cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Minimal Seesaw as an Ultraviolet Insensitive Cure for the Problems of Anomaly Mediation
Creators: name: Mohapatra, R. N.
name: Setzer, N.
name: Spinner, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that an intermediate scale supersymmetric left-right seesaw scenario with automatic R-parity conservation can cure the problem of tachyonic slepton masses that arises when supersymmetry is broken by anomaly mediation, while preserving ultraviolet insensitivity. The reason for this is the existence of light B - L = 2 higgses with yukawa couplings to the charged leptons. We find these theories to have distinct predictions compared to the usual mSUGRA and gauge mediated models as well as the minimal AMSB models. Such predictions include a condensed gaugino mass spectrum and possibly a correspondingly condensed sfermion spectrum.
description: 19 pages, 1 figure
title: An Update of Seismic Monitoring and Research in the Vicinity of the Paducah Gaseous Diffusion Plant
title: January 2018–December 2019
titleType: Subtitle
Creators: name: Wang, Zhenming
name: Carpenter, N. Seth
name: Woolery, Edward W.
Publisher: name: Kentucky Geological Survey, University of Kentucky
Year: 2020
Subjects: subject: FOS: Natural sciences

description: From January 2018 to December 2019, the Kentucky Geological Survey monitored earthquakes and conducted research on seismic hazards in the vicinity of the Paducah Gaseous Diffusion Plant, a former uranium enrichment facility, in McCracken County, western Kentucky. Six hundred forty-four earthquakes with magnitude between 0.5 and 3.7 were recorded in the area during this period. Research focused on the influence of the thick sediments on earthquake ground motion, the so-called site response, through theoretical and data analysis of borehole seismic records. Our research has shown that the National Earthquake Hazards Reduction Program site classification, which is based on Vs30, and correction factors currently being used in earthquake engineering design and other safety evaluations are not appropriate to account for site response in the area.
description: © 2020 University of Kentucky
Series XIII, Report of Investigations 12
Application of HL7 FHIR in a Microservice Architecture for Patient Navigation on Registration and Appointments
Creators: name: Bettoni, Giovani Nícolas
name: Camargo, Thafarel
name: Santos, Bruno Gomes Tavares dos
name: Flores, Cecília Dias
name: Da Silva, Filipe Santana
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Electronic Health Record Systems (EHR-S) are commonly developed in monolithic architectures. This architectural style presents greater complexity and demands more effort when we think of interoperability. A solution proposal is the creation of Microservices that use HL7 FHIR as an interoperability strategy. In this sense, it is presented the development of a prototype, based on a microservices architecture, to act in a real scenario of Patient Navigation (PN). The problem was subdivided into 3 steps: definition of architecture, development and construction of an interface to simulate the role of the navigator. The Patient and Appointment microservices are capable of synchronous communication to query and record information. In general, the implemented architectural style not only isolates information domains but can receive data from multiple sources while maintaining essential functionality. This type of approach plays a crucial role in a hospital environment, specifically in PN, highlighting the importance of the standard and expanding the possibilities for further research to be conducted.
description: 8 pages, 14 figures, 3rd ICSE Workshop on Software Engineering for Healthcare, Collocated to ICSE'21
Vortex in axion condensate as a dark matter halo
Creators: name: Mielczarek, Jakub
name: Stachowiak, Tomasz
name: Szydlowski, Marek
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the possibility of the vortices formation in axion condensate on the galactic scale. Such vortices can occur as a result of global rotation of the early universe. We study analytical models of vortices and calculate exemplary galaxy rotation curves. Depending on the setup it is possible to obtain a variety of shapes which give a good qualitative agreement with observational results. However, as we show, the extremely low velocity dispersions of the axions velocity are required to form the single vortex on the galactic scales. We find that the required velocity dispersion is of the order of $σ\approx 10^{-12} \frac{m}{s}$. This is much smaller that predicted within the present understanding of the axion physics. The vortices in axion condensate can be however formed on the much smaller scales and give seeds to the galaxy formation and to their angular momenta. On the other hand, the vortices can be formed on the galactic scales, but only if the mass of the axion-like particles is of the order of $10^{-30}$eV. In this case, the particle de Broglie wavelength is comparable with the galactic diameter. This condition must be fulfilled in order to keep the coherence of the quantum condensate on the galactic scales.
description: RevTeX4, 9 pages, 3 figures; v.2 small correction, v.3 corrections and improvements; comparison of the theoretically predicted curves with the exemplary galactic rotation curves
Towards Fault Tolerant Adiabatic Quantum Computation
Creators: name: Lidar, Daniel A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: I show how to protect adiabatic quantum computation (AQC) against decoherence and certain control errors, using a hybrid methodology involving dynamical decoupling, subsystem and stabilizer codes, and energy gaps. Corresponding error bounds are derived. As an example I show how to perform decoherence-protected AQC against local noise using at most two-body interactions.
