242 research outputs found

    Top-Down and Bottom-Up Contributions to Understanding Sentences Describing Objects in Motion

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    Theories of embodied language comprehension propose that the neural systems used for perception, action, and emotion are also engaged during language comprehension. Consistent with these theories, behavioral studies have shown that the comprehension of language that describes motion is affected by simultaneously perceiving a moving stimulus (Kaschak et al., 2005). In two neuroimaging studies, we investigate whether comprehension of sentences describing moving objects activates brain areas known to support the visual perception of moving objects (i.e., area MT/V5). Our data indicate that MT/V5 is indeed selectively engaged by sentences describing objects in motion toward the comprehender compared to sentences describing visual scenes without motion. Moreover, these sentences activate areas along the cortical midline of the brain, known to be engaged when participants process self-referential information. The current data thus suggest that sentences describing situations with potential relevance to one's own actions activate both higher-order visual cortex as well brain areas involved in processing information about the self. The data have consequences for embodied theories of language comprehension: first, they show that perceptual brain areas support sentential-semantic processing. Second the data indicate that sensory-motor simulation of events described through language are susceptible to top-down modulation of factors such as relevance of the described situation to the self

    HTR2008-58284 HIGH-TEMPERATURE PROPERTIES OF NUCLEAR GRAPHITE

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    ABSTRACT The unique combination of physical properties inherent to graphite makes it an attractive material for use as a moderator in high-temperature nuclear reactors (HTR's). Hightemperature physical properties of three nuclear grade graphites manufactured by GrafTech International Holdings Inc. (GrafTech) (PCEA, PCIB-SFG, and PPEA) have been determined experimentally and are presented here. Tensile strength, Young's modulus, thermal conductivity, specific resistance, and coefficient of thermal expansion (CTE) data are collected at temperatures from 25 °C to as high as 2000 °C and are found to be consistent with classical graphite behavior

    A practical guide to the evaluation and treatment of male lower urinary tract symptoms in the primary care setting

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/75555/1/j.1742-1241.2007.01491.x.pd

    Female Fertility Affects Men's Linguistic Choices

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    We examined the influence of female fertility on the likelihood of male participants aligning their choice of syntactic construction with those of female confederates. Men interacted with women throughout their menstrual cycle. On critical trials during the interaction, the confederate described a picture to the participant using particular syntactic constructions. Immediately thereafter, the participant described to the confederate a picture that could be described using either the same construction that was used by the confederate or an alternative form of the construction. Our data show that the likelihood of men choosing the same syntactic structure as the women was inversely related to the women's level of fertility: higher levels of fertility were associated with lower levels of linguistic matching. A follow-up study revealed that female participants do not show this same change in linguistic behavior as a function of changes in their conversation partner's fertility. We interpret these findings in the context of recent data suggesting that non-conforming behavior may be a means of men displaying their fitness as a mate to women

    Continence for Women: A Test of AWHONN's Evidence-Based Protocol in Clinical Practice

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    To test the effectiveness of an evidence-based protocol for urinary incontinence in increasing identification of women with the condition and improving their outcomes. Design : Prospective formative evaluation study. Setting : Twenty-one public, private, and other women's health care sites. Participants : Women in ambulatory care settings ( N = 1,474) provided descriptive statistics. Clinical outcomes were tested in 132 cases for whom pre- and posttreatment data were available. Interventions : Standardized screening and baseline follow-up forms were used to minimize time burden on clinicians; bladder and pelvic floor muscle training materials were provided to clinicians for distribution. Main Outcome Measures : Self-reported frequency, volume, and quality of life related to incontinence and cost of self-management were used to assess protocol effectiveness. Results : Frequency of incontinence episodes, estimated volume lost per episode, and the cost of self-management decreased. Quality of life improved, as reflected in decreased bother attributed to incontinence and in the number of women avoiding activities such as shopping, exercising, or travel because of incontinence. Conclusions : This simple program of pelvic floor muscle and bladder training, as it has been systematically implemented in a variety of ambulatory women's health care settings, has benefited women's continence status. The results of this project strongly support widespread application.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/75663/1/j.1552-6909.2000.tb02752.x.pd
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