Search Results - (Author, Cooperation:G. Arnold)
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1Latest Papers from Table of Contents or Articles in PressAjoy, A., Liu, K., Nazaryan, R., Lv, X., Zangara, P. R., Safvati, B., Wang, G., Arnold, D., Li, G., Lin, A., Raghavan, P., Druga, E., Dhomkar, S., Pagliero, D., Reimer, J. A., Suter, D., Meriles, C. A., Pines, A.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-05-19Publisher: American Association for the Advancement of Science (AAAS)Electronic ISSN: 2375-2548Topics: Natural Sciences in GeneralPublished by: -
2Latest Papers from Table of Contents or Articles in PressA. Coradini ; F. Capaccioni ; S. Erard ; G. Arnold ; M. C. De Sanctis ; G. Filacchione ; F. Tosi ; M. A. Barucci ; M. T. Capria ; E. Ammannito ; D. Grassi ; G. Piccioni ; S. Giuppi ; G. Bellucci ; J. Benkhoff ; J. P. Bibring ; A. Blanco ; M. Blecka ; D. Bockelee-Morvan ; F. Carraro ; R. Carlson ; U. Carsenty ; P. Cerroni ; L. Colangeli ; M. Combes ; M. Combi ; J. Crovisier ; P. Drossart ; E. T. Encrenaz ; C. Federico ; U. Fink ; S. Fonti ; L. Giacomini ; W. H. Ip ; R. Jaumann ; E. Kuehrt ; Y. Langevin ; G. Magni ; T. McCord ; V. Mennella ; S. Mottola ; G. Neukum ; V. Orofino ; P. Palumbo ; U. Schade ; B. Schmitt ; F. Taylor ; D. Tiphene ; G. Tozzi
American Association for the Advancement of Science (AAAS)
Published 2011Staff ViewPublication Date: 2011-10-29Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
3Latest Papers from Table of Contents or Articles in PressM. C. De Sanctis ; F. Capaccioni ; M. Ciarniello ; G. Filacchione ; M. Formisano ; S. Mottola ; A. Raponi ; F. Tosi ; D. Bockelee-Morvan ; S. Erard ; C. Leyrat ; B. Schmitt ; E. Ammannito ; G. Arnold ; M. A. Barucci ; M. Combi ; M. T. Capria ; P. Cerroni ; W. H. Ip ; E. Kuehrt ; T. B. McCord ; E. Palomba ; P. Beck ; E. Quirico
Nature Publishing Group (NPG)
Published 2015Staff ViewPublication Date: 2015-09-25Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Extraterrestrial Environment/*chemistry ; Ice/*analysis ; *Meteoroids ; Temperature ; Time Factors ; VolatilizationPublished by: -
4Latest Papers from Table of Contents or Articles in PressG. Filacchione ; M. C. De Sanctis ; F. Capaccioni ; A. Raponi ; F. Tosi ; M. Ciarniello ; P. Cerroni ; G. Piccioni ; M. T. Capria ; E. Palomba ; G. Bellucci ; S. Erard ; D. Bockelee-Morvan ; C. Leyrat ; G. Arnold ; M. A. Barucci ; M. Fulchignoni ; B. Schmitt ; E. Quirico ; R. Jaumann ; K. Stephan ; A. Longobardo ; V. Mennella ; A. Migliorini ; E. Ammannito ; J. Benkhoff ; J. P. Bibring ; A. Blanco ; M. I. Blecka ; R. Carlson ; U. Carsenty ; L. Colangeli ; M. Combes ; M. Combi ; J. Crovisier ; P. Drossart ; T. Encrenaz ; C. Federico ; U. Fink ; S. Fonti ; W. H. Ip ; P. Irwin ; E. Kuehrt ; Y. Langevin ; G. Magni ; T. McCord ; L. Moroz ; S. Mottola ; V. Orofino ; U. Schade ; F. Taylor ; D. Tiphene ; G. P. Tozzi ; P. Beck ; N. Biver ; L. Bonal ; J. P. Combe ; D. Despan ; E. Flamini ; M. Formisano ; S. Fornasier ; A. Frigeri ; D. Grassi ; M. S. Gudipati ; D. Kappel ; F. Mancarella ; K. Markus ; F. Merlin ; R. Orosei ; G. Rinaldi ; M. Cartacci ; A. Cicchetti ; S. Giuppi ; Y. Hello ; F. Henry ; S. Jacquinod ; J. M. Reess ; R. Noschese ; R. Politi ; G. Peter
