50 research outputs found
VinÄa-Belo Brdo, a late neolithic site in Serbia consideration of the macro-botanical remains as indicators of dietary habits
The analysis of macro-botanical remains from the late Neolithic site of VinÄa-Belo Brdo has provided first information on the range of crops and wild plants present at the site, and revealed their potential role as foodstuffs. The abundance and distribution of certain plant taxa across different archaeological deposits suggests to what extent they were used within the settlement. The analyzed plant remains also offer insight into the types of food consumed by VinÄa residents and serve as a basis for inferring the seasonality and method of food provision/production and activities related to plant use. [Projekat Ministarstva nauke Republike Srbije, br. 177012: Society, spiritual and material culture and communications in prehistory and early history of the Balkans
Archaeology for all: Overview of public outreach within the 'VinÄa project', Serbia
ArheoloÅ”ko nalaziÅ”te Belo brdo u VinÄi iskopavano je u nekoliko serija terenskih kampanja. Pre inicijalnih istraživanja, lokalitet, odnosno njegov arheoloÅ”ki sadržaj bili su manje-viÅ”e poznati samo žiteljima sela, odnosno predgraÄa VinÄa. Prva istraživanja odigrala su se poÄetkom 20. veka i proslavila su lokalitet. Ti najraniji radovi na terenu i spektakularna otkriÄa privukli su pažnju lokalnih i inostranih Äasopisa onog vremena i zahvaljujuÄi tome Å”iroka publika je mogla da dobije prvi uvid u arheologiju VinÄe te prepozna znaÄaj ovog nalaziÅ”ta. ArheoloÅ”kom timu su se tada prikljuÄili pojedinci izvan struke, a njihov angažman bio je kljuÄan za obezbeÄivanje finansijskih sredstava za istraživanje, pre svega onih iz inostranih izvora. Uprkos tome Å”to je, s jedne strane, važnost lokaliteta isticana u javnosti, a s druge - uoÄena Å”teta koju su nalaziÅ”tu nanosili reka Dunav i Å”irenje savremenog naselja na areal lokaliteta, nikakav trud nije uložen u fiziÄku i pravnu zaÅ”titu ovog arheoloÅ”kog nasleÄa. Istraživanja u drugoj polovini 20. veka odvijala su se u uslovima pojaÄanog interesovanja za arheologiju, te su imala primetno veÄi publicitet. To je bila glavna prednost, koja je omoguÄila da se Å”ira javnost edukuje u pogledu karakteristika i naÄina života u praistorijskom naselju u VinÄi, a istovremeno i da se istaknu uloga i relevantnost arheoloÅ”kog istraživaÄkog rada. TadaÅ”nji istraživaÄi VinÄe bili su svesni potrebe (i prednosti) približavanja lokaliteta i nauÄnog rada razliÄitoj publici. ZahvaljujuÄi njihovom zalaganju na ovom planu, nalaziÅ”te je proglaÅ”eno za kulturno dobro od nacionalnog interesa i stavljeno pod pravnu zaÅ”titu. U 21. veku, arheolozi-istraživaÄi VinÄe su uložili znatnu koliÄinu energije u javnu prezentaciju i promociju nalaziÅ”ta i nauÄnog rada. Osnovni cilj bio je da se oprobaju nove metode popularizacije arheoloÅ”kih nalaziÅ”ta i rezultata, a da se pritom javnost ukljuÄi u arheologiju preko neposredne komunikacije sa arheolozima i kroz zajedniÄke aktivnosti. Na osnovu prisustva ili odsustva interakcije sa publikom, i njenog oblika, primenjeni pristupi prezentaciji nauÄnog rada na VinÄi mogu se svrstati u nekoliko kategorija: indirektan pristup (izložbe fotografija u realnom i virtuelnom okruženju), direktan (uobiÄajene galerijske izložbe, predavanja za Å”iru publiku), interaktivan (podrazumeva neposredan kontakt izmeÄu publike i arheologa ili publike i arheoloÅ”kih nalaza) i praktiÄan (aktivnosti i radionice za decu). Dobar deo ovih poduhvata iziskivao je veliku energiju i upornost, ali su rezultati bili nadasve ohrabrujuÄi i inspirisali su dalji trud. ZamiÅ”ljene aktivnosti izuzetno dobro je prihvatila nenauÄna publika, koja je bila veoma raznovrsna u pogledu starosnog doba, interesovanja, profesije, finansijskog i druÅ”tvenog statusa. Ako se imaju u vidu sve ÄeÅ”Äe pogreÅ”ne i zlonamerne interpretacije nalaziÅ”ta u VinÄi, kljuÄni su i krajnje relevantni napori arheologa da dopru do najÅ”ire moguÄe publike, te da je ukljuÄe u promotivne aktivnosti i na taj naÄin edukuju. Ovaj aspekt shvatamo kao neophodan i integralan deo arheoloÅ”kog rada na VinÄi i smatramo da upravo arheolozi nose odgovornost za izgradnju odgovarajuÄe i nauÄno zasnovane slike o arheoloÅ”kim otkriÄima i njihovom znaÄaju. Fokus u buduÄnosti treba da bude na udruživanju snaga sa lokalnom zajednicom u pogledu planiranja i realizacije promotivnih aktivnosti, kao i na uspostavljanju partnerstva i saradnje sa drugim zainteresovanim stranama.Science outreach has increasingly been recognised as a method of promoting research institutions, areas, process, results, and of contributing to the awareness and education of the public. This paper describes many different ways - some unconventional and highly imaginative - in which the archaeologists working at the site of VinÄa in Serbia presented