cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Poisson ratio and excess low-frequency vibrational states in glasses
Creators: name: Duval, Eugène
name: Deschamps, Thierry
name: Saviot, Lucien
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In glass, starting from a dependence of the Angell's fragility on the Poisson ratio [V. N. Novikov and A. P. Sokolov, Nature 431, 961 (2004)], and a dependence of the Poisson ratio on the atomic packing density [G. N. Greaves et al., Nat. Mater. 10, 823 (2011)], we propose that the heterogeneities are predominantly density fluctuations in strong glasses (lower Poisson ratio) and shear elasticity fluctuations in fragile glasses (higher Poisson ratio). Because the excess of low-frequency vibration modes in comparison with the Debye regime (boson peak) is strongly connected to these fluctuations, we propose that they are breathing-like (with change of volume) in strong glasses and shear-like (without change of volume) in fragile glasses. As a verification, it is confirmed that the excess modes in the strong silica glass are predominantly breathing-like. Moreover, it is shown that the excess breathing-like modes in a strong polymeric glass are replaced by shear-like modes under hydrostatic pressure as the glass becomes more compact.
Societal relevance of ecosystem based management for fisheries policies (Policy Briefing 3 December 2020)
Creators: name: Schmidt, Joern
Publisher: name: Zenodo
Year: 2020

description: Presentation by Joern Schmidt, held at the policy briefing on "Forecasting fish distribution and abundance in the Atlantic Ocean: The challenge of balancing exploitation and sustainability" on 3 December 2020. The full briefing document is available here: https://zenodo.org/record/4289935
Spatial distribution of Spontaneous Parametric Down-Converted Photons for higher order Optical Vortices
Creators: name: Prabhakar, Shashi
name: Reddy, Salla Gangi
name: Aadhi, A
name: Kumar, Ashok
name: P, Chithrabhanu
name: Samanta, G. K.
name: Singh, R. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We make a source of entangled photons (SEP) using spontaneous parametric down-conversion (SPDC) in a non-linear crystal and study the spatial distribution of photon pairs obtained through the down-conversion of different modes of light including higher order vortices. We observe that for the Gaussian pump, the thickness of the SPDC ring varies linearly with the radius of pump beam. However, in case of vortex carrying beams, two concentric SPDC rings are formed for beams above a critical radius. The full width at half maximum (FWHM) of SPDC rings increase with increase in the order of optical vortex beams. The presence of a critical beam width for the vortices as well as the observed FWHM of the SPDC rings are supported with our numerical results.
description: 6 pages, 8 figures
A Tropospheric Emission Spectrometer HDO/H2O retrieval simulator for climate models
Creators: name: Field, Robert Dode
name: Risi, C.
name: Schmidt, Gavin
name: Worden, J.
name: LeGrande, Allegra N.
name: Voulgarakis, A.
name: Sobel, Adam H.
name: Healy, R. J.
Publisher: name: Columbia University
Year: 2012
Subjects: Simulation methods
Climatology

description: Retrievals of the isotopic composition of water vapor from the Aura Tropospheric Emission Spectrometer (TES) have unique value in constraining moist processes in climate models. Accurate comparison between simulated and retrieved values requires that model profiles that would be poorly retrieved are excluded, and that an instrument operator be applied to the remaining profiles. Typically, this is done by sampling model output at satellite measurement points and using the quality flags and averaging kernels from individual retrievals at specific places and times. This approach is not reliable when the model meteorological conditions influencing retrieval sensitivity are different from those observed by the instrument at short time scales, which will be the case for free-running climate simulations. In this study, we describe an alternative, "categorical" approach to applying the instrument operator, implemented within the NASA GISS ModelE general circulation model. Retrieval quality and averaging kernel structure are predicted empirically from model conditions, rather than obtained from collocated satellite observations. This approach can be used for arbitrary model configurations, and requires no agreement between satellite-retrieved and model meteorology at short time scales. To test this approach, nudged simulations were conducted using both the retrieval-based and categorical operators. Cloud cover, surface temperature and free-tropospheric moisture content were the most important predictors of retrieval quality and averaging kernel structure. There was good agreement between the δD fields after applying the retrieval-based and more detailed categorical operators, with increases of up to 30‰ over the ocean and decreases of up to 40‰ over land relative to the raw model fields. The categorical operator performed better over the ocean than over land, and requires further refinement for use outside of the tropics. After applying the TES operator, ModelE had δD biases of −8‰ over ocean and −34‰ over land compared to TES δD, which were less than the biases using raw model δD fields.
Report on the application of the tool for assets evaluation in the Museo Valle di Blenio and prioritization of interventions
Creators: name: Pensa, Iolanda
name: Scapozza, Cristian
name: Pucciarelli, Marta
Publisher: name: Zenodo
Year: 2020
Subjects: Cultural heritage protection
Museum Valle di Blenio
Museum emergency plan
Natural hazards

