618 research outputs found

    Some Considerations about the Peregrine Communities in Upper Moesia

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    Abstract: The present paper offers an outline of important evidence about the territories and the administration of the peregrine communities in Upper Moesia. The study of this type of communities can contribute to better understanding of the administrative history of this Roman province and help set the framework for the further research on this topic; this is especially important for the province of Upper Moesia since our knowledge of its ancient past is quite fragmentary.Apstrakt: Kada se napravi poređenje sa nekim drugim provincijama Rimskog carstva, generalno se ne zna mnogo o provinciji Gornjoj Meziji, a naročito kada je u pitanju upravna istorija i etničke i demografske prilike u njoj. Razlog tome treba tražiti pre svega u nedostatku dovoljno rečitih svedočanstava u izvorima, kako knjiÅ”kim tako i dokumentarnim. U ovom radu pažnja je usmerena na peregrine zajednice ili civitates peregrinae ove provincije. U pitanju su je jedan tip provincijskih administrativnih jedinica u koje je bilo organizovano domorodačko stanovniÅ”tvo po uspostavljanju rimske uprave i koje je većinski bilo u statusu peregrina. Ne ulazeći u sva, već samo u pojedina važna pitanja nastoji se da se odrede okviri u kojima bi se u daljim istraživanjima mogli sprovesti metodoloÅ”ki principi, utvrđeni na drugom reprezentativnijem materijalu istog tipa administrativnih zajednica; daje se pregled najvažnijih svedočanstava o broju, rasporedu i teritorijama zajednica, te o pojedinim upravnim pitanjima i pretresaju najvažniji dosad izneti stavovi o njima

    Roman Military Strategy in the Iron Gates in the Light of Epigraphic Evidence

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    The paper explores epigraphic evidence that shed light on the Roman defence strategy in the region of the Iron Gates from first to third centuries CEā€”from the early military presence of Romans in this region and the establishment of the Roman limes on the Danube until its refortification after the abandonment of Dacia and the establishment of DaciaRipensis. The complex relationship between the two banks of the Danube, the question of provincial borders and the command of the units stationed in the fortifications in the gorge will be examined based on the inscriptions

    Silicon and Iron Differently Alleviate Copper Toxicity in Cucumber Leaves

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    Copper (Cu) toxicity in plants may lead to iron (Fe), zinc (Zn) and manganese (Mn) deficiencies. Here, we investigated the effect of Si and Fe supply on the concentrations of micronutrients and metal-chelating amino acids nicotianamine (NA) and histidine (His) in leaves of cucumber plants exposed to Cu in excess. Cucumber (Cucumis sativus L.) was treated with 10 mu M Cu, and additional 100 mu M Fe or/and 1.5 mM Si for five days. High Cu and decreased Zn, Fe and Mn concentrations were found in Cu treatment. Additional Fe supply had a more pronounced effect in decreasing Cu accumulation and improving the molar ratio between micronutrients as compared to the Si supply. However, the simultaneous supply of Fe and Si was the most effective treatment in alleviation of Cu-induced deficiency of Fe, Zn and Mn. Additional Fe supply increased the His but not NA concentration, while Si supply significantly increased both NA and His whereby the NA:Cu and His:Cu molar ratios exceeded the control values indicating that Si recruits Cu-chelation to achieve Cu tolerance. In conclusion, Si-mediated alleviation of Cu toxicity was directed toward Cu tolerance while Fe-alleviative effect was due to a dramatic decrease in Cu accumulation

    Establishment and in-house validation of stem-loop rt pcr method for microrna398 expression analysis

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    MicroRNAs (miRNAs) belong to the class of small non-coding RNAs which have important roles throughout development as well as in plant response to diverse environmental stresses. Some of plant miRNAs are essential for regulation and maintenance of nutritive homeostasis when nutrients are in excess or shortage comparing to optimal concentration for certain plant species. Better understanding of miRNAs functions implies development of efficient technology for profiling their gene expression. We set out to establish validate the methodology for miRNA gene expression analysis in cucumber grown under suboptimal mineral nutrient regimes, including iron deficiency. Reverse transcription by "stem-loop" primers in combination with Real time PCR method is one of potential approaches for quantification of miRNA gene expression. In this paper we presented a method for "stem loop" primer design specific for miR398, as well as reaction optimization and determination of Real time PCR efficiency. Proving the accuracy of this method was imperative as "stem loop" RT which consider separate transcription of target and endogenous control. The method was verified by comparison of the obtained data with results of miR398 expression achieved using a commercial kit based on simultaneous conversion of all RNAs in cDNAs

    Digitizing Ancient Epigraphic Heritage: Project EpiDoc XML Encoding of Roman Inscriptions from Serbia

