cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Disrupted Functional Connectivity of Idiopathic Hypogonadotropic Hypogonadism according to Olfactory Function
Creators: name: Cui, Ling-ling
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Case-control study
subject: Prospective
subject: Genetic defects
subject: Endocrine disorders
subject: Congenital
subject: Experimental investigations
subject: MR-Functional imaging
subject: MR
subject: Neuroradiology brain
subject: Head and neck
subject: Ear / Nose / Throat
subject: Neuro

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Idiopathic hypogonadotropic hypogonadism (IHH) is a rare disease, which can either be associated with a normal or defective sense of smell, respectively, identifying the normosmic IHH (nIHH) or the Kallmann’s syndrome (KS). The mechanisms behind...
Homelessness and its Consequences
Creators: name: Redlener, Irwin E.
Publisher: name: Columbia University
Year: 2005
Subjects: Homelessness
Homeless persons--Medical care
Homeless persons--Services for

description: Understanding the implications and meaningful details of homelessness helps to clarify the health care challenges that homeless people and the service providers who care for them face on a daily basis. This is not just a matter of very disadvantaged children who need medical care and a food pantry; it is also about families who live in a state of social isolation and excessive risk physically and emotionally.
Understanding e-service failures : formation, impact and recovery
Creators: name: Tan, Chee-Wee
Publisher: name: University of British Columbia
Year: 2011

description: E-service failure has been the bane of e-commerce by compelling consumers to either abandon transactions entirely or to switch to traditional brick-and-mortar establishments. More often than not, it is not the manifestation of e-service failure that drives away consumers, but rather, the absence or inadequacies of service recovery solutions that led to undeserved anger and frustration. Yet, despite the ‘dangers’ posed by e-service failures, there has not been a study to-date that systematically investigates how perceptions of failure emerge within an online transactional environment and what can be done to address these sources of potential consumer disappointments. Drawing on the Expectation Disconfirmation Theory (EDT) and the Counterfactual Thinking Perspective, this study synthesizes contemporary literature to arrive at separate typologies of e-service failure and recovery. Then, an integrated theory of e-service failure and recovery is constructed together with testable hypotheses. To empirically validate the model, two studies have been conducted and their designs elaborated. Essentially, findings from the two studies serve to inform both academics and practitioners on: (1) how consumer perceptions of different types of e-service failure manifest on e-commerce websites; (2) the impact of these perceptual failures on consumers’ expectations about transactional outcome, process and cost, as well as; (3) what kind of e-service recovery technology would be beneficial in alleviating negative failure consequences.
Evaluating the Model Representation of Asian Summer Monsoon UTLS Transport and Composition using Airborne In Situ Observations
Creators: name: Smith, Warren P
name: Pan, Laura L
name: Kinnison, Douglas Edward
name: Atlas, Elliot L.
name: Honomichl, Shawn
name: Zhang, Jun
name: Tilmes, Simone
name: Fernandez, Rafael Pedro
name: Saiz-Lopez, Alfonso
name: Treadaway, Victoria
name: Adcock, Karina E
name: Laube, Johannes C.
name: Hobe, M. von
name: Kloss, Corinna
name: Viciani, Silvia
name: D'Amato, Francesco
name: Volk, C. Michael
name: Ravegnani, Fabrizio
Publisher: name: Forschungzentrum Jülich
Year: 2023

description: ESS Open Archive (2023). doi:10.22541/essoar.169111380.07895329/v1
Global ISR: Toward a Comprehensive Defense Against Unauthorized Code Execution
Creators: name: Portokalidis, Georgios
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2010
Subjects: Computer science

description: Instruction-set randomization (ISR) obfuscates the "language" understood by a system to protect against code-injection attacks by presenting an ever-changing target. ISR was originally motivated by code injection through buffer overflow vulnerabilities. However, Stuxnet demonstrated that attackers can exploit other vectors to place malicious binaries into a victim’s filesystem and successfully launch them, bypassing most mechanisms proposed to counter buffer overflows. We propose the holistic adoption of ISR across the software stack, preventing the execution of unauthorized binaries and scripts regardless of their origin. Our approach requires that programs be randomized with different keys during a user-controlled installation, effectively combining the benefits of code whitelisting/signing and runtime program integrity. We discuss how an ISR-enabled environment for binaries can be implemented with little overhead in hardware, and show that higher-overhead software only alternatives are possible. We use Perl and SQL to demonstrate the application of ISR in scripting environments with negligible overhead.
title: Skeleton of hero World War III carrier pigeon found in the cloud with a secret message still attached to its leg (and now Utah Data Center are trying to crack the code)
Creators: name: Conrads, Martin
name: Morlok, Franziska
name: Blos, Valerian
name: Friedrich, David
name: Gewinner, Malin
name: Gieseking, Jan
name: Kliesch, Marion Alina
name: Loos, Franziska
name: Mester, Jessica
name: Röhrs, Ann-Kristin
Publisher: name: Universität der Künste Berlin
Year: 2015

description: Seit den Enthüllungen Edward Snowdens im Jahr 2013 hat sich die Brieftaube als das grafische Konzept etabliert, umfassenden und dauerhaften Verlust informationeller Selbstbestimmung zu symbolisieren. Seither zumindest kursieren ironisch gemeinte Bilder und Bemerkungen zur Rückkehr der Brieftaube als abhörsicherer Netzwerktechnologie. Kurz: als Mem ist die Brieftaube für die sogenannte globale Überwachungs- und Spionageaffäre das, was die Katze für das Web ist.

