257 research outputs found

    A REVIEW OF REAL TIME SMART SYSTEMS DEVELOPED AT UNIVERSITY OF NIŠ

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    This paper presents the bibliographic review of smart systems implemented so far and their application. Also this paper is dedicated to new smart mobile system developed for monitoring microclimatic parameters. This system is primarily intended for monitoring real-time microclimatic parameters, such as air quality where the presence of carbon monoxide (CO) is monitored, as well as other microclimatic parameters. The mobile system which will be described in this manuscript can be installed in public transport (to obtain information on microclimatic parameters on a known route). Also, to obtain information on microclimatic parameters from a random route, it is possible to install the system in a taxi vehicle. This system provides the ability to generate a map using the data provided by the system based on GPS coordinates. The system is based on a group of embedded sensors, GPS module, PIC microcontroller as a core and server system, and wireless internet using Global System for Mobile Telecommunications (GSM) module with General Packet Radio Service (GPRS) as a communication protocol

    A SMART WEATHER STATION BASED ON SENSOR TECHNOLOGY

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    In this paper a new approach to utilize technology in a practical and meaningful manner within a smart weather station system is presented. This system is primary intended for use in agriculture and meteorological stations, but its application is not limited here. Weather parameters observing plays an important role in human live, so the observing, collecting and storing of information about the temporal dynamics of weather changes is very important. The primary goal is to design a low cost smart system for storing data obtained by measuring various physical parameters in the atmosphere without human involvement. Realized system use Internet of Things technology to storage measured results, and allows the user to access the results anytime and anywhere. In this research Internet of Things is used as technology for storing measured data, because this technology is an advanced and efficient solution for connecting the things to the Internet and to connect the entire world of things in a network. The proposed smart weather station system is based on the following steps: direct environment sensing, measuring and storing data and then allowing user to customize the settings. This research will present the design and implementation of a practical smart weather station system, which can be further extended. The system is based on: group of embedded sensors, Peripheral Interface Microcontroller (PIC) microcontroller as a core and server system and wireless internet using Global System for Mobile Telecommunications (GSM) module with General Packet Radio Service (GPRS) as a communication protocol

    Ulja biljnog porekla u ishrani ciprinidnih vrsta riba

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    Meso ciprinidnih vrsta riba predstavlja značajan izvor proteina, masti, vitamina i minerala u ishrani ljudi. Masti ovih ribljih vrsta su bogate nezasićenim masnim kiselinama (USFA), kako mononezasićenom (MUFA), tako i polinezasićenim (PUFA) masnim kiselinama. Navedene grupe masnih kiselina imaju mnogobrojne povoljne efekte na održavanje fizioloških procesa u organizmu, pa samim tim i na očuvanje zdravlja ljudi. Hemijski sastav mesa ciprinidnih vrsta riba, kao i masnokisleinski sastav istog su pod uticajem brojnih faktora, među kojima je ishrana jedan od najznačajnijih. Glavni izvor masti u hrani za ribe je dugo bilo riblje ulje, ali je zbog drastičnog povećanja proizvodnje ribe iz akvakulture, njegova dalja upotreba u istoj meri postala neodrživa. U zavisnosti od vrste ribe, kao izvor masti se sve više koriste ulja biljnog porekla, kao delimična ili potpuna zamena za riblje ulje u kompletnoj hrani za ribe. Ovaj alternativni izvor masti može imati i negativnih efekata na ribe iz akvakulture, pre svega jer su ulja biljnog porekla siromašna ili su potpuno bez n-3 visoko nezasićenih masnih kiselina (n-3 HUFA), dok je riblje ulje poznato kao jako dobar izvor pomenutih masnih kiselina. Ovaj problem je slabije izražen kod ciprinidnih vrsta riba, koje su omnivori ili herbivori i prema rezultatima dosadašnjih istraživanja imaju veće potrebe za n-6 nego za n-3 masnim kiselinama za optimalan rast i održavanje bitnih fizioloških funkcija. Biljna ulja koje se najčešće koriste u ishrani riba su sojino, laneno, ulje uljane repice, suncokretovo, palmino i druga ulja. Upotrebljavaju se u komercijalnim smešama za ishranu ciprinidnih vrsta riba, bez negativnog uticaja na proizvodne parametre, ali mogu nepovoljno uticati na masnokiselinski sastav mesa ovako hranjenih riba. Međutim, najveći broj istraživanja o zameni ribljeg ulja uljima biljnog porekla je izveden na salmonidnim vrstama riba, pa su poželjna dalja ispitivanja o uticaju različitih vrsta ulja biljnog porekla na hemijski i masnokiselinski sastav mesa, kao i na zdravstveno stanje ciprinida. Meso cipirinidnih vrsta je uglavnom pogodnog hemijskog i masnokiselinskog sastava i predstavlja važnu komponentu u zdravoj ishrani ljudi. Sve navedeno ukazuje na neophodnost istraživanja o daljem unapređenju kvaliteta mesa ciprinidnih vrsta riba upotrebom kompletnih smeša, kako bi se zadovoljile nutritivne potrebe ovih vrsta, povećala proizvodnja po jedinici površine, dobila riba kao finalni proizvod što boljeg kvaliteta i postigla dugoročna ekonomska održivost i zadovoljile potrebe potrošača. Pored toga, potrebno je kontinuirano vršiti promociju ribe gajene na ribnjacima Srbije kao nacionalog zdravog proizvoda poželjnog u svakodnevnoj ishrani ljudi

