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Sample records for radu sluzbe pogona

  1. To the Memory of Radu Orendovici

    Science.gov (United States)

    Pesin, Ya. B.

    Radu Orendovici died in a tragic accident in mountains near Marseille-Luminy where he was invited to give a talk at the International conference "From Crystal to Chaos". He was a bright very promising graduate student who proved a number of prolific results in the theory of dynamical systems. Radu was a remarkable personality, gentle, a bit shy, but very kind and very responsible. He is survived by his wife and a child who came from Romania…

  2. IZDELAVA IGRALNEGA POGONA IN UREJEVALNIKA ZA IZDELAVO 2D IGER

    OpenAIRE

    Kerec, Bojan

    2015-01-01

    V tem magistrskem delu predstavimo postopek izdelave igralnega pogona. Nalogo začnemo z opsiom razvoja igralnih pogonov skozi čas in pregledom obstoječih rešitev. Nato podamo prednosti in slabosti izdelave lastnega igralnega pogona in ovrednotimo smotrnost izbire že obstoječega igralnega pogona. Nadaljujemo s predstavitvijo igralnega pogona, ki smo ga razvili. Predstavimo arhitekture in organizacije sistemov igralnega pogona, podamo kratek pregled implementacije najpomembnejših sistemov in ...

  3. Humor e Shoah: O trem da vida, de Radu Mihaileanu

    Directory of Open Access Journals (Sweden)

    Lyslei Nascimento

    2009-03-01

    Full Text Available Um vilarejo da Ucrânia, na Europa Oriental, no ano de 1941, é o cenário do filme O trem da vida, do diretor romeno Radu Mihaileanu. O roteiro, ao se afastar de dados históricos e de uma configuração realista da Shoah, configura-­se como uma fábula. Não é fácil fazer humor, muito menos, sobre a catástrofe. O humor presente no filme de Mihaileanu é reflexivo, expondo, com leveza, as fraturas do discurso.

  4. Jesús Raduán Pascual, los sueños de un pionero

    OpenAIRE

    Biblioteca Universitaria. Fonoteca

    2013-01-01

    Jesús Raduán Pascual fue el fundador de la emisora EAJ-12 Radio Alcoy en el año 1931. El vídeo recoge fragmentos de la entrevista que el locutor de la emisora Radio Alcoy, Lorenzo Rubio, realizó a Jesús Raduán Pascual con motivo del cincuenta aniversario de la emisora (1981).

  5. Reclassification of Eimeria pogonae Walden (2009) as Choleoeimeria pogonae comb. nov. (Apicomplexa: Eimeriidae).

    Science.gov (United States)

    Szczepaniak, Klaudiusz Oktawian; Tomczuk, Krzysztof; Lojszczyk-Szczepaniak, Anna; Lopuszynski, Wojciech

    2016-02-01

    The presented paper provides a reclassification of Eimeria pogonae from Pogona vitticeps into the correct genus Choleoeimeria. A description of exogenous and endogenous stages of biliary coccidium is given. Sporulation of the oocysts was endogenous. The mature oocysts contained four sporocysts each with two sporozoites. Oocysts were ellipsoidal in shape, with average length/width ratio 1.7 and measured 28.4 (SD1.5) × 16.8 (SD 1.5). The micropyle, residuum, and polar granules were absent from the sporulated oocysts. Ovoidal in shape, sporosysts without Steida bodies contained residuum and two elongated and boat-shaped sporozoites. The endogenous stages of the coccidia were located mainly in the epithelium of bile ducts; however, single-epithelium cells of the gallbladder were also infected.

  6. Ultrasonographic anatomy of bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Bucy, Daniel S; Guzman, David Sanchez-Migallon; Zwingenberger, Allison L

    2015-04-15

    To determine which organs can be reliably visualized ultrasonographically in bearded dragons (Pogona vitticeps), describe their normal ultrasonographic appearance, and describe an ultrasonographic technique for use with this species. Cross-sectional study. 14 healthy bearded dragons (6 females and 8 males). Bearded dragons were manually restrained in dorsal and sternal recumbency, and coelomic organs were evaluated by use of linear 7- to 15-MHz and microconvex 5- to 8-MHz transducers. Visibility, size, echogenicity, and ultrasound transducer position were assessed for each organ. Coelomic ultrasonography with both microconvex and linear ultrasound transducers allowed for visualization of the heart, pleural surface of the lungs, liver, caudal vena cava, aorta, ventral abdominal vein, gallbladder, fat bodies, gastric fundus, cecum, colon, cloaca, kidneys, and testes or ovaries in all animals. The pylorus was visualized in 12 of 14 animals. The small intestinal loops were visualized in 12 of 14 animals with the linear transducer, but could not be reliably identified with the microconvex transducer. The hemipenes were visualized in 7 of 8 males. The adrenal glands and spleen were not identified in any animal. Anechoic free coelomic fluid was present in 11 of 14 animals. Heart width, heart length, ventricular wall thickness, gastric fundus wall thickness, and height of the caudal poles of the kidneys were positively associated with body weight. Testis width was negatively associated with body weight in males. Results indicated coelomic ultrasonography is a potentially valuable imaging modality for assessment of most organs in bearded dragons and can be performed in unsedated animals.

  7. Outflows of groundwater in lakes: case study of Lake Raduńske Górne

    Directory of Open Access Journals (Sweden)

    Cieśliński Roman

    2014-12-01

    Full Text Available The aim of the study was to locate and describe groundwater outflows in a selected lake basin. The study hypothesis was based on the fact that, according to the specialist literature, one of the forms of lake water supply is through groundwater outflows. It was also assumed that the lakes of the Kashubian Lake District are characterised by such a form of lake water supply. The time scope of the work included the period from January 2011 to September 2012. The spatial scope of the work included the area of Lake Raduńskie Górne, located in the Kashubian Lake District in north Poland. The research plot was in the north-eastern part of the lake. Office works were aimed at gathering and studying source materials and maps. Cartographic materials were analysed with the use of the MapInfo Professional 9.5. The purpose of the field work was to find the groundwater outflows in the basin of Lake Raduńskie Górne. During the field research diving was carried out in the lake. During the dive audiovisual documentation was conducted using a Nikon D90 camera with Ikelite underwater housing for Nikon D90 and an Ikelite DS 161 movie substrobe, as well as a GoPro HD HERO 2 Outdoor camera. During the project, four groundwater outflows were found. In order to examine these springs audiovisual and photographic documentation was made. To systematise the typology of the discovered springs, new nomenclature was suggested, namely under-lake springs with subtypes: an under-lake slope spring and under-lake offshore spring

  8. Prostaglandins are important in thermoregulation of a reptile (Pogona vitticeps).

    OpenAIRE

    Seebacher, Frank; Franklin, Craig E.

    2003-01-01

    The effectiveness of behavioural thermoregulation in reptiles is amplified by cardiovascular responses, particularly by differential rates of heart beat in response to heating and cooling (heart-rate hysteresis). Heart-rate hysteresis is ecologically important in most lineages of ectothermic reptile, and we demonstrate that heart-rate hysteresis in the lizard Pogona vitticeps is mediated by prostaglandins. In a control treatment (administration of saline), heart rates during heating were sign...

  9. H.S.H. Prince Radu of Hohenzollern-Veringen, Special Representative of the Romanian Government for Integration, Co-operation and Sustainable Development

    CERN Multimedia

    Maximilien Brice

    2002-01-01

    H.S.H. Prince Radu of Hohenzollern-Veringen, Special Representative of the Romanian Government for Integration, Co-operation and Sustainable Development, is seen here visiting Microcosm, CERN's on-site exhibition centre. Photo 01: H.S.H. Prince Radu of Hohenzollern-Veringen (right) with his personal adviser Cornel Comsa inside Microcosm's full-scale model of a six-metre section of the LHC. Photos 04-06: H.S.H. Prince Radu of Hohenzollern-Veringen with Emma Sanders from ETT Division.

  10. Periorbital adenocarcinoma in a bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Darrow, Brett G; Johnstone McLean, Nancy S; Russman, Shirley E; Schiller, Chris A

    2013-07-01

    A 4.5-year-old female bearded dragon (Pogona vitticeps) presented for periorbital swelling affecting the left eye. A well-organized, hypoechoic mass was noted ventral and medial to the globe on ocular ultrasound. The mass continued to grow despite antibiotic therapy, and an exenteration was performed. The mass was diagnosed via histopathology and immunohistochemical staining as a probable lacrimal gland carcinoma, although a Harderian gland origin could not definitively be ruled out. The tumor recurred following removal, and the lizard died 2 months postoperatively. © 2013 American College of Veterinary Ophthalmologists.

  11. Devriesea agamarum causes dermatitis in bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Hellebuyck, Tom; Martel, An; Chiers, Koen; Haesebrouck, Freddy; Pasmans, Frank

    2009-03-02

    Devriesea agamarum is frequently isolated from dermatitis in lizards, notably from cheilitis in spiny tailed lizards (genus Uromastyx). It was the aim of the present study to assess the role of this bacterium as a causative agent of dermatitis by fulfilling Koch's postulates. First, its association with diseased lizards was demonstrated. The bacterium was isolated from several, mainly desert dwelling squamate species showing symptoms of dermatitis and/or septicaemia. The affected lizards mainly belonged to the family of the Agamidae (genera Pogona, Uromastyx, Agama) and in one case to the Iguanidae (genus Crotaphytus). Secondly, the occurrence of D. agamarum in 66 clinically healthy bearded dragons, 21 clinically healthy Uromastyx species and 40 squamate eggshells was studied. The bacterium was isolated from the oral cavity of 10 bearded dragons but from none of the healthy Uromastyx species. Hence D. agamarum was found to be part of the oral microbiota in Pogona vitticeps. Finally, bearded dragons (P. vitticeps) were experimentally inoculated with D. agamarum by direct application of a bacterial suspension on intact and abraded skin. At the scarified skin of all inoculated lizards, dermatitis was induced from which D. agamarum was re-isolated. In conclusion, D. agamarum is a facultative pathogenic bacterium, able to cause dermatitis in agamid lizards when the integrity of the skin is breached.

  12. Chemotherapeutic treatment for leukemia in a bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Jankowski, Gwen; Sirninger, Jeffrey; Borne, Jessica; Nevarez, Javier G

    2011-06-01

    A 4.5-yr-old, captive-bred, male bearded dragon (Pogona vitticeps) presented for lethargy, anorexia, and increased mucoid salivation with upper respiratory clicks. Diagnostics were declined and the bearded dragon was prescribed ceftazidime 20 mg/kg i.m. q 72 hr. The patient presented again 1 wk later with a marked monocytosis, heterophilia, and lymphocytosis, and a clinical diagnosis of chronic monocytic leukemia was made. Chemotherapy with cytosine arabinoside (100 mg/m2 over 48 hr i.v.) was initiated. Forty-four hours into the treatment the dragon became acutely unresponsive and died within 1 hr. Adverse effects as a result of i.v. cytosine arabinoside therapy were not identified despite previous reports suggestive that the drug induces renal failure.

  13. Systemic microsporidiosis in inland bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Jacobson, E R; Green, D E; Undeen, A H; Cranfield, M; Vaughn, K L

    1998-09-01

    One laboratory-hatched and -reared inland bearded dragon (Pogona vitticeps) (No. 1) and two privately owned inland bearded dragons (Nos. 2 and 3) died, showing nonspecific signs of illness. Light microscopic examination of hematoxylin and eosin-stained tissue sections from lizard No. 1 revealed severe hepatic necrosis with clusters of light basophilic intracytoplasmic microorganisms packing and distending hepatocytes and free in areas of necrosis. Similar microorganisms were within cytoplasmic vacuoles in distended renal epithelial cells, pulmonary epithelial cells, gastric mucosal epithelial cells, enterocytes, and capillary endothelial cells and ventricular ependymal cells in the brain. In lizard Nos. 2 and 3, microorganisms of similar appearance were in macrophages in granulomatous inflammation in the colon, adrenal glands, and ovaries. The microorganism was gram positive and acid fast and had a small polar granule that stained using the periodic acid-Schiff reaction. Electron microscopic examination of deparaffinized liver of lizard No. 1 revealed merogonic and sporogonic stages of a protozoan compatible with members of the phylum Microspora. This report provides the first description of microsporidiosis in bearded dragons and is only the second report of this infection in a lizard.

  14. Thermoregulation and aggregation in neonatal bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Khan, Jameel J; Richardson, Jean M L; Tattersall, Glenn J

    2010-05-11

    Ectothermic vertebrates, such as reptiles, thermoregulate behaviorally by choosing from available temperatures in their environment. As neonates, bearded dragons (Pogona vitticeps) are often observed to aggregate in vertical strata. A proximate mechanism for this behavior is the thermal advantage of heat storage (i.e., grouped lizards benefit through a decreased surface area to volume ratio), although competition for limited thermal resources, or aggregation for social reasons are alternative explanations. This study was designed to gain an understanding of how aggregation and thermoregulation interact. We observed that both isolated and grouped individuals achieved a similar level of thermoregulation (mean T(b) over trial) within a thermal gradient, but that individuals within a group had lower thermoregulatory precision. An experimental design in which light and ambient temperature (T(a)) (20 versus 30 degrees C) were altered established that a light bulb (source of heat) was a limited and valuable resource to both isolated and grouped neonatal lizards. Lizards aggregated more when the light was on at both temperatures, suggesting that individuals were equally attracted to or repelled from the heat source, depending on the ambient temperature. These data suggest aggregation occurs in neonatal bearded dragons through mutual attraction to a common resource. Further, increased variability in thermal preference occurs in groups, demonstrating the potential for agonistic behaviors to compromise optimal thermoregulation in competitive situations, potentially leading to segregation, rather than aggregation. Crown Copyright 2010. Published by Elsevier Inc. All rights reserved.

  15. Intraerythrocytic iridovirus in central bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Grosset, Claire; Wellehan, James F X; Owens, Sean D; McGraw, Sabrina; Gaffney, Patricia M; Foley, Janet; Childress, April L; Yun, Susan; Malm, Kirsten; Groff, Joseph M; Paul-Murphy, Joanne; Weber, E Scott

    2014-05-01

    Three adult central bearded dragons (Pogona vitticeps) originating from a commercial breeding facility presented with clinical signs, including anorexia, dehydration, white multifocal lesions on the dorsal aspect of the tongue, blepharospasm, and weight loss. In 1 of 3 lizards, a marked regenerative anemia was noted, and all 3 bearded dragons had erythrocytic intracytoplasmic inclusion bodies. Nine bearded dragons housed in contact also had identical, but fewer intraerythrocytic inclusions. Inclusion bodies examined by electron microscopy had particles consistent with iridoviruses. Attempts to culture the virus were unsuccessful; however, amplification and sequencing of regions of the viral DNA polymerase by polymerase chain reaction confirmed the presence of an iridovirus. One of the bearded dragons died, while the 2 others showing clinical signs were euthanized. The remaining 9 infected bearded dragons of the teaching colony were also euthanized. Postmortem examination revealed a moderate, multifocal, lymphoplasmacytic or mononuclear adenitis of the tongue in the 3 bearded dragons, and a lymphohistiocytic hepatitis with bacterial granulomas in 2 lizards. © 2014 The Author(s).

  16. Prostaglandins are important in thermoregulation of a reptile (Pogona vitticeps).

    Science.gov (United States)

    Seebacher, Frank; Franklin, Craig E

    2003-08-07

    The effectiveness of behavioural thermoregulation in reptiles is amplified by cardiovascular responses, particularly by differential rates of heart beat in response to heating and cooling (heart-rate hysteresis). Heart-rate hysteresis is ecologically important in most lineages of ectothermic reptile, and we demonstrate that heart-rate hysteresis in the lizard Pogona vitticeps is mediated by prostaglandins. In a control treatment (administration of saline), heart rates during heating were significantly faster than during cooling at any given body temperature. When cyclooxygenase 1 and 2 enzymes were inhibited, heart rates during heating were not significantly different from those during cooling. Administration of agonists showed that thromboxane B(2) did not have a significant effect on heart rate, but prostacyclin and prostaglandin F(2alpha) caused a significant increase (3.5 and 13.6 beats min(-1), respectively) in heart rate compared with control treatments. We speculate that heart-rate hysteresis evolved as a thermoregulatory mechanism that may ultimately be controlled by neurally induced stimulation of nitric oxide production, or maybe via photolytically induced production of vitamin D.

  17. Social learning by imitation in a reptile (Pogona vitticeps).

    Science.gov (United States)

    Kis, Anna; Huber, Ludwig; Wilkinson, Anna

    2015-01-01

    The ability to learn through imitation is thought to be the basis of cultural transmission and was long considered a distinctive characteristic of humans. There is now evidence that both mammals and birds are capable of imitation. However, nothing is known about these abilities in the third amniotic class-reptiles. Here, we use a bidirectional control procedure to show that a reptile species, the bearded dragon (Pogona vitticeps), is capable of social learning that cannot be explained by simple mechanisms such as local enhancement or goal emulation. Subjects in the experimental group opened a trap door to the side that had been demonstrated, while subjects in the ghost control group, who observed the door move without the intervention of a conspecific, were unsuccessful. This, together with differences in behaviour between experimental and control groups, provides compelling evidence that reptiles possess cognitive abilities that are comparable to those observed in mammals and birds and suggests that learning by imitation is likely to be based on ancient mechanisms.

  18. Encephalitozoonosis in two inland bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Richter, B; Csokai, J; Graner, I; Eisenberg, T; Pantchev, N; Eskens, H U; Nedorost, N

    2013-02-01

    Microsporidiosis is reported rarely in reptiles. Sporadic multisystemic granulomatous disease of captive bearded dragons (Pogona vitticeps) has been associated with microsporidia showing Encephalitozoon-like morphology. Two such cases are described herein. Both animals displayed clinical signs suggestive of renal failure. Necropsy examination revealed granulomatous lesions in the liver and adrenal area in both animals, and in several other organs in one animal. The lesions were associated with intracellular protozoa consistent with microsporidia. Ultrastructural examination of the organisms revealed morphology similar to Encephalitozoon spp. Immunohistochemistry and chromogenic in-situ hybridization for Encephalitozoon cuniculi were positive in both animals. Nucleotide sequencing of the partial small subunit ribosomal RNA gene and the complete internal transcribed spacer (ITS) region revealed high similarity with published E. cuniculi sequences in both animals. However, the ITS region showed a GTTT-repeat pattern distinct from mammalian E. cuniculi strains. This may be a novel E. cuniculi strain associated with multisystemic granulomatous disease in bearded dragons. Copyright © 2012 Elsevier Ltd. All rights reserved.

  19. Morphological and molecular characterization of Choleoeimeria pogonae n. sp. coccidian parasite (Apicomplexa: Eimeriidae, 1989, Paperna and Landsberg) in a western bearded dragon (Pogona minor minor).

    Science.gov (United States)

    Yang, Rongchang; Brice, Belinda; Ryan, Una

    2016-01-01

    A new species, Choleoeimeria pogonae n. sp. is described from a Western bearded dragon (Pogona minor minor) in Western Australia. Sporulated oocysts (n = 48) were cylindroidal in shape. Oocyst length, 27.0 (26.0-28.3) μm, oocyst width, 15.2 (14.0-16.5) μm, oocyst length/width ratio (L/W) 1.8 (1.6-1.9), each with 4 sporocysts (Eimeria-like) and a polar granule, but lacking a micropyle and oocyst residuum. Sporocysts are ovoidal in shape, sporocyst length, 10.0 (9.0-11.0) μm, sporocyst width 8.5 (7.0-9.5) μm, sporocyst L/W ratio, 1.2 (1.1-1.3). Stieda, substieda and parasubstieda bodies were all absent. Molecular analysis was conducted at the 18S rRNA and cytochrome c oxidase I (COI) loci. Phylogenetic analysis of 18S sequences revealed that C. pogonae n. sp. grouped together with another four Choleoeimeria spp. and exhibited 99.1%-99.4% genetic similarity. At the COI locus, C. pogonae n. sp. was in an independent clade and had the highest similarity (80.4%) to Eimeria cf. mivati from a chicken (Gallus gallus domesticus). According to the morphological and molecular data, this isolate is a new species of coccidian parasite. This study further supports the taxonomy of Choleoeimeria spp. as a new genus based on molecular phylogenetic analysis. Crown Copyright © 2015. Published by Elsevier Inc. All rights reserved.

  20. Establishing a New Species Encephalitozoon pogonae for the Microsporidian Parasite of Inland Bearded Dragon Pogona vitticeps Ahl 1927 (Reptilia, Squamata, Agamidae).

    Science.gov (United States)

    Sokolova, Yuliya Y; Sakaguchi, Kanako; Paulsen, Daniel B

    2016-07-01

    The microsporidium parasitizing Inland Bearded Dragons Pogona vitticeps, and developing primarily in macrophages within foci of granulomatous inflammation of different organs, is described as a new species Encephalitozoon pogonae. Establishing the new species was based on sequencing the ITS-SSUrDNA region of the ribosomal gene and consequent SSUrDNA-inferred phylogenetic analyses, as well as on comparison of pathogenesis, host specificity, and ultrastructure among Encephalitozoon species and isolates. The new species is closely related to E. lacertae and E. cuniculi. Analysis of the literature suggests that this microsporidium has been reported previously as an unidentified microsporidian species or isolate of E. cuniculi and may represent a common infection in bearded dragons. All stages of E. pogonae develop in parasitophorous vacuoles. Uninucleate spores on methanol-fixed smears measured 2.1 × 1.1 μm, range 1.7-2.6 × 0.9-1.7 μm; on ultrathin sections spores measured 0.8-1.1 × 1.8-2.2 μm. Ultrastructural study revealed 3-6 polar filament coils, a mushroom-shaped polar disk, and a polar sac embracing half of the volume occupied by the lamellar polaroplast. In activated spores, polar filament everted eccentrically. The overall morphology and intracellular development of E. pogonae were similar to other Encepahalitozoon spp. We also review the existing data on microsporidia infecting reptiles. © 2016 The Author(s) Journal of Eukaryotic Microbiology © 2016 International Society of Protistologists.

  1. The diet of free-roaming Australian Central Bearded Dragons (Pogona vitticeps)

    NARCIS (Netherlands)

    Oonincx, D.G.A.B.; Leeuwen, van J.P.; Hendriks, W.H.; Poel, van der A.F.B.

    2015-01-01

    The central bearded dragon (Pogona vitticeps) is one of the most popular pet lizards. However, little is known regarding their nutrient requirement, or their natural diet. Therefore, the stomach contents of 14 free-roaming P. vitticeps were determined by flushing. These stomach contents were

  2. Diagnosis and treatment of a periocular myxosarcoma in a bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Gardhouse, Sara; Eshar, David; Lee-Chow, Bridget; Foster, Robert A; Ingrao, Joelle C; Poirier, Valerie J

    2014-07-01

    A 5-year-old male Australian bearded dragon (Pogona vitticeps) was presented with a 2-month history of a periocular mass. The clinical evaluation included a physical examination, hematology, biochemistry, and radiographs. The mass was treated surgically and diagnosed as myxosarcoma. Strontium-90 plesiotherapy was attempted, but the mass recurred 5 mo later.

  3. H.S.H. Prince Radu of Hohenzollern-Veringen, Special Representative of the Romanian Government for Integration, Co-operation and Sustainable Development

    CERN Multimedia

    Maximilien Brice

    2002-01-01

    H.S.H. Prince Radu of Hohenzollern-Veringen, Special Representative of the Romanian Government for Integration, Co-operation and Sustainable Development (third from left) with (left to right) Florian Ciolacu (Romanian Mission in Geneva), Cornel Comsa (personal adviser to the Prince), Sorin Ilie (CERN), Calin Alexa (ATLAS), Iosif Legrand (Caltech/CMS), Mihaela Gheata (ALICE), Andrei Gheata (ALICE), and Sorin Zgura (ALICE).

  4. Thermoregulatory consequences of salt loading in the lizard Pogona vitticeps.

    Science.gov (United States)

    Scarpellini, Carolina da Silveira; Bícego, Kênia C; Tattersall, Glenn J

    2015-04-15

    Previous research has demonstrated that dehydration increases the threshold temperature for panting and decreases the thermal preference of lizards. Conversely, it is unknown whether thermoregulatory responses such as shuttling and gaping are similarly influenced. Shuttling, as an active behavioural response, is considered one of the most effective thermoregulatory behaviours, whereas gaping has been proposed to be involved in preventing brain over-heating in lizards. In this study we examined the effect of salt loading, a proxy for increased plasma osmolality, on shuttling and gaping in Pogona vitticeps. Then, we determined the upper and lower escape ambient temperatures (UETa and LETa), the percentage of time spent gaping, the metabolic rate (V̇O2 ), the evaporative water loss (EWL) during gaping and non-gaping intervals and the evaporative effectiveness (EWL/V̇O2 ) of gaping. All experiments were performed under isotonic (154 mmol l(-1)) and hypertonic saline injections (625, 1250 or 2500 mmol l(-1)). Only the highest concentration of hypertonic saline altered the UETa and LETa, but this effect appeared to be the result of diminishing the animal's propensity to move, instead of any direct reduction in thermoregulatory set-points. Nevertheless, the percentage of time spent gaping was proportionally reduced according to the saline concentration; V̇O2 was also decreased after salt loading. Thermographic images revealed lower head than body surface temperatures during gaping; however this difference was inhibited after salt loading. Our data suggest that EWL/V̇O2 is raised during gaping, possibly contributing to an increase in heat transfer away from the lizard, and playing a role in head or brain cooling. © 2015. Published by The Company of Biologists Ltd.

  5. Gastric neuroendocrine carcinomas in bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Ritter, J M; Garner, M M; Chilton, J A; Jacobson, E R; Kiupel, M

    2009-11-01

    This article describes a newly recognized highly malignant neoplastic entity in young bearded dragons (Pogona vitticeps), gastric neuroendocrine carcinomas, which readily metastasize. Ten bearded dragons with histories of anorexia (8), vomiting (3), hyperglycemia (2), and anemia (3) were included in this study. All animals had neoplastic masses in their stomach, with metastasis to the liver. Microscopically, 6 of these neuroendocrine carcinomas were well-differentiated and 4 were poorly differentiated. For further characterization, immunohistochemistry for protein gene product 9.5, neuron-specific enolase, endorphin, chromogranins A and B, synaptophysin, somatostatin, insulin, glucagon, gastrin, pancreatic polypeptide, and vasoactive intestinal peptide was performed on 5 animals. Because only immunolabeling for somatostatin was consistently observed in all neoplasms, a diagnosis of somatostatinoma was made for these 5 bearded dragons. Some neoplasms also exhibited multihormonal expression. Electron microscopy performed on 1 tumor confirmed the presence of neuroendocrine granules within neoplastic cells. Gastric neuroendocrine carcinomas, and specifically somatostatinomas, have not been previously reported in bearded dragons, or other reptiles, and may be underdiagnosed due to inconsistent, ambiguous clinical signs. In humans, pancreatic somatostatinomas are associated with a syndrome of hypersomatostatinemia, which includes hyperglycemia, weight loss, and anemia, as observed in some of these bearded dragons. Somatostatinomas in humans are commonly associated with neurofibromatosis type 1 (Von Recklinghausen's disease), caused by a mutation in the tumor suppressor gene NF1, which results in decreased expression of neurofibromin. In all 5 animals examined, neoplasms exhibited decreased neurofibromin expression compared with control tissues, suggesting that decreased functional neurofibromin may play a role in the pathogenesis of somatostatinomas in bearded dragons.

  6. Španjolski stručnjaci u Ciudad de Méxicu: priče o radu i tržištu rada

    OpenAIRE

    Mendoza, Cristóbal; Ortiz Guitart, Anna

    2008-01-01

    U radu se istražuju radna iskustva skupine kvalificiranih španjolskih migranata u Ciudad de Méxicu uporabom kvalitativnih podataka. Među intervjuiranim Španjolcima identificiraju se dva tipa migranata: premještenici unutar TNC-a (transnacionalnih korporacija) i »migranti u sredini« (»oni koji nisu ni niskokvalificirani ni visokokvalificirani migranti«; Conradson i Latham, 2005a). To donekle dovodi u pitanje pretpostavke o kvalificiranim radnicima pokazujući mnogostruke radne putanje te iskust...

  7. Atherosclerosis associated with pericardial effusion in a central bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Schilliger, Lionel; Lemberger, Karin; Chai, Norin; Bourgeois, Aude; Charpentier, Maud

    2010-09-01

    Atherosclerosis is a common disease in pet birds, particularly in psittacines, and is frequently found when performing postmortem examinations on adult and old dogs, in which it is mainly associated with endocrine diseases, such as hypothyroidism and diabetes mellitus. However, atherosclerosis is poorly documented in reptiles and consequently poorly understood. In the current case report, atherosclerosis and pericardial effusion were diagnosed in a 2-year-old male central bearded dragon (Pogona vitticeps) based on ultrasound visualization, necropsy, and histologic examination.

  8. Discovery of the butenyl-spinosyn insecticides: novel macrolides from the new bacterial strain Saccharopolyspora pogona.

    Science.gov (United States)

    Lewer, Paul; Hahn, Donald R; Karr, Laura L; Duebelbeis, Dennis O; Gilbert, Jeffrey R; Crouse, Gary D; Worden, Thomas; Sparks, Thomas C; Edwards, Pat McKamey Rex; Graupner, Paul R

    2009-06-15

    A new bacterium, Saccharopolyspora pogona (NRRL30141) was discovered which produced a series of very potent insecticidal compounds structurally related to the 'classical' (i.e., C-21-ethyl) spinosyns. A series of fermentations gave sufficient extract to allow the isolation and characterization of a total of 31 new metabolites. The majority of these compounds contained a but-1-enyl group at C-21 of the macrolide in place of the ethyl group in the 'classical' spinosyn series, corresponding to an additional acetate group incorporated during their biosynthesis. Additionally a variety of other new functionality was seen including hydroxylations, several novel forosamine sugar replacements, and a novel 14-membered macrolide ring analog.

  9. Blood vitamin D(3) metabolite concentrations of adult female bearded dragons (Pogona vitticeps) remain stable after ceasing UVb exposure

    NARCIS (Netherlands)

    Oonincx, D G A B; van de Wal, M D; Bosch, G; Stumpel, J B G; Heijboer, A C; van Leeuwen, J P T M; Hendriks, W H; Kik, M

    2013-01-01

    Vitamin D deficiency can lead to several health problems collectively called metabolic bone disease (MBD). One commonly kept reptile species prone to develop MBD if managed incorrectly is the bearded dragon (Pogona vitticeps). This study aimed to determine the extent to which adult female bearded dr

  10. Blood vitamin D(3) metabolite concentrations of adult female bearded dragons (Pogona vitticeps) remain stable after ceasing UVb exposure

    NARCIS (Netherlands)

    Oonincx, D G A B; van de Wal, M D; Bosch, Guido; Stumpel, J B G; Heijboer, A C; van Leeuwen, J P T M; Hendriks, W H|info:eu-repo/dai/nl/298620936; Kik, M|info:eu-repo/dai/nl/080432565

    Vitamin D deficiency can lead to several health problems collectively called metabolic bone disease (MBD). One commonly kept reptile species prone to develop MBD if managed incorrectly is the bearded dragon (Pogona vitticeps). This study aimed to determine the extent to which adult female bearded

  11. Blood vitamin D(3) metabolite concentrations of adult female bearded dragons (Pogona vitticeps) remain stable after ceasing UVb exposure

    NARCIS (Netherlands)

    Oonincx, D.G.A.B.; Wal, van de M.D.; Bosch, G.; Stumpel, J.B.G.; Heijboer, A.C.; Leeuwen, van J.P.T.M.; Hendriks, W.H.; Kik, M.

    2013-01-01

    Vitamin D deficiency can lead to several health problems collectively called metabolic bone disease (MBD). One commonly kept reptile species prone to develop MBD if managed incorrectly is the bearded dragon (Pogona vitticeps). This study aimed to determine the extent to which adult female bearded

  12. Static osteogenesis does not precede dynamic osteogenesis in periosteal ossification of Pleurodeles (Caudata, Amphibia) and Pogona (Squamata, Lepidosauria).

    Science.gov (United States)

    Cubo, Jorge; Hui, Mylaine; Clarac, François; Quilhac, Alexandra

    2017-05-01

    Two successive mechanisms have been described in perichondral ossification: (1) in static osteogenesis, mesenchymal cells differentiate into stationary osteoblasts oriented randomly, which differentiate into osteocytes in the same site; (2) in dynamic osteogenesis, mesenchymal cells differentiate into osteoblasts that are all oriented in the same direction and move back as they secrete collagen fibers. This study is aimed at testing the hypothesis that the ontogenetic sequence static then dynamic osteogenesis observed in the chicken and in the rabbit is homologous and was acquired by the last common ancestor of amniotes or at a more inclusive node. For this we analyze the developmental patterns of Pleurodeles (Caudata, Amphibia) and those of the lizard Pogona (Squamata, Lepidosauria). We processed Pleurodeles larvae and Pogona embryos, prepared thin and ultrathin sections of appendicular bones, and analyzed them using light and transmission electron microscopy. We show that static osteogenesis does not precede dynamic osteogenesis in periosteal ossification of Pleurodeles and Pogona. Therefore, the null hypothesis is rejected and according to the parsimony method the ontogenetic sequence observed in the chicken and in the rabbit are convergent. In Pleurodeles and Pogona dynamic osteogenesis occur without a previous rigid mineralized framework, whereas in the chicken and in the rabbit dynamic osteogenesis seems to take place over a mineralized support whether bone (in perichondral ossification) or calcified cartilage (in endochondral ossification). Interestingly, in typical dynamic osteogenesis, osteoblasts show an axis (basal nucleus-distal endoplasmic reticulum) perpendicular to the front of secreted unmineralized bone matrix, whereas in Pleurodeles and Pogona this axis is parallel to the bone matrix. © 2017 Wiley Periodicals, Inc.

  13. A description of Isospora amphiboluri (Apicomplexa: Eimeriidae) from the inland bearded dragon, Pogona vitticeps (Sauria: Agamidae).

    Science.gov (United States)

    McAllister, C T; Upton, S J; Jacobson, E R; Kopit, W

    1995-04-01

    Fecal samples from 50 captive inland bearded dragons, Pogona vitticeps (Ahl, 1926), bred in California, were examined for coccidian parasites. Sixteen (32%) of the lizards were found to be passing oocysts of Isospora amphiboluri Cannon, 1967, previously described from bearded dragons Pogona barbata (Cuvier, 1829) from Australia. Sporulated oocytes were spherical to subspherical, 25.3 x 25.1 (23-26 x 23-26) microns, with a shape index (length/width) of 1.0 (1.0-1.1). A micropyle, oocyst residuum, and polar granule were absent. Sporocyts were ovoidal, 17.0 x 11.4 (16-18 x 11-12) microns, with a shape index of 1.5 (1.4-1.7). A sporocyst residuum, Stieda, and substieda bodies were present, but parastieda bodies were absent. Sporozoites were elongated, 13.9 x 3.5 (12-15 x 3-4) microns in situ, containing spherical anterior and posterior refractile bodies. The occurrence of I. amphiboluri in P. vitticeps is a new host and geographic record for the parasite. Photomicrographs of the oocysts and endogenous life cycle stages of I. amphiboluri are presented for the first time.

  14. Factors affecting opening and filling pressures in the lungs of the lizard Pogona vitticeps.

    Science.gov (United States)

    Wood, P G; Daniels, C B

    1996-02-01

    We have previously reported that levels of pulmonary surfactant in the lungs of the lizard Pogona vitticeps increase with increasing body temperature. Static lung compliance decreases with increasing body temperature, and is only marginally affected by the presence of surfactant. Here, we examined the effects of surfactant, temperature, ventilatory pattern and autonomic neurotransmitters on opening and filling pressures. Isolated lungs were ventilated at either 18 or 37 degrees C at low, intermediate and high ventilatory regimes. The effects of acetylcholine and adrenaline were examined using an isolated perfused lung preparation at 27 degrees C. Changing ventilatory pattern or experimental temperature had no effect on either filling or opening pressures. Removal of surfactant increased both opening and filling pressures. Adrenaline administration reduced opening and filling pressures. Normal variations in surfactant levels, which occur with changes in body temperature, do not affect either opening or filling pressures. A critical amount of surfactant may be necessary to prevent adhesion of epithelial surfaces in the lungs of Pogona vitticeps. The anti-glue function of pulmonary surfactant may be more important at 18 than at 37 degrees C.

  15. [Myocardiosis in a 6-month-old Lawson's Dragon (Pogona henrylawsonii)].

    Science.gov (United States)

    Günther, P; Wohlsein, P; Junginger, J; Dziallas, P; Fehr, M; Mathes, K

    2013-01-01

    In a 6-month-old, chronically inappetent Lawsons's Dragon (Pogona henrylawsonii) with stunted growth a hyperdense cardiac region was found using radiology and computed tomography. At necropsy a profound necrosis of the myocardium with dystrophic calcification was diagnosed. In contrast to the frequently seen metastatic mineralisation of soft tissues, mainly due to poor husbandry, primary tissue destruction is the cause for dystrophic calcification. In reptiles, this is a rarely described form of calcification. Possible causes are infectious processes, nutritional or metabolic insufficiencies, intoxications or genetic components. In the presented case the aetiology could not be determined. In conclusion, dystrophic calcifications should be considered as a differential diagnosis in reptiles with soft tissue mineralisation.

  16. Establishment of an agamid cell line and isolation of adenoviruses from central bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Ball, Inna; Hoferer, Marc; Marschang, Rachel E

    2014-03-01

    A cell line was established from whole 6-8-week-old central bearded dragon (Pogona vitticeps) embryos. Cells were mid-sized and showed an elongated and polymorphic form. The cell line grew in a monolayer and has been serially passaged for 17 passages at time of publication. This cell line has been used with samples from adenovirus polymerase chain reaction (PCR)-positive bearded dragons, and 2 virus isolates have been obtained so far. The isolates show a clear cytopathic effect in inoculated cells. Both virus isolates have been serially passaged on this cell line, and have been identified by PCR amplification and sequencing of a portion of the DNA-dependent DNA polymerase gene and show 100% nucleotide identity to the corresponding region of an agamid adenovirus. Electron microscopic examination of supernatant from infected cells demonstrated the presence of nonenveloped particles, with a diameter of approximately 80 nm in both virus isolates.

  17. Dermatomycosis in three central bearded dragons (Pogona vitticeps) associated with Nannizziopsis chlamydospora.

    Science.gov (United States)

    Schmidt-Ukaj, Silvana; Loncaric, Igor; Spergser, Joachim; Richter, Barbara; Hochleithner, Manfred

    2016-05-01

    Chronic dermatomycosis was identified in 3 central bearded dragons (Pogona vitticeps), held as companion animals by the same owner. Clinical signs of dermatomycosis included subcutaneous masses as well as crusty, erosive, and ulcerative skin lesions. The facial region was affected in 2 of the 3 cases. Masses were surgically excised, and histology confirmed necrotizing and granulomatous inflammatory processes associated with fungal hyphae. Two of the bearded dragons were euthanized because of their deteriorating condition. In both cases, postmortem histology confirmed systemic fungal infections despite treatment of 1 animal with itraconazole. In the third bearded dragon, therapy with voriconazole at 10 mg/kg was initially effective, but mycotic lesions reappeared 15 months later. Nannizziopsis chlamydospora was identified by PCR and subsequent DNA sequencing in 2 of these cases. © 2016 The Author(s).

  18. Isolation of a variant Porphyromonas sp. from polymicrobial infections in central bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Bemis, David A; Greenacre, Cheryl B; Bryant, Mary Jean; Jones, Rebekah D; Kania, Stephen A

    2011-01-01

    Isolates of gram-negative anaerobic bacteria from reptiles have only occasionally been identified to the genus and species level in the veterinary medical literature. In particular, reports identifying Porphyromonas spp. from infections in reptiles are scarce. The present report describes unique Porphyromonas isolates obtained from necrosuppurative infections in central bearded dragons (Pogona vitticeps). The isolates grew in the presence of oxygen, were strongly hemolytic, and did not produce detectable black, iron porphyrin pigment. Biochemical identification kit numeric biocodes gave high but unreliable probabilities (>99.9%) for identification as Porphyromonas gingivalis. Partial 16S ribosomal RNA gene sequences of the isolates were identical to each other and shared 91% identity with those of Porphyromonas gulae. The isolates may represent a new reptile-associated Porphyromonas species.

  19. A gastric neuroendocrine carcinoma expressing somatostatin in a bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Lyons, Jeremiah A; Newman, Shelley J; Greenacre, Cheryl B; Dunlap, John

    2010-03-01

    A metastatic gastric neuroendocrine carcinoma in a 2.5-year-old inland bearded dragon (Pogona vitticeps) with a chronic history of anorexia, weight loss, depression, and acute melena is described. Histologic examination of the gastric mass revealed a densely cellular tumor arranged in nests and occasional rosettes of hyperchromatic cells with oval to spindle-shaped nuclei and minimal cytoplasm; the tumor was supported by a moderate fibrovascular stroma. Similar cells invaded through the gastric mucosa, and there were multiple hepatic metastases. The neoplastic cells were weakly immunopositive for neuron-specific enolase and moderately positive for somatostatin but were negative for chromogranin AB and gastrin. Ultrastructural studies revealed scattered neurosecretory granules in the neoplastic cells, confirming the diagnosis of a neuroendocrine carcinoma.

  20. Systemic adenovirus infection in Bearded Dragons (Pogona vitticeps): histological, ultrastructural and molecular findings.

    Science.gov (United States)

    Moormann, S; Seehusen, F; Reckling, D; Kilwinski, J; Puff, C; Elhensheri, M; Wohlsein, P; Peters, M

    2009-07-01

    Three Inland Bearded Dragons (Pogona vitticeps) from two breeding groups were humanely destroyed following a period of anorexia. Two of the animals were 8-months old and related and one animal was approximately 2-weeks old. Necropsy examination revealed poor bodily condition but no other gross abnormalities. Microscopically there was non-suppurative hepatitis and interstitial nephritis. Multiple large, amphophilic, intranuclear inclusion bodies were present within hepatocytes and epithelial cells of the bile ducts, renal tubules, small and large intestinal mucosa, pancreatic acini and oral mucous membranes. Transmission electron microscopy (TEM) demonstrated that the inclusions comprised viral particles with morphology consistent with an adenovirus. A fragment of the adenoviral polymerase gene was amplified, sequenced and compared with other reptilian adenoviral sequences.

  1. Morphology and fibre-type distribution in the tongue of the Pogona vitticeps lizard (Iguania, Agamidae).

    Science.gov (United States)

    Zghikh, Leïla-Nastasia; Vangysel, Emilie; Nonclercq, Denis; Legrand, Alexandre; Blairon, Bernard; Berri, Cécile; Bordeau, Thierry; Rémy, Christophe; Burtéa, Carmen; Montuelle, Stéphane J; Bels, Vincent

    2014-10-01

    Agamid lizards use tongue prehension for capturing all types of prey. The purpose of this study was to investigate the functional relationship between tongue structure, both surface and musculature, and function during prey capture in Pogona vitticeps. The lack of a detailed description of the distribution of fibre-types in the tongue muscles in some iguanian lizards has hindered the understanding of the functional morphology of the lizard tongue. Three methodological approaches were used to fill this gap. First, morphological analyses were performed (i) on the tongue surface through scanning electron microscopy, and (ii) on the lingual muscle by histological coloration and histochemistry to identify fibre-typing. Secondly, kinematics of prey capture was quantified by using high-speed video recordings to determine the movement capabilities of the tongue. Finally, electromyography (EMG) was used to identify the motor pattern tongue muscles during prey capture. Morphological and functional data were combined to discuss the functional morphology of the tongue in agamid lizards, in relation to their diet. During tongue protraction, M. genioglossus contracts 420 ± 96 ms before tongue-prey contact. Subsequently, Mm. verticalis and hyoglossus contract throughout tongue protraction and retraction. Significant differences are found between the timing of activity of the protractor muscles between omnivorous agamids (Pogona sp., this study) and insectivorous species (Agama sp.), despite similar tongue and jaw kinematics. The data confirm that specialisation toward a diet which includes more vegetal materials is associated with significant changes in tongue morphology and function. Histoenzymology demonstrates that protractor and retractor muscles differ in fibre composition. The proportion of fast glycolytic fibres is significantly higher in the M. hyoglossus (retractor muscle) than in the M. genioglossus (protractor muscle), and this difference is proposed to be associated

  2. Nannizziopsis guarroi infection in 2 Inland Bearded Dragons (Pogona vitticeps): clinical, cytologic, histologic, and ultrastructural aspects.

    Science.gov (United States)

    Le Donne, Viviana; Crossland, Nicholas; Brandão, João; Sokolova, Yuliya; Fowlkes, Natalie; Nevarez, Javier G; Langohr, Ingeborg M; Gaunt, Stephen D

    2016-06-01

    Chrysosporium-related infections have been increasingly reported in reptiles over the last 2 decades. In this report, we describe clinical, cytologic, histopathologic, and ultrastructural aspects of Chrysosporium-related infection in 2 Inland Bearded Dragons (Pogona vitticeps). Case 1 was presented for an enlarging raised lesion over the left eye and multiple additional masses over the dorsum. Case 2 was submitted to necropsy by the referring veterinarian for suspected yellow fungus disease. Impression smears of the nodules in case 1 revealed granulomatous to pyogranulomatous inflammation and many septate, variably long, 4-10 μm wide, often undulated hyphae, and very rare conidia. Postmortem impression smears of the superficial lesions of case 2 contained large numbers of solitary conidia and arthroconidia and low numbers of hyphae with similar morphology to case 1. Histopathology of the 2 cases revealed severe, multifocal, chronic, ulcerative, nodular pyogranulomatous dermatitis, with myriad intralesional septate hyphae, and arthroconidia. Fungal culture and molecular sequencing in both cases indicated infection with Nannizziopsis guarroi. © 2016 American Society for Veterinary Clinical Pathology.

  3. Coinfection of a bearded dragon, Pogona vitticeps, with adenovirus- and dependovirus-like viruses.

    Science.gov (United States)

    Jacobson, E R; Kopit, W; Kennedy, F A; Funk, R S

    1996-05-01

    Four neonate bearded dragons, Pogona vitticeps, from two collections became ill and died. Multiple tissues were collected and processed for light microscopy. In hematoxylin and eosin-stained sections of liver of one lizard, numerous basophilic intranuclear inclusions were observed. In three lizards, intranuclear inclusions were primarily seen within enterocytes in the small intestine. A portion of paraffin-embedded liver of one lizard and small intestine of a second lizard were removed, deparaffinized, and examined by electron microscopy. For the most part, inclusions in the liver consisted of nonenveloped viral particles 60-66 nm in diameter. Smaller nonenveloped virions 15-17 nm in diameter were occasionally seen in association with these particles. In the intestine, inclusions consisted only of 60-70 nm particles. Based on morphology and location, the larger particles were consistent with an adenovirus. Based on size and presence within nuclei of host cells coinfected with the adenovirus-like virus, the smaller viral agent was consistent with members of the genus Dependovirus.

  4. Mitochondrial genome of Pogona vitticepes (Reptilia; Agamidae): control region duplication and the origin of Australasian agamids.

    Science.gov (United States)

    Amer, Sayed A M; Kumazawa, Yoshinori

    2005-02-14

    The complete mitochondrial DNA sequence for an Australian agamid Pogona vitticepes was determined. Twenty-two tRNA genes, two rRNA genes, thirteen protein-coding genes, and two control regions were identified in this mitochondrial genome. The second control region was inserted between NADH dehydrogenase subunits 5 and 6 genes. The duplication of the control region was found in all Australasian agamids examined and was not found in other Asian or African taxa. The two control regions had nearly identical sequences within species but they were divergent among species, suggesting their concerted sequence evolution. Phylogenetic analyses including divergence time estimation without assuming the molecular clock suggested that the duplication of the control region occurred on a lineage leading to the Australasian agamids 25-45 million years ago after their divergence from a Southeast Asian Physignathus cocincinus. Our finding thus supports the recent dispersal origin of Australasian agamids in connection with plate tectonic movement of Australia to the proximity of Southeast Asia.

  5. Hypoxia progressively lowers thermal gaping thresholds in bearded dragons, Pogona vitticeps.

    Science.gov (United States)

    Tattersall, Glenn J; Gerlach, Rebecca M

    2005-09-01

    Most animals, including reptiles, lower body temperature (Tb) under hypoxic conditions. Numerous physiological and behavioural traits significant to the regulation of Tb are altered by hypoxia in ways that suggest an orchestrated adjustment of Tb at a new and lower regulated level. We examined this matter in bearded dragons, Pogona vitticeps, a species of reptile that naturally exhibits open mouth gaping at high temperatures, presumably in order to promote evaporation and thus prevent or avoid further increases in Tb. The threshold for the onset of gaping (assessed as the temperature at which lizards spent 50% of their time gaping) was reduced from 36.9 degrees C in normoxia to 35.5 degrees C at 10% and 34.3 degrees C at 6% O2. The overall magnitude or degree of gaping, measured qualitatively, was more pronounced at lower temperatures in hypoxia. Females consistently had lower gaping threshold temperatures than did males, and this difference was retained throughout exposure to hypoxia. In addition to gaping, evaporative water loss from the cloaca may also play a significant role in temperature regulation, since the ambient temperature at which cloacal discharge occurred was also reduced significantly in hypoxia. The results reported herein strongly support the view that hypoxia reduces temperature set-point in lizards and that such changes are coordinated by specific behavioural thermoeffectors that modulate evaporative water loss and thus facilitate a high potential for controlling or modifying Tb.

  6. Measurement of intraocular pressure in healthy unanesthetized inland bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Schuster, Eva J; Strueve, Julia; Fehr, Michael J; Mathes, Karina A

    2015-06-01

    To evaluate the use of rebound and applanation tonometry for the measurement of intraocular pressure (IOP) and to assess diurnal variations in and the effect of topical anesthesia on the IOP of healthy inland bearded dragons (Pogona vitticeps). 56 bearded dragons from 4 months to 11 years old. For each animal following an initial ophthalmic examination, 3 IOP measurements were obtained on each eye between 9 AM and 10 AM, 1 PM and 2 PM, and 5 PM and 7 PM by use of rebound and applanation tonometry. An additional measurement was obtained by rebound tonometry for each eye in the evening following the application of a topical anesthetic to evaluate changes in the tolerance of the animals to the tonometer. Descriptive data were generated, and the effects of sex, time of day, and topical anesthesia on IOP were evaluated. Bearded dragons did not tolerate applanation tonometry even following topical anesthesia. Median daily IOP as determined by rebound tonometry was 6.16 mm Hg (95% confidence interval, 5.61 to 6.44 mm Hg). The IOP did not differ significantly between the right and left eyes. The IOP was highest in the morning, which indicated that the IOP in this species undergoes diurnal variations. Topical anesthesia did not significantly affect IOP, but it did improve the compliance for all subjects. Results indicated that rebound tonometry, but not applanation tonometry, was appropriate for measurement of IOP in bearded dragons. These findings provided preliminary guidelines for IOP measurement and ophthalmic evaluation in bearded dragons.

  7. Lateralized eye use towards video stimuli in bearded dragons (Pogona vitticeps

    Directory of Open Access Journals (Sweden)

    Anna Frohnwieser

    2017-08-01

    Full Text Available Lateralized eye use is thought to increase brain efficiency, as the two hemispheres process different information perceived by the eyes. It has been observed in a wide variety of vertebrate species and, in general, information about conspecifics appears to elicit a left eye preference whilst information about prey elicits the opposite. In reptiles, this phenomenon has only been investigated using live conspecifics in agonistic contexts, and so it is not clear whether it can be found when using video stimuli. Here, bearded dragons (Pogona vitticeps were presented with videos of female conspecifics and prey that either moved or were stationary, along with a control video of an empty background. Females exhibited a left eye bias towards conspecifics but males did not; however, both sexes looked at conspecifics significantly longer than prey. Further, animals used their left eye significantly longer when viewing moving stimuli of both categories. These results suggest that, in lizards, lateralized eye use when viewing conspecifics may be controlled by sex, and strongly influenced by stimulus movement. This study, therefore, provides important insights into the role of lateralized processing in lizard perception, and sets the scene for future work investigating the role of sex on perception of conspecifics and the role of motion in lateralized eye use.

  8. Adenoviral infection in a collection of juvenile inland bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Doneley, R J T; Buckle, K N; Hulse, L

    2014-01-01

    Juvenile inland bearded dragons (Pogona vitticeps) from a breeding collection in south-east Queensland were presented at age 6-10 weeks with neurological signs, poor growth and occasional deaths. Histopathological examination revealed that six of eight lizards had multifocal non-suppurative hepatitis associated with 5-10 μm diameter, smudgy, basophilic, hyaline intranuclear inclusion bodies that marginated the nuclear chromatin. These histological lesions were considered consistent with adenoviral hepatitis. Infection with adenovirus was confirmed positive in one of the eight dragons by PCR for adenoviral DNA. DNA was extracted from formalin-fixed paraffin-embedded pooled tissues of the juvenile inland bearded dragons and tested using a nested-PCR protocol with primers specific for identification of adenovirus. Sequencing of the one PCR-positive dragon showed 95% nucleotide sequence alignment with agamid atadenovirus 1. Further investigation involved testing the breeding population, including the parents of the affected juveniles. Blood and cloacal samples were collected from the adult population, DNA was extracted and tested by PCR for adenovirus. There was a high percentage of positive results from the samples collected from the breeding population. This is the first reported group outbreak of adenoviral disease in bearded dragons in Australia. © 2014 Australian Veterinary Association.

  9. Temperature and the respiratory properties of whole blood in two reptiles, Pogona barbata and Emydura signata.

    Science.gov (United States)

    Stawski, Clare Y; Grigg, Gordon C; Booth, David T; Beard, Lyn A

    2006-02-01

    We investigated the capacity of two reptiles, an agamid lizard Pogona barbata and a chelid turtle Emydura signata, to compensate for the effects of temperature by making changes in their whole blood respiratory properties. This was accomplished by measuring the P50 (at 10, 20 and 30 degrees C), hematocrit (Hct), haemoglobin concentration ([Hb]) and mean cell haemoglobin concentration (MCHC) in field acclimatised and laboratory acclimated individuals. The acute effect of temperature on P50 in P. barbata, expressed as heat of oxygenation (deltaH), ranged from -16.8+/-1.84 to -28.5+/-2.73 kJ/mole. P50 of field acclimatised P. barbata increased significantly from early spring to summer at the test temperatures of 20 degrees C (43.1+/-1.2 to 48.8+/-2.1 mmHg) and 30 degrees C (54.7+/-1.2 to 65.2+/-2.3 mmHg), but showed no acclimation under laboratory conditions. For E. signata, deltaH ranged from -31.1+/-6.32 to -48.2+/-3.59 kJ/mole. Field acclimatisation and laboratory acclimation of P50 did not occur. However, in E. signata, there was a significant increase in [Hb] and MCHC from early spring to summer in turtles collected from the wild (1.0+/-0.1 to 1.7+/-0.2 mmol/L and 4.0+/-0.3 to 6.7+/-0.7 mmol/L, respectively).

  10. Control of pulmonary surfactant secretion from type II pneumocytes isolated from the lizard Pogona vitticeps.

    Science.gov (United States)

    Wood, P G; Lopatko, O V; Orgeig, S; Codd, J R; Daniels, C B

    1999-12-01

    Pulmonary surfactant, a mixture consisting of lipids and proteins and secreted by type II cells, functions to reduce the surface tension of the fluid lining of the lung, and thereby decreases the work of breathing. In mammals, surfactant secretion appears to be influenced primarily by the sympathetic nervous system and changes in ventilatory pattern. The parasympathetic nervous system is not believed to affect surfactant secretion in mammals. Very little is known about the factors that control surfactant secretion in nonmammalian vertebrates. Here, a new methodology for the isolation and culture of type II pneumocytes from the lizard Pogona vitticeps is presented. We examined the effects of the major autonomic neurotransmitters, epinephrine (Epi) and ACh, on total phospholipid (PL), disaturated PL (DSP), and cholesterol (Chol) secretion. At 37 degrees C, only Epi stimulated secretion of total PL and DSP from primary cultures of lizard type II cells, and secretion was blocked by the beta-adrenoreceptor antagonist propranolol. Neither of the agonists affected Chol secretion. At 18 degrees C, Epi and ACh both stimulated DSP and PL secretion but not Chol secretion. The secretion of surfactant Chol does not appear to be under autonomic control. It appears that the secretion of surfactant PL is predominantly controlled by the autonomic nervous system in lizards. The sympathetic nervous system may control surfactant secretion at high temperatures, whereas the parasympathetic nervous system may predominate at lower body temperatures, stimulating surfactant secretion without elevating metabolic rate.

  11. The dragon lizard Pogona vitticeps has ZZ/ZW micro-sex chromosomes.

    Science.gov (United States)

    Ezaz, Tariq; Quinn, Alexander E; Miura, Ikuo; Sarre, Stephen D; Georges, Arthur; Marshall Graves, Jennifer A

    2005-01-01

    The bearded dragon, Pogona vitticeps (Agamidae: Reptilia) is an agamid lizard endemic to Australia. Like crocodilians and many turtles, temperature-dependent sex determination (TSD) is common in agamid lizards, although many species have genotypic sex determination (GSD). P. vitticeps is reported to have GSD, but no detectable sex chromosomes. Here we used molecular cytogenetic and differential banding techniques to reveal sex chromosomes in this species. Comparative genomic hybridization (CGH), GTG- and C-banding identified a highly heterochromatic microchromosome specific to females, demonstrating female heterogamety (ZZ/ZW) in this species. We isolated the P. vitticeps W chromosome by microdissection, re-amplified the DNA and used it to paint the W. No unpaired bivalents were detected in male synaptonemal complexes at meiotic pachytene, confirming male homogamety. We conclude that P. vitticeps has differentiated previously unidentifable W and Z micro-sex chromosomes, the first to be demonstrated in an agamid lizard. Our finding implies that heterochromatinization of the heterogametic chromosome occurred during sex chromosome differentiation in this species, as is the case in some lizards and many snakes, as well as in birds and mammals. Many GSD reptiles with cryptic sex chromosomes may also prove to have micro-sex chromosomes. Reptile microchromosomes, long dismissed as non-functional minutiae and often omitted from karyotypes, therefore deserve closer scrutiny with new and more sensitive techniques.

  12. The diet of free-roaming Australian Central Bearded Dragons (Pogona vitticeps).

    Science.gov (United States)

    Oonincx, D G A B; van Leeuwen, J P; Hendriks, W H; van der Poel, A F B

    2015-01-01

    The central bearded dragon (Pogona vitticeps) is one of the most popular pet lizards. However, little is known regarding their nutrient requirement, or their natural diet. Therefore, the stomach contents of 14 free-roaming P. vitticeps were determined by flushing. These stomach contents were described taxonomically, and analyzed for crude protein content as well as fatty acid content and composition. Most of the dry matter intake was in the form of animal material (61%) stemming from nine arthropod orders. The most abundant were alates of the termite Drepanotermes sp., accounting for 95% of the total number of prey items and more than half of the total dry matter (DM) intake. Plant material contributed 16% of the total DM intake. The diets were high in crude protein (41-50% DM) and the total fatty acid content was 14-27% of the DM intake. The main fatty acid was C18:1n9c (51-56% of total fatty acids), and polyunsaturated fatty acids (n3 and n6) comprised 6-8% of the total fat intake. Our data suggest that P. vitticeps is an opportunistic predator, which exploits the seasonal availability of prey. Based on our data and other studies, a diet consisting of several insect species, supplemented with leafy vegetables, rich in n3 FA's, would best resemble the expected natural diet of P. vitticeps. © 2015 Wiley Periodicals, Inc.

  13. [Effect of ribosome engineering on butenyl-spinosyns synthesis of Saccharopolyspora pogona].

    Science.gov (United States)

    Luo, Lin'gen; Yang, Yan; Wei, Hui; Rang, Jie; Tang, Qiong; Hu, Shengbiao; Sun, Yunjun; Yu, Ziquan; Ding, Xuezhi; Xia, Liqiu

    2016-02-01

    Through introducing mutations into ribosomes by obtaining spontaneous drug resistance of microorganisms, ribosome engineering technology is an effective approach to develop mutant strains that overproduce secondary metabolites. In this study, ribosome engineering was used to improve the yield of butenyl-spinosyns produced by Saccharopolyspora pogona by screening streptomycin resistant mutants. The yields of butenyl-spinosyns were then analyzed and compared with the parent strain. Among the mutants, S13 displayed the greatest increase in the yield of butenyl-spinosyns, which was 1.79 fold higher than that in the parent strain. Further analysis of the metabolite profile of S13 by mass spectrometry lead to the discovery of Spinosyn α1, which was absent from the parent strain. DNA sequencing showed that there existed two point mutations in the conserved regions of rpsL gene which encodes ribosomal protein S12 in S13. The mutations occurred a C to A and a C to T transversion mutations occurred at nucleotide pair 314 and 320 respectively, which resulted in the mutations of Proline (105) to Gultamine and Alanine (107) to Valine. It also demonstrated that S13 exhibited genetic stability even after five passages.

  14. Infection with Devriesea agamarum and Chrysosporium guarroi in an inland bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Schmidt-Ukaj, Silvana; Loncaric, Igor; Klang, Andrea; Spergser, Joachim; Häbich, Annett-Carolin; Knotek, Zdenek

    2014-12-01

    Description of clinical, microbiological and histopathological findings in a case of deep dermatitis in an inland bearded dragon (Pogona vitticeps) caused by Devriesea agamarum and Chrysosporium guarroi. A 4-year-old male inland bearded dragon, weighing 497 g, was presented at the clinic because the animal was suffering from dysecdysis and chronic skin lesions. Large numbers of bacilli, cocci and hyphal elements were diagnosed during the microscopic examination of the wound exudate. Microbiological analysis of a skin specimen revealed a moderate growth of Enterococcus sp. and D. agamarum. The condition of the bearded dragon improved with combined therapy consisting of ceftiofur hydrochloride, voriconazole and meloxicam. However, 3 months later recrudescence was observed. This time, Clostridium sp. and Chrysosporium sp. were isolated in large numbers. The bearded dragon was euthanized. Histopathology confirmed a severe granulomatous dermatitis with associated fungal hyphae and a severe granulomatous hepatitis with intralesional hyphae. Chrysosporium guarroi was identified by PCR and sequencing in two organs (skin and liver). This is the first case of an infection with D. agamarum and C. guarroi in an inland bearded dragon (P. vitticeps). It emphasizes the importance of mycological cultures and specific treatment. Samples of suspected Chrysosporium sp. should be cultured at 30°C for 10-14 days. Early antifungal treatment is necessary to prevent systemic and potentially fatal infection with C. guarroi. © 2014 ESVD and ACVD.

  15. Regulation of pulmonary surfactant secretion in the developing lizard, Pogona vitticeps.

    Science.gov (United States)

    Sullivan, Lucy C; Orgeig, Sandra; Daniels, Christopher B

    2002-11-01

    Pulmonary surfactant is a mixture of lipids and proteins that is secreted by alveolar type II cells in the lungs of all air-breathing vertebrates. Pulmonary surfactant functions to reduce the surface tension in the lungs and, therefore, reduce the work of breathing. In mammals, the embryonic maturation of the surfactant system is controlled by a host of factors, including glucocorticoids, thyroid hormones and autonomic neurotransmitters. We have used a co-culture system of embryonic type II cells and lung fibroblasts to investigate the ability of dexamethasone, tri-iodothyronine (T(3)), adrenaline and carbamylcholine (carbachol) to stimulate the cellular secretion of phosphatidylcholine in the bearded dragon (Pogona vitticeps) at day 55 (approx. 92%) of incubation and following hatching. Adrenaline stimulated surfactant secretion both before and after hatching, whereas carbachol stimulated secretion only at day 55. Glucocorticoids and triiodothyronine together stimulated secretion at day 55 but did not after hatching. Therefore, adrenaline, carbachol, dexamethasone and T(3), are all involved in the development of the surfactant system in the bearded dragon. However, the efficacy of the hormones is attenuated during the developmental process. These differences probably relate to the changes in the cellular environment during development and the specific biology of the bearded dragon.

  16. Standardization of the two-dimensional transcoelomic echocardiographic examination in the central bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Silverman, S; Sanchez-Migallon Guzman, D; Stern, J; Gustavsen, K A; Griffiths, L G

    2016-06-01

    To objectively and subjectively describe the normal spectrum of two-dimensional echocardiographic findings in the central bearded dragon (Pogona vitticeps). Sixteen central bearded dragons. Central bearded dragons were prospectively evaluated under manual restraint in right and left lateral recumbency to identify imaging planes for reproducible measurements of cardiac chambers, subjective two-dimensional analysis and color Doppler assessment. Echocardiography can be performed through windows in the left and right axillae. The window in the left axilla allows for a subjective and objective assessment of cardiac structure and function. The right axillary window allows for evaluation of pulmonary artery flow. Both views provide data for the presence of pericardial effusion or valvular insufficiency. With optimized imaging planes, cardiac chambers and fractional area change along with fractional shortening in the longitudinal and transverse planes can be calculated. Body weight and cardiac chamber dimensions of males were significantly larger than females. Ventricular fractional area change was the most consistent functional assessment. The majority of animals were found to have no evidence of valvular insufficiency, while approximately half had evidence of pericardial fluid. Pulmonary artery flow was assessed in all patients. Left and right aortic velocities cannot be reliably obtained. This study is the first to generate reference values for cardiac structure and function in clinically healthy central bearded dragons. Valvular insufficiency is not a normal finding in central bearded dragons, while mild pericardial effusion may be. Copyright © 2015 Elsevier B.V. All rights reserved.

  17. Effects of vitamin D3 supplementation and UVb exposure on the growth and plasma concentration of vitamin D3 metabolites in juvenile bearded dragons (Pogona vitticeps)

    NARCIS (Netherlands)

    Oonincx, D.G.A.B.; Stevens, Y.; Borne, van den J.J.G.C.; Leeuwen, van J.P.T.M.; Hendriks, W.H.

