cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Countering DoS Attacks With Stateless Multipath Overlays
Creators: name: Stavrou, Angelos
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2005
Subjects: Computer science

description: Indirection-based overlay networks (IONs) are a promising approach for countering distributed denial of service (DDoS) attacks. Such mechanisms are based on the assumption that attackers will attack a fixed and bounded set of overlay nodes causing service disruption to a small fraction of the users. In addition, attackers cannot eaves-drop on links inside the network or otherwise gain information that can help them focus their attacks on overlay nodes that are critical for specific communication flows. We develop an analytical model and a new class of attacks that considers both simple and advanced adversaries. We show that the impact of these simple attacks on IONs can severely disrupt communications. We propose a stateless spread-spectrum paradigm to create per-packet path diversity between each pair of end-nodes using a modified ION access protocol. Our system protects end-to-end communications from DoS attacks without sacrificing strong client authentication or allowing an attacker with partial connectivity information to repeatedly disrupt communications. Through analysis, we show that an Akamai-sized overlay can withstand attacks involving over 1.3M "zombie" hosts while providing uninterrupted end-to-end connectivity. By using packet replication, the system can resist attacks that render up to 40% of the nodes inoperable. Surprisingly, our experiments on PlanetLab demonstrate that in many cases end-to-end latency decreases when packet replication is used, with a worst-case increase by a factor of 2.5. Similarly, our system imposes less than 15% performance degradation in the end-to-end throughput, even when subjected to a large DDoS attack.
title: MRI maze solving of perianal fistulas for beginners
Creators: name: Kavelj, Ivana
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Inflammation
subject: Fistula
subject: Abscess
subject: Structured reporting
subject: Diagnostic procedure
subject: Complications
subject: MR-Diffusion/Perfusion
subject: MR
subject: Gastrointestinal tract
subject: Colon
subject: Abdomen
subject: GI Tract
subject: Not applicable
subject: Performed at one institution

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: 1. to repeat anal canal anatomy in details, 2. to get familiar with perianal fistula classifications, complexity, complications and its implication for therapy through pictorial MR review, 3. to accentuate mandatory findings that surgeon expect us...
Lack of Inflated Radii for Kepler Giant Planet Candidates Receiving Modest Stellar Irradiation
Creators: name: Demory, Brice-Olivier
name: Seager, Sara
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The most irradiated transiting hot Jupiters are characterized by anomalously inflated radii, sometimes exceeding Jupiter's size by more than 60%. While different theoretical explanations have been applied, none of them provide a universal resolution to this observation, despite significant progress in the past years. We refine the photometric transit light curve analysis of 115 Kepler giant planet candidates based on public Q0-Q2 photometry. We find that 14% of them are likely false positives, based on their secondary eclipse depth. We report on planet radii vs. stellar flux. We find an increase in planet radii with increased stellar irradiation for the Kepler giant planet candidates, in good agreement with existing hot Jupiter systems. We find that in the case of modest irradiation received from the stellar host, giant planets do not have inflated radii, and appear to have radii independent of the host star incident flux. This finding suggests that the physical mechanisms inflating hot Jupiters become ineffective below a given orbit-averaged stellar irradiation level of ~2 10^8 erg s^-1 cm^-2.
description: 5 pages, 1 figure and 1 table. Accepted for publication in ApJS on October 11, 2011
Additional file 8 of Rosaceae, Brassicaceae and pollen beetles: exploring relationships and evolution in an anthophilous beetle lineage (Nitidulidae, Meligethes-complex of genera) using an integrative approach
Creators: name: Liu, Meike
name: Huang, Min
name: Cline, Andrew Richard
name: Mancini, Emiliano
name: Scaramuzzi, Andrea
name: Paradisi, Simone
name: Audisio, Paolo
name: Badano, Davide
name: Sabatelli, Simone
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 8 The Maximum Likelihood (ML) tree of Meligethes-complex based on morphological data, performed by IQ-TREE using default settings.
Essays on Integration Challenges and Impacts of FSA Transfers in MNEs
Creators: name: Zeng, Rong
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Education--Business
subject: Business Administration

