265 research outputs found
Acidentes de trabalho em meio hospitalar: custos associados
O ambiente hospitalar constitui de per si um complexo meio propÃcio
ao surgimento de acidentes de trabalho com os custos associados.
Estudar os acidentes de trabalho em meio hospitalar e os custos associados.
Participantes e Métodos: Estudo longitudinal retrospetivo. A amostra foi constituÃda
por 164 trabalhadores, que no perÃodo de 2006/2010, tiveram acidente de trabalho
notificado numa unidade hospitalar do norte de Portugal.
A recolha dos dados foi realizada no perÃodo de 01/12/2011 a 30/04/2012 no Departamento
de Recursos Humanos, através dos boletins de participação dos acidentes e da
ficha de registo de urgência, junto do responsável pelo departamento.
Recorreremos à estatÃstica descritiva e à inferencial através do teste ANOVA.
Os resultados revelaram as variáveis que se associaram significativamente
com os custos e foram: grupo profissional (p=0,048); parte do corpo atingida
(p=0,002); ação que conduziu à lesão (p=0,031); exames auxiliares de diagnóstico
(p<0,001); agente da lesão (p<0,001) e dias de trabalho perdidos (p<0,001). Os médicos
foram o grupo com maior média (7 605,60 €) nos custos por acidente e os enfermeiros
os mais acidentados (55,5%). O grupo etário mais acidentado situou-se nos 50-54
anos com predominância feminina (82,3%) e mais de 10 anos de serviço (89,0%), sendo a
principal causa, a picada de agulha (32,3%). Os esforços excessivos/movimentos inadequados
foi a lesão que apresentou média de custos (6 501,96€) mais elevada. As mãos
foram a parte do corpo mais lesionada, sendo a cabeça a que apresentou maior média
de custos (9 633,58 €). O maior número de acidentes registou-se entre as 8-16 horas
(62,8%) e nos serviços de internamento médico (29,3%). Os trabalhadores com ausências
faltaram em média 50,93 dias.
Os custos dos acidentes de trabalho são uma realidade com repercussões
económicas significativas, afetando não só os trabalhadores individualmente mas
também as instituições e a sociedade em geral
An Attempt to Identify Meaningful Descriptors of Handgrip Strength Using a Novel Prototype: Preliminary Study
Handgrip strength (HGS) is an indicator of muscle condition and general health wellbeing. Usually, instruments measuring handgrip strength only identify its maximum value. This preliminary study is focused on identifying force vs. time parameters which could contribute to better describe individual strength. They were obtained during a Handgrip strength test of 15 s in a sample group of 94 university students. The tests were conducted with a smart multifunction novel prototype dynamometer, named BodyGrip. Mean values of quantities related to the ability to develop and to maintain strength in percentage of maximum handgrip strength, were extracted from the force vs time profile. Contrary to maximum HGS, such quantities were found to be independent of the participant's anthropometric characteristics. Individual comparisons based on those quantities are therefore not affected by the anthropometric characteristics. It was possible to identify individuals, differing on the development of HGS. Results suggest that the functionality of the BodyGrip tool enables a more thorough characterization of the time profile of the Handgrip strength that might influence the knowledge of the muscle functions, such as power development and endurance
Hábitos de estudio y comprensión lectora en estudiantes del primer grado de secundaria de dos instituciones educativas Lima 2014
La presente investigación tuvo como objetivo determinar el grado de relación
que existe entre los hábitos de estudio y comprensión lectora es, en las
Instituciones, Educativas CEBA No. 2071 César Vallejo, y el CEBA No. 3084
Enrique Guzmán y Valle del distrito de Los Olivos, percibido por los
estudiantes. La investigación realizada fue de enfoque cuantitativo, de tipo
básica, de nivel correlacional, con un diseño no experimental, de corte
transversal.
La población estuvo conformada 106 estudiantes, quienes nos brindaron
información sobre las dos variables, y la muestra de estudio fue de 83
estudiantes.
