cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quest for the Origin of Heavy Fermion Behavior in $d$-Electron Systems
Creators: name: Miyazaki, Masanori
name: Yamauchi, Ichihiro
name: Kadono, Ryosuke
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Spin fluctuation is presumed to be one of the key properties in understanding the microscopic origin of heavy-fermion-like behavior in the class of transition-metal compounds, including LiV$_2$O$_4$, Y(Sc)Mn$_2$, and YMn$_2$Zn$_{20}$. In this review, we demonstrate by our recent study of muon spin rotation/relaxation that the temperature ($T$) dependence of the longitudinal spin relaxation rate ($λ\equiv 1/T_1$) in these compounds exhibits a common trend of leveling off to a constant value ($λ\sim const$.) below a characteristic temperature, $T^*$. This is in marked contrast to the behavior predicted for normal metals from the Korringa relation, $λ\propto T/ν$, where the spin fluctuation rate ($ν$) in the Pauli paramagnetic state is given as a constant, $ν\simeq 1/[h D(E_F)]$ [with $D(E_F)$ being the density of states at the Fermi energy]. Thus, the observed behavior of $λ$ implies that the spin fluctuation rate becomes linearly dependent on temperature, $ν\propto T$, suggesting that heavy quasiparticles develop in a manner satisfying $D(E_F)\propto (m^*)^σ\propto 1/T$ at lower temperatures ($σ$ determined by the electronic dispersion). Considering that the theory of spin correlation for intersecting Hubbard chains as a model of pyrochlore lattice predicts $ν\propto T$, our finding strongly indicates the crucial role of $t_{2g}$ bands which preserve the one-dimensional character at low energies due to the geometrical frustration specific to the undistorted pyrochlore lattice.
description: 11 pages, 13 figures
title: Are Biodegradable Plastics The Future For Agricultural Mulch Film Applications?
Creators: name: Foschi, Eleonora
name: Aureli, Selena
name: Paletta, Angelo
name: Alimehmeti, Genc
Publisher: name: University of Bologna
Year: 2023

description: This report summarises the findings of a focus group conducted by the University of Bologna on May 25, 2023, as part of the BIO-PLASTICS EUROPE project. With the aim to investigate the potential of biodegradable plastics to increase the sustainability of the agriculture sector, the focus group was joined by stakeholders, experts and researchers from public and private organisations representing the whole value chains. Using system thinking and multi-dimensional analysis, the findings reveal that biodegradable plastics have a high potential to contribute to the sustainability of the agriculture sector. However, many questions remain open and multiple measures must be implemented. Among the priorities, the most compelling are: 1. To increase farmers’ awareness about the impact of certain practices to the soil and the human health 2. To define applications and contexts where conventional mulch films are still a valid option, provided that removal, collection and recycling is ensured 3. To invest in R&D to improve the technical characteristics of biodegradable mulch films 4. To introduce guidelines for better removal of conventional mulch films from soils 5. To establish mandatory or voluntary Extended Producer Responsibility schemes in each EU country It follows that biodegradable plastics are not conceived as a stand-alone solution but as one of the alternatives in a more comprehensive sustainability roadmap. These elements reveal the necessity for a systemic joint policy intervention in the sector oriented to build up new business ecosystems, going beyond the boundaries of a single business to embrace collective actions in innovative ecosystems.
title: Post-EVAR Delayed Anterior Spinal Artery Syndrome with Watershed Grey Matter Infarction
Creators: name: Choudhary, Jaffer
Publisher: name: EURORAD
Year: 2022
Subjects: subject: Neuroradiology
subject: Anatomy
subject: Neuroradiology spine
subject: MR
subject: Ischaemia / Infarction
subject: Clinical Cases

description: Clinical History: An 80-year-old man was admitted to hospital with acute loss of power in his lower limbs. Neurological examination demonstrated lower limb paralysis with preserved fine-touch sensation, impaired nociception, reduced anal tone and urinary retention. He had an uneventful endovascular aneurysm repair (EVAR) for an infrarenal aortic aneurysm two weeks prior.

description: 80 years, male
Pteropus brunneus Dobson 1878
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus brunneus

