cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
DA White Dwarfs in the Kepler Field
Creators: name: Doyle, T. F.
name: Howell, S. B.
name: Petit, V.
name: Lepine, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present 16 new, and confirm 7 previously identified, DA white dwarfs in the Kepler field through ground-based spectroscopy with the Hale 200", Kitt Peak 4-meter, and Bok 2.3-meter telescopes. Using atmospheric models we determine their effective temperatures and surface gravities to constrain their position with respect to the ZZ Ceti (DA pulsator) instability strip, and look for the presence or absence of pulsation with Kepler's unprecedented photometry. Our results are as follows: i) From our measurements of temperature and surface gravity, 12 of the 23 DA white dwarfs from this work fall well outside of the instability strip. The Kepler photometry available for 11 of these WDs allows us to confirm that none are pulsating. One of these eleven happens to be a presumed binary, KIC 11604781, with a period of ~5 days. ii) The remaining 11 DA white dwarfs are instability strip candidates, potentially falling within the current, empirical instability strip, after accounting for uncertainties. These WDs will help constrain the strip's location further, as eight are near the blue edge and three are near the red edge of the instability strip. Four of these WDs do not have Kepler photometry, so ground-based photometry is needed to determine the pulsation nature of these white dwarfs. The remaining seven have Kepler photometry available, but do not show any periodicity on typical WD pulsation timescales.
description: 48 total pages (27 pages, additional pages are additional figures), 26 figures, Monthly Notices of the Royal Astronomical Society 2016
Improving LSHADE by means of a pre-screening mechanism
Creators: name: Zaborski, Mateusz
name: Mańdziuk, Jacek
Publisher: name: arXiv
Year: 2022
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Evolutionary algorithms have proven to be highly effective in continuous optimization, especially when numerous fitness function evaluations (FFEs) are possible. In certain cases, however, an expensive optimization approach (i.e. with relatively low number of FFEs) must be taken, and such a setting is considered in this work. The paper introduces an extension to the well-known LSHADE algorithm in the form of a pre-screening mechanism (psLSHADE). The proposed pre-screening relies on the three following components: a specific initial sampling procedure, an archive of samples, and a global linear meta-model of a fitness function that consists of 6 independent transformations of variables. The pre-screening mechanism preliminary assesses the trial vectors and designates the best one of them for further evaluation with the fitness function. The performance of psLSHADE is evaluated using the CEC2021 benchmark in an expensive scenario with an optimization budget of 10^2-10^4 FFEs per dimension. We compare psLSHADE with the baseline LSHADE method and the MadDE algorithm. The results indicate that with restricted optimization budgets psLSHADE visibly outperforms both competitive algorithms. In addition, the use of the pre-screening mechanism results in faster population convergence of psLSHADE compared to LSHADE.
description: Accepted at Genetic and Evolutionary Computation Conference (GECCO'22)
The strong coupling from hadronic $τ$ decays: a critical appraisal
Creators: name: Boito, Diogo
name: Golterman, Maarten
name: Maltman, Kim
name: Peris, Santiago
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Several different analysis methods have been developed to determine the strong coupling via finite-energy sum-rule analyses of hadronic $τ$ decay data. While most methods agree on the existence of the well-known ambiguity in the choice of a resummation scheme due to the slow convergence of QCD perturbation theory at the $τ$ mass, there is an ongoing controversy over how to deal properly with non-perturbative effects. These are small, but not negligible, and include quark-hadron "duality violations" (i.e., resonance effects) which are not described by the operator product expansion (OPE). In one approach, an attempt is made to suppress duality violations enough that they might become negligible. The number of OPE parameters to be fit, however, then exceeds the number of available sum rules, necessitating an uncontrolled OPE truncation, in which a number of higher-dimension OPE contributions in general present in QCD are set to zero by hand. In the second approach, truncation of the OPE is avoided by construction, and duality violations are taken into account explicitly, using a physically motivated model. In this article, we provide a critical appraisal of a recent analysis employing the first approach and demonstrate that it fails to properly account for non-perturbative effects, making the resulting determination of the strong coupling unreliable. The second approach, in contrast, passes all self-consistency tests, and provides a competitive determination of the strong coupling from $τ$ decays.
description: 30 pages, 10 figures, layout issue in subsection header fixed
Balancing Comfort and Protection in Clothing: Cool, Dry, and Safe in Harsh Environments
Creators: name: Georgievska, Magdalena
name: Malengier, Benny
name: Van Langenhove, Lieva
Publisher: name: Zenodo
Year: 2022

description: Clothing for personal protection can seriously compromise the comfort of a person and his physical and psychological states. New materials with smart moisture and heat management need to be integrated into clothing for better local and individual thermoregulation.