Eine Gruppe von Studierenden der Visuellen Kommunikation an der Universität der Künste Berlin erforschte im Wintersemester 2013/14 aus einer Design-Perspektive das Image der Brieftaube als Teil des militärisch-industriellen Komplexes (Seminarleitung: Martin Conrads und Franziska Morlok). Ergebnis war die Gestaltung eines virtuellen Taubenschlags in der öffentlich einsehbaren Vitrine der Galerie „designtransfer“ (UdK Berlin). Die Ausstellung fand, in fünf Folgen unterteilt, Anfang 2014 statt und war Teil des „Vorspiel“-Rahmenprogramms der transmediale 2014 afterglow und des CTM-Festivals. Die Arbeiten wurden nun in dieser PDF-Dokumentation erstmals offline zusammengeführt. Zusätzlich stellen von den Beteiligten verfasste Texte aus unterschiedlichen Perspektiven Zusammenhänge zur Ideologie der Kontrollgesellschaft her.

Das Layout dieser PDF-Publikation ist für Tablet-Computer optimiert. Die Form, in der Texte und Bilder im Layout wiedergegeben werden, entspricht dabei einem Blick auf das NSA-Utah Data Center aus der Vogelperspektive.  Der Titel bezieht sich auf eine Zeitungsschlagzeile aus dem Jahr 2012: „Skeleton of hero World War II carrier pigeon found in chimney with a secret message still attached to its leg (and now Bletchley Park are trying to crack the code)“. 

Gestaltung: Martin Conrads, Franziska Morlok
Measuring the Deployment Hiccups of DNSSEC
Creators: name: Pappas, Vasileios
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2011
Subjects: Computer science

description: On May 5, 2010 the last step of the DNSSEC deployment on the 13 root servers was completed. DNSSEC is a set of security extensions on the traditional DNS protocol, that aim in preventing attacks based on the authenticity and integrity of the messages. Although the transition was completed without major faults, it is not clear whether problems of smaller scale occurred. In this paper we try to quantify the effects of that transition, using as many vantage points as possible. In order to achieve that, we deployed a distributed DNS monitoring infrastructure over the PlanetLab and gathered periodic DNS lookups, performed from each of the roughly 300 nodes, during the DNSSEC deployment on the last root name server. In addition, in order to broaden our view, we also collected data using the Tor anonymity network. After analyzing all the gathered data, we observed that around 4% of the monitored networks had an interesting DNS query failure pattern, which, to the best of our knowledge, was due to the transition.
Challenging the Long Tail Recommendation
Creators: name: Yin, Hongzhi
name: Cui, Bin
name: Li, Jing
name: Yao, Junjie
name: Chen, Chen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: The success of "infinite-inventory" retailers such as Amazon.com and Netflix has been largely attributed to a "long tail" phenomenon. Although the majority of their inventory is not in high demand, these niche products, unavailable at limited-inventory competitors, generate a significant fraction of total revenue in aggregate. In addition, tail product availability can boost head sales by offering consumers the convenience of "one-stop shopping" for both their mainstream and niche tastes. However, most of existing recommender systems, especially collaborative filter based methods, can not recommend tail products due to the data sparsity issue. It has been widely acknowledged that to recommend popular products is easier yet more trivial while to recommend long tail products adds more novelty yet it is also a more challenging task. In this paper, we propose a novel suite of graph-based algorithms for the long tail recommendation. We first represent user-item information with undirected edge-weighted graph and investigate the theoretical foundation of applying Hitting Time algorithm for long tail item recommendation. To improve recommendation diversity and accuracy, we extend Hitting Time and propose efficient Absorbing Time algorithm to help users find their favorite long tail items. Finally, we refine the Absorbing Time algorithm and propose two entropy-biased Absorbing Cost algorithms to distinguish the variation on different user-item rating pairs, which further enhances the effectiveness of long tail recommendation. Empirical experiments on two real life datasets show that our proposed algorithms are effective to recommend long tail items and outperform state-of-the-art recommendation techniques.
description: VLDB2012
Children in a Post-9/11 World
Creators: name: Redlener, Irwin E.
Publisher: name: Columbia University
Year: 2005
Subjects: Child disaster victims
Emergency management--Planning
Children and terrorism
Terrorism

