cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Investigations of Evaporative Cooling and Turbulence Flame Interaction Modeling in Ethanol Turbulent Spray Combustion Using Tabulated Chemistry
Creators: name: Sacomano Filho, Fernando Luiz
name: Dressler, Louis
name: Hosseinzadeh, Arash
name: Sadiki, Amsini
name: Krieger Filho, Guenther Carlos
Publisher: name: MDPI
Year: 2023

description: Evaporative cooling effects and turbulence flame interaction are analyzed in the large eddy simulation (LES) context for an ethanol turbulent spray flame. Investigations are conducted with the artificially thickened flame (ATF) approach coupled with an extension of the mixture adaptive thickening procedure to account for variations of enthalpy. Droplets are tracked in a Euler–Lagrangian framework, in which an evaporation model accounting for the inter-phase non-equilibrium is applied. The chemistry is tabulated following the flamelet generated manifold (FGM) method. Enthalpy variations are incorporated in the resulting FGM database in a universal fashion, which is not limited to the heat losses caused by evaporative cooling effects. The relevance of the evaporative cooling is evaluated with a typically applied setting for a flame surface wrinkling model. Using one of the resulting cases from the evaporative cooling analysis as a reference, the importance of the flame wrinkling modeling is studied. Besides its novelty, the completeness of the proposed modeling strategy allows a significant contribution to the understanding of the most relevant phenomena for the turbulent spray combustion modeling.
Noise, Synchrony and Correlations at the Edge of Chaos
Creators: name: Pluchino, Alessandro
name: Rapisarda, Andrea
name: Tsallis, Constantino
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the effect of a weak random additive noise in a linear chain of N locally-coupled logistic maps at the edge of chaos. Maps tend to synchronize for a strong enough coupling, but if a weak noise is added, very intermittent fluctuations in the returns time series are observed. This intermittency tends to disappear when noise is increased. Considering the pdfs of the returns, we observe the emergence of fat tails which can be satisfactorily reproduced by $q$-Gaussians curves typical of nonextensive statistical mechanics. Interoccurrence times of these extreme events are also studied in detail. Similarities with recent analysis of financial data are also discussed.
description: 6 pages, 8 figures, new figure added - Version accepted for publication in Physical Review E
Quantum simplicial geometry in the group field theory formalism: reconsidering the Barrett-Crane model
Creators: name: Baratin, Aristide
name: Oriti, Daniele
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A dual formulation of group field theories, obtained by a Fourier transform mapping functions on a group to functions on its Lie algebra, has been proposed recently. In the case of the Ooguri model for SO(4) BF theory, the variables of the dual field variables are thus so(4) bivectors, which have a direct interpretation as the discrete B variables. Here we study a modification of the model by means of a constraint operator implementing the simplicity of the bivectors, in such a way that projected fields describe metric tetrahedra. This involves a extension of the usual GFT framework, where boundary operators are labelled by projected spin network states. By construction, the Feynman amplitudes are simplicial path integrals for constrained BF theory. We show that the spin foam formulation of these amplitudes corresponds to a variant of the Barrett-Crane model for quantum gravity. We then re-examin the arguments against the Barrett-Crane model(s), in light of our construction.
description: revtex, 24 pages
LINGUISTICS AND ITS CONNECTION BETWEEN OTHER DISCIPLINES. PECULIARITIES OF THE RELATIONSHIP BETWEEN LINGUISTICS AND LITERARY STUDIES
Creators: name: Amanbayeva, Oydin
name: Raximova, Nodira
Publisher: name: Zenodo
Year: 2023

description: This article informs readers about linguistics and its correlation with other scientific subjects. It delves into the intricate interplay between linguistics and literary studies, unravelling the multifaceted connections that exist between these two disciplines. Linguistics, as the scientific study of language, serves as a foundational framework for understanding the structure, evolution, and cultural nuances inherent in human communication. This paper explores the symbiotic relationship between linguistics and literary studies, shedding light on the unique dynamics that emerge when these fields intersect.
Selecting and estimating regular vine copulae and application to financial returns
Creators: name: Dissmann, Jeffrey
name: Brechmann, Eike Christian
name: Czado, Claudia
name: Kurowicka, Dorota
Publisher: name: arXiv
Year: 2012
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Regular vine distributions which constitute a flexible class of multivariate dependence models are discussed. Since multivariate copulae constructed through pair-copula decompositions were introduced to the statistical community, interest in these models has been growing steadily and they are finding successful applications in various fields. Research so far has however been concentrating on so-called canonical and D-vine copulae, which are more restrictive cases of regular vine copulae. It is shown how to evaluate the density of arbitrary regular vine specifications. This opens the vine copula methodology to the flexible modeling of complex dependencies even in larger dimensions. In this regard, a new automated model selection and estimation technique based on graph theoretical considerations is presented. This comprehensive search strategy is evaluated in a large simulation study and applied to a 16-dimensional financial data set of international equity, fixed income and commodity indices which were observed over the last decade, in particular during the recent financial crisis. The analysis provides economically well interpretable results and interesting insights into the dependence structure among these indices.
Base Politics
Creators: name: Cooley, Alexander A.
Publisher: name: Columbia University
Year: 2005
Subjects: Armed Forces

