cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Phosphorus sorption and external phosphorus requirement of soils: the Case of Metahara Sugar Estate, Ethiopia.
Creators: name: Fekadu Fanjana
name: Wassie Haile
name: Gashaw Mitike
Publisher: name: Journal of Science and Inclusive Development, Wolaita Sodo University
Year: 2020

description: Low availability of P limits crop production in the Ethiopian soils. There are many reasons for low P availability to soil. One of them is sorption. Soil phosphorus sorption and supply characteristics of the Metahara Sugar Estate soils were investigated using soil samples collected from soil fertility Class I, Class II and Class III of the farms. In this sorption study, three grams of soil from each sample was equilibrated with 30 ml of 0.01 M CaCl2 solution containing different amount of KH2PO4 and the concentration of P was determined by ascorbic acidmolybdate method. Eventually, the amount of adsorbed P by each soil was calculated and the data were fitted into the Langmuir and Freundlich equations. Results indicated that P sorption data of all soils fitted well with Freundlich equations but not with the Langmuir equation. Freundlich Kf and external P requirement (EPRF) of the soils ranged from 92.54-96.94 and 17.3- 23.72 mg kg-1 respectively. There is no significant correlation in their Kf and EPR. The pH, OC, exchangeable K and Mg contents of soil had significant influences on the sorption capacities of Metahara sugar estate soils. Since all fertility class soils had EPR < 150 mg kg-1, they were classified under the low P sorption category. The low P sorption nature of the soils permits the use of low P fertilizer dose in the range of 34.6–47.4 kg ha-1. This implies that high P sorption is not P limiting factor in the estate. The result further indicates that current P fertilizer application rate of 30 kg P ha-1 being practiced across all soil classes of the farm needs to be revised after validating the EPR values estimated in this study for each soil both in the greenhouse and in the field at Metahara Sugar Estate.
A Survey of Current Trends in Distributed, Grid and Cloud Computing
Creators: name: Mittal, Gaurav
name: Kesswani, Dr. Nishtha
name: Goswami, Kuldeep
Publisher: name: arXiv
Year: 2013
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Through the 1990s to 2012 the internet changed the world of computing drastically. It started its journey with parallel computing after it advanced to distributed computing and further to grid computing. And in present scenario it creates a new world which is pronounced as a Cloud Computing [1]. These all three terms have different meanings. Cloud computing is based on backward computing schemes like cluster computing, distributed computing, grid computing and utility computing. The basic concept of cloud computing is virtualization. It provides virtual hardware and software resources to various requesting programs. This paper gives a detailed description about cluster computing, grid computing and cloud computing and gives an insight of some implementations of the same. We try to list the inspirations for the advent of all these technologies. We also account for some present scenario faults of grid computing and also discuss new cloud computing projects which are being managed by the Government of India for learning. The paper also reviews the existing work and covers (analytically), to some extent, some innovative ideas that can be implemented.
description: 6 pages
Stochastic homogenization of viscous Hamilton-Jacobi equations and applications
Creators: name: Armstrong, Scott N.
name: Tran, Hung V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 35B27, 60K37

description: We present stochastic homogenization results for viscous Hamilton-Jacobi equations using a new argument which is based only on the subadditive structure of maximal subsolutions (solutions of the "metric problem"). This permits us to give qualitative homogenization results under very general hypotheses: in particular, we treat non-uniformly coercive Hamiltonians which satisfy instead a weaker averaging condition. As an application, we derive a general quenched large deviations principle for diffusions in random environments and with absorbing random potentials.
description: 37 pages
title: Tribology in Warm and Hot Aluminum Sheet Forming: Transferability of Strip Drawing Tests to Forming Trials
Creators: name: Schell, Lukas
name: Sellner, Erik
name: Massold, Michael
name: Groche, Peter
Publisher: name: Wiley-VCH
Year: 2023

description: For conventional sheet metal forming at room temperature, numerous tribometers have been developed in the 20th century. At the present state of the art, there are some challenges for tribometry in warm and hot forming processes of high‐strength aluminum (e.g., EN AW‐7075). Especially for nonisothermal processes with heated sheets and cooled dies, the tribological design is a major challenge, which needs to be addressed by investigations with adapted tribometers. Herein, the transferability of friction and wear behavior of three different lubricants and temperatures is investigated. Therefore, tribometer test results are compared with real forming trials in combination with thermomechanical finite element simulations. Both the behavior of different lubricant types and the characteristics of tool lubrication in sheet metal forming are discussed.
Additional file 1 of Healthcare resource utilization and costs among patients with heart failure with preserved, mildly reduced, and reduced ejection fraction in Spain
Creators: name: Escobar, Carlos
name: Palacios, Beatriz
name: Varela, Luis
name: Gutiérrez, Martín
name: Duong, Mai
name: Chen, Hungta
name: Justo, Nahila
name: Cid-Ruzafa, Javier
name: Hernández, Ignacio
name: Hunt, Phillip R.
name: Delgado, Juan F.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Hematology

description: Additional file 1: Supplementary Table 1. Definition of the variables (codes).
How legal, economic, and political factors have influenced regionalist endeavours, and what approaches are the most serviceable for the future of regionalism in a globalised world?
Creators: name: Anand, Ruhi
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 48
subject: Law and legal studies