    2010-01-01

    The effectiveness of dietary vitamin D3 and UVb exposure on plasma vitamin D metabolites in growing bearded dragons (Pogona vitticeps) was studied. A total of 84 (40 males and 44 females) newly hatched bearded dragons were allocated to six levels of oral vitamin D3 supplementation (0 to 400%) or six

  18. Autovaccination confers protection against Devriesea agamarum associated septicemia but not dermatitis in bearded dragons (Pogona vitticeps.

    Directory of Open Access Journals (Sweden)

    Tom Hellebuyck

    Full Text Available Devrieseasis caused by Devriesea agamarum is a highly prevalent disease in captive desert lizards, resulting in severe dermatitis and in some cases mass mortality. In this study, we assessed the contribution of autovaccination to devrieseasis control by evaluating the capacity of 5 different formalin-inactivated D. agamarum vaccines to induce a humoral immune response in bearded dragons (Pogona vitticeps. Each vaccine contained one of the following adjuvants: CpG, incomplete Freund's, Ribi, aluminium hydroxide, or curdlan. Lizards were administrated one of the vaccines through subcutaneous injection and booster vaccination was given 3 weeks after primo-vaccination. An indirect ELISA was developed and used to monitor lizard serological responses. Localized adverse effects following subcutaneous immunization were observed in all but the Ribi adjuvanted vaccine group. Following homologous experimental challenge, the incomplete Freund's as well as the Ribi vaccine were observed to confer protection in bearded dragons against the development of D. agamarum associated septicemia but not against dermatitis. Subsequently, two-dimensional gelelectrophoresis followed by immunoblotting and mass spectrometry was conducted with serum obtained from 3 lizards that showed seroconversion after immunisation with the Ribi vaccine. Fructose-bisphosphate aldolase and aldo-keto reductase of D. agamarum reacted with serum from the latter lizards. Based on the demonstrated seroconversion and partial protection against D. agamarum associated disease following the use of formalin-inactivated vaccines as well as the identification of target antigens in Ribi vaccinated bearded dragons, this study provides promising information towards the development of a vaccination strategy to control devrieseasis in captive lizard collections.

  19. Molecular cytogenetic map of the central bearded dragon, Pogona vitticeps (Squamata: Agamidae).

    Science.gov (United States)

    Young, M J; O'Meally, D; Sarre, S D; Georges, A; Ezaz, T

    2013-07-01

    Reptiles, as the sister group to birds and mammals, are particularly valuable for comparative genomic studies among amniotes. The Australian central bearded dragon (Pogona vitticeps) is being developed as a reptilian model for such comparisons, with whole-genome sequencing near completion. The karyotype consists of 6 pairs of macrochromosomes and 10 pairs microchromosomes (2n = 32), including a female heterogametic ZW sex microchromosome pair. Here, we present a molecular cytogenetic map for P. vitticeps comprising 87 anchor bacterial artificial chromosome clones that together span each macro- and microchromosome. It is the first comprehensive cytogenetic map for any non-avian reptile. We identified an active nucleolus organizer region (NOR) on the sub-telomeric region of 2q by mapping 18S rDNA and Ag-NOR staining. We identified interstitial telomeric sequences in two microchromosome pairs and the W chromosome, indicating that microchromosome fusion has been a mechanism of karyotypic evolution in Australian agamids within the last 21 to 19 million years. Orthology searches against the chicken genome revealed an intrachromosomal rearrangement of P. vitticeps 1q, identified regions orthologous to chicken Z on P. vitticeps 2q, snake Z on P. vitticeps 6q and the autosomal microchromosome pair in P. vitticeps orthologous to turtle Pelodiscus sinensis ZW and lizard Anolis carolinensis XY. This cytogenetic map will be a valuable reference tool for future gene mapping studies and will provide the framework for the work currently underway to physically anchor genome sequences to chromosomes for this model Australian squamate.

  20. Immunofluorescent staining reveals hypermethylation of microchromosomes in the central bearded dragon, Pogona vitticeps.

    Science.gov (United States)

    Domaschenz, Renae; Livernois, Alexandra M; Rao, Sudha; Ezaz, Tariq; Deakin, Janine E

    2015-01-01

    Studies of model organisms have demonstrated that DNA cytosine methylation and histone modifications are key regulators of gene expression in biological processes. Comparatively little is known about the presence and distribution of epigenetic marks in non-model amniotes such as non-avian reptiles whose genomes are typically packaged into chromosomes of distinct size classes. Studies of chicken karyotypes have associated the gene-richness and high GC content of microchromosomes with a distinct epigenetic landscape. To determine whether this is likely to be a common feature of amniote microchromosomes, we have analysed the distribution of epigenetic marks using immunofluorescence on metaphase chromosomes of the central bearded dragon (Pogona vitticeps). This study is the first to study the distribution of epigenetic marks on non-avian reptile chromosomes. We observed an enrichment of DNA cytosine methylation, active modifications H3K4me2 and H3K4me3, as well as the repressive mark H3K27me3 in telomeric regions on macro and microchromosomes. Microchromosomes were hypermethylated compared to macrochromosomes, as they are in chicken. However, differences between macro- and microchromosomes for histone modifications associated with actively transcribed or repressed DNA were either less distinct or not detectable. Hypermethylation of microchromosomes compared to macrochromosomes is a shared feature between P. vitticeps and avian species. The lack of the clear distinction between macro- and microchromosome staining patterns for active and repressive histone modifications makes it difficult to determine at this stage whether microchrosome hypermethylation is correlated with greater gene density as it is in aves, or associated with the greater GC content of P. vitticeps microchromosomes compared to macrochromosomes.

  1. Cyclic colour change in the bearded dragon Pogona vitticeps under different photoperiods.

    Science.gov (United States)

    Fan, Marie; Stuart-Fox, Devi; Cadena, Viviana

    2014-01-01

    The ability to change colour rapidly is widespread among ectotherms and has various functions including camouflage, communication and thermoregulation. The process of colour change can occur as an aperiodic event or be rhythmic, induced by cyclic environmental factors or regulated by internal oscillators. Despite the importance of colour change in reptile ecology, few studies have investigated the occurrence of a circadian rhythm in lizard pigmentation. Additionally, although colour change also entails changes in near-infrared reflectance, which may affect thermoregulation, little research has examined this part of the spectrum. We tested whether the bearded dragon lizard, Pogona vitticeps, displays an endogenous circadian rhythm in pigmentation changes that could be entrained by light/dark (LD) cycles and how light affected the relative change in reflectance in both ultraviolet-visible and near-infrared spectra. We subjected 11 lizards to four photoperiodic regimens: LD 12:12; LD 6:18; LD 18:6 and DD; and measured their dorsal skin reflectance at 3-hour intervals for 72 hours after a habituation period. A proportion of lizards displayed a significant rhythm under constant darkness, with maximum reflectance occurring in the subjective night. This endogenous rhythm synchronised to the different artificial LD cycles, with maximum reflectance occurring during dark phases, but did not vary in amplitude. In addition, the total ultraviolet-visible reflectance in relation to the total near-infrared reflectance was significantly higher during dark phases than during light phases. We conclude that P. vitticeps exhibits a circadian pigmentation rhythm of constant amplitude, regulated by internal oscillators and that can be entrained by light/dark cycles.

  2. Cyclic colour change in the bearded dragon Pogona vitticeps under different photoperiods.

    Directory of Open Access Journals (Sweden)

    Marie Fan

    Full Text Available The ability to change colour rapidly is widespread among ectotherms and has various functions including camouflage, communication and thermoregulation. The process of colour change can occur as an aperiodic event or be rhythmic, induced by cyclic environmental factors or regulated by internal oscillators. Despite the importance of colour change in reptile ecology, few studies have investigated the occurrence of a circadian rhythm in lizard pigmentation. Additionally, although colour change also entails changes in near-infrared reflectance, which may affect thermoregulation, little research has examined this part of the spectrum. We tested whether the bearded dragon lizard, Pogona vitticeps, displays an endogenous circadian rhythm in pigmentation changes that could be entrained by light/dark (LD cycles and how light affected the relative change in reflectance in both ultraviolet-visible and near-infrared spectra. We subjected 11 lizards to four photoperiodic regimens: LD 12:12; LD 6:18; LD 18:6 and DD; and measured their dorsal skin reflectance at 3-hour intervals for 72 hours after a habituation period. A proportion of lizards displayed a significant rhythm under constant darkness, with maximum reflectance occurring in the subjective night. This endogenous rhythm synchronised to the different artificial LD cycles, with maximum reflectance occurring during dark phases, but did not vary in amplitude. In addition, the total ultraviolet-visible reflectance in relation to the total near-infrared reflectance was significantly higher during dark phases than during light phases. We conclude that P. vitticeps exhibits a circadian pigmentation rhythm of constant amplitude, regulated by internal oscillators and that can be entrained by light/dark cycles.

  3. Autovaccination confers protection against Devriesea agamarum associated septicemia but not dermatitis in bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Hellebuyck, Tom; Van Steendam, Katleen; Deforce, Dieter; Blooi, Mark; Van Nieuwerburgh, Filip; Bullaert, Evelien; Ducatelle, Richard; Haesebrouck, Freddy; Pasmans, Frank; Martel, An

    2014-01-01

    Devrieseasis caused by Devriesea agamarum is a highly prevalent disease in captive desert lizards, resulting in severe dermatitis and in some cases mass mortality. In this study, we assessed the contribution of autovaccination to devrieseasis control by evaluating the capacity of 5 different formalin-inactivated D. agamarum vaccines to induce a humoral immune response in bearded dragons (Pogona vitticeps). Each vaccine contained one of the following adjuvants: CpG, incomplete Freund's, Ribi, aluminium hydroxide, or curdlan. Lizards were administrated one of the vaccines through subcutaneous injection and booster vaccination was given 3 weeks after primo-vaccination. An indirect ELISA was developed and used to monitor lizard serological responses. Localized adverse effects following subcutaneous immunization were observed in all but the Ribi adjuvanted vaccine group. Following homologous experimental challenge, the incomplete Freund's as well as the Ribi vaccine were observed to confer protection in bearded dragons against the development of D. agamarum associated septicemia but not against dermatitis. Subsequently, two-dimensional gelelectrophoresis followed by immunoblotting and mass spectrometry was conducted with serum obtained from 3 lizards that showed seroconversion after immunisation with the Ribi vaccine. Fructose-bisphosphate aldolase and aldo-keto reductase of D. agamarum reacted with serum from the latter lizards. Based on the demonstrated seroconversion and partial protection against D. agamarum associated disease following the use of formalin-inactivated vaccines as well as the identification of target antigens in Ribi vaccinated bearded dragons, this study provides promising information towards the development of a vaccination strategy to control devrieseasis in captive lizard collections.

  4. From Heart to Fingertips:Listening to Radu Lupo's Recordings%从内心最深处流向指尖和键盘——听拉杜·鲁普的录音集

    Institute of Scientific and Technical Information of China (English)

    周铭孙

    2011-01-01

    @@ 我得到迪卡(DECCA)公司于2010年出版发行的拉杜·鲁普(RADU LUPU COMPLETE DECCA SOLO RECORDINGS)已有好几个月,也听了好几遍了,真是弹得太感人了,以至我都一直下不了笔,因为我感到凭我这点文字,实在难以表达他演奏的精彩.但是总得把这么优秀的演奏介绍给大家吧,在此就把这套唱片的概况做一个说明吧.

  5. Validation of a thermal threshold nociceptive model in bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Couture, Émilie L; Monteiro, Beatriz P; Aymen, Jessica; Troncy, Eric; Steagall, Paulo V

    2017-05-01

    To validate a thermal threshold (TT) nociceptive model in bearded dragons (Pogona vitticeps) and to document TT changes after administration of morphine. A two-part randomized, blinded, controlled, experimental study. Five adult bearded dragons (242-396 g). A TT device delivered a ramped nociceptive stimulus (0.6 °C second(-1)) to the medial thigh until a response (leg kick/escape behavior) was observed or maximum (cut-off) temperature of 62 °C was reached. In phase I, period 1, six TT readings were determined at 20 minute intervals for evaluation of repeatability. Two of these readings were randomly assigned to be sham to assess specificity of the behavioral response. The same experiment was repeated 2 weeks later (period 2) to test reproducibility. In phase II, animals were administered either intramuscular morphine (10 mg kg(-1)) or saline 0.9%. TTs (maximum 68 °C) were determined before and 2, 4, 8, 12 and 24 hours after treatment administration. Data were analyzed using one-way anova (temporal changes and repeatability) and paired t tests (reproducibility and treatment comparisons) using Bonferroni correction (p < 0.05). Mean TT values were 57.4 ± 3.8 °C and 57.3 ± 4.3 °C for periods 1 and 2, respectively. Data were repeatable within each period (p = 0.83 and p = 0.07, respectively). Reproducibility between periods was remarkable (p = 0.86). False-positive responses during sham testing were 10%. TTs were significantly increased after morphine administration at 2, 4 and 8 hours compared with baseline, and at 2 and 4 hours compared with saline 0.9%. The highest TT was 67.7 ± 0.7 °C at 4 hours after morphine administration. Testing was repeatable, reproducible and well tolerated in bearded dragons. TT nociceptive testing detected morphine administration and may be suitable for studying opioid regimens in bearded dragons. Copyright © 2017 Association of Veterinary Anaesthetists and American College of Veterinary Anesthesia and

  6. Identification of interleukin genes in Pogona vitticeps using a de novo transcriptome assembly from RNA-seq data.

    Science.gov (United States)

    Livernois, Alexandra; Hardy, Kristine; Domaschenz, Renae; Papanicolaou, Alexie; Georges, Arthur; Sarre, Stephen D; Rao, Sudha; Ezaz, Tariq; Deakin, Janine E

    2016-10-01

    Interleukins are a group of cytokines with complex immunomodulatory functions that are important for regulating immunity in vertebrate species. Reptiles and mammals last shared a common ancestor more than 350 million years ago, so it is not surprising that low sequence identity has prevented divergent interleukin genes from being identified in the central bearded dragon lizard, Pogona vitticeps, in its genome assembly. To determine the complete nucleotide sequences of key interleukin genes, we constructed full-length transcripts, using the Trinity platform, from short paired-end read RNA sequences from stimulated spleen cells. De novo transcript reconstruction and analysis allowed us to identify interleukin genes that are missing from the published P. vitticeps assembly. Identification of key cytokines in P. vitticeps will provide insight into the essential molecular mechanisms and evolution of interleukin gene families and allow for characterization of the immune response in a lizard for comparison with mammals.

  7. Deep fungal dermatitis caused by the Chrysosporium anamorph of Nannizziopsis vriesii in captive coastal bearded dragons (Pogona barbata).

    Science.gov (United States)

    Johnson, R S P; Sangster, C R; Sigler, L; Hambleton, S; Paré, J A

    2011-12-01

    Deep fungal dermatitis caused by the Chrysosporium anamorph of Nannizziopsis vriesii (CANV) was diagnosed in a group of coastal bearded dragons (Pogona barbata). The outbreak extended over a 6-month period, with four of six lizards from the same zoological outdoor enclosure succumbing to infection. A fifth case of dermatomycosis was identified in a pet lizard originally sourced from the wild. Diagnosis of infection with the CANV was based on similar clinical signs and histopathology in all animals and confirmed by culture and sequencing of the fungus from one animal. This is the first report of the CANV causing disease in a terrestrial reptile species in Australia and the first in the coastal bearded dragon. © 2011 The Authors. Australian Veterinary Journal © 2011 Australian Veterinary Association.

  8. HISTOLOGIC, IMMUNOHISTOCHEMICAL, AND ELECTRON MICROSCOPIC CHARACTERIZATION OF A MALIGNANT IRIDOPHOROMA IN A DWARF BEARDED DRAGON (POGONA HENRYLAWSONI).

    Science.gov (United States)

    de Brot, Simone; Sydler, Titus; Nufer, Lisbeth; Ruetten, Maja

    2015-09-01

    A dwarf bearded dragon (Pogona henrylawsoni) was presented with a white subcutaneous mandibular mass and multiple nodules in the oral mucosa, heart, liver, kidney, intestine, and visceral fat. Histologically, the tumor consisted of densely packed spindle-shaped cells with brow intracytoplasmic pigment that exhibited white-blue birefringence with polarized light. Immunohistochemical staining was negative for S-100 and weakly positive with melan A. Electron microscopic examination revealed cytoplasmic irregular and oblong empty spaces, laminated and often arranged into short stacks, compatible with reflecting platelet profiles typically seen in iridophores. However, in unstained ultrathin sections, electron-dense crystalline material was present, which filled the empty spaces described for stained sections before. Based on histology, immunohistochemistry, and biologic behavior, a malignant iridophoroma was diagnosed. To the authors' knowledge, iridophoromas in lizards have rarely been characterized by using electronic microscopy. Moreover, this is the first description of an iridophoroma in a dwarf bearded dragon.

  9. Dermatomycosis in a pet inland bearded dragon (Pogona vitticeps) caused by a Chrysosporium species related to Nannizziopsis vriesii.

    Science.gov (United States)

    Abarca, M L; Martorell, J; Castellá, G; Ramis, A; Cabañes, F J

    2009-08-01

    A Chrysosporium sp. related to Nannizziopsis vriesii was isolated in pure culture from squames and biopsies of facial lesions in a pet inland bearded dragon (Pogona vitticeps) in Spain. The presence in histological sections of morphologically consistent fungal elements strongly incriminates this fungus as the aetiological agent of infection. Lesions regressed following treatment with oral ketoconazole and topical chlorhexidine and terbinafine until the lizard was lost to follow up 1 month later. The ITS-5.8S rRNA gene of the isolate was sequenced and a search on the GenBank database revealed a high match with the sequences of two Chrysosporium sp. strains recently isolated from green iguanas (Iguana iguana) with dermatomycosis, also in Spain. Phylogenetic analysis of the sequences revealed that all these strains are related to N. vriesii. This is the first report of dermatomycoses caused by a Chrysosporium species related to N. vriesii in a bearded dragon outside North America.

  10. Lack of consistent hormonal responses to capture during the breeding season of the bearded dragon, Pogona barbata.

    Science.gov (United States)

    Cree, A; Amey, A P; Whittier, J M

    2000-06-01

    The bearded dragon (Pogona barbata: Agamidae) is a diurnal, oviparous, multi-clutching lizard from Australia. We examined plasma hormonal responses to capture in males and females during the spring breeding season. Corticosterone concentrations at capture (0 h; < or =3 min after capture) were low (males: 1.81+/-0.63 ng/ml; females 2. 23+/-0.47 ng/ml) and within sexes were unrelated to the time of the day, snout-vent length or, in females, reproductive condition (vitellogenic, gravid, assumed spent). Corticosterone concentrations at capture were significantly and inversely correlated with body condition in males, but not in females. Unexpectedly, neither sex showed significant changes in mean concentrations of corticosterone at 3.5 or 24 h after capture compared with 0 h values. Corticosterone concentrations at 3.5 h after capture did not differ between dragons bled at capture or not. Concentrations of progesterone in both the sexes did not change between 0 h and 3.5 or 24 h after capture. Testosterone concentrations in males at capture were moderate (10.1+/-2.2 ng/ml), and unchanged at 3.5 h after capture. The adrenocortical axis of adult bearded dragons in the breeding season seems remarkably unresponsive to capture compared with many other reptiles. Low adrenocortical responses to capture may be a feature of reptiles known to adjust well to captivity.

  11. Blood vitamin D(3) metabolite concentrations of adult female bearded dragons (Pogona vitticeps) remain stable after ceasing UVb exposure.

    Science.gov (United States)

    Oonincx, D G A B; van de Wal, M D; Bosch, G; Stumpel, J B G; Heijboer, A C; van Leeuwen, J P T M; Hendriks, W H; Kik, M

    2013-07-01

    Vitamin D deficiency can lead to several health problems collectively called metabolic bone disease (MBD). One commonly kept reptile species prone to develop MBD if managed incorrectly is the bearded dragon (Pogona vitticeps). This study aimed to determine the extent to which adult female bearded dragons fed a diet low in vitamin D can use stored vitamin D and its metabolites to maintain plasma 25(OH)D(3) and 1,25(OH)(2)D(3) concentrations after discontinuing UVb exposure. Blood samples of healthy adult female bearded dragons, exposed to UVb radiation for over 6 months were collected (day 0) after which UVb exposure was discontinued for 83 days and blood was collected. Blood plasma was analysed for concentrations of total Ca, total P, ionized Ca, uric acid, 25(OH)D(3) and 1,25(OH)(2)D(3). There was no significant change in plasma 25(OH)D(3) and 1,25(OH)(2)D(3) concentrations during the study. While total Ca and P in whole blood was found to significantly decrease over time (P < 0.0088 and 0.0016, respectively), values were within the reference range. Plasma ionized Ca tended (P = 0.0525) to decrease during the study. Adult female bearded dragons, previously exposed to UVb, are able to maintain blood vitamin D metabolite concentrations when UVb exposure is discontinued for a period of up to 83 days. Copyright © 2013 Elsevier Inc. All rights reserved.

  12. Radiographic anatomy and barium sulfate contrast transit time of the gastrointestinal tract of bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Grosset, Claire; Daniaux, Lise; Guzman, David Sanchez-Migallon; Weber, Ernest Scott; Zwingenberger, Allison; Paul-Murphy, Joanne

    2014-01-01

    The positive contrast gastrointestinal study is a common non-invasive diagnostic technique that does not require anesthesia and enables good visualization of the digestive tract. Radiographic anatomy and reference intervals for gastrointestinal contrast transit time in inland bearded dragons (Pogona vitticeps) were established using seven animals administered 15 ml/kg of a 35% w/v suspension of barium by esophageal gavage. Dorso-ventral and lateral radiographic views were performed at 0, 15, 30 min, 1, 2, 4, 6, 8, 12 h, and then every 12 h up to 96 h after barium administration. Gastric emptying was complete at a median time of 10 h (range 4-24 h). Median jejunum and small intestinal emptying times were 1 h (range 30 min-2 h) and 29 h (range 24-48 h), respectively. Median transit time for cecum was 10 h (range 8-12 h). Median time for contrast to reach the colon was 31 h (range 12-72 h) after administration. Results were compared to those obtained in other reptilian species. This technique appeared safe in fasted bearded dragons and would be clinically applicable in other lizard species.

  13. Voriconazole, a safe alternative for treating infections caused by the Chrysosporium anamorph of Nannizziopsis vriesii in bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Van Waeyenberghe, L; Baert, K; Pasmans, F; van Rooij, P; Hellebuyck, T; Beernaert, L; de Backer, P; Haesebrouck, F; Martel, A

    2010-09-01

    Dermal and systemic infections caused by the Chrysosporium anamorph of Nannizziopsis vriesii (CANV) are highly prevalent in reptiles and may result in severe disease and high mortality. Due to the high incidence of therapeutic failures, optimizing treatment is required. We first determined in this study the minimal inhibitory concentrations (MIC) of itraconazole, voriconazole, amphotericin B and terbinafine against 32 CANV isolates. For voriconazole, amphotericin B and terbinafine a monomodal MIC distribution was seen, whereas a bimodal MIC distribution was present for itraconazole, indicating acquired resistance in one isolate. Fourteen naturally-infected bearded dragons (Pogona vitticeps), from the same owner, were treated orally with either itraconazole (5 mg/kg q24h) or voriconazole (10 mg/kg q24h). The clinical condition, drug plasma concentrations and the presence of CANV in skin samples were followed. The animals were treated until complete clearance of the fungus. The plasma concentrations of voriconazole and itraconazole exceeded the minimal inhibitory concentrations of the CANV isolates. Elimination of CANV was achieved on average after 27 and 47 days of treatment with itraconazole and voriconazole, respectively. Whereas only 2 out of 7 survived after itraconazole treatment, only a single animal died in the voriconazole treated group. In conclusion, based on a limited number of animals, voriconazole applied at a regimen of 10 mg/kg bodyweight (BW) q24h seems to be a safe and effective antimycotic drug to eliminate CANV infections in bearded dragons.

  14. ANESTHETIC INDUCTION AND RECOVERY PARAMETERS IN BEARDED DRAGONS (POGONA VITTICEPS): COMPARISON OF ISOFLURANE DELIVERED IN 100% OXYGEN VERSUS 21% OXYGEN.

    Science.gov (United States)

    O, Odette; Churgin, Sarah M; Sladky, Kurt K; Smith, Lesley J

    2015-09-01

    Inland bearded dragons (Pogona vitticeps, n=6) were anesthetized for 1 hr using isoflurane in either 100% oxygen or 21% oxygen (FI 21; medical-grade room air). Parameters of anesthetic depth were recorded throughout both induction and recovery by an observer blinded to the fraction of inspired oxygen (FiO2), including the loss and return of withdrawal and righting reflexes, muscle tone, ability to intubate or extubate, and return to spontaneous respiration. Physiologic data were recorded every 5 min throughout the anesthetic procedures, including heart rate, body temperature, end-tidal CO2, hemoglobin oxygen saturation (SpO2), and percent expired isoflurane. Lizards were subjected to application of a noxious stimulus (needle stick) at 0, 30, and 60 min, and responses recorded. Following a minimum 7-day washout period, the experiment was repeated with each lizard subjected to the other protocol in a randomized, complete crossover design. The only statistically significant difference was a lower mean SpO2 in the group inspiring 21% oxygen (P<0.0020). No statistically significant differences were detected in any parameters during induction or recovery; however, all values were uniformly shorter for the FI 21 group, indicating a possible clinically significant difference. A larger sample size may have detected statistically significant differences. Further studies are needed to evaluate these effects in other reptile species and with the concurrent use of injectable anesthetic and analgesic drugs.

  15. Claudin-7-positive synchronous spontaneous intrahepatic cholangiocarcinoma, adenocarcinoma and adenomas of the gallbladder in a Bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Jakab, Csaba; Rusvai, Miklós; Szabó, Zoltán; Gálfi, Péter; Marosán, Miklós; Kulka, Janina; Gál, János

    2011-03-01

    In this study, synchronous spontaneous, independent liver and gallbladder tumours were detected in a Bearded dragon (Pogona vitticeps). The multiple tumours consisted of intrahepatic cholangiocarcinoma as well as in situ adenocarcinoma and two adenomas of the gallbladder. The biliary epithelial cells and the cholangiocarcinoma showed membranous cross-immunoreactivity for claudin-7. The gallbladder epithelial cells, its adenoma and adenocarcinoma showed basolateral cross-reactivity for claudin-7. We think that the humanised anti-claudin-7 antibody is a good marker for the detection of different primary cholangiocellular and gallbladder tumours in Bearded dragons. The cholangiocytes, the cholangiocarcinoma, the endothelial cells of the liver and the epithelial cells and gallbladder tumours all showed claudin-5 cross-reactivity. The humanised anti-cytokeratin AE1-AE3 antibody showed cross-reactivity in the biliary epithelial cells, cholangiocarcinoma cells, epithelial cells and tumour cells of the gallbladder. It seems that this humanised antibody is a useful epithelial marker for the different neoplastic lesions of epithelial cells in reptiles. The humanised anti-α-smooth muscle actin (α-SMA) antibody showed intense cross-reactivity in the smooth muscle cells of the hepatic vessels and in the muscle layer of the gallbladder. The portal myofibroblasts, the endothelial cells of the sinusoids and the stromal cells of the cholangiocarcinoma and gallbladder tumours were positive for α-SMA. The antibovine anti-vimentin and humanised anti-Ki-67 antibodies did not show crossreactivity in the different samples from the Bearded dragon.

  16. The effect of thermal quality on the thermoregulatory behavior of the bearded dragon Pogona vitticeps: influences of methodological assessment.

    Science.gov (United States)

    Cadena, Viviana; Tattersall, Glenn J

    2009-01-01

    Metabolic functions are generally optimized within a narrow range of body temperatures (T(b)'s), conferring thermoregulation great importance to the survival and fitness of an animal. In lizards, T(b) regulation is mainly behavioral, and the metabolic costs associated with behavioral thermoregulation are primarily locomotory. In reptiles, however, it has been proposed that they thermoregulate less precisely when the associated costs, metabolic or otherwise, are high. Such a strategy enhances fitness by allowing lizards to be more flexible to changing environmental conditions while maximizing the benefits of maintaining a high T(b) and minimizing energy expenditure. We evaluated the behavioral thermoregulation of inland bearded dragons Pogona vitticeps under various thermal quality conditions requiring different locomotory investment for thermoregulation. The selected ambient temperature and preferred T(b) ranges increased at lower environmental thermal qualities, indicating a decrease in thermoregulatory precision in environments where the costs associated with thermoregulation were high. The level of thermoregulation was also affected, exhibiting a decrease in preferred T(b) of approximately 2 degrees C at the lowest-thermal-quality treatment. These data provide important implications for the procedural assessment of preferred T(b) and a better understanding of thermal set points in reptiles in general. Our results emphasize that the precise maintenance and assessment of preferred T(b) is contingent on the quality of the environment, laboratory or natural, that the animal inhabits.

  17. Deep fungal dermatitis in three inland bearded dragons (Pogona vitticeps) caused by the Chrysosporium anamorph of Nannizziopsis vriesii.

    Science.gov (United States)

    Bowman, Michelle R; Paré, Jean A; Sigler, Lynne; Naeser, John P; Sladky, Kurt K; Hanley, Chris S; Helmer, Peter; Phillips, Lynette A; Brower, Alexandra; Porter, Robert

    2007-06-01

    The Chrysosporium anamorph of Nannizziopsis vriesii (CANV), a keratinophilic fungus that naturally and experimentally causes severe and often fatal dermatitis in multiple reptile species, was isolated in pure culture from skin samples of three inland bearded dragons (Pogona vitticeps) with deep granulomatous dermatomycosis. The first animal presented with a focal maxillary swelling involving the skin and gingiva. This lizard died while undergoing itraconazole and topical miconazole therapy. The second presented with focally extensive discoloration and thickening of the skin of the ventrum and was euthanized after 10 weeks of itraconazole therapy. A third lizard presented with hyperkeratotic exudative dermatitis on a markedly swollen forelimb. Amputation and itraconazole therapy resulted in a clinical cure. Histopathology of tissue biopsies in all cases demonstrated granulomatous dermatitis with intralesional hyphae morphologically consistent with those produced by the CANV. The second lizard also had granulomatous hepatitis with intralesional hyphae. Evidence in this report suggests that the CANV is the etiologic agent of an emerging condition in captive bearded dragons that has been called 'yellow fungus disease'.

  18. Genotype differentiation of Agamid Adenovirus 1 in bearded dragons (Pogona vitticeps) in the USA by hexon gene sequence.

    Science.gov (United States)

    Parkin, Derek B; Archer, Linda L; Childress, April L; Wellehan, James F X

    2009-07-01

    Bearded dragons (Pogona vitticeps) are popular pets in the United States. Agamid Adenovirus 1 (AgAdV1) is an important infectious agent of bearded dragons. The only AgAdV1 sequences available to date are from a highly conserved region of the DNA polymerase gene. Degenerate primers were designed to amplify a variable region of the AgAdV1 hexon gene for sequencing. Genetic differences were identified within the hexon gene of 17 bearded dragons from 4 collections. Much less diversity was present in the polymerase gene. Bayesian analysis of the hexon nucleotide alignment identified two larger groups and two isolates that did not tightly cluster with these two groups. Multiple genotypes were identified within collections, and individual genotypes were seen in different collections. Three bearded dragons appeared to be infected by multiple strains. These findings show that this hexon region is useful for AgAdV1 genotyping, which can be used epidemiologically as well as in future investigations of AgAdV1 evolution and clinical implications of strain differences.

  19. Seasonal patterns of plasma steroid hormones in males and females of the bearded dragon lizard, Pogona barbata.

    Science.gov (United States)

    Amey, A P; Whittier, J M

    2000-03-01

    Pogona barbata is an Australian lizard that produces several large clutches of eggs between August and December (spring to early summer). Mating takes place around ovulation. The seasonal pattern of reproductive hormones in males and females of P. barbata was determined by radioimmunoassay of plasma progesterone (P), estradiol-17beta (E-17beta), corticosterone (B), and total androgen (TA). In females, P began to rise in August and was elevated from September to December. Corticosterone and TA were detectable but low and did not vary with time of year or reproductive condition. Estradiol-17beta was only detectable in a few females and exhibited no elevation with vitellogenic activity. These results suggest that B and TA are not involved in female reproduction. Estrogens may be either so low they could not be detected or they were present in a form other than estradiol-17beta. The high sensitivity of the estradiol-17beta radioimmunoassay suggests the latter. In males, TA peaked at the beginning of spring. They then declined to a minimum during November and December. However, concentrations recovered in the postbreeding activity period, January to April (summer and autumn). These patterns are consistent with the observation of maximum spermatogenic activity in spring, followed by the cessation of spermatogenesis directly after the breeding period and testicular recrudescence in February (late summer).

  20. Modulation of prey capture kinematics and the role of lingual sensory feedback in the lizard Pogona vitticeps.

    Science.gov (United States)

    Schaerlaeken, Vicky; Meyers, Jay J; Herrel, Anthony

    2007-01-01

    Most organisms feed on a variety of prey that may differ dramatically in their physical and behavioural characteristics (e.g. mobility, mass, texture, etc.). Thus the ability to modulate prey capture behaviour in accordance with the characteristics of the food appears crucial. In animals that use rapid tongue movements to capture prey (frogs and chameleons), the coordination of jaws and tongue is based on visual cues gathered prior to the prey capture event. However, most iguanian lizards have much slower tongue-based prey capture systems suggesting that sensory feedback from the tongue may play an important role in coordinating jaw and tongue movements. We investigated the modulation of prey capture kinematics in the agamid lizard Pogona vitticeps when feeding on a range of food items differing in their physical characteristics. As the lizard is a dietary generalist, we expected it to be able to modulate its prey capture kinematics as a function of the (mechanical) demands imposed by the prey. Additionally, we investigated the role of lingual sensory feedback by transecting the trigeminal sensory afferents. Our findings demonstrated that P. vitticeps modulates its prey capture kinematics according to specific prey properties (e.g. size). In addition, transection of the trigeminal sensory nerves had a strong effect on prey capture kinematics. However, significant prey type effects and prey type by transection effects suggest that other sources of sensory information are also used to modulate the prey capture kinematics in P. vitticeps.

  1. Field test of a paradigm: hysteresis of heart rate in thermoregulation by a free-ranging lizard (Pogona barbata).

    Science.gov (United States)

    Grigg, G C; Seebacher, F

    1999-06-22

    The discovery that changes in heart rate and blood flow allow some reptiles to heat faster than they cool has become a central paradigm in our understanding of reptilian thermoregulation. However, this hysteresis in heart rate has been demonstrated only in simplistic laboratory heating and cooling trials, leaving its functional significance in free-ranging animals unproven. To test the validity of this paradigm, we measured heart rate and body temperature (Tb) in undisturbed, free-ranging bearded dragons (Pogona barbata), the species in which this phenomenon was first described. Our field data confirmed the paradigm and we found that heart rate during heating usually exceeded heart rate during cooling at any Tb. Importantly, however, we discovered that heart rate was proportionally faster in cool lizards whose Tb was still well below the 'preferred Tb range' compared to lizards whose Tb was already close to it. Similarly, heart rate during cooling was proportionally slower the warmer the lizard and the greater its cooling potential compared to lizards whose Tb was already near minimum operative temperature. Further, we predicted that, if heart rate hysteresis has functional significance, a 'reverse hysteresis' pattern should be observable when lizards risked overheating. This was indeed the case and, during heating on those occasions when Tb reached very high levels (> 40 degrees C), heart rate was significantly lower than heart rate during the immediately following cooling phase. These results demonstrate that physiological control of thermoregulation in reptiles is more complex than has been previously recognized.

  2. Porphyromonas pogonae sp. nov., an anaerobic but low concentration oxygen adapted coccobacillus isolated from lizards (Pogona vitticeps) or human clinical specimens, and emended description of the genus Porphyromonas Shah and Collins 1988.

    Science.gov (United States)

    Kawamura, Yoshiaki; Kuwabara, Saki; Kania, Stephen A; Kato, Hisayuki; Hamagishi, Manami; Fujiwara, Nagatoshi; Sato, Takuichi; Tomida, Junko; Tanaka, Kaori; Bemis, David A

    2015-03-01

    During the process of identifying a Gram-negative coccobacillus isolated from a human clinical specimen, we found that the isolate's 16S rRNA gene had very close sequence identity with that of a variant Porphyromonas isolated from polymicrobial infections in the central bearded dragon, a species of lizard [2]. The 16S rRNA gene sequences of the human isolate and of six isolates from lizards were nearly identical (99.9-100%). Phylogenetic analysis placed all of these isolates in a single phylogenetic cluster well separated from other species in the genus Porphyromonas. The closest species was Porphyromonas catoniae with 90.7-90.9% sequence identity, although there was less than 6% DNA similarity between the P. catoniae type strain and our representative isolates from lizards (PAGU 1787(T)) and human (PAGU 1776). These isolates could grow under anaerobic or microaerobic conditions (6% O2 atmosphere). The isolates were positive for catalase and very strong β-hemolytic activity, but did not show black or brown pigmentation. Biochemically, the isolates could be differentiated from closely related species by pyroglutamic acid arylamidase and glycine arylamidase activity, and some others. The fermentation products mainly included succinic acid and propionic acid. The major fatty acids detected in cells of the isolates were iso-C15:0, anteiso-C15:0, and 3OH-iso-C17:0. The G+C content was 43.0 ± 0.62 mol%. The species name Porphyromonas pogonae sp. nov. is proposed for these isolates with the type strain of PAGU 1787(T) (=MI 10-1288(T)=JCM 19732(T)=ATCC BAA-2643(T)). Copyright © 2014 Elsevier GmbH. All rights reserved.

  3. Control of heart rate during thermoregulation in the heliothermic lizard Pogona barbata: importance of cholinergic and adrenergic mechanisms.

    Science.gov (United States)

    Seebacher, F; Franklin, C E

    2001-12-01

    During thermoregulation in the bearded dragon Pogona barbata, heart rate when heating is significantly faster than when cooling at any given body temperature (heart rate hysteresis), resulting in faster rates of heating than cooling. However, the mechanisms that control heart rate during heating and cooling are unknown. The aim of this study was to test the hypothesis that changes in cholinergic and adrenergic tone on the heart are responsible for the heart rate hysteresis during heating and cooling in P. barbata. Heating and cooling trials were conducted before and after the administration of atropine, a muscarinic antagonist, and sotalol, a beta-adrenergic antagonist. Cholinergic and beta-adrenergic blockade did not abolish the heart rate hysteresis, as the heart rate during heating was significantly faster than during cooling in all cases. Adrenergic tone was extremely high (92.3 %) at the commencement of heating, and decreased to 30.7 % at the end of the cooling period. Moreover, in four lizards there was an instantaneous drop in heart rate (up to 15 beats min(-1)) as the heat source was switched off, and this drop in heart rate coincided with either a drop in beta-adrenergic tone or an increase in cholinergic tone. Rates of heating were significantly faster during the cholinergic blockade, and least with a combined cholinergic and beta-adrenergic blockade. The results showed that cholinergic and beta-adrenergic systems are not the only control mechanisms acting on the heart during heating and cooling, but they do have a significant effect on heart rate and on rates of heating and cooling.

  4. Characterization of Metarhizium viride Mycosis in Veiled Chameleons (Chamaeleo calyptratus), Panther Chameleons (Furcifer pardalis), and Inland Bearded Dragons (Pogona vitticeps).

    Science.gov (United States)

    Schmidt, Volker; Klasen, Linus; Schneider, Juliane; Hübel, Jens; Pees, Michael

    2017-03-01

    Metarhizium viride has been associated with fatal systemic mycoses in chameleons, but subsequent data on mycoses caused by this fungus in reptiles are lacking. The aim of this investigation was therefore to obtain information on the presence of M. viride in reptiles kept as pets in captivity and its association with clinical signs and pathological findings as well as improvement of diagnostic procedures. Beside 18S ribosomal DNA (rDNA) (small subunit [SSU]) and internal transcribed spacer region 1 (ITS-1), a fragment of the large subunit (LSU) of 28S rDNA, including domain 1 (D1) and D2, was sequenced for the identification of the fungus and phylogenetic analysis. Cultural isolation and histopathological examinations as well as the pattern of antifungal drug resistance, determined by using agar diffusion testing, were additionally used for comparison of the isolates. In total, 20 isolates from eight inland bearded dragons (Pogona vitticeps), six veiled chameleons (Chamaeleo calyptratus), and six panther chameleons (Furcifer pardalis) were examined. Most of the lizards suffered from fungal glossitis, stomatitis, and pharyngitis or died due to visceral mycosis. Treatment with different antifungal drugs according to resistance patterns in all three different lizard species was unsuccessful. Sequence analysis resulted in four different genotypes of M. viride based on differences in the LSU fragment, whereas the SSU and ITS-1 were identical in all isolates. Sequence analysis of the SSU fragment revealed the first presentation of a valid large fragment of the SSU of M. viride According to statistical analysis, genotypes did not correlate with differences in pathogenicity, antifungal susceptibility, or species specificity. Copyright © 2017 American Society for Microbiology.

  5. High-coverage sequencing and annotated assembly of the genome of the Australian dragon lizard Pogona vitticeps.

    Science.gov (United States)

    Georges, Arthur; Li, Qiye; Lian, Jinmin; O'Meally, Denis; Deakin, Janine; Wang, Zongji; Zhang, Pei; Fujita, Matthew; Patel, Hardip R; Holleley, Clare E; Zhou, Yang; Zhang, Xiuwen; Matsubara, Kazumi; Waters, Paul; Graves, Jennifer A Marshall; Sarre, Stephen D; Zhang, Guojie

    2015-01-01

    The lizards of the family Agamidae are one of the most prominent elements of the Australian reptile fauna. Here, we present a genomic resource built on the basis of a wild-caught male ZZ central bearded dragon Pogona vitticeps. The genomic sequence for P. vitticeps, generated on the Illumina HiSeq 2000 platform, comprised 317 Gbp (179X raw read depth) from 13 insert libraries ranging from 250 bp to 40 kbp. After filtering for low-quality and duplicated reads, 146 Gbp of data (83X) was available for assembly. Exceptionally high levels of heterozygosity (0.85 % of single nucleotide polymorphisms plus sequence insertions or deletions) complicated assembly; nevertheless, 96.4 % of reads mapped back to the assembled scaffolds, indicating that the assembly included most of the sequenced genome. Length of the assembly was 1.8 Gbp in 545,310 scaffolds (69,852 longer than 300 bp), the longest being 14.68 Mbp. N50 was 2.29 Mbp. Genes were annotated on the basis of de novo prediction, similarity to the green anole Anolis carolinensis, Gallus gallus and Homo sapiens proteins, and P. vitticeps transcriptome sequence assemblies, to yield 19,406 protein-coding genes in the assembly, 63 % of which had intact open reading frames. Our assembly captured 99 % (246 of 248) of core CEGMA genes, with 93 % (231) being complete. The quality of the P. vitticeps assembly is comparable or superior to that of other published squamate genomes, and the annotated P. vitticeps genome can be accessed through a genome browser available at https://genomics.canberra.edu.au.

  6. Pharmacokinetics of subcutaneous versus intramuscular administration of ceftiofur crystalline-free acid to bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Churgin, Sarah M; Musgrave, Kari E; Cox, Sherry K; Sladky, Kurt K

    2014-05-01

    To compare pharmacokinetics after a single IM or SC injection of ceftiofur crystalline-free acid (CCFA) to bearded dragons (Pogona vitticeps). 8 adult male bearded dragons. In a preliminary experiment, doses of 15 and 30 mg/kg, SC, were compared in 2 animals, and 30 mg/kg resulted in a more desirable pharmacokinetic profile. Then, in a randomized, complete crossover experimental design, each bearded dragon (n = 6) received a single dose of 30 mg of CCFA/kg IM or SC; the experiment was repeated after a 28-day washout period with the other route of administration. Blood samples were collected at 10 time points for 288 hours after injection. Plasma concentrations of ceftiofur and desfuroylceftiofur metabolites were measured via reverse-phase high-performance liquid chromatography. Data were analyzed with a noncompartmental model. No adverse effects were observed. Plasma concentrations greater than a target minimum inhibitory concentration of 1 μg/mL were achieved by 4 hours after administration by both routes. Mean plasma concentrations remained > 1 μg/mL for > 288 hours for both routes of administration. A single dose of CCFA (30 mg/kg) administered IM or SC to bearded dragons yielded plasma concentrations of ceftiofur and its metabolites > 1 μg/mL for > 288 hours. The SC route would be preferred because of less variability in plasma concentrations and greater ease of administration than the IM route. Future studies should include efficacy data as well as evaluation of the administration of multiple doses.

  7. Expression of a hindlimb-determining factor Pitx1 in the forelimb of the lizard Pogona vitticeps during morphogenesis.

    Science.gov (United States)

    Melville, Jane; Hunjan, Sumitha; McLean, Felicity; Mantziou, Georgia; Boysen, Katja; Parry, Laura J

    2016-10-01

    With over 9000 species, squamates, which include lizards and snakes, are the largest group of reptiles and second-largest order of vertebrates, spanning a vast array of appendicular skeletal morphology. As such, they provide a promising system for examining developmental and molecular processes underlying limb morphology. Using the central bearded dragon (Pogona vitticeps) as the primary study model, we examined limb morphometry throughout embryonic development and characterized the expression of three known developmental genes (GHR, Pitx1 and Shh) from early embryonic stage through to hatchling stage via reverse transcription quantitative polymerase chain reaction (RT-qPCR) and immunohistochemistry (IHC). In this study, all genes were found to be transcribed in both the forelimbs and hindlimbs of P. vitticeps. While the highest level of GHR expression occurred at the hatchling stage, Pitx1 and Shh expression was greatest earlier during embryogenesis, which coincides with the onset of the differentiation between forelimb and hindlimb length. We compared our finding of Pitx1 expression-a hindlimb-determining gene-in the forelimbs of P. vitticeps to that in a closely related Australian agamid lizard, Ctenophorus pictus, where we found Pitx1 expression to be more highly expressed in the hindlimb compared with the forelimb during early and late morphogenesis-a result consistent with that found across other tetrapods. Expression of Pitx1 in forelimbs has only rarely been documented, including via in situ hybridization in a chicken and a frog. Our findings from both RT-qPCR and IHC indicate that further research across a wider range of tetrapods is needed to more fully understand evolutionary variation in molecular processes underlying limb morphology. © 2016 The Authors.

  8. Assessment of platelet-derived growth factor using A splinted full thickness dermal wound model in bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Keller, Krista A; Paul-Murphy, Joanne; Weber, E P Scott; Kass, Philip H; Guzman, Sanchez-Migallon David; Park, Shin Ae; Raghunathan, Vijay Krishna; Gustavsen, Kate A; Murphy, Christopher J

    2014-12-01

    Wounds in reptiles are a common reason for presentation to a veterinarian. At this time there is limited information on effective topical medications to aid in wound closure. The objectives of this study were to translate the splinted, full-thickness dermal wound model, validated in mice, to the bearded dragon (Pogona vitticeps) and to determine the effect of topical becaplermin (BP), a platelet-derived growth factor (0.01%), on the rate of wound closure. Ten bearded dragons were anesthetized and two full-thickness cutaneous wounds were made on the dorsum of each lizard. Encircling splints were applied surrounding each wound and subsequently covered by a semi-occlusive dressing. Five lizards had one wound treated with BP and the adjacent wound treated with a vehicle control. Five additional lizards had one wound treated with saline and the second wound treated with a vehicle control. Wounds were imaged daily, and the wound area was measured using digital image analysis. The change in percentage wound closure over 17 days and the time to 50% wound closure was compared among the four treatment groups. There was no significant difference in wound closure rates between BP-treated and saline-treated wounds or in the time to 50% wound closure between any treatments. Vehicle-treated wounds adjacent to saline-treated wounds closed significantly slower than did BP (P < 0.010), saline (P < 0.001), and vehicle-treated wounds adjacent to BP-treated wounds (P < 0.013). Our preliminary study indicates that the splinted wound model, with modifications, may be used to determine wound closure rates in bearded dragons. When compared with saline, BP did not have a significant effect on wound closure rates, while the vehicle alone delayed wound closure. Histologic analysis of experimentally created wounds throughout the wound healing process is needed to further evaluate the effects of these treatments on reptile dermal wound healing.

  9. Allometric variation among juvenile, adult male and female eastern bearded dragons Pogona barbata (Cuvier, 1829), with comments on the behavioural implications.

    Science.gov (United States)

    Wotherspoon, Danny; Burgin, Shelley

    2011-02-01

    The functional significance of allometric change in reptiles has received limited attention and the reason for such changes has been regarded as 'obscure'. In this paper we report data on the Australian Pogona barbata, the eastern bearded dragon, from across their range and review changes in allometric growth among juveniles, and adult males and females and consider the functional relevance of these changes. There were significant differences in the population for mass, tail length, tail width, rear leg length and jaw length. These differences were consistent with differences required in locomotor performance and thus habitat use, together with access to different preferred dietary components. Crown Copyright © 2011. Published by Elsevier GmbH. All rights reserved.

  10. Heat transfer in a microvascular network: the effect of heart rate on heating and cooling in reptiles (Pogona barbata and Varanus varius).

    Science.gov (United States)

    Seebacher, F

    2000-03-21

    Thermally-induced changes in heart rate and blood flow in reptiles are believed to be of selective advantage by allowing animal to exert some control over rates of heating and cooling. This notion has become one of the principal paradigms in reptilian thermal physiology. However, the functional significance of changes in heart rate is unclear, because the effect of heart rate and blood flow on total animal heat transfer is not known. I used heat transfer theory to determine the importance of heat transfer by blood flow relative to conduction. I validated theoretical predictions by comparing them with field data from two species of lizard, bearded dragons (Pogona barbata) and lace monitors (Varanus varius). Heart rates measured in free-ranging lizards in the field were significantly higher during heating than during cooling, and heart rates decreased with body mass. Convective heat transfer by blood flow increased with heart rate. Rates of heat transfer by both blood flow and conduction decreased with mass, but the mass scaling exponents were different. Hence, rate of conductive heat transfer decreased more rapidly with increasing mass than did heat transfer by blood flow, so that the relative importance of blood flow in total animal heat transfer increased with mass. The functional significance of changes in heart rate and, hence, rates of heat transfer, in response to heating and cooling in lizards was quantified. For example, by increasing heart rate when entering a heating environment in the morning, and decreasing heart rate when the environment cools in the evening a Pogona can spend up to 44 min longer per day with body temperature within its preferred range. It was concluded that changes in heart rate in response to heating and cooling confer a selective advantage at least on reptiles of mass similar to that of the study animals (0. 21-5.6 kg). Copyright 2000 Academic Press.

  11. Effects of sublethal fenitrothion ingestion on cholinesterase inhibition, standard metabolism, thermal preference, and prey-capture ability in the Australian central bearded dragon (Pogona vitticeps, Agamidae).

    Science.gov (United States)

    Bain, David; Buttemer, William A; Astheimer, Lee; Fildes, Karen; Hooper, Michael J

    2004-01-01

    The central bearded dragon (Pogona vitticeps) is a medium-sized lizard that is common in semiarid habitats in Australia and that potentially is at risk of fenitrothion exposure from use of the chemical in plague locust control. We examined the effects of single sublethal doses of this organophosphate (OP; low dose = 2.0 mg/kg; high dose = 20 mg/kg; control = vehicle alone) on lizard thermal preference, standard metabolic rate, and prey-capture ability. We also measured activities of plasma total cholinesterase (ChE) and acetylcholinesterase before and at 0, 2, 8, 24, 120, and 504 h after OP dosing. Predose plasma total ChE activity differed significantly between sexes and averaged 0.66 +/- 0.06 and 0.45 +/- 0.06 micromol/min/ml for males and females, respectively. Approximately 75% of total ChE activity was attributable to butyrylcholinesterase. Peak ChE inhibition reached 19% 2 h after OP ingestion in the low-dose group, and 68% 8 h after ingestion in high-dose animals. Neither OP doses significantly affected diurnal body temperature, standard metabolic rate, or feeding rate. Plasma total ChE levels remained substantially depressed up to 21 d after dosing in the high-dose group, making this species a useful long-term biomonitor of OP exposure in its habitat.

  12. Development and validation of a novel hydrolysis probe real-time polymerase chain reaction for agamid adenovirus 1 in the central bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Fredholm, Daniel V; Coleman, James K; Childress, April L; Wellehan, James F X

    2015-03-01

    Agamid adenovirus 1 (AgAdv-1) is a significant cause of disease in bearded dragons (Pogona sp.). Clinical manifestations of AgAdv-1 infection are variable and often nonspecific; the manifestations range from lethargy, weight loss, and inappetence, to severe enteritis, hepatitis, and sudden death. Currently, diagnosis of AgAdv-1 infection is achieved through a single published method: standard nested polymerase chain reaction (nPCR) and sequencing. Standard nPCR with sequencing provides reliable sensitivity, specificity, and validation of PCR products. However, this process is comparatively expensive, laborious, and slow. Probe hybridization, as used in a TaqMan assay, represents the best option for validating PCR products aside from the time-consuming process of sequencing. This study developed a real-time PCR (qPCR) assay using a TaqMan probe-based assay, targeting a highly conserved region of the AgAdv-1 genome. Standard curves were generated, detection results were compared with the gold standard conventional PCR and sequencing assay, and limits of detection were determined. Additionally, the qPCR assay was run on samples known to be positive for AgAdv-1 and samples known to be positive for other adenoviruses. Based on the results of these evaluations, this assay allows for a less expensive, rapid, quantitative detection of AgAdv-1 in bearded dragons. © 2015 The Author(s).

  13. Dermatomycosis caused by Paranannizziopsis australasiensis in five tuatara (Sphenodon punctatus) and a coastal bearded dragon (Pogona barbata) in a zoological collection in New Zealand.

    Science.gov (United States)

    Masters, N J; Alexander, S; Jackson, B; Sigler, L; Chatterton, J; Harvey, C; Gibson, R; Humphrey, S; Rawdon, T G; Spence, R P; Ha, H J; McInnes, K; Jakob-Hoff, R

    2016-09-01

    Health monitoring of tuatara (Sphenodon punctatus) at Auckland Zoo between 2001 and 2009 showed that 58/93 tuatara had been affected by dermatitis of unknown origin. From 2011 onwards, cases of suspected fungal dermatitis underwent extensive diagnostic investigations. Six cases of dermatomycosis were attributed to Paranannizziopsis australasiensis, five in tuatara and one in a coastal bearded dragon (Pogona barbata). Cases presented typically as raised, yellow to brown encrustations on the skin. Severe cases progressed to necrotising ulcerative dermatitis, and in the bearded dragon to fatal systemic mycosis. Following topical and systemic treatments, lesions resolved in all five tuatara. Histopathological examination of skin biopsy samples revealed dermatitis with intralesional septate branching hyphae. Fungal culture yielded isolates morphologically resembling Chrysosporium species, and isolates were submitted for molecular confirmation and sequencing of DNA. All six cases were confirmed as dermatitis due to infection with P. australasiensis, on the basis of fungal culture and DNA sequencing of isolates. These are the first reported cases of dermatomycosis associated with P. australasiensis infection in tuatara, and the first cases in which systemic therapeutic agents have been used in the treatment of such disease. Tuatara at the Auckland Zoo are now routinely examined every 3 months and tissue samples from any lesions sent for histopathology and fungal culture. Further work to elucidate the epidemiology and significance of P. australasiensis infections in reptiles in New Zealand is important for both welfare and conservation purposes.

  14. Pharmacokinetic and pharmacodynamic evaluations of a 10 mg/kg enrofloxacin intramuscular administration in bearded dragons (Pogona vitticeps): a preliminary assessment.

    Science.gov (United States)

    Salvadori, M; Vercelli, C; De Vito, V; Dezzutto, D; Bergagna, S; Re, G; Giorgi, M

    2017-01-01

    Enrofloxacin (E) is commonly used in veterinary medicine. It is necessary to perform pharmacokinetic/dynamic studies to minimize the selection of resistant mutants of bacteria and extend the efficacy of antimicrobial agents. Eight healthy adult Pogona vitticeps were assigned into two groups of equal size and treated with a single intramuscular injection of E at 10 mg/kg. Blood samples were withdrawn at different scheduled times for each group, and rectal swabs were collected. E and ciprofloxacin (active metabolite) blood concentrations were quantified by an HPLC validated method, while the in vitro antimicrobial susceptibility was evaluated by the Kirby-Bauer disc diffusion susceptibility test. The pharmacokinetic profiles of E gave similar pharmacokinetic parameters irrespective of the collection time schedule. Bacteria isolation showed the presence of both E. coli, Salmonella enterica subspecies enterica and subspecies 3a, Proteus spp., and Pseudomonas spp. The majority of isolated colonies were sensitive to E, but the treatment did not reduce the number of bacteria in faeces. Results suggest that E is able to reach blood concentrations high enough to kill susceptible bacteria (MIC < 0.9 μg/mL), but at the same time does not significantly affect intestinal bacteria. © 2016 John Wiley & Sons Ltd.

  15. Extension, single-locus conversion and physical mapping of sex chromosome sequences identify the Z microchromosome and pseudo-autosomal region in a dragon lizard, Pogona vitticeps.

    Science.gov (United States)

    Quinn, A E; Ezaz, T; Sarre, S D; Graves, Ja Marshall; Georges, A

    2010-04-01

    Distribution of temperature-dependent sex determination (TSD) and genotypic sex determination (GSD) across the phylogeny of dragon lizards implies multiple independent origins of at least one, and probably both, modes of sex determination. Female Pogona vitticeps are the heterogametic sex, but ZZ individuals reverse to a female phenotype at high incubation temperatures. We used reiterated genome walking to extend Z and W chromosome-linked amplified fragment length polymorphism (AFLP) markers, and fluorescence in situ hybridization for physical mapping. One extended fragment hybridized to both W and Z microchromosomes, identifying the Z microchromosome for the first time, and a second hybridized to the centromere of all microchromosomes. W-linked sequences were converted to a single-locus PCR sexing assay. P. vitticeps sex chromosome sequences also shared homology with several other Australian dragons. Further physical mapping and isolation of sex-specific bacterial artificial chromosome clones will provide insight into the evolution of sex determination and sex chromosomes in GSD and TSD dragon lizards.

  16. Bearded dragons (Pogona vitticeps) asymptomatically infected with Devriesea agamarum are a source of persistent clinical infection in captive colonies of dab lizards (Uromastyx sp.).

    Science.gov (United States)

    Devloo, R; Martel, A; Hellebuyck, T; Vranckx, K; Haesebrouck, F; Pasmans, F

    2011-06-02

    Devriesea agamarum causes dermatitis and septicaemia in a variety of lizards, notably those belonging to the genus Uromastyx, whereas other species such as bearded dragons (Pogona vitticeps) seem to be asymptomatic carriers. Using amplified fragment length polymorphism (AFLP), the relatedness between 69 D. agamarum isolates was examined. The isolates derived from 44 diseased lizards, of which 31 belonged to the genus Uromastyx, and from 25 healthy lizards, of which 21 were bearded dragons. Eight AFLP genotypes were obtained, four of which comprised 93% of the isolates. These four genotypes were each present in 2, 2, 8 and 13 different captive colonies. Up to three genotypes were isolated from a single infected colony simultaneously. On two occasions, the same genotype was found in healthy bearded dragons and diseased Uromastyx lizards from the same colony, confirming the role of the former as an asymptomatic source of infection for the latter. Two genotypes, comprising 12 isolates, were exclusively associated with diseased Uromastyx lizards, suggesting strain dependent host adaptation. Finally, D. agamarum was shown to be able to persist for at least seven years in a lizard colony, persistently causing severe disease in several lizard species. Copyright © 2011 Elsevier B.V. All rights reserved.

  17. Modulation, individual variation and the role of lingual sensory afferents in the control of prey transport in the lizard Pogona vitticeps.

    Science.gov (United States)

    Schaerlaeken, Vicky; Herrel, Anthony; Meyers, J J

    2008-07-01

    Most organisms feed on a variety of food items that may differ dramatically in their physical and behavioural characteristics (e.g. mobility, mass, texture, etc.). Thus the ability to modulate prey transport behaviour in accordance with the characteristics of the food appears crucial. Consequently, prey reduction and transport movements must be adjusted to the natural variation in material properties of the food, between and within feeding sequences and transport cycles. Here we describe an investigation of (1) the ability of the agamid lizard Pogona vitticeps to modulate prey transport kinematics when feeding on a range of food items differing in their physical characteristics and (2) the role of sensory feedback in controlling jaw and tongue movements by bilateral transection of the lingual trigeminal sensory afferents. Our findings demonstrate that P. vitticeps modulates the kinematics of its feeding behaviour in response to the mechanical demands imposed by different food types. In addition, transection of the trigeminal sensory afferents has an effect on the movements of jaws and tongue during transport, and increases the duration of transport cycles needed to process a given food type. However, after transection, transport cycles were still different for different food types suggesting that other sources of sensory information are also used to modulate prey transport in the lizard P. vitticeps.

  18. Cholelithiasis in adult bearded dragons: retrospective study of nine adult bearded dragons (Pogona vitticeps) with cholelithiasis between 2013 and 2015 in southern Germany.

    Science.gov (United States)

    Gimmel, A; Kempf, H; Öfner, S; Müller, D; Liesegang, A

    2017-06-01

    With an increased number of pet reptiles, many diseases occur due to nutritional disorders. Between 2013 and 2015, irregular gallbladder contents (sludge/choleliths) in adult bearded dragons (Pogona vitticeps) were recorded in many of the routinely conducted necropsies at the reptile rescue station in Munich (Auffangstation für Reptilien, München e.V., Munich, Germany). Nine animals, six from the rescue station and three from an associated veterinary practice (Tierärztliche Praxis für Exoten, Augsburg, Germany), were studied. Gallbladder contents from all animals were analysed at the Institute for Clinical Chemistry in Zurich, Switzerland. In three of nine animals, one cholelith composed of 100% calcium carbonate (CaCO3 ) was detected and it precipitated either as pure calcite or as a calcite:vaterite combination. In the remaining six animals, analyses suggested a protein-based material. The detection of choleliths/sludge was not anticipated at necropsy or surgery in eight of nine animals. The diet of the six animals from the rescue station was retrospectively described as mainly insects, whereas the diet of the three animals from the veterinary practice also contained little plant matter. Fed insect species were mealworm larva (Tenebrio molitor), house cricket (Acheta domestica), migratory locust (Locusta migratoria) and zophobas larva (Zophobas morio), all high in protein and fat. In other species, a nidus must be present for CaCO3 to precipitate. As a protein-based sludge was detected in six gallbladders, it is possible that a high-protein diet could lead to such a nidus and subsequently to cholelith formation. Cholelithiasis seems to be a rising problem in adult bearded dragons and is likely underdiagnosed, as many choleliths were found at necropsy. This rise in cholelithiasis may correlate with an unnatural high-protein, high-fat insect-based diet instead of a balanced plant-based diet. Journal of Animal Physiology and Animal Nutrition © 2017 Blackwell

  19. Effects of vitamin D3 supplementation and UVb exposure on the growth and plasma concentration of vitamin D3 metabolites in juvenile bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Oonincx, D G A B; Stevens, Y; van den Borne, J J G C; van Leeuwen, J P T M; Hendriks, W H

    2010-06-01

    The effectiveness of dietary vitamin D3 and UVb exposure on plasma vitamin D metabolites in growing bearded dragons (Pogona vitticeps) was studied. A total of 84 (40 males and 44 females) newly hatched bearded dragons were allocated to six levels of oral vitamin D3 supplementation (0 to 400%) or six UVb exposure times (2 to 12 h). At 3 and 6 months of age, blood samples were obtained from each animal and analysed for 25(OH)D3 and 1,25(OH)2D3. At 3 months of age, plasma concentrations of 25(OH)D3 did not increase with increasing vitamin D3 supplementation unlike the 1,25(OH)2D3. At 6 months of age, plasma concentrations of both 25(OH)D(3) and 1,25(OH)2D3 increased with increasing vitamin D(3) supplementation. Plasma concentrations in UVb-exposed animals were 18 times higher for 25(OH)D3 (178.4+/-9.0 vs. 9.9+/-1.3 nmol/L) and 5.3 times higher for 1,25(OH)2D3 (1.205+/-0.100 vs. 0.229+/-0.025 nmol/L) than in vitamin D(3) supplemented animals at 6 months of age. This study shows that 2h of UVb exposure enables adequate physiological concentrations of plasma vitamin D metabolites to be maintained in growing bearded dragons. Oral supplementation of vitamin D(3) is ineffective in raising plasma concentrations of 25(OH)D3 and 1,25(OH)2D3 to concentrations observed in UVb-exposed animals. 2010 Elsevier Inc. All rights reserved.

  20. Anchoring genome sequence to chromosomes of the central bearded dragon (Pogona vitticeps) enables reconstruction of ancestral squamate macrochromosomes and identifies sequence content of the Z chromosome.

    Science.gov (United States)

    Deakin, Janine E; Edwards, Melanie J; Patel, Hardip; O'Meally, Denis; Lian, Jinmin; Stenhouse, Rachael; Ryan, Sam; Livernois, Alexandra M; Azad, Bhumika; Holleley, Clare E; Li, Qiye; Georges, Arthur

    2016-06-10

    Squamates (lizards and snakes) are a speciose lineage of reptiles displaying considerable karyotypic diversity, particularly among lizards. Understanding the evolution of this diversity requires comparison of genome organisation between species. Although the genomes of several squamate species have now been sequenced, only the green anole lizard has any sequence anchored to chromosomes. There is only limited gene mapping data available for five other squamates. This makes it difficult to reconstruct the events that have led to extant squamate karyotypic diversity. The purpose of this study was to anchor the recently sequenced central bearded dragon (Pogona vitticeps) genome to chromosomes to trace the evolution of squamate chromosomes. Assigning sequence to sex chromosomes was of particular interest for identifying candidate sex determining genes. By using two different approaches to map conserved blocks of genes, we were able to anchor approximately 42 % of the dragon genome sequence to chromosomes. We constructed detailed comparative maps between dragon, anole and chicken genomes, and where possible, made broader comparisons across Squamata using cytogenetic mapping information for five other species. We show that squamate macrochromosomes are relatively well conserved between species, supporting findings from previous molecular cytogenetic studies. Macrochromosome diversity between members of the Toxicofera clade has been generated by intrachromosomal, and a small number of interchromosomal, rearrangements. We reconstructed the ancestral squamate macrochromosomes by drawing upon comparative cytogenetic mapping data from seven squamate species and propose the events leading to the arrangements observed in representative species. In addition, we assigned over 8 Mbp of sequence containing 219 genes to the Z chromosome, providing a list of genes to begin testing as candidate sex determining genes. Anchoring of the dragon genome has provided substantial insight into

  1. Citing George Orwell, Michael Radu states that 'those who control ...

    African Journals Online (AJOL)

    visser

    Brown asserts that modern ideas about memory are rooted in classical ... The ways people talk and think about recent and distant events is determined by .... barrage on the Western Front during World War I until, in the words of John. Terraine ...

