cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Derecho a la intimidad vs seguridad ciudadana el caso del tratamiento de datos sensibles recolectados en los sistemas de videovigilancia de los espacios públicos en Bogotá - Colombia
Creators: name: Ramón Cruz, Alba Patricia
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Seguridad ciudadana - Aspectos sociales
subject: Acción civil - Legislación
subject: Innovaciones tecnológicas - Aspectos jurídicos
subject: Derecho a la intimidad
subject: Sistemas de videovigilancia
subject: Principio de libertad
subject: Tratamiento de datos
subject: Datos sensibles

description: El derecho a la intimidad ligado a la vida privada de las personas, se afecta cuando el estado al garantizar la seguridad ciudadana en espacios públicos de ciudades como Bogotá – Colombia, utiliza sistemas de videovigilancia en donde se recolectan datos sensibles sin que se les realice un adecuado tratamiento. Este trabajo comienza contextualizando al lector en temas como derecho a la intimidad, seguridad ciudadana, tratamiento de datos, clasificación de datos, datos sensibles, inteligencia artificial, partiendo desde un panorama amplio como son los conceptos, presentando un marco normativo, plasmando pronunciamientos de la Corte Constitucional que incluye los elementos de un test de proporcionalidad, y el principio de libertad, el cual se incumple al carecer de consentimiento previo del titular del dato, al momento de la recolección de datos sensibles en lugares públicos por parte de los sistemas de videovigilancia que coadyudan a garantizar la seguridad ciudadana, para finalmente presentar como solución el uso de una Inteligencia Artificial IA, como herramienta que sirve para buscar la armonía entre el Derecho a la Intimidad que no es ilimitado y la Seguridad Ciudadana que no es absoluta, ni de inmediata aplicación.
description: The right to privacy linked to people's private lives is affected when the state, when guaranteeing citizen security in public spaces in cities such as Bogotá - Colombia, uses video surveillance systems where sensitive data is collected without an investigation being carried out. adequate treatment. This work begins by contextualizing the reader on topics such as the right to privacy, citizen security, data processing, data classification, sensitive data, artificial intelligence, starting from a broad panorama such as concepts, presenting a regulatory framework, expressing pronouncements of the Constitutional Court that includes the elements of a proportionality test, and the principle of freedom, which is breached by lacking prior consent from the data owner, at the time of the collection of sensitive data in public places by video surveillance systems. that help to guarantee citizen security, to finally present as a solution the use of Artificial Intelligence AI, as a tool that serves to seek harmony between the Right to Privacy, which is not unlimited, and Citizen Security, which is not absolute, nor of immediate application.
The New Life of Feathers
Creators: name: O'Bagy, Madison Bradford
Publisher: name: Utah State University
Year: 2014

description: When a feather is no longer part of a living bird it is, in essence, dead. When I pick it, up it is reborn. My artwork records and constructs these new stories. The story may reflect where and when the feather was found, what I was doing at the time, my thoughts or feelings when I picked it up, or the character found in the feather itself.
To reveal these stories, I paint my three-dimensional feather collection into trompe l'oiel two-dimensional images using watercolors. The qualities of the paint lend themselves beautifully to the loose flowing lines and weightless quality of the feathers. I also incorporate text and other graphic elements including scientific and mathematical references into each work to create the appearance of a scientific journal entry. This draws the viewer in closer to examine the new life of each feather. As we look at scientific items, rather than art objects, the cognitive process changes. Instead of looking only for pleasure or visual stimulation, we look to discover. The combination of the artistic and scientific styles stimulates both cognitive processes so as viewers look at my art they instinctively begin searching for the story of the feathers.
The aspects of the tool kit will be completed in the following order: artist statement, resume, elevator speech, and then the electronic portfolio. I will complete about one aspect per week with the final date of completion being April 11th. The Show for my body of artwork will be March 23-28th The Toolkit and several of the works will be displayed at the Student showcase on April 11th. Dennise Gackstetter has provided me with the information regarding each facet of the tool kit and Chris Terry has provided input and insights into the creation of my artwork. The final product of this project will be a binder with all of the tools I developed, the artwork I have created, and a short reflection on the whole process.
title: Computed tomography in the diagnosis of perforated versus non-perforated acute appendicitis
Creators: name: Chung, Tzu-Yun
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Inflammation
subject: Infection
subject: Acute
subject: Surgery
subject: Complications
subject: CT
subject: Gastrointestinal tract
subject: Emergency
subject: Abdomen

