cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Archaeological investigations at The Bostle, Bronze Age and Anglo-Saxon barrow cemeteries, Balsdean, East Sussex, 1997.
Creators: name: McKinley, Jacqueline I
Publisher: name: Archaeology Data Service
Year: 2006

description: Sussex Archaeological Collections, 142, 25-44
description: In the summer of 1997, an archaeological monitoring programme by Wessex Archaeology during trenching along the route of a water pipeline from Falmer to Balsdean, culminated in an excavation at The Bostle adjacent to the scheduled Bronze Age and Anglo-Saxon barrow cemetery. A small, mixed rite Bronze Age cemetery was excavated including four adult cremation burials, two of which were securely dated to the Early Bronze Age period, and five infant inhumation burials, one of which was radiocarbon dated to the Late Bronze Age. Four Saxon ring-ditches were excavated, three of which surrounded central graves containing the remains of inhumation burials. Evidence suggests that at least one of the latter was coffined and one shrouded. A radiocarbon date range of AD 640--879 was obtained from the coffined burial. The temporal and spatial extent of The Bostle cemeteries has been shown to be greater than was previously appreciated. The dating of the Bronze Age burials and implied temporal variation in rite carries interesting implications for the understanding of Bronze Age mortuary rites and how they may have reflected the society burying its dead at The Bostle. Includes
Corporate environmentalism and the reclamation of dormant properties : Giant Nickel, a case study
Creators: name: Meyer, Sharon
name: Gregr, Edward J.
Publisher: name: The University of British Columbia
Year: 2009

description: Mining companies occasionally, through acquisition or purchase, inherit old mining sites. These mining sites may contain exploration potential or the potential for new mine development, and most contain environmental liabilities. This paper describes how one company has evaluated their property holdings and, where the potential for further exploration or development is remote, has developed a strategy for reducing liability by reclaiming these dormant facilities. Citing the example of the Giant Nickel property, located near Hope, B.C., Homestake Canada Inc's reclamation strategy will be followed from the first stage of site assessment, hazard identification, and reclamation work scheduling, through reclamation activities at the site, including the reclamation of the mill site and tailings ponds, closure of all workings open to the surface and the disposition of a collapsed crown pillar. This paper will also outline the steps taken to ensure that the reclamation work effectively accomplished the goals of the reclamation strategy.
Drosophila mitchelli Hardy 1965
Creators: name: Rampasso, Augusto Santos
name: O'Grady, Patrick Michael
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Agaricales
Psathyrellaceae
Drosophila
Drosophila mitchelli

description: Drosophila mitchelli Hardy, 1965
Distribution: Endemic: Hawaii, Molokai
 Additional References: Carson & Kaneshiro (1976); Hardy & Kaneshiro (1975b); Magnacca & O’Grady (2009); O’Grady et al. (2011)
description: Published as part of Rampasso, Augusto Santos & O'Grady, Patrick Michael, 2022, Distribution and Taxonomy of Endemic and Introduced Drosophilidae in Hawaii, pp. 1-80 in Zootaxa 5106 (1) on page 44, DOI: 10.11646/zootaxa.5106.1.1, http://zenodo.org/record/6336841
The CWKB particle production and classical condensate in de Sitter spacetime
Creators: name: Biswas, S.
name: Chowdhury, I.
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The complex time WKB approximation is an effective tool in studying particle production in curved spacetime. We use it in this work to understand the formation of classical condensate in expanding de Sitter spacetime. The CWKB leads to the emergence of thermal spectrum that depends crucially on horizons (as in de Sitter spacetime) or observer dependent horizons (as in Rindler spacetime). A connection is sought between the horizon and the formation of classical condensate. We concentrate on de Sitter spacetime and study the cosmological perturbation of $k=0$ mode with various values of $m/H_0$. We find that for a minimally coupled free scalar field for $m^2/H_0^2<2$, the one-mode occupation number grows more than unity soon after the physical wavelength of the mode crosses the Hubble radius and soon after diverges as $N(t)\sim O(1)[λ_{phys}(t)/{H_0^{-1}}]^{2\sqrt{ν^2-1/4}}$, where $ν\equiv (9/4 -m^2/{H_0^2})^{1/2}$. The results substantiates the previous works in this direction. We also find the correct oscillation and behaviour of $N(z)$ at small $z$ from a single expression using CWKB approximation for various values of $m/H_0$. We also discuss decoherence in relation to the formation of classical condensate. We also find that the squeezed state formalism and CWKB method give identical results.
description: 19 pages, revtex, 5 figures
Astrophysical Dynamics 1999/2000: Merging Research and Education
Creators: name: Romeo, Alessandro B.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Physics Education (physics.ed-ph)
subject: Astrophysics (astro-ph)
subject: Mathematical Physics (math-ph)
subject: Popular Physics (physics.pop-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The workshop `Astrophysical Dynamics 1999/2000' followed a homonymous advanced research course, and both activities were organized by me. In this opening paper of the proceedings book, I describe them and document their strong impact on the academic life of the local institutions. The advanced research course was open to graduate students, senior researchers, and motivated under-graduate students with good background in physics and mathematics. The course covered several multi-disciplinary issues of modern research on astrophysical dynamics, and thus also of interest to physicists, mathematicians and engineers. The major topic was gas dynamics, viewed in context with stellar dynamics and plasma physics. The course was complemented by parallel seminars on hot topics given by experts in such fields, and open to a wide scientific audience. In particular, I gave a friendly introduction to wavelets, which are becoming an increasingly powerful tool not only for processing signals and images but also for analysing fractals and turbulence, and which promise to have important applications to dynamical modelling of disc galaxies. The workshop was open to a wide scientific audience. The workshop with published proceedings book was, as a matter of fact, the innovative form of exam that I proposed for the advanced research course. The contributions were refereed and their quality is high on average, exceptionally high in a few cases. The advanced research course and the workshop all together produced great enthusiasm in the students and welcomed the participation of a hundred different people, which means an order of magnitude more than an average graduate course at Chalmers University of Technology and Göteborg University.
description: opening paper; the proceedings book is in http://www.oso.chalmers.se/~romeo/PROCEEDINGS_BOOK_E
Investing in School Learning: The New York City Department of Education’s Learning Partners Program
Creators: Wallenstein, Jessica
Publisher: name: Columbia University
Year: 2018
Subjects: Education and state
School management and organization
Educational leadership
Organizational behavior

