Application of Biosorption technology for remove heavy metal (Cadmium) in wastewater
This study was performed to evaluation of biosorption technology application for remove heavy metal (Cadmium) in wastewater. At this study, Saccharomyces cerevisiae was applied for biosorption of Cadmium element from industrial wastewater. Effect of Two factors were studied on value of absorption included biomass concentration (2, 3, 4, 5 and 6 g/l) and contact time (15, 30, 60 and 120 min). pH value and temperature were fixed at 6 and 25?C in experiment period, respectively. it was determined that Cadmium absorption rate decreased with increasing concentration of biomass adsorbent. Also, Absorption was increased with increasing of time and using of 30, 60 and 120 minutes increased absorption 1.28, 1.85 and 2.61 fold in compare to 15 minute.
Please Login using your Registered Email ID and Password to download this PDF.
This article is not included in your organization's subscription.The requested content cannot be downloaded.Please contact Journal office.Click the Close button to further process.
[PDF]
Approaching Lean Healthcare towards Sustainability in the Healthcare Sector
Healthcare sector in Malaysia has developed progressively since the early 1990s and was recognized under the Tenth Malaysia Plan (2011-2015) as one of the National Key Economic Areas, or NKEA The introduction of the Eleventh Malaysia Plan has supported this; it places focus on transforming the service sector, giving attention to private healthcare by improving the quality of service and increasing its global competitiveness. However, private healthcare poses a variety of challenges due increasing private healthcare spending, and thus affected the sustainability in the healthcare system. Moreover, sustainability issues are related to increasing costs that lead to waste. In this regard, it was suggested that lean healthcare should be applied in private hospitals and incorporated with sustainability, and needs to be carefully planned to ensure that it is feasible and sustainable in the long run. From previous studies, it is apparent that not many empirical researches have been conducted that pertain to the relationship lean healthcare practices (operational aspects and sociotechnical aspects) and sustainability. Therefore, the main objective of this research is to evaluate does the lean healthcare practices will lead to sustainability based on the triple bottom line; financial, social and environment. Besides, the article will embrace introduction, problem statement, literature review, methodology and conclusion. Finally, it is hoped this research will be extremely insightful for the service sector, specifically from healthcare organizations that are looking into improving their organizational performance and be much more sustainable.
Please Login using your Registered Email ID and Password to download this PDF.
This article is not included in your organization's subscription.The requested content cannot be downloaded.Please contact Journal office.Click the Close button to further process.
[PDF]
Aptitude and Intelligence are not Fixed, So, Why Aptitude and IQ Tests? A Challenge from Multiple-Intelligences and Dynamic Assessment Perspectives
That intelligence is not static rather dynamic and changeable, so that human being has a wide range of- rather than a restricted set of- capabilities all potentially developable (Gardner, 1983) and that socio-cultural agencies and mediating tools (Derry, 2013) shape and extend the expanse of existing capability to an actualized status were the main impetus to claim that aptitude is not likewise stable. Hence, the psychometrically fixed properties of aptitude test and nature of IQ came to be examined and challenged as the main aim of this study. In the quest to develop the abilities of the test takers in the light of formative assessment, aptitude test in its present form and function, as a psychometric tool routinely applied for student selection and placement, may be considered as biased, for it restricts and forestalls the potential evolution of the ability of the test takers. The argumentative results of the current study reveal that the era of exclusive speculation in the context of standardized tests at the price of the exclusion of socio-culturally-triggered pedagogical agendas and measures has expired, the former being associated with first test, then jump to the conclusion by virtue of a single numeric value and the latter underpinning the socio-culturally embedded motivational variables and alternative assessment. By theoretical implication, the predictive and consequential validity of aptitude test and IQ test are open to debate, being a possible incentive to the researchers to further explore the controversially decontextualized nature of aptitude and IQ test.
Please Login using your Registered Email ID and Password to download this PDF.
