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    Wyświetlanie 1-11 z 11
    Tytuł:
    Endotoxin concentration in modern animal houses in Southern Bavaria
    Autorzy:
    Schierl, R
    Heise, A.
    Egger, U.
    Schneider, F.
    Eichelser, R.
    Neser, S.
    Nowak, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/50088.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    pig
    animal house
    Bavaria
    endotoxin concentration
    cattle
    modern house
    poultry
    dust
    endotoxin
    Opis:
    Agricultural work, particularly livestock farming, is considered to be a notable risk factor for occupational diseases. Endotoxin as a major component of organic dust causes adverse health effects of the airways among farmers. Endotoxin concentrations in airborne and settled dust were measured in modern, naturally ventilated animal houses for different species. Median values of airborne inhalable endotoxin ranged from 16.9 EU/m3 for dairy cattle, 557.9 EU/m3 for beef cattle, 668.7 EU/m3 for pigs, 463.2 EU/m3 for laying hens, to 1,902 EU/m3 for turkeys. The endotoxin levels in settled dust followed the same pattern as the airborne samples. The concentrations were lower than in previous studies, but the proposed Dutch endotoxin threshold (50 EU/m3) was exceeded in most cases. Thus, endotoxin levels in modern animal houses still give concern for health and further reduction of endotoxin exposure in animal houses is desirable.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2007, 14, 1
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Measurement of the Magnetic Field Distribution in Railguns Using CMR-B-Scalar Sensors
    Autorzy:
    Liebfried, O.
    Schneider, M.
    Loeffler, M.
    Balevičius, S.
    Žurauskienė, N.
    Stankevič, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/1807942.pdf
    Data publikacji:
    2009-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.47.Gk
    07.55.Ge
    85.70.Rp
    Opis:
    Colossal magnetoresistance effect B-scalar magnetic field sensors with effective areas of 0.05 $mm^2$ were used very close to the rails for magnetic field measurements. These measurements were performed during static and dynamic railgun experiments. In static experiments three different rail materials were used and the results are compared to a finite element simulation.
    Źródło:
    Acta Physica Polonica A; 2009, 115, 6; 1125-1127
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pulsed Power and Power Conditioning Capacitors
    Autorzy:
    Macdougall, F.
    Jow, T.
    Ennis, J.
    Yang, X.
    Yen, S.
    Cooper, R.
    Gilbert, J.
    Schneider, M.
    Naruo, C.
    Bates, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1807873.pdf
    Data publikacji:
    2009-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    84.32.Tt
    84.60.Ve
    Opis:
    A capacitor development effort focused on capacitors used in pulsed power and power conversion applications underwent at General Atomics Electronic Systems Inc. (GA-ESI) for decades. In recent years, funding for these efforts has accelerated the rate of development progress to the point where the time it takes to decrease the size of a capacitor by half has dropped from 10 years to 4 years. This progress made in pulsed power and power conversion capacitors will be described along with the performance characteristics of today's capacitors.
    Źródło:
    Acta Physica Polonica A; 2009, 115, 6; 989-991
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Semiconductor Cavity Quantum Electrodynamics with Single Quantum Dots
    Autorzy:
    Reitzenstein, S.
    Schneider, C.
    Münch, S.
    Kistner, C.
    Strauss, M.
    Huggenberger, A.
    Franeck, P.
    Weinmann, P.
    Kamp, M.
    Höfling, S.
    Worschech, L.
    Forchel, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1791177.pdf
    Data publikacji:
    2009-10
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    73.21.La
    71.35.Ji
    71.55.Eq
    37.30.+i
    Opis:
    This paper summarizes recent progress achieved in the field of semiconductor cavity quantum electrodynamics with single quantum dots with the focus being on micropillar cavities. Light-matter interaction both in the strong and weak coupling regime is presented. Resonance tuning of the quantum dot by temperature, electric fields and magnetic fields is demonstrated while the strong coupling regime can be reached. Additionally, deterministic device integration of single positioned quantum dots is reported by a combination of site controlled quantum dot growth via directed nucleation and subsequent device alignment to overcome the degree of randomness of the quantum dot position in so far most common quantum dot-cavity systems.