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Background Acute appendicitis is the most common cause for acute abdominal pain requiring surgery.[1] Perforation is reported in 13-20% of patients with acute appendicitis and is associated with increased complication and mortality rates.[1-3]...
A Two-Stage Reconstruction of Microstructures with Arbitrarily Shaped Inclusions
Creators: name: Piasecki, R.
name: Olchawa, W.
name: Frączek, D.
name: Bartecka, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: The main goal of our research is to develop an effective method with a wide range of applications for the statistical reconstruction of heterogeneous microstructures with compact inclusions of any shape, such as highly irregular grains. The devised approach uses multi-scale extended entropic descriptors (ED) that quantify the degree of spatial non-uniformity of configurations of finite-sized objects. This technique is an innovative development of previously elaborated entropy methods for statistical reconstruction. Here, we discuss the two-dimensional case, but this method can be generalized into three dimensions. At the first stage, the developed procedure creates a set of black synthetic clusters that serve as surrogate inclusions. The clusters have the same individual areas and interfaces as their target counterparts, but random shapes. Then, from a given number of easy-to-generate synthetic cluster configurations, we choose the one with the lowest value of the cost function defined by us using extended ED. At the second stage, we make a significant change in the standard technique of simulated annealing (SA). Instead of swapping pixels of different phases, we randomly move each of the selected synthetic clusters. To demonstrate the accuracy of the method, we reconstruct and analyze two-phase microstructures with irregular inclusions of silica in rubber matrix as well as stones in cement paste. The results show that the two-stage reconstruction (TSR) method provides convincing realizations for these complex microstructures. The advantages of TSR include the ease of obtaining synthetic microstructures, very low computational costs, and satisfactory mapping in the statistical context of inclusion shapes. Finally, its simplicity should greatly facilitate independent applications.
description: extended, published version with 7 figures, Supplementary Materials are at the end of the main manuscript
Η γενική ρήτρα περί φοροαποφυγής του άρθρου 38 του ΚΦΔ
Creators: name: Παπαδοπούλου, Αλεξάνδρα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Φοροαποφυγή
Κώδικας Φορολογικής Διαδικασίας
Φοροδιαφυγή
Tax avoidance
Tax Procedure Code
Tax evasion

description: Σκοπός της διατριβής ήταν να καταδείξει τη σημασία της γενικής ρήτρας περί φοροαποφυγής του άρθρου 38 του Κώδικα Φορολογικής Διαδικασίας στην ελληνική έννομη τάξη. Ειδικότερα, η εν λόγω ρήτρα αποτελεί μια τολμηρή για τα δεδομένα της ελληνικής έννομης τάξης νομοθετική παρέμβαση λόγω της γενικότερης νοοτροπίας των φορολογικών αρχών να υιοθετούν την στενή γραμματική ερμηνεία των φορολογικών διατάξεων. Η Ελλάδα ακολουθώντας τις πρωτοβουλίες που έχουν υιοθετηθεί σε ευρωπαϊκό και διεθνές επίπεδο εισήγαγε για πρώτη φορά τη γενική ρήτρα περί φοροαποφυγής το έτος 2013. Αρχικά, στο πρώτο κεφάλαιο της παρούσας εργασίας γίνεται μία απόπειρα προσέγγισης της έννοιας της φοροαποφυγής και της διάκρισής της από συγγενείς έννοιες. Περαιτέρω, στο δεύτερο κεφάλαιο αυτής γίνεται μία συνοπτική αναφορά στο διεθνές σκηνικό και ειδικότερα στις δράσεις του Ο.Ο.Σ.Α., ενώ παρουσιάζονται και οι πρωτοβουλίες της Ε.Ε. σχετικά με το ζήτημα της φοροαποφυγής. Ακολούθως, η εν λόγω εργασία εστιάζει στην αντιμετώπιση του φαινομένου της φοροαποφυγής στην ελληνική έννομη τάξη, συγκεκριμένα, αναλύεται διεξοδικά το άρθρο 38 του ΚΦΔ, ήτοι η νομική φύση της διάταξης, οι προϋποθέσεις της και το πεδίο εφαρμογής της. Επιπλέον, παρουσιάζονται ορισμένες αποφάσεις της Διεύθυνσης Επίλυσης Διαφορών και των δικαστηρίων. Εν κατακλείδι, στην εργασία παρατίθενται ορισμένα συμπεράσματα και καταληκτικές παρατηρήσεις σχετικά με το αντικείμενο της παρούσας εργασίας
description: The purpose of the dissertation was to demonstrate the importance of the general clause on tax avoidance of article 38 of the Tax Procedure Code in the Greek legal system. This clause is a bold legislative intervention for the Greek legislation due to the general mentality of the tax authorities to adopt the strict textual interpretation of the tax provisions. In Greece, following the initiatives adopted at the European and international level, the general clause of tax avoidance was for the first time introduced in 2013. Initially, in the first chapter of this Thesis, an attempt is made to approach the concept of tax avoidance and its distinction from related concepts. Furthermore, in the second chapter there is a brief reference to the international scene and particularly to the actions of the OECD, while the initiatives of the EU are presented concerning the issue of tax avoidance. Then, this dissertation focuses on dealing with the phenomenon of tax avoidance in the Greek legal system. In particular, the article 38 of the Tax Procedure Code is analyzed in detail, namely, the legal nature of the provision, its conditions of application and its scope. In addition, some decisions of the Directorate of Dispute Resolution and courts are presented. In conclusion, the paper presents some concluding remarks on the subject in question
Electromagnetic and gravitomagnetic structure of pions and pion-nucleon scattering
Creators: name: Selyugin, O. V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Taking into account PDFs obtained by various Collaborations, the momentum transfer dependence of GPDs of the pion are obtained. The calculated electromagnetic and gravitomagnetic form factors of the pions and nucleons are used for the description of the pion-nucleon elastic scattering in a wide energy and momentum transfer region with minimum fitting parameters.
description: p.4, 3 figs, talk on the International workshop "Spin in High Energy Physics", Dubna, (2019). arXiv admin note: text overlap with arXiv:1911.09096 and substantial text overlap with arXiv:1711.08205
The nontopological scalar solitons in de Sitter spacetimes
Creators: name: Cheng, Hongbo
name: Gu, Zhengyan
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this letter the nontopological scalar solitons with a self-interaction potential are investigated in a static de Sitter spacetime and their field equations are derived. In particular, with series expansion we prove analytically the nonexistence of the solutions under the boundary conditions, which show that some nontopological solitons can not live in the background.
Comparing Trophic Level Position of Invertebrates in Fish and Fishless Lakes in Arctic Alaska
Creators: name: Fisher, Katie
Publisher: name: Utah State University
Year: 2013

