cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Automorphism groups of finite dimensional simple algebras
Creators: name: Gordeev, Nikolai L.
name: Popov, Vladimir L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Rings and Algebras (math.RA)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We show that if a field k contains sufficiently many elements(for instance, if k is infinite), and K is an algebraically closed field containing k, then every linear algebraic k-group over K is k-isomorphic to Aut(A\otimes_kK), where A is a finite dimensional simple algebra over k.
description: 25 pages published version
Η νεοφιλελεύθερη-νεοσυντηρητική αναδιάρθρωση της ελληνικής εκπαίδευσης, η ΑΔΙΠΠΔΕ και η «κριτική σχολική παιδαγωγική» του προέδρου της
Creators: name: Γρόλλιος, Γιώργος
Publisher: name: Κριτική Εκπαίδευση
Year: 2021

description: In this paper I examine certain aspects of the Authority for Quality Assurance in Primary and Secondary Education’s role from 2013 till 2021. To be more exact, I examine the ways in which the Authority supported the neoliberal – neoconservative reconstruction of Greek education mainly via public silence, reports and using critical pedagogy.
description: Κριτική Εκπαίδευση, No 1 (2021): ΚΡΙΤΙΚΗ ΕΚΠΑΙΔΕΥΣΗ
Additional file 1 of Impaired humoral immunity following COVID-19 vaccination in HTLV-1 carriers
Creators: name: Kameda, Takuro
name: Utsunomiya, Atae
name: Otsuka, Nobuaki
name: Kubuki, Yoko
name: Uchida, Taisuke
name: Shide, Kotaro
name: Kamiunten, Ayako
name: Nakano, Nobuaki
name: Tokunaga, Masahito
name: Miyazono, Takayoshi
name: Ito, Yoshikiyo
name: Yonekura, Kentaro
name: Kawakita, Toshiro
name: Akizuki, Keiichi
name: Tahira, Yuki
name: Karasawa, Masayoshi
name: Hidaka, Tomonori
name: Konagata, Ayaka
name: Taniguchi, Norifumi
name: Nagatomo, Yuma
name: Kogo, Fumiko
name: Shimizu, Koichiro
name: Ueno, Hiroaki
name: Ishizaki, Junzo
name: Takahashi, Naoya
name: Ikei, Yoshihiko
name: Hidaka, Michihiro
name: Yamaguchi, Hideki
name: Shimoda, Kazuya
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Supplementary Material 1: File format: Word (.DOC). Supplementary Table 1: Patient characteristics adjusted by propensity score method using overlap weights. Supplementary Figure 1: Patient flow in this study. Supplementary Figure 2: Assessment of absolute standardized mean differences in covariates and the distribution of weighted cases using the overlap weighting method
Análisis y evaluación de la transaccionalidad del mercado de valores en el financiamiento de las empresas
Creators: name: Ortiz, Francisco
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 350202
subject: Finance

description: Esta investigación explora el análisis y evaluación de la transaccionalidad del mercado de valores en el financiamiento de las empresas, examinando su impacto y efectividad como herramienta para el crecimiento y la inversión empresarial. En los últimos años, los mercados de capital han ganado relevancia como una alternativa de financiamiento, permitiendo a las empresas acceder a fondos mediante diversos instrumentos como acciones, bonos y derivados. El estudio evalúa la relación entre el volumen de transacciones en los mercados de valores y su papel en la mejora de las estructuras de capital y los niveles de liquidez de las empresas.Un aspecto clave es entender cómo la liquidez del mercado influye en las decisiones de los inversionistas y en qué medida la transaccionalidad afecta la valoración de mercado de las empresas. Una alta liquidez facilita transacciones más rápidas y flexibles, atrayendo tanto a inversionistas locales como extranjeros, lo cual puede reducir el costo de capital y mejorar el rendimiento empresarial. La investigación también analiza los riesgos inherentes a los mercados de capital, como la volatilidad de precios y la especulación, que pueden impactar la estabilidad del financiamiento a largo plazo.A través de análisis de datos y estudios de casos, este estudio evalúa cómo un mercado de valores activo y eficiente puede ofrecer a las empresas una fuente alternativa de financiamiento para respaldar su expansión. En conclusión, los hallazgos indican que un entorno dinámico de transacciones en el mercado de valores, junto con regulaciones sólidas, puede mejorar la capacidad de una empresa para atraer inversiones y lograr un crecimiento sostenible.
title: An issue-based approach to organisational legitimacy: the case of Namdeb
Creators: name: Claasen, Cyrlene B.
Publisher: name: The Open University
Year: 2012

