Top PDF A contribution to the data on tench (Tinca tinca L., Cyprinidae, pisces) distribution in Serbia

A contribution to the data on tench (Tinca tinca L., Cyprinidae, pisces) distribution in Serbia

A contribution to the data on tench (Tinca tinca L., Cyprinidae, pisces) distribution in Serbia

Record of the presence of tench in the northernmost parts of Serbia was made in Paliã (1) and Ludoš lakes (2) of Aeolian origin. The lakes are located between the Danube and Tisa rivers next to the state border with Hungary (Fig. 1). Lake Paliã is an important tourist destination in this part of Europe. The depth of 3—4 m, mean water t° of about 10°C, the muddy bottom, and the dense macrophyte vegetation cover make the above ecosystem a favourable habitat for this species. Until the 1960s, the ichthyofauna of the lake was cha- racterised by markedly excessive production of carp (Cyprinus carpio) — ma- king up 98% of the total ichthyofauna biomass. However, the lake experienced environmental catastrophe towards the end of the1960s. Drastic deterioration of the lake water quality induced by permanent waste water discharges from the city of Subotica (8 km away) and other populated areas as well as from agricultural sources led to large-scale death of fish (the essential reason being high silt concentrations of H 2 S) in 1971 (M a l e t i n et al., 1998a). Over the period 1971—1976, lake restoration (emptying of the lake, silt removal and re- filling) and stocking were performed. This resulted in the establishment of a dynamic equilibrium. Apart from the Asian herbivore, primarily the grass carp (Ctenophayngodon idella), in the period 1976—1982, the tench was also intro- duced at the rate of 60—100 kg/year. This induced a moderate increase in the species abundance followed by a decrease in its number as early as in the 1990s due to the deterioration of ambient conditions (Ð u k i ã et al., 1991). Currently, the lake ecosystem is characterised by low numbers of the tench (accounting for about 1% of the total fish catch). Lake Ludoš is located in an urban area 12 km away from the town of Subotica. It is supplied with water through the Ludoš-Lake canal that receives purified water from Lake Paliã and the Kereš Brook. It is surrounded by farms that use its water for irrigation. This shallow lake (with an average depth of 1m) and its surroundings marked by diverse habitats — a swamp, a meadow and a steppe (the total area of 5.93 km 2 ), were included in the Ramsar List of Wetlands of International Impor-
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Contribution to knowledge of the bryophyte flora of Bačka (Vojvodina, Serbia)

Contribution to knowledge of the bryophyte flora of Bačka (Vojvodina, Serbia)

Bačka is a part of the Great Panonian Plain, bound- ed by the rivers Danube and Tisa and the Serbian-Hunga- rian border in the north and having no hills, but with two interesting loess plateaus (Titel and Telečka), the later of which is larger. The Titel loess plateau is situated in the SE part of Bačka at the confluence of the Tisa and the Danube. Its slopes are extremely interesting bryological- ly, while the flat upper part is used agriculturally. We con- ducted bryological investigation on the Titel loess cliffs and their sourroundings (including part of the city of No- vi Sad). The results of this investigations are discussed in the present study.
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Clinicopathological characteristics, diagnosis and treatment of melanoma in Serbia: The Melanoma Focus Study

Clinicopathological characteristics, diagnosis and treatment of melanoma in Serbia: The Melanoma Focus Study

Based on the previous studies 8, 9 , dacarbazine has an overall response rate of ≤ 20% and complete response rate of 2–3% and this is in line with our data. Even in patients with complete responses, these are rarely durable, 6.6 months in our survey. Similar figures were found in previ- ous studies 8, 9 . Based on the European and US treatment guidelines vindesine, fotemustine, paclitaxel are also indi- cated as monochemotherapy in first or second-line treat- ment with similar efficacy 2, 3, 10 . However, vindesine and fotemustine are not registered and paclitaxel is registered but not reimbursed in Serbia. The only second line options is polychemotherapy with dacarbazine and platinum com- pounds ± vinblastine (CVD), although CVD regimen was found in the previous study not to be effective in second- line setting in patients previosly treated with dacarbazine 11 . This is the reason why in the modern treatment of metas- tatic melanoma, cytotoxic chemotherapy is largely aban- doned as the first-line option, except in much selected cases
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THE USE OF ACCOUNTING IN THE MANAGEMENT OF SMALL BUSINESS AND THEIR INFLUENCE IN THE DEVELOPMENT OF IMPERATRIZ/MA: IN THE PERCEPTION OF ACCOUNTING SCIENCES STUDENTS

