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1.
In this paper, the public view of nanotechnology and its applications in medicine, agriculture and industry is evaluated in the mega cities of Iran. Data from 683 individuals in public places provided the first civic perception of nanotechnology in Iran. Quantitative statistical analysis on positive or negative points of view demonstrated that Iranian people had general positive opinions on nanotechnology and its application in medicine. They believed that nanomedicine can significantly improve the current methods used in disease treatments, especially for cancer therapy. In general, the responders believed that they would easily accept the use of nanotechnology products and would like increased financial support of the government on nanomedicine and nanotechnology research fields and they showed little anxiety about the possible risks. According to our statistical analysis, three individual characteristics age, education level and career had a direct correlation with the knowledge level of Iranian people on nanotechnology in the mega cities of Iran.  相似文献   
2.
The cognitive theory of depression proposes significant relations between negative thoughts and depression. Evidence for the model has been widely observed in Western countries. However, despite the high prevalence of depression in the Middle East (ME), there has been limited research that has evaluated the cognitive profiles of people living in this region, and especially in non-Arab countries like Iran. The current research examined these relationships in Iran. Convenience sampling was used to recruit 80 depressed and 80 non-depressed individuals via advertising in clinics and public areas, respectively. Depression status was checked with a structured interview, the Major Depressive Disorder subscale of the Psychiatric Diagnostic Screening Questionnaire, and the Beck Depression Inventory-II. All participants completed the Automatic Thoughts Questionnaire-Negative to examine the frequency of negative automatic thoughts. Unlike other results from Arab countries, depressed participants indicated significantly more negative thoughts towards self and future compared with the non-depressed group. The results of the present study are consistent with the negativity hypothesis of the cognitive theory of depression. Further research is needed in the in ME, to investigate other hypotheses of this theory in this region. Strengths and limitations of the present study are discussed.  相似文献   
3.
Action game playing has been associated with several improvements in visual attention tasks. However, it is not clear how such changes might influence the way we overtly select information from our visual world (i.e. eye movements). We examined whether action-video-game training changed eye movement behaviour in a series of visual search tasks including conjunctive search (relatively abstracted from natural behaviour), game-related search, and more naturalistic scene search. Forty nongamers were trained in either an action first-person shooter game or a card game (control) for 10 hours. As a further control, we recorded eye movements of 20 experienced action gamers on the same tasks. The results did not show any change in duration of fixations or saccade amplitude either from before to after the training or between all nongamers (pretraining) and experienced action gamers. However, we observed a change in search strategy, reflected by a reduction in the vertical distribution of fixations for the game-related search task in the action-game-trained group. This might suggest learning the likely distribution of targets. In other words, game training only skilled participants to search game images for targets important to the game, with no indication of transfer to the more natural scene search. Taken together, these results suggest no modification in overt allocation of attention. Either the skills that can be trained with action gaming are not powerful enough to influence information selection through eye movements, or action-game-learned skills are not used when deciding where to move the eyes.  相似文献   
4.
