cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: The Relationship Between Eating Disorders and Ego Identity Development
Creators: name: Sparks, Mary Denise
Publisher: name: Utah State University
Year: 1993

description: The age of onset for eating disorders (anorexia and bulimia nervosa) among females is typically late adolescence. In the present study, it was hypothesized that the onset of eating disorders is related to the late-adolescent developmental task of identity development. Thirty-three late adolescent and young adult females who met DSM-III-R criteria for an eating disorder (anorexia nervosa, bulimia nervosa, or eating disorder not otherwise specified) and 33 control females completed the Extended Objective Measure of Ego Identity status -- 2 (EOMEIS-2). Results of chi square analyses revealed no significant differences between eating disorder and control females with regard to status of identity development. However, when identity status subscale scores were treated as continuous variables, several significant between-group mean differences emerged. In line with expectations, eating disorder subjects scored higher on ideological diffusion and moratorium, and they scored lower on ideological achievement. Eating disorder subjects also scored higher on interpersonal diffusion and lower on interpersonal achievement. In addition, there were significant correlations between ideological diffusion and measures of depression and anxiety. Unexpectedly, there were also significant correlations between ideological moratorium and measures of depression, anxiety, social alienation, family discord, and borderline personality symptomatology. The possible implications of these results for understanding frequently occurring, co-morbid symptoms in eating disorder subjects are discussed.
Land snail diversity can reflect degrees of anthropogenic disturbance
Creators: name: Douglas, Daniel D.
name: Brown, David R.
name: Pederson, Neil
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Conservation biology
subject: Forests and forestry
subject: Snails

description: Faunal indicators of old-growth forests in heavily-disturbed regions are virtually non-existent. However, land snails, in particular micro-snails, could reflect the impact of land-use on ecosystem integrity. Because of their size, limited mobility, and propensity to spend their entire lives at one locality due to lack of migratory behavior, micro-snails are susceptible to changes in land-use within forested ecosystems. Therefore, we proposed the hypothesis that micro-snails would reflect land-use in forested ecosystems. We sampled snail communities in paired old-growth and second-growth forests in three distinct ecoregions. Species diversity, richness, and abundance were greater in two of the three old-growth sites compared to paired second-growth sites. Across all of the ecoregions, 21 out of 70 species had an affinity for old-growth. Eighteen of which were statistically significant. These results suggest that anthropogenic disturbance plays a key role in shaping species diversity and community structure of land snail fauna. However, site specific factors also appear to be important moderators of the response, and the mechanisms of the process remain to be studied. Snails appear to be a promising group of organisms to use as indicators of historic forest disturbance. In order to maintain ecological integrity, forest managers should consider management strategies that are low impact and protect existing patches of old-growth forests.
Status of the QPACE Project
Creators: name: Baier, H.
name: Boettiger, H.
name: Drochner, M.
name: Eicker, N.
name: Fischer, U.
name: Fodor, Z.
name: Goldrian, G.
name: Heybrock, S.
name: Hierl, D.
name: Huth, T.
name: Krill, B.
name: Lauritsen, J.
name: Lippert, T.
name: Maurer, T.
name: McFadden, J.
name: Meyer, N.
name: Nobile, A.
name: Ouda, I.
name: Pivanti, M.
name: Pleiter, D.
name: Schäfer, A.
name: Schick, H.
name: Schifano, F.
name: Simma, H.
name: Solbrig, S.
name: Streuer, T.
name: Sulanke, K. H.
name: Tripiccione, R.
name: Wettig, T.
name: Winter, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We give an overview of the QPACE project, which is pursuing the development of a massively parallel, scalable supercomputer for LQCD. The machine is a three-dimensional torus of identical processing nodes, based on the PowerXCell 8i processor. The nodes are connected by an FPGA-based, application-optimized network processor attached to the PowerXCell 8i processor. We present a performance analysis of lattice QCD codes on QPACE and corresponding hardware benchmarks.
description: 7 pages, poster presented at the XXVI International Symposium on Lattice Field Theory, July 14-19, 2008, Williamsburg, Virginia, USA
"КОНКУРЕНТОСПОСОБНОСТЬ ПРЕДПРИЯТИЯ КАК ФАКТОР УСТОЙЧИВОГО РАЗВИТИЯ БИЗНЕСА"
Creators: name: Джабриев, Акбарали
name: Ташмухамедова, Фотима
Publisher: name: Zenodo
Year: 2025

description: Актуальность управления конкурентоспособностью предприятия заключается в стремительно изменяющихся рыночных условиях, где успешная адаптация и внедрение инноваций становятся ключевыми факторами для выживания и роста компании. Эффективное управление конкурентоспособностью способствует повышению производительности, улучшению качества продукции и укреплению позиций на рынке.
An Early Cambrian Rift to Post-Rift Transition in the Cordillera of Western North America
Creators: name: Bond, Gerard C.
name: Christie-Blick, Nicholas
name: Kominz, Michelle A.
name: Devlin, William J.
Publisher: name: Columbia University
Year: 1985
Subjects: subject: Plate tectonics
subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Continents
subject: Geodynamics

