1,039 research outputs found

    Renal dysplasia with the ipsilateral ectopic ureter mimicking abscess of the prostate

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    Introduction. In males the ectopic ureter usualy drains into the prostate (50%). During ureteric developement a thin membrane (Chawallaā€™s membrane) separates the lumen of the ureter and the urogenital sinus at the point where the ureter joins the urogenital sinus. This membrane ruptures allowing urin to drain from the ureter to the urogenital sinus. The authors reported a case of renal dysplasia associated with ipsilateral uretral ectopia mimicking prostatic abscess. Case report. A subfebrile (37.3Ā°C), 23-year-old patient, otherwise healthy, presented with persistent ascending perineal pain non-responsive to antibiotics and analgetics. Digitorectal examination (DRE) showed asymmetric prostate with a soft, tender, buldging left lobe suggestive of prostatic abscess. The diagnosis was suspected using transrectal ultrasonography (TRUS), but the picture of the anechoic tubular structure in the left lobe of the prostate with a proximal undefined extraprostatic extension and a caudal intraprostatic blind end was incoclusive for the definitive diagnosis of prostatic abscess. Magnetic resonance imaging (MRI) was ordered and definitive diagnosis of renal dysplasia associated with the ipsilateral ectopic ureter filled with inflamed content mimicking prostatic abscess was made. Transurethral incision/minimal resection of the distal, blindly closed end of left ectopic ureter was done. Endoscopic surgical treatment was sufficient for relief of clinical symptoms. The patientā€™s recovery was uneventful. Conclusion. To the best of our knowledge, a case of renal dysplasia with the ipsilateral ectopic ureter mimicking prostate abscess has not been reported so far. Cystic pelvic malformations in males may result from too craniall sprouting of the ureteral bud, with delayed absorption and ectopic opening of the distal end of the ureter

    The effect origanum vulgare l. essential oils on weed seed germination

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    Oregano is a common name for products derived from more than 60 plant species which mostly belong to the families Lamiaceae and Verbenaceae. Within the genus Origanum, fortytwo species and forty-nine taxa (species, subspecies and varieties) divided into 10 groups were classified. The largest number comes from the Mediterranean and it is of local character. [4]. In recent years, interest for use of natural compounds in control of weed species keeps growing. Natural compounds with allelopathic effect generally represent the products of secondary metabolism and are known as allelochemicals. Allelochemicals are safer than synthetic herbicides primarily because they are biodegradable and have a minimal detrimental impact on the environment [7]. During 2016, the allelopathic effect of oregano essential oil was studied on germination of some plant species such as: rucola (Eruca sativa Mill.), onion (Alium cepa L.), kohlrabi (Brassica oleraceavar.gongylodes L.) and kale (Brassica oleracea var. sabauda, L.). Seeds of the mentioned weed species were treated with different concentrations of oregano essential oil in the amount of 200 Āµl/ml, 400 Āµl/ml, 600 Āµl/ml and 800 Āµl/ml. Distilled water was used as a control. The obtained results indicate that the increase in concentrations of the essential oil results with the reduction in germination of onion and kohlrabi plant seeds, and also with the increase in its inhibitory effects. For kale and rucola seeds a deviation in correlative inhibition of germination at a concentration of 600 Āµ/ml was established, while the average seed germination was higher than at a lower concentration of 400 Āµ/ml

    Factors influencing students' choice of fast food restaurants

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    The global expansion of fast food consumption habits and the consequent change in the competitive environment led to greater market research and the targeting of consumer groups. On the other hand, the growth of the market and the increase in the number of fast food restaurants have encouraged consumers to pay more attention to the products they consume, that is, have influenced their interest in the diversity of factors that are decisive when choosing a restaurant. This study investigates factors influencing students' choice of fast food restaurants. The study was conducted at University of Novi Sad. The results show that the most important influences on this choice are Food Quality, Nearness and Accessibility and Hygienic factors, primarily cleanliness of the restaurant, kitchen, and service personnel. Differences in fast food choice factors were found regarding the gender of respondents

    Meat quality characteristics of DurocxYorkshire, DurocxYorkshirexwild boar and wild boar