description: Report on the application of the tool for assets evaluation in the Museo Valle di Blenio and prioritization of interventions The application of a tool for assets evaluation focussed on the Museo Valle di Blenio, an historical and
 ethnographic museum located in the ancient palace called Palazzo dei Landfogti (House of Landfogti, also
 called Palazzo del Pretorio; Pretorio’s Palace) in Lottigna, Municipality of Acquarossa, Canton of Ticino,
 Switzerland. The assessment involved the team of the museum (the current curator and protagonists of the museum
 history, such as the former president of the museum, the former curator and one of the guardians),
 representatives of the Ticino Canton, the Civil Protection, the Centre for dialectology and ethnography
 (responsible for the coordination of the regional ethnographic museums), the Association of Ethnographic
 Museum of Ticino. The former curator of the museums is an art historian specialised in the collection and in the cultural heritage of the area, the honorary president of the museum is an expert of the history of the
 institution and of the territory and the curator Cristian Scapozza is a physical geographer also researcher at SUPSI and directly engaged in the CHEERS project.
description: Deliverable in the frame of the European project Interreg Alpine Space CHEERS Cultural Heritage. Risks and Securing activities https://www.alpine-space.eu/project/cheers/ Deliverable D.T1.2.2. Activity A.T1.2 Set up of methodology for the evaluation of cultural assets and prioritization of securing & salvaging interventions
Primary Education Management in Bangladesh: A Qualitative Exploration to Understand the Roles and Practices of Upazila (Sub-district) Education Officers
Creators: name: Saha, Somnath
Publisher: name: University of Leicester
Year: 2023
Subjects: Uncategorized

description: Researching Upazila (Sub-district) ' roles and practices is important for managing local primary education in Bangladesh. However, little is known about how they perceive and practice their roles. This study explored the perspectives of a group of Upazila Education Officers about their roles and practices. It also identified their challenges, strategies to overcome them, and their views on improving the practices. This study used a qualitative approach and collected data from twelve Upazila Education Officers using semi-structured interviews and one focus group discussion with the same interviewees. Collected data were analyzed thematically, focusing on the research questions. This study highlighted that the roles of the Upazila Education Officers are multifaceted, including academic, administrative, and financial management. They practiced their roles under a centralized system in a complex setting, and there was consistency between their expected and enacted roles. The Upazila Education Officers emphasized the notion of power-sharing, working closely with their Assistant Upazila Education Officers and delegating some roles to them. In addition, they perceived themselves as collaborative and consultative with a participatory management style. The findings also identified that the Upazila Education Officers faced multiple challenges due to their heavy workload, time constraints, and lack of expert and legitimate power. Additionally, a shortage of qualified human resources, including teachers and assistant education officers, the inactiveness of the school management committee, and the weak leadership of some Headteachers created management problems, as perceived by the Upazila Education Officers. Although they were not in a position to address all the challenges, they applied some coping strategies. These included discussion, communication, and stakeholders' involvement in solving problems. In addition, they perceived that more autonomy, resources, and expert power would be helpful for them to improve their role practices. Finally, some policy and practice implications are presented, and suggestions for further research are proposed to develop the roles and practices of the Upazila Education Officers.
Maiden, mother, chrome: feminist fictions of the female inhuman in American magazines, 1880-1936
Creators: name: Lipperini, Rebecca Jean
Publisher: name: No Publisher Supplied
Year: 2020

description: “Maiden, Mother, Chrome: Feminist Fictions of the Female Inhuman in American Magazines, 1880-1936” examines how middlebrow magazines in the U.S. wove together women, science, and fiction to produce a discourse on the female inhuman. This dissertation argues that despite the misogynist implications of dehumanizing women, the female inhuman is a contested site, used across ideological spectrums to varying results. Because these texts are frequently penned by minor authors and tend to be published in middlebrow magazines, these stories comprise an understudied archive in U.S. literary studies. Through extensive archive work, literary analysis, and cultural history, this dissertation excavates these fictions, and tells the story of a forgotten fad constellated around a permanent set of figures: the female machine, the worker bee, and the alien from outer space.Although the trope of the machine, the hive, and the alien are instantly recognizable as science fiction tropes, this dissertation shows instead that these science fiction figures were in fact inherited from a middlebrow periodical context. Women writing for periodicals used these tropes in creative and unexpected ways during the late nineteenth and early twentieth century, which has been lost in the masculinization of SF. These texts are the earliest extent iterations of the trope, and they actively shape the genre in the decades that follow.The figures of the female inhuman in the chapters that follow are a reaction against women’s exclusion from the category of the human, which, because it is perceived to be genderless, is in fact perceived to be male. For many of these texts, the logic of the human is not dismantled, merely shifted to allow for women’s inclusion. That being said, one contribution of this project is to look at moments of the embrace of the inhuman. In these tales, we can trace a genealogy of feminist thinking that imagines gender to be functional and artificial, which anticipates later feminist theories of gender as performance and as aesthetic.
Glacier response to North Atlantic climate variability during the Holocene
Creators: name: Balascio, Nicholas L.
name: D'Andrea, William Joseph
name: Bradley, R. S.
Publisher: name: Columbia University
Year: 2015
Subjects: Glaciers--Measurement
Glaciers--Climatic factors
Holocene Geologic Period

