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1.
Between June 1983 and March 1992, we performed a capsular reconstruction procedure through an anterior approach in ten patients (ten shoulders) who had multidirectional laxity of the shoulder and symptomatic atraumatic posterior glenohumeral instability. The procedure included closure of the capsule in the rotator interval and imbrication of the anterior, inferior, and posteroinferior aspects of the capsule by a double-breasting technique that decreases the overall capsular volume. The mean duration of follow-up was sixty months (range, twenty-four to 103 months). According to the system of Rowe and Zarins, the result was graded as excellent for five shoulders, good for four, and poor for one. On the basis of our results, we recommend capsular reconstruction through an anterior approach only in patients who have persistent multidirectional laxity and symptomatic atraumatic posterior instability of the shoulder despite participation in an intensive rehabilitation program.  相似文献   

2.
This critical review of the published literature on dental materials for the year 1996 has been compiled by the Dental Materials Panel of the UK. It continues the series of annual reviews started in 1973 and published in the Journal of Dentistry. Emphasis has been placed upon publications which report upon the materials science or clinical performance of the materials. The review has been divided by accepted materials classifications (fissure sealants, glass polyalkenoate cements, dentine bonding, dental amalgam, endodontic materials, casting alloys, resin-bonded bridges and ceramo-metallic restorations, ceramics, denture base resins and soft lining materials, impression materials, implants materials, orthodontic materials, biomechanics and image processing, resin composites and casting investment materials and waxes). Three hundred and thirteen articles have been reviewed.  相似文献   

3.
1. The metabolism of 1-(2-methoxyphenyl)-2-methyl-2-(3-pyridyl)-1-propanone (2-MPMP) was studied in the male Sprague-Dawley rat after 50 mg/kg, i.v. dose. 2. Organic solvent extracts of urine samples were directly analysed by reversed-phase gradient hplc. The identified metabolites were also isolated by preparative tlc, and analyzed by direct probe mass spectrometry. In the case of conjugated metabolites, the urine samples were deconjugated by enzyme hydrolysis prior to extraction. The structures of metabolites were confirmed by comparison of their chromatographic behaviours, UV spectra, and mass spectra with those of authentic standards. 3. The metabolites identified in the 0-24-h urine samples were 2-hydroxyphenyl-metyrapone (2-OHPMP) and 2-hydroyphenylmetyrapone N-oxide (2-OHPMP-NO), which were present predominantly as their glucuronide and/or sulphate conjugates. 4. 2-MPMP and four of its metabolites present in the 0-24-h urine samples were quantified by a reversed-phase hplc method. The mean total urinary excretion was 75.4% of the administered dose. The major metabolites present in the urine were conjugates of 2-OHPMP-NO (54.4%) and of 2-OHPMP (18.6%). The excretion of the unchanged drug, unconjugated 2-OHPMP and 2-OHPMP-NO accounted for 1.1, 1.1 and 0.2% of the dose respectively.  相似文献   

4.
The first attempted human orthotopic liver transplantation, in 1963, involved a child with biliary atresia, who died on the operating table as a result of uncontrollable coagulopathy. Improvements in immunosuppression, surgical technique, medical imaging and postoperative care, as well as more stringent patient selection, have allowed the development of liver transplantation and its universal acceptance as the treatment for a variety of liver diseases. The radiologist plays a major role in the multidisciplinary transplantation team and must be familiar with each stage of orthotopic liver transplantation and its associated complications. In the first article of this series (Can Assoc Radiol J 1997;48[3]: 171-178), the authors reviewed the anatomic features and current concepts relevant to orthotopic liver transplantation. In the second article (Can Assoc Radiol J 1997;48[4]: 231-242), they discussed the vascular and biliary complications of the operation. This, the third and final article in the series, covers the medical complications.  相似文献   

5.
1986年在东北大学的访问为我提供了一次介绍和讨论超塑性这一科学问题的机会.现在,三十年已经过去,在此我们对这个科学领域的发展做以回顾与展望..  相似文献   

