cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Actual versus counterfactual fitness consequences of dispersal decisions in a cooperative breeder
Creators: name: Ostreiher, Roni
name: Mundry, Roger
name: Heifetz, Aviad
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Evolutionary Biology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Developmental Biology
subject: Cancer
classificationCode: 111714
subject: Mental Health

description: In many species, dispersal from the natal group is crucial for reproduction. However, venturing into a new territory and integrating into a novel social environment is associated with risks and costs. In cooperatively breeding species, moreover, an individual’s prospects of future reproduction upon dispersal or upon remaining in the natal group might crucially depend on other group members’ concurrent decisions to disperse or to stay. We developed a methodology for evaluating how the actual decision of a potential disperser to join or not to join a dispersing individual or coalition affects its fitness in comparison with the fitness consequences it would have had if it had taken the reverse decision – to disperse instead of staying, or to stay instead of dispersing. We then examined 64 dispersal events by unisex coalitions of Arabian babblers who could not breed in their group of origin, and aimed to acquire breeding opportunities by joining another group. For each such dispersal event, we compared the fitness consequences for the members of the dispersing coalition as well as for their same-sex siblings who stayed, to the counterfactual consequences of taking the reverse decision for each of them in turn. Fitness consequences were assessed based on breeding success in the ensuing year as the leading criterion, and on social rank as a secondary criterion. We found that 69% of the dispersers and 38% of the individuals who stayed made fitness-enhancing decisions relative to the alternative they faced, and for an additional 10% of dispersers and 21% of those who stayed, their choice yielded fitness consequences on par with those of the alternative choice. These findings suggest that despite the risky and uncertain circumstances in which dispersal decisions are taken, most individuals make informed, fitness-enhancing dispersal choices, taking into account the concurrent choices of their groupmates.
Fiscal Policy Switching in Japan, the U.S., and the U.K.
Creators: name: Ito, Arata
name: Watanabe, Tsutomu
name: Yabu, Tomoyoshi
Publisher: name: Columbia University
Year: 2011
Subjects: Economics
Finance

description: This paper estimates fiscal policy feedback rules in Japan, the United States, and the United Kingdom for more than a century, allowing for stochastic regime changes. Estimating a Markov-switching model by the Bayesian method, we find the following: First, the Japanese data clearly reject the view that the fiscal policy regime is fixed, i.e., that the Japanese government adopted a Ricardian or a non-Ricardian regime throughout the entire period. Instead, our results indicate a stochastic switch of the debt-GDP ratio between stationary and nonstationary processes, and thus a stochastic switch between Ricardian and non-Ricardian regimes. Second, our simulation exercises using the estimated parameters and transition probabilities do not necessarily reject the possibility that the debt-GDP ratio may be nonstationary even in the long run (i.e., globally nonstationary). Third, the Japanese result is in sharp contrast with the results for the U.S. and the U.K. which indicate that in these countries the government's fiscal behavior is consistently characterized by Ricardian policy.
Stochastically driven single level quantum dot: a nano-scale finite-time thermodynamic machine and its various operational modes
Creators: name: Esposito, Massimiliano
name: Kumar, Niraj
name: Lindenberg, Katja
name: Broeck, Christian Van den
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We describe a single-level quantum dot in contact with two leads as a nanoscale finite-time thermodynamic machine. The dot is driven by an external stochastic force that switches its energy between two values. In the isothermal regime, it can operate as a rechargeable battery by generating an electric current against the applied bias in response to the stochastic driving, and re-delivering work in the reverse cycle. This behavior is reminiscent of the Parrondo paradox. If there is a thermal gradient the device can function as a work-generating thermal engine, or as a refrigerator that extracts heat from the cold reservoir via the work input of the stochastic driving. The efficiency of the machine at maximum power output is investigated for each mode of operation, and universal features are identified.
description: 4 pages, 3 figures, V2: typos corrected around eq.(12)
Continuous maximal regularity and analytic semigroups
Creators: name: LeCrone, Jeremy
name: Simonett, Gieri
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper we establish a result regarding the connection between continuous maximal regularity and generation of analytic semigroups on a pair of densely embedded Banach spaces. More precisely, we show that continuous maximal regularity for a closed operator $A: E_1 \rightarrow E_0$ implies that $A$ generates a strongly continuous analytic semigroup on $E_0$ with domain equal $E_1$.
description: 8 pages, To appear in Dynamical Systems and Differential Equations, DCDS Supplement 2011: Proceedings of the 8th AIMS International Conference (Dresden, Germany)
New transfusion dataset a first step in nationally streamlined blood use
Creators: name: Marks, Kirsten
Publisher: name: Monash University
Year: 2023
Subjects: classificationCode: 420310
subject: Health surveillance
classificationCode: 420308
subject: Health informatics and information systems
classificationCode: 420299
subject: Epidemiology not elsewhere classified
classificationCode: 420699
subject: Public health not elsewhere classified

