Submitted by Verena Bastos (verena@uefs.br) on 2015-07-31T13:39:35Z No. of bitstreams: 1 DISSERTACAO DE BIANKA 2015.pdf: 1088519 bytes, checksum: 3efca07e3a24a9e6cadd7b95dbe70562 (MD5) / Made available in DSpace on 2015-07-31T13:39:35Z (GMT). No. of bitstreams: 1 DISSERTACAO DE BIANKA 2015.pdf: 1088519 bytes, checksum: 3efca07e3a24a9e6cadd7b95dbe70562 (MD5) Previous issue date: 2014-03-21 / Objective: To assess factors related to the occurrence of gender violence in a population of northeastern Bahia in 2007 and identify risk behaviors in women who have witnessed family violence during their childhood and were victims of violence in adulthood. Methods: This was a cross-sectional study conducted with 4170 individuals, of both sexes, aged 15 years and living in the city of Feira de Santana , Bahia. A probabilistic sample of clusters derived from census tracts was used. Data were collected during home visits with use of household and individual questionnaire record. Bivariate and the Chi square test analyzes were performed considering IC95 % and p ? 0.05 for statistically significant association. To verify the factors associated with violence , we used a hierarchical logistic regression analysis. Results: The prevalence of physical and / or emotional violence was 18,63%. Regarding the history of violence in childhood prevalence was equal to 12,14%. Women had a higher prevalence (19,7%) than men (16,5%) with 1,31 times higher prevalence of victimization. It was observed that women who have never been to school (15,08%), non-white (12,61%) and had an income of up to 1 minimum wage (14.17%) had a higher incidence of physical violence in childhood. The women drinkers had 1,43 times higher prevalence of experiencing violence in childhood and, in relation to smoking, this prevalence increased to 1,56. Adjusted by hierarchical logistic regression analysis showed a positive association between women suffer physical and / or emotional violence with household type (RP = 1,28; IC95%: 1,10; 1,54), type of building (RP = 1,66; IC95%: 1,14; 2,41), smoking (RP = 1,36; IC95%: 1,10; 1,70) and violence in childhood (RP = 2,13; IC95%: 1,79; 2,53). Conclusions: Gender violence is a complex problem with social roots and that deserves to be addressed as a public health problem . Thus , it is urgent policies to combat poverty , interpersonal conflicts, especially those from the interior of the family system , substance use , particularly alcohol measures as well as preparation in the care of victims of violence and the deployment of a service to protect women victimized because many remain silent for fear of reprisals from their attackers. / Objetivo: Analisar os fatores relacionados ? ocorr?ncia da viol?ncia de g?nero em uma popula??o do nordeste da Bahia no ano de 2007 e identificar os comportamentos de risco de mulheres que presenciaram viol?ncia na fam?lia durante sua inf?ncia e foram v?timas de viol?ncia na vida adulta. M?todos: Trata-se de um estudo de corte transversal realizado com 4170 indiv?duos, de ambos os sexos, com idade acima de 15 anos e residentes no munic?pio de Feira de Santana-BA. Foi utilizada uma amostra probabil?stica de conglomerados derivados de setores censit?rios. Os dados foram coletados em visitas domiciliares com uso de ficha domiciliar e question?rio individual. Foram realizadas an?lises bivariadas e Teste do Qui Quadrado de Pearson, considerando IC95% e p ? 0,05 para associa??o estatisticamente significante. Para verificar os fatores associados ? viol?ncia, empregou-se a an?lise de regress?o log?stica hierarquizada. Resultados: A preval?ncia de viol?ncia f?sica e/ou emocional foi de 18,63%. Em rela??o ? hist?ria de viol?ncia na inf?ncia a preval?ncia foi igual a 12,14%. As mulheres apresentaram preval?ncia superior (19,7%) aos homens (16,5%) com preval?ncia 1,31 vezes maior de vitimiza??o. Foi poss?vel observar que mulheres que nunca foram ? escola (15,08%), n?o brancas (12,61%) e que tinham renda de at? 1 sal?rio m?nimo (14,17%) apresentaram maior ocorr?ncia de viol?ncia f?sica na inf?ncia. As mulheres etilistas tiveram preval?ncia 1,43 vezes maior de ter sofrido viol?ncia na inf?ncia e, em rela??o ao h?bito de fumar, esta preval?ncia aumentou para 1,56. A an?lise ajustada por regress?o log?stica hierarquizada mostrou uma associa??o positiva entre a mulher sofrer viol?ncia f?sica e/ou emocional com tipo de domic?lio (RP = 1,28; IC95%: 1,10; 1,54), tipo de edifica??o (RP = 1,66; IC95%: 1,14; 2,41), tabagismo (RP = 1,36; IC95%: 1,10; 1,70) e viol?ncia na inf?ncia (RP = 2,13; IC95%: 1,79; 2,53). Conclus?es: A viol?ncia de g?nero ? um problema complexo com ra?zes sociais e que merece ser abordada como um problema de sa?de p?blica. Assim, urge medidas pol?ticas para o combate da pobreza, conflitos interpessoais, sobretudo os oriundos do interior do sistema familiar, ao consumo de subst?ncias, principalmente o ?lcool, bem como o preparo no atendimento das v?timas de viol?ncia e a implanta??o de um servi?o de prote??o ?s mulheres vitimizadas, pois muitas se calam por medo de sofrer repres?lias por parte de seus agressores.