description: This dissertation includes four essays on how multinational enterprises (MNEs) develop competitive advantage by tackling control and coordination challenges and transfer of firm-specific advantages (FSAs). Essay 1 uses meta-analytic methods to synthesize and evaluate the facilitating roles of three integration mechanisms. It also investigates how different dimensions of knowledge influence the role of integration mechanisms in transferring knowledge. It provides preliminary evidence that there may exist substitution effects between different mechanisms. Essay 2 advances the control literature by nuancing the complementary versus substitutive effects among different control mechanisms. It identifies that two commonly-used perspectives in discussing the complementary versus substitutive effects debate result in different conclusions in some situations. It further identifies the boundary conditions for the different conclusions: institutional factors and organizational outcomes. Both Essay 1 and Essay 2 give us a better picture of the use and effectiveness of various integration mechanisms, which does not have inconsistent findings in the current literature. The findings not only contribute to the MNE control literature but also to the control literature in general management. Essay 3 and Essay 4 and examine an under-researched empirical context that is directly influenced by the shifting foreign direct investment trends. It largely addresses the issue of differential value creation by acquirer origins in target firms in developed countries at different stages. Instead of adopting the MNE-centric perspective, both the two essays incorporate the local firm perspective. Essay 3 uses acquisition premiums received by targets to investigate the target investors’ perception of firm-specific advantages by state-owned acquirers compared to private acquirers at the time of the deal announcement. It extends the mainstream international business theory by providing empirical evidence for the application of internalization theory to state-owned enterprises and local firm perspective. Essay 4, set in the oil and gas industry, examines the differential impact of varying acquirer origins on post-acquisition productivity in partially-acquired firms in North America. The findings demonstrate that multinationals from less-developed countries must ensure that they balance the need for control (equity) with the need to access local complementary resources in target firms located in developed host countries.
Entanglement without nonlocality
Creators: name: Horsman, Dominic
name: Vedral, Vlatko
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the characterization of entanglement from the perspective of a Heisenberg formalism. We derive an original two-party generalized separability criteria, and from this describe a novel physical understanding of entanglement. We find that entanglement may be considered as fundamentally a local effect, and therefore as a separable computational resource from nonlocality. We show how entanglement differs from correlation physically, and explore the implications of this new conception of entanglement for the notion of classicality. We find that this understanding of entanglement extends naturally to multipartite cases.
description: 9 pages. Expanded introduction and sections on physical entanglement and locality
Segre maps and entanglement for multipartite systems of indistinguishable particles
Creators: name: Grabowski, Janusz
name: Kus, Marek
name: Marmo, Giuseppe
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81P40, 81P16, 15A69, 81R05

description: We elaborate the concept of entanglement for multipartite system with bosonic and fermionic constituents and its generalization to systems with arbitrary parastatistics. The entanglement is characterized in terms of generalized Segre maps, supplementing thus an algebraic approach to the problem by a more geometric point of view.
description: 16 pages, the version to appear in J. Phys. A. arXiv admin note: text overlap with arXiv:1012.0758
title: The usefulness of ultrasound in the evaluation of central catheters in pediatrics. Where and how will it be?
Creators: name: Averanga Ticona, Gustavo
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Image verification
subject: Catheters
subject: Ultrasound
subject: Vascular
subject: Paediatric
subject: Management
subject: Paediatric

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Learnthe main indications of ultrasound in the evaluation of central catheters. Illustrate with images of our Institution, usual and unusual ultrasound findings in the evaluation of central catheters. Identify the advantages and disadvantages in...
A Pay-per-Use DoS Protection Mechanism For the Web
Creators: name: Stavrou, Angelos
name: Ioannidis, John
name: Keromytis, Angelos D.
name: Misra, Vishal
name: Rubenstein, Daniel Stuart
Publisher: name: Columbia University
Year: 2004
Subjects: Computer science

description: Internet service providers have resisted deploying Denial-of-Service (DoS) protection mechanisms despite numerous research results in the area. This is so primarily because ISPs cannot directly charge users for the use of such mechanisms, discouraging investment in the necessary infrastructure and operational support. We describe a pay-per-use system that provides DoS protection for web servers and clients. Our approach is based on WebSOS, an overlay-based architecture that uses reverse Turing tests to discriminate between humans and automated processes that are part of an attack. We extend WebSOS with a credential-based micropayment scheme that combines access control and payment authorization in one operation. Contrary to WebSOS, we use Graphic Turing Tests (GTTs) to prevent malicious code, such as a worm, from using a users' micropayment wallet. Our architecture allows ISPs to accurately charge web clients and servers. Clients can dynamically decide whether to use WebSOS, based on the prevailing network conditions.
Weak Candidates Are the Least of the Republicans' Problems
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Political science
subject: FOS: Political science

description: Now that the Rick Santorum boomlet seems to be ending, Republicans can return to the real work of bemoaning the state of the presidential primary. Republican dissatisfaction with the primary, which is coming from party stalwarts such as Haley Barbour and John McCain, is presented as concern that the drawn out primary will weaken the Republican chances against Obama, but it is also, implicitly, a recognition both that Mitt Romney, despite his potential appeal to those outside of the Republican base, is a weak candidate, and that no strong conservative candidate emerged during the primary season.
Review of Veli-Matti Kärkkäinen, ed. Holy Spirit and Salvation: The Sources of Christian Theology.
Creators: name: Trostyanskiy, Sergey
Publisher: name: Columbia University
Year: 2010
Subjects: Religion

