cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Non-timber Forest Products Value Chain Toward Sustainable Livelihood: Exploring Linkages and Trends Using Visual Optimization Network Analysis
Creators: name: Sharma, Ravi
name: Bharti, Nisha
name: Sharma, Ravi
name: Bharti, Nisha
Publisher: name: Unknown
Year: 2020
Subjects: subject: Research Methods/ Statistical Methods
subject: non-timber forest products
subject: NTFP
subject: development
subject: trends
subject: network visualization
subject: policy
subject: value chain
subject: livelihood security

description: Non-timber forest products (NTFPs) contribute significantly to the livelihood, food, and nutrition security of rural communities and forest dwellers. Earlier studies on NTFPs emphasized the economic importance, sustainability aspects, and commercialization of NTFPs, and highlighted the importance of strong value chains if NTFPs were to fulfill their economic potential for communities and people who rely on them. Formulation of proper policy and commercialization of NTFPs through their value chain will require a thorough review of existing research to identify the policy loopholes. A review of literature sought to determine whether research on NTFPs links to sustainable livelihood, policy, and value chains using clustering and visual network visualization. The results of the study reveal four domain clusters indicating a mix of traditional and evolved approaches toward strengthening of the NTFP value chain. Policy issues on NTFP have also evolved as one of the important clusters of research. The study recommends the mapping of value chains in the NTFP research to guide the pursuit of holistic and sustainable livelihood security.
Atomic Scale Characterization of Graphitic Surfaces
Creators: name: Chan, Nicholas
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Materials Science
subject: Engineering--Mechanical
subject: Atomic Force Microscopy
subject: Graphene
subject: Nanotribology
subject: Graphite
subject: Surface Science

description: Characterization of materials at smaller scales is important for device miniaturization and understanding fundamental mechanics of materials at atomistic levels. In this thesis, characterization of graphitic surfaces was performed using various atomic force microscopy techniques. Tip convolution effects across graphite step edges were studied using amplitude-modulated atomic force microscopy and compared with molecular dynamics (MD) simulations for varying tip sizes. Larger step widths were observed for both experiments and simulations when compared with a geometric model of the system and was attributed to material deformation. Secondly, friction studies were performed on single layer graphitic surfaces grown on Pt(111) to observe the influence of structural changes at the graphene/Pt(111) interface on lubrication. Variation in measured lateral forces and average friction forces were observed for different graphene domains due to graphene/Pt(111) lattice mismatching. These results were compared to simulations performed within the framework of the Prandtl-Tomlinson (PT) model and through Molecular Statics.
D4.2 Implementation of R17: ICT based Innovative Social Actions
Creators: name: BCNecologia
Publisher: name: Zenodo
Year: 2019
Subjects: social actions
environmental education
educational ICT tools

description: The new ICT based tools developed in the framework of Waste4Think will help to better communicate and interact with the stakeholders, increasing flexibility, transparency and better content of the awareness and empowerment actions. At the same time, these tools will help the managers of the Social Actions to have a better understanding of the knowledge and habits patterns of the users, allowing the possibility of adapting contents, messages and new interactions with the stakeholders in order to improve results. The final objective is to increase the impact of the social actions and to foster mutual learning, as well as to identify hotspots which allow to define ad hoc campaigns. D4.2 includes only the description of the use of the IT tools (R1-R15, but specially those ones specially developed for this purpose, as learning materials, apps and serious games) to some of the strategies developed by the Waste4Think pilots. The full descriptions of the Environmental Educational Plan with the strategies that are already being implemented in each pilot, target groups definition, key messages, etc. are included in D4.1. Implementation of R17: non ICT based Innovative Social Actions (Social Action Plan).
Efficient variational inference in large-scale Bayesian compressed sensing
Creators: name: Papandreou, George
name: Yuille, Alan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Information Theory (cs.IT)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We study linear models under heavy-tailed priors from a probabilistic viewpoint. Instead of computing a single sparse most probable (MAP) solution as in standard deterministic approaches, the focus in the Bayesian compressed sensing framework shifts towards capturing the full posterior distribution on the latent variables, which allows quantifying the estimation uncertainty and learning model parameters using maximum likelihood. The exact posterior distribution under the sparse linear model is intractable and we concentrate on variational Bayesian techniques to approximate it. Repeatedly computing Gaussian variances turns out to be a key requisite and constitutes the main computational bottleneck in applying variational techniques in large-scale problems. We leverage on the recently proposed Perturb-and-MAP algorithm for drawing exact samples from Gaussian Markov random fields (GMRF). The main technical contribution of our paper is to show that estimating Gaussian variances using a relatively small number of such efficiently drawn random samples is much more effective than alternative general-purpose variance estimation techniques. By reducing the problem of variance estimation to standard optimization primitives, the resulting variational algorithms are fully scalable and parallelizable, allowing Bayesian computations in extremely large-scale problems with the same memory and time complexity requirements as conventional point estimation techniques. We illustrate these ideas with experiments in image deblurring.
description: 8 pages, 3 figures, appears in Proc. IEEE Workshop on Information Theory in Computer Vision and Pattern Recognition (in conjunction with ICCV-11), Barcelona, Spain, Nov. 2011
Hamiltonian traffic dynamics in microfluidic-loop networks
Creators: name: Jeanneret, Raphaël
name: Piera-Vest, Julien
name: Bartolo, Denis
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Recent microfluidic experiments revealed that large particles advected in a fluidic loop display long-range hydrodynamic interactions. However, the consequences of such couplings on the traffic dynamics in more complex networks remain poorly understood. In this letter, we focus on the transport of a finite number of particles in one-dimensional loop networks. By combining numerical, theoretical, and experimental efforts, we evidence that this collective process offers a unique example of Hamiltonian dynamics for hydrodynamically interacting particles. In addition, we show that the asymptotic trajectories are necessarily reciprocal despite the microscopic traffic rules explicitly break the time reversal symmetry. We exploit these two remarkable properties to account for the salient features of the effective three-particle interaction induced by the exploration of fluidic loops.
Characterization of the In Vivo Consequences of Salicylate Co-Administration on the Efficacy of Topoisomerase II Poison-Based Chemotherapy in a Model of Human Breast Cancer
Creators: name: Crovetto, Gina Marie Alexandra
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Animal Physiology
subject: Biology--Cell
subject: Biology--Molecular
subject: Oncology
subject: Pharmacology
subject: Chemistry--Pharmaceutical
subject: Topoisomerase IIa
subject: Salicylate
subject: Acetylsalicylic Acid
subject: Cancer Biology
subject: Xenograft
subject: Doxorubicin
subject: Etoposide
subject: Cytotoxicity
subject: Chemotherapy
subject: Translational Research
subject: TOP2A

