cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Financing of Development and Improvement of Agriculture in Lajkovac Municipality
Creators: name: Ivanovic, Lana
name: Subic, Jonel
name: Jelocnik, Marko
name: Ivanovic, Lana
name: Subic, Jonel
name: Jelocnik, Marko
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agricultural Finance
subject: financing
subject: agriculture
subject: Lajkovak municipality

description: Having in mind the process of EU enlargement and its positive impact on the Republic of Serbia, it is evident that in future development of national agriculture, farms financing will represent crucial activity. Agricultural husbandries funding has decisive role in realization of agricultural and rural development goals and priorities, primarily as a driving instrument of quantitative and qualitative growth of total agricultural production factors and production, but also to create conditions for a better life in the countryside. Municipality of Lajkovac, by its geographical location, relief, available natural resources, as well as by created economic potentials, represents an interesting area for business activities of agricultural husbandries. Territory of Lajkovac municipality has traditionally developed live stock breeding production, characterized by very favorable conditions for breeding of cows and heifers of Simmental race. Also, relatively significant are crop growing and production of virus-free nursery plants. In paper was analyzed the financing of development and improvement of agriculture, both at regional and national level. Accordingly, by research was covered funding of agriculture in Lajkovac municipality, as well as characteristics of funding sources in agriculture on the territory of Kolubara district, Central Serbia and complete Republic. Also, were presented possible investment directions of local farms, as well as overview of potential funding sources for sustainable development of agriculture in incoming period.
Equilibrium Contracts in the Israeli Citrus Industry
Creators: name: Kachel, Yael
name: Kislev, Yoav
name: Finkelshtain, Israel
name: Kachel, Yael
name: Kislev, Yoav
name: Finkelshtain, Israel
Publisher: name: Unknown
Year: 2003
Subjects: Agricultural and Food Policy
Crop Production/Industries

description: The Israeli citrus industry, made of several thousands growers, is served by an oligopoly of several exporters. The export sector is highly concentrated; the market share of the 3 largest firms is above 95% and the HHI level is 2,620. Exporters offer growers contracts, generally on a ”take it or leave it” basis. Growers are supplying their fruit to exporters of their choice. In contrast to the typical result of textbook contract theory that predicts profit sharing, the most common contracts in the industry are of the consignment kind and they provide little price information. In this paper we develop a model to explain this phenomenon in terms of strategic behavior of exporters who offer consignment contracts in order to conceal price information and reduce price competition. This explanation is examined in an econometric study of the industry.
Studies of Classical Analysis after Whittaker and Watson
Creators: name: Lee, Ting-Yao
Publisher: name: Utah State University
Year: 2021

description: The goal of this thesis is to solve problems from the first four chapters of the book, titled A Course of Modern Analysis: An Introduction to the General Theory of Infinite Processes and of Analytic Functions with an Account of the Principal Transcendental Functions by E.T. Whittaker and G.N. Watson. The titles of the first four chapters are “Complex Numbers,” “The Theory of Convergence,” “Continuous Functions and Uniform Convergence,” and “The Theory of Riemann Integration,” respectively. This book is a classic mathematical analysis textbook that contains some challenging end-of-chapter exercises and some details within each chapter are often left to the readers. Many exercises are results of famous mathematicians or problems from an older era of the Cambridge Mathematical Tripos. The purpose of this thesis is to provide solutions to the exercises in Chapters 1-4 and give insight to the readers of the book.
Responses of Pacific Fishers to Habitat Changes as a Result of Forestry Practices in Southwestern Oregon
Creators: name: Smith, Tessa R.
Publisher: name: Utah State University
Year: 2021