 Textiles can be functionalized with passive and active cooling mechanisms, the latter having greater cooling power if they rely on an external power supply. While the least amount of studies is done on active moisture management for cooling in clothing, sweat removal is equally important as temperature, especially in cases such as military uniforms, where less permeable, protective outer layers must be worn. This study includes developing textile systems for efficient sweat removal in situations where it is restricted through clothing or the environment, by utilizing the electroosmotic effect.
Digital psychosocial intervention for depression among older adults in socioeconomically deprived areas in Brazil (PRODIGITAL-D): protocol for an individually randomised controlled trial
Creators: name: Nakamura, Carina Akemi
name: Scazufca, Marcia
name: Moretti, Felipe Azevedo
name: Didone, Thiago Vinicius Nadaleto
name: Mendes de Sá Martins, Mariana
name: Aragoni Pereira, Luara
name: Souza, Caio Hudson Queiroz de
name: Macias de Oliveira, Gabriel
name: Oliveira da Costa, Marcelo
name: Machado, Marcelo
name: da Silva Bitencourt, Evelyn
name: Souza dos Santos, Monica
name: Murdoch, Jamie
name: VAN DE VEN, PEPIJN
name: Seward, Nadine
name: Hollingworth, William
name: Peters, Tim J.
name: Araya, Ricardo
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Health sciences
subject: FOS: Health sciences

description: Background: Depression in older adults is a challenge for health systems in most low- and middle-income countries (LMICs). Digital strategies for the management of this condition have been emerging worldwide, but the efectiveness of most of them is still unclear, especially among older adults. Thus, we aim to assess the efectiveness and cost-efectiveness of a digital psychosocial intervention to treat depression among older adults living in socioeconomically deprived areas in Guarulhos, Brazil. Methods: We will conduct a two-arm individually randomised controlled trial with 1:1 allocation ratio. Five hundred older adults aged 60 years or over with depressive symptomatology (9-item Patient Health Questionnaire score, PHQ-9 ≥ 10) and registered with one of the primary care clinics will be recruited to participate in this study. A 6-week digital psychosocial programme, named Viva Vida, will be delivered via WhatsApp to participants allocated to the intervention arm. The Viva Vida will send psychoeducational and behavioural activation audio and visual messages 4 days a week for 6 weeks. The control arm will only receive a single message with general information about depression. The primary outcome will be the proportion of depression recovery (PHQ-9 < 10) assessed at 3 months. The cost-efectiveness of the intervention will be assessed at 5 months. A detailed process evaluation will be used to explore context and important implementation outcomes. Discussion: This programme was based on the PROACTIVE intervention and designed to be delivered without face-to-face contact. If efective, it could be a simple treatment option, appropriate not only when social distancing is required, but it could also be included as a regular public health programme to initiate depression treatment, particularly in LMICs where resources allocated to mental health are scarce.
Carollia castanea H. Allen 1890
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Carollia
Carollia castanea

description: Carollia castanea H. Allen, 1890. Proc. Am. Philos. Soc., 28: 19. TYPE LOCALITY: Costa Rica, Angostura. DISTRIBUTION: Honduras to Peru, Bolivia, Venezuela and Guianas. ISIS NUMBER: 5301405008021002001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 153, DOI: 10.5281/zenodo.7352990
Spinodal instabilities of baryon-rich quark matter in heavy ion collisions
Creators: name: Li, Feng
name: Ko, Che-Ming
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using the test-particle method to solve the transport equation derived from the Nambu-Jona-Lasino (NJL) model, we study how phase separation occurs in an expanding quark matter like that in a heavy ion collision. To test our method, we first investigate the growth rates of unstable modes of quark matter in a static cubic box and find them to agree with the analytical results that were previously obtained using the linear response theory. In this case, we also find the higher-order scaled density moments to increase with time and saturate at values significantly larger than one, which corresponds to a uniform density distribution, after the phase separation. The skewness of the quark number event-by-event distribution in a small sub-volume of the system is also found to increase, but this feature disappears if the sub-volume is large. For the expanding quark matter, two cases are considered with one using a blast-wave model for the initial conditions and the other using initial conditions from a mulple-phase transport (AMPT) model. In both cases, we find the expansion of the quark matter is slowed down by the presence of a first-order phase transition. Also, density clumps appear in the system and the momentum distribution of partons becomes anisotropic , which can be characterized by large scaled density moments and non-vanishing anisotropic elliptic and quadrupolar flows, respectively. The large density fluctuations further lead to an enhancement in the dilepton yield. In the case with the AMPT initial conditions, the presence of a first-order phase transition also results in a narrower rapidity distribution of partons after their freeze out. These effects of density fluctuations can be regarded as possible signals for a first-order phase transition that occurs in the baryon-rich quark matter formed in relativistic heavy ion collisions.
