95 research outputs found
Online scheduling: a survey
In this article a deep search of the literature of online scheduling is conducted. This paper intends to assess the developments and solutions found for online scheduling problems. Online scheduling is a very important topic since most of the real scheduling problems have dynamic characteristics. First, it was developed a literature review about scheduling problems, dividing them in stochastic and deterministic problems as well as in online and offline problems. Then, a bibliometric analysis was performed. Finally, some case studies in the field of online scheduling were analyzed. Online Scheduling is mostly explored in industry and health areas. In some articles explored there is a rescheduling, and the sequence of task may change due to the arrival of new tasks. In other cases, the new tasks are introduced in blocks of time that do not affect the previous schedule. This last technique is limited, since, with the arrival of new tasks, the schedule is not re-evaluated. Therefore, it is thought that, in future work, within the scope of online scheduling, when new tasks or other significant changes enter the system, the system should be evaluated, allowing the necessary changes to be made to the existing schedule. The Industry 4.0 and the evolution of Internet of Things (IoT), Deep Learning and Machine Learning favours a continuous and real-time flow of information, which allows the implementation of real-time online scheduling. This is a branch that should be explored in future works.FCT - Fundação para a Ciência e a Tecnologia(UIDB/00319/2020
Towards a Better Understanding of the Factors Associated with Distress in Elderly Cancer Patients: A Systematic Review
his study presents a systematic review of the sociodemographic, clinical, and psychosocial factors associated with distress in elderly cancer patients. Relevant studies were identified using four electronic databases: PubMed, Scopus, Web of Science and ProQuest. Cross-sectional and longitudinal studies exploring factors associated with distress in people over 60 years of age were included and independently assessed using the Joanna Briggs Institute Critical Assessment Checklists. A total of 20 studies met the inclusion criteria. Research showed that being a woman, being single, divorced or widowed, having low income, having an advanced diagnosis, having functional limitations, having comorbidities, and having little social support were factors consistently associated with emotional distress. Data further showed that the impact of age, cancer type, and cancer treatment on symptoms of anxiety and/or depression in elderly patients is not yet well established. The findings of this review suggest that the emotional distress of elderly cancer patients depends on a myriad of factors that are not exclusive, but coexisting determinants of health. Future research is still needed to better understand risk factors for distress in this patient population, providing the resources for healthcare providers to better meet their needs
Perceived cognitive functioning in breast cancer patients treated with chemotherapy compared to matched healthy women: Evidence from a Portuguese study
Aim: Cognitive concerns are one of the most frequently reported symptoms by breast cancer survivors. This study aimed to evaluate perceived cognitive functioning in Portuguese women with breast cancer treated with chemotherapy.
Methods: A cross-sectional study enrolling 146 women (73 with breast cancer and 73 healthy) was conducted from August to October 2017, invited to participate through online dissemination. Participants completed self-reported questionnaires to collect sociodemographic and clinical data and assess perceived cognitive functioning and psychological adjustment variables (anxiety and depression).
Results: Compared to healthy women, women with breast cancer showed significantly lower scores on the Functional Assessment of Cancer Therapy-Cognitive Function (FACT-Cog) subscales and higher levels of depression. Both groups showed
significant negative correlations between perceived cognitive functioning and anxiety
and depression. Health status and depression seem to better explain perceived cognitive
functioning, with health status adding significantly more explained variance
beyond sociodemographic and psychological adjustment variables.