description: This source book of pneumatology is a collection of excerpts from various Christian sources. Taking into account “an unprecedented interest in the Holy Spirit” in the past few decades and the correspondingly extensive amount of literature on this subject, Kärkkäinen gives to students of theology and church history a chance to get a good glimpse at the issues associated with the Holy Spirit and Its role in Trinitarian theology, ecclesiology, and soteriology. The ambitious task of introducing almost the entire content of Spirit theology to the reader is fulfilled through the careful choice of the most significant works on the subject, supplemented with introductory notes to each excerpt.
The Relationship between Bishops, Synods, and the Metropolitan-Bishop in the Orthodox Canonical Tradition
Creators: name: Rentel, Alexander
Publisher: name: Columbia University
Year: 2010
Subjects: Religion

description: Beginning with St. Basil the Great, Orthodox canonists maintain an eye both on the canons themselves and the practice of the Church. St. Basil said towards the end of his Third Canon that it is necessary “to know those things according to the strict rule and those things that are customary.” This two-fold task of a canonist reflects the nature of the canons themselves, which are literary expressions of what the Church considers to be normative. Various Church councils and fathers drafted the canons, which now form the corpus canonum, during the first millennium. The canons however are theological responses to particular problems and in no way comprehensively describe all aspects of Church life. The life of the Church was and is much more extensive. Consequently the vast reservoir of experience that the Church has needs to factor into any canonical activity. Since the canons are fixed points of reference through their acceptance, they provide the starting point for canonical work. And, as with any text of late antiquity, they require careful reading and explanation. Additionally, because they emerge from within the Church (fathers, councils, etc.), they take their full meaning for the Church only when considered in a broad ecclesial context. All of the tools, the material, and the methods a canonist has at hand are formed and forged by the Church. In this way, the canons are understood as theological formulations and the canonist finds his work as a theologian.
Robust Design for Feature Usage-Driven Product Improvement
Creators: name: Hemmati, Ashkan
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Software Product Improvement
subject: Robust Experimental Designs
subject: Exploratory Research in Software Engineering
subject: Feature-Usage Analysis
subject: Product Performance Predictive Model
subject: Software Engineering
subject: Computer Science

description: Software product improvement is a multi-layered area of study in software engineering, consisting of various processes and attributes. Innovations in technology, changes in customer and market requirements, as well as variations in user requirements introduce challenges, making it difficult to improve a product and satisfy all stakeholders. These concerns become crucial as more features are offered and resources become scarce. To survive in today’s competitive market, product creators need to do more than just keep their customers satisfied. They must also keep them excited for additions and improvements in future releases. The goal is to increase the overall product value; improve product quality and deliver new features to customers. To find an equilibrium between cost and value, and efficiently deploy scarce resources, we can analyze product improvement with respect to system utilization. In this thesis, an exploratory analytical approach is proposed which incorporates robust experimental designs to build the Robust Predictive Performance Model (RPPM) for feature improvement. Robust experimental designs were first introduced by Dr. Genichi Taguchi in the field of manufacturing to increase the robustness of products or processes. Robustness reduces the impact of uncontrollable factors or noises acting on the product and brings the product or process under statistical control. RPPM applies Taguchi designs in software engineering and extends it to generate a reliable predictive linear regression model, using feature usage as an attribute for quality success, customer satisfaction, and overall product value. These findings can then be analyzed to have an unbiased and reliable evaluation of the product value. As part of this thesis, a case study was performed, applying RPPM on a product created by Calgary-based start-up Brightsquid Inc, a global provider of health communication services to medical and dental professionals. Results for applying RPPM show that this approach can lead to reliable predictions about product value, creating a framework for enhancing decision-making, resource allocations, and the ability to accurately forecast future returns in a frequently changing market.
title: Radiographic evaluation of the non-traumatic pediatric skull. “What the pediatrician should know”
Creators: name: Averanga Ticona, Gustavo
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Paediatric
subject: Head and neck
subject: Paediatric
subject: Conventional radiography
subject: Digital radiography
subject: Education
subject: Normal variants
subject: Congenital
subject: Seizure disorders
subject: Speech disorders
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Review the normal radiological anatomy of the pediatric skull. classify radiologically visible cranial pathology. Illustrate with images the pathological radiographic findings of the pediatric skull. Learn the "pitfalls" in the radiographic...
D6.3 Dissemination Plan
Creators: name: Torres, Raymundo E.
Publisher: name: Zenodo
Year: 2018
Subjects: MegaRoller
Dissemination
Scientific communication

description: MegaRoller is a Horizon 2020 project focusing on how to improve European Ocean Wave Energy devices,

specifically by developing a Power Take-off unit able to increase the output from the few 100 kW range to

a full 1 MW range. The project will generate extensive know-how in the area of PTO design and control

systems, with the aim to decrease the levelized cost of energy (LCOE) of next generation OWSC devices.