description: 13 pages, 20 figures
Forecasting new diseases in low-data settings using transfer learning
Creators: name: Roster, Kirstin
name: Connaughton, Colm
name: Rodrigues, Francisco A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Recent infectious disease outbreaks, such as the COVID-19 pandemic and the Zika epidemic in Brazil, have demonstrated both the importance and difficulty of accurately forecasting novel infectious diseases. When new diseases first emerge, we have little knowledge of the transmission process, the level and duration of immunity to reinfection, or other parameters required to build realistic epidemiological models. Time series forecasts and machine learning, while less reliant on assumptions about the disease, require large amounts of data that are also not available in early stages of an outbreak. In this study, we examine how knowledge of related diseases can help make predictions of new diseases in data-scarce environments using transfer learning. We implement both an empirical and a theoretical approach. Using empirical data from Brazil, we compare how well different machine learning models transfer knowledge between two different disease pairs: (i) dengue and Zika, and (ii) influenza and COVID-19. In the theoretical analysis, we generate data using different transmission and recovery rates with an SIR compartmental model, and then compare the effectiveness of different transfer learning methods. We find that transfer learning offers the potential to improve predictions, even beyond a model based on data from the target disease, though the appropriate source disease must be chosen carefully. While imperfect, these models offer an additional input for decision makers during pandemic response.
All-optical sampling and magnification based on XPM-induced focusing
Creators: name: Nuno, J.
name: Gilles, M.
name: Guasoni, M.
name: Finot, C.
name: Fatome, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We theoretically and experimentally investigate the design of an all-optical noiseless magnification and sampling function free from any active gain medium and associated high-power continuous wave pump source. The proposed technique is based on the co-propagation of an arbitrary shaped signal together with an orthogonally polarized intense fast sinusoidal beating within a normally dispersive optical fiber. Basically, the strong nonlinear phase shift induced by the sinusoidal pump beam on the orthogonal weak signal through cross-phase modulation turns the defocusing regime into localized temporal focusing effects. This periodic focusing is then responsible for the generation of a high-repetition-rate temporal comb upon the incident signal whose amplitude is directly proportional to its initial shape. This internal redistribution of energy leads to a simultaneous sampling and magnification of the signal intensity profile. This process allows us to experimentally demonstrate a 40-GHz sampling operation as well as an 8-dB magnification of an arbitrary shaped nanosecond signal around 1550 nm in a 5-km long normally dispersive fiber. The experimental observations are in quantitative agreement with numerical and theoretical analysis.
Carollia perspicillata
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Carollia
Carollia perspicillata

description: Carollia perspicillata (Linnaeus, 1758). Syst. Nat., 10th ed., 1:31. TYPE LOCALITY: Surinam. DISTRIBUTION: Veracruz and Yucatan Peninsula (Mexico) to Peru, Bolivia, Paraguay, S.E. Brazil and Guianas; Trinidad; Tobago; Grenada (Lesser Antilles); perhaps Jamaica, N. Lesser Antilles. Paraguay (JRT). COMMENT: Includes tricolor; see Pine, 1972, Tech. Monogr. Texas Agric. Exp. Sta. Texas A and M Univ., 8: 1 -125. ISIS NUMBER: 5301405008021003001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 153, DOI: 10.5281/zenodo.7352990
description: {"references": ["Pine, R. H. 1972. The bats of the genus Carollia. Technical Monograph, Texas Agricultural Experiment Station, Texas A and M University, 8: 1 - 125."]}
Avoiding the Great Filter: Predicting the Timeline for Humanity to Reach Kardashev Type I Civilization
Creators: name: Jiang, Jonathan H.
name: Feng, Fuyang
name: Rosen, Philip E.
name: Fahy, Kristen A.
name: Zhang, Antong
name: Obacz, Piotr
name: Das, Prithwis
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: The level of technological development of any civilization can be gaged in large part by the amount of energy they produce for their use, but also encompasses that civilization's stewardship of their home world. Following the Kardashev definition, a Type I civilization is able to store and use all the energy available on its planet. In this study, we develop a model based on Carl Sagan's K formula and use this model to analyze the consumption and energy supply of the three most important energy sources: fossil fuels (e.g., coal, oil, natural gas, crude, NGL and feedstocks), nuclear energy and renewable energy. We also consider environmental limitations suggested by United Nations Framework Convention on Climate Change, the International Energy Agency, and those specific to our calculations to predict when humanity will reach the level of a Kardashev scale Type I civilization. Our findings suggest that the best estimate for this day will not come until year 2371.