description: Regionalism has been defined as the coming together of nations with a common sense of purpose, consolidated by institutions that help charter a collective identity within a geographical region. It is difficult to graph the true origins of the concept of regionalism and region-building. However, arguably, it was not until the end of the second World War that it began to gain gravitas as an ideology in the sphere of international relations. The acceptance of regionalism on the European continent highlighted the true potential of regional associations. Regionalism in Europe created an environment that aided the construction of stability and peace through a purposeful harmonisation in trading rules and a consolidation of bargaining power. Although, following the advent of the Cold War, regionalism gained a negative connotation. It was often described as the forerunner for polarisation, fragmentation, protectionism, marginalisation and so on. The Doha Round (2001) reminded the world of the true efficacy of regionalism, particularly for developing nations. Regionalism is an important concept to study as it goes beyond simple trade liberalisation, it also strengthens democratic discourses, legislations, and crucial policy areas that enhance growth and facilitate structural change in a region.This study discusses in detail the current state of regionalism, followed by an exemplification of the main models of regionalism as implemented by the three key regional blocs, namely, the European Union, the Association of South East Asian Nations, and the US-Mexico-Canada Agreement. The thesis discusses these key models of regionalism to analyse their serviceability and applicability to their respective regions to discuss to some extent the future of regionalism in the globalised world order. It is difficult to find a study that analyses the legal and institutional spects of the various regional associations, it is an aspect of this field that is often overlooked. Ultimately, this study aims to enhance the understanding of the transformative potential that regionalism possesses in shaping the contemporary geopolitical landscape.This study adopts a combination ofsocio-legal, interdisciplinary, and historic legal research methodologies to draw from fields such as law, economics, political science, and history to present a thorough analysis of the development of regionalism and what the future holds for it. The study is concluded by a discussion on the most serviceable model of regionalism in today’s globalised world, which is open regionalism.
SUMO-Interacting Motifs of Human TRIM5α are Important for Antiviral Activity
Creators: name: Arriagada, Gloria
name: Muntean, Lucia N.
name: Goff, Stephen P.
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Virology
subject: Molecular biology

description: Human TRIM5α potently restricts particular strains of murine leukemia viruses (the so-called N-tropic strains) but not others (the B- or NB-tropic strains) during early stages of infection. We show that overexpression of SUMO-1 in human 293T cells, but not in mouse MDTF cells, profoundly blocks N-MLV infection. This block is dependent on the tropism of the incoming virus, as neither B-, NB-, nor the mutant R110E of N-MLV CA (a B-tropic switch) are affected by SUMO-1 overexpression. The block occurred prior to reverse transcription and could be abrogated by large amounts of restricted virus. Knockdown of TRIM5α in 293T SUMO-1-overexpressing cells resulted in ablation of the SUMO-1 antiviral effects, and this loss of restriction could be restored by expression of a human TRIM5α shRNA-resistant plasmid. Amino acid sequence analysis of human TRIM5α revealed a consensus SUMO conjugation site at the N-terminus and three putative SUMO interacting motifs (SIMs) in the B30.2 domain. Mutations of the TRIM5α consensus SUMO conjugation site did not affect the antiviral activity of TRIM5α in any of the cell types tested. Mutation of the SIM consensus sequences, however, abolished TRIM5α antiviral activity against N-MLV. Mutation of lysines at a potential site of SUMOylation in the CA region of the Gag gene reduced the SUMO-1 block and the TRIM5α restriction of N-MLV. Our data suggest a novel aspect of TRIM5α-mediated restriction, in which the presence of intact SIMs in TRIM5α, and also the SUMO conjugation of CA, are required for restriction. We propose that at least a portion of the antiviral activity of TRIM5α is mediated through the binding of its SIMs to SUMO-conjugated CA.
Non-Discriminatory Electoral Rules, Local Public Goods, and Redistribution: Evidence from US Municipalities
Creators: name: Elias, Ferran
Publisher: name: Columbia University
Year: 2014
Subjects: subject: Economics
subject: Law
subject: FOS: Law

description: The Voting Right Act guaranteed the right to vote for minorities, including the prohibition of any electoral discriminatory practices on the basis of race. This triggered a series of court decisions outlawing discriminatory electoral rules between 1970 and 1990. I study the effects of several court orders that guarantee minority representation on city public budgets, and find that both local public good expenditures (5-7.5%) and city tax collection (5-10%) increased, after the changes towards non-discriminatory electoral rules. I also explore the distributional consequences of non-discriminatory elections and find that the fraction of black public workers and citizens increased after changes in the election system, while those of whites decreased. The growth rates of black house values and rents also increase more. The findings are inconsistent with a negative effect of ethnic heterogeneity in the city council on public goods, and with common-pool theories. I show evidence that the most plausible channel that explains the results is the new legislative bargaining power that black communities gained.
Complexity of Judgment Aggregation
Creators: name: Endriss, Ulle
name: Grandi, Umberto
name: Porello, Daniele
Publisher: name: arXiv
Year: 2014
Subjects: subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: We analyse the computational complexity of three problems in judgment aggregation: (1) computing a collective judgment from a profile of individual judgments (the winner determination problem); (2) deciding whether a given agent can influence the outcome of a judgment aggregation procedure in her favour by reporting insincere judgments (the strategic manipulation problem); and (3) deciding whether a given judgment aggregation scenario is guaranteed to result in a logically consistent outcome, independently from what the judgments supplied by the individuals are (the problem of the safety of the agenda). We provide results both for specific aggregation procedures (the quota rules, the premise-based procedure, and a distance-based procedure) and for classes of aggregation procedures characterised in terms of fundamental axioms.
Enhanced Wide-band Infrared Absorptivity of Black Silicon
Creators: name: Sarkar, Sreyash
name: A. Elsayed, Ahmed
name: Marty, Frédéric
name: Drévillon, Jérémie
name: M. Sabry, Yasser
name: Zhao, Jiancun
name: Yu, Yiting
name: Richalot, Elodie
name: Basset, Philippe
name: Bourouina, Tarik
name: Nefzaoui, Elyes
Publisher: name: Société Française de Thermique
Year: 2020
Subjects: infrared radiative properties
black silicon
absorptance
doping

