cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Correlates of condom use among sexually experienced secondary school male students in Nairobi, Kenya
Creators: name: Mitchell, Ellen MH
name: Halpern, Carolyn Tucker
name: Adimora, Ada
name: Yotebieng, Marcel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: This study aimed to examine perceptual factors associated with condom use, and the relationship between condom use and the timing of sexual debut, among male secondary-school students in Nairobi, Kenya. Data are from the TeenWeb study, a school-based project that used the World Wide Web to assess the health needs of secondary-school students, and tested the web's utility as a teaching and research modality. Analyses are based on 214 sexually experienced males aged 14 to 20 years who completed web-based questionnaires about their sexual attitudes and behaviour. Results indicate that students did not see themselves as susceptible to HIV/AIDS and believed condom effectiveness in preventing HIV to be low. Consequently, only a marginal association was found between agreeing that buying condoms is embarrassing and condom use at first sexual intercourse. However, contrary to expectation, agreeing that condoms often break (almost half of participants) was associated with a higher likelihood of condom use at first sex. Each year of delay in sexual debut increased the likelihood of using a condom at first sex by 1.44 times. In turn, having used a condom at first sex increased the likelihood of using one at the most recent sex by 4.81 times, and elevated general condom use (“most or all the time”) by 8.76 times. Interventions to increase awareness about the role of condoms in preventing HIV, delay sexual initiation, and teach proper condom use among secondary-school students in Nairobi are needed.
The Significance of Machine Learning in Clinical Disease Diagnosis: A Review
Creators: name: Rahman, S M Atikur
name: Ibtisum, Sifat
name: Bazgir, Ehsan
name: Barai, Tumpa
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The global need for effective disease diagnosis remains substantial, given the complexities of various disease mechanisms and diverse patient symptoms. To tackle these challenges, researchers, physicians, and patients are turning to machine learning (ML), an artificial intelligence (AI) discipline, to develop solutions. By leveraging sophisticated ML and AI methods, healthcare stakeholders gain enhanced diagnostic and treatment capabilities. However, there is a scarcity of research focused on ML algorithms for enhancing the accuracy and computational efficiency. This research investigates the capacity of machine learning algorithms to improve the transmission of heart rate data in time series healthcare metrics, concentrating particularly on optimizing accuracy and efficiency. By exploring various ML algorithms used in healthcare applications, the review presents the latest trends and approaches in ML-based disease diagnosis (MLBDD). The factors under consideration include the algorithm utilized, the types of diseases targeted, the data types employed, the applications, and the evaluation metrics. This review aims to shed light on the prospects of ML in healthcare, particularly in disease diagnosis. By analyzing the current literature, the study provides insights into state-of-the-art methodologies and their performance metrics.
description: 8 pages
title: Successful intervention for young men who have harmed sexually : a fifty year journey to establishing an outstanding residential service
Creators: name: Clarke, Peter
name: Brock-Hollinshead, Sue
Publisher: name: Strathprints - University of Strathclyde
Year: 2017

description: This article maps the development of a Quaker led residential Therapeutic Community that specialises in the treatment of young men who have sexually harmed. It details the theoretical model based on Rapoport's Four Cornerstones. The intervention model was evaluated using a longitudinal outcome research project spanning over 10 years. The researchers noted a substantial and dramatic reduction in sexual and non-sexual recidivism when the comparison group's outcomes were considered. The long-term life trajectories of the young people leaving the service led to further service development. Every young person completing the two year programme is offered an 18 month transitions service that is free at point of delivery.
The surface signature of the tidal dissipation of the core in a two-layer planet
Creators: name: Remus, F.
name: Mathis, S.
name: Zahn, J. -P.
name: Lainey, V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Tidal dissipation, which is directly linked to internal structure, is one of the key physical mechanisms that drive systems evolution and govern their architecture. A robust evaluation of its amplitude is thus needed to predict evolution time for spins and orbits and their final states. The purpose of this paper is to refine recent model of the anelastic tidal dissipation in the central dense region of giant planets, commonly assumed to retain a large amount of heavy elements, which constitute an important source of dissipation. The previous paper evaluated the impact of the presence of the static fluid envelope on the tidal deformation of the core and on the associated anelastic tidal dissipation, through the tidal quality factor Qc. We examine here its impact on the corresponding effective anelastic tidal dissipation, through the effective tidal quality factor Qp. We show that the strength of this mechanism mainly depends on mass concentration. In the case of Jupiter- and Saturn-like planets, it can increase their effective tidal dissipation by, around, a factor 2.4 and 2 respectively. In particular, the range of the rheologies compatible with the observations is enlarged compared to the results issued from previous formulations. We derive here an improved expression of the tidal effective factor Qp in terms of the tidal dissipation factor of the core Qc, without assuming the commonly used assumptions. When applied to giant planets, the formulation obtained here allows a better match between the an elastic core's tidal dissipation of a two-layer model and the observations.
