ATTACHMENT OF CERTAIN BACTERIAL STRAINS TO CHICKEN AND BEEF MEAT

The attachment of bacteria to chicken and beef meat with and without fascia was studied. It was found that bacteria attach readily to the meat surfaces. The kinetics of attachment depend on the bacterial strain, as well as on the meat surface. Of the bacteria tested, Pseudomonas EBT/2/143 attached most readily to all meat surfaces examined. Chicken breast with fascia was the best surface for attachment.
A study was also made of the effects of storage on the multiplication of the attached bacteria and the feasibility of removing them. A high level of Salmonella infantis was found in comparison to the other bacteria after 24 h of storage at 20°C.
More investigations are needed to find out whether other serotypes of salmonellae will multiply to similar levels on these surfaces.
After micro-colonies began to form, the newly generated bacteria were easy to remove. The hygienic consequence of this phenomenon is discussed.     

AN EVALUATION OF OVERLOAD MODELS ON THE RETARDATION BEHAVIOR IN A Ti-6A1–4V ALLOY

Abstract— Fatigue crack retardation behavior due to an overload under different overload ratios and different crack lengths in a Ti-6A1–4V titanium alloy has been investigated. The effect of some major factors on retardation behavior is discussed as a result of an interaction between the overload and cyclic loads. It is suggested that the retardation process may be divided into five stages. From an analysis of the modes of fatigue fracture, the overload in these tests can be regarded as occurring under plane strain conditions or a mixed mode in which the plane strain condition predominates. Thus, at a given overload ratio the number of delay cycles N_D caused by an overload decreases with an increase of K₀₁ under these plane strain conditions.
In this paper, the Wheeler, Willenborg, Maarse and Matsuoka models were selected for comparison with regard to engineering applications. An evaluation of their ability to predict life has been made. The Matsuoka model based on the crack closure concept was found to be in good agreement with experimental results. It is also recognized that the experimental values of the effective overload zone size are considerably greater than the calculated values suggested by the above mentioned models.     

Temperature Measurement of Glass by Radiation Analysis

In a previous work, the possibility of determining the general aspect of the vertical temperature distribution of a glass layer from analysis of both total and spectral emitted brilliancy was shown. The theoretical analysis has been developed further in the present paper. A numerical and graphical calculation method, devised by Czerny and Walther, is used. The analytical solution of the brilliancy integrals is also discussed. If the conditions for analytical integration are realized and if the vertical temperature distribution is assumed to follow a linear or quadratic law, this distribution can be calculated on the basis of a few radiation measurements. One measurement was made in the region beyond 4.2 μ the others were made in various spectral regions ranging from 0 to 4.2 μ to which associated values of the glass absorption coefficient correspond, according to the temperature. Close agreement was obtained between measured and calculated temperatures.     

BASIC ELEMENTS IN THE PROCESS OF PSYCHOTHERAPY: A RESEARCH STUDY.

TESTED THE HYPOTHESIS, BASED ON CLIENT-CENTERED THEORY, THAT MOVEMENT IN THE CLIENT'S PROCESS BEHAVIOR (MANNER OF PROBLEM EXPRESSION, DEPTH OF PERSONAL EXPLORATION, AND MANNER OF RELATING TO THE THERAPIST) IS POSITIVELY RELATED TO THE LEVEL OF THE THERAPIST CONDITIONS (CONGRUENCE, EMPATHIC UNDERSTANDING, AND POSITIVE REGARD) AND TO CASE OUTCOME (PRE- TO POSTTEST CHANGES). SS WERE 15 HOSPITALIZED SCHIZOPHRENIC THERAPY CASES. THERAPIST CONDITIONS AND PATIENT PROCESS VARIABLES WERE RATED FROM TAPE-RECORDED SEGMENTS OF THERAPY INTERVIEWS. IT WAS FOUND THAT PATIENT PROCESS MOVEMENT OVER THERAPY WAS NOT RELATED TO LEVEL OF THERAPIST CONDITIONS NOR TO CASE OUTCOME. LEVEL OF THERAPIST CONDITIONS AND LEVEL OF PATIENT PROCESS BEHAVIOR WERE POSITIVELY RELATED TO CASE OUTCOME AND TO THE PERCEPTION OF THERAPIST CONDITIONS BY THE PARTICIPANTS. SPECIFIC LEVELS OF THERAPIST AND PATIENT BEHAVIOR WERE ASSOCIATED WITH SUCCESSFUL OUTCOME. (20 REF.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Ferrimagnetic Resonance Line Widths and Phase Distributions in Sintered Yttrium Iron Garnets

Iron-rich phases in yttrium iron garnet specimens are easily detected by microscopic examination. These phases form as pockets in the yttrium iron garnet matrix at low sintering temperatures but are swept into grain boundaries at higher temperatures. The dependence of ferrimagnetic resonance line width on composition and sintering conditions is given. Low line widths are realized when gas-generation problems are controlled. Line widths as low as 15 oersteds have been obtained.