description: Infrared radiative properties of materials are of fundamental significance for several applications involving thermal radiation conversion and management such as sensors, thermo-photovoltaics, thermal rectification, thermal memories, thermal logical circuits and radiative cooling[1], subsequently, attracting an increased attention in recent years [2]. In the present work, we report, on the exceptionally high absorptivity of Black Silicon (BSi) in the spectral range of thermal radiation, which can be instrumental for various thermal radiation related applications. Black Silicon (BSi) is a bottom-up nano-structured silicon surface that can be obtained by different techniques [3] including wafer-level cryogenic plasma etching [4]. It is well known since [5] that such nano-scale features lead to a significant enhancement of silicon absorptivity in the visible range [4]. Having previously shown [6][7] that we can extend such outstanding properties to the mid-infrared (MIR) by using highly doped silicon, in this work we report that the high absorptivity in fact further hinges on to the far-infrared(FIR) range. Having fabricated two wafers of BSi having n-type doping of 2x1018 cm-3 (standard doping) and 4.5x1019 cm-3 (high doping), we have found experimentally and confirmed by electromagnetic numerical simulations that for highly doped BSi, a high absorptivity is observed till 15~$\unit{\mu m}$ which has also been compared with similarly doped Flat Si(FSi) samples. However, beyond 15~$\unit{\mu m}$, the absorptivity of highly doped BSi sample shows a growing tendency to decrease. Subsequent processing of SEM images reveals that these noteworthy radiative properties can probably be attributed to particular morphological features of heavily doped BSi at the nano-scale. \footnotesize{ \noindent ~[1] Ko, B et. al., Energies, no.12, p. 89, 2019. \noindent ~[2] E. Rephaeli et. al., Nano Lett., no. 13, p. 1457, 2013. \noindent ~[3] M. Steglich et al., Laser \& Photonics Reviews, vol. 8, no. 2, pp. L13–L17, 2014. \noindent ~[4] D. A. Saab et al., Physical review letters, vol. 113, no. 26, p. 265502, 2014. \noindent ~[5] K. N. Nguyen et al., Journal of Applied Physics, vol. 113, no. 19, p. 19490. \noindent ~[6] S. Sarkar, et al., 32nd International Conference on Micro Electromechanical Systems (MEMS), IEEE, 2019. \noindent ~[7] S. Sarkar, et al., 25th International Workshop on Thermal Investigation of ICs and Systems (THERMINIC 2019).}
title: Extension of Process Limits in High‐Strength Aluminum Forming by Local Contact Heating
Creators: name: Sellner, Erik
name: Xu, Yikai
name: Groche, Peter
Publisher: name: Wiley-VCH
Year: 2023

description: The aluminum alloy EN AW‐7075 T6 is used in the automotive sector for its favorable strength‐to‐weight ratio. However, the limited cold formability is currently addressed by energy‐ and time‐consuming temperature‐assisted processes. In order to limit the effort to critical forming areas only, the state‐of‐the‐art shows promising results for increasing the blank temperature in the range of warm forming. The design of new processes in an industrial context requires appropriate numerical simulation with inherent complexity due to time‐ and temperature‐dependent effects. Herein, the potential of a newly developed tool setup and process chain with integrated local contact heating of the EN AW‐7075 T6 blank is investigated on the basis of a curved hat profile. A thermomechanically coupled FE model of the process is developed and validated. The influence of the local heating layout is analyzed in experimental forming tests and a corresponding process window is derived. The influence of local heating on the occurring failure mechanisms is discussed based on simulation results. The equivalent plastic strain evolution is successfully used to evaluate the local heating dependent failure behavior. A significant increase in the overall formability of the part is achieved by the proposed process chain.
Développement d'un isolant thermique ligno-cellulosique et identification de ses propriétés thermo-physiques
Creators: name: Padayodi, Essolé
name: Aghahadi, Mohammad
name: Abboudi, Saïd
name: Bahrani, Seyed Amir
Publisher: name: Société Française de Thermique
Year: 2020
Subjects: Conductivité thermique
isolant thermique
isotherme de désorption
plan chaud
lin

