cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Event dependence in U.S. executions
Creators: name: Box-Steffensmeier, Janet M.
name: Campbell, Benjamin W.
name: Baumgartner, Frank R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Since 1976, the United States has seen over 1,400 judicial executions, and these have been highly concentrated in only a few states and counties. The number of executions across counties appears to fit a stretched distribution. These distributions are typically reflective of self-reinforcing processes where the probability of observing an event increases for each previous event. To examine these processes, we employ two-pronged empirical strategy. First, we utilize bootstrapped Kolmogorov-Smirnov tests to determine whether the pattern of executions reflect a stretched distribution, and confirm that they do. Second, we test for event-dependence using the Conditional Frailty Model. Our tests estimate the monthly hazard of an execution in a given county, accounting for the number of previous executions, homicides, poverty, and population demographics. Controlling for other factors, we find that the number of prior executions in a county increases the probability of the next execution and accelerates its timing. Once a jurisdiction goes down a given path, the path becomes self-reinforcing, causing the counties to separate out into those never executing (the vast majority of counties) and those which use the punishment frequently. This finding is of great legal and normative concern, and ultimately, may not be consistent with the equal protection clause of the U.S. Constitution.
Mining StackOverflow to Filter out Off-topic IRC Discussion
Creators: Chowdhury, S.A.
Hindle, Abram
Publisher: name: University of Alberta Library
Year: 2015

Internet Relay Chat (IRC) is a commonly used tool by Open Source developers. Developers use IRC channels to discuss programming related problems, but much of the discussion is irrelevant and off-topic. Essentially if we treat IRC discussions like email messages, and apply spam filtering, we can try to filter out the spam (the off-topic discussions) from the ham (the programming discussions). Yet we need labelled data that unfortunately takes time to curate. To avoid costly cur ration in order to filter out off-topic discussions, we need positive and negative data-sources. On-line discussion forums, such as Stack Overflow, are very effective for solving programming problems. By engaging in open-data, Stack Overflow data becomes a powerful source of labelled text regarding programming. This work shows that we can train classifiers using Stack Overflow posts as positive examples of on-topic programming discussion. You Tube video comments, notorious for their lack of quality, serve as training set of off-topic discussion. By exploiting these datasets, accurate classifiers can be built, tested and evaluated that require very little effort for end-users to deploy and exploit.
A system-call based model of software energy consumption without hardware instrumentation
Creators: Chowdhury, S.A.
Kumar, L.N.
Imam, M.T.
Jabbar, M.S.
Sapra, V.
Aggarwal, K.
Hindle, Abram
Greiner, R.
Publisher: name: University of Alberta Library
Year: 2015

The first challenge to develop an energy efficient application is to measure the application's energy consumption, which requires sophisticated hardware infrastructure and significant amounts of developers' time. Models and tools that estimate software energy consumption can save developers time, as application profiling is much easier and more widely available than hardware instrumentation for measuring software energy consumption. Our work focuses on modelling software energy consumption by using system calls and machine learning techniques. This system call based model is validated against actual energy measurements from five different Android applications. These results demonstrate that system call counts can successfully model software energy consumption if the idle energy consumption of an application is estimated or known. In the absence of any knowledge of an application's idle energy consumption, our system call based approach is still useful to compare the energy consumption among different versions of the same application.
Multilabel 12-Lead Electrocardiogram Classification Using Gradient Boosting Tree Ensemble
Creators: Wong, A.W.
Sun, W.
Kalmady, S.V.
Kaul, P.
Hindle, Abram
Publisher: name: University of Alberta Library
Year: 2020

The 12-lead electrocardiogram (ECG) is a commonly used tool for detecting cardiac abnormalities such as atrial fibrillation, blocks, and irregular complexes. For the PhysioNet/CinC 2020 Challenge, we built an algorithm using gradient boosted tree ensembles fitted on morphology and signal processing features to classify ECG diagnosis. For each lead, we derive features from heart rate variability, PQRST template shape, and the full signal waveform. We join the features of all 12 leads to fit an ensemble of gradient boosting decision trees to predict probabilities of ECG instances belonging to each class. We train a phase one set of feature importance determining models to isolate the top 1,000 most important features to use in our phase two diagnosis prediction models. We use repeated random sub-sampling by splitting our dataset of 43,101 records into 100 independent runs of 85:15 training/validation splits for our internal evaluation results. Our methodology generates us an official phase validation set score of 0.476 and test set score of -0.080 under the team name, CVC, placing us 36 out of 41 in the rankings.
Effect of type of fertilization and maturity on quality of fresh-cut red and yellow peppers (Capsicum annuum L.)
Creators: name: Piazzolla, F.
name: Amodio, M.L.
name: Rinaldi, R.
name: Raimo, F.
name: Colelli, G.
Publisher: name: Advances in Horticultural Science
Year: 2013

