Self-compacting concrete (SCC) contains fine mineral fillers such as limestone powder. The idea of this study was to partially replace limestone with waste sulfur since it is hydrophobic, insoluble in water and therefore chemically inert and to compare the properties of produced concrete samples. Fresh concrete proper­ties included: slump-flow, t500, V-funnel time, L-box ratio, segregation ratio, density, and entrained air content. Hardened concrete was tested for compressive, flexural and bond strengths, ultrasonic velocity, dynamic elas­ticity modulus, dynamic Poisson’s ratio, and microstructure. Flowability and segregation increased, while bulk density, compressive and flexural strength, dynamic elasticity modulus and ultrasonic velocity slight declined. Times t500 and V-funnel time, L-box ratio and entrained air changed insignificantly. Considering that all proper­ties should remain or improve in case of waste valorization and the criteria should set to satisfy requirements for SCC, this study proved that all mixtures can be used for structural applications.

Solar ultraviolet (UV) radiation is a significant health hazard in the warm part of the year. In order to assess the level of hazard and the effects of UV radiation on the living world, long-term measured or estimated data are needed. In Novi Sad, the measurement of UV radiation has been performed since 2003, while ozone measurements have been made since 2007. However, those data sets are too short for assessing long-term biological effects. Therefore, several techniques for reconstruction of UV radiation doses have been developed. Reconstruction techniques are based on using available ground-based measurements of the meteorological data and satellite measurements of the total ozone column. It is shown that techniques that use ozone data show better performance than those that use only ground-based meteorological measurements. However, the difference between the performances of the methods is smaller when it comes to the monthly values, indicating that the techniques which use only ground-based meteorological measurements are roughly as good as the ozone-based techniques for assessing long-term changes in the surface UV radiation. The statistically significant increasing long term-trend of annual mean erythemal UV doses ( ERY ) and the decreasing trend in the total ozone column in Novi Sad since 1981 have been noticed. An increase in ERY has been noticed in all the seasons except in autumn and it is the highest in winter. The analysis showed that the increase in the ERY in the period 1981–1996 was mainly caused by the total ozone column, while the increase after 1996 is largely caused by cloudiness.

Republic of Srpska (RS) covers an area of 24,666 km 2 or about 48.5% of Bosnia and Herzegovina’s territory. Spatial and environmental changes accelerated due to dynamic historical period upon the RS formation and the following development period. The extent of these changes can be determined by comparing satellite images obtained from different acquisition periods. By processing images, with the support of geographic information systems, it is possible to create a database that aims to analyze spatial processes in a specific area in order to determine quantitative and qualitative parameters. In this way, the trends of spatial development (e.g. excessive logging, land cover damage, water pollution, etc.) and potentially vulnerable components of the environment can be monitored. The data for Bosnia and Herzegovina were collected from CORINE Land Cover (CLC) database for 39 European countries. The CLC is a project launched by the European Environment Agency (EEA) more than thirty years ago with the aim of collecting, coordinating and ensuring the consistency of information on natural resources and the environment. The goal of the paper is to identify land cover types and determine environment changes in the territory of Republic of Srpska over the period 2000–2018 as a consequence of the land use conversion.

