229 research outputs found

    The Impact of the Cagayan de Oro Port Development Project on Skilled and Unskilled Port Labor Employment

    Get PDF
    This article is a product of a nine-month training and application program implemented by the micro component of the Economic and Social Impact Analysis/Women in Development (ESIA/WID) and the Food Systems Program of the East-West Center Resource Systems Institute (RSI). It focuses on the employment impacts of the development project for one of the Philippines’ most important ports, Cagayan de Oro.infrastructure, employment opportunities, infrastructural development, impact analysis

    Germanium Detector with Internal Amplification for Investigation of Rare Processes

    Get PDF
    Device of new type is suggested - germanium detector with internal amplification. Such detector having effective threshold about 10 eV opens up fresh opportunity for investigation of dark matter, measurement of neutrino magnetic moment, of neutrino coherent scattering at nuclei and for study of solar neutrino problem. Construction of germanium detector with internal amplification and perspectives of its use are described.Comment: 13 pages, latex, 3 figures, report at NANP-99, International Conference on Non-Accelerator Physics, Dubna, Russia, June 29- July 3, 1999. To be published in the Proceeding

    GEMMA experiment: three years of the search for the neutrino magnetic moment

    Full text link
    The result of the 3-year neutrino magnetic moment measurement at the Kalinin Nuclear Power Plant with the GEMMA spectrometer is presented. Antineutrino-electron scattering is investigated. A high-purity germanium detector of 1.5 kg placed at a distance of 13.9 m from the 3 GW(th) reactor core is used in the spectrometer. The antineutrino flux is 2.7E13 1/scm/s. The differential method is used to extract (nu-e) electromagnetic scattering events. The scattered electron spectra taken in 5184+6798 and 1853+1021 hours for the reactor ON and OFF periods are compared. The upper limit for the neutrino magnetic moment < 3.2E-11 Bohr magneton at 90% CL is derived from the data processing.Comment: 4 pages, 4 figure

    Elastic Fibre System in the Shaft of Adult Human Penis

    Get PDF
    Elastic fibres play a central role in functioning of the penis. Detailed animal studies have quantified elastic and collagen fibre content in rat and rabbit penis. Though rabbit model is similar to human penis, it is important to determine whether findings in rabbits are reproducible in humans. To determine the distribution and volumetric density of elastic fibres in the corpus cavernosum (CC), corpus spongiosum (CS) and tunica albuginea (TA) of the shaft of adult human penis. Male cadaveric specimens from penile mid-shaft were obtained and processed routinely for histological studies using Weigert’s resorsin fuchsin stain. CC TA has an external longitudinal and inner circular layer. Buck’s fascia has principally  longitudinal elastic fibres. There are multiple blood vessels in CC, CS and TA. Elastic fibres are abundant in the mid-shaft of human penis. The highest volumetric density of elastic fibres is found in the CS (40%). The elastic fibres in the CS are mainly longitudinal in orientation. There is an elaborate elastic fibre meshwork in the sub-mucosal layer of urethral epithelium, surrounding para-urethral glands and blood vessels found in the midshaft of human penis. Elastic fibre content in the human CS of the urethra is higher than in CC and TA. Their concentrations around the sub-mucosal zone of the urethra epithelium suggest these fibres may have an important role in the function of urethra both for ejaculation and  passage of urine.Key words: Elastic fibres, Penis, Corpus Cavernosum, Corpus spongiosum

    Contribution à l’étude de l’influence des paramètres d’élaboration et optimisation du procédé de mise en oeuvre de bio-composites en coques de cotonnier et polystyrène recyclé

