cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Suzaku Studies of Wide-Band Spectral Variability of the Bright Type I Seyfert Galaxy Markarian 509
Creators: name: Noda, Hirofumi
name: Makishima, Kazuo
name: Yamada, Shin'ya
name: Torii, Shunsuke
name: Sakurai, Soki
name: Nakazawa, Kazuhiro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Type I Seyfert galaxy Markarian 509 was observed with Suzaku in 2010 November, for a gross time span of 2.2 days. Timing and spectral properties of the 0.5-45 keV X-rays, detected with the XIS and HXD, consistently revealed the presence of a soft spectral component that remained constant while the total X- ray intensity varied by \pm10%. This stable soft component, found in the 0.5-3.0 keV range, was interpreted as a result of thermal Comptonization in a corona with a temperature of ~ 0.5 keV and an optical depth of ~ 18. The time-avearged 0.5-45 keV Suzaku spectrum was reproduced successfully, as a combination of this thermal Comptonization component, a harder power-law of photon index ~ 1.8, moderate reflection, and an iron K-emission line. By analyzing four archival Suzaku datasets of the same object obtained in 2006, the thermal Comptonization component, which was stable during the 2.2 day pointing in 2010, was found to vary on time scales of a few weeks, independently of the power-law component. Implications of these results are discussed in terms of the "multi-zone Comptonization" view, obtained with Suzaku from the black hole binary Cygnus X-1.
description: 12 pages, 9 figures
“Diversity within diversity” - exploring connections between community, participation and citizenship
Creators: name: Ferreira, Pedro D.
name: Coimbra, Joaquim L.
name: Menezes, Isabel
Publisher: name: sowi-online e.V., Bielefeld
Year: 2012

description: Even if recently the notions of citizenship and community have become buzz words of very positive connotation, significant tensions underlie any of them: between homogeneity and difference, belonging and diversity, inclusion and exclusion and, more recently, between freedom and security. Real communities are places of cooperation and mutual recognition as much as they are places of inevitable conflict, social control and exclusion. Following an ecological and contextual perspective, and a relational definition of community, concepts such as sense of community and social capital are explored. An analysis of citizen’s participation in their communities illustrates significant dimensions of participation: power, dialogue, initiative, formality, pluralism and time. The discussion considers how these dimensions might contribute to making community organizations turn into 'schools of democracy' (de Tocqueville 2000), and illustrates this potential with young migrants, as long as the diversity of diverse migrant groups is not only recognized but furthered.
description: JSSE - Journal of Social Science Education, 3-2012: Citizenship and Community
900 Jahre Schloß Stetten
Creators: name: Leibrecht, Thomas
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 39 Nr. 2 (1998): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Benefit or burden? How English schools responded to the duty to promote community cohesion
Creators: name: Rowe, Don
name: Horsley, Nicola
name: Breslin, Tony
name: Thorpe, Tony
Publisher: name: sowi-online e.V., Bielefeld
Year: 2012

description: This paper discusses results from a small scale qualitative study of how primary and secondary schools in three English local authorities responded to the introduction and subsequent inspection of a legal duty to promote community cohesion, following a series of ‘race’ riots in 2001 and the  London bombings of 2005. The policy itself is seen as reflecting wider discourse and is shown as shifting in focus during the period it was officially inspected between 2008 and 2011. Schools responded differentially to the duty and its inspection, with those in more multi-cultural areas responding with higher degrees of confidence than those in mono-ethnic areas. Some policy ‘slippage’ is seen to occur in the way schools re-framed the duty. Over time, most schools came to identify the curriculum and the school’s ethos as the most important weapons in their armoury. Teachers embraced the new duty with different degrees of enthusiasm – for some it confirmed the importance of holistic approaches to education which they felt had been sidelined in recent years, whilst other showed various forms of resistance. Teachers encountered some subtle and challenging professional dilemmas in the course of discharging the duty. Overall, the respondents in this study felt that the imposition of the duty and its inspection had been more of a benefit than a burden.
description: JSSE - Journal of Social Science Education, 3-2012: Citizenship and Community
Supplemental Data from Non-lethal sampling for assessment of mitochondrial function does not affect metabolic rate and swimming performance
Creators: name: Elisa, Thoral
name: Lauréliane, Dargère
name: Ione, Medina-Suárez
name: Angéline, Clair
name: Laetitia, Averty
name: Justine, Sigaud
name: Anne, Morales
name: Karine, Salin
name: Loïc, Teulier
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 310199
subject: Biochemistry and cell biology not elsewhere classified
classificationCode: 310908
subject: Animal physiology - biophysics
classificationCode: 310909
subject: Animal physiology - cell
classificationCode: 310910
subject: Animal physiology - systems

