The conditions for the formation of a substance with negative mass are investigated. critical velocity body ω = 235696.8871 km/s, necessary its transition to massless state, was determined by two independent methods. Zeroing matter also occurs at temperature T =2.17 . 1036 mo (mo is rest particle in grams). At higher temperatures or speeds movement, bodies becomes negative. resulting formulas m...

background: celiac disease (cd), as an autoimmune disease has initiated since ingestion of food containing gluten. constant intolerance to gluten causes damages of the small intestinal mucosa. one reason of mal-absorption in children and infants is cd. additionally, about 75% of newly identified patients with cd have low bone mineral density (bmd). many factors have role in metabolic bone disea...

Recall that Ew is the lattice of Muchnik degrees of nonempty effectively compact sets in Euclidean space. We solve a long-standing open problem by proving that Ew is dense, i.e., satis…es 8x8y (x < y ) 9z (x < z < y)). Our proof combines an oracle construction with hyperarithmetical theory.

Fulvic acid (FA) is a water-soluble component of natural organic matter whose environmental and organic geochemistry is routinely correlated to its molecular weight. In an attempt to examine the usefulness of laser desorption (LD) mass spectrometry to unambiguously determine this characteristic, laser wavelengths of 10.6 mm, 1.06 mm and 355 nm were evaluated using the four International Humic S...

The positive mass theorem of general relativity to be addressed here states that the total mass of an isolated gravitational system (viewed from spatial infinity, known as the ADM mass) must be non-negative if its local mass density is non-negative everywhere, and in fact the mass is strictly positive unless the space-time is flat. In this essay we are only concerned with the first part of this...

We propose a type of elastic metamaterial comprising fluid-solid composite inclusions which can possess a negative shear modulus and negative mass density over a large frequency region. Such a material has the unique property that only transverse waves can propagate with a negative dispersion while longitudinal waves are forbidden. This leads to many interesting phenomena such as negative refra...

A mechanical model representing an acoustic metamaterial that exhibits simultaneously negative mass density and negative Young's modulus was proposed. Wave propagation was studied in the frequency range of double negativity. In view of positive energy flow, it was found that the phase velocity in this range is negative. This phenomenon was also observed using transient wave propagation finite-e...

It is shown that the infinite energy density of zero-point radiation can be renormalized to a finite value, K c o ρ 2 , where K o ρ is the inertial mass density corresponding to gravitational mass density ρ o , by inclusion of gravitational self-potential energy, provided that 4 2 π ρ G R o = 3 2 Kc , which is the condition that K c o ρ 2 closes the universe at radius R. When material mass m * ...