--- _id: '11959' abstract: - lang: eng text: No catalyst required! A highly efficient, catalyst-free process to generate diimide in situ from hydrazine monohydrate and molecular oxygen for the selective reduction of alkenes has been developed. The use of a gas–liquid segmented flow system allowed safe operating conditions and dramatically enhanced this atom-economical reaction, resulting in short processing times. article_processing_charge: No article_type: letter_note author: - first_name: Bartholomäus full_name: Pieber, Bartholomäus id: 93e5e5b2-0da6-11ed-8a41-af589a024726 last_name: Pieber orcid: 0000-0001-8689-388X - first_name: Sabrina Teixeira full_name: Martinez, Sabrina Teixeira last_name: Martinez - first_name: David full_name: Cantillo, David last_name: Cantillo - first_name: C. Oliver full_name: Kappe, C. Oliver last_name: Kappe citation: ama: 'Pieber B, Martinez ST, Cantillo D, Kappe CO. In situ generation of diimide from hydrazine and oxygen: Continuous-flow transfer hydrogenation of olefins. Angewandte Chemie International Edition. 2013;52(39):10241-10244. doi:10.1002/anie.201303528' apa: 'Pieber, B., Martinez, S. T., Cantillo, D., & Kappe, C. O. (2013). In situ generation of diimide from hydrazine and oxygen: Continuous-flow transfer hydrogenation of olefins. Angewandte Chemie International Edition. Wiley. https://doi.org/10.1002/anie.201303528' chicago: 'Pieber, Bartholomäus, Sabrina Teixeira Martinez, David Cantillo, and C. Oliver Kappe. “In Situ Generation of Diimide from Hydrazine and Oxygen: Continuous-Flow Transfer Hydrogenation of Olefins.” Angewandte Chemie International Edition. Wiley, 2013. https://doi.org/10.1002/anie.201303528.' ieee: 'B. Pieber, S. T. Martinez, D. Cantillo, and C. O. Kappe, “In situ generation of diimide from hydrazine and oxygen: Continuous-flow transfer hydrogenation of olefins,” Angewandte Chemie International Edition, vol. 52, no. 39. Wiley, pp. 10241–10244, 2013.' ista: 'Pieber B, Martinez ST, Cantillo D, Kappe CO. 2013. In situ generation of diimide from hydrazine and oxygen: Continuous-flow transfer hydrogenation of olefins. Angewandte Chemie International Edition. 52(39), 10241–10244.' mla: 'Pieber, Bartholomäus, et al. “In Situ Generation of Diimide from Hydrazine and Oxygen: Continuous-Flow Transfer Hydrogenation of Olefins.” Angewandte Chemie International Edition, vol. 52, no. 39, Wiley, 2013, pp. 10241–44, doi:10.1002/anie.201303528.' short: B. Pieber, S.T. Martinez, D. Cantillo, C.O. Kappe, Angewandte Chemie International Edition 52 (2013) 10241–10244. date_created: 2022-08-24T11:01:47Z date_published: 2013-09-23T00:00:00Z date_updated: 2023-02-21T10:09:21Z day: '23' doi: 10.1002/anie.201303528 extern: '1' intvolume: ' 52' issue: '39' language: - iso: eng month: '09' oa_version: None page: 10241-10244 publication: Angewandte Chemie International Edition publication_identifier: eissn: - 1521-3773 issn: - 1433-7851 publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: 'In situ generation of diimide from hydrazine and oxygen: Continuous-flow transfer hydrogenation of olefins' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 52 year: '2013' ... --- _id: '11960' abstract: - lang: eng text: It's not magic! The effects observed in microwave-irradiated chemical transformations can in most cases be rationalized by purely bulk thermal phenomena associated with rapid heating to elevated temperatures. As discussed in this Essay, the existence of so-called nonthermal or specific microwave effects is highly doubtful. article_processing_charge: No article_type: letter_note author: - first_name: C. Oliver full_name: Kappe, C. Oliver last_name: Kappe - first_name: Bartholomäus full_name: Pieber, Bartholomäus id: 93e5e5b2-0da6-11ed-8a41-af589a024726 last_name: Pieber orcid: 0000-0001-8689-388X - first_name: Doris full_name: Dallinger, Doris last_name: Dallinger citation: ama: 'Kappe CO, Pieber B, Dallinger D. Microwave effects in organic synthesis: Myth or reality? Angewandte Chemie International Edition. 