This article is not included in your organization's subscription.The requested content cannot be downloaded.Please contact Journal office.Click the Close button to further process.
[PDF]
Assessment of Heavy Metal Pollution using Mormyrus Rume
In this study, heavy metals Lead (Pb), Nickel (Ni), Mercury (Hg), Cadmium (Cd) and Selenium(Se) were determined to assess the pollution level of Opa Dam. The water of the dam and the liver, gills and fillet of six Momyrus rume and six Tilapia zilli were analyzed by AAS. The order of the metals in the water and fillets of (M. rume and T. zilli) were Pb>Ni>Se?Cd>Hg, Ni>Pb>Se?Cd?Hg and Ni>Pb>Se>Cd?Hg. Pb, Ni and Hg were higher above the standard permissible level (EPA2002, WHO2003,WPCL 2004 and SON 2007) in Opa Dam water while nickel was outrageous in the fillet above the FAO,1983 and WHO 1985 limit of heavy metals in fish food. Thus, the dam needs periodical monitoring for the safety of the fish consumers and for water usage.
Please Login using your Registered Email ID and Password to download this PDF.
This article is not included in your organization's subscription.The requested content cannot be downloaded.Please contact Journal office.Click the Close button to further process.
[PDF]
Attrition of Isfahani dialect: social class and age effects
Language attrition is the loss of a first or second language or a portion of that language by individuals. This paper examines the effects of social class and age on attrition of some old words and expressions of Isfahani dialect. To obtain the results, we distributed a questionnaire among 120 male/ female citizens from three social groups each including 40 upper-social class, 40 middle-social class and 40 low-social class with an age range of 25 to 65. The questionnaire involved 20 old words and expressions of Isfahani dialect, given to different social classes with different age ranges to evaluate the effects of these variables on the attrition of Isfahani dialect. The results show that the lower the age, there is the less knowledge about the meaning of words, on the contrary, the lower the social class, there is more knowledge about the meaning of the words. So the age and social class are two main factors contributing to the attrition of Isfahani dialect of Persian.
Please Login using your Registered Email ID and Password to download this PDF.
This article is not included in your organization's subscription.The requested content cannot be downloaded.Please contact Journal office.Click the Close button to further process.
[PDF]
Carbon Dioxide Corrosion Inhibition of Carbon Steel by using some surfactants based on sunflower oil and monoethanlamine
Novel surfactants based on sunflower oil and monoethanlamine were tested as inhibitors for the corrosion of steel in CO2-saturated 1% NaCl solution by Potentiodynamic polarization measurements and linear polarization resistance corrosion rate (LPR bubble test) at 50 oC. Inhibition efficiency increased with increase in the concentration of the studied compounds. Results show that the order of inhibition efficiency is II> I> III > IV >V. The adsorption of the inhibitors on the steel surface obeys Langmuir model and was physisorption.
Please Login using your Registered Email ID and Password to download this PDF.
This article is not included in your organization's subscription.The requested content cannot be downloaded.Please contact Journal office.Click the Close button to further process.
[PDF]
CFD Simulation of a Candle Flame Propagation
The study focused on the modelling of a candle flame using CFD modelling technique. Governing equation which formed the basis of a CFD modelling using SolidWorks flow simulation was developed, and the simulation result was compared with an existing experimental result. Modelling results show that the heat flux is maximum at the wick base and minimum at a distance of 0.1m from the wick tip, where it maintains averagely a constant value of 55.23kW/m2. This implies that the heat flux generated by a typical candle is large enough to ignite secondary objects such as wood materials located even 100 mm above the wick of the candle as they are capable of auto-ignition at heat flux above 40kW/m2. However, nearby objects that are not directly over the candle base can also be ignited, but must be located much closer for ignition to occur.
Please Login using your Registered Email ID and Password to download this PDF.
This article is not included in your organization's subscription.The requested content cannot be downloaded.Please contact Journal office.Click the Close button to further process.