THE USE OF ACCOUNTING IN THE MANAGEMENT OF SMALL BUSINESS AND THEIR INFLUENCE IN THE DEVELOPMENT OF IMPERATRIZ/MA: IN THE PERCEPTION OF ACCOUNTING SCIENCES STUDENTS

Abstract: Small businesses are fundamental to the economic development of the country, regions and locations. The use of the accounting information is indispensable for good business management, which goes beyond business success. This article aims to analyze the contribution of Accounting in the management of small businesses in the City of Imperatriz and its influence on local development, according to the perception of Accounting Sciences students of the Imperatriz Campus of the Federal University of Maranhão. Data collection was performed by applying a questionnaire, which were answered freely by 61 students. As a result it was found that Accounting contributes to the management of small businesses, whose performances resulted in the economic development of the municipality of Imperatriz. It can be concluded that, small businesses that use Accounting as a management tool have greater potential to achieve success, generating development for the city of Imperatriz.
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New data on the geology of the archaeological site at Vinča (Belgrade, Serbia)

New data on the geology of the archaeological site at Vinča (Belgrade, Serbia)

The base of geological structure near the archaeolog- ical site consists of Sarmatian brackish-marine se- diments of the Late Middle Miocene. However, these sediments were not found in all the prospecting bore- holes. Probably, they lie much deeper than 65 m.a. s.l. (Figs. 3, 9). Sarmatian strata were discovered on the right bank of the Danube River (N 44°45’54”, E 20°37’21”) about 200–300 m upstream from the archaeological site (see Figs. 2A, B). They are made of striped and laminated sandy marls, alevrites and green clay. In the lithological succession, there are an alterna- tion of light interlayers enriched with calcium carbon- ate and dark, grey-green laminas enriched with clay minerals. The layers have very steep declines oriented toward the N–NE (azimuth and dip angle of the surface layer is 63/27 – see Fig. 2C). Besides, the Sarmatian layers were found in the riverbed of the Danube River. They are observed in the shallows at low water levels, and they have steeper dip angles (more than 70° – Fig. 2D). However, there are strata that oriented toward the S–SW, which probably indicate a local anticlinal struc- ture within the Sarmatian sediments. Fossil macrofau- na in the Sarmatian sediments near the Vinča archaeo- logical site as well as in its vicinity is very rare and it is assumed to belong to the lower part of the Sarmatian (the so-called the Rissoa layers). Among the rare gas- tropods, representatives of the genus Gibulla (Gibulla cf. depressa, Gibulla sp.) and Cerithium sp. dominate. Additionally, small bones of fish, otholites (Gadus? sp.) and fragments of organic matter were identified.
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Parameterisation effect on the behaviour of a head-dependent hydro chain using a nonlinear model

Parameterisation effect on the behaviour of a head-dependent hydro chain using a nonlinear model

This paper deals with the STHS problem viewed as an indefi- nite quadratic programming problem with continuous variables. The proposed NLP method applied to the STHS problem is suc- cessful, providing a higher profit in comparison with classic optimisation methods based on LP that ignore head depen- dence and nonlinearity in the objective function, with negligible extra computational effort required. A better short-term manage- ment of the conversion of the potential energy available in the reservoirs into electric energy, considering head dependency, is crucial for hydroelectric utilities to face competitiveness in nowadays profit-based environment. An example based on a real cascaded hydro system is used to prove as a new contribution to earlier studies that the physical data defining the hydro chain parameters used in the nonlinear model have a significant effect on the behaviour of reservoirs in a hydro chain, implying dif- ferent optimal storage trajectories to the reservoirs accordingly, not only with their relative position in the cascade, but also with the new parameterisation defining the data for the hydro system. Hence, we conclude as the main contribution of this paper for the short-term management of head-dependent hydro chains that there is no clear and definitive rule about what is the volume of the water to store in each reservoir at each period to achieve the optimum STHS based only on the reservoirs relative position.
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Contribution to the myrmecofauna (Formicidae, Hymenoptera) of Mt. Kopaonik (Serbia)

Contribution to the myrmecofauna (Formicidae, Hymenoptera) of Mt. Kopaonik (Serbia)

