cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A catalog of rotational and radial velocities for evolved stars V. Southern stars
Creators: name: De Medeiros, J. R.
name: Alves, S.
name: Udry, S.
name: Andersen, J.
name: Nordström, B.
name: Mayor, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Rotational and radial velocities have been measured for 1589 evolved stars of spectral types F, G and K and luminosity classes IV, III, II and Ib, based on observations carried out with the CORAVEL spectrometers. The precision in radial velocity is better than 0.30 km/s per observation, whereas rotational velocity uncertainties are typically 1.0 km/s for subgiants and giants and 2.0 km/s for class II giants and Ib supergiants.
description: 27 pages, 3 tables -- accepted for publication in A&A (Accepted: 12/10/13)
Eficiencia de las estrategias de mercadotecnia en la industria de la cerveza artesanal de Tijuana, Baja California
Creators: name: González Velásquez, Santiago,
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: Administración||Tesis y disertaciones académicas||Cervecería artesanal||Administración de la produccción||Industria cervecera
subject: HD9397.A2 G65 2022

description: La cerveza artesanal se elabora con una receta propia del “maestro cervecero” dándole un sabor único, con un proceso donde involucra actividades de tipo manual y en ocasiones utilizando maquinaria básica para la fabricación, atendiendo sobre todo el sabor y la textura de la bebida; debido a esto la producción es limitada.
Additional file 8 of Antimicrobial use and production system shape the fecal, environmental, and slurry resistomes of pig farms
Creators: name: Mencía-Ares, Oscar
name: Cabrera-Rubio, Raúl
name: Cobo-Díaz, José Francisco
name: Álvarez-Ordóñez, Avelino
name: Gómez-García, Manuel
name: Puente, Héctor
name: Cotter, Paul D.
name: Crispie, Fiona
name: Carvajal, Ana
name: Rubio, Pedro
name: Argüello, Héctor
Publisher: name: figshare
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 8: Figure S5. Bacterial microbiome composition at family level. A) Alpha diversity of bacterial composition measured by family richness, Inverse Simpson, Shannon and Simpson indexes. These indexes were calculated from the relative abundance matrix and represented as boxplots. Each sample is represented by a dot with horizontal jitter for visibility. The horizontal box lines represent the first quartile, the median, and the third quartile. Whiskers include the range of points within the 1.5 interquartile range. The differences per sample type and per production system within each sample type were evaluated with the Wilcoxon signed-rank test. B) Two-dimension non-metric multidimensional scaling (NMDS) based on Bray-Curtis dissimilarities. Subsampling was carried out by the three types of samples within each production system prior to performing ordination analysis and PERMANOVA. The centroid of each ellipse represents the group mean, and the shape was defined by the covariance within each group. C) Stacked bar plot of the relative abundance of the 20 most abundant bacterial families (colors), per sample (x axis); the less abundant families were grouped into “Others”. n = 105 metagenomes from 38 independent farms. Nineteen metagenomes per production system per sample type were used, with the exception of extensive-slurry (n = 9).
Biogeoquímica de metales traza en sedimentos frente a la costa noroccidental de Baja California, México /
Creators: name: Nava López, María Del Carmen
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: GC117 .T7 N38 2002

description: Los estudios de metales traza que hasta la fecha se han reportado en los sedimentos frente a las costas de Baja California, se han limitado a la determinación de concentraciones totales o la distribución de metales traza en sedimentos superficiales.
Efectos de procesos físicos, químicos y biológicos sobre parámetros del sistema del CO2 en dos regiones costeras :
Creators: name: Hernandez Ayon, Jose Martin
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: GC858 H47 2000

description: En este trabajo se presentan los resultados obtenidos en dos cruceros oceanográficos MEGAMARCO I realizado del 14 al 28 de septiembre de 1996, en el Golfo de California y II AMLR LEGII (Antartic Marine living Resources) realizado del 14 al 24 de marzo 1997 en la región aledaña a la Isla Elefante en la Antártica.
Game of Tones: Faculty detection of GPT-4 generated content in university assessments
Creators: name: Perkins, Mike
name: Roe, Jasper
name: Postma, Darius
name: McGaughran, James
name: Hickerson, Don
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computers and Society (cs.CY)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: K.4

