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Enzymatic synthesis of N-alkanoyl-N-methylglucamide surfactants: solvent-free production and environmental assessment

A biocatalysis based method for the solvent-free production of N-alkanoyl-N-methylglucamide (MEGA) surfactants was developed and used as a case study for the evaluation of different environmental assessment tools, such as the freeware package EATOS (Environmental Assessment Tool for Organic Synthesis). In order to also consider energy usage and process facilities, e. g. heating, stirring and vacuu

Designing pi-stacked molecular structures to control heat transport through molecular junctions

We propose and analyze a way of using pi stacking to design molecular junctions that either enhance or suppress a phononic heat current, but at the same time remain conductors for an electric current. Such functionality is highly desirable in thermoelectric energy converters, as well as in other electronic components where heat dissipation should be minimized or maximized. We suggest a molecular d

Snake mitochondrial genomes: phylogenetic relationships and implications of extended taxon sampling for interpretations of mitogenomic evolution

Background: Snake mitochondrial genomes are of great interest in understanding mitogenomic evolution because of gene duplications and rearrangements and the fast evolutionary rate of their genes compared to other vertebrates. Mitochondrial gene sequences have also played an important role in attempts to resolve the contentious phylogenetic relationships of especially the early divergences among al

ARCHITECTURAL OBJECTS AND SYSTEMS BUILDING

In this paper we explore the concept of “architectural object” as a representation of a real “situation” involving people, behavior, experience and environment. The purpose is to define a selection of possible configurable architectural objects that reflect the variability of situations possible to achieve using an industrialised building system. The paper presents a theoretical foundation for org

The Gaia -ESO Survey : Double-, triple-, and quadruple-line spectroscopic binary candidates

Context. The Gaia-ESO Survey (GES) is a large spectroscopic survey that provides a unique opportunity to study the distribution of spectroscopic multiple systems among different populations of the Galaxy. Aims. Our aim is to detect binarity/multiplicity for stars targeted by the GES from the analysis of the cross-correlation functions (CCFs) of the GES spectra with spectral templates. Methods. We

Selective oxidation of benzyl alcohols with molecular oxygen as the oxidant using Ag-Cu catalysts supported on polyoxometalates

We report an efficient process for the oxidation of benzyl alcohols using molecular oxygen as the oxidant catalyzed by Ag-Cu catalysts supported on polyoxometalates (Ag-Cu/POM). The Ag-Cu/POM catalyst was prepared by galvanic displacement in the presence of polyvinyl pyrrolidone and polyethylene glycol. The catalysts were characterized using Fourier transform infrared spectroscopy (FTIR), ultravio

Deep ordinal regression with label diversity

Regression via classification (RvC) is a common method used for regression problems in deep learning, where the target variable belongs to a set of continuous values. By discretizing the target into a set of non-overlapping classes, it has been shown that training a classifier can improve neural network accuracy compared to using a standard regression approach. However, it is not clear how the set

Nullstellensatz Size-Degree Trade-offs from Reversible Pebbling

We establish an exactly tight relation between reversiblepebblings of graphs and Nullstellensatz refutations of pebbling formulas,showing that a graph G can be reversibly pebbled in time t and space s if and only if there is a Nullstellensatz refutation of the pebbling formulaover G in size t + 1 and degree s (independently of the field in whichthe Nullstellensatz refutation is made). We use this

Beat flicker : a temporal light artefact due to multiple sources of time modulated light

Metrics of temporal light artefacts (TLAs) are tools meant to quantify the magnitude of the impact of temporal modulated light generated by light sources. However, as lighting systems are becoming more and more complex, just assigning a TLA metrics to a light source is not necessarily an easy task. For example, a luminaire containing two drivers operating on slightly different frequencies could ge

Performance Analysis with Bayesian Inference

Statistics are part of any empirical science, and performance analysis is no exception. However, for non-statisticians, picking the right statistical tool to answer a research question can be challenging; each statistical tool comes with a set of assumptions, and it is not clear to researchers what happens when those assumptions are violated. Bayesian statistics offers a framework with more flexib

A note on the estimation of the equity-efficiency trade-off for QALYs

In this note the veil of ignorance approach is tested as a basis for empirically determining the shape of the social welfare function for QALYs. An experiment is carried out where the participants choose between different societies that differ with respect to per capita QALYs and the distribution of QALYs. The answers are analyzed using logistic regression analysis, According to the results the re

Utbrytningar på bibliotek: En fallstudie av tre bibliotek i Skåne

This thesis is a case study of the phenomena known as broken order in three Swedish libraries: two public libraries and one university library. While Swedish libraries often use the Swedish national classification scheme, SAB, or the international classification scheme, Dewey Decimal Classification, to shelve the majority of their material, parts of the stock are placed in alternative arrangements

Decarbonizing Municipal Heating: Scenario-Based Heat Planning for Oberschleißheim, Germany

This thesis derives a procedure for heat planning with focus on heat sources through a literature review of existing guidelines and case studies from Germany, Denmark and Italy. In a second step this procedure is adopted for assessing potential scenarios for the future heat supply of the municipality of Oberschleißheim (OSH), Germany, both for a district heating (DH) grid and individual heating so

RootBound- An Exploration on Design Possibilities of Plant Roots

Agriculture suffers greatly from climate change, mainly due to fast water evaporation which prolongs dry seasons. Communities who are mostly affected by this are the ones who were already below the poverty line, worsening their condition even more. As a solution, aquaponic farms conserve and recycle water, while providing higher yields in a shorter period of time. The low maintenance makes room fo