description: Les économies d'énergies constituent actuellement l'un des axes majeurs de réduction des gaz à effet de serre et de nombreuses études montrent que la conférence des Nations Unies sur le climat COP21 identifie le chauffage des logements et des bâtiments comme l'un des axes majeurs de réduction des énergies. Les isolants ligno-cellulosiques présentent le double intérêt d'un pouvoir isolant élevé et d'un bilan carbone réduit. Mais leurs propriétés d'isolation thermique peuvent être altérées par l'humidité qu'ils peuvent absorber lorsqu'ils sont exposés à un environnement humide. En effet les fibres naturelles ligno-cellulosiques sont fortement hydrophiles et peuvent absorber l'humidité de l'air ambiant jusqu'à un cinquième de leur poids. La phase liquide participe alors aux transferts de chaleur en altérant la résistance thermique de l'isolant. Il en résulte une hausse de la consommation de l'énergie au chauffage et des émissions associées. La présente étude vise à caractériser les propriétés hydriques et thermiques d'un isolant ligno-cellulosique dans une atmosphère d'hygrométrie variable. A cet effet, le phénomène de diffusion de l'humidité dans un isolant hydrophile en fibres végétales est étudié en corrélant la variation de ses propriétés hydriques et celle de ses propriétés thermiques. Un isolant thermique en Feutre de Fibres de Lin (FFL) est fabriqué et son absorption de l'humidité est conduite à partir d'échantillons séjournant jusqu'à l'équilibre hygrothermique dans des dessiccateurs d'humidité variable (HR= 7,4\%, 32\%, 56\%, 73\%, 83\% et 97\%) et à 30$^{\circ}$C. Celle-ci est générée au moyen de six solutions salines saturées. Une courbe d'isotherme d'adsorption est alors établie. La forme sigmoïdale de type II, selon la classification BDDT (Brunauer, Deming, Deming et Teller), de cette courbe confirme bien que l'isolant FFL est un solide macroporeux. Cette isotherme a permis de modéliser le rôle que jouent les molécules d'eau au sein de l'isolant thermique humide. Il en résulte que la capacité d'absorption d'humidité de l'isolant FFL dépend principalement du niveau d'hygrométrie de l'air ambiant que de sa masse volumique. Les mesures expérimentales des isothermes d'adsorption des échantillons FFL de masses volumiques apparentes différentes, soient 341 et 766~$\unit{kg.m^{-3}}$, ont permis de le confirmer. La cinétique d'adsorption de l'humidité par l'isolant hydrophile FFL est interprétée à partir du modèle de diffusion de Fick et du modèle d'adsorption de Park. Le premier a permis une bonne identification des propriétés d'adsorption d'humidité, en l'occurrence la diffusive massique. Enfin la méthode plan chaud, adaptée pour les matériaux hydrophiles, a été mise en œuvre pour la mesure de la conductivité thermique de l'isolant sous différentes hygrométries.
Additional file 1 of Deletion patterns, genetic variability and protein structure of pfhrp2 and pfhrp3: implications for malaria rapid diagnostic test in Amhara region, Ethiopia
Creators: name: Molina - de la Fuente, Irene
name: Yimar, Mulat
name: García, Luz
name: González, Vicenta
name: Amor, Arancha
name: Anegagrie, Melaku
name: Benito, Agustín
name: Martínez, Javier
name: Moreno, Marta
name: Berzosa, Pedro
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Origin of homologous sequences included for phylogenetic analysis.
Hadron structure within the point form of relativistic quantum mechanics
Creators: name: Gomez-Rocha, M.
name: Schweiger, W.
name: Senekowitsch, O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an outline of recent developments in the field of hadron form-factor calculations within constituent-quark models using the point form of relativistic quantum mechanics. Our method to calculate currents and form factors is exemplified by means of the weak $B\rightarrow D$ transition. We present results for weak $B\rightarrow D$ transition form factors in the space- and the time-like momentum-transfer region. We discuss how wrong cluster properties, which one has to deal with when employing relativistic quantum mechanics, affect these form factors and we estimate the role non-valence, Z-graph contributions may play for decay kinematics.
description: Talk presented by W. Schweiger at "The 22nd European Conference on Few-Body Problems in Physics", Cracow, Poland, Sep. 9-13, 2013
Storable Votes and Judicial Nominations in the U.S. Senate
Creators: name: Casella, Alessandra M.
name: Turban, Sebastien
name: Wawro, Gregory J.
Publisher: name: Columbia University
Year: 2014
Subjects: subject: Economics
subject: Political science
subject: FOS: Political science

description: We model a procedural reform aimed at restoring a proper role for the minority in the confirmation process of judicial nominations in the U.S. Senate. We propose that nominations to the same level court be collected in periodic lists and voted upon individually with Storable Votes, allowing each senator to allocate freely a fixed number of total votes. Although each nomination is decided by simple majority, storable votes make it possible for the minority to win occasionally, but only when the relative importance its members assign to a nomination is higher than the relative importance assigned by the majority. Numerical simulations, motivated by a game theoretic model, show that under plausible assumptions a minority of 45 senators would be able to block between 20 and 35 percent of nominees. For most parameter values, the possibility of minority victories increases aggregate welfare.
Additional file 2 of Deletion patterns, genetic variability and protein structure of pfhrp2 and pfhrp3: implications for malaria rapid diagnostic test in Amhara region, Ethiopia
Creators: name: Molina - de la Fuente, Irene
name: Yimar, Mulat
name: García, Luz
name: González, Vicenta
name: Amor, Arancha
name: Anegagrie, Melaku
name: Benito, Agustín
name: Martínez, Javier
name: Moreno, Marta
name: Berzosa, Pedro
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2. Custom code used in Python for analysis of aminoacidic repetition types.
The Virtual Family: A Set of Anatomically Correct Whole-body Computational Models
Creators: name: Regulatory Catalog
Publisher: name: Zenodo
Year: 2023

