1,771 research outputs found

    Pomološke i proizvodne osobine nekih novijih sorti šljive

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    Plum assortment in Serbia is dominated by old autochthonous cultivars, well-known cultivar ‘Stanley’ and cultivars named and released in Fruit Research Institute, Čačak such as: ‘Čačanska lepotica’, ‘Čačanska rodna’, ‘Čačanska rana’ and ‘Čačanska najbolja’. In order to fulfill different demands of fresh fruit market and achieve better results in modern plum production, it is necessary, among other things, to introduce new cultivars. Before introduction of new cultivars in orchards, significant evaluation of these cultivars in environmental conditions of region they are being introduced is required. The main objective of this study was to evaluate the most importand pomological and productive traits of six introduced plum cultivars: ‘Hanita’, ‘Jojo’, ‘Jubileum’, ‘Presenta’, ‘Tegera’ and ‘Valor’. The most important phenological (flowering and ripening time), and morphometric traits (fruit and stone weight, fruit dimensions and flash percentage), as well as tree vigour (trunk cross section area) and cropping potential (yield per tree and yield efficiency) were evaluated. Flowering phenofase in all examined cultivars lasted during the second decade of april, whereby flowering abundance was estimated as very good. The largest fruit weight, and fruit dimensions (height, width and thickness) were determined in ‘Valor’, whereas the largest stone weight and tree vigour were determined in ‘Jubileum’. The largest flesh percentage was found in cultivars ‘Jojo’, ‘Tegera’ and ‘Valor’. Cultivars ‘Presenta’ and ‘Jojo’ had largest yield per tree, while ‘Jojo’ had the highest yield efficiency.U sortimentu šljive u Srbiji dominiraju stare, authtone sorte, dobro poznata sorta ‘Stanley’ i sorte stvorene u Institutu za voćarstvo, Čačak, pre svih ‘Čačanska lepotica’, ‘Čačanska rodna’, ‘Čačanska rana’ i ‘Čačanska najbolja’. Da bi se zadovoljili različiti zahtevi tržišta i postigli što bolji rezultati u savremenoj proizvodnji šljive, neophodno je, između ostalog, introdukovati nove sorte. Pre uvođenja u proizvodnju, ove sorte zahtevaju značajno ispitivanje u ekološkim uslovima regiona u koji se introdukuju. Cilj ovog rada je bio da se ispitaju najznačajnije pomološke i proizvodne osobine šest introdukovanih sorti šljive: ‘Hanita’, ‘Jojo’, ‘Jubileum’, ‘Presenta’, ‘Tegera’ i ‘Valor’. Ispitivane su najznačajnije fenološke (fenofaza cvetanja i sazrevanja plodova) i morfometrijske osobine (masa i dimenzije ploda, masa koštice i randman mezokarpa ploda), kao i bujnost (površina poprečnog preseka debla) i rodnost (prinos po stablu i koeficijent rodnosti). Fenofaza cvetanja je kod svih ispitivanih sorti trajala tokom druge dekade aprila u obe ispitivane godine, pri čemu je obilnost cvetanja ocenjena kao veoma dobra. Najveća masa, visina, širina i debljina ploda su utvrđeni kod sorte ‘Valor’, dok su najveća masa koštice i bujnost stabla utvrđeni kod sorte ‘Jubileum’. Najveći randman ploda imale su sorte ‘Jojo’, ‘Tegera’ i ‘Valor’. Sorte ‘Presenta’ i ‘Jojo’ su imale najveći prinos po stablu, dok je sorta ‘Jojo’ imala i najveći koeficijent rodnosti

    Biološko-pomološke osobine autohtonih sorti šljive u agroekološkim uslovima Čačka

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    This study was carried out to determine basic biological and pomological traits of eight ex situ autochthonous plum cultivars (‘Belošljiva Ljubić’, ‘Bugarka’, ‘Cerovački piskavac’, ‘Crnošljiva’, ‘Crvena ranka’, ‘Dragačevka’, ‘Papračanka’ and ‘Petrovača’) during two consecutive years (2015 and 2016). Examination included investigation of the main phenological properties (flowering and ripening time), morphometrical (fruit and stone weight and flesh percentage) and sensorial properties of fruit (fruit scin and flesh colour, flesh firmness and stone adherence), as well as vigour (trunk cross sectional area) and cropping potential (yield per tree and yield efficiency). Studied plum cultivars flowered from the end of the first to the mid of the third decade of April and ripened during the third decade of July and the first and the second decade of August. The highest vigour and yield per tree was found in cultivar ‘Dragačevka’, while the highest yield efficiency was observed in cultivar ‘Cerovački piskavac’. Cultivar ‘Belošljiva Ljubić’ had the highest values of fruit and stone weight. The highest velue of flesh percentage was observed in cultivar ‘Dragačevka’. Dark-blue fruit skin colour was dominant, while flesh colour varied from yellowish green to yellow. Flesh was medium firm to firm and non adherent, semi adherent or adherent to the stone.Ispitivanja obuhvaćena ovim radom su sprovedena sa ciljem determinacije najvažnijih biološko-pomoloških osobina osam autohtonih sorti šljive (Belošljiva Ljubić, Bugarka, Cerovački piskavac, Crnošljiva, Crvena ranka, Dragačevka, Papračanka i Petrovača) u ex situ uslovima tokom 2015. i 2016. godine. Proučavane su najznačajnije fenološke osobine (fenofaze cvetanja i sazrevanja plodova), morfometrijske (masa ploda i koštice, randman mezokarpa ploda) i senzorne osobine ploda (boja pokožice i mezokarpa ploda, čvrstina mezokarpa i stepen prijanjanja koštice), kao i bujnost (površina poprečnog preseka debla) i rodnost (prinos po stablu i koeficijent rodnosti). Proučavani genotipovi šljive su cvetali od kraja prve do sredine treće dekade aprila, a sazrevali tokom treće dekade jula i prve i druge dekade avgusta. Najvećom bujnošću i najvišim prinosom po stablu se odlikovala sorta Dragačevka, dok je najviši indeks rodnosti utvrđen kod sorte Cerovački piskavac. Najveća masa ploda i koštice su utvrđene kod sorte Belošljiva Ljubić, a najveći randman mezokarpa ploda kod sorte Dragačevka. Dominirala je tamno plava boja pokožice ploda. Mezokarp ploda je bio žute ili žuto-zelene boje, srednje čvrst do čvrst, dok je koštica bila slobodna, delimično slobodna ili je u potpunosti prijanjala za mezokarp ploda