description: In this investigative study an issue-based approach is employed to examine the effects of a continuous flux of everyday, dynamic and often interconnected or interrelated political, economic, social, environmental and legislative issues involving mostly external stakeholders. The case study method was used and the issues influencing the legitimacy of Namdeb, a public private joint venture (PPJV) between the Government of Namibia and De Beers, international diamond miner and retailer was investigated. The findings show that a number of interconnected and constant issues collectively influence organisational legitimacy on a daily and continuous basis. Furthermore, most of these issues are moral issues. Moreover, political issues were specifically identified as a major source of adverse impact on organisational legitimacy. On both the theoretical and practical levels, the need for a tool to help with the identification, classification and management of the issues affecting organisational legitimacy was also recognised. To assist with this, a two- dimensional alternative to Suchman's (1995) typology of organisational legitimacy which is considered the reference in the field of legitimacy theory, was developed by taking into consideration issue and legitimacy types. The study was conducted for two main reasons. Firstly, no existing study concentrating on the various collective and everyday issues affecting organisational legitimacy has thus far been embarked upon. Secondly, no empirical evidence based on the direct input, or more precisely points of view of external stakeholders, has been identified in the current literature and yet organisational legitimacy is said to be dependent on some degree of shared agreement among societal constituencies or stakeholders that an organisation is aligned with accepted notions of purpose, endeavor and outcomes.
Abstract formulation of the Miura transform
Creators: name: Iwata, Yoritaka
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Miura transform is known as the transformation between Korteweg de-Vries equation and modified Korteweg de-Vries equation. Its formal similarity to the Cole-Hopf transform has been noticed. This fact sheds light on the logarithmic type transformations as an origin of certain kind of nonlinearity in the soliton equations. In this article, based on the logarithmic representation of operators in infinite-dimensional Banach spaces, a structure common to both Miura and Cole-Hopf transforms is discussed. In conclusion, the Miura transform is generalized as the transform in abstract Banach spaces, and it is applied to the higher order abstract evolution equations.
description: for ver.2, typos are corrected
Ο Θάνος Μικρούτσικος και η αισθητική της αντίστασης
Creators: name: Δαφέρμος, Μανώλης
Publisher: name: Κριτική Εκπαίδευση
Year: 2021

description: The purpose of this paper is to examine the legacy of Thanos Mikroutsikos, one of the leading composers of Greek contemporary music. He created appropriate musical forms to express the voices of Vladimir Mayakovsky, Bertold Brecht, Nâzım Hikmet, Giannis Ritos, Manos Eleutheriou, amongst others. Mikroutsikos’s legacy is examined in the light of the aesthetics of resistance. This form of aesthetics refers to the art that resists oppression and encourages the development of active subjects, oriented towards social transformation.
description: Κριτική Εκπαίδευση, No 1 (2021): ΚΡΙΤΙΚΗ ΕΚΠΑΙΔΕΥΣΗ
Spin and orbital structure of uranium compounds on the basis of a j-j coupling scheme
Creators: name: Hotta, Takashi
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Key role of orbital degree of freedom to understand the magnetic structure of uranium compounds is discussed from a microscopic viewpoint by focusing on typical examples such as UMGa$_5$ (M=Ni and Pt) and the mother compound UGa$_3$. By analyzing an orbital degenerate Hubbard model constructed from the $j$-$j$ coupling scheme in the cubic system, we obtain the phase diagram including several kinds of magnetic states. Especially, in the parameter region corresponding to actual uranium compounds, the phase diagram suggests successive transitions among paramagnetic, magnetic metallic, and insulating Néel states, consistent with the experimental results for AuCu$_3$-type uranium compounds. Furthermore, taking account of tetragonal effects such as level splitting and reduction of hopping amplitude along the z-axis, an orbital-based scenario is proposed to understand the change in the magnetic structure from G- to A-type antiferromagnetic phases, experimentally observed in UNiGa$_5$ and UPtGa$_5$.
description: 10 pages. 8 figures embedded in the text. To appear in Phys. Rev. B
Suppl Methods & Figs.pdf
Creators: name: Kaunitz, Jonathan
Publisher: name: figshare
Year: 2020
Subjects: subject: Physiology
subject: FOS: Biological sciences

description: Two supplemental figures:Fig. S1 Luminal LPS content in gastrointestinal segments of fed ratsFig. S2 Epithelial brush border continuity of the jejunal villi after oleic acid (OA)/taurocholic acid (TCA) exposure.
Additional file 1 of Cost effectiveness of preemptive school closures to mitigate pandemic influenza outbreaks of differing severity in the United States
Creators: name: Dauelsberg, Lori R.
name: Maskery, Brian
name: Joo, Heesoo
name: Germann, Timothy C.
name: Del Valle, Sara Y.
name: Uzicanin, Amra
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1.
Τηλεκπαίδευση: Το μέσο, το μήνυμα και η κριτική παιδαγωγική
Creators: name: Λιάμπας, Τάσος
Publisher: name: Κριτική Εκπαίδευση
Year: 2021

description: DISTANCE LEARNING: MEDIUM, MESSAGE AND CRITICAL PEDAGOGYDistance learning among pandemic COVID-19 extends the educational inequality, as it fails to effect on mental, emotional and social development of students. Implementing the Theory and Practice of Critical Pedagogy for teaching and organized activities in the context of student Zone of Proximal Development, which is based on the direct, lively and proactive teacher mediation, are created conditions for the closure of the gap that developed in education of weakest students by the distance learning.
description: Κριτική Εκπαίδευση, No 1 (2021): ΚΡΙΤΙΚΗ ΕΚΠΑΙΔΕΥΣΗ
Tricritical behavior in MnSi at nearly hydrostatic pressure
Creators: name: Petrova, Alla E.
name: Krasnorussky, Vladimir
name: Sarrao, John
name: Stishov, Sergei M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: AC magnetic susceptibility of a single crystal of MnSi was measured along the ferromagnetic phase-transition line up to a pressure of 0.8 GPa created by compressed helium. The results show that the tricritical point is situated at much lower pressure and at significantly higher temperature (Ptr~0.355 GPa, Ttr~25.2 K) than was reported previously (~1.2 GPa,~12 K). These new observations put certain constraints on the origin of the tricritical point in MnSi.
description: 6 pages, 6 figures, reference [16] on page 5 removed
Spinning the wheel : a comparative study of the use of folktales in Nazi Germany and in contemporary fiction for young adults
Creators: name: George, Kallie
Publisher: name: University of British Columbia
Year: 2011