description: The Virtual Family (VF) is a set of four highly detailed, anatomically correct whole-body models of an adult male, an adult female, and two children [1]. The four VF models are based on high-resolution magnetic resonance imaging (MRI) data of healthy volunteers. Organs and tissues of the VF 2.0 models are represented by three-dimensional, highly detailed computer-aided design (CAD) objects without self-intersections and gaps. The CAD objects allow the models to be meshed at arbitrary resolutions without loss of small features.
Role of SUMO-1 and SUMO Interacting Motifs in Rhesus TRIM5α-mediated Restriction
Creators: name: Lukic, Zana
name: Arriagada, Gloria
name: Goff, Stephen P.
name: Campbell, Edward M.
Publisher: name: Columbia University
Year: 2013
Subjects: Molecular biology
Virology

description: Background
TRIM5α is a member of the tripartite motif family of proteins that restricts retroviral infection in a species-specific manner. The restriction requires an interaction between the viral capsid lattice and the B30.2/SPRY domain of TRIM5α. Previously, we determined that two SUMO interacting motifs (SIMs) present in the B30.2/SPRY domain of human TRIM5α (huTRIM5α) were important for the restriction of N-tropic Murine Leukemia Virus. Here, we examined whether SUMO expression and the SIM1 and SIM2 motifs in rhesus monkey TRIM5α (rhTRIM5α) are similarly important for Human Immunodeficiency Type 1 (HIV-) restriction.

Results
We found that mutation of SIM1 and SIM2 of rhTRIM5α abolished the restriction of HIV-1 virus. Further, knockdown of SUMO-1 in rhTRIM5α expressing cells abolished restriction of HIV-1. These results may be due, in part, to the ability of SUMO-1 to stabilize rhTRIM5α protein expression, as SUMO-1 knockdown increased rhTRIM5α turnover and the mutations in SIM1 and SIM2 led to more rapid degradation than the wild type protein. The NF-κB signaling ability of rhTRIM5α was also attenuated by SUMO-1 knockdown. Finally, upon inhibition of CRM1-dependent nuclear export with Leptomycin B (LMB), wild type rhTRIM5α localized to SUMO-1 bodies in the nucleus, while the SIM1 and SIM2 mutants did not localize to SUMO-1.

Conclusions
Our results suggest that the rhTRIM5α B30.2/SPRY domain is not only important for the recognition of the HIV-1 CA, but it is also important for its association with SUMO-1 or SUMO-1 modified proteins. These interactions help to maintain TRIM5α protein levels and its nuclear localization into specific nuclear bodies.
Abundant cyanopolyynes as a probe of infall in the Serpens South cluster-forming region
Creators: name: Friesen, R. K.
name: Medeiros, L.
name: Schnee, S.
name: Bourke, T. L.
name: Di Francesco, J.
name: Gutermuth, R.
name: Myers, P. C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have detected bright HC7N J = 21-20 emission toward multiple locations in the Serpens South cluster-forming region using the K-Band Focal Plane Array at the Robert C. Byrd Green Bank Telescope. HC7N is seen primarily toward cold filamentary structures that have yet to form stars, largely avoiding the dense gas associated with small protostellar groups and the main central cluster of Serpens South. Where detected, the HC7N abundances are similar to those found in other nearby star forming regions. Toward some HC7N `clumps', we find consistent variations in the line centroids relative to NH3 (1,1) emission, as well as systematic increases in the HC7N non-thermal line widths, which we argue reveal infall motions onto dense filaments within Serpens South with minimum mass accretion rates of M ~ 2-5 M_sun Myr^-1. The relative abundance of NH3 to HC7N suggests that the HC7N is tracing gas that has been at densities n ~ 10^4 cm^-3, for timescales t < 1-2 x 10^5 yr. Since HC7N emission peaks are rarely co-located with those of either NH3 or continuum, it is likely that Serpens South is not particularly remarkable in its abundance of HC7N, but instead the serendipitous mapping of HC7N simultaneously with NH3 has allowed us to detect HC7N at low abundances in regions where it otherwise may not have been looked for. This result extends the known star-forming regions containing significant HC7N emission from typically quiescent regions, like the Taurus molecular cloud, to more complex, active environments.
description: 19 pages, 13 figures, accepted to MNRAS. Version with full resolution figures available at http://www.dunlap.utoronto.ca/~friesen/Friesen_HC7N.pdf
Proviral Silencing in Embryonic Cells is Regulated by Yin Yang 1
Creators: name: Schlesinger, Sharon
name: Lee, Andreia H.
name: Wang, Gary Zhe
name: Green, Lisa
name: Goff, Stephen P.
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Cytology
subject: Virology
subject: Genetics
subject: FOS: Biological sciences