description: 5 pages, 2 figures, Accepted for publication in Astronomy & Astrophysics
Molecular theory of anomalous diffusion - Application to Fluorescence Correlation Spectroscopy
Creators: name: Boon, Jean Pierre
name: Lutsko, James F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The nonlinear theory of anomalous diffusion is based on particle interactions giving an explicit microscopic description of diffusive processes leading to sub-, normal, or super-diffusion as a result competitive effects between attractive and repulsive interactions. We present the explicit analytical solution to the nonlinear diffusion equation which we then use to compute the correlation function which is experimentally measured by correlation spectroscopy. The theoretical results are applicable in particular to the analysis of fluorescence correlation spectroscopy of marked molecules in biological systems. More specifically we consider the case of fluorescently labeled lipids and we find that the nonlinear correlation spectrum reproduces very well the experimental data indicating sub-diffusive molecular motion of lipid molecules in the cell membrane.
description: 13 pages including one figure; Submitted to the Journal of Statistical Physics. arXiv admin note: text overlap with arXiv:1302.5574
Geometric Control of a Quadrotor UAV Transporting a Payload Connected via Flexible Cable
Creators: name: Goodarzi, Farhad A.
name: Lee, Daewon
name: Lee, Taeyoung
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We derived a coordinate-free form of equations of motion for a complete model of a quadrotor UAV with a payload which is connected via a flexible cable according to Lagrangian mechanics on a manifold. The flexible cable is modeled as a system of serially-connected links and has been considered in the full dynamic model. A geometric nonlinear control system is presented to exponentially stabilize the position of the quadrotor while aligning the links to the vertical direction below the quadrotor. Numerical simulation and experimental results are presented and a rigorous stability analysis is provided to confirm the accuracy of our derivations. These results will be particularly useful for aggressive load transportation that involves large deformation of the cable.
description: arXiv admin note: substantial text overlap with arXiv:1309.6717
ENDANGERED HUMAN RACE IN NEPAL
Creators: name: Pradhan, Durga
Publisher: name: figshare
Year: 2022
Subjects: subject: 160101 Anthropology of Development
subject: FOS: Sociology

description: The Nepal is the land of several races having the mountainous peaks to the plains, located in the South Asian region of the world. The paper deals with the nomadic race, Raute, of Nepal with some information for the documentation. Raute is a community having sub clans, Shani, Rajput, Kalial, Salial, Sam Thakuri etc and their own customs and language. They wear their unique dresses. The woman wears vibrant and colourful outfit and ornaments whereas the male wears off- white clothing. There is no caste discrimination and hierarchy. They live in the forest using the forest resources and have the knowledge of forest produces and items. They often used to make the wooden utilities, locally known as Mulos, pirra, Hocus, Haluad etc. These are their produces used for the daily uses. In recent past, the forest products of Raute were in demand but nowadays, their market reduced due to less demand. The lifestyle of Raute is forest dependent who never live near the human civilized habitat in the past. As the population of native place of Nepal is increasing, the forest land areas decrease so the Raute community can be seen near the villages of Nepal.
QSAR analysis of the toxicity of nitroaromatics in Tetrahymena pyriformis : structural factors and possible modes of action
Creators: name: Golius, A.
name: Kuz’mina, A.V.
name: Muratov, N.N.
name: Gorb, L.G.
name: Leszczynski, J.
name: Varlamova, E.V.
name: Artemenko, A.G.
name: Muratov, E.N.
name: Kuz’min, V.E.
name: Hill, F.C.
name: Tropsha, A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: The Hierarchical Technology for Quantitative Structure - Activity Relationships (HiT QSAR) was applied to 95 diverse nitroaromatic compounds (including some widely known explosives) tested for their toxicity (50% inhibition growth concentration, IGC50) against the ciliate Tetrahymena pyriformis. The dataset was divided into subsets according to putative mechanisms of toxicity. Classification and Regression Trees (CART) approach implemented within HiT QSAR has been used for prediction of mechanism of toxicity for new compounds. The resulting models were shown to have ~80% accuracy for external datasets indicating that the mechanistic dataset division was sensible. Then, Partial Least Squares (PLS) statistical approach was used for the development of 2D QSAR models. Validated PLS models were explored to (i) elucidate the effects of different substituents in nitroaromatic compounds on toxicity; (ii) differentiate compounds by probable mechanisms of toxicity based on their structural descriptors; (iii) analyze the role of various physical-chemical factors responsible for compounds’ toxicity. Models were interpreted in terms of molecular fragments promoting or interfering with toxicity. It was also shown that mutual influence of substituents in benzene ring plays the determining role in toxicity variation. Although chemical mechanism based models were statistically significant and externally predictive (R2ext=0.64 for the external set of 63 nitroaromatics identified after all calculations have been completed), they were also shown to have limited coverage (57% for modeling and 76% for external set).
