cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Neurochemical Correlates of Executive Functions in Children with Attention-Deficit/Hyperactivity Disorder
Creators: name: Hai, Tasmia Mobashera
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: ADHD
subject: GLUTAMATE
subject: EXECUTIVE FUNCTIONS
subject: MAGNETIC RESONANCE SPECTROSCOPY
subject: biomarkers
subject: Educational Psychology

description: The current study investigated spectroscopic biomarkers in children with Attention-Deficit/Hyperactivity Disorder (ADHD) and examined neurochemical correlates of Executive Function (EF). Proton Magnetic Resonance Spectroscopy (1H-MRS; TE = 30ms) was conducted in the right prefrontal cortex (RPFC) and left striatum (LS). Twenty-one children with ADHD and 15 control participants took part. Both groups completed performance-based EF tasks. Results indicated lower concentrations of glutamate (p = .009), choline (p = .016), and N-acetyl aspartate (p = .029) in the RPFC in ADHD participants compared to controls. There were no significant differences in the LS. Positive correlations with glutamate concentration and performance in working memory and verbal fluency tasks in the control group were observed. No significant correlations were found in the ADHD group. Findings indicate neurochemical differences between children with ADHD and healthy controls. Additionally, decoupling effects of glutamate were observed indicating glutamate as a possible spectroscopic biomarker for ADHD and novel treatment target.
Low-energy M1 states in deformed nuclei: spin-scissors or spin-flip?
Creators: name: Nesterenko, V. O.
name: Vishnevskiy, P. I.
name: Repko, A.
name: Kvasil, J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The low-energy $M1$ states in deformed $^{164}$Dy and spherical $^{58}$Ni are explored in the framework of fully self-consistent Quasiparticle Random-Phase Approximation (QRPA) with various Skyrme forces. The main attention is paid to orbital and spin $M1$ excitations. The obtained results are compared with the prediction of the low-energy {\it spin-scissors} $M1$ resonance suggested within Wigner Function Moments (WFM) approach. A possible relation of this resonance to low-energy spin-flip excitations is analyzed. In connection with recent WFM studies, we consider evolution of the low-energy spin-flip states in $^{164}$Dy with deformation (from the equilibrium value to the spherical limit). The effect of tensor forces is briefly discussed. It is shown that two groups of $1^+$ states observed at 2.4-4 MeV in $^{164}$Dy are rather explained by fragmentation of the orbital $M1$ strength than by the occurrence of the collective spin-scissors resonance. In general, our calculations do not confirm the existence of this resonance.
description: 7 pages, 7 figures, submitted to Physics of Atomic Nuclei. arXiv admin note: text overlap with arXiv:2102.13580. As compared with the previous version, Ref. [1] was removed, Ref [33] was replaced, description of Fig. 3 was modified
On The Origin Of High Energy Correlations in Gamma-ray Bursts
Creators: name: Kocevski, Daniel
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: I investigate the origin of the observed correlation between a GRB's nuFnu spectral peak Epk and its isotropic equivalent energy Eiso through the use of a population synthesis code to model the prompt gamma-ray emission from GRBs. By using prescriptions for the distribution of prompt spectral parameters as well as the population's luminosity function and co-moving rate density, I generate a simulated population of GRBs and examine how bursts of varying spectral properties and redshift would appear to a gamma-ray detector here on Earth. I find that a strong observed correlation can be produced between the source frame Epk and Eiso for the detected population despite the existence of only a weak and broad correlation in the original simulated population. The energy dependance of a gamma-ray detector's flux-limited detection threshold acts to produce a correlation between the source frame Epk and Eiso for low luminosity GRBs, producing the left boundary of the observed correlation. Conversely, very luminous GRBs are found at higher redshifts than their low luminosity counterparts due to the standard Malquest bias, causing bursts in the low Epk, high Eiso regime to go undetected because their Epk values would be redshifted to energies at which most gamma-ray detectors become less sensitive. I argue that it is this previously unexamined effect which produces the right boundary of the observed correlation. Therefore, the origin of the observed correlation is a complex combination of the instrument's detection threshold, the intrinsic cutoff in the GRB luminosity function, and the broad range of redshifts over which GRBs are detected. These simulations serve to demonstrate how selection effects caused by a combination of instrumental sensitivity and the cosmological nature of an astrophysical population can act to produce an artificially strong correlation between observed properties.
description: 9 pages, 12 figures, submitted to ApJ
title: Emergency cervical spine trauma: Spectrum of injuries and Imaging pictorial review
Creators: name: Garg, LOVISH
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Trauma
subject: Education
subject: Digital radiography
subject: CT
subject: Trauma
subject: Emergency
subject: Emergency Imaging

