cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Geometrical guidance and trapping transition of human sperm cells
Creators: name: Guidobaldi, A.
name: Jeyaram, Y.
name: Berdakin, I.
name: Moshchalkov, V. V.
name: Condat, C. A.
name: Marconi, V. I.
name: Giojalas, L.
name: Silhanek, A. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: The guidance of human sperm cells under confinement in quasi 2D microchambers is investigated using a purely physical method to control their distribution. Transport property measurements and simulations are performed with dilute sperm populations, for which effects of geometrical guidance and concentration are studied in detail. In particular, a trapping transition at convex angular wall features is identified and analyzed. We also show that highly efficient microratchets can be fabricated by using curved asymmetric obstacles to take advantage of the spermatozoa specific swimming strategy.
The Relationship between Principalsี Instructional Leadership and Teachersี Self Efficacy in Religious Private School in Alor Setar District
Creators: name: Hareesol Khun-Inkeeree
Publisher: name: rjes
Year: 2018
Subjects: Principalsี Instructional Leadership, Teachersี Self-Efficacy, private schoolส

description: Rangsit Journal of Educational Studies, 5, 2, 52-63
Teaching Work and Social Demands - Research Cases from the Political Discourse Analysis
Creators: name: Southwell, Myriam
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2013

description: This Article analyses the way in which conception about teaching profession has been built. My aim is to analyze profesionalization as a long-lasting notion and how new meanings has been recently linked to it. Moreover, I will analyse the circulation of senses and discourses that regulate and organize the teachers work, and that specifically refers to the multiple ways in which teachers assume, live and think about their task, and the problems, challenges and utopias that they bring up around it. The notion of teacher professionalization is placed in this discursive horizon as the signifier by means of which teachers were interpelled within the framework of education reforms. Therefor, I analize a concept of teacher position. The theoretical point of view is political analysis of the discourse is developed on a post-structuralist conception of the social, the ontological nature of the political, a discursive perspective of the Gramscian conception of hegemony.
description: TCI (Transnational Curriculum Inquiry), Vol. 10 No. 1 (2013)
Prospect for Study of Randall-Sundrum model from Higgs decay at future colliders
Creators: name: Kubota, Hirohisa
name: Nojiri, Mihoko
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In a class of Randall-Sundrum(RS) models, matter fermions and gauge bosons live in a five dimensional bulk, while the Higgs boson lives in a four dimensional visible brane. The Higgs boson can mix with a radion, by a Higgs-radion mixing term. It is difficult to directly discover the heavy Kaluza-Klein(KK) particles at the Large Hadron Collider(LHC), because the mass of the lightest KK particle is expected to be above 10 TeV to satisfy constraints from avor changing neutral currents(FCNC). Instead, the precision measurements of the Higgs sector at the high luminosity LHC(HL-LHC) and the International Linear Collider(ILC) is a promising way to observe the deviation originating from the Higgs-radion mixing and radiative corrections from the KK gauge bosons and matter fermions. For some cases, those effects are separately determined, providing valuable information on the model. We perform an extensive scan of the model parameters to see the expected deviations of the Higgs couplings. We also choose several reference points consistent with the current data to show the precision of the fundamental parameter measurements at the future colliders. We also study the radion-Z-Z coupling in the model and discuss the role of the ILC for radion search.
description: 25 pages, 23 figures
Cancer Prognosis Prediction Using Balanced Stratified Sampling
Creators: name: Saleema, J S
name: Bhagawathi, N
name: Monica, S
name: Shenoy, P Deepa
name: Venugopal, K R
name: Patnaik, L M
Publisher: name: arXiv
Year: 2014
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.6; H.2.8
subject: 62D05

description: High accuracy in cancer prediction is important to improve the quality of the treatment and to improve the rate of survivability of patients. As the data volume is increasing rapidly in the healthcare research, the analytical challenge exists in double. The use of effective sampling technique in classification algorithms always yields good prediction accuracy. The SEER public use cancer database provides various prominent class labels for prognosis prediction. The main objective of this paper is to find the effect of sampling techniques in classifying the prognosis variable and propose an ideal sampling method based on the outcome of the experimentation. In the first phase of this work the traditional random sampling and stratified sampling techniques have been used. At the next level the balanced stratified sampling with variations as per the choice of the prognosis class labels have been tested. Much of the initial time has been focused on performing the pre_processing of the SEER data set. The classification model for experimentation has been built using the breast cancer, respiratory cancer and mixed cancer data sets with three traditional classifiers namely Decision Tree, Naive Bayes and K-Nearest Neighbor. The three prognosis factors survival, stage and metastasis have been used as class labels for experimental comparisons. The results shows a steady increase in the prediction accuracy of balanced stratified model as the sample size increases, but the traditional approach fluctuates before the optimum results.
Tropological Curriculum Studies: Puppets and Statues of Curriculum Quagmires
Creators: name: Appelbaum, Peter
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2013