Secondhand smoke (SHS) is a harmful mixture of over 4000 chemicals released from the burning of a cigarette. It has been classified as a Class A carcinogen and exposure to SHS has been proven to be related to negative health effects in humans. Children exposed to SHS are more susceptible to negative health effects because they have higher breathing rates and immature, developing bodies. SHS has been associated with many childhood diseases, including asthma, inner ear infections, and pneumonia. SHS exposure in confined areas, such as inside a motor vehicle, is of concern due to the increased toxicity level of the SHS. The purpose of this cross-sectional study was to assess the factors associated with those who smoke in a car containing children and to determine if the estimated prevalence of those who smoke in a vehicle with children has decreased since legislation was passed in Farmington Maine in 2008. Observations were taken at different times of the day and in different seasons. Each observation period consisted of a pair of researchers whom stood at the edge of the roadside, at 7 observations sites located throughout Farmington, Maine. When a vehicle passed, the researchers recorded the child passenger(s) estimated age(s), and the adult passenger(s) estimated age(s), gender, and smoking status. Site locations were chosen based upon ease of observation and neighborhood characteristics that were used as a proxy for socioeconomic status (SES) to the location. Adult data (n=3937) were used to calculate the estimated prevalence and factors of violation. Of all adult observations from 2008 to 2010, 8.26% were observed smoking in a vehicle containing a child, 63.38% of which were male. The estimated prevalence of those smoking in a vehicle containing children decreased from 13.08% (P < .0001), when the law was first enacted in the fall of 2008, to 7.40% (P < .0001) in the fall of 2010. Smoking in vehicles containing children was observed more frequently at sites that were estimated to have a lower SES near them, such as the fairgrounds [(OR=4.48, CI95 (2.49-8.09)] and at the tobacco store location [(OR=7.47, CI95 (4.29-13.01)]. In the final model, gender was found to be significantly associated with smoking in a vehicle containing a child, with males having increased odds of violation [OR=3.13, CI95 (2.44-4.01)]. However, when stratifying by gender, there were significant differences between site locations, dates, and time of the day that males or females were observed smoking. After adjusting for gender, site location, and age, adults observed in the Fall of 2008 were significantly more likely to be smoking in vehicle than those observed in the Fall of 2010 [OR=2.25, CI95 (1.64-3.09)]. The change in prevalence between dates indicates that smoking in a vehicle not only decreased over time, but also that season could have an effect on smoking in vehicle containing children behavior.

