This is a pedagogical and (almost) self-contained introduction into the Theorem of Groenewold and van Howe, which states that a naive transcription of Dirac’s quantisation rules cannot work. Some related issues in quantisation theory are also discussed. First-class constrained systems a briefly described in a slightly more ‘global’ fashion.1

the dependence of the lateral distribution of cherenkov light in simulated extensive air showers to the energy and the mass of the primary cosmic rays has been studied. it has been shown that a previous claim about mass independent proportionality of shower energy to the total cherenkov photon number is not valid in energies below eeas ~ 1014 ev. we have found that the core distance of the so c...

Note that some documents are published in more than one place. Due to the large number of documents, publications listed in prior-year publication lists are not repeated. General Dynamical Sharp-interface Conditions for Phase Transformations in Viscous Heat-Conducting Fluids, Journal of Fluid Mechanics, to be published The purpose of this paper is to develop, from basic considerations, a comple...

The Mass Spectrometer and Incoherent Scatter radar (MSIS) model family has been developed improved since the early 1970's. most recent version of MSIS is Naval Research Laboratory (NRL) 2.0 empirical atmospheric model. NRLMSIS provides species density, mass temperature estimates as function location space weather conditions. models have long a popular choice thermosphere in research operations ...

one of the sacred water tank brahmsarovar, at kurukshetra in india was studied to assess the impact of mass bathing during new moon day (called as amavasya in india) in terms of physico-chemical and biological characteristics. overall water quality index was calculated using online calculator. results have revealed significant (p

Increased recognition of the disproportionately large contribution of newborn health to global child survival has fuelled efforts to address neonatal mortality in resource-limited settings. Stillbirths have not been as well studied despite the fact that more than 3 million stillbirths occur annually, a disease burden that approaches that of postnatal deaths. The poorest countries have the highe...

in the present work, the effects of operating conditions including ph, transmembrane pressure, oil concentration, and temperature on fouling resistance and the rejection of turbidity for a polymeric membrane in an ultrafiltration system of wastewater treatment were studied. a new modeling technique called evolutionary polynomial regression (epr) was investigated. epr is a method based on regres...

The new Allen Center for Business Activities is nearing completion between the Cohen House Faculty Club and the old wing of Baker College. The million dollar building was a gift f rom Mr. and Mrs. Herbert Allen. The center, to be finished in June, will house treasurer, cashier, accounting, campus business, and development offices. In addition, the building will be a temporary home for offices a...

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Background: It is believed that the loading value of anticancer drug conjugated to the monoclonal antibody, called drug-to-antibody ratio (DAR), is the main quality feature of antibody-drug conjugates. Methods: In this study, matrix assisted laser desorption/ionization mass spectrometry was used to determine the average molecular weight of trastuzumab and its three conjugated forms. The differe...