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Jangwon Lee, Jingya Wang, David J. Crandall, S. Šabanović, G. Fox

Real-time object detection is crucial for many applications of Unmanned Aerial Vehicles (UAVs) such asreconnaissance and surveillance, search-and-rescue, and infras-tructure inspection. In the last few years, Convolutional NeuralNetworks (CNNs) have emerged as a powerful class of modelsfor recognizing image content, and are widely considered inthe computer vision community to be the de facto standardapproach for most problems. However, object detection basedon CNNs is extremely computationally demanding, typicallyrequiring high-end Graphics Processing Units (GPUs) thatrequire too much power and weight, especially for a lightweightand low-cost drone. In this paper, we propose moving thecomputation to an off-board computing cloud, while keepinglow-level object detection and short-term navigation onboard. We apply Faster Regions with CNNs (R-CNNs), a state-of-the-art algorithm, to detect not one or two but hundreds of objecttypes in near real-time.

Mohamed Elwekeil, M. Alghoniemy, O. Muta, Adel B. Abdel-Rahman, H. Gačanin, H. Furukawa

M. Rozman, Michael Fernando, B. Adebisi, Khaled Maaiuf Rabie, R. Kharel, Augustine Ikpehai, H. Gačanin

This paper proposes a hybrid circuit between a conformal strongly-coupled magnetic resonance (CSCMR) and a strongly-coupled magnetic resonance (SCMR), for better wireless power transmission (WPT). This combination promises to enhance the flexibility of the proposed four-loop WPT system. The maximum efficiency at various distances is achieved by combining coupling-matching between the source and transmitting coils along with the coupling factor between the transmitting and receiving coils. Furthermore, the distance between transmitting and receiving coils is investigated along with the distance relationship between the source loop and transmission coil, in order to achieve the maximum efficiency of the proposed hybrid WPT system. The results indicate that the proposed approach can be effectively employed at distances comparatively smaller than the maximum distance without frequency matching. The achievable efficiency can be as high as 84% for the whole working range of the transmitter. In addition, the proposed hybrid system allows more spatial freedom compared to existing chargers.

A. Mundl, M. Touboul, M. Jackson, J. Day, M. Kurz, V. Lekić, R. T. Helz, R. Walker

The modern materialistic worldview has influenced educational institutions to emphasize more on inculcating students with skills and knowledge to the neglect of the students’ values and virtues. Consequently, education is a commodity, shaped according to the market. Education, influenced by the market, neglects a comprehensive approach and students’ intellectual, physical and cultural needs. Market’s preference for the technical and natural sciences contributed towards the creation of the mechanical conception of education. The market also influenced the institutions of higher learning to neglect the role of humanities and social sciences. The humanity is also at the break of the ecological, nuclear, chemical and biological crisis, terrorism, moral degeneration, and there is increasing disregard for culture, tradition, and values. These challenges raised questions about outcomes of modern education. Since such education could not balance and fulfill students’ material, intellectual and cultural needs; therefore, this paper examines how the holistic learning and teaching can pave the way towards the 21st-century education model.

Introduction: Osteoporosis is a skeletal system disease characterized by decline of bone mass and deterioration of bone microarchitecture, which leads to increased bone fragility and, consequently, a greater risk of fractures. Postmenopausal osteoporosis generally occurs between 51 and 75 years of age following ovarian failure. Our aim was to investigate if specific lifestyle habits, i.e., smoking cigarettes and physical activity, as well as the intake of dietary supplements, affect bone mineral density (BMD) in postmenopausal women.Methods: Ultrasound (US) and dual energy X-ray absorptiometry (DEXA) data, obtained between 2008 and 2009 year, were retrospectively reviewed for 150 women in postmenopause, 50-65 years old, who live in Sarajevo Canton. The women were classified into two groups: Group A (75 postmenopausal women who underwent US of the left heel bone); control group B (75 postmenopausal women who underwent US of the left heel bone and had a DEXA scan of the lumbar spine and left hip).Results: The study included 150 women with the average age of 55.39 years. In the total sample, 24.7% of women took calcium and vitamin D supplements, and no statistically significant difference was observed between the groups. In the total sample, the prevalence of osteoporosis was significantly different between smokers and nonsmokers; i.e., osteoporosis was more frequent in women who smoked cigarettes. On average, women in both groups reported low physical activity; the difference was not statistically significant.Conclusions: Menopause is a known risk for osteoporosis. Our results showed that the length of menopause is closely associated with osteoporosis occurrence.