Conclusion: The current findings provide evidence for the existence of more cognitive
complaints among Portuguese women with breast cancer, compared to healthy individuals. Anxiety, depression, age and education also explain perceived cognitive functioning. Considering that health status and psychological adjustment seem to significantly
explain perceived cognitive functioning, special attention should be given by health-care professionals, including nurses, to designing clinical interventions for
breast cancer patients to help manage cognitive impairment
Designing and implementing interdisciplinary projects in a systems engineering master programme
Interdisciplinary projects (IP) carried out by teams of students have been recognized as an important approach for learning in several fields and at several levels of education. In higher education, it can be an important drive for student learning motivation and an advantage for students when entering the working marketplace. The experience acquired while developing IP gives students technical and transversal competences highly relevant for employment but above all give students confidence and a competitive advantage. This paper aims at describing and discussing an experience in carrying out interdisciplinary projects in the context of a System Engineering Master (SEM) programme. First we explore the SEM programme philosophy and organization focussed on IP-based learning and then, for a particular IP course unit of the SEM, the dimensions of project design and specification, project interdisciplinarity, teaching team organization, support to students, project evaluation and individual students’ assessment. The authors argue that the IP learning model adopted in the case here reported is a good example of an IP-based learning at a master degree level.This study had the financial support of COMPETE: POCI-01-0145-FEDER-007043 and FCT -Fundação para a Ciência e Tecnologia within the Project Scope: UID/CEC/00319/201
The Soft Skills Inventory: Developmental procedures and psychometric analysis
When attending and participating in Higher Education, students face a multitude of personal, social, and work-related challenges, which may increase the risk of developing psychopathological symptomatology. To date, there is no instrument that grasps the non-technical skills that may help prepare students to respond to these challenges. This paper presents the development and psychometric properties of the Soft Skills Inventory (SSI). The inventory was developed based on theoretical and empirical findings on the skills associated with academic and professional success, and on students’ perception. The SSI was tested with 2030 Portuguese students (of which 77.1% were female) using a two-stage approach: item calibration and model generation (n = 1033), followed by model validation (n = 997). Item calibration analyses led to retaining 49 items that were organized into six-factors: self-determination, resilience, empathy, assertiveness, social support, and teamwork. This measurement model was further validated and proved to be an invariant, and thus credible, tool to compare male and female students on those relevant skills. All measures attained good internal consistency, with alphas ranging from .76 to .88. Female students scored significantly higher than males on self-determination, empathy, social support and teamwork. On the other hand, male students scored significantly higher on resilience. No significant differences were found between men and women for assertiveness. Psychometric analysis showed that the SSI is a reliable and valid instrument to evaluate students intra and interpersonal skills. The SSI may help identify gaps in soft skills and guide targeted interventions to support a more positive student experience in Higher Education
Impact of a virtual reality-based simulation on empathy and attitudes toward Schizophrenia
Virtual Reality (VR) has been identified as one of the most promising resources for developing empathy towards stigmatized groups as it allows individuals to experience a situation close to reality from another person’s perspective. This quasi-experimental study aimed to examine the impact on empathy, knowledge, and attitudes towards people with schizophrenia of a VR simulation that reproduces the experience of psychotic symptoms while performing a cognitive task compared with watching a 2D video and, thus, how these experiences could reduce stigma towards people diagnosed with schizophrenia. The sample comprised of 102 higher education health students, distributed by the experimental and control groups. The impact of the program was measured by completing multiple questionnaires on levels of empathy, attitudes, and mental health knowledge. Both methods (VR and 2D video) were, to a certain extent, effective. However, VR was more effective at eliciting attitudes and knowledge change compared to the control group. These findings suggest that not only VR but also 2D videos could be interesting strategies to enhance empathy and improve attitudes towards people with schizophrenia in higher education health students.info:eu-repo/semantics/publishedVersio
The Portuguese observatory on occupational psychosocial factors: contribution for public health
To achieve the goal of sustainable employment, considering
the profile of the Portuguese working population (PWP), is
needed a range of strategies to ensure long, productive, and
sustainable careers allied with a better quality of working life,
health, and wellbeing, but also with public health policies
grounded on scientifically validated and reliable data. This is
possible through a comprehensive working system approach
that ensures workers will be mentally and physically able to
remain at work by the balance between work demands and
individual resources allied with public health policies transfer
into the workplaces by organizations’ leadership and policy
makers. The Portuguese Observatory on Occupational Factors
(Popsy@Work) aims at addressing this global challenge by: i)
digitally collecting psychosocial data on the PWP; ii)
implementing and strengthening of a psychosocial occupational
health surveillance digital system; iii) providing
reference values for the PWP concerning Psychosocial
Health; iv) Transferring to society knowledge and best
practices; v) Raising awareness on the importance of
psychosocial management in occupational settings based on
science. Popsy@work is a digital platform that collects and
aggregates psychosocial data analytically and creates a
visualization hub adding value to data on the PWP and
giving science back to society in a usable way, empowering
workers, strengthening organizations and grounding public
policies. Pospy@Work considers the development of strategic
intelligence on levels and inequalities of psychosocial health
and well-being in occupational settings by robust metrics and
reference data. Creating opportunities for national policy
dialogue on inequalities, including the psychosocial health of
the PWP through collaboration with diverse sectors identifying
and mapping subgroups of populations whose unmet needs
require specific outreach measures
Influência da cultivar nas características sensoriais de azeitonas verdes descaroçadas produzidas em Trás-os-Montes.