description: There is a special set of concerns with respect to children in a post·9/ll world. With the enormous national effort being made to prevent terrorism and particularly to enhance response capacity to unconventional weapons of terror, the special needs of children must be accounted for in preparedness planning at all levels. The important principle is that children are not "little adults" in terms of how they might respond to many potential chemical or biological weapons.
The QCD Critical End Point in the Context of the Polyakov--Nambu--Jona-Lasinio Model
Creators: name: Costa, Pedro
name: de Sousa, C. A.
name: Ruivo, M. C.
name: Hansen, H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the phase diagram of the so-called Polyakov--Nambu--Jona-Lasinio model at finite temperature and nonzero chemical potential with three quark flavors. Chiral and deconfinement phase transitions are discussed, and the relevant order-like parameters are analyzed. A special attention is payed to the critical end point (CEP): the influence of the strangeness on the location of the CEP is studied; also the strength of the flavor-mixing interaction alters the CEP location, once when it becomes weaker the CEP moves to low temperatures and can even disappear.
description: Prepared for Strangeness in Quark Matter 2011, Sept. 18--24, Cracow, Poland
title: Diagnostic performance of 18F-PSMA-1007 PET/CT in biochemically relapsed prostate cancer patients with PSA levels ≤2.0 ng/ml
Creators: name: Witkowska-Patena, Ewa
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Oncologic Imaging
subject: Genital / Reproductive system male
subject: PET-CT
subject: Diagnostic procedure
subject: Localisation
subject: Molecular imaging
subject: Cancer
subject: Multidisciplinary cancer care
subject: Prospective
subject: Diagnostic or prognostic study
subject: Performed at one institution
subject: Oncologic Imaging

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The aim of the study was to evaluate diagnostic performance (sensitivity, specificity, negative predictive value (NPV) and positive predictive value (PPV)) of 18F-PSMA-1007 PET/CT and compare it with 18F-FCH PET/CT in prostate cancer (PCa) patients...
Improving generalization for polyphonic piano transcription
Creators: name: Poliner, Graham E.
name: Ellis, Daniel P. W.
Publisher: name: Columbia University
Year: 2007
Subjects: Electrical engineering
Artificial intelligence

description: In this paper, we present methods to improve the generalization capabilities of a classification-based approach to polyphonic piano transcription. Support vector machines trained on spectral features are used to classify frame-level note instances, and the independent classifications are temporally constrained via hidden Markov model post-processing. Semi-supervised learning and multiconditioning are investigated, and transcription results are reported for a compiled set of piano recordings. A reduction in the frame-level transcription error score of 10% was achieved by combining multiconditioning and semi-supervised classification.
Characterization of refractory aerosol particles collected in the tropical UTLS within the Asian Tropopause Aerosol Layer (ATAL)
Creators: name: Ebert, Martin
name: Weigel, Ralf
name: Weinbruch, Stephan
name: Schneider, Lisa
name: Kandler, Konrad
name: Lauterbach, Stefan
name: Köllner, Franziska
name: Ploeger, Felix
name: Günther, Gebhard
name: Vogel, Bärbel
name: Borrmann, Stephan
Publisher: name: Forschungzentrum Jülich
Year: 2023

description: doi:10.5194/egusphere-2023-2245
title: Diagnostic Imaging of typical lung carcinoids: relationship between MDCT and nuclear imaging features with Ki-67 index.
Creators: name: Danti, Ginevra
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Chest
subject: Lung
subject: Nuclear medicine
subject: Oncology
subject: CT
subject: Nuclear medicine conventional
subject: Biopsy
subject: Cancer
subject: Retrospective
subject: Observational
subject: Performed at one institution
subject: Chest

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Typical carcinoids (TCs) areprimary lung neoplasms, accounting for only 1-2% of all pulmonary tumours.The mitotic count and the presence or the absence of necrosis are currently the main criteria for classification of TCs. In particular TCs have a...
Non-Gaussian signatures of Tachyacoustic Cosmology
Creators: name: Bessada, Dennis
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: I investigate non-Gaussian signatures in the context of tachyacoustic cosmology, that is, a noninflationary model with superluminal speed of sound. I calculate the full non-Gaussian amplitude $\mathcal{A}$, its size $f_{\rm NL}$, and corresponding shapes for a red-tilted spectrum of primordial scalar perturbations. Specifically, for cuscuton-like models I show that $f_{\rm NL}\sim {\cal O}(1)$, and the shape of its non-Gaussian amplitude peaks for both equilateral and local configurations, the latter being dominant. These results, albeit similar, are quantitatively distinct from the corresponding ones obtained by Magueijo {\it{et. al}} in the context of superluminal bimetric models.
description: Some comments and references added. Matches the version published in JCAP
title: Low-dose protocol based on iterative reconstructions for the drainage of pelvic collections performed under computed tomography guidance: a pilot study
Creators: name: Scrofani, Anna Rita
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Case-control study
subject: Retrospective
subject: Outcomes
subject: Abscess
subject: Complications
subject: Catheters
subject: Percutaneous
subject: CT
subject: Conventional radiography
subject: Pelvis
subject: Interventional non-vascular
subject: Abdomen
subject: Interventional Radiology

