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Showing 25 to 36 of 410 entries
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Extinction and the optical theorem. Part II. Multiple particles.

Journal of the Optical Society of America. A, Optics, image science, and vision

Berg MJ, Sorensen CM, Chakrabarti A.
PMID: 18594606
J Opt Soc Am A Opt Image Sci Vis. 2008 Jul;25(7):1514-20. doi: 10.1364/josaa.25.001514.

The extinction due to a group of identical particles in a fixed orientation is studied. An analytical description based on the Maxwell volume integral equation is presented, describing the interference energy flow due to a group of noninteracting identical...

Morphology and ontogeny of single-walled multiporous sensilla of hemimetabolous insects.

Tissue & cell

Schmidt K, Berg J.
PMID: 18621269
Tissue Cell. 1994 Apr;26(2):239-47. doi: 10.1016/0040-8166(94)90099-x.

Comparative morphological investigations were made to determine the common organization plan of single-walled multiporous sensilla. The development of multiporous chemoreceptive sensilla of Gryllus, Oncopeltus and Lepisma follows the same path. Each chemoreceptive sensillum is associated with four types of...

Patterns in Mie scattering: evolution when normalized by the Rayleigh cross section.

Applied optics

Berg MJ, Sorensen CM, Chakrabarti A.
PMID: 16353823
Appl Opt. 2005 Dec 01;44(34):7487-93. doi: 10.1364/ao.44.007487.

An alternative to using the traditional scattering angle theta to describe light scattering from a uniform dielectric sphere is the dimensionless parameter qR, where R is the radius of the sphere, q = 2k sin(theta/2), and k is the...

Separate metabolic pathways for Leu-enkephalin and Met-enkephalin-Arg(6)-Phe(7) degradation by rat striatal synaptosomal membranes.

Neurochemistry international

Benuck M, Berg MJ, Marks N.
PMID: 20487892
Neurochem Int. 1982;4(5):389-96. doi: 10.1016/0197-0186(82)90081-x.

Metabolism of Leu-enkephalin and Met-enkephalin-Arg(6)-Phe(7) was studied using synaptosomal plasma membranes prepared from rat corpus striatum and whole brain. Cleavage of the pentapeptide was mediated largely by an aminopeptidase leading to the release of Tyr and Gly-Gly-Phe-Leu. Bestatin, an...

Evidence for conversion of N-Tyr-MIF-1 into MIF-1 by a specific brain aminopeptidase.

Neurochemistry international

Marks N, Berg MJ, Kastin AJ, Coy DH.
PMID: 20488055
Neurochem Int. 1984;6(3):347-53. doi: 10.1016/0197-0186(84)90077-9.

N-Tyr-MIF-1 (Tyr-Pro-Leu-Gly.NH(2)), an immunoreactive neuropeptide exhibiting saturable high affinity binding in rat brain was found to be converted into MIF-1 (Pro-Leu-Gly.NH(2)) by a specific brain aminopeptidase present in rat brain homogenates or cytosol, but with low activity associated with...

Electrical properties of Si-SiO(2)-Si nanogaps.

Nanotechnology

Berg J, Che F, Lundgren P, Enoksson P, Bengtsson S.
PMID: 20817995
Nanotechnology. 2005 Oct;16(10):2197-202. doi: 10.1088/0957-4484/16/10/037. Epub 2005 Aug 16.

The chances of attaching organic molecules to silicon surfaces can be considerably enhanced if a robust nanogap structure with silicon electrodes can be used to connect the molecules. We describe the electrical properties of such an electrode structure, with...

Classification of different bovine muscles according to sensory characteristics and Warner Bratzler shear force.

Meat science

Hildrum KI, Rødbotten R, Høy M, Berg J, Narum B, Wold JP.
PMID: 20416729
Meat Sci. 2009 Oct;83(2):302-7. doi: 10.1016/j.meatsci.2009.05.016. Epub 2009 May 28.

The aim was to examine how well different beef muscles from Norwegian Red bulls respond to the consumer needs. Ten carcasses were slaughtered at a commercial abbatoir, chilled at 4°C for 48h, and 10 muscles excised. After ageing for...

Prodynorphin processing by rat CNS fractions and purified enzymes: Formation of Dynorphin A 1-8 by sulfhydryl-activated carboxypeptidase and peptidyl dipeptidase.

Neurochemistry international

Marks N, Berg MJ, Benuck M, Lo ES, Novachenko H, Seyfried CA.
PMID: 20501113
Neurochem Int. 1987;10(4):413-22. doi: 10.1016/0197-0186(87)90067-2.

The conversion of selected prodynorphin fragments to form the octapeptide Dynorphin A 1-8 was studied in rat brain or spinal cord fractions, and the results compared to the action of purified carboxypeptidases and angiotension converting enzyme. The particulates were...

Comparison of approaches for predicting solute transport: sandbox experiments.

Ground water

Illman WA, Berg SJ, Yeh TC.
PMID: 21883194
Ground Water. 2012 May-Jun;50(3):421-31. doi: 10.1111/j.1745-6584.2011.00859.x. Epub 2011 Aug 29.

The main purpose of this paper was to compare three approaches for predicting solute transport. The approaches include: (1) an effective parameter/macrodispersion approach (Gelhar and Axness 1983); (2) a heterogeneous approach using ordinary kriging based on core samples; and...

Analysis of Multiple Manding Topographies during Functional Communication Training.

Education & treatment of children

Harding JW, Wacker DP, Berg WK, Winborn-Kemmerer L, Lee JF, Ibrahimovic M.
PMID: 20354591
Educ Treat Children. 2009 Feb 01;32(1):21-36. doi: 10.1353/etc.0.0045.

We evaluated the effects of reinforcing multiple manding topographies during functional communication training (FCT) to decrease problem behavior for three preschool-age children. During Phase 1, a functional analysis identified conditions that maintained problem behavior for each child. During Phase...

MUSCULAR ACTIVITY AND BUBBLE FORMATION IN ANIMALS DECOMPRESSED TO SIMULATED ALTITUDES.

The Journal of general physiology

Whitaker DM, Blinks LR, Berg WE, Twitty VC, Harris M.
PMID: 19873415
J Gen Physiol. 1945 Jan 20;28(3):213-23. doi: 10.1085/jgp.28.3.213.

1. Muscular activity during decompression causes bubble formation in the blood of intact bullfrogs. The amount of gas liberated depends on the degrees of muscular activity and supersaturation (as influenced by altitude). In decompressed dissected bullfrogs, bubbles appear in...

Acculturation, health, stress, and psychological distress among elderly Hispanics.

Journal of cross-cultural gerontology

Tran TV, Fitzpatrick T, Berg WR, Wright R.
PMID: 24389980
J Cross Cult Gerontol. 1996 Jun;11(2):149-65. doi: 10.1007/BF00114858.

A structural equations model is proposed to identify direct, indirect, and total effects of selected predictors of psychological distress in a national-area probability sample of Mexican American, Puerto Rican and Cuban elderly. Multivariate regression procedures vis-\,a-vis LISREL-7 techniques are...

Showing 25 to 36 of 410 entries