cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Can random sampling methods be used successfully to sample catches at sea? Implementation of random sampling on commercial fishing vessels in the Federal groundfish fisheries off Alaska
Creators: name: Cahalan, Jennifer
Publisher: name: ASC 2013 - Theme session J
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author. Sampling catches on commercial fishing vessels that are actively engaged in fishing activities is a difficult task. Alaska has an extensive fisheries observer program that deploys observers onto different types of vessels that use a variety of gear types. However, observers working on commercial fishing vessels do not always have the time, storage space, or tools available to sample according to a rigorous sample design. In 2010 observers deployed into the Federal Alaska groundfish fisheries began recording the sample design used for each sampled haul as part of their standard data collections. Observers also recorded instances where they were unable to collect their intended sample as planned. Data from 2010 through 2012 clearly showed that observers are able to implement random sampling methods. The sampling designs used tended to vary by vessel type, gear type, and vessel operations. Observers most often employed a systematic random or simple random sample design to collect samples used to determine the species composition of the catches. However, in difficult sampling situations such as trawl catcher vessels, observers had to resort to opportunistically collecting samples since randomized methods could not be consistently implemented.
Analysis of changes in thermal growing season and their relationships with atmospheric teleconnection patterns for the Yellow River basin in China
Creators: name: Kexin, Zhang
name: Xiaogang, Dong
name: Jiaoting, Peng
name: Zhihua, Su
name: Yanhong, Zhang
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: The thermal growing season (TGS) that strongly correlates with changes in temperature refers to the whole period during which vegetation growth can occur. The daily mean air temperature data of 66meteorological stations located in the Yellow River basin (YRB) from 1960 to 2017 were used to investigate the inter-annual variations in the TGS indices and their relationships with atmospheric teleconnection patterns (ATPs). The thermal growing season start (GSS), thermal growing season end (GSE), and the length of thermal growing season (GSL) were considered. Our results suggested a significant negative trend in GSS, together with a significant positive trend in GSE, leading to a significant extension of GSL by 2.4 day/decade (p<0.01). The spatial patterns in the trends between GSS and GSE were distinct in this study, indicating that the changes in temperature in spring were considerably different from those in autumn. The mutation analysis presented in this study showed that mutation points in GSS, GSE, and GSL overall were observed in 1998, 1996, and 2001, respectively. Furthermore, the TGS indices were influenced by the ATPs discussed in this studyat certain time scales, and the entire research area was affected by multiple climate indices, indicating that other climate indexes always adjusted the influences of one climate index.
Universal time evolution of string order parameter in quantum critical systems with boundary invertible or non-invertible symmetry breaking
Creators: name: Barad, Ruhanshi
name: Tang, Qicheng
name: Zhu, Wei
name: Wen, Xueda
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The global symmetry, either invertible or non-invertible, has been extensively studied in two dimensional conformal field theories in recent years. When the theory is defined on a manifold with open boundaries, however, many interesting conformal boundary conditions will fully or partially break such global symmetry. In this work, we study the effect of symmetry-breaking boundaries or interfaces when the system is out of equilibrium. We show that the boundary or interface symmetry-breaking can be detected by the time evolution of string order parameters, which are constructed from the symmetry operators that implement the symmetry transformations. While the string order parameters are independent of time if the symmetry is preserved over the whole system, they evolve in time in a universal way if the boundary or interface breaks the symmetry. More explicitly, in the presence of boundary or interface symmetry-breaking, the string order parameters decay exponentially in time after a global quantum quench, and decay as a power-law in time after a local quantum quench. We also generalize our study to the case when the string order parameters are defined in a subsystem, which are related to the full counting statistics. It is found there are also universal features in the time evolution of string order parameters in this case. We verify our field theory results by studying the time evolution of these two different types of string order parameters in lattice models.
description: are welcome. 32 pages, many figures; v2: Refs added
Light-time effect detected in fourteen eclipsing binaries
Creators: name: Zasche, P.
name: Uhlar, R.
name: Svoboda, P.
name: Cagas, P.
name: Masek, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The available minima timings of 14 selected eclipsing binaries (V1297 Cas, HD 24105, KU Aur, GU CMa, GH Mon, AZ Vel, DI Lyn, DK Her, GQ Dra, V624 Her, V1134 Her, KIC 6187893, V1928 Aql, V2486 Cyg) were collected and analyzed. Using the automatic telescopes, surveys, and satellite data, we derived more than 2500 times of eclipses, accompanied with our own ground-based observations. These data were used to detect the period variations in these multiple systems. The eclipse timing variations were described using the third-body hypothesis and the light-time effect. Their respective periods were derived as 2.5, 16.2, 27, 20, 64, 5.6, 22, 115, 27, 42, 6.9, 11.2, 4.1, and 8.4 years for these systems, respectively. The predicted minimal mass of the third body was calculated for each of the systems, and we discuss here their prospective detectability. The light curves of HD 24105, GH Mon, DK Her, V1134 Her, KIC 6187893, V1928 Aql, and V2486 Cyg were analyzed using the PHOEBE program, resulting in physical parameters of the components. Significant fractions of the third light were detected during the light-curve analysis, supporting our hypothesis of the triple-star nature of all these systems. The majority of these systems (nine out of 14) were already known as visual doubles. Our study shifts them to possible quadruples, what makes them even more interesting.
description: 10 pages, 3 Tables, 21 figures, published in: 2020A&A...643A.130Z
title: Monitoring artisanal fisheries in the Basque Country: (Skippers involvement and participation in the data collection process).
Creators: name: Mugerza, Estanis
name: Murillas-Maza, Arantza
name: Ruiz, Jon
name: Zarauz, Lucia
name: Arregi, Luis
name: Alzorriz, Nekane
name: Artetxe, Iñaki
Publisher: name: ASC 2013 - Theme session J
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author. Despite the importance of artisanal fisheries, (biological, ecological, and socio-cultural) the information related to it is scarce and imprecise. Due to this lack of knowledge, there are mismatches among available resources, capabilities, application of environmental criteria and the economic viability of the activity. This complicates achieving efficient management for a responsible and sustainable fishery
A double-dot quantum ratchet driven by an independently biased quantum point contact
Creators: name: Khrapai, V. S.
name: Ludwig, S.
name: Kotthaus, J. P.
name: Tranitz, H. P.
name: Wegscheider, W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a double quantum dot (DQD) coupled to a strongly biased quantum point contact (QPC), each embedded in independent electric circuits. For weak interdot tunnelling we observe a finite current flowing through the unbiased Coulomb blockaded DQD in response to a strong bias on the QPC. The direction of the current through the DQD is determined by the relative detuning of the energy levels of the two quantum dots. The results are interpreted in terms of a quantum ratchet phenomenon in a DQD energized by a nearby QPC.
description: revised version
Formal verification of asynchronous data-path circuits
Creators: name: Weih, David T.
Publisher: name: University of British Columbia
Year: 2009