Comparing these results with some former ones, we see that some of the species found on Mt. Kopaonik have been reg- istered before at other localities in Serbia. Thus, Ž i v o j i - n o v i ć (1950) recorded elsewhere 12 of the species found by us on Mt. Kopaonik (Ponera coarctata, Myrmica rubra, M. scabrinodis, Tetramorium caespitum, Tapinoma erraticum, Lasius alienus, L. brunneus, L. niger, Camponotus herculeanus, Formica gagates, F. pratensis, and F. rufa). According to P e t r o v (1986) seven species (Ponera coarctata, Myrmica sabuleti, Lasius alienus, L. flavus, Camponotus herculeanus, Formica cunicularia, and F. gagates) found in oak-tree commu- nities at Mt. Jastrebac (Serbia) were the same as those found on Mt. Kopaonik. In some meadows and pastures in the Stara Planina Mountains (Serbia), P e t r o v and M e s a r o š (1988) registered seven of the species found by us on Mt. Kopaonik (Myrmica lobicornis, M. rubra, Lasius alienus, L. brunneus, Formica cunicularia, F. pratensis, and F. rufibarbis).
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Epidemiol. Serv. Saúde  vol.25 número4

Epidemiol. Serv. Saúde vol.25 número4

Objective: to describe seasonal mosquito distribution and the incidence of dengue cases in Barreiras, Bahia, Brazil. Methods: this is a descriptive study using primary data on mosquito distribution in ovitraps from April 2012 to March 2013, as well as secondary data from the Notifiable Diseases Information System, Epidemiological Surveillance and the Zoonosis Control Center about dengue cases and Aedes aegypti infestation rates from January 2007 to March 2013. Results: 16,512 mosquito specimens were collected, 62.0% were Culex quinquefasciatus (most frequent in the dry season) and 38.0% were Aedes aegypti (most frequent in the rainy season); 8,373 dengue cases were recorded, with highest incidence per 100,000 inhabitants in 2009 (n=704.5), 2011 (n=429.3) and 2013 (n=247.2), between January and June. Conclusion: Culex quinquefasciatus and Aedes aegypti occurred in all months; dengue incidence was higher in the rainy season and in alternating years.
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STATE SPACE GENERATION FRAMEWORK BASED ON BINARY DECISION DIAGRAM FOR DISTRIBUTED EXPLICIT MODEL CHECKING

STATE SPACE GENERATION FRAMEWORK BASED ON BINARY DECISION DIAGRAM FOR DISTRIBUTED EXPLICIT MODEL CHECKING

This paper proposes a new framework based on Binary Decision Diagrams (BDD) for the graph distribution problem in the context of explicit model checking. The BDD are yet used to represent the state space for a symbolic verification model checking. Thus, we took advantage of high compression ratio of BDD to encode not only the state space, but also the place where each state will be put. So, a fitness function that allows a good balance load of states over the nodes of an homogeneous network is used. Furthermore, a detailed explanation of how to calculate the inter-site edges between different nodes based on the adapted data structure is presented.
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CHANGES ON DATA COLLECTION SCALE INFLUENCING THE BIDIRECTIONAL REFLECTANCE DISTRIBUTION FUNCTION

CHANGES ON DATA COLLECTION SCALE INFLUENCING THE BIDIRECTIONAL REFLECTANCE DISTRIBUTION FUNCTION

For surface S3, the grooves presented no pattern of arrange- ment, and deformations varied from the order of fraction of cen- timeter to the order of units of centimeter. For this reason, the FOV projection of 1 ◦ may favor one type of relief, in spite of others, so that the observed area is not representative of the en- tire surface. For this reason, the differentiated behavior of the 1 ◦ curve in relation to 8 ◦ and 25 ◦ FOVs, as shown in Figure 8(c), can be justified by the fact that the FOV projection of 1 ◦ FOV possibly covered areas whose relief favors shadowing produc- tion in a preferred direction. On the other hand, 8 ◦ and 25 ◦ FOVs appear to be large enough to encompass a greater diversity of objects, so that the areas observed through these two FOVs are similar to each other as regards surface texture. Moreover, this diversity combined with the randomness of the surface relief does not prioritize the formation of shadow in a single direction. With the source zenith angle fixed and the sensor always at nadir, the azimuth variation produces regions of shadow under constant proportion, which may justify the behavior of the curves of 8 ◦ and 25 ◦ FOV.
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One hundred millipede species in Serbia (Arthropoda: Myriapoda: Diplopoda)

One hundred millipede species in Serbia (Arthropoda: Myriapoda: Diplopoda)

where he reported two (Latzel, 1882), and later seven (Latzel, 1884) species. Ater that, in papers about myriapods from Albania and Yugoslavia (1929) and from caves on the Balkan Peninsula (1959), Attems quoted 13 and 33 species of millipedes from Serbia, respectively. More detailed data on the distribution of this group in Serbia were given by Karl Strasser (1971). In “Catalogus Faunae Jugoslaviae” he intro- duced 47 species and subspecies of these arthro- pods. Describing new forms, the list was extended to 53 taxa by Mršić (1985) and subsequently to 70 by Ćurčić et al. (2002). he last taxonomic survey of Serbian millipede fauna was given by Makarov et al. (2004) in a monograph: “he Diplopods of Serbia, Montenegro and the Republic of Macedonia”, where they stated that 80 species of diplopods inhabit the territory of Serbia.
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A contribution to data on Mite Fauna in the Azores Islands.

