cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The micro response mechanisms of foamed polymer rehabilitation material under compression: From a closed cell view
Creators: name: Wu, Yongshen
name: Zhang, Chao
name: Wang, Cuixia
name: Rabczuk, Timon
name: Zhu, Pengjia
name: Zhao, Peng
name: Wang, Lei
name: Zhuang, Xiaoying
name: Zhang, Juan
name: Fang, Hongyuan
Publisher: name: Amsterdam [u.a.] : Elsevier Science
Year: 2023
Subjects: subject: Deformation mechanisms
subject: Micromechanical properties
subject: Molecular dynamics
subject: Polyurethane cell
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Non-aqueous reactive foamed polyurethanes are widely used in the non-excavation rehabilitation of infrastructures and fundamental engineering. However, the effect of a microscopic cell on the understanding of micro-mechanical properties of a polyurethane is not clearly stated. In this work, a molecular model of a polyurethane closed cell is established corresponding to the field emission scanning electron microscopy results. Molecular dynamics simulations were subsequently employed to investigate the effect of a closed cell on the micro-mechanical response of polyurethane during compression. Based on the layered non-affine displacement and internal structure variables, we find that the existence of cells reduces changes in the polymer chain structure, i.e., the bond stretching, bond angle bending, and dihedral angle rotation. This makes slippage of the polymer chain more violent, and the farther away from the centre of the cell, the greater the level of the polymer chain slippage. In other words, chain slippage plays a key role in reducing the mechanical properties of a polymer. What’ s more, it is found that the number of hydrogen bonds in the cell is significantly less than that in the elastomer, which also could reduce the mechanical properties of foamed polyurethane. This study provides an efficient route for studying the micro-mechanical characterization of foamed polyurethane.
Megachile alta Mitchell, new comb.
Creators: name: Raw, Anthony
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Megachile
Megachile alta

description: alta Mitchell, new comb.
Megachile alta Mitchell 1930: 284 ­285. Female. Type locality: Costa Rica. Type repository: ANSP 4125. Examined.
Megachile (Neomegachile) alta Mitchell 1934: 302.
description: Published as part of Raw, Anthony, 2002, New combinations and synonymies of leafcutter and mason bees of the Americas (Megachile, Hymenoptera, Megachilidae), pp. 1-43 in Zootaxa 71 (1) on page 26, DOI: 10.11646/zootaxa.71.1.1, http://zenodo.org/record/155887
Gauge theory on fiber bundle of hypercomplex algebras
Creators: name: Jang, Hun
Publisher: name: Amsterdam : North-Holland Publ. Co.
Year: 2023
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: I introduce a way of constructing a fiber bundle whose fibers are given by hypercomplex algebras and woven by appropriate structure group, and present that a novel gauge theory can be built on the hypercomplex fiber bundle. In this work, I aim to answer a question about how nature selects one preferred vacuum among degenerate physical vacua, called vacuum selection problem. In the end, I found presence of the impenetrable domain wall that prohibits phase transition between the two vacua. To be specific, I found that in this theory, one particular vacuum between two degenerate physical vacua for Higgs-like scalar potential can be dynamically chosen with priority due to intrinsic even parity of both a scalar field and its vacuum under a Z2 symmetry, even though its scalar potential is given to be Z2-symmetric under both odd- and even-parity transformations of the scalar field. This means that the vacuum selection problem can be resolved in this gauge theory. I suggest that this work may be a gateway to addressing the theoretical origin of the true physical vacuum that nature takes.
Macrozoobenthos structure in relation to environmental changes in the Archipelago Sea, northern Baltic Sea
Creators: name: Hänninen, J.
name: Vuorinen, I.
Publisher: name: Boreal Environment Research Publishing Board
Year: 2001

description: Since the 1960s, the major environmental change affecting the water quality of the Baltic Sea has been eutrophication. Several types of effects were attributed to increasing eutrophication in the benthic communities. In the present study, we describe the soft bottom benthic assemblages based on species number, abundance and biomass in the Airisto Inlet in 1994, and analyse the changes of community structure in relation to major environmental changes in the Archipelago Sea area since the 1950s. Special emphasis was put on alterations of Macoma balthica and Monoporeia affinis proportions. Our results provided evidence of a general increase of benthic macrofauna, especially in the middle and southern parts of the study area. The greatest relative increase seemed to occur to polychaetes and oligochaetes, whereas M. affinis showed the greatest absolute increase. However, the relative proportions of M. balthica and M. affinis generally remained unchanged. We conclude that, in the middle and southern parts, the changes observed in macrozoobenthos were due to general eutrophication in the Archipelago Sea. In the northern parts, the communities have been remarkably influenced by local pollution and dredging.
Hypselostoma everetti E. A. Smith 1896
Creators: name: Gojšina, Vukašin
name: Hunyadi, András
name: Sutcharit, Chirasak
name: Tongkerd, Piyoros
name: Auffenberg, Kurt
name: Grego, Jozef
name: Vermeulen, Jaap J.
name: Reischütz, Alexander
name: Páll-Gergely, Barna
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Hypselostomatidae
Hypselostoma
Hypselostoma everetti