description: As the Pentagon prepares to redeploy U.S. forces around the world, it should review its practice of setting up bases in nondemocratic states. Although defense officials claim that having U.S. footholds in repressive countries offers important strategic advantages, the practice rarely helps promote liberalization in host states and sometimes even endangers U.S. security.
Less is More in New York: An Examination of the Impact of State Parole Violations on Prison and Jail Populations
Creators: name: Schiraldi, Vincent N.
name: Arzu, Jennifer L.
Publisher: name: Columbia University
Year: 2018
Subjects: Community-based corrections
Parole
Parole--U.S. states
Criminal justice, Administration of

description: As the number of people in New York’s state prisons and local jails, including Rikers Island, has been declining, one population is on the rise – persons incarcerated for state parole violations. This, even as city and state leaders agree that the Rikers Island should close and that more attention should be paid to the parole violation issue. This research brief examines this issue in greater detail, focusing on its impact on New York City’s jail population at this critical time. It concludes with recommendations to reduce unnecessary incarceration of persons on parole as well as to shrink the overall parole population and focus parole supervision and supports on those who need it the most.
Geometry in the entanglement dynamics of the double Jaynes-Cummings model
Creators: name: Vieira, A. R.
name: Junior, J. G. G. de Oliveira
name: de Faria, J. G. Peixoto
name: Nemes, M. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on the geometric character of the entanglement dynamics of to pairs of qubits evolving according to the double Jaynes-Cummings model. We show that the entanglement dynamics for the initial states |ψ_0> = Cosα |1 0> + Sinα |0 1> and |ϕ_0> = Cosα |1 1> + Sinα |0 0> cover 3-dimensional surfaces in the diagram C_ij\timesC_ik\timesC_il, where C_mn stands for the concurrence between the qubits m and n, varying 0\leqα\leqπ/2. In the first case projections of the surfaces on a diagram C_ij\timesC_kl are conics. In the second case the curves can be more complex. We relate those conics with a measurable quantity, the {\it predictability}.We also derive inequalities limiting the sum of the squares of the concurrence of every bipartition and show that sudden death of entanglement is intimately connected to the size of the radius of a hyper-sphere.
description: 11 pages, 21 figures. Brazilian Journal of Physics (2014)
An exploration of a haptic affect loop through use cases
Creators: name: Pan, Matthew Keith Xi-Jie
Publisher: name: University of British Columbia
Year: 2012

description: This work investigates a novel interaction paradigm of implicit, low-attention user control, accomplished by monitoring a user’s physiological state. Additionally, we provide feedback to the user regarding system changes in response to this implicit control through touch. We explored the implicit interaction concept, termed the ‘Haptic-Affect Loop’ (HALO), in the context of two use cases. In the first, we developed a HALO interaction to bookmark then resume listening to an audio stream when interrupted. A user’s galvanic skin response is monitored for orienting responses (ORs) to external interruptions; our prototype automatically bookmarks the media, allowing the user to resume listening from the point he/she is interrupted. In a controlled environment, we found an OR detection accuracy of 84%. We further investigated the usefulness of two forms of haptic feedback for bookmarking: notification of bookmark placement and display of bookmarks during navigation. Results show that haptic notification is able to provide a significant performance benefit in terms of navigation speed when paired with visual-spatial indications of where bookmarks have been placed over conditions with no notification; also, performance was no worse with the haptic display of bookmarks than the visual display. Participants tended to prefer haptic notification at interruption time, and both haptic and visual display of bookmarks at resumption. We used a second use case, music-listening, as a framework for another HALO implementation to estimate user preference for music. In a pilot experiment, we collected physiological and music rating data while participants listened to music. Combining this with structural feature data extracted from the music, we obtained state-space models which were used by a Kalman filter to estimate user rating of music selections. Results currently show poor performance in terms of ability to estimate rating of music both known and unknown to users possibly due to a false assumption of system linearity. The outcome of this effort was a first pass implementation of HALO which provided insight into its strengths and weaknesses. This work enables further exploration in how HALO can benefit interactions in other contexts by providing validation of the technological feasibility, utility and behavior of the Haptic-Affect Loop.
title: Accelerated Warming and Emergent Trends in Fisheries Biomass Yields of the World s Large Marine Ecosystems
Creators: name: Sherman, K.
name: Belkin, I.
name: Friedland, K. D.
name: O’Reilly, J.
name: Hyde, K.
Publisher: name: ASC 2009 - Theme session E
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.Information on the effects of global climate change on trends in global fisheries biomass yields has been limited in spatial and temporal scale. Results are presented of a global study of the impact of sea surface temperature changes over the last 25 years on the fisheries yields of 63 large marine ecosystems (LMEs) that annually produce 80% of the world’s marine fisheries catches. Warming trends were observed in 61 LMEs around the globe.
The Bergman-Shelah Preorder on Transformation Semigroups
Creators: name: Mesyan, Z.
name: Mitchell, J. D.
name: Morayne, M.
name: Peresse, Y.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic (math.LO)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 20M20, 08A35

