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Journal articles on the topic '12C Beam fragmentation'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

Gunzert-Marx, K., D. Schardt, and R. S. Simon. "Fast neutrons produced by nuclear fragmentation in treatment irradiations with 12C beam." Radiation Protection Dosimetry 110, no. 1-4 (2004): 595–600. http://dx.doi.org/10.1093/rpd/nch138.

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2

Duan, Hai-Rui, Jing-Ya Wu, Tian-Li Ma, et al. "Fragmentation of carbon on elemental targets at 290AMeV." International Journal of Modern Physics E 30, no. 06 (2021): 2150046. http://dx.doi.org/10.1142/s0218301321500464.

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The total charge-changing cross-sections and the partial cross-sections for projectile fragments (PFs) production for the fragmentation of 12C on C, Al, Cu, Pb and CH2 targets at the highest energy of 290[Formula: see text]A[Formula: see text]MeV were studied. It was found that the total charge-changing reaction cross-sections and the partial reaction cross-sections of PFs production were independent of the beam energy, and increased with increase of mass of target for the same beam energy. The total charge-changing reaction cross-section was the same as the prediction of Bradt–Peters semi-emp

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3

Ounoughi, Nabil, Yamina Dribi, Abdelmalek Boukhellout, and Faycal Kharfi. "Physical aspects of Bragg curve of therapeutic oxygen-ion beam: Monte Carlo simulation." Polish Journal of Medical Physics and Engineering 28, no. 3 (2022): 160–68. http://dx.doi.org/10.2478/pjmpe-2022-0019.

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Abstract Introduction: Oxygen (16O) ion beams have been recommended for cancer treatment due to its physical Bragg curve feature and biological property. The goal of this research is to use Monte Carlo simulation to analyze the physical features of the 16O Bragg curve in water and tissue. Material and methods: In order to determine the benefits and drawbacks of ion beam therapy, Monte Carlo simulation (PHITS code) was used to investigate the interaction and dose deposition properties of oxygen ions beam in water and human tissue medium. A benchmark study for the depth–dose distribution of a 16

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4

Farés, G., R. Bimbot, S. Hachem, et al. "Fragmentation of 95 MeV/u 12C and 75 MeV/u 13C. Application to secondary-beam production." European Physical Journal A 19, no. 1 (2004): 105–16. http://dx.doi.org/10.1140/epja/i2002-10247-9.

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5

Ghorai, Atanu, Nitai P. Bhattacharyya, Asitikantha Sarma, and Utpal Ghosh. "Radiosensitivity and Induction of Apoptosis by High LET Carbon Ion Beam and Low LET Gamma Radiation: A Comparative Study." Scientifica 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/438030.

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Cancer treatment with high LET heavy ion beam, especially, carbon ion beam (12C), is becoming very popular over conventional radiotherapy like low LET gamma or X-ray. Combination of Poly(ADP-ribose) polymerase (PARP) inhibitor with xenotoxic drugs or conventional radiation (gamma or X-ray) is the newer approach for cancer therapy. The aim of our study was to compare the radiosensitivity and induction of apoptosis by high LET12C and low LET gamma radiation in HeLa and PARP-1 knocked down cells. We did comet assay to detect DNA breaks, clonogenic survival assay, and cell cycle analysis to measur

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6

Gorin, A. M., S. V. Evdokimov, A. A. Zaitsev та ін. "Study of the α Fragmentation of the 12C and 16O Nuclei in a 7 GeV/c Positive Hadron Beam of the U-70 Accelerator Complex". Physics of Atomic Nuclei 87, № 12 (2024): 1890–98. https://doi.org/10.1134/s1063778824090138.

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7

Haettner, E., H. Iwase, and D. Schardt. "Experimental fragmentation studies with 12C therapy beams." Radiation Protection Dosimetry 122, no. 1-4 (2006): 485–87. http://dx.doi.org/10.1093/rpd/ncl402.

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8

Kirkby, Karen Joy, Norman Francis Kirkby, Neil Gunn Burnet, et al. "Heavy charged particle beam therapy and related new radiotherapy technologies: The clinical potential, physics and technical developments required to deliver benefit for patients with cancer." British Journal of Radiology 93, no. 1116 (2020): 20200247. http://dx.doi.org/10.1259/bjr.20200247.