description: Hypselostoma everetti E. A. Smith, 1896
Figs 111 T, 136, 137, 140
Hypselostoma everetti Smith, 1896: 148, Plate 10, fig. 9–9 b.
Hypselostoma dohertyi Fulton, 1899: 215, pl. 11, fig. 17. syn. nov.
Gyliauchen everetti — Pilsbry 1917: 218–219, pl. 37, figs 4, 6, 10.
Gyliauchen dohertyi — Pilsbry 1917: 219–220, pl. 37, figs 7–9.
Gyliotrachela everetti — van Benthem Jutting 1950: 45; Vermeulen and Whitten 1998: 80–81, fig. 64.
Gyliotrachela dohertyi — van Benthem Jutting 1950: 45; Zilch 1984: 165.
Type material examined.
Indonesia • syntype of H. everetti; NHMUK 1896.5. 17.1–6; syntype of H. dohertyi; SMF 4586 / 1.
Additional material examined.
Indonesia • 2 shells; Kalao island, Celebes; SMF 227446 • 2 shells; Kalao island, T. H. Aldrich coll.; UF 00112280. • 1 shell; Timor island, 1 km W. Baucau; 18. Aug. 1971; F. G. Thompson leg.; locality code FGT-1729; UF 210107.
Type localities.
“ Kalao island ”, Indonesia (H. everetti); “ Tenimber I ”, (= Tanimbar islands, Indonesia) (H. dohertyi).
Differential diagnosis.
This species differs from other congeners by the presence of strong keel (almost like a shoulder) positioned slightly above the centre of the periphery and a very wide umbilicus.
Distribution.
This species is known from Timor island, Kalao island, Sulawesi, Java, Bali, Lesser Sunda islands and Tanimbar islands (latter is the type locality of H. dohertyi).
Remarks.
During examination of the type material, we found no clear differences between H. everetti and H. dohertyi. The differences mentioned by Fulton (1899) in the original description include the narrower shell, less detached aperture, “ not perspectively umbilicated ” shell and that the shell is “ more closely coiled below ”. The umbilicus appears very slightly narrower in H. dohertyi but this falls within the intraspecific variability. Other characters mentioned are also very similar between the two species and also fall within the intraspecific variability, which is especially true for the level of the detachment of the last whorl.
description: Published as part of Gojšina, Vukašin, Hunyadi, András, Sutcharit, Chirasak, Tongkerd, Piyoros, Auffenberg, Kurt, Grego, Jozef, Vermeulen, Jaap J., Reischütz, Alexander & Páll-Gergely, Barna, 2025, A new start? Revision of the genera Anauchen, Bensonella, Gyliotrachela and Hypselostoma (Gastropoda, Eupulmonata, Hypselostomatidae) of Southeast Asia with description of 46 new species, pp. 1-338 in ZooKeys 1235 on pages 1-338, DOI: 10.3897/zookeys.1235.145281
Megachile bicarinis Vachal, new comb.
Creators: name: Raw, Anthony
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Megachile
Megachile bicarinis

description: bicarinis Vachal, new comb.
Megachile bicarinis Vachal 1909: 7. Male. Type locality: Pachitea, Peru. Type repository: MNHN. Examined.
description: Published as part of Raw, Anthony, 2002, New combinations and synonymies of leafcutter and mason bees of the Americas (Megachile, Hymenoptera, Megachilidae), pp. 1-43 in Zootaxa 71 (1) on page 26, DOI: 10.11646/zootaxa.71.1.1, http://zenodo.org/record/155887
Fatigue testing and analysis of steel plates manufactured by wire-arc directed energy deposition
Creators: name: Huang, Cheng
name: Li, Lingzhen
name: Pichler, Niels
name: Ghafoori, Elyas
name: Susmel, Luca
name: Gardner, Leroy
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2023
Subjects: subject: Directed energy deposition (DED)
subject: Experiments
subject: Fatigue life
subject: Geometric variability
subject: Metal 3D printing
subject: Stress concentrations
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: Wire-arc directed energy deposition (DED), also known as wire-arc additive manufacturing (WAAM), is a metal 3D printing technique that is recognised for its high efficiency, cost-effectiveness, flexibility in build scales and suitability for the construction sector. However, there remains a lack of fundamental data on the structural performance of WAAM elements, especially regarding their fatigue behaviour. A comprehensive experimental study into the fatigue behaviour of WAAM steel plates has therefore been undertaken and is reported herein. Following geometric, mechanical and microstructural characterisation, a series of WAAM coupons was tested under uniaxial high-cycle fatigue loading. A total of 75 fatigue tests on both as-built and machined coupons, covering various stress ranges and stress ratios (R = 0.1, 0.2, 0.3 and 0.4), have been conducted. The local stress concentrations in the as-built coupons induced by their surface undulations have also been studied by numerical simulations. The fatigue test results were analysed using constant life diagrams (CLDs) and S-N (stress-life) diagrams, based on both nominal and local stresses. The CLDs revealed that the fatigue strength of the as-built WAAM steel was relatively insensitive to the different stress ratios. The S-N diagrams showed that the surface undulations resulted in a reduction of about 35% in the fatigue endurance limit for the as-built WAAM material relative to the machined material, and a reduction of about 60% in fatigue life under the same load level. The as-built and machined WAAM coupons were shown to exhibit similar fatigue behaviour to conventional steel butt welds and S355 structural steel plates, respectively. Preliminary nominal stress-based and local stress-based S-N curves were also proposed for the WAAM steel.
Guaranteed Dynamic Scheduling of Ultra-Reliable Low-Latency Traffic via Conformal Prediction
Creators: name: Cohen, Kfir M.
name: Park, Sangwoo
name: Simeone, Osvaldo
name: Popovski, Petar
name: Shamai, Shlomo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The dynamic scheduling of ultra-reliable and low-latency traffic (URLLC) in the uplink can significantly enhance the efficiency of coexisting services, such as enhanced mobile broadband (eMBB) devices, by only allocating resources when necessary. The main challenge is posed by the uncertainty in the process of URLLC packet generation, which mandates the use of predictors for URLLC traffic in the coming frames. In practice, such prediction may overestimate or underestimate the amount of URLLC data to be generated, yielding either an excessive or an insufficient amount of resources to be pre-emptively allocated for URLLC packets. In this paper, we introduce a novel scheduler for URLLC packets that provides formal guarantees on reliability and latency irrespective of the quality of the URLLC traffic predictor. The proposed method leverages recent advances in online conformal prediction (CP), and follows the principle of dynamically adjusting the amount of allocated resources so as to meet reliability and latency requirements set by the designer.
description: To appear in IEEE Signal Processing Letters
TopicBox Quick Start Guide
Creators: name: The Carpentries
name: Trusler, Angelique
name: Masinyana, Oscar
Publisher: name: Zenodo
Year: 2024

