods;
ESTUDIO DE LAS DIMENSIONES QUE FAVORECEN U OBSTACULIZAN EL DESEMPEÑO LABORAL EN EL PERSONAL DEL DEPARTAMENTO DE VENTAS DE LA COMPAÑÍA IVAN BOHMAN C.A. EN EL AÑO 2015
No full textPDFEl presente trabajo fue realizado en el departamento de ventas de la empresa IVAN BOHMAN C.A. comercializadora de productos en la ciudad de Guayaquil el estudio implica un proceso de clasificación, tabulación, análisis e interpretación de datos que nos da a conocer los resultados positivos y/o negativos mediante los instrumentos de encuesta de evaluación de desempeño y una entrevista estructurada.
Estos instrumentos nos ayudan a detectar las variables de liderazgo personal, comunicación, habilidad analítica, trabajo en equipo, integridad, orientación a resultados identificando estilos personales, rendimiento, debilidades, habilidades profesionales y personales de un colaborador implementando estrategias de mejoramiento.
Para poder llevar a cabo este proyecto se utilizó un tipo de investigación descriptiva, cuantitativa con método inductivo y deductivo, participaron 41 colaboradores los resultados se evidencia que es desfavorable el liderazgo y la variable favorable es la integridad.
El presente trabajo de investigación se elaboró con la finalidad que sirva de guía para evaluar el desempeño de los colaboradores del área de ventas conociendo el perfil laboral, habilidades y destrezas que mantiene el colaboradorThis work was done in the sales department of the company IVAN BOHMAN CA marketer of products Guayaquil study involves a process of classification, tabulation, analysis and interpretation of data that reveals the positive and / or negative results by the survey instruments and performance evaluation a structured interview.
These tools help us to detect variables of personal leadership, communication, analytical skills, teamwork, and integrity, results orientation identifying personal style, performance, and weaknesses, professional and personal skills of a partner implementing improvement strategies.
To carry out this project a type of descriptive quantitative research with inductive and deductive method was used, involving 41 partners results are evidence that leadership is unfavorable and favorable variable integrity.
This research was developed in order to provide guidance to evaluate the performance of the sales staff know the job profile and skills that keeps the contributo
The Erd\H{o}s-Gy\'arf\'as function -- so Gy\'arf\'as was right
No full textA -coloring of is an edge-coloring of where every
-clique spans at least five colors. We show that there exist -colorings of using colors. This settles a
disagreement between Erd\H{o}s and Gy\'arf\'as reported in their 1997 paper.
Our construction uses a randomized process which we analyze using the so-called
differential equation method to establish dynamic concentration. In particular,
our coloring process uses random triangle removal, a process first introduced
by Bollob\'as and Erd\H{o}s, and analyzed by Bohman, Frieze and Lubetzky
Etiskt ledarskap i säljande organisationer
No full textTitel: Etiskt ledarskap i säljande organisationer Nivå: C-uppsats i ämnet företagsekonomi. Författare: Moa Bohman och Evelina Nilsson. Handledare: Pär Vilhelmson, Kristina Mickelsson och Maria Fregidou-Malama. Datum: Augusti 2015. Syfte: Denna studies syfte är att bidra till ökad förståelse för hur chefer i säljande organisationer utövar etiskt ledarskap, sett ur chefers perspektiv. Forskningsfrågorna som formulerades efter en genomgång av den befintliga teorin är: 1. Påverkar chefer sina anställdas beteende genom att vara en förebild? 2. Påverkar chefer sina anställdas beteende genom förstärkning av etiska normer? 3. Påverkar chefer sina anställdas beteende genom kommunikation om etik? 4. Påverkar chefer sina anställdas beteende genom förstärkning och kommunikation om etiska riktlinjer? 5. Påverkar chefer sina anställdas beteende på något annat sätt? Metod: En fältstudie i form av kvalitativa intervjuer genomfördes för att samla in information. Respondenter var chefer i säljande organisationer. Efter transkribering av intervjuerna analyserades informationen genom uppdelning och jämförelser. Resultat & slutsats: Denna studie visar att de intervjuade cheferna utövar ett etiskt ledarskap genom att vara förebilder, genom att kommunicera om etik, genom att belöna i form av beröm och positiv feedback samt genom att förstärka det etiska klimatet med hjälp av kommunikation om etiska riktlinjer. Studien kan varken bekräfta eller dementera huruvida förstärkning av etiska normer genom bestraffningar sker. Förslag till fortsatt forskning: I denna studie finns det begränsningar i urvalets storlek, dess geografiska utbredning samt valet av perspektiv. Av den anledningen rekommenderas att undersökningen upprepas med antingen ett större urval eller på en annan geografisk plats än Gävle eller ur andra perspektiv. Framtida