نتایج جستجو برای: fragmentation measurement
تعداد نتایج: 474775 فیلتر نتایج به سال:
introduction: the amount of expression of bax and bcl-2 genes in infertile men’s sperm as well as its association with sperm parameters and dna fragmentation index is an issue which has not been studied yet. in this research, it is assumed that up-regulation of bax and downregulation of bcl-2 are directly associated with sperm dna fragmentation. methods: after obtaining semen samples from the p...
the objectives of this work was to examine the toxicological effect and molecular changes caused by a heavy metal pollutant mercuric chloride (hgcl2), in fresh water snakehead channa punctatus, locally known as taki fish in bangladesh. when fishes were exposed to hgcl2, it induced death of the fishes in a concentration-dependent manner. 1 mm, the highest concentration tested in this study, was ...
background apoptosis or programmed cell death is an essential process for elimination of damaged cells. also, induction of apoptosis is fundamental for treating cancer. screening for agents that induce apoptosis in tumor cells help in the development of novel agents for cancer treatment. numerous studies suggest that the exposure of tumor cells to statins can lead to cell death via two separate...
The present study describes the fragmentation under electron ionization (EI) of gas phase serine and threonine amino acids. Ab initio methods were performed to calculate the fragmentation paths and interpret the mass spectra. The six lowest energy conformers of L-serine, L-threonine and L-allo-threonine were obtained with B3LYP, G3MP2 and MP2 methods. The adiabatic and vertical ionizat...
Nowadays, heavy mesons and baryons are produced and decayed at LHC in abundance. These processes are good sources to study the QCD theory, especially to study the hadron structures. Therefore, the phenomenology of heavy hadrons fragmentation function is a basic and important subject in the Particle Physics. In the present work, we replicate the calculation heavy meson fragmentation function in...
The potential of the high resolution nuclear track detector (NTD) CR-39 is examined carefully for the measurement of relativistic nuclear projectile fragmentation cross sections and studies of related processes using the experience of many years of such measurements. The charge resolution and the charge resolving power of CR-39 detectors for the measurements of 158 A GeV Pb projectiles and thei...
Netalyzr is a widely used network measurement and diagnosis tool. To date, it has collected 198,000 measurement sessions from 146,000 distinct IP addresses. One of the primary focus areas of Netalyzr is DNS behavior, including DNS resolver properties, common name lookups, NXDOMAIN wildcarding, lookup performance, and on-the-wire manipulations. Additional tests detect and categorize the behavior...
Measurement of the charged-particle multiplicity inside jets from √ s = 8 TeV pp collisions with the ATLAS detector Abstract The number of charged particles inside jets is a widely used discriminant for identifying the quark or gluon nature of the initiating parton and is sensitive to both the perturbative and non-perturbative components of fragmentation. This paper presents a measurement of th...
The design and performance of a high-resolution momentum-imaging spectrometer for ions which is optimized for experiments using synchrotron radiation is presented. High collection efficiency is achieved by a focusing electrostatic lens; a long drift tube improves mass resolution and a position-sensitive detector enables measurement of the transverse momentum of ions. The optimisation of the len...
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