    Primena ribarskih tehnologija u održivom razvoju klaničnih sistema

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    Primenom ribarskih tehnologija i sistema za prečišćavanje se na bezbedan, proveren i renomiran način uklanja otpad iz klanične industrije vodeći računa o zaštiti životne sredine. Sa otpadom dobijenim iz klanične industrije se postupa na način koji aktivno doprinosi ekonomskim, socijalnim i ekološkim cilјevima održivog razvoja. Sam spoj klanične industrije i ribarskih tehnika predstvalјa novinu kako u svetu tako i kod nas (Ćirković, 2014). Upravlјanje otpadom je jedan od najsloženijih problema u sistemu upravlјanja zaštitom životne sredine. Uzimajući u obzir prirodu sirovina i nastalih proizvoda, otpadne vode koje su nastale u toku proizvodnje i prerade prehrambenih proizvoda imaju po prirodi biorazgradivi karakter. Imajući u vidu da je štednja vode korisna, a prečišćavanje otpadnih voda zakonska obaveza trebalo bi imati na umu da će vode biti sve manje, da će voda biti sve skuplјa i da se mora štedeti jer se dva puta plaća - prvi put kada se dovodi u pogon i drugi put kada se kao zagađena mora prečistiti. Činjenica da smo evropska i podunavska zemlјa obavezuje nas da se u pogledu zaštite životne sredine ponašamo u istoj meri u kojoj su se obavezale i ostale evropske zemlјe. Zahtevi EU podrazumevaju maksimalno smanjenje zagađenja svih vrsta koje se postiže izborom tehnologija koje proizvode manja zagađenja, kao i efikasnijim korišćenjem sistema za tretman produkovanih zagađenja. Prečišćavanje industrijskih otpadnih voda je trenutno apsolutno neophodno. Izlazna otpadna voda iz industrijskih pogona može imati veliki uticaj na kvalitet podzemnih voda i vodenih tokova. Iz tog razloga povećava se broj institucija i industrijskih kompanija koje odgovorno vode računa o ovom problemu. Sve klanične industrije su obavezne da na bezbedan način izvrše prečišćavanje klanične vode pre puštanja u prirodne recipijente ili kanalizaciju uz obavezno plaćanje nadoknade za ispuštene otpadne vode koja je regulisana zakonom. Primena ove ideje je neophodna jer je ugrožavanje životne sredine jednosmerni problem današnjice, a i problem našeg ulaska u Evropsku zajednicu. Pored toga, nije zanemarlјiv ni ekonomski benefit. Naše rešenje uklanja problem otpadnih voda iz klanične industrije, a izgradnjom ribnjaka u sklopu klanice se omogućava proizvodnja ribe u prečišćenoj vodi poreklom iz klanične industrije uz dodatak vode iz bunara. Sam spoj klanične industrije i ribarskih tehnika predstvalјa novinu kako u svetu tako i kod nas. Tokom naših ogleda ukazali smo na: održivost klanične industrije korišćenjem ribarskih tehnologija i ekološko rešenje problema otpadnih voda, ribu kao bioindikatora zagađenja životne sredine i kontrole uspešnosti prečišćavanja otpadnih voda klanične industrije; prevođenje dela organskih materija putem prirodne hrane u meso ribe; uravnoteženje i zadovolјavajući kvalitet vode na završetku procesa prečišćavanja, s obzirom da kvalitetna voda danas predstavlјa nedostajući resurs; konstantan uvid u zdravstveno stanje riba; proizvodnju ribe kao kvalitetne namirnice sa aspekta mikrobiologije i nutritivne vrednosti riblјeg mesa; korišćenje vode u zalivnom sistemu ribnjaka kao zaokruženog procesa od otpadne vode do vode zadovolјavajućeg kvaliteta za ratarske kulture; sistemi za energetsku održivost: drvenasti ostatak bilјnih kultura se loži u energani klanice sa kostima koje su neiskorišćene u mesarskoj industriji čime se postiže veća energetska efikasnost