A contribution to data on Mite Fauna in the Azores Islands.

The results obtained have greatly increased the number of known species on the islands, citing 22 species belonging to 5 different families, among which 13 are phytos[r]

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Evaluation of susceptibility of the ZRE1 alloy to hot cracking in conditions of forced strain

Evaluation of susceptibility of the ZRE1 alloy to hot cracking in conditions of forced strain

Nowadays, magnesium alloys are used for casting into sand moulds of huge dimensional castings, high-pressure castings and precise casings. In castings of magnesium alloys defects or inconsistencies often appear (like casting misrun, porosities and cracks) particularly in the huge dimensional castings. Such defects are mended with the use of padding and welding. The welding techniques can be applied by using weld material consisting of magnesium alloy, as well as for regeneration of alloys after excessive wear. Nevertheless, the number of the repaired castings, which were permitted for use, is not satisfactory for a profitable production. The main reasons for wear are the cracks appearing during welding in brittleness high-temperature range.
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Phytotranslocation of Fe by biodiesel plant Jatropha curcas L. grown on iron rich wasteland soil

Phytotranslocation of Fe by biodiesel plant Jatropha curcas L. grown on iron rich wasteland soil

Experiments were conducted to evaluate the plant tolerance to Fe and its phytotranslocation by Jatropha curcas L. from an iron rich wasteland soil. The soil was collected from wasteland soil (WLS) of a small town Sandila, (Hardoi, U.P.) India, and three Jatropha clones were cultivated in WLS amended or not with sand or cowdung in a ratio of 3:2. The WLS had high pH, elevated electric conductivity (EC) and was rich in organic carbon and total NPK. Iron and Mn were 2-3 folds higher than that in the normal field soil. Net root and shoot elongation as well as fresh and dry biomass of the plants were only slightly affected at 100 d in WLS as compared with that grown in non-polluted soil. Tolerance index (TI) of J. curcas was significantly higher in cowdung amended WLS in comparison to that in WLS, or WLS amended with sand. Translocation factor (TF) from the soil to plants for Fe was significantly higher in WLS than that in the normal field soil. Bio-concentration factor (BCF) and concentration index (CI) for Fe were 0.12 to 0.37, 1.0 to 6.2 respectively. The results indicate that Jatropha plantation is suitable for phytoremediation of Fe-contaminate wasteland soils, and also that these polluted fields could be used to cultivate this important biodiesel plant species.
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Length-weight and length-length relationships for rockpool fishes on the Brazilian coast

Length-weight and length-length relationships for rockpool fishes on the Brazilian coast

The rockpool fish fauna was caught at low tide using anesthetic clove oil (40 ml from anesthetic dissolved in 1000 ml of ethanol) and small hand-nets (length 150 mm; mouth 101.6 mm and mesh 3 mm). The specimens were fixed in 10% formalin, preserved in 70% alcohol and identified at the lowest taxonomic level possible (Figueiredo & Menezes 1978, 1980a, 1980b, Menezes & Figueiredo 1985, Carvalho-Filho 1999, Carpenter 2002a, 2002b, Eschmeyer et al. 2016). Specimens were measured (nearest 0.01 cm standard length, SL and total length, TL) using digital slide calipers and weighed (nearest 0.01 g total weight, TW) using a digital balance.
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Selection of the temperature of casting the bronzes to plaster moulds

Selection of the temperature of casting the bronzes to plaster moulds

dependence from the temperature of casting the bronze to the mould on Figure 6. From the introduced cross - section of casts from the probe TDAg, it results that it together with considerably grows up the depth of the contraction cavity with the growth of the temperature of casting, and what joins with this executed along its axis the volumetric contraction grows up, especially bronze B555 (Fig. 5a and 6). The bronze B10 is characterizes considerably smaller volumetric contraction (Fig. 5b and 6), however overheated 1180 °C above and cast to the hot plaster mould, in the conditions of the atmospheric pressure, it undergoes strong gassing with what considerable decrease of the depth of the contraction cavity joins (Fig. 5b 1200 ° C and Fig . 6). Zinc as high active metal in the relation of oxygen influences the lower- ing of the content of gases dissolved in the bronze B555. Consid- erably larger content Zn in the chemical composition of the bronze B555 (approx. 5%), in the comparison with the bronze B10 (to 0.5 %), it favours creation on the surface of the solidifica- tion bronze of the layer of oxides Zn and Cu, in the composition natural slags about the smaller mass density from the liquid bronze, making difficult chemical adsorption and dissolving the hydrogen and oxygen in the liquid bronze. Bronze B10 including first of all the admixture approx. 10% Sn, element of little active in the relation to oxygen, it absorbs from surroundings highly both the hydrogen as and the oxygen, what it brings in the conse- quence, together with the growth of the temperature of casting, to gassing the bronze.
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The friction influence on stress in micro extrusion