description: 15 pages, 7 figures, submitted to journal galaxies, currently under peer-review
Carollia subrufa
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Carollia
Carollia subrufa

description: Carollia subrufa (Hahn, 1905). Proc. Biol. Soc. Wash., 18:247. TYPE LOCALITY: Mexico, Oaxaca, N.W. Tapanatepec, Sta. Efigenia. DISTRIBUTION: Jalisco (Mexico) to N.W. Nicaragua. COMMENT: Not a subspecies of castanea; see Pine, 1972, Tech. Monogr. Texas Agric. Exp. Sta. Texas A and M Univ., 8: 1 -125. ISIS NUMBER: 5301405008021004001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 153, DOI: 10.5281/zenodo.7352990
description: {"references": ["Pine, R. H. 1972. The bats of the genus Carollia. Technical Monograph, Texas Agricultural Experiment Station, Texas A and M University, 8: 1 - 125."]}
Factors affecting the distribution of cetaceans in European Atlantic waters
Creators: name: Lacey, Claire
Publisher: name: The University of St Andrews
Year: 2023
Subjects: subject: Cetacean
subject: Abundance
subject: Density surface model
subject: Habitat model
subject: Survey
subject: European Atlantic
subject: QL737.C4L2
subject: Cetacea--Monitoring

description: The waters of the European North Atlantic are subject to an increasing amount of anthropogenic pressure. Much of the environmental legislation designed to protect cetaceans requires detailed knowledge of the abundance and distribution of cetaceans within these waters. This data often comes from large-scale surveys. Data from two such series of surveys, spanning two time periods: the SCANS-II and CODA surveys in 2005/07 and the SCANS-III and ObSERVE surveys in 2016 were analysed using Generalised Additive Models to describe relationships between cetacean density and static and remotely accessed dynamic environmental features. Predictive models using spatial covariates as well as environmental predictors were created for the entire survey area using the most recently available data. This was done to conduct a “baseline” snapshot, representing the best possible picture of cetacean distribution for the summer of 2016. Subsequent chapters focus on specific ecoregions. These regions of relatively homogeneous habitat were selected with the aim of finding the best environmental predictors of genuine ecological relationships. In the North Sea ecoregion, models for harbour porpoise, minke whale, and white-beaked dolphin were also constructed using additional prey data available only for this region. This was found to be no better than modelling only environmental covariates. Depth was one of the most commonly retained covariates for all three species in this ecoregion. White-sided, bottlenose, common and striped dolphins and fin whale were investigated in the Celtic Seas, and Bay of Biscay and Iberian Peninsula ecoregions. Despite these two ecoregions being quite different, in most cases, model fits did not improve by including ecoregion as a factor covariate, suggesting that relationships between species and their environment were similar across both regions.
The {\tt Mathematica} package {\tt TopoID} and its application to the Higgs boson production cross section
Creators: name: Hoff, Jens
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the {\tt Mathematica} package {\tt TopoID} which aims at the automation of several steps in multiloop calculations. The algorithm which lies at the very core of the package is described and illustrated with an example. The main features of {\tt TopoID} are stated and some of them are briefly demonstrated for NLO or NNLO Higgs boson production.
description: 5 pages, 1 figure, contribution to the proceedings of ACAT, 18 - 22 January 2016, UTFSM, Valparaiso, Chile v2: updated references, added preprint number DESY 16-036
A Machine Learning Tutorial for Operational Meteorology, Part I: Traditional Machine Learning
Creators: name: Chase, Randy J.
name: Harrison, David R.
name: Burke, Amanda
name: Lackmann, Gary M.
name: McGovern, Amy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Recently, the use of machine learning in meteorology has increased greatly. While many machine learning methods are not new, university classes on machine learning are largely unavailable to meteorology students and are not required to become a meteorologist. The lack of formal instruction has contributed to perception that machine learning methods are 'black boxes' and thus end-users are hesitant to apply the machine learning methods in their every day workflow. To reduce the opaqueness of machine learning methods and lower hesitancy towards machine learning in meteorology, this paper provides a survey of some of the most common machine learning methods. A familiar meteorological example is used to contextualize the machine learning methods while also discussing machine learning topics using plain language. The following machine learning methods are demonstrated: linear regression; logistic regression; decision trees; random forest; gradient boosted decision trees; naive Bayes; and support vector machines. Beyond discussing the different methods, the paper also contains discussions on the general machine learning process as well as best practices to enable readers to apply machine learning to their own datasets. Furthermore, all code (in the form of Jupyter notebooks and Google Colaboratory notebooks) used to make the examples in the paper is provided in an effort to catalyse the use of machine learning in meteorology.