    Hypercalcemic type of small cell carcinoma of the ovary

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    © 2015, Institut za Vojnomedicinske Naucne Informacije/Documentaciju. All rights reserved. Introduction. Extrapulmonary small cell carcinoma is a rare, prognostically bad tumor category. Primary, it can be localized in every organ, even in the ovary, where, due to its clinical specifici-ties, it represents a challenge in diagnosis, as well as in therapy. Small cell ovarian carcinoma (SCOC) is biologically very aggres-sive malignant tumor of unknown histogenesis. We presented a rare case of SCOC with hypercalcemia of aggressive course and fatal outcome in a postmenopausal woman at International Fed-eration of Gynecology and Obstetrics (FIGO) Ia stage. Case re-port. A 60-year-old woman, Caucasian, came to the doctor be-cause of discomfort in the lower abdomen and pain of greater in-tensity in last few days. Ultrasound examination and CT scan of the abdomen confirmed the presence of large adnexal masses of cystic-solid appearance with the largest diameter of 13 cm, regu-lar structure of the other gynecological organs, without verifying the existence of metastatic deposits. All the results of laboratory analysis gave normal values, except for calcium, which was ele-vated. Explorative laparotomy with complete hysterectomy, bi-lateral salpingo-oophorectomy, dissection of lymph nodes and omentectomy were conducted. Based on pathohistological analy-sis of the operative material, SCOC at FIGO Ia stage was diag-nosed. No complications were observed in a postsurgery period and after 10 days the patient was discharged in a good condition and with normal calcemia. The treatment was continued with concurrent radiotherapy and chemotherapy. However, in spite of overall treatment, the disease progressed, and the patient died of disseminated metastatic disease, 26 months after the diagnosis. Conclusion. Small cell carcinoma localized in the ovary is gener-ally a tumor category with bad prognosis depending on the stage of the disease

    Gender Dysphoria: Bioethical Aspects of Medical Treatment

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    Gender affirmation surgery remains one of the greatest challenges in transgender medicine. In recent years, there have been continuous discussions on bioethical aspects in the treatment of persons with gender dysphoria. Gender reassignment is a difficult process, including not only hormonal treatment with possible surgery but also social discrimination and stigma. There is a great variety between countries in specified tasks involved in gender reassignment, and a complex combination of medical treatment and legal paperwork is required in most cases. The most frequent bioethical questions in transgender medicine pertain to the optimal treatment of adolescents, sterilization as a requirement for legal recognition, role of fertility and parenthood, and regret after gender reassignment. We review the recent literature with respect to any new information on bioethical aspects related to medical treatment of people with gender dysphoria

