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[The Durkheim Test. Remarks on Susan Leigh Star's Boundary Objects].

Berichte zur Wissenschaftsgeschichte

Gießmann S.
PMID: 26333789
Ber Wiss. 2015 Sep;38(3):211-26. doi: 10.1002/bewi.201501724.

The article reconstructs Susan Leigh Star's conceptual work on the notion of 'boundary objects'. It traces the emergence of the concept, beginning with her PhD thesis and its publication as Regions of the Mind in 1989. 'Boundary objects' attempt...

Berry phase and band structure analysis of the Weyl semimetal NbP.

Scientific reports

Sergelius P, Gooth J, Bäßler S, Zierold R, Wiegand C, Niemann A, Reith H, Shekhar C, Felser C, Yan B, Nielsch K.
PMID: 27667203
Sci Rep. 2016 Sep 26;6:33859. doi: 10.1038/srep33859.

Weyl semimetals are often considered the 3D-analogon of graphene or topological insulators. The evaluation of quantum oscillations in these systems remains challenging because there are often multiple conduction bands. We observe de Haas-van Alphen oscillations with several frequencies in...

The epidemiology, pathogenesis, transmission, diagnosis, and management of multidrug-resistant, extensively drug-resistant, and incurable tuberculosis.

The Lancet. Respiratory medicine

Dheda K, Gumbo T, Maartens G, Dooley KE, McNerney R, Murray M, Furin J, Nardell EA, London L, Lessem E, Theron G, van Helden P, Niemann S, Merker M, Dowdy D, Van Rie A, Siu GK, Pasipanodya JG, Rodrigues C, Clark TG, Sirgel FA, Esmail A, Lin HH, Atre SR, Schaaf HS, Chang KC, Lange C, Nahid P, Udwadia ZF, Horsburgh CR, Churchyard GJ, Menzies D, Hesseling AC, Nuermberger E, McIlleron H, Fennelly KP, Goemaere E, Jaramillo E, Low M, Jara CM, Padayatchi N, Warren RM.
PMID: 28344011
Lancet Respir Med. 2017 Mar 15; doi: 10.1016/S2213-2600(17)30079-6. Epub 2017 Mar 15.

Global tuberculosis incidence has declined marginally over the past decade, and tuberculosis remains out of control in several parts of the world including Africa and Asia. Although tuberculosis control has been effective in some regions of the world, these...

Correlation-induced self-doping in the iron-pnictide superconductor Ba2Ti2Fe2As4O.

Physical review letters

Ma JZ, van Roekeghem A, Richard P, Liu ZH, Miao H, Zeng LK, Xu N, Shi M, Cao C, He JB, Chen GF, Sun YL, Cao GH, Wang SC, Biermann S, Qian T, Ding H.
PMID: 25615365
Phys Rev Lett. 2014 Dec 31;113(26):266407. doi: 10.1103/PhysRevLett.113.266407. Epub 2014 Dec 31.

The electronic structure of the iron-based superconductor Ba2Ti2Fe2As4O (Tc(onset)=23.5  K) has been investigated by using angle-resolved photoemission spectroscopy and combined local density approximation and dynamical mean field theory calculations. The electronic states near the Fermi level are dominated by...

Adherence to oral anticoagulant therapy in secondary stroke prevention - impact of the novel oral anticoagulants.

Patient preference and adherence

Luger S, Hohmann C, Niemann D, Kraft P, Gunreben I, Neumann-Haefelin T, Kleinschnitz C, Steinmetz H, Foerch C, Pfeilschifter W.
PMID: 26648702
Patient Prefer Adherence. 2015 Nov 23;9:1695-705. doi: 10.2147/PPA.S88994. eCollection 2015.

BACKGROUND: Oral anticoagulant therapy (OAT) potently prevents strokes in patients with atrial fibrillation. Vitamin K antagonists (VKA) have been the standard of care for long-term OAT for decades, but non-VKA oral anticoagulants (NOAC) have recently been approved for this...

[Central venous pressure - a safety parameter].

Der Anaesthesist

Siegler BH, Bernhard M, Brenner T, Gerlach H, Henrich M, Hofer S, John S, Kilger E, Krüger WA, Lichtenstern C, Mayer K, Müller M, Niemann B, Oppert M, Rex S, Rossaint R, Weiterer S, Weigand MA.
PMID: 26511034
Anaesthesist. 2015 Dec;64(12):977-980. doi: 10.1007/s00101-015-0106-7.

No abstract available.

Retracted article: In vitro derivation of mammalian germ cells from stem cells and their potential therapeutic application.

