Search results for "NODAL"
showing 10 items of 264 documents
Attēla fona nošķiršanas paņēmieni objektu izcelšanai
2016
Objektu atpazīšana un analīze ir fundamentāla problēma attēlu apstrādē. Attēlā esošo objektu analīze ir ikdienišķa procedūra mūsdienu attēlu analīzē un apstrādē. Objektu izcelšanas risinājumi ir svarīgi tālākā objektu analīzē un apstrādē, piemēram cilvēku, mašīnu un citu svarīgu objektu, kas satur informāciju izcelšanai attēlā. Bakalaura darbā „Attēla fona nošķiršanas paņēmieni objektu izcelšanai” tiek apskatīti esošie fona nošķiršanas paņēmieni. Šie paņēmieni tiek aprakstīti teorētiski un arī pārbaudīti praktiski uz dažādiem ieejas datiem. Tiek veikta šo metožu salīdzināšana pēc noteiktiem kritērijiem.
Approximation of pre-twisted Achilles sub-tendons with continuum beam elements
2022
Achilles sub-tendons are materially and geometrically challenging structures that can nearly undergo around 15% elongation from their pre-twisted initial states during physical activities. Sub-tendons' cross-sectional shapes are subject-specific, varying from simple to complicated. Therefore, the Achilles sub-tendons are often described by three-dimensional elements that lead to a remarkable number of degrees of freedom. On the other hand, the continuum-based beam elements in the framework of the absolute nodal coordinate formulation have already been shown to be a reliable and efficient replacement for the three-dimensional continuum elements in some special problems. So far, that element …
Diagnostik eines hochmalignen B-Zell-Lymphoms des Dünndarms mit der Kapselendoskopie
2003
Wireless capsule endoscopy is a new diagnostic procedure to detect diseases of the small bowel, in particular in patients with obscure gastrointestinal bleeding. We report on a 76-year-old patient who presented at our hospital with signs of gastrointestinal bleeding and hypochromic anaemia. Bidirectional endoscopy, push enteroscopy, angiography as well as small bowel barium enema rendered no pathologic findings. Wireless capsule endoscopy demonstrated a polypous space in the cantral area of the small bowel. Subsequent intraoperative endoscopy revealed a subtotal stenosing tumour of the upper jejunum which was resected. Based on the histology a high-grade B-Cell lymphoma was diagnosed. The p…
Mercaptopurine Treatment in an Adult Man with Orbital and Intracranial Rosai-Dorfman Disease.
2016
Background. Rosai-Dorfmann disease (RDD) is a rare, idiopathic non-Langerhans cell histiocytosis, affecting children and young adults, that commonly presents as painless, massive cervical lymphadenopathy with fever, weight loss, and polyclonal hypergammaglobulinemia. Cervical lymphadenopathy and extranodal involvement are the main presentations. On the contrary, ophthalmic involvement and localisation in the central nervous system are rare.Case Report. An old man was admitted to our hospital for first seizure. Brain imaging studies revealed on the left an extra-axial thickening of the dura mater with enhancement and perilesional oedema, infiltrating the sphenoorbital fissure and an isointen…
Farbduplexsonographische Messung der Lymphknotenperfusion: Ein Beitrag zur Diagnostik der zervikalen Metastasierung*
1993
The objective of this study was to find additional sonomorphological criteria for determining the status of enlarged lymph nodes. By using colour-coded duplex sonography the perfusion of 63 lymph nodes in the neck was analysed. The status was confirmed either histologically or clinically (29 metastases from squamous cell carcinomas and 34 acute or chronic inflammatory nodal diseases). A quantitative evaluation of the pulsatility measured in 51 lymph nodes by computing the Pourcelot-Ratio and the Mean Pulsatility Index yielded significant differences between the two groups. By definition of a limiting value of the Pourcelot-Ratio (0.75) for the prediction of benignity, the specificity and th…
Effect of Atrial Capture Beats on the Subsequent Cycle During Slow Common Atrioventricular Nodal Reentry Tachycardia
2013
Behavioral and hemodynamic effects of prefrontal anodal stimulation in healthy older adults: a simultaneous tDCS/fNIRS study
2019
THE EFFECTS OF GROWTH REGULATORS ON IN VITRO AXILLARY SHOOT PROLIFERATION AND ROOTING OF ERICA MULTIFLORA
2012
Multiple shoots were induced on nodal segments of a mature plant of Erica multiflora L. Axillary shoots produced on uncontaminated explants were excised, segmented, and recultured on the same medium. The effect of Anderson medium, augmented with different concentrations of 2iP either singly or in combination with NAA, as potential medium for shoot multiplication by nodal segments was investigated. In the following experiment equal molar concentrations of four cytokinins (2iP, kinetin, zeatin, and BA) were studied for ability to induce axillary shoot development from single node stem segments. The highest rate of axillary shoot proliferation was induced on Anderson medium supplemented with 1…
Akciju sabiedrības reorganizācija nodalīšanas ceļā - mazākuma akcionāru tiesību un interešu aizsardzība, normatīvā regulējuma efektivitāte un komercl…
2018
Kapitālsabiedrības sadalīšana tiek uzskatīta par īpaši riskantu reorganizācijas veidu sabiedrības mazākuma akcionāriem. Lai aizsargātu mazākuma akcionāru tiesības un intereses, ir radīts un Komerclikumā iestrādāts mazākuma akcionāru aizsardzības institūts, kas balstās uz trim galvenajiem mazākuma akcionāru tiesību aizsardzības pamatprincipiem - vienlīdzība, atklātums un informācijas pieejamība, tiesiskā aizsardzība jeb tiesību aizsardzības realizācijas līdzekļi. Lai gan minētie mazākuma akcionāru tiesību un interešu aizsardzības principi ir iestrādāti Komerclikuma normās, regulējums ne vienmēr ir uzskatāms par efektīvu un piemērotu arī praksē. Autore darbā izvirza mērķi noskaidrot, cik efek…
Solutions with sign information for nonlinear Robin problems with no growth restriction on reaction
2019
We consider a parametric nonlinear Robin problem driven by a nonhomogeneous differential operator. The reaction is a Carathéodory function which is only locally defined (that is, the hypotheses concern only its behaviour near zero). The conditions on the reaction are minimal. Using variational tools together with truncation, perturbation and comparison techniques and critical groups, we show that for all small values of the parameter λ > 0, the problem has at least three nontrivial smooth solutions, two of constant sign and the third nodal.