description: Pteropus brunneus Dobson, 1878. Cat. Chiroptera Brit. Mus., p. 37. TYPE LOCALITY: Australia, Queensland, Percy Island. DISTRIBUTION: Known from the type locality only. STATUS: CITES - Appendix II. COMMENTS: See Koopman (1984c:2-3) for status.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 146, DOI: 10.5281/zenodo.7353060
description: {"references": ["Koopman, K. F. 1984 c. Taxonomic and distributional notes on tropical Australian bats. American Museum Novitates, 2778: 1 - 48."]}
Performance of Solar Photovoltaic/Thermal Hybrid Air Collectors Integrated into Building
Creators: name: Assoa, Y.B.
name: Sauzedde, F.
name: Boillot, B.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2696-2698
description: This article presents the numerical and experimental analysis of the performance of two rooftop
building integrated solar PV/T hybrid air collectors (BIPV/T) and a BIPV façade. Some main problematic of this kind
of component is that energy needs and their production are not always concomitant. Moreover, their configurations
don’t always permit to obtain optimal operative conditions for both thermal and electrical production. Thus, the
objective of this work is to propose area for improvement of their performance based on three applications.
The first system was designed to be coupled with a ventilation system.
The second system comprising a metal absorber was designed for fodder drying. The advantage of this application is
that it is realized during summertime, when PV modules most need to be cooled.
The third application was a bifacial BIPV double-skin façade.
For each system, the thermal and electrical numerical models developed are presented as well as their validation on
various test benches and a demonstrator.
Numerical and experimental parametric studies permitted to define first area of improvement of solar components
performance. Thus, some influencing parameters were defined: the thickness of air gap, the air velocity and the
optical properties (emissivity) of layers, especially PV modules front glass.
Lightweight Fuel-Fired Thermophotovoltaic Power Supply
Creators: name: Fraas, L.
name: Minkin, L.
name: Avery, J.
name: She, H.
name: Ferguson, L.
name: Dogan, F.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2690-2695
description: There are multiple potential applications for infrared thermophotovoltaic (TPV) cells. One application
is described in more detail here. A bench top prototype for a portable cylindrical TPV battery replacement is
described. This small 8.5 cm diameter unit is designed to consume fuel at a rate of approximately 400 W and to
produce approximately 30 W of DC power. Herein, a cylindrical TPV generator using simple diffused junction GaSb
IR cells is described along with a novel omega recuperator and a novel doped ceramic matched IR emitter. The IR
emitter assembly consists of a picket fence containing 4% NiO doped magnesia rods with spectral output centered at
a wavelength of 1.5 micrometers matching the response band of the GaSb cells. This lightweight TPV cylinder along
with fuel cylinders can potentially have a very high specific energy density higher than the specific energy for a Liion
battery with a similar power rating. The key is the TPV system efficiency. The GaSb IR cells can also be
combined with the picket fence matched IR emitter in home furnaces and stoves for combined heat and power (CHP)
applications.
Prospects for detection of target-dependent annual modulation in direct dark matter searches
Creators: name: Del Nobile, Eugenio
name: Gelmini, Graciela B.
name: Witte, Samuel J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Earth's rotation about the Sun produces an annual modulation in the expected scattering rate at direct dark matter detection experiments. The annual modulation as a function of the recoil energy $E_\text{R}$ imparted by the dark matter particle to a target nucleus is expected to vary depending on the detector material. However, for most interactions a change of variables from $E_\text{R}$ to $v_\text{min}$, the minimum speed a dark matter particle must have to impart a fixed $E_\text{R}$ to a target nucleus, produces an annual modulation independent of the target element. We recently showed that if the dark matter-nucleus cross section contains a non-factorizable target and dark matter velocity dependence, the annual modulation as a function of $v_\text{min}$ can be target dependent. Here we examine more extensively the necessary conditions for target-dependent modulation, its observability in present-day experiments, and the extent to which putative signals could identify a dark matter-nucleus differential cross section with a non-factorizable dependence on the dark matter velocity.
description: 25 pages, 13 figures
On Minimal realization of Topological Lorentz Structures with one-loop Seesaw extensions in A$_4$ Modular Symmetry
Creators: name: Kashav, Monal
name: Verma, Surender
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The topological classification of one-loop Weinberg operator at dimension-5 leads to systematic categorization of one-loop neutrino mass models. All one-loop neutrino mass models must fall in one of these categories. Among these topological categories, loop extension of canonical seesaw scenarios is interesting in light of the current LHC run. Apart from one-loop contribution, these extensions result in dominant tree-level contribution to neutrino masses. The immediate remedy to obtain dominant one-loop contribution requires combination of flavor symmetries and enlarged field content. Alternatively, in this work, we propose a minimal way of realizing the topological structures with dominant one-loop contribution using modular variant of the permutation symmetries. In such a realization, no new fields are needed apart from those permitted by the topology itself. For the first time, we have realized one such topological Lorentz structure(T4-2-$i$) pertaining to one-loop extension of Type-II seesaw using modular A$_4$ symmetry. Here, modular weights play an important role in suppressing tree-level terms and stabilizing the particles running in the loop($N_i$, $ρ$ and $ϕ$), thus, making them suitable dark matter candidates. In this work, we have explored the possibility of fermionic dark matter candidate where right-handed neutrino ($N_1$) is assumed to be lightest. We have, also, analyzed the compatibility of the model with neutrino oscillation data and obtained model predictions for effective Majorana mass $M_{ee}$ and $CP$ violation. Furthermore, the predictions on relic density of dark matter and its direct detection considering bound on lepton flavor violating process, $μ\rightarrow eγ$ have, also, been investigated.
description: 20 pages, 9 captioned figures, to appear in JCAP
A high-resolution pointing system for fast scanning platforms: The EBEX example
Creators: name: Didier, Joy
name: Chapman, Daniel
name: Aboobaker, Asad
name: Araujo, Derek
name: Grainger, Will
name: Hanany, Shaul
name: Helson, Kyle
name: Hillbrand, Seth
name: Korotkov, Andrei
name: Limon, Michele
name: Miller, Amber
name: Reichborn-Kjennerud, Britt
name: Sagiv, Ilan
name: Tucker, Greg
name: Vinokurov, Yuri
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The E and B experiment (EBEX) is a balloon-borne telescope designed to measure the polarization of the cosmic microwave background with 8' resolution employing a gondola scanning with speeds of order degree per second. In January 2013, EBEX completed 11 days of observations in a flight over Antarctica covering $\sim$ 6000 square degrees of the sky. The payload is equipped with two redundant star cameras and two sets of three orthogonal gyroscopes to reconstruct the telescope attitude. The EBEX science goals require the pointing to be reconstructed to approximately 10" in the map domain, and in-flight attitude control requires the real time pointing to be accurate to $\sim$ 0.5$^{\circ}$ . The high velocity scan strategy of EBEX coupled to its float altitude only permits the star cameras to take images at scan turnarounds, every $\sim$ 40 seconds, and thus requires the development of a pointing system with low noise gyroscopes and carefully controlled systematic errors. Here we report on the design of the pointing system and on a simulation pipeline developed to understand and minimize the effects of systematic errors. The performance of the system is evaluated using the 2012/2013 flight data, and we show that we achieve a pointing error with RMS=25" on 40 seconds azimuth throws, corresponding to an error of $\sim$ 4.6" in the map domain.
description: 14 pages, Proceedings of the 2015 IEEE Aerospace Conference
Utilisation of Excess Solar PV Generation in the Production of Domestic Hot Water for Residential Applications
Creators: name: Harrison, J.
name: Terry, J.
name: Payne, G.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2699-2702
description: The production of Domestic Hot Water (DHW) by hydronic solar thermal collectors was for many
years the leading renewable energy technology in the residential sector. However, the installed cost of solar PV has
fallen dramatically over the past decade and the generation of electricity by PV systems excess to the needs of the
individual household now presents a challenge to the stable operation of the LV distribution network. The utilisation of
this excess electricity to provide DHW, combined with the lower investment costs, may now make economic sense for
the householder and deliver benefits to the energy system as a whole.
As both an energy supplier and a network operator, E.ON has an interest in providing cost-effective energy solutions
and optimising the integration of solar PV within the overall energy system.
This paper evaluates the opportunity for simultaneously mitigating the negative network impacts of PV and
improving the economic performance of residential energy systems. It draws on economic modelling, laboratory and
field trials addressing the economic, environmental and practical merits, and remaining challenges of this technology.
On the Torsion Anomalous Conjecture in CM abelian varieties
Creators: name: Checcoli, Sara
name: Viada, Evelina
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 11G50, Secondary 14G40

