An interview with Dr. Suresh Canagarajah on academic mobility, language and literacy

L’autora va entrevistar al professor Suresh Canagarajah de la Pennsylvania State University al juny del 2017, sobre la mobilitat acadèmica, llengua y literacitats.The author interviewed Dr. Suresh Canagarajah of Pennsylvania State University on academic mobility, language and literacy, in June 2017.La autora entrevistó al profesor Suresh Canagarajah de la Pennsylvania State University en junio 2017, sobre la movilidad académica, lengua y literacidades.L'auteur a interviewé le Dr. Suresh Canagarajah de la Pennsylvania State University sur la mobilité académique, la langue et l'alphabétisation, en juin 2017

Evaluating the impact of microenterprise credit programs on women in Bangladesh

Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1996.Includes bibliographical references (leaves 58-60).by Rumana Huque.M.C.P

Thermoelectric Properties of Zr0.5Hf0.5Ni1-xPdxSn0.99Sb0.01 and Effect of Nanoinclusions on Transport Properties of Half Heuslers

Thermoelectric materials convert temperature gradients into electricity and vice-versa. These materials utilize the Seebeck effect for power generation and function without moving parts and are highly reliable. The efficiency of thermoelectric devices is related to the dimensionless figure of merit for the constituent materials, defined as where S is the Seebeck coefficient, is the electrical conductivity, is the thermal conductivity and T is the temperature. Maximizing ZT is very challenging because of interdependence of parameters, for example, increasing the electrical conductivity by increasing the carrier concentration invariably lowers S and vice versa. Presently numerous thermoelectric materials are being investigated by different research groups. Despite having high thermal conductivity, half-Heusler materials are promising candidates for thermoelectric applications due to their relatively high power factor () and the ability to tune the thermal and electrical properties through substitutional doping. 2S In this research work, I have investigated the synthesis and transport properties of half Heusler series Zr 0.5Hf0.5Ni1-xPdxSn0.99Sb0.01 (0≤x≤1). Also the role of NiO and HfO2 nanoinclusions in half –Heusler matrix were studied. The half Heusler samples were prepared by solid state reaction. Resistivity, Seebeck coefficient and thermal conductivity were measured for all samples over a temperature range from room temperature to 750K. Hall effect measurements at room temperature were also performed. Addition of NiO inclusions did result in an improvement in ZT whereas addition of 3% vol HfO2 in Zr0.5Hf0.5Ni0.8Pd0.2Sn0.99Sb0.01 showed 19% improvement in ZT

Thermoelectric Properties of Zr0.5Hf0.5Ni1-xPdxSn0.99Sb0.01 and Effect of Nanoinclusions on Transport Properties of Half Heuslers

Thermoelectric materials convert temperature gradients into electricity and vice-versa. These materials utilize the Seebeck effect for power generation and function without moving parts and are highly reliable. The efficiency of thermoelectric devices is related to the dimensionless figure of merit for the constituent materials, defined as where S is the Seebeck coefficient, is the electrical conductivity, is the thermal conductivity and T is the temperature. Maximizing ZT is very challenging because of interdependence of parameters, for example, increasing the electrical conductivity by increasing the carrier concentration invariably lowers S and vice versa. Presently numerous thermoelectric materials are being investigated by different research groups. Despite having high thermal conductivity, half-Heusler materials are promising candidates for thermoelectric applications due to their relatively high power factor () and the ability to tune the thermal and electrical properties through substitutional doping. 2S In this research work, I have investigated the synthesis and transport properties of half Heusler series Zr 0.5Hf0.5Ni1-xPdxSn0.99Sb0.01 (0≤x≤1). Also the role of NiO and HfO2 nanoinclusions in half –Heusler matrix were studied. The half Heusler samples were prepared by solid state reaction. Resistivity, Seebeck coefficient and thermal conductivity were measured for all samples over a temperature range from room temperature to 750K. Hall effect measurements at room temperature were also performed. Addition of NiO inclusions did result in an improvement in ZT whereas addition of 3% vol HfO2 in Zr0.5Hf0.5Ni0.8Pd0.2Sn0.99Sb0.01 showed 19% improvement in ZT

