cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Discrete Tomography of Icosahedral Model Sets
Creators: name: Huck, Christian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 52C23 (Primary); 11R04, 11R06, 52A10, 52B20, 82D99 (Secondary)

description: The discrete tomography of B-type and F-type icosahedral model sets is investigated, with an emphasis on reconstruction and uniqueness problems. These are motivated by the request of materials science for the unique reconstruction of quasicrystalline structures from a small number of images produced by quantitative high resolution transmission electron microscopy.
description: 21 pages, 3 figures; revised version, figures added
Genre Approach in Indonesian Secondary English Curricula: A Critical Analysis
Creators: name: Prihananto, Novi
Publisher: name: Zenodo
Year: 2014
Subjects: Genre Approach

description: Genre-Based Approach (GBA) has been used for decades for English as a Foreign Language (EFL) teaching in many countries including the ASEAN countries. This approach is used to reach the main goal, which is to educate language learners to be communicatively competent. In Indonesia, this approach was introduced in the 2004 and 2006 National Curricula of English for secondary schools as an innovation with the purpose of improving the quality of the graduates. However, recent reports suggest that the quality has not much improved. This problem may be explained by a variety of reasons. This paper presents the results of a critical examination of these curricula and all the associated documents. The implications of the findings will also be discussed.
Leichosila talamanca Schmidt 2009, sp. n.
Creators: name: Schmidt, Christian
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Leichosila
Leichosila talamanca

description: Leichosila talamanca Schmidt, sp. n. urn:lsid:zoobank.org:act: 7EB77263-5DE4-4AA2-86AE-C02C45C7C0E4 (Figs 1, 3, 5, 6, 8, 9) Type material. Holotype male – “ Costa Rica: P[rovincia]. Cartago [locality actually in San José Province] / R. F. Los Santos / Sendero Los Robles / 9° 33’ 25.51 N 83° 47’ 55.47 W / 2400 m, 21-27 March 2004 / J.B. Sullivan & J.D. Lafontaine;” “Databased for CNC / NOCTUOIDEA # / 13709” [green label]; Barcodes of Life Project / University of Guelph / DNA # Noctuoidea / 13709” [blue label]; HOLOTYPE / Leichosila / talamanca / Schmidt” [red label]; deposited in INBIO. Paratypes – 15 ♁♁, same data as holotype [INBIO, CNC, JBS]; 5 ♁♁, Costa Rica, San Jose, Parc national Chirripo, sentier pédestre vers Mont Chirripo Km 4.7, 2310m, 1 V 2005, leg B. Vincent [white label]; BV 392 to BV 396 [white label]; [BVC]. Diagnosis. Both Leichosila talamanca and L. wagneri can be easily distinguished from all other New World arctiines by the wing pattern and colour, consisting of a grey to whitish grey ground colour with a pattern of dark grey-black, incomplete forewing bands which are ochre yellow centrally (Figs 1, 2). Leichosila talamanca differs from L. wagneri in its larger size, paler grey colouration of the wings, and internally by the more triangular uncus (parallel-sided in L. wagneri, figs 6, 7), lack of a basal process on the costal margin of the valve (Fig.3), and a broadly joined pouch-like diverticulum of the vesica that is pointed and conical in L. wagneri (Figs 3b, 4b). Description. A detailed description is given above in the generic description. Characters specific to L. talamanca are as follows: Male (female unknown). Forewing – length averaging 15.4 mm (14.9-16.1 mm, n = 4); ground colour mouse grey to whitish grey. Hindwing – ground colour mouse grey to whitish grey, with irregular dark-grey subterminal spots, and medial spot. Male genitalia – Uncus triangular in dorsal view; vesica with left diverticulum of two ventro-basal diverticula pouch-shaped and broadly joined to main chamber of vesica (Fig. 3b). Etymology. This species occurs in montane broadleaf forest of the Cordillera de Talamanca, Costa Rica, hence the name. Distribution and biology. Leichosila talamanca is known only from two localities in the Cordillera de Talamanca. At the type locality, the habitat is dominated by mature oaks (D. Lafontaine, pers. comm.) within the Talamancan montane forest at 2400 m elevation. Collection dates are for the last week of March and early May.
description: Published as part of Schmidt, Christian, 2009, A new genus and two new species of arctiine tiger moth (Noctuidae, Arctiinae, Arctiini) from Costa Rica, pp. 89-96 in ZooKeys 9 (9) on pages 94-95, DOI: 10.3897/zookeys.9.151, http://zenodo.org/record/576455
Intention and Willingness to Drive While Drowsy in a Population of University Students in Maryland: An Application of an Extended Theory of Planned Behavior Model
Creators: name: Lee, Clark Johnson
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Public health
subject: Behavioral sciences
subject: Health education
subject: drowsy driving
subject: intention
subject: Prototype Willingness Model
subject: Theory of Planned Behavior
subject: university students
subject: willingness

