cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hyperspectral Classification Based on Lightweight 3-D-CNN With Transfer Learning
Creators: name: Zhang, Haokui
name: Li, Ying
name: Jiang, Yenan
name: Wang, Peng
name: Shen, Qiang
name: Shen, Chunhua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Recently, hyperspectral image (HSI) classification approaches based on deep learning (DL) models have been proposed and shown promising performance. However, because of very limited available training samples and massive model parameters, DL methods may suffer from overfitting. In this paper, we propose an end-to-end 3-D lightweight convolutional neural network (CNN) (abbreviated as 3-D-LWNet) for limited samples-based HSI classification. Compared with conventional 3-D-CNN models, the proposed 3-D-LWNet has a deeper network structure, less parameters, and lower computation cost, resulting in better classification performance. To further alleviate the small sample problem, we also propose two transfer learning strategies: 1) cross-sensor strategy, in which we pretrain a 3-D model in the source HSI data sets containing a greater number of labeled samples and then transfer it to the target HSI data sets and 2) cross-modal strategy, in which we pretrain a 3-D model in the 2-D RGB image data sets containing a large number of samples and then transfer it to the target HSI data sets. In contrast to previous approaches, we do not impose restrictions over the source data sets, in which they do not have to be collected by the same sensors as the target data sets. Experiments on three public HSI data sets captured by different sensors demonstrate that our model achieves competitive performance for HSI classification compared to several state-of-the-art methods
description: 16 pages. Accepted to IEEE Trans. Geosci. Remote Sens. Code is available at: https://github.com/hkzhang91/LWNet
title: Predicting future ecosystem scenarios for the Labrador Sea and the Norwegian/Barents seas: some results from the NORCAN study
Creators: name: Drinkwater, Ken
name: Pepin, Pierre
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Results from the Norway-Canada Comparison of Marine Ecosystems (NORCAN) project are used together with previous publications to develop possible future ecosystem scenarios in the Labrador Sea and the Norwegian/Barents seas under climate change. Changes in the physical environments are described based on results from Atmospheric-Ocean Global Circulation Models (AOGCMs) and regional downscaled models. Possible effects of these physical changes on the ecology of the two regions are highlighted. Results indicate strong spatial differences in these responses both within and between the regions depending upon the primary dynamical processes that are in play.
Monte Carlo study of the hull distribution for the q=1 Brauer model
Creators: name: Kager, Wouter
name: Nienhuis, Bernard
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study a special case of the Brauer model in which every path of the model has weight q=1. The model has been studied before as a solvable lattice model and can be viewed as a Lorentz lattice gas. The paths of the model are also called self-avoiding trails. We consider the model in a triangle with boundary conditions such that one of the trails must cross the triangle from a corner to the opposite side. Motivated by similarities between this model, SLE(6) and critical percolation, we investigate the distribution of the hull generated by this trail (the set of points on or surrounded by the trail) up to the hitting time of the side of the triangle opposite the starting point. Our Monte Carlo results are consistent with the hypothesis that for system size tending to infinity, the hull distribution is the same as that of a Brownian motion with perpendicular reflection on the boundary.
description: 21 pages, 9 figures
Multivariate normal approximation using exchangeable pairs
Creators: name: Chatterjee, Sourav
name: Meckes, Elizabeth
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Since the introduction of Stein's method in the early 1970s, much research has been done in extending and strengthening it; however, there does not exist a version of Stein's original method of exchangeable pairs for multivariate normal approximation. The aim of this article is to fill this void. We present three abstract normal approximation theorems using exchangeable pairs in multivariate contexts, one for situations in which the underlying symmetries are discrete, and real and complex versions of a theorem for situations involving continuous symmetry groups. Our main applications are proofs of the approximate normality of rank $k$ projections of Haar measure on the orthogonal and unitary groups, when $k=o(n)$.
