Sökning: "orthogonal partial least squares"

Visar resultat 11 - 15 av 16 avhandlingar innehållade orden orthogonal partial least squares.

1. 11. Evaluation of a Miniaturized Rotating Disk Apparatus for In Vitro Dissolution Rate Measurements in Aqueous Media : Correlation of In Vitro Dissolution Rate with Apparent Solubility

   Författare :Anita M. Persson; Curt Pettersson; Anders Sokolowski; Anders Karlsson; Alex Avdeef; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; analytical methods; HPLC high-performance liquid chromatography ; miniaturization; in vitro dissolution rate; apparent solubility; physicochemical properties; dissolution media; correlation study; chemometrics; Pharmaceutical chemistry; Farmaceutisk kemi; Analytical Pharmaceutical Chemistry; Analytisk farmaceutisk kemi;

   Sammanfattning : The general aim of this thesis was to evaluate a newly designed and constructed miniaturized rotating disk apparatus for in vitro dissolution rate measurements of different drug substances from all of the classes in the Biopharmaceutical Classification System (BCS). The new equipment is based on a low volume flow-through cell of Plexiglas, a gold plated magnetic bar and a special designed press. LÄS MER

3. 12. Thermal formation and chlorination of dioxins and dioxin-like compounds

   Författare :Stina Jansson; Stellan Marklund; Mats Tysklind; Jochen F. Müller; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dioxin; dioxin-like compounds; isomer distribution pattern; homologue profile; injection; O2PLS; PCDD; PCDF; PCN; PCBz; PCPh; MSW combustion; formation; chlorination; flue gas; quench profiles; Environmental chemistry; Miljökemi;

   Sammanfattning : This thesis contributes to an increased understanding of the formation of dioxins and dioxin-like compounds in combustion processes. Although emissions to air from waste incineration facilities have been greatly reduced by the use of efficient air pollution control measures, the resulting residues (ashes and filters) are highly toxic and are classified as hazardous waste. LÄS MER

4. 13. Computerized tools : a substitute or a supplement when diagnosing Alzheimer's disease?

   Författare :Carlos Alberto Aguilar Palomeque; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Alzheimer’s disease (AD) is the most common form of dementia in the elderly characterized by difficulties in memory, disturbances in language, changes in behavior, and impairments in daily life activities. By the time cognitive impairment manifests, substantial synaptic and neuronal degeneration has already occurred. LÄS MER

5. 14. The relationship between fly ash chemistry and the thermal formation of polychlorinated pollutants during waste incineration

   Författare :Duong Ngoc Chau Phan; Stellan Marklund; Bogdan Dlugogorski; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Incinerations; dioxins; PCDD Fs; PCBs; PCNs; flue gas; fly ash; sampling; particle characterization; XPS; XRD; SEM EDX; formation; chlorination; PCA; OPLS; OPLS-DA;

   Sammanfattning : The thermal formation of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), biphenyls (PCBs), and naphthalenes (PCNs) is a major problem in waste incineration. Ideally, rather than relying on air cleaning systems and treatment techniques, their formation should be minimized or, if possible eliminated. LÄS MER

7. 15. Caring for people and the planet : preschool children’s knowledge and practices of sustainability

   Författare :Farhana Borg; Monika Vinterek; T. Mikael Winberg; Arjen E.J. Wals; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; consumption; daycare center; economic sustainability; environmental education; environmental sustainability; guardians; kindergarten; parents; preschool; preschool director; recycling; sharing resources; social sustainability; sustainable development; teacher; young children; pedagogiskt arbete; educational work; Utbildning och lärande;

   Sammanfattning : Children across the globe today are continuously being exposed to and affected by various kinds of real-world complexities and challenges; however, research on their knowledge and practices in terms of sustainability is limited, in particular with regards to how preschool- and home-related factors are associated with their learning for sustainability. Since 1998, different types of eco-certification have been awarded by the Swedish National Agency for Education and Keep Sweden Tidy Foundation to promote education for sustainability (EfS) in all areas of education and learning. LÄS MER