453 research outputs found
Correction to: Northerly wind trends along the Portuguese marine coast since 1950
All figure captions are not accurate. Also, there is a repeated error in most figures because the vertical scales incorrectly show Wind Strenght instead of Wind Strength and in Fig. 4 (mid-panel) 2003 instead of 2004.info:eu-repo/semantics/publishedVersio
A Violência no Local de Trabalho em Instituições de Saúde: Um Estudo Monocêntrico sobre Causas, Consequências e Estratégias de Prevenção
Introduction: Workplace violence is one of the main risk factors in the professional world. Healthcare workers are at higher risk when
compared to other sectors. Our study aimed to characterize physical and verbal violence in a public hospital and to define occupational
health prevention and surveillance strategies.
Material and Methods: Single center observational cross-sectional study, carried amongst healthcare workers in a public hospital in
Lisbon. A qualitative survey was carried out through six in-depth interviews. A quantitative survey was carried through questionnaires
delivered to 32 workers. A significance level of 5% was accepted in the assessment of statistical differences. The Mann-Whitney test
and the Fisher’s exact test were used to calculate p values.
Results: The main results are: (1) 41 violence incidents were reported in the quantitative phase; (2) 5/21 [23.81%] victims notified
the incident to the occupational health department; (3) 18/21 [85.71%] victims reported a permanent state of hypervigilance; (4) 22/28
[78.57%] participants self-reported poor or no familiarity with internal reporting procedures; (5) 24/28 [85.71%] participants believed it
is possible to minimize workplace violence.
Discussion: Workplace violence is favored by unrestricted access to working areas, absence of security guards and police officers
or scarce intervention. The low notification rate contributes to organizational lack of action. The state of hypervigilance reported in our
study reflects the negative effects of threatening occupational stressors on mental health.
Conclusion: Our results show that workplace violence is a relevant risk factor that significantly impacts workers’ health in a noxious
manner, deserving a tailored occupational health approach whose priority areas and strategies have been determined.Introdução: A violência no local de trabalho é um dos principais fatores de risco no mundo do trabalho. Os trabalhadores da saúde
apresentam um risco superior. O nosso estudo teve como objetivo caracterizar a violência física e verbal num hospital público e definir
estratégias de prevenção e vigilância em saúde ocupacional.
Material e Métodos: Estudo observacional transversal monocêntrico, conduzido num hospital público em Lisboa com trabalhadores
da saúde. Foi realizado um inquérito qualitativo com entrevistas em profundidade a seis trabalhadores e um inquérito quantitativo
com questionários a 32 trabalhadores. Aceitou-se um nível de significância de 5% na avaliação das diferenças estatísticas. O teste de
Mann-Whitney e o teste exato de Fisher foram usados para calcular os valores de p.
Resultados: Os principais resultados são: (1) 41 episódios reportados na fase quantitativa; (2) 5/21 [23,81%] vítimas notificaram o incidente; (3) 18/21 [85.71%] vítimas reportaram estados de hipervigilância permanente; (4) 22/28 [78,57%] participantes não conheciam
ou conheciam mal os procedimentos de notificação; (5) 24/28 [85,71%] consideravam possível minimizar o problema.
Discussão: A violência é favorecida pelo acesso livre às zonas de trabalho, ausência de agentes de segurança e polícia ou falta da
respetiva intervenção. A baixa notificação contribui para a ausência de medidas organizacionais. O estado de hipervigilância relatado
reflete o efeito prejudicial da exposição a fontes de stress e ameaça.
Conclusão: A violência no local de trabalho é um fator de risco relevante, com impacto negativo na saúde dos trabalhadores e merece
uma abordagem individualizada no âmbito da saúde ocupacional, cujas áreas e estratégias prioritárias foram definidas neste estudo.
Palavras-chave: Fatores de Risco Profissionais; Prevenção; Saúde Ocupacional; Trabalhadores da Saúde; Violência no Local de trabalho.info:eu-repo/semantics/publishedVersio
Fabrico rápido de implantes ósseos personalizados
Actualmente existem situações clínicas
específicas relacionadas com
perdas ou correcções ósseas significativas,
cuja solução dificilmente
poderá ser alcançada com implantes
ou próteses disponíveis comercialmente,
sendo necessário o recurso a
soluções personalizadas (ditas customizadas),
isto é, implantes que são
concebidos e fabricados em função
das especificidades do paciente.
Neste sentido, o desenvolvimento de
uma nova metodologia que permita
o fabrico rápido de implantes ósseos
em simultâneo com o acto cirúrgico
poderá apresentar vantagens significativas,
pois permite ao cirurgião
corrigir ou alterar a geometria do
implante em função de uma qualquer
ocorrência anómala detectada
já durante a cirurgia.