description: It is challenging for central authorities to change the nature of teaching and learning despite great efforts to do so through both command and commitment-style approaches, as well as through recent reforms aimed at teacher quality. Capacity-building initiatives, particularly those that engage educators in structured collaboration within and across schools, hold promise for school improvement. These approaches engage educators to develop contextualized solutions to the specific obstacles facing their students. However, without certain conditions in place, particularly a strong professional community that prioritizes continuous improvement, collaborative activities are unlikely to yield positive outcomes, and instead produce variable results based on schools’ capacity pre-intervention.
      	This dissertation explores New York City’s attempt to build schools’ capacity for improvement through the Learning Partners Program (LPP), a program developed under the Chancellor Fariña administration in 2014. LPP combines interschool collaboration, inquiry, teacher leadership, and teaming, thus providing an opportunity to explore how a district can foster the prerequisite conditions necessary for school improvement. Drawing on qualitative data from 3 years of implementation, I provide a detailed portrait of the elements of the program in practice, and describe the processes and conditions that allowed some schools in the program to implement coordinated changes that moved them towards their improvement goals. These descriptions can provide lessons to other districts interested in taking on similar “learning organization” reforms, or reforms that generally aim to shift the teaching profession towards one that fosters self-examination and continuous improvement.
Drosophila residua Hardy 1965
Creators: name: Rampasso, Augusto Santos
name: O'Grady, Patrick Michael
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Agaricales
Psathyrellaceae
Drosophila
Drosophila residua

description: Drosophila residua Hardy, 1965
Distribution: Endemic: Hawaii
 Additional References: Magnacca et al. (2008); Throckmorton (1966)
description: Published as part of Rampasso, Augusto Santos & O'Grady, Patrick Michael, 2022, Distribution and Taxonomy of Endemic and Introduced Drosophilidae in Hawaii, pp. 1-80 in Zootaxa 5106 (1) on page 44, DOI: 10.11646/zootaxa.5106.1.1, http://zenodo.org/record/6336841
Investing in the Inner City Through Urban Public Schools: Evaluating California’s Equitable Education Finance Policy
Creators: Peña, Madeline
Publisher: name: Columbia University
Year: 2021
Subjects: City planning
Urban schools--Planning
Problem youth
Urban youth--Education
Inner cities

description: High-need students are the fastest growing sector of children in the United States today, and California, who serves one in every eight public school students in the US, serves the vast majority of them. With its sheer size and breadth of diversity, California sits in a unique position to touch the lives of significant portion of disadvantaged youth in the US. Recognizing this role, California is spearheading reforms that aim to create an equitable public education system for all students. In 2013, the state overhauled its school finance system, a categorical method of funding that was used in the state for 40 years. Former Governor, Jerry Brown, adopted the system, called the Local Control Funding Formula (LCFF), which directs increased funds to the most high-need students and restores local control over how money is spent at schools. This mixed-methods study will employ a case study approach to better understand how the implementation of the LCFF and its community engagement process, the Local Control Accountability Plan (LCAP) work in practice. This case study of the Los Angeles Unified School District (LAUSD) will focus on the East Los Angeles neighborhood of Boyle Heights, to illustrate how the additional LCFF funds are dispersed locally to target the needs of high-need groups, how the community is engaged to ensure their immediate needs are met, and what opportunities and challenges to an equitable education system arise following the post implementation of the LCFF.
SymInfer: Inferring Program Invariants using Symbolic States
Creators: name: Nguyen, ThanhVu
name: Dwyer, Matthew B.
name: Visser, Willem
Publisher: name: arXiv
Year: 2019
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: We introduce a new technique for inferring program invariants that uses symbolic states generated by symbolic execution. Symbolic states, which consist of path conditions and constraints on local variables, are a compact description of sets of concrete program states and they can be used for both invariant inference and invariant verification. Our technique uses a counterexample-based algorithm that creates concrete states from symbolic states, infers candidate invariants from concrete states, and then verifies or refutes candidate invariants using symbolic states. The refutation case produces concrete counterexamples that prevent spurious results and allow the technique to obtain more precise invariants. This process stops when the algorithm reaches a stable set of invariants. We present SymInfer, a tool that implements these ideas to automatically generate invariants at arbitrary locations in a Java program. The tool obtains symbolic states from Symbolic PathFinder and uses existing algorithms to infer complex (potentially nonlinear) numerical invariants. Our preliminary results show that SymInfer is effective in using symbolic states to generate precise and useful invariants for proving program safety and analyzing program runtime complexity. We also show that SymInfer outperforms existing invariant generation systems.
Random Neighbor Theory of the Olami-Feder-Christensen Earthquake Model
Creators: name: Broeker, Hans-Martin
name: Grassberger, Peter
Publisher: name: arXiv
Year: 1997
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We derive the exact equations of motion for the random neighbor version of the Olami-Feder-Christensen earthquake model in the infinite-size limit. We solve them numerically, and compare with simulations of the model for large numbers of sites. We find perfect agreement. But we do not find any scaling or phase transitions, except in the conservative limit. This is in contradiction to claims by Lise & Jensen (Phys. Rev. Lett. 76, 2326 (1996)) based on approximate solutions of the same model. It indicates again that scaling in the Olami-Feder-Christensen model is only due to partial synchronization driven by spatial inhomogeneities. Finally, we point out that our method can be used also for other SOC models, and treat in detail the random neighbor version of the Feder-Feder model.
description: 18 pages, 6 ps-figures included; minor correction in sec.5
حمایت از مشمولان توانمند در حوزه تحقیق و توسعه (R&D)
Creators: name: AmirMohammad Abhary
Publisher: name: figshare
Year: 2019
Subjects: Uncategorized

