Search results for "ROV"
showing 10 items of 5770 documents
"Halu palvella on onnistumisen edellytys!" : asiakaspalvelualan oppikirjojen vuorovaikutusta käsittelevän materiaalin tarkastelua
2001
"Ne kaikki tekkee minut onnelliseksi, että ne on siellä" : läheissuhteet lasten arjen kokemuksena
2012
Lasten läheissuhteissa on tapahtunut monia muutoksia, joiden merkityksiä lasten omasta näkökulmasta on kuitenkin tutkittu vähän. Tässä tutkimuksessa lasten läheissuhteiden tarkastelun teoreettinen perusta on lapsuuden sosiologiassa. Lapsille annettiin mahdollisuus määritellä oma perheensä ja kuvailla läheissuhteisiin, erityisesti perhesuhteisiin, liittyviä ulottuvuuksia. Tutkimuksen tavoitteena oli selvittää, miten lapset määrittelevät ja kuvailevat läheissuhteitaan, miten arjen vuorovaikutus ja tunteet näkyvät lasten perhesuhteissa, ja millaisina lasten perhesuhteet näyttäytyvät lasten toimijuuden ja osallisuuden näkökulmasta. Tutkimuksessa oli mukana 14 iältään 11–12-vuotiasta lasta, jois…
Tieteellinen kirjasto ja tiedeviestintä
2015
The role of adolescents' temperament in their positive and negative emotions as well as in psychophysiological reactions during achievement situations
2019
Abstract This study examined the role of adolescents' (n = 190) temperament in their emotional reactions in achievement situations. Adolescents rated their temperament (i.e., surgency/extraversion, negative affectivity, effortful control) and completed achievement tasks in Grade 6. They also reported their emotions before and during challenging and non-challenging tasks. In addition, adolescents' autonomic nervous system reactions (i.e., skin conductance levels) were recorded. The results showed that high effortful control was related to higher levels of positive emotions independent of the degree of task difficulty. Low negative affectivity and high effortful control were related to lower …
Skin Immunomodulation during Regeneration: Emerging New Targets
2021
Adipose-Derived Stem Cells (ADSC) are present within the hypodermis and are also expected to play a pivotal role in wound healing, immunomodulation, and rejuvenation activities. They orchestrate, through their exosome, the mechanisms associated to cell differentiation, proliferation, and cell migration by upregulating genes implicated in different functions including skin barrier, immunomodulation, cell proliferation, and epidermal regeneration. ADSCs directly interact with their microenvironment and specifically the immune cells, including macrophages and T and B cells, resulting in differential inflammatory and anti-inflammatory mechanisms impacting, in return, ADSCs microenvironment and …
Comparison of Machine Learning Methods in Stochastic Skin Optical Model Inversion
2020
In this study, we compare six different machine learning methods in the inversion of a stochastic model for light propagation in layered media, and use the inverse models to estimate four parameters of the skin from the simulated data: melanin concentration, hemoglobin volume fraction, and thicknesses of epidermis and dermis. The aim of this study is to determine the best methods for stochastic model inversion in order to improve current methods in skin related cancer diagnostics and in the future develop a non-invasive way to measure the physical parameters of the skin based partially on the results of the study. Of the compared methods, which are convolutional neural network, multi-layer …
Kollaboratiivisen verkko-oppimisen tukeminen skripteillä
2009
Alleviating Class Imbalance Problem in Automatic Sleep Stage Classification
2022
For real-world automatic sleep-stage classification tasks, various existing deep learning-based models are biased toward the majority with a high proportion. Because of the unique sleep structure, most of the current polysomnography (PSG) datasets suffer an inherent class imbalance problem (CIP), in which the number of each sleep stage is severely unequal. In this study, we first define the class imbalance factor (CIF) to describe the level of CIP quantitatively. Afterward, we propose two balancing methods to alleviate this problem from the dataset quantity and the relationship between the class distribution and the applied model, respectively. The first one is to employ the data augmentati…
Partially disarticulated new Miocene burrower bug (Hemiptera: Heteroptera: Cydnidae) from Cerová (Slovakia) documents occasional preservation of terr…
2015
The state of preservation of the bug Sehirus carpathiensis J.A. Lis, Vršanský & Schlögl, sp. n. (Hemiptera: Heteroptera: Cydnidae) from the Lakšárska Nová Ves Formation at Cerová (Slovakia) supports extremely rapid sinking and burial in upper bathyal Early Miocene sediments. The specimen originated from land at most a few kilometers away, but transport via a river can be excluded as the head and wings are still attached. Its most likely source based on fossil flora and the habitat of several living representatives of the genus is a riparian habitat in an adjacent area of land. Phylogenetically the new species is closely related to both Oligocene and living representatives of the genus, thus…