cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optical frequency transfer via 146 km fiber link with 10^{-19} relative accuracy
Creators: name: Grosche, G.
name: Terra, O.
name: Predehl, K.
name: Holzwarth, R.
name: Lipphardt, B.
name: Vogt, F.
name: Sterr, U.
name: Schnatz, H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate the long-distance transmission of an ultra-stable optical frequency derived directly from a state-of-the-art optical frequency standard. Using an active stabilization system we deliver the frequency via a 146 km long underground fiber link with a fractional instability of 3*10^{-15} at 1 s, which is close to the theoretical limit for our transfer experiment. The relative uncertainty for the transfer is below 1*10^{-19} after 30 000 seconds. Tests with a very short fiber show that noise in our stabilization system contributes fluctuations which are two orders of magnitude lower, namely 3*10^{-17} at 1 s, reaching 10^{-20} after 4000 s.
description: 12 pages, 3 figures
Presence and possible significance of the endophytic bacterial flora in solanum tuberosum l
Creators: name: De Boer, Solke Harmen
Publisher: name: University of British Columbia
Year: 2011

description: The total number of viable bacteria found in Solanum tuberosum stems and tubers was found to vary from less than 1 x 10³ to 4.7 x 10⁷ cells per cm³ in stems and from 0 to 1.6 x 10⁴ cells per cm³ in tubers. About 75% of both stems and tubers had populations at the lower end of the range but there was no significant correlation between bacterial counts in stems and tubers of the same plant. Bacteria found in potato tubers included species of Micrococcus, Pseudomonas, Bacillus, Flavobacterium, Agrobacterium, and Xanthomonas. Also present were coryneforms and some others which were not identified to genus but were gram negative. Some of the coryneforms were morphologically indistinguishable from the bacterial ring rot organism (Corynebacterium sepedonicum) but non-pathogenic and biochemically different from it. About 5% of stem smears of healthy plants showed more than 30 gram positive rods per microscope field. All the Bacillus spp., one Pseudomonas sp. and three unidentified species were found to inhibit C. sepedonicum in vitro. An antibiotic was partially purified from the Bacillus sp. showing the greatest amount of inhibition. This species was also antagonistic toward the following potato pathogens: Pseudomonas solanacearum, Erwinia atroseptica, E. carotovora, Alternaria solani, and Phytophthora infestans. Physical and chemical tests showed that both a lipid and a peptide antibiotic were involved in the antagonistic effect.
Deep Recurrent Learning for Heart Sounds Segmentation based on Instantaneous Frequency Features
Creators: name: Gaona, Alvaro Joaquín
name: Arini, Pedro David
Publisher: name: arXiv
Year: 2022
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this work, a novel stack of well-known technologies is presented to determine an automatic method to segment the heart sounds in a phonocardiogram (PCG). We will show a deep recurrent neural network (DRNN) capable of segmenting a PCG into its main components and a very specific way of extracting instantaneous frequency that will play an important role in the training and testing of the proposed model. More specifically, it involves a Long Short-Term Memory (LSTM) neural network accompanied by the Fourier Synchrosqueezed Transform (FSST) used to extract instantaneous time-frequency features from a PCG. The present approach was tested on heart sound signals longer than 5 seconds and shorter than 35 seconds from freely-available databases. This approach proved that, with a relatively small architecture, a small set of data, and the right features, this method achieved an almost state-of-the-art performance, showing an average sensitivity of 89.5%, an average positive predictive value of 89.3\% and an average accuracy of 91.3%.
description: 7 figures, 6 pages, journal
Celebrating Scottish Archaeology!