description: Replaced with published version
Epigenetic Regulation of Hepatitis B Virus in vivo
Creators: name: Collopy, Rachel Lynn
Publisher: name: University of Illinois at Chicago
Year: 2024

description: Chronic hepatitis B virus (HBV) infection is a global public health concern responsible for approximately 1 million deaths annually and rising. Current mainstays of HBV treatment, nucleoside analogs and interferon, are associated with drug resistance and negative side effects. Most importantly, these treatments are not curative and only slow the progression of chronic HBV, which frequently leads to significant liver fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). Chronic HBV infection is maintained by viral covalently closed circular (ccc) DNA, a highly stable replication product and transcriptional template which exists as an episome in the nucleus. As such, the epigenetic silencing of nuclear HBV DNA represents one potential mechanism that may address curing chronic HBV infection. As the limited coding capacity of the virus leaves few viral drug targets, targeting host cellular factors that contribute to successful HBV replication is imperative.
In the HBV transgenic mouse model of chronic infection, the forkhead box protein A/hepatocyte nuclear factor 3 (Foxa/HNF3) family of pioneer transcription factors and Ten-eleven translocation (Tet) methylcytosine dioxygenases are required to support postnatal viral demethylation and subsequent HBV transcription and replication. Liver-specific Foxa-deficient mice with hepatic expression of only Foxa3 do not support HBV replication but display biliary epithelial hyperplasia with bridging fibrosis. However, liver-specific Foxa-deficient mice with hepatic expression of only Foxa1 or Foxa2 also successfully restrict viral transcription and replication but display only minimal alterations in liver physiology. These observations suggest that the level of Foxa activity, rather than the combination of specific Foxa genes, is a key determinant of HBV biosynthesis. Liver-specific Tet2 and 3-deficient HBV transgenic mice exhibit a similar phenotype: The levels of viral transcription and replication intermediates are dramatically reduced. Hepatitis B core antigen is only observed in a very limited number of pericentral hepatocytes in a pattern that is similar to glutamate-ammonia ligase (Glul), a β-catenin target gene. HBV transcript abundance in adult Tet-deficient mice resembles that observed in wild-type neonatal mice. Additionally, HBV transgene DNA displays increased 5-methylcytosine (5mC) frequency at CpG sequences consistent with neonatal Tet deficiency being responsible for decreased developmental viral DNA demethylation mediated by 5mC oxidation to 5-hydroxymethylcytosine.
Together, these data support a model wherein Foxa factors bind to HBV DNA and recruit Tet enzymes to mediate the demethylation of the viral genome and support subsequent viral biosynthesis. Consequently, Foxa and/or Tet inhibitors may potentially be developed into therapeutic agents capable of inducing and/or maintaining HBV covalently closed circular DNA methylation, resulting in transcriptional silencing and the resolution of chronic viral infection.
pi N to Multi-pi N Scattering in the 1/N_c Expansion
Creators: name: Kwee, Herry J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We extend the 1/N_c meson-baryon scattering formalism to pi N to multi-pi N case. We first show that the leading-order large N_c processes proceed through resonant intermediate states (e.g., rho N or pi Delta). We find that the pole structure of baryon resonances can be uniquely identified by their (non)appearance in eta N or mixed partial-wave pi Delta final states.
description: Invited talk at Exclusive Reactions at High Momentum Transfer workshop, JLAB, Newport News, VA, May 21-24, 2007, 4 pages, 3 figures
Quantum memories and the double-slit experiment: implications for astronomical interferometry
Creators: name: Bland-Hawthorn, Joss
name: Sellars, Matt
name: Bartholomew, John
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Thomas Young's slit experiment lies at the heart of classical interference and quantum mechanics. Over the last fifty years, it has been shown that particles (e.g. photons, electrons, large molecules), even individual particles, generate an interference pattern at a distant screen after passage through a double slit, thereby demonstrating wave-particle duality. We revisit this famous experiment by replacing both slits with single-mode fibre inputs to two independent quantum memories that are capable of storing the incident electromagnetic field's amplitude and phase as a function of time. At a later time, the action is reversed: the quantum memories are read out in synchrony and the single-mode fibre outputs are allowed to interact consistent with the original observation. In contrast to any classical memory device, the write and read processes of a quantum memory are non-destructive and hence, preserve the photonic quantum states. In principle, with sufficiently long storage times and sufficiently high photonic storage capacity, quantum memories operating at widely separated telescopes can be brought together to achieve optical interferometry over arbitrarily long baselines.