The friction influence on stress in micro extrusion

Micro extrusion is a new production method for metallic small items with two dimensions less than 1mm [1] by forming technology. Reducing sizes of manufactured objects to micro scale, some of process parameters, such as for example grain size or surface roughness remain unchanged, that cause appearing so- called size effect [2]. Top layer texture depends on sort of surface treatment which has been subjected to adaptability or obtain the intended structure. It should be also keep in mind, that its quality is related to material grain size [3]. Because of the fact, that the surface roughness is part size independent and does not decreases with miniaturization [4], numerical simulations processes should be adapted to the requirements of level micro. During the forming of small details by extruding, fundamental issue is to precise friction conditions between the material and the tool. Size effect should be considered.
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Incoming Longwave Radiation Evaluation for the Legal Amazon Using HadRM3 and Geostatistic Theoretical Models

Incoming Longwave Radiation Evaluation for the Legal Amazon Using HadRM3 and Geostatistic Theoretical Models

In Figure 2 and Table 1, the exploratory (boxplot) and descriptive (average, maximum, minimum, standard deviation, variance and coefficient of variation) analyses of incoming longwave radiation data for the IPCC A2 scenario in Legal Amazon is presented. The presence of outliers was observed for all years, with the highest averages and outliers occurring in 2090 in comparison with the other years evaluated. These high values are correlated with high Greenhouse Gas Emissions (GHG) and increasing the air temperature in the pessimistic A2 scenario adopted by the IPCC. Discrepant values found in the study showed that they behave differently in relation to that presented by the majority of values estimated by Swinbank’s (1963) equation through the HadRM3 model output. Lower average values for incoming longwave radiation were found in 2070 (394 W.m -2 .year -1 ). In the global solar radiation results
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Investigating The Use Of Mobile Computing In Zimbabwe Polytechnics Case Of A Polytechnic In Zimbabwe

Investigating The Use Of Mobile Computing In Zimbabwe Polytechnics Case Of A Polytechnic In Zimbabwe

). This shows that there has been upgrading and improvement in mobile computing device characteristics since Zimm erman’s research up to now. Dahlstrom (2012), a senior research analyst at EDUCAUSE, in his article titled ―Executive Summary: Student Mobile Computing Practices—lessons learned from Qatar‖ says that students find Mobile technology convenient and engaging and institutions need to invest more in mobile device use and support. In Qatar the Education City conducted a survey jointly with ECAR (Every Child a Reader) of United Kingdom (UK) on student mobile computing technology and the results were not only relevant to their student’s experiences but also speaks to the global revolution of mobile technology in the academic environment. The findings revealed that, for students, technology plays an important role in productivity and communication, students want technology integrated into their academic experience and students want to better utilise mobile technology in their learning environments doing such things as creating content for course assignments, accessing course related material and pushing the limits of mobile device productivity. Kim et al (2006) identified the benefits of using mobile wireless phones as freedom of location and time, increasing speed in teaching and learning, enabling one-to-one learning based on individual educational histories or test results, better communication opportunities and better collaboration in group discussions. They also identified the specific benefits of using Personal Data Assistants in m-learning as mobility, information management capacity, beaming capability, ability to work in many places and replacement of pen and paper. A UK essays website argued that the major challenge for educators and trainers is how to develop learning materials for delivery on
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Micromorphometric analysis of porosity changes in the surface crusts of three soils in the Piracicaba region, São Paulo State, Brazil

Micromorphometric analysis of porosity changes in the surface crusts of three soils in the Piracicaba region, São Paulo State, Brazil

ABSTRACT. The aim of this study was to micromorphologically analyze modifications in soil porosity due to the occurrence of erosive rainfall events. Three types of soils, Typic Hapludox, Typic Hapludult and Rhodic Kandiudalf, were analyzed to determine their total porosity and the distribution and number of pores. The soils were tilled with a heavy disk and leveling harrow to ensure homogeneity of surface conditions at the beginning of the trial period and to simulate cropping conditions. The soils were kept uncovered during the trial period, and rainfall events with intensities greater than 25 mm h -1 were recorded.
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