ENDANGERED HUMAN RACE IN NEPAL
Creators: name: Pradhan, Durga
Publisher: name: figshare
Year: 2021
Subjects: subject: 160101 Anthropology of Development
subject: FOS: Sociology

description: The Nepal is the land of several races having the mountainous peaks to the plains, located in the South Asian region of the world. The paper deals with the nomadic race, Raute, of Nepal with some information for the documentation. Raute is a community having sub clans, Shani, Rajput, Kalial, Salial, Sam Thakuri etc and their own customs and language. They wear their unique dresses. The woman wears vibrant and colourful outfit and ornaments whereas the male wears off- white clothing. There is no caste discrimination and hierarchy. They live in the forest using the forest resources and have the knowledge of forest produces and items. They often used to make the wooden utilities, locally known as Mulos, pirra, Hocus, Haluad etc. These are their produces used for the daily uses. In recent past, the forest products of Raute were in demand but nowadays, their market reduced due to less demand. The lifestyle of Raute is forest dependent who never live near the human civilized habitat in the past. As the population of native place of Nepal is increasing, the forest land areas decrease so the Raute community can be seen near the villages of Nepal.
Anisotropic Quantum Confinement Effect and Electric Control of Surface States in Dirac Semimetal Nanostructures
Creators: name: Xiao, Xianbo
name: Yang, Shengyuan A.
name: Liu, Zhengfang
name: Li, Huili
name: Zhou, Guanghui
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The recent discovery of Dirac semimetals represents a new achievement in our fundamental understanding of topological states of matter. Due to their topological surface states, high mobility, and exotic properties associated with bulk Dirac points, these new materials have attracted significant attention and are believed to hold great promise for fabricating novel topological devices. For nanoscale device applications, effects from finite size usually play an important role. In this report, we theoretically investigate the electronic properties of Dirac semimetal nanostructures. Quantum confinement generally opens a bulk band gap at the Dirac points. We find that confinement along different directions shows strong anisotropiceffects. In particular, the gap due to confinement along vertical c-axis shows a periodic modulation, which is absent for confinement along horizontal directions. We demonstrate that the topological surface states could be controlled by lateral electrostatic gating. It is possible to generate Rashba-like spin splitting for the surface states and to shift them relative to the confinement-induced bulk gap. These results will not only facilitate our fundamental understanding of Dirac semimetal nanostructures, but also provide useful guidance for designing all-electrical topological spintronics devices.
description: 23 pages, 5 figures
Enzymes for consumer products to achieve climate neutrality
Creators: name: Molina-Espeja, Patricia
name: Sanz-Aparicio, Julia
name: Golyshin, Peter N.
name: Robles-Martín, Ana
name: Guallar, Víctor
name: Beltrametti, Fabrizio
name: Müller, Markus
name: Yakimov, Michail M.
name: Modregger, Jan
name: Van Logchem, Moniec
name: Corvini, Philippe
name: Shahgaldian, Patrick
name: Degering, Christian
name: Wieland, Susanne
name: Timm, Anne
name: De Carvalho, Carla C. C. R.
name: Re, Ilaria
name: Daniotti, Sara
name: Thies, Stephan
name: Jaeger, Karl-Erich
name: Chow, Jennifer
name: Streit, Wolfgang R.
name: Lottenbach, Roland
name: Rösch, Rainer
name: Ansari, Nazanin
name: Ferrer, Manuel
Publisher: name: Oxford University Press
Year: 2023
Subjects: subject: 600 - Technik, Medizin, angewandte Wissenschaften

description: Today, the chemosphere’s and biosphere’s compositions of the planet are changing faster than experienced during the past thousand years. CO2 emissions from fossil fuel combustion are rising dramatically, including those from processing, manufacturing and consuming everyday products; this rate of greenhouse gas emission (36.2 gigatons accumulated in 2022) is raising global temperatures and destabilizing the climate, which is one of the most influential forces on our planet. As our world warms up, our climate will enter a period of constant turbulence, affecting more than 85% of our ecosystems, including the delicate web of life on these systems, and impacting socioeconomic networks. How do we deal with the green transition to minimize climate change and its impacts while we are facing these new realities? One of the solutions is to use renewable natural resources. Indeed, nature itself, through the working parts of its living systems, the enzymes, can significantly contribute to achieve climate neutrality and good ecological/biodiversity status. Annually they can help decreasing CO2 emissions by 1–2.5 billion-tons, carbon demand by about 200 million-tons, and chemical demand by about 90 million-tons. With current climate change goals, we review the consequences of climate change at multiple scales and how enzymes can counteract or mitigate them. We then focus on how they mobilize sustainable and greener innovations in consumer products that have a high contribution to global carbon emissions. Finally, key innovations and challenges to be solved at the enzyme and product levels are discussed.
