cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
EXPLORAÇÃO ESPACIAL SUSTENTÁVEL - AVANÇOS TECNOLÓGICOS E DESAFIOS CÓSMICOS
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2023
Subjects: Space Exploration
Reusable Rockets
Housing Innovations
Autonomous Robotics
Space Sustainability
Inflatable Modules
Deep Space Communication
Microgravity
Space Factories
Human Health in Space
Exploração Espacial
Foguetes Reutilizáveis
Inovações Habitacionais
Robótica Autônoma
Sustentabilidade Espacial
Módulos Infláveis
Comunicação no Espaço Profundo
Microgravidade
Fábricas Espaciais
Saúde Humana no Espaço

description: O artigo aborda uma série de inovações cruciais que estão moldando o futuro da exploração espacial. Três áreas principais são destacadas: foguetes reutilizáveis, inovações habitacionais e robótica autônoma. Os foguetes reutilizáveis são apresentados como um marco significativo, reduzindo custos operacionais e democratizando o acesso ao espaço. Inovações habitacionais, como módulos infláveis, são essenciais para a sustentabilidade, possibilitando estações espaciais autossuficientes. A robótica autônoma, equipada com algoritmos avançados, redefine as capacidades operacionais em ambientes extraterrestres, abrindo caminho para uma exploração mais diversificada. O artigo também explora desafios específicos, como a microgravidade, e propõe soluções, como contramedidas para a saúde humana. Ao conectar temas como comunicação no espaço profundo, fábricas espaciais e a exploração da lua Titã, o artigo oferece uma visão abrangente, destacando a importância da autonomia, eficiência e sustentabilidade para o futuro da exploração cósmica.

 

The article addresses a number of crucial innovations that are shaping the future of space exploration. Three main areas are highlighted: reusable rockets, housing innovations and autonomous robotics. Reusable rockets are presented as a significant milestone, reducing operating costs and democratizing access to space. Housing innovations such as inflatable modules are essential for sustainability, enabling self-sufficient space stations. Autonomous robotics, equipped with advanced algorithms, redefine operational capabilities in extraterrestrial environments, paving the way for more diverse exploration. The article also explores specific challenges, such as microgravity, and proposes solutions, such as countermeasures for human health. By connecting topics such as deep space communication, space factories and the exploration of the moon Titan, the article offers a comprehensive overview, highlighting the importance of autonomy, efficiency and sustainability for the future of cosmic exploration.
title: Microbial abundance in lacustrine sediments
title: a case study from Lake Van, Turkey
titleType: Subtitle
Creators: name: Kallmeyer, Jens
name: Grewe, Sina
name: Glombitza, Clemens
name: Kitte, J. Axel
Publisher: name: Universität Potsdam
Year: 2019

description: The ICDP "PaleoVan" drilling campaign at Lake Van, Turkey, provided a long (> 100 m) record of lacustrine subsurface sedimentary microbial cell abundance. After the ICDP campaign at Potrok Aike, Argentina, this is only the second time deep lacustrine cell counts have been documented. Two sites were cored and revealed a strikingly similar cell distribution despite differences in organic matter content and microbial activity. Although shifted towards higher values, cell counts from Lake Potrok Aike, Argentina, reveal very similar distribution patterns with depth. The lacustrine cell count data are significantly different from published marine records; the most probable cause is differences in sedimentary organic matter composition with marine sediments containing a higher fraction of labile organic matter. Previous studies showed that microbial activity and abundance increase centimetres to metres around geologic interfaces. The finely laminated Lake Van sediment allowed studying this phenomenon on the microscale. We sampled at the scale of individual laminae, and in some depth intervals, we found large differences in microbial abundance between the different laminae. This small-scale heterogeneity is normally overlooked due to much larger sampling intervals that integrate over several centimetres. However, not all laminated intervals exhibit such large differences in microbial abundance, and some non-laminated horizons show large variability on the millimetre scale as well. The reasons for such contrasting observations remain elusive, but indicate that heterogeneity of microbial abundance in subsurface sediments has not been taken into account sufficiently. These findings have implications not just for microbiological studies but for geochemistry as well, as the large differences in microbial abundance clearly show that there are distinct microhabitats that deviate considerably from the surrounding layers.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 723
Hot Degenerates in the MCT Survey. III. A Sample of White Dwarf Stars in the Southern Hemisphere
Creators: name: Bergeron, P.
name: Wesemael, F.
name: Fontaine, G.
name: Lamontagne, R.
name: Demers, S.
name: Bédard, A.
name: Gingras, M. -J.
name: Blouin, S.
name: Irwin, M. J.
name: Kepler, S. O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present optical spectra of 144 white dwarfs detected in the Montreal-Cambridge-Tololo (MCT) colorimetric survey, including 120 DA, 12 DB, 4 DO, 1 DQ, and 7 DC stars. We also perform a model atmosphere analysis of all objects in our sample using the so-called spectroscopic technique, or the photometric technique in the case of DC white dwarfs. The main objective of this paper is to contribute to the ongoing effort of confirming spectroscopically all white dwarf candidates in the Gaia survey, in particular in the southern hemisphere. All our spectra are made available in the Montreal White Dwarf Database.
description: Accepted for publication in The Astronomical Journal, 43 pages, 2 tables, 13 figures
Wigner Distribution Functions and the Representation of Canonical Transformations in Time-Dependent Quantum Mechanics
Creators: name: Schuch, Dieter
name: Moshinsky, Marcos
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: For classical canonical transformations, one can, using the Wigner transformation, pass from their representation in Hilbert space to a kernel in phase space. In this paper it will be discussed how the time-dependence of the uncertainties of the corresponding time-dependent quantum problems can be incorporated into this formalism.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
La singolarità di un caso accademico interdisciplinare italiano: prospettive per una valutazione ed equa e sostenibile di ricerche antropolinguistiche di progressiva rilevanza filologica in euro-zona
Creators: name: Tonfoni, Graziella
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: L-FIL-LET/13 Filologia della letteratura italiana

