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Professor Kontaktinformation E-post: mattias [dot] ohlsson [at] mgeo [dot] lu [dot] se Telefon: +46 46 222 77 82Organisation Miljö- och geovetenskapliga institutionen (MGeo) Besöksadress: Geocentrum II, Sölvegatan 12, Lund Rumsnummer: 457 Hämtställe: 16 WebbplatsMattias Ohlssons profil i Lunds universitets forskningsportalAndra roller Avdelningsföreståndare Miljö- och geovetenskapliga institutione
https://www.cec.lu.se/sv/mattias-ohlsson - 2026-07-24
BACKGROUND: Proghrelin, produced by the ghrelin (A-like) cells of the gastric mucosa, gives rise to cleavage products, including desacyl ghrelin, acyl ghrelin and obestatin. The products are thought to be secreted concomitantly. In an earlier study we found acyl ghrelin and obestatin, but not desacyl ghrelin, to suppress the release of hormones from isolated islets of mouse and rat pancreas. RESUL
The gasification of biomass is a promising route to increase the share of renewable sources in the energy mix. Besides having an overall higher thermal efficiency than combustion, it also offers the possibility of producing gaseous and liquid biofuels that can be used in the transport sector. The use of biomass gasification for energy purposes can help lower the net emissions of greenhouse gases,
In this paper, the effect of polarization on the downlink achievable sum-rate of multi-user Cooperative Multi-Point (CoMP) systems is studied using synchronous multi-link channel measurements with two different antenna arrangements. In the first setup, four dual-polarized antenna patches with inter-patch distance varied from half wavelength to 8 m are considered at the base station (BS). In the se
The common conception of justice as reciprocity seemingly is inapplicable to relations between non-overlapping generations. This is a challenge also to John Rawls’s theory of justice as fairness. This text responds to this by way of reinterpreting and developing Rawls’s theory. First, by examining the original position as a model, some revisions of it are shown to be wanting. Second, by drawing on
The non-conventional wine and beer yeast Dekkera bruxellensis is of great interest for the food industry and academic research. This Crabtree-positive yeast is a good ethanol producer and can compete the baker´s yeast Saccharomyces cerevisiae, in ethanol and pH tolerance and could be an even better organism for the biofuel production from alternative carbon sources. D. bruxellensis is considered t
Reduction of trans-[Pt(CN)4 X2]2- (X = Cl or Br) as model compounds for antitumour-active platinum(IV) pro-drugs, to [Pt(CN)4]2- by L-methionine, MeSR, has been studied at 25 °C in the range 0 < pH < 12 (X = Cl) and 0 < pH < 6 (X = Br) by use of stopped-flow spectrophotometry. The stoichiometry is [Pt IV] : [MeSR] ≈ 1 : 1; the reaction products are methionine S-oxide and [Pt(CN)4]2- as identified
Islet dysfunction is central to the development and progression of type 2 diabetes (T2D). Epigenetic modifications are essential for establishing and maintaining cell identity and function in normal circumstances. Exposure to adverse environmental factors may alter the epigenome, and result in changes of gene expression and the resulting phenotype. The aim of this thesis was to analyze DNA methyla
Indonesia has a history of hundreds of years revolving around the racism against its 3% Chinese ethnic minority—who are also known as Tionghoa. This circumstance engenders the racial-social order that has been shaping the attitudes and behaviours of the Chinese, both individually and collectively, in social, cultural, and political realms. The Chinese have become self-controlled and self-regulated
Despite extensive efforts through various international initiatives to reduce global warming, it has been determined that human induced climate change is here, that the present scale of disruption of the climate is unprecedented and will continue. Increasing weather volatility can be expected, which will most likely increase exposure to weather related hazards, e.g. wildfires, flooding. The aim of
Most of field stars originate from dissolved star clusters. If the gas cloud is well mixed the stars in the cluster are expected to be chemically homogenous. Although the original kinematical information of a star may be lost under the Galactic dynamic evolution, the chemical signatures are preserved in the form of elemental abundances in individual low-mass stars. The present-day distribution of
Popular Abstract in English Technological devices in our society are used on a daily basis. The speed in processing jobs and the memory capacity are two key parameters used to set their prices. The information is encoded with a binary system physically implemented on semiconductor circuits, where the bit 1 corresponds to a finite voltage and the bit 0 to zero voltage. In order to increase the spThis thesis aims to contribute to the field of time controlled charge and energy transport in mesoscopic systems. In Chapter 1, Chapter 2 and Chapter 3 a short review of the scattering matrix theory is presented, including both charge and energy transport, useful to understand the mathematical landscape used in Papers I, II, III and IV. Chapter 3 briefly presents the thermoelectric properties of m
This paper explores the relationship between democratization and economic redistribution using case study analysis applied to Sweden and Brazil. We find that democratization is intimately connected to redistribution through the welfare state, but as an event in itself is neither a necessary nor a sufficient cause of redistributive reforms. Democratization is not strictly necessary, because in anti
Questions concerning children’s place in a worshipping community keeps reemerging in the Church of Sweden, as well as in other churches. Often ideals of inclusivity and children’s participation collide with ideals of a solemn, calm and “adult” liturgy. Children might simultaneously be seen as carriers of hope and a special proximity to God and as disturbers: they make noise and are “too young to uQuestions concerning children’s place in a worshipping community keeps reemerging in the Church of Sweden, as well as in other churches. Often ideals of inclusivity and children’s participation collide with ideals of a solemn, calm and “adult” liturgy. Children might simultaneously be seen as carriers of hope and a special proximity to God and as disturbers: they make noise and are “too young to u