description: Small glaciers and ice caps respond rapidly to climate variations, and records of their past extent provide information on the natural envelope of past climate variability. Millennial-scale trends in Holocene glacier size are well documented and correspond with changes in Northern Hemisphere summer insolation. However, there is only sparse and fragmentary evidence for higher-frequency variations in glacier size because in many Northern Hemisphere regions glacier advances of the past few hundred years were the most extensive and destroyed the geomorphic evidence of ice growth and retreat during the past several thousand years. Thus, most glacier records have been of limited use for investigating centennial-scale climate forcing and feedback mechanisms. Here we report a continuous record of glacier activity for the last 9.5 ka from southeast Greenland derived from high-resolution measurements on a proglacial lake sediment sequence. Physical and geochemical parameters show that the glaciers responded to previously documented Northern Hemisphere climatic excursions, including the "8.2 ka" cooling event, the Holocene Thermal Maximum, Neoglacial cooling, and 20th century warming. In addition, the sediments indicate centennial-scale oscillations in glacier size during the late Holocene. Beginning at 4.1 ka, a series of abrupt glacier advances occurred, each lasting ~100 years and followed by a period of retreat, that were superimposed on a gradual trend toward larger glacier size. Thus, while declining summer insolation caused long-term cooling and glacier expansion during the late Holocene, climate system dynamics resulted in repeated episodes of glacier expansion and retreat on multi-decadal to centennial timescales. These episodes coincided with ice rafting events in the North Atlantic Ocean and periods of regional ice cap expansion, which confirms their regional significance and indicates that considerable glacier activity on these timescales is a normal feature of the cryosphere. The data provide a longer-term perspective on the rate of 20th century glacier retreat and indicate that recent anthropogenic-driven warming has already impacted the regional cryosphere in a manner outside the natural range of Holocene variability.
A SINFONI Integral Field Spectroscopy Survey for Galaxy Counterparts to Damped Lyman-alpha Systems - IV. Masses and Gas Flows
Creators: name: Peroux, Celine
name: Bouche, Nicolas
name: Kulkarni, Varsha P.
name: York, Donald G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The circumgalactic medium (CGM) of typical galaxies is crucial to our understanding of the cycling of gas into, through and out of galaxies. One way to probe the CGM is to study gas around galaxies detected via the absorption lines they produce in the spectra of background quasars. Here, we present medium resolution and new ~0.4-arcsec resolution (~3 kpc at z~1) 3D observations with VLT/SINFONI of galaxies responsible for high-N(HI) quasar absorbers. These data allow to determine in details the kinematics of the objects: the four z~1 objects are found to be rotation-supported as expected from inclined discs, while the fifth z~2 system is dispersion-dominated. Two of the systems show sign of interactions and merging. In addition, we use several indicators (star formation per unit area, a comparison of emission and absorption kinematics, arguments based on the inclination and the orientation of the absorber to the quasar line-of-sight and the distribution of metals) to determine the direction of the gas flows in and out of these galaxies. In some cases, our observations are consistent with the gas seen in absorption being due to material co-rotating with their halos. In the case of absorbing-galaxies towards Q1009-0026 and Q2222-0946, these indicators point toward the presence of an outflow traced in absorption.
description: 18 pages, 11 figures, accepted for publication in MNRAS
2014-2015 Columbia Library Research Award Report
Creators: name: Yu, K. Kale
Publisher: name: Columbia University
Year: 2014
Subjects: Missionaries
Library science
Asians
Religion

description: Through the generous support of Columbia University Libraries, I researched the activities of American missionaries in Korea from the late nineteenth century. Using mostly the Missionary Research Library Archives based in Burke Library at Union Theological Seminary, I encountered first-hand notes, journals, diaries, letters, and sermons by pioneer missionaries, such as Henry G. Appenzeller who was the first resident missionary to Korea from the Methodist Episcopal Church.
Report on the Transnational Conference Open Data and Open Maps for Heritage Protection
Creators: name: Pucciarelli, Marta
name: Pensa, Iolanda
Publisher: name: Zenodo
Year: 2020
Subjects: Cultural heritage protection
Natural hazards
Open data
Open maps
GIS