description: In questa monografia si indicano le conseguenze di una estrema oggettiva difficoltà, in particolare presso la comunità accademica italiana, ad affrontare i problemi che emergono nella prassi di valutazione, derivati da entropia comunicativa, confusione informativa, complicazione paradossale nell'applicazione di criteri di giudizio come emergono nella compilazione della modulistica attuale. Si  analizza uno specifico caso accademico italiano 'effettivamente paradossale', evitando ogni  sfumatura polemica, affinché semplicemente diventi materiale di considerazione pacata, di riflessione comunitaria. Si tratta di una sintesi, compendio di estrema attualità, che documenta alcune tappe, fasi più recenti di un complesso,  articolato, costante lavoro di ricerca interdisciplinare durante epoche successive, diverse, accelerate, tumultuose. Ne emergono metodi con risultati, sempre troppo avanti sui tempi per essere compresi in tempi realistici. Si ripropone la consultazione selettiva di saggi recenti, già resi disponibili, ad una vasta comunità accademica, che oggi riflette e si confronta sul meccanismi valutativi sempre cangianti, spesso in contraddizione. Si evidenzia la necessità di avviare un percorso di “storia dei sistemi di valutazione”, attingendo anche alle ricerche indicate in questa silloge, basata su una esperienza unica, testimonianza singolare, documentata in euro-zona. Si evince la totale differenza, la non equiparabilità, la non equipollenza, dei casi accademici singoli, tutti fra loro molto diversi, che non possono e neppure devono essere considerati sulla base di categorie omologanti.
Thermodynamics of resonances and blurred particles
Creators: name: Voskresensky, D. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Exact and approximate expressions for thermodynamic characteristics of heated matter, which consists of particles with finite mass-widths, are constructed. They are expressed in terms of Fermi/Bose distributions and spectral functions, rather than in terms of more complicated combinations between real and imaginary parts of the self-energies of different particle species. Therefore thermodynamically consistent approximate treatment of systems of particles with finite mass-widths can be performed, provided spectral functions of particle species are known. Approximation of the free resonance gas at low densities is studied. Simple ansatz for the energy dependence of the spectral function is suggested that allows to fulfill thermodynamical consistency conditions. On examples it is shown that a simple description of dense systems of interacting particle species can be constructed, provided some species can be treated in the quasiparticle approximation and others as particles with widths. The interaction affects quasiparticle contributions, whereas particles with widths can be treated as free. Example is considered of a hot gas of heavy fermions strongly interacting with light bosons, both species with zero chemical potentials. The density of blurred fermions is dramatically increased for high temperatures compared to the standard Boltzmann value. The system consists of boson quasiparticles (with effective masses) interacting with fermion -- antifermion blurs. In thermodynamical values interaction terms partially compensate each other. Thereby, in case of a very strong coupling between species thermodynamical quantities of the system, like the energy, pressure and entropy, prove to be such as for the quasi-ideal gas mixture of quasi-free fermion blurs and quasi-free bosons.
description: 35 pages
title: Dendritic core-multishell nanocarriers in murine models of healthy and atopic skin
Creators: name: Radbruch, Moritz
name: Pischon, Hannah
name: Ostrowski, Anja
name: Volz, Pierre
name: Brodwolf, Robert
name: Neumann, Falko
name: Unbehauen, Michael
name: Kleuser, Burkhard
name: Haag, Rainer
name: Ma, Nan
name: Alexiev, Ulrike
name: Mundhenk, Lars
name: Gruber, Achim D.
Publisher: name: Universität Potsdam
Year: 2019

description: Dendritic hPG-amid-C18-mPEG core-multishell nanocarriers (CMS) represent a novel class of unimolecular micelles that hold great potential as drug transporters, e. g., to facilitate topical therapy in skin diseases. Atopic dermatitis is among the most common inflammatory skin disorders with complex barrier alterations which may affect the efficacy of topical treatment.