description: The Torsion Anomalous Conjecture (TAC) states that a subvariety V of an abelian variety A has only finitely many maximal torsion anomalous subvarieties. In this work we prove, with an effective method, some cases of the TAC when the ambient variety A has CM, generalising our previous results in products of CM elliptic curves. When V is a curve, we give new results and we deduce some implications on the effective Mordell-Lang Conjecture.
description: 20 pages. arXiv admin note: text overlap with arXiv:1204.1435
Pteropus caniceps Gray 1870
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus caniceps

description: Pteropus caniceps Gray, 1870. Cat. Monkeys, Lemurs, Fruit-eating Bats Brit. Mus., p. 107. TYPE LOCALITY: Indonesia, Molucca Isis, Halmahera Isis, Batjan. DISTRIBUTION: Halmahera Isis, Sulawesi, and Sula Isis (Indonesia). The Sulawesi record is dubius. A Sangihe Isl record is erroneus. STATUS: CITES - Appendix II. SYNONYMS: affinis, batchiana, dobsoni. COMMENTS: Includes dobsoni; see Laurie and Hill (1954:34).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 146, DOI: 10.5281/zenodo.7353060
description: {"references": ["Laurie, E. M. O., and J. E. Hill. 1954. List of land mammals of New Guinea, Celebes and adjacent islands 1758 - 1952. British Museum (Natural History) Publications, London, 175 pp."]}
Supplementary document for Magnetic tuning with minimal thermal drift in a high-Q magnetorheological polydimethylsiloxane coated μ-sphere - 7153401.pdf
Creators: name: Jin, Xiaolin
name: Chen, Mengmeng
name: ZHENG, JIHUI
name: Xu, Enming
name: Jiang, Chen
name: Zhou, Kaiming
name: Sun, Bing
name: Zhang, Zuxing
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplemental Figures
Advanced Systems for Harsh Environment Off-Grid Renewable Generation using Battery Energy Storage
Creators: name: Lanuzza, L.
name: Bizzarri, F.
name: Cirillo, G.
name: Del Gaizo, C.
name: Justiniano, J.
name: Bonemazzi, F.
name: Santilli, A.
name: Pellegrini, A.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV Applications Without a Centralised Grid