description: There is a never-ending tension between conceiving of educational experience as enabling and as constraining. We seem locked into this dichotomy with no escape: In The Character of Curriculum Studies, William Pinar (2011) notes that the sociology of education, so dominant in the field of curriculum studies, has seemingly “won out” as the clearest interpretation of schooling: schools are institutions of social reproduction. Rather than accepting this idea and moving on, we perseverate, constantly creating new research projects that reconfirm the hypothesis, which of course, in Foucauldian terms, makes for a successful perpetuation of practice and guarantees a career. But what would it mean to “move on”? A psychoanalyst would define repeated behaviors with no “results” as psychosis. If reproduction studies as social change is the result sought, then yes, we would have to recommend serious therapy for curriculum studies. If the goal is to establish careers in a field that excels at critiquing schooling, then we might instead celebrate our field as fairly healthy. Regarding the possibility of “therapy” for our field of research. In his introduction to The Puppet and the Dwarf, Žižek evokes Hegel’s assertion that it is folly to alter a corrupt ethical system without changing the religion, to make a revolution without a reformation. The basic tension is not so much between reason and feeling, but instead between knowledge and a disavowed belief embodied in external ritual. That is, between logical consistency and the notion that “I know what I am doing, but nevertheless I am doing it.”
description: TCI (Transnational Curriculum Inquiry), Vol. 10 No. 1 (2013)
Characterisation of the Dust Cloud During Landing on Lunar and Martian Surfaces
Creators: name:  CLAUDIA JIMENEZ CUESTA
name:   DAVID PICKLES
name:   ANDREA CAMMARANO
name:   HOSSEIN ZARE-BEHTASH
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: PSIS
SBLIS
LUNAR DUST
MARTIAN DUST
DUST MITIGATION
REGOLITH INTERACTION

description: Plume-Surface Interactions are complex phenomena present in extra-terrestrial landings which can damage spacecraft equipment. This work develops an edge detection algorithm to characterise the region of influence of a dust cloud formed upon plume impingement. High-speed imaging is used to test different image segmentation approaches and the results show that global thresholding provides a simple and efficient boundary detection method for regions of high particle concentration, while Gabor filtering in the frequency domain is an overall better yet more complex edge-detection approach. Lastly, a 3-D reconstruction is carried out by combining the detected edges from three perspectives.
Educational Innovation and Curriculum Reform in Mexico
Creators: name: Diaz Barriga, Frida
name: Barron, Concepción
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2013

description: In the implementation of curriculum reform reaching across the Mexican educational system, the term innovation has been the key factor associated with the design and implementation of new curriculum models and the implementation of alternative teaching methods. The claimed innovation is intended to meet the demands facing Mexican education to a complex and increasingly globalized society. However, the incorporation of certain innovative models (curricular flexibility, competency-based education, learner-centered curriculum, incorporating ICT in education, among others) comes not only from the apparent need for change and quality improvement educational, but is based on a series of international trends in education reform. The most recent reforms have been driven by policies emanating from national and international organizations not only in the education sector, but the economic and business environment, with a clear dependence on the proposals to evaluation linked to education funding. Recent studies found that innovation is not encouraged and that systemic changes involved in education, teachers and students, have experienced significant tensions in the process of appropriation of curricular innovations.
description: TCI (Transnational Curriculum Inquiry), Vol. 9 No. 2 (2012): Rio Curriculum Conference
Educational Reform, Public Engagement and “Complexity”
Creators: name: Davis, Brenda
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2013

description: Educational reform is a political reality in North America yet it is rare for the public to be engaged in directing curriculum reform. Using the lens of 5 C’s — Complexity, Community, Conversation, Currere, and Cosmology — as a framework (Doll & Gough, 2002), I explore Inspiring Education: A Dialogue With Albertans, an initiative which took place in 2009-10, aimed at engaging the public in creating a vision for education over 20 years. Engaging the public in this reform dialogue was unique in using a ‘currere-like’ question process. In this paper I will offer three points. First, I will set out sufficient details of the ‘currere-like’ process for others to replicate. Second, I will argue that educational reform initiatives should be based upon more inclusive and authentic public engagement. Third, I will provide evidence — using words from dialogue participants — about how valuable the public’s input can be in creating an expansive vision of education.
description: TCI (Transnational Curriculum Inquiry), Vol. 9 No. 2 (2012): Rio Curriculum Conference
Evaluating charge noise acting on semiconductor quantum dots in the circuit quantum electrodynamics architecture
Creators: name: Basset, Julien
name: Stockklauser, Anna
name: Jarausch, David-Dominik
name: Frey, Tobias
name: Reichl, Christian
name: Wegscheider, Werner
name: Wallraff, Andreas
name: Ensslin, Klaus
name: Ihn, Thomas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We evaluate the charge noise acting on a GaAs/GaAlAs based semiconductor double quantum dot dipole-coupled to the voltage oscillations of a superconducting transmission line resonator. The in-phase ($I$) and the quadrature ($Q$) components of the microwave tone transmitted through the resonator are sensitive to charging events in the surrounding environment of the double dot with an optimum sensitivity of $8.5\times10^{-5} \mbox{e}/\sqrt{\mbox{Hz}}$. A low frequency $1/f$ type noise spectrum combined with a white noise level of $6.6\times10^{-6}$ $\mbox{e}^2/\mbox{Hz}$ above $1$ Hz is extracted, consistent with previous results obtained with quantum point contact charge detectors on similar heterostructures. The slope of the $1/f$ noise allows to extract a lower bound for the double-dot charge qubit dephasing rate which we compare to the one extracted from a Jaynes-Cummings Hamiltonian approach. The two rates are found to be similar emphasizing that charge noise is the main source of dephasing in our system.
description: 5 pages, 3 figures
Curricular Studies and their Relation with the Political Agenda for Education
Creators: name: Leite, Carlinda
name: Fernandes, Preciosa
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2013