description: The Transfusion Research Unit have been busy expanding the Aus & NZ Massive Transfusion Registry into a database that tracks usage of donated blood units across all transfusion episodes nationally, massive and small alike. The expansion follows a grant from the Australian Research Data Commons, and will inform best practice and policy around use of this most precious of medical resources.
Accelerating Service Discovery in Ad-Hoc Zero Configuration Networking
Creators: name: Hong, Se Gi
name: Srinivasan, Suman Ramkumar
name: Schulzrinne, Henning G.
Publisher: name: Columbia University
Year: 2007
Subjects: Computer science

description: Zero Configuration Networking (Zeroconf) assigns IP addresses and host names, and discovers service without a central server. Zeroconf can be used in wireless mobile ad-hoc networks which are based on IEEE 802.11 and IP. However, Zeroconf has problems in mobile ad-hoc networks as it cannot detect changes in the network topology. In highly mobile networks, Zeroconf causes network overhead while discovering new services. In this paper, we propose an algorithm to accelerate service discovery for mobile ad-hoc networks. Our algorithm involves the monitoring of network interface changes that occur when a device with IEEE 802.11 enabled joins a new network area. This algorithm allows users to discover network topology changes and new services in real-time while minimizing network overhead.
Software Model Checking with Explicit Scheduler and Symbolic Threads
Creators: name: Cimatti, Alessandro
name: Narasamdya, Iman
name: Roveri, Marco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: D.2.4

description: In many practical application domains, the software is organized into a set of threads, whose activation is exclusive and controlled by a cooperative scheduling policy: threads execute, without any interruption, until they either terminate or yield the control explicitly to the scheduler. The formal verification of such software poses significant challenges. On the one side, each thread may have infinite state space, and might call for abstraction. On the other side, the scheduling policy is often important for correctness, and an approach based on abstracting the scheduler may result in loss of precision and false positives. Unfortunately, the translation of the problem into a purely sequential software model checking problem turns out to be highly inefficient for the available technologies. We propose a software model checking technique that exploits the intrinsic structure of these programs. Each thread is translated into a separate sequential program and explored symbolically with lazy abstraction, while the overall verification is orchestrated by the direct execution of the scheduler. The approach is optimized by filtering the exploration of the scheduler with the integration of partial-order reduction. The technique, called ESST (Explicit Scheduler, Symbolic Threads) has been implemented and experimentally evaluated on a significant set of benchmarks. The results demonstrate that ESST technique is way more effective than software model checking applied to the sequentialized programs, and that partial-order reduction can lead to further performance improvements.
description: 40 pages, 10 figures, accepted for publication in journal of logical methods in computer science
Broken treaties: Indian treaty implementation in Canada and the United States, 1868-1885
Creators: name: St. Germain, Jill
Publisher: name: University of Calgary
Year: 2005

description: Bibliography: p. 637-662
description: "Broken Treaties" offers a comparative assessment of Indian treaty implementation focusing on the U.S.-Lakota Treaty of 1868 and Treaty Six (1876) between Canada and the Plains Cree, through 1885. The thesis is that the label of "broken treaties," imposed by nineteenth-century observers and perpetuated in the historical literature, has obscured the implementation experience of both Aboriginal and non-Aboriginal participants and distorted understanding of the relationships between them. This has led to the erasure of the viable relationship through which the United States and the Lakota effectively mediated the cultural divide between them in the period 1868-1875, and stifled appreciation for the broader context of U.S. politics that undermined a treaty solution to the Black Hills crisis of 1876. In Canada, the "broken treaties" tradition has obscured the fact that Canada and the Plains Cree held different understandings of the treaty - contract versus covenant - and that failure to appreciate each other's position fostered the friction exposed in the events and aftermath of the 1885 Rebellion.
Entropy, Randomization, Derandomization, and Discrepancy
Creators: name: Gnewuch, Michael
Publisher: name: Columbia University
Year: 2011
Subjects: Computer science

description: The star discrepancy is a measure of how uniformly distributed a finite point set is in the d-dimensional unit cube. It is related to high-dimensional numerical integration of certain function classes as expressed by the Koksma-Hlawka inequality. A sharp version of this inequality states that the worst-case error of approximating the integral of functions from the unit ball of some Sobolev space by an equal-weight cubature is exactly the star discrepancy of the set of sample points. In many applications, as, e.g., in physics, quantum chemistry or finance, it is essential to approximate high-dimensional integrals. Thus with regard to the Koksma- Hlawka inequality the following three questions are very important: (i) What are good bounds with explicitly given dependence on the dimension d for the smallest possible discrepancy of any n-point set for moderate n? (ii) How can we construct point sets efficiently that satisfy such bounds? (iii) How can we calculate the discrepancy of given point sets efficiently? We want to discuss these questions and survey and explain some approaches to tackle them relying on metric entropy, randomization, and derandomization.
Gender Needs Assessment for Kumasi, Ghana
Creators: name: Nimura, Ayuko
name: Eisen, Shulie
Publisher: name: Columbia University
Year: 2010
Subjects: Women--Economic conditions
Women--Social conditions
Women's rights
Africans
Regional planning