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2709-2712
description: In this paper a project is presented which was thought with the double aim of satisfying the energy demand
of a rural village in desert region in Chile and to become a experimentation test site for advanced technical solutions and
operation models for renewable off-grid systems. Design solutions will be reported, together with feedback from the
experimentation activities during the first months of operation.
title: “Feeling Better Than Ever”
title: Are there any internally consistent responses to the challenge of ‘better than perfect’ human health enhancement technology in a health technology appraisal context?
titleType: Subtitle
Creators: name: Bates, Alex
Publisher: name: Lancaster University
Year: 2022
Subjects: Health economics
Bioethics
Transhumanism
Human Enhancements
NHS Subversion

description: Most modern publicly funded national healthcare systems (NHSes) make decisions about which technologies to fund and which to reject through the principles of health economics, and specifically the principles of ‘Health Technology Appraisal’ (HTA). Current HTA methods implicitly assume that health is anchored between zero (worst possible health) and one (best possible health), but the mathematics underlying HTA does not require this – mathematically the concept of ‘better than perfect’ health is entirely meaningful. However, to date there are no examples of technologies which actually create ‘better than perfect’ health and so the problem has never really been considered by health economists. This PhD thesis proposes that human enhancements – technologies which can “modify basic parameters of the human condition, which were previously thought immutable” (Bostrom & Roache, 2008) – might be able to create ‘better than perfect’ health states, and traces some of the implications of this for NHSes under current HTA rules. The key observation is that there is no obvious practical limit to how much better than ‘perfect’ health could get, and therefore a risk that following HTA rules blindly could lead to an NHS becoming ‘Subverted’ – NHSes becoming vehicles for prescribing this wonderful enhancement rather than making sick people healthier. It is therefore critical that the NHS regulators – and most specifically HTA agencies – adopt a systematic approach to ‘better than perfect’ healthcare to prevent this outcome if they believe it to be unjust. To begin to develop such a systematic approach, this thesis creates an economic theory of human enhancement and tests whether there is any approach which is consistent with all implications of this theory. The study draws heavily on interdisciplinary readings of the relatively developed bioethics literature on ‘better than perfect’ health and the health economic methods of health technology appraisal. It is hoped that the results from this approach will inform the response of HTA agencies and other regulators to the emerging issue of ‘better than perfect’ healthcare technologies in a health technology appraisal context, as well as providing meaningful avenues of further research on the same topic.
CP Violation Tests of Alignment Models at LHCII
Creators: name: Ghosh, Diptimoy
name: Paradisi, Paride
name: Perez, Gilad
name: Spada, Gabriele
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We analyse the low-energy phenomenology of alignment models both model-independently and within supersymmetric (SUSY) scenarios focusing on their CP violation tests at LHCII. Assuming that New Physics (NP) contributes to K-Kbar and D-Dbar mixings only through non-renormalizable operators involving SU(2)_L quark-doublets, we derive model-independent correlations among CP violating observables of the two systems. Due to universality of CP violation in Delta F=1 processes the bound on CP violation in Kaon mixing generically leads to an upper bound on the size of CP violation in D mixing. Interestingly, this bound is similar in magnitude to the current sensitivity reached by the LHCb experiment which is starting now to probe the natural predictions of alignment models. Within SUSY, we perform an exact analytical computation of the full set of contributions for the D-Dbar mixing amplitude. We point out that chargino effects are comparable and often dominant with respect to gluino contributions making their inclusion in phenomenological analyses essential. As a byproduct, we clarify the limit of applicability of the commonly used mass insertion approximation in scenarios with quasi-degenerate and split squarks.
description: 26 pages, 5 figures
Influence of Magnetic Fields on the Gas Rotation in the Galaxy $NGC\;6946$
Creators: name: Khademi, M.
name: Nasiri, S.
name: Tabatabaei, F. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Magnetic fields can play an important role in the energy balance and formation of gas structures in galaxies. However, their dynamical effect on the rotation curve of galaxies is immensely unexplored. We investigate the dynamical effect of the known magnetic arms of $NGC\;6946$ on its circular gas rotation traced in HI, considering two dark matter mass density models, ISO, and the universal NFW profile. We used a three-dimensional model for the magnetic field structure to fit the modeled rotation curve to the observed data via an $χ$-squared minimization method. The shape of the HI gas rotation curve is reproduced better including the effect of the magnetic field, especially in the outer part, where the dynamical effect of the magnetic field could become important. The typical amplitude of the regular magnetic field contribution in the rotation curve is about $ 6 - 14 \; km s^{-1}$ in the outer gaseous disk of the galaxy $NGC\;6946$. The contribution ratio of the regular magnetic field to the observed circular velocity and to dark matter increases with the galactocentric radius. Its ratio to the observed rotational velocity is about five percent and to dark matter is about 10 percent in the outer regions of the galaxy $NGC\;6946$. Therefore, the large-scale magnetic fields cannot be completely ignored in the large-scale dynamics of spiral galaxies, especially in the outer parts of galaxies.
description: 19 pages, 10 captioned figures, Accepted for publication in The Astrophysical Journal (ApJ)
Pteropus conspicillatus Gould 1850
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus conspicillatus

