A New 3D Potential-Density Basis Set

A set of bi-orthogonal potential-density basis functions is introduced to model the density and its associated gravitational field of three dimensional stellar systems. Radial components of our basis functions are weighted integral forms of spherical Bessel functions. We discuss the properties of our basis functions and demonstrate their shapes for the latitudinal Fourier number $l=2$.Comment: 2 pages. To appear in the proceedings of IAU Symposium 245, "Formation and Evolution of Galaxy Bulges," M. Bureau, E. Athanassoula, and B. Barbuy, ed

Investigating the Emotional Theory of Mind in Iranian Married Women: A Descriptive Phenomenological Study

In marital relationships, the type of perception of the spouse’s behavior affects how the social information and behavior of the other couple is processed, leading to psychological consequences. Thus, a higher perception of each other’s mental state is followed by sincerity and more satisfaction with the relations. The present study was performed by using a descriptive phenomenological qualitative approach with the aim of investigating emotional theory of mind in 19 married Iranian women who were selected by purposive sampling in 2017. In order to coding data, MAXQDA 2018 software and the Colaizzi’s method were used for coding and analyzing the data, respectively. Finally, about three concepts including the emotion type, emotion expression and emotion regulation were extracted from the interviews. Results showed in emotion type, women remarked positive emotions of satisfaction and gratitude and negative emotions of sorrow and sadness only about themselves. Although emotion expression was possible through three ways but in women\u27s view point, men did not react to positive emotion non-verbally. In the third category, coping with negative emotions in the form of going into retreat was raised merely about men and emotion discharge and forgetfulness merely about women. The findings of the present study, a qualitative examination of emotions of the two genders from the viewpoint of women, is to a great extent in line with previous self-report and quantitative studies; they can be applied for Iran and other countries with similar culture and structure

Modeling and optimization of drying process of paddy in infrared and warm air fluidized bed dryer

This paper investigated the effect of the components of fluidized bed dryer with two thermal sources of heater and infrared such as air temperature at three levels (40, 50 and 60°C) equivalent to radiation intensity of 0.031, 0.042 and 0.053 W.cm-3 in infrared dryer, final moisture content of dried Tarom and Shirudi varieties at three levels (8-9%, 9-10% and 10-11% (d.b.)) and air velocity of 4.5 ms-1 on the milling characteristic and drying time. To this end, stepwise regression was used for selecting the best models for each dependent variable in terms of the independent variables and genetic algorithm was used for optimizing the parameters of dryer with simultaneous consideration of cracked and fractured grains, milling recovery, degree of milling and drying time. The results indicated that quadratic model was best fitted with the experimental data. The results of design of experiments exhibited the infrared fluidized bed dryer was the better option as compared to the warm air fluidized bed dryer. The optimized condition by genetic algorithm was included air temperature for Tarom and Shirudi varieties 55.25 and 58°C, respectively. Also, Tarom and Shirudi should be dried to moisture content of as low as 10.5 and 9.8%, respectively in order to have the optimized condition

The genoprotective effect of Naringin by mifepristone on human blood lymphocyte

Introduction: According to a study conducted by mifepristone, it is a potent anti-progesterone compound that can lead to abortion and abnormalities in the fetus. Therefore, due to the presence of high antioxidant flavonoids, such as Naringin, and the frequency of this compound in the country, we have determined the protective effect of Naringin against cytogenetic damage caused by mifepristone on blood lymphocytes with micronucleus method; a high dose causes abortion and genetic abnormalities. Methods and Results: With 5-cc heparin syringe, blood samples were collected from 5 healthy and non-smoker volunteers and blood samples were incubated for 1 hour after incubation with 100 μM of toxic dose of mifepristone and various concentrations of Naringin for 24 hours. Then to evaluate the production of micronucleus in binucleated lymphocytes, the slides were prepared and were evaluated by optical microscopy. The mean values were compared using the Spss software and the Anova test (posttest: Tukey). That p <0.05 has been made as meaningful. Incubation of blood samples with mifepristone induces genotoxicity in lymphocytes and the adjacency of cells with Naringin significantly reduces the number of micronucleus (p<0.05). The results of this study have shown a significant role of Naringin as the protective factor against the genotoxicity of mifepristone. Conclusion: In this study, Naringin was found to be a protective agent against the DNA damage caused by mifepristone, and since Naringin alone has no genetic disorder; it can be used as a protective agent against the toxic effects of mifepristone

Facility Location and Inventory Balancing in a Multi-period Multi-echelon Multi-objective Supply Chain: An MOEA Approach