    Indicative Levels of Pm in the Ambient Air in the Surrounding Villages of the Copper Smelter Complex Bor, Serbia

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    While information on air pollution in the form of particulate matter (PM) has been monitored for a longer period for EU countries, availability of PM data sets in the Western Balkan countries, including the Republic of Serbia, are still limited. Studies related to particulate pollution research have only been carried out in the past several years. The main objective of this paper is to present PM levels measured in the ambient air in the surrounding settlements of the Copper Smelter Complex Bor, as well as a comparison of PM levels in the surrounding settlements with those measured in Bor town. The ambient levels of PM particles (PM10, PM2.5) were measured by automatic PM monitors in 4 nearby settlements: Slatina, Ostrelj, Krivelj and Brezonik in the time interval from 2005 to 2010. According to the measurement results, PM10 and PM2.5 levels in the ambient air were higher in the cold, heating, (October-March) than In the warm no heating period (April-September). Exceeding of the daily limit of PM10 and PM2.5 mass concentration levels was observed at all measuring points. A higher number of exceedances was detected in the cold period. The results indicate that there is a significant seasonal change in the level of fine particles at all measuring places in surroundings. In addition, the PM levels in Bar are more influenced by the air pollution from the Copper Smelter Complex than the settlements in the vicinity, where the PM concentrations were greatly Influenced by the presence of domestic heating in the cold period

    Noviji rezultati oplemenjivanja voćaka u Institutu za voćarstvo, Čačak

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    The Fruit Research Institute Čačak has seventy years long tradition in breeding of continental fruit species. The continual multi-disciplinary scientific and research work conducted so far has resulted in the releasing of 41 different cultivars. In addition to the named and released cultivars, for promising candidate cultivars have been selected (three plums and one peach) and entered for releasing, while there is also a large number of promising genotypes that are currently under intense evaluation. The paper presents an overview of the most significant biological and productive characteristic of the 12 new cultivars of pome and stone fruits, including seven plum cultivars (Boranka, Timočanka, Zlatka, Nada, Mildora, Krina and Pozna plava), two pear cultivars (Julijana and Anđelija) and three sour cherry cultivars (Sofija, Nevena and Iskra).Institut za voćarstvo, Čačak ima sedamdeset godina dugu tradiciju oplemenjivačkog rada na stvaranju novih sorti kontinentalnih vrsta voćaka. Do sada je kao rezultat kontinuiranog, multidisciplinarnog naučnoistraživačkog rada priznata 41 sorta različitih vrsta voćaka. Pored priznatih sorti, izdvojene su četiri kandidat sorte (tri šljive i jedna breskve) koje su u postupku priznavanja, kao i veliki broj perspektivnih genotipova koji se intenzivno proučavaju. U radu je prikazan pregled najznačajnijih bioloških i proizvodnih osobina 12 novije priznatih sorti jabučastih i koštičavih vrsta voćaka, i to: sedam sorti šljive (Boranka, Timočanka, Zlatka, Nada, Mildora, Krina i Pozna plava), dve sorte kruške (Julijana i Anđelija) i tri sorte višnje (Sofija, Nevena i Iskra)

    Single-Neuron Level One-Photon Voltage Imaging With Sparsely Targeted Genetically Encoded Voltage Indicators

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    Voltage imaging of many neurons simultaneously at single-cell resolution is hampered by the difficulty of detecting small voltage signals from overlapping neuronal processes in neural tissue. Recent advances in genetically encoded voltage indicator (GEVI) imaging have shown single-cell resolution optical voltage recordings in intact tissue through imaging naturally sparse cell classes, sparse viral expression, soma restricted expression, advanced optical systems, or a combination of these. Widespread sparse and strong transgenic GEVI expression would enable straightforward optical access to a densely occurring cell type, such as cortical pyramidal cells. Here we demonstrate that a recently described sparse transgenic expression strategy can enable single-cell resolution voltage imaging of cortical pyramidal cells in intact brain tissue without restricting expression to the soma. We also quantify the functional crosstalk in brain tissue and discuss optimal imaging rates to inform future GEVI experimental design

    Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

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    Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

    Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at √s = 7 TeV

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    Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. The data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb[superscript −1]. The measured cross sections are compared to predictions from Monte Carlo generators, MadGraph + pythia and sherpa, and to next-to-leading-order calculations from BlackHat + sherpa. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio

    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
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