description: Asynchronous designs are typically modelled with non-deterministic next-state relations. When a deterministic model is available, specialised verification techniques can be used to automatically verify relatively large designs. This thesis demonstrates that verification techniques developed for deterministic models can be applied to speed-independent self-timed circuits. We introduce local formulas, and show that the validity of a local formula is independent of the order in which the components of a speed-independent circuit perform their operations. Local formulas provide a natural way to specify the input/output behaviour of a circuit and are well-suited for specifying data-paths. We demonstrate the practicality of our approach by describing the verification of three designs: a FIFO, an adder, and a vector multiplier chip.
Diagnostic of Spectral Lines in Magnetized Solar Atmosphere: Formation of the H\b{eta} Line in Sunspots
Creators: name: Zhang, Hongqi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Formation of the H$β$ $λ$4861.34 Å line is an important topic related to the diagnosis of the basic configuration of magnetic fields in the solar and stellar chromospheres. Specifically, broadening of the H$β$ $λ$4861.34 Å line occurs due to the magnetic and micro-electric fields in the solar atmosphere. The formation of H$β$ in the model umbral atmosphere is presented based on the assumption of non-local thermodynamic equilibrium. It is found that the model umbral chromosphere is transparent to the Stokes parameters of the H$β$ line, which implies that the observed signals of magnetic fields at sunspot umbrae via the H$β$ line originate from the deep solar atmosphere, where $\lg τ_c\approx-1$ (about 300 km in the photospheric layer for our calculations). This is in contrast to the observed Stokes signals from non-sunspot areas, which are thought to primarily form in the solar chromosphere.
description: 6 pages, 5 figues
Low temperature behaviour and glass line of the symmetrical colloidal electrolyte
Creators: name: Caballero, Jose B.
name: Puertas, Antonio M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report on the low temperature behaviour of the colloidal electrolyte by means of Molecular Dynamics simulations, where the electrostatic interactions were modeled using effective screened interactions. As in previous works, we have found a region of gas-liquid coexistence located in the low $T$- low $ρ$ region. At temperatures much lower than the critical one, the system cannot reach equilibrium, that is, the gas-liquid transition is arrested. Two different mechanisms have been identified to cause arrest: gelation in the lowest $T$ and crowding at intermediate $T$ values, the latter associated with the crossing point between the binodal and the glass line. To test the latter, the dynamics of the colloidal electrolyte near this crossing point has been computed and compared to the universal predictions of the ideal MCT. As in other glass-forming liquids, we found good agreement between this mean field theory and the dynamics of this complex system, although it fails just at the transition. Interestingly, in this region we found that the dynamics of this system is driven mainly by the steric interactions, showing all the typical properties of a repulsive colloidal glass. Finally, the isodiffusivity lines show that in this system with short range attractions, there is no re-entrant glass phenomenon, as opposed to monocomponent systems.
title: Behind the shine: An appraisal of five years of Danish CCTV trials.
Creators: name: Ulrich, Clara
name: Dalskov, Jørgen
name: Egekvist, Josefine
name: Håkansson, Kirsten Birch
name: Olesen, Hans Jakob
name: Storr-Paulsen, Marie
Publisher: name: ASC 2013 - Theme session J
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author. Denmark has been the first nation in Europe to promote the use of Fully Documented Fisheries (FDF) through Remote Electronic Monitoring (REM) and CCTV camera systems, and some pilot schemes for monitoring cod catches have been in place since 2008. In theory, such a scheme could supplement and even potentially replace expensive control and monitoring programs; and, when associated to a Catch Quota management system, incentivize positive changes in fishing patterns in a results-based management approach. However, in practice, the technical and institutional challenges remain important hurdles to overcome for the system to be beneficial and reliable. In this paper we investigate the added value on catch information gained over the last five years, and discuss the future of REM as a monitoring program in the context of the future discards ban.
Simulating the gravitational field of a non-rotating neutron star on GPUs:
Creators: name: Tantilian, Gkratsia Καρέν (Γκράτσια Ταντιλιάν)
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Βαρύτητα
Αστέρας Νετρονίων
Παράλληλος Προγραμματισμός
Gravity
Neutron Star
CUDA
GPU
Parallel Computing

