Search results for "ominaisuudet"

Characterization of lignin enforced tannin/furanic foams

2020

Worldwide, tons of lignin is produced annually in pulping plants and it is mainly considered as a waste material. Usually lignin is burned to produce energy for the pulping reactors. The production of value-added materials from renewable materials like lignin, has proved to be challenging. In this study, the effects of addition of three different types of lignin in the production of tannin/furanic foams is investigated. The foams were matured, first at 373 K and finally carbonized at 1073 K and the properties of them including mechanical strength, specific surface area and pore development are investigated before and after thermal treatment. According to the results, higher mechanical stren…

Factorial validity and internal consistency of the motivational climate in pysical education scale

2014

The aim of the study was to examine the construct validity and internal consistency of the Motivational Climate in Physical Education Scale (MCPES). A key element of the development process of the scale was establishing a theoretical framework that integrated the dimensions of task- and ego involving climates in conjunction with autonomy, and social relatedness supporting climates. These constructs were adopted from the self-determination and achievement goal theories. A sample of Finnish Grade 9 students, comprising 2,594 girls and 1,803 boys, completed the 18–item MCPES during one physical education class. The results of the study demonstrated that participants had highest mean in task-in…

Associations Between Reading Skills, Interest in Reading, and Teaching Practices in First Grade

2017

ABSTRACTThis study examined associations between classroom-level reading fluency, comprehension, interest in reading, and teaching practices. Participants were 466 children from 21 classrooms. Reading fluency and interest were assessed at the beginning and end of Grade 1, reading comprehension at the end of Grade 1. Teaching practices were observed with the Early Childhood Classroom Observation Measure (ECCOM). Teachers were more likely to use teacher-directed methods in classrooms where children had poorer initial reading fluency. In classrooms with mostly child-centered methods, children showed better reading fluency, comprehension, and higher interest, whereas in classrooms with predomin…

Age- and quality-dependent DNA methylation correlate with melanin-based coloration in a wild bird

2018

Abstract Secondary sexual trait expression can be influenced by fixed individual factors (such as genetic quality) as well as by dynamic factors (such as age and environmentally induced gene expression) that may be associated with variation in condition or quality. In particular, melanin‐based traits are known to relate to condition and there is a well‐characterized genetic pathway underpinning their expression. However, the mechanisms linking variable trait expression to genetic quality remain unclear. One plausible mechanism is that genetic quality could influence trait expression via differential methylation and differential gene expression. We therefore conducted a pilot study examining…

Voimantuotto-ominaisuudet pre- ja postpuberteetti-ikäisillä telinevoimistelijatytöillä

2005

Sonia Hicks. 2004. Voimantuotto-ominaisuudet pre- ja postpuberteetti-ikäisillätelinevoimistelijatytöillä. Liikuntabiologian laitos. Jyväskylän yliopisto. 57s.Naisten telinevoimistelu on kehittynyt hyvin fyysiseksi lajiksi, joka vaatiivoimistelijalta voimaa, tehoa, nopeutta ja liikkuvuutta. Voimistelijoiden voimantuottoominaisuuksiaon yleensä mitattu kenttätestein voimistelusalilla, mutta kenttätestienongelmana on alhainen reliabiliteetti ja validiteetti. Tutkimuksen tarkoituksena oliselvittää eritasoisten (A- ja B- maajoukkue) naistelinevoimistelijoiden voimantuottoominaisuuksienmahdollisia eroja laboratorio- ja kenttätestein pre- ja postpuberteettiikäisillänaistelinevoimistelijoilla. Yhtee…

Urheilijan temperamenttitestin psykometriset ominaisuudet

1997

Modeling the mechanical behavior of carbon nanostructures

2016

Low-dimensional nanostructures are expected to have vast number of applications in the future. Particularly large amount of research has been invested in the atomthick carbon membrane called graphene, which has become popular due to its unique electronic and mechanical properties. This thesis presents studies of the mechanical and electromechanical properties of several different types of graphene nanostructures. In addition, short detours are performed in order to study the elasticity of gold nanostructures and topology effects in graphene nanoribbons. The research is performed by using several different simulation methods. In simulations the system parameters and environment can be chosen…

Päiväkodin johtajan työnkuvan sekä taitojen ja ominaisuuksien tärkeys työyhteisön näkökulmasta

2004

Etätyössä koettuun työtyytyväisyyteen yhteydessä olevat tekijät : työn ominaisuudet ja työntekijän persoonallisuus

1998

Interaction between surface plasmon polaritons and molecules in strong coupling limit

2016

Miniaturization of optical elements and their integration to electronic circuits is limited by diffraction limit. It was realized that light being coupled to surface plasmons (SP) can overcome this limit. Employing also optically active molecules in combination with SPs can drive optical circuits to nm-scale and add functionalities. For efficient performance of plasmonic elements involving fluorescent dye molecules investigation of physics behind their interaction is of high priority. In this thesis interaction between surface plasmon polaritons (SPPs) and different dye molecules has been studied, especially within strong coupling limit, which brings in totally new physical properties in th…