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In the UK, one in two people will develop cancer during their lifetimes and radiotherapy (RT) plays a key role in effective treatment. High energy proton beam therapy commenced in the UK National Health Service in 2018. Heavier charged particles have potential advantages over protons by delivering more dose in the Bragg peak, with a sharper penumbra, lower oxygen dependence and increased biological effectiveness. However, they also require more costly equipment including larger gantries to deliver the treatment. There are significant uncertainties in the modelling of relative biological effect

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9

TRAUTMANN, W., P. ADRICH, T. AUMANN, et al. "N/Z DEPENDENCE OF PROJECTILE FRAGMENTATION." International Journal of Modern Physics E 17, no. 09 (2008): 1838–49. http://dx.doi.org/10.1142/s0218301308010829.

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The N/Z dependence of projectile fragmentation at relativistic energies has been studied in a recent experiment at the GSI laboratory with the ALADiN forward spectrometer coupled to the LAND neutron detector. Besides a primary beam of 124 Sn , also secondary beams of 124 La and 107 Sn delivered by the FRS fragment separator have been used in order to extend the range of isotopic compositions of the produced spectator sources. With the achieved mass resolution of ΔA/A ≈ 1.5%, lighter isotopes with atomic numbers Z ≤ 10 are individually resolved. The presently ongoing analyses of the measured is

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10

Lazzeroni, M., and A. Brahme. "24 11C POSITRON EMITTER BEAMS PRODUCED BY 12C PROJECTILE FRAGMENTATION FOR IMPROVED ACCURACY IN DOSE DELIVERY VERIFICATION." Radiotherapy and Oncology 102 (March 2012): S5—S6. http://dx.doi.org/10.1016/s0167-8140(12)70011-7.

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11

Lazzeroni, Marta, and Anders Brahme. "Effective source size, radial, angular and energy spread of therapeutic 11C positron emitter beams produced by 12C fragmentation." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 320 (February 2014): 26–36. http://dx.doi.org/10.1016/j.nimb.2013.12.004.

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12

STEER, S. J., ZS PODOLYÁK, S. PIETRI, et al. "ISOMERIC DECAY STUDIES IN NEUTRON-RICH N ≈ 126 NUCLEI." International Journal of Modern Physics E 18, no. 04 (2009): 1002–7. http://dx.doi.org/10.1142/s0218301309013154.

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Heavy neutron-rich nuclei were populated via relativistic energy fragmentation of a E / A = 1 GeV 208 Pb beam. The nuclei of interest were selected and identified by a fragment separator and then implanted in a passive plastic stopper. Delayed γ rays following internal isomeric decays were detected by the RISING array. Experimental information was obtained on a number of nuclei with Z = 73-80 ( Ta - Hg ), providing new information both on the prolate-oblate transitional region as well as on the N = 126 closed shell nuclei.

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13

Srivastav, Sumit, and Bhas Bapat. "Post collision analyzer to study charge-exchange processes in ion-molecule collisions." Review of Scientific Instruments 93, no. 11 (2022): 113306. http://dx.doi.org/10.1063/5.0121351.

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We have designed an electrostatic charge state analyzer for ion beams having energies in the range of 5–20 keV/ q. It is primarily built to investigate the different ionization processes involved in the slow ( v < 1 a.u.) impact of highly charged ions on molecules. The analyzer is a cylindrical deflector analyzer (CDA) based on a pair of concentric cylindrical sectors of radii 110.2 and 95 mm, subtending an angle of 127° at its center. Additionally, an Einzel lens and a quadrupole deflector are deployed to focus and steer the ion beam. The compact design of the analyzer permits easy integra

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Bartram, G., and Zs Podolyák. "Isomeric Transitions in the Neutron-rich \(N=126\) Region Using the DESPEC Setup at GSI." Acta Physica Polonica B Proceedings Supplement 18, no. 2 (2025): 1. https://doi.org/10.5506/aphyspolbsupp.18.2-a24.