description: Since the end of the 20th century Portugal has witnessed the rise of a movement promoting curriculum changes. In basic and secondary education this has meant the adoption of policies seeking the equality of opportunities to school access and success. This was first stated in the Law 46 of 1986. Since then (predominantly between 1997 and 2008), a number of political measures have been taken to achieve this goal. However, few studies establish a relation between scientific production and curricular policies. This paper aims to answer the question: What is the relationship between educational politicies and the foci of curricular studies?. Accordingly, this paper begins by situating the main features of the curricular policies that have characterised this period, while also considering international policies influences. This constitutes the basis of empirical research developed in three consecutive phases: i) systematisation of the curricular studies produced in Portugal between 1997 and 2008; ii) identification of the studies’ foci; iii) establishment of relationships between those foci and curricular political measures. The analysis allowed concluding that the production of studies focusing on the curriculum in Portugal was determined by the curricular political agenda and that the international agenda significantly influences the curricular political agenda.
description: TCI (Transnational Curriculum Inquiry), Vol. 9 No. 2 (2012): Rio Curriculum Conference
The central pc-scale region in blazars: insights from multi-band observations
Creators: name: Arshakian, Tigran G.
name: Chavushyan, Vahram
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 empirical relations in the black hole-accretion disk-relativistic jet system and physical processes behind these relations are still poorly understood, partly because they operate close to the black hole within the central light year. Very long baseline array (VLBA) provides unparalleled resolution at 15 GHz with which to observe the jet components at sub-milliarcsecond scales, corresponding to sub-pc-scales for local blazars. We discuss the jet inner structure of blazars, location and radiation mechanisms operating in the innermost parsec-scale region of blazars, and evidence for jet-excited broad-line region (BLR) ouflowing downstream the jet. Outflowing BLR can provide necessary conditions for production of high energy emission along the jet between the base of the jet and the BLR and far beyond the BLR as evidenced by recent observations. Flat spectrum quasars and low synchrotron peaked sources are the most likely objects to host the outfllowing BLR. From the $γ$-ray absorption arguments, we propose that the jet-excited region of the outflowing BLR in quasars is small and/or gas filling factor is low, and that the orientation and opening angle of the outflowing BLR can lead to relevant $γ$-ray absorption features observed in quasars.
description: 4 pages, will appear in Conference Proceedings for IAU Symposium 304 "Multi-wavelength AGN Surveys and Studies" held in Yeravan, Armenia, October 1-6, 2013
Coyote and Raven Put the ‘Digital’ In Technology — Hands-up and Down to Earth
Creators: name: Cole, Peter
name: O'Riley, Pat
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2013

description: Drawing on a diversity of theoretical and cultural understandings, ubiquitous tricksters Coyote and Raven invite readers to engage in a virtual/actual retelling and remapping of the predominant technology storylines being offered in education. They have a conversation about the epistemological dominance of electronic technologies as the predominant technology storyline in education, while overlooking Indigenous and other othered technological literacies. With the rapid loss of the diversity of the world’s languages, wisdom, and technological know-how, they highlight the importance of more culturally inclusive technological literacy so that students might have a better understanding of how to address the challenges facing humanity and the biosphere. They ask educators to consider remapping technology discourses as equivalent conversations, not mere add-ons or alternatives, toward more robust and complex technological literacies in education.
description: TCI (Transnational Curriculum Inquiry), Vol. 9 No. 2 (2012): Rio Curriculum Conference
Africa under attack: a continent-wide mapping of pathogens, parasites and predators afflicting the hived honey bee Apis mellifera L. (Hymenoptera: Apidae)
Creators: name: Rugira Kugonza, Donald
Publisher: name: figshare
Year: 2022
Subjects: subject: 79999 Agricultural and Veterinary Sciences not elsewhere classified
subject: FOS: Other agricultural sciences

description: This paper describes the pests, parasites and predators that afflict the honey bees of Africa
Pedagogy of the Moment: a Journey on Becoming Wide-Awake
Creators: name: Ibrahim, Awad
name: Glithero, Lisa
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2013

