cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Automatic Dynamic Parallelotope Bundles for Reachability of Nonlinear Dynamical Systems
Creators: name: Kim, Edward
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: Reachable set computation is an important technique for the verification of safety properties of dynamical systems. In this thesis, we investigate reachable set computation for discrete non-linear systems based on parallelotope bundles. The crux of the reachability algorithm relies on computing an upper and lower bound on the supremum and infimum respectively of a non-linear function over a rectangular domain. Bernstein Expansion of a polynomial function has been explored as a traditional method for computing these bounds efficiently. In light of this, we aim to improve the traditional parallelotope-based reachability method by removing the manual step of parallelotope template selection in order to make the procedure fully automatic. Furthermore, we show that adding templates dynamically during computations can improve accuracy. To this end, we investigate two techniques for generating template directions. The first technique approximates the dynamics as a linear transformation and generates templates using this transformation. The second technique uses Principal Component Analysis (PCA) of sample trajectories for generating templates. We have implemented our approach in a Python-based tool called Kaa, which uses two types of global optimization solvers, the first using Bernstein polynomials and the second usingthe Kodiak library. We demonstrate the improved accuracy of our approach on several standard nonlinear benchmark systems, including a high-dimensional COVID19 model. Finally, we explore a potential application of the Bernstein expansion technique to real-time reachability. We present evidence of several hurdles and barriers against effectively utilizing our Bernstein coefficient pruning method.
Large Music Recommendation Studies for Small Teams
Creators: name: Robinson, Kyle
name: Brown, Dan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Running live music recommendation studies without direct industry partnerships can be a prohibitively daunting task, especially for small teams. In order to help future researchers interested in such evaluations, we present a number of struggles we faced in the process of generating our own such evaluation system alongside potential solutions. These problems span the topics of users, data, computation, and application architecture.
Probing the Fermi Bubbles in Ultraviolet Absorption: A Spectroscopic Signature of the Milky Way's Biconical Nuclear Outflow
Creators: name: Fox, Andrew J.
name: Bordoloi, Rongmon
name: Savage, Blair D.
name: Lockman, Felix J.
name: Jenkins, Edward B.
name: Wakker, Bart P.
name: Bland-Hawthorn, Joss
name: Hernandez, Svea
name: Kim, Tae-Sun
name: Benjamin, Robert A.
name: Bowen, David V.
name: Tumlinson, Jason
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Giant lobes of plasma extend 55 degrees above and below the Galactic Center, glowing in emission from gamma rays (the Fermi Bubbles) to microwaves (the WMAP haze) and polarized radio waves. We use ultraviolet absorption-line spectra from the Hubble Space Telescope to constrain the velocity of the outflowing gas within these regions, targeting the quasar PDS 456 (Galactic coordinates l,b=10.4, +11.2 degrees). This sightline passes through a clear biconical structure seen in hard X-ray and gamma-ray emission near the base of the northern Fermi Bubble. We report two high-velocity metal absorption components, at v_LSR=-235 and +250 km/s, which cannot be explained by co-rotating gas in the Galactic disk or halo. Their velocities are suggestive of an origin on the front and back side of an expanding biconical outflow emanating from the Galactic Center. We develop simple kinematic biconical outflow models that can explain these observed profiles with an outflow velocity of ~900 km/s and a full opening angle of ~110 degrees (matching the X-ray bicone). This indicates Galactic Center activity over the last ~2.5-4.0 Myr, in line with age estimates of the Fermi Bubbles. The observations illustrate the use of UV absorption-line spectroscopy to probe the properties of swept-up gas venting into the Fermi Bubbles.
description: ApJ Letters, accepted, 6 pages, 3 figures, 1 table, updated from previous version with minor comments to match published version
Situational Leadership of Scholl Administrators According to the Perception of the Teachers in Demonstration Schools Affiliated with Autonomous University in Bangkok
Creators: name: Pattarawong Vatchanarat
Publisher: name: DR.KEN Institute of Academic Development and Promotion.
Year: 2023
Subjects: Situational Leadership
School Administrators
Demonstration School Affiliated with an Autonomous University

description: Interdisciplinary Academic and Research Journal, 3, 4, 97-110
L'inconscio in scena
Creators: name: Mariani, Annachiara
Publisher: name: No Publisher Supplied
Year: 2010