description: This thesis compares a selection of contemporary Holocaust novels for young adults that rework Grimm folklore to the Nazi regime's interpretation and propagandistic use of the same Grimm folklore. Using the methodology of intertextuality theory, in particular Julia Kristeva's concepts of monologic and dialogic discourse, this thesis examines the transformation of the Grimms' folktales "Hansel and Gretel," "Briar Rose," "Aschenputtel" and "Fitcher's Bird" in Louise Murphy's The True Story of Hansel and Gretel, Jane Yolen's Briar Rose and Peter Rushforth's Kindergarten.
Low mass stars, brown dwarf candidates and the mass function of the young open cluster NGC 2547
Creators: name: Jeffries, R. D.
name: Naylor, Tim
name: Devey, C. R.
name: Totten, E. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a catalogue of RIZ photometry over an area of 0.855 square degrees, centred on NGC 2547. The survey is substantially complete to limits of R_c=21.5, I_c=19.5, Z=19.5. We use the catalogue to define NGC 2547 candidates with masses of about 0.05-1.0 M_sun. After correcting for incompleteness and contamination by foreground field dwarfs, we investigate the mass function of the cluster, its binary content, and search for evidence of mass segregation among lower mass stars. There is evidence for mass segregation between high (>3 M_sun) and lower mass stars, but over the range 0.1
description: 24 pages, accepted for MNRAS. Version with better Figures and electronic catalogues available from http://www.astro.ex.ac.uk/people/timn/Catalogues/description.html
Interface-resolved simulation of the evaporation and combustion of a fuel droplet suspended in normal gravity
Creators: name: Saufi, Abd Essamade
name: Frassoldati, Alessio
name: Faravelli, Tiziano
name: Cuoci, Alberto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: An interface-resolved simulation of the combustion of a fuel droplet suspended in normal gravity is presented in this work, followed by an extensive analysis on the physical aspects involved. The modeling is based on DropletSMOKE++, a multiphase solver developed for the modeling of droplet vaporization and combustion in convective conditions. A wide range of phenomena can be described by the model, including the interface advection, the phase-change, the combustion chemistry, non-ideal thermodynamics and multicomponent mixtures. To our knowledge, this is the most detailed simulation performed on this configuration, providing a useful theoretical and numerical support for the experimental activity on this field. A recent experimental work is used as a reference, in which a methanol droplet is suspended on a quartz fiber and ignited at different oxygen concentrations. The numerical analysis offers a detailed insight into the physics of the problem and a satisfactory agreement with the experiments in terms of diameter decay, radial temperature profiles and sensitivity to the oxygen concentration. The vaporization rate is affected by the thermal conduction from the fiber, due to the high temperatures involved. Moreover, the fiber perturbs the flame itself, providing quenching at its surface. The combustion physics is compared to the one predicted at zero-gravity, evidencing a lower standoff-ratio, a higher flame temperature and an intense internal circulation. The distribution of the species around the droplet shows (i) a local accumulation of intermediate oxidation products at the fiber surface and (ii) water absorption in the liquid phase, affecting the vaporization rate.
The Making of the Standard Model
Creators: name: Weinberg, Steven
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This is the edited text of a talk given at CERN on Septembr 16, 2003, as part of a celebration of the 30th anniversary of the discovery of neutral currents and the 20th anniversary of the discovery of the W and Z particles.
description: 21 pages
Additional file 1 of Lung molecular and histological changes in type 2 diabetic rats and its improvement by high-intensity interval training
Creators: name: Rajizadeh, Mohammad Amin
name: Khoramipour, Kayvan
name: Joukar, Siyavash
name: Darvishzadeh-Mahani, Fatemeh
name: Iranpour, Maryam
name: Bejeshk, Mohammad Abbas
name: Zaboli, Maryam Doustaki
Publisher: name: figshare
Year: 2024
Subjects: Biochemistry
Medicine
Cell Biology
Chemical Sciences not elsewhere classified
Cancer

description: Additional file 1.
Triggered massive-star formation on the borders of Galactic HII regions. II. Evidence for the collect and collapse process around RCW 79
Creators: name: Zavagno, A.
name: Deharveng, L.
name: Comeron, F.
name: Brand, J.
name: Massi, F.
name: Caplan, J.
name: Russeil, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present SEST-SIMBA 1.2-mm continuum maps and ESO-NTT SOFI JHK images of the Galactic HII region RCW 79. The millimetre continuum data reveal the presence of massive fragments located in a dust emission ring surrounding the ionized gas. The two most massive fragments are diametrically opposite each other in the ring. The near-IR data, centred on the compact HII region located at the south-eastern border of RCW 79, show the presence of an IR-bright cluster containing massive stars along with young stellar objects with near-IR excesses. A bright near- and mid-IR source is detected towards maser emissions, 1.2 pc north-east of the compact HII region centre. Additional information, extracted from the Spitzer GLIMPSE survey, are used to discuss the nature of the bright IR sources observed towards RCW 79. Twelve luminous Class I sources are identified towards the most massive millimetre fragments. All these facts strongly indicate that the massive-star formation observed at the border of the HII region RCW 79 has been triggered by its expansion, most probably by the collect and collapse process.
description: 14 pages, 15 figures. Accepted for publication in A&A. The images have been highly compressed for astro-ph. A version of this paper with higher-resolution figures is available at http://www.oamp.fr/matiere/rcw79.pdf
Η παραγωγή του κοινωνικού χώρου ως διαδικασία συγκρότησης θεωριών για την εκπαίδευση
Creators: name: Νομικού, Χριστίνα
name: Σκορδούλης, Κώστας
Publisher: name: Κριτική Εκπαίδευση
Year: 2021