title: Radiation Damage to GaAs Solar Cells Including Isotropic Effects
Creators: name: Stock, Larry Victor
Publisher: name: Old Dominion University Libraries
Year: 1984

description: A model is developed for the short circuit current of a GaAs solar cell due to radiation (proton or electron) induced defects in the crystal structure. This model is verified by a comparison with proton and electron irradiation results. For electron radiation and energetic protons (energy> 10 MeV), it is found that the damage in the crystal is independent of the angle of incidence. On the other hand, for lower energy proton radiation, the damage as a function of cell thickness is highly dependent on incident angle and energy. The cell's response to low energy protons is strongly dependent on the depth of the cell's junction. The concept of an equivalent electron fluence for specific radiation fluences is examined and equivalent electron fluence ratios are derived for monoenergetic proton beams. The formalism for this concept is applied to three radiation fluences which are encountered in space; they are solar cosmic ray {SCR), radiation encountered at geosynchronous orbit (electron and proton). and a combination of these two fluences. These three fluences are used in the model to find a cover-glass thickness to increase the usefulness of GaAs solar cells for space-power applications. It is found that a cover-glass is ineffective in reducing electron radiation damage.
The generalized t-V model in one dimension
Creators: name: Szyniszewski, Marcin
name: Burovski, Evgeni
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We develop a systematic strong coupling approach for studying an extended t-V model with interactions of a finite range. Our technique is not based on the Bethe ansatz and is applicable to both integrable and non-integrable models. We illustrate our technique by presenting analytic results for the ground state energy (up to order 7 in t/V), the current density and density-density correlations for integrable and non-integrable models with commensurate filling factors. We further present preliminary numerical results for incommensurate non-integrable models.
description: 6 pages, to appear in J. Phys.: Conf. Ser. (SCES2014)
Intrinsic synchronization of an array of spin-torque oscillators driven by the spin-Hall effect
Creators: name: Siracusano, Giulio
name: Tomasello, Riccardo
name: Puliafito, Vito
name: Giordano, Anna
name: Azzerboni, Bruno
name: La Corte, Aurelio
name: Carpentieri, Mario
name: Finocchio, Giovanni
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: This paper micromagnetically studies the magnetization dynamics driven by the spin-Hall effect in a Platinum/Permalloy bi-layer. For a certain field and current range, the excitation of a uniform mode, characterized by a power with a spatial distribution in the whole ferromagnetic cross section, is observed. We suggest to use the ferromagnet of the bi-layer as basis for the realization of an array of spin-torque oscillators (STOs): the Permalloy ferromagnet will act as shared free layer, whereas the spacers and the polarizers are built on top of it. Following this strategy, the frequency of the uniform mode will be the same for the whole device, creating an intrinsic synchronization. The synchronization of an array of parallely connected STOs will allow to increase the output power, as necessary for technological applications.
description: 7 pages, 4 figures
Recollection of childhood abdominal pain in adults with functional gastrointestinal disorders
Creators: name: Shah, Nilay D.
name: Zinsmeister, Alan R.
name: Chitkara, Denesh K.
name: Locke, G. Richard
name: Talley, Nicholas J.
name: Schleck, Cathy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: It is hypothesized that adults who can recall abdominal pain as children are at risk of experiencing a functional gastrointestinal disorder (FGID), but this is not specific to any particular FGID. The aim of this study was to evaluate the association between recollecting abdominal pain as a child and experiencing a FGID.
Self-gravitating elastic bodies
Creators: name: Andersson, Lars
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Extended objects in GR are often modelled using distributional solutions of the Einstein equations with point-like sources, or as the limit of infinitesimally small "test" objects. In this note, I will consider models of finite self-gravitating extended objects, which make it possible to give a rigorous treatment of the initial value problem for (finite) extended objects.
description: 16 pages. Based on a talk given at the 2013 WE-Heraeus seminar on "Equations of motion in relativistic gravity"
Gender differences in the incidence and prevalence of patellofemoral pain syndrome: Epidemiology of patellofemoral pain
Creators: name: Boling, M.
name: Beutler, A.
name: Pyne, S.
name: Padua, D.
name: Guskiewicz, K.
name: Marshall, S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: The purpose of this investigation was to determine the association between gender and the prevalence and incidence of patellofemoral pain syndrome (PFPS). One thousand five hundred and twenty-five participants from the United States Naval Academy (USNA) were followed for up to 2.5 years for the development of PFPS. Physicians and certified athletic trainers documented the cases of PFPS. PFPS was defined as retropatellar pain during at least two of the following activities: ascending/descending stairs, hopping/jogging, prolonged sitting, kneeling, and squatting, negative findings on examination of knee ligament, menisci, bursa, and synovial plica, and pain on palpation of either the patellar facets or femoral condyles. Poisson and logistic regressions were performed to determine the association between gender and the incidence and prevalence of PFPS, respectively. The incidence rate for PFPS was 22/1000 person-years. Females were 2.23 times (95% CI: 1.19, 4.20) more likely to develop PFPS compared with males. While not statistically significant, the prevalence of PFPS at study enrollment tended to be higher in females (15%) than in males (12%) (P50.09). Females at the USNA are significantly more likely to develop PFPS than males. Additionally, at the time of admission to the academy, the prevalence of PFPS was not significantly different between genders.