2013;52(4):1088-1094. doi:10.1002/anie.201204103' apa: 'Kappe, C. O., Pieber, B., & Dallinger, D. (2013). Microwave effects in organic synthesis: Myth or reality? Angewandte Chemie International Edition. Wiley. https://doi.org/10.1002/anie.201204103' chicago: 'Kappe, C. Oliver, Bartholomäus Pieber, and Doris Dallinger. “Microwave Effects in Organic Synthesis: Myth or Reality?” Angewandte Chemie International Edition. Wiley, 2013. https://doi.org/10.1002/anie.201204103.' ieee: 'C. O. Kappe, B. Pieber, and D. Dallinger, “Microwave effects in organic synthesis: Myth or reality?,” Angewandte Chemie International Edition, vol. 52, no. 4. Wiley, pp. 1088–1094, 2013.' ista: 'Kappe CO, Pieber B, Dallinger D. 2013. Microwave effects in organic synthesis: Myth or reality? Angewandte Chemie International Edition. 52(4), 1088–1094.' mla: 'Kappe, C. Oliver, et al. “Microwave Effects in Organic Synthesis: Myth or Reality?” Angewandte Chemie International Edition, vol. 52, no. 4, Wiley, 2013, pp. 1088–94, doi:10.1002/anie.201204103.' short: C.O. Kappe, B. Pieber, D. Dallinger, Angewandte Chemie International Edition 52 (2013) 1088–1094. date_created: 2022-08-24T11:05:04Z date_published: 2013-01-21T00:00:00Z date_updated: 2023-02-21T10:09:26Z day: '21' doi: 10.1002/anie.201204103 extern: '1' intvolume: ' 52' issue: '4' language: - iso: eng month: '01' oa_version: None page: 1088-1094 publication: Angewandte Chemie International Edition publication_identifier: eissn: - 1521-3773 issn: - 1433-7851 publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: 'Microwave effects in organic synthesis: Myth or reality?' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 52 year: '2013' ... --- _id: '11973' abstract: - lang: eng text: The use of high-temperature/pressure gas–liquid continuous flow conditions dramatically enhances the iron-catalyzed aerobic oxidation of 2-benzylpyridines to their corresponding ketones. Pressurized air serves as a readily available oxygen source and propylene carbonate as a green solvent in this radically intensified preparation of synthetically valuable 2-aroylpyridines. article_processing_charge: No article_type: letter_note author: - first_name: Bartholomäus full_name: Pieber, Bartholomäus id: 93e5e5b2-0da6-11ed-8a41-af589a024726 last_name: Pieber orcid: 0000-0001-8689-388X - first_name: C. Oliver full_name: Kappe, C. Oliver last_name: Kappe citation: ama: Pieber B, Kappe CO. Direct aerobic oxidation of 2-benzylpyridines in a gas-liquid continuous-flow regime using propylene carbonate as a solvent. Green Chemistry. 2013;15(2):320-324. doi:10.1039/c2gc36896j apa: Pieber, B., & Kappe, C. O. (2013). Direct aerobic oxidation of 2-benzylpyridines in a gas-liquid continuous-flow regime using propylene carbonate as a solvent. Green Chemistry. Royal Society of Chemistry. https://doi.org/10.1039/c2gc36896j chicago: Pieber, Bartholomäus, and C. Oliver Kappe. “Direct Aerobic Oxidation of 2-Benzylpyridines in a Gas-Liquid Continuous-Flow Regime Using Propylene Carbonate as a Solvent.” Green Chemistry. Royal Society of Chemistry, 2013. https://doi.org/10.1039/c2gc36896j. ieee: B. Pieber and C. O. Kappe, “Direct aerobic oxidation of 2-benzylpyridines in a gas-liquid continuous-flow regime using propylene carbonate as a solvent,” Green Chemistry, vol. 15, no. 2. Royal Society of Chemistry, pp. 320–324, 2013. ista: Pieber B, Kappe CO. 2013. Direct aerobic oxidation of 2-benzylpyridines in a gas-liquid continuous-flow regime using propylene carbonate as a solvent. Green Chemistry. 15(2), 320–324. mla: Pieber, Bartholomäus, and C. Oliver Kappe. “Direct Aerobic Oxidation of 2-Benzylpyridines in a Gas-Liquid Continuous-Flow Regime Using Propylene Carbonate as a Solvent.” Green Chemistry, vol. 15, no. 2, Royal Society of Chemistry, 2013, pp. 320–24, doi:10.1039/c2gc36896j. short: B. Pieber, C.O. Kappe, Green Chemistry 15 (2013) 320–324. date_created: 2022-08-25T10:29:21Z date_published: 2013-02-01T00:00:00Z date_updated: 2023-02-21T10:09:54Z day: '01' doi: 10.1039/c2gc36896j extern: '1' intvolume: ' 15' issue: '2' language: - iso: eng month: '02' oa_version: None page: 320-324 publication: Green Chemistry publication_identifier: eissn: - 1463-9270 issn: - 1463-9262 publication_status: published publisher: Royal Society of Chemistry quality_controlled: '1' scopus_import: '1' status: public title: Direct aerobic oxidation of 2-benzylpyridines in a gas-liquid continuous-flow regime using propylene carbonate as a solvent type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 15 year: '2013' ... --- _id: '12642' abstract: - lang: eng text: Near-surface air temperature, typically measured at a height of 2 m, is the most important control on the energy exchange and the melt rate at a snow or ice surface. It is distributed in a simplistic manner in most glacier melt models by using constant linear lapse rates, which poorly represent the actual spatial and temporal variability of air temperature. In this paper, we test a simple thermodynamic model proposed by Greuell and Böhm in 1998 as an alternative, using a new dataset of air temperature measurements from along the flowline of Haut Glacier d’Arolla, Switzerland. The unmodified model performs little better than assuming a constant linear lapse rate. When modified to allow the ratio of the boundary layer height to the bulk heat transfer coefficient to vary along the flowline, the model matches measured air temperatures better, and a further reduction of the root-mean-square error is obtained, although there is still considerable scope for improvement. The modified model is shown to perform best under conditions favourable to the development of katabatic winds – few clouds, positive ambient air temperature, limited influence of synoptic or valley winds and a long fetch – but its performance is poor under cloudy conditions. article_processing_charge: No article_type: original author: - first_name: Lene full_name: Petersen, Lene last_name: Petersen - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti - first_name: Inge full_name: Juszak, Inge last_name: Juszak - first_name: Marco full_name: Carenzo, Marco last_name: Carenzo - first_name: Ben full_name: Brock, Ben last_name: Brock citation: ama: 'Petersen L, Pellicciotti F, Juszak I, Carenzo M, Brock B. Suitability of a constant air temperature lapse rate over an Alpine glacier: Testing the Greuell and Böhm model as an alternative. Annals of Glaciology. 2013;54(63):120-130. doi:10.3189/2013aog63a477' apa: 'Petersen, L., Pellicciotti, F., Juszak, I., Carenzo, M., & Brock, B. (2013). Suitability of a constant air temperature lapse rate over an Alpine glacier: Testing the Greuell and Böhm model as an alternative. Annals of Glaciology. International Glaciological Society. https://doi.org/10.3189/2013aog63a477' chicago: 'Petersen, Lene, Francesca Pellicciotti, Inge Juszak, Marco Carenzo, and Ben Brock. “Suitability of a Constant Air Temperature Lapse Rate over an Alpine Glacier: Testing the Greuell and Böhm Model as an Alternative.” Annals of Glaciology. International Glaciological Society, 2013. https://doi.org/10.3189/2013aog63a477.' ieee: 'L. Petersen, F. Pellicciotti, I. Juszak, M. Carenzo, and B. Brock, “Suitability of a constant air temperature lapse rate over an Alpine glacier: Testing the Greuell and Böhm model as an alternative,” Annals of Glaciology, vol. 54, no. 63. International Glaciological Society, pp. 120–130, 2013.' ista: 'Petersen L, Pellicciotti F, Juszak I, Carenzo M, Brock B. 2013. Suitability of a constant air temperature lapse rate over an Alpine glacier: Testing the Greuell and Böhm model as an alternative. Annals of Glaciology. 54(63), 120–130.' mla: 'Petersen, Lene, et al. “Suitability of a Constant Air Temperature Lapse Rate over an Alpine Glacier: Testing the Greuell and Böhm Model as an Alternative.” Annals of Glaciology, vol. 54, no. 63, International Glaciological Society, 2013, pp. 120–30, doi:10.3189/2013aog63a477.' short: L. Petersen, F. Pellicciotti, I. Juszak, M. Carenzo, B. Brock, Annals of Glaciology 54 (2013) 120–130. date_created: 2023-02-20T08:17:29Z date_published: 2013-08-01T00:00:00Z date_updated: 2023-02-21T10:18:24Z day: '01' doi: 10.3189/2013aog63a477 extern: '1' intvolume: ' 54' issue: '63' keyword: - Earth-Surface Processes language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.3189/2013aog63a477 month: '08' oa: 1 oa_version: Published Version page: 120-130 publication: Annals of Glaciology publication_identifier: eissn: - 1727-5644 issn: - 0260-3055 publication_status: published publisher: International Glaciological Society quality_controlled: '1' scopus_import: '1' status: public title: 'Suitability of a constant air temperature lapse rate over an Alpine glacier: Testing the Greuell and Böhm model as an alternative' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 54 year: '2013' ... --- _id: '12643' abstract: - lang: eng text: Parameterizations of incoming longwave radiation are increasingly receiving attention for both low and high elevation glacierized sites. In this paper, we test 13 clear-sky parameterizations combined with seven cloud corrections for all-sky atmospheric emissivity at one location on Haut Glacier d'Arolla. We also analyze the four seasons separately and conduct a cross-validation to test the parameters’ robustness. The best parameterization is the one by Dilley and O'Brien, B for clear-sky conditions combined with Unsworth and Monteith cloud correction. This model is also the most robust when tested in cross-validation. When validated at different sites in the southern Alps of Switzerland and north-western Italian Alps, all parameterizations show a substantial decrease in performance, except for one site, thus suggesting that it is important to recalibrate parameterizations of incoming longwave radiation for different locations. We argue that this is due to differences in the structure of the atmosphere at the sites. We also quantify the effect that the incoming longwave radiation parameterizations have on energy-balance melt modeling, and show that recalibration of model parameters is needed. Using parameters from other sites leads to a significant underestimation of melt and to an error that is larger than that associated with using different parameterizations. Once recalibrated, however, the parameters of most models seem to be stable over seasons and years at the location on Haut Glacier d'Arolla. article_processing_charge: No article_type: original author: - first_name: I. full_name: Juszak, I. last_name: Juszak - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti citation: ama: 'Juszak I, Pellicciotti F. A comparison of parameterizations of incoming longwave radiation over melting glaciers: Model robustness and seasonal variability. Journal of Geophysical Research: Atmospheres. 2013;118(8):3066-3084. doi:10.1002/jgrd.50277' apa: 'Juszak, I., & Pellicciotti, F. (2013). A comparison of parameterizations of incoming longwave radiation over melting glaciers: Model robustness and seasonal variability. Journal of Geophysical Research: Atmospheres. American Geophysical Union. https://doi.org/10.1002/jgrd.50277' chicago: 'Juszak, I., and Francesca Pellicciotti. “A Comparison of Parameterizations of Incoming Longwave Radiation over Melting Glaciers: Model Robustness and Seasonal Variability.” Journal of Geophysical Research: Atmospheres. American Geophysical Union, 2013. https://doi.org/10.1002/jgrd.50277.' ieee: 'I. Juszak and F. Pellicciotti, “A comparison of parameterizations of incoming longwave radiation over melting glaciers: Model robustness and seasonal variability,” Journal of Geophysical Research: Atmospheres, vol. 118, no. 8. American Geophysical Union, pp. 3066–3084, 2013.' ista: 'Juszak I, Pellicciotti F. 2013. A comparison of parameterizations of incoming longwave radiation over melting glaciers: Model robustness and seasonal variability. Journal of Geophysical Research: Atmospheres. 118(8), 3066–3084.' mla: 'Juszak, I., and Francesca Pellicciotti. “A Comparison of Parameterizations of Incoming Longwave Radiation over Melting Glaciers: Model Robustness and Seasonal Variability.” Journal of Geophysical Research: Atmospheres, vol. 118, no. 8, American Geophysical Union, 2013, pp. 3066–84, doi:10.1002/jgrd.50277.' short: 'I. Juszak, F. Pellicciotti, Journal of Geophysical Research: Atmospheres 118 (2013) 3066–3084.' date_created: 2023-02-20T08:17:34Z date_published: 2013-04-27T00:00:00Z date_updated: 2023-02-21T10:10:46Z day: '27' doi: 10.1002/jgrd.50277 extern: '1' intvolume: ' 118' issue: '8' keyword: - Space and Planetary Science - Earth and Planetary Sciences (miscellaneous) - Atmospheric Science - Geophysics language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1002/jgrd.50277 month: '04' oa: 1 oa_version: Published Version page: 3066-3084 publication: 'Journal of Geophysical Research: Atmospheres' publication_identifier: issn: - 2169-897X publication_status: published publisher: American Geophysical Union quality_controlled: '1' scopus_import: '1' status: public title: 'A comparison of parameterizations of incoming longwave radiation over melting