Search results for "Color"
showing 10 items of 2721 documents
Exploration of jet substructure using iterative declustering in pp and Pb–Pb collisions at LHC energies
2020
The ALICE collaboration at the CERN LHC reports novel measurements of jet substructure in pp collisions at $\sqrt{s}$= 7 TeV and central Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 2.76 TeV. Jet substructure of track-based jets is explored via iterative declustering and grooming techniques. We present the measurement of the momentum sharing of two-prong substructure exposed via grooming, the $z_{\rm{g}}$, and its dependence on the opening angle, in both pp and Pb-Pb collisions. We also present the first measurement of the distribution of the number of branches obtained in the iterative declustering of the jet, which is interpreted as the number of its hard splittings. In Pb-Pb collisions, we…
The prognostic role of tumor budding and tumor-stroma ratio in pulmonary metastasis of colorectal carcinoma
2023
Objective To evaluate the prognostic value of tumor budding and tumor-stroma ratio (TSR) in resected pulmonary metastases of colorectal carcinoma (CRC). Methods In total, 106 pulmonary metastasectomies were performed to 74 patients in two study hospitals during 2000–2020. All relevant clinical data were retrospectively collected. Tumor budding based on the International Tumor Budding Consensus Conference recommendations and TSR in the first resected pulmonary metastases and primary tumors were evaluated from diagnostic hematoxylin-eosin-stained histopathological slides. Results 60 patients (85.7%) had low tumor budding (≤5 buds/field) and 10 patients (14.3%) had high tumor budding (>5 buds/…
Sociolinguistic upsets and people of color in social media performances
2022
Abstract Particularly since the refugee “reception crisis” in 2015, Finland has started transforming into a more diverse and multicultural society. These societal changes have also been accompanied by sociolinguistic change, as well as language ideological debates and tensions, often manifesting in explicitly racist and xenophobic bursts of upset. In this article, our focus is on social media as a space where such societal and sociolinguistic upsets are articulated and re-worked. Drawing on recent sociolinguistic and discourse analytic work on transformative and critical popular cultural practices in social media, and studies on rap and belonging, we discuss how, in a mediatized society suc…
Freeze-out radii extracted from three-pion cumulants in pp, p–Pb and Pb–Pb collisions at the LHC
2014
In high-energy collisions, the spatio-temporal size of the particle production region can be measured using the Bose-Einstein correlations of identical bosons at low relative momentum. The source radii are typically extracted using two-pion correlations, and characterize the system at the last stage of interaction, called kinetic freeze-out. In low-multiplicity collisions, unlike in high-multiplicity collisions, two-pion correlations are substantially altered by background correlations, e.g. mini-jets. Such correlations can be suppressed using three-pion cumulant correlations. We present the first measurements of the size of the system at freeze-out extracted from three-pion cumulant correl…
Postoperatīvas aknu mazspējas prognostisko faktoru vērtēšana pēc aknu rezekcijām pie kolorektālā vēža metastāzēm
2016
Ievads. Kolorektālais vēzis ir agresīvs onkoloģisks process, pusei no pacientiem ar kolorektālo vēzi atklāj arī metastātisko slimību, un tā kā aknas ir pirmais orgāns uz metastāžu izplātīšanas ceļa, biežāk novēro kolorektālā vēža metastazēšanas aknās. Joprojām, aknu metastāžu ārstēšanas „zeltā” standarts ir aknu rezekcijas, pēc kā var attīstīties, tā saucama, postoperatīva aknu mazspēja, kas bieži asociējas ar postopertīvas aknu mazspējas prognostīskiem faktoriem. Pētījuma mērķis. Noteikt postoperatīvas aknu mazspējas prognostiskus faktorus, kam ir lielāka aknu mazspējas ietekme. Materiāli un metodes. Retrospektīvs pētījums tika veikts Latvijas Onkoloģijas centrā. Pētījuma tika iekļauti 88 …