description: In September 2000, Ghana was one of 189 signatories to adopt the United Nations Millennium Declaration on the Millennium Development Goals (MDGs). This gender needs assessment focuses on the Millennium Development Goal of gender equality and women‟s empowerment (MDG 3), and whether Kumasi, Ghana‟s second largest city, can achieve both objectives by 2015. MDG 3 specifically seeks to eliminate gender inequality at all levels of education by 2015, but gender equality and women‟s empowerment entail much more. They require equality of economic opportunity, equitable representation in political bodies, access to reproductive rights and freedom from gender-based violence.
Interaction effects in pairwise ordering model
Creators: name: Wang, Chunyan
name: Lin, Dennis K. J.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Plant Biology
subject: Computational Biology

description: In an order-of-addition (OofA) experiment, the response is a function of the addition order of components. The key objective of the OofA experiments is to find the optimal order of addition. The most popularly used model for OofA experiments is perhaps the pairwise ordering (PWO) model, which assumes that the response can be fully accounted by the pairwise ordering of components. Recently, the PWO model has been extended by adding the interactions of PWO factors, to account for variations caused by the ordering of sets of three or more components, where the interaction term is defined by the multiplication of two PWO factors. This paper introduces a novel class of conditional PWO effect to study the interaction effect between PWO factors. The advantages of the proposed interaction terms are studied. Based on these conditional effects, a new model is proposed. The optimal order of addition can be straightforwardly obtained via the proposed model.
Unprepared Indestructibility
Creators: name: Brooke-Taylor, Andrew
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E55, 03E35

description: This article is based on the talk of the same name which I gave at the "Aspects of Descriptive Set Theory" RIMS Symposium in Kyoto in October 2011; it is essentially just a survey of my article "Indestructibility of Vopenka's Principle". In particular, I present (with a sketch of the proof) a forcing indestructibility theorem for the large cardinal axiom Vopenka's Principle. It is notable in that there is no preparatory forcing required to make the axiom indestructible, unlike other indestructibility results.
description: 7 pages. Survey of arXiv:1003.4707. To appear in Proceedings of the RIMS Symposium on Aspects of Descriptive Set Theory, 2011, RIMS Ko-kyu-roku series
Compositions
Creators: name: Padgett, Eileen Victoria
Publisher: name: University of British Columbia
Year: 2011

description: This thesis consists of nine original compositions, which were performed on January 2, 2010; March 22,10; April 20, 2010; July 07, 2010; November 22, 2010 and April 02, 2011. The total duration of the works is approximately 55 minutes. The compositions are: Eyes Closed Waltz After Dark Three Scenes Before Waking Light in the Dusk Echoes in Silver Quiet Woods Beneath an Evening Sky Fanfare Nursery Tales Effortlessly
Secret Ninja Testing with HALO Software Engineering
Creators: name: Bell, Jonathan Schaffer
name: Sheth, Swapneel Kalpesh
name: Kaiser, Gail E.
Publisher: name: Columbia University
Year: 2011
Subjects: Computer science

description: Software testing traditionally receives little attention in early computer science courses. However, we believe that if exposed to testing early, students will develop positive habits for future work. As we have found that students typically are not keen on testing, we propose an engaging and socially-oriented approach to teaching software testing in introductory and intermediate computer science courses. Our proposal leverages the power of gaming utilizing our previously described system HALO. Unlike many previous approaches, we aim to present software testing in disguise - so that students do not recognize (at first) that they are being exposed to software testing. We describe how HALO could be integrated into course assignments as well as the benefits that HALO creates.
Detecting Traffic Snooping in Anonymity Networks Using Decoys
Creators: name: Chakravarty, Sambuddho
name: Portokalidis, Georgios
name: Polychronakis, Michalis
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2011
Subjects: Computer science

description: Anonymous communication networks like Tor partially protect the confidentiality of their users' traffic by encrypting all intra-overlay communication. However, when the relayed traffic reaches the boundaries of the overlay network towards its actual destination, the original user traffic is inevitably exposed. At this point, unless end-to-end encryption is used, sensitive user data can be snooped by a malicious or compromised exit node, or by any other rogue network entity on the path towards the actual destination. We explore the use of decoy traffic for the detection of traffic interception on anonymous proxying systems. Our approach is based on the injection of traffic that exposes bait credentials for decoy services that require user authentication. Our aim is to entice prospective eavesdroppers to access decoy accounts on servers under our control using the intercepted credentials. We have deployed our prototype implementation in the Tor network using decoy IMAP and SMTP servers. During the course of six months, our system detected eight cases of traffic interception that involved eight different Tor exit nodes. We provide a detailed analysis of the detected incidents, discuss potential improvements to our system, and outline how our approach can be extended for the detection of HTTP session hijacking attacks.
New transfusion dataset a first step in nationally streamlined blood use
Creators: name: Marks, Kristen
Publisher: name: Monash University
Year: 2023
Subjects: classificationCode: 420310
subject: Health surveillance
classificationCode: 420308
subject: Health informatics and information systems
classificationCode: 420299
subject: Epidemiology not elsewhere classified
classificationCode: 420699
subject: Public health not elsewhere classified