    Get PDF
    L’élaboration d’un éco-matériau requière outre la caractérisation physico-chimique des matières premières utilisées, la maîtrise des paramètres du procédé de mise en oeuvre utilisés. Le présent travail est consacré à l’étude de l’influence des paramètres d’élaboration d’un biocompositeinjecté en coques de cotonnier et polystyrène recyclé, en vue d’optimiser le procédé de mise en œuvre et les propriétés du produit fini.Dans la démarche d’élaboration adoptée, deux procédés sont retenus:il s’agit del’extrusion,qui estutilisée pour l’élaboration ducompoundetde l’injection-moulage (des granulats issus de l’extrusion), utilisée pour fabriquerles éprouvettes et les produits finis. L’objectif visé est d’identifier les valeurs optimales des paramètres de mise en œuvredeces deux procédés en vue de l’élaboration des produits de qualité ayant notamment les propriétés mécaniques requisespour des applications diverses.Ainsi,après identification des paramètres optimisés de mise en œuvre, des éprouvettes ont été produites avec ces paramètres optimisés d’élaboration et leurs propriétés mécaniques tellesque:le module d’élasticité (E) ou module de Young, la contrainteà la rupture (σr),Le module d’élasticité en torsion ou module de cisaillement (G), les contraintes de traction,La résistance à l’impact du matériau appelée encore résilience (R),déterminéspar les essais de caractérisation et le meilleur matériau élaboré,identifié.Les résultats obtenus sont consignés dans le présent document à travers les courbes, tableaux et figuresqui suivent.Mots-clés: extrusion, injection, polystyrène recyclé/coques de cotonnier, paramètres d’élaboration. Contribution to the study of the influence of parameters to formulation and optimization of process implementation of bio-composite at cottonhulls and recycled polystyreneThe development of an eco-material requires further physico-chemical characterization of raw materials, control parameters of processof implementation used. This work is devoted to the study of the influence of processing parameters of a biocomposite injected cottonhullsand recycled polystyrene, in order to optimize the process of implementation and the properties of the finalproduct.In the development process adopted, two methods are used: this is extrusion, which is used for the preparation of the compound and injection molding (aggregates from extrusion),which isused for fabricate specimens and finalproducts.The objective is to identify the optimal parameter values for the implementation of these two methods for the development of quality products including having the required mechanical properties for various applications.Thus, after identification of optimized parameters forimplementation, test pieces were produced with the optimized parametersand mechanical properties as: the modulus of elasticity (E) or Young's modulus, the breaking stress (σr) the torsional spring or shear modulus (G),tensile stresses, the impact resistance of the material, also called resilience (R), determined by testing and characterization of the material produced better identified. The results obtained are reported in this paper through the curves, tables and figures that follow.Keywords: extrusion, injection, recycled polystyrene / cotton hulls, seed processing parameters

    Weak and Magnetic Inelastic Scattering of Antineutrinos on Atomic Electrons

    Get PDF
    Neutrino scattering on electrons is considered as a tool for laboratory searches of the neutrino magnetic moment. We study inelastic νˉee\bar\nu_ee^--scattering on electrons bound in the germanium (Z=32) and iodine (Z=53) atoms for antineutrinos generated in a nuclear reactor core and also in the 90^{90}Sr-90^{90}Y and 147^{147}Pm artificial sources. Using the relativistic Hartree-Fock-Dirac model, we calculate both the magnetic and weak scattering cross sections for the recoil electron energy range of 1 to 100 keV where a higher sensitivity to the neutrino magnetic moment could be achieved. Particular attention is paid to the approximate procedure which allows us to take into account the effects of atomic binding on the inelastic scattering spectra in a simple way.Comment: 7 pages in LaTeX, 10 figures in P

    Involvement of multiple cell lineages in atherogenesis

    Get PDF
    Atherogenesis is a multicellular event. Early reports concentrated on the role of endotheliocytes, monocyte - macrophages and smooth muscle cells. Recognition of the immuno-inflammatory nature of the process, however, expanded the scope of cellular involvement and more recent reviews emphasize the role of immune and inflammatory cells. In addition, recent studies reveal that other cells are also involved. Elucidation of all the types of cells involved is valuable to inform therapeutic interventions for this disease, but most accounts concentrate on cells which are the target of the study and may fail to include other cells. This review therefore aimed at consolidating information on the various cells involved in atherogenesis. Review of contemporary literature was done for cells in the vessel wall and in blood to check for their potential role in atherogenesis. It has been shown that atherogenesis involves all the cells present in the various coats of the vessel wall – endotheliocytes, smooth muscle cells, fibroblasts, stem cells, pericytes, mast cells, dendritic cells, macrophages and immigrant cells usually found in blood, namely monocytes, neutrophils, lymphocytes, platelets and red blood cells. These cells promote atherogenesis by secreting several products which influence inflammation, migration, proliferation and secretory activity of each other in a manner that synergises their activities. Therapeutic interventions should target the various cell types.Key Words: Cells, arterial wall, blood, atherogenesis
    corecore