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171.
分析了我国城市化加速发展过程中出现的城市社区健康问题及其影响因素.在对社区健康教育与健康促进的作用和意义进行探讨的基础上,提出解决这些城市健康问题的根本途径是城市社区健康教育与健康促进策略,并针对我国城市社区健康教育与健康促进的研究和发展现状提出对策建议. 相似文献
172.
173.
Jong-Ho Nam Joshua A. Solomon Michael J. Morgan Charles E. Wright Charles Chubb 《Attention, perception & psychophysics》2009,71(7):1469-1477
We investigated whether plaids activate preattentive mechanisms that are distinct from those activated by their component gratings. Observers searched for a target plaid, the sum of two perpendicular components in a circular window (radius = 0.65°). The target was present on half the trials. On all trials, half of the distractors had the same frequency and orientation as one component of the plaid, and the rest were the same as the other component. The target and the distractors were arrayed evenly on a circle (radius = 2.36°) around fixation. Target and distractor contrasts were randomly perturbed up to ±30%. The following results held for each of the 6 participants tested. (1) When F1 = 2 c/deg and F2 = 5.25 c/deg, response times (RTs) increased significantly when set size (number of distractors plus target, if present) was increased from four to eight. (2) When the spatial frequencies of both plaid components were the same (i.e., both 2 c/deg or both 5.25 c/deg), RTs increased very slightly, if at all, when set size was increased from four to eight. These results suggest the existence of a preattentive, plaid-sensitive mechanism with band-limited input that does not respond to individual grating components. 相似文献
174.
175.
以汉语单字词为材料,通过颜色来区分目标和分心物,采用过程分离程序,直接探讨了目标激活与分心物抑制和意识、无意识过程之间的关系。结果表明,(1)靶词充当分心物时,不仅意识过程存在的概率降低,无意识过程存在的概率也降低。这一结果说明,在选择性注意任务中,信息是有关还是无关,并不能分离意识和无意识过程;(2)靶词充当目标时,加工水平影响Pc,但不影响Pu,而靶词充当分心物时,加工水平既不影响Pc,也不影响Pu。因此,加工水平能否分离意识和无意识过程,依赖于靶词的作用或信息是否有关 相似文献
176.
Representation and Reasoning about Evolutions of the World in the Context of Reasoning about Actions
The first step in reasoning about actions and change involves reasoning about how the world would evolve if a certain action
is executed in a certain state. Most research on this assumes the evolution to be only a single step and focus on formulating
the transition function that defines changes between states due to actions. In this paper we consider cases where the evolution
is more than just a single change between one state and another. This is manifested when the execution of an action may trigger
execution of other actions, or when multiple agents act on the environment following certain strategies. 相似文献
177.
Carol M. Cicerone Donald D. Hoffman Peter D. Gowdy Jin S. Kim 《Attention, perception & psychophysics》1995,57(6):761-777
We introduce and explore a color phenomenon which requires the prior perception of motion to produce a spread of color over a region defined by motion. We call this motion-induced spread of colordynamic color spreading. The perception of dynamic color spreading is yoked to the perception of apparent motion: As the ratings of perceived motion increase, the ratings of color spreading increase. The effect is most pronounced if the region defined by motion is near 1° of visual angle. As the luminance 相似文献
178.
Min J. Baek Hyun J. Kim Hui J. Ryu Seoung H. Lee Seol H. Han Hae R. Na 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(2):214-229
ABSTRACT Background: The story recall test (SRT) is one of the most reliable neuropsychological assessments for evaluating verbal memory function in order to distinguish between individuals with normal aging, mild cognitive impairment (MCI), and Alzheimer's disease (AD). The SRT is analogous to the logical memory test in Wechsler Memory Scale-III, which has recently been developed and standardized to apply to older adults in Korea. The purpose of this study was to examine the usefulness of the SRT and its ability to discriminate between normal cognitive aging and patients with MCI or AD. Methods: One hundred and twelve patients with MCI, 97 patients with AD, and 53 healthy elderly adults participated in this study. The SRT was compared with the Clinical Dementia Rating (CDR), Global Deterioration Scale (GDS), Korean version of the Mini Mental State Examination (K-MMSE), and the Korean version of the Hopkins Verbal Learning Test (K-HVLT). Results: The SRT was well-correlated with the dementia rating scales and the K-HVLT. However, the sensitivity and specificity of the SRT was greatly influenced by the level of education of the subjects. Conclusions: The SRT is a sensitive measurement of verbal memory function that can be used in clinical settings to discriminate between normal memory functioning and the very early and moderate stages of AD in a Korean population. Moreover, it is important to recognize that the SRT is more appropriate for subjects with a high level of education rather than a low level of education to differentiate normal cognitive aging from MCI or AD. 相似文献
179.
Jodi J. Frey PhD Philip J. Osteen PhD Tanya L. Sharpe PhD Amanda O. Mosby MA Thomas Joiner PhD Brian Ahmedani PhD Derek Iwamoto PhD Boyoung Nam PhD Sally Spencer-Thomas PsyD Jungyai Ko PhD Orrin D. Ware MSW Rachel Imboden MSW Michelle M. Cornette PhD Jon Gilgoff MSW 《Suicide & life-threatening behavior》2023,53(1):137-153
180.
心脏死亡供体作为增加器官来源的重要途径;已受到世界移植界的广泛关注.在我国特殊的移植环境中;心脏死亡器官捐献的开展有其优势;但也面临着伦理、技术及社会方面的困境.除了要加大宣传力度;树立新观念外;还应培训器官捐献协调员;建立合理的补偿机制;树立医院良好形象;促进器官捐献不断发展. 相似文献