一种新型混凝土建筑

作为应用最广泛的建筑材料,混凝土是一种可以用来建造几乎所有几何形状的结构的流体。然而,伴随着大量的碳排放,混凝土流体被浇筑成刚性棱柱状模型来建造消耗大量材料的结构,而混凝土独特的流动性却很少被利用。文中论证了如何用低消耗的织物片材的柔性系统代替常规的正交模板,以便利用混凝土的流动性,为高度优化的、有建筑学趣味性的建筑形式提供特别的可能性。     

The supervisee experience of group supervision: Implications for research and practice.

Group supervision is commonly employed in graduate psychology training but has received insufficient attention in research. Supervisees' own perceptions and experiences in group supervision can provide valuable information in guiding our understanding and exploration of the benefits and uses of this form of training. This paper reviews 11 empirical studies exploring supervisee perceptions of group supervision experiences. Research, to date, appears to be largely in line with conceptual hypotheses regarding the benefits of group supervision experiences, and implications are discussed with regard to current practice. However, this review also points to the need for more in-depth and advanced research efforts in the area that can further explore supervisee experiences and identify means of optimizing this experience as a component of clinical training. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Depression and anxious apprehension distinguish frontocingulate cortical activity during top-down attentional control.

A network consisting of left dorsolateral prefrontal cortex (LDLPFC) and dorsal anterior cingulate cortex (dACC) has been implicated in top-down attentional control. Few studies have systematically investigated how this network is altered in psychopathology, despite evidence that depression and anxiety are associated with attentional control impairments. Functional MRI and dense-array event-related brain potential (ERP) data were collected in separate sessions from 100 participants during a color–word Stroop task. Functional MRI results guided ERP source modeling to characterize the time course of activity in LDLPFC (300–440 ms) and dACC (520–680 ms). At low levels of depression, LDLPFC activity was indirectly related to Stroop interference and only via dACC activity. In contrast, at high levels of depression, dACC did not play an intervening role, and increased LDLPFC activity was directly related to decreased Stroop interference. Specific to high levels of anxious apprehension, higher dACC activity was related to more Stroop interference. Results indicate that depression and anxious apprehension modulate temporally and functionally distinct aspects of the frontocingulate network involved in top-down attention control. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Understanding how children understand robots: Perceived animism in child–robot interaction

Centuries ago, the existence of life was explained by the presence of a soul (Tylor, 1871). Known as animism, this term was re-defined in the 1970s by Piaget as young children's beliefs that inanimate objects are capable of actions and have life-like qualities. With the development of robots in the 21st century, researchers have begun examining whether animism is apparent in children's impressions of robots. The purpose of this study was to use a model of knowledge structures, or schemata, to examine whether children attribute human qualities of cognition, affect, and behavior to a robot. An experiment was set up at a science center located in a major Western Canadian city, and visitors to the center were invited to participate. A total of 198 children ages 5–16 years (M=8.18 years) with an approximate even number of boys and girls were included. Children completed a semi-structured interview after observing a robot, a small 5 degree of freedom robot arm, perform a block stacking task. Answers to the nine questions about the robot were scored according to whether they referenced humanistic qualities. Results from frequency and content analyses suggest that a significant proportion of children ascribe cognitive, behavioral, and especially affective, characteristics to robots.     

Solubility of celecoxib in N-methyl-2-pyrrolidone+water mixtures at various temperatures: Experimental data and thermodynamic analysis

Solubility is one of the most significant physicochemical properties of drugs, and improving the solubility of drugs is still a challenging subject in pharmaceutical sciences due to requirements of enhancing their bioavailability. Celecoxib, according to the biopharmaceutics classification system (BCS), is a class 2 drug, possessing low water solubility (<5 μg·mL^?1) and high permeability. Increasing the solubility of this group can lead to improved bioavailability, dose reduction and subsequently, increased efficiency and reduced side effects. In this study, celecoxib solubility was determined in binary mixtures of N-methyl-2-pyrrolidone (NMP)+water at 293.2, 298.2, 303.2, 308.2 and 313.2 K. The solubility of celecoxib is increased with the addition of NMP to the aqueous solutions and reaches a maximum value in neat NMP. In addition, increased temperature leads to enhanced solubility of celecoxib in a given solvent composition. The solubility data of celecoxib in NMP+water at different temperatures were correlated using different mathematical models including, the Jouyban-Acree model and a combination of the Jouyban-Acree and van’t Hoff models. Thermodynamic parameters, Gibbs energy, enthalpy and entropy of dissolution processes were performed based on Gibbs and van’t Hoff equations. Thermodynamic analysis allowed observing two main entropy or enthalpy-driven dissolution mechanisms, varying according to the composition of aqueous mixtures. Moreover, preferential solvation of celecoxib by water is observed in water-rich mixtures but preferential solvation by NMP was seen in mixtures with similar composition and also in NMP-rich mixtures.     

ASTM培训项目：网络视频培训和强化培训

ASTM国际标准组织为其会员和标准使用者提供多种培训，较新的培训形式当属网络视频培训和强化培训。     

Planning Gains,Providing Homes

Planning gain has long been used in Britain for infrastructure funding and has been increasingly used to secure land and funding from private developers for new affordable homes. This paper examines the theoretical and policy underpinnings of planning gain. It describes the growth in the number of new affordable, including intermediate, homes delivered through planning gain, the variations between planning authorities in the incidence of planning gain and the value of the contributions developers make. In the light of the environment after the credit crunch it considers the extent to which planning gain mechanisms can any longer deliver new affordable homes.