description: Let $\nat^\nat$ be the semigroup of all mappings on the natural numbers $\nat$, and let $U$ and $V$ be subsets of $\nat^\nat$. We write $U\preccurlyeq V$ if there exists a countable subset $C$ of $\nat^\nat$ such that $U$ is contained in the subsemigroup generated by $V$ and $C$. We give several results about the structure of the preorder $\preccurlyeq$. In particular, we show that a certain statement about this preorder is equivalent to the Continuum Hypothesis. The preorder $\preccurlyeq$ is analogous to one introduced by Bergman and Shelah on subgroups of the symmetric group on $\nat$. The results in this paper suggest that the preorder on subsemigroups of $\nat^\nat$ is much more complicated than that on subgroups of the symmetric group.
How much charm can PANDA produce?
Creators: name: Khodjamirian, A.
name: Klein, Ch.
name: Mannel, Th.
name: Wang, Y. -M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We consider the production of charmed baryons and mesons in the proton-antiproton binary reactions at the energies of the future $\bar{P}$ANDA experiment. To describe these processes in terms of hadronic interaction models, one needs strong couplings of the initial nucleons with the intermediate and final charmed hadrons. Similar couplings enter the models of binary reactions with strange hadrons. For both charmed and strange hadrons we employ the strong couplings and their ratios calculated from QCD light-cone sum rules. In this method finite masses of $c$ and $s$ quarks are taken into account. Employing the Kaidalov's quark-gluon string model with Regge poles and adjusting the normalization of the amplitudes in this model to the calculated strong couplings, we estimate the production cross section of charmed hadrons. For $p\bar{p}\to Λ_c\barΛ_c$ it can reach several tens of $nb$ at $p_{lab}= 15 {GeV}$, whereas the cross sections of $Σ_c$ and $D$ pair production are predicted to be smaller.
description: 22 pages, 6 figures, matches published version
Creatinine- versus cystatin C-based renal function assessment in the Northern Manhattan Study
Creators: name: Husain, Syed Ali
name: Willey, Joshua Zebadiah
name: Moon, Yeseon P.
name: Elkind, Mitchell S.
name: Sacco, Ralph L.
name: Wolf, Myles
name: Cheung, Ken
name: Wright, Clinton B.
name: Mohan, Sumit
Publisher: name: Columbia University
Year: 2018
Subjects: Kidneys--Diseases
Glomerular filtration rate
Epidemiology
Creatinine
Cystatins

description: Background Accurate glomerular filtration rate estimation informs drug dosing and risk stratification. Body composition heterogeneity influences creatinine production and the precision of creatinine-based estimated glomerular filtration rate (eGFRcr) in the elderly. We compared chronic kidney disease (CKD) categorization using eGFRcr and cystatin C-based estimated GFR (eGFRcys) in an elderly, racially/ethnically diverse cohort to determine their concordance. Methods The Northern Manhattan Study (NOMAS) is a predominantly elderly, multi-ethnic cohort with a primary aim to study cardiovascular disease epidemiology. We included participants with concurrently measured creatinine and cystatin C. eGFRcr was calculated using the CKD-EPI 2009 equation. eGFRcys was calculated using the CKD-EPI 2012 equation. Logistic regression was used to estimate odds ratios and 95% confidence intervals of factors associated with reclassification from eGFRcr≥60ml/min/1.73m2 to eGFRcys<60ml/min/1.73m2. Results Participants (n = 2988, mean age 69±10yrs) were predominantly Hispanic, female, and overweight/obese. eGFRcys was lower than eGFRcr by mean 23mL/min/1.73m2. 51% of participants’ CKD status was discordant, and only 28% maintained the same CKD stage by both measures. Most participants (78%) had eGFRcr≥60mL/min/1.73m2; among these, 64% had eGFRcys<60mL/min/1.73m2. Among participants with eGFRcr≥60mL/min/1.73m2, eGFRcys-based reclassification was more likely in those with age >65 years, obesity, current smoking, white race, and female sex. Conclusions In a large, multiethnic, elderly cohort, we found a highly discrepant prevalence of CKD with eGFRcys versus eGFRcr. Determining the optimal method to estimate GFR in elderly populations needs urgent further study to improve risk stratification and drug dosing.
Wigner crystal induced by dipole-dipole interaction in one-dimensional optical lattices
Creators: name: Xu, Zhihao
name: Chen, Shu
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate that the static structure factor, momentum distribution and density distribution provide clear signatures of the emergence of Wigner crystal for the fermionic dipolar gas with strongly repulsive dipole-dipole interactions trapped in one-dimensional optical lattices. Our numerical evidences are based on the exact diagonalization of the microscopic effective lattice Hamiltonian of few particles interacting with long-range interactions. As a comparison, we also study the system with only nearest-neighbor interactions, which displays quite different behaviors from the dipolar system in the regime of strong repulsion.
description: 5 pages, 5 figures
Pollution from Fossil-Fuel Combustion is the Leading Environmental Threat to Global Pediatric Health and Equity: Solutions Exist
Creators: name: Perera, Frederica P.
Publisher: name: Columbia University
Year: 2018
Subjects: Air--Pollution--Health aspects
Fossil fuels--Combustion--Environmental aspects
Children--Health and hygiene
Child development
Environmental justice