description: Description of the experimental protocol with additional results
Realisierungswettberwerb Informations-, Leit- und Orientierungssystem: Wegweisung ohne Schilder
Creators: name: Dörries, Cornelia
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 44 Nr. 4 (2003): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Orexin neuron activity in mating mice - a pilot study
Creators: name: Burdakov, Denis
name: Karnani, Mahesh M
Publisher: name: The Francis Crick Institute
Year: 2021
Subjects: subject: Neurosciences
subject: FOS: Clinical medicine
subject: Imaging
subject: Microfabrication & Bioengineering
subject: Ecology,Evolution & Ethology
subject: Metabolism
subject: Computational & Systems Biology

description: Mating behaviours affect hypothalamic orexin/hypocretin neurons and vice versa. However, activity of orexin neurons has not been recorded during mating before. We report an anecdotal dataset of freely-moving miniature microscope recordings of orexin neuron activity during mating behaviours, as well as an oral sexual encounter previously undocumented in mice. Across the orexin neuron population in the male, firing rates were maximally diverse during ejaculation, similarly diverse though weaker during intromission, and inverse to this during anterior thrusting. In the female mouse, orexin neurons tended to decrease firing during intromission after a transient increase. We provide this brief dataset for re-use, to enable further studies of these rare behaviours with challenging surgical preparations.
Abundance of real lines on real projective hypersurfaces
Creators: name: Finashin, S.
name: Kharlamov, V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 14N15, 14P25, 14J80

description: We show that a generic real projective n-dimensional hypersurface of degree 2n-1 contains "many" real lines, namely, not less than (2n-1)!!, which is approximately the square root of the number of complex lines. This estimate is based on the interpretation of a suitable signed count of the lines as the Euler number of an appropriate bundle.
description: 5 pages; http://imrn.oxfordjournals.org/cgi/content/abstract/rns135?
Gap opening in the zeroth Landau level in gapped graphene: Pseudo-Zeeman splitting in an angular magnetic field
Creators: name: Tahir, M.
name: Sabeeh, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a theoretical study of gap opening in the zeroth Landau level in gapped graphene as a result of pseudo-Zeeman interaction. The applied magnetic field couples with the valley pseudospin degree of freedom of the charge carriers leading to the pseudo-Zeeman interaction. To investigate its role in transport at the Charge Neutrality Point (CNP), we study the integer quantum Hall effect (QHE) in gapped graphene in an angular magnetic field in the presence of pseudo-Zeeman interaction. Analytical expressions are derived for the Hall conductivity using Kubo-Greenwood formula. We also determine the longitudinal conductivity for elastic impurity scattering in the first Born approximation. We show that pseudo-Zeeman splitting leads to a minimum in the collisional conductivity at high magnetic fields and a zero plateau in the Hall conductivity. Evidence for activated transport at CNP is found from the temperature dependence of the collisional conductivity.
description: 20 pages, 4 figures, Accepted in J. Phys. Condensed matter
Novel substrates for Helium adsorption: Graphane and Graphene-Fluoride
Creators: name: Reatto, L.
name: Nava, M.
name: Galli, D. E.
name: Billman, C.
name: Sofo, J. O.
name: Cole, M. W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The discovery of fullerenes has stimulated extensive exploration of the resulting behavior of adsorbed films. Our study addresses the planar substrates graphene-fluoride (GF) and graphane (GH) in comparison to graphene. We present initial results concerning the potential energy, energy bands and low density behavior of 4He and 3He films on such different surfaces. For example, while graphene presents an adsorption potential that is qualitatively similar to that on graphite, GF and GH yield potentials with different symmetry, a number of adsorption sites double that on graphene/graphite and a larger corrugation for the adatom. In the case of GF, the lowest energy band width is similar to that on graphite but the He atom has a significantly larger effective mass and the adsorption energy is about three time that on graphite. Implications concerning the monolayer phase diagram of 4He are explored with the exact path integral ground state method. A commensurate ordered state similar to the sqrt{3} x sqrt{3} R30^o state on graphite is found the be unstable both on GF and on GH. The ground states of submonolayer 4He on both GF and GH are superfluids with a Bose Einstein condensate fraction of about 10%.
description: 6 pages, 3 figures, LT26 proceedings, accepted for publication in Journal of Physics: Conference Series
What we don't know about time
Creators: name: Balasubramanian, Vijay
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: String theory has transformed our understanding of geometry, topology and spacetime. Thus, for this special issue of Foundations of Physics commemorating "Forty Years of String Theory", it seems appropriate to step back and ask what we do not understand. As I will discuss, time remains the least understood concept in physical theory. While we have made significant progress in understanding space, our understanding of time has not progressed much beyond the level of a century ago when Einstein introduced the idea of space-time as a combined entity. Thus, I will raise a series of open questions about time, and will review some of the progress that has been made as a roadmap for the future.
description: 15 pages; Essay for a special issue of Foundations of Physics commemorating "Forty years of string theory"
The complex ecology of young people’s community engagement and the call for civic pedagogues
Creators: name: Warwick, Paul
name: Cremin, Hilary
name: Harrison, Tom
name: Mason, Carolynne
Publisher: name: sowi-online e.V., Bielefeld
Year: 2012

description: This paper focuses upon the community engagement of young people growing up in socio-economically disadvantaged areas and the creation of apt civic learning spaces. It is in direct response to public policy within the UK, as in many other democratic countries, giving continued attention to how young people’s active citizenship can be best supported.  As a consequence of processes of globalisation, social change and technological advancement it is being increasingly recognised that young citizens face unprecedented challenges in the 21st century. At the same time young people growing up within areas of socio-economic disadvantage are commonly identified as being most at risk of social exclusion and discouragement with regard to their civic participation.

