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1.
J Imaging ; 8(3)2022 Mar 18.
Article in English | MEDLINE | ID: covidwho-1765753

ABSTRACT

This paper presents an evaluation and comparison of interaction methods for the configuration and visualization of pervasive Augmented Reality (AR) experiences using two different platforms: desktop and mobile. AR experiences consist of the enhancement of real-world environments by superimposing additional layers of information, real-time interaction, and accurate 3D registration of virtual and real objects. Pervasive AR extends this concept through experiences that are continuous in space, being aware of and responsive to the user's context and pose. Currently, the time and technical expertise required to create such applications are the main reasons preventing its widespread use. As such, authoring tools which facilitate the development and configuration of pervasive AR experiences have become progressively more relevant. Their operation often involves the navigation of the real-world scene and the use of the AR equipment itself to add the augmented information within the environment. The proposed experimental tool makes use of 3D scans from physical environments to provide a reconstructed digital replica of such spaces for a desktop-based method, and to enable positional tracking for a mobile-based one. While the desktop platform represents a non-immersive setting, the mobile one provides continuous AR in the physical environment. Both versions can be used to place virtual content and ultimately configure an AR experience. The authoring capabilities of the different platforms were compared by conducting a user study focused on evaluating their usability. Although the AR interface was generally considered more intuitive, the desktop platform shows promise in several aspects, such as remote configuration, lower required effort, and overall better scalability.

2.
J Health Psychol ; 27(13): 2997-3012, 2022 11.
Article in English | MEDLINE | ID: covidwho-1706371

ABSTRACT

This study evaluated the measurement invariance of the Portuguese version of the Fear of COVID-19 Scale (FCV-19S) across three countries: Brazil (South America), Mozambique (East Africa), and Portugal (Southwest Europe). A total of 8694 participants were recruited through convenience sampling (7430 Brazilians, 387 Mozambicans, and 877 Portuguese adults). The unidimensional structure of the FCV-19S fitted well with each country's data. Multigroup confirmatory factor analysis showed that the FCV-19S was partially invariant across countries and fully invariant across gender and age groups, thus providing a solid basis for cross-group comparisons. Structural invariance tests revealed different levels of fear across countries and genders but not across age groups.


Subject(s)
COVID-19 , Adult , Brazil , Cross-Cultural Comparison , Fear , Female , Humans , Male , Portugal , Reproducibility of Results
4.
Int J Telerehabil ; 12(2): 65-76, 2020 Dec 08.
Article in English | MEDLINE | ID: covidwho-1215623

ABSTRACT

Maintaining appropriate home rehabilitation programs after stroke, with proper adherence and remote monitoring is a challenging task. Virtual reality (VR) - based serious games could be a strategy used in telerehabilitation (TR) to engage patients in an enjoyable and therapeutic approach. The aim of this review was to analyze the background and quality of clinical research on this matter to guide future research. The review was based on research material obtained from PubMed and Cochrane up to April 2020 using the PRISMA approach. The use of VR serious games has shown evidence of efficacy on upper limb TR after stroke, but the evidence strength is still low due to a limited number of randomized controlled trials (RCT), a small number of participants involved, and heterogeneous samples. Although this is a promising strategy to complement conventional rehabilitation, further investigation is needed to strengthen the evidence of effectiveness and support the dissemination of the developed solutions.

5.
Hematol., Transfus. Cell Ther. (Impr.) ; 42(4):293-299, 2020.
Article in English | LILACS (Americas), Grey literature | ID: grc-745341

ABSTRACT

ABSTRACT During the COVID-19 pandemic, special attention has been addressed in cancer care to mitigate the impact on the patient's prognosis. We addressed our preparation to face COVID-19 pandemic in a Hematological and Stem Cell Transplant Unit in Brazil during the first two months of COVID-19 pandemic and described COVID-19 cases in patients and health care workers (HCW). Modifications in daily routines included a separation of area and professionals, SARS-CoV-2 screening protocols, and others. A total of 47 patients and 54 HCW were tested for COVID-19, by PCR-SARS-CoV-2. We report 11 cases of COVID-19 in hematological patients (including 2 post stem cell transplant) and 28 cases in HCW. Hematological cases were most severe or moderate and presented with several poor risk factors. Among HCW, COVID-19 were mostly mild, and all recovered without hospitalization. A cluster was observed among HCW. Despite a decrease in the number of procedures, the Transplant Program performed 8 autologous and 4 allogeneic SCT during the period, and 49 onco-hematological patients were admitted to continuing their treatments. Although we observed a high frequency of COVID-19 among patients and HCW, showing that SARS-CoV-2 is disseminated in Brazil, hematological patients were safely treated during pandemic times.

