Incorporation of Defined Quality Attributes into Solutions Based on Service-Oriented Architecture

The shift of the Service-Oriented Architecture (SOA) to the\ud Information Technology, its use and implementation enables the feature of having more robust system offered to the Service Industry. This paper will present enhancement efforts to software platform solution with including quality\ud attributes and will describe the design of the Quality Service-Oriented Architecture. A well known branch of the service industry market in the US is the Pest Control Services which should be part of every single physical object in the USA. There are many Service-Oriented Platforms that handle the Pest Control Industry and our target in this article will be to describe a Quality Oriented and Service-Oriented Design for the Pest Control Industry, which will meet the criteria and the needs of the industry as well to meet all laws requirements to each\ud US state related to the pest control policies and rules. Most important is that the presented software platform provides competitive edge

Characterization and hydrogen evolution on Pt/nanoplatelets

Finding suitable catalysts for hydrogen evolution reaction (HER) is key for economic production of hydrogen for use in fuel cells. Reducing the amount of expensive noble metals that are used is one of the ways for obtaining such catalysts. Various combinations of different noble metals and various carbon supports have been studied. In this work nanoplatelets (GNP) was used as a support and on it Pt nanoparticles were electrochemically deposited in sub monolayer nanoislands. Obtained Pt/GNP electrode was characterized by X ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) while its electrocatalytic activity was investigated by cyclic voltammetry (CV), linear sweep voltammetry (LSV) and chronoamperometry . XPS analysis showed that the atomic percentages of Pt in Pt/GNP was 1.3% for electhrochemical deposition and 0.3% for spontaneous deposition, respectively. SEM micrographs of Pt/GNP electrode surface showed that Pt nanoparticles occupy mostly the edges GNP support, while elemental maping confirms the distribution of Pt, C and O over the surface of the electrode. Pt/GNP electrode has shown remarkably good performance for HER reaction in 0.5 M H2SO4 acid solution. Outstanding HER activity was achieved, showing the initial potential close to the equilibrium potential for HER and of -0.003 V and a low Tafel slope of about -30 mV/dec. The chronoamperometric measurement performed over 180 min for hydrogen evolution at the constant potential indicates good stability and durability.Twenty-First Young Researchers’ Conference - Materials Science and Engineering: Program and the Book of Abstracts; November 29 – December 1, 2023, Belgrade, Serbi

Fenologija crvenoglavog buvača (Psylliodes chrysocephala L.) u uljanoj repici

The cabbage stem flea beetle (Psylliodeschrysocephala (L.) is an important pest of winter oilseed rape in Serbia. Beetles colonize oilseed rape in early October and are active in the field until first frost and wintertime. In autumn, adults can be seen laying eggs in the soil around plants. Larvae of P. chrysocephala developed intensively on leaf petioles in November, reaching their highest numbers at the end of the month. No infested plants were found in a conventional field, while 14.5% of all dissected leaf petioles were infested on an integrated field. On unprotected plants in an organic field, 76.0% of the plants were infested with larvae at the growth-stage BBCH 18-19, with 31.1% infested leaves on average. As a results, the number of plants was reduced by 51%, i.e. from 43.0/m2 recorded in the autumn to 22.0/m2 in the following spring. A new generation of P. chrysocephala beetles emerged from the soil in the first half of June and rapidly escaped the fields from almost dry plants. Our results showed that a part of the population stayed in aestivation and emerged in the following crop during the next season. On the following 5 March, 0.5 beetles/m2 were found in emergence cages in the organic field, while 0.81 beetles/m2 were found in the former trap crop.Crvenoglavi buvač (Psylliodes chrysocephala (L.) je važna štetočina ozime uljane repice u Srbiji. Naseljava uljanu repicu početkom oktobra i aktivan je u polju sve do pojave mraza i zime. Tokom jeseni adulti se mogu videti kako polažu jaja u zemljište u blizini biljaka. Larve P. chrysocephala se tokom novembra intenzivno razvijaju u lisnim peteljkama i najviše ih ima krajem ovog meseca. Na netretiranim biljkama disekcijom je utvrdjeno 76.0 % napadnutih biljaka sa u proseku 31.1 % napadnutih listova u razvojnom stadijumu BBCH 18-19. Rezultat ovolikog napada je bilo smanjenje broja biljaka za 51%, od 43,0/m2 koliko ih je bilo u jesen na 22,0/m2 u proleće naredne godine. Nova generacija adulta P. chrysocephala izleće iz zemljišta tokom prve polovine juna i brzo napušta polje sa skoro suvim biljkama uljane repice. Naši rezultati su pokazali da deo populacije ostaje u dijapauzi i eklodira u narednom usevu tokom proleća naredne godine. Mi smo u fotoeklektor kavezima, koji su ostavljeni u polju i tokom naredne godine, 5. marta 2012. u organskom polju registrovali 0.5 imaga/m2, dok je u lovnom pojasu zabeleženo 0.81 imaga/m2

