Waisda?: video labeling game

The Waisda? video labeling game is a crowsourcing tool to collect user-generated metadata for video clips. It follows the paradigm of games-with-a-purpose, where two or more users play against each other by entering tags that describe the content of the video. Players score points by entering the same tags as one of the other players. As a result each video that is played in the game is annotated with tags that are anchored to a time point in the video. Waisda? has been deployed in two projects with videos from Dutch broadcasters. With the open source version of Waisda? crowdsourcing of video annotation becomes available for any online video collection

Kokemuksia Oman muotoinen koti -hankkeesta nuorten silmin

Opinnäytetyön tilaaja on Helsingin kaupungin nuorisoasiainkeskuksen Oman muotoinen koti -hanke. Hanke on aloitettu 2015 ja se tarjoaa nuorille eri asumiskokeilujen avulla ratkaisua haastaviin asumistilanteisiin Helsingissä. Oman muotoinen koti -hankkeessa nuoret muuttivat 2017 vuoden alussa asumaan Kannelmäkeen. Asunnon lisäksi nuorille avautui mahdollisuus tehdä töitä 20 tuntia kuukaudessa yhdessä mietittyjen tehtävien parissa. Opinnäytetyön idea oli seurata neljän nuoren alkuvaihetta Oman muotoinen koti -hankkeessa. Opinnäytetyöni tavoite oli keskittyä nuorten kokemusten taltiointiin hankkeen edetessä, mistä saatu tieto auttaisi hankkeen kehittämisessä tilaajaa. Sain tilaajalta vapaat kädet opinnäytetyön toteuttamiseen. Valitsin nuorten kokemusten taltioimiseen teemahaastattelun menetelmän. Haastateltavien keski-ikä oli 20 vuotta, joista osa oli maahanmuuttajataustaisia ja osa kantasuomalaisia. Kaikki haastateltavat olivat erilaisia, tein haastatteluun kysymysrungon, mutta annoin tilaa haastattelussa nuorille kertoa valitsemasta aiheesta enemmän. Äänitin haastattelut ja litteroin ne. Haastattelun teemat vaihtelivat haastateltavan kanssa. Vaikka kysymykset olivat samat, tunsi osa nuorista tarvetta puhua enemmän toisesta teemasta. Tein haastattelut hankkeen alkuvaiheessa, joten haastattelujen tulokset puhuvat vain hankkeen alkuvaiheen tunnelmista. Opinnäytetyön teoreettisessa viitekehyksessä käsittelen asunnottomuuden lisäksi nuorten työllisyyttä. Pohdin mikä motivoi nuoria työllistymiseen ja mitkä keinot auttavat nuoria löytämään sopivaa työtä ja mitkä asiat voivat vaikuttaa nuorten työllistymiseen. Aineiston analyysiosiossa avaan nuorten ajatuksia hankkeesta ja työnteosta. Yhdistän teoreettista viitekehystä omaan pohdintaan. Oman muotoinen koti hankkeen alkuvaiheen aineiston analyysin perusteella, hankkeelle on kova tarve ja sitä olisi hyvä laajentaa isommaksi eri puolille pääkaupunkiseutua. Hanke tukee nuorten hankalaa asumistilannetta ja työllistymistä alati muuttuvassa työelämässä.The thesis focuses on City of Helsinki’s youth Departments Home That Fits Project. The project started at the beginning of 2015 and its objective is to provide solution for the housing crisis among the youth population in Helsinki. Home That Fits project’s youth moved to shared apartment in Kannelmäki at the beginning of 2017. Apart from housing the youth were provided with opportunity to work 20 hours a month in a agreed contract between all the partners involved. The thesis goal was to follow four young people in the project’s early stage. The main focus was to understand on how the project can be develop through the experiences of the young participants in the Home That Fits project. From the young people’s experiences I did choose with the cooperation of the parties involved a particular themes that we could base our questions on. The interviewee’s average age was early 20’s. All the participants shared their experiences differently. The interview’s theme changed from time to time although the questions stayed the same. Some of the youth felt the need to talk more about other subject than the agreed themes. The interviews were conducted at the early stages of the project. Therefore the results are based on that. The Thesis theory part deals with the youth's employment: What motivates young people to seek employment , what are the mechanisms that have been created to help the youth find the right work and the issues that can affect youth employment. The findings shows that there is a certain need for Home That Fits project in the Helsinki area of Kannelmäki and it could expand to other parts of Helsinki metropolitan area