Reinforced concrete frames display nonlinear behavior both due to its composite nature and the material properties of concrete itself. The yielding of the reinforcement, the non-uniform distribution of aggregates and the development of cracks under loading are the main reasons of nonlinearity. The stiffness of a frame element depends on the combination of the modulus of elasticity and the geometric properties of its section - area and the moment of inertia. In practice, the elastic modulus is assumed to be constant throughout the element and the sectional properties are assumed to remain constant under loading. In this study, it is assumed that the material elasticity depends on the reinforcement ratio and its distribution over the section. Also, the cracks developing in the frame element reduces the sectional properties. In case of linear analysis, the material and sectional parameters are assumed to be constant. In practice, the modulus of elasticity E is a predefined value based on previous experiments and the moment of inertia I is assumed to be constant throughout the analysis. However, in this study, E and I are assumed to be combined. In other words, they cannot be separated from each other throughout the analysis. These two parameters are handled as a single parameter as EI . This parameter is controlled by the reinforcement ratio and its configuration, sectional properties and deformation of the member. Two types of analysis, namely a sectional and a finite element analyses, are used in this study. From the sectional analysis, the parameter EI is calculated based on the sectional geometry, material properties and the axial load applied on the section. The parameter EI is then used in the finite element analysis to calculate the sectional forces and the nodal displacements. For the nonlinear analysis, the Newton-Raphson iterative approach is followed until convergence is obtained.

La mayoría de las estructuras de hormigón armado se someten a solicitaciones combinadas de esfuerzos axiles, flexión, cortante y torsión. La fisuración del hormigón, plastificación de las armaduras y otros efectos no-lineales hacen que las secciones transversales de estos elementos presenten un comportamiento anisótropo que deriva en el acoplamiento de los esfuerzos normales y tangenciales. Es decir, esfuerzos normales o momentos flectores pueden producir deformaciones de corte y vice versa. Aunque en algunas ocaciones, esta interacción es considerada de forma simplificada en el dimensionamiento de estructuras, hasta el momento no se ha realizado un análisis profundo de los efectos acoplados en secciones de forma arbitraria bajo cargas 3D generales utilizando modelos de fibras.El objetivo principal de esta tesis es generalizar el análisis de secciones de hormigón armado mediante fibras, de forma que se pueda reproducir la res-puesta no-lineal acoplada frente a esfuerzos normales y tangenciales bajo solicitaciones tridimensionales generales. De igual forma, se pretende obtener, para los esfuerzos cortantes y torsión, la misma capacidad de representación de geometrías y combinación de materiales que ofrecen los modelos de fibras para esfuerzos de flexo-compresión.La primera problemática estriba en representar adecuadamente la cinemática de la sección transversal. Con la excepción de las deformaciones normales contenidas en el plano de la sección, no existe una teoría cinemática que a priori pueda dar la distribución del resto de deformaciones o tensiones en la sección, sin dejar de satisfacer las condiciones de equilibrio interno o continuidad entre las fibras que componen la misma.Por otra parte, para materiales anisótropos, como el hormigón fisurado, en general todos los esfuerzos internos pueden estar acoplados. Además, es preciso considerar la distorsión de la sección transversal para satisfacer el equilibrio entre fibras.El problema se aborda de forma general, considerando una sección de forma y materiales cualesquiera. Se parte del problema diferencial de equilibrio de un sólido con el que se ha podido deducir un sistema de equilibrio entre fibras (equilibrio a nivel sección). Se puede demostrar que éste es complementario al problema estándar de vigas. El sistema complementario permite recuperar información tridimensional que normalmente se pierde al resolver un problema de vigas.Posteriormente, se propone una solución interna del problema complementario, en la que el alabeo y la distorsión de la sección quedan expresados como una función de las deformaciones generalizadas de una viga: deformaciones axil y cortantes, curvaturas de flexión y torsión. No son necesarios grados de libertad adicionales a nivel estructura ni hipótesis a-priori sobre la forma de los campos de deformación o tensión interna.A partir de la formulación teórica, se desarrolla un modelo de elementos finitos plano de la sección transversal. El modelo está preparado para servir como respuesta constitutiva de cualquier tipo de elemento viga en sus puntos de integración. %Se evita así la necesidad de realizar un modelo de elementos sólidos de toda la barra para estudiar la respuesta frente a una combinación general de esfuerzos normales y tangenciales.Se implementan una serie de modelos constitutivos para distintos materiales. En particular, se implementa un modelo constitutivo triaxial para hormigón fisurado, considerando la anisotropía inducida por la fisuración e incluyendo la superficie de rotura según un criterio