cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Falling short: suboptimal outcomes in Canadian defence procurement
Creators: name: MacMillan, Ian
Publisher: name: Arts
Year: 2018
Subjects: subject: Procurement
subject: Defence
subject: Military
subject: Canada
subject: Canadian Armed Forces
subject: Economics--History
subject: Military Studies
subject: Political Science
subject: FOS: Political science
subject: Public Administration

description: Why do Canada’s military procurement projects often fall short of their primary goals? Otherwise known as a suboptimal result, defence acquisitions regularly fall short of established delivery schedules, accruing cost-overruns, sometimes resulting in cancellation of key materiel. One-hundred percent of the twenty-five Major Crown Projects at the Department of National Defence have experienced delays in achieving key milestones. Aside from cost, suboptimal results are injurious to Canada’s tri-force military. Fortunately, the matter has not gone unchecked. A fairly recent surge in procurement research has generated a critical mass of Canadian-focused literature. Preliminary research for this study shows a connection between suboptimal results and the organizations and personnel that populate procurement processes. Based on the bureaucratic politics model, a competitive interaction between uniquely conditioned policy players causes suboptimal delays and costs. Players orient outcomes to suit personal and organizational interests. The advantage of the bureaucratic politics model is the clarity with which it illustrates decision processes. Its simplistic structure serves as an ideal model for comparing three cases in Canadian procurement. Taken from the Department of National Defence’s Status Report on Transformational and Major Crown Projects, this study tests the bureaucratic theory against the Tank Replacement Project, the Joint Support Ship Project, and the ongoing project(s) to replace Canada’s CF-18 Hornets. The objective is to see if these cases share common findings contributing to suboptimality. The bureaucratic model assists the methodological goal of a structured, focused comparison. Two of the three cases demonstrate the competitive interaction between players as a factor in determining delays and cost-overruns. Although the Joint Support Ship Project included a host of unique players competing to determine decision outcomes, the factor that contributed to schedule slippage was the result of widespread agreement on a build in Canada approach. This consensus led to reliance on one underequipped shipyard to approach an overambitious project. Based on the overall study, three findings prevail. First, reports by bureaucratic institutions like the Parliamentary Budget Office and the Office of the Auditor General have tremendous political capital. Second, domestic production schemes are noble, but sometimes unrealistic. Third, competition for goods is always necessary.
Code Generation in the Columbia Esterel Compiler
Creators: name: Edwards, Stephen A.
name: Zeng, Jia
Publisher: name: Columbia University
Year: 2007
Subjects: Computer science

description: The synchronous language Esterel provides deterministic concurrency by adopting a semantics in which threads march in step with a global clock and communicate in a very disciplined way. Its expressive power comes at a cost, however: it is a difficult language to compile into machine code for standard von Neumann processors. The open-source Columbia Esterel Compiler is a research vehicle for experimenting with new code generation techniques for the language. Providing a front-end and a fairly generic concurrent intermediate representation, a variety of back-ends have been developed. We present three of the most mature ones, which are based on program dependence graphs, dynamic lists, and a virtual machine. After describing the very different algorithms used in each of these techniques, we present experimental results that compares twenty-four benchmarks generated by eight different compilation techniques running on seven different processors.
Conformal Symmetry of a Black Hole as a Scaling Limit: A Black Hole in an Asymptotically Conical Box
Creators: name: Cvetic, M.
name: Gibbons, G. W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that the previously obtained subtracted geometry of four-dimensional asymptotically flat multi-charged rotating black holes, whose massless wave equation exhibit $SL(2,\R) \times SL(2,\R) \times SO(3)$ symmetry may be obtained by a suitable scaling limit of certain asymptotically flat multi-charged rotating black holes, which is reminiscent of near-extreme black holes in the dilute gas approximation. The co-homogeneity-two geometry is supported by a dilation field and two (electric) gauge-field strengths. We also point out that these subtracted geometries can be obtained as a particular Harrison transformation of the original black holes. Furthermore the subtracted metrics are asymptotically conical (AC), like global monopoles, thus describing "a black hole in an AC box". Finally we account for the the emergence of the $SL(2,\R) \times SL(2,\R) \times SO(3)$ symmetry as a consequence of the subtracted metrics being Kaluza-Klein type quotients of $ AdS_3\times 4 S^3$. We demonstrate that similar properties hold for five-dimensional black holes.
description: Sections 3 and 4 significantly augmented
SHIM: A Deterministic Model for Heterogeneous Embedded Systems
Creators: name: Edwards, Stephen A.
name: Tardieu, Olivier
Publisher: name: Columbia University
Year: 2006
Subjects: Computer science