The aim of this dissemination plan is to maximize the impact, take-up, visibility, and credibility of the

project. This plan addresses the purpose of dissemination, what will be disseminated to whom, how and

when.

The findings from the project will be disseminated to relevant stakeholders throughout the duration of the

project. We envisage that this plan is a dynamic document; so that our activities outlined may be subject

to change over the duration of the project, and we remain open to alternative ways of publicising and

disseminating our results. Dissemination will take place using both traditional channels (publications and

conferences) but also in dedicated workshops and scientific meetings, such as in side-events in order to

increase the impact of the project.

The communication plan (information about the action), the exploitation and innovation management

aspects are all dealt with in separate deliverables and will therefore not be discussed in depth in this

dissemination plan.
COPIM Computational Publishing Pilot - Publishing from Collections Using Linked Open Data Source and Computational Publishing Pipelines
Creators: name: Adema, Janneke
Publisher: name: Zenodo
Year: 2023

description: Presentation delivered as part of a hands-on class for participants with no prior experience of computational publishing (Jupyter Notebooks) or linked open data (Wikidata and Wikibase). Presentation demonstrates use cases for the auto-creation of catalogue publications for exhibitions or publication listings – made from multiple linked open data (LOD) sources and publishing as multi-format: web, PDF and, ebook, etc
title: Complications in bariatric surgery: What the surgeon wants to hear.
Creators: name: Averanga Ticona, Gustavo
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: GI Tract
subject: Gastrointestinal tract
subject: Stomach (incl. Oesophagus)
subject: CT
subject: Complications
subject: Education and training
subject: Fistula
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Analyze the methods of customization in the acquisition of images of the bariatric patient. Recognize the techniques of bariatric surgery and identify the postoperative anatomy . Review the expected complications and detect potential " pitfalls " at...
Bildungsdisparitäten im Berliner Umland unter besonderer Betrachtung der MINT-Fachbereiche: eine Studie zur differenzierten Betrachtung öffentlicher und privater Gymnasien
Creators: name: Stein, André
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2018
Subjects: subject: 300 Sozialwissenschaften 370 Bildung und Erziehung

description: Der Arbeit liegen zwei Annahmen zugrunde. Erstens wird davon ausgegangen, dass es einen signifikanten Leistungsunterschied im Bereich des MINT-Fächerkanons zwischen Schüler-Innen der neunten Klassen an öffentlichen und privaten Gymnasien im Berliner Umland gibt. Diese Annahme kann mithilfe der Auswertung der erhobenen Daten bestätigt werden. Zweitens wird für das Berliner Umland eine Trennung der Schülerschaft in den neunten Klassen zwischen privaten und öffentlichen Gymnasien hinsichtlich ihres sozioökonomischen Hintergrundes angenommen. Dabei fokussiert diese Untersuchung Schulen in nur einem Bundesland. Das hat den Vorteil, dass Störfaktoren, die bei anderen Studien über Bundeslandgrenzen hinweg zu berücksichtigen sind, ausgeschlossen werden können, da durch die Eingrenzung der Untersuchung auf das Berliner Umland einheitliche Lehrplanvoraussetzungen, einheitliche Stundenkontingente und einheitliche Bewertungskriterien Grundlage dieser Studie sind. Die erhobenen Daten werden mithilfe von Mittelwertvergleichen, Varianzanalysen und partiellen Korrelationen analysiert. Mögliche Ursachen der in der Studie herausgearbeiteten Leistungsdisparitäten sowie die Disparitäten des sozioökonomischen Hintergrundes der SchülerInnen werden in der Arbeit diskutiert.
description: This thesis is based on two assumptions. Firstly, it is assumed that there is a significant difference regarding the performing level of year 9 students attending private and public schools in the vicinity of Berlin, affecting subjects such as mathematics, informatics, science and technology. This theory can be proven with the results of a survey which had been carried out earlier. Secondly, it is assumed that there is a distinction between the student’s socioeconomic background in private and public schools. Other than previous studies, this examination solely focuses on schools in one federal state. As a result confounders such as the number of lessons, curriculum and assessment criteria can be avoided as these factors are uniform in the area surrounding Berlin. Previous studies, carried out in more than one federal state, have failed to be based on the same preconditions ever since. Collected data will be analyzed using a comparison of means, analysis of variance and partial correlation. Both, possible reasons in performance disparities, as well as disparities reflected in the socioeconomic background of the students will be discussed in this thesis.
Complex Effective Path: A Semi-Classical Probe of Quantum Effects
Creators: name: Singh, Suprit
name: Padmanabhan, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss the notion of an effective, average, quantum mechanical path which is a solution of the dynamical equations obtained by extremizing the quantum effective action. Since the effective action can, in general, be complex, the effective path will also, in general, be complex. The imaginary part of the effective action is known to be related to the probability of particle creation by an external source and hence we expect the imaginary part of the effective path also to contain information about particle creation. We try to identify such features using simple examples including that of effective path through the black hole horizon leading to thermal radiation. Implications of this approach are discussed.
description: 20 pages; no figures; to appear in Phys.Rev.D
title: "Beyond Yin-Yang".Ultrasound evaluation of the complications of Abdominal Aortic Aneurysm
Creators: name: Averanga Ticona, Gustavo
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Hypertension
subject: Dissection
subject: Surgery
subject: Complications
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Emergency
subject: Cardiovascular system
subject: Arteries / Aorta
subject: Vascular