description: Το βασικό θέμα της εργασίας είναι το πως μπορούμε να προσομοιώσουμε το βαρυτικό πεδίο ενός αστέρα νετρονίων σε GPU. Αρχικός σκοπός είναι η επίλυση των εξισώσεων του Αϊνστάιν για έναν μη περιστρεφόμενο αστέρα νετρονίων. Υιοθετούμε τον φορμαλισμό ADM 3+1 και χρησιμοποιούμε την προσέγγιση της χωρικά σύμμορφης επιπεδότητας (conformal flatness approximation – CFC), στην οποία έχουμε να επιλύσουμε μόνο ελλειπτικές εξισώσεις. Για τον υπολογισμό των εσωτερικών παραμέτρων του αστέρα χρησιμοποιούμε τις εξισώσεις ισορροπίας. Για ταχύτερη εκτέλεση, επιλέγουμε τον παράλληλο προγραμματισμό σε GPU, στη γλώσσα CUDA, ενώ χρησιμοποιούμε την αριθμητική τεχνική multigrid. Μέσω μιας βελτιστοποίησης των υπολογισμών πετύχαμε σημαντικά καλύτερους χρόνους εκτέλεσης του προγράμματος σε CUDA, σε σύγκριση με μια αρχική υλοποίηση.
description: The main subject of this project is how can we simulate the gravitational field of a neutron star on GPUs. First we need to solve the Einstein's equations for a non-rotating neutron star. We adopt the ADM 3+1 formalism and we use the spatial conformal flatness approximation – CFC, where we have to solve only elliptic equations. To calculate the internal parameters of the star, we use the equations of equilibrium. For faster results, we choose parallel programming on GPUs, in CUDA programming language, while we use a multigrid numerical technique. After some optimizations we achieved important speed ups in CUDA, compared to an initial implementation.
Σουννιτικό και Σιιτικό Ισλάμ. Ιστορία και Διδασκαλία:
Creators: name: Ρούσου, Ανδριάνα Θωμά
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Σουννίτες
Σιίτες
Ισλάμ
Sunnis
Shia
Islam

description: Στην παρούσα εργασία περιγράφονται οι δύο κλάδοι του Ισλάμ , το Σουννιτικό και το Σιιτικό. Το πρώτο κεφάλαιο αναφέρεται στον ιδρυτή της μουσουλμανικής θρησκείας , Μωάμεθ και στο έργο του , καθώς επίσης στο Κοράνιο , το Ιερό βιβλίο των μουσουλμάνων και στη σημασία του. Το δεύτερο κεφάλαιο κάνει λόγο για τους Σουννίτες , την ιστορική τους εξέλιξη και τα βασικά στοιχεία της διδασκαλίας τους. Τέλος, το τρίτο κεφάλαιο επικεντρώνεται στους Σιίτες και την ιστορική τους διαδρομή, καθώς και τις θρησκευτικές τους αντιλήψεις.
description: In this present research are described the two branches of Islam , the Sunni and the Shia. The first chapter refers to the founder of muslim religion , Muhammed and his work , and also to the Koran , the Holy book of muslims and its importance. The second chapter refers to the Sunnis, their historical background and the basic elements of their teaching. Finally , the third chapter is focused on the Shia and their historical way , and moreover on their religious perceptions.
Magnetic anisotropy in van-der-Waals ferromagnet VI3
Creators: name: Koriki, A.
name: Misek, M.
name: Pospisil, J.
name: Kratochvilova, M.
name: Carva, K.
name: Prokleska, J.
name: Dolezal, P.
name: Kastil, J.
name: Son, S.
name: Park, J-G.
name: Sechovsky, V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A comprehensive study of magnetocrystalline anisotropy of a layered van-der-Waals ferromagnet VI3 was performed. We measured angular dependences of the torque and magnetization with respect to the direction of the applied magnetic field within the "ac" plane perpendicular to and within the basal ab plane, respectively. A two-fold butterfly-like signal was detected by magnetization in the perpendicular "ac" plane. This signal symmetry remains conserved throughout all magnetic regimes as well as through the known structural transition down to the lowest temperatures. The maximum of the magnetization signal and the resulting magnetization easy axis is significantly tilted from the principal c axis by ~40°. The close relation of the magnetocrystalline anisotropy to the crystal structure was documented. In contrast, a two-fold-like angular signal was detected in the paramagnetic region within the ab plane in the monoclinic phase, which transforms into a six-fold-like signal below the Curie temperature TC. With further cooling, another six-fold-like signal with an angular shift of ~30° grows approaching TFM. Below TFM, in the triclinic phase, the original six-fold-like signal vanishes, being replaced by a secondary six-fold-like signal with an angular shift of ~30°.
description: 14 pages, 10 figures
Πολυτεχνείο '73: πέρα από τη φοιτητική εξέγερση
Creators: name: Χριστοφή, Μαρία Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Πολυτεχνείο
Δημόσια ιστορία
Εργατική συνέλευση
Polytechnic uprising
Public history
Workers' assembly