description: This questionnaire-based descriptive study examined the utility of a model based on constructs from the Theory of Planned Behavior and the Prototype Willingness Model to predict intentions and willingness to engage in drowsy driving behavior in a population of university students in Maryland.  Overall, students who reported more favorable attitudes and subjective norm and greater perceived control and willingness in relation to drowsy driving behavior were more likely to report stronger intentions to engage in drowsy driving.  Furthermore, students who reported more favorable attitudes and subjective norm in relation to drowsy driving behavior were more likely to report greater willingness to engage in drowsy driving.  Perceived behavioral control and willingness were the strongest predictors for intention, while attitudes were a stronger predictor than subjective norm for willingness.  Finally, some statistically significant differences in intention and willingness were observed between male and female students, but not between employed and non-employed students.
Absence of bleeding upon dual antiplatelet therapy in a patient with a immune GPVI deficiency
Creators: name: Inserm, Stéphane Loyau
name: Faille, Dorothée
name: Gautier, Philippe
name: Nurden, Paquita
name: Jandrot-Perrus, Martine
name: Ajzenberg, Nadine
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology
subject: Computational Biology

description: Acquired deficiencies in platelet glycoprotein VI are rare and have not been found associated with other defects. Here we report the case of a 64-year old male patient presenting an immune GPVI deficiency associated to a mutation in the alpha-actinin gene and who has been treated with dual anti platelet therapy without bleeding. Introduction: Glycoprotein (GP) VI, a pluripotent receptor interacting with collagen and fibrin(ogen) is responsible for thrombus formation, growth and stability (1-4). It is co-expressed with the Fc receptor γ (FcRγ) chain (5). GPVI is not critical for haemostasis since subjects with a GPVI deficiency usually present low or even no bleeding tendency (6, 7). Acquired GPVI deficiency due to antibody-induced GPVI depletion is the most frequent finding. At least 10 patients have been described with an acquired GPVI deficiency, most often associated to immune thrombocytopenia, moderate bleeding and impaired collagen-induced platelet aggregation (7). Several mechanisms leading to the GPVI deficiency are proposed including antibody-triggered GPVI internalization and/or shedding of the extracellular domain (8, 9). We report the case of a patient presenting an acquired GPVI deficiency different from those previously described: (i) he is male whereas all previous cases were female, (ii) he is heterozygous for a mutation in α (alpha)-actinin-1 gene and (iii) he was treated with dual antiplatelet therapy with no haemorrhagic manifestation.
Aluminum Nitride Two-Dimensional-Resonant-Rods
Creators: name: Zhao, Xuanyi
name: Colombo, Luca
name: Cassella, Cristian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Applied Physics (physics.app-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: In the last decades, Bulk-Acoustic-Wave (BAW) filters have been essential components of 1G-to-4G radios. These devices rely on the high electromechanical coupling coefficient (kt2~7%), attained by Aluminum Nitride (AlN) Film-Bulk-Acoustic-Resonators (FBARs), to achieve a wideband and low-loss frequency response. As the resonance frequency of FBARs is set by their thickness, the integration of multiple FBARs, to form filters, can only be attained through the adoption of frequency tuning fabrication steps, such as mass loading or trimming. However, as the ability to reliably control these steps significantly decays for thinner FBARs, manufacturing FBARs-based filters, addressing the needs of emerging IoT and 5G high-frequency applications, is becoming more and more challenging. Consequently, there is a quest for new acoustic resonant components, simultaneously exhibiting high kt2 and a lithographic frequency tunability. In this work, a novel class of AlN resonators is presented. These radio-frequency devices, labelled as Two-Dimensional-Resonant-Rods (2DRRs), exploit, for the first time, the unconventional acoustic behavior exhibited by a forest of locally resonant rods, built in the body of a profiled AlN layer that is sandwiched between a bottom un-patterned metal plate and a top metallic grating. 2DRRs exhibit unexplored modal features that make them able to achieve high kt2, a significant lithographic frequency tunability and a relaxed lithographic resolution, while relying on an optimal AlN crystalline orientation. The operation of 2DRRs is discussed, in this work, by means of analytical and finite-element (FE) investigations. The measured performance of the first fabricated 2DRR, showing a kt2 in excess of 7.4%, are also reported.
The Impact of the Five Day Rule on the Practice of School Psychology in Maryland
Creators: name: Hughes, Kevin A
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Education policy
subject: Educational psychology
subject: education policy
subject: IEP meeting
subject: Maryland
subject: school family communication
subject: school psychology