description: The aim of this work was to evaluate the effect of the type of fertilization (mineral and combined fertilization with compost in pre-transplant plus mineral addition during cultivation) and stage of maturity at harvest (mature-green and full-colored) on post-cutting quality of red and yellow ‘Cazzone’ peppers. Peppers were cut into strips, and air-stored for 8 days at 5°C. During storage, color, appearance score, firmness, respiration rate, soluble solids, acidity, pH, vitamin C, total phenols, and antioxidant activity were measured. The maturity stage influenced color parameters and soluble solids, acidity and pH for both yellow and red types. Full-colored peppers showed a lower respiration rate, and higher SSC than mature-green peppers; for the yellow type, a lower firmness value was observed for full-colored fruits compared to the mature-green ones. A lower antioxidant activity was also observed in the yellow type fertilized with the combined treatment, while phenol content in full-colored peppers was higher than in mature-green ones. Fresh-cut yellow peppers showed higher susceptibility to decay compared to red types: after 8 days of storage, the appearance score in mineral fertilized full-colored yellow peppers dramatically decreased below the limit of marketability. The results of this experiment show that the type of fertilization and maturity stage can have varying impact on the quality of yellow and red peppers.
description: Advances in Horticultural Science, Vol 26 No 2 (2012)
Long-Slit Spectroscopy of Parsec-Scale Jets from DG Tauri
Creators: name: Oh, Heeyoung
name: Pyo, Tae-Soo
name: Yuk, In-Soo
name: Park, Byeong-Gon
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present observational results from optical long-slit spectroscopy of parsec-scale jets of DG Tau. From HH 158 and HH 702, the optical emission lines of H_alpha, [O I] 6300, 6363, [N II] 6548, 6584, and [S II] 6716, 6731 are obtained. The kinematics and physical properties (i.e., electron density, electron temperature, ionization fraction, and mass-loss rate) are investigated along the blueshifted jet up to 650 arcseconds distance from the source. For HH 158, the radial velocity ranges from -50 to -250 km/s. The proper motion of the knots is 0.196 - 0.272 /yr. The electron density is ~ 10^{4}/cm^{3} close to the star, and decreases to ~ 10^{2} /cm^{3} at 14 arcseconds away from the star. Ionization fraction indicates that the gas is almost neutral in the vicinity of the source. It increases up to over 0.4 along the distance. HH 702 is located at ~ 650 arcseconds from the source. It shows ~ -80 km/s in the radial velocity. Its line ratios are similar to those at knot C of HH 158. The mass-loss rate is estimated to be about ~ 10^{-7} M_{sun}/yr, which is similar to values obtained from previous studies.
Growth, yield and fruit quality of strawberry under protected cultivation in South Kashmir
Creators: name: Kumar, A.
name: Ahad, I.
Publisher: name: Advances in Horticultural Science
Year: 2013

description: Field experiments were conducted at Krishi Vigyan Kendra, Pulwama, Jammu and Kashmir at an altitude of 1601 m amsl to identify the suitable strawberry cultivars for higher production of good quality fruits. Eight strawberry cultivars were evaluated for two consecutive years (2008-09 and 2009-10) under polyhouse conditions. Maximum plant spread (27.43 cm) along with maximum number of runners (8.54) was produced by ‘Chandler’. ‘Tioga’ produced first flower in 97 days after planting, while runners of ‘Chandler’ (56.79) flowered for maximum number of days. ‘Chandler’ produced maximum number of flowers per plant (27.23) and set maximum berries (86.01%), however final yield of ber- ries was more in ‘Tioga’ which recorded maximum yield per plot (2.26 kg), closely followed by ‘Chandler’ (2.19 kg). Berry weight (12.24 g) and berry size (5.10 cm length and 4.73 cm) was maximum in ‘Tioga’. ‘Catskill’ registered maximum for all the biochemical characters, closely followed by ‘Tioga’. Overall, ‘Chandler’, ‘Catskill’ and ‘Tioga’ performed well under polyhouse conditions in Kashmir Valley.
description: Advances in Horticultural Science, Vol 26 No 2 (2012)
Reflected entropy in random tensor networks II: a topological index from the canonical purification
Creators: name: Akers, Chris
name: Faulkner, Thomas
name: Lin, Simon
name: Rath, Pratik
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In arXiv:2112.09122, we analyzed the reflected entropy ($S_R$) in random tensor networks motivated by its proposed duality to the entanglement wedge cross section (EW) in holographic theories, $S_R=2 \frac{EW}{4G}$. In this paper, we discover further details of this duality by analyzing a simple network consisting of a chain of two random tensors. This setup models a multiboundary wormhole. We show that the reflected entanglement spectrum is controlled by representation theory of the Temperley-Lieb (TL) algebra. In the semiclassical limit motivated by holography, the spectrum takes the form of a sum over superselection sectors associated to different irreducible representations of the TL algebra and labelled by a topological index $k\in \mathbb{Z}_{\geq 0}$. Each sector contributes to the reflected entropy an amount $2k \frac{EW}{4G}$ weighted by its probability. We provide a gravitational interpretation in terms of fixed-area, higher-genus multiboundary wormholes with genus $2k-1$ initial value slices. These wormholes appear in the gravitational description of the canonical purification. We confirm the reflected entropy holographic duality away from phase transitions. We also find important non-perturbative contributions from the novel geometries with $k\geq 2$ near phase transitions, resolving the discontinuous transition in $S_R$. Along with analytic arguments, we provide numerical evidence for our results. We comment on the connection between TL algebras, Type II$_1$ von Neumann algebras and gravity.
description: 50 Pages + Appendices, 28 Figures. v2: typo fixed
GreenScaler: Training Software Energy Models With Automatic Test Generation
Creators: Chowdhury, S.
Borle, S.
Romansky, S.
Hindle, Abram
Publisher: name: University of Alberta Library
Year: 2018

