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Showing 1 to 12 of 583 entries
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Synthesis of highly monodisperse porous manganese oxide spheres using a butyric acid microemulsion.

Chemical communications (Cambridge, England)

Ching S, Richter IJ, Tutunjian KA, Kriz DA, Kovic Y.
PMID: 25531308
Chem Commun (Camb). 2015 Feb 04;51(10):1961-4. doi: 10.1039/c4cc06634k.

Porous manganese oxide spheres form readily from a reaction between KMnO4 and n-butanol in aqueous butyric acid under ambient conditions. Spheres have uniform size, tuneable diameters and high surface areas. The material is an active catalyst for the oxidation...

Reconsidering Depression in the Elderly.

The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry

Caine ED, Lyness JM, King DA.
PMID: 28530945
Am J Geriatr Psychiatry. 1993 Winter;1(1):4-20. doi: 10.1097/00019442-199300110-00003. Epub 2013 Jan 28.

The authors present a literature review and a scientific commentary. The prevalence of depressive disorders in the elderly and their association with significant morbidity and mortality are discussed in relation to study of clinical heterogeneity, which may provide useful...

The Sentinel Node for Staging Breast Cancer: Current Review.

Breast cancer (Tokyo, Japan)

Krag DN.
PMID: 11091722
Breast Cancer. 1999 Jul 25;6(3):233-236. doi: 10.1007/BF02967176.

From the first to the second half of this century, the concept of removing lymph nodes in patients with breast cancer has evolved from a therapeutic procedure to a staging procedure. While the concept has evolved, the method of...

Use of intravenous antiarrhythmics to identify concealed Brugada syndrome.

Current controlled trials in cardiovascular medicine

Brugada R.
PMID: 11714408
Curr Control Trials Cardiovasc Med. 2000;1(1):45-47. doi: 10.1186/cvm-1-1-045.

Cardiology has recently witnessed the production of an overwhelming amount of data through the advances made in genetics and molecular biology research. Understanding of genetics has tremendous potential to aid in the prevention, diagnosis and treatment of the majority...

Dense ice in detail.

Nature

Klug DD.
PMID: 12490928
Nature. 2002 Dec 19-26;420(6917):749, 751. doi: 10.1038/420749a.

No abstract available.

A multimer model for P680, the primary electron donor of photosystem II.

Proceedings of the National Academy of Sciences of the United States of America

Durrant JR, Klug DR, Kwa SL, van Grondelle R, Porter G, Dekker JP.
PMID: 11607546
Proc Natl Acad Sci U S A. 1995 May 23;92(11):4798-802. doi: 10.1073/pnas.92.11.4798.

We consider a model of the photosystem II (PS II) reaction center in which its spectral properties result from weak (approximately 100 cm-1) excitonic interactions between the majority of reaction center chlorins. Such a model is consistent with a...

Identification of general linear relationships between activation energies and enthalpy changes for dissociation reactions at surfaces.

Journal of the American Chemical Society

Michaelides A, Liu ZP, Zhang CJ, Alavi A, King DA, Hu P.
PMID: 12656593
J Am Chem Soc. 2003 Apr 02;125(13):3704-5. doi: 10.1021/ja027366r.

The activation energy to reaction is a key quantity that controls catalytic activity. Having used ab inito calculations to determine an extensive and broad ranging set of activation energies and enthalpy changes for surface-catalyzed reactions, we show that linear...

Light-atom location in adsorbed benzene by experiment and theory.

Physical review letters

Held G, Braun W, Steinrück HP, Yamagishi S, Jenkins SJ, King DA.
PMID: 11736353
Phys Rev Lett. 2001 Nov 19;87(21):216102. doi: 10.1103/PhysRevLett.87.216102. Epub 2001 Nov 01.

Locations of light atoms in C6D6 on Ru[0001] have been determined by low energy electron diffraction (LEED) and density functional theory (DFT). For the favored site/orientation in the p(square root of [7] x square root of [7])-R19 degrees phase,...

Step-enhanced selectivity of NO reduction on platinum-group metals.

Journal of the American Chemical Society

Liu ZP, Jenkins SJ, King DA.
PMID: 14640613
J Am Chem Soc. 2003 Dec 03;125(48):14660-1. doi: 10.1021/ja0372208.

The conversion of NO to N2 is a key issue encountered in the control of emission from vehicles. The selectivity of NO reduction on two platinum group metals, Ir and Pt, including the close-packed flat surface and the monatomic...

Tree allometry, leaf size and adult tree size in old-growth forests of western Oregon.

Tree physiology

King DA.
PMID: 14972848
Tree Physiol. 1991 Oct;9(3):369-81. doi: 10.1093/treephys/9.3.369.

Relationships between tree height and crown dimensions and trunk diameter were determined for shade-tolerant species of old-growth forests of western Oregon. The study included both understory and overstory species, deciduous and evergreen angiosperms and evergreen conifers. A comparison of...

Adding a length scale to the polyamorphic ice debate.

Physical review letters

Tulk CA, Hart R, Klug DD, Benmore CJ, Neuefeind J.
PMID: 17025899
Phys Rev Lett. 2006 Sep 15;97(11):115503. doi: 10.1103/PhysRevLett.97.115503. Epub 2006 Sep 14.

X-ray scattering and molecular dynamics simulations have been used to correlate the short range oxygen-oxygen structure with the intermediate range ordering (IRO) upon annealing very high density amorphous ice. While it is clear that the IRO that defines the...

Role of nanostructured dual-oxide supports in enhanced catalytic activity: theory of CO oxidation over Au/IrO2/TiO2.

Physical review letters

Liu ZP, Jenkins SJ, King DA.
PMID: 15524905
Phys Rev Lett. 2004 Oct 08;93(15):156102. doi: 10.1103/PhysRevLett.93.156102. Epub 2004 Oct 06.

The synergetic effect in multicomponent catalysts is a topic of profound industrial importance and intense academic interest. On a newly identified multicomponent catalyst, Au/IrO(2)/TiO(2), first-principles density-functional theory is analyzed to clarify the outstanding catalytic activity of the system for...

Showing 1 to 12 of 583 entries