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Pelvic collections often represent a clinical challenge due to their location, in close relationship to the pelvic bones, the bladder and neurovascular structures [1-2]. In such patients, the use of CT (Computed Tomography) guidance for percutaneous...
title: Validation of a scoring system for interpreting unenhanced breast magnetic resonance imaging
Creators: name: Jerman, Katerina
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Diagnostic or prognostic study
subject: Retrospective
subject: Cancer
subject: Imaging sequences
subject: MR
subject: Breast

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: CEMRI is widely used for preoperative assessment of breast cancer due to high sensitivity in detecting additional disease and accurate prediction of cancer size at pathology [1-4]. However, some factors limit the widespread adoption of CEMRI in this...
Phase transitions and dark-state physics in two-color superradiance
Creators: name: Hayn, Mathias
name: Emary, Clive
name: Brandes, Tobias
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We theoretically study an extension of the Dicke model, where the single-particle Hamiltonian has three energy levels in Lambda-configuration, i.e. the excited state is coupled to two non-degenerate ground states via two independent quantized light fields. The corresponding many-body Hamiltonian can be diagonalized in the thermodynamic limit with the help of a generalized Holstein--Primakoff transformation. Analyzing the ground-state energy and the excitation energies, we identify one normal and two superradiant phases, separated by phase transitions of both first and second order. A phase with both superradiant states coexisting is not stable. In addition, in the limit of two degenerate ground states a dark state emerges, which seems to be analogous to the dark state appearing in the well known stimulated Raman adiabatic passage scheme.
description: 9 pages, 6 figures
ROP Payload Detection Using Speculative Code Execution
Creators: name: Polychronakis, Michalis
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2011
Subjects: Computer science

description: The prevalence of code injection attacks has led to the wide adoption of exploit mitigations based on nonexecutable memory pages. In turn, attackers are increasingly relying on return-oriented programming (ROP) to bypass these protections. At the same time, existing detection techniques based on shellcode identification are oblivious to this new breed of exploits, since attack vectors may not contain binary code anymore. In this paper, we present a detection method for the identification of ROP payloads in arbitrary data such as network traffic or process memory buffers. Our technique speculatively drives the execution of code that already exists in the address space of a targeted process according to the scanned input data, and identifies the execution of valid ROP code at runtime. Our experimental evaluation demonstrates that our prototype implementation can detect a broad range of ROP exploits against Windows applications without false positives, while it can be easily integrated into existing defenses based on shell-code detection.
title: Visualization of thermal flow inside a biomedical sample using novel X-ray thermography
Creators: name: Yoneyama, Akio
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Experimental
subject: Prospective
subject: Tissue characterisation
subject: Image registration
subject: Drugs / Reactions
subject: Physics
subject: Instrumentation
subject: Experimental
subject: Digital radiography
subject: Soft tissues / Skin
subject: Radiation physics
subject: Physics in Medical Imaging

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Temperature is one of the basic physical values of materials along with length and element, and it is used as an indicator for the severity of diseases and allergic reactions in the biomedical field. In addition, heating is also used in hyperthermia...
title: Role of Ultrasound Guided creation of Artificial Ascites and Sub diaphragmatic infiltration of Local Anesthetic agent before Liver Biopsy: How it affects outcome?
Creators: name: Suthar, Pokhraj
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Prospective
subject: Outcomes
subject: Biopsy
subject: Ultrasound
subject: Liver
subject: Abdomen
subject: Interventional Radiology