Centurio Gray 1842
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Centurio

description: Centurio Gray, 1842. Ann. Mag. Nat. Hist., ser. 1, 10: 259. REVIEWED BY: B. Villa-Ramirez (BVR). ISIS NUMBER: 5301405008028000000.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 153, DOI: 10.5281/zenodo.7352990
Eventful Evolution of Giant Molecular Clouds in Dynamically Evolving Spiral Arms
Creators: name: Baba, Junichi
name: Morokuma-Matsui, Kana
name: Saitoh, Takayuki R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The formation and evolution of giant molecular clouds (GMCs) in spiral galaxies have been investigated in the traditional framework of the combined quasi-stationary density wave and galactic shock model. However, our understanding of the dynamics of spiral arms is changing from the traditional spiral model to a dynamically evolving spiral model. In this study, we investigate the structure and evolution of GMCs in a dynamically evolving spiral arm using a three-dimensional N-body/hydrodynamic simulation of a barred spiral galaxy at parsec-scale resolution. This simulation incorporated self-gravity, molecular hydrogen formation, radiative cooling, heating due to interstellar far-ultraviolet radiation, and stellar feedback by both HII regions and Type-II supernovae. In contrast to a simple expectation based on the traditional spiral model, the GMCs exhibited no systematic evolutionary sequence across the spiral arm. Our simulation showed that the GMCs behaved as highly dynamic objects with eventful lives involving collisional build-up, collision-induced star formation, and destruction via stellar feedback. The GMC lifetimes were predicted to be short, only a few tens of millions years. We also found that, at least at the resolutions and with the feedback models used in this study, most of the GMCs without HII regions were collapsing, but half of the GMCs with HII regions were expanding owing to the HII-region feedback from stars within them. Our results support the dynamic and feedback-regulated GMC evolution scenario. Although the simulated GMCs were converging rather than virial equilibrium, they followed the observed scaling relationship well. We also analysed the effects of galactic tides and external pressure on GMC evolution and suggested that GMCs cannot be regarded as isolated systems since their evolution in disc galaxies is complicated because of these environmental effects.
description: 19 pages, 16 figures. Accepted for publication in MNRAS
Charge-density waves in kagome-lattice extended Hubbard models at the van Hove filling
Creators: name: Ferrari, Francesco
name: Becca, Federico
name: Valentí, Roser
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Hubbard model on the kagome lattice is presently often considered as a minimal model to describe the rich low-temperature behavior of AV$_{3}$Sb$_{5}$ compounds (with A=K, Rb, Cs), including charge-density waves (CDWs), superconductivity, and possibly broken time-reversal symmetry. Here, we investigate, via variational Jastrow-Slater wave functions, the properties of its ground state when both onsite $U$ and nearest-neighbor $V$ Coulomb repulsions are considered at the van Hove filling. Our calculations reveal the presence of different interaction-driven CDWs and, contrary to previous renormalization-group studies, the absence of ferromagnetism and charge- or spin-bond order. No signatures of chiral phases are detected. Remarkably, the CDWs triggered by the nearest-neighbor repulsion possess charge disproportionations that are not compatible with the ones observed in AV$_{3}$Sb$_{5}$. As an alternative mechanism to stabilize charge-bond order, we consider the electron-phonon interaction, modeled by coupling the hopping amplitudes to quantum phonons, as in the Su-Schrieffer-Heeger model. Our results show the instability towards a tri-hexagonal distortion with $2\times 2$ periodicity, in a closer agreement with experimental findings.
Yim_EssaysOnLaborAndEducationEconomics.pdf
Creators: name: Yim, Lokting
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Labour economics
Higher education
Education policy

description: My dissertation consists of three chapters in the field of labor and education economics. The first chapter studies the impact of early morning classes on students’ educational trajectories. The second chapter explores how college course shutouts affects students’ educational outcomes. The third chapter investigates the impact of kindness on wage returns.
Centurio senex Gray 1842
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Centurio
Centurio senex

description: Centurio senex Gray, 1842. Ann. Mag. Nat. Hist., ser. 1, 10:259. TYPE LOCALITY: Nicaragua, Chinandega, Realejo. DISTRIBUTION: Venezuela to Tamaulipas and Sinaloa (Mexico); Trinidad; Tobago. COMMENT: Reviewed by Paradiso, 1967, Mammalia, 31: 595-604; Snow, et al., 1980, Mamm. Species, 138:1-3. ISIS NUMBER: 5301405008028001001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on pages 153-154, DOI: 10.5281/zenodo.7352990
description: {"references": ["Paradiso, J. L. 1967. A review of the wrinkle-faced bats (Centurio senex Gray), with description of a new subspecies. Mammalia, 31: 595 - 604."]}
Decoding the double heavy tetraquark state $T^+_{cc}$
Creators: name: Deng, Cheng-Rong
name: Zhu, Shi-Lin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyse the deuteron-like $T^+_{cc}$ state observed by the LHCb Collaboration from the perspective of the quark clustering. The $T^+_{cc}$ state implies the possible existence of other compact doubly heavy tetraquark states.
description: 4 pages, 3 tables, comments are welcome
Stellar magnetism, winds and their effects on planetary environments
Creators: name: Vidotto, A. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Here, I review some recent works on magnetism of cool, main-sequence stars, their winds and potential impact on surrounding exoplanets. The winds of these stars are very tenuous and persist during their lifetime. Although carrying just a small fraction of the stellar mass, these magnetic winds carry away angular momentum, thus regulating the rotation of the star. Since cool stars are likely to be surrounded by planets, understanding the host star winds and magnetism is a key step towards characterisation of exoplanetary environments. As rotation and activity are intimately related, the spin down of stars leads to a decrease in stellar activity with age. As a consequence, as stars age, a decrease in high-energy (X-ray, extreme ultraviolet) irradiation is observed, which can a ect the evaporation of exoplanetary atmospheres and, thus, also altering exoplanetary evolution.