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In May 2022 at the GSI Darmstadt, Germany, a \(^{208}\)Pb beam at 1 GeV/\(u\) was used to populate neutron-rich fragmentation products at \(N\approx 126\). Fragmentation products were separated and implanted in AIDA Si stoppers, surrounded by eight newly developed DEGAS and two EUROBALL high-purity Ge detectors. Delayed \(\gamma \) emissions revealed isomeric decays in \(^{204}\)Pt, confirming previous findings. An isomeric half-life of \(160 \pm 30\) ns was measured for the \(10^+\) state, and a combined half-life of \(7.9 \pm 1.3\) \(\mu \)s for the \(5^-\) and \(7^-\) states. Additionally,

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15

Morales, A. I. "β-decay studies across N = 126". Journal of Physics: Conference Series 2586, № 1 (2023): 012048. http://dx.doi.org/10.1088/1742-6596/2586/1/012048.

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Abstract With the advent of the first Radioactive Ion Beam facilities of new generation, the investigation of the neutron-rich side of the nuclear chart has experienced an impressive progress. However, the discovery and study of new nuclear species in the region around the heaviest known neutron shell closure, N = 126, is still one of the most coveted experimental challenges. At a slower pace, the exploitation of alternative reaction mechanisms and/or advanced instrumentation has opened the possibility to investigate the isomeric and β decay of new, moderately neutron-rich N ∼ 126 nuclei. Thes

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16

Kulikovskaya, A. A., B. M. Abramov, Yu A. Borodin, et al. "Charge exchange processes during carbon ion fragmentation at an energy of 300 MeV/nucleon: comparison with models of ion-ion interactions." Известия Российской академии наук. Серия физическая 87, no. 8 (2023): 1130–34. http://dx.doi.org/10.31857/s0367676523702034.

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Experimental data are presented on the differential cross sections to produce 11Be, 12Be, and 12B isotopes at the carbon beam fragmentation with an energy of 300 MeV/nucleon in the FRAGM experiment conducted based on the ITEP-TWAС multipurpose accelerator complex. The obtained experimental data are compared with the predictions of the models of ion-ion interactions: binary cascade and quantum molecular dynamics model.

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17

TRAUTMANN, W., S. BIANCHIN, A. S. BOTVINA, et al. "THE SYMMETRY ENERGY IN NUCLEAR REACTIONS." International Journal of Modern Physics E 19, no. 08n09 (2010): 1653–63. http://dx.doi.org/10.1142/s0218301310016077.

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New results for the strength of the symmetry energy are presented which illustrate the complementary aspects encountered in reactions probing nuclear densities below and above saturation. A systematic study of isotopic effects in spectator fragmentation was performed at the ALADIN spectrometer with 124 Sn primary and 107 Sn and 124 La secondary beams of 600 MeV/nucleon incident energy. The analysis within the Statistical Fragmentation Model shows that the symmetry-term coefficient entering the liquid-drop description of the emerging fragments decreases significantly as the multiplicity of frag

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18

Czogalik, M., C. Nociforo, M. Alfonsi, et al. "Plastic scintillator fiber detectors for heavy ion trajectory reconstruction for the Super-FRS at FAIR." Journal of Instrumentation 19, no. 06 (2024): C06008. http://dx.doi.org/10.1088/1748-0221/19/06/c06008.

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Abstract At the FAIR facility, currently under construction at GSI (Darmstadt), a 1.5 AGeV uranium beam with intensities up to 2.5 × 1011 238U/spill will impinge on a graphite target at the entrance of the Super-FRS for the production of a wide range of rare isotopes by projectile fission and fragmentation. The next generation in-flight magnetic separator Super-FRS, operated up to a magnetic rigidity of 20 Tm with a large angular acceptance (Δθ = ± 40 mrad, Δϕ = ± 20 mrad) and momentum acceptance (Δ p/p = ± 2.5%), requires a new generation of tracking detectors with a position resolution of 0.

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19

Benzoni, Giovanna, and Marta Polettini. "New half-lives in the polonium isotopic chain." EPJ Web of Conferences 324 (2025): 00006. https://doi.org/10.1051/epjconf/202532400006.