This paper draws from the EngagED research project, a two-year study based in England that used a mixed methods approach to explore the civic action and learning of young people living in both inner city and rural areas of socio-economic disadvantage. It presents an eco-systemic model of the host of factors and agencies that influence young people’s civic identity and patterns of community engagement. It outlines two new civic learning spaces that were created in response to these complex ecologies and from these experiments in ‘pre-figurative practice’ proposes a set of key principles for the effective civic pedagogue. This radical notion of the civic educator moves away from educational strategies that seek to ‘transform’ young people into good future citizens, towards finding personalised ways of supporting young people ‘as’ citizens.
description: JSSE - Journal of Social Science Education, 3-2012: Citizenship and Community
Probing the topological exciton condensate via Coulomb drag
Creators: name: Mink, M. P.
name: Stoof, H. T. C.
name: Duine, R. A.
name: Polini, Marco
name: Vignale, G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The onset of exciton condensation in a topological insulator thin film was recently predicted. We calculate the critical temperature for this transition, taking into account screening effects. Furthermore, we show that the proximity to this transition can be probed by measuring the Coulomb drag resistivity between the surfaces of the thin film as a function of temperature. This resistivity shows an upturn upon approaching the exciton-condensed state.
description: 4 pages, 3 figures
AGORAge: Caring community toolkit
Creators: name: Riccò, Isabella
name: De Stefani, Adele
name: Anzil, Verónica
name: Anleu-Hernández, Claudia
name: Bodoque-Puerta, Yolanda
name: Campanera, Mireia
Publisher: name: Zenodo
Year: 2023
Subjects: subject: Citizen Science
subject: COESO project
subject: Nursing
subject: FOS: Health sciences
subject: AGORAge

description: The AGORAge Toolkit is the outcome of the one-year journey conducted within the citizen science-inspired project AGORAge: Ageing in a Caring Community. It is addressed to all those who are interested in implementing initiatives to promote the creation of caring communities in which the social inclusion of older people is given special consideration. This toolkit can serve researchers and professionals dealing with social intervention as well as policymakers, service providers, and municipalities. Its two main objectives are to describe diagnostic and intervention techniques through the specific experience of the AGORAge project, and to provide further resources (good practices, toolkits, and recommendations) to foster the creation of caring communities. The usefulness and suitability of these tools will depend on each specific project, the context in which they are used, and the user, but what we believe is crucial in all cases is familiarity with the starting point, that is, understanding the needs and requirements of the people involved. This reality can only be understood by making contact with the target group from the beginning and involving its members as much as possible in each phase of the research. We invite you to browse the toolkit and explore the concepts, methods, techniques, examples, and resources to familiarise yourself with each of the tools and evaluate their applicability to your project and context.
Thermally driven escape from Pluto's atmosphere: A combined fluid/kinetic model
Creators: name: Tucker, O. J.
name: Erwin, J. T.
name: Deighan, J. I.
name: Volkov, A. N.
name: Johnson, R. E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: A combined fluid/kinetic model is developed to calculate thermally driven escape of N2 from Pluto's atmosphere for two solar heating conditions: no heating above 1450 km and solar minimum heating conditions. In the combined model, one-dimensional fluid equations are applied for the dense part of the atmosphere, while the exobase region is described by a kinetic model and calculated by the direct simulation Monte Carlo method. Fluid and kinetic parts of the model are iteratively solved in order to maintain constant total mass and energy fluxes through the simulation region. Although the atmosphere was found to be highly extended, with an exobase altitude at ~6000 km at solar minimum, the outflow remained subsonic and the escape rate was within a factor of two of the Jeans rate for the exobase temperatures determined. This picture is drastically different from recent predictions obtained solely using a fluid model which, in itself, requires assumptions about atmospheric density, flow velocity and energy flux carried away by escaping molecules at infinity. Gas temperature, density, velocity and heat flux versus radial distance are consistent between the hydrodynamic and kinetic model up to the exobase, only when the energy flux across the lower boundary and escape rate used to solve the hydrodynamic equations is obtained from the kinetic model. This limits the applicability of fluid models to atmospheric escape problems. Finally, the recent discovery of CO at high altitudes, the effect of Charon and the conditions at the New Horizon encounter are briefly considered.
An ISP Level Solution to Combat DDoS Attacks using Combined Statistical Based Approach
Creators: name: Gupta, B. B.
name: Misra, Manoj
name: Joshi, R. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Disruption from service caused by DDoS attacks is an immense threat to Internet today. These attacks can disrupt the availability of Internet services completely, by eating either computational or communication resources through sheer volume of packets sent from distributed locations in a coordinated manner or graceful degradation of network performance by sending attack traffic at low rate. In this paper, we describe a novel framework that deals with the detection of variety of DDoS attacks by monitoring propagation of abrupt traffic changes inside ISP Domain and then characterizes flows that carry attack traffic. Two statistical metrics namely, Volume and Flow are used as parameters to detect DDoS attacks. Effectiveness of an anomaly based detection and characterization system highly depends on accuracy of threshold value settings. Inaccurate threshold values cause a large number of false positives and negatives. Therefore, in our scheme, Six-Sigma and varying tolerance factor methods are used to identify threshold values accurately and dynamically for various statistical metrics. NS-2 network simulator on Linux platform is used as simulation testbed to validate effectiveness of proposed approach. Different attack scenarios are implemented by varying total number of zombie machines and at different attack strengths. The comparison with volume-based approach clearly indicates the supremacy of our proposed system.
Community and citizenship in post-disaster Japan
Creators: name: Parmenter, Lynne
Publisher: name: sowi-online e.V., Bielefeld
Year: 2012

