Search results for "Jump"

Numerical methods for pricing options under jump-diffusion processes

2013

Mobilā lietojumprogrammatūra veselības aprūpes iestādēm

2018

Kvalifikācijas darbā ir izstrādāta Android lietotne pacientu aprūpes pārvaldībai medicīnas iestādēs. Tā paredzēta 3 lietotāju grupām. Pirmā lietotāju grupa ir sistēmas administatori, kuriem būs iespēja pievienot un pārvaldīt visus sistēmas lietotājus. Ārstiem būs iespēja ērti un pārskatāmi sekot līdzi savu pacientu kustībām un veselības stāvoklim atveseļošanās laikā. Trešā lietotāju grupa ir pacienti. Lietotnes daļa, kas paredzēta pacienta ierīcei komunicē ar kustību sensoru, kas piestiprināts pie pacienta, iegūstot datus par tā kustībām. Lietotne nodrošina iespēju sekot līdzi pozīcijas maiņām, sūtot ārstam datus par veiktajām kustībām. Izstrādātās sistēmas mērķis ir atvieglot pacientu uztu…

VALUTAZIONE DELLA PRESTAZIONE DI SALTO VERTICALE IN SOGGETTI SEDENTARI, GIOCATORI DI PALLAVOLO E DI PALLACANESTRO

2011

La prestazione di salto verticale risulta essere uno degli elementi caratterizzanti il gioco della pallavolo e della pallacanestro. Tuttavia, poco è noto circa gli effetti dei loro modelli prestativi sulla capacità di salto verticale in giovani atlete. Lo scopo di questo lavoro, è stato, pertanto, quello di valutare, in soggetti sedentari e giocatori di pallavolo e pallacanestro di sesso femminile, il tempo di volo e l’altezza di salto durante l’esecuzione dello squat jump (SJ) e del counter-movement jump (CMJ). Dai risultati ottenuti il modello prestativo appare essere un fattore condizionante la prestazione di salto verticale nei soggetti allenati. E in particolare, i gesti tecnici della …

Cognition, metacognition and the patient perspective : new ways to evaluate and rehabilitate schizophrenia patients in forensic psychiatric care

2016

This research focused on factors associated with schizophrenia as well as on the feasibility and effectiveness of group metacognitive training (MCT) in schizophrenia patients with a history of violence in a high-security forensic hospital setting. One of the aims was to scrutinize reasoning ability in regards to jumping to conclusions (JTC) cognitive bias and the expression of cognitive insight (insight into one’s own thinking), a metacognitive ability. A second aim was to examine the associations of these factors with each other and with insight into illness and delusions. Moreover, the patients’ health-related quality of life (HRQOL) was explored. A further objective was to study the pote…

Ski jumping takeoff in a wind tunnel with skis.

2011

The effect of skis on the force–time characteristics of the simulated ski jumping takeoff was examined in a wind tunnel. Takeoff forces were recorded with a force plate installed under the tunnel floor. Signals from the front and rear parts of the force plate were collected separately to examine the anteroposterior balance of the jumpers during the takeoff. Two ski jumpers performed simulated takeoffs, first without skis in nonwind conditions and in various wind conditions. Thereafter, the same experiments were repeated with skis. The jumpers were able to perform very natural takeoff actions (similar to the actual takeoff) with skis in wind tunnel. According to the subjective feeling of the…

Žestu atpazīšana

2019

Redzes balstītu cilvēka žestu atpazīšana ir problēma, kura sevī iekļauj kadru virknes klasi- ficēšanu un noteiktā žesta atrašanu. Žestu atpazīšanai ir vairāki pielietojumi tādās jomās kā video novērošanā, video apstrādē, cilvēka - datora mijiedarbībā un citās. Darbā tiek izskatīti tagadējie sasniegumi žestu atpazīšanā, pētītas pieejamās datu kopas un izveidotas jaunas datu kopas uz UTD-MHAD [9] uzņemtiem videoklipiem. Veicot darbu, tiek padziļināti apskatītas pozu iegū- šanas metodes un esošās tehnoloģijas. Visvairāk no pozu atpazīšanas rīkiem darbā tiek apskatīta Posenet bibliotēka, kura darbojas tīmekļa pārlūkprogrammā. Tiek izv…

Vertikaalihypyn korkeuden arviointi 3D-kiihtyvyysanturilla ja lajinomaisen kuormituksen vaikutukset hyppyyn

2016

Sensoreihin perustuvat menetelmät ovat yleistyneet urheilutestauksessa viime vuosina. Tarkoituksena oli selvittää hyppääjän kenkään kiinnitettävään 3D-kiihtyvyysanturiin perustuvan menetelmän validiteettia vertikaalihypyn korkeuden arvioinnissa. Voimalevyn lentoaikamenetelmää käytettiin kiihtyvyysanturimenetelmän validiteettianalyysissä ja lajikohtaisten kuormitusasetelman vertikaalihypyt arvioitiin kiihtyvyysanturimenetelmällä. Hyppysarjojen korkeimmat hypyt arvioitiin lisäksi voimalevyn lähtönopeusmenetelmällä. Kiihtyvyysanturimenetelmässä käytettiin urheilijan kenkään kiinnitettävää The Stride Sensor Bluetooth® Smart (Polar Electro Oy, Kempele, Suomi) -sensoria. Hyppytestit suoritettiin …

Transcranial Alternating Current Stimulation (tACS) Does Not Affect Sports People’s Explosive Power: A Pilot Study

2021

Purpose: This study is aimed to preliminary investigate whether transcranial alternating current stimulation (tACS) could affect explosive power considering genetic background in sport subjects.Methods: Seventeen healthy sports volunteers with at least 3 years of sports activities participated in the experiment. After 2 weeks of familiarization performed without any stimulation, each participant received either 50 Hz-tACS or sham-tACS. Before and after stimulation, subjects performed the following tests: (1) the squat jump with the hands on the hips (SJ); (2) countermovement jump with the hands on the hips (CMJ); (3) countermovement jump with arm swing (CMJ-AS); (4) 15-s Bosco’s test; (5) s…

Reduced Order Models for Pricing European and American Options under Stochastic Volatility and Jump-Diffusion Models

2017

Abstract European options can be priced by solving parabolic partial(-integro) differential equations under stochastic volatility and jump-diffusion models like the Heston, Merton, and Bates models. American option prices can be obtained by solving linear complementary problems (LCPs) with the same operators. A finite difference discretization leads to a so-called full order model (FOM). Reduced order models (ROMs) are derived employing proper orthogonal decomposition (POD). The early exercise constraint of American options is enforced by a penalty on subset of grid points. The presented numerical experiments demonstrate that pricing with ROMs can be orders of magnitude faster within a give…

Reduced Order Models for Pricing American Options under Stochastic Volatility and Jump-diffusion Models

2016

American options can be priced by solving linear complementary problems (LCPs) with parabolic partial(-integro) differential operators under stochastic volatility and jump-diffusion models like Heston, Merton, and Bates models. These operators are discretized using finite difference methods leading to a so-called full order model (FOM). Here reduced order models (ROMs) are derived employing proper orthogonal decomposition (POD) and non negative matrix factorization (NNMF) in order to make pricing much faster within a given model parameter variation range. The numerical experiments demonstrate orders of magnitude faster pricing with ROMs. peerReviewed