description: Η εργασία πραγματεύεται την εξέγερση του Πολυτεχνείου ’73 μέσα από τη σκοπιά της Δημόσιας Ιστορίας. Μελετώντας βασικές θεωρητικές αρχές της Ιστορικής Επιστήμης, όπως η αντικειμενικότητα και ο υποκειμενισμός, τα πραγματικά και τα επινοημένα γεγονότα, ο ρόλος της μνήμης στη δημόσια ιστορία, η δημόσια ιστορία ως αποτέλεσμα κοινωνικής κατασκευής, βλέπουμε ότι η πλειοψηφία αυτών που ξέρουμε για το Πολυτεχνείο σήμερα είναι προϊόν μίας, μεταπολιτευτικής κυρίως, κατασκευής. Αφού παραδεχθούμε ότι υπάρχει μία μυθολογία γύρω από την εξέγερση του Πολυτεχνείου, προσπαθούμε να ανιχνεύσουμε τα πραγματικά γεγονότα της εξέγερσης, δίνοντας έμφαση στις άγνωστες ή στις παραποιημένες πτυχές τους: την εργατική και μαθητική συνέλευση, τη γενική απεργία, τον ρόλο των δύο κυρίαρχων παρατάξεων και των υπόλοιπων πολιτικών δυνάμεων. Στη συνέχεια επιχειρείται μία αναδρομή σε εκείνες τις επετείους του Πολυτεχνείου που συνέβαλαν σε κάποιο βαθμό στην αλλοίωση των γεγονότων, οδηγώντας τελικά στην εικόνα που έχουμε σήμερα για την εξέγερση.
description: This project is about the uprising of the “Polytechnic University”, in 1973, studied through the Public History view. By studying some basic theoretical principles of the Science of History, like objectivity and subjectivity, the real or the invented facts, the role of memory in public history, public history as a result of social construction, we can see that the majority of what is known for this uprising today is a product of construction created basically after the fall of the dictatorship in Greece. As soon as we admit that there is a mythology surrounding this uprising, we try to track the real events of the uprising, giving emphasis to its unknown or changed aspects: the workers’ and pupils’ assemblies, the general strike, the role of the two domain students’ political groups and the rest of the political forces. Then a recursion is attempted through all those anniversaries of the uprising that have contributed to one degree or another to the distortion of the events, that have eventually lead to the picture of the uprising that we have today.
title: Quantifying and describing river herring bycatch in the U.S. northwest-Atlantic herring and mackerel trawl fisheries
Creators: name: Bethoney, N.David
name: Schondelmeier, Bradley
name: Stokesbury, Kevin
name: Hoffman, William
name: Armstrong, Michael
Publisher: name: ASC 2013 - Theme session J
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author. In the U.S. northwest Atlantic, the incidental catch of river herring (Alosa pseudoharengus, A.aestivalis) by mid-water trawl vessels targeting Atlantic herring (Clupea harengus) and mackerel (Scomber scombrus) has become a concern for their conservation. Information about this bycatch is limited to length frequencies and weight estimates across broad areas. In response, managers have proposed increasing atsea observer coverage to 100%, but this sampling rate may be fiscally impossible. By combining port-side and at-sea observations, we show that information about river herring bycatch can be improved without substantially increasing at-sea observer levels. We generated length distributions, maturity estimates, weights, and number of river herring caught for four near shore areas. We showed intra- and interspecies differences for these attributes between and within the areas of focus. These characteristics were also used to evaluate the potential impact of bycatch each area. Weight estimates for 2011 and 2012, generated through a ratio estimator, had coefficients of variation (CVs) mostly close to or below 0.3, with none exceeding 0.6. Based on these results and the cost of 100% at-sea observer coverage, improvements to and coordination between port-side and at-sea sampling programs may be the best scheme to improve information on river herring bycatch.
Honey, HoneyBee Venum Melittin and SARS-Cov-2
Creators: name: Besharati, Mohammad Reza
name: Izadi, Mohammad
name: Alireza Talebpour
Publisher: name: Zenodo
Year: 2021
Subjects: Honey, Melittin, Docking Study, SARS-Cov-2, Honey Consumption

description: Honey, HoneyBee Venum Melittin and SARS-Cov-2
Realistic simulation of NGS data based on FFPE Samples
Creators: name: Lanying Wei
name: Sandmann, Sarah
name: Thomas, Christian
name: Hasselblatt, Martin
name: Dugas, Martin
Publisher: name: F1000 Research Limited
Year: 2019