Nature Publishing Group (NPG)
Published 2016Staff ViewPublication Date: 2016-01-14Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
5Latest Papers from Table of Contents or Articles in PressJeffrey G. Arnold; Katrin Bieger; Michael J. White; Raghavan Srinivasan; John A. Dunbar; Peter M. Allen
MDPI Publishing
Published 2018Staff ViewPublication Date: 2018-06-01Publisher: MDPI PublishingElectronic ISSN: 2073-4441Topics: Energy, Environment Protection, Nuclear Power EngineeringPublished by: -
6Latest Papers from Table of Contents or Articles in PressS. Mottola ; G. Arnold ; H. G. Grothues ; R. Jaumann ; H. Michaelis ; G. Neukum ; J. P. Bibring ; S. E. Schroder ; M. Hamm ; K. A. Otto ; I. Pelivan ; G. Proffe ; F. Scholten ; D. Tirsch ; M. Kreslavsky ; E. Remetean ; F. Souvannavong ; B. Dolives
American Association for the Advancement of Science (AAAS)
Published 2015Staff ViewPublication Date: 2015-08-01Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
7Latest Papers from Table of Contents or Articles in PressF. Capaccioni ; A. Coradini ; G. Filacchione ; S. Erard ; G. Arnold ; P. Drossart ; M. C. De Sanctis ; D. Bockelee-Morvan ; M. T. Capria ; F. Tosi ; C. Leyrat ; B. Schmitt ; E. Quirico ; P. Cerroni ; V. Mennella ; A. Raponi ; M. Ciarniello ; T. McCord ; L. Moroz ; E. Palomba ; E. Ammannito ; M. A. Barucci ; G. Bellucci ; J. Benkhoff ; J. P. Bibring ; A. Blanco ; M. Blecka ; R. Carlson ; U. Carsenty ; L. Colangeli ; M. Combes ; M. Combi ; J. Crovisier ; T. Encrenaz ; C. Federico ; U. Fink ; S. Fonti ; W. H. Ip ; P. Irwin ; R. Jaumann ; E. Kuehrt ; Y. Langevin ; G. Magni ; S. Mottola ; V. Orofino ; P. Palumbo ; G. Piccioni ; U. Schade ; F. Taylor ; D. Tiphene ; G. P. Tozzi ; P. Beck ; N. Biver ; L. Bonal ; J. P. Combe ; D. Despan ; E. Flamini ; S. Fornasier ; A. Frigeri ; D. Grassi ; M. Gudipati ; A. Longobardo ; K. Markus ; F. Merlin ; R. Orosei ; G. Rinaldi ; K. Stephan ; M. Cartacci ; A. Cicchetti ; S. Giuppi ; Y. Hello ; F. Henry ; S. Jacquinod ; R. Noschese ; G. Peter ; R. Politi ; J. M. Reess ; A. Semery
American Association for the Advancement of Science (AAAS)
Published 2015Staff ViewPublication Date: 2015-01-24Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
8Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-12-21Publisher: American Society of Hematology (ASH)Print ISSN: 0006-4971Electronic ISSN: 1528-0020Topics: BiologyMedicineKeywords: Thrombocytopenia, Platelets and Thrombopoiesis, Thrombosis and Hemostasis, Clinical Trials and ObservationsPublished by: -
9FIS Bildung LiteraturdatenbankStaff View
Type of Medium: articlePublication Date: 1984Keywords: Automatisierung ; Ingenieurwissenschaft ; Naturwissenschaftlicher Unterricht ; Roboter ; Technikunterricht ; Technologie ; Elektronik ; IndustrieIn: Die Umschau : Forschung, Entwicklung, Technologie, Bd. 84 (1984) H. 9, S. 262, 0041-63470722-8562Language: German -