Eye–hand coordination during manual object transport with the affected and less affected hand in adolescents with hemiparetic cerebral palsy

In the present study we investigated eye–hand coordination in adolescents with hemiparetic cerebral palsy (CP) and neurologically healthy controls. Using an object prehension and transport task, we addressed two hypotheses, motivated by the question whether early brain damage and the ensuing limitations of motor activity lead to general and/or effector-specific effects in visuomotor control of manual actions. We hypothesized that individuals with hemiparetic CP would more closely visually monitor actions with their affected hand, compared to both their less affected hand and to control participants without a sensorimotor impairment. A second, more speculative hypothesis was that, in relation to previously established deficits in prospective action control in individuals with hemiparetic CP, gaze patterns might be less anticipatory in general, also during actions performed with the less affected hand. Analysis of the gaze and hand movement data revealed the increased visual monitoring of participants with CP when using their affected hand at the beginning as well as during object transport. In contrast, no general deficit in anticipatory gaze control in the participants with hemiparetic CP could be observed. Collectively, these findings are the first to directly show that individuals with hemiparetic CP adapt eye–hand coordination to the specific constraints of the moving limb, presumably to compensate for sensorimotor deficits

Body mass index and extent of MRI-detected inflammation: opposite effects in rheumatoid arthritis versus other arthritides and asymptomatic persons

Imaging- and therapeutic targets in neoplastic and musculoskeletal inflammatory diseas

Socioeconomic inequalities in patient-reported outcome measures of Dutch primary hip and knee arthroplasty patients for osteoarthritis

Objective:To study socio-economic inequalities in patient-reported outcomes in primary hip and knee arthroplasty (THA/TKA) patients for osteoarthritis, using two analytical techniques. Methods: We obtained data from 44,732 THA and 30,756 TKA patients with preoperative and 12-month follow-up PROMs between 2014 and 2020 from the Dutch Arthroplasty Registry. A deprivation indicator based on neighborhood income, unemployment rate, and education level was linked and categorized into quintiles. The primary outcome measures were the EQ-5D-3L index and Oxford Hip/Knee Score (OHS/OKS) preoperative, at 12-month follow-up, and the calculated change score between these measurements. We contrasted the most and least deprived quintiles using multivariable linear regression, adjusting for patient characteristics. Concurrently, we calculated concentration indices as a non-arbitrary tool to quantify inequalities. Results: Compared to the least deprived, the most deprived THA patients had poorer preoperative (EQ-5D −0.03 (95%CI −0.02, -0.04), OHS −1.26 (−0.99, −1.52)) and 12-month follow-up health (EQ-5D −0.02 (−0.01, −0.02), OHS −0.42 (−0.19, −0.65)), yet higher mean change (EQ-5D 0.02 (0.01, 0.03), OHS 0.84 (0.52, 1.16)). The most deprived TKA patients had similar results. The higher mean change among the deprived resulted from lower preoperative health in this group (confounding). After accounting for this, the most deprived patients had a lower mean change. The concentration indices showed similar inequality effects and provided information on the magnitude of inequalities over the entire socio-economic range. Conclusion: The most deprived THA and TKA patients have worse preoperative health, which persisted after surgery. The concentration indices allow comparison of inequalities across different outcomes (e.g., revision risk).</p

The Depression Initiative. Description of a collaborative care model for depression and of the factors influencing its implementation in the primary care setting in the Netherlands

