Social support is the collection of tangible and intangible experiences that surround people as they cope with daily stressors. High quality social support is important among patients with cardiovascular disease (CVD) because it has positive effects on social, psychological and physical well-being, and those with good social support cope better with the travails of CVD. Although there are many studies of social support in CVD, little work has been done on the topic of discrepancies between desired and received social support in the context of gender. The purpose of this dissertation was to determine if there are gender differences in the discrepancies between CVD patients’ desired and received social support. If gender differences exist in desired and received needs for social support, it is necessary to identify how these differences might affect rehospitalization and mortality rates. Three manuscripts are included in this dissertation: 1) a comprehensive review of the literature to examine gender differences in CVD patients’ perception of the concordance between desired and received social support and if gender differences in patients’ perception of concordance are associated with differences in health outcomes; 2) a secondary analysis of a cross-sectional observational study to determine whether there is a differential relationship between perceived social support and depression in African American and Caucasian patients with heart failure (HF), and 3) a longitudinal observational study to determine if the discrepancy between desired and received support for individuals hospitalized with an exacerbation of HF is associated all-cause event-free survival. I identified a gap in the literature regarding the differences in received and desired levels of social support between genders that warrants further investigation. In the secondary analysis, I found that race moderates the relationship between perceived social support and depressive symptoms. Higher levels of perceived social support were associated with lower levels of depressive symptoms among Caucasians who had higher levels of depression. Among African Americans, depression levels were lower and were unaffected by level of social support. In the longitudinal observational study, 157 participants identified desired and received support upon enrollment. The participants had follow-up at one- and three-month post discharge intervals to determine if they had experienced rehospitalization or mortality during the period. In unadjusted and adjusted analyses neither gender nor social support congruency score group were predictive of all-cause event-free survival. This finding belies the common belief that too much support will smother the patient, causing cardiac invalidism. Despite this, further research is needed to continue to evaluate ongoing discrepancies between genders of desired and received support and their impact on health outcomes. Further research is also needed to establish accuracy in more appropriately matching social support received with the social support desired.

I avhandlingen analyseras hur våldsutsatta kvinnors behov tolkas, omförhandlas och anpassas för att kunna hanteras inom socialtjänstens organisation. Avhandlingens övergripande frågeställningar fokuserar på insatser och behov, betydelsen av socialtjänstens organisering och betydelsen av socialarbetarnas handlingsutrymme. Avhandlingen baseras på kvalitativa analyser av statliga propositioner, intervjuer med socialarbetare och med kvinnor som varit utsatta för våld i nära relationer. Det teoretiska ramverket bygger bland annat på Frasers (1989) teoretiska perspektiv som tar sin utgångspunkt i samhällets tolkningar av människors/gruppers behov av stöd, nyinstitutionell teori och teorier om gatubyråkrater. Avhandlingen visar att socialarbetares tolkningar är centrala aspekter av förhandlingen om hur våldsutsatta kvinnors behov och rätt till stöd ska förstås. Ett viktigt resultat i avhandlingen är att stödet till våldsutsatta kvinnor blir så pass olika. Avhandlingen ger inga svar i kvantitativa termer på hur olikheten är fördelad, men den ger exempel på hur olikheten tar sig uttryck. I kommuner där specialiseringen innebär att socialarbetarna på socialkontoret i första hand utreder behov och fattar beslut om insatser, måste det också finnas adekvata insatser att besluta om. Saknas det så erbjuds inte heller något stöd. Stödet till kvinnor som utsatts för våld i nära relationer blir också olika eftersom socialarbetare ställer olika krav eller sätter upp olika trösklar för att kvinnor ska få stöd. Avhandlingen visar att både gemensam kunskap och gemensam syn på sociala problem är centralt för att samarbetet inom den specialiserade socialtjänstens ska fungera och i längden också för vilket stöd människor kommer att erbjudas. / This thesis analyses how the needs of abused women are interpreted, renegotiated and adapted for handling within the social services. The overarching research questions concern support and needs, the significance of the social services organisation, and the role of social workers’ own discretion. The material consists of qualitative analyses of government bills, and interviews with social workers as well as with female victims of domestic violence. The theoretical framework includes Fraser's (1989) perspective on society's interpretations of people/groups in need of support, neo-institutional theory and the theory of street level bureaucracy. The thesis shows that social workers’ interpretations are central for how abused women's needs and their right to support will be understood. An important result is the wide variation in the kinds of support offered, deriving from the fact that there appears to be no uniform approach across the municipal social services; social workers in the different offices set up different requirements/thresholds for women to receive support. No answers are given in quantitative terms of how this diversity is distributed, but examples are presented to illustrate the range manifested. In  municipalities where specialisation means that the social workers primarily investigate needs and make formal decisions about measures to be taken, there must also be adequate interventions in place to decide upon and distribute. The thesis shows that both mutual knowledge and mutual understanding of social problems are central for the cooperation within in the specialised social services and ultimately for what kind of support people will be offered.