Weighted Fair Multicast Multigroup Beamforming under Per-antenna Power Constraints
Creators: name: Christopoulos, Dimitrios
name: Chatzinotas, Symeon
name: Ottersten, Bjorn
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: A multi-antenna transmitter that conveys independent sets of common data to distinct groups of users is considered. This model is known as physical layer multicasting to multiple co-channel groups. In this context, the practical constraint of a maximum permitted power level radiated by each antenna is addressed. The per-antenna power constrained system is optimized in a maximum fairness sense with respect to predetermined quality of service weights. In other words, the worst scaled user is boosted by maximizing its weighted signal-to-interference plus noise ratio. A detailed solution to tackle the weighted max-min fair multigroup multicast problem under per-antenna power constraints is therefore derived. The implications of the novel constraints are investigated via prominent applications and paradigms. What is more, robust per-antenna constrained multigroup multicast beamforming solutions are proposed. Finally, an extensive performance evaluation quantifies the gains of the proposed algorithm over existing solutions and exhibits its accuracy over per-antenna power constrained systems.
description: Under review in IEEE Transactions in Signal Processing
The Lyman-alpha Reference Sample: I. Survey outline and first results for Markarian 259
Creators: name: Östlin, Göran
name: Hayes, Matthew
name: Duval, Florent
name: Sandberg, Andreas
name: Rivera-Thorsen, Thoger
name: Marquart, Thomas
name: Orlitova, Ivana
name: Adamo, Angela
name: Melinder, Jens
name: Guaita, Lucia
name: Atek, Hakim
name: Cannon, John M.
name: Gruyters, Pieter
name: Herenz, Edmund Christian
name: Kunth, Daniel
name: Laursen, Peter
name: Mas-Hesse, J. Miguel
name: Micheva, Genoveva
name: Pardy, Hector Oti-Floranes Stephen A.
name: Roth, Martin M.
name: Schaerer, Daniel
name: Verhamme, Anne
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences
subject: 85-05

description: The Lyman-alpha reference sample (LARS) is a program with the Hubble Space Telescope (HST) that provides a sample of local universe laboratory galaxies in which to study the astrophysics of the visibility and strength of the Lyman-alpha (Lya) line of hydrogen. This article presents an overview of the survey, its selection function and HST imaging observations. The sample was selected from the GALEX+SDSS catalogue at z=0.028-0.19, in order to allow Lya to be captured with combinations of long pass filters in the Solar Blind Channel (SBC) of HST/ACS. In addition, LARS utilises Halpha and Hbeta narrow, and U, B, i broad-band imaging with ACS and WFC3. In order to study galaxies in which large numbers of Lya photons are produced we demanded an Halpha equivalent width > 100Å. The sample of 14 galaxies covers far UV (FUV) luminosities that overlaps with those of high-z Lya emitters and Lyman Break Galaxies (LBGs). We present the reduction steps used to obtain the Lya images, including our LARS eXtraction software (LaXs) which utilises pixel-by-pixel spectral synthesis fitting to subtract the continuum at Lya. We demonstrate that the use of SBC long pass filters dramatically increase the signal to noise compared to the nominal Lya filter in SBC. To exemplify, we present results for Mrk 259. This irregular galaxy shows extended but strongly asymmetric Lya emission. Spectroscopy from HST/COS show a moderate outflow in the neutral ISM and an asymmetric Lya profile. Radiative transfer modeling is able to reproduce the Lya line profile, confirming the presence of an outflow. The integrated photometry provides a Lya luminosity of 1.3E42 erg/s an equivalent width W(Lya) =45Å and a FUV absolute magnitude -19.2. Mrk 259 would hence be detectable in high-z Lya and LBG surveys. The total Lya escape fraction is 12%, similar to that observed at z>4. (shortened)
description: To appear in ApJ
title: Anionic N₁₈ Macrocycles and a Polynitrogen Double Helix in Novel Yttrium Polynitrides YN₆ and Y₂N₁₁ at 100 GPa
Creators: name: Aslandukov, Andrey
name: Trybel, Florian
name: Aslandukova, Alena
name: Laniel, Dominique
name: Fedotenko, Timofey
name: Khandarkhaeva, Saiana
name: Aprilis, Georgios
name: Giacobbe, Carlotta
name: Lawrence Bright, Eleanor
name: Abrikosov, Igor A.