  2. Eesti muusika otsis uusi radu rahvusvahelisse muusikamaailma / Joosep Sang

    Index Scriptorium Estoniae

    Sang, Joosep

    2009-01-01

    26.-28. märtsini toimunud festivalist Tallinn Music Week, kus osales 65 kohalikku ansamblit ja mida külastasid sajad muusikatööstuse esindajad Euroopast. Festivali muljeid jagavad peakorraldaja Helen Sildna, Soome ajakirja Rumba ajakirjanik Janne Flinkkilä, Norra plaadifirma Smalltown Supersound juht Joakim Haugland ja Soome-Inglise muusikamänedžer Paul Cheetham

  3. Evaluacija ergonomskih faktora u stomatološkom radu i procena faktora rizika

    OpenAIRE

    Pejčić, Nataša D.

    2015-01-01

    Uvod.Veliki broj studija u svetu govori u prilog tome da su bolesti u vezi sa radom, u prvom redu mišićno-skeletna oboljenja, veoma česta u populaciji stomatologa. Uzrok tome može se naći u činjenici da je stomatološka profesija veoma zahtevna, podrazumeva pružanje pomoći pacijentima u specifičnom radnom okruženju. Stomatolozi inkorporiraju svoje stavove, vrednosti, ponašanje da bi radili u najboljem interesu pacijenta, i postavljaju pacijenta na prvo mesto. Istovremeno često zanemaruju sebe,...

  4. ZAŠTITA DOSTOJANSTVA I ZDRAVLJA RADNIKA - ZAŠTITA OD MALTRETIRANJA NA RADU I U VEZI S RADOM

    OpenAIRE

    Šokčević, Svjetlana

    2016-01-01

    SAŽETAK: Izvješća državnih institucija i sudska praksa u Hrvatskoj dokazuju da radni uvjeti odstupaju od normativnog sadržaja temeljnog prava radnika Europske unije (EU), a time i radnika u Hrvatskoj, na poštene i pravične radne uvjete u kojima se čuvaju zdravlje, sigurnost i dostojanstvo radnika. To pravo utvrđeno je Poveljom o temeljnim pravima EU-a. Povremeno se u Hrvatskoj predlaže donošenje posebnog zakona o mobbingu koji prijedlog više nije relevantan jer je zaštita radnika od maltretir...

  5. Zaštita na radu prilikom izvođenja građevinskih radova i upotrebi mehanizacije

    Directory of Open Access Journals (Sweden)

    Miloš Z. Petrović

    2014-04-01

    Full Text Available Zaštita prilikom rukovanja građevinskom mehanizacijom, kao i pri izvođenju građevinskih radova, bitan je i značajan faktor u celokupnom kompleksnom procesu izgradnje. Pažljivim rukovanjem štite se ljudski životi i životna sredina, kao i sami građevinski materijali. Pažljivim i dobrim rukovanjem i izvođenjem može se postići i finansijska ušteda i da ne dođe do dodatnih troškova. Mere zaštite koje treba preduzeti su: zaštita od opasnost u toku izvođenja radova i zaštita od opasnosti u toku eksplatacije objekta. Ova oblast je striktno definisana zakonskom regulativom. 

  6. Integrirani pretvornik za napajanje pogona in baterij električnega vozila v režimu napajanja pogona

    OpenAIRE

    2014-01-01

    Sodobni čas si človek težko predstavlja brez osebne mobilnosti in avtomobilov. Primarni energetski vir za pogon vozil še vedno ostajajo fosilna goriva, čeprav se v zadnjem času vse bolj vpeljujejo alternativna pogonska sredstva. Alternativo konvencionalnim vozilom z motorjem z notranjim izgorevanjem predstavljajo električna vozila, ki zaradi izboljšav v tehnologiji pogonskih sklopov in hranilnikov energije, postajajo vse bolj konkurenčna in splošno razširjena. Kljub dejstvu, da so električna ...

  7. Ostvarivanje namjere Opće deklaracije o bioetici i ljudskim pravima u radu bolničkih etičkih povjerenstava

    OpenAIRE

    Katić Bubaš, Jasminka; Jančić, Ervin

    2010-01-01

    Opća deklaracija o bioetici i ljudskim pravima od 19. listopada 2005. godine u članku 19. promiče rad i namjeru etičkih povjerenstava kao neovisnih, multidisciplinarnih i pluralističkih etičkih odbora koji se trebaju osnivati, promicati i podržati na svim odgovarajućim razinama kako bi: (a) izvršili procjenu relevantnih etičkih, pravnih, znanstvenih i socijalnih pitanja koja se odnose na istraživačke projekte koji uključuju ljudska bića; (b) pružili savjete o etičkim problemima u kliničkom ok...

  8. Complete Genome Sequence of Campylobacter iguaniorum Strain 1485ET, Isolated from a Bearded Dragon (Pogona vitticeps)

    NARCIS (Netherlands)

    Gilbert, Maarten J|info:eu-repo/dai/nl/370804465; Miller, William G; Yee, Emma; Kik, Marja|info:eu-repo/dai/nl/080432565; Wagenaar, Jaap A|info:eu-repo/dai/nl/126613354; Duim, Birgitta|info:eu-repo/dai/nl/143855352

    2014-01-01

    Campylobacter iguaniorum has been isolated from reptiles. This Campylobacter species is genetically related to Campylobacter fetus and Campylobacter hyointestinalis. Here we present the first whole-genome sequence for this species.

  9. RAZVOJ RAČUNALNIŠKIH IGER S POMOČJO GRAFIČNEGA POGONA UNITY

    OpenAIRE

    2013-01-01

    V tej diplomski nalogi bomo pregledali grafični pogon Unity, ki služi kot orodje za razvoj računalniških iger. Spoznali bomo orodja, ki jih grafični pogon Unity uporablja pri izdelovanju iger. To zajema: urejevalnik okolja Unity, materiale in njihove senčnike, delo s fizikalnimi lastnostmi objektov, zvok in orodje za osvetlitev znotraj igre. Vse naštete komponente bomo praktično uporabili in predstavili ob gradnji realno časovne strateške igre Varovanje terena za internetni brskalnik. O...

  10. Complete Genome Sequence of Campylobacter iguaniorum Strain 1485ET, Isolated from a Bearded Dragon (Pogona vitticeps).

    Science.gov (United States)

    Gilbert, Maarten J; Miller, William G; Yee, Emma; Kik, Marja; Wagenaar, Jaap A; Duim, Birgitta

    2014-08-21

    Campylobacter iguaniorum has been isolated from reptiles. This Campylobacter species is genetically related to Campylobacter fetus and Campylobacter hyointestinalis. Here we present the first whole-genome sequence for this species. Copyright © 2014 Gilbert et al.

  11. Granulomatous osteomyelitis associated with atypical mycobacteriosis in a bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Kramer, Marc H

    2006-09-01

    The zoonotic potential of Mycobacterium spp has been well documented and has been implicated in cutaneous and subcutaneous nodular disease in humans. Treatment of the infected reptiles is often not recommended, because of the zoonotic potential. Moreover, the often-advanced nature of the disease when diagnosed, the lengthy and expensive treatment regimens, and lack of a reported successful treatment regimen for reptiles usually warrant euthanasia in these patients. Strict attention must be paid to cage hygiene and sanitation to minimize exposure and eliminate the organisms.

  12. Experience with the RK 5000 bucket chain excavator. Iskustva iz pogona stroja RK 5000

    Energy Technology Data Exchange (ETDEWEB)

    Madry, F.

    1988-01-01

    Highlights technical features of the RK 5000 bucket chain excavator manufactured by the Czechoslovak Vitkovice concern on the basis of the RK-400 excavator. Capacity of the RK-5000 excavator ranges from 3600-4500 m/sup 3//h depending on chain velocity and on the properties of excavated material. Capacity of 5,000 m/sup 3//h was also achieved by overloading the buckets by 12%. The pulling force of the bucket chain is 220 t (excess force of up to 330 t was also achieved for short periods). The working heights (or working depth) may reach 2 m. Bucket volume is 3,650 l. The installed power of the RK-5000 excavator is 2x1,600 kW. Experience gained during trial operation of the RK-5000 excavator in loose soil, and subsequent technical improvements made are presented.

  13. Ranavirus in an outbreak of dermatophilosis in captive inland bearded dragons (Pogona vitticeps).

    Science.gov (United States)

    Tamukai, Kenichi; Tokiwa, Toshihiro; Kobayashi, Hideki; Une, Yumi

    2016-04-01

    Various pathogens cause skin diseases in lizards. An outbreak of skin disease occurred in a population of 100 inland bearded dragons at a breeding facility in Japan; 50 developed skin lesions and 15 mortalities were reported. To identify the pathogens responsible for the skin lesions and to determine the cause of death. Eight specimens (three dead, two euthanized, three living) were randomly selected from a group of inland bearded dragons with skin lesions consisting of multifocal superficial dermatitis. Biopsy samples were taken from skin lesions and healthy skin of the live specimens. Postmortem examinations were performed on the dead and euthanized specimens. Skin samples were processed for microbiological culture, 16S ribosomal DNA (rDNA) sequencing for bacteria, ranavirus major capsid protein (MCP) gene sequencing and histopathological examination. Histopathological examinations were also performed on postmortem tissue samples. Both Austwickia chelonae and ranavirus (DNA) were detected in the skin lesions. Pathological examination revealed no significant visceral lesions caused by A. chelonae or ranavirus infection in dead specimens. To the best of the authors' knowledge this is the first report of dermatophilosis due to A. chelonae infection in lizards and the first description of a concurrent infection with a ranavirus. The combined infection associated with the skin lesions may have been the primary cause of death. Co-infection with a ranavirus should be considered as a possible factor in cases of reptilian dermatophilosis. © 2016 ESVD and ACVD.

  14. Multicentric benign peripheral nerve sheath tumors in two related bearded dragons, Pogona vitticeps.

    Science.gov (United States)

    Lemberger, K Y; Manharth, A; Pessier, A P

    2005-07-01

    Multiple subcutaneous masses from two sibling bearded dragons were removed. Nodules were well demarcated, restricted to the subcutis, and soft, white to yellow, resembling adipose tissue. Histologically, the masses were composed of short interlacing streams and bundles of spindle cells, with regions of vague nuclear palisading. Two of the tumors contained a subpopulation of polygonal cells with abundant periodic acid-Schiff (PAS)-positive cytoplasmic granules. Neoplastic cells were immunohistochemically positive for S100 and neuron-specific enolase (NSE) but negative for desmin and smooth muscle actin. Electron microscopy and reticulin stains demonstrated a continuous basal lamina separating intertwining cells. Histologic, ultrastructural, and immunohistochemical features were consistent with a peripheral nerve sheath origin. At 1 year postexcision, local reoccurrence of a single incompletely excised mass from the left shoulder was noted.

  15. Teadusdoktor käib mööda liivi radu : noor keeleteadlane ajab hääbuva rahva asja ka luuletades ja kunstnikuna / Valts Ernštreits ; intervjueerinud Raimu Hanson

    Index Scriptorium Estoniae

    Ernštreits, Valts, 1974-

    2011-01-01

    Valts Ernštreits tõlkis liivi keelde president Toomas Hendrik Ilvese tervituskõne 25. novembril 2011 Tartu Ülikooli ajaloomuuseumis toimunud rahvusvahelisel konverentsil "Liivlased. Maa. Rahvas. Ajalugu"

  16. Field test of a paradigm: hysteresis of heart rate in thermoregulation by a free-ranging lizard (Pogona barbata).

    OpenAIRE

    Grigg, G C; Seebacher, F.

    1999-01-01

    The discovery that changes in heart rate and blood flow allow some reptiles to heat faster than they cool has become a central paradigm in our understanding of reptilian thermoregulation. However, this hysteresis in heart rate has been demonstrated only in simplistic laboratory heating and cooling trials, leaving its functional significance in free-ranging animals unproven. To test the validity of this paradigm, we measured heart rate and body temperature (Tb) in undisturbed, free-ranging bea...

  17. [Evaluation of a number of commercial diets for iguana (Iguana iguana), bearded dragons (Pogona vitticeps), and land and marsh tortoises].

    Science.gov (United States)

    Kik, M J; Beynen, A C

    2003-09-15

    Fifteen commercially available, complete diets for iguanas, bearded dragons, and chelonians were analysed and compared with the ideal composition of a diet formulated by the authors. The clinical risks of feeding with a too high or a too low content of specific nutrients are described. Nutrient deficiencies are not expected if these diets are the sole source of nutrients. However, one diet had only a marginally adequate protein content, five diets for herbivorous reptiles contained a too low percentage of crude fibre, three diets contained an undesirably high percentage of calcium, and three diets had an extremely high iron content. As a rule, the calcium and iron contents of diets are not declared on the food label, which complicates evaluation of the diets.

  18. The influence of hypoxia on the thermal sensitivity of skin colouration in the bearded dragon, Pogona vitticeps.

    Science.gov (United States)

    de Velasco, Jesus Barraza; Tattersall, Glenn J

    2008-09-01

    One physiological mechanism used by reptiles to remain within thermal optima is their ability to reversibly alter skin colour, imparting changes in overall reflectance, and influencing the rate of heat gain from incident radiation. The ability to lighten or darken their skin is caused by the movement of pigment within the dermal chromatophore cells. Additionally, lizards, as ectotherms, significantly lower their preferred body temperatures when experiencing stressors such as hypoxia. This decrease in preferred temperature has been proposed to be the result of a downward adjustment of the thermal set-point, the temperature around which the body temperature is typically defended. We tested the hypothesis that lightening of the skin in lizards would be modified by hypoxia in a manner consistent with the known reduction in preferred temperatures. Skin colouration values of the dorsal skin of bearded dragons were analysed at three different levels of oxygen (20.8, 9.9 and 4.9 kPa) and at temperatures spanning the preferred temperature range (30, 32, 34, 36, 38 and 40 C). Hypoxic lizards lightened their skin at lower ambient temperatures more than normoxic ones, and in an oxygen-dependent fashion. The orchestrated adjustment of skin reflectance suggests that this physiological trait is being regulated at a new and lower set-point. Evidence from this study demonstrates that skin colouration plays a role in body temperature regulation and that the reduction in temperature set-point so prevalent in hypoxia is also manifested in this physiological trait.

  19. Plasma biochemical reference values in clinically healthy captive bearded dragons (Pogona vitticeps) and the effects of sex and season.

    Science.gov (United States)

    Tamukai, Kenichi; Takami, Yoshinori; Akabane, Yoshihito; Kanazawa, Yuko; Une, Yumi

    2011-09-01

    Bearded dragons are one of the most popular pet lizard species, and biochemical reference values are useful for health management of these reptiles. The objectives of this study were to measure plasma biochemical values in healthy captive bearded dragons, determine reference values, and evaluate the effects of sex and season on the results. Blood samples were collected from 100 captive healthy bearded dragons in Tokyo during the summer and winter. Plasma biochemical measurements were performed using a dry-slide automated biochemical analyzer. The data were then compared based on sex and season using 2-way ANOVA. Globulin, cholesterol, and calcium concentrations of females were higher in both summer and winter compared with the values obtained for males. Both males and females had higher uric acid concentrations in winter than in summer. When compared with males, females had a higher chloride concentration in summer and a higher total protein concentration and aspartate aminotransferase activity in winter. Potassium concentration in males was lower in winter than in summer, whereas in females cholesterol concentration was lower in winter than in summer. Biochemical values that differed based on sex and season in bearded dragons were similar to those in other lizards. These differences reflect physiologic differences in reproductive status in females and seasonal changes in temperature and hydration status. Plasma biochemical values established for bearded dragons in this study will be useful in the diagnostic assessment of captive animals. ©2011 American Society for Veterinary Clinical Pathology.

  20. An outbreak of adenoviral infection in inland bearded dragons (Pogona vitticeps) coinfected with dependovirus and coccidial protozoa (Isospora sp.).

    Science.gov (United States)

    Kim, Dae Young; Mitchell, Mark A; Bauer, Rudy W; Poston, Rob; Cho, Doo-Youn

    2002-07-01

    Thirty of 200 (15%) hatchling inland bearded dragons were found dead after a short period (48 hours) of weakness and lethargy. The most common clinical signs were head tilt and circling. Six bearded dragons with neurological signs were euthanized, and postmortem examination revealed no gross abnormalities. Microscopically, severe, randomly distributed hepatocellular necrosis with large basophilic intranuclear inclusion bodies in numerous hepatocytes was noted. Small-intestinal enterocytes contained intracytoplasmic coccidial protozoa (Isospora sp.) and occasional enterocytes had basophilic intranuclear inclusion bodies. Transmission electron microscopy revealed both 80- and 20-nm-diameter viral particles, which were consistent with adenoviruses and dependoviruses, respectively. Adenoviral outbreaks in groups of animals are uncommon. An adverse synergistic effect of the coccidiosis with the adenoviral infection may have played a critical role in the high morbidity and mortality in this case.

  1. Triple infection with agamid adenovirus 1, Encephaliton cuniculi-like microsporidium and enteric coccidia in a bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Schilliger, Lionel; Mentré, Véronique; Marschang, Rachel E; Nicolier, Alexandra; Richter, Barbara

    2016-10-12

    A 2-month-old juvenile central bearded dragon was presented for anorexia and cachexia. Another specimen from the same cage had died suddenly 2 weeks prior. Fecal analysis revealed a high quantity of Isospora amphiboluri and a few pinworm eggs. Other examinations were not performed and the animal died a few days later despite supportive care. A third individual from the same cage presented with anorexia and a distended cœlom and was euthanized. In this third dragon, histological examination revealed intestinal coccidiosis, basophilic intranuclear inclusions compatible with adenovirus infection, acute hepatic necrosis with intrahepatocytic and intraenteritic organisms typical of microsporidia and renal gout. A PCR confirmed the diagnosis of adenovirosis. Sequencing showed that the PCR product was 100% identical to the corresponding portion of the agamid adenovirus 1 genome. A PCR for the detection of Encephalitozoon (E.) cuniculi was positive. Partial sequencing revealed 100% identity to an E. cuniculi-like organism previously found in bearded dragons. In cases where environmental factors such as poor hygiene or stress can be excluded, the presence of opportunistic pathogens in high numbers can be due to a systemic (viral) infection with temporary immunosuppression.

  2. Elektromagnetni top - istraživački projekat ili uskoro u upotrebi? / Electromagnetic gun: Still just a research project or the reality of the operational use?

    Directory of Open Access Journals (Sweden)

    Selena P. Bakić

    2010-07-01

    Full Text Available Više od jednog veka istraživači u mnogim zemljama sveta bave se istraživanjem i razvojem elektromagnetnog (EM topa koji bi bio u mogućnosti da lansira projektil vrlo velikim brzinama. U publikovanoj stručnoj literaturi veći broj radova odnosi se na teorijska razmatranja pojedinih fenomena električnog pogona projektila i na hardverska rešenja električnih uređaja i komponenata, a manje su dostupni javnosti radovi koji se odnose na borbenu upotrebu, koncepciju rešenja i mogućnosti primene takvog oružja u borbenim sistemima vojske. U radu se ukazuje na osnovne probleme projektovanja takvog sistema naoružanja i saopštavaju se informacije na osnovu kojih se može proceniti da li će, kada i na kakvoj platformi EM top biti uveden u operativnu upotrebu. / For more than a century researchers in many countries have been engaged in research and development of electromagnetic (EM guns in order to launch projectiles with very high speed. In published sources many papers are related to theoretical considerations of certain phenomena of electrically driven projectiles and hardware solutions for electrical devices and components required for projectile launching. The works related to the philosophy of combat use, the concept of solutions and possibilities of application of such weapon systems are, however, less available to the public. The intention of the authors of this paper is to point out the basic problems of designing such weapon systems, and to give the readers the information on the basis of which they can assess whether it is possible, when and on what kind of platform for the EM gun to be approved for the operational use.

  3. Comparative evaluation of the cadaveric, radiographic and computed tomographic anatomy of the heads of green iguana (Iguana iguana , common tegu ( Tupinambis merianae and bearded dragon ( Pogona vitticeps

    Directory of Open Access Journals (Sweden)

    Banzato Tommaso

    2012-05-01

    Full Text Available Abstract Background Radiology and computed tomography are the most commonly available diagnostic tools for the diagnosis of pathologies affecting the head and skull in veterinary practice. Nevertheless, accurate interpretation of radiographic and CT studies requires a thorough knowledge of the gross and the cross-sectional anatomy. Despite the increasing success of reptiles as pets, only a few reports over their normal imaging features are currently available. The aim of this study is to describe the normal cadaveric, radiographic and computed tomographic features of the heads of the green iguana, tegu and bearded dragon. Results 6 adult green iguanas, 4 tegus, 3 bearded dragons, and, the adult cadavers of : 4 green iguana, 4 tegu, 4 bearded dragon were included in the study. 2 cadavers were dissected following a stratigraphic approach and 2 cadavers were cross-sectioned for each species. These latter specimens were stored in a freezer (−20°C until completely frozen. Transversal sections at 5 mm intervals were obtained by means of an electric band-saw. Each section was cleaned and photographed on both sides. Radiographs of the head of each subject were obtained. Pre- and post- contrast computed tomographic studies of the head were performed on all the live animals. CT images were displayed in both bone and soft tissue windows. Individual anatomic structures were first recognised and labelled on the anatomic images and then matched on radiographs and CT images. Radiographic and CT images of the skull provided good detail of the bony structures in all species. In CT contrast medium injection enabled good detail of the soft tissues to be obtained in the iguana whereas only the eye was clearly distinguishable from the remaining soft tissues in both the tegu and the bearded dragon. Conclusions The results provide an atlas of the normal anatomical and in vivo radiographic and computed tomographic features of the heads of lizards, and this may be useful in interpreting any imaging modality involving these species.

  4. Comparative evaluation of the cadaveric, radiographic and computed tomographic anatomy of the heads of green iguana (Iguana iguana), common tegu (Tupinambis merianae) and bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Banzato, Tommaso; Selleri, Paolo; Veladiano, Irene A; Martin, Andrea; Zanetti, Emanuele; Zotti, Alessandro

    2012-05-11

    Radiology and computed tomography are the most commonly available diagnostic tools for the diagnosis of pathologies affecting the head and skull in veterinary practice. Nevertheless, accurate interpretation of radiographic and CT studies requires a thorough knowledge of the gross and the cross-sectional anatomy. Despite the increasing success of reptiles as pets, only a few reports over their normal imaging features are currently available. The aim of this study is to describe the normal cadaveric, radiographic and computed tomographic features of the heads of the green iguana, tegu and bearded dragon. 6 adult green iguanas, 4 tegus, 3 bearded dragons, and, the adult cadavers of: 4 green iguana, 4 tegu, 4 bearded dragon were included in the study. 2 cadavers were dissected following a stratigraphic approach and 2 cadavers were cross-sectioned for each species. These latter specimens were stored in a freezer (-20°C) until completely frozen. Transversal sections at 5 mm intervals were obtained by means of an electric band-saw. Each section was cleaned and photographed on both sides. Radiographs of the head of each subject were obtained. Pre- and post- contrast computed tomographic studies of the head were performed on all the live animals. CT images were displayed in both bone and soft tissue windows. Individual anatomic structures were first recognised and labelled on the anatomic images and then matched on radiographs and CT images. Radiographic and CT images of the skull provided good detail of the bony structures in all species. In CT contrast medium injection enabled good detail of the soft tissues to be obtained in the iguana whereas only the eye was clearly distinguishable from the remaining soft tissues in both the tegu and the bearded dragon. The results provide an atlas of the normal anatomical and in vivo radiographic and computed tomographic features of the heads of lizards, and this may be useful in interpreting any imaging modality involving these species.

  5. Comparative analysis of operation of the Kolubara-Prerada wet coal separation plant at Vreoci after its reconstruction. Uporedna analiza rada pogona mokre separacije Kolubara-Prerada u Vreocima nakon njegove rekonstrukcije

    Energy Technology Data Exchange (ETDEWEB)

    Djordjevic, Z.; Katic, M. (Kolubara-Prerada, Vreoci (Yugoslavia))

    1990-01-01

    Discusses technological and economic improvements achieved in the Kolubara-Prerada brown coal washing plant in Yugoslavia. The plant had a 3.16-3.46 Mt/a (1981-1988) production capacity and supplies coal to a Fleissner-type coal drying plant and to the Kolubara thermal power plant. Reconstruction of the wet coal washing plant eliminated stoppages in the coal loading station, in the gravitational coal concentration unit, in the coal washing unit and dense suspension (water/sand) generating unit. The reconstruction lead to a higher annual coal production of 4.05 Mt in 1989 and also to an increase in coal quality. Specific electricity consumption of the plant was reduced from 2.07 kWh/t (1988) to l.77 kWh/t (1989). Consumption of suspension sand was also lower. The view is held that annual production of the reconstructed plant can be increased to 4.5 Mt/a.

  6. Comparative evaluation of the cadaveric and computed tomographic features of the coelomic cavity in the green iguana (Iguana iguana), black and white tegu (Tupinambis merianae) and bearded dragon (Pogona vitticeps).

    Science.gov (United States)

    Banzato, T; Selleri, P; Veladiano, I A; Zotti, A

    2013-12-01

    Contrast-enhanced computed tomographic studies of the coelomic cavity in four green iguanas, four black and white tegus and four bearded dragons were performed using a conventional CT scanner. Anatomical reference cross sections were obtained from four green iguana, four black and white tegu and six bearded dragon cadavers; the specimens were stored in a -20°C freezer for 24 h then sliced into 5-mm intervals. The frozen sections were cleaned with water and photographed on both sides. The individual anatomical structures were identified by means of the available literature; these were labelled first on the anatomical images and then matched to the corresponding computed tomography images. The results provide an atlas of the normal cross-sectional and computed tomographic anatomy of the coelomic cavity in the green iguana, the black and white tegu and the bearded dragon, which is useful in the interpretation of any imaging modality. © 2013 Blackwell Verlag GmbH.

  7. Primjena nekih tehnoloških postupaka u cilju produženja roka trajnosti mlijeka i proizvoda od mlijeka

    OpenAIRE

    Niketić, Gordana

    1989-01-01

    U radu je prikazan utjecaj primjene pojedinih tehnoloških postupaka u cilju produženja roka trajnosti sirovog mlijeka, UHT steriliziranog mlijeka, fermentiranih mliječnih napitaka, koncentrata mlijeka i mlijeka u prahu.

  8. Prikaz 5. Internacionalne konferencije OTEH 2012 – odbrambene tehnologije

    OpenAIRE

    Vlado P. Đurković

    2013-01-01

    U članku su prikazani radovi i događanja na petoj internacionalnoj konferenciji OTEH 2012, odbrambene tehnologije, održanoj u Beogradu, u prostoru Vojnotehničkog instituta (VTI), u periodu od 18. do 19. septembra 2012. godine. U radu su prikazane sekcije po oblastima i dat prikaz predavanja po pozivu. Dat je i prikaz ustanova autora i koautora koji su aktivno učestvovali u radu kongresa iz R. Srbije.

  9. Inhibicijski učinak kozjega i kravljega mlijeka s dodatkom meda, fermentiranog s Bifidobacterium lactis Bb-12 na rast bakterije Listeria monocytogenes

    OpenAIRE

    Lučan, Mirela; Slačanac, Vedran; Hardi, Jovica; Mastanjević, Krešimir; Babić, Jurislav; Krstanović, Vinko; Jukić, Marko

    2009-01-01

    U radu je ispitivan utjecaj dodatka meda na tijek fermentacije kozjega i kravljega mlijeka probiotičkom bakterijom Bifidobacterium lactis Bb- 12. Također, ispitivan je utjecaj medom zaslađenoga fermentiranoga kozjega i kravljeg mlijeka na inhibicijsko djelovanje rasta bakterije Listeria monocytogenes. Mlijeku su dodavane dvije vrste meda - tamna vrsta kestenova meda i svijetla vrsta bagremova meda. Osnovna pretpostavka u radu bila je da dodatak meda može utjecati na tijek fermentacije kozjega...

  10. Proizvodnja i kakvoća domaćih istarskih kobasica

    OpenAIRE

    Bratulić, Mario; Cvrtila Fleck, Željka; Mikuš, Tomislav; Njari, Bela; Kozačinski, Lidija

    2011-01-01

    Sažetak U ovom radu prikazani su postupci tradicionalne proizvodnje domaćih istarskih kobasica. Postupci i recepture za proizvodnju kobasica u kućanstvu se razlikuju ovisno o domaćinstvu i obiteljskoj tradiciji. Prilikom izrade kobasica sva domaćinstva pridržavaju se osnovnih normativa proizvodnje, a u cilju kakvoće, trajnosti i ispravnosti proizvoda. U radu su prikazani rezultati senzorne, kemijske i mikrobiološke pretrage istarskih kobasica.

  11. Upravljanje položajem i brzinom elektromehaničkog aktuatora (EMA) za primjene u zračnom prostoru

    OpenAIRE

    TODIĆ, Ivana; MILOŠ, Marko; Pavišić, Mirko

    2013-01-01

    Težište ovog rada je upravljanje elektromehaničkim aktuatorom (EMA) za primjene u zračnom prostoru. Upravljanje EMA je ostvareno uporabom pozicijskog regulatora i upravljanja koje kombinira položaj i brzinu regulatora. Osnovna smjernica bila je smanjenje gubitaka snage, zagrijavanja i potrošnje struje u sustavu. Jedno od važnih područja u okviru pogona promjenljivim brzinama motora su operativne granice sustava. Danas se operativne granice pogona s promjenljivim brzinama motora postavljaju na...

  12. A comparison of UVb compact lamps in enabling cutaneous vitamin D synthesis in growing bearded dragons

    NARCIS (Netherlands)

    Diehl, J.J.E.; Baines, F.M.; Heijboer, A.C.; Leeuwen, van J.P.; Kik, M.; Hendriks, W.H.; Oonincx, D.G.A.B.

    2017-01-01

    The effect of exposure to different UVb compact lamps on the vitamin D status of growing bearded dragons (Pogona vitticeps) was studied. Forty-two newly hatched bearded dragons (<24 h old) were allocated to six treatment groups (n = 7 per group). Five groups were exposed to different UVb

  13. EMOCIONALNO NASILJE U OBITELJI ADOLESCENTA

    Directory of Open Access Journals (Sweden)

    Kristina Urbanc

    2002-11-01

    Full Text Available U radu je izneseno nekoliko problema vezanih uz teorijsko obrađivanje pojma emocionalnog zlostavljanja s obzirom na poteškoće definiranja ovog, prema nekim autorima, najsloženijeg oblika zlostavljanja, te s obzirom na poteškoće razgraničavanja, "mjerenja" i kategoriziranja pojedinih pojavnih oblika roditeljskog ponašanja koja možemo opisati kao emocionalno zlostavljanje. Osim toga u radu su iznesene neke osobitosti emocionalnog zlostavljanja u obiteljima adolescenata, kao i mehanizmi obrane selfa prilikom zlostavljanja djece i adolescenata. Na kraju autor govori o nekim aspektima uloge profesionalnih pomagača u radu s roditeljima čiji odnos s adolescentima ima obilježja emocionalnog zlostavljanja.

  14. Disease: H00223 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available H00223 Inherited thrombophilia Congenital thrombophilias are inherited disorders as... Tormene D, Spiezia L, Tognin G, Rossetto V, Radu C, Prandoni P Inherited thrombophilia and venous thromboem...bolism. Semin Thromb Hemost 32:700-8 (2006) PMID:16962914 Coppens M, Kaandorp SP, Middeldorp S Inherited thrombophilia...s. Obstet Gynecol Clin North Am 33:357-74 (2006) PMID:15331254 Feero WG Genetic thrombophilia... S, Bulato C, Iacobelli NP, Finn JD, Spiezia L, Radu C, Arruda VR X-linked thrombophilia with a mutant factor IX (factor IX Padua). N Engl J Med 361:1671-5 (2009) ...

  15. Ovisnost mladih o alkoholu i drogi

    OpenAIRE

    HUDOLIN, Vladimir

    1987-01-01

    Ovisnost o alkoholu i ovisnosti o drogama, iako imaju niz zajedničkih crta u praktičnom planiranju, prevenciji, liječenju i rehabilitaciji ovisnika, znatno se međusobno razlikuju. U radu je ukratko prikazana uglavnom ovisnost o alkoholu, a tek usput spomenuta i ovisnost o drogama. U praktičnom radu na suzbijanju alkoholom izazvanih poremećaja najveće poteškoće zadaju koncepti umjerenog pijenja kao društveno prihvaćenog stila života i koncept prema kojem bolest alkoholizma zahvaća predodređ...

  16. Sindromi prenaprezanja na potkoljenici i stopalu

    OpenAIRE

    Smerdelj, Miroslav; Madjarević, Mladen; OREMUŠ, KREŠIMIR

    2002-01-01

    U radu autori opisuju i objašnjavaju nastanak bolnih sindroma u području potkoljenice i stopala, vezanih uz profesiju odnosno sportsku aktivnost. Iznose se zapažanja i iskustva iz svakodnevne liječničke prakse, a i podaci iz novije medicinske literature. Značenje se daje liječenju koje je obično konzervativno, a od kirurških metoda naglasak se daje na nove manje invazivne metode. U radu su opisani najčešći sindromi prenaprezanja u području potkoljenice kao što su trkačka potkoljenica, sindrom...

  17. RAČUNALO- KOMUNIKACIJSKI IZAZOV DJECI PREDŠKOLSKE DOBI

    OpenAIRE

    Tatković, Nevenka; Ružić-Baf, Maja

    2011-01-01

    U radu se polazi od spoznaje da je računalo obrazovno-tehnološka inovacija čiji potencijali prelaze mogućnosti drugih medija. Uvodeći ga u domove, predškolske institucije i škole, ono postaje intelektualna alatka koja nosi obilježje vremena u kojem živimo. Uz teorijsko razmatranje teme, u radu su predstavljeni i rezultati empirijskog istraživanja stavova roditelja predškolske djece o učestalosti i aspektima primjene računala u predškolskoj dobi.

  18. IMITIRANJE SLOŽENIH POKRETA KOD ŠKOLSKE DJECE S POTEŠKOĆAMA U UČENJU

    OpenAIRE

    2010-01-01

    Razvojni koordinacijski poremećaj (DCD) je često zanemaren i u radu sa školskom djecom i u svakodnevnom radu s djecom. DCD podrazumijeva jedan ili cijeli heterogeni spektar razvojnih poremećaja koji utječu na inicijaciju, organizaciju i izvedbu nekog pokreta. Cilj ovog članka bio je privući pažnju na ovaj problem i dokazati da nastavnici različitih predmeta mogu vrlo lako prepoznati učenike s razvojnim koordinacijskim poremećajem. Brzo prepoznavanje omogućuje brzu intervenciju koja rezultira ...

  19. Komunikacija u industriji primjenom PROFINET protokola / Communication in industry by using the PROFINET protocol / Обеспечение связи в промышленности посредством применения протокола PROFINET

    Directory of Open Access Journals (Sweden)

    Adnan M. Mulaosmanović

    2015-04-01

    Full Text Available U ovom radu govorit će se o PROFINET komunikaciji koja se koristi u industriji za potrebe komunikacije između različitih elemenata unutar sistema praćenja i regulacije proizvodnih procesa. PROFINET protokol se temelji na industrijskom Ethernetu i omogućava korištenje TCP/IP standarda, čime se omogućavaju velike poslovne pogodnosti u toku životnog ciklusa proizvodnog pogona. Takođe, PROFINET se zasniva na svim iskustvima sa PROFIBUS-om, te ide korak dalje u svojoj fleksibilnosti poboljšavajući performanse. Sa PROFINET-om je omogućena integracija različite upravljačke opreme od pogonskog nivoa pa sve do kontrolnog nivoa. Koncept PROFINET-a zadovoljava sve zahtjeve industrijske automatizacije i može se koristiti za procesnu automatizaciju koja zahtjeva brzo vrijeme reakcije, tj. vremena ispod 100 ms. Za potrebe drugih aplikacija, kao što je sinhronizirana kontrola kretanja, omogućeno je vrijeme reakcije manje od 1 ms, a za potrebe sigurnosnih aplikacija moguće je koristiti PROFIsafe koji je integrisan u PROFINET. / This paper is about the PROFINET communication used in industry for the purposes of communication between different elements within systems of monitoring and control of production processes. The PROFINET protocol is based on industrial Ethernet and allows the use of TCP / IP standards, which allows big business benefits during the life cycle of a manufacturing plant. Also, PROFINET is based on all the experiences with PROFIBUS, and goes a step further in its flexibility, improving performances. PROFINET enables the integration of various control equipment from the factory level to the control level. The concept of PROFINET satisfies all the requirements of industrial automation, and can be used for process automation that requires quick response time, i.e. the time below 100ms. For the purposes of other applications such as synchronized motion control,it enables a response time of less than 1 ms, and for safety

  20. Bagatellid : maailm / Mailis Põld

    Index Scriptorium Estoniae

    Põld, Mailis

    2006-01-01

    Muusikasõnumeid mujalt maailmast: Matusemuusikust ooperidiiva Erika Sunnegardh. Lionel Bringuier - noor talent dirigentide seas. Riccardo Muti naudib vabakutselise staatust. Mstislav Rostropovitsh lõpetab sooloesinemised. Lahkumisest on teatanud maestro Wolfgang Sawallisch. Arturo Benedetti Michelangeli preemia läheb sel aastal rumeenlasele pianist Radu Lupule.

  1. Bagatellid : maailm / Mailis Põld

    Index Scriptorium Estoniae

    Põld, Mailis

    2006-01-01

    Muusikasõnumeid mujalt maailmast: Matusemuusikust ooperidiiva Erika Sunnegardh. Lionel Bringuier - noor talent dirigentide seas. Riccardo Muti naudib vabakutselise staatust. Mstislav Rostropovitsh lõpetab sooloesinemised. Lahkumisest on teatanud maestro Wolfgang Sawallisch. Arturo Benedetti Michelangeli preemia läheb sel aastal rumeenlasele pianist Radu Lupule.

  2. Kontserdihooaeg toob kireva kava / Silja Joon

    Index Scriptorium Estoniae

    Joon, Silja, 1966-

    2007-01-01

    Pärnu kontserdimaja algavast kontserdihooajast: 22. sept.avakontsert "Pärt Pärnus", 13. okt.Four Freshmen, märtsis A'Cappella ExpreSSS, 3. apr. Voiceboys, veebr. Radu Marian ja Trio Barocco, 30. dets. Hennessy aastalõpukontsert, 12. apr. "Rock ja raga"

  3. Kada HACCP-sustav može zatajiti

    OpenAIRE

    Bystrický, Pavel

    2005-01-01

    HACCP-sustav je sustav upravljanja sigurnošću hrane. Njegova je primjena obvezna u mnogim zemljama EU. U ovom radu ukazano je na neke od mogućih razloga zatajenja HACCP sustava do kojeg može doći usprkos dobrim namjerama da se sustav ispravno razvije i postavi.

  4. Kontserdihooaeg toob kireva kava / Silja Joon

    Index Scriptorium Estoniae

    Joon, Silja, 1966-

    2007-01-01

    Pärnu kontserdimaja algavast kontserdihooajast: 22. sept.avakontsert "Pärt Pärnus", 13. okt.Four Freshmen, märtsis A'Cappella ExpreSSS, 3. apr. Voiceboys, veebr. Radu Marian ja Trio Barocco, 30. dets. Hennessy aastalõpukontsert, 12. apr. "Rock ja raga"

  5. ELISA u analitici hrane

    OpenAIRE

    Runje, Mislav; Cvrtila, Željka

    2006-01-01

    U radu su prikazane neke od mogućnosti korištenja “screening” testa ELISA u analitici namirnica. Utvrđivanje vrsta mesa u toplinski obrađenim ili, pak, toplinski neobrađenim proizvodima jedna je od primjena ELISA testova.

  6. Introduction Pages and Table of Contents

    Directory of Open Access Journals (Sweden)

    Radu E. SESTRAS

    2015-03-01

    Consumer Perception Concerning Apple Fruit Quality, Depending on Cultivars and Hedonic Scale of Evaluation - a Case Study PDF Cătălina DAN, Corina ȘERBAN, Adriana F. SESTRAŞ, Mădălina MILITARU, Paula MORARIU, Radu E. SESTRAŞ 140-149

  7. Sposobnost opstanka informacionih sistema

    OpenAIRE

    Bosko Rodic; Dejan Vuletic

    2005-01-01

    U radu je opisan znacaj i trend razvoja informacionih sistema u savremenom drustvu, a definisani su i drugi znacajni pojmovi radi boljeg razumevanja problema. Prikazana su i cetiri aspekta resenja sposobnosti opstanka informacionih sistema koje predlaze Computer Emergency Response Team (CERT).

  8. CERN openlab Summer Students Lightning Talks

    CERN Document Server

    CERN. Geneva

    2013-01-01

    15:35 - Rules and logistics (Alberto Di Meglio) 15:45 - Presentations (Session 1) 15:45 - Regressive network system testing (Adam Krajewski) 15:51 - The ViSION Health Monitor (Andrei Radu Patrascoiu) 15:57 - Improved metrics collection and visualization for the CERN cloud storage test framework (Carolina Lindqvist) 16:03 - Vectorization with Haswell and Cilk+ (Juan Jo...

  9. Putokazi modernizacije pilger postrojenja

    Directory of Open Access Journals (Sweden)

    Devčić, N.

    2007-01-01

    Full Text Available Da bi opstao i zadržao prednost izradbe bešavnih cijevi u odnosu na suvremene valjaonice, kod pilger postupka treba povećati produktivnost, smanjiti troškove prerade i posebice poboljšati kakvoću i površinu cijevi. U članku se daje mogućnost modernizacije pilger stana (pogona, kućišta, posmaka cijevnice, itd..

  10. Comparação de levobupivacaína em raquianestesia contínua ou com dose única para cirurgia de ressecção transuretral de próstata

    Directory of Open Access Journals (Sweden)

    Yunus Baydilek

    2014-04-01

    Full Text Available Justificativa e objetivo: comparar a eficácia de levobupivacaína na indução de raquianestesia contínua (RAC versus dose única (Radu em pacientes programados para ressecção transuretral de próstata (RTUP. Métodos: foram incluídos no estudo 50 pacientes, ≥ 60 anos, ASA I-II ou III. Levobupivacaína a 0,5% (12,5 mg foi administrada por via intratecal no grupo Radu. No grupo RAC, levobupivacaína a 0,25% (2 mL foi inicialmente administrada através de cateter espinhal. Para o nível de bloqueio sensorial atingir o dermátomo T10, 1 mL adicional de levobupivacaína a 0,25% foi administrado através do cateter a cada 10 minutos. Os parâmetros hemodinâmicos e as características do bloqueio foram registrados. Amostras de sangue dos pacientes foram coletadas nos períodos pré- e pós-operatórios para determinar os níveis plasmáticos de cortisona e adrenalina. Resultados: a RAC proporcionou melhor estabilidade hemodinâmica em comparação com a Radu, particularmente aos 90 minutos após a administração intratecal. O aumento do nível de bloqueio sensorial foi rápido e o tempo para atingir a anestesia cirúrgica foi menor no grupo Radu. O desenvolvimento do bloqueio motor foi mais rápido no grupo Radu. No grupo RAC, um nível semelhante de anestesia foi obtido com o uso de uma dose mais baixa de levobupivacaína, que foi relacionada à recuperação mais rápida. Embora ambas as técnicas tenham sido eficazes na prevenção da resposta ao estresse cirúrgico, os níveis de cortisona no pós-operatório foram mais suprimidos no grupo Radu. Conclusão: a técnica RAC com levobupivacaína a 0,25% pode ser usada como um método de anestesia regional em pacientes idosos programados para RTUP.

  11. Some connectedness problems in positively curved Finsler manifolds

    Science.gov (United States)

    Peter, Ioan Radu

    2009-01-01

    This paper studies some connectedness problems under the positivity hypothesis of various curvatures ( k-Ricci and flag curvature). Our approach uses Morse Theory for general end conditions (see [Ioan Radu Peter, The Morse index theorem where the ends are submanifolds in Finsler geometry, Houston J. Math. 32 (4) (2006) 995-1009]). Some previous results related to the flag curvature were obtained in [Ioan Radu Peter, A connectedness principle in positively curved Finsler manifolds, in: H. Shimada, S. Sabau (Eds.), Advanced Studies in Pure Mathematics, Finsler Geometry, Sapporo 2005-In Memory of Makoto Matsumoto, Mathematical Society of Japan, 2007]. Some results from Riemannian geometry are extended to the Finsler category also. The Finsler setting is much more complicated and the difference between Finsler and Riemann settings will be emphasized during the paper.

  12. Građa za enciklopedijski rječnik hrvatskoga analitičkog nazivlja. Dio I. Načela i polazište

    OpenAIRE

    Grdinić, V

    2010-01-01

    U radu su prikazana načela i polazišta izgradnje enciklopedijskog rječnika iz područja analitičke kemije proširene na cijelo novije znanstveno područje poznato pod nazivom analitika. Stoga će i usmjerenost, izbor, ustroj i obim leksičkih jedinica za enciklopedijski rječnik biti zadan takvim znanstvenim i stručnim činjenicama. Utvrđena načela i prikazane metode mogu pomoći u radu na izradi hrvatskoga analitičkog rječnika i podupirati djelatnosti koje obuhvaćaju usustavljivanje i encikloped...

  13. Vinac Marijana Jaića Molitvenik ili dio kućne baštine

    OpenAIRE

    Blažević, Krešimir

    2006-01-01

    U ovom članku želio sam pokazati kako se mnoge stvari mogu i moraju redefinirati i nanovo razjasniti u recentno vrijeme. Marijan Jaić, vjerojatno najtiražniji hrvatski pisac, dugo godina je bio u zapećku proučavanja hrvatske književnosti. Iako je zanimanje za Jaića u posljednjih desetak ili petnaest godina naraslo (napisano je puno knjiga o njemu i njegovu radu), još uvijek nije njegov rad do kraja obrađen i prostora za istraživanje o Jaićevu radu još uvijek ima. Jaić možda i nije književnik ...

  14. Prikupljanje i obrada prostornih podataka u GIS-u za potrebe uspostave i održavanja jedinstvene evidencije i registra prostornih jedinica : Collection and processing of spatial data in GIS for the purpose of establishing and maintaining an unique record and register of spatial units

    Directory of Open Access Journals (Sweden)

    Elma Kurt

    2012-06-01

    Full Text Available Ovim radom dat je osvrt na značaj i ulogu GIS-a za potrebe uspostave i održavanja jedinstvene evidencije i registra prostornih jedinica (JERPJ-a. U radu su opisani osnovni GIS alati neophodni za realizaciju zadataka prilikom prikupljanja i obrade prostornih podataka. U radu se također nastojala prikazati uloga geodete (kartografa u procesu uvođenja i vođenja JERPJ-a. : This work gives an overview on importance and the role of the GIS for the needs of setting up and maintenance of the Single Register of Sapital Units. The article describes the main GIS tools needed for implementation of the tasks during collection and processing of spatial data. Also, the article demonstrates the role and importance of geodesisit (cartographer in the process of introduction and management of the Single Register of Spatial Units.

  15. ALTERNATIVNI VIDOVI TRANSATLANTSKE I SVETSKE SARADNJE

    Directory of Open Access Journals (Sweden)

    Radomir Stojković

    2013-12-01

    Full Text Available Integracioni procesi, biopolarna podela sveta, ali i nestajanje iste i postepeno uvođenje multilateralizma u međunarodnim (ekonomskim odnosima obeležili su drugu polovinu prošloga veka ali su i generalna karakteristika sadašnjice. U radu su predstavljeni i objašnjeni vidovi transatlantske i globalne saradnje kojima je malo pažnje posvećeno u domaćoj literaturi. Neformalni integracioni procesi, u vidu Grupe 8 i Grupe 20, kao i sve zapostavljenija Grupa 77 koja egzistira u okviru Organizacije Ujedinjenih nacija predmet su analize ovog rada. Zbog specifičnosti i načina organizacije svoje delatnosti predstavljene „grupe“ u radu su označene kao alternativni vidovi saradnje.

  16. ODRŽAVANJE GRAĐEVINA-PRIMJERI NAJBOLJE PRAKSE

    OpenAIRE

    Horvat, Vedran

    2016-01-01

    U radu je opisan i definiran sustav održavanja i gospodarenja građevinama. Navedene su i objašnjene različite metode planiranja i organiziranja održavanja građevina, prikazan je primjer dnevnog planiranja u organizaciji poduzeća te je objašnjena važnost i utjecaj planiranja održavanja na poslovanje poduzeća. Također, u radu je analizirano istraživanje provedeno na nekoliko veleučilišta s najčešćim problemima koji se javljaju u procesima održavanja građevina i smjernicama za njihovim rješa...

  17. Ustrojstvo javnih službi u europskom pravnom poretku

    Directory of Open Access Journals (Sweden)

    Mirko Klarić

    2011-04-01

    Full Text Available Predmet ovog rada je novo ustrojstvo javnih službi u europskim pravnim sustavima, do kojeg dolazi sukladno odredbama Sporazuma o uspostavi Europske Unije. U radu se analizira postupna transformacija postojećeg modela javnih služb, i uspostava novog koncepta javnih službi, koji se očituje u stvaranju tzv. „službi od općeg gospodarskog interesa“. U radu će se posvetiti pozornost stajalištu Europske Komisije vezanim uz novi koncept službi od općeg gospodarskog interesa, a koje je prezentirano kroz više objavljanih dokumenata. Posvetiti će se pozornost i stajalištu Europskog Suda Pravde, koji je kroz sudsku praksu postavio parametre za razlikovanje gospodarskih od negospodarskih javnih službi.

  18. Econophysics: Background and Applications in Economics Finance, and Sociophysics

    OpenAIRE

    Constantin Manea

    2013-01-01

    Ever since the official birth of the new transdisciplinaryfield of econophysics, whose admitteddate is the very beginning of the last decade of thetwentieth century, a number of Romanian researchershave authored some highly appreciated and frequentlycited papers published in international literature,especially articles. Such authors whom we couldmention, in a purely random selection, and inalphabetical order only, are Mircea Bulinski, RaduChişleag, Adrian Drăgulescu, Mircea Gligor,Margareta I...

  19. Prije- i poslijeratna radna motivacija učitelja u ratom zahvaćenim područjima Hrvatske

    OpenAIRE

    Rijavec, Majda; MILJEVIĆ RIĐIČKI, Renata

    2000-01-01

    Cilj ove studije bio je: a) odrediti čimbenike koji motiviraju i demotiviraju učitelje osnovnih škola u područjima zahvaćenima ratom, b) usporediti ih s motivatorima i demotivatorima u prijeratnom razdoblju i c) usporediti učiteljsko samoocjenjivanje motivatora i demotivatora s njihovom percepcijom motivatora i demotivatora koji djeluju na njihove kolege u prije i poslijeratnom razdoblju. Upitnik je sastavljen kako bi se procijenili motivatori i demotivatori u radu osn...

  20. Overhydration, Cardiac Function and Survival in Hemodialysis Patients

    OpenAIRE

    Mihai Onofriescu; Dimitrie Siriopol; Luminita Voroneanu; Simona Hogas; Ionut Nistor; Mugurel Apetrii; Laura Florea; Gabriel Veisa; Irina Mititiuc; Mehmet Kanbay; Radu Sascau; Adrian Covic

    2015-01-01

    RESEARCH ARTICLE Overhydration, Cardiac Function and Survival in Hemodialysis Patients Mihai Onofriescu1☯, Dimitrie Siriopol1☯, Luminita Voroneanu1, Simona Hogas1, Ionut Nistor1, Mugurel Apetrii1, Laura Florea1, Gabriel Veisa1, Irina Mititiuc1, Mehmet Kanbay3, Radu Sascau2, Adrian Covic1* 1 Department of Nephrology, University of Medicine and Pharmacy “Gr. T. Popa”, Iasi, Romania, 2 Department of Cardiology, University of Medicine and Pharmacy “Gr. T. Popa”, Iasi, Romania...

  1. Sol-gel sinteza i magnetne osobine nanočestičnog hematita

    OpenAIRE

    Tadić M. Marin; Čitaković M. Nada

    2010-01-01

    U radu je prikazano istraživanje magnetnih karakteristika nanočestičnog feri-oksida, α-Fe2O3 (hematita), koji ispoljava superparamagnetne karakteristike tj. superparamagnetizam. Prikazano je nanočestično ponašanje uzoraka, upoređene su karakteristike nanočestičnog materijala sa materijalom visokog kristaliniteta i prikazan je uticaj veličine nanočestica na magnetne karakteristike.

  2. Mehanokemija i priprema nanokristaliničnih materijala

    OpenAIRE

    2004-01-01

    U radu su prikazane mogućnosti primjene mehanokemije na procese ekstrakcije u metalurgiji i znanosti o materijalima. Za primjer takve primjene mehanokemije u fizičkoj kemiji i metalurgiji ekstrakcije odabrani su oksidacija površine mehanički aktiviranih sulfida, apsorpciona svojstva CaCO3 nakon mehaničkog aktiviranja, izdvajanje zlata luženjem prethodno mehanokemijski pripremljenog kompleksnog koncentrata Cu-Pb-Zn i pilot-pogonskog testiranja mehanokemijske tehnologije (proces MELT). Mehanoke...

  3. Usporedba rezultata revizije informacijskih sustava provedenih prema CobiT okviru i uvod u CobiT 5 okvir

    OpenAIRE

    Varga, Matija; Varga, Vesna

    2011-01-01

    Ovim radom prikazana je revizija informacijskih sustava odabrane tvrtke, te okvir za korporativno upravljanje informatikom CobiT. U radu su nabrojane aplikacije, tj. moduli koji se koriste u promatranoj tvrtki. Spomenute su aktivnosti obavljene revizije, te je opisano značenje revizije informacijskih sustava i interne revizije. Prikazan je program stručnog usavršavanja za zvanje interni revizor informacijskih sustava i primjeri pripreme i provedbe revizije informacijskih sustava promatrane tv...

  4. “Tog sretnog dana...” – Uz 440. obljetnicu Lepantske bitke

    OpenAIRE

    Kužić, Krešimir

    2011-01-01

    Autor se u prvom dijelu radu osvrnuo na djela domaćih suvremenika s temom Lepantske bitke. U drugom dijelu prikazan je razlog okupljanja flote Svete lige, njena taktika i stanje pojedinih eskadri prije polaska iz Messine. Nakon toga je rekonstruiran učinak pojedinih galija iz hrvatskih krajeva, zbivanja tijekom bitke, a revidirane su i zasluge glavnih zapovjednika. Na kraju je dan ispravak i dopuna oznaka, tzv. imena, pod kojima su se borile galije iz hrvatskih gradova.

  5. Utjecaj erupcije vulkana Kuwae 1452.-1453. na hrvatske zemlje

    OpenAIRE

    Kužić, Krešimir

    2012-01-01

    U radu je prikazan utjecaj erupcije vulkana Kuwae na vremenske prilike u hrvatskim zemljama. Uslijed toga je u nizu godina propala ljetina, što je dovelo do gladi i migracija, te u konačnici do epidemije kuge proširene pomorskim i kopnenim pravcima. Analiziran je i kompariran sustav zaštite od gladi te sprječavanja širenja kuge u primorskim gradovima i kopnenom zaleđu istočnojadranske obale.

  6. Piracetam u liječenju vrtoglavice

    OpenAIRE

    2000-01-01

    Piracetam (Oikamid®) je višestruko primjenljiv lijek čija upotreba traje više od 25 godina. U radu su opisana obilježja piracetama (Oikamid®) kao lijeka i vrtoglavice kao simptoma koji se liječi. Istaknuti su rezultati nekoliko studija o mogućnostima primjene i korisnosti piracetama (Oikamid®) u terapiji vrtoglavice.

  7. East Europe Report, Political, Sociological and Military Affairs, No. 2150

    Science.gov (United States)

    2007-11-02

    National Technical Information Service, Springfield, Virginia 22161. In order- ing, it is recommended that the JPRS number, title, date and author...Publications Research Service, 1000 North Glebe Road, Arlington, Virginia 22201. JPRS 83641 9 June 1983 East Europe Report POLITICAL...Vacarescu—2; Anton Pann—1; Heliade Radu- lescu—1; V. Cirlova—1; Gr. Alexandrescu—3 ("The Year 1840" and "A Satire on My Soul," translator Lorinc

  8. Meteorites from Cluj-Napoca

    Science.gov (United States)

    Radu, Gelu; Pop, Dana

    2003-04-01

    The article represents an interview of the journalist Gelu Radu with the director of the Meteorites Museum from the Geological Faculty of the Cluj-Napoca University (Romania) Dana Pop concerning the History, Collection and Actual state of an unique in Romania Meteorites Museum, founded in 1882 after the fall of the Mociu Meteorit (Cluj County) on 3 february 1882. One discusses about the collection of the Museum and the policy of changes with other similar museums throughout the world.

  9. Microsoft project

    OpenAIRE

    Markić, Lucija; Mandušić, Dubravka; Grbavac, Vitomir

    2005-01-01

    Microsoft Project je alat čije su prednosti u svakodnevnom radu nezamjenjive. Pomoću Microsoft Projecta omogućeno je upravljanje resursima, stvaranje izvještaja o projektima u vremenu, te analize različitih scenarija. Pojavljuje u tri verzije: Microsoft Project Professional, Microsoft Project Server i Microsoft Project Server Client Access Licenses. Upravo je trend da suvremeni poslovni ljudi zadatke povjeravaju Microsoft Projectu jer on znatno povećava produktivnost rada. Te prednos...

  10. Analiza niskofrekventnog spektra vibracija na elementima strukture helikoptera „gazela“

    OpenAIRE

    Jovanović M. Miroslav

    2010-01-01

    U radu je prikazan postupak i metodologija ispitivanja vibracija na helikopteru „gazela“ radi definisanja efikasnosti prigušenja vibracija na vezi struktura – sedište pilota. Posebna pažnja posvećena je teorijskim osnovama vibracija na helikopteru, određivanju radnih frekvencija, definisanju režima rada i profila leta helikoptera u toku ispitivanja. Na kraju rada prikazani su rezultati merenja vibracija u frekventnom domenu.

  11. Jedan odlomak iz povijesti suradnje Japana i Hrvatske : Hrvatska pjesma «U boj» i japanski muški zbor

    OpenAIRE

    SHIBA, Nobuhiro

    2008-01-01

    U svojem radu autor je prikazao kako je pjesma «U boj» iz opere «Nikola Šubić Zrinski» hrvatskog kompozitora Ivana Zajca došla u Japan te kako se proširila među japanskim muškim zborovima i postala obveznim dijelom njihova repertoara. Također prikazuje potragu za korijenima ove pjesme.

  12. Razvoj i funkcije kupovnih centara u Zadru

    OpenAIRE

    Jakovčić, Martina; Rendulić, Ivica

    2008-01-01

    U radu je prikazan razvoj kupovnih centara u gradu Zadru. Kupovni centri klasificirani su na trgovačke centre, hipermarkete, specijalizirane hipermarkete te trgovačke centre-hipermarkete ovisno o sadržajima i funkcijama. Osim toga izrađena je i tipologija kupovnih centara prema lokaciji u gradu. Funkcije kupovnih centara analizirane su na osnovi rezultata ankete provedene u kupovnim centrima City Galleriji – Trgovinskom centru Relja i Mercatoru.

  13. Nordijski hodočasnici u hrvatskim primorskim krajevima (14. – 17. stoljeće)

    OpenAIRE

    Kužić, Krešimir

    2015-01-01

    U radu su prikazani hodočasnici iz nordijskih zemalja koji su prošli hrvatskom obalom Jadrana na putu za Svetu Zemlju. Opisani su motivi njihova odlaska, staleška pripadnost te doživljaji tijekom putovanja. Osim nekih specifičnosti u tome pogledu nema većih odstupanja od svjedočanstava ostalih europskih, posebice njemačkih hodočasnika kasnoga srednjeg i ranoga novog vijeka.

  14. Usporedba rezultata revizije informacijskih sustava provedenih prema CobiT okviru i uvod u CobiT 5 okvir

    OpenAIRE

    2011-01-01

    Ovim radom prikazana je revizija informacijskih sustava odabrane tvrtke, te okvir za korporativno upravljanje informatikom CobiT. U radu su nabrojane aplikacije, tj. moduli koji se koriste u promatranoj tvrtki. Spomenute su aktivnosti obavljene revizije, te je opisano značenje revizije informacijskih sustava i interne revizije. Prikazan je program stručnog usavršavanja za zvanje interni revizor informacijskih sustava i primjeri pripreme i provedbe revizije informacijskih sustava promatrane tv...

  15. POUZDANOST POMORSKIH KARATA I NAVIGACIJSKIH PUBLIKACIJA, UTJECAJ PRAVA

    OpenAIRE

    Kasum, Josip; Bićanić, Zlatimir; Perkušić, Ante

    2005-01-01

    U radu se određuje pojam pouzdanosti pomorskih karata i navigacijskih publikacija u papirnatom ili elektroničkom obliku. Temeljnim odrednicama pouz-danosti valja držati točnost, pravodobnost i nedvojbenost informacijskim sadržajem prikazanih podataka. Definira se pojam životnog vijeka pomorskih karata i navigacijskih publikacija. U vezi s utjecajem na pouzdanost analizira se međunarodna i nacionalna pravna utemeljenost izrade pomorskih karata i navigacijskih publikacija.

  16. Analiza kontinualnih frekvencijski modulisanih radarskih signala primenom vremensko-frekvencijskih transformacija i korelacionih tehnika / FMCW radar signal analysis by time-frequency representations and correlation techniques

    OpenAIRE

    Slobodan Simić

    2007-01-01

    U radu su analizirana dva metoda za detekciju i procenu parametara radarskih signala s malom verovatnoćom presretanja, pri čemu ne postoji saradnja između prijemnika i predajnika. Prvi algoritam čini analiza signala pomoću vremensko-frekvencijskih transformacija zajedno sa tehnikama za prepoznavanje oblika. U osnovi drugog algoritma detekcije je procena periodične autokorelacione funkcije. Analizirani su kontinualni frekvencijski modulisani radarski signali (FMCW), često primenjivani u radari...

  17. O liturgijskom ruhu u fundusu Gradskog muzeja Varaždin

    OpenAIRE

    Mesek, Ariana

    2012-01-01

    U ovome radu autorica donosi pregled razvoja i mijene oblika liturgijskog ruha kroz povijest, simboliku liturgijskih boja, govori o svilenim tkaninama u liturgiji te osnovnim uzrocima njihova propadanja. Nadalje, daje pregled razvoja tekstilne proizvodnje i dekorativne motivike od samih početaka proizvodnje na europskom tlu. Na pregledan način donosi tipologiju motiva prisutnih na tkaninama od kojih je izrađeno liturgijsko ruho koje se nalazi u fundusu Gradskog muzeja Varaždin uz opis svakog ...

  18. Reconciling Intelligence Effectiveness and Transparency: The Case of Romania (Strategic Insights, Volume 6, Issue 3, May 2007)

    Science.gov (United States)

    2007-05-01

    such as former president Ion Iliescu, Corneliu Vadim Tudor (current leader of the nationalist Romania Mare (Greater Romania) Party), without forgetting...ale securistilor, de 10 ori mai mari decat ale victimelor” (“Secret Income of the Securisti, Ten Times as high as the Victims”), Romania Libera...friendly eyes,” Nine o’Clock, September 27, 2006, and Radu Tudor , “Tinerete, haine grele” (“Too Much for the Young to Bear”), Saptamana Financiara, No. 81

  19. Marketinška logistika jugoslavenskih poduzeća u saobraćaju EZ-a

    Directory of Open Access Journals (Sweden)

    Henrik Oblak

    2012-10-01

    Full Text Available U radu se razmatra privredni razvoj članica EZ i njegov utjecaj na Jugoslaviju, te kakve su šanse jugoslavenskih poduzeća u konkurenciji s onima iz EZ s obzirom na očito nejednake startne pozicije. Ukazuje se na nužnost marketinške logistike u poslovanju s firmama iz EZ, pri čemu je najvažnija dostupnost relevantnih informacija u pravo vrijeme.

  20. NOVOUTVRĐENE VRSTE BOŽJIH OVČICA (Coleoptera: Coccinellidae) U HRVATSKOJ

    OpenAIRE

    Jelovčan, Siniša; IGRC BARČIĆ, Jasminka; Gotlin Čuljak, Tanja

    2007-01-01

    U radu su opisane novoutvrđene vrste božjih ovčica u Hrvatskoj. Skupljene su tijekom trogodišnjeg istraživanja (2001-2003) pomoću metode otresanja grana i vizualnim pregledom biljaka na prisutnost božjih ovčica. Utvrđene su vrste: Coccinulla sinuatomarginata (Faldermann, 1837) i Epilachna argus (Geoffroy, 1785).

  1. Primena SWOT analize na sistem integralnog transporta Vojske Srbije / SWOT analysis of the intermodal transportation system in the Army of Serbia

    Directory of Open Access Journals (Sweden)

    Dragan S. Pamučar

    2008-04-01

    Full Text Available U radu je prikazana primena SWOT analize na sistem integralnog transporta Vojske Srbije. Kao rezultat analize predstavljeni su ciljevi daljeg usavršavanja integralnog transporta, kao i mogući problemi generisani strateškim upravljanjem. / This work presents the SWOT analysis application to the intermodal transportation system in the Army of Serbia. The analysis resulted in defining goals for the future development of intermodal transportation, as well as possible problems generated by strategic management.