    Źródło:
    Acta Physica Polonica A; 2009, 116, 4; 445-450
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thin Film Manganite-Metal Interconnection and "Loop Effect" Studies in CMR-Based High Magnetic Field Sensors
    Autorzy:
    Balevičius, S.
    Stankevič, V.
    Žurauskienė, N.
    Šimkevičius, Č.
    Liebfried, O.
    Löffler, M.
    Schneider, M.
    Abrutis, A.
    Plaušinaitienė, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/1807946.pdf
    Data publikacji:
    2009-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.47.Gk
    75.47.Lx
    85.70.Ay
    Opis:
    The design, technology and main characteristics of Ag contacts as well as "loop effect" peculiarities of colossal magnetoresistance B-scalar high magnetic field sensor based on $La_{1-x}(Ca)Sr_x$ $MnO_3$ films used for measuring high magnetic field pulses are presented.
    Źródło:
    Acta Physica Polonica A; 2009, 115, 6; 1133-1135
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ecophenotypic plasticity versus evolutionary trends - morphological variability in Upper Jurassic bivalve shells from Portugal
    Autorzy:
    Schneider, S.
    Fursich, F.T.
    Schulz-Mirbach, F.T.
    Werner, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/23367.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    ecophenotype
    plasticity versus
    evolutionary trend
    morphological variability
    Upper Jurassic
    Jurassic
    bivalve shell
    shell
    Bivalvia
    morphometry
    Fourier shape analysis
    size increase
    Late Jurassic
    Portugal
    Opis:
    Upper Jurassic marginal marine strata of the Lusitanian Basin (central Portugal) yield a rich benthic macrofauna from which three bivalve target taxa, i.e., Arcomytilus, Isognomon, and Eomiodon, were chosen for morphometric studies, because of their abundance both in space and time and their variability in shell shape. The shells have been analysed with regard to outline shape (Fourier shape analysis), dimensions, ornamentation (Arcomytilus) and ligament arrangement (Isognomon). Additionally, data on co−occurring fauna and palaeotemperatures calculated from δ18O values have been recorded. The results of the morphometric analyses have been interpreted with regard to phylogeny and palaeoecology. In all target taxa, a distinct, rapid size increase at around the Early/Late Kimmeridgian boundary is evident. Potential causes for this process are discussed, and an increase in food availability is regarded the most likely scenario. In Isognomon rugosus, a distinct change in resilifer arrangement co−occurs with size increase, resulting in the evolution of an endemic species in the Lusitanian Basin, for which the name Isognomon lusitanicus is reestablished. Like in several extant Mytilidae, morphological species characterisation in Arcomytilus turns out unsatisfactory, due to high intraspecific variability. However, Arcomytilus morrisii is still regarded as a valid species that evolved in the Lusitanian Basin. Despite high shape variability, Eomiodon securiformis is also considered to be a clearly distinguished species. For all target taxa morphologic variability is discussed with regard to environment, and variation between populations is delineated. The data suggest a weak correlation of facies and shell shape in Arcomytilus, while Isognomon lusitanicus seems to develop local varieties in different subbasins. Finally, the great morphologic plasticity of bivalves from rather distinct systematic entities is shown to result from different causes, thus demonstrating that careful studies of the involved species are a prerequisite to draw correct palaeoecological conclusions.
    Źródło:
    Acta Palaeontologica Polonica; 2010, 55, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Silicified sea life – Macrofauna and palaeoecology of the Neuburg Kieselerde Member (Cenomanian to Lower Turonian Wellheim Formation, Bavaria, southern Germany)
    Autorzy:
    Schneider, S.
    Jäger, M.
    Kroh, A.
    Mitterer, A.
    Niebuhr, B.
    Vodrážka, R.
    Wilmsen, M.
    Wood, C. J.