description: We present here a novel next-generation sequencing (NGS) read simulator designed specifically for formalin fixed, paraffin embedded (FFPE) samples. FFPE is a form of preservation and preparation for biopsy specimens, which can lead to numerous false positives in variant detection. Our simulator simulates the artifact chimeric reads observed in FFPE samples, which is one important source of false positives in variant detection of FFPE samples. To our knowledge, this is the first specific NGS simulator for FFPE samples, which may help to optimize the variant calling process in FFPE samples.
Imprint of charge and oxygen orders on Dy ions in DyBa$_2$Cu$_3$O$_{6+x}$ thin films probed by resonant x-ray scattering
Creators: name: Betto, Davide
name: Bluschke, Martin
name: Putzky, Daniel
name: Schierle, Enrico
name: Amorese, Andrea
name: Fürsich, Katrin
name: Blanco-Canosa, Santiago
name: Christiani, Georg
name: Logvenov, Gennady
name: Keimer, Bernhard
name: Minola, Matteo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We used resonant elastic x-ray scattering at the Cu $L_3$ and Dy $M_5$ edges to investigate charge order in thin films of underdoped DyBa$_2$Cu$_3$O$_{6+x}$ (DyBCO) epitaxially grown on NdGaO$_3$ (110) substrates. The films show an orthorhombic crystal structure with short-range ortho-II oxygen order in the charge-reservoir layers. At the Dy $M_5$ edge we observe diffraction peaks with the same planar wavevectors as those of the two-dimensional charge density wave in the CuO$_2$ planes and of the ortho-II oxygen order, indicating the formation of induced ordered states on the rare-earth sublattice. The intensity of the resonant diffraction peaks exhibits a non-monotonic dependence on an external magnetic field. Model calculations on the modulation of the crystalline electric field at the Dy sites by charge and oxygen order capture the salient features of the magnetic field, temperature, and photon energy dependence of the scattering intensity.
description: 9 pages, 10 figures
Staatenlose Gesellschaft? Die anarchistische Herausforderung und die Grenzen staatlicher Autorität
Creators: name: Hubacher, Manuel
Publisher: name: Nomos
Year: 2024
Subjects: subject: politische Pflicht
subject: philosophischer Anarchismus
subject: staatliche Autorität
subject: 320 - Politik
subject: 300 - Sozialwissenschaften

description: Staatliches Handeln bringt Vorteile, weshalb die zentrale Rolle von Staaten in der der politischen Theorie nicht überrascht. Staaten als gegeben anzunehmen, schränkt aber Kritik am Status quo und die Beschäftigung mit Alternativen ein. Die anarchistische Ablehnung von Herrschaft und die Visionen einer herrschaftsfreien Gesellschaft kann daher ein produktiver Ausgangspunkt für eine kritische Reflexion von Staatlichkeit sein. Auf die philosophischen Anarchisten Robert Paul Wolff und A. John Simmons sowie auf Joseph Raz zurückgreifend formuliere ich eine überzeugende anarchistische Herausforderung. Diese zeigt: Lediglich jenes staatliche Handeln können wir legitimieren, das uns ein selbstbestimmtes und emanzipiertes Leben ermöglicht.
title: Quantitative assessments of the value of coastal habitats 1 for exploited marine fish and invertebrates: a review
Creators: name: Vasconcelos, Rita P.
name: Le Pape, Olivier
name: Eggleston, Dave B.
name: Tulp, Ingrid
Publisher: name: ASC 2013 - Theme session K
Year: 2024
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Despite the importance of coastal habitats for fish and invertebrate species and their vulnerability to human impacts, there is ambiguous evidence on their role in driving of population dynamics. To begin to assess this role, we surveyed the literature for examples of quantitative assessments of habitat-specific demographic rates (immigration, emigration, growth, mortality) and density
A shadow of the repulsive Rutherford scattering and Hamilton vector
Creators: name: Shatilov, D. A.
name: Silagadze, Z. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The fact that repulsive Rutherford scattering casts a paraboloidal shadow is rarely exploited in introductory mechanics textbooks. Another rarely used construction in such textbooks is the Hamilton vector, a cousin of the more famous Laplace-Runge-Lenz vector. We will show how the latter (Hamilton's vector) can be used to explain and clarify the former (paraboloidal shadow).
description: 8 pages, 2 figures, to be published in European Journal of Physics
title: Habitat availability limits stock sizes of coastal predatory fish
Creators: name: Bergström, Ulf
name: Sundblad, Göran
name: Sandström, Alfred
name: Eklöv, Peter
Publisher: name: ASC 2013 - Theme session K
Year: 2024
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. The process of integrating fisheries and habitat management may be stimulated by scientifically demonstrating the benefits of healthy habitats for fisheries and of strong fish stocks for marine conservation. In coastal areas of the Baltic Sea, the predatory fishes perch (Perca fluviatilis) and pikeperch (Sander lucioperca) dominate. Besides being central to commercial and recreational fishery, they have been shown to play a central role in ecosystem functioning. As for many other fishes, little is known about the habitat dependence of these species. To quantify the contribution from coastal nursery habitats to population sizes, we related adult density to the amount of nursery habitat available for twelve populations of perch and pikeperch in the northern Baltic Sea. Nursery habitats were mapped using an ensemble of three conceptually different statistical techniques in combination with GIS, while adult densities were estimated from gillnet surveys. For both species habitat availability had a strong positive effect, explaining almost half of the variation in population sizes. Responses were non-linear, indicating that habitat protection has largest effects where there is little available habitat. Using habitat maps, we also show that the current level of protection of these habitats is poor and that the rate of habitat loss due to shoreline exploitation is high. Our results stress the importance of going from single-sector management to ecosystem-based management.
Effect of Caesalpinia sappan L. extract and Silver ions on inhibition mastitis-causing bacteria pathogens in dairy cows
Creators: name: Phacharaporn Tadee
Publisher: name: Faculty of Agriculture
Year: 2024
Subjects: Caesalpinia sappan L.
Silver ions
mastitis-causing bacteria pathogens
dairy cows