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Remember the usual ultrasound findings of AAA. Establish the characteristics that should be mentioned for proper characterization and classification. Recognize direct or indirect ultrasound findings that show signs of AAA complication . Perform a...
Holy Disobedience: Resistance to Secular and Ecclesiastical Authority in Orthodox Christian History
Creators: name: Siecienski, A. Edward
Publisher: name: Columbia University
Year: 2010
Subjects: Religion

description: As one begins a study of Christian history, and in particular the patristic period, what becomes immediately apparent is how often figures regarded as “heroes” of the Christian narrative found themselves at odds with both secular and ecclesiastical authority. These heroes and saints were the ones who, to protect the orthodox faith, disobeyed the biblical injunction to “submit yourselves for the Lord's sake to every authority instituted among men” (1 Peter 2:13). They were the ones who ignored Ignatius of Antioch’s plea to be obedient to the bishop, respecting him “as you respect the authority of God the Father.” Of course, this dynamic is not exclusive to the patristic period. For example, during the thirteenth and fifteenth century debates over union with the Roman Catholic Church, once again we find the saints actively struggling against both ecclesiastical and secular authority in order to preserve the Orthodox faith.
Experimental realization of plaquette resonating valence bond states with ultracold atoms in optical superlattices
Creators: name: Nascimbène, Sylvain
name: Chen, Yu-Ao
name: Atala, Macros
name: Aidelsburger, Monika
name: Trotzky, Stefan
name: Paredes, Belén
name: Bloch, Immanuel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The concept of valence bond resonance plays a fundamental role in the theory of the chemical bond and is believed to lie at the heart of many-body quantum physical phenomena. Here we show direct experimental evidence of a time-resolved valence bond quantum resonance with ultracold bosonic atoms in an optical lattice. By means of a superlattice structure we create a three-dimensional array of independent four-site plaquettes, which we can fully control and manipulate in parallel. Moreover, we show how small-scale plaquette resonating valence bond states with s- and d-wave symmetry can be created and characterized. We anticipate our findings to open the path towards the creation and analysis of many-body RVB states in ultracold atomic gases.
description: 7 page, 4 figures in main text, 3 figures in appendix
‘I Must Decrease’: Spiritual Direction and Power in the Orthodox Tradition
Creators: name: Torrance, Alexis
Publisher: name: Columbia University
Year: 2010
Subjects: Religion

description: I was prompted to present on the topic of power and spiritual direction by some words of Fr. Alexander Schmemann. They struck me, and have remained etched in my mind ever since: “there is nothing more frightening than the thirst for power over souls. It is the thirst of the anti-christ.” Schmemann knew first-hand the kinds of distortions taking place under the name of Orthodoxy which this line evokes. Distortions, perhaps, should not be surprising. After all, if Lord Acton was right when he declared that “power tends to corrupt, and absolute power corrupts absolutely,” then the potential risks inherent in the ministry of spiritual direction in the Orthodox Church become clear. But this paper is not about the frequent and tragic abuse of spiritual authority and power in the history of Orthodoxy. I want rather to focus on one of the chief ways in which the Orthodox tradition has attempted to promote and protect the Christian integrity of the ministry of the spiritual father (and the spiritual mother), namely through the tactics of the director’s self-abasement, humility, and love. These tactics, I submit, are an attempt at the subversion of models of power as they generally obtain in this world, after the example of, and for the sake of, Christ.
title: Elastography of the thyroid: principles, techniques and TIRADS illustrations
Creators: name: Defendi, Larissa
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Physics in Medical Imaging
subject: Thyroid / Parathyroids
subject: Elastography
subject: Ultrasound
subject: Physics
subject: Education and training
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The present study proposes a review on the principles and techniques regarding elastography ultrasound. Firstly, a review on the physical basis will be conducted, followed by a case discussion of several thyroid nodules and their respective TI-RADS...
A2M: Access-Assured Mobile Desktop Computing
Creators: name: Stavrou, Angelos
name: Barrato, Ricardo A.
name: Keromytis, Angelos D.
name: Nieh, Jason
Publisher: name: Columbia University
Year: 2009
Subjects: Computer science

