Aim To establish presence of segmental instability in patients operated with standard discectomy comparing measurement of translation and rotation on postoperative functional radiographs of lumbosacral spine with reference values,and to explore difference between patients operated on one or two levels. Methods The study included 71 patients, who were operated due to herniated lumbar disc. They were divided into two groups operated on one level (group A) or two adjacent levels (group B). All patients had been imaged in a standing position with functional lateral radiography. Radiographic images were digitized and then computerized measurement of translation and rotation was made. Measurement data were compared between the groups and with reference values obtained in healthy adults. Results Standard lumbar discectomy leads to an increase in translation, however, it reached statistical significance only for L4/L5 level and a decrease of rotation, which showed statistical significance for all samples, relative to the reference values. There was no statistically significant difference in the values of translation and rotation between the groups for corresponding levels, except for the value of the rotation for L4/L5 level as adjacent, unoperated level. Comparison of translation and rotation between the operated and adjacent levels did not show a statistically significant difference. When it comes to comparing the measured and predicted translation, there was a statistically significant difference only at the L5/S1 as anunoperated level. Conclusion Standard discectomy does not lead to radiologically significant segmental instability, and two-level surgery has not caused more pronounced signs of instability comparing to onelevel surgery.

Aim To evaluate animpact of eight dimensions of self-rated health measured by the SF-36 questionnaire on visits to family physicians among people older than 65. Methods This cross-sectional study was carried out in family medicine outpatient departments of the Public Institution Primary Health Care Center of Canton Sarajevo, Bosnia and Herzegovina. The study included 200 respondents divided into two age groups:18-65 (n=100) and older than 65 (n=100). The SF-36 questionnaire for self-assessment of health status and a questionnaire for the evaluation of socio-demographic characteristics of respondents and health care utilization were used. Results In the group of respondents aged 18-65 the dimension that was related to physical functioning was assessed as best(79.1±25.6), while the dimension concerning the vitality was assessed as the worst (56.1±19.9). In the group of respondents older than 65 the dimension related to social functioning was assessed as best (65.4±24.9), and the dimensions related to general health was assessed as worst (47.7±20.4). Family physicians were visited by significantly more respondents older than 65 than those from the age group 18-65 (94% vs.74%) (p= 0.000). Scores on the scales of general health (p=0.021) and social functioning (p=0.024) in respondents older than 65 had a significant impact on visits to family physicians. Conclusion Poor self-rated general health and better social functioning are important predictors of visiting family physicians by elderly persons.

Abstract Prevalence of cognitive disorders is high in maintenance hemodialysis patients. Montreal cognitive assessment (MoCA) is used for detecting and evaluation of cognitive disorder degree in this patient population. In examined patient population, only 5 (12.5%) of them had normal cognitive function (MoCA ≥26). Mild cognitive impairment (MoCA 18-26) was found in 65.9% (29) patients, while moderate cognitive disorder (MoCA 10-17) was detected in 6 (21.6%) patients. Major cognitive disorder wasn’t detected in examined population. Statistically significant correlation was not established between laboratory parameters and overall MoCA score. Statistically significant correlation, however, was established between MoCA item that evaluates space and time orientation and intermediate secondary hyperparathyroidism and space and time orientation and severe secondary hyperparathyroidism. Hemodynamic instability during hemodialysis and silent ischemia of the brain are increasing risk of appearance of cognitive disorders in maintenance hemodialysis patients.

Based on a new family of NiII cubane-like clusters, this work addresses current challenges in synthesis, analysis and dynamics of single-molecule-magnet (SMM) systems. Investigation of various synthetic routes and desorption-sorption processes yielded series of isomorphous compounds: [Ni4L4(CH3OH)4]·xsolv, [Ni4L4(CH3OH)4] and [Ni4L4]. In order to analyze these deceivingly simple materials, several analytical and quantum mechanical methods had to be used. This revealed materials with mixed lattice solvents, statistical disorder of the solvent, and disordered [Ni4L4] cores, what offered an insight into risks of the self-assembly process and interconversion dynamics of the investigated NiII family. These findings also allowed structural-magnetic relationships to be established, and the outcomes were exploited in two turns: in first, effect of the coordinated and lattice solvent on the magnetic properties was examined, and in second, magnetic properties were used to facilitate crystal structure determination.

The amount of data at the global level has grown exponentially. Along with this phenomena, we have a need for a new unit of measure like exabyte, zettabyte, and yottabyte as the last unit measures the amount of data. The growth of data gives a situation where the classic systems for the collection, storage, processing, and visualization of data losing the battle with a large amount, speed, and variety of data that is generated continuously. Many of data that is created by the Internet of Things, IoT (cameras, satellites, cars, GPS navigation, etc.). It is our challenge to come up with new technologies and tools for the management and exploitation of these large amounts of data. Big Data is a hot topic in recent years in IT circles. However, Big Data is recognized in the business world, and increasingly in the public administration. This paper proposes an ontology of big data analytics and examines how to enhance business intelligence through big data analytics as a service by presenting a big data analytics services-oriented architecture. This paper also discusses the interrelationship between business intelligence and big data analytics. The proposed approach in this paper might facilitate the research and development of business analytics, big data analytics, and business intelligence as well as intelligent agents.

This paper aims to address more confident mathematical laws to explain a literary phenomenon. For this we studied the play "O scrisoare pierduta (Lost Letter)" written by Ion Luca Caragiale, in order to establish some connection between the characters but also to show certain aspects hidden by the author under the personality of the characters. We use transdisciplinary research to get from measurements and calculations results who will demonstrate objective of the proposed research. The challenge is to find those favorite characters by the author. Information and communications technology is a tool for research that will integrate this knowledge for modeling and interfacing.

The popularity of solar heating systems is increasing for several reasons. These systems are reliable, adaptable and pollution-free, because the renewable solar energy is used. There are many variants of solar systems in the market mainly constructed with copper pipes and absorbers with different quality of absorption surface. Taking into account the advantages and disadvantages of existing solutions, in order to increase efficiency and improve the design of solar panel, the innovative solution has been done. This new solar panel presents connection of an attractive design and the use of constructive appropriate materials with special geometric shapes. Hydraulic and thermotechnical tests that have been performed on this panel showed high hydraulic and structural stability. Further development of the solar panel will be done in the future in order to improve some noticed disadvantages.

The paper presents the traffic control system controlled through a PLC which takes the signals from different sensors on roads. The global system developed ensures the coordination of four intersections, setting a path that respects coordination type green light, the integration of additional sensors, the implementation of probes radar to inform traffic participants about recommended speed for accessing the green state located in the intersection that will follow to cross.