description: Arctic lakes are likely very sensitive to the effects of climate change. Thus it is important to understand the current food web dynamics and energy flow within these lakes, to better understand how they will change in the future due to the effects of a rapidly changing climate. In order to contribute to this understanding, my project consists of an analysis of stable isotopes of carbon (delta 13 C) and nitrogen (delta 15 N) from invertebrates among fish and fishless lakes in arctic Alaska, to compare their trophic level positions and primary energetic sources. I collected pelagic invertebrates from 5 different lakes, 2 of which have resident fish populations and 3 of which are fishless. I analyzed and compared the stable isotope results with isotopic data collected from other related projects and one additional fish-inhabited lake. With this analysis, I created food webs to: 1) assign trophic positions to each species in each lake and compare those positions across lakes; and 2) assess the potential effect fish predation has on pelagic invertebrate community structure. I hypothesized that fish predation will determine zooplankton community structure and alter trophic linkages. This was proven to be true in the case of one fishless lake, whose predacious zooplankton's trophic position was the same as the fish in the other lakes. However, for the two other fishless lakes, the trophic position of the predacious and herbivorous zooplankton decreased. The decrease was possibly due to much smaller sizes of the fishless lake, or the unexamined presence of another predatory invertebrate ..
Global asymptotic solutions for relativistic MHD jets and winds
Creators: name: Heyvaerts, J.
name: Norman, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider relativistic, stationary, axisymmetric, polytropic, unconfined, perfect MHD winds, assuming their five lagrangian first integrals to be known. The asymptotic structure consists of field-regions bordered by boundary layers along the polar axis and at null surfaces, such as the equatorial plane, which have the structure of charged column or sheet pinches supported by plasma or magnetic poloidal pressure. In each field-region cell, the proper current (defined here as the ratio of the asymptotic poloidal current to the asymptotic Lorentz factor) remains constant. Our solution is given in the form of matched asymptotic solutions separately valid outside and inside the boundary layers. An Hamilton-Jacobi equation, or equivalently a Grad-Shafranov equation, gives the asymptotic structure in the field-regions of winds which carry Poynting flux to infinity. An important consistency relation is found to exist between axial pressure, axial current and asymptotic Lorentz factor. We similarly derive WKB-type analytic solutions for winds which are kinetic-energy dominated at infinity and whose magnetic surfaces focus to paraboloids. The density on the axis in the polar boundary column is shown to slowly fall off as a negative power of the logarithm of the distance to the wind source. The geometry of magnetic surfaces in all parts of the asymptotic domain, including boundary layers, is explicitly deduced in terms of the first-integrals.
description: 39 pages, 7 figures, accepted for publication in ApJ
Berry Phase in Quantum Field Theory: Diabolical Points and Boundary Phenomena
Creators: name: Hsin, Po-Shen
name: Kapustin, Anton
name: Thorngren, Ryan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study aspects of Berry phase in gapped many-body quantum systems by means of effective field theory. Once the parameters are promoted to spacetime-dependent background fields, such adiabatic phases are described by Wess-Zumino-Witten (WZW) and similar terms. In the presence of symmetries, there are also quantized invariants capturing generalized Thouless pumps. Consideration of these terms provides constraints on the phase diagram of many-body systems, implying the existence of gapless points in the phase diagram which are stable for topological reasons. We describe such diabolical points, realized by free fermions and gauge theories in various dimensions, which act as sources of "higher Berry curvature" and are protected by the quantization of the corresponding WZW terms or Thouless pump terms. These are analogous to Weyl nodes in a semimetal band structure. We argue that in the presence of a boundary, there are boundary diabolical points---parameter values where the boundary gap closes---which occupy arcs ending at the bulk diabolical points. Thus the boundary has an "anomaly in the space of couplings" in the sense of Córdova et al. Consideration of the topological effective action for the parameters also provides some new checks on conjectured infrared dualities and deconfined quantum criticality in 2+1d.
description: 21+7 pages, 4+2 figures
Recovering the Structural Observability of Composite Networks via Cartesian Product
Creators: name: Doostmohammadian, Mohammadreza
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Networking and Internet Architecture (cs.NI)
subject: Social and Information Networks (cs.SI)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Observability is a fundamental concept in system inference and estimation. This paper is focused on structural observability analysis of Cartesian product networks. Cartesian product networks emerge in variety of applications including in parallel and distributed systems. We provide a structural approach to extend the structural observability of the constituent networks (referred as the factor networks) to that of the Cartesian product network. The structural approach is based on graph theory and is generic. We introduce certain structures which are tightly related to structural observability of networks, namely parent Strongly-Connected-Component (parent SCC), parent node, and contractions. The results show that for particular type of networks (e.g. the networks containing contractions) the structural observability of the factor network can be recovered via Cartesian product. In other words, if one of the factor networks is structurally rank-deficient, using the other factor network containing a spanning cycle family, then the Cartesian product of the two nwtworks is structurally full-rank. We define certain network structures for structural observability recovery. On the other hand, we derive the number of observer nodes--the node whose state is measured by an output-- in the Cartesian product network based on the number of observer nodes in the factor networks. An example illustrates the graph-theoretic analysis in the paper.
MODELING LOCAL FISCAL BEHAVIOR: THE RESPONSE OF ORGEON COUNTRY GOVERNMENTS TO MENTAL HEALTH GRANTS
Creators: name: Webber, Bruce A.
name: Savage, John F.
name: Webber, Bruce A.
name: Savage, John F.
Publisher: name: Unknown
Year: 1977
Subjects: Health Economics and Policy