Here, we tested the penetration behavior and identified target structures of unloaded CMS after topical administration in healthy mice and in mice with oxazolone-induced atopic dermatitis. We further examined whole body distribution and possible systemic side effects after simulating high dosage dermal penetration by subcutaneous injection.

Following topical administration, CMS accumulated in the stratum corneum without penetration into deeper viable epidermal layers. The same was observed in atopic dermatitis mice, indicating that barrier alterations in atopic dermatitis had no influence on the penetration of CMS. Following subcutaneous injection, CMS were deposited in the regional lymph nodes as well as in liver, spleen, lung, and kidney. However, in vitro toxicity tests, clinical data, and morphometry-assisted histopathological analyses yielded no evidence of any toxic or otherwise adverse local or systemic effects of CMS, nor did they affect the severity or course of atopic dermatitis.

Taken together, CMS accumulate in the stratum corneum in both healthy and inflammatory skin and appear to be highly biocompatible in the mouse even under conditions of atopic dermatitis and thus could potentially serve to create a depot for anti-inflammatory drugs in the skin.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 724
Additional file 1 of Assessing the limitations of relief-based algorithms in detecting higher-order interactions
Creators: name: Freda, Philip J.
name: Ye, Suyu
name: Zhang, Robert
name: Moore, Jason H.
name: Urbanowicz, Ryan J.
Publisher: name: figshare
Year: 2024
Subjects: Biochemistry
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Mathematical Sciences not elsewhere classified

description: Supplementary Material 1.
Green's function for the Hodge Laplacian on some classes of Riemannian and Lorentzian symmetric spaces
Creators: name: Enciso, Alberto
name: Kamran, Niky
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We compute the Green's function for the Hodge Laplacian on the symmetric spaces M\timesΣ, where M is a simply connected n-dimensional Riemannian or Lorentzian manifold of constant curvature and Σis a simply connected Riemannian surface of constant curvature. Our approach is based on a generalization to the case of differential forms of the method of spherical means and on the use of Riesz distributions on manifolds. The radial part of the Green's function is governed by a fourth order analogue of the Heun equation.
description: 18 pages
Transmission in double quantum dots in the Kondo regime: Quantum-critical transitions and interference effects
Creators: name: da Silva, Luis G. Dias
name: Sandler, Nancy
name: Ingersent, Kevin
name: Ulloa, Sergio E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the transmission through a double quantum-dot system in the Kondo regime. An exact expression for the transmission coefficient in terms of fully interacting many-body Green's functions is obtained. By mapping the system into an effective Anderson impurity model, one can determine the transmission using numerical renormalization-group methods. The transmission exhibits signatures of the different Kondo regimes of the effective model, including an unusual Kondo phase with split peaks in the spectral function, as well as a pseudogapped regime exhibiting a quantum critical transition between Kondo and unscreened phases.
description: 4 pages, 3 figures; Submitted to Physica E (EP2DS-17 proceedings, oral presentation), updated Refs
title: Determining the optimal grid resolution for topographic analysis on an airborne lidar dataset
Creators: name: Smith, Taylor
name: Rheinwalt, Aljoscha
name: Bookhagen, Bodo
Publisher: name: Universität Potsdam
Year: 2019

description: Digital elevation models (DEMs) are a gridded representation of the surface of the Earth and typically contain uncertainties due to data collection and processing. Slope and aspect estimates on a DEM contain errors and uncertainties inherited from the representation of a continuous surface as a grid (referred to as truncation error; TE) and from any DEM uncertainty. We analyze in detail the impacts of TE and propagated elevation uncertainty (PEU) on slope and aspect.

Using synthetic data as a control, we define functions to quantify both TE and PEU for arbitrary grids. We then develop a quality metric which captures the combined impact of both TE and PEU on the calculation of topographic metrics. Our quality metric allows us to examine the spatial patterns of error and uncertainty in topographic metrics and to compare calculations on DEMs of different sizes and accuracies.