multiaxial.La formulación seccional es validada mediante varios casos de estudio teóricos y experimentales. La respuesta no-lineal acoplada bajo diversas combinaciones de esfuerzos normales y tangenciales es reproducida con precisión, lo cual queda patente tanto en las curvas esfuerzo-deformación obtenidas como en las matrices de rigidez seccionales.Finalmente, se recopilan las conclusiones derivadas de la presente investigación y seofren recomendaciones para futuros trabajos. / Most RC structures are subjected to combined normal and tangential forces, such as bending, axial load, shear and torsion. Concrete cracking, steel yielding and other material nonlinearities produce an anisotropic sectional response that results in a coupling between the effects of normal and shear forces, i.e. normal force or bending moments may produce shear strains and vice versa. Although this interaction is sometimes taken into account, in a simplified manner, in the design of RC structures, a deep analysis of the coupling effects of RC sections using fiber models has not yet been made for arbitrary shape sections under general 3D loading.The main objective of this thesis is to generalize the fiber-like sectional analysis of reinforced concrete elements, to make it capable of considering the coupled non-linear response under tangential and normal internal forces, from a general 3D loading.Similarly, it is desired to obtain, for torque and shear forces, the same capacity and versatility in reproducing complex geometry and materials combination that fiber-like sectional representations offers for bending and stretching.The first problematic lies in finding a proper representation of the section's kinematics under such general loading. Except for in-plane normal strains, there is no single kinematical theory capable of a-priori representing the correct distribution of the others strains or stresses satisfying, at the same time, inter-fiber equilibrium and continuity. On the other hand, for rather anisotropic materials, such as cracked concrete, all internal forces are, in general, coupled. It is also required that distortion is allowed for the section's kinematics in order to guarantee satisfaction of internal equilibrium.The problem is dealt in a general form considering arbitrary shaped sections and any material behaviour. Starting from the differential equilibrium of a solid, an inter-fiber equilibrium system (equilibrium at the sectional level) was deduced. This system, which is complementary to the standard equilibrium problem of a beam-column, allows to recuperate information of the three-dimensional problem that is generally lost when solving a beam problem.Further, a solution of the equilibrium at the sectional level is proposed in which the section's warping and distortion are posed as a function of the generalized beam-column strains (axial and shear strains, bending and torsion curvatures). No additional degrees of freedom are required at the structural level nor a-priori hypotheses on the distribution of the internal strains or stresses.After the theoretical formulation, a planar finite element model for cross-sectional analysis is developed. The model can be used as a constitutive law for general beam column elements at their integration points.A series of constitutive models have been implemented for several materials. In particular, a triaxial constitutive model for cracked concrete is implemented considering crackinduced anisotropy and a multiaxial failure criterion.The sectional formulation is validated by means of various theoretical and experimental case studies. Non-linear coupled response under normal and tangential internal forces is reproduced with accuracy, as can be seen both in the predicted internal force-strain curves and in the sectional stiffness matrixes.Finally, the conclusions drawn from the current research are summarized andrecomendations for future works are given.

This thesis is based on cross-sectional data analyses by using Ordinary Least Squares (OLS) Method in order to determine the main drivers of the environmental performance and specifically the effects of environmental audits conducted by Supreme Audit Institutions (SAIs) on sustainable development. Two general models are employed throughout the study that have the Environmental Performance Index (EPI) as dependent variable and various sub-models for different income groups are produced to observe the individual and interactive effects of explanatory variables. First model includes 150 countries regressing their EPI scores on income, population, literacy rate and indicators of the strength of institutional structure such as corruption perceptions index or government effectiveness score. Then, second model which comprises 52 countries introduces the number of environmental audit reports as a new explanatory variable. Principal Component Analysis (PCA) is also applied to highly correlated variables and the models are reestimated. The results indicate that well functioning environmental management systems and resulting positive effects on the environmental performance can only be attained through strengthened governmental institutions with high transparency and accountability as well as rigid implementation of the related regulations. More specifically, environmental audit reports generated by SAIs are of vital importance for especially improving the environmental management systems of the developing countries.