description: Fossil-fuel combustion by-products are the world’s most significant threat to children’s health and future and are major contributors to global inequality and environmental injustice. The emissions include a myriad of toxic air pollutants and carbon dioxide (CO2), which is the most important human-produced climate-altering greenhouse gas. Synergies between air pollution and climate change can magnify the harm to children. Impacts include impairment of cognitive and behavioral development, respiratory illness, and other chronic diseases—all of which may be “seeded“ in utero and affect health and functioning immediately and over the life course. By impairing children’s health, ability to learn, and potential to contribute to society, pollution and climate change cause children to become less resilient and the communities they live in to become less equitable. The developing fetus and young child are disproportionately affected by these exposures because of their immature defense mechanisms and rapid development, especially those in low- and middle-income countries where poverty and lack of resources compound the effects. No country is spared, however: even high-income countries, especially low-income communities and communities of color within them, are experiencing impacts of fossil fuel-related pollution, climate change and resultant widening inequality and environmental injustice. Global pediatric health is at a tipping point, with catastrophic consequences in the absence of bold action. Fortunately, technologies and interventions are at hand to reduce and prevent pollution and climate change, with large economic benefits documented or predicted. All cultures and communities share a concern for the health and well-being of present and future children: this shared value provides a politically powerful lever for action. The purpose of this commentary is to briefly review the data on the health impacts of fossil-fuel pollution, highlighting the neurodevelopmental impacts, and to briefly describe available means to achieve a low-carbon economy, and some examples of interventions that have benefited health and the economy.
The Economic Impacts of Drought on Navajo Nation
Creators: name: Drugova, Tatiana
name: Curtis, Kynda
name: Kim, Man-Keun
name: Drugova, Tatiana
name: Curtis, Kynda
name: Kim, Man-Keun
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Livestock Production/Industries
subject: drought
subject: Navajo Nation
subject: economic impacts
subject: cattle
subject: hay
subject: PDSI

description: Drought negatively impacts productivity in the agricultural sectors. Drought is particularly concerning in the arid Southwest, where agriculture plays an important role in the economies and traditions of Native American peoples. The objective of this study is to evaluate the impacts of drought on primary agricultural sectors for Navajo Nation, specifically cattle and hay production, applying panel data analysis, as well as the resulting total economic impacts applying supply-driven input-output analysis. Study results show that drought has a larger impact on cattle production than hay production on Navajo Nation, resulting in total economic losses of $8.2 million and $0.4 million for the cattle and hay sectors, respectively.
A learning algorithm for visual pose estimation of continuum robots
Creators: name: Reiter, Austin David
name: Goldman, Roger Eric
name: Bajo, Andrea
name: Iliopoulos, Konstantinos
name: Simaan, Nabil
name: Allen, Peter K.
Publisher: name: Columbia University
Year: 2011
Subjects: Robotics

description: Continuum robots offer significant advantages for surgical intervention due to their down-scalability, dexterity, and structural flexibility. While structural compliance offers a passive way to guard against trauma, it necessitates robust methods for online estimation of the robot configuration in order to enable precise position and manipulation control. In this paper, we address the pose estimation problem by applying a novel mapping of the robot configuration to a feature descriptor space using stereo vision. We generate a mapping of known features through a supervised learning algorithm that relates the feature descriptor to known ground truth. Features are represented in a reduced sub-space, which we call eigen-features. The descriptor provides some robustness to occlusions, which are inherent to surgical environments, and the methodology that we describe can be applied to multi-segment continuum robots for closed-loop control. Experimental validation on a single-segment continuum robot demonstrates the robustness and efficacy of the algorithm for configuration estimation. Results show that the errors are in the range of 1°.
Two definitions of fractional derivatives of power functions
Creators: name: Andriambololona, Raoelina
name: Ranaivoson, Tokiniaina
name: Rakotoson, Hanitriarivo
name: Roland, Raboanary
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics

description: We consider the set of power functions defined on the set of positive real number, and their linear combinations. After recalling some properties of the gamma function, we give two general definitions of derivatives of positive and negative integers, positive and negative fractional orders.Properties of linearity and commutativity are studied and the notions of semi-equality,semi-linearity and semi-commutativity are introduced. Our approach gives a unified definition of the common derivatives and integrals and their generalization.
description: 10 pages
An analysis of a Soninke Ajami poem
Creators: name: Magassouba, Samby Khalil
name: Dramé, Djibril
Publisher: name: Zenodo
Year: 2019

description: This presentation deals with a Soninke Ajami poem about fish, water and fire. The fish is very strong in the water and becomes very weak while on fire. The fire cannot resist the force of the water. This poem is used to guide people to do good things and be humble in life. In the first part of the presentation, we will introduce the poem and play the recording as sung by the author. In the second part we will analyse and explain the poem using some known literary sources.

Blog: ajami.hypotheses.org/

Project: www.manuscript-cultures.uni-hamburg.de/ajami/index_e.html
title: Climatic Impact on Northeast Arctic Cod Year-class Strength: Relevance to the Ricker and Beverton-Holt Models for Determination of the Recruitment-stock Dependence
Creators: name: Kotenev, B.N.
name: Serebryakov, V.P.
name: Bondarenko, M.V.
name: Morozov, A.D.
Publisher: name: ASC 2009 - Theme session E
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.Integral quantitative assessment of the environmental impact on the NEA cod year-class strength has been made with use of the survival index. Three types of survival conditions with different impact of spawning stock on recruit abundance were difined. There is a significant correlation between the survival index and the spawning stock, the recruitment abundance (40,1%), the water temperature
Thermodynamic inconsistency in quasiparticle model - a revisit
Creators: name: Bannur, Vishnu M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Widely studied quasiparticle models for quark gluon plasma is revisited here to understand the statistical mechanics and thermodynamics of the system. We investigate the statistical mechanics and thermodynamics inconsistencies involved in these models and their consequences in the observables. Quasiparticle model is a phenomenological model with few parameters and by adjusting them all models fit the results of lattice gauge simulation of gluon plasma \cite{bo.1}. However, after fixing 2 of the 3 parameters of the model by physical arguments, only one quasiparticle model, which is consistent with both statistical mechanics and thermodynamics, fits the Bielefeld lattice data \cite{bo.1}. The same model also fits the recent lattice results of Wuppertal-Budapest group \cite{fo.1}, which deals with precision SU(3) thermodynamics for a large temperature range, reasonably well.
description: 9 pages, 4 figures, article -revised
Exploring the Dynamism between Propositional Complexity and Error Rate: A Case Study
Creators: name: Van Horn, Jordan
Publisher: name: Columbia University
Year: 2017
Subjects: Applied linguistics
Conversation analysis
Second language acquisition
Language and languages

description: This case study analyzed data from an asynchronous written mediated exchange between a native speaker and nonnative speaker of English. Three methods of analysis- error analysis, propositional complexity (idea units), and qualitative analysis were used to analyze learner performance over time. The results from these methods were visualized and interpreted according from Complex Dynamic Systems Theory (CDST) perspective, which allows longitudinal language production data to be interpreted from multiple perspectives so that change can be understood at both the micro and macro levels. Results from the analysis revealed patterns of linguistic change both within and between participants as they interacted over time. Several instances of continuity in language production were observed between the participants, including a drop in error rate that coincided with an increase in minor idea units during one turn of the exchange. Results from a qualitative analysis offer several explanations for this finding and are related to the implications this holds for CDST.
Une étude analytique de la poésie du cheick Mouhammad Abdoulaye Souadou
Creators: name: Boly, Hamadou
Publisher: name: Zenodo
Year: 2019

description: Cheick Mouhammad Abdoulaye Souadou (m. 1852) fut une figure remarquable du soufisme du 19eme siècle au Mali. Il contribua grandement à la diffusion du soufisme à Dilly et ses environnants. I produisit ainsi plusieurs poésies élogieuses à l’honneur du Prophète. Sa descendance Oumou Dilly et son enfant Cheik Modibo Kane prirent le flambeau de sa pensée soufie après sa mort. Nous allons traiter ici et étudier l’une de ses poésies panégyriste dans cet exposé.

