I am also interested in rare isotope signatures, such as oxygen isotope anomalies (17O-excess, Δ(17O)) and multiply-substituted isotopologues (clumped isotopes) such as 15N15NO. Front row, from left to right: David Gnandt, Christian "Widu" Wittekindt (institute's system administrator), Jetmir Haxhija, Back row, from left to right: Mike Castellano, Thorsten Koslowski, Katharina Jahnke, Nora Kremer, Jan Kaiser, Safa ben Amara. Machen auch Sie sich ein Bild! Deadline: 12 January 2021. Group and guests. Oxygen/argon ratios allow separation of physical and biological effects on gas concentrations and provide net community production estimates on unprecedentedly fine scales. I discovered that during photolysis the central nitrogen position always becomes more enriched in 15N than the terminal one, but that during photo-oxidation the opposite position-dependent fractionation occurs. The N2O work led on to the first online gas chromatography-isotope ratio mass spectrometric method to measure Δ(17O) of nitrate, which drastically reduced sample sizes and enabled seawater analyses. As a member of the UEA Glider Group, I have been involved with deployments of oxygen sensors (optodes) on autonomous float (NAB 2008) and glider (GOPINA) platforms, in order to provide vital data on the oceanic carbon cycle and biological productivity estimates in a changing climate. All at Altbau Physikalische Chemie, Albertstr. Jan Martin Tel. I have led studies on the isotopic composition of atmospheric N2O, emphasizing position-dependent 15N/14N isotope ratio measurements and the fate of N2O in stratospheric photolysis and photo-oxidation. View graph of relations I study global chemical, physical and biological processes in the Earth's atmosphere and oceans, and their variations through time under natural and anthropogenic influences, by integrating fieldwork, laboratory studies and modelling into a coherent framework, often involving the use of stable isotopes. Low sample size requirements make this technique suitable for ice core studies of past changes in the atmospheric oxidation capacity. Δ(17O) combined with nitrogen isotope ratios were used to understand the annual cycle of nitrate in coastal Antarctica, uncovering stratospheric influences and re-evaporation from surface snow. (0761) 3858 - 164 E-Mail: markus.kessner@freiburg.ihk.de: Ansprechpartner “ValiKom Transfer“ – Abschlussbezogene Validierung non-formal und informell erworbener Kompetenzen. Markus Keßner Tel. View the profiles of people named Jan Kaiser. Apply for an @ARIES_DTP PhD project 'What causes ozone depletion events and bromine explosions in the polar atmosphere? In laboratory experiments, I studied temperature- and wavelength-dependent isotope effects in N2O photolysis. 1999. I study global chemical, physical and biological processes in the Earth's atmosphere and oceans, and their variations through time under natural and anthropogenic influences, by integrating fieldwork, laboratory studies and modelling into a coherent framework, often involving the use of stable isotopes. KAISER & SOZIEN Partnerschaft mbB . Branchenzuordnung. () Suche Jobs von Jan Kaiser (Rewe) Supermärkte aus Uslar. Show more<\/a> Show less<\/a>','flash_missing':'You need to install Adobe Flash player in order to view this graph','flash_old':'The version of Adobe Flash player is too old','visit':'Visit page','focus':'Focus on this'},'context':'\/portal'}); Jan KAISER, Professor of Biogeochemistry of University of East Anglia, Norwich (UEA) | Read 168 publications | Contact Jan KAISER View the profiles of professionals named "Jan Kaiser" on LinkedIn. David GnandtR 1003/1004, voice: (+49)761-203-6175E-mail: David.Gnandt Research: protein dielectrics, Jan Kaiser MScR 1003/1004, voice: (+49)761-203-6175E-mail: Jan.Kaiser Research: protein Monte Carlo, Nora Kremer MScR 1003/1004, voice: (+49)761-203-6175. e-Mail extension: physchem.uni-freiburg.de. Se profiler for personer med navnet “Jan Kaiser” på LinkedIn. 23a, 79104 Freiburg. Lehrbeauftragter an der Albert-Ludwigs-Universität Freiburg . Centre for Ocean and Atmospheric Sciences, Interdisciplinary Institute for the Humanities, Politics, Philosophy, Language and Communication Studies, 'Stable isotope investigations of atmospheric nitrous oxide', 'Sulphur isotope exchange and disproportionation of thiosulphate'. All rights reserved. Chronik. Former members (Postdoc, PhD, Diploma, Zula), Dr. Sehee Na, Dr. Anna Bauß, Dr. Andreas Schöppach, Dr. Maria Schill, Dr. Fabian Burggraf, Dr. Benjamin Lampe, Dr. Sebastian Krapf, Sebastian Rombach, Ellen Rudolf, Astrid Waldvogel, Hanne Lena Lamparter, Martin Joos, Sebastian Krötz, Dr. Thomas Steinbrecher, Sandra Kruse, Martin Hügle, Dr. Gundi Rink, Simon Maier, Matthias Rateitzak, Georg Ganzenmueller PhD, Dr. Tobias Cramer, Dr. Nadine Utz, Dr. Christian Wittekindt, Dr. Claudia Mangold, Anne Staehle, Anke Wilkening, Atomistic models of chemical and biological charge