description: Η εργασία αυτή αρχικά παρουσιάζει ορισμένα στοιχεία των θεωρητικών εργασιών των Henri Lefevre, Fredrick Jameson και David Harvey που υποστήριξαν ότι ο χώρος είναι προϊόν της εξουσίας και της πολιτικής. Στη συνέχεια, αναδεικνύει την αναγκαιότητα η Κριτική Παιδαγωγική να περιλαμβάνει κατευθύνσεις οι οποίες συνδέονται με την κατανόηση του χώρου ως κοινωνικά παραγόμενου και βοηθούν τους μαθητές να αναγνωρίσουν τους τρόπους με τους οποίους οι χωρικές διευθετήσεις χρησιμοποιούνται στην κυριαρχία και την καταπίεση.
description: Κριτική Εκπαίδευση, No 1 (2021): ΚΡΙΤΙΚΗ ΕΚΠΑΙΔΕΥΣΗ
Entropic dynamics on Gibbs statistical manifolds
Creators: name: Pessoa, Pedro
name: Costa, Felipe Xavier
name: Caticha, Ariel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Entropic dynamics is a framework in which the laws of dynamics are derived as an application of entropic methods of inference. Its successes include the derivation of quantum mechanics and quantum field theory from probabilistic principles. Here we develop the entropic dynamics of a system the state of which is described by a probability distribution. Thus, the dynamics unfolds on a statistical manifold which is automatically endowed by a metric structure provided by information geometry. The curvature of the manifold has a significant influence. We focus our dynamics on the statistical manifold of Gibbs distributions (also known as canonical distributions or the exponential family). The model includes an "entropic" notion of time that is tailored to the system under study; the system is its own clock. As one might expect, entropic time is intrinsically directional; there is a natural arrow of time which is lead by entropic considerations. As illustrative examples we discuss dynamics on a space of Gaussians and the discrete 3-state system.
title: Organisational change and resistance : an oral history of the rundown of a long-stay institution for people with learning difficulties
Creators: name: Ingham, Nigel William
Publisher: name: The Open University
Year: 2012

description: The thesis explores the rundown process of one large long-stay hospital for people with learning difficulties in the north west of England during the later years of the twentieth century. It does this through a multi-voiced account which draws on oral history interview and documentary data relating to managers, staff and relatives. This polyphonic approach, focused upon those who had agency in the rundown of the institution, enables an in-depth examination of the processes and meanings of such an immense organisational change.

The research found that the contraction of the Royal Albert Hospital, Lancaster was a complex process, involving high levels of managerial acumen, compassion and enthusiasm. However, although presented by those implementing change as being predicated upon sound ethical and ideological principles, the study also indicated that this institutional rundown was shaped significantly by a neo-liberal agenda bound up with imperatives of logistics and cost. Tensions and contradictions associated with the latter were partly reflected in the viewpoints of staff and families who were critical of elements of the policy and practice of organisational downsizing. The oral history data in particular suggests, however, that these oppositional perspectives were discredited and distanced within the constraints of a dominant organisational narrative which espoused the absolute rightness of institutional closure. Furthermore, this ethically infused rhetoric underplayed the negative impact of the rundown on employees as they experienced insecurities associated with the loss of a meaningful and, in many instances, long-standing workplace.

The research contributes to the literature on the social history of learning disability,especially pertaining to institutional closures and deinstitutionalisation; organisational studies (the management of change); deindustrialisation; and oral history methodology.
Διδακτική και Ιδεολογία (Σημειώσεις για μια έρευνα)
Creators: name: Νούτσος, Χαράλαμπος
Publisher: name: Κριτική Εκπαίδευση
Year: 2021

