منابع مشابه
Time and time again: The many ways to represent time
One of the most crucial problems in any computer system that involves representing the world is the representation of time. This includes applications such as databases, simulation, expert systems and applications of Artificial Intelligence in general. In this brief paper, I will give a survey of the basic techniques available for representing time, and then talk about temporal reasoning in a g...
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cannot claim to be the sole diagnostic agency and must share the prerogative of interpretation with others. Prime examples are specialty-specific diagnostic imaging e.g., for orthopedic specialists and the undisputed authority of other disciplines, such as dentistry, in adapting the imaging material to the case and treatment. The radiologist`s status is inferior to the clinician`s in individual...
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A review of new developments in theoretical and experimental electronic structure investigations of half-metallic ferromagnets (HMF) is presented. Being semiconductors for one spin projection and metals for another ones, these substances are promising magnetic materials for applications in spintronics (i.e., spin-dependent electronics). Classification of HMF by the peculiarities of their electr...
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In this issue, Quach and colleagues report on their singlecenter experience with peritoneal dialysis (PD) catheters placed by radiologists using ultrasound and fluoroscopic guidance, largely as outpatient same-day procedures under local anesthesia [1]. In 30 catheters placed, subsequent migration was noted in four patients and one patient ultimately required surgical intervention. These general...
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ژورنال
عنوان ژورنال: BMJ
سال: 1986
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.293.6550.771