description: 25 pages. Substantially revised to simplify proofs. Rates of convergence are improved and a new result on projections of the unitary group has been added
Dipolar Interaction and Sample Shape Effects on the Hysteresis Properties of 2d Array of Magnetic Nanoparticles
Creators: name: Anand, Manish
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the ground state and magnetic hysteresis properties of 2$d$ arrays ($L^{}_x\times L^{}_y$) of dipolar interacting magnetic nanoparticles (MNPs) by performing micromagnetic simulations. Our primary interest is to understand the effect of sample shape, $Θ$- the ratio of the dipolar strength to the anisotropy strength, and the direction of the applied field $\vec{H} = H_{o}\hat{e}^{}_H$ on the ground state and the magnetic hysteresis in an array of MNPs. To study the effect of shape of the sample, we have varied the aspect ratio $A^{}_r=L^{}_y/L^{}_x$ which in turn, is found to induce shape anisotropy in the system. Our main observations are: (a) When the dipolar interaction is strong $(Θ>1)$, the ground state morphology has in-plane ordering of magnetic moments. (b) The ground state morphology has randomly oriented magnetic moments which is robust with respect to system sizes and $A^{}_r$ for weakly interacting MNPs ($Θ<1$). (c) Micromagnetic simulations suggests that the dipolar interaction decreases the coercive field $H^{}_c$. (d) The remanence magnetization $M^{}_r$ is found to be strongly dependent not only on the strength of dipolar interaction but also on the shape of the sample. (e) Due to anisotropic nature of dipolar interaction, a strong effect of shape anisotropy is observed when the field is applied along longer axis of the sample. The dipolar interaction in such a case induces an effective ferromagnetic coupling when the aspect ratio is very large. These results are of vital importance in high-density recording systems, magneto-impedance sensors, etc.
description: 22 Pages, 6 Figures
Expressiveness of Metric modalities for continuous time
Creators: name: Hirshfeld, Yoram
name: Rabinovich, Alexander
Publisher: name: arXiv
Year: 2006
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.3.1; F.4; F.4.1

description: We prove a conjecture by A. Pnueli and strengthen it showing a sequence of "counting modalities" none of which is expressible in the temporal logic generated by the previous modalities, over the real line, or over the positive reals. Moreover, there is no finite temporal logic that can express all of them over the real line, so that no finite metric temporal logic is expressively complete.
title: Stock-dependent forcing in stock and recruitment relationships
Creators: name: Rothschild, Brian J.
name: Jiao, Yue
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Responses of fish populations to climate change involves the linkage between climate-change variables and stock and recruitment. Stock and recruitment theory links recruitment with egg production via a density-dependent mortality function. The density-dependent mortality function is required to explain the relative stability of recruitment (potential variability in egg production is many orders of magnitude greater than variation in recruitment). Yet, despite this requirement, the fit of actual stock and recruitment data to the stock and recruitment theory is generally quite poor. In this paper we focus on the sensitivity of changes in recruitment to changes in egg production and prerecruit mortality given some stock-recruitment relationship. We demonstrate that recruitment variability is more sensitive to changes in egg production when egg production is relatively small. In contrast, recruitment variability is more sensitive to changes in mortality when the stock is relatively large. Generally, egg production is driven by fishing and factors affecting adult fish, and mortality is driven by biological-physical interactions mostly affecting early life-history stages. Thus, variables that change with the magnitude of egg production must be an important unacknowledged source of error in stock and recruitment and in linking climate change with fish population variability.
Equilibrium statistics of an inelastically bouncing ball, subject to gravity and a random force
Creators: name: Burkhardt, Theodore W.
name: Kotsev, Stanislav N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider a particle moving on the half line $x>0$ and subject to a constant force in the $-x$ direction plus a delta-correlated random force. At $x=0$ the particle is reflected inelastically. The velocities just after and before reflection satisfy $v_f=-rv_i$, where $r$ is the coefficient of restitution. This simple model is of interest in connection with studies of driven granular matter in a gravitational field. With an exact analytical approach and simulations we study the steady state distribution function $P(x,v)$.
description: 15 pages + 5 figures
Networks of Recurrent Events, a Theory of Records, and an Application to Finding Causal Signatures in Seismicity
Creators: name: Davidsen, J.
name: Grassberger, P.
name: Paczuski, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Statistics Theory (math.ST)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We propose a method to search for signs of causal structure in spatiotemporal data making minimal a priori assumptions about the underlying dynamics. To this end, we generalize the elementary concept of recurrence for a point process in time to recurrent events in space and time. An event is defined to be a recurrence of any previous event if it is closer to it in space than all the intervening events. As such, each sequence of recurrences for a given event is a record breaking process. This definition provides a strictly data driven technique to search for structure. Defining events to be nodes, and linking each event to its recurrences, generates a network of recurrent events. Significant deviations in properties of that network compared to networks arising from random processes allows one to infer attributes of the causal dynamics that generate observable correlations in the patterns. We derive analytically a number of properties for the network of recurrent events composed by a random process. We extend the theory of records to treat not only the variable where records happen, but also time as continuous. In this way, we construct a fully symmetric theory of records leading to a number of new results. Those analytic results are compared to the properties of a network synthesized from earthquakes in Southern California. Significant disparities from the ensemble of acausal networks that can be plausibly attributed to the causal structure of seismicity are: (1) Invariance of network statistics with the time span of the events considered, (2) Appearance of a fundamental length scale for recurrences, independent of the time span of the catalog, which is consistent with observations of the ``rupture length'', (3) Hierarchy in the distances and times of subsequent recurrences.