description: Human DNA topoisomerase IIα (TOP2A) is an essential enzyme that resolves the topological complexities of DNA, via transient DNA double-strand breaks (DSBs), during replication, transcription, and mitosis. Several gold-standard chemotherapeutics used for treating breast cancer are TOP2 poisons, which act by covalently trapping TOP2-DNA complexes leading to an accumulation of cytotoxic DNA DSBs. Salicylate, the primary metabolite of aspirin, catalytically inhibits DNA cleavage by TOP2A and is known to attenuate TOP2 poison cytotoxicity in MCF-7 breast cancer cells. Given, the widespread use of aspirin and other salicylate derivatives, determining their effects on chemotherapeutic efficacy could have far-reaching implications. To address this, a panel breast cancer cell lines was compiled to further characterize the effect of salicylate on TOP2 poison cytotoxicity. Following the in cyto work, a murine xenograft model of human breast cancer was used to evaluate the in vivo consequences of salicylate co-administration on TOP2 poison-based chemotherapy.
Ecological and evolutionary determinants of pollination network structure
Creators: name: Olito, Colin J
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Pollination
subject: Network
subject: Phenology
subject: Metrics
subject: Neutrality hypothesis
subject: Biological constraints hypothesis

description: Pollination networks, which describe the aggregate outcome of pollinators’ foraging decisions among floral resources and the resulting facilitation of reproduction in flowering plants, exhibit highly conserved structural features across diverse habitats and species assemblages. The generality of these patterns strongly suggests general underlying mechanisms, and common outcomes of the coevolutionary process between mutualists. In an empirical study of a novel alpine pollination network I show that ecological models that accurately predict network structural metrics are not necessarily doing so by accurately predicting species interactions, which are best explained by species’ phenologies. Using theoretical models, I show that in the long term, commonly observed network structures naturally emerge from evolutionary feedback between pollinators’ foraging decisions, and the resulting selection on plants’ flowering phenologies. My results also suggest that common network structures are a plausible outcome of multiple theoretical explanations that can be generated by different, and widespread biological mechanisms.
Comparison of aerobic exercise intensity prescription methods in breast cancer patients and survivors
Creators: name: Kirkham, Amy
Publisher: name: University of British Columbia
Year: 2010

