SPECIAL REVIEWS

PEDIATRICS ◽  
1953 ◽  
Vol 11 (5) ◽  
pp. 549-553
Author(s):  
KENNETH D. ROGERS ◽  
SAMUEL M. WISHIK

Over the last decade or more, pediatricians have become increasingly aware that operative procedures can carry with them psychologic trauma for the child. While it is not to be implied that every operation is a life-shaking experience upon which hinges the future happiness and security of the child, we do know that operations and their attendant events are well remembered by all of us, that they are found to be part of the "meaningful content" of psychiatric exploration, and that the onset of night terrors, disobedience, enuresis, excessive dependence reactions and similar disorders often follow operations. Unquestionably, the exact effect of these experiences on children varies both with the type of experience and with the basic security of the child. Although neurotic symptoms may have their origin in traumatic hospital experience, it is more likely that unfavorable reactions to hospitalization are caused by an activation or reinforcement of anxieties or neurotic trends already present. Unfortunately, there has been a wide discrepancy between the acceptance of these ideas and the modification of present presurgical and surgical managment of the child to conform with them. The reasons are not hard to find, for the child patient has paid the price of specialization in medicine by having his pediatrician discover a condition, the surgeon elect to operate, the hospital nurse and physician manage the preoperating room experience, the anesthetist perform the potentially most upsetting procedure of the whole experience, and all these persons and others manage his postoperative hospital course.

PEDIATRICS ◽  
1974 ◽  
Vol 53 (2) ◽  
pp. 302-304
Author(s):  
R. D. Becker

It is clear that breakthroughs in medical intelligence combined with technological advance and refinement in diagnostic medicine and surgical approach now make possible a host of operative procedures which avert death, rehabilitate function, and under some conditions can even generate outright cures. Corrective surgery for complex multiple congenital malformations or systemic anomolies is indeed now commonplace in the first years of life. However, these operative procedures are not without some attendant psychological risk to the future emotional development of the involved child.


1981 ◽  
Vol 55 (6) ◽  
pp. 967-970 ◽  
Author(s):  
Thoralf M. Sundt ◽  
J. Keith Campbell ◽  
Otis W. Houser

✓ Two cases are reported in which anastomotic procedures between the posterior cerebral and superior cerebellar arteries were useful for the management of occlusive and aneurysmal disease of the posterior circulation. Operative procedures such as these may play a role in the future management of vascular problems in this system.


1961 ◽  
Vol 13 ◽  
pp. 29-41
Author(s):  
Wm. Markowitz
Keyword(s):  

A symposium on the future of the International Latitude Service (I. L. S.) is to be held in Helsinki in July 1960. My report for the symposium consists of two parts. Part I, denoded (Mk I) was published [1] earlier in 1960 under the title “Latitude and Longitude, and the Secular Motion of the Pole”. Part II is the present paper, denoded (Mk II).


1978 ◽  
Vol 48 ◽  
pp. 387-388
Author(s):  
A. R. Klemola
Keyword(s):  

Second-epoch photographs have now been obtained for nearly 850 of the 1246 fields of the proper motion program with centers at declination -20° and northwards. For the sky at 0° and northward only 130 fields remain to be taken in the next year or two. The 270 southern fields with centers at -5° to -20° remain for the future.


Author(s):  
Godfrey C. Hoskins ◽  
Betty B. Hoskins

Metaphase chromosomes from human and mouse cells in vitro are isolated by micrurgy, fixed, and placed on grids for electron microscopy. Interpretations of electron micrographs by current methods indicate the following structural features.Chromosomal spindle fibrils about 200Å thick form fascicles about 600Å thick, wrapped by dense spiraling fibrils (DSF) less than 100Å thick as they near the kinomere. Such a fascicle joins the future daughter kinomere of each metaphase chromatid with those of adjacent non-homologous chromatids to either side. Thus, four fascicles (SF, 1-4) attach to each metaphase kinomere (K). It is thought that fascicles extend from the kinomere poleward, fray out to let chromosomal fibrils act as traction fibrils against polar fibrils, then regroup to join the adjacent kinomere.


Author(s):  
Nicholas J Severs

In his pioneering demonstration of the potential of freeze-etching in biological systems, Russell Steere assessed the future promise and limitations of the technique with remarkable foresight. Item 2 in his list of inherent difficulties as they then stood stated “The chemical nature of the objects seen in the replica cannot be determined”. This defined a major goal for practitioners of freeze-fracture which, for more than a decade, seemed unattainable. It was not until the introduction of the label-fracture-etch technique in the early 1970s that the mould was broken, and not until the following decade that the full scope of modern freeze-fracture cytochemistry took shape. The culmination of these developments in the 1990s now equips the researcher with a set of effective techniques for routine application in cell and membrane biology.Freeze-fracture cytochemical techniques are all designed to provide information on the chemical nature of structural components revealed by freeze-fracture, but differ in how this is achieved, in precisely what type of information is obtained, and in which types of specimen can be studied.


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