The scope of this thesis is to process and analyze statistically Magnetic Resonance Images (MR-T1) from Parkinson’s disease patients in order to detect brain areas that exhibit brain change which is caused by the disease. Parkinson’s disease is an idiopathic disease which means that its cause is yet unknown. It is a chronic neurodegenerative disorder of the central nervous system which causes the progressive death of specific brain neurons that leads to motor impairments (tremor, bradykinesia, muscle rigidity) and non motor ones (cognitive, sleep, sensation disturbances). Magnetic Resonance Images (T1-weighted) were acquired from both Parkinson’s patients and healthy subjects (Controls) at intervals of 0 and 5 years. The data have undergone longitudinal (two-time-point), cross sectional (single-time-point) and statistical analysis with the use of FSL software library. Evidence of atrophy among Parkinson’s patients aroused, in brain areas near the ventricles and the middle temporal gyrus, after statistical analysis / Ο σκοπός αυτής της εργασίας είναι η επεξεργασία και στατιστική ανάλυση μαγνητηκών τομογραφιών (MR-T1) από ασθενείς με Πάρκινσον για την ανίχνευση περιοχών του εγκεφάλου που παρουσιάζουν μεταβολές που οφείλονται στην ασθένεια. Η ασθένεια Πάρκινσον είναι ιδιοπαθής, δηλαδή ασθένεια της οποίας η αιτία παραμένει ακόμη άγνωστη. Είναι μια χρόνια δυσλειτουργία λόγω εκφυλισμού των νευρώνων του κεντρικού νευρικού συστήματος η οποία προκαλεί τη σταδιακή νεκρωση συγκεκριμένης ομάδας εγκεφαλικών νευρώνων. Αυτή η νέκρωση οδηγεί σε κινητικές δυσλειτουργίες (τρέμουλο, βραδυκινησία, και μυϊκή δυσκαμψία και σε μή κινητικές όπως γνωστικές, διαταραχής ύπνου,διαταραχές αφής κ.α. Μαγνητικές τομογραφίες (τύπου Τ1) ασθενών και υγιών ελήφθησαν σε διαστήματα 0 και 5 ετών. Τα δεδομένα αναλύθηκαν με δυο μεθόδους (longitudinal και cross-sectional) και εν συνεχεία έγινε στατιστική επεξεργασία των αποτελεσμάτων. Έγινε χρήση της βιβλιοθήκης FSL Μετά από στατιστική ανάλυση προέκυψαν ενδείξεις ατροφίας στους ασθενείς με Πάρκινσον σε περιοχές του εγεκφάλου κοντά στις εγκεφαλικές κοιλίες (ventricles) και στη μέσο-κροταφική έλικα (middle temporal gyrus).

An asymptotically-exact methodology is presented for obtaining the cross-sectional stiffness matrix of a pre-twisted, moderately-thick beam having rectangular cross sections and made of transversely isotropic material. The beam is modelled with-out assumptions from 3-D elasticity. The strain energy of the beam is computed making use of the constitutive law and the kinematical relations derived with the inclusion of geometrical nonlinearities and initial twist. Large displacements and rotations are allowed, but small strain is assumed. The Variational Asymptotic Method (VAM) is used to minimize the energy functional, thereby reducing the cross section to a point on the reference line with appropriate properties, yielding a 1-D constitutive law. In this method as applied herein, the 2-D cross-sectional analysis is performed asymptotically by taking advantage of a material small parameter and two geometric small parameters. 3-D strain components are derived using kinematics and arranged as orders of the small parameters. Warping functions are obtained by the minimisation of strain energy subject to certain set of constraints that renders the 1-D strain measures well-defined. Closed-form expressions are derived for the 3-D non-linear warping and stress fields. The model is capable of predicting interlaminar and transverse shear stresses accurately up to first order.