Using lidar data with point density of ∼10 pts m−2 covering Santa Cruz Island in southern California, we are able to generate DEMs and uncertainty estimates at several grid resolutions. Slope (aspect) errors on the 1 m dataset are on average 0.3∘ (0.9∘) from TE and 5.5∘ (14.5∘) from PEU. We calculate an optimal DEM resolution for our SCI lidar dataset of 4 m that minimizes the error bounds on topographic metric calculations due to the combined influence of TE and PEU for both slope and aspect calculations over the entire SCI. Average slope (aspect) errors from the 4 m DEM are 0.25∘ (0.75∘) from TE and 5∘ (12.5∘) from PEU. While the smallest grid resolution possible from the high-density SCI lidar is not necessarily optimal for calculating topographic metrics, high point-density data are essential for measuring DEM uncertainty across a range of resolutions.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 725
Relaxation process of magnetic friction under sudden changes in velocity
Creators: name: Komatsu, Hisato
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Although there have been many studies of statistical mechanical models of magnetic friction, most of these have focused on the behavior in the steady state. In this study, we prepare a system composed of a chain and a lattice of Ising spins that interact with each other, and investigate the relaxation of the system when the relative velocity $v$ changes suddenly. The situation where $v$ is given is realized by attaching the chain to a spring, the other end of which moves with a constant velocity $v$. Numerical simulation finds that, when the spring constant has a moderate value, the relaxation of the frictional force is divided into two processes, which are a sudden change and a slow relaxation. This behavior is also observed on regular solid surfaces, although caused by different factors than our model. More specifically, the slow relaxation process is caused by relaxation of the magnetic structure in our model, but is caused by creep deformation in regular solid surfaces.
description: 6 pages, 5 figures
On the matrix elements of dB=0 operators in the heavy meson decay widths
Creators: name: Becirevic, Damir
name: Fajfer, Svjetlana
name: Kamenik, Jernej F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We determine the chiral corrections to the matrix elements of the Delta B=0 four-quark operators which are relevant to the studies of the ratios of lifetimes of heavy-light mesons as well as to the power corrections to the inclusive semileptonic heavy-to-light decays. The chiral logarithmic corrections computed here can be combined with the forthcoming estimates of the corresponding matrix elements on the lattice to provide the reliable physics result of the well known bag-parameters B_(1,2) and epsilon_(1,2).
description: 12 pages, 1 figure
Η Εντερική Σίτιση στην Οξεία Παγκρεατίτιδα: Βιβλιογραφική Ανασκόπηση και Μετα-ανάλυση
Creators: name: Γεμουσακάκη, Ειρήνη Τριαντάφυλλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2025
Subjects: Σοβαρή Οξεία Παγκρεατίτιδα
Εντερική Σίτιση
Παρεντερική Σίτιση
Severe Acute Pancreatitis
Enteral Nutrition
Parenteral Nutrition

description: Αντικείμενο της εργασίας αποτελεί η ανάλυση των υπαρχόντων δεδομένων σχετικά με τη διατροφή σε ασθενείς με οξεία παγκρεατίτιδα. Στο γενικό μέρος πραγματοποιήθηκε ανασκόπηση της βιβλιογραφίας για την θέση της εντερικής διατροφής στη διαχείριση της οξείας παγκρεατίτιδας. Αναλύθηκαν δεδομένα όπως η επίδρασή της στην διατήρηση της ακεραιότητας του εντερικού φραγμού, η σύγκρισή της με την παρεντερική, η καταλληλότερη οδός χορήγησης, ο ιδανικός χρόνος έναρξης και η αξία των προβιοτικών. Στο ειδικό μέρος διενεργήθηκε μια μεταανάλυση έντεκα κλινικών δοκιμών για την σύγκριση της αποτελεσματικότητας και της ασφάλειας της πρώιμης έναρξης εντερικής διατροφής, με την παρεντερική διατροφή σε ασθενείς με σοβαρή οξεία παγκρεατίτιδα.
description: This study examines existing data on nutrition in patients with acute pancreatitis. The general section includes a literature review on the role of enteral nutrition in the management of acute pancreatitis, focusing on its impact on intestinal barrier integrity, its comparison with parenteral nutrition, the most appropriate route of administration, the optimal timing of initiation, and the value of probiotics. The research section presents a meta-analysis of eleven clinical trials comparing the efficacy and safety of early enteral nutrition versus parenteral nutrition in patients with severe acute pancreatitis.
Frequency-dependent capacitors using paper
Creators: name: McGuyer, Bart H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Measurements of capacitors made with paper sheets reveal a significant decrease in capacitance with increasing frequency from 10 to 100,000 Hz, offering a simple demonstration of complex dielectric phenomena using common equipment.
description: 3 pages, 2 figures
Flexopecten felipponei
Creators: name: Oviedo, Loreley
name: Pastorino, Guido
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Pectinida
Pectinidae
Flexopecten
Flexopecten felipponei