name: Dubrovinsky, Leonid
name: Dubrovinskaia, Natalia
Publisher: name: University of Bayreuth
Year: 2022
Subjects: subject: High-Pressure Chemistry
subject: Inorganic Double Helix
subject: Macrocycles
subject: Polynitrides
subject: 530

description: Two novel yttrium nitrides, YN₆ and Y₂N₁₁, were synthesized by direct reaction between yttrium and nitrogen at 100 GPa and 3000 K in a laser-heated diamond anvil cell. High-pressure synchrotron single-crystal X-ray diffraction revealed that the crystal structures of YN₆ and Y₂N₁₁ feature a unique organization of nitrogen atoms—a previously unknown anionic N₁₈ macrocycle and a polynitrogen double helix, respectively. Density functional theory calculations, confirming the dynamical stability of the YN₆ and Y₂N₁₁compounds, show an anion-driven metallicity, explaining the unusual bond orders in the polynitrogen units. As the charge state of the polynitrogen double helix in Y₂N₁₁ is different from that previously found in Hf₂N₁₁ and because N₁₈ macrocycles have never been predicted or observed, their discovery significantly extends the chemistry of polynitrides.
Packed to the Brim: Investigating the Impact of Highly Responsive Prefixes on Internet-wide Measurement Campaigns
Creators: name: Sattler, Patrick
name: Zirngibl, Johannes
name: Jonker, Mattijs
name: Gasser, Oliver
name: Carle, Georg
name: Holz, Ralph
Publisher: name: arXiv
Year: 2023
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Internet-wide scans are an important tool to evaluate the deployment of services. To enable large-scale application layer scans, a fast, stateless port scan (e.g., using ZMap) is often performed ahead of time to collect responsive targets. It is a common expectation that port scans on the entire IPv4 address space provide a relatively unbiased view as they cover the complete address space. Previous work, however, has found prefixes where all addresses share particular properties. In IPv6, aliased prefixes and fully responsive prefixes, i.e., prefixes where all addresses are responsive, are a well-known phenomenon. However, there is no such in-depth analysis for prefixes with these responsiveness patterns in IPv4. This paper delves into the underlying factors of this phenomenon in the context of IPv4 and evaluates port scans on a total of 161 ports (142 TCP & 19 UDP ports) from three different vantage points. To account for packet loss and other scanning artifacts, we propose the notion of a new category of prefixes, which we call highly responsive prefixes (HRPs). Our findings show that the share of HRPs can make up 70 % of responsive addresses on selected ports. Regarding specific ports, we observe that CDNs contribute to the largest fraction of HRPs on TCP/80 and TCP/443, while TCP proxies emerge as the primary cause of HRPs on other ports. Our analysis also reveals that application layer handshakes to targets outside HRPs are, depending on the chosen service, up to three times more likely to be successful compared to handshakes with targets located in HRPs. To improve future scanning campaigns conducted by the research community, we make our study's data publicly available and provide a tool for detecting HRPs. Furthermore, we propose an approach for a more efficient, ethical, and sustainable application layer target selection.
Field-reversed bubble in deep plasma channels for high quality electron acceleration
Creators: name: Pukhov, A.
name: Jansen, O.
name: Tueckmantel, T.
name: Thomas, J.
name: Kostyukov, I. Yu.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We study hollow plasma channels with smooth boundaries for laser-driven electron acceleration in the bubble regime. Contrary to the uniform plasma case, the laser forms no optical shock and no etching at the front. This increases the effective bubble phase velocity and energy gain. The longitudinal field has a plateau that allows for mono-energetic acceleration. We observe as low as 10^{-3} r.m.s. relative witness beam energy uncertainty in each cross-section and 0.3% total energy spread. By varying plasma density profile inside a deep channel, the bubble fields can be adjusted to balance the laser depletion and dephasing lengths. Bubble scaling laws for the deep channel are derived. Ultra-short pancake-like laser pulses lead to the highest energies of accelerated electrons per Joule of laser pulse energy.
The influence of daily routines on engaging in diabetes self-management
Creators: name: Fritz, Heather
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: In contrast to previous research concerning the importance of routines in occupational engagement, most of which have largely focused on the routines of children and families, in this study a qualitative methodology was used to understand how routines function in a specific occupation: diabetes self-management (DSM).
A Generalization of the Functional Calculus of Observables and Notion of Joint Measurability to the Case of Non-commuting Observables
Creators: name: DeJonghe, Richard
name: Frey, Kimberly
name: Imbo, Tom
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: For any pair of bounded observables $A$ and $B$ with pure point spectra, we construct an associated "joint observable" which gives rise to a notion of a joint (projective) measurement of $A$ and $B$, and which conforms to the intuition that one can measure non-commuting observables simultaneously, provided one is willing to give up arbitrary precision. As an application, we show how our notion of a joint observable naturally allows for a construction of a "functional calculus," so that for any pair of observables $A$ and $B$ as above, and any (Borel measurable) function $f: \mathbb{R}^2 \rightarrow \mathbb{R}$, a new "generalized observable" $f(A,B)$ is obtained. Moreover, we show that this new functional calculus has some rather remarkable properties.
description: v2: BibTeX problems fixed
S100A9 is not essential for disease expression in an acute (K/BxN) or chronic (CIA) model of inflammatory arthritis
Creators: name: McGinnis, MW
name: Rampersad, RR
name: Esserman, D.
name: Patel, DD
name: Lee, DM
name: Tarrant, TK
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: S100A8 (calgranulin A, MRP8) and S100A9 (calgranulin B, MRP14) are calcium-binding proteins highly expressed by activated myeloid cells and thought to be involved in the pathogenesis of inflammatory diseases. Circulating levels of S100A8/S100A9 are elevated in both human and experimental models of autoimmune disease, including rheumatoid arthritis (RA).