description: This guide was originally created and published by The Carpentries in October 2024 to support our community members in overcoming barriers to using TopicBox. Designed as a beginner-friendly resource, it provides practical tips to help you get started, while pointing to other trusted resources for a deeper understanding of the platform. This is not intended to be an exhaustive guide, and we warmly welcome your feedback. Please feel free to share your thoughts by emailing us at community@carpentries.org.
Violation of Bell's Inequality in the Clauser-Horne-Shimony-Holt Form with Entangled Quantum States Revisited
Creators: name: Cafaro, Carlo
name: Corda, Christian
name: Cairns, Philip
name: Bingolbali, Ayhan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Scientific imagination and experimental ingenuity are at the heart of physics. One of the most known instances where this interplay between theory (i.e., foundations) and experiments (i.e., technology) occurs is in the discussion of Bell's inequalities. In this paper, we present a revisitation of the violation of Bell's inequality in the Clauser-Horne-Shimony-Holt (CHSH) form with entangled quantum states. First, we begin with a discussion of the 1935 Einstein-Podolski-Rosen (EPR) paradox (i.e., incompleteness of quantum mechanics) that emerges from putting the emphasis on Einstein's locality and the absolute character of physical phenomena. Second, we discuss Bell's 1971 derivation of the 1969 CHSH form of the original 1964 Bell inequality in the context of a realistic local hidden-variable theory (RLHVT). Third, identifying the quantum-mechanical spin correlation coefficient with the RLHVT one, we follow Gisin's 1991 analysis to show that quantum mechanics violates Bell's inequality when systems are in entangled quantum states. For pedagogical purposes, we show how the extent of this violation depends both on the orientation of the polarizers and the degree of entanglement of the quantum states. Fourth, we discuss the basics of the experimental verification of Bell's inequality in an actual laboratory as presented in the original 1982 Aspect-Grangier-Roger (AGR) experiment. Finally, we provide an outline of some essential take home messages from this wonderful example of physics at its best.
description: 17 pages, 5 tables, 2 figures
Activity of Ammonium-Oxidizing Bacteria—An Essential Parameter for Model-Based N2O Mitigation Control Strategies for Biofilms
Creators: name: Freyschmidt, Arne
name: Beier, Maike
Publisher: name: Basel : MDPI
Year: 2023
Subjects: subject: aeration strategies
subject: biofilm
subject: extended ASM model
subject: greenhouse gas emissions
subject: process control
subject: Dewey Decimal Classification::600 | Technik::690 | Hausbau, Bauhandwerk

description: The reduction in N2O emissions is an important task in the control of wastewater treatment plants. Since local operating conditions, especially inside biofilms, are usually not known, models are an important tool in the development and implementation of control strategies. For a pilot-scale nitrifying biofilm reactor and an SBR, different operational strategies to reduce autotrophic nitrous oxide (N2O) formation were developed and tested by applying a combination of modeling and measurement. Both approaches highlighted the relevance of addressing the actual AOB activity as a sensitive control variable. The investigated strategies, therefore, focused on decreasing the AOB-related NH4 conversion rate, as autotrophic N2O formation is directly linked to AOB activity. The results showed that the biofilm system was more advantageous compared with suspended sludge systems. A higher AOB content resulted in a decrease in AOB activity, leading to fewer N2O emissions at the same reactor performance. The highest reduction in autotrophic N2O formation (SBR: 25%; Biofilm: 27%) was obtained by maximizing the aerated time per day and minimizing the number of aeration cycles (the suppression of nitrite-oxidizing bacteria still needed to be ensured). A higher biofilm thickness or a higher sludge mass in the SBR, however, did not have a noteworthy positive effect since no additional biomass could be kept in the system in the long term due to limited substrate availability. Besides nitritation, denitrification was also identified as a relevant source of N2O in both systems (biofilm: main source) due to the inhibition of N2O reduction by nitrous acid (elevated nitrite concentrations in combination with pH values < 7).
A comparative evaluation of turbulence models for simulation of unsteady cavitating flows
Creators: name: Apte, Dhruv
name: Ge, Mingming
name: Coutier-Delgosha, Olivier
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Cavitation is a complex multiphase phenomenon characterised by vapour bubbles forming due to a sudden pressure drop and is often accompanied by increased hull vibrations, increased radiated noise and decrease in propeller and impeller performance. Although the Reynolds-Averaged Navier-Stokes (RANS) method coupled with a cavitation model is still considered a practical tool to predict cavitating flows owing to its computational efficiency, it is unable to predict the unsteadiness of vapor shedding and over-predicts the eddy viscosity. To improve the prediction, an empirical eddy viscosity correction,[Reboud et al. 1998] was proposed to consider the compressibility effects produced by cavitation. Additionally, a new type of models termed as hybrid RANS-Large Eddy Simulation (LES) models have also been recently introduced in the community, having the ability to behave as a RANS or a LES model in different regions of the flow in order to combine the computational cost efficiency of RANS with the accuracy of LES modelling. However, there exists a lack of a comprehensive review of various such turbulence models like the k-ω Shear Stress Transport Model (SST), k-ω SST Scale-adaptive Simulation (SAS), k-ω SST Detached Eddy Simulation (DES), k-ω SST Delayed DES (DDES), Filter-Based Method (FBM) and Partially-Averaged Navier Stokes Method (PANS) to predict cavitating flows. In this work, we conduct such a review to compare their ability to predict cloud cavitating flows by comparing them with x-ray experimental data in a venturi. It is shown that with mesh refinement, standard models do show the vapor unsteadiness as seen in the experiment similar to that seen when using the Reboud correction. However, on local comparison of turbulence quantities, it is observed both forms of models have huge discrepancies with experimental data that does not improve downstream.
Megachile bodkini Cockerell, new comb.
Creators: name: Raw, Anthony
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Megachile
Megachile bodkini