description: The fisher (Pekania pennanti) is a medium-sized carnivore found in mature forest stands across much of the northern United States. Although historically abundant in the west, fisher populations declined rapidly after fur trapping, extensive logging, and urban development reduced their numbers. Currently, biologists are concerned about the effects timber harvest practices have on fisher tolerance and adaptability when faced with changes to high-quality habitat stands. Tree removal and thinning of understory vegetation are frequently used to alleviate the spread of wildfires in previously dense forest stands with a potential for large-scale habitat loss; yet, a deficit of large trees and important vegetation attributes could be detrimental to fisher survival. We explored the impacts of timber treatments on fisher behavior and habitat preferences in a watershed system near Ashland, Oregon between 2010 and 2017. In our study, we assessed where fishers were found in their home ranges before and after treatments occurred (i.e., measuring fisher distance to treatment units), as well as the habitat features they selected pre- and post-treatment. Our results indicated that although most fishers moved away from treated areas, they still used untreated portions of their home ranges. For habitat selection, fishers chose sites at lower elevations, with low to moderate rugged topography, and they selected moderately steep slopes. They also preferred canopy cover 60% or higher and vegetation types consisting of conifers and hardwoods. We concluded that fishers were able to tolerate ongoing treatments in their home ranges as long as adequate canopy cover and large structures remained for their use on the landscape.
Nonperturbative renormalization group approach to frustrated magnets
Creators: name: Delamotte, B.
name: Mouhanna, D.
name: Tissier, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This article is devoted to the study of the critical properties of classical XY and Heisenberg frustrated magnets in three dimensions. We first analyze the experimental and numerical situations. We show that the unusual behaviors encountered in these systems, typically nonuniversal scaling, are hardly compatible with the hypothesis of a second order phase transition. We then review the various perturbative and early nonperturbative approaches used to investigate these systems. We argue that none of them provides a completely satisfactory description of the three-dimensional critical behavior. We then recall the principles of the nonperturbative approach - the effective average action method - that we have used to investigate the physics of frustrated magnets. First, we recall the treatment of the unfrustrated - O(N) - case with this method. This allows to introduce its technical aspects. Then, we show how this method unables to clarify most of the problems encountered in the previous theoretical descriptions of frustrated magnets. Firstly, we get an explanation of the long-standing mismatch between different perturbative approaches which consists in a nonperturbative mechanism of annihilation of fixed points between two and three dimensions. Secondly, we get a coherent picture of the physics of frustrated magnets in qualitative and (semi-) quantitative agreement with the numerical and experimental results. The central feature that emerges from our approach is the existence of scaling behaviors without fixed or pseudo-fixed point and that relies on a slowing-down of the renormalization group flow in a whole region in the coupling constants space. This phenomenon allows to explain the occurence of generic weak first order behaviors and to understand the absence of universality in the critical behavior of frustrated magnets.
description: 58 pages, 15 PS figures
Short- and Long-Term Mechanisms for Increasing Inputs of Phosphorus in Mountain Waterbodies of Northeastern Utah, USA
Creators: name: Scholz, Jessica
Publisher: name: Utah State University
Year: 2021

description: Phosphorus is an essential nutrient that allows life in water to flourish, but changes in phosphorus supplies are not well understood in remote watersheds. In mountain environments, remote watersheds contain critical high-quality water supplies and unique ecosystems, but excess phosphorus can diminish water quality by producing unfavorable aquatic species. Therefore, observed trends of increasing phosphorus concentrations in remote lakes and rivers in the US over the last two decades are a significant concern. Using the Uinta Mountains as a case study, we evaluated three different direct and indirect pathways for phosphorus increases in remote mountain watersheds that may explain observed increases over the last two decades. These mechanisms include atmospheric deposition of dust enriched in phosphorus and changing soil conditions (i.e., increasing soil temperatures and increasing soil pH), leading to greater land exports of phosphorus from runoff or erosion. In the Uinta Mountains, dust had concentrations of phosphorus considered biologically available and could be contributing 4.9 to 17.7 mg P m-2 yr-1, This likely represents an important source of phosphorus to this area. Also, greater release of SRP from soils incubated at the higher temperatures suggests climate change may further increase phosphorus concentrations in the future. Given the lack of historical acidification in the Uinta mountains, changing pH conditions are not likely to be a factor driving phosphorus increases in this system, but could potentially be in other alpine systems. This study highlights the importance of identifying local variables in discerning significant sources of phosphorus and disparages a single explanation for national increases in phosphorus in remote systems.
A standardized two day nursing orientation program : a quality improvement project at a private hospital in Hong Kong
Creators: name: Mok, Keilee
Publisher: name: The University of British Columbia
Year: 2017