Para la prueba de hipótesis se utilizó la encuesta como técnica de
recopilación de datos de las variables y se empleó como instrumento la
encuesta compuesta por cinco dimensiones y 53 Ãtems para la variable
hábitos de estudio y para variable comprensión lectora estuvieron compuestos
por 3 dimensiones y 20 Ãtems. Los cuestionarios fueron sometidos a la validez
de contenido a través del juicio de tres expertos con un resultado de aplicable y
el valor de la confiabilidad fue con la prueba Alfa de Cronbach de 0.756
indicándonos una moderada confiabilidad. Los resultados de la investigación
indican que existe relación positiva (r = 0,652) con un nivel de correlación
moderada entre las variables de estudio
Diseño y validación de la Escala de Tiempo Compartido en la Pareja (TCP)
Este estudio busca diseñar y validar la Escala de Tiempo Compartido en la Pareja (TCP)
con el fin de ofrecer un instrumento útil y sencillo de aplicar. Han participado 620 personas que
mantenÃan una relación de pareja (el 57.7% eran mujeres, el 51.6% tenÃa más de 31 años, el 66.1%
convivÃa con su pareja y el 57.9% no tenÃa hijos). La muestra total se dividió en dos grupos, con el
objetivo de desarrollar con el primero un Análisis Factorial Exploratorio (AFE) y con la mitad restante
un Análisis Factorial Confirmatorio (AFC), estrategia denominada validación cruzada. Los resultados
ofrecen una escala con una buena fiabilidad (α = .80), que explica el 55% de la varianza y con una
estructura bifactorial integrada por 7 Ãtems. Su brevedad y validez indican que este instrumento puede
ser de utilidad para la investigación y la práctica profesional, especialmente en el campo de la
prevención y detección de necesidades
Cadmium exposure and cardiovascular disease risk: A systematic review and dose-response meta-analysis
: Exposure to toxic metals is a global public health threat. Among other adverse effects, exposure to the heavy metal cadmium has been associated with greater risk of cardiovascular disease (CVD). Nonetheless, the shape of the association between cadmium exposure and CVD risk is not clear. This systematic review summarizes data on the association between cadmium exposure and risk of CVD using a dose-response approach. We carried out a literature search in PubMed, Web of Science, and Embase from inception to December 30, 2023. Inclusion criteria were: studies on adult populations, assessment of cadmium exposure, risk of overall CVD and main CVD subgroups as endpoints, and observational study design (cohort, cross-sectional, or case-control). We retrieved 26 eligible studies published during 2005-2023, measuring cadmium exposure mainly in urine and whole blood. In a dose-response meta-analysis using the one-stage method within a random-effects model, we observed a positive association between cadmium exposure and risk of overall CVD. When using whole blood cadmium as a biomarker, the association with overall CVD risk was linear, yielding a risk ratio (RR) of 2.58 (95 % confidence interval-CI 1.78-3.74) at 1 μg/L. When using urinary cadmium as a biomarker, the association was linear until 0.5 μg/g creatinine (RR = 2.79, 95 % CI 1.26-6.16), after which risk plateaued. We found similar patterns of association of cadmium exposure with overall CVD mortality and risks of heart failure, coronary heart disease, and overall stroke, whereas for ischemic stroke there was a positive association with mortality only. Overall, our results suggest that cadmium exposure, whether measured in urine or whole blood, is associated with increased CVD risk, further highlighting the importance of reducing environmental pollution from this heavy metal
Comparison of deep-learning data fusion strategies in mandibular osteoradionecrosis prediction modelling using clinical variables and radiation dose distribution volumes
Purpose. NTCP modelling is rapidly embracing DL methods as the need to
include spatial dose information is acknowledged. Finding the most appropriate
way of combining radiation dose distribution images and clinical data involves
technical challenges and requires domain knowledge. We propose different data
fusion strategies that we hope will serve as a starting point for future DL
NTCP studies. Methods. Early, joint and late DL multi-modality fusion
strategies were compared using clinical variables and mandibular radiation dose
distribution volumes. The discriminative performance of the multi-modality
models was compared to that of single-modality models. All the experiments were
conducted on a control-case matched cohort of 92 ORN cases and 92 controls from
a single institution. Results. The highest ROC AUC score was obtained with the
late fusion model (0.70), but no statistically significant differences in
discrimination performance were observed between strategies. While late fusion
was the least technically complex strategy, its design did not model the
inter-modality interactions that are required for NTCP modelling. Joint fusion
involved the most complex design but resulted in a single network training
process which included intra- and inter-modality interactions in its model
parameter optimisation. Conclusions. This is the first study that compares
different strategies for including image data into DL NTCP models in
combination with lower dimensional data such as clinical variables. The
discrimination performance of such multi-modality NTCP models and the choice of
fusion strategy will depend on the distribution and quality of both types of
data. We encourage future DL NTCP studies to report on different fusion
strategies to better justify their choice of DL pipeline.Comment: 10 pages, 4 figures, 3 table
The bulwark of the Alcazaba at the Alhambra: a starting point in its restauration
[EN] The bulwark of the Alcazaba is one of the polyorcetic reforms that the Catholic Monarchs introduced on
the Alhambra since the conquest of Granada in 1492, in order to adapt the fortress to pyrobalistic artillery,
as well as to stablish a new relationship with the city. In essence, it was built in rammed earth, using brick
and masonry fabrics in certain points.