description: In March 2011, a triple earthquake-tsunami-nuclear disaster rocked north-eastern Japan. In this article, the impact of these three disasters on schools, teachers and children will be analysed, with a particular focus on the role of teachers in saving lives and leading communities, and the role of schools as sites and agents of community and citizenship in the disaster situation. The article is structured around four themes, namely, the role of school leaders and teachers, the role of schools as sites of community, changing media representations of children and communities in the wider national context, and the birth of global citizenship as a meaningful concept. Primary data from visits to schools in Miyagi Prefecture and Fukushima Prefecture in Japan in July 2011 and December 2011 are combined with analysis of secondary sources written in Japanese to paint a clear picture of the different roles served by teachers and schools at different points in time during and after the disasters. This provides insights not only into post-disaster communities, but also into the role of teachers and function of schools as agents and sites of community and citizenship in Japanese society.
description: JSSE - Journal of Social Science Education, 3-2012: Citizenship and Community
title: Natural resources and contested sovereignty: the case of the Kurdistan region in Iraq
Creators: name: Azeez, Shwan Jamal
Publisher: name: University of Kent
Year: 2022

description: This research sets out to investigate the links between natural resources and sovereignty. The existing scholarly literature shows that the links between natural resources and various dimensions of sovereignty have been largely overlooked. This thesis uses the concept of de facto statehood as its primary theoretical framework. This research employs a single-case study of the Kurdish de facto state to examine the oil sovereignty nexus between 2003 and 2019. It argues that the conflict over oil resources between the KRG and the Iraqi government is very difficult to resolve because it revolves around sovereignty rather than just financial interests. The findings of this research suggest that natural resources have a paradoxical impact on the sovereignty of the KRG. On the one hand, the KRG's sovereignty was strengthened by the high oil price between 2003 and 2013. On the other hand, the KRG's domestic and Westphalian sovereignty has been undermined from 2014 to 2019 by the low oil price in conjunction with other factors. While oil is crucial for the survival of the Kurdish de facto state and its engagement with foreign actors, it does not lead to the creation of a sovereign Kurdish state. The findings of this research also have significant implications for the direction of future research as they focus on issues such as competition over natural resources, contested sovereignty and natural re-sources as a foreign policy instrument, and also issues that are essential to understanding how sovereignty evolves.
The Financial Crisis - An Ideal Teaching Moment
Creators: name: Mittelstaedt, Ewald
name: Lutz, Roman
name: Wiepcke, Claudia
Publisher: name: sowi-online e.V., Bielefeld
Year: 2012

description: Does after the crisis mean before the crisis? Financial crises are part of the economic cycle and therefore not only absolutely normal but under certain circumstances beneficial. Is this also true for the ongoing financial crisis? It might be too soon to draw final conclusions, but financial crises show a great potential to encourage learning from the past and to foster socio-economic education. That’s not meant as a belittlement of the financial crisis, but should sharpen the mind to notice a primary dilemma of our economic system: Even though increasing credit facilities contributed to the economic prosperity during the last decades, the development of savings and debts should be in balance with the long-term productive capacity of society, economy and environment. The authors will review certain aspects and causes of the financial crisis under social und environmental constraints and will discuss possible long-term paths of development from an economic perspective. Following this, didactical implications will be considered and feasible learning content will be discussed.
description: JSSE - Journal of Social Science Education, 2-2013: Crisis and Economic Education in Europe
Immortalized Human Cells
Creators: name: Cole, Hannah
Publisher: name: INFN Open Access Repository
Year: 2023