description: Experientially framed around Malcolm’s learning experience in Antarctica, the paper seeks to understand elements that are central to educational moments where a high student becomes wide-awake. To become wide-awake, we are arguing, is to become ontologically open to the possibility, imagining, and potentiality of radical transformation through one’s acknowledged agency. Exploring the convergence of four pedagogical tributaries — cosmological, place, relational, and hermeneutic — we unpack how this moment makes Malcolm see the world anew. The paper concludes that a pedagogy of the moment — a ‘moment’ not in its momentary-time-sense, that is, as an in passing moment, but a performative moment that is deeply situated in time, history and place — is a necessary aim of education in a world thrust into unknowns by global sustainability challenges.
description: TCI (Transnational Curriculum Inquiry), Vol. 9 No. 2 (2012): Rio Curriculum Conference
Conceptual design optimization of Hybrid-Electric Regional Aircraft using SPPH architecture
Creators: name:  LAURENT BOVET
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: AIRCRAFT DESIGN
HYBRID ELECTRIC AIRCRAFT
OPTIMIZATION

description: Based on a classical and documented preliminary sizing method for transport aircraft, the aim of this study is to optimize a regional aircraft using hybrid electric propulsion (HEP) with a Serial Parallel Partial Hybrid (SPPH) powertrain in the conceptual design phase. In this process, a \"power-loading diagram\" including the set of curves \"weight to power ratio\" vs. \"wing loading\" are plotted for each flight phase, including take-off, initial climb with one engine inoperative (OEI), cruise and approach. On this diagram, the design point for minimum battery power can be computed, representing the design point in terms of wing loading. Moreover, in hybrid-electric architectures, SPPH powertrain is the most generic as it covers all others, including serial, parallel, turbo-electric and full electric. By fixing the values of only two control parameters, a \"supplied power ratio\", and a \"shaft power ratio\", every operating mode can be obtained from this generic configuration. Thus, it\'s possible to compute the principal weights of a hybrid-electric aircraft with these two parameters fixed in order to complete a standard mission at a given payload and range typical of theATR 72. Finally, it has been demonstrated that for a given value of the supplied power ratio, and by taking a random value for the shaft power ratio for each flight phase, it\'s possible to find a global optimum corresponding to the minimum total aircraft weight among all the design points computed. This optimum design point corresponds to a particular operating mode of the SPPH powertrain for each flight phase.
Optimized multi-satellite manoeuvring strategy for responsive Earth observation
Creators: name:  NICOLA CIMMINO
name:   ANNARITA ARGIRO
name:   ROBERTO OPROMOLLA
name:   GIANCARMINE FASANO
name:   GIORGIO ISOLETTA
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: RESPONSIVE SPACE
AGILE MANOEUVRING
MULTI-OBJECTIVE OPTIMIZATION
EARTH OBSERVATION

description: Responsive space, i.e., the capability to address unpredicted situations in a relatively short time, is becoming paramount. Several literature approaches exist, which aim to optimize overflight manoeuvres of a single satellite over one or multiple targets. However, current space actors can rely on more than one satellite to manoeuvre. This paper proposes a decision-making architecture to observe an Earth site, considering a set of multiple sensor-equipped satellites in Low Earth Orbit. A multi-objective algorithm is implemented to determine the optimal solution in terms of total /1 V and time to overflight. The method is tested on both simulated and real scenarios.
Abstract Interpretation of Temporal Concurrent Constraint Programs
Creators: name: Falaschi, Moreno
name: Olarte, Carlos
name: Palamidessi, Catuscia
Publisher: name: arXiv
Year: 2013
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.3.1; D.3.2

description: Timed Concurrent Constraint Programming (tcc) is a declarative model for concurrency offering a logic for specifying reactive systems, i.e. systems that continuously interact with the environment. The universal tcc formalism (utcc) is an extension of tcc with the ability to express mobility. Here mobility is understood as communication of private names as typically done for mobile systems and security protocols. In this paper we consider the denotational semantics for tcc, and we extend it to a "collecting" semantics for utcc based on closure operators over sequences of constraints. Relying on this semantics, we formalize a general framework for data flow analyses of tcc and utcc programs by abstract interpretation techniques. The concrete and abstract semantics we propose are compositional, thus allowing us to reduce the complexity of data flow analyses. We show that our method is sound and parametric with respect to the abstract domain. Thus, different analyses can be performed by instantiating the framework. We illustrate how it is possible to reuse abstract domains previously defined for logic programming to perform, for instance, a groundness analysis for tcc programs. We show the applicability of this analysis in the context of reactive systems. Furthermore, we make also use of the abstract semantics to exhibit a secrecy flaw in a security protocol. We also show how it is possible to make an analysis which may show that tcc programs are suspension free. This can be useful for several purposes, such as for optimizing compilation or for debugging.
Development of a novel capture system
Creators: name:  E. ONILLON
name:   A. IGLESIAS
name:   G. PERRUCHOUD
name:   S. LIBERATOSCIOLI
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: CAPTURE
SERVICING
GRIPPER
STEWART PLATFORM
LOADS

