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Showing 1 to 12 of 314 entries
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[30 YEARS IN MEDICINE].

Therapie der Gegenwart

Geiger H.
PMID: 793081
Ther Ggw. 1976 Oct;115(10):1805-25.

No abstract available.

Acute human brain responses to intracortical microelectrode arrays: challenges and future prospects.

Frontiers in neuroengineering

Fernández E, Greger B, House PA, Aranda I, Botella C, Albisua J, Soto-Sánchez C, Alfaro A, Normann RA.
PMID: 25100989
Front Neuroeng. 2014 Jul 21;7:24. doi: 10.3389/fneng.2014.00024. eCollection 2014.

The emerging field of neuroprosthetics is focused on the development of new therapeutic interventions that will be able to restore some lost neural function by selective electrical stimulation or by harnessing activity recorded from populations of neurons. As more...

A Vacuum Ultraviolet Absorption Array Spectrometer as a Selective Detector for Comprehensive Two-Dimensional Gas Chromatography: Concept and First Results.

Analytical chemistry

Gröger T, Gruber B, Harrison D, Saraji-Bozorgzad M, Mthembu M, Sutherland A, Zimmermann R.
PMID: 26810390
Anal Chem. 2016 Mar 15;88(6):3031-9. doi: 10.1021/acs.analchem.5b02472. Epub 2016 Feb 26.

Fast and selective detectors are very interesting for comprehensive two-dimensional gas chromatography (GC × GC). This is particularly true if the detector system can provide additional spectroscopic information on the compound structure and/or functionality. Other than mass spectrometry (MS),...

Retrospective life course data from European countries on how early life experiences determine health in old age and possible mid-life mediators.

Data in brief

Pakpahan E, Hoffmann R, Kröger H.
PMID: 27995163
Data Brief. 2016 Dec 07;10:277-282. doi: 10.1016/j.dib.2016.11.094. eCollection 2017 Feb.

The data presented in this article is related to the research paper entitled "The long arm of childhood circumstances on health in old age: Evidence from SHARELIFE" (E. Pakpahan, R. Hoffmann, H. Kröger, 2016) [1]. It presents the distribution...

Diagnosis of Knee Osteochondral Lesions With Ultrasound Imaging.

Arthroscopy techniques

Penttilä P, Liukkonen J, Joukainen A, Virén T, Jurvelin JS, Töyräs J, Kröger H.
PMID: 26697300
Arthrosc Tech. 2015 Sep 14;4(5):e429-33. doi: 10.1016/j.eats.2015.04.002. eCollection 2015 Oct.

Evaluation of articular cartilage and subchondral bone is essential in the diagnosis of joint diseases and injuries. Interobserver and intraobserver reproducibilities of arthroscopic grading are only poor to moderate. Thus, for quantitative and objective evaluation of cartilage and subchondral...

Closed path integrals and the quantum action.

Physical review letters

Jirari H, Kröger H, Luo XQ, Moriarty KJ, Rubin SG.
PMID: 11177788
Phys Rev Lett. 2001 Jan 08;86(2):187-91. doi: 10.1103/PhysRevLett.86.187.

We suggest a closed form expression for the path integral of quantum transition amplitudes. We introduce a quantum action with parameters different from the classical action. We present numerical results for the harmonic oscillator with weak perturbation, the quartic...

Thymidine kinase and adenosine kinase activities in homogenates of thyroid lobes in hemithyroidectomized rats; effects of melatonin in vitro.

Neuro endocrinology letters

Gesing A, Modrzejewska H, Karbownik M, Sewerynek E, Greger J, Lewinski A.
PMID: 11335866
Neuro Endocrinol Lett. 2000;21(6):453-459.

OBJECTIVES: Thymidine kinase (TK, EC 2.7.1.21) is a part of the pyrimidine salvage pathway, involved in DNA synthesis. In turn, adenosine kinase (AK, EC 2.7.1.20) functions as a part of the purine metabolic pathway, involved in DNA synthesis. Melatonin...

The development of new monometallic bifunctional catalysts with Lewis acid and Lewis base properties, and their application in asymmetric cyanation reactions.

Chemistry (Weinheim an der Bergstrasse, Germany)

Gröger H.
PMID: 11822424
Chemistry. 2001 Dec 17;7(24):5246-51. doi: 10.1002/1521-3765(20011217)7:24<5246::aid-chem5246>3.0.co;2-o.

Bifunctional catalysts can drastically improve the efficiency of asymmetric processes with respect to enantioselectivity and/or conversion rate. A new type of chiral bifunctional catalyst has been developed recently in the Shibasaki group that contains both Lewis acid and Lewis...

Recording advances for neural prosthetics.

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference

Andersen RA, Burdick JW, Musallam S, Scherberger H, Pesaran B, Meeker D, Corneil BD, Fineman I, Nenadic Z, Branchaud E, Cham JG, Greger B, Tai YC, Mojarradi MM.
PMID: 17271551
Conf Proc IEEE Eng Med Biol Soc. 2004;2004:5352-5. doi: 10.1109/IEMBS.2004.1404494.

An important challenge for neural prosthetics research is to record from populations of neurons over long periods of time, ideally for the lifetime of the patient. Two new advances toward this goal are described, the use of local field...

[Not Available].

Duodecim; laaketieteellinen aikakauskirja

Välimäki M, Alhava E, Aro H, Irjala K, Heinonen A, Hirvonen E, Jousilahti P, Komulainen J, Kröger H, Lamberg-Allardt C, Malmivaara A, Mattila K, Mervaala E, Möttönen T, Salmela P, Salmi J, Salovaara K, Savolainen A, Suominen H, Tuppurainen M, Viikari J.
PMID: 17763654
Duodecim. 2007;123(11):1345-6.

No abstract available.

Indole Alkaloid Formation and Storage in Cell Suspension Cultures of Catharanthus roseus.

Planta medica

Neumann D, Krauss G, Hieke M, Gröger D.
PMID: 17404935
Planta Med. 1983 May;48(1):20-3. doi: 10.1055/s-2007-969871.

The localization and storage of alkaloids were investigated in a low producing cell suspension culture of CATHARANTHUS ROSEUS(L.) G. Don. (Apocynaceae). Fluorescence microscopy and electron microscopy indicate alkaloid accumulation to occur inside the vacuoles of particular cells. These alkaloid...

N-Methylation of Anthranilic Acid to N-Methylanthranilic Acid by Cell-free Extracts of Ruta graveolens Tissue Cultures.

Planta medica

Baumert A, Hieke M, Gröger D.
PMID: 17404992
Planta Med. 1983 Aug;48(8):258-62. doi: 10.1055/s-2007-969929.

Cell-free extracts from acridone synthesizing cell suspension cultures of RUTA GRAVEOLENS L. catalyze the N-methylation of anthranilic acid using S-adenosyl-L-methionine as methyl donor. The stability of enzyme preparations was remarkably high during storage at -20 degrees C. Optimum activity...

Showing 1 to 12 of 314 entries