description: 14 pages, 5 figures. Paper written for special double issue of Astrophotonics in JOSA-B and Applied Optics
Pleasure, Pain, and Profits How Women Vendors Live and Thrive in Mumbai’s Locals
Creators: name: Aggarwal, Aditi
Publisher: name: University of Illinois at Chicago
Year: 2024

description: In this dissertation, I study the sensual and material worlds built by women vendors, like Savita maushi, who have been variably successful in becoming financially and socially independent and sometimes economically mobile through their trades. I call the network of interactions constituted by women vendors, daily commuters, suppliers of goods, railway station shops, and local trains the train market. I argue that the train market is a critical site within the urban public economy where vendor women create fun, build social relations, and strategically deploy charm and anger. My primary intervention is that creating fun and pleasure in public economies within a dangerous and shifting urban metropolis is strategic, necessary, and politically significant. Fun is imagined to be a rare entity to come by for residents of cities in South Asia, where construction of massive infrastructures and climate disasters are constantly disrupting and delaying everyday routines (Benjamin 2008; Dalsgaard 2010; Davis 2006). Especially for women, being in public is always seen as being fraught with dangers that are usually the basis of moral strictures used to curtail their movement. My ethnography explores the ways that meaning is produced and values emerge for women as they interact in public spaces, both as individual entrepreneurs and as collectives. Drawing on ideas from economic anthropology (Gibson-Graham 1997; Zelizer 2010), feminist studies of work (Weeks 2011), and studies of public transport (Bear 2007; Khullar 2008; Prasad 2012, 2015), I develop the argument that an important value for women in public is the ability to wield their joy and anger safely as they adapt public spaces to their needs and desires. Sustaining these values is hard work, and therefore, my intervention also contends that women vendors work individually and in community with other women to preserve these spaces and keep fun alive.
Twofold symmetry of $c$-axis resistivity in topological kagome superconductor CsV$_3$Sb$_5$ with in-plane rotating magnetic field
Creators: name: Xiang, Ying
name: Li, Qing
name: Li, Yongkai
name: Xie, Wei
name: Yang, Huan
name: Wang, Zhiwei
name: Yao, Yugui
name: Wen, Hai-Hu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In transition metal compounds, due to the interplay of charge, spin, lattice and orbital degrees of freedom, many intertwined orders exist with close energies. One of the commonly observed states is the so-called nematic electron state, which breaks the in-plane rotational symmetry. This nematic state appears in cuprates, iron-based superconductor, etc. Nematicity may coexist, affect, cooperate or compete with other orders. Here we show the anisotropic in-plane electronic state and superconductivity in a recently discovered kagome metal CsV$_3$Sb$_5$ by measuring $c$-axis resistivity with the in-plane rotation of magnetic field. We observe a twofold symmetry of superconductivity in the superconducting state and a unique in-plane nematic electronic state in normal state when rotating the in-plane magnetic field. Interestingly these two orders are orthogonal to each other in terms of the field direction of the minimum resistivity. Our results shed new light in understanding non-trivial physical properties of CsV$_3$Sb$_5$.
description: 19 pages, 5 figures
Light-Cone Distribution Amplitudes of Axial-vector Mesons
Creators: name: Yang, Kwei-Chou
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have presented a detailed study of twist-2 and twist-3 light-cone distribution amplitudes of $1^3P_1$ and $1^1P_1$ axial-vector mesons, based on QCD conformal partial wave expansion. Applying equations of motion, the twist-three two-parton light-cone distribution amplitudes can be expressed in terms of leading-twist and twist-three three-parton light-cone distribution amplitudes. The relevant G-parity invariant and violating parameters, containing the corrections due to the SU(3) breaking effects, are evaluated from the QCD sum rule method. The results for axial-vector decay constants of $1^3P_1$ states are presented. The values of tensor decay constants and Gegenbauer moments of the leading twist distribution amplitudes for $1^1P_1$ states are updated. Using Gell-Mann-Okubo mass formula, the mixing angle for the $f_8$ and $f_1$ of $1^3P_1$ states is $θ_{^3P_1}\sim 38^\circ$, and that for $h_8$ and $h_1$ of $1^1P_1$ states is $θ_{^1P_1}\sim 10^\circ$. The detailed properties for physical states $f_1(1285), f_1(1420), h_1(1170)$, and $h_1(1380)$ are given. Assuming the mixing angle between $K_{1A}$ and $K_{1B}$ to be $θ_K=45^\circ$ or $-45^\circ$, we also give the detailed study for $K_1(1270)$ and $K_1(1400)$. Using the conformal partial wave expansion, we obtain the models for light-cone distribution amplitudes, containing contributions up to conformal spin 9/2. It is interesting to note that some distribution amplitudes have significant asymmetric behaviors, which should be phenomenologically attractive.
description: 77 pages. Typos corrected
An Extensive Collection of Stellar Wind X-ray Source Region Emission Line Parameters,Temperatures, Velocities, and Their Radial Distributions as Obtained from Chandra Observations of 17 OB Stars
Creators: name: Waldron, Wayne L.
