Applications of Conformal CVD Diamond Films

A method for enhanced nucleation of diamond growth on non-diamond substrates is introduced via the results obtained in a wide variety of applications. The exact details of the method are still proprietary, but the outcome, as demonstrated in this paper, is unique and promises to be of great practical use. The main feature of the growth following the nucleation step is a very high density of nucleation sites which instantly started to grow over any structured surface in a perfectly conformal fashion.     

The time-course of analytic psychotherapy: A semiotic phenomenonology.

The distinctness and linear order of "beginning" and "termination" in analytic psychotherapy is questioned by examining therapy as a process of multiple transitions between experience and hermeneutic representation. It is argued that critical points (CPs) such as beginning and termination may be established at the level of experience, but must be rendered relative at the level of representation, to allow the therapeutic discourse semiotic freedoms essential for its development. This approach subjects CPs to a "middleness principle", whereby all phases of therapy must be analyzed according to the way they connect to preceding and subsequent experience. Such analysis is afforded by redefining CPs according to the way they shape the therapeutic discourse, which is illustrated in fragments of therapeutic conversation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Does wild-type p53 play a role in normal cell differentiation?

The integrin family consists of broadly expressed cell surface adhesion receptors, each member of which is composed of a non-covalently linked alpha/beta heterodimer. Integrin receptors are involved in the interaction with matrix proteins and may contribute to invasion and metastasis of carcinomas. To examine the biological role integrins play in colorectal carcinoma we compared the expression of integrin alpha- and beta-subunits in situ and in vitro. Eight newly established cell lines derived from immunohistochemically characterized colorectal carcinomas together with two sublines obtained after nude mouse passage and the commonly used colon carcinoma lines HT-29, SW480, SW620, and COLO 205 were investigated by immunocytochemistry and flow cytometry. The carcinomas in situ expressed alpha 1-, alpha 2-, alpha 3-, alpha 6-, alpha v- and beta 1-subunits in variable amounts while being devoid of alpha 4, alpha 5, and beta 3. The individual integrin profile of the tumour in tissue was essentially maintained in vitro. However, a neo expression of the alpha 5 chain was found, together with an induction or increase in alpha 1, alpha 2, alpha 3, alpha v and beta 1 levels. No decrease in integrin subunit expression was observed. Standard-serum and serum-free medium revealed no striking differences in alpha- and beta-chain expression in the cell lines HT-29 and COLO 205. In serum-free medium, SW480 showed a slight increase of alpha 1 and alpha 5 and a decrease of alpha 3 and alpha v while SW620 expressed more alpha 1. We conclude that the great variability of adhesion receptor expression of the integrin family in colorectal carcinomas in situ is essentially maintained in vitro, although culture conditions which are only marginally influenced by serum factors unpredictably lead to some increase in expression or even induction of several integrin subunits.     

Membrane theory treatment of eccentric flows in concentric hoppers

This paper presents an initial study of the effects of an accidental eccentric flow channel that sometimes develops in the conical hopper of a metal storage silo. A simple assumed pressure regime is adopted, based on studies of eccentric discharge in cylindrical silos, and the structural actions are analysed using shell membrane theory. The results are verified against a finite element analysis. A set of equations is derived which give the complete membrane stress state in the hopper under such an unsymmetrical pressure regime.     

Review of The technique of psychotherapy.

Review the book "The technique of psychotherapy," by Lewis R. Wolberg (see record 1954-08774-000). This is not the case with The Technique of Psychotherapy. It provides one of the most remarkably comprehensive discussions of specifically what to do in psychotherapy that is currently available. The range and specificity of the topics covered is truly astounding. The topics covered deal with almost every conceivable question that the beginning therapist might ask an expert. This book is remarkable not only in the comprehensiveness of its coverage of specific aspects of therapy but also in the flexibility and freedom of dogmatism of the writer. Wolberg's position appears to be best described as eclectic-psychoanalytic. Wolberg has something good to find in all varieties of psychotherapy. Insight therapy, catharsis, re-education, environmental manipulation, support, reassurance, hypnosis, dream interpretation, free association, and persuasion all have their place for different kinds of therapy and for different kinds of cases. It will be useful in teaching psychotherapy and as a reference for those who practice psychotherapy. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Structure analysis of conductive polymer systems: Poly-4-vinylpyridine and poly(butadiene-b-4-vinylpyridine) with 7,7′,8,8′-tetracyanoquinodimethane

Summary The structure analysis of two conductive polymer systems-poly-4-vinylpyridine and poly(butadiene-b-4-vinylpyridine) with 7,7′,8,8′-tetracyanoquinodimethane (TCNQ)-was done by X-ray diffraction, scanning tunneling microscopy (STM) and FTIR. The charge transfer complex formed between the pyridine group and the known electron acceptor, TCNQ, is supposed to be the conductive element in these systems. In order to understand the structure of this complex, a model compound, the complex of 4-ethylpyridine (4EP) with TCNQ, 4EP/TCNQ₂, was studied by the mentioned methods. It appears that there are two crystalline modifications of the model compound with different type of stacks of the TCNQ molecules. In polymer systems only one type of the complex is dominant as revealed by joint analysis of X-ray diffraction diagrams, STM and FTIR data. In the STM image of the polymer surface one can distinguish that molecular stacks with periodicities of 4.1 ? in a row are separated (12.5?) from each other. Such organization is similiar to the one observed in conductive charge transfer complexes such as tetrathiofulvalene (TTF) with TCNQ. The ordered molecular domains are scattered on the polymer surface and take part in the formation of the conductive network.