The aim of our study is to examine how pedagogues deal with inclusion and exclusion in the preschools and how they work with special education to include children in need of special support. We will do this by conducting interviews with seven different pedagogues at different preschools in Stockholm city which we will compare to each other. Our study is a qualitative research and with our data collection, we have chosen to focus on data in the shape of interviews and interpretive analysis to gain a deeper understanding and knowledge about our chosen topic. We have used these following questions as the starting point of our research:1. How can pedagogues approach when working with special education in children’s groups?2. What kind of view do pedagogues have with children who are in need of special support and how can it be understood from a relational perspective?3. In what way do pedagogues deal with inclusion and exclusion in the preschool?4. Are there any differences or similarities between these preschools? And what can this be due to? We have also chosen the relational perspective as our starting point in our study. In our research this means that children can be understood in relation to the environment and to the current context. It involves an understanding of the surroundings, the environment and the context affecting the individual. This means that we should understand human actions in communications and interactions with others. The conclusion of our study shows a larger perspective with both similarities and differences in how pedagogues work with special education, their views on children in need of special support and how they deal with inclusion and exclusion inthe preschools.

Une traduction française des "Thèses sur le besoin" de Theodor W. Adorno accompagne la thèse (annexe). / La présente thèse analyse et contraste les positions de G.W.F. Hegel et de T. W. Adorno sur la nature de la pensée rationnelle et le sens de la pratique philosophique. Notre démarche consiste en une interprétation critique d’une idée que partagent Hegel et Adorno mais qu’ils développent différemment, selon laquelle la pensée rationnelle obéit à un certain besoin (Bedürfnis) qui lui est à la fois spécifique et universel. Hegel a parlé d’un « besoin de la philosophie ». L’expression est ambiguë : elle vise à décrire la nature générale de la pensée rationnelle mais aussi à exprimer la pertinence historique de la raison, c’est-à-dire sa capacité à assouvir des besoins concrets. Je démontre dans les cinq premiers chapitres que Hegel tente de réconcilier ces deux besoins en soutenant que l’identification par le concept est précisément ce qui permet d’appaiser la souffrance concrète que génère la division de l’histoire avec elle-même. La solution est en effet trouvée dans l’idée du savoir absolu, une posture de la pensée rationnelle tout aussi fondée dans la nature de la pensée elle-même que dans les aspirations de son autre, c’est-à-dire de l’histoire. Le savoir absolu est le point où chez Hegel coïncident la nature de la raison en général et la nécessité d’exprimer les besoins universels de l’histoire. Les chapitres six à neuf situent ensuite le déplacement épistémologique que propose la dialectique négative d’Adorno par rapport à cette conclusion de Hegel. Nous prenons soin de montrer qu’Adorno ne la juge pas fausse mais unilatérale. Il conçoit qu’exprimer et assouvir les souffrances historiques revient au concept mais il soutient en même temps que celui-ci échoue à cette tâche tant qu’on ne nuance pas la portée et la signification de sa « compulsion à identifier ». Nous démontrons que si cette dernière est d’après Adorno à la fois inévitable et fautive, c’est parce que le besoin qui motive la pensée rationnelle n’est pas d’abord la nécessité de concevoir l’unité dans la division mais celui de réaliser les conditions de la survie et du bonheur de l’organisme vivant qui soutient la pensée. Or pour Adorno, la société capitaliste bloque les pratiques émancipatrices qui s’attachent à combler ce besoin matériel parce qu’elle absolutise le principe d’identité. Nous soutenons que, dans ce contexte, l’approche adornienne de la philosophie comme relevant de l’essai (Essay) et développant des concepts discontinus orientés vers le non-identique n’est pas moins, mais plus rationnelle que la