Juvenile gastrointestinal polyposis

Two cases of juvenile gastrointestinal polyposis are described and the literature is reviewed. Despite the benign nature of the individual polyps, the disease has a poor prognosis. Of 13 reported patients, 4 had macrocephaly, and one of the authors' 2 patients had large peripheral intracranial cysts. This appears to be the first reported documentation of the etiology of macrocephaly associated with juvenile polyposis. Major clinical problems are related to severe loss of blood and protein from the gastrointestinal tract.     

In vitro studies on the way in which the activation of factor VIII is affected in mixtures of plasma with hemophilia A plasma

Factor VIII exchange test experiments with hemophilia A plasmas were performed to find out how the results were affected by submitting plasmas and plasma mixtures to different incubation periods at 37 degrees C, heat precipitation, and ether extraction. The experiments led to the following results: 1. In plasma mixtures, frequently higher factor VIII activities are found than can be expected from the single activities of the used plasmas. Activity increases are factor-specific. 2. The component to be activated is in the hemophilic plasma; the activity-increasing agent is in the normal plasma. These results lead to the hypothesis that hemophilia A patients have sufficient quantities of inactive factor VIII, but it stays inactive for lack of the necessary activator. In normal plasma the activator is in balance or surplus to the inactive factor. By adding normal plasma, thus supplying free activator, the inactive factor VIII of hemophilia A plasma can, under suitable conditions, be developed into active factor VIII.     

Analysis of alkaloid mixtures by charge-transfer complexation

Binary mixtures of weak and strong UV-absorbing alkaloids were analyzed by a charge-transfer spectrophotometric method, utilizing iodine in ethylene dichloride as the acceptor. In the uncomplexed form, the strong absorbing alkaloid (papaverine, quinine, ergotamine, or reserpine) was measured at a wavelength where there was no interference from weak absorbers (at 335, 332, 315, or 300 nm, respectively). The weak absorbing alkaloid (ephedrine, codeine, atropine, or homatropine methylbromide) was determined by computing its contribution to the total charge-transfer band at 295 nm where absorbance was linearly additive for mixtures. The greater increase in the original epsilon-values of the weak absorbers upon complexation with iodine relative to the corresponding increase in the epsilon-values of the strong absorbers led to good recoveries even at the low dose ratios of the weakly absorbing, and often more potent, alkaloids.     

Multiple congenital defects associated with trisomy for long arm of No. 4

The most prevalent microorganisms isolated from urine specimens of dogs (385) and cats (132) with clinical signs of urinary tract infections were Escherichia coli, Proteus spp., and Staphylococcus aureus. The results of quantitative urine-culturing methods showed 48.6% of the canine and 12.1% of the feline specimens had more than 10(5) organisms per ml of urine. The bacteria isolated appear to have a greater resistance to antibacterial agents than previously reported.     

Comparative psychotherapy: Rational-emotive therapy versus systematic desensitization in the treatment of stuttering.

15 male and 5 female patients (mean age, 28 yrs) at a speech and hearing center were given either no treatment or 8 45-min intensive rational-emotive (R-E) or systematic desensitization (SD) therapy sessions with or without in vivo tasks. In vivo behavioral tasks included 5 telephone calls to persons defined as significant acquaintances by Ss and 5 spontaneous discussions with relative strangers. Assessment measures (TAT, Institute for Personality and Ability Testing Anxiety Scale, and Iowa Scale of Attitudes Toward Stuttering) were administered before, immediately and 1 mo after treatment. R-E therapy was more efficacious than SD in reducing stuttering behavior as well as accompanying anxiety and negative attitudes toward stuttering. SD, however, did fare better than no treatment (control) in reducing speech disfluencies. The inclusion of in vivo tasks did not have consistent effects across all criterion measures but did add to both therapies in influencing attitudes toward problem speech in the desired directions. Results favor a cognitive-behavioral approach to stuttering over a traditional behavioral approach. (15 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Independent masculinity and femininity scales on the California Psychological Inventory.

Obtained California Psychological Inventory responses of 159 male and 128 female college students. A 4-fold typology of sex roles was constructed: The minimum raw scores for males high on MSC (masculinity) and FMN (femininity) were 46 and 28, respectively; for females, 33 and 35. Maximum scores for males low on MSC and FMN were 38 and 23; for females, 29 and 31. The high-masculine/low-feminine person is regarded as the most psychologically healthy of the 4 types. This view resembles the notion of androgyny, with emphasis on balance. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Hydrogenation of brown coal. 2. Iron-based catalysis

Some of the inherent cations of Victorian brown coals have been exchanged for iron by treatment with solutions of iron salts. Coals with various iron contents are obtained by variation of the pH of the solutions used. Hydrogenation of coals treated in this way at 395 °C, and an initial hydrogen pressure of 10 MPa, give product yields similar to those obtained using commercial cobalt molybdate on alumina catalysts, and greater than those obtained using red mud as a catalyst. The increase in yields compared with non-catalysed experiments results mainly from increased production of asphaltenes. The amount and composition of gas (80–90 wt% C0₂, resulting from decarboxylation) remains constant. Despite the similar conversions, the hydrogen consumption and tetralin/naphthalene ratios for iron-catalysed experiments are less than for cobalt—molybdate-catalysed experiments.     

Banded structures in oriented thermotropic polymers

Drawn fibres and shear-oriented thin films of four thermotropic liquid crystalline polymers have been examined using polarized light optical microscopy and transmission electron microscopy. A banded structure is observed in polarized light, with the striations lying perpendicular to the fibre axis or shearing direction. This structure closely resembles those previously reported in lyotropic polymers, suggesting that the supramolecular organization implied by the banded structure is a feature characteristic of oriented liquid crystalline polymers in general.     

Design of a positive resist for projection lithography in the mid-UV

The design, synthesis, formulation, and process optimization of a new mid-UV resist are described. The synthesis of a spectrally matched sensitizer was guided by semiempirical quantum mechanical calculations that predict the effect of structural changes on optical absorption characteristics. The formulation was guided by computer profile simulation studies and the process development by a response surface analytical procedure. These techniques allowed formulation optimization to be achieved on the basis of an understanding of the complex interactions between the resist dissolution response functions and the modulation transfer function of the exposure tool for which the resist was designed.