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  • 1
    Type of Medium: Book
    Pages: 131 S.
    Edition: 7., erw. Aufl.
    Language: German
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  • 2
    Publication Date: 2020-05-04
    Description: We examine CMIP6 simulations of Arctic sea‐ice area and volume. We find that CMIP6 models produce a wide spread of mean Arctic sea‐ice area, capturing the observational estimate within the multi‐model ensemble spread. The CMIP6 multi‐model ensemble mean provides a more realistic estimate of the sensitivity of September Arctic sea‐ice area to a given amount of anthropogenic CO2 emissions and to a given amount of global warming, compared with earlier CMIP experiments. Still, most CMIP6 models fail to simulate at the same time a plausible evolution of sea‐ice area and of global mean surface temperature. In the vast majority of the available CMIP6 simulations, the Arctic Ocean becomes practically sea‐ice free (sea‐ice area 〈 1 million km2) in September for the first time before the year 2050 in each of the four emission scenarios SSP1‐1.9, SSP1‐2.6, SSP2‐4.5 and SSP5‐8.5 examined here.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev , info:eu-repo/semantics/article
    Format: application/pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 15 (1977), S. 391-397 
    ISSN: 1741-0444
    Keywords: Instrumentation ; Neurophysiology ; Tracking
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Description / Table of Contents: Sommaire Il est bien connu que le dépistage peut servir à détecter les variations faibles, bien que significatives, des fonctions neurologiques. Toutefois, la taille, le coût et la complexité des équipements ont, jusqu'ici, empêché leur application généralisée pour l'évaluation des tests cliniques. Neuf ans de travaux de mise au point ont abouti à l'étude et l'évaluation d'une batterie de dépistage et de détection de tremblements. Elle est portable, et facile à utiliser. Elle évalue les fonctions neurologiques correspondant à la régularité, le temps de réaction, la vitesse et la coordination des extrémités supérieures du corps. Les appareils de mesure comprennent un groupe électronique central avec unité d'alimentation et minuteries de test, un affichage de données numériques un tube cathodique de visualisation, un enregistreur à bande, ainsi que des transducteurs de position, de force et d'accéléromètres. Les tests prévus comportent, entre autres, la régularité de la force, le tremblement au repos et en sustentation, ainsi que le dépistage aléatoire, sinusoïdale, pas-à-pas et critique en modes de poursuite et de compensation. L'analyse des données peut se faire en mode direct ou autonome.
    Abstract: Zusammenfassung Es ist bekannt, daß Eingrenzungsaufgaben für das Auffinden geringfügiger, jedoch bedeutsamer Änderungen in der neurologischen Funktion nützlich sein können. Größe, Kosten und Kompliziertheit der Ausrüstung haben ihre weitgehende Anwendung zur Auswertung klinischer Versuche jedoch bisher verhindert. In neunjähriger Entwicklungsarbeit ist nunmehr eine Zitter-und Spureneingrenzungsbatterie entwickelt und ausgewertet worden. Sie isttragbar und leicht zu benutzen. Sie wertet neurologische Funktionen in Verbindung mit Beständigkeit, Reaktionszeit, Geschwindigkeit und Koordinierung der oberen Extremitäten aus. Die Instrumentenausstattung schließt ein zentrales Elektronik-Paket mit Netzteil und Prüfzeitschaltern, eine digitale Datenauslesung, eine Fernsehanzeige, einen Streifenblattschreiber sowie Positions-, Kraft- und Beschleunigungsmesser-Wandler ein. Die verfügbaren Tests umfassen Kraftbeständigkeit, Ruhe- und Aushaltezittern und wahllose-, sinusähnliche-, stufenartige- und kritische Spureneingrenzung in Verfolgungs- und Ausgleichs-Betriebsarten. Die Datenanalyse kann systemabhängig oder systemunabhängig erfolgen.
    Notes: Abstract It has been known that tracking tasks can be useful for detecting small but significant changes in neurological function. However the size, cost and complexity of the equipment have, to date, precluded their widespread use for evaluation of clinical trials. In development for nine years, a battery of tremour and tracking tasks has been designed and evaluated. It is portable, and easy to administer and score. It evaluates neurological functions associated with steadiness, reaction time, speed, and co-ordination of the upper extremities. Instrumentation includes a central electronics package with power supply and test timers, a digital data readout, a television display, a chart recorder, and position, force, and accelerometer transducers. Available tests include force steadiness, resting and sustention tremour, and random, sinusoid, step and critical tracking in pursuit and compensatory modes. Data analysis can be online or offline.
    Type of Medium: Electronic Resource
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  • 4
    Publication Date: 2013-06-08
    Description: TRPV6 channels function as epithelial Ca2+ entry pathways in the epididymis, prostate, and placenta. However, the identity of the endogenous TRPV6 protein relies on predicted gene coding regions and is only known to a certain level of approximation. We show that in vivo the TRPV6 protein has an extended N terminus. Translation initiates at a non-AUG codon, at ACG, which is decoded by methionine and which is upstream of the annotated AUG, which is not used for initiation. The in vitro properties of channels formed by the extended full-length TRPV6 proteins and the so-far annotated and smaller TRPV6 are similar, but the extended N terminus increases trafficking to the plasma membrane and represents an additional scaffold for channel assembly. The increased translation of the smaller TRPV6 cDNA version may overestimate the in vivo situation where translation efficiency may represent an additional mechanism to tightly control the TRPV6-mediated Ca2+ entry to prevent deleterious Ca2+ overload.
    Print ISSN: 0021-9258
    Electronic ISSN: 1083-351X
    Topics: Biology , Chemistry and Pharmacology
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  • 5
    Publication Date: 2016-04-13
    Description: Author(s): Subhro Bhattacharjee, S. Erfanifam, E. L. Green, M. Naumann, Zhaosheng Wang, S. Granovsky, M. Doerr, J. Wosnitza, A. A. Zvyagin, R. Moessner, A. Maljuk, S. Wurmehl, B. Büchner, and S. Zherlitsyn We report on measurements of the sound velocity and attenuation in a single crystal of the candidate quantum-spin-ice material Yb 2 Ti 2 O 7 as a function of temperature and magnetic field. The acoustic modes couple to the spins magnetoelastically and, hence, carry information about the spin correlations… [Phys. Rev. B 93, 144412] Published Tue Apr 12, 2016
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 6
    Publication Date: 2016-08-12
    Description: In this study we examined the efficiency of a kaolinite clayey soil to mitigate water repellency of a sandy soil with olive trees. The treatment was applied to the soil zone below the tree canopy, which displayed the highest degree of water repellency (average Water Drop Penetration Time (WDPT) value = 820 s). Both dry (incorporated onto the top soil) and wet clay application (after dispersion in irrigation water), were examined in a replicated experiment, with control trees being used for comparison. The application rate of the clayey soil was maintained in both cases (wet and dry mode) equal to 1 kg m -2 , while the effect of subsequent wetting and drying cycles on the treatment performance was evaluated. The results of the study verify that clay application was effective to mitigate soil water repellency. Dry supplementation displayed low efficiency (26% reduction of the air-dry WDPT compared to the control soil) within the first week of application. The efficiency of the dry clay treatment increased to 76% after applying three subsequent wetting and drying cycles. In comparison to the dry mode, the wet clay was efficient immediately after application (74% reduction of the WDPT), indicating that the limiting step in the overall process was clay dispersion. Based on the findings of this study, it was proposed that wet clay application is of interest for controlling soil water repellency in agricultural land.
    Print ISSN: 1085-3278
    Electronic ISSN: 1099-145X
    Topics: Geography , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Wiley-Blackwell
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