description: Η εργασία αυτή υποβάλλει σε κριτική το ιδεολόγημα για τον κοινωνικά και πολιτικά ουδέτερο χαρακτήρα της Διδακτικής το οποίο συγκροτεί μια σχολική παραλλαγή της ιδεολογίας του ουδέτερου κράτους και αναπαράγεται σήμερα σε προσεγγίσεις θεμάτων της ιστορίας της νεοελληνικής εκπαίδευσης. Αυτή η κριτική συνδέεται με τη διατύπωση συγκεκριμένων γενικών προτάσεων για τη συγκρότηση διδακτικών πρακτικών που είναι αντίπαλες στις κυρίαρχες και θεμελιώνονται στη μελέτη του έργου του Antonio Gramsci.
description: Κριτική Εκπαίδευση, No 1 (2021): ΚΡΙΤΙΚΗ ΕΚΠΑΙΔΕΥΣΗ
Protocol Requirements for Self-organizing Artifacts: Towards an Ambient Intelligence
Creators: name: Gershenson, Carlos
name: Heylighen, Francis
Publisher: name: arXiv
Year: 2004
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We discuss which properties common-use artifacts should have to collaborate without human intervention. We conceive how devices, such as mobile phones, PDAs, and home appliances, could be seamlessly integrated to provide an "ambient intelligence" that responds to the user's desires without requiring explicit programming or commands. While the hardware and software technology to build such systems already exists, as yet there is no standard protocol that can learn new meanings. We propose the first steps in the development of such a protocol, which would need to be adaptive, extensible, and open to the community, while promoting self-organization. We argue that devices, interacting through "game-like" moves, can learn to agree about how to communicate, with whom to cooperate, and how to delegate and coordinate specialized tasks. Thus, they may evolve a distributed cognition or collective intelligence capable of tackling complex tasks.
description: To be presented at 5th International Conference on Complex Systems
Ο Παντελής Πουλιόπουλος για την εκπαίδευση και τους εκπαιδευτικούς
Creators: name: Πουλιόπουλος, Παντελής
Publisher: name: Κριτική Εκπαίδευση
Year: 2021

description: Απάντηση του Π. Πουλιόπουλου στην έρευνα του «ΔΙΔΑΣΚΑΛΙΚΟΥ ΒΗΜΑΤΟΣ»
description: Κριτική Εκπαίδευση, No 1 (2021): ΚΡΙΤΙΚΗ ΕΚΠΑΙΔΕΥΣΗ
Balanced presentations of the trivial group on two generators and the Andrews-Curtis conjecture
Creators: name: Miasnikov, Alexei D.
name: Myasnikov, Alexei G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Group Theory (math.GR)
subject: Symbolic Computation (cs.SC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 20E05, 20F05, 68T05 (Primary), 57M05,57M20. (Secondary)

description: The Andrews-Curtis conjecture states that every balanced presentation of the trivial group can be reduced to the standard one by a sequence of the elementary Nielsen transformations and conjugations. In this paper we describe all balanced presentations of the trivial group on two generators and with the total length of relators <= 12. We show that all these presentations satisfy the Andrews-Curtis conjecture.
description: 7 pages, no figures
Search for lepton flavour violating muon decay mediated by a new light particle in the MEG experiment
Creators: name: Baldini, A. M.
name: Berg, F.
name: Biasotti, M.
name: Boca, G.
name: Cattaneo, P. W.
name: Cavoto, G.
name: Cei, F.
name: Chiappini, M.
name: Chiarello, G.
name: Chiri, C.
name: Corvaglia, A.
name: de Bari, A.
name: De Gerone, M.
name: Francesconi, M.
name: Galli, L.
name: Gatti, F.
name: Grancagnolo, F.
name: Grassi, M.
name: Grigoriev, D. N.
name: Hildebrandt, M.
name: Hodge, Z.
name: Ieki, K.
name: Ignatov, F.
name: Iwai, R.
name: Iwamoto, T.
name: Kobayashi, S.
name: Kettle, P. -R.
name: Kyle, W.
name: Khomutov, N.
name: Kolesnikov, A.
name: Kravchuk, N.
name: Kuchinskiy, N.
name: Libeiro, T.
name: Lim, G. M. A.
name: Malyshev, V.
name: Matsuzawa, N.
name: Meucci, M.
name: Mihara, S.
name: Molzon, W.
name: Mori, Toshinori
name: Mtchedilishvili, A.
name: Nakao, M.
name: Natori, H.
name: Nicolò, D.
name: Nishiguchi, H.
name: Nishimura, M.
name: Ogawa, S.
name: Onda, R.
name: Ootani, W.
name: Oya, A.
name: Palo, D.
name: Panareo, M.
name: Papa, A.
name: Pettinacci, V.
name: Pizzigoni, G.
name: Popov, A.
name: Renga, F.
name: Ritt, S.
name: Rozhdestvensky, A.
name: Rossella, M.
name: Sawada, R.
name: Schwendimann, P.
name: Signorelli, G.
name: Stoykov, A.
name: Tassielli, G. F.
name: Toyoda, K.
name: Uchiyama, Y.
name: Usami, M.
name: Voena, C.
name: Yanai, K.
name: Yudin, Yu. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the first direct search for lepton flavour violating muon decay mediated by a new light particle X, $μ^+ \to \mathrm{e}^+\mathrm{X}, \mathrm{X} \to γγ$. This search uses a dataset resulting from $7.5\times 10^{14}$ stopped muons collected by the MEG experiment at the Paul Scherrer Institut in the period 2009--2013. No significant excess is found in the mass region 20--45 MeV/c$^2$ for lifetimes below 40 ps, and we set the most stringent branching ratio upper limits in the mass region of 20--40 MeV/c$^2$, down to $\mathcal{O}(10^{-11})$ at 90\% confidence level.
MIGNEX Policy Brief D6.6 (b) - The overlooked opportunities of short distance and short-term migration
Creators: name: Erdal, Marta Bivand
name: Godin, Marie
name: Fitzmaurice, Maisie
Publisher: name: Peace Research Institute Oslo
Year: 2023

description: Listening to how young adults talk about migration shows that migration is often thought of as short-distance and temporary. Tailored development policies are key to enhancing the benefits of such migration.

Key Takeaways

Long-distance international migration receives much attention, though it is a small part of global mobilities. Most migration is internal to countries, or within regions.