Software energy consumption is a performance related non-functional requirement that complicates building software on mobile devices today. Energy hogging applications (apps) are a liability to both the end-user and software developer. Measuring software energy consumption is non-trivial, requiring both equipment and expertise, yet researchers have found that software energy consumption can be modelled. Prior works have hinted that with more energy measurement data we can make more accurate energy models. This data, however, was expensive to extract because it required energy measurement of running test cases (rare) or time consuming manually written tests. In this paper, we show that automatic random test generation with resource-utilization heuristics can be used successfully to build accurate software energy consumption models. Code coverage, although well-known as a heuristic for generating and selecting tests in traditional software testing, performs poorly at selecting energy hungry tests. We propose an accurate software energy model, GreenScaler, that is built on random tests with CPU-utilization as the test selection heuristic. GreenScaler not only accurately estimates energy consumption for randomly generated tests, but also for meaningful developer written tests. Also, the produced models are very accurate in detecting energy regressions between versions of the same app. This is directly helpful for the app developers who want to know if a change in the source code, for example, is harmful for the total energy consumption. We also show that developers can use GreenScaler to select the most energy efficient API when multiple APIs are available for solving the same problem. Researchers can also use our test generation methodology to further study how to build more accurate software energy models.
Additional file 1 of Comparison of four value sets derived using different TTO and DCE approaches: application to the new region-specific PBM, AP-7D
Creators: name: Shiroiwa, Takeru
name: Murata, Tatsunori
name: Morii, Yasuhiro
name: Hoshino, Eri
name: Fukuda, Takashi
Publisher: name: figshare
Year: 2024
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 1.
Deriving instrumental point spread functions from partially occulted images
Creators: name: Hofmeister, Stefan Johann
name: Hahn, Michael
name: Savin, Daniel Wolf
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The point-spread function (PSF) of an imaging system describes the response of the system to a point source. Accurately determining the PSF enables one to correct for the combined effects of focussing and scattering within the imaging system, and thereby enhance the spatial resolution and dynamic contrast of the resulting images. We present a semi-empirical semi-blind methodology to derive a PSF from partially occulted images. We partition the two-dimensional PSF into multiple segments, set up a multi-linear system of equations, and directly fit the system of equations to determine the PSF weight in each segment. The algorithm is guaranteed to converge towards the correct instrumental PSF for a large class of occultations, does not require a predefined functional form of the PSF, and can be applied to a large variety of partially occulted images, such as within laboratory settings, regular calibrations within a production line or in the field, astronomical images of distant clusters of stars, or partial solar eclipse images. We show that the central weight of the PSF, which gives the percentage of photons that are not scattered by the instrument, is accurate to bettern than 1.2%. The mean absolute percentage error between the reconstructed and true PSF is usually between 0.5% and 5% for the entire PSF, between 0.5% and 5% for the PSF core, and between 0.5% and 3% for the PSF tail.
Nonequilibrium Green's function approach to multi-band Cooper-pair transport: linear magnetoresistance effect due to nonunitary superconductivity
Creators: name: Tkachov, G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Many-body transport has emerged as an efficient tool for understanding interaction effects in quantum materials with a multi-band electronic structure. This paper proposes a formula for the two-particle transmission coefficient for Cooper-pair transport between multi-band normal and superconducting materials. The approach employs a tight-binding nonequilibrium Green's function technique, allowing a direct calculation of the two-particle current, without invoking the paradigm of Andreev reflection. As an application of the theory, we demonstrate a low-field linear magnetoresistance effect for superconductors with an induced nonunitary order parameter. These results uncover an unexplored route for detecting unconventional nonunitary superconductivity in quantum materials of current theoretical and experimental interest.
description: 10 pages, 4 figures, version as accepted for publication
‘Verdello’, ‘Verdicchio’ and ‘Verduschia’: an example of integrated multidisciplinary study to clarify grapevine cultivar identity
Creators: name: Crespan, M.
name: Armanni, A.
name: Da Rold, G.
name: De Nardi, B.
name: Gardiman, M.
name: Migliaro, D.
name: Soligo, S.
name: Storchi, P.
Publisher: name: Advances in Horticultural Science
Year: 2013