description: It is accepted that exercise plays a significant role in breast cancer rehabilitation, but there has been limited emphasis on control and measurement of the intensity of exercise in cancer research. It is unknown how intensities achieved by different methods of intensity prescription compare, which complicates the interpretation and comparison of studies. The accuracy of these methods in achieving the prescribed intensity is also unknown; and methods that are inaccurate could be unsafe or ineffective in this population. Therefore, a cross-sectional study was performed to compare the achieved intensity and accuracy of four common methods of intensity prescription within and between three post-menopausal groups: breast cancer patients recently finished chemotherapy, survivors finished treatment and healthy controls (N=30). In randomized order, the metabolic equation for walking (MET equation), heart rate reserve (HRR), direct heart rate (direct HR) and rating of perceived exertion (RPE) methods were used to prescribe an intensity of 60% of oxygen consumption reserve (VO₂R) in separate 10-minute bouts, with recovery between bouts. Expired gas analysis was used to measure the intensity achieved during each bout. Accuracy was defined as: [60%VO₂R-achieved intensity]. In ranked order, the average achieved intensity (%VO₂R) and accuracy (percentage points (+/-ppts)) of the methods in the patient group were: HRR: 61%, 3 ppts; MET equation: 56%, 4 ppts; direct HR: 60%, 8 ppts; RPE: 53%, 9 ppts. The HRR method is recommended in this population based on accuracy and feasibility (no expired gas analysis or re-testing required). The MET equation method is also recommended, with re-testing to account for changes in peak oxygen consumption. The direct HR method could be unsafe, as it achieved intensities much higher than intended (77%), and would be ineffective in research where the effect of exercise is measured, as there was a large range of achieved intensities (42%). In the survivor group results were: MET equation: 59%, 3 ppts; HRR: 63%, 5 ppts; direct HR: 64%, 5 ppts; RPE: 47%, 13 ppts. The top three methods were comparable in accuracy in this group, and appear to be safe and effective, while the RPE method was inaccurate and is not recommended.
Numerical Contraction of the Tensor Network generated by the Algebraic Bethe Ansatz
Creators: name: Murg, Valentin
name: Korepin, Vladimir E.
name: Verstraete, Frank
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The algebraic Bethe Ansatz is a prosperous and well-established method for solving one-dimensional quantum models exactly. The solution of the complex eigenvalue problem is thereby reduced to the solution of a set of algebraic equations. Whereas the spectrum is usually obtained directly, the eigenstates are available only in terms of complex mathematical expressions. This makes it very hard in general to extract properties from the states, like, for example, correlation functions. In our work, we apply the tools of Tensor Network States to describe the eigenstates approximately as Matrix Product States. From the Matrix Product State expression, we then obtain observables like correlation functions directly.
Impact-parameter dependent nuclear parton distribution functions: EPS09s and EKS98s and their applications in nuclear hard processes
Creators: name: Helenius, Ilkka
name: Eskola, Kari J.
name: Honkanen, Heli
name: Salgado, Carlos A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We determine the spatial (impact parameter) dependence of nuclear parton distribution functions (nPDFs) using the $A$-dependence of the spatially independent (averaged) global fits EPS09 and EKS98. We work under the assumption that the spatial dependence can be formulated as a power series of the nuclear thickness functions $T_A$. To reproduce the $A$-dependence over the entire $x$ range we need terms up to $[T_A]^4$. As an outcome, we release two sets, EPS09s (LO, NLO, error sets) and EKS98s, of spatially dependent nPDFs for public use. We also discuss the implementation of these into the existing calculations. With our results, the centrality dependence of nuclear hard-process observables can be studied consistently with the globally fitted nPDFs for the first time. As an application, we first calculate the LO nuclear modification factor $R^{1jet}_{AA}$ for primary partonic-jet production in different centrality classes in Au+Au collisions at RHIC and Pb+Pb collisions at LHC. Also the corresponding central-to-peripheral ratios $R_{CP}^{1jet}$ are studied. We also calculate the LO and NLO nuclear modification factors for single inclusive neutral pion production, $R_{dAu}^{π^0}$, at mid- and forward rapidities in different centrality classes in d+Au collisions at RHIC. In particular, we show that our results are compatible with the PHENIX mid-rapidity data within the overall normalization uncertainties given by the experiment. Finally, we show our predictions for the corresponding modifications $R_{pPb}^{π^0}$ in the forthcoming p+Pb collisions at LHC.
description: 36 pages
Arvia’juaq National Historic Site: A Case Study on Heritage and Virtual Tourism in the Canadian Arctic
Creators: name: Porter, Mary Cecilia
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Education--Social Sciences
subject: Archaeology
subject: Anthropology--Cultural
subject: History--Ancient
subject: Arctic Archaeology
subject: Panoramas
subject: Panospheres
subject: Indigenous Archaeology
subject: Overcoming remoteness
subject: National Historic Sites of Canada
subject: Arviat
subject: Arvia'juaq
subject: Sentry Island

description: This community-engaged archaeological research focuses on overcoming remoteness of important archaeological sites in terms of imparting their message of significance to the broader public. The focus of this project is Arvia’juaq National Historic Site located off the West coast of Hudson Bay in Nunavut, Canada. For this research, a proof of concept interactive virtual tour was constructed using panoramic images of Arvia’juaq. Issues examined include the importance of public outreach, engagement of local communities through virtual heritage, overcoming the digital divide in the Canadian Arctic, and the use of VR panoramas for connecting people to places that might otherwise be inaccessible. This has important implications for raising awareness of polar heritage and its significance to Indigenous people, as well as to national and international audiences.
Accounting for the XRT early steep decay in models of the prompt GRB emission
Creators: name: Hascoët, R.
name: Daigne, F.
name: Mochkovitch, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Swift-XRT observations of the early X-ray afterglow of GRBs show that it usually begins with a steep decay phase. A possible origin of this early steep decay is the high latitude emission that subsists when the on-axis emission of the last dissipating regions in the relativistic outflow has been switched-off. We wish to establish which of various models of the prompt emission are compatible with this interpretation. We successively consider internal shocks, photospheric emission, and magnetic reconnection and obtain the typical decay timescale at the end of the prompt phase in each case. Only internal shocks naturally predict a decay timescale comparable to the burst duration, as required to explain XRT observations in terms of high latitude emission. The decay timescale of the high latitude emission is much too short in photospheric models and the observed decay must then correspond to an effective and generic behavior of the central engine. Reconnection models require some ad hoc assumptions to agree with the data, which will have to be validated when a better description of the reconnection process becomes available.
description: 4 pages, 2 figures
Selection of Peritoneal Dialysis Among Older Eligible Patients with End-Stage Renal Disease
Creators: name: Wong, Ben
Publisher: name: Graduate Studies
Year: 2016
Subjects: Medicine and Surgery