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The astrophysical rapid-neutron capture process (r-process) of explosive nucleosynthesis is responsible for the formation of half of the heavy nuclei above Fe. Actinides are produced towards the end of this process, when the neutron flux is expected to be minimal. Given that, in this heavy region of the chart of nuclides, the r-process path runs far away from the accessible species, experimental inputs on β decay for nuclei beyond N=126 are particularly useful to test predictions of global nuclear models. In this paper, results from a recent experiment performed by the HISPEC-DESPEC collaborat

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20

Watanabe, Yutaka, Yoshikazu Hirayama, Momo Mukai, et al. "Spectroscopy of neutron-rich nuclei produced by multinucleon transfer reactions at KISS." EPJ Web of Conferences 306 (2024): 01016. http://dx.doi.org/10.1051/epjconf/202430601016.

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Properties such as lifetimes and masses of neutron-rich nuclei are key parameters for elucidating the astrophysical rapid neutron capture process (r-process). Due to the lack of experimental nuclear data in the relevant extremely neutron-rich region, especially near and above N = 126, the predictions of theoretical nuclear models are crucial for simulating r-process nucleosynthesis. Experimental studies of the properties and structures of neutron-rich nuclei from near the β stability line up to the r-process path provide important inputs to these theoretical models, improving the accuracy of p

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21

Romanenko, I. V., A. V. Melnyk, and V. V. Piliponova. "Histologic changes in the liver and kidney tissues of rats with acute alcohol injury and metabolic correction." Reports of Vinnytsia National Medical University 27, no. 3 (2023): 377–83. http://dx.doi.org/10.31393/reports-vnmedical-2023-27(3)-04.

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Annotation. The liver and kidneys are among the organs that often suffer from the toxic effects of ethanol. The issue of drug correction of alcoholic organ damage, and in particular the role of H2S, remains insufficiently studied. The aim of the study was to evaluate the role of quercetin, hydrogen sulphide donor NaHS and their combination in the correction of morphological changes in the liver and kidneys of rats with acute alcohol injury (AAI). The study was conducted on 25 white male rats weighing 120-130 g, divided into five groups (5 rats in each group). Animals of groups 2-5 were modelle

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22

Behrendt, M., M. Schartmann, and A. Burkert. "The possible hierarchical scales of observed clumps in high-redshift disc galaxies." Monthly Notices of the Royal Astronomical Society 488, no. 1 (2019): 306–23. http://dx.doi.org/10.1093/mnras/stz1717.

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ABSTRACTGiant clumps on ∼kpc scales and with masses of $10^8\rm {-}10^9 \, \mathrm{M_{\odot }}$ are ubiquitous in observed high-redshift disc galaxies. Recent simulations and observations with high spatial resolution indicate the existence of substructure within these clumps. We perform high-resolution simulations of a massive galaxy to study the substructure formation within the framework of gravitational disc instability. We focus on an isolated and pure gas disc with an isothermal equation of state with T = 104 K that allows capturing the effects of self-gravity and hydrodynamics robustly.

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23

Grzegorczyk, Adrian, and Marcin Mamajek. "A 70 W thulium-doped all-fiber laser operating at 1940 nm." Photonics Letters of Poland 11, no. 3 (2019): 81. http://dx.doi.org/10.4302/plp.v11i3.928.

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An all-fiber thulium-doped fiber laser operating at a wavelength of 1940 nm is reported. A maximum output continuous-wave power of 70.7 W with a slope efficiency of 59%, determined with respect to the absorbed pump power, was demonstrated. The laser delivered almost a single-mode beam with a beam quality factor of < 1.3.Full Text: PDF ReferencesM. N. Zervas and C. A. Codemard, "High Power Fiber Lasers: A Review", IEEE J. Sel. Top. Quantum Electron. 20, 0904123 (2014). CrossRef D. J. Richardson, J. Nilsson, and W. A. Clarkson. "High power fiber lasers: current status and future perspectives

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24

Saße, Pascal, Jessica Stolzenberg, Kilian-Simon Baumann, Bjoern Poppe, and Hui Khee Looe. "Impact of nuclear fragmentation on the stopping power ratio of ¹²C ion beams." Physics in Medicine & Biology, December 3, 2024. https://doi.org/10.1088/1361-6560/ad9a36.

