The aim of this paper is to investigate tenant selection criteria adopted by the registered real estate firms and the relationship between the criteria and the firms’ years of experience in property management practice, core areas of professional practice and size of the firms with a view to determining the important criteria required of prospective tenant(s) to secure a rental apartment in the developing property market of Metropolitan Ibadan.The study adopts a questionnaire survey. The instruments (Tenant Assessment Checklists) were administered on a sample of estate surveying and valuation firms (registered real estate firms). Data collected were analysed using discriptive statistics, factor analysis, cluster analysis and chi-square.

Background: Allergi rhinitis(AR) is a significant cause of widespread morbidity, high medical treatment costs,reduced work productivity,lowquality of life and can be associated with conditions such as fatigue, headache, cognitive impairment, and sleep disturbance. Aim of the study: To find out the relation between tumour necrosis factor alpha (TNF-α) and Zn/Cu ratioin the patients with mild or moderate/severe cases. Patients and Methods: Ninety subject were enrolled in this study .Fifty patients with AR were subdivided into two groups i.e. mild (comprising 20 patients) with AR , moderate/ severe (comprising 30 patients) with AR . Forty subjects who are apparently healthy were taken as a control group. Serum TNF-α was determind by using enzyme- linked immunosorbent assay (ELISA). Zn and Cu were determined by using colorimetric method. Results: Serum levels of TNF-α was significantly higher in mild and moderate/severe groups compared with control group (p<0.01).A significant positive correlation between TNF-α and copper. A significant negative correlation between TNF-α and zinc in AR patients in mild and moderate/severe cases. Conclusion: Zn/Cu ratio affect TNF-α level in patients with AR.

Thermal barrier coating using many ceramic powders is being done in internal combustion engines for more than two decades now. Thermal spray techniques are extensively used for coating of these powders over piston top, cylinder walls and valves of the engine. These coatings have to bear thermal stresses during combustion in the engine thus wear and tear of ceramic coating occurs. The present paper is a review of the research work that has been done to study different ceramic coatings to understand stresses in coatings, porosity and crack penetration by applying thermal shock tests and thermal torch experiment. Also the best ceramic coating material has been suggested suitable as thermal barrier coating for application in internal combustion engines.

Markovian queueing model has so many application in real life situations. Places where Markovian queueing model can be applied include, Supermarket, Production system, Post office, data communication, parking place, assembly of printed circuit boards, call center of an insurance company, main frame computer, toll booths, traffic lights, e.t.c. Birth-death process has being markovian foundation on queueing models. This article is an eye opener to novice researchers, since it explore Markovian queueing model in real life situation. The fundamental of Markovian Queueing model as birth and death process is hereby reviewed in this article, with fundamental results applications in M / M / 1, M / M / S, M / M / 1/ K , and M / M / s / K. Here we reexamined; Average Number of Customers and average number of time in the system, waiting in the queue, in service respectfully. These summaries of these results are also tabulated.

Numerical analysis was performed to investigate the characteristics of the laminar fluid flow around an array of 3D protruding heaters mounted on the bottom substrate of a parallel plane channel using the ANSYS/Fluent® 14.0 commercial software. The fluid flow was considered to have constant properties under steady state conditions. In the channel inlet, the velocity profile was uniform. This problem is associated with forced flow over the electronic components mounted on printed circuit boards. The conservation equations and their boundary conditions were numerically solved in a single domain through a coupled procedure. The discretization of the equations was based on the Control Volumes Method. The algorithm SIMPLE was used to solve the pressure-velocity couple. Due to the non-linearity of the momentum equation, the correction of the velocity components and the pressure were under-relaxed to prevent instability and divergence. After a study of the computational mesh independence, the numerical results were obtained, displayed as a 3D non-uniform mesh with 212,670 control volumes. This computational mesh was more concentrated near the solid-fluid interface regions due to the larger primitive variable gradients in these regions. An investigation was done on the effects of the Reynolds numbers where the Reynolds numbers ranged from 100 to 300 and was dependent on the heights of the protruding heaters. The main characteristics of the fluid flow consisted of a small recirculation upstream of the heaters, the formation of horseshoe vortices around the protruding heaters’ side walls and a large recirculation region downstream of the heaters. The fluid dynamics parameters of interest, the velocity profiles, local and average skin friction coefficient, pressure distribution and the Darcy-Weisbach friction factor, were found and compared to the results available in the literature.

In this study, it was investigated the action of the Sel- Plex product that was included in the combined forage for milking swine and sucker piglets. There were investigated 10 parturient swine and 101 piglets of 1-42 days. It was concluded that the addition in basic ration of organic selenium has a benefic effect for swine growing and development that was expressed through: • Mortality and neonatal diarrhea reduction, weight increase with 2.5 kg for the swine treated with Sel-Plex (P<0,05); • Significant increase of the total number of T-lymphocytes (P<0,001), of the subpopulation of active Tlymphocytes (P<0,01) and of B-lymphocytes (P<0,01).

The kinetics of redox reduction of Toluidine blue (hereafter referred to as TB+) by dithionate ion have been studied in acidic medium under pseudo-first order condition of excess [S2O6 2-] at 31± 1oC, [H+] = 1 x 10-2 mol dm-3, ionic strength (I) = 0.5 mol dm-3 (NaCl) and λ max 600 nm. The redox reaction displays a 1:1 stoichiometry and the reaction was found to be first order and 3/2 order in the oxidant and the reductant respectively. The reaction is also catalyzed by hydrogen ion with the empirical rate law as.

In the present scenario, effective real time pollution monitoring equipments require large number of nodes (preferably >50) which are capable of interaction and hence provide reliable information. Increasing the number of sensors increases the possibility of determining the exact amount of gas levels in the surrounding environment. Hence the sensor nodes and the wireless network should together work cohesively to determine the correct levels of the gas desired to be monitored. Also it is important that the sensor node has low power consumption and is robust in extreme climatic conditions. Our main focusis todevelop many such sensor nodes and develop a simple protocol to effectively use them. In this paper we have only considered the design of one such node which can sense the levels of Carbon Monoxide, and hence a solid-state semiconductor Carbon Monoxide gas sensor is used. The paper describes the parameters likerobustness, low power requirements and a highly efficient mode of communication to design a sensor node.

This study aims to assess the impact of different sectors in the Jordanian economy by using Input-Output Multipliers Analysis and how they developed. The paper attempts to prove it by using Input- Output tables of Jordan economy to the years: 1987, 2000, and 2009. To facilitate the comparison process between activities the researcher assembled and aggregated them to 15 sectors. This study applied input-output technique to determine economic effects to gauge the significance of these industries in generating Output, Income, and Employment.

The purpose of this study was to identify the main uncertainties involved in the fuzzy front end phase of a new product development and to determine the weight of factors that define the time to market a product. The focus of this study has emerged from the need to explain the complexity of the fuzzy front end of a project and to understand and establish a treatment for the variables involved. Although literature covers the existence of difficulties in managing the fuzzy front end of projects, there is no reference to the identification of those variables and to the determination of their influence on the time to market. The interest in the fuzzy front end is justified due to the doubts that occur at that point of the development process of a new product. The fuzzy front end mentioned by some authors covers project management difficulties that occur at the very beginning of a project due to the lack of more precise data and to the possibility that the project team may face unknown situations and tasks. This paper proposes the use of systemic modeling tools in the fuzzy front end of a new product and the use of linear regression and variance analysis to determine the time to market. A study to be used as the database has been carried out with a home appliance company.