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    Chemical composition, pH value, fatty acids profile, cholesterol content, color and sensory analysis of pork meat from Duroc x Yorkshire (D x Y), Duroc x Yorkshire x wild boar (D x Y x WB) crossbreeds and wild boars (WB) was investigated. Samples for all tests were taken from m. longissimus dorsi. Chemical composition and pH value were tested by ISO methods. Fatty acid and cholesterol determination was performed by gas chromatography technique with external standard method. Color was determined instrumentally using the thristimulus colourimeter. The overall sensoric quality (appearance, texture and smell) of samples of raw meat was evaluated. In evaluation of results the scoring system was used. In chemical composition (moisture, fat, protein, ash) and pH values statistically significant difference was noted (p<0,05) between each of the examined groups. Also, among all the examined groups statistically significant difference (p<0,05) was found for fatty acids and cholesterol content. Measurment of the color of meat from all three groups showed that the L*, a * b *, Chroma and Hue angle were also statistically significantly different (p<0,01)

    Aerozagađenje polenom Ambrosia Artemisiifolia L. Na teritoriji grada Novog Sada

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    As important weed on agricultural areas, Ambrosia artemisiifolia L. represents a great problem. This weed species is also recognized as significant allergenic species, representing thus significant medical and economic problem. One gram of Ambrosia artemisiifolia L. pollen contains 30-35 million of pollen grains, and during the year, one plant can produce more than 45 grams (<1350 million) of pollen grains. During 2014 pollination season, the amount of ragweed was measured at Faculty of Agriculture. Measured pollen peaks showed that in m3 of the air there were 447 pollen grains.Izuzetan problem za poljoprivrednu proizvodnju predstavlja Ambrosia artemisiifolia L., kao korov na poljoprivrednim povrŔinama, ova korovska vrsta prepoznata je i kao značajan alergen, a samim tim predstavlja medicinski i ekonomski problem. Jedan gram polena Ambrosia artemisiifolia L. sadrži 30-35 miliona polenovih zrna, a jedna biljka tokom godine može proizvesti viŔe od 45 grama (<1350 miliona polenovih zrna) polena. U sezoni polinacije, na Poljoprivrednom fakultetu je merena količina polena ambrozije, tokom 2014. godine. Pik je izmereni krajem avgusta meseca kada je taj broj bio 447 polenovih zrna u m3 vazduha

    The influence xanthium strumarium l. extracts on maize yield

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    In several years lasting period occur great numbers of harmful organisms that cause decrease in crops yield. The most frequently occurring weed species cause great damages in agricultural crops, with potential yield loss of 34% [5]. They compete with the crops for water, space, light and nutrients and are hosts to insects and pathogens [8]. During 2014 allelopathic influence of Xanthium strumarium L. on maize yield (Zea mays L.) was studied in field conditions. Beside water extract from plant dry weight of the studied weed species, extract of methanol was also used in different concentrations. Concentrations of 0.04, 0.02, 0.01 and 0.004 g of the plant dry weight per 1 ml of solution were used. The required material was made from weed species picked up in 3-4 leaves phenophases. The reduced maize yield was established in fields in which water extracts, as well as methanol extracts were used. In comparison to untreated control variants, the reduced yield of 10.53-30.3% was established in treatments in which water extracts were applied. In relation to control plots, methanol treatments reduced yield for 20.26-36.32%

    Allelopathic effect of Xanthium strumarium L. and Abuthilon theophrasti Med. extracts on germination of maize and soybean seed