description: ‘Verdello’, ‘Verdicchio’ and ‘Verduschia’ are registered in the official Italian Catalogue as three distinct grapevine varieties. Twenty-five accessions of these cultivars, encompassing known or presumed synonyms, coming from CRA repositories and from vineyards where they are traditionally cultivated, have been genotyped with eleven SSR markers. For morphological comparison, one accession for each variety has been described with 57 characters of OIV 2009 list; phenological and yield traits have also been recorded. In addition, the phenotypic comparison has been extended to the literature descriptions. The same DNA profile has been obtained for all 25 accessions; moreover, present and historical ampelographic data showed a very high similarity. All this information leads to the conclusion that these three varieties are, in fact, the same cultivar.
description: Advances in Horticultural Science, Vol 26 No 2 (2012)
Interventions to improve antiretroviral therapy adherence among adolescents in low- and middle-income countries: A systematic review of the literature
Creators: name: Silverstein, Hannah
name: Ridgeway, Kathleen
name: Olsen, Patrick
name: Dulli, Lisa S.
name: Santo, Leila Dal
name: McCarraher, Donna R.
name: Murray, Kate R.
name: De Mora, Danielle Darrow
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Globally, an estimated 30% of new HIV infections occur among adolescents (15–24 years), most of whom reside in sub-Saharan Africa. Moreover, HIV-related mortality increased by 50% between 2005 and 2012 for adolescents 10–19 years while it decreased by 30% for all other age groups. Efforts to achieve and maintain optimal adherence to antiretroviral therapy are essential to ensuring viral suppression, good long-term health outcomes, and survival for young people. Evidence-based strategies to improve adherence among adolescents living with HIV are therefore a critical part of the response to the epidemic.
Spin-dependent coherent transport in a double quantum dot system
Creators: name: Petrosyan, L. S.
name: Shahbazyan, T. V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study spin-resolved resonant tunneling in a system of two quantum dots sandwiched between doped quantum wells. In the coherent (Dicke) regime, i.e., when quantum dot separation is smaller than the Fermi wavelength in a two-dimensional electron gas in quantum wells, application of an in-plane magnetic field leads to a pronounced spin-resolved structure of the conductance peak lineshape even for very small Zeeman splitting of the quantum dots' resonant levels. In the presence of electron-gas spin-orbit coupling, this spin-resolved structure gets washed out due to Fermi surface deformation in the momentum space. We also show that Aharonov-Bohm flux penetrating the area enclosed by electron tunneling pathways completely destroys conductance spin structure.
description: 8 pages, 6 figures
Axion electrodynamics: Energy-momentum tensor, and possibilities for experimental tests
Creators: name: Brevik, Iver H.
name: Chaichian, Moshe M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Axion electrodynamics is based upon the Lagrangian of the electromagnetic (EM) field plus its interaction with the axions, and is accordingly a physically open system. It means that the four-divergence of the EM energy-momentum tensor is different from zero, implying in turn that the total EM energy and momentum (when integrated over all space) do not constitute a four-vector. The EM force is in principle accessible to experimental detection, just analogous to what is the case in ordinary electrodynamics. In the first half of this paper the energy-momentum aspects of axion electrodynamics are worked out in general, when the surroundings are allowed to be a medium with constant permittivity and permeability. In the second half, two examples are discussed. The first is a static situation, where a block of uniform material containing axions is exposed to external strong electric and magnetic fields. Assuming the axion amplitude $a(x)$ (i.e. its density) to increase linearly in one direction, we calculate the axion-generated forces. As a second example, we consider axions varying not with position but instead harmonically with time; this is the constellation usually assumed in astrophysics. Assuming a Gaussian profile for the EM wave emitted from the Earth towards an axion cloud in outer space, we make a calculation of the 'axion echo', the return signal.
description: 19 pages latex, slightly extended version. To appear in Int. J. Mod. Phys. A
Rotating $(2+1)$-dimensional Black Holes in Einstein-Maxwell-Dilaton Theory
Creators: name: Karakasis, Thanasis
name: Papantonopoulos, Eleftherios
name: Tang, Zi-Yu
name: Wang, Bin
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider Einstein-Maxwell-Dilaton theory in $(2+1)$-dimensions where the coupling between the scalar field and the Maxwell invariant is the dilatonic coupling $f(ϕ) = \exp (-2αϕ)$ and obtain novel exact rotating black hole solutions. The dilatonic parameter $α$ impacts the metric function, affecting the rotating properties of the black hole, its mass and also its thermodynamics. Calculating the entropy we find that it is always positive and the dilatonic black holes may have higher entropy than the BTZ black hole. Depending on the parameters, the dilatonic BTZ-like black hole may be thermodynamically preferred than the BTZ black hole which is recovered when $α=0$.
description: Accepted for publication in PRD
An embedded system for real-time feedback neuroscience experiments
Creators: name: de Almeida, Lirio Onofre Baptista
name: Matias, Paulo
name: Guariento, Rafael Tuma
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Other Computer Science (cs.OH)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: A complete data acquisition and signal output control system for synchronous stimuli generation, geared towards in vivo neuroscience experiments, was developed using the Terasic DE2i-150 board. All emotions and thoughts are an emergent property of the chemical and electrical activity of neurons. Most of these cells are regarded as excitable cells (spiking neurons), which produce temporally localized electric patterns (spikes). Researchers usually consider that only the instant of occurrence (timestamp) of these spikes encodes information. Registering neural activity evoked by stimuli demands timing determinism and data storage capabilities that cannot be met without dedicated hardware and a hard real-time operational system (RTOS). Indeed, research in neuroscience usually requires dedicated electronic instrumentation for studies in neural coding, brain machine interfaces and closed loop in vivo or in vitro experiments. We developed a complete embedded system solution consisting of a hardware/software co-design with the Intel Atom processor running a free RTOS and a FPGA communicating via a PCIe-to-Avalon bridge. Our system is capable of registering input event timestamps with 1μs precision and digitally generating stimuli output in hard real-time. The whole system is controlled by a Linux-based Graphical User Interface (GUI). Collected results are simultaneously saved in a local file and broadcasted wirelessly to mobile device web-browsers in an user-friendly graphic format, enhanced by HTML5 technology. The developed system is low-cost and highly configurable, enabling various neuroscience experimental setups, while the commercial off-the-shelf systems have low availability and are less flexible to adapt to specific experimental configurations.
description: 17 pages, 11 figures, IV Brazilian Symposium on Computing Systems Engineering
Aerated water irrigation (oxygation) benefits to pineapple yield, water use efficiency and crop health
Creators: name: Dhungel, J.
name: Bhattarai, S.P.
name: Midmore, D.J.
Publisher: name: Advances in Horticultural Science
Year: 2013