description: Typical embedded hardware/software systems are implemented using a combination of C and an HDL such as Verilog. While each is well-behaved in isolation, combining the two gives a nondeterministic model  of computation whose ultimate behavior must be validated through expensive (cycle-accurate) simulation. We propose an alternative for describing such systems. Our software/hardware integration medium (shim) model, effectively Kahn networks with rendezvous communication, provides deterministic concurrency. We present the Tiny-shim language for such systems and its semantics, demonstrate how to implement it in hardware and software, and discuss how it can be used to model a real-world system. By providing a powerful, deterministic formalism for expressing systems, designing systems, and verifying their correctness will become easier.
Characterization of Proteoglycan 4 Supramolecular Structure and its Effect on Lubricating Function
Creators: name: Martens, Kayla
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Chemistry
subject: Engineering
subject: Engineering--Biomedical

description: Proteoglycan 4 (PRG4) is a mucin-like glycoprotein that is a key synovial fluid constituent, functioning as a cartilage boundary lubricant. PRG4 has been suggested to exist as a supramolecular structure. The objectives of this thesis were to (1) characterize the supramolecular structure of recombinant human PRG4 (rhPRG4) and its dependency on concentration, (2) elucidate the molecular forces underlying the formation of the supramolecular structure, and (3) assess the lubricating ability of the supramolecular structure. rhPRG4’s ability to form a supramolecular structure and reduce friction was concentration dependent. Arginine (0.2M) disrupted the formation of the supramolecular structure of rhPRG4 and diminished its lubricating ability. Conversely, 20 mM calcium enhanced the formation of rhPRG4 supramolecular structure and enhanced its lubricating ability. These results suggest non-covalent interactions mediate rhPRG4’s supramolecular structure, shown here to exist for the first time, which in turn is a functionally (lubrication) determinant property.
The role of Hic1 in testicular smooth muscle cells
Creators: name: Uchida, Aya
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Testis
subject: Mouse
subject: Smooth muscle cells
subject: Hic1
subject: Biology--Cell

description: Testicular smooth muscle cells, including peritubular myoid cells and vasculature smooth muscle cells, regulate spermatogonial stem cell function in the mammalian testis. However, the mechanisms and signaling pathways that affect germ cell function largely remain to be elucidated. Here we report the expression of Hypermethylated in cancer 1 (Hic1) in testicular smooth muscle cells by using the Hic1CreERT2:RosatdTomato mice. Linage tracing experiments with Hic1CreERT2:RosatdTomato mice revealed that Hic1 expressing peritubular myoid expanded their population throughout testicular development. We hypothesized that Hic1 expression in testicular smooth muscle cells is involved in maintenance of spermatogenesis and tested this hypothesis by using aSMACreERT2:Hic1flox:RosatdTomato mice that allow conditional knock out (cKO) of Hic1 in smooth muscle cells. Deletion of Hic1 in smooth muscle cells resulted in aberrant spermatogenesis with degenerate seminiferous epithelium and dilated seminiferous tubules in mouse testis. The Hic1 cKO mice had heavier testes with more undifferentiated spermatogonia and fewer differentiated germ cells compared to controls. The peritubular myoid cells surrounding the seminiferous tubules were distributed at similar density in cKO and control mice, yet the number of Sertoli cells per seminiferous tubule in cKO mice was decreased compared to the control mice. Deposition of fibronectin, an extracellular matrix protein secreted from peritubular myoid cells, was disrupted in Hic1 cKO mice, suggesting a functional defect in Hic1 cKO peritubular myoid cells. Additionally, a tight junction protein, occludin, showed a disruption in cKO mice, indicating an indirect effect of cKO peritubular myoid cells on the germ cells, through Sertoli cells. Taken together, we demonstrated that Hic1 signaling in testicular myoid cells is playing an important role to regulate spermatogenesis. This study demonstrated the expression of Hic1 in testicular smooth muscle cells and provided insights into a signaling pathway in testicular smooth muscle cells to directly/indirectly affect germ cells.
title: Intracranial opportunistic infections in HIV/AIDS patients: Toxoplasmosis vs. Primary lymphoma
Creators: name: Prountzos, Spyridon
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Retrospective
subject: AIDS
subject: Education
subject: MR
subject: CT
subject: Neuroradiology brain
subject: CNS
subject: Neuro