description: Continued improvements in network bandwidth, cost, and ubiquitous access are enabling service providers to host desktop computing environments to address the complexity, cost, and mobility limitations of today's personal computing infrastructure. However, distributed denial of service attacks can deny use of such services to users. We present A2M, a secure and attack-resilient desktop computing hosting infrastructure. A2M combines a stateless and secure communication protocol, a single-hop Indirection-based network (IBN) and a remote display architecture to provide mobile users with continuous access to their desktop computing sessions. Our architecture protects both the hosting infrastructure and the client's connections against a wide range of service disruption attacks. Unlike any other DoS protection system, A2M takes advantage of its low-latency remote display mechanisms and asymmetric traffic characteristics by using multi-path routing to send a small number of replicas of each packet transmitted from client to server. This packet replication through different paths, diversifies the client-server communication, boosting system resiliency and reducing end-to-end latency. Our analysis and experimental results on PlanetLab demonstrate that A2M significantly increases the hosting infrastructure's attack resilience even for wireless scenarios. Using conservative ISP bandwidth data, we show that we can protect against attacks involving thousands (150,000) attackers, while providing good performance for multimedia and web applications and basic GUI interactions even when up to 30% and 50%, respectively, of indirection nodes become unresponsive.
MOVE: An End-to-End Solution To Network Denial of Service
Creators: name: Stavrou, Angelos
name: Keromytis, Angelos D.
name: Nieh, Jason
name: Misra, Vishal
name: Rubenstein, Daniel Stuart
Publisher: name: Columbia University
Year: 2005
Subjects: Computer science

description: We present a solution to the denial of service (DoS) problem that does not rely on network infrastructure support, conforming to the end-to-end (e2e) design principle. Our approach is to combine an overlay network, which allows us to treat authorized traffic preferentially, with a lightweight process-migration environment that allows us to move services easily between different parts of a distributed system. Functionality residing on a part of the system that is subjected to a DoS attack migrates to an unaffected location. The overlay network ensures that traffic from legitimate users, who are authenticated before they are allowed to access the service, is routed to the new location. We demonstrate the feasibility and effectiveness of our approach by measuring the performance of an experimental prototype against a series of attacks using PlanetLab, a distributed experimental testbed. Our preliminary results show that the end-to-end latency remains at acceptable levels during regular operation, increasing only by a factor of 2 to 3, even for large overlays. When a process migrates due to a DoS attack, the disruption of service for the end user is in the order of a few seconds, depending on the network proximity of the servers involved in the migration.
Pushback for Overlay Networks: Protecting Against Malicious Insiders
Creators: name: Stavrou, Angelos
name: Locasto, Michael E.
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2008
Subjects: Computer science

description: Peer-to-Peer (P2P) overlay networks are a flexible way of creating decentralized services. Although resilient to external Denial of Service attacks, overlay networks can be rendered inoperable by simple flooding attacks generated from insider nodes. In this paper, we study detection and containment mechanisms against insider Denial of Service (DoS) attacks for overlay networks. To counter such attacks, we introduce novel mechanisms for protecting overlay networks that exhibit well defined properties due to their structure against non-conforming (abnormal) behavior of participating nodes. We use a lightweight distributed detection mechanism that exploits inherent structural invariants of DHTs to ferret out anomalous flow behavior. We evaluate our mechanism's ability to detect attackers using our prototype implementation on web traces from IRCache served by a DHT network. Our results show that our system can detect a simple attacker whose attack traffic deviates by as little as 5% from average traffic. We also demonstrate the resiliency of our mechanism against coordinated distributed flooding attacks that involve up to 15% of overlay nodes. In addition, we verify that our detection algorithms work well, producing a low false positive rate (< 2%) when used in a system that serves normal web traffic.
A U(2)^3 flavour symmetry in Supersymmetry
Creators: name: Sala, Filippo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A U(2)^3 flavour symmetry acting on the first two generations of quarks partially explains the hierarchies of the yukawa couplings, and provides a natural embedding for Supersymmetry with heavier first two generations, where collider constraints are not in conflict with the requirement of naturalness and the SUSY CP problem is solved. Within this context a specific pattern of flavour symmetry breaking is considered. The K, B_d and B_s mixing amplitudes show a definite correlation that can resolve existing tensions in the CKM fit, pointing in this way to sbottom and gluino masses below about 1.5 TeV. Potentially sizeable contributions to both indirect and direct CP violation in B decays are allowed, even in the absence of flavour-blind phases. In case some effects are observed, the peculiar pattern in Delta(F) = 2 and Delta(B) = 1 observables may allow to distinguish between this and other models.
description: 6 pages, 2 figures; Contribution to the proceedings of the Corfu Summer Institute 2011, School and Workshops on Elementary Particle Physics and Gravity, September 4-18, 2011 Corfu, Greece; v2: references added, matches PoS version
title: Transition, volume 1, issue 3
title: Transition
titleType: AlternativeTitle
Creators: name: Watts, Steve
name: ASCSU, Publisher
Publisher: name: Mountain Scholar
Year: 1969
Subjects: Colorado State University -- Periodicals
Fort Collins (Colo.) -- Periodicals