description: This study explores the robustness of university assessments against the use of Open AI's Generative Pre-Trained Transformer 4 (GPT-4) generated content and evaluates the ability of academic staff to detect its use when supported by the Turnitin Artificial Intelligence (AI) detection tool. The research involved twenty-two GPT-4 generated submissions being created and included in the assessment process to be marked by fifteen different faculty members. The study reveals that although the detection tool identified 91% of the experimental submissions as containing some AI-generated content, the total detected content was only 54.8%. This suggests that the use of adversarial techniques regarding prompt engineering is an effective method in evading AI detection tools and highlights that improvements to AI detection software are needed. Using the Turnitin AI detect tool, faculty reported 54.5% of the experimental submissions to the academic misconduct process, suggesting the need for increased awareness and training into these tools. Genuine submissions received a mean score of 54.4, whereas AI-generated content scored 52.3, indicating the comparable performance of GPT-4 in real-life situations. Recommendations include adjusting assessment strategies to make them more resistant to the use of AI tools, using AI-inclusive assessment where possible, and providing comprehensive training programs for faculty and students. This research contributes to understanding the relationship between AI-generated content and academic assessment, urging further investigation to preserve academic integrity.
Additional file 11 of Antimicrobial use and production system shape the fecal, environmental, and slurry resistomes of pig farms
Creators: name: Mencía-Ares, Oscar
name: Cabrera-Rubio, Raúl
name: Cobo-Díaz, José Francisco
name: Álvarez-Ordóñez, Avelino
name: Gómez-García, Manuel
name: Puente, Héctor
name: Cotter, Paul D.
name: Crispie, Fiona
name: Carvajal, Ana
name: Rubio, Pedro
name: Argüello, Héctor
Publisher: name: figshare
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 11: Figure S6. Association between antimicrobial use (AMU) and antimicrobial resistance (AMR). To reveal the association between AMU and AMR, the pairwise Spearman’s rank correlation was calculated for the counts per million matrices at AMR class level. These correlations were carried out for A) all the samples, B) environmental samples, C) faecal samples and D) slurry samples. Correlations were removed if the Spearman correlation coefficient, rs, was lower than 0.4 and the p-value > 0.05, adjusting this p-value to avoid false positives using the Benjamini & Hochberg method. n = 105 metagenomes from 38 independent farms. Nineteen metagenomes per sample type per production system were used, with the exception of extensive-slurry (n = 9). MLSP refers to the macrolides-lincosamides-streptogramins-pleuromutilins AMR class. MLP refers to macrolides-lincosamides-pleuromutilins.
Quantum scrambling via accessible tripartite information
Creators: name: Monaco, Gabriele Lo
name: Innocenti, Luca
name: Cilluffo, Dario
name: Chisholm, Diana A
name: Lorenzo, Salvatore
name: Palma, G Massimo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum information scrambling (QIS), from the perspective of quantum information theory, is generally understood as local non-retrievability of information evolved through some dynamical process, and is often quantified via entropic quantities such as the tripartite information. We argue that this approach comes with a number of issues, in large part due to its reliance on quantum mutual informations, which do not faithfully quantify correlations directly retrievable via measurements, and in part due to the specific methodology used to compute tripartite informations of the studied dynamics. We show that these issues can be overcome by using accessible mutual informations, defining corresponding ``accessible tripartite informations'', and provide explicit examples of dynamics whose scrambling properties are not properly quantified by the standard tripartite information. Our results lay the groundwork for a more profound understanding of what QIS represents, and reveal a number of promising, as of yet unexplored, venues for futher research.
description: 11 pages, 6 figures, comments welcome
Automated mixing of maximally localized Wannier functions into target manifolds
Creators: name: Qiao, Junfeng
name: Pizzi, Giovanni
name: Marzari, Nicola
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Maximally localized Wannier functions (MLWFs) are widely used to construct first-principles tight-binding models that accurately reproduce the electronic structure of materials. Recently, robust and automated approaches to generate these MLWFs have emerged, leading to natural sets of atomic-like orbitals that describe both the occupied states and the lowest-lying unoccupied ones (when the latter can be meaningfully described by bonding/anti-bonding combinations of localized orbitals). For many applications, it is important to instead have MLWFs that describe only certain target manifolds separated in energy between them -- the occupied states, the empty states, or certain groups of bands. Here, we start from the full set of MLWFs describing simultaneously all the target manifolds, and then mix them using a combination of parallel transport and maximal localization to construct orthogonal sets of MLWFs that fully and only span the desired target submanifolds. The algorithm is simple and robust, and it is applied to some paradigmatic but non-trivial cases (the valence and conduction bands of silicon, the top valence band of MoS$_2$, the $3d$ and $t_{2g}$/$e_g$ bands of SrVO$_3$) and to a mid-throughput study of 77 insulators.
description: 12 pages, 6 figures
Additional file 12 of Antimicrobial use and production system shape the fecal, environmental, and slurry resistomes of pig farms
Creators: name: Mencía-Ares, Oscar
name: Cabrera-Rubio, Raúl
name: Cobo-Díaz, José Francisco
name: Álvarez-Ordóñez, Avelino
name: Gómez-García, Manuel
name: Puente, Héctor
name: Cotter, Paul D.
name: Crispie, Fiona
name: Carvajal, Ana
name: Rubio, Pedro
name: Argüello, Héctor
Publisher: name: figshare
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 12: Figure S7. Distribution of the 38 Spanish pig farms sampled throughout Spain grouped by their production system into intensive and extensive.
Diseño de un índice integral (VIP) para evaluar playas recreativas /
Creators: name: Cervantes Rosas, Omar Darío
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: Playas recreativas||Evaluación||Playas recreativas||Normatividad del turismo||Oceanografía costera||Tesis
subject: GB454.B3 C47 2008