description: The upper Proterozoic and lower Palaeozoic wedge of miogeoclinal strata in the North American Cordillera is widely regarded as evidence for a proto-Pacific passive margin. The rifting history of this margin appears to have been protracted, possibly spanning more than 200 Myr in a tectonic setting that is not well understood. Quantitative subsidence analyses of lower Palaeozoic strata between British Columbia and Utah, however, provide indirect evidence that the transition from rifting to post-rift cooling occurred within a relatively short interval of time, although probably not synchronously, between 600 and 555 Myr. This age is significantly younger than that implied in previous studies. We describe here new field data, which, together with published geological data, provide direct evidence of a latest Proterozoic or early Cambrian age for the rift to post-rift transition. The data support recent arguments for widespread initiation of passive margins around the edge of the North American craton close to the Cambrian-Precambrian boundary.
Depositional Sequence Analysis Applied to Late Proterozoic Wilpena Group, Adelaide Geosyncline, South Australia
Creators: name: Von Der Borch, C. C.
name: Christie-Blick, Nicholas
name: Grady, A. E.
Publisher: name: Columbia University
Year: 1988
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Submarine geology
subject: Plate tectonics

description: The initial application of depositional sequence analysis to selected stratigraphic sections through outcropping Late Proterozoic strata of the Adelaide Geosyncline in South Australia has identified major depositional sequences within the several‐kilometre‐thick Wilpena Group. Sharp facies shifts in vertical stratigraphic sections are proposed as actual sequence boundaries which, provided they are the result of eustatic sea level variations, may be key elements for future attempts at inter‐regional chronostratigraphic correlation. Two major sequence boundaries are identified, one at the base of the Nuccaleena Formation (boundary A) and a second at the top of the Brachina Subgroup (boundary B). These are attributed to significant basinward shifts in coastal onlap resulting in subaerial exposure and at least localized erosion, followed in each case by establishment of relatively deepwater environments. A somewhat different boundary (boundary C) is associated with an interval of diagenetic dolostone interbeds and is interpreted either as a downlap surface within a sequence, or as a combined deepwater sequence boundary and downlap surface. It may have developed during an episode of reduced sediment input in response to a period of maximum transgression. Alternatively it may represent a hiatus at the termination of a depositional sequence, prior to subsequent downlap or onlap of the succeeding sequence. Boundary C lies a few metres below the stratigraphic level from which kilometre‐deep canyons have incised underlying sequences. These canyons, which are infilled by a complex succession of carbonate breccias, conglomerates, sandstone and mudstone, may have been eroded in a submarine setting by turbidity currents. Such a model requires a significant increase in rate of eustatic sea level fall or a decrease in the rate of tectonic subsidence, in order to move the locus of coastal onlap to the vicinity of the shelf edge. If the cause was eustatic, evidence for it should be found at an equivalent sequence boundary in Late Proterozoic basins remote from the Adelaide Geosyncline. Alternatively, the canyons may have been eroded in a subaerial setting and infilled by coastal sediments during an ensuing period of relative sea level rise. In this model a considerably greater drop in relative sea level is required, most likely related to localized tectonic uplift.
Exact Master Equation and Non-Markovian Decoherence for Quantum Dot Quantum Computing
Creators: name: Tu, Matisse W. Y.
name: Lee, Ming-Tsung
name: Zhang, Wei-Min
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this article, we report the recent progress on decoherence dynamics of electrons in quantum dot quantum computing systems using the exact master equation we derived recently based on the Feynman-Vernon influence functional approach. The exact master equation is valid for general nanostructure systems coupled to multi-reservoirs with arbitrary spectral densities, temperatures and biases. We take the double quantum dot charge qubit system as a specific example, and discuss in details the decoherence dynamics of the charge qubit under coherence controls. The decoherence dynamics risen from the entanglement between the system and the environment is mainly non-Markovian. We further discuss the decoherence of the double-dot charge qubit induced by quantum point contact (QPC) measurement where the master equation is re-derived using the Keldysh non-equilibrium Green function technique due to the non-linear coupling between the charge qubit and the QPC. The non-Markovian decoherence dynamics in the measurement processes is extensively discussed as well.
description: 15 pages, Invited article for the special issue "Quantum Decoherence and Entanglement" in Quantum Inf. Process
Wielands Ironie
Creators: name: Weissenborn, Georg Kurt
Publisher: name: University of British Columbia
Year: 2011

