Parental disclosure of child psychosocial concerns: Relationship to physician identification and management

Background: physician identification and management of psychosocial problems in children is related to parental disclosure. The purpose of this research was to evaluate a method of prompting parental disclosure of such problems and to determine the impact of parental disclosure on family physicians' identification of and intervention for childhood psychosocial problems.Methods: participants were parents and physicians of 60 children between the ages of 3 and 10 years attending an ambulatory care clinic of a community-based, university-affiliated family medicine training program. Parents completed the Child Behavior Checklist and also indicated whether psychosocial problems were discussed or managed. Physicians completed a checklist about the psychosocial status of the child and potential interventions for identified problems. One half of the participating parents formed the experimental group and were also asked to note their concerns on a Psychosocial Checklist for Children and to discuss these concerns with their child's physician; the other half of parents received no such checklist and acted as the control group. All interactions between parents and physicians were videotaped.Results: the number of parental psychosocial disclosures, but not the number of parents who disclosed them, was significantly higher for the experimental group. Physicians were three times as likely to identify a psychosocial problem and 10 times as likely to intervene when parents discussed psychosocial concerns.Conclusions: parents' disclosure of psychosocial concerns to their child's physician increases the likelihood of physicians identifying and intervening for these problems. The finding that physicians intervened for psychosocial problems even when they failed to record these problems suggests that research needs to focus on measuring both intervention and identificatio

Compactação do solo na cultura do feijoeiro. I: efeitos nas propriedades físico-hídricas do solo Soil compaction in a bean crop. I: effects on soil physical and water properties

O problema de compactação do solo vem aparecendo sistematicamente na região do Cerrado, onde os sistemas convencionais de manejo do solo têm causado desagregação excessiva da camada arável, o encrostamento superficial e a formação de camadas coesas ou compactadas (pé-de-grade ou pé-de-arado). Como alternativa, os agricultores adotaram o Sistema Plantio Direto; entretanto, em várias situações vêm sendo relatadas ocorrências de aumento da densidade do solo e diminuição da macroporosidade, o que tem sido diagnosticado como compactação, fazendo com que o agricultor seja obrigado a movimentar o solo. Este trabalho teve por objetivo verificar como a compactação do solo afeta as suas propriedades físicas e de transmissão de água. Para isto, utilizaram-se colunas de solo compactadas artificialmente, para produzir densidades do solo de 1,0; 1,2; 1,4 e 1,6 kg dm-3. As propriedades de transmissão de água foram determinadas com infiltrômetros de tensão, para as cargas de pressão de -0,5; -2,0 e -6,0 cm de água. O aumento da densidade do solo aumentou sua resistência à penetração e reduziu linearmente a porosidade total e a macroporosidade. Houve ainda, redução no tamanho dos poros para o fluxo de água, reduzindo a condutividade hidráulica do solo. Esta redução foi mais acentuada na maior carga de pressão testada. Com a carga de pressão de -2,0 cm de água, a redução no tamanho dos poros foi parcialmente compensada com aumento do seu número. O método do infiltrômetro de tensão mostrou-se adequado em distinguir diferenças nas propriedades de transmissão de água de um solo submetido a diferentes níveis de compactação.<br>Soil compaction is a problem in the Savanna region, where conventional soil tillage systems have caused excessive disaggregation of the arable layer, superficial crusts, and compacted subsuperficial layers. As an alternative, the farmers have adopted the no-tillage system. However, in various situations, an increase of soil bulk density and a decrease of macroporosity has been observed. This process is diagnosed as soil compaction and requires from the farmers the turnover of the soil. This work has the objective to verify how soil compaction affects physical and water transmission properties of soil. Artificially compacted soil columns were used to provide soil bulk densities of 1.0; 1.2; 1.4; and 1.6 kg dm-3. Water transmission properties were determined with tension infiltrometers at pressure heads of -0.5; -2.0; and -6.0 cm of water column. Increasing soil bulk density increased soil resistance to penetration and reduced linearly soil porosity and macroporosity. The flow-weighted mean pore size was reduced too decreasing soil hydraulic conductivity. This reduction was more pronounced at higher pressure heads. The reduction in pore size was partially compensated with the increase in the number of pores, at a pressure head of -2.0 cm of water. The method of tension infiltrometer was adequate to distinguish differences in water transmission properties of a soil submitted to different levels of compaction