description: رشد و توسعه صنعتی و اقتصادی در هر مجموعه‌ای مدیون و مرهون واحد تحقیق و توسعه است. اگر این واحد بتواند تبش خود را به‌درستی ایفا نماید، بسیاری از مسائل و مشکلات پیش روی سازمان پیش‌بینی شده و پیش از ابتلای به آن‌ها برنامه‌ریزی مناسب جهت به وجود نیامدن آن و یا در صورت وقوع، مقابله با آن و کاهش اثرات آن صورت می‌پذیرد. متأسفانه در بسیاری از صنایع کشور حتی شرکت‌های وابسته به سازمان‌های نظامی، این واحد یا اصلاً وجود ندارد و یا به‌عنوان یک سمت تشریفاتی و اداری بدن کاربرد ایجاد شده است. می‌توان از فرصت سربازی جهت تقویت این واحدها و همچنین تجربه افزایی مشمولان استفاده نمود.
Cissbury ring: a survey by the Roal Commission on the Historical Monuments of England
Creators: name: Donachie, J D
name: Field, D J
Publisher: name: Archaeology Data Service
Year: 2021

description: Sussex Archaeological Collections, 132, 25-32
description: A recent earthwork survey of Cissbury Ring by the Royal Commission on the Historical Monuments of England (RCHME) is the first analytical examination of the site since the pioneering work of Herbert and Christine Toms in 1926. This paper describes the results of the RCHME survey which, building on the work of the Toms, has produced the first detailed plan of the extensive Neolithic flint mining complex set within the context of the hillfort. A number of important points of detail were recorded concerning the morphology and organization of space within the flint mining area and its stratigraphic relationship to the hillfort. New information concerning the earthworks within tile interior of the hillfort has also been recorded.
Variational formulas for submanifolds of fixed degree
Creators: name: Citti, Giovanna
name: Giovannardi, Gianmarco
name: Ritoré, Manuel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Differential Geometry (math.DG)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 49Q05, 53C42, 53C17

description: We consider in this paper an area functional defined on submanifolds of fixed degree immersed into a graded manifold equipped with a Riemannian metric. Since the expression of this area depends on the degree, not all variations are admissible. It turns out that the associated variational vector fields must satisfy a system of partial differential equations of first order on the submanifold. Moreover, given a vector field solution of this system, we provide a sufficient condition that guarantees the possibility of deforming the original submanifold by variations preserving its degree. As in the case of singular curves in sub-Riemannian geometry, there are examples of isolated surfaces that cannot be deformed in any direction. When the deformability condition holds we compute the Euler-Lagrange equations. The resulting mean curvature operator can be of third order.
description: Final version accepted in Calc. Var. Partial Differential Equations
Excavations at Seaford Head Camp, East Sussex, 1983
Creators: name: Bedwin, Owen
Publisher: name: Archaeology Data Service
Year: 2021

description: Sussex Archaeological Collections, 124, 25-33
description: Trial excavations through the defences of Seaford Head hillfort established a likely early Iron Age date for its construction. A section through the rampart revealed post-holes at the front, an indication of wooden revetting. Beneath the rampart was a well-defined buried soil, analysis of which showed clear evidence of tillage immediately prior to the hillfort's construction .
اعطای کسر/جایگزین خدمت به صاحبان واحدهای تولید /خدماتی حامی زنان سرپرست خانوار، مدد جویان بهزیستی و کمیته امداد
Creators: name: AmirMohammad Abhary
Publisher: name: figshare
Year: 2019
Subjects: Uncategorized