description: Pineapple roots need adequate oxygen to function, sustaining growth and yield. The crop is susceptible to soil saturation caused by natural rainfall or irrigation, or even with drip irrigation that creates sustained wetting fronts. Drip and subsurface drip irrigation can develop sustained wetting fronts, particularly in low permeability soils, predisposing plant roots to a low oxygen environment. We evaluated the use of aerated irrigation water “oxygation”, employing Mazzei air injectors which mix air with irrigation (12% air by volume of water) in-line, increasing oxygen concentration in the irrigation water stream. The effect of this treatment was evident in growth, development, and leaf gas exchange parameters. Total fruit yield increased by 44 and 26% whereas industry yield increased by 11 and 6% due to oxygation compared to the control and no irrigation, respectively. High yield was associated with an increase in fruit size and not the number of fruits produced. Phytophthora to the control (4.9%), and without irrigation treatment (10.5%) suggesting that reasonable management of Phytophthora, which is one of the major pathological problems for pineapple production in Australia and elsewhere, can be addressed through aerated water irrigation. Oxygation responses were mediated through root and soil processes involving greater root biomass, root respiration, increased microbial diversity and enhanced soil aeration status.
description: Advances in Horticultural Science, Vol 26 No 1 (2012)
The Unreasonable Effectiveness of Traditional Information Retrieval in Crash Report Deduplication
Creators: Campbell, J.C.
Santos, E.A.
Hindle, Abram
Publisher: name: University of Alberta Library
Year: 2016

Organizations like Mozilla, Microsoft, and Apple are flooded with thousands of automated crash reports per day. Although crash reports contain valuable information for debugging, there are often too many for developers to examine individually. Therefore, in industry, crash reports are often automatically grouped together in buckets. Ubuntu's repository contains crashes from hundreds of software systems available with Ubuntu. A variety of crash report bucketing methods are evaluated using data collected by Ubuntu's Apport automated crash reporting system. The trade-off between precision and recall of numerous scalable crash deduplication techniques is explored. A set of criteria that a crash deduplication method must meet is presented and several methods that meet these criteria are evaluated on a new dataset. The evaluations presented in this paper show that using off-the-shelf information retrieval techniques, that were not designed to be used with crash reports, outperform other techniques which are specifically designed for the task of crash bucketing at realistic industrial scales. This research indicates that automated crash bucketing still has a lot of room for improvement, especially in terms of identifier tokenization
Large invisible decay of a Higgs boson to neutrinos
Creators: name: Seto, Osamu
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We show that the standard model (SM)-like Higgs boson may decay into neutrinos with a sizable decay branching ratio in one well-known two Higgs doublet model, so-called neutrinophilic Higgs model. This could happen if the mass of the lighter extra neutral Higgs boson is smaller than one half of the SM-like Higgs boson mass. The definite prediction of this scenario is that the rate of the SM-like Higgs boson decay into diphoton normalized by the SM value is about 0.9. In the case that a neutrino is Majorana particle, a displaced vertex of right-handed neutrino decay would be additionally observed. This example indicates that a large invisible Higgs boson decay could be irrelevant to dark matter.
description: 13 pages, 4 figures, discussion added, the final journal version
Loss to follow-up before and after initiation of antiretroviral therapy in HIV facilities in Lilongwe, Malawi
Creators: name: Bateganya, Moses
name: Tweya, Hannock
name: Banda, Rebecca
name: Gugsa, Salem T.
name: Gupta, Sundeep
name: Mwafilaso, Johnbosco
name: Oboho, Ikwo Kitefre
name: Munthali, Chimango
name: Rambiki, Ethel
name: Maida, Alice
name: Phiri, Sam
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Although several studies have explored factors associated with loss to follow-up (LTFU) from HIV care, there remains a gap in understanding how these factors vary by setting, volume of patient and patients’ demographic and clinical characteristics. We determined rates and factors associated with LTFU in HIV care Lilongwe, Malawi.
The National Primary Standard of the PTB for Realizing the Unit of the Absorbed Dose Rate to Tissue for Beta Radiation
Creators: name: Böhm, Jürgen
Publisher: name: Physikalisch-Technische Bundesanstalt (PTB)
Year: 2019
Subjects: Dosimetry
Beta radiation
Extrapolation chamber
Primary standard Correction factors

