cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
How Many Ore-Bearing Asteroids?
Creators: name: Elvis, Martin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: A simple formalism is presented to assess how many asteroids contain ore, i.e. commercially profitable material, and not merely a high concentration of a resource. I apply this formalism to two resource cases: platinum group metals (PGMs) and water. Assuming for now that only Ni-Fe asteroids are of interest for PGMs, then 1% of NEOs are rich in PGMs. The dearth of ultra-low delta-v (<4.5 km s-1) NEOs larger than 100 m diameter reduces the ore-bearing fraction to only ~1 in 2000 NEOs. As 100 m diameter NEOs are needed to have a value >= US$1 B and the population of near-Earth objects (NEOs) larger than 100 m diameter is ~20,000 (Mainzer et al. 2011) the total population of PGM ore-bearing NEOs is roughly 10. I stress that this is a conservative and highly uncertain value. For example, an order of magnitude increase in PGM ore-bearing NEOs occurs if delta-v can as large as 5.7 km s-1. Water ore for utilization in space is likely to be found in ~1/1100 NEOs. NEOs as small as 18 m diameter can be water-ore-bodies because of the high richness of water (~20%) expected in ~25% of carbonaceous asteroids, bringing the number of water-ore-bearing NEOs to ~9000 out of the 10 million NEOs of this size. These small NEOs are, however, hard to find with present surveys. There will be ~18 water-ore-bearing NEOs >100 m diameter. These estimates are at present highly imprecise and sensitive to small changes, especially in the maximum delta-v allowed. Nonetheless the low values found here mean that much improved determinations of each of the terms of the formalism are urgently needed. If better estimates still find small numbers of ore-bearing NEOs then thorough surveys for NEA discovery and, especially, characterization are needed. Strategies for the two classes are likely to be different.
description: 18 pages, 3 figures
Bozo Languages of Mali (documents)
Creators: name: Heath, Jeffrey
Publisher: name: My University
Year: 2022
Subjects: subject: Bozo languages
subject: Linguistics
subject: FOS: Languages and literature
subject: Humanities
subject: FOS: Humanities

description: reference grammars of Bozo languages of Mali
description: Related dataset collection is at https://deepblue.lib.umich.edu/data/collections/tm70mv59r and also listed in the dc.relation field of the full item record.
description: reference grammars of Bozo languages of Mali
Could Viana do Castelo, a coastal city in Northern Portugal, design cultural tourism more creatively?
Creators: name: Fernandes, Carlos
name: Correia, Alexandra I.
name: Rachão, Susana
Publisher: name: Journal of Tourism & Development
Year: 2017

description: No abstract available.
description: Journal of Tourism & Development, vol. 2 n.º 27/28 (2017): INVTUR 2017 Intl' Conference - Abstracts
A grammar of Kelenga (Hainyaxo), Bozo language of Mali
Creators: name: Heath, Jeffrey
Publisher: name: My University
Year: 2023
Subjects: subject: Kelenga, Bozo, Mande, Mali
subject: Linguistics
subject: FOS: Languages and literature
subject: Humanities
subject: FOS: Humanities

description: Reference grammar with texts in pdf format. Kelenga belongs to the small Bozo language family, which is part of the huge Mande macro-family. Kelenga and most other Bozo are the classic fishing people of the interior delta of the Niger River in central Mali. Additional materials (lexical spreadsheets and audio files) will be archived in Deep Blue Data. This Kelenga grammar joins previously archived grammars of Cliffs Jenaama and Djenne Jenaama-Sorogaama, also in the Bozo family. Fieldwork on Tigemaxo is underway.
description: A reference grammar with texts of Kelenga (previously called Hainyaxo), a Bozo language of Mali.
Strong Dependence of the Inner Edge of the Habitable Zone on Planetary Rotation Rate
Creators: name: Yang, Jun
name: Boue, Gwenael
name: Fabrycky, Daniel C.
name: Abbot, Dorian S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Planetary rotation rate is a key parameter in determining atmospheric circulation and hence the spatial pattern of clouds. Since clouds can exert a dominant control on planetary radiation balance, rotation rate could be critical for determining mean planetary climate. Here we investigate this idea using a three-dimensional general circulation model with a sophisticated cloud scheme. We find that slowly rotating planets (like Venus) can maintain an Earth-like climate at nearly twice the stellar flux as rapidly rotating planets (like Earth). This suggests that many exoplanets previously believed to be too hot may actually be habitable, depending on their rotation rate. The explanation for this behavior is that slowly rotating planets have a weak Coriolis force and long daytime illumination, which promotes strong convergence and convection in the substellar region. This produces a large area of optically thick clouds, which greatly increases the planetary albedo. In contrast, on rapidly rotating planets a much narrower belt of clouds form in the deep tropics, leading to a relatively low albedo. A particularly striking example of the importance of rotation rate suggested by our simulations is that a planet with modern Earth's atmosphere, in Venus' orbit, and with modern Venus' (slow) rotation rate would be habitable. This would imply that if Venus went through a runaway greenhouse, it had a higher rotation rate at that time.
description: 7 pages, 4 figures, accepted at Astrophysical Journal Letters
Motivations for participating in Wine Tourism Activities- the case of Tourists on the ThraceWine Route in Turkey
Creators: name: Akdag, Gürkan
name: Oyan, Seda
name: Kastenholz, Elisabeth
Publisher: name: Journal of Tourism & Development
Year: 2017