6.
Hematol., Transfus. Cell Ther. (Impr.) ; 42(4):293-299, 2020.
Article in English | LILACS (Americas) | ID: covidwho-1022822

ABSTRACT

ABSTRACT During the COVID-19 pandemic, special attention has been addressed in cancer care to mitigate the impact on the patient's prognosis. We addressed our preparation to face COVID-19 pandemic in a Hematological and Stem Cell Transplant Unit in Brazil during the first two months of COVID-19 pandemic and described COVID-19 cases in patients and health care workers (HCW). Modifications in daily routines included a separation of area and professionals, SARS-CoV-2 screening protocols, and others. A total of 47 patients and 54 HCW were tested for COVID-19, by PCR-SARS-CoV-2. We report 11 cases of COVID-19 in hematological patients (including 2 post stem cell transplant) and 28 cases in HCW. Hematological cases were most severe or moderate and presented with several poor risk factors. Among HCW, COVID-19 were mostly mild, and all recovered without hospitalization. A cluster was observed among HCW. Despite a decrease in the number of procedures, the Transplant Program performed 8 autologous and 4 allogeneic SCT during the period, and 49 onco-hematological patients were admitted to continuing their treatments. Although we observed a high frequency of COVID-19 among patients and HCW, showing that SARS-CoV-2 is disseminated in Brazil, hematological patients were safely treated during pandemic times.

7.
Estud. Psicol. (Campinas, Online) ; 37: e200067, 2020. tab
Article in Portuguese | WHO COVID, LILACS (Americas) | ID: covidwho-635046

ABSTRACT

A pandemia e a inerente alteração de comportamentos, a par da parca previsibilidade, geraram maior ansiedade na população. Nesse sentido, este trabalho teve como objetivo analisar se os níveis de depressão, ansiedade e estresse em estudantes universitários se alteraram no período pandêmico (2020) comparativamente a períodos anteriores/normais. O estudo foi constituído por dois grupos, sendo a amostra 1 constituída por 460 sujeitos com idade média de 20,14 anos, e a amostra 2 por 159 sujeitos com idade média de 20,40 anos. Todos preencheram um questionário sociodemográfico e as escalas de ansiedade, depressão e estresse. Os estudantes que integraram o estudo no período pandêmico apresentaram níveis significativamente mais elevados de depressão, ansiedade e estresse comparativamente aos que integraram o estudo no período normal. Os resultados sugerem um impacto psicológico negativo da pandemia nos estudantes. Importa continuar a explorar as implicações da pandemia na saúde mental dos estudantes, para que se possam prevenir e minorar os seus efeitos.


The pandemic and the attendant change in behavior, together with the general unpredictability, has generated great anxiety in the population. In this context, the aim of this study was to analyze whether the levels of depression, anxiety and stress in university students have changed during the period of the pandemic (2020) compared with the previous normality. This study comprised two groups, in which sample-1 is composed of 460 subjects with a mean age of 20.14 and sample-2, 159 subjects with a mean age of 20.40. All the participants completed a sociodemographic questionnaire and were assessed by way of the Anxiety, Depression and Stress Scales. The students evaluated during the period of the pandemic presented significantly higher levels of anxiety, depression and stress, compared with students in erstwhile, normal times. Our results suggest that the pandemic has a negative psychological effect on students. It is important to continue exploring the implications of the pandemic on students' mental health, so that its effects can be prevented, or at least mitigated.


Subject(s)
Mental Health , Young Adult , Pandemics
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