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Showing 25 to 36 of 672 entries
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The predatory legs of Philonthus marginatus (Coleoptera, Staphylinidae): functional morphology and tarsal ultrastructure.

Arthropod structure & development

Betz O, Mumm R.
PMID: 18088947
Arthropod Struct Dev. 2001 Nov;30(2):77-97. doi: 10.1016/s1467-8039(01)00029-9.

Representatives of the staphylinid beetle Philonthus marginatus are characterized by highly modified raptorial forelegs which are used to strike prey in a particularly fast manner. Beetles ready to capture prey remain in a characteristic precapture ambush posture characterized by...

Ergonomics and international standards: history, organizational structure and method of development.

Applied ergonomics

Parsons KC, Shackel B, Metz B.
PMID: 15677026
Appl Ergon. 1995 Aug;26(4):249-58. doi: 10.1016/0003-6870(95)00028-b.

Egonomics international standards were formally considered in 1973 by a symposium of the International Ergonomics Association (IEA) held at Loughborough University in the UK. Recommendations led to the establishment of ISO TC 159 'Ergonomics', with Germany (DIN) holding the...

Partonic pole matrix elements for fragmentation.

Physical review letters

Meissner S, Metz A.
PMID: 19518774
Phys Rev Lett. 2009 May 01;102(17):172003. doi: 10.1103/PhysRevLett.102.172003. Epub 2009 May 01.

A model-independent analysis of collinear three-parton correlation functions for fragmentation is performed. By investigating their support properties it is shown, in particular, that the so-called partonic pole matrix elements vanish. This sheds new light on the understanding of transverse...

Sex and size in cosexual plants.

Trends in ecology & evolution

Klinkhamer PG, de Jong TJ, Metz H.
PMID: 21238063
Trends Ecol Evol. 1997 Jul;12(7):260-5. doi: 10.1016/s0169-5347(97)01078-1.

There are conceptual and practical difficulties in measuring the exact shape of fitness-gain curves and sex allocation, and these hamper empirical testing of some of the basic predictions of sex allocation theory for plants. Nevertheless, our knowledge of the...

Centrifugo-pneumatic valve for metering of highly wetting liquids on centrifugal microfluidic platforms.

Lab on a chip

Mark D, Metz T, Haeberle S, Lutz S, Ducrée J, Zengerle R, von Stetten F.
PMID: 20024042
Lab Chip. 2009 Dec 21;9(24):3599-603. doi: 10.1039/b914415c. Epub 2009 Oct 12.

We designed and experimentally validated a new type of passive valve for centrifugal microfluidic platforms. A liquid column entering an unvented receiving chamber is stopped by the counter-pressure of compressed air. This valve opens under defined conditions at high...

High island densities in pulsed laser deposition: causes and implications.

Physical review letters

Schmid M, Lenauer C, Buchsbaum A, Wimmer F, Rauchbauer G, Scheiber P, Betz G, Varga P.
PMID: 19792662
Phys Rev Lett. 2009 Aug 14;103(7):076101. doi: 10.1103/PhysRevLett.103.076101. Epub 2009 Aug 10.

By studying metal growth on Pt(111), we determine the reasons for the high island densities observed in pulsed laser deposition (PLD) compared to conventional thermal deposition. For homoepitaxy by PLD with moderate energies ( < or approximately 100 eV)...

Imaging the spin Hall effect of light inside semiconductors via absorption.

Optics letters

Ménard JM, Mattacchione AE, Betz M, van Driel HM.
PMID: 19649081
Opt Lett. 2009 Aug 01;34(15):2312-4. doi: 10.1364/ol.34.002312.

The opposite transverse shifts for the right and left circular polarization components of a 100 fs 820 nm linearly polarized pulse focused onto GaAs are observed in situ via absorption. A time-delayed normally incident probe pulse scanned across the...

Pancreatic ampullary carcinoma with neck metastases: a case report.

Cases journal

Aksoy M, Sumer A, Sari S, Mete O, Salmaslioglu A, Erbil Y.
PMID: 19946517
Cases J. 2009 Oct 01;2:146. doi: 10.1186/1757-1626-2-146.

BACKGROUND: An 18-year-old Turkish woman was referred with a 6-week history of rapidly enlarging cervical mass at the left side.CASE REPORT: She was diagnosed of ampullary carcinoma for which pancreatoduodenectomy was performed 14 months ago. In our patient with...

Characterization of pyrgeometers and the accuracy of atmospheric long-wave radiation measurements.

Applied optics

Philipona R, Fröhlich C, Betz C.
PMID: 21037701
Appl Opt. 1995 Mar 20;34(9):1598-605. doi: 10.1364/AO.34.001598.

A detailed characterization is performed to calibrate pyrgeometers, using a newly developed apparatus that contains a blackbody radiation source and the means to vary the temperatures of the pyrgeometer under testing. Calibration measurements cover the parameter space of radiation...

Primary structure of a developmentally regulated nicotinic acetylcholine receptor protein from Drosophila.

The EMBO journal

Hermans-Borgmeyer I, Zopf D, Ryseck RP, Hovemann B, Betz H, Gundelfinger ED.
PMID: 16453690
EMBO J. 1986 Jul;5(7):1503-8.

Acetylcholine is a major excitatory neurotransmitter in the central nervous system of insects. Using DNA probes of the Torpedo nicotinic acetylcholine receptor (AChR) we have isolated two overlapping cDNA clones encoding a putative neuronal AChR protein from the fruitfly,...

Two-Dimensional Visualization of Fluorescence Lifetimes by use of a Picosecond Laser and a Streak Camera.

Applied optics

Ossler F, Metz T, Martinsson L, Aldén M.
PMID: 18273157
Appl Opt. 1998 Apr 20;37(12):2303-14. doi: 10.1364/ao.37.002303.

Two-dimensional distributions of the effective lifetime of the fluorescence emission induced by short-pulsed laser radiation are obtained from two-dimensional images recorded with a streak camera and a charge-coupled device by means of a separation algorithm method (SAM). In theory,...

Lapatinib in combination with capecitabine in the management of ErbB2-positive (HER2-positive) advanced breast cancer.

Biologics : targets & therapy

Kaufman B, Stein S, Casey MA, Newstat BO.
PMID: 19707428
Biologics. 2008 Mar;2(1):61-5. doi: 10.2147/btt.s1713.

Lapatinib is an oral, reversible, dual inhibitor of epidermal growth factor receptor ErbB1 (EGFR) and human epidermal growth factor receptor type 2 ErbB2 (HER2). Results of a phase III study comparing lapatinib plus capecitabine with capecitabine alone in women...

Showing 25 to 36 of 672 entries