Search results for "MeaNS"

Simulated skiing as a measurement tool for performance in cross-country sit-skiing

2019

The International Paralympic Committee mandates the development of an evidence-based classification system, which requires a measure of performance. Performance in cross-country sit-skiing is mainly dependent on force generated during the poling phase and is enhanced by trunk flexion–extension movements. Since all sit-skiers have neuromuscular impairment, but different ability to control the trunk, this study aimed to verify if simulated action of poling on an adapted ergometer, together with a cluster analysis, could be used for grouping participants with different impairments according to their performance. On the ergometer, eight male and five female participants performed seven poling c…

A fully automatic 2D segmentation method for uterine fibroid in MRgFUS treatment evaluation

2015

PurposeMagnetic Resonance guided Focused UltraSound (MRgFUS) represents a non-invasive surgical approach that uses thermal ablation to treat uterine fibroids. After the MRgFUS treatment, an operator must manually segment the treated fibroid areas to evaluate the NonPerfused Volume (NPV). This manual approach is operator-dependent, introducing issues of result reproducibility, which could lead to errors in the subsequent follow-up phase. Moreover, manual segmentation is time-consuming, and can have a negative impact on the optimization of both machine-time and operator-time. MethodTo address these issues, in this paper a novel fully automatic method based on the unsupervised Fuzzy C-Means cl…

Clinical support in radiation therapy scenarios: MR brain tumor segmentation using an unsupervised fuzzy C-Means clustering technique

2016

NeXt for neuro-radiosurgery: A fully automatic approach for necrosis extraction in brain tumor MRI using an unsupervised machine learning technique

2017

Stereotactic neuro-radiosurgery is a well-established therapy for intracranial diseases, especially brain metastases and highly invasive cancers that are difficult to treat with conventional surgery or radiotherapy. Nowadays, magnetic resonance imaging (MRI) is the most used modality in radiation therapy for soft-tissue anatomical districts, allowing for an accurate gross tumor volume (GTV) segmentation. Investigating also necrotic material within the whole tumor has significant clinical value in treatment planning and cancer progression assessment. These pathological necrotic regions are generally characterized by hypoxia, which is implicated in several aspects of tumor development and gro…

Ikääntyvät ja työhyvinvointi : 45-64-vuotiaiden työssäjaksamiskokemuksia

2017

The aim of this study was to offer an additional point of view of the age political discourse on work endurance, initiated by Finland’s public administration in the early 2000s. The personal experiences of the staff of a multi-professional work community were exploited to find clues to occupational well-being and endurance at work. Seventeen employees aged 45—64 at the actual work community were chosen as data or material for study, i.e. to be interviewed. A phenomenological-hermeneutical approach was applied to shed light on how to create well-being at work. Personal experiences of work endurance were analyzed and interpreted along the guidelines of the stepwise method used in phenomenolog…

Laika apzīmējumi Homēra Odisejas valodā

2018

Bakalaura darba “Laika apzīmējumi Homēra Odisejas valodā” mērķis ir izpētīt laika apzīmējumu formu un funkcionējumu Homēra Odisejas valodā. Lai sasniegtu izvirzīto mērķi, bakalaura darba teorētiskajā daļā apskatīti gan mūsdienu zinātnieku pētījumu materiāli par Homēra eposu Odiseja, gan Aristoteļa teorētiskās atziņas par episko stilu. Apskatīta arī teorētiskā literatūra par vārda semantiku. Darba gaitā tika pētīta laika apzīmējumu nozīme eposa kontekstā. Pētījuma procesā atklāts, ka laika apzīmējumi palīdz saprast laiktelpu, kurā notiek darbība. Tāpat tie padara tekstu izteiksmīgu, jo atrodami arī, piemēram, metaforiski un formulveida laika apzīmējumi, un arī tādi, kas dažādos veidos apraks…

New Materialist Explorations into Language Education

2023

This open access book analyzes language education through a socio-material framework. The authors revisit their position as researchers by decentering themselves and humans in general from the main focus of research activities and giving way to the materialities that are agentive but often overlooked parts of our research contexts and processes. Through this critical posthumanist realism, they are able to engage in research that sees society as an ethical interrelationship between humans and the material world and explore the socio-materialities of language education from the perspectives of material agency, spatial and embodied materiality, and human and non-human assemblages. Each chapter…

Pārliecinošu valodas līdzekļu lietojums uzņēmumu misiju apgalvojumos

2019

Šajā bakalaura darbā tiek analizēti pārliecinošie valodas līdzekļi un to izmantošana uzņēmumu misiju apgalvojumos klientu uzmanības piesaistīšanai. Pētījuma mērķa sasniegšanai tika izmantotas dīvas metodes: atbilstošās literatūras izpēte un diskursa analīze. Pētījuma datu kopums sastāv no trīsdesmit naftas kompāniju misiju apgalvojumiem. Tika secināts, ka misiju apgalvojumos izmantotie pārliecinošie valodas izteiksmes līdzekļi ietekmē lasītāju piesaistot to uzmanību. Turklāt, pētījums atklāj, ka izvēlētajā korpusā visbiežāk izmantotie pārliecinošās valodas līdzekļi ir: īpašības vārds (26%), iekļaujošā valoda (19%), vietniekvārdi (18%), atkārtošanās (17%), aliterācija (12%).

Neverbālo komunikācijas līdzekļu lietojums britu un amerikāņu lietišķajās prezentācijās

2016

Bakalaura darbā tiek pētīts neverbālo komunikācijas līdzekļu lietojums britu un amerikāņu lietišķajās prezentācijās. Pētījuma mērķis ir analizēt un salīdzināt neverbālo līdzekļu lietojumu apkopotajās prezentācijās. Pētījuma metodes, kuras pielietotas pētījuma izstrādē, ietver ar pētījuma tematu saistītu teorētisko materiālu analīzi un gadījuma izpēti. Šajā darbā teorija tiek piemērota praksē, pētot neverbālās komunikācijas līdzekļus divās lietišķajās prezentācijās. Pētījuma rezultāti atklāj esošās līdzības un atšķirības, kuras pastāv starp britu un amerikāņu oratoriem, ņemot vērā kineksiku, okuleksiku, paralingvistiku un proksēmiku.

Improving Scalable K-Means++

2021

Two new initialization methods for K-means clustering are proposed. Both proposals are based on applying a divide-and-conquer approach for the K-means‖ type of an initialization strategy. The second proposal also uses multiple lower-dimensional subspaces produced by the random projection method for the initialization. The proposed methods are scalable and can be run in parallel, which make them suitable for initializing large-scale problems. In the experiments, comparison of the proposed methods to the K-means++ and K-means‖ methods is conducted using an extensive set of reference and synthetic large-scale datasets. Concerning the latter, a novel high-dimensional clustering data generation …