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Liver biopsy is painful procedure. Many patients experience gasping with pain while biopsy needle pierce through liver capsule and post biopsy some patient experience pain in right hypochondriac region of abdomen and referred pain in right shoulder...
Vainshtein screening in a cosmological background in the most general second-order scalar-tensor theory
Creators: name: Kimura, Rampei
name: Kobayashi, Tsutomu
name: Yamamoto, Kazuhiro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A generic second-order scalar-tensor theory contains a nonlinear derivative self-interaction of the scalar degree of freedom $ϕ$ à la Galileon models, which allows for the Vainshtein screening mechanism. We investigate this effect on subhorizon scales in a cosmological background, based on the most general second-order scalar-tensor theory. Our analysis takes into account all the relevant nonlinear terms and the effect of metric perturbations consistently. We derive an explicit form of Newton's constant, which in general is time-dependent and hence is constrained from observations, as suggested earlier. It is argued that in the most general case the inverse-square law cannot be reproduced on the smallest scales. Some applications of our results are also presented.
description: 12 pages, 5 figures, v2: published in PRD
Raman spectroscopy study of rotated double-layer graphene: Misorientation-angle dependence of electronic structure
Creators: name: Kim, Kwanpyo
name: Coh, Sinisa
name: Tan, Liang Z.
name: Regan, William
name: Yuk, Jong Min
name: Chatterjee, Eric
name: Crommie, M. F.
name: Cohen, Marvin L.
name: Louie, Steven G.
name: Zettl, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a systematic Raman study of unconventionally-stacked double-layer graphene, and find that the spectrum strongly depends on the relative rotation angle between layers. Rotation-dependent trends in the position, width and intensity of graphene 2D and G peaks are experimentally established and accounted for theoretically. Our theoretical analysis reveals that changes in electronic band structure due to the interlayer interaction, such as rotational-angle dependent Van Hove singularities, are responsible for the observed spectra features. Our combined experimental and theoretical study provides a deeper understanding of the electronic band structure of rotated double-layer graphene, and leads to a practical way to identify and analyze rotation angles of misoriented double-layer graphene.
description: To appear in Phys. Rev. Lett., added extra data, 22 pages with 10 figures (including 6 supplementary figures)
The American Monsoon Systems
Creators: name: Robertson, Andrew W.
name: Mechoso, Carlos R.
name: Ropelewski, Chester F.
name: Grimm, Alice M.
Publisher: name: Columbia University
Year: 2005
Subjects: Monsoons
Atmosphere
Meteorology

description: This paper examines similarities and differences among major features of the North and South American monsoon systems. Over both North and South America the summertime circulation shows upper-level anticyclone/low-level heat low structures. These develop at different distances from the equator. It is argued that ascent to the east where convective and subtropical convergence zones develop, and subsidence over the cool waters of the eastern Pacific where stratocumulus decks provide a radiative heat sink to the tropical atmosphere are integral and unifying aspects of both monsoon systems. The intraseasonal and interannual variability of the systems are contrasted. The reported links between anomalies in soil conditions and sea surface temperatures are marginal, and consistently long-range predictability is low. Ropelewski et al. (2004) and Grimm et al. (2004) focus on each of the American monsoon systems in companion papers.
title: Interactions of the Default-Mode and the Central-Executive Networks in patients with subcortical vascular mild cognitive impairment
Creators: name: Sun, Yawen
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Diagnostic or prognostic study
subject: Prospective
subject: Ischaemia / Infarction
subject: Hypertension
subject: Dementia
subject: Statistics
subject: FOS: Mathematics
subject: Outcomes analysis
subject: Experimental investigations
subject: Neural networks
subject: MR-Functional imaging
subject: MR
subject: Vascular
subject: Neuroradiology brain
subject: CNS
subject: Neuro

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The default-mode network (DMN) activity decreases in subcortical vascular mild cognitive impairment (svMCI). The central executive network (CEN), which is also a key network in svMCI, has the antagonistic activity to DMN.The current study aimed to...
Intersection theory on Shimura surfaces II
Creators: name: Howard, Benjamin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: This is the third of a series of papers relating intersections of special cycles on the integral model of a Shimura surface to Fourier coefficients of Hilbert modular forms. More precisely, we embed the Shimura curve over Q associated to a rational quaternion algebra into the Shimura surface associated to the base change of the quaternion algebra to a real quadratic field. After extending the associated moduli problems over Z we obtain an arithmetic threefold with a embedded arithmetic surface, which we view as a cycle of codimension one. We then construct a family, indexed by totally positive algebraic integers in the real quadratic field, of codimension two cycles (complex multiplication points) on the arithmetic threefold. The intersection multiplicities of the codimension two cycles with the fixed codimension one cycle are shown to agree with the Fourier coefficients of a (very particular) Hilbert modular form of weight 3/2. The results are higher dimensional variants of results of Kudla-Rapoport-Yang, which relate intersection multiplicities of special cycles on the integral model of a Shimura curve to Fourier coefficients of a modular form in two variables.
Simple Lie algebras arising from Leavitt path algebras
Creators: name: Abrams, Gene
name: Mesyan, Zachary
Publisher: name: arXiv
Year: 2011
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16D30, 16S99, 17B60

description: For a field K and directed graph E, we analyze those elements of the Leavitt path algebra L_K(E) which lie in the commutator subspace [L_K(E), L_K(E)]. This analysis allows us to give easily computable necessary and sufficient conditions to determine which Lie algebras of the form [L_K(E), L_K(E)] are simple, when E is row-finite (i.e., has finite out-degree) and L_K(E) is simple.
description: 18 pages. In the second version the exposition has been improved, and various typos and minor errors have been corrected
Fixed-point-free elements of iterated monodromy groups
Creators: name: Jones, Rafe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 37P05, 37F10