Water Vapour Absorption in the Clear Atmosphere of an exo-Neptune
Creators: name: Fraine, Jonathan
name: Deming, Drake
name: Benneke, Björn
name: Knutson, Heather
name: Jordán, Andrés
name: Espinoza, Néstor
name: Madhusudhan, Nikku
name: Wilkins, Ashlee
name: Todorov, Kamen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Transmission spectroscopy to date has detected atomic and molecular absorption in Jupiter-sized exoplanets, but intense efforts to measure molecular absorption in the atmospheres of smaller (Neptune-sized) planets during transits have revealed only featureless spectra. From this it was concluded that the majority of small, warm planets evolve to sustain high mean molecular weights, opaque clouds, or scattering hazes in their atmospheres, obscuring our ability to observe the composition of these atmospheres. Here we report observations of the transmission spectrum of HAT-P-11b (~4 Earth radii) from the optical to the infrared. We detected water vapour absorption at 1.4 micrometre wavelength. The amplitude of the water absorption (approximately 250 parts-per- million) indicates that the planetary atmosphere is predominantly clear down to ~1 mbar, and sufficiently hydrogen-rich to exhibit a large scale height. The spectrum is indicative of a planetary atmosphere with an upper limit of ~700 times the abundance of heavy elements relative to solar. This is in good agreement with the core accretion theory of planet formation, in which gas giant planets acquire their atmospheres by directly accreting hydrogen-rich gas from the protoplanetary nebulae onto a large rocky or icy core.
description: 28 pages, 9 figures, 3 tables
Familial aggregation of schizophrenia: The moderating effect of age at onset, parental immigration, paternal age and season of birth
Creators: name: Svensson, Anna C.
name: Öberg, Sara
name: Hultman, Christina M.
name: Lichtenstein, Paul
name: Sullivan, Patrick F.
name: Sandin, Sven
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: An abundance of evidence has firmly established the familial aggregation of schizophrenia. The aim of this study was to examine how age at onset, parental characteristics and season of birth modify the familiality in schizophrenia.
New Periodic 6.7 GHz Class II Methanol Maser Associated with G358.460-0.391
Creators: name: Maswanganye, J. P.
name: Gaylard, M. J.
name: Goedhart, S.
name: van der Walt, D. J.
name: Booth, R. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Eight new class II methanol masers selected from the 6.7 GHz Methanol Multibeam survey catalogues I and II were monitored at 6.7 GHz with the 26m Hartebeesthoek Radio Astronomy Observatory (HartRAO) radio telescope for three years and seven months, from February 2011 to September 2014. The sources were also observed at 12.2 GHz and two were sufficiently bright to permit monitoring. One of the eight sources, namely G358.460-0.391, was found to show periodic variations at 6.7 GHz. The period was determined and tested for significance using the Lomb-Scargle, epoch-folding and Jurkevich methods, and by fitting a simple analytic function. The best estimate for the period of the 6.7 GHz class II methanol maser line associated with G358.460-0.391 is 220.0 $\pm$ 0.2 day.
description: 8 pages, 11 figures, accepted for publication in MNRAS. The appendix of 4 pages (with 16 figures) will be published as online version
Diagnostic Measures for Generalized Linear Models with Missing Covariates
Creators: name: ZHU, HONGTU
name: SHI, XIAOYAN
name: IBRAHIM, JOSEPH G.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: In this paper, we carry out an in-depth investigation of diagnostic measures for assessing the influence of observations and model misspecification in the presence of missing covariate data for generalized linear models. Our diagnostic measures include case-deletion measures and conditional residuals. We use the conditional residuals to construct goodness-of-fit statistics for testing possible misspecifications in model assumptions, including the sampling distribution. We develop specific strategies for incorporating missing data into goodness-of-fit statistics in order to increase the power of detecting model misspecification. A resampling method is proposed to approximate the p-value of the goodness-of-fit statistics. Simulation studies are conducted to evaluate our methods and a real data set is analysed to illustrate the use of our various diagnostic measures.