description: در سال‌های اخیر ایجاد و مهم‌تر از آن حفظ مشاغل یکی از دغدغه‌های مهم همه اقشار جامعه بوده است. یکی از اقشار آسیب‌پذیر زنان سرپرست خانوار، مدد جویان بهزیستی و کمیته امداد هستند که با توجه به شرایط ویژه خانوادگی و اجتماعی، زندگی‌شان به‌شدت تحت تأثیر منابع مالی اندکی است که به هر نحوی به آن‌ها می‌رسد. می‌توان در راستای حمایت از این اقشار، به صاحبان و گردانندگان واحدهای خدماتی و تولیدی که بخش عمده کارکنان آن را این قشر تشکیل می‌دهند، برنامه‌های جایگزین و کسر خدمت را پیشنهاد نمود تا بتوانند با حفظ کیفیت کار، انگیزه لازم را جهت سپری نمودن خدمت وظیفه عمومی داشته باشند.
Axiomatic Conformal Field Theory
Creators: name: Gaberdiel, Matthias R
name: Goddard, Peter
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A new rigorous approach to conformal field theory is presented. The basic objects are families of complex-valued amplitudes, which define a meromorphic conformal field theory (or chiral algebra) and which lead naturally to the definition of topological vector spaces, between which vertex operators act as continuous operators. In fact, in order to develop the theory, Möbius invariance rather than full conformal invariance is required but it is shown that every Möbius theory can be extended to a conformal theory by the construction of a Virasoro field. In this approach, a representation of a conformal field theory is naturally defined in terms of a family of amplitudes with appropriate analytic properties. It is shown that these amplitudes can also be derived from a suitable collection of states in the meromorphic theory. Zhu's algebra then appears naturally as the algebra of conditions which states defining highest weight representations must satisfy. The relationship of the representations of Zhu's algebra to the classification of highest weight representations is explained.
description: 51 pages, plain TEX
Investing in Stereotypes: Comic Second-Sight in Twentieth-Century African American Literature
Creators: Hunt, Irvin
Publisher: name: Columbia University
Year: 2014
Subjects: Wit and humor
Comedy
Stereotypes (Social psychology) in literature
American literature
African Americans
Theater

description: "Investing in Stereotypes" unearths a tradition of humor that may initially sound counter-intuitive: it sees stereotypes as valuable. Zora Neale Hurston, Ralph Ellison, Charles Wright, and Suzan-Lori Parks reveal the way racial and sexual stereotypes paradoxically complicate their subjects in the very attempt to simplify them. The compulsive repetition of stereotypes and the contradictory meanings that stereotypes embody create absurdly comical effects that are, in the hands of these writers, surprisingly humanizing. To unveil the tensions in, say, Sambo, the happy plantation slave who is at once harmless and savage, completely known and enigmatic, is to invest in the stereotype's comic implication that the subjects it hopes to fix are endlessly changing and exhaustingly complex--that those subjects are, in fact, human. Departing from the most common techniques used to resist stereotypes (inversion, exaggeration, and modification), investment, as I theorize it, is a comic form of engagement that enacts Du Bois's concept of second-sight: the ability to perceive the blind-spots of another's cultural perspective from the vantage point of one's own.
      I begin the dissertation with Hurston because the sort of second-sight her characters practice is the precondition for Ellison's democratic America, Wright's empathic witnessing, and Parks's sovereign communities. Hurston uses tactics of trickery, even more nuanced than Henry Gates's field-framing concept of "Signifyin(g)," to encourage her readers to account for their cultural blind-spots by forcing them to move between the contradictions within a stereotype. For example, when the speaker of "How It Feels to Be Colored Me" vacillates between being "savage" and "cosmic" as she dons the Sambo stereotype, she creates epistemological uncertainty about the cultural knowledge the reader uses to racialize others. By helping people in conflicting positions of power understand their common humanity and their mutually limiting misrecognitions, comic second-sight can work to bridge social divides. "Investing in Stereotypes" shows why the humor of the oppressed deserves more than the scant scholarly attention it has received and also unearths a mode of oppositional consciousness crucial for the emancipationist project of African American literary studies.
اعطای کسر/جایگزین خدمت در قبال ایجاد ارتباط میان سازمان‌های نظامی و مراکز تحقیقاتی و مطالعاتی آن‌ها و سازمان‌های علمی خارج از کشور
Creators: name: AmirMohammad Abhary
Publisher: name: figshare
Year: 2019
Subjects: Uncategorized