description: Pteropus conspicillatus Gould, 1850. Proc. Zool. Soc. Lond., 1849: 109 [1850]. TYPE LOCALITY: Australia, Queensland, Fitzroy Isl. DISTRIBUTION: Halmahera Isis; New Guinea and adjacent islands; NE Queensland (Australia). STATUS: CITES - Appendix II. SYNONYMS: chrysauchen, mysolensis.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 147, DOI: 10.5281/zenodo.7353060
Three essays on machine learning in finance
Creators: name: Tang, Yushan
Publisher: name: No Publisher Supplied
Year: 2023

description: The rapid development of powerful statistical tools and the “Big Data” revolution in the financial market over the past two decades has created many research opportunities and challenges. In this dissertation, I develop tailored machine learning (ML) solutions to high-dimensional problems in the areas of empirical asset pricing, financial econometrics, risk management, and investment management. It includes three essays and strives to enhance understanding of the financial market with the help of machine learning techniques. The first essay, “Automated Risk Forecasting” co-authored with Sophia Zhengzi Li, builds an automated risk forecasting system for a large panel of S&P 100 stocks using more than one hundred features and five machine learning algorithms. The automated system results in superior out-of-sample volatility forecasts compared to those from existing risk models across forecast horizons. The improvement in out-of-sample R2’s further translates into an enhanced annual return of 7.4% from a cross-sectional variance risk premium strategy. Finally, the system remains robust to different specifications and is scalable to a broader S&P 500 stock universe via hyperparameter transfer learning. The second essay, “Forecasting and Managing Correlation Risks” co-authored with Tim Bollerslev and Sophia Zhengzi Li, proposes a novel and easy-to-implement framework for forecasting correlation risks based on a large set of salient realized correlation features and the sparsity-encouraging LASSO technique. The new framework results in superior out-of-sample forecasts and interesting time-varying patterns in features selected by LASSO under different market conditions. These statistical improvements also translate into substantial economical gains in portfolio construction, risk control, and return prediction, further underscoring the practical value of the new procedures. The third essay, “Anomalies as New Hedge Fund Factors: A Machine Learning Approach” co-authored with Yong Chen, Sophia Zhengzi Li and Guofu Zhou, identifies factors from a large set of anomalies for explaining hedge fund returns using machine learning methods. The new model combines anomaly factors with market and macro factors and outperforms existing models both in-sample and out-of-sample. Moreover, the model leads to a significant reduction in hedge fund alphas compared with other models, while revealing substantial cross-sectional performance heterogeneity. Further subsample analysis provides evidence of style shifting in the hedge fund industry. Overall, the anomaly factors help quantify hedge fund strategies and risk exposures and are useful for fund performance evaluation.
Waxing and Waning of Observed Extreme Annual Tropical Rainfall
Creators: name: Sukhatme, Jai
name: Venugopal, V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: We begin by providing observational evidence that the probability of encountering very high and very low annual tropical rainfall has increased significantly in the recent decade (1998-present) as compared to the preceding warming era (1979-1997). These changes over land and ocean are spatially coherent and comprise of a rearrangement of very wet regions and a systematic expansion of dry zones. While the increased likelihood of extremes is consistent with a higher average temperature during the pause (as compared to 1979-1997), it is important to note that the periods considered are also characterized by a transition from a relatively warm to cold phase of the El Nino Southern Oscillation (ENSO). To further probe the relation between contrasting phases of ENSO and extremes in accumulation, a similar comparison is performed between 1960-1978 (another extended cold phase of ENSO) and the aforementioned warming era. Though limited by land-only observations, in this cold-to-warm transition, remarkably, a near-exact reversal of extremes is noted both statistically and geographically. This is despite the average temperature being higher in 1979-1997 as compared to 1960-1978. Taken together, we propose that there is a fundamental mode of natural variability, involving the waxing and waning of extremes in accumulation of global tropical rainfall with different phases of ENSO.
description: 9 pages, 7 figures
Ripple Control Based Control System for Decentralised Photovoltaic Power Plants
Creators: name: Bucher, C.
name: Schuster, U.
name: Müller, D.
name: Toller, A.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV Applications Without a Centralised Grid