description: Khon Kaen Agriculture Journal, 52, 6, 1063-1073
title: Modelling the distribution of the Great scallop Pecten maximus in the English Channel: linking physical and biological processes to define scallop habitat.
Creators: name: Cugier, Philippe
name: Legoff, Clément
name: Lavaud, Romain
name: Jean, Frédéric
name: Flye‐Sainte‐Marie, Jonathan
name: Foucher, Eric
name: Fifas, Spyros
Publisher: name: ASC 2013 - Theme session K
Year: 2024
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. The great scallop Pecten maximus is currently the most important species in landings (as well in tons as in value) for the French inshore fleet of the English Channel. A modelling approach has been proposed in order to better understand the determinism of the distribution of the great scallop, integrating both physical and trophic constraints. Thus a 3D bio‐hydrodynamical model (ECOMARS3D developed at Ifremer) providing environmental conditions has been coupled to a population dynamics model and an individual physiological model of scallop. Both these approaches contribute to the understanding of the biogeographical distribution and especially enlighten the respective role of biological or physical factors in defining P. maximus habitat in the English Channel.
Effect of dietary protein reduction on growth performance, carcass characteristics, meat quality, chemical composition, and blood uric acid in Korat chickens
Creators: name: Sutisa Khempaka
Publisher: name: Faculty of Agriculture
Year: 2024
Subjects: Korat chicken
low crude protein
growth performance
meat quality
blood uric acids

description: Khon Kaen Agriculture Journal, 52, 6, 1074-1087
Optoelectronic Analysis of Spectrally Selective Nanophotonic Metafilm Cell for Thermophotovoltaic Energy Conversion
Creators: name: Ni, Qing
name: Sabbaghi, Payam
name: Wang, Liping
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This work theoretically explores a spectrally selective TPV cell based on an asymmetric Fabry-Perot resonance cavity structure with sub-100-nm GaSb layer. The simulated spectral property of the ultrathin nanophotonic cell structure exhibits a high absorption peak above the bandgap due to the interference effect with electromagnetic field enhanced inside the GaSb layer between top and bottom silver electrodes, while the sub-bandgap absorption is as low as a few percent because of high reflectivity of the metal. An absorption enhancement nearly 20 times at particular frequency above bandgap is achieved within the sub-100-nm GaSb layer with the nanophotonic cell structure compared to the free-standing one. Besides, a thin layer of MoOx is incorporated into the metafilm cell structure as a hole transport layer to consider the charge collection in practice. With rigorous optoelectronic analysis by considering both radiative and nonradiative recombinations (Shockley-Reed-Hall and Auger), the nanophotonic cell is predicted to achieve a TPV efficiency of 22.8% and output power of 0.62 W/cm2 with a black emitter at 1500 K due to spectrally enhanced in-band absorption and low sub-bandgap absorption. With an ideal selective emitter which is hard to achieve in practice along with thermal stability concerns, the efficiency can be further improved to 28% by eliminating sub-bandgap photons. The proposed spectrally selective nanophotonic metafilm cell could be a viable route to achieve high-efficiency and low-cost TPV energy conversion.
Seroepidemiologic study to detect antibody-mediated immunity against SARS-CoV-2 among residents and healthcare workers in the city of Plovdiv, Bulgaria, weeks 21-24, 2020
Creators: name: Stoitsova, Savina
name: Senderov, Viktor
name: Dimcheva, Siyka
name: Rangelova, Vanya
name: Raycheva, Ralitsa
name: Hristamyan, Meri
name: Kevorkian, Ani
name: Stoilova, Jordanka
name: Atanasova, Maria
name: Petrova, Atanaska
name: Murdzheva, Mariana
name: Kantardjiev, Todor
name: Kunchev, Angel
Publisher: name: Zenodo
Year: 2020
Subjects: COVID-19
seroepidemiologic studies
household survey
healthcare workers
immunoglobulin A
Immunoglobulin G
population
health personnel
surveilance

description: Anti-SARS-CoV-2 seroprevalence estimates complement routine surveillance data, and help assess relative population susceptibility. This study measured anti-SARS-CoV-2 seroprevalence among adult residents and high-risk healthcare workers (HCW) in Plovdiv city, Bulgaria. It started ten weeks after the first case was detected in Plovdiv, and took place during weeks 21-24 of 2020.
Dealing with Concept Drift and Multiple Class Imbalance in Multi-label Stream Classification:
Creators: name: Ξιούφης, Ελευθέριος-Σπυρομήτρος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Κατηγοριοποίηση
Ροές Δεδομένων
Μηχανική Μάθηση
Classification
Data Streams
Machine Learning