description: 19 pages, 13 figures
Charged Pion Production in p+C Collisions at 158 GeV/c Beam Momentum: Discussion
Creators: name: Barr, G.
name: Chvala, O.
name: Fischer, H. G.
name: Kreps, M.
name: Makariev, M.
name: Pattison, C.
name: Rybicki, A.
name: Varga, D.
name: Wenig, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The new data on pion production in p+C interactions from the NA49 experiment at the CERN SPS are used for a detailed study of hadronization in the collision of protons with light nuclei. The comparison to the extensive set of data from p+p collisions obtained with the same detector allows for the separation and extraction of the projectile and target contributions to the pion yield both in longitudinal and in transverse momentum.
description: 44 pages, 37 figures, submitted to European Journal of Physics. Fixing misplaced figures, no change of text
Additional file 1 of Relationship of body mass index with frailty and all-cause mortality among middle-aged and older adults
Creators: name: Jayanama, Kulapong
name: Theou, Olga
name: Godin, Judith
name: Mayo, Andrea
name: Cahill, Leah
name: Rockwood, Kenneth
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Computational Biology
subject: Cardiology

description: Additional file 1: Table S1. [36-item Frailty Index (NHANES)]. Table S2. [57-item Frailty Index (SHARE)]. Table S3. [Interactions between frailty and BMI levels in relation to mortality risk]. Table S4. [Relationship between body mass index and percent body fat, using ordinary least squares regression analysis, and between body mass index and mortality, using cox regression analysis and stratified by frailty levels (N =5309)].
title: Historical samples reveal the population history of Atlantic cod (Gadus morhua) in medieval and early modern Iceland
Creators: name: Ólafsdóttir, Guðbjörg Ásta
name: Westfall, Kristen M.
name: Edvardsson, Ragnar
name: Patterson, William P.
name: Pétursdóttir, Gróa
name: Pálsson, Snæbjörn
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Atlantic cod (Gadus morhua) vertebrae from archaeological sites were used to study the history of the Atlantic cod population in the time period of 1500-1950. Specifically, we examine the genetic structure at the cytochrome B (cytB) and Pantophysin I (PanI) loci, using coalescence modelling to estimate population size and fluctuations. Additionally, we record age and estimate growth from otoliths and finally examine possible niche shifts using stable isotopes (δ15N and δ13C values). We see significant reduction in genetic variation over time and large scale fluctuations in population size. Most importantly our model supports a severe bottleneck coinciding with the onsets of “little ice age” following a population expansion during the previous warmer period. In concordance with previous research we find low effective population size in modern time. There are also large shifts in stable isotope values over time. Importantly, the shifts in isotope values coincide with our population size model and we conclude that both population size changes and shifts in stable isotope values are at least partly linked to known marine temperature fluctuations e.g. the cold periods of the “little ice age”. Our results give new insight into the population history of the Icelandic Atlantic cod stock and provide an important framework for both management and climate research.
Higher-Dimensional Black Holes: Hidden Symmetries and Separation of Variables
Creators: name: Frolov, Valeri P.
name: Kubiznak, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we discuss hidden symmetries in rotating black hole spacetimes. We start with an extended introduction which mainly summarizes results on hidden symmetries in four dimensions and introduces Killing and Killing-Yano tensors, objects responsible for hidden symmetries. We also demonstrate how starting with a principal CKY tensor (that is a closed non-degenerate conformal Killing-Yano 2-form) in 4D flat spacetime one can "generate" 4D Kerr-NUT-(A)dS solution and its hidden symmetries. After this we consider higher-dimensional Kerr-NUT-(A)dS metrics and demonstrate that they possess a principal CKY tensor which allows one to generate the whole tower of Killing-Yano and Killing tensors. These symmetries imply complete integrability of geodesic equations and complete separation of variables for the Hamilton-Jacobi, Klein-Gordon, and Dirac equations in the general Kerr-NUT-(A)dS metrics.
description: 33 pages, no figures, updated references and corrected typos
Thermal spectral functions of strongly coupled N=4 supersymmetric Yang-Mills theory
Creators: name: Kovtun, Pavel
name: Starinets, Andrei
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use the gauge-gravity duality conjecture to compute spectral functions of the stress-energy tensor in finite temperature N=4 supersymmetric Yang-Mills theory in the limit of large Nc and large coupling. The spectral functions exhibit peaks characteristic of hydrodynamic modes at small frequency, and oscillations at intermediate frequency. The non-perturbative spectral functions differ qualitatively from those obtained in perturbation theory. The results may prove useful for lattice studies of transport processes in thermal gauge theories.
