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An extensive investigation of the multilamellar vesicles (La*), lamellar (La), and multiply connected sponge (L3) phase formed in surfactant systems is presented in this thesis. These membrane structures were studied using surfactant systems containing poly(oxyethylene) alkyl ethers, n-CnH2n+1(OCH2CH2) mOH, commonly abbreviated as CnEm. This class of nonionic surfactants, often viewed as short AB

This chapter does not deal with any practical aspects of light measurement, only with theoretical concepts. The following concepts are explained: energy fluence, energy fluence rate, photon fluence, photon fluence rate, radiance and mol, as well as the following superfluous or obsolete terms and synonyms: actinic flux, space irradiance, scalar irradiance, spherical irradiance, vectorial irradiance

The tool life model formulated by Bertil Colding is limited to the use of a specified tool life criterion. The Colding equation describes the relationship between tool life, cutting speed and the equivalent chip thickness. The Colding equation is based on five constants which have unique values for each selected value of the tool life criterion. This paper investigates how these Colding constants

Desalting technologies and fresh water production has been developed over the years, including primarily thermal and membrane processes. Five different types of desalination technology were studied and compared for long-term of use namely, thermal processes include multistage flash evaporation (MSF), multiple effect evaporation (ME), and vapor compression (VC) and membrane processes contain revers

This thesis focuses on the possibilities to reduce fouling by 1.Modifying the stainless steel surface. For this purpose, surfaces modified with state-of-the-art material science techniques, such as SiF3+ and MoS22+ ion implantation, Diamond-like Carbon (DLC) sputtering, DLC, DLC-Si-O and SiOx Plasma Enhanced Chemical Vapour Deposition (PECVD), autocatalytic Ni-P-PTFE and silica coating, have been

Popular Abstract in Swedish När en kärlskada uppstår måste skadan repareras innan alltför mycket blod hinner lämna blodbanan. Kärlet självt kan dra ihop sig till viss del för att minska blodflödet. Vid kärlskadan exponeras strukturer som normalt inte skall ha kontakt med blodet, en sådan struktur är t.ex. ämnet kollagen. Till kollagenet binds blodplättar (trombocyter) som tillfälligt täpper till sThe investigations presented in this thesis have evaluated different strategies to prevent thrombosis in an experimental model of deep arterial injury in rats. Unfractionated heparin (UFH) is often used to prevent thrombosis in microvascular surgery and in other vascular interventions, but a major drawback of UFH is increased bleeding. In the first paper the low-molecular-weight heparin (LMWH) da

Popular Abstract in Swedish Bakgrund. Det enteriska nervsystemet (ENS) — mag-tarmkanalens eget nervsystem betraktades tidigare i stor utsträckning enbart som en passiv omkopplingscentral inom det parasympatiska nervsystemet. Forskningsresultat från det senaste decenniet har emellertid gett oss ett helt nytt synsätt. ENS ― ibland refererat till som ‘The second brain’ ― uppvisar trots tillhörighet tThe thesis deals with plasticity in terms of neurotransmitter expression and survival of neurons in the adult enteric nervous system (ENS). Several motility disorders have been suggested to originate in developmental defects, neurodegeneration, or insufficient innervation by the ENS. Normal distribution of the interstitial cells of Cajal (ICC), found in close relationship to enteric neurons, is al

Abstract is not available

Kort populärhistorisk översikt över ett antal lundastudenter som deltagit i Olympiska spel.

Popular Abstract in Swedish För ett halvsekel sedan publicerade den amerikanske barnläkaren Wessel en numera klassisk beskrivning av det skrikande kolikbarnet och dess omgivning, bekymrade och pressade föräldrar. Orsakerna till spädbarnskolik är fortfarande till stor del okända, och åsikterna om förebyggande åtgärder och behandling varierar avsevärt. Prognosen brukar beskrivas som god, men mycket AIM: To study infantile colic in terms of occurrence, risk factors in pregnancy, distress patterns, caregiving practices, and outcome. STUDY DESIGNS: Paper I: Population study, 376 mothers and newborn infants, diaries or telephone interviews. Paper II: 116 colic and 119 control cases, telephone interviews, and diaries. Papers III-IV: Population study, 1099 mother-infant dyads, pregnancy inquiries

INTERNATIONAL trade has become one of the pillars of the global economic system; an overlap between climate change policies and the multi-lateral trading system administered by the World Trade Organization (WTO) therefore seems inevitable. International trade affects climate change as it potentially increases economic activity that may in turn lead to increased greenhouse gas emissions. Conversely