description: A pesar de saber que hoy el turismo puede ser sustentable, la economía de mercado prevalece por sobre todo los asuntos ambientales.
Optimal Transport Model Distributional Robustness
Creators: name: Nguyen, Van-Anh
name: Le, Trung
name: Bui, Anh Tuan
name: Do, Thanh-Toan
name: Phung, Dinh
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences

description: Distributional robustness is a promising framework for training deep learning models that are less vulnerable to adversarial examples and data distribution shifts. Previous works have mainly focused on exploiting distributional robustness in the data space. In this work, we explore an optimal transport-based distributional robustness framework in model spaces. Specifically, we examine a model distribution within a Wasserstein ball centered on a given model distribution that maximizes the loss. We have developed theories that enable us to learn the optimal robust center model distribution. Interestingly, our developed theories allow us to flexibly incorporate the concept of sharpness awareness into training, whether it's a single model, ensemble models, or Bayesian Neural Networks, by considering specific forms of the center model distribution. These forms include a Dirac delta distribution over a single model, a uniform distribution over several models, and a general Bayesian Neural Network. Furthermore, we demonstrate that Sharpness-Aware Minimization (SAM) is a specific case of our framework when using a Dirac delta distribution over a single model, while our framework can be seen as a probabilistic extension of SAM. To validate the effectiveness of our framework in the aforementioned settings, we conducted extensive experiments, and the results reveal remarkable improvements compared to the baselines.
description: Accepted at NeurIPs 2023
New Phases in O'Raifeartaigh-like Models and $R$-symmetry Breaking
Creators: name: Vaknin, Talya
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study $\mathcal{N}=1$ models in which supersymmetry and $R$-symmetry are broken spontaneously. We find that even the simplest well-known O'Raifeartaigh-like models exhibit previously unnoticed phases and dynamics. D-terms play an important role in the dynamics, creating a runaway behavior at tree-level which is stabilized radiatively at a large scale. This leads to a dynamically-generated hierarchy of scales. Additionally, this mechanism generically leads to a spontaneously broken $R$-symmetry without fine tuning the couplings of the theory. These are arguably the simplest known models that break the $R$-symmetry spontaneously.
description: 15 pages
Management of Regenerative Braking Energy for Addis Ababa Light Rail Transit System
Creators: name: Mequanint Biazen Ayalew
Publisher: name: Zenodo
Year: 2015

description: Addis Ababa light railway is one of the newly constructing railway transport system in Ethiopia. Urban rail plays a key role in the sustainable development of metropolitan areas for several reasons such as its high capacity, energy efficiency and lack of local air pollution. Electricity has become the primary source of traction power in modern railways. DC-electrification is often used for urban public transport.

Most electric trains in DC-electrified railways are presently equipped with regenerative braking system. Regenerative braking is a means to save energy and reduce maintenance costs in railway industry. Ultra-capacitor is a major promising alternative of energy storage technologies in the urban rail system. Compared to other storage technology, the ultra-capacitor has the advantages of rapid charging and discharging frequencies, a long cycle life and high power density, which highly match the characteristics of urban rail transit such as short running time between stations, frequent accelerating and braking and booming power within a short time.
Gaia photometry for white dwarfs
Creators: name: Carrasco, J. M.
name: Catalán, S.
name: Jordi, C.
name: Tremblay, P. E.
name: Napiwotzki, R.
name: Luri, X.
name: Robin, A. C.
name: Kowalski, P. M
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. White dwarfs can be used to study the structure and evolution of the Galaxy by analysing their luminosity function and initial mass function. Among them, the very cool white dwarfs provide the information for the early ages of each population. Because white dwarfs are intrinsically faint only the nearby (about 20 pc) sample is reasonably complete. The Gaia space mission will drastically increase the sample of known white dwarfs through its 5-6 years survey of the whole sky up to magnitude V = 20-25. Aims. We provide a characterisation of Gaia photometry for white dwarfs to better prepare for the analysis of the scientific output of the mission. Transformations between some of the most common photometric systems and Gaia passbands are derived. We also give estimates of the number of white dwarfs of the different galactic populations that will be observed. Methods. Using synthetic spectral energy distributions and the most recent Gaia transmission curves, we computed colours of three different types of white dwarfs (pure hydrogen, pure helium, and mixed composition with H/He= 0.1). With these colours we derived transformations to other common photometric systems (Johnson-Cousins, Sloan Digital Sky Survey, and 2MASS). We also present numbers of white dwarfs predicted to be observed by Gaia. Results. We provide relationships and colour-colour diagrams among different photometric systems to allow the prediction and/or study of the Gaia white dwarf colours. We also include estimates of the number of sources expected in every galactic population and with a maximum parallax error. Gaia will increase the sample of known white dwarfs tenfold to about 200 000. Gaia will be able to observe thousands of very cool white dwarfs for the first time, which will greatly improve our understanding of these stars and early phases of star formation in our Galaxy.
description: 17 pages, 39 figures
D7.4 Dissemination and Communication Report-v1
Creators: name: Petrocchi, Marinella
name: Ilardia, Maitena
name: Martinez, Cristina Martinez
Publisher: name: Zenodo
Year: 2022
Subjects: Dissemination
communication
networking
social media