description: Data streams containing objects that are (or can be) associated with more than one label at the same time are ubiquitous. In spite of its important applications, classification of streaming multi-label data is largely unexplored. Existing approaches try to tackle the problem by transferring traditional single-label stream classification practices to the multi-label domain. Nevertheless, they fail to consider some of the unique properties of the problem such as within and between class imbalance and multiple concept drift. To deal with these challenges, this thesis proposes a novel multi-label stream classification approach that employs two windows for each label, one for positive and one for negative examples. Instance-sharing is exploited for space efficiency, while a time-efficient instantiation based on the k-Nearest Neighbor algorithm is also proposed. Finally, a batch-incremental thresholding technique is proposed to further deal with the class imbalance problem. Results of an empirical comparison against two other methods on three real world datasets are in favor of the proposed approach.
description: Οι ροές δεδομένων που αποτελούνται από αντικείμενα τα οποία συνδέονται με παραπάνω από μία ετικέτες είναι ευρέως διαδεδομένες. Παρά τις σημαντικές εφαρμογές της, η κατηγοριοποίηση δεδομένων πολλαπλών ετικετών που έχουν χαρακτηριστικά ροής δεδομένων είναι σε μεγάλο βαθμό αδιερεύνητη. Οι υπάρχουσες προσεγγίσεις προσπαθούν να αντιμετωπίσουν το πρόβλημα μεταφέροντας παραδοσιακές πρακτικές κατηγοριοποίησης ροών δεδομένων με μία ετικέτα στο πεδίο των πολλαπλών ετικετών. Ωστόσο, δεν καταφέρνουν να λάβουν υπόψη κάποιες από τις ιδιαιτερότητες του προβλήματος όπως η ανισορροπία τάξης και η πολλαπλή εννοιολογική απόκλιση. Για να αντιμετωπιστούν αυτές οι προκλήσεις, στη διπλωματική αυτή εργασία προτείνεται μία νέα προσέγγιση για την κατηγοριοποίηση ροών δεδομένων πολλαπλών ετικετών η οποία χρησιμοποιεί δύο παράθυρα για κάθε ετικέτα, ένα για τα θετικά και ένα για τα αρνητικά παραδείγματα. Επιπλέον, χρησιμοποιείται διαμοιρασμός παραδειγμάτων για τη βελτίωση της πολυπλοκότητας σε χώρο, ενώ προτείνεται μία αποδοτική σε χρόνο υλοποίηση του αλγορίθμου k-Πλησιέστερων Γειτόνων. Τέλος, παρουσιάζεται μία επαυξητική τεχνική ορισμού κατωφλίου για την περαιτέρω αντιμετώπιση του προβλήματος της ανισορροπίας τάξης. Τα αποτελέσματα μίας πειραματικής σύγκρισης με δύο άλλες μεθόδους σε τρία πραγματικά σύνολα δεδομένων τάσσονται υπέρ της προτεινόμενης προσέγγισης.
An analysis of multi-level filtering for high dimensional image data
Creators: name: Tam, Dominic Pok Man
Publisher: name: University of British Columbia
Year: 2009

description: Image database systems are very useful in many applications. To design an effective image database system, high dimensional image feature vectors have to be extracted from the images automatically. Each comparison between them tends to be expensive, so sequential comparisons are usually impractical. Moreover, the. traditional multi-dimensional indexing structures are incapable of handling these high-dimensional vectors efficiently. Thus, it has been proposed to abstract lower dimensional k-D vector from the original N-D feature vector, where k <C N. 2-level filtering is then used so that the k-D vector can fit in the indexing structure for coarse filtering and much fewer comparisons are needed between N-D vectors for the fine filtering stage. Unfortunately, both stages cannot be efficient at the same time. A major contribution of this thesis is to propose the idea of multi-level filtering by adding additional intermediate levels so that both the coarsest and finest filtering stages can be very efficient. Based on the cost models developed, the trends of 2-level and multi-level filterings are analysed and compared. The experimental evaluations further confirm that the 3-level filtering usually requires less CPU and I/O time than 2-level does. When compared with the previous approach of 2-level filtering, 3-levels can save from 15% to over 400% of time needed. Another contribution is to develop the optimizers which can find the (near) optimal configuration of 2-level and 3-level filterings for any image dataset. Experimental results show that in about 32 seconds, the developed optimizer can find a configuration whose total run-time per query exceeds that of the real optimal configuration by less than 2.5%.
Discovery of an Extraordinarily Massive Cluster of Red Supergiants
Creators: name: Figer, Donald F.
name: MacKenty, John
name: Robberto, Massimo
name: Smith, Kester
name: Najarro, Francisco
name: Kudritzki, Rolf P.
name: Herrero, Artemio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of an extraordinarily massive young cluster of stars in the Galaxy, having an inferred total initial cluster mass comparable to the most massive young clusters in the Galaxy. Using {\it IRMOS}, {\it 2MASS}, and {\it Spitzer} observations, we conclude that there are 14 red supergiants in the cluster, compared with five, in what was previously thought to be the richest Galactic cluster of such stars. We infer spectral types from near-infrared spectra that reveal deep CO bandhead absorption that can only be fit by red supergiants. We identify a gap of $Δ${\it K}$_s$$\sim$4 magnitudes between the stars and the bulk of the other stars in the region that can only be fit by models if the brightest stars in the cluster are red supergiants. We estimate a distance of 5.8~\kpc to the cluster by associating an OH maser with the envelope of one of the stars. We also identify a ``yellow'' supergiant of G6~I type in the cluster. Assuming a Salpeter IMF, we infer an initial cluster mass of 20,000 to 40,000~\Msun for cluster ages of 7-12~\Myr. Continuing with these assumptions, we find 80% of the intial mass and 99% of the number of stars remain at the present time. We associate the cluster with an x-ray source (detected by {\it ASCA} and {\it Einstein}), a recently discovered very high energy $γ$-ray source (detected by {\it INTEGRAL} and {\it HESS}), and several non-thermal radio sources, finding that these objects are likely related to recent supernovae in the cluster. In particular, we claim that the cluster has produced at least one recent supernova remnant with properties similar to the Crab nebula. It is not unlikely to find such a source in this cluster, given our estimated supernova rate of one per 40,000 to 80,000~{\it yr}.
description: ApJ, accepted
Dynamic properties of quantum spin chains: Simple route to complex behavior
Creators: name: Verkholyak, Taras
name: Derzhko, Oleg
name: Krokhmalskii, Taras
name: Stolze, Joachim
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We examine dynamic structure factors of spin-1/2 chains with nearest-neighbor interactions of XX and Dzyaloshinskii-Moriya type, and with periodic and random changes in the sign of these interactions. This special kind of inhomogeneity can be eliminated from the Hamiltonian by suitable transformation of the spin variables. As a result, the dynamic structure factors of periodic or random chains can be computed from those of the uniform chains. Using the exact analytical and precise numerical results available for the uniform systems we illustrate the effects of regular alternation or random disorder on dynamic structure factors of quantum spin chains.
Evaluation of the potential of spent coffee ground extracts as an alternative to antibiotic growth promoter in broiler chickens
Creators: name: Wanaporn Tapingkae
Publisher: name: Faculty of Agriculture
Year: 2024
Subjects: spent coffee ground extract
antibiotic substitute
broiler chicken
intestinal morphology