description: 6 pages, 5 figures. To appear in the proceedings of "The 19th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun" (ed. G. A. Feiden), Uppsala, Sweden, 06-10 June 2016. This article is based on my invited plenary talk
Nematic fluctuations in the non-superconducting iron pnictide BaFe$_{1.9-x}$Ni$_{0.1}$Cr$_{x}$As$_{2}$
Creators: name: Gong, Dongliang
name: Yi, Ming
name: Wang, Meng
name: Xie, Tao
name: Zhang, Wenliang
name: Danilkin, Sergey
name: Deng, Guochu
name: Liu, Xinzhi
name: Park, Jitae T.
name: Ikeuchi, Kazuhiko
name: Kamazawa, Kazuya
name: Mo, Sung-Kwan
name: Hashimoto, Makoto
name: Lu, Donghui
name: Zhang, Rui
name: Dai, Pengcheng
name: Birgeneau, Robert J.
name: Li, Shiliang
name: Luo, Huiqian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The main driven force of the electronic nematic phase in iron-based superconductors is still under debate. Here, we report a comprehensive study on the nematic fluctuations in a non-superconducting iron pnictide system BaFe$_{1.9-x}$Ni$_{0.1}$Cr$_{x}$As$_{2}$ by electronic transport, angle-resolved photoemission spectroscopy (ARPES) and inelastic neutron scattering (INS) measurements. Previous neutron diffraction and transport measurements suggested that the collinear antiferromagnetism persists to $x=0.8$, with similar Néel temperature $T_N$ and structural transition temperature $T_s$ around 32 K, but the charge carriers change from electron type to hole type around $x=$ 0.5. In this study, we have found that the in-plane resistivity anisotropy also highly depends on the Cr dopings and the type of charge carriers. While ARPES measurements suggest possibly weak orbital anisotropy onset near $T_s$ for both $x=0.05$ and $x=0.5$ compounds, INS experiments reveal clearly different onset temperatures of low-energy spin excitation anisotropy, which is likely related to the energy scale of spin nematicity. These results suggest that the interplay between the local spins on Fe atoms and the itinerant electrons on Fermi surfaces is crucial to the nematic fluctuations of iron pnictides, where the orbital degree of freedom may behave differently from the spin degree of freedom, and the transport properties are intimately related to the spin dynamics.
description: 12 pages, 8 figures. Frontiers in Physics: Topic "Nematicity in Iron-Based Superconductors"
Apresentação
Creators: name: Paranhos, William Roslindo
name: Iantas, Isabel Ceccon
name: De Souza, Kleire Anny Pires
name: Melo, Rogério
name: De Andrade Ribeiro, Raphael
name: França, Wezelley Campos
name: Shihadeh, Nizar Amin
name: Da Silva, Anabella Pavão
Publisher: name: Zenodo
Year: 2023
Subjects: Apresentação
COR LGBTQIA+
Direitos Humanos

description: Estaríamos vivendo um período de “guerra”? A luta já se encerrou ou vivemos um período de trégua? Chamar os últimos momentos que enfrentamos de “guerra” não seria demasiado exagero? Quando pensamos nesta 4ª edição, nos pusemos a refletir sobre várias questões. Porém, o que gritava em nós era o período que atravessávamos: as eleições de 2022. Nossa postura foi, é, e sempre será, marcadamente política, pois não percebemos outra maneira de nos colocarmos no mundo senão essa. Apesar de serem as eleições caracterizadas, também, pelo partidarismo, o último pleito colocava muitas outras questões acima da escolha por A ou B. Fomos às ruas, e às urnas, escolher entre nossas vidas ou nossas mortes. Durante os últimos seis anos, após o Golpe sofrido pela então presidenta, Dilma Rousseff, vivemos tempos sombrios, onde o medo nos assolava. Nossos direitos - pouquíssimos - até então conquistados, nos eram usurpados. A crueldade nos discursos, nos atos, no parlatório, na TV, nos grupos de WhatsApp, tornaram-se “comuns” e foram normalizados. Coincidência, ou não, o assassinato de pessoas trans ganhou força e atingiu números alarmantes, mantendo o Brasil no primeiro lugar do ranking de países que mais matam essa população (BENEVIDES, 2023). O que dizer, então, do GENOCÍDIO que assistimos durante a pandemia do Covid-19? Foram quase 700 MIL MORTES, das quais muitas poderiam ter sido evitadas se o governo anterior tivesse valorizado a vida (REINACH, 2022). Mas, de que vidas estamos falando? Daquelas que, por privilégio, puderam viajar para o exterior e se imunizarem, ou das vidas pobres, periféricas, negras, vulneráveis, subalternizadas (SPIVAK, 2018) que aguardavam, ansiosamente, por uma vacina que pudesse lhes resguardar?