description: This deliverable presents the dissemination and communication activities followed during the first reporting period (M01-M18) as well as the results from these activities and will update project’s dissemination and communication plan respectively. This report also contains the relevant activities executed to foster a close collaboration with projects related to MEDINA, as well as future networking plans.
Dilaton gravity, charged dust, and (quasi-) black holes
Creators: name: Bronnikov, K. A.
name: Fabris, J. C.
name: Silveira, R.
name: Zaslavskii, O. B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider Einstein-Maxwell-dilaton gravity with charged dust and interaction of the form $P(χ) F_{μν} F^{μν}$, where $P(χ)$ is an arbitrary function of the dilaton field $χ$ that can be normal or phantom. For any regular $P(χ)$, static configurations are possible with arbitrary functions $g_{00} = \exp(2γ(x^i))$ ($i=1,2,3$) and $χ= χ(γ)$, without any assumption of spatial symmetry. The classical Majumdar-Papapetrou system is restored by putting $χ=$ const. Among possible solutions are black-hole (BH) and quasi-black-hole (QBH) ones. Some general results on BH and QBH properties are deduced and confirmed by examples. It is found, in particular, that asymptotically flat BHs and QBHs can exist with positive energy densities of matter and both scalar and electromagnetic fields.
description: revtex4, 4 pages, 1 figure of 3 parts. A brief presentation of main results (not all) of arXiv:1312.4891
Top Secrets: Long-Lived ALPs in Top Production
Creators: name: Rygaard, Lovisa
name: Niedziela, Jeremi
name: Schäfer, Ruth
name: Bruggisser, Sebastian
name: Alimena, Juliette
name: Westhoff, Susanne
name: Blekman, Freya
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate the discovery potential for long-lived particles produced in association with a top-antitop quark pair at the (High-Luminosity) LHC. Compared to inclusive searches for a displaced vertex, top-associated signals offer new trigger options and an extra handle to suppress background. We design a search strategy for a displaced di-muon vertex in the tracking detectors, in association with a reconstructed top-antitop pair. For axion-like particles with masses above the di-muon threshold, we find that the (High-Luminosity) LHC can probe effective top-quark couplings as small as $|c_{tt}|/f_a = 0.03(0.002)/$TeV and proper decay lengths as long as $20(300)$ m, assuming a cross section of $1$ fb, with data corresponding to an integrated luminosity of 150 fb$^{-1}$ (3 ab$^{-1}$). Our predictions suggest that searches for top-associated displaced di-muons will explore new terrain in the current sensitivity gap between searches for prompt di-muons and missing energy.
Evolution of optical properties of chromium spinels CdCr$_2$O$_4$, HgCr$_2$S$_4$, and ZnCr$_2$Se$_4$ under high pressure
Creators: name: Rabia, K.
name: Baldassarre, L.
name: Deisenhofer, J.
name: Tsurkan, V.
name: Kuntscher, C. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report pressure-dependent reflection and transmission measurements on ZnCr$_2$Se$_4$, HgCr$_2$S$_4$, and CdCr$_2$O$_4$ single crystals at room temperature over a broad spectral range 200-24000 cm$^{-1}$. The pressure dependence of the phonon modes and the high-frequency electronic excitations indicates that all three compounds undergo a pressure-induced structural phase transition with the critical pressure 15 GPa, 12 GPa, and 10 GPa for CdCr$_2$O$_4$, HgCr$_2$S$_4$, and ZnCr$_2$Se$_4$, respectively. The eigenfrequencies of the electronic transitions are very close to the expected values for chromium crystal-field transitions. In the case of the chalcogenides pressure induces a red shift of the electronic excitation which indicates a strong hybridization of the Cr d-bands with the chalcogenide bands.
description: Accepted for publication in Phys. Rev. B
Manipulating Transverse Modes of Photons for Quantum Cryptography
Creators: name: Luda, Marcelo Alejandro
name: Larotonda, Miguel Antonio
name: Paz, Juan Pablo
name: Schmiegelow, Christian Tomás
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Several schemes have been proposed to extend Quantum Key Distribution protocols aiming at improving their security or at providing new physical substrates for qubit implementation. We present a toolbox to jointly create, manipulate and measure qubits stored in polarization and transverse-modes degrees of freedom of single photons. The toolbox includes local operations on single qubits, controlled operations between the two qubits and projective measurements over a wide variety of non-local bases in the four dimensional space of states. We describe how to implement the toolbox to perform an extended version of the BB84 protocol for this Hilbert space (ideally transmitting two key bits per photon). We present the experimental implementation of the measurement scheme both in the regimes of intense light beams and with single photons. Thus, we show the feasibility of implementing the protocol providing an interesting example of a new method for quantum information processing using the polarization and transverse modes of light as qubits.
description: 9 pages, 7 figures, 5 tables
Emergence and spread of tmexCD-toprJ in live poultry market, China
Creators: name: Yin, Yi
name: Gao, Yanyun
Publisher: name: figshare
Year: 2022
Subjects: Other agricultural, veterinary and food sciences not elsewhere classified