A abordagem neste trabalho passou
pelo desenvolvimento de uma aplicação
informática que permitisse integrar
numa única plataforma um conjunto
de ferramentas como scanner 3D, sistema
de fabrico assistido por computador
(CAM) e fabrico em máquinas
controladas por computador (CNC)
para assim fabricar de forma rápida
um implante adaptado à anatomia do
paciente. O método estabelecido
assentou em quatro etapas essenciais:
a primeira consiste na captação da
geometria do implante, realizada
localmente pelo cirurgião e não
envolve meios computacionais. A
segunda consiste na obtenção do
modelo virtual da geometria do
implante, realizada a partir do levantamento
de forma do modelo obtido na etapa anterior, utilizando um scanner 3D por laser. A terceira etapa
consiste na utilização de um sistema CAM para a elaboração do programa
de maquinagem do implante. Na quarta e última etapa materializa-
se o fabrico do implante numa fresadora CNC.
O sistema desenvolvido permitiu integrar recursos e tecnologias cuja
utilização exige conhecimentos muito especializados, mas inseridos
num ambiente amigável para o utilizador possibilita que estes possam
ser utilizados por pessoas não profundamente conhecedoras das tecnologias
integradas. A solução implementada revelou-se mais acessível
ao nível dos custos de aquisição das tecnologias de suporte e da
facilidade de utilização quando comparada com outros processos de
fabrico de implantes customizados, nomeadamente os obtidos a partir
de informação gerada por tomografia computorizada (TAC)
The effect of inventory record inaccuracy in information exchange supply chains
The goal of this paper is to quantify the impact of Inventory Record Inaccuracy on the dynamics of collaborative supply chains, both in terms of operational performance (i.e. order and inventory stability), and customer service level. To do so, we model an Information Exchange Supply Chain under shrinkage errors in the inventory item recording activity of their nodes, present the mathematical formulation of such supply chain model, and conduct a numerical simulation assuming different levels of errors. Results clearly show that Inventory Record Inaccuracy strongly compromises supply chain stability, particularly when moving upwards in the supply chain. Important managerial insights can be extracted from this analysis, such as the role of 'benefit-sharing' strategies in order to guarantee the advantage of investments in connectivity technologies
Ensaios de integridade estrutural de placas angulares de fixação de fracturas ósseas do fémur
Neste trabalho descreve-se o projecto de um dispositivo mecânico desenvolvido para a
realização de ensaios segundo a norma ASTM F384-00 (2000) de placas de osteossíntese
anguladas. O dispositivo foi objecto de uma análise estrutural usando o método dos
elementos finitos. Algumas placas foram ensaiadas estaticamente e suas características
mecânicas, de acordo com a norma, determinadas
Sistema de fabrico rápido de implantes ortopédicos
Este estudo teve como objectivo o desenvolvimento uma metodologia
de fabrico rápido de implantes ortopédicos, em simultaneidade
com a intervenção cirúrgica, considerando duas
potenciais aplicações na área ortopédica: o fabrico de implantes
anatomicamente adaptados e o fabrico de implantes para substituição
de perdas ósseas. A inovação do trabalho desenvolvido
consiste na obtenção in situ da geometria do implante, através
da impressão directa de um material elastomérico (polivinilsiloxano)
que permite obter com grande exactidão a geometria
pretendida. Após digitalização do modelo obtido em material
elastomérico, o implante final é fabricado por maquinagem recorrendo
a um sistema de CAD/CAM dedicado. O implante
após esterilização, pode ser colocado no paciente. O conceito
foi desenvolvido com recurso a tecnologias disponíveis comercialmente
e de baixo custo. O mesmo foi testado sob a forma
de uma artroplastia da anca realizada in vivo numa ovelha. O
acréscimo de tempo de cirurgia foi de 80 minutos sendo 40
directamente resultantes do processo de fabrico do implante.