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Learning objectives 1. Imaging indication and guidelines for cervical trauma. 2. Role of imaging in diagnosis of various occult and missed cervical spinal injuries. 3. Approach to interpreting and imaging cervical spine trauma. 4. Spectrum of...
Bipartite Euler systems
Creators: name: Howard, Benjamin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: If E is an elliptic curve over Q and K is an imaginary quadratic field, there is an Iwasawa main conjecture predicting the behavior of the Selmer group of E over the anticyclotomic Z_p-extension of K. The main conjecture takes different forms depending on the sign of the functional equation of L(E/K,s). In the present work we combine ideas of Bertolini and Darmon with those of Mazur and Rubin to shown that the main conjecture, regardless of the sign of the functional equation, can be reduced to proving the nonvanishing of sufficiently many p-adic L-functions attached to a family of congruent modular forms.
Noise Robust Pitch Tracking by Subband Autocorrelation Classification
Creators: name: Ellis, Daniel P. W.
name: Lee, Byunk Suk
Publisher: name: Columbia University
Year: 2012
Subjects: Electrical engineering

description: Pitch tracking algorithms have a long history in various applications such as speech coding and extracting information, as well as other domains such as bioacoustics and music signal processing. While autocorrelation is a useful technique for detecting periodicity, autocorrelation peaks suffer ambiguity, leading to the classic “octave error” in pitch tracking. Moreover, additive noise can affect autocorrelation in ways that are difficult to model. Instead of explicitly using the most obvious features of autocorrelation, we present a trained classifier-based approach which we call Subband Autocorrelation Classification (SAcC). A multi-layer perceptron classifier is trained on the principal components of the autocorrelations of subbands from an auditory filterbank. Training on bandlimited and noisy speech (processed to simulate a low-quality radio channel) leads to a great increase in performance over state-of-the-art algorithms, according to both the traditional GPE measure, and a proposed novel Pitch Tracking Error which more fully reflects the accuracy of both pitch extraction and voicing detection in a single measure.
Engineering Optomechanically Induced Transparency by coupling a qubit to a spinning resonator
Creators: name: Burns, Jessica
name: Root, Owen
name: Jing, Hui
name: Mirza, Imran M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We theoretically study the spectral properties of a pump-probe driven hybrid spinning optomechanical ring resonator optically coupled with a two-level quantum emitter (QE or qubit). Recently we have shown [arXiv:1810.03709] that in the absence of the emitter the coupled cavity version of this setup is not only capable of nonreciprocal light propagation but can also exhibit slow & fast light propagation. In this work, we investigate in what ways the presence of a single QE coupled with the optical whispering gallery modes of the spinning optomechanical resonator can alter the probe light nonreciprocity. Under the weak-excitation assumption and mean-field approximation, we find that the interplay between the rotational/spinning Sagnac-effect and the qubit coupling can lead to the enhancement both in the optomechanically induced transparency (OMIT) peak value and in the width of the transparency window due to the opening of qubit-assisted back reflection channel. However, compared to the no-qubit case, we notice that such an enhancement comes at the cost of degrading the group delay in probe light transmission by a factor of 1/2 for clockwise rotary directions. The target applications of these results can be in the areas of quantum circuitry and in non-reciprocal quantum communication protocols where QEs are a key component.
description: 9 pages, 6 figures
Microbial Fuel Cell Application for Carbonaceous and Enhanced Biological Nutrient Remediation with Cathodic Nitrate Reduction
Creators: name: Arowobusoye, Bankole
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Microbial Fuel Cell
subject: MFC
subject: Denitrification
subject: Wastewater treatment
subject: Engineering

