scholarly journals Comprehensive investigation of the symmetric space-star configuration in the nucleon-deuteron breakup

2021 ◽  
Vol 104 (1) ◽  
Author(s):  
H. Witała ◽  
J. Golak ◽  
R. Skibiński ◽  
K. Topolnicki ◽  
E. Epelbaum ◽  
...  
Keyword(s):  
Symmetric Space ◽  
Comprehensive Investigation ◽  
Deuteron Breakup ◽  
Space Star ◽  
Star Configuration

SEARCH FOR SPACE STAR ANOMALY IN pd BREAKUP REACTION AT 13MeV

2003 ◽  
Vol 18 (02n06) ◽  
pp. 436-439 ◽  
Author(s):  
T. ISHIDA ◽  
T. YAGITA ◽  
S. OCHI ◽  
S. NOZOE ◽  
K. TSURUTA ◽  
...  
Keyword(s):  
Cross Section ◽  
Incident Energy ◽  
Breakup Reaction ◽  
Breakup Cross Section ◽  
Systematic Measurement ◽  
Space Star ◽  
Star Configuration

Systematic measurement of D(p,pp)n cross section has been made at an incident energy of 13MeV around the space star configuration. In spite of the anomaly found in nd breakup cross section, no anomaly has been found in pd breakup.

scholarly journals Current stage of studies of the star configurations at intermediate energies with the use of the BINA detector

2020 ◽  
Author(s):  
Andrzej Wilczek ◽  
Albert Szadziński ◽  
Kazimierz Bodek ◽  
Izabela Ciepał ◽  
Mohammad Eslami-Kalantari ◽  
...  
Keyword(s):  
Cross Section ◽  
Theoretical Calculations ◽  
Breakup Cross Section ◽  
Deuteron Breakup ◽  
Intermediate Energies ◽  
Systematic Uncertainties ◽  
Space Star ◽  
Large Acceptance ◽  
Current Stage ◽  
Star Configurations

The~Space Star Anomaly in proton-deuteron breakup cross-section occurs at energies of about 10~MeV. Data for higher energies are sparse. Therefore, a~systematic scan over star configurations in the~range of intermediate energies between 50 and 100 MeV/nucleon is carried out on the~basis of data collected with the~large acceptance BINA detector. The~preliminary cross section results for forward star configurations at 80 MeV/nucleon slightly surpass the~theoretical calculations, but the~systematic uncertainties are still under study. Also, a~new variable describing rotation of star configurations is proposed.

Cross-section measurements of the space-star configuration in N-D breakup at 13.0 MeV

1995 ◽  
Author(s):  
H. R. Setze ◽  
C. R. Howell ◽  
R. T. Braun ◽  
D. E. Gonzalez Trotter ◽  
A. H. Hussein ◽  
...  
Keyword(s):  
Cross Section ◽  
Space Star ◽  
Star Configuration

SEARCH FOR ANOMALY AROUND SPACE STAR CONFIGURATION IN pd REACTION

2003 ◽  
Author(s):  
T. ISHIDA ◽  
T. YAGITA ◽  
S. OCHI ◽  
S. NOZOE ◽  
K. TSURUTA ◽  
...  
Keyword(s):  
Space Star ◽  
Star Configuration

Hexachlorobenzene toxicity in the rat ovary: II. Ultrastructure induced by medium (10 mg/kg) dose exposure

1992 ◽  
Vol 50 (1) ◽  
pp. 668-669
Author(s):  
Amreek Singh ◽  
Warren G. Foster ◽  
Anna Dykeman ◽  
David C. Villeneuve
Keyword(s):  
Germ Cells ◽  
Primordial Germ Cells ◽  
Surface Epithelium ◽  
Morphological Parameters ◽  
Comprehensive Investigation ◽  
Ovary Surface Epithelium ◽  
Rat Ovary ◽  
High Doses

Hexachlorobenzene (HCB) is a known toxicant that is found in the environment as a by-product during manufacture of certain pesticides. This chlorinated chemical has been isolated from many tissues including ovary. When administered in high doses, HCB causes degeneration of primordial germ cells and ovary surface epithelium in sub-human primates. A purpose of this experiment was to determine a no-effect dose of the chemical on the rat ovary. The study is part of a comprehensive investigation on the effects of the compound on the biochemical, hematological, and morphological parameters in the monkey and rat.

Hypoelliptic Laplacian and Orbital Integrals (AM-177)

2011 ◽  
Author(s):  
Jean-Michel Bismut
Keyword(s):  
Fixed Point ◽  
Symmetric Space ◽  
Heat Kernel ◽  
Geodesic Flow ◽  
Casimir Operator ◽  
Index Theory ◽  
Weighted Sum ◽  
Orbital Integrals ◽  
Hypoelliptic Heat Kernel ◽  
Wave Kernel

This book uses the hypoelliptic Laplacian to evaluate semisimple orbital integrals in a formalism that unifies index theory and the trace formula. The hypoelliptic Laplacian is a family of operators that is supposed to interpolate between the ordinary Laplacian and the geodesic flow. It is essentially the weighted sum of a harmonic oscillator along the fiber of the tangent bundle, and of the generator of the geodesic flow. In this book, semisimple orbital integrals associated with the heat kernel of the Casimir operator are shown to be invariant under a suitable hypoelliptic deformation, which is constructed using the Dirac operator of Kostant. Their explicit evaluation is obtained by localization on geodesics in the symmetric space, in a formula closely related to the Atiyah-Bott fixed point formulas. Orbital integrals associated with the wave kernel are also computed. Estimates on the hypoelliptic heat kernel play a key role in the proofs, and are obtained by combining analytic, geometric, and probabilistic techniques. Analytic techniques emphasize the wavelike aspects of the hypoelliptic heat kernel, while geometrical considerations are needed to obtain proper control of the hypoelliptic heat kernel, especially in the localization process near the geodesics. Probabilistic techniques are especially relevant, because underlying the hypoelliptic deformation is a deformation of dynamical systems on the symmetric space, which interpolates between Brownian motion and the geodesic flow. The Malliavin calculus is used at critical stages of the proof.

Survey of Chinese Cowpea Cultivars for Phenolic Compounds and Antioxidant Activity

2018 ◽  
Vol 17 (4) ◽  
pp. 337-348
Author(s):  
Bai Zhouya ◽  
Huang Xiaojun ◽  
Meng Jinxia ◽  
Kan Lijiao ◽  
Nie Shaoping
Keyword(s):  
Phenolic Compounds ◽  
Phenolic Content ◽  
Antioxidant Activities ◽  
Jiangxi Province ◽  
Total Phenolic ◽  
Total Flavonoid Content ◽  
Flavonoid Content ◽  
Comprehensive Investigation ◽  
Cowpea Cultivars ◽  
P Distribution

Distribution of phenolic compounds and antioxidant activities was surveyed in 24 varieties of Chinese cowpea from 4 provinces. Identity of phytochemicals were determined by UPLC-ESIQTOF-MS/MS and quantified by HPLC-ESI-QqQ-MS/MS. Seven phenolic acids, 16 flavonoids and 9 other compounds were identified and several of these were quantified. Quercetin-3-glucoside and kaempferol-glucoside were the major phenolic compounds. In addition, our study indicated that OJYDH cultivar from Jiangxi province had the highest total phenolic content, total flavonoid content and stronger antioxidant activities than other cowpea cultivars. This study made a comprehensive investigation on antioxidants from cowpea and provided the useful data to support its function.

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