BACKGROUND Social support has been widely known as a protective factor for the emotional well-being (EWB) of older adults, but less studies have investigated the roles of different sources of social support (i.e., family and friend support) on different facets of EWB (i.e., positive affect and negative affect) simultaneously. METHODOLOGY AND FINDINGS In this study, the associations between fa...

Let G be a bounded simply-connected domain in the complex plane C, whose boundary Γ := ∂G is a Jordan curve, and let {pn}n=0 denote the sequence of Bergman polynomials of G. This is defined as the unique sequence of polynomials {pn(z)}n=0, with positive leading coefficient, that are orthonormal with respect to the area measure on G. The asymptotic behaviour of pn(z) in the exterior of Γ, in cas...

We have used integral two-point spatial correlation function and its second derivative to analyze the distribution of quasars in three very deep surveys published in the literature. Statistically significant (∼ 2 − 3σ) correlations were found at scales of ∼ 50 − 100h Mpc in all of the analyzed surveys. We have used the friend-of-friend cluster analysis to show that these correlations can be exp...

With the increasing popularity of social network systems, it’s valuable and important to provide well-designed and effective friend recommendation for users to achieve high loyalty of them. Although FOF is an effective and widely used friend recommendation algorithm, the straight-forward implementation of it needs increasingly large amount of computation power with the growth of the number of u...

abstract background and purpose: according to the reported problems in area of the inappropriateness of water quality which used for washing and staining of car apparatuses in a car factory, this research was carried out for identification of physical, chemical, and microbiological characteristics of the consumed water in babol car factory, iran. materials and methods: physical and chemical par...

The penetration of rainwater through walls depends on the following combination of conditions: • the presence of water • openings in the assembly that permit water to enter • forces that can move water through the assembly. The control of rainwater penetration depends on being able to control any one or all of these conditions. Rain penetration creates problems ranging from damage to interior f...

Rainwater harvesting (RWH) is a method of inducing, collecting, storing and conserving local surface runoff for agricultural production. This paper presents a brief treatise, of rainwater harvesting, and its historical perspectives. The paper reviews major techniques of RWH for crop production being practised. These fall into three broad categories namely: In-situ, Internal (Micro) and External...

Over the past three years a UK EPSRC research programme has been underway at Heriot-Watt University investigating siphonic roof rainwater systems. This text aims to report the principle 8ndings of the project to date. A brief description of experimental and numerical aims is given. The priming procedure which occurs in an idealised system is documented. The test procedures employed are describe...

Concentrations of 14 rare earth elements (REEs) in six size classes of airborne particulate matter (APM) (<0.43, 0.43–0.65, 0.65–1.1, 1.1–2.1, 2.1–11, and >11 mm) and in two different phases (suspended particulate and dissolved) in rainwater were determined by inductively coupled plasma mass spectrometry (ICP-MS). Positive Eu and Tb anomalies were observed in size-classified APM. These anomalie...