  2. Best of Tshehhov. Best before / Ott Karulin

    Index Scriptorium Estoniae

    Karulin, Ott, 1980-

    2006-01-01

    Analüüsitakse A. Tšehhovi näidenditel "Kolm õde" ja "Kirsiaed" põhinevaid erinevaid lavastusi - Kristian Smedsi ja Radu Afrimi "Kolm õde" Tampere "Teatrisuvel" ning Rimas Tuminase "Kolme õde" Leedu teatrifestivalil "Sirenos", Sasha Pepeljajevi "Kirsiaeda" NO99 teatris, Roman Baskini "Kirsiaeda" Vanalinnastuudios ja Mati Undi "Kirsiaeda" Vanemuises, samuti Mikk Mikiveri "Tšehhovi kolme õde" (autor Per Olov Enquist) Vanemuises

  3. Identitet marke proizvoda – čimbenik uspješnog tržišnog položaja marke proizvoda

    OpenAIRE

    Lijović, Branislav

    2012-01-01

    U ovom se radu polazi od pojma identita marke proizvoda kao nove paradigme marketinga. Cilj ovoga rada je definiranje pojma identiteta marke proizvoda i negovoga značenja za ostvarenje tržišne vrijednosti marke proizvoda i ukupnih marketing ciljeva gospodarskog subjekta. Identitetom marke proizvoda i kombinacijom njegovih elemenata implementira se strategija gospodarskog subjekta i željeno tržišno pozicioniranje marke proizvoda. Sustavnim kreiranjem i upravljanjem identitetom mark...

  4. Interoperabilna kartografska baza podataka

    OpenAIRE

    Ključanin, Slobodanka; Galić, Zdravko

    2007-01-01

    U radu se razmatra koncept izrade prototipa interoperabilne kartografske baze podataka, mogućnosti integracije različitih geoprostornih podataka u sustav za upravljanje bazom podataka i njihova vizualizacija na internetu. Implementacija obuhvaća vektorizaciju sadržaja jednog lista karte, kreiranje kartografske baze podataka u objektno-relacijskoj bazi podataka, prostorne analize, definiranje i vizualizacije sadržaja baze podataka u obliku karte na internetu.

  5. Određivanje sastava hlapljivih tvari i flavonoida u kori citrona (Citrus medica L. var. Corsican), za procjenu kakvoće likera

    OpenAIRE

    2014-01-01

    U radu je ispitan sastav hlapljivih tvari i flavonoida u kori citrona (Citrus medica L. var. Corsican) uzgojenog na Korzici, različitog stupnja zrelosti izračunatog pomoću sume aktivnih temperatura. Razlike u stupnju razvoja plodova kvantitativno su određene plinskom kromatografijom, plinskom kromatografijom u kombinaciji s masenom spektrometrijom, te tekućinskom kromatografijom praćenom tandemskom masenom spektrometrijom. Identificirano je 30 hlapljivih komponenata eteričnog ulja dobivenog i...

  6. Best of Tshehhov. Best before / Ott Karulin

    Index Scriptorium Estoniae

    Karulin, Ott, 1980-

    2006-01-01

    Analüüsitakse A. Tšehhovi näidenditel "Kolm õde" ja "Kirsiaed" põhinevaid erinevaid lavastusi - Kristian Smedsi ja Radu Afrimi "Kolm õde" Tampere "Teatrisuvel" ning Rimas Tuminase "Kolme õde" Leedu teatrifestivalil "Sirenos", Sasha Pepeljajevi "Kirsiaeda" NO99 teatris, Roman Baskini "Kirsiaeda" Vanalinnastuudios ja Mati Undi "Kirsiaeda" Vanemuises, samuti Mikk Mikiveri "Tšehhovi kolme õde" (autor Per Olov Enquist) Vanemuises

  7. Standardizacija materijalnih sredstava u Severnoatlantskom savezu / Materiel standardization in North Atlantic Treaty Organisation

    Directory of Open Access Journals (Sweden)

    Miroslav Glišić

    2005-11-01

    Full Text Available U radu je prikazan proces standardizacije materijalnih sredstava u Severnoatlantskom savezu kroz sagledavanje njegovog mesta i uloge u okviru zajedničke standardizacije, koja se realizuje radi dostizanja interoperabilnosti između vojnih snaga zemalja uključenih u evroatlantske integracije. / This paper presents a process of materiel standardization in the North Atlantic Treaty Organization through analysis of its place and role in common standardization process that should achieve interoperability between allied forces.

  8. Manipulacija rezultatima sportskih natjecanja - kaznenopravna odgovornost za kazneno djelo prijevare

    Directory of Open Access Journals (Sweden)

    Matko Pajčić

    2011-12-01

    Full Text Available Manipulacija rezultatima sportskih natjecanja ima povijest vjerojatno jednako dugu kao i sport sam; međutim za pretpostaviti je da se prije radilo o rijetkim, izoliranim slučajevima. No, u novije vrijeme, a kao posljedica velike komercijalizacije sporta, takvo postupanje, koje je u pravilu koruptivne prirode, sve je učestalije. Riječ je o pojavi koja je vrlo često povezana s klađenjem, no ne nužno, budući da su prisutna i namještanja rezultata isključivo s ciljem postizanja određenog sportskog rezultata, npr. ostanka u određenom rangu natjecanja ili slično. U radu se razmatraju pojavni oblici tih radnji te mogućnosti kažnjavanja počinitelja navedenih protupravnih radnji temeljem normi kaznenog prava. Od više mogućnosti uspostavljanja kaznenopravne odgovornosti za više različitih kaznenih djela, u ovom radu će biti razmotrena samo kaznenopravna odgovornost za kazneno djelo prijevare, dok će razmatranje drugih kaznenih djela pod koja se obično povezuju s namještanjem rezultata sportskih natjecanja (primanje mita, davanje mita, udruživanje za počinjenje kaznenih djela, protupravno posredovanje, zlouporaba položaja i ovlasti i dr. biti predmet potanjeg razmatranja u posebnom radu.

  9. Programski paket za realizaciju procene profesionalnog rizika na radnom mestu / Software package for risk assessment in the workplace

    Directory of Open Access Journals (Sweden)

    Zoran Novaković

    2008-04-01

    Full Text Available Zakon o bezbednosti i zdravlju na radu donosi niz novih obaveza poslodavaca, među kojima se, po značaju i složenosti, izdvajaju aktivnosti vezane za izradu Akta o proceni rizika na svim radnim mestima. Inicijalizacija projekta izrade softverskog paketa za procenu rizika na radnom mestu i u radnoj okolini izvršena je na osnovu iskazane potrebe, proistekle iz značajnih zakonodavnih promena koje su donete u oblasti bezbednosti i zdravlja na radu. To predstavlja osnovu za dalju nadgradnju u smislu integralnog informatičkog rešenja za vođenje poslova bezbednosti i zdravlja na radu. / A new national Occupational and Safety Law brings many new obligations for employers and among them activities related to risk assessment procedures. A project of developing a software package for conducting a risk assessment procedure in the workplace and in the work environment was initiated, based on needs generated by significant legislation changes in the domain of occupational safety and health. All of previous should be a basis for further upgrading to the level of an integrated software solution in the domain of occupational safety and health.

  10. GenBank blastx search result: AK060887 [KOME

    Lifescience Database Archive (English)

    Full Text Available AK060887 001-035-B06 DQ087286.1 Saccharopolyspora pogona BusF (busF), BusG (busG), BusH (busH), BusI (bus...I), BusJ (busJ), BusK (busK), BusL (busL), BusM (busM), BusN (busN), BusO (busO), BusP (busP), BusQ (bus...Q), BusR (busR), and BusS (busS) genes, complete cds.|BCT BCT 8e-12 +1 ...

  11. GenBank blastx search result: AK104045 [KOME

    Lifescience Database Archive (English)

    Full Text Available AK104045 001-022-F06 DQ087286.1 Saccharopolyspora pogona BusF (busF), BusG (busG), BusH (busH), BusI (bus...I), BusJ (busJ), BusK (busK), BusL (busL), BusM (busM), BusN (busN), BusO (busO), BusP (busP), BusQ (bus...Q), BusR (busR), and BusS (busS) genes, complete cds.|BCT BCT 9e-25 +3 ...

  12. GenBank blastx search result: AK061746 [KOME

    Lifescience Database Archive (English)

    Full Text Available AK061746 001-038-F12 DQ087286.1 Saccharopolyspora pogona BusF (busF), BusG (busG), BusH (busH), BusI (bus...I), BusJ (busJ), BusK (busK), BusL (busL), BusM (busM), BusN (busN), BusO (busO), BusP (busP), BusQ (bus...Q), BusR (busR), and BusS (busS) genes, complete cds.|BCT BCT 5e-11 +3 ...

  13. Pravo na zasnivanje istospolnih zajednica i posvajanje djece u Hrvatskoj i u Europi

    OpenAIRE

    Ivković, Marina

    2015-01-01

    U ovom radu se analizira fenomen homoseksualnosti, pokušava odrediti njezin pojam i vrste te pronaći uzroke. Želi se ukazati na njezino povijesno postojanje u raznim društvima i na današnje agresivno širenje homoseksualnosti kao opravdanog stava. Naglasivši najprije osnovne istine o spolnosti i spolnom identitetu u početku se ispituje fenomenologija homoseksualnosti i pokušava joj se dati odrednica. Potom se utvrđuje njezina opstojnost kroz povijest u svim poznatim društvima i njezino naglo i...

  14. Primjenjivost kognitivno-bihevioralnog pristupa u tretmanu problema vezanih uz poremećaj rodnog identiteta

    OpenAIRE

    Antičević, Vesna

    2011-01-01

    Ovim prikazom klijentice nastoji se ohrabriti primjena bihevioralno-kognitivnih intervencija u tretmanu poteškoća vezanih uz Poremećaj rodnog identiteta (PRI). Primjena KB tehnika u radu s klijenticom pokazala se učinkovitom u smanjivanju psiholoških i interpersonalnih posljedica života sa PRI. Pozitivni ishodi tretmana upućuju na potrebu daljnjih istraživanja o mogućnostima integracije KB pristupa u ostvarenju općih ciljeva tretmana predloženih u Standardima skrbi za PRI i specifičnih cil...

  15. Muzej krapinskih neandertalaca kao izvor medicinskih refleksija

    OpenAIRE

    Salopek, Igor

    2010-01-01

    Novootvoreni Muzej krapinskih neandertalaca s dvosegmentarnim postavom: prikazom karakteristika života krapinskog pračovjeka te suvremenih znanja o evoluciji života na Zemlji izvor je znanstvene, stručne i edukativne spoznaje posjetiteljima, kao i reprezent najbogatijeg nalazišta fosilnih ostataka neandertalaca u svijetu. U ovom radu ukratko je prikazan stručnoznanstveni posjet Muzeju članova Hrvatskoga znanstvenog društva za povijest zdravstvene kulture, ispreplećući pritom opis funkcije i p...

  16. Gospodarenje komunalnim otpadom primjenom tehnologije higijenizacije

    OpenAIRE

    Miličić, Jakša

    2012-01-01

    U gospodarenju komunalnim otpadom, a u skladu sa Strategijom gospodarenja otpadom u RH, često se primjenjuje mehaničko-biološka obrada (MBO) otpada. Primjenom te tehnologije dobiva se relativno velika količina tzv. suhe frakcije koja se balira i upućuje u toplinsku obradu. Jedna mogućnost toplinske obrade "suhe frakcije" jest u proizvodnim procesima industrije cementa. U radu je napravljena detaljna analiza primjene tehnologije higijenizacije koja posebnim postupkom obrađuje komunalni otpad t...

  17. Prema dijalogu sociologije i kulturalnih studija

    OpenAIRE

    Bezinović, Igor

    2004-01-01

    Kulturalni studiji nastali su kao reakcija na britansku pozitivističku sociologiju. S vremenom je pojam kulturalnih studija postao široko upotrebljavan, tako da se cijeli pokret treba smatrati iznimno heterogenim. U radu se ističu nedostaci nepostojanja znanstvene metodološke strogosti u određenim radovima kulturalnih studija. Također se upozorava na opasnost prenaglašavanja mogućnosti svakodnevnog otpora, koja se najčešće javlja u radovima koji kulturalne studije vide kao antiinstituciona...

  18. CIVILNO-VOJNI ODNOSI U REPUBLICI HRVATSKOJ – STAJALIŠTA JAVNOSTI

    OpenAIRE

    SMERIĆ, Tomislav; Sabol, Gabrijela; MIŠETIĆ, Anka

    2010-01-01

    U radu se iznose i analiziraju rezultati anketnog istraživanja stajališta hrvatske javnosti (N = 3.420) o obilježjima civilno-vojnih odnosa u Republici Hrvatskoj, provedenog 2008. godine. Razmatranje ovog problemskog sklopa obuhvatilo je utvrđivanje mišljenja javnosti o (1) stabilnosti i karakteru civilno-vojnih odnosa u Republici Hrvatskoj, o (2) ulozi i djelovanju pojedinih aktera na području ostvarivanja civilnog nadzora oružanih snaga te o (3) odstupanjima od poželjnog modela civilno-vojn...

  19. Keramički inlay, onlay i overlay

    OpenAIRE

    Vrkaš, Roko

    2015-01-01

    U ovom radu su prikazane indikacije i kontraindikacije za keramiĉke indirektne ispune te preparacije kaviteta kao i njihova izrada i aplikacija u ustima. Opisane su današnje mogućnosti izrade, meĊu kojima su one laboratorijske i CAD-CAM izrada. TakoĊer je opisan naĉin adhezijskog cementiranja ovakvih radova te tipovi cemenata. Obzirom da je adhezijsko cementiranje relativno osjetljiv postupak, navedene su moguće pogreške kod cementiranja. Općenito, ispuni su u usnoj šupljini izloţeni agresivn...

  20. Vođena regeneracija kosti (GBR) uporabom titan membrane (vlastita iskustva)

    OpenAIRE

    Tahmiščija, H.; Radović, S.; Topić, Berislav; Tahmiščija, N.; Laux, T.; Arifhodžić, F.

    2003-01-01

    U implantologiji i parodontologiji se u svrhu kontrole regeneracije koštanoga tkiva rabe resorptivne i neresorptivne membrane.U ovome radu prikazana su iskustva dobivena uporabom neresorptivne titan neperforirane membrane. U slučajevima velikih koštanih defekata s namjerom ugradnje usadaka “Paraplant 2000” simultano smo upotrebljavali titan membrane kako bi se dobio koštani volumen odmah nakon ugradnje usadka u defekt. Fiksacija titan membrane provedena je s pomoću “Currasan” seta. Kod obr...

  1. Varijabilnost morfometrijskih svojstava žireva i visina sadnica hrasta lužnjaka (Quercus robur L.) iz sjemenskih sastojina u Hrvatskoj

    OpenAIRE

    Ivanković, Mladen; Popović, Maja; Bogdan, Saša

    2011-01-01

    Radi verifikacije važećih sjemenskih zona hrasta lužnjaka u Hrvatskoj na temelju znanstvenih spoznaja, započela su nova istraživanja genetske varijabilnosti u području prirodnog areala ove vrste. U jesen 2006. godine prikupljeno je sjeme iz tzv. priznatih sjemenskih sastojina, čija je osnovna uloga izvorište kvalitetnijeg sjemena za potrebe umjetne obnove gospodarskih sastojina. U radu se prikazuju rezultati morfometrijske analize sjemena i visina jednogodišnjih sadnica podrijetlom iz 17 uzor...

  2. Međusobno djelovanje flokulirajućeg soja kvasca Kloeckera apiculata i kvasca Saccharomyces cerevisiae

    OpenAIRE

    Sosa, Oscar A.; Manca de Nadra,María C.; Farías, Marta E.

    2008-01-01

    U radu je istraženo međusobno djelovanje flokulirajućeg soja kvasca Kloeckera apiculata u mješovitoj kulturi i neflokulirajućeg soja kvasca Saccharomyces cerevisiae. Oba su kvasca izolirana iz vina. Uzgojena je čista kultura stanica kvasca K. apiculata na podlozi od ekstrakta kvasca, peptona i glukoze, pa je nakon 24-satne inkubacije pri 28 °C utvrđeno da ih je flokulirano 75 %. U podlozi s malom koncentracijom glukoze ovaj se kvasac pojavljuje kao slabo flokulirajući fenotip (s 10 % flokulir...

  3. Primjena GIS-a u gospodarenju otpadnim vodama

    OpenAIRE

    Dadić, Tamara; Jurišić, Mladen; Tadić, Lidija

    2014-01-01

    U radu je ukratko opisana primjena GIS-a u gospodarenju otpadnim vodama. Navedene su glavne karakteristike GIS-a, kao i sustava odvodnje otpadnih voda te razlozi primjene GIS-a pri analizi, modeliranju i prikazu karakteristika sustava odvodnje. Detaljnije su opisana dva programa bazirana na GIS tehnologiji za analizu i monitoring sustava odvodnje otpadnih voda. Prikazan je i princip odabira lokacije uređaja za pročišćavanje otpadne vode, koji je krajnji element sustava odvodnje, pomoću GIS-a...

  4. Paradigma “novoga” terorizma informacijskoga doba

    OpenAIRE

    Perešin, Anita

    2007-01-01

    U radu se predstavljaju rezultati istraživanja promjena značajki terorizma u informacijskom dobu, koji se odnose na utjecaje mrežnih tehnologija, kao posljedice informacijske revolucije na paradigmu terorizma. Promatrajući terorizam u širem kontekstu kao sukob, Arquilla, Ronfeldt i Zanini uočili su dva osobito zanimljiva aspekta utjecaja informacijske revolucije na njegovu narav: prvo, informacijska revolucija pospješuje nastajanje i jačanje mrežnih oblika organizacije te istodobno omogućuje ...

  5. Magnetska rezonancija kao dio šireg pristupa dijagnostici epileptičnog napadaja u pasa - dva slučaja hidrocefalusa u pasa s višestrukim epileptičnim napadajima

    OpenAIRE

    Matijatko, Vesna; Kiš, Ivana; Vnuk, Dražen; Brkljačić, Mirna; Stanin, Damir

    2007-01-01

    U radu su prikazana dva slučaja hidrocefalusa u pasa. Psi su dovedeni na Kliniku za unutarnje bolesti Veterinarskog fakulteta Sveučilišta u Zagrebu nakon epileptičnih napadaja koji su se javljali u nizu, tj. kao status epilepticus. Oba su psa bila podvrgnuta općoj kliničkoj pretrazi te neurološkom pregledu prilikom kojih nisu otkrivena odstupanja od normale. Sve hematološke i biokemijske vrijednosti te nalazi analize mokraće nalazili su se unutar referentnih vrijednosti. U oba je psa proveden...

  6. Utjecaj stresa uzrokovanog hromošću, boli i upalom na zdravlje i rasplođivanje bikova holštajnsko-frizijske pasmine.

    OpenAIRE

    Prvanović Babić, Nikica; Radišić, Berislav; Lipar, Marija; Majić Balić, Ivanka; Samardžija, Marko; Torbar, Monika; Mačešić, Nino; Karadjole, Tugomir; Bačić, Goran; Cergolj, Marijan

    2014-01-01

    U radu je razmatran utjecaj stresa, upale i boli uzrokovanih hromošću na zdravlje i rasplođivanje bikova holštajnsko-frizijske pasmine. U prvu, pokusnu skupinu (n = 5) spadali su bikovi koji su imali patološke promjene na nogama dok su drugu skupinu sačinjavali zdravi bikovi (n = 6) na kojima smo samo proveli rutinsku kontrolu i korekciju papaka. Na početku istraživanja provedena je kirurška korekcija i liječenje papaka zajedno s rutinskom kontrolom. Potom su sve životinje u istraživanju dne...

  7. GRMLJAVINSKE OLUJE, UDARI GROMA I VATRA SV. NIKOLE U HRVATSKIM PRIMORSKIM KRAJEVIMA (14.-18. st.)

    OpenAIRE

    Kužić, K.

    2014-01-01

    U radu je prikazano 113 grmljavinskih oluja, udara groma i pojava vatre sv. Nikole zabilježenih uz obalu i na Jadranskom moru u razdoblju od 1395. do 1794. godine. Navedene fenomene zabilježili su brodski putnici, ljetopisci i vrlo malim dijelom službene osobe. Grom je posvuda smatran sredstvom viših sila, pa je tako i puk u hrvatskim primorskim krajevima uz njegovu pojavu povezivao likove iz kršćanstva (Biblije) ili zla bića, kao vragove i vještice. Znanstvenici su u početku svoje prosudbe d...

  8. Bitka Hrvata – bitka na Krbavskom polju 1493. godine

    OpenAIRE

    Kužić, Krešimir

    2014-01-01

    Autor u radu daje prikaz čimbenika koji su u interakciji doveli do najvećeg poraza hrvatske vojske u sukobima s Osmanskim Carstvom. Prikazan je jedan do sada neiskorišteni zapis o bitki, a zatim je napravljen osvrt na vojni ustroj Osmanlija čiji je izdanak bio Jakub-paša Hadum. Na hrvatskoj strani nije bilo ni jedinstva, ni naoružanja, ni uvježbane vojske, a ni osigurane opskrbe. Kad se tome pridoda naivna taktika bana Derencsényija, uz takve okolnosti poraz Hrvata bio je jedini mogući ishod....

  9. Otok Jabuka u bilješkama putnika na Jadranu od 14. do 17. stoljeća – ime i izgled

    OpenAIRE

    Kužić, Krešimir

    2015-01-01

    Jabuka je po svojoj površini jedan od najmanjih jadranskih otoka. Prvi put je zabilježena na pomorskim kartama početkom 14. stoljeća, a zbog svoje prepoznatljivosti unosili su je gotovo svi kartografi i pisci portulana. Njezino prvotno mletačko ime bilo je Mellisella, a nakon toga Pomo. Kao doprinos ovim podacima, u radu su navedena trideset četiri opisa Jabuke koja su dali putnici tijekom plovidbe Jadranom od kraja 14. do kraja 17. stoljeća. Od atributa koje je otok dobivao najčešće se pisal...

  10. Plemići s područja župe Zmina u srednjem vijeku

    OpenAIRE

    Kužić, Krešimir

    2000-01-01

    Autor je u svom radu dao prikaz plemića župe Zmina i njihovog života u srednjem vijeku. Pritom se služio objavljenim izvorima i literaturom, a manje podacima iz arhiva. Život tamošnjih plemića nije se razlikovao u temeljnim crtama od života u drugim hrvatskim krajevima toga doba. Početni rodovski oblik ustroja ustupio je mjesto velikaškom, feudalnom ustroju nametnutom od Anžuvinaca, a onda je takvo stanje potrajalo do pada Bosne pod Turke. Gospodarski uspon naročito se intenzivirao nakon prot...

  11. PRESUDE NA ŽUPANIJSKOM SUDU U ZAGREBU ZA KAZNENO DJELO UBOJSTVA I TEŠKOG UBOJSTVA OD 1998. DO 2002. GODINE

    OpenAIRE

    Mittermayer, Oliver

    2007-01-01

    U radu je izložena analiza sudske prakse na uzorku pravomoćnih i dostupnih sudskih odluka za kazneno djelo ubojstva (kao i teškog ubojstva i kvalifi ciranog ubojstva te pokušaja tih kaznenih djela) na Županijskom sudu u Zagrebu. Uzorak je sastavljen od spisa u 82 kaznena predmeta u kojima je došlo do optuženja za kaznena djela ubojstva i teškog ubojstva te za pokušaje tih kaznenih djela u razdoblju od 1998. do 2002. godine. Nastavno na prijašnja istraživanja, sudske su odluke anali...

  12. Proces organizacijske komunikacije

    OpenAIRE

    Spaho, Kenan

    2012-01-01

    Menadžeri provode većinu svoga vremena u komunikaciji na više načina: sastanci, diskusije licem u lice, pisma, elektronske poruke itd. Također, sve više uposlenika shvaća da je komunikacija vrlo važan dio u poslu jer je većina poslovnih aktivnosti zasnovana na timskom radu uposlenika organiziranih u različite funkcionalne grupe. To je razlog zašto je komunikacija postala važna u kompaniji. Iskustvo je pokazalo da postoje značajne razlike u načinu komunikacije i da komunikacija...

  13. Nomenklatura nakladničkih aktivnosti u sklopu kreativne i kulturne industrije

    OpenAIRE

    Tomašević, Nives

    2014-01-01

    U radu se analizira temeljna nomenklatura nakladničkih aktivnosti u Republici Hrvatskoj i u Europskoj Uniji, te se bavi izazovima budućih komparativnih studija koje se bave strukturom klasifikacije. Kreativne i kulturne industrije pokušavaju iznaći optimalnu klasifikaciju kojom bi se kreativne/kulturne aktivnosti definirale, pratile i usmjeravale. Klasifikacijski okviri u nekim su državama EU suglasni oko navedenih razvrstavanja, a u drugima se tek traže nomenklaturna rješenja. O nomenklaturn...

  14. Marcuseovo shvaćanje kulture

    OpenAIRE

    Sadžakov, Slobodan

    2008-01-01

    Autor u svom radu razmatra aspekte Marcuseova shvaćanja kulture prije svega, njegove analize odnosa kulture i civilizacije. Taj je odnos, po Marcuseu, presudan za razumijevanje pozicije kulture u okviru moderne društvenosti. Marcuse pokazuje, prateći dijalektiku kulture i civilizacije, kako određeni imperativi imanentni sferi kulture bivaju amortizirani od strane »mehanizama civilizacije«, stječući status uzvišenih, ali i neobvezujućih ciljeva u odnosu na generalni kontekst reprodukcije građa...

  15. JESMO LI „PRERASLI“ TEORIJU X I TEORIJU Y?

    OpenAIRE

    Dropulić, Marinela

    2010-01-01

    Najvrjedniji resursi koje poduzeće može imati su ljudski resursi, zbog toga bi svi aspekti vezani za njih trebali biti na vrhuncu važnosti. U ovom se radu analiziraju aspekti motivacije i stilova vođenja prema McGregorovoj Teoriji X i Teoriji Y. Za analizu samoga nastanka, stvaranja i shvaćanja Teorija X/Y sistematizirana je literatura i spoznaje, a metodom anketiranja (n=40) istražene su preferencije zaposlenika i stila vođenja zastupljenoga u znanstvenoj praksi na primjeru Instituta za polj...

  16. Cistein proteaza (kaparin) iz kapara (Capparis spinosa)

    OpenAIRE

    Demir, Yasar; Güngör, Azize Alayli; Duran, Elif Duygu; Demir, Nazan

    2008-01-01

    Proteaze su enzimi koji imaju vrlo važnu funkciju u organizmu i razne mogućnosti primjene in vitro. Posljednjih se godina sve više primjenjuju u medicini, farmaciji (u liječenju probavnih tegoba, raznih upala i dr.) i industriji (u proizvodnji sira, mekšanju mesa i štavljenju kože). U ovom je radu opisan postupak pročišćavanja i karakterizacije proteaze iz kapara (Caparis spinosa). Kapare se od davnine koriste kao hrana i u medicinske svrhe, a obilato rastu u nekim dijelovima Turske. Pročišća...

  17. Recentni trendovi oborine i budući scenariji nad Sredozemnim morem

    OpenAIRE

    2014-01-01

    U ovome radu analiziraju se aktualni intenziteti oborine (PR) i trendovi oborine nad područjem Sredozemnog mora i njihovi odzivi na scenarije općih klimatskih promjena. U analizi se koristi niz podataka intenziteta oborine u mreži od 0,25° tijekom 13-godišnjeg razdoblja (1998–2010) uzet iz podataka dobivenih daljinskim mjerenjima tijekom Misije mjerenja tropske oborine (Tropical Rainfall Measuring Mission, TRMM). Budući sce- nariji koriste rezultate iz šest općih klimatskih modela (globalni k...

  18. Rizični čimbenici koji nastaju konzumacijom sirove ribe i školjkaša

    OpenAIRE

    Bergman, dr. med.vet., Tajana; Cvrtila Fleck, dr. sc. Željka; Njari, dr. sc. Bela; Kozačinski, dr. sc. Lidija

    2015-01-01

    U radu su prikazani biološki i kemijski rizici koji ugrožavaju zdravlje ljudi nakon konzumacije riba, rakova, školjkaša i njihovih proizvoda, sirovih, mariniranih ili nedovoljno toplinski obrađenih. Virusi, bakterije i njihovi toksini kao rizični čimbenici koji predstavljaju faktor onečišćenja proizvoda ribe i školjkaša imaju negativan utjecaj u prehrambenom lancu ljudi i predstavljaju zoonotski potencijal te uzrokuju bolesti koje se prenose konzumiranjem morskih proizvoda. Kao važnije uzročn...

  19. Krađa u rimskom pravu: delictum publicum i delictum privatum

    OpenAIRE

    2007-01-01

    Polazeći od pravno-povijesnog shvaćanja Ulpijanove distinkcije ius publicum - ius privatum, u radu se prikazuje dinamika dualizma pravne prirode odnosno sankcioniranja krađe u rimskom pravu. Nakon objašnjenja decemvirskog razlikovanja između javnog kaznenog djela furtum manifestum i privatnog delikta furtum nec manifestum te pretorske privatnopravne regulacije krađe, autorica izlaže zakonodavne i pravničke intervencije iz razdoblja kasne republike te genezu esktraordinarnog sudbenog postupka ...

  20. Selektivna i osjetljiva metoda određivanja metoprolola u humanoj plazmi tekućinskom kromatografijom spregnutom s masenom spektrometrijom

    OpenAIRE

    2010-01-01

    U radu je opisano određivanje metoprolola u humanoj plazmi tekućinskom kromatografijom visoke učinkovitosti spregnutom s masenom spektrometrijom. Analit i interni standard, nevirapin, ekstrahirani su iz plazme etil-acetatom. Kromatografsko odjeljivanje provedeno je na C-18 koloni uz mobilnu fazu sljedećeg sastava: 10 mmol L–1 amonijev acetat (pH 5,0)/acetonitril 15:85 (V/V). Ionizacija uzoraka provedena je pri atmosferskom tlaku. Povećanje selektivnosti postignuto je spregnutom masenom spektr...

  1. Digital image sequence processing, compression, and analysis

    CERN Document Server

    Reed, Todd R

    2004-01-01

    IntroductionTodd R. ReedCONTENT-BASED IMAGE SEQUENCE REPRESENTATIONPedro M. Q. Aguiar, Radu S. Jasinschi, José M. F. Moura, andCharnchai PluempitiwiriyawejTHE COMPUTATION OF MOTIONChristoph Stiller, Sören Kammel, Jan Horn, and Thao DangMOTION ANALYSIS AND DISPLACEMENT ESTIMATION IN THE FREQUENCY DOMAINLuca Lucchese and Guido Maria CortelazzoQUALITY OF SERVICE ASSESSMENT IN NEW GENERATION WIRELESS VIDEO COMMUNICATIONSGaetano GiuntaERROR CONCEALMENT IN DIGITAL VIDEOFrancesco G.B. De NataleIMAGE SEQUENCE RESTORATION: A WIDER PERSPECTIVEAnil KokaramVIDEO SUMMARIZATIONCuneyt M. Taskiran and Edward

  2. Kompleks felodipina s β-ciklodekstrinom kao aktivnom ovojnicom za vremenski odgođenu terapiju hipertenzije

    OpenAIRE

    PAGAR, KUNAL P.; Vavia, Pradeep R.

    2012-01-01

    U radu je opisan razvoj kronoterapijskog pripravka felodipina (FD) za brzo oslobađanje ljekovite tvari nakon određenog vremenskog razdoblja u liječenju hipertenzije. U tom pripravku FD kompleks sa ciklodekstrinom (ljekovita tvar) obavijen je slojem koji bubri i obložen etilcelulozom (netopljivi vodopropusni polimer). Oslobađanje iz FD kompleksa tri puta je povećano u odnosu na oslobađanje čistog FD. Povećanje količine i brzine oslobađanja posljedica je amorfizacije felodipina, što se pokazalo...

  3. SIGURNOST CMS-A

    OpenAIRE

    Kaluža, Marin; Vukelić, Bernard; Rojko, Tamara

    2016-01-01

    Za razvoj web-sjedišta danas se često koriste CMS-ovi. Web-sjedišta meta su raznim malicioznim napadačima, stoga je potrebno poznavati razinu sigurnosti web-sjedišta i postaviti maksimalnu moguću razinu sigurnosti. U radu su prikazane osnovne značajke poznatijih CMS-ova u otvorenom pristupu Wordpress, Joomla i Drupal. Objašnjeno je deset najčešćih web-ranjivosti. Izvršeno je testiranje web-ranjivosti pomoću različitih programskih alata. Testirane su osnovne instalacije CMS-ova. Nakon ...

  4. Trofejni parametri muflona (Ovis ammon musimon Pallas, 1811) u državnom lovištu VIII/6 “Kalifront”

    OpenAIRE

    Krapinec, Krešimir; Grubešić, Marijan; Šegrt, Viktor; Maričić, Kristijan

    2006-01-01

    U radu je načinjena analiza ovisnosti elemenata izmjere muflonskog trofeja, analiza prirasta duljine i opsega tuljca te usporedba s nekim srednjeeuropskim populacijama i korzičkom populacijom. Glede elemenata ocjene rogova muflona s lovišta “Kalifront” najveću ovisnost o starosti pokazuju duljina tuljaca (r = 0,83), opseg na trećoj trećini roga (r = 0,83) i ukupna vrijednost trofeja (r = 0,82). Na ukupnu trofejnu vrijednosti najviše utječe duljina tuljaca (r = 0,98), nakon toga slijedi opseg ...

  5. Update on the use of pramipexole in the treatment of Parkinson’s disease

    Directory of Open Access Journals (Sweden)

    Radu Constantinescu

    2008-04-01

    Full Text Available Radu ConstantinescuDepartment of Neurology, Sahlgrenska University Hospital, 413 45 Göteborg, SwedenAbstract: Pramipexole is a non-ergot dopamine agonist shown to be efficacious in the treatment of Parkinson’s disease (PD. This review addresses the literature concerning pramipexole’s efficacy in treating motor and non-motor symptoms in PD, its impact on the development of dyskinesias and response fluctuations, the issue of neuroprotection, and the risk for developing adverse events such as increased somnolence, attacks of sudden onset of sleep, cardiac valvulopathy and impulse control disturbances.Keywords: pramipexole, Parkinson’s disease, efficacy, adverse events

  6. Metode izbora oblika zuba za mobilne proteze

    OpenAIRE

    2001-01-01

    U radu su opisane različite metode koje pomažu izboru umjetnih zuba za potpune proteze. Prva je poznata teorija još iz prošloga stoljeća, a temelji se na Hipokratovoj podjeli temperamenta na neurotične, sangvinične, bilijarne i astenične tipove, pri čemu svakom temperamentu odgovara određen oblik zuba. Tu je teoriju istisnula geometrijska teorija Leona Williamsa (početak prošloga stoljeća) koja povezuje oblik lica i oblik zuba. Prema Williamsu, konturna linija gornjih središnjih sjekutića uma...

  7. Kulturni imperijalizam Zapada u djelu Edwarda W. Saida

    OpenAIRE

    Jeknić, Ranka

    2006-01-01

    U radu se prikazuju osnovne ideje i stajališta Edwarda W. Saida o odnosu kulture i imperijalizma te povezanosti zapadne kulture s oblikovanjem imperijalizma. U tom se smislu posebna pozornost posvećuje njegovu tumačenju romana kao konstrukcije geopolitičke stvarnosti i njegovu istraživanju osobina »imperijalizma« kakve je pronašao u djelima engleskih i francuskih književnika poput Jane Austen, Rudyarda Kiplinga, Josepha Conrada i Alberta Camusa, ilustrirajući način na koji je roman kao umjetn...

  8. Sistemske i kulturne razlike

    OpenAIRE

    Jeknić, Ranka

    2007-01-01

    U radu se pojedinačno analiziraju neoliberalizam, socijaldemokracija, radikalizam i politički islamizam kao četiri izdiferencirana socio-politička i ekonomska stajališta prema individualizmu i kolektivizmu kao dimenzijama kulture u suvremenom socio-političkom i ekonomskom kontekstu globalizacije. Ukazuje se na načelne razlike prema individualizmu i kolektivizmu između ta četiri stajališta, a potom se izvode zaključci i ukazuje na neka njihova problematična pitanja u vezi s kulturnim i sistems...

  9. Kulture i organizacije: Organizacijske kulture Geerta Hofstedea

    OpenAIRE

    Jeknić, Ranka

    2011-01-01

    U radu se prvo prikazuju neki razultati međukulturalnih IBM-ovih istraživanja, odnosno modela „nacionalne kulture“ Geerta Hofstedea i dimenzija vrijednosti, te međuorganizacijskog IRIC istraživanja o organizacijskim kulturama i dimenzijama organizacijskih praksi. Potom se analizira utjecaj „nacionalne“ na organizacijsku kulturu, te izvode zaključci o primjeni Hofstedeovih istraživačkih nalaza u kontekstu upravljanja kulturnom raznolikošću među organizacijama i organizacijskim kulturama, te ku...

  10. Percepcija korupcije i borba protiv korupcije u Republici Hrvatskoj

    OpenAIRE

    Zoran Malenica; Ranka Jeknić

    2010-01-01

    Polazeći od institucionalnih i financijskih pretpostavki borbe protiv korupcije, i prikaza dosadašnjih rezultata u borbi protiv korupcije, uključujući i statističke podatke o sudskim postupcima i presudama vezanim za to područje u zadnjih sedam godina, u radu se analiziraju neki rezultati relevantnih istraživanja percepcije korupcije u Hrvatskoj, s posebnim osvrtom na podatke u vezi s percepcijom korupcije i razinom (ne)povjerenja u institucije iz istraživanja provedenog u sklopu projekta „So...

  11. Kiša zmija

    OpenAIRE

    Kurelić, Zoran

    2012-01-01

    U ovom radu autor prikazuje i interpretira dvije različite kinoverzije Coppolina klasičnog filma Apokalipsa danas. Verzije se razlikuju po tome što jedna od njih završava scenom bombardiranja koja je u kasnijim izdanjima filma potpuno nestala. Upravo u nestaloj sceni autor pronalazi najzanimljiviji smisao filma te pokazuje zašto je izostavljena scena fundamentalna. Koristeći se Arendtinom interpretacijom Conradova romana Srce tame, koji je scenaristički iskorišten u Apokalip...

  12. Utjecaj trajanja zrenja na količinu pojedinih biogenih amina u sredini i pod korom kravljeg Livanjskog sira

    OpenAIRE

    Marijan, Antonela; Džaja, Petar; Bogdanović, Tanja; Škoko, Ines; Cvetnić, Željko; Dobranić, Vesna; Zdolec, Nevijo; Šatrović, Edin; Severin, Krešimir

    2014-01-01

    Određivanje razine biogenih amina u siru, osim što ima značaj za utvrđivanje higijenske ispravnosti sira, može se upotrijebiti kao parametar za procjenu uvjeta proizvodnje i/ili zrenja proizvoda, te posebno u odabiru mljekarskih kultura. U radu se željelo utvrditi utjecaj samog procesa zrenja na količinu biogenih amina u siru. U tu svrhu su obavljene fizikalno-kemijske i mikrobiološke analize, te određivanje sadržaja biogenih amina. Tijekom procesa zrenja Livanjskog sira iz tri različite šarž...

  13. PROMOCIJA U FUNKCIJI RAZVOJA VINARSKOG SEKTORA U ISTRI

    OpenAIRE

    Brščić, Kristina; Oplanić, Milan; Miladinović, Nevena

    2011-01-01

    U radu je dan prikaz mogućnosti i ograničenja s aspekta promocije kao jednog od elementa marketing miksa u vinogradarsko-vinarskoj proizvodnji u Istri. Osim pregleda postojećeg stanja vinogradarstva i vinarstava u Istri dan je i kratki osvrt na povijesni razvoj vinogradarstva i vinarstva te na pojedine proizvode koji su kreirani upravo radi isticanja važnosti i skretanja pozornosti na vinare u Istri, kao što su primjerice, vinske ceste i udruga Vinistra. Istraživanje je provedeno intervjuiran...

  14. Analiza niskofrekventnog spektra vibracija na elementima strukture helikoptera 'Gazela' / Analysis of low frequency vibrations on the structural connection elements of the Gazelle helicopter

    OpenAIRE

    Jovanović, Miroslav M.

    2010-01-01

    U radu je prikazan postupak i metodologija ispitivanja vibracija na helikopteru 'gazela' radi definisanja efikasnosti prigušenja vibracija na vezi struktura - sedište pilota. Posebna pažnja posvećena je teorijskim osnovama vibracija na helikopteru, određivanju radnih frekvencija, definisanju režima rada i profila leta helikoptera u toku ispitivanja. Na kraju rada prikazani su rezultati merenja vibracija u frekventnom domenu. / In this paper the procedure and methodology of vibration testing o...

  15. Opšte vibracije na sedištu pilota kod dva tipa helikoptera

    OpenAIRE

    Živković Dejan; Basarić Gradimir; Jovelić Stojan

    2002-01-01

    U ovom radu opisano je merenje opštih vibracija na sedištu pilota kod dva tipa helikoptera (po jedna letelica) sa turbomlaznim motorima, kao i trećinsko-oktavna analiza ubrzanja opštih vibracija u sve tri ose. Iz dobijenih rezultata sledi da su nivoi ubrzanja kod prvog tipa helikoptera najveći u trećinsko-oktavnom opsegu sa centralnom frekvencijom od 16 Hz. Maksimalne vrednosti ubrzanja opštih vertikalnih vibracija izmerene su za režime lebdenja (0,977 m/s2) i horizontalnog leta pri brzini od...

  16. Tri vrste socijalnih organizacija na otočju jugoistočne Azije

    OpenAIRE

    1991-01-01

    U članku se raspravljaju Morganove, više od stotinu godina stare, teze o terminologiji srodstva. Morgan svoje zaključke nije izvodio ne temelju historijskih i genetičkih dodira među narodima već na temelju karaktera socijalne organizacije. Njegove teze do sada nisu bile raspravljane ni osporavane ali ih autor u ovome radu ocjenjuje kao etnološke greške. Raspravljaju se i neke postavke E. Leacha. Donose i nove spoznaje autora o tipovima socijalne organizacije na otočju jugoistočne Azije....

  17. Proizvodnja celuloze s pomoću mikroorganizama i njezina primjena

    OpenAIRE

    Chawla, Prashant R.; Bajaj, Ishwar B.; Survase, Shrikant A.; Singhal, Rekha S.

    2009-01-01

    Neke bakterije proizvode egzopolisaharid celulozu, jedinstvenoga sastava i mehaničkih svojstava, koja ima kudikamo veću čistoću od biljne celuloze. U ovom je radu prikazan kritički osvrt na dostupne informacije o bakterijskoj celulozi, s osobitim naglaskom na njezinu proizvodnju fermentacijom i primjenu. Navedene su informacije o putu biosinteze, te enzimima i prekurzorima koji sudjeluju u proizvodnji bakterijske celuloze, a također se raspravlja o njezinoj strukturi i fizikalno-kemijskim svo...

  18. Stakleno - ionomerni cementi

    OpenAIRE

    Prskalo, Katica; Pandurić, Jasna; Šutalo, Jozo; Vukovojac, Stanko; Meniga, Andrej

    1990-01-01

    Stakleno ionomerni cementi su noviji tip dentalnih materijala koji sve više nalaze kliničku primjenu zahvaljujući dobroj adheziji na zubno tkivo karijes protektivnom učinku, biokompatibilnosti i jednostavnom rukovanju. To su dvokomponentni materijali koji u promet dolaze u obliku praška i tekućine. Mješanjem ovih komponeti ručno ili automatski u vibratoru, nastaje jedinstvena masa. Pored kemijskih postoje i svjetlosnopolimerizirajući hibridni stakleno ionomerni cementi. U radu je prikazan ...

  19. KORIŠTENJE I KREIRANJE KREDITNOG POTENCIJALA HRVATSKIH BANAKA S ANALIZOM ENDOGENIH I EGZOGENIH VARIJABLI

    OpenAIRE

    Samodol, Ante

    2013-01-01

    U ovom radu se modelima višestruke linearne regresije analizira korištenje i kreiranje kreditnog potencijala hrvatskih banaka u razdo- blju 2004-2012. Zavisne (endogene) varijable su novčana masa (M1) i obračunata obvezna pričuva banaka dok su nezavisne (egzogene) varijable bilančne pozicije aktive i pasive konsolidirane bilance hrvatskih banaka. Cilj je ovoga istraživanja utvrditi postojanje povezanosti između zavisnih i nezavisnih varijabli te smjer i jakost takve povezanosti, što bi doprin...

  20. Sjeta za čednim djetinjstvom: implikacije odrasloga pogleda na spolnost u djetinjstvu i adolescenciji

    OpenAIRE

    Lareau, Kristina

    2012-01-01

    U radu se istražuje odrasli pogled na dječju književnost kroz vizuru članka „From Kiddie Lit to Kiddie Porn“ Erica Tribunelle (2008), koji propituje implikacije dječje spolnosti analizirajući djela Chrisa Kenta tj. njegovih parodija romana The Coral Island [Koraljni otok] R. M. Ballantynea i Tom Brown’s Schooldays [Školovanje Toma Browna] Thomasa Hughesa. Preuzima se Kincaidov nazivak ‘djecoljublje’ (child-loving) i razmatraju implikacije različitih vrsta ‘djecoljublja’ na tragu istraživanja ...

  1. Forenzika elektronske pošte

    OpenAIRE

    Milorad S. Markagić

    2013-01-01

    U najopštijem smislu digitalna forenzika može se definisati kao skup metoda za prikupljanje, analizu i prezentaciju digitalnih dokaza koji se mogu pronaći na računarima, serverima, u računarskim mrežama, bazama podataka, mobilnim uređajima i svim drugim elektronskim uređajima na kojima se čuvaju podaci. U ovom radu su opisane metode prikupljanja digitalnih dokaza u elektronskoj pošti i njihova analiza. Uvod Elektronska pošta se kao dokazni materijal pojavljuje u velikom broju kako građanskih ...

  2. Odnos menadžmenta i motivacije u organizaciji Dukat d.d

    OpenAIRE

    Jalušić, Tea

    2016-01-01

    Menadžment je svuda oko nas i ima važnu ulogu u životu svakog pojedinca. Za menadžment poduzeća je od izuzetne važnosti da poznaje profil motivacije svojih zaposlenih. Stoga se u radu polazi od samog definiranja pojma motivacije i uloge suvremenog menadžmenta u motiviranju zaposlenih. Prikazane su teorije motivacije: Maslowljeva teorija motivacije, Herzbergova dvofaktorska teorija motivacije, MacGregorova teorija X i teorija Y, McClellandova motivacijska teorija, te teorija ...

  3. Najčešće sintaktičke pogreške u publicističkome stilu (na primjeru "Glasa Istre")

    OpenAIRE

    2013-01-01

    U radu se opisuju najčešće sintaktičke pogreške u Glasu Istre, najčitanijim dnevnim novinama u Istri. Analiza obuhvaća dvadesetak brojeva s posebnim naglaskom na položaj enklitike, sročnost s brojevima, veznike budući da, ni i niti, s obzirom na (to da), ukoliko i ako, prijedloge nasuprot, unatoč, usprkos, kroz, po, putem, s(a), zbog i radi, posvojni genitiv, posvojni pridjev i dekompoziciju predikata. Uvažavajući pravila i posebnosti publicističkoga stila, komparativnom se analizom propisâ i...

  4. Jezična analiza lista Naš glas

    OpenAIRE

    2015-01-01

    U radu se analizira jezik Našega glasa (list „Riviere“ – radne organizacije za ugostiteljstvo, turizam, trgovinu i proizvodnju) koji je izlazio u Poreču od 1969. do 1982. godine. Nakon kratkoga osvrta na strukturu, sadržaj i ulogu toga lista te njegov značaj za stanovništvo lokalne zajednice, slijedi prikaz jezičnih zbivanja u vrijeme njegova izlaženja. U žarištu su istraživanja pravopisne, morfološke, sintaktičke, tvorbene, leksičke i stilske karakteristike lista. Rezultati istraživanja poka...

  5. Model angažovanja jedinica ABH službe prilikom hemijskog udesa

    Directory of Open Access Journals (Sweden)

    Dejan R. Inđić

    2014-02-01

    Full Text Available Hemijski udesi kao neminovnost savremenog tehnološkog razvoja društva prouzrokuju brojne posledice na ljude, materijalna dobra i životnu sredinu. Jedinice atomsko-biološko-hemijske (ABH službe, kao specijalizovane jedinice Vojske Srbije, izvršavaju određene zadatke u okviru otklanjanja posledica hemijskih udesa. U radu je prikazano modeliranje efekata hemijskog udesa i jedan od načina za izbor jedinice ABH službe za angažovanje na otklanjanju posledica hemijskog udesa, korišćenjem metode analitičkih hijerarhijskih procesa.

  6. VIŠESTRUKI IDENTITET ČEHA U JAZVENIKU

    OpenAIRE

    2005-01-01

    U radu se razmatra identitet Čeha iz Jazvenika kraj Siska. Prikazuju se migracijska kretanja, promjena nacionalnog identiteta pojedinca (na primjeru političkih, gospodarskih i spolnih razlika, ženidbenih veza), sadašnje stanje na terenu (dvojna imena, kroatizirana prezimena), te upućuje na sačuvanost pojedinih segmenata kulturnog identiteta nacionalne manjine (dijelovi godišnjih i životnih običaja, jezik). Identitet je promjenljiva kategorija, ne može se definirati zauvijek, on živi i mijenja...

  7. Kornati na starim geografskim i pomorskim kartama

    OpenAIRE

    Faričić, Josip; Simičić, Zdenko

    2005-01-01

    U radu se na temelju analize kartografskih izvora analizira historijsko-geografski razvitak Kornatskih otoka, koji čine najbrojniju skupinu među hrvatskim otocima. Stare se karte koriste ponajprije kao sredstvo geografskih istraživanja, koje u nužnoj korelaciji s istovremenim povijesnim pisanim izvorima te modernim topografskim i pomorskim kartama čine osnovu za oblikovanje istraživačke platforme na kojoj se mogu graditi relevantni znanstveni rezultati. Na temelju starih karata moguće je, uz ...

  8. VISOKO GOSPODARSKO UČILIŠTE U KRIŽEVCIMA PRILOG OBRAZOVANJU ZA ODRŽIVU I EKOLOŠKU POLJOPRIVREDU

    OpenAIRE

    2009-01-01

    Rad daje pregled uloge koju ima Visoko gospodarsko učilište u Križevcima u području stručnih studija za poljoprivredu u Hrvatskoj i doprinos visokoškolskom obrazovanju za održivu i ekološku poljoprivredu. U radu se također donosi kratki opis povijesnoga razvoja križevačkoga Učilišta i opis suvremenih studijskih programa na razini stručnog i specijalističkog diplomskog studija te specijalističkih seminara u sklopu cjeloživotnoga učenja.

  9. Stalni nadzor srčanog izbačaja metodama Picco i Lidco prema Pak-u u septičnih bolesnika: kalibrirati ili ne ?

    OpenAIRE

    2011-01-01

    U ovom radu uspoređivala se točnost mjerenja srčanog izbačaja pomoću dviju najčešće upotrebljavanih metoda manje invazivnog hemodinamskog nadzora i standardnom tehnikom termodilucije plućnim kateterom. Mjerenje je provedeno kod septičnih kirurških bolesnika u razdoblju neposredno nakon i između kalibracija sustava. Rezultati su pokazali zadovoljavajuću podudarnost mjerenja u obje faze primjenom obiju metoda i pomoću plućnog katetera, pa se kalibriranje sustava preporuča u hemodinamski nestabi...

  10. Doseljavanje Morlaka u opustjela sela šibenske Zagore u 16. stoljeću

    OpenAIRE

    Juran, Kristijan

    2014-01-01

    U radu se donose nove vijesti o doseljavanju Morlaka, osmanskih podanika, na područje šibenske Zagore potkraj dvadesetih i početkom tridesetih godina 16. stoljeća. Utvrđuje se porijeklo i prostorni razmještaj pojedinih morlačkih skupina (katuna), a posebna se pozornost posvećuje zakupničkim ugovorima koje su njihovi glavari sklopili s vlasnicima sela i pašnjaka – šibenskim zemljoposjednicima. Predlažu se i nova rješenja za ubikaciju nekih naselja koja su navedena u osmanskome poreznom popisu ...

  11. POBOLJŠAVANJA U SUSTAVU UPRAVLJANJA KVALITETOM METODOLOGIJOM "LEAN SIX SIGMA"

    OpenAIRE

    Kondić, Živko; Maglić, Leon

    2008-01-01

    Sustavi upravljanja kvalitetom postoje u većini organizacija koje su danas prisutne na tržištu. Jedan je od važnih ciljeva u tim organizacijama postići zadovoljstvo kupca. Kako bi se približile tom cilju organizacije nastoje kontinuirano poboljšavati svoje sustave upravljanja kvalitetom. Tijekom godina razvile su se mnoge tehnike poboljšavanja, a jedna od najsuvremenijih je i "Lean Six Sigma". U radu se prikazuje razvoj najvažnijih tehnika poboljšanja. Također su prikazane i osnovne karakteri...

  12. Komparacija sekundarnih etalona mikrotalasne snage / Comparison of microwave power secondary standards

    Directory of Open Access Journals (Sweden)

    Sanja Suruliz

    2003-07-01

    Full Text Available U ovom radu opisana je komparacija grupe sekundarnih etalona mikrotalasne snage kao način za održavanje metrološke sledljivosti u nedostatku primarnog etalona mikrotalasne snage. Obavljene su dve komparacije i to sa termopretvaračkim glavama, 2000. godine, a 2002. godine prošireno i na termistorske glave u opsegu frekvencija 18 do 26,5 GHz. / In absence of primary standards for microwave power, a group of microwave power secondary standards was compared as a method of sustaining metrological traceability. The comparison included thermoelectric and thermistor mounts in the frequency range from 18 to 26,5 GHz.

  13. Povijest publikacije "Znakovi i kratice na pomorskim kartama" u izdanju Hidrografskog instituta

    OpenAIRE

    Duplančić Leder, Tea; Leder, Nenad

    2010-01-01

    Povijest pomorske kartografije može se vrlo dobro pratiti na osnovi novih izdanja publikacije „Znakovi i kratice na pomorskim kartama“. U radu su prikazana sva izdanja te publikacije za područje istočne obale Jadranskog mora, od prvog izdanja iz 1929. godine na jednom listu, pa sve do današnjega, 5. izdanja. Svako novo izdanje sadrži sve više znakova i kratica, a njegov je sadržaj usklađen sa svjetskim trendovima u pomorskoj kartografiji. Tako su pomorske karte, kao nijedna druga vrsta temats...

  14. Pretprotetička rehabilitacija donje čeljusti nakon kompleksne dentoalveolarne traume s multiplom avulzijom zubi - prikaz bolesnika

    OpenAIRE

    2005-01-01

    Traumatski gubitak zubi s defektom kosti u donjoj čeljusti težak je problem u protetskoj reha-bilitaciji. U ovome radu prikazuje se mogući način rehabilitacije nakon složene dentoalveolarne traume s gubitkom svih četiriju sjekutića, očnjaka, obaju pretkutnjaka i prvoga kutnjaka u desnoj strani donje čeljusti te gubitka alveolarne kosti, uz poremećene anatomsko morfološke odnose u tome području. Da bi se zadovoljila stabilnost, funkcija i estetika pro-tetskoga nadomjestka te prevenirala atrofi...

  15. Infekcije vrstom Legionella pneumophila u Primorsko-goranskoj županiji

    OpenAIRE

    Tićac, Brigita; Žižić, Igor; Kesovija, Palmira; Farkaš, Maja; Pahor, Đana; Rukavina, Tomislav

    2009-01-01

    Cilj: Bakterije roda Legionella značajni su uzročnici nozokomijalnih pneumonija, kao i pneumonija koje se javljaju u zajednici. U većini slučajeva klinički nije moguće razlikovati pneumonije uzrokovane legionelama od onih nastalih ostalim atipičnim uzročnicima. Etiološka dijagnoza zasniva se prije svega na kultivaciji, detekciji antigena, serodijagnostici i molekularnim testovima. Metode: U radu smo retrospektivno analizirali rezultate pretraga izvršenih na Mikrobiološkom odjelu Nastavn...

  16. Preslikavanje parametara kvaliteta usluga na protokole ATM mreža

    OpenAIRE

    Milojko Jevtović

    2005-01-01

    Preslikavanje parametara kvaliteta usluga (Quality of Service - QoS) jedan je od bitnih elemenata u koncepciji ATM (Asynchronous Transfer Mode) širokopojasnih mreža. U radu su opisani parametri QoS-a (verovatnoće pogrešnih ramova i ćelija, propusni opseg, kašnjenje ćelija, varijacija kašnjenja) koji se preslikavaju na protokole ATM mreža. Preslikavanje se izvodi između korisničkog i aplikacionog QoS-a, a aplikacioni QoS se preslikava na QoS prenosa i komutacije, odnosno na ATM protokole, tzv....

  17. RADNICI U OTVORENOM OKOLIŠU U UVJETIMA POVIŠENE TEMPERATURE - MEDICINSKI ASPEKT

    OpenAIRE

    Stipčević, Mario; Zahariev, Katarina; Lelas, Tanja; Krišto, Dijana

    2011-01-01

    SAŽETAK: U ovom je radu prikazan, s medicinskog gledišta, utjecaj povišene temperature prilikom fizičkog rada u otvorenom okolišu na ljudski organizam, te su preporučene smjernice koje bi trebale pomoći u zaštiti zdravlja ove skupine radnika. Prilikom samog fizičkog rada organizam proizvodi znatne količine topline. Zbog opterećenja vanjskom toplinom obrambeni mehanizmi organizma postaju dodatno opterećeni. Učinak aktivacije brojnih obrambenih mehanizama može se pojednostavljeno sažeti na č...

  18. Utjecaj korištenja probiotika i prebiotika na aromatske spojeve i teksturalna i senzorska svojstva simbiotskog kozjeg sira

    Directory of Open Access Journals (Sweden)

    Özer Kınık

    2017-02-01

    Full Text Available U ovom radu istražen je utjecaj probiotika, te inulina i oligofruktoze, na simbiotski kozji sir tijekom zrenja. U kontrolnoj grupi su utvrđene najniže koncentracije aromatskih spojeva, dok je dodatak probiotika u proizvodnji sira povećao koncentraciju aromatskih spojeva. Također, u sirevima iz kontrolne grupe su utvrđene najveće vrijednosti čvrstoće. Dodatak probiotika i prebiotika je signifikantno utjecao na teksturalne karakteristike sira. Sirevi koji su ocjenjeni kao najbolji, proizvedeni su uz dodatak E. facium i oligofruktoze.

  19. Nalaz bakterije Listeria monocytogenes u ribi i ribljim proizvodima

    OpenAIRE

    Rožman, Jelena; Njari, dr. sc. Bela; Kozačinski, dr. sc. Lidija

    2016-01-01

    Listerioza je bolest koja se prenosi hranom a bakterija Listeria monocytogenes je jedan od najznačajnijih javnozdravstvenih problema i uvjet prometa hrane u svijetu. Prije svega povezana je s konzumacijom gotovih proizvoda. U ovom radu je pretražena svježa riba (brancin) i riblji proizvodi (dimljena i marinirana riba, orada i brancin) na nalaz bakterije L. monocytogenes. Također, pretraženi su uzorci brisova uzeti s radnih površina i ruku djelatnika u pogonima prerade morske ribe. Bakterija L...

  20. ZAŠTITA OD BUKE U GLAZBENOJ DJELATNOSTI

    OpenAIRE

    Vedenik, Leon

    2008-01-01

    SAŽETAK: Odgovarajuće osiguravanje sigurnosti i zaštite zdravlja na radu zaposlenicima, prvenstveno profesionalnim glazbenicima u glazbenoj djelatnosti, zbog izloženosti buci itekako je važno, budući da njihov opstanak ovisi upravo o odgovarajućim uvjetima rada. Mnogi od njih nakon niza godina sviranja, odnosno rada u glazbenoj djelatnosti ogluše upravo zbog neodgovarajućega poslodavčeva osiguravanja mjera zaštite od buke. Opasnost od buke koja nastaje prilikom sviranja različitih instrumenat...

  1. Pregled odabranih pristupa vodstvu i njihova primjena u suvremenim organizacijama

    OpenAIRE

    Gotal, Maja

    2013-01-01

    U radu se govori o pojmu vodstva, domeni vodstva koja se sastoji od tri elementa - vođe, sljedbenika i situacije, te se govori o odnosu vodstva i moći. Dan je i pregled nekoliko odabranih pristupa vodstvu s naglaskom na njihovu primjenu u suvremenim organizacijama. Rad govori o pristupu temeljenom na osobinama, pristupu temeljenom na vještinama, na stilu, situacijskom pristupu, transformacijskom vodstvu, teoriji puta do cilja te novijim stilovima vodstva (trening, supervodstvo, vodstvo služen...

  2. Predpristupni ekonomski program 2005.-2007. Socijalna politika

    OpenAIRE

    Vlada Republike Hrvatske

    2005-01-01

    Vlada Republike Hrvatske usvojila je u listopadu 2004. godine Predpristupni ekonomski program 2005.-2007. Riječ je o dokumentu koji analizira ekonomsku politiku u različitim područjima, identificiraključne probleme te buduće reformske poteze u sljedeće dvije godine, tj. u okviru procesa pridruživanja Europskoj uniji. Dio programa posvećen je i socijalnoj politici te se analiziraju područja zaposlenosti, zaštite na radu, mirovinskog sustava, doplatka za djecu, socijalne skrbi, zaštite djece i ...

  3. Sanacija korita i vodopada na rijeci Plivi u Jajcu

    OpenAIRE

    Milašinović, Zoran; Zovko, Danijela; Lukić, Ivana

    2010-01-01

    Prikazuje se stradanje korita i vodopada rijeke Plive te zahvati kojima su se kroz povijest pokušale sanirati nastale štete. Pri izradi idejnog rješenja prikazanog u ovom radu, pošlo se od ideje da se osigura globalna i lokalna stabilnost vodopada, a i njegova trajnost u dužem razdoblju. Opisani su i sanacijski zahvati duž korita i na vodopadu kojima se pokušalo zadovoljiti osnovni kriterij koji se odnosi na to da treba osigurati ponovno taloženje sedre u vodotoku rijeke Plive.

  4. Spongiozna encefalopatija (1920.–2010.)

    OpenAIRE

    Jung, Mirko

    2010-01-01

    U radu se istražuju prve prionske bolesti od kojih je većina genetskog podrijetla. Uključuju točkaste mutacije (promjena jedno baznog para, change in a single base pair Adenine/Guanine, Thymin/Cytosine) DNA, insercija oktapeptida u N-ti dio prionskog proteina (3 do 216 oktapeptida), delecije (samo dva ili tri su poznata do sada). Tri ili više insercija potrebna za ovu bolest. To je 35 točkastih mutacija (najčešće su na kodonima 102, 178 i 200). Najnovija varijanta CJB, koja nastaje konzumacij...

  5. Analiza razvojnih okruženja za PLC

    OpenAIRE

    Rešetar, Dejan

    2016-01-01

    U radu je provedena analiza sljedećih razvojnih okruženja za PLC (eng. Programmable Logic Controller): em4 soft, Step-7/MicroWIN v4.0, Codesys v3.5 i SoMachine Basic v1.4 SP1. Napravljen je i kratak uvod u povijest PLC-a kako bi se objasnio razlog razvoja PLC tehnologije. Sva navedena programska okruženja su instalirana na isto računalo te su istražene prednosti i nedostatci. Osim rada s programskim okruženjima PLC sustava, obrađene su komponente PLC sustava, PLC komunikacija i programski jez...

  6. Sposobnost opstanka informacionih sistema / Survivability of information systems

    OpenAIRE

    Boško Rodić; Dejan Vuletić

    2005-01-01

    U radu je opisan značaj i trend razvoja informacionih sistema u savremenom društvu, a definisani su i drugi značajni pojmovi radi boljeg razumevanja problema. Prikazana su i četiri aspekta rešenja sposobnosti opstanka informacionih sistema koje predlaže Computer Emergency Response Team (CERT). / The article deals with importance and trend of information systems in modern society. In the article are defined, beside survivability, other relevant ideas necessary for better understanding of the p...

  7. Sposobnost opstanka informacionih sistema / Survivability of information systems

    Directory of Open Access Journals (Sweden)

    Boško Rodić

    2005-03-01

    Full Text Available U radu je opisan značaj i trend razvoja informacionih sistema u savremenom društvu, a definisani su i drugi značajni pojmovi radi boljeg razumevanja problema. Prikazana su i četiri aspekta rešenja sposobnosti opstanka informacionih sistema koje predlaže Computer Emergency Response Team (CERT. / The article deals with importance and trend of information systems in modern society. In the article are defined, beside survivability, other relevant ideas necessary for better understanding of the problems. Also, in the article are illustrated four aspects of information system survivability solution by Computer Emergency Response Team (CERT.

  8. Implicitni izvori u Marulićevu Tumaču uz natpise starih: Niccolò Perotti, Pomponio Leto i drugi

    OpenAIRE

    Lučin, Bratislav

    2012-01-01

    U radu se najprije daju opći podatci o Marulićevu djelu In epigrammata priscorum commentarius i opisuje se žanrovski okoliš u kojem se ono pojavljuje. Budući da u svojim tumačenjima antičkih natpisa Marulić pokazuje prilično temeljito i raznovrsno poznavanje starine, valja se zapitati otkud potječu takva njegova znanja. Dio izvora sam je izrijekom naveo, pa ih ovdje nazivamo eksplicitnima: ima ih ukupno 35, od kojih 31 pripada poganskoj antici, a 4 su kršćanska. Pokazalo se, međutim, da iz ek...

  9. LITTERAE OLIM IN MARMORE INSCULPTAE: HUMANISTIČKA EPIGRAFIJA NA ISTOČNOJ OBALI JADRANA DO MARULIĆEVA DOBA

    OpenAIRE

    Lučin, Bratislav

    2015-01-01

    U radu se uvodno daju opće naznake o mjestu epigrafie u humanizmu i o stanju istraživanja hrvatske humanističke epigrafie. Nakon kratka osvrta na interes za antičke natpise u srednjem vijeku, slijedi opširniji prikaz humanista epigrafiara koji su djelovali na Apeninskom poluotoku; naročita se pozornost posvećuje njihovim vezama s Dalmacijom i Dubrovnikom. Uz Cirijaka iz Ancone, koji je bio povezan s humanistima u Zadru, Trogiru i Dubrovniku, čini se da je važnu i dosad nepoznatu ulogu u Sp...