description: We isolated 22 tmexCD-toprJ-positive strains among a total 315 non-duplicate samples collected from live poultry markets with diverse resources, of which 12 tmexCD-toprJ-bearing strains were selected for Nanopore sequencing. For further investigation, hybrid assembly was conducted based on Illumina and nanopore sequencing with unicycler.
Machine learning search for stable binary Sn alloys with Na, Ca, Cu, Pd, and Ag
Creators: name: Thorn, Aidan
name: Gochitashvili, Daviti
name: Kharabadze, Saba
name: Kolmogorov, Aleksey N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present our findings of a large-scale screening for new synthesizable materials in five M-Sn binaries, M = Na, Ca, Cu, Pd, and Ag. The focus on these systems was motivated by the known richness of M-Sn properties with potential applications in energy storage, electronics packaging, and superconductivity. For the systematic exploration of the large configuration space, we relied on our recently developed MAISE-NET framework that constructs accurate neural network interatomic potentials and utilizes them to accelerate ab initio global structure searches. The scan of over two million candidate phases at a fraction of the typical ab initio calculation cost has uncovered 29 possible intermetallics thermodynamically stable at different temperatures and pressures (1 bar and 20 GPa). Notable predictions of ambient-pressure materials include a simple hP6-NaSn$_2$ phase, fcc-based Pd-rich alloys, tI36-PdSn$_2$ with a new prototype, and several high-temperature Sn-rich ground states in the Na-Sn, Cu-Sn, and Ag-Sn systems. Our modeling work also involved ab initio (re)examination of previously observed M-Sn compounds that helped explain the entropy-driven stabilization of known Cu-Sn phases. The study demonstrates the benefits of guiding structure searches with machine learning potentials and significantly expands the number of predicted thermodynamically stable crystalline intermetallics achieved with this strategy so far.
Astrophysical parameters of the peculiar X-ray transient IGR J11215-5952
Creators: name: Lorenzo, J.
name: Negueruela, I.
name: Castro, N.
name: Norton, A. J.
name: Vilardell, F.
name: Herrero, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The hard X-ray source IGR J11215-5952 is a peculiar transient, displaying very short X-ray outbursts every 165 days. We obtained high-resolution spectra of the optical counterpart, HD 306414, at different epochs, spanning a total of three months, before and around the 2007 February outburst with the combined aims of deriving its astrophysical parameters and searching for orbital modulation. We fit model atmospheres generated with the fastwind code to the spectrum. We also cross-correlated each individual spectrum to the best-fit model to derive radial velocities. From its spectral features, we classify HD 306414 as B0.5 Ia. From the model fit, we find Teff = 24 700 K and log g = 2.7, in good agreement with the morphological classification. Using the interstellar lines in its spectrum, we estimate a distance to HD 306414 d > 7 kpc. Assuming this distance, we derive R* = 40 Rsol and Mspect = 30 Msol (consistent, within errors, with Mevol = 38 Msol). Radial velocity changes are not dominated by the orbital motion, and we find an upper limit on the semi-amplitude for the optical component Kopt < 11 +- 6 km/s. Large variations in the depth and shape of photospheric lines suggest the presence of strong pulsations, which may be the main cause of the radial velocity changes. Very significant variations, uncorrelated with those of the photospheric lines are seen in the shape and position of the Halpha emission feature around the time of the X-ray outburst, but large excursions are also observed at other times. HD 306414 is a normal B0.5 Ia supergiant. Its radial velocity curve is dominated by an effect that is different from binary motion, and is most likely stellar pulsations. The data available suggest that the X-ray outbursts are caused by the close passage of the neutron star in a very eccentric orbit, perhaps leading to localised mass outflow. (abridged).
description: 10 pages, 9 figures, 4 tables
Sobre la influencia de giros de mesoescala en las capturas de atún aleta amarilla (Thunnus albacares) en el Océano Pacífico tropical este /
Creators: name: Manzo Monroy, Héctor Guillermo
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: Atún aleta amarilla||Pesquerías||Oceanografía costera||Tesis
subject: SH351.Y43 M35 2003