description: Conventional methods of carbon and nutrient remediation suffer from problems like high costs, complexity and lack of scalability, hence a sustainable alternative is sought. The Microbial Fuel Cell (MFC) could be such alternative; however, MFCs have historically been used for electrical energy generation and not for nutrient remediation. Furthermore, most MFCs were historically operated on carbonaceous wastewater only, hence incapable of denitrification. I investigated simultaneous carbon and nutrient remediation by bench-scale batch experimenting with Cathodic Nitrate Reducing MFC, as alternative to conventional methods, using Calgary, Alberta’s Bonnybrook Treatment Plant’s wastewater. I demonstrated non-impediment of MFC’s electrical capability by nutrient amendment, adding wastewater only and then nutrients to two MFCs. One MFC had oxygenated cathode, the second, nitrate-reducing anoxic cathode. Average voltage for nutrient-amended oxygenated MFCs runs at 280.7 mV exceeded 79.55 mV for non-nutrient-amended. Average voltage for nitrate cathode MFC’s nutrient-amended runs at 89 mV exceeded 41.3 mV for non-nutrient amended runs. However, beyond 200mg/L nitrates, electrical performance declines. I further experimented in two stages and used student-t analysis and hypothesis testing to prove kinematic rates of MFC’s denitrification was superior to a conventional denitrification control chamber. In the first stage, I added nutrients, but no methanol to the control: and the MFC’s denitrification rate at 0.82 mg/L/h exceeded control’s rate of 0.61 mg/L/h, with 90% confidence. In second stage, with methanol in control chamber: the MFC denitrification rate of 0.97 mg/L/h still outperformed control rate of 0.86 mg/L/h, with 75% confidence. Finally, I eliminated nitrites from MFC and control, but added nitrates. Subsequent nitrite detection experiments yielded positive result, further confirming the MFC’s denitrifying capability. I detected a nitrite/nitrate ratio of 0.24 in MFC, which was lower than the control’s nitrite/nitrate ratio of 0.29. I observed nitrite level may be boosted in MFC by adding methanol. Methanol addition apparently increased nitrite/nitrate ratio in the MFC to 0.61, exceeding control’s ratio of 0.32. This thesis demonstrates the MFC’s viability for carbon and nutrient remediation and may provide basis for further research on generating nitrites for methods dependent on nitrites, such as the Anammox process.
Phase separation in low-density neutron matter
Creators: name: Gezerlis, Alexandros
name: Sharma, Rishi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Low-density neutron matter has been studied extensively for many decades, with a view to better understanding the properties of neutron-star crusts and neutron-rich nuclei. Neutron matter is beyond experimental control, but in the past decade it has become possible to create systems of fermionic ultracold atomic gases in a regime close to low-density neutron matter. In both these contexts pairing is significant, making simple perturbative approaches impossible to apply and necessitating ab initio microscopic simulations. Atomic experiments have also probed polarized matter. In this work, we study population-imbalanced neutron matter (possibly relevant to magnetars and to density functionals of nuclei) arriving at the lowest-energy configuration to date. For small to intermediate relative fractions the system turns out to be fully normal, while beyond a critical polarization we find phase coexistence between a partially polarized normal neutron gas and a balanced superfluid gas. As in cold atoms, a homogeneous polarized superfluid is close to stability but not stable with respect to phase separation. We also study the dependence of the critical polarization on the density.
description: 7 pages, 3 figures
title: Deconstructing Lymphomas.
Creators: name: Raghavan, Bagyam
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Lymphoma
subject: Treatment effects
subject: Staging
subject: Education
subject: PET-CT
subject: Lymph nodes
subject: Oncologic Imaging

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The objective of our presntation is to understand the Lexicon of classification of lymphoma based on anatomy & pathogenesis and imaging finding with appropriate imaging modality with respect to staging and response assesment of the...
Exploring the Linguistic Profile of Gifted ESL Students
Creators: name: Kilani, Hoda
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: English as a second language (ESL)
subject: giftedness
subject: personal traits
subject: socio-cultural influences
subject: vocabulary development
subject: Education--Bilingual and Multicultural
subject: Education--Curriculum and Instruction
subject: Educational Psychology
subject: Education--Guidance and Counseling
subject: Education--Language and Literature
subject: Education--Special

description: This study gleaned insights into the linguistic profile of gifted English as second language students (ESL). It explored students’, parents’, and teachers’ views of the gifted ESL journey of linguistic development through discussions on vocabulary development strategies, personal traits, and socio-cultural influences. Exploration used a single case study and gave voice to a purposive sample of four students, two parents, and three teachers. Data consisted of Expressive One-Word Picture Vocabulary Test (Martin, & Brownell, 2016), background survey, Duckworth’s 12-Item Grit Scale (2016b), Oxford’s Strategy Inventory for Language Learning (1990), focus groups with all participant groups, and interviews with students. The setting was a K-12 school where students (a) were enrolled in the same school, (b) were predominantly taught in English, (c) arrived to school with knowledge of a language other than English, (d) identified by the school as gifted and ESL, and (e) were in Grade 8 or 9. Students’ profiles showed that developing academic language is important for school success and should not be limited to determining efficacious linguistic strategies as it is also connected to interest and motivation. Parents’ and teachers’ data confirmed students’ results. Findings suggested that the ‘good’ gifted language learner consciously deploys (a) linguistic strategies, (b) personal traits, and (c) socio-cultural influences for linguistic development. The study proposed a vocabulary development model that classroom practitioners can adopt and adapt. The purpose is to initiate discussions and invite new research on pedagogies that enable academic vocabulary expansion among gifted ESL students.
title: Arterial spin labeling (ASL) Artifacts in High Field MRI.
Creators: name: Thomas, Theofanis
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: MRI
subject: Radiographers
subject: MR
subject: MR-Diffusion/Perfusion
subject: Education
subject: Artifacts
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: The purpose of this poster is to present the common artifacts which appear in the Arterial Spin Labelling (ASL) sequences that performed in high magnetic field MR...
title: Transition, volume 2, issue 1
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: September 22 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 classical Lie-Yamaguti Yang-Baxter equation and Lie-Yamaguti bialgebras
Creators: name: Zhao, Jia
name: Qiao, Yu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Rings and Algebras (math.RA)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B38, 16T25, 17A30, 17B81