description: The scope of this document (D.T2.3.2) is to present the outcomes of the science-practice lab for
 transnational dialogue on the use of geo-spatial information in cultural heritage valorisation. The
 international conference Open Data and Open Maps for Heritage Protection has been organized at
 Castelgrande Bellinzona (Ticino Canton, Switzerland) February 21st, 2020. The event brought the
 network of experts to the transnational level and has been a meaningful exchange of practices,
 strategies and tools, exploring the current situation and future scenarios in using open data and open
 maps to envision risks prevention and heritage protection. This report aims therefore to provide an
 overview of the event and the documentation gathered, including the program and thematic
 sessions, visual and audio recordings, discussions and feedbacks from speakers and participants,
 and a final conference evaluation. Open Data and Open Maps for Heritage Protection is an international conference organized at
 Castelgrande Bellinzona (Ticino Canton, Switzerland) February 21st, 2020. The event has been
 organised by the Laboratory of visual culture with the Institute of Earth Sciences (Department for
 Environment, Constructions and Design - University of Applied Sciences and Arts of Southern
 Switzerland, SUPSI) in collaboration with the Ticino Canton network for the enhancement of
 heritage (Sistema per la valorizzazione del patrimonio culturale SVPC, Department of Education,
 Culture and Sport of Ticino Canton) in the frame of the project CHEERS - Cultural HEritagE. Risks
 and Securing activities (ASP693) co-financed by the Interreg VB Alpine Space Programme through
 the European Regional Development Fund (ERDF).
description: Deliverable in the frame of the European project Interreg Alpine Space CHEERS Cultural Heritage. Risks and Securing activities https://www.alpine-space.eu/project/cheers/ Science-practice labs for transnational dialogue on the use of geo-spatial information in cultural heritage valorisation Deliverable D.T2.3.2
"Voices and Their Dis/Content in Taiwan Documentary" and "From Social Activism to Eco Activism: Current Situation of Taiwan Documentary"
Creators: name: Hong, Guo-Juin
name: Chen, Ru-Shou Robert
Publisher: name: Columbia University
Year: 2013
Subjects: Documentary films
Motion pictures
Asians

description: This video features two lectures on documentary film in Taiwan. First is "Voices and Their Dis/Content in Taiwan Documentary" by Professor Guo-Juin Hong of Duke University. Second is "From Social Activism to Eco Activism: Current Situation of Taiwan Documentary" by Professor Ru-Shou Robert Chen of National Chengchi University.
MPEC 2025-C61 : 2025 CT1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 CT1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
"Globalization Through Taiwanese Women's Documentary Lens: The Case of Ho Chao-ti" and "Taiwan Documentary, Transnational Perspective"
Creators: name: Sang, Tze-Lan Deborah
name: Chao, Shi-Yan
Publisher: name: Columbia University
Year: 2013
Subjects: Documentary films
Motion pictures
Asians

description: This video features two lectures on Taiwanese documetary film: "Globalization Through Taiwanese Women's Documentary Lens: The Case of Ho Chao-ti" by Professor Tze-lan Deborah Sang of Michigan State University and "Taiwan Documentary, Transnational Perspective" by Dr. Shi-Yan Chao
Enhanced two-photon absorption using true thermal light
Creators: name: Jechow, Andreas
name: Seefeldt, Michael
name: Kurzke, Henning
name: Heuer, Axel
name: Menzel, Ralf
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Two-photon excited fluorescence (TPEF) is a standard technique in modern microscopy but still affected by photo-damage of the probe. It was proposed that TPEF can be enhanced by using entangled photons, but has proven to be challenging. Recently it was shown that some features of entangled photons can be mimicked with thermal light, which finds application in ghost imaging, sub-wavelength lithography and metrology. Here, we utilize true thermal light from a super-luminescence diode to demonstrate enhanced TPEF compared to coherent light using two common fluorophores and luminescent quantum dots. We find that the two-photon absorption rate is directly proportional to the measured degree of second-order coherence, as predicted by theory. Our results show that photon bunching can be exploited in two-photon microscopy with the photon statistic providing a new degree of freedom.
description: Nature Photonics 2013
Importance of integrated ocean observation and networks to understand our ocean (Policy Briefing 3 December 2020)
Creators: name: de Jong, Femke
Publisher: name: Zenodo
Year: 2020

description: Presentation by Femke de Jong, held at the policy briefing on "Forecasting fish distribution and abundance in the Atlantic Ocean: The challenge of balancing exploitation and sustainability" on 3 December 2020. The full briefing document is available here: https://zenodo.org/record/4289935
description: The Blue‐Action project has received funding from the European Union's Horizon 2020 Research and Innovation Programme under Grant Agreement No 727852.
Panel discussion with Ho Chao-ti 賀照緹
Creators: name: Columbia University Libraries/Information Services
Publisher: name: Columbia University
Year: 2013
Subjects: Documentary films
Motion pictures
Asians