glaciers: Model robustness and seasonal variability' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 118 year: '2013' ... --- _id: '12640' abstract: - lang: eng text: Greater Himalayan glaciers are retreating and losing mass at rates comparable to glaciers in other regions of the world1,2,3,4,5. Assessments of future changes and their associated hydrological impacts are scarce, oversimplify glacier dynamics or include a limited number of climate models6,7,8,9. Here, we use results from the latest ensemble of climate models in combination with a high-resolution glacio-hydrological model to assess the hydrological impact of climate change on two climatically contrasting watersheds in the Greater Himalaya, the Baltoro and Langtang watersheds that drain into the Indus and Ganges rivers, respectively. We show that the largest uncertainty in future runoff is a result of variations in projected precipitation between climate models. In both watersheds, strong, but highly variable, increases in future runoff are projected and, despite the different characteristics of the watersheds, their responses are surprisingly similar. In both cases, glaciers will recede but net glacier melt runoff is on a rising limb at least until 2050. In combination with a positive change in precipitation, water availability during this century is not likely to decline. We conclude that river basins that depend on monsoon rains and glacier melt will continue to sustain the increasing water demands expected in these areas10. article_processing_charge: No article_type: letter_note author: - first_name: W. W. full_name: Immerzeel, W. W. last_name: Immerzeel - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti - first_name: M. F. P. full_name: Bierkens, M. F. P. last_name: Bierkens citation: ama: Immerzeel WW, Pellicciotti F, Bierkens MFP. Rising river flows throughout the twenty-first century in two Himalayan glacierized watersheds. Nature Geoscience. 2013;6(9):742-745. doi:10.1038/ngeo1896 apa: Immerzeel, W. W., Pellicciotti, F., & Bierkens, M. F. P. (2013). Rising river flows throughout the twenty-first century in two Himalayan glacierized watersheds. Nature Geoscience. Springer Nature. https://doi.org/10.1038/ngeo1896 chicago: Immerzeel, W. W., Francesca Pellicciotti, and M. F. P. Bierkens. “Rising River Flows throughout the Twenty-First Century in Two Himalayan Glacierized Watersheds.” Nature Geoscience. Springer Nature, 2013. https://doi.org/10.1038/ngeo1896. ieee: W. W. Immerzeel, F. Pellicciotti, and M. F. P. Bierkens, “Rising river flows throughout the twenty-first century in two Himalayan glacierized watersheds,” Nature Geoscience, vol. 6, no. 9. Springer Nature, pp. 742–745, 2013. ista: Immerzeel WW, Pellicciotti F, Bierkens MFP. 2013. Rising river flows throughout the twenty-first century in two Himalayan glacierized watersheds. Nature Geoscience. 6(9), 742–745. mla: Immerzeel, W. W., et al. “Rising River Flows throughout the Twenty-First Century in Two Himalayan Glacierized Watersheds.” Nature Geoscience, vol. 6, no. 9, Springer Nature, 2013, pp. 742–45, doi:10.1038/ngeo1896. short: W.W. Immerzeel, F. Pellicciotti, M.F.P. Bierkens, Nature Geoscience 6 (2013) 742–745. date_created: 2023-02-20T08:17:17Z date_published: 2013-09-13T00:00:00Z date_updated: 2023-02-21T10:46:37Z day: '13' doi: 10.1038/ngeo1896 extern: '1' intvolume: ' 6' issue: '9' keyword: - General Earth and Planetary Sciences language: - iso: eng month: '09' oa_version: None page: 742-745 publication: Nature Geoscience publication_identifier: eissn: - 1752-0908 issn: - 1752-0894 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Rising river flows throughout the twenty-first century in two Himalayan glacierized watersheds type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 6 year: '2013' ... --- _id: '12641' abstract: - lang: eng text: We investigate the sensitivity of a distributed enhanced temperature-index (ETI) melt model, in order to understand which parameters have the largest influence on model outputs and thus need to be accurately known. We use melt and meteorological data from two Alpine glaciers and one glacier in the Andes of Chile. Sensitivity analysis is conducted in a systematic way in terms of parameters and the different conditions (day, night, clear-sky, overcast), melt