As azeitonas verdes descaroçadas, regionalmente apelidadas de "alcaparras", são um
tipo de azeitona de mesa produzido de forma tradicional e muito apreciadas em Trás-os-Montes. Inicialmente, a produção deste tipo de azeitonas era vista como um
aproveitamento de frutos caídos da oliveira, sobretudo a partir de meados e finais de
Setembro, situação alterada hoje em dia devido ao preço que este produto atinge. Na
Elaboração deste tipo de azeitonas, os frutos são colhidos verdes, partidos, ocorrendo a
separação do caroço e da polpa que fica quebrada em duas ou mais partes desiguais. A polpa é colocada em água, sendo esta substituída diariamente ate que as azeitonas
percam o amargor ou sejam consideradas "doces". Nesta altura é-lhe adicionado sal e
são temperadas a gosto
Chromatographic techniques to obtain the biomolecules profile of inedible wild mushrooms with antioxidant value
The use of natural products isolated from mushrooms, included inedible species, against
infection, cancer diseases and other oxidative-stress related diseases is one of the
cornerstones of modern medicine [1]. In the present work, the antioxidant molecule
profiles of inedible mushroom species were evaluated and compared with those of edible
species.
Mono and oligosaccharides {sugars), fatty acids and tocopherols were analysed by high
performance liquid chromatography coupled to refraction index detection {HPLC/RI) , HPLC
coupled to fluorescence and gas chromatography coupled to flame ionization detection
{GC/FID), respectively. Ascorbic acid, carotenoids, phenolics and flavonoids were obtained
by spectrophotometric techniques. The analysed molecules were further related to
antioxidant properties, evaluated by free radical scavenging activity, reducing power and
lipid peroxidation inhibition.
The order of antioxidant abundance found in inedible wild mushrooms was: phenolics >
flavonoids > ascorbic acid > tocopherols > carotenoids, similar to that of edible species.
Furthermore the same energetic biomolecules were found including the disaccharide
trehalose, the monosaccharide alcohol derivative mannitol and the fatty acids palmitic,
oleic and linoleic acids. Fomitopsis pinicola revealed a very high phenolics concentrat ion
{388 mg GAE/g extract) and powerful antioxidant properties, mainly reducing power { EC50
value 60 ug/ml similar to the standard Trolox®). It could find applications in the prevention
of free radical-related diseases as a source of bioactive compounds
The Portuguese Third Version of the Copenhagen Psychosocial Questionnaire: Preliminary Validation Studies of the Middle Version among Municipal and Healthcare Workers
A third version of the Copenhagen Psychosocial Questionnaire (COPSOQ III) was developed
internationally aiming to respond to new trends in working conditions, theoretical concepts,
and international experience. This article aims to present the preliminary validation studies for the Portuguese middle version of COPSOQ III. This is an exploratory cross-sectional study viewing the cross-cultural adaption of COPSOQ III to Portugal, ensuring the contents and face validity and performing field-testing in order to reduce the number of items and to obtain insight into the data structure, through classic test theory and item response theory approaches. The qualitative study encompassed 29 participants and the quantitative one 659 participants from municipalities and healthcare settings. Content analysis suggested that minor re-wording could improve the face validity of items, while a reduced version, with 85 items, shows psychometric stability, achieving good internal consistency in all subscales. The COPSOQ III Portuguese middle version proved to be a valid preliminary version for future validation studies with various populations, able to be used in correlational studies with other dimensions
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