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Showing 1 to 12 of 288 entries
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Speech–language pathologists' training and confidence in serving Spanish–English Bilingual children

out of school settings

Hammer CS.
GSID: dw8RW2IUPCoJ
CS Hammer, JS Detwiler, J Detwiler, GW Blood… - Journal of …, 2004 - Elsevier

The purpose of the investigation was to determine the level of training and confidence of speech–language pathologists in serving Spanish–English bilingual children. Surveys were …

Takotsubo cardiomyopathy - An unexpected complication in spine surgery.

International journal of surgery case reports

Hammer N, Kühne C, Meixensberger J, Hänsel B, Winkler D.
PMID: 25544485
Int J Surg Case Rep. 2015;6:172-4. doi: 10.1016/j.ijscr.2014.10.002. Epub 2014 Dec 11.

INTRODUCTION: Takotsubo cardiomyopathy is an apical ballooning syndrome, which can be triggered by stress. Only few case reports describe the onset of Takotsubo as a complication of neurosurgery procedures.CLINICAL PRESENTATION: A case of a 53 year-old female with a...

Covalent attachment and release of small molecules from functional polyphenylene dendrimers.

Chemical communications (Cambridge, England)

Hammer BA, Baumgarten M, Müllen K.
PMID: 24413634
Chem Commun (Camb). 2014 Feb 25;50(16):2034-6. doi: 10.1039/c3cc48741e.

Herein, we report the synthesis of 2nd generation PPDs functionalized with free thiol moieties within the scaffold, which were used as anchor points for the covalent attachment of guest species (p-nitrophenol derivatives) through the oxidative formation of disulfide linkages....

N-Heterotriangulenes: Fascinating Relatives of Triphenylamine.

Chemical record (New York, N.Y.)

Hammer N, Schaub TA, Meinhardt U, Kivala M.
PMID: 26223442
Chem Rec. 2015 Dec;15(6):1119-31. doi: 10.1002/tcr.201500202. Epub 2015 Jul 29.

Carbonyl- and dimethylmethylene-bridged triphenylamines called N-heterotriangulenes are not only aesthetically pleasing π-conjugated scaffolds interesting on their own but also provide numerous possibilities for further synthetic modifications to serve as versatile precursors for the construction of functional organic molecules. In...

Competition between Hydrophilic and Argyrophilic Interactions in Surface Enhanced Raman Spectroscopy.

Chemphyschem : a European journal of chemical physics and physical chemistry

Kelly JT, McClellan AK, Joe LV, Wright AM, Lloyd LT, Tschumper GS, Hammer NI.
PMID: 27350289
Chemphyschem. 2016 Sep 19;17(18):2782-6. doi: 10.1002/cphc.201600678. Epub 2016 Jul 07.

The competition for binding and charge-transfer (CT) from the nitrogen containing heterocycle pyrimidine to either silver or to water in surface enhanced Raman spectroscopy (SERS) is discussed. The correlation between the shifting observed for vibrational normal modes and CT...

Long-range energy transport in single supramolecular nanofibres at room temperature.

Nature

Haedler AT, Kreger K, Issac A, Wittmann B, Kivala M, Hammer N, Köhler J, Schmidt HW, Hildner R.
PMID: 26156373
Nature. 2015 Jul 09;523(7559):196-9. doi: 10.1038/nature14570.

Efficient transport of excitation energy over long distances is a key process in light-harvesting systems, as well as in molecular electronics. However, in synthetic disordered organic materials, the exciton diffusion length is typically only around 10 nanometres (refs 4,...

Fleet Safety: Developing & Sustaining an Effective Program With ANSI/ASSE Z15.1.

Professional safety

Hammer BS, Pratt SG, Ross P.
PMID: 26251557
Prof Saf. 2014 Mar;59(3):47-56.

Millions of U.S. workers are at risk for a work-related motor vehicle crash. Fatality data show that across all industries, motor vehicle crashes are consistently the leading cause of work-related fatalities. Of 43,025 work-related fatalities reported by BLS between...

Synthesis, characterization, photophysical properties, and catalytic activity of an SCS bis(N-heterocyclic thione) (SCS-NHT) Pd pincer complex.

Dalton transactions (Cambridge, England : 2003)

Tyson GE, Tokmic K, Oian CS, Rabinovich D, Valle HU, Hollis TK, Kelly JT, Cuellar KA, McNamara LE, Hammer NI, Webster CE, Oliver AG, Zhang M.
PMID: 26205732
Dalton Trans. 2015 Aug 28;44(32):14475-82. doi: 10.1039/c4dt03324h.

Treatment of 1,3-bis(3'-butylimidazolyl-1'-yl)benzene diiodide with elemental sulfur in the presence of a base produced a bis(N-heterocyclic thione) (NHT) pincer ligand precursor. Its reaction with PdCl2(CH3CN)2 produced chloro[1,3-bis(3'-butylimidazole-2'-thione-κ-S)benzene-κ-C]palladium(ii), a 6,6-fused ring SCS-NHT palladium pincer complex. This air stable compound is,...

Synthesis and properties of arylvinylidene-bridged triphenylamines.

The Journal of organic chemistry

Hammer N, Shubina TE, Gisselbrecht JP, Hampel F, Kivala M.
PMID: 25603313
J Org Chem. 2015 Feb 20;80(4):2418-24. doi: 10.1021/jo502605e. Epub 2015 Feb 03.

A series of arylvinylidene-bridged triphenylamines were efficiently synthesized through the thionation/Barton-Kellogg olefination sequence from their corresponding carbonyl precursors. The electrochemical investigations identified these highly distorted scaffolds as fairly strong electron donors capable of several reversible oxidation steps with the...

Effect of bilayer thickness on membrane bending rigidity.

Langmuir : the ACS journal of surfaces and colloids

Bermúdez H, Hammer DA, Discher DE.
PMID: 15773070
Langmuir. 2004 Feb 03;20(3):540-3. doi: 10.1021/la035497f.

The bending rigidity k(c) of bilayer vesicles self-assembled from amphiphilic diblock copolymers has been measured using single- and dual-micropipet techniques. These copolymers are nearly a factor of 5 greater in hydrophobic membrane thickness d than their lipid counterparts and...

Negative ions of ethylene sulfite.

The Journal of chemical physics

Robertson WD, Hammer NI, Bartmess JE, Compton RN, Diri K, Jordan KD.
PMID: 15945736
J Chem Phys. 2005 May 22;122(20):204319. doi: 10.1063/1.1913578.

The formation of negative ions in molecular beams of ethylene sulfite (ES, alternately called glycol sulfite or ethylene glycol, C(2)H(4)SO(3)) molecules has been studied using both Rydberg electron transfer (RET) and free electron attachment methods. RET experiments with jet-cooled...

Spectral signatures of hydrated proton vibrations in water clusters.

Science (New York, N.Y.)

Headrick JM, Diken EG, Walters RS, Hammer NI, Christie RA, Cui J, Myshakin EM, Duncan MA, Johnson MA, Jordan KD.
PMID: 15961665
Science. 2005 Jun 17;308(5729):1765-9. doi: 10.1126/science.1113094.

The ease with which the pH of water is measured obscures the fact that there is presently no clear molecular description for the hydrated proton. The mid-infrared spectrum of bulk aqueous acid, for example, is too diffuse to establish...

Showing 1 to 12 of 288 entries