description: Embryonic cells transcriptionally repress the expression of endogenous and exogenous retroelements. Trim28, a key player in this silencing, is known to act in a large DNA-bound complex, but the other components of the complex are not fully characterized. Here, we show that the zinc finger protein Yin Yang 1 (YY1) is one such component. YY1 binds to the long terminal repeat (LTR) region of both exogenous and endogenous retroviruses (ERVs). Deletion of the YY1-binding site from the retroviral genome leads to a major loss of silencing in embryonic cells and a coordinated loss of repressive histone marks from the proviral chromatin. Depletion of YY1 protein results in marked upregulation of expression of exogenous viruses and of selected ERVs. Finally, we report an embryonic cell-specific interaction between YY1 and Trim28. Our results suggest a major role for YY1 in the silencing of both exogenous retroviruses and ERVs in embryonic cells.
Séchage de copeaux de bois et de bagasse : comparaison expérimentale et numérique
Creators: name: Guillou, Paul
name: Marc, Olivier
name: Adelard, Laetitia
name: Madyira, Daniel
name: Akinlabi, Esther
name: Castaing-Lasvignottes, Jean
Publisher: name: Société Française de Thermique
Year: 2020
Subjects: Expérimentale
Modélisation
Milieux Poreux
Volumes finis

description: En 2017, la production d'électricité à partir de la bagasse, biomasse locale à La Réunion issue de la production de sucre, était de 261 GWh, soit 9 \% du mix électrique. En 2019, le gisement de déchets verts et bois de palettes à la Réunion a été estimé à 89212 tonnes par an. De façon générale, les déchets issus de la biomasse représentent une ressource importante pouvant faire l'objet de diverses valorisations comme combustible, isolant thermique/hydrique ou paillage agricole par exemple. Cependant, ces matériaux sont assez humides et un séchage préalable améliorerait de façon significative leur potentiel d'utilisation. Pour cela, il est nécessaire d'étudier les phénomènes couplés de transferts de masse et de chaleur à la surface et au sein du matériau. Pour aborder cette problématique, nous avons choisi de coupler l'approche expérimentale et numérique, appliqué à deux biomasses locales : des copeaux de bois (Cryptomeria japonica) et de la bagasse. La première approche nous conduit à placer les matériaux dans un cylindre grillagé et fabriqué à base de fibre de verre d'une capacité de 7,6 litres. Au centre de celui-ci, une sonde enregistreuse de température et d'humidité relative est installée. L'ensemble est placé dans une étuve dont la température de consigne est fixée à 50$^{\circ}$C. Le lit de matériau est régulièrement pesé afin d'obtenir le suivi de la teneur en eau globale. La deuxième approche consiste à modéliser le milieu comme composé de 3 phases (solide, liquide et gazeuse) sur lesquelles sont établies les équations de conservation de masse et d'énergie. Les lois de transferts concernent la conduction de chaleur dans la phase solide et la diffusion moléculaire dans la phase gazeuse. L'évaporation de la phase liquide vers la phase gazeuse est prise en compte ainsi que l'équilibre liquide/vapeur par l'équation de saturation de l'eau tandis que l'équilibre solide/gaz est donné par le modèle d'isotherme de sorption de Smith. Ce système d'équations est discrétisé selon la méthode des volumes finis, permettant de connaitre la distribution spatiale des variables. Les résultats expérimentaux et numériques sont comparés en termes de température et d'humidité relative interne ainsi que pour la teneur en eau de la biomasse. Globalement, les temps de séchages sont compris entre 3 et 6 jours pour des masses humides de biomasses comprises entre 0,5 kg pour les copeaux de bois et 1 kg pour la bagasse. Les coefficients de transfert choisis permettent d'obtenir des résultats numériques en adéquation avec ceux obtenus expérimentalement pour les deux biomasses étudiées durant la totalité du processus de séchage.
title: Ferromagnetic Mn–Al–C L1₀ Formation by Electric Current Assisted Annealing
Creators: name: Maccari, Fernando
name: Zintler, Alexander
name: Brede, Thomas
name: Radulov, Iliya A.
name: Skokov, Konstantin P.
name: Molina-Luna, Leopoldo
name: Gutfleisch, Oliver
Publisher: name: Wiley-VCH
Year: 2023

description: The ferromagnetic Mn–Al–C τ‐phase (L1₀ tetragonal structure) shows intrinsic potential to be developed as a permanent magnet; however, this phase is metastable and is easily decomposed to nonmagnetic stable phases, affecting negatively the magnetic properties. Giving the necessity to careful control of its synthesis, the use of a novel approach is investigated using electric current–assisted annealing to obtain pure τ‐phase samples. The temperature and electrical resistance of the samples are monitored during annealing and it is shown that the change in resistance can be used to probe the phase transformation. Upon increase of electric current density, the required temperature for the ferromagnetic phase formation is reduced, reaching a maximum shift of 140 °C at 45 A mm⁻². Even though this noticeable shift is achieved, the magnetic properties are not affected showing coercivity of 0.13 T and magnetization of 90 Am² kg⁻¹, independently from the electric current density used during annealing. Microstructural investigation reveals the nucleation of the τ‐phase at the grain boundaries of the parent ε‐phase. In addition, the existence of twin boundaries upon nucleation and growth of the metastable phase for all evaluated annealing conditions is observed, resulting in similar extrinsic magnetic properties.
Amélioration du confort thermique des bâtiments par utilisation de l'inertie thermique des composites argile-paille de chiendent
Creators: name: Kiki, Gratien Jesugo Dieudonné
name: Houngan, Comlan Aristide
name: Kouchade, Clément
name: Djossou, Armand
name: Andre, Phillipe
name: Vianou, Antoine
Publisher: name: Société Française de Thermique
Year: 2020
Subjects: Argile – paille de chiendent
inertie thermique
confort thermique
efficacité énergétique.

