Selaus nimekkeen mukaan kokoelmassa 1 Luonnontieteet
Viitteet 215-234 / 272
-
Some advances in mathematical models for preference relations
TUCS Dissertations : 136 (Turku Centre for Computer Science (TUCS), 10.06.2011)Preference relations, and their modeling, have played a crucial role in both social sciences and applied mathematics. A special category of preference relations is represented by cardinal preference relations, which are ... -
Some defects in two-dimensional spin-1/2 Heisenberg antiferromagnets: a numerical study of magnetic effects
(Åbo Akademi - Åbo Akademi University, 28.05.2010) -
Spatial and temporal variation in fish populations and assemblages in coastal waters of the northern Baltic Proper
(Åbo Akademi - Åbo Akademi University, 12.06.2015)The distribution and traits of fish are of interest both ecologically and socio-economically. In this thesis, phenotypic and structural variation in fish populations and assemblages was studied on multiple spatial and ... -
Spatial control of angiogenesis by engineered patterns of Notch ligands
(Åbo Akademi - Åbo Akademi University, 04.10.2022)Spatial control of angiogenesis by engineered patterns of Notch In tissue engineering and regenerative medicine, proper vascularization of engineered tissues is imperative, as diffusion of nutrients, oxygen and waste is ... -
Spatial distributions of phytoplankton in rock pools : metacommunities to molecules
(Åbo Akademi - Åbo Akademi University, 28.04.2017)Ecological studies on how populations and communities assemble and function traditionally focussed on the effects of local environmental conditions and species interactions. Still, no species, the consequences of its actions ... -
Spatial modeling techniques for mapping and characterization of acid sulfate soils
(Åbo Akademi - Åbo Akademi University, 08.04.2015)Acid sulfate (a.s.) soils constitute a major environmental issue. Severe ecological damage results from the considerable amounts of acidity and metals leached by these soils in the recipient watercourses. As even small hot ... -
Specificity Determining Features at the Interface of Biomolecular Complexes as Regulators of Biological Functions
(Åbo Akademi - Åbo Akademi University, 13.01.2023)Amino acid residues at the biomolecular interface play essential roles in many biological and cellular processes; relevant to this thesis, protein-protein interactions regulate signaling pathways and enzymatic activity, ... -
Sphingosine 1-phosphate receptor 2 and the trpc1 ion channel as regulators of human thyroid cancer cell migration and proliferation
(Åbo Akademi - Åbo Akademi University, 22.09.2017)Thyroid cancer is the most common endocrine cancer and currently there is no effective treatment available against the most aggressive and highly invasive forms of thyroid cancer. Sphingosine 1-phosphate (S1P) is a bioactive ... -
Sphingosine-1-phosphate-evoked invasion of follicular thyroid cancer cells : evidence for the involvement of HIF-I?, MMP2 and MMP9
(Åbo Akademi - Åbo Akademi University, 11.09.2015)Sphingolipids are widely expressed molecules, which traditionally were considered to have majorly structural properties. Nowadays, however, they are implicated in a wide range of different biological processes. The bioactive ... -
Statistical analysis of survey-based event history data with application to modeling of unemployment duration
Tutkimuksia (Tilastokeskus, Verkkojulkaisu) : 260 (Tilastokeskus - Statistikcentralen - Statistics Finland, 11.11.2013)Longitudinal surveys are increasingly used to collect event history data on person-specific processes such as transitions between labour market states. Surveybased event history data pose a number of challenges for statistical ... -
Stop bugging me! : diversity in appearance of warning coloration
(Åbo Akademi - Åbo Akademi University, 18.10.2013)In nature, many animals use body coloration to communicate with each other. For example, colorations can be used as signals between individuals of the same species, but also to recognise individuals of other species, and ... -
Stress management : multilayer regulation of the heat shock response
(Åbo Akademi - Åbo Akademi University, 21.04.2017)Protein-damaging stresses, such as exposure to elevated temperature, alcohol, and heavy metals and microbial infections, increase the amount of misfolded proteins in cells, which may lead to formation of toxic protein ... -
Strong Coulomb Coupling in Graphene : Microscopic theory of a many-body ground state and its excitations
(Åbo Akademi - Åbo Akademi University, 16.11.2018) -
Structural characterization of avidins with novel binding properties
(Åbo Akademi - Åbo Akademi University, 14.09.2018)Avidin (Avd) is a protein first discovered in chicken egg white, and later in other birds, reptiles, amphibians and lancelet. Apart from these eukaryoticspecies, Avd is also identified in few fungal and in many bacterial ... -
Structural studies and in vivo characterisation of Oct4:PORE and Oct4/Sox2:UTF1 complexes
(Åbo Akademi - Åbo Akademi University, 03.06.2014)- -
Structure and properties of soda-type lignin from a modern biorefinery process
(Åbo Akademi - Åbo Akademi University, 27.05.2022)Due to the increasing concerns regarding the use of crude oil for fuel and chemical production, considerable efforts have been made to find renewable and sustainable alternatives. Lignocellulosic biomass is the most abundant ... -
Structure in stress management : Keratins in intestinal stress protection
(Åbo Akademi - Åbo Akademi University, 16.12.2016)Intermediate filaments (IFs), a major constituent of the cellular cytoskeleton, contribute mainly to the mechanical stability of the cell. Simple epithelial keratins (SEKs) are IF proteins expressed in the single-layered ... -
Structure learning of context-specific graphical models
(Åbo Akademi - Åbo Akademi University, 30.06.2016)Abstract The ultimate problem considered in this thesis is modeling a high-dimensional joint distribution over a set of discrete variables. For this purpose, we consider classes of context-specific graphical models and ... -
Structure-related magnetic fabric studies : implications for deformed and undeformed Precambrian rocks
(Åbo Akademi - Åbo Akademi University, 01.11.2013)The aim of this thesis research was to gain a better understanding of the emplacement of rapakivi granite intrusions, as well as the emplacement of gold-bearing hydrothermal fluids in structurally controlled mineralizations. ... -
Studies on Ceramide/Colipid Interactions in Complex Bilayers
(Åbo Akademi - Åbo Akademi University, 01.12.2017)Ceramide belongs to an important class of sphingolipids and it constitutes the hydrophobic backbone of all complex sphingolipids. Ceramide plays an important role in different biological processes such as cell signaling, ...