description: Space Debris mitigation shall now be considered at the design stage of the next generation of satellites and missions, especially for Low Earth Orbit missions. In this frame, a dedicated standardized interface was previously developed and named :MICE, \"Mechanical Interface for Capture at End-of-life\". Such an interface shall equip new satellite generations. In the continuity of previous ESA developments (PRINCE), in the frame of the CRUSSADER GSTP activity, Almatech and CSEM are developing a gripping system, based on a three-finger gripper mounted on a Steward platform that provides the required compliance. The system shall be developed to cope with cooperative and non-cooperative targets. The proposed approach does not necessitate the use of a robotic arm. In the end, such a three-finger gripping system will also be enhanced to allow satellite servicing, thus improving the satellite lifetime, with the integration of fluidic, data and electrical interfaces. The mechanism relies on custom actuators based on brushless motors and plain bearings. A dedicated EGSE is proposed, to drive the mechanism in closed-loop operation. Development, analysis as well as design challenges are presented. Keywords: Capture, Servicing, Gripper, Stewart platform, Loads Copyright 2023 by First Author. Posted online by the EU CASS association with permission.
Local structural distortions and their role in superconductivity in SmFeAsO$_{1-x}$F$_x$ superconductors
Creators: name: Ingle, Kapil
name: Priolkar, K. R.
name: Pal, Anand
name: Awana, V. P. S.
name: Emura, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: EXAFS studies at the As K edge as a function of temperature have been carried out in SmFeAsO$_{1-x}$F$_x$ ($x$ = 0 and 0.2) compounds to understand the role of local structural distortions superconductivity observed in F doped compound. A significant correlation between thermal variation of local structural parameters like anion height and superconducting onset is found in the fluorinated compound. Such a variation in anion height is absent in non-superconducting compound. Increase in Fe-As bond distance just below superconducting onset temperature indicates a similarity in distortions observed in high T$_C$ cuprates and these Fe based superconductors.
description: Accepted in Superconductor Science and Technology
The ShareGrid Portal: an easy way to submit jobs on computational Grids
Creators: name: Anglano, Cosimo
name: Canonico, Massimo
name: Guazzone, Marco
Publisher: name: Zenodo
Year: 2008
Subjects: Grid computing
Grid portal
Portal framework
Bag-of-Tasks
Parameter sweep applications

description: Grid computing is a distributed computing paradigm which aims to aggregate several heterogeneous and distributed resources, belonging to different and independent organizations, in a dynamic, transparent and coordinated way. Since its introduction, Grid computing has been successfully applied to solve several scientific challenging applications. Despite of the consolidation of many of its aspects, there are some issues that are still open. One of them is the transparency: in many real Grid systems, users still need to be aware of Grid computing, either for adapting their applications to this paradigm or for wrapping them in a suitable software framework. In this paper we present the ShareGrid Portal, a Web portal and a portal framework, built on top of the ShareGrid project infrastructure. Its intent is both to ease the execution of user applications in a Grid system and to allow developers to flexibly add new portal functionalities. In this work, we compare it with other well-known Grid portals and we show its user interface and its architecture. Finally we discuss user experiences and future extensions.
description: This work has been supported by TOP-IX and the Piedmont Region Agency under the Innovation Development Program
Analytical Multi-kinks in smooth potentials
Creators: name: de Brito, G. P.
name: Correa, R. A. C.
name: Dutra, A. de Souza
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work we present an approach which can be systematically used to construct nonlinear systems possessing analytical multi-kink profile configurations. In contrast with previous approaches to the problem, we are able to do it by using field potentials which are considerably smoother than the ones of Doubly Quadratic family of potentials. This is done without losing the capacity of writing exact analytical solutions. The resulting field configurations can be applied to the study of problems from condensed matter to brane world scenarios.
The TAAROA Project Specification
Creators: name: Anglano, Cosimo
name: Canonico, Massimo
name: Guazzone, Marco
name: Zola, Matteo
Publisher: name: Zenodo
Year: 2009
Subjects: Grid Computing
Service Level Agreement
Virtualization.

description: Since its introduction, the Grid computing paradigm has been widely adopted both in scientific and also in industrial areas. The main advantage of the Grid computing paradigm is the ability to enable, in a transparent way, the sharing and the coordination of several heterogeneous and large-scale distributed resources belonging to different institutional domains. One of its limitation is the lack of facilities for executing services. In fact, Grid computing has been traditionally used and improved for running computational-intensive or data-intensive applications. A service differs from this kind of applications in that it usually waits for requests from clients and replies with useful information; moreover, a service is typically subjected to some predefined constraints, called Service Level Agreement (SLA), including both temporal and performance restrictions. In this paper we present the TAAROA middleware, a software system that tries to extend the traditional target of the Grid computing paradigm to include the service concept. It attempts to accomplish its goal by using the virtualization technology. By abstracting the hardware and software resources of a computer, virtualization brings to TAAROA two important benefits: (1) the encapsulation of the service runtime environment, and (2) the possibility, through the migration facility, to move a service from the computer where it is running to another one that hopefully reduces the risk of violating some of the SLA constraints. In the current version of TAAROA middleware there is no explicit mechanism for achieving the level of a service as defined by the related SLA; this means that actually TAAROA is only able to provide a best-effort service.
description: This work has been supported by TOP-IX and the Piedmont Region Agency under the Innovation Development Program.
Modelling galaxy spectra at redshifts 0.2
Creators: name: Contini, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the detailed modelling of line spectra emitted from galaxies at redshifts 0.2
description: 11 pages, 8 figures. Accepted for publication in Astronomy and Astrophysics
title: A Robust One-Step Recombineering System for Enterohemorrhagic Escherichia coli
Creators: name: Peng, Lang
name: Dumevi, Rexford Mawunyo
name: Chittò, Marco
name: Haarmann, Nadja
name: Berger, Petya
name: Koudelka, Gerald
name: Schmidt, Herbert
name: Mellmann, Alexander
name: Dobrindt, Ulrich
name: Berger, Michael
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 610 Medicine and health

