منابع مشابه
Chemical “ Substances ” That Are Not “ Chemical Substances ”
The main scientific problems of chemical bonding were solved half a century ago, but adequate philosophical understanding of chemical combination is yet to be achieved. Chemists routinely use important terms (“element,” “atom,” “molecule,” “substance”) with more than one meaning. This can lead to misunderstandings. Eliminativists claim that what seems to be a baseball breaking a window is merel...
متن کاملLipotropic Substances *
Lipotropic action of choline In 1924 Allan, Bowie, Macleod, and Robinson' reported that depancreatized dogs receiving adequate amounts of insulin and maintained on a diet of lean meat, sucrose, and bone ash did not survive for periods of longer than a few months. They also observed that symptoms of failure of liver function due to fat infiltration of the liver found in such animals could be pre...
متن کاملPectic Substances
Pectins are a group of plant polysaccharides whose principal component is 1,4-linked a-d-galactosyluronic acid (O’Neill et al., 1990). Pectins are present in the primary cell walls of all seed-bearing plants and in the junction between cells called the middle lamella. The primary wall surrounds growing plant cells, meristematic cells and cells in succulent tissue such as fruit. The secondary wa...
متن کاملBorderline personality disorder
It is refreshing to read a generally positive and optimistic editorial about borderline personality disorder and its long-term prognosis (Fonagy & Bateman, 2006). It is also reassuring to find the authors speculating about an issue long recognised by users of personality disorder services, that is, the ‘reality of iatrogenic harm’. We feel, however, that there is a worrying element to this piec...
متن کاملSome Borderline Psychiatric Conditions
No books have been written on this subject and it is the rare textbook which does more than nod acquaintance with one or several of the terms to be mentioned. The commonly used diagnostic and statistical classifications are equally unhelpful, as are Psychiatric dictionaries. Thus we are dealing with a vague and complex area which seems to have provoked over the years an astonishing terminologic...
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ژورنال
عنوان ژورنال: BMJ
سال: 1978
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.2.6148.1371-a