Saslimstība ar kuņģa un kolorektālo vēzi Latvijā un vēža slimnieku uzskaites sistēmas ticamības un kvalitātes analīze
2013
Promocijas darba anotācija Saslimstība ar kuņģa un kolorektālo vēzi Latvijā un vēža slimnieku uzskaites sistēmas ticamības un kvalitātes analīze Promocijas darbā ir veikta saslimstības ar kuņģa un kolorektālo vēzi Latvijā analīze un vēža slimnieku uzskaites sistēmas kvalitātes noteikšana. Pētījumā tika analizēta 1980.-2010.gadā reģistrā iesniegtā informācija par pacientiem, kuri slimo ar onkoloģiskām slimībām, iesniegto datu apjoms un to kvalitāte, datu atbilstība statistisko aprēķinu un epidemioloģisko pētījumu veikšanai, un notikušo pārmaiņu ietekme uz pacientu uzskaiti. Iegūtie epidemioloģiskie rādītāji tika salīdzināti ar starptautiskās publikācijās un datubāzēs pieejamo informāciju. Pa…
Colorectal cancer incidences in Lynch syndrome: a comparison of results from the prospective lynch syndrome database and the international mismatch r…
2022
Abstract Objective To compare colorectal cancer (CRC) incidences in carriers of pathogenic variants of the MMR genes in the PLSD and IMRC cohorts, of which only the former included mandatory colonoscopy surveillance for all participants. Methods CRC incidences were calculated in an intervention group comprising a cohort of confirmed carriers of pathogenic or likely pathogenic variants in mismatch repair genes (path_MMR) followed prospectively by the Prospective Lynch Syndrome Database (PLSD). All had colonoscopy surveillance, with polypectomy when polyps were identified. Comparison was made with a retrospective cohort reported by the International Mismatch Repair Consortium (IMRC). This com…
Survival by colon cancer stage and screening interval in Lynch syndrome:a prospective Lynch syndrome database report
2019
Abstract Background We previously reported that in pathogenic mismatch repair (path_MMR) variant carriers, the incidence of colorectal cancer (CRC) was not reduced when colonoscopy was undertaken more frequently than once every 3 years, and that CRC stage and interval since last colonoscopy were not correlated. Methods The Prospective Lynch Syndrome Database (PLSD) that records outcomes of surveillance was examined to determine survival after colon cancer in relation to the time since previous colonoscopy and pathological stage. Only path_MMR variants scored by the InSiGHT variant database as class 4 or 5 (clinically actionable) were included in the analysis. Results Ninety-nine path_MMR ca…
HIGH QUALITY TEXTURE MAPPING PROCESS AIMED AT THE OPTIMIZATION OF 3D STRUCTURED LIGHT MODELS
2019
Abstract. This article presents the evaluation of a pipeline to develop a high-quality texture mapping implementation which makes it possible to carry out a semantic high-quality 3D textured model. Due to geometric errors such as camera parameters or limited image resolution or varying environmental parameters, the calculation of a surface texture from 2D images could present several color errors. And, sometimes, it needs adjustments to the RGB or lightness information on a defined part of the texture. The texture mapping procedure is composed of mesh parameterization, mesh partitioning, mesh segmentation unwraps, UV map and projection of island, UV layout optimization, mesh packing and mes…
ESTIMATION OF OCEANIC PARTICULATE ORGANIC CARBON WITH MACHINE LEARNING
2020
Understanding and quantifying ocean carbon sinks of the planet is of paramount relevance in the current scenario of global change. Particulate organic carbon (POC) is a key biogeochemical parameter that helps us characterize export processes of the ocean. Ocean color observations enable the estimation of bio-optical proxies of POC (i.e. particulate backscattering coefficient, bbp) in the surface layer of the ocean quasi-synoptically. In parallel, the Argo program distributes vertical profiles of the physical properties with a global coverage and a high spatio-temporal resolution. Merging satellite ocean color and Argo data using a neural networkbased method has already shown strong potentia…