La profession infirmière en France a vécu des changements récents en termes de recherche et de formation. Dans notre pays, la discipline infirmière est en cours d'institutionnalisation, pourtant il existe déjà des infirmières françaises mettant en ¿uvre des projets de recherche dans une relative autarcie. Dans le contexte actuel professionnel, disciplinaire et intellectuel, comment la recherche infirmière française peut-elle à la fois intégrer la sphère internationale et développer son programme singulier? Il est ambitionné de mettre en lumière ce à quoi les infirmières françaises tiennent, leurs " valeurs " scientifiques. Le programme de recherche Thot, programme séquentiel multi-méthodes, lancé en 2010, étudie le développement de la capacité de recherche infirmière en France. L'étude Thot 1 est une analyse descriptive transversale de l'activité scientifique infirmière à partir du Programme Hospitalier de Recherche Infirmière 2010 et 2011. L'étude Thot 2 est une ethnographie des pratiques de recherche infirmière mises en ¿uvre, combinées à la pratique clinique. Thot 3 est une étude phénoménographique sur les conceptions de la recherche, acquises pendant la formation, par des infirmières titulaires d'un doctorat, en France et en Suède. Les résultats des trois études ont été triangulés au regard de la définition de la science comme pratique socio-culturelle et sept valeurs sont proposées : réflexivité, formation dédiée, cohérence, diversité, confiance, transmission et transformation. Ce programme, déployé et mis en ¿uvre lors d'une des étapes charnières, contribue à l'intégration, dans le futur, des valeurs des infirmières françaises, comme des valeurs scientifiques. / Nursing research and education recently changed in France. In our country, the nursing discipline is currently transforming toward an academic institutionalisation. European development of nursing research is heterogeneous, but the paths of progress seem similar if four sequential stages. Nursing research is characterized by its diversity. However, French nurses implement research projects, in a relative seclusion. In the current professional, disciplinary and intellectual French nursing context, how can nursing research integrate both the international arena and develop its own unique programme? This thesis further aspires to highlight French nurses? scientific values and provide guidelines for nursing research and education in France. The research programme Thot, a multi-method programme, was launched in 2010 to study the development of French nursing research capacity. Thot 1 study was a descriptive cross-sectional analysis of the Hospital Nursing Research Programme 2010 and 2011 scientific activity. Thot 2 study was an ethnography of nursing research practices, combined with clinical practice. Thot 3 was a phenomenographic study of research concepts acquired during a doctoral apprenticeship in France and Sweden. Seven values were derived from the integration of the results of the three studies: reflexivity, dedicated education, coherence, diversity, confidence, transmission and transformation. We hope that this programme, deployed and implemented concurrently to one of the stage of development of nursing in France, will participate in the future integration of the values of French nurses as scientific values,

<p><br></p> <p>In my dissertation research I document information price discovery through investments in the alternate asset class of Venture Capital. The two chapters of this dissertation studies the effect of these investments in two different contexts. The first chapter analyses improvements in valuations of venture capital funds through syndication by VC funds. The second chapter documents improvements in stock prices, and valuations, of publicly traded firms through investments by institutional investors in VC funds and in public equity.</p> <p><br></p> <p>In the first chapter I examine the effect of syndication among venture capital (VC) funds on the funds' incentives to manipulate their performance measures. I show that the presence of new syndicate partners reduces misreporting by VC funds. About half of the reduction in manipulation is during the follow-on fundraising period. To identify that syndicate partners reduce performance misreporting I use: (i) a triple-difference approach around fundraising and (ii) availability-of-syndicate-partners as an instrument for the number of new syndicate partners. The implications of my findings are that LPs should better monitor VC funds with fewer new syndicate partners and regulators should consider the presence of peer-monitoring among VC funds before imposing disclosure requirements.</p> <p>  </p> <p>  Chapter two includes John J. McConnell, Timothy E. Trombley, and M. Deniz Yavuz as coauthors. In this chapter we report evidence consistent with institutional investors using industry-level information that they obtain from their investments in venture capital (VC) funds to earn excess returns in publicly-traded equities.  We use court rulings regarding the Freedom of Information Act as an exogenous shock affecting the information flow between VC firms and institutional investors to show that the excess returns are explained by information received via this channel.  Thus, institutional investors serve as conduits of information, making publicly-traded stock prices more efficient.  In the process, institutional investors earn higher returns from their VC investments than implied by the cash flows thereby received. </p>