description: La distribución del recurso pesquero, atún aleta amarilla (Thunnus albacares) en el Océano Pacífico Tropical Este (OPTE) está determinada por diversos factores oceanográficos-meteorológicos.
Radiative charged-lepton mass generation in multi-Higgs doublet models
Creators: name: Joaquim, F. R.
name: Penedo, J. T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that charged-lepton masses can be radiatively induced in multi-Higgs doublet models (NHDMs) through the renormalization group running of Yukawa couplings from high to low energies. Some extreme examples of electron and muon mass generation are discussed in the context of two and three Higgs doublet models. It is also shown that quantum corrections to the Yukawa couplings can be naturally of the same order as the tree-level values. We also comment on the implications of considering extensions of NHDMs in which right-handed neutrinos are added.
description: 11 LaTeX pages; Comments and references added. Typos corrected
The Weibull Distribution and Benford's Law
Creators: name: Cuff, Victoria
name: Lewis, Allison
name: Miller, Steven J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F05, 11K06 (primary), 60E10, 42A16, 62E15, 62P99

description: Benford's law states that many data sets have a bias towards lower leading digits (about $30\%$ are 1s). There are numerous applications, from designing efficient computers to detecting tax, voter and image fraud. It's important to know which common probability distributions are almost Benford. We show the Weibull distribution, for many values of its parameters, is close to Benford's law, quantifying the deviations. As the Weibull distribution arises in many problems, especially survival analysis, our results provide additional arguments for the prevalence of Benford behavior. The proof is by Poisson summation, a powerful technique to attack such problems.
description: Version 1.0, 13 pages, 2 figures. This work was done at the 2010 SMALL REU at Williams College, and a summary of it will appear in Chapter Three of The Theory and Applications of Benford's Law, PUP (to appear, S. J. Miller, editor). Since this work was written many of these results have been independently derived and applied them to internet traffic; see the work of Arshadi and Jahangir [AJ]
HD100546 Multi-Epoch Scattered-Light Observations
Creators: name: Avenhaus, Henning
name: Quanz, Sascha P.
name: Meyer, Michael R.
name: Brittain, Sean D.
name: Carr, John S.
name: Najita, Joan R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present H, Ks and L filter polarimetric differential imaging (PDI) data for the transitional disk around HD100546 obtained in 2013, together with an improved re-reduction of previously published 2006 data. We reveal the disk in polarized scattered light in all three filters, achieving an inner working angle of 0.1 arcsec. Additional, short-exposure observations in the H and Ks filter probe the surrounding of the star down to about 0.03 (about 3 AU). HD100546 is fascinating because of its variety of sub-structures possibly related to forming planets in the disk, and PDI is currently the best technique to image them in the near-IR. Our key results are: (1) For the first time ever, we detect a disk in L-band PDI data. (2) We constrain the outer radius of the inner hole to 14pm2 AU and its eccentricity to < 0.133. (3) We detect a dark lane in the front side of the disk, which is likely an effect of the scattering angle and the scattering function of the grains. (4) We find a spiral arm in the northeast which has no obvious connection to spiral arms seen before by other authors further out in the disk, but winds in the same direction (clockwise). (5) The two bright scattering peaks along the semi-major axis are asymmetric, with the southeastern one being significantly brighter. This could be related to the inner companion candidate that is close to the brighter side of the disk at the time of the observations. (6) The scattering color is close to grey between H and Ks filter, but the scattering in L filter is significantly weaker. (7) We measure the position angle of the disk to be 138pm3 deg, consistent with previous observations. (8) We derive the dust scattering function in the H and Ks filter between 35 and 130 deg at two different radii (30-50 and 80-110 AU) and show that our results are consistent with a disk that is more strongly flared in the outer regions.
description: 12 pages, 6 figures
Electric dipole moments of the nucleon and light nuclei
Creators: name: Wirzba, Andreas
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The electric dipole moments of the nucleon and light ions are discussed and strategies for disentangling the underlying sources of CP violation beyond the Kobayashi-Maskawa quark-mixing mechanism of the Standard Model are indicated. Contribution to "45 years of nuclear theory at Stony Brook: a tribute to Gerald E. Brown".
description: 14 pages, 2 figures, contribution to "45 years of nuclear theory at Stony Brook: a tribute to Gerald E. Brown"
Additional file 1 of “Who is watching the watchdog?”: ethical perspectives of sharing health-related data for precision medicine in Singapore
Creators: name: Lysaght, Tamra
name: Ballantyne, Angela
name: Xafis, Vicki
name: Serene Ong
name: Schaefer, Gerald Owen
name: Ling, Jeffrey Min Than
name: Newson, Ainsley J.
name: Khor, Ing Wei
name: E. Shyong Tai
Publisher: name: figshare
Year: 2020
Subjects: subject: Biotechnology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. COREX table.
Hall Viscosity and Angular Momentum in Gapless Holographic Models
Creators: name: Liu, Hong
name: Ooguri, Hirosi
name: Stoica, Bogdan
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use the holographic approach to compare the Hall viscosity $η_H$ and the angular momentum density ${\cal J}$ in gapless systems in $2+1$ dimensions at finite temperature. We start with a conformal fixed point and turn on a perturbation which breaks the parity and time reversal symmetries via gauge and gravitational Chern-Simons couplings in the bulk. While the ratio of $η_H$ and ${\cal J}$ shows some universal properties when the perturbation is slightly relevant, we find that the two quantities behave differently in general. In particular, $η_H$ depends only on infrared physics, while ${\cal J}$ receives contributions from degrees of freedom at all scales.
description: 13 pages, 13 figures
Efecto de los ácidos grasos de cadena larga en el crecimiento y metabolismo del abulón azul (Haliotis fulgens) /
Creators: name: Durazo Beltrán, Eduardo
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: Abulones||Cultivo||Abulones Cultivo Aspectos alimenticios||Oceanografía costera||Tesis
subject: SH371.5 D87 2003