10Latest Papers from Table of Contents or Articles in PressIjiri, A., Inagaki, F., Kubo, Y., Adhikari, R. R., Hattori, S., Hoshino, T., Imachi, H., Kawagucci, S., Morono, Y., Ohtomo, Y., Ono, S., Sakai, S., Takai, K., Toki, T., Wang, D. T., Yoshinaga, M. Y., Arnold, G. L., Ashi, J., Case, D. H., Feseker, T., Hinrichs, K.-U., Ikegawa, Y., Ikehara, M., Kallmeyer, J., Kumagai, H., Lever, M. A., Morita, S., Nakamura, K.-i., Nakamura, Y., Nishizawa, M., Orphan, V. J., Roy, H., Schmidt, F., Tani, A., Tanikawa, W., Terada, T., Tomaru, H., Tsuji, T., Tsunogai, U., Yamaguchi, Y. T., Yoshida, N.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-06-14Publisher: American Association for the Advancement of Science (AAAS)Electronic ISSN: 2375-2548Topics: Natural Sciences in GeneralPublished by: -
11Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-03-09Publisher: Wiley-BlackwellPrint ISSN: 1051-0761Electronic ISSN: 1939-5582Topics: BiologyPublished by: -
12Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-05-04Publisher: Institute of Physics Publishing (IOP)Electronic ISSN: 1748-0221Topics: PhysicsPublished by: -
13Articles: DFG German National LicensesZeevalk, Gail D. ; Hyndman, Arnold G. ; Nicklas, William J.
Oxford, UK : Blackwell Publishing Ltd
Published 1989Staff ViewISSN: 1471-4159Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Abstract: Acute excitotoxicity in embryonic chick retina and the ability of C1− channel blockers to prevent toxicity were evaluated by measurement of endogenous amino acid release and histology. Treatment of retina with kainate, quisqualate, or N-methyl-D-aspartate resulted in a large dose-dependent release of γ-aminobutyric acid and taurine, moderate release of glutamine and alanine, and no measurable release of glu-tamate or aspartate. Concentrations inducing maximal γ-aminobutyric acid release were 50 μM quisqualate, 100 μM kainate, and 100 μM N-methyl-D-aspartate. Treatment with 1 mM glutamate resulted in significant γ-aminobutyric acid release, as well as an elevation in medium aspartate levels. Typical excitotoxic retinal lesions were produced by the agonists and, at the lower concentrations tested, revealed a regional sensitivity. There was a positive correlation between the amount of γ-aminobutyric acid release and the extent of tissue swelling, suggesting that release may be secondary to toxic cellular events. Omission of C1− completely blocked cytotoxic effects due to kainate or glutamate. Likewise, addition of the C1−/bicarbonate anion channel blocker 4,4′-di-isothiocyanatostilbene-2,2′-disulfonate at 600 μM protected retina from cytotoxic damage from all excitotoxic analogs and restored amino acid levels to baseline values. Furosemide. which blocks Na+/K+/2C1− cotransport, was only minimally effective in reducing amino acid release induced by the agonists. Consistent with the latter, histological examination showed the continued presence of the lesion but with general reduction of cellular edema. These results indicate that although influx of C1− is a central component of the acute excitotoxic phenomenon, mechanisms other than passive Cl−flux may be involved.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesVulto, Arnold G. ; Sharp, Trevor ; Ungerstedt, Urban ; Versteeg, Dirk H. G.