  10. PISMENI I USMENI KOMUNIKACIJSKI UZORCI U NASTAVI ENGLESKOG JEZIKA U HOTELIJERSTVU I TURIZMU

    OpenAIRE

    Bosnar-Valkovic, Brigita

    2003-01-01

    Promatramo li jezik ne samo kao sustav pravila, trebamo razlikovati između poznavanja različitih pravila i njihove odgovarajuće i djelotvorne upotrebe u priocesu komunikacije. Na ovom polazištu počiva i komunikacijski pristup u nastavi stranih jezika, što je ujedno i vrlo značajna komponenta engleskog nastavnog materijala kojeg koristimo u radu s našim studentima. Pisani jezik koji se sastoji od korektno formuliranih rečenica se veoma razlikuje od razgovornog jezika koji se sastoji od krać...

  11. Ispitivanje ovladanosti mađarskim kao stranim jezikom u sklopu državno akreditiranih ispitnih sustava u Mađarskoj

    OpenAIRE

    Žagar-Szentesi, Orsolya

    2008-01-01

    U radu će se kratko prikazati način kako se desetljećima uhodani sustav tzv. državnoga ispitivanja sa svojim monocentričnim režimom provjere znanja i trostupnjevitom skalom vrjednovanja ovladanosti stranim jezikom tijekom devedesetih godina postupno prilagodio europskim standardima textsc{(cef)} koji danas u potpunosti obilježavaju mađarsku scenu poučavanja stranih jezika i ispitivanja. Također će se dati sažet pregled o institucionalnim okvirima ispitivanja (Centar za ak...

  12. MODELIRANJE SORTIMENTNE STRUKTURE DUBE]IH STABALA BUKVE

    OpenAIRE

    Paladinić, Elvis; VULETIĆ, Dijana

    2006-01-01

    Istraživanjem se nastojao izna}i prijedlog za poboljšanje postojećih modela procjene drvnih sortimenata koje koristi šumarska operativa. Poticaj istraživanju te tematike bili su česti navodi iz šumarske operative o neslaganju planskih vrijednosti sortimenata sa vrijednostima sortimenata ostvarenim u proizvodnom procesu (po kolićini i kvalitetnoj strukturi). U radu su istraženi međuodnosi planiranih količina drvnih sortimenata (po Hs-PPI programu) i procijenjenog obujma sortimenata od stran...

  13. Poredbena analiza pojma asimilacije u engleskome i hrvatskome jeziku

    OpenAIRE

    Škifić, Sanja

    2008-01-01

    U ovome se radu najprije razmatra sam pojam asimilacije, odnosno način njegova definiranja u različitih autora. Razrada problematike sastoji se od dva glavna dijela, u kojima se odvojeno analizira asimilacija u engleskome i hrvatskome jeziku. Razmatraju se različite vrste asimilacija, ali i razlikovanje asimilacije od adaptacije, kako u engleskome, tako i u hrvatskome jeziku. Slijedi poredbena analiza asimilacije. Ona uključuje sličnosti i razlike do kojih se dolazi proučav...

  14. Vojne topografske karte / Military topographic maps

    Directory of Open Access Journals (Sweden)

    Mirko Borisov

    2006-01-01

    Full Text Available U radu se prikazuje stanje vojnih topografskih karata u Srbiji i Crnoj Gori, kao i pregled i razvoj topografsko-kartografskih sistema u nekoliko zemalja u svetu. Jedan od zadataka koje Partnerstvo za mir postavlja iz domena geoinformacija jeste izrada novih vojnih topografskih karata. / The article shows the military topographic maps in Serbia and Montenegro. Also, it gives the overview and development of topographic-cartographic systems of some countries in the world. One of the goals that Partnership for Peace has set, concerning cartography, is the making of new military topographic map.

  15. Određivanje daljine cilja pomoću video senzora i analiza uticaja grešaka i šuma merenja / Target range evaluation using video sensor and analysis of the influence of measurement noise and errors

    Directory of Open Access Journals (Sweden)

    Dragoslav Ugarak

    2006-01-01

    Full Text Available U radu je opisan matematički model određivanja daljine cilja obradom video snimaka u toku praćenja. Analizirani su doprinosi parametara koji utiču na veličinu grešaka i određene su vrednosti standardnog odstupanja. / This paper presents mathematical model of determining target range by analyzing video frame during the tracking. The contribution of effective parameters to accuracy are analyzed and values of standard deviation are determined.

  16. Normativne orijentacije adolescenata u riziku iskazane kroz samoprezentaciju

    OpenAIRE

    Žižak, Antonija

    2006-01-01

    Uvid u literaturu pokazuje da se pod pojmom normativna orijentacija susreću i na različite načine integriraju neki elementi fenomena kao što su životni stil, orijentacija na budućnost, vrijednosne orijentacije te obilježja moralnog razvoja. Većina istraživanja usmjerena na upoznavanje navedenih aspekata života adolescenata slična je po metodološkom, kvantitativnom pristupu. U ovom radu se koristi kvalitativni pristup. Kao strategija za prikupljanje podataka o normativnim orijentacijama djece ...

  17. Nastojanja Vladimira Filipovića na zbližavanju filozofije i prirodnih znanosti

    OpenAIRE

    Dadić, Žarko

    1985-01-01

    U radu se iznose Filipovićeva gledišta o vezi prirodnih znanosti i filozofije, osobito ona koja su zastupana u njegovom predavanju Prirodne znanosti i filozofija na simpoziju Hrvatskoga prirodoslovnog društva 1975. godine. Ističe se važnost Filipovićeve tvrdnje da je nemoguć izolirani razvitak prirodnih znanosti i filozofije. Prikazuje se i Filipovićevo praktično djelovanje u tom pogledu, pa se opisuju njegova nastojanja na povezivanju i koordinaciji istraživanja povijesti prirodnih znanosti ...

  18. KONTINUIRANO MOTRENJE MOSTOVA

    OpenAIRE

    Šarić, Mladen; Kaluđer, Filip; Draganić, Hrvoje

    2011-01-01

    Mostovi su važne infrastrukturne građevine i zbog toga ih je potrebno održavati. Održavanje obuhvaća preglede i popravak uočenih oštećenja. U radu je dan pregled nekih od metoda za kontinuirano motrenje i primjeri njihove primjene na izgrađenim mostovima. Metode koriste: GPS (Global Positioning System; satelitski Sustav globalnog pozicioniranja), akcelerometre, optička vlakna, anemometre, tenzometre. Iako je postavljanje opreme za kontinuirano motrenje mostova isprva skuplje od uobičajenih me...

  19. Utjecaj koncentrata proteina sirutke na rast i preživljavanje probiotičkih bakterija u sirutki

    OpenAIRE

    Matijević, Bojan; Božanić, Rajka; Tratnik, Ljubica; Jeličić, Irena

    2008-01-01

    U radu je istražen utjecaj dodatka koncentrata proteina sirutke (KPS) na rast i aktivnost probiotičkih sojeva Lactobacilus acidophilus La-5 i Bifidobacterium animalis subsp. lactis BB-12 u slatkoj rekonstituiranoj sirutki te na njihovo preživljavanje tijekom 28 dana hladnog čuvanja (4 °C) fermentirane sirutke. Praćena je fermentacija sirutke pri 37 °C bez i sa dodatkom 1,5 i 3% KPS. Fermentacija sirutke s Lactobacilus acidophilus La-5, kojoj je dodano 3% KPS, bila je oko 1 sat kraća (~14 sati...

  20. Plemićka obitelj Krupić iz Velike Mlake u 15. i 16. stoljeću

    OpenAIRE

    Miljan, Suzana

    2011-01-01

    U radu se prikazuje povijest turopoljske plemićke obitelji Krupić iz Velike Mlake od prvog spomena 1439. g., do kraja 16. stoljeća. Ovdje se prikazuju pripadnici obitelji koji su živjeli u srednjem vijeku, jer u Turopolju nastupa novo razdoblje obnovom bratstva 1560. godine. Obitelj se može pratiti u izvorima do kraja 17. stoljeća kada izumire u muškoj liniji. Identificiraju se članovi obitelji i prikazuju njihovi posjedi, odnos Krupića prema turopoljskoj općini te doseljavanje i život nekih ...

  1. Proizvodnja gelan gume fermentacijom, njezino izdvajanje, pročišćavanje i primjena

    OpenAIRE

    Bajaj, Ishwar B.; Survase, Shrikant A.; Saudagar, Parag S.; Singhal, Rekha S.

    2007-01-01

    Tijekom fermentacije mikroorganizmi izlučuju egzopolisaharide, polimere topljive u vodi. Gelan guma je biopolimer odnedavno uvršten u skupinu mikrobnih polisaharida koji se zbog svojih novih svojstava sve više primjenjuje u industriji hrane te farmaceutskoj i kemijskoj industriji. Proizvodi ga tvrtka C.P. Kelco u Japanu i SAD-u. Dodatnim istraživanjem i razvojem tehnologije biopolimera proširit će se njegova primjena. U ovom je radu dan kritički osvrt na podatke o sintezi gelan gume s pomoću ...

  2. Mehanizam za propagaciju hidrauličkog frakturiranja tijekom stimuliranja naslaga naftnih škriljaca kroz horizontalnu bušotinu

    OpenAIRE

    Ma, Tian-Hui; Wu, Quan-ao; Tang, Chun-An; Liu, Hong-Yuan

    2016-01-01

    Način razlamanja stijenske mase u naslagama naftnih škriljaca jedan je od glavnih čimbenika koji djeluju na učinkovitost hidrauličkog frakturiranja (frakiranja). U ovom su radu provedena fizikalna ispitivanja i numeričko modeliranje u svrhu sustavnog ispitivanja učinka in-situ (podzemnog) naprezanja i kuta bušenja na stvaranje tlaka zbog hidrauličkog frakturiranja, širenje razlamanja i način razlamanja u horizontalnoj bušotini naftnog nalazišta Shengli u Luojia pokrajini, u izvođenju Sinopec ...

  3. POVEZANOST IZMEĐU MAKROEKONOMSKIH VARIJABLI I BURZOVNIH INDEKSA U ODABRANIM ZEMLJAMA SREDNJE I ISTOČNE EUROPE

    OpenAIRE

    Barbić, Tajana; Čondić-Jurkić, Iva

    2011-01-01

    U ovom se radu testira postojanje informacijske (ne)efikasnosti na tržištima kapitala odabranih zemalja Srednje i Istočne Europe. Na primjerima hrvatskog, češkog, mađarskog, poljskog i slovenskog tržišta kapitala, analizira se veza između burzovnih indeksa i makroekonomskih varijabli koje uključuju inflaciju, novčanu ponudu, kamatnu stopu na tržištu novca i devizne pričuve. Postojanje dugoročne bilateralne ravnotežne veze između burzovnog indeksa, s jedne strane, i makroekonomskih varijabli s...

  4. Sociologija na raskršću

    OpenAIRE

    Županov, Josip; Šporer, Željka

    1985-01-01

    U ovom se radu iznosi i problematizira položaj sociologije kao akademske i kao aplikativne discipline. Naglašava se da se sociologija prvo razvijala kao akademska, a tek zatim kao aplikativna disciplina u različitim područjima. Postavlja se i pitanje o eventualnim potrebama prilagođavanja profesionalnog školovanja sociologa potrebama stvaranja solidnijih pretpostavki za izobrazbu »primijenjenog sociologa« (za razliku od »konvencionalnog«). Situacija se u nas analizira kroz prizmu dileme: ...

  5. Utjecaj sladila stevie na kvalitetu aromatiziranog jogurta od jagode

    OpenAIRE

    Lisak, Katarina; Jeličić, Irena; Tratnik, Ljubica; Božanić, Rajka

    2011-01-01

    Stevia je prirodno sladilo, bez kalorijske vrijednosti, 200-300 puta slađa od saharoze, a dobiva se ekstrakcijom lišća biljke Stevia rebaudiana. S obzirom na manju kalorijsku vrijednost proizvoda zaslađenih steviom velika je mogućnost njenog korištenja u mliječnoj industriji. U ovom je radu ispitivana razlika u slatkoći aromatiziranog jogurta od jagode sa dodatkom saharoze, stevie te jednakih udjela saharoze i stevie. Jogurti su zaslađeni u tri različite koncentracije (3; 4,5 i 6 %/100 g jogu...

  6. DARC servis konvencionalne FM radio-difuzije / DARC service conventional FM radio broadcasting

    Directory of Open Access Journals (Sweden)

    Mladen Manjak

    2006-07-01

    Full Text Available Konvencionalna FM radio-difuzija može ponuditi dodatne servise uz pomoć podnosioca smještenih u slobodnom dijelu osnovnog opsega multipleksiranog signala. U radu su prikazane osnovne karakteristike DARC servisa FM radio-difuzije i njegove moguće primjene. / Conventional FM radio broadcasting can offer additional services by means of a subcarrier placed in a clear part of the beseband multiplex signal. This paper contains elementary characteristics of DARC service conventional FM radio broadcasting and possible applications.

  7. Pozicioniranje, orijentisanje i određivanje daljine do cilja na samohodnom višecevnom raketnom lansirnom sistemu korišćenjem GPS i elektronskih karata / Positioning, orientation and determination of the distance to target on a self-propelled multiple rocket launcher system using GPS and electronic maps

    Directory of Open Access Journals (Sweden)

    Dragoljub J. Sekulović

    2010-07-01

    Full Text Available U radu je prikazano pozicioniranje i orijentisanje višecevnog raketnog sistema korišćenjem GPS prijemnika i određivanje rastojanja od lansera do cilja upotrebom geografskih koordinata. Koordinate koje se koriste za zadavanje pozicije cilja su geografske ili UTM, a dobijene su sa elektronske karte terena. / The GPS positioning and orientation of a self-propelled multiple rocket launcher is presented. The determination of the distance from the launcher to target using geographic coordinates is given as well The coordinates applied in determining the target position are either geographic or UTM coordinates while terrain electronic maps are obtained as a result.

  8. Ana Karenjina i Emma Bovary u metodičkom zrcalu

    OpenAIRE

    Tomić, Ana

    2015-01-01

    U ovome se radu predlažu nastavne metode, metodički postupci i metodički pristupi za komparativnu interpretaciju dvaju književnih likova – Ane Karenjine iz istoimenog romana Lava Nikolajeviča Tolstoja i Emme Bovary iz romana „Madame Bovary“ Gustavea Flauberta, u intertekstualnom nastavnom sustavu. Upućuje se na važnost ustrojenja stvaralačke nastave književnosti – i na srednjoškolskoj razini (na nastavi književnosti) i na visokoškolskoj razini (na nastavi metodike nastave književnosti) ‒ te s...

  9. Kinetička i termička svojstva sirove i pročišćene β-galaktozidaze, upotrijebljenih za proizvodnju galaktooligosaharida

    OpenAIRE

    2013-01-01

    β-Galaktozidaza je enzim koji katalizira hidrolizu laktoze. Primjenjuje se u prehrambenoj i mliječnoj industriji za dobivanje proizvoda sa smanjenim udjelom laktoze. U ovom su radu ispitana svojstva dvaju enzima, sirove i pročišćene β-galaktozidaze, dobivenih iz sojeva kvasca Kluyveromyces marxianus CCT 7082 i Kluyveromyces marxianus ATCC 16045. Određeni su sljedeći parametri: optimalna pH-vrijednost i temperatura, energija deaktivacije, termička stabilnost, kinetički i termodinamički paramet...

  10. Biometrijska identifikacija

    OpenAIRE

    Radmilović, Želimir

    2009-01-01

    Biometrijaje disciplina koja razvojem znanosti, a prije svega digitalno-in-formacijske tehnologije, dobiva sve značajnije mjesto u različitim područjima društvenog života, ljudskog rada i interesa. Tako se dostignuća biometrije vrlo često koriste u područjima medicinske dijagnostike, privatne zaštite, nadzora kretanja na određenim javnim prostorima (autentifikacija), identifi¬kacije osoba za nekriminalističke potrebe, poput nadzora izbora, dokazivanja očinstva i dr. U radu se prikazuju mogućn...

  11. Financijska edukacija i djelo Roberta Kiyosakija

    OpenAIRE

    Altaras Penda, Ivor

    2016-01-01

    Autor u ovome radu razmatra postojeće (i prevladavajuće) izvore financijske edukacije u Republici Hrvatskoj te preispituje stav o važnosti takve edukacije za suvremeni način života, na razini svakog pojedinca. Potom, autor predstavlja konceptualni okvir financijske edukacije što ga je u svojim djelima ponudio Robert Kiyosaki, američki poduzetnik, vlasnik poslovno – financijske edukativne kompanije i pisac bestseler knjiga upravo iz ovoga područja. S obzirom na to da su mnoge njegove knjige pr...

  12. Motivacija zaposlenika na području Varaždinske županije

    OpenAIRE

    Sušec, Erika

    2017-01-01

    Ovaj diplomski rad prikazuje koliki značaj ima motivacija zaposlenika na njihovu produktivnost. Motivaciji zaposlenika se ne pridaje dovoljno važnosti i ne shvaća je se kao glavnog pokretača dobrih odluka i dobro izvršenih radnih zadataka. U ovom je radu prikazano kako motivacija utječe na zaposlenike i kako je zaposlenicima malo potrebno da budu motivirani i zadovoljni na radnom mjestu. Poznato je da zadovoljan zaposlenik daje ne samo zadovoljavajuće, nego već i iznad...

  13. Stabilnost ugovora vs. mobilnost igrača

    Directory of Open Access Journals (Sweden)

    Andrijana Bilić

    2011-12-01

    Full Text Available U radu autorica razmatra problem usklađivanja ugovorne stabilnosti profesionalnih nogometaša i njihove slobode kretanja kao radnika. Nakon prikaza i analize koncepta međunarodne mobilnosti profesionalnih nogometaša, a posebice njegovog ograničenja u vidu sustava transfera uspostavljenog od strane FIFA-e, autorica ukazuje na najčešće probleme koji se javljaju, a vezani su uz definiranje statusa igrača, opciju jednostranog produljenja ugovora te jednostrani raskid ugovora i u tom smislu daje rješenja de lege ferenda.

  14. Sraštenost prstiju uz istodobnu višestruku nerazvijenost mekuši na sve četiri noge sa sekundarnom kontrakturom duboke fleksorne tetive u šteneta.

    OpenAIRE

    Rodríguez-Alarcón, Carlos A.; Beristain-Ruiz, Diana M.; Itzá, Mateo F.; Rivera-Barreno, Ramón

    2014-01-01

    U radu je iznesen opis i procjena stanja u dvomjesečnog, 7 kg teškog šteneta, belgijskog Malinois ovčara, s jednostavnom i potpunom sraštenošću prstiju, nerazvijenim metakarpalnim/metatarzalnim mekušina na sve 4 noge te s kontrakturama duboke digitalne fleksorne tetive na lijevoj prednjoj i desnoj stražnjoj nozi. U slučaju prve lijeve noge obavljeno je presjecanje duboke digitalne fleksorne tetive (2. do 5. prsta) na razini gornje i srednje falange. Operacija stražnje noge nije obavljena jer ...

  15. Ekonomika prava industrijskog vlasništva: primjena geografskog podrijetla kao marketinške strategije za konkurentnost u podsektoru vinarstva u Republici Makedoniji

    OpenAIRE

    Nacka, Marina; Georgiev, Nenad; Dabovic - Anastasovska, Jadranka

    2013-01-01

    U radu se analizira značenje prava industrijskog vlasništva i konkurentnosti podsektora vinarstva u četiri regije koje se koje se bave proizvodnjom vina, kako bi se prikazalo geografsko podrijetlo kao snažna marketinška strategija za konkurentnost. U makedonskom poljoprivrednom sektoru vrlo je niska svijest o ekonomskim pogodnostima koje donosi pravo industrijskog vlasništva. Makedonija ima konkurentan vinarski sektor, što proizlazi iz čimbenika uvjeta, posebice tradicije, geografskih i klima...

  16. SMIČNA STABILNOST MOTORNIH ULJA

    OpenAIRE

    Cerny, Jaroslav; Vaclavickova, Ivana

    2006-01-01

    Sažetak U radu se sažimaju utjecaji na viskoznost motornoga ulja, poput smične stabilnosti modifikatora viskoznosti, udjela goriva i/ili čađe te degradacije ulja izazvane toplinskom oksidacijom. Značaj pojedinačnih vidova praćen je za nekoliko motornih ulja različitih gradacija viskoznosti cestovnim radom vozila s benzinskim motorom, kao i onih s dizelovim motorima. Trendovi promjene viskoznosti praćeni su i procjenjivani.

  17. Analiza mogućnosti smanjenja emisija čađe i NOx na suvremenim sporohodnim dizelskim dvotaktnim motorima

    OpenAIRE

    Senčić, Tomislav

    2010-01-01

    Smanjenje emisija dušikovih oksida i čađe uz povećanje stupnja djelovanja glavni su ciljevi kod razvoja suvremenih dizelskih motora. Proizvođači velikih brodskih motora razvijaju sustave koji omogućuju veliku fleksibilnost u radu i različite strategije koje omogućuju postizanje spomenutih ciljeva. U tu svrhu se osim mjerenja koriste kompjutorske simulacije. Za proračun tvorbe štetnih tvari najprikladnije su 3D numeričke simulacije. Veliki brodski motor specifičan je zbog svo...

  18. Spaljivanje otpadnih procesnih plinova u proizvodnji uljno-pećne čađe

    OpenAIRE

    Zečević, N.; Barta, D.; Bosak, Z.; Avirović, G.; S. Šiklušić

    2009-01-01

    U radu je prikazana tehnologija proizvodnje uljno-pećne čađe i odabrano tehnološko rješenje u funkciji zaštite zraka. Prilikom industrijskog procesa proizvodnje uljno-pećne čađe osim glavnog proizvoda, kao sporedni proizvodi nastaju i otpadni procesni plinovi. Otpadni procesni plinovi nastali prilikom industrijskog procesa proizvodnje uljno-pećne čađe po kvalitativnom sastavu sastoje se od: ugljikovog (IV) oksida, ugljikovog(II) oksida, vodika, metana, sumporovodika, dušika, kisika i voden...

  19. Rezultati proračuna torzionih oscilacija u sistemu brodske dizel motorne propulzije / The results of torsional vibration calculation in the ship diesel engine propulsion system

    Directory of Open Access Journals (Sweden)

    Dragan R. Trifković

    2008-07-01

    Full Text Available U radu je prikazan tradicionalan postupak proračuna torzionih oscilacija u sistemu brodske dizel motorne propulzije. Realan sistem zamenjen je ekvivalentnim sistemom sa 19 stepeni slobode kretanja, za koji su analizirane slobodne i prinudne torzione oscilacije i odgovarajuća torziona naprezanja. / The traditional procedure of calculating the torsional vibrations in the ship diesel engine propulsion system is shown in this work. A real system is replaced with an equivalent 19-degree of freedom system and its free and forced torsional vibrations as well as appropriate torsional vibration strains have been analyzed.

  20. Razvoj hidroksiapatit-ciprofloksacin implantata za kosti “dizajniranjem kvalitete”

    OpenAIRE

    Nayak, Amit Kumar; Laha, Bibek; SEN, KALYAN KUMAR

    2011-01-01

    U radu je opisan razvoj hidroksiapatit (HAp)-ciprofloksacin implantata za kosti “dizajniranjem kvalitete”. Učinak nezavisnih varijabli poput količine dodanog lijeka, brzine miješanja i udjela ortofosforne kiseline na koncentraciju lijeka u HAp-sustavu dobivenom precipitacijom optimiran je koristeći 23 faktorijalno dizajniranje. Pomoću polinomske jednadžbe prvog reda određena je optimalna koncentracija lijeka u implantatima na bazi HAp. Dobiveni odgovori podudaraju se s predviđenim vrijednosti...

  1. Čovjek kao »animal symbolicum« Neki aspekti filozofske antropologije Ernsta Cassirera

    OpenAIRE

    Džinić, Ivo; Vuković, Davor

    2013-01-01

    Ovaj se rad oslanja na filozofsku misao Ernsta Cassirera i određenje čovjeka kao »animal symbolicum«, koje svoj temelj ima upravo u njegovoj filozofiji simboličkih formi. Na temelju Cassirerove teorije o simboličkim formama kao objektivacijama duha, u radu se želi analizirati mogućnost određenja identiteta čovjeka pojedinca kroz odabir i artikulaciju pojedinih simboličkih formi. Pitanje je od kojega se polazi: određuje li se kroz odabir pojedinih simboličkih formi, njihova opsega i intenzitet...

  2. ULOGA SUVREMENIH MEĐUNARODNIH PODUZEĆA U RAZVOJU PODRUČJA UPRAVLJANJA LJUDSKIM POTENCIJALIMA

    OpenAIRE

    Vidović, Maja

    2015-01-01

    U radu se analizira uloga suvremenih međunarodnih poduzeća u razvoju područja upravljanja ljudskim potencijalima kroz istraživanje njihove uloge u kreiranju i korištenju najboljih praksi u tom području. Analiza se temelji na četiri strategije za upravljanje zaposlenicima u podružnicama međunarodnih poduzeća (pojednostavljena, izvozna, adaptivna i integrativna strategija) te se analizira utjecaj koji svaka od navedenih strategija ima na prenošenje i/ili razvijanje prakse upravljanja ljudskim p...

  3. Primjena digitalizacije krošanja i metoda vizualizacije u izučavanju strukture sastojina

    OpenAIRE

    Dubravac, Tomislav

    2005-01-01

    U radu se iznose mogućnosti novog načina izučavanja strukture sastojina na primjeru digitalizacije krošanja i izrade digitalnog trodimenzionalnog modela sastojina (vizualizacije). Kao podloga za to, uzete su dvije naše karakterističe prirodne mješovite sastojine, sastojina hrasta lužnjaka i običnoga graba (Carpino betuli-Quercetum roboris, /Anić 1959/ emend. Rauš 1969) te sastojina bukve i jele (Omphalodo vernae-Fagetum Marinček et al. 1992). Na pokusnim plohama trajnoga karaktera sva su s...

  4. Poboljšani algoritam optimizacije za prerazmještaj sheme mreže nakon blokiranja energetskog sustava

    OpenAIRE

    Liang, Haiping

    2015-01-01

    Prerazmještaj sheme mreže važan je zadatak tijekom restauracije energetskog sustava poslije blokiranja. U radu se razmatra nepredvidljivost vremena restauracije i uspješnosti brzine restauracije tijekom prerazmještaj sheme mreže. Vrijeme restauracije dalekovoda i transformatora, granično vrijeme pokretanja jedinica i brzina restauracije izabrani su kao trapezoidne fuzzy varijable. Optimalni model za prerazmještaj sheme mreže poslije blokiranja energetskog sustava izrađen je na osnovu fuzzy ch...

  5. Kako poopćiti Talesov teorem?

    OpenAIRE

    Weiss, Gunter; Gruber, Franz

    2009-01-01

    Klasičan Talesov teorem moguće je poopćiti – ovisno o interpretaciji – na nekoliko elementarnih i apstraktnih načina. U ovom se radu pokušava, ne zahtijevajući potpunost, klasificirati te generalizacije. Svojom strukturom rad je prilagođen obrazovnim svrhama s naglaskom na matematičkom istraživanju. Uz više ili manje poznate činjenice, predstavljamo nove uvide i pristupe jednom od najznačajnijih teorema geometrije.

  6. Kvaliteta vode za napajanje goveda - čimbenik dobrobiti

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    Marjanović, Siniša; Tofant, Alenka

    2008-01-01

    U radu je opisana važnost higijenske ispravnosti vode za napajanje za zdravlje, proizvodnost i dobrobit goveda. U laboratoriju je određena kvaliteta vode iz četiri izvorišta, ispitivanjem organoleptičkih, fizikalno-kemijskih i bakterioloških parametara. Uzorci koji nisu zadovoljavali uvjete Pravilnika o zdravstvenoj ispravnosti vode za piće su dezinficirani, in vitro, u laboratoriju s dezinficijensima na bazi klora i vodikova peroksida. Zatim je u pokusu u praksi, dezinficirana voda za napaja...

  7. Studije o isejskoj carskoj skupini (I) - Cirijak iz Ankone, Issa i Providentia Augusta

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    Maršić, Dražen

    2017-01-01

    Kod dijela hrvatskih autora koji su se bavili arheologijom otoka Visa, tj. tamošnjim carskim skulpturama i carskim kultom općenito, uvriježilo se mišljenje kako Cirijak iz Ankone u svome djelu iz godine1436. donosi podatak kako je na Visu vidio bazu Augustova brončanog kipa s cjelovito očuvanim natpisom. Iscrpna analiza u ovom radu pokazuje da je to pogrešno protumačen podatak. Tekst tobožnjega natpisa s jedne strane u cijelosti odgovara legendama Tiberijevih aseva iz tzv. Providentia e...

  8. MONTESORI METODA – OSNOVA INTEGRISANOG UČENJA MATEMATIKE

    OpenAIRE

    Milinković, Jasmina; Bogavac, Dragana

    2011-01-01

    Rad nudi teorijsku komparativnu analizu Montesori metode i integrativne nastave. Savremene tendencije ukazuju na potrebu uključivanja integrativnog pristupa u obrazovnu praksu. Sa stanovišta konstruktivizma znanje se neprestano menja i rezultat je akcije i razmišljanja. Marija Montesori je razvila metod koji je intelektualno provokativan i motivišući. Njime se razvija kreativna, fleksibilna, autentična i konstruktivna ličnost. U ovom radu, mi smo se fokusirali na teorijske aspekte obe metode:...

  9. UTJECAJ ŽIVOTNIH I RADNIH UVJETA NA ZDRAVLJE RADNIKA MIGRANATA

    OpenAIRE

    Bubaš, Marija; Knežević, Bojana; Krišto, Dijana; Mihalinac-Bolanča, Marina; PEJNOVIĆ, NATALIJA; BOGADI-ŠARE, ANA

    2014-01-01

    SAŽETAK: Radnik migrant je svaki radnik koji je radio ili radi na poslu za koji dobiva naknadu u državi čiji nije državljanin. U radnike migrante ubrajaju se i skupine radnika koje u sklopu svojeg zanimanja rade u inozemstvu ili poslovno putuju. Globalizacija dovodi do stalnog porasta broja radnika migranata. Radnici migranti najčešće žive u lošim uvjetima, često rade na radnim mjestima gdje je niska razina zaštite na radu i na dulje vrijeme izbivaju iz obitelji. Često su izloženi visokom riz...

  10. ETNOLOSKO - FOLKLORISTICKI ZAPISI IVANA KUKULJEVIĆA- SAKCINSKOG U " DANICI ILIRSKOJ" (1842. - 1846.)

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    Đurić, Tomislav

    2001-01-01

    Ivan Kukuljevič-Sakcinski, povjesničar, književnik i pohtičar (1816.-1889.) u svom svestranom radu posebno se bavio istraživanjima duhovne kulture hrvatskog naroda. Stoga je izuzetan njegov doprinos hrvatskoj etnologiji i folkloristici. Dojmove sa svojih putovanja po hrvatskim krajevima opisao je u književnom listu "Danica Ilirska" i u razdoblju od 1842.-1846. objavio je velik broj članaka, pisama s vrijednim podacima o narodnom životu Hrvata polovinom 19. st. Ivan Kukuljević putuje i kraj...

  11. Domaća nafta prije 30 godina i danas (analiza i destilacija)

    OpenAIRE

    2010-01-01

    U radu su analizirani uzorci domaće nafte Slavonija i Moslavina te uzorak plinskog kondenzata koji se koriste u preradi u RN Sisak. Određene su fizikalno-kemijske karakteristike uzorkovanih nafti, plinskog kondenzata i njihovih frakcija te je načinjena atmosferska i vakuum destilacija pri čemu su korištene ASTM D 2892 i ASTM D 5236 metode. Dobiveni podaci predstavljaju fizikalno-kemijsku evaluaciju nafti u laboratorijskim uvjetima iz kojih proizlaze baze podataka o naftama (eng. crude oil ...

  12. Sastav arome topljenih sireva proizvedenih uz primjenu prirodnih aroma Cheddar sira i Parmezana

    OpenAIRE

    Kulić, Ljiljana; Hardi, Jovica; Carić, Marijana

    1991-01-01

    U industriji prerade mlijeka prirodne arome sira mogu da se koriste za dobivanje specifične arome pri proizvodnji topljenih sireva, jogurta, pavlake, maslaca, sira u prahu i raznih imitacija mliječnih proizvoda. Prednosti njihove primjene jesu: povećan intenzitet arome, ujednačenost i stalna kvaliteta te niža cijena u odnosu na odgovarajući sir. U ovom radu je praćen sastav arome topljenih sireva za mazanje proizvedenih primjenom prirodnih aroma sira (proizvođač International Flavors and Fran...

  13. PRIMENA MULTIMEDIJALNIH SERVISA U ŠIROKOPOJASNOM OKRUŽENJU ZA POBOLJŠANJE LOGISTIČKIH POTREBA VOJSKE

    OpenAIRE

    2012-01-01

    U radu je analiziran potrebni protok pojedinih multimedijalnih servisa i ukazano na mogućnosti primene nekih od servisa u širokopojasnom okruženju radi poboljšanja logističkih potreba vojske. Sve je veća potreba da se informacije prenose u različitom obliku, od govora, preko teksta, podataka i grafičke mirne slike, do pokretne video-slike. Zahtev za prenosom informacija u visokoj rezoluciji iziskuje povećanje protoka do nekoliko desetima Mb/s. Platformu za čitav niz multimed...

  14. Čimbenici što utječu na proizvodnju hlapljivih fenola u fermentacijama s mješovitim i čistim kulturama kvasaca Dekkera bruxellensis i Saccharomyces cerevisiae

    OpenAIRE

    Kosel, Janez; Čadež, Neža; Raspor, Peter

    2014-01-01

    U radu je ispitan utjecaj etanola i prekursora hidroksicimetne kiseline i vinilnog fenola na biosintezu hlapljivih fenola u fermentacijama s mješovitim i čistim kulturama kvasaca Saccharomyces cerevisiae i Dekkera bruxellensis. Analizirana su tri različita soja D. bruxellensis koja su pokazala jedinstveni profil proizvodnje hlapljivih fenola u fermentacijama s mješovitom i čistom kulturom kvasaca. Rezultati su pokazali da je u biosintezi s mješovitom kulturom, u usporedbi s čistom kulturom D....

  15. Moralno-istraživačka evaluacija vrijednosne dimenzije spolnosti i s njom povezanih pitanja bračnog i obiteljskog života

    OpenAIRE

    Vuletić, Suzana

    2010-01-01

    Ovaj rad donosi rezultate istraživačkih cjelina posvećenih temama spolnog morala, predbračnoga i obiteljskog života, kao dijela znanstveno-istraživačkog projekta Katoličkoga bogoslovnog fakulteta u Đakovu nazvanog “Kršćanski identitet i kvaliteta bračnog i obiteljskog života”. U radu se analiziraju četiri tematske cjeline koje pokušavaju uvidjeti odraz vjerničkog identiteta na odabranim područjima: predbračnih odnosa, korištenja prirodnih metoda reguliranja plodnos...

  16. MODELI UČENJA ODRASLIH I PROFESIONALNI RAZVOJ

    OpenAIRE

    Vizek-Vidović, Vlasta; VLAHOVIĆ ŠTETIĆ, Vesna

    2007-01-01

    U radu su detaljno prikazani neki modeli učenja odraslih relevantni za profesionalni razvoj. Raspravljene su razvojne perspektive u odrasloj dobi polazeći od teorije životnog raspona. U okviru tog pristupa smatra se da razvoj određen biološkim, psihološkim i sociokulturnim činiteljima u cjeloživotnoj perspektivi istodobno uključuje i rast i opadanje. Opisana su neka obilježja kognitivnog funkcioniranja u odrasloj dobi – intelektualno funkcioniranje, pod Catellovim modelom fluidne i krista...

  17. Modeliranje procesa biološke obrade otpadne vode na komunalnom uređaju grada Velika Gorica

    OpenAIRE

    Čurlin, M.; Bevetek, A.; Ležajić, Z.; Deverić Meštrović, B.; Kurtanjek, Ž.

    2008-01-01

    Obrada otpadne vode s aktivnim muljem izrazito je složen fizikalni, kemijski i biološki proces. Nestalnost sastava i protoka otpadne vode te vremenski promjenjive reakcije mješovite kulture mikroorganizama uvjetuju njegovu nelinearnost i nestacionarnost. Optimalno vođenje procesa je kompleksan zadatak, ali pravilno izrađen matematički model može poslužiti kao osnova za rješavanje. U ovom radu izrađena su dva modela za opis procesa obrade otpadne vode na uređaju grada Velika Gorica, sa zadaćom...

  18. Uticaj sastava polivinilhloridnih smeša i tehnoloških uslova proizvodnje na svojstva penastih podnih obloga

    OpenAIRE

    Radovanović, Rajko

    2016-01-01

    Mogućnost primene polivinilhloridnih (PVC) podnih obloga je određena krajnjim svojstvima koja zavise od sastava obloge i načina proizvodnje. Zbog složenog sastava i različitih načina pripreme PVC podnih obloga, veoma je teško tačno proceniti uticaj pojedinačnog procesnog parametara na svojstva dobijenog proizvoda. U ovom radu, da bi se ispitao uticaj sastava polivinilhloridnih smeša na svojstva PVC podnih obloga pripremljeno je 27 receptura u kojima su varirane: koncentracije ka...

  19. Potpora roditeljstvu: izazovi i mogućnosti

    OpenAIRE

    OBRADOVIĆ, Josip; Čudina-Obradović, Mira

    2003-01-01

    U svome se radu daje prikaz suvremenih psiholoških znanstvenih spoznaja o pojmu roditeljstva u okviru ekološkog shvaćanja obitelji, kao sustava interaktivnih podsustava majke, oca i djece. U okviru kontekstualnog modela roditeljskih odgojnih utjecaja (Darling i Steinberg, 1993.) iznose se istraživački rezultati o doživljaju roditeljstva kao zavisne i nezavisne varijable, o roditeljskom stilu i njegovu utjecaju na ponašanje djece, uz upozorenja na moguće međukulturne razlike, te se razmatra ko...

  20. Genetski modificirani organizmi (GMO) u prehrani ljudi

    OpenAIRE

    Alagić, Davor; Smajlović, Muhamed; Čaklovica, Faruk

    2005-01-01

    Autori su u radu prezentirali pregled sadašnje globalne situacije s različitim vidovima primjene genetski modificiranih organizama (GMO). Glavni akcent je dat izvorima i razlozima za široku teoretsku debatu o uključenju GMO-a u lanac prehrane. Glavne sadašnje i buduće prednosti primjene GMO-a u ljudskoj prehrani su također prezentirane. Pored toga, opisane su i osnovne karakteristike principa i smjernica za međunarodnu trgovinu, kontrolu i procjenu rizika GMO-a, naročito hrane bazirane na GMO...

  1. MOBILNI LOKACIJSKI SERVIS ZA POZICIONIRANJE I PREZENTIRANJE OBJEKATA KULTURNE BAŠTINE I WEB 2.0 TEHNOLOGIJE

    OpenAIRE

    Orehovački, Tihomir; Stapić, Zlatko; Bubaš, Goran

    2009-01-01

    Razvoj mobilnih tehnologija u posljednjih nekoliko godina omogućio je njihovu uporabu u svim područjima svakodnevnoga života. Jedna od komponenti koje sve više postaju sastavni dio naprednijih mobilnih uređaja (npr. mobilnih telefona i osobnih digitalnih pomoćnika) jest GPS prijemnik, a njegova je najčešća uporaba u uređajima za određivanje geografske lokacije i pomoć u navigaciji određenim područjem. U ovom radu predstavili smo koncept sustava za lociranje i prezentiranje informacija o objek...

  2. PROMJENE U SEKSUALNOSTI MLADIH? REZULTATI ISTRAŽIVANJA NOVOUPISANIH STUDENATA SVEUČILIŠTA U ZAGREBU OD 1998. DO 2008. GODINE

    OpenAIRE

    Landripet, Ivan; ŠEVIĆ, Sandra; CAR, Drago; Baćak, Valerio; MAMULA, Maja; Štulhofer, Aleksandar

    2010-01-01

    Imajući na umu nužnost empirijske utemeljenosti javnih politika za mlade, u ovome radu opisujemo dinamiku seksualnoga ponašanja, stavova o seksualnosti i informiranosti o temeljnim aspektima ljudske spolnosti u populaciji brucoša Sveučilišta u Zagrebu. Analize se temelje na longitudinalnom istraživanju provedenom 1998., 2003. i 2008. godine na uzorku najvećega hrvatskog sveučilišta. Protivno raširenoj percepciji kako mladi stupaju u seksualne odnose sve ranije i sa sve ma...

  3. Econophysics: Background and Applications in Economics Finance, and Sociophysics

    Directory of Open Access Journals (Sweden)

    Constantin Manea

    2013-02-01

    Full Text Available Ever since the official birth of the new transdisciplinaryfield of econophysics, whose admitteddate is the very beginning of the last decade of thetwentieth century, a number of Romanian researchershave authored some highly appreciated and frequentlycited papers published in international literature,especially articles. Such authors whom we couldmention, in a purely random selection, and inalphabetical order only, are Mircea Bulinski, RaduChişleag, Adrian Drăgulescu, Mircea Gligor,Margareta Ignat, Sorin Solomon, Ion Spânulescu, etc.

  4. Dentalni amalgam

    OpenAIRE

    Galić, Nada; Šutalo, Jozo; Prpić-Mehičić, Goranka; Anić, Ivica

    1994-01-01

    Dentalni amalgam je bio materijal izbora za ispune na stražnjim zubima tijekom proteklih 150 godina. U radu je prikazan p o vijesni razvoj amalgama, njegov obvezni sastav, te podjela dentalnih amalgama prema količinskom udjelu bakra i prema obliku čestica. Navedena su svojstva amalgama s posebnim osvrtom na njegovu toksičnost. Poznato je da se posljednjih godina pojačao napad na amalgam i u znanstvenoj i u popularnoj literaturi, a u svezi s njegovim navodnim patološkim djelovanjem ...

  5. Public Memory and detected signals of justice. Outline for a theory of public space in transition

    Directory of Open Access Journals (Sweden)

    Alexandru Florian

    2014-11-01

    Full Text Available In 1953, Radu Dinulescu, former chief of the 2nd Section within the General Staff of the Romanian Army, was convicted to 15 years of forced labor and 10 years of civic degradation. He was found guilty of several counts among which the involvement in the organization of the Iași Pogrom and the deportation of Jews. After several developments of the legal situation under the incidence of the political, the Supreme Court of Justice acquited him of war crimes in 1998.

  6. 3-Hidroksipiridin-4-oni (I. dio: Priprava i kelirajući učinak

    Directory of Open Access Journals (Sweden)

    Željka Car

    2016-12-01

    Full Text Available Od otkrića deferiprona 1982. godine, za sada jedinog 3-hidroksipiridin-4-onskog kelatora tvrdih metalnih iona koji je prošao klinička ispitivanja, ti su heterociklički derivati postali iznimno proučavana skupina spojeva. U radu su opisana dva najčešća načina priprave osnovne heterocikličke 3-hidroksipiridin-4-onske strukture, a to su Harrisova metoda i izravni postupak. Osim toga, dan je pregled važnijih fizikalno-kemijskih parametara potrebnih za preliminarnu evaluaciju kelirajućeg učinka dobivenih derivata.

  7. Integracija digitalne radio-difuzne mreže mobilne televizije i ćelijske mreže treće generacije

    Directory of Open Access Journals (Sweden)

    Milan Manojle Šunjevarić

    2013-02-01

    Full Text Available Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 U radu su prikazani rezultati istraživanja mogućnosti za integraciju radio-difuznih mreža za mobilnu televiziju i ćelijskih mreža treće generacije (3G. Analizirani su trendovi u pogledu razvoja usluge mobilne televizije, i dosadašnja istraživanja koja imaju za cilj traženje optimalnih načina za integraciju različitih tipova mreža. U radu su analizirane postojeće tehnologije za mobilnu televiziju, s posebnim osvrtom na DVB-H (Digital Video Broadcasting - Handheld tehnologiju. Analizirani su preduslovi, razlozi i mogućnosti za integraciju DVB-H i 3G mreže UMTS (Universal Mobile Telecommunications System, a zaključci ovih analiza su potkrepljeni rezultatima praktičnog rada. Na osnovu svih ovih istraživanja donesen je zaključak o opravdanosti realizacije hibridne DVB-H/UMTS mreže.

  8. Određivanje poligona vidljivosti kao čimbenika vrednovanja nekretnina u urbanom području na osnovi vektorskog 3D modela prostora

    Directory of Open Access Journals (Sweden)

    Hrvoje Tomić

    2010-06-01

    Full Text Available Učinkovito upravljanje prostornim resursima jedan je od glavnih čimbenika zdravoga gospodarskog rasta regije. Tehnološki napredak omogućava integraciju atributa vezanih uz prostor, stvarajući prostornu informacijsku podršku koja može servisirati sve kompleksnije društvene zajednice. Važna je komponenta tih sustava masovno vrednovanje nekretnina, posebice u urbanim područjima. U radu je, nakon objašnjenja modeliranja podataka te pohrane 3D modela prostora testnog područja u prostornu bazu podataka, opisan postupak računanja vidljivosti kao čimbenika vrednovanja nekretnina na području dijela grada Zagreba. Vidljivost je u radu predstavljena poligonom vidljivosti, dvodimenzionalnim geometrijskim likom, dobivenim presijecanjem neprekinute granice vidljivosti u svim smjerovima iz težišta objekta, uzimajući u obzir presjek horizontalne vizure i prepreka. Svakoj pojedinoj građevini na cijelom testnom području pridružen je pripadajući poligon vidljivosti, a pretpostavlja se kako je površinu tog poligona moguće korelirati s pozitivnim, odnosno negativnim utjecajem na vrijednost nekretnine. Obavljena su mjerenja brzine izvođenja funkcije računanja vidljivosti u testnom sustavu.

  9. Nova tehničko-tehnološka rešenja u kartografskom izdavaštvu / New technique and technological solutions in cartographic publishing

    Directory of Open Access Journals (Sweden)

    Mirko Borisov

    2007-07-01

    Full Text Available U radu se prezentuju nova tehničko-tehnološka rešenja pri formiranju baze podataka o prostoru iz koje se direktno preuzimaju podaci u izradi topografskih karata. Takođe, iznose se nove mogućnosti kartografsko-reprodukcijske pripreme za štampu i umnožavanje karata. U radu su korišćeni softverski paketi: Microstation, ArcGIS i PS/M. Brojni podaci koji se odnose na geoprostor, a koji se mogu dizajnirati GIS tehnologijom potvrđuju neophodnost i svrsishodnost primene savremene računarske opreme u izradi i korišćenju baze podataka o prostoru za kartografsko izdavaštvo. / The paper presents the new method of data processing and designing a database for the needs of capability producing topographic maps. Also it presents the new possibilities of the cartographic-reproduction preparing of data for printing and publishing. The program packages Microstation, ArcGIS and PS/M were used. Numerous information related to the geospatial, which can be quickly obtained by using GIS technology, confirms the indispensability and justification of applying modern computer equipment, as well as of designing geodatabase in map publishing.

  10. Ispitivanje GPS RTK prijemnika Geotronics Geotracer 2200 : Testing the GPS RTK receiver Geotronics Geotracer 2200

    Directory of Open Access Journals (Sweden)

    Nedim Tuno

    2011-03-01

    Full Text Available U ovom radu izvršen je prikaz značaja periodičnog ispitivanja i kalibriranja geodetskih mjernih instrumenata standardnim postupcima u cilju postizanja željenih rezultata. Poseban akcenat je stavljen na standarne postupke ispitivanja i kalibriranja kompleksnih geodetskih instrumenata za GNSS mjerenja, koja se u geodetskoj praksi masovno primjenjuju već nekih 20-tak godina. U radu je izvršen prikaz standardnog ISO postupka ispitivanja RTK instrumenta kao i metoda ispitivanja tačnosti prijemnika u testnoj geodetskoj mreži. : This paper presents an overview of the importance of periodic testing and calibration of geodetic measuring instruments by standard procedures in order to achieve the desired results. Special attention is placed on the standard procedures of testing and calibration of complex geodetic instruments for the GNSS measurements, which are in geodetic mass practice for some 20 years. Standard ISO test procedure for RTK instruments was presented in the paper, as well as method for testing the accuracy of receiver using the geodetic test network.

  11. Analiza kontinualnih frekvencijski modulisanih radarskih signala primenom vremensko-frekvencijskih transformacija i korelacionih tehnika / FMCW radar signal analysis by time-frequency representations and correlation techniques

    Directory of Open Access Journals (Sweden)

    Slobodan Simić

    2007-10-01

    Full Text Available U radu su analizirana dva metoda za detekciju i procenu parametara radarskih signala s malom verovatnoćom presretanja, pri čemu ne postoji saradnja između prijemnika i predajnika. Prvi algoritam čini analiza signala pomoću vremensko-frekvencijskih transformacija zajedno sa tehnikama za prepoznavanje oblika. U osnovi drugog algoritma detekcije je procena periodične autokorelacione funkcije. Analizirani su kontinualni frekvencijski modulisani radarski signali (FMCW, često primenjivani u radarima s malom verovatnoćom presretanja. Korišćeni su test-signali, dobijeni eksperimentalnim putem. Realizovan je eksperiment s realnim predajnikom i prijemnikom FMCW signala, a rezultati obrade primljenih signala prikazani su u radu. / Two LPI signal detection and parameter estimation methods are analyzed in a non-cooperative context. The first method is based on the time-frequency signal analysis along with pattern recognition techniques. The second one is based on the estimation of a periodic autocorrelation function. Frequency modulation continuous wave (FMCW signals are analyzed as a class of waveforms often used in LPI radars. Experimentally obtained signals are used in tests. An experiment with a real FMCW signal transceiver and a receiver is carried out and the obtained signal analysis results are presented.

  12. Tačnost i modernizacija globalnog pozicionog sistema / Accuracy and modernization of the global positioning system

    Directory of Open Access Journals (Sweden)

    Slobodan M. Radojević

    2009-10-01

    Full Text Available U radu su pregledno prikazani sadašnja koncepcija i razvoj globalnog sistema pozicioniranja (GPS. Ukratko je opisan osnovni princip rada, glavne karakteristike i njegova tačnost. Sadašnja tačnost sistema je, uglavnom, dovoljna za orijentaciju, navigaciju na vodi, u vazdušnom prostoru i na kopnu, ali ne i za brojne druge delatnosti. U radu se analiziraju načini poboljšanja karakteristika sistema satelitskog pozicioniranja, koji bi trebalo da zadovolje strože sigurnosne zahteve. Na kraju je predstavljen razvoj programa modernizacije GPS do 2030. godine. / The development and the present concept of the Global Positioning System (GPS are presented clearly. There is also a short description of the basic operation principle and of the main GPS characteristics given, as well as its accuracy. The present accuracy of the system is mostly appropriate for orientation, nautical navigation, land navigation and aero navigation; however, for many other activities better accuracy is required. The article analyses methods to improve the characteristics of the satellite positioning system so as to comply with more stringent safety demands. The paper gives a clear overview of the development of a GPS modernization program up to the year 2030.

  13. Upotreba programskog paketa Microsoft Office Project 2007 u planiranju ishrane pripadnika Vojske Srbije / Application of the Microsoft Office Project 2007 for planning the army personnel feeding process

    Directory of Open Access Journals (Sweden)

    Radoš B. Mijatović

    2010-04-01

    Full Text Available U radu je prikazan način upravljanja projektima pomoću programskog paketa Microsoft Office Project 2007 sa težištem na planiranju ishrane. Pravilnu i uspešnu - efikasnu ishranu pripadnika Vojske nije moguće realizovati bez primene efikasnih metoda i tehnika za podršku odlučivanju. Primena savremenih metoda i tehnika u planiranju i organizovanju ishrane imala bi za rezultat stvaranje ušteda na raznim poljima delovanja (artikli hrane, transport, radna snaga, sredstva za rad, vreme, novčana sredstva i dr. U radu je prikazan samo deo mogućnosti programskog paketa Microsoft Office Project 2007 koje korisnici mogu proširivati i nadograđivati. / This paper presents possibilities of using the program realization of feeding process of the Army personnel with simulation of planning the daily menus as a concrete example. It presents the way of planning the menus and adding the human and material resources to each of planned courses. This program package also provides a range of other possibilities to users, which can produce savings in different fields and secure increase of work efficiency.

  14. Raseljavanje kao logistička operacija / Dislocation as logistic operation

    Directory of Open Access Journals (Sweden)

    Boban Milošević

    2004-05-01

    Full Text Available U ovom radu obrađuje se problem raseljavanja materijalnih sredstava i njihov razmeštaj na lokacijama, kao i mogućnost funkcionisanja elemenata sistema logističke podrške. U radu se određuje pojam raseljavanja. Opisan je način organizacije i tehnologije raseljavanja, gde se javlja potreba za optimizacijom različitih tereta i transportnih sredstava, kao i planiranje raseljavanja. Za tehnološke zahteve, koji se javljaju pri raseljavanju prikazan je način dimenzionisanja tehnoloških elemenata koji zadovoljavaju te zahteve. / Dislocation of material supplies (MS has been discussed as well as the functioning of logistic support system elements at different locations. After the definition, organization and technology of MS dislocation, the paper gives its planning and cases where optimization of different loads and transportation means is required. The method of dimensioning technological elements meeting the technological requirements during dislocation has been presented as well.

  15. Genomic structure and expression of immunoglobulins in Squamata.

    Science.gov (United States)

    Olivieri, David N; Garet, Elina; Estevez, Olivia; Sánchez-Espinel, Christian; Gambón-Deza, Francisco

    2016-04-01

    The Squamata order represents a major evolutionary reptile lineage, yet the structure and expression of immunoglobulins in this order has been scarcely studied in detail. From the genome sequences of four Squamata species (Gekko japonicus, Ophisaurus gracilis, Pogona vitticeps and Ophiophagus hannah) and RNA-seq datasets from 18 other Squamata species, we identified the immunoglobulins present in these animals as well as the tissues in which they are found. All Squamata have at least three immunoglobulin classes; namely, the immunoglobulins M, D, and Y. Unlike mammals, however, we provide evidence that some Squamata lineages possess more than one Cμ gene which is located downstream from the Cδ gene. The existence of two evolutionary lineages of immunoglobulin Y is shown. Additionally, it is demonstrated that while all Squamata species possess the λ light chain, only Iguanidae species possess the κ light chain.

  16. Slow waves, sharp waves, ripples, and REM in sleeping dragons.

    Science.gov (United States)

    Shein-Idelson, Mark; Ondracek, Janie M; Liaw, Hua-Peng; Reiter, Sam; Laurent, Gilles

    2016-04-29

    Sleep has been described in animals ranging from worms to humans. Yet the electrophysiological characteristics of brain sleep, such as slow-wave (SW) and rapid eye movement (REM) activities, are thought to be restricted to mammals and birds. Recording from the brain of a lizard, the Australian dragon Pogona vitticeps, we identified SW and REM sleep patterns, thus pushing back the probable evolution of these dynamics at least to the emergence of amniotes. The SW and REM sleep patterns that we observed in lizards oscillated continuously for 6 to 10 hours with a period of ~80 seconds. The networks controlling SW-REM antagonism in amniotes may thus originate from a common, ancient oscillator circuit. Lizard SW dynamics closely resemble those observed in rodent hippocampal CA1, yet they originate from a brain area, the dorsal ventricular ridge, that has no obvious hodological similarity with the mammalian hippocampus.

  17. Dvojezično obrazovanje gluhe djece

    OpenAIRE

    2012-01-01

    U radu se daje pregled teorijskih i praktičnih aspekata dvojezičnog obrazovanja gluhe djece. Razmatraju se spoznaje s područja dvojezičnosti čujućih bitnih za razumijevanje dvojezičnosti gluhih - definicije i vrste dvojezičnosti, značajke jezičnog razvoja dvojezične djece te prednosti dvojezičnosti. Razmatra se pojava ideje o dvojezičnosti gluhih, primjena modela dvojezičnosti čujućih na dvojezičnost gluhih, razlike u dvojezičnosti čujućih i znakovne dvojezičnosti te kulturološki aspekti dvoj...

  18. UTJECAJ HRANIDBE LIŠĆEM MEKSIČKOG SUNCOKRETA (Tithonia diversifolia, Hemsley, A. Gray) NA PROIZVODNE REZULTATE BROJLERSKIH PILIĆA

    OpenAIRE

    A.H. Ekeocha

    2012-01-01

    150 jednodnevnih Arbor Acres brojlerskih pilića nasumce je podijeljeno u pet pokusnih hranidbenih tretmana s po 30 pilića u svakom. Prvi hranidbeni tretman činile su standardne (osnovne) početna i završna krmna smjesa koje su predstavljale kontrolu. Ostali hranidbeni tretmani sadržavali su 2.5, 5.0, 7.5 i 10% lišća meksičkog suncokreta kao zamjenu za kukuruz i sojinu sačmu. U radu je ispitivan utjecaj hranidbenih tretmana na proizvodne rezultate i hematološke promjene kod pilića. Dodatak braš...

  19. Nova nalazišta vrste Senecio inaequidens DC. u Hrvatskoj

    OpenAIRE

    Milović, Milenko; Pandža, Marija

    2014-01-01

    Senecio inaequidens DC. (Asteraceae) je neofit podrijetlom iz Južne Afrike koji je u Europu slučajno unesen uvozom vune krajem 19. i početkom 20. stoljeća. Od 70-tih godina prošlog stoljeća brzo se proširio većim dijelom srednje, zapadne i južne Europe. Nakon nedavno objavljenog nalaza u Hrvatskom zagorju (Sv. Križ Začretje), u ovom radu se navode dva nova nalazišta u Dalmaciji (Dicmo i Biograd). Zbog odgovarajuće klime i velikog broja pogodnih staništa, možemo očekivati udomaćenje i širenje ...

  20. Ivan Nepomuk Cratey i njegov plan reforme poštanske službe u Dalmaciji 1804. godine

    OpenAIRE

    Škorić, Tihana

    2017-01-01

    U ovom radu analizira se reforma poštanske službe u Dalmaciji koju je 1804. godine u obliku izvještaja predstavio prvi upravitelj i ravnatelj pošte za Dalmaciju i Albaniju,1 Ivan Nepomuk Cratey. Kao izvorno arhivsko gradivo, izvještaj je u potpunosti sačuvan i pohranjen u Allgemeines Verwaltungsarchiv u Beču. Njegova analiza nije važna samo zato što daje odgovor na mnoga pitanja vezana za povijest i razvoj poštanske službe u Dalmaciji, već i zato što rasvjetljava političku, gospodarsku i druš...

  1. Intenzitet trošenja materijala kočnica rudarskog stroja za podizanje tereta

    OpenAIRE

    Ungureanu, Miorita; Ungureanu, Nicolae

    2017-01-01

    U radu se predstavlja dio istraživanja koja se odnose na tribološke aspekte kočnica rudarskog stroja za podizanje tereta. Istraživanje se sastoji od eksperimentalnog određivanja jačine trošenja za tarni materijal u dodiru s rubovima kočnicama. Oslanjajući se na uobičajena teoretska razmatranja i eksperimentalne modele, najprije je izmjeren intenzitet trenja tarnog materijala u skladu s početnom brzinom ruba kočnica, površinskom hrapavosti ruba i kontaktnim pritiskom između kočničke papuče i r...

  2. Modeliranje kretanja automobilskih jedinica realnim vojnim saobraćajnim tokom u koloni / Movement modeling of real military column traffic automobile units

    Directory of Open Access Journals (Sweden)

    Radomir S. Gordić

    2007-04-01

    Full Text Available U radu je prikazan model za ocenu efikasnosti i optimizaciju kretanja organizovanog vojnog saobraćajnog toka u koloni. Razrađeni i usavršeni model obezbeđuje brzu i jednostavnu realizaciju istraživanja motorizovanih kolona različitih karakteristika. Prikazani su model, metodologija i rezultati imitacionog modeliranja realnog organizovanog vojnog saobraćajnog toka automobilskih jedinica u koloni. Rad predstavlja originalan doprinos istraživanju realnog vojnog saobraćajnog toka u koloni. / Target of this research was appraisal efficiency and optimization developments of organized column traffic. Elaborated and perfected model provides quick and simple target research realization for the motorized columns with different characteristics. In this work, model, methodology and results of imitation modeling, for real organized column traffic, have been shown. Work represents an original contribution to effective military column traffic.

  3. Obilježja ponašanja potrošača tinejdžerske dobi kod izbora odjevnih predmeta

    OpenAIRE

    Muzić, Silvia

    2017-01-01

    Kroz ovaj diplomski rad željelo se ukazati na važnost koncepta marketinga u modnoj industriji kao glavnog čimbenika za ostvarivanje prihvaćenosti od strane potrošača te uspješne prodaje. Također su prikazana kvaliteta, cijena, marka proizvoda, imidž te pakiranje kao najznačajnija svojstva proizvoda u industriji tekstila. U radu je dat pregled ciljanog tržišta, točnije generacija Z kao i utjecaj životne sredine i životnog stila na potrošača tinejdžerske dobi te pregled motivatora potrošača tin...

  4. Evaluacija tranzicijskog vrtićkog programa za djecu s poremećajem iz spektra autizma

    OpenAIRE

    Vrljičak, Sanda; Frey Škrinjar , Jasmina; Stošić, Jasmina

    2016-01-01

    Zbog obilježja samog poremećaja, inkluzija djece s poremećajem iz spektra autizma (PSA) vrlo je složen i zahtjevan proces. Pružanjem znanstveno utemeljene stručne podrške u ranoj dobi potrebno je omogućiti razvoj vještina kojima će se osigurati pozitivni učinci uključivanja u vršnjačke skupine. U ovom radu prikazani su rezultati provođenja individualiziranih edukacijsko-rehabilitacijskih programa za 5 dječaka sa PSA-om predškolske dobi. Program se provodio u okviru posebne, tranzicijske skupi...

  5. Istraživanje automatskog područja onečišćenja u energetskoj rešetki

    OpenAIRE

    Hu, Bo

    2016-01-01

    Pojave bljeskanja i sijevanja na izolatorima postale su sve veći i glavni uzroci prekida dovoda struje. Rad na prevenciji greške postao je važan dio u održavanju ispravnosti vodova. U ovom je radu detaljno istraživana tematska mapa onečišćenja područja. Najprije je izrađen niz osnovnih pravila uključujući izvore onečišćenja, kontaminacije mjesta, meteorologije, atmosferskog okruženja, operativnog iskustva, klasifikacijom i kvantifikacijom čimbenika koji mogu utjecati na stupanj onečišćenja el...

  6. Analiza postojećeg stanja i potrebe razvoja sistema za procjenu vrijednosti nekretnina u Republici Srbiji : Analysis of actual status and needs for real estate valuation model development in Republic of Serbia

    Directory of Open Access Journals (Sweden)

    Branko Božić

    2016-12-01

    Full Text Available U radu je opisano stanje u oblasti razvoja tzržišta nekretnina u Republici Srbiji, sadašnji nosioci poslova procjene, neki primeri dobre prakse u Evropi i međunarodne organizacije koje tu oblast uređuju. Na kraju, na bazi analize pojedinih sistema vrednovanja u nekim evropskim državama, dat je prijedlog buduće organizacije,a koji je ujedno zasnovan i na specifičnostima u Republici Srbiji. : This article points out to real estate market in Republic of Serbia and main actors at the process of real estate valuation. Some international organizations at the area of property valuation were explaned, also. At the end releting to the good practice of some EU valuation systems, a proposal for new valuation system at the Republic of Serbia was explaned.

  7. Ispitivanje fizikalno-kemijskih pokazatelja kvalitete voda

    Directory of Open Access Journals (Sweden)

    Anita Ptiček Siročić

    2016-09-01

    Full Text Available U ovom su radu analizirani fizikalno-kemijski pokazatelji kakvoće otpadnih voda (kemijska potrošnja kisika (KPK, biokemijska potrošnja kisika (BPK5, koncentracija suspendiranih tvari tijekom ljetnih mjeseci (lipanj, srpanj i kolovoz 2013. i 2014. godine na centralnom uređaju za pročišćavanje otpadnih voda Čakovec, koji je predviđen za drugi stupanj pročišćavanja. Ljetni mjeseci 2014. godine ne pokazuju značajnija odstupanja vrijednosti pojedinih pokazatelja, ali u odnosu na iste mjesece u 2013. godini srednje mjesečne vrijednosti znatno su niže i nalaze se unutar dopuštenih maksimalnih koncentracija. Rezultati za lipanj, srpanj i kolovoz 2013. i 2014. godine ukazuju na učinkovito pročišćavanje otpadnih voda na pročistaču.

  8. ANALIZA ZVUČNOG POLJA OKO VIBRIRAJUĆE PLOČE

    OpenAIRE

    Skoblar, Ante

    2006-01-01

    U radu su prikazani analitički, numerički i eksperimentalni pristup u rješavanju problema stvaranja zvučnog polja oko vibrirajuće ploče. Analitički su određene vlastite vrijednosti vibracija ukliještene pravokutne ploče. Numeričkom metodom konačnih elemenata izračunate su vlastite vrijednosti ploče te odziv ploče pri zadanom opterećenju jednakom eksperimentu te vlastite vrijednosti te odziv zvučnog polja oko ploče. Strukturni valovi približno su određeni pomoću pomaka dok su valovi u okolnom ...