description: In this paper, we develop the bialgebra theory for Lie-Yamaguti algebras. For this purpose, we exploit two types of compatibility conditions: local cocycle condition and double construction. We define the classical Yang-Baxter equation in Lie-Yamaguti algebras and show that a solution to the classical Yang-Baxter equation corresponds to a relative Rota-Baxter operator with respect to the coadjoint representation. Furthermore, we generalize some results by Bai in [1] and Semonov-Tian-Shansky in [19] to the context of Lie-Yamaguti algebras. Then we introduce the notion of matched pairs of Lie-Yamaguti algebras, which leads us to the concept of double construction Lie-Yamaguti bialgebras following the Manin triple approach to Lie bialgebras. We prove that matched pairs, Manin triples of Lie-Yamaguti algebras, and double construction Lie-Yamaguti bialgebras are equivalent. Finally, we clarify that a local cocycle condition is a special case of a double construction for Lie-Yamaguti bialgebras.
Beehabilitation on Spaceship Earth
Creators: name: McLernon, Dylan
Publisher: name: Arts
Year: 2018
Subjects: subject: eco-art
subject: public art
subject: bees
subject: research creation
subject: relational aesthetics
subject: community-based art
subject: community based participatory research
subject: Collaboration
subject: field research
subject: beehabilitation
subject: spaceship earth
subject: Fine Arts
subject: Education--Art
subject: Ecology
subject: FOS: Biological sciences

description: “Spaceship Earth” is an enclosed ecosystem where the survival of all crew members depends on our ability to coexist (Ward). Currently, important life support systems on Spaceship Earth are malfunctioning due to human neglect. One result of this malfunction is the rapid decline of fellow crew members such as bees. Humans rely on bees to help pollinate over one-third of our food supply. Thus, our survival is inevitably linked to bee health. With all crew members of Spaceship Earth in mind: What could an ecological space look like where human beings live harmoniously and productively with bees? Beehabilitation on Spaceship Earth is an eco-art initiative that is focused on engaging citizens as actors towards the study and ecology of Calgary’s urban bumblebee populations. In a collaborative effort with Dr. Ralph Cartar from the department of Bioscience, small ceramic sculptures called Bumblebee Domiciles have been designed and field tested. As part of my graduate exhibit in the Nickle Galleries, Bumblebee Domiciles are being offered to the public for free. People who choose to take a Bumblebee Domicile are expected to take part in a community-based art project, to answer five questions about the sculptures functionality. Beehabilitation utilizes Research Creation as an overarching methodology, underpinned by Community-Based Participatory Research (CBPR) and Relational Aesthetics. Supporting methods include observation, field testing, and collaboration. My research is contextualized within an eco-art philosophy to minimize negative impacts on the planet, while maximizing positive impacts for bees. Preliminary findings from Dr. Ralph Cartar’s field tests show a forty-percent occupancy rate in Tree Domiciles. The importance of native bee ecology on Spaceship Earth cannot be overstated. Beehabiltation will educate the public about urban bee populations and ways to create mutual spaces for humans and bees.
Schrödinger-Lohe type models of quantum synchronization with nonidentical oscillators
Creators: name: Antonelli, Paolo
name: Reynolds, David N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q40 (Primary) 35B40, 81P40 (Secondary)

description: We study the asymptotic emergent dynamics of two models that can be thought of as extensions of the well known Schrödinger-Lohe model for quantum synchronization. More precisely, the interaction strength between different oscillators is determined by intrinsic parameters, following Cucker-Smale communication protocol. Unlike the original Schrödinger-Lohe system, where the interaction strength was assumed to be uniform, in the cases under our consideration the total mass of each quantum oscillator is allowed to vary in time. A striking consequence of this property is that these extended models yield configurations exhibiting phase, but not space, synchronization. The results are mainly based on the analysis of the ODE systems arising from the correlations, control over the well known Cucker-Smale dynamics, and the dynamics satisfied by the quantum order parameter.
description: 18 pages, minor changes and submitted
Exploring Awareness of a Palliative Approach: A Constructivist Grounded Theory Study
Creators: name: Tellier, Leah
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Nursing
subject: FOS: Health sciences