description: Regression results from a theoretically based model of county spending suggest: (1) Oregon counties are spending more than is necessary to completely use available matching funds under existi.ng closed-ended matching mental health grant programs; and (2) marginal changes on the grant ceiling might stimulate locally financed mental health expenditures whereas marginal changes in the matching rate would likely not.
Factors Influencing Physician Location Decisions in Oklahoma
Creators: name: Salkin, Marcia Huddleston
name: Salkin, Michael S.
name: Salkin, Marcia Huddleston
name: Salkin, Michael S.
Publisher: name: Unknown
Year: 1977
Subjects: Health Economics and Policy

description: Research into the factors attracting physicians to practice in a given community has increased in volume in recent years. This interest is the result of a growing awareness of a number of things. Some are: (1) the importance of health in determining an individual's ability to function on a day to- day basis; (2) the key role played by the physician in any individual's access to basic medical services; (3) the lack of access to basic medical services suffered by an ever increasing portion of the population as the result of the concentration of physicians in large urban centers. This study was the result of an attempt to re-examine the factors influencing the location decisions of physicians from a slightly different standpoint. Its objectives were: (1) to determine those factors which attract a physician to a given community; (2) to determine whether or not the factors which attract a physician to a community differ with the type of physician; (3) to examine the policy implications of the results for the study area, Oklahoma, and other states with similar distributions of physicians.
Tournament Directed Graphs
Creators: name: Mousley, Sarah Camille
Publisher: name: Utah State University
Year: 2013

description: Paired comparison is the process of comparing objects two at a time. A tournament in Graph Theory is a representation of such paired comparison data. Formally, an n-tournament is an oriented complete graph on n vertices; that is, it is the representation of a paired comparison, where the winner of the comparison between objects x and y (x and y are called vertices) is depicted with an arrow or arc from the winner to the other.
In this thesis, we shall prove several results on tournaments. In Chapter 2, we will prove that the maximum number of vertices that can beat exactly m other vertices in an n-tournament is min{2m + 1,2n - 2m - 1}. The remainder of this thesis will deal with tournaments whose arcs have been colored. In Chapter 3 we will define what it means for a k-coloring of a tournament to be k-primitive. We will prove that the maximum k such that some strong n-tournament can be k-colored to be k-primitive lies in the interval [(n-12), (n2) - [n/4]). In Chapter 4, we shall prove special cases of the following 1982 conjecture of Sands, Sauer, and Woodrow from [14]: Let T be a 3-arc-colored tournament containing no 3-cycle C such that each arc in C is a different color. Then T contains a vertex v such that for any other vertex x, x has a monochromatic path to v.
ECONOMIC FEASIBILITY OF SUPPLEMENTAL IRRIGATION IN CENTRAL MISSOURI
Creators: name: Schwinke, Carl
name: Schwinke, Carl
Publisher: name: Unknown
Year: 1977
Subjects: Land Economics/Use

