739 research outputs found
Ageism and the State of Older People With Mental Conditions During the Pandemic and Beyond: Manifestations, Etiology, Consequences, and Future Directions
The pandemic has put the spotlight on older people and on the topic of ageism. In early 2021, a call was made for input into the Thematic Report on Ageism and Discrimination to inform the United Nations Independent Expert on the Rights of Older Persons' forthcoming report to the 48th session of the Human Rights Council. The aim of this paper is to articulate the International Psychogeriatric Association (IPA) and the World Psychiatric Association Section of Old Age Psychiatry (WPA-SOAP) response to this call. This brief statement on ageism with a special focus on older people with mental health conditions is divided into three sections. We start by outlining the various manifestations of ageism in varied contexts and countries with a primary focus on the pandemic. Possible consequences of ageism with a focus on older people's mental health and well-being are outlined. We conclude by discussing ways to overcome ageism and reduce its occurrence, especially during times of extreme conditions
ATR-FTIR spectroscopy for virus identification: A powerful alternative
In pandemic times, like the one we are witnessing for COVID-19, the discussion about new efficient and rapid techniques for diagnosis of diseases is more evident. In this mini-review, we present to the virological scientific community the potential of attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy as a diagnosis technique. Herein, we explain the operation of this technique, as well as its advantages over standard methods. In addition, we also present the multivariate analysis tools that can be used to extract useful information from the data towards classification purposes. Tools such as Principal Component Analysis (PCA), Successive Projections Algorithm (SPA), Genetic Algorithm (GA) and Linear and Quadratic Discriminant Analysis (LDA and QDA) are covered, including examples of published studies. Finally, the advantages and disadvantages of ATR-FTIR spectroscopy are emphasized, as well as future prospects in this field of study that is only growing. One of the main aims of this paper is to encourage the scientific community to explore the potential of this spectroscopic tool to detect changes in biological samples such as those caused by the presence of viruses
Understanding Barriers to the Realization of Human Rights Among Older Women With Mental Health Conditions
There is increasing emphasis in research and at the level of international human rights bodies such as the United Nations on the gendered contours of age-based disadvantage and discrimination, and the cumulative effects of gender inequalities over the life-course on outcomes in later life. However, to date, the role of mental health in shaping the age/gender nexus in the realization of human rights has received little attention. In response, this paper aims to 1) elucidate the economic, social and cultural disadvantages and discrimination faced by older women living with mental health conditions; and 2) identify opportunities to protect their human rights. It concludes that older women face inequalities and disadvantages at the intersections of age, gender, and mental health and wellbeing that compromise their capacity to age well, illuminating the urgent need for a UN Convention on the Human Rights of Older Persons that considers the role of mental health in shaping the realization of human rights among older people. (Am J Geriatr Psychiatry 2021; 29:1009-1014
Two Different Methods For Kinematic Analysis Of Head Movements Relating To Eye-head Coordination In Infants
Background: Kinematic analysis is a method for quantitative assessment applied in different fields of study. In the field of motor development, this analysis may promote better understanding of the acquisition and development of motor skills. Objective: To develop and compare two experimental set-ups for kinematic analysis of head movements relating to eye-head coordination (EHC) in infants. Methods: Two experimental set-ups (A and B) were tested. They differed from each other regarding the numbers and locations of the cameras, and regarding the volume of the calibration system. Results: The accuracy of the two experimental set-ups was 2.47mm, thus indicating that both can provide realistic reconstructions of the movement. The three cameras used in set-up B made it possible to view the full range of motion with at least one of the cameras. This led to improvement of the qualitative analysis and reduction of the time taken to process quantitative data, which was 33% shorter than seen with set-up A. In addition, set-up B presented a better cost-benefit relationship. Conclusions: Although both set-ups were adequate for kinematic analysis of head movements relating to EHC in infants, set-up B is more advantageous. The methodology for set-up B can be used in studies investigating head movements in either typical or atypical infants. 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Gallium-67 Imaging In A Patient With Paracoccidioidomycosis: A Case Report
