Search results

Filter

Filetype

Your search for "*" yielded 534163 hits

Rank-dependent hoarding effort in willow tits (Parus montanus): a test of theoretical predictions

Many birds and mammals store energy as hoarded food supplies. A supply of stored food is beneficial during periods when food is scarce, but building up and managing such a supply also entails costs. The optimal number of caches will be reached when the net benefit is at its maximum. If dominants can steal more stored food from subordinates than the other way around, the optimum will differ between

Temperament, character, and self-esteem in relation to occupational performance in individuals with schizophrenia

Occupational therapy researchers have tried to clarify the links between occupation and statelike characteristics, such as people's experienced health, disability, and quality of life. However, to fully examine the spectrum of potential influences on occupation, trait-like features should also be investigated. This study focused on personality and self-related factors, in terms of temperament, cha

Nested convolutional codes and their application to woven codes

Nested convolutional codes are a set of convolutional codes that is derived from a given generator matrix. The structural properties of nested convolutional codes and nested generator matrices are studied. A method to construct the set of all minimal (rational) generator matrices of a given convolutional code is presented. As an example, two different sets of nested convolutional codes are derived

Hydrolysis of return sludge for production of easily biodegradable carbon: effect of pre-treatment, sludge age and temperature

Return sludge from two Swedish and two Danish wastewater treatment plants were hydrolysed in laboratory reactors. Treatment plants with/without pre-sedimentation and with/without nitrification were represented. Soluble organic matter was produced from all types of sludge, but the yield was to a large extent dependent on what type of sludge was hydrolysed. Activated sludge from wastewater treatment

Aspects on implementation of coronary heart disease prevention in clinical practice

Prevention of first time disease or recurrence of coronary heart disease (CHD) is a major task for the health service. Guidelines regarding CHD prevention have been issued but studies have shown that treatment goals are inadequately met in clinical practice and there is urgent need for improved methods of implementation of guidelines. There is also a need for better risk stratification tools in or

Sektioner, kulturlager, hus och tomter

Abstract in Undetermined Undersökningen utfördes i form av schaktningsövervakning av Riksantikvarieämbetet UV Syd. Schaktbredden uppgick som mest till 1m och djupet uppgick till 1,6 m. Vid undersökningen framkom 380 stratigrafiska enheter, mestadels dokumenterade i sektion, dessutom tillvaratogs 45 fyndposter framförallt bestående av djurben och keramik. Lämningarna kunde delas i tre olika bebyg

Condition, genotype-by-environment interaction, and correlational selection in lizard life-history morphs

We compared reproductive allocation and variation in condition and survivorship of two heritable female throat color morphs (orange and yellow) in a free-living population of side-blotched lizards (Uta stansburiana). Using path analysis and structural equation modeling, we investigated how variation in the social environment affected clutch size and egg mass and two condition traits (postlaying ma

Lamellar miscibility gap in a binary catanionic surfactant-water system

The coexistence of two lamellar liquid-crystalline phases in equilibrium for binary surfactant-water systems is a rare and still puzzling phenomenon. In the few binary systems where it has been demonstrated experimentally, the surfactant is invariably ionic and the miscibility gap is thought to stem from a subtle balance between attractive and repulsive interbilayer forces. In this paper, we repor

Fractions of barley spent grain as media for growth of probiotic bacteria

The application of the protein and polysaccharide fractions of barley spent grain as a basis of growth media for probiotic bacteria was studied. High values of biomass yield, cell viability, and organic acid production were observed in the variants of media containing the barley spent grain supplemented with lactose, ascorbic acid, yeast extract, and mineral salts. Cells of lactic acid bacteria an

Progression of human endometrial adenocarcinoma heterotransplanted into nude mice from hormone-sensitive to hormone resistant growth

We have used a human tumor nude mouse model involving heterotransplantation and serial passage of an estrogen receptor (ER) positive, progesterone receptor (PgR) negative human endometrial adenocarcinoma. The effects of estradiol treatment on tumor growth, ER activation and PgR induction were investigated two and four years after heterotransplantation. In Experiment I, two years after initial hete

Catalytic behaviour of M1, M2, and M1/M2 physical mixtures of the Mo-V-Nb-Te-oxide system in propane and propene ammoxidation

Essentially pure orthorhombic M1 and pseudo-hexagonal M2 phases were prepared using the precursor method. Consistent with literature the M1 phase was shown to be effective for propane ammoxidation to acrylonitrile while the M2 phase was essentially inert for propane activation. Both phases convert propene efficiently to acrylonitrile. Both phases show a significant selectivity dependence on the am

A Grin without a Cat 1 : 'Adversus Iudaeos' Texts in the Literature of Medieval Russia (988–1504)

This study, which is the first and main part of a two-volume work, is concerned with the history and philology of original and translated works Adversus Iudaeos circulating among the Eastern Slavs from the baptism of Rus' c.988 till the early 16th century. Excluded is the literature of Lithuanian Ruthenia from the 14th century onwards. On the material of 11–15th-century MSS the dissemination of th