    Zágoršek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/139394.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Late Cretaceous
    Danubian Cretaceous Group
    macroinvertebrates
    facies
    Silica diagenesis
    stratigraphy
    kreda
    makrobezkręgowce
    facja
    krzemionka diageneza
    stratygrafia
    Opis:
    With approximately 100 species, the invertebrate macrofauna of the Neuburg Kieselerde Member of the Wellheim Formation (Bavaria, southern Germany) is probably the most diverse fossil assemblage of the Danubian Cretaceous Group. Occurring as erosional relicts in post-depositional karst depressions, both the Cretaceous sediments and fossils have been silicified during diagenesis. The Neuburg Kieselerde Member, safely dated as Early Cenomanian to Early Turonian based on inoceramid bivalve biostratigraphy and sequence stratigraphy, preserves a predominantly soft-bottom community, which, however, is biased due to near-complete early diagenetic loss of aragonitic shells. The community is dominated by epifaunal and semi-infaunal bivalves as well as sponges that settled on various (bio-) clasts, and may widely be split into an early bivalve-echinoid assemblage and a succeeding sponge-brachiopod assemblage. In addition to these groups we document ichnofauna, polychaete tubes, nautilids and bryozoans. The fauna provides evidence of a shallow to moderately deep, calm, fully marine environment, which is interpreted as a largescale embayment herein. The fauna of the Neuburg Kieselerde Member is regarded as an important archive of lower Upper Cretaceous sea-life in the surroundings of the Mid-European Island.
    Źródło:
    Acta Geologica Polonica; 2013, 63, 4; 555-610
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new family of giant Jurassic–Cretaceous littorinoid gastropods from the northern Tethys shelf
    Autorzy:
    Harzhauser, M.
    Schneider, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/945827.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    mollusca
    gastropoda
    leviathania
    carbonate platform
    body size
    jurassic–cretaceous
    tethys
    tithonian
    ernstbrunn limestone
    austria
    Opis:
    The giant, up to 40 cm high littorinoid gastropods from the Middle Tithonian to Berriasian carbonates of the Alpine-Carpathian northern Tethys margin are assigned to the genus Leviathania. The genus is distributed from Spain to the Caucasus. Some species formed dense populations in the wide-spread, highly productive lagoonal environments situated on the carbonate platforms of Ernstbrunn (Austria), Mikulov, Štramberk (both Czech Republic), and Nyzhniv (Ukraine). The conspicuous morphology, comprising very large shells with strongly angulated whorls and especially the phaneromphalous umbilicus exclude the traditional attributions of this genus to the families Purpurinidae and Purpuroideidae. Therefore, we establish the new family Leviathaniidae for the type genus Leviathania. The family comprises the largest pre-Cenozoic gastropods, represented by a yet unnamed gigantic Leviathania species from the latest Tithonian or early Berriasian of Ukraine. The gastropods are tentatively assumed to have fed omnivorous, i.e., on a mixed detrital-algal diet, based on comparable population densities as the large modern queen conch Lobatusgigas from the Caribbean Sea.
    Źródło:
    Acta Palaeontologica Polonica; 2014, 59, 2; 367-378
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Предупреждение осложнений имплантации на этапе первичной фиксации имплантата
    Prevention of complications of implantation at primary implant fixation
    Autorzy:
    Vakulenko, V.I.
    Goncharenko, E.V.
    Schneider, S.A.
    Kovshar, I.P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1032533.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Kazimierza Wielkiego w Bydgoszczy
    Tematy:
    ортопантомография
    конусно-лучевая компьютерная томография
    частотнорезонансный анализ.
    ортопантомографія
    конусно-променева комп'ютерна томографія
    частотнорезонансний аналіз.
    orthopantomography
    cone-beam computer tomography
    resonance-frequency analysis
    Opis:
    Статья посвящена оптимизации планирования имплантации с целью снижения осложнений на этапе первичной фиксации имплантата. Сравнивались такие методики диагностики в имплантологии, как ортопантомография и конусно-лучевая компьютерная томография. Для определения механической стабильности имплантата использовался частотно-резонансный анализ.
    The article is devoted to optimization of implant planning in order to reduce complications in primary fixation of the implant. Such diagnostic techniques in implantology as orthopantomography and cone-beam computed tomography were compared. The resonancefrequency analysis was used to determine the mechanical stability of the implant.
    Стаття присвячена оптимізації планування імплантації з метою зниження ускладнень на етапі первинної фіксації імплантату. Порівнювалися такі методики діагностики в імплантології, як ортопантомографія і конусно-променева комп'ютерна томографія. Для визначення механічної стабільності імплантату використовувався частотно-резонансний аналіз.