description: No abstract available.
description: Journal of Tourism & Development, vol. 2 n.º 27/28 (2017): INVTUR 2017 Intl' Conference - Abstracts
O perfil do turista e a experiência vivida em espaço rural no Alto Alentejo
Creators: name: Milheiro, Eva
name: Kastenholz, Elisabeth
name: Carneiro, Maria João
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2017

description: Sem resumo disponível.
description: Revista Turismo & Desenvolvimento, vol. 2 n.º 27/28 (2017): INVTUR 2017 Intl' Conference - Abstracts
Asymptotics of Bayesian Error Probability and Rotating-PSF-Based Source Super-Localization in Three Dimensions
Creators: name: Prasad, Sudhakar
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present an asymptotic analysis of the minimum probability of error (MPE) in inferring the correct hypothesis in a Bayesian multi-hypothesis testing (MHT) formalism using many pixels of data that are corrupted by signal dependent shot noise, sensor read noise, and background illumination. We perform this error analysis for a variety of combined noise and background statistics, including a pseudo-Gaussian distribution that can be employed to treat approximately the photon-counting statistics of signal and background as well as purely Gaussian sensor read-out noise and more general, exponentially peaked distributions. We subsequently apply the MPE asymptotics to characterize the minimum conditions needed to localize a point source in three dimensions by means of a rotating-PSF imager and compare its performance with that of a conventional imager in the presence of background and sensor-noise fluctuations. In a separate paper, we apply the formalism to the related but qualitatively different problem of 2D super-resolution imaging of a closely spaced pair of point sources in the plane of best focus.
description: Submitted to Optics Express, March 17, 2014
Shared rural person-to-person accommodations, social interaction and sensorial themes of associated tourist experiences
Creators: name: Souza, Luís Henrique De
name: Kastenholz, Elisabeth
name: Barbosa, Maria De Lourdes
Publisher: name: Journal of Tourism & Development
Year: 2017

description: No abstract available.
description: Journal of Tourism & Development, vol. 2 n.º 27/28 (2017): INVTUR 2017 Intl' Conference - Abstracts
Low ionization lines in high luminosity quasars: The calcium triplet
Creators: name: Martínez-Aldama, Mary Loli
name: Dultzin, Deborah
name: Marziani, Paola
name: Sulentic, Jack W.
name: Chen, Yang
name: Bressan, Alessandro
name: Stirpe, Giovanna M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In order to investigate where and how low ionization lines are emitted in quasars we are studying a new collection of spectra of the CaII triplet at $λ$8498, $λ$8542, $λ$8662 observed with the Very Large Telescope (VLT) using the Infrared Spectrometer And Array Camera (ISAAC). Our sample involves luminous quasars at intermediate redshift for which CaII observations are almost nonexistent. We fit the CaII triplet and the OI $λ$8446 line using the H$β$ profile as a model. We derive constraints on the line emitting region from the relative strength of the CaII triplet, OI $λ$8446 and H$β$.
description: Accepted for publication in Advances in Space Research
Co-creating the rural tourism experience: a case study of a rural tourism accommodation in the Viseu Dão-Lafões Region
Creators: name: Pato, Lúcia
Publisher: name: Journal of Tourism & Development
Year: 2017

description: Sem resumo disponível.
description: Journal of Tourism & Development, vol. 2 n.º 27/28 (2017): INVTUR 2017 Intl' Conference - Abstracts
Second-order sufficient conditions in the sparse optimal control of a phase field tumor growth model with logarithmic potential
Creators: name: Sprekels, Jürgen
name: Tröltzsch, Fredi
Publisher: name: Weierstrass Institute
Year: 2023
Subjects: subject: Optimal control
subject: tumor growth models
subject: logarithmic potentials
subject: second-order sufficient optimality conditions
subject: sparsity
subject: 35K20
subject: 35K57
subject: 37N25
subject: 49J20
subject: 49J50
subject: 49J52
subject: 49K20
subject: 49K40