National policies insufficiently recognise and facilitate short-distance and short-term migration, to the detriment of development processes, especially in urban areas.

Investing in flexible migration pathways, that facilitate short-distance and short-term migration, is apt and supportive of the Global Compact for Migration.
title: Population genetic structure of a planktonic diatom in the Gulf of naples : Pseudo-nitzschia multistriata
Creators: name: Tesson, Sylvie Vaïana Marie
Publisher: name: The Open University
Year: 2010

description: The planktonic diatom Pseudo-nitzschia multistriata appeared in plankton samples taken at the MareChiara station in the Gulf of Naples in 1995 and has appeared ever since in autumn, and since 2004 also in summer. This thesis focuses on population genetic structure of the species using the Internal Transcribed Spacers in the rDNA as well as seven polymorphic microsatellites.

Cells isolated from plankton samples taken in 2008 and 2009 were grown into strains from which ITS-sequences and microsatellite fingerprints were gathered. Microsatellite screening uncovered two populations in sympatry in 2008, only one of which reappeared in 2009. The ITS sequences of the strains were of distinct types,called A-type, B-type and a mixed type (NB). The two populations also showed distinct ITS-type proportions, supporting their distinctness. Intra-population proportions of ITS-types among strains were similar in summer and autumn 2009,indicating stability over the growth season. But proportions differed between 2008 and 2009, suggesting substantial immigration the second year. These results suggest that, P. multistriata in the Mediterranean consists of a dynamic patchwork of populations.

Microsatellite inheritance was studied over the vegetative and sexual parts of the biennial life cycle of P. multistriata. Substitutions were recorded in strains rescreened after several months of maintenance. Longer microsatellites changed more frequently than shorter ones and di-nucleotide ones more than tri-nucleotide ones.Strains interbred independently from population assignment. Comparisons of parental and offspring genotypes showed microsatellite inheritance patterns generally following Mendelian rules. Genetic identity of sister cells emerging from zygotes formed on the same parental gametangia indicate that one of the two nuclei resulting from the first meiotic division is eliminated. Each maternal gamete fuses with a paternal gamete, resulting in two zygotes, which, in this case, were genotypically identical. Thus, mutations boost allele diversity and biennial sexual reproduction boosts ITS-genotype variability and genotypic diversity.
Roda Sst exercise
Creators: name: Hampson, Gary
name: Lonergan, Lidia
name: Martinius, Allard
Publisher: name: figshare
Year: 2020
Subjects: subject: 40310 Sedimentology
subject: FOS: Earth and related environmental sciences
subject: Geology
subject: 40309 Petroleum and Coal Geology
subject: 40311 Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy)

description: This item consists of materials for a short (one-day) virtual / remote fieldtrip to the Roda Sandstone, Tremp-Graus Basin, Spanish Pyrenees. This unit is widely visited by geological fieldtrips with an interest in sedimentology, stratigraphy, and reservoir analogues for hydrocarbon production and CO2 storage. Material was assembled by Gary Hampson and Lidia Lonergan (Imperial College London), and leans heavily on previous fieldtrip material compiled by, and discussions with, Allard Martinius (Technical University of Delft / Equinor).
The material presents a tour of five outcrop localities (c. 4-5 hours) followed by a subsurface correlation exercise between three wells in the analogous hydrocarbon reservoir of the Troll Field (c. 2-3 hours). The exercise builds on outcrop observations. In combination, this material is intended as a demonstration of how a virtual / remote fieldtrip can be run, and was assembled for such a fieldtrip (by the 2019-20 Petroleum Geoscience MSc class, Imperial College London) in response to the Covid-19 pandemic. The contents include:- a fieldguide including an exercise (.docx format)- accompanying presentation material (.pptx format)- two high-resolution photopanoramas (.pdf format)- five narrated videos that introduce the field localities (.mp4 format)
The videos were pre-recorded from the presentation material to introduce each locality on the fieldtrip, prior to small-group work sketching and interpreting photopanoramas and/or related group discussions. They are included here to give an idea of potential remote teaching style - it is quick to record similar narrated videos that are tailored to your own specific audience (although you are welcome to use these videos if you consider them to be fit for your purpose: bear in mind that each of these videos was recorded in one take in time-limited circumstances!).
There is a sixth video that presents a solution to the well-correlation panel. This video is available to fieldtrip leaders and teachers on request - please email Gary Hampson (g.j.hampson@imperial.ac.uk) for a copy. Feedback is also welcome, to the same email address.
Milky Way Accelerometry via Millisecond Pulsar Timing
Creators: name: Phillips, David F.
name: Ravi, Aakash
name: Ebadi, Reza
name: Walsworth, Ronald L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The temporal stability of millisecond pulsars is remarkable, rivaling even some terrestrial atomic clocks at long timescales. Using this property, we show that millisecond pulsars distributed in the galactic neighborhood form an ensemble of accelerometers from which we can directly extract the local galactic acceleration. From pulsar spin period measurements, we demonstrate acceleration sensitivity with about 1$σ$ precision using 117 pulsars. We also present results from a complementary analysis using orbital periods of 13 binary pulsar systems that eliminates systematics associated with pulsar braking. This work is a first step toward dynamically measuring acceleration gradients that will eventually inform us about the dark matter density distribution in the Milky Way galaxy.
description: 6 pages, 3 figures, Supplemental Material included as ancillary file
Additional file 1 of I-REFF diagrams: enhancing transparency in systematic review through interactive reference flow diagrams
Creators: name: Walker, Vickie R.
name: Lemeris, Courtney R.
name: Magnuson, Kristen
name: Sibrizzi, Christopher A.
name: Shipkowski, Kelly A.
name: Taylor, Kyla W.
name: Rooney, Andrew A.
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Biotechnology
Science Policy
Mental Health

