RELATIVISTIC COULOMB EXCITATION OF 124 Sn Lihtar, I.; Kudaibergenova, E.; Feijoo-Fontán, M. ...
Acta Physica Polonica. B, Proceedings Supplement,
2024, Letnik:
17, Številka:
3
Journal Article
Recenzirano
The Coulomb excitation of 124, 128, 130, 132, 134Sn isotopes in the electric field of a Pb target have been studied using the R3B setup as a part of the FAIR Phase-0 program. The experiment was ...motivated by the possibility of using the nuclear dipole response to infer valuable information on the slope of the symmetry energy of the nuclear equation of state. Measurements were performed in inverse kinematics at relativistic energies of 750 MeV/u and 904 MeV/u. The analysis method and preliminary results for the decay channel with a single outgoing neutron for 124Sn are reported.
A fundamental framework to describe nuclear matter as a function of pressure and nuclear isospin asymmetry is the nuclear Equation of State (EoS). Constraining the parameters of the EoS is one of the ...central issues in nuclear physics, especially since the slope parameter L has not yet been constrained well experimentally. It has been identified that a precise determination of the neutron-removal cross section in neutron-rich nuclei, which correlates with the neutron-skin thickness, would provide a more precise constraint on L. To this end, an experiment was performed at the R3B setup in the GSI Helmholtzzentrum für Schwerionenforschung GmbH as a part of the FAIR Phase-0 program. The reactions are studied in inverse kinematics with neutron-rich tin isotopes in the mass range of A = 124–134 on carbon targets of different thicknesses. The reaction products have been measured at beam energies of 400–900 MeV/u in a kinematically complete manner. In this communication, the analysis of124Sn+12C at 900 MeV/u is presented. The charge-exchange reactions, resulting processes, and their role in the calculation of other reaction cross sections are discussed.
The experimental data collected during the S515 experiment performed by the R
3
B collaboration at GSI/FAIR represent a great opportunity to investigate nucleon knockout reactions of exotic nuclei in ...the region of Sn using complete kinematics measurements. These cross sections can be used in the future to investigate the quenching in the knockout of the minority species (neutrons or protons) in nuclei far from stability. Some of the arguments put forward are the underestimation of the knockout of deeply bound nucleons, final state interactions or the role of short-range correlations (SRC). Recently, several works based on inclusive measurements have shown that these SRCs could reduce the single nucleon knockout cross sections by around 50%, depending on the neutron excess (N/Z) of the initial projectile. The S515 data can help us to go further in this investigation because it allows to correlate the knockout cross sections of one, two or more nucleons with the number of protons and neutrons emitted from the target and which can be detected by the CALIFA and NeuLAND detectors, respectively, and perform complete kinematical studies on the nature of the event (SRC, evaporation, emission of clusters, final-state interactions...). Here the results obtained for the charge distribution of reaction residues are presented, which is one of the first steps of the still on-going analysis.
Nowadays, drip irrigation is a promising technology for optimizing plant development conditions and allowing the introduction of necessary nutrients to plants. The study aimed to establish the ...effects of drip irrigation with various levels of foliar dressing of mineral fertilizer Kristalon on maize (Zea mays L.) and achieve its maximum genetic potential for grain yield to enhance overall production. A field experiment implies exploratory research and quantifies the effects of drip irrigation with foliar Kristalon dressing to validate and introduce scientific achievements in agricultural production. Various technological methods applied to corn cultivation sought to increase its green mass and yield. In the experimental treatments, the corn crop irrigation engaged drip irrigation with different foliar dressings of Kristalon in the phases of the 5th and 11th tillering leaf and stem elongation with the norms of 2, 4, and 6 kg Kristalon ha-1, respectively, in comparison with the control treatment (no Kristalon foliar dressing). Corn foliar treatment with fertilizer Kristalon preparation with a norm of 2, 4, and 6 kg ha-1 produced grain yields of 11.43, 12.27, and 12.33 t ha-1, respectively, compared with the control treatment (9.67 t ha-1). The fertilizer Kristalon at 2, 4, and 6 kg ha-1 produced 18.2%, 26.9%, and 27.5% more grain yield than the control. However, the Kristalon foliar dressing at 6 kg ha-1 did not significantly increase the maize grain yield, and there was an increase of 0.6% compared with the 4 kg ha-1 level. Therefore, corn foliar dressing with fertilizer Kristalon at 4 kg ha-1 is an option for better production under the environmental conditions of South Kazakhstan.
Background
At present, little is known about the genetic background of breast cancer (BC) in Kyrgyz. Therefore, the aim of this study was to assess gene-to-gene interactions and the contribution of ...p.Arg72Pro (
TP53
gene), p.Gln399Arg (
XRCC1
gene), p.Arg194Trp (
XRCC1
gene), g.4682G > A (
TNFα
gene), p.Val353Ala (
HMMR
gene), c.14 + 309 T > G (
MDM2
gene) and g.38444 T > G (
PALB2
gene) polymorphic loci in breast cancer (BC) risk in females of Kyrgyz ethnicity.
Methods
The case–control study comprised 103 females with histologically verified BC and 102 controls with no cancer. We used polymerase chain reaction-based restriction fragment length polymorphism to genotype polymorphic loci.
Results
Gln/Arg heterozygous variant of
XRCC1
gene’s p.Gln399Arg locus, as well as combined carriage of Arg/Gln//Arg/Pro of
XRCC1
/
TP53
; Arg/Gln//T/T of
XRCC1
/
MDM2
; Arg/Gln//G/G and Arg/Gln//G/A of
XRCC1
/
TNFα
, Arg/Gln//T/T of
XRCC1
/
PALB2
; Arg/Gln//Arg/Arg and Arg/Gln//Arg/Trp for p.Gln399Arg and p.Arg194Trp polymorphic loci of
XRCC1
were associated with BC in Kyrgyz females.
Conclusion
TP53, XRCC1, TNFα, HMMR, MDM2
and
PALB2
genes’ polymorphic site combinations appear to be candidate markers of genetic predisposition to BC in Kyrgyz population and prompt targeted personalized care.
Immunohistochemical study of breast cancer has been practiced for several decades; however, the standardization of this process has not yet been achieved, despite substantial advances in methodology. ...The paper presents practical guidelines and standards for testing breast carcinomas, which can be used as day-to-day control of the work of an immunohistochemistry laboratory. It considers the concept of external quality control in the immunohistochemical detection of estrogen (ER) and progesterone (PR) receptors, as well as the problems of harmonization in the immunohistochemical analysis of breast carcinomas, by using the nuclear biomarkers, such as ER and PR, as an example. The agreed standard-based external control in determining the optimal result may yield reproducible data for use in clinical practice.
Abstract P5-10-05: Not presented Semetei Kyzy, A; Makimbetov, E; Kudaibergenova, I ...
Cancer research (Chicago, Ill.),
02/2019, Letnik:
79, Številka:
4_Supplement
Journal Article
Recenzirano
Abstract
This abstract was not presented at the conference.
Citation Format: Semetei Kyzy A, Makimbetov E, Kudaibergenova I, Isakova J. Not presented abstract. In: Proceedings of the 2018 San Antonio ...Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P5-10-05.
