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  • 1
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    German Medical Science GMS Publishing House; Düsseldorf
    In:  36. Jahrestagung der Deutschsprachigen Arbeitsgemeinschaft für Verbrennungsbehandlung (DAV 2018); 20180110-20180113; Garmisch-Partenkirchen; DOCV 50 /20180109/
    Publication Date: 2018-01-09
    Keywords: ddc: 610
    Language: German
    Type: conferenceObject
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  • 2
    ISSN: 1476-5535
    Keywords: Keywords: biofilms; biodiversity; marine microbiology; microbial ecology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The study of biofilms provides a unique educational opportunity to examine ecosystems, biodiversity and applications of environmental biotechnology. There are many variables that could be studied for measuring the interactions between bacterial biofilms and invertebrate biodiversity as a method for assessing the health of aquatic ecosystems. These interactions also lend themselves to an easily replicated model system which can be used to reach a wide audience with an educational opportunity for students as well as a professional development opportunity for teachers. At the foundation of the research are invaluable basic microbiology skills: strain collection, isolation, cultivation and characterization. Through the additional process of characterizing, identifying and enumerating invertebrate organisms that attach to bacterial biofilms in aquatic ecosystems, there evolved a multidisciplinary class laboratory activity that has found broad application. This activity is captivating not only to undergraduate microbiology students but to middle and high school students and their teachers. The demand for information about the activity has led to the development of a truly interactive web-based lesson, which in turn has resulted in additional inquiries and further refinement of the lesson as an undergraduate independent research course. Both of these are freely accessible on the web, with growing international participation and data exchange. Journal of Industrial Microbiology & Biotechnology (2000) 24, 334–338.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1437-9813
    Keywords: Key words Inguinal canal ; Ovarian cyst ; Lymphangioma ; Neuroblastoma ; Epidermal cyst
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Masses in the inguinal canal other than hernias are rare occurrences, and their preoperative diagnosis requires a high index of suspicion. A soft, partly reducible groin mass in a 3-month-old boy proved to be a cystic lymphangioma within the inguinal canal. A 15-month-old female who presented with an irreducible inguinal mass was found to have a neuroblastoma metastasis in the groin. An irreducible groin mass in a 6-year-old female proved to be an inguinal canal epidermal inclusion cyst. A 14-year-old female presented with a painful groin swelling that represented an incarcerated hemorrhagic ovarian cyst. An awareness of the wide spectrum of entities other than the standard bowel, testicle, and ovary in the inguinal canal can help to identify uncommon pathologies preoperatively.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Cette étude a été réalisée pour comparer la pression de rupture anastomotique de l'anastomose colo-rectale chez le chien utilisant trois différentes techniques d'anastomose. Anneau anastomotique biofragmentable (AAB), pince à suture automatique et suture manuelle ont été placées de façon séquentielle chez chacun des 48 chiens après section du colon en trois endroits placés à égale distance. 4 groupes de 12 chiens ont été sacrifiés au jour 0, 3, 7, 28, la pression de rupture anastomotique et la tension pariétale de rupture ont été étudiées. Les résultats révèlent que les anneaux anastomotiques biofragmentables ont une plus grande force le jour de l'intervention, les anastomoses manuelles sont plus solides au troisième jour et toutes sont comparables au septième jour. La pression de rupture pour tous les groupes au 28ème jour approche la pression colique normale de rupture avec quelques différences qui reflêtent probablement des variations de la fibrose anastomotique ou d'autres facteurs.
    Notes: Abstract The study was undertaken to compare anastomotic bursting pressure (ABP) of colorectal canine anastomoses using three different anastomotic techniques. Biofragmentable anastomotic ring (BAR), stapled, and sutured colon anastomoses were sequentially placed in each of 48 dogs following division of the colon at three equally spaced sites. Four groups of 12 dogs were sacritficed either on day 0, 3, 7, or 28 and ABP and bursting wall tension were determined. The data revealed that BAR anastomoses have the greatest strength on the day of surgery, sutured anastomoses are the strongest on the third day and all are comparable by the 7th day. Bursting pressures for all groups by day 28 approach normal colonic bursting pressure, with any differences likely to be a reflection of variation in anastomotic fibrosis and other factors.
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  • 5
    ISSN: 1432-198X
    Keywords: Key words Focal segmental glomerulosclerosis ; Steroid resistant ; Intravenous pulse cyclophosphamide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  We report the response of ten patients (6 male, 4 female) with steroid-resistant focal segmental glomerulosclerosis (FSGS) to treatment with intravenous pulse cyclophosphamide (IVCP) together with oral prednisone. All patients had been treated with 60 mg/m2 oral prednisone daily for 2 months upon initial presentation. IVCP was given monthly at a dose of 500 mg/m2 over 6 months. Oral prednisone was given concurrently at 60 mg/m2 daily for 2 months and then on alternate days for 4 months, followed by 30 mg/m2 on alternate days for 6 months. Prednisone was then tapered monthly by 10 mg and finally discontinued. Five patients failed to respond to steroids from the onset and were considered as primary steroid resistant. Two of these patients achieved sustained remission after IVCP, one patient showed a partial response, with loss of edema, normalization of serum albumin, and persistent proteinuria, while two patients showed no response to IVCP. The other five patients had achieved remission after 2 months of daily prednisone at 60 mg/m2 upon initial presentation, but had suffered from more than three relapses per year and had eventually become steroid resistant. They were considered secondary steroid resistant. All five patients achieved sustained remission after IVCP. None of our patients suffered from adverse effects of IVCP. We suggest IVCP as an adjunctive therapy for steroid-resistant FSGS, particularly for patients with secondary steroid resistance.