Cellular and molecular life sciences : CMLS

Saito S, Lin YC, Murayama Y, Nakamura Y, Eckner R, Niemann H, Yokoyama KK.
PMID: 26439925
Cell Mol Life Sci. 2015 Dec;72(23):4545-60. doi: 10.1007/s00018-015-2020-1. Epub 2015 Oct 06.

Pluripotent stem cells (PSCs) are a unique type of cells because they exhibit the characteristics of self-renewal and pluripotency. PSCs may be induced to differentiate into any cell type, even male and female germ cells, suggesting their potential as...

Environmental Noise Annoyance and Mental Health in Adults: Findings from the Cross-Sectional German Health Update (GEDA) Study 2012.

International journal of environmental research and public health

Hammersen F, Niemann H, Hoebel J.
PMID: 27681736
Int J Environ Res Public Health. 2016 Sep 26;13(10). doi: 10.3390/ijerph13100954.

The health implications of environmental noise, especially cardiovascular effects, have been studied intensively. Research on associations between noise and mental health, however, has shown contradictory results. The present study examined associations between individual levels of noise annoyance due to...

Gradual caldera collapse at Bárdarbunga volcano, Iceland, regulated by lateral magma outflow.

Science (New York, N.Y.)

Gudmundsson MT, Jónsdóttir K, Hooper A, Holohan EP, Halldórsson SA, Ófeigsson BG, Cesca S, Vogfjörd KS, Sigmundsson F, Högnadóttir T, Einarsson P, Sigmarsson O, Jarosch AH, Jónasson K, Magnússon E, Hreinsdóttir S, Bagnardi M, Parks MM, Hjörleifsdóttir V, Pálsson F, Walter TR, Schöpfer MP, Heimann S, Reynolds HI, Dumont S, Bali E, Gudfinnsson GH, Dahm T, Roberts MJ, Hensch M, Belart JM, Spaans K, Jakobsson S, Gudmundsson GB, Fridriksdóttir HM, Drouin V, Dürig T, Aðalgeirsdóttir G, Riishuus MS, Pedersen GB, van Boeckel T, Oddsson B, Pfeffer MA, Barsotti S, Bergsson B, Donovan A, Burton MR, Aiuppa A.
PMID: 27418515
Science. 2016 Jul 15;353(6296):aaf8988. doi: 10.1126/science.aaf8988.

Large volcanic eruptions on Earth commonly occur with a collapse of the roof of a crustal magma reservoir, forming a caldera. Only a few such collapses occur per century, and the lack of detailed observations has obscured insight into...

Matrix-assisted laser desorption ionization mass spectrometry with 2-(4-hydroxyphenylazo)benzoic acid matrix.

Journal of the American Society for Mass Spectrometry

Juhasz P, Costello CE, Biemann K.
PMID: 24234937
J Am Soc Mass Spectrom. 1993 May;4(5):399-409. doi: 10.1016/1044-0305(93)85005-I.

A novel matrix substance, 2-(4-hydroxyphenylazo) benzoic acid, or HABA, has been found to be very advantageous for matrix-assisted ultraviolet laser desorption ionization mass spectrometry. This compound has been successfully used for the desorption of peptides, proteins, and glycoproteins up...

Don't Lose Your Brain at Work - The Role of Recurrent Novelty at Work in Cognitive and Brain Aging.

Frontiers in psychology

Oltmanns J, Godde B, Winneke AH, Richter G, Niemann C, Voelcker-Rehage C, Schömann K, Staudinger UM.
PMID: 28220095
Front Psychol. 2017 Feb 06;8:117. doi: 10.3389/fpsyg.2017.00117. eCollection 2017.

Cognitive and brain aging is strongly influenced by everyday settings such as work demands. Long-term exposure to low job complexity, for instance, has detrimental effects on cognitive functioning and regional gray matter (GM) volume. Brain and cognition, however, are...

Synthesis and Characterization of Six-Coordinate Nitrido Complexes of Vanadium(V), Chromium(V), and Manganese(V). Isolation of a Dinuclear, Mixed-Valent &mgr;-Nitrido Chromium(III)/Chromium(V) Species.

Inorganic chemistry

Niemann A, Bossek U, Haselhorst G, Wieghardt K, Nuber B.
PMID: 11666264
Inorg Chem. 1996 Feb 14;35(4):906-915. doi: 10.1021/ic9508031.

Photolysis of a series of octahedral monoazido complexes of the type [LM(III)(didentate ligand)(N(3))](n)(+)X(n) of vanadium(III), chromium(III), and manganese(III) in the solid state or in solution yields quantitatively the corresponding six-coordinate nitrido complexes [LM(V)(didentate ligand)(N)](n)(+)X(n) and 1 equiv of dinitrogen....

Showing 1 to 12 of 451 entries