description: Background/Purpose: As private hospitals become more popular in Hong Kong, the quality of nursing care has become the focus of executive teams within the private sectors. With recent high nursing turnover rate and low work morale, Hospital S (a private hospital in Hong Kong), has created a new standardized two-day nursing orientation program to address this nursing shortage. The overall objectives of this orientation program are: to strengthen nursing professional identity, to standardize nursing competency, and to build a confident and competent nursing team to provide safe care. The purpose of this paper is to discuss the creation of this quality improvement project, the Strength-Weakness-Opportunity-Threats (SWOT) analysis framework, and the application of leadership strategies along the implementation process. Method: Through a two-day interactive, structured program, new nurses have gained evidence based knowledge and practice, professional standards, and practical skills that were aimed for better clinical transition. Through case studies, practicum, and group discussion, key concepts such as patient safety, organizational values, and professional standards were reinforced. Leaders applied strategies, such as structural and psychological empowerment and staff engagement, throughout the program to ensure an increased level of nursing commitment, nurse satisfaction, and self-confidence. Results: A high level of satisfaction toward this program was reported by 18 new nurses with an increased level of professional confidence and competency. Also, this program was perceived as highly useful for clinical practice by the nurses who participated. Further, there was a high pass rate for both pre-orientation and post-orientation written test among the new nurses. These two tests were used to evaluate new nurses’ understanding of pre-reading material and orientation material. In addition, there was a 100% compliance with completed competency checklists. Conclusion: The findings indicated that this program has empowered new nurses to be confident in their clinical practice through providing structured education, professional supports, and organizational resources. Both successes and lessons learned from this program will hopefully act as a blueprint for nurse leaders when they undertake their quality improvement projects.
Continuous Null-Point Magnetic Reconnection Builds Up a Torus Unstable Magnetic Flux Rope Triggering the X9.3 Flare in Solar Active Region~12673
Creators: name: Zou, Peng
name: Jiang, Chaowei
name: Wei, Fengsi
name: Feng, Xueshang
name: Zuo, Pingbing
name: Wang, Yi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Two X-class solar flares occurred on 2017 September 6 from active region NOAA 12673: the first one is a confined X2.2 flare, and it is followed only $\sim 3$ hours later by the second one, which is the strongest flare in solar cycle 24, reaching X9.3 class and accompanied with a coronal mass ejection. Why these two X-class flares occurred in the same position with similar magnetic configurations, but one is eruptive while the other is not? Here we track the coronal magnetic field evolution via nonlinear force-free field extrapolations from a time sequence of vector magnetograms with high cadence. A detailed analysis of the magnetic field shows that a magnetic flux rope (MFR) forms and grows gradually before the first flare, and shortly afterwards, the MFR's growth is significantly enhanced with a much faster rise in height, from far below the threshold of torus instability to above it, while the magnetic twist only increases mildly. Combining EUV observations and the magnetic field extrapolation, we found that overlying the MFR is a null-point magnetic topology, where recurrent brightening is seen after the first flare. We thus suggest a scenario to interpret the occurrence of the two flares. The first flare occurred since the MFR reached a high enough height to activate the null point, and its continuous expansion forces the null-point reconnection recurrently. Such reconnection weakens the overlying field, allowing the MFR to rise faster, which eventually crosses the threshold of torus instability and triggers the second, eruptive flare.
description: 11 pages, 5 figures, accepted by ApJ
Doomsday Dashboards
Creators: name: Lowrance, Chanda Mandisa
Publisher: name: Zenodo
Year: 2025

description: Doomsday Dashboards is a cutting-edge, interactive eZine platform that revolutionizes the way users consume news and information, with a primary focus on politics and current events, particularly those related to global crises, governance, and societal change. Our mission is to empower individuals with accurate, engaging, and up-to-date content to help them stay informed, prepared, and ready for any potential cataclysmic event. For more updates on Doomsday Dashboards, please visit our landing page at https://doomsdaydashboards.neocities.org/.
Why Nicaraguan Peasants Stay in Agricultural Production Cooperatives
Creators: name: Ruben, Ruerd
name: Lerman, Zvi
name: Ruben, Ruerd
name: Lerman, Zvi
Publisher: name: Unknown
Year: 2004
Subjects: Agricultural and Food Policy
Public Economics

description: Despite the official support for parcellation of agricultural production cooperatives created under the Sandinist land reform in Nicaragua, a substantial number of peasants have decided to continue membership. Whereas theory suggests that individual farms are more productive and more efficient, Nicaraguan cooperatives did not fully split up. We aim to identify the factors that govern the choice of Nicaraguan peasants between staying in a cooperative and exiting to start an individual farm. We used sample data from 475 landed households in four agroecological macro-regions to compare resources, incomes and productivity of peasants continuing in production cooperatives, former members of cooperatives who became independent farmers, and peasants who had always been engaged in independent farming. Low capital endowments of the new independent farmers adversely affect their standard of living. Better access to non-farm income encourages peasants to remain in the cooperative where they are less exposed to risk. Uncertainty associated with land ownership and difficulties with resolution of cooperative debt play a dominant role in keeping Nicaraguan peasants in cooperatives. Cooperative members still maintain a high degree of coordination of activities in order to capture the benefits of rural development programs.
Effects of Appetitive, Pre-Exposed, and Novel Distracters on Interval Timing Behavior: Role of Nomifensine within the Prelimbic Cortex
Creators: name: Matthews, Alexander R.
Publisher: name: Utah State University
Year: 2021

description: Poor attentional focus harms the estimation of time within the seconds-to-minutes range, i.e. interval timing. Interval timing behavior is related to several cognitive functions including perception of the passage of time, decision making, and to memory processes. Harmful delays in timing are caused by distractions of attention, within the timing task in the form of novel, or familiar distracters, which may or may not have been previously conditioned. The purpose of this dissertation was to explore how attention to novel or familiar distractions within the timing task can be altered using catecholamine reuptake blocker nomifensine. The experiment in Chapter 3, found group differences due to the differences in the conditioning to the noise stimulus, i.e. the familiarity to the stimulus altered the resulting time delays behaviors of the rats. Additionally, the results from Chapter 3 show that nomifensine, a medication that inhibited the reuptake of dopamine and norepinephrine, was differentially effective at reducing the time delays resulting from the presentation of the noise distracter within a peak interval timing paradigm. The fact that group differences exist due to the conditioning setup, and there appears to be differences in the sensitivity to the drug, indicates that drugs that alter attention to timing involve complex interactions within the timing circuit to catecholamine modulation.
Η διεξαγωγή «υβριδικών επιχειρήσεων»: έννοια, προκλήσεις και εφαρμογή των κανόνων του δικαίου χρήσης βίας
Creators: name: Μπουρτζής, Γεώργιος Αντωνίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Δημόσιο Διεθνές Δίκαιο
Υβριδικές επιχειρήσεις
Χρήση βίας
Public International Law
Hybrid Operations
Use of force