Creators: name: McGraw, Julianne
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Accurate and Efficient Waveform Model for Precessing Binary Black Holes
Creators: name: Yu, Hang
name: Roulet, Javier
name: Venumadhav, Tejaswi
name: Zackay, Barak
name: Zaldarriaga, Matias
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present IMRPhenomXODE, a new phenomenological frequency-domain waveform approximant for gravitational wave (GW) signals from precessing binary black holes (BBHs) with generic spin configurations. We build upon the success of IMRPhenomXPHM [G. Pratten et al., Phys. Rev. D 103, 104056 (2021), which is one of the most widely adopted waveform approximants in GW data analyses that include spin precession, and introduce two additional significant improvements. First, we employ an efficient technique to numerically solve the (next-to)$^4$-leading-order post-Newtonian precession equations, which allows us to accurately determine the evolution of the orientation of the orbital angular momentum $\boldsymbol{\hat{L}}_{\rm N}$ even in cases with complicated precession dynamics, such as transitional precession. Second, we recalibrate the phase of GW modes in the frame coprecessing with $\boldsymbol{\hat{L}}_{\rm N}$ against SEOBNRv4PHM [S. Ossokine et al., Phys. Rev. D 102, 044055 (2020)] to capture effects due to precession such as variations in the spin components aligned with $\boldsymbol{\hat{L}}_{\rm N}$. By incorporating these new features, IMRPhenomXODE achieves matches with SEOBNRv4PHM that are better than 99% for most BBHs with mass ratios $q \geq 1/6$ and with arbitrary spin configurations. In contrast, the mismatch between IMRPhenomXPHM and SEOBNRv4PHM often exceeds 10% for a BBH with $q\lesssim 1/2$ and large in-plane or antialigned spin components. Our implementation is also computationally efficient, with waveform evaluation times that can even be shorter than those of IMRPhenomXPHM for BBH signals with long durations and hence high frequency resolutions. The accuracy and efficiency of IMRPhenomXODE position it as a valuable tool for GW event searches, parameter estimation analyses, and the inference of underlying population properties.
description: 24 pages, 14 figures, 3 tables. Published in PRD
Prediction and Detection of FDIA and DDoS Attacks in 5G Enabled IoT
Creators: name: Moudoud, Hajar
name: Khoukhi, Lyes
name: Cherkaoui, Soumaya
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Security in the fifth generation (5G) networks has become one of the prime concerns in the telecommunication industry. 5G security challenges come from the fact that 5G networks involve different stakeholders using different security requirements and measures. Deficiencies in security management between these stakeholders can lead to security attacks. Therefore, security solutions should be conceived for the safe deployment of different 5G verticals (e.g., industry 4.0, Internet of Things (IoT), etc.). The interdependencies among 5G and fully connected systems, such as IoT, entail some standard security requirements, namely integrity, availability, and confidentiality. In this article, we propose a hierarchical architecture for securing 5G enabled IoT networks, and a security model for the prediction and detection of False Data Injection Attacks (FDIA) and Distributed Denial of Service attacks (DDoS). The proposed security model is based on a Markov stochastic process, which is used to observe the behavior of each network device, and employ a range-based behavior sifting policy. Simulation results demonstrate the effectiveness of the proposed architecture and model in detecting and predicting FDIA and DDoS attacks in the context of 5G enabled IoT.
description: This paper has been accepted for publication by the IEEE Network. The final version will be published by the IEEE
Visard mask
Creators: name: Cassidy, Julie
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
The Politics of (Not) Giving a Sh*t: Understanding the Invisibilization of Queer South Asian Women in Pride Toronto
Creators: name: Patel, Sonali
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Invisibilization
Identity-Based Violence
Queer South Asian Women
LGBTQ
Critical Ethnography

description: This thesis builds on the findings of my previous study, which established that queer South Asian women (QSAW) feel invisibilized in Toronto’s LGBTQ+ community (see Patel, 2019). The present study critically investigates the operation and cultural reproduction of power in organizational practices that invisibilize QSAW within Pride Toronto™, as a means of diagnosing the problem in mainstream LGBTQ+ organizations more broadly. The following research question is explored: How do the cultural underpinnings of Pride Toronto™ contribute to the invisibilization of queer South Asian women in the broader LGBTQ+ community? This critical ethnography substantiates the invisibilization of QSAW in the LGBTQ+ community as an institutionalized form of identity-based violence. This study rejects the argument that invisibility is exclusively felt by QSAW. Instead, this thesis demonstrates that QSAW are invisibilized by the willful negligence of dominant actors in knowledge practices, as well as assimilationist politics that mandate outness, which invalidate and exclude QSAW. This study further finds that QSAW remain invisibilized in the broader LGBTQ+ community as a result of Pride organizations branding as diverse and inclusive, while simultaneously advancing colonial knowledge about queer identities and ideologies that re-write the narratives of QSAW in mainstream LGBTQ+ discourse.