description: This dissertation will analyze the impact of the crucial historical and sociological implications that aligned with the theatrical productions of Italian playwrights who wrote between 1915 and 1935, through a psychoanalytic and post-structuralist approach. Their plays are filled with traumatized characters, some are suicidal and some simply evoke death. The aim of this dissertation is to investigate the various ways in which this sense of historical "dissonance" saturates many plays during this period, as present in the works of Luigi Antonelli, Luigi Pirandello and the "Grotesques". In addition, I will prove that Luigi Pirandello, who has always been considered the precursor and exemplary "maestro" for the so-called Grotesques playwrights, has actually draw inspiration from these writers. My research reevaluates the theatrical productions of Luigi Antonelli and the other "Grotesques" whose worth has been silenced by the dominating voice of Pirandello, the supposed master of them. This dissertation is divided in four chapters, with an introduction and a conclusion, and each chapter has a specific theoretical approach. In the first chapter, I will assert that the historical and cultural happenings that occur at the beginning of the twentieth century, such as Freud's psychoanalysis, De Saussure's Linguistics, Bergson's findings, Einstein's relativity, and World War I, deeply influenced the playwrights of this period by creating an aura of uncertainty and harsh "dissonance", which can be perceived in their works. The second chapter I will study linguistic aspects (e.g. the relationships between meanings and referents, signifiers and signified, etc.) of specific plays of this same group of authors. I will prove that fragmentation is present in the linguistic choices of these writers and that it has both a negative connotation and a positive one. In the third chapter I will investigate the effects of "modernism" on these plays, and prove that even if the modernization is attributable of the decentralization and crisis of the self, the human psyche is ultimately responsible for it. The final chapter is more gender-charged as it will deal with the fragmentation of female characters in certain plays. My research will prove that women are even more fragmented than men characters because the male authors view them from a fallocratic perspective, which tears them apart. In conclusion, outer fragmentation and dissonance penetrate the theatrical productions of Piarandello, Antonelli and the "Grotesques" invading all aspects of their plays.
Remaking Hazelwood, Remaking Pittsburgh
Creators: name: Gatti, Elise
name: Rico-Gutierrez, Luis
Publisher: name: Carnegie Mellon University
Year: 2009
Subjects: subject: 120199 Architecture not elsewhere classified
subject: FOS: Civil engineering

description: In 2006, the RCI convened and facilitated the interaction of a select group of technology visionaries to discuss the future of the Pittsburgh region. Hazelwood was their focus, a community located along the Monongahela River in Pittsburgh’s southeast end and home to one of Pittsburgh's largest remaining riverfront brownfield sites, the 178-acre ALMONO site. The result of a two-year investigation by the RCI into the history, conditions and future of Hazelwood, the book outlines a comprehensive and sustainable approach to the revitalization of Hazelwood through the redevelopment of the ALMONO site. The recommendations incorporated ideas produced by students enrolled in the 2007 - 2008 Urban Laboratory: Community and Urban Design Studio.
Enhancement of atmospheric H2SO4/H2O nucleation: Organic oxidation products versus amines
Creators: name: Berndt, T.
name: Sipilä, M.
name: Stratmann, F.
name: Petäjä, T.
name: Vanhanen, J.
name: Mikkilä, J.
name: Patokoski, J.
name: Taipale, R.
name: Mauldin III, R.L.
name: Kulmala, M.
Publisher: name: München : European Geopyhsical Union
Year: 2014
Subjects: subject: atmospheric chemistry
subject: concentration (composition)
subject: hydrogen
subject: hydroxyl radical
subject: nucleation
subject: oxidantoxidation
subject: sulfate
subject: 550

description: Atmospheric H2SO4 / H2O nucleation influencing effects have been studied in the flow tube IfT-LFT (Institute for Tropospheric Research – Laminar Flow Tube) at 293 ± 0.5 K and a pressure of 1 bar using synthetic air as the carrier gas. The presence of a possible background amine concentration in the order of 107–108 molecule cm−3 throughout the experiments has to be taken into account. In a first set of investigations, ozonolysis of olefins (tetramethylethylene, 1-methyl-cyclohexene, α-pinene and limonene) for close to atmospheric concentrations, served as the source of OH radicals and possibly other oxidants initiating H2SO4 formation starting from SO2. The oxidant generation is inevitably associated with the formation of organic oxidation products arising from the parent olefins. These products (first generation mainly) showed no clear effect on the number of nucleated particles within a wide range of experimental conditions for H2SO4 concentrations higher than ~107 molecule cm−3. Also the early growth process of the nucleated particles was not significantly influenced by the organic oxidation products in line with the expected growth by organic products using literature data. An additional, H2SO4-independent process of particle (nano-CN) formation was observed in the case of α-pinene and limonene ozonolysis for H2SO4 concentrations smaller than ~107 molecule cm−3. Furthermore, the findings confirm the appearance of an additional oxidant for SO2 beside OH radicals, very likely stabilized Criegee Intermediates (sCI). A second set of experiments has been performed in the presence of added amines in the concentrations range of a few 107–1010 molecule cm−3 applying photolytic OH radical generation for H2SO4 production without addition of other organics. All amines showed significant nucleation enhancement with increasing efficiency in the order pyridine < aniline < dimethylamine < trimethylamine. This result supports the idea of H2SO4 cluster stabilization by amines due to strong H2SO4↔amine interactions. On the other hand, this study indicates that for organic oxidation products (in presence of the possible amine background as stated) a distinct H2SO4 / H2O nucleation enhancement can be due to increased H2SO4 formation caused by additional organic oxidant production (sCI) rather than by stabilization of H2SO4 clusters due to H2SO4↔organics interactions.
Chains of subsemigroups
Creators: name: Cameron, Peter J.
name: Gadouleau, Maximilien
name: Mitchell, James D.
name: Peresse, Yann
Publisher: name: arXiv
Year: 2015
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20M10