name: Cassinelli, Joseph P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Chandra high energy resolution observations have now been obtained from numerous non-peculiar O and early B stars. The observed X-ray emission line properties differ from pre-launch predictions, and the interpretations are still problematic. We present a straightforward analysis of a broad collection of OB stellar line profile data to search for morphological trends. X-ray line emission parameters and the spatial distributions of derived quantities are examined with respect to luminosity class. The X-ray source locations and their corresponding temperatures are extracted by using the He-like f/i line ratios and the H-like to He-like line ratios respectively. Our luminosity class study reveals line widths increasing with luminosity. Although the majority of the OB emission lines are found to be symmetric, with little central line displacement, there is evidence for small, but finite, blue-ward line-shifts that also increase with luminosity. The spatial X-ray temperature distributions indicate that the highest temperatures occur near the star and steadily decrease outward. This trend is most pronounced in the OB supergiants. For the lower density wind stars, both high and low X-ray source temperatures exist near the star. However, we find no evidence of any high temperature X-ray emission in the outer wind regions for any OB star. Since the temperature distributions are counter to basic shock model predictions, we call this the "near-star high-ion problem" for OB stars. By invoking the traditional OB stellar mass loss rates, we find a good correlation between the fir-inferred radii and their associated X-ray continuum optical depth unity radii. We conclude by presenting some possible explanations to the X-ray source problems that have been revealed by this study.
description: Published in 2007, ApJ, 668, 456. An Erratum scheduled for publication in 2008, ApJ, 680, is included as an Appendix. The Erratum corrects some tabulated data in 5 tables and 2 figures
A Descriptive Study of Sexual Assault Cases Involving Transgender Survivors Who Sought Post-Assault Care
Creators: name: Benitez Cruz, Carlos Alberto
Publisher: name: University of Illinois at Chicago
Year: 2024

description: Transgender individuals experience gender-based violence at alarmingly high rates, with research indicating that nearly one in two trans* folks report having been sexually assaulted in their lifetime. Though trans* people are disproportionately targeted by sexual assault, there is very little literature on the dynamics of sexual assault targeting them. The current study seeks to center trans* survivors of sexual assault who sought post-assault medical care using state-wide administrative data. Descriptive analyses are provided of 197 cases involving a transgender survivor of sexual assault who sought post-assault care in Massachusetts between January 1, 2012, and December 31, 2021. Results reveal novel information regarding survivor characteristics (gender, race, and age), assault dynamics (number of perpetrators, survivor-perpetrator relationship, perpetrator gender, retraining order before assault, condom use, ejaculation, bleeding injuries to survivor and perpetrator, and penetrative acts described by survivor), and post-assault action (days between assault and exam, SANE exam, evidence collection kit used, toxicology kit used, police report filed, and restraining order after assault). Findings indicate an overrepresentation of trans* survivors who were racialized as Black, and Hispanic, and gendered as women sought care. Future research and practice implications are discussed.
Regionalism, majority government and the electoral system in Canada : the case for two-seat constituencies
Creators: name: Sutherland, Neil John
Publisher: name: University of British Columbia
Year: 2010

description: A continual problem in Canadian politics is regional conflict. There are several reasons why the major issues in Canadian politics are regionally-defined. Some of the socio-economic variables include ethnicity and economic bases, which are reinforced by geography. Some of the political variables include the division of powers between the central and provincial governments, and the regional concentration of party representation in the central government legislature. At the level of the electorate, Canada's national political parties actually receive multi-regional support. Thus, introducing an electoral system that translates votes into seats more proportionately than the present system should increase the multiregional representation of Canada's political parties at the level of seats in the legislature. However, introducing a more proportional electoral system would probably decrease the likelihood of a party forming a majority government. Consequently, if Canada's legislators felt that executive stability through majority government was a more important normative criterion (along with whatever vested interests they might have) than a government with multiregional representation, then proposals for a more proportional electoral system will remain an academic exercise. The objective of this study was to find an alternative electoral system which satisfies both the criteria of majority government and multiregional representation. Based on the premise that the most significant independent variables affecting majority government and multiregional representation are district magnitude and geographical distribution of partisan support, it was hypothesized that Increasing the district magnitude from one to two, or from one to three, would maintain the bias in favour of and increase the multiregional representation of a large, diffuse party. The results of the study show that a district magnitude of two would provide a large diffuse party with a majority of seats for the same voter support as the present system does. In addition, DM2 rewards this large diffuse party with the seats necessary to form a minority government at a much lower voter support level than does the existing system. Thus, DM2 solves the problem of underrepresentation of regions in the government party, and is at the same time even more advantageous to a large diffuse party than is the present electoral system.
Annäherungen an die Bibliographie und die Quellen zur Arbeiterbewegung unter der Franco-Diktatur, 1939 - 1966
Creators: name: Vega García, Rubén
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Annäherungen an die Bibliographie und die Quellen zur Arbeiterbewegung unter der Franco-Diktatur, 1939 - 1966" of MTS 17 (1996).