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Abstract Objective: Nuclear fragmentation generates a diverse dosimetric environment in the path of 12C ion beams. Concise parametrization of the beam’s composition is paramount for determining key correction factors in clinical dosimetry. This study sets out to provide such a parametrization based on detailed Monte Carlo simulations of clinically relevant 12C beams. Special attention was paid to the products of nuclear fragmentations and their importance in determining the stopping power ratios. Approach: Using the Monte Carlo simulation package GATE, the spectral fluence of all primary and s

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25

Battistoni, Giuseppe, Marco Toppi, Vincenzo Patera, and The FOOT Collaboration. "Measuring the Impact of Nuclear Interaction in Particle Therapy and in Radio Protection in Space: the FOOT Experiment." Frontiers in Physics 8 (February 8, 2021). http://dx.doi.org/10.3389/fphy.2020.568242.

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In Charged Particle Therapy (PT) proton or 12C beams are used to treat deep-seated solid tumors exploiting the advantageous characteristics of charged particles energy deposition in matter. For such projectiles, the maximum of the dose is released at the end of the beam range, in the Bragg peak region, where the tumour is located. However, the nuclear interactions of the beam nuclei with the patient tissues can induce the fragmentation of projectiles and/or target nuclei and needs to be carefully taken into account when planning the treatment. In proton treatments, the target fragmentation pro

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26

Toppi, Marco, Guido Baroni, Giuseppe Battistoni, et al. "Monitoring Carbon Ion Beams Transverse Position Detecting Charged Secondary Fragments: Results From Patient Treatment Performed at CNAO." Frontiers in Oncology 11 (June 10, 2021). http://dx.doi.org/10.3389/fonc.2021.601784.

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Particle therapy in which deep seated tumours are treated using 12C ions (Carbon Ions RadioTherapy or CIRT) exploits the high conformity in the dose release, the high relative biological effectiveness and low oxygen enhancement ratio of such projectiles. The advantages of CIRT are driving a rapid increase in the number of centres that are trying to implement such technique. To fully profit from the ballistic precision achievable in delivering the dose to the target volume an online range verification system would be needed, but currently missing. The 12C ions beams range could only be monitore

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27

Toramatsu, Chie, Akram Mohammadi, Hidekatsu Wakizaka, et al. "Tumour status prediction by means of carbon-ion beam irradiation: comparison of washout rates between in-beam PET and DCE-MRI in rats." Physics in Medicine & Biology, August 25, 2023. http://dx.doi.org/10.1088/1361-6560/acf438.

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Abstract Objective. Tumour response to radiation therapy appears as changes in tumour vascular condition. There are several methods for analysing tumour blood circulatory changes one of which is dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), but there is no method that can observe the tumour vascular condition and physiological changes at the site of radiation therapy. Positron emission tomography (PET) has been applied for treatment verification in charged particle therapy, which is based on the detection of positron emitters produced through nuclear fragmentation reactions i

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28

MOMOTA, Sadao, Takashi Ohtsubo, Akira Honma, Atsushi Kitagawa, and Shinji Sato. "Anisotropic momentum distribution of ¹¹B and ¹¹C produced from ¹²C beam at 100 MeV/nucleon." Physica Scripta, June 19, 2023. http://dx.doi.org/10.1088/1402-4896/acdf93.

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Abstract Longitudinal (P L) and transverse (P T) momentum distributions of 11B and 11C produced from a 12C beam with C, Al, Nb, Tb, and Au targets observed at E = 100 MeV/nucleon are investigated. The observed P T distribution systematically changes according to the target and this change in behavior can be consistently explained by the orbital deflection effect, which is determined by the competitive contributions of attractive nuclear and repulsive Coulomb potentials acting between the projectile and target. The comprehensive examination of the observed P L and P T distributions resolves the

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29

De Simoni, Micol, Giuseppe Battistoni, Angelica De Gregorio, et al. "A Data-Driven Fragmentation Model for Carbon Therapy GPU-Accelerated Monte-Carlo Dose Recalculation." Frontiers in Oncology 12 (March 25, 2022). http://dx.doi.org/10.3389/fonc.2022.780784.