    Źródło:
    Journal of Health Sciences; 2014, 4, 1; 263-274
    1429-9623
    Pojawia się w:
    Journal of Health Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Interactions between the entomopathogenic fungus Beauveria bassiana and the Neotropical predator Eriopis connexa (Coleoptera: Coccinellidae): Implications in biological control of pest
    Autorzy:
    Scorsetti, A.C.
    Pelizza, S.
    Fogel, M.N.
    Vianna, F.
    Schneider, M.I.
    Powiązania:
    https://bibliotekanauki.pl/articles/65580.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    interaction
    entomopathogenic fungi
    Beauveria bassiana
    pathogen-predator interaction
    Eriopis connexa
    Coleoptera
    Coccinellidae
    biological control
    pest
    aphid
    Hemiptera
    Aphididae
    Opis:
    Aphids (Hemiptera: Aphididae) are serious pests of crops causing direct damage by feeding and indirect by the transmission of plant viruses. The use of conventional insecticides for controlling aphids has caused different problems and insecticide resistance. Accordingly, there is more interest in alternative control methods such as biological control by natural enemies for sustainable agricultural management. Among biological control agents, entomopathogenic fungi are one of the most significant microbial pathogens of insects. Also, Coccinellidae, as a major group, is a serious natural enemy. Both larval and adult stages of Coccinellidae feed on different soft-body pests, such as aphids. Eriopis connexa (Germar) (Coleoptera: Coccinellidae) is a common species in agroecosystems of the Neotropical region where it is considered to be a potential control agent. Pathogens and arthropod natural enemies may contribute to the control of phytophagous pests; however, it is important to assess potential interactions within biological control agents that share hosts (intraguild interaction) to evaluate their combined use for pest control. Therefore, the aim of this study was to evaluate the compatibility and interaction (lethal and sublethal effects) between E. connexa and the entomopathogenic fungus Beauveria bassiana (Bals.-Criv.) Vuill. (Ascomycota: Hypocreales). Both are important biological control agents of aphids. The pathogenicity of B. bassiana against larvae, pupae and adults of the predator E. connexa was evaluated, and results showed, that B. bassiana infected the coleopteran. On the other hand, interaction between B. bassiana and the predator was evaluated through infected-prey. The effects of fungus on larvae survival were significantly different when we analyzed the accumulated survival (from first larval instar to adulthood). The daily fecundity was significantly reduced at five days compared to control group. By contrast, no significant differences were observed between the five oviposition days in the rate of hatched eggs. This study shows that despite having received a single dose of the fungus in its life cycle, the population parameters of the predator E. connexa are affected. More studies would be necessary to help identify interactions between microbes and natural enemies to increase and enhance opportunities and further develop biological pest control programs.
    Źródło:
    Journal of Plant Protection Research; 2017, 57, 4
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Sulfur and Acid Soluble Aluminum Content on Precipitate and Microstructure of Grain-Oriented Silicon Steel
    Autorzy:
    Zhou, B.
    Zhu, C.
    Li, G.
    Luo, Z.
    Gao, Y.
    Bao, S.
    Schneider, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/354451.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    grain oriented silicon steel
    sulfur
    acid soluble aluminum
    precipitate
    microstructure
    texture
    Opis:
    The combined effect of sulfur (S) and acid soluble aluminum (Als ) content on precipitates and microstructures in grain-oriented silicon steel were investigated. The results show that there are dominant AlN and a little amount of MnS-AlN composite in annealed hot-rolled band, and the amount of precipitates increases distinctly with increasing Als content, while S content plays a negligible role. The inhibitors that precipitate during hot band annealing can restrain the grain growth during hot band annealing and primary annealing, and the smaller grains of annealed hot-rolled band can contribute to the formation of {111} <112> texture during primary annealing. Lower S content is conducive to the formation of {111} <112> texture during primary annealing by promoting the formation of Goss texture during hot rolling.
    Źródło:
    Archives of Metallurgy and Materials; 2018, 63, 4; 1701-1708
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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