description: جهانی‌شدن از ابعاد و مؤلفه‌های گوناگونی برخوردار است. یکی از این مؤلفه‌ها مقوله علم و دانش و پژوهش است. در سال‌های اخیر دانشگاه‌های کشور توجه ویژه‌ای به این مقوله کرده‌اند و تلاش‌های زیادی با هزینه‌های بسیار زیادی صورت پذیرفته است که بتوان ارتباط سامانمند و هدف‌دار را میان مراکز تحقیقاتی و پژوهشی برجسته دنیا با دانشگاه‌ها و پژوهشگاه‌های کشور ایجاد نمود. با توجه به حضور برخی مشمولان در خارج از کشور، ارتباطات حین تحصیل و دوره‌های فرصت مطالعاتی برخی فارغ‌التحصیلان دانشگاهی با اساتید مراکز برجسته خارجی و ... از این فرصت در راستای غنی هر چه پیش‌تر و افزایش کیفیت مراکز علمی نظامی و مراکز مطالعاتی و تحقیقاتی وابسته به آن‌ها استفاده نمود.
An In-situ Annealing effect of Graphene-Graphene Interlayer Conduction
Creators: name: Kulothungan, Jothiramalingam
name: Muruganathan, Manoharan
name: Mizuta, Hiroshi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An interlayer distance modulation in twisted bilayer graphene is reported. This is achieved by an in-situ annealing technique. The transformation of systematic vacuum and hydrogen annealing effects in twisted bilayer CVD graphene on SiO2 surface is reported based on experimental results. Incoherent interlayer conduction is observed in the twisted bilayer device. In-situ annealing efficiently removes the residues in the graphene-to-graphene interface and enhances the interlayer conduction. We demonstrate graphene-to-graphene interlayer resistance modulated by an order of magnetite at 5 K. We also report on the behavior of molecular hydrogen on graphene interlayer using the gate voltage-dependent resistance as a function of temperature at atmospheric pressure. It was observed that interlayer conduction in hydrogen/argon gas ambient is reduced. Results imply that modulation in the interlayer distance of graphene-to-graphene junction, as determined by the transport measurement investigation. Overall this result leads to the possibility of making electrically tunable devices using twisted bilayer graphene.
description: 21 Pages, 6 Figures
Nonunitary Classically Stable HD Gravity
Creators: name: De Filippo, Sergio
name: Maimone, Filippo
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Classical instability in fourth order gravity is cured at the expense of unitarity. The appearance of hidden degrees of freedom replicating those of ordinary matter allows for ordinary thermodynamic entropy and black hole entropy to be identified with von Neumann entropy. The emergent picture gives a substantial agreement with B-H entropy and Hawking temperature.
description: 6 pages, to appear in Proceedings of the First International Conference on Quantum Limits to the Second Law, July 29-31, 2002, University of San Diego, San Diego, CA
Additional file 1 of The long noncoding RNA MEG3 regulates Ras-MAPK pathway through RASA1 in trophoblast and is associated with unexplained recurrent spontaneous abortion
Creators: name: Zhang, Jun
name: Liu, Xinqiong
name: Gao, Yali
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Oligonucleotide sequence.
Additional file 2 of The long noncoding RNA MEG3 regulates Ras-MAPK pathway through RASA1 in trophoblast and is associated with unexplained recurrent spontaneous abortion
Creators: name: Zhang, Jun
name: Liu, Xinqiong
name: Gao, Yali
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Table S2. PCR primers.
Development of a coronal mass ejection arrival time forecasting system using interplanetary scintillation observations
Creators: name: Iwai, Kazumasa
name: Shiota, Daikou
name: Tokumaru, Munetoshi
name: Fujiki, Kenichi
name: Den, Mitsue
name: Kubo, Yûki
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal mass ejections (CMEs) cause disturbances in the environment of the Earth when they arrive at the Earth. However, the prediction of the arrival of CMEs still remains a challenge. We have developed an interplanetary scintillation (IPS) estimation system based on a global magnetohydrodynamic (MHD) simulation of the inner heliosphere to predict the arrival time of CMEs. In this system, the initial speed of a CME is roughly derived from white light coronagraph observations. Then, the propagation of the CME is calculated by a global MHD simulation. The IPS response is estimated by the three-dimensional density distribution of the inner heliosphere derived from the MHD simulation. The simulated IPS response is compared with the actual IPS observations made by the Institute for Space-Earth Environmental Research, Nagoya University, and shows good agreement with that observed. We demonstrated how the simulation system works using a halo CME event generated by a X9.3 flare observed on September 5, 2017. We find that the CME simulation that best estimates the IPS observation can more accurately predict the time of arrival of the CME at the Earth. These results suggest that the accuracy of the CME arrival time can be improved if our current MHD simulations include IPS data.
description: 39 pages, 6 figures, accepted for publication in Earth, Planets and Space
Drosophila nanella Hardy 1965
Creators: name: Rampasso, Augusto Santos
name: O'Grady, Patrick Michael
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Agaricales
Psathyrellaceae
Drosophila
Drosophila nanella

description: Drosophila nanella Hardy, 1965
Distribution: Endemic: Kauai
 Additional References: Magnacca et al. (2008); Magnacca & O’Grady (2009); O’Grady et al. (2011); Throckmorton (1966)
description: Published as part of Rampasso, Augusto Santos & O'Grady, Patrick Michael, 2022, Distribution and Taxonomy of Endemic and Introduced Drosophilidae in Hawaii, pp. 1-80 in Zootaxa 5106 (1) on page 44, DOI: 10.11646/zootaxa.5106.1.1, http://zenodo.org/record/6336841
Identifying conversion efficiency as a key mechanism underlying food webs evolution : a step forward, or backward ?
Creators: name: Fritsch, Coralie
name: Billiard, Sylvain
name: Champagnat, Nicolas
Publisher: name: arXiv
Year: 2019
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Dynamical Systems (math.DS)
subject: FOS: Biological sciences
subject: FOS: Mathematics