description: 8 pages
title: Η ιστορική και κοινωνική εξέλιξη μιας αθηναϊκής συνοικίας: Οδός Πανόρμου
title: The historical and social evolution of an athenian district: Panormou street
Creators: name: Ντανη Αλεξανδρα
Publisher: name: Technical University of Crete
Year: 2024

description: Η εργασία πραγματεύεται τη διερεύνηση του χωρικού αποτυπώματος της αστικής εξέλιξης της Αθήνας στην περιοχή των Αμπελοκήπων με άξονα την οδό Πανόρμου. Αντικείμενο της έρευνας αποτελεί η ανάλυση της αστικής και κοινωνικής δομής της Πανόρμου, ως χαρακτηριστικού δρόμου μιας διαρκώς μεταλλασσόμενης αθηναϊκής γειτονιάς. Η ευρύτερη περιοχή μελέτης ορίζεται μεταξύ των οδών Πανόρμου, Τριφυλίας, Ευσταθίου Λάμψα, και Λ. Αλεξάνδρας και Λ. Κηφισίας.
Η Πανόρμου, η οποία ως χάραξη αποτελεί ένα τεταρτοκύκλιο, μαζί με τη γραμμική Λουίζης Ριανκούρ συνθέτουν ένα σύνολο με πολυδιάστατο αρχιτεκτονικό και πολεοδομικό χαρακτήρα. Ο αρχικός αγροτικός χαρακτήρας της περιοχής βιώνει την πρώτη μεγάλη περίοδο αστικοποίησης με την ανέγερση κτιρίων δημόσιας ωφέλειας. Η δεύτερη περίοδος ξεκινά με την έλευση των προσφύγων μετά την Μικρασιατική Καταστροφή και η τρίτη μεταπολεμικά,  με το κύμα εσωτερικής μετανάστευσης, με αποτέλεσμα τα μονώροφα και διώροφα να δώσουν τη θέση τους στις πολυκατοικίες που κατασκευάστηκαν μεταξύ 1960 – 1980  με τη μέθοδο της αντιπαροχής.
Η κοινωνική ζωή χαρακτηρίζεται από την έντονη αλληλεπίδραση των κατοίκων με τις μεταναστευτικές ομάδες, που κατέκλυσαν την περιοχή τις τελευταίες δεκαετίες, και ενισχύεται από την παρουσία τους στους δημόσιους χώρους, όπως οι πλατείες, που λειτουργούν ως κέντρα κοινωνικής συναναστροφής. Η ιστορική και κοινωνική εξέλιξη της περιοχής συνοψίζει την αστική ιστορία της Αθήνας.

description: The study explores the spatial footprint of the urban development of Athens in the Ampelokipoi area, with a focus on Panormou Street. The research aims to analyze the urban and social structure of Panormou as a characteristic street of a constantly evolving Athenian neighborhood. The broader study area is defined by the streets Panormou, Trifylia, Efstathiou Lampsa, as well as Alexandras and Kifisias Avenues.
Panormou Street, which is laid out as a quarter-circle, together with the linear Louizis Riancour Street, forms a complex with a multidimensional architectural and urban planning character. The area's original rural character experienced its first major period of urbanization with the construction of public utility buildings. The second period began with the arrival of refugees after the Asia Minor Catastrophe, and the third, in the post-war period, was marked by a wave of internal migration, which led to single- and two-story buildings being replaced by apartment blocks constructed between 1960 and 1980 through the method of antiparochi (land-for-flats exchange).
Social life is characterized by the strong interaction between residents and migrant groups, which have settled in the area in recent decades. This interaction is further enhanced by their presence in public spaces, such as squares, which function as hubs of social interaction. The historical and social evolution of the area reflects the broader urban history of Athens.
title: Place-based forecasting: future fisheries under climate change
Creators: name: Rice, Jake
name: Duplisea, Daniel
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. We outline shortcomings of present approaches commonly used for forecasting responses of fish and fisheries to changing ocean conditions. The approaches are overly mechanistic, ignoring many of the important lessons learned from developing an ecosystem approach to fisheries, and are more focused on questions of interest to science than questions important to management and livelihoods. We propose a pathway to an alternative approach which takes a more user-based framework for what needs to be predicted, and tries to build more fully on the lessons learned from placing fisheries in a larger ecosystem context. We do not have a fully worked out proof of concept, but we do have the main components specified and linked, and both the components and linkages are grounded in current practice.