description: The Transfusion Research Unit have been busy expanding the Aus & NZ Massive Transfusion Registry into a database that tracks usage of donated blood units across all transfusion episodes nationally, massive and small alike. The expansion follows a grant from the Australian Research Data Commons, and will inform best practice and policy around use of this most precious of medical resources.
Isometric embedding of negatively curved complete surfaces in Lorentz-Minkowski space
Creators: name: Chen, Bing-Long
name: Yin, Le
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Hilbert-Efimov theorem states that any complete surface with curvature bounded above by a negative constant can not be isometrically imbedded in $\mathbb{R}^3.$ We demonstrate that any simply-connected smooth complete surface with curvature bounded above by a negative constant admits a smooth isometric embedding into the Lorentz-Minkowski space $\mathbb{R}^{2,1}$.
description: 18 pages
Psychotherapeutic creative, concentration and contemplation meditation: examining a treatment option for clients who have dissociative identity disorder
Creators: name: Forner, Christine
Publisher: name: Social Work
Year: 2009

description: Bibliography: p. 117-130
description: Some pages are in colour
description: This thesis presents case studies of six women with DID and DDNOS who learned modified meditation techniques. Meditation has proven to be an effective treatment option for many who experience anxiety and depression. It is also known to be effective for concentration and mental clarity. It is fairly common knowledge that those who have experienced severe trauma are not able to effectively learn and utilize meditation techniques. By developing and modifying meditation techniques, such as incorporating the "window of tolerance" and using the imagination, a number of the study participants were able to consistently practice meditation. The research data, including the Dissociation Experiences Scale, a Weekly Dissociative Response Checklist (WDRC) created by the researcher, and verbal and written reports, suggest that five of the six participants experienced a lessening in dissociative experiences, increased internal awareness and increased affective control.
Combining a Baiting and a User Search Profiling Techniques for Masquerade Detection
Creators: name: Ben Salem, Malek
name: Stolfo, Salvatore
Publisher: name: Columbia University
Year: 2011
Subjects: Computer science

description: Masquerade attacks are characterized by an adversary stealing a legitimate user's credentials and using them to impersonate the victim and perform malicious activities, such as stealing information. Prior work on masquerade attack detection has focused on profiling legitimate user behavior and detecting abnormal behavior indicative of a masquerade attack. Like any anomaly-detection based techniques, detecting masquerade attacks by profiling user behavior suffers from a significant number of false positives. We extend prior work and provide a novel integrated detection approach in this paper. We combine a user behavior profiling technique with a baiting technique in order to more accurately detect masquerade activity. We show that using this integrated approach reduces the false positives by 36% when compared to user behavior profiling alone, while achieving almost perfect detection results. We also show how this combined detection approach serves as a mechanism for hardening the masquerade attack detector against mimicry attacks.
Automatic Detection of Previously-Unseen Application States for Deployment Environment Testing and Analysis
Creators: name: Murphy, Christian
name: Vaughan, Moses
name: Ilahi, Waseem
name: Kaiser, Gail E.
Publisher: name: Columbia University
Year: 2010
Subjects: Computer science

description: For large, complex software systems, it is typically impossible in terms of time and cost to reliably test the application in all possible execution states and configurations before releasing it into production. One proposed way of addressing this problem has been to continue testing and analysis of the application in the field, after it has been deployed. The theory behind this "perpetual testing" approach is that over time, defects will reveal themselves given that multiple instances of the same application may be run globally with different configurations, in different environments, under different patterns of usage, and in different system states. A practical limitation of many automated approaches to deployment environment testing and analysis is the potentially high performance overhead incurred by the necessary instrumentation. However, it may be possible to reduce this overhead by selecting test cases and performing analysis only in previously-unseen application states, thus reducing the number of redundant tests and analyses that are run. Solutions for fault detection, model checking, security testing, and fault localization in deployed software may all benefit from a technique that ignores application states that have already been tested or explored. In this paper, we apply such a technique to a testing methodology called "In Vivo Testing", which conducts tests in deployed applications, and present a solution that ensures that tests are only executed in states that the application has not previously encountered. In addition to discussing our implementation, we present the results of an empirical study that demonstrates its effectiveness, and explain how the new approach can be generalized to assist other automated testing and analysis techniques.
Testing and Validating Machine Learning Classifiers by Metamorphic Testing
Creators: name: Xie, Xiaoyuan
name: Ho, Joshua W. K.
name: Murphy, Christian
name: Kaiser, Gail E.
name: Xu, Baowen
name: Chen, Tsong Yueh
Publisher: name: Columbia University
Year: 2010
Subjects: Computer science