description: Generate immortalised cell lines by isolation from a naturally occurring cancer, or introduction of a viral gene that partially deregulates the cell cycle (e.g., the adenovirus type 5 E1 gene was used to immortalise the HEK 293 cell line; the Epstein-Barr virus can immortalise B lymphocytes by infection.) Creative Bioarray can provide you immortalized human cell lines with an integrated platform for meeting the needs for virtually any relevant research project.
The Impact of Economic Crises on the Perception and Knowledge Level of Students Regarding Economic and Financial Concepts
Creators: name: Pliakis, Iraklis
name: Digkas, Christos
name: Bousiou-Makridou, Despoina
name: Tsopoglou, Stavros
Publisher: name: sowi-online e.V., Bielefeld
Year: 2012

description: Economic crisis, during the past two years, has an impact on Greek students of 17 years old. Elements of the crisis have intruded on their everyday life. Economic and financial concepts constitute part of their attempt to understand the world they live in and as a result affect their educational level. This paper is an exploratory attempt to study the effects of economic crisis in the economics knowledge of Greek students using a sample of 62 Senior High School (lyceum) students. Data analyzed consists of a 30 question exam based on the Test of Economic Literacy (TEL) developed by the National Council on Economic Education (NCEE) and a questionnaire which was given at the end of the exam. The survey was conducted in two different periods in 2010-2011 & 2011-2012. Results indicate that students level of knowledge of economic and financial concepts, concerning the crisis, is considerably high compared with quantitative results from the U.S. national norming sample of the TEL.
description: JSSE - Journal of Social Science Education, 2-2013: Crisis and Economic Education in Europe
Statics of polymer droplets on deformable surfaces
Creators: name: Léonforte, Fabien
name: Müller, Marcus
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The equilibrium properties of polymer droplets on a soft deformable surface are investigated by molecular dynamics simulations of a bead-spring model. The surface consists of a polymer brush with irreversibly end-tethered linear homopolymer chains onto a flat solid substrate. We tune the softness of the surface by varying the grafting density. Droplets are comprised of bead-spring polymers of various chain lengths. First, both systems, brush and polymer liquid, are studied independently in order to determine their static and dynamic properties. In particular, using a numerical implementation of an AFM experiment, we measure the shear modulus of the brush surface and compare the results to theoretical predictions. Then, we study the wetting behavior of polymer droplets with different contact angles and on substrates that differ in softness. Density profiles reveal, under certain conditions, the formation of a wetting ridge beneath the three-phase contact line. Cap-shaped droplets and cylindrical droplets are also compared to estimate the effect of the line tension with respect to the droplet size. Finally, the results of the simulations are compared to a phenomenological free-energy calculation that accounts for the surface tensions and the compliance of the soft substrate. Depending on the surface/drop compatibility, surface softness and drop size, a transition between two regimes is observed: from one where the drop surface energy balances the adhesion with the surface, which is the classical Young-Dupré wetting regime, to another one where a coupling occurs between adhesion, droplet and surface elastic energies.
description: 13 pages, 11 figures
Renard_et_al_FigS2.docx from DNA methylation extends lifespan in the bumblebee Bombus terrestris
Creators: name: Renard, Thibaut
name: Martinet, Baptiste
name: De Souza Araujo, Natalia
name: Aron, Serge
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 3105
subject: Genetics
subject: FOS: Biological sciences
classificationCode: 310803
subject: Plant cell and molecular biology
classificationCode: 310902
subject: Animal cell and molecular biology
classificationCode: 310908
subject: Animal physiology - biophysics
classificationCode: 310909
subject: Animal physiology - cell
classificationCode: 310910
subject: Animal physiology - systems

description: Epigenetic alterations are a primary hallmark of ageing. In mammals, age-related epigenetic changes alter gene expression profiles, disrupt cellular homeostasis and physiological functions and, therefore, promote ageing. It remains unclear whether ageing is also driven by epigenetic mechanisms in invertebrates. Here, we used a pharmacological hypomethylating agent (RG108) to evaluate the effects of DNA methylation (DNAme) on lifespan in an insect—the bumble bee Bombus terrestris. RG108 extended mean lifespan by 43% and induced the differential methylation of genes involved in hallmarks of ageing, including DNA damage repair and chromatin organization. Furthermore, the longevity gene sirt1 was overexpressed following the treatment. Functional experiments demonstrated that SIRT1 protein activity was positively associated with lifespan. Overall, our study indicates that epigenetic mechanisms are conserved regulators of lifespan in both vertebrates and invertebrates and provides new insights into how DNAme is involved in the ageing process in insects.
Making Sense of the Financial Crisis in Economic Education: An Analysis of the Upper Secondary School Social Studies Teaching in Finland in the 2010’s
Creators: name: Lofstrom, Jan
name: Van Den Berg, Marko
Publisher: name: sowi-online e.V., Bielefeld
Year: 2012