  9. Prevalencija i patološke promjene uzrokovane trakavicom Raillietina cesticillus u domaće kokoši (Gallus gallus domesticus) u himalajskom području Kašmira s umjerenim podnebljem – kratko priopćenje

    OpenAIRE

    T. Salam, Sheikh; S. Mir, Masood; R. Khan, Abdul

    2010-01-01

    U radu je prikazana prevalencija trakavice Raillietina cesticillus u domaće kokoši na području Kašmirske doline u razdoblju od siječnja 2005. do prosinca 2006. Ukupno je pretraženo 478 kokoši različite dobi i spola. Kokoši su nasumično sakupljene na području 10 sela. Za svaku je kokoš zabilježen klinički, parazitološki i patoanatomski nalaz. Istraživanjem je dokazano da je 23,22% (111/478) kokoši bilo invadirano istom trakavicom. U nekih životinja osim ove trakavice dokazane su i druge trakav...

  10. Terapija poremećaja čeljusnog zgloba okluzijskom udlagom: prikaz slučaja

    OpenAIRE

    Badel, Tomislav; Alajbeg, Iva; Marotti, Miljenko; Kocijan Lovko, Sandra

    2008-01-01

    Temporomandibularni poremećaji obuhvaćaju sve funkcijske poremećaje čeljusnih (temporomandibularnih) zglobova i žvačnih mišića. U radu se opisuje jedan od najčešćih - pomak zglobne pločice u anteriorni položaj, tzv. dislokacija. Ona se povezuje s nekoliko čimbenika - najčešće je to makrotrauma, na primjer udarac u čeljust, ili mikrotrauma povezana s kroničnom mišićnom hiperaktivnošću ili okluzijskom nestabilnošću. Magnetskom rezonancijom, neinvazivnom metodom za analizu tkiva, koristili smo s...

  11. POGREŠKE I NESREĆE NA RADNOM MJESTU

    OpenAIRE

    Adhikari, Pralhad

    2015-01-01

    SAŽETAK: U radnom okruženju pogreške su neizbježne. Nesreće nastaju zbog ljudskih pogrešaka i grešaka u sustavu, a za posljedicu imaju neželjene štete i ozljede. Nesreće na radu uzrokuju goleme gubitke u životima i imovini. Razne teorije na različite načine objašnjavaju uzroke nesreća. Neke pripisuju nesreće ljudskim čimbenicima dok druge smatraju da se uzroci nesreća mogu naći u greškama sustava ili načinu upravljanja. Neki su ljudi skloniji pogreškama od drugih, izloženih istim čimbenicima ...

  12. Analiza štetnog uticaja vibracija na posadu u transportnim sredstvima vojske Srbije / Analysis of risks from crew exposure to vibrations in military transport

    Directory of Open Access Journals (Sweden)

    Snežana B. Jovanović

    2009-10-01

    Full Text Available U radu je prikazana metoda za procenu rizika nastalog usled izloženosti čoveka vibracijama. Merenja vibracija koje se prenose na celo telo i na sistem šaka-ruka izvršena su za posadu helikoptera, rečnog broda i terenskog vozila. Izmerene vibracije ocenjene su prema kriterijumima 'štetnosti po zdravlje' i 'kvaliteta komfora'. / This paper presents test methods for assessing risks arising from human exposure to vibrations. The measuring of vibrations transmitted to the 'whole-body' and human 'hand-arm' system is carried out for helicopter, river boat and off-road vehicle crews. The measured vibrations are assessed according to the criteria of the 'health quality' level and the 'comfort quality' level.

  13. THE USE OF LAPTOP COMPUTERS, TABLETS AND GOOGLE EARTH/GOOGLE MAPS APPLICATIONS DURING GEOGRAPHY CLUB SEMINARS

    Directory of Open Access Journals (Sweden)

    FLORIN GALBIN

    2015-01-01

    Full Text Available In the current study, we aim to investigate the use of Google Earth and Google Maps Applications on tablet and laptop computers. The research was carried out during the Geography Club seminars organized at “Radu Petrescu” High School in the 2013-2014 school year. The research involved 13 students in various gymnasium and high school grades. The activities included: navigation with Google Earth/Maps, image capturing techniques, virtual tours, measuring distances or river lengths, identifying relief forms, and locating geographical components of the environment. In order to retrieve students’ opinions regarding the use of tablets and laptop computers with these two applications, they were asked to respond to a questionnaire after the activities took place. Conclusions revealed that students enjoyed using these applications with laptops and tablets and that the learning process during Geography classes became more interesting.

  14. Rezultati modeliranja borbenog manevra napada aviona na zemaljski cilj iz oštrog obrušavanja / The results of combat attack maneuver modelling on ground target using aircraft steep diving

    Directory of Open Access Journals (Sweden)

    Nikola Pekić

    2005-11-01

    Full Text Available U ovom radu prikazani su rezultati matematičkog modeliranja kretanja aviona u borbenom manevru pri napadu na zemaljski cilj iz oštrog obrušavanja. Kretanje aviona razmatrano je kao kretanje materijalne tačke u prostoru. Takođe, prikazane su prednosti aviona sa otklonom vektora potiska i njegove primene u manevru u odnosu na avion sa klasičnom pogonskom grupom i klasičnim aerodinamičkim upravljačkim površinama. / This paper presents the results of mathematical modeling of aircraft movement in combat maneuver during attack on ground target using steep diving. Aircraft movement is considered as movement of a material point in space. Also, the advantages of aircraft with thrust vector deflection and its applications during maneuver when compared to the aircraft with classical engines and classical aerodynamic controls.

  15. Osnovne karakteristike mobilnih sistema treće generacije i trendovi daljeg razvoja / Basic characteristics of the third generation mobile communication systems and development trends

    Directory of Open Access Journals (Sweden)

    Radiša Stefanović

    2008-01-01

    Full Text Available U radu su prikazane osnovne karakteristike treće generacije mobilne telefonije, kao i pregled servisa koji su dostupni u tele komunikacionoj mreži ove generacije. Izloženi su i zahtevi za razvoj četvrte generacije mobilne telefonije, kao i očekivani servisi. Buduće širokopojasne mreže će pomoću odgovarajućih mrežnih protokola i algoritama udovoljiti promenljivim zahtevima korisnika. / The basic characteristics of the third generation mobile telephony are presented as well as the summary of accessible services on 3G telecommunication networks. The development requests for the fourth generation mobile telephony and anticipated services are also given. The future wide bandwidth networks supported by adequate network protocols and algorithms will respond to varying user requests.

  16. Hvarski Arsenal u kontekstu ostalih mletačkih arsenala

    Directory of Open Access Journals (Sweden)

    Andrej Žmegač

    2012-12-01

    Full Text Available U radu je riječ o zgradi hvarskog Arsenala s obzirom na istovrsne zgrade Mletačke Republike. Autor iznosi podatke o ostalim arsenalima, onim najvećima kao i onim skromnijima, što se tiče brojnosti njihovih hala i zadaća koje su imali. Na temelju takva kontekstualiziranja ocrtava se povijesni značaj hvarskog Arsenala. Upućuje se na neke specifičnosti, poput reprezentativnog vanjskog oblikovanja. Podjednako se naglašava i istaknut središnji položaj zgrade i neuobičajeno dograđivanje kata nad arsenalskom halom.

  17. Reforma studija geodezije na Odsjeku za geodeziju Građevinskog fakulteta Univerziteta u Sarajevu : Reform of the study of geodesy at the Department of geodesy of Faculty of Civil Engineering, University of Sarajevo

    Directory of Open Access Journals (Sweden)

    Džanina Omićević

    2011-12-01

    Full Text Available U ovom radu prikazane su aktivnosti i ciljevi vezani uz implementaciju Bolonjskog procesa na Odsjeku za geodeziju Građevinskog fakulteta Univerziteta u Sarajevu. Prvi puta su predstavljeni novi programi studija geodezije organizovana u tri ciklusa: dodiplomski, diplomski i doktorski studij. Cilj je da sažeto iznesemo osnovne informacije o reformskom procesu, koji je u toku, a koji bi trebalo da dugoročno promijeni evropski visokoškolski sistem. : This paper presents activities and goals related with the implementation of the Bologna process at the Department of Geodesy of Civil Engineering, University of Sarajevo. For the first time, new curricula study of geodesy which are organized into three cycles: bachelor, master and postgraduete doctoral study are presented. The goal of this paper is to present basic informacion about ongoing reform proces, and that should change the long-term European university system.

  18. Demarkacija i obeležavanje V graničnog odseka državne granice između Srbije i Crne Gore i Republike Makedonije / Demarcation and denoting of the 5th section of the border between Serbia and Montenegro and Republic of Macedonia

    Directory of Open Access Journals (Sweden)

    Goran Prodanović

    2006-04-01

    Full Text Available U ovom radu govori se o demarkaciji i obeležavanju V graničnog odseka državne granice između Srbije i Crne Gore i Republike Makedonije. Posebno je naglašen tehnički deo, odnosno izvršenje terenskih geodetskih radova čiji su nosioci, sa srpskocrnogorske strane, bili pripadnici Vojnogeografskog instituta. / The topic of this text is demarcation and denoting of the 5 section of the border between Serbia and Montenegro and Republic of Macedonia (especially geodetic survey indispensable for these labors, -which members Joint Working Group of Serbia and Montenegro from Military Geographic Institute carried out.

  19. UTJECAJ PROMJENJIVE POSLOVNE OKOLINE NA VRSTE RIZIKA

    OpenAIRE

    Jakaša, Tina; Bratić, Diana; Iliopoulos, Fivos

    2009-01-01

    Promjene u poslovnom okruženju uvele su novi tip rizika u poduzeća elektroprivrede. Zbog toga je za poduzeća elektroprivrede vrlo važno identificirati rizike i naći korelaciju među njima, te to činiti redovito kako bi se zaštitile i povećale vrijednost kompanije. U ovom se radu predlažu sljedeće tri hipoteze: H1 Postoje promjene u tipu rizika u poduzećima elektroprivrede tijekom zadnjih 10 godina. H2 Postoji korelacija između intenziteta tržišne konkurencije i utjecaja prisutnih/postojećih ti...

  20. USKRSNULl SVIJET PROLEGOMENA UVODNIM RAZMATRANJIMA O RANIJOJ SREDNJOVJEKOVNOJ UMJETNOSTI IZMEĐU SAVE l DRAVE

    OpenAIRE

    Goss, Vladimir P.

    2005-01-01

    Iako bi se po naslovu možda moglo zaključiti da se radi o preliminarnom priopćenju, to uopće nije slučaj. Naprotiv radi se o zaključcima koji su ujedno i korak prema sustavnom istraživačkom radu na 'materijalu kojije odavna "potonuo" i koji treba uskrisiti kao važan segment hrvatske kulturne baštine. Autor se bavi tim materijalom od vremena svojih ranih studija o Bapskoj, Moroviću i Brodskom Drenovcu kasnih šezdesetih godina prošlog stoljeća. Razmatranja se temelje na prikupljenom poznavanju ...

  1. Određivanje krutosti planetarnog prenosnika / Determination of gear mesh stiffness in planetary gearing

    Directory of Open Access Journals (Sweden)

    Vojislav Batinić

    2008-04-01

    Full Text Available Kontaktna krutost zubaca jedan je od glavnih generatora unutrašnjih dinamičkih sila u spregama zupčanika planetarnih prenosnika. Neophodan je pri opisivanju dinamičkog ponašanja planetarnih prenosnika, tj. pri postavljanju jednačina dinamičke ravnoteže. U radu je prikazan metodološki pristup analitičkom i eksperimentalnom određivanju krutosti posmatranog planetarnog prenosnika. / Gear mesh stiffness in planetary gearing is one of the main generators of internal dynamic forces. It is necessary in describing dynamic behavior of planetary trains, i.e. in defining their equations of dynamic balance. This paper presents a methodological approach to experimental and analytical calculation of stiffness in planetary gearing.

  2. Strukturna analiza složenih planetarnih prenosnika snage / Structural analysis of compound planetary gear trains

    OpenAIRE

    Slavko Muždeka

    2005-01-01

    Određivanje osnovnih kinematičkih i dinamičkih karakteristika složenih planetarnih prenosnika je složen proces za koji je razvijeno više analitičkih, grafičkih i grafoanalitičkih metoda. U radu je prikazan način određivanja prenosnog odnosa, opterećenja elemenata i tokova snage za planetarni red sa spoljašnjim i unutrašnjim ozubljenjem preko polužne analogije i primene strukturnog (Wolfovog) simbola. Polužna analogija definisana je i za planetarni red sa spoljašnjim ozubljenjem, za koji je, t...

  3. Evaluacija dvije metode nastave za sigurnost rukovanja vatrenim oružjem

    OpenAIRE

    2008-01-01

    U radu se uspoređuju dvije metode nastave sigurnosti rukovanja vatrenim oružjem. Jedna metoda je Deset pravila, a druga metoda Četiri plus šest pra¬vila. Korištena je metoda komparativnih skupina u kojoj je svaka skupina (od po 20 muških i 20 ženskih ispitanika) učila pravila sigurnosti prema jednoj od metoda. Mjerenje ukupan broj počinjenih pogrešaka sigurnosti tijekom 10 vježbi školskim streljivom i tijekom sljedećih 10 vježbi bojnim streljivom. Bilježenojepet tipova pogrešaka sigurnosti: n...

  4. Kontrola tačnosti rezultata u simulacijama Monte Karlo / Accuracy control in Monte Carlo simulations

    Directory of Open Access Journals (Sweden)

    Nebojša V. Nikolić

    2010-04-01

    Full Text Available U radu je demonstrirana primena metode automatizovanog ponavljanja nezavisnih simulacionih eksperimenata sa prikupljanjem statistike slučajnih procesa, u dostizanju i kontroli tačnosti simulacionih rezultata u simulaciji sistema masovnog opsluživanja Monte Karlo. Metoda se zasniva na primeni osnovnih stavova i teorema matematičke statistike i teorije verovatnoće. Tačnost simulacionih rezultata dovedena je u direktnu vezu sa brojem ponavljanja simulacionih eksperimenata. / The paper presents an application of the Automated Independent Replication with Gathering Statistics of the Stochastic Processes Method in achieving and controlling the accuracy of simulation results in the Monte Carlo queuing simulations. The method is based on the application of the basic theorems of the theory of probability and mathematical statistics. The accuracy of the simulation results is linked with a number of independent replications of simulation experiments.

  5. Utjecaj jestivog filma od želatine, obogaćenog eteričnim uljem lovora, na kakvoću fileta kalifornijske pastrve (Onchorynchus mykiss) tijekom skladištenja u hladnjaku

    OpenAIRE

    Alparslan, Yunus; Baygar, Tuba; Baygar, Taçnur; Hasanhocaoglu, Hatice; Metin, Cansu

    2014-01-01

    U ovom je radu ispitan utjecaj filma od želatine, obogaćenog eteričnim uljem lovorovog lista, na kakvoću fileta kalifornijske pastrve (Onchorynchus mykiss) skladištene na (4±1) °C tijekom 26 dana. Fileti su ribe omotani u filmove od 8 %-tne želatine, koji su sadržavali 0; 0,1 ili 1 % (volumena po masi želatine) eteričnog ulja lovora, te pakirani u vakuumu. Tijekom skladištenja određivani su: senzorske značajke sirove i kuhane ribe, mikrobiološki parametri (ukupan broj živih stanica, te bro...

  6. UČENJE STRANOG JEZIKA KOD PREDŠKOLSKE DJECE: METODE VREDNOVANJA U OKRUŽENJU DJEČJEG VRTIĆA

    OpenAIRE

    Adžija, Maja; Sindik, Joško

    2014-01-01

    U radu opisujemo kako djeca usvajaju jezik. Poznato je da je rana dob najprikladnija za početak učenja stranoga jezika. Djelomično je tomu razlog što dijete do određene dobi učenje stranoga jezika doživljava kao dio prirodnog procesa. Za naše smo istraživnje morali proučiti teorije učenja jezika, nativističku teoriju usvajanja prema kojoj, Chomsky tvrdi, postoji urođeni faktor, to jest jezični skup informacija, a Lenneber kasnije te teorije razvija. Također smo istražili empirijsko – bihev...

  7. Sto godina Teorije redova čekanja / A hundred years of the Queueing Theory

    Directory of Open Access Journals (Sweden)

    Nebojša V. Nikolić

    2009-07-01

    Full Text Available U radu je prikazan nastanak i razvoj Teorije redova čekanja, poznate i kao Teorija masovnog opsluživanja. Opisan je i istorijsko-tehnološki kontekst vremena u kojem je došlo do publikovanja prvih radova u oblasti koja će se kasnije razviti u samostalnu naučnu disciplinu. U 2009. godini Teorija redova čekanja navršava čitav vek od svog nastanka. / The paper presents a short review of histrorical development of the Queueing Theory, also known as Theory of Waiting Lines or Theory of Mass Servicing. We described historical and technological conditions at the time when first Queueing Theory papers were published. The motivation for this report comes from fact that the year 2009 is the 100th birthday of this theory.

  8. Semantic 3D object maps for everyday robot manipulation

    CERN Document Server

    Rusu, Radu Bogdan

    2013-01-01

    The book written by Dr. Radu B. Rusu presents a detailed description of 3D Semantic Mapping in the context of mobile robot manipulation. As autonomous robotic platforms get more sophisticated manipulation capabilities, they also need more expressive and comprehensive environment models that include the objects present in the world, together with their position, form, and other semantic aspects, as well as interpretations of these objects with respect to the robot tasks.   The book proposes novel 3D feature representations called Point Feature Histograms (PFH), as well as frameworks for the acquisition and processing of Semantic 3D Object Maps with contributions to robust registration, fast segmentation into regions, and reliable object detection, categorization, and reconstruction. These contributions have been fully implemented and empirically evaluated on different robotic systems, and have been the original kernel to the widely successful open-source project the Point Cloud Library (PCL) -- see http://poi...

  9. Određivanje čistoće površine metalnih i keramičkih uzoraka

    OpenAIRE

    Štrakalj, Anita; Glavaš, Zoran; Sladojević, Milan

    2012-01-01

    U ovom radu određivana je čistoća površine metalnih i keramičkih uzoraka. Uzorci su pripremljeni mehaničkim i kemijskim čišćenjem. Čistoća površine određena je statičkom ekstrakcijskom metodom. Statička ekstrakcijska metoda pokazala se kao izuzetno dobra metoda za mjerenje čistoće površine. Dobiveni rezultati ukazuju da su oba korištena načina pripreme uzoraka u skladu s normom MIL-P-28809. Nešto bolji rezultati dobiveni su prilikom kemijskog čišćenja uzoraka.

  10. Utjecaj načina zrenja na udjel vode u bezmasnoj tvari i na udjel masti u siru Trapistu

    OpenAIRE

    Kirin, Slavko

    2001-01-01

    U radu je istraživan utjecaj načina zrenja na udjel vode u bezmasnoj tvari i na udjel masti u siru Trapistu. U sadašnjoj proizvodnji (Lura, Tvornica Bjelovar), sir Trapist zrije na prirodan način s oblikovanjem kore, te vakuumski upakiran u termoskupljajuče plastične vrećice, čime se dobije sir bez kore. Utvrđeno je da spomenuti načini zrenja uvjetuju signifikantne razlike u udjelu vode u bezmasnoj tvari sira. On je 5,34 % viši kod sira Trapista u vrećici u odnosu na sir Trapist s korom. Udje...

  11. HRVATSKI KATOLIČKI TISAK O PROGONIMA CRKVE U MEKSIKU (1926. – 1929.)

    OpenAIRE

    Patafta, Daniel

    2014-01-01

    U radu se raspravlja o krvavim progonima koji su zadesili Katoličku crkvu u Meksiku u razdoblju od 1926. do 1929. godine. Progoni su započeli dolaskom na vlast zagriženog antiklerikalca i slobodnog zidara Plutaca Eliasa Callesa, a plod su više desetljeća starog sukoba Katoličke crkve i liberalne Meksičke države, koja se počela stvarati u 19. stoljeću. Ustav iz 1917. godine u mnogome će ograničiti društveno i vjersko djelovanje meksičkih katolika, a s druge strane poslužit će Callesu da 1926. ...

  12. Kratka studija aktivizma europskog suda kroz presude o slobodi kretanja radnika

    Directory of Open Access Journals (Sweden)

    Petar Bačić

    2014-02-01

    Full Text Available Omogućavanje slobode kretanja radnika unutar Europske unije u funkciji stvaranja i jačanja unutarnjeg tržišta te realizacije bitnih ciljeva socijalne politike jedan je od temelja europskog projekta još od samog njegova oživotvorenja 1957. godine. Snažnu potporu takvoj politici omogućavala je aktivistička orijentacija Europskog suda koji je kroz svoj case-law s vremenom izvršio izuzetno veliki utjecaj na razvoj ovog prava i brojnih s njim povezanih pitanja. U ovom ćemo radu stoga pokušati osvijetliti aktivističku poziciju Europskog suda u specifičnom području – slobodi kretanja radnika i ostalim pojmovima vezanima uz rad.

  13. CRTICE IZ POVIJESTI SOCIJALNOG RADA S DJECOM I MLADIMA U RIZIČNIM OKOLNOSTIMA

    Directory of Open Access Journals (Sweden)

    Marijana Majdak

    2006-10-01

    Full Text Available U okviru dvogodišnjeg projekta „Povijest socijalnog rada u Istočnoj Europi od 1900. do 1960.“ Izučavana je povijest socijalnog rada u Hrvatskoj s posebnim naglaskom na skrb o djeci i mladima. Izvori podataka za djecu i mlade u rizičnim okolnostima u Hrvatskoj u razdoblju 1900.-1960. bili su dokumentacija i literatura Državnog arhiva, Gradskog arhiva grada Zagreba, arhive ustanova za djecu i omladinu, Nacionalna i sveučilišna knjižnica te razgovor sa živućim osobama koje su sudjelovale u radu s tom populacijom. Ovdje je dan prikaz glavnih problema u društvu vezanih uz područje skrbi za djecu i mlade s rizičnim ponašanjima, te zakonske regulative prema maloljetnim počiniteljima kaznenih djela.

  14. O predstavkama i pritužbama Ministarstvu unutarnjih poslova Republike Hrvatske

    Directory of Open Access Journals (Sweden)

    Damir Juras

    2013-10-01

    Full Text Available U radu se, uz navođenje statističkih podataka, daje prikaz zakonodavstva kojim je regulirano podnošenje i ispitivanje predstavki i pritužbi na rad i ponašanje zaposlenika Ministarstva unutarnjih poslova Republike Hrvatske. Autor posebno ukazuje na potrebu zaštite zaposlenika od zlonamjernih neosnovanih podnesaka kojima ih se proziva za kršenje zakona i na potrebu jasnije i preciznije regulacije postupka provjere te prava zaposlenika tijekom i po okončanju tog postupka. Kao posebnu vrijednost u zakonodavstvu, ističe se uvođenje dvaju stupnjeva odlučivanja o pritužbama, pri čemu u drugom stupnju odluku donosi Povjerenstvo, koje čine jedan policijski službenik i dvoje predstavnika javnosti koje imenuje nadležni parlamentarni Odbor.

  15. Studija o pripravi silicijeva dioksida uporabom ostataka iz naftnih škriljevaca

    OpenAIRE

    Nie, L.; Wang, T.

    2015-01-01

    Uporabom naftnih (uljnih) škriljevaca nastaje obilje ostataka naftnog škriljevca, koji ne samo da mogu izravno uzrokovati ozbiljno onečišćenje okoliša, već i dovesti do gubitka resursa. U ovom radu provedena je usporedba metode izluživanja kiselinom i metode otapanja lužinom kako bi se dobili optimalni uvjeti za obradu i dobivanje bijele čađe, koji su određeni na sljedeći način: maseni udjel NaOH je 8 %, vrijeme otapanja u lužini je 5 h i temperatura reakcije 100 °C. Potom su analizirane kara...

  16. Definisanje ekvivalentnog torzionooscilatornog sistema / Determination of the equivalent torsional vibration system

    Directory of Open Access Journals (Sweden)

    Dragan R. Trifković

    2010-07-01

    Full Text Available U radu je prikazan postupak zamene elemenata kompleksnog torzionooscilatornog sistema brodske dizelmotorne propulzije uprošćenim ekvivalentnim elementima istih dinamičkih karakteristika. Izloženi postupak sadrži metode za određivanje ekvivalentnih dužina, krutosti i momenata inercije na osnovu jednakosti kinetičkih i potencijalnih energija realnih i ekvivalentnih elemenata sistema. Osim toga, analizirani su pobudni momenti koji izazivaju prinudne torzione oscilacije razmatranog sistema. / The procedure of replacing the elements of a complex torsional vibration system of ship diesel engine propulsion with simplified equivalent ones with the same dynamic characteristics is shown in this work. The given procedure comprises the methods for the determination of equivalent lengths, stifnesses and moments of inertia based on the equality between kinetic and potential energy of real and equivalent elements of the system. Additionally, the exciting moments which excite forced torsional vibrations of the considered system are analysed.

  17. Dijagnostičke metode za rano otkrivanje osteoporoze u stomatologiji

    OpenAIRE

    Knezović Zlatarić, Dubravka; Pandurić, Josip; Koršić, Mirko; Dodig, Damir

    2007-01-01

    Osteoporoza, široko rasprostanjena i učestala koštana bolest odmakle životne dobi, obilježena je gubitkom koštane mase i dotrajalošću mikroarhitekture koštanoga tkiva, uz posljedično slabljenje tvrde koštane strukture te povećanje rizika pojave prijeloma. U radu su navedeni sistemski i lokalni čimbenici odgovorni za gubitak koštanoga tkiva čeljusti. Najčešći sistemski čimbenici povezani s gubitkom koštane mase čeljusti, su osteoporoza, bubrežne bolesti, hormonski poremećaji, prehrana, ali i u...

  18. Highly Deformed Non-uniform Black Strings in Six Dimensions

    CERN Document Server

    Kalisch, Michael

    2015-01-01

    We construct numerically static non-uniform black string solutions in six dimensions by using pseudo-spectral methods. An appropriately designed adaptation of the methods in regard of the specific behaviour of the field quantities in the vicinity of our numerical boundaries provides us with extremely accurate results, that allows us to get solutions with an unprecedented deformation of the black string horizon. Consequently, we are able to investigate in detail a critical regime within a suitable parameter diagram. In particular, we observe a clearly pronounced maximum in the mass curve, which is in accordance with the results of Kleihaus, Kunz and Radu from 2006. Interestingly, by looking at extremely distorted black strings, we find two further turning points of the mass, resulting in a spiral curve in the black string's phase diagram.

  19. Primena koncepta marketinga za poboljšanje online nastupa Vojne akademije / Using marketing strategy to improve the online presentation of the Military Academy

    Directory of Open Access Journals (Sweden)

    Dragan S. Pamučar

    2009-01-01

    Full Text Available Internet, elektronsko poslovanje, cyber marketing, nove tehnologije - svakako su termini novog vremena, koje je neophodno primeniti i u poslovanje vojne organizacije. U radu je analiziran dosadašnji rejting i način rada web prezentacije Vojne akademije. Definisane su i ciljne grupe sajta Vojne akademije i predložena strategija promocije web adrese Vojne akademije. / Internet, e-business, cyber marketing and new technologies are some of the characteristics of modern times which should be applied in military organisation management as well. The rating and organization of the Military Academy web presentation have been analyzed. Target groups have been defined and a strategy to promote the Military Academy web address has been proposed.

  20. Određivanje buke radi sertifikacije mlaznih aviona / Procedures in the noise certification of jet aircraft

    Directory of Open Access Journals (Sweden)

    Gordana Jurin

    2005-01-01

    Full Text Available U radu su prikazane osnovne teorijske postavke i matematički modeli koji su značajni za obradu akustičkih i neakustičkih podataka u procesu određivanja buke mlaznih aviona prema međunarodnom standardu ICAO, Annex 16, za potrebe sertiflkacije. Proces obuhvata i postupak eliminacije efekata ambijentalnog šuma iz signala avionske buke. Kao primer, data je praktična primena navedenog postupka na rezultate merenja za avion G-2A. / This paper presents a basic theoretical scheme and a mathematical model that is used to calculate jet aircraft noise level for certification purposes in accordance with the international standard ICAO Annex 16. In this process acoustic and nonacoustic data are used. The process also includes the procedure for eliminating ambient noise effects out of the aircraft noise signal. This procedure was applied in the case of noise measurement results for the G-2Ajet aircraft.

  1. Strategija marketing-miksa u obezbeđivanju kadrova saobraćajne službe vojske / The marketing mix strategy within army transportation service personnel providing

    Directory of Open Access Journals (Sweden)

    Srđan Ljubojević

    2006-07-01

    Full Text Available Aktuelni reformski procesi u Vojsci Srbije prilika su za postavljanje novih principa, kada je u pitanju spoj marketinga i vojne organizacije. U ovom radu prikazan je mogući izgled instrumenata marketing-miksa u funkciji obezbeđivanja kadrovskih resursa saobraćajne službe Vojske Srbije, sa namerom da se definiše opšti izgled instrumenata u marketing-aktivnostima. / The presently relevant reform processes in the Military of Serbia are an opportunity for setting new principles when we are talking about marketing - military organization joint. In this work a possible look of marketing mix instruments is presented which purpose is to provide meaning resources of transportation service in the Military of Serbia, with intention to define a general look of the instruments in marketing activities.

  2. Urbani život i prepoznavanje društva

    OpenAIRE

    Pusić, Ljubinko

    2009-01-01

    Autor u radu polazi od činjenice kako danas nije moguće promišljati ni o jednom isječku svagdašnjice, a da se kao potka ne pojave značenja urbanog. Prepoznavanje tih značenja pretpostavlja kako je: (a) riječ o kvaziteorijskoj konstrukciji, (b) istraživanje svagdašnjice pokušaj demistifikacije znanstvenog pogleda na ono, odnosno onoga što ljudi »vide ali ne zamjećuju«, (c) uz pomoć svagdašnjice moguće prepoznati način života na određenom prostoru i (d) kontekstualna rav...

  3. Program ispitivanja i metodologija analize spektra vibracija brodske gasne turbine Proteus 52M/558 / The test programme and the methodology of analyzing the vibrations spectrum of a Proteus 52M/558 ship gas turbine

    Directory of Open Access Journals (Sweden)

    Predrag S. Dobratić

    2009-10-01

    Full Text Available The paper presents a programme for testing vibrations on a ship gas turbine, based on an analogy of testing and analysis of vibrations on aircraft and/or helicopter gas turbines. A particular attention is given to a choice of vibration parameters and to the analysis of the vibration spectrum as well as to the methods of estimation of criteria of vibration acceptability. The results of the measurement of the vibrations on a Proteus 52M/558 gas turbine installed on a RTOP-405 ship are shown. / U radu je prikazan program ispitivanja vibracija brodske gasne turbine, zasnovan na analogiji ispitivanja i analizi vibracija na avionskim i/ili helikopterskim gasnim turbinama. Posebna pažnja posvećena je izboru parametara vibracija, analizi spektra vibracija, kao i metodama procene kriterijuma prihvatljivosti vibracija. Na kraju rada prikazani su rezultati merenja vibracija na gasnoj turbini Proteus 52M/558 ugrađenoj na brodu RTOP-405.

  4. Izazovi nove hrane/Challenges of new food

    Directory of Open Access Journals (Sweden)

    Slavoljub S. Lekić

    2014-10-01

    Full Text Available U radu se ukazuje na vezu između razvoja nauke i tehnologije u 19. i 20. stoleću, pre svega biologije i hemije, i nastanka zelene revolucije sredinom 20. stoleća i genske revolucije s kraja 20. stoleća. Genska i zelena revolucija dovele su do dubokih promena proizvodnje hrane i poljoprivredu integrisale u ekonomiju zasnovanu na visokim tehnologijama. / The article draws attention to the development of science and technology in 19th and 20th century, biology and chemistry in particular, and its relation with the green revolution of the middle of 20th century and the gene revolution of the end of 20th century. These two revolutions have resulted in significant changes in food production and integrated agriculture into high technology-based economy.

  5. Toksičnost dentalnog amalgama I

    OpenAIRE

    Galić, Nada; Prskalo, Katica; Prpić-Mehičić, Goranka; Šutalo, Jozo; Anić, Ivica; Prester, Ljerka

    1997-01-01

    Tijekom svoje 150-godišnje uporabe dentalni je amalgam stalno napadan zbog nekih svojih svojstava, a ponajviše zbog moguće toksičnosti. Toksičnost se uglavnom pripisivala živi koja čini 50% amalgamske slitine. U ovome radu opisana je kratka povijest toksičnosti dentalnog amalgama, navedeni su osnovni sastojci amalgama, njihova pojedinačna toksičnost i moguća toksičnost amalgamske slitine. Opisani su i mogući načini otpuštanja pojedinih sastojaka dentalnog amalgama u obliku živinih para, čest...

  6. Analysis of performance and device parameters of CIGS PV modules deployed outdoors

    Energy Technology Data Exchange (ETDEWEB)

    Radue, C. [Physics Department, P.O. Box 77000, Nelson Mandela Metropolitan University, Port Elizabeth, 6031 (South Africa)], E-mail: chantelle.radue@nmmu.ac.za; Dyk, E.E. van; Macabebe, E.Q. [Physics Department, P.O. Box 77000, Nelson Mandela Metropolitan University, Port Elizabeth, 6031 (South Africa)

    2009-02-02

    Two 20 W copper indium gallium diselenide photovoltaic modules were subjected to a thorough indoor assessment procedure, followed by outdoor deployment at the Nelson Mandela Metropolitan University as part of an ongoing study. The initial indoor measurement of maximum power output (P{sub MAX}) of one of the modules was considerably higher than the manufacturer's rating (E.E. van Dyk, C. Radue and A.R. Gxasheka, Thin Solid Films 515 (2007) 6196). The modules were deployed on a dual-axis solar tracker and current-voltage characteristics were obtained weekly. In addition to the normal PV parameters of short-circuit current, open-circuit voltage, P{sub MAX}, fill factor and efficiency, shunt and series resistances were also monitored. The performances of the two modules are compared and analyzed and the results presented in this paper.

  7. Doplerovi brodski navigacioni brzinomjeri / Maritime navigational Doppler logs

    Directory of Open Access Journals (Sweden)

    Milovan Unković

    2006-01-01

    Full Text Available Doplerovi navigacioni brodski brzinomjeri rade na principu Doplerovog efekta. Doplerov predajni projektor emituje snop ultrazvučnih vibracija u vodi, a drugi (ili isti projektor prima odbijeni signal od dna ili od sloja vode. U ovom radu opisana je teorija Doplerovog efekta, primjena te teorije na brodskim brzinomjerima, konstrukcija i karakteristike savremenih Doplerovih brzinomjera. / The Doppler maritime navigational logs are based on measurement of the Doppler effect. A Doppler log transmitting transducer emits beam of sound vibration in the water, and a second (or the same transducer receives the echo from the sea bed or -water layer. In this article describes theory of Doppler effect, using this theory in maritime logs, construction and performance of modern Doppler logs.

  8. Simulacija rafala višecevnog bacača raketa / MLRS salvo simulation

    Directory of Open Access Journals (Sweden)

    Marko S. Holclajtner

    2010-04-01

    Full Text Available U radu je predstavljena procedura za efikasno simuliranje rafala višecevnog bacača raketa i uticaja rakete na ostale delove sistema. Analizirano je ponašanje rakete u odnosu na referentnu idealnu trajektoriju, koju generiše idealna raketa. Kvalitet rafalne vatre je rasturanje padnih tačaka na cilju što je mera preciznosti i tačnosti. U radu je razmatran samo uticaj preciznosti, tj. rasturanja raketa, pri čemu se smatra da je greška tačnosti zanemarljiva. Na taj način identifikuju se sopstveni (municijski uticaji na fenomen rasturanja trajektorija. Rasturanje na cilju upoređeno je sa rasturanjem na kraju aktivne faze u takozvanim estimatorskim koordinatama (detektorskoj ravni i biće utvrđena njihova korelacija. / This paper presents a procedure for an efficient simulation of MLRS barrage fire as well as of the effects of rocket parameters. The rocket behavior will be analyzed with reference to an ideal trajectory generated by an ideal rocket. The quality of MLRS fire is expressed through dispersion of impact points in the target area thus representing precision and accuracy. This work assumes absolutely correct accuracy and concentrates primarily on the effects of precision i. e. on the dispersion of rockets. Other types of effects on rocket dispersion, such as those of atmosphere, launching, etc. are neglected. The ammunition effects on the trajectory dispersion will be thus identified. The dispersion in the target area will be correlated with the dispersion of trajectory points at the end of the active (rocket motor burn out phase.

  9. Primena metoda ekspertskog ocenjivanja pri oceni profesionalnog rizika / Applying of expert method for professional risk rate

    Directory of Open Access Journals (Sweden)

    Zoran Novaković

    2007-07-01

    Full Text Available Osnovni cilj utvrđivanja ocene profesionalnog rizika je preventivno delovanje u funkciji bezbednosti i zaštite zdravlja zaposlenih, tj. preduzimanje opštih i posebnih mera zaštite na radu radi eliminisanja opasnosti ili štetnosti ili smanjivanja vremena ekspozicije zaposlenog određenim faktorima rizika u sredinama gde je ustanovljena njihova prisutnost. U mnogim slučajevima raspoloživi podaci o prethodnim štetnim događajima su nepotpuni ili nisu dovoljno statistički relevantni. Zbog toga je skup ovih podataka najčešće statistički nehomogen, pa su i rezultati statističke analize, a time i procenjeni rizici, nedovoljno tačni i nepouzdani. Radi toga se u radu predlaže i primenjuje ekspertski metod koji poništava taj nedostatak, a istovremeno omogućava otklanjanje uticaja koji se odnose na neodređenost i subjektivnost pojedinačnih ocena. / The main goal of professional risk rate determination is preventive action in order to secure and protect health of employees. It considers assumption of common and special working protection measures in order to eliminate any danger or damage or to reduce workers exposition time to some risk factors in their working environments. In many cases data on former noxious events are incomplete or statistically insufficiently relevant. So the set of these data is often statistically nonhomogeneous, so are the results of statistical analysis. Thereby rated risks are insufficiently accurate and unreliable. Because of all these things, in this paper is recommend and apply an expert method which annuls this shortage and simultaneously it removes influences that are the consequence of some rate in determination and subjectivity.

  10. Zaštita računarskih mreža / Protection of computer networks

    Directory of Open Access Journals (Sweden)

    Milojko Jevtović

    2005-09-01

    Full Text Available U radu su obrađene metode napada, oblici ugrožavanja i vrste pretnji kojima su izložene računarske mreže, kao i moguće metode i tehnička rešenja za zaštitu mreža. Analizirani su efekti pretnji kojima mogu biti izložene računarske mreže i informacije koje se preko njih prenose. Opisana su određena tehnička rešenja koja obezbeđuju potreban nivo zaštite računarskih mreža, kao i mere za zaštitu informacija koje se preko njih prenose. Navedeni su standardi koji se odnose na metode i procedure kriptozaštite informacija u računarskim mrežama. U radu je naveden primer zaštite jedne lokalne računarske mreže. / In this paper different methods of attacks, threats and different forms of dangers to the computer networks are described. The possible models and technical solutions for networks protection are also given. The effects of threats directed to the computer networks and their information are analyzed certain technical solutions that provide necessary protection level of the computer networks as well as measures for information protection are also described. The standards for methods and security procedure for the information in computer networks are enlisted. There is also an example of protecting one local data network (in this paper.

  11. Novel parvoviruses in reptiles and genome sequence of a lizard parvovirus shed light on Dependoparvovirus genus evolution.

    Science.gov (United States)

    Pénzes, Judit J; Pham, Hanh T; Benkö, Mária; Tijssen, Peter

    2015-09-01

    Here, we report the detection and partial genome characterization of two novel reptilian parvoviruses derived from a short-tailed pygmy chameleon (Rampholeon brevicaudatus) and a corn snake (Pantherophis guttatus) along with the complete genome analysis of the first lizard parvovirus, obtained from four bearded dragons (Pogona vitticeps). Both homology searches and phylogenetic tree reconstructions demonstrated that all are members of the genus Dependoparvovirus. Even though most dependoparvoviruses replicate efficiently only in co-infections with large DNA viruses, no such agents could be detected in one of the bearded dragon samples, hence the possibility of autonomous replication was explored. The alternative ORF encoding the full assembly activating protein (AAP), typical for the genus, could be obtained from reptilian parvoviruses for the first time, with a structure that appears to be more ancient than that of avian and mammalian parvoviruses. All three viruses were found to harbour short introns as previously observed for snake adeno-associated virus, shorter than that of any non-reptilian dependoparvovirus. According to the phylogenetic calculations based on full non-structural protein (Rep) and AAP sequences, the monophyletic cluster of reptilian parvoviruses seems to be the most basal out of all lineages of genus Dependoparvovirus. The suspected ability for autonomous replication, results of phylogenetic tree reconstruction, intron lengths and the structure of the AAP suggested that a single Squamata origin instead of the earlier assumed diapsid (common avian-reptilian) origin is more likely for the genus Dependoparvovirus of the family Parvoviridae.

  12. Evidence for the transmission of Salmonella from reptiles to children in Germany, July 2010 to October 2011.

    Science.gov (United States)

    Pees, M; Rabsch, W; Plenz, B; Fruth, A; Prager, R; Simon, S; Schmidt, V; Munch, S; Braun, Pg

    2013-11-14

    This study examines the Salmonella status in reptiles kept in households with children suffering from gastroenteritis due to an exotic Salmonella serovar, to obtain information on possible transmission paths. A number of affected households (n=79) were contacted, and almost half (34/79) comprised at least one reptile in the home. Of the households, 19 were further studied, whereby a total of 36 reptiles were investigated. Samples were taken from the reptiles including the oral cavity, the cloaca, the skin and, in the case of lizards, the stomach, and isolation of Salmonella strains was performed using repeated enrichment and typing. Where the Salmonella serovars of the infected child and the reptile were identical, typing was followed by pulsed-field gel electrophoresis (PFGE). Bearded dragons (Pogona vitticeps) constituted 19 of 36 examined reptiles. Altogether 319 Salmonella isolates were investigated and 24 different serovars identified in the reptiles. In 15 of 19 households, an identical serovar to the human case was confirmed in at least one reptile (including 16 of all 19 bearded dragons examined). The results demonstrate that reptiles and especially bearded dragons shed various Salmonella serovars including those isolated from infected children in the respective households. Hygiene protocols and parents' education are therefore highly necessary to reduce the risk of transmission. From a terminological point of view, we propose to call such infections 'Reptile-Exotic-Pet-Associated-Salmonellosis' (REPAS).

  13. Autocrine and paracrine Shh signaling are necessary for tooth morphogenesis, but not tooth replacement in snakes and lizards (Squamata).

    Science.gov (United States)

    Handrigan, Gregory R; Richman, Joy M

    2010-01-01

    Here we study the role of Shh signaling in tooth morphogenesis and successional tooth initiation in snakes and lizards (Squamata). By characterizing the expression of Shh pathway receptor Ptc1 in the developing dentitions of three species (Eublepharis macularius, Python regius, and Pogona vitticeps) and by performing gain- and loss-of-function experiments, we demonstrate that Shh signaling is active in the squamate tooth bud and is required for its normal morphogenesis. Shh apparently mediates tooth morphogenesis by separate paracrine- and autocrine-mediated functions. According to this model, paracrine Shh signaling induces cell proliferation in the cervical loop, outer enamel epithelium, and dental papilla. Autocrine signaling within the stellate reticulum instead appears to regulate cell survival. By treating squamate dental explants with Hh antagonist cyclopamine, we induced tooth phenotypes that closely resemble the morphological and differentiation defects of vestigial, first-generation teeth in the bearded dragon P. vitticeps. Our finding that these vestigial teeth are deficient in epithelial Shh signaling further corroborates that Shh is needed for the normal development of teeth in snakes and lizards. Finally, in this study, we definitively refute a role for Shh signaling in successional dental lamina formation and conclude that other pathways regulate tooth replacement in squamates.

  14. Prevalence of neutralising antibodies against adenoviruses in lizards and snakes.

    Science.gov (United States)

    Ball, Inna; Ofner, Sabine; Funk, Richard S; Griffin, Chris; Riedel, Ulf; Möhring, Jens; Marschang, Rachel E

    2014-10-01

    Adenoviruses (AdVs) are relatively common in lizards and snakes, and several genetically distinct AdVs have been isolated in cell culture. The aims of this study were to examine serological relationships among lizard and snake AdVs and to determine the frequency of AdV infections in these species. Isolates from a boa constrictor (Boa constrictor), a corn snake (Pantherophis gutattus) and a central bearded dragon (Pogona vitticeps), and two isolates from helodermatid lizards (Heloderma horridum and H. suspectum) were used in neutralisation tests for the detection of antibodies in plasma from 263 lizards from seven families (including 12 species) and from 141 snakes from four families (including 28 species) from the USA and Europe. Most lizard and snake samples had antibodies against a range of AdV isolates, indicating that AdV infection is common among these squamates. Neutralisation tests with polyclonal antibodies raised in rabbits demonstrated serological cross-reactivity between both helodermatid lizard isolates. However, squamate plasma showed different reactions to each of these lizard isolates in neutralisation tests.

  15. Ranavirus infections associated with skin lesions in lizards.

    Science.gov (United States)

    Stöhr, Anke C; Blahak, Silvia; Heckers, Kim O; Wiechert, Jutta; Behncke, Helge; Mathes, Karina; Günther, Pascale; Zwart, Peer; Ball, Inna; Rüschoff, Birgit; Marschang, Rachel E

    2013-09-27

    Ranaviral disease in amphibians has been studied intensely during the last decade, as associated mass-mortality events are considered to be a global threat to wild animal populations. Several studies have also included other susceptible ectothermic vertebrates (fish and reptiles), but only very few cases of ranavirus infections in lizards have been previously detected. In this study, we focused on clinically suspicious lizards and tested these animals for the presence of ranaviruses. Virological screening of samples from lizards with increased mortality and skin lesions over a course of four years led to the detection of ranaviral infections in seven different groups. Affected species were: brown anoles (Anolis sagrei), Asian glass lizards (Dopasia gracilis), green anoles (Anolis carolinensis), green iguanas (Iguana iguana), and a central bearded dragon (Pogona vitticeps). Purulent to ulcerative-necrotizing dermatitis and hyperkeratosis were diagnosed in pathological examinations. All animals tested positive for the presence of ranavirus by PCR and a part of the major capsid protein (MCP) gene of each virus was sequenced. Three different ranaviruses were isolated in cell culture. The analyzed portions of the MCP gene from each of the five different viruses detected were distinct from one another and were 98.4-100% identical to the corresponding portion of the frog virus 3 (FV3) genome. This is the first description of ranavirus infections in these five lizard species. The similarity in the pathological lesions observed in these different cases indicates that ranaviral infection may be an important differential diagnosis for skin lesions in lizards.

  16. Color Change for Thermoregulation versus Camouflage in Free-Ranging Lizards.

    Science.gov (United States)

    Smith, Kathleen R; Cadena, Viviana; Endler, John A; Kearney, Michael R; Porter, Warren P; Stuart-Fox, Devi

    2016-12-01

    Animal coloration has multiple functions including thermoregulation, camouflage, and social signaling, and the requirements of each function may sometimes conflict. Many terrestrial ectotherms accommodate the multiple functions of color through color change. However, the relative importance of these functions and how color-changing species accommodate them when they do conflict are poorly understood because we lack data on color change in the wild. Here, we show that the color of individual radio-tracked bearded dragon lizards, Pogona vitticeps, correlates strongly with background color and less strongly, but significantly, with temperature. We found no evidence that individuals simultaneously optimize camouflage and thermoregulation by choosing light backgrounds when hot or dark backgrounds when cold. In laboratory experiments, lizards showed both UV-visible (300-700 nm) and near-infrared (700-2,100 nm) reflectance changes in response to different background and temperature treatments, consistent with camouflage and thermoregulatory functions, respectively, but with no interaction between the two. Overall, our results suggest that wild bearded dragons change color to improve both thermoregulation and camouflage but predominantly adjust for camouflage, suggesting that compromising camouflage may entail a greater potential immediate survival cost.

  17. Diagnostic sensitivity of ultrasound, radiography and computed tomography for gender determination in four species of lizards.

    Science.gov (United States)

    Di Ianni, Francesco; Volta, Antonella; Pelizzone, Igor; Manfredi, Sabrina; Gnudi, Giacomo; Parmigiani, Enrico

    2015-01-01

    Gender determination is frequently requested by reptile breeders, especially for species with poor or absent sexual dimorphism. The aims of the current study were to describe techniques and diagnostic sensitivities of ultrasound, radiography, and computed tomography for gender determination (identification of hemipenes) in four species of lizards. Nineteen lizards of known sex, belonging to four different species (Pogona vitticeps, Uromastyx aegyptia, Tiliqua scincoides, Gerrhosaurus major) were prospectively enrolled. With informed owner consent, ultrasound, noncontrast CT, contrast radiography, and contrast CT (with contrast medium administered into the cloaca) were performed in conscious animals. Imaging studies were reviewed by three different operators, each unaware of the gender of the animals and of the results of the other techniques. The lizard was classified as a male when hemipenes were identified. Nineteen lizards were included in the study, 10 females and nine males. The hemipenes were seen on ultrasound in only two male lizards, and appeared as oval hypoechoic structures. Radiographically, hemipenes filled with contrast medium appeared as spindle-shaped opacities. Noncontrast CT identified hemipenes in only two lizards, and these appeared as spindle-shaped kinked structures with hyperattenuating content consistent with smegma. Hemipenes were correctly identified in all nine males using contrast CT (accuracy of 100%). Accuracy of contrast radiography was excellent (94.7%). Accuracy of ultrasound and of noncontrast CT was poor (64.3% and 63.1%, respectively). Findings from the current study supported the use of contrast CT or contrast radiography for gender determination in lizards.

  18. Occurrence of an invertebrate iridescent-like virus (Iridoviridae) in reptiles.

    Science.gov (United States)

    Just, F; Essbauer, S; Ahne, W; Blahak, S

    2001-11-01

    Viral isolates were obtained in 1998, 1999 and 2000 from the lung, liver and intestine of two bearded dragons (Pogona vitticeps) and a chameleon (Chamaeleo quadricornis) and from the skin of a frill-necked lizard (Chamydosaurus kingii) by using viper heart cells (VH2) at 28 degrees C. Electron microscopic examination of infected VH2 cells revealed the assembly of icosahedral iridovirus-like particles measuring 139 nm (side to side) and 151 nm (apex to apex). Negatively stained virus particles had dimensions of 149 nm (side to side) and 170 nm (apex to apex). Polymerase chain reaction (PCR) amplification of purified viral DNA with primers corresponding to the partial gene encoding the major capsid protein (MCP) of Frog viris-3 (FV-3), the type species of the genus Ranavirus, was unsuccessful. In contrast, primers corresponding to the partial MCP gene of Chilo iridescent virus (CIV; genus Iridovirus) amplified 500-bp products with 97% identity to the nucleotide sequence of CIV and 100% identity to the nucleotide sequence of Gryllus bimaculatus iridescent virus (GbIV), an invertebrate iridescent virus. Virus protein profiles analysed by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) and restriction fragment length profiles of purified viral DNA treated with the endonucleases EcoRI, HindIII and HpaII were identical to those of GbIV.

  19. The behavioural consequences of sex reversal in dragons

    Science.gov (United States)

    Li, Hong; Holleley, Clare E.; Elphick, Melanie; Georges, Arthur

    2016-01-01

    Sex differences in morphology, physiology, and behaviour are caused by sex-linked genes, as well as by circulating sex-steroid levels. Thus, a shift from genotypic to environmental sex determination may create an organism that exhibits a mixture of male-like and female-like traits. We studied a lizard species (Central Bearded Dragon, Pogona vitticeps), in which the high-temperature incubation of eggs transforms genetically male individuals into functional females. Although they are reproductively female, sex-reversed dragons (individuals with ZZ genotype reversed to female phenotype) resemble genetic males rather than females in morphology (relative tail length), general behaviour (boldness and activity level), and thermoregulatory tactics. Indeed, sex-reversed ‘females’ are more male-like in some behavioural traits than are genetic males. This novel phenotype may impose strong selection on the frequency of sex reversal within natural populations, facilitating rapid shifts in sex-determining systems. A single period of high incubation temperatures (generating thermally induced sex reversal) can produce functionally female individuals with male-like (or novel) traits that enhance individual fitness, allowing the new temperature-dependent sex-determining system to rapidly replace the previous genetically based one.

  20. A simple non-invasive protocol to establish primary cell lines from tail and toe explants for cytogenetic studies in Australian dragon lizards (Squamata: Agamidae)

    Science.gov (United States)

    O’Meally, Denis; Quinn, Alexander E.; Sarre, Stephen D.; Georges, Arthur; Marshall Graves, Jennifer A.

    2009-01-01

    Primary cell lines were established from cultures of tail and toe clips of five species of Australian dragon lizards: Tympanocryptis pinguicolla, Tympanocryptis sp., Ctenophorus fordi, Amphibolurus norrisi and Pogona vitticeps. The start of exponential cell growth ranged from 1 to 5 weeks. Cultures from all specimens had fibroblastic morphology. Cell lines were propagated continuously up to ten passages, cryopreserved and recovered successfully. We found no reduction in cell viability after short term (<6 months) storage at −80 °C. Mitotic metaphase chromosomes were harvested from these cell lines and used in differential staining, banding and fluorescent in situ hybridisation. Cell lines maintained normal diploidy in all species. This study reports a simple non-invasive method for establishing primary cell lines from Australian dragon lizards without sacrifice. The method is likely to be applicable to a range of species. Such cell lines provide a virtually unlimited source of material for cytogenetic, evolutionary and genomic studies. PMID:19199067

  1. Colour change on different body regions provides thermal and signalling advantages in bearded dragon lizards

    Science.gov (United States)

    Cadena, Viviana; Porter, Warren P.; Kearney, Michael R.

    2016-01-01

    Many terrestrial ectotherms are capable of rapid colour change, yet it is unclear how these animals accommodate the multiple functions of colour, particularly camouflage, communication and thermoregulation, especially when functions require very different colours. Thermal benefits of colour change depend on an animal's absorptance of solar energy in both UV–visible (300–700 nm) and near-infrared (NIR; 700–2600 nm) wavelengths, yet colour research has focused almost exclusively on the former. Here, we show that wild-caught bearded dragon lizards (Pogona vitticeps) exhibit substantial UV–visible and NIR skin reflectance change in response to temperature for dorsal but not ventral (throat and upper chest) body regions. By contrast, lizards showed the greatest temperature-independent colour change on the beard and upper chest during social interactions and as a result of circadian colour change. Biophysical simulations of heat transfer predicted that the maximum temperature-dependent change in dorsal reflectivity could reduce the time taken to reach active body temperature by an average of 22 min per active day, saving 85 h of basking time throughout the activity season. Our results confirm that colour change may serve a thermoregulatory function, and competing thermoregulation and signalling requirements may be met by partitioning colour change to different body regions in different circumstances.

  2. Ranavirus infections associated with skin lesions in lizards

    Science.gov (United States)

    2013-01-01

    Ranaviral disease in amphibians has been studied intensely during the last decade, as associated mass-mortality events are considered to be a global threat to wild animal populations. Several studies have also included other susceptible ectothermic vertebrates (fish and reptiles), but only very few cases of ranavirus infections in lizards have been previously detected. In this study, we focused on clinically suspicious lizards and tested these animals for the presence of ranaviruses. Virological screening of samples from lizards with increased mortality and skin lesions over a course of four years led to the detection of ranaviral infections in seven different groups. Affected species were: brown anoles (Anolis sagrei), Asian glass lizards (Dopasia gracilis), green anoles (Anolis carolinensis), green iguanas (Iguana iguana), and a central bearded dragon (Pogona vitticeps). Purulent to ulcerative-necrotizing dermatitis and hyperkeratosis were diagnosed in pathological examinations. All animals tested positive for the presence of ranavirus by PCR and a part of the major capsid protein (MCP) gene of each virus was sequenced. Three different ranaviruses were isolated in cell culture. The analyzed portions of the MCP gene from each of the five different viruses detected were distinct from one another and were 98.4-100% identical to the corresponding portion of the frog virus 3 (FV3) genome. This is the first description of ranavirus infections in these five lizard species. The similarity in the pathological lesions observed in these different cases indicates that ranaviral infection may be an important differential diagnosis for skin lesions in lizards. PMID:24073785

  3. Shapes of Differential Pulse Voltammograms and Level of Metallothionein at Different Animal Species

    Science.gov (United States)

    Adam, Vojtech; Beklova, Miroslava; Pikula, Jiri; Hubalek, Jaromir; Trnkova, Libuse; Kizek, Rene

    2007-01-01

    Metallothioneins play a key role in maintaining homeostasis of essential metals and in protecting of cells against metal toxicity as well as oxidative damaging. Excepting humans, blood levels of metallothionein have not yet been reported from any animal species. Blood plasma samples of 9 animal species were analysed by the adsorptive transfer stripping technique to obtain species specific voltammograms. Quite distinct records were obtained from the Takin (Budorcas taxicolor), while other interesting records were observed in samples from the European Bison (Bison bonasus bonasus) and the Red-eared Slider (Trachemys scripta elegans). To quantify metallothionein the catalytic peak Cat2 was used, well developed in the Domestic Fowl (Gallus gallus f. domestica) and showing a very low signal in the Red Deer (Cervus elaphus). The highest levels of metallothionein reaching over 20 µM were found in the Domestic Fowl. High levels of MT were also found in the Bearded Dragon (Pogona vitticeps) and the Grey Wolf (Canis lupus lupus). The lowest values of about 1-3 µM were determined in the Red-eared Slider, Takin and Red Deer. Employing a simple electrochemical detection it was possible to examine variation in blood metallothionein in different species of vertebrates. PMID:28903235

  4. Shapes of Differential Pulse Voltammograms and Level of Metallothionein at Different Animal Species

    Directory of Open Access Journals (Sweden)

    Rene Kizek

    2007-10-01

    Full Text Available Metallothioneins play a key role in maintaining homeostasis of essential metalsand in protecting of cells against metal toxicity as well as oxidative damaging. Exceptinghumans, blood levels of metallothionein have not yet been reported from any animalspecies. Blood plasma samples of 9 animal species were analysed by the adsorptive transferstripping technique to obtain species specific voltammograms. Quite distinct records wereobtained from the Takin (Budorcas taxicolor, while other interesting records were observedin samples from the European Bison (Bison bonasus bonasus and the Red-eared Slider(Trachemys scripta elegans. To quantify metallothionein the catalytic peak Cat2 was used,well developed in the Domestic Fowl (Gallus gallus f. domestica and showing a very lowsignal in the Red Deer (Cervus elaphus. The highest levels of metallothionein reachingover 20 μM were found in the Domestic Fowl. High levels of MT were also found in theBearded Dragon (Pogona vitticeps and the Grey Wolf (Canis lupus lupus. The lowestvalues of about 1-3 μM were determined in the Red-eared Slider, Takin and Red Deer. Employing a simple electrochemical detection it was possible to examine variation in blood metallothionein in different species of vertebrates.

  5. High-Performance Liquid Chromatography Determination of Meloxicam and Piroxicam with Ultraviolet Detection

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    Sherry Cox

    2014-01-01

    Full Text Available A simple accurate and sensitive high-performance liquid chromatographic method for the determination of meloxicam and piroxicam concentrations in small volume plasma samples has been developed. Following a liquid extraction using chloroform, samples were separated by reversed-phase high-performance liquid chromatography on an XBridge C18 column (4.6 × 250 mm and quantified using ultraviolet detection at 360 nm. The mobile phase was a mixture of water with glacial acetic acid (pH 3.0 and acetonitrile (50 : 50, with a flow rate of 1.0 mL/min. The standard curve ranged from 5 to 10,000 ng/mL for meloxicam in bearded dragon (Pogona vitticeps plasma and piroxicam in crane (Grus rubicunda plasma. Intra- and interassay variability for meloxicam and piroxicam were less than 10% and the average recovery was greater than 90% for both drugs. This method was developed in bearded dragon and crane plasma and should be applicable to any species, making it useful for those investigators dealing with small sample volumes, particularly when conducting pharmacokinetics studies which require multiple sampling from the same animal.

  6. Primjena spektrometrijskih metoda u analizi metalurških uzoraka

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    Anita Štrkalj

    2016-07-01

    Full Text Available Instrumentalne metode analize nezamjenjive su u znanstvenim istraživanjima, a sve više i u praksi gdje se zahtijeva što brže dobivanje rezultata, kao i što veća točnost. U metalurškoj praksi već se dulji niz godina primjenjuju spektrometrijske metode analize i to najčešće optička emisijska spektrometrija s izravnim očitanjem. Međutim koncentracija pojedinih legirnih elemenata u suvremenim metalnim materijalima vrlo je niska, često niža od granice detekcije optičkih emisijskih spektrometara s izravnim očitanjem. U ovom radu određivana je koncentracija bora u nodularnom lijevu primjenom optičke emisijske spektrometrije s izravnim očitanjem (OES, optičke emisijske spektrometrije s induktivno spregnutom plazmom (ICP-OES te atomske apsorpcijske spektrometrije s grafitnom tehnikom (AAS-GF. Dobiveni rezultati pokazali su da se optička emisijska spektrometrija s izravnim očitanjem i optička emisijska spektrometrija s induktivno spregnutom plazmom mogu primijeniti za određivanje bora u ispitivanim uzorcima (tablica 1. Ako se zahtijeva vrlo točna analiza, a posebno ako se radi o vrlo niskim koncentracijama, optička emisijska spektrometrija s induktivno spregnutom plazmom pogodnija je metoda, uz uvjet da su uzorci pravilno pripremljeni. Atomska apsorpcijska spektrometrija s grafitnom tehnikom nije pogodna za određivanje bora u uzorcima ovog tipa. Tijekom provođenja analize dodatna pažnja usmjerena je na eliminaciju negativnog utjecaja grafitne kivete na rezultat analize. Osim toga, u radu je praćen utjecaj načina otapanja uzoraka na rezultate analize bora spomenutim metodama. Rezultati su pokazali da pažljiva priprema uzoraka u zatvorenom sustavu pridonosi točnijem rezultatu analize.

  7. Mogućnosti turističke međuodredišne suradnje na primjeru Opatije i Portoroža: menadžerska perspektiva

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    Ksenija Vodeb

    2016-12-01

    Full Text Available Snažna konkurencija među turističkim odredištima potiče interes za međuodredišnu suradnju kao alat za razvoj inovativnih zajedničkih proizvoda različitih odredišta. U studiji predstavljenoj u ovome radu istraženi su motivi, prepreke i očekivani ishodi međuodredišne suradnje u dvama mediteranskim turističkim odredištima – Opatiji i Portorožu – koja su prepoznata kao međusobno zamjenjiva turistička odredišta. Intervjuirano je dvadeset predstavnika menadžerskog sektora zaposlenih u turističkim organizacijama ili organizacijama povezanima s turizmom u Opatiji i Portorožu, s ciljem ispitivanja njihove percepcije međuodredišne suradnje. Istraživanje je pokazalo kako je međuodredišna suradnja prepoznata kao važan alat za povezivanje turističkih proizvoda razvijenih na razini pojedinačnog odredišta s ciljem razvoja zajedničkih proizvoda različitih odredišta. Osim toga, istraživanjem su osvijetljeni motivi za međuodredišnu suradnju na temelju komplementarnosti odredišta, prepreke za međuodredišnu suradnju na temelju njihovih sličnosti te razlike i očekivani ishodi međuodredišne suradnje kojom se povezuju proizvodi koji su razvijeni zasebno, na razini pojedinačnog odredišta. Sudionici su izrazili pozitivan stav o inovativnoj turističkoj ponudi i aranžmanima za nova i udaljena tržišta s ciljem nadilaženja sezonalnosti i poboljšanja kvalitete proizvoda odredišta. Osim toga, rezultati su pokazali kako se međuodredišna suradnja može uspješno primijeniti u međusobno zamjenjivim odredištima u kojima postoji slaba unutarodredišna suradnja. U radu se razmatraju i praktične implikacije rezultata te daljnja istraživanja.

  8. SHELLFISH OF THE RIVER KRKA MOUTH - FISHING AND FARMING

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    Drago Marguš

    2004-03-01

    Full Text Available U radu je iznesen kratki prikaz zemljopisnog položaja rijeke Krke, osobitosti njezina ušća, to izlova i istraživanja prirodnih populacija školjkaša. Poseban je naglasak stavljen na prikaz mogućnosti kontroliranog uzgoja školjkaša u bočatim vodama ušća. U ušću rijeke Krke utvrđeno je 56 svojti iz 27 porodica. Najrasprostranjenije su ove svojte: dagnja (Mytilus galloprovincialis, kamenica (Ostrea edulis, a česte su: jestiva srčanka (Cerastoderma glaucum, prnjavica (Venus verrucosa, kućica (Tapes decussatus, kunjka (Arca noae, mala kapica (Chlamys varia i jakovska kapica (Pecten jacobaeus. Izlov prirodnih populacija školjkaša za prehranu tradicionalna je djelatnost i procjenjuje se na 100 tona u godini. Istraživanja mogućnosti kontroliranog uzgoja dagnje, kamenice, male kapice i jakovske kapice rezultirala su razvojem tehnologija konroliranog uzgoja dagnje i kamenice 1983., a jakovske kapice i male kapice godine 1989. Danas je proizvodnja organizirana na 25 lokaliteta, ukupne površine 87.142 m2, s mogućnošću proizvodnje oko 1.500 tona dagnji i deset tisuća kamenica, a mogla bi se povećati iznad 10.000 tona.

  9. Softversko rešenje za izradu rasporeda časova u visokoškolskim ustanovama / Software solution for planning timetables in the high educational institutions

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    Dobrivoje Vulićević

    2005-11-01

    Full Text Available Izrada rasporeda časova u visokoškolskim ustanovama vrlo je složen i obiman proces. U radu je predstavljen informacioni sistem za automatizaciju planiranja rasporeda časova. Softver omogućava unos i čuvanje svih relevantnih podataka o predmetima (nastavnim planovima i programima, nastavnicima (pripadajućim katedrama, specijalnostima, nastavnim grupama, brojnim stanjem grupa, prostorijama (učionice, laboratorije i brzu izradu zahtevanih izveštaja rasporeda časova (klasičan, po danima, po predmetima, itd.. Softversko rešenje obuhvata bazu podataka projektovanu na platformi Microsoft SQL Server 2000 i korisnički interfejs projektovan alatom Microsoft Access 2000. / Planning timetables in high educational institutions is very complex and tiresome process. This paper presents information system f or automatization of planning timetables. Software provides input and saving of all relevant data concerning subjects, teachers, specialties, student groups, facilities (classrooms, laboratories and quick presentation of different report types about timetables. The software solution involves database designed on Microsoft SQL Server 2000 platform and user interface coded using Microsoft Access 2000.