description: PTB-Bericht Dos-13
description: The national primary standard of the PIB with its extrapolation chambers and associated equipment is described. The evaluation procedure including all the corrections of the measured values is discussed in detail. Measurement uncertainties are stated for beta ray sources of the radionuclides (90Sr + 90Y), 204Tl, and 147Pm. An intercomparison with the NPL of beta ray sources of these radionuclides shows that the results agree within the uncertainties claimed.
Social Media’s Role During Identity Changes Related to Major Life Events
Creators: name: Corvite, Shanley
name: Zhang, Ben Zefeng
name: Haimson, Oliver L.
Publisher: name: ACM
Year: 2022
Subjects: subject: life transitions
subject: identity
subject: online networks
subject: online communities
subject: social media
subject: social media affordances
subject: Information Science
subject: Social Sciences

description: Major life events can cause great upheaval in one’s life. Many people perceive their identities to change due to major life events. During identity shifts, impression management and self-presentation, online communities, and social media affordances can allow individuals to better facilitate their experiences. To examine how people perceive their identity to change during major events and how they use social media in the process, we interviewed 28 participants who recently experienced major life events. We found that many people perceived their identity to change through various avenues that they felt were important to their identity: mental processes, identity roles, and identity fulfillment. However, some people perceive their identity to be maintained rather than changed. During identity changes or maintenance, participants utilized impression management and self-presentation to curate their online presence. Participants also used online communities to build relationships with similar others or virtual friends and enable more connections via what we call the domino effect. Social media sites also provided the affordances of editability, visibility control, and spreadability, which can help ease life transition and identity change processes.
Jet Broadening in Flowing Matter -- Resummation
Creators: name: Andres, Carlota
name: Dominguez, Fabio
name: Sadofyev, Andrey V.
name: Salgado, Carlos A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work, we obtain the leading corrections to the jet momentum broadening distribution in a QCD medium arising from the transverse flow of the matter. We first derive the single-particle propagator of a highly energetic parton resumming its multiple interactions with the homogeneous flowing matter, explicitly keeping the leading subeikonal flow terms. Then, we use this propagator to obtain the jet broadening distribution and its leading moments. We show that this distribution becomes anisotropic in the presence of transverse flow, since its odd moments are generally non-zero and proportional to the transverse velocity of the medium. Finally, we evaluate several odd moments, which we compare to the corresponding results at first order in opacity, showing that accounting for multiple in-medium scatterings is essential to describe some observables in dense nuclear matter.
description: 29 pages, 2 figures, v2: journal version, references added
Selective excitation of plasmons superlocalized at sharp perturbations of metal nanoparticles
Creators: name: Gorkunov, M. V.
name: Sturman, B. I.
name: Podivilov, E. V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Sharp metal corners and tips support plasmons localized on the scale of the curvature radius -- superlocalized plasmons. We analyze plasmonic properties of nanoparticles with small and sharp corner- and tip-shaped surface perturbations in terms of hybridization of the superlocalized plasmons, which frequencies are determined by the perturbations shape, and the ordinary plasmons localized on the whole particle. When the frequency of a superlocalized plasmon gets close to that of the ordinary plasmon, their strong hybridization occurs and facilitates excitation of an optical hot-spot near the corresponding perturbation apex. The particle is then employed as a nano-antenna that selectively couples the free-space light to the nanoscale vicinity of the apex providing precise local light enhancement by several orders of magnitude.
TPHO: a time-dependent photoionisation model for AGN outflows
Creators: name: Rogantini, Daniele
name: Mehdipour, Missagh
name: Kaastra, Jelle
name: Costantini, Elisa
name: Juráňová, Anna
name: Kara, Erin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Outflows in active galactic nuclei (AGN) are considered a promising candidate for driving AGN feedback at large scales. However, without information on the density of these outflows, we cannot determine how much kinetic power they are imparting to the surrounding medium. Monitoring the response of the ionisation state of the absorbing outflows to changes in the ionising continuum provides the recombination timescale of the outflow, which is a function of the electron density. We have developed a new self-consistent time-dependent photoionisation model, TPHO, enabling the measurement of the plasma density through time-resolved X-ray spectroscopy. The algorithm solves the full-time-dependent energy and ionisation balance equations in a self-consistent fashion for all the ionic species. The model can therefore reproduce the time-dependent absorption spectrum of ionized outflows responding to changes in the ionizing radiation of the AGN. We find that when the ionised gas is in a non-equilibrium state its transmitted spectra are not accurately reproduced by standard photoionisation models. Our simulations with the current X-ray grating observations show that the spectral features identified as a multiple-components warm absorber, might be in fact features of a time-changing warm absorber and not distinctive components. The TPHO model facilitates accurate photoionisation modelling in the presence of a variable ionising source, thus providing constraints on the density and in turn the location of the AGN outflows. Ascertaining these two parameters will provide important insight into the role and impact of ionised outflows in AGN feedback.
description: 19 pages, 13 figures, accepted for publication by Apj on 07-Oct-22
Characterizing Energy-Aware Software Projects: Are They Different?
Creators: Chowdhury, S.
Hindle, Abram
Publisher: name: University of Alberta Library
Year: 2016