description: Body size or mass is one of the main factors underlying food webs structure. A large number of evolutionary models have shown that indeed, the adaptive evolution of body size (or mass) can give rise to hierarchically organised trophic levels with complex between and within trophic interactions. However, these models generally make strong arbitrary assumptions on how traits evolve, casting doubts on their robustness. In particular, biomass conversion efficiency is always considered independent of the predator and prey size, which contradicts with the literature. In this paper, we propose a general model encompassing most previous models which allows to show that relaxing arbitrary assumptions gives rise to unrealistic food webs. We then show that considering biomass conversion efficiency dependent on species size is certainly key for food webs adaptive evolution because realistic food webs can evolve, making obsolete the need of arbitrary constraints on traits' evolution. We finally conclude that, on the one hand, ecologists should pay attention to how biomass flows into food webs in models. On the other hand, we question more generally the robustness of evolutionary models for the study of food webs.
Stochastic calculus: application to dynamic bifurcations and threshold crossings
Creators: name: Jansons, Kalvis M.
name: Lythe, G. D.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: For the dynamic pitchfork bifurcation in the presence of white noise, the statistics of the last time at zero are calculated as a function of the noise level and the rate of change of the parameter. The threshold crossing problem used, for example, to model the firing of a single cortical neuron is considered, concentrating on quantities that may be experimentally measurable but have so far received little attention. Expressions for the statistics of pre-threshold excursions, occupation density and last crossing time of zero are compared with results from numerical generation of paths.
description: LaTeX, 34 pages, 7 postscript figures included
title: Internationale politische Ökonomie (IPÖ): Foliensatz zur Vorlesung im WS 2006/07
Creators: name: Menzel, Ulrich
Publisher: name: Institut für Sozialwissenschaften (ISW)
Year: 2007
Subjects: subject: 327

description: Forschungsberichte aus dem Institut für Sozialwissenschaften (ISW), vol. 75
Clebsch (String) Parameterization of 3-Vectors and Their Actions
Creators: name: Deser, S.
name: Jackiw, R.
name: Polychronakos, A. P.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We discuss some properties of the intrinsically nonlinear Clebsch decomposition of a vector field into three scalars in d=3. In particular, we note and account for the incompleteness of this parameterization when attempting to use it in variational principles involving Maxwell and Chern-Simons actions. Similarities with string decomposition of metrics and their actions are also pointed out.
description: 4 pages, LaTeX; email correspondence to jackiw@mitlns.mit.edu
اختصاص فرصت کسر / جایگزین خدمت در قبال خدمات ترجمه، محتوی و خدمات رسانه و تبلیغات محصولات دانش‌بنیان
Creators: name: AmirMohammad Abhary
Publisher: name: figshare
Year: 2019
Subjects: Uncategorized

description: در دنیای امروز که تبلیغات حرف اول را میزند، لازم است تا علاوه بر تمرکز بر تولید و اشاعه محصولات دانش نبیان، به تبلیغ و تبیین درست این محصولات نیز در سطوح مختلف پرداخته شود. یکی از با اهمیت‌ترین بازارها از حیث اقتصادی و همچنین سیاسی بازارهای خارج از کشور هستند که حضور محصولات دانش‌بنیان جمهوری اسلامی ایران در آن‌ها می‌تواند علاوه بر نمایش جنبه اقتدار علمی جمهوری اسلامی ایران و توسعه اقتصادی پایدار، از منظر صدور انقلاب نیز مورد توجه و بررسی قرار گیرد. مشمولان و سربازان بسیاری هستند که از توانمندی‌های رسانه‌ای، خبری، ترجمه‌ای و تولید محتوی در حوزه تبلیغ محصولات به‌واسطه علاقه شخصی، سابقه کار قبلی و یا تحصیلات دانشگاهی برخوردار هستند که بی‌شک استفاده از آن‌ها در زمینه محصولات دانش نبیان می‌تواند گام مؤثری در حوزه برون‌رفت از معضلات اقتصادی را به دنبال داشته باشید.
اعطای کسری خدمت به ازای سرمایه‌گذاری در حساب قرض‌الحسنه ویژه اشتغال‌زایی سربازان و تازه اتمام خدمت شدگان
Creators: name: AmirMohammad Abhary
Publisher: name: figshare
Year: 2019
Subjects: Uncategorized

description: توسعه اشتغال همواره نیازمند دو منبع عمده انسانی و مالی است. خوشبختانه دوران خدمت وظیفه عمومی این امکان را به نیروهای مسلح می‌دهد که بتوانند از منبع سرشار نیروی انسانی برخوردار شوند؛ اما در رابطه با منابع مالی علی‌رغم ثروت بسیار کشور به دلیل عدم توازن توزیع، سهم سربازان به‌قدری کم است که حتی به بودجه مصوب قانونی آنان نیز نمی‌رسد، بنابراین باید به فکر تأمین منابع بود. یکی از این راه‌ها بهره جستن از فرصت سرمایه‌گذاری افراد در حساب‌هایی معین به همین منظور است.
Invisible Intersections of Gender-Based Violence among High-Risk, Vulnerable Women in the U.S. and Kazakhstan
Creators: Jiwatram-Negron, Tina
Publisher: name: Columbia University
Year: 2016
Subjects: Sex crimes
HIV-positive persons
HIV-positive persons--Sexual behavior
Gender studies
Violence
Social service