description: Flexopecten felipponei (Dall, 1922)
Figure 3
Prodissoconch
The Prodissoconch-1 has a faint radial striation, without distinct commarginal growth lines, mean length is 81 µm (n = 2). The Prodissoconch-2 has thin commarginal growth lines, mean length of the P-2 is 197 µm (n = 2), and P-1/P-2 length ratio is 0.41 (n = 2) (Table 3, Fig. 3F).
Nepioconch
The microsculpture of the LV is fine and presents regularly and densely distributed pits (Fig. 3A, C, E). The mean height of the LV is 1.97 mm (n = 2) and the height of the prismatic stage of RV is 1.93 mm (n = 2) (Table 4).
The ctenolium develops during the prismatic stage; the AA has an auricle prismatic stage. The byssal notch (RV) is deep, the byssal sinus (LV) still incipient.
Post-nepioconch
Ribs begin to develop rather early underlying the pitted and prismatic layer, respectively. The left valve has 28 to 34 faint folds (n = 2), with primary and secondary ribs being difficult to distinguish; there are no scales (Fig. 3A, B, C). The microsculpture of the fold interspaces morphs into elongate pits that, towards the shell edge, become fine antimarginal ridges and gutters (Fig. 3C).
The posterior and anterior auricles of the LV, and the posterior auricle of the RV show similar microsculpture patterns, interrupted by prominent growth ridges. The posterior auricle is slightly longer than the anterior one (ratio AA/PA = 0.92) (Table 4).
The free margin of posterior auricles is straight whereas the one in the anterior auricle is anteriorly inclined. Two well defined ribs start from the ‘auricle prismatic stage’ of the anterior auricle (n = 2) (Fig. 3D). The byssal notch becomes sinuous and the byssal sinus is more conspicuous than in the nepioconch. The active ctenolium presents three to four teeth (n = 2) (Table 4). The umbonal angle is obtuse (α =100º) (n = 2) (Table 4). The shell can be white or light yellow in color.
description: Published as part of Oviedo, Loreley & Pastorino, Guido, 2023, Description of the early shell morphology of three species of Pectinidae (Mollusca: Bivalvia) from Argentina, pp. 427-443 in Zootaxa 5361 (3) on page 435, DOI: 10.11646/zootaxa.5361.3.8, http://zenodo.org/record/10151183
Presentación: Tendencias investigativas sobre escritura académica en educación superior: un mapeo sistemático de literatura
Creators: name: Rey Castillo, Marisol
Publisher: name: Zenodo
Year: 2019
Subjects: Educación superior, escritura académica, alfabetización académica, habilidades de escritura, competencia comunicativa escrita

description: Los procesos de escritura en educación superior en Hispanoamérica han sido el centro de estudio para quienes están interesados en conocer, caracterizar y mejorar la competencia comunicativa escrita en este nivel académico. A lo largo de las últimas décadas, con la toma de conciencia sobre los procesos de la alfabetización académica, han surgido distintos estudios, desde diversos enfoques y con variados propósitos.  El objetivo de este trabajo fue identificar las tendencias en investigación de estudios realizados en el contexto hispanoamericano sobre escritura académica en educación superior. Mediante un mapeo sistemático de literatura se analizaron artículos publicados los últimos cinco años e incluidos en las bases de datos WoS, Scopus y SciELO, cuya lengua de publicación era inglés o español. A partir de este, se identificaron elementos como países en los que se realizaron las investigaciones, autores y publicaciones más citados, principales temas y otros aspectos específicos del contexto educativo en el que se realizó cada estudio. Esto permitió caracterizar, en líneas generales, los intereses investigativos en torno al tema en los últimos años.
Additional file 1 of Chinese herbal medicine for the treatment of intestinal cancer: preclinical studies and potential clinical applications
Creators: name: Zhang, Juan
name: Wu, Yulin
name: Tian, Yuanyang
name: Xu, Hongxi
name: Lin, Zhi-Xiu
name: Xian, Yan-Fang
Publisher: name: figshare
Year: 2024
Subjects: Pharmacology
Biotechnology
Cancer
Science Policy

