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A “transient-comonomer” strategy for polycondensation of lignin-derived AB-type aromatic polyesters to high molecular weight

In the active exploration of novel biobased semicrystalline polyesters to replace petrochemical plastics, AB-type aromatic condensation polymerizations are relatively rarely investigated but gain growing attention due to the straightforward synthesis of AB-type monomers from diverse asymmetric biobased feedstocks. However, achieving high molecular weights through AB-type melt polycondensations is

Have you ever seen the rain? Observing a record convective rainfall with national and local monitoring networks and opportunistic sensors

Short-duration extreme rainfall can cause severe impacts in built environments and flood mitigation measures require high-resolution rainfall data to be effective. It is a particular challenge to observe convective storms, which are expected to intensify with climate change. However, rainfall monitoring networks operated by national meteorological and hydrological services generally have limited a

How much do we really care what we pick? : Pre-verbal and verbal investment in choices concerning faces and figures

Every day we make choices, but our degree of investment in them differs, both in terms of pre-verbal experience and verbal justification. In an earlier experimental study, participants were asked to pick the more attractive one among two human faces, and among two abstract figures, and later to provide verbal motivations for these choices. They did not know that in some of the cases their choices

Assessment of Precipitation Deficit in the São Francisco River Basin From 1998 to 2018

This work presents an assessment of the precipitation deficit in the São Francisco River Basin (SFRB) based on temporal, seasonal and regional analyses of two decades of precipitation data products derived from satellite missions launched since 1997. The temporal analyses were performed by means of three 3-month SPI time series, consisting of 250 values each derived from TRMM, CHIRPS and PERSIANN-

Impact of the energy crisis on indoor temperatures and thermal comfort in UK houses during winter 2023

Geopolitical, health and economic events have led to an accumulated surge in energy prices in the UK at the beginning of the 2020s. In response, studies and media reports show that households have had to reduce the running of their heating systems to cut their energy bills. However, there is limited research on the impact of this context on indoor thermal conditions and occupants’ ability to meet

The dasyscyphins A similar to C and niveulone, new biologically active compounds from the ascomycete Dasyscyphus niveus

In the course of a screening for cytotoxic Compounds from fungi four new terpenoid metabolites, named dasyscyphins A, B, C, and niveulone were isolated from fermentations of Dasyscyphus niveus strain A0101. While dasyscyphin A (1) exhibited no significant biological activities in our test systems dasyscyphin B (2) and dasyscyphin C (3) showed cytotoxic activities against human (HepG2, Hela S3, U93

The 5 angstrom structure of heterologously expressed plant aquaporin SoPIP2;1

SoPIP2;1 is one of the major integral proteins in spinach leaf plasma membranes. In the Xenopus oocyte expression system its water channel activity is regulated by phosphorylation at the C terminus and in the first cytosolic loop. To assess its structure, SoPIP2;1 was heterologously expressed in Pichia pastoris as a His-tagged protein and in the non-tagged form. Both forms were reconstituted into

Climate influenced deposition on a low latitude Sheinwoodian carbonate ramp, Gotland, Sweden

The Sheinwoodian succession of Gotland comprises the Högklint, Tofta and Hangvar Formations and most of the Slite Group. The succession consists of hierarchically ordered shallow marine depositional cycles, produced by orbitally forced climate changes. During warmer and wetter intervals (climate maxima) more carbonate was produced than during the cooler and dryer climate minima. Higher carbonate p

Dijet angular distributions in proton-proton collisions at root s = 7 TeV and root s = 14 TeV

Dijet angular distributions provide an excellent tool for looking at high transverse momentum parton interactions in order to study both QCD and new physics processes. With the Large Hadron Collider (LHC) recently brought into use, an unprecedented energy regime has opened up. ATLAS is one of the experiments at the LHC. Its high performance calorimeter system providing near hermetic coverage in th

Physiological integration and morphological plasticity in extensive clonal plants

Popular Abstract in Swedish Fysiologisk integrering och morfologisk plasiticitet i stora klonala växter Många av våra vanligaste växter är klonala, dvs de kan producera avkommor utan sexuell befruktning. Hit räknas blåbär och lingon, många av våra vårväxter som tex. vitsippa och flera av våra värsta ogräs, som kvickrot och kirskål. En fördel som klonala växter har är att dotterskott som fortsätteClonal plants show a large variation in physiological integration, i.e. the translocation of resources among ramets within the clone. As resource transport is costly, we hypothesized that plants from poor sites should be more highly integrated than plants from rich sites and that plants would benefit if they were plastic in their degree of integration. Tracers were used to study the transport of w

Predictors of narrative text quality in students with hearing loss

Aim: Students with hearing loss (HL) often fall behind hearing peers in complex language tasks such as narrative writing. This study explored the effects of school grade, gender, cognitive and linguistic predisposition and audiological factors on narrative text quality in this target group.Method: Eleven students with HL in Grades 5–6 and 7–8 (age 12–15) who took part in a writing intervention wro

A boy born with multiple lesions of atrophoderma

Aims: The Atrophodermas include a large group of disorders appearing as localized or widespread depressed skin areas and characterized by underlying dermal atrophy. The present study aims to report a peculiar form of previously unreported focal dermal atrophy. Methods: We studied over a period of 5 years a boy who manifested, since birth, multiple hypopigmented cutaneous atrophic lesions of the at

The PDF4LHC Working Group Interim Recommendations

This note provides an interim summary of the current recommendations of thePDF4LHC working group for the use of parton distribution functions (PDFs)and of PDF uncertainties at the LHC, for cross section and cross section uncer-tainty calculations. It also contains a succinct user guideto the computation ofPDFs, uncertainties and correlations using available PDF sets.A companion note (the PDF4LHC W

Expanding the clinical spectrum of 3-phosphoglycerate dehydrogenase deficiency

3-Phosphoglycerate dehydrogenase (3-PGDH) deficiency is considered to be a rare cause of congenital microcephaly, infantile onset of intractable seizures and severe psychomotor retardation. Here, we report for the first time a very mild form of genetically confirmed 3-PGDH deficiency in two siblings with juvenile onset of absence seizures and mild developmental delay. Amino acid analysis showed se

Measuring the wedge of flat optical windows

A novel interferometric technique to measure small wedge angle of transparent windows is proposed. The technique is based on the measurement of the shift of the interference pattern generated by two sheared copies of a laser beam after crossing the optical wedge. A simple lens is used to combine the two beams in their focal plane and measurements are taken for different shears. It is not necessary