Chirped Bloch-Harmonic oscillations in a parametrically forced optical lattice
Creators: name: Ali, Usman
name: Holthaus, Martin
name: Meier, Torsten
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The acceleration theorem for wavepacket propagation in periodic potentials disentangles the kspace dynamics and real-space dynamics. This is well known and understood for Bloch oscillations and super Bloch oscillations in the presence of position-independent forces. Here, we analyze the dynamics of a model system in which the k-space dynamics and the real-space dynamics are inextricably intertwined due to a position-dependent force which is provided by a parabolic trap. We demonstrate that this coupling gives rise to significantly modified and rich dynamics when the lattice is shaken by a modulated parabolic potential. The dynamics range from chirped Bloch-Harmonic oscillations to the asymmetric spreading oscillations. We analyze these findings by tracing the spatio-temporal dynamics in real space and by visualizing the relative phase in the k-space dynamics which leads to an accurate explanation of the obtained phenomena. We also compare our numerical results to a local acceleration model and obtain very good agreement for the case of coherent oscillations, however, deviations for oscillations with spreading dynamics which altogether supports the interpretations of our findings.
description: arXiv admin note: substantial text overlap with arXiv:2204.12134
Templum Pacis, Rome
Creators: name: Valeriehiggens
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
An Investigation of the Role of Actinotrichia During Zebrafish Caudal Fin Regeneration
Creators: name: Keshinro, Bidemi
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Actinotrichia
Zebrafish
Regeneration

description: Zebrafish, danio rerio, are bony fish in the Teleost class. Zebrafish can regenerate most organs, including their fins. The caudal fin of zebrafish adults has bundles of rigid, uncalcified fibrils, termed actinotrichia, at the distal end of each lepidotrichia. During embryonic and early larval stages of fin development, actinotrichia are synthesized between the fin fold epidermis. Actinotrichia remain present in the fins of adult fish and during fin regeneration. They provide structural support and facilitate mesenchymal cell migration during fin development and regeneration. The importance of the role of actinotrichia for fin formation and regeneration can be studied through loss of function analysis of structural components of the actinotrichia. Our lab identified two genes, actinodin1 and actinodin2 (and1, and2), that are coding for structural proteins of the actinotrichia. CRISPR/Cas9 mediated knockout of and1 and and2 lead to loss of actinotrichia in the embryonic fins. Immunohistochemistry with anti-And1 and anti-ColII antibodies, in addition to controlled tissue degradation to observe actinotrichia fibers revealed the absence of actinotrichia in the caudal fins of adult and1/2 double homozygous mutants. We hypothesized that loss of actinotrichia will lead to the disruption of mesenchymal cell migration during development and regeneration, resulting in fin growth and morphology defects. The intact adult caudal fin of and1/2 double mutants have fewer rays (lepidotrichia) and these lepidotrichia are shorter and wavy when compared to WT. Along the lepidotrichia of actinodin mutants, there is an uneven distribution of joints revealing that there are defects in ray patterning. We carried out a regeneration time course analysis to compare caudal fin regeneration in WT and and1/2 double homozygous mutants. The and1/2 double homozygous mutants have a delay in bone re-formation and defects in joint patterning are observed in regenerating rays. From these results, and1 and and2 are shown to be required for actinotrichia formation. In addition, morphological analyses identified that actinotrichia is required for proper caudal fin growth and patterning during development and regeneration.