description: his paper treats a distributed optimal control problem for a tumor growth model of viscous Cahn--Hilliard type. The evolution of the tumor fraction is governed by a thermodynamic force induced by a double-well potential of logarithmic type. The cost functional contains a nondifferentiable term in order to enhance the occurrence of sparsity effects in the optimal controls, i.e., of subdomains of the space-time cylinder where the controls vanish. In the context of cancer therapies, sparsity is very important in order that the patient is not exposed to unnecessary intensive medical treatment. In this work, we focus on the derivation of second-order sufficient optimality conditions for the optimal control problem. While in previous works on the system under investigation such conditions have been established for the case without sparsity, the case with sparsity has not been treated before. The results obtained in this paper also improve the known results on this phase field model for the case without sparsity.
Kinetic theory and numerical simulations of two-species coagulation
Creators: name: Escudero, Carlos
name: Macia, Fabricio
name: Toral, Raul
name: Velazquez, Juan J. L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this work we study the stochastic process of two-species coagulation. This process consists in the aggregation dynamics taking place in a ring. Particles and clusters of particles are set in this ring and they can move either clockwise or counterclockwise. They have a probability to aggregate forming larger clusters when they collide with another particle or cluster. We study the stochastic process both analytically and numerically. Analytically, we derive a kinetic theory which approximately describes the process dynamics. One of our strongest assumptions in this respect is the so called well-stirred limit, that allows neglecting the appearance of spatial coordinates in the theory, so this becomes effectively reduced to a zeroth dimensional model. We determine the long time behavior of such a model, making emphasis in one special case in which it displays self-similar solutions. In particular these calculations answer the question of how the system gets ordered, with all particles and clusters moving in the same direction, in the long time. We compare our analytical results with direct numerical simulations of the stochastic process and both corroborate its predictions and check its limitations. In particular, we numerically confirm the ordering dynamics predicted by the kinetic theory and explore properties of the realizations of the stochastic process which are not accessible to our theoretical approach.
Representações sociais do rural como espaço turístico em Portugal – o lugar da natureza
Creators: name: Figueiredo, Elisabete
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2017

description: Sem resumo disponível.
description: Revista Turismo & Desenvolvimento, vol. 2 n.º 27/28 (2017): INVTUR 2017 Intl' Conference - Abstracts
The effect of As-Chain layers in CaFeAs$_2$
Creators: name: Wu, Xianxin
name: Le, Congcong
name: Liang, Yi
name: Qin, Shengshan
name: Fan, Heng
name: Hu, Jiangping
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The new discovered iron-based superconductors have chain-like As layers. These layers generate an additional 3-dimensional hole pocket and cone-like electron pockets. The former is attributed to the Ca $d$ and As1 $p_z$ orbitals and the latter are attributed to the anisotropic Dirac cone, contributed by As1 $p_x$ and $p_y$ orbitals. We find that large gaps on these pockets open in the collinear antiferromagnetic ground state of CaFeAs$_2$, suggesting that the chain-like As layers are strongly coupled to FeAs layers. Moreover due to the low symmetry crystal induced by the As layers, the bands attributed to FeAs layers in $k_y=π$ plane are two-fold degenerate but in $k_x=π$ plane are lifted. This degeneracy is protected by a hidden symmetry $\hatΥ=\hat{T}\hat{R}_y$. Ignoring the electron cones, the materials can be well described by a six-band model, including five Fe $d$ and As1 $p_z$ orbitals. We suggest that these new features may help us to identify the sign change and pairing symmetry in iron based superconductors.
description: 7 pages, 10 figures
How Many Assay Probes to Find One Ore-bearing Asteroid?
Creators: name: Elvis, Martin
name: Esty, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The number of ore-bearing asteroids could well be small and remote telescopic techniques are inadequate to identify such asteroids confidently. Finding an asteroid that can be profitably mined requires proximate observations from assay probes. Here we use a simple statistical approach to estimate the number of assay probes, Nassay, needed to find at least one ore-bearing asteroid at a high confidence (90%, 95%, 99%). We present results for a wide range of values of the probability of an asteroid being rich in the resource of interest, Prich. We find that Nassay depends strongly on Prich, for likely values of Prich (<0.5). For a plausible value of Prich~0.1 then to obtain 90% confidence that at least one ore-bearing asteroid is found, Nassay = 22, and for 99% confidence Nassay = 44. A factor two increase in Prich roughly halves Nassay, while even for Prich~0.5, Nassay (90%) = 4. Hence any improvement in asteroid characterization prior to sending probes to its proximity would be an effective way to cost-effectively search for valuable resources among the asteroids. Some possibilities for doing so are briefly discussed.
description: 11 pages, 1 figure. Acta Astronautica, in press
Sense of personal agency towards mitigating the threat of antibiotic resistance: a focus group study with parents of children under 5 years old, conducted mid-pandemic
Creators: name: McCall, Becky
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences
subject: antibiotic*; 'antibiotic resistance'; parent*; 'focus group'; GP; COVID, prevention, infection