Background Health care professionals are exposed to the psychological and physiological effects of stress, which is a well-known risk factor for various mental and physical health problems. Objective The aims of this study were to assess the adherence of female health care workers to use a web-based tool for improving and modifying lifestyle and to identify the potential factors influencing their adherence. Methods A prospective, observational study was performed. A total of 80 female health care workers (physicians and gradated nurses) from 2 university medical centers and female members of a family medicine society participated. Participants completed a questionnaire that inquired about their basic demographic data and physical fitness. Physical fitness was assessed by the Rockport Fitness Walking Test. Adherence to a web-based application (24@life) was followed for 3 months and the number of log-ins into the application was counted. Results The study was conducted from March to October 2019. Significantly high workload has been detected in all groups (P<.05), except in the general practitioner with normal workload group. The graduated nurse working in the surgery room group showed chronic stress with elevated S-cortisol levels (>690 nmol/L); activated cellular immune system with elevated concentrations of lymphocytes (reference 1.1-2.5 × 109 cells/L), CD3 cells (reference 0.7-1.9 × 109 cells/L), CD8 cells (reference 0.2-0.7 × 109 cells/L), and HLA-DR/CD3 cells (reference 0.04-0.2 × 109 cells/L); and the worst quality of sleep (mean 2.8 [SD 1.2]). Only 32 of 80 participants (40%) were adherent to the web-based application. Participants most frequently viewed web pages on areas of physical activity (497 times) and nutrition (332 times). No factors or participant’s characteristics such as weight (odds ratio [OR] 1.026, 95% CI 0.977-1.078), BMI (OR 0.993, 95% CI 0.834-1.184), age (OR 0.970, 95% CI 0.910-1.034), or stress level (OR 0.997, 95% CI 0.995-1.000) were identified to affect the adherence rates. Conclusions Female health care workers exposed to high workload did not find the web-based application useful for improving and modifying their lifestyle. Therefore, other strategies that might help health care workers facing stress and improve their lifestyle should be identified.

This paper introduces a general approach to design a tailored solution to detect rare events in different industrial applications based on Internet of Things (IoT) networks and machine learning algorithms. We propose a general framework based on three layers (physical, data and decision) that defines the possible designing options so that the rare events/anomalies can be detected ultra-reliably. This general framework is then applied in a well-known benchmark scenario, namely Tennessee Eastman Process. We then analyze this benchmark under three threads related to data processes: acquisition, fusion and analytics. Our numerical results indicate that: (i) event-driven data acquisition can significantly decrease the number of samples while filtering measurement noise, (ii) mutual information data fusion method can significantly decrease the variable spaces and (iii) quantitative association rule mining method for data analytics is effective for the rare event detection, identification and diagnosis. These results indicates the benefits of an integrated solution that jointly considers the different levels of data processing following the proposed general three layer framework, including details of the communication network and computing platform to be employed.

A 10 years old boy, was sent from regional hospital. His symptoms started the day before he was hospitalized and represented as gastrointestinal bleeding, lower abdominal pain and four times vomiting, without fever. Ultrasound and X-ray of the abdomen were normal. Blood fi ndings showed: RBC 3,19, hemoglobin 0,95, hematocrit 0,27. During a physical examination abdomen was palpatory soft, with no presence of the pain. Digital rectal examination showed blood. A scintigraphy pathologic scan showed a focal lesion of the right hemi abdomen consistent with the Meckel’s diverticulum.Patient was treated byLaparoscopic-Assisted Transumbilical Extracorporeal Resection of the Meckel’s Diverticulum. Case Report

In the last decade, Indonesia has worked towards expanding access to higher education, but the enrolment of the poor remains negligible with the majority of students in the country’s leading public universities still coming from Indonesia’s wealthiest echelons. Concerned with the issue of equity and access, the government has formulated a new policy calling on all higher education institutions to ensure at least 20% of their newly admitted students are of a low socioeconomic status (SES). The principal challenge the government has faced is a discrepancy between its ambitious political agenda and the policy’s implementation affected by inadequate budgeting, lacking implementation mechanisms, and limited award allocations. This challenge raises a question of whether the Equity and Access Policy can be effectively implemented and, if so, under what conditions can such success be achieved. We thus examine the country’s Equity and Access Policy, education system with its leadership structure, broader institutional framework, and how these factors interact to obstruct the higher education access for the poor in Indonesia. The inadequate policy implementation can impede Indonesia’s human capital development and the country’s economic growth.