Eye-focused Detection of Bell's Palsy in Videos
Creators: name: Ansari, Sharik Ali
name: Jerripothula, Koteswar Rao
name: Nagpal, Pragya
name: Mittal, Ankush
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Multimedia (cs.MM)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we present how Bell's Palsy, a neurological disorder, can be detected just from a subject's eyes in a video. We notice that Bell's Palsy patients often struggle to blink their eyes on the affected side. As a result, we can observe a clear contrast between the blinking patterns of the two eyes. Although previous works did utilize images/videos to detect this disorder, none have explicitly focused on the eyes. Most of them require the entire face. One obvious advantage of having an eye-focused detection system is that subjects' anonymity is not at risk. Also, our AI decisions based on simple blinking patterns make them explainable and straightforward. Specifically, we develop a novel feature called blink similarity, which measures the similarity between the two blinking patterns. Our extensive experiments demonstrate that the proposed feature is quite robust, for it helps in Bell's Palsy detection even with very few labels. Our proposed eye-focused detection system is not only cheaper but also more convenient than several existing methods.
description: Published in the Proceedings of the 34th Canadian Conference on Artificial Intelligence. Please cite this paper in the following manner: S. A. Ansari, K. R. Jerripothula, P. Nagpal, and A. Mittal. "Eye-focused Detection of Bell's Palsy in Videos". In: Proceedings of the 34th Canadian Conference on Artificial Intelligence (June 8, 2021). doi: 10.21428/594757db.d2f8342b
Supersymmetric Intersecting Branes on the Waves
Creators: name: Maeda, Kei-ichi
name: Ohta, Nobuyoshi
name: Tanabe, Makoto
name: Wakebe, Ryo
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct a general family of supersymmetric solutions in time- and space-dependent wave backgrounds in general supergravity theories describing single and intersecting p-branes embedded into time-dependent dilaton-gravity plane waves of an arbitrary (isotropic) profile, with the brane world-volume aligned parallel to the propagation direction of the wave. We discuss how many degrees of freedom we have in the solutions. We also propose that these solutions can be used to describe higher-dimensional time-dependent "black holes", and discuss their property briefly.
description: 12 pages, LaTeX
A no-go result for implementing chiral symmetries by locality-preserving unitaries in a 3 dimensional Hamiltonian lattice model of fermions
Creators: name: Fidkowski, Lukasz
name: Xu, Cenke
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We argue that the chiral $U(1)_A$ symmetry of a Weyl fermion cannot be implemented by a shallow depth quantum circuit operation in a fermionic lattice Hamiltonian model with finite dimensional onsite Hilbert spaces. We also extend this result to discrete ${\mathbb{Z}}_{2N}$ subgroups of $U(1)_A$, in which case we show that for $N_f$ Weyl fermions of the same helicity, this group action cannot be implemented with shallow depth circuits when $N_f$ is not an integer multiple of $2N$.
description: 3 figures, v3 typo fixed
Setting up for the Third Basing House Field Season
Creators: name: Hampshire Cultural Trust
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
ASOC: Adaptive Self-aware Object Co-localization
Creators: name: Jerripothula, Koteswar Rao
name: Mukherjee, Prerana
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The primary goal of this paper is to localize objects in a group of semantically similar images jointly, also known as the object co-localization problem. Most related existing works are essentially weakly-supervised, relying prominently on the neighboring images' weak-supervision. Although weak supervision is beneficial, it is not entirely reliable, for the results are quite sensitive to the neighboring images considered. In this paper, we combine it with a self-awareness phenomenon to mitigate this issue. By self-awareness here, we refer to the solution derived from the image itself in the form of saliency cue, which can also be unreliable if applied alone. Nevertheless, combining these two paradigms together can lead to a better co-localization ability. Specifically, we introduce a dynamic mediator that adaptively strikes a proper balance between the two static solutions to provide an optimal solution. Therefore, we call this method \textit{ASOC}: Adaptive Self-aware Object Co-localization. We perform exhaustive experiments on several benchmark datasets and validate that weak-supervision supplemented with self-awareness has superior performance outperforming several compared competing methods.