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To demonstrate the use of current medical imaging techniques to reveal the relevant pathology on a daily basis and to review the radiological findings of each...
On peculiar properties of generating functions of some orthogonal polynomials
Creators: name: Szabłowski, Paweł J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 33D45, 26C05 (Primary) 05A30 (Secondary)

description: We prove that for |x|,|t|<1, -1
title: Many names of dementia
Creators: name: Pugliesi, Alba Rosa
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Education and training
subject: Education
subject: MR
subject: CT
subject: CNS
subject: Neuro
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To learn whic h neurodegenerative disorders may be associated with dementia. To illustrate how radiological findings may support the diagnosis of specific neurodegenerative disorders. To explore how Neuroimaging may also be used to assess disease...
Impressions and Experiences of Blackfoot Artists Involved in a Community-Led Art Intervention for Student Wellness and Educational Engagement
Creators: name: St. Pierre, Shannon Michelle
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Storywork
subject: Indigenous
subject: Community-based research
subject: Art Intervention
subject: Anti-oppression pedagogy
subject: Decolonization
subject: Culturally-rooted intervention
subject: Indigenous youth
subject: Wellness
subject: Educational engagement
subject: Blackfoot
subject: Niitsitapi Artists
subject: Educational Psychology

description: Since the initiation of the Truth and Reconciliation Commission of Canada, there has been increasing demand for culturally-rooted interventions to support the wellness of Indigenous youth. The context of colonialism in Canada has serious implications for the wellbeing of Indigenous people. To address the source of illness, this study used a decolonizing, community-based approach in both the implementation of an intervention and the study of that intervention. An Indigenous approach was considered throughout the research process to support the centring of Indigenous voices in research. In the present study, the purpose was to gain an understanding of Niitsitapi (Blackfoot) artists’ experiences and impressions of an art workshop/intervention as it related to student wellness and educational engagement. For this purpose, an Indigenous storywork method was used to analyze research conversations with Niitsitapi artists who took part in facilitating the art workshop. The findings of this study have practical implications for the integration of art in a pedagogical framework to improve student wellness and educational engagement.
Micro Phase Shifting
Creators: name: Gupta, Mohit
name: Nayar, Shree K.
Publisher: name: Columbia University
Year: 2012
Subjects: Computer science