description: We investigate the maximum length of a chain of subsemigroups in various classes of semigroups, such as the full transformation semigroups, the general linear semigroups, and the semigroups of order-preserving transformations of finite chains. In some cases, we give lower bounds for the total number of subsemigroups of these semigroups. We give general results for finite completely regular and finite inverse semigroups. Wherever possible, we state our results in the greatest generality; in particular, we include infinite semigroups where the result is true for these. The length of a subgroup chain in a group is bounded by the logarithm of the group order. This fails for semigroups, but it is perhaps surprising that there is a lower bound for the length of a subsemigroup chain in the full transformation semigroup which is a constant multiple of the semigroup order.
title: Median Nerve Entrapment Following Paediatric Elbow Dislocation - A Case Study
Creators: name: Amjadeen, Muhammed
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2023
Subjects: subject: Musculoskeletal joint
subject: Neuroradiology peripheral nerve
subject: Paediatric
subject: MR
subject: Surgery
subject: Oedema
subject: Trauma

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal information References
description: Learning objectives: To review the rare case of intra-articular median nerve entrapment following posterior elbow dislocation in a paediatric...
Calibration of LACIS as a CCN detector and its use in measuring activation and hygroscopic growth of atmospheric aerosol particles
Creators: name: Wex, H.
name: Kiselev, A.
name: Ziese, M.
name: Stratmann, F.
Publisher: name: München : European Geopyhsical Union
Year: 2006
Subjects: subject: aerosol
subject: ammonium sulfate
subject: calibration
subject: cloud condensation nucleus
subject: detection method
subject: relative humidity
subject: 550

description: A calibration for LACIS (Leipzig Aerosol Cloud Interaction Simulator) for its use as a CCN (cloud condensation nuclei) detector has been developed. For this purpose, sodium chloride and ammonium sulfate particles of known sizes were generated and their grown sizes were detected at the LACIS outlet. From these signals, the effective critical super-saturation was derived as a function of the LACIS wall temperature. With this, LACIS is calibrated for its use as a CCN detector. The applicability of LACIS for measurements of the droplet activation, and also of the hygroscopic growth of atmospheric aerosol particles was tested. The activation of the urban aerosol particles used in the measurements was found to occur at a critical super-saturation of 0.46% for particles with a dry diameter of 75 nm, and at 0.42% for 85 nm, respectively. Hygroscopic growth was measured for atmospheric aerosol particles with dry diameters of 150, 300 and 350 nm at relative humidities of 98 and 99%, and it was found that the larger dry particles contained a larger soluble volume fraction of about 0.85, compared to about 0.6 for the 150 nm particles.
title: Strategies to decrease barriers to breast screening in Maori, Aboriginal and Torres-Strait Islander women
Creators: name: Kok, Nathan
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2023
Subjects: subject: Breast
subject: Mammography
subject: Ultrasound
subject: Other
subject: Neoplasia
subject: Other

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal information References
description: Learning objectives: Identify barriers to breast screening in Indigenous women Explore methods of minimizing barriers and encouraging access in Indigenous...
Additional file 2 of Type 2 diabetic mellitus related osteoporosis: focusing on ferroptosis
Creators: name: Chen, Yili
name: Zhao, Wen
name: Hu, An
name: Lin, Shi
name: Chen, Ping
name: Yang, Bing
name: Fan, Zhirong
name: Qi, Ji
name: Zhang, Wenhui
name: Gao, Huanhuan
name: Yu, Xiubing
name: Chen, Haiyun
name: Chen, Luyuan
name: Wang, Haizhou
Publisher: name: figshare
Year: 2024
Subjects: Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Cancer
Science Policy

description: Supplementary Material 2
title: Efficacy of CT/MRI in diagnosing colorectal cancer; A Case Report of Incidental Mucinous Appendiceal Adenocarcinoma in an Indigenous woman
Creators: name: Kok, Nathan
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2023
Subjects: subject: Abdomen
subject: Colon
subject: Oncology
subject: CT
subject: CT-Colonography
subject: MR-Colonography
subject: Colonography CT
subject: Neoplasia