description: Published in IEEE ICME 2021. Please cite this paper in the following manner: K. R. Jerripothula and P. Mukherjee, "ASOC: Adaptive Self-Aware Object Co-Localization," 2021 IEEE International Conference on Multimedia and Expo (ICME), 2021, pp. 1-6, doi: 10.1109/ICME51207.2021.9428191
Iron Age textiles on bronzes
Creators: name: Harris, Susanna
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Peter and Victoria's ten top tips for a career in Archaeology
Creators: name: Reavill, Peter
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Confronting Substellar Theoretical Models with Stellar Ages
Creators: name: Dupuy, Trent J.
name: Liu, Michael C.
name: Ireland, Michael J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: By definition, brown dwarfs never reach the main-sequence, cooling and dimming over their entire lifetime, thus making substellar models challenging to test because of the strong dependence on age. Currently, most brown dwarfs with independently determined ages are companions to nearby stars, so stellar ages are at the heart of the effort to test substellar models. However, these models are only fully constrained if both the mass and age are known. We have used the Keck adaptive optics system to monitor the orbit of HD 130948BC, a brown dwarf binary that is a companion to the young solar analog HD 130948A. The total dynamical mass of 0.109+/-0.003 Msun shows that both components are substellar, and the ensemble of available age indicators from the primary star suggests an age comparable to the Hyades, with the most precise age being 0.79 Gyr based on gyrochronology. Therefore, HD 130948BC is unique among field L and T dwarfs as it possesses a well-determined mass, luminosity, and age. Our results indicate that substellar evolutionary models may underpredict the luminosity of brown dwarfs by as much as a factor of ~2-3x. The implications of such a systematic error in evolutionary models would be far-reaching, for example, affecting determinations of the initial mass function and predictions of the radii of extrasolar gas-giant planets. This result is largely based on the reliability of stellar age estimates, and the case study of HD 130948A highlights the difficulties in determining the age of an arbitrary field star, even with the most up-to-date chromospheric activity and gyrochronology relations. In order to better assess the potential systematic errors present in substellar models, more refined age estimates for HD 130948A and other stars with binary brown dwarf companions (e.g., eps Ind Bab) are critically needed.
description: 6 pages, Proceedings of IAU Symposium 258: "The Ages of Stars"
Fabricating the Past
Creators: name: Moore, Elizabeth
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Hydrophobically gated memristive nanopores for neuromorphic applications
Creators: name: Paulo, Gonçalo
name: Sun, Ke
name: di Muccio, Giovanni
name: Gubbiotti, Alberto
name: della Rocca, Blasco Morozzo
name: Geng, Jia
name: Maglia, Giovanni
name: Chinappi, Mauro
name: Giacomello, Alberto
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Brain-inspired computing has the potential to revolutionise the current von Neumann architecture, advancing machine learning applications. Signal transmission in the brain relies on voltage-gated ion channels, which exhibit the electrical behaviour of memristors, resistors with memory. State-of-the-art technologies currently employ semiconductor-based neuromorphic approaches, which have already demonstrated their efficacy in machine learning systems. However, these approaches still cannot match performance achieved by biological neurons in terms of energy efficiency and size. In this study, we utilise molecular dynamics simulations, continuum models, and electrophysiological experiments to propose and realise a bioinspired hydrophobically gated memristive nanopore. Our findings indicate that hydrophobic gating enables memory through an electrowetting mechanism, and we establish simple design rules accordingly. Through the engineering of a biological nanopore, we successfully replicate the characteristic hysteresis cycles of a memristor \tr{and construct a synaptic device capable of learning and forgetting}. This advancement offers a promising pathway for the realization of nanoscale, cost- and energy-effective, and adaptable bioinspired memristors.