description: Khon Kaen Agriculture Journal, 52, 6, 1103-1117
Δυναμική Ανάλυση Πεζογέφυρας Τεμπών με Μετρήσεις Πεδίου
Creators: name: Λαυδάς, Αλέξανδρος Ευθυμίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Πεζογέφυρα
Μετρήσεις πεδίου
Κατακόρυφη επιτάχυνση
Footbridge
Field Measurements
Vertical acceleration

description: Με αυτήν την εργασία τοποθετείται για πρώτη φορά στο μικροσκόπιο της ακαδημαϊκής έρευνας η δυναμική συμπεριφορά της πεζογέφυρας της Αγίας Παρασκευής Τεμπών. Πρόκειται για κατασκευή του 1960 που υποβλήθηκε σε εκτεταμένες εργασίες ενίσχυσης το 2003. Παρ’ όλα αυτά , εξακολουθεί να είναι «διάσημη» για τις ταλαντώσεις της ακόμη και όταν το φορτίο είναι μόνο ένας άνθρωπος που περπατάει.Η δυναμική συμπεριφορά μελετήθηκε με τη βοήθεια μίας σειράς επί τόπου μετρήσεων της κατακόρυφης επιτάχυνσης του μεσαίου ανοίγματος. Χρησιμοποιήθηκε ένα σύστημα καταγραφής επιτάχυνσης αποτελούμενο από δύο αισθητήρες που τοποθετήθηκαν σε πέντε διαφορετικές θέσεις. Στη συνέχεια έγινε ανάλυση όλων των καταγραφών στο πρόγραμμα SeismoSignal και υπολογίστηκαν τα επιταχυνσιογραφήματα, τα φάσματα Fourier και οι συναρτήσεις πυκνότητας φασματικής ισχύος. Ακολούθησε μία δεύτερη ανάλυση των μετρήσεων , αυτή τη φορά με το πρόγραμμα ARTeMIS, με σκοπό τον υπολογισμό των ιδιομορφών και των ιδιοπεριόδων του καταστρώματος συνολικά. Παράλληλα, διεξήχθη μία δεύτερη διπλωματική εργασία , στην οποία προσομοιώθηκε η πεζογέφυρα στο πρόγραμμα SAP. Η εργασία ολοκληρώνεται με την σύγκριση των αποτελεσμάτων των μετρήσεων στο πεδίο με αυτά της προσομοίωσης από όπου προκύπτουν ενδιαφέροντα συμπεράσματα.
description: This thesis examines for the first time the dynamic behavior of the Agias Paraskevis Tempon footbridge which was constructed in 1960 and was reinforced in 2003 but it is still “famous” for its intense vibration which happens even if only one pedestrian is walking freely.The dynamic behavior was examined by a series of experiments which recorded the vertical acceleration of the deck’s middle span. The measurement system that was used had two acceleration transducers which were placed in 5 different locations. Then, all recordings were analyzed by SeismoSignal software which calculated the accelerograms, Fourier spectra and Power spectral density functions of each one. A second analysis followed, this time by ARTeMIS software, which calculated deck’s mode shapes and natural frequencies. Simultaneously, a second thesis modeled the footbridge with SAP software. Finally, the measurement results were compared with the ones from the model. The conclusions are very interesting.
title: Marine habitats under climate change – impacts on coastal benthos and fish
Creators: name: Snickars, Martin
name: Weigel, Benjamin
name: Bonsdorf, Erik
Publisher: name: ASC 2013 - Theme session K
Year: 2024
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Coastal benthic habitats are productive and central for the benthos-fish link as a majority of fishes feed on benthos in these habitats during at least part of their life-cycle. Environmental change, i.e. combined eutrophication and climate effects, may alter this link, as many habitats are sensitive to these changes. In this study we examplify how fish abundance and benthos biomass change over time, and how the link in photic and aphotic habitats may be affected by climate change and eutrophication. We analyzed the response of benthos and benthic feeding (BF) fishes to temperature and Secchi depth over time, and across depths. During the 1980s, BF increased in shallow water (6 m), the temperature response was positive, suggesting a spatiotemporal shift in the response of BF, following a habitat change to cooler, yet warming, aphotic habitats. However, here the benthos biomass declined during the 2000s indicating potential food shortage that may be amplified with future environmental change. Whilst models predict increasing pelagic primary production decreasing photic depths and oxygen levels, trophic links between different habitats may be affected.
Yamada Polynomial and Khovanov Cohomology
Creators: name: Vershinin, V.
name: Vesnin, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 57M27, 05C15

description: For any graph G we define bigraded cohomology groups whose graded Euler characteristic is a multiple of the Yamada polynomial of G.
description: 12 pages