Search results for " Three Dimensional"

showing 6 items of 6 documents

Comparing Alternative Algorithms to Analyze the Beerkan Infiltration Experiment

2014

The increasing interest in the Beerkan Estimation of Soil Transfer parameters (BEST) procedure of soil hydraulic characterization justifies an assessment of alternative methods to analyze infiltration data. The BEST-slope and BEST-intercept algorithms allow estimation of soil sorptivity, S, and saturated soil hydraulic conductivity, Ks, using the transient part of the experimental infiltration curve and the slope and the intercept, respectively, of the linear portion of this curve. With reference to 401 runs performed in Sicily (Italy) and Burundi, this investigation showed that these two algorithms differed by the number of successful runs (positive S and Ks values), with BEST-intercept yi…

Infiltration (hydrology)Soil ScienceSoil scienceBEST Beerkan Estimation of Soil Transfer parameter3D three dimensionalGeologySoil Science Society of America Journal
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Optimal local control and tolerability of three-dimensional conformal radiation therapy in prostate cancer: A single institutional experience of dose…

2013

Aims To evaluate long-term late side effects, clinical and biochemical relapse in non-metastatic prostate cancer patients treated with dose escalation, from 74 to 78 Gy, by means of three dimensional conformal radiation therapy. Materials and Methods Clinical data of 125 patients with prostate cancer who underwent three-dimensional conformal radiation therapy were retrospectively evaluated. All patients were stratified, according to the NCCN classification, in low, intermediate and high risk, and all of them showed histologically proven adenocarcinoma stage T1–T3 with at least 2 years of follow-up. Late toxicity was analyzed using a modified Radiation Therapy Oncology Group toxicity scale. …

MaleCancer ResearchThree dimensional conformal radiation therapyUrinary BladderUrogenital SystemKaplan-Meier EstimateAdenocarcinomaDisease-Free SurvivalBiomarkers Tumor80 and overHumansLate toxicity; Local control; Prostate cancer; Radiation therapy; Three dimensional conformal radiation therapy; Adenocarcinoma; Aged; Aged 80 and over; Biomarkers Tumor; Disease-Free Survival; Gastrointestinal Tract; Humans; Italy; Kaplan-Meier Estimate; Male; Middle Aged; Neoplasm Staging; Prostate-Specific Antigen; Prostatic Neoplasms; Radiation Injuries; Radiotherapy Dosage; Radiotherapy Conformal; Rectum; Retrospective Studies; Urinary Bladder; Urogenital System; Medicine (all); Oncology; Cancer ResearchRadiation InjuriesAgedNeoplasm StagingRetrospective StudiesAged 80 and overProstate cancerTumorRadiotherapyConformalMedicine (all)RectumProstatic NeoplasmsRadiotherapy DosageGeneral MedicineMiddle AgedProstate-Specific AntigenRadiation therapyGastrointestinal TractItalyOncologyLocal controlRadiotherapy ConformalLate toxicityBiomarkers
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Medical Imaging Applications: Three Case Studies

2006

Microarray Image Analysis Three Dimensional segmentation of Computer Tomography data Breast Shape Analysis
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Canopy Architecture Appraisal by Fractal Dimension of 'Flordastar' Peach Trees Grafted onto Different Rootstocks

2007

The objective of this research was to evaluate the modification of canopy architecture of ''Flordastar'' peach (Prunus persica L. Batsch) grafted onto rootstocks with different vigour, by the use of fractal dimension (D). The hypothesis was that different vigour rootstocks are able to modify the complexity of the branching pattern and that this effect can be assessed by a geometric parameter such as the fractal dimension (D) of the 2D projection of tree branching structure. The observations were carried out in a four-year-old experimental orchard of cv. ''Flordastar'' peach trees grafted onto Ishtara, Barrier, GF677 and MrS 2/5 rootstocks. On digital pictures of leafless, dormant peach tree…

The objective of this research was to evaluate the modification of canopy architecture of ''Flordastar'' peach (Prunus persica L. Batsch) grafted onto rootstocks with different vigour by the use of fractal dimension (D). The hypothesis was that different vigour rootstocks are able to modify the complexity of the branching pattern and that this effect can be assessed by a geometric parameter such as the fractal dimension (D) of the 2D projection of tree branching structure. The observations were carried out in a four-year-old experimental orchard of cv. ''Flordastar'' peach trees grafted onto Ishtara Barrier GF677 and MrS 2/5 rootstocks. On digital pictures of leafless dormant peach trees the tree skeleton was manually depicted by an image analysis software to measure total length and angles of insertion of branches. Bitmaps of the skeleton were then subjected to a specific software (FDCALC) able to calculate D by the "box counting" method. To account for the error introduced by analyzing a three dimensional structure with its 2D projection measurements were done on two images per tree taken from two different viewing angles. Results are shown in relation to tree vigour of the scion/stock combination. Fractal dimension was related to the vigour ranking of the graft combinations tested. In particular vigorous scion/stock combinations showed the highest D.HorticultureCanopy architectureHorticultureRootstockFractal dimensionMathematics
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Multiplane two-dimensional versus real time three-dimensional transesophageal echocardiography in ischemic mitral regurgitation

2011

OBJECTIVES: Intraoperative three-dimensional (3D) transesophageal echocardiography (TEE) has been suggested to be a valuable technique for the evaluation of the mechanisms of ischemic mitral regurgitation (IMR). Studies comparing multiplane two-dimensional (2D) with 3D TEE reconstruction of the mitral valve using the new mitral valve quantification (MVQ) software are lacking. We undertook a prospective comparison between multiplane 2D and 3D TEE for the assessment of IMR. METHODS: We evaluated echocardiographically 45 patients with IMR who underwent mitral valve surgery in our institution. 2D and 3D TEE examinations followed by a 3D offline assessment of the mitral valve apparatus were perf…

echocardiography mitral three dimensional
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Development of an in vitro neuroblastoma 3D model and its application for sterigmatocystin-induced cytotoxicity testing

2021

Abstract Given the increasing importance of establishing better risk assessments for mycotoxins, novel in vitro tools for the evaluation of their toxicity are mandatory. In this study, an in vitro 3D spheroid model from SH-SY5Y cells, a human neuroblastoma cell line, was developed, optimized and characterized to test the cytotoxic effects caused by the mycotoxin sterigmatocystin (STE). STE induced a concentration- and time-dependent cell viability decrease in spheroids. Spheroids displayed cell disaggregation after STE exposure, increasing in a dose-dependent manner and over time. STE also induced apoptosis as confirmed by immunofluorescence staining and Western blot. Following the decrease…

endocrine systemCytotoxicitySterigmatocystinBlotting WesternCellFluorescent Antibody TechniqueToxicology3D cell culturechemistry.chemical_compoundNeuroblastomaCell MovementCell Line TumorSpheroids CellularMechanisms of actionToxicity TestsmedicineHumansCell Culture Techniques Three DimensionalViability assayCytotoxicityChemistryGeneral MedicineMycotoxins3D spheroidCytostasisCell biologymedicine.anatomical_structure3D spheroid; Cytotoxicity; Mechanisms of action; Neuroblastoma; SterigmatocystinCell cultureApoptosisComet AssayReactive Oxygen SpeciesFood ScienceSterigmatocystin
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