description: Background. Most antibiotic prescribing occurs in primary care, largely in children under 5 years old, and often inappropriately. This study investigated knowledge, attitudes and behaviours (KABs) towards common childhood infections, antibiotic use and antimicrobial resistance (AMR), among parents of children under 5 years old. The concept of individual sacrifice (forgoing antibiotics—selective pressure for AMR) to mitigate future societal risk of AMR and how the COVID-19 pandemic shaped views were explored. Methods. This qualitative study included three, one-hour, virtual focus groups with mothers from parenting networks across inner-city London and semi-rural England, held mid-pandemic (2020). All had ≥1 child <5 years old. The Framework Method of analysis was used. Parents' KABs towards antibiotic use/AMR formed the primary outcome, with emphases on their sense of personal agency towards mitigating the threat of AMR for society, plus how the pandemic influenced views on infection prevention and care. Results: Fourteen mothers (groups of six, four, four) participated, with mixed ethnicities, education and employment status. Parent perceptions of their individual child's immediate need for antibiotics outweighed concerns for any possible future threat of AMR to society. Four key themes were identified: uncertainty around symptoms; impact of socio-cultural background on KAB; poor understanding of how antibiotics/AMR work; and opportunities within the doctor–patient dialogue to shape mindset around AMR. The pandemic influenced views across themes. Conclusion. Parents prioritising their child's perceived, immediate, individual 'need' for antibiotics over any future impact of AMR on society highlights a continuing need to engage parents in how to mitigate AMR through appropriate antibiotic use, reducing threat to both their child and others. Framing point-of-care dialogue around antibiotic use/AMR in the present (versus future), drawing on pandemic insights and tailoring according to nuanced socio-cultural influences, may encourage a greater sense of personal agency towards taking action to mitigate antibiotic resistance.
Co-creating food tourism experiences in a rural destination
Creators: name: Carvalho, Mariana
name: Lima, Joana
name: Kastenholz, Elisabeth
Publisher: name: Journal of Tourism & Development
Year: 2017

description: No abstract available.
description: Journal of Tourism & Development, vol. 2 n.º 27/28 (2017): INVTUR 2017 Intl' Conference - Abstracts
Avaliação da qualidade em gastronomia tradicional: o estudo de caso dos restaurantes das cidades Sinop e Sorriso, Mato Grosso (Brasil)
Creators: name: Peixer, Janaina
name: Brandão, Carlos
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2017

description: Sem resumo disponível.
description: Revista Turismo & Desenvolvimento, vol. 2 n.º 27/28 (2017): INVTUR 2017 Intl' Conference - Abstracts
On homogeneous warped product Einstein metrics
Creators: name: Lafuente, Ramiro A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this article we study homogeneous warped product Einstein metrics and its connections with homogeneous Ricci solitons. We show that homogeneous $(λ,n+m)$-Einstein manifolds (which are the bases of homogeneous warped product Einstein metrics) are one-dimensional extensions of algebraic solitons. This answers a question from a paper of C. He, P. Petersen and W. Wylie, where they prove the converse statement. Our proof is strongly based on their results, but it also makes use of sharp tools from the theory of homogeneous Ricci solitons. As an application, we obtain that any homogeneous warped product Einstein metric with homogeneous base is diffeomorphic to a product of homogeneous Einstein manifolds.
description: 9 pages
Lifestyle entrepreneurs in rural tourism: motivations, management practices and sustainability issues
Creators: name: Cunha, Conceição
name: Kastenholz, Elisabeth
name: Carneiro, Maria João
Publisher: name: Journal of Tourism & Development
Year: 2017

description: No abstract available.
description: Journal of Tourism & Development, vol. 2 n.º 27/28 (2017): INVTUR 2017 Intl' Conference - Abstracts
Co-creating food tourism experiences
Creators: name: Carvalho, Mariana
name: Kastenholz, Elisabeth
name: Carneiro, Maria João
Publisher: name: Journal of Tourism & Development
Year: 2017

