Relaciones entre el conocimiento conceptual y el procedimental en el aprendizaje de las fracciones

El objetivo de este trabajo fue analizar las relaciones entre el conocimiento conceptual y el procedimental de las fracciones durante su aprendizaje. Para esto se efectuó una búsqueda bibliográfica en las bases de datos ERIC, PsycInfo, Scielo y Redalyc, con los siguientes términos en español y sus equivalentes en inglés: fracciones (fractions), conocimiento conceptual (conceptual knowledge), conocimiento procedimental (procedural knowledge) y niños (children), combinados de diferente forma con el operador booleano AND (Y). Los resultados de esta búsqueda permitieron hallar quince artículos empíricos que pueden clasificarse en cuatro grupos de investigaciones: las que indican una relación bidireccional, las que sugieren una relación unidireccional, las que muestran cierta independencia o restricciones en su vinculación y, por último, las que señalan que las relaciones varían según los sujetos. Esta falta de acuerdo podría explicarse por ciertas diferencias metodológicas de los estudios, por ejemplo, diferencias en el grado de consolidación del conocimiento de las fracciones de los participantes, el sentido conceptual o la habilidad procedimental estudiada, el tipo de enseñanza matemática recibida, etc. Por ello se sugiere que, para profundizar la comprensión de las relaciones entre el conocimiento conceptual y procedimental de las fracciones, estos aspectos metodológicos deben ser controlados.

A systematic review on the factors associated with positive experiences in carers of someone with cancer.

The aim of this review was to identify the factors associated with positive experiences in non-professional carers of someone with a cancer diagnosis. A systematic search of the following electronic databases was undertaken: Cochrane Library, CINAHL, PsycINFO, SocINDEX and Medline. Literature was searched using terms relating to cancer, caring and positive experiences. Additional records were identified through a manual search of relevant reference lists. The search included studies published in English from 1990- June 2015. Two raters were involved in data extraction, quality appraisal, coding, synthesis, and analysis. Evolutionary concept analysis was used as a guiding framework in order to focus on attributes associated with positive experiences. Fifty two articles were included in this review. Analysis identified four overarching attributes: ‘gender’, ‘personal resources’, ‘finding meaning’ and ‘social context’. Despite the challenges associated with caring this combination of internal and external factors enabled some carers to report positive experiences related to caring. This knowledge may be clinically helpful when designing supportive interventions. Strengths and limitations of these claims are discussed.

Evaluación diagnóstica de la Dismorfia Muscular: una revisión sistemática

El objetivo de este estudio fue examinar las investigaciones realizadas sobre la evaluación diagnóstica de la Dismorfia Muscular (DM). Se realizó una búsqueda sistemática en las bases PsycINFO y Medline de 1997 a 2012, los descriptores fueron: "muscle dysmorphic disorder" "vigorexia" y "male". 17 estudios cumplieron los criterios de inclusión, de éstos, todos utilizaron los criterios diagnósticos propuestos por Pope et al. (1997). Aquellos con DM están preocupados por el tamaño corporal, levantan pesas de 3 a 7 días por semana, realizan dietas hiperproteicas y en ocasiones utilizan suplementos alimentarios y esteroides. En conclusión, los criterios de Pope et al. (1997) son la base para el diagnóstico de DM y el DSM-5 los retoma al reconocer e incluir a la DM como una patología.

Intervenções de enfermagem eficazes no apoio ao familiar cuidador de pessoa com demência não institucionalizada: Revisão sistemática