description: April 25 issue of the Transition, a weekly Colorado State University student newspaper and an alternative to the Rocky Mountain Collegian. Includes articles, photographs, and illustrations concerning local and national issues important to students at Colorado State University.
The application of transformational leadership theory to parenting and adolescent health promotion
Creators: name: Morton, Katie Louise
Publisher: name: University of British Columbia
Year: 2011

description: The overall purpose of my dissertation was to apply a framework of parenting that draws from transformational leadership theory to better understand the influence of parents on the health-enhancing cognitions and behaviours among adolescents. Transformational parenting is a type of parenting that elevates, inspires and challenges youth to achieve higher levels of functioning, and is conceptualized as the extent to which parents interact with their children through the demonstration of idealized influence, inspirational motivation, intellectual stimulation, and individualized consideration. In chapter 1, an overview is provided of the importance of adolescent health and well-being, and the role of parents in adolescent health promotion. In addition, chapter 1 presents a synopsis of validity theory and an overview of the subsequent chapters within this dissertation. Following this, an extensive review of both the transformational leadership and parenting literatures is presented and the conceptual similarities between parenting and leadership are highlighted (chapter 2). In this theoretical and integrative review, it is argued that extending transformational leadership theory to parenting presents an opportunity for developing a useful conceptual model for (a) understanding the relationships between parenting and adolescents’ health behaviours, and (b) supporting the development of parenting interventions. The development of a measure of transformational parenting for use with adolescents is presented in chapter 3. First, potential items were generated and evidence for content validity was demonstrated through the use of focus groups with parents and adolescents. Evidence for several aspects of construct validity of measures derived from the Transformational Parenting Questionnaire (TPQ) is provided. Positive relationships between mothers’ and fathers’ transformational parenting behaviours, adolescents’ self-regulatory efficacy for physical activity and healthy eating, and life satisfaction are also demonstrated. The results of a pilot intervention guided by transformational leadership theory, are presented in chapter 4. Finally, in chapter 5, an overview is provided of the novel contributions of the research as well as limitations and future directions. In conclusion, the research presented within this dissertation demonstrates that transformational leadership theory represents a useful paradigm to better understand, and potentially foster, health-enhancing cognitions, behaviours and well-being among adolescents.
Effects of footwear and stride length on metatarsal strains and failure in running
Creators: name: Firminger, Colin R.
name: Fung, Anita
name: Loundagin, Lindsay L.
name: Edwards, William Brent
Publisher: name: Arts
Year: 2017

description: The metatarsal bones of the foot are particularly susceptible to stress fracture owing to the high strains they experience during the stance phase of running. Shoe cushioning and stride length reduction represent two potential interventions to decrease metatarsal strain and thus stress fracture risk.
Variable X-ray absorption in the mini-BAL QSO PG 1126-041
Creators: name: Giustini, Margherita
name: Cappi, Massimo
name: Chartas, George
name: Dadina, Mauro
name: Eracleous, Mike
name: Ponti, Gabriele
name: Proga, Daniel
name: Tombesi, Francesco
name: Vignali, Cristian
name: Palumbo, Giorgio G. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: X-ray studies of active galactic nuclei (AGN) with powerful nuclear winds are important for constraining the physics of the inner accretion/ejection flow around supermassive black holes (SMBHs) and for understanding the impact of such winds on the AGN environment. Our main scientific goal is to constrain the properties of the circum-nuclear matter close to the SMBH in the mini-broad absorption line quasar (mini-BAL QSO) PG 1126-041 using a multi-epoch observational campaign with XMM-Newton. We performed temporally resolved X-ray spectroscopy and simultaneous UV and X-ray photometry on the most complete set of observations and on the deepest X-ray exposure of a mini-BAL QSO ever. We found complex X-ray spectral variability on time scales of both months and hours, which is best reproduced by means of variable massive ionized absorbers along the line of sight. As a consequence, the observed optical-to-X-ray spectral index is found to be variable with time. In the highest signal-to-noise observation we detected highly ionized X-ray absorbing material outflowing much faster (v ~ 16500 km/s) than the UV absorbing one (v ~ 5000 km/s). This highly ionized absorber is found to be variable on very short (a few kiloseconds) time scales. Our findings are qualitatively consistent with line-driven accretion disk winds scenarios. Our observations have opened the time-resolved X-ray spectral analysis field for mini-BAL QSOs. Only with future deep studies will we be able to map the dynamics of the inner flow and understand the physics of AGN winds and their impact on the environment.
description: Replaced to match the published version
Elastic Block Ciphers: Method, Security and Instantiations
Creators: name: Cook, Debra L.
name: Yung, Moti
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2009
Subjects: Computer science