description: A discussion with filmmaker Ho Chao-ti about her film, Sock’n Roll 台灣黑狗兄 (2013), a documentary about the predicament faced by Taiwan’s small enterprises through the story of a sock town in rapid decline.
Charge transfer excitations from excited state Hartree-Fock subsequent minimization scheme
Creators: name: Theophilou, Iris
name: Tassi, M.
name: Thanos, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Photoinduced charge-transfer processes play a key role for novel photovoltaic phenomena and devices. Thus, the development of ab initio methods that allow for an accurate and computationally inexpensive treatment of charge-transfer excitations is a topic that nowadays attracts a lot of scientific attention. In this paper we extend an approach recently introduced for the description of single and double excitations (M. Tassi, I. Theophilou and S. Thanos, Int. J. Quantum Chem., (113), 690 (2013), M. Tassi, I. Theophilou and S. Thanos, J. Chem. Phys. (138), 124107 (2013)) to allow for the description of intermolecular charge-transfer excitations. We describe an excitation where an electron is transferred from a donor system to an acceptor one, keeping the excited state orthogonal to the ground state and avoiding variational collapse. These conditions are achieved by decomposing the space spanned by the Hartree-Fock (HF) ground state orbitals into four subspaces: The subspace spanned by the occupied orbitals that are localized in the region of the donor molecule, the corresponding for the acceptor ones and two more subspaces containing the virtual orbitals that are localized in the neighborhood of the donor and the acceptor, respectively. Next, we create a Slater determinant with a hole in the subspace of occupied orbitals of the donor and a particle in the virtual subspace of the acceptor. Subsequently we optimize both the hole and the particle by minimizing the HF energy functional in the corresponding subspaces. Finally, we test our approach by calculating the lowest charge-transfer excitation energies for a set of tetracyanoethylene-hydrocarbon complexes, that have been used earlier as a test set for such kind of excitations.
Geometric characterization of $L_1$-spaces
Creators: name: Yadgorov, Normuxammad
name: Ibragimov, Mukhtar
name: Kudaybergenov, Karimbergen
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46B20

description: The paper is devoted to a description of all strongly facially symmetric spaces which are isometrically isomorphic to $L_1$-spaces. We prove that if $Z$ is a real neutral strongly facially symmetric space such that every maximal geometric tripotent from the dual space of $Z$ is unitary then, the space $Z$ is isometrically isomorphic to the space $L_1(Ω, Σ, μ),$ where $(Ω, Σ, μ)$ is an appropriate measure space having the direct sum property.
description: Accepted to publication in the journal Studia Mathematica. arXiv admin note: text overlap with arXiv:math/0305342 by other authors
Panel discussion with Ke Chin-Yuan 柯金源
Creators: name: Columbia University Libraries/Information Services
Publisher: name: Columbia University
Year: 2013
Subjects: Fishers
Documentary films
Motion pictures
Asians

description: A discussion with filmmaker Ke Chin-Yuan about his film, "Ebb and Flow" 退潮 (2010), a documentary about the traditional lifestyle and natural environment of the fishermen living in the middle-west coast of Taiwan.
The CN/C15 N isotopic ratio towards dark clouds
Creators: name: Hily-Blant, Pierre
name: Forêts, G. Pineau Des
name: Faure, Alexandre
name: Gal, Romane Le
name: Padovani, Marco
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Understanding the origin of the composition of solar system cosmomaterials is a central question, not only in the cosmochemistry and astrochemistry fields, and requires various approaches to be combined. Measurements of isotopic ratios in cometary materials provide strong constraints on the content of the protosolar nebula. Their relation with the composition of the parental dark clouds is, however, still very elusive. In this paper, we bring new constraints based on the isotopic composition of nitrogen in dark clouds, with the aim of understanding the chemical processes that are responsible for the observed isotopic ratios. We have observed and detected the fundamental rotational transition of C$^{15}$N towards two starless dark clouds, L1544 and L1498. We were able to derive the column density ratio of C$^{15}$N over $^{13}$CN towards the same clouds, and obtain the CN/C$^{15}$N isotopic ratios, which were found to be $500\pm75$ for both L1544 and L1498. These values are therefore marginally consistent with the protosolar value of 441. Moreover, this ratio is larger than the isotopic ratio of nitrogen measured in HCN. In addition, we present model calculations of the chemical fractionation of nitrogen in dark clouds, which make it possible to understand how CN can be deprived of $^{15}$N and HCN can simultaneously be enriched in heavy nitrogen. The non-fractionation of N2H+, however, remains an open issue and we propose some chemical way of alleviating the discrepancy between model predictions and the observed ratios.
description: Accepted for publication in A&A
The effect of program implementation quality on the social-emotional learning and negative mental health of urban middle school students in the MOSAIC intervention
Creators: name: Linsky, Arielle Claire Vanpee
Publisher: name: No Publisher Supplied
Year: 2020

