Domain-wall conduction in ferroelectric BiFeO3controlled by accumulation of charged defects
Trace elements as iron (Fe) serve a essential micronutrients in surface ocean waters. Fe in atmospheric dust deposition represents the main source of bioavailable Fe in HNLC (High Nutrient Low Chlorophyll) zones (e.g. the Southern Ocean). If natural emissions (soil dust) are the most important sources of atmospheric Fe, the aqueous solubility of natural Fe-bearing particles is very limited. Conversely, anthropogenic Fe-rich particles, as fly-ashes (combustion aerosols), display an higher solubility. Then, how human activities impact the transport ofbioavailable iron to the oceans remains a fundamental question addressed in atmospheric and oceanographic studies a moment ago.
With the recent advances in mass spectrometry, it is now possible to measure precisely small differences in Fe isotopic compositions, as they occur in many physical, geochemical and biological processes. If the isotopic signature of radiogenic isotopes, such as lead, has been widely used to assess the contribution of pollution aerosols to transport and deposition fluxes in the low troposphere, the use of non-traditional heavy stable isotopes, such as Fe, is still mostly unknown for atmospheric process studies. Now, if reported values for Fe isotopic fractionations in natural aerosols (soil dust: ?56Fe ? +0.08 /IRMM-014) are close to those of igneous rocks, our previous works showed ?56Fe reaching +0.14 in urban aerosols influenced by industrial emissions. In the present Project we will tentatively assess the isotopic imprint of atmospheric transport on anthropogenic Fe, by simulating cloud processes affecting industrial and urban Fe-bearing particles.
This Project is funded by the Region "Hauts de France" and the French Ministry for Higher Education and Research (CPER Climibio).
The ideal applicant will have:
A PhD in Analytical Chemistry or Geochemistry
Experience with isotopes studies and traces analyses
Experience with advanced instrumentation, such as mass spectrometry
Experience of field studies
Knowledge of security rules in the lab and on the field
Interest on presenting results at conferences and lead the writing of papers for peerreviewed journals
Ability to communicate and work with multiple students and scientists
Ability to travel to field studies and to the different regional partners sites (about 120 km away from Dunkirk): Drivers license for private car.
Location: Dunkerque (Dunkirk) North of France
Duration: 12 months, starting no later than January 1st 2017.
Monthly Take-home Pay: about 2000
Application: To apply, send to Pascal Flament, Universite du Littoral Cte dOpale, Dunkerque, France (firstname.lastname@example.org):
A Curriculum Vitae, including a publication list
A motivation letter
A selection of 2-3 publications in PDF
The name and contact information of 2 references.
Announcement in pdf: http://lpca.univ-littoral.fr/wp-content/uploads/2016/10/2017_Postdoc_PDA_aerosols_en.pdf
Junij 7, 2016
Julij 12, 2016
September 6, 2016
Oktober 11, 2016
November 15, 2016
December 13, 2016
Januar 17, 2017
Februar 14, 2017
Marec 14, 2017
April 11, 2017
Maj 16, 2017
Materials for the Senate meeting should be submitted at least 15 days before the meeting before 12 p.m. (midday).
The next diploma conferment ceremonies are scheduled for 22 December 2016 and 20 June 2017.
IPS obtained Erasmus Charter for Higher Education 2014-2020 and is participating in the ERASMUS program, which allows for exchanges of students and professors.
The candidates are requested to fill the bilateral agreement and provide information about the contact person at foreign university, starting date and length of requested exchange to IPS Secretariat (email@example.com).
The IPS Senate will decide on received proposals until the funds are available.
Erasmus Policy Statement, Erasmus Charter and draft of a Bilateral Agreement on Erasmus exchange are published among documents for collaborators.
More information: http://www.cmepius.si/vzu/erasmus.aspx