Fundamental studies of anaerobic biosorption in wastewater treatment

The potential for sorption of soluble organic matter on anaerobic biomass is currently under investigation by the author and coworkers at Iowa State University. Biosorption is defined as the uptake or accumulation of particulates and chemicals by microbial biomass. The anaerobic biosorption process utilizes the sorption capabilities of active biomass for the treatment of wastewater. Biosorption is a rapid process. About 40% removal of organic matter was obtained in only 15 minutes after the substrate was brought in contact with the biomass;This dissertation presents the results of preliminary investigations on the effects of various factors on the biosorption process. The primary objective of this research was to determine the applicability of anaerobic biomass as a potential sorbent for organic matter and to quantify the results in terms of isotherms. The effects of mixing times, temperature, substrate concentration, biomass concentration, and granular biomass particle size were also studied;Anaerobic biomass was grown at 35°C in 10-liter source reactors, operated as anaerobic sequencing batch reactors (ASBR). Biosorption experiments were performed with active biomass in two liter batch reactors on a synthetic milk waste. The particle size distributions of the granular biomass were determined using an Automatic Image Analysis system. Temperature studies were significant. Better removals were obtained at higher temperature than at lower temperature. It was observed that wastes at temperatures as low as 7°C could be treated without the application of external heat;Higher removals were obtained with the small granular biomass than with the large granules. Increasing the biomass concentration resulted in a significant increase in the percentage removal of organic matter. Another method of improving biosorption was to operate a number of sorption reactors in series. High overall COD removals were obtained in a series of three reactors. The results were expressed in terms of adsorption isotherms. The data conformed well to both the Freundlich and the Langmuir adsorption models

Analysis of Mediating Factors' Impact on Employee Job Satisfaction in a Superstore Retail Organization

Employee job satisfaction is the vital issue for an organization to catch its successful position in the competitive market saliently depends on employee devoutness to the organization. Satisfied employees are fully committed and stimulated to show their best performance which helps to create value for customers and achieve company’s objectives. Employees are satisfied in their job when they are adequately receiving different benefits like financial benefits (salary, bonus, and provident fund), allowances and insurance; better working conditions, various achievements in a company by their work performance, training and development facilities, and vacation facilities from an organization. The study is devoted to recognize the variables that affect the employee job satisfaction of an organization. The goal of the article is to measure the extent to influence the mediating factors to the employee job satisfaction. Keywords: Job Satisfaction; Mediating Factors; Superstore Retail Organization. DOI: 10.7176/RHSS/13-1-01 Publication date: January 31st 202

Structuring Urban Sustainability with Water: A Case of Kamrangir Chor, Dhaka, Bangladesh

Too much or too little water is always a challenge for any water related issue, especially for developing countries where water is abundant or crisis like Bangladesh with the change of circumstances. Dhaka the capital of Bangladesh is facing a serious water scarcity problem due to the big gap between demand and supply of water system. On the other hand it can be say that this water crisis originated due to too much water like floods, rainfall, drought etc. that force rural people from other part of country towards city and city is losing its hydrological balance to accommodate these unwanted migrated people. Dhaka has experiencing a tremendous pressure and transformation in terms of its water system due to such unmanageable urban growth and uncontrolled urbanization. Design strategies and solution are needed to respond for pressing climate and environmental changes and necessary to take action against the ubiquitous human mismanagement of the essential resource of water. To overcome these water related problem water can be a designing element for structuring future development with the combination of sustainable approaches for social and physical transformation, open up opportunities for land water management system. This paper will try to find the changing relation between the city and its water system. Using Kamrangir chor a water linked suburb in Dhaka as an experimental site this paper will also frame some urban design strategies for reducing water damages, revitalize water sources, productive water parks, which will structure new water based urban development

GAMBARAN HISTOPATOLOGIS PARU-PARU MENCIT (MUS MUSCULUS) YANG TERPAPAR ASAP ROKOK DAN DIBERI EKSTRAK SEMANGKA MERAH (CITRULLUS VULGARIS)

Penelitian ini bertujuan mengetahui gambaran histopatologis paru-paru mencit yang terpapar asap rokok dan diberi ekstrak semangka merah dosis 22 mg dan 44 mg. Desain penelitian menggunakan metode eksperimental rancangan acak lengkap (RAL) dengan 4 kelompok perlakuan dan 3 ulangan. Kelompok kontrol negatif (KN). Kelompok kontrol positif (KP) terpapar asap rokok. Kelompok perlakuan 1 (K1) terpapar asap rokok dan diberi ekstrak semangka merah 22 mg. Kelompok perlakuan 2 (K2) terpapar asap rokok dan diberi ekstrak semangka merah 44 mg. Pemaparan asap rokok dilakukan pada pagi hari dengan membakar satu batang rokok selama satu jam dan pemberian ekstrak semangka dilakuan pada sore hari selama 30 hari. Pada hari 31 mencit di nekropsi dan diambil paru-paru bagian kanan, ditimbang berat dan dibuat preparat histologi dengan pewarnaan HE. Data dianalisis dengan menggunakan uji ANOVA satu arah dan dilanjutkan dengan uji Duncan. Hasil penelitian menunjukkan bahwa pemaparan asap rokok dan pemberian ekstrak semangka merah selama 30 hari terlihat adanya pengaruh nyata (P0,05). Dapat disimpulkan bahwa pemberian ekstrak semangka merah dosis 22 mg dan 44 mg dapat mencegah kerusakan sel paru-paru mencit yang terpapar asap rokok