description: Moving the Social, Vol 17 (1996): Forschungen zur Arbeiterschaft und Arbeiterbewegung in Spanien
The effects of anxiety on arousal in sexually dysfunctional women
Creators: name: Palace, Eileen Marie
Publisher: name: University of British Columbia
Year: 2010

description: The effects of anxiety arousal on subsequent sexual arousal were investigated to determine if sexually functional and dysfunctional women respond differentially to pairings of anxiety-evoking and erotic cues. Eight sexually dysfunctional and eight sexually functional women viewed a neutral control (travelogue videotape) or anxiety-evoking (threatened amputation videotape) preexposure stimulus followed by a sexually arousing (erotic videotape) experimental stimulus. A repeated measures design was used in which each subject observed both pairs of preexposure and experimental stimuli. Changes in sexual arousal were measured physiologically with a vaginal photoplethysmograph, and subjectively with a self-report rating scale. As predicted, functional women showed significantly greater physiological sexual arousal than dysfunctional women in both the neutral-erotic and anxiety-erotic conditions. Consistent with previous research, anxiety preexposure significantly enhanced genital arousal relative to the neutral-control stimulus for functional women. Moreover, dysfunctional women also achieved a significantly enhanced rate and magnitude of genital arousal following exposure to the anxiety stimulus. Contrary to the strength of their physiological responses however, both groups rated the anxiety-erotic condition as significantly less sexually arousing. Non-significant correlations between vaginal blood volume and subjective ratings revealed a trend for functional and dysfunctional women to experience enhanced genital arousal accompanied by an inhibited likelihood of acknowledging feeling aroused. These findings contradict the literature on sexually functional and dysfunctional men, and challenge current conceptualizations of sexual dysfunction. The findings suggest that (1) anxiety arousal enhances genital arousal in functional and dysfunctional women, (2) heightened arousal occurs despite contradictory cognitive perceptions, (3) the female sexual response system is desynchronous, (4) functional women do not necessarily process genital cues more effectively than dysfunctional women, (5) the physiological response system is imperative to defining a response as sexual and must be targeted in therapy, and (6) common modes of treatment directed toward increasing parasympathetic response may be counterproductive to the elicitation of sexual arousal. Alternative treatment strategies directed toward response synchrony, sympathetic activation, and cognitive attribution are discussed. A preliminary model of sexual dysfunction in women is proposed, .and discussed in terms of directions for future research.
Cryptanalysis of group-based key agreement protocols using subgroup distance functions
Creators: name: Ruinskiy, Dima
name: Shamir, Adi
name: Tsaban, Boaz
Publisher: name: arXiv
Year: 2007
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: We introduce a new approach for cryptanalysis of key agreement protocols based on noncommutative groups. This approach uses functions that estimate the distance of a group element to a given subgroup. We test it against the Shpilrain-Ushakov protocol, which is based on Thompson's group F.
How Do Quasicrystals Grow?
Creators: name: Keys, Aaron S.
name: Glotzer, Sharon C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Using molecular simulations, we show that the aperiodic growth of quasicrystals is controlled by the ability of the growing quasicrystal `nucleus' to incorporate kinetically trapped atoms into the solid phase with minimal rearrangement. In the system under investigation, which forms a dodecagonal quasicrystal, we show that this process occurs through the assimilation of stable icosahedral clusters by the growing quasicrystal. Our results demonstrate how local atomic interactions give rise to the long-range aperiodicity of quasicrystals.
description: 4 pages, 4 figures. Figures and text have been updated to the final version of the article
Culture et sociabilité minières: freins à la reconversion?
Creators: name: Cooper-Richet, Diana
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Culture et sociabilité minières: freins à la reconversion?" of MTS 30 (2003).
description: Moving the Social, Vol 30 (2003): Strukturwandel aus vergleichender regionaler Perspektive nach 1945
The spectral energy distribution of quiescent black hole X-ray binaries: new constraints from Spitzer
Creators: name: Gallo, E.
name: Migliari, S.
name: Markoff, S.
name: Tomsick, J.
name: Bailyn, C.
name: Berta, S.
name: Fender, R.
name: Miller-Jones, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) Among the various issues that remain open in the field of accretion onto black hole X-ray binaries (BHBs) is the way the gas accretes at very low Eddington ratios, in the so-called quiescent regime. While there is general agreement that the X-rays are produced by a population of high-energy electrons near to the BH, the controversy comes about in modeling the contribution from inflowing vs. outflowing particles, and their relative energy budget. Recent Spitzer observations of three quiescent BHBs have shown evidence for excess emission with respect to the tail of the companion star between 8-24 micron. We suggest that synchrotron emission from a partially self-absorbed outflow might be responsible for the observed mid-IR excess, in place of, or in addition to, thermal emission from circumbinary material. If so, then the jet synchrotron luminosity exceeds the measured 2-10 keV luminosity by a factor of a few in these systems. In turn, the mechanical power stored in the jet exceeds the bolometric X-ray luminosity at least by 4 orders of magnitude. We then compile the broadband spectral energy distribution (SED) of A0620-00, the lowest Eddington-ratio stellar mass BH with a known radio counterpart, by means of simultaneous radio, optical and X-ray observations, and the archival Spitzer data. We are able to fit the SED of A0620-00 with a `maximally jet-dominated' model in which the radio through the soft X-rays are dominated by synchrotron emission, while the hard X-rays are dominated by inverse Compton at the jet base. The fitted parameters land in a range of values that is reminiscent of the Galactic Center super-massive BH Sgr A*. Most notably, the inferred ratio of the jet acceleration rate to local cooling rates is two orders of magnitude weaker with respect to higher luminosity, hard state sources.
