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Aim of the current research was examining the relation between the quality of work life components and four career anchors among the Personnel of Esfahan's Iron Foundry Organization. The data collection instruments were two researcher-made questionnaires about the quality of work life. The results show that among the eight components of the quality of work life, those which were most influential on the four career anchors were social integrity and attachment in the organization. Furthermore, it can be concluded that the quality of work life of this Iron Foundry personnel in each one of the career anchors is at an average level.

The current research has examined the effect of advanced organizers within web-based instruction on the learning and retention of concepts in chemistry courses. The research method is quasi-experimental with non-equivalent groups and using pre-test and post-test. The results showed that in terms of the level of learning, there was not a significant statistical difference between the students who received advanced organizer (experiment group) and those who did not receive it (control group); however, the amount of retention was significantly greater in the experiment group than in the control group.

Recognizing ethical issues in e-learning and estimating teacher awareness about ethical principals is the main goal of this study .The literature reviewed and the result of survey of Dezfol teachers analyzed descriptively and inferentially. 65% of surveyed teacher sited that they aren’t aware or have very limited awareness about ethical issues in using ICT in education. There was no significant difference between male and female teachers in terms of the level of familiarity with ethical issues. Low correlation (. 34) between teachers ICDL Skill training and teachers’ familiarity with ethical issues implies to the weakness of teacher ICDL training.

This descriptive research aimed at examining self-directed learning among teachers, and was carried out by survey method. Its statistical population comprised preliminary school teachers of Esfahan, Iran, in the academic year 2010–2011. The research sample comprised of 400 individuals. The instrument used was Fischer et al self-directed learning readiness scale questionnaire. After the data were collected, the reliability coefficient was calculated via Cronbach's α (0.88). The data then were analyzed through Student t-test for independent groups and one-way analysis of variance (ANOVA) with Scheffe follow-up test. The results showed that self-directed learning has a high level among teachers.

The current research is a descriptive survey with the goal of evaluation of the reliability and validity of Fisher, King and Tague (2001) self-directed learning scale. Its statistical population comprised all preliminary schoolteachers of Esfahan, Iran, in the academic year 2010–2011.the reliability coefficient was calculated via Cronbach's α (0.88). Confirmatory factor analysis (CFA) was used in order to evaluate the validity; according to the results, and taking into account the index of fit, the model proved to be approximately fit. Finally, this scale can be used in order to evaluate self-directed learning among teachers in various researches.

In this study, design and fabrication of 103Pd brachytherapy seed was investigated. The excitation functions of 103Rh(p,n) 103Pd and 103Rh(d,2n)103Pd reactions were calculated using EMPIRE (version 3.1 Rivoli), ALICE/ASH and TALYS-1.2 codes, the TENDL-2010 database and compared with the published data. Production of 103Pd was done via 103Rh(p,n)103Pd nuclear reaction. The target was bombarded with 18 MeV protons at 200 μA beam current for 15 h. After irradiation and radiochemical separation of the electroplated rhodium target, the optimum condition for absorption of 103Pd into Amberlite®IR-93 resin was achieved at 0.5 M HCl. Version 5 of the (MCNP) Monte Carlo radiation transport code was employed to calculate the dosimetric parameters around the 103Pd brachytherapy seed. Finally the calculated results were compared with published results for other commercial sources. © 2011 Elsevier Ltd. All rights reserved.

Rhenium-186, having a half-life of 90.64 h, is an important radionuclide, used in metabolic radiotherapy and radio immunotherapy. 186 Re hydroxyethylidene diphosphonate (HEDP) is a new compound used for the palliation of painful skeletal metastases. Its production is achieved via charged-particle-induced reactions; the data are available in EXFOR library. For the work discussed in this paper, production of 186 Re was done via nat W(p,n) 186 Re nuclear reaction. Pellets of nat W were used as targets and were irradiated with 15, 17.5, 20, 22.5, 25 MeV proton beams at 5 μA current. The radiochemical separation was performed by the ion exchange chromatography method. The production yield achieved at 25 MeV was 1.91 MBq·μA -1 ·h -1 . Excitation functions for the 186 Re radionuclide, via 186 W(p,n) 186 Re and 186 W(d,2n) 186 Re reactions were calculated by ALICEASH and TALYS-1.0 codes to validate and fit the experimental data and to obtain a recommended set of data for 186 W(p,n) 186 Re reaction. Required thickness of the targets was obtained by SRIM code for each reaction.

Strontium carbonate deposition on copper substrate was carried out by the sedimentation method in order to produce yttrium-86. Natural strontium carbonate thick layer was prepared with 480 mg SrCO(3), 220 mg ethyl cellulose, and 7.5 mL acetone. This optimum condition is a result of several repeated experiments with different amount of ethyl cellulose and acetone. Target quality control was done by SEM photomicrograph and thermal shock test. The deposited target was irradiated at 30 microA current and 15 MeV proton beam for 12 min.