Submitted by Jadson Francisco de Jesus SILVA (jadson@uefs.br) on 2018-07-13T22:26:25Z No. of bitstreams: 1 DISSERTA?AO FABIANA MANDELO CASAES.pdf: 2073577 bytes, checksum: 852aa3522aa12d871a39ed83930f5bb7 (MD5) / Made available in DSpace on 2018-07-13T22:26:25Z (GMT). No. of bitstreams: 1 DISSERTA?AO FABIANA MANDELO CASAES.pdf: 2073577 bytes, checksum: 852aa3522aa12d871a39ed83930f5bb7 (MD5) Previous issue date: 2017-04-07 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Objective: To identify factors associated with violence witnessed and experienced by health workers in Bahia municipalities. Method: This is an exploratory cross-sectional study, which is part of the multicentric research "Working conditions, conditions of employment and health of health workers in Bahia", carried out in the Basic Attention and Medium Complexity services in the Sanitary District of Historic Center of Salvador and in the municipalities of Feira de Santana, Santo Ant?nio de Jesus, Jequi? and Itabuna, in the years 2011 and 2012. The population of the study was constituted by 6,191 workers. In this study, the dependent variable was the violence experienced by the worker outside the workplace and the violence witnessed by health workers in their workplace. The analysis was made through Hierarchical Logistic Regression based on the conceptual hierarchical model for violence outside work and the multivariate analysis with Poisson Regression for violence witnessed in the workplace. Results: The analysis showed a positive association between age, marital status, schooling, professional category and respiratory diseases for the violence experienced by health workers outside work. The violence witnessed by health workers remains statistically associated with high school / technical education, higher education, post-graduation, threatened personal security, Cap X, health unit. Final Considerations: It has been found that in all contexts, a prevalence of violence is an important fact and that it is an observatory with caution, both on the part of the workers, with the management of public powers. The factors that contributed the most to the dissemination of problems, both in the national and international literature, and ratify the importance of this work. This study was developed with the health team because of the importance of its native role in the entire population, but it is worth mentioning an eminence of future work on the problem, which is that you know the expansion of study places, expanding to other states And Municipalities, in order to compare the reality in which health workers live, as a study population, is already an issue that involves all members of society without distinction. / Objetivo: Identificar fatores associados ? viol?ncia presenciada e vivenciada por trabalhadores da sa?de em munic?pios baianos. M?todo: Trata-se de um estudo de corte transversal, explorat?rio, integrante da pesquisa multic?ntrica ?Condi??es de trabalho, condi??es de emprego e sa?de dos trabalhadores da sa?de na Bahia?, realizado nos servi?os de Aten??o B?sica e de M?dia Complexidade no Distrito Sanit?rio do Centro Hist?rico de Salvador e nos munic?pios de Feira de Santana, Santo Ant?nio de Jesus, Jequi? e Itabuna, nos anos 2011 e 2012. A popula??o do estudo foi constitu?da por 6.191 trabalhadores. Neste estudo a vari?vel dependente foi a viol?ncia vivenciada pelo trabalhador fora do local de trabalho e a viol?ncia presenciada pelos trabalhadores de sa?de no seu local de trabalho. A an?lise foi feita atrav?s da Regress?o Log?stica Hierarquizada baseada no modelo hier?rquico conceitual, para a viol?ncia fora do trabalho e a an?lise multivariada com Regress?o de Poisson para a viol?ncia presenciada no local de trabalho. Resultados: A an?lise mostrou associa??o positiva entre faixa et?ria, situa??o conjugal, escolaridade, categoria profissional e doen?as no aparelho respirat?rio para a viol?ncia vivenciada pelos trabalhadores de sa?de fora do trabalho. A viol?ncia presenciada pelos trabalhadores de sa?de permaneceu estatisticamente associadas a escolaridade ensino m?dio/t?cnico, ensino superior, p?s-gradua??o, seguran?a pessoal amea?ada, Cap X, unidade de sa?de. Considera??es Finais: Verificou-se que, em todos os contextos, a preval?ncia da viol?ncia ? um dado importante e que deve ser observado com cautela, tanto por parte dos trabalhadores, com da gest?o e dos poderes p?blicos. Os fatores associados a viol?ncia confirmam os achados de v?rios outros estudos, tanto na literatura nacional, como internacional e ratificam a import?ncia desse trabalho, advertindo sobre a necessidade de enfrentamento desse problema. Este estudo foi realizado com trabalhadores de sa?de pela import?ncia do seu papel na assist?ncia a toda a popula??o, mas vale destacar a emin?ncia de trabalhos futuros acerca da problem?tica, tanto no que se refere a amplia??o de locais de estudo, se expandindo para outros Estados e munic?pios, afim de comparar a realidade em que vive os trabalhadores de sa?de, como a pr?pria popula??o de estudo, j? ? um tema que envolve todos os membros da sociedade, sem distin??o.