and promoted their work to the widest possible audience. The activities are provisionally placed into categories: indirect, direct, interactive and hands-on, indicating the route by which the information was conveyed to the public, but also reflecting the nature of the public response. The likely most effective, and certainly most enriching, were the outreach actions envisaged as a two-way process, enabling the flow of information between the presenters and the audience. Some new venues in publicising the research also were tested, through joint work of archaeologists and non-archaeologists. That engaging interested public in archaeology can bring practical benefits, which can be essential, was demonstrated already in the early 20th century-excavations at VinÄa, when funding for the research was secured thanks to non-archaeologists on the team. Over the years, this practice has underpinned the efforts aimed at preserving and communicating the VinÄa heritage. It might also be a domain in which a joint effort towards the site protection is possible of the opposed specialist and non-specialist voices interpreting the archaeology of VinÄa
Developing a quality management tool for preparing Good Distribution Practice audit of pharmaceutical contract vaccine distributor
Outsourcing is increasingly used by the vaccine manufacturers. When the manufacturing activities are outsourced, the contract manufacturer's Good Manufacturing Practice compliance needs to be confirmed through auditing. In the same way, when distribution is outsourced, the contract distributor's Good Distribution Practice compliance needs to be confirmed through auditing. The objective of this study was to develop an audit preparation tool for the pharmaceutical contract vaccine distributor and to validate its contents by using the Delphi method. Based on this, a tool was developed for the contract vaccine distributors. The Delphi method was used with a group of 14 experts from the pharmaceutical industry, authorities and university. The response rate in the Delphi questionnaire round was 100 %. The tool consisted of 33 quality items, out of which 29 (88%) achieved the pre-defined agreement rate level ( gt 75%). The four quality items which did not achieve the pre-defined agreement rate were excluded from the tool. The expert group suggested only minor changes to the tool. The results show that the content validity of the developed audit preparation tool was good. The resultant questionnaire is ready to use. Developed the ready-to-use questionnaire based on critical factors evaluation, gives an objective picture of the possibilities of the potential partner and help organisations make quality decision on the selection of contract vaccine distributors. The contract vaccine distributor must be permanently controlled and analysed, so as to maintain the required quality and to keep low level of costs
The Impact of Quality Management Purchasing Practices on Purchasing Performance in Transitional Economies
This study examines the nature of relationships between quality management practices in purchasing and purchasing-related organisational performance within ISO 9001:2008 environment in transitional economies. The study was based on managersā responses from 90 ISO 9001:2008 certified large organisations from Serbia. The findings show that quality management practices in purchasing positively affect purchasing performance. Further, purchasing performance is found to be a significant mediator between quality management practices and time-based performance. However, despite the overall good predictive model power, the explained variance on time-based performance is quite low. Thus, the effects on time-based performance are arguable. PLS-SEM Importance-performance analysis reveals that purchasing performance, cross-functional coordination and personnel management have relatively high performance, while benchmarking has the lowest value of the performance index. Consequently, the implementation of quality management practices in purchasing along with ISO 9001:2008 might be a part of a good strategic choice for transitional organisations to overcome troublesome transitional times. Still, the discrepancies between this study and the results from developed economies yield potential improvement areas on how organisations in transitional economies should manage purchasing practices
Active solar dryer for biological materials