seasons and glaciers examined. The sensitivity of total melt to changes in individual parameters is calculated using a local method around the optimal value of the parameters. We verify that the parameters are optimal at the distributed scale and assess the model uncertainty induced by uncertainty in the parameters using a Monte Carlo technique. Model sensitivity to parameters is consistent across melt seasons, glaciers, different conditions and the daily statistics examined. The parameters to which the model is most sensitive are the shortwave-radiation factor, the temperature lapse rate for extrapolation of air temperature, the albedo parameters, the temperature threshold and the cloud transmittance factor parameters. A parameter uncertainty of 5% results in a model uncertainty of 5.6% of mean melt on Haut Glacier d’Arolla, Switzerland. article_processing_charge: No article_type: original author: - first_name: Martin full_name: Heynen, Martin last_name: Heynen - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti - first_name: Marco full_name: Carenzo, Marco last_name: Carenzo citation: ama: Heynen M, Pellicciotti F, Carenzo M. Parameter sensitivity of a distributed enhanced temperature-index melt model. Annals of Glaciology. 2013;54(63):311-321. doi:10.3189/2013aog63a537 apa: Heynen, M., Pellicciotti, F., & Carenzo, M. (2013). Parameter sensitivity of a distributed enhanced temperature-index melt model. Annals of Glaciology. International Glaciological Society. https://doi.org/10.3189/2013aog63a537 chicago: Heynen, Martin, Francesca Pellicciotti, and Marco Carenzo. “Parameter Sensitivity of a Distributed Enhanced Temperature-Index Melt Model.” Annals of Glaciology. International Glaciological Society, 2013. https://doi.org/10.3189/2013aog63a537. ieee: M. Heynen, F. Pellicciotti, and M. Carenzo, “Parameter sensitivity of a distributed enhanced temperature-index melt model,” Annals of Glaciology, vol. 54, no. 63. International Glaciological Society, pp. 311–321, 2013. ista: Heynen M, Pellicciotti F, Carenzo M. 2013. Parameter sensitivity of a distributed enhanced temperature-index melt model. Annals of Glaciology. 54(63), 311–321. mla: Heynen, Martin, et al. “Parameter Sensitivity of a Distributed Enhanced Temperature-Index Melt Model.” Annals of Glaciology, vol. 54, no. 63, International Glaciological Society, 2013, pp. 311–21, doi:10.3189/2013aog63a537. short: M. Heynen, F. Pellicciotti, M. Carenzo, Annals of Glaciology 54 (2013) 311–321. date_created: 2023-02-20T08:17:21Z date_published: 2013-08-01T00:00:00Z date_updated: 2023-02-21T10:43:42Z day: '01' doi: 10.3189/2013aog63a537 extern: '1' intvolume: ' 54' issue: '63' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.3189/2013aog63a537 month: '08' oa: 1 oa_version: Published Version page: 311-321 publication: Annals of Glaciology publication_identifier: eissn: - 1727-5644 issn: - 0260-3055 publication_status: published publisher: International Glaciological Society quality_controlled: '1' scopus_import: '1' status: public title: Parameter sensitivity of a distributed enhanced temperature-index melt model type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 54 year: '2013' ... --- _id: '1304' abstract: - lang: eng text: When confronted with a large-field stimulus rotating around the vertical body axis, flies display a following behavior called "optomotor response." As neural control elements, the large tangential horizontal system (HS) cells of the lobula plate have been prime candidates for long. Here, we applied optogenetic stimulation of HS cells to evaluate their behavioral role in Drosophila. To minimize interference of the optical activation of channelrhodopsin-2 with the visual perception of the flies, we used a bistable variant called ChR2-C128S. By applying pulses of blue and yellow light, we first demonstrate electrophysiologically that lobula plate tangential cells can be activated and deactivated repeatedly with no evident change in depolarization strength over trials. We next show that selective optogenetic activation of HS cells elicits robust yaw head movements and yaw turning responses in fixed and tethered flying flies, respectively. acknowledgement: 'This work was supported by the Max Planck Society. ' author: - first_name: Väinö full_name: Haikala, Väinö last_name: Haikala - first_name: Maximilian A full_name: Maximilian Jösch id: 2BD278E6-F248-11E8-B48F-1D18A9856A87 last_name: Jösch orcid: 0000-0002-3937-1330 - first_name: Alexander full_name: Borst, Alexander last_name: Borst - first_name: Alex full_name: Mauss, Alex S last_name: Mauss citation: ama: Haikala V, Jösch MA, Borst A, Mauss A. Optogenetic control of fly optomotor responses. Journal of Neuroscience. 