Logo

Publikacije (45396)

Nazad
E. Cunningham, V. Lekić

Thickness and seismic velocities of sedimentary sequences strongly affect their response during earthquakes, which can prolong and amplify groundmotions. We characterize shallow structure of Atlantic Coastal Plain (ACP) sediments using a passive-seismic approach based on high-frequency P-to-S receiver functions. We map the site-specific fundamental frequency for 64 USArray Transportable Array stations and confirm that the method yields results similar to those from traditional spectral ratio techniques, with fundamental frequencies between 0.1 and 1 Hz. In addition, using sediment S-wave reverberations and P-to-S phase arrival times measured directly from the receiver functions, we invert for average Sand P-wave velocity profiles of the ACP sedimentary strata. We find that VS increases with depth following a power-law relationship (VS ∝ z p ) whereas the increase of VP with depth is more difficult to constrain using converted wave methods; therefore, we choose to use the Brocher (2005) relationship to obtain VP through a VP= VS relationship. Finally, we use the variation of measured S-reverberation amplitudes with depth to validate these velocity profiles. These results have implications for seismic shaking across the ACP, which covers large portions of the eastern United States.

Ganić Mehmed

Abstract The paper seeks to empirically explore the variations and changes in the degree of International Financial Integration (IFI) between the European Transition countries and Post-Transition countries between 2000 and 2016. The estimation of parameters was made using the Generalized Method of Moment (GMM) approach. The findings of the study reveal that European Post-Transition countries have relatively more developed financial systems compared to European Transition countries, where private credit market is still playing an overwhelmingly important role in a financial system while stock markets are in an early stage of development constituting a relatively small share of the financial system. Even though in Panel 3 there are significant control variables, our findings reveal that IFI in European transition countries are affected neither by stock market capitalization and private credit markets. Consequently, they can’t be used in this stage of financial development for explanation of variations and changes in the degree of IFI.

Maša Islamčević Razboršek, M. Ivanović, P. Krajnc, M. Kolar

For the isolation of selected phenolic compounds from dried chokeberries, natural deep eutectic solvents (NADESs) were investigated as a green alternative to conventionally used extraction solvents. Four types of NADESs were synthesised, with choline chloride as the hydrogen bond acceptor in combination with different hydrogen bond donors (sugars, organic acid and urea). Ultrasound-assisted extraction was used to improve the extractability of the phenolic compounds and the results were compared to those obtained with 80% methanol as the extraction media. The highest values of total phenols and total flavonoids were found in the extract obtained with choline chloride–fructose NADES (36.15 ± 3.39 mg gallic acid g−1 dry weight (DW) and 4.71 ± 0.33 mg rutin g−1 DW, respectively). The extraction recoveries for the individual phenolic compounds depended strongly on the phenolic compound’s structure, with relative mean values between 70% and 97%.

Marlena R. Fraune, Benjamin C. Oistad, Catherine E. Sembroski, Kathryn A. Gates, M. M. Krupp, S. Šabanović

Ctrs Shinichi Nagata, Ctrs Jennifer Ann Piatt, Ms Eat Ctrs Cedomir Stanojevic, S. Šabanović, Casey C. Bennett, Natasha Randall

Socially assistive robots (SARs) may impact health outcomes when facilitated by recreational therapists (RTs). It is unclear if RTs have the knowledge or perceive SARs as a relevant facilitation technique. This study sought to understand if a professional continuing education session on SARs improves comfort level. Seventy RTs and students attended the training and completed a retrospective survey. The findings suggest that the training improved participants’ interest and willingness to incorporate SARs, felt less intimidated by the prospect of incorporating SARs, less afraid of making a mistake while using SARs, and found SARs to be a relevant intervention. Further studies are warranted to understand the use of SARs within RT practice. Incorporating emerging technology into practice may create innovative therapeutic interventions to address clinical outcomes.

Alija Dervić, B. Goll, H. Zimmermann

An integrated quadruple voltage mixed quenching, and active resetting circuit (Q2RC) in a 150 nm CMOS process is presented in this paper. The Q2RC features an excess-bias voltage of 7.2 V, which is four times the 1.8 V supply voltage. The dead time can be adjusted from 7 ns to 29 ns, which corresponds to the count rate range from 34 Mcps to 142 Mcps. Post-layout simulation results for an external SPAD with an equivalent parasitic capacitance of 4 pF are reported. The achieved quenching time of the Q2RC is 1.75 ns, which results in 4.05 GV/s quenching slew rate, while the delay time is 1.1 ns, and the resetting time is 2.55 ns.