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  • 6
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Stocks of eastern oysters, Crassostrea virginica (Gmelin), in mesohaline Chesapeake Bay, USA, exhibit a high degree of inter-annual and spatial variability in recruitment. We found that cumulative oyster spatfall on off-bottom collector plates, measured throughout the summer in 14 years over a span of three decades, was highly positively correlated (r 2 = 0.8) with juvenile oyster recruitment on adjacent oyster bars. Total abundances of juvenile oysters on these bars were, however, generally 99.7% lower than predicted from cumulative seasonal larval settlement on collector plates. We propose that although the number of larvae metamorphosing was the key factor in determining the gross annual pattern of recruitment to these mesohaline oyster bars, the actual magnitude of recruitment was governed by post-settlement processes, such as competition for limited resources and predation. We tested the hypothesis that predation may be partly responsible for high post-settlement juvenile oyster mortality. We performed a series of 3-d field investigations over two summers (1989, 1990) at a mesohaline site, employing cages of various mesh sizes (400, 800, 1500 μm) to protect hatchery-reared spat of 0.5 to 4.0 mm shell height. Mortality rates for spat held for 3 d in the estuary (17.8%) were significantly higher (P = 0.0001) for the smallest spat (0.5 to 2.0 mm) compared with those of 2.01 to 4.0 mm (4.2%). In 1990, but not in 1989, enclosure within 400 and 800 μm mesh cages significantly (P = 0.004) increased survival during 3-d deployments (9.4 and 10.1%, respectively) compared with spat unprotected by mesh cages (21.9%). In a series of laboratory predation studies that used the entire community of invertebrates that could penetrate the cages, microscopic juvenile polyclad flatworms, Stylochus ellipticus, were the only organisms that we observed crawling into living oysters and feeding on oyster tissue. Large flatworms (50 to 200 mm2) are known to be important predators on oysters, but this ability of flatworms that were so small (<ca. 5 mm2) and translucent as to be almost invisible without magnification to feed on immediate post-metamorphic oysters has not been documented previously. Our results suggest that the rate of mortality due to predation in mesohaline Chesapeake Bay is much reduced once spat survive for 2 to 3 weeks post-metamorphosis. Thus, it is likely that predation in the 1 to 2 week period immediately after settlement may be a crucial factor in the structuring of eastern oyster populations.
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  • 7
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 91 (1989), S. 3196-3207 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: A model is presented to describe the dynamical processes of trapping/desorption as well as direct and indirect inelastic scattering on single-crystal surfaces. Newton's equations of motion are integrated for a system consisting of a rigid rotor interacting with a slab of 19 surface atoms. The surface atom which is closest to the center of mass of the molecule is permitted to translate only along the surface normal. In turn, this mobile surface atom is harmonically coupled to a microcanonical heat bath consisting of three subsurface atoms. This method is much less computationally intensive than the typical generalized Langevin equation (GLE) approach. Direct comparison is made between the predictions of this model and experiment for the NO/Pt(111) system. In the case of trapping/desorption, the model accurately describes the observed dependence of rotational alignment on rotational quantum number. For the inelastic scattering regime, the model successfully reproduces the degree of rotational excitation and qualitatively accounts for the observed rotational alignment. In addition, the model predicts correlations between final state velocity and final state rotational angular momentum (both direction and magnitude), as well as the effect of molecular orientation and surface impact parameter on the overall trapping probability.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 85 (1986), S. 3985-3991 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The refractive index in each phase of the binary fluid mixture isobutyric acid and water was measured at temperatures below the system's upper consolute point. This data was combined with existing density data to test the Lorentz–Lorenz relation in a near-critical binary fluid mixture. The Lorentz–Lorenz relation is verified within experimental error (0.5%) when the volume change on mixing the components is taken into account. The density coexistence curve data is reanalyzed to determine the critical exponent β and amplitude B. By allowing the order parameter to be a definition of the volume fraction that includes volume loss on mixing, a very symmetric coexistence curve is obtained which can be described by simple scaling with β=0.326±0.003 and B=1.565±0.021. This exponent agrees with theoretical predictions while the amplitude, when combined with existing turbidity data, confirms two-scale-factor universality. The amplitude obtained by analyzing the coexistence curve when the refractive index is the order parameter also combines with turbidity data to confirm two-scale-factor universality, but does not require knowledge of the volume loss on mixing or the composition dependence of the refractive index.
    Type of Medium: Electronic Resource
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  • 9
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 109 (1998), S. 4009-4014 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The heat capacity of the liquid–liquid mixture aniline-cyclohexane has been measured for the first time near its upper critical consolute point using an adiabatic calorimeter. Two data runs provide heat capacity data that are fitted by equations with background terms and a critical term. The critical exponent α was determined to be 0.104±0.011, consistent with theoretical predictions. When α was fixed at its theoretical value of 0.11 to determine the critical amplitudes A+ and A−, our value for the amplitude ratio A+/A−=0.59±0.03 was consistent with most experimental determinations in liquid–liquid mixtures, but was slightly larger than either theoretical predictions or recent experimental values in liquid–vapor systems. The two-scale-factor universality ratio X, now consistent among experiments and theories with a value between 0.019 and 0.020, is consistent in this system using one published value for the correlation length, but not with another. © 1998 American Institute of Physics.
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