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    During 2014 allelopathic effects of Xanthium strumarium L. and Abutilon theophrasti Med. extracts to germination and initial development of maize (Zea mays L.), and soybean (Glycine max L.) were studied in laboratory conditions. In addition to the Water extracts out of dry mass of the tested weed species, extracts made by use of hexane, ethyl acetate and methanol in different concentrations were also used. The applied concentrations were 10, 20, 30 and 40 g/l of dry matter made out of weed species in the 3-4 leaf stage of development. Inhibiting effect of water extract from dry matter of X. strumarium and methanol extract from which methanol part was evaporated to maize seed epicotyls and hypocotyls length was established. In comparison to the control, the maximum concentration of 40 g / l of the extract made from Water solution of A. theophrasti showed inhibitory effect on soybean seed epicotyls and hypocotyls length. The applied extracts made out of dry matter of the both of the studied weed species X. strumarium and A. theophrasti reduced maize seed germination for 14.8-26.83% and soybean seed germination for 18.5-35.82%, in comparison to the control in which it was 95% and 92%, respectively. After germination in a climate chamber, epicotylsā€™ and hypocotylsā€™ length of maize and soybean seeds was measured three, six and ten days following spraying by extracts

    Chemical analysis and biotest in the assessment of nicosulfuron soil pollution

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    The assessment of soil pollution exposed to nicosulfuron can be conducted through chemical analysis, by determination of residue quantity, and biotests. In this research, the field dissipation study of nicosulfuron herbicide in soil under maize, was conducted in controled conditions. Nicosulfuron residue in top soil layers were determined by HPLC-DAD, while nicosulfuron extraction was performed by modified QuEChERS method. In five months period, from the first application at the manufacturerā€™s recommended concentration, until harvest, nicosulfuron concentration decreased over time from 0.95 mg/kg to 0.12 mg/kg. In order to evaluate phytotoxicity of nicosulfuron on susceptible crops, Triticum vulgare L.and Beta vulgaris L.were used as test plants. Inhibitory action of nicosulfuron on the studied species was proved on the basis of the obtained results, by studying the morphological parameters, roots and above-ground seedlings lengths (mm), i.e. length of shoot

    Allelopathic effect of Cannabis sativa L. essential oil on initial growth of Chenopodium album L.

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    Allelopathy is increasingly gaining importance due to the tendency to avoid the use of synthetic herbicides. Research is increasingly focused on the finding of plant compounds that have allelopathic properties to weed species. The aim the study is to examine the allelopathic potential of Cannabis sativa L. essential oil in relation to the initial growth of the weed species of Chenopodium album L. The essential oil was obtained by the process of distillation of dry plant material collected during the ripening phase. The concentrations of essential oil were 200, 400, 600 and 800ml/l, while distilled water was used in the control. The parameters that were studied were the length of the hypocotyl and the length of the epicotyl C. album L. All investigated concentrations of essential oil exhibited an inhibitory effect. The average length of hypocotyl C. album L. in control was 2.67cm while in the smallest concentration it was 1.9cm. The average length of epicotyl C. album L. in control was 2.7cm and in the lowest applied concentration of 1.67cm. Increasing concentrations of essential oil increased the inhibitory effect. The obtained results indicate that it is possible to use C. sativa L. essential oil as bioherbicides for the control of C. album L

    Risky Travel? Subjective vs. Objective Perceived Risks in Travel Behaviourā€”Influence of Hydro-Meteorological Hazards in South-Eastern Europe on Serbian Tourists

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    In terms of climate related security risks, the region of South-Eastern Europe (SEE) can be identified as one of the worldā€™s hot spots. As weather-related hazards continue to increase in num-bers and spatial distribution, risk perception in the tourism industry becomes even more important. Additionally, peopleā€™s perception of natural hazards is one of the key elements in their decision-making process when choosing a travel destination. Although a vast number of studies have exam-ined aspects of risk perception, an integrated approach which considers both objective and subjec-tive factors related to the tourism industry and hydro-meteorological hazards remains relatively scarce. This pioneering study inspects the causality between objective perceived risks, as well as subjective risk factors. A methodological approach and the obtained results present a certain nov-elty since the previous conceptualized Psychological Preparedness for Disaster Threat Scale (PPDTS) was applied for the first time in the tourism industry. The obtained results reveal the pres-ence of a statistically significant relationship between objective risks and certain subjective risk fac-tors (gender, age, education, prior experience, anticipation, and awareness). Therefore, this study may offer a conceptual platform for both theoretical and practical implications for enhanced ap-proaches oriented toward more qualitative risk management at a given travel destination, in regions prone to hydro-meteorological hazards
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