BACKGROUND: In the Depression Initiative, a promising collaborative care model for depression that was developed in the US was adapted for implementation in the Netherlands. AIM: Description of a collaborative care model for major depressive disorder (MDD) and of the factors influencing its implementation in the primary care setting in the Netherlands. DATA SOURCES: Data collected during the preparation phase of the CC:DIP trial of the Depression Initiative, literature, policy documents, information sheets from professional associations. RESULTS: Factors facilitating the implementation of the collaborative care model are continuous supervision of the care managers by the consultant psychiatrist and the trainers, a supportive web-based tracking system and the new reimbursement system that allows for introduction of a mental health care-practice nurse (MHC-PN) in the general practices and coverage of the treatment costs. Impeding factors might be the relatively high percentage of solo-primary care practices, the small percentage of professionals that are located in the same building, unfamiliarity with the concept of collaboration as required for collaborative care, the reimbursement system that demands regular negotiations between each health care provider and the insurance companies and the reluctance general practitioners might feel to expand their responsibility for their depressed patients. CONCLUSION: Implementation of the collaborative care model in the Netherlands requires extensive training and supervision on micro level, facilitation of reimbursement on meso- and macro level and structural effort to change the treatment culture for chronic mental disorders in the primary care settin

Reading your emotions in my physiology? Reliable emotion interpretations in absence of a robust physiological resonance

Affective states are expressed in an individual’s physical appearance, ranging from facial expressions and body postures, to indicators of physiological arousal (e.g., a blush). Confirming the claimed communicative function of these markers, humans are capable of distinguishing between a variety of discrete emotion displays. In an attempt to explain the underlying mechanism, characteristic bodily changes within the observer, including physiological arousal and mimicry, have been suggested to facilitate the interpretation of an expression. The current study aims to create a holistic picture of emotion perception by (1) using three different sources of emotional information (prototypical facial expressions, bodily expressions, and subtle facial cues) and (2) measuring changes in multiple physiological signals (facial electromyography, skin conductance level, skin temperature, and pupil size). While participants clearly discriminated between perceived emotional expressions, there was no overall 1–1 correspondence with their physiological responses. Some specific but robust effects were observed. Angry facial expressions were consistently responded to with a peak in skin conductance level. Furthermore, sad body expressions were associated with a drop in skin temperature. In addition to being the best recognized expression, viewing happy faces elicited congruent facial muscle responses, which supports the potential role of embodied simulation in emotion recognition. Lastly, tears were not only rated as highly emotional intense but also evoked a peak in skin conductance level in the observer. The absence of distinct physiological responses to other expressions could be explained by the lacking functionality of affect sharing in a non-interactive experimental context. Consequentially, emotional alignment in body and mind might especially take place in real social situations, which should be considered in future research.NWO016.VIDI.185.036Action Contro

Investigation of Performance and Cavitation Treatment in a Kaplan Hydro Turbine

Cavitation is a phenomenon that occurs in various turbomachinery applications causing drawbacks on the. Some of these downsides are damaging the components of the system, generating noise and vibration, and loss of the turbine efficiency over time. Thus, it is imperative to address issue of cavitation to increase the life span of the equipment in addition to improve the system performance. This thesis introduces a method used to mitigate the cavitation phenomenon in a 3-inch Kaplan hydro turbine via injecting air at the leading edge of the rotor blades. The study is based on modeling the turbine using Computational Fluid Dynamics (CFD) software as well as carrying out experimental tests. The simulations were conducted at different air injection pressures over a spectrum of rotational speeds using Large Eddy Simulation (LES) for turbulence and volume of fluid for multiphase interactions: water, vapor water and air. The cavitation behavior was observed first without aeration, then followed by air injection simulations to investigate the effect of aeration. Each case was simulated for 12 cycles at rotational speeds of 1000, 2000, 3000, 4000, and 5000 rpm. The Vapor Volume Fraction (VVF) and the output mechanical power were monitored throughout the simulations. The data acquired from the simulations were compared to the experimental results for verifications. It was observed that the cavitation was mitigated in both the computer simulations and the experiment testing reaching up to 49.7% as an average reduction, while the output power was reduced by 6.6%