2013;33(34):13927-13934. doi:10.1523/JNEUROSCI.0340-13.2013 apa: Haikala, V., Jösch, M. A., Borst, A., & Mauss, A. (2013). Optogenetic control of fly optomotor responses. Journal of Neuroscience. Society for Neuroscience. https://doi.org/10.1523/JNEUROSCI.0340-13.2013 chicago: Haikala, Väinö, Maximilian A Jösch, Alexander Borst, and Alex Mauss. “Optogenetic Control of Fly Optomotor Responses.” Journal of Neuroscience. Society for Neuroscience, 2013. https://doi.org/10.1523/JNEUROSCI.0340-13.2013. ieee: V. Haikala, M. A. Jösch, A. Borst, and A. Mauss, “Optogenetic control of fly optomotor responses,” Journal of Neuroscience, vol. 33, no. 34. Society for Neuroscience, pp. 13927–13934, 2013. ista: Haikala V, Jösch MA, Borst A, Mauss A. 2013. Optogenetic control of fly optomotor responses. Journal of Neuroscience. 33(34), 13927–13934. mla: Haikala, Väinö, et al. “Optogenetic Control of Fly Optomotor Responses.” Journal of Neuroscience, vol. 33, no. 34, Society for Neuroscience, 2013, pp. 13927–34, doi:10.1523/JNEUROSCI.0340-13.2013. short: V. Haikala, M.A. Jösch, A. Borst, A. Mauss, Journal of Neuroscience 33 (2013) 13927–13934. date_created: 2018-12-11T11:51:16Z date_published: 2013-01-01T00:00:00Z date_updated: 2021-01-12T06:49:45Z day: '01' doi: 10.1523/JNEUROSCI.0340-13.2013 extern: 1 intvolume: ' 33' issue: '34' month: '01' page: 13927 - 13934 publication: Journal of Neuroscience publication_status: published publisher: Society for Neuroscience publist_id: '5967' quality_controlled: 0 status: public title: Optogenetic control of fly optomotor responses type: journal_article volume: 33 year: '2013' ... --- _id: '1305' abstract: - lang: eng text: In the fly Drosophila melanogaster, photoreceptor input to motion vision is split into two parallel pathways as represented by first-order interneurons L1 and L2 (Rister et al., 2007; Joesch et al., 2010). However, how these pathways are functionally specialized remains controversial. One study (Eichner et al., 2011) proposed that the L1-pathway evaluates only sequences of brightness increments (ON-ON), while the L2-pathway processes exclusively brightness decrements (OFF-OFF). Another study (Clark et al., 2011) proposed that each of the two pathways evaluates both ON-ON and OFF-OFF sequences. To decide between these alternatives, we recorded from motionsensitive neurons in flies in which the output from either L1 or L2 was genetically blocked. We found that blocking L1 abolishes ON-ON responses but leaves OFF-OFF responses intact. The opposite was true, when the output from L2 was blocked. We conclude that the L1 and L2 pathways are functionally specialized to detect ON-ON and OFF-OFF sequences, respectively. acknowledgement: This work was supported by the Max-Planck-Society and the SFB 870 of the Deutsche Forschungsgemeinschaft. author: - first_name: Maximilian A full_name: Maximilian Jösch id: 2BD278E6-F248-11E8-B48F-1D18A9856A87 last_name: Jösch orcid: 0000-0002-3937-1330 - first_name: Franz full_name: Weber, Franz last_name: Weber - first_name: Hubert full_name: Eichner, Hubert last_name: Eichner - first_name: Alexander full_name: Borst, Alexander last_name: Borst citation: ama: Jösch MA, Weber F, Eichner H, Borst A. Functional specialization of parallel motion detection circuits in the fly. Journal of Neuroscience. 2013;33(3):902-905. doi:10.1523/JNEUROSCI.3374-12.2013 apa: Jösch, M. A., Weber, F., Eichner, H., & Borst, A. (2013). Functional specialization of parallel motion detection circuits in the fly. Journal of Neuroscience. Society for Neuroscience. https://doi.org/10.1523/JNEUROSCI.3374-12.2013 chicago: Jösch, Maximilian A, Franz Weber, Hubert Eichner, and Alexander Borst. “Functional Specialization of Parallel Motion Detection Circuits in the Fly.” Journal of Neuroscience. Society for Neuroscience, 2013. https://doi.org/10.1523/JNEUROSCI.3374-12.2013. ieee: M. A. Jösch, F. Weber, H. Eichner, and A. Borst, “Functional specialization of parallel motion detection circuits in the fly,” Journal of Neuroscience, vol. 33, no. 3. Society for Neuroscience, pp. 902–905, 2013. ista: Jösch MA, Weber F, Eichner H, Borst A. 2013. Functional specialization of parallel motion detection circuits in the fly. Journal of Neuroscience. 