description: {"references": ["PARANHOS, William Roslindo; IANTAS, Isabel Ceccon; SOUZA, Kleire Anny Pires de; MELO, Rog\u00e9rio; RIBEIRO, Raphael de Andrade; FRAN\u00c7A, Wezelley Campos; SHIHADEH, Nizar Amin; SILVA, Anabella Pav\u00e3o da. Apresenta\u00e7\u00e3o. Revista Cor Lgbtqia+, Curiba, v. 1, n. 4, p. 6-14, 13 mar. 2023"]}
The ringing of quantum corrected Schwarzschild black hole with GUP
Creators: name: Xing, Yujia
name: Yang, Yi
name: Liu, Dong
name: Long, Zheng-Wen
name: Xu, Zhaoyi
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Schwarzschild black holes with quantum corrections are studied under scalar field perturbations and electromagnetic field perturbations to analyze the effect of the correction term on the potential function and quasinormal mode (QNM). In classical general relativity, spacetime is continuous and there is no existence of the so-called minimal length. The introduction of the correction items of the generalized uncertainty principle (GUP), the parameter $β$, can change the singularity structure of the black hole gauge and may lead to discretization in time and space. We apply the sixth-order WKB method to approximate the QNM of Schwarzschild black holes with quantum corrections and perform numerical analysis to derive the results of the method. Also, we find that the effective potential and QNM in scalar fields are larger than those in electromagnetic fields.
Chiroderma Peters 1860
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Chiroderma

description: Chiroderma Peters, 1860. Monatsb. Preuss. Akad. Wiss. Berlin, p. 747. REVIEWED BY: R. Barquez (RB); J. Molinari (JML); V. A. Taddei (VAT); B. Villa-Ramirez (BVR). COMMENT: Reviewed by Goodwin, 1958, Am. Mus. Novit., 1877:2-3. ISIS NUMBER: 5301405008029000000.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 154, DOI: 10.5281/zenodo.7352990
description: {"references": ["Goodwin, G. G. 1958. Three new bats from Trinidad. American Museum Novitates, 1877: 1 - 6."]}
Model-agnostic interpretation of 10 billion years of cosmic evolution traced by BOSS and eBOSS data
Creators: name: Brieden, Samuel
name: Gil-Marín, Héctor
name: Verde, Licia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present the first model-agnostic analysis of the complete set of Sloan Digital Sky Survey III (BOSS) and -IV (eBOSS) catalogues of luminous red galaxy and quasar clustering in the redshift range $0.2\leq z \leq 2.2$ (10 billion years of cosmic evolution), which consistently includes the baryon acoustic oscillations (BAO), redshift space distortions (RSD) and the shape of the transfer function signatures, from pre- and post-reconstructed catalogues in Fourier space. This approach complements the standard analyses techniques which only focus on the BAO and RSD signatures, and the full-modeling approaches which assume a specific underlying cosmology model to perform the analysis. These model-independent results can then easily be interpreted in the context of the cosmological model of choice. In particular, when combined with $z>2.1$ Ly-$α$ BAO measurements, the clustering BAO, RSD and {\it Shape} parameters can be interpreted within a flat-$Λ$CDM model yielding $h=0.6816\pm0.0067$, $Ω_{\rm m}=0.3001\pm0.0057$ and $10^{9}\times A_s= 2.43\pm0.20$ (or $σ_8=0.858\pm0.036$) with a Big Bang Nucleosynthesis prior on the baryon density. Without any external dataset, the BOSS and eBOSS data alone imply $Ω_{\rm m}=0.2971\pm 0.0061$ and $10^{9}\times A_s=2.39^{+0.24}_{-0.43}$ (or $σ_8=0.857\pm0.040$). For models beyond $Λ$CDM, eBOSS data alone (in combination with Planck) constrain the sum of neutrino mass to be $Σm_ν< 0.40$ eV with a BBN prior ($Σm_ν<0.082$ eV) at 95\% CL, the curvature energy density to $Ω_\mathrm{k} = -0.022_{-0.038}^{+0.032}$ ($Ω_\mathrm{k} = 0.0015\pm 0.0016$) and the dark energy equation of state parameter to $w=-0.998_{-0.073}^{+0.085}$ ($w=-1.093_{-0.044}^{+0.048}$) at 68\% CL without a BBN prior.
description: 68 pages, 18 figures, 14 tables, comments welcome, v2 matches accepted version
The anatomy of the Orion B Giant Molecular Cloud: A local template for studies of nearby galaxies
Creators: name: Pety, Jérôme
name: Guzmán, Viviana V.
name: Orkisz, Jan H.
name: Liszt, Harvey S.
name: Gerin, Maryvonne
name: Bron, Emeric
name: Bardeau, Sébastien
name: Goicoechea, Javier R.
name: Gratier, Pierre
name: Petit, Franck Le
name: Levrier, François
name: Oberg, Karin I.