Strain game revisited for complex oxide thin-films: Substrate-film thermal expansion mismatch in PbTiO$_3$
Creators: name: Ritz, Ethan T.
name: Benedek, Nicole A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The sensitivity of materials properties, particularly those of perovskite oxides, to epitaxial strain has been exploited to great advantage to create materials with new or enhanced properties. Although it has certainly been recognized that mismatch in the thermal expansion coefficients of the bulk and substrate material will contribute to the misfit strain, the significance of this contribution for ferroelectric perovskite thin-films has not been systematically explored. We use first-principles density functional theory and the example of ferroelectric PbTiO$_3$ thin-films on various substrates to show that ignoring the thermal expansion of the substrate (that is, assuming that the in-plane lattice parameter of the film remains roughly constant as a function of temperature) results in ferroelectric transition temperatures and structural trends that are completely qualitatively different from calculations in which thermal expansion mismatch is properly taken into account. Our work suggests that the concept of a misfit strain defined as a single number is particularly ill-defined for PbTiO$_3$ and invites further study of the interplay between thermal expansion mismatch and structural and functional properties in other thin-film materials.
Additional file 1 of The role of continuing medical education programs in promoting iranian nurses, competency toward non-communicable diseases, a qualitative content analysis study
Creators: name: Zarei, Maryam
name: Mojarrab, Sadaf
name: Bazrafkan, Leila
name: Shokrpour, Nasrin
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Supplementary Material 1
DIALOGUE AND CHARACTERIZATION IN TALES
Creators: name: Axmadaliyeva, Madina
Publisher: name: Zenodo
Year: 2024

description: This article examines the role of dialogue in Uzbek tales, highlighting its significance in character development and narrative progression. It explores how conversations reflect the rich oral tradition of storytelling, revealing characters' values, beliefs, and social roles. The integration of proverbs and sayings provides moral guidance and cultural wisdom, enriching the narrative and allowing characters to express their identities. Through examples from tales like "Alpomish," the article illustrates how dialogue emphasizes themes of bravery, loyalty, and community, reflecting societal values. The use of regional dialects adds authenticity, grounding characters in their cultural contexts and enhancing audience engagement. Overall, the article underscores the importance of dialogue as a vital narrative device that preserves cultural heritage and fosters connections across generations.
title: Impacts of climate change on the body size of horse mackerel in the North Sea
Creators: name: Harding, Harry
name: Rutterford, Louise
name: Genner, Martin
name: Jennings, Simon
name: Simpson, Stephen
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Clear biogeographic trends persist in the body sizes of individuals in marine communities, with smaller species and individuals within species found in warmer waters. Based on this trend (Bergmann’s Rule), communities undergoing warming at a given location are likely to become more representative of body sizes seen in warmer waters. Using fisheries independent North Sea survey data with established catchability corrections, we investigated the effect of 30 years of warming on average size and species size distributions. We found, as an example, that horse mackerel (Trachurus trachurus) is consistent with Bergmann’s Rule, with larger average sizes seen at higher latitudes. Over 30 years a significant decline in average size has occurred at several latitudes. Using a Eulerian (grid based) approach and dividing the North Sea into 82 1° x 1° cells, 56% of cells displayed size distributions shifting towards populations with higher proportions of smaller individuals. Changing size distribution correlated significantly with warming over the study period. Horse mackerel’s northern range is in the northern North Sea, indicating populations at species range boundaries may be most affected by further warming. This finding warrants further work on a wider number of species. Changing body sizes and shifts in size distributions has implications for ecosystem functioning, trophic level dynamics and the value of fisheries
title: Effects of temperature and food on larval cod survival: a model for behaviour in vertical gradients
Creators: name: Fouzai, Nadia
name: Opdal, Anders F.
name: Jørgensen, Christian
name: Fiksen, Øyvind
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Recruitment success of many living marine resources can vary considerably between years and the early life stages are a key determining factor. Understanding how environmental factors mechanistically influence growth and survival of fish larvae will allow better predictions for recruitment and are also central for predicting expected responses to climate warming. A statedependent optimality model for the behaviour of larval Atlantic cod Gadus morhua was used to analyse trade-offs related to temperature and food abundance and their importance for the growth and survival of larval cod. Temperature-dependent maximum growth rates and vertical gradients of temperature and stochastic prey availability were used as inputs within a mechanistic model that finds optimal state-dependent behaviour for vertical migration and foraging and gives detailed descriptions of predation, physiology, growth and survival of larval cod. Warmer water raises the metabolic demand for food and increased foraging involves an increased risk of predation; the total effect on survival from temperature is not obvious. The model emphasises that food availability is more important for survival and recruitment success than for growth. It also predicts that increasing temperature leads to faster growth and higher survival, but only if there is sufficient availability and quality of food
Increasing the coherence time of Bose-Einstein-condensate interferometers with optical control of dynamics
Creators: name: Stickney, James
name: Anderson, Dana Z.
name: Zozulya, Alex
Publisher: name: arXiv
Year: 2007
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Atom interferometers using Bose-Einstein condensate that is confined in a waveguide and manipulated by optical pulses have been limited by their short coherence times. We present a theoretical model that offers a physically simple explanation for the loss of contrast and propose the method for increasing the fringe contrast by recombining the atoms at a different time. A simple, quantitatively accurate, analytical expression for the optimized recombination time is presented and used to place limits on the physical parameters for which the contrast may be recovered.
description: 34 Pages, 8 Figures
title: Climate change: How does this influence on eutrophication of the lagoons and coastal zone of the Baltic Sea?
