K Kumpulainen — Page 2

PubMed1997

Should depression in young school-children be diagnosed with different criteria?

In a two-stage epidemiological study 5686 randomly selected 8 to 9-year-old children were screened using the CDI (Children's Depression Inventory), of whom 418 were questioned with the DISC-C1 (Diagnostic Interview Schedule for Children). According to DSM-III criteria the prevalence of MDD (Major Depressive Disorders) was 0.48% and of DD (Dysthymic Disorder) 0.06%. The prevalence rates did not change when DSM-III-R and DSM-IV criteria were employed. Fifteen children reported suicidal thoughts but according to DSM-III criteria only 1 of these children was depressed. Duration and frequency of depressive symptoms are essential for making a diagnosis of depressive disorder by the DSM-III, but children's reliability in reporting them is questionable. Omitting the duration and frequency of symptoms from the DSM-III criteria raised the prevalence of MDD to 4.0% and of DD to 2.2%. Eight of the children with suicidal thoughts were depressed. By the adapted DSM-III-R and DSM-IV criteria the prevalence rate of MDD was 4.0% and of DD 9.7%.

Child↗

PubMed1997

The persistence of psychiatric disturbance among children.

This study assessed the persistence of psychiatric disturbance and factors associated with it. The material consisted of the Rutter A2 Scale the Rutter B2 Scale and the Children's Depression Inventories (CDI) of 1268 children completed respectively by parents, teachers and the children themselves. Three questionnaires were filled out twice, with an interval of 4 years. The mean scores obtained from the questionnaires were lower for both boys and girls in study 2 than in study 1. Differences between genders in both studies were most prominent when information given by teachers was used. Children screened as disturbed in study 1 were clearly more prone to be disturbed in study 2 as well. The risk varied between 5- and 8.8-fold when the same assessment method was used in both studies. Another variable clearly connected with disturbance in study 2 was psychiatric consultation reported by the parents. The sex of the child also proved to be important when the disturbance was assessed using the information given by the teacher.

Child↗

PubMedDate not supplied

A sophisticated lander for scientific exploration of Mars: scientific objectives and implementation of the Mars-96 Small Station.

A mission to Mars including two Small Stations, two Penetrators and an Orbiter was launched at Baikonur, Kazakhstan, on 16 November 1996. This was called the Mars-96 mission. The Small Stations were expected to land in September 1997 (Ls approximately 178 degrees), nominally to Amazonis-Arcadia region on locations (33 N, 169.4 W) and (37.6 N, 161.9 W). The fourth stage of the Mars-96 launcher malfunctioned and hence the mission was lost. However, the state of the art concept of the Small Station can be applied to future Martian lander missions. Also, from the manufacturing and performance point of view, the Mars-96 Small Station could be built as such at low cost, and be fairly easily accommodated on almost any forthcoming Martian mission. This is primarily due to the very simple interface between the Small Station and the spacecraft. The Small Station is a sophisticated piece of equipment. With the total available power of approximately 400 mW the Station successfully supports an ambitious scientific program. The Station accommodates a panoramic camera, an alpha-proton-x-ray spectrometer, a seismometer, a magnetometer, an oxidant instrument, equipment for meteorological observations, and sensors for atmospheric measurement during the descent phase, including images taken by a descent phase camera. The total mass of the Small Station with payload on the Martian surface, including the airbags, is only 32 kg. Lander observations on the surface of Mars combined with data from Orbiter instruments will shed light on the contemporary Mars and its evolution. As in the Mars-96 mission, specific science goals could be exploration of the interior and surface of Mars, investigation of the structure and dynamics of the atmosphere, the role of water and other materials containing volatiles and in situ studies of the atmospheric boundary layer processes. To achieve the scientific goals of the mission the lander should carry a versatile set of instruments. The Small Station accommodates devices for atmospheric measurements, geophysical and geochemical studies of the Martian surface and interior, and cameras for descent phase and panoramic views. These instruments would be able to contribute remarkably to the process of solving some of the scientific puzzles of Mars.

Atmosphere↗