description: Chronic diseases are the leading cause of death in Canada. Advanced cancer, chronic obstructive pulmonary disease (COPD), congestive heart failure, and advanced dementia are life-limiting conditions that would benefit from a palliative approach to care. There is minimal Canadian literature that explores healthcare providers’ knowledge and awareness of introducing a palliative approach for patients living with chronic disease. This thesis outlines a qualitative study using grounded theory methodology, to explore the knowledge, perspectives, and beliefs of healthcare professionals who care for individuals with chronic life-limiting illness. In this study, interviews were conducted to explore healthcare professionals’ understanding of a palliative approach to care, available resources, and their beliefs about introducing a palliative approach earlier in the illness trajectory for patients living with chronic disease. Data was collected and analyzed using constructivist grounded theory methodology. Findings from this study have determined the need for increased awareness of a palliative approach for patients living with chronic disease as well as the resources available for physicians and nurses to make appropriate referrals for patients who would benefit from early palliative care initiatives. In addition, the long-term objective is to decrease the amount of Emergency Department visits and acute care admissions as well as improve quality of life for patients living with chronic disease by increasing access to community palliative care resources through early referral.
title: Extra mural venous invasion (EMVI) in rectal cancer: What a radiologist must know?
Creators: name: CRUZ, ITALO
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Neoplasia
subject: Epidemiology
subject: Cancer
subject: Perception image
subject: Decision analysis
subject: MR-Enterography
subject: Oncology
subject: Gastrointestinal tract
subject: Colon
subject: GI Tract

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Identify in the Magnetic Resonance Imaging (MRI) standardized protocol for rectal lesions presentations in colorectal cancer, mostly with extramural venous invasion (EMVI) ; Present a brief review of colorectal anatomy emphasizing venous drainag e...
Romney's Weakness as a Candidate
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Political science
subject: FOS: Political science

description: As Romney has campaigned for president, it has become increasingly clear that while he is smart, well-spoken, looks presidential and has an attractive family, he is also not a strong campaigner with little ability to build connections with people or inspire excitement from supporters.
Star Formation and AGN activity in Galaxies classified using the 1.6 μm Bump and PAH features at $z = 0.4-2$
Creators: name: Hanami, Hitoshi
name: Ishigaki, Tsuyoshi
name: Fujishiro, Naofumi
name: Nakanishi, Kouichiro
name: Miyaji, Takamitsu
name: Krumpe, Mirko
name: Umetsu, Keiichi
name: Ohyama, Youichi
name: Shim, Hyun Jin
name: Im, Myungshin
name: Lee, Hyoung Mok
name: Lee, Myung Gyoon
name: Serjeant, Stephen
name: White, Glenn J.
name: Willmer, Christopher N.
name: Goto, Tomotsugu
name: Oyabu, Shinki
name: Takagi, Toshinobu
name: Wada, Takehiko
name: Matsuhara, Hideo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have studied the star-formation and AGN activity of massive galaxies in the redshift range $z=0.4-2$, which are detected in a deep survey field using the AKARI InfraRed (IR) astronomical satellite and {\em Subaru} telescope toward the North Ecliptic Pole (NEP). The AKARI/IRC Mid-InfraRed (MIR) multiband photometry is used to trace their star-forming activities with the Polycyclic-Aromatic Hydrocarbon (PAH) emissions, which is also used to distinguish star-forming populations from AGN dominated ones and to estimate the Star Formation Rate (SFR) derived from their total emitting IR (TIR) luminosities. In combination with analyses of their stellar components, we have studied the MIR SED features of star-forming and AGN-harboring galaxies.
description: 45 pages and 63 figures, will be published in PASJ Vol.64 No.4
Top 100 Most Cited Papers in Laser-Assisted in situ Keratomileusis Surgery: A Bibliometric Analysis
Creators: name: Flynn, Erin
name: Pakhchanian, Haig
name: Sohal, Preet
name: Gupta, Rishabh
name: Raiker, Rahul
name: Asahi, Masumi G.
name: Belyea, David
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Science Policy