description: The object of this study is Wieland's concept of irony. Wieland did not put forward a "theory of irony", but he has commented on irony in his works, in his correspondence, and in the footnotes to his translations of classical authors. This thesis consists of four parts, and the investigation proceeds as follows: Part One reviews the literature on Wieland's irony in order to establish a basis on which a contribution can be made to Wieland scholarship. No one denies that Wieland uses irony, but many disagree on its origin, its function, and its historical association. Part Two constitutes a detailed analysis of Wieland's most characteristic comments on irony as they occur in chronological order. Thus, an insight is gained into the development of the poet's theoretical understanding of irony which was conditioned by his attitude toward Socrates, the first historical eiron. As Wieland’s anti-Platonism gathered momentum, his use of the words Ironie and ironisch increased, and so did his attempts at defining irony. They are most numerous in Aristipp, Wieland's last novel, in which he also deals most extensively with Socrates. Part Three concerns itself with Wieland's manner of presentation. It is a study of the way in which the poet employs irony, and it investigates the stylistic devices in the service of this irony, with initial emphasis on his change from Platonist to Ironist. Part Four concludes the investigation by contrasting Wieland's irony with certain aspects of the romantic irony of Friedrich Schlegel and Ludwig Tieck. While it appears that Wieland uses stylistic techniques derived from literary models which also served the writers of the romantic generation, it also becomes evident that the intent of Wieland’s irony was more socially oriented than theirs. His central interest is in man himself, not in man's metaphysical concern. Wieland's irony is not irony for its own sake, but didactic irony for the purpose of enlightening the reader. As such, Wieland's irony serves as the means of characterization based on the contrast between eiron and alazon. In the light of his deep commitment to Reason (Natur), Wieland does not employ irony for the sake of suspending natural laws in the service of the wondrous. Basically, he establishes a constellation consisting of three human types: the misguided ethical and metaphysical idealist (Schwarmer), the cynical sensualist (Sophist), arid the representative of the graceful, Socratic golden mean (Philosoph). Whereas previous studies examine stylistic influences by other ironic writers on Wieland's manner, of presentation, this investigation reveals a by far greater influence of Socrates on Wieland's understanding and uses of irony. In this, the German author came to reject the characterizations of the eiron Socrates as presented in the works of Aristophanes and Plato, in preference to Xenophon’s description of the Greek philosopher as a pragmatist.
Correlations in photon-numbers and integrated intensities in parametric processes involving three optical fields
Creators: name: Perina, Jan
name: Krepelka, Jaromir
name: Perina, Jan
name: Bondani, Maria
name: Allevi, Alessia
name: Andreoni, Alessandra
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Two strongly-pumped parametric interactions are simultaneously realized in a single nonlinear crystal in order to generate three strongly correlated optical fields. By combining together the outputs of two of the three detectors measuring intensities of the generated fields, we obtain the joint photocount statistics between the single field and the sum of the other two. Moreover, we develop a microscopic quantum theory to determine the joint photon-number distribution and the joint quasi-distributions of integrated intensities and prove nonclassical nature of the three-mode state. Finally, by performing a conditional measurement on the single field, we obtain a state endowed with a sub-Poissonian statistics, as testified by the analysis of the conditional Fano factor. The role of quantum detection efficiencies in this conditional state-preparation method is discussed in detail.
description: 9 pages, 14 figures
Lithosphere versus asthenosphere mantle sources at the Big Pine Volcanic Field, California
Creators: name: Gazel Dondi, Esteban
name: Plank, Terry A.
name: Forsyth, Donald W.
name: Bendersky, Claire
name: Lee, Cin-Ty A.
name: Hauri, Erik H.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Geochemistry
subject: FOS: Earth and related environmental sciences

description: Here we report the first measurements of the H2O content of magmas and mantle xenoliths from the Big Pine Volcanic Field (BPVF), California, in order to constrain the melting process in the mantle, and the role of asthenospheric and lithospheric sources in this westernmost region of the Basin and Range Province, western USA. Melt inclusions trapped in primitive olivines (Fo82–90) record surprisingly high H2O contents (1.5 to 3.0 wt.%), while lithospheric mantle xenoliths record low H2O concentrations (whole rock <75 ppm). Estimates of the oxidation state of BPVF magmas, based on V partitioning in olivine, are also high (FMQ +1.0 to +1.5). Pressures and temperatures of equilibration of the BPVF melts indicate a shift over time, from higher melting temperatures (∼1320°C) and pressures (∼2 GPa) for magmas that are >500 ka, to cooler (∼1220°C) and shallower melting (∼1 GPa) conditions in younger magmas. The estimated depth of melting correlates strongly with some trace element ratios in the magmas (e.g., Ce/Pb, Ba/La), with deeper melts having values closer to upper mantle asthenosphere values, and shallower melts having values more typical of subduction zone magmas. This geochemical stratification is consistent with seismic observations of a shallow lithosphere-asthenosphere boundary (∼55 km depth). Combined trace element and cryoscopic melting models yield self-consistent estimates for the degree of melting (∼5%) and source H2O concentration (∼1000 ppm). We suggest two possible geodynamic models to explain small-scale convection necessary for magma generation. The first is related to the Isabella seismic anomaly, either a remnant of the Farallon Plate or foundered lithosphere. The second scenario is related to slow extension of the lithosphere.
title: A Method for Separating Casein Micelles from Whey Proteins for Determining Casein in Milk
Creators: name: Carpenter, Robert N.
Publisher: name: Utah State University
Year: 1983