description: The current financial-economic crisis has actualized important issues regarding the dynamics of the economic system, the relations between economy and politics, and the notions of good society. Thus the question of how economic education in school can support students’ understanding of the crisis is relevant to pose. This article asks what are the strengths and weaknesses, and also the promises and challenges, in the Finnish upper secondary school economic education, concerning teaching about the crisis? The article analyses the core curriculum for upper secondary school economic education in Finland, the available upper secondary school economy textbooks, and a selection of students’ social studies exam papers in the matriculation examination in spring 2010. The focus of the analysis is on how the current financial-economic crisis is presented in the textbooks and in the exam papers, what the competences are that the core curriculum delineates economic education should develope in students, and what capacity Finnish social studies teachers have for teaching about economy. The article proposes that the presence of historical perspectives and political analyses in economic education are important, in particular when teaching about topics like the current financial-economic crises.
description: JSSE - Journal of Social Science Education, 2-2013: Crisis and Economic Education in Europe
Low temperature thermodynamic properties near the field-induced quantum critical point in DTN
Creators: name: Weickert, Franziska
name: Kuechler, Robert
name: Steppke, Alexander
name: Pedrero, Luis
name: Nicklas, Michael
name: Brando, Manuel
name: Steglich, Frank
name: Jaime, Marcelo
name: Zapf, Vivien S.
name: Paduan-Filho, Armando
name: Al-Hassanieh, Khaled A.
name: Batista, Cristian D.
name: Sengupta, Pinaki
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a comprehensive experimental and theoretical investigation of the thermodynamic properties: specific heat, magnetization and thermal expansion in the vicinity of the field-induced quantum critical point (QCP) around the lower critical field $H_{c1} \approx 2$\,T in DTN . A $T^{3/2}$ behavior in the specific heat and magnetization is observed at very low temperatures at $H=H_{c1}$ that is consistent with the universality class of Bose-Einstein condensation of magnons. The temperature dependence of the thermal expansion coefficient at $H_{c1}$ shows minor deviations from the expected $T^{1/2}$ behavior. Our experimental study is complemented by analytical calculations and Quantum Monte Carlo simulations, which reproduce nicely the measured quantities. We analyze the thermal and the magnetic Grüneisen parameters that are ideal quantities to identify QCPs. Both parameters diverge at $H_{c1}$ with the expected $T^{-1}$ power law. By using the Ehrenfest relations at the second order phase transition, we are able to estimate the pressure dependencies of the characteristic temperature and field scales.
description: 11 paged, 10 figures, submitted to PRB
How can Economics Education be Implemented without a Separate Subject? A Case Study from Germany
Creators: name: Weyland, Michael
name: Rehm, Marco
Publisher: name: sowi-online e.V., Bielefeld
Year: 2012

description: The discussion about the pros and cons of economics as a school subject has been going on for many years – and agreement has still not been reached. It is therefore useful to set aside the debate about economics as a school subject for now and to address the question of how social science-based economics education in mainstream schools can be designed in such a way to be successful. During the 2012 conference of the Association of European Economics Education (AEEE), approximately 100 teachers, teacher trainers, inspectors and researchers with a professional interest in economics and business education from all over Europe visited a German grammar school with a focus on economics education. The Siebengebirgsgymnasium in Bad Honnef strives to provide all pupils with a basic economics education and a selection of additional social science-oriented classes. Using some exemplary projects it has been demonstrated how, since 2003, the Siebengebirgsgymnasium has been dedicated to constructively addressing the Kaminski-Hedtke controversy about politics and economics education and to fostering a creative and social science-based economics education.