description: The iterated monodromy group of a post-critically finite complex polynomial of degree d \geq 2 acts naturally on the complete d-ary rooted tree T of preimages of a generic point. This group, as well as its pro-finite completion, act on the boundary of T, which is given by extending the branches to their "ends" at infinity. We show that for nearly all polynomials, elements that have fixed points on the boundary are rare, in that they belong to a set of Haar measure zero. The exceptions are those polynomials linearly conjugate to multiples of Chebyshev polynomials and a case that remains unresolved, where the polynomial has a non-critical fixed point with many critical pre-images. The proof involves a study of the finite automaton giving the action of generators of the iterated monodromy group, and an application of a martingale convergence theorem. Our result is motivated in part by applications to arithmetic dynamics, where iterated monodromy groups furnish the "geometric part" of certain Galois extensions encoding information about densities of dynamically interesting sets of prime ideals.
description: 30 pages, 5 figures
title: Radiomics and CE-MDCT features in prediction of NETs microvascular density and grade
Creators: name: Gruzdev, Ivan
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Oncologic Imaging
subject: Oncology
subject: Pancreas
subject: Retroperitoneum
subject: CT
subject: Computer Applications-Detection, diagnosis
subject: Endocrine disorders
subject: Neoplasia
subject: Tissue characterisation
subject: Retrospective
subject: Diagnostic or prognostic study
subject: Performed at one institution
subject: Oncologic Imaging

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Aims and objectives Pancreatic neuroendocrine tumors (PNETs) are quite rare and present only about 2% of all pancreatic neoplasias [1] but are potentially malignant [2]. The prognosis and treatment plan of PNETs are based on WHO 2010 classification...
Action principle for the Fluid-Gravity correspondence and emergent gravity
Creators: name: Kolekar, Sanved
name: Padmanabhan, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It has been known for a long time that Einstein's field equations when projected onto a black hole horizon looks very similar to a Navier-Stokes equation in suitable variables. More recently, it was shown that the projection of Einstein's equation on to any null surface in any spacetime reduces exactly to the Navier-Stokes form when viewed in the freely falling frame. We develop an action principle, the extremization of which leads to the above result, in an arbitrary spacetime. The degrees of freedom varied in the action principle are the null vectors in the spacetime and not the metric tensor. The same action principle was introduced earlier in the context of emergent gravity paradigm wherein it was shown that the corresponding Lagrangian can be interpreted as the entropy density of spacetime. The current analysis strengthens this interpretation and reinforces the idea that field equations in gravity can be thought of as emergent. We also find that the degrees of freedom on the null surface are equivalent to a fluid with equation of state PA = TS. We demonstrate that the same relation arises in the context of a spherical shell collapsing to form a horizon.
description: v1: 12 Pages, No figure v2: refs added, discussion added, accepted in Physical Review D
Temperature-dependent steady and transient emission properties of InGaN/GaN multiple quantum well nanorods
Creators: name: Jiang, Bin
name: Zhang, Chunfeng
name: Wang, Xiaoyong
name: Xue, Fei
name: Park, Min Joo
name: Kwak, Joon Seop
name: Xiao, Min
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We observed different temperature-dependent behaviors of steady and transient emission properties in dry-etched InGaN/GaN multiple-quantum-well (MQW) nanorods and the parent MQWs. To clarify the impacts of nanofabrication on the emission properties, time-resolved photoluminescence spectra were recorded at various temperatures with carrier density in different regimes. The confinement of carrier transport was observed to play an important role to the emission properties in nanorods, inducing different temperature-dependent photoluminescence decay rates between the nanorods and MQWs. Moreover, together with other effects, such as surface damages and partial relaxation of the strain, the confinement effect causes faster recombination of carriers in nanorods.
description: 13 pages, 4 figures
title: GWK.
Creators: name: Bluemelhuber, Christian
name: Düllo, Thomas
name: Fertmann, Johannes
name: Gasteier, Klaus
name: Häfner, Michael
name: Hartmann, Maren
name: Ingen-Housz, Timothée
name: Liebl, Franz
name: Müller, Robert Caspar
name: Porombka, Stephan
name: Schulz, Jürgen
name: Suckfüll, Monika
name: Wächter, Sylvia
name: Universität Der Künste Berlin
Publisher: name: Universität der Künste Berlin
Year: 2018