Miran Pehar, D. Sekulić, Nedim Šišić, M. Spasić, O. Uljević, A. Krolo, Z. Milanović, T. Sattler

The importance of jumping ability in basketball is well known, but there is an evident lack of studies that have examined different jumping testing protocols in basketball players at advanced levels. The aim of this study was to assess the applicability of different tests of jumping capacity in identifying differences between (i) playing position and (ii) competitive levels of professional players. Participants were 110 male professional basketball players (height: 194.92±8.09 cm; body mass: 89.33±10.91 kg; 21.58±3.92 years of age; Guards, 49; Forwards, 22; Centres, 39) who competed in the first (n = 58) and second division (n = 52). The variables included anthropometrics and jumping test performance. Jumping performances were evaluated by the standing broad jump (SBJ), countermovement jump (CMJ), reactive strength index (RSI), repeated reactive strength ability (RRSA) and four running vertical jumps: maximal jump with (i) take-off from the dominant leg and (ii) non-dominant leg, lay-up shot jump with take-off from the (iii) dominant leg and (iv) non-dominant leg. First-division players were taller (ES: 0.76, 95%CI: 0.35-1.16, moderate differences), heavier (0.69, 0.29-1.10), had higher maximal reach height (0.67, 0.26-1.07, moderate differences), and had lower body fat % (-0.87, -1.27-0.45, moderate differences) than second-division players. The playing positions differed significantly in three of four running jump achievements, RSI and RRSA, with Centres being least successful. The first-division players were superior to second-division players in SBJ (0.63, 0.23-1.03; 0.87, 0.26-1.43; 0.76, 0.11-1.63, all moderate differences, for total sample, Guards, and Forwards, respectively). Running vertical jumps and repeated jumping capacity can be used as valid measures of position-specific jumping ability in basketball. The differences between playing levels in vertical jumping achievement can be observed by assessing vertical jump scores together with differences in anthropometric indices between levels.

Introduction: Perinatal asphyxia (PA) results in hypoxic damage to almost all organs, kidneys being most frequently (40%) affected. Objectives: was to determine the incidence of acute renal failure (ARF) in term neonates with PA and to correlate it with severity of hypoxic ischemic encephalopathy (HIE). Materials and methods: This prospective study of 54 term neonates with PA was performed in tertiary level neonatal intensive care unit at Pediatric Clinic Sarajevo from June 2014 to June 2016. The severe PA was defined as 5. minute Apgar score < 3 and moderate PA as 5. minute Apgar score 4-6. Criteria adopted for ARF were serum creatinine > 1.5 mg/dl (> 133 micromol/L) on 3rd day of life or urine output < 0.5 ml/kg/hr for > 6 hrs beyond 24 hrs of life. Results. Out of 54 neonates with PA, 22 (40.74%) had ARF. Most of them (63.6%) had non-oliguric ARF with mean renal output of 2.2 ± 0.5 ml/kg/h. Eight neonates (36.4%) had oliguric ARF with mean renal output of 0.35 ± 0.6 ml/kg/h. Most of the neonates with oliguric ARF (63.4%) had severe PAwhile in those with non-oliguric ARF moderate PA was predominant. ARF was highest in the neonates with HIE III (85.71 %) (Figure 1). This showed that as HIE stage progressed, more renal dysfunction was seen in asphyxiated babies and this difference in incidence was found statistically significant (p < 0.05). Conclusions. Neonates with severe PA had more frequent ARF and the predominant type of renal involvement was non oliguric. Neonates with HIE stage II and III had significantly higher incidence of ARF.

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