description: Today, throughout the agricultural community of central Missouri, a trend is taking place which could substantially effect, or alter investments, corn yields and prices, and long range planning for its farmers. Drought conditions over most of this gentle, sloping land have triggered a search for alternatives to maintain high levels of productivity. Rather than turn to dry land farming techniques, sup}Jle:1ental irrigation has been used extensively in reducing the risk of limited rainfall when producing corn or soybeans. It is through this decision to irrigate that necessitates a carefully planned procedure to properly examine all aspect:, of this large investment in capital and equity. As experienced farm rangers can readily testify, a certain amount of "pencil-pushing" or preplanning must be performed in order to insure profitabilty and feasibility. Premature decisions with insufficient data to draw conclusions from could lead to a very slow and unpleasant financial recovery. However, with proper planning and sound, rational judgement, intelligent choices can be made if supplemental irrigation yields a profitable and practical alternative to dryland farming methods. It is the purpose of this paper to present a method by which the farm manager may analyze his potential to use supplemental irrigation as a risk reduction practice. By evaluating the major facets, a clearer understanding is given of its personal economic impacts.
Hospital to Home Transitional Care : Advanced Practice Nurses Impact on Cardiovascular Patient Outcomes
Creators: name: Mailey, Melissa
Publisher: name: The University of British Columbia
Year: 2017

description: The aim of this culminating project was to examine the available evidence on adults following an acute cardiac event (ACE) to determine whether transitional care provided by Advanced Practice Nurses (APN), namely Nurse Practitioners (NP), affects overall cardiovascular (CV) patient outcomes. An extensive literature review was undertaken by inputting a combination of keywords into the Web of Science and Cumulative Index to Nursing and Allied Health Literature databases. Critical examination of relevant primary studies revealed healthcare resource utilization and mortality, subjective patient outcomes, and financial analysis, as major outcomes evaluated. The main findings of these studies suggested that APN transitional care from hospital to home could improve healthcare resource utilization and mortality, subjective patient outcomes, and healthcare costs within the adult CV population. After reviewing the existing literature, a project charter was created based on the identified research needs in this area of inquiry. This charter was directed towards urban western Canadian Heart Centers to determine the most effective duration of NP transitional care following an acute cardiac event (ACE) to decrease time to first re-hospitalization, re-hospitalization rates, and mortality, as well as explore CV patients experiences of NP transitional care, CV disease, comprehension of their diagnosis and future outcomes, and thoughts regarding management plans. Further research is necessary to ensure optimal transitional care and long-term outcomes for CV patients and healthcare systems, and to identify how the NP transitional care role impacts patients’ CV experience following an ACE.
El derecho fundamental a la protección de datos personales en Colombia : un análisis del artículo 15 de la constitución política
Creators: name: Osuna Carreño, Alejandro José
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Bienes públicos - Legislación
subject: Derecho a la privacidad - Legislación
subject: Innovaciones tecnológicas - Aspectos jurídicos
subject: Dato personal
subject: Tratamiento
subject: Autodeterminación informativa
subject: Protección de datos
subject: Habeas data

description: El tratamiento de datos personales se ha convertido en una actividad extensamente utilizada para la provisión de bienes y servicios en todo el mundo, incluida Colombia. Dicha actividad trae aparejados beneficios para los diferentes actores involucrados, y riesgos para los titulares de los datos, siendo estos riesgos muchas veces inadvertidos, difícilmente detectables y potencialmente graves. En consecuencia, este documento busca explorar cuáles han sido los derechos que han protegido a las personas contra los peligros que supone el tratamiento de sus datos personales, y cómo estos derechos se han manifestado en Colombia.
description: The processing of personal data has become a widespread activity in the provision of goods and services throughout the world, including Colombia. This activity brings with it benefits for the different actors involved, and risks for the data subjects, which are often unnoticed, difficult to detect and potentially serious. Consequently, this paper seeks to explore which rights have protected individuals against the dangers posed by the processing of their personal data, and how these rights have manifested themselves in Colombia.
title: Renal Cell Carcinoma Cryoablation: An Australian Experience
Creators: name: Balamon, Paul
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Cancer
subject: Ablation procedures
subject: CT
subject: Oncology
subject: Kidney
subject: Interventional non-vascular

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Aims and objectives To describe our experience using percutaneous cryoablation to treat renal cell carcinomas in poor surgical candidates or where nephron sparing is a priority. Analyse the initial recurrence rates after 1-year of follow-up with...
title: A study of coexistence of gastropods in the River Hull system
Creators: name: Storey, Robert Albert Sill
Publisher: name: The Open University
Year: 1982