description: In 2010, Maryland passed a law that required parents to have access to all relevant documents at least five business days in advance of an Individualized Education Program (IEP) meeting. This study, a follow-up to a 2011 survey, was conducted to determine whether school psychologists' concerns about the law have merit and whether the law has achieved its intended purpose. Results showed that since the law's implementation, school-based psychologists have experienced, on average, an increase in the amount of time they spend in special education activities and a decrease in time devoted to consultation and direct services. This impact, however, was not felt by all; further analyses of quantitative and qualitative data investigated what characteristics led to the greatest effects. For most respondents there had been no changes in student testing practices, report writing, or IEP team decision-making, while time constraints and work-related stress have worsened.
Scaling properties of the asymmetric exclusion process with long-range hopping
Creators: name: Szavits-Nossan, J.
name: Uzelac, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The exclusion process in which particles may jump any distance l>=1 with the probability that decays as l^-(1+sigma) is studied from coarse-grained equation for density profile in the limit when the lattice spacing goes to zero. For 1
description: 10 pages, 8 figures
The effect of coarticulation on the role of transitions in vowel perception
Creators: name: Ukrainetz, Teresa A.
Publisher: name: University of British Columbia
Year: 2010

description: The present study examines the effect of context on the use of transitions as cues to vowel perception. Thirty V₁CV₂CV₁ utterances were recorded, with V₁ being one of the three vowels /a,i,u/, and V₂ one of ten English vowels (/ i , I, el, E, ae, a,^,Ou,U,u/). After removal of the outer vowels (V₁), three sets of stimuli were created from the CV₂C parts: (1) unmodified controls (CO); (2) V₂ steady-state only (SS); and (3) transitions only (TR). Twenty subjects were asked to identify V₂. Subjects and speaker were matched for dialect and all subjects had some phonetics training. Results showed significant differences across conditions and contexts. Scores for SS stimuli, for all contexts, were as high as for CO stimuli. Performance on the TR stimuli was as good as on the other two conditions for two of the contexts. However, for the TR condition--/a/ context, performance was considerably worse than for any other combination of conditions and contexts. Possible reasons for this are discussed, and the need for testing of other vowel contexts is emphasised. It is concluded that, in some V₁CV₂CV₁ contexts, transitions can provide information about vowel identity on a level equal to steady-state alone, or to the combined information provided by both transitions and steady-states. This effect, however, is not uniform across contexts. For at least one context, transitions alone are not sufficient to cue vowel identity at a level comparable to steady-state or combined information. This lack of uniformity suggests that the role of transitions varies with the type of vowel context present, and conclusions about general usefulness await systematic testing of a number of vowel contexts.
Leichosila wagneri Schmidt 2009, sp. n.
Creators: name: Schmidt, Christian
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Leichosila
Leichosila wagneri