description: Supplementary Material 1
Calorimeter R&D for the SuperNEMO Double Beta Decay Experiment
Creators: name: Kauer, Matthew
Publisher: name: arXiv
Year: 2008
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: SuperNEMO is a next-generation double beta decay experiment based on the successful tracking plus calorimetry design approach of the NEMO3 experiment currently running in the Laboratoire Souterrain de Modane (LSM). SuperNEMO can study a range of isotopes, the baseline isotopes are 82Se and possibly 150Nd. The total isotope mass will be 100-200 kg. A sensitivity to neutrinoless double beta decay half-life greater than 10e26 years can be reached which gives access to Majorana neutrino masses of 50-100 meV. One of the main challenges of the SuperNEMO R&D is the development of the calorimeter with an unprecedented energy resolution of 4% FWHM at 3 MeV (Qbb value of 82Se).
description: Presented at 13th International Conference on Calorimetry in High Energy Physics (CALOR08), Pavia, Italy, 26-30 May 2008
Time-magnified photon counting with a 550fs resolution
Creators: name: Li, Bowen
name: Bartos, Jan
name: Xie, Yijun
name: Huang, Shu-Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Time-resolved photon-counting plays an indispensable role in precision metrology in both classical and quantum regimes. In particular, time-correlated single-photon counting (TCSPC) has been the key enabling technology for applications such as low-light fluorescence lifetime spectroscopy and photon counting time-of-flight (ToF) 3D imaging. However, state-of-the-art TCSPC single-photon timing resolution (SPTR) is limited in the range of 10-100 ps by the available single-photon detector technology. In this paper, we experimentally demonstrate a time-magnified TCSPC (TM-TCSPC) that achieves an unprecedentedly short SPTR of 550 fs for the first time with an off-the-shelf single-photon detector. The TM-TCSPC can resolve ultrashort pulses with a 130-fs pulsewidth difference at a 22-fs accuracy. When applied to photon counting ToF 3D imaging, the TM-TCSPC greatly suppresses the range walk error that limits all photon counting ToF 3D imaging systems by 99.2 % (130 times) and thus provides unprecedentedly high depth measurement accuracy and precision of 26 μm and 3 μm, respectively.
description: 7 pages, 9 figures, journal
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Year: 2023
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A Novel Internet-of-Drones and Blockchain-based System Architecture for Search and Rescue
Creators: name: Nguyen, Tri
name: Katila, Risto
name: Gia, Tuan Nguyen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: With the development in information and communications technology (ICT) and drones such as Internet-of-Things (IoT), edge computing, image processing, and autonomous drones, solutions supporting search and rescue (SAR) missions can be developed with more intelligent capabilities. In most of the drone and unmanned aerial vehicle (UAV) based systems supporting SAR missions, several drones deployed in different areas acquire images and videos that are sent to a ground control station (GCS) for processing and detecting a missing person. Although this offers many advantages, such as easy management and deployment, the approach still has many limitations. For example, when a connection between a drone and a GCS has some problems, the quality of service cannot be maintained. Many drone and UAV-based systems do not support flexibility, transparency, security, and traceability. In this paper, we propose a novel Internet-of-Drones (IoD) architecture using blockchain technology. We implement the proposed architecture with different drones, edge servers, and a Hyperledger blockchain network. The proof-of-concept design demonstrates that the proposed architecture can offer high-level services such as prolonging the operating time of a drone, improving the capability of detecting humans accurately, and a high level of transparency, traceability, and security.
description: 8 figures and 11 pages
Zygochlamys patagonica
Creators: name: Oviedo, Loreley
name: Pastorino, Guido
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Pectinida
Pectinidae
Zygochlamys
Zygochlamys patagonica

description: Zygochlamys patagonica (King, 1832)
Figure 4
Prodissoconch
In the single specimen examined by scanning electron microscopy, the microsculpture of the P-1 could not be determined. Prodissoconch-2 presents commarginal growth lines (Fig. 4F). The lengths of P-1 and P-2 are 86 µm and 256 µm, respectively (n = 1), the P-1/P-2 ratio is 0.33 (Table 3).
Nepioconch
The microsculpture of the LV shows antimarginal riblets that are widening when these are crossed by thin commarginal growth (Fig. 4C, E). This pattern extends onto both the anterior and posterior auricles (Fig. 4A, B). The mean height is 2.3 mm (sd = 0.25, n = 6), the mean height of the prismatic stage of the right valve is 1.3 mm (sd = 0.20, n = 6). A radial row of protuberances accompanies the growth of the auricle prismatic stage and extends along the anterior auricle of the right valve (Fig. 4 D). The byssal notch is deep and wide.
Post-nepioconch
The nepioconch microstructure continues throughout this entire stage only that it becomes interrupted first by primary and then secondary ribs, together around 21 to 31 (mode = 28, n = 6) (Table 4). Where ribs meet commarginal growth steps, they become nodular; these nodules are best developed on the disc flanks and are more conspicuous on the LV than RV (Fig. 4A, B). The riblet-and-gutter microsculpture fills only the interspaces not crossing the ribs; they do become more pronouncedly antimarginal-like and also divergent. On the disc flanks, they meet the shell margin at a rather oblique angle. The sculpture is less conspicuous on the central disc. It is also present on both LV auricles and the posterior one of the RV.
The anterior auricle is slightly longer than the posterior one, giving an AA/PA ratio of 1.33 (n = 6) (Table 4). The free margins of the posterior auricles can be slightly anteriorly inclined and the free margins of the anterior auricle of LV is straight or inclined slightly toward anterior. The byssal notch is as wide as in the previous stage, and the active ctenolium presents two or three free hooked teeth (mode = 3; n = 6) (Fig. 4D). The mean umbonal angle is 89° (n = 6). (Table 4). Shell color is orange under natural light but less intense on the RV.
description: Published as part of Oviedo, Loreley & Pastorino, Guido, 2023, Description of the early shell morphology of three species of Pectinidae (Mollusca: Bivalvia) from Argentina, pp. 427-443 in Zootaxa 5361 (3) on pages 435-438, DOI: 10.11646/zootaxa.5361.3.8, http://zenodo.org/record/10151183
Toward Full Spatio-Temporal Control on the Nanoscale
Creators: name: Durach, Maxim
name: Rusina, Anastasia
name: Nelson, Keith
name: Stockman, Mark I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We introduce an approach to implement full coherent control on nanometer length scales. It is based on spatio-temporal modulation of the surface plasmon polariton (SPP) fields at the thick edge of a nanowedge. The SPP wavepackets propagating toward the sharp edge of this nanowedge are compressed and adiabatically concentrated at a nanofocus, forming an ultrashort pulse of local fields. The one-dimensional spatial profile and temporal waveform of this pulse are completely coherently controlled.
description: 4 pages, 3 figures Figures were replaced
Conversion of electron spectrum associated with fission into the antineutrino spectrum
Creators: name: Vogel, Petr
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The accuracy of the procedure that converts the experimentally determined electron spectrum associated with fission of the nuclear fuels ^{235}U, ^{239}Pu, ^{241}Pu, and ^{238}U into the $\barν_e$ spectrum is examined. By using calculated sets of mutually consistent spectra it is shown that the conversion procedure can result in a small $\sim$1% error provided several conditions are met. Chief among them are the requirements that the average nuclear charge as a function of the $β$ decay endpoint energy is independently known and that the $\barν_e$ spectrum is binned into bins that are several times larger than the width of the slices used to fit the electron spectrum.
description: Accepted for publication in Phys. Rev. C
Mixing-primary production coupling in Holberg Inlet, a tidally energetic fjord
Creators: name: Kessler, Thomas Alexander
Publisher: name: University of British Columbia
Year: 2010