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    The project EpiDoc XML Encoding of Roman Inscriptions from Serbia: Digitization of Ancient Epigraphic Heritage carried out by the Institute for Balkan Studies of the Serbian Academy of Sciences and Arts and funded by the Ministry of Culture and Information of the Republic of Serbia focuses on research, training, digital documenting and digital edition of Roman inscriptions from the territory of Serbia (the Roman province of Upper Moesia and parts of Lower Pannonia, Dalmatia and Thrace). The projectā€™s primary aim is to form a national e-archive of inscriptions that will be encoded in EpiDoc TEI-XML format. This collection of digital corpora will represent a completely new epigraphic edition that is furthermore born-digital and ready for interchange. The project is envisioned as a core for networking and intensifying the collaboration between research and cultural institutions. Its mission is to educate, inspire and instigate collaborative work and new concepts in epigraphic research.Poster presented at the 24. LIMES CONGRESS Serbia, 201

    Silicon Alleviates Iron Deficiency in Barley by Enhancing Expression of Strategy II Genes and Metal Redistribution

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    The beneficial effects of silicon (Si) have been shown on plants using reduction-based strategy for iron (Fe) acquisition. Here we investigated the influence of Si on Fe deficiency stress alleviation in barley (Hordeum vulgare), a crop plant which uses the chelation-based strategy for Fe acquisition. Analyses of chlorophyll content, ROS accumulation, antioxidative status, concentrations of Fe and other micronutrients, along with the expression of Strategy II genes were studied in response to Si supply. Si successfully ameliorated Fe deficiency in barley, diminishing chlorophyll and biomass loss, and improving the activity of antioxidative enzymes, resulting in lowered reactive oxidative species accumulation in the youngest leaves. Alleviation of Fe deficiency stress correlated well with the Si-induced increase of Fe content in the youngest leaves, while it was decreased in root. Moreover, Si nutrition lowered accumulation of other micronutrients in the youngest leaves of Fe deprived plants, by retaining them in the root. On the transcriptional level, Si led to an expedient increase in the expression of genes involved in Strategy II Fe acquisition in roots at the early stage of Fe deficiency stress, while decreasing their expression in a prolonged stress response. Expression of Strategy II genes was remarkably upregulated in the leaves of Si supplied plants. This study broadens the perspective of mechanisms of Si action, providing evidence for ameliorative effects of Si on Strategy II plants, including its influence on accumulation and distribution of microelements, as well as on the expression of the Strategy II genes

    New and revised inscriptions from Dalmatia. Municipium Malvesiatium and municipium Splonistarum

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    This paper provides new epigraphic evidence from the Roman province of Dalmatia, more precisely from its easternmost parts, which belong today to Serbia. The present edition is based on our autopsy performed during 2015ā€“2016 within the framework of the digitization project carried out by the Institute for Balkan Studies of the Serbian Academy of Sciences and Arts

    Are we reaching a turning point in Serbia with respect to Serbian Sign Language in deaf education?

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    This paper provides an overview of the challenges affecting deaf education in Serbia, as well as in Serbian Sign Language (SZJ) by probing important policy measures that have been introduced over the years. Furthermore, we provide a summary of sign language research and the beginning of deaf awareness in Serbia. Our discussion focuses on key changes in the education policy that took place in 2009 when inclusive education was introduced and when Serbia ratified the United Nationā€™s Convention on the Rights of Persons with Disabilities (UNCRPD). The ratification of UNCRPD and the subsequent empowerment of the Serbian deaf community paved the way for the legal recognition of Serbian Sign Language in 2015, along with the enactment/passing of the Law on the Use of Sign Language. We review the existing legal and policy documents concerning deaf education and Serbian Sign Language by providing an outline of the governmentā€™s latest Strategy on Education until 2030 and its accompanying Action Plan until 2023. In conclusion, by focusing on the major goals set by the Strategy and the Action plan, we consider the feasibility of the goals with respect to the time frame and situation in practice

    DNA and biochemical analysis of a potential opaque2 maize population

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    Maize has low nutritional value because it is poor in essential amino acids lysine and tryptophan, but different mutations have been identified that increase their content. Two high lysine/tryptophan populations from Maize Research Institute genebank (IP1 and IP2) were identified in a previous research. In both populations, analysis with umc1066 opaque2 specific marker detected a recessive (o2), a dominant (O2) and an unknown allele (UA). However, IP2 lacked homozygous recessive o2o2 genotypes. The aim of the present research was to determine by DNA and biochemical analysis if UA allele was a recessive allele and/or if high tryptophan content was due to the o2 or some other mutation. Tree more opaque accessions with different mutations - IP3o5, IP4o14 and IP5floury (no data on type of mutation) were used in biochemical analysis for comparison with IP1 and IP2. Kernels were divided into two samples - with hard and with soft kernels. The UA allele sequencing revealed that it was a dominant allele with four GCCAGA repeats. SSR analysis showed presence of o2 in IP1 in both hard and soft kernels. Decrease in 22 kDa, 19 kDa and 27 kDa zeins in soft kernels was observed only in IP1 and IP2. Tryptophan content was high in soft kernels of IP1 (0.081) and IP2 (0.085), and in both hard and soft kernels of -IP3o5 (0.083 and 0.085, respectively). It can be concluded that IP1 is an o2 mutant and that IP2 carries a high tryptophan mutation other than o2, o5, o14 or floury
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