description: No abstract available.
description: Journal of Tourism & Development, vol. 2 n.º 27/28 (2017): INVTUR 2017 Intl' Conference - Abstracts
Invariant probability measures and non-wandering sets for impulsive semiflows
Creators: name: Alves, Jose F.
name: Carvalho, Maria
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We consider impulsive dynamical systems defined on compact metric spaces and their respective impulsive semiflows. We establish sufficient conditions for the existence of probability measures which are invariant by such impulsive semiflows. We also deduce the forward invariance of their non-wandering sets except the discontinuity points.
description: 18 pages
The solar abundance problem: the effect of the turbulent kinetic flux on the solar envelope model
Creators: name: Zhang, Q. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent 3D-simulations have shown that the turbulent kinetic flux (TKF) is significant. We discuss the effects of TKF on the size of convection zone and find that the TKF may help to solve the solar abundance problem. The solar abundance problem is that, with new abundances, the solar convection zone depth, sound speed in the radiative interior, the helium abundance and density in the convective envelope are not in agreement with helioseismic inversions. We have done Monte Carlo simulations on solar convective envelope models with different profile of TKF to test the effects. The solar abundance problem is revealed in the standard solar convective envelope model with AGSS09 composition, which shows significant differences ($\rm{\sim 10 %}$) on density from the helioseicmic inversions, but the differences in the model with old composition GN93 is small ($\rm{\sim 0.5 %}$). In the testing models with different imposed TKF, it is found that the density profile is sensitive to the value of TKF at the base of convective envelope and insensitive to the structure of TKF in the convection zone. Required value of turbulent kinetic luminosity at the base is about $\rm{-13%\sim-19%L_{\odot}}$. Comparing with the 3D-simulations, this value is plausible. This study is for the solar convective envelope only. The evolutionary solar models with TKF are required for investigating its effects on the solar interior structure below the convection zone and the whole solar abundance problem, but the profile of TKF in the overshoot region is needed.
description: 5 pages, 2 figures, accepted for publication in the ApJ Letters
Contribution by M. A. Girolami
Creators: name: Girolami, Mark A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: This collection of Big Bayes Stories could be partitioned into two groups, one relating to the sciences, cosmology in particular, and the other relating to public policy, that is, health, fisheries management and demographics.
description: Published in at http://dx.doi.org/10.1214/13-STS459 the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Direct spectrum analysis using a threshold detector with application to a superconducting circuit
Creators: name: Ithier, G.
name: Tancredi, G.
name: Meeson, P. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We introduce a new and quantitative theoretical framework for noise spectral analysis using a threshold detector, which is then applied to a superconducting device: the Cavity Bifurcation Amplifier (CBA). We show that this new framework provides direct access to the environmental noise spectrum with a sensitivity approaching the standard quantum limit of weak continuous measurements. In addition, the accessible frequency range of the spectrum is, in principle, limited only by the ring down time of the CBA. This on-chip noise detector is non-dissipative and works with low probing powers, allowing it to be operated at low temperatures ($T<15$mK). We exploit this technique for measuring the frequency fluctuations of the CBA and find a low frequency noise with an amplitude and spectrum compatible with a dielectric origin.
description: 8 pages, 5 figures, 1 notation table
NFFA-Europe Pilot - D12.2 - Prototype of corrected CRL nanofocusing unit for user experiments
Creators: name: Seiboth, Frank
Publisher: name: Zenodo
Year: 2022

description: We report on the implementation of a demonstrator for aberration correction of X-ray nanobeams generated by compound refractive lenses (CRLs) at beamline P06 of PETRA III at DESY. The aberrations are compensated by a tailor-made optical phase plate that needs to be positioned with respect to the CRLs in order to effectively compensate shape errors. The demonstrator combines the CRL mount and phase plate mount into a single device, allowing for a combined alignment. A novel piezo-driven positioning system allows for a one-off alignment of the phase plate relative to the CRL and freeze the alignment. In subsequent uses, the device can be operated by non-expert users.
description: WP12 - X-ray Wavefront Metrology, Correction and Manipulation
Diffuse Extraplanar Dust in NGC 891
Creators: name: Seon, Kwang-Il
name: Witt, Adolf N.
name: Shinn, Jong-Ho
name: Kim, Il-Joong
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report the detection of vertically extended far-ultraviolet (FUV) and near-UV emissions in an edge-on spiral galaxy NGC 891, which we interpret as being due to dust-scattered starlight. Three-dimensional radiative transfer models are used to investigate the content of the extraplanar dust that is required to explain the UV emission. The UV halos are well reproduced by a radiative transfer model with two exponential dust disks, one with a scaleheight of $\approx$ 0.2 - 0.25 kpc and the other with a scaleheight of $\approx$ 1.2 - 2.0 kpc. The central face-on optical depth of the geometrically thick disk is found to be $τ_{thick} \approx$ 0.3 - 0.5 at B-band. The results indicate that the dust mass at |z| > 2 kpc is $\approx$ 3 - 5% of the total dust mass, which accord well with the recent Herschel sub-millimeter observation. Our results, together with the recent discovery of the UV halos in other edge-on galaxies, suggest the widespread existence of the geometrically thick dust layer above the galactic plane in spirals.
description: 6 pages, 5 figure, accepted for publication in the ApJL
Electron-electron interaction mediated indirect coupling of electron and magnetic ion or nuclear spins in self-assembled quantum dots
Creators: name: Mendes, Udson C.
name: Korkusinski, Marek
name: Hawrylak, Pawel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show here the existence of the indirect coupling of electron and magnetic or nuclear ion spins in self-assembled quantum dots mediated by electron-electron interactions. With a single localized spin placed in the center of the dot, only the spins of electrons occupying the zero angular momentum states couple directly to the localized spin. We show that when the electron-electron interactions are included, the electrons occupying finite angular momentum orbitals interact with the localized spin. This effective interaction is obtained using exact diagonalization of the microscopic Hamiltonian as a function of the number of electronic shells, shell spacing, and anisotropy of the electron-Mn exchange interaction. The effective interaction can be engineered to be either ferromagnetic or antiferromagnetic by tuning the parameters of the quantum dot.
description: 8 pages, 6 figures
Social tourism for seniors in Slovenia
Creators: name: Gabruc, Janja
name: Medaric, Zorana
name: Sedmak, Mateja
Publisher: name: Journal of Tourism & Development
Year: 2017

