Decreased Latent Inhibition Is Associated With Increased Creative Achievement in High-Functioning Individuals.

Reductions in latent inhibition (LI), the capacity to screen from conscious awareness stimuli previously experienced as irrelevant, have been generally associated with the tendency towards psychosis. However, "failure" to screen out previously irrelevant stimuli might also hypothetically contribute to original thinking, particularly in combination with high IQ. Meta-analysis of two studies, conducted on youthful high-IQ samples, demonstrated that high lifetime creative achievers had significantly lower LI scores than low creative achievers (reffect size = .31, p = .0003, one-tailed). Eminent creative achievers (participants under 21 years who reported unusually high scores in a single domain of creative achievement) were 7 times more likely to have low rather than high LI scores, χ2(1, N = 25) = 10.69, φ = .47, p = .003. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Management after exposure to tuberculosis

The increased incidence of tuberculosis-coupled with the emergence of mycobacterial strains resistant to the most effective drugs-has highlighted the importance of identifying transmission and preventing active disease. Skin test conversion can document infection, except in most patients vaccinated with bacille Calmette-Guérin. Prophylactic medication is effective, but not without complications.     

高效单电感升降压同步稳压器使锂离子电池电压转换至3.3V更容易

引言现有便携设备最常遇到的电源问题之一是产生某个稳定的电压输出，且该输出在整个电池电压范围的中间值附近。比如，在2.5V~4.2V的锂离子电池电压范围内产生恒定的3.3V输出。解决这个问题最常用的方法是采用SEPIC结构的转换器，但SEPIC结构本身存在某些弊端，比如效率不够高、需要耦合电感和大电流反激电容等。另一种方案是一个升压转换器和一个LDO或降压转换器级联，但这种效率较低的电路并没有很好解决附加元件需要额外空间和开销的问题。Linear Technology公司的LTC3440升降压转换器不仅体积非常小巧、效率极高，而且降低了…     

Tensile crazing and shear banding of styrene A: Temperature and rate effects

Tensile yield, flow, and fracture mechanisms in styrene A (SA), a styrene-acrylonitrile copolymer rubber-modified styrene A (RMSA) have been studied and characterized into two basic types: tensile crazing and shear banding. Each can be represented by a master curve and equation over ranges of temperature and deformation rates. Each exhibits distinctive activation energy and volume values. Tensile crazing predominates in unoriented SA below 70°C, and in RMSA. Shear yielding predominates in oriented SA.     

The presentation of three-dimensional reconstructions from serial sections

A simple and effective way is described for showing particular structures in serial sections. By using waterproof inks and acetate sheets supported on a frame immersed in water and illuminated from beneath, the information from up to sixty sections can be easily visualized. This technique is particularly useful for displaying enclosed structures and by a suitable choice of colours enables special emphasis to be given to selected components. The information can be recorded simply through stereo photography.     

The presentation of three-dimensional reconstructions from serial sections

A simple and effective way is described for showing particular structures in serial sections. By using waterproof inks and acetate sheets supported on a frame immersed in water and illuminated from beneath, the information from up to sixty sections can be easily visualized. This technique is particularly useful for displaying enclosed structures and by a suitable choice of colours enables special emphasis to be given to selected components. The information can be recorded simply through stereo photography.