During the process of developing herbal drugs with antimicrobial action, one of the most important phases is testing of antimicrobial activity in vitro. The disk-diffusion method is performed in Petri dish, on solid feeding surface. The disks with definite concentrations of antibiotics, pure substances or plant extracts are placed on the top of feeding plates previously inoculated with pure bacterial culture. Growth of the bacterial culture depends on its susceptibility to a tested substance; if the substance has antibacterial effect, a clear zone free of bacteria will form around the disk. Minimal inhibitory concentration (MIC) of the tested substance is determined by extrapolation of the regression line: concentration of the tested substance/radius or surface of area where growth of bacteria was inhibited. This method of testing microbial susceptibility to antibiotics, pure substances or plant extracts is highly sensitive and specific.

Background: Quality of life assessment in patients with Multiple sclerosis (MS) is invaluable for a proper evaluation of disease severity, appropriate choice of therapy and monitoring of its effects. The aim of this study was to assess the quality of life of patients with MS and to identify gender differences in examined outcome. Patients and Methods: A descriptive cross-sectional study was conducted from August 2010 to May 2011. The data were obtained by anonymous survey of 110 patients. Quality of life of the patients was measured by the instrument 'The World Health Organization Quality of Life (WHOQOL) - BREF'. Data on gender and age of patients, type of MS, the number of relapses during the last 2 years, current therapy, dose regimens of certain drugs, and the amount of money the patients spend each month for the purchase of drugs that are not issued at the expense of health insurance fund, were obtained using a distinct structured questionnaire. The collected data were analyzed using simple descriptive statistics and Student's t-test for independent samples. Results: Of the total 110 interviewed patients, 70% (n = 77) were female and 30% (n = 33) male. There were no significant gender differences in the disease duration, number of relapses in the last two years and spending of more than 1000 RSD per month for purchase of drugs that were not issued at the expense of the health insurance fund. Significantly better quality of life was recorded in women than men (p = 0.031), mainly on account of differences in the assessment of the domain of 'Environment' (p = 0.025), as measured by WHOQOL-BREF scale. Conclusion: This study has shown that females tolerate difficulties caused by multiple sclerosis better than men, and also have a better quality of life than men with the same clinical form of the disease and identical symptoms, treated with the same therapy.

Primary psychiatric disorders are frequently associated with electrolyte disorders, which could be caused by medication. We performed a systematic review of the literature in order to discover published cases of electrolyte disorders associated with risperidone use. The databases Medline and Scopus were searched and 317 publications were retrieved containing the following keywords: risperidone, hyponatremia, hypernat remia, hypokalemia, hyperkalemia, hypocalcemia and hypercalcemia. We included in our review the following publication types: the original scientific research, case reports, review of literature and letters to the editor. Case reports and observational studies associating risperidone with hyponatremia or hypokalemia, as well as with hypocalcemia were found. In spite of sporadic case reports of risperidone induced electrolyte disorders, conflicting opinions and results of other studies quest ion the certainty of this association. Further research is necessary to confirm and enlighten the association between risperidone and electrolyte disorders.

Poster: "ECR 2011 / C-2214 / Heterogeneity in DCE-MRI maps: a biomarker for tumor response?" by: "L. Alic1, M. van Vliet1, C. F. van Dijke2, A. M. M. Eggermont1, W. J. Niessen1, J. F. Veenland1; 1Rotterdam/NL, 2Schoorl/NL"

. Visually grounded human-robot interaction is recognized to be an essential ingredient of socially intelligent robots, and the integration of vision and language increasingly attracts attention of researchers in diverse fields. However, most systems lack the capa-bility to adapt and expand themselves beyond the preprogrammed set of communicative behaviors. Their linguistic capabilities are still far from being satisfactory which make them unsuitable for real-world applications. In this paper we will present a system in which a robotic agent can learn a grounded language model by actively interacting with a human user. The model is grounded in the sense that meaning of the words is linked to a concrete sensorimotor experience of the agent, and linguistic rules are automatically extracted from the interaction data. The system has been tested on the NAO humanoid robot and it has been used to understand and generate appropriate natural language descriptions of real objects. The system is also capable of conducting a verbal interaction with a human partner in potentially ambiguous situations.