description: Σκοπός της εργασίας ήταν η μελέτη των «υβριδικών επιχειρήσεων» από την σκοπιά του διεθνούς δικαίου χρήσης βίας. Η έννοια εξετάστηκε, αναλύθηκε και ορίστηκε με την βοήθεια των παρεμφερών εννοιών του «υβριδικού πολέμου» και της «υβριδικής απειλής». Παρουσιάσαμε παραδείγματα υβριδικών επιχειρήσεων, όπως οι κυβερνοεπιθέσεις, τις διακρίναμε από συγγενείς όρους και αναδείξαμε τα κύρια χαρακτηριστικά τους και την έννοια της νομικής ασυμμετρίας. Αναδείχθηκε η καίρια θέση της απαγόρευσης χρήσης βίας για την θεματική μας και διακρίναμε ανάμεσα σε επιχειρήσεις με χρήση βίας χαμηλής έντασης που δεν την παραβιάζουν, σε επιχειρήσεις με χρήση βίας που την παραβιάζουν και σε επιχειρήσεις που φτάνουν και στο όριο της ένοπλης επίθεσης. Ακολουθεί η ανάλυση της έννοιας των αντιμέτρων και του δικαιώματος άμυνας, συσχετίζοντας την επίκλησή τους με την δράση των κρατών που τελούν υβριδικές επιχειρήσεις. Παρουσιάστηκε η «οπλοποίηση» δικαίου ως κατεξοχήν χαρακτηριστικό των υβριδικών επιχειρήσεων και παραδείγματα νομικών εννοιών που οπλοποιούνται. Στην συνέχεια, προχωρήσαμε στην περιπτωσιολογία υβριδικών επιχειρήσεων με τα παραδείγματα της Ρωσίας στην Κριμαία και Ανατολική Ουκρανία, της Κίνας στην Νότια Σινική Θάλασσα και των τακτικών αντιμετώπισης τέτοιων επιχειρήσεων του ΝΑΤΟ. Τέλος, παρατίθενται τα συμπεράσματα που αντλήθηκαν από την ανάλυση
description: The aim of the present thesis was the study of the “hybrid operations” from the scope of the international law on the use of force. The concept was examined, analyzed and defined with the aid of the similar concepts of “hybrid warfare” and “hybrid threat”. We presented examples of hybrid operations, such as cyberattacks, we distinguished them from relative terms and we highlighted their main features and the concept of legal asymmetry. The crucial place of the prohibition of the use of force for our subject was spotted and we discerned between operations that include the use of force of low intensity that do not violate the prohibition, operations that include the use of force that violate the prohibition and operations that reach the limit of an armed attack. The analysis of the concept of countermeasures and the right of self-defence follows, correlating their invocation with the actions of states that conduct hybrid operations. We presented “lawfare” as a main feature of hybrid operations and exampled of legal concepts that fall under this tactic. Furthermore, we proceeding with case studies of hybrid operations with the examples of Russia in Crimea and Eastern Ukraine, China in the South Chinese Sea and NATO tactics confronting such operations. Finally, the conclusions drawn from the analysis are cited
Ταυτόχρονος προσδιορισμός φαινυλεφρίνης και τροπικαμίδης σε αίμα με αέρια χρωματογραφία συζευγμένη με φασματομετρία μαζών (GC – MS)
Creators: name: Γάκη, Αικατερίνη Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Φαινυλεφρίνη
Τροπικαμίδη
Αέρια Χρωματογραφία
Φασματομετρία Μαζών
Phenylephrine
Tropicamide
Gas Chromatography
Mass Spectrometry