description: Le secteur des bâtiments représente le deuxième plus gros consommateur d'énergie au monde. Cette importante consommation se justifie par l'usage quasi systématique des systèmes CVC (Chauffage, Ventilation et Climatisation) pour assurer le confort thermique des occupants. Pour atteindre les objectifs de développement durable, des mesures passives d'amélioration de l'efficacité énergétique des bâtiments doivent aussi être prises en compte. L'utilisation des éco-matériaux dans l'enveloppe du bâtiment représente une solution efficace à ce problème. Le but de cette recherche est d'évaluer l'influence de l'inertie thermique du composite argile – paille de chiendent sur le confort thermique des bâtiments. Ainsi, des échantillons en argile comprimée contenant différentes teneurs en pailles de chiendent (0 à 4\%) ont été fabriqués et leurs propriétés thermiques ont été déterminées par la méthode du ruban chaud. Les résultats montrent une diminution progressive de l'effusivité et de la conductivité thermique avec l'évolution de la teneur en paille de chiendent. Pour une teneur en paille de chiendent de 4\%, on note une baisse de 30\% de la conductivité thermique et de 11\% de l'effusivité thermique. Les déphasages de flux de chaleur obtenus avec ces composites varient entre 9h et 13h. Ces performances ont ensuite été évaluées à travers des simulations sous TRNSYS sur un bâtiment de bureau situé dans la ville de Cotonou au Benin. Une amélioration d'environ 2$^{\circ}$C de la température intérieure des locaux a été observée après utilisation des composites argile – paille de chiendent dans l'enveloppe du bâtiment.
Truman’s Decision to Use the Atomic Bomb Against Japan in WWII
Creators: name: Blake, Danielle J.
Publisher: name: Columbia University
Year: 2014
Subjects: History

description: This paper compares Harry Truman's own accounts of the decisions made in 1945 to the accounts of other key players in the decisions surrounding the use of atomic weapons, particularly Secretary of War Henry L Stimson. The paper reveals that Truman had little involvement in choosing to use the weapons, but that political gains were nonetheless achieved.
title: Wie ein Fleck zurückblieb
title: Mihailović, Dragoslav. 2018. Wie ein Fleck zurückblieb. Erzählungen – Leben. Aus dem Serbischen von Robert Hodel. Leipzig: Leipziger Literaturverlag (Bibliothek Ost-Südost neue Prosa), S. 387. ISBN: 978-3-86660-229–8.
titleType: Subtitle
Creators: name: Cidilko, Vesna
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: 491 Ostindoeuropäische und keltische Sprachen

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Additional file 3 of Deletion patterns, genetic variability and protein structure of pfhrp2 and pfhrp3: implications for malaria rapid diagnostic test in Amhara region, Ethiopia
Creators: name: Molina - de la Fuente, Irene
name: Yimar, Mulat
name: García, Luz
name: González, Vicenta
name: Amor, Arancha
name: Anegagrie, Melaku
name: Benito, Agustín
name: Martínez, Javier
name: Moreno, Marta
name: Berzosa, Pedro
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Table S2. Frequencies of deletion patterns of exon 2 of pfhrp2 and pfhrp3 genes by location.
The high-redshift star formation rate derived from GRBs: possible origin and cosmic reionization
Creators: name: Wang, F. Y.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The collapsar model of long gamma-ray bursts (GRBs) indicates that they may trace the star formation history. So long GRBs may be a useful tool of measuring the high-redshift star formation rate (SFR). The collapsar model explains GRB formation via the collapse of a rapidly rotating massive star with $M> 30M_\odot$ into a black hole, which may imply a decrease of SFR at high redshift. However, we find that the \emph{Swift} GRBs during 2005-2012 are biased tracing the SFR, including a factor about $(1+z)^{0.5}$, which is in agreement with recent results. After taking this factor, the SFR derived from GRBs does not show steep drop up to $z\sim 9.4$. We consider the GRBs produced by rapidly rotating metal-poor stars with low masses to explain the high-redshift GRB rate excess. The chemically homogeneous evolution scenario (CHES) of rapidly rotating stars with mass larger than $12M_\odot$ is recognized as a promising path towards collapsars in connection with long GRBs. Our results indicate that the stars in the mass range $12M_\odot
description: 7 pages, 6 figures, A&A published
title: 3D‐printing with steel on thin sheets for application in free form façade construction: welding process development and material properties
Creators: name: Grebner, Philipp
name: Lange, Jörg
Publisher: name: Ernst & Sohn, a Wiley brand
Year: 2023

