Buscador de Tesis y publicaciones académicas

Improving urban wastewaters using natural microbial communities in bench-scale reactors

Bertrans-Tubau, Lluís · Abril, Meritxell · Maestre, Alba · Ponsá, Sergio · y 4 más

Discharges from small urban wastewater facilities serving fewer than 10,000 population equivalents require improved effluent quality. Under the revised Urban Wastewater Treatment Directive (2024/3019), these facilities are not required to control nutrients, faecal contamination, or certain contaminants of emerging conc...

Synthesis and antimalarial activity of novel C30-aminated betulin derivatives

Christopher, Bérubé · Catherine, Bergeron · Dominic, Gagnon · Mathieu, Gagné-Boulet · y 5 más

A series of new C30-aminated lupane analogues was prepared from betulin in three straightforward steps and evaluated for inhibitory activity against Plasmodium falciparum. Taking advantage of the Meinwald rearrangement of the terminal C20/29 racemic epoxide in acidic conditions, reductive amination of the resulting ald...

Transcriptional circuits of the glioma microenvironment: FOSL2 as a master regulator of the pathological niche

Jia'ning Zhang · Chao Guan · Zechen Wang · Lizheng Jin · y 4 más

Categories with conjugation and octagons of Witt groups

Lewis, David · Tignol, Jean-Pierre

A categorical approach is proposed for the construction of 8-periodic chain complexes of Witt groups of categories with duality. Exactness of the resulting sequences is proved under the hypothesis that the categories are abelian and artinian or when the endomorphism algebra of each object is semilocal and rad-adically...

Stress field induced by intermetallics and grain boundaries: effect on pore nucleation and growth during tensile loading of Al 2050 alloys

Pierre LHUISSIER · James BALL · Haixing FANG · GISELE FERNANDES CHAVES MACIEIRA · y 2 más

It becomes more and more difficult to strictly control the content of iron, which often forms as detrimental intermetallics, during Al production as the demand for recycling Al alloys is increasing. Extensive researches have been performed on the evolution of pores in Al 2050 alloys using in-situ synchrotron micro and...

Dietary propolis transiently delays autoimmune diabetes onset and modulates immune responses in NOD mice

Jonas Vind · Camilla Hartmann Friis Hansen · Magni Steintún · Lukasz Krych · y 5 más

Propolis is a honey bee-derived resinous substance used in traditional medicine across many cultures to treat inflammatory and immune-related ailments. Its documented anti-inflammatory and immunomodulatory actions suggest potential value in autoimmune disease, yet its effects in type 1 diabetes (T1D) have not been exam...

Luminescence and stability of flame-made silica-embedded ZnO nanoparticles in water and at elevated temperatures

Riad, Keroles B. · Schulz, Christof · Wiggers, Hartmut

Flame-made zinc oxide (ZnO) nanoparticles, both pure and silica-embedded, were characterized for crystal size, luminescence, and stability under thermal and aqueous conditions. Photoluminescence spectroscopy revealed size-dependent quantum effects, while transmission electron microscopy (TEM) quantified size distributi...

Microplastics alter soil phosphatase activity and phosphorus mobilization: A global meta-analysis integrated with machine learning

Yangzhou Xiang · Josep Peñuelas · Matthias C. Rillig · Bin Yao · y 4 más

Agricultural soils are a major reservoir and conduit within the anthropogenic water cycle, receiving microplastics (MPs) through sewage-sludge/biosolid land application, reclaimed-water irrigation, plastic-mulch degradation and atmospheric deposition, and exporting dissolved nutrients to surface and ground waters via r...

A new system function for maximum processable flow in process plants and application to reliability assessment

Ji-Eun Byun · Se-Hyeok Lee

This study presents a new system performance function for process plant reliability analysis, formulated to capture both structural topology and process sequencing constraints. Built on a modified maximum-flow framework and solved via linear programming, the proposed function efficiently quantifies the maximum feasible...

Universities of St. Andrews, Dundee, Glasgow, and Aberdeen

Tracey GLOSTER · Anna PEREZ I RAFOLS · Dazhong ZHENG · Helge MAGNUSSEN · y 3 más

The Dundee/St Andrews/Glasgow/Aberdeen BAG research interests fall into two broad areas. Firstly, we use structural information to understand mechanisms of fundamental biological processes, protein engineering, enzymes, and biological chemistry. Secondly, we utilize structural insights to guide target selection and dev...