description: Η φαινυλεφρίνη και η τροπικαμίδη χρησιμοποιούνται ως μυδριατικά σε οφθαλμικά διαλύματα. Έγινε ανάπτυξη μιας αξιόπιστης, εκλεκτικής και σύντομης μεθόδου για τον ταυτόχρονο προσδιορισμό τους σε αίμα με την χρήση GC – MS. Για τον προσδιορισμό των ουσιών χρησιμοποιήθηκε ως αντιδραστήριο παραγωγοποίησης το HFBA και ως εσωτερικό πρότυπο η ετιλεφρίνη. Η μέθοδος που αναπτύχθηκε ήταν εκλεκτική, γραμμική (R2 = 0,9997 για την φαινυλεφρίνη και R2 = 0,9972 για την τροπικαμίδη), επαναλήψιμη (RSD % < 6,8 % για την φαινυλεφρίνη και RSD % < 5,42 % για την τροπικαμίδη) και ακριβής (ανάκτηση 97,57 – 118,59 % για την φαινυλεφρίνη και 93,32 – 105,98 % για την τροπικαμίδη). Τέλος έγινε εφαρμογή της μεθόδου με την ανάλυση δειγμάτων αίματος ανθρώπων μετά από την χορήγηση οφθαλμικών σταγόνων που περιείχαν αυτές τις ουσίες
description: Phenylephrine and tropicamide are used as mydriatic agents in ophthalmic pharmaceutical preparations. A reliable, sensitive and rapid method was developed for the simultaneous determination of these substances in human blood using GC – MS. In order to achieve the determination, HFBA was used as a derivatization reagent and etilefrine was used as an internal standard. The developed method was sensitive, linear (R2 = 0,9997 for phenylephrine and R2 = 0,9972 for tropicamide), repeatable (RSD % < 6,8 % for phenylephrine and RSD % < 5,42 % for tropicamide) and accurate (recovery 97,57 – 118,59 % for phenylephrine and 93,32 – 105,98 % for tropicamide). The method was applied to the analysis of human blood following the application of ophthalmic drops containing these two substances
Analytical study of the effect of recombination on evolution via DNA shuffling
Creators: name: Peng, Weiqun
name: Levine, Herbert
name: Hwa, Terence
name: Kessler, David A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We investigate a multi-locus evolutionary model which is based on the DNA shuffling protocol widely applied in \textit{in vitro} directed evolution. This model incorporates selection, recombination and point mutations. The simplicity of the model allows us to obtain a full analytical treatment of both its dynamical and equilibrium properties, for the case of an infinite population. We also briefly discuss finite population size corrections.
title: Demonstrator einer Anzeige auf flexiblem Substrat zur Blutzuckerüberwachung
Creators: name: Holzheimer, Nicolas
Publisher: name: Hochschule für Angewandte Wissenschaften Landshut
Year: 2022

description: Die vorliegende Arbeit befasst sich mit der Realisierung eines Demonstrators einer Anzeige auf flexiblem Substrat zur Blutzuckerüberwachung. Hier soll untersucht werden, inwieweit es möglich ist, eine komplette Schaltung samt gedrucktem ELD (Elektrolumineszenz-Display) auf einem PET-Substrat (Polyethylenterephthalat-Substrat) unterzubekommen.
In dieser Arbeit soll der Entwicklungs- und Fertigungsprozess einer Anzeige zur Blutzuckerüberwachung aufgezeigt werden. Die Besonderheit liegt in der Fertigungstechnik der Hardware, genauer gesagt der Platine und des Displays. Hierfür wurden die Leiterbahnen für das Platinen-Layout nicht mit einem Ätzverfahren hergestellt, sondern per Dickschichtsiebdruck. Mit diesem Verfahren wird auch die Anzeige auf Basis von Elektrolumineszenz-Displays erstellt. Dies ermöglicht ein flexibles Substrat und somit auch eine flexible gesamte Schaltung.
Die Arbeit beschreibt die Herangehensweise und die Ergebnisse, welche im Rahmen dieses Projektes zu dem Thema gesammelt werden konnten, besonders in Bezug auf die Fixierung von Bausteinen, in festem Gehäuse, auf flexiblem Substrat. Hierfür wurde das Verhalten von Leitklebern auf den gedruckten Leiterbahnen untersucht.
The Joint Dynamics of Off-Farm Employment and the Level of Farm Activity
Creators: name: Ahituv, Avner
name: Kimhi, Ayal
name: Ahituv, Avner
name: Kimhi, Ayal
Publisher: name: Unknown
Year: 2005
Subjects: Agricultural and Food Policy
Labor and Human Capital

description: We analyze the simultaneous determination and evolution over time of two decisions made by self-employed farm operators: off-farm work and the level of farm activity. Using a panel of Israeli farm households observed in 1981 and 1995, we estimate jointly a multinomial choice model of work activity and an endogenous switching regression of farm size that enables us to account for unobserved heterogeneity and correct for simultaneity bias. The results show that changes in farm size are closely linked to the off-farm labor decisions. In particular, we identify two different paths in the evolvement of farm families over time. Farms that expand and have a low likelihood of working off the farm follow one path, while other farms downsize their farming operation and increase their engagement in the off-farm labor market. Therefore, the distribution of farms is converging towards a bi-modal distribution, with large farms operated by full-time farmers on one extreme and smaller part-time farms on the other extreme, whose income is derived mostly from off-farm sources. These results could not have been obtained without treating the level of farm activity as endogenous to the work choice decisions.
Optimal Scheduling for Maximizing Information Freshness & System Performance in Industrial Cyber-Physical Systems
Creators: name: Sinha, Devarpita
name: Roy, Rajarshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Performance (cs.PF)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Age of Information is a newly introduced metric, getting vivid attention for measuring the freshness of information in real-time networks. This parameter has evolved to guarantee the reception of timely information from the latest status update, received by a user from any real-time application. In this paper, we study a centralized, closed-loop, networked controlled industrial wireless sensor-actuator network for cyber-physical production systems. Here, we jointly address the problem of transmission scheduling of sensor updates and the restoration of an information flow-line after any real-time update having hard-deadline drops from it, resulting a break in the loop. Unlike existing real-time scheduling policies that only ensure timely updates, this work aims to accomplish both the time-sensitivity and data freshness in new and regenerative real-time updates in terms of the age of information. Here, the coexistence of both cyber and physical units and their individual requirements for providing the quality of service to the system, as a whole, seems to be one of the major challenges to handle. In this work, minimization of staleness of the time-critical updates to extract maximum utilization out of its information content and its effects on other network performances are thoroughly investigated. A greedy scheduling policy called Deadline-aware highest latency first has been used to solve this problem; its performance optimality is proved analytically. Finally, our claim is validated by comparing the results obtained by our algorithm with those of other popular scheduling policies through extensive simulations.
description: 21 Pages, 6 figures, 2 tables
Algorithmic Methods for Non-Classical Logics
Creators: name: Dimiter Georgiev
Publisher: name: figshare
Year: 2021
Subjects: subject: 10107 Mathematical Logic, Set Theory, Lattices and Universal Algebra
subject: FOS: Mathematics

