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1.
AIM: In order to assess their undertook a retrospective study in their department over a 4 year period: from January 1991 to December 1994. METHOD: the study concerned 129 patients who were treated by cerclage. This procedure was performed prophylactically in the great majority of them (97), while it was carried out as an emergency in 32 (25%). RESULTS: the authors drew a distinction between two groups (prophylactic and emergency suture) when analyzing the various results: complications due to suture, mean age of pregnancy at delivery, threatened premature labor, mean length of prolongation obtained. These personal data formed the basis of a review of the literature, in order to specify the indications for suture adopted by various authors at the present time. CONCLUSION: the authors found themselves to be in agreement with data from the literature, considering a history of at least two obstetric accidents (late abortions) and/or the existence of a severe uterine malformation to be the principal indication for prophylactic suture. "Emergency" suture should be performed whenever there is a serious threat of early premature labor in the presence of cervical changes such that suture offers the only chance of prolonging the pregnancy.  相似文献   

2.
In recent years, identifying the origins of medical errors has been aided by a growing awareness that such errors are frequently the result of flaws in the system. In short, they are "accidents waiting to happen." Despite the value of the systems approach in identifying and preventing errors, it creates a difficult ethical problem for medical educators. Evidence suggests that when physicians ascribe errors to systemic causes, they may be less likely to modify their future behaviors and thus will be more likely to repeat past errors. Therefore, academic medical centers (i.e., teaching hospitals) must achieve a delicate balance that protects patients from the error that a systems approach can identify, yet provides optimal education for house officers by teaching them to focus also on personal reasons for errors. The authors suggest that this balance can be achieved by having residency programs work aggressively to remove the obstacles that house officers predictably encounter when they look for the personal causes of error (e.g., being shamed, feeling fear and inadequacy). Programs must also encourage house staff to disclose their errors and make constructive changes in their own behaviors, encouraged and guided by role models. The article concludes with discussion of these and related strategies to achieve the desired balance between the use of a systems approach and a personal-responsibility approach to managing errors in academic medical centers.  相似文献   

3.
A structural-sociological approach to suicide research holds that an aggregate-level cause of suicide should correlate with the suicide rates in a population. In 1980, Sainsbury, Jenkins, and Levey published the article "The Social Correlates of Suicide in Europe" which related the suicide rates in 1961-63 and the changes in them in the following 11 years to 15 social variables in 18 European countries. Its main findings were that the changes in suicide rates could be attributed to specific changes in the social environment. Complementary discriminant analyses showed that it was possible accurately to divide the countries into low- and high-change suicide rate groups on the basis of a combination of the social variables. Although criticized for its method, the study has been widely quoted and sometimes presented as the most definitive current study on the subject. In order to see whether its results held for similar data 16 years later it was replicated for 1977-79 and the ensuing 11 years, with data and method as similar as possible to the original. The results agreed with those of the original study on only one point: the correlations between the levels of the social variables and those of the suicide rates were similar in both periods. However, changes in the suicide rates were unrelated to either the levels of the social variables or the changes in them: correlations found in the original study tended to change profoundly or disappear. Moreover, the results of the original discriminant analyses were a property of the method employed and thus independent of the data. Statistical artefacts or social processes such as changing expectations are unlikely to explain the suddenly changing or vanishing correlations. The original correlations seem to have been largely spurious and dependent on the fact that the more modern countries in Europe experienced a "suicide boom" in the 1960s. As the boom waned in these, it was beginning in the less modern countries: the correlations between the processes indicated by the social variables and the suicide rates were reversed or disappeared. The results call the existence of clear relations between these "suicidogenic" social circumstances and the suicide rates into question. Since many of the variables used are traditional "Durkheimian" indicators of the integration of society, a critique of this still-dominant view of the relationship between society and suicide mortality, or its common operationalization, is implied.  相似文献   