description: To conduct a bibliometric analysis of the 100 most cited publications on LASIK using the Scientific Information (ISI) Web of Knowledge database. This analysis used keyword-specific searches within the Web of Science database to isolate the 100 most frequently cited LASIK articles published between 1996 and 2019 (T100). Number of citations per article and per year were quantified from 1996 to 2019. Title, authors (as well as affiliated institutions and countries of origin), journal, year of publication, and citation frequency were variables analyzed. Of the T100 articles, each article was cited between 103 to 411 times with a mean of 167 citations. Between 0-11 articles in the T100 were published every year on average with a median of 5 publications per year. The highest concentration of T100 publications occurred between 2003 and 2008 at 51%. A decrease in the annual publication rate of influential articles was observed after 2010 at 23%; 39.1% of these articles compared LASIK to newer refractive surgical approaches. The highest number of T100 articles were from the Journal of Refractive Surgery. The University of California System produced the highest number of T100 articles. The author with the most articles in the T100 is Dan Z. Reinstein. Most T100 articles originated from the United States. The peak of influential LASIK research occurred between 2000-2010, likely due to topics such as postprocedural corneal ectasia and the femtosecond laser approach. While newer surgical techniques such as SMILE may have contributed to the decline in the annual rate of LASIK-related publication, the underlying cause for this decline is unclear.
BSDEs in Utility Maximization with BMO Market Price of Risk
Creators: name: Frei, Christoph
name: Mocha, Markus
name: Westray, Nicholas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: Portfolio Management (q-fin.PM)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 60H10, 91G80

description: This article studies quadratic semimartingale BSDEs arising in power utility maximization when the market price of risk is of BMO type. In a Brownian setting we provide a necessary and sufficient condition for the existence of a solution but show that uniqueness fails to hold in the sense that there exists a continuum of distinct square-integrable solutions. This feature occurs since, contrary to the classical Ito representation theorem, a representation of random variables in terms of stochastic exponentials is not unique. We study in detail when the BSDE has a bounded solution and derive a new dynamic exponential moments condition which is shown to be the minimal sufficient condition in a general filtration. The main results are complemented by several interesting examples which illustrate their sharpness as well as important properties of the utility maximization BSDE.
description: 33 pages, 1 figure
De Se Attitudes: Lewisian Self-Ascription and Centered Worlds
Creators: name: Reyes, Stephanie Lauren
Publisher: name: Arts
Year: 2018
Subjects: subject: philosophy of language
subject: semantics
subject: metaphysics
subject: Epistemology
subject: Philosophy
subject: FOS: Philosophy, ethics and religion

description: This thesis examines and analyses notable arguments for and against the view that de se attitudes pose a problem for traditional accounts of propositional attitudes. On traditional accounts, the contents of attitudes are propositions. David Lewis challenges this notion and argues that de se attitudes have unique features that cannot be accommodated on traditional accounts. He offers a revisionary centered worlds semantics for de se attitudes by proposing that the contents of attitudes are properties. The main argument in this thesis is that de se attitudes are problematic for traditional accounts and Lewis' centered worlds offers us the most resources to account for de se puzzles and cases. In chapter 1, I introduce traditional accounts of attitudes. Chapter 2 outlines Lewis' centered worlds and we discuss the reasons he abandoned his possible worlds model. Then, we analyze arguments for the view that de se attitudes pose a problem for traditional accounts in chapter 3. Chapter 4 discusses the arguments against the view that de se attitudes need a special semantics and I offer ways a Lewisian can resist the force of these arguments.
Constraints on axionlike particles from a combined analysis of three flaring $\textit{Fermi}$ flat-spectrum radio quasars
Creators: name: Davies, James
name: Meyer, Manuel
name: Cotter, Garret
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Many theories beyond the Standard Model of particle physics predict the existence of axionlike particles (ALPs) that mix with photons in the presence of a magnetic field. Searching for the effects of ALP-photon mixing in gamma-ray observations of blazars has provided some of the strongest constraints on ALP parameter space so far. Previously, only individual sources have been analysed. We perform a combined analysis on $\textit{Fermi}$ Large Area Telescope data of three bright, flaring flat-spectrum radio quasars, with the blazar jets themselves as the dominant mixing region. For the first time, we include a full treatment of photon-photon dispersion within the jet, and account for the uncertainty in our B-field model by leaving the field strength free in the fitting. Overall, we find no evidence for ALPs, but are able to exclude the ALP parameters $m_a\lesssim200$ neV and $g_{aγ}\gtrsim 5 \times 10^{-12}$ GeV$^{-1}$ with 95\% confidence.
description: 18 pages, 14 figures; published Physical Review D; matches published version
Diffuse Structured Light
Creators: name: Nayar, Shree K.
name: Gupta, Mohit
Publisher: name: Columbia University
Year: 2012
Subjects: Computer science