description: We consider the problem of shape recovery for real world scenes, where a variety of global illumination (inter-reflections, subsurface scattering, etc.) and illumination defocus effects are present. These effects introduce systematic and often significant errors in the recovered shape. We introduce a structured light technique called Micro Phase Shifting, which overcomes these problems. The key idea is to project sinusoidal patterns with frequencies limited to a narrow, high-frequency band. These patterns produce a set of images over which global illumination and defocus effects remain constant for each point in the scene. This enables high quality reconstructions of scenes which have traditionally been considered hard, using only a small number of images. We also derive theoretical lower bounds on the number of input images needed for phase shifting and show that Micro PS achieves the bound.
Lasing at a Stationary Inflection Point
Creators: name: Herrero-Parareda, Albert
name: Furman, Nathaniel
name: Mealy, Tarek
name: Gibson, Richard
name: Bedford, Robert
name: Vitebskiy, Ilya
name: Capolino, Filippo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The concept of lasers based on the frozen mode regime in active periodic optical waveguides with a 3rd-order exceptional point of degeneracy (EPD) is advanced. The frozen mode regime in a lossless and gainless waveguide is associated with a stationary inflection point (SIP) in the Bloch dispersion relation, where three Bloch eigenmodes coalesce forming the frozen mode. As a practical example, we consider an asymmetric serpentine optical waveguide (ASOW). An ASOW operating near the SIP frequency displays a large group delay of a non-resonant nature that scales as the cube of the waveguide length, leading to a strong gain enhancement when active material is included. Therefore, a laser operating in the close vicinity of an SIP has a gain threshold that scales as a negative cube of the waveguide length. We determine that this scaling law is maintained in the presence of small distributed losses, such as radiation associated with waveguide bends and roughness. In addition, we show that although gain causes a distortion in the modes coalescing at the SIP, the properties of the frozen mode are relatively resistant to such small perturbations and we still observe a large degree of exceptional degeneracy for gain values that bring the system above threshold. Finally, our study also reveals that lasing near an SIP is favored over lasing near a photonic band edge located in close proximity to the SIP. In particular, we observe that an SIP-induced lasing in an ASOW displays lower gain threshold compared to lasing near the photonic regular band edge (RBE), even though the SIP resonance has a lower quality factor than the RBE resonance.
Top quark forward-backward asymmetry in R-parity violating supersymmetry
Creators: name: Dupuis, Grace
name: Cline, James M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The interaction of bottom squark-mediated top quark pair production, occurring in the R-parity violating minimal supersymmetric standard model (MSSM), is proposed as an explanation of the anomalously large $t\bar{t}$ forward-backward asymmetry (FBA) observed at the Tevatron. We find that this model can give a good fit to top quark data, both the inclusive and invariant mass-dependent asymmetries, while remaining consistent (at the 2-$σ$ level) with the total and differential production cross-sections. The scenario is challenged by strong constraints from atomic parity violation (APV), but we point out an extra diagram for the effective down quark-Z vertex, involving the same coupling constant as required for the FBA, which tends to weaken the APV constraint, and which can nullify it for reasonable values of the top squark masses and mixing angle. Large contributions to flavor-changing neutral currents can be avoided if only the third generation of sparticles is light.
description: 24 pages, 7 figures. v3: included LHC top production cross section data; model still consistent at 2 sigma level
Control of Grid-Forming VSCs: A Perspective of Adaptive Fast/Slow Internal Voltage Source
Creators: name: Wu, Heng
name: Wang, Xiongfei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Grid-forming (GFM) capability requirements are increasingly imposed on grid-connected voltage-source converters (VSCs). Under large grid disturbances, GFM-VSCs need to remain stable while providing GFM services. Yet, such objectives, as pointed out in this paper, inherently lead to conflicting requirements on the dynamics of internal voltage source (IVS) of GFM-VSCs, i.e., the fast IVS dynamics is needed to avoid the loss of synchronism with the grid, whereas the slow IVS dynamics is preferred for maintaining GFM capability. To tackle this challenge, an adaptive fast/slow IVS control is proposed, which switches GFM-VSC between fast and slow IVS dynamics based on system needs. The proposed method enhances the transient stability of GFM-VSC, whilst maximizing its capability of providing GFM service. Further, the approach is robust to different grid strengths and different types of grid disturbances. The experimental results verify the theoretical findings and the effectiveness of the proposed control method.
Entropic Force Scenarios and Eternal Inflation
Creators: name: Qiu, Taotao
name: Saridakis, Emmanuel N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine various entropic inflation scenarios, under the light of eternality. After describing the inflation realization and the normal condition for inflation to last at the background level, we investigate the conditions for eternal inflation with the effect of thermal fluctuations produced from standard radiation and from the holographic screen. Furthermore, we incorporate stochastic quantum fluctuations through a phenomenological, Langevin analysis, studying whether they can affect the inflation eternality. In single-holographic-screen scenarios eternality can be easily obtained, while in double-screen considerations inflation is eternal only in the high-energy regime. Thus, from the cosmological point of view, one should take these into account before he can consider entropic gravity as a candidate for the description of nature. However, form the string theory point of view, inflation eternality may form the background for the "Landscape" of string/M theory vacua, leading to new perspectives in entropy gravity.
description: 13 pages, no figure
Romney's Running Mate Dilemma
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Political science
subject: FOS: Political science

description: Romney will probably need to balance the ticket by nominating somebody who enjoys more trust and confidence than Romney does from the Party's conservative base. The first question Romney should ask about any potential running mate is whether or not that candidate is able to speak intelligently and fluently about the major issues.
title: Journal of student affairs, vol. XVII, 2008
title: Journal of student affairs
titleType: AlternativeTitle
title: Journal of student affairs, vol. 17, 2008
titleType: AlternativeTitle
Creators: name: Colorado State University. Student Affairs In Higher Education, Publisher
Publisher: name: Mountain Scholar
Year: 2008
Subjects: subject: Student affairs services -- United States -- Periodicals
subject: Student affairs administrators -- Training of -- Colorado -- Fort Collins -- Periodicals

description: The mission of the Colorado State University Journal of Student Affairs is to develop and produce a scholarly publication that reflects current national and international education issues and the professional interests of student affairs practitioners. Specifically, the Journal provides an opportunity for the publication of articles by current students, alumni, faculty, and associates of the Student Affairs in Higher Education graduate program at Colorado State University. Articles are submitted in the fall and the Journal is published mid-spring. https://sahe.colostate.edu/journal/journal-board-archives/.
description: Student organizations and their relationship to the institution: a dynamic framework / Linda Kuk, David Thomas, and James Banning -- An emerging population in higher education: students with Asperger Syndrome / Richard Okamoto -- Breaking down barriers: examining the effects of race and ability on study abroad participation / Cynthia Scarpa -- A holistic approach to addressing men's issues in higher education through Chickering's student development theory / Alejandro Covarrubias -- Comprehensive affirmative action: an alternative perspective on racial and socio-economic admission policies / Kyle Carpenter -- A zero-sum game?: the popular media and gender gap in higher education / Chris Linder -- When corporate meets college: corporate scholarship in higher education / Danielle L. Martinez.
Why Seamus Matters
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Political science
subject: FOS: Political science