description: Rupert basin, a fjord characterized by an inflow tidal jet and a seasonal growing cycle characteristic of well mixed coastal water masses. Physical evidence is presented which suggests that the jet is more positively buoyant and hence mixes more with the surface layer of the basin than previously thought. However on the basis of mass balance calculations, the effect on primary production is suggested to be secondary to wind/tide generated diffusion effects and to a planktonic grazer component. A ≈ 7 yr data set of environmental and primary production variables is evaluated statistically to infer the characteristic spatial and temporal scales of production in the basin, along with possible factors contributing to this distribution. The analysis indicates that persistent (i.e. orthogonal) horizontal features are generally lacking on the one month sampling time scale, except for structure shown to be evident in surface chlorophyll specific biomass distribution on the largest length scales of the basin (i.e. ca. 20 km). Orthogonal annual and inter-annual variance structure is shown to be lacking. Consistent with the mass balances, a partial correlation analysis of the same data set indicates that aside from irradiance, the dominant covariate of primary production is column stability, with the covariance of carbon uptake anti-correlated with stability. However, the covariance of biomass with stability is shown to be seasonally dependent (i.e. anti-correlated in the spring/fall and correlated in mid-summer). Short time scale (i.e. high resolution) time series of the vertical distribution of primary production variables are presented to demonstrate the evolution of vertical structure in these variables. The regular chlorophyll maximum feature in these time series is suggested to be predominantly the result of a behavioral response to high irradiance and/or low ambient nutrients, though depth dependent growth is shown to be important on occasion. A numerical model is constructed incorporating the structure and function indicated to be important from the statistical analysis of the prior data set and from the patterns and inter-relationships evident in the high resolution time series. Numerical experiments are carried out evaluating model sensitivity to wind and column stability forcing. The results are interpreted to suggest that surface mixing control of primary production probably does not occur through vertical displacement effects on the near field light regime, but rather is related to phytoplankton nutrition. Non-monotonic responses by the primary production output variables in the model to monotonic changes in wind forcing in a manner that is consist with the seasonal biomass-stability covariance pattern is interpreted as indicating that non-linear coupling in the governing equations could be responsible for this covariance structure.
The UW Virtual Brain Project: An immersive approach to teaching functional neuroanatomy
Creators: name: Schloss, Karen B.
name: Schoenlein, Melissa A.
name: Tredinnick, Ross
name: Smith, Simon
name: Miller, Nathaniel
name: Racey, Chris
name: Castro, Christian
name: Rokers, Bas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Learning functional neuroanatomy requires forming mental representations of 3D structure, but forming such representations from 2D textbook diagrams can be challenging. We address this challenge in the UW Virtual Brain Project by developing 3D narrated diagrams, which are interactive, guided tours through 3D models of perceptual systems. Lessons can be experienced in virtual realty (VR) or on a personal computer monitor (PC). We predicted participants would learn from lessons presented on both VR and PC devices (comparing pre-test/post-test scores), but that VR would be more effective for achieving both content-based learning outcomes (i.e test performance) and experience-based learning outcomes (i.e., reported enjoyment and ease of use). All participants received lessons about the visual system and auditory system, one in VR and one on a PC(order counterbalanced). We assessed content learning using a drawing/labeling task on paper (2D drawing) in Experiment 1 and a Looking Glass autostereoscopic display (3D drawing) in Experiment 2. In both experiments, we found that the UW Virtual Brain Project lessons were effective for teaching functional neuroanatomy, with no difference between devices. However, participants reported VR was more enjoyable and easier to use. We also evaluated the VR lessons in our Classroom Implementation during an undergraduate course on perception. Students reported that the VR lessons helped them make progress on course learning outcomes, especially for learning system pathways. They suggested lessons could be improved byadding more examples and providing more time to explore in VR.
description: To appear in Translational Issues in Psychological Science
Diversity of Decline-Rate-Corrected Type Ia Supernova Rise Times: One Mode or Two?
Creators: name: Strovink, Mark