posture hégélienne qui considère la philosophie comme une science absolue. / This thesis analyzes and contrasts G. W. F. Hegel’s and T. W. Adorno’s positions on the nature of rationality and the task of philosophy. Its central aim is to offer a critical interpretation of a thought shared but interpreted differently by both thinkers, namely, that philosophy proceeds from a certain need (Bedürfnis) that is both specific and universal. Hegel spoke of a « need of philosophy ». The expression is ambiguous: it is meant to describe the general nature of rational thinking, but also to express how reason or philosophy can justify their historical relevance and satisfy concrete needs. I argue in chapters one to five that Hegel tries to reconcile these two needs, in order to show why identifying with concepts is the key to appeasing the concrete suffering caused by history’s own division within itself. The answer is given in absolute knowledge, grounded and justified in respect of thought itself as well as thought’s other, i.e., history. Absolute knowledge is point of equilibrium between reason in general and reason as the adequate expression of history’s universal needs. Chapters six to nine then interpret Adorno’s negative dialectics as a critical reworking of this dialectical problem of framing normativity in historical terms. Adorno agrees with Hegel that the most relevant and satisfying expression of historical suffering is conceptual, yet he also contends that the « compulsion to identity » as such fails to satisfy the need that motivates philosophical thinking. I argue that this is because striving for survival and happiness is not reducible to thought’s obsession with identity. For Adorno, happiness and “right life” are blocked in contemporary society because capitalism hypostasizes the identity principle inherent in conceptual thinking. In this context, I argue that Adorno’s view of philosophy as essay (Essay) is more, not less, rational than Hegel’s understanding of philosophy as an absolute science.

Aujourd’hui les entreprises doivent pouvoir offrir de nouveaux produits en continu prenant en considération les nouvelles technologies disponibles afin de satisfaire des clients de plus en plus exigeants et diversifiés. Il est donc primordial pour une entreprise de savoir quels sont les besoins des acteurs intéressés par son produit. L’objectif de ce travail de doctorat est de proposer une nouvelle méthode pour analyser le besoin pour aider les entreprises à mieux définir leurs nouveaux produits. La démarche proposée se décline en quatre phases : description de l’environnement et du fonctionnement des acteurs par la technique du RARe (Ressources, Activités, Résultats), détermination des besoins par la réalisation de quatre types d’opérations sur les ressources de l’acteur puis évaluation et classification des besoins selon le modèle de Kano et enfin comparaison de plusieurs concepts de produits. Pour y arriver, un travail de bibliographie sur la notion de besoin a été réalisé. Cette recherche bibliographique nous a permis également de définir le cahier des charges d’une nouvelle méthode d’analyse de besoin. Ceci a justifié le choix de la méthode RARe, basée sur l’observation des activités de l’acteur, pour comprendre et identifier les besoins. Pour les classer, nous avons utilisé le modèle de Kano, qui distingue les différents besoins existants : basiques, de performance, attractifs et neutres. Nous avons mis au point un calcul d’indicateurs à l’aide d’une formulation matricielle permettant de classifier les besoins et de comparer des concepts de produits. Cette méthode constitue donc un outil d’aide à la décision au début du processus de conception / Nowadays, companies must offer new products continuously and take into consideration new available technologies in order to satisfy more and more exigent and diversified customers. Therefore, it is essential for a company to know what are the needs of the stakeholders interested in its product. The objective of this PhD work is to propose a new method to analyze the need in order to improve the new product definition process in a firm. This tool is a part of a methodology for innovative project management and it is useful before the elaboration of the specification of the new product. The proposed method has four phases: description of the stakeholders’ environment by the RARe technique (Resources-Activities- Results), determination of needs by the realization of four types of operations on the stakeholder’s resources then evaluation and classification of needs according to the Kano model and finally comparison of several products concepts. To achieve this method, a bibliographical work on the notion of need was realized. This bibliographical research also allowed us to define the specifications of a new method for need analysis. Hence, the choice of the RARe method was justified because it is based on the observation of the stakeholders’ activities. To classify their needs, we used the model of Kano, which distinguishes various existing needs: basic, one dimensional, attractive and neutral. We worked out a calculation of indicators by means of a matrix formulation allowing to classify needs and to compare concepts of products. This method thus constitutes a decision-making tool at the beginning of the conception process

Si les propositions proprement révolutionnaires de l’apprendre comme de l’enseigner de J.-J. Rousseau au XVIIIe siècle ont pu alimenter toute la pensée de l’éducation pendant près de deux siècles, se seraient-elles effondrées au milieu du XXe siècle avec l’arrivée des Approches communicatives, Perspective actionnelle et Cadre européen commun de références pour les langues dans leur prolongement ? Ou bien, ces nouveaux modèles d’apprentissage rejouent-ils Emile ou de l’éducation ? Se pourrait-il que cette fiction nous informe du continuum et de la rupture avec la Tradition éducative occidentale depuis Platon ? car si Emile annonce l’apprenant d’aujourd’hui, ils se séparent radicalement quant à leur « destination » (Kant). Il est en effet des conditions pour que le métier d’homme, se transforme en savoir-être.De son côté, l’Essai sur l’origine des langues rousseauiste pose une question qui, même sondée par la linguistique, reste toujours en suspens. Le langage des hommes leur servirait-il à exprimer leurs besoins et leurs pensées ? Rousseau n’y croit pas, Saussure non plus, d’aucuns (Lacan pour principal) avance même que la langue sert à tout autre chose qu’à la communication, et d’autres, écrivains et poètes, lui font dire des choses insoupçonnées qu’on reconnaît cependant. Serait-elle néanmoins réductible à un savoir-faire par tout le monde ?A vouloir vite tourner les pages de l’histoire, la didactique (DLE et FLE notamment) se prive d’un illustre ancêtre qui pourtant voyait loin. Cette étude se propose d’y retourner. / If Jean-Jacques Rousseau’s radically innovative proposals for learning and teachning in tle 18th century nourished educational thought for two centuries, why did they collapse in the middle of 20th century with the development of Communicative and Action-oriented approaches, and, in their wake, the Common European Framework of References for Languages ? Or, alternatively, did these newer models of knowledge acquisition replay in some fashion or another the ideas contained in Rousseau’s Emile, or On Education ?Could it be that Rousseau’s fiction tell us about certain continuities and discontinuities in the Western intellectual tradition of educational thought since Plato ? If contemporary discussions of learning acquisition differ radically in Kantian terms of their ends, there are certain conditions necessary for vocational training to be transformed into life-skills (savoir-être).On the other hand, Rousseau’s Essay on the Origin of Languages asked a question to which contemporary linguists have been unable to give an adequate answer : does human language exists in order to express needs and thoughts ? Neither Rousseau, nor Saussure long after him, believed so. Lacan claimed that language serves another purpose besides communication. Others, writers and poets for example, regularly use language to say things otherwise unknown but recognizable nevertheless. Does this make language use’s purpose reducible to a form of expertise, or know-how (savoir-faire) ?In its rush to turn the pages of history, pedagogical approaches (notably Foreign Language Teaching and French Foreign Language programs) have deprived educational instructors of visionary aspects of Rousseau’s ideas about theses issues. This study shows their relevance to contemporary linguistic concerns.