4.
There has been increasing knowledge of the treatment, diagnosis, and demographics of adults with residual attention deficit/hyperactivity disorder (ADHD). However, less is known about the neuropsychological functioning in adults with residual ADHD. In comparing the clinical neuropsychological test performance of a group of adult clinic patients with residual ADHD (N = 30) with that of normal controls (N = 10), we found the patients performed worse on the Trail Making Test, a visual continuous performance test, and the "Brown-Peterson" Auditory Consonant Trigrams Test, but not on any other neuropsychological measures. This pattern indicated a deficit in the area of executive control type functioning, a functional deficit that could be linked to dysregulation of frontal lobe brain systems. Of equal interest was that patients diagnosed with ADHD/hyperactive impulsive type (ADHD+) and patients diagnosed with ADHD/inattentive type (ADHD-) had different types of executive system deficits. ADHD+ was associated with relative deficiency on the Wisconsin Card Sorting Test. ADHD- was associated with relative deficiency on the "Brown-Peterson" Auditory Consonant Trigrams Test, a measure of working memory, as well as less olfactory identification on a smell identification test. The data are discussed in terms of recent localization theories of frontal lobe function. The preliminary data suggest that the different cognitive weaknesses of ADD subtypes may be linked to dysregulation of separate frontal brain regions and/or neurotransmitter systems.  相似文献   

5.
Progress in forensic psychology has been rapid in some areas and nonexistent in others. By contrasting technological and conceptual scientific progress in three areas--the legal disposition of mentally ill offenders, risk appraisal, and theories of individual differences in antisocial behaviour--I attempt to identify some determinants of progress. Conceptual progress appears to depend even more heavily than technological progress on developments in the more advanced sciences, supporting the idea that consilience plays a vital heuristic role in psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

6.
This article examines whether longitudinal reading trajectories vary by the generational status of immigrant children as they begin formal schooling through the 3rd grade. The results of the hierarchical linear model indicated that 1st and 2nd generation children (i.e., those born in a foreign country and those born in the United States to foreign-born parents, respectively) had higher achievement scores at the spring of kindergarten than did 3rd generation children. Yet, controlling for race/ethnicity and maternal education fully reduced the 1st generation advantage. In addition, 1st generation children grew in reading achievement at a faster rate than did 3rd generation children. Controlling for a host of proximal and distal factors that included demographic, race/ethnic, family, and school characteristics somewhat reduced the association between generational status and rate of growth. First and 2nd generation children continued to increase their reading scores at a faster rate than did 3rd generation children. It is likely that additional factors not measured in the Early Childhood Longitudinal Survey-Kindergarten cohort, such as selection, cultural, or motivational factors, would be useful in further explaining the immigrant advantage. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

7.
Studies have found that older compared with young adults are less able to identify facial expressions and have worse memory for negative than for positive faces, but those studies have used only young faces. Studies finding that both age groups are more accurate at recognizing faces of their own than other ages have used mostly neutral faces. Thus, age differences in processing faces may not extend to older faces, and preferential memory for own age faces may not extend to emotional faces. To investigate these possibilities, young and older participants viewed young and older faces presented either with happy, angry, or neutral expressions; participants identified the expressions displayed and then completed a surprise face recognition task. Older compared with young participants were less able to identify expressions of angry young and older faces and (based on participants’ categorizations) remembered angry faces less well than happy faces. There was no evidence of an own age bias in memory, but self-reported frequency of contact with young and older adults and awareness of own emotions played a role in expression identification of and memory for young and older faces. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

8.
PURPOSE: To describe the clinical, radiologic, and pathologic findings in patients with uremic leontiasis ossea (ULO). MATERIALS AND METHODS: Five patients with renal osteodystrophy developed marked hyperostosis of the facial and cranial bones. Radiologic studies included plain radiography of the skull (n = 5), computed tomography with three-dimensional reconstruction (n = 4), magnetic resonance imaging (n = 3), and fluorine-18 sodium fluoride positron emission tomography (PET) (n = 1). Specimens from bone biopsies (three patients) were examined. RESULTS: Skull and facial alterations were remarkably similar. Numerous nodules of varying attenuation and signal intensity in the widened diploic space suggested brown tumors in different stages of evolution. Biochemical data and PET findings enabled confirmation of markedly increased bone turnover. Bone specimens demonstrated severe osteitis fibrosa. After parathyroidectomy, facial changes in all patients stabilized or improved mildly. CONCLUSION: A similar entity in animals, "bighead" disease, which results from nutritional and uremic secondary hyperparathyroidism, may provide a useful animal model for ULO in humans. Mild forms of this entity may be more common than the scarcity of previous reports suggests.  相似文献   