Kurian Polachan, Belma Turkovic, Prabhakar T. Venkata, C. Singh, F. Kuipers

Tactile internet" refers to a network that can support real-time interactions between human operators and remote cyber-physical systems as if they were near to each other. For this, the network should support ultra-low latency communication, often referred to as the 1ms challenge. However, we observe that network requirements, such as latency and bandwidth, of tactile internet based cyber-physical systems or Tactile Cyber-Physical Systems (TCPS) are not static: they severely fluctuate over time. Therefore, for TCPS, static provisioning of network resources is sub-optimal. For optimal utilization of network resources, we propose a mechanism to, per TCPS flow, dynamically create, destroy and switch network slices, based on the network resources needed at that time. Our solution consists of two main components. First, we develop a clustering algorithm to determine the slices and their specifications required to support a TCPS flow. Second, we leverage Software-Defined Networking (SDN) and P4-programmable switches to enable on- the-fly provisioning and switching of these slices.

H. C. D. Resende, Nina Slamnik-Kriještorac, C. Both, J. Márquez-Barja

The computer network industry is preparing for the revolution caused by the virtualization of the network infrastructure. The virtualization of network functions, together with the network programmability, is a fundamental skill-set required in both electrical engineers and computer scientists, which will become even more significant in the upcoming years. Therefore, in this article, we present an educational framework for Service Function Chaining (SFC) practical teaching to undergraduate students aiming to prepare them for future Information and Communication Technologies (ICT) and communication networks market that will demand skillful professionals in the domain. The educational framework was designed for the Network Management course at the University of Antwerp. To structure the content of the framework’s sessions, we explain the fundamental concepts behind the SFC. Moreover, we detail the framework objectives, sessions, and how we plan to evaluate it. We also present facts and works that endorse the hands-on teaching preparing students for the research and development in the new generation communication networks arena. After, we discuss the methodology of the educational framework alignment with joint ACM/IEEE Computer Engineering Curricula for Network Management courses. Next, we present possible outcomes during the course evaluation using the survey. We conclude which this educational framework achieves the necessary core learning outcomes to empower students concerning the practical steps when deploying and managing communication networks and the virtualization techniques which nowadays are being applied.

S. Bajramović, J. Alić, Edna Skopljak, Adisa Chikha, Sanela Vesnic, Velda Smajilbegovic, Damir Aganović

Introduction: Non-muscle-invasive bladder cancer (NMIBC) is usually effectively treated with transurethral resection (TUR), most often followed by intravesical instillation of bacillus Calmette-Guérin (BCG) or intravesical chemotherapy. Although the precise mechanism of BCG immunotherapy is still unclear, a local immune response is presumed. However, a number of severe side effects and complications are related to intravesical immunotherapy. AIM: Aim of this report is to present rare case of the renal granulomatous disease in a patient previously treated with intravesical instillation of BCG immunotherapy, following TURBT. In addition, we performed review of previously reported cases of renal granulomas following intravesical BCG immunotherapy. Case report: A 79-year-old man was presented to Urology Clinic due to clinically verified tumor of the urinary bladder. After transurethral resection of bladder tumor, histopathological analysis revealed the diagnosis of papillary urothelial high-grade pT1 carcinoma. Intravesical BCG immunotherapy was initiated, according to protocol currently used in our institution. Upon completion of therapy with BCG, we re-examined the patient and, using ultrasound, found a change in the right kidney, resembling moth bites not seen on CT scan before TURBT. Additionally, CT-guided core-needle biopsy of the affected kidney was performed, and the specimen was sent for histopathological analysis, which revealed chronic necrotizing granulomatous inflammation. Antituberculotic therapy was initiated for 6 months. Upon completion of antituberculotic therapy, control CT-scan was performed at follow-up, indicating regression of changes on the right kidney. Conclusion: This case report emphasizes the importance of consistent implementation of follow-up protocol and the identification of lesions during the asymptomatic period and enables the proper treatment of the disease. To reduce the incidence of adverse effects of BCG treatment for bladder tumors, an individualized approach is needed.

Maid Omerović, Herzegovina, S. Resic, Ahmed Palića, Tarik Baždalić

The development of science is essential when it comes to the development of society, while the mathematics necessary for the development of science. The fact that the children are all clearer, more capable and versatile, and their mathematical knowledge smaller and worse, motivated me to this research.How would our society be better you need to choose talented and creative young people who will represent the same company. One way of selecting children, and choosing the best are just competitions. In this work, attention will be focused on additional classes and competitions of teaching mathematics, as well as their importance in the education and development of children in schools.When it comes to gifted students, one of the main events where they can demonstrate their knowledge and skills are the competition.The overall objective of this research is to determine the extent to which the additional classes represented in schools and how many students go to additional classes and competitions in mathematics.The study included 103 primary school students in the municipality of Ilijaš. The results obtained in this study mostly on the representation of additional teaching of mathematics in schools or with, a small number of students. Because the necessary mathematical talent, the will and desire to learn mathematics. Viewed from the perspective that the disciples mathematics not so favorite subject, these are the expected results.