description: The now famous story of how Mitt Romney strapped his family dog, Seamus, to the roof of the car, albeit in a carrier, for a drive from Boston to Canada continues to, excuse the pun, dog Romney even now after he has secured the Republican Party's nomination. Romney's treatment of Seamus is potentially damaging to his candidacy because it reinforces much of what many Americans, particularly swing voters, already feel about Romney -- that he is a smart enough man, but simply unable to connect or relate to the problems and challenges facing ordinary Americans. The Seamus story is consistent with this because it shows Romney to be goal-driven, singularly focused and insensitive -- it should be remembered that after the dog got sick, Romney pulled over, hosed him off and kept going -- even when taking his family on vacation.
Energy cost of isometric force production after active shortening in skinned muscle fibres
Creators: name: Joumaa, Vénus
name: Fitzowich, Alex
name: Herzog, Walter
Publisher: name: University of Calgary
Year: 2017

description: The steady-state isometric force after active shortening of a skeletal muscle is lower than the purely isometric force at the corresponding length. This property of skeletal muscle is known as force depression. The purpose of this study was to investigate whether the energy cost of force production at the steady state after active shortening was reduced compared with the energy cost of force production for a purely isometric contraction performed at the corresponding length (same length, same activation). Experiments were performed in skinned fibres isolated from rabbit psoas muscle. Skinned fibres were actively shortened from an average sarcomere length of 3.0 µm to an average sarcomere length of 2.4 µm. Purely isometric reference contractions were performed at an average sarcomere length of 2.4 µm. Simultaneously with the force measurements, the ATP cost was measured during the last 30 s of isometric contractions using an enzyme-coupled assay. Stiffness was calculated during a quick stretch-release cycle of 0.2% fibre length performed once the steady state had been reached after active shortening and during the purely isometric reference contractions. Force and stiffness following active shortening were decreased by 10.0±1.8% and 11.0±2.2%, respectively, compared with the isometric reference contractions. Similarly, ATPase activity per second (not normalized to the force) showed a decrease of 15.6±3.0% in the force-depressed state compared with the purely isometric reference state. However, ATPase activity per second per unit of force was similar for the isometric contractions following active shortening (28.7±2.4 mmol l-1 mN-1 s mm3) and the corresponding purely isometric reference contraction (30.9±2.8 mmol l-1 mN-1 s mm3). Furthermore, the reduction in absolute ATPase activity per second was significantly correlated with force depression and stiffness depression. These results are in accordance with the idea that force depression following active shortening is primarily caused by a decrease in the proportion of attached cross-bridges. Furthermore, these findings, along with previously reported results showing a decrease in ATP consumption per unit of force after active muscle stretching, suggest that the mechanisms involved in the steady-state force after active muscle shortening and active muscle lengthening are of distinctly different origin.
Subgroup Detection in Ideological Discussions
Creators: name: Abu-Jbara, Amjad
name: Dasigi, Pradeep
name: Diab, Mona
name: Radev, Dragomir R.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Computer science
subject: Linguistics
subject: FOS: Languages and literature

description: The rapid and continuous growth of social networking sites has led to the emergence of many communities of communicating groups. Many of these groups discuss ideological and political topics. It is not uncommon that the participants in such discussions split into two or more subgroups. The members of each subgroup share the same opinion toward the discussion topic and are more likely to agree with members of the same subgroup and disagree with members from opposing subgroups. In this paper, we propose an unsupervised approach for automatically detecting discussant subgroups in online communities. We analyze the text exchanged between the participants of a discussion to identify the attitude they carry toward each other and towards the various aspects of the discussion topic. We use attitude predictions to construct an attitude vector for each discussant. We use clustering techniques to cluster these vectors and, hence, determine the subgroup membership of each participant. We compare our methods to text clustering and other baselines, and show that our method achieves promising results.
The trace formula for a point scatterer on a compact hyperbolic surface
Creators: name: Ueberschaer, Henrik
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An exact trace formula for the perturbation of the Laplacian by a Dirac delta potential on a compact hyperbolic Riemann surface is derived. The formula can be considered an analogue of the Selberg trace formula. The difference of perturbed and unperturbed trace is expressed as an identity term plus a sum over combinations of diffractive orbits which visit the position of the potential.
description: 32 pages; minor changes, fixed a mistake in the appendix
title: Fever and pain in the right iliac fossa : What the radiologist needs to know
Creators: name: Ben Mansoura, Wissem
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Observational
subject: Not applicable
subject: Inflammation
subject: Infection
subject: Acute
subject: Computer Applications-Detection, diagnosis
subject: Ultrasound
subject: CT
subject: Emergency
subject: Abdomen
subject: Abdominal Viscera
subject: Performed at one institution