The Spatial Evolution of Stellar Structures in the LMC
Creators: name: Bastian, Nate
name: Gieles, Mark
name: Ercolano, Barbara
name: Gutermuth, Rob
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of the spatial distribution of various stellar populations within the Large Magellanic Cloud. We combine mid-infrared selected young stellar objects, optically selected samples with mean ages between ~9 and ~1000 Myr, and existing stellar cluster catalogues to investigate how stellar structures form and evolve within the LMC. For the analysis we use Fractured Minimum Spanning Trees, the statistical Q parameter, and the two-point correlation function. Restricting our analysis to young massive (OB) stars we confirm our results obtained for M33, namely that the luminosity function of the groups is well described by a power-law with index -2, and that there is no characteristic length-scale of star-forming regions. We find that stars in the LMC are born with a large amount of substructure, consistent with a 2D fractal distribution with dimension ~1.8 and evolve towards a uniform distribution on a timescale of ~175 Myr. This is comparable to the crossing time of the galaxy and we suggest that stellar structure, regardless of spatial scale, will be eliminated in a crossing time. This may explain the smooth distribution of stars in massive/dense young clusters in the Galaxy, while other, less massive, clusters still display large amounts of structure at similar ages. By comparing the stellar and star cluster distributions and evolving timescales, we show that infant mortality of clusters (or 'popping clusters') have a negligible influence on galactic structure. Finally, we quantify the influence of the elongation, differential extinction, and contamination of a population on the measured Q value.
description: 12 pages, 11 figures, MNRAS accepted
43,847 sites and counting...
Creators: name: Smith, Jolene
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Detailed beta-decay study of 33Ar
Creators: name: Adimi, N.
name: Dominguez-Reyes, R.
name: Alcorta, M.
name: Bey, A.
name: Blank, B.
name: Borge, M. J. G.
name: Santos, F. de Oliveira
name: Dossat, C.
name: Fynbo, H. O. U.
name: Giovinazzo, J.
name: Knudsen, H. H.
name: Madurga, M.
name: Matea, I.
name: Perea, A.
name: Summerer, K.
name: Tengblad, O.
name: Thomas, J. C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The proton-rich nucleus 33Ar has been studied by detailed proton and gamma-ray spectroscopy at the low-energy facility of SPIRAL at GANIL. Proton and gamma-ray singles and coincidence measurements allowed to establish a quasi complete decay scheme of this nucleus. By comparing the proton intensity to different daughter states, tentative spin assignments have been made for some of the states of 33Cl. The Gamow-Teller strength distribution is deduced and compared to shell-model calculations and a quenching factor is determined. States close to the isobaric analogue state are searched for with respect to isospin mixing.
description: 14 pages, 9 figures, accepted for publication in PRC
Workshop "Datos, humanidades y antropoceno: abrir prácticas"
Creators: name: Brussa, Virginia
Publisher: name: Zenodo
Year: 2021
Subjects: datosabiertos
GobiernoAbierto
InvestigaciónAbierta
Políticas
Datosabiertosdeinvestigación

description: Workshop desarrollado en el marco del Simposio "Acceso Abierto e inclusivo en la investigación" llevado a cabo de forma virtual durante el 8 al 11 de noviembre de 2021
Metamemory, incentives and the use and generalisation of a cumulative rehearsal strategy in mildly retarded children
Creators: name: Tonkin, K
Publisher: name: University Of Tasmania
Year: 2023

description: The major issue addressed in this study was the relation-ship between the use and generalisation of a trained mnemonic strategy and metamemory, knowledge of memory, obtained after training in the strategy, in mildly retarded children. Twenty-five mildly retarded children were trained to use a cumulative rehearsal strategy in a free recall, list learning task. Use of the strategy in the training task and generalisation of the strategy to a novel task were assessed concurrently by two measures of rehearsal (overt rehearsal scores and linear trend in item exposure times), in conditions of high and low incentive to remember where subjects were respectively, either reinforced or not-reinforced for recall. Three measures of different aspects of metamemory were obtained before and after training in strategy use. Only one of these measures indicated significant change in metamemory following training in the rehearsal strategy. Canonical correlations were performed on the post-test independent measures (the three measures of metamemory) and the dependent measures (the two measures of rehearsal) obtained after training. These analyses did not indicate significant relationships between post-test metamemory and use or generalisation of the rehearsal strategy in either high or low incentive conditions. The findings of this study are discussed in relation to the involvement of automatic versus conscious control of strategy use.