6.
We present a gridded genomic library of the honey-bee (Apis mellifera) for comparative and basic genetic study of the honeybee genome. The library will be established as a "Reference Library" system, and clones as well as data will be shared with the entire scientific community. This will accelerate the molecular level of honeybee genetics, combining the efforts of different laboratories. Because of male haploidy and the high rate of recombination, the honeybee is becoming a model organism for genomic studies of naturally occurring traits and behavioral genetics. The library consists of about 110,000 clones spotted at high density onto four filter membranes, representing 22 genome equivalents. Preliminary analysis using single-copy sequences revealed a positive clone number of the same order. The techniques for library generation and preliminary analysis as well as library access are described.  相似文献   

7.
The first attempted human orthotopic liver transplantation, in 1963, involved a child with biliary atresia, who died on the operating table as a result of uncontrollable coagulopathy. Improvements in immunosuppression, surgical technique, medical imaging and postoperative care, as well as more stringent patient selection, have allowed the development of liver transplantation and its universal acceptance as the treatment for a variety of liver diseases. The radiologist plays a major role in the multidisciplinary transplantation team and must be familiar with each stage of orthotopic liver transplantation and its associated complications. In the first article of this series (Can Assoc Radiol J 1997;48[3]:171-178), the authors reviewed the anatomic features and current concepts relevant to orthotopic topic liver transplantation. In this, the second article, they discuss the vascular and biliary complications of the operation, and the third article will cover the medical complications.  相似文献   

8.
The possible links between personality psychology and psychopathology are examined with the goal of understanding the constraints that set boundaries to the possible contributions of one to the other. The reciprocal nature of these contributions is described. The historical survey looks at the early concepts of the humors and temperament; at the concept of a general vulnerability to psychosis and deviance, represented by the 19th-century concept of degeneracy; and at later typologies arising from the work of H. J. Eysenck, Freud, E. Kretschmer, Pavlov, and W. H. Sheldon. The impact of current developments in neuropsychology and in cognitive psychology is discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

9.
Describes diagnostic indicators that distinguish psychological from physiological encopresis. A behavioral definition of psychogenic encopresis is presented, and 4 treatment approaches to this problem are examined: (a) psychoanalytic, (b) medical, (c) behavioral, and (d) a combination of medical and behavioral. Evidence suggests that approaches (c) and (d) yield the most effective and efficient results. (33 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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The anomaly of dens evaginatus manifests itself as an innocuous-looking tubercle of enamel on the occlusal surface of a premolar tooth. Problems can arise when the tubercle is either worn, ground, or fractured off, resulting in pulpal exposure and possible loss of vitality of the tooth. Orthodontists should be particularly aware of this dental anomaly, which occurs in at least 2% of the Asian and Native Indian population. Premolar extraction cases should be planned to include extraction of the anomalous premolars instead of the normal ones. In addition, the orthodontist should be wary of occlusal changes during treatment or occlusal equilibration that might jeopardize the vitality of teeth with dens evaginatus. Pulp-capping or partial pulpotomy has been postulated as the most reliable form of treatment to prevent loss of vitality of the affected teeth and to allow continued root maturation where necessary.  相似文献   

13.
Medical problems associated with prematurity are frequently complex, and a multidisciplinary approach is often required. Some common problems include the following: (1) anemia, which can be reduced by iron supplementation, (2) cerebral palsy or mental retardation as a result of intraventricular hemorrhage or periventricular leukomalacia, (3) respiratory problems, including bronchopulmonary dysplasia and apnea, (4) visual problems, such as those associated with retinopathy of prematurity, (5) gastroesophageal reflux and (6) surgical problems, including inguinal or umbilical hernia and cryptorchidism. Monitoring of growth and development includes recording the infant's head circumference, weight and length on a growth chart for premature infants. Nutritional status should be assessed at each visit, watching for hyperosmolar problems in infants receiving high-calorie formulas. Consultation with other specialists may be required if abnormalities are identified during follow-up care in the office.  相似文献   