Die Diskussion über die Vor- und Nachteile eines Schulfachs Wirtschaft wird seit vielen Jahren geführt – und eine Einigung ist nicht in Sicht. Es erscheint daher sinnvoll, die Debatte über das Für und Wider eines Schulfachs Wirtschaft vorerst auszublenden und sich gemeinsam der Frage zuzuwenden, wie eine sozialwissenschaftlich fundierte ökonomische Bildung an allgemeinbildenden Schulen konkret ausgestaltet werden kann, damit sie erfolgreich ist. Im Rahmen der internationalen Tagung der Association of European Economics Education (AEEE) 2012 besuchten etwa 100 Lehrer, Seminarleiter, Inspektoren und Wissenschaftler aus ganz Europa eine allgemeinbildende deutsche Schule mit einem ökonomischem Profil. Das Städtische Siebengebirgsgymnasium hat es sich zum Ziel gesetzt, allen Schülerinnen und Schülern eine ökonomische Grundbildung zu vermitteln, um sie auf ein eigenverantwortliches Leben in einer zunehmend komplexen Gesellschaft vorzubereiten.. Anhand einiger exemplarischer Projekte wird aufgezeigt, wie diese Schule seit 2003 versucht, die Kaminski-Hedtke-Kontroverse kreativ zu wenden und eine sozialwissenschaftlich fundierte ökonomische Bildung zu realisieren.
description: JSSE - Journal of Social Science Education, 2-2013: Crisis and Economic Education in Europe
Accurate gravitational waveforms for binary-black-hole mergers with nearly extremal spins
Creators: name: Lovelace, Geoffrey
name: Boyle, Michael
name: Scheel, Mark A.
name: Szilagyi, Bela
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Motivated by the possibility of observing gravitational waves from merging black holes whose spins are nearly extremal (i.e., 1 in dimensionless units), we present numerical waveforms from simulations of merging black holes with the highest spins simulated to date: (1) a 25.5-orbit inspiral, merger, and ringdown of two holes with equal masses and spins of magnitude 0.97 aligned with the orbital angular momentum; and (2) a previously reported 12.5-orbit inspiral, merger, and ringdown of two holes with equal masses and spins of magnitude 0.95 anti-aligned with the orbital angular momentum. First, we consider the horizon mass and spin evolution of the new aligned-spin simulation. During the inspiral, the horizon area and spin evolve in remarkably close agreement with Alvi's analytic predictions, and the remnant hole's final spin agrees reasonably well with several analytic predictions. We also find that the total energy emitted by a real astrophysical system with these parameters---almost all of which is radiated during the time included in this simulation---would be 10.952% of the initial mass at infinite separation. Second, we consider the gravitational waveforms for both simulations. After estimating their uncertainties, we compare the waveforms to several post-Newtonian approximants, finding significant disagreement well before merger, although the phase of the TaylorT4 approximant happens to agree remarkably well with the numerical prediction in the aligned-spin case. We find that the post-Newtonian waveforms have sufficient uncertainty that hybridized waveforms will require far longer numerical simulations (in the absence of improved post-Newtonian waveforms) for accurate parameter estimation of low-mass binary systems.
description: 17 pages, 7 figures, submitted to Classical and Quantum Gravity
Fermions in a Walecka-type cosmology
Creators: name: Ribas, Marlos O.
name: Zambianchi, Pedro
name: Devecchi, Fernando P.
name: Kremer, Gilberto M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A simplified Walecka-type model is investigated in a cosmological scenario. The model includes fermionic, scalar and vector fields as sources. It is shown that their interactions, taking place in a Robertson-Walker metric, could be responsible for the transition of accelerated-decelerated periods in the early universe and a current accelerated regime. It is also discussed the role of the fermionic field as the promoter of the accelerated regimes in the early and the late stages of the universe.
description: 8 pages, 4 figures. To appear in EPL
Partial purification and characterization of an antimicrobial activity from the wood extract of mangrove plant Ceriops decandra
Creators: name: Simlai, Aritra
name: Mukherjee, Kalishankar
name: Mandal, Anurup
name: Bhattacharya, Kashinath
name: Samanta, Amalesh
name: Roy, Amit
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2016
Subjects: antimicrobial activity
bioactivity guided fractionation
Ceriops decandra
diterpenoids
human pathogens
mangroves

description: The development of resistance towards the antibiotics in use today has been a source of growing concern in the modern healthcare system around the world. To counter this major threat, there is an urgent need for discovery of new antimicrobials. Many plants, like mangroves, possess highly diversified list of natural phytochemicals which are known to have wide range of bioactivities. These phytochemicals can be good sources for the discovery of new drugs. In this study, we report the partial phytochemical characterization and antimicrobial activities of a semi-purified fraction isolated from the wood tissue of Ceriops decandra, a mangrove plant. This fraction named CD-3PM was chromatographically separated from C. decandra wood extract and was subjected to different spectral analyses to determine its partial chemical nature. The structural investigation indicates the presence of two diterpenoids, i) 3β, 13β-Dihydroxy-8-abietaen-7-one and ii) 3β-Hydroxy-8,13-abietadien-7-one in the CD-3PM fraction. The antimicrobial potential of this fraction was evaluated by microdilution-MTT assay against several organisms. Among the nine microorganisms found to be sensitive to the CD-3PM fraction, six organisms are reported to be pathogenic in nature. The CD-3PM fraction with broad spectrum antimicrobial efficacy revealed the presence of two diterpenoids and possesses potential applications in drug discovery process and food processing industries.
description: EXCLI Journal; 15:Doc103; ISSN 1611-2156
Ultra-High Energy Probes of Classicalization
Creators: name: Dvali, Gia
name: Gomez, Cesar
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Classicalizing theories are characterized by a rapid growth of the scattering cross section. This growth converts these sort of theories in interesting probes for ultra-high energy experiments even at relatively low luminosity, such as cosmic rays or Plasma Wakefield accelerators. The microscopic reason behind this growth is the production of N-particle states, classicalons, that represent self-sustained lumps of soft Bosons. For spin-2 theories this is the quantum portrait of what in the classical limit are known as black holes. We emphasize the importance of this quantum picture which liberates us from the artifacts of the classical geometric limit and allows to scan a much wider landscape of experimentally-interesting quantum theories. We identify a phenomenologically-viable class of spin-2 theories for which the growth of classicalon production cross section can be as efficient as to compete with QCD cross section already at 100 TeV energy, signaling production of quantum black holes with graviton occupation number of order 10^4.
description: 23 pages, latex
Fact Sheet: The Stakeholder Engagement Plan of ALL-Ready
Creators: name: Bijttebier, Jo
name: Fosselle, Sylvie
Publisher: name: Zenodo
Year: 2022
Subjects: stakeholder engagement
agroecologly
living labs
research infrastructures
co-creation