The aim of this study is to examine the effect of temperature extraction on the potassium (K) and calcium (Ca) contents in orange and lemon peel extracts. The extractions were done at 62 ºC and 92 °C for 15 minutes and atmospheric pressure in distilled water. The fruit peel content in the extraction mixture was 5 % (w/v) in all samples. Calcium (Ca) and potassium (K) concentrations have been determined by flame photometric method. This research has revealed that by increasing the temperature of extraction, in particular, the concentration of Ca and K concentrations increased as applied extraction temperatures increased. The concentration of potassium is higher than the concentration of calcium in orange and lemon extracts, respectively. The concentration of K was 308 mg/l at 62 ºC and 361 mg/l at 92 ºC in lemon extracts, while in orange extracts the concentration of K was 476 mg/l at 62 ºC and 483 mg/l at 92 ºC. The concentration of Ca was 70.8 mg/l at 62 ºC and 71.9 mg/l at 92 ºC in lemon extracts, while in orange extracts the concentration of Ca was 91 mg/l at 62 ºC and 93.6 mg/l at 92 ºC. These results confirm that both citrus could be a very valuable source of potassium and calcium which are needed micronutrients to ensure the water and electrolyte balance and to build and maintain strong bones, proper function of muscles and nerves.

The paper analyzes through different historical periods in Indonesia the political instrumentalization of three prophetic narratives based on the prophecies of the medieval Javanese king Jayabaya, and looks at the ways in which millenniarist organizations and political activists have used the myths of the Savior and the Golden Age to achieve their own goals. The form of prophetic narratives has proved extremely productive in the process of channeling dissatisfaction and mobilizing for the purpose of political activism, and their interpretation does not only yield a clearer picture of the complex political situation and historical events, but also, through the actions of influential individuals, it provides insight into a number of other aspects of local culture, such as the forming of religious syncretism, the division of power in society or the cultural perception of time. The paper seeks to show that these prophecies do not aim to foretell future events, but rather serve as a means of ensuring the legitimacy of individuals in political struggles in the present time.

We examine the relation between real interest rate volatility and aggregate fluctuations for a diverse sample of countries. Compiling a new dataset including emerging and advanced countries, the substantial variation in our data yields novel results: (a) stochastic volatility outperforms Markov&#8208;switching in representing interest rates, (b) some advanced economies can be more volatile than emerging markets, and (c) creditors take on more debt following volatility shocks. We show how an equilibrium business cycle model with uncertainty shocks can generate these facts. Sample heterogeneity produces significant parameter differences, playing an important role in distinguishing the effects of volatility shocks.

Large screen displays are omnipresent today as a part of infrastructure for presentations and entertainment. Also powerful smartphones with integrated camera(s) are ubiquitous. However, there are not many ways in which smartphones and screens can interact besides casting the video from a smartphone. In this paper, we present a novel idea that turns a smartphone into a direct virtual pointer on the screen using the phone's camera. The idea and its implementation are simple, robust, efficient and fun to use. Besides the mathematical concepts of the idea we accompany the paper with a small javascript project (this http URL) which demonstrates the possibility of the new interaction technique presented as a massive multiplayer game in the HTML5 framework.

Amyloid goiter is a very rare manifestation of amyloidosis. Here, we describe the case of a 40-year-old male, who presented with upper airway obstructive symptoms including hoarseness and breathing difficulty, to highlight the clinical and pathological features of secondary amyloidosis of the thyroid gland and the difficulties in making a preoperative diagnosis. The patient had previously been wounded in the war in Bosnia, which resulted in the right kidney being surgically removed. Further, he had undergone two surgical interventions on both hips due to osteomyelitis and was on a chronic dialysis program due to a progressively poor left kidney function that had eventually resulted in complete loss of renal function. Thyroid function tests were normal, and the patient clinically was euthyroid; biochemical investigations were within normal limits. Results from sonography, computed tomography scan of the neck, scintigraphy and fine-needle aspiration cytology were nondiagnostic. Therefore, a thyroid biopsy was carried out, and amyloid deposits were found. After preoperative work-up, total thyroidectomy was performed with no complications. We conclude that amyloid goiter may have no major impact on thyroid function even when a substantial amount of amyloid has replaced the normal thyroid parenchyma, as was the case in our patient. Amyloid goiter should be suspected in all patients with a progressive, rapidly growing bilateral thyroid enlargement with concomitant inflammatory processes or in patients undergoing hemodialysis treatment.