description: This study seeks to explore potential patient and care provider barriers that may explain why older patients with end-stage renal disease (ESRD) are less likely to choose peritoneal dialysis (PD). A mixed methods approach was used: survival analysis was performed on administrative data of patients deemed eligible for both PD and hemodialysis (HD); semi-structured interviews were also conducted with older patients. We found PD and HD are associated with similar survival in incident dialysis patients regardless of patient’s age, and the effect of modality on survival did not vary with follow-up time. Selection of a particular dialysis modality is highly personal and is driven by patient preference for the convenience and maintenance of a normal life provided by PD versus the heightened sense of security afforded by in-centre HD. Addressing these issues when counselling about dialysis choice may help increase PD uptake among older ESRD patients.
Should I Tell? Online Accounts of Disclosing an Eating Disorder
Creators: name: Williams, Emily
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Educational Psychology
subject: Eating Disorders
subject: Situational Analysis
subject: disclosure
subject: eating disorder websites

description: Disclosing one’s mental illness can be difficult for individuals, particularly those with eating disorders. Individuals struggling with eating disorders fear that judgment, misunderstanding, and stigmatization may result from disclosing the illness with others. Due to the vulnerability of disclosing face-to-face, online communities created for those with eating disorders have become increasingly popular. These online eating disorder websites (i.e., Grace on the Moon, Daily Strength, My Pro Ana) are considered safe places for individuals to communicate with anonymity. This research project utilized a situational analysis to deeply examine the online accounts of individuals who disclosed or spoke about disclosing their eating disorders. Situational analysis, a postmodern method utilizing mapping techniques to illustrate the complexity of the situation, was used to highlight heterogeneities rather than commonalities from the data. Findings demonstrated (a) fear associated with disclosing one’s eating disorder, (b) tensions and differences of recipient’s responses to disclosures, (c) conflicting discourses about eating disorders, and (d) various reasons or desires one has that prompt the disclosure of an eating disorder. Findings from this project are relevant to clinicians working with individuals with eating disorders, and shed light on the hesitation to disclose a potentially shameful experience. Further, findings have important implications for the profession of counselling psychology, and suggest the need for family based therapy and offering increased psychological services over the Internet for those with eating disorders.
Favourability map of British Columbia geothermal resources
Creators: name: Kimball, Sarah
Publisher: name: University of British Columbia
Year: 2010

description: British Columbia’s internal demand for power and demand from export operations is increasing the need for power generation in the province. Moreover, the transition to a low carbon economy stipulates that power supply must be from renewable and low emission sources. Geothermal energy offers significant benefits to British Columbia which hosts Canada’s best geothermal resources associated with the Pacific Ring of Fire along the Coast Mountain Range. The objective of this work was to visualize and compare the spatial distribution of geothermal resources, transmission infrastructure, and power markets in BC. Using ArcGIS, these factors were combined into a map identifying the most favourable regions for geothermal development in the province. Multi-criteria evaluation of 10 evidence layers was completed in a knowledge-driven model. Publicly available data for temperature gradient, heat flow, volcanic centers, geothermometry, hot springs, geology, faults, and earthquake indicators comprised the resource factor map. Evidence layers in the market and infrastructure factor map included: distance to transmission, regional pricing, and population density. Evidence layers were assigned weights based on a judgment of their importance to geothermal favourability using the Analytical Hierarchy Process. The favourability map builds on the 1992 Geothermal Resources Map of British Columbia by incorporating new data, and applying spatial buffers based on studies from producing geothermal fields from around the world. The research has demonstrated how economic and infrastructure factors can be integrated into the evaluation of a region’s geothermal resources.
Constrained Motion Estimation for a Multi-Camera System
Creators: name: Mazaheri Tehrani, Mehdi
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Computer Science
subject: Motion Estimation
subject: Mutli-Camera systems
subject: Rotation Averaging

description: Compared to a single camera, multi-camera systems view a larger field and collect more data for motion estimation and 3D reconstruction. The constant rigid body transformation between the cameras mounted (mounting parameters) is valuable knowledge for outlier detection and estimation of the system motion in real scale. In this research, the mounting parameters of the cameras are estimated in single step through bundle adjustment. Taking advantage of the mounting parameters, a methodology is proposed to estimate the system motion between successive data acquisition epochs. In this method, several estimates for the system rotation are obtained by constraining the relative rotation of the individual cameras. The outliers within the rotation estimates are filtered out and the inliers are averaged. Then, the system translation is estimated by solving a system of linear equations. The experimental results show that the proposed methodology can successfully recover the multi-camera system motion.
The curvature tensor of (\ka,μ,ν)-contact metric manifolds
Creators: name: Arslan, Kadri
name: Carriazo, Alfonso
name: Martín-Molina, Verónica
name: Murathan, Cengizhan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C25, 53C35, 53D15