Blog: ajami.hypotheses.org/

Project: www.manuscript-cultures.uni-hamburg.de/ajami/index_e.html
Anthurium brownii Mast.
Creators: name: Ortiz, Orlando Oriel
name: de Stapf, María Sánchez
name: Baldini, Riccardo Maria
name: Croat, Thomas Bernard
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Alismatales
Araceae
Anthurium
Anthurium brownii

description: Anthurium brownii Mast. Material examined. Cerro Pirre, campamento Rancho Frío, cercano a la loma ensucia pecho; 07°59′49″N, 077°42′45″W; 636 m; 2 Aug. 2016; O. O. Ortiz 2667 (PMA). Identification. This species is easily recognized by its epiphytic habit, persistent fibrous cataphylls, cordate to hastate-trilobate blades, usually with undulate margins and lilac spadices. In the field, it can be confused with Anthurium sp. 2, but differs in having larger blades, green cucullate spathes, and yellow spadices. Distribution and ecology. Colombia, Costa Rica, Ecuador, Panama, and Venezuela. In the study area, this species grows at mid-elevation (500– 700 m) areas in evergreen forests. It is relatively abundant and can grow occasionally as terrestrial (falling from trees), but is usually epiphytic.
description: Published as part of Ortiz, Orlando Oriel, de Stapf, María Sánchez, Baldini, Riccardo Maria & Croat, Thomas Bernard, 2019, Synopsis of aroids (Alismatales, Araceae) from Cerro Pirre (Darién Province, Panama), pp. 651-689 in Check List 15 (4) on pages 659-660, DOI: 10.15560/15.4.651
Inversion of airborne electromagnetic data in 2.5D
Creators: name: Yu, Wing Wa
Publisher: name: University of British Columbia
Year: 2012

description: In this work, we implement an inversion algorithm for airborne electromagnetic (AEM) data in the frequency domain by using 2D conductivity models. First, we discretize the 2.5D Maxwell's equations on a staggered grid and test the numerical accuracy of the forward solution. The inverse problem is then solved by regularized minimization approach using the limited memory BFGS variant of the quasi-Newton method. Next, EM responses from a synthetic 2D conductivity model are inverted to validate the algorithm. Finally, we use the algorithm on an AEM field dataset from a RESOLVE survey and compare the inversion results to those obtained from a well-established 1D implementation.
Duality for bounded derived categories of complete intersections
Creators: name: Stevenson, Greg
Publisher: name: arXiv
Year: 2012
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: We show that every thick subcategory of the singularity category of a complete intersection ring is self dual. We also prove the analogous statement for thick subcategories of the bounded derived category and give applications to the symmetry of vanishing of cohomology. These results are also proved for certain complete intersection schemes.
description: 12 pages, comments welcome - minor corrections and added a few details
The Wisconsin Community Corrections Story
Creators: name: Williams, Jared
name: Schiraldi, Vincent N.
name: Bradner, Kendra
Publisher: name: Columbia University
Year: 2019
Subjects: Parole
Parole--U.S. states
Probation
Community-based corrections
Criminal justice, Administration of

description: Wisconsin serves as a good example of a place where parole and probation supervision are contributing to a prison population that is highly racially disparate and growing. The number of people under parole supervision in Wisconsin exceeds the national average, and lengths of stay on parole are estimated at nearly twice (1.7 times) the national average. Failure rates under supervision in Wisconsin are also higher than average for other states, both nationally and in the Great Lakes Region. Nationally, Black people are disproportionately supervised and disproportionately reincarcerated for supervision violations. Wisconsin rates of supervision and reincarceration for Black people are also higher than these already-inflated national numbers. Ironically, then, these community-based mechanisms, which originated as alternatives to incarceration, are actually contributing to its rise in Wisconsin and elsewhere in the United States at the very time when the foundations of mass incarceration have been rejected by many on both sides of the aisle. The good news is that states around the country have begun to safely and effectively reduce their rates of both supervision and revocation, as well as return to prison for violations. In this report, we will examine the state of community corrections in Wisconsin, concluding with recommendations for reducing the scope and negative impact of parole and probation supervision.
Dense packings of spheres in cylinders I. Simulations
Creators: name: Mughal, A.
name: Chan, H. K.
name: Weaire, D.
name: Hutzler, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the optimal packing of hard spheres in an infinitely long cylinder, using simulated annealing, and compare our results with the analogous problem of packing disks on the unrolled surface of a cylinder. The densest structures are described and tabulated in detail up to D/d=2.873 (ratio of cylinder and sphere diameters). This extends previous computations into the range of structures which include internal spheres that are not in contact with the cylinder.
description: 18 pages, 14 figures, 1 table, to be submitted to PRE
Video from a Single Coded Exposure Photograph using a Learned Over-Complete Dictionary
Creators: name: Hitomi, Yasunobu
name: Gu, Jinwei
name: Gupta, Mohit
name: Mitsunaga, Tomoo
name: Nayar, Shree K.
Publisher: name: Columbia University
Year: 2011
Subjects: Computer science