description: Social-emotional and character development (SECD) programs promote the development of youth’s social-emotional skills (e.g., empathy) and cultivation of pro-social character virtues (e.g., gratitude). When provided universally within the school context, these interventions have been shown to increase students’ social-emotional learning (SEL) and decrease emotional distress. Higher levels of program implementation have been associated with more positive student outcomes. The acquisition of SEL has been hypothesized as a pathway between intervention and mental health outcomes. However, the majority of research has been conducted in schools serving predominantly middle-class and White students.The current study sought to address this gap by evaluating the association of program implementation quality and student outcomes in an SECD intervention (“MOSAIC”) in three urban middle schools. Participants were 6-8th grade students, predominantly students of color from low-income households, who attended an intervention school for two years (n = 308). Utilizing multilevel modeling, program implementation quality was tested as a predictor of teacher-rated SEL and self-reported negative mental health in Year 1 and Year 2 of the MOSAIC intervention. Teacher-rated SEL was also tested as a mediator of program implementation quality and student negative mental health. Program implementation quality was found to significantly predict student negative mental health in Year 2, such that students with stronger implementation quality presented with less mental health problems. Program implementation quality did not predict SEL in Year 1 or 2. SEL was not a significant mediator between program implementation quality and negative mental health. However, post-hoc analysis revealed that Fall SEL was a significant moderator of program implementation quality in predicting student negative mental health in Year 2. Students with higher SEL at the start of the year appeared to benefit more from high quality program implementation, resulting in fewer mental health problems at the end of the year. These findings suggest that in the urban middle school setting, high quality implementation of SECD interventions is positively associated with student mental health outcomes. Results also illuminate the complexity of implementation and measurement in this setting and the need for a context-specific approach for future research in this area.
Ultrafast switching to a stable hidden topologically protected quantum state in an electronic crystal
Creators: name: Stojchevska, L.
name: Vaskivskyi, I.
name: Mertelj, T.
name: Kusar, P.
name: Svetin, D.
name: Brazovskii, S.
name: Mihailovic, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Hidden states of matter with novel and unusual properties may be created if a system out of equilibrium can be induced to follow a trajectory to a state which is inaccessible or does not even exist under normal equilibrium conditions. Here we report on the discovery of a hidden (H) topologically protected electronic state in a layered dichalcogenide 1T-TaS2 crystal reached as a result of a quench caused by a single 35 fs laser pulse. The properties of the H state are markedly different from any other state of the system: it exhibits a large drop of electrical resistance, strongly modified single particle and collective mode spectra and a marked change of optical reflectivity. Particularly important and unusual, the H state is stable for an arbitrarily long time until a laser pulse, electrical current or thermal erase procedure is applied, causing it to revert to the thermodynamic ground state. Major observed events can be reproduced by a kinetic model describing the conversion of photo excited electrons and holes into an electronically ordered crystal, thus converting a Mott insulator to a conducting H state. Its long-time stability follows from the topological protection of the number of periods in the electronic crystal.
description: 21 pages and 5 figures, separate supplementary material
Correlation scales of digital elevation models in developed coastal environments
Creators: name: Small, Christopher
name: Sohn, Robert
Publisher: name: Columbia University
Year: 2015
Subjects: Measurement
Altitudes
Coasts
Digital elevation models
Remote sensing
Geographic information systems
Geomorphology

description: Accuracy of digital elevation models (DEMs) often depends on how features of different spatial scales are represented. Scale dependence is particularly important in low gradient coastal environments where small vertical errors can affect large areas and where representation of fine scale topographic features can influence how DEMs are used for modeling inundation. It is commonly observed that different types of DEMs represent larger, coarse-scale topographic features similarly but differ in how they represent smaller, finer-scale features. The spatial-scale dependence of DEM accuracy can be quantified in terms of the correlation scale (λC); the spatial wavelength above which models agree with spectral coherency > 0.5 and below which they differ. We compare cross spectral analyses of the GDEM2 and SRTM global DEMs with 14,572 LiDAR-derived elevations along transects in diverse coastal environments of New York City. Both global DEMs have positive bias relative to LiDAR ground elevations, but bias (μ) and uncertainty (σ) of GDEM2 (μ: 8.1 m; σ: 7.6 m) are significantly greater than those of SRTM (μ: 1.9 m; σ: 3.6 m). Cross-spectral coherency between GDEM2 and the LiDAR DEM begins to roll-off at scales of λ < ~ 3 km, while coherency between SRTM and the LiDAR DEM begins to roll-off at scales of λ < ~ 1 km. The correlation scale below which coherency with LiDAR attains a signal to noise ratio of 1 is ~ 1 km for GDEM2 and ~ 0.5 km for SRTM; closely matching the divergence scales where the surface roughness of the land cover exceeds the roughness of the underlying terrain.
Viscous Evolution and Photoevaporation of Circumstellar Disks due to External FUV Radiation Fields
Creators: name: Anderson, Kassandra R.
name: Adams, Fred C.
name: Calvet, Nuria
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: This paper explores the effects of FUV radiation fields from external stars on circumstellar disk evolution. Disks residing in young clusters can be exposed to extreme levels of FUV flux from nearby OB stars, and observations show that disks in such environments are being actively photoevaporated. Typical FUV flux levels can be factors of \sim 10^{2} - 10^{4} higher than the interstellar value. These fields are effective in driving mass loss from circumstellar disks because they act at large radial distance from the host star, i.e., where most of the disk mass is located, and where the gravitational potential well is shallow. We combine viscous evolution (an α-disk model) with an existing FUV photoevaporation model to derive constraints on disk lifetimes, and to determine disk properties as functions of time, including mass loss rates, disk masses, and radii. We also consider the effects of X-ray photoevaporation from the host star using an existing model, and show that for disks around solar-mass stars, externally-generated FUV fields are often the dominant mechanism in depleting disk material. For sufficiently large viscosities, FUV fields can efficiently photoevaporate disks over the entire range of parameter space. Disks with viscosity parameter α= 10^{-3} are effectively dispersed within 1-3 Myr; for higher viscosities (α= 10^{-2}) disks are dispersed within \sim 0.25 - 0.5 Myr. Furthermore, disk radii are truncated to less than \sim100 AU, which can possibly affect the formation of planets. Our model predictions are consistent with the range of observed masses and radii of proplyds in the Orion Nebula Cluster.
description: 34 pages, 15 figures, accepted to The Astrophysical Journal
title: Rechtliche Darstellung der wahren Streitverhältnisse des J. S. Samuel Gruner, schweiz. Oberberghauptmanns, als Kläger contra Rudolph Meyer aus Aarau; 1810
title: die Forderungen aus einem Pachtkontrakte betreff.
titleType: Subtitle
Creators: name: Mittermaier, Carl Joseph Anton
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2010