description: Machine Learning algorithms have provided important core functionality to support solutions in many scientific computing applications - such as computational biology, computational linguistics, and others. However, it is difficult to test such applications because often there is no "test oracle" to indicate what the correct output should be for arbitrary input. To help address the quality of scientific computing software, in this paper we present a technique for testing the implementations of machine learning classification algorithms on which such scientific computing software depends. Our technique is based on an approach called "metamorphic testing", which has been shown to be effective in such cases. Also presented is a case study on a real-world machine learning application framework, and a discussion of how programmers implementing machine learning algorithms can avoid the common pitfalls discovered in our study. We also conduct mutation analysis and cross-validation, which reveal that our method has very high effectiveness in killing mutants, and that observing expected cross-validation result alone is not sufficient to test for the correctness of a supervised classification program. Metamorphic testing is strongly recommended as a complementary approach. Finally we discuss how our findings can be used in other areas of computational science and engineering.
Linear response theory of interacting topological insulators
Creators: name: Culcer, Dimitrie
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Chiral surface states in topological insulators are robust against interactions, non-magnetic disorder and localization, yet topology does not yield protection in transport. This work presents a theory of interacting topological insulators in an external electric field, starting from the quantum Liouville equation for the many-body density matrix. Out of equilibrium, topological insulators acquire a current-induced spin polarization. Electron-electron interactions renormalize the non-equilibrium spin polarization and charge conductivity, and disorder in turn enhances this renormalization by a factor of two. Topological insulator phenomenology remains intact in the presence of interactions out of equilibrium, and an exact correspondence exists between the mathematical frameworks necessary for the understanding of the interacting and non-interacting problems.
description: 9 pages, 1 figure
No association of malignant B-cell non-Hodgkin lymphomas with ipsilateral SARS-CoV-2 vaccination
Creators: name: Claaß, Luise Victoria
name: Mayr, Patrick
name: Paschold, Lisa
name: Weber, Thomas
name: Terziev, Denis
name: Jehs, Bertram
name: Brill, Richard
name: Dober, Johannes
name: Märkl, Bruno
name: Wickenhauser, Claudia
name: Czapiewski, Piotr
name: Trepel, Martin
name: Claus, Rainer
name: Binder, Mascha
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 610

description: Purpose: SARS-CoV- 2 vaccines cause acute ipsilateral lymph node swelling in an important proportion of vaccines. Thus far, no malignant lymphadenopathies have been reported in temporal context to vaccination in the ipsilateral draining lymph node areas. Experimental design: Prompted by two cases with unilateral axillary lymphomas that occurred ipsilaterally to prior SARS-CoV- 2 vaccination, we systematically retrieved all B-cell non-Hodgkin lymphomas at two German University Medical Centers diagnosed before and after introduction of SARS-CoV- 2 vaccines in Germany. Available lymphoma tissue (n=19) was subjected to next-generation immunosequencing of the IGH locus. Malignant clonotypes were mined in the CoVabDab database and published data sets from 342 uninfected individuals, 55 individuals 28 days after anti-SARS- CoV- 2 vaccination and 139 individuals with acute COVID-19 together encompassing over 1 million CDR3 sequences in total. Results: Of 313 newly diagnosed cases in the two centers and observation periods, 27 unilateral manifestations in the defined deltoid draining regions were identified. The majority thereof were diffuse large B-cell lymphomas (18 of 27 cases). Eleven unilateral cases were diagnosed in the era of SARS-CoV- 2 vaccination and 16 in the control period before introduction of such vaccines. Of the 11 unilateral lymphomas that occurred during the vaccination period, ten had received a SARS-CoV- 2 vaccine prior to lymphoma diagnosis. These cases were further evaluated. While left-sided were more frequent than right-sided lymphomas (19 vs 8 cases), no statistically significant association of vaccination site and laterality of the lymphoma manifestation was found. The unilateral lymphomas showed a normal range of B-cell receptors typically found in these lymphoma subtypes with no evidence for anti-SARS- CoV- 2 sequences in the malignant clonotype. Conclusions: Together, we found no evidence that the current SARS-CoV- 2 vaccines could serve as a trigger for lymphomagenesis in the draining lymph node areas of the deltoid region used for vaccination.
Automated Social Hierarchy Detection through Email Network Analysis
Creators: name: Rowe, Ryan
name: Creamer, German
name: Hershkop, Shlomo
name: Stolfo, Salvatore
Publisher: name: Columbia University
Year: 2007
Subjects: Computer science

