Results 211 to 220 of about 164,043 (268)
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Photoinhibition – a historical perspective
Photosynthesis Research, 2003Photoinhibition is a state of physiological stress that occurs in all oxygen evolving photosynthetic organisms exposed to light. The primary damage occurs within the reaction center of Photosystem II (PS II). While irreversible photoinduced damage to PS II occurs at all light intensities, the efficiency of photosynthetic electron transfer decreases ...
Noam, Adir +3 more
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2012
Endoscopic surgery has grown slowly, but in parallel with the simultaneous developments of microsurgery and skull-base surgery. In this report, we describe the early innovations in skull-base endoscopic approaches as well as the pioneers who first popularized transsphenoidal surgical approaches.
CAPPABIANCA, PAOLO +2 more
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Endoscopic surgery has grown slowly, but in parallel with the simultaneous developments of microsurgery and skull-base surgery. In this report, we describe the early innovations in skull-base endoscopic approaches as well as the pioneers who first popularized transsphenoidal surgical approaches.
CAPPABIANCA, PAOLO +2 more
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Gastrinomas: A historical perspective
Journal of Surgical Oncology, 2009AbstractThe journey of gastrinomas had its beginnings in 1955 when Zollinger and Ellison published their seminal paper (Zollinger and Ellison, Ann Surg 1955; 142: 709–723). The evolution of the diagnosis and management of this syndrome has paralleled many important advances in medicine, including the development of various diagnostic tools to the major
Meei J, Yeung, Janice L, Pasieka
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Progesterone – Historical perspective
The Journal of Steroid Biochemistry and Molecular Biology, 2022Research leading to the discovery and characterization of progesterone (P4) began in the mid 1800 s and followed a path carved by key discoveries in the burgeoning field of endocrinology. The primary observations leading to the discovery of P4 was that the maternal corpus luteum (CL) is necessary for the establishment and maintenance of pregnancy ...
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Of Time and Historical Perspective
Psychological Reports, 1990Emphasizing the importance of time as the medium for both historical and psychological analysis, this paper traces the ego's consciousness of time from childhood to adulthood. This evolution is climaxed in late adolescence by the development of historical perspective, and thereafter the ego fuses time and history through a form of artistic ...
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Apoptosis: Historical perspectives
Essays in Biochemistry, 2003Apoptosis is one of the most widely studied fields in biology and accounts for over 2% of all life science publications annually. It plays a fundamental role in development, and defects in the regulation of apoptosis are directly implicated in numerous well-known diseases including cancer, neurodegenerative disorders, tissue atrophy and auto-immune ...
James F, Curtin, Thomas G, Cotter
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Necrotizing: A historical perspective
Seminars in Perinatology, 2017Necrotizing enterocolitis is a devastating disease afflicting premature infants, though after 50 years of investigation, the pathophysiology remains elusive. This report describes the possible etiologic factors from a historical perspective, and outlines the importance of human milk, intestinal blood flow, and intestinal blood flow changes from a ...
Michael S, Caplan, Avroy, Fanaroff
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Placebo, a historical perspective
European Neuropsychopharmacology, 2012Substances and interventions with no specific therapeutic effect have been in use since the dawn of history. The term placebo has first been mentioned in the Scriptures, but it was not until the 19th century that it appeared in a medical context. Although lay people like Voltaire, and physicians such as Sir William Osler, have raised the possibility ...
Efrat, Czerniak, Michael, Davidson
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A historical perspective of CSTA
IEEE Communications Magazine, 1996Computer-supported telecommunications applications (CSTA) is one of the more important standards for computer-telecommunications interfaces, addressing service and protocol definitions used to provide a link between computers and telecommunications systems. The services provided on a CSTA link between a telecommunications and computer network work much
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