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2713-2717
description: The control of photovoltaic (PV) power systems is of major importance in distribution power systems which are
highly penetrated with PV. A simple closed loop control approach taking advantage of existing assets in the grid
infrastructure is presented in this paper. This approach principally consists of the widely spread ripple control
system, some distributed real time low voltage measurements and a computer located in the grid operation centre
which hosts the control algorithms. The performance of such a system is discussed in this paper. First experiences
and findings of an implementation called "Smart Grid Eich" in Switzerland are presented. It is shown that the
performance of this simple system is close to the performance of a fast control system using broad band
communication.
Boosting the Performance of the Neural Network Using Symmetry Properties for the Prediction of the Shower Maximum Using the water-Cherenkov Detectors of the Pierre Auger Observatory as an Example
Creators: name: Hahn, Steffen
name: Roth, Markus
name: Schmidt, David
name: Veberic, Darko
Publisher: name: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Year: 2022

description: To probe physics beyond the scales of human-made accelerators with cosmic rays demands an accurate knowledge of their primary mass composition. Using fluorescence detectors, one is able to estimate the mass by measuring the depth of the shower maximum $X_{max}$. These, however, exhibit a very low duty cycle of typically below 15%. Inferring $X_{max}$ from a surface detector array (SD) such as the water-Cherenkov array of the Pierre Auger Observatory is highly non-trivial due to the inherent complexity and fluctuations of the shower footprint. Moreover, the sheer amount of data makes it non-trivial to find hidden patterns in the spatial and temporal distributions of detector signals. Neural networks provide a straightforward way of tackling such a problem doing a data-driven analysis. Relying solely on geometrical quantities, timing, and the signal-time information of the SD stations, we show that by exploiting the symmetries due to their triangular arrangement, we are able to boost a standard analysis network significantly without modifying its architecture or training process. Furthermore, these considerations yield a standardization procedure which also enables us to encode the footprint information in a memory-efficient way. The presented procedure can also be generalized and extended to systems whose setup has an underlying hexagonal geometry.
Fast response electromagnetic follow-ups from low latency GW triggers
Creators: name: Howell, E. J.
name: Chu, Q.
name: Rowlinson, A.
name: Gao, H.
name: Zhang, B.
name: Tingay, S. J.
name: Boer, M.
name: Wen, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate joint low-latency gravitational wave (GW) detection and prompt electromagnetic (EM) follow-up observations of coalescing binary neutron stars (BNSs). Assuming that BNS mergers are associated with short duration gamma ray bursts (SGRBs), we evaluate if rapid EM follow-ups can capture the prompt emission, early engine activity or reveal any potential by-products such as magnetars or fast radio bursts. To examine the expected performance of extreme low-latency search pipelines, we simulate a population of coalescing BNSs and use these to estimate the detectability and localisation efficiency at different times before merger. Using observational SGRB flux data corrected to the range of the advanced GW interferometric detectors, we determine what EM observations could be achieved from low-frequency radio up to high energy $γ$-ray. We show that while challenging, breakthrough multi-messenger science is possible through low latency pipelines.
description: For Journal of Physics: Conference Series, accepted 19th Jan 2016
Utilization Concept for Residential PV Storage Systems Based on an Innovative Measurement and Control System
Creators: name: Soyck, F.
name: Diekmann, S.
name: Funck, F.
name: Laudahn, S.
name: Engel, B.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2703-2708
description: Most of the installed PV storage systems in residential areas are installed in single family houses. The
field of application of PV storage systems can be extended to apartment buildings by providing a concept, that allows
the joint use of one PV storage system by a number of apartments. This paper describes a concept, that combines an
integrated multi-level energy management system for an apartment building with a PV generator and a storage unit.
Therefore a measurement concept is introduced, that allows quasi-real-time metering and simultaneous multiple access
to one battery storage unit. The global objective is to present a holistic concept, that provides an energy management
system that optimizes on the level of the apartment, the whole building and the integration in the energy market all in
one.
Incompleteness of the bond market with Lévy noise under the physical measure
Creators: name: Barski, Michał
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Finance (q-fin.MF)
subject: Probability (math.PR)
subject: FOS: Economics and business
subject: FOS: Mathematics
subject: 91B28, 91B70

