Search results for "fragmentation"
showing 10 items of 798 documents
DNA fragmentation index, pAKT and pERK1/2 in cumulus cells are related to oocyte competence in patients undergoing in vitro fertilization programme
2019
SummaryActivated pERK1/2 and pAKT are key players in supporting cell survival and proliferation pathways. Translocation of pERK1/2 into the nucleus, where it interacts with transcription factors and DNA itself, is instrumental in exerting an anti-apoptotic effect. In this study, pAKT levels, pERK1/2 nuclear localization and DNA fragmentation index (DFI) in cumulus cells of single cumulus–oocyte complexes of patients undergoing in vitro fertilization programmes were evaluated and correlated with the clinical outcome of the related embryos. For a positive clinical outcome of blastocyst development, pERK1/2 nuclear localization and DFI value had a significant inverse relationship, whereas the …
Hybrid nanocomposites with ultra-low filling content by nano-coating fragmentation
2021
In the current study, a new technique for the manufacturing of polymer nanocomposites (PNCs) with ultra-low filling content (<0.05 wt%) is presented. Specifically, this method has been validated through the production of polypropylene (PP) nanocomposites with Ag nanoparticles. The presented method first consisted in a metal nano-film deposition on PP pellet substrates by a physical vapor deposition (PVD) sputtering equipment. Subsequently, a percentage of the coated pellet was mixed to uncoated ones via an injection molding machine to produce the PNC in a single step. Different mixing percentages of coated PP pellet to the uncoated ones were studied. As a result, the fragmentation of the…
Mechanisms of cell death in canine parvovirus-infected cells provide intuitive insights to developing nanotools for medicine
2010
Jonna Nykky, Jenni E Tuusa, Sanna Kirjavainen, Matti Vuento, Leona GilbertNanoscience Center and Department of Biological and Environmental Science, University of Jyv&auml;skyl&auml;, FinlandAbstract: Viruses have great potential as nanotools in medicine for gene transfer, targeted gene delivery, and oncolytic cancer virotherapy. Here we have studied cell death mechanisms of canine parvovirus (CPV) to increase the knowledge on the CPV life cycle in order to facilitate the development of better parvovirus vectors. Morphological studies of CPV-infected Norden laboratory feline kidney (NLFK) cells and canine fibroma cells (A72) displayed characteristic apoptotic events. Apoptosis was f…
Mass measurements of As, Se, and Br nuclei, and their implication on the proton-neutron interaction strength toward the N=Z line
2021
Mass measurements of the $^{69}$As, $^{70,71}$Se and $^{71}$Br isotopes, produced via fragmentation of a $^{124}$Xe primary beam at the FRS at GSI, have been performed with the multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS) of the FRS Ion Catcher with an unprecedented mass resolving power of almost 1,000,000. For the $^{69}$As isotope, this is the first direct mass measurement. A mass uncertainty of 22 keV was achieved with only 10 events. For the $^{70}$Se isotope, a mass uncertainty of 2.6 keV was obtained, corresponding to a relative accuracy of $\delta$m/m = 4.0$\times 10^{-8}$, with less than 500 events. The masses of the $^{71}$Se and $^{71}$Br isotopes were measured…
La fragmentation de l'orthographe française : le cas de Twitter
2018
The enormous development of new communication technologies, especially the Internet, causes an unprecedented reversal in our lives sińce the discovery of printer. Apart from their impact on interpersonal relationships, new communication technologies have also modified our writing practices. It is evident that the French language used in computer-mediated communication digresses more and more from the developed formal speeches, in particular by its “fragmented” orthographic form which approaches its o rai form. Although this “fragmented” writing is scorned by many educated people, these orthographic variants represent, according to us, the true state of the French language as used by native …
$\Lambda_c^{\pm}$ production in pp collisions with a new fragmentation function
2020
Physical review / D D 101(11), 114021 (2020). doi:10.1103/PhysRevD.101.114021
Correlation among pAKT, pERK1/2 and DNA fragmentation index in human cumulus cells to determine oocyte competence
2018
The aim was to correlate specific biological aspects of cumulus cells isolated from individual cumulus-oocyte complexes (COCs) with the clinical outcome of the related embryos.
La fragmentation dans l'écriture durassienne : marges textuelles
2018
The work of Marguerite Duras draws on such concepts as rejection, loss, and transgression. A deviation from the current norms and rules of language and rhetoric is part of a wider reflection on the discourse of women in the public sphere. The issue of exclusion in Duras’s texts resonates particularly strongly in the context of ‘thresholds’ of paratext defined by Gerard Genette. Such analysis shows the coexistence of text and nontext in the creative process. The author avoids explicitness to underscore the specificity of her unfinished/broken writing. Particularly noteworthy is the fragmentation of the meta-narrative. Using decomposition, cross-genre, and silence, Duras makes the reader awar…
Sistema dei partiti, legislazione elettorale e disciplina dei gruppi parlamentari: è possibile governare la frammentazione politica in Italia?
2019
Fragmented party system in Italy: nightmare or advantage for democracy? by Laura Lorello In building the newly-established democracy, the Authors of the Italian Constitution attributed a fundamental role to political parties. Therefore, the Italian political system comprises numerous political parties, often small in size, which have to coalesce to form a government majority. The resulting fragmented party system in Italy is generally considered a negative characteristic. Historically, it has been very difficult to reduce the number of political parties. Many attempts were made to modify the electoral system, from proportional representation to majority rule during the last thirty years. Mo…
Study of very forward energy and its correlation with particle production at midrapidity in pp and p-Pb collisions at the LHC
2022
Journal of high energy physics 08(8), 86 (2022). doi:10.1007/JHEP08(2022)086