description: No abstract available.
description: Journal of Tourism & Development, vol. 2 n.º 27/28 (2017): INVTUR 2017 Intl' Conference - Abstracts
Enabling the control of reperfusion parameters in out-of-hospital cardiac arrest: First applications of the CARL system
Creators: name: Philipp, Alois
name: Pooth, Jan-Steffen
name: Benk, Christoph
name: Müller, Thomas
name: Lunz, Dirk
Publisher: name: Universität Regensburg
Year: 2022
Subjects: subject: extracorporeal cardiopulmonary resuscitation, out-of-hospital cardiac arrest, targeted reperfusion, ischemia-reperfusion injury
subject: 610 Medizin

description: Introduction There is increasing evidence for extracorporeal cardiopulmonary resuscitation (ECPR) as a rescue therapy for selected patients in refractory cardiac arrest (CA). Besides patient selection, the control of reperfusion parameters is of eminent importance. Especially in out-of-hospital CA, monitoring and individualized, targeted reperfusion remains a great challenge for emergency personnel. The CARL® system is designed to enable an early control of a variety of reperfusion parameters and to pursue a targeted reperfusion strategy in ECPR. Case presentation We report the first 10 ECPR applications of the CARL® system in Regensburg, Germany. Early blood gas analysis, oxygen titration and pressure monitoring were feasible and enabled an individualized and targeted reperfusion strategy in all patients. After suffering from refractory CA and prolonged resuscitation attempts, five out of the first 10 patients survived and were successfully discharged from the hospital (CPC one on hospital discharge). Conclusion Application of the CARL® system contributed to early monitoring and control of reperfusion parameters. Whether targeted ECPR may have the potential to improve outcomes in refractory OHCA remains the subject of future investigations.
BO'LAJAK INFORMATIKA FANI O'QITUVCHILARINING AXBOROT KOMPETENLIGINI RIVOJLANTIRISHNING PEDAGOGIK SHART-SHAROITLARI
Creators: name: Otajonov, Jamshidbek
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqola bo'lajak informatika o'qituvchilarida axborot kompetentsiyasini rivojlantirish uchun zarur bo'lgan pedagogik shart-sharoitlarni o'rganadi. Natijada axborot kompetensiyasining ko'p qirrali xususiyatini ta'kidlab, axloqiy mulohazalar, tanqidiy fikrlash va moslashuvchan pedagogikaning ahamiyatini ta'kidlandi. Faol ta'lim usullari, tajriba imkoniyatlari va uzluksiz kasbiy rivojlanish bo'lajak informatika o'qituvchilarini zarur kompetensiyalar bilan ta'minlashda asosiy komponent sifatida qaraladi.
The universe as quantum computer
Creators: name: Lloyd, Seth
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: This article reviews the history of digital computation, and investigates just how far the concept of computation can be taken. In particular, I address the question of whether the universe itself is in fact a giant computer, and if so, just what kind of computer it is. I will show that the universe can be regarded as a giant quantum computer. The quantum computational model of the universe explains a variety of observed phenomena not encompassed by the ordinary laws of physics. In particular, the model shows that the the quantum computational universe automatically gives rise to a mix of randomness and order, and to both simple and complex systems.
description: 16 pages, LaTex
Development of a rice Destoner for local rice production in South-Western Nigeria
Creators: name: Adetula, Onaopemipo Perez
Publisher: name: Zenodo
Year: 2023
Subjects: Rice destoner, Destoner, local rice

description: The high consumption of rice worldwide has made rice processing industries very common, especially in developing countries like Nigeria, where small-scale local rice mills still use manual methods to separate rice from stones and pebbles. This approach is time-consuming and inefficient. Therefore, the development of a cheap and portable rice destoner for local rice farmers is of high importance. The aim of this project is to develop a rice destoner, which will proffer a cost-effective and efficient solution to the problem of rice destoning. The project's objectives include investigating traditional methods of removing stones from rice, adapting the method to the machine's design, fabricating the machine, and evaluating its performance. The expected contribution of the project to knowledge is the provision of a platform for other researchers to work on the production of Nigeria's local rice. This project will boost the consumption of local rice, especially in the south-west region of Nigeria, and improve the economic situation of farmers greatly. The project is focused on designing and fabricating a rice destoner that will use vibrating sieves powered by an electric motor to destone local rice.
Dissecting the Red Sequence: The Bulge and Disc Colours of Early-Type Galaxies in the Coma Cluster
Creators: name: Head, Jacob T. C. G.
name: Lucey, John R.
name: Hudson, Michael J.
name: Smith, Russell J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore the internal structure of red sequence galaxies in the Coma cluster across a wide range of luminosities ($-17>M_g>-22$) and cluster-centric radii ($0
description: 23 pages, 14 figures. Accepted for publication in MNRAS; v2 minor typos corrected
Travelling of families of children with special needs: the case of Finland
Creators: name: Kyyrä, Sanna
name: Harju-Myllyaho, Anu
name: Jutila, Salla
Publisher: name: Journal of Tourism & Development
Year: 2017