In the theoretical part of this thesis, the theory of social policy, the social policy of the Czech Republic, the structure and importance of the Labor Office in the fight against social exclusion and the current legislation on benefits of material need and the role of social workers were examined. The practical part presented and analyzed the results of a questionnaire survey conducted among social workers of the Labor Office of the Czech Republic. The aim of the questionnaire survey was to obtain information on the state of administrative burdens, obstacles to effective work, threats at the workplace and opinions of social workers on the issue of payment of benefits of material need and their abuse. The results of the questionnaire survey are as follows: there is excessive staff turnover at the Labor Office of the Czech Republic, which does not benefit the functioning of this institution. Too much administrative burden, poor communication with other institutions or low financial rewards contribute to this issue. Social workers often face client aggression and, in their opinion, are often misused by material need.

[pt] A tese identifica uma continuidade no pensamento de Wittgenstein centrada na sua distinção entre o âmbito necessário e o âmbito contingente da linguagem, particularmente na característica impredicativa do primeiro, sobretudo evidente na sua Filosofia da Matemática, e cujas conseqüências seriam permanentemente desenvolvidas ao longo da sua obra. São apresentadas as origens da noção de impredicatividade nos sistemas de Poincaré e Russell e a importância desta noção já para o início da Filosofia de Wittgenstein é avaliada. A partir disso, as críticas de Wittgenstein à abordagem de Russell da Teoria dos Tipos são analisadas. Em seguida, discute-se a importância do tema para a mudança de concepção operada no período intermediário do pensamento de Wittgenstein e para suas posições sobre as demonstrações e a verdade matemática. O trabalho contém ainda um anexo no qual aplicamos a leitura proposta à compreensão das observações de Wittgenstein sobre o teorema da incompletude de Gödel. O principal ganho de nosso trabalho é oferecer uma opção de leitura da Filosofia de Wittgenstein que confere unidade, sistematicidade e coerência interna para suas mais estranhas e díspares posições. Além disso, na medida em que o âmbito necessário da linguagem é tomado como o âmbito responsável pela determinação do sentido lingüístico, identifica-se o caráter impredicativo da própria determinação semântica como uma característica fundamental a ser levada em conta não apenas na abordagem da Filosofia de Wittgenstein, mas também por aqueles que se preocupam com o problema geral do significado e com suas conseqüências para uma justificativa semântica do construtivismo matemático. / [en] This study identifies a line of continuity through Wittgenstein s Philosophy based on his distinction between the necessary and the contingent domains of language. This distinction is concerned with the impredicativity featured by the necessary domain. This continuity is particularly evident in Wittgenstein s Philosophy of Mathematics. My thesis claims that the consequences of this continuity in the treatment of the necessary domain of language are permanently developed throughout his work. First, I present the impredicativity notion roots in the systems of Poincaré and Russell. As of this, I evaluate also this notion importance to the beginning of Wittgenstein’s Philosophy and to his criticism about Russell’s approach to a Theory of Types. Thereafter, I discuss the impredicativy importance to the turn of Wittgenstein’s thought in its intermediary period as well as to his positions about the mathematical truth and demonstrations. This study contains also an appendix in which I apply the proposed interpretation to the comprehension of Wittgenstein’s remarks on Gödel incompleteness theorem. The thesis main contribution is to offer an alternative interpretation of Wittgenstein s Philosophy conveying unity, systematization and an internal coherence to his most awkward and strangest positions. Moreover, since it is assumed that the necessary field of language is responsible for the linguistic meaning determination, the impredicative feature in the semantic determination is highlighted. As a result, this feature must be assumed not only as an approach to Wittgenstein s Philosophy, but also by everyone that is concerned with the general problem of meaning and with its consequences to a semantic justification to mathematical constructivism.

