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Showing 1 to 12 of 188 entries
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Mechanistic insights into the Pd-catalyzed direct amination of allyl alcohols: evidence for an outer-sphere mechanism involving a palladium hydride intermediate.

Chemistry (Weinheim an der Bergstrasse, Germany)

Sawadjoon S, Sjöberg PJ, Orthaber A, Matsson O, Samec JS.
PMID: 24403056
Chemistry. 2014 Feb 03;20(6):1520-4. doi: 10.1002/chem.201303431. Epub 2014 Jan 08.

The mechanism of direct amination of allyl alcohol by a palladium triphenylphosphite complex has been explored. Labelling studies show that the reaction proceeds through a π-allylpalladium intermediate. A second-order dependence of reaction rate on allyl alcohol concentration was observed....

Nesting mallards (Anas platyrhynchos) forecast brood-stage food limitation when selecting habitat: experimental evidence.

Oecologia

Pöysä H, Elmberg J, Sjöberg K, Nummi P.
PMID: 28308352
Oecologia. 2000 Mar;122(4):582-586. doi: 10.1007/PL00008858.

By combining and reanalysing data from two independent field experiments we explore whether food limitation at the brood stage affects habitat selection in nesting mallards (Anas platyrhynchos). In an introduction experiment we found that, independent of treatment, some study...

Erratum to: Large intragenic deletion of CDC73 (exons 4-10) in a three-generation hyperparathyroidism-jaw tumor (HPT-JT) syndrome family.

BMC medical genetics

Guarnieri V, Seaberg RM, Kelly C, Jean Davidson M, Raphael S, Shuen AY, Baorda F, Palumbo O, Scillitani A, Hendy GN, Cole DEC.
PMID: 28903740
BMC Med Genet. 2017 Sep 13;18(1):99. doi: 10.1186/s12881-017-0459-7.

No abstract available.

A General Route to β-Substituted Pyrroles by Transition-Metal Catalysis.

The Journal of organic chemistry

Bunrit A, Sawadjoon S, Tšupova S, Sjöberg PJ, Samec JS.
PMID: 26789020
J Org Chem. 2016 Feb 19;81(4):1450-60. doi: 10.1021/acs.joc.5b02581. Epub 2016 Feb 04.

An atom-efficient route to pyrroles substituted in the β-position has been achieved in four high yielding steps by a combination of Pd, Ru, and Fe catalysis with only water and ethene as side-products. The reaction is general and gives...

Palladium-catalyzed Heck reactions of styrene derivatives and 2-iodo-p-carborane.

The Journal of organic chemistry

Eriksson L, Winberg KJ, Claro RT, Sjöberg S.
PMID: 12713362
J Org Chem. 2003 May 02;68(9):3569-73. doi: 10.1021/jo026248j.

p-Carborane has been vinylated on the 2-B-atom in high yields using the Heck reaction. Thus, the reaction between 2-iodo-p-carborane and various styrenes [4-H-, 4-C(6)H(4)-, 4-Cl-, 4-Br-, 4-NO(2)-, 4-CH(3)O-, and 4-CH(3)-] resulted in the production of the corresponding trans-beta-(2-B-p-carboranyl)styrene in...

Information technology risks as seen by the public.

Risk analysis : an official publication of the Society for Risk Analysis

Sjöberg L, Fromm J.
PMID: 11572424
Risk Anal. 2001 Jun;21(3):427-41. doi: 10.1111/0272-4332.213123.

Risks related to information technology (IT) are becoming a focus of concern in current risk debates. The use of IT is rapidly spreading in the population, as is access to computers in general. The present article reviews the literature...

A setup for the coupling of a thin-layer electrochemical flow cell to electrospray mass spectrometry.

Analytical chemistry

Bökman CF, Zettersten C, Sjöberg PJ, Nyholm L.
PMID: 15053666
Anal Chem. 2004 Apr 01;76(7):2017-24. doi: 10.1021/ac030388r.

A novel setup for the coupling of a commercially available thin-layer cell to electrospray mass spectrometry (ESI-MS) which allows the electrochemical reactions at the counter electrode to be straightforwardly separated from the flow into the mass spectrometer has been...

MR imaging following herniography in patients with unclear groin pain.

European radiology

Leander P, Ekberg O, Sjöberg S, Kesek P.
PMID: 11097389
Eur Radiol. 2000;10(11):1691-6. doi: 10.1007/s003300000555.

The aims of the present study were to assess if MRI gives the same diagnostic information as herniography concerning the presence of hernias and reveals other causes of groin pain. The prospective study enrolled 20 patients referred for herniography,...

Roles of cholesterol and lipids in the etiopathogenesis of Alzheimer's disease.

Journal of biomedicine & biotechnology

Rojo L, Sjöberg MK, Hernández P, Zambrano C, Maccioni RB.
PMID: 17047312
J Biomed Biotechnol. 2006;2006(3):73976. doi: 10.1155/JBB/2006/73976.

Alzheimer's disease is the principal cause of dementia throughout the world and the fourth cause of death in developed economies.This brain disorder is characterized by the formation of brain protein aggregates, namely, the paired helical filaments and senile plaques....

Calculating the reflectance map.

Applied optics

Horn BK, Sjoberg RW.
PMID: 20212547
Appl Opt. 1979 Jun 01;18(11):1770-9. doi: 10.1364/AO.18.001770.

It appears that the development of machine vision may benefit from a detailed understanding of the imaging process. The reflectance map, showing scene radiance as a function of surface gradient, has proved to be helpful in this endeavor. The...

Compatibility of parenteral nutrition solutions when mixed in a plastic bag.

Clinical nutrition (Edinburgh, Scotland)

Jeppsson RI, Sjöberg B.
PMID: 16829426
Clin Nutr. 1984 Mar;2(3):149-58. doi: 10.1016/0261-5614(84)90018-9.

The administration of a single admixture of the components used in total parenteral nutrition has been considered more convenient and to give rise to less infection than the conventional regimen with separate infusions. The physico- chemical properties of several...

Insulin-like growth factor I (IGF-I) and regeneration of the sciatic nerve of the rat.

Restorative neurology and neuroscience

Kanje M, Skottner A, Sjöberg J.
PMID: 21551558
Restor Neurol Neurosci. 1990 Jan 01;1(3):211-5. doi: 10.3233/RNN-1990-13406.

We have found that insulin-like growth factor I (IGF-I) stimulates regeneration of the rat sciatic nerve. This paper reviews and adds some new data to our investigations on the effects of local administration of IGF-I to the sciatic nerve...

Showing 1 to 12 of 188 entries