description: No abstract available.
description: Journal of Tourism & Development, vol. 2 n.º 27/28 (2017): INVTUR 2017 Intl' Conference - Abstracts
Big Bang nucleosynthesis revisited via Trojan Horse Method measurements
Creators: name: Pizzone, R. G.
name: Sparta, R.
name: Bertulani, C. A.
name: Spitaleri, C.
name: La Cognata, M.
name: Lalmansingh, J.
name: Lamia, L.
name: Mukhamedzhanov, A.
name: Tumino, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Nuclear reaction rates are among the most important input for understanding the primordial nucleosynthesis and therefore for a quantitative description of the early Universe. An up-to-date compilation of direct cross sections of 2H(d,p)3H, 2H(d,n)3He, 7Li(p,alpha)4He and 3He(d,p)4He reactions is given. These are among the most uncertain cross sections used and input for Big Bang nucleosynthesis calculations. Their measurements through the Trojan Horse Method (THM) are also reviewed and compared with direct data. The reaction rates and the corresponding recommended errors in this work were used as input for primordial nucleosynthesis calculations to evaluate their impact on the 2H, 3,4He and 7Li primordial abundances, which are then compared with observations.
description: 22 pages, 7 figures, accepted for publication in The Astrophysical Journal
TERMIN LISONIY TADQIQOTLAR OBYEKTI SIFATIDA
Creators: name: Xusenova, Mehriniso
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqola terminlarning tilshunoslik sohasidagi roli, ishlatilishi, vujudga kelish yo`llari, ommalashishi haqida umumiy ma`lumot beradi. Terminlarning lisoniy tadqiqotlar obyekti sifatida ishlatilish yo`llari haqida fikr yuritilgan.
Técnicas de inteligência artificial para o auxílio na detecção de possibilidade de sobrevivência após o desdobramento de uma doença cardíaca
Creators: name: Stéfane de Souza, Vitória
name: Araújo Lima, Danielli
Publisher: name: figshare
Year: 2023
Subjects: Cardiology (incl. cardiovascular diseases)

description: Doenças cardiovasculares vem proporcionando um número ocasionalmente grande de mortes no mundo inteiro, podem ser relacionadas a uma má alimentação ou podem ser hereditárias. Algumas delas são a insuficiência cardíaca, infarto agudo do miocárdio e a hipertensão. Com o passar dos anos, a tecnologia juntamente com a inteligência artificial se fez cada vez mais presente na medicina cardiovascular. Com ferramentas elaboradas para auxiliar no diagnóstico e tratamento de doenças coronárias. Será abordado no presente estudo, como o aprendizado de máquina pode ser utilizado na detecção de fatores que influenciam na probabilidade de sobrevivência de pacientes com doenças cardiovasculares, a partir de uma base de dados coletada de diferentes pacientes. Os algoritmos usados foram o Decision Tree e Support Vector Machines. Assim, foi possível perceber quais são os dados de maior relevância para o índice de sobrevivência após o desenvolvimento de alguma doença cardíaca. Os resultados apresentaram $84,512\%$ de acurácia para o algoritmo Support Vector Machines e $81,145\%$ de acurácia para a algoritmo Decision Tree.
Wonderful Examples, but Let's not Close Our Eyes
Creators: name: Hand, David J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: The papers in this collection are superb illustrations of the power of modern Bayesian methods. They give examples of problems which are well suited to being tackled using such methods, but one must not lose sight of the merits of having multiple different strategies and tools in one's inferential armoury.
description: Published in at http://dx.doi.org/10.1214/13-STS446 the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Exploring the Tumor and Premetastatic Microenvironment of the Ovary
Creators: name: McCloskey, Curtis
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: Ovarian Cancer
Metformin