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe the mostcommon pathologies presenting with septic syndrom of the right iliac fossa. To illustrate through a rich iconography of our institution the main radiological aspects of the pathologies most frequently...
Integration of Innovation Techniques for Electronics Design and Education
Creators: name: Marasco, Emily Ann
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: creativity
subject: engineering education
subject: innovation
subject: pedagogy
subject: creative thinking
subject: creative ability
subject: Education
subject: Education--Higher
subject: Engineering
subject: Engineering--Electronics and Electrical

description: Creative ability and innovative design have become essential skills for engineers as industries continue to face increasing technical challenges. Current engineering education initiatives focus on creativity within introductory and senior design courses, with limited work related to creative ability development within technical engineering courses. This thesis presents three contributions for integrating creative thinking and development in technical electrical and computer engineering education. The first contribution is the development of a course design architecture for planning courses with integrated creative learning outcomes. The second contribution is the development of a formalized project structure for designing technical projects that develop creative skills. The third contribution is the design of a hierarchy for developing creative thinking through divergent and convergent thinking processes. The developed approaches integrate concepts from engineering design processes, project management, entrepreneurship, arts education techniques, and game-based learning to create a unique set of standards for creative learning. The creativity and innovation pedagogy presented in this work will contribute to the development of emerging engineers capable of designing the technologies and solutions of the future.
Software-based Decoy System for Insider Threats
Creators: name: Park, Younghee
name: Stolfo, Salvatore
Publisher: name: Columbia University
Year: 2012
Subjects: Computer science

description: Decoy technology and the use of deception are useful in securing critical computing systems by confounding and confusing adversaries with fake information. Deception leverages uncertainty forcing adversaries to expend considerable effort to differentiate realistic useful information from purposely planted false information. In this paper, we propose software-based decoy system that aims to deceive insiders, to detect the exfiltration of proprietary source code. The proposed system generates believable Java source code that appear to an adversary to be entirely valuable proprietary software. Bogus software is generated iteratively using code obfuscation techniques to transform original software using various transformation methods. Beacons are also injected into bogus software to detect the exfiltration and to make an alert if the decoy software is touched, compiled or executed. Based on similarity measurement, the experimental results demonstrate that the generated bogus software is different from the original software while maintaining similar complexity to confuse an adversary as to which is real and which is not.
Correlated quantum dynamics of graphene
Creators: name: Rousse, F.
name: Eriksson, O.
name: Ogren, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Phase-space representations are a family of methods for dynamics of both bosonic and fermionic systems, that work by mapping the system's density matrix to a quasi-probability density and the Liouville-von Neumann equation of the Hamiltonian to a corresponding density differential equation for the probability. We investigate here the accuracy and the computational efficiency of one approximate phase-space representation, called the fermionic Truncated Wigner Approximation (fTWA), applied to the Fermi-Hubbard model. On a many-body 2D system, with hopping strength and Coulomb $U$ tuned to represent the electronic structure of graphene, the method is found to be able to capture the time evolution of first-order (site occupation) and second-order (correlation functions) moments significantly better than the mean-field, Hartree-Fock method. The fTWA was also compared to results from the exact diagonalization method for smaller systems, and in general the agreement was found to be good. The fully parallel computational requirement of fTWA scales in the same order as the Hartree-Fock method, and the largest system considered here contained 198 lattice sites.
title: The different faces of the multiple sclerosis plaques – sequences review
Creators: name: Hadjieva, Slaveya
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Prospective
subject: Image registration
subject: Imaging sequences
subject: MR
subject: Neuroradiology brain
subject: Neuro

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The aim of this study is to show and compare the visualization of Multiple Sclerosis (MS) plaques with different location and activity using Magnetic resonance (MR)...
Existence and uniqueness of linking systems: Chermak's proof via obstruction theory
Creators: name: Oliver, Bob
Publisher: name: arXiv
Year: 2012
Subjects: subject: Group Theory (math.GR)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: Primary 55R35. Secondary 20J05, 20N99, 20D20, 20D05