description: Die Autoren – Professoren und Mitarbeiter der GWK – stellen richtige und falsche Fragen, üben mit uns das Liken und Faven und duellieren Times und Helvetica. Sie bewerben Wirkungsfiktionen, verknüpfen das Gesagte mit dem Gemeinten und ... lesen Sie selbst! GWK001 bereist die Landschaft der Kommunikation, verhandelt Positionen, knüpft Verbindungen – erzählt manche Geschichte und fordert Sie auch mal zum Handeln auf! So wirkt GWK als Seismograph, Übersetzer und (Mit-) Gestalter von soziokulturellen und kommunikativen Wandlungen.
description: GWK., 2017, H. 001
Long-lived driven solid-state quantum memory
Creators: name: Cai, J. -M.
name: Jelezko, F.
name: Katz, N.
name: Retzker, A.
name: Plenio, M. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the performance of inhomogeneously broadened spin ensembles as quantum memories under continuous dynamical decoupling. The role of the continuous driving field is two-fold: first, it decouples individual spins from magnetic noise; second and more important, it suppresses and reshapes the spectral inhomogeneity of spin ensembles. We show that a continuous driving field, which itself may also be inhomogeneous over the ensemble, can enhance the decay of the tails of the inhomogeneous broadening distribution considerably. This fact enables a spin ensemble based quantum memory to exploit the effect of cavity protection and achieve a much longer storage time. In particular, for a spin ensemble with a Lorentzian spectral distribution, our calculations demonstrate that continuous dynamical decoupling has the potential to improve its storage time by orders of magnitude for the state-of-art experimental parameters.
title: Composition-Guided Post Processing - A New Level of Image Quality in Digital Radiography
Creators: name: Scott, Paul
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Workforce
subject: Trauma
subject: Oedema
subject: Technical aspects
subject: Physics
subject: Experimental investigations
subject: Mammography
subject: Image manipulation / Reconstruction
subject: Digital radiography
subject: Hybrid Imaging
subject: Computer applications
subject: Bones
subject: Physics in Medical Imaging
subject: Prospective
subject: Experimental
subject: Not applicable
subject: Physics in Medical Imaging

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Medical image post processing is an important stage in the imaging chain whose purpose is to maximise the radiologist’s ability to make a diagnostic interpretation. State of the art image processing pipelines employ multiscale algorithms with...
The Debt Ceiling and Obama's Silence
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Political science
subject: FOS: Political science

description: Obama's legislative record will continue to be subject to debate as varying arguments regarding the import of the health care reform bill, questions of whether the initial economic stimulus bill was big enough, for example, can be bandied back and forth. Obama's failure to engage and have an impact on the larger picture national debate is more troubling for many progressives.
Frictionless flow in a binary polariton superfluid
Creators: name: Cancellieri, E.
name: Marchetti, F. M.
name: Szymanska, M. H.
name: Sanvitto, D.
name: Tejedor, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the properties of a binary microcavity polariton superfluid coherently injected by two lasers. The crossover from the supersonic to subsonic regime, where motion is frictionless, is described by evaluating the Bogoliubov spectra. We show that according to the Landau criteria, the coupling between the two components precludes the existence of superfluidity just for one component but not for the other. By analysing the drag force exerted on a defect, we give a recipe to experimentally address the crossover from the supersonic to the subsonic regime.
description: 4+ pages, 4 figures, 4 pages of supplementary material
title: Image quality of CEUS colangiography in patients following orthotopic liver transplantation
Creators: name: Montaldo, Luca
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Multicentre study
subject: Observational
subject: Retrospective
subject: Transplantation
subject: Cholangiography
subject: Ultrasound
subject: Biliary Tract / Gallbladder
subject: GI Tract

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: BACKGROUND AND PURPOSES Clinical scenario Biliary complications (BC) occurs frequently after orthotopic liver transplantation (OLT), with an estimated incidence of 10-25%. Depiction of biliary postoperative anatomy and prompt recognition of biliary...
title: Mehr Ältere auf dem Arbeitsmarkt: Erwerbstätigkeit und Arbeitslosigkeit nehmen zu
Creators: name: Brussig, Martin
name: Wojtkowski, Sascha
Publisher: name: DuEPublico: Duisburg-Essen Publications Online, University of Duisburg-Essen, Germany
Year: 2018

description: Auf einen Blick …
• Die Erwerbstätigkeit im Alter steigt: Im Jahr 2005 stellte für 53,7% der 50- bis 64-Jährigen Arbeit die wichtigste Einkommensquelle dar (1996: 47,1%). Das schon seit Jahren wachsende Rentenzugangsalter in der gesetzlichen Rentenversicherung wird begleitet von einer zunehmenden Alterserwerbstätigkeit.
• Die Zunahme der Erwerbstätigkeit ist nicht auf einzelne Gruppen beschränkt, sondern bei Frauen und Männern, Hoch- und Niedrigqualifizierten sowie in den alten und den neuen Bundesländern zu verzeichnen. Sie ist bei Männern besonders ausgeprägt im Alter von 55 bis 59 Jahren; dies waren in den 1990er Jahren die Lebensjahre der Frühausgliederung. Bei Frauen ist die Alterserwerbstätigkeit in allen Altersgruppen gleichermaßen gestiegen.
• Zwar hat die Erwerbstätigkeit der Älteren besonders bei Geringqualifizierten zugenommen. Dennoch bestehen nach wie vor deutliche Unterschiede in den Erwerbstätigenquoten in Abhängigkeit von der Qualifikation: Sie ist bei Hochqualifizierten doppelt so hoch wie bei Geringqualifizierten.
• Die späteren Renteneintritte werden aber nur zum Teil durch eine höhere Erwerbstätigkeit im Alter realisiert. Ein wachsender Teil der Älteren sind Leistungsbezieher wegen Arbeitslosigkeit. Besonders stark ist die Zunahme der (mindestens) 60-Jährigen Arbeitslosen, die – oftmals als Teil der „Stillen Reserve“ – auf das Erreichen der Altersgrenze warten, bis sie zum Bezug einer abschlagsfreien Altersrente berechtigt sind bzw. durch das Aufschieben des Rentenbeginns die Abschläge mindern.
Bioterrorism
Creators: name: Markenson, David
name: Redlener, Irwin E.
Publisher: name: Columbia University
Year: 2006
Subjects: Pediatrics
Emergency management
Disaster medicine
Bioterrorism