description: Enterohemorrhagic 'Escherichia coli' (EHEC) can cause severe diarrheic in humans. To improve therapy options, a better understanding of EHEC pathogenicity is essential. The genetic manipulation of EHEC with classical one-step methods, such as the transient overexpression of the phage lambda (λ) Red functions, is not very efficient. Here, we provide a robust and reliable method for increasing recombineering efficiency in EHEC based on the transient coexpression of 'recX' together with 'gam, beta, and exo'. We demonstrate that the genetic manipulation is 3–4 times more efficient in EHEC O157:H7 EDL933 Δstx1/2 with our method when compared to the overexpression of the λ Red functions alone. Both recombineering systems demonstrated similar efficiencies in 'Escherichia coli' K-12 MG1655. Coexpression of 'recX' did not enhance the Gam-mediated inhibition of sparfloxacin-mediated SOS response. Therefore, the additional inhibition of the RecFOR pathway rather than a stronger inhibition of the RecBCD pathway of SOS response induction might have resulted in the increased recombineering efficiency by indirectly blocking phage induction. Even though additional experiments are required to unravel the precise mechanistic details of the improved recombineering efficiency, we recommend the use of our method for the robust genetic manipulation of EHEC and other prophage-carrying 'E. coli' isolates.
description: Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
Advancing FAIR with data standards for chemical description
Creators: name: McEwen, Leah
Publisher: name: Zenodo
Year: 2023
Subjects: Talk, FAIR, Cheminformatics, Chemical Data, RDA

description: This presentation was presented by Leah McEwen at the Research Data Alliance's 20th Plenary (RDA P20) hybrid meeting that took place 21-23 March 2023 in Gothenburg, Sweden and virtually. Overall presentations and sessions delivered and organized by the WorldFAIR Chemistry at the RDA P20 NO Session Title Talk Title FAIR Chemistry Presenter Slides DOI 1 Chemistry Research Data Interest Group (CRDIG) Advancing FAIR with data standards for chemical description Leah McEwen https://doi.org/10.5281/zenodo.7789071 2 Data representation in materials and chemicals based on harmonized domain ontologies The IUPAC Gold Book: A Compendium of Chemical Terminology Stuart Chalk https://doi.org/10.5281/zenodo.7789101 3 The Way to FAIR: from data collection to citation Chemical Analysis Use Case Stuart Chalk https://doi.org/10.5281/zenodo.7789085 4 Interoperable Descriptions of Observable Property Terminology WG (I-ADOPT WG) iAdopt in SciData Stuart Chalk https://doi.org/10.5281/zenodo.7789111 5 The Cross-Domain Interoperability Framework (CDIF) Workshop NA NA NA 6 Chemistry Research Data Interest Group (CRDIG) Session Organized by Ian Bruno Leah McEwen and Ian Bruno TBA
 *WorldFAIR “Global cooperation on FAIR data policy and practice” is funded by the EC HORIZON-WIDERA-2021-ERA-01-41 Coordination and Support Action under Grant Agreement No. 101058393.
Recent Research in Commerce and Management
Creators: name: Prof. (Dr.) Somesh Kumar Shukla
name: Dr.Dilshad Ahmad Ansari
name: Dr. Heena R Upadhyaya
Publisher: name: Zenodo
Year: 2023

