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Contemporary approaches to teacher professional development

professional

Borko H, Jacobs J, Koellner K.
GSID: BWqOlZJVCrgJ
H Borko, J Jacobs, K Koellner - International encyclopedia of …, 2010 - researchgate.net

… of teacher learning and professional practice, educational … and involve the formation of professional learning communities. … ,‘‘These forms of professional development were designed to …

Differential optical shadow sensor for sub-nanometer displacement measurement and its application to drag-free satellites.

Optics express

Zoellner A, Tan S, Saraf S, Alfauwaz A, DeBra D, Buchman S, Lipa JA.
PMID: 29041190
Opt Express. 2017 Oct 16;25(21):25201-25211. doi: 10.1364/OE.25.025201.

We present a method for 3D sub-nanometer displacement measurement using a set of differential optical shadow sensors. It is based on using pairs of collimated beams on opposite sides of an object that are partially blocked by it. Applied...

Identification of catalytic sites for oxygen reduction in iron- and nitrogen-doped graphene materials.

Nature materials

Zitolo A, Goellner V, Armel V, Sougrati MT, Mineva T, Stievano L, Fonda E, Jaouen F.
PMID: 26259106
Nat Mater. 2015 Sep;14(9):937-42. doi: 10.1038/nmat4367. Epub 2015 Aug 10.

While platinum has hitherto been the element of choice for catalysing oxygen electroreduction in acidic polymer fuel cells, tremendous progress has been reported for pyrolysed Fe-N-C materials. However, the structure of their active sites has remained elusive, delaying further...

Molecular Epidemiology of Carbapenem-Resistant Acinetobacter Baumannii Complex Isolates from Patients that were Injured During the Eastern Ukrainian Conflict.

European journal of microbiology & immunology

Granzer H, Hagen RM, Warnke P, Bock W, Baumann T, Schwarz NG, Podbielski A, Frickmann H, Koeller T.
PMID: 27429793
Eur J Microbiol Immunol (Bp). 2016 May 17;6(2):109-17. doi: 10.1556/1886.2016.00014. eCollection 2016 Jun 24.

This study addressed carbapenem-resistant Acinetobacter baumannii complex (ABC) isolates from patients that were injured during the military conflict in the Eastern Ukraine and treated at German Armed Forces Hospitals in 2014 and 2015. Clonal diversity of the strains and...

Mental symptoms in patients with cardiac symptoms and normal coronary arteries.

Open heart

Christoph M, Christoph A, Dannemann S, Poitz D, Pfluecke C, Strasser RH, Wunderlich C, Koellner V, Ibrahim K.
PMID: 25436115
Open Heart. 2014 Oct 07;1(1):e000093. doi: 10.1136/openhrt-2014-000093. eCollection 2014.

OBJECTIVES: Patients with chest pain and normal coronary arteries often suffer from physical and psychological symptoms. Therefore, this study aimed to examine the incidence of mental symptoms in patients with angiographic exclusion of a coronary heart disease.DESIGN: In 253...

[Not Available].

Berichte zur Wissenschaftsgeschichte

Toellner R.
PMID: 11629682
Ber Wiss. 1986;9(3):137-45. doi: 10.1002/bewi.19860090302.

No abstract available.

Crystal monochromator with a resolution beyond 10(8).

Journal of synchrotron radiation

Toellner TS, Hu MY, Sturhahn W, Bortel G, Alp EE, Zhao J.
PMID: 11486359
J Synchrotron Radiat. 2001 Jul 01;8(4):1082-6. doi: 10.1107/s0909049501007257.

Monochromatization with crystal diffraction has been achieved to a resolution (lambda/delta lambda) beyond 10(8). The monchromator is specifically designed for 23.880 keV synchrotron radiation (lambda = 51.9 pm) for applications involving nuclear resonant scattering from 119Sn. The design uses...

Passive Q Switching of a Diode-Pumped 946-nm Nd:YAG Laser with 1.6-W Average Output Power.

Applied optics

Kellner T, Heine F, Huber G, Kück S.
PMID: 18301527
Appl Opt. 1998 Oct 20;37(30):7076-9. doi: 10.1364/ao.37.007076.

As much as 1.6-W average output power was emitted in a simple setup from a diffusion-bonded Nd:YAG rod with 70-100-ns Q-switched pulses at 946 nm and repetition frequencies between 15 and 45 kHz at 22-W incident diode-pump power. A...

CeFePO: f-d hybridization and quenching of superconductivity.

Physical review letters

Holder MG, Jesche A, Lombardo P, Hayn R, Vyalikh DV, Danzenbächer S, Kummer K, Krellner C, Geibel C, Kucherenko Y, Kim TK, Follath R, Molodtsov SL, Laubschat C.
PMID: 20366999
Phys Rev Lett. 2010 Mar 05;104(9):096402. doi: 10.1103/PhysRevLett.104.096402. Epub 2010 Mar 05.

As a homologue to the new, Fe-based type of high-temperature superconductors, the electronic structure of the heavy-fermion compound CeFePO was studied by means of angle-resolved resonant photoemission. It was experimentally found-and later on confirmed by local-density approximation (LDA) as...

Discontinuous Hall coefficient at the quantum critical point in YbRh₂Si₂.

Journal of physics. Condensed matter : an Institute of Physics journal

Friedemann S, Oeschler N, Wirth S, Krellner C, Geibel C, Steglich F, Paschen S, Kirchner S, Si Q.
PMID: 21339569
J Phys Condens Matter. 2011 Mar 09;23(9):094216. doi: 10.1088/0953-8984/23/9/094216.

YbRh2Si2 is a model system for quantum criticality. In particular, Hall effect measurements helped identify the unconventional nature of its quantum critical point. Here, we present a high-resolution study of the Hall effect and magnetoresistivity on samples of different...

Physical properties and crystal chemistry of Ce2Ga12Pt.

Journal of physics. Condensed matter : an Institute of Physics journal

Sichevych O, Krellner C, Prots Y, Grin Y, Steglich F.
PMID: 22641115
J Phys Condens Matter. 2012 Jun 27;24(25):256006. doi: 10.1088/0953-8984/24/25/256006. Epub 2012 May 28.

Single crystals of the new ternary compound Ce(2)Ga(12)Pt were prepared by the self-flux technique. The crystal structure with the space group P4/nbm was established from single crystal x-ray diffraction data and presents a derivative of the LaGa(6)Ni(0.6) prototype. Magnetic...

Time resolved nuclear resonant scattering from 119Sn nuclei using synchrotron radiation.

Physical review letters

Alp EE, Gerdau E, Homma H, Kentjana M, Mooney TM, Röhlsberger R, Sturhahn W, Toellner T, Witthoff E.
PMID: 10053846
Phys Rev Lett. 1993 May 24;70(21):3351-3354. doi: 10.1103/PhysRevLett.70.3351.

No abstract available.

Showing 1 to 12 of 155 entries