description: The purpose of this three-paper dissertation is to address existing gaps in the literature by examining the intersections of gender-based violence (intimate and non-intimate partner) (GBV) among key-affected populations, defined as women engaged in sex trading in intimate relationships, HIV-positive women, and/or low-income, substance-involved women. This dissertation includes three papers that examine: 1) IPV and recent sex trading among a sample of substance-involved women in intimate sexual relationships in New York City; 2) the prevalence and correlates of GBV among a sample of HIV-positive women in Kazakhstan; and 3) the synergistic effects of IPV, HIV, and substance use on mental health (depression and suicidality) among a sample of high-risk women in relationships in Kazakhstan. This dissertation is guided by the ecological systems framework, intersectionality, and syndemic theory. Key findings from the dissertation highlight the pervasive nature of GBV among vulnerable women who engage in high-risk behaviors and/or live in high-risk settings. Specifically, key findings from papers one and two show higher than average prevalence of GBV among women who engage in sex trading as well as HIV-positive women. Findings from this dissertation also suggest that women who report depression, individual and partner sexual and drug risk-behaviors, and HIV-related stigma are more likely to report GBV than those who do not; and that women who have higher levels of social support and food security are less likely to report GBV and poor mental health. Findings also have several implications for GBV and HIV prevention/intervention efforts within the U.S. and in Kazakhstan, including scaling up efforts to address GBV by multiple perpetrators, stigma, trauma and mental health, drug and sexual risk among couples, and food stability.
اعطای معافیت مالیاتی به واحدهای سرمایه‌گذار در زمینه مهارت‌آموزی و تأمین مایحتاج تولید مشاغل سربازان
Creators: name: AmirMohammad Abhary
Publisher: name: figshare
Year: 2019
Subjects: Uncategorized

description: یکی از راه‌های تشویق افراد حقیقی به توسعه رفاه و عدالت اجتماعی در سطح ملی، مشوق‌های معافیت مالیاتی است. بدین نحو که با سرمایه‌گذاری ر واحدهای مختلف عام‌المنفعه می‌توان هزینه‌ها را به‌عنوان مالیات پرداخت شده تلقی نمود. می‌توان با ارائه قانونی، سرمایه‌های این حوزه را در جهت اشتغال‌زایی و راه‌اندازی و تجهیز واحدهای اداره شونده توسط سربازان هدایت نمود.
Invisible Mathematics in Italo Calvino's Le città invisibili
Creators: Moreno-Viqueira, Ileana
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Literature
subject: Mathematics
subject: FOS: Mathematics

description: This dissertation examines the use of mathematical concepts as an essential structural and thematic element in Italo Calvino's Le città invisibili. The author`s conception of literature as a combinatorial art, intrinsically mathematical itself, is the point of departure. Focal to the study is Calvino's interest in that which is an essential part of the combinatorial game and the key to Gödel Incompleteness Theory, namely, the elements of surprise and the unexpected - the exceptions to the rule. Other critical approaches to Calvino's work, like semiotic, structuralism and scientific are interrelated to Mathematics, but what this study proposes is a strictly mathematical approach to complement that which has already been pointed out. A mathematical perspective based on an understanding of Mathematics as more than just numbers encompasses the whole analysis. Mathematics is given its proper place as a humanistic discipline. It is an interdisciplinary proposal of literature and science, pertinent to Calvino's writing. The purpose is to unveil a "hidden math" which from the perspective of this study is an intrinsic tool in Calvino's writing process of Città. As a versatile writer, Calvino manages to use mathematics in such subtle ways that it may not be perceptible at first sight. Most importantly, within these mathematical concepts and images lies, in part, the potential character of literature for which the author aims: that latent yet invisible possibility, that search for new forms (like the cities). These ideas, particularly related to potential literature, are also analyzed from his interest and involvement in Oulipo (Ouvroir de Littérature Potentielle). The study begins by unfolding what aspects of combinatorial mathematics are present in Le città invisibili; how these concepts as well as other images are used in the construction and design of the cities and the book; and to find out why Calvino finds recourse to mathematics as a narrative and creative strategy. Calvino's use of mathematical concepts are studied as a "visual instrument" in the organization and construction of his imaginative writing and, furthermore, as a means to achieve "lightness" structurally and thematically through the abstract, aesthetic and, at times, even humorous nature of mathematics. In their own way mathematics and literature attempt to make visible what is invisible, and they both struggle to remove weight from their own "systems" of expression. In conclusion, the investigation intends to demonstrate through Calvino's Le città invisibili, how mathematics and literature complement each other in the search for new forms, new ideas, new stories.
Dimensionality and Anisotropicity Dependence of Radiative Recombination in Nanostructured Phosphorene
Creators: name: Wu, Feng
name: Rocca, Dario
name: Ping, Yuan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The interplay between dimensionality and anisotropicity leads to intriguing optoelectronic properties and exciton dynamics in low dimensional semiconductors. In this study we use nanostructured phosphorene as a prototypical example to unfold such complex physics and develop a general first-principles framework to study exciton dynamics in low dimensional systems. Specifically we derived the radiative lifetime and light emission intensity from 2D to 0D systems based on many-body perturbation theory, and investigated the dimensionality and anisotropicity effects on radiative recombination lifetime both at 0 K and finite temperature, as well as polarization and angle dependence of emitted light. We show that the radiative lifetime at 0 K increases by an order of $10^3$ with the lowering of one dimension (i.e. from 2D to 1D nanoribbons or from 1D to 0D quantum dots). We also show that obtaining the radiative lifetime at finite temperature requires accurate exciton dispersion beyond the effective mass approximation. Finally, we demonstrate that monolayer phosphorene and its nanostructures always emit linearly polarized light consistent with experimental observations, different from in-plane isotropic 2D materials like MoS2 and h-BN that can emit light with arbitrary polarization, which may have important implications for quantum information applications.
Invisible Terrains: Experiences of Nomadic Music Teaching Artists
Creators: Kresek, Katharine Charlotte
Publisher: name: Columbia University
Year: 2018
Subjects: Music--Instruction and study
Music
Music teachers
Nomads
Musicians