description: The problem of completeness of the forward rate based bond market model driven by a Lévy process under the physical measure is examined. The incompleteness of market in the case when the Lévy measure has a density function is shown. The required elements of the theory of stochastic integration over the compensated jump measure under a martingale measure is presented and the corresponding integral representation of local martingales is proven.
description: 25 pages
Pteropus dasymallus Temminck 1825
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus dasymallus

description: Pteropus dasymallus Temminck, 1825. Monogr. Mamm., 1:180. TYPE LOCALITY: Japan, Ryukyu Isis, Kuchinoerabu Isl. DISTRIBUTION: Taiwan; Ryukyu Isis, Daito Isis and extreme S Kyushu (Japan). STATUS: CITES - Appendix II. SYNONYMS: daitoensis, formosus, inopinatus, yamagatai, yayeyamae. COMMENTS: Includes daitoensis; see Kuroda (1933:314).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 147, DOI: 10.5281/zenodo.7353060
description: {"references": ["Kuroda, N. 1933. A revision of the genus Pteropus found in the islands of the Riu Kiu Chain, Japan. Journal of Mammalogy, 14: 312 - 316."]}
Maximising Sustainability and Transformative Potential via Community Engagement in Mini Grid Deployment Models
Creators: name: Baudish, I.
name: Bruce, A.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV Applications Without a Centralised Grid

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2718-2725
description: The aim of this research was to develop frameworks to better understand the role of community
engagement, and assist in planning community engagement strategies in order to enhance the sustainability and
transformative potential of PV hybrid mini grids for remote developing regions. Transformative potential is defined as
the ability of a modern energy service to effectively alleviate energy poverty and meet sustainable livelihoods. Through
the use of literature review, case studies and interviews with industry practitioners, this research produced a phase by
phase guide to community engagement opportunities within PV hybrid mini grid deployment models, an evaluation tool
for assessing sustainability and transformative potential of a PV hybrid mini grid program and recommendations for best
practice in order to maximise sustainability and transformative potential of a PV hybrid mini grid program. Key
considerations include the resource intensive nature of community engagement strategies and the importance of
flexibility. It is intended that this research engender a better understanding of the value of community engagement, and
how it can be realised in different in deployment models.
Dynamics of sessile and pendant drop excited by surface acoustic waves: gravity effects and correlation between oscillatory and translational motions
Creators: name: Bussonière, Adrien
name: Baudoin, Michael
name: Brunet, Philippe
name: Matar, Olivier Bou
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: When sessile droplets are excited by ultrasonic traveling surface acoustic waves (SAWs), they undergo complex dynamics with both oscillations and translational motion. While the nature of the Rayleigh-Lamb quadrupolar drop oscillations has been identified, their origin and their influence on the drop mobility remains unexplained. Indeed the physics behind this peculiar dynamics is complex with nonlinearities involved both at the excitation level (acoustic streaming and radiation pressure) and in the droplet response (nonlinear oscillations and contact line dynamics). In this paper, we investigate the dynamics of sessile and pendant drops excited by SAWs. For pendant drops, so-far unreported dynamics are observed close to the drop detachment threshold with the suppression of the translational motion. Away from this threshold, the comparison between pendant and sessile drop dynamics allows us to identify the role played by gravity or more generally by an initial or dynamically induced stretching of the drop. In turn, we elucidate the origin of the resonance frequency shift, as well as the origin of the strong correlation between oscillatory and translational motion. We show that for sessile drops, the velocity is mainly determined by the amplitude of oscillation and that the saturation observed is due to the nonlinear dependence of the drop response frequency on the dynamically induced stretching.
R-code for random forest models related to article 'Arctic soil methane sink increases with drier conditions and higher ecosystem respiration'
Creators: name: Voigt, Carolina
name: Kou, Dan
Publisher: name: Zenodo
Year: 2023