description: This Edited book “Recent Research in Commerce and Management” is based on the proceedings of the “2nd Online International Conference on Advance Interdisciplinary Research (ICAIR-2023)”, Jointly Organized by Digvijay Nath Post Graduate College, Gorakhpur, U.P. & Science-Tech Institute run by Manraj Kuwar Singh Educational Society, Lucknow, U.P. during April 07 -09, 2023. The aim of this conference was to bring together the young as well as experienced researchers on one platform to discuss the recent findings in the aforesaid areas of Physical and Chemical Sciences. After peer reviewing process, relevant research papers were finally included in this book as chapters. The present volume is based on the contributions made by various authors on different important topic of “Recent Research in Commerce and Management” and introduces the subject along the following topics: Betel Leaf Farming: A case study of Purba Medinipur Disctrict, West Bengal; Factors affecting job satisfaction& job loyalty of employees in higher education; Impact of COVID-19 on Small and Marginal Farmers in India; The Vital Role of Artificial Intelligence in the Developing Human Resource Field; Transforming India through Self-reliance, Atmanirbhar Bharat; An Analytical Study of Development in UT Ladakh after the abrogation of Article 370, especially in Tourism sector; Does the market reward Corporate Environmentalism? Evidence from Indian IT Firms; and Decoding the Economic Revitalization Strategy of Uttar Pradesh and its Impact on State"s Economy
Investigation of Star Formation toward the Sharpless 155 H II region
Creators: name: Huang, Ya Fang
name: Li, Jin Zeng
name: Rector, Travis A.
name: Fan, Zhou
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a comprehensive study of star formation toward the H II region S155. Star-formation activities therein were investigated based on multi-wavelength data from optical to the far-infrared. The surface density distribution of selected 2MASS sources toward S155 indicates the existence of a compact cluster, which is spatially consistent with the position of the exciting source of the H II region, HD 217086. A sample of more than 200 excessive emission sources in the infrared were selected based on their 2MASS color indices. The spatial distribution of the sample sources reveals the existence of three young sub-clusters in this region, among which, sub-cluster A is spatially coincident with the bright rim of the H II region. In addition, photometric data from the WISE survey were used to identify and classify young stellar objects (YSOs). To further explore the evolutionary stages of the candidate YSOs, we fit the spectral energy distribution (SEDs) of 44 sources, which led to the identification of 14 Class I, 27 Class II, and 3 Class III YSOs. The spatial distribution of the classified YSOs at different evolutionary stages presents a spatio-temporal gradient, which is consistent with a scenario of sequential star formation. On the other hand, Herschel PACS observations toward the interface between S155 and the ambient molecular cloud disclose an arc-shaped dust layer, the origin of which could be attributed to the UV dissipation from the early type stars e.g. HD 217061 in S155. Four dusty cores were revealed by the Herschel data, which hints for new generations of star formation.
description: arXiv admin note: text overlap with arXiv:1212.1530
title: Aggressive breast cancer mimicking sebaceous cyst in a young patient
Creators: name: Coady, Thomas
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Breast imaging
subject: Breast
subject: Mammography
subject: PET-CT
subject: Ultrasound
subject: Clinical Cases

description: Clinical History: Our patient was a 29-year-old woman who presented to the breast unit with a 4-day history of a tender lump in the right breast with no risk factors for breast cancer.

description: 29 years, female
Heat exchanger integration into an aero-engine bypass duct
Creators: name:  RAUL BAJIMAYA
name:   DAVID MACMANUS
name:   CHAWKI ABDESSEMED
name:   IOANNIS GOULOS
name:   JESUS MATESANZ GARCIA
name:   CHRISTOPHER SHEAF
name:   VASILEIOS KYRITSIS
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: COMPUTATIONAL FLUID DYNAMICS
EMBEDDED HEAT EXCHANGER SYSTEMS
MIXED-FIDELITY METHODS
DESIGN SPACE EXPLORATION

description: The development of aero engines with geared fans may require the use of a heat exchanger system embedded within the bypass duct to dissipate heat due to the losses within the power gearbox of the fan. It is pertinent that the naturally ventilated heat exchanger system (HEX) is designed and installed to minimise detrimental impacts on the performance of the engine while meeting the HEX heat transfer requirements. This paper demonstrates the capabilities of a coupled mixed fidelity method to model a ventilated HEX embedded within the bypass duct. A systematic approach is presented to quantify the sensitivity of HEX heat transfer, HEX volume and engine net thrust to perturbation in HEX overall size and integration. A method to explore and quantify the trade-offs in HEX performance and bypass performance is detailed. The method can be used to allow rapid assessment of the integration of the HEX with the bypass duct.
Peres Lattices and chaos in the Dicke model
Creators: name: Bastarrachea-Magnani, Miguel Angel
name: Hirsch, Jorge G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Peres lattices are employed as a visual method to identify the presence of chaos in different regions of the energy spectra in the Dicke model. The coexistence of regular and chaotic regions can be clearly observed for certain energy regions, even if the coupling constant is smaller than the critical value to reach superradiance. It also exhibits the presence of two Excited-State Quantum Phase Transitions, a static and a dynamic one. The diagonalization is performed in a extended bosonic coherent basis which enable us to reach a large number of excited states with good numerical convergence.
description: 9 Pages, 5 Figures, IOP Journal of Physics Conference Series, Submitted
Comparative review of Multidisciplinary Design Analysis and Optimization architectures for the preliminary design of a liquid rocket engine
Creators: name:  LUCAS BARATON
name:   ANNAFEDERICA URBANO
name:   LOIC BREVAULT
name:   MATHIEU BALESDENT
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: MULTIDISCIPLINARY DESIGN OPTIMIZATION
LAUNCH SYSTEMS
LIQUID ROCKET ENGINE
VARIABLE-SIZE DESIGN SPACE PROBLEM

