Results 31 to 40 of about 528,302 (208)

Comparison of Umbilical Cord Mesenchymal Stem Cells and Fibroblasts as Donor Nuclei for Handmade Cloning in Sheep Using a Single-Cell Transcriptome

open access: yesAnimals
Oocytes are efficient at reprogramming terminally differentiated cells to a totipotent state. Nuclear transfer techniques can exploit this property to produce cloned animals. However, the overall efficiency is low.
Weijian Li   +7 more
doaj   +1 more source

Technical Challenges in the Derivation of Human Pluripotent Cells

open access: yesStem Cells International, 2011
It has long been discovered that human pluripotent cells could be isolated from the blastocyst state of embryos and called human embryonic stem cells (ESCs). These cells can be adapted and propagated indefinitely in culture in an undifferentiated manner
Parinya Noisa, Rangsun Parnpai
doaj   +1 more source

Mitochondrial transfer: Ethical legal and social implications in assisted reproduction

open access: yesSouth African Journal of Bioethics and Law, 2015
Diseases resulting from mutations in mitochondrial DNA (mtDNA) are inherited by all offspring through the maternal lineage. Multiple organs, which require high cellular energy production, are severely affected.
Alexandra Reznichenko   +2 more
doaj   +1 more source

Endeavors in the DualSPHysics code to evaluate heat transfer in nuclear systems [PDF]

open access: yesarXiv, 2021
This article condenses current endeavors and improvements in the expansion of applications of the DualSPHysics code to analyze heat transfer in a nuclear reactor core. This includes the essential conservation equations and certain physical considerations, particularly the thermal conductivity variable model, considering changes in the reference density
arxiv  

Robust techniques for polarization and detection of nuclear spin ensembles [PDF]

open access: yesPhys. Rev. B 96, 174436 (2017), 2017
Highly sensitive nuclear spin detection is crucial in many scientific areas including nuclear magnetic resonance spectroscopy (NMR), imaging (MRI) and quantum computing. The tiny thermal nuclear spin polarization represents a major obstacle towards this goal which may be overcome by Dynamic Nuclear Spin Polarization (DNP) methods. The latter often rely
arxiv   +1 more source

A Review of the Uses of Nuclear Radiation in Tobacco and Smoke Research

open access: yesContributions to Tobacco and Nicotine Research, 1990
In summary, nuclear radiation has been widely used to elucidate many aspects of the mechanisms of tobacco being converted to smoke. In addition, the mechanisms of smoke transfer, tobacco inorganic chemistry and smoke filtration have been clarified by ...
Jenkins RW
doaj   +1 more source

Heat Transfer in Cavities: Configurative Systematic Review

open access: yesEnergies, 2023
This study is a systematic review of research on heat transfer analysis in cavities and aims to provide a comprehensive understanding of flow and heat transfer performance in various kinds of cavities with or without the presence of fins, obstacles ...
Goutam Saha   +3 more
doaj   +1 more source

Synthesis, characterization and evaluation of transfection efficiency of dexamethasone conjugated poly(propyleneimine) nanocarriers for gene delivery#

open access: yesPharmaceutical Biology, 2018
Context: Polypropylenimine (PPI), a cationic dendrimer with defined structure and positive surface charge, is a potent non-viral vector. Dexamethasone (Dexa) conveys to the nucleus through interaction with its intracellular receptor.
Bizhan Malaekeh-Nikouei   +4 more
doaj   +1 more source

Nuclear Structure Studies of Neutron-Rich Nuclei : Astrophysical Implications [PDF]

open access: yes, 2017
It is proposed here to investigate three major properties of the nuclear force that influence the amplitude of shell gaps, the nuclear binding energies as well as the nuclear $\beta$-decay properties far from stability, that are all key ingredients for modeling the r-process nucleosynthesis.
arxiv   +1 more source

$γ$-ray Angular Distributions in Single Nucleon Transfer Reactions with Exotic Strontium Isotopes [PDF]

open access: yesarXiv, 2023
$\gamma$-ray angular distributions help assign spin and parity to excited energy levels in nuclei. The spectroscopy of $^{94,96}$Sr studied through the single neutron transfer reactions with $^{95}$Sr beam in inverse kinematics [$^{95}$Sr(d,p)$^{96}$Sr; $^{95}$Sr(d,t)$^{94}$Sr] revealed a rich nuclear structure with many excited states.
arxiv  

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