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal information References
description: Learning objectives: To establish the efficacy of CT and MRI in detecting colorectal cancer (CRC) and explore the role of imaging as a method of diagnostics. To discuss a case of incidental finding of mucinous appendiceal adenocarcinoma in a young Indigenous...
Superconductivity In K- And Na- Doped Bafe2as2: What Can We Learn From Heat Capacity And Pressure Dependence of Tc
Creators: name: Bud'ko, Sergey L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A brief overview of changes in the superconducting transition temperature under pressure and evolution of specific heat capacity jump at Tc for two related families of iron - based superconductors, Ba{1-x}KxFe2As2 (0.2 < x < 1.0) and Ba{1-x}NaxFe2As2 (0.2 < x < 0.9) will be given. For Ba{1-x}KxFe2As2 the specific heat capacity jump at Tc measured over the whole extent of the superconducting dome shows clear deviation from the empirical, Delta Cp (Tc) ~ Tc^3, scaling (known as the BNC scaling) for x > 0.7. At the same concentrations range apparent equivalence of effects of pressure and K- substitution on Tc fails. These observations suggests a significant change of the superconducting state for x > 0.7. In contrast, the data for the large portion of Ba{1-x}NaxFe2As2 (0.2 < x < 0.9) series follow the BNC scaling. However, the pressure dependence of Tc (measured up to ~ 12 kbar) have clear non-linearities for Na concentration in 0.2 - 0.25 region, that may be consistent with Tc crossing the phase boundaries of the emergent, narrow, antiferromagnetic/tetragonal phase. Results will be discussed in context other studies of these two and related families of iron-based superconductors.
description: mini-review for MPLB
التقوس الخارجي للساقين لدى لاعبي كرة القدم الشبان وطرق تأهيلها – مراجعة علمية Genu varum in young soccer players and ways to rehabilitate them - a systematic review
Creators: name: ﺼﯿد, طﺎرق
name: ﺤﺴﺎﯿﻨﻲ, أﯿوب
Publisher: name: Zenodo
Year: 2023
Subjects: Genu Varum ; Postural deviations ; Deformities of the knee joint ; Soccer.

description: This study aimed to analyze the causes of Genu Varum and its relationship to football practice. We explained the most important rehabilitation programs to correct it. This scientific review was based on the scientific resources available for free via Google Scholar, Science Direct, ASJP from 2006-2022.

Keywords have been relied on: genu varum, postural deviations, deformities knee joint in Arabic, French and English languages. (74) scientific articles were filtered by reading abstracts, ( 72 ) scientific articles were kept (sample). It was found that playing football has a role in the occurrence of genu varum among young practitioners, rehabilitative movement programs for was proposed for that problem
title: Communication and Collaboration Skills Training in Radiation Oncology: A Validation Survey
Creators: name: Knox, Matthew Charles
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2023
Subjects: subject: Professional issues
subject: Other
subject: Education
subject: Education and training

description: Purpose Methods and materials Results Conclusion Personal information References
description: Purpose: Background Communication with patients and the broad multi-disciplinary team forms a key component of the day-to-day work of radiation oncologists. Benefits exist for both patients and clinicians: (1,2) Patients = effective communication of...
MHD Effects on Pulsed YSO Jets. I. 2.5-D Simulations
Creators: name: Hansen, Edward C.
name: Frank, Adam
name: Hartigan, Patrick
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper we explore the dynamics of radiative axisymmetric MHD jets at high resolution using AMR methods. The goal of the study is to determine both the dynamics and emission properties of such jets. To that end we have implemented microphysics enabling us to produce synthetic maps of H$α$ and [S II]. The jets are pulsed either sinusoidally or randomly via a time-dependent ejection velocity which leads to a complicated structure of internal shocks and rarefactions as has been seen in previous simulations. The high resolution of our simulations allows us to explore in great detail the effect of pinch forces (due to the jet's toroidal magnetic field) within the "working surfaces" where pulses interact. We map the strong H$α$ emission marking shock fronts and the strong [S II] emission inside cooling regions behind shocks as observed with high-resolution images of jets. We find that pinch forces in the stronger field cases produce additional emission regions along the axis as compared with purely hydrodynamic runs. These simulations are a first step to understanding the full 3-D emission properties of radiative MHD jets.
A commutative diagram among discrete and continuous Neumann boundary optimal control problems
Creators: name: Tarzia, Domingo A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 49J20, 49K20, 49M25, 65K15, 65N30, 35J87, 35R35

description: We consider a bounded domain D whose regular boundary consists of the union of two portions F1 and F2. The convergence of a family of continuous Neumann boundary mixed elliptic optimal control problems (Pa), governed by elliptic variational equalities, when the parameter a of the family goes to infinity was studied in Gariboldi - Tarzia, Adv. Diff. Eq. Control Processes, 1 (2008), 113-132, being the control variable the heat flux on the boundary F2. It has been proved that the optimal control problem (Pa) are strongly convergent to another optimal control (P) governed also by an elliptic variational equality with a different boundary condition on the portion of the boundary F1. We consider the discrete approximations (Pha) and (Ph) of the optimal control problems (Pa) and (P) respectively, for each h>0, a>0, through the finite element method with Lagrange's triangles of type 1 with parameter h (the longest side of the triangles). We also discrete the elliptic variational equalities which define the system and their adjoint system states, and the corresponding cost functional of the Neumann boundary optimal control problems (Pa) and (P). The goal of this paper is to study the convergence of this family of discrete Neumann boundary mixed elliptic optimal control problems (Pha) when the parameter a goes to infinity. We prove the convergence of the discrete optimal controls, the discrete system and adjoint system states of the family (Pha) to the corresponding to the discrete Neumann boundary mixed elliptic optimal control problem (Ph) when a goes to infinity, for each h>0, in adequate functional spaces. We also study the convergence when h goes to zero and we obtain a commutative diagram which relates the continuous and discrete Neumann boundary mixed elliptic optimal control problems (Pha), (Pa), (Ph) and (P) by taking the limits h goes to zero and a goes to infinity respectively.
description: 23 pages
Additional file 3 of Type 2 diabetic mellitus related osteoporosis: focusing on ferroptosis
Creators: name: Chen, Yili
name: Zhao, Wen
name: Hu, An
name: Lin, Shi
name: Chen, Ping
name: Yang, Bing
name: Fan, Zhirong
name: Qi, Ji
name: Zhang, Wenhui
name: Gao, Huanhuan
name: Yu, Xiubing
name: Chen, Haiyun
name: Chen, Luyuan
name: Wang, Haizhou
Publisher: name: figshare
Year: 2024
Subjects: Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Cancer
Science Policy