description: We present a version of a proof by Andy Chermak of the existence and uniqueness of centric linking systems associated to arbitrary saturated fusion systems. This proof differs from the one by Chermak in that it is based on the computation of higher derived functors of certain inverse limits. This leads to a much shorter proof, but one which is aimed mostly at researchers familiar with homological algebra.
Joint quantum estimation of loss and nonlinearity in driven-dissipative Kerr resonators
Creators: name: Asjad, Muhammad
name: Teklu, Berihu
name: Paris, Matteo G. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We address multiparameter quantum estimation for coherently driven nonlinear Kerr resonators in the presence of loss. In particular, we consider the realistic situation in which the parameters of interest are the loss rate and the nonlinear coupling, whereas the amplitude of the coherent driving is known and externally tunable. Our results show that this driven-dissipative model is asymptotically classical, i.e. the Uhlmann curvature vanishes, and the two parameters may be jointly estimated without any additional noise of quantum origin. We also find that the ultimate bound to precision, as quantified by the quantum Fisher information (QFI), increases with the interaction time and the driving amplitude for both parameters. Finally, we investigate the performance of quadrature detection, and show that for both parameters the Fisher information oscillates in time, repeatedly approaching the corresponding QFI.
title: MR Imaging of Pelvic Masses – A pictorial review of Ovarian and Extra Ovarian causes
Creators: name: Tazeen, Shaagoofa
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Inflammation
subject: Infection
subject: Haemorrhage
subject: Surgery
subject: Biopsy
subject: MR
subject: Pelvis
subject: Genital / Reproductive system female
subject: Genitourinary
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: ·MRI plays a central role in the diagnosis of these masses due to its unique tissue-specific multiplanar capabilities that allow optimal pelvic mass localization, excellent soft tissue contrast resolution and internal characterisation. ·A variety...
DNA Methylation Landscape of the Fibrinogen Gene Cluster in the Equine Embryo
Creators: name: Grant, Danielle Magann
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Fibrinogen
subject: Equine Embryo
subject: Fixation
subject: bisulphite sequencing
subject: Genetics
subject: FOS: Biological sciences
subject: Biology--Molecular
subject: Veterinary Science

description: The initial weeks of equine pregnancy includes the unique phase of embryo mobility from day 9 until fixation on day 15. Fixation of the embryo to the uterine wall occurs before a microvillous attachment at ~day 40. Throughout the mobility period the equine embryo expresses and secretes fibrinogen, a protein best known for its involvement in the coagulation cascade and wound repair. The aim of this MSc project was to contribute to the characterization of conceptus-derived fibrinogen at the time of fixation. We confirmed early embryo expression in the absence of hepatic activity, as well as describe expression by the later fetal-placenta. We characterized DNA methylation across the fibrinogen gene cluster for equine liver, day 14 embryos, and endometrium. The methylation landscape of equine embryos is distinct from both liver and endometrium. However, in key regulatory regions the embryo and liver profiles were the same. The similarity to liver methylation in known regulatory regions supports fibrinogen expression by the embryo and suggests its involvement in gene regulation. In addition to our genetic characterization, we trialed various in vitro assays in an attempt to determine the possible role of fibrinogen at the embryo-maternal interface. Overall this study has contributed to our ongoing effort to provide context for the novel extra-hepatic expression of fibrinogen by the pre-implantation conceptus.
Helical Organic and Inorganic Polymers
Creators: name: Hirata, S.
name: Shigeta, Y.
name: Xantheas, S. S.
name: Bartlett, R. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Despite being a staple of synthetic plastics and biomolecules, helical polymers are scarcely studied with Gaussian-basis-set {\it ab initio} electron-correlated methods on an equal footing with molecules. This article introduces an {\it ab initio} second-order many-body Green's-function [MBGF(2)] method with nondiagonal, frequency-dependent Dyson self-energy for infinite helical polymers using screw-axis-symmetry-adapted Gaussian-spherical-harmonics basis functions. Together with the Gaussian-basis-set density-functional theory for energies, analytical atomic forces, translational-period force, and helical-angle force, it can compute correlated energy, quasiparticle energy bands, structures, and vibrational frequencies of an infinite helical polymer, which smoothly converge at the corresponding oligomer results. These methods can handle incommensurable structures, which have an infinite translational period and are hard to characterize by any other method, just as efficiently as commensurable structures. We apply these methods to polyethylene ($2/1$ helix), polyacetylene (Peierls' system), and polytetrafluoroethylene ($13/6$ helix) to establish the quantitative accuracy of MBGF(2)/cc-pVDZ in simulating their (angle-resolved) ultraviolet photoelectron spectra, and of B3LYP/cc-pVDZ or 6-31G** in reproducing their structures, infrared and Raman band positions, phonon dispersions, and (coherent and incoherent) inelastic neutron scattering spectra. We then predict the same properties for infinitely catenated chains of nitrogen or oxygen and discuss their possible metastable existence under ambient conditions. They include planar zigzag polyazene (N$_2$)$_x$ (Peierls' system), $11/3$-helical isotactic polyazane (NH)$_x$, $9/4$-helical isotactic polyfluoroazane (NF)$_x$, and $7/2$-helical polyoxane (O)$_x$ as potential high-energy-density materials.
title: Transition, volume 2, issue 10
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: December 4 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.
title: Radiological features and management of retained needles - A pictorial review
Creators: name: Conti, Marco
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Foreign bodies
subject: Diagnostic procedure
subject: Complications
subject: Ultrasound
subject: CT
subject: Conventional radiography
subject: Thorax
subject: Management
subject: Abdomen
subject: Emergency Imaging