description: Today, structured light systems are widely used in applications such as robotic assembly, visual inspection, surgery, entertainment, games and digitization of cultural heritage. Current structured light methods are faced with two serious limitations. First, they are unable to cope with scene regions that produce strong highlights due to specular reflection. Second, they cannot recover useful information for regions that lie within shadows. We observe that many structured light methods use illumination patterns that have translational symmetry, i.e., two-dimensional patterns that vary only along one of the two dimensions. We show that, for this class of patterns, diffusion of the patterns along the axis of translation can mitigate the adverse effects of specularities and shadows. We show results for two applications - 3D scanning using phase shifting of sinusoidal patterns and separation of direct and global components of light transport using high-frequency binary stripes.
On the Galois groups of sextic trinomials
Creators: name: Brown, Stephen Christopher
Publisher: name: University of British Columbia
Year: 2011

description: It is well known that the general polynomial a_n*x^n + a_{n-1}*x^{n-₋¹} + ... + a₁x + a_0 cannot be solved algebraically for n ≥ 5; that is, it cannot be solved in terms of a finite number of arithmetic operations and radicals. We can, however, associate every irreducible sextic polynomial with a Galois group. The Galois group of a given polynomial can give us a great deal of information about the nature of the roots of a polynomial and it can also tell us if the polynomial itself is algebraically solvable. This leads to the typical problem in Galois theory: finding the Galois group of a given polynomial. In this thesis, we investigate the inverse problem: for a specific Galois group, what irreducible polynomials occur. More specifically, we look at monic trinomials - polynomials with only three terms, having 1 as the leading coeficient. The first unresolved case of trinomials are of degree six and we will look specifically at trinomials of the form x⁶ + ax + b. We begin by investigating families of these trinomials that will result in Galois groups having a particular structure. From these families of trinomials, we can then make a final determination of individual Galois groups after eliminating any reducible possibilities. In the main calculations of this thesis, we investigate two parametric families of trinomials, one of which is given in [1]. From these families we completely characterize five of the possible sixteen Galois groups that can occur for sextic polynomials. In the notation of Butler and Mckay [2], these groups are 6T1, 6T2, 6T4, 6T5, and 6T6. In the final determination of these polynomials, rational points are found on genus 2 curves using a method known as elliptic Chabauty. We give an introduction to Galois theory followed by a brief explanation of the methods used to attain our results. We then discuss our results and proceed to prove them through the use of powerful software such as MAPLE (tm) and the Magma algebra system [3].
title: Don’t overlook the thoracic aorta – a guide to a systematic approach
Creators: name: Prata, Rita
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Vascular
subject: Arteries / Aorta
subject: Thorax
subject: Vascular
subject: CT
subject: Education
subject: Arteriosclerosis
subject: Congenital
subject: Dilatation
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Identify and characterize the most common pathologies of the thoracic aorta by categories: congenital, degenerative, traumatic, infectious and inflammatory conditions. Demonstrate some examples of endovascular and surgically treated aortic disease....
Heating of Flare Loops With Observationally Constrained Heating Functions
Creators: name: Qiu, Jiong
name: Liu, Wen-Juan
name: Longcope, Dana W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We analyze high cadence high resolution observations of a C3.2 flare obtained by AIA/SDO on August 1, 2010. The flare is a long duration event with soft X-ray and EUV radiation lasting for over four hours. Analysis suggests that magnetic reconnection and formation of new loops continue for more than two hours. Furthermore, the UV 1600Å observations show that each of the individual pixels at the feet of flare loops is brightened instantaneously with a timescale of a few minutes, and decays over a much longer timescale of more than 30 minutes. We use these spatially resolved UV light curves during the rise phase to construct empirical heating functions for individual flare loops, and model heating of coronal plasmas in these loops. The total coronal radiation of these flare loops are compared with soft X-ray and EUV radiation fluxes measured by GOES and AIA. This study presents a method to observationally infer heating functions in numerous flare loops that are formed and heated sequentially by reconnection throughout the flare, and provides a very useful constraint to coronal heating models.
description: This paper is revised
title: Transition, volume 2, issue 7
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: November 5 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.
Theory of spin dynamics of magnetic adatoms traced by time-resolved scanning tunneling spectroscopy
Creators: name: Schüler, Michael
name: Pavlyukh, Yaroslav
name: Berakdar, Jamal
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The inelastic scanning tunneling microscopy (STM) has been shown recently (Loth et al. Science 329, 1628 (2010)) to be extendable as to access the nanosecond, spin-resolved dynamics of magnetic adatoms and molecules. Here we analyze theoretically this novel tool by considering the time-resolved spin dynamics of a single adsorbed Fe atom excited by a tunneling current pulse from a spin-polarized STM tip. The adatom spin-configuration can be controlled and probed by applying voltage pulses between the substrate and the spin-polarized STM tip. We demonstrate how, in a pump-probe manner, the relaxation dynamics of the sample spin is manifested in the spin-dependent tunneling current. Our model calculations are based on the scattering theory in a wave-packet formulation. The scheme is nonpertubative and hence, is valid for all voltages. The numerical results for the tunneling probability and the conductance are contrasted with the prediction of simple analytical models and compared with experiments.
description: 21 pages, 8 figures
Ground-Truth Transcriptions of Real Music from Force-Aligned MIDI Syntheses
Creators: name: Turetsky, Robert J.
name: Ellis, Daniel P. W.
Publisher: name: Columbia University
Year: 2003
Subjects: Electrical engineering
Artificial intelligence