description: Supplementary Material 3
Spin-orbital exchange of strongly interacting fermions on the $p$-band of a two-dimensional optical lattice
Creators: name: Zhou, Zhenyu
name: Zhao, Erhai
name: Liu, W. Vincent
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Mott insulators with both spin and orbital degeneracy are pertinent to a large number of transition metal oxides. The intertwined spin and orbital fluctuations can lead to rather exotic phases such as quantum spin-orbital liquids. Here we consider two-component (spin 1/2) fermionic atoms with strong repulsive interactions on the $p$-band of the optical square lattice. We derive the spin-orbital exchange for quarter filling of the $p$-band when the density fluctuations are suppressed, and show it frustrates the development of long range spin order. Exact diagonalization indicates a spin-disordered ground state with ferro-orbital order. The system dynamically decouples into individual Heisenberg spin chains, each realizing a Luttinger liquid accessible at higher temperatures compared to atoms confined to the $s$-band.
description: revised
THE TURKISH ‘NEW-WAVE’ MIGRANT COMMUNITY: AN INTELLEGENTSIA-IN-EXILE AND SUPERDIVERSITY AMID THE PROLIFERATION OF RECENT MIGRATION PATHWAYS
Creators: name: Fayeq, Salim Gabriel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: With its roots in the 1960s as guest workers, the Turkish in Germany represent the country’s largest and most established ethnic minority. Increasingly evolving into demographic multidimensionality on its own, the Turkish diaspora also continues today. Germany’s most recent wave of Turkish immigration, self-identifying as “New Wave,” represents an added layer to a complex mosaic of people in Germany. New Wave Turks carry a specific set of attributes, marking them unusual to the majority of German Turks as a class of people with esteemed educational backgrounds, many high-profile in their respective careers, who have fled Turkey under rising state oppression and targeting since the country’s 2016 failed coup d’état attempt. Having found a welcoming environment in Germany, the Turkish New Wave are carrying on their professions without political fears. Simultaneously, however, Germany’s New Wave enter a space where there are distinct sociocultural divisions. In this thesis I have recorded and evaluated my findings after conducting seven interviews with self-identifying members of the New Wave Turkish migrant group, all of whom reside in Berlin, Germany. My conversations comprise a compilation of anecdotal contributions to my research which, combined with thorough literature review, showcase a migration experience which affirms the superdiversity of an ethnic minority, one originally borne out of very marginal qualities, and now far too differentiated to be understood as a single and monolithic entity.
Breaking Out of the Ivory Tower: A Large-scale Analysis of Patent Citations to HCI Research
Creators: name: Cao, Hancheng
name: Lu, Yujie
name: Deng, Yuting
name: McFarland, Daniel A.
name: Bernstein, Michael S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: What is the impact of human-computer interaction research on industry? While it is impossible to track all research impact pathways, the growing literature on translational research impact measurement offers patent citations as one measure of how industry recognizes and draws on research in its inventions. In this paper, we perform a large-scale measurement study primarily of 70,000 patent citations to premier HCI research venues, tracing how HCI research are cited in United States patents over the last 30 years. We observe that 20.1% of papers from these venues, including 60--80% of papers at UIST and 13% of papers in a broader dataset of SIGCHI-sponsored venues overall, are cited by patents -- far greater than premier venues in science overall (9.7%) and NLP (11%). However, the time lag between a patent and its paper citations is long (10.5 years) and getting longer, suggesting that HCI research and practice may not be efficiently connected.
description: accepted to CHI 2023
Hygroscopic properties of Amazonian biomass burning and European background HULIS and investigation of their effects on surface tension with two models linking H-TDMA to CCNC data
Creators: name: Fors, E.O.
name: Rissler, J.
name: Massling, A.
name: Svenningsson, B.
name: Andreae, M.O.
name: Dusek, U.
name: Frank, G.P.
name: Hoffer, A.
name: Bilde, M.
name: Kiss, G.
name: Janitsek, S.
name: Henning, S.
name: Facchini, M.C.
name: Decesari, S.
name: Swietlicki, E.
Publisher: name: München : European Geopyhsical Union
Year: 2010
Subjects: subject: 550