A 26 year-old female was admitted with abdominal pain, fever and weight loss. The clinical and laboratory investigations led to the diagnosis of paracoccidioidomycosis. Gallium-67 whole body images correlated well with the clinical course of the disease and with the patient's prognosis.423167170Barbosa, W., Paracoccidioidomicose (Blastomicose sul-americana) (1989), pp. 653-662. , AMATO NETO, V. & BALDY, J.L.S., ed. Doenças transmissÃveis. 3. ed. São Paulo, SarvierBarbosa, W., Daher, R.R., Blastomicose sul-americana (Paracoccidioidomicose) (1995), pp. 634-646. , VERONESI, R.FOCACCIA, R. & DIETZE, R., ed. Doenças infecciosas e parasitárias. 8. ed. São Paulo, Guanabara-KooganBecker, W., The contribution of nuclear medicine to the patient with infection (1995) Europ. J. Nucl. Med., 22, pp. 1195-1211Bethlem, N.M., Lemle, A., Bethlem, E., Wanke, B., Paracoccidioidomycosis (1991) Semin. Resp. Med., 12, pp. 81-97Braga, F.J.H.N., Abreu, P.R., Rivitti, M.C.M., La paracoccidioidomycose chéloide étudiée avec le gallium (1992) Bull. Soc. Path. Exot., 85, pp. 118-119Braga, F.J.H.N., Camargo, E.E., Segurado, A.A.C., La paracoccidioidomycose évaluée par quatre études isotopiques (1992) Bull. Soc. Path. Exot., 85, pp. 115-117Dayaniki, B.F., Weissman, A.F., Wahl, R.L., Successful gallium-67 imaging of North American pulmonary blastomycosis (1993) J. Nucl. Med., 34, pp. 958-960Del Negro, G.M.B., Garcia, N.M., Rodrigues, E.G., The sensitivity, specificity and efficiency values of some serological tests used in the diagnosis of paracoccidioidomycosis (1991) Rev. Inst. Med. Trop. S. Paulo, 33, pp. 277-280Giorgi, M.C.P., Camargo, E.E., Pinto, W.P., Del Negro, G., Gallium-67 imaging in the diagnosis of blastomycosis (1987) Europ. J. Nucl. Med., 13, pp. 300-304Negroni, R., Paracoccidioidomycosis (1993) Int. J. Derm., 32, pp. 847-859Palestro, C.J., The current role of gallium imaging in infection (1994) Semin. Nucl. Med., 24, pp. 128-141Peters, A.M., The use of nuclear medicine in infections (1998) Brit. J. Radiol., 71, pp. 252-26
Indicadores de qualidade do solo em sistemas de cultivo orgânico e convencional no semi-árido Cearense.
A qualidade do solo pode mudar com o passar do tempo, em decorrência de eventos naturais ou ações antrópicas. A adoção de práticas de cultivo orgânico reduz o revolvimento do solo, favorecendo a recuperação de suas propriedades
fÃsicas e quÃmicas. Este trabalho teve como objetivo comparar propriedades fÃsicas,quÃmicas e biológicas de solos cultivados com algodão em bases orgânicas e no
sistema convencional, assim como identificar as que possam ser utilizadas como indicadores de qualidade do solo. Selecionaram-se seis áreas submetidas ao cultivo orgânico e três ao cultivo convencional para coleta de amostras de solo deformadas e indeformadas, nas camadas de 0–10, 10–20 e 20–30 cm. Técnicas de estatÃstica univariada e multivariada foram utilizadas para análise dos dados. Os resultados mostraram que os indicadores fÃsicos e quÃmicos testados individualmente não foram sensÃveis para diferenciar as áreas sob sistema de cultivo orgânico daquelas sob cultivo convencional. No entanto, a aplicação de técnicas de análise multivariada – no caso, componentes principais e a discriminante de Anderson – permitiu a distinção entre algumas áreas cultivadas sob cultivo orgânico comparativamente à s convencionais, até mesmo as que estavam em transição.Dos indicadores biológicos, a fauna edáfica mostrou-se mais precisa na avaliação
da qualidade do solo, distinguindo de forma satisfatória as áreas sob sistema de cultivo orgânico das que estavam sob sistema convencional
Improving data splitting for classification applications in spectrochemical analyses employing a random-mutation Kennard-Stone algorithm approach
Motivation: Data splitting is a fundamental step for building classification models with spectral data, especially in biomedical applications. This approach is performed following pre-processing and prior to model construction, and consists of dividing the samples into at least training and test sets; herein, the training set is used for model construction and the test set for model validation. Some of the most used methodologies for data splitting are the random selection (RS) and the Kennard-Stone (KS) algorithms; here, the former works based on a random splitting process and the latter is based on the
calculation of the Euclidian distance between the samples. We propose an algorithm called the Morais-Lima-Martin (MLM) algorithm, as an alternative method to improve data splitting in classification models. MLM is a modification of KS algorithm by adding a random-mutation factor.
Results: RS, KS and MLM performance are compared in simulated and six real-world biospectroscopic applications using principal component analysis linear discriminant analysis (PCALDA).
MLM generated a better predictive performance in comparison with RS and KS algorithms, in particular regarding sensitivity and specificity values. Classification is found to be more wellequilibrated using MLM. RS showed the poorest predictive response, followed by KS which showed good accuracy towards prediction, but relatively unbalanced sensitivities and specificities. These findings demonstrate the potential of this new MLM algorithm as a sample selection method for
classification applications in comparison with other regular methods often applied in this type of data.