description: The purpose of this study was to determine if size exclusion chromatography could be used to separate casein micelles from whey proteins for a rapid, direct test to measure percent casein in milk. A size exclusion chromatography column was developed for the separation having dimensions 100 by .4 cm. Packing material selected was glycophase coated porous glass supports. A Beckman DU-8B spectrophotometer monitored the casein and whey protein peaks as they eluted and a Tektronix 4052 computer accepted data points every 4 sec, storing these on tape. Absorbances and areas of each peak were used in the evaluation of samples. Treatments of temperature, pH and calcium addition were performed on a commingled milk sample from Utah State University Dairy Laboratory. It was determined that addition of calcium and pre-warming to 40 C before injection is important for good separation. Several samples of milk from individual cows were run through the column and parameters obtained. For each sample, percent casein was measured using the standard method of acid precipitation and Kjeldahl nitrogen determination. Percent casein was then estimated using area and absorbance of each casein peak from the elution plots of milk from individual cows. A regression line of predicted vs actual percent casein resulted in a correlation coefficient (r) of .92.
title: Vitamin A Status, Anthropometric Measurements, and Food Practices of Women of Childbearing Age and Their Preschool Children in Northeast Brazil
Creators: name: Henderson, Susan Ahlstrom
Publisher: name: Utah State University
Year: 1987

description: Vitamin A nutrition status was evaluated in 110 pairs of women and their preschool children at rural health posts in two different ecological regions of Northeast Brazil. Serum retinol and carotene, weight, height, tricep skinfold and mid-arm circumference were measured from each mother and child. Nutrition knowledge of mothers, socioeconomic living conditions and consumption of retinol and carotene food sources were assessed.
Nine children (8 percent) and one mother had less than acceptable serum retinol (less than 20 μg/dl). Additionally, 21 percent of the children and six percent of the mothers had "low" serum carotene levels. Thirty-seven percent and 57 percent of the children were at or below the tenth percentile for height and weight, respectively, when compared to Brazilian standard tables, and 30 percent were below the tenth percentile of weight for height. When compared to NCHS standard tables, 34 percent were below the tenth percentile for weight/height. Nutrition knowledge was very limited, but opportunities for nutrition education are great as mothers wanted more nutrition and feeding information. Squash, carrots and mangoes were more common sources of vitamin A than were animal sources.
Multiple regression models indicated statistical significance among mothers' serum retinol, survey site, and mothers' weight/height percentile and among mothers' vitamin A intake, survey site, and mothers' ages. The data indicate that vitamin A nutrition status is suboptimal in Northeast Brazil, but appropriate food sources exist. Long-term intervention projects need to focus on increasing the production, distribution, and consumption of preformed vitamin A- and carotene-rich foods.
Capabilities of the Lamont–Doherty Earth Observatory in situ¹⁴C extraction laboratory updated
Creators: name: Goehring, Brent M.
name: Schimmelpfennig, Irene Lois
name: Schaefer, Joerg M.
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Geochemistry

description: We report on the status and capabilities of the Lamont–Doherty Earth Observatory in situ¹⁴C extraction laboratory. In late 2006 we began, in collaboration with the AMS group at the University of Arizona, construction of a new laboratory to extract in situ cosmogenic ¹⁴C from terrestrial silicates. Long-term measurements of the process blank over the last two years give an arithmetic mean and standard deviation of 125 ± 43 × 10³ atoms ¹⁴C (n = 9) and show significant improvement in the number of atoms, as well as stability compared to initial measurements of the process blank. We report long-term measurements of the intercomparison material CRONUS-A, which has been developed as part of the CRONUS-Earth effort to characterize inter- and intra-laboratory variability. We interpret the standard deviation (5%) of six replicate measurements of CRONUS-A as the reproducibility of in situ¹⁴C extractions in our laboratory.
Water Shortages, Development, and Drought in Rockland County, New York
Creators: name: Lyon, Bradfield
name: Christie-Blick, Nicholas
name: Gluzberg, Yekaterina
Publisher: name: Columbia University
Year: 2005
Subjects: Climatic changes
Water resources development--Management
Meteorology
Land use--Planning

description: Knowledge of the historical variability of regional climate is an essential element of successful water resource planning. Lacking such perspective, planners and managers can be deceived as to the severity of a recent climate extreme, such as drought, and place a disproportionate blame on the climate, not the integrity of the supply system should water restrictions become necessary to avoid shortages. Presented here is a vivid example of how development, a lack of adequate planning, and climate variability have converged to produce three water emergencies in Rockland County, New York, since 1995. An examination of climate data over the past century indicates that the severity of the recent droughts was well within the range of past variability. Rather than climate alone, the recent water emergencies have highlighted a significant mismatch between supply and demand that has been developing in Rockland County over the past three decades. Substantial development, largely in the form of single-family homes, has not been matched with a corresponding enhancement of the county's water system. Realistic plans for meeting current water demand will require cooperation among all stakeholders, beginning with an acknowledgement that climate variations are inevitable, not the sole source of blame when water shortages arise.
title: Propagating Perfection: Eugenic Sterilization at the Utah State Training School, 1935 - 1974
Creators: name: Rust, Jennifer
Publisher: name: Utah State University
Year: 2017