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: B-band light-curve rise times for eight unusually well-observed nearby Type Ia supernovae (SNe) are fitted by a newly developed template-building algorithm, using light-curve functions that are smooth, flexible, and free of potential bias from externally derived templates and other prior assumptions. From the available literature, photometric BVRI data collected over many months, including the earliest points, are reconciled, combined, and fitted to a unique time of explosion for each SN. On average, after they are corrected for light-curve decline rate, three SNe rise in 18.81 +- 0.36 days, while five SNe rise in 16.64 +- 0.21 days. If all eight SNe are sampled from a single parent population (a hypothesis not favored by statistical tests), the rms intrinsic scatter of the decline-rate-corrected SN rise time is 0.96 +0.52 -0.25 days -- a first measurement of this dispersion. The corresponding global mean rise time is 17.44 +- 0.39 days, where the uncertainty is dominated by intrinsic variance. This value is ~2 days shorter than two published averages that nominally are twice as precise, though also based on small samples. When comparing high-z to low-z SN luminosities for determining cosmological parameters, bias can be introduced by use of a light-curve template with an unrealistic rise time. If the period over which light curves are sampled depends on z in a manner typical of current search and measurement strategies, a two-day discrepancy in template rise time can bias the luminosity comparison by ~0.03 magnitudes.
description: As accepted by The Astrophysical Journal; 15 pages, 6 figures, 2 tables. Explanatory material rearranged and enhanced; Fig. 4 reformatted
Nested entangled states for distributed quantum channels
Creators: name: Di Franco, C.
name: Paternostro, M.
name: Kim, M. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We find a coupling-strength configuration for a linear chain of N spins which gives rise to simultaneous multiple Bell states. We suggest a way such an interesting entanglement pattern can be used in order to distribute maximally entangled channels to remote locations and generate multipartite entanglement with a minimum-control approach. Our proposal thus provides a way to achieve the core resources in distributed information processing. The schemes we describe can be efficiently tested in chains of coupled cavities interacting with three-level atoms.
description: 4 pages, 2 figures, RevTeX4
Sivers Asymmetry for the proton and the neutron
Creators: name: Scopetta, S.
name: Courtoy, A.
name: Fratini, F.
name: Vento, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A formalism is presented to evaluate the Sivers function in constituent quark models. A non-relativistic reduction of the scheme is performed and applied to the Isgur-Karl model. The results obtained are consistent with a sizable Sivers effect and the signs for the u and d flavor contributions turn out to be opposite. The Burkardt Sum Rule is fulfilled to a large extent. After the estimate of the QCD evolution of the results from the momentum scale of the model to the experimental one, a reasonable agreement with the available data is obtained. A calculation of nuclear effects in the extraction of neutron single spin asymmetries in semi-inclusive deep inelastic scattering off 3He is also described. In the kinematics of forth-coming experiments at JLab, it is found that the nuclear effects arising within an Impulse Approximation approach are under control.
description: 8 pages, 3 figures, Invited talk at the "6th International Conference on Hadronic Physics", ICTP, Trieste, Italy, 12-16 May 2008. To appear in AIP Proceedings Series
Orthogonal Time Sequency Multiplexing Modulation: Analysis and Low-Complexity Receiver Design
Creators: name: Thaj, Tharaj
name: Viterbo, Emanuele
name: Hong, Yi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Information Theory (cs.IT)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This paper proposes orthogonal time sequency multiplexing (OTSM), a novel single carrier modulation scheme that places information symbols in the delay-sequency domain followed by a cascade of time-division multiplexing (TDM) and Walsh-Hadamard sequence multiplexing. Thanks to the Walsh Hadamard transform (WHT), the modulation and demodulation do not require complex domain multiplications. For the proposed OTSM, we first derive the input-output relation in the delay-sequency domain and present a low complexity detection method taking advantage of zero-padding. We demonstrate via simulations that OTSM offers high performance gains over orthogonal frequency division multiplexing (OFDM) and similar performance to orthogonal time frequency space (OTFS), but at lower complexity owing to WHT. Then we propose a low complexity time-domain channel estimation method. Finally, we show how to include an outer error control code and a turbo decoder to improve error performance of the coded system.