The improvement in battery technology for battery-driven devices is insignificant compared to their computing ability. In spite of the overwhelming advances in processing ability, adoption of sophisticated applications is hindered by the fear of shorter battery life. This is one of the several reasons software developers are becoming conscious of writing energy efficient code.

Research has been conducted to model software energy consumption, to reduce energy drains, and to understand developers expertise on energy efficiency. In this paper, however, we investigate the nature of energy-aware software projects. We observed that projects concerned with energy issues are larger and more popular than the projects that do not address energy consumption. Energy related code changes are larger than others (e.g., bug fixes). In addition, our initial results suggest that energy efficiency is mostly addressed on certain platforms and applications.
Catalogue of X-ray spectra and their characteristic data : ISO and DIN radiation qualities, therapy and diagnostic radiation qualities, unfiltered X-ray spectra
Creators: name: Ankerhold, Ulrike
Publisher: name: Physikalisch-Technische Bundesanstalt (PTB)
Year: 2019
Subjects: Spectrometry
Photon spectra
Conversion coefficients

description: PTB-Bericht Dos-34
description: The pulse height spectra of the radiation qualities of the low air-kerma rate, narrow-spectrum, wide-spectrum and high air-kerma rate ISO series, the A-, B- and C-series according to the German DIN standard 6818-1, several diagnostic and therapy radiation qualities and unfiltered X-ray spectra were measured using a Ge spectrometer and a special experimental set-up. The spectra were unfolded to obtain the fluence spectra. The values for the characteristic parameters (first and second half-value layer, mean photon energy, 10% percentile, kerma factor, conversion coefficients from air kerma, Ka, to the operational radiation protection quantities Hp(10), Hp(0,07), H*(10) and H'(0,07, ) rΩ ) were determined for each radiation quality and each unfiltered X-ray spectrum using these fluence spectra. All data given are normalised to reference conditions. For each radiation quality and each unfiltered X-ray spectrum the fluence spectrum is shown in a graph together with two other curves. One curve is the fluence spectrum weighted with the energy-dependent kerma factors; the second is the fluence spectrum weighted with the energy-dependent conversion coefficients from fluence to personal dose equivalent, Hp(10).
Velocity asymmetry of Dzyaloshinskii domain walls in the creep and flow regimes
Creators: name: Vanatka, M.
name: Rojas-Sanchez, J. -C.
name: Vogel, J.
name: Bonfim, M.
name: Thiaville, A.
name: Pizzini, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have carried out measurements of domain wall dynamics in a Pt/Co/GdOx(t) wedge sample with perpendicular magnetic anisotropy. When driven by an easy-axis field Hz in the presence of an in-plane field Hx, the domain wall expansion along x is anisotropic, as expected for samples presenting Dzyaloshinskii-Moriya interaction. In the creep regime, the sign and the value of the domain wall velocity asymmetry changes along the wedge. We show that in our samples the domain wall speed vs. Hx curves in the creep regime cannot be explained simply in terms of the variation of the domain wall energy with Hx, as suggested by previous works. For this reason the strength and the sign of the Dzyaloshinskii-Moriya interaction (DMI) cannot be extracted from these measurements. To obtain reliable information on the DMI strength using magnetic field-induced domain wall dynamics, measurements have been performed with high fields, bringing the DW close to the flow regime of propagation. In this case, the large values of DMI are coherent with those obtained from current-driven domain wall dynamics.
description: 12 pages, 5 figures
Analysis of the $X(6600)$, $X(6900)$, $X(7300)$ and related tetraquark states with the QCD sum rules
Creators: name: Wang, Zhi-Gang
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we re-investigate the mass spectrum of the ground state, first, second and third radial excited states of the diquark-antidiquark type fully-charm tetraquark states with the QCD sum rules plus Regge trajectories. We take account of the CMS and ATLAS experimental data and preform a self-consistent analysis, then try to make possible assignments of the $X(6600)$, $X(6900)$ and $X(7300)$ in the picture of tetraquark states with the $J^{PC}=0^{++}$ or $1^{+-}$.
description: 14 pages, 2 figures. arXiv admin note: text overlap with arXiv:2006.13028
The effect of facility characteristics on patient safety, patient experience, and service availability for procedures in non-hospital-affiliated outpatient settings: A systematic review