description: Additional file 1. (Supplemental) Interactive Reference Flow (I-REFF) Diagrams: Purpose and Process for Developing.
title: A functional model of similarity
Creators: name: Whalley, Peter C.
Publisher: name: The Open University
Year: 1984

description: In the first chapters, the prevalent conception of the nature of similarity is shown to be too narrow, and the argument is developed that models of similarity must encompass both analytic and synthetic components. Some general problems of measurement and the testing of psychological models are also discussed.

A review of the philosophical treatment of the concept of similarity is made in order to understand the origins of the models found in the present psychological literature. These are then analysed in terms of their implicit object representations and cognitive processes. The distinction between the'class inclusion' and 'distance relation' models of similarity is shown tobe qualitative in nature, and to correspond to the analytic-synthetic distinction in terms of cognitive process.

A functional model of the psychological processes and object representations involved in similarity judgements is then proposed. The fundamental idea involved in this model is that the global properties of referents are synthetically evaluated in terms of their contextual relations, whilst an analytic 'pattern matching' of local properties is made. Various theoretical aspects of the model are examined experimentally, and its general applicability is indicated in a series of applied studies.

The scope of the argument is finally broadened to encompass a development of Torgerson's (196.5) conception of the nature of the dimensions resulting from MDS analysis. Dimensions may be considered as 'virtual' artifacts of the experimental task and the individual's conception of it. This possibility allows the methodology to escape the dominating influence of its psychophysical tradition, and become a conceptually deeper tool for cognitive psychology.
Towards global phosphorus security through nutrient reuse
Creators: name: Cordell, Dana
name: Cordell, Dana
Publisher: name: Unknown
Year: 2016
Subjects: Food Consumption/Nutrition/Food Safety
Food Security and Poverty

description: It is not widely recognised that the reuse of phosphorus will be crucial to achieving future food security, supporting farmer livelihoods and buffering against emerging geopolitical risks. All farmers need access to phosphorus fertilisers to grow crops, yet just five countries control 85% of the world’s main source: phosphate rock. Morocco alone controls three-quarters of the world’s remaining phosphate. These phosphate reserves are non-renewable, and becoming increasingly scarce and expensive. Already one in six farmers cannot access fertiliser markets. The 800% phosphate price spike in 2008 demonstrated the vulnerability of global and local food systems to even a short-term disruption in supply. At the same time, a staggering 80% of phosphorus is lost or wasted in the supply chain between mine, farm and fork. Much of this ends up in rivers and lakes, leading to widespread nutrient pollution and algal blooms. The good news is that phosphorus can be recovered and reused from all organic sources in the food system: food waste, human excreta, manure, crop waste. Indeed, there are over 50 low- to high-tech solutions. However, phosphorus vulnerability is very context-specific, and what works in one country may be inappropriate or ineffective in another region. This case study highlights a path forward, including examples from Vietnam, Malawi and Australia. Investing in phosphorus reuse creates locally available ‘renewable fertilisers’. This simultaneously: reduces dependence on imports from geopolitically risky regions and therefore buffers against future price spikes and supply disruptions; reduces phosphorus waste in the food supply chain; and reduces the risk of nutrient pollution.
A Geometric Realization of Spin Representations and Young diagrams from Quiver Varieties
Creators: name: Savage, Alistair
Publisher: name: arXiv
Year: 2003
Subjects: subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B10, 16G20

description: Applying the techniques of an earlier paper with Frenkel, we develop a geometric realization of spin representations and Clifford algebras. In doing so, we give an explicit parametrization of the irreducible components of Nakajima varieties of type D in terms of Young diagrams. We explicity compute the geometric action of the Lie algebra and are able to extend the geometric action to the entire Clifford algebra used in the classical construction of the spin representations.
description: 21 pages, 9 figures; v2: Minor Corrections
The role of Ahi-1 and BCR-ABL in leukemic transformation
Creators: name: Kennedy, Sean
Publisher: name: University of British Columbia
Year: 2011

