PROCEDURAL, SITUATIONAL, AND INTERPERSONAL VARIABLES IN INDIVIDUAL INTELLIGENCE TESTING.

A NUMBER OF CONCLUSIONS EMERGE FROM THE REVIEW OF RESEARCH IN THE FIELD OF INDIVIDUAL INTELLIGENCE TESTING. DEPARTURES FROM STANDARD PROCEDURES ARE MORE LIKELY TO AFFECT SPECIALIZED GROUPS THAN NORMAL GROUPS. SUSCEPTIBILITY TO SITUATIONAL VARIABLES, ESPECIALLY DISCOURAGEMENT, APPEARS MORE FREQUENTLY WITH YOUNGER THAN WITH OLDER SS. RAPPORT IS AN IMPORTANT VARIABLE IN THE E-S RELATIONSHIP. E DIFFERENCES OCCASIONALLY APPEAR, BUT REASONS FOR THE DIFFERENCES ARE NOT CLEAR. E'S EXPERIENCE IS USUALLY NOT A CRITICAL VARIABLE. WHITE ES MAY HAVE SOME SUBTLE DELETERIOUS EFFECT ON NEGRO SS' SCORES, BUT THE EVIDENCE IS NOT DEFINITIVE. INADEQUATE RESEARCH DESIGNS CHARACTERIZE MANY STUDIES ON E DIFFERENCES. A COMBINATION OF MAN AND MACHINE TEST ADMINISTRATION MAY SOLVE SOME OF THE PROBLEMS ENCOUNTERED IN INTELLIGENCE TESTING, BUT MANY QUESTIONS REMAIN UNANSWERED. (3 P. REF.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

KNOWLEDGE TRANSFORMATION

The transformation of knowledge bases from one expert system tool to another raises several issues: transformation of the syntax, adaptation to a different inferencing procedure, conservation of the knowledge, testing and evaluation of the transformed knowledge base, and its comparison to the original. The solutions for these issues were developed during the transformation of six expert systems originally developed with PC+, a parameter-driven expert system tool and one expert system developed with KES-HT, a hypothesis and lest expert system tool, into a forward-chaining pattern-matching tool: CLIPS.     

COMPUTER SIMULATION OF A CYBERNETIC MODEL OF MAN IN HIS CULTURAL ENVIRONMENT

There have been many attempts over the past few years by psychologists, philosophers, mathematicians, scientists, computer scientists, and others to contribute to the social realm by offering their expertise in solving the problems confronting society and individual man. A few years ago Fred J. Ricci wrote an article [21], in which a model of a human was attempted based on computer theory and verified with experimental findings. This paper is an extension of that work including a model on a hybrid computer that can be displayed on a modern display system (CRT). The model and research discussed in this paper is based on the principles of cybernetics and lend to conclusions which show the relationship between man's reflective and logical thought processes. Experimentation is carried out using the model developed to show the relationship of a time varying cultural environment, the input man receives from his sensors and the resultant action taken. The paper also reviews other feedback models related to behavior.     

Memories, Reflections, and Dreams

The author draws on his career by referring to (a) the type of knowledge which engineers acquire and lose over time, and (b) the importance of socio-economic and environmental aspects of civil engineering projects.
In Memories , he recalls particular incidents in thirty countries and being confronted by unfamiliar cultures, and follows two vital threads which are woven into his experience, namely human nature and mother nature.
Reflections , based upon adult education, reveal aspects of the psychological understanding of human nature and the importance of biological diversity. The author finds some areas of apparently unresolved conflict between civil engineering and the environment.
Finally, in Dreams , the author quotes a United Nations set of priorities which provide a satisfying guide to the broad view of world developments and which can help to show the importance of biological and cultural diversity.     

Lipoxygenase in Sweet Corn Germ: Isolation and Physicochemical Properties

Off-flavor and off-aroma development, which may be catalyzed by lipoxygenase (LPO), are common in frozen stored sweet corn. Lipoxygenase activity in the germ fraction of sweet com (Zea nruys L. cv. Jubilee) was determined and compared with that in the degermed fraction. Lipoxygenase activity/g germ was about three times greater than that of the degermed fraction, Optimized procedures for isolation of lipoxygenase from the germ fraction were developed. Lipoxygenase was isolated by preparation as an acetone powder, extraction with 0.2M TrisHCI, pH 8.0 (4°C), fractionation with 40–60% saturated ammonium sulfate and dialysis. Optimum pH was 6–7 and temperature 50°C for activity of partially purified lipoxygenase. The enzyme appeared stable at pH 5–8 and ～90% of original activity was inactivated after heating in pH 7 buffer at 70°C for 3 min.     

RESIDUAL PECTINESTERASE ACTIVITY IN DEHYDRATED ONION AND GARLIC PRODUCTS

During the dehydration of onion and garlic products, use of high temperatures is undesirable due to the potential loss of aroma and flavor characteristics. As a consequence, residual pectinesterase (PE) activity may be found in these dehydrated spices. This study reports the presence of PE activity in raw onions and in dehydrated onion and garlic products. Pectinesterase activity is higher in the raw onion stem disks, and dehydrated products made from this tissue, than in the bulbs. Dehydrated onion products induced gelation of citrus pectin solutions and tomato purees. Although some inactivation of PE in dehydrated onion water suspensions and extracts was observed after 10 min at 50C, complete inactivation required 2 min at 82C. Commercial dehydration operations may require reevaluation to eliminate residual PE activity in dehydrated onion and garlic products.     

用于改善5GHz以上信号传输完整性的多层板用材料

对于高速数字和其它类似的系统来说,能够提供低的Dk值和低损耗特性的材料已经成为一个基本要素。对原始设备制造商而言,在某种意义上,在一个高层数板设计中得到一个能够提供完美的信号完整性的解决方案已经成为“神圣之杯”。在很多新设计中,传统的环氧/玻纤材料已经不能满足电气特性的要求。生产高速光学路由器、开关、网络、服务器等的原始设备制造商都需要具有低介电常数(Dk)和损耗因子(Df)的材料来进一步提高产品性能。通过用更薄的介质层厚度来保证特性阻抗值,更低的介电常数可以允许更快的信号传输速度和更高的封装密度。更高的损耗…     

SHAPE OPTIMIZATION WITH ADAPTIVE MESH REFINEMENT: TARGET ERROR SELECTION STRATEGIES

The multi-point approximation method in conjunction with Adaptive Mesh Refinement (AMR) for shape optimization of thin-walled structures is studied. Application of AMR is done in such a manner that in the beginning of an optimization process large discretization errors are accepted, while finite element discretizations become more accurate as the optimization process progresses. In this paper several strategies for selecting the target discretization errors are investigated. Special attention is paid to both the overall computational effort and the convergence of the optimization processes.     

A Method for the Analysis of ATP Metabolites in Beef Skeletal Muscle by HPLC

A method to determine inosine, hypoxanthine, NAD, AMP, IMP, IDP, ADP, adenylosuccinic acid, ITP and ATP contents in postmortem muscle by HPLC has been developed. The method consists of an homogenization of the muscle in 0.5M HClO₄ or 10% TCA, extraction of the compound with 0.5M tri-n-octylamine/Freon 113 and single injection chromatography on a Whatman Partisil-10/25 SAX column.