description: Ovarian cancers are the most lethal gynecological malignancies, responsible for more than 150,000 deaths around the globe annually. Among ovarian cancers, high-grade serous ovarian cancer has a 5-year survival rate of only 40%. This poor survival is due to a widespread lack of understanding of this disease, from suboptimal prevention and screening methods to failures in treatment. Moving towards novel prevention and treatment methods requires better models of ovarian cancer that phenotypically and genetically recapitulate the features of ovarian cancers that are seen clinically. This thesis highlights the characterization of a novel syngeneic model of high-grade serous ovarian cancer that exhibits the growth, expression profile, histology, and a tumor-initiating cell population that closely resembles human disease. We expand on our initial characterization of the STOSE model in a proof-of-principle study using deep learning of second-harmonic generation and two-photon-excited-fluorescence images to classify normal compared to cancerous tissues. The use of deep learning for image classification based on extracellular matrix and cellular structure could have robust application to complementing common histological examination of tissues and in treatment planning. Building on the changes in structure found in normal compared to cancerous ovarian tissue and recent research that showed age-associated fibrosis develops in murine ovaries, we assessed the non-hereditary ovarian cancer risk factors of age and ovulation number for their effects in altering ovarian tissue structure. This thesis concludes with the first evidence of ovarian fibrosis in non-pathological post-menopausal human ovaries. We show that ovarian fibrosis correlates with the development of a pre-metastatic (tumor-permissive) niche, revealing a novel avenue of research into ovarian cancer risk. Interestingly, age-associated fibrosis could be prevented or reversed by metformin use, revealing a possible mechanism for the previously identified ovarian cancer risk reduction seen with metformin use and further supporting the use of metformin for ovarian cancer prevention.
Weak and strong field approximations and circular orbits of Kehagias-Sfetsos space-time
Creators: name: Dwornik, M.
name: Horváth, Zs.
name: Gergely, L. Á.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Kehagias-Sfetsos asymptotically flat black hole and naked singularity solutions of Hořava-Lifshitz gravity are investigated both in the weak-field and strong-field regimes. In the weak-field limit the gravitational field generated by the Kehagias-Sfetsos spherically symmetric solution is weaker then in the case of the Schwarzschild black hole of general relativity. In the strong-field regime naked singularities with $ω_{0} \ll 1 $ display an unusual distance dependence: gravity becomes weaker when approaching the singularity. The stability of circular orbits is also analyzed. While in the black hole case the square of the angular momentum should be larger than a certain finite, non-zero minimal value, in the naked singularity case there are stable circular orbits for any non-zero value of the angular momentum. In this regime we prove the existence of an infimum of the allowed radii of circular orbits (corresponding to vanishing angular momentum).
Redistribution du pouvoir et foi démocratique : John Dewey contre le réalisme politique
Creators: name: Silva De Souza, Carlos Alexandre
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: John Dewey
Démocratie
Réalisme politique
Réseaux intellectuels
Redistribution du pouvoir
Foi démocratique

description: Le retour de John Dewey au centre de l’attention du monde intellectuel est le point de départ de cette thèse qui se penche sur la pensée politique de l’auteur américain. Afin d’identifier les raisons qui expliquent la redécouverte du philosophe pragmatiste, l’étude fait appel à la théorie des réseaux intellectuels élaborée par Randall Collins. En tenant compte de cette perspective sociologique, nous affirmons que la rivalité entre Dewey et les partisans du réalisme démocratique aux années 1920 et 1930 déclenche chez Dewey le développement d’une théorie démocratique innovatrice, à la fois réaliste et éthique, qui se révèle d’une remarquable pertinence de nos jours. La revanche du penseur libéral contre les réalistes se traduit par sa vision singulière et progressiste de la démocratie, dont la redistribution du pouvoir et la foi démocratique demeurent les éléments essentiels. La créativité et la pertinence des idées politiques de Dewey expliquent l’intérêt renouvelé des théoriciens contemporains à propos de son libéralisme radical.
Ethiopia Field Epidemiology Training Program (EFETP) Compiled Body of Works in Field Epidemiology
Creators: name: Bekele, Daniel Teshome
Publisher: name: Zenodo
Year: 2014

description: Background: Measles is a highly infectious vaccine preventable childhood disease that infects over 20

million people each year. On 14th August, 2013; five suspected cases of measles were reported in Kucha

district, Gamo Gofa zone, Ethiopia. We conducted an investigation to confirm the diagnosis, assess

factors associated with the outbreak and recommend control measure.

Method: We conducted 1:2 unmatched case-control study, we defined a case as any resident of Kucha

district with fever, rash, and either cough, conjunctivitis or coryza, between August 14 to 20th September,

2013.Five blood specimen collected from suspected cases for testing Measles IgM. We reviewed patient’s

medical records of in the health facilities and active search for additional cases in affected communities.

Questionnaires were administered to caregivers of cases and controls to obtain information on Sciodemography

and risk factors. Immunization status was assessed using immunization card and/or care

givers recall.
Semidefinite descriptions of the convex hull of rotation matrices
Creators: name: Saunderson, James
name: Parrilo, Pablo A.
name: Willsky, Alan S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90C22, 90C25, 52A41, 52A20

description: We study the convex hull of $SO(n)$, thought of as the set of $n\times n$ orthogonal matrices with unit determinant, from the point of view of semidefinite programming. We show that the convex hull of $SO(n)$ is doubly spectrahedral, i.e. both it and its polar have a description as the intersection of a cone of positive semidefinite matrices with an affine subspace. Our spectrahedral representations are explicit, and are of minimum size, in the sense that there are no smaller spectrahedral representations of these convex bodies.
description: 29 pages, 1 figure
Invited review: Graphite and its hidden superconductivity
Creators: name: Esquinazi, Pablo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We review experimental results, from transport to magnetization measurements, on different graphite samples, from bulk oriented graphite, thin graphite films to transmission electron microscope lamellae, that indicate the existence of granular superconductivity at temperatures above 100 K. The accumulated evidence speaks for a localization of the superconducting phase(s) at certain interfaces embedded in semiconducting crystalline regions with Bernal stacking order.
description: 19 pages, 6 figures