description: bodkini Cockerell, new comb.
Megachile bodkini Cockerell 1923a: 452. Female. Type locality: Issororo, NWD, British Guiana. Type repository: BNHM 17a2461. Examined.
description: Published as part of Raw, Anthony, 2002, New combinations and synonymies of leafcutter and mason bees of the Americas (Megachile, Hymenoptera, Megachilidae), pp. 1-43 in Zootaxa 71 (1) on page 26, DOI: 10.11646/zootaxa.71.1.1, http://zenodo.org/record/155887
Biomass functions for mountain birch in the Vuoskojärvi Integrated Monitoring area
Creators: name: Starr, M.
name: Hartman, M.
name: Kinnunen, T.
Publisher: name: Boreal Environment Research Publishing Board
Year: 1998

description: Simple linear regression models for estimating the oven-dry stem, living and dead branch, and leaf components of above-ground biomass for mountain birches (Betula pubescens ssp. czerepanovii, syn.: B. czerepanovii N.I. Orlova) taller than 1.3 m growing in the Vuoskojärvi Integrated Monitoring area are presented. The models were based on allometric relationships between biomass component and tree size characteristic: stump diameter (d0.1), breast height diameter (d1.3) and height (h) of 20 specimens. Correlation analysis indicated that d1.3 and d1.32h were the best variables explaining biomass. Logarithm (natural) transformation of both d1.3 and biomass component resulted in higher correlation coefficients. The linear regression model describing the relationship between ln(d1.3) and ln(biomass) of each component was highly significant (p < 0.0001) with R2 values ranging from 62% (dead branches) to 98% (stem). Using ln(d1.32h) did not notably improve the models. The stand above-ground biomass for a plot where all stems had been measured in 1995 was estimated at 21.2 t ha–1 (stems 61%, live branches 29%, dead branches 2% and leaves 8%).
Effect of transplantation on the gonad development of the freshwater pearl mussel, Margaritifera margaritifera (L.)
Creators: name: Hanstén, C.
name: Pekkarinen, M.
name: Valovirta, I.
Publisher: name: Boreal Environment Research Publishing Board
Year: 1997

description: In Margaritifera margaritifera (L.) individuals collected from the Ähtävänjoki river in July 1988, the histological structure of the pre-spawn ovaries and testes was neat, and a normal reproductive capacity could be predicted. The sex ratio was even, and no true hermaphrodites were present. The commonly occurring \microhermaphrodite\ gonads with small nests of the germ cells of the opposite sex may show that the mussels are capable of hermaphroditism or sex reversal. The experimental transplantation of freshwater pearl mussels for conservation purposes 10 km upstream in the same river in 1987 did not disturb the mussels' gonad development. This was assessed from examination of the histological structure of the gonads in July, a year after the transfer. The sizes of testis follicles, the numbers of sperm morulae and oocytes per follicle, the occurrence of microhermaphrodite or out-of-phase follicles were similar both in endemic and transplanted mussels. From these results it could be concluded that transplantation of freshwater pearl mussels can be undertaken in a home river without reducing the gamete producing capacity of the mussels during the breeding season of the next year.
Finite axiomatizability of the rank and the dimension of a pro-$π$ group
Creators: name: Conte, Martina
name: Klopsch, Benjamin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Group Theory (math.GR)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 20E18 (Primary) 03C98, 20A15, 20D15, 20D20, 22E20 (Secondary)

