Basic structure-function relations of the epicardial coronary vascular tree Basis of quantitative coronary arteriography for diffuse coronary artery disease

Presented by Mitch Allen, software CTO, Palm Inc. Beginning with an overview of the basic webos appl...

Mitch Allen, software CTO of Palm, Inc, begins this webcast with an overview of the basic webos appl...

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Lecture Series on Basic Electronics by Prof. TSNatarajan, Department of physics, IIT Madras For more...

Lecture Series on Basic Electronics by Prof. TSNatarajan, Department of physics, IIT Madras For more...

Lecture Series on Basic Electronics by Prof. TSNatarajan, Department of physics, IIT Madras For more...

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The basic structure doctrine is the judge-made principle tha...

The Molecular structure of Nucleic Acids: A Structure for De...

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The BP Structure, also known as Gebel Dalma, is an exposed i...

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A basic protein has been purified from the CNS myelin of the gummy shark (Mustelus antarticus). Electroblotting was used to examine the capacity of rabbit antisera raised against this electrophoretically pure protein to recognize myelin basic protein from higher vertebrates. The antisera bound to two shark proteins including the original polypeptide antigen and to chicken, bovine, and human myelin basic proteins. Thus, the shark protein appeared to possess antigenic determinants that have been retained through evolutionary divergence of these p...

PAC BOUNDS AS A STARTING POINT ffl Let H be a set of f\Gamma 1; 1g valued functions. ffl The growth function BH (m) is the maximumcardinality of the set of functions H whenrestricted to m points. ffl Consider a plot of the log of the growth function log2(BH (m)) as a function of m: d COLT'99 3 Vapnik Chervonenkis dimension ffl The Vapnik-Chervonenkis dimension is the pointat which the graph stops being linear: VCdim(H) = maxfm: for some x1; : : : ; xm; for all b 2 f\Gamma 1; 1gm; 9hb 2 H; hb(xi) = big ffl For linear functions L in R n, VCdim(L)...

Structure-based drug design is still a difficult achievable goal because many parameters describing non-covalent intermolecular interactions are known with insufficient accuracy. Here, we describe an example of a structural analysis of 5-substituted 2'-deoxyuridines and investigate if this analysis can be used to predict new molecules with antiviral activity. The target enzyme is the thymidine kinase of herpes simplex virus type. The physicochemical analysis of the 5-substituent demonstrate where substituents may be introduced and how the elect...

The series of tetranuclear zinc(II) carbamato complexes (Zn(4)O)(O(2)CR)(6), (1, R = diethylamino; 2, R = piperidino; 3, R = pyrrolidino) was prepared. Complexes 2 and 3 were crystallographically characterized and shown to have the same tetrahedral Zn(4)O(6+) core. Complex 2 crystallizes in the cubic space group I(-)43d, a = 24.0131(5) A, V = 13846.6(5) A(3), R(1976 observed reflections) = 0.0194, and GOF = 1.013. Complex 3 crystallizes in the triclinic space group P(-)1, a = 10.3178(6) A, b = 10.6962(6) A, c = 19.5130(11) A, alpha = 81.9070(10...

The spermatic protein of chromatin I2 of squid Illex argentinus was separated by HPLC into two components I2-1 and I2-2. Amino acid sequences of the major portion of protein I2-1 (52 residues) and the N-terminal sequence of protein I2-2 (21 residues) were determined. Arginines in protein I2-1 are arranged in clusters typical of protamines; the first cluster is in the N-terminus, the longest heterogeneous basic cluster is in the central part of the protein chain, the C-terminal part of the molecule contains two clusters of three hydroxyamino aci...

The capacity of myelin basic protein or of poly-L-lysine to promote leakage of carboxyfluorescein from vesicles or the aggregation of vesicles was studied. The vesicles were composed of phosphatidylcholine as the sole or major lipid component. Addition of 10% sphingomyelin, 10% phosphatidylglycerol, 10% egg or bovine brain phosphatidylethanolamine, or 30% dodecanal had relatively little effect on the extent of carboxyfluorescein release in the presence of either myelin basic protein or poly-L-lysine. In contrast with these results, the extent o...

A novel series of endothelin-A (ET(A)) selective receptor antagonists having a 2H-chromene skeleton are described. A lead compound, 2-(benzo[1,3]dioxol-5-yl)-2H-chromene-3-carboxylic acid (3), was found by modifications of our own angiotensin II antagonist. A structure-activity relationship (SAR) study of 3 reveals that the structural requirements essential for potent and selective ET(A) receptor binding affinity are the m,p-methylenedioxyphenyl, carboxyl, and isopropoxy groups at the 2-, 3-, and 6-positions, respectively, on the (R)-2H-chromen...

The complete amino acid sequence of a basic proline-rich protein, IB-9, from human parotid saliva was determined by automated Edman degradation of peptides obtained by enzymatic cleavage of the intact protein with clostripain. The protein was digested with papain and elastase to obtain overlapping peptides. Automated Edman degradation of the intact protein was also performed. The protein consists of 61 amino acids, of which 26 are proline residues. The partial sequence of another human parotid basic proline-rich protein, IB-6, was also obtained...

The effect of deimination of arginyl residues in bovine myelin basic protein (MBP) on its susceptibility to digestion by cathepsin D has been studied. Using bovine component 1 (C-1) of MBP, the most unmodified of the components with all 18 arginyl residues intact, we have generated a number of citrullinated forms by treatment of the protein with purified peptidylarginine deiminase (PAD) in vitro. We obtained species containing 0-9.9 mol of citrulline/mol of MBP. These various species were digested with cathepsin D, a metalloproteinase which cle...

Abstract The "foliage cluster (FC) model" shows that the size (the amount of leaves, number of yearly shoots and total twig length), turnover time, and branching (i.e., forking) structure of a twig becomes stable in the top of the crown in an oak species by forming a "stable FC". A stable FC can be treated as a basic component of the crown structure and as an alternative to individual leaf or current-year shoot. The FC model is composed of several equations approximating the branching structure of twigs. Differences in size and branching morph...

Abstract The "foliage cluster (FC) model" shows that the size (the amount of leaves, number of yearly shoots and total twig length), turnover time, and branching (i.e., forking) structure of a twig becomes stable in the top of the crown in an oak species by forming a "stable FC". A stable FC can be treated as a basic component of the crown structure and as an alternative to individual leaf or current-year shoot. The FC model is composed of several equations approximating the branching structure of twigs. Differences in size and branching morph...

Together the two rat kidneys accumulated a total of 31.7 +/- 1.6% of the intravenously injected amount of 7 nmoles egg-white-lysozyme (measured as iodine 125 lysozyme) within 10 min. The low molecular weight protein lysozyme and other basic substances were injected simultaneously in order to evaluate whether these basic substances can inhibit the renal lysozyme accumulation. The inhibitory effect of various basic compounds was dose-dependent with a maximal reduction of lysozyme accumulation to 11.7 +/- 0.08%. The basic substances could be divid...