M. Jovanović, I. Moric, B. Nikolić, A. Pavić, E. Svirčev, L. Šenerović, D. Mitić-Ćulafić

Many traditional remedies represent potential candidates for integration with modern medical practice, but credible data on their activities are often scarce. For the first time, the anti-virulence potential and the safety for human use of the ethanol extracts of two medicinal plants, Persicaria maculosa (PEM) and Bistorta officinalis (BIO), have been addressed. Ethanol extracts of both plants exhibited anti-virulence activity against the medically important opportunistic pathogen Pseudomonas aeruginosa. At the subinhibitory concentration of 50 µg/mL, the extracts demonstrated a maximal inhibitory effect (approx. 50%) against biofilm formation, the highest reduction of pyocyanin production (47% for PEM and 59% for BIO) and completely halted the swarming motility of P. aeruginosa. Both extracts demonstrated better anti-quorum sensing and antibiofilm activities, and a better ability to interfere with LasR receptor, than the tested dominant extracts’ constituents. The bioactive concentrations of the extracts were not toxic in the zebrafish model system. This study represents an initial step towards the integration of P. maculosa and B. officinalis for use in the treatment of Pseudomonas infections.

S. Abdelnour, M. A. Abd El-Hack, A. Noreldin, G. Batiha, A. M. Beshbishy, Husein Ohran, A. Khafaga, S. Othman et al.

Simple summary Halophytic plants are a promising animal feed source. However, the extreme NaCl2 salt content constraints their use. Excess diet salt adversely affects growth performance and animal’s reproduction worldwide. This review focuses on the impact of high salt intake on growth performance and reproduction ability in animals. Abstract Salinity is a reliable issue of crop productivity loss in the world and in certain tropical and subtropical zones. However, tremendous progress in the genetic improvement of plants for salinity tolerance has been made over several decades. In light of this, halophytic plants can be used as animal feeds and have promising features because they are a good feed resource. However, the main constraint of saline pasture systems is the extreme concentration of NaCl salt in drinking water and forage plants for grazing animals. Ecological reports revealed that excess diet salt causes mortality and morbidity worldwide. Animal fed halophytic forages may have adverse effects on growth performance and reproductive function in males and females due to inducing reductions in hormone regulation, such as testosterone, FSH, LH, and leptin. It was indicated that high salt intake promotes circulating inflammatory factors in the placenta and is associated with adversative effects on pregnancy. This review focuses on the scientific evidence related to the effect of high salt intake on growth performance, spermatogenesis, sperm function, and testicular morphology changes in male animals. In addition, the review will also focus on its effect on some female reproductive features (e.g., ovarian follicle developments, placental indices, and granulosa cell function).

Cardiopulmonary exercise monitoring is a valuable method not only for the evaluation of medical health, but also for the assessment of patients with cardiac or pulmonary dysfunction. Spiroergometry provides additional criteria for the assessment of cardiopulmonary efficiency compared to simple ergometry. Maximal oxygen consumption (VO2max) is the most critical variable during spiroergometry. Most submaximal exercise measures provide the heart rate (HR) response to predetermined workloads in equations or nomograms used to predict VO2max. According to previous studies, the heart rate is divided into five fields. In this paper, we are doing a new redistribution of heart rates-to-workloads into seven fields, corresponding to the ergo bar. In other words, an answer is given based on the initial anthropological values of the subjects, when and in which field there will be a mismatch between the lung capacity of the subjects and the power required for that field.

The aim of the research was to determine the effects of specially programmed physical and health education with the application of content from sports games (basketball, volleyball, and handball) in the duration of one semester to qualitative changes in situational motor skills in students in the fifth grade of elementary school. The study included 106 pupils of the V class, aged 10 to 11 years, clinically and mentally healthy, and with no pronounced morphological and locomotor impairments. The sample of respondents was divided into two subgroups, an experimental group (53 pupils), who carried out physical education classes according to the modified plan and program of sports games (basketball, volleyball, and handball) for a semester and a control group (53 pupils) who attended regular classes from physical education according to the current curriculum. In order to determine qualitative changes in situational motor abilities, descriptive statistics, T-test, and factor analysis were used. The results of the factor analysis show that there were statistically significant qualitative changes, and based on the results of t-tests it can be concluded that they are statistically significant at levels less than 1% for the SMKVLS variable, and at levels less than 5% for the variables SMRBLZ and SMRVLS. In the final measurement, there was a change in value and thus a difference in the variables of the SMKBLK after the program of work.

Nema pronađenih rezultata, molimo da izmjenite uslove pretrage i pokušate ponovo!

Pretplatite se na novosti o BH Akademskom Imeniku

Ova stranica koristi kolačiće da bi vam pružila najbolje iskustvo

Saznaj više