14.
An examination of the writings of 19th and early 20th century comparative psychologists such as G. J. Romanes (1883, 1888) and C. L. Morgan (1903, 1923) indicates that they were well aware of many of the issues raised by the recent "cognitivism" in psychology and ethology. A survey completed by 349 Ss in undergraduate ethology classes, an animal behavior conference, and meetings on creationism on attitudes concerning mental continuity between humans and nonhumans showed that emotional continuity was considered more likely than intellectual continuity and that acceptance of evolution favorably disposed Ss to both. Critical anthropomorphism often aids in formulating testable hypotheses, but cognitive approaches to animals are in danger of suffering a fate similar to the earlier comparative mentalism. (88 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

15.
OBJECTIVE: To review the literature over the past decade on mental retardation, particularly with respect to genetics and behavioral phenotypes. METHOD: A computerized search was performed for articles published in the past decade, and selected papers were highlighted. RESULTS: The study of mental retardation has benefited considerably by advances in medicine generally, and by developments in molecular neurobiology in particular. These advances in genetics have led to new insights regarding the causes of mental retardation, as well as a growing appreciation of behavioral phenotypes associated with some mental retardation syndromes. CONCLUSIONS: Although the study of developmental disorders has advanced significantly over the past decade, considerable work remains. Mental retardation should remain the model for the utility of the biopsychosocial approach in medicine.  相似文献   

16.
This paper reviews the treatment alternatives for acute and chronic lateral ankle ligament sprains. Inadequately treated ankle sprains can result in chronic lateral ankle instability, disabling pain, and the early onset of osteoarthritis. There are a multitude of reconstructive techniques used for chronic lateral ankle instability. Morbidity associated with present techniques includes loss of proprioception, stiffness following cast immobilization, loss of subtalar motion, loss of internal rotation of the talus during ankle plantar flexion, and recurrent instability. In addition, this paper reviews the reconstructive techniques used for chronic lateral ankle instability, addresses the shortcomings of current reconstructive techniques, and proposes alternatives that may help decrease associated morbidity.  相似文献   

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Earlier psychoanalytic thinkers, with their humanistic orientations, anticipated Heinz Kohut's theories and, therefore, contributed to the historical evolution of self psychology. Carl Rogers, a founder of humanistic psychology in the US, was a theorist who struggled with many of the same issues as Kohut. Rogers had new ways of looking at therapy, and especially at the therapeutic ambience, ways that foreshadowed the discoveries of Kohut. This article discusses areas of compatibility of the 2 theorists, such as their focus on empathy and the self, to encourage a rapprochement between humanistic psychotherapy and self psychology. Kohut revolutionized psychoanalysis by making it more humanistic. In that revolution, many of Rogers's empirically tested ideas were incorporated into a comprehensive psychoanalytic theory and clinical method. Because of the areas of mutual concerns and overlap, a fuller appreciation of Rogers's important ideas will be beneficial to self psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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Finding the best treatment for a patient's migraine is often a problem in clinical practice since the condition is very common, often debilitating and may prove refractory to therapy. Over recent years, more effective migraine treatments have been found and validated, and the traditional remedies have undergone controlled testing. This article reviews the various therapies available for both the acute treatment and prevention of migraine. Treatments often effective against migraine attacks are: aspirin, analgesics, non steroid anti-inflammatory drugs (NSAIDs), ergot derivatives and sumatriptan. Five main classes of prophylactic drug are currently used: beta-blockers, calcium antagonists, serotonin modulators, NSAIDs and ergot compounds. Biofeedback, one of the most efficacious non-pharmacological preventive treatments of migraine, is also discussed. The variables influencing the choice of acute and preventive treatments, including contraindications and drug availability, are also described in order to provide a practical and up-to-date guide to migraine therapy.  相似文献   

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