U ovom radu se prikazuje originalno reÅ”enje male, pokretne, univerzalne, ekoloÅ”ke, komorne, aktivne suÅ”are za suÅ”enje bioloÅ”kih materijala, lekovitog, aromatiÄnog i zaÄinskog bilja. Proces suÅ”enja se ostvaruje solarnom energijom. Agens suÅ”enja je smeÅ”a svežeg vazduha i izraÄenog agensa suÅ”enja. Svež vazduh se zagreva u ravnom solarnom prijemniku i transportuje se do komore za suÅ”enje i kroz komoru za suÅ”enje ventilatorom postavljenim na vrhu komore za suÅ”enje. Promena položaja suÅ”are i prijemnika omoguÄava optimalni prijem solarne energije tokom celog dana. PV moduli, postavljeni na krovu suÅ”are, obezbeÄuju potrebnu elektriÄnu energiju za pogon ventilatora, sistema za kontrolu i za punjenje dve akumaulatorske baterije.U radu su takoÄe prikazani i rezultati eksperimentalnih istraživanja kinetike procesa suÅ”enja, koja su izvedena na prototipu solarne suÅ”are. .This paper presents an original design and construction of a small scale, mobile, universal, ecological, chamber, active, dryer for drying medicinal and aromatic plants and non-timber forest products. The drying process uses only solar energy. The drying agent is a mixture of hot pure air and already used drying agent from the drying chamber exhaust. Pure air is heated in flat plate solar collectors and it is pulled by an electrical fan placed on the top of the drying chamber. The mobility of the collectors and dryer provides optimal utilization of sun energy throughout the day. PV modules, placed on the roof of the dryer, generate all necessary electric power for the fan, the control system and charge a set of accumulators during the day. Experimental results and kinetics of the drying process obtained by the solar dryer prototype are also given
Analyzing Site-Specific Tractor Draft Force in Different Passes during Plowing
The difference in draft force is analyzed for six different passes during longitudinal plowing of the plot. The force is measured indirectly using four strain transducers. Values of the force are obtained by calculation after previous calibration and then measurements in the experimental field. The strain readings on the sensors installed on the outside of the tractor lower links are used. Similar values are obtained on the other two sensors installed on the inside of the links. The biggest difference is observed between the first and second pass, respectively, the second and third one for which the value of effect size amounts to 0,824 and 0,835 respectively. The study highlights draft force in the function of soil resistance as an exceptionally important parameter in the analysis of agricultural soil and suggests the expansion of current routine in precision agriculture mapping
First results of rescue archaeological excavations at the site of Belo brdo in VinÄa in 2019
U radu su predstavljeni preliminarni rezultati arheoloÅ”kih istraživanja obavljenih 2019. godine na delu nalaziÅ”ta koje je zahvaÄeno kliziÅ”tem. Iskopavanja su izvrÅ”ena na povrÅ”ini od oko 250 m2, u cilju zaÅ”tite srednjovekovne nekropole koja predstavlja najfragilniji deo kulturnih slojeva u VinÄi. Na istraženoj povrÅ”ini je dokumentovana 91 grobna celina. Prema predmetima naÄenim u grobovima vreme sahranjivanja okvirno je opredeljeno u razdoblje 13-14. veka. Na prostoru nekropole otkriveni su i ostaci tri peÄi, koje su takoÄe pripisane srednjovekovnom periodu, ali su starije od istraženih grobova. Najstarije horizonte na povrÅ”ini obuhvaÄenoj iskopavanjima Äinila su dva gorela, ruÅ”evinska sloja neolitskih objekata.This paper presents the preliminary results of recent fieldwork conducted in the part of the site of VinÄa - Belo Brdo that is endangered by a landslide. In order to excavate the rich archaeological remains before the situation with the sediment movements worsens, rescue excavations took place in the second half of 2019. The focus of this campaign was to investigate the level of destruction of this part of the site, as well as to excavate the human remains from the medieval necropolis that represents the final phases of occupation at the site. Since the first excavations of VinÄa in 1908, and especially in the early campaigns of 1911 and 1912, medieval material and presence of inhumations was noted in large numbers. Systematic excavations in the period 1978-1983 were, among other things, focused on the excavation of the necropolis. According to the material in the National museum in Belgrade that originates from the site of VinÄa without any specific context, the chronological span of the necropolis was divided into four horizons, ranging, very widely, from the 8th up to the 17th century. Available documentation from these excavations shows the presence of three stratigraphic horizons. At the end of these excavations, the total number of inhumations was well over 1000. In 2011, the focus of research at the site was on the area endangered by the landslide. In a trench with dimensions of 4 x 20 metres, additional 71 graves were excavated, sometimes containing several burials. During the 2019 campaign, a surface of ca. 250 square meters was investigated, with 91 defined and documented graves that sometimes contained several burials. Contrary to the earlier excavations, the number of burials of juveniles is much higher. There