description: Cameras face a fundamental tradeoff between the spatial and temporal resolution - digital still cameras can capture images with high spatial resolution, but most high-speed video cameras suffer from low spatial resolution. It is hard to overcome this tradeoff without incurring a significant increase in hardware costs. In this paper, we propose techniques for sampling, representing and reconstructing the space-time volume in order to overcome this tradeoff. Our approach has two important distinctions compared to previous works: (1) we achieve sparse representation of videos by learning an over-complete dictionary on video patches, and (2) we adhere to practical constraints on sampling scheme which is imposed by architectures of present image sensor devices. Consequently, our sampling scheme can be implemented on image sensors by making a straightforward modification to the control unit. To demonstrate the power of our approach, we have implemented a prototype imaging system with per-pixel coded exposure control using a liquid crystal on silicon (LCoS) device. Using both simulations and experiments on a wide range of scenes, we show that our method can effectively reconstruct a video from a single image maintaining high spatial resolution.
Cross-Correlated Responses of Topological Superconductors and Superfluids
Creators: name: Nomura, Kentaro
name: Ryu, Shinsei
name: Furusaki, Akira
name: Nagaosa, Naoto
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study nontrivial responses of topological superconductors and superfluids to the temperature gradient and rotation of the system. In two-dimensional gapped systems, the Strěda formula for the electric Hall conductivity is generalized to the thermal Hall conductivity. Applying this formula to the Majorana surface states of three-dimensional topological superconductors predicts cross-correlated responses between the orbital angular momentum and thermal polarization (entropy polarization). These results can be naturally related to the gravitoelectromagnetism description of three-dimensional topological superconductors and superfluids, analogous to the topological magnetoelectric effect in ${\mathbb{Z}}_2$ topological insulators.
description: 7 pages, 1 figure
Introduction: Investigating Written Dyadic Interaction through a Complex Dynamic Systems Theory Perspective
Creators: name: Dean, Anna Priscilla Ciriani
name: Ahmed, Shafinaz
Publisher: name: Columbia University
Year: 2017
Subjects: Second language acquisition
Historical linguistics
Applied linguistics
Dyadic analysis (Social sciences)

description: Since its inception in the late 1960’s, the field of Second Language Acquisition (SLA) has undergone many transformations. As pre-existing theories have been expanded upon and new theories introduced, researchers and practitioners have come to a deeper understanding of the second language (L2) learning process. The past two decades, in particular, have seen a shift in the way that L2 learning is conceived. Ever since Diane Larsen-Freeman published her seminal article on complex systems and L2 development (Larsen-Freeman, 1997), the theory known as Complex Dynamic Systems Theory (CDST) has brought a new orientation into SLA discourse. Since then, researchers have transferred their attention from acquisition to development, linearity to nonlinearity, and stability to variability. It is this shift that provides the impetus for this special issue of the Teachers College Working Papers in TESOL and Applied Linguistics.

In this issue, four studies apply CDST concepts and various methods of data analysis to a single, naturalistic dataset, which consists of an asynchronous, dyadic written e-mail interaction between a native speaker (NS) and non-native speaker (NNS) of English. The findings within the different studies are varied and together provide a complex, yet not entirely complete, view of intercultural interaction and developing interlanguage as dynamic systems.

This introduction will provide some historical background for CDST, followed by a discussion of the characteristics of dynamic systems. Prior empirical research within the CDST framework will also be discussed. Finally, the context of the special issue will be described in more detail along with a brief summary of the four studies that comprise this special issue.
Preliminary notes on a page of premodern Songhay and Tamasheq poetry from Timbuktu
Creators: name: Souag, Lameen
Publisher: name: Zenodo
Year: 2019

description: Among catalogued non-Arabic materials at the Ahmed Baba Institute of Higher Learning and Islamic Research, one fragment consisting of a single page stands out in several respects. Its format is quite unusual among West African Ajami materials in the prominence given to the Ajami material: it consists of two finely calligraphed non-Arabic poems, one in Koyra Chiini (Songhay) and one in Tamasheq (Tuareg Berber), with Arabic marginal and interlinear commentaries explaining the first of them. Linguistically, unlike most material examined, it seems to reflect a relatively early source: both the Koyra Chiini and the Tamasheq poems show archaisms predicted for earlier stages of the languages but unattested in 20th century materials. This presentation will explore the content of this fragment and its consequences for our understanding of the linguistic history of the region.