Communication-Free Distributed Charging Control for Electric Vehicle Group
Creators: name: Yu, Heyang
name: Xu, Chuanzi
name: Wang, Weifeng
name: Geng, Guangchao
name: Jiang, Quanyuan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The disordered charging of electric vehicles (EVs) in residential areas leads to a rapid increase of the peak load, causing transformer overload, but the charging control of EV group can effectively alleviate this phenomenon. However, existing charging control methods need reliable two-way communication infrastructure, which brings high operation costs and security risks. To offer a backup strategy for charging control of EVs after communication facilities fail, this paper proposes a communication-free charging control scheme to provide a decentralized on-site charging strategy for EV group. First, an uncontrollable EV group baseline estimation considering charging behaviors enabled by Gaussian mixture model (GMM) is proposed to acquire the capacity margin forecasting for controllable EVs. Next, this paper proposes a probabilistic distributed control method to assist users formulate the charging plan autonomously. Here, the charging behavior of EV group is regulated from an optimization with uncertain boundary conditions to a sampling with uncertain feasible regions expressed by a probability distribution. Finally, the scheme is verified via real-world EV charging data from a residential area in Hangzhou, China. The results show that this method can reduce the probability of transformer overload caused by out-of-order EV charging after a communication failure.
description: This paper has been accepted by IEEE Transactions on Smart Grid
Ab-initio study of the electronic structure and magnetic properties of Ce$_2$Fe$_{17}$
Creators: name: Vishina, Alena
name: Eriksson, Olle
name: Vekilova, Olga Yu.
name: Bergman, Anders
name: Herper, Heike C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Ce$_2$Fe$_{17}$ intermetallic compound has been studied intensely for several decades; its low-temperature state is reported experimentally either as ferromagnetic or antiferromagnetic by different authors, with a measured ordering temperature ranging within a hundred Kelvin. The existing theoretical investigations overestimate the experimental total magnetic moment of Ce$_2$Fe$_{17}$ by 20-40 % and predict a ferromagnetic ground state. By means of first-principle electronic structure calculations, we show that the total magnetic moment of Ce$_2$Fe$_{17}$ can be reproduced within the Local Density Approximation while functionals based on the Generalized Gradient Approximation fail. Atomistic spin dynamics simulations are shown to capture the change in the magnetic state of Ce$_2$Fe$_{17}$ with temperature, and closely replicate the reported helical structure that appears in some of the experimental investigations.