description: Compulsory sterilization as a tool of eugenics occurred in the United States from before the U.S. Supreme Court upheld its’ constitutionality in 1927 until the early 1970s. Initial justification for removing a person’s ability to procreate was rooted in hereditarian assertions that disability was transmitted from parent to offspring, and incorporated an economic argument that individuals with disabilities placed a financial burden on the state for care. Due to scientific deconstruction of the hereditarian argument, rationalization for sterilization evolved into an anxiety over the perceived inability of the disabled to parent. The state of Utah sterilized 738 individuals with intellectual disabilities from 1935 to 1974. This paper explores how Utah was similar to other states in terms of implementing compulsory sterilization through the establishment of the Utah State Training School and the philosophy of its leadership team.
The Universe in a Soap Film
Creators: name: Katti, Rohit
name: Samuel, Joseph
name: Sinha, Supurna
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The value of the cosmological constant is one of the major puzzles of modern cosmology: it is tiny but nonzero. Sorkin predicted, from the Causet approach to quantum gravity, that the cosmological constant has quantum fluctuations. The predicted order of magnitude of the fluctuations agrees with the subsequently observed value of the cosmological constant. We had earlier developed an analogy between the cosmological constant of the Universe and the surface tension of fluid membranes. Here we demonstrate by computer simulations that the surface tension of a fluid membrane has statistical fluctuations stemming from its discrete molecular structure. Our analogy enables us to view these numerical experiments as probing a small and fluctuating cosmological constant. Deriving insights from our analogy, we show that a fluctuating cosmological constant is a GENERIC feature of quantum gravity models and is far more general than the specific context in which it was originally proposed. We pursue and refine the idea of a fluctuating cosmological constant and work towards making further testable predictions.
description: 27 pages, three figures (best viewed in soft copy), two tables, updated references
title: Attitudes and Experiences of Close Interethnic Friendships Among Native Emerging Adults: A Mixed-Methods Investigation
Creators: name: Jones, Merrill L.
Publisher: name: Utah State University
Year: 2017

description: This study included 114 Native adults and 6 Native/non-Native pairs of friends (age 18-25). Experiences and attitudes for close interethnic friendships were investigated. Friendship patterns and predictors were quantitatively assessed for the 114 Natives, with qualitative examination of the development and qualities of the six friend pairs.
Results of quantitative analysis revealed that 80% of this sample reported friendship investment with Whites, and 55% reported friendship investment with same-tribe members. Over 90% of participants were open to engaging in friendships with member of any ethnicity or race. Approximately 98% of participants reported being targeted for racial discrimination, with most reporting some distress, often at a low level. Significant positive correlates of past and future friendships with Whites included: household income in childhood, identification with White culture, racial/ethnic composition of students in college, multicultural experiences, and past support from parents. Multiple regressions included as significant predictors of past friendships: past parental support (t = 6.488, p < .001), past multicultural experiences (t = 3.852, p < .001), racial composition in college (t = 3.083, p = .003), and diversity climate in high school (t = 2.468, p = .015). Multiple regressions for future friendships with Whites revealed as significant predictors: past friendships (t = 5.187, p < .001), and past parental support (t = 2.507, p = .014).
Qualitative findings revealed authenticity/acceptance, communication, similarity, and trust as aspects of close friendships with non-Natives. Opportunities to share cultural teachings, and shared cultural interests helped friendships develop. Participants’ descriptions of their friendships largely coincided with contact/opportunity theories, with propinquity allowing homophily, reciprocation, and disclosure to develop within the friendship. All friendship pairs weathered periods of time during which contact between friends became infrequent, but all participants asserted that they were still close friends during those periods. Findings illuminate the prominence of interethnic friendships in the lives of Native youth, and positive intergroup attitudes expressed within those relationships.
Heisenberg double H(B^*) as a braided commutative Yetter-Drinfeld module algebra over the Drinfeld double
Creators: name: Semikhatov, AM
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16W30, 57T05, 16S40, 81T40

description: We study the Yetter--Drinfeld D(B)-module algebra structure on the Heisenberg double H(B^*) endowed with a "heterotic" action of the Drinfeld double D(B). This action can be interpreted in the spirit of Lu's description of H(B^*) as a twist of D(B). In terms of the braiding of Yetter--Drinfeld modules, H(B^*) is braided commutative. By the Brzezinski--Militaru theorem, H(B^*)#D(B) is then a Hopf algebroid over H(B^*). For B a particular Taft Hopf algebra at a 2p-th root of unity, the construction is adapted to yield Yetter--Drinfeld module algebras over the 2p^3-dimensional quantum group U_q(sl(2)). In particular, it follows that Mat_p(C) is a braided commutative Yetter--Drinfeld U_q(sl(2))-module algebra and Mat_p(U_q(sl(2))) is a Hopf algebroid over Mat_p(C).
description: 22 pages, amsart++, times. V2: minor changes; reference to an arxiv number corrected
Stratigraphic Controls on a Salt-Withdrawal Intraslope Minibasin, North-Central Green Canyon, Gulf of Mexico: Implications for Misinterpreting Sea Level Change
Creators: name: Madof, Andrew S.
name: Christie-Blick, Nicholas
name: Anders, Mark H.
Publisher: name: Columbia University
Year: 2009
Subjects: Petroleum--Geology
Submarine geology
Geology, Stratigraphic

