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Showing 13 to 24 of 352 entries
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A Versatile and High-Yield Route to Active and Well-Defined Catalysts.

Angewandte Chemie (International ed. in English)

Wiles JA, Bergens SH, Vanhessche KP, Dobbs DA, Rautenstrauch V.
PMID: 11353464
Angew Chem Int Ed Engl. 2001 May 04;40(9):1573. doi: 10.1002/1521-3773(20010504)40:9<1573::aid-anie15731>3.3.co;2-a.

No abstract available.

Regulation of De-N-Glycosylation Enzymes in Germinating Radish Seeds.

Plant physiology

Berger S, Menudier A, Julien R, Karamanos Y.
PMID: 12226389
Plant Physiol. 1996 Sep;112(1):259-264. doi: 10.1104/pp.112.1.259.

The activities of the de-N-glycosylation enzymes endo-N-acetyl- [beta]-D-glucosaminidase (ENGase; EC 3.2.1.96) and peptide-N4- (N-acetyl-[beta]-D-glucosaminyl) asparagine amidase (PNGase; EC 3.5.1.52) were monitored during germination and postgerminative development in radish (Raphanus sativus L. cv Flamboyant). The ENGase activity was detected only...

Measuring the porosity and the tortuosity of porous materials via reflected waves at oblique incidence.

The Journal of the Acoustical Society of America

Fellah ZE, Berger S, Lauriks W, Depollier C, Aristégui C, Chapelon JY.
PMID: 12765361
J Acoust Soc Am. 2003 May;113(5):2424-33. doi: 10.1121/1.1567275.

An ultrasonic reflectivity method is proposed for measuring porosity and tortuosity of porous materials having a rigid frame. Porosity is the relative fraction by volume of the air contained within a material. Tortuosity is a geometrical parameter which intervenes...

Deconstructing anti-harm-reduction metaphors; mortality risk from falls and other traumatic injuries compared to smokeless tobacco use.

Harm reduction journal

Phillips CV, Guenzel B, Bergen P.
PMID: 16620387
Harm Reduct J. 2006 Apr 18;3:15. doi: 10.1186/1477-7517-3-15.

Anti-harm-reduction advocates sometimes resort to pseudo-analogies to ridicule harm reduction. Those opposed to the use of smokeless tobacco as an alternative to smoking sometimes suggest that the substitution would be like jumping from a 3 story building rather than...

Electronic properties of furyl substituents at phosphorus and their influence on 31P NMR chemical shifts.

Journal of the American Chemical Society

Ackermann M, Pascariu A, Höcher T, Siehl HU, Berger S.
PMID: 16802808
J Am Chem Soc. 2006 Jul 05;128(26):8434-40. doi: 10.1021/ja057085u.

The electronic properties of 2-furyl and 3-furyl substituents attached to phosphanes and phosphonium salts were studied by means of IR spectroscopy and experimental and computational (31)P NMR spectroscopy. The heteroaromatic systems proved to be electron withdrawing with respect to...

The WAIS-R factors: usefulness and construct validity in neuropsychological assessments.

Applied neuropsychology

Berger S.
PMID: 16318465
Appl Neuropsychol. 1998;5(1):37-42. doi: 10.1207/s15324826an0501_5.

One-hundred and twelve patients were administered the Wechsler Adult Intelligence Scale-Revised (WAIS-R), an abbreviated Wechsler Memory Scale-Revised, and the Halstead-Reitan Neuropsychological Test Battery. In order to replicate an earlier study (Sherman, Strauss, Spellacy, & Hunter, 1995), correlations were generated...

Development, methodology and potential of the new Universal Visual Scoring System (UniViSS) for caries detection and diagnosis.

International journal of environmental research and public health

Kühnisch J, Goddon I, Berger S, Senkel H, Bücher K, Oehme T, Hickel R, Heinrich-Weltzien R.
PMID: 19826559
Int J Environ Res Public Health. 2009 Sep;6(9):2500-9. doi: 10.3390/ijerph6092500. Epub 2009 Sep 23.

Given the limitations of adjunct caries detection and diagnostic tools, e.g., imperfect validity and reproducibility, as well as the difficulties in controlling all possible confounding factors, the need for an objective visual caries detection and diagnosis system has become...

Cardiopulmonary resuscitation - automated external defibrillation programs for children and adolescents: Is public access defibrillation directed at our youth justifiable?.

Paediatrics & child health

Berger S.
PMID: 20190901
Paediatr Child Health. 2009 Mar;14(3):183-4. doi: 10.1093/pch/14.3.183.

No abstract available.

Direct observations of the metal-ligand bifunctional addition step in an enantioselective ketone hydrogenation.

Journal of the American Chemical Society

Hamilton RJ, Bergens SH.
PMID: 18702465
J Am Chem Soc. 2008 Sep 10;130(36):11979-87. doi: 10.1021/ja8034812. Epub 2008 Aug 15.

The catalytic intermediate trans-[Ru((R)-BINAP)(H)2((R,R)-dpen)] (1) reacted on mixing with acetophenone in THF at -80 degrees C under approximately 2 atm H2 to generate the alkoxide trans-Ru((R)-BINAP)(H)((Ph)(Me)CHO)((R,R)-dpen) (6). Contrary to expectations, free Ru-amide and 1-phenylethanol were not the immediate products...

Experimental investigations of a partial Ru-O bond during the metal-ligand bifunctional addition in Noyori-type enantioselective ketone hydrogenation.

Journal of the American Chemical Society

Takebayashi S, Dabral N, Miskolzie M, Bergens SH.
PMID: 21634401
J Am Chem Soc. 2011 Jun 29;133(25):9666-9. doi: 10.1021/ja202732q. Epub 2011 Jun 06.

The transition state for the metal-ligand bifunctional addition step in Noyori's enantioselective ketone hydrogenation was investigated using intramolecular trapping experiments. The bifunctional addition between the Ru dihydride trans-[Ru((R)-BINAP)(H)(2)((R,R)-dpen)] and the hydroxy ketone 4-HOCH(2)C(6)H(4)(CO)CH(3) at -80 °C exclusively formed the...

Experimental realization of non-Abelian non-adiabatic geometric gates.

Nature

Abdumalikov AA, Fink JM, Juliusson K, Pechal M, Berger S, Wallraff A, Filipp S.
PMID: 23594739
Nature. 2013 Apr 25;496(7446):482-5. doi: 10.1038/nature12010. Epub 2013 Apr 17.

The geometric aspects of quantum mechanics are emphasized most prominently by the concept of geometric phases, which are acquired whenever a quantum system evolves along a path in Hilbert space, that is, the space of quantum states of the...

An American experiment in prison reform.

The Eugenics review

Bergen H.
PMID: 21259617
Eugen Rev. 1916 Apr;8(1):65-7.

No abstract available.

Showing 13 to 24 of 352 entries