description: Terrorism preparedness is a highly specific component of general emergency preparedness. In addition to the unique pediatric issues involved in general emergency preparedness, terrorism preparedness must consider several additional issues, including the unique vulnerabilities of children to various agents as well as the limited availability of age- and weight-appropriate antidotes and treatments. Although children may respond more rapidly to therapeutic intervention, they are at the same time more susceptible to various agents and conditions and more likely to deteriorate if not carefully monitored. It is well known that children may exhibit different effects of biologic agents.
Here are some examples:
• Smallpox: Lack of immunity in children, whereas some adults who were vaccinated as children may still possess some degree of immunity.
• Trichothecenes: The data show that children maybe more susceptible.
• Melioidosis : Children manifest unique parotitis.
• Anthrax: Recent and older data support the concept that children are less susceptible to the effects of anthrax.
MPEC 2023-H158 : 2023 HY3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 HY3

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
OPERAS  Declaration on the Plan S Implementation Guidance
Creators: name: OPERAS Consortium
Publisher: name: Zenodo
Year: 2019
Subjects: Open Access
Social Sciences and Humanities
Plan S
cOAlition S
Plan S Implementation Guidance
Open Science
SSH

description: On 27 November 2018, cOAlition S has published a guidance document on the implementation of Plan S and has called for feedback from the community on the different topics addressed.

The OPERAS Consortium welcomes the Plan S initiative of “making full and immediate Open Access a reality,” which aligns with its own goal. Yet, the solution to how this goal can be reached globally must take into consideration not only the differences between disciplines, but also between countries, languages, and academic communities, especially regarding their communication practices. The OPERAS members are particularly aware that there is not a single path to Open Access. Regarding Open Access policies, bibliodiversity should be adopted as a prime principle, as proposed by the Jussieu Call for Open science and bibliodiversity.

The following remarks of the OPERAS Consortium result from the Jussieu principles and the will to positively contribute to the implementation of Plan S.
title: How much direct training support do radiology residents need for a standardised interpretation of head CT?
Creators: name: Herves Escobedo, Ignacio
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Diagnostic or prognostic study
subject: Retrospective
subject: Education and training
subject: Education
subject: Diagnostic procedure
subject: CT
subject: Neuroradiology brain
subject: Head and neck
subject: Neuro

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Head computed tomography (CT) constitute one of the most frequent urgent imaging studies reported by radiologists during their on-call shifts and their utilization exponentially increases 1 . It is common that resident physicians to make first...
Realization of reliable solid-state quantum memory for photonic polarization-qubit
Creators: name: Zhou, Zong-Quan
name: Lin, Wei-Bin
name: Yang, Ming
name: Li, Chuan-Feng
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Faithfully storing an unknown quantum light state is essential to advanced quantum communication and distributed quantum computation applications. The required quantum memory must have high fidelity to improve the performance of a quantum network. Here we report the reversible transfer of photonic polarization states into collective atomic excitation in a compact solid-state device. The quantum memory is based on an atomic frequency comb (AFC) in rare-earth ion doped crystals. We obtain up to 0.998 process fidelity for the storage and retrieval process of single-photon-level coherent pulse. This reliable quantum memory is a crucial step toward quantum networks based on solid-state devices.
description: Updated version of PRL paper, Bandwidth:100MHz, Efficiency: 20%@50ns
Propriétés Géométriques de la structure interne du carré (Géométrie pratique)
Creators: name: , Barot
Publisher: name: Zenodo
Year: 2023
Subjects: structure interne du carré
starcut diagram
diagramme étoilé
Géométrie Pratique

description: La structure interne du carré (connue sous divers noms: "diagramme étoilé / starcut diagram", "A de Charlemagne, etc) est l'un des fondements de la Géométrie Pratique. Quelles sont ses propriétés géométriques ? quels tracés (régulateurs) en sont l'illustration? sur quelles sources historiques s'appuyer ? Un article qui cherche à faire le lien entre l'expérience des tracés d'architecture et la recherche universitaire...
description: {"references": ["W. Ueberwasser, 1933. Von Mass und Macht der alten Kunst. Strasbourg et Z\u00fcrich : Heitz & Co, Leipzig; 140 p."]}