description: A qualitative study conducted on the gastropod snails in the River Hull system provided evidence of spatial separation of some species. Computer analysis showed that the snails could be used to classify stretches of the river. Unifying environmental characteristics of each site were then used to identify discontinuities between snail groups. From this evidence, temporary drying-up and direct or indirect influence of flow appeared to affect snail occurrence. At the tidal limit, the wide species diversity was found to be a temporary phenomenon, for there appeared to be a 'rock' and ’weed' community which were seasonally displaced probably due directly to the flow over a weir. The 'rock' species were found to possess differences in microdistribution pattern since they were selective with regard to the size of stone, its aspect and its distance from the weir. The 'weed' species showed relatively little separation with regard to plant quality, but there was a seasonal distinction between the pulmonates and the prosobranchs. There was some evidence, during periods of spatial overlap, of resource partitioning in their diets also. The general observations that food in the gut reflected that which was available on the substratum suggested either a broad diet or possibly substratum selection. There were differences both in radula structure and application which corresponded to substratum differences, and different diurnal activity patterns were also demonstrated. Although it is possible that predation, competition with other invertebrates and other factors could have been instrumental in limiting population size, there is ample evidence from this study that sufficient differences existed along the niche dimensions of space, nutrition and time, to have reduced the degree of overlap between species to a level where competitive exclusion would not occur, even with large population sizes.
Observations of millisecond X-ray pulsars
Creators: name: Wijnands, Rudy
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I present an observational review of the five accretion-driven millisecond X-ray pulsars currently known, focusing on the results obtained with the Rossi X-ray Timing Explorer (RXTE) satellite. A prominent place in this review is given to the first such system discovered, SAX J1808.4-3658. Currently four outbursts have been detected from this source, three of which have been studied using RXTE. This makes this source the best studied example of all accretion-driven millisecond pulsars. Its October 2002 outburst is of particular interest because of the discovery of kilohertz quasi-periodic oscillations and burst oscillations during its thermonuclear X-ray bursts. The other four accreting millisecond pulsars were discovered within the last two years and only limited results have been published so far. A more extended review can be found at http://zon.wins.uva.nl/~rudy/admxp/
description: To appear in the proceedings of "X-ray Timing 2003: Rossi and Beyond", eds. P. Kaaret, F. K. Lamb, & J. H. Swank (Melvill, NY; AIP). A more extended version of this review can be found at http://zon.wins.uva.nl/~rudy/admxp/
title: Studies on the ultrastructure of the pituitary of a non parasitic lamprey Lampetra planeri throughout the larval, metamorphosing and adult stages
Creators: name: Thoday, Anne
Publisher: name: The Open University
Year: 1988

description: A comparative study of the fine structure of the pituitary of a non-parasitic lamprey, Lampetra planeri has been made during its larval, metamorphosing and adult stages. The pro-adenohypophysis (rostral pars distalis) is the first region to differentiate cytologically and already in the large ammocoete contains well developed basophils. These cells increase in number and in the density of their granulation during the pre-metamorphic phase, but the granulation tends to become sparser in the course of metamorphosis, finally increasing once again to reach a maximum in the adult stage. The diameter of the granules shows an increase from larval to adult stages. In the meso-adenohypophysis (proximal pars distalis) cellular differentiation accompanied by an overall growth of the lobe only begins at metamorphosis and is due mainly to an increase in cytoplasmic volumes. Basophils first appear in considerable numbers only during metamorphosis and at this stage are distinguished from those of the pro-adenohypophysis by their prominent cytoplasmic whorls of endoplasmic reticulum and the distinctly smaller size and relative sparsity of their secretory granules. Both lobes also contain chromophobes, some small and undifferentiated and others, ’active' or granular types with a few secretory granules, smaller than those of the basophils. These chromophobes are only numerous in the meso-adenohypophysis in metamorphic and pre-metamorphic stages. Stellate cells with either light or dark cytoplasm are present throughout the life cycle, although the latter are most conspicuous in the adult where they show evidence of phagocytotic activity. The meta-adenohypophysis (pars intermedia) shows overall growth and an increase in the numbers of granulated cells in the pre-metamorphic stages. These cells are only sparsely granulated, with conspicuous whorls of endoplasmic reticulum, but the granules increase in size from larval to adult stages. In the neurohypophysis the pre-metamorphic, metamorphic and adult stages show evidence of increased activity involving the increased depth of the fibre layer, the greater degree of neurosecretory granulation, the appearance of Herring bodies, the wider distribution of neurosecretory endings and indications of activity at the boundary between the neural lobe and the meta-adenohypophysis. Measurements of neurosecretory granules suggest the presence of four size classes of which the largest (Class IV) are absent in the larval stage. Comparisons have been made between the cytology of the pituitary of L. planeri and that of comparable stages of parasitic lampreys, especially the closely related river lamprey, L. fluviatills. The possible functional implications of the present studies have been considered against the background of recent findings based on the application of immunocytochemical techniques to the pituitaries of other species.
Sustainable vector/pest control using the permanent Sterile Insect Technique
Creators: name: Anguelov, R.
name: Dumont, Y.
name: Yatat, V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Vector/Pest control is essential to reduce the risk of vector-borne diseases or losses in crop fields. Among biological control tools, the sterile insect technique (SIT), is the most promising one. SIT control generally consists of massive releases of sterile insects in the targeted area in order to reach elimination or to lower the pest population under a certain threshold. The models presented here are minimalistic with respect to the number of parameters and variables. The first model deals with the dynamics of the vector population while the second model, the SIT model, tackles the interaction between treated males and wild female vectors. For the vector population model, the elimination equilibrium $\mathbb{0}$ is globally asymptotically stable when the basic offspring number, $\mathcal{R}$, is lower or equal to one, whereas $\mathbb{0}$ becomes unstable and one stable positive equilibrium exists, with well-determined basins of attraction, when $\mathcal{R}>1$. For the SIT model, we obtain a threshold number of treated male vectors above which the control of wild female vectors is effective: the massive release control. When the amount of treated male vectors is lower than the aforementioned threshold number, the SIT model experiences a bistable situation involving the elimination equilibrium and a positive equilibrium. However, practically, massive releases of sterile males are only possible for a short period of time. That is why, using the bistability property, we develop a new strategy to maintain the wild population under a certain threshold, for a permanent and sustainable low level of SIT control. We illustrate our theoretical results with numerical simulations, in the case of SIT mosquito control.
A strong dissipative inflationary model
Creators: name: Bellini, Mauricio
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The dynamics of a single scalar field which describes a second order phase transition is considered taking into account the thermal effects in the high temperature limit. I conclude that thermal effects play a very important role during inflation and do not must to be ignored in models for the early universe. At the end of inflation thermal fluctuations are more important than quantum fluctuations, due to the fact that $T > H_c$.
description: published version
Η λογική της ελληνικότητας στο έργο του Οδυσσέα Ελύτη
Creators: name: Σουγκάρη, Ολυμπία Θεμιστοκλή
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Ελύτης
ελληνικότητα
διαφάνεια
Elytis
Greekness
diaphaneity

