142 research outputs found
Heavy electrons: Electron droplets generated by photogalvanic and pyroelectric effects
Electron clusters, X-rays and nanosecond radio-frequency pulses are produced
by 100 mW continuous-wave laser illuminating ferroelectric crystal of LiNbO_3.
A long-living stable electron droplet with the size of about 100 mcm has freely
moved with the velocity 0.5 cm/s in the air near the surface of the crystal
experiencing the Earth gravitational field. The microscopic model of cluster
stability, which is based on submicroscopic mechanics developed in the real
physical space, is suggested. The role of a restraining force plays the inerton
field, a substructure of the particles' matter waves, which a solitary one can
elastically withstand the Coulomb repulsion of electrons. It is shown that
electrons in the droplet are heavy electrons whose mass at least 1 million of
times exceeds the rest mass of free electron. Application for X-ray imaging and
lithography is discussed.Comment: 15 p., 3 fig
On the behavior of physical parameters of aqueous solutions affected by the inerton field of Teslar technology
We present studies of the behavior of the permittivity of such liquid systems
as pure distilled water, alcohol and 50%-aqueous solutions of alcohol as
affected by the inerton field generated by a special signal generator contained
within a wrist-watch or bracelet made by so-called Teslar technology. It has
been found that the changes in fact are significant. The method employed has
allowed us to fix the value of frequency of the field generated by the Teslar
chip. The frequency has been determined to be approximately 8 Hz. The
phenomenological consideration and submicroscopic foundations of a significant
increase of the permittivity are studied taking into account an additional
interaction, namely the mass interaction between polar water molecules, which
is caused by the inerton field of the Teslar chip. This is one more proof of
Krasnoholovets' concept regarding the existence of a substructure of the matter
waves of moving/vibrating entities, i.e. the inerton field, which has been
predicted in a series of his previous works.Comment: 15 p., 9 fig
Fixed points for non-surjective expansion mappings
The contractive conditions of Popa (Demonstr. Math. 1990, 23, 213-218) were
further improved for four non-surjective expansion mappings, and some common
fixed point theorems under semi-compatible pairs of mappings are proved. Our
main findings bring improvements to a number of results in the non-metric
setting. Some implications for mathematical physics are raised with respect to
physical invariant
Non-irradiation-derived reactive oxygen species (ROS) and cancer: therapeutic implications
Owing to their chemical reactivity, radicals have cytocidal properties. Destruction of cells by irradiation-induced radical formation is one of the most frequent interventions in cancer therapy. An alternative to irradiation-induced radical formation is in principle drug-induced formation of radicals, and the formation of toxic metabolites by enzyme catalysed reactions. Although these developments are currently still in their infancy, they nevertheless deserve consideration. There are now numerous examples known of conventional anti-cancer drugs that may at least in part exert cytotoxicity by induction of radical formation. Some drugs, such as arsenic trioxide and 2-methoxy-estradiol, were shown to induce programmed cell death due to radical formation. Enzyme-catalysed radical formation has the advantage that cytotoxic products are produced continuously over an extended period of time in the vicinity of tumour cells. Up to now the enzymatic formation of toxic metabolites has nearly exclusively been investigated using bovine serum amine oxidase (BSAO), and spermine as substrate. The metabolites of this reaction, hydrogen peroxide and aldehydes are cytotoxic. The combination of BSAO and spermine is not only able to prevent tumour cell growth, but prevents also tumour growth, particularly well if the enzyme has been conjugated with a biocompatible gel. Since the tumour cells release substrates of BSAO, the administration of spermine is not required. Combination with cytotoxic drugs, and elevation of temperature improves the cytocidal effect of spermine metabolites. The fact that multidrug resistant cells are more sensitive to spermine metabolites than their wild type counterparts makes this new approach especially attractive, since the development of multidrug resistance is one of the major problems of conventional cancer therapy
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