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51.
Investigation of children's understanding of the cognitive verb forget has shown that young children do not consider the role of prior knowledge when using this verb. Thus, someone may be said to have forgotten a fact despite not ever having previously known it. However, forget can also be used to refer to a failure to recall a prior intention. Three experiments examined the role of prior intention as well as prior knowledge in the comprehension of forget by 160 young children aged four to eight years. The results showed that children initially have two interpretations of forget: as an unfulfilled desire rather than a failure to recall a prior intention, and as a state of not knowing rather than a failure to recall prior knowledge. Explanations for the late comprehension of forget are discussed in terms of representation of knowledge and intention, processing capacity and exposure to pragmatic usages.  相似文献   
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53.
This article describes an observer-based technique for assessing auditory capacities of infants from 3 to 12 months of age. This technique, referred to as the Observer-based Psychoacoustic Procedure (OPP), combines features of the Forced-choice Preferential Looking technique developed by Teller (1979) and of Visual Reinforcement Audiometry (Moore, Thompson, & Thompson, 1975). The rationale behind the procedure and the specific techniques used in its application are detailed here. Psychometric functions and thresholds for pure-tone detection and frequency discrimination obtained with OPP are also presented. The results for 6-month-olds are compared with results from previous studies employing a visually reinforced head-turn procedure. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
54.
In this work we tried to perform a dynamic analysis of coronary vascular response to histamine, using a simple mathematical analysis as a first step in the better understanding of complex histamine effects on coronary blood vessels of the isolated guinea pig heart. So, we defined more parameters, such as: I and delta I to quantify the intensity of coronary perfusion pressure (CPP) change, T and dt to quantify the time CPP change occurs and D to characterize the intensity and duration of CPP change, i.e. to quantify the dynamics of this change.  相似文献   
55.
Conducted an intensive, qualitative analysis of borderline and non-borderline client's and therapist's experiences of metaphoric expression in a single psychotherapy session. Open-ended interviews were conducted with 2 therapists and 4 clients (aged 24–38 yrs; 2 borderline and 2 non-borderline) who were actively engaged in psychoanalytically-oriented, long-term psychotherapy. The intensive analyses of inquiry interview transcipts revealed 3 important categories of metaphor functions that were shared by all 4 psychotherapy dyads: (1) metaphors illuminate clinical issues, (2) metaphor functions to depict clients' self and object relationships, and (3) therapist metaphor stimulates an intensification of client experiential engagement in therapy. Patterns differentiating the borderline and non-borderline dyads in relation to metaphor use were discussed in the context of 2 core categories: the Representation Mode of Interaction and the Literal Mode of Interaction. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
56.
The spread of microbial contamination on the hides of beef was investigated at two stages in the meat chain: (i) in a simulated livestock market ("the market") using 33 animals, and (ii) in the unloading-to-skinning area of a commercial abattoir using 18 animals. At both stages, harmless bacterial markers (nalidixic acid-resistant Escherichia coli K-12; rifampicin- and nalidixic acid-resistant Pseudomonas fluorescens; and a tetracycline-resistant E. coli) were inoculated on the hides of a small number of selected animals, and their transfer to other animals and the environment was examined. At the market, the initial prevalence of animals positive for the hide markers (9.1% in each phase) introduced in the presale pen, sale ring, and postsale pen changed to 39.4, 15.1, and 54.5%, respectively, by the end of the market process. In addition, widespread contamination of the market environment with the hide markers was observed. At the abattoir, the initial prevalence of animals positive for the hide marker (11.1%) inoculated at unloading increased to 100% (hide before skinning) and 88.8% (skinned carcass). In addition, another marker inoculated on environmental surfaces in lairage pens, races, and stunning box was detected on 83.3% (hide before skinning) and 88.8% (skinned carcass). These results, although obtained with a relatively small number of animals, demonstrate that both the livestock market process and the unloading-to-skinning process at abattoirs can facilitate the extensive spread of microbial contamination on hides not just within, but also between, batches of animals.  相似文献   
57.
Prior to their having a 1st trimester abortion, women's perceptions of social support from their partner, family, and friends and self-efficacy for coping were assessed. Depression, mood, physical complaints, and anticipation of negative consequences were measured after the 30-min recovery period. As predicted, perceived social support enhanced adjustment indirectly through its effects on self-efficacy. Women who perceived high support from their family, friends, and partners had higher self-efficacy for coping. Higher self-efficacy, in turn, predicted better adjustment on the psychological measures but not on the physical complaint measure. No direct path between social support and adjustment was observed. In addition, women who told close others of their abortion but perceived them as less than completely supportive had poorer postabortion psychological adjustment than either women who did not tell or women who told and perceived complete support. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
58.
Four soybean oils (SBO) with different fatty acid (FA) compositions were tested for stability during intermittent heating and frying of bread cubes. None of the oils was hydrogenated or contained any additives. Two of the oils were from common commercial varieties. The other two oils were from seed developed in a mutation breeding program and included the line A5, which contained 3.5% linolenate, and the line A6, which contained 20% stearate. Each oil (450 g) was heated to 185 C in a minifryer. Bread cubes were fried at the beginning of heating, and half were stored at −10 C to preserve freshness. The second half was stored at 60 C for 14 days. Heating was continued for 10 hr/day for four days. After 40 hr of heating, an additional 30 g of bread cubes were fried. According to sensory evaluations of the fried bread cubes, peroxide values of oil extracted from the cubes and conjugated diene values of the oils, the A5 and A6 oils were more stable than those from the commercial varieties. Small differences occurred in the flavor and oxidative stability of the cubes fried after 40 hr of heating the oils. Large differences between A5 and A6 and the commercial varieties occurred after storage of bread cubes for 14 days.  相似文献   
59.
    
The near-ternary eutectic Sn-Ag-Cu alloys have been identified as leading Pb-free solder candidates to replace Pb-bearing solders in microelectronic applications. However, recent investigations on the processing behavior and solder joints reliability assessment have revealed several potential reliability risk factors associated with the alloy system. The formation of large Ag3Sn plates in Sn-Ag-Cu joints, especially when solidified in a relatively slow cooling rate, is one issue of concern. The implications of large Ag3Sn plates on solder joint performance and several methods to control them have been discussed in previous studies. The minor Zn addition was found to be effective in reducing the amount of undercooling required for tin solidification and thereby to suppress the formation of large Ag3Sn plates. The Zn addition also caused the changes in the bulk microstructure as well as the interfacial reaction. In this paper, an in-depth characterization of the interfacial reaction of Zn-added Sn-Ag-Cu solders on Cu and Au/Ni(P) surface finishes is reported. The effects of a Zn addition on modification of the interfacial IMCs and their growth kinetics are also discussed.  相似文献   
60.
    
Abstract This paper addresses the problems of adapting instructional courses for trans-European tele-learning and for enlarging the range of students and learning modalities in distance learning. Building on previous work on the portability of educational software , the paper examines various dimensions of adaptation of existing courses: (a) content, (b) instructional materials, (c) language issues, (d) instructional delivery, (e) the instructional setting of the course, and (f) the situation of the course in a programme of study, and considers how those dimensions will particularly affect course adaptation. From this analysis, a set of six guidelines is presented for course adaptation. The Commission of the European Community recently supported a trans-European project, TeleScopia, which aimed at investigating these dimensions as research issues.  相似文献   
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