Results 191 to 200 of about 1,566 (216)

ACTION OF VISIBLE LIGHT ON ENZYMES IN CELL ENVELOPES OF MICROCOCCUS ROSEUS

Photochemistry and Photobiology, 1975
Abstract— Envelopes were isolated from the carotenogenic bacterium Micrococcus roseus, which is subject to photodynamic killing in the presence of a photosensitizing dye but not in the absence of such a dye. Envelope preparations contained 88 per cent of the total cellular carotenoids, 20% of the NADH oxidase, 100 per cent of the ATPase and 30% of the ...
J M, Ascenzi, J J, Cooney
openaire   +2 more sources

Symmetric orbits of orthogonal veronese actions and their second order envelopes

Results in Mathematics, 1995
A submanifold of Euclidean space that is invariant under reflection at each of its normal spaces is called extrinsic symmetric. These are characterized by the fact that the second fundamental form is parallel: \(\nabla h = 0\). They are necessarily orbits of certain orthogonal Lie group actions [the reviewer, Math. Ann. 247, 81-93 (1980; Zbl 0446.53041)
openaire   +1 more source

Invariants in enveloping algebras under the action of Lie algebras of derivations

Journal of Mathematical Physics, 1979
An upper bound on the number of algebraically independent invariants in an enveloping algebra 𝒰 under the action of a Lie algebra G0 of derivations is obtained. We are able to determine the exact number of invariants for the case [G0,G0]=G0. This generalizes previous results about Casimir invariants.
Abellanas, L., Martinez Alonso, L.
openaire   +1 more source

The Merits of an Envelope Action Spectrum for Ultraviolet Radiation Exposure Criteria

American Industrial Hygiene Association Journal, 1972
Few generally accepted standards for personnel exposure to ultraviolet radiation presently exist. Values which have been used as guide-lines were based either on a single-wavelength effect (253.7 nm) which may be emitted from an essentially monochromatic source, or on data which is somewhat at variance with that obtained in more recent investigations ...
openaire   +2 more sources

Data Envelopment Analysis of Civic Action Programme in North East India

International Journal of Academic Research & Development, 2021
Civic Action Programme (CAP) is a Central Sector Scheme which is meant for welfare of border population including people residing in North East (NE) region. The study uses Data Envelopment Analysis (DEA) in order to measure the efficiency of four Central Armed Police Forces (CAPFs) implementing CAP in NE Region from the financial year 2015-16 to 2019 ...
openaire   +1 more source

Symmetric orbits of orthogonal Pl�cker actions and triviality of their second order envelopes

Annals of Global Analysis and Geometry, 1996
After presenting the known facts about semi-parallel submanifolds, symmetric orbits and the Plücker action, the author proves the following: 1) the only symmetric orbits are Plücker orbits and for \(n=2v>4\) the unitary orbits, 2) each of their second order envelopes is trivial, i.e., is a single orbit or its open part.
openaire   +2 more sources

Passive actions in the building envelope to enhance sustainability of schools in a Mediterranean climate

Energy, 2019
Abstract Currently there is intense research activity to improve energy efficiency in buildings. School buildings are among the most numerous of public buildings in Europe, most of them built several decades ago. This paper analyses the inclusion of good energy efficiency practices within a school buildings renovation and modernization programme as ...
Maite Gil-Baez, Ángela Barrios Padura, Marta Molina Huelva   +2 more
openaire   +1 more source

Antivirals Acting on Viral Envelopes with a Biophysical Mechanism of Action

2017
Most antivirals target viral proteins and are specific for only one virus, or even one viral genotype. Whereas viral proteins are encoded in the plastic viral genome, virion lipids are not and their rearrangements during fusion of the virion envelope to cellular membranes are conserved among otherwise unrelated enveloped viruses.
openaire   +1 more source

Decay of the envelope soliton under the action of δ-kicks and a 'soliton standard map'

Journal of Physics A: Mathematical and General, 1990
Summary: The dynamics of an envelope soliton under the action of \(\delta\)-kicks is investigated in the framework of a nonlinear Schrödinger equation. It is shown that soliton dynamics may be described by a `standard map' for a sufficiently large number of \(\delta\)-kicks. The estimation of the soliton lifetime and radiation level is derived by means
openaire   +1 more source

[Action of various disinfectants on 7 envelope-free viruses].

Annales de recherches veterinaires. Annals of veterinary research, 1987
The activity of 15 disinfectants on seven nude viruses belonging to groups significant in human and veterinary medicine and in the bio-industry was investigated by a dilution technique. These trials, performed organic matters being either present or not revealed that current products such as 0.8% sodium hydroxyde and 1 degree chlorine water were the ...
openaire   +1 more source