Webináre pre STU (február-marec 2023)
Creators: name: Stožická, Zuzana
name: Fišová, Gabriela
name: Sofianos, Silvia
name: Hudecová, Simona
Publisher: name: Zenodo
Year: 2023
Subjects: open science
open access
FAIR data
Data Management Plan
evaluation

description: Prezentácie z webinárov: o histórii vedeckej komunikácie, otvorenej vede a otvorenom prístupe o archivácii, manažmente dát a FAIR dátach a o hodnotení výskumu a viditeľnosti vedy
Anonymous
Creators: name: Anonymous
Publisher: name: Zenodo
Year: 2022
Subjects: bug report template
empirical study

description: This is the artifact for the paper "Inside Bug Report Templates: An Empirical Study on Bug Report Templates in Open-Source Software". What the artifact does:
 1) a questionnaire that we used for our online survey (PDF);
 2) the valid responses of our online survey (CSV). 3) the code of preprocessing (.py). 4) the dataset of preprocessing and labeling (CSV).
Orthogonalized Residuals for Estimation of Marginally Specified Association Parameters in Multivariate Binary Data: Orthogonalized residuals
Creators: name: QAQISH, BAHJAT F.
name: ZINK, RICHARD C.
name: PREISSER, JOHN S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: This paper focuses on marginal regression models for correlated binary responses when estimation of the association structure is of primary interest. A new estimating function approach based on orthogonalized residuals is proposed. A special case of the proposed procedure allows a new representation of the alternating logistic regressions method through marginal residuals. The connections between second-order generalized estimating equations, alternating logistic regressions, pseudo-likelihood and other methods are explored. Eficiency comparisons are presented, with emphasis on variable cluster size and on the role of higher-order assumptions. The new method is illustrated with an analysis of data on impaired pulmonary function.
Artifact for "Inside Bug Report Templates: An Empirical Study on Bug Report Templates in Open-Source Software"
Creators: name: ****
Publisher: name: Zenodo
Year: 2022
Subjects: bug report template
empirical study

description: This is the artifact for the paper "Inside Bug Report Templates: An Empirical Study on Bug Report Templates in Open-Source Software". What the artifact does:
 1) a questionnaire that we used for our online survey (PDF);
 2) the valid responses of our online survey (CSV). 3) the code of preprocessing (.py). 4) the dataset of preprocessing and labeling (CSV).
Nuclear magnetic resonance inverse spectra of InGaAs quantum dots: Atomistic level structural information
Creators: name: Bulutay, Ceyhun
name: Chekhovich, E. A.
name: Tartakovskii, A. I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A wealth of atomistic information is contained within a self-assembled quantum dot (QD), associated with its chemical composition and the growth history. In the presence of quadrupolar nuclei, as in InGaAs QDs, much of this is inherited to nuclear spins via the coupling between the strain within the polar lattice and the electric quadrupole moments of the nuclei. Here, we present a computational study of the recently introduced inverse spectra nuclear magnetic resonance technique to assess its suitability for extracting such structural information. We observe marked spectral differences between the compound InAs and alloy InGaAs QDs. These are linked to the local biaxial and shear strains, and the local bonding configurations. The cation-alloying plays a crucial role especially for the arsenic nuclei. The isotopic line profiles also largely differ among nuclear species: While the central transition of the gallium isotopes have a narrow linewidth, those of arsenic and indium are much broader and oppositely skewed with respect to each other. The statistical distributions of electric field gradient (EFG) parameters of the nuclei within the QD are analyzed. The consequences of various EFG axial orientation characteristics are discussed. Finally, the possibility of suppressing the first-order quadrupolar shifts is demonstrated by simply tilting the sample with respect to the static magnetic field.
description: Published version, 17 pages, 18 figures
A feasibility study on the use of low-dimensional simulations for database generation in adaptive chemistry approaches
Creators: name: Newale, Ashish S.
name: Sharma, Pushan
name: Pope, Stephen B.
name: Pepiot, Perrine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: LES/PDF approaches can be used for simulating challenging turbulent combustion configurations with strong turbulence chemistry interactions. Transported PDF methods are computationally expensive compared to flamelet-like turbulent combustion models. The pre-partitioned adaptive chemistry (PPAC) methodology was developed to address this cost differential. PPAC entails an offline preprocessing stage, where a set of reduced models are generated starting from an initial database of representative compositions. At runtime, this set of reduced models are dynamically utilized during the reaction fractional step leading to computational savings. We have recently combined PPAC with in-situ adaptive tabulation (ISAT) to further reduce the computational cost. We have shown that the combined method reduced the average wall-clock time per time step of large-scale LES/particle PDF simulations of turbulent combustion by 39\%. A key assumption in PPAC is that the initial database used in the offline stage is representative of the compositions encountered at runtime. In our previous study this assumption was trivially satisfied as the initial database consisted of compositions extracted from the turbulent combustion simulation itself. Consequently, a key open question remains as to whether such databases can be generated without having access to the turbulent combustion simulation. Towards answering this question, in the current work, we explore whether the compositions for forming such a database can be extracted from computationally-efficient low-dimensional simulations such as 1D counterflow flames and partially stirred reactors. We show that a database generated using compositions extracted from a partially stirred reactor configuration leads to performance comparable to the optimal case, wherein the database is comprised of compositions extracted directly from the LES/PDF simulation itself.