[PDF]
Comparative screening of antibacterial and antifungal activities of some Weeds and medicinal plants leaf extracts: An in-vitro study
The aim of the study was to investigate and compare antibacterial and antifungal activity of leaves extract taken from four different plants Quisqualis indica Linn., Calotropis procera Ait., Achyranthes aspera Linn., and Ocimum sanctum Linn. against ten microorganisms comprising of five bacteria (Bacillus subtilis, Enterobacter aerogenes, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa) and five fungi (Alternaria porri, Aspergillus flavus, Aspergillus niger, Aspergillus oryzae, Penicillium chrysogenum) using well diffusion method. The in vitro study revealed that methanol extract was more effective than aqueous extract. Leaf extracts of Quisqualis indica Linn. and Achyranthes aspera Linn. was reported to be more effective on fungal species and on contrary leaf extracts of Calotropis procera Ait. and Ocimum sanctum Linn. was found more effective on bacterial species.
Please Login using your Registered Email ID and Password to download this PDF.
This article is not included in your organization's subscription.The requested content cannot be downloaded.Please contact Journal office.Click the Close button to further process.
[PDF]
Compositional and Technological Features of Fired Brick Samples Excavated from Gangaikondacholapuram,Tamilnadu (India)
With the aim of contributing to the knowledge of South-India Medieval age brick production, the mineralogy of briquettes excavated from the site of Gangaikondacholapuram (India) has been studied in order to make inferences concerning the clay preparation and firing techniques of that period. In this work, the fired brick finds (GKSB-1 to GKSB-5) were analysed by three distinct techniques namely Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and SEM/EDS to determine their mineralogical, chemical compositions and microstructures respectively. The relative similarity of compositions, the fine, dense and homogeneous microstructures and the presence of high-temperature phases such as pyroxenes, mullite, analcime and wusite in the sample coded GKSB-1, GKSB-3 and GKSB-5 showed the use of high firing temperatures, in the range 900–1000°C. While the presence of kaolinite and halloysite clay minerals in the briquettes GKSB-2 and GKSB-4 suggests the low temperature of firing (? 600°C) and may be related to adobe bricks, all indicate the adoption of non-calcareous clay with specialized brick making techniques by the brick makers of Gangaikondacholapuram in the 11thto 12th millennia CE. Key words: FT-IR, XRD, SEM/EDS, Firing techniques, ancient brick samples.
Please Login using your Registered Email ID and Password to download this PDF.
This article is not included in your organization's subscription.The requested content cannot be downloaded.Please contact Journal office.Click the Close button to further process.
[PDF]
Customer relationship management as a correlate of organizational performance in Nigerian banks
The main objective of this study is to find out if there is any relationship between Customer Relationship Management (CRM) and organizational performance in Nigerian banks. Relevant literature was reviewed and a model consisting of twenty six variables was conceptualized and tested by means of empirical data collected through a questionnaire survey. A total of two hundred and twenty four (224) copies of a questionnaire were administered, two hundred and eleven (211) copies were duly completed and returned. The result of the descriptive statistics shows that Customer Focused Services, Information and Communication Technology, Complaints Management, High Quality Service, Timeliness in Service Delivery, Security of Money, Friendliness of Employees, Ease of Opening Account, Competitive Charges on Services, Availability of Credit are CRM strategies used in Nigerian banks. It also reveals a difference in the perception of staff and customers. The result of the spearman rank correlation, Mann- Whitney U test and partial correlations provided support for these findings and confirm that there is a positive relationship between customer relationship management and organizational performance (as conceptualized by customer satisfaction, customer retention, increase in number of customers and increased net profit. It was also found that companies image and branch network intervene in the relationship between CRM and organizational performance.
Please Login using your Registered Email ID and Password to download this PDF.
This article is not included in your organization's subscription.The requested content cannot be downloaded.Please contact Journal office.Click the Close button to further process.
[PDF]