An important section of its parapet was in a high grade of deterioration, as result of the humidity, the
loss of mass of the walls, and deformations caused by uncontrolled vegetation. This situation has triggered
on different processes that have recently ended up with the restoration of a part of the bulwark.
The restoration works, carried out over 20 months, have been strongly conditioned not only by the
location and the layout of the building, that is at the western end of the monumental complex, crowning
a steep slope, but to many functional aspects that have been necessary to plan in order to not interfere
with the public visit to the Alhambra.
Parallel to the restauration, archaeological works have been developed both at the outer base of the
curtain, flank and face of the bulwark and at the inside, with interesting results.
Due to these archaeological and restoration works, it has been possible to stabilize and improve the state
of preservation of the northwest section of this significant part of the Alhambra, improving its stratigraphic
reading and increasing in a substantial way the knowledge of this edge of the hillLópez MartÃnez, F.; Koffler Urbano, T. (2020). El baluarte de la Alcazaba de la Alhambra: un comienzo de su restauración. Editorial Universitat Politècnica de València. 1239-1246. https://doi.org/10.4995/FORTMED2020.2020.115831239124
Sobre as árvores que nascem das pedras: etnografia da Barragem da Póvoa no Alto Alentejo [1923-2013]
Etnografia da Barragem da Póvoa [1923-2013] numa perspetiva diacrónica e contextual, focando o momento do surgimento da obra, as ideias que a sustentam e os usos que o espaço foi tendo ao longo do tempo. Importa salientar que este trabalho mais do que a barragem compreende a paisagem da barragem, uma formação que reflete o todo que se organiza em seu redor, um todo heterogéneo que vai mudando ao longo do tempo, um lugar-paisagem que se mantém vivo, logo inacabado, e que continua a ser importante para as pessoas da região.
Situada no Alto Alentejo, nas bordas da Serra de São Mamede perto da aldeia de Póvoa e Meadas, a barragem de Póvoa é o ponto de partida do sistema hidroelétrico da Ribeira de Nisa. ImbuÃda de um ideal de progresso e civilização, a construção da barragem tinha como objetivo produzir energia através da força das águas — a hulha branca — e, desta forma, trazer desenvolvimento para a região. Na altura considerada uma obra colossal e improvável — foi a primeira barragem construÃda a sul do Tejo com base numa grande albufeira artificial —, tinha já na sua génese a ideia do turismo (de barragem) como fator estratégico de desenvolvimento, uma ideia pioneira que se vai consolidar com o surgimento da barragem de Castelo de Bode e, mais recentemente, do Alqueva.
Este trabalho enquadra-se no objetivo mais vasto de investigar/explorar numa perspetiva antropológica as (inter)relações das pessoas com (e nos) espaços, tendo como grelha teórica o «paradigma ecológico» — ‘dwelling perspetive’ (Ingold 2011).The Ethnography of Póvoa Dam [1923-2013] presented in a diachronic and contextual perspective, focusing on the construction moment of the work, on the ideas that sustain it and on the different uses of space along time. This work is not about a dam in a strict sense but about a dam landscape, a formation that reflects all that is organized around it, an heterogeneous whole that has been changing over time, a place-landscape that remains alive, unfinished, which continues to be important for the people of the region.
Located in Alto Alentejo, in Serra de São Mamede edges, near the village of Póvoa e Meadas, the Póvoa dam is the starting point of the hydroelectric system of the Nisa riverside. Imbued with an ideal of progress and civilization, the Póvoa dam construction was intended to produce energy through the power of water - the white coal - bringing development to the region. At the time, it was considered a colossal and unlikely work — it was the first dam built on the south of Tejo based on a large artificial reservoir — containing already the idea that the dam could attract tourists constituting a major strategic factor of regional development, a pioneer idea that would consolidate later with the emergence of the Castelo de Bode dam and, more recently, with the Alqueva dam.
This work is part of a larger program, to investigate/explore, in an anthropological perspective, the relationships between people and (in) spaces, using the «ecological paradigm» — ‘dwelling perspective’ (Ingold 2011) as a theoretical approach
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