O sistema desenvolvido revelou-se eficiente no alcance dos
objectivos propostos, possibilitando o fabrico de um implante
durante um período de tempo perfeitamente compatível com o
tempo de cirurgia.This study, aimed the development of a methodology for rapid
manufacture of orthopedic implants simultaneously with the
surgical intervention, considering two potential applications
in the fields of orthopedics: the manufacture of anatomically
adapted implants and implants for bone loss replacement. This
work innovation consists on the capitation of the in situ geometry
of the implant by direct capture of the shape using an elastomeric
material (polyvinylsiloxane) which allows fine detail
and great accuracy of the geometry. After scanning the elastomeric
specimen, the implant is obtained by machining using a
CNC milling machine programmed with a dedicated CAD/CAM
system. After sterilization, the implant is able to be placed on
the patient. The concept was developed using low cost technology
and commercially available. The system has been tested in
an in vivo hip arthroplasty performed on a sheep. The time increase
of surgery was 80 minutes being 40 minutes the time of
implant manufacturing. The system developed has been tested
and the goals defined of the study achieved enabling the rapid
manufacture of an implant in a time period compatible with the
surgery time
Erasmus experience between the University of Cadiz (Spain) and the University of Algarve (Portugal)
A mobility program was carried out during the last two years between the Universities of Cadiz (Spain)
and Algarve (Portugal) under the EU funded Erasmus+ Mobility for Teaching. The objective of the
mobility was twofold: on one hand, it included the strengthening of the existing scientific cooperation
between the University of Cadiz (home institution) and the University of Algarve (host institution) in the
field of the Gulf of Cadiz Physical Oceanography; on the other hand, it pretended to improve the
teaching quality, focusing on both the lecturers and the students. Both institutions have long ties of
cooperation that have recently been intensified under the umbrella of the International Campus of
Marine Excellence (CeiMar). Specific objectives oriented towards the lecturers included the exchange
of teaching experiences among them as well as the comparison of teaching strategies and
methodologies between the host and home institutions at the Master level in order to evaluate and
enhance the best teaching practices with the aim of improving the students learning process. Specific
objectives oriented towards the students included: (1) to provide local students that cannot afford
studying a Master degree abroad with a foreign teacher in the discipline that will offer them different
added expectations; (2) to teach students different subjects from those taught at the host institution,
thus benefitting from new scientific knowledge and experiences. It must be pointed out that the subject
taught by the home institution lecturer represents a competence lacking at the host institution, hence
complementing the program of the discipline and providing an added value to the Master degree.
Informal questionnaires carried out among students by the host institution revealed that they evaluated
having a foreign teacher as a very positive experience. In terms of research, collaboration among both
institutions is of great importance because they are both located within the same geographic region
and hence, they share common interests. The mobility promoted finishing on-going collaborative
publications as well as sharing new research experiences, data and knowledge, hence leading to an
improvement of the Physical Oceanography state-of-the-art in the Gulf of Cadiz. In fact, two scientific
papers on the Gulf of Cadiz circulation system and two on the storm climate along the Gulf of Cadiz
and its relation with coastal hazards have been recently published as a direct result of the mobility
program.info:eu-repo/semantics/publishedVersio
Sn and Cu in melt inclusions of the Albernoa felsic volcanic centre, Iberian Pyrite Belt, Portugal : seeking for the missing (magmatic) link
Family: the challenge of prevention of drug use.
CONTENTS OF THE BOOK
From the original research for the knowledge and evaluation of family prevention programs in the five European countries we decided to enrich our study with different contributions in this field. Thus, some researchers have contributed to the organization of this book, having participated in the elaboration of some chapters.
In the first chapter a description and a socio-historical framework of the evolution of the prevention concept are made. Throughout the years we have been learning how to better define and interpret the true meaning of drug use primary prevention. From the information to prevention as science a long way has been covered in a short period of time.
In the second chapter we mention and describe all the existing theoretical models. We remind you that only some time ago preventive interventions were performed according to the idea that information on drugs was necessary and sufficient to avoid youngsters using them. The prevention models give support and frame the different preventive interventions, justifying the options made.
In the third chapter, and based on the wider and deeper knowledge on protective and risk factors, we present the prevention strategies more often used. We also describe the preventive programs mentioned in the three areas we highlighted: Family – School – Community.
In Chapter 4, after the definition of our research aims, we present the grids used in the reading of the selected projects in the five countries. They are two distinct grids that help us to understand the different levels of preventive intervention: a) one, which we call Level I grid, that refers to all the preventive interventions socalled occasional; b) Level II grid, which mentions long time actions with a theoretical framework. We also present and discuss the obtained data.
In the fifth chapter we present the contribution of three of our researchers, approaching several themes. Professor Boyer, bearing in mind the results of IREFREA’s research (Mendes & Relvas et al, 1999) develops the issue of religion/spirituality as a protective factor. Dr. Susanna Pietralunga describes the preventive activities in family context and their evolution, from the Italian reality. Professor Paula Relvas approaches the family life cycle: a framework for primary prevention of drug use. In Chapter 7 the conclusions of our work are presented and a series of orientations are suggested, taking into account future preventive activities in family context
Physical oceanography of the western Iberia ecosystem: latest views and challenges.
The present review is focused on the mesoscale physical processes recognized in the Western Iberia Ecosystem, complementing earlier reviews dedicated to larger scales. Recent studies support the idea that the mesoscale processes, superimposed on the larger scale variability, are the major factor controlling the ecosystem functioning in the region. A complex structure of interleaved alongshore slope, shelf and coastal currents that interact with eddies, buoyant plumes, upwelling filaments and fronts, surface layer expressions of the subsurface circulation and internal waves is revealed by the latest research. All of these contribute in different ways to have an effect on the ecosystem. The supposedly less variable winter circulation also exhibits significant mesoscale activity, in the form of eddy shedding from the poleward slope current, intermittent upwelling events and transient nearshore poleward flows. The present incomplete knowledge of this complex system presents a number of challenges and questions that must be addressed if we are to arrive at a satisfactory understanding and predictive capability for the system as a whole
- …
