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Contraception by the end of the 20th century
Human Reproduction, 1994Despite worldwide fertility declines global population continues to grow. Most of the decline in fertility is due to contraceptive use accounting for 80% of the variance in the total fertility rate between countries. Yet some countries have much higher or lower fertility levels than countries with the same contraceptive prevalence levels indicating ...
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The epidemiological revolution of the 20th century
The FASEB Journal, 2005ABSTRACT Until 100 years ago the epidemiological scenario of human diseases had substantially remained unchanged. The 20th century has been characterized by a fantastic advance in life expectancy and by a shift from infectious to chronic degenerative diseases as prevailing causes of death.
DE FLORA, SILVIO +3 more
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Nasal Tuberculosis in the 20th Century
The American Journal of the Medical Sciences, 1997During the last decade, tuberculosis has reemerged as a major health problem in the United States. Much of the blame for this resurgence has been attributed to human immunodeficiency virus infection, although homelessness and deterioration of the social infrastructure have also been implicated.
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Futures, 1992
Abstract As I.F. Clarke noted at the start of this series, new technologies and the growth of populations were the primary factors that encouraged the first speculations about ‘the progress of society’ in the 19th century. In the 20th century an ever-growing body of trend analysts and forecasters has sought to keep pace with the accelerating speed of
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Abstract As I.F. Clarke noted at the start of this series, new technologies and the growth of populations were the primary factors that encouraged the first speculations about ‘the progress of society’ in the 19th century. In the 20th century an ever-growing body of trend analysts and forecasters has sought to keep pace with the accelerating speed of
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Public Utilities in the 20th Century
2010La storia delle imprese municipali italiane prende avvio nel 1903 in seguito alla legge sulla municipalizzazione e si estende ad ogni servizio urbano fino alla nascita delle grandi attuali ...
S. Fari, GIUNTINI, Andrea
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Abstract Only three individuals held the Savilian Professorship of Astronomy between 1894 and 1988: Herbert Turner (from 1894 to 1930), Harry Plaskett (from 1932 to 1960), and Donald Blackwell (from 1960 to 1988). Yet, during this same period, astronomy changed beyond recognition.
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Rejuvenation in the early 20th century
Andrologia, 2009The first theoretical reflections concerning the relation of hormone production with the ageing process stemmed from Charles Edouard Brown-Séquard (1817 1894). At the age of 72 years he experimented on himself with an injection of animal testicular extract.
D, Schultheiss, J, Denil, U, Jonas
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Psychophysiology by the end of the 20th century
International Journal of Psychophysiology, 2000The first real breakthrough in the research of brain organization and thinking in the 20th century was made in neurophysiological investigations performed in direct contact with different sites of the brain, which became possible in diagnosis and treatment. The second breakthrough is happening at present.
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Mechanics of the Lung in the 20th Century
Comprehensive Physiology, 2011Abstract Major advances in respiratory mechanics occurred primarily in the latter half of the 20th century, and this is when much of our current understanding was secured. The earliest and ancient investigations involving respiratory physiology and mechanics were frequently done in conjunction with other ...
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