Search results for "LI-"
showing 10 items of 269 documents
Hepatocellular carcinoma (HCC) vs. non-HCC: accuracy and reliability of Liver Imaging Reporting and Data System v2018
2019
PURPOSE: The Liver Imaging Reporting and Data System (LI-RADS) was created to standardize the diagnostic criteria for hepatocellular carcinoma (HCC), and has undergone multiple revisions including a recent update in 2018 (v2018). The primary aim of this study was to determine the diagnostic performance and interrater reliability (IRR) of LI-RADS v2018 for distinguishing HCC from non-HCC primary hepatic malignancy in patients ‘at-risk’ for HCC. A secondary aim was to assess the impact of changes introduced in the v2018 diagnostic algorithm. METHODS: This retrospective study combined a 10-year experience of pathologically-proven primary liver malignancies from two large liver transplant cente…
Effect of Reynolds number on TiO2 nanosponges doped with Li+ cations
2018
[EN] Anatase TiO2 nanosponges have been synthesized by anodization of Ti, and Li+ cations have been inserted in these nanostructures. The influence of hydrodynamic conditions (Reynolds number, Re = 0 to Re = 600) during anodization has been studied. Li-Doped TiO2 nanosponges were characterized by field emission scanning electron microscopy (FE-SEM), Raman confocal microscopy, electrochemical impedance spectroscopy (EIS) and Mott¿Schottky analysis (M¿S). The photoelectrochemical performance and resistance to photocorrosion were also measured. Li¿TiO2 nanosponges proved to be better photocatalysts for water splitting than Li¿TiO2 nanotubes. Moreover, the photoelectrochemical behavior of the L…
Lectio praecursoria: Kieli-ideologiat Romanian Baanaatissa
2009
Väitöksenalkajaisesitelmä 13.6. 2009 nonPeerReviewed
High-performing Sn-Co nanowire electrodes as anodes for lithium-ion batteries
2012
Abstract The preparation of Sn 2 Co 3 nanowire arrays (NWs) electrogrown inside the channels of polycarbonate membranes and their characterization as anodes for Li-ion batteries both in half-cell vs. Li and in battery configuration are reported. The Sn 2 Co 3 NW electrodes tested by deep galvanostatic charge/discharge cycles in ethylene carbonate-dimethylcarbonate (1:1) – LiPF 6 1 M displayed 80% capacity retention after 200 cycles at C/2 and 30 °C, and a high charge and discharge rate capability at C-rate from C/3 (0.33 A/g) to 10C (10 A/g) at 30° and 10 °C. Electrodes with the highest alloy loading delivered up to 0.6 mAh cm −2 at C/2. The performance of these electrodes in battery config…
Toward Tin-Based High-Capacity Anode for Lithium-Ion Battery
2014
Electrochemical deposition of SnCo alloys inside the nanometric pores of commercial membranes is described. Composition, morphology and crystallographic structure of the synthesized nanostructured alloys are reported as well as the results of electrochemical tests carried out both in half-cell and in full battery configuration to investigate the performance of these SnCo alloys as anodes for lithium-ion batteries. Optimized depositions yielded nanostructured alloys that performed 200 deep galvanostatic cycles at C/2 and 30 °C with 80 % capacity retention and coulombic efficiency higher than 97 % after 40 cycles Moreover, charge-discharge rate capability tests showed the high performance of …
Modelling, simulation and characterization of Li-Ion battery cell
2019
The decarbonizing process of the transportation system and the spread of unplanned renewables energy source, such as photovoltaic and wind energies, brought the constant need of ever more efficient energy storage technologies. Among these technologies, batteries, particularly the li-ion chemistry, are widely used in automotive and energy storage applications. For an optimized management of the cell it is advisable to have models that can accurately describe cell behaviour. In this paper a battery model for performance simulation in automotive application is identified. The main shapes of battery cells with their own advantages and disadvantages are shown, and a roundup of the best available…
Informācija un sabiedrība: Informācijas un bibliotēku studiju nodaļas raksti : Nr.2
2011
Turpinājumizdevuma „Informācija un sabiedrība: Informācijas un bibliotēku studiju nodaļas raksti” otrajam numuram ir divas daļas. Pirmajā daļā „Nacionālā identitāte digitālā vidē” ir iekļauti raksti, kuros analizēti valsts pētījumu programmas „Nacionālā identitāte (valoda, Latvijas vēsture, kultūra un cilvēkdrošība)” projektā „Nacionālā identitāte un komunikācija” apakšprojektā „Nacionālā identitāte digitālā vidē” veikto pētījumu rezultāti. Otrajā daļā „Bibliotēku darba aspekti” ir raksti, kuru autori ir Latvijas Universitātes bibliotēkas darbinieki. Rakstos analizēti pētījumu rezultāti vairākās ar bibliotēkas darbu saistītās jomās: 1) bibliotēkas pakalpojumi, to transformācija ‘Tīmekļa 2.0…
Onopordo acauli-Verbascetum montani: nuevo nombre para los cardizales oroibéricos
2006
Se propone un nuevo nombre, Onopordo acauli-Verbascetum montani, que sustituye a “Onopordeto-Verbascetum gudaricum” Rivas Goday & Borja 1961, nombre ilegítimo a tenor del Código Internacional de Nomenclatura Fitosociológica (CINF). Se trata de un cardizal pionero, de desarrollo estival, propio de terrenos baldíos, bordes de caminos y antiguos campos de cultivo, de las áreas calcáreas más continentales y elevadas del Sistema Ibérico y territorios colindantes. Conocida hasta ahora del Macizo de Gúdar, se aportan inventarios de la comarca de Albarracín y Montes Universales. La nueva comunidad es caracterizada florística, ecológica, bioclimática y biogeográficamente, y además se discuten sus af…
Selective inhibition of HDAC6 regulates expression of the oncogenic driver EWSR1-FLI1 through the EWSR1 promoter in Ewing sarcoma
2021
Ewing sarcoma (EWS) is an aggressive bone and soft tissue tumor of children and young adults in which the principal driver is a fusion gene, EWSR1-FLI1. Although the essential role of EWSR1-FLI1 protein in the regulation of oncogenesis, survival, and tumor progression processes has been described in-depth, little is known about the regulation of chimeric fusion-gene expression. Here, we demonstrate that the active nuclear HDAC6 in EWS modulates the acetylation status of specificity protein 1 (SP1), consequently regulating the SP1/P300 activator complex binding to EWSR1 and EWSR1-FLI1 promoters. Selective inhibition of HDAC6 impairs binding of the activator complex SP1/P300, thereby inducing…
EWS/FLI-1 rearrangement in small round cell sarcomas of bone and soft tissue detected by reverse transcriptase polymerase chain reaction amplificatio…
1994
Recent cloning of the t(11;22) region has led to the detection of a number of sequences involved in the breakpoints by substituting a sequence which encodes a putative RNA binding domain for that of the DNA binding domain of the human homologue of murine FLI-1. Several tumours display consistent translocation at t(11;22) (q24;q12), a finding that suggests these fusion transcripts could be expressed and detected by reverse transcriptase polymerase chain reaction amplification. To date, only a small number of Ewing's sarcomas (Es) and peripheral neuroectodermal tumours (pPNET) of bone have been tested with this novel molecular biology approach. In this study, we confirmed the presence of the …