9.
The semantic interference effect in the picture–word interference task is interpreted as an index of lexical competition in prominent speech production models. Janssen, Schirm, Mahon, and Caramazza (2008) challenged this interpretation on the basis of experiments with a novel version of this task, which introduced a task-switching component. Participants either named the picture or read the word, depending on the word's color. Janssen et al. reported semantic interference in picture naming, regardless of whether the word appeared simultaneously with the picture (immediate naming) or 1,000 ms after the picture (delayed naming). Because picture name retrieval is completed in less than 1,000 ms, the finding in delayed naming was taken as evidence against the lexical competition account. In 3 sets of experiments conducted in German and English, we tested for semantic effects in Janssen et al.'s task-switching version and in the standard picture–word interference task. Using identical materials, we obtained sizeable interference effects in the standard task (Experiments 2, 4, and 6) but no effects in the task-switching version (Experiments 1, 3, and 5). When the word reading trials of the task-switching version were replaced with no-go trials (Experiment 7), semantic interference reemerged in immediate naming but was still absent in delayed naming. The experiments question the reliability of Janssen et al.'s critical finding and suggest that theoretical inferences about the origin of semantic effects in the standard picture–word interference task based on results from the task-switching version used by Janssen et al. are difficult to draw. (PsycINFO Database Record (c) 2011 APA, all rights reserved)  相似文献   

10.
Objective: To examine the influence of parental solicitousness on self-reported somatic complaints in school-age children. Design and Main Outcome Measures: Participants were 564 children (mean age 10 years) and their parents. Children completed self-report measures of somatic complaints, parental solicitousness, depressiveness, fear, and sense of coherence. Somatic complaints were assessed again 6 months later. Parents also completed a questionnaire about solicitousness. Results: Parental solicitousness as reported by children or parents was unrelated to the frequency of self-reported somatic complaints. Symptoms of depression, fear, and lower sense of coherence were associated with more somatic complaints, but did not interact with parental solicitousness. Conclusion: Parental solicitousness seems unrelated to more frequent somatic complaints in schoolchildren. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

11.
In the February 1957 issue of the Bulletin of the (French) National Institute for the Study of Work and for Vocational Guidance appeared a short paper by a member of the Moscow Academy of Pedagogy which contains a few sentences which suggest that psychological tests may possibly again be used in Russia. It will be interesting to watch further developments. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

12.
People typically believe they are more likely to engage in selfless, kind, and generous behaviors than their peers, a result that is both logically and statistically suspect. However, this oft-documented tendency presents an important ambiguity. Do people feel "holier than thou" because they harbor overly cynical views of their peers (but accurate impressions of themselves) or overly charitable views of themselves (and accurate impressions of their peers)? Four studies suggested it was the latter. Participants consistently overestimated the likelihood that they would act in generous or selfless ways, whereas their predictions of others were considerably more accurate. Two final studies suggest this divergence in accuracy arises, in part, because people are unwilling to consult population base rates when predicting their own behavior but use this diagnostic information more readily when predicting others'. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

13.
14.
This study investigated the role of metacognition in event-based prospective memory. The aim of the study was to explore the relation between an item-level prediction (judgments of learning, JOL) and actual performance. The task and JOLs allowed a differentiation of the two components of prospective memory tasks (retrospective vs. prospective). Results revealed that individuals' predictions were (moderately) accurate for delayed JOLs but not for JOLs that had to be given immediately after task encoding. Moreover, data revealed an underconfidence-with-practice effect only for the retrospective component. For the prospective component, a substantial and general level of underconfidence in individuals' prediction–performance ratios was observed. The importance of metacognitive factors for prospective memory is discussed. (PsycINFO Database Record (c) 2011 APA, all rights reserved)  相似文献   

