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Showing 25 to 36 of 707 entries
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A dramatic difference between the electron-driven dissociation of alcohols and ethers and its relation to Rydberg states.

Physical chemistry chemical physics : PCCP

Ibănescu BC, Allan M.
PMID: 18728865
Phys Chem Chem Phys. 2008 Sep 14;10(34):5232-7. doi: 10.1039/b806578k. Epub 2008 Jun 30.

A difference was observed in the reactivity of alcohols and ethers toward free electrons. Whereas the lowest core-excited state of the negative ion-a 2(n,3s2) Feshbach resonance-of the alcohols readily dissociates by losing a hydrogen atom, ethers show no observable...

Imaging sensor constellation for tomographic chemical cloud mapping.

Applied optics

Cosofret BR, Konno D, Faghfouri A, Kindle HS, Gittins CM, Finson ML, Janov TE, Levreault MJ, Miyashiro RK, Marinelli WJ.
PMID: 19340137
Appl Opt. 2009 Apr 01;48(10):1837-52. doi: 10.1364/ao.48.001837.

A sensor constellation capable of determining the location and detailed concentration distribution of chemical warfare agent simulant clouds has been developed and demonstrated on government test ranges. The constellation is based on the use of standoff passive multispectral infrared...

Neuroimaging in subclavian steal syndrome.

BMJ case reports

Boettinger M, Busl K, Schmidt-Wilcke T, Bogdahn U, Schuierer G, Schlachetzki F.
PMID: 21686421
BMJ Case Rep. 2009;2009. doi: 10.1136/bcr.11.2008.1198. Epub 2009 Mar 17.

No abstract available.

Unsubstituted bicyclo[1.1.0]but-2-ylcarbinyl cations.

The Journal of organic chemistry

Bentley TW, Engels B, Hupp T, Bogdan E, Christl M.
PMID: 16438515
J Org Chem. 2006 Feb 03;71(3):1018-26. doi: 10.1021/jo0519918.

A synthesis for the unsubstituted bicyclo[1.1.0]but-2-ylmethanols (endo- and exo-9) from 1,3-butadiene has been developed. Solvolyses of their sulfonates 10 and 11 took entirely different courses, as the endo compound 10 gave rise exclusively to rearranged products such as cyclopent-3-en-1-ol...

The relationship between plasma D-dimer concentrations and acute ischemic stroke subtypes.

Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association

Koch HJ, Horn M, Bogdahn U, Ickenstein GW.
PMID: 17904004
J Stroke Cerebrovasc Dis. 2005 Mar-Apr;14(2):75-9. doi: 10.1016/j.jstrokecerebrovasdis.2004.12.002.

Elevated concentrations of D-dimers (DDs) in patients with acute ischemic stroke may cause differential diagnostic problems with regard to pulmonary or deep venous thrombosis. The true relationship between plasma DDs and acute ischemic stroke remains uncertain. We studied acute...

Rarity of Somatic Mutation and Frequency of Normal Sequence Variation Detected in Sporadic Colon Adenocarcinoma Using High-Throughput cDNA Sequencing.

Bioinformatics and biology insights

Kan T, Paun BC, Mori Y, Sato F, Jin Z, Hamilton JP, Ito T, Cheng Y, David S, Olaru AV, Yang J, Agarwal R, Abraham JM, Meltzer SJ.
PMID: 18389087
Bioinform Biol Insights. 2007;1:1-16.

We performed high-throughput cDNA sequencing in colorectal adenocarcinoma and matching normal colorectal epithelium. All six hundred three genes in the UCSC database that were expressed in colon cancers and contained open reading frames of 1000 nucleotides or less were...

Forecasting a class of bifurcations: theory and experiment.

Physical review. E, Statistical, nonlinear, and soft matter physics

Lim J, Epureanu BI.
PMID: 21405756
Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Jan;83(1):016203. doi: 10.1103/PhysRevE.83.016203. Epub 2011 Jan 03.

Forecasting bifurcations before they occur is a significant challenge and an important need in several fields. Existing approaches detect bifurcations before they occur by exploiting the critical slowing down phenomenon. However, the perturbations used in those approaches are limited...

A biphasic oxidation of alcohols to aldehydes and ketones using a simplified packed-bed microreactor.

Beilstein journal of organic chemistry

Bogdan A, McQuade DT.
PMID: 19478910
Beilstein J Org Chem. 2009 Apr 29;5:17. doi: 10.3762/bjoc.5.17.

We demonstrate the preparation and characterization of a simplified packed-bed microreactor using an immobilized TEMPO catalyst shown to oxidize primary and secondary alcohols via the biphasic Anelli-Montanari protocol. Oxidations occurred in high yields with great stability over time. We...

Localization of BRCA1 protein in breast cancer tissue and cell lines with mutations.

Cancer cell international

Tulchin N, Ornstein L, Dikman S, Strauchen J, Jaffer S, Nagi C, Bleiweiss I, Kornreich R, Edelmann L, Brown K, Bodian C, Nair VD, Chambon M, Woods NT, Monteiro AN.
PMID: 23855721
Cancer Cell Int. 2013 Jul 15;13(1):70. doi: 10.1186/1475-2867-13-70.

BACKGROUND: The breast and ovarian cancer susceptibility gene (BRCA1) encodes a tumor suppressor. The BRCA1 protein is found primarily in cell nuclei and plays an important role in the DNA damage response and transcriptional regulation. Deficiencies in DNA repair...

Generation of high-purity higher-order Laguerre-Gauss beams at high laser power.

Physical review letters

Carbone L, Bogan C, Fulda P, Freise A, Willke B.
PMID: 23829725
Phys Rev Lett. 2013 Jun 21;110(25):251101. doi: 10.1103/PhysRevLett.110.251101. Epub 2013 Jun 18.

We have investigated the generation of highly pure higher-order Laguerre-Gauss (LG) beams at high laser power of order 100 W, the same regime that will be used by second-generation gravitational wave interferometers such as Advanced LIGO. We report on...

Downregulation in GATA4 and Downstream Structural and Contractile Genes in the db/db Mouse Heart.

ISRN endocrinology

Broderick TL, Jankowski M, Wang D, Danalache BA, Parrott CR, Gutkowska J.
PMID: 22474596
ISRN Endocrinol. 2012;2012:736860. doi: 10.5402/2012/736860. Epub 2012 Mar 13.

Reduced expression of GATA4, a transcriptional factor for structural and cardioprotective genes, has been proposed as a factor contributing to the development of cardiomyopathy. We investigated whether the reduction of cardiac GATA4 expression reported in diabetes alters the expression...

Hidden GeV-scale interactions of quarks.

Physical review letters

Dobrescu BA, Frugiuele C.
PMID: 25148315
Phys Rev Lett. 2014 Aug 08;113(6):061801. doi: 10.1103/PhysRevLett.113.061801. Epub 2014 Aug 05.

We explore quark interactions mediated by new gauge bosons of masses in the 0.3-50 GeV range. A tight upper limit on the gauge coupling of light Z(') bosons is imposed by the anomaly cancellation conditions in conjunction with collider...

Showing 25 to 36 of 707 entries