description: The Prüfer rank $\mathrm{rk}(G)$ of a profinite group $G$ is the supremum, across all open subgroups $H$ of $G$, of the minimal number of generators $\mathrm{d}(H)$. It is known that, for any given prime $p$, a profinite group $G$ admits the structure of a $p$-adic analytic group if and only if $G$ is virtually a pro-$p$ group of finite rank. The dimension $\dim G$ of a $p$-adic analytic profinite group $G$ is the analytic dimension of $G$ as a $p$-adic manifold; it is known that $\dim G$ coincides with the rank $\mathrm{rk}(U)$ of any uniformly powerful open pro-$p$ subgroup $U$ of $G$.
 Let $π$ be a finite set of primes, let $r \in \mathbb{N}$ and let $\mathbf{r} = (r_p)_{p \in π}, \mathbf{d} = (d_p)_{p \in π}$ be tuples in $\{0, 1, \ldots,r\}$. We show that there is a single sentence $σ_{π,r,\mathbf{r},\mathbf{d}}$ in the first-order language of groups such that for every pro-$π$ group $G$ the following are equivalent: (i) $σ_{π,r,\mathbf{r},\mathbf{d}}$ holds true in the group $G$, that is, $G \models σ_{π,r,\mathbf{r},\mathbf{d}}$; (ii) $G$ has rank $r$ and, for each $p \in π$, the Sylow pro-$p$ subgroups of $G$ have rank $r_p$ and dimension $d_p$.
 Loosely speaking, this shows that, for a pro-$π$ group $G$ of bounded rank, the precise rank of $G$ as well as the ranks and dimensions of the Sylow subgroups of $G$ can be recognized by a single sentence in the first-order language of groups.
description: 15 pages; improved exposition
The distribution of the gastropods Theodoxus fluviatilis (L.) and Potamopyrgus antipodarum (Gray) in lakes on the Åland Islands, southwestern Finland
Creators: name: Carlsson, R.
Publisher: name: Boreal Environment Research Publishing Board
Year: 2000

description: On the Åland Islands, surrounded by the brackish Baltic Sea, the two species Theodoxus fluviatilis (L.) and Potamopyrgus antipodarum (Gray) are common and widespread. T. fluviatilis was found in lakes where the hardness values were below 3 °dH. P. antipodarum was found in four lakes at sea level and in two additional lakes of older age (higher elevation). On the Åland Islands the short distances from the lakes to the sea are advantageous for the transportation of snails, provided the lakes are connected to the sea through open ditches where fish wander or active colonization is possible. T. fluviatilis appears to be absent in Finnish lakes and P. antipodarum has previously not been encountered in Finnish lakes. The absence of the species in Finnish mainland lakes may be due to too high contents of humic substances and too low calcium values.
Effect of ammonium bisulphate formation on atmospheric water-sulphuric acid-ammonia nucleation
Creators: name: Anttila, T.
name: Vehkamäki, H.
name: Napari, I.
name: Kulmala, M.
Publisher: name: Boreal Environment Research Publishing Board
Year: 2005

description: The effect of formation of stable ammonium bisulphate clusters on the ternary water-sulphuric acid-ammonia nucleation was investigated by means of the classical thermodynamics. The performed calculations show that most of the sulphuric acid in the atmosphere is likely to be bound to stable ammonium bisulphate clusters. Consequently the nucleation rates calculated with the new model are orders, sometimes even tens of orders, of magnitude lower than the rates produced by the previous ternary model which neglected the formation of these clusters. The new nucleation rates compare favourably with the available experimental results, unlike the old ones, which are far too high. In contrast to the old ternary model, the revised model does not predict significant nucleation rates that would explain new particle formation events every time they are observed, and we have to look for other nucleation mechanisms like multi-component nucleation involving organics or ion induced nucleation to understand atmospheric new particle formation.
Development of novel PEX5-PEX14 protein-protein interaction (PPI) inhibitors based on an oxopiperazine template
Creators: name: Marciniak, Monika
name: Mróz, Piotr
name: Napolitano, Valeria
name: Kalel, Vishal C.
name: Fino, Roberto
name: Pykacz, Emilia
name: Schliebs, Wolfgang
name: Plettenburg, Oliver
name: Erdmann, Ralf
name: Sattler, Michael
name: Popowicz, Grzegorz M.
name: Dawidowski, Maciej
Publisher: name: Amsterdam [u.a.] : Elsevier Science
Year: 2023
Subjects: subject: Oxopiperazine
subject: Peptidomimetics
subject: Protein-protein interaction inhibitors
subject: Structure-based drug design
subject: Trypanocidal inhibitors
subject: α-Helical mimetics
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Protein-protein interactions (PPIs) constitute an important but challenging class of molecular targets for small molecules. The PEX5-PEX14 PPI has been shown to play a critical role in glycosome biogenesis and its disruption impairs the metabolism in Trpanosoma parasites, eventually leading to their death. Therefore, this PPI is a potential molecular target for new drugs against diseases caused by Trypanosoma infections. Here, we report a new class of peptidomimetic scaffolds to target the PEX5-PEX14 PPI. The molecular design was based on an oxopiperazine template for the α-helical mimetics. A structural simplification along with modifications of the central oxopiperazine scaffold and addressing the lipophilic interactions led to the development of peptidomimetics that inhibit PEX5-TbPEX14 PPI and display cellular activity against T. b. brucei. This approach provides an alternative approach towards the development of trypanocidal agents and may be generally useful for the design of helical mimetics as PPI inhibitors.
Megachile brethesi Schrottky, new comb.
Creators: name: Raw, Anthony
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Megachile
Megachile brethesi