description: We present our work on automatically extracting social hierarchies from electronic communication data. Data mining based on user behavior can be leveraged to analyze and catalog patterns of communications between entities to rank relationships. The advantage is that the analysis can be done in an automatic fashion and can adopt itself to organizational changes over time. We illustrate the algorithms over real world data using the Enron corporation's email archive. The results show great promise when compared to the corporations work chart and judicial proceeding analyzing the major players.
New Maser Emission from Nonmetastable Ammonia in NGC 7538. II. Green Bank Telescope Observations Including Water Masers
Creators: name: Hoffman, Ian M.
name: Kim, Stella Seojin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present new maser emission from ^{14}NH_3 (9,6) in NGC 7538. Our observations include the known spectral features near v_LSR = -60 km/s and -57 km/s and several more features extending to -46 km/s. In three epochs of observation spanning two months we do not detect any variability in the ammonia masers, in contrast to the >10-fold variability observed in other ^{14}NH_3 (9,6) masers in the Galaxy over comparable timescales. We also present observations of water masers in all three epochs for which emission is observed over the velocity range -105 km/s < v_LSR < -4 km/s, including the highest velocity water emission yet observed from NGC 7538. Of the remarkable number of maser species in IRS 1, H_2O and, now, ^{14}NH_3 are the only masers known to exhibit emission outside of the velocity range -62 km/s < v_LSR < -51 km/s. However, we find no significant intensity or velocity correlations between the water emission and ammonia emission. We also present a non-detection in the most sensitive search to date toward any source for emission from the CC^{32}S and CC^{34}S molecules, indicating an age greater than \approx 10^4 yr for IRS 1-3. We discuss these findings in the context of embedded stellar cores and recent models of the region.
description: 7 pages, 4 figures, 3 tables; accepted to AJ; color figures only on arxiv; revised to include references and minor proof changes
Weighted Geometric Discrepancies and Numerical Integration on Reproducing Kernel Hilbert Spaces
Creators: name: Gnewuch, Michael
Publisher: name: Columbia University
Year: 2010
Subjects: Computer science

description: We extend the notion of L2-B-discrepancy introduced in [E. Novak, H. Wozniakowski, L2 discrepancy and multivariate integration, in: Analytic number theory. Essays in honour of Klaus Roth. W. W. L. Chen, W. T. Gowers, H. Halberstam, W. M. Schmidt, and R. C. Vaughan (Eds.), Cambridge University Press, Cambridge, 2009, 359"“388] to what we want to call weighted geometric L2-discrepancy. This extended notion allows us to consider weights to moderate the importance of different groups of variables, and additionally volume measures different from the Lebesgue measure as well as classes of test sets different from measurable subsets of Euclidean spaces. We relate the weighted geometric L2-discrepancy to numerical integration defined over weighted reproducing kernel Hilbert spaces and settle in this way an open problem posed by Novak and Wozniakowski. Furthermore, we prove an upper bound for the numerical integration error for cubature formulas that use admissible sample points. The set of admissible sample points may actually be a subset of the integration domain of measure zero. We illustrate that particularly in infinite dimensional numerical integration it is crucial to distinguish between the whole integration domain and the set of those sample points that actually can be used by algorithms.
Re-imagining the archipelago : the nation in post-Suharto Indonesian women's fiction
Creators: name: Budiman, Manneke
Publisher: name: University of British Columbia
Year: 2011

description: This study sets out to investigate the ways in which some fiction by Indonesian women authors produced since the downfall of President Suharto in 1998 explores the notion of ‘nation’ that was established by the New Order during its thirty-two-year rule, and offers alternative perspectives. The New Order’s ideology of the unitary state of Indonesia required, as its foremost prerequisite, the construction of a sense of Indonesianness that was neither fragmented nor centrifugal. The result, however, was not only a Java-centric perspective of a vast archipelago that consists of more than 13,000 islands, but even more narrowly, a Jakarta-centric envisioning of the entire nation. In 1998 the Reformasi started and these women authors, who are situated at the intersection of authoritarianism and democracy, attempted to redefine the nation from diverse perspectives as women, while at the same time struggling against the pull to reinscribe the New Order’s discourse of a monolithic national identity. Different authors offer a range of viewpoints: from spatial angles that encompass urban, archipelagic, and cosmopolitan outlooks, to cultural dimensions that include Islam, adat, and ethnicity. These strategies of representation are analyzed using various feminist theories and approaches, especially those which are concerned with the notion of “symbolic space” as a “para-site” located in the margin of the dominant power, as proposed by scholars such as Ien Ang (2001), Rey Chow (1993), and bell hooks (1990). This study not only opens up a new approach to reading post-1998 Indonesian women’s fiction in the context of constructions of Indonesianness, but also furthers understanding of how cultural production in present-day Indonesia struggles to distance itself from the cultural and political legacy of the New Order, and at the same time is influenced by the long-lasting effects of that legacy.
Magnetization and Magneto-resistance in Y(Ba1-xSrx)2Cu3O7-δ (x = 0.00 - 0.50) superconductor
Creators: name: Liyanawaduge, N. P.
name: Singh, Shiva Kumar
name: Kumar, Anuj
name: Jha, Rajveer
name: Karunarathne, B. S. B
name: Awana, V. P. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Here we present the magnetic properties and upper critical field (BC2) of polycrystalline Y(Ba1-xSrx)2Cu3O7-δ superconductors, which are being determined through detailed ac/dc susceptibility and resistivity under magnetic field (RTH) study. All the samples are synthesized through solid state reaction route. Reduction in Meissner fraction (the ratio of field cooled to zero field cooled magnetization) is observed with increasing Sr content, suggesting occurrence of flux pining in the doped samples. The ac susceptibility and resistivity measurements reveal improved grain couplings in Sr substituted samples. Consequently the inter-grain critical current density (Jc), upturn curvature near the Tc in temperature dependence of upper critical field [BC2(T)], and BC2 are enhanced. Both Jc and BC2 increase in lower Sr substitution (up to x = 0.10) samples followed by decrease in higher doping due to degradation in effective pining and grain coupling.
description: 17 pages text + Figs, contect-awana@mail.nplindia.ernet.in
Long chain polyamides : influence of methylene sequence length and external forces on structural features
Creators: name: Sattler, Rene
name: Danke, Varun
name: Beiner, Mario
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 548