description: accepted by ApJ
Measurable Imbeddings: An Order-like Generalization of Measure Equivalence
Creators: name: Demir, Ahmet Özkan
Publisher: name: University of Illinois at Chicago
Year: 2024

description: We introduce and explore the notion of Measurable Imbedding, which gives a partial ordering among discrete countable groups. We show it behaves nicely under some group-theoretic operations like free products and graph products (generalizing the same results for Orbit Equivalence). Then, we explore rigidity and flexibility for this notion and prove some rigidity results for lattices in higher rank simple Lie groups (generalizing the same results for Measure Equivalence rigidity). Finally, we introduce a new invariant called measurable free rank, which can be thought of as a measurable version of noncommutative free subgroup rank of a group (introduced by Campagnolo and Kammeyer) and compute it for non-elementary hyperbolic groups as 1.
Strong Stein neighborhood bases
Creators: name: Sahutoglu, Sonmez
Publisher: name: arXiv
Year: 2007
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32W05

description: Let D be a smooth bounded pseudoconvex domain in C^n. We give several characterizations for the closure of D to have a strong Stein neighborhood basis in the sense that D has a defining function r such that {z\in C^n:r(z)0. We also show that this condition is invariant under proper holomorphic maps that extend smoothly to the boundary.
description: 14 pages, fixed same references, to appear in Complex Var. Elliptic Equ
Relation between scattering matrix topological invariants and conductance in Floquet Majorana systems
Creators: name: Simons, Thomas
name: Romito, Alessandro
name: Meidan, Dganit
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze the conductance of a one-dimensional topological superconductor periodically driven to host Floquet Majorana zero-modes for different configurations of coupling to external leads. We compare the conductance of constantly coupled leads, as in standard transport experiments, with the stroboscopic conductance of pulsed coupling to leads used to identify a scattering matrix topological index for periodically driven systems. We find that the sum of DC conductance at voltages multiples of the driving frequency is quantitatively close to the stroboscopic conductance at all voltage biases. This is consistent with previous work which indicated that the summed conductance at zero/pi resonance is quantized. We quantify the difference between the two in terms of the width of their respective resonances and analyze that difference for two different stroboscopic driving protocols of the Kitaev chain. While the quantitative differences are protocol-dependent, we find that generically the discrepancy is larger when the zero mode weight at the end of the chain depends strongly on the offset time between the driving cycle and the pulsed coupling period.
description: 11 pages, 4 figures
Zooming into the coexisting regime of ferromagnetism and superconductivity in ErRh4B4 single crystals
Creators: name: Prozorov, Ruslan
name: Vannette, Matthew D.
name: Law, Stephanie A.
name: Bud'ko, Sergey L.
name: Canfield, Paul C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: High resolution measurements of the dynamic magnetic susceptibility are reported for ferromagnetic re-entrant superconductor, ErRh$_{4}$B$_{4}$. Detailed investigation of the coexisting regime reveals unusual temperature-asymmetric and magnetically anisotropic behavior. The superconducting phase appears via a series of discontinuous steps upon warming from the ferromagnetic normal phase, whereas the ferromagnetic phase develops via a gradual transition. A model based on local field inhomogeneity is proposed to explain the observations.
Bibliographie mit Standortangaben zur Geschichte der deutschsprachigen Sektionen der Internationalen Arbeiter-Assoziation
Creators: name: Ernst, Ulrich
name: Hackenbracht, Achim
name: Kredinger, Ulrich
name: Rieseberg, Klaus
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Bibliographie mit Standortangaben zur Geschichte der deutschsprachigen Sektionen der Internationalen Arbeiter-Assoziation" of MTS 6 (1982).
description: Moving the Social, Vol 6 (1982): Forschungen und Forschungsberichte
Strange pentaquarks and excited $Ξ$ hyperons in $Ξ_b^- \to J/ψΛK^-$ final states
Creators: name: Karliner, Marek
name: Rosner, Jonathan L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We comment on the recent evidence by the LHCb Collaboration for a structure in the $J/ψΛ$ final state produced in the decay $Ξ^-_b \to J/ψΛK^-$, with minimal quark content $c \bar c u d s$.
description: To appear in Science Bulletin (2021)
A permanent formula for the Jones polynomial
Creators: name: Loebl, Martin
name: Moffatt, Iain
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Algebra (math.QA)
subject: Combinatorics (math.CO)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The permanent of a square matrix is defined in a way similar to the determinant, but without using signs. The exact computation of the permanent is hard, but there are Monte-Carlo algorithms that can estimate general permanents. Given a planar diagram of a link L with $n$ crossings, we define a 7n by 7n matrix whose permanent equals to the Jones polynomial of L. This result accompanied with recent work of Freedman, Kitaev, Larson and Wang provides a Monte-Carlo algorithm to any decision problem belonging to the class BQP, i.e. such that it can be computed with bounded error in polynomial time using quantum resources.
description: To appear in Advances in Applied Mathematics
Jahresbericht 1982/83 - Weitere Informationen aus dem Institut
Creators: name: Friedemann, Peter
name: Petzina, Dietmar
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Jahresbericht 1982/83 - Weitere Informationen aus dem Institut" of MTS 7 (1984).
description: Moving the Social, Vol 7 (1984): Forschungen und Forschungsberichte
Type VI Collagen Regulates Mineralization in TMJ Health and Disease.
