If we keep in mind that we live in an age marked by digitalization, industry 5.0, as well as the accelerated population growth in urban regions, it is easy to conclude that the concept of smart cities is a very relevant topic for research. The aim of this paper is to examine whether and to what extent the concept of smart cities has been implemented in the city administration in the countries of the Western Balkans. For that purpose, a research was conducted, which includes surveying employed in various administrations in the following cities: Belgrade, Nis, Kragujevac, Trebinje, Podgorica, Herceg Novi, City of Skopje. The data indicate the fact that the respondents from Belgrade, Trebinje and Herceg Novi have the most knowledge and the most transparent insight into the data concerning smart city projects, while the respondents from Podgorica are the least knowledgeable about the entire issue. The general conclusion is that, although there are examples of cities with very positive progress in the field of implementation of smart city development strategies, there are still numerous problems in the implementation of projects in the countries of the Western Balkans.
The concept of creating smart infrastructure, as well as the use of available resources and potentials leads to the idea of creating smart cities. The development of this concept implies the implementation of development trends related to life in the cities of the Western Balkans, but also the development of unique solutions that will assimilate development trends and enable their availability and use by citizens living in the city, which is the basic hypothesis of this research. The subject of this paper includes data collection through a survey of employees in various city administrations in Belgrade,
The main purpose of the solar photovoltaic power plant (SPVPP), with installed power of 500 kW on the roof of the factory GRUNER Serbian Ltd in Vlasotince, is to electrical supply of consumers in the factory. Considering the geometric dimensions of the roof and the daily and monthly profiles of electricity consumption in the factory, at the beginning of 2021, SPVPP was designed. In this way It is achieves parallel operation with the electricity distribution network, with the possibility of delivering surplus electrical energy. SPVPP was performed by the company CONSEKO Ltd., Belgrade in the period 15.0715.10.2021 and was put into trial operation at the end of September 2021, and the use permit of the plant for operation was issued on 30.12.2021. Since that date, SPVPP has been officially in exploitation operation. The GRUNER factory is on March 30, 2022 concluded with JP EPS, Branch "EPS Snabdevanje" concluded a contract for full supply of electricity for the period 01.04.2022 to 31.12.2023. The paper presents some key experiences from the construction and operation of PVPP, which could be interesting for both designers and implementers. The realization of PVPP has made a certain contribution to the promotion of renewable energy sources and the use of "green" energy in the territory of the Republic of Serbia.
The long non-coding RNA (lncRNA) GAS5 can be a marker for early diagnosis and postoperative follow-up in the patients with prostate cancer, whereby lower levels of GAS5 correlate with tumorigenesis and unfavourable clinical course. Expression of the GAS5 can be affected by rs145204276 polymorphism, a 5 base pairs insertion-deletion polymorphism shown as ?AGGCA/-?. The aim of this study was to analyse the association between rs145204276 and prostate cancer susceptibility and prognosis. This study was included 121 healthy subjects and 70 patients with prostate cancer. Diagnosis of prostate cancer was established by histopathology after the surgery. Genotyping was performed by allelic discrimination method using the TaqMan? assay. In the healthy subjects, the obtained frequencies of GAS5 rs145204276 genotypes were 80.2% of ins/ins, 16.5% of ins/del and 3.3% of del/del. The allele frequencies were 88.5% of ins and 11.5% of del, respectively. In the patient group, the frequencies of ins/ins, ins/del and del/del genotypes were 70%, 20% and 10%, respectively; the frequency of ins allele was 80% and the frequency of del allele was 20%. Observed frequencies of GAS5 rs145204276 genotypes were not significantly different between healthy subjects and patients with prostate cancer, and also between prognostic groups of prostate cancer. This study demonstrate no significant association between GAS5 rs145204276 and sussceptibility/prognosis of prostate cancer.
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