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12
Approach: The experimental results showed that the agarose gel were effective in
removing Pb (II) from solution. Biosorption equilibrium was approached within 4 h.
Pseudo second order was applicable to all the sorption data over the entire time range.
Results: The sorption data conformed well to both the Langmuir and the Freundlich
isotherm model. The maximum adsorption capacity (qmax) onto agarose gel was 115 mg
g-1 for Pb (II). The maximum uptake of metal ions was obtained at pH 2.0. At temperature
35°C, the biosorption of metal ions was found to be highest, with increase or decrease in
temperature resulted in a decrease in the metal ions uptake capacity.
Conclusion: Elution () experiments were carried out to remove Pb (II)
ions from loaded agarose gel and the bound metal ions could be eluted successfully using
0.1 M EDTA solution. The results suggest that agarose gel can be used as a biosorbent for
an efficient removal of Pb(II) ions from aqueous solution.
Key words: Uptake, recovery, biosorption, lead, agarose gel
Abstract 3
Article Title: Women Engineers in Kuwait: Perception of Gender Bias
Authors: P.A. Koushi, H.A. Al-Sanad, and A.M. Larkin of Kuwait University
Abstract
This study represents an attempt to quantify attitudes toward gender bias among
profession women engineers working in the State of Kuwait. The major findings that
emerged were as follows: a) Since 1970, Kuwait has witnessed an enormous growth rate
in the participation of women in higher education. b) With respect to the job-related
factors of salary scale, professional treatment, responsibility, benefits, and vacation, a
clear majority (68%) of the professional Kuwaiti women engineers surveyed expressed a
feeling of equality with or even superiority to their male counterparts. c) The one job-
related factor in which significant gender bias was found to be in operation was that of
promotion to upper management positions. In this criterion, the women engineers
surveyed felt “less than equal” to their male colleagues.
Abstract 4
Structuring international service operations: a theoretical framework and a case
study in the IT-sector
Bert Meijboom and Migon Houtepen
International Journal of Operations & Production Management
Vol. 22 No. 8
Research paper
Purpose: The specific challenges with which companies pursuing international
manufacturing strategies are faced, if their output also contains a service dimension, are
addressed.
Design/methodology/approach: A theoretical framework is proposed based on
three virtually complementary perspectives by integrating international production,
demand, and contemporary ICT-based theory. Subsequently, an exploratory case study in
a pure service environment is described that illustrates the value of the framework.
Findings: It is possible, for example, to apply the theoretical framework to case
studies in internationally-operating companies delivering a mix of goods and services.
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