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41.
42.
Anjos JC Appel JA Bean A Bracker SB Browder TE Cremaldi LM Duboscq JE Elliott JR Escobar CO Gibney MC Hartner GF Huber J Karchin PE Kumar BR Losty MJ Luste GJ Mantsch PM Martin JF McHugh S Menary SR Morrison RJ Nash T Pinfold J Punkar G Purohit MV Ross WR Santoro AF Schmidt DM Shoup AL Sliwa K Sokoloff MD Souza MH Sperka DJ Streetman ME Stundia AB Witherell MS 《Physical review D: Particles and fields》1992,45(7):R2177-R2180
43.
Anjos JC Appel JA Bean A Bracker SB Browder TE Cremaldi LM Elliott JR Escobar CO Estabrooks P Gibney MC Hartner GF Karchin PE Kumar BR Losty MJ Luste GJ Mantsch PM Martin JF McHugh S Menary SR Morrison RJ Nash T Ong P Pinfold J Punkar G Purohit MV Raab JR Santoro AF Sidhu JS Sliwa K Sokoloff MD Souza MH Spalding WJ Streetman ME Stundia AB Witherell MS 《Physical review letters》1989,62(5):513-516
44.
Bhadra S Appel JA Bartlett DF Denby BH Biel J Bintinger D Bharadwaj VK Blodgett DE Bracker SB Bronstein J Daum C Duncan AL Eisner AM Elliott JR Estabrooks P Hartner GF Kalbfleisch GR Kennett RG Kumar BR Losty MJ Lu A Luste GJ Mantsch PM Martin JF Morrison RJ Nash T Nauenberg U Pinfold J Robertson M Schmidke W Shahbazian KK Sheperd RA Sliwa K Sokoloff MD Spalding WJ Stacey J Stanfield KC Streetman M Summers DJ Willis SE Witherell MS Yellin SJ Zorn CJ 《Physical review letters》1985,55(25):2749-2751
45.
We argue that the magnetic helicity conservation is violated at the lepton stage in the evolution of early Universe owing
to the parity violation in the Standard Model of electroweak interactions. As a result, a cosmological magnetic field which
can be a seed for the galactic dynamo obtains from the beginning a substantial magnetic helicity which has to be taken into
account in the magnetic helicity balance at the later stage of galactic dynamo. The particle physics mechanism suggested in
our works depends neither on helicity of matter turbulence with plasma vortices resulting in the standard α effect in dynamo theory nor on general rotation. The mechanism can result in a self-exitation of an (almost) uniform cosmological
magnetic field.
The text was submitted by the authors in English. 相似文献
46.
Aitala EM Amato S Anjos JC Appel JA Ashery D Banerjee S Bediaga I Blaylock G Bracker SB Burchat PR Burnstein RA Carter T Carvalho HS Copty NK Costa I Cremaldi LM Darling C Denisenko K Fernandez A Gagnon P Gerzon S Gobel C Gounder K Halling AM Herrera G Hurvits G James C Kasper PA Kwan S Langs DC Leslie J Lundberg B MayTal-Beck S Meadows B de Mello Neto JR Milburn RH de Miranda JM Napier A Nguyen A d'Oliveira AB O'Shaughnessy K Peng KC Perera LP Purohit MV Quinn B Radeztsky S Rafatian A 《Physical review letters》1996,77(12):2384-2387
47.
A sudden drop in mechanical friction between an adsorbed nitrogen monolayer and a lead substrate occurs when the lead passes through the superconducting transition temperature. We attribute this effect to a sudden drop at the superconducting transition temperature of the substrate Ohmic heating. The Ohmic heating is due to the electronic screening current that results from the sliding adsorbed film. 相似文献
48.
Kenneth E. Byrd Abraham J. Domb Alan J. Sokoloff Elizabeth L. Hamilton-Byrd 《先进技术聚合物》1992,3(6):337-344
The objective of this study was to alter biomechanical forces generated by the muscles of mastication that affect the growth of the craniofacial skeleton through the implantation of neurotransmitter microspheres to stimulate trigeminal motoneurons (TMNe) in vivo. Polyanhydride microspheres containing L-glutamate were stereotaxically implanted 170–920 μm rostral to the left-side trigeminal motor nucleus (TMNu) in 17 Sprague–Dawley rats at 33–38 days old. Seven rats received blank-microsphere implants and two rats had empty delivery system penetration as controls. All rats were killed 10–14 days postsurgical for dissection, brain histology, osteometric data, and SEM analyses. Dimensions of the facial skeletons of glutamate-microsphere rats showed significant (P<0.01, P<0.05) differences when compared to control animals. Glutamate-microsphere animals also demonstrated significant (P<0.01) differences between the dimensions of their implant-and nonimplant-side facial skeletons. SEM analyses indicated that glutamate-microsphere rats had greater implant-side wear of their mandibular incisors compared to blank-microsphere or delivery system controls. The skeletal alterations in the glutamate-microsphere rats are hypothesized to be due to increased implant-side TMNe and masticatory muscle activity patterns. 相似文献
49.
50.
Possible ways of formalizing the concept of statistically homogeneous and isotropic curvature fluctuations in general relativity are considered. The straightforward way of constructing this concept, which is borrowed from statistical hydromechanics, is shown to lead to a physically degenerate result: the correlations between the fluctuations do not decrease with increasing distance between the points. It is emphasized that this result is a peculiar analogue of the Schur theorem. 相似文献