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Showing 25 to 36 of 101 entries
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Aggregation of [Au(CN)4]- anions: examination by crystallography and 15N CP-MAS NMR and the structural factors influencing intermolecular Au···N interactions.

Inorganic chemistry

Geisheimer AR, Wren JE, Michaelis VK, Kobayashi M, Sakai K, Kroeker S, Leznoff DB.
PMID: 21268652
Inorg Chem. 2011 Feb 21;50(4):1265-74. doi: 10.1021/ic101782v. Epub 2011 Jan 26.

To investigate the factors influencing the formation of intermolecular Au···NC interactions between [Au(CN)(4)](-) units, a series of [cation](n+)[Au(CN)(4)](n) double salts was synthesized, structurally characterized and probed by IR and (15)N{(1)H} CP-MAS NMR spectroscopy. Thus, [(n)Bu(4)N][Au(CN)(4)], [AsPh(4)][Au(CN)(4)], [N(PPh(3))(2)][Au(CN)(4)], [Co(1,10-phenanthroline)(3)][Au(CN)(4)](2), and...

Structure and multinuclear solid-state NMR of a highly birefringent lead-gold cyanide coordination polymer.

Journal of the American Chemical Society

Katz MJ, Aguiar PM, Batchelor RJ, Bokov AA, Ye ZG, Kroeker S, Leznoff DB.
PMID: 16536539
J Am Chem Soc. 2006 Mar 22;128(11):3669-76. doi: 10.1021/ja0566634.

The coordination polymer Pb(H2O)[Au(CN)2]2 (1) was synthesized by the reaction of KAu(CN)2 and Pb(NO3)2. The structure contains 1-D chains of lead(II)-OH2 linked via Au(CN)2(-) moieties, generating a 2-D slab; weak aurophilic interactions of 3.506(2) and 3.4885(5) A occur within...

Increased epithelial gaps in the small intestine are predictive of hospitalization and surgery in patients with inflammatory bowel disease.

Clinical and translational gastroenterology

Turcotte JF, Wong K, Mah SJ, Dieleman LA, Kao D, Kroeker K, Claggett B, Saltzman JR, Wine E, Fedorak RN, Liu JJ.
PMID: 23238291
Clin Transl Gastroenterol. 2012 Jul 26;3:e19. doi: 10.1038/ctg.2012.13.

OBJECTIVES: Epithelial gaps resulting from intestinal cell extrusions can be visualized with confocal laser endomicroscopy (CLE) during colonoscopy and increased in normal-appearing terminal ileum of inflammatory bowel disease (IBD) patients. Cell-shedding events on CLE were found to be predictive...

Operation of continuous-wave 12-Mum Raman lasers in NH3 with pump offsets as large as 1.35 GHz.

Optics letters

Kroeker DF, Reid J, Garside BK, Rolland C.
PMID: 19730612
Opt Lett. 1986 May 01;11(5):300. doi: 10.1364/ol.11.000300.

No abstract available.

Small signal gain and vibrational relaxation for (13)CO(2).

Applied optics

Kroeker DF, Defaccio MA, Pindroh AL, Guyer DR, Fisher CH, Moody SE.
PMID: 20548581
Appl Opt. 1989 Mar 01;28(5):897-900. doi: 10.1364/AO.28.000897.

We have determined the small signal gain for the P(18) transition of the (13)CO(2) and (12)CO(2) isotopes for identical pumping conditions in an x-ray preionized discharge amplifier. We have also determined vibrational-relaxation rate constants for He, N(2), and (13)CO(2)...

Magnetic properties, Mössbauer, and specific-heat studies of RBa2Fe3O8 (R=Y,Eu) compounds.

Physical review. B, Condensed matter

Bauminger ER, Cohen O, Czjzek G, Felner I, Kroener T, Nowik I, Yaron U.
PMID: 10008164
Phys Rev B Condens Matter. 1993 Dec 01;48(21):16040-16046. doi: 10.1103/physrevb.48.16040.

No abstract available.

Silicon wire grid polarizer for ultraviolet applications.

Applied optics

Weber T, Kroker S, Käsebier T, Kley EB, Tünnermann A.
PMID: 25607974
Appl Opt. 2014 Dec 01;53(34):8140-4. doi: 10.1364/AO.53.008140.

We present a silicon wire grid polarizer operating down to a wavelength of 300 nm. Besides metallic grating materials, semiconductors also offer appropriate material properties to realize wire grid polarizers in the ultraviolet (UV) spectral range. The presented polarizer...

Vagus nerve stimulation enhances extinction of conditioned fear and modulates plasticity in the pathway from the ventromedial prefrontal cortex to the amygdala.

Frontiers in behavioral neuroscience

Peña DF, Childs JE, Willett S, Vital A, McIntyre CK, Kroener S.
PMID: 25278857
Front Behav Neurosci. 2014 Sep 18;8:327. doi: 10.3389/fnbeh.2014.00327. eCollection 2014.

Fearful experiences can produce long-lasting and debilitating memories. Extinction of the fear response requires consolidation of new memories that compete with fearful associations. Subjects with posttraumatic stress disorder (PTSD) show impaired extinction of conditioned fear, which is associated with...

Inflammatory Bowel Disease: A Gastrointestinal Presentation of Congenital Plasminogen Deficiency.

ACG case reports journal

Balram B, Thiesen A, Kroeker KI.
PMID: 34095331
ACG Case Rep J. 2021 Jun 02;8(5):e00613. doi: 10.14309/crj.0000000000000613. eCollection 2021 May.

Plasminogen deficiency (PD) is a rare autosomal recessive disease that results in the formation of fibrin-rich pseudomembranes, which impair wound-healing capacity. We report a 21-year-old man with congenital PD-associated inflammatory bowel disease. After an episode of

Improving Molybdenum and Sulfur Vitrification in Borosilicate Nuclear Waste Glasses Using Phosphorus: Structural Insights from NMR.

Inorganic chemistry

Krishnamurthy A, Kroeker S.
PMID: 34927420
Inorg Chem. 2021 Dec 19; doi: 10.1021/acs.inorgchem.1c01913. Epub 2021 Dec 19.

Reclaiming residual fissile materials from spent nuclear fuel rods results in highly radioactive waste that must be immobilized in durable materials to protect the biosphere from harmful environmental exposure. The glasses typically used for this purpose are less effective...

Who wins or loses matters: Strongly interacting consumers drive seagrass resistance under ocean acidification.

The Science of the total environment

Lee J, Hughes BB, Kroeker KJ, Owens A, Wong C, Micheli F.
PMID: 34826463
Sci Total Environ. 2022 Feb 20;808:151594. doi: 10.1016/j.scitotenv.2021.151594. Epub 2021 Nov 24.

Global stressors are increasingly altering ecosystem resistance, resilience, and functioning by reorganizing vital species interactions. However, our predictive understanding of these changes is hindered by failures to consider species-specific functional roles and stress responses within communities. Stressor-driven loss or...

Ecological Leverage Points: Species Interactions Amplify the Physiological Effects of Global Environmental Change in the Ocean.

Annual review of marine science

Kroeker KJ, Sanford E.
PMID: 34416127
Ann Rev Mar Sci. 2022 Jan 03;14:75-103. doi: 10.1146/annurev-marine-042021-051211. Epub 2021 Aug 20.

Marine ecosystems are increasingly impacted by global environmental changes, including warming temperatures, deoxygenation, and ocean acidification. Marine scientists recognize intuitively that these environmental changes are translated into community changes via organismal physiology. However, physiology remains a black box in...

Showing 25 to 36 of 101 entries