嵌段共聚物对LDPE／PS共混物的增容作用混合顺序对LDPE／SEBS／PS共混物形态的影响

混合顺序对低密度聚乙烯／（苯乙烯－乙烯／丁烯－苯乙烯）三嵌段共聚物／聚苯乙烯共混物的形态有一定的影响。研究结果表明，增容剂先与分散相混合，增容剂集中在分散相，然后与连续相混合，这样增容剂容易迁移到两相界面，具有更好的增容效果。     

Well reservoir model identification using translation and scale invariant higher order networks

This paper describes the use of higher order neural networks to identify well reservoir response models from test data. Well reservoir response models are characterised by a family of parametrically related curves. Neural networks can in principle offer an interesting approach to the identification problem as data are often uncertain and incomplete. However, it turns out that the well reservoir model, viewed as a curve in two dimensions, is invariant with respect to translation and changes of scale of the axes. This poses severe problems for a standard backpropagation network using the two-dimensional plot as an input retina. This difficulty can be overcome by using a higher order network in which the output is forced to be invariant with respect to the required transformations of the retina. In this way, the potentially huge number of weights is significantly reduced using the invariance condition as a constraint which acts so as to divide the weights into equivalence classes within which they are equal. The resulting network can then be trained using standard techniques. We contrast this network approach with classical methods of model identification.     

Alcoholism, birth order, and family size.

On the basis of Schachter's findings relating affiliation during anxiety to birth order it was predicted that later borns and persons from large families should be overrepresented among alcoholics and that the number of alcoholics within each family size should increase with increasing birth order. First borns were expected to have significantly more therapeutic contacts than later borns. It was pointed out that Schachter's analyses, based on Bakan's data, lacked, among other things, a correction for family size. When this correction was employed with birth order and family size data from a sample of 242 treated alcoholics, the only hypothesis supported was that relating to an overrepresentation of persons from large families. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

N + 1 ways not to run a railroad.

Although "attacking what I consider to be a series of simplistic fallacies in thinking about social control, it is my intention to encourage a responsible realistic discussion of the issues." One fallacy is that it is possible to establish a completely unchanging social order, a "total state" which once established will continue running in unchanging form. "A second fallacy in thinking about social control in the 'total state' is that the major problems are those of political loyalty." A third fallacy is "the tacit assumption that the problem of social control is solely one of the control of individual behavior." The determinism versus free-will controversy is irresolvable. Complete determinism "can never be proven or disproven for one reason: our knowledge is and must always be finite." (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A critical review of the approach to birth order research.

The birth order literature was reviewed in order to demonstrate that the present emphasis on birth order differences with a de-emphasis on theory has resulted in confusion. Birth order research topics reviewed were: child-rearing practices, affiliation, dependence, and conformity, intelligence and achievement, and alcoholism. Following the review, two suggestions were made concerning the direction of future birth order research. The first concerned the importance of undertaking theoretically-derived research as opposed to research focused on differences. Developmental theories, particularly those considering the family and child-rearing practices were suggested. The second concerned the value of a moderator variable (Ghiselli, 1963) in birth order research. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Similarity of performance as influenced by interaction, self-esteem, and birth order.

"This study concerns the relationship between the amount of interaction between two persons in a group and the acquisition by one of the persons of an attribute of the other. It is hypothesized that the greater the interaction between the two, the more will one acquire an attribute of the other… . Twenty groups of six subjects each (all college students) were formed to carry out a word assembly task so arranged that one of the six would be the center of the interaction." The findings were that similarity to the performance of the central figure was noted for the groups in general. Even more so, the factors of degree of prior attraction to the central figure, degree of prior acquaintance among Ss, S's self-esteem, and S's order of birth in their family influence the experimental behavior. Low attraction, minimal prior acquaintance among Ss, higher self-esteem, and those born later in the sibling series facilitated S's performance in the task. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Birth order, need achievement, and conformity.

"… first born persons have a higher need for achievement than later born persons; first born females exhibit greater resistance to influence… and first born males exhibit less resistance to influence than later born males." The results are explained in terms of the psychological significance of order of birth. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Types as Graphs: Continuations in Type Logical Grammar

Using the programming-language concept of continuations, we propose a new, multimodal analysis of quantification in Type Logical Grammar. Our approach provides a geometric view of in-situ quantification in terms of graphs, and motivates the limited use of empty antecedents in derivations. Just as continuations are the tool of choice for reasoning about evaluation order and side effects in programming languages, our system provides a principled, type-logical way to model evaluation order and side effects in natural language. We illustrate with an improved account of quantificational binding, weak crossover, wh-questions, superiority, and polarity licensing.     

多硝基吡啶的密度泛函理论研究

在B3LYP/6 31++G 理论水平上优化了一系列多硝基吡啶的几何构型,计算了它们的电子结构、分子摩尔体积和标准摩尔热力学性质。结果表明,在吡啶的2、6位引入硝基,环上C—N键变短,而在吡啶的3、4位引入硝基和2、6位引入氨基都对环上C—N键影响很小。氨基的引入可使与C—NH2相邻的C—NO2键级增大。在B3LYP/6 31++G 水平上,Mulliken集居数分析方法不适合于吡啶类化合物原子净电荷的计算,而自然集居数分析方法是比较适用的。3,5 二氨基 2,4,6 三硝基吡啶的理论计算密度达到了2.2g·cm-3,并且它的C—NO2键级略小于DATB,预示着其为高密度低感高能炸药。