description: Wire and Arc Additive Manufacturing (WAAM) became a significant research field in structural engineering over the past years. It offers the opportunity to apply material fast and precisely, following the load path, inducing effective material consumption. Considering free‐formed sheet‐metal façades, to date large thicknesses are necessary to maintain the final shape and load‐bearing capacity that however causes high material consumption and costs during the construction processes. Hence, WAAM could be an opportunity to reduce the amount of mild steel used for free‐form façades. As part of a research project at TU Darmstadt, 1 mm thick free‐form sheet‐metal façades elements have been manufactured using WAAM. Due to precisely welded lattice structures, placed on the backside of the metal sheet, the reinforcement will be ensured. Wide studies on welding parameters focused on a stable process without damaging the later frontside of the façade panel and on process optimization. In addition, material properties of the welding material have been determined to check its usability in façade construction.
Eco-Stock® - Solution de stockage de la chaleur compétitive : Etude de la robustesse
Creators: name: Touzo, Aubin
name: Olives, Régis
name: Pham Minh, Doan
name: Dejean, Guilhem
name: El Hafi, Mouna
name: Py, Xavier
Publisher: name: Société Française de Thermique
Year: 2020
Subjects: stockage thermique
Eco-Stock®
régénérateur
robustesse
chaleur fatale

description: L'ADEME estime que 25 à 60\% de la chaleur consommée par les fours est perdue sous forme de fumées haute température. L'émergence de solutions de valorisation de la chaleur est nécessaire pour améliorer l'efficacité énergétique des procédés industriels, accroître la compétitivité industrielle et réduire les émissions de gaz à effets de serre. La valorisation de cette énergie perdue, appelée chaleur « fatale » est pourtant limitée à cause de fortes intermittences des gisements et de complexité en propriétés et composition. L'émergence d'une solution efficace à bas coût est donc nécessaire. La société Eco-Tech Ceram, spécialisée dans la valorisation énergétique des chaleurs fatales et le stockage thermique, a conçu l'Eco-Stock®. Il s'agit d'un régénérateur containerisé stockant jusqu'à 2 MWh de chaleur à 600$^{\circ}$C. La chaleur est stockée dans le régénérateur grâce à 16 tonnes de céramique réfractaire, en contact direct avec le fluide caloporteur (air, fumées) pour le stockage et le déstockage. La capacité de ce régénérateur à s'adapter à la variabilité du gisement a été démontrée en le soumettant à de fortes variations de températures et de débits en charge et en décharge. Le stockage thermique peut en effet être utilisé comme un filtre thermique afin de pouvoir lisser un profil de chaleur fatale donné. L'analyse numérique du stockage thermique repose sur un modèle à 3 températures : une pour la céramique de stockage (solide de stockage), une pour l'air (fluide de transfert), et la dernière pour la paroi. Ces équations sont couplées et modélisent les échanges convectifs, conductifs et radiatifs à l'aide de corrélations empiriques de la littérature. Les équations sont résolues par différences finies en une dimension, afin de modéliser la progression du front de chaleur au sein du stockage. Ce modèle a été validé lors d'essais standards, à température et débit de charge constants. Ce modèle peut aussi modéliser le comportement d'un régénérateur soumis à une variabilité d'un gisement de chaleur fatale. La robustesse du régénérateur soumis à de forte variabilité de gisement, ainsi que sa pertinence vis-à-vis de la valorisation de chaleur fatale sont démontrées. Ce type de régénérateur peut aussi être adapté aux centrales solaires à concentration en remplacement des systèmes de cuves à sels fondus, ou encore intégré dans le stockage de l'électricité par compression adiabatique de l'air.
HTR Kraken model based on BnF Fr. 412 'Li Seint Confessor'
Creators: name: Ariane, Pinche
name: Thibault, Clérice
name: Jean-Baptiste, Camps
Publisher: name: Zenodo
Year: 2020

description: Kraken model based on Pinche, A., Edition nativement numérique du recueil hagiographique ‘Li Seint Confessor’ de Wauchier de Denain d’après le manuscrit 412 de la Bibliothèque nationale de France, from http://www.theses.fr/s150996
Embryonic Lethality in Mice Homozygous for a Targeted Disruption of the N-myc Gene
Creators: name: Charron, Jean
name: Malynn, Barbara A.
name: Fisher, Peter
name: Stewart, Valerie
name: Jeannotte, Lucie
name: Goff, Stephen P.
name: Robertson, Elizabeth J.
name: Alt, Frederick W.
Publisher: name: Columbia University
Year: 1992
Subjects: Cytology
Molecular biology
Developmental biology

description: The N-myc gene encodes a putative transcription factor that is thought to function in the regulation of gene expression during cell differentiation and/or growth. To examine the role of N-myc during development, we have used targeted mutagenesis in embryonic stem cells to produce a mouse line that carries an N-myc null allele. Mice homozygous for the mutation died between 10.5 and 12.5 days of gestation. Histological analysis of mutant embryos revealed that organs and tissues expected at these stages of development were present. However, multiple defects were observed, primarily in tissues and organs that normally express N-myc. In particular, mutant hearts were underdeveloped, often retaining the S-shape more typical of 9-day-old embryos. In addition, cranial and spinal ganglia were reduced in size and/or cellularity. Most of the noted defects were more consistent with a role of N-myc in proliferation of precursor populations than with a block in differentiation per se, at least at these early stages. These results demonstrate that N-myc plays an essential role during development and clearly confirm that N-myc has a physiological function that is distinct from that of the other myc-family genes.