Sexual harassment in public places is a forbidden form of sex discrimination that includes both verbal and nonverbal behaviors—such as wolf whistles, leers, winks, grabs, pinches, catcalls, and street remarks—and is often overlooked by social science researchers. The present study, using mixed methods and “exploratory design-instrument development method” was conducted to investigate the aspects of Iranian women’s experiences of sexual harassment in public places using a student sample. Using the grounded theory method, the qualitative part of this study was conducted by face-to-face, in-depth interviews with 16 female students of Shiraz University, Shiraz, Iran, which resulted in seven axial categories and one core category. The results of the qualitative part of the study were used to develop the instrument of the quantitative part, the questionnaire. Using the survey technique, the quantitative phase of this study employed a sample of 369 female students of Shiraz University, selected by stratified sampling. Data analysis procedures included a theme analysis of the interviews, a statistical analysis of the survey, and an integrated consideration of the qualitative and quantitative results. We found that experiencing sexual harassment is significantly correlated with presence in public places, acceptance of gender rules, mother’s education and the kind of women’s dressing and make up.  相似文献   
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mRNA translation, or protein synthesis, is a major component of the transformation of the genetic code into any cellular activity. This complicated, multistep process is divided into three phases: initiation, elongation, and termination. Initiation is the step at which the ribosome is recruited to the mRNA, and is regarded as the major rate-limiting step in translation, while elongation consists of the elongation of the polypeptide chain; both steps are frequent targets for regulation, which is defined as a change in the rate of translation of an mRNA per unit time. In the normal brain, control of translation is a key mechanism for regulation of memory and synaptic plasticity consolidation, i.e., the off-line processing of acquired information. These regulation processes may differ between different brain structures or neuronal populations. Moreover, dysregulation of translation leads to pathological brain function such as memory impairment. Both normal and abnormal function of the translation machinery is believed to lead to translational up-regulation or down-regulation of a subset of mRNAs. However, the identification of these newly synthesized proteins and determination of the rates of protein synthesis or degradation taking place in different neuronal types and compartments at different time points in the brain demand new proteomic methods and system biology approaches. Here, we discuss in detail the relationship between translation regulation and memory or synaptic plasticity consolidation while focusing on a model of cortical-dependent taste learning task and hippocampal-dependent plasticity. In addition, we describe a novel systems biology perspective to better describe consolidation.  相似文献   
8.
Although the effects of insecure attachment on vulnerability, incidence, and developing mental disorders have been confirmed by many studies, the mechanism of this effect is still unknown. Therefore, the main aim of this study was to investigate the mediating and moderating role of the three-dimensional model of personality self-regulation in the relationship between insecure attachment and subclinical depression, anxiety, and stress. Four hundred Iranian students at Shiraz University were recruited and completed the following scales: the Revised Adult Attachment, Depression Anxiety Stress, Integrative Self-Knowledge, Mindful Attention Awareness, Self-Control, and Self-Compassion. Results showed that there was a moderate correlation among all the variables under study in the expected directions. Multiple mediating models analyses indicated that regarding the relationship between insecure attachment and depression, the components of integrative self-knowledge, self-control, and self-compassion functioned as mediators. However, regarding the relationship between insecure attachment and anxiety and stress, the components of integrative self-knowledge, mindfulness, and self-compassion relatively functioned as mediators. Further, our results showed that only mindfulness and self-compassion were identified as moderators in the relationship between insecure attachment and depression. It is concluded that insecure attachment may cause psychological damage due to deficiency in the components of the three-dimensional model of personality self-regulation, and that mindfulness and self-compassion may play a protective role in the relationship between insecure attachment and depression.  相似文献   
9.
Recent evidence suggests that test anxiety is increasing among students; however, relatively little is known regarding the related factors of test anxiety. The purpose of this study was to (1) examine the relationships between two forms of perfectionism, academic hardiness, and test anxiety, and (2) examine the moderating role of academic hardiness on the association between two types of perfectionism and test anxiety. This study included 520 students ranging from 15 to 21 years of age from eight high schools in Tehran, Iran completed the self-administered questionnaires. The results of Structural Equation Modelling (SEM) revealed that students with high levels of personal standards perfectionism and high levels of academic hardiness were less likely to experience test anxiety, while students with high levels of evaluative concerns perfectionism were more likely to experience test anxiety. A multi-group analysis revealed that academic hardiness moderated the relationship between evaluative concerns perfectionism and test anxiety. These findings enhance existing literature by revealing moderating processes that explain how perfectionism effects test anxiety.  相似文献   
10.
Despite the growing number of studies on psychopathy in females, the core characteristics of this personality disorder among females remain uninvestigated. Most studies on psychopathy in females have attempted to understand the disorder by applying male criteria to adult females: they have ignored putative gender differences in the constitution and expression of this disorder. Several issues require resolution: first, whether practitioners apply the same criteria to diagnose psychopathy in women, second, whether the instruments used to assess psychopathy are tapping the same construct across gender, third, whether the same types of behavioral expression of key traits are similar across genders, and fourth, whether the diagnosis possesses the same forensic utility across genders. The relevant literature is reviewed and issues of design and analysis are considered.  相似文献   
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