description: Mutmaßl. Verf.: Carl Josef Anton Mittermaier. - In Fraktur
Observations on the flow structures and transport in a warm-core ring in the Gulf of Mexico
Creators: name: Lipinski, Doug
name: Mohseni, Kamran
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: This study presents several new observations from the study of a warm-core ring (WCR) in the Gulf of Mexico based on the ECCO2 global ocean simulation. Using Lagrangian coherent structures (LCS) techniques to investigate this flow reveals a pattern of transversely intersecting LCS in the mixed layer of the WCR which experiences consistent stretching behavior over a large region of space and time. A detailed analysis of this flow region leads to an analytical model velocity field which captures the essential elements that generate the transversely intersecting LCS. The model parameters are determined from the WCR and the resulting LCS show excellent agreement with those observed in the WCR. The three-dimensional transport behavior which creates these structures relies on the small radial outflow which is present in the mixed layer and is not seen below the pycnocline, leading to a sharp change in the character of the LCS at the bottom of the mixed layer. The flow behavior revealed by the LCS limits fluid exchange between the WCR and the surrounding ocean, contributing to the long life of WCRs. Further study of these structures and their associated transport behavior may lead to further insights into the development and persistence of such geophysical vortices as well as their transport behavior.
description: 12 pages
Regularity of the local fractional maximal function
Creators: name: Heikkinen, Toni
name: Kinnunen, Juha
name: Korvenpää, Janne
name: Tuominen, Heli
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42B25, 46E35

description: This paper studies smoothing properties of the local fractional maximal operator, which is defined in a proper subdomain of the Euclidean space. We prove new pointwise estimates for the weak gradient of the maximal function, which imply norm estimates in Sobolev spaces. An unexpected feature is that these estimates contain extra terms involving spherical and fractional maximal functions. Moreover, we construct several explicit examples which show that our results are essentially optimal. Extensions to metric measure spaces are also discussed.
description: 23 pages
A digital seismogram archive of nuclear explosion signals, recorded at the Borovoye Geophysical Observatory, Kazakhstan, from 1966 to 1999
Creators: name: An, Vadim A.
name: Ovtchinnikov, Vladimir M.
name: Kaazik, Pyotr B.
name: Adushkin, Vitaly V.
name: Sokolova, Inna N.
name: Aleschenko, Iraida B.
name: Mikhailova, Natalya N.
name: Kim, Won-Young
name: Richards, Paul G.
name: Patton, Howard J.
name: Phillips, W. Scott
name: Randall, George
name: Baker, Diane
Publisher: name: Columbia University
Year: 2015
Subjects: subject: Underground nuclear explosions--Detection
subject: Nuclear explosions
subject: Seismology--Observations
subject: Geology
subject: FOS: Earth and related environmental sciences

description: Seismologists from Kazakhstan, Russia, and the United States have rescued the Soviet-era archive of nuclear explosion seismograms recorded at Borovoye in northern Kazakhstan during the period 1966–1996. The signals had been stored on about 8000 magnetic tapes, which were held at the recording observatory. After hundreds of man-years of work, these digital waveforms together with significant metadata are now available via the project URL, namely http://www.ldeo.columbia.edu/res/pi/Monitoring/Data/ as a modern open database, of use to diverse communities. Three different sets of recording systems were operated at Borovoye, each using several different seismometers and different gain levels. For some explosions, more than twenty different channels of data are available. A first data release, in 2001, contained numerous glitches and lacked many instrument responses, but could still be used for measuring accurate arrival times and for comparison of the strengths of different types of seismic waves. The project URL also links to our second major data release, for nuclear explosions in Eurasia recorded in Borovoye, in which the data have been deglitched, all instrument responses have been included, and recording systems are described in detail. This second dataset consists of more than 3700 waveforms (digital seismograms) from almost 500 nuclear explosions in Eurasia, many of them recorded at regional distances. It is important as a training set for the development and evaluation of seismological methods of discriminating between earthquakes and underground explosions, and can be used for assessment of three-dimensional models of the Earth’s interior structure.
Bruno Blondé / Marc Boone / Anne-Laure van Bruaene (Eds.), City and Society in the Low Countries, 1100–1600. Cambridge, Cambridge University Press 2018
Creators: name: Jaser, Christian
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: 940 Geschichte Europas