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe clinical, technicaland imaging featuresof "retained needle...
Constructing static quark-anti-quark creation operators from Laplacian eigenmodes
Creators: name: Höllwieser, Roman
name: Knechtli, Francesco
name: Korzec, Tomasz
name: Peardon, Michael
name: Urrea-Niño, Juan Andrés
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate static quark anti-quark operators based on trial states formed from eigenvectors of the covariant three-dimensional lattice Laplace operator. We test the method by computing the static quark-anti-quark potential and comparing results to standard Wilson loop measurements. The new method is efficient not only for on-axis, but also for many off-axis quark-anti-quark separations when a fine spatial resolution is required. We further improve the ground-state overlap by using multiple eigenvector pairs, weighted with Gaussian profile functions of the eigenvalues, providing a variational basis. The method presented here can be applied to potential functions for all possible excitations of a gluonic string with fixed ends, hybrid or tetra-quark potentials, as well as static-light systems and allows visualization of the spatial distribution of the Laplace trial states.
title: Novel Radionuclides for Theranostics at the Bern Medical Cyclotron
Creators: name: Dellepiane, Gaia
Publisher: name: Universität Bern
Year: 2023
Subjects: subject: 530 Physics

description: Theragnostics in nuclear medicine is an emerging field involving the use of a pair of radionuclides to label biomedically relevant molecules for both diagnostic and therapeutic purposes. If the therapeutic radionuclide (alpha, beta minus or Auger emitter) and the diagnostic one (beta plus or gamma emitter) are isotopes of the same element, they exhibit identical kinetics and chemical reactivity and undergo the same metabolic processes. This allows to predict whether a patient will benefit from a therapeutic treatment based on nuclear imaging data, paving the way to the concept of personalized nuclear medicine. The availability of novel radionuclides in quality and quantity suitable for clinical applications is of paramount importance and represents an actual scientific challenge. One of the most promising solutions is their production using biomedical cyclotrons equipped with a solid target station, which constitutes the motivation of this PhD thesis.
In the framework of a research program ongoing at the cyclotron laboratory in operation at the Bern University Hospital (Inselspital), the production of some of the most interesting radionuclides for nuclear medicine applications, namely ⁴⁴Sc, ⁴⁷Sc, ⁶¹Cu, ⁶⁴Cu, ⁶⁷Cu, ⁶⁸Ga, ⁹⁹mTc, ¹⁵⁵Tb, ¹⁶⁵Er and ¹⁶⁷Tm, was investigated. These investigations were performed with an 18 MeV biomedical cyclotron equipped with a Solid Target Station (STS) and a 6-m-long Beam Transfer Line (BTL). The cross sections of the reactions producing these radionuclides and their impurities in the energy range of interest were measured, for some of which there were no previous experimental data reported in the literature. Because more than one reaction often participates in radionuclide production, a specific method to disentangle the different nuclear contributions to the production cross section was developed. Based on the results obtained, irradiation parameters maximizing the production yield and the radionuclidic purity were determined. These predictions were confirmed by performing several production tests with the STS. Furthermore, new irradiation and measurement procedures to optimize the radionuclide production were developed. The promising results achieved represent an important step towards the establishment of an efficient and reliable radioisotope supply using medical cyclotrons in view of theragnostic applications in nuclear medicine.
Mitt Romney's Very Bad Week
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Political science
subject: FOS: Political science

description: As an inexperienced first-time candidate who had served only four years in elected office, Romney managed to barely beat out Mike Huckabee to secure a number two finish in the 2008 primaries, and was able to leverage that into frontrunner status in 2012. Last week, however, this all changed; at least it appeared to have changed. Romney lost two primaries last week, which is particularly noteworthy given that voters only voted in one state last week. However, in addition to finishing second to Gingrich in South Carolina, Romney also was stripped of his Iowa caucus victory as final vote tallies showed the winner in Iowa to be Rick Santorum. Romney's status as frontrunner was damaged by his bad week, but he still remains by far the most likely Republican to get the nomination.