Oxford, UK : Blackwell Publishing Ltd
Published 1988Staff ViewISSN: 1471-4159Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Abstract: Extracellular dopamine (DA) and its metabolites 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanil-lic acid (HVA) in rat nucleus accumbens were determined before and shortly following death using microdialysis. A maximal 400-fold increase in the output of DA was observed within the first 5 min of death. DA output remained elevated over the following hour at a level of approximately 70-fold above pre-death values. In contrast to that of DA, DOPAC and HVA output gradually declined. Before death the extracellular DOPAC/DA ratio was about 250; after death this ratio dropped to 0.44 at 5 min. These observations may have important implications for experiments measuring the output of (endogenous) DA and its metabolites from brain tissue in vitro: autoregulation of, e.g., transmitter release and synthesis in vitro may be seriously disrupted by the observed depletion of transmitter storage granules.Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesVulto, Arnold G. ; Westenberg, Herman G. M. ; Meijer, L. Bert A. ; Versteeg, Dirk H. G.
Oxford, UK : Blackwell Publishing Ltd
Published 1986Staff ViewISSN: 1471-4159Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Abstract It has been postulated that changes in the concentration of 3-methoxytyramine (3-MT) in the brain might reflect changes in the release of 3,4-dihydroxyphenylethylamine (DA, dopamine) and, therefore, might be used as an index of dopaminergic activity in the brain. 3-MT is known to accumulate rapidly after death. Killing by microwave irradiation (MWR) is considered to be the method of choice to obtain “undisturbed” 3-MT concentrations. We measured striatal 3-MT concentrations even lower than those following MWR when the brains were excised and frozen in dry ice very rapidly (typical time between decapitation and freezing of the brain 22 s). There was a linear increase in striatal 3-MT concentration when the time between decapitation and freezing was varied between 13 and 300 s. Extrapolation to time zero indicated negligible amounts of 3-MT at the time of decapitation. In addition, it was observed that DA, 3,4-dihydroxyphenylacetic acid, and homovanillic acid decompose during the cooling phase after heating the brain by microwave. It is concluded that MWR induces arti-factual changes in the postmortem levels of DA and metabolites. Consequently 3-MT cannot be considered to be a reliable indicator of DA release in the rat brain.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1365-2494Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: Bite depth was measured in four experiments in which grazing cows were offered, individually, patches of perennial ryegrass swards, typically 0·9 m × 0·9 m, of contrasting structural composition within linear sequences of eighteen to twenty-seven patches. Bite depths were analysed in relation to the independent effects of pseudo-stem height, re-growth depth, stubble height and sward height. In vegetative swards comprising predominantly leaf, with re-growth and stubble strata of vegetative origin, bite depth was strongly related to sward height. However, when the leaf–stem contrast between strata increased, bite depth was strongly correlated with the depth of re-growth. Cows were observed to penetrate into a mature stubble stratum with increasing sward height, indicating that stubble height is only a partial regulator of bite depth. In an experiment designed to investigate the independent effects of pseudo-stem and sward height, pseudo-stem was only a partial regulator of bite depth. Evidence to support the concept that bite depth is a fixed proportion of sward height across swards of different structure was inconsistent, but there was evidence of a maximum bite depth of 0·70 of sward height. There were also indications that bite depth was conditioned by the number of bites removed. This suggested that cows initially took a cautious approach to grazing, building up bite depth with feedback over the first 20–30 bites in a new patch. Behaviour at the current patch was not affected by the characteristics of the preceding or succeeding patch in sequence.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 1365-2494Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: The effect of the physiological status of grazing ewes on diet selection was studied, using ewes with oesophageal fistulae. The diets of dry ewes grazing Phalaris annual grasses and subterranean clover pastures, over a range of availabilities, were compared with those of ewes in various stages of pregnancy and lactation. There were no significant differences at any stage of reproduction in the botanical composition of the diets. However, small differences in diet digestibility, soluble carbohydrate and nitrogen content were found during pregnancy and lactation. These occurred at all levels of availability of pasture. The differences did not appear to have nutritional significance in the particular pasture ecosystems studied because levels of N, soluble carbohydrates and digestibility of the diet were such that selection for survival was unlikely to be necessary.It is concluded that dry fistulated ewes can be used to obtain samples for assessing diet N and soluble carbohydrate contents for ewes in other physiological states. The use of in vitro digestibility tests of diets of dry ewes to assess diet digestibility for ewes in other physiological states may be subject to error.