description: The scope of the dissertation is to define a deterministic version of the SQEMA algorithm, to show that it still succeeds on the two well-known classes of elementary modal formulas – the Sahlqvist and Inductive classes, and to show some modal and first-order definability results for two classes of Kripke frames, which are interesting in the area of artificial intelligence, namely, the KD45-frames and the Euclidean frames.
A Common Origin of Neutrino Masses and $R_{D^{(\ast)}}$, $R_{K^{(\ast)}}$ Anomalies
Creators: name: Saad, Shaikh
name: Thapa, Anil
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we present a solution to the persistent tensions in the decay observables $R_{D^{(\ast)}}$ and $R_{K^{(\ast)}}$ by introducing a $SU(2)_L$ doublet and a $SU(2)_L$ triplet scalar leptoquarks (LQs) that reside at the TeV energy scale. Neutrinos that remain massless in the Standard Model receive naturally small masses at one-loop level via the propagation of the same LQs inside the loop. Such a common origin of apparently disjoint phenomenological observations is appealing, and we perform a comprehensive analysis of this set-up. We identify the minimal Yukawa textures required to accommodate these flavor anomalies and to successfully incorporate neutrino oscillation data while being consistent with all experimental constraints. This scenario has the potential to be tested at the experiments by the future improved measurements in the lepton flavor violating processes. Furthermore, proper explanations of these flavor anomalies predict TeV scale LQs that are directly accessible at the LHC.
description: 38 pages, 9 figures; Accepted in Physical Review D
Rapidity and transverse momentum dependence of pion-pion Bose-Einstein correlations measured at 20, 30, 40, 80, and 158 AGeV beam energy
Creators: name: Kniege, Stefan
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Preliminary results on pion-pion Bose-Einstein correlations in central Pb+Pb collisions measured by the NA49 experiment are presented. Rapidity as well as transverse momentum dependence of the HBT-radii are shown for collisions at 20, 30, 40, 80, and 158 AGeV beam energy. Including results from AGS and RHIC experiments only a weak energy dependence of the radii is observed. Based on hydrodynamical models parameters like lifetime and geometrical radius of the source are derived from the dependence of the radii on transverse momentum.
description: 5 pages, 4 figures, contribution to the Quark Matter conference, Oakland, USA, Jan 11-17, 2004
Visitor Perceptions and Resource Conditions of Campsites in Two Coastal Alaskan National Parks
Creators: name: Wesstrom, Shannon T.
name: ,
name: ,
name: ,
name: ,
Publisher: name: Utah State University
Year: 2021

description: Increasing visitation in parks and protected areas presents managers with the challenge of providing quality visitor experiences while mitigating ecological impacts from recreation. Successful management strategies often suggest determining desired conditions for visitor experiences and ecological conditions to establish thresholds. These thresholds can then be compared to existing conditions in order to determine if changes in management strategies should be made. By integrating visitor survey results with ecological assessments, this research is a unique coastal Alaskan regional analysis of the three components of a management framework: 1. Establishes visitor determined thresholds of acceptability for crowding and coastal resource conditions in Glacier Bay National Park and Preserve (GLBA); 2. Compares those thresholds to existing conditions, and; 3. Evaluates the monitoring efforts of campsites in Kenai Fjords National Park (KEFJ) to explore patterns in changing campsite conditions. Crowding thresholds derived from the GLBA survey results suggest that current backcountry group sizes are acceptable to most visitors; however, coastal resource condition results indicate that the number of tent rocks left undispersed on campsites exceed the established threshold. Patterns in changing campsites at KEFJ were detected by park region and several statistical analyses proved improvements could be made to the current monitoring protocol. The results from this research support the need for proactive management strategies and provide suggestions for improved ecological monitoring protocols.
Michaelis-Menten Dynamics in Complex Heterogeneous Networks
Creators: name: Gomez-Gardenes, Jesus
name: Moreno, Yamir
name: Floria, Luis M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Biological networks have been recently found to exhibit many topological properties of the so-called complex networks. It has been reported that they are, in general, both highly skewed and directed. In this paper, we report on the dynamics of a Michaelis-Menten like model when the topological features of the underlying network resemble those of real biological networks. Specifically, instead of using a random graph topology, we deal with a complex heterogeneous network characterized by a power-law degree distribution coupled to a continuous dynamics for each network's component. The dynamics of the model is very rich and stationary, periodic and chaotic states are observed upon variation of the model's parameters. We characterize these states numerically and report on several quantities such as the system's phase diagram and size distributions of clusters of stationary, periodic and chaotic nodes. The results are discussed in view of recent debate about the ubiquity of complex networks in nature and on the basis of several biological processes that can be well described by the dynamics studied.
description: Paper enlarged and modified, including the title. Some problems with the pdf were detected in the past. If they persist, please ask for the pdf by e-mailing yamir(at_no_spam)unizar.es. Version to appear in Physica A
Entanglement Entropy of Generalized Moore-Read Fractional Quantum Hall State Interfaces
Creators: name: Sohal, Ramanjit
name: Han, Bo
name: Santos, Luiz H.
name: Teo, Jeffrey C. Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topologically ordered phases of matter can be characterized by the presence of a universal, constant contribution to the entanglement entropy known as the topological entanglement entropy (TEE). The TEE can been calculated for Abelian phases via a "cut-and-glue" approach by treating the entanglement cut as a physical cut, coupling the resulting gapless edges with explicit tunneling terms, and computing the entanglement between the two edges. We provide a first step towards extending this methodology to non-Abelian topological phases, focusing on the generalized Moore-Read (MR) fractional quantum Hall states at filling fractions $ν=1/n$. We consider interfaces between different MR states, write down explicit gapping interactions, which we motivate using an anyon condensation picture, and compute the entanglement entropy for an entanglement cut lying along the interface. Our work provides new insight towards understanding the connections between anyon condensation, gapped interfaces of non-Abelian phases, and TEE.
description: 34 pages; 2 figures. v2: updated references. v3: minor edits
Effects of Dark Energy anisotropic stress on the matter power spectrum
Creators: name: Garcia-Arroyo, Gabriela
name: Cervantes-Cota, Jorge L.
name: Nucamendi, Ulises
name: Aviles, Alejandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the effects of dark energy (DE) anisotropic stress on features of the matter power spectrum (PS). We employ the Parametrized Post-Friedmannian (PPF) formalism to emulate an effective DE, and model its anisotropic stress properties through a two-parameter equation that governs its overall amplitude ($g_0$) and transition scale ($c_g$). For the background cosmology, we consider different equations of state to model DE including a constant $w_0$ parameter, and models that provide thawing (CPL) and freezing (nCPL) behaviors. We first constrain these parameters by using the Pantheon, BAO, $H_0$ and CMB Planck data. Then, we analyze the role played by these parameters in the linear PS. In order for the anisotropic stress not to provoke deviations larger than $10\%$ and $5\%$ with respect to the $Λ$CDM PS at $k \sim 0.01 \,h/\text{Mpc}$, the parameters have to be in the range $-0.30< g_0 < 0.32$, $0 \leq c_g^2 < 0.01$ and $-0.15 < g_0 < 0.16$, $0 \leq c_g^2 < 0.01$, respectively. Additionally, we compute the leading nonlinear corrections to the PS using standard perturbation theory in real and redshift space, showing that the differences with respect to the $Λ$CDM are enhanced, especially for the quadrupole and hexadecapole RSD multipoles.
description: 19 pages, 13 figures, 1 table
More or Better? Quantity and Quality Issues in Tourism Consumption
Creators: name: Fleischer, Aliza
name: Rivlin, Judith
name: Fleischer, Aliza
name: Rivlin, Judith
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: Public Economics
subject: quality and quantity
subject: unit value
subject: income and demand elasticity

description: The tourism industry is facing a dilemma whether to increase capacity or improve quality in order to meet growing tourism expenditures. The ability to decompose expenditures into their quality and quantity components can provide insight for the industry's decision-makers. A theoretical model of household demand for tourism was developed while distinguishing between quality and quantity of the households’ vacations. Income and price elasticities for both level of quality and number of vacation days are derived. By applying the model to Israeli data, it was found that about half of the increase in tourism expenditure is due to increases in the level of vacation quality and the other half to changes in the number of vacation days.
The Search for a True Home: a Novel and a Critical Review of Recent Australian Rural Noir
Creators: name: Disher, Garry
Publisher: name: La Trobe
Year: 2021
Subjects: subject: 190402 Creative Writing (incl. Playwriting)
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the Department of Creative Arts and English, College of Arts, Social Sciences and Commerce, La Trobe University, Victoria, Australia.
Factors Explaining Remote Work Adoption in the United States
Creators: name: Hill, Paul A.
name: ,
name: ,
name: ,
name: ,
Publisher: name: Utah State University
Year: 2021