Creators: name: Aleksandrov, Sergey
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. The Curonian and Vistula Lagoons are the largest lagoons of the Baltic Sea. In XX century in the Baltic Sea and its coastal areas and lagoons the nutrients loading increased and warming trend is observed. The researches have been carried in lagoons since 1991 and in the coastal zone since 2003. The climate warming in 1990s-2000s causes ongoing eutrophication of the Curonian Lagoon despite of significant reduction of nutrients loading. Eutrophication and Cyanobacteria hyperblooms have the maximum unfavorable effects in the choked Curonian Lagoon and these lead to the deterioration of the water chemical parameters, death of fish in the coastal zone and pollution with toxins, symptoms of exposure are observed at different trophic levels (including zooplankton and fish). Also, unfavorable effects of eutrophication have been observed in restricted Vistula Lagoon but hydrodynamic activity and brackish water prevent hyperblooming of Cyanobacteria. In coastal areas of the Baltic Sea, climate changes have a weak influence on eutrophication. The Curonian Lagoon can be characterized as hypertrophic whereas the Vistula Lagoons and coastal zone as eutrophic areas
Toward a general theory of quantum games
Creators: name: Gutoski, Gus
name: Watrous, John
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We study properties of quantum strategies, which are complete specifications of a given party's actions in any multiple-round interaction involving the exchange of quantum information with one or more other parties. In particular, we focus on a representation of quantum strategies that generalizes the Choi-Jamiołkowski representation of quantum operations. This new representation associates with each strategy a positive semidefinite operator acting only on the tensor product of its input and output spaces. Various facts about such representations are established, and two applications are discussed: the first is a new and conceptually simple proof of Kitaev's lower bound for strong coin-flipping, and the second is a proof of the exact characterization QRG = EXP of the class of problems having quantum refereed games.
description: 23 pages, 12pt font, single-column compilation of STOC 2007 final version
title: Estimation of latitudinal shift of Calanus from 1959 to 2004 using generalized additive models
Creators: name: Chust, Guillem
name: Castellani, Claudia
name: Licandro, Priscilla
name: Ibaibarriaga, Leire
name: Sagarminaga, Yolanda
name: Irigoien, Xabier
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. This study aims to verify the poleward shift of zooplankton species (Calanus finmarchicus, C. glacialis, C. helgolandicus, C. hyperboreus) in the North Atlantic Ocean, and to assess how much of this shift may be due to sea warming, using Generalized Additive Models. To this end, the population gravity centre of observed data from the Continuous Plankton Recorder survey was compared with that predicted from simulation experiments: 1) a model using only climate factors (i.e. niche-based model) to simulate species habitat suitability, 2) a model using temporal and spatial terms to reconstruct the population distribution, and 3) a model using both factors combined, cross-validated. Our findings show that only C. finmarchicus had a consistent poleward shift estimated as 8.1 km per decade in North Atlantic (16.5 km per decade for the Northeast Atlantic) associated with sea warming. This value is lower than that reported by previous studies for zooplankton assemblages in the Northeast Atlantic. C. helgolandicus population has expanded in all directions. C. glacialis and C. hyperboreus, shifted southward, probably responding to cool water penetrating southward in the Labrador Current.