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 1365-2494Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: A newly sown sward of Lolium rigidum was set-stocked from one week after emergence onwards at 7.4 sheep/ha.The proportion of dry matter removed from the sward by grazing each week fell from 20 to 1%/day over the first 7 weeks after emergence.Time-lapse stereo photography showed that in the immediate post-emergence period sheep tended to graze the elongating, or incremental, component of dry matter rather than the fully expanded butts of previously defoliated mature leaves.Frequency of defoliation decreased with time. 97% of plants were defoliated in the second week after emergence, but only 44% in the eighth week.Type of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesStaff View
ISSN: 1365-2494Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: Over a period of 20 months twenty continuous, 24-hour, observations were made on the grazing behaviour of Border Leicester × Merino sheep. Distinct seasonal changes were found in the pattern of grazing. Grazing usually began during the dawn period and decreased at dusk. In spring and summer there were two peaks of grazing, but there was only one peak in autumn and winter. The percentage of grazing taking place between 6 a.m. and 6 p.m. varied with season, and was highest in spring and early summer. These seasonal changes in the pattern of grazing appeared to be independent of grazing pressure, or of the nutritional requirements of the sheep.The mean grazing time, for all observations, was 8·2 hours with a standard deviation of 0·97. Decreasing pasture availability increased grazing time, as shown by an increased intensity of grazing.Ruminating times were found to be considerably lower than have been reported for cattle. There was a significant negative correlation between ruminating time and the nitrogen content of available pasture.There was no clear evidence that the number of lambs carried before parturition, or suckled after parturition, had any effect on grazing time.There was no evidence that the behaviour of one sheep influenced that of another, even of a twin, grazing nearby.Consistent differences between sheep were found for ruminating time. The variation in grazing time between sheep, at any one time, was considerably greater than previously reported and differences between sheep were not consistent.Variation in grazing time appeared to be less in flocks of less than 6 sheep than in flocks of 6 to 12 sheep.Type of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesStaff View
ISSN: 1365-2494Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: Patch selection by grazing dairy cows in response to simultaneous variation in combinations of sward structural characteristics was examined in three experiments in which four mature dairy cows were offered a choice of patches (typically 0.9 m × 0.9 m) of perennial ryegrass (Lolium perenne) presented in a linear arrangement. Treatments involved combinations of variations in sward height, stubble height and/or depth of regrowth, prepared by preliminary cutting treatments. They were arranged in balanced sets of four to nine treatments, which were arranged in linear sequences of eighteen to twenty-seven patches. Within experiments, sequences were balanced across replicate sets of patches, which were grazed separately by individual cows. The number of bites removed and the residence time for each patch were highly correlated in all three experiments, and the results are reported using number of bites per patch as an estimator of foraging behaviour. In the first experiment, with vegetative swards, cows preferentially selected the tallest swards. When swards comprising reproductive stem were offered in Experiment 2, cows selectively grazed short-stubble swards rather than tall-stubble swards, although both offered a similar depth of regrowth. Cows did not exhibit preference for swards comprising the greatest quantity of leaf mass, indicating that the spatial distribution of plant components assumed greater importance. In the third experiment, the number of bites removed increased with increasing depth of regrowth, and was negatively correlated with sward height. The three patch-appraisal cues investigated were broadly ranked in order of importance as (i) depth of regrowth, (ii) sward maturity and (iii) sward height. There was no evidence, at least at a short temporal scale, that patch behaviour was influenced by conditions in adjacent patches, suggesting that the cows assessed grazing opportunities on a patch-by-patch basis.Type of Medium: Electronic ResourceURL: