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Bast fibers from stems of kenaf (Hibiscus cannabinus, L.), a warm-season tropical herbaceous annual plant, were dispersed into poly-L-lactide (PLLA) matrix by melt-mixing followed by compression molding. Low fiber fractions (1–5%) were investigated. The composites showed a slight lowering of thermal stability when evaluated by thermogravimentric analysis. X-ray diffraction and differential scan...
Visual search for a colour target in distractors of two other colours is dramatically affected by the configuration of the colours in CIE (x, y) space. To a first approximation, search is difficult when a target's chromaticity falls directly between (i.e. is not linearly separable from) two distractor chromaticities, otherwise search is easy (D'Zmura [1991, Vision Research, 31, 951-966]; Bauer,...
In a recent paper in this journal, Loet Leydesdorff and Gaston Heimeriks (2001, Journal of the American Society for Information Science and Technology, 52, 1262– 1294.) argue that biotechnology develops in a self-organizational mode, through interaction between the intellectual structure and the institutional network of the research field. This claim is empirically supported by a multivariate a...
Artistic representation of the interleukin-7 receptor complex in the plasma membrane of a cell. Editorials 1237 A novel mouse model provides insights into the neutropenia associated with the ribosomopathy Shwachman-Diamond syndrome 1240 JAK kinase targeting in hematologic malignancies: a sinuous pathway from identification of genetic alterations towards clinical indications Lorraine Springuel, ...
We have previously demonstrated a decrease in baroreceptor discharge sensitivity in dogs with experimental heart failure. In the present study, we determined the sensitivity of the carotid sinus baroreceptor reflex in dogs with pacing-induced heart failure. The carotid sinus baroreceptor reflex sensitivity was determined by pressurizing one carotid sinus with all other baroreceptor and cardiopu...
We examined copy number changes in the genomes of B cells from 58 patients with chronic lymphocytic leukemia (CLL) by using representational oligonucleotide microarray analysis (ROMA), a form of comparative genomic hybridization (CGH), at a resolution exceeding previously published studies. We observed at least 1 genomic lesion in each CLL sample and considerable variation in the number of abno...
The purpose of this article is to demonstrate the utility of the large spot size (LSS) setting using a binocular laser indirect delivery system for peripheral ablation in children. One patient with bilateral retinopathy of prematurity received photocoagulation with standard spot size burns placed adjacently to LSS burns. Using a pixel analysis program called Image J on the Retcam picture, the a...
Knorr, L. & RBosler, P. (1903). Ber. dtech. chem. G"e. 36, 1278. Luck, J. M. & Wilcox, A. (1953). J. biol. Chem. 205, 859. Ohno, K. (1953). J. Biochem., Tokyo, 40, 621. Rees, M. W. (1946). Biochem. J. 40, 632. Sanger, F. (1945). Biochem. J. 39, 507. Schlesinger, H. I. (1944). Quoted by J. R. Elliott, E. M. Boldebuck and G. F. Roedel (1952). J. Amer. Chem. Soc. 74, 5049, footnote 11. Snyder, H. ...
n this project we describe a reversed-phased HPLC method that allows the simultaneous determination of the preservatives benzoic (BA), sorbic (SA) and ascorbic acids (AA) in wine and foodstuffs. The separations were effected by using a C18 varian column and a mobile phase of ammonium acetate buffer (pH 4.4) – methanol (65:35) to elute BA, SA and AA. The flow rate was 1.0 ml/min and the detector...
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