O Índice Dental Estético (DAI) tem sido amplamente usado em estudos envolvendo crianças e adolescentes, mas raramente usado em estudos com adultos. O propósito do presente estudo transversal foi avaliar a confiabilidade do DAI em uma amostra com 120 pacientes adultos, incluindo 46 do sexo masculino (38,3%) e 74 do sexo feminino (61,7%), entre 19 e 78 anos de idade (média de 49,2). Quase todos os pacientes apresentaram-se com muitas perdas dentárias e sem tratamento ortodôntico prévio. A prevalência e a severidade da má oclusão, a necessidade de tratamento ortodôntico, a autopercepção do paciente em relação à necessidade deste tipo de tratamento e a indicação, pelo cirurgião-dentista, foram avaliadas. Além disso, as opiniões subjetivas de 33 ortodontistas em 32 pacientes, por meio de fotografias intra e extrabucais e modelos de estudo foram também analisadas. Teste estatístico Kappa foi usado para avaliar o DAI e as opiniões dos profissionais. Testes qui-quadrado e de Fischer foram usados para verificar a correlação entre sexo, autopercepção e indicação do cirurgião-dentista e o escore do DAI. O teste t-student foi usado para investigar a correlação entre a idade e a necessidade de tratamento ortodôntico. A média do escore DAI foi de 38,5. Quase metade da amostra apresentou má oclusão severa ou muito severa, a qual sugeriu grande necessidade de tratamento ortodôntico. A confiabilidade intra e interexaminador do escore DAI e dos componentes foi muito alta (k>0,9). Inconsistências foram observadas na avaliação dos especialistas (k<0,4). Não houve diferenças estatisticamente significantes (P>0.05) nos escores do DAI entre sexo, idade, autopercepção da necessidade de tratamento, entretanto diferenças significantes foram encontradas em relação às indicações pelo cirurgião-dentista. Os resultados do presente estudo sugerem que a população de adultos com perdas dentárias tem elevada severidade da má oclusão e alta necessidade de tratamento ortodôntico. / Dental Aesthetic Index (DAI) has been broadly used in studies comprising children and adolescent patients but rarely used in adult studies. The aim of the present cross-sectional study was to evaluate the reliability of the DAI index in a sample of 120 adult patients, including 46 male (38.3%) and 74 female (61.7%), aged 19-78 years (mean 49.2). Several patients presented extensive dental missing and no orthodontic treatment. Prevalence, severity of malocclusion, orthodontic treatment need, self-perceived and dentist referral, were assessed. Further, subjective opinions of 33 orthodontists about 32 patients, based upon intra- and extra-oral photographs and study models were evaluated. Kappa statistics was used to assess the DAI and professional opinions. Chi-square test and Fischer test were used to test the correlation between DAI score and sex, self-perceived and dentist referral. Student ttest was used to test the correlation between age and orthodontic treatment need. The mean DAI score was 38.5. Almost half of the sample presented severe or very severe malocclusion, which suggests a substantial treatment need. Intra-rater and inter-rater reliability for DAI score and components was very high (k>0.9). Inconsistencies were observed in the professional evaluation (k<0.4). There were no statistically significant differences (P>0.05) in DAI scores between sex, age, selfperceived need, but significant differences were found between dentist referrals. The findings in the present study suggest that adult dental missing population have high severe malocclusion and high orthodontic treatment need for treatment.

Introdução: A privação do sono noturno decorrente da atuação dos profissionais de enfermagem em plantões noturnos pode levar a queixas de fadiga e a dificuldade de recuperação após trabalho. No entanto, a permissão para dormir durante a jornada noturna, tem sido comum entre as equipes de enfermagem. Objetivo: Verificar se a ocorrência dos cochilos no trabalho, bem como a sua duração, eficiência, latência, alocação e qualidade subjetiva, estão associadas à necessidade de recuperação após o trabalho e à percepção de fadiga entre profissionais de enfermagem de plantões noturnos. Métodos: Esse estudo transversal foi realizado em um hospital público da cidade de São Paulo, onde o cochilo durante o trabalho noturno é permitido. Profissionais de enfermagem do sexo feminino que trabalhavam há mais de um ano em plantões noturnos (19:00h-07:00h) e não referiram queixas em relação ao sono responderam o questionário (n=49) com dados sociodemográficos, informações sobre o trabalho (profissional e doméstico) e sintomas de saúde (percepção da fadiga, com escore que variava de 30 a 150 pontos, e necessidade de recuperação após o trabalho, com escore