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The laccase producing fungus HC1 was isolated from a sample collected in the Bolivian Amazon region. Analysis of 5.8S and 28S rDNA, and internal transcribed spacer 1 and 2 sequences revealed that isolate HC1 belongs to genus Galerina. High production of laccase was achieved in basal salt medium supplemented with 30 g L-1 glucose, 10 g L-1 yeast extract and 0.01 g L-1 copper sulphate. The enzyme pr

One of the most effective methods for obtaining bulk ultrafine-grained materials is severe plastic deformation that is typically done using equal channel angular pressing. In this work we describe and analyze a new method for obtaining severe plastic deformations proposed by the first author. The method is based on direct extrusion and was called "twist extrusion" The main idea of the method is to

The stability of the Nystrom method for the Muskhelishvili equation on piecewise smooth simple contours Gamma is studied. It is shown that in the space L-2 the method is stable if and only if certain operators A tau(j) from an algebra of Toeplitz operators are invertible. The operators A tau(j) depend on the parameters of the equation considered, on the opening angles theta(j) of the corner points

Galiellalactone (GL) is a fungal metabolite that presents antitumor activities on prostate cancer in vitro and in vivo. In this study we show that GL induced cell cycle arrest in G2/M phase, caspase-dependent apoptosis and also affected the microtubule organization and migration ability in DU145 cells. GL did not induce double strand DNA break but activated the ATR and ATM-mediated DNA damage resp

We consider several simple combinatorial problems and discuss different ways to express them using polynomial equations and try to describe the Gröbner basis of the corresponding ideals. The main instruments are complete symmetric polynomials that help to express different conditions in rather compact way.

The stability of the Nyström method for the Sherman-Lauricella equation on contours with corner points $c_j$, $j=0,1,...,m$ relies on the invertibility of certain operators $A_{c_j}$ belonging to an algebra of Toeplitz operators. The operators $A_{c_j}$ do not depend on the shape of the contour, but on the opening angle $\theta_j$ of the corresponding corner $c_j$ and on parameters of the approxim

This article studies a hitherto unexplored dimension of the Chinese Civil War: the disparity between modern military technology and the conceptual and logistical capacities of the two warring sides. The author argues that the advanced weaponry, received by the Nationalists from their ally, the United States, but often captured on the battlefield by the Chinese Communist Party (CCP) forces, proved

The content of the globular domains G1, G2 and G3 on the core protein of high-density (A1D1) aggrecan isolated from newborn and mature bovine cartilage and from cultures of bovine chondrocytes was examined. Quantitation based on the 220 nm absorbance of tryptic marker peptides from each domain isolated by reversed-phase HPLC showed that while the content of G1 and G2 was essentially the same for a

This study examines how energy policy is framed in official documents adopted by the Baltic Assembly between 2013 and 2023. Using qualitative content analysis and securitisation theory, the study analyses 22 documents, resolutions and joint statements adopted by the Baltic Assembly, to trace how energy framing evolved in response to geopolitical developments, particularly Russia’s annexation of C

A theoretical and experimental study of the gas phase and liquid acetic acid based on resonant inelastic x-ray scattering (RIXS) spectroscopy is presented. We combine and compare different levels of theory for an isolated molecule for a comprehensive analysis, including electronic and vibrational degrees of freedom. The excitation energy scan over the oxygen K-edge absorption reveals nuclear dynam

IT = Invited Talk (20min + 5 min questions)CT = Contributed Talk (12 min + 3 min questions)The poster exhibition will take place outside the auditorium. Note that posters are limited to a width of 70 cm! Wednesday 2 OctoberLocation:  LUX auditorium12:00-13:30Registration13:30-13:35Welcome by LOC13:35-13:45Introduction from National committee for astronomy13:45-13:55Introduction from Swedish Astron

https://www.lundobservatory.lu.se/astronomdagarna-2024/conference-programme - 2026-05-09

Research engineer Contact details Email: santi [dot] roca_fabrega [at] fysik [dot] lu [dot] seOrganisation Astrophysics Room number: A429 Service point: 14 WebpageSanti Roca Fabregas profile in Lund University research portalOther affiliations Researcher Astrophysics Member of Strategic Research Area eSSENCE: The e-Science CollaborationMain research interests and summary of my research career:Rese

https://www.astro.lu.se/santi-roca-fabrega - 2026-05-09

This study is conducted with the help of 58 students in our Social Sciences departement examined the relationship between student valuations of academic outcomes and the perceived likelihood of these within the framework of Expectancy Theory. Furthermore, students current motivation was gauged using a SIMS test developed in accordance to Self- determination theory. The above mentioned tests were p