description: HUmic-LIke Substances (HULIS) have been identified as major contributors to the organic carbon in atmospheric aerosol. The term "HULIS" is used to describe the organic material found in aerosol particles that resembles the humic organic material in rivers and sea water and in soils. In this study, two sets of filter samples from atmospheric aerosols were collected at different sites. One set of samples was collected at the K-puszta rural site in Hungary, about 80 km SE of Budapest, and a second was collected at a site in Rondônia, Amazonia, Brazil, during the Large-Scale Biosphere-Atmosphere Experiment in Amazonia – Smoke Aerosols, Clouds, Rainfall and Climate (LBA-SMOCC) biomass burning season experiment. HULIS were extracted from the samples and their hygroscopic properties were studied using a Hygroscopicity Tandem Differential Mobility Analyzer (H-TDMA) at relative humidity (RH) <100%, and a cloud condensation nucleus counter (CCNC) at RH >100%. The H-TDMA measurements were carried out at a dry diameter of 100 nm and for RH ranging from 30 to 98%. At 90% RH the HULIS samples showed diameter growth factors between 1.04 and 1.07, reaching values of 1.4 at 98% RH. The cloud nucleating properties of the two sets of aerosol samples were analysed using two types of thermal static cloud condensation nucleus counters. Two different parameterization models were applied to investigate the potential effect of HULIS surface activity, both yielding similar results. For the K-puszta winter HULIS sample, the surface tension at the point of activation was estimated to be lowered by between 34% (47.7 mN/m) and 31% (50.3 mN/m) for dry sizes between 50 and 120 nm in comparison to pure water. A moderate lowering was also observed for the entire water soluble aerosol sample, including both organic and inorganic compounds, where the surface tension was decreased by between 2% (71.2 mN/m) and 13% (63.3 mN/m).
Oxygen abundances in the narrow line regions of Seyfert galaxies and the metallicity-luminosity relation
Creators: name: Armah, Mark
name: Riffel, Rogério
name: Dors, O. L.
name: Oh, Kyuseok
name: Koss, Michael J.
name: Ricci, Claudio
name: Trakhtenbrot, Benny
name: Valerdi, Mabel
name: Riffel, Rogemar A.
name: Krabbe, Angela C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present oxygen abundances relative to hydrogen (O/H) in the narrow line regions (NLRs) gas phases of Seyferts 1 (Sy 1s) and Seyferts 2 (Sy 2s) Active Galactic Nuclei (AGNs). We used fluxes of the optical narrow emission line intensities [$3\,500<λ($Å$)<7\,000$] of 561 Seyfert nuclei in the local universe ($z\lesssim0.31$) from the second catalog and data release (DR2) of the BAT AGN Spectroscopic Survey, which focuses on the \textit{Swift}-BAT hard X-ray ($\gtrsim10$ keV) detected AGNs. We derived O/H from relative intensities of the emission lines via the strong-line methods. We find that the AGN O/H abundances are related to their hosts stellar masses and that they follow a downward redshift evolution. The derived O/H together with the hard X-ray luminosity ($L_{\rm X}$) were used to study the X-ray luminosity-metallicity ($L_{\rm X}$-$Z_{\rm NLR}$) relation for the first time in Seyfert galaxies. In contrast to the broad-line focused ($L_{\rm X}$-$Z_{\rm BLR}$) studies, we find that the $L_{\rm X}$-$Z_{\rm NLR}$ exhibit significant anti-correlations with the Eddington ratio ($λ_{\rm Edd}$) and these correlations vary with redshifts. This result indicates that the low-luminous AGNs are more actively undergoing Interstellar Medium (ISM) enrichment through star formation in comparison with the more luminous X-ray sources. Our results suggest that the AGN is somehow driving the galaxy chemical enrichment, as a result of the inflow of pristine gas that is diluting the metal rich gas, together with a recent cessation on the circumnuclear star-formation.
description: 17 pages, 12 figures, Accepted for publication in MNRAS, doi: 10.1093/mnras/stad217
title: A unique case of an Amyand hernia: imaging findings and common pitfalls
Creators: name: Awal, Wasim
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2023
Subjects: subject: Abdomen
subject: Colon
subject: Gastrointestinal tract
subject: CT
subject: Ultrasound
subject: Surgery
subject: Hernia

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal information References
description: Learning objectives: To recognise the imaging findings of an Amyand hernia and common...
title: Audit of routine chest X-rays on intubated patients at CCLHD ICUs
Creators: name: Parsons, Hilary
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2023
Subjects: subject: Cardiac
subject: Lung
subject: Plain radiographic studies
subject: Audit and standards
subject: Infection
subject: Inflammation
subject: Oedema

