The Variations in Middle and Upper Stratospheric Water Vapour over the Past Two Decades

Changes in Earth's reflectance over the past two decades.

We correlate an overlapping period of earthshine measurements of Earth's reflectance (from 1999 through mid-2001) with satellite observations of global cloud properties to construct from the latter a proxy measure of Earth's global shortwave reflectance. This proxy shows a steady decrease in Earth's reflectance from 1984 to 2000, with a strong climatologically significant drop after 1995. From ...

Childhood leprosy in India over the past two decades.

OBJECTIVES Clinico-epidemiological pattern of childhood leprosy in India over the past two decades were analysed from the Indian studies conducted during the years 1990-2009. RESULTS Twelve studies on childhood leprosy were included. Ten were conducted in health institutions and one was a community-based survey. Voluntary reporting was the principal method of case detection; community survey ...

Rectal cancer: progress over the past two decades.

a synchronic and diachronic approach to the change route of address terms in the two recent centuries of persian language

terms of address as an important linguistics items provide valuable information about the interlocutors, their relationship and their circumstances. this study was done to investigate the change route of persian address terms in the two recent centuries including three historical periods of qajar, pahlavi and after the islamic revolution. data were extracted from a corpus consisting 24 novels w...

diagnostic factors of odontogenic cysts in iranian population: a retrospective study over the past two decades

conclusions the current study showed that clinicians should consider the many factors associated with the occurrence of odontogenic cysts. objectives the current study aimed to evaluate the frequency of odontogenic cysts and related factors in a selected iranian population. patients and methods the current cross-sectional study was conducted on 312 patients’ recorded data in taleghani hospital,...