description: This folder contains two R-script to create Random Forest (RF) models that can be used to reproduce RF model outputs reported in the following article: Voigt, C., Virkkala, A.-M., Hould Gosselin, G., Bennett, K.A., Black, T.A., Detto, M., Chevrier-Dion, C., Guggenberger, G., Hashmi, W., Kohl, L., Kou, D., Marquis, C., Marsh, P., Marushchak, M.E., Nesic, Z., Nykänen, H., Saarela, T., Sauheitl, L., Walker, B., Weiss, N., Wilcox, E.J., Sonnentag, O. (2023). Arctic soil methane sink increases with drier conditions and higher ecosystem respiration. Nature Climate Change. DOI: 10.1038/s41558-023-01785-3 [in press]. The flux datasets used in this script are available on PANGAEA database under the following DOI: https://doi.org/10.1594/PANGAEA.953120 Example datasets (.csv) with a subset of data are included with these R-scripts. Please cite our work accordingly when using this script or associated data. Script 1: RF models for all vegetation types at Trail Valley Creek, split between Shrub, Lichen, and Tussock Script 2: RF models for individual chambers (18 chambers) at Trail Valley Creek, split by month (June, July, August).
Soft Scalars and the Geometry of the Space of Celestial CFTs
Creators: name: Kapec, Daniel
name: Law, Y. T. Albert
name: Narayanan, Sruthi A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Known examples of the holographic dictionary in asymptotically Anti-de Sitter spacetimes equate moduli spaces of bulk vacua with conformal manifolds in the dual quantum field theory. We demonstrate that the same identification holds for gravity in asymptotically flat spacetimes in any dimension, in accord with expectations derived from the celestial conformal field theory (CCFT) formalism. Soft limits of moduli scalars described by the sigma model are universal, and relate to parallel transport of $S$-matrix observables over the moduli space of bulk vacua. The leading "soft moduli operator" is the shadow transform of a dimension $Δ=d$ marginal operator $M(x)$. The universal form of the soft limit guarantees that $M(x)$ acts as a marginal deformation in the CCFT$_d$, and coherent states of the soft scalars correspond to finite deformations along the conformal manifold. This manifold typically has curvature, which is captured by the antisymmetric double-soft theorem and which reflects the Berry curvature in CCFT$_d$. We also compute the Mellin-transformed four-point function in the sigma model and compare to a formula of Kutasov for the curvature of the conformal manifold.
description: 21 pages
Proceedings Eighth International Workshop on Programming Language Approaches to Concurrency- and Communication-cEntric Software
Creators: name: Gay, Simon
name: Alglave, Jade
Publisher: name: arXiv
Year: 2016
Subjects: subject: Programming Languages (cs.PL)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: PLACES 2015 (full title: Programming Language Approaches to Concurrency- and Communication-Centric Software) is the eighth edition of the PLACES workshop series. After the first PLACES, which was affiliated to DisCoTec in 2008, the workshop has been part of ETAPS every year since 2009 and is now an established part of the ETAPS satellite events. PLACES 2015 was held on 18th April in London, UK. The workshop series was started in order to promote the application of novel programming language ideas to the increasingly important problem of developing software for systems in which concurrency and communication are intrinsic aspects. This includes software for both multi-core systems and large-scale distributed and/or service-oriented systems. The scope of PLACES includes new programming language features, whole new programming language designs, new type systems, new semantic approaches, new program analysis techniques, and new implementation mechanisms. This volume consists of revised versions of the papers that were presented at the workshop.
Pteropus faunulus Miller 1902
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus faunulus

description: Pteropus faunulus Miller, 1902. Proc. U.S. Natl. Mus., 24:785. TYPE LOCALITY: India, Nicobar Isis, Car Nicobar Isl. DISTRIBUTION: Nicobar Isis (Bay of Bengal, India). STATUS: CITES - Appendix II.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 147, DOI: 10.5281/zenodo.7353060
The Role of Solar Photovoltaics and Energy Storage Solutions in a 100% Renewable Energy System for Finland in 2050
Creators: name: Child, M.
name: Haukkala, T.
name: Breyer, C.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2650-2671
description: There are several barriers to achieving an energy system based entirely on renewable energy (RE), not
the least of which is doubt that high capacities of solar PV can be feasible due to long, cold and dark Finnish winters.
Technologically, several energy storage options can facilitate high penetrations of solar PV (up to 29 TWhe, or 16%
of annual electricity production) and other variable forms of RE. These options include electric and thermal storage
systems in addition to a robust role of Power-to-Gas (PtG) technology. Approximately 45% of electricity produced
from solar PV was used directly over the course of the year, which shows the relevance of storage. In terms of public
policy, several mechanisms are available to promote various forms of RE. However, many of these are contested in
Finland by actors with vested interests in maintaining the status quo rather than by those without faith in RE
conversion or storage technologies. These vested interests must be overcome before a zero fossil carbon future can
begin.
Influence of Induced Interactions on Superfluid Properties of Quasi-Two Dimensional Dilute Fermi Gases With Spin-Orbit Coupling
Creators: name: Caldas, H.
name: Farias, R. L. S.
name: Continentino, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the effects of induced interactions on the pairing gap, transition temperature and chemical potential of a quasi-two dimensional Fermi gas of atoms with spin-orbit coupling. We find that these mean-field parameters are significantly modified when induced interactions are taken into account. We also investigate the implications of induced interactions corrections for the BCS-BEC crossover driven by spin-orbit coupling, that happens even for small (compared to the Fermi energy) values of the binding energy.
description: 14 pages, 13 figures