Creators: name: Chaudhry, Minahil Fatima
Publisher: name: University of Illinois at Chicago
Year: 2024

description: This study investigates the role of pericellular Type VI Collagen (ColVI) in maintaining the integrity and function of temporomandibular joint (TMJ) cartilage and its involvement in TMJ osteoarthritis (TMJ OA). Type VI Collagen is a triple helix made of a1, a2, and a3 chains. Knocking out one chain ensures that the collagen is not released in the extracellular matrix (ECM). Hence we utilized Col6a1 chain knocked-out mice and explored the effects of Type VI collagen deficiency through various techniques such as RT-qPCR, Western blot, immunohistochemistry, and microcomputed tomography (μCT). This is done to assess gene expression, protein processing, and bone structure in Col6a1ko mice. Additionally, as Type VI Collagen is both a signaling and structural molecule, we aimed to determine whether ColVI affects the ECM through signaling or mechanotransduction.

The results revealed that the absence of the Col6α1 chain leads to suppressed biomineralization, dysfunctional endochondral ossification, and abnormal ERK signaling. μCT analysis validated structural changes, highlighting the critical role of ColVI in maintaining bone density and architecture. Col6a1 knockout mice exhibited significant alterations in bone structure, such as reduced bone volume, decreased trabecular numbering, and increased trabecular spacing causing compromised bone integrity, particularly under osteoarthritic conditions.

The findings underscore the importance of ColVI in preserving cartilage integrity and suggest its potential as a therapeutic target for mitigating cartilage degradation and improving joint health in TMJ OA.
Metal-Insulator Transition and Emergent Gapped Phase in the Surface-Doped 2D Semiconductor 2H-MoTe$_2$
Creators: name: Han, T. T.
name: Chen, L.
name: Cai, C.
name: Wang, Z. G.
name: Wang, Y. D.
name: Xin, Z. M.
name: Zhang, Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Artificially created two-dimensional (2D) interfaces or structures are ideal for seeking exotic phase transitions due to their highly tunable carrier density and interfacially enhanced many-body interactions. Here, we report the discovery of a metal-insulator transition (MIT) and an emergent gapped phase in the metal-semiconductor interface that is created in 2H-MoTe$_2$ via alkali-metal deposition. Using angle-resolved photoemission spectroscopy, we found that the electron-phonon coupling is strong at the interface as characterized by a clear observation of replica shake-off bands. Such strong electron-phonon coupling interplays with disorder scattering, leading to an Anderson localization of polarons which could explain the MIT. The domelike emergent gapped phase could then be attributed to a polaron extended state or phonon-mediated superconductivity. Our results demonstrate the capability of alkali-metal deposition as an effective method to enhance the many-body interactions in 2D semiconductors. The surface-doped 2H-MoTe$_2$ is a promising candidate for realizing polaronic insulator and high-$T_c$ superconductivity.
description: 11 pages, 4 figures, See Supplemental Material at http://link.aps.org/ supplemental/10.1103/PhysRevLett.126.106602
Mass Determination in SUSY-like Events with Missing Energy
Creators: name: Cheng, Hsin-Chia
name: Gunion, John F.
name: Han, Zhenyu
name: Marandella, Guido
name: McElrath, Bob
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We describe a kinematic method which is capable of determining the overall mass scale in SUSY-like events at a hadron collider with two missing (dark matter) particles. We focus on the kinematic topology in which a pair of identical particles is produced with each decaying to two leptons and an invisible particle (schematically, $pp\to YY+jets$ followed by each $Y$ decaying via $Y\to \ell X\to \ell\ell'N$ where $N$ is invisible). This topology arises in many SUSY processes such as squark and gluino production and decay, not to mention $t\anti t$ di-lepton decays. In the example where the final state leptons are all muons, our errors on the masses of the particles $Y$, $X$ and $N$ in the decay chain range from 4 GeV for 2000 events after cuts to 13 GeV for 400 events after cuts. Errors for mass differences are much smaller. Our ability to determine masses comes from considering all the kinematic information in the event, including the missing momentum, in conjunction with the quadratic constraints that arise from the $Y$, $X$ and $N$ mass-shell conditions. Realistic missing momentum and lepton momenta uncertainties are included in the analysis.