15.
The main purpose of the present study is to investigate the role of the material parameters such as permeability, thermal diffusivity, and pore size distribution on the mechanical behavior of cementitious structures submitted to frost action, such as surface scaling. An experimental device, in which a cement paste specimen is exposed to freezing-thawing cycles under a thermal gradient, has been developed. The experimental results show that under high thermal gradient (up to 1.5°C/mm), skin damage can occur without a saline layer in contact with the frozen surface. This can be explained and quantified in the framework of poromechanics. The model is based on the coupling between liquid-ice crystal thermodynamic equilibrium, liquid water transport, thermal conduction, and elastic properties of the different phases that form the saturated porous material. It eventually predicts that a less permeable sample is more susceptible to damage by surface defacement, which explains the observed experimental result.  相似文献   

16.
BS Alpert 《Canadian Metallurgical Quarterly》1999,20(1):66-9; discussion 70
Hypertensive children and adolescents are frequently arbitrarily excluded from sports or exercise because of the fear of possible complications, such as stroke or myocardial infarction. No hypertensive children have had exercise-related morbidity or mortality in the reviewed literature. No restriction from dynamic exercise seems warranted; training has led to reductions in blood pressure in hypertensive youth. Isometric exercise is more hotly debated. Because no complications of exercise have been reported, the author prefers to allow participation if no target organ damage is present. Life-long maintenance of habitual physical activity may help prevent adult-onset essential hypertension.  相似文献   

17.
The author notes that, whether or not it is good for the advancement of a science of psychology, the psychologist has a duty to himself and to humanity to contribute far more than he has to one of the most pressing problems of our day--the problem of war and peace. Probably, there should be three types of literature about psychology and war: methodology, psychological information, and overall analyses. The production of information and idea patterns related to war and peace should not have to wait on special appropriations or special invitations to psychologists to participate. Psychologists should go to work on the problem and somehow see that their efforts find expression in publications that become widely available to those who might be interested in reading them. It would also seem reasonable to suppose that a national psychological convention would devote a major part of its time to this vital topic. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

18.
Working memory deficits have been identified in bipolar disorder, but there is evidence suggesting that these deficits may be markers for psychosis rather than affective disorder. The current study examined this issue by comparing two groups of individuals with bipolar disorder, one with psychotic features and one without psychotic features, with a group of normal controls. Working memory was conceptualized as a multicomponent system that includes auditory and visuospatial short-term stores, executive control processes, and an episodic buffer that allows for communication between short- and long-term memory stores (Baddeley & Logie, 1999). Results indicated that only executive control processes significantly differentiated the psychotic and nonpsychotic bipolar groups, although visuospatial working memory differentiated both bipolar groups from controls. The results support the idea that some aspects of working memory performance are markers for psychosis, while others may be more general markers for bipolar disorders. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

19.
Discusses some aspects of the terms "patient" and "client," especially regarding issues of dependency and responsibility in psychotherapy. (14 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

20.
Protein structures are a very special class among all possible structures. It has been suggested that a "designability principle" plays a crucial role in nature's selection of protein sequences and structures. Here, we provide a theoretical base for such a selection principle, using a simple model of protein folding based on hydrophobic interactions. A structure is reduced to a string of 0s and 1s, which represent the surface and core sites, respectively, as the backbone is traced. Each structure is therefore associated with one point in a high dimensional space. Sequences are represented by strings of their hydrophobicities and thus can be mapped into the same space. A sequence that lies closer to a particular structure in this space than to any other structures will have that structure as its ground state. Atypical structures, namely those far away from other structures in the high dimensional space, have more sequences that fold into them and are thermodynamically more stable. We argue that the most common folds of proteins are the most atypical in the space of possible structures.  相似文献   

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