33(3), 902–905. mla: Jösch, Maximilian A., et al. “Functional Specialization of Parallel Motion Detection Circuits in the Fly.” Journal of Neuroscience, vol. 33, no. 3, Society for Neuroscience, 2013, pp. 902–05, doi:10.1523/JNEUROSCI.3374-12.2013. short: M.A. Jösch, F. Weber, H. Eichner, A. Borst, Journal of Neuroscience 33 (2013) 902–905. date_created: 2018-12-11T11:51:16Z date_published: 2013-01-16T00:00:00Z date_updated: 2021-01-12T06:49:45Z day: '16' doi: 10.1523/JNEUROSCI.3374-12.2013 extern: 1 intvolume: ' 33' issue: '3' month: '01' page: 902 - 905 publication: Journal of Neuroscience publication_status: published publisher: Society for Neuroscience publist_id: '5968' quality_controlled: 0 status: public title: Functional specialization of parallel motion detection circuits in the fly type: journal_article volume: 33 year: '2013' ... --- _id: '1308' abstract: - lang: eng text: We derive sufficient conditions for advection-driven backward motion of the free boundary in a chemotaxis model with degenerate mobility. In this model, a porous-medium-type diffusive term and an advection term are in competition. The former induces forward motion, the latter may induce backward motion of the free boundary depending on the direction of advection. We deduce conditions on the growth of the initial data at the free boundary which ensure that at least initially the advection term is dominant. This implies local backward motion of the free boundary provided the advection is (locally) directed appropriately. Our result is based on a new class of moving test functions and Stampacchia's lemma. As a by-product of our estimates, we obtain quantitative bounds on the spreading of the support of solutions for the chemotaxis model and provide a proof for the finite speed of the support propagation property of solutions. author: - first_name: Julian L full_name: Julian Fischer id: 2C12A0B0-F248-11E8-B48F-1D18A9856A87 last_name: Fischer orcid: 0000-0002-0479-558X citation: ama: Fischer JL. Advection-driven support shrinking in a chemotaxis model with degenerate mobility. SIAM Journal on Mathematical Analysis. 2013;45(3):1585-1615. doi:10.1137/120874291 apa: Fischer, J. L. (2013). Advection-driven support shrinking in a chemotaxis model with degenerate mobility. SIAM Journal on Mathematical Analysis. Society for Industrial and Applied Mathematics . https://doi.org/10.1137/120874291 chicago: Fischer, Julian L. “Advection-Driven Support Shrinking in a Chemotaxis Model with Degenerate Mobility.” SIAM Journal on Mathematical Analysis. Society for Industrial and Applied Mathematics , 2013. https://doi.org/10.1137/120874291. ieee: J. L. Fischer, “Advection-driven support shrinking in a chemotaxis model with degenerate mobility,” SIAM Journal on Mathematical Analysis, vol. 45, no. 3. Society for Industrial and Applied Mathematics , pp. 1585–1615, 2013. ista: Fischer JL. 2013. Advection-driven support shrinking in a chemotaxis model with degenerate mobility. SIAM Journal on Mathematical Analysis. 45(3), 1585–1615. mla: Fischer, Julian L. “Advection-Driven Support Shrinking in a Chemotaxis Model with Degenerate Mobility.” SIAM Journal on Mathematical Analysis, vol. 45, no. 3, Society for Industrial and Applied Mathematics , 2013, pp. 1585–615, doi:10.1137/120874291. short: J.L. Fischer, SIAM Journal on Mathematical Analysis 45 (2013) 1585–1615. date_created: 2018-12-11T11:51:17Z date_published: 2013-01-01T00:00:00Z date_updated: 2021-01-12T06:49:46Z day: '01' doi: 10.1137/120874291 extern: 1 intvolume: ' 45' issue: '3' month: '01' page: 1585 - 1615 publication: SIAM Journal on Mathematical Analysis publication_status: published publisher: 'Society for Industrial and Applied Mathematics ' publist_id: '5963' quality_controlled: 0 status: public title: Advection-driven support shrinking in a chemotaxis model with degenerate mobility type: journal_article volume: 45 year: '2013' ...