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41.
An experiment was conducted to examine memory for emotional trait adjectives in depressed children and adolescents. Two groups of children and adolescents, clinically depressed participants and non-clinical controls, were compared on computerized versions of recall and recognition memory tasks. Three groups of words (positive trait adjectives, negative trait adjectives, and categorized neutral words) were used in the experiment. Results showed that the depressed group recalled significantly more negative adjectives than positive adjectives, whereas the control group recalled the same number of positive and negative adjectives. This effect was predicted by the association between age and level of depression, with the depression-related bias becoming stronger with age. Signal detection analysis revealed that the depressed group did not show any bias in the recognition task. The findings are discussed with respect to cognitive theories of depression with consideration of the developmental implications.  相似文献   
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BACKGROUND: Skin diseases have only recently been considered as a possible public health problem in developing countries. Data supporting this matter are scarce. The aim of this study is to report the experience of a specialized dermatologic center in Bamako (Mali) in order to complete two previous studies conducted in the Bamako area: a prevalence study in the general population and a study in nonspecialized health centers of Bamako. It is our intention to provide a comprehensive picture of the problem of skin diseases in an African developing country. METHODS: We retrospectively collected all cases of skin diseases diagnosed during consultations provided at the Institut Marchoux in Bamako, the only center specializing in dermatology in Mali, during the year 1993. RESULTS: A total of 10,575 new outpatients were seen with 10,889 skin diseases. The main skin diseases registered were as follows: infectious dermatoses (41% of all diagnoses, including scabies (16.6%), superficial mycoses (13.6%), and primary pyoderma (5.6%)), dermatitis (20.4%), papular urticaria (4.4%), acne (4.2%), pityriasis alba (3.6%), keratoderma (3.6%), and urticaria (3%). Typical tropical infectious diseases accounted for only 1% of all diagnoses. CONCLUSIONS: It appears that certain skin diseases (mainly scabies and pyoderma) are an important health problem for the population of the Bamako area. Public health policies should be implemented in order to manage this problem rationally.  相似文献   
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We present the spatial structure of binase, a small extracellular ribonuclease, derived from 1H-NMR* data in aqueous solution. The total of 20 structures were obtained via torsion angle dynamics using DYANA program with experimental NOE and hydrogen bond distance constraints and phi and chi1 dihedral angle constraints. The final structures were energy minimised with ECEPP/2 potential in FANTOM program. Binase consists of three alpha-helices in N-terminal part (residues 6-16, 26-32 and 41-44), five-stranded antiparallel beta-sheet in C-terminal part (residues 51-55, 70-75, 86-90, 94-99 and 104-108) and two-stranded parallel beta-sheet (residues 22-24 and 49-51). Three loops (residues 36-39, 56-67 and 76-83), which play significant role in biological functioning of binase, are flexible in solution. The differences between binase and barnase spatial structures in solution explain the differences in thermostability of binase, barnase and their hybrids.  相似文献   
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Gonadogenesis in the Drosophila embryo is a complex process involving numerous cellular migratory steps and cell-cell interactions. The mechanisms guiding germ cells to move through, recognize and adhere to specific cell types are poorly understood. In order to identify genes that are required for these processes, we have conducted an extensive mutagenesis of the third chromosome and screened for mutations disrupting germ cell migration at any point in embryonic development. Phenotypic analysis of these mutants demonstrates that germ cell migration can be broken down into discrete developmental steps, with each step requiring a specific set of genes. Many of these genes are involved in the development of gonadal mesoderm, the tissue that associates with germ cells to form the embryonic gonad. Moreover, mutations that we isolated affecting embryonic patterning as well as germ cell migration suggest that the origin of gonadal mesoderm lies within the eve domain of the developing mesoderm.  相似文献   
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OBJECTIVE: To identify whether obstetric and perinatal factors are independent predictors of child behaviour at 5 years. METHODOLOGY: The Mater University Study of Pregnancy (MUSP) is a prospective cohort study of 8556 mothers enrolled in early pregnancy. The relationship of obstetric and perinatal factors, maternal lifestyle, age and gender of the child, and social disadvantage were examined as predictors of child behaviour in 5005 children completing a modified child behaviour checklist at 5 years. This checklist contained three independent groups of behaviour: externalizng, internalizing and SAT (social, attentional and thought problems). RESULTS: In the initial analysis a limited number of associations were present. After adjusting for measures of social disadvantage, only number of antenatal admissions was associated with child behaviour in all three scales, while maternal cigarette smoking in pregnancy and male gender were associated with externalising and SAT behaviours. CONCLUSIONS: Most common epidemiologic obstetric and perinatal risk factors were not independent predictors of behaviour problems in children at 5 years.  相似文献   
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OBJECTIVE: Our purpose was to compare the efficacy and safety of two standardized preparations of prostaglandin E2, Prepidil and Cervidil, for ripening of the cervix and initiation of labor. STUDY DESIGN: This was a prospective randomized study. Subjects in whom induction of labor was indicated were randomly assigned to receive either Prepidil (n = 36), an intracervical prostaglandin E2 gel, or Cervidil (n = 37), a controlled-release hydrogel pessary, as a cervical ripening agent. Inclusion criteria included (1) a Bishop score of < or = 7, (2) a cervix < 4 cm dilated, and (3) < or = 2 cm of cervical dilatation if effacement was > 70%. Each agent was administered according to the manufacturer's recommendations. RESULTS: There was no difference in Bishop scores between the two groups at the completion of the ripening process. The following mean times were shorter for the pessary group than for the gel group: (1) insertion of the ripening agent to vaginal delivery (20.6 vs 26.4 hours, p = 0.017), (2) time to achieve cervical ripening (11.1 vs 15.2 hours, p < 0.001), (3) time to achieve active labor (18.3 vs 25.5 hours, p = 0.019), and (4) hospital stay (3.7 vs 4.4 days, p = 0.03). Labor was initiated without the use of oxytocin in 24% of patients in the pessary group versus 3% of those in the gel group (p = 0.014). CONCLUSION: Both prostaglandin E2 agents are effective in achieving cervical ripening; however, the controlled-release pessary achieves ripening over a shorter time period. Furthermore, because time to achieve vaginal delivery and length of stay are shorter, the use of oxytocin is less frequent, and there is no increase in complications, the overall cost is expected to be less with the use of Cervidil as compared with Prepidil.  相似文献   
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