  10. Softverski model estimatora radijalne brzine ciljeva / Software model of a radial velocity estimator

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    Dejan S. Ivković

    2010-04-01

    Full Text Available U radu je softverski modelovan novi blok u delu za obradu signala softverskog radarskog prijemnika, koji je nazvan estimator radijalne brzine. Detaljno je opisan način procene Doplerove frekvencije na osnovu MUSIC algoritma i ukratko prikazan način rada pri merenju. Svi parametri pri merenju klatera i detekcije simuliranih i realnih ciljeva dati su tabelarno, a rezultati grafički. Na osnovu analize prikazanih rezultata može se zaključiti da se pomoću projektovanog estimatora radijalne brzine može precizno proceniti Doplerov pomak u reflektovanom signalu od pokretnog cilja, a samim tim može se precizno odrediti njegova brzina. / In all analyses the MUSIC method has given better results than the FFT method. The MUSIC method proved to be better at estimation precision as well as at resolving two adjacent Doppler frequencies. On the basis of the obtained results, the designed estimator of radial velocity can be said to estimate Doppler frequency in the reflected signal from a moving target precisely, and, consequently, the target velocity. It is thus possible to improve the performances of the current radar as far as a precise estimation of velocity of detected moving targets is concerned.

  11. The Future of Cartography --- Budućnost kartografije

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    Miljenko Lapaine

    2002-09-01

    Full Text Available The most important changes in cartography are associated with the development of computer technology, and regarding the function and usage of maps, the accent has been given to cartographic visualisation. Animation, multimedia presentation, Internet, WWW, market economy and politics have remarkably influenced cartography. The paper emphasises the need for closer collaboration of experts in informatics, geodesists, geographers, spatial planners and others with cartographers. The future of cartography is associated with map production, GIS, visualisation of spatial databases, and the production of detailed three-dimensional landscape presentations.Najvažnije promjene u kartografiji vezane su uz razvoj računalne tehnologije i geoinformacijskih sustava (GIS-a, a glede funkcije i upotrebe karata naglasak je na kartografskoj vizualizaciji. Na kartografiju također znatno utječu animacija, multimedijski prikazi, Internet, WWW, tržišno gospodarstvo i politika. Kartografija se mijenja od ponudom vođene do zahtjevom vođene kartografije. U radu je posebno istaknuta potreba uže suradnje informatičara, geodeta, geografa, prostornih planera i drugih s kartografima. Budućnost kartografije nije samo u izradi karata, već i u GIS-ovima, vizualizaciji prostornih baza podataka i izradi detaljnih trodimenzionalnih prikaza krajolika.

  12. Analiza rezultata detekcije pokreta na slici / Performance evaluation of change detection

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    Boban Bondžulić

    2007-01-01

    Full Text Available U radu je izvršeno poređenje pet metoda za određivanje praga detekcije pokreta na slici scene. Metodi su testirani na sintetičkim i realnim slikama a rezultati detekcije pokreta izraženi su kvantitativno ili su dati vizuelno. Kvantitativna analiza izvršena je na nivou piksela, a zasnovana je na procentu ispravno klasifikovanih piksela, Jaccardovom i Yuleovom koeficijentu. Kroz analizu sprovedenu u četiri eksperimenta zaključeno je da su najbolji rezultati detekcije postignuti ukoliko se koristi Kapurov metod određivanja praga. / This paper studies five different methods proposed for change detection thresholding. Methods were tested on synthetic and real pictures and results are quantitatively and qualitatively presented. Quantitative analysis is performed at pixel level and the following measures were used: the percentage of correct classification, the Jaccard coefficient and the Yule coefficient. We test the performance of thesholding methods in four experiments and Kapur was the best performing method both quantitatively and qualitatively.

  13. Ocena funkcija saobraćajne podrške primenom metode procesnih funkcija / Evaluation of the traffic support functions using the processing function method

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    Goran Tadić

    2005-05-01

    Full Text Available U naučnoj organizaciji rada razvijeno je više metoda za ocenu postojećeg organizacionog nivoa. Organizovanost se može analizirati na različitim nivoima, kao što su: poslovne funkcije, organizacijske jedinice, područja rada u okviru pojedinih funkcija ili organizacijskih jedinica, kao i elemenata poslovanja. Analitički postupak, koji daje metoda procesnih funkcija, omogućuje kvantitativno ocenjivanje organizacionog nivoa funkcija i, polazeći od toga, preciziranje i programiranje mera za dalje organizacijsko delovanje. U radu je prikazana primena metode procesnih funkcija u ocenjivanju funkcija saobraćajne podrške korpusa kopnene vojske. / To appraise the existing organizational solutions -within the scientific organization of work, there are several methods. Organization could be analyzed at different levels such as: functionality, organizational units, -working areas included in some functions or organizational units and also into -work elements. Analytical order, given by the method of processing function, permits us to evaluate the level of organizational functions and starting from this point, precising and programming orders for further organizational -work could be done. In this paper, the methods of processing functions in evaluation of the functions of traffic support for army corps could be read.

  14. Modifikacija konvencionalnih radara na bazi koncepta softverskog radara / Conventional radars modification on the software radar concept basis

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    Dejan Ivković

    2007-04-01

    Full Text Available U radu su projektovani softverski modeli pojedinih funkcionalnih blokova radara, čime se stvorila pogodna osnova za poboljšanje performansi postojećih konvencionalnih radara. Primenom koncepta softverskog radara mogu se unaprediti karakteristike i povećati fleksibilnost konvencionalnih radara kao i implementirati potpuno nove funkcije koje znatno unapređuju njegove performanse. Svi softverski modeli projektovani su u programskom paketu MATLAB. Takođe, opisana je struktura i karakteristike konvencionalnog radara ŽIRAFA, koji je softverski modelovan. Pored toga, opisan je način softverske realizacije memorije RANGE BIN, Doplerovog filtera i detaljno opisan matematički model procesora CFAR. / Software models of some functional radar units are projected in this paper and proper platform for performance improving of existent conventional radars is created. Feature improving and flexibility increasing of conventional radars can be upgraded with application of software radar concept and totally new functions can be implemented which also upgraded its performances. All software models are projected in MATLAB program. Also structure and performances of the conventional radar GIRAFFE, which is modeled by software are described. Additionally, way of the RANGE BIN memory and Doppler filter software realization are described. CFAR mathematical model is presented detailed.

  15. Kvantifikacija osnovnih kriterijuma logistike / Quantification of the basic logistics criteria

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    Miladin Nikolić

    2004-01-01

    Full Text Available U radu su analizirani, definisani i kvantifikovani efektivnost i efikasnost, kao osnovni operativni kriterijumi, i troškovi, kao ekonomski kriterijum, koji služe za ocenjivanje funkcionisanja sistema uopšte i posebno sistema logistike, na osnovu kojih se može definisati niz drugih kriterijuma. Analizirani su i parametri koji utiču na ove kriterijume, kao i njihov matematički model, prilagođen za praktičnu primenu. Ukazano je na mogućnosti i ograničenja u primeni ovih kriterijuma kod organizacionih, tehničkih i bioloških sistema, kao i na mogućnosti optimizacije u izgradnji i funkcionisanju pojedinih sistema. / Effectiveness and efficiency, as basic operational criteria, and costs, as basic economic criteria, are analysed, defined and quantified. These criteria are used for assessing any system functioning, logistics system in particular, as well as for defining other criteria. The parameters influencing these criteria are analysed as well as their mathematical model, adapted for practical implementation. Possibilities and limitations while applying these criteria in organizational, technical and biological systems have been pointed out. Possible optimizations in particular systems design and functioning have been stressed as well.

  16. Razmjena poštanskih pošiljaka Jugoslavije sa svijetom u 1979-1988.

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    Slavko Jaram

    2012-10-01

    Full Text Available U ovom radu je analizirana i ocijenjena međunarodna razmjena poštanskih pošiljaka Jugoslavijesa svijetom u razdoblju 1979-1988.Zaključuje se o snazi, smjeru i značajkama nastalih promjena u dinamici i strukturi, posebnoza svaku skupinu usluga (pismovne i paketske. Pismovne i paketske usluge pokazuju stalno smanjenje u oba smjera (izvoz i uvoz začitavo razdoblje. Analitičke slike geografskedistribucije usluga pokazuju dominantnu uloguzemalja Evrope, posebno SR Njemačke.Zaključuje se da je ovakav pad međunarodnoga poštanskog prometa, uzrokovan izrazitom razvojnom tendencijom supstitucija među pojedinim vrstama usluga u uvjetima širenja. suvremene telekomunikacijske mr:eže, iako se ne bi smjeli zanemariti ni drugi uzroci, posebno u paketskih pošiljaka, koji su proizlazili iz opće ekonomske situacije zemlje u osamdesetim godinama ovog stoljeća.U budućnosti valja očekivati dugoročniju stagnaciju međunarodne razmjene poštanskih usluga, a u nekih usluga i nastavak opadanja.

  17. Prvi optički teodoliti : First optical theodolites

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    Nedim Tuno

    2011-12-01

    Full Text Available U radu je dat pregled prvih optičkih teodolita, koji su označili veliku prekretnicu u razvoju i primjeni geodetskih instrumenata. Njihova pojava veže se za ime čuvenog konstruktora Heinricha Wilda i imala je nemjerljivo pozitivan uticaj na cjelokupnu industriju geodetskih instrumenata, koji se osjeća čak i danas. Svrha članka nije komercijalna u smislu reklamiranja pojedinih tehničkih rješenja iz tvornice Wild (Leica, već pokušaj da se prikaže mjerna tehnologija koja je dominirala u prethodnom stoljeću, kroz prizmu legendarnog teodolita T2. : The article gives an overview of the first optical theodolites, which marked a major milestone in the development and use of surveying instruments. Their appearance is connected to the name of the famous constructor Heinrich Wild and had a immeasurably positive impact on the entire industry of surveying instruments, that is still felt today. The purpose of the article is not commercial in terms of advertising of certain technical solutions of the manufacturer Wild (Leica, but an attempt to show the measurement technology that has dominated the previous century, through the lens of legendary T2 theodolite.

  18. OBJECTIVES AND FUNCTIONS OF FINANCIAL STATEMENTS UNDER ACCOUNTING INFORMATION SYSTEM AT TRADE ENTITIES

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    CARAIMAN ADRIAN-COSMIN

    2015-12-01

    Full Text Available As Radu said (2009, pag. 91 [6] logical approach developed by accounting, presentation of an exact image of the heritage, the financial situation and financial results, based on a rational thought, a gradual knowledge domain investigated, concepts, tools and processes that allow a better understanding of the essence of economic phenomena and processes. Theoretical framework brings together a number of concepts that are considered fundamental to regulatory or accounting systems applied at the level of the entity to have clearly specified the coordinates of the base and are able to achieve cohesion between the objective of financial statements as true and fair view, financial information and policy characteristics and estimation techniques as a form of expression towards the recognition and presentation of economic reality. The author considers, in the context of the defined system applied within the accounting entities in general, that principles, presents not only a crucial premise, as well as needed necessity in order to show an exact image of the performance and financial position of the entity.

  19. ASPECTE PRIVIND CIRCULAŢIA TURISTICĂ RELIGIOASĂ. STUDIU DE CAZ: MĂNĂSTIREA NUCET, JUDEŢUL DÂMBOVIŢA

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    Liviu Mușat

    2016-06-01

    Full Text Available On religious tourist movement. Case study on Nucet Monastery, Dâmboviţa County. One of the most important religious pilgrimages, with a remarkable dynamics from year to year, is the one that takes place at Nucet Monastery, in Dâmboviţa County. More precisely, the pilgrimage to Crucea de Leac (the Healing Cross, located in close proximity to the monastery, on the Life-giving Spring. The monastery dates back to the early sixteenth century and its foundation is attributed to boyar Gherghina Pârcălab, one of Prince Radu the Handsome’s uncles. Throughout time, it has undergone many transformations. In 1940, it was abandoned and it was re-established as monastery in 1994. The study aimed to highlight the profile of the high number of pilgrims attending this event - reaching several thousands and increasing every year - and to issue some recommendations on how to increase its attractiveness and economic impact. In this regard, I prepared a questionnaire for 119 subjects who participated in the pilgrimage on the Life-giving Spring, celebrated on the 6th of May 2016. The results of this survey, the conclusions I have drawn and the recommendations I have issued are the subject of this material.

  20. Prilog analizi procesa sagorevanja dvobaznih raketnih goriva / Contribution to the analysis of burning of double base propellants

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    Panto Maslak

    2003-01-01

    Full Text Available Istraživanja opisana u ovom radu obuhvatila su proučavanje katalitičke aktivnosti balističkih modifikatora i proces sagorevanja dvobaznih raketnih goriva. Sagorevanje čvrstih raketnih goriva jedan je od najsloženijih vidova sagorevanja. Svako sagorevanje predstavlja se hemijskim reakcijama pa bi hemijska kinetika trebalo da ima glavnu ulogu u teoriji sagorevanja. Međutim kod raketnih motora sagorevanje je često vrlo složeno. Zakonitosti hemijske kinetike tada su u drugom planu, a primarne su zakonitosti toplotne provodljivosti i gasodinamike. / The investigation included studies of catalytic activities of ballistic modificators and the process of burning of double base propellants. Burning of solid rocket propellants in one of the most complex types of burning. As it is known, any kind of burning is presented by chemical reactions and therefore chemical kinetics should play the basic role in the theory of burning. But, in rocket motors, burning is often complex and its character is change enable. The laws of chemical kinetics, therefore yield before the laws of thermal conduction and gas-dynamics.

  1. IRMES 2006 – ISTRAŽIVANJE I RAZVOJ MAŠINSKIH ELEMENATA I SISTEMA – prikaz naučno-stručnog skupa

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    Vlado P. Đurković

    2007-04-01

    Full Text Available U organizaciji asocijacije za dizajn, elemente i konstrukcije, pod nazivom ADEKO 21. i 22. septembra na Mrakovici u Republici Srpskoj održano je međunarodno savetovanje IRMES 2006. Izvršni organizator bio je Mašinski fakultet iz Banje Luke, a pokrovitelj Ministarstvo nauke i tehnologije Republike Srpske. Pre održavanja samog skupa, kako je to već ustaljena praksa, štampan je zbornik radova na 428 stranica, čiji je redaktor dr Milosav Đurđević, docent na Mašinskom fakultetu Banja Luka, a predsednik Programskog odbora bio je dr Vojislav Miltenović, profesor na Mašinskom fakultetu u Nišu. U predgovoru zbornika konstatovano je da je u poslednjoj deceniji XX veka razvoj proizvodnog mašinstva bio usporen, a ponegde čak i zaustavljen. Ovakav tok razvoja posebno je prisutan u mašinogradnji i metalskoj industriji koje bitno utiču na intenzitet razvoja drugih privrednih grana, kao i obrazovanje stručnjaka svih profila u području proizvodnih tehnika i tehnologija. I pored takve situacije, u ovim privrednim granama ipak se obrazovanju kadrova i naučnoistraživačkom radu posvećuje dužna pažnja.

  2. Vreme reagovanja vojnika vozača / Reacting time of military solders

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    Radomir S. Gordić

    2006-10-01

    Full Text Available Bezbednost vojnog saobraćaja i upravljanje kretanjem zavise od vremena reagovanja vojnika vozača. Vojnici vozači su selekcionirana grupa vozača, pa se smatra daje njihovo vreme reagovanja kraće od vremena reagovanja generalne populacije vozača i od normativnog vremena reagovanja, koje se koristi u analizama. Zbog toga je izvršeno merenje vremena reagovanja vojnika vozača kočenjem, s ciljem da se sagleda njegov uticaj na bezbednost saobraćaja i na upravljanje saobraćajnim tokovima, kao i da se stručna javnost upozna sa dobijenim rezultatima. U radu su prikazani rezultati merenja vremena reagovanja vojnika vozača kočenjem, za slučajno odabranu grupu, u realnim uslovima. / Safety in military traffic and its management depends on the reaction time of military drivers. Military drivers are a selected group of soldiers, so it is considered that their reaction time is shorter than the reaction time of general drivers population and it is also shorter than the normative reaction time, which is used in the analyses. Therefore, the stopping time of military drivers was tested, in aider to see the influence on traffic safety and management of traffic courses, and to interest the professionals in the given results. In the essay results of stopping time in the real conditions for a random chosen group of military drivers are shown.

  3. Planetary gear dynamic response to mesh parametric excitation

    Directory of Open Access Journals (Sweden)

    Vojislav Jovan Batinić

    2013-02-01

    Full Text Available Normal 0 MicrosoftInternetExplorer4 Unutrašnje dinamičke sile i pomeranja po predviđenim stepenima slobode u planetarnim prenosnicima posledica su, prvenstveno, promen-ljivih elastičnih deformacija zubaca u sprezi, vibracija delova prenosnika i odstupanja geometrije ozubljenja usled habanja zubaca i grešaka izrade. U radu se razmatra uticaj vremenski promenljive sprežne krutosti na moguća pomeranja i sile u kontaktima zubaca. Ove funkcije su korišćene kao nelinearni koeficijenti krutosti u sistemu jednačina za ekvivalentni zupčani prenosnik pri utvrđivanju prirode pomeranja i unutrašnjih dinamičkih sila. Rezultati numeričke analize sistema jednačina kojima je opisano dinamičko ponašanje su vremenski - promenljive funkcije pomeranja tačaka sistema i dinamičkih sila u spregama zubaca centralni zupčanik/satelit i satelit/venčanik.

  4. Aerodigitalni senzori - LH Systems ADS 40 / Airborne digital sensors: LH Systems ADS 40

    Directory of Open Access Journals (Sweden)

    Marko Pejić

    2004-01-01

    Full Text Available U radu su prezentovane osnove prikupljanja prostornih podataka metodom daljinske detekcije i klasičnim fotogrametrijskim metodom. Ukazano je na kompromis između dva metoda koji nudi digitalna aerokamera. Kompanija LH Systems proizvela je digitalnu aerokameru ADS 40 koja nudi sasvim nov koncept prikupljanja prostornih podataka. Sistem kamere obezbeđuje panhromatske i trodimenzionalne informacije koristeći tri CCD linije i opciono još pet linija iz multispektralnog opsega. Kamera skenira teren sa prostornom rezolucijom od 25 cm, površine od 300 kvadratnih kilometara, uz vreme trajanja leta koje je nešto kraće od jednog sata. / This paper presents basics of collecting spatial data with remote sensing and the classical photogrammetric method. A compromise between two methods, offered by a digital aero camera, is also suggested. The LH Systems has produced a new camera concept called Airborne Digital Sensor (ADS 40 which uses a new way of collecting spatial data. The camera system provides panchromatic and stereo information using three CCD lines and up to five more lines for multispectral imagery. The performance of the camera allows a three dimensional and multispectral image with a ground sample distance of 25 cm for an area of 300 square miles within a flight time shorter than one hour.

  5. Planiranje u vojnim organizacionim sistemima / Planning in military organized systems

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    Marko D. Andrejić

    2008-01-01

    Full Text Available U radu se razmatra planiranje kao inicijalna upravljačka funkcija u vojnim organizacionim sistemima i planiranje kao proces. Obrađena je suština planiranja, ciljevi koje treba dostići, rezultati koje treba ostvariti i zadaci koje treba realizovati putem planiranja. Identifikovani su planovi u vojnim organizacionim sistemima i model izrade planova. Sagledani su subjekti planiranja i njihove obaveze i faktori koji utiču na planiranje. Sistematizovani su nedostaci planiranja u vojnim organizacionim sistemima, obrađeni principi planiranja, kao i planiranje konkretnog zadatka i ukazano na softver za podršku pojedinih faza. / The paper deals with planning as an initial managing function in military organized systems as well as with planning as a process. The very essence of planning has been considered along with targeted goals, tasks to be fulfilled through planning and attainable results. Plans in military organized systems and a plan formulation model being identified, planning subjects and their duties have been discussed as well as planning-influencing factors. The paper also gives a systematic presentation of drawbacks of planning in military organized systems, principles of planning, planning of particular tasks and a software for logistic support of particular planning phases.

  6. Vibrio fischeri and Escherichia coli adhesion tendencies towards photolithographically modified nanosmooth poly (tert-butyl methacrylate polymer surfaces

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    Elena P Ivanova

    2008-09-01

    Full Text Available Elena P Ivanova1, Natasa Mitik-Dineva1, Radu C Mocanasu1, Sarah Murphy1, James Wang2, Grant van Riessen3, Russell J Crawford11Faculty Life and Social Sciences; 2IRIS, Swinburne University of Technology, Hawthorn, Victoria, Australia; 3Centre for Materials and Surface Science, La Trobe University, Melbourne, Victoria, AustraliaAbstract: This study reports the adhesion behavior of two bacterial species, Vibrio fischeri and Escherichia coli, to the photoresistant poly(tert-butyl methacrylate (P(tBMA polymer surface. The data has demonstrated that ultraviolet irradiation of P(tBMA was able to provide control over bacterial adhesion tendencies. Following photolithography, several of the surface characteristics of P(tBMA were found to be altered. Atomic force microscopy analysis indicated that photolithographically modified P(tBMA (henceforth termed ‘modified polymer’ appeared as a ‘nanosmooth’ surface with an average surface roughness of 1.6 nm. Although confocal laser scanning microscopy and scanning electron microscopy analysis clearly demonstrated that V. fischeri and E. coli presented largely different patterns of attachment in order to adhere to the same surfaces, both species exhibited a greater adhesion propensity towards the ‘nanosmooth’ surface. The adhesion of both species to the modified polymer surface appeared to be facilitated by an elevated production of extracellular polymeric substances when in contact with the substrate.Keywords: poly(tert-butylmethacrylate polymeric surfaces, surface nanotopography, bacterial attachment, extracellular polymeric substances

  7. Poređenje odziva piezoelektričnih i induktivnih davača ubrzanja na mehaničke udare i postprocesno dobijanje pomeranja / The comparison of the response of piezoelectric and inductive acceleration gauges on mechanical impacts and the postprocesual obtaining of displacement

    Directory of Open Access Journals (Sweden)

    Snežana Jovanović

    2006-01-01

    Full Text Available U ovom radu razmatrano je merenje ubrzanja nastalih usled mehaničkih udara i post-procesno izračunavanje pomaka. Rezultati i zapažanja iz realnih opita eksperimentalno su provereni na etalonskim mašinama za vibracije i potrese. Na osnovu upoređenja zaključeno je daje za merenje ubrzanja (na konstrukciji borbenog vozila usled mehaničkih udara bolje koristiti induktivne davače i da izračunavanje pomaka iz izrazito aperiodičnih signala ubrzanja nije relevantno. / This paper presents measuring the acceleration of mechanical impacts and the postprocesual calculating of displacement. The results and observations of the tests have been evaluated on machines for vibrations and quakes. The following conclusions were drawn out of comparisons: it is better to use inductive transducers for the acceleration measurement of combat vehicles chassis because of mechanical impacts; the displacement calculation from high aperiodical acceleration signals is not relevant.

  8. EKONOMIJA U IRANSKOM USTAVU

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    Srđan Đorđević

    2015-06-01

    Full Text Available U radu se razmatra pitanje načina na koji je iranski ustavotvorac pristupio regulisanju ekonomske materije u svom tekstu. Opredeljenje za odabirom naznačenog Ustava je motivisano višestrukim specifičnostima, kojima se odlikuju, kako posmatrani ustavni tekst, tako i sama država. Problematika ekonomije u iranskim uslovima ima dodatno značenje, s obzirom da se temelji na osnovnim principima islama i pripada posebnom ekonomskom modelu savremenog društva, koji se naziva islamskom ekonomijom. Interesantnost ovog modela biva još izraženija u uslovima analizirane države i njenog ustavotvorca, zbog autentičnosti poretka u kojem se promoviše preplitanje šerijata i demokratije. Originalnost iranske ustavnosti se ne ogleda samo u konstituisanju “teokratske republike”, već i povodom utvrdjivanja principa koji u ekonomiji identifikuje sredstvo za postizanje viših duhovno-moralnih vrednosti i ciljeva.

  9. Modifikacija računarskog dela brodskog protivpodmorničkog sistema / Determining computer part of ship's antisubmarine system modification

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    Srđan T. Mitrović

    2007-07-01

    Full Text Available U radu je prikazana modifikacija analognog brodskog sistema za izvršenje protivpodmorničkog napada. S obzirom na to da su analogne računarske komponente sistema zastarele, a da se većina senzora i izvršnih sklopova može zadržati, modifikacija analognog protivpodmorničkog računara je i primarni cilj rada. Prikazan je postupak analize i projektovanja novog sistema, kao i rešavanje ključnih problema sa posebnim osvrtom na rad sistema u realnom vremenu. Rezultati istraživanja i testiranje funkcija sistema detaljno su analizirani. Postavljeni primarni ciljevi: povećanje efikasnosti jednostavnije rukovanje i integracija funkcija - uspešno su ostvareni. / Paper presents modification of analog ship's antisubmarine system. In regard to fact that analog computer's components are obsolete, and most of the sensors and actuators can be kept, modification of the analog computer is the primary goal of this paper. System analyses and design procedures and key problem solving are given, with special observation to real-time system functions. Research results and test of system functions are presented and analyzed in detail. Primary goals: increased efficiency, simplified handling and function integration are successfully realized.

  10. Menadžment procesom lanca snabdevanja u vojnoj organizaciji primenom logističkog Controllinga / Management of the military supply process by the implementation of logistic controlling

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    Predrag J. Pešić

    2010-04-01

    Full Text Available U radu je prikazan menadžment procesom lanca snabdevanja u hijerarhijskim organizacionim sistemima, kakav je sistem snabdevanja u vojnim organizacijama primenom logističkog kontrolinga. Predloženi način sastoji se od tri osnovna koraka: klasifikacija materijala pomoću ABC-analize, određivanje karakterističnih brojeva kontrolinga zaliha i planiranje popune na osnovu ovih brojeva. Razrađen je i celokupan proces lanca snabdevanja u vojnoj organizaciji primenom logističkog kontrolinga. / The purpose of explaining the model of resource management with the signal reserve, the process diagram and the SIPOC model of the supply chain explained was to present the opportunity for applying modern approach of Technical logistic in the management of the supply chains in military organizations. The described model allows efficient management of resources and material stocks by monitoring the changes in resource levels for individual stocks, groups of materials and the overall reserves. By applying ABC and XYZ analysis with the logistic Controlling the AX class materials (large annual demands and with well planned expenditures could be well managed at short notice, in extreme cases even without any stocks by applying the 'just-in-sequence' strategy.

  11. Quasistationary solutions of scalar fields around collapsing self-interacting boson stars

    Science.gov (United States)

    Escorihuela-Tomàs, Alejandro; Sanchis-Gual, Nicolas; Degollado, Juan Carlos; Font, José A.

    2017-07-01

    There is increasing numerical evidence that scalar fields can form long-lived quasibound states around black holes. Recent perturbative and numerical relativity calculations have provided further confirmation in a variety of physical systems, including both static and accreting black holes, and collapsing fermionic stars. In this work, we investigate this issue yet again in the context of gravitationally unstable boson stars leading to black-hole formation. We build a large sample of spherically symmetric initial models, both stable and unstable, incorporating a self-interaction potential with a quartic term. The three different outcomes of unstable models, namely, migration to the stable branch, total dispersion, and collapse to a black hole, are also present for self-interacting boson stars. Our simulations show that for black hole-forming models, a scalar-field remnant is found outside the black-hole horizon, oscillating at a different frequency than that of the original boson star. This result is in good agreement with recent spherically symmetric simulations of unstable Proca stars collapsing to black holes [N. Sanchis-Gual, C. Herdeiro, E. Radu, J. C. Degollado, and J. A. Font, Phys. Rev. D 95, 104028 (2017)., 10.1103/PhysRevD.95.104028].

  12. Softver za proračun uzdužne statičke stabilnosti i upravljivosti aviona za osnovnu obuku pilota / Software for calculation of an axial static stability and management of airplanes for basic pilot training

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    Dalibor Petrović

    2006-07-01

    Full Text Available U ovom radu opisan je softver za proračun uzdužne statičke stabilnosti i upravljivosti aviona za osnovnu obuku pilota. Softver je urađen sa numerom da konstruktorima omogući brzo i lako dobijanje potrebnih rezultata vezanih za stabilnost i upravljivost kod preliminarnih proračuna vezanih za ovu vrstu aviona. Program je urađen na osnovu analize velikog broja aviona iz ove klase, a njegova tačnost je testirana na avionu "Lasta". Rezultati koji su dobijeni ovim softverom bili su više od zadovoljavajućih, s obzirom na to da se radi o programu koji bi se koristio za preliminarni proračun. / This document introduced software for calculation of an axial static stability and management of airplanes for basic pilot training. The purpose of this software is to provide a quicker and an easier way of getting results regarding preliminary calculation of stability and management for these types of airplanes. The program is based upon analysis of data gathered from a large number of tested airplanes of this class. The accuracy of the program has been tested on the airplane type 'Lasta' and results were more than satisfying, especially regarding the fact that the program is meant to be used for preliminary calculation.

  13. Zaštita računarskih mreža Ministarstva odbrane i Vojske Srbije primenom virtuelnog honeyneta / Security of computer network of the Ministry of Defence and the Serbian Armed Forces using virtual honeynets

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    Zoran Bobar

    2009-07-01

    Full Text Available U ovom radu obrađena je zaštita računarskih mreža u Ministarstvu odbrane i Vojsci Srbije primenom virtuelnog honeyneta. Zaštita je obrađena sa aspekta arhitekture računarskih mreža koje imaju pristup internetu. Predloženi koncept primene virtuelnog honeyneta uzima u obzir dostignuća nauke u ovoj oblasti u svetu, ostale primenjene metode i tehnike zaštite, mogućnosti i potrebe korisnika i elemente delova računarskog sistema Ministarstva odbrane i Vojske koji bi mogli biti meta napada sa udaljenih mesta globalne (internet mreže. / This paper covers the proposed solution for security of computer network in the Ministry of Defence and the Serbian Armed Forces using virtual honeynets. The security is covered from the aspect of the architecture of computer networks with Internet access. The proposed usage of virtual honeynets for protection takes into account the accomplishments of science in this field as well as security methods and techniques, users' needs and opportunities along with the computer network components of the MoD and the SAF that can be targets for attack.

  14. Scalar clouds in charged stringy black hole-mirror system

    Science.gov (United States)

    Li, Ran; Zhao, Junkun; Wu, Xinghua; Zhang, Yanming

    2015-04-01

    It was reported that massive scalar fields can form bound states around Kerr black holes (Herdeiro and Radu, Phys. Rev. Lett. 112:221101, 2014). These bound states are called scalar clouds; they have a real frequency , where is the azimuthal index and is the horizon angular velocity of Kerr black hole. In this paper, we study scalar clouds in a spherically symmetric background, i.e. charged stringy black holes, with the mirror-like boundary condition. These bound states satisfy the superradiant critical frequency condition for a charged scalar field, where is the charge of the scalar field, and is the horizon's electrostatic potential. We show that, for the specific set of black hole and scalar field parameters, the clouds are only possible for specific mirror locations . It is shown that analytical results of the mirror location for the clouds perfectly coincide with numerical results in the regime. We also show that the scalar clouds are also possible when the mirror locations are close to the horizon. Finally, we provide an analytical calculation of the specific mirror locations for the scalar clouds in the regime.

  15. Scalar clouds in charged stringy black hole-mirror system

    CERN Document Server

    Li, Ran; Wu, Xinghua; Zhang, Yanming

    2015-01-01

    It is reported that massive scalar fields can form bound states around Kerr black holes [C. Herdeiro, and E. Radu, Phys. Rev. Lett. 112, 221101 (2014)]. These bound states are called scalar clouds, which have a real frequency $\\omega=m\\Omega_H$, where $m$ is the azimuthal index and $\\Omega_H$ is the horizon angular velocity of Kerr black hole. In this paper, we study scalar clouds in a spherically symmetric background, i.e. charged stringy black holes, with the mirror-like boundary condition. These bound states satisfy the superradiant critical frequency condition $\\omega=q\\Phi_H$ for the charged scalar field, where $q$ is the charge of scalar field, and $\\Phi_H$ is the horizon electrostatic potential. We show that, for the specific set of black hole and scalar field parameters, the clouds are only possible for the specific mirror locations $r_m$. It is shown that the analytical results of mirror location $r_m$ for the clouds are perfectly coincide with the numerical results. In addition, we show that the sca...

  16. ACCOUNTING INFORMATION SYSTEM - QUALITATIVE CHARACTERISTICS AND THE IMPORTANCE OF ACCOUNTING INFORMATION AT TRADE ENTITIES

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    CARAIMAN ADRIAN-COSMIN

    2015-03-01

    Full Text Available Financial and accounting information systems, today, no longer are the traditional ones, they are subject to the normalisation and harmonisation, in the idea of globalization, and as a natural consequence of this situation, the users of accounting information require more and more diverse information from these systems. The economic entities in general, and those in the trade, in particular, performance management, management of the current situation, with multiple phenomena of crisis, require substantiation of decisions on the basis of a system of real information, pertinent, relevant and provided in a timely manner (Radu, 2011 [7]. Apart from users and goals of information provided by entities of the accounting information system of trade entities, they must have certain qualitative characteristics that facilitate the process of interpretation and use of accounting information. At the same time they are needed because their accounting information through its better goal, to represent the support base for the elaboration of certain decisions by those interested. In this article I propose to introduce qualitative characteristics of accounting information provided by IASB (International Accounting Standards Board, which, incidentally, have been taken up initially by the Romanian accounting regulations, with their subsequent amendments and additions, so far, because, in the end, as a conclusion, I consider that I should be noted that these qualities cannot be effective unlessin turn, the users themselves have the quality to have the knowledge required to understand the information that is intended for them.

  17. Whey proteins-Properties and Possibility of Application

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    Snežana Jovanović

    2005-07-01

    Full Text Available Proteini mliječnog seruma predstavljaju 18-20% ukupnih dušikovih tvari mlijeka. Dominantni serum protein je β-laktoglobulin, dok je α-laktalbumin zastupljen s oko 20%, odnosno 2-5% od ukupnih dušikovih tvari mlijeka. Serum proteini su osjetljivi na djelovanje topline; ireverzibilno denaturiraju i koaguliraju pri djelovanju visokih temperatura. Djelovanje visokih temperatura uzrokuje kemijske interakcije među proteinima mlijeka, a posebno između α-laktalbumina, β-laktoglobulina i κ-kazeina. Kompleksi koji se ostvaruju među njima poznati su pod nazivom koagregati proteina mlijeka. Od osamdesetih godina prošlog stoljeća, serum proteini značajni su i kao nutritivni i kao funkcionalni aditivi. Serum proteini imaju dobre funkcionalne osobine. Mogu se koristiti kao sredstva za želiranje, za vezivanje vode, emulgiranje i obrazovanje pjene. Zahvaljujući primjeni membranskih tehnika frakcioniranja, danas je moguće proizvesti različite aditive na bazi serum proteina. Najvažniji proizvodi na bazi proteina sirutke su: proteinski koncentrati, izolati i hidrolizati proteina sirutke. U ovom su radu prikaz ane osobine dominantnih proteina sirutke i njihova moguća primjena u industriji mlijeka.

  18. Utjecaj materijala za pakiranje na kvalitetu Kačkavalja

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    Goce Talevski

    2017-02-01

    Full Text Available U ovom radu ispitivan je utjecaj različitog ambalažnog materijala (A - kontrolni uzorak, B - polimerna emulzija, C - vosak i D - polimerna folija na kvalitetu Kačkavalja. Najnižu pH vrijednost imao je uzorak zaštićen voskom, što je rezultat zadržavanja nastalih organskih kiselina i plinova od strane ambalažnog materijala. Statistički značajan utjecaj ambalažnih materijala (p<0.01 bio je utvrđen kod sadržaja suhe tvari, proteina i pepela, dok statistička značajnost nije bila utvrđena kod sadržaja masti kod Kačkavalja. Proteolitički procesi bili su izraženiji kod uzorka zaštićenog voskom i polimernom folijom, s višim razinama topljivog dušika, primarnih i sekundarnih dušičnih spojeva i koeficijenta zrelosti u odnosu na kontrolni uzorak i uzorak zaštićen polimernom emulzijom.

  19. Trokomponentne granulisane smeše na bazi heksogena, aluminijuma i polistirena kao flegmatizatora / Three-component granular mixtures on the basis of hexogen, aluminium and polystirene as a binder

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    Mirjana N. Lukić-Anđelković

    2009-10-01

    Full Text Available U radu je prikazan način dobijanja i karakteristike trokomponentnih smeša RDX/Al/PS. Primenjen flegmatizator heksogena je termostabilni polimer polistiren čija je karakteristika da dobro prekriva. Primenjivan je konstantan sadržaj od 5% PS za različite sadržaje heksogena i aluminijuma. Sadržaj aluminijuma u smešama je 10, 15, 20 u 25% m/m. Ispitan je sastav i određena brzina detonacije. / The characteristics of three-component RDX/PS/Al mixtures have been described s well as the method for their preparation. Polystirene as a binder is a thermostable polymer with satisfactory characteristics for bonding explosives. The constant content of 5% m/m PS was applied for different contents of hexogen and aluminium. The content of Al in the mixtures was 10, 15, and 20% m/m. The composition of the bonded explosives was examined as well as the detonation velocity of these mixtures.

  20. THE BANAT JEWS DURING THE WAR DICTATORSHIP

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    Mihai VISAN

    2014-06-01

    Full Text Available In this study, we focused on the legal and social situation of the Banat Jews after the Union from 1918, when they were not recognized the citizenship acquired even since the time of the monarchy. Firstly we sketched the citizenship legislation adopted by governments in Bucharest, and the discriminatory laws on the naturalization (obtaining the Romanian citizenship of Jews. Further on, we briefly presented not only the way this legislation on citizenship was applied, but also the economic discriminatory legislation within inter-war Banat counties. Our investigation shows the special position of the Jews from Banat caused by their pursuit by police, being constantly accused of disloyalty towards the Romanian State. The study presents the material, human and financial effort of this ethnic group to support the Romanian front and their co-nationals deported to Transnistria. Finally, it is shown the contribution of local and national personalities to stop the deportation of the Banat Jews to concentration camps in Poland: Rabbi Alexander Safran, Metropolitan of Transylvania Balan, Radu Lecca and Franz von Neuman from Arad.

  1. Određivanje sopstvenih učestanosti i oblika oscilovanja delova planetarnog prenosnika primenom metode konačnih elemenata / Determining of natural frequencies and forms of oscillation of the parts of planetary gear trains using finite element method

    Directory of Open Access Journals (Sweden)

    Vojislav Batinić

    2007-07-01

    Full Text Available U radu je prikazan metodološki pristup određivanju sopstvenih učestanosti i vibracionih modova delova planetarnog prenosnika korišćenjem metode konačnih elemenata. Modalnom analizom ostvarenom primenom metode konačnih elemenata po pravilu, dobija se veliki broj modalnih oblika (frekvencija sopstvenog oscilovanja. U realnim uslovima pobuđuju se samo neki od njih. Glavni cilj ovog rada jeste određivanje sopstvenih učestanosti da bi se sagledale konstrukcione mere i rešenja za sprečavanje modalnog oscilovanja. / This paper presents methodological approach to calculation of natural frequencies and modal shapes by using of finite elements method. Modal analysis realized by application of finite elements method, results by the rule, in a large number of modal shapes (frequencies of natural oscillation. In real conditions only some of them are excited. The main purpose of this paper is calculation of natural frequencies that we can recognize design effort and solutions for hindering of modal oscillation.

  2. Modelovanje određenih elemenata digitalnih atlasnih karata sa aspekta geografskih informacionih sistema/Modeling certain digital atlas map elements from the geographical information systems aspect

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    Nikola S. Stamenković

    2014-10-01

    Full Text Available Atlasi i GIS važni su elementi prikaza modela životnog prostora. U radu je predstavljen model upotrebe GIS tehnologije u izradi određenih elemenata atlasnih karata. To podrazumeva definisanje osnovnih matematičkih elemenata karata digitalnog atlasa i mogućih struktura i formi baza prostornih podataka. Geografski elementi atlasnih karata, pretprocesiranje u GIS i strukturiranje karata digitalnog atlasa podržano GIS-om čine osnovne teme rada. Naglašava se mesto GIS tehnologije u procesu izrade atlasnih karata sa dva aspekta. Jedan aspekt predstavlja okvir geografskih informacionih sistema i mogućnosti koje pružaju, a drugi aspekt predstavljaju kartografske metode, odnosno sistem kartografskih metoda u čijem okruženju se izrađuju atlasne karte. / Besides geographic maps, atlases represent the most important cartographic models of environment. Nowadays, contemporary geographic information systems (GISare increasingly used ' in planning, designing and predicting the conditions and processes of complex dynamic spatial systems. Collecting data and information for a specific geographical map and GIS represents its basis.

  3. Primena cost-benefit-benefit analize u vrednovanju i izboru javnih projekata (ekonomski aspekt

    Directory of Open Access Journals (Sweden)

    Dragana N. Petrović

    2013-10-01

    Full Text Available Cost-benefit analiza je celovita analiza koristi i troškova koje jedan projekat donosi samom vlasniku projekta i društvu u celini (uključujući i investitora. Izbor najbolje investicione alternative ostvaruje na osnovu finansijske i ekonomske analize, kao dva integralna dela cost-benefit analize. Prvu od ovih analiza obradila je ista grupa autora u članku „Primena cost-benefit analize u vrednovanju i izboru javnih projekata (finansijski aspekt“, objavljenom u prethodnom broju časopisa Vojnotehnički glasnik. Predmet obrade ovog rada je ekonomska analiza, kao logički nastavak prethodnog rada. Zbog toga se na brojne oznake tabela, uključenih u sadržaj finansijske analize (1-–5, nadovezuju (prema hronološkom redu oznake tabela koje pripadaju ekonomskoj analizi (6–8 Sprovođenje ekonomske analize ostvaruje se prema određenoj, dosta složenoj proceduri, a završava se utvrđivanjem kriterijuma ekonomske (društvene isplativosti projekta. U radu su obrađeni osnovni pokazatelji ekonomskog (društvenog prinosa projekta,  kao što su: neto sadašnja vrednost novčanih tokova i cost-benefit koeficijent.

  4. Poređenje karakteristika i mogućnosti budućeg servisa u mikrotalasnom području i mobilnih sistema treće generacije / The comparison of characteristics and opportunities of future service in microwave band and mobile systems third generation

    Directory of Open Access Journals (Sweden)

    Milan Lazarević

    2006-10-01

    Full Text Available Značaj i izuzetno brz razvoj telekomunikacija nameće neprekidno izučavanje i primenu novih servisa i novih postupaka integracije i komutacije u njemu. Od komercijalnih radio-servisa koji su trenutno dostupni u našoj zemlji, najveći deo je iz sistema javne mobilne telefonije. U radu je prikazana organizacija i način funkcioniranja mobilnog komutacionog sistema i njegovo mesto i značaj u sistemu veze Srbije. Detaljno je obrađen WiMAX (World Interoperability for Microwave Access servis mobilne telefonije i analizirane njegove prednosti i nedostaci u odnosu na mobilni servis 3G (treće generacije. Predložena je implementacija WiMAX-a u savremen sistem telekomunikacija. / The importance and very quick development of telecommunications ask for endless research and applying new services and new methods of integration and switching in it. Among commercial radio services that are at the moment accessible in our state, the most significant pan is from public mobile telephony system. In this work we presented organization and way of functioning of mobile switching system and their place and importance in Serbian system of communications. WiMAX service of mobile telephony is processed in details and advantages and disadvantages versus 3G mobile service are analyzed. The suggestion of implementation of WiMAX in modern system of telecommunications is given.

  5. Scalar clouds in charged stringy black hole-mirror system

    Energy Technology Data Exchange (ETDEWEB)

    Li, Ran; Zhao, Junkun; Wu, Xinghua; Zhang, Yanming [Henan Normal University, Department of Physics, Xinxiang (China)

    2015-04-15

    It was reported that massive scalar fields can form bound states around Kerr black holes (Herdeiro and Radu, Phys. Rev. Lett. 112:221101, 2014). These bound states are called scalar clouds; they have a real frequency ω = mΩ{sub H}, where m is the azimuthal index and Ω{sub H} is the horizon angular velocity of Kerr black hole. In this paper, we study scalar clouds in a spherically symmetric background, i.e. charged stringy black holes, with the mirror-like boundary condition. These bound states satisfy the superradiant critical frequency condition ω = qΦ{sub H} for a charged scalar field, where q is the charge of the scalar field, and Φ{sub H} is the horizon's electrostatic potential. We show that, for the specific set of black hole and scalar field parameters, the clouds are only possible for specific mirror locations r{sub m}. It is shown that analytical results of the mirror location r{sub m} for the clouds perfectly coincide with numerical results in the qQ << 1 regime. We also show that the scalar clouds are also possible when the mirror locations are close to the horizon. Finally, we provide an analytical calculation of the specific mirror locations rm for the scalar clouds in the qQ >> 1 regime. (orig.)

  6. Construction and physical properties of Kerr black holes with scalar hair

    Science.gov (United States)

    Herdeiro, Carlos; Radu, Eugen

    2015-07-01

    Kerr black holes (BHs) with scalar hair are solutions of the Einstein-Klein-Gordon field equations describing regular (on and outside an event horizon), asymptotically flat BHs with scalar hair (Herdeiro and Radu 2014 Phys. Rev. Lett. 112 221101). These BHs interpolate continuously between the Kerr solution and rotating boson stars in D = 4 spacetime dimensions. Here we provide details on their construction, discussing properties of the ansatz, the field equations, the boundary conditions and the numerical strategy. Then, we present an overview of the parameter space of the solutions, and describe in detail the space-time structure of the BH’s exterior geometry and of the scalar field for a sample of reference solutions. Phenomenological properties of potential astrophysical interest are also discussed, and the stability properties and possible generalizations are commented on. As supplementary material to this paper we make available numerical data files for the sample of reference solutions discussed, for public use (see stacks.iop.org/cqg/32/144001/mmedia).

  7. Primjena nove tehnike prosušivanja bobica grožđa za proizvodnju prošeka

    OpenAIRE

    Sito, Stjepan; Peršurić Bernobić, Katarina; Bilandžija, Nikolina; Kraljević, Ante; Sinković, Ana; Sinković, Petra

    2013-01-01

    U radu su prikazani rezultati pokusnog prosušivanja grožđa sorti Muškat žuti i Muškat ruža crni dopremljenih iz vinograda blizu Poreča s OPG-a Peršurić Đordano. Uzorci prije sušenja sorte Muškat žuti imali su sadržaj šećera 87ºOe (186 g/L), a Muškat ruža crni 91ºOe (200 g/L). Nakon sušenja sadržaj šećera u soku bobica bio je oko 173ºOe (378 g/L). Proces prosušivanja uzoraka sorte Muškat žuti trajao je 120 sati, a kod sorte Muškat ruža crni 108 sati pri temperaturi zraka za sušenje od 35-38°C ...

  8. Analitičnost u definisanju strategijskh opcija na primeru razvoja multimodalnog transporta u Vojsci Srbije

    Directory of Open Access Journals (Sweden)

    Srđan D. Ljubojević

    2014-04-01

    Full Text Available Brza i intenzivna dejstva, povećane potrebe za komuniciranjem i potencijalni zadaci mobilnijih i samostalnijih jedinica zahtevaju od vojnih organizacija da razvijaju i usavršavaju sistem logističke podrške, usmeravajući ga ka potrebama zajedničkih, multinacionalnih i integrisanih snaga. Zato Vojska Srbije mora projektovati svoju organizaciju i razviti sposobnosti da se, po potrebi, brzo prestrukturira. U skladu s tim mora prilagoditi i svoj strategijski razvoj, ne bi li postala deo multinacionalnog tima. Specifičnost delatnosti vojne organizacije implicira zahtev za analitičkim pristupom u procesima odlučivanja, kako na taktičkom i operativnom, tako i na strategijskom nivou. Strategijske odluke, po svojoj prirodi, zahtevaju veliku dozu intuitivnosti i iskustva donosilaca odluka. U radu je prikazana mogućnost analitičnog pristupa definisanju strategije, kombinovanjem menadžment metoda. Istovremeno, rad je pragmatično usmeren ka definisanju strategije razvoja multimodalnog transporta u Vojsci Srbije, kao jednom u nizu izazova pred kojim će se, u najskorijoj budućnosti, Vojska naći.

  9. Model izbora motocikla za potrebe saobraćajne podrške vojske / Model of motorcycle choice for traffic support needs in the military of Serbia and Montenegro

    Directory of Open Access Journals (Sweden)

    Predrag Stamenković

    2006-01-01

    Full Text Available Motocikli koji se koriste u jedinicama za regulisanje i kontrolu saobraćaja u Vojsci treba da imaju takve tehničko-eksploatacione karakteristike koje će u toku eksploatacionog perioda u potpunosti zadovoljiti stroge zahteve regulisanja i kontrole vojnog putnog saobraćaja i poboljšati kvalitet saobraćajne podrške u suvremenim borbenim dejstvima. Pri optimalnom izboru motocikla važno je razmatrati karakteristike motocikla i zahteve koje treba da ispuni. U radu je prikazan model izbora motocikala primenom metode višekriterijumskog rangiranja Promethee. / Motorcycles used in traffic direct and control units in the Military of Serbia and Montenegro should have such technical and operational characteristics that -will completely meet strict demands for directing and controlling military traffic and that -will improve the quality of traffic support in modern combat conditions. It is important to discuss characteristics of a motorcycle and demands it has to meet -when choosing "optimal" motorcycle model. This paper shows model of motorcycle choice using Promethee method of multiple ranging criteria.

  10. Športsko arbitražno sudište HOO - organizacijske i postupovne odredbe

    Directory of Open Access Journals (Sweden)

    Jozo Čizmić

    2011-12-01

    Full Text Available Danas se većina športskih sporova rješava pred arbitražnim sudovima. Sve prednosti arbitražnog sudovanja odavno su prepoznate u športu, pa je danas rijetkost da se spor vezan uz određeni šport nađe pred državnim sudom. Državni sudovi teško mogu pratiti razvitak i složenost odnosa koji nastaju u športu, pa su specijalizirane arbitraže sa stručnim i educiranim arbitrima idealno rješenje za ove vrste sporova. Športske arbitraže često imaju i obilježja tzv. prisilnih arbitraža (arbitrage obligatore, compulspry arbitration, Zwangsshiedsgericht, kojima se stranke moraju obratiti radi rješavanja određenih sporova. U radu se, nakon kratkog pojmovnog objašnjenja instituta arbitražnog sudovanja i športske arbitraže, daje prikaz postupka pred Športskim arbitražnim sudištem Hrvatskog olimpijskog odbora prema Arbitražnim pravilima Športskog arbitražnog sudišta pri Hrvatskom olimpijskom odboru.

  11. Zajednička siguronosna i obrambena politika Europske unije prema Lisabonskom ugovoru

    Directory of Open Access Journals (Sweden)

    Davorin Rudolf

    2014-06-01

    Full Text Available Zajednička vanjska i sigurnosna politika Europske unije normirana je Ugovorom o Europskoj uniji (Mastrihtskim ugovorom 1992. Do tada zajedničku sigurnosnu i obrambenu politiku države članice EU bile su prepustile Sjevernoatlantskom savezu (NATO-u, uz skromnu ulogu Zapadnoeuropske unije (WEU. Lisabonski ugovor Europske unije čine izmijenjeni i dopunjeni temeljni akti Unije – Rimski ugovor iz 1957. i Mastrihtski, a stupio je na snagu 1. prosinca 2009. U njemu se nalaze i odredbe o zajedničkoj sigurnosnoj i obrambenoj politici EU. Ta politika oblikuje se postupno, i ona može, na koncu, dovesti do zajedničke obrane Unije. U radu se analizira i članak 7. Ustava Republike Hrvatske, kojim je određeno da se državama saveznicama u slučaju agresije na njihov teritorij pomoć Hrvatske može uputiti (nakon određenoga postupka i odluka u najvišim organima državne vlasti, što znači i ne mora. Prema mišljenju autora, takva ustavna odredba nije u skladu sa Sjevernoatlantskim, ni Lisabonskim ugovorom, jer pomoć se mora uputiti.

  12. Rezultati merenja torzionih oscilacija u sistemu propulzije brodskog dizel motora / The results of torsional vibrations measurement in the system of diesel engine propulsion

    Directory of Open Access Journals (Sweden)

    Dragan Trifković

    2005-11-01

    Full Text Available U ovom radu prikazan je postupak merenja, kao i rezultati dobijeni merenjem nivoa torzionih oscilacija u sistemu prenosa snage sa brodskog dizel motora na propeler. Primenjen je princip merenja torzionog napona u funkciji broja obrtaja brodskog motora upotrebom savremene merne opreme. Proveren je položaj kritičnih brojeva obrtaja i nivo naprezanja propelerskih vratila, i na osnovu toga data ocena tehničkog stanja sistema sa aspekta naprezanja usled torzionih oscilacija. / The measuring treatment, as well as the results of torsional vibrations in the transfer from the ship diesel engine to the propeller are shown in this work. The measuring principle of torsional stress according to the function of rotation number of ship engine is applied by using of modern measurement equipment. The position of critical rotation numbers and the level of propeller shafts stress have been checked, and on the basis of these indices the evaluation of technical condition of the system has been estimated from the aspect of torsional vibrations strain.

  13. Ometanje radarskih glava za samonavođenje amplitudno modulisanom metodom ometanja "cross eye" / Monopulse homing missile jamming with the amplitude modulated cross eye method

    Directory of Open Access Journals (Sweden)

    Bojan Milanović

    2008-07-01

    Full Text Available U radu je prikazan uticaj metode ometanja "Cross eye" na uspešno vođenje rakete monoimpulsnom radarskom glavom za samonavođenje. Analiza dobijenih rezultata pokazala je: da se maksimalna greška određivanja položaja cilja postiže kada ometači emituju koherentne signale čija je fazna razlika 180°, da je greška veća što je međusobno rastojanje između antena ometača veće, da je, suprotno očekivanju, efikasnost ometanja veća što je rastojanje između ometača i rakete koja se ometa manje. / This article shows the effect of the "Cross eye" jamming method on successful guidance of monopulse homing missiles. The analysis of the results has shown that the maximal tracking error is made if the jamming signals are coherent and out of phase, that a larger distance between jamming antennas causes a greater error, and that, opposite to expectations, a smaller distance between the jammer and the missile results in better jamming effects.

  14. Primena sistema za monitoring buke i MatLab-a za proračun nivoa avionske buke / Noise monitoring system and MatLab application for aircraft noise level calculation

    Directory of Open Access Journals (Sweden)

    Milorad Pavlović

    2007-07-01

    Full Text Available U radu je prikazan način primene sistema za monitoring buke, terminal NMT 3637B i softver 7802, firme Brüel & Kjær, u procesu sertifikacije mlaznih aviona, prema ICAO, standardu Annex 16 i algoritam za proračun EPNL nivoa buke (Effective Perceived Noise Level, koji je kreiran u okruženju MatLab. Ovim softverom sublimirani su svi potrebni ulazni podaci, akustički i neakustički, radi dobijanja traženog nivoa i svih međurezultata neophodnih za formiranje konačnog izveštaja koji se dostavlja vazduhoplovnim vlastima. / This paper presents the use of noise monitoring system, terminal NMT 3637B and software 7802, Brüel & Kjær in process of jet aircraft noise certification according to standard ICAO Annex 16 and the algoritam for calculating EPNL noise level (Effective Perceived Noise Level that we created in MatLab environment. This software sublimated all necessary input parameters, acoustic and non acoustic in purpose of getting final result and intermediate data. Those data are important for reporting to the certificating authority.

  15. Logistička operacija - kategorijalno i pojmovno određenje / Logistic operation: Its definition and classification

    Directory of Open Access Journals (Sweden)

    Vasilije Mišković

    2004-05-01

    Full Text Available Logistička operacija kod nas do sada nije definisana, pa je u ovom radu taj pojam bliže određen, razgraničavanjem od sličnih pojmova i klasifikacijom. Izdvojeni su konstituensi logističke operacije i njen opšti cilj. Takođe dati su i ciljevi pojedinih vrsta logističke operacije. Obrađeni su i uslovi u kojima se mogu odvijati logističke operacije, raspored snaga i sredstava specifičnosti podrške i obezbeđenja, priprema, organizacija i realizacija logističke operacije. / Since logistic support has not been defined in our country yet, this paper contributes in determining the notion by its differentiation and classification. The constituents and the general aim of logistic operation are pointed out as well as the objectives of its particular types. Conditions under which logistic operations are conducted, distribution of human and material resources, particularities of support and protection, are treated as well as logistic operation preparation, organization and realization.

  16. Poređenje snage za jednu i dve kontrarotirajuće hidro turbine u Venturijevoj cevi - I deo / Comparison of power in one and two contra-rotating hydro turbines in a Venturi tube: Part I

    Directory of Open Access Journals (Sweden)

    Mirko Kozić

    2009-04-01

    Full Text Available U radu su prikazani rezultati istraživanja koje je obuhvatilo poređenje snage koju daju jedna i dve kontrarotirajuće hidro turbine u Venturijevoj cevi, za zadati broj obrtaja i brzinu vode na ulazu u cev. Rezultati su dobijeni komercijalnim softverom za numeričku dinamiku fluida. Numeričke simulacije za dve turbine koje se obrću u suprotnim smerovima sa jednakim ugaonim brzinama pokazale su da se javlja znatan pad snage na prednjoj turbini, dok je ukupna snaga nešto veća nego za jednu turbinu. / This paper presents the results of research into the comparison of power obtained with one and two contra-rotating hydro turbines in a Venturi tube for the given number of revolutions per minute and the given water velocity at the tube entry. The results were obtained with commercial software for numerical fluid dynamics. The numerical simulations for two turbines rotating in opposite directions with equal angular velocities showed that a considerable power drop occurred in the front turbine, whereas the total power is somewhat larger than that for one turbine.

  17. Simulacioni model sistema za upravljanje letom protivbrodske rakete / Model for simulating the flight control system of a antiship missile

    Directory of Open Access Journals (Sweden)

    Nebojša N. Gaćeša

    2007-04-01

    Full Text Available U radu je analiziran program za simulaciju sistema za upravljanje letom protivbrodske rakete sa radarskom glavom za samonavođenje. Analiziran je matematički model rakete, model autopilota i model cilja. Ovakvim pristupom dobijen je rezultat koji omogućava uspostavljanje realnijeg procesa praćenja leta konkretne protivbrodske rakete, budući da upravljanje letom rakete na celoj trajektoriji ima znatne prednosti u odnosu na nevođene projektile, pre svega zbog mogućnosti gađanja pokretnih ciljeva. Simulacioni model upravljanja letom rakete pruža mogućnosti za dalje proučavanje ove klase raketa. / The paper analyzes a program for simulating the flight control of an antiship missile with the radar seeker. The paper analyzes a mathematic missile model an autopilot model and a target model. Thus obtained results enable a more realistic process of flight tracking of a particular antiship missile as the missile guidance along the whole trajectory provides many advantages over unguided projectiles, primarily because of the possibility to fire at moving targets. The flight control simulation model enables further study of this missile class.

  18. Gravitacijske satelitske misije : Satellite gravity missions

    Directory of Open Access Journals (Sweden)

    Medžida Mulić

    2012-12-01

    Full Text Available Sila teže se smatra osnovnom fizikalnom silom u prirodi. Savremene satelitske misije: CHAMP, GRACE i GOCE omogućile su dobivanje globalnih modela polja sile teže s veoma visokom tačnošću, kao i njegovih prostornih i temporalnih varijacija. U ovom radu istaknuti su ciljevi, karakteristike i rezultati navedenih misija, te iznesena očekivanja u budućnosti, kao i njihov značaj i doprinos za geodetsku praksu kao i istraživanja u oblasti geodezije, geofizike i hidrologije. : Gravity is considered as the basic physical force in the nature. Modern satellite missions: CHAMP, GRACE and GOCE allowed modeling of the global gravity field with very high accuracy, as well as its spatial and temporal variations. This paper describes the main objectives, characteristics, the latest results of these missions, as well as the expectations of the future observations, and their importance and contributions for the surveying and geodetic practice, and scientific achievements as well, in geodesy, geophysics and hydrology.

  19. Iron K$\\alpha$ line of Kerr black holes with scalar hair

    CERN Document Server

    Ni, Yueying; Cardenas-Avendano, Alejandro; Bambi, Cosimo; Herdeiro, Carlos A R; Radu, Eugen

    2016-01-01

    Recently, a family of hairy black holes in 4-dimensional Einstein gravity minimally coupled to a complex, massive scalar field was discovered (Herdeiro & Radu, 2014). Besides the mass $M$ and spin angular momentum $J$, these objects are characterized by a Noether charge $Q$, measuring the amount of scalar hair, which is not associated to a Gauss law and cannot be measured at spatial infinity. Introducing a dimensionless scalar hair parameter $q$, ranging from 0 to 1, we recover (a subset of) Kerr black holes for $q=0$ and a family of rotating boson stars for $q=1$. In the present paper, we explore the possibility of measuring $q$ for astrophysical black holes with current and future X-ray missions. We study the iron K$\\alpha$ line expected in the reflection spectrum of such hairy black holes and we simulate observations with Suzaku and eXTP. As a proof of concept we show, by analyzing a sample of hairy black holes, that current observations can already rule out a region in the space of solutions, because ...

  20. Melanophoromas and iridophoromas in reptiles.

    Science.gov (United States)

    Heckers, K O; Aupperle, H; Schmidt, V; Pees, M

    2012-01-01

    Chromatophoromas are tumours of pigment-producing cells of the skin and are rarely reported in reptiles. These tumours are subclassified on the basis of the type of pigment. The present study characterizes chromatophoromas arising in 26 reptiles, including six snakes, 19 lizards and a tortoise. These include the first reports of melanophoromas in a yellow anaconda (Eunectes notaeus), pigmy rattlesnake (Sistrurus spp.), southern water snake (Nerodia fasciata), veiled chameleon (Chamaeleo calyptratus) and leopard gecko (Eublepharis macularius); the first reports of benign iridophoromas in a savannah monitor (Varanus exanthematicus), veiled chameleon and bearded dragon (Pogona vitticeps); and the first description of a malignant iridophoroma in a bearded dragon. Additionally, in three bearded dragons a 'mucinous' type of melanophoroma is described for the first time. Chromatophoromas generally arose from the skin of the body and head and ranged in size from 0.2 to 2.0cm in diameter. In six cases the animals were humanely destroyed immediately after diagnosis. Three further animals were humanely destroyed following recurrence of their tumour. Six of these nine reptiles had visceral metastases. Grossly, melanophoromas (n=20) were grey or black, while iridophoromas (n=6) were white in colour. Microscopically, most of the tumours were composed of spindle cells with varying pigmentation and 0-2 mitoses per 10 high power fields. Six of the 20 melanophoromas were classified as malignant due to the presence of intravascular tumour cells, visceral metastases, high pleomorphism and/or mitotic figures. Five of the six iridophoromas were classified as benign and the one malignant tumour was defined by the presence of intravascular tumour cells and visceral metastases. Immunohistochemically, melan A and S100 were coexpressed by all of the chromatophoromas.

  1. Comparison of chemistry analytes between 2 portable, commercially available analyzers and a conventional laboratory analyzer in reptiles.

    Science.gov (United States)

    McCain, Stephanie L; Flatland, Bente; Schumacher, Juergen P; Clarke Iii, Elsburgh O; Fry, Michael M

    2010-12-01

    Advantages of handheld and small bench-top biochemical analyzers include requirements for smaller sample volume and practicality for use in the field or in practices, but little has been published on the performance of these instruments compared with standard reference methods in analysis of reptilian blood. The aim of this study was to compare reptilian blood biochemical values obtained using the Abaxis VetScan Classic bench-top analyzer and a Heska i-STAT handheld analyzer with values obtained using a Roche Hitachi 911 chemical analyzer. Reptiles, including 14 bearded dragons (Pogona vitticeps), 4 blue-tongued skinks (Tiliqua gigas), 8 Burmese star tortoises (Geochelone platynota), 10 Indian star tortoises (Geochelone elegans), 5 red-tailed boas (Boa constrictor), and 5 Northern pine snakes (Pituophis melanoleucus melanoleucus), were manually restrained, and a single blood sample was obtained and divided for analysis. Results for concentrations of albumin, bile acids, calcium, glucose, phosphates, potassium, sodium, total protein, and uric acid and activities of aspartate aminotransferase and creatine kinase obtained from the VetScan Classic and Hitachi 911 were compared. Results for concentrations of chloride, glucose, potassium, and sodium obtained from the i-STAT and Hitachi 911 were compared. Compared with results from the Hitachi 911, those from the VetScan Classic and i-STAT had variable correlations, and constant or proportional bias was found for many analytes. Bile acid data could not be evaluated because results for 44 of 45 samples fell below the lower linearity limit of the VetScan Classic. Although the 2 portable instruments might provide measurements with clinical utility, there were significant differences compared with the reference analyzer, and development of analyzer-specific reference intervals is recommended. ©2010 American Society for Veterinary Clinical Pathology.