description: Leichosila wagneri Schmidt, sp. n. urn:lsid:zoobank.org:act: 98429FDA-3B9D-44BA-8259-6D83D11CFFBB (Figs. 2, 4, 7) Type material. Holotype male – “C[osta]. RICA: Heredia: / 6 km ENE Vara Blanca, / 1950-2050m, 10°11’N / 84 07’W; 15 ii 2002 / David L. Wagner coll”; “INBio-OET- ALAS / transect / 20/L/01/011”; “Project / ALAS / INB0003216237”; “ HOLOTYPE / Leichosila / wagneri / Schmidt” [red label]; “Genitalia / CNC slide # / 14541”; deposited in INBIO. Diagnosis. Distinguished from L. talamanca by the smaller size and darker colouration of L. wagneri, and by the genitalic characters given under the diagnosis for L. talamanca. Description. A detailed description is given above in the genus description. Characters specific to L. wagneri are as follows: Male (female unknown). Forewing – length 13.4 (n = 1); ground colour dark grey. Hindwing – ground colour dark grey, with indistinct, irregular dark grey subterminal spots and medial spot. Male genitalia – Uncus parallelsided basally, then tapering apically, i. e. bottle-shaped in dorsal profile (Fig. 7); vesica with left diverticulum of two ventro-basal diverticula conical and pointed (Fig. 4b). Etymology. This species is named after David L. Wagner, who collected the type specimen, and whose studies continue to vastly improve our knowledge of the larval biology of North American Lepidoptera. Distribution and biology. Leichosila wagneri is known only from the type specimen, collected in high elevation forest (1950-2050 m) on Volcán Barva (Cordillera Central) in mid February.
description: Published as part of Schmidt, Christian, 2009, A new genus and two new species of arctiine tiger moth (Noctuidae, Arctiinae, Arctiini) from Costa Rica, pp. 89-96 in ZooKeys 9 (9) on page 95, DOI: 10.3897/zookeys.9.151, http://zenodo.org/record/576455
Potential contrasting effects of platelets on the migration and invasion of sarcomas versus carcinomas
Creators: name: Yoon, Jinsoo
name: Parish, Christopher R.
name: Blackburn, Anneke C.
name: Coupland, Lucy A.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: The ability of platelets to promote carcinoma and melanoma progression has been thoroughly studied and occurs in numerous ways. In contrast, the effect of platelets on sarcomas, tumors arising from mesenchymal cells, has received very little attention. This study was undertaken to simultaneously compare the effects of platelets on murine and human sarcomas and carcinomas. In contrast to their effect on carcinomas, platelets inhibited the invasion of some murine- and all human sarcomas tested in vitro. Further invasion studies with TGFβ treatment only partially recapitulated the results seen with whole platelets. In a spontaneous tumor growth and lung metastasis model, platelets promoted 4T1 mammary carcinoma metastasis but not MCA-1 fibrosarcoma metastasis. Gene expression analysis of the platelet-promoted MDA-MB-231 breast carcinoma, and the platelet-inhibited HT1080 fibrosarcoma cell lines revealed that exposure of MDA-MB-231 to platelets, resulted in upregulation of oncogenes and EMT-associated genes whereas in HT1080 a tumor-suppressor gene was significantly upregulated. Thus, this study has revealed a potential diametrically opposing effect of platelets on mesenchymal and epithelial cancers, a finding that warrants further investigation.
Quantum efficiency, purity and stability of a tunable, narrowband microwave single-photon source
Creators: name: Lu, Yong
name: Bengtsson, Andreas
name: Burnett, Jonathan J.
name: Suri, Baladitya
name: Sathyamoorthy, Sankar Raman
name: Nilsson, Hampus Renberg
name: Scigliuzzo, Marco
name: Bylander, Jonas
name: Johansson, Göran
name: Delsing, Per
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate an on-demand source of microwave single photons with 71--99\% intrinsic quantum efficiency. The source is narrowband (300\unite{kHz}) and tuneable over a 600 MHz range around 5.2 GHz. Such a device is an important element in numerous quantum technologies and applications. The device consists of a superconducting transmon qubit coupled to the open end of a transmission line. A $π$-pulse excites the qubit, which subsequently rapidly emits a single photon into the transmission line. A cancellation pulse then suppresses the reflected $π$-pulse by 33.5 dB, resulting in 0.005 photons leaking into the photon emission channel. We verify strong antibunching of the emitted photon field and determine its Wigner function. Non-radiative decay and $1/f$ flux noise both affect the quantum efficiency. We also study the device stability over time and identify uncorrelated discrete jumps of the pure dephasing rate at different qubit frequencies on a time scale of hours, which we attribute to independent two-level system defects in the device dielectrics, dispersively coupled to the qubit.
Effect of differently coated silver nanoparticles on hemostasis
Creators: name: Milić, Marija
name: Vuković, Barbara
name: Barbir, Rinea
name: Pem, Barbara
name: Milić, Mirta
name: Šerić, Vatroslav
name: Frőhlich, Eleonore
name: Vrček, Ivana Vinković
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: Hematology