Creators: name: Roberts, Sarah C. M.
name: Nicholson, Wanda K.
name: Sobota, Mindy
name: Battistelli, Molly F.
name: Urman, Richard D.
name: Berglas, Nancy F.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Over recent decades, numerous medical procedures have migrated out of hospitals and into freestanding ambulatory surgery centers (ASCs) and physician offices, with possible implications for patient outcomes. In response, states have passed regulations for office-based surgeries, private organizations have established standards for facility accreditation, and professional associations have developed clinical guidelines. While abortions have been performed in office setting for decades, states have also enacted laws requiring that facilities that perform abortions meet specific requirements. The extent to which facility requirements have an impact on patient outcomes—for any procedure—is unclear.
Cut-Off Kinks
Creators: name: Evslin, Jarah
name: Royston, Andrew B.
name: Zhang, Baiyang
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We answer the question: If a vacuum sector Hamiltonian is regularized by an energy cutoff, how is the one-kink sector Hamiltonian regularized? We find that it is not regularized by an energy cutoff, indeed normal modes of all energies are present in the kink Hamiltonian, but rather the decomposition of the field into normal mode operators yields coefficients which lie on a constrained surface that forces them to become small for energies above the cutoff. This explains the old observation that an energy cutoff of the kink Hamiltonian leads to an incorrect one-loop kink mass. To arrive at our conclusion, we impose that the regularized kink sector Hamiltonian is unitarily equivalent to the regularized vacuum sector Hamiltonian. This condition implies that the two regularized Hamiltonians have the same spectrum and so guarantees that the kink Hamiltonian yields the correct kink mass.
description: 21+15 pages, 1 PDF figure
Crop load manipulation and fruit cracking in sweet cherry (Prunus avium L.)
Creators: name: Measham, P.F.
name: Bound, S.A.
name: Gracie, A.J.
name: Wilson, S.J.
Publisher: name: Advances in Horticultural Science
Year: 2013

description: Yield loss from rain-induced fruit cracking is a perpetual risk associated with the production of sweet cherries, and is difficult to manage due to the unpredictability of fruit responses to late season rainfall. The aim of this five-year study was to investigate the relationship between fruit crop load and incidence of cracking. The results showed a negative correlation between crop load and incidence of fruit cracking, and it was found in both natural and manipulated crop load trials for all varieties studied and in all seasons assessed. The effect of crop load on final cracking levels are deter- mined post cell division. Results from this study showed that fruit width was positively correlated with cuticular cracking but, contrary to what has been purported in literature, no relationship between concentration of soluble sugars or firmness with the incidence of cracking was found. This study has confirmed that crop load should be a major consideration in orchard practices in developing strategies to manage fruit cracking.
description: Advances in Horticultural Science, Vol 26 No 1 (2012)
Separate Online Networks During Life Transitions: Support, Identity, and Challenges in Social Media and Online Communities
Creators: name: Zhang, Ben Zefeng
name: Liu, Tianxiao
name: Corvite, Shanley
name: Andalibi, Nazanin
name: Haimson, Oliver L.
Publisher: name: ACM
Year: 2022
Subjects: subject: life transitions
subject: identity
subject: online networks
subject: online communities
subject: social media
subject: Information Science
subject: Social Sciences

description: Some life transitions can be difficult to discuss on social media, especially with networks of known ties, due to challenges such as stigmatization. Separate online networks can provide alternative spaces to discuss life transitions. To understand why and how people turn to separate networks, we interviewed 28 participants who had recently experienced life transitions. While prior research tends to focus on one life transition in isolation, this work examines social media sharing behaviors across a wide variety of life transitions. We describe how people often turn to separate networks during life transitions due to challenges faced in networks of known ties, yet encounter new challenges such as difficulty locating these networks. We describe support from waiting contributors and virtual friends. Finally, we provide insight into how online separate networks can be better designed through enhancing search functionality, promoting contribution, and providing context-sensitive templates for sharing in online spaces.