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal information References
description: Learning objectives: To determine how often chest radiographs are ordered on our invasively ventilated patients and how often we comment on these images in the ward round...
Pan-chromatic observations of the remarkable nova LMC 2012
Creators: name: Schwarz, Greg J.
name: Shore, Steven N.
name: Page, Kim L.
name: Osborne, Julian P.
name: Beardmore, Andrew P.
name: Walter, Frederick M.
name: Bode, Michael F.
name: Drake, Jeremy J.
name: Ness, Jan-Uwe
name: Starrfield, Sumner
name: Van Rossum, Daniel R.
name: Woodward, Charles E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of an intensive multiwavelength campaign on nova LMC 2012. This nova evolved very rapidly in all observed wavelengths. The time to fall two magnitudes in the V band was only 2 days. In X-rays the super soft phase began 13$\pm$5 days after discovery and ended around day 50 after discovery. During the super soft phase, the \Swift/XRT and \Chandra\ spectra were consistent with the underlying white dwarf being very hot, $\sim$ 1 MK, and luminous, $\sim$ 10$^{38}$ erg s$^{-1}$. The UV, optical, and near-IR photometry showed a periodic variation after the initial and rapid fading had ended. Timing analysis revealed a consistent 19.24$\pm$0.03 hr period in all UV, optical, and near-IR bands with amplitudes of $\sim$ 0.3 magnitudes which we associate with the orbital period of the central binary. No periods were detected in the corresponding X-ray data sets. A moderately high inclination system, $i$ = 60$\pm$10$^{\arcdeg}$, was inferred from the early optical emission lines. The {\it HST}/STIS UV spectra were highly unusual with only the \ion{N}{5} (1240Å) line present and superposed on a blue continuum. The lack of emission lines and the observed UV and optical continua from four epochs can be fit with a low mass ejection event, $\sim$ 10$^{-6}$ M$_{\odot}$, from a hot and massive white dwarf near the Chandrasekhar limit. The white dwarf, in turn, significantly illuminated its subgiant companion which provided the bulk of the observed UV/optical continuum emission at the later dates. The inferred extreme white dwarf characteristics and low mass ejection event favor nova LMC 2012 being a recurrent nova of the U Sco subclass.
description: 18 figures, 6 tables (one online only containing all the photometry)
The Chemistry of Some Organosulphur Titanium (IV) Compounds
Creators: name: Jones, John
Publisher: name: London South Bank University
Year: 1978

description: Chapter I of this thesis is a review of the chemistry of titanium (IV) with thiols and dithiols. Chapter II consists of a review of the preparation and reactions of tetrabenzyl titanium. Chapter III comprises a discussion of the complexes of titanium (IV) with a variety of thiols and dithiols which have been prepared and characterised during the course of this investigation. Some reactions of tetrabenzyl-titanium with thiols and dithiols are also discussed. The reaction of dithiol with titanium tetraisopropoxide led to the formation of the disubstituted product in the case of the 1,2-dithiols but no products were isolated from the reactions with 1,3- and 1,4- dithiols. Bis(toluene-3,4-dithiolato)titanium (IV) was the only fully substituted compound obtained using titanium tetraisopropoxide as the starting material. A series of Lewis base adducts of the dithiolato complexes were prepared. For the complexes with bidentate Lewis bases two methods of preparation were used. One method involved direct reaction of the Lewis base with the dithiolato complex; the other method consisted of mixing solutions of titanium tetraisopropoxide, the dithiol and the Lewis base in the appropriate proportions. Proton n.m.r., far infrared and molecular weight data are reported for the dithiolato complexes and their Lewis base adducts. The adducts were found to be monomeric in solution and it is postulated that the compounds with bidentate Lewis bases adopt the cis-structure. An attempt to form the triethylamine adduct of bis(isopropoxy) toluene-3 ,4-dithiolatotitanium (IV) led to the formation of a tris (dithiolato) complex containing the triethylammonium cation. The reaction was repeated using diethylamine and the corresponding triscomplex containing the diethylammonium cation was obtained. Far infrared and u.v.-visible spectral data are reported for these complexes. The reaction of tetrabenzyltitanium with aliphatic dithiols gave the fully substituted bis(dithiolato) complexes. The reaction of tetrabenzyltitanium with monothiols gave products which could not be identified. The interaction of titanium tetraisopropoxide with o-aminobenzenthiol led to the formation of the disubstituted product. It is concluded from the spectroscopic data that the complex is a six-coordinate species with two coordinating -NH2 groups.
title: Existing and evolving paradigms in posterior circulation stroke imaging: A review
Creators: name: Sison, Julian
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2023
Subjects: subject: CNS
subject: CT-Angiography
subject: MR
subject: Education
subject: Ischaemia / Infarction