description: We study the Riemann curvature tensor of (κ,μ,ν)-contact metric manifolds, which we prove to be completely determined in dimension 3, and we observe how it is affected by D_a-homothetic deformations. This prompts the definition and study of generalized (κ,μ,ν)-space forms and of the necessary and sufficient conditions for them to be conformally flat.
Does the Amount of Gestational Weight Gain Modify the Risk of Adverse Maternal and Neonatal Outcomes for Obese Women?
Creators: name: Salmon, Charleen Nicole
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Obstetrics and Gynecology
subject: Obesity
subject: Pregnancy
subject: Weight
subject: BMI

description: Background: Obesity during pregnancy is growing in prevalence. There has been a significant linear increase in the prevalence of obesity in American women from 35% (95% CI: 32 – 38) in 2005 to 40.5% (95% CI: 37.6 – 43.4) in 2014 (1). The increase in prevalence of obesity (body mass index (BMI) ≥ 30 kg/m2) is also seen in women of reproductive age (2). Previous studies suggested that the Institute of Medicine (IOM) gestational weight gain (GWG) guidelines needed modification by obesity severity. Objectives: The present study investigated whether the IOM guidelines for obese women needed modification for obesity severity by determining the risk of maternal, obstetric, and neonatal outcomes for class I, II and III obese pregnant women who either: lost weight during pregnancy, gained below the IOM guidelines, or gained above the IOM guidelines, compared to women who gained within the IOM guidelines (11-20 lbs). Methods: A cross-sectional study using 2014 U.S. birth certificate data (N=646,642). Chi-square tests examined associations between GWG categories and adverse outcomes. Log-binomial regression models were built to examine relative risks of adverse maternal, obstetric, and neonatal outcomes following adjustment for maternal age, education, marital status, race, insurance status, and parity. Results: The observed pattern of association was the same between all 3 obese classes indicating evidence for a single GWG recommendation for all 3 classes of obesity. Obese women who lost weight during pregnancy or gained below the IOM recommendations were at a significantly decreased risk for caesarean delivery (RR, 95% CI class I: 0.92, 0.90-0.94; II: 0.91, 0.89-0.93; III: 0.92, 0.90-0.93) and large-for-gestational age (LGA) births (class I: 0.80, 0.77-0.83; II: 0.76, 0.73-0.78; III: 0.73, 0.70-0.75) but had a significantly increased risk of small-for-gestational age (SGA) births (class I: 1.34, 1.26-1.43; II: 1.381.28-1.49; III: 1.35, 1.24-1.46) compared to women who had GWG within IOM guidelines. Obese women who gained above IOM guidelines were at an increased risk for caesarean delivery and LGA births but are at a decreased risk for SGA births. Conclusion: A single GWG recommendation for all obese women is possible, but 2009 IOM guidelines may need to be updated as current recommendations may be too high.
Scalable fiber integrated source for higher-dimensional path-entangled photonic quNits
Creators: name: Schaeff, Christoph
name: Polster, Robert
name: Lapkiewicz, Radek
name: Fickler, Robert
name: Ramelow, Sven
name: Zeilinger, Anton
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Integrated photonic circuits offer the possibility for complex quantum optical experiments in higher-dimensional photonic systems. However, the advantages of integration and scalability can only be fully utilized with the availability of a source for higher-dimensional entangled photons. Here, a novel fiber integrated source for path-entangled photons in the telecom band at 1.55\mum using only standard fiber technology is presented. Due to the special design the source shows good scalability towards higher-dimensional entangled photonic states (quNits), while path entanglement offers direct compatibility with on-chip path encoding. We present an experimental realization of a path-entangled two-qubit source. A very high quality of entanglement is verified by various measurements, i.a. a tomographic state reconstruction is performed leading to a background corrected fidelity of (99.45+-0.06)%. Moreover, we describe an easy method for extending our source to arbitrarily high dimensions.
description: 9 pages, 3 figures, to be published in Optics Express Vol. 20, No. 10 (05/07/2012)
Ab Initio Wall-Crossing
Creators: name: Kim, Heeyeon
name: Park, Jaemo
name: Wang, Zhaolong
name: Yi, Piljin
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive supersymmetric quantum mechanics of n BPS objects with 3n position degrees of freedom and 4n fermionic partners with SO(4) R-symmetry. The potential terms, essential and sufficient for the index problem for non-threshold BPS states, are universal, and 2(n-1) dimensional classical moduli spaces M_n emerge from zero locus of the potential energy. We emphasize that there is no natural reduction of the quantum mechanics to M_n, contrary to the conventional wisdom. Nevertheless, via an index-preserving deformation that breaks supersymmetry partially, we derive a Dirac index on M_n as the fundamental state counting quantity. This rigorously fills a missing link in the "Coulomb phase" wall-crossing formula in literature. We then impose Bose/Fermi statistics of identical centers, and derive the general wall-crossing formula, applicable to both BPS black holes and BPS dyons. Also explained dynamically is how the rational invariant ~Ω(β)/p^2, appearing repeatedly in wall-crossing formulae, can be understood as the universal multiplicative factor due to p identical, coincident, yet unbound, BPS particles of charge β. Along the way, we also clarify relationships between field theory state countings and quantum mechanical indices.
description: 66 pages; section 4.3 expanded slightly, several typos corrected, version to appear in JHEP
Loss-enabled sub-Poissonian light generation in a bimodal nanocavity
Creators: name: Majumdar, Arka
name: Bajcsy, Michal
name: Rundquist, Armand
name: Vuckovic, Jelena
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose an implementation of a source of strongly sub-Poissonian light in a system consisting of a quantum dot coupled to both modes of a lossy bimodal optical cavity. When one mode of the cavity is resonantly driven with coherent light, the system will act as an efficient photon number filter, and the transmitted light will have a strongly sub-Poissonian character. In addition to numerical simulations demonstrating this effect, we present a physical explanation of the underlying mechanism. In particular, we show that the effect results from an interference between the coherent light transmitted through the resonant cavity and the super-Poissonian light generated by photon-induced tunneling. Peculiarly, this effect vanishes in the absence of the cavity loss.
சமூகவியல் நோக்கில் தொல்காப்பிய உரை புலப்படுத்தும் தாய்க்கொலை
Creators: name: S Mahesh Pandi
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature

description: மூலநூலிற்கு உரை வரையும் உரையாசிரியர்கள் இருவேறு காலச்சூழலுக்குள் உழல்கின்றனர். ஆசிரியரின் கருத்தை விவரித்து உரைப்பதற்கு தம் காலச்சூழலை ஒட்டி எடுத்துக்காட்டுகளைக் கூறித் தெளிவுபடுத்துகின்றனர். அவற்றில் தாய்க்கொலை என்ற சொல்லடைவு கவனத்திற்குரியதாக அமைகின்றது. தாய்வழிச் சமூகம்இ தந்தைவழிச் சமூகம் என்ற சமூககோட்பாட்டின்படி தாய்க்கொலை என்பது கணவாழ்விலிருந்து விடுபட்டு அரசுரிமை பெறமுயலும் சமூகத்தின் எத்தனிப்பைக் காட்டுகின்றது. தாய் மகன் உறவுநிலை குறித்த சமூக அமைப்பினையும் இலக்கணவிதியையும் உரையாசிரியர்களின் வழி ஆய்வதாக இக்கட்டுரையின் கருதுகோள் அமைகின்றது.
Living stories one day at a time: Recovery storytelling in online communities of practice
Creators: name: Hedges, Amber
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Mass Communications
subject: addiction
subject: alcoholic
subject: alcoholism
subject: alcohol abuse
subject: alcohol use disorder
subject: alcohol dependence
subject: autoethnography
subject: computer mediated communication
subject: community of practice
subject: Help-seeking
subject: Identity
subject: narrative
subject: online community
subject: Recovery
subject: sobriety
subject: Stigma
subject: storytelling
subject: substance abuse

description: Recovery is an on-going, socially constructed practice that is “done” by individuals through storytelling. The purpose of this thesis is to investigate and explain how members of an online community of practice –r/stropdrinking (r/SD)– normalize recovery by crafting and enacting a recovery identity through recovery storytelling in a stigma-laden world with others. The aim of this thesis is to make sense of how self-described disordered drinkers “do” recovery in online communities of practice (CoP). I argue that alcohol use disorder (AUD) is a disorder of a person in social context, and that storytelling is the process through which recovery is enacted in the world. For data collection and analysis, I applied an autoethnographic storytelling approach. Three processes of recovery storytelling emerged: (re)storying, (re)forming, and (re)learning. These aspects are mutually interdependent and make up a recovery helix that must be nurtured through storytelling. CoP is also described as helical, made up of engagement, imagination, and alignment. These helixes work together to when people “do” recovery online, and are helpful models to unpack how recovery is done in concert with others. This thesis provides an alternative narrative about the lived experience of AUD recovery in pursuit of dismantling stigma. By telling stories about AUD recovery, I am promoting help-seeking and manifesting a social context that responds to AUD with compassionate concern.
Anisocentropus (Anisocentropus) fijianus Banks 1936
Creators: name: Oláh, János
name: Johanson, Kjell Arne
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Calamoceratidae
Anisocentropus
Anisocentropus fijianus

