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Vibration of a Euler-Bernoulli uniform beam carrying a rigid body at each end
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Abstract Publications on the vibration of a Euler-Bernoulli beam carrying thin discs at the ends are available. In this paper the thin discs are replaced with rigid bodies, whose axial width is included in the analysis. The centre of mass of the bodies is assumed to be on the beam axis but away from the beam end. Among the boundary conditions considered are: the classical clamped, pinned, sliding of free; the lateral translation and rotation of an unrestrained rigid body; the translation and/...
Related newspaper, magazine, and journal articles from HighBeam Research
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POLYHEDRAL MONOCARBABORANE CHEMISTRY. FUNCTIONALITY AND ISOMERISM: REACTIONS OF THE [6-Ph-nido-6-CB^sub 9^H^sub 11^]^sup -^ ANION WITH AMINOPYRIDINES NC^sub 5^H^sub 4^NH^sub 2^ TO YIELD NEUTRAL arachno AND closo TEN-VERTEX MONOCARBABORANE DERIVATIVES
Collection of Czechoslovak Chemical Communications
; Reaction of NC^sub 5^H^sub 4^-2-NH^sub 2^ with the [6-Ph-nido-6-CB^sub 9^H^sub 11sup -^ anion (1) in the presence of hydrated FeCl^sub 3^ gives [6-Ph-9-(NC^sub 5^H^sub 4^-2-NH^sub 2arachno-6-CB^sub 9^H^sub 12^] (4) and thence [1-Ph-2-(NC^sub 5^H^sub 4^-2-NH^sub 2closo-1-CB^sub 9^H^sub 8^] (5), in
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Regulation of the High-Affinity NO^sub 3^^sup -^ Uptake System by NRT1.1-Mediated NO^sub 3^^sup -^ Demand Signaling in Arabidopsis[W]
Plant Physiology
; The NRT2.1 gene of Arabidopsis thaliana encodes a major component of the root high-affinity NO^sub 3^^sup -^ transport system (HATS) that plays a crucial role in NO^sub 3^^sup -^ uptake by the plant. Although NRT2.1 was known to be induced by NO^sub 3^^sup -^ and feedback repressed by reduced
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Determination of Stereochemistry of Bacteriochlorophyll g^sub F^ and 8^sup 1^-Hydroxy-chlorophyll a^sub F^ from Heliobacterium modesticaldum¶
Photochemistry and Photobiology
; ABSTRACT The reaction center complex of heliobacteria contains three kinds of chlorophyll pigments, bacteriochlorophyll g^sub F^ (BChl g^sub F its 13^sup 2^-epimer BChl g'^sub F^ and 8^sup 1^-hydroxy-chlorophyll a^sub F^ (8^sup 1^-OH-Chl a^sub F Because the full stereochemistry of these naturally
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Gene expression of the NO^sub 3^^sup -^ transporter NRT1.1 and the nitrate reductase NIA1 is repressed in Arabidopsis roots by NO^sub 2^^sup -^, the product of NO^sub 3^^sup -^ reduction
Plant Physiology
; NRT1.1 and NIA1 genes, which encode a nitrate (NO^sub 3^^sup transporter and the minor isoform of NO^sub 3^^sup -^ reductase (NR), respectively, are overexpressed in roots of NR-deficient mutants of Arabidopsis grown on nutrient solution containing NO^sub 3^^sup -^ and reduced N. The
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First Evaluation of a ^sup 99m^Tc-Tricarbonyl Complex, ^sup 99m^Tc(CO)^sub 3^(LAN), as a New Renal Radiopharmaceutical in Humans
The Journal of Nuclear Medicine
; ^sup 99m^Tc-Mercaptoacetyltriglycine (^sup 99m^Tc-MAG3), ^sup 99m^Tc-DD- and LL-ethylene-dicysteine (^sup 99m^Tc-EC), and ^sup 99m^Tc-mercaptoacetamide-ethylene-cysteine (^sup 99m^Tc-MAEC) contain N^sub 3^S or N^sub 2^S^sub 2^ ligands designed to accommodate the 4 ligating sites of the (^sup
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Synthesis and Evaluation of Nicotine [alpha]^sub 4^[beta]^sub 2^ Receptor Radioligand, 5-(3'-^sup 18^F-Fluoropropyl)-3-(2-(S)-Pyrrolidinylmethoxy)Pyridine, in Rodents and PET in Nonhuman Primate
The Journal of Nuclear Medicine
; Nicotine α^sub 4^4β^sub 2^ receptor subtypes are implicated in the study of Alzheimer's disease, schizophrenia, substance abuse, lung cancer, and other disorders. We report the development and evaluation of a putative antagonist, 5-(3'-fluoropropyl)-3-(2-(S)-pyrrolidinylmethoxy)pyridine
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Biodistribution and Pharmacokinetics of the [alpha]^sub v^[beta]^sub 3^-Selective Tracer ^sup 18^F-Galacto-RGD in Cancer Patients
The Journal of Nuclear Medicine
; ^sup 18^F-Galacto-RGD has been developed for PET of α^sub v946;^sub 3^ integrin expression, a receptor involved in, for example, angiogenesis and metastasis. Our aim was to study the kinetics and biodistribution of ^sup 18^F-Galacto-RGD in cancer patients. Methods: Nineteen patients with
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Protein-Cofactor Interactions in Bacterial Reaction Centers from Rhodobacter sphaeroides R-26: II. Geometry of the Hydrogen Bonds to the Primary Quinone Q^sup . -^^sub A^ by ^sup 1^H and ^sup 2^H ENDOR Spectroscopy
Biophysical Journal
; ABSTRACT The geometry of the hydrogen bonds to the two carbonyl oxygens of the semiquinone Q^sup sub A^ in the reaction center (RC) from the photosynthetic purple bacterium Rhodobacter sphaeroides R-26 were determined by fitting a spin Hamiltonian to the data derived from ^sup 1^H and ^sup 2^H
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Protein-Cofactor Interactions in Bacterial Reaction Centers from Rhodobacter sphaeroides R-26: I. Identification of the ENDOR Lines Associated with the Hydrogen Bonds to the Primary Quinone Q^sup .-^^sub A^
Biophysical Journal
; ABSTRACT Hydrogen bonds are important in determining the structure and function of biomolecules. Of particular interest are hydrogen bonds to quinones, which play an important role in the bioenergetics of respiration and photosynthesis. In this work we investigated the hydrogen bonds to the two
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Synthesis and Biologic Evaluation of a Novel Serotonin 5-HT^sub 1A^ Receptor Radioligand, ^sup 18^F-Labeled Mefway, in Rodents and Imaging by PET in a Nonhuman Primate
The Journal of Nuclear Medicine
; Serotonin 5-HT^sub 1A^ receptors have been implicated in disorders of the central nervous system and, therefore, are being studied by PET. Efforts are under way to improve in vivo stability of 5-HT^sub 1A^ agents currently in human use (^sup 11^C-labeled
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