description: We introduce the concept of an elastic block cipher  which refers to stretching the supported block size of a block cipher to any length up to twice the original block size while incurring a computational workload that is proportional to the block size. Our method uses the round function of an existing block cipher as a black box and inserts it into a substitution- permutation network. Our method is designed to enable us to form a reduction between the elastic and the original versions of the cipher. Using this reduction, we prove that the elastic version of a cipher is secure against key-recovery attacks if the original cipher is secure against such attacks. We note that while reduction-based proofs of security are a cornerstone of cryptographic analysis, they are typical when complete components are used as sub-components in a larger design. We are not aware of the use of such techniques in the case of concrete block cipher designs. We demonstrate the general applicability of the elastic block cipher method by constructing examples from existing block ciphers: AES, Camellia, MISTY1, and RC6. We compare the performance of the elastic versions to that of the original versions and evaluate the elastic versions using statistical tests measuring the randomness of the ciphertext. We also use our examples to demonstrate the concept of a generic key schedule for block ciphers.
Fragmentation of Primordial Filamentary Clouds under Far-Ultraviolet Radiation
Creators: name: Bessho, S.
name: Tsuribe, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Collapse and fragmentation of uniform filamentary clouds under isotropic far-ultraviolet external radiation are investigated. Especially, impact of photodissociation of hydrogen molecules during collapse is investigated. Dynamical and thermal evolution of collapsing filamentary clouds are calculated by solving virial equation and energy equation with taking into accounts non-equilibrium chemical reactions. It is found that thermal evolution is hardly affected by the external radiation if the initial density is high ($n_0 > 10^2 \mathrm{cm^{-3}}$). On the other hand, if line mass of the filamentary cloud is moderate and initial density is low ($n_0 \le 10^2 \mathrm{cm^{-3}}$), thermal evolution of the filamentary cloud tends to be adiabatic owing to the effect of the external dissociation radiation. In this case, collapse of the filamentary cloud is suppressed and the filamentary cloud fragments into very massive clouds ($\sim 10^{4-5} M_\odot$) in the early stage of collapse. Analytic criterion for the filamentary clouds to fragment into such massive clouds is discussed. We also investigate collapse and fragmentation of the filamentary clouds with an improved model. This model can partly capture the effect of run-away collapse. Also in this model, the filamentary clouds with low initial density ($n_0 \le 10^2 \mathrm{cm^{-3}}$) fragment into massive clouds ($\sim 10^4 M_\odot$) owing to the effect of the external radiation.
description: 37 pages, 17 figures, PASJ, accepted
title: What can we find in the male breast?
Creators: name: Faria, Raquel
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Observational
subject: Retrospective
subject: Cancer
subject: Biopsy
subject: Ultrasound
subject: MR
subject: Mammography
subject: Breast
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To illustrate the male breast diseases in different imaging methods (ultrasonography, mammography and magnetic resonance imaging). To illustrate the imaging findings of benign and malignant lesions of the male...
Topological phases in a two-dimensional lattice: Magnetic field versus spin-orbit coupling
Creators: name: Beugeling, W.
name: Goldman, N.
name: Smith, C. Morais
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work, we explore the rich variety of topological states that arise in two-dimensional systems, by considering the competing effects of spin-orbit couplings and a perpendicular magnetic field on a honeycomb lattice. Unlike earlier approaches, we investigate minimal models in order to clarify the effects of the intrinsic and Rashba spin-orbit couplings, and also of the Zeeman splitting, on the quantum Hall states generated by the magnetic field. In this sense, our work provides an interesting path connecting quantum Hall and quantum spin Hall physics. First, we consider the properties of each term individually and we analyze their similarities and differences. Secondly, we investigate the subtle competitions that arise when these effects are combined. We finally explore the various possible experimental realizations of our model.
description: 19 pages, 15 figures