description: Con el propósito de aportar mayor conocimiento sobre el efecto y la importancia nutricional de los ácidos grasos instaurados de cadena larga en crecimiento, composición de ácidos grasos instaurados de cadena larga en el crecimiento, composición de ácidos grasos y metabolismo de abulón azul (Haliotis fulgens) se desarrollo este estudio.
In-plane anisotropy of the single-$q$ and multiple-$q$ ordered phases in the antiferromagnetic metal CeRh$_2$Si$_2$ unveiled by the bulk measurements under uniaxial stress and neutron scattering
Creators: name: Saito, Hiraku
name: Kon, Fusako
name: Hidaka, Hiroyuki
name: Amitsuka, Hiroshi
name: Kwanghee, Cho
name: Hagihala, Masato
name: Kamiyama, Takashi
name: Itoh, Shinichi
name: Nakajima, Taro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We performed magnetization, resistivity, and neutron diffraction measurements under uniaxial stress applied along [1-10] direction on the tetragonal magnet CeRh$_2$Si$_2$ with commensurate magnetic orders. CeRh$_2$Si$_2$ has two successive antiferromagnetic (AF) orders in zero magnetic field. The high temperature phase (AF1 phase) has the magnetic modulation wave vector of $q = (\frac{1}{2}, \frac{1}{2}, 0)$, and the low temperature phase (AF2 phase) is characterized by the four $q$-vectors of $q = (\frac{1}{2}, \frac{1}{2}, 0), (\frac{1}{2}, -\frac{1}{2}, 0), (\frac{1}{2}, \frac{1}{2}, \frac{1}{2})$, and $(\frac{1}{2}, -\frac{1}{2}, \frac{1}{2})$. By measuring the uniaxial stress dependence of the magnetization, resistivity and the intensities of magnetic Bragg reflections, we confirmed that the AF1 phase has the single-$q$ magnetic order with two-fold rotational symmetry and the AF2 phase has the multi-$q$ magnetic order with four-fold rotational symmetry. In order to understand the origin of multi-$q$ order of CeRh$_2$Si$_2$, we also performed inelastic neutron scattering measurement on the single crystal samples. We found a magnetic excitation at the transfer energy $\hbar ω\sim$ 8 meV. By applying the linear spin-wave theory, we found that the nearest and the next-nearest neighbor exchange interactions on the $ab$-plane, $J_1$ and $J_2$, are dominant in the AF2 phase. However, the $J_1$-$J_2$ model cannot lift the degeneracy between the single-$q$ (AF1) and multi-$q$ (AF2) phases. We suggest that it can be lifted by taking into account the biquadratic interaction derived from the perturbative expansion for the Kondo lattice Hamiltonian. [S. Hayami et al., Phys. Rev. B 95, 224424 (2017).
description: 7 pages, 7 figures
Análisis biogeográfico, genético y morfométrico de Lyropecten (Nodipecten) subnodosus (Sowerby, 1835) (Mollusca :Bivalvia) en el Pacífico oriental tropical /
Creators: name: Cid Becerra, Jorge Arturo
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: QL430.6 C53 2002