description: 41 pages, 14 figures, various clarifications and expanded discussion included in revised version that conforms to the version to be published
Developing Biosensors for Food Safety Analysis
Creators: name: AVCI, Hüseyin
name: ANIL, Hande
name: KOÇ, Yücel
name: Uğur MORALI
name: EROL, Salim
Publisher: name: Zenodo
Year: 2019
Subjects: Screen Printed Elektrodes (SPE), Food Toxin Substance Analysis, Domoic Acid (DA)

description: Toxin substances are among the biohazard elements that threaten the safety of food and can cause death of living organisms. Apart from the traditional methods, biosensors for analysis food toxins have found wide usage area in recent years. These sensors have been named by the addition of biological materials such as enzymes, cells, tissues, antibodies, DNA, etc. to their structures. In this study, screen printed electrodes (SPE) were used for the determination of food toxin. SPEs are single-use and cost-effective materials. In addition, these small devices are easy to use and suitable for real-time detection without the need for laborious pre-treatments and trained users. In this study, first of all, the gold SPEs were incubated with K3Fe(CN)6 redox probe and electrochemical impedance analysis (EIS) of the samples were characterized and then evaluated. In order to give biofunctional properties to SPEs, biofunctionalized SPE impedance measurements were taken by incubating 0.01 ng/ml, 0.1 ng/ml, 1 ng/ml domoic acid (DA) solution. Nyquist graphs obtained after modifying SPE which were modeled with appropriate equivalent electrical circuit. In the results obtained, an increase in Rct was observed as a result of the binding of the toxin substance to the anti-toxin-Mab. This increase in Rct value also increased due to the increase in DA concentration. In addition, surface morphological features of SPEs were examined by atomic force microscopy (AFM) and the possible problems that could be encountered for EIS measurements of the other intermediate layers to be formed on the surface in future studies were discussed. As a result, it is expected that this biosensor will work with low error margins, and the results of the toxin analysis have significant consequences for the future studies.
title: Методология и методы научных экономических исследований
Creators: name: ELS IPR BOOKS
Publisher: name: Международный банковский институт имени Анатолия Собчака
Year: 2019

description: В учебнике раскрываются как методологические, так и методические проблемы научных исследований в экономике. Наряду с общими вопросами методологии в учебнике приводятся основные положения системного подхода, теории определений, теории классификаций, теории экономических измерений и моделирования. Рассматриваются задачи практического применения методологии и анализируемых теоретических положений в научном экономическом исследовании, приводятся примеры их реализации. Учебник содержит вопросы для самопроверки и тесты, выполнение которых способствует приобретению необходимых компетенций, определенных федеральными государственными образовательными стандартами по направлению «Экономика» 38.04.01 (уровень магистратуры) и 38.06.01 (уровень подготовки кадров высшей квалификации). Для магистрантов и аспирантов, обучающихся по направлению подготовки «Экономика». Издание может быть полезно как для студентов, занимающихся научными разработками, так и для научных работников, специализирующихся в области экономических исследований.
Some Observations for Mean-Field Spin Glass Models
Creators: name: Starr, Shannon
name: Vermesi, Brigitta
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B44; 60K35

description: We obtain bounds to show that the pressure of a two-body, mean-field spin glass is a Lipschitz function of the underlying distribution of the random coupling constants, with respect to a particular semi-norm. This allows us to re-derive a result of Carmona and Hu, on the universality of the SK model, by a different proof, and to generalize this result to the Viana-Bray model. We also prove another bound, suitable when the coupling constants are not independent, which is what is necessary if one wants to consider ``canonical'' instead of ``grand canonical'' versions of the SK and Viana-Bray models. Finally, we review Viana-Bray type models, using the language of Lévy processes, which is natural in this context.
description: 15 pages, minor revisions
Role of electronic correlations in the Fermi surface formation of Na$_x$CoO$_2$
Creators: name: Shorikov, A. O.
name: Korshunov, M. M.
name: Anisimov, V. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Band structure of metallic sodium cobaltate Na$_x$CoO$_2$ ($x$=0.33, 0.48, 0.61 0.72) has been investigated by local density approximation+Hubbard $U$ (LDA+$U$) method and within Gutzwiller approximation for the Co-$t_{2g}$ manifold. Correlation effects being taken into account results in suppression of the $e'_g$ hole pockets at the Fermi surface in agreement with recent angle-resolved photo-emission spectroscopy (ARPES) experiments. In the Gutzwiller approximation the bilayer splitting is significantly reduced due to the correlation effects. The formation of high spin (HS) state in Co $d$-shell was shown to be very improbable.
description: 6 pages, 2 figures
Basisdemokratie und Funktionärherrschaft: Zur Kritik von Robert Michels' Organisationsanalyse der deutschen Arbeiterbewegung
Creators: name: Eisenberg, Christiane
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Basisdemokratie und Funktionärherrschaft: Zur Kritik von Robert Michels' Organisationsanalyse der deutschen Arbeiterbewegung" of MTS 9 (1990).
description: Moving the Social, Vol 9 (1990): "Gründerväter - Bürokraten - Akademiker". Zur Rekrutierung des gewerkschaftlichen Führungspersonals