description: Στην παρούσα Μεταπτυχιακή Διπλωματική εργασία επιχειρώ να συνδέσω τη σκέψη του Οδυσσέα Ελύτη με δύο κεντρικές έννοιες• την ελληνικότητα και τη διαφάνεια. Με κεντρικό άξονα το θεμελιακό στοιχείο της ελληνικότητας θα αναφερθώ σε κεντρικές θεματικές ενότητες. Η ελληνική γλώσσα αποθεώνεται από τον Ελύτη ως προνομιακή, ενώ η ιστορία αποτελεί σύμφωνα με τον ποιητή πολύτιμη πηγή στοιχείων για την ελληνική ιδιοσυγκρασία, όταν όμως αναβαθμίζεται και ξαναγράφεται με όρους διαφάνειας. Επίσης, το ελληνικό τοπίο επηρεάζει όχι μόνο τη διαμόρφωση της γλώσσας, αλλά και την κίνηση της εσωτερικής ζωής του ποιητή, οδηγώντας τα πράγματα σε μία προνομιακή καθαρότητα. Η γεωγραφική θέση της Ελλάδας δεν είναι τυχαία, αφού στον ελληνικό τόπο συνενώνονται δύο δίπολα˙ συναίσθημα – λογική από τη Δύση και ιερότητα – αισθησιασμός από την Ανατολή, στοιχεία που μπορούν από κοινού να ενεργοποιήσουν αυτό το ιδιαίτερο αινιγματικό ελληνικό στοιχείο. Τέλος, στόχος μου είναι να αναλύσω φιλοσοφικά τη σκέψη του Οδυσσέα Ελύτη, να τη συνδέσω με τη μεταφυσική και τη στοχαστική φαντασία έτσι, ώστε να έρθουμε πιο κοντά στην οντολογική μας καταγωγή και την ελληνική μας φύση. Όλες οι παραπάνω θεματικές αναλύονται με κεντρικές αναφορές στα δοκιμιακά έργα του Οδυσσέα Ελύτη (Ανοιχτά Χαρτιά, Εν Λευκώ), καθώς και στο μεγαλειώδες πολυσύνθετο έργο, Το Άξιον Εστί
description: The present Postgraduate essay attempts to associate Odysseus Elytis’s way of thinking with two foundational concepts; Greekness and Diaphaneity. Based on the fundamental element of Greekness, I will refer to central thematic issues. The Greek language is deified by Odysseus Elytis, while history, according to the poet, is an essential tool in the definition of the Greek mentality, yet the poet upgrades and rewrites history in terms of diaphaneity. In addition, the Greek landscape affects not only the form of the Greek language, but also the activity of the poet’s inner life, leading all components to a preferential clarity. Greece’s geographical location is not coincidental, as in the Greek area two dipoles are connected and most frequently they collide with each other; emotion – logic from the West and sanctity – lusciousness from the East, elements which are most likely to activate that particular enigmatic Greek element. Finally, my objective is to philosophically analyze Odysseus Elytis’s way of thinking and associate it with metaphysics and cogitative fantasy so as to get closer to our ontological origin and our Greek nature. All themes above are analyzed referring basically to Elytis’s essays (Open Papers, Carte Blanche), and also to the monumental and complex work, named The Axion Esti.
description: Σε συνεργασία με: Φιλοσοφίας, Παιδαγωγικής και Ψυχολογίας (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών); Σε συνεργασία με: Φιλοσοφικών και Κοινωνικών Σπουδών (Πανεπιστήμιο Κρήτης)
Local and Reversible Change of the Reconstruction on Ge(001) Surface between c(4x2) and p(2x2) by Scanning Tunneling Microscopy
Creators: name: Takagi, Yasumasa
name: Yoshimoto, Yoshihide
name: Nakatsuji, Kan
name: Komori, Fumio
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The reconstruction on Ge(001) surface is locally and reversibly changed between c(4x2) and p(2x2) by controlling the bias voltage of a scanning tunneling microscope (STM) at 80K. It is c(4x2) with the sample bias voltage V_b =< -0.7V. This structure can be kept with V_b =< 0.6V. When V_b is higher than 0.8V during the scanning, the structure changes to p(2x2). This structure is then maintained with V_b >= - 0.6V. The observed local change of the reconstruction with hysteresis is ascribed to inelastic scattering during the electron tunneling in the electric field under the STM-tip.
description: 4 pages, 4 figures, submitted to Phys. Rev. Lett
Διχόνοιες των Ελλήνων και η λατρεία της Ομόνοιας: η κλασική αντίληψη της συναίνεσης και η αναβίωσή της στη ρωμαϊκή ρητορική
Creators: name: Πατέρα, Ευαγγελία Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Ομόνοια
Ρητορική
Ελληνορωμαϊκός πολιτισμός
Homonia
Rhetoric
Greco-Roman culture