description: With the emergence of nano-enabled medical devices (MDs) for the use in human medicine, ensuring their safety becomes of crucial importance. Hemocompatibility is one of the major criteria for approval of all MDs in contact with blood (e.g. vascular grafts, stents, or valves). Silver nanoparticles (AgNPs) are among the most used nanomaterials for MDs due to their biocidal activity; however, detailed knowledge on their hemostatic effects is still lacking. This study aimed to evaluate comprehensively AgNPs effects on hemostasis in human blood by exploiting combination of affordable and clinically relevant techniques. Differently stabilized AgNPs were prepared using sodium bis(2-ethylhexyl)sulphosuccinate (AOT), polyvinylpyrrolidone (PVP), poly-L-lysine (PLL), and bovine serum albumin (BSA) as coating agents. They were tested for hemolytic activity, induction of platelet aggregation, plasmatic coagulation, thrombin generation, and hemostasis in whole blood. All AgNPs were found to cause dose-dependent hemolysis. The BSA-, AOT-, and PVP-coated AgNPs delayed plasmatic coagulation, while only PLL-AgNPs inhibited plasmatic coagulation, induced platelet activation, and interfered with hemostasis by delaying clotting time and decreasing clot firmness in whole blood. Obtained results demonstrate that a combination of different techniques should be used for reliable assessment of AgNPs hemostatic effects highlighting the need for a standardized approach in sampling and experimental protocols.
Transport of a quantum degenerate heteronuclear Bose-Fermi mixture in a harmonic trap
Creators: name: Klempt, C.
name: Henninger, T.
name: Topic, O.
name: Will, J.
name: Falke, St.
name: Ertmer, W.
name: Arlt, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report on the transport of mixed quantum degenerate gases of bosonic 87Rb and fermionic 40K in a harmonic potential provided by a modified QUIC trap. The samples are transported over a distance of 6 mm to the geometric center of the anti-Helmholtz coils of the QUIC trap. This transport mechanism was implemented by a small modification of the QUIC trap and is free of losses and heating. It allows all experiments using QUIC traps to use the highly homogeneous magnetic fields that can be created in the center of a QUIC trap and improves the optical access to the atoms, e.g., for experiments with optical lattices. This mechanism may be cascaded to cover even larger distances for applications with quantum degenerate samples.
description: 7 pages, 8 figures
Using the whole optical spectrum to classify activity in S0 galaxies
Creators: name: Tous, José Luis
Publisher: name: Zenodo
Year: 2024
Subjects: subject: Active Galaxies
subject: Elliptical and Lenticular Galaxies
subject: Seyfert Galaxies
subject: Statistics
subject: FOS: Mathematics
subject: Star Formation

