A specific inhibitor of fertilization of the sea urchin Hemicentrotus pulcherrimus was isolated from the extract of the marine sponge, Jaspis species. Chemical and spectral data of the purified substance, which was designated jaspisin, showed that it is a novel substance with the structure of sodium (E)-5,6-dihydroxystyryl sulfate. Jaspisin at 15 micrograms/ml inhibited exoplasmic fusion of the...

The endothermic nuclear reaction between thermal tritons and high energy protons can represent an important contribution to the total neutron yield in tokamak plasmas heated by radio-frequency waves, as the first JET experiments have demonstrated [M.Mantsinen et al., Nucl. Fusion 41 (2001), 1815]. A further study based on more recent JET experiments was reported in [M.Santala et al., Plasma Phy...

A real-time reverse transcription polymerase chain reaction (RT-PCR) method is described that enabled the detection and quantification of E2A-PBX1 fusion gene transcripts associated with t(1;19). The method was highly reproducible and offered exceptional sensitivity at 5 fg of fusion transcript per reaction, without the need for a nested PCR primer design. To illustrate the usefulness of this n...

The interaction of preincubated ram sperm with zona-free hamster oocytes was studied by scanning and transmission electron microscopy. The behaviour of the sperm cells was quite different, depending on whether the acrosomal reaction had taken place or not. The apical ridge of intact spermatozoa contacted the oocyte surface, and egg microvilli spread onto the anterior segment but no fusion ensue...

Fusion research has focused on the goal of a fusion power source that utilizes deuterium and tritium (D-T) because the reaction rate is relatively large. Fusion reactors based on the deuterium-deuterium (D-D) reaction however, might be superior to D-T based reactors in so far as they minimize the power produced in neutrons and do not requires the breeding of tritium. We explore an alternative D...

Some nearly-symmetric fusion reactions are systematically investigated with the improved quantum molecular dynamics (ImQMD) model. By introducing two-body inelastic scattering in the Fermi constraint procedure, the stability of an individual nucleus and the description of fusion cross sections at energies near the Coulomb barrier can be further improved. Simultaneously, the quasi-fission proces...

The combined dinuclear system (DNS) and statistical model implanted in KEWPIE2 have been used to study the prospects for synthesis of a superheavy element (SHE) with $Z=119$ $^{54}$Cr+$^{243}$Am fusion reaction. method calculation has verified by description evaporation residue cross sections measured $^{48}$Ca+$^{243}$Am calculated results partial total complete fusion, quasifission, fast fiss...

We adapted a fusion polymerase chain reaction (PCR) strategy to synthesize gene disruption alleles of any sequenced yeast gene of interest. The first step of the construction is to amplify sequences flanking the reading frame we want to disrupt and to amplify the selectable marker sequence. Then we fuse the upstream fragment to the marker sequence by fusion PCR, isolate this product and fuse it...

c. Implications: For experimental verification of this new potential, we find possible application in the context of Condensed Matter Nuclear reaction [5][6]. According to Takahashi's research, it is more likely to get condensed matter nuclear reaction using cluster of deuterium (4D) rather than using D+D reaction (as in hot-fusion, in this process Coulomb barrier is very high). The probable re...

Abstract This article summarizes recent progress in our understanding of the reaction mechanisms leading to formation superheavy nuclei cold and hot fusion reactions. Calculations are done within Fusion-by-Diffusion (FBD) model using new nuclear data tables by Jachimowicz et al. (At Data Nucl Tables 138, 101393, 2021). The synthesis is treated a standard way as three-step process (i.e., capture...