A comprehensive and integrated study of any supply chain (SC) environment is a vital requirement that can create various advantages for the SC owners. This consideration causes productive managing of the SC through its whole wide components from upstream suppliers to downstream retailers and customers.  On this issue, despite many valuable studies reported in the current literature, considerable gaps still prevail. These gaps include integration and insertion of basic concepts, such as queuing theory, facility location, inventory management, or even fuzzy theory, as well as other new concepts such as strategic planning, data mining, business intelligence, and information technology. This study seeks to address some of these gaps. To do so, it proposes an integrated four-echelon multi-period multi-objective SC model. To make the model closer to the real world problems, it is also composed of inventory and facility location planning, simultaneously. The proposed model has a mixed integer linear programming (MILP) structure. The objectives of the model are reducing cost and minimizing the non-fill rate of customer zones demand. The cost reduction part includes cost values of raw material shipping from suppliers to plants, plant location, inventory holding costs in plants, distribution cost from plants to warehouses or distribution centers (DCs), and shipping costs from DCs to customer zones. Finally, since the literature of SC lacks efficient Pareto-based multi-objective evolutionary algorithms (MOEAs), a new multi-objective version of the biogeography-based optimization algorithm (MOBBO) is introduced to the literature of the SC. The efficiency of the algorithm is proved through its comparison with an existing algorithm called multi-objective harmony search (MOHS)

The effect of 12 weeks of aerobic exercise intervention on bone mineral density, expression of lymphocyte alkaline phosphatase gene and bone turnover markers in overweight postmenopausal women: a randomized controlled trial

The aim of our study was to examine the effect of 12 weeks of moderate-intensity aerobic exercise on bone mineral density (BMD), lymphocyte alkaline phosphatase (ALP) mRNA expression, and biochemical markers of bone turnover in postmenopausal women (PMWs). Twenty-four healthy sedentary PMWs aged 50-60 years were randomly assigned to exercise (EX, n=12) and control (C, n=12) groups. The EX group performed walking/jogging (50-60min/day, 3days/week at 65%-70% HRmax reserve) for 12-week while the C group participated in no intervention and continued their normal lifestyle. The BMD and lymphocyte ALP mRNA were determined by DXA and qRT-PCR, respectively. After 12 weeks, the increase in the lymphocyte ALP mRNA expression and its serum (P=0.008 and P=0.001), PTH (P=0.001), Vit-D (P=0.002), and VO2max (P=0.001) were significantly higher in the EX group compared to the C group, whereas body fat was significantly decreased (P=0.028). Our study indicates that 12 weeks of moderate-intensity aerobic exercise intervention improves bone turnover by increasing the ALP mRNA expression, serum levels of PTH, ALP, and Vit-D which can lead to the prevention of aging-induced osteopenia among PMWs

Finite element modelling of perturbed stellar systems

I formulate a general finite element method (FEM) for self-gravitating stellar systems. I split the configuration space to finite elements, and express the potential and density functions over each element in terms of their nodal values and suitable interpolating functions. General expressions are then introduced for the Hamiltonian and phase space distribution functions of the stars that visit a given element. Using the weighted residual form of Poisson's equation, I derive the Galerkin projection of the perturbed collisionless Boltzmann equation, and assemble the global evolutionary equations of nodal distribution functions. The FEM is highly adaptable to all kinds of potential and density profiles, and it can deal with density clumps and initially non-axisymmetric systems. I use ring elements of non-uniform widths, choose linear and quadratic interpolation functions in the radial direction, and apply the FEM to the stability analysis of the cutout Mestel disc. I also integrate the forced evolutionary equations and investigate the disturbances of a stable stellar disc due to the gravitational field of a distant satellite galaxy. The performance of the FEM and its prospects are discussed.Comment: 11 pages, three figures, accepted for publication by MNRA

New biorthogonal potential--density basis functions

We use the weighted integral form of spherical Bessel functions, and introduce a new analytical set of complete and biorthogonal potential--density basis functions. The potential and density functions of the new set have finite central values and they fall off, respectively, similar to $r^{-(1+l)}$ and $r^{-(4+l)}$ at large radii where $l$ is the latitudinal quantum number of spherical harmonics. The lowest order term associated with $l=0$ is the perfect sphere of de Zeeuw. Our basis functions are intrinsically suitable for the modeling of three dimensional, soft-centred stellar systems and they complement the basis sets of Clutton-Brock, Hernquist & Ostriker and Zhao. We test the performance of our functions by expanding the density and potential profiles of some spherical and oblate galaxy models.Comment: 8 pages, 6 figures, Accepted for publication in Monthly Notices of the Royal Astronomical Societ