    Nickel as a potential disruptor of thyroid function: benchmark modelling of human data

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    IntroductionNickel (Ni) is one of the well-known toxic metals found in the environment. However, its influence on thyroid function is not explored enough. Hence, the aim of this study was to analyse the potential of Ni to disrupt thyroid function by exploring the relationship between blood Ni concentration and serum hormone levels (TSH, T4, T3, fT4 and fT3), as well as the parameters of thyroid homeostasis (SPINA-GT and SPINA-GD) by using correlation analysis and Benchmark (BMD) concept.MethodsNi concentration was measured by ICP-MS method, while CLIA was used for serum hormone determination. SPINA Thyr software was used to calculate SPINA-GT and SPINA-GD parameters. BMD analysis was performed by PROAST software (70.1). The limitations of this study are the small sample size and the uneven distribution of healthy and unhealthy subjects, limited confounding factors, as well as the age of the subjects that could have influenced the obtained results.Results and discussionThe highest median value for blood Ni concentration was observed for the male population and amounted 8,278 µg/L. Accordingly, the statistically significant correlation was observed only in the male population, for Ni-fT4 and Ni-SPINA-GT pairs. The existence of a dose-response relationship was established between Ni and all the measured parameters of thyroid functions in entire population and in both sexes. However, the narrowest BMD intervals were obtained only in men, for Ni - SPINA-GT pair (1.36-60.9 µg/L) and Ni - fT3 pair (0.397-66.8 µg/L), indicating that even 78.68 and 83.25% of men in our study might be in 10% higher risk of Ni-induced SPINA-GT and fT3 alterations, respectively. Due to the relationship established between Ni and the SPINA-GT parameter, it can be concluded that Ni has an influence on the secretory function of the thyroid gland in men. Although the further research is required, these findings suggest possible role of Ni in thyroid function disturbances

    Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation

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    One of the ways in which legal services are financed, and indeed shaped, is through private insurance arrangement. Two contrasting types of legal expenses insurance contracts (LEI) seem to dominate in Europe: before the event (BTE) and after the event (ATE) legal expenses insurance. Notwithstanding institutional differences between different legal systems, BTE and ATE insurance arrangements may be instrumental if government policy is geared towards strengthening a market-oriented system of financing access to justice for individuals and business. At the same time, emphasizing the role of a private industry as a keeper of the gates to justice raises issues of accountability and transparency, not readily reconcilable with demands of competition. Moreover, multiple actors (clients, lawyers, courts, insurers) are involved, causing behavioural dynamics which are not easily predicted or influenced. Against this background, this paper looks into BTE and ATE arrangements by analysing the particularities of BTE and ATE arrangements currently available in some European jurisdictions and by painting a picture of their respective markets and legal contexts. This allows for some reflection on the performance of BTE and ATE providers as both financiers and keepers. Two issues emerge from the analysis that are worthy of some further reflection. Firstly, there is the problematic long-term sustainability of some ATE products. Secondly, the challenges faced by policymakers that would like to nudge consumers into voluntarily taking out BTE LEI

    Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

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    This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good

    Search for stop and higgsino production using diphoton Higgs boson decays

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    Results are presented of a search for a "natural" supersymmetry scenario with gauge mediated symmetry breaking. It is assumed that only the supersymmetric partners of the top-quark (stop) and the Higgs boson (higgsino) are accessible. Events are examined in which there are two photons forming a Higgs boson candidate, and at least two b-quark jets. In 19.7 inverse femtobarns of proton-proton collision data at sqrt(s) = 8 TeV, recorded in the CMS experiment, no evidence of a signal is found and lower limits at the 95% confidence level are set, excluding the stop mass below 360 to 410 GeV, depending on the higgsino mass
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