Using Quasi F to prevent alpha inflation due to stimulus variation.

Suggests that the nominal alpha level may be very inflated in much of the published literature where the conventional F test is used. This alpha inflation is often caused by ignoring stimulus variation or treating it as a fixed effect. This problem is illustrated in a variety of areas, and the use of Quasi F ratios as a means of achieving generality over both Ss and stimuli is discussed. Monte Carlo experiments are reported that examine the performance of the Quasi F in a variety of realistic situations in which the data violate distribution and homogeneity of variance assumptions. In general, the Quasi F has proved to be robust, and it is suggested that more general use of such tests would greatly increase the reliability of the published data base. (13 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Making homework work at home: the parent's perspective

This article views homework through the eyes of parents in a rural area whose children with disabilities spent a majority of their time in general education classrooms. The qualitative analysis of data from individual interviews, focus groups, and parent action research logs yielded five themes: (a) Parents felt ill-prepared to help their children with homework; (b) parents wanted more information about the classroom teachers' expectations of their child and of their roles as parents in helping with homework; (c) parents wanted their children to be given individualized homework assignments; (d) parents valued hands-on homework and projects in which the whole family could participate; and (e) parents wanted a two-way communication system that would allow them to become partners on their child's instructional team.     

Noninvasive estimate of work of breathing due to the endotracheal tube

BACKGROUND: Although evidence suggests that secretions lining the inner wall of the endotracheal tube (ETT) often reduce its cross-sectional area, no data are available on the work of breathing as affected by the ETT. A noninvasive method is proposed for estimating the additional work of breathing necessitated by the ETT in patients whose lungs are mechanically ventilated. This method (the acoustic-Blasius method) involves (1) determining the inner geometry of the ETT using the acoustic reflection method and (2) using these geometric data to solve the Blasius equation that characterizes the ETT pressure drop-flow relation. METHODS: To evaluate the acoustic-Blasius method in vivo, the authors computed the work of breathing due to the ETT in four healthy persons breathing through an ETT connected to a pressure-support device and in five tracheally intubated patients receiving mechanical assistance in the pressure-support mode. For the tracheally intubated patients, the reference value was the work calculated from the ETT pressure drop measured between the two ends of the ETT using a pressure catheter. RESULTS: In the healthy participants and the tracheally intubated patients, there was close agreement between inspiratory work per cycle values estimated by directly measuring the ETT pressure drop and calculated using the acoustic-Blasius method: The difference was consistently less than 0.08 joules (< 10% of the reference value). CONCLUSIONS: The data show that the acoustic-Blasius method allows noninvasive quantification of the ETT-related work of breathing in situ.     

强化计量工作合理节约能源

文章介绍了青铜峡铝业集团公司通过准确的计量数据为企业提供了可靠的管理依据，进行有效的在线工艺控制，使计量检测水平真正向自动化、一体化方向发展，为企业的产品质量和经济效益提高创造了科学的条件，起到了保证的作用。     

依照节能法规做好节能工作

本文介绍公司近年来的有效节能方法和公司节能前景。     

Psychiatric-anthropologic field work. Sue Estroff: Making it crazy]

Here we report a case of a patient in whom the administration of calcium dobesilate was associated with the development of an agranulocytosis episode. Eight weeks after the beginning of the treatment he was hospitalized with fever and leucopenia. Bone marrow biopsy showed a maturative promyelocytic interruption. All medication was withdrawn and blood cell count was completely recovered 7 days after admission. G-CSF was administered. A detailed study was performed and causal relationship was not suggestive for the other three drugs the patient was receiving. To date, there have only been reported two cases of calcium dobesilate induced agranulocytosis.     

Making the invisible visible: Fear and disclosure of sexual orientation at work.

Stigma theory was used to examine the fears underlying the disclosure of a gay identity at work. Using a national sample of 534 gay, lesbian, and bisexual employees, this study examined the antecedents that affect the degree of disclosure of a gay identity at work and, for those who had not disclosed, the factors that influence their fears about full disclosure. Employees reported less fear and more disclosure when they worked in a group that was perceived as supportive and sharing their stigma. Perceptions of past experience with sexual orientation discrimination were related to increased fears but to greater disclosure. For those who had not fully disclosed their stigma, the fears associated with disclosure predicted job attitudes, psychological strain, work environment, and career outcomes. However, actual disclosure was unrelated to these variables. The utility of fear of disclosure for understanding processes underlying the disclosure of gay and other invisible stigmatized identities in the workplace is discussed. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Selective absorption of radio frequency energy due to collective motion of charged domains: case of lysozyme crystal

The role of the N-methyl-D-aspartate (NMDA) receptors in cocaine conditioning and sensitization of locomotor activity was studied in four groups of Sprague-Dawley rats. A sub-motoric dose of the NMDA antagonist MK-801 (0.1 mg/kg, i.p.) was employed using a novel dual-compartment Pavlovian drug conditioning paradigm. The animals were placed sequentially in two different test environments in which locomotor activity was monitored. In the first compartment, the animals always received a non-drug test for 20 min. Upon completion of this test, the animals received either saline, cocaine (10 mg/kg i.p.), MK-801 or MK-801 plus cocaine depending on group assignment and were then placed immediately into the second compartment and again tested for 20 min. A total of six non-drug and six drug tests were conducted every other day over a 12-day period. Across all drug/saline treatment and post-treatment tests for conditioning, there were no statistical differences in locomotor activity among the saline and drug treatment groups in the non-drug test environment. In the drug/saline associated environment, however, cocaine had a reliable stimulant effect on locomotion when administered alone or in combination with MK-801. Following a 1-day and again after 21-days of withdrawal, all animals were administered a non-drug test for conditioning in which no injections were administered. On both tests, all groups had equivalent activity levels in the non-drug environment. In the drug/saline environment, only the cocaine group of the three drug treatment groups exhibited conditioned hyperlocomotion. Importantly, MK-801 blocked conditioned hyperlocomotion in the combined cocaine+MK-801 group. MK-801 did not alter serum or brain cocaine concentration or the cocaine effects on dopamine metabolism in limbic brain tissue. The co-administration of MK-801 with cocaine, however, blocked the corticosterone release effect of cocaine. Thus, the NMDA receptor site appears critical for cocaine induced conditioning and for corticosterone release.