Testosterone levels vary with environment during childhood

New research published inNature Ecology and Evolution suggests that healthy environments during childhood are linked to higher testosterone levels later in life.Science Daily
Source: Society for Endocrinology - Category: Endocrinology Source Type: news

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Publication date: September 2018Source: Results in Physics, Volume 10Author(s): G. Ravi Kumar, S. Uday Baskar, M.C. RaoAbstractMnO doped CaF2–Y2O3–ZnO–B2O3–SiO2 glasses were synthesized. Different physical parameters of these glass materials such as density, molar volume, electronegativity, optical basicity and refractive index were calculated. The glass transition and glass crystallization temperatures of these glasses were measured by DTA analysis. The mechanical properties such as Young’s modulus, Shear modulus, Bulk modulus, Poisson’s ratio and microhardness of these materials were a...
Source: Results in Physics - Category: Physics Source Type: research
Publication date: September 2018Source: Results in Physics, Volume 10Author(s): B.G. Agaie, I. Khan, Z. Yacoob, I. TliliAbstractIn this effort towards zero carbon emission of energy generation, Hydrogen Natural Gas Mixture (HCNG) is considered as energy source. This paper focuses on transient flow of HCNG in a pipelines under non-isothermal condition, using a modern technique of Reduced Order Modelling (ROM) technique. The effect of mass ration, body force and pipeline environmental temperature profile is investigated. The pipeline surrounding temperature effect HCNG flow parameters as shown in the results. The increase in...
Source: Results in Physics - Category: Physics Source Type: research
This article addresses magnetohydrodynamic (MHD) nonlinear convective stagnation point flow of Carreau nanofluid towards a stretching sheet with chemical reaction. Analysis is carried out in the presence of Newtonian conditions of heat and mass transfer. Brownian motion and thermophoresis phenomena have been utilized in energy and concentration expressions. Appropriate variables lead to development of nonlinear ordinary differential systems. Results for velocity, thermal field, nanoparticles concentration, skin friction and local Nusselt and Sherwood numbers are presented and investigated. Here higher values of material pa...
Source: Results in Physics - Category: Physics Source Type: research
Publication date: September 2018Source: Results in Physics, Volume 10Author(s): A.R. NaegerAbstractThe trans-Pacific transport of dust aerosols to the western United States coincided with the landfall of an atmospheric river (AR) from 17 to 18 February 2011 during the California Water Service (CalWater) field campaign in northern California. Weather Research and Forecasting model with Chemistry (WRF-Chem) simulations are conducted to quantitatively understand the impact of long-range transported (LRT) dust aerosols on precipitation processes associated with AR events impacting the western United States. The simulations sho...
Source: Results in Physics - Category: Physics Source Type: research
In this study, we simulated this kind of CIGS thin-film solar cell with the variation of Zn(O, S) affinity until an optimal interval which corresponds to the best efficiency of 20.63 % where the affinity of CIGS remains constant. Its optimal value is around 4.58 eV for a (gallium / indium) ratio of 0.3 eV corresponds to a band gap energy of 1.17 eV as it is already demonstrated by several groups [3], [4] and the resulting Conduction Band Offsets (CBO) between CIGS and Zn(O, S) can range from −0.2 to +1.2 eV if the full range of the (oxygen/sulfur) ratio is considered from the pure ZnO to the pure ZnS.The simulation t...
Source: Results in Physics - Category: Physics Source Type: research
Publication date: Available online 17 July 2018Source: Results in PhysicsAuthor(s): Fan Zhechao, Feng HongweiAbstractThe effects of process parameters of laser additive manufacturing (laser power, scanning speed, scanning direction) and heat treatment on the microstructure and properties of Ti-6Al-4V titanium alloy forming parts were studied under coaxial powder feeding. The results show that the columnar crystals of the Ti-6Al-4V forming parts made by laser material are all wechsler structure, and there are obvious layers in the layer; The strength of laser reinforced Ti-6Al-4V titanium alloy parts exceeds the requirement...
Source: Results in Physics - Category: Physics Source Type: research
Publication date: Available online 17 July 2018Source: Results in PhysicsAuthor(s): Farhad Fouladi Targhi, Yousef Seyed Jalili, Faramarz KanjouriAbstractRecently, hybrid organic-inorganic perovskite (HOIP) solar cells with AMX3-perovskite-based photovoltaics have opened up a new paradigm in solar cell fabrication. Among numerous studies on these novel materials, there are limited researches that compare theoretical and experimental results simultaneously. Here, we have investigated the most feasible structures -MAPbI3 and FAPbI3- utilized as efficient active layers in HOIP solar cells. To this end, the proposed structures ...
Source: Results in Physics - Category: Physics Source Type: research
Publication date: Available online 17 July 2018Source: Results in PhysicsAuthor(s): Qiang ZengAbstractMaterials with fractal structures may show distinct features of wetting. Here we report the characteristics of wetting of liquid caps on fractal surfaces in the Wenzel wetting regime. It shows that the relationship between the apparent and Young’s contact angles is associated with the size-matching degree or discrepancy between the liquid caps and substrate. An explicitly fractal-dimension-and size-related equation is developed to bridges over the apparent contact angle and the Young’s contact angle, and valida...
Source: Results in Physics - Category: Physics Source Type: research
Publication date: Available online 17 July 2018Source: Results in PhysicsAuthor(s): Asif Mahmood, Wasim Jamshed, Asim AzizAbstractA numerical investigation of Casson nanofluid flow, heat transfer and entropy generation over a horizontal porous stretching surface is carried out in the present research. The simplified flow model includes the effect of Lorentz forces, Cattaneo-Christov heat flux, thermal radiation and non-uniform stretching of porous surface. Similarity technique is employed to reduce the governing nonlinear partial differential equations to a set of nonlinear ordinary differential equations. The resulting se...
Source: Results in Physics - Category: Physics Source Type: research
This study opens a way to apply optical sensors by using broadband SC as a source for manufacturing temperature environments sensors within the MRR waveguide structures. This will enhance the ability of the current temperature sensors to function at different and long wavelength band.
Source: Results in Physics - Category: Physics Source Type: research
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