de 0 a 100 pontos). Elas também utilizaram o actímetro e preencheram o diário de atividades por até 10 dias consecutivos, para avaliação do ciclo vigília-sono. Resultados: A maioria das participantes (87%) apresentou episódios de sono no trabalho em todas as noites trabalhadas. A duração média do sono noturno no trabalho foi de 136 minutos (dp=39,8 minutos). A maior duração do sono noturno no trabalho foi encontrada entre as trabalhadoras que cochilaram na primeira metade da noite (00:00h-03:00h), quando comparadas àquelas que cochilaram entre 03:00h-06:00h. A qualidade subjetiva do sono noturno durante o trabalho foi significativamente inferior à qualidade do sono noturno em casa, nos 27 dias de folga. Já a latência do sono noturno no trabalho não apresentou duração média significantemente distinta quando comparada aos demais episódios de sono. A eficiência do sono noturno no trabalho foi semelhante à do sono noturno no dia de folga, porém superior quando comparada à eficiência do sono diurno. A maior duração do sono noturno no trabalho esteve associada às longas horas de trabalho doméstico e à maior sobrecarga doméstica. A média da necessidade de recuperação após o trabalho e da percepção de fadiga foi de 43,6 pontos e 63,5 pontos, respectivamente. As trabalhadoras mais jovens, aquelas que realizavam menor jornada de trabalho doméstico e as enfermeiras referiram maior percepção de fadiga. A ocorrência dos cochilos no trabalho, bem como a sua duração, latência, alocação e qualidade não foram associadas à necessidade de recuperação e à fadiga. No entanto, observou-se que entre os participantes que trabalhavam 6 ou mais noites/quinzena, houve maior eficiência do sono noturno no trabalho entre os mais fatigados e com maior necessidade de recuperação. Conclusões: Embora as diferentes durações do cochilo noturno no trabalho não tenham se mostrado associadas à fadiga e à necessidade de recuperação, sua ocorrência se mostrou benéfica para as participantes do presente estudo no que tange à eficiência do sono e às demandas da vida social. / Introduction: Sleep deprivation due to night work among nursing professionals can compromise their health. Fatigue complaints are often mentioned, as well as difficulty to recover from work. Aim: To evaluate if napping during night work (duration, latency, allocation and quality) is associated with need for recovery from work, and fatigue perception among nursing professionals. Methods: A cross-sectional study was conducted among nursing professionals in a public hospital of the city of São Paulo, Brazil. At this hospital, napping was allowed during night work. Female nurses and nursing assistants who worked night shifts (19:00h 7:00h) and did not report sleep complaints (N = 49) filled in a questionnaire. The questionnaire included sociodemographic data, aspects of professional and domestic work and health (need for recovery from work - the total score ranged from 0 to 100 - and fatigue perception - the total score ranged from 30 to 150). As a second step, they used an actigraph for 10 consecutive days that allow us to evaluate their wake-sleep cycle. Activity diaries were also filled out during this period of time. Results: The majority of participants (87%) nap during all working nights. The mean duration of napping at work was 136 minutes (sd= 39.8 min). Those who nap in the first half of the night (00:00h-03:00h) showed the longest napping duration, compared to those who nap between 03:00h-06:00h. The perception of sleep quality during night work (napping) was lower compared to night sleep at home during off-days. The sleep latency, either at work, or at home did not show significant differences. The sleep efficiency at work was similar of night sleep efficiency at home, but was higher 29 when compared with sleep efficiency of day sleep at home. The longest duration of napping was associated with long hours of domestic work and higher domestic overload. The mean need for recovery from work was 43.6 points and perception of fatigue was 63.5 points. The younger workers, those who performed short hours of domestic work and registered nurses reported a higher perception of fatigue. There were no associations between sleep during night work (duration, latency, allocation and quality) and need for recovery from work and fatigue perception. However, among participants who worked six or more nights every 15 days, the higher the perception of fatigue and need for recovery from work, the higher the efficiency of sleep during night work. Conclusions: In spite of different napping durations were not associated with fatigue and need for recovery, napping showed positive effects to participants in relation to sleep efficiency and social aspects of their lives.