title: Year-to-year variations in water structure of the south Pacific based on the data of 'argo' project Buoys studied in relation to Horse Mackerel (Trachurus Murphy) populations
Creators: name: Evgeniy, Borodin
name: Pavel, Tchernyshkov
name: Sergey, Aleksandrov
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. The traditional area of the Soviet fleet operational in South Pacific (SP) during the period 1978-1991 was the region 25-45*s, 75-180*W Fish distribution patterns in this area provided high effective fishery and total catch of jack mackerel was more then 13.9 million tons. Taking into account that this region may be interested for fishery the authors have attempted to analyze environment here using available data from the Argo project
Γλωσσοεκπαιδευτική μεταρρύθμιση, οι ιδεολογικές αντιδράσεις κατά την πρώτη δεκαετία 1976-1986:
Creators: name: Συμεωνίδης, Βασίλειος Χαραλάμπους
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Γλώσσα
Εκπαίδευση
Μεταρρύθμιση
Language
Education
Reform

description: Σκοπός της εργασίας είναι να μελετήσει από την ιστορική οπτική τις αντιδράσεις που προκάλεσε η γλωσσοεκπαιδευτική μεταρρύθμιση στην Ελλάδα κατά την πρώτη δεκαετία, 1976 – 1986. Αρχικά προσπαθώ να σκιαγραφήσω την πολιτική διάσταση του θέματος μέσα στο ιστορικό πλαίσιό του. Ακολούθως, η εργασία διαρθρώνεται γύρω από τρία γεγονότα. Το 1982 εκδηλώθηκε η πρώτη οργανωμένη εκδήλωση της αντίδρασης στις επιλογές που μεταρρύθμιζαν τη γλωσσική πολιτική• παρακολουθώ τον τρόπο που φτάσαμε σ’ αυτήν. Ακολούθησε η διάχυση της αντιμεταρρυθμιστικής ιδεολογίας που χαρακτηριζόταν από συντηρητικές γλωσσικές απόψεις, κορύφωση της διάχυσης ήταν η ημερίδα του Μίλωνα στις αρχές 1985. Τρίτο κομβικό σημείο είναι η πολιτική έκφραση της αντίδρασης κατά το 1986 – 87. Απ’ ότι φαίνεται, οι φορείς των επιχειρούμενων αλλαγών κράτησαν τη συζήτηση στα επιστημονικά και εκπαιδευτικά όρια της, δεν επιχείρησαν να δώσουν πολιτικές ερμηνείες για τις αντιδράσεις που εκδηλώθηκαν. Αντίθετα, οι φορείς της αντίδρασης, μάλλον είχαν ως αφετηρία την ιδεολογία που συνέδεε στενά την έννοια του έθνους με τη γλώσσα και θεμελίωνε τη συνέχεια του πρώτου στο γλωσσικό παρελθόν και στη γλωσσική συνέχεια.
description: The aim of this dissertation is to study from the historical point of view the reactions caused by the language- educational reform in Greece during the first decade, 1976-1986. Initially, I am trying to outline the political dimensions of this issue within its historical context. Then, my dissertation is structured in relation to three events. In 1982 the first organized manifestation of reaction to the choices reforming the language policy was expressed; I am focusing on the way we were lead to it. The spreading of the anti-reform ideology, which was characterized by conservative views on language, followed, its climax being the symposium of Milonas in the early 1985. The third critical point is the political expression of the reaction in 1986-1987. As it becomes evident, the representatives of the attempted changes kept the conversation limited to its scientific and educational aspect and didn’t attempt to provide political interpretation to the demonstrated reactions. On the contrary, the representatives of the reaction probably had as a starting point the ideology which connected tightly the sense of nation with language and established its continuation from the language past to the language future.
Modelling of single vertical piles subjected to monotonic and cyclic lateral loads and free-field movements
Creators: name: Vazinkhoo, Saman
Publisher: name: University of British Columbia
Year: 2009

description: In the past twenty years, many researchers and practitioners have become interested in the behaviour of piles under lateral loading conditions. Although piles are generally used to carry axial loads, quite often, such as in the case of seismic loads and/or lateral loads caused by ground displacement, they are required to carry lateral loads. The ability to predict the performance of piles under lateral loading caused by earhquakes is very important and is the focus of this thesis. To date very few and limited modelling techniques have been developed based on data obtained from testing of full size piles. This is due to the high costs involved with performing comprehensive experiments on prototype piles. The response of piles to lateral loads may be analyzed using different methods ranging from complex 3-D finite element techniques to simple closed-form solutions for an elastic beam on an elastic foundation. This thesis employs the modulus of subgrade reaction approach due to its versatality and ease of use. In the last five years, large amount of data from pile lateral load tests have become available. In this thesis, the available methods and models for analysing laterally loaded vertical piles are first reviewed and then two new models are developed. The first is a new cyclic P-y curve model based on the Hydraulic Gradient Similitude (HGS) tests carried out by Yan (1990). Then a new numerical model is developed which incorporates the first model and other P-y curves for analysis of laterally loaded vertical piles. The new numerical model is incorporated into the computer program CYCPILE which is calibrated and verified using the available test data. In general, excellent agreement between the model predictions and the test data is obtained.