Availability: MLM algorithm is freely available for MATLAB at https://doi.org/10.6084/m9.figshare.7393517.v1.
Contact: [email protected]/[email protected]
Cross-cultural validity of the Animated Activity Questionnaire for patients with hip and knee osteoarthritis: a comparison between the Netherlands and Brazil
Background: The Animated Activity Questionnaire (AAQ) was developed in the Netherlands to assess activity limitations in individuals with hip/knee osteoarthritis (HKOA). The AAQ is easy to implement and minimizes the disadvantages of questionnaires and performance-based tests by closely mimicking real-life situations. The AAQ has already been cross-culturally validated in six other countries. Objective: To assess the cross-cultural validity, the construct validity, the reliability of the AAQ in a Brazilian sample of individuals with HKOA, and the influence of formal education on the construct validity of the AAQ. Methods: The Brazilian sample (N = 200), mean age 64.4 years, completed the AAQ and the Western Ontario and McMaster Universities Index (WOMAC). A subgroup of participants performed physical function tests and completed the AAQ twice with a one-week interval. The Dutch sample (N = 279) was included to examine Differential Item Functioning (DIF) between the scores obtained in the Netherlands and Brazil. For this purpose, ordinal regression analyses were used to evaluate whether individuals with the same level of activity limitations from the two countries (the Dutch as the reference group) scored similarly in each AAQ item. To evaluate the construct validity, correlation coefficients were calculated between the AAQ, the WOMAC domains, and the performance-based tests. To evaluate reliability, the Cronbach's alpha coeffi-cient, the intraclass correlation coefficient, and the standard error of measurement (SEM) were calculated. Results: The AAQ showed significant correlations with all the WOMAC domains and performance -based tests (rho=0.46-0.77). The AAQ showed high internal consistency (Cronbach's alpha=0.94), excellent test-retest reliability (ICC2,1 = 0.98), and small SEM (2.25). Comparing to the scores from the Netherlands, the AAQ showed DIF in two items, however, they did not impact on the total AAQ score (rho=0.99). Conclusion: Overall, the AAQ showed adequate cross-cultural validity, construct validity, and reliability, which enables its use in Brazil and international/multicenter studies. (c) 2021 Associacao Brasileira de Pesquisa e Pos-Graduacao em Fisioterapia. Published by Elsevier Espana, S.L.U. All rights reserved.Orthopaedics, Trauma Surgery and Rehabilitatio
Land cover, land use and malaria in the Amazon: a systematic literature review of studies using remotely sensed data
The nine countries sharing the Amazon forest accounted for 89% of all malaria cases reported in the Americas in 2008. Remote sensing can help identify the environmental determinants of malaria transmission and their temporo-spatial evolution. Seventeen studies characterizing land cover or land use features, and relating them to malaria in the Amazon subregion, were identified. These were reviewed in order to improve the understanding of the land cover/use class roles in malaria transmission. The indicators affecting the transmission risk were summarized in terms of temporal components, landscape fragmentation and anthropic pressure. This review helps to define a framework for future studies aiming to characterize and monitor malaria
Match internal load in youth elite soccer players is period, playing position and intermittent running capacity dependent
Aims: The aims of this study were: i) to verify whether player internal load (PIL) monitored via heart rate (HR) varies with game-time and playing position; ii) whether intermittent running capacity (IRC) is related to the maintenance of within-match PIL in elite youth (U-15) soccer players.
Method: Twenty-one elite soccer players (14±0.5 yrs, 172±7 cm, 63±6 kg) had their heart rate monitored (beats/min) in five matches and were tested twice for IRC (Yo-YoIR2, distance [m]) over a seven-week competitive season. Percentage of maximal heart rate (%HRmax) and time spent (TS%) in five zones (Z1[96%]) were our PIL indexes. Data from three complete games in the same position of each player were analyzed and matches halves, time intervals (T1 to T6), and playing positions (fullbacks, central defenders and forwards [N=5 each], midfielders [N=6]) were compared, and the relationship between IRC and within-match PIL was determined.
Results: PIL was higher in 1st (86±3%) than in the 2nd half (84±4%; p<.001). The 2nd half had more TS% in Z1 and Z2 (p<.05). PIL in T4 was the lowest (p<.01), and in T6, it was lower than T1 and T2 (p<.01). Fullbacks and midfielders showed higher PIL and higher TS% in Z4 (p<.05) than the other positional roles. The average IRC correlated with PIL in T6 (r=.56, p<.01) only.
Conclusion: In conclusion, the internal load in elite youth (U-15) soccer players varies with game-time and playing position; and their IRC is related to the maintenance of within-match PIL
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