description: The BPT diagram is a well-known emission-line classifier extensively used for identifying the dominant ionization source in galaxies. However, its reliance on the fluxes contained within specific emission lines limits its applicability, particularly in the study of early type galaxies, which are systematically excluded from these classifications. We present the ΔPS-PC3 diagram, a new and inclusive activity classifier that does not suffer from this limitation, as it harnesses the information contained within the entire optical spectrum. The classification is based on the projections of the spectra of S0 galaxies onto their first three principal components. The vertical dimension of our classifier condenses the information of the first two principal components into a single parameter, ΔPS, aligning with the equivalent width of the Hα line and therefore sorts galaxies according to their global activity status, from active to fully passive. On the horizontal axis, the third principal component allows to disentangle ionization by star formation activity from that related to nuclear accretion processes. The segregation power of this latter component arises from the fact that it reflects the variance associated with the emission lines used in the BPT-NII diagram. While in this work we demonstrate the effectiveness of our taxonomic framework in segregating S0 galaxies by their activity, its extension to the entire Hubble sequence should be a natural step.
Supersymmetry, holonomy and Kundt spacetimes
Creators: name: Brannlund, J
name: Coley, A
name: Hervik, S
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Supersymmetric solutions of supergravity theories, and consequently metrics with special holonomy, have played an important role in the development of string theory. We describe how a Lorentzian manifold is either completely reducible, and thus essentially known, or not completely reducible so that there exists a degenerate holonomy invariant lightlike subspace and consequently admits a covariantly constant or a recurrent null vector and belongs to the higher-dimensional Kundt class of spacetimes. These Kundt spacetimes (which contain the vanishing and constant curvature invariant spacetimes as special cases) are genuinely Lorentzian and have a number of interesting and unusual properties, which may lead to novel and fundamental physics.
description: 14 pages. Accepted by Class. Quant. Grav. Some misprints fixed
Cooling a spherical nematic shell
Creators: name: Napoli, Gaetano
name: Vergori, Luigi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Within the framework of Landau-de Gennes theory for nematic liquid crystals, we study the temperature-induced isotropic-nematic phase transition on a spherical shell. Below a critical temperature, a thin layer of nematic coating a microscopic spherical particle exhibits non-uniform textures due to the geometrical frustration. We find the exact value of critical threshold for the temperature and determine exactly the nematic textures at the transition by means of a weakly nonlinear analysis. The critical temperature is affected by the extrinsic curvature of the sphere, and the nematic alignment is consistent with the Poincaré-Hopf index theorem and experimental observations. The stability analysis of the bifurcate textures at the isotropic-nematic transition highlight that only the tetrahedral configuration is stable.
A self-supervised learning strategy for postoperative brain cavity segmentation simulating resections
Creators: name: Pérez-García, Fernando
name: Dorent, Reuben
name: Rizzi, Michele
name: Cardinale, Francesco
name: Frazzini, Valerio
name: Navarro, Vincent
name: Essert, Caroline
name: Ollivier, Irène
name: Vercauteren, Tom
name: Sparks, Rachel
name: Duncan, John S.
name: Ourselin, Sébastien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Accurate segmentation of brain resection cavities (RCs) aids in postoperative analysis and determining follow-up treatment. Convolutional neural networks (CNNs) are the state-of-the-art image segmentation technique, but require large annotated datasets for training. Annotation of 3D medical images is time-consuming, requires highly-trained raters, and may suffer from high inter-rater variability. Self-supervised learning strategies can leverage unlabeled data for training. We developed an algorithm to simulate resections from preoperative magnetic resonance images (MRIs). We performed self-supervised training of a 3D CNN for RC segmentation using our simulation method. We curated EPISURG, a dataset comprising 430 postoperative and 268 preoperative MRIs from 430 refractory epilepsy patients who underwent resective neurosurgery. We fine-tuned our model on three small annotated datasets from different institutions and on the annotated images in EPISURG, comprising 20, 33, 19 and 133 subjects. The model trained on data with simulated resections obtained median (interquartile range) Dice score coefficients (DSCs) of 81.7 (16.4), 82.4 (36.4), 74.9 (24.2) and 80.5 (18.7) for each of the four datasets. After fine-tuning, DSCs were 89.2 (13.3), 84.1 (19.8), 80.2 (20.1) and 85.2 (10.8). For comparison, inter-rater agreement between human annotators from our previous study was 84.0 (9.9). We present a self-supervised learning strategy for 3D CNNs using simulated RCs to accurately segment real RCs on postoperative MRI. Our method generalizes well to data from different institutions, pathologies and modalities. Source code, segmentation models and the EPISURG dataset are available at https://github.com/fepegar/ressegijcars .
description: To be published in the International Journal of Computer Assisted Radiology and Surgery (IJCARS) - Special issue MICCAI 2020
A Generalization of Slavnov-Extended Non-Commutative Gauge Theories
Creators: name: Blaschke, Daniel N.
name: Hohenegger, Stefan
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a non-commutative U(1) gauge theory in 4 dimensions with a modified Slavnov term which looks similar to the 3-dimensional BF model. In choosing a space-like axial gauge fixing we find a new vector supersymmetry which is used to show that the model is free of UV/IR mixing problems, just as in the previously discussed model in arXiv:hep-th/0604154. Finally, we present generalizations of our proposed model to higher dimensions.
description: 25 pages, no figures; v2 minor corrections
Novel ANN method for solving ordinary and fractional Black-Scholes equation
Creators: name: Bajalan, Saeed
name: Bajalan, Nastaran
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The main aim of this study is to introduce a 2-layered Artificial Neural Network (ANN) for solving the Black-Scholes partial differential equation (PDE) of either fractional or ordinary orders. Firstly, a discretization method is employed to change the model into a sequence of Ordinary Differential Equations (ODE). Then each of these ODEs is solved with the aid of an ANN. Adam optimization is employed as the learning paradigm since it can add the foreknowledge of slowing down the process of optimization when getting close to the actual optimum solution. The model also takes advantage of fine tuning for speeding up the process and domain mapping to confront infinite domain issue. Finally, the accuracy, speed, and convergence of the method for solving several types of Black-Scholes model are reported.
On the origin of families of quarks and leptons - predictions for four families
Creators: name: Bregar, G.
name: Breskvar, M.
name: Lukman, D.
name: Borstnik, N. S. Mankoc
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The approach unifying all the internal degrees of freedom--proposed by one of us--is offering a new way of understanding families of quarks and leptons: A part of the starting Lagrange density in d(=1+13), which includes two kinds of spin connection fields--the gauge fields of two types of Clifford algebra objects--transforms the right handed quarks and leptons into the left handed ones manifesting in d=1+3 the Yukawa couplings of the Standard model. We study the influence of the way of breaking symmetries on the Yukawa couplings and estimate properties of the fourth family--the quark masses and the mixing matrix, investigating the possibility that the fourth family of quarks and leptons appears at low enough energies to be observable with the new generation of accelerators.
description: 31 pages,revtex
Breathing solitons induced by collision in dipolar Bose-Einstein condensates
Creators: name: Gao, Peng
name: Li, Xin
name: Yang, Zhan-Ying
name: Yang, Wen-Li
name: Yi, Su
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We numerically study the breathing dynamics induced by collision between bright solitons in the one-dimensional Bose-Einstein condensates with strong dipole-dipole interaction. This breathing phenomenon is closely related to the after-collision short-lived attraction of solitons induced by the dipolar effect. The initial phase difference of solitons leads to the asymmetric dynamics after collision, which is manifested on their different breathing amplitude, breathing frequency, and atom number. We clarify that the asymmetry of breathing frequency is directly induced by the asymmetric atom number, rather than initial phase difference. Moreover, the collision between breathing solitons can produce new after-two-collision breathing solitons, whose breathing amplitude can be adjusted and reach the maximum (or minimum) when the peak-peak (or dip-dip) collision happens.
description: 7 pages, 6 figures
Two problems in mathematical physics
Creators: name: De Amorim, Érik Fernando
Publisher: name: No Publisher Supplied
Year: 2021