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The advent of Graphics Processing Units (GPU) has prompted the development of Monte Carlo (MC) algorithms that can significantly reduce the simulation time with respect to standard MC algorithms based on Central Processing Unit (CPU) hardware. The possibility to evaluate a complete treatment plan within minutes, instead of hours, paves the way for many clinical applications where the time-factor is important. FRED (Fast paRticle thErapy Dose evaluator) is a software that exploits the GPU power to recalculate and optimise ion beam treatment plans. The main goal when developing the FRED physics

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30

Norbury, John W., Giuseppe Battistoni, Judith Besuglow, et al. "Are Further Cross Section Measurements Necessary for Space Radiation Protection or Ion Therapy Applications? Helium Projectiles." Frontiers in Physics 8 (November 30, 2020). http://dx.doi.org/10.3389/fphy.2020.565954.

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The helium (4He) component of the primary particles in the galactic cosmic ray spectrum makes significant contributions to the total astronaut radiation exposure. 4He ions are also desirable for direct applications in ion therapy. They contribute smaller projectile fragmentation than carbon (12C) ions and smaller lateral beam spreading than protons. Space radiation protection and ion therapy applications need reliable nuclear reaction models and transport codes for energetic particles in matter. Neutrons and light ions (1H, 2H, 3H, 3He, and 4He) are the most important secondary particles produ

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31

Parisi, Alessio, Keith M. Furutani, and Chris J. Beltran. "Impact of nuclear fragmentation and irradiation scenarios on the dose‐averaged LET, the RBE, and their relationship for H, He, C, O, and Ne ions." Medical Physics, March 18, 2025. https://doi.org/10.1002/mp.17755.

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AbstractBackgroundProjectile and target fragmentation are nuclear phenomena that can influence the computation of the linear energy transfer (LET) and the relative biological effectiveness (RBE) in external radiotherapy with accelerated ions. Correlations between these two quantities are routinely established during radiobiological experiments to interpret the results and to develop and calibrate RBE models.PurposeThis study systematically evaluates the impact of secondary fragments and irradiation scenarios on the dose‐averaged LET, the RBE, and their correlation in the case of exposures to c

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32

Kiss, Gábor Gyula, and Zsolt Podolyák. "Structure and astrophysical role of the neutron-rich $$55 \le Z \le 92$$ isotopes: status and perspectives." European Physical Journal A 60, no. 9 (2024). http://dx.doi.org/10.1140/epja/s10050-024-01389-1.

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AbstractHeavy neutron-rich nuclei are of great interest. Phenomena like shell evolution ($$N\sim 126$$ N ∼ 126 , $$Z\sim 82$$ Z ∼ 82 ), prolate–triaxial–oblate–spherical shape evolution ($$Z=$$ Z = 70–80), possible deformed shell closures or structure change in the rare-earth region are under intense scrutiny. This latter is closely linked to the rare-earth r-process peak, while the $$N \sim 126$$ N ∼ 126 nuclei are connected to the third r-process peak at $$A \sim 195$$ A ∼ 195 . Recent technical developments (e.g. increasing beam intensities at fragmentation facilities, new detection systems

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33

Guo, Yafei, Yongqing 新加坡 Feng, Zhaoqing Feng, Gao-Chan 雍高产 Yong, and Chun-Wang 马春旺 Ma. "Effects of nucleon-nucleon short-range correlation on fragment generation in isotopic nuclear reactions." Chinese Physics C, May 14, 2025. https://doi.org/10.1088/1674-1137/add872.

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Abstract The effects of nucleon-nucleon short-range correlations lead to the high-momentum tail (HMT) in the nucleon momentum distribution, is displayed by the isospin- and momentum-dependent Lanzhou quantum molecular dynamics (LQMD) transport model. Based on the transport model, we studied the effects of the HMT of nucleon momentum distribution in initialization in isotopic nuclear reactions at a beam energy of 120 MeV/u. The single and double ratios of gas-phase neutron and proton spectra are analyzed and compared with experimental data in central $^{112}$Sn+$^{112}$Sn and $^{124}$Sn+$^{124}

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Chacon, Andrew, Harley Rutherford, Akram Mohammadi, et al. "A quantitative assessment of Geant4 for predicting the yield and distribution of positron-emitting fragments in ion beam therapy." Physics in Medicine & Biology, May 22, 2024. http://dx.doi.org/10.1088/1361-6560/ad4f48.