In vitro testing of genotoxic and apoptotic potential of two synthesized nanomaterials by DNA fragmentation assay

Nanomaterials represent a relatively new and developing class of materials that are widely used because of their unique mechanical and physiochemical properties. Due to the particles’ size and the ability to easily enter the cells and interact with different cellular components, nanoparticles can exhibit toxic effects in biological systems, so it is necessary to conduct a thorough in vitro biocompatibility testing. Our aim was to examine the in vitro genotoxic and apoptotic potential of two different synthesized nanomaterials intended for bone tissue engineering and regenerative applications: biphasic calcium phosphate coated with poly- D,L-lactide-co-glycolide (CP/PLGA) and cobalt-substituted hydroxyapatite (CoHAp), by DNA fragmentation assay. NB4 cells (acute promyelocytic leukemia cell line) were incubated with different concentrations of CP/PLGA and CoHAp nanomaterials for 24 hours. Cells cultured in standard medium, without nanomaterials, were used as negative control and cells treated with hydrogen peroxide were used as positive control. After incubation with materials the genomic DNA was extracted from the cells and applied on horizontal agarose gel electrophoresis. The results of DNA fragmentation assay were observed on gel documentation system. Higher examined concentrations of CP/PLGA caused DNA fragmentation at some extent with DNA laddering at approximately 180 bp which is characteristic for later stages of apoptosis, while DNA laddering was not seen in the case of CoHAp at the same concentrations. Although both materials are in the form of nanoparticles, a different effect in apoptotic DNA fragmentation was observed which suggests that the chemical composition of nanomaterials notably affects the genotoxicity and apoptosis potential in addition to the particle size

The Effects of Massage Therapy on Sport and Exercise Performance: A Systematic Review

© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/4.0/).Background: A massage is a tool that is frequently used in sports and exercise in general for recovery and increased performance. In this review paper, we aimed to search and systemize current literature findings relating to massages’ effects on sports and exercise performance concerning its effects on motor abilities and neurophysiological and psychological mechanisms. Methods: The review has been written following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analysis) guidelines. One hundred and fourteen articles were included in this review. Results: The data revealed that massages, in general, do not affect motor abilities, except flexibility. However, several studies demonstrated that positive muscle force and strength changed 48 h after the massage was given. Concerning neurophysiological parameters, the massage did not change blood lactate clearance, muscle blood flow, muscle temperature, or activation. However, many studies indicate pain reduction and delayed onset muscle soreness, which are probably correlated with the reduction of the level of creatine kinase enzyme and psychological mechanisms. In addition, the massage treatment led to a decrease in depression, stress, anxiety, and the perception of fatigue and an increase in mood, relaxation, and the perception of recovery. Conclusion: The direct usage of massages just for gaining results in sport and exercise performance seems questionable. However, it is indirectly connected to performance as an important tool when an athlete should stay focused and relaxed during competition or training and recover after them.Peer reviewe

Fenologija i suzbijanje stablovnih rilaša (Ceutorhynchus napi gyllenhal i Ceutorhynchus pallidactylus Marsham) u uljanoj repici na severu Srbije