O aumento do número de pessoas com demência e dos custos associados aos cuidados de saúde, levam à crescente necessidade de providenciar apoio efetivo aos familiares cuidadores (FCs), no sentido de potenciar as capacidades destes e diminuir os riscos de morbilidade. Objetivo: A presente revisão sistemática da literatura (RSL) tem como objetivo identificar as intervenções de enfermagem eficazes no apoio ao FC de pessoa com demência, não institucionalizada. Método: Foi realizada uma pesquisa eletrónica de artigos, nas bases de dados CINAHL, MEDLINE, EMBASE, PsycINFO, The Cochrane Database of Systematic Reviews, The JBI Database of Systematic Reviews and Implementation Reports, e Repositório Científico de Acesso Aberto de Portugal, no intervalo de tempo de 2006 – 2014. Foram considerados estudos experimentais e quase-experimentais, RSL e meta-analises, publicados em português, inglês e espanhol. Resultados: No total 11 estudos foram incluídos na revisão, cinco estudos primários e seis estudos secundários. De entre os estudos primários, todas as intervenções implementadas foram de caráter psicoeducacional e mostraram-se, de um modo geral, mais eficazes na melhoria da perceção do FC quanto à sua competência no desempenho do papel. Os resultados mostraram-se inconclusivos acerca do benefício destas intervenções na diminuição da depressão, da sobrecarga e do stress do FC. Quanto aos estudos secundários, foram vários os tipos de intervenções estudados: intervenções implementadas através da internet; intervenções psicoeducacionais; intervenções de suporte/ aconselhamento; e multicomponentes. A maioria dos estudos avaliaram os resultados depressão/ sintomas depressivos, perceção de competência ou autoeficácia, sobrecarga e qualidade de vida. De uma forma geral, os resultados em que as intervenções de apoio aos cuidadores se mostraram mais eficazes foram a autoeficácia, a sobrecarga e a depressão/ sintomas depressivos. Conclusão: As intervenções psicoeducacionais, pelo impacto que têm e pelo potencial de desenvolvimento de competências no FC, apresentam-se como uma mais valia a longo prazo. A sobrecarga poderá surgir, mas será lícito questionarmos se o processo não será retardado. Importa assim, desenvolver estudos que possam mostrar estas relações.

Una revisión desde la perspectiva de la validez de contenido de los cuestionarios, escalas e inventarios autoaplicados más utilizados en España para evaluar la depresión clínica en adultos

El objetivo del presente estudio fue analizar, desde la perspectiva de la validez de contenido, los cuestionarios, escalas e inventarios autoaplicados más populares en España para evaluar la depresión clínica en adultos. Para ello, se realizó una búsqueda en las bases de datos bibliográficos Psicodoc y PsycINFO que permitió identificar 16 instrumentos muy utilizados en España para ese fin. Estos instrumentos fueron analizados respecto a si el contenido de sus ítems era apropiado para medir los síntomas de las definiciones de episodio depresivo y distimia del DSM-IV y la CIE-10 (relevancia) y respecto a si sus ítems eran proporcionales a los síntomas de tales definiciones (representatividad). Entre los instrumentos analizados, destacaban las diferentes versiones completas del Inventario de Depresión de Beck (BDI-I, BDI-IA y BDI-II), la Escala Autoaplicada de Depresión de Zung (SDS) y la Escala de Depresión del Centro de Estudios Epidemiológicos (CES-D), ya que sus ítems presentaban un mayor grado de relevancia y representatividad del contenido de las definiciones sintomáticas de depresión clínica del DSM-IV y la CIE-10.

Effectiveness of non-pharmacological interventions to prevent falls in older people: a systematic overview. The SENATOR Project ONTOP Series

Background: Falls are common events in older people, which cause considerable morbidity and mortality. Non-pharmacological interventions are an important approach to prevent falls. There are a large number of systematic reviews of non-pharmacological interventions, whose evidence needs to be synthesized in order to facilitate evidence-based clinical decision making. Objectives: To systematically examine reviews and meta-analyses that evaluated non-pharmacological interventions to prevent falls in older adults in the community, care facilities and hospitals. Methods: We searched the electronic databases Pubmed, the Cochrane Database of Systematic Reviews, EMBASE, CINAHL, PsycINFO, PEDRO and TRIP from January 2009 to March 2015, for systematic reviews that included at least one comparative study, evaluating any non-pharmacological intervention, to prevent falls amongst older adults. The quality of the reviews was assessed using AMSTAR and ProFaNE taxonomy was used to organize the interventions. Results: Fifty-nine systematic reviews were identified which consisted of single, multiple and multi-factorial non-pharmacological interventions to prevent falls in older people. The most frequent ProFaNE defined interventions were exercises either alone or combined with other interventions, followed by environment/assistive technology interventions comprising environmental modifications, assistive and protective aids, staff education and vision assessment/correction. Knowledge was the third principle class of interventions as patient education. Exercise and multifactorial interventions were the most effective treatments to reduce falls in older adults, although not all types of exercise were equally effective in all subjects and in all settings. Effective exercise programs combined balance and strength training. Reviews with a higher AMSTAR score were more likely to contain more primary studies, to be updated and to perform meta-analysis. Conclusions: The aim of this overview of reviews of non-pharmacological interventions to prevent falls in older people in different settings, is to support clinicians and other healthcare workers with clinical decision-making by providing a comprehensive perspective of findings.