description: Ahi-1 was first identified as an insertional target of Abelson virus in murine leukemias. Subsequently Ahi-1 was shown to encode a protein containing a SH3 domain and multiple WD40 repeats. Certain isoforms of Ahi-1 are upregulated in a variety of human leukemic cells, including primitive leukemic cells from patients with chronic myeloid leukemia. To investigate the types of effects that increased levels of Ahi-1 protein(s) may have on hematopoietic cells (both in the presence and absence of p210[superscript]BCR-ABL), I compared both the biological and biochemical properties of several cloned lines of BaF/3 cells that had been transduced with either BCR-ABL or Ahi-1 or both control vectors. Overexpression of Ahi-1 mimicked the effect of BCR-ABL in reducing the growth factor dependence of BaF/3 cells and in enhancing their growth in response to IL-3. The response of the doubly-transduced cells was even greater. However, of these many signalling intermediates surveyed by Western blot analysis, only a few showed significant changes. In cells transduced with Ahi-1 alone and cultured in the presence of IL-3 (but not in the absence of IL-3), STAT5 phosphorylation was increased. SHIP expression was also increased in the same cells but only when they were cultured in the absence of IL-3. In cells that had been co-transduced with BCR-ABL and Ahi-1, both the level and kinase activity of p210[superscript]BCR-ABL appe a r e (j enhanced and in these co-transduced cells, the known ability of BCR-ABL to suppress SHIP expression was dominant over the stimulating effect of overexpressing Ahi-1. Unexpectedly, BCR-ABL transduction of BaF/3 cells strongly upregulated their endogenous Ahi-1 expression. Taken together, these preliminary findings are consistent with a model in which Ahi-1 alone can behave as a weak oncogene in hematopoietic cells, and can also co-operate with BCR-ABL to enhance the combined effect achieved.
MIGNEX Policy Brief D9.5 (b) - Is policy coherence a smokescreen for a more restrictive migration agenda?
Creators: name: Godin, Marie
name: Jumbert, Maria Gabrielsen
name: Schweers, Julia
name: Lebon-McGregor, Elaine
name: Ike, Niels
Publisher: name: Peace Research Institute Oslo
Year: 2024

description: Historically, the EU aimed for policy coherence across development and migration policies to prevent undermining development in other countries. Yet the meaning of ‘coherence’ has shifted.

Key Takeaways

In the EU policy context, ‘policy coherence’ now refers to ‘efficient’ migration policies with a focus on returns, while development policies are conceived mainly to manage and prevent migration.

The depoliticized language of “policy coherence” helps to overcome internal disputes by maintaining the same language yet changing its meaning.

As the New EU Pact is implemented, it is important to understand the history of coherence as a concept, particularly around return policies and the trend towards stricter migration policies.
Door Signs to Promote Public Droplet Safety Amidst COVID-19
Creators: name: Rodriguez-Palacios, Alex
Publisher: name: figshare
Year: 2020
Subjects: subject: Diseases
subject: Health Care
subject: 111712 Health Promotion
subject: FOS: Health sciences
subject: 111704 Community Child Health
subject: 111708 Health and Community Services
subject: 111705 Environmental and Occupational Health and Safety
subject: 111799 Public Health and Health Services not elsewhere classified

description: Door Signs ready for printing to motivate the wearing of face covers / cloth facemasks in public to help control of dissemination of respiratory droplets and environmental contamination.
Oral and respiratory droplets, which may carry respiratory pathogens, including COVID-19, are always produced as we talk, cough, or sneeze.________________________________Current health guidelines suggest the use of cloth masks. Unfortunately, their use in public is not widely adopted.A great choice to help motivate the use of face covers, now and in future pandemics, could be the voluntary and synchronized use of door signs which may serve as gentle reminders to promote droplet public safety among the public, in both public and private locales. Because a ‘scarf’ is not a mask, but could serve for ‘droplet control’, it is advisable to use more inclusive expressions or terms, such as Facecovers, to improve their adoption and increase the cleanliness of our environment. To avoid confusion, droplet control signs should make a distinction between ‘textile facecovers’ and ‘medical facemasks’ to not promote the purchase of medical supplies, which are needed by health workers.Various household textiles, especially in multiple layers, can retain liquid droplets, as effectively as medical facemasks.
Fresh and Recent evidence on the value of facecovers and textiles can be found here:✺Howard, J. et al. Face Masks Against COVID-19: An Evidence Review. Preprints 2020, 2020040203 https://www.preprints.org/manuscript/202004.0203/v1.
✺ Rodriguez-Palacios A. et al. Textile Masks and Surface Covers - A 'Universal Droplet Reduction Model' Against Respiratory Pandemics, medRxiv 2020.04.07.20045617; doi: https://doi.org/10.1101/2020.04.07.20045617. ✺ Rodriguez-Palacios A. et al. Nonmedical Masks in Public for Respiratory Pandemics: Droplet Retention by Two-Layer Textile Barrier Fully Protects Germ-free Mice from Bacteria in Droplets. bioRxiv 2020.04.06.028688; doi: https://doi.org/10.1101/2020.04.06.028688
Images Copyright © 2020 by Alex Rodriguez-Palacios. Published 04.26.2020. License Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0). For high-resolution editable files or for commercial use contact: axr503@icloud.com
The Intention of Intention
Creators: name: Casares, Ramón
Publisher: name: figshare
Year: 2021
Subjects: subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology

description: For Putnam in Representation and Reality, there cannot be any intentional science, thus dooming cognitive science. His argument is that intentional concepts are functional, and that functionalism cannot explain anything because "everything has every functional organization", providing a proof. Analyzing his proof, we find that Putnam is assuming an ideal interpreting subject who can compute effortlessly and who is not intentional. But the subject doing science is a human being, and we are not that way. Therefore, in order to save cognitive science, we propose to replace the ideal subject with a real and intentional human subject, and we propose to model intentionality by using a problem theory which is an intuitionist set theory where the resolving subject is a computing device. We are intentional because we are living beings, where life is the intention of not to die, so we are embodied intentions designed by evolution. We are real and then we have to compute our resolutions to the survival problem, and fortuitously we are computationally Turing complete, so our language is complete and then full and self referable. In summary, evolutionary subjectivism modeled as problem solving by computing should save cognitive science. Or, in other words, we are proposing to update Kant with Darwin and Turing.