description: Three-dimensional seismic data from the Fuji basin, a salt-controlled intraslope minibasin in north-central Green Canyon, Gulf of Mexico, reveal complex interactions between gravity- and suspension-driven sedimentation. Seismic volumes for late Pleistocene (sim470 ka) to Holocene fill within the Fuji basin consist of approximately 45% mass transport complexes (MTCs), 5% channelized sandy turbidites, and 50% hemipelagites and muddy turbidites. At least ten MTCs within the Fuji basin flowed radially toward its depocenter, either from basin flanks (i.e., intrabasinal) or as a result of larger-scale salt motion (i.e., extrabasinal). Sediment transport directions are inferred on the basis of elongate basal incisions and smaller-scale scours, head scarps, fold orientation within the complexes, and stratigraphic thinning trends at downdip margins. An amalgamated set of three channelized sandy turbidite complexes less than 350 m (1148 ft) thick and 3 km (1.8 mi) across represents the main sand delivery pathway into the Fuji basin. These deposits are thought to be due to shelf bypass, and possibly, to proximity to the Pleistocene shoreline. Hemipelagites and muddy turbidites are homogeneous, and their thickness is relatively consistent at basin scale. This facies represents background sedimentation. A process-driven model has been developed involving halokinetic autocyclicity as the primary control on sedimentation in the Fuji basin. Passive salt motion accounts better for both the directions of sediment transport and the frequency of late Pleistocene–Holocene MTCs than currently popular eustatic and steady-state bathymetric models. The conclusion is significant in casting doubt on the generally assumed importance of eustasy in controlling off-shelf lowstand sedimentation and in implying marked variations in stratigraphic details at length scales of less than 10 km (6.2 mi).
On the Utility of Anonymized Flow Traces for Anomaly Detection
Creators: name: Burkhart, Martin
name: Brauckhoff, Daniela
name: May, Martin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The sharing of network traces is an important prerequisite for the development and evaluation of efficient anomaly detection mechanisms. Unfortunately, privacy concerns and data protection laws prevent network operators from sharing these data. Anonymization is a promising solution in this context; however, it is unclear if the sanitization of data preserves the traffic characteristics or introduces artifacts that may falsify traffic analysis results. In this paper, we examine the utility of anonymized flow traces for anomaly detection. We quantitatively evaluate the impact of IP address anonymization, namely variations of permutation and truncation, on the detectability of large-scale anomalies. Specifically, we analyze three weeks of un-sampled and non-anonymized network traces from a medium-sized backbone network. We find that all anonymization techniques, except prefix-preserving permutation, degrade the utility of data for anomaly detection. We show that the degree of degradation depends to a large extent on the nature and mix of anomalies present in a trace. Moreover, we present a case study that illustrates how traffic characteristics of individual hosts are distorted by anonymization.
Model quakes in the two-dimensional wave equation
Creators: name: Shaw, Bruce E.
Publisher: name: Columbia University
Year: 1997
Subjects: Plate tectonics
Geomorphology

description: This paper presents a new two-dimensional wave equation model of an earthquake fault. The model generates a complex sequence of slip events on a fault with uniform properties when there is a frictional weakening instability. Previous models of long faults in one and two dimensions had the driving in the bulk, giving the Klein-Gordon equation in the bulk. Here, I place the driving on the boundary; giving the wave equation in the bulk. The different models are, however, shown to behave similarly. I examine a whole range of frictions, with slip weakening as one end-member case and velocity weakening as the other end-member case, and show that they display a generic type of slip complexity: there is an exponential distribution of the largest events and, for sufficient weakening, a power law distribution of small events. With the addition of a viscous-type friction term on the fault, I show that the results are independent of grid resolution, indicating that continuum limit complexity is achieved.
title: The Effect of Long Term Storage of Nonfat Dry Milk On Sensory Quality and on the Development Of Oxidative Derivatives of Sterols
Creators: name: Driscoll, Nancy R.
Publisher: name: Utah State University
Year: 1983

description: Nonfat dry milk (NOM) was evaluated to determine the effect of long term storage on its sensory quality, its solubility index and on the development of oxidative derivatives of sterols. Storage variables included the form of the milk, the atmosphere in the storage container, the type of package and the storage temperature. A trained taste panel evaluated the milk for the development of cooked, metallic, and oxidized/stale flavors, mouthfeel and overall acceptability. Gas chromatography was used to determine cholesterol content and the quantity of oxidative derivatives of cholesterol present in the samples.
Although long term storage of NOM did not affect the solubility index of the milk, the sensory quality of the milk was affected. Over time storage temperature and type of package had the greatest effect on sensory quality. Milk stored for 30 months at 32 C developed an unacceptable oxidized/stale flavor and at 42 months of storage, milk stored in polybags at 21 C had also developed an oxidized/stale flavor. These results substantiate the importance of controlling storage conditions during long term storage of NOM.
NOM stored for four years did not develop harmful quantities of oxidative derivatives of cholesterol. However, certain expected results did occur. NOM stored in polybags developed more oxidative derivatives than samples stored in cans. Samples stored at 32 C developed more oxidative derivatives of cholesterol than any other sample analyzed and 7S-hydroxycholesterol, the only known cytotoxic derivative of cholesterol identified, was present in the samples stored at 32 C. Fresh and control samples of NOM contained similar quantities of oxidative derivatives of cholesterol.
Conductance properties of rough quantum wires with colored surface disorder
Creators: name: Akguc, Gursoy B.
name: Gong, Jiangbin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Effects of correlated disorder on wave localization have attracted considerable interest. Motivated by the importance of studies of quantum transport in rough nanowires, here we examine how colored surface roughness impacts the conductance of two-dimensional quantum waveguides, using direct scattering calculations based on the reaction matrix approach. The computational results are analyzed in connection with a theoretical relation between the localization length and the structure factor of correlated disorder. We also examine and discuss several cases that have not been treated theoretically or are beyond the validity regime of available theories. Results indicate that conductance properties of quantum wires are controllable via colored surface disorder.
description: 19 pages, 7 figures
HILCC: A Hierarchical Interface to Library of Congress Classification : a project report on the development of an operational prototype LCC-based subject interface.
Creators: name: Davis, Stephen P.
Publisher: name: Columbia University
Year: 2002
Subjects: Library science
Information science