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
ALMA disk imaging at band 10: [CI] and CO radial structures
Creators: name: Dent, Bill
Publisher: name: Zenodo
Year: 2020

description: We present resolved images of the HD100546 disk at ALMA band 10. Both CO 7-6 and [CI] 3P2-3P1 are bright and readily (simultaneously) imaged at 0.2arcsec resolution with relatively short integration times on ALMA. In order to study the molecular/atomic gas in this disk, the radial profiles and line widths of dust continuum, CO 7-6 and [CI] are compared with other transitions of both molecular and atomic species. We also compare these results with existing models. The HD100546 disk has a sharp outer edge in CO 3-2 at 440au, an order of magnitude larger than the mm dust ring. CO 7-6 has an excitation temperature 5x larger than 3-2, and not surprisingly, is found mostly at smaller radii, ~100au. Although [CI]2-1 excitation temperature is only 2x higher than CO 3-2, it too is mostly emitted from the ~100au region. We discuss the implications of this in terms of disk molecular/atomic structure.
MURR: Model Updating with Regularized Replay for Searching a Document Stream
Creators: name: Yang, Eugene
name: Tonellotto, Nicola
name: Lawrie, Dawn
name: MacAvaney, Sean
name: Mayfield, James
name: Oard, Douglas W.
name: Miller, Scott
Publisher: name: arXiv
Year: 2025
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: The Internet produces a continuous stream of new documents and user-generated queries. These naturally change over time based on events in the world and the evolution of language. Neural retrieval models that were trained once on a fixed set of query-document pairs will quickly start misrepresenting newly-created content and queries, leading to less effective retrieval. Traditional statistical sparse retrieval can update collection statistics to reflect these changes in the use of language in documents and queries. In contrast, continued fine-tuning of the language model underlying neural retrieval approaches such as DPR and ColBERT creates incompatibility with previously-encoded documents. Re-encoding and re-indexing all previously-processed documents can be costly. In this work, we explore updating a neural dual encoder retrieval model without reprocessing past documents in the stream. We propose MURR, a model updating strategy with regularized replay, to ensure the model can still faithfully search existing documents without reprocessing, while continuing to update the model for the latest topics. In our simulated streaming environments, we show that fine-tuning models using MURR leads to more effective and more consistent retrieval results than other strategies as the stream of documents and queries progresses.
description: Published at ECIR 2025. 16 pages, 4 figures
Mark Cane: 2014 Fellow of The Oceanography Society
Creators: name: Seager, Richard
Publisher: name: Columbia University
Year: 2015
Subjects: Climatology
Environmental sciences
Chemical oceanography
Biography

description: Mark Cane, who was honored in 2014 as a Fellow of The Oceanography Society, is the G. Unger Vetlesen Professor of Earth and Environmental Sciences at Columbia University, based at Columbia’s Lamont-Doherty Earth Observatory in Palisades, New York. He received a bachelor’s degree from Harvard in 1965 and his PhD from MIT in 1975. He moved to Lamont in 1985 and has made his research home there ever since. His unusual career has ranged from theoretical equatorial ocean dynamics to studying links between climate variability and social conflict. In all cases, he has applied his piercing intellect, deep intuition, and methodological rigor to make major advances in understanding of the ocean, the climate system, and how climate variability and change impact human society. In particular, Mark Cane is a founding father of seasonal-to-interannual climate prediction, a revolutionary field in ocean and climate science.
title: DEVELOPING ALTERNATIVE PRACTICES FOR MANAGEMENT OF FLEA BEETLES ATTACKING EGGPLANT AND LEAFY BRASSICACEOUS GREENS
Creators: name: Brockman, Robert
Publisher: name: University of Kentucky Libraries
Year: 2020
Subjects: Entomology

description: Flea beetles are a challenging pest for many producers of vegetable crops in Kentucky. Chewing numerous small holes in the leaves of their host plants, high flea beetle populations can quickly overwhelm unestablished crops. I tested the efficacy of several alternatives to insecticides within brassicaceous leafy greens and eggplant. Four field trials in 2019 and 2020 compared essential oil sprays, the woven-mesh row cover ProtekNet, the spunbonded row cover Agribon, and reflective silver mulch to an untreated control, a conventional insecticide rotation of dinotefuran and pyrethroids, and an organic insecticide rotation of spinosad and pyrethrins. The silver reflective mulch was used within the eggplant trials and was compared against black plastic mulch. This thesis demonstrates the efficacy of row covers in limiting damage by flea beetles and improving marketable yield in brassicaceous greens and eggplant. On the contrary, other new alternatives, including silver plastic mulches and the essential oils from thyme, rosemary, eucalyptus, neem, peppermint, and geranium showed no better control than the untreated control, and in some cases, reduced yield by harming plants. For this reason, further research and outreach should focus on the life expectancy of row covers and expanding their adoption.
description: © 2020 Robert Brockman