description: Multidisciplinary Design Analysis and Optimization (MDAO) problems can involve system architecture choices, represented by design variables ( called conditional variables) modifying the optimization problem\'s structure (e.g., number of design variables and constraints). The associated problem is called Conditional Search-Space Problem (CSSP). This paper proposes a MDAO formulation of the CSSP, and presents a relaxation methodology to solve a certain class of problems. The method is compared to the classical approach consisting in optimizing every possible architecture and illustrated on a liquid rocket engine application. Two MDAO formulations are compared on the relaxed problem: Multidisciplinary Feasible (MDF) and Individual Discipline Feasible (IDF).
Evolution of magnetic field generated by the Kelvin-Helmholtz instability
Creators: name: Modestov, Mikhail
name: Bychkov, Vitaly
name: Brodin, Gert
name: Marklund, Mattias
name: Brandenburg, Axel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The Kelvin-Helmholtz instability in an ionized plasma is considered with a focus on the generation of magnetic field via the Biermann battery mechanisms. The problem is studied through direct numerical simulations of two counter-directed flows in 2D geometry. The simulations demonstrate the formation of eddies and their further interaction resulting in a large single vortex. At early stages, the generated magnetic field evolves due to the baroclinic term in the induction equation, revealing significantly different structures from the vorticity field, despite the fact that magnetic field and vorticity obey identical equations. At later times, the magnetic field exhibits complex behavior and continues to grow even after a hydrodynamic vortex has developed.
description: 10 pages, 12 figures, To be submitted to Physics of Plasmas
Circumstellar effects on the Rb abundances in O-rich AGB stars
Creators: name: Zamora, O.
name: Garcia-Hernandez, D. A.
name: Plez, B.
name: Manchado, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: For the first time we explore the circumstellar effects on the Rb (and Zr) abundance determination in O-rich asymptotic giant branch (AGB) stars by considering the presence of a gaseous circumstellar envelope with a radial wind. A modified version of the spectral synthesis code Turbospectrum was used to deal with extended atmosphere models and velocity fields. The Rb and Zr abundances were determined from the resonant 7800A Rb I line and the 6474A ZrO bandhead, respectively, in five representative O-rich AGB stars with different expansion velocity and metallicity. By using our new dynamical models, the Rb I line profile (photospheric and circumstellar components) is very well reproduced. Interestingly, the derived Rb abundances are much lower (by 1-2 dex) in those O-rich AGB stars showing the higher circumstellar expansion velocities. The Zr abundances, however, remain close to the solar values. The Rb abundances and Rb/Zr ratios derived here significantly alleviate the problem of the present mismatch between the observations of intermediate-mass (4-8 solar masses) Rb-rich AGB stars and the AGB nucleosynthesis theoretical predictions.
description: Accepted for publication in Astronomy & Astrophysics Letters (7 pages, 5 figures, and 2 tables); final version (language corrected)
title: Virtual Outcrop Models - Chances and Challenges for Geoscience School Education
Creators: name: Hlawatsch , Sylke
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2021

description: Geoscience has a key role in adressing the challenges of sustainability, yet in German schools a regular subject such as Earth sciences does not exist. Teacher feel uncomfortable with teaching the content and unless an infrastructure for geoscience education - including educational research and systematic teacher training - is implemented in all 16 German states this situation is unlikely to change. Thus geoscience outreach activities play an important role in informing the society about the processes that determine the continuous development of the Earth as a system. Can they also contribute towards geoscience school education? The 3D digital model of the outcrop „Devils Table“ (https://digitalgeology.de/der-teufelstisch) was used for instruction in an applied science course called „Geoscience“ with students aged 14-16 years. The aim of this small exploratory investigation was to find out, whether the students were able to identify the rocks characteristics only using the model and to what extend they deduced sensible conclusions about the development of the landscape from their observations. After that, the students received the information provided by the scientist online and were asked to verify their own assumption rsp. to identify and correct misconceptions. All students showed interest in the task and developed their understanding of the Earth as a dynamic system. The learning outcomes and challenges will be presented and suggestions discussed that can help to enable teacher and students without geoscience background to profit from the digital outcrop models.
СУЧАСНІ СПІРАЛЬНІ НАВАНТАЖУВАЧІ СИПКИХ МАТЕРІАЛІВ: ОГЛЯД КОНСТРУКЦІЙ
Creators: name: Popov, Stanislav
name: Назарій, Савченко
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 401499
subject: Manufacturing engineering not elsewhere classified

description: Проведене дослідження конструкцій сучасних спіральних навантажувачів закордонного та вітчизняного виробництва засвідчило, що майже усі серійні моделі мають подібну конструктивну будову. Підвищення рівня продуктивності досягається за рахунок збільшення геометрії робочого органу (шнека). У свою чергу, це призводить до збільшення рівня споживання енергії, а також металоємності. Серед недоліків виявлено, що наявні конструкції не обладнані пристроями очищення зернових від легких домішок.