This paper investigates whether and to what extent demographic change has an impact on human capital accumulation. The effect of relative cohort size and cohort composition on educational attainment of young adults in Germany is analyzed utilizing data from the German Socio-Economic Panel for West-German individuals of the birth cohorts 1962 to 1986. These are the cohorts which entered the labo...

Intense competition for majority party control—a continuous reality since the Republican Party won control of the Senate in 1980—has transformed Senate floor politics. This article shows how minority party senators have exploited floor amendments for partisan purposes to a much greater extent in the post-1980 period than in the past. During the 1960s and 1970s, floor activism was a function of ...

The evolution of surface topography of glaciers in the Swiss Alps is well documented with high-resolution aerial photographs repeatedly recorded since the 1960s and further back in time with topographic maps including elevation contour lines first surveyed in the mid-19th century. In order to quantify and interpret glacier changes in the Swiss Alps, time series of volume changes over the last 1...

OBJECTIVES To analyse consecutive patients with RA in usual rheumatology care between 1980 and 2004 at two settings for the proportion of patients taking MTX, interval from patient presentation to MTX prescription and radiographic and functional status outcomes. METHODS Longitudinal study of all patients seen in usual care between 1980 and 2004, 1982 consecutive patients in Jyväskylä, Finland...

Hydrogenase [hydrogenase: (acceptor) oxidoreductase, EC 1.12. . -1 is present in many bacteria. It is one of the enzymes having potential use in the biophotolysis of water (Weaver et al.. 1980). When we began our research on hydrogenase in 1977, two types of enzymes were known: (i) enzymes containing 12 Fe atoms and an equivalent amount of acid-labile S atoms and (ii) enzymes containing only fo...

Adults born between 1966 and 1980 are at higher risk of measles, mumps and rubella, due to relatively low levels of immunity. Adults born before 1966 have probably been exposed to wild virus, and those born since 1980 have probably received two doses of measles, mumps, rubella (MMR) vaccine. Those born between 1966 and 1980 may not have had two doses because of changes in the immunisation sched...

Since its inception as a diagnostic category in 1980, the definitional criteria for generalized anxiety disorder (GAD) have been revised substantially in each edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM). In DSM-III (American Psychiatric Association, 1980), GAD was a residual category (i.e., diagnosis was permitted only if criteria were not met for any other Axis I...