description: brethesi Schrottky, new comb.
Megachile Brethesi Schrottky 1909: 220. Female. Type locality: Assuncion, Paraguay. Based on my specimens determined by Padre Moure the species is tentatively placed in this subgenus.
Megachile atricostifera Strand 1910: 534. Female. Type locality: Villa Mora, Paraguay. Synonymy of Schrottky 1913a: 194.
description: Published as part of Raw, Anthony, 2002, New combinations and synonymies of leafcutter and mason bees of the Americas (Megachile, Hymenoptera, Megachilidae), pp. 1-43 in Zootaxa 71 (1) on page 27, DOI: 10.11646/zootaxa.71.1.1, http://zenodo.org/record/155887
Childhood Memories of a Goodbye to Father and Wartime Life at Home
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: My Dad was in Bomber Command during the War, as a navigator. He was trained in South Africa and then stationed at RAF QUASTINA Middle East Forces no.61. Then he was sent to Africa.One day my mother was making strawberry jam. There was a knock on the door and my mother could see a policeman's helmet through the glass. She panicked. I was about four or five. The policeman told us that my father was going to go abroad the following week. He was billeted in Manchester at the time. My mother went across the road to my grandmother's, Granny came and finished making the jam and me and Mum immediately caught the train to London, then boarded a troop train from London to Manchester. It was full of soldiers, some of them wounded. They opened their sandwiches, corned beef again! I was very hungry!When we got to Manchester it was dark. We went to my father's billet. No-one came to the door and my mother threw stones up at the window. One of the airmen leant out of the window and called to my father, "Syd, your wife and daughter are outside."My dad wasn't pleased to see us! We stayed with him until he left on the troop ship.After he left Dad kept a diary - all he had to write in was a Recognition Handbook of German Aircraft. He kept the diary for 8 weeks - the full length of the voyage to Africa.He wrote when he could and it was important to him to get letters. The whole history of my childhood is in the letters my mother and I wrote to him.I lived in Olive Avenue during 1943. The army were billeted in the houses where people had moved to the country. My mum would do their washing and they dug the back and front gardens. Mum grew tomatoes and potatoes.Once, coming home from West Leigh School I fell and cut my knee. A soldier cleaned it and plastered it. I played hopscotch on the pavement with them.I went to the public air raid shelter in Sutherland Boulevard. My mum would take me in the middle of the night. One night it was very starry. Mr. Davis the baker was there. The doctor's helper, Ruby , was the ARP warden.My granny lived opposite me but kept the coal in her shelter so there was no room for us.
25 years of atmospheric and ecosystem measurements in a boreal forest — Seasonal variation and responses to warm and dry years
Creators: name: Neefjes, I.
name: Laapas, M.
name: Liu, Y.
name: Médus, E.
name: Miettunen, E.
name: Ahonen, L.
name: Quéléver, L.
name: Aalto, J.
name: Bäck, J.
name: Kerminen, V.-M.
name: Lamplahti, J.
name: Luoma, K.
name: Mäki, M.
name: Mammarella, I.
name: Petäjä, T.
name: Räty, M.
name: Sarnela, N.
name: Ylivinkka, I.
name: Hakala, S.
name: Kulmala, M.
name: Nieminen, T.
name: Lintunen, A.
Publisher: name: Boreal Environment Research Publishing Board
Year: 2022

description: Boreal forests are an important source of trace gases and atmospheric aerosols, as well as a crucial carbon sink. As such, they form a strongly interconnected coupled system with the atmosphere. The SMEAR II station is located in a boreal Scots pine forest in Hyytiälä, Finland, and has over 25 years of continuous measurements of atmospheric and ecosystem variables. In this study, we analyse the seasonal variations of trace gases, atmospheric aerosols, greenhouse gases, and meteorological variables, measured at the SMEAR II station during the past two and a half decades. Several ecosystem and atmospheric variables show seasonal correlations with each other, which suggests seasonal interactions within the climate system that links together ecosystem processes, greenhouse gases, trace gases and atmospheric aerosols. For instance, increased global radiation in summer increases air temperature and consequently affects the plant phenology, which promotes the ecosystem carbon exchange and biogenic volatile organic compound (biogenic VOC) release. This further affects the ambient concentrations of highly oxygenated organic molecules (HOMs) as well as the formation and growth of atmospheric organic aerosols. Organic aerosols subsequently influence aerosol optical properties and, through increased scattering, have the potential to cool the climate. We also discuss the impacts of the warm and dry summers of 2010 and 2018 on the studied variables. For these years, we find a higher-than-average ecosystem primary production especially in June, leading to an increased VOC flux from the forest. The increased VOC flux in turn leads to higher HOM and secondary aerosol concentration in the atmosphere. The latter increases light scattering by atmospheric aerosol particles and thus leads to climate cooling. The results obtained in this study improve our understanding of how boreal forests respond to climate change.
Meta-analysis on the effects of types and levels of N, P, and K fertilization on organic carbon in cropland soils
Creators: name: Liu, Yuhuai
name: Li, Chuan
name: Cai, Guan
name: Sauheitl, Leopold
name: Xiao, Mouliang
name: Shibistova, Olga
name: Ge, Tida
name: Guggenberger, Georg
Publisher: name: Amsterdam [u.a.] : Elsevier Science
Year: 2023
Subjects: subject: Agricultural upland soils
subject: Effect size
subject: Fertilization
subject: Meta-analysis
subject: Soil organic carbon
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften
subject: Dewey Decimal Classification::900 | Geschichte und Geografie::910 | Geografie, Reisen