name: Roueff, Evelyne
name: Sievers, Albrecht
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We aim to develop the Orion B Giant Molecular Cloud (GMC) as a local template for interpreting extra-galactic molecular line observations. We use the wide-band receiver at the IRAM-30m to spatially and spectrally resolve the Orion B GMC. The observations cover almost 1 square degree at 26" resolution with a bandwidth of 32 GHz from 84 to 116 GHz in only two tunings. Among the mapped spectral lines are the 12CO, 13CO, C18O, C17O, HCN, HNC, 12CN, CCH, HCO+, N2H+ (1-0), and 12CS, 32SO, SiO, c-C3H2, CH3OH (2-1) transitions. We introduce the molecular anatomy of the Orion B GMC, including relations between line intensities and gas column density or far-UV radiation fields, and correlations between selected line and line ratios. We also obtain a dust-traced gas mass that is less than about one third the CO-traced mass, using the standard Xco conversion factor. The presence of overluminous CO can be traced back to the dependence of the CO intensity on UV illumination. In fact, while most lines show some dependence on the UV radiation field, CN and CCH are the most sensitive. Moreover dense cloud cores are almost exclusively traced by N2H+. Other traditional high density tracers, such as HCN (1-0), are also easily detected in extended translucent regions at a typical density of about 500 H2 cm-3. In general, we find no straightforward relation between line critical density and the fraction of the line luminosity coming from dense gas regions. Our initial findings demonstrate that the relations between line (ratio) intensities and environment in GMCs are more complicated than often assumed. Sensitivity (i.e., the molecular column density), excitation, and above all chemistry contribute to the observed line intensity distributions. They must be considered together when developing the next generation of extra-galactic molecular line diagnostics of mass, density, temperature and radiation field.
description: 32 pages, 29 PDF figures. Accepted for publication in A&A. Uses aa and natbib latex macros
Bohr Hamiltonian with an energy dependent $γ$-unstable Coulomb-like potential
Creators: name: Budaca, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: An exact analytical solution for the Bohr Hamiltonian with an energy dependent Coulomb-like $γ$-unstable potential is presented. Due to the linear energy dependence of the potential's coupling constant, the corresponding spectrum in the asymptotic limit of the slope parameter resembles the spectral structure of the spherical vibrator, however with a different state degeneracy. The parameter free energy spectrum as well as the transition rates for this case are given in closed form and duly compared with those of the harmonic $U(5)$ dynamical symmetry. The model wave functions are found to exhibit properties that can be associated to shape coexistence. A possible experimental realization of the model is found in few medium nuclei with a very low second $0^{+}$ state known to exhibit competing prolate, oblate and spherical shapes.
description: 11 pages, 4 figures, 2 tables
A Comparative Analysis on Genome Pleiotropy for Evolved Soft Robots
Creators: name: Marzougui, Dries
name: Biondina, Matthijs
name: wyffels, Francis
Publisher: name: Zenodo
Year: 2022

description: Biological evolution shapes the body and brain of living creatures together over time. By contrast, in evolutionary robotics, brain-body co-optimization remains challenging. Conflicting mutations cause dissociation between morphology and control, which leads to premature convergence. Recent works have proposed algorithmic modifications to mitigate the impact of conflicting mutations. However, the importance of genetic design remains underexposed. Current approaches are divided between a single, pleiotropic genetic encoding and two isolated encodings representing morphology and control. This design choice is commonly made ad hoc, causing a lack of consistency for practitioners. To standardize this design, we performed a comparative analysis between these two configurations and two previously unexplored alternatives on a soft robot locomotion task.
Are Delayed Issues Harder to Resolve? Revisiting Cost-to-Fix of Defects throughout the Lifecycle
Creators: name: Menzies, Tim
name: Nichols, William
name: Shull, Forrest
name: Layman, Lucas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: D.2.8

description: Many practitioners and academics believe in a delayed issue effect (DIE); i.e. the longer an issue lingers in the system, the more effort it requires to resolve. This belief is often used to justify major investments in new development processes that promise to retire more issues sooner. This paper tests for the delayed issue effect in 171 software projects conducted around the world in the period from 2006--2014. To the best of our knowledge, this is the largest study yet published on this effect. We found no evidence for the delayed issue effect; i.e. the effort to resolve issues in a later phase was not consistently or substantially greater than when issues were resolved soon after their introduction. This paper documents the above study and explores reasons for this mismatch between this common rule of thumb and empirical data. In summary, DIE is not some constant across all projects. Rather, DIE might be an historical relic that occurs intermittently only in certain kinds of projects. This is a significant result since it predicts that new development processes that promise to faster retire more issues will not have a guaranteed return on investment (depending on the context where applied), and that a long-held truth in software engineering should not be considered a global truism.
description: 31 pages. Accepted with minor revisions to Journal of Empirical Software Engineering. Keywords: software economics, phase delay, cost to fix