were 36 juvenile and 59 adult burials. Among the burials, remains of three medieval ovens were discovered, and one of them was excavated (Oven 3). Up to now, no medieval structures were documented at Belo Brdo. Oven 3 contained two substructions with pottery sherds, stone and brick fragments. Pottery fragments originated both from prehistory and from the medieval period as well. Most of them could not be more precisely dated due to their small size, but those with ornaments could be dated into the period between the 9th and 11th century. As for small finds from the graves, they could be dated into the period of the 13th and 14th century. The most notable one is a bronze belt found in situ. The horizon with ovens is older than the inhumations, as shown not only by the material but also by Grave 87 cutting and damaging Oven 3. The excavations stopped at the level of Neolithic burnt daub. Two Neolithic burnt structures (houses) were detected, in the south-western and south-eastern part of the trench. Faunal remains from all contexts were analysed. Since most of the material originates from disturbed layers due to recent gardening, vegetation and landslide, the distribution of various animal taxa was documented only for Sector K
Nanostructured Fe2O3/TiO2 thick films prepared by screen printing
Nanostructured single layered (pure TiO2 , pure Ī±-Fe2O3 and mixed Fe2O3 /TiO2 with two different oxide ratios, 2 : 3 and 3 : 2) and double layered (TiO2 layer over a Fe2O3 layer) thick films have been fabricated by screen printing technology on a glass substrate. The pastes used for film preparation were obtained by adding an organic vehicle to the oxide powders together with a small percentage of binding glass frit. Samples were dried up to 100 Ā°C and sintered at 650 Ā°C/60 minutes. Structural, morphological and optical studies have been carried out using XRD, SEM analyses and UV/Vis spectroscopy. The prepared pure and mixed Fe2O3 /TiO2 thick films had a homogenous nanostructure without secondary phases. Indirect band gaps were determined from the measured transmission spectra and the obtained values are in the range of literature data. [Projekat Ministarstva nauke Republike Srbije, br. III45007
Seeking the Holy Grail: robust chronologies from archaeology and radiocarbon dating combined
The strengths of formal Bayesian chronological modelling are restated, combining as it does knowledge of the archaeology with the radiocarbon dating of carefully chosen samples of known taphonomy in association with diagnostic material culture. The risks of dating bone samples are reviewed, along with a brief history of the development of approaches to the radiocarbon dating of bone. In reply to Strien (2017), selected topics concerned with the emergence and aftermath of the LBK are discussed, as well as the early Vinā a, Raā«iāte and Hinkelstein sequences. The need for rigour in an approach which combines archaeology and radiocarbon dating is underlined
Interwoven strands for refining the chronology of the Neolithic tell of VinÄa-Belo Brdo, Serbia
A formally modeled radiocarbon chronology for a new profile through the great Neolithic tell of VinÄa-Belo Brdo, Serbia, is the third interwoven strand in refining the chronology of the tell. This now joins models for the whole sequence based on the archive of early excavations, and for the last two known horizons at the top of the settlement mound, investigated in recent decades. In the new deep sounding, VinÄa culture occupation from the 52nd century cal BC is slightly later than in the main sequence, probably reflecting the horizontal extension of the tell as it began to grow. The last dated occupation falls in the late 47thāearly 46th century cal BC, slightly earlier than in the main sequence, but the top of the profile is affected by the slippage that caused the new excavations. Formal estimates are given for the succession and varying durations of burnt and unburnt houses, and indicate a period in the first part of the 5th millennium without house burning. Overall, the combined results from the three interwoven strands serve to produce a radically enhanced understanding of the temporality of the tell, which builds on, rather than supplants, previous research. We knew previously that VinÄa-Belo Brdo was very long-lived, but now we can time that history with much greater precision. We can assert with much greater confidence that its vertical buildup was steady and largely uninterrupted. We have begun, from the work on the top of the tell and in the new deep sounding, to grasp better the fluctuations in house durations from generation to generation, and can now contrast the relative fortunes of unburnt and burnt houses. We can say much more about the timing and tempo of the ending of the tell, and about the possible circumstances in which that took place