description: This paper describes a project, undertaken by Columbia University Libraries in 1997, to develop a system for the automatic generation of browsable, web-based, subject-oriented presentations of our electronic resources by mapping LC classification numbers present in catalog records to a hierarchical subject vocabulary derived from the Library of Congress classification schedules.
Spatiotemporal dimensionality and Time-Space characterization of multitemporal imagery
Creators: name: Small, Christopher
Publisher: name: Columbia University
Year: 2012
Subjects: Remote sensing

description: Spatiotemporal dimensionality refers to the continuum of spatial and temporal patterns in an image time series. Time-Space characterization refers to a way of representing this continuum of patterns as combinations of spatial and temporal constituents — with a minimum of assumptions about the forms of the patterns. Patterns can be related to processes through modeling. By combining characterization and modeling, two complementary analytical tools can be used together so that each resolves a key limitation of the other. This study describes a straightforward extension of Principal Component Analysis and Spectral Mixture Analysis to multitemporal imagery and illustrates how characterization of the dimensionality and eigenstructure of the data can inform modeling of the processes represented in the data. The relationships among spatiotemporal processes can be represented as combinations of temporal endmembers in a temporal feature space where the dimensions represent different components of the temporal patterns present in the data. The topology of the feature space and the processes being modeled together inform the selection of temporal endmembers and the structure of the model chosen to represent the processes. The dimensionality revealed by the characterization can also provide a partial solution to the problem of endmember variability. The characterization and modeling process is illustrated with the vegetation phenology of the Ganges–Brahmaputra delta using a MODIS vegetation index time series. Additional applications and limitations of Time-Space characterization and mixture modeling are further illustrated by comparing the eigenstructures and temporal feature spaces of Landsat vegetation fraction and DMSP-OLS night light time series.
title: Factors Affecting Growth of Proteinase Positive and Proteinase Negative Streptococcus cremoris UC310 in Ultrafiltered Milk Retentate
Creators: name: Pope, Brent Karl
Publisher: name: Utah State University
Year: 1987

description: Whole milks were adjusted to pH 5.8, 6.2, or 6. 7 with HCl and batch pasteurized at 63°C for 30 min. Each was concentrated 5:1 (40% total solids) through a single tube polysulfone membrane Abcor ultrafiltration unit. Lactose (L), casein hydrolysate (CH), and one of two brands of yeast extract (YE1, YE2) were added into cooled retentates at 0.1, 0.3, 0.5, 0. 7 or 0.9% and equilibrated overnight at 4°C. Five percent proteinase positive (Prt+) Streptococcus cremoris UC 310+ (v/w) milk based culture was added. Unfortified retentate was also inoculated with 0.1, 0.3, 0.5, 0. 7 or 0.9% starter and pH readings were taken on all samples for 24 h during incubation at 23°C. Similar substrates were inoculated with proteinase negative (Prt-) S. cremoris UC 310-.
Lactose had no significant effect on acid production. Casein hydrolysate had a slight positive effect. Yeast extract had a significant effect at all preacidification levels and a significant difference was also noticed between the brands. Mean times required for the proteinase positive culture to reach pH 5.1 in 5x retentate from milk acidified to pH 5.8 were 24, 12, 10, 10, and 24 h for L, CH, YE1, YE2, and the control respectively. Proteinase negative variants of this strain had mean times of >24 h, 14 h, 11 h, 11 h, and >24 h respectively. These time differences were significantly different between Prt+ and Prt- variants. A minimum concentration of 0.2% yeast extract produced the most stimulation while greater quantities provided no additional benefit. Taste panelists were unable to detect yeast extract in retentates fermented by either culture variant.
Megascolecidae Rosa 1891
Creators: name: Demetrio, Wilian C.
name: Santos, Alessandra
name: Ferreira, Talita
name: Nadolny, Herlon
name: Cardoso, Guilherme B. X.
name: Torres, Julia L. M.
name: Dudas, Rafaela
name: Oliveira, Viviane De
name: Barreto, Julia O.
name: James, Samuel W.
name: Silva, Elodie Da
name: Brown, George G.
name: Bartz, Marie L. C.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Clitellata
Haplotaxida
Megascolecidae