description: Η μελέτη αυτή παρουσιάζει μια διακειμενική προσέγγιση των ρητορικών λόγων του Δίωνος Χρυσοστόμου, Πρὸς Νικομηδεῖς περὶ ὁμονοίας τῆς πρὸς Νικαεῖς και του Αίλιου Αριστείδη, Περὶ τῆς Ὁμονοίας ταῖς πόλεσι. Πυρήνας της μελέτης είναι η ομόνοια ως πολιτική αρετή και δορυφόροι της είναι οι ελληνικές πόλεις υπό τη ρωμαϊκή κυριαρχία, καθώς και οι τοπικές ελίτ που εκπροσωπούνται από τους ρήτορες της Δεύτερης Σοφιστικής. Η πολιτισμική ταυτότητα και η ελληνική κληρονομιά των ρητόρων προβάλλεται ως εχέγγυο για την πολιτική αυτονομία των Ελλήνων. Στο πολυπολιτισμικό περιβάλλον της Ρωμαϊκής Αυτοκρατορίας ο ελληνικός πολιτισμός αναδείχθηκε κυρίαρχος και η ιστορία του λειτούργησε ως ενοποιητικό μοντέλο
description: This thesis presents an intertextual approach to the rhetorical speeches of Dion Chrysostom, Πρὸς Νικομηδεῖς περὶ ὁμονοίας τῆς πρὸς Νικαεῖς and Ailius Aristides, Περὶ τῆς Ὁμονοίας ταῖς πόλεσι. The core of this study is the homonoia as a political virtue, the Greek cities under Roman rule, as well as the local elites represented by the orators of the Second Sophistic. The cultural identity and the heritage of Greece of the orators are a guarantee for the political autonomy of the Greeks. In the multicultural environment of the Roman Empire, the culture of Greece became dominant and its history functioned as a unifying model
Modulation of Noise in Submicron GaAs/AlGaAs Hall Devices by Gating
Creators: name: Li, Yongqing
name: Ren, Cong
name: Xiong, Peng
name: von Molnar, Stephan
name: Ohno, Yuzo
name: Ohno, Hideo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a systematic characterization of fluctuations in submicron Hall devices based on GaAs/AlGaAs two-dimensional electron gas heterostructures at temperatures between 1.5 K to 60 K. A large variety of noise spectra, from 1/f to Lorentzian, are obtained by gating the Hall devices. The noise level can be reduced by up to several orders of magnitude with a moderate gate voltage of 0.2 V, whereas the carrier density increases less than 60% in the same range. The significant dependence of the Hall noise spectra on temperature and gate voltage is explained in terms of the switching processes related to impurities in n-AlGaAs.
description: 5 pages, 4 figs
IMPACT OF GENERIC ADVERTISING ON THE IMPORT DEMAND FOR U.S. FROZEN CONCENTRATED ORANGE JUICE IN CANADA
Creators: name: Chern, Wen S.
name: Chern, Wen S.
Publisher: name: Unknown
Year: 1975
Subjects: subject: Research Methods/ Statistical Methods
subject: arithmetic lag
subject: geometric lag
subject: advertising elasticity

description: The geometric lag model is shown to be superior to the arithmetic lag model for estimating the impact of citrus advertising. The results show that both short-run and long-run advertising elasticities are less than unity at current expenditures. The study concludes that more spending is necessary for the citrus advertising activities to be profitable.
Corporations: Manufacturing Psychopaths?
Creators: name: Hansen, Dallen Stanley
Publisher: name: Utah State University
Year: 2013

description: The impact & harms of white-collar offenses (corporate crime) on society are severe, & cost society many times what violent offenses do. I argue the occurrence of corporate crime is a function of corporate culture and environment (Organizational Strain). According to some analyses, there is an increased prevalence of psychopathic personalities in corporate management positions. To study this, I analyzed data collected from 203 managers & executives at seven corporations with employees numbering 150 to 40,000 - using the Psychopathic Personality Inventory Checklist-Revised (PCL-R). I then conducted content analysis on independent biographies of four prominent, criminal CEO's to track the emergence of psychopathic personality traits. I posit that corporations not only attract primary psychopaths, but may foster the emergence of psychopathic traits in non-psychopaths as well (i.e. "secondary psychopathy"). My research focuses on the emergence of psychopathic traits in corporate management (secondary psychopathy), & suggests a theoretical basis for this happening.