Introduction: Family is a strong communicative base of adolescent development, even though environment has its own influence as well. The study links the risks and substance use (tobacco, alcohol, and drugs) among adolescents to their perception about the functioning of family. Hence, a model of functional communication has been established aimed at preventing the defined problem. Methods: A random, voluntary, and anonymous survey was conducted that included a non-clinical sample of 1.018 adolescents in the Tuzla Canton. In a prospective method, the Youth Risk Behavior Surveillance System of the World Health Organization (WHO) was used, modified for this study. Results: The average prevalence of substance use is 81.2% and is significant for male adolescents. Some 33% of the respondents smoke tobacco, 25.4% drinks alcohol, while 12% of the surveyed adolescents use drugs. There is a significant correlation between a complete and broader family and tobacco and alcohol use, while incomplete family and household without family members are linked to tobacco use only. The risk of alcohol use is significantly related to father’s higher level of education while mother’s high school education is significantly related to tobacco and alcohol use. As perceived by adolescents, parents have negative attitudes about substance use (75%), they are more strict in setting the rules of behavior at home (45.5%) than outside, and control where more than with whom adolescents spend their free time (F=14.14, df [2.6], p<0.05). Conclusion: The functioning of a family (family structure, parents’ education, and the quality of communication in a family) is a significant factor in the context of tobacco, alcohol, and drug use.

We report a study of light-activated resistance switching in silicon oxide (SiOx) resistive random access memory (RRAM) devices. Our devices had an indium tin oxide/SiOx/p-Si Metal/Oxide/Semiconductor structure, with resistance switching taking place in a 35 nm thick SiOx layer. The optical activity of the devices was investigated by characterising them in a range of voltage and light conditions. Devices respond to illumination at wavelengths in the range of 410–650 nm but are unresponsive at 1152 nm, suggesting that photons are absorbed by the bottom p-type silicon electrode and that generation of free carriers underpins optical activity. Applied light causes charging of devices in the high resistance state (HRS), photocurrent in the low resistance state (LRS), and lowering of the set voltage (required to go from the HRS to LRS) and can be used in conjunction with a voltage bias to trigger switching from the HRS to the LRS. We demonstrate negative correlation between set voltage and applied laser power using a 632.8 nm laser source. We propose that, under illumination, increased electron injection and hence a higher rate of creation of Frenkel pairs in the oxide—precursors for the formation of conductive oxygen vacancy filaments—reduce switching voltages. Our results open up the possibility of light-triggered RRAM devices.We report a study of light-activated resistance switching in silicon oxide (SiOx) resistive random access memory (RRAM) devices. Our devices had an indium tin oxide/SiOx/p-Si Metal/Oxide/Semiconductor structure, with resistance switching taking place in a 35 nm thick SiOx layer. The optical activity of the devices was investigated by characterising them in a range of voltage and light conditions. Devices respond to illumination at wavelengths in the range of 410–650 nm but are unresponsive at 1152 nm, suggesting that photons are absorbed by the bottom p-type silicon electrode and that generation of free carriers underpins optical activity. Applied light causes charging of devices in the high resistance state (HRS), photocurrent in the low resistance state (LRS), and lowering of the set voltage (required to go from the HRS to LRS) and can be used in conjunction with a voltage bias to trigger switching from the HRS to the LRS. We demonstrate negative correlation between set voltage and applied laser power u...

In communication networks theory the concepts of networkness and network surplus have recently been defined. Together with transmission and betweenness centrality, they were based on the assumption of equal communication between vertices. Generalised versions of these four descriptors were presented, taking into account that communication between vertices $u$ and $v$ is decreasing as the distance between them is increasing. Therefore, we weight the quantity of communication by $\lambda^{d(u,v)}$ where $\lambda \in \left\langle0,1 \right\rangle$. Extremal values of these descriptors are analysed.

Original scientific paper Public administration is classified into specific organizational form that follows the development of all civilizations. Today more than ever we deal with creation of a new model of functioning of public administration. What do we need to learn in order to have it more functional and more effective, and accessible to citizens? One of the ways is certainly the introduction of the quality system according to demands of some of the standards such as requirements of ISO 9001 standard. Definitely we have to find the answers to the questions about the possibility of establishing such systems in the units of local self-government, acceptance by employees, understanding of the concept of service in this sector and many other questions. This paper presents a study on a sample of five municipalities in the Federation of Bosnia and Herzegovina, four of which have introduced the quality system. The study included employees who are in direct contact with their customers along with the employees’ opinions and standpoints concerning the established quality systems in their environment, as well as questions concerning their knowledge and level of established and introduced quality system through its individual elements. The work is certainly just the beginning on the path of full understanding of quality system in the units of local self-government.