description: Most agroecosystems receive inputs of anthropogenically derived nutrients, which impact soil organic carbon (SOC). However, the impact of the combination of different fertilizer types, as well as of various amounts of nitrogen (N), phosphorus (P), and potassium (K) fertilization, on SOC remains to be determined. Here, we reviewed 212 published studies to identify the consequences of different types and levels of N, P, and K fertilization on SOC across northern hemisphere cropland soils. The average effect size of fertilization on SOC was 0.2707 ± 0.0086 (95% confidence interval: 0.2539–0.2875, p < 0.0001). Categorical variable analysis revealed that the fertilization type significantly influenced the effect size in mineral plus organic fertilization > pure organic fertilization > pure mineral fertilization. The increased available nutrients led to the retention of organic C from farmyard manure or crop straw and limited nutrient loss, increasing C sequestration. Intermediate N (100–300 kg ha−1 year−1) and K (50–150 kg ha−1 year−1) application with high P (>60 kg ha−1 year−1) fertilization produced the most significant effect on the SOC stocks. Heterogeneity analysis revealed that the annual average precipitation, annual average temperature, water conditions, and tillage type significantly affected the average effect size. Overall, the meta-analysis revealed that multi-nutrient fertilization, with intermediate N and K levels and a high P level, decreased the dependency of the organisms released from SOM decomposition and had strong positive effects on increasing SOC in agroecosystems.
Improved water quality by process renewal in a pulp and paper mill
Creators: name: Kaplin, C.
name: Hemming, J.
name: Holmbom, B.
Publisher: name: Boreal Environment Research Publishing Board
Year: 1997

description: The Kaukas pulp and paper mill on southern Lake Saimaa was investigated to evaluate the environmental benefits of process renewal, i.e. the substitution of chlorine by chlorine dioxide in the bleaching and the modernisation of the biological effluent treatment. A comparative study of the mill effluent and the catchment water area was performed before (1991) and after (1993/1995) the changes. The chemical composition of the mill effluent was analysed with special emphasis on chlorinated organics and wood extractives. The same compounds were analysed in lake waters with respect to distribution and persistence. The study revealed a considerable decrease in the concentrations of chlorinated organics both in the mill discharge and in the lake. Most wood extractives also decreased in the effluent. However, the discharge of some wood extractives, such as sitosterol, was not significantly affected by the changes.
Megachile chichimeca Cresson, new comb.
Creators: name: Raw, Anthony
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Megachile
Megachile chichimeca

description: chichimeca Cresson, new comb.
Megachile chichimeca Cresson 1878: 130. Female. Type locality: Mexico. Type repository: ANSP 2434. Examined.
Megachile disparipennis Cockerell in W.P. Cockerell 1917: 192. Female. Type locality: Point Isabel, Texas, U.S.A. Synonymy of Mitchell 1935a: 39.
Megachile (Neomegachile) chichimeca Mitchell 1934: 302.
description: Published as part of Raw, Anthony, 2002, New combinations and synonymies of leafcutter and mason bees of the Americas (Megachile, Hymenoptera, Megachilidae), pp. 1-43 in Zootaxa 71 (1) on page 27, DOI: 10.11646/zootaxa.71.1.1, http://zenodo.org/record/155887
Numerical solutions for the $f(R)$-Klein-Gordon system
Creators: name: Vinckers, Ulrich K. Beckering
name: de la Cruz-Dombriz, Álvaro
name: Pollney, Denis
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct a numerical relativity code based on the Baumgarte-Shapiro-Shibata-Nakamura (BSSN) formulation for the gravitational quadratic $f(R)$ Starobinsky model. By removing the assumption that the determinant of the conformal 3-metric is unity, we first generalize the BSSN formulation for general $f(R)$ gravity theories in the metric formalism to accommodate arbitrary coordinates for the first time. We then describe the implementation of this formalism to the paradigmatic Starobinsky model. We apply the implementation to three scenarios: the Schwarzschild black hole solution, flat space with non-trivial gauge dynamics, and a massless Klein-Gordon scalar field. In each case, long-term stability and second-order convergence is demonstrated. The case of the massless Klein-Gordon scalar field is used to exercise the additional terms and variables resulting from the $f(R)$ contributions. For this model, we show for the first time that additional damped oscillations arise in the subcritical regime as the system approaches a stable configuration.
description: 34 pages, 7 figures, corrigendum included
Composites Based on Poly(ε-caprolactone) and Graphene Oxide Modified with Oligo/Poly(Glutamic Acid) as Biomaterials with Osteoconductive Properties
Creators: name: Solomakha, Olga
name: Stepanova, Mariia
name: Gofman, Iosif
name: Nashchekina, Yulia
name: Rabchinskii, Maxim
name: Nashchekin, Alexey
name: Lavrentieva, Antonina
name: Korzhikova-Vlakh, Evgenia
Publisher: name: Basel : MDPI
Year: 2023
Subjects: subject: biocompatible polymer composites
subject: grafting from
subject: grafting to
subject: graphene oxide
subject: graphene oxide modification
subject: oligomers and polymers of glutamic acid
subject: osteoconductive materials
subject: poly(ε-caprolactone)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The development of new biodegradable biomaterials with osteoconductive properties for bone tissue regeneration is one of the urgent tasks of modern medicine. In this study, we proposed the pathway for graphene oxide (GO) modification with oligo/poly(glutamic acid) (oligo/poly(Glu)) possessing osteoconductive properties. The modification was confirmed by a number of methods such as Fourier-transform infrared spectroscopy, quantitative amino acid HPLC analysis, thermogravimetric analysis, scanning electron microscopy, and dynamic and electrophoretic light scattering. Modified GO was used as a filler for poly(ε-caprolactone) (PCL) in the fabrication of composite films. The mechanical properties of the biocomposites were compared with those obtained for the PCL/GO composites. An 18–27% increase in elastic modulus was found for all composites containing modified GO. No significant cytotoxicity of the GO and its derivatives in human osteosarcoma cells (MG-63) was revealed. Moreover, the developed composites stimulated the proliferation of human mesenchymal stem cells (hMSCs) adhered to the surface of the films in comparison with unfilled PCL material. The osteoconductive properties of the PCL-based composites filled with GO modified with oligo/poly(Glu) were confirmed via alkaline phosphatase assay as well as calcein and alizarin red S staining after osteogenic differentiation of hMSC in vitro.
On Bloch's map for torsion cycles over non-closed fields
Creators: name: Alexandrou, Theodosis
name: Schreieder, Stefan
Publisher: name: Cambridge : Cambridge Univ. Press
Year: 2023
Subjects: subject: 14C15
subject: 14C25
subject: 14D06
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: We generalize Bloch's map on torsion cycles from algebraically closed fields to arbitrary fields. While Bloch's map over algebraically closed fields is injective for zero-cycles and for cycles of codimension at most two, we show that the generalization to arbitrary fields is only injective for cycles of codimension at most two but, in general, not for zero-cycles. Our result implies that Jannsen's cycle class map in integral -adic continuous étale cohomology is, in general, not injective on torsion zero-cycles over finitely generated fields. This answers a question of Scavia and Suzuki.
Kontaktassimilation bei Konsonantenverbindungen: Bedarfsermittlung für Berufseinsteigende und Entwicklung geeigneter Hilfsmittel für die Praxis
Creators: name: Birkan, Ozan
Publisher: name: Interkantonale Hochschule für Heilpädagogik
Year: 2024
Subjects: Logopädie
Bachelorarbeit
Kontaktassimilation
Konsonantenverbindung
Hilfsmittel
Praxis
Bedarfsermittlung
Berufseinstieg
Aussprachestörung
Therapie