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal information References
description: Learning objectives: To discuss the clinical impact of stroke. To address imaging exam choices for posterior circulation stroke and their performance metrics. To discuss evolving paradigms in the detection and management of posterior circulation stroke. To apply this...
Demonstration of a Degenerate Band Edge in Periodically-Loaded Circular Waveguides
Creators: name: Othman, Mohamed
name: Capolino, Filippo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate the existence of a special degeneracy condition, called degenerate band edge (DBE), between two Bloch modes in periodically loaded circular all-metallic waveguides at microwave frequencies. The DBE condition has been associated with a dramatic reduction in group velocity and with some unique resonance properties, but it has not been shown in hollow waveguide structures yet. Hence, we show here its existence in two periodic waveguide examples. The unit cell of the first case is composed of a circular waveguide loaded with two inner cylinders with elliptical irises with misaligned angles. The second structure is composed of loading the waveguide with elliptical rings. The demonstration of DBE in those waveguide is explained through a simple multi transmission line approach where the conditions to obtain DBE are clarified, and suggests that the DBE can occur in several other analogous periodic waveguide. These structures can be potentially used to investigate unconventional gain schemes in traveling wave tubes or other kinds of distributed amplifiers and novel pulse compressors.
description: 3 pages, 5 figures
Adolescent Experiences of Empathy, Internalizing Symptoms, and Stress: Before and During the COVID-19 Pandemic
Creators: name: Richards, Adrianna
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: In addition to links with prosocial outcomes, empathy may convey risk for adolescent internalizing symptoms, which may differ for affective and cognitive empathy. The empathy-internalizing symptom link may also be influenced by the stressful context and empathic decision making of the COVID-19 pandemic. No known studies have assessed the interaction between affective and cognitive empathy and their relation to internalizing symptoms, or allostatic load as a potential mechanism underlying this association. Data from before and during the COVID-19 pandemic were analyzed to assess links between adolescents’ affective and cognitive empathy, internalizing symptoms, and pandemic-related stress. No concurrent or prospective links between internalizing symptoms and the two forms of empathy, or their interaction, emerged. Pandemic-related stress was not a significant moderator. Sampling bias and low-to-moderate internal reliability of adolescent self-reported affective and cognitive empathy may have contributed to null effects. Implications and future directions are discussed.
Wave correlations and quantum noise in cosmology
Creators: name: Leonhardt, Ulf
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Wave noise is correlated. While it may look random in space, correlations appear in space-time, because the noise is carried by wave propagation. These correlations of wave noise give rise to fluctuation forces such as the Casimir force, they are responsible for the particle creation in the dynamical Casimir effect and in the expanding universe. This paper considers the noise correlations for light waves in non-exponentially expanding flat space. The paper determines the high-frequency asymptotics of the correlation spectrum in the conformal vacuum. These noise correlations give rise to a nontrivial vacuum energy that may appear as the cosmological constant.
Field measurements of hygroscopic properties and state of mixing of nucleation mode particles
Creators: name: Väkevä, M.
name: Kulmala, M.
name: Stratmann, F.
name: Hämeri, K.
Publisher: name: München : European Geopyhsical Union
Year: 2002
Subjects: subject: 550

description: An Ultrafine Tandem Differential Mobility Analyser (UF-TDMA) has been used in several field campaigns over the last few years. The investigations were focused on the origin and properties of nucleation event aerosols, which are observed frequently in various environments. This paper gives a summary of the results of 10 nm and 20 nm particle hygroscopic properties from different measurement sites: an urban site, an urban background site and a forest site in Finland and a coastal site in western Ireland. The data can be classified in four hygroscopic growth classes: hydrofobic, less-hygroscopic, more-hygroscopic and sea-salt. Similar classification has been earlier presented for Aitken and accumulation mode particles. In urban air, the summertime 10 nm particles showed varying less-hygroscopic growth behaviour, while winter time 10 nm and 20 nm particles were externally mixed with two different hygroscopic growth modes. The forest measurements revealed diurnal behaviour of hygroscopic growth, with high growth factors at day time and lower during night. The urban background particles had growth behaviour similar to the urban and forest measurement sites depending on the origin of the observed particles. The coastal measurements were strongly affected by air mass history. Both 10 nm and 20 nm particles were hygroscopic in marine background air. The 10 nm particles produced during clean nucleation burst periods were hydrofobic. Diurnal variation and higher growth factors of 10 nm particles were observed in air affected by other source regions. External mixing was occasionally observed at all the sites, but incidents with more than two growth modes were extremely rare.
title: When air is a red herring: Benign appearances of air in unusual locations
Creators: name: Sison, Julian
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2023
Subjects: subject: Emergency
subject: CT
subject: Digital radiography
subject: Education
subject: Acute
subject: Trauma

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal information References
description: Learning objectives: The goal of this exhibit is to prepare practicing radiologists and trainees to recognize benign circumstances where air can be found in atypical locations. Additionally, we will provide tips to distinguish these benign conditions from true...
Supernova connection of unidentified ultra high energy gamma-ray source LHAASO J2108+5157
Creators: name: De Sarkar, Agnibha
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a simple phenomenological model of hadronic interaction between protons accelerated in an old supernova remnant (SNR) and cold protons situated within the associated molecular clouds (MCs). The accelerated protons from the old SNR escaped the SNR shock front, and got injected into the MCs at an earlier time, producing ultra high energy gamma-rays and neutrinos through inelastic proton-proton interaction. We also take into account the acceleration and subsequent escape of electrons from the SNR shock front. The escaped electrons produce gamma-rays through various radiative cooling mechanisms, after getting injected into the MCs. We use the model discussed in this letter to explain the multiwavelength (MWL) spectral energy distribution (SED) of unidentified Galactic ultra high energy gamma-ray source LHAASO J2108+5157. We also discuss the feasibility of applying this model in other cases as well. Future observations can test the viability of the model discussed in this letter, which will in turn confirm that the SNRs can, in fact, accelerate particles up to PeV energies.
description: 6 pages, 2 figures, 1 table; accepted for publication in Monthly Notices of the Royal Astronomical Society Letters (MNRASL)