description: Anisocentropus (Anisocentropus) fijianus Banks Fig. 28 Anisocentropus fijianus Banks, 1936: 29. Type locality: Fiji Islands. New Records: FIJI ISLANDS: Vanua Levu: Nuivanda, 3–5.ix.1975 [H.S. Robinson & P.A. Maddison] — 6 males (NHML, in alcohol); Savura Creek, 31.vii.1975 [P.A. Maddison] — 1 male (NHML, in alcohol); Savudvodra Dam, 10.ii.1971 [G.S. Robinson] — 4 females (NHML, in alcohol); Macuata Province, Dogotuki, 2.5 km E Nasavu River, 7.vii.2003, Malaise trap [M. Irwin, E. Schlinger & M. Tokota’a], 16.2519 ° S, 179.7833 ° E — 1 female (BMH, in alcohol); Macuata Province, Rokosalase, 8.vi.–21.vi.04 [M. Irwin, E. Schlinger & M.Tokota’a], Malaise trap in forest 179 ° 1 ’ 147 ’’ E, 16 ° 31 ’ 891 ’’ S, 105 m ─ 1 female (BMH, in alcohol). Viti Levu: Suva, Savura Creek, 31.vii.1975, MV light [P.A. Maddison] — 1 female (NHML, in alcohol); Vuda Prov., 1 km E Abaca Vlg., Koroyanitu Ntl. Pk., 800 m, Kokabula Trail, 17 ° 40 ’ S, 177 ° 33 ’ E, 12– 19.xi.02, Malaise trap [E. Schlinger & H. Tokota’a] — 1 male (BMH, in alcohol); Vuda Prov., 1 km E Abaca Vig., Savuione Trl. 800 m, 17.667 ° S, 177.55 ° E, 11–19.iii.2003, Malaise trap 1 [E. Schlinger & H. Tokota’a] — 1 male, 1 female (BMH, in alcohol); Vuda Prov., 1 km E Abaca Vlg., Koroyanitu, Ntl. Pk. 800 m, Savuione Trl., 17 ° 40 ’ S, 177.33 ° E, 7–12.x.2002, Malaise trap 1 [E. Schlinger & H. Tokota’a] — 1 female (BMH, in alcohol); Vuda Prov., Koroyanitu Eco Park, Mt Evans Range, 0.5 km N Abaca Vig. (17.557, 177.55) 800 m, 25.x– 5.xi.2002, Malaise trap 1 [E. Schlinger & H. Tokota’a] — 1 female (BMH, in alcohol); Vuda Prov., Koroyanitu Pk. 1 km E Abaca Vig., 800 m, 22.iv–6.v.2003, Malaise trap 1 [E. Schlinger & H. Tokota’a], 17.667 ° S, 177.55 ° E — 1 female (BMH, in alcohol).
description: Published as part of Oláh, János & Johanson, Kjell Arne, 2010, Description of 33 new species of Calamoceratidae, Molannidae, Odontoceridae and Philorheithridae (Trichoptera), with detailed presentation of their cephalic setal warts and grooves 2457, pp. 1-128 in Zootaxa 2457 (1) on page 20, DOI: 10.11646/zootaxa.2457.1.1, http://zenodo.org/record/5313709
description: {"references": ["Banks, N. (1936) Trichoptera from the Fiji islands. Psyche, 43, 29 - 36."]}
True photo-counting statistics of multiple on-off detectors
Creators: name: Sperling, J.
name: Vogel, W.
name: Agarwal, G. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive a closed photo-counting formula, including noise counts and a finite quantum efficiency, for photon number resolving detectors based on on-off detectors. It applies to detection schemes such as array detectors and multiplexing setups. The result renders it possible to compare the corresponding measured counting statistics with the true photon number statistics of arbitrary quantum states. The photo-counting formula is applied to the discrimination of photon numbers of Fock states, squeezed states, and odd coherent states. It is illustrated for coherent states that our formula is indispensable for the correct interpretation of quantum effects observed with such devices.
description: 7 pages, 4 figures
தாய்க்கொலை
Creators: name: S Mahesh Pandi
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature

description: மூலநூலிற்கு உரை வரையும் உரையாசிரியர்கள் இருவேறு காலச்சூழலுக்குள் உழல்கின்றனர். ஆசிரியரின் கருத்தை விவரித்து உரைப்பதற்கு தம் காலச்சூழலை ஒட்டி எடுத்துக்காட்டுகளைக் கூறித் தெளிவுபடுத்துகின்றனர். அவற்றில் தாய்க்கொலை என்ற சொல்லடைவு கவனத்திற்குரியதாக அமைகின்றது. தாய்வழிச் சமூகம்இ தந்தைவழிச் சமூகம் என்ற சமூககோட்பாட்டின்படி தாய்க்கொலை என்பது கணவாழ்விலிருந்து விடுபட்டு அரசுரிமை பெறமுயலும் சமூகத்தின் எத்தனிப்பைக் காட்டுகின்றது. தாய் மகன் உறவுநிலை குறித்த சமூக அமைப்பினையும் இலக்கணவிதியையும் உரையாசிரியர்களின் வழி ஆய்வதாக இக்கட்டுரையின் கருதுகோள் அமைகின்றது.
Semi-Automatically Extracting FAQs to Improve Accessibility of Software Development Knowledge
Creators: name: Henß, Stefan
name: Monperrus, Martin
name: Mezini, Mira
Publisher: name: arXiv
Year: 2012
Subjects: subject: Software Engineering (cs.SE)
subject: Computation and Language (cs.CL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Frequently asked questions (FAQs) are a popular way to document software development knowledge. As creating such documents is expensive, this paper presents an approach for automatically extracting FAQs from sources of software development discussion, such as mailing lists and Internet forums, by combining techniques of text mining and natural language processing. We apply the approach to popular mailing lists and carry out a survey among software developers to show that it is able to extract high-quality FAQs that may be further improved by experts.
description: ICSE - 34th International Conference on Software Engineering (2012)
Correction of Motion Artifacts in Whole Heart Optical Mapping Data Using Ratiometry and Image Processing Techniques
Creators: name: Rodriguez Ramirez, Marcela Patricia
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering--Biomedical
subject: Engineering--Electronics and Electrical
subject: Cardiac Optical Mapping
subject: Ratiometry
subject: Image Registration
subject: Control of Motion Artifacts
subject: Motion Estimation