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Abstract Purpose: To compare the accuracy with which different hadronic inelastic physics models across ten Geant4 Monte Carlo simulation toolkit versions can predict positron-emitting fragments produced along the beam path during carbon and oxygen ion therapy.&#xD;&#xD;Materials and Methods: Phantoms of polyethylene, gelatin or poly(methyl methacrylate) were irradiated with monoenergetic carbon and oxygen ion beams. Post-irradiation, 4D PET images were acquired and parent 11C, 10C and 15O radionuclides contributions in each voxel were determined from the extracted time activity curves

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Xie, Jingchen, Xiao-Fei Gao, Mengyuan Fan, Hao Li, Bin Wu, and Shan Xi Tian. "High-resolution anionic velocity map imaging apparatus for dissociative electron attachment dynamics study." Review of Scientific Instruments 95, no. 10 (2024). http://dx.doi.org/10.1063/5.0229674.

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Dissociative electron attachment (DEA) of a molecular target XY, e− + XY → XY− → X + Y−, is an important process in plasma, atmosphere, interstellar space, and ionizing radiation. DEA dynamics, i.e., the formation and fragmentation of an electron–molecule resonant complex, can be unveiled by measuring the product Y− with the velocity map imaging (VMI) technique. However, it is still challenging to achieve a high-resolution VMI measurement. Recently, we developed a high-resolution DEA apparatus that combined the VMI technique with a trochoidal electron monochromator. The energy spread (around 5

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Orozco-Flores, Alonso A., José A. Valadez-Lira, Karina E. Covarrubias-Cárdenas, et al. "In vitro antitumor, pro-inflammatory, and pro-coagulant activities of Megalopyge opercularis J.E. Smith hemolymph and spine venom." Scientific Reports 10, no. 1 (2020). http://dx.doi.org/10.1038/s41598-020-75231-1.

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Abstract Contact with stinging spines venom from several Lepidoptera larvae may result in skin lesions. In Mexico, envenomation outbreaks caused by Megalopyge opercularis were reported between 2015 and 2016. The aim of this study was to identify the venomous caterpillars in Nuevo Leon, Mexico and evaluate several biological activities of their hemolymph (HEV) and spine setae (SSV) venoms. M. opercularis was identified by cytochrome oxidase subunit (COI) designed primers. HEV and SSV extracts cytotoxic activity was assessed on the L5178Y-R lymphoma cell line. For apoptotic cells number and apop

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Argenziano, Mariana, jiajia yang, Mariana Burgos Angulo, and Thomas V. McDonald. "Abstract P309: Particulate Matter Increases Oxidative Stress And Shortens The Action Potential In IPS-derived Cardiomyocytes." Circulation Research 129, Suppl_1 (2021). http://dx.doi.org/10.1161/res.129.suppl_1.p309.

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Introduction: Air particulate matter (PM) represents one of the most critical environmental issues worldwide, causing more than 3 million deaths a year. In the US, hospital admissions due to heart failure (HF) increase by 0.8% for every 10 μg/m3 elevation in PM. However, the biological mechanisms behind the effects of PM on cardiovascular disease (CVD) remain poorly defined. Recent studies showed that PM 2.5 can translocate into the circulation, causing cumulative toxicity. With air pollution increasing due to human activity and the growing prevalence of HF, there is a critical need to underst

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sprotocols. "Modified paired end rapid library preparation protocol for 454 GS Junior 8 kb library preparation using Covaris g-tubes and BluePippin electrophoresis." December 31, 2014. https://doi.org/10.5281/zenodo.13648.

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Authors: Janet Hill, Bonnie Chaban, Jennifer Town, Matthew Links & Tim Dumonceaux ### Abstract This protocol describes an alternative approach to performing Roche’s Paired End Rapid Library Preparation Method for 8 kb span libraries. This method uses the Corvaris g-tube for DNA fragmentation, eliminating the need for a HydroShear apparatus, and a Sage Science BluePippin electrophoresis platform to size select the 8 kb fragments, eliminating the need for agarose gel electrophoresis and sample recovery using a Whatman Elutrap device. These two modifications allow the protocol to be completed

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