transfer, Numerical and simulation methods for complex systems, Bunsengesellschaft für Physikalische Chemie, https://www.theochem.uni-freiburg.de/the-group/the-group. Kaiser-Joseph-Str. I have led studies on the isotopic composition of atmospheric N2O, emphasizing position-dependent 15N/14… Ernennung zum Fachanwalt für Insolvenzrecht . Kaiser Group website: https://kaiserlab.org. The instrument continuously measures dissolved oxygen, nitrogen, argon and CO2. Perlentaucher-Debatte Literaturkritik im Netz: Angestoßen von Wolfram Schütte.Mit Beiträgen von Sieglinde Geisel, Jan Dress und anderen; Daniele Dell'Agli: Aufruhr im Zwischenreich: Plädoyer für eine Befreiung des Themas Sterbehilfe aus dem Griff der Politik und mit ihr paktierender Verbandseliten; Monotheismus-Debatte im Perlentaucher: Angestoßen von Jan Assmann. Der er 100+ personer med navnet “Jan Kaiser”, der bruger LinkedIn til at udveksle oplysninger, idéer og muligheder. Der er 100+ personer med navnet “Jan Kaiser”, der bruger LinkedIn til at udveksle oplysninger, idéer og muligheder. Jan Kaiser is on Facebook. Freiburg liegt im Südwesten Baden-Württembergs am südöstlichen Rand des Oberrheingrabens sowie großteils in der Freiburger Bucht und am westlichen Fuße des Schwarzwaldes.Die nächstgelegenen Großstädte sind: Mülhausen (frz. Die Narren in Häusern und … Jan Kaiser betreibt in Uslar zwei Rewe-Supermärkte die von der Rewe-Nord beliefert werden. ', involving the Roland von Glasow Air-Sea-Ice Chamber and fieldwork possibilities with the British Antarctic Survey. (0761) 3858 - 143 E-Mail: ulrike.foehner@freiburg.ihk.de. More recent work included studies of N2O and nitrate in marine and terrestrial environments as well as measurements of the chlorine (37Cl/35Cl) and carbon (13C/12C) of volatile organic compounds. AIESEC Alumni There are 100+ professionals named "Jan Kaiser", who use LinkedIn to exchange information, ideas, and opportunities. © UEA. Join Facebook to connect with Jan Kaiser and others you may know. Auch Stellenangebote von Jan Kaiser (Rewe) können Sie hier finden. Wyświetl profile specjalistów o nazwisku „Jan Kaiser” na LinkedIn. Telephone: +44 (0) 1603 456161 Accessibility Legal Statements . This pattern allowed me to distinguish photolysis and photo-oxidation in the stratosphere. 100+ specjalistów o nazwisku „Jan Kaiser” korzysta z LinkedIn, aby dzielić się informacjami, pomysłami i możliwościami kariery. This approach has been applied to nitrous oxide (N2O), nitrate, oxygen, nitrogen, argon and CO2. Das Team unserer Kanzlei in Freiburg steht Ihnen bei der Mandatsbetreuung jederzeit gerne zur Verfügung. What causes ozone depletion events and bromine explosions in the polar atmosphere. Honorarprofessor der Albert-Ludwigs-Universität Freiburg . Ausbildungsbegleiter. 1993 – 1995. seit 2005. . The small 17O-excess of atmospheric N2O motivated me to consider how best to characterise such anomalies. (0761) 3858 - 141 E-Mail: jan.martin@freiburg.ihk.de. Se profiler for personer med navnet “Jan Kaiser” på LinkedIn. Bliv medlem af Facebook, og få kontakt med Jan Kaiser og andre, du måske kender. The University of Freiburg 1st & 2nd Law State Exam Business, Trade, and Tax Laws. This approach has been applied to nitrous oxide (N2O), nitrate, oxygen, nitrogen, argon and CO2. Contact. University of East Anglia, Norwich Research Park, Norwich, Norfolk, NR4 7TJ, UK. Bestellung zum Wirtschaftsprüfer . Katharina Jahnke MSc R 3020, voice: (+49)761-203-6228 E-mail: Katharina.Jahnke Nitrate isotope analysis: We offer nitrogen (15N/14N) and oxygen (18O/16O, 17O/16O) isotopic analyses of nitrate (NO3–) as analytical service, see here for more information. This work allowed reconstruction of past changes and demonstrated increasing agricultural influences on atmospheric N2O. Jan Kaiser Director, Head of Corporate Accounting at Atotech Group Berlin und Umgebung, Deutschland 500+ Kontakte Katharina Jahnke MScR 3020, voice: (+49)761-203-6228E-mail: Katharina.JahnkeResearch: charge transport through membrane proteins, Dipl.-Chem. -->. 260, 79098 Freiburg im Breisgau (Altstadt) geschlossen, öffnet in 3 Stunden und 15 Min. Vis profiler af personer, der hedder Jan Kaiser. Join Facebook to connect with Jan Kaiser and others you may know. BZ-INTERVIEW mit Jan Kaiser, dem neuen Zunftmeister der Narrenzunft "Hüsemer Hase", über die kommende Fastnachtssaison. Click here for other current PhD opportunities in the School of Environmental Sciences. Group and guests. new portal.GraphViewer({'element':'j_id912988066_416d827f','renderTarget':'flash','content':{id:'90d8a961-acf0-40f4-a85d-d5558d22c184',type:'dk.atira.pure.api.shared.model.person.Person'},'language':'en','texts':{'force':'Floating','circle':'Circle','radial':'Radial','reduced':'The graph is reduced to the latest content because there is too much data to show. I developed analytical methods to accurately measure N2O isotopes in troposphere, stratosphere, polar firn air and ice.