Semiconductor Detectors. G. Bertolini and A. Coche, Eds. Interscience (Wiley), New York; North-Holland, Amsterdam, 1968. x + 518 pp., illus. $22.50

Wagner, S.

doi:10.1126/science.168.3930.462

Cited by 3 publications

(3 citation statements)

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“…The increase in blood ow is re¯ex-mediated and results in vasocongestion followed by transudation of¯uid into the vaginal lumen. 2 Several studies have been performed to identify the neurotransmitters involved in the regulation of the smooth muscle of the vaginal wall and vascular bed. In the human and animal vagina, adrenergic-, cholinergic-as well as non-adrenergic, non-cholinergic (NANC)-neurotransmittersatransmitter generating enzymes have been identi®ed as described previously.…”

Section: Introductionmentioning

confidence: 99%

Effects of diabetes on neurotransmission in rat vaginal smooth muscle

et al. 2001

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The aim of this work was to characterize the effect of experimental diabetes on neurotransmission in rat vagina. Female Sprague ± Dawley rats were divided into two groups: non-diabetic controls (NDM, n 38) and diabetics (DM, n 38). DM was produced by intraperitoneal injection of streptozotocin. Eight weeks later the animals were killed, the distal part of the vagina was removed, and smooth muscle strips were prepared for functional organ bath experiments and for measurement of nitric oxide synthase (NOS) activity. In DM preparations, the EC 50 value for noradrenaline (NA) was signi®cantly increased (P`0.05) and the maximal contractile response decreased (P 5 0.001). In preparations precontracted with NA, the NO donor SNAP and calcitonin gene-related peptide (CGRP) caused concentration-dependent relaxations, which were signi®cantly decreased (P`0.001) in the DM group. Electrical stimulation of nerves (EFS) caused frequency-dependent contractions, which were signi®cantly lower in DM than in NDM strips (P`0.001). SNAP and CGRP concentration-dependently inhibited EFS evoked contractions in both NDM and DM preparations. The inhibition was signi®cantly lower (P`0.05) in the DM group. In NDM preparations precontracted with NA, EFS evoked frequency-dependent relaxations; such relaxations were inhibited or reduced in DM. Treatment with the NOS inhibitor, L-NOARG 0.1 mM, abolished relaxations in all preparations or produced contraction in DM preparations. Calcium-dependent NOS activity was not signi®cantly different in the DM and NDM groups. However, the DM animals showed a small but signi®cant increase in calcium-independent NOS-activity (P`0.05). Diabetes interferes with adrenergic-, cholinergic-and NANC-neurotransmitter mechanisms in the smooth muscle of the rat vagina. The changes in the nitrergic neurotransmission are not due to reduction in NOS-activity, but seem to be due to interference with later steps in the L-arginineaNOaguanylate cyclaseacGMP system.

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Section: Introductionmentioning

confidence: 99%

Effects of diabetes on neurotransmission in rat vaginal smooth muscle

et al. 2001

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“…According to the binary phase diagram of Si and Au, as shown in Figure 4, the lowest melting temperature for the Au-Si eutectic is approximately 363°C obtained for a composition of Si and Au. The eutectic is lower than the melting point of Au (1064°C) and Si (1414°C) [21]. Considering that the liquid phase is thermodynamically equilibrated with the solid one, the lowering of the melting point, with the size of the droplet, is given by Eq.…”

Section: Epitaxial Growth: Silicon Nanowiresmentioning

confidence: 99%

Semiconductor Epitaxial Crystal Growth: Silicon Nanowires

Khayyat¹

2022

21st Century Nanostructured Materials - Physics, Chemistry, Classification, and Emerging Applications in Industry, Biomedicine,

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The topic of nanowires is one of the subjects of technological rapid-progress research. This chapter reviews the experimental work and the advancement of nanowires technology since the past decade, with more focus on the recent work. Nanowires can be grown from several materials including semiconductors, such as silicon. Silicon is a semiconductor material with a very technological importance, reflected by the huge number of publications. Nanowires made of silicon are of particular technological importance, in addition to their nanomorphology-related applications. A detailed description of the first successfully reported Vapor–Liquid–Solid (VLS) 1-D growth of silicon crystals is presented. The bottom-up approach, the supersaturation in a three-phase system, and the nucleation at the Chemical Vapor Deposition (CVD) processes are discussed with more focus on silicon. Positional assembly of nanowires using the current available techniques, including Nanoscale Chemical Templating (NCT), can be considered as the key part of this chapter for advanced applications. Several applied and conceptional methods of developing the available technologies using nanowires are included, such as Atomic Force Microscopy (AFM) and photovoltaic (PV) cells, and more are explained. The final section of this chapter is devoted to the future trend in nanowires research, where it is anticipated that the effort behind nanowires research will proceed further to be implemented in daily electronic tools satisfying the demand of low-weight and small-size electronic devices.

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“…Because of its high melting point, low atomic diffusion rate and other special properties, there are both similarities and differences between the growth mechanism of tungsten nanomaterials and general inorganic nanomaterials. For this reason, the researchers had proposed a number of growth models which could be used for reference, for example, VS model [ 17 , 18 ], vapor–liquid–solid (VLS) model [ 19 - 22 ], VSS model [ 8 , 23 ], etc. The growth mechanism is different with distinct preparation conditions.…”

Section: Introductionmentioning

confidence: 99%

A large-scale fabrication of flower-like submicrometer-sized tungsten whiskers via metal catalysis

Liu

et al. 2012

Nanoscale Res Lett

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Tungsten powder mixed with an appropriate amount of nickel and iron powders is used as raw material to fabricate large-scale tungsten whisker-like structure. The morphology, microstructure and composition of the whisker-like tungsten are observed and tested by scanning electron microscope and FESEM, transmission electron microscopy, X-ray spectroscopy, and X-ray diffraction, respectively. The main component of the tungsten whisker-like structure is tungsten, which has the axial growth along the <100 > direction with large aspect ratio and possesses flower-like structure. Large-scale submicrometer-sized whisker-like tungsten was fabricated via vapor phase deposition approach with the aid of metal catalysts at 800°C by holding for 6 h in the appropriate atmosphere. The growth procedure of flower-like tungsten whisker is probably based on the vapor–liquid–solid mechanism at beginning of the formation of tungsten nuclei, then vapor-solid mechanism is dominant.

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Semiconductor Detectors. G. Bertolini and A. Coche, Eds. Interscience (Wiley), New York; North-Holland, Amsterdam, 1968. x + 518 pp., illus. $22.50

Cited by 3 publications

References 0 publications

Effects of diabetes on neurotransmission in rat vaginal smooth muscle

Effects of diabetes on neurotransmission in rat vaginal smooth muscle

Semiconductor Epitaxial Crystal Growth: Silicon Nanowires

A large-scale fabrication of flower-like submicrometer-sized tungsten whiskers via metal catalysis

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