description: Crystallographic studies on a series of even–even polyamides PA10.n (12, 14, 16, and 18) with variable methylene sequence length (n − 2) are performed. Temperature-dependent X-ray diffraction studies show that a triclinic α phase is the preferred polymorph after slow cooling to room temperature like in many other even–even polyamides. For PA10.12 and PA10.14 the pseudo-hexagonal high temperature phase γ is observed between the Brill transition temperature TB and melting point TM. For both higher members a distinct Brill transition is absent below TM. The influence of temperature on the packing state of the stems during cooling is discussed and compared to related polymers. An analysis of well oriented crystalline states in annealed fibers reveals that the crystalline state achieved under ambient conditions is influenced by external forces due to small energetic differences between different α and β polymorphs. All PA10.n samples show in the fiber-oriented state a prominent β polymorph which is dominant in PA10.12 and PA10.14 but superimposed with a significant α fraction in both higher members. The consequences of changes in the polymorphic state under the influence of external forces for crystalline states achieved under application relevant processing conditions are considered.
Empirical Evaluation of Approaches to Testing Applications without Test Oracles
Creators: name: Murphy, Christian
name: Kaiser, Gail E.
Publisher: name: Columbia University
Year: 2010
Subjects: Computer science

description: Software testing of applications in fields like scientific computing, simulation, machine learning, etc. is particularly challenging because many applications in these domains have no reliable "test oracle" to indicate whether the program's output is correct when given arbitrary input. A common approach to testing such applications has been to use a "pseudo-oracle", in which multiple independently-developed implementations of an algorithm process an input and the results are compared. Other approaches include the use of program invariants, formal specification languages, trace and log file analysis, and metamorphic testing. In this paper, we present the results of two empirical studies in which we compare the effectiveness of some of these approaches, including metamorphic testing, pseudo-oracles, and runtime assertion checking. We also analyze the results in terms of the software development process, and discuss suggestions for practitioners and researchers who need to test software without a test oracle.
Characterization factors to assess land use impacts on pollinator abundance in life cycle assessment
Creators: name: Alejandre, Elizabeth M.
name: Paxton, Robert J.
name: [Und Viele Weitere]
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 610

description: While wild pollinators play a key role in global food production, their assessment is currently missing from the most commonly used environmental impact assessment method, Life Cycle Assessment (LCA). This is mainly due to constraints in data availability and compatibility with LCA inventories. To target this gap, relative pollinator abundance estimates were obtained with the use of a Delphi assessment, during which 25 experts, covering 16 nationalities and 45 countries of expertise, provided scores for low, typical, and high expected abundance associated with 24 land use categories. Based on these estimates, this study presents a set of globally generic characterization factors (CFs) that allows translating land use into relative impacts to wild pollinator abundance. The associated uncertainty of the CFs is presented along with an illustrative case to demonstrate the applicability in LCA studies. The CFs based on estimates that reached consensus during the Delphi assessment are recommended as readily applicable and allow key differences among land use types to be distinguished. The resulting CFs are proposed as the first step for incorporating pollinator impacts in LCA studies, exemplifying the use of expert elicitation methods as a useful tool to fill data gaps that constrain the characterization of key environmental impacts.
Correlation Functions of Conserved Currents in Four Dimensional Conformal Field Theory
Creators: name: Stanev, Yassen S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive a generating function for all the 3-point functions of higher spin conserved currents in four dimensional conformal field theory. The resulting expressions have a rather surprising factorized form which suggest that they can all be realized by currents built from free massless fields of arbitrary (half-)integer spin s. This property is however not necessarily true also for the higher-point functions. As an illustration we analyze the general 4-point function of conserved abelian U(1) currents of scale dimension equal to three and find that apart from the two free field realizations there is a unique possible function which may correspond to an interacting theory. Although this function passes several non-trivial consistency tests, it remains an open challenging problem whether it can be actually realized in an interacting CFT.
description: 20 pages, LaTeX, references added
(Re)writing Alberta
Creators: name: Fehr, Joy Anne
Publisher: name: University of Calgary
Year: 2005