description: Megascolecidae juveniles
COFMBRPR0917, 2 individuals, topsoil (0–20 cm) of grass lawn in Private Reserve of Natural Heritage of Mata do Uru, Lapa—PR (25°48'32.87''S 49°41'09.42''W); February, 2015; S.A. Ferreira, C.H. Gamboa, A. Santos, E.M.H. Santos, L.R.Barbosa, G.P. Morais, J. Romaniw, T.M. Inagaki, H.S. Almeida, M.G. Rosa, D.C. Ortiz, E. Silva, P. Lavelle, E. Velásquez, G.G. Brown, M.L.C. Bartz, colls. COFMBRPR0918, 7 individuals, topsoil (0–20 cm) of grass lawn in Private Reserve of Natural Heritage of Mata do Uru, Lapa—PR (25°48'32.87''S 49°41'09.42''W); November, 2015; A. Santos, M.L.C. Bartz, J.L.M. Torres, T. Gorte, colls. COFMBRPR0919, 2 individuals, topsoil (0–20 cm) of annual crop in Lapa—PR (25°49'06.10''S 49°41'23.70''W); February, 2015; S.A. Ferreira, C.H. Gamboa, A. Santos, E.M.H. Santos, L.R.Barbosa, G.P. Morais, J. Romaniw, T.M. Inagaki, H.S. Almeida, M.G. Rosa, D.C. Ortiz, E. Silva, P. Lavelle, E. Velásquez, G.G. Brown, M.L.C. Bartz, colls. COFMBRPR0920, 3 individuals, topsoil (0–20 cm) of annual crop in Lapa—PR (25°49'06.10''S 49°41'23.70''W); November, 2015; A. Santos, M.L.C. Bartz, J.L.M. Torres, T. Gorte, colls. COFMBRPR0946, 1 individual, topsoil (0–20 cm) of annual crop in Lapa—PR (25°49'06.10''S 49°41'23.70''W); March, 2015; T.A.C. Silva, A. Bussinguer, E. Silva, H. Nadolny, A. Domínguez, B. Santos, C. Masin, C. Tonetti, D. Mesquita, E. Rocha, E. Esteves, G. Filho, J.O. Barreto, J.L.M. Torres, L. Duarte, M. Rionda, M. Lima, N.N. Oliveira, R.A.G. Oliveira, T. Gorte, S.W. James, M.L.C. Bartz, G.G. Brown, colls. COFMBRPR0947, 1 individual, topsoil (0–20 cm) of annual crop in Lapa—PR (25°49'06.10''S 49°41'23.70''W); July, 2016; E. Silva, R. Dudas, V. Oliveira, R.F. Segalla, A. Santos, H. Nadolny, W.C. Demetrio, L.F.N. Cunha, G.G. Brown, M.L.C. Bartz, A. Tavares, M. Smokanit, K. Alves, T. Ferreira, colls.
description: Published as part of Demetrio, Wilian C., Santos, Alessandra, Ferreira, Talita, Nadolny, Herlon, Cardoso, Guilherme B. X., Torres, Julia L. M., Dudas, Rafaela, Oliveira, Viviane De, Barreto, Julia O., James, Samuel W., Silva, Elodie Da, Brown, George G. & Bartz, Marie L. C., 2018, Earthworm species in various land use systems in the Campos Gerais region of Lapa, Paraná, Brazil, pp. 503-516 in Zootaxa 4496 (1) on page 510, DOI: 10.11646/zootaxa.4496.1.39, http://zenodo.org/record/1447007
A CO J=1-0 Survey of common optical/uv absorption sightlines
Creators: name: Liszt, H. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context: Over the past thirty years a wealth of observations of CO and other molecules in optical/uv absorption in diffuse clouds has accumulated for which no comparable CO emission line data exist. Aims: To acquire mm-wave J=1-0 CO emission line profiles toward a substantial sample of commonly-studied optical/uv absorption line targets and to compare with the properties of the absorbing gas, especially the predicted emission line strengths. Methods: Using the ARO 12m telescope we observed mm-wavelength J=1-0 CO emission with spectral resolution R ~ 3x10^6 and spatial resolution 1' toward a sample of 110 lines of sight previously studied in optical/uv absorption lines of CO, \HH, CH, etc. Results: Interstellar CO emission was detected along 65 of the 110 lines of sight surveyed and there is a general superabundance of CO emission given the distribution of galactic latitudes in the survey sample. Much of the emission is optically thick or very intense and must emanate from dark clouds or warm dense gas near HII regions. Conclusions: Judging from the statistical superabundance of CO emission, seen also in the total line of sight reddening, the OB star optical/uv absorption line targets must be physically associated with the large quantities of neutral gas whose CO emission was detected, in which case they are probably influencing the absorbing gas by heating and/or photoionizing it. This explains why CO/H2 and 12CO/13CO ratios differ somewhat between $uv$ and mm-wave absorption line studies. Because the lines of sight have been preselected to have AV < 1 mag, relatively little of the associated material actually occults the targets, making it difficult for CO emission line observations to isolate the foreground gas contribution.