AIDPATH - Modular Manufacturing Platform for AI-enabled hospital-based ATMP Production
Creators: name: Erkens, Frederik
name: :Unav
Publisher: name: Fraunhofer-Gesellschaft
Year: 2021
Subjects: CAR-T Cells
Automation
ATMP
Modular Manufacturing

description: The automation and scale-up of ATMP manufacturing is a pathway to shorten vein-to-vein time and improve therapy availability. Current manufacturing processes are labor intensive complex manual pro-cesses. State-of-the-art automated ATMP manufacturing system have been a step in the right direction but miss out on efficient scalability as they rely on up-numbering approaches to increase the productivity of a manufacturing site. Traditional manufacturing approaches also rely on centralized production which introduces shipping delays as the cells need to be transported in a frozen state, requiring complex infrastructure. Decentralization, ATMP production at the point of care, could reduce the need for complex transportation networks and shorten vein-to-vein time to improve patient care. The AIDPATH project aims to build such a decentralized automated production platform capable of producing chimeric antigen receptor (CAR) T cells in the hospital. To support the production process, the platform will integrate hospital and patient data to schedule the manufacturing steps as well as optimize the parameters for the production using trustworthy AI-technology. The AI will be supported using data from the LogiqCare platform where all the data relevant to the product is stored in accordance with GDPR (EU 2016/679) guidelines. This talk presents the AIDPATH physical platform. An automated CAR-T manufacturing system with integrated quality control. The platform employs a closed handling focused approach to enable the parallel manufacturing of multiple patient’s therapies while excluding the possibility of cross-contamination. Integrated in-line quality control provides cell count, viability and identity to the control system which uses them for process adaption and optimization. Finally, the laboratory automation concept including the software framework for seamless device integration is presented.
Developed Method. Interactions and their quantum picture
Creators: name: Ogonowski, Piotr
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: By developing the previously proposed method of combining continuum mechanics with Einstein Field Equations, it has been shown that the classic relativistic description, curvilinear description, and quantum description of the physical system may be reconciled using the proposed Alena Tensor. For a system with an electromagnetic field, the Lagrangian density equal to the invariant of the electromagnetic field was obtained, vanishing four-divergence of canonical four-momentum appears to be consequence of the Poyinting theorem, and explicit form of one of gauges of the electromagnetic four-potential was introduced. The proposed method allows for further development with additional fields.
description: After revisions in a journal
Amplifying quantum discord during inflationary magnetogenesis through violation of parity
Creators: name: Tripathy, Sagarika
name: Raveendran, Rathul Nath
name: Parattu, Krishnamohan
name: Sriramkumar, L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is well known that, during inflation, the conformal invariance of the electromagnetic action has to be broken in order to produce magnetic fields of observed strengths today. Often, to further enhance the strengths of the magnetic fields, parity is also assumed to be violated when the fields are being generated. In this work, we examine the evolution of the quantum state of the Fourier modes of the non-conformally coupled and parity violating electromagnetic field during inflation. We utilize tools such as the Wigner ellipse, squeezing parameters and quantum discord to understand the evolution of the field. We show that the violation of parity leads to an enhancement of the squeezing amplitude and the quantum discord (or, equivalently, in this context, the entanglement entropy) associated with a pair of opposite wave vectors for one of the two states of polarization (and a suppression for the other state of polarization), when compared to the case wherein parity is conserved. We highlight the similarities between the evolution of the Fourier modes of the electromagnetic field when parity is violated during inflation and the behavior of the modes of a charged, quantum, scalar field in the presence of a constant electric field in a de Sitter universe. We briefly discuss the implications of the results we obtain.
description: 24 pages, 5 figures
Immersions of Sasaki-Ricci solitons into homogeneous Sasakian manifolds
Creators: name: Mossa, Roberto
name: Placini, Giovanni
Publisher: name: arXiv
Year: 2023
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C25 (Primary) 53C42, 53C55, 53C30 (Secondary)

description: We discuss local Sasakian immersion of Sasaki-Ricci solitons (SRS) into fiber products of homogeneous Sasakian manifolds. In particular, we prove that SRS locally induced by a large class of fiber products of homogeneous Sasakian manifolds are, in fact, $η$-Einstein. The results are stronger for immersions into Sasakian space forms. Moreover, we show an example of a Kähler-Ricci soliton on $\mathbb C^n$ which admits no local holomorphic isometry into products of homogeneous bounded domains with flat Kähler manifolds and generalized flag manifolds.