  2. In situ cardiac perfusion reveals interspecific variation of intraventricular flow separation in reptiles.

    Science.gov (United States)

    Joyce, William; Axelsson, Michael; Altimiras, Jordi; Wang, Tobias

    2016-07-15

    The ventricles of non-crocodilian reptiles are incompletely divided and provide an opportunity for mixing of oxygen-poor blood and oxygen-rich blood (intracardiac shunting). However, both cardiac morphology and in vivo shunting patterns exhibit considerable interspecific variation within reptiles. In the present study, we develop an in situ double-perfused heart approach to characterise the propensity and capacity for shunting in five reptile species: the turtle Trachemys scripta, the rock python Python sebae, the yellow anaconda Eunectes notaeus, the varanid lizard Varanus exanthematicus and the bearded dragon Pogona vitticeps To simulate changes in vascular bed resistance, pulmonary and systemic afterloads were independently manipulated and changes in blood flow distribution amongst the central outflow tracts were monitored. As previously demonstrated in Burmese pythons, rock pythons and varanid lizards exhibited pronounced intraventricular flow separation. As pulmonary or systemic afterload was raised, flow in the respective circulation decreased. However, flow in the other circulation, where afterload was constant, remained stable. This correlates with the convergent evolution of intraventricular pressure separation and the large intraventricular muscular ridge, which compartmentalises the ventricle, in these species. Conversely, in the three other species, the pulmonary and systemic flows were strongly mutually dependent, such that the decrease in pulmonary flow in response to elevated pulmonary afterload resulted in redistribution of perfusate to the systemic circuit (and vice versa). Thus, in these species, the muscular ridge appeared labile and blood could readily transverse the intraventricular cava. We conclude that relatively minor structural differences between non-crocodilian reptiles result in the fundamental changes in cardiac function. Further, our study emphasises that functionally similar intracardiac flow separation evolved independently in

  3. Amplification of microsatellite repeat motifs is associated with the evolutionary differentiation and heterochromatinization of sex chromosomes in Sauropsida.

    Science.gov (United States)

    Matsubara, Kazumi; O'Meally, Denis; Azad, Bhumika; Georges, Arthur; Sarre, Stephen D; Graves, Jennifer A Marshall; Matsuda, Yoichi; Ezaz, Tariq

    2016-03-01

    The sex chromosomes in Sauropsida (reptiles and birds) have evolved independently many times. They show astonishing diversity in morphology ranging from cryptic to highly differentiated sex chromosomes with male (XX/XY) and female heterogamety (ZZ/ZW). Comparing such diverse sex chromosome systems thus provides unparalleled opportunities to capture evolution of morphologically differentiated sex chromosomes in action. Here, we describe chromosomal mapping of 18 microsatellite repeat motifs in eight species of Sauropsida. More than two microsatellite repeat motifs were amplified on the sex-specific chromosome, W or Y, in five species (Bassiana duperreyi, Aprasia parapulchella, Notechis scutatus, Chelodina longicollis, and Gallus gallus) of which the sex-specific chromosomes were heteromorphic and heterochromatic. Motifs (AAGG)n and (ATCC)n were amplified on the W chromosome of Pogona vitticeps and the Y chromosome of Emydura macquarii, respectively. By contrast, no motifs were amplified on the W chromosome of Christinus marmoratus, which is not much differentiated from the Z chromosome. Taken together with previously published studies, our results suggest that the amplification of microsatellite repeats is tightly associated with the differentiation and heterochromatinization of sex-specific chromosomes in sauropsids as well as in other taxa. Although some motifs were common between the sex-specific chromosomes of multiple species, no correlation was observed between this commonality and the species phylogeny. Furthermore, comparative analysis of sex chromosome homology and chromosomal distribution of microsatellite repeats between two closely related chelid turtles, C. longicollis and E. macquarii, identified different ancestry and differentiation history. These suggest multiple evolutions of sex chromosomes in the Sauropsida.

  4. ADAPTACIJA TRAŽNJE VARIRANJEM INTENZITETA PROIZVODNJE

    Directory of Open Access Journals (Sweden)

    Mehmed Meta

    2013-12-01

    Full Text Available Normalna je reakcija menadžmenta preduzeća da u uslovima rasta tražnje za svojim proizvodima žele povećati obim proizvodnje, jer je to jedan od najsigurnijih načina ostvarenja boljih poslovnih i finansijskih performansi. Obim proizvodnje se može povećavati na različite načine, kao što se i u uslovima pada potražnje proizvodnja može smanjivati primenom različitih oblika proizvodne adaptacije. Jedan od načina da preduzeće ostvari veći obim proizvodnje, u okvirima postojećih kapaciteta, je prilagođavanje variranjem intenziteta proizvodnje. Kod ovog oblika prilagođavanja kapacitet preduzeća ili nekog njegovog organizaciono-tehnološkog dela (pogona, diviziona, poslovne jedinice ili odeljenja i vreme trajanja proizvodnje su konstantni, ne menjaju se, dok se intenzitet rada povećava ili smanjuje. Do variranja obima proizvodnje dolazi, dakle, jedino promenom intenziteta. Promena intenziteta proizvodnje sa postojećim kapacitetima i neizmenjenim brojem radnika u nepromenjenom radnom vremenu, znači promenu produktivnosti rada radnika zaposlenih u tehnološkoj fazi proizvodnje i variranje intenziteta korišćenja raspoloživih kapaciteta preduzeća. Intenzitet proizvodnje se može menjati na različite načine, što u prvom redu zavisi od karaktera tehnološkog procesa, specifičnosti opreme koja se pri proizvodnji koristi, stepena stručnosti angažovane radne snage i uticaja drugih faktora.

  5. Sequence and gene content of a large fragment of a lizard sex chromosome and evaluation of candidate sex differentiating gene R-spondin 1

    Science.gov (United States)

    2013-01-01

    Background Scant genomic information from non-avian reptile sex chromosomes is available, and for only a few lizards, several snakes and one turtle species, and it represents only a small fraction of the total sex chromosome sequences in these species. Results We report a 352 kb of contiguous sequence from the sex chromosome of a squamate reptile, Pogona vitticeps, with a ZZ/ZW sex microchromosome system. This contig contains five protein coding genes (oprd1, rcc1, znf91, znf131, znf180), and major families of repetitive sequences with a high number of copies of LTR and non-LTR retrotransposons, including the CR1 and Bov-B LINEs. The two genes, oprd1 and rcc1 are part of a homologous syntenic block, which is conserved among amniotes. While oprd1 and rcc1 have no known function in sex determination or differentiation in amniotes, this homologous syntenic block in mammals and chicken also contains R-spondin 1 (rspo1), the ovarian differentiating gene in mammals. In order to explore the probability that rspo1 is sex determining in dragon lizards, genomic BAC and cDNA clones were mapped using fluorescence in situ hybridisation. Their location on an autosomal microchromosome pair, not on the ZW sex microchromosomes, eliminates rspo1 as a candidate sex determining gene in P. vitticeps. Conclusion Our study has characterized the largest contiguous stretch of physically mapped sex chromosome sequence (352 kb) from a ZZ/ZW lizard species. Although this region represents only a small fraction of the sex chromosomes of P. vitticeps, it has revealed several features typically associated with sex chromosomes including the accumulation of large blocks of repetitive sequences. PMID:24344927

  6. Karyotype analysis and sex determination in Australian Brush-turkeys (Alectura lathami)

    Science.gov (United States)

    Ortega, Madison T.; Foote, Dustin J.; Nees, Nicholas; Erdmann, Jason C.; Bangs, Charles D.

    2017-01-01

    Sexual differentiation across taxa may be due to genetic sex determination (GSD) and/or temperature sex determination (TSD). In many mammals, males are heterogametic (XY); whereas females are homogametic (XX). In most birds, the opposite is the case with females being heterogametic (ZW) and males the homogametic sex (ZZ). Many reptile species lack sex chromosomes, and instead, sexual differentiation is influenced by temperature with specific temperatures promoting males or females varying across species possessing this form of sexual differentiation, although TSD has recently been shown to override GSD in Australian central beaded dragons (Pogona vitticeps). There has been speculation that Australian Brush-turkeys (Alectura lathami) exhibit TSD alone and/or in combination with GSD. Thus, we sought to determine if this species possesses sex chromosomes. Blood was collected from one sexually mature female and two sexually mature males residing at Sylvan Heights Bird Park (SHBP) and shipped for karyotype analysis. Karyotype analysis revealed that contrary to speculation, Australian Brush-turkeys possess the classic avian ZW/ZZ sex chromosomes. It remains a possibility that a biased primary sex ratio of Australian Brush-turkeys might be influenced by maternal condition prior to ovulation that result in her laying predominantly Z- or W-bearing eggs and/or sex-biased mortality due to higher sensitivity of one sex in environmental conditions. A better understanding of how maternal and extrinsic factors might differentially modulate ovulation of Z- or W-bearing eggs and hatching of developing chicks possessing ZW or ZZ sex chromosomes could be essential in conservation strategies used to save endangered members of Megapodiidae. PMID:28910392

  7. Informacioni sistemi održavanja u Vojsci Srbije i Crne Gore i okruženju / Informational systems of maintenance in the Army of Serbia and Montenegro and environment

    Directory of Open Access Journals (Sweden)

    Saša Veselinović

    2005-05-01

    Full Text Available Efikasno upravljanje sistemom održavanja moguće je samo ako vrh upravljačke strukture ima pravovremene i kvalitetne informacije o stanju sistema. Ovakve informacije moguće je obezbediti primenom odgovarajućeg automatizovanog informacionog sistema. U svetu postoje programski paketi za automatizaciju informacionog sistema održavanja pomoću kojih se vode podaci o stanju sredstava, toku održavanja, troškovima, nabavci rezervnih delova, a pojedini sistemi omogućavaju i statističko predviđanje otkaza. Informacioni sistem održavanja koji funkcioniše u Vojsci Srbije i Crne Gore je manuelan, a uspostavljen je pre uvođenja računara u operativnu upotrebu. Tokom eksploatacije sistem je više puta dograđivan i prilagođavan za automatizaciju. Aplikacije koje su trenutno u funkciji u pojedinim jedinicama nisu sistemsko rešenje već pokušaji entuzijasta da olakšaju deo aktivnosti u svom radu, a vezane su prvenstveno za izradu izveštaja. / Management of system of maintenance on effective -way is possible only if management has opportune and quality information about state of system. Providing opportune and quality information is possible only with appropriate automotive information system. In The World exist many programs for automation information systems of maintenance, -which observe a data about condition of equipments, flow of maintenance, a costs, purchasing of pans, and some of them provide statistical predicting of failures. Information system of maintenance, which functioning in Military forces of State Union of Serbia and Montenegro, is manual and established before implementation of personal computer in operative use, but through couple projects accomplished for automation. A program, which are in use, in some units, aren't system solution, then attempting group enthusiastic people to make easiest some activity in his work on making reports.

  8. Looking West: Understanding Socio-Political Allegories and Art References in Contemporary Romanian Cinema

    Directory of Open Access Journals (Sweden)

    Király Hajnal

    2016-09-01

    Full Text Available The representation of other arts in cinema can be regarded as a different semiotic system revealing what is hidden in the narrative, as a site of cultural meanings inherent to the cinematic apparatus addressing a pensive spectator, or a discourse on cinema born in the space of intermediality. In the post-1989 films of Romanian director Lucian Pintilie, painterly and sculptural references, as well as miniatures become figurations of cultural identity inside allegories about a society torn between East and West. I argue that art references are liberating these films from provincialism by transforming them into a discourse lamenting over the loss of Western, Christian and local values, endangered or forgotten in the post-communist era. In the films under analysis – An Unforgettable Summer (1994, Too Late (1996 and Tertium Non Datur (2006 – images reminding of Byzantine iconography, together with direct references and remediations of sculptures by Romanian-born Constantin Brâncuşi, participate in historico-political allegories as expressions of social crisis and the transient nature of values. They also reveal the tension between an external and internal image of Romania, the aspiration of the “other Europe” to connect with the European cultural tradition, in a complex demonstration of a “self-othering” process. I will also argue that, contrary to the existing criticism, this generalizing, allegorical tendency can also be detected in some of the films of the generation of filmmakers representing the New Romanian Cinema, for example in Radu Jude’s Aferim! (2015.1

  9. Eksplozivne materije za neosetljiva ubojna sredstva / Explosive substances for insensitive munitions

    Directory of Open Access Journals (Sweden)

    Radun Jeremić

    2005-03-01

    Full Text Available U skladu sa sve strožim zahtevima za očuvanje životne sredine i većom bezbednošću, tendencije u razvoju suvremenih ubojnih sredstava (UbS, pored povećanja pouzdanosti i efikasnosti, usmerene su i na povećanje sigurnosti pri njihovoj proizvodnji, skladištenju, manipulaciji i upotrebi. Na taj način dobijena je nova kategorija UbS, tzv. neosetljiva UbS, kod kojih je verovatnoća neželjenog aktiviranja pod dejstvom spoljnih impulsa svedena na minimum. Suština rešavanja ovog problema je primena eksplozivnih materija koje su mnogo manje osetljive na spoljne uticaje u odnosu na standardne. Osnovni zahtev koji se pri tome postavlja je da taktičko-tehničke karakteristike ostanu na nivou ili budu bolje u odnosu na postojeća UbS. U radu je ukratko objašnjen koncept razvoja neosetljivih UbS i dat pregled najznačajnijih rezultata istraživanja u oblasti eksplozivnih materija koje zadovoljavaju zahteve za primenu u neosetljivim UbS. / According to severe environment protection and safety requirements, tendencies in development of modern munitions, besides of increasing reliability and efficiency, are directed to decreasing of danger during their processing, storing, handling and operating. In that manner the new category of munitions has been obtained, named insensitive munitions, with a minimum probability of unplanned activating. The best method for solving this problem is using of explosive substances that are more insensitive according to standard ones. The main requirement is the tactical and technical characteristics stay at the level or to be better according to the existing munitions. In this paper the developing concept of insensitive munitions is shortly explained and presented a review of most important research results of explosive materials that fulfill requirements for applying in insensitive munitions.

  10. Razvoj modela vozača za upravljanje vozilom tokom pravolinijskog kretanja / Development of driver model for vehicle control during a straight line motion

    Directory of Open Access Journals (Sweden)

    Miroslav Demić

    2007-04-01

    Full Text Available Upravljanje vozilom na pravolinijskom putu spada u specijalan slučaj analize dinamičkog sistema vozač - vozilo - okruženje, jer podužno kretanje vozila podrazumeva aktivno učešće vozača u uslovima koji su definisani parametrima puta i vozila. U savremenoj literaturi postoje pokušaji modeliranja pomenutog sistema u uslovima pravolinijskog kretanja, ali, do sada, nije definisan opšteprihvaćeni model vozača. Problem se usložava činjenicom da se u razmatranje mora uzeti i veoma složeno ponašanje motora i transmisije u dinamičkim uslovima. U radu je modeliran sistem vozač - vozilo u uslovima pravolinijskog kretanja radi praćenja zadate, najčešće, promenljive brzine vozila. / To drive the vehicle on a straight line road can be put as a special case analysis of a Driver-Vehicle-Environment dynamical system, because longitudinal vehicle motion means that active driver participates in the conditions defined by road and vehicle parameters. In contemporary literature, there are some attempts of modeling the mentioned system in the case of a straight line drive, but, so far, there is no generally accepted model of a driver. It should be mentioned that the problem is more complex with fact that a very complex motor and transmission behavior must be assumed in dynamic conditions. There are some attempts of modeling the driver and vehicle in the case of straight line driving, with a goal of tracking the given, frequently variable vehicle speed.

  11. A comparative analysis of Serbian phonemes: Linear and non-linear models/Uporedna analiza fonema srpskog jezika: linearni i nelinearni modeli

    Directory of Open Access Journals (Sweden)

    Danijela D. Protić

    2014-10-01

    Full Text Available This paper presents the results of a comparative analysis of Serbian phonemes. The characteristics of vowels are quasi-periodicity and clearly visible formants. Non-vowels are short-term quasi-periodical signals having a low power excitation signal. For the purpose of this work, speech production systems were modelled with linear AR models and the corresponding non-linear models, based feed-forward neural networks with one hidden-layer. Sum squared error minimization as well as the back-propagation algorithm were used to train models. The selection of the optimal model was based on two stopping criteria: the normalized mean squares test error and the final prediction error. The Levenberg-Marquart method was used for the Hessian matrix calculation. The Optimal Brain Surgeon method was used for pruning. The generalization properties, based on the time-domain and signal spectra of outputs at hidden-layer neurons, are presented. / U radu je prikazana analiza karakteristika vokala i nevokala srpskog jezika. Vokale karakteriše kvaziperiodičnost i spektar snage signala sa dobro uočljivim formantima. Nevokale karakteriše kratkotrajna kvaziperiodičnost i mala snaga pobudnog signala. Vokali i nevokali modelovani su linearnim AR modelima i odgovarajućim nelinearnim modelima koji su generisani kao feed-forward neuronska mreža sa jednim skrivenim slojem. U procesu modelovanja korišćena je minimizacija srednje kvadratne greške sa propagacijom unazad, a kriterijum izbora optimalnog modela jeste zaustavljanje obučavanja, kada normalizovana srednja kvadratna test greška ili finalna greška predikcije dostignu minimalnu vrednost. LM metod korišćen je za proračun inverzne Hessianove matrice, a za pruning je upotrebljen Optimal Brain Surgeon. Prikazana su generalizaciona svojstva signala u vremenskom i frekvencijskom domenu, a kroskorelacionom analizom utvrđen je odnos signala na izlazima neurona skrivenog sloja.

  12. Xyce Parallel Electronic Simulator Reference Guide Version 6.4

    Energy Technology Data Exchange (ETDEWEB)

    Keiter, Eric R. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Mei, Ting [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Russo, Thomas V. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Schiek, Richard [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sholander, Peter E. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Thornquist, Heidi K. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Verley, Jason [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Baur, David Gregory [Raytheon, Albuquerque, NM (United States)

    2015-12-01

    This document is a reference guide to the Xyce Parallel Electronic Simulator, and is a companion document to the Xyce Users' Guide [1] . The focus of this document is (to the extent possible) exhaustively list device parameters, solver options, parser options, and other usage details of Xyce . This document is not intended to be a tutorial. Users who are new to circuit simulation are better served by the Xyce Users' Guide [1] . Trademarks The information herein is subject to change without notice. Copyright c 2002-2015 Sandia Corporation. All rights reserved. Xyce TM Electronic Simulator and Xyce TM are trademarks of Sandia Corporation. Portions of the Xyce TM code are: Copyright c 2002, The Regents of the University of California. Produced at the Lawrence Livermore National Laboratory. Written by Alan Hindmarsh, Allan Taylor, Radu Serban. UCRL-CODE-2002-59 All rights reserved. Orcad, Orcad Capture, PSpice and Probe are registered trademarks of Cadence Design Systems, Inc. Microsoft, Windows and Windows 7 are registered trademarks of Microsoft Corporation. Medici, DaVinci and Taurus are registered trademarks of Synopsys Corporation. Amtec and TecPlot are trademarks of Amtec Engineering, Inc. Xyce 's expression library is based on that inside Spice 3F5 developed by the EECS Department at the University of California. The EKV3 MOSFET model was developed by the EKV Team of the Electronics Laboratory-TUC of the Technical University of Crete. All other trademarks are property of their respective owners. Contacts Bug Reports (Sandia only) http://joseki.sandia.gov/bugzilla http://charleston.sandia.gov/bugzilla World Wide Web http://xyce.sandia.gov http://charleston.sandia.gov/xyce (Sandia only) Email xyce@sandia.gov (outside Sandia) xyce-sandia@sandia.gov (Sandia only)

  13. Bonding agensi za kompozitna raketna goriva / Bonding agents for composite rocket propellants

    Directory of Open Access Journals (Sweden)

    Mirjana Petrić

    2003-01-01

    Full Text Available U radu je analiziran uticaj bonding agensd na mehaničke karakteristike i viskozitet kompozitnih raketnih goriva na bazi hidroksiterminiranog polibutadiena i toluendiizocijanata, odnosno izoforondiizocijanata. Komparirana je efikasnost bonding agensd (BA različite strukture trietilentetramina (TET, tris-(2-metil aziridinil fosfin oksida (MAPO i N,N-di (2-hidroksietil-4,4-dimetilhidantoina (DHE. Efikasnost delovanja bonding agensa utvrdenaje na osnovu parametara dobijenih iz testa jednoosnog zatezanja uzoraka (σm - zatezna čvrstoća pri maksimalnoj sili, εm relativno izduženje pri maksimalnoj sili i εp - relativno izduženje pri prekidu. Mehaničke karakteristike merene su u temperaturskom području od -50°C do 50°C. Analiziran je uticaj BA na brzinu promene viskoziteta goriva. / The paper analyzes the effects of bonding agents on mechanical properties and viscosity of composite rocket propellants based on hydroxiterminated polybutadiene and toluendiizocyanate, i.e. izophorondiizocyanate. The efficiency of bonding agents (BA of different structure has been compared including triethylentetramine (TET, tris-(2-methyl azyrinidile phosphine oxide (MAPO and N, N-di (2-hydroxiethyl-4,4-dimethylhydantoine (DHE. The BA efficiency has been determined on the basis of parameters obtained by uniaxial tensile tests (σm - tensile strength at maximum force, εm - relative allongation at maximum force and εp - relative allongation at fracture. The mechanical properties have been measured at the temperature range from -50°C to 50°C. The BA effects on propellant viscosity change rates have been analyzed.

  14. Magnetic field asymmetry and high temperature magnetoresistance in single-walled carbon nanotubes

    Science.gov (United States)

    Cobden, David

    2006-03-01

    The length scales and scattering processes in the one-dimensional electron system in single-walled carbon nanotubes remain only partially understood. Measuring the magnetoresistance, in both linear and nonlinear response, is a way to investigate these processes. In disordered nanotubes with ballistic paths much shorter than the length, we observe magnetoresistance in the metallic regime which at low temperatures resembles the universal fluctuations and weak localization seen in higher dimensional metals. A parabolic magnetoresistance persists at room temperature, indicating a significant role for phase coherence and/or interactions at high temperatures. While the linear resistance of a two-terminal sample must be an even function of magnetic field B by Onsager's principle, the nonlinear resistance need not be. Importantly, the B-asymmetric nonlinear terms can in principle be used to infer the strength of electron-electron interactions in the sample [1]. We have therefore also measured in detail the lowest order B-asymmetric current contributions, with a focus on the B-linear term. This has apparently not been done before in any system. Consistent with general theory, at high temperatures the term is small and has a constant sign independent of Fermi energy. At low temperatures it grows and develops mesoscopic fluctuations. Although these result imply that interactions are involved in the transport, calculations specific to nanotubes are needed in order to extract interaction parameters. This work was done by the authors of Ref [2]. References: [1] E.L. Ivchenko and B. Spivak, Phys. Rev. B 66, 155404 (2002); [2] Jiang Wei, Michael Shimogawa, Zenghui Wang, Iuliana Radu, Robert Dormaier, and David H. Cobden, Phys. Rev. Lett. (Dec. 2005) (cond-mat/0506275).

  15. Korekcija putanje žiroskopski stabilisanog projektila primenom proporcionalne navigacije / Trajectory correction of gyroscopic stabilized projectile using proportional navigation

    Directory of Open Access Journals (Sweden)

    Danilo V. Ćuk

    2010-01-01

    Full Text Available U radu su prikazane metode korekcije putanje žiroskopski stabilisanih projektila primenom proporcionalne navigacije. Sekcija upravljanja tipa 'patka' ugrađena je na klasični projektil radi generisanja aerodinamičke sile. Efikasnost projektila sa korekcijom putanje prikazana je pomoću rezultata numeričke simulacije leta, primenom proporcionalne navigacije sa i bez kompenzacije poremećaja zbog gravitacionog i tangentnog ubrzanja. Analizirani su, takođe, uticaji početnog ugla elevacije i odstupanja ravni upravljanja od ravni praćenja cilja na promašaj projektila. Pokazano je da se precesioni oblik oscilovanja ugaonog kretanja projektila prenosi na ugaonu brzinu linije viziranja cilja koju treba filtrirati kako bi se otklonila pojava rezonantne nestabilnosti leta projektila. / This paper presents the methods of the trajectory correction of gyroscopic stabilized projectiles using different modifications of proportional navigation. The canard section is built into the conventional projectile to generate aerodynamic force. The effectiveness of the trajectory correctable projectile is shown by the results of a flight numerical simulation using proportional navigation with and without the compensation of the disturbance due to gravitational and tangent acceleration. The paper also analyzes the effects of the initial elevation angle and the deflection of the control plane from the target tracking one on the miss distance. It is shown that the precessional mode of the projectile angular motion is transferred to the line of sight rate which should be filtered to prevent the phenomenon of resonance instability of the projectile flight.

  16. Luuleaasta 1994 : parlamendi koosseis on selgunud / Barbi Pilvre

    Index Scriptorium Estoniae

    Pilvre, Barbi, 1963-

    1995-01-01

    Rannit, Aleksis. Nii näen sind ikka; Kangur, Kalju. Sõna sees olek; Traat, Mats. Koidu kätes; Rimmel, Rudolf. Setu netu; Suislepp, Harald. Köögertali kojutulek; Piir, Enno. Sunnitöölise Mekka; Üllaste, Leenart. Lind tormis; Hirv, Indrek. Taskuraamat (taskutähekerjus); Mirtem, Valev [Luhaäär, Ingvar]. Maithunad Eestis; Mirtem, Valev [Luhaäär, Ingvar]. Armuühtepühad; Mirtem, Valev [Luhaäär, Ingvar]. Tulevaas; Kurvits, Lembit. Matle laul; Lillemets, Enn. Olemise valge koer ehk Ingli kolju; Jessod, Mats [Jakobson, Mati]. Jah, luuletused; Jessod, Mats [Jakobson, Mati]. Ohjad Oti mäel; Jessod, Mats [Jakobson, Mati]. Poeetilisi prohmakaid; Ivar, Ivo. Riimiskid; Kilokalor, Kalle. Öösel näeb halvemini kui päeval; Trubetsky, Tõnu. Anarhia; Laanvee, Ervin. Jaa. Mina olen; Kuningas, Marko J. ...jääb USK, LOOTUS, ARMASTUS; Ruben, Arne. Ajakirjanik; Ollinovski, Jim [Ollino, Ott]. Luuletused; Toomik, Tõnu. 27 luuletust; Tosin, Ants. Õnnetähestik; Krüger, Urmas. Ka nii võib...; Kärner, Siim. Usseaid; Sikk, Heino. Võrokõstõlõ: poeem; Kollin, Viktor. Kodutunne; Alo, Ülo [Võsar, Ülo Alo]. Ööbikuvalgus; Sepp, Vello. Vigased pärlid; Palo, Wilhelm. Tuule-luuled; Soomets, Triin. Randmes unejanu; Soomets, Triin. Janu masinas; Ränik, Valeria. Ajast väljas; Kivi, Aita. Kalender-päevik Aita Kivi luuletustega; Maagemust, Maarika. Kaaludes kaldaid; Hiiussaar, Ann. Valgete uste taga; Kolkkanen, Imbi. Mina ja maailm; Mets, Neeme. Kesalill; Kolesnitshenko, Kaidi-Ly. Kaks silma; Kahro, Anne. Nälkjast!; Kabe, Aino. Tuulema mõtteriim. Raatma, Salme. Laululatern; Osila, Virve. Lootuse luiged; Isak, Asta. Valguse ja varjude vahel; Õunapuu, Meeli. Mööda teid ja radu

  17. Pristup uzurpacijama zemljišta na teritoriji općine Maglaj : Approach of land usurpation of municipality of Maglaj theritory

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    Faris Habibović

    2012-12-01

    Full Text Available Rad na temu „Pristup uzurpacijama zemljišta na teritoriji općine Maglaj“obrađuje postupak raspravljanja uzurpacija na teritoriji općine Maglaj uz korištenje odgovarajućih softverskih aplikacija. U okviru rada je opisan postupak povlačenja granične linije između šuma i šumskog zemljišta sa jedne strane i poljoprivrednog zemljišta sa druge strane, a potom su date karakteristike uzurpiranog zemljišta-parcela. Granična linija je na planovima povučena u AutoCAD programskom paketu, a baza podataka kao i pregledna skica za sve šumske komplekse izrađena koristeći softversku aplikaciju ArcGIS. U radu su obrađene tri katastarske općine (k.o. Ošve, k.o. Moševac i k.o. Ravna. : This paper deals with the process of discussing land usurpation in the territory of Maglaj municipality using appropriate software applications. Drawing procedure of the boundary line between the forest (forest land and farmland is described. Later are given characteristics of usurped land - lots. Boundary line is drawn on the plans in AutoCAD software, and the database and review drafts of all forest complexes have been made using ArcGIS software application. In this paper three cadastral municipalities are processed (cadastral municipality Ošve, cadastral municipality Moševac and cadastral municipality Ravna.

  18. Signal transduction molecule patterns indicating potential glioblastoma therapy approaches

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    Cruceru ML

    2013-11-01

    Full Text Available Maria Linda Cruceru,1 Ana-Maria Enciu,1,2,7 Adrian Claudiu Popa,1,3 Radu Albulescu,2,4,7 Monica Neagu,2,7 Cristiana Pistol Tanase,2,7 Stefan N Constantinescu5–7 1Carol Davila University of Medicine and Pharmacy, Department of Cellular and Molecular Medicine, Bucharest, Romania; 2Victor Babes National Institute of Pathology, Bucharest, Romania; 3Army Centre for Medical Research, Bucharest, Romania; 4National Institute for Chemical Pharmaceutical R&D, Bucharest, Romania; 5de Duve Institute, Université Catholique de Louvain, Brussels, Belgium; 6Ludwig Institute for Cancer Research, Brussels, Belgium; 7Operational Sectorial Programme for Competitive Economic Growth Canbioprot at Victor Babes National Institute of Pathology, Bucharest, Romania Purpose: The expression of an array of signaling molecules, along with the assessment of real-time cell proliferation, has been performed in U87 glioma cell line and in patients’ glioblastoma established cell cultures in order to provide a better understanding of cellular and molecular events involved in glioblastoma pathogenesis. Experimental therapy was performed using a phosphatydylinositol-3´-kinase (PI3K inhibitor. Patients and methods: xMAP technology was employed to assess expression levels of several signal transduction molecules and real-time xCELLigence platform for cell behavior. Results: PI3K inhibition induced the most significant effects on global signaling pathways in patient-derived cell cultures, especially on members of the mitogen-activated protein-kinase family, P70S6 serine-threonine kinase, and cAMP response element-binding protein expression and further prevented tumor cell proliferation. Conclusion: The PI3K pathway might be a prime target for glioblastoma treatment. Keywords: personalized medicine, PI3K inhibitor, targeted therapy, xCELLigence, xMAP analysis

  19. Metodologija postavljanja diferencijalnih jednačina pri istraživanju dinamičkih parametara konstrukcije lansirne rampe na vozilu točkašu / Methodology make of differential equations at investigation of dynamic parameters of constructions of launcher on vehicle

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    Vlado P. Đurković

    2007-07-01

    Full Text Available U radu se određuju optimalni parametri konstrukcije lansirne rampe: položaj tačke vešanja hidrocilindra na rampi, dužina i materijal rampe, koeficijent viskoznog trenja ulja u hidrocilindru, koeficijent krutosti lansirne rampe i hidrocilindra, poprečni presek rampe, itd. Radi toga postavlja se mehanički model sa tri stepena slobode kretanja i odgovarajući model u vidu sistema od tri nelinearne diferencijalne jednačine drugog reda. Numeričkom analizom dobijenog matematičkog modela (primenom programskog jezika Compaq Visual Fortran, Version 6.5 dolazi se do optimalnosti pojedinih parametara. Dobijeni rezultati, predstavljeni u grafičkoj formi, mogu da budu veoma korisni projektantima raketnih lansera, kako stabilnih, tako i mobilnih, pri razvoju novih konstrukcija i modifikaciji postojećih. / This paper determines optimal construction parametrics of a missile launcher place of hydro-cylinder on launcher, length and material of ramp of launcher coefficient of the viscosity of friction oil in hydro-cylinder, coefficient of stiffness of launcher and hydro-cylinder, cross-section of launcher etc. In this purpose appointment mechanical model with three degrees of freedom motion and analogous model of system of three nonlinear differential equation second order. Numerical analysis obtained mathematical model (programming with language Compaq Visual Fortran, Version 6.5 coming to optimal parameters. Obtained results that are presented in graphical shapes can be very useful for designing stable and mobile missile launchers, both for development of new constructions and modification of existing structures.

  20. Merenje torzionih oscilacija pomoću mernih traka / Measurement of torsional vibrations by using strain gages

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    Dragan Trifković

    2005-05-01

    Full Text Available U ovom radu prikazan je metod merenja torzionih oscilacija mehaničkih sistema na osnovu merenja torzionog napona pomoću mernih traka. Ovaj metod naročito je pogodan za proveru nivoa naprezanja elemenata sistema, koji prenose promenljive obrtne momente i torziono osciluju. Osim toga, mogu se određivati i kritične brzine obrtanja elemenata sistema, pri kojima se javljaju rezonantna naprezanja i otkazi sistema, kao što su: pojačana buka, trošenje zupčanika, zamor materijala, oštećenja i lomovi vratila, spojnica i si. Predložen je merni lanac u kojem centralno mesto zauzima suvremeni mobilni merni sistem Spider 8, koji omogućava merenje, obradu i prikaz rezultata pomoću računara. / In this work the measuring method of torsion vibrations is presented according to the measurement of torsion stress using strain gages. This method is particularly suitable in checking the system elements strain level that transfers changeable torsion moments and oscillate torsionally. Besides that, the system elements critical velocity rotation can be estimated, folio-wed by the resonant strain and problems in the function of that system such as: amplified noise, -wearing-out of gears, fatigue crack, damage and break of shafts and junctions etc. The measuring chain is proposed in -which the central part is a contemporary mobile system Spider 8, -which enables measurement, processing and displays measured results on a computer.

  1. Antioxidants and Antioxidant Capacity of Human Milk / Antioksidansi i antioksidativni kapacitet humanog mleka

    Directory of Open Access Journals (Sweden)

    Živković Jelena

    2015-06-01

    Full Text Available Mleko sadrži mnoge enzimske i neenzimske antioksidanse koji verovatno utiču na vitalnu antioksidativnu zaštitu dece u ranoj fazi života od razvoja komplikacija izazvanih slobodnim kiseoničnim radikalima. Enzimi koji se prirodno nalaze u mleku imaju ključnu ulogu u regulaciji laktogeneze, uključujući aktivnu involuciju mlečnih žlezdi. Štaviše, oni su esencijalni činioci antioksidativnog procesa i urođenog imunog sistema mleka. Među antioksidativnim enzimima u humanom mleku određeni su superoksid dismutaza, katalaza i glutation peroksidaza koja sadrži selen. Uglavnom je sadržaj enzima u kolostrumu veći od sadržaja u odgovarajućem zrelom mleku. Od lipofilnih antioksidanasa u humanom mleku, od najvećeg značaja su tokoferoli, karotenoidi i vitamin A. Sadržaj ovih komponenti je najveći u kolostrumu, koji zatim opada tokom rane laktacije, bez obzira na činjenicu da sadržaj masti raste. Svi aktivni antioksidansi u humanom mleku još uvek nisu poznati. U ovom radu su prikazana najznačajnija saznanja o enzimskim i neenzimskim antioksidansima kao i o antioksidativnom kapacitetu humanog mleka. Sinergističko delovanje pojedinih antioksidanasa pomaže u eliminaciji slobodnih radikala kod novorođenčadi. S obzirom da mleko sadrži mnoštvo antioksidanasa, mnoge reakcije su moguće, pa je teško odrediti precizan doprinos i funkciju svakog antioksidansa. Pored kvalitativne i kvanititativne analize antioksidanasa humanog mleka, određivanje ukupnog antioksidativnog kapaciteta bi mogao da bude koristan metod ispitivanja ovog dinamičnog, složenog fluida

  2. AES i ARM procesori

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    Danijela D. Protić

    2013-12-01

    Full Text Available Potreba za zaštitom informacija dovodi do velikih problema u izradi prenosivih uređaja kojima su limitirani snaga, memorija i energija. Ukoliko se takvim uređajima dodaju koprocesori, koji treba da obavljaju funkcije kriptozaštite, njihove se dimenzije povećavaju, pojavljuje se nefleksibilnost pa cena uređaja raste i do nekoliko puta. Na drugoj strani, algoritmi za zaštitu podataka su često memorijski zahtevni, a zbog velikog broja operacija koje je potrebno izvršavati u procesima šifrovanja i dešifrovanja, koprocesori često uspore rad osnovnog procesora. Za jedan od standarda za kriptozaštitu, AES, NIST je prihvatio Rijndaelov blokovski algoritam sa dužinom ulaznog i izlaznog bloka od 128 b, i dužinama šifarskog ključa od 128 b, 192 b i 256 b. Zbog karakteristika male potrošnje, 32-bitske arhitekture i brzog izvršavanja instrukcija, ARM procesori mogu da realizuju kriptozaštitu podataka, između ostalog i AES-om, a da ne opterete glavne procese u sistemima u kojima se koriste. Tehnologija ARM-a zaštićena je kao intelektualna svojina, pa je veliki broj proizvođača koristi za razvoj sopstvenih proizvoda, što je rezultovalo činjenicom da je u svetu proizvedeno preko 2 milijarde čipova koji su bazirani na ovoj tehnologiji. U radu su prikazane mogućnosti za poboljšanja u izvršenju algoritma AES primenom najnovijih verzija ARM procesora.

  3. Momentul 23 August 1944 ca act de voinţă al elitelor (August 23, 1944 as an act of elites’ will

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    Sabin DRĂGULIN

    2014-09-01

    Full Text Available The marking of 70 years since the what was called, by the Communist regime, the "armed insurrection for liberation of Romania under the fascist yoke" consisted in the sixteenth event of the project After 25 years. Communism in Eastern Europe, developed by the Faculty of Political and Administrative Sciences from the University "Petre Andrei" of Iaşi, the Institute for the Study of Ideologies and the Polis Magazine. Organized on the day of August 23, the debate "August 23 after 70 years" has brought together historians, Political scientist and enthusiasts of these areas of research. Among the participants were present: researcher Mioara Anton, Professor PhD. Ion Agrigoroaei, Professor PhD. Cătălin Turliuc, historian Dorin Dobrincu, Professor PhD. Doru Tompea, Professor PhD. Daniel Şandru and Professor PhD. Sorin Bocancea, the project coordinator. During the opening of the event, Professor PhD. Doru Tompea read the message sent by the Royal House of Romania to the organizers and participants. Apart from those in the Senate Hall of the University "Petre Andrei" of Iaşi, were also present at the debate, through the interventions they sent and who were presented by Professor PhD. Daniel Şandru: Associate Professor PhD. Radu Vancu (University "Lucian Blaga” of Sibiu, Associate Professor PhD. Sabin Drăgulin (Christian University "Dimitrie Cantemir" of Bucharest and Lecturer PhD. Emanuel Copilaş (West University of Timişoara. Below, we present you a selection of the most important interventions.

  4. 23 august 1944 – există istorie dincolo de politică? (August 23, 1944 – there is history beyond politics?

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    Emanuel COPILAŞ

    2014-09-01

    Full Text Available The marking of 70 years since the what was called, by the Communist regime, the "armed insurrection for liberation of Romania under the fascist yoke" consisted in the sixteenth event of the project After 25 years. Communism in Eastern Europe, developed by the Faculty of Political and Administrative Sciences from the University "Petre Andrei" of Iaşi, the Institute for the Study of Ideologies and the Polis Magazine. Organized on the day of August 23, the debate "August 23 after 70 years" has brought together historians, Political scientist and enthusiasts of these areas of research. Among the participants were present: researcher Mioara Anton, Professor PhD. Ion Agrigoroaei, Professor PhD. Cătălin Turliuc, historian Dorin Dobrincu, Professor PhD. Doru Tompea, Professor PhD. Daniel Şandru and Professor PhD. Sorin Bocancea, the project coordinator. During the opening of the event, Professor PhD. Doru Tompea read the message sent by the Royal House of Romania to the organizers and participants. Apart from those in the Senate Hall of the University "Petre Andrei" of Iaşi, were also present at the debate, through the interventions they sent and who were presented by Professor PhD. Daniel Şandru: Associate Professor PhD. Radu Vancu (University "Lucian Blaga” of Sibiu, Associate Professor PhD. Sabin Drăgulin (Christian University "Dimitrie Cantemir" of Bucharest and Lecturer PhD. Emanuel Copilaş (West University of Timişoara. Below, we present you a selection of the most important interventions.

  5. 23 august. Despre sufletul nemuritor al comunismului (August 23. About the eternal soul of communism

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    Radu VANCU

    2014-09-01

    Full Text Available The marking of 70 years since the what was called, by the Communist regime, the "armed insurrection for liberation of Romania under the fascist yoke" consisted in the sixteenth event of the project After 25 years. Communism in Eastern Europe, developed by the Faculty of Political and Administrative Sciences from the University "Petre Andrei" of Iaşi, the Institute for the Study of Ideologies and the Polis Magazine. Organized on the day of August 23, the debate "August 23 after 70 years" has brought together historians, Political scientist and enthusiasts of these areas of research. Among the participants were present: researcher Mioara Anton, Professor PhD. Ion Agrigoroaei, Professor PhD. Cătălin Turliuc, historian Dorin Dobrincu, Professor PhD. Doru Tompea, Professor PhD. Daniel Şandru and Professor PhD. Sorin Bocancea, the project coordinator. During the opening of the event, Professor PhD. Doru Tompea read the message sent by the Royal House of Romania to the organizers and participants. Apart from those in the Senate Hall of the University "Petre Andrei" of Iaşi, were also present at the debate, through the interventions they sent and who were presented by Professor PhD. Daniel Şandru: Associate Professor PhD. Radu Vancu (University "Lucian Blaga” of Sibiu, Associate Professor PhD. Sabin Drăgulin (Christian University "Dimitrie Cantemir" of Bucharest and Lecturer PhD. Emanuel Copilaş (West University of Timişoara. Below, we present you a selection of the most important interventions.

  6. Ipostazele lui 23 august 1944 (Hypostases of August 23, 1944

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    Mioara ANTON

    2014-09-01

    Full Text Available he marking of 70 years since the what was called, by the Communist regime, the "armed insurrection for liberation of Romania under the fascist yoke" consisted in the sixteenth event of the project After 25 years. Communism in Eastern Europe, developed by the Faculty of Political and Administrative Sciences from the University "Petre Andrei" of Iaşi, the Institute for the Study of Ideologies and the Polis Magazine. Organized on the day of August 23, the debate "August 23 after 70 years" has brought together historians, Political scientist and enthusiasts of these areas of research. Among the participants were present: researcher Mioara Anton, Professor PhD. Ion Agrigoroaei, Professor PhD. Cătălin Turliuc, historian Dorin Dobrincu, Professor PhD. Doru Tompea, Professor PhD. Daniel Şandru and Professor PhD. Sorin Bocancea, the project coordinator. During the opening of the event, Professor PhD. Doru Tompea read the message sent by the Royal House of Romania to the organizers and participants. Apart from those in the Senate Hall of the University "Petre Andrei" of Iaşi, were also present at the debate, through the interventions they sent and who were presented by Professor PhD. Daniel Şandru: Associate Professor PhD. Radu Vancu (University "Lucian Blaga” of Sibiu, Associate Professor PhD. Sabin Drăgulin (Christian University "Dimitrie Cantemir" of Bucharest and Lecturer PhD. Emanuel Copilaş (West University of Timişoara. Below, we present you a selection of the most important interventions.

  7. Chaotic lensing around boson stars and Kerr black holes with scalar hair

    Science.gov (United States)

    Cunha, P. V. P.; Grover, J.; Herdeiro, C.; Radu, E.; Rúnarsson, H.; Wittig, A.

    2016-11-01

    In a recent paper [1 P. V. P. Cunha, C. A. R. Herdeiro, E. Radu, and H. F. Runarsson, Phys. Rev. Lett. 115, 211102 (2015).], it was shown that the lensing of light around rotating boson stars and Kerr black holes with scalar hair can exhibit chaotic patterns. Since no separation of variables is known (or expected) for geodesic motion on these backgrounds, we examine the 2D effective potentials for photon trajectories, to obtain a deeper understanding of this phenomenon. We find that the emergence of stable light rings on the background spacetimes allows the formation of "pockets" in one of the effective potentials, for open sets of impact parameters, leading to an effective trapping of some trajectories, dubbed "quasibound orbits." We conclude that pocket formation induces chaotic scattering, although not all chaotic orbits are associated to pockets. These and other features are illustrated in a gallery of examples, obtained with a new ray-tracing code, pyhole, which includes tools for a simple, simultaneous visualization of the effective potential, together with the spacetime trajectory, for any given point in a lensing image. An analysis of photon orbits allows us to further establish a positive correlation between photon orbits in chaotic regions and those with more than one turning point in the radial direction; we recall that the latter is not possible around Kerr black holes. Moreover, we observe that the existence of several light rings around a horizon (several fundamental orbits, including a stable one), is a central ingredient for the existence of multiple shadows of a single hairy black hole. We also exhibit the lensing and shadows by Kerr black holes with scalar hair, observed away from the equatorial plane, obtained with pyhole.

  8. The role of vitamin C in pushing back the boundaries of skin aging: an ultrasonographic approach

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    Crisan D

    2015-09-01

    Full Text Available Diana Crisan,1 Iulia Roman,2 Maria Crisan,2 Karin Scharffetter-Kochanek,1 Radu Badea31Clinic of Dermatology and Allergology, University Clinic Ulm, Ulm, Germany; 2Clinic of Dermatology and Venereology, 3Department of Clinical Imaging Ultrasound, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaBackground: Imagistic methods stand as modern, non-invasive, and objective means of assessing the impact of topical cutaneous therapies.Objective: This study focuses on the evaluation, by high-frequency ultrasound, of the cutaneous changes induced by topical use of a vitamin C complex at facial level.Methods: A vitamin C-based solution/Placebo moisturizer cream was applied at facial level of 60 healthy female subjects according to a predetermined protocol. Ultrasonographic images (Dermascan C, 20 MHz were taken from zygomatic level initially, at 40 and 60 days after therapy. The following parameters were assessed for every subject: thickness of the epidermis and dermis (mm, the number of low (LEP, medium (MEP, high echogenic pixels (HEP, and the number of LEP in the upper dermis/lower dermis (LEPs/LEPi.Results: LEP decreased significantly in all age categories during and after therapy, but especially in the first 2 age intervals, up to the age of 50 (P=0.0001. MEP and HEP, pixel categories that quantify protein synthesis also had an age-dependent evolution in the study, increasing significantly in all age categories but most of all in the first age interval (P=0.002. Our ultrasonographic data suggest that collagen synthesis increased significantly after topical vitamin C therapy, and is responsible for the increase in MEP and HEP and consequent decrease of the LEP.Conclusion: Our study shows that topically applied vitamin C is highly efficient as a rejuvenation therapy, inducing significant collagen synthesis in all age groups with minimal side effects.Keywords: ascorbic acid, rejuvenation, ultrasound, collagen synthesis

  9. All Roads Lead to Guča: Modes of Representing Serbia and Serbs during the Guča Trumpet Festival

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    Marija Krstić

    2016-02-01

    Full Text Available SVI PUTEVI VODE U GUČU: NAČINI REPREZENTACIJE SRBIJE I SRBA TOKOM FESTIVALA TRUBAČA U GUČI U radu će, kroz analizu fotografija dostupnih na internetu, biti reči o Saboru trubača u Dragačevu, poznatijem kao festival u Guči. Dragačevski sabor trubača je jedan od najpoznatijih muzičkih festivala u Srbiji i jedan od najpoznatijih festivala trubačkih okrestara na svetu. Festival se održava jednom godišnje od 1961. godine, u selu Guča u Zapadnoj Srbiji. Od 1962. godine festival je otvoren za učesnike iz drugih delova Srbije, a 1963. su prvi put učestvovali romski orkestri. Od tada, romski muzičari su ostali među najboljim trubačima na takmičenjima. Ipak, tokom poslednjih 50 godina, festival je uvek konceptualizovan i predstavljan kao nosilac srpske narodne tradicije i kulture. U istraživanju ću se koristiti fotografijama posetilaca festivala koje su dostupne na jednom od sajtova posvećenih Guči, www.guca.rs, kako bih ispitala kako fotografije sa festivala vizuelno predstavljaju Srbe. Osnovni cilj rada je da ukaže na to kako je festival u Guči našao svoje mesto u modernoj Srbiji uprkos svojoj ruralnoj, narodnoj, varvarskoj i ponekad nacionalističkoj medijskoj reprezentaciji.

  10. Vizuelizacija 3D modela geopodataka i njihova primjena : Visualisation of the 3D geodata models and their application

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    Mirko Borisov

    2014-12-01

    Full Text Available U radu se opisuju 3D modeli geopodataka i njihova primjena. Na geodetskim planovima i topografskim kartama najčešće se primjenjuju metode prikaza terena (reljefa pomoću kota i izohipsi. Međutim, sa pojavom novih tehnologija mijenja se način vizualizacije i naglašava koncept 3D modela geopodataka. Pritom, koriste se različiti pojmovi: digitalni model visina (DMV, digitalni model terena (DMT, digitalni model površi (DMP i drugo. Infrastruktura i 3D modeli geopodataka su standardizovani, ali se vizualizacija i detaljnost sadržaja mijenja i usklađuje prema namjeni i razmjeri prikaza. Primjena 3D modela geopodataka u digitalnom obliku (raster ili vektor postaje sve više aktuelna i putem interneta. Zato je važno razlikovati navedene pojmove i odlike 3D modela geopodataka kao i mogućnosti njihove primjene. : This paper describes the 3D geodata models and their application. On geodetic plans and topographic maps commonly applied methods of terrain (relief by spots elevation and contour lines. However, with the advent of new technologies the way of the visualisation is changing and highlights the concept 3D geodata model. Namely, there are different concepts: digital elevation model (DEM, digital terrain model (DTM, digital surface model (DSP and so on. Infrastructure and 3D geodata models are standardized, while the visualization and details of information change and adjust the needs and aspect ratio display. Application of 3D geodata models in digital format (raster or vector is becoming increasingly topical over the internet. Therefore, it is important to distinguish between certain concepts and features of 3D geodata models and the possibility of their application.

  11. Upravljanje rizicima u proizvodnji naoružanja i vojne opreme/Risk management in the production of weapons and military equipment

    Directory of Open Access Journals (Sweden)

    Danko M. Jovanović

    2010-01-01

    Full Text Available U radu je objašnjen pojam rizika i upravljanja rizikom u specifičnim uslovima proizvodnje naoružanja i vojne opreme (NVO. Analizirane su glavne karakteristike eksplozivnih materija, koje izazivaju najveće rizike u proizvodnji NVO. Razrađene su faze u procesu upravljanja rizicima, kao i metode upravljanja rizikom. Zaključeno je da je pri upravljanju rizicima presudan uticaj menadžmenta kompanije da rizike dovede u prihvatljive okvire. (The paper discusses the notions of risk and risk management in specific conditions of the production of weapons and military equipment (MWE. The main characteristics of explosive materials, the most frequent risk sources in the production of MWE, have been analyzed as well as the phases in the risk management process and the risk management methods. Introduction Risk is nowadays considered as a serious economical, public and political issue. Risk management enables identification and control of uncertainty varieties in order to avoid or reduce them by offering alternative activity routes to decision-makers. The production and application of modern WME involves handling hazardous materials and imposes needs for safety measures. Particularities of the WME production Explosive materials for military goods cause the greatest risks in production and charging as well as in storage and use. They consist of explosives, gunpowder, rocket propellants (solid and liquid, liquid oxidizers of rocket propellants and pyrotechnic mixtures. Reducing risks in production to an acceptable level The key of successful risk management is a clear definition of a risk assessing domain s well as the identification and characterization of potential threats. The risk management process consists of the following phases: risk identification, risk analysis, risk assessment, procedures in risk occurrences and the risk control of required measures. Conclusion The management of each company has a key role in risk management, reducing risks to

  12. Ugovor o zajedničkom pothvatu (joint venture u naftnom sektoru

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    Ratko Brnabić

    2014-10-01

    Full Text Available U radu se raspravlja o ugovoru o zajedničkom pothvatu koji je praktički neizostavan dio svake ozbiljnije operacije istraživanja, a potom i iskorištavanja ugljikovodika (proizvodnja naftnih derivata. Riječ je o skupom pothvatu uz koji se vezuju brojni rizici pa trgovci u tom području žele sklapanjem takvog ugovora zadržati mogućnost (izglede da ostvare dobit, ali pritom podijele rizik. U prvom dijelu rada daje se prikaz bitnih značajki zajedničkog pothvata s posebnim osvrtom na područje iskorištavanja ugljikovodika. S obzirom na okolnost da se za potrebe zajedničkog pothvata često osniva trgovačko društvo kapitala, raspravlja se o pravnim odnosima članova tog društva međusobno te prema upravi društva. Skreće se pozornost i na razlike u značenju pojma joint venture posebice u američkom i hrvatskom pravu što može izazvati ozbiljne pravne učinke ako ortaci nemaju sjedište u istoj državi. Nakon toga, obrađuju se bitna pitanja koja ugovorne strane neizostavno moraju urediti da bi se izbjegli sudski sporovi. To su, primjerice, pitanje područja istraživanja, pravni položaj operatora, sredstva osiguranja, standard kvalitete pri obavljanju poslova, pravo na informiranje i nadzor te pitanje sustava rješavanja sukoba u ortaštvu. U zaključku se iznose rezultati istraživanja te se upućuje na moguća rješenja za otvorena pitanja uređenja međusobnog odnosa ortaka u zajedničkom pothvatu.

  13. Primjena bespilotnih letjelica u geodeziji na primjeru aerofotogrametrijskog sistema SenseFly eBee : Application of unmanned aerial vehicles in geodesy on the example of aerial photogrammetric system SenseFly eBee

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    Amel Žilić

    2015-12-01

    Full Text Available U posljednjih nekoliko godina razvija se potpuno nova metoda snimanja Zemljine površine u svrhu premjera zemljišta i objekata. Koristeći bespilotne letjelice, omogućeno je snimanje većih površina u vrlo kratkom vremenskom roku s visokom tačnošću. Iako još uvijek postoje mnogobrojne nejasnoće, neminovno je da ova metoda predstavlja budućnost u geodeziji i njenim oblastima. U ovom radu opisana je metoda snimanja bespilotnom letjelicom SenseFly eBee i način dobivanja oblaka tačaka, digitalnog modela reljefa i digitalnog ortofoto plana. Implementiranjem standarda NSSDA za ocjenu prostornih podataka zaključeno je da tačnost rezultata zavisi od rezolucije snimanja, konfiguracije terena i vremenskih uslova. : During the last few years a completely new method for land and object surveying was devloped. Using unmanned aerial vehicle, it is possible to survey a large areas in very short period of time with high accuraccy. Although there are still many uncertainties, it is inevitable that this method represents the future in geodesy and its areas. This paper defines a method for land surveying using SenseFly eBee drone and proccess of creating point cloud, digital model of relief and digital ortofoto map. Using NSSDA standard for spatial data accuraccy on drone products, it was concluded that accuraccy of given results depends on the ground resolution, terrain relief and weather conditions.

  14. Projektovanje geoinformacionog sistema za potrebe elektrodistributivnog preduzeća ''Elektro-Bijeljina'' u Bijeljini : Projecting of geoinformation system in service of electro-distributive firm ''Elektro-Bijeljina'' in Bijeljina

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    Zoran Perić

    2011-03-01

    Full Text Available U radu je opisani relevantni aspekti za razvoj i primjenu geoinformacionog sistema (GIS u elektrodistributivnom preduzeću ''Elektro-Bijeljina'' u Bijeljini. U kontekstu izrade projekta GIS-a izvršeno je poređenje pojedinih segmenata poslovanja interesantnih za njegovu primjenu. Razrađen je pristup projektovanja geoinformacionog sistema kroz sagledavanje konkretnih problema vezanih za nedostatak međusobne interakcije uposlenika u smislu kvalitetne međusobne komunikacije, pravovremenog informisanja i izvršavanja kancelarijskih i terenskih zadataka. Obzirom da nepravovremena i/ili netačna informacija može dovesti do usporavanja ili potpunog zaustavljanja određene poslovne procedure, za realizaciju projekta GIS-a su ovi problemi prepoznati kao glavni izazov i slabost koju ovakav sistem treba reducirati. : In this paper possibility of development and use of geo/information system (GIS was described in the service of electro distributive firm “Elektro-Bijeljina” in Bijeljina. In the context of creating the project, from an economic aspect, certain segments of business were compared, especially those in which space information system can be utilized. Problems related to mutual interaction of employees were analyzed, such as a lack of qualitative mutual communication, timely informing and accomplishing office and field assignments. Considering the fact that wrong or ill-timed information can cause a slowdown or a complete block of a certain procedure, project GIS finds these problems as the main challenge, and disadvantage that needs to be reduced.

  15. Preslikavanje parametara kvaliteta usluga na protokole ATM mreža / Quality of service mapping to ATM network protocols

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    Milojko Jevtović

    2005-11-01

    Full Text Available Preslikavanje parametara kvaliteta usluga (Quality of Service - QoS jedan je od bitnih elemenata u koncepciji ATM (Asynchronous Transfer Mode širokopojasnih mreža. U radu su opisani parametri QoS-a (verovatnoće pogrešnih ramova i ćelija, propusni opseg, kašnjenje ćelija, varijacija kašnjenja koji se preslikavaju na protokole ATM mreža. Preslikavanje se izvodi između korisničkog i aplikacionog QoS-a, a aplikacioni QoS se preslikava na QoS prenosa i komutacije, odnosno na ATM protokole, tzv. protokole ATM adaptacionog sloja i, konačno, preslikava se (mapira na ATM mrežne performanse (ATM sloj. Analiza procesa preslikavanja parametara kvaliteta usluga značajna je sa stanovišta korisnika usluga ATM mreža pri izboru klasa usluga koje će koristiti u komunikaciji preko date ATM mreže. / Quality of service mapping is one of the crucial elements in ATM concept of wide networks. In this paper QoS parameters mapping to ATM network protocols are described. Mapping is made between QoS user and QoS application, and application QoS is mapped to QoS transfer and commutation i.e. to ATM protocols - ATM adaptation layer protocols and finally it is mapped to ATM network performances. Analysis of this QoS mapping parameters process is very important for ATM users when they are choosing classes of service that can be used in communication process through ATM network.

  16. Analiza primene IMM algoritma za praćenje manevrišućih ciljeva / Analysis of IMM algorithm for maneuvering target tracking

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    Zvonko Radosavljević

    2005-05-01

    Full Text Available U radu je analizirana primena IMM algoritma sa tri modela Kalmanovih filtara, za praćenje cilja pomoću osmatračkog radara. Prvi Kalmanov filtar podešen je da prati ciljeve koji se kreću po pravolinijskoj trajektoriji bez ubrzanja, drugi prati ciljeve koji se kreću ubrzano i vrše blag manevar, a treći je namenjen za praćenje ciljeva koji se kreću ubrzano i vrše oštar manevar. Dat je opis algoritma kao i vrednosti odgovarajućih parametara i matrica prelaza za Kalmanove filtre, kao i uporedna analiza algoritma u odnosu na standardan Kalmanov filtar šestog reda. Prikazani rezultati srednje kvadratne greške praćenja po x i у koordinati pokazuju opravdanost izbora predložene metode praćenja. / This paper considers comparative analysis the problem of maneuvering target tracking to IMM algorithm with 3 standard Kalman filters and same standard Kalman filter 6. order, using data from TWS radar. The first Kalman filter from IMM algorithms is tuned for tracking of target moving along the rectilinear trajectory -without acceleration, the second tracks the targets with acceleration and gentle maneuver, and the third Kalman filter tracks the target with acceleration and sharp maneuver. The mathematical model of algorithm and values of appropriate parameters and Kalman filter matrices, are presented. The results of RMSE of tracking in x and у coordinates, show the validity of the proposed method.

  17. Strukturna analiza složenih planetarnih prenosnika snage / Structural analysis of compound planetary gear trains

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    Slavko Muždeka

    2005-03-01

    Full Text Available Određivanje osnovnih kinematičkih i dinamičkih karakteristika složenih planetarnih prenosnika je složen proces za koji je razvijeno više analitičkih, grafičkih i grafoanalitičkih metoda. U radu je prikazan način određivanja prenosnog odnosa, opterećenja elemenata i tokova snage za planetarni red sa spoljašnjim i unutrašnjim ozubljenjem preko polužne analogije i primene strukturnog (Wolfovog simbola. Polužna analogija definisana je i za planetarni red sa spoljašnjim ozubljenjem, za koji je, takođe, definisan strukturni simbol. Definisani strukturni simboli iskorišćeni su za definisanje strukture prenosnika tipa Ravigneaux. Primena strukturne šeme za analizu karakteristika složenih planetarnih prenosnika ilustrovana je kroz analizu određenih funkcionalnih stanja planetarnih menjačkih prenosnika. Posebno je definisana mogućnost analize blokiranih stanja planetarnih menjačkih prenosnika. / Determination of basic cinematic and dynamic characteristics of compound planetary gear trains is complex process. Therefore there are many analytical, graphical and graphic-analytical methods. This paper presents method of determination gear ratios, loads and power flows for planetary gear set with the sun and ring gear by lever analogy with the application of Wolfs structural symbol. The lever analogy and structural symbols are also defined for the planetary gear set with two sun gears. Defined structural symbols are employed for definition of Ravigneaux gear structure. Application of structural schemes for an analysis of compound planetary gear trains is illustrated through analysis of certain planetary gearboxes functional state. The possibility of analysis of blocked compound planetary gear train is defined too.

  18. Migracija dizel goriva izlivenog u slojeve zemljišta / Migration of diesel fuel spilled in subsurface layers of soil

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    Mladen Vuruna

    2005-09-01

    Full Text Available U radu su prikazane osnovne fizičko-hemijske karakteristike dizel goriva i zemljišta. Objašnjena je migracija izlivenog naftnog zagađivača kroz vertikalni profil zemljišta. U eksperimentalnom delu ispitivane su koncentracije dizel goriva i relativne koncentracije n-alkana u površinskim slojevima peska, u koje gorivo dospeva kao posledica akcidentnog izlivanja. Utvrđeno je da se koncentracije dizel goriva menjaju sa vremenom nakon izlivanja u svim ispitivanim slojevima. Takođe, utvrđeno je da se dizel gorivo, kao potencijalni zagađivač, u prvih šest nedelja, uglavnom, zadržava u površinskom sloju dubine 30 cm, a objašnjene su i mogućnosti sanacije zagađenog zemljišta. / The basic physical and chemical properties of both diesel fuel and soil have been given in this article and oil pollutants migration through vertical soil profile have been explained as well. In the experimental part of the paper both the concentrations of diesel fuel and relative concentrations of n-alkynes spilled in sandy soil by accident have been investigated. It has been proven that the concentrations of diesel fuel have changed in all layers of soil depending on the time after spill. Diesel fuel as possible pollutant has been retained 30 cm deep in sandy soil during six weeks after spill. Finally, cleanup techniques of polluted soil have been explained.

  19. Eksperimentalno ispitivanje aerodinamičkih karakteristika modela laserski vođene bombe / Experimental investigation of aerodynamic characteristics of the laser guided bomb model

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    Dijana Damljanović

    2005-09-01

    Full Text Available U radu su prikazani rezultati merenja aerodinamičkih sila i momenata, kao i vizualizacija strujanja u graničnom sloju na krilima i krmilima modela laserski vođene bombe. Ispitivanje je izvršeno u aerotunelu T-38. Analiziranje uticaj rastojanja vrha konusa tela, u odnosu na sekciju krmila, na aerodinamičke karakteristike modela za dva Mahova broja M∞ = 0,8 i 0,9 i otklon krmila δ=15°. Normalne sile koje se javljaju na modelu i krmilu merene su unutrašnjim aerovagama. Dobijeni rezultati merenja normalne sile na modelu i posebno na krmilu povezani su sa rezultatima vizualizacije strujanja metodom uljnih premaza. Priložene fotografije vizualizacije strujanja ilustruju promene strujanja oko modela i potvrđuju rezultate aerodinamičkih merenja. / Aerodynamic test results and boundary layer flow visualization on the wings and fins of laser guided bomb model are presented in this article. Test was performed in the T-38 wind tunnel. Influence of fin position relative to conic top of the model on aerodynamic characteristics was analyzed. Analysis was performed on aerodynamic characteristics of the model for two Mach numbers M∞ = 0,8 and 0,9 and fin deflection δ=15°. Normal forces present on the model and fin were measured by internal strain gauge balances. Obtained test results of normal force on the model and especially on the fin were associated with flow visualization results, which were performed by oil emulsion method. Presented images of flow visualization show changes of the flow around the model and confirm the results of the aerodynamic measurements.

  20. Analiza rezultata određivanja sadržaja stabilizatora u prirodno starenim barutima / Content of stabilizer determination results analysis of naturally aged gun propellants

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    Luka Grbović

    2006-04-01

    Full Text Available Praćenje sadržaja stabilizatora jedna je od suvremenih i pouzdanih metoda koja se u svetu, a i kod nas, primenjuje za kontrolu kemijske stabilnosti i prognoziranje veka upotrebljivosti baruta. Radi ocene kemijske stabilnosti baruta domaće proizvodnje u radu su analizirani rezultati određivanja sadržaja stabilizatora u prirodno starenim jednobaznim barutima tipa NC i NCD i dvobaznim barutima tipa NGB i NGH. Pri tome su uporedno analizirani rezultati uzoraka iz kolekcija baruta iz Kragujevca (KB-1 i Zelenike (KB-2. Dobijeni rezultati ukazuju na znatno brži pad stabilnosti uzoraka baruta iz kolekcije KB-2, što se može objasniti značajnim uticajem klimatskih uslova. Osim toga, dobijeni rezultati potvrđuju uticaj mnogih faktora na kemijsku stabilnost baruta, kao što su: sastav, kvalitet sirovina, tehnološki postupak, oblik i dimenzije barutnog zrna i sl. / Monitoring of the stabilizer content is one of the modern and reliable methods in the world, and here also, which is used to control chemical stability and to predict the usage time of gun propellants. For the purpose of evaluation of gun propellants' chemical stability manufactured in our country, in this paper -we analyzed results from the content of stabilizer determination in naturally aged single base, NC and NCD type, and double base, NGB and NGH type of gun propellants. At the same time -we analyzed results from both collections of gun propellant samples, one from Kragujevac factory (KB-1 and the other from Zelenika factory (KB-2. Obtained results point that the stability decays faster for KB-2 collection samples, -which can be explained due to climate factors. Beside this influence, obtained results prove the influence of many factors on chemical stability of gun propellants: used components, quality of the ingredients, procedures of manufacture, shape and dimensions of gun propellant grains, etc.