description: The Rural Online Initiative program at Utah State University Extension supported this quantitative study investigating the factors explaining the process of remote work adoption by organizations in the U.S. Given the potential for remote work with respect to technological advances, shifts in traditional work arrangements, and its impact on organizational/operational efficiency, there was a need to investigate how organizational characteristics and leaders’ perceptions of remote work relate to its adoption. This study was guided by Rogers’ theory of diffusion of innovations where research objectives were to (1) determine where organizations range in the innovation-decision process of remote work adoption, (2) categorize organizations’ level of innovativeness with respect to remote work adoption over time, (3) describe how organizational characteristics relate to remote work adoption, (4) describe how the attributes of remote work relate to the likelihood of remote work adoption among organizations, and (5) describe the extent to which organizations have implemented remote work in response to COVID-19 and their favorability towards the practice.
This study followed a non-experimental design with a correlational analysis, collecting cross sectional data from a sample of 1,259 organizational leaders recruited through the use of opt-in panels. Data collection was facilitated by an online survey instrument using Qualtrics software, and principles of the Tailored Design Method were used to substantiate construct and face validity.
Results showed that the practice of remote work has been implemented by most organizations in the U.S. Findings indicated organizational leaders perceived the practice of remote work positively and international organizations were twice as likely to adopt remote work compared to those operating only domestically.
Results also demonstrated how remote work has become a widespread workplace practice that is becoming increasingly standard across organizations in the U.S. Leaders can use the results to develop formal remote work arrangements in their organizations and should consider training existing employees and leaders in the best practices of remote work operations. Findings from this study also provide the Cooperative Extension System with insights into how it should respond to the widespread adoption of remote work with relevant, research-based educational programming in their local communities.
Proton and neutron skins of light nuclei within the Relativistic Mean Field theory
Creators: name: Geng, L. S.
name: Toki, H.
name: Ozawa, A.
name: Meng, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Relativistic Mean Field (RMF) theory is applied to the analysis of ground-state properties of Ne, Na, Cl and Ar isotopes. In particular, we study the recently established proton skin in Ar isotopes and neutron skin in Na isotopes as a function of the difference between the proton and the neutron separation energy. We use the TMA effective interaction in the RMF Lagrangian, and describe pairing correlation by the density-independent delta-function interaction. We calculate single neutron and proton separation energies, quadrupole deformations, nuclear matter radii and differences between proton radii and neutron radii, and compare these results with the recent experimental data.
description: the version to be published in Nuclear Physics A
Bibliotherapy for Depression: Evaluating Cognitive Behavioral Therapy and Acceptance and Commitment Therapy Approaches and Examining the Role of Client Choice
Creators: name: Davis, Carter H.
name: ,
name: ,
name: ,
name: ,
Publisher: name: Utah State University
Year: 2021

description: An alarming number of college students suffer from depression, which is often accompanied by struggles with anxiety and feeling inadequate compared to others (i.e., stigma). Seeing a counselor in person is challenging for many students due to wait times or feeling embarrassed or shameful. Using self-help books may be a helpful alternative for depressed students, but these books are not often tested in formal studies, and getting students to use self-help books over time is also difficult. Therefore, this study examined whether self-help books accessed online could help students with depression. We tested two books which use different approaches to treating depression: Acceptance and Commitment Therapy (ACT) and traditional cognitive behavioral therapy (CBT). While some students were randomly given one of these two books, we also allowed some students to choose themselves which book they wanted to use, since we believed this may help students feel more invested in the treatment and use the book more consistently over time.
We enrolled 142 students in our study, who all read a self-help book over 10 weeks, while completing online surveys that asked about depression, anxiety, and depression-related stigma. We also asked students questions about how they look at their thoughts and feelings, since changes in these perspectives are often related to positive outcomes. Overall, students were satisfied with the book they used, however over half of them dropped out of the study by the 10-week mark. Over the course of the study, rates of depression, anxiety, and depression-related stigma lowered. There were only small differences in outcomes based on which book a student used. However, we found that students who were randomized to a book improved more than students who chose a book, and also read more of their book, which contradicted our predictions.
Our results suggest that distributing online self-help books to college students can help them in managing their depression. The finding that allowing students a choice of book did not lead to them using it more, and in fact led to worse outcomes compared to the students who randomly received a book, suggests that simply providing students with a viable self-help book may be more important than incorporating their individual preferences. Given that we struggled to keep students engaged in our study over time, future research should look into other ways of promoting adherence to self-help treatments for depression.
dimiter-georgiev-thesis.pdf
Creators: name: Dimiter Georgiev
Publisher: name: figshare
Year: 2021
Subjects: subject: 10107 Mathematical Logic, Set Theory, Lattices and Universal Algebra
subject: FOS: Mathematics

description: The scope of the dissertation is to define a deterministic version of the SQEMA algorithm, to show that it still succeeds on the two well-known classes of elementary modal formulas – the Sahlqvist and Inductive classes, and to show some modal and first-order definability results for two classes of Kripke frames, which are interesting in the area of artificial intelligence, namely, the KD45-frames and the Euclidean frames.