description: In chapter 1, a rigorous proof is presented of the existence of the static, spherically symmetric spacetime that is the solution of the Einstein field equations coupled with an electric field obeying the equations of electromagnetism of Bopp-Landé-Thomas-Podolsky for a static point charge. It is shown that the electric field energy is finite, just as the case is for this theory on a background flat spacetime. The argument proves the existence of a 2-parameter family of solutions in the regime of large radial variable and of a 1-parameter family when this variable is small, by means of a new technique for estimating the radius of convergence of a power series whose coefficients are defined by a polynomial recursion. The existence of the intersection of the families of solutions from these two regimes is established through carefully restricting the allowable ranges of their parameters so that the Poincaré-Miranda theorem can be applied.In chapter 2, a generalization of the system of so-called Jacobi coordinate transformations for classical and quantum many-body problems is developed, suitable for the study of questions involving the center-of-mass of the system when the interaction between the bodies enjoys symmetry properties. It is applied to the study of asymptotic ground-state properties of a quantum Hamiltonian that models an atom with N bosonic electrons without the Born-Oppenheimer approximation. The conjectured Hartree limit of N going to infinity is shown to supply a rigorous upper bound to the ground state energy.
Finite temperature expectation values of boundary operators
Creators: name: Takacs, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A conjecture is presented for the thermal one-point function of boundary operators in integrable boundary quantum field theories in terms of form factors. It is expected to have applications in studying boundary critical phenomena and boundary flows, which are relevant in the context of condensed matter and string theory. The conjectured formula is verified by a low-temperature expansion developed using finite size techniques, which can also be used to evaluate higher point functions both in the bulk and on the boundary.
description: 26 pages, 4 eps figures, latex2e file. v2: A formula added, some typos are corrected
Direct Mediation and a Visible Metastable Supersymmetry Breaking Sector
Creators: name: Keren-Zur, Boaz
name: Mazzucato, Luca
name: Oz, Yaron
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze an R-symmetry breaking deformation of the ISS model for a direct mediation of supersymmetry breaking from a metastable vacuum. The model is weakly coupled and calculable. The LSP gravitino is light (m_{3/2}<16 eV) and the MSSM spectrum is natural with a light Higgs. The supersymmetry breaking sector, which is usually hidden, is observable (m~1 TeV) and may be a candidate for cold dark matter. We discuss its production and signature at LHC. We propose a UV completion of the model in terms of a duality cascade.
description: 28 pages, 19 figures; reference added, improved section 7; modified decay diagrams, figures and related paragraphs
CoLAB, un laboratoire de collaboration multi-acteurs pour l’innovation responsable au service de l’agriculture et de l’alimentation durable
Creators: name: SOUARE, Mamba
name: OUMOURI, Djamila
Publisher: name: Journal of Interdisciplinary Methodologies and Issues in Science - JIMIS-CNRS-Episciences - ESPACE - Agorantic
Year: 2021
Subjects: collaboration
multi-acteur
Design Thinking
facilitation
objectifs de développement durable
innovation
Afrique
entrepreneuriat
co-création
sécurité alimentaire
agroalimentaire

description: Alors que l’agriculture représente près de 15% du PIB total en Afrique subsaharienne et que le secteur agricole constitue le premier pourvoyeur d’emploi, ce dernier ne parvient pourtant pas à relever le défi de la sécurité alimentaire. Or, des initiatives locales pour répondre à ces défis ne manquent pas, mais ces dernières peinent à se pérenniser et à passer à l'échelle. La création de synergies et une mise en commun des savoirs apparaissent comme des moyens pour l’atteinte des Objectifs de Développement Durable 2 (Faim Zéro) et 12 (Consommation et Production Durable). Cet article revient sur le programme CoLAB conçu pour accompagner l’émergence de collaborations pour la résolution des enjeux de sécurité alimentaire en Afrique de l’Ouest.
Signal amplification and control in optical cavities with off-axis feedback
Creators: name: Zambrini, Roberta
name: Papoff, Francesco
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We consider a large class of optical cavities and gain media with an off-axis external feedback which introduces a two-point nonlocality. This nonlocality moves the lasing threshold and opens large windows of control parameters where weak light spots can be strongly amplified while the background radiation remains very low. Furthermore, transverse phase and group velocities of a signal can be independently tuned and this enables to steer it non mechanically, to control its spatial chirping and to split it into two counter-propagating ones.
description: 4 pages, 4 pictures
title: Rapport de voyage, Angkor (1899) : Ligne de Méditerranée circulaire Nord-Sud, 1932, voyage n°22
Creators: name: Angelvin, César
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023
Subjects: subject: Compagnie des Messageries Maritimes
subject: Transports maritimes - Histoire
subject: Marine marchande
subject: Journaux de bord