description: Bibliography: p. 396-418
description: In his Literary History of Alberta, George Melnyk acknowledges writers who create"images of Alberta that continue to influence [Albertans]" (xv). This thesis begins the process of seeking out and investigating those images. I utilize Homi Bhabha's call to focus on what identities do or what is done in their names to argue that Alberta writing bears the marks of attempts to contain Alberta while it also provides evidence of vigorous resistance. Chapters One and Two establish the paradigms for my investigation. I provide a post-colonial framework through Bhabha, Edward Said, and Stephen Slemon, and I determine a working definition of Alberta writing by tracing similar arguments through Canadian and prairie literature. A prevalent Alberta image is that of the Caucasian male rancher, farmer, cowboy, or petroleum-industry worker. Turn of the previous-century promotional images and James Oliver Curwood's fiction appear to consolidate this male portrait of Alberta, but circulating in and around these narratives are the spectral presences of desirable women, figures for Jacques Derrida's revenants who are also"arrivants to whom a hospitable memory of promise must offer welcome" (Specters of Marx 175). In textual conversations with these phantoms, I remark multiple hauntings of Alberta space. The remaining chapters trace four Alberta specters. Sharon Pollock's, Nell Shipman's, Isabel Paterson’s, Aritha van Herk's, Henry Kreisel's, Suzette Mayr's, Robert Kroetsch's, and Gloria Sawai's work reveals engagements with and challenges to Alberta's desirable women in Chapter Three. Chapter Four explores the hauntings of Alberta's histories through van Herk's, James G. MacGregor's, Fred Stenson's, Howard O'Hagan's, Thomas Wharton's, Rudy Wiebe's, Peter Oliva's, Merna Summers', and Brad Fraser's writing. Chapter Five examines specters of Alberta's indigenous peoples and immigrants of colour in texts by John Wilson Bengough, Thomas King, Marilyn Dumont, Rudy Wiebe and Yvonne Johnson, Weyman Chan, Joy Kogawa, Hiromi Goto, and Claire Harris. Chapter Six considers Alberta's commodification, the promise of wealth for those who come to Alberta, and responses to these configurations. In addition to a revisitation of texts from previous chapters, this chapter investigates works by Robert Stead, Laura Hillenbrand, Winnifred Eaton, W. Mark Giles, and Leona Gorn.
The Role of Reliability, Availability and Serviceability (RAS) Models in the Design and Evaluation of Self-Healing Systems
Creators: name: Griffith, Rean
name: Virmani, Ritika
name: Kaiser, Gail E.
Publisher: name: Columbia University
Year: 2007
Subjects: Computer science

description: In an idealized scenario, self-healing systems predict, prevent or diagnose problems and take the appropriate actions to mitigate their impact with minimal human intervention. To determine how close we are to reaching this goal we require analytical techniques and practical approaches that allow us to quantify the effectiveness of a system's remediations mechanisms. In this paper we apply analytical techniques based on Reliability, Availability and Serviceability (RAS) models to evaluate individual remediation mechanisms of select system components and their combined effects on the system. We demonstrate the applicability of RAS-models to the evaluation of self-healing systems by using them to analyze various styles of remediations (reactive, preventative etc.), quantify the impact of imperfect remediations, identify sub-optimal (less effective) remediations and quantify the combined effects of all the activated remediations on the system as a whole.
Bericht über die Tätigkeit der Römisch-Germanischen Kommission in der Zeit vom 1. Januar bis 31. Dezember 1964
Creators: name: Krämer, Werner
name: Schleiermacher, Wilhelm
Publisher: name: Bericht der Römisch-Germanischen Kommission
Year: 2023

description: Bericht der Römisch-Germanischen Kommission, Bd. 45 (1964): Bericht der Römisch-Germanischen Kommission
Supplementary document for Spin-orbit coupling in photonic graphene - 4526239.pdf
Creators: name: zhang, zhaoyang
name: Liang, Shun
name: Li, Feng
name: Ning, Shaohuan
name: Li, Yiming
name: Malpuech, Guillaume
name: Zhang, Yanpeng
name: Xiao, Min
name: Solnyshkov, Dmitry
Publisher: name: Optica Publishing Group
Year: 2020
Subjects: Uncategorized

description: Supplemental document PDF