Stem weevils (Ceutorhynchus pallidactylus and Ceutorhynchus napi) are significant pests of oilseed rape that farmers regularly suppress by insecticide treatments intended against Brassicogethes aeneus. Recent studies have shown that in some regions of northern Serbia C. napi is dominant, while C. pallidactylus prevails in others. Increased damage from stem weevils has elicited an exploration of the situation and a study of their phenology and effects of insecticides in three differently managed fields: conventional, organic and integrated. New findings regarding the phenology of stem weevils show that both species were sporadically present in our experimental oilseed rape fields as early as during autumn (from the end of October 2010, BBCH 17-18). The main period of stem weevil settlement is the end of winter and early spring. Maximum flight of both weevil species was recorded on March 23 at the beginning of oilseed rape (OSR) stem elongation (BBCH 22-25), and one week later in the organic field. There were no significant differences in the number of settled weevils among the three differently managed fields. The insecticide treatment against C. napi was applied two weeks earlier than the usual treatment against B. aeneus and C. pallidactylus. Thus, it is clear that insecticide treatment directed against B. aeneus and C. pallidactylus is not effective against C. napi. In this way, such a practice can contribute to an increase in OSR damage, and density of the next generation of C. napi. A new generation of C. pallidactylus emerged from OSR fields in June 2011, while the majority of C. napi emerged in March of the following year.Ceutorhynchus pallidactylus i Ceutorhynchus napi su značajne štetočine uljane repice koje farmeri redovnu suzbijaju insekticidnim tretmanom protiv Brassicogethes aeneus. Nedavne studije su pokazale da u nekim regionima na severu Srbije dominira C. napi, a u drugim regionima C. pallidactylus. Povećane štete od stablovih rilaša ukazale su na potrebu praćenja njihove fenologije, efekata insekticida i uticaj agrotehnike. Utvrđeno je po prvi put da je pojava ovih insekata (C. napi i C. pallidactylus) na poljima uljane repice već tokom jeseni, od kraja oktobra 2010 (BBCH 17-18). Glavni period kada oni naseljavaju uljanu repicu je tokom kraja zime i na početku proleća. Maksimalni let je zabeležen 23. marta, u vreme izduživanja stabla uljane repice (BBCH 22-25). U odnosu na primenjenu agrotehniku nije bilo značajnih razlika u broju insekata koji su doletali. Registrovan broj doletelih imaga C. napi bio je 2,7 puta veći nego C. pallidactylus. U skladu sa tim, insekticidni tretman je bio 25. marta 2011. Posledica dominacije C. napi je potreba za primenom insekticida oko 2 nedelje ranije u odnosu na termin kada se suzbijaju B. aeneus i C. pallidactilus. Stoga je jasno da konvencionalna jednokratna primena insekticida za suzbijanje B. aeneus nije efikasna protiv C. napi i da takva praksa doprinosi tako velikim razlikama u brojnosti ova dva rilaša. Nova generacija C. pallidactylus izleće već tokom juna meseca iz zemljišta sa uljanom repicom (BCH 76-88) dok glavnina imaga C. napi izleće naredne godine u martu mesecu

Ulaganje u obrazovanje preduzetnika i primena merodavnog prava

The paper tackles the issues related to the quality of entrepreneurs’ knowledge, ways of ensuring continuing quality knowledge relating to founding and managing a business and its taxation. Such knowledge needs to be considered within the context of the established legal system that regulates business management, with respect to those rules that govern international flows of goods, capital and people, as well as with respect to the existing economic policies. Continuing quality knowledge is an absolute must especially when experienced business people intend to set up a new business in a new field or when they intend to penetrate new markets. Knowledge and skills provided for those people need to be based on national and international rules alike.The list of the elements that affect the development of entrepreneurship includes the following: tax fees, tax relief and exemption, stability of the legal system, execution of judicial decisions, independent flows of financial transactions and stable environment. In particular situations the importance of knowledge related to the elements listed is paramount. Therefore, continuing improvement of entrepreneurs’ knowledge is a worthy societal aim. The programs that provide such knowledge should gain public recognition and should be offered to general public owing to the fact that improving entrepreneurs’ quality knowledge affects the development of the society in general.U radu se razmatraju pitanja vezana za obrazovanje i kvalitet znanja preduzetnika s posebnim osvrtom na kontinuirano inoviranje i održavanje stečenih znanja na visokom nivou. Veliki uticaj na razvoj preduzetništva imaju: visina poreskih obaveza, mogućnost olakšica i oslobođenja, stabilnost pravnog okvira, izvršenje sudskih rešenja, neometani tokovi finansijskih transakcija, kao i stabilnost okruženja. Zbog toga je ulaganje u obrazovanje ljudi uopšte, podizanje i stalno unapređivanje njihovih znanja visoko opravdan društveni cilj. Programi koji doprinose ostvarenju tog cilja treba da dobiju javnu podršku i tretman javnog dobra, budući da održavanje visokog kvaliteta znanja preduzetnika doprinosi, pored ostalog, i ukupnom razvoju društva