forskning bör även beröra huruvida bestraffningar används eller inte, och även varför. Relationen mellan de påverkansmetoder som tas upp i studien bör också undersökas. De nya påverkansmetoder som inte omfattades av den teoretiska modellen men som nämndes i intervjuerna bör också vara föremål för framtida forskning. Uppsatsens bidrag: Denna uppsats bidrar med insikter för den företagsekonomiska teorin. Då studiens resultat i vissa avseenden inte överensstämmer med den befintliga litteraturen har detta lett till konstruerandet av en ny teoretisk modell. Denna modell ger underlag för framtida forskning då dessa differenser behöver undersökas i en större omfattning. Studien bidrar även med ökad förståelse för hur chefer utövar etiskt ledarskap, vilket har potential att leda till ökad kunskap hos dagens aktiva chefer. Chefernas etiska ledarskap kan utvecklas och förbättras genom reflektion över sina egna tillvägagångssätt och hur dessa skiljer sig, eller överensstämmer, med de metoder som tas upp i denna studie. Nyckelord: Etiskt ledarskap, etiskt beteende, etiskt klimat, säljorganisationer.Title: Ethical leadership in selling organizations. Level: Final assignment for Bachelor Degree in Business Administration Author: Moa Bohman and Evelina Nilsson Supervisor: Pär Vilhelmson, Kristina Mickelsson and Maria Fregidou-Malama. Date: August 2015. Aim: The purpose of this study is to contribute to greater understanding for how managers in selling organizations practice ethical leadership, viewed from a manager perspective. Following research questions were formulated after a review of the existing literature: 1. Do managers influence the behavior of their followers by being role models? 2. Do managers influence the behavior of their followers by reinforcement of ethical standards? 3. Do managers influence the behavior of their followers by communication about ethics? 4. Do managers influence the behavior of their followers by reinforcement and communication about ethical codes? 5. Do managers influence the behaviour of their followers in some other way? Method: A field study in terms of qualitative interviews was conducted to gather information. The interview subjects were managers in selling organizations. After transcribing the interviews the information was analyzed by selection and comparison. Result & Conclusions: This study shows that the interviewed managers practice ethical leadership by being role models, by communicating about ethics, by rewarding in terms of credit and positive feedback as well as by reinforcing the ethical climate through communication about ethical codes. The study can neither confirm nor deny whether reinforcing ethical norms through punishment occurs. Suggestions for future research: In this study, there are limitations in sample size, geographic range and the choice of perspective. For that reason a repeated study with larger selection, participants from another geographical area or the use of a different perspective (for example the follower) is recommended. Future research should also address whether punishments are used or not, and also why that is. The relationship between the suggested methods should also be examined. The new methods, which were not covered by the theoretical model but were mentioned in the interviews, should also be subjects for future research. Contribution of the thesis: This study contributes with understandings for the business administration theory. Since the study results in some ways differed from the current literature a new theoretical model was created. This model provides a foundation for future research as these differences should be further investigated. The study also contributes with an increased understanding for how managers practice ethical leadership, which has the potential to enhance the knowledge of today’s active managers. The ethical leadership that the managers practice may evolve and improve by reflection about their own methods and how these differ, or correspond, to the methods presented in this study. Key words: Ethical leadership, ethical behavior, ethical climate, selling organizations
O dilema em torno da Esfera Pública: a centralidade do conceito dentro da teoria deliberativa da democracia e suas reformulações a partir da proposta habermasiana
No full textO presente texto discute a centralidade do conceito de esfera pública dentro da teoria deliberativa da democracia. Partindo da formulação habermasiana, destacamos um dilema construído em torno da questão da institucionalização ou não da esfera pública. Nesse sentido, defendemos a tese de uma “disputa” interna entre os teóricos da democracia deliberativa ao se posicionarem diante deste problema. Ressaltamos, ainda, as críticas de Cohen e Bohman ao modelo habermasiano, bem como a questão referente às condições de interação na esfera pública
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