description: Many modern polyphonic music transcription algorithms are presented in a statistical pattern recognition framework. But without a large corpus of real-world music transcribed at the note level, these algorithms are unable to take advantage of supervised learning methods and also have difficulty reporting a quantitative metric of their performance, such as a Note Error Rate. We attempt to remedy this situation by taking advantage of publicly-available MIDI transcriptions. By force-aligning synthesized audio generated from a MIDI transcription with the raw audio of the song it represents we can correlate note events within the MIDI data with the precise time in the raw audio where that note is likely to be expressed. Having these alignments will support the creation of a polyphonic transcription system based on labeled segments of produced music. But because the MIDI transcriptions we find are of variable quality, an integral step in the process is automatically evaluating the integrity of the alignment before using the transcription as part of any training set of labeled examples. Comparing a library of 40 published songs to freely available MIDI files, we were able to align 31 (78%). We are building a collection of over 500 MIDI transcriptions matching songs in our commercial music collection, for a potential total of 35 hours of note-level transcriptions, or some 1.5 million note events.
Side-Informed Steganography for JPEG Images by Modeling Decompressed Images
Creators: name: Butora, Jan
name: Bas, Patrick
Publisher: name: arXiv
Year: 2022
Subjects: subject: Multimedia (cs.MM)
subject: Cryptography and Security (cs.CR)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Side-informed steganography has always been among the most secure approaches in the field. However, a majority of existing methods for JPEG images use the side information, here the rounding error, in a heuristic way. For the first time, we show that the usefulness of the rounding error comes from its covariance with the embedding changes. Unfortunately, this covariance between continuous and discrete variables is not analytically available. An estimate of the covariance is proposed, which allows to model steganography as a change in the variance of DCT coefficients. Since steganalysis today is best performed in the spatial domain, we derive a likelihood ratio test to preserve a model of a decompressed JPEG image. The proposed method then bounds the power of this test by minimizing the Kullback-Leibler divergence between the cover and stego distributions. We experimentally demonstrate in two popular datasets that it achieves state-of-the-art performance against deep learning detectors. Moreover, by considering a different pixel variance estimator for images compressed with Quality Factor 100, even greater improvements are obtained.
description: 13 pages, 7 figures, 1 table, submitted to IEEE Transactions on Information Forensics & Security
The Bandwidth Exchange Architecture
Creators: name: Turner, David Michael
name: Prevelakis, Vassilis
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2005
Subjects: Computer science

description: New applications for the Internet such as video on demand, grid computing etc. depend on the availability of high bandwidth connections with acceptable quality of service (QoS). There appears to be, therefore, a requirement for a market where bandwidth-related transactions can take place. For this market to be effective, it must be efficient for both the provider (seller) and the user (buyer) of the bandwidth. This implies that: (a) the buyer must have a wide choice of providers that operate in a competitive environment, (b) the seller must be assured that a QoS transaction will be paid by the customer, and (c) the QoS transaction establishment must have low overheads so that it may be used by individual customers without a significant burden to the provider. In order to satisfy these requirements, we propose a framework that allows customers to purchase bandwidth using an open market where providers advertise links and capacities and customers bid for these services. The model is close to that of a commodities market that offers both advance bookings (futures) and a spot market. We explore the mechanisms that can support such a model.
title: The role of Magnetic Resonance Imaging in the assessment of carotid space masses
Creators: name: Medvedev, Olga
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: MR
subject: Contrast agent-intravenous
subject: Neoplasia
subject: Education and training
subject: Head and Neck

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: 1.to discuss the anatomy of the carotid space (CS) 2.the role of MRI in the detection, characterization and diagnosis of the CS lesions 3.“tips and tricks” for the differential diagnosis of the CS...