WKB-type Approximation to Noncommutative Quantum Cosmology
Creators: name: Mena, E.
name: Obregon, O.
name: Sabido, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, we develop and apply the WKB approximation to several examples of noncommutative quantum cosmology, obtaining the time evolution of the noncommutative universe, this is done starting from a noncommutative quantum formulation of cosmology where the noncommutativity is introduced by a deformation on the minisuperspace variables. This procedure gives a straightforward algorithm to incorporate noncommutativity to cosmology and inflation.
description: Revtex4, 6 pages, no figures
Reconfigurable Cyber-Physical System for Lifestyle Video-Monitoring via Deep Learning
Creators: name: Deniz, Daniel
name: Barranco, Francisco
name: Isern, Juan
name: Ros, Eduardo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Indoor monitoring of people at their homes has become a popular application in Smart Health. With the advances in Machine Learning and hardware for embedded devices, new distributed approaches for Cyber-Physical Systems (CPSs) are enabled. Also, changing environments and need for cost reduction motivate novel reconfigurable CPS architectures. In this work, we propose an indoor monitoring reconfigurable CPS that uses embedded local nodes (Nvidia Jetson TX2). We embed Deep Learning architectures to address Human Action Recognition. Local processing at these nodes let us tackle some common issues: reduction of data bandwidth usage and preservation of privacy (no raw images are transmitted). Also real-time processing is facilitated since optimized nodes compute only its local video feed. Regarding the reconfiguration, a remote platform monitors CPS qualities and a Quality and Resource Management (QRM) tool sends commands to the CPS core to trigger its reconfiguration. Our proposal is an energy-aware system that triggers reconfiguration based on energy consumption for battery-powered nodes. Reconfiguration reduces up to 22% the local nodes energy consumption extending the device operating time, preserving similar accuracy with respect to the alternative with no reconfiguration.
Finite Temperature Spectral Densities of Momentum and R-Charge Correlators in $\N=4$ Yang Mills Theory
Creators: name: Teaney, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute spectral densities of momentum and R-charge correlators in thermal $\N=4$ Yang Mills at strong coupling using the AdS/CFT correspondence. For $ω\sim T$ and smaller, the spectral density differs markedly from perturbation theory; there is no kinetic theory peak. For large $ω$, the spectral density oscillates around the zero-temperature result with an exponentially decreasing amplitude. Contrast this with QCD where the spectral density of the current-current correlator approaches the zero temperature result like $(T/ω)^4$. Despite these marked differences with perturbation theory, in Euclidean space-time the correlators differ by only $\sim 10%$ from the free result. The implications for Lattice QCD measurements of transport are discussed.
description: 18 pages, 3 figures
Fluid Dynamics in the Ellis Wormhole
Creators: name: Butbaia, G.
name: Osmanov, Z. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the Ellis wormhole metrics we study characteristics of fluid dynamics and the properties of linear sound waves. By implying the energy-momentum equation and the continuity equation in the general relativistic manner we examine the flow dynamics and solve the corresponding equations for a relatively simple case - radial flow. To study the linear sound waves the equations governing the mentioned physical system are linearized and solved and interesting characteristic properties are found.
description: 12 pages, 7 figures
Additional file 2 of Does one plus one always equal two? Structural differences between nesfatin-1, -2, and nesfatin-1/2
Creators: name: Lenda, Rafał
name: Padjasek, Michał
name: Krężel, Artur
name: Ożyhar, Andrzej
name: Bystranowska, Dominika
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Cancer

description: Additional file 1. Supplementary figures and tables.
Synthetic Mid-UV Spectroscopic Indices of Stars
Creators: name: Chavez, M.
name: Bertone, E.
name: Buzzoni, A.
name: Franchini, M.
name: Malagnini, M. L.
name: Morossi, C.
name: Rodriguez-Merino, L. H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using the UVBLUE library of synthetic stellar spectra we have computed a set of mid-UV line and continuum spectroscopic indices. We explore their behavior in terms of the leading stellar parameters [T_eff,log(g)]. The overall result is that synthetic indices follow the general trends depicted by those computed from empirical databases. Separately we also examine the index sensitivity to changes in chemical composition, an analysis only feasible under a theoretical approach. In this respect, lines indices FeI3000, BL3096 and MgI2852 and the continuum index 2828/2921 are the least sensitive features, an important characteristic to be taken into account for the analyses of integrated spectra of stellar systems. We also quantify the effects of instrumental resolution on the indices and find that indices display variations up to 0.1 mag in the resolution interval between 6-10 angstrom of FWHM. We discuss the extent to which synthetic indices are compatible with indices measured in spectra collected by the International Ultraviolet Explorer (IUE). Five line and continuum indices (FeI3000, 2110/2570, 2828/2921, S2850, and S2850L) display a remarkable good correlation with observations. The rest of the indices are either underestimated or overestimated, however, two of them, MgWide and BL3096, display only marginal discrepancies. For 11 indices we give the coefficients to convert synthetic indices to the IUE system. This work represents the first attempt to synthesize mid-UV indices from high resolution theoretical spectra and foresees important applications for the study of the ultraviolet morphology of old stellar aggregates.
description: 20 pages, 6 figures; accepted for publication in The Astrophysical Journal