description: Fact Sheet about the stakeholder engagement plan of ALL-Ready and how stakeholder engegement can support the building of a European network of Agroecology Living Labs and Research Infrastructures.
A Tale of Three Cities. Between Jerusalem and Gerusalemme – Gernrode of (St.) Scholastica
Creators: name: Pinchover, Lotem
Publisher: name: 21: Inquiries into Art, History, and the Visual
Year: 2020

description: 21: Inquiries into Art, History, and the Visual, Bd. 1 Nr. 1 (2020): 21: Inquiries into Art, History, and the Visual. Beiträge zur Kunstgeschichte und visuellen Kultur
Frozen steady states in active systems
Creators: name: Schaller, Volker
name: Weber, Christoph
name: Hammerich, Benjamin
name: Frey, Erwin
name: Bausch, Andreas R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Even simple active systems can show a plethora of intriguing phenomena and often we find complexity were we would have expected simplicity. One striking example is the occurrence of a quiescent or absorbing state with frozen fluctuations that at first sight seems to be impossible for active matter driven by the incessant input of energy. While such states were reported for externally driven systems through macroscopic shear or agitation, the investigation of frozen active states in inherently active systems like cytoskeletal suspensions or active gels is still at large. Using high density motility assay experiments, we demonstrate that frozen steady states can arise in active systems if active transport is coupled to growth processes. The experiments are complemented by agent-based simulations which identify the coupling between self-organization, growth and mechanical properties to be responsible for the pattern formation process.
Grupo Culmarex empieza su actividad en el Laboratorio de Investigaciones Marinas y Acuicultura de Andratx. Un ejemplo de colaboración público-privada
Creators: name: Marine HERLIN1, Ligia GONZALEZ1, Juan Bautista SANCHEZ1, Pablo BOTIA1, Miguel PALMER3 , Juana BENAVIDES1, Marina GOMARIZ2, M. Carmen MARIN 2, Marilo LOPEZ2 I Amalia GRAU4
Publisher: name: Zenodo
Year: 2022
Subjects: aquaculture, NTA project, sea bass, sea bream, meagre, innovation, experimental cages.

description: A finales de 2021, Grupo Culmárex, inicia su colaboración con el laboratorio experimental LIMIA, instalaciones que el Gobierno Balear tiene en Andraxt, gracias a un acuerdo de colaboración con la Consellería de Agricultura, agua y alimentación. Este programa de colaboración, permitirá avances significativos en la crianza de dorada, lubina y corvina y promoverá la innovación en acuicultura en las Islas Baleares.
description: Trabajos desarrollados en el marco de proyectos nacionales y europeos: CDTI INNOVACIÓN IDI20220242 COFINANCIADO POR FEMP CDTI INVERSIÓN IDI20200554 COFINANCIADO POR FEMP
Renard_et_al_FigS1.docx from DNA methylation extends lifespan in the bumblebee Bombus terrestris
Creators: name: Renard, Thibaut
name: Martinet, Baptiste
name: De Souza Araujo, Natalia
name: Aron, Serge
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 3105
subject: Genetics
subject: FOS: Biological sciences
classificationCode: 310803
subject: Plant cell and molecular biology
classificationCode: 310902
subject: Animal cell and molecular biology
classificationCode: 310908
subject: Animal physiology - biophysics
classificationCode: 310909
subject: Animal physiology - cell
classificationCode: 310910
subject: Animal physiology - systems

description: Epigenetic alterations are a primary hallmark of ageing. In mammals, age-related epigenetic changes alter gene expression profiles, disrupt cellular homeostasis and physiological functions and, therefore, promote ageing. It remains unclear whether ageing is also driven by epigenetic mechanisms in invertebrates. Here, we used a pharmacological hypomethylating agent (RG108) to evaluate the effects of DNA methylation (DNAme) on lifespan in an insect—the bumble bee Bombus terrestris. RG108 extended mean lifespan by 43% and induced the differential methylation of genes involved in hallmarks of ageing, including DNA damage repair and chromatin organization. Furthermore, the longevity gene sirt1 was overexpressed following the treatment. Functional experiments demonstrated that SIRT1 protein activity was positively associated with lifespan. Overall, our study indicates that epigenetic mechanisms are conserved regulators of lifespan in both vertebrates and invertebrates and provides new insights into how DNAme is involved in the ageing process in insects.