Blog: ajami.hypotheses.org/

Project: www.manuscript-cultures.uni-hamburg.de/ajami/index_e.html
Magnetars: fact or fiction?
Creators: name: Tong, H.
name: Xu, R. X.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) are enigmatic pulsar-like objects. The energy budget is the fundamental problem in their studies. In the magnetar model, they are supposed to be powered by the extremely strong magnetic fields (>~ 10^14 G) of neutron stars. Observations for and against the magnetar model are both summarized. Considering the difficulties encountered by the magnetar model to comfortably understand more and more observations, one may doubt that AXPs and SGRs are really magnetars. If they are not magnetar candidates (including magnetar-based models), then they must be "quark star/fallback disk" systems.
description: 10 pages, 1 figure; talk at SMFN2011
The Audience in the Mind's Eye: How Journalists Imagine Their Readers
Creators: name: Robinson, James G.
Publisher: name: Columbia University
Year: 2019
Subjects: Journalism
Online journalism
Journalism--Technological innovations
News audiences
Journalists--Attitudes

description: The conventional wisdom of the digital era is that journalists can now know their audiences in far more intimate detail than at any other time in the history of the profession. Previously, journalists based their audience knowledge primarily on their closest social circles. Now, new tools can help them solicit readers’ feedback, analyze and understand readers’ behavior, and open new channels for conversation. These new capabilities promise to shine a light on the abstract audience—making one’s readers present, quantified and real. Drawing on the existing literature and an original case study, this paper asks whether the new tools of the digital age have indeed influenced the “audience in the mind’s eye.” Our evidence indicates that for the most part, they have not. In reviewing findings from the case study, we were struck by how little seems to have changed since the print era. Although they seemed more open to audience knowledge, the ways in which these reporters thought about their audiences was remarkably similar to those reported in classic ethnographies of the 1970s. The paper concludes with some hypotheses about why this may be so, and offers some possible approaches to improve audience awareness in the newsroom—in particular, a new perspective on the necessity (and difficulty) of diversity. It is our hope that this paper will inspire future research and experimentation—to narrow the gap between the audiences journalists have in mind and the audiences they serve.
title: Climate driven long-term evolution of oxygen concentration in the Baltic Sea: potential consequences for the Baltic cod (Gadus morhua L) stock
Creators: name: Hinrichsen, H.H.
name: Huwer, B.
name: Makarchouk, A.
name: Neuenfeldt, S.
name: Petereit, C.
name: Schaber, M.
name: Voss, R.
Publisher: name: ASC 2009 - Theme session E
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.Variations in oxygen conditions in the Baltic Sea ecosystem might have been influenced through several mechanisms. Generally, the frequency and magnitude of Major Baltic inflows has been identified as the major process facilitating the renewal of oxygen depleted water masses in the Baltic. Secondly, enhanced degradation of suspended organic matter by bacteria over the past decades might have increased oxygen consumption. Finally, effects of global warming are causing long-term variations in oxygen content and saturation, because the observed increase in temperature has led to a general decrease in oxygen solubility of water masses. The present study provides a detailed analysis of observed negative long-term trends in oxygen content and saturation within the Bornholm Basin, Baltic Sea. Based on field data and laboratory experiments, oxygen-dependent relationships were used to analyse the impact of the observed decrease of oxygen content in the Baltic Sea ecosystem on cod (Gadus morhua) stock-specific processes (e.g. survival rates of eggs, settlement probability of juveniles, habitat utilisation of adult spawning fish, age-structure of successful spawners, consumption rates of adult fish). Thereby, the study attempts to give answers to the major question how the Baltic Sea ecosystem and especially the Baltic cod stock may respond to future changes of the oxygen environment
Equilibration of isolated macroscopic quantum systems
Creators: name: Reimann, Peter
name: Kastner, Michael
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the equilibration of an isolated macroscopic quantum system in the sense that deviations from a steady state become unmeasurably small for the overwhelming majority of times within any sufficiently large time interval. The main requirements are that the initial state, possibly far from equilibrium, exhibits a macroscopic population of at most one energy level and that degeneracies of energy eigenvalues and of energy gaps (differences of energy eigenvalues) are not of exceedingly large multiplicities. Our approach closely follows and extends recent works by Short and Farrelly [2012 New J. Phys. 14 013063], in particular going beyond the realm of finite-dimensional systems and large effective dimensions.
description: 19 pages
Closing the Deal for Romney and Obama
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Political science
subject: FOS: Political science

description: The challenge for the Democrats is to find a way to keep Romney hostage to the far right of his party even after he has sewn up the nomination. As long as Romney is worried about his right flank, he will continue to participate in the extremist discourse of the Tea Party and others on the far right, making it easier for Obama to carry the center and the election. The White House, either deliberately or not, drew the Republicans into the destructive contraception discussion. If the Democrats are able to do a few more things like that, Obama probably will be able to close the deal.