[Self-help group in health: solidarity partnership and request]. / Groupes d'entraide et santé: solidarité, partenariat et revendication.

In the last decades, mutual self-help groups in health have become increasingly popular. The renewal of psychiatric care after the Second World War, the development of social psychiatry in the sixties, the emergence of a general social emancipatory movement, and the implementation of patients' rights, all these changes favored the diffusion of mutual self-help groups in developed countries. These groups have in general no hierarchical relationship between helpers and helped persons; group participation is free, their members share common experiences and attach great importance to experimental knowledge. These groups can have different member types: patients; health professionals; family members or significant others. As these groups are becoming well-known, they favor a new relationship between patient, medical and political authorities.

Private psychiatry in Switzerland.

INTRODUCTION: Two-thirds of Swiss psychiatrists are engaged, either exclusively or partially, in private practice, a proportion that is higher than in other countries. METHOD: A questionnaire survey of 1000 psychiatrists was carried out. RESULTS: Psychiatrists in private practice display a greater degree of clinical activity, mainly with individuals, than do psychiatrists employed by public institutions; and they work principally within two practice profiles, psychoanalytical and generalist, and much less in the biological profile. They show a preference for the psychological model, mostly in a psychoanalytical orientation. Psychiatrists who have a mixed privatepublic practice - more than half of them - are even more psychoanalytically oriented than psychiatrists working exclusively in private practice. They act as an interface between the public and private sectors, playing a pivotal role as guardians of psychoanalysis, proclaiming its principles to psychiatric residents. CONCLUSION: With the transformations taking place in the health care system, new care concepts are being developed, there is a wider variety of theoretical orientations, and the profession is therefore undergoing substantial changes. ( Int J Psych Clin Pract 2000; 4: 227 - 232).

[Professional practice and theoretical orientation of women and men psychiatrists]. / Pratiques et orientations théoriques des femmes et des hommes psychiatres.

RESEARCH QUESTIONS: Differences between male and female psychiatrists in their careers, professional and clinical activities, and clinical orientations, in general and in contrasted settings for the practice of psychiatry. METHODS: Survey by mailed questionnaire to psychiatrists working in private practice or in institutions. RESULTS: Male and female psychiatrists share some similar characteristics (age, many interests, etc.). However, female psychiatrists differ from male psychiatrists in numerous respects: more frequently engaged in private practice, shorter work-weeks, less diversification of clinical activities, more frequent reference to a psychological model. In women occupying hierarchic positions, these differences disappear, whilst they are maintained in private practice for those using the psychological model. The differences can be interpreted in part in terms of gender-specific socialization, but their origin could mainly arise from the existence of different systems of gender-based constraints in the management of professional and personal, or family, spheres. CONCLUSIONS: Adjusting the training period and working conditions in institutions could facilitate career diversification for both male and female psychiatrists.

The Flin Flon paleosol and the composition of the atmosphere 1.8 BYBP.

Within the 1800 to 1900 my old Flin Flon-Snow Lake greenstone belt, Amisk Group volcanics are overlain by Missi Group fluvial sediments. Several localities along the Missi-Amisk contact, the volcanics show evidence of subaerial weathering. Field relationships, mineralogical evidence, and chemical analyses confirm that this alteration zone is a paleosol. Pedogenic fabrics and mineralogy were somewhat obscured by greenschist-grade metamorphism associated with the Hudsonian orogeny (1750 my). This is especially true in the upper meter of the paleosol, where metamorphic paragonite and sericitic micas developed in a crenulated fabric. This metamorphism did not, however, obliterate the imprint of weathering on the Amisk volcanics. Features characteristic of well-drained modern soils are evident in the paleosol. Corestones of spheroidally weathered pillow lavas occur at depth within the paleosol (Cr horizon). The corestones decrease in size upward and eventually disappear into a hematite-rich horizon at the top of the paleosol. These macroscopic changes are accompanied by a decrease in CaO and MgO and by an increase in Al2O3, TiO2, and total iron toward the paleosol-Missi contact. Ferrous iron decreases upward toward the contact; FeO was apparently oxidized to ferric iron and retained within the paleosol during weathering. The oxidation and retention of iron within the Flin Flon paleosol indicates that PO2 was probably > or = 10(-2) P.A.L. at the time of weathering. The behavior of iron in the Flin Flon paleosol contrasts sharply with its behavior in the 2200 my Hekpoort paleosol, which is strongly depleted in iron. This difference suggests that a significant increase in the ratio of PO2/PCO2 in the atmosphere took place between 2200 and 1800 mybp.

Ordovician paleosols at Arisaig, Nova Scotia, and the evolution of the atmosphere.

A series of Late Ordovician andesite flows are exposed along the coastline near Arisaig, Nova Scotia. Field relationships, textural and mineralogical evidence, and chemical analyses of three interflow units confirm that they are paleosols. The chemical variations observed in these paleosols are quite similar to those of modern soils developed on mafic volcanic rocks. Virtually all of the iron in the paleosols was oxidized and retained during weathering; however, in two of the three paleosols a small fraction of the ferrous iron escaped oxidation and was precipitated near the base of the paleosols. This redistribution of ferrous iron may reflect the presence of nonvascular land plants. The variations in the concentration of the major oxides produced by weathering of the andesites at Arisaig are consistent with the probable lower limit of 0.04 atm for the partial pressure of O2 in the atmosphere during the Late Ordovician. The current data base for Paleozoic and Precambrian paleosols indicates that a significant increase in the PO2/PCO2 ratio in the atmosphere took place about 2.0 x 10(9) years ago; since then the ratio of PO2/PCO2 in the atmosphere has been high enough to oxidize all of the iron in soils developed on igneous rocks.

The Sturgeon Falls paleosol and the composition of the atmosphere 1.1 Ga BP.

A paleosol is exposed along the north bank of the Sturgeon River, some 25 km SW of Baraga, Michigan. The paleosol was developed on hydrothermally altered Keweenawan basalt and is overlain by the Jacobsville sandstone. Textures, mineralogy, and chemical composition change gradually upwards from unweathered metabasalt, through the paleosol, to the contact of the paleosol with the Jacobsville sandstone. Many of these changes are similar to those in modern soils developed on basaltic rocks. However, K has clearly been added to the paleosol, probably by solutions which had equilibrated with K-feldspar in the Jacobsville sandstone. The Keweenawan basalt was oxidized quite extensively during its conversion to greenstone. During weathering, the remaining Fe2+ was oxidized to Fe3+ and was retained in the paleosol. The composition of the parent greenstone and its change during weathering can be used to define an approximate lower limit to the ratio of the O2 pressure to the CO2 pressure in the atmosphere during the formation of the paleosol [formula: see text]. Free O2 must have been present in the atmosphere 1.1 Ga ago, but its partial pressure could have been 10(3) times lower than in the atmosphere today.

[Health education in Switzerland: first analysis of topics covered by the institutions]. / L'éducation pour la santé en Suisse: première analyse des thèmes traités par les institutions.

This paper reports a survey of 454 institutions working in the field of health education. The 3 directions of the investigation are the topics covered by health education programs, the target-populations and the geographical coverage. This preliminary study discusses the concept of health conveyed by the institutions from a quantitative and a qualitative point of view.