description: Cardiac optical mapping is a powerful tool to understand the electrophysiological mechanisms responsible for normal and abnormal cardiac rhythm. However, motion artifacts contained in the optical action potentials (APs) represent a major drawback of the technique. The calculation of electrophysiological parameters of interest such as action potential duration (APD) is challenged by the presence of motion artifacts. The use of chemical motion blockers is currently a preferable method to control motion artifacts, however these may affect the cardiac electrophysiology and consensus regarding their effects has not been reached. This thesis presents several key developments in techniques for motion artifact correction. Weighted ratiometry was implemented aiming to reduce motion artifacts in dual wavelength recordings. This thesis reports differences in shape and amplitude between motion artifacts contained in corresponding APs at both wavelengths. A new mathematical representation for motion artifacts is also presented to model such differences. Gross motion artifacts due to misalignment of the preparation with the imaging sensor across time are the result of the mechanical contraction of the heart. Landmark-based image registration is introduced to correct for such artifacts. It was concluded that the use of scale invariant feature transform (SIFT) is preferable for the datasets presented among the techniques evaluated for motion estimation. Several landmark-based non-rigid registration methods are studied in this thesis and their performance compared; coherence point drift (CPD) algorithms performed better for this application. Image registration resulted in good correction of gross motion artifacts, however artifacts with other origins must be handled separately. The combination of weighted ratiometry and landmark-based non-rigid registration is also evaluated as a composite method to further reduce artifacts that the techniques were not able to correct individually. The technique produced good correction and APDs calculated from the corrected datasets present low error values compared to a gold standard. APD modulation with 4-Aminopyridine served as a tool to corroborate that the combination of weighted ratiometry and image registration is able to reduce motion artifacts in APs to the point where APD can be calculated and the modulation of APD quantified.
Observation of the intrinsic Abraham force in time-varying magnetic and electric fields
Creators: name: Rikken, Geert L. J. A.
name: Van Tiggelen, Bart
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The Abraham force exerted by a time-dependent electromagnetic field on neutral, polarizable matter has two contributions. The one induced by a time-varying magnetic field and a static electric field is reported here for the first time. We discuss our results in the context of the radiative momentum in matter. Our observations are consistent with Abraham's and Nelson's versions for radiative momentum.
description: 5 pages, to appear in Phys. Rev. Lett
The Uninteresting Majority: Post-Realist Fiction and the Masculine Archetype in 1950s America
Creators: name: Kriz, Matthew
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Literature
subject: Literature--American
subject: History--United States
subject: American literature
subject: Masculinity
subject: 1950s
subject: Literary Criticism
subject: Realism

description: “The Uninteresting Majority” is a study of postwar American realist fiction written in the immediate postwar era and about the Second World War and the decade, the 1950s, that immediately followed it. The study views this period, and the novels under examination, as “post-realist.” The study defines post-realism as a way of defining reality only in terms of the present. In post-realism the past is wilfully ignored in favour of an all-encompassing present. It creates in effect a simulacrum of reality that simultaneously exists because of the past (especially in terms of the Depression and the war) and somehow in spite of it. “The Uninteresting Majority” observes how this post-realist effect is manifested in literature and how this distinctive way of viewing reality shapes not only past representations of the decade, but current ones as well. The focal point for both this study and the era as a whole is the archetypal middle-class white male American. It is his transition from soldier and licensed killer in wartime to family man and corporate employee in peacetime, a transition that suggests much dissonance, that sparks the post-realist attempt to foreclose the past. This study’s sections examine different representations of post-realism. The first focuses on texts that suggest its formation during wartime, where the Army’s indifference towards an individual’s background suggests an erasure of the past. The second finds texts that wholeheartedly embrace post-realism as a paradigm, suggesting that history only matters in terms of how it justifies the present. The third examines texts that reject the post-realist ideal and its focus only on present prosperity. The final section, on the television program Mad Men, discusses how the idea of post-realism shapes our current understanding of the 1950s as a period.
W-algebras at the critical level
Creators: name: Arakawa, Tomoyuki
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Let g be a complex simple Lie algebra, f a nilpotent element of g. We show that (1) the center of the W-algebra $W^{cri}(g,f)$ associated with (g,f) at the critical level coincides with the Feigin-Frenkel center of the affine Lie algebra associated with g, (2) the centerless quotient $W_χ(g,f)$ of $W^{cri}(g,f)$ corresponding to an oper $χ$ on the disc is simple, (3) the simple quotient $W_χ(g,f)$ is a quantization of the jet scheme of the intersection of the Slodowy slice at f with the nilpotent cone of g.