description: Lyropecten (Nodipecten) subnodosus (Sowerby, 1835), es uno de los pectinidos más atractivos y más grandes, de la zona tropical occidental de América.
Four Lectures on Euler Integrals
Creators: name: Matsubara-Heo, Saiei-Jaeyeong
name: Mizera, Sebastian
name: Telen, Simon
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: These lecture notes provide a self-contained introduction to Euler integrals, which are frequently encountered in applications. In particle physics, they arise as Feynman integrals or string amplitudes. Our four selected topics demonstrate the diverse mathematical techniques involved in the study of Euler integrals, including polyhedral geometry, very affine varieties, differential equations, and computational algebra.
description: 48 pages, journal version
Larvas y Postlarvas de camarones Peneidos en el Alto Golfo de California y capturas de camarón con relación al flujo del Río Colorado /
Creators: name: Galindo Bect, Manuel Salvador
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: Decápodos (Crustáceos)||Baja California||Camarones Larvas||Oceanología||Tesis
subject: QL444.M33 G35 2003

description: El Alto Golfo De California (AGC) y el delta del Río Colorado son conocidas como áreas de reproducción y crianza de muchas especias de crustáceos y peces, sin embargo, son pocos los trabajos publicados que sustenten tal afirmación.
Experimental Determination of the Antineutrino Spectrum of the Fission Products of $^{238}$U
Creators: name: Haag, N.
name: Gütlein, A.
name: Hofmann, M.
name: Oberauer, L.
name: Potzel, W.
name: Schreckenbach, K.
name: Wagner, F. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: An experiment was performed at the scientific neutron source FRM II in Garching to determine the cumulative antineutrino spectrum of the fission products of $^{238}$U. This was achieved by irradiating target foils of natural uranium with a thermal and a fast neutron beam and recording the emitted $β$-spectra with a gamma-suppressing electron-telescope. The obtained $β$-spectrum of the fission products of $^{235}$U was normalized to the data of the magnetic spectrometer BILL of $^{235}$U. This method strongly reduces systematic errors in the $^{238}$U measurement. The $β$-spectrum of $^{238}$U was converted into the corresponding antineutrino spectrum. The final $\barν_e$-spectrum is given in 250 keV bins in the range from 2.875 MeV to 7.625 MeV with an energy-dependent error of 3.5 % at 3 MeV, 7.6 % at 6 MeV and $\gtrsim$ 14 % at energies $\gtrsim$ 7 MeV (68 % confidence level). Furthermore, an energy-independent uncertainty of $\sim$ 3.3 % due to the absolute normalization is added. Compared to the generally used summation calculations, the obtained spectrum reveals a slight spectral distortion of $\sim$ 10 % but returns the same value for the mean cross section per fission for the inverse beta decay.
Primordial gravitational waves in the nano-Hertz regime and PTA data -- towards solving the GW inverse problem
Creators: name: Madge, Eric
name: Morgante, Enrico
name: Puchades-Ibáñez, Cristina
name: Ramberg, Nicklas
name: Ratzinger, Wolfram
name: Schenk, Sebastian
name: Schwaller, Pedro
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In recent years, several pulsar timing array collaborations have reported first hints for a stochastic gravitational wave background at nano-Hertz frequencies. Here we elaborate on the possibility that this signal comes from new physics that leads to the generation of a primordial stochastic gravitational wave background. We propose a set of simple but concrete models that can serve as benchmarks for gravitational waves sourced by cosmological phase transitions, domain wall networks, cosmic strings, axion dynamics, or large scalar fluctuations. These models are then confronted with pulsar timing data and with cosmological constraints. With only a limited number of free parameters per model, we are able to identify viable regions of parameter space and also make predictions for future astrophysical and laboratory tests that can help with model identification and discrimination.
description: 26 pages + appendix, 17 figures; v3: references added; v4: minor changes, published version
Aproximación conceptual y operativa para el análisis de la zona costera de México :
Creators: name: Escofet, Anamaría
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: Costas México||Oceanografía costera||Tesis
subject: GB458.85 E82 2004

description: El propósito de esta tesis fue utilizar un enfoque sistématico-paisajístico para analizar escalas los elementos de Espacio de Zona Costera, EZC, y relacionar los resultados con aplicaciones de manejo.
Computer-Aided Discovery and Categorisation of Personality Axioms
Creators: name: Kramer, Simon
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Computers and Society (cs.CY)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We propose a computer-algebraic, order-theoretic framework based on intuitionistic logic for the computer-aided discovery of personality axioms from personality-test data and their mathematical categorisation into formal personality theories in the spirit of F.~Klein's Erlanger Programm for geometrical theories. As a result, formal personality theories can be automatically generated, diagrammatically visualised, and mathematically characterised in terms of categories of invariant-preserving transformations in the sense of Klein and category theory. Our personality theories and categories are induced by implicational invariants that are ground instances of intuitionistic implication, which we postulate as axioms. In our mindset, the essence of personality, and thus mental health and illness, is its invariance. The truth of these axioms is algorithmically extracted from histories of partially-ordered, symbolic data of observed behaviour. The personality-test data and the personality theories are related by a Galois-connection in our framework. As data format, we adopt the format of the symbolic values generated by the Szondi-test, a personality test based on L.~Szondi's unifying, depth-psychological theory of fate analysis.
description: related to arXiv:1403.2000