description: Der Berufseinstieg ist bekanntlich nicht leicht. Das gilt ebenfalls für die Logopädie. Die Vielfalt an Aussprachestörungen stellt eine grosse Herausforderung dar. Damit müssen sich Berufseinsteigende ab dem ersten Arbeitstag auseinandersetzen. Nach Abschluss des Logopädie-Studiums fehlt es nicht an theoretischen Fachkenntnissen, sondern vielmehr an praktischen Arbeitstools. Diese Entwicklungsarbeit widmet sich der Erarbeitung geeigneter Werkzeuge für die Praxis und basiert auf einer empirischen Analyse. Das Ziel ist die Entwicklung eines Instruments, das die Identifikation, Einordnung, Diskriminierung und gezielte Therapieableitung der isolierten Kontaktassimilation unterstützt. In einem ersten Schritt bedarf es einer umfassenden Auseinandersetzung mit theoretischen Grundlagen, Diagnostikverfahren und Therapieansätzen. Den empirischen Teil dieser Arbeit bildet eine Online-Umfrage unter Logopädie-Studierenden. Die Antworten geben Aufschluss über den tatsächlichen Bedarf sowie die Form eines Hilfsmittels. Das Zusammenführen von theoretischen Konzepten und empirischen Erkenntnissen mündet in der Entwicklung eines Ablaufdiagramms, das Berufseinsteigende im Umgang mit einer Kontaktassimilation der Konsonantenverbindungen /tʁ/ und /dʁ/ unterstützen soll.
On the variation operator for the Ornstein-Uhlenbeck semigroup in dimension one
Creators: name: Casarino, Valentina
name: Ciatti, Paolo
name: Sjögren, Peter
Publisher: name: arXiv
Year: 2023
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42A99, 47D03

description: Consider the variation seminorm of the Ornstein-Uhlenbeck semigroup $H_t$ in dimension one, taken with respect to $t$. We show that this seminorm defines an operator of weak type $(1,1)$ for the relevant Gaussian measure. The analogous $L^p$ estimates for $1
description: 16 pages. Some relevant references have ben added
Megachile clara Mitchell, new comb.
Creators: name: Raw, Anthony
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Megachile
Megachile clara

description: clara Mitchell, new comb.
Megachile clara Mitchell 1930: 281. Male. Type locality: Prieta, Honduras.
Megachile (Neomegachile) clara Ayala et al 1997: 455.
description: Published as part of Raw, Anthony, 2002, New combinations and synonymies of leafcutter and mason bees of the Americas (Megachile, Hymenoptera, Megachilidae), pp. 1-43 in Zootaxa 71 (1) on page 27, DOI: 10.11646/zootaxa.71.1.1, http://zenodo.org/record/155887
Topology optimization of microstructures with perturbation analysis and penalty methods
Creators: name: Li, Bin
name: Zhuang, Xiaoying
name: Fu, Xiaolong
name: Rabczuk, Timon
Publisher: name: Berlin ; Heidelberg ; New York : Springer
Year: 2023
Subjects: subject: Homogenization
subject: Microstructure
subject: Penalty methods
subject: Perturbation analysis
subject: Topology optimization
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: Topology optimization at the continuum nano/microscale is of wide interest in designing and developing more efficient micro/nano electromechanical systems. This paper presents a new methodology for topology optimization of microstructures that is based on perturbation analysis and the penalty methods. The homogenized material coefficients are numerically computed based on perturbation analysis, and periodic boundary conditions are imposed by the penalty methods. The sensitivity analysis is implemented directly without the adjoint method. The extension of the proposed method to the design of components for multi-field analysis is straightforward. The capability and performance of the presented methodology are demonstrated through several numerical examples.