Time-limited home-care reablement services for maintaining and improving the functional independence of older adults

Background: Reablement, also known as restorative care, is one possible approach to home-care services for older adults at risk of functional decline. Unlike traditional home-care services, reablement is frequently time-limited (usually six to 12 weeks) and aims to maximise independence by offering an intensive multidisciplinary, person-centred and goal-directed intervention. Objectives: To assess the effects of time-limited home-care reablement services (up to 12 weeks) for maintaining and improving the functional independence of older adults (aged 65 years or more) when compared to usual home-care or wait-list control group. Search methods: We searched the following databases with no language restrictions during April to June 2015: the Cochrane Central Register of Controlled Trials (CENTRAL); MEDLINE (OvidSP); Embase (OvidSP); PsycINFO (OvidSP); ERIC; Sociological Abstracts; ProQuest Dissertations and Theses; CINAHL (EBSCOhost); SIGLE (OpenGrey); AgeLine and Social Care Online. We also searched the reference lists of relevant studies and reviews as well as contacting authors in the field. Selection criteria: We included randomised controlled trials (RCTs), cluster randomised or quasi-randomised trials of time-limited reablement services for older adults (aged 65 years or more) delivered in their home; and incorporated a usual home-care or wait-list control group. Data collection and analysis: Two authors independently assessed studies for inclusion, extracted data, assessed the risk of bias of individual studies and considered quality of the evidence using GRADE. We contacted study authors for additional information where needed. Main results: Two studies, comparing reablement with usual home-care services with 811 participants, met our eligibility criteria for inclusion; we also identified three potentially eligible studies, but findings were not yet available. One included study was conducted in Western Australia with 750 participants (mean age 82.29 years). The second study was conducted in Norway (61 participants; mean age 79 years). We are very uncertain as to the effects of reablement compared with usual care as the evidence was of very low quality for all of the outcomes reported. The main findings were as follows. Functional status: very low quality evidence suggested that reablement may be slightly more effective than usual care in improving function at nine to 12 months (lower scores reflect greater independence; standardised mean difference (SMD) -0.30; 95% confidence interval (CI) -0.53 to -0.06; 2 studies with 249 participants). Adverse events: reablement may make little or no difference to mortality at 12 months' follow-up (RR 0.97; 95% CI 0.74 to 1.29; 2 studies with 811 participants) or rates of unplanned hospital admission at 24 months (RR 0.94; 95% CI 0.85 to 1.03; 1 study with 750 participants). The very low quality evidence also means we are uncertain whether reablement may influence quality of life (SMD -0.23; 95% CI -0.48 to 0.02; 2 trials with 249 participants) or living arrangements (RR 0.92, 95% CI 0.62 to 1.34; 1 study with 750 participants) at time points up to 12 months. People receiving reablement may be slightly less likely to have been approved for a higher level of personal care than people receiving usual care over the 24 months' follow-up (RR 0.87; 95% CI 0.77 to 0.98; 1 trial, 750 participants). Similarly, although there may be a small reduction in total aggregated home and healthcare costs over the 24-month follow-up (reablement: AUD 19,888; usual care: AUD 22,757; 1 trial with 750 participants), we are uncertain about the size and importance of these effects as the results were based on very low quality evidence. Neither study reported user satisfaction with the service. Authors' conclusions: There is considerable uncertainty regarding the effects of reablement as the evidence was of very low quality according to our GRADE ratings. Therefore, the effectiveness of reablement services cannot be supported or refuted until more robust evidence becomes available. There is an urgent need for high quality trials across different health and social care systems due to the increasingly high profile of reablement services in policy and practice in several countries.