description: This study explores the complexities of professional performing freelance musicians who teach part-time through arts organizations in multiple educative settings, a condition I refer to as nomadic. Nomadicism is characterized by an inherent sense of itinerancy. Through semi-structured interviews and observations with three participants, I constructed narratives of individual experience through a method of narrative inquiry, which enabled much-needed nuance and complexity, as prior research in the field of teaching artistry has focused mainly on surveys of working conditions with mostly informal anecdotes from the field. The music teaching artists in this study negotiated highly complex careers to extraordinary degrees in which they experienced conflicts between their preparation as highly accomplished performers and their preparation for their work as teachers. While each participant expressed their motivations for pursuing careers as teaching artists in radically different ways, they shared similar patterns of integration and reciprocity between their performing and teaching identities. Participants communicated unique, varied, and idiosyncratic narratives of perceived successes and challenges in preparing, adapting, and negotiating their multiple roles across multiple spaces. While their work had them interacting with students, teachers, administration, family, and musical colleagues, the teaching artists still experienced significant feelings of isolation. Ultimately, each participant articulated the need for openings of dialogical spaces for teaching artists to commune and grow with one another. This study brings a critical perspective to the conditions of music teaching artists and how they and those that prepare and work with them might bring criticality and responsiveness to their unique place within the wider world of arts education.
Free Globularly Generated Double Categories II: The Canonical Double Projection
Creators: name: Orendain, Juan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: This is the second installment of a two part series of papers studying free globularly generated double categories. We introduce the canonical double projection construction. The canonical double projection translates information from free globularly generated double categories to double categories defined through the same set of globular and vertical data. We use the canonical double projection to define compatible formal linear functorial extensions of the Haagerup standard form and the Connes fusion operation to possibly-infinite index morphisms between factors. We use the canonical double projection to prove that the free globularly generated double category construction is left adjoint to decorated horizontalization. We thus interpret free globularly generated double categories as formal decorated analogs of double categories of quintets and as generators for internalizations.
description: 60 pages, published version
Drosophila eurypeza Hardy 1965
Creators: name: Rampasso, Augusto Santos
name: O'Grady, Patrick Michael
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Agaricales
Psathyrellaceae
Drosophila
Drosophila eurypeza

description: Drosophila eurypeza Hardy, 1965
Distribution: Endemic: Kauai
 Additional References: Craddock et al. (2018); Magnacca & O’Grady (2009); O’Grady et al. (2011); Throckmorton (1966)
description: Published as part of Rampasso, Augusto Santos & O'Grady, Patrick Michael, 2022, Distribution and Taxonomy of Endemic and Introduced Drosophilidae in Hawaii, pp. 1-80 in Zootaxa 5106 (1) on page 46, DOI: 10.11646/zootaxa.5106.1.1, http://zenodo.org/record/6336841
Hamiltonian thermodynamics of the Reissner-Nordström-anti-de Sitter black hole
Creators: name: Louko, Jorma
name: Winters-Hilt, Stephen N.
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the Hamiltonian dynamics and thermodynamics of spherically symmetric Einstein-Maxwell spacetimes with a negative cosmological constant. We impose boundary conditions that enforce every classical solution to be an exterior region of a Reissner-Nordström-anti-de Sitter black hole with a nondegenerate Killing horizon, with the spacelike hypersurfaces extending from the horizon bifurcation two-sphere to the asymptotically anti-de Sitter infinity. The constraints are simplified by a canonical transformation, which generalizes that given by Kuchař in the spherically symmetric vacuum Einstein theory, and the theory is reduced to its true dynamical degrees of freedom. After quantization, the grand partition function of a thermodynamical grand canonical ensemble is obtained by analytically continuing the Lorentzian time evolution operator to imaginary time and taking the trace. A~similar analysis under slightly modified boundary conditions leads to the partition function of a thermodynamical canonical ensemble. The thermodynamics in each ensemble is analyzed, and the conditions that the (grand) partition function be dominated by a classical Euclidean black hole solution are found. When these conditions are satisfied, we recover in particular the Bekenstein-Hawking entropy. The limit of a vanishing cosmological constant is briefly discussed. (This paper is dedicated to Karel Kuchař on the occasion of his sixtieth birthday.)
description: 34 pages, REVTeX v3.0. (Minor corrections and presentational revisions; added references.)