description: Chapitrage : Rapport du commandant - Rapport de mer
description: Source: French Lines & Compagnies, 1997 002 3939-14
description: Coverage: 1932-05-10/1932-06-02
Interplay between Zhang-Rice singlets and high-spin states in a model for doped NiO$_2$ planes
Creators: name: Plienbumrung, Tharathep
name: Daghofer, Maria
name: Oleś, Andrzej M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superconductivity found in doped NdNiO$_2$ is puzzling as two local symmetries of doped NiO$_2$ layers compete, with presumably far-reaching implications for the involved mechanism: a cuprate-like regime with Zhang-Rice singlets {\cblue is replaced by local triplet states at realistic values of charge-transfer energy, which would suggest a rather different superconductivity scenario from high-$T_c$ cuprates}. We address this competition by investigating Ni$_4$O$_8$ clusters with periodic boundary conditions in the parameter range relevant for the superconducting nickelates. With increasing value of charge-transfer energy we observe upon hole doping the expected crossover from the cuprate regime dominated by Zhang-Rice singlets to the local triplet states. We find that smaller charge-transfer energy $Δ$ is able to drive this change of the ground state character when realistic values for nickel-oxygen repulsion $U_{dp}$ are taken into account. For large values of the charge-transfer energy, oxygen orbitals are less important than in superconducting cuprates as their spectral weight is found only at rather high excitation energies. However, a second Ni($3d$) orbital can easily become relevant, with either the $xy$ or the $3z^2-r^2$ orbitals contributing in addition to the $x^2-y^2$ orbital {\cblue to the formation of triplet states. In addition,} our result that $U_{dp}$ (acting between Ni and O) favors onsite triplets implies that correlation effects beyond purely onsite interactions should be taken into account when obtaining effective two-band models.
description: 12 pages, 11 figures, under review
Relationship between Somatic Cell Counts, Mastitis and Milk Quality in Ettawah Grade and PESA Goats
Creators: name: Molefe PETLANE, Ronny Rachman NOOR
Publisher: name: Walailak University
Year: 2013
Subjects: Somatic cell counts, mastitis, milk quality, PE, PESA

description: 6, 10, Walailak Journal of Science and Technology
Logarithmic components of the vacant set for random walk on a discrete torus
Creators: name: Windisch, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K35; 60G50; 82C41; 05C80

description: This work continues the investigation, initiated in a recent work by Benjamini and Sznitman, of percolative properties of the set of points not visited by a random walk on the discrete torus (Z/NZ)^d up to time uN^d in high dimension d. If u>0 is chosen sufficiently small it has been shown that with overwhelming probability this vacant set contains a unique giant component containing segments of length c_0 log N for some constant c_0 > 0, and this component occupies a non-degenerate fraction of the total volume as N tends to infinity. Within the same setup, we investigate here the complement of the giant component in the vacant set and show that some components consist of segments of logarithmic size. In particular, this shows that the choice of a sufficiently large constant c_0 > 0 is crucial in the definition of the giant component.
description: 17 pages, accepted for publication in the Electronic Journal of Probability
Measurement of D0-D0bar mixing from a time-dependent amplitude analysis of D0 -> K+ pi- pi0 decays
Creators: name: The BABAR Collaboration
name: Aubert, B
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present evidence of $D^0$-$\bar{D^0}$ mixing using a time-dependent amplitude analysis of the decay D0->K+pi-pi0 in a data sample of 384 fb^-1 collected with the BaBar detector at the PEP-II e+e- collider at SLAC. Assuming CP conservation, we measure the mixing parameters x'_{Kpipi0} = [2.61^{+0.57}_{-0.68} (stat.) +- 0.39 (syst.)]%, y'_{Kpipi0} = [-0.06 ^{+0.55}_{-0.64} (stat.) +- 0.34 (syst.)]%. The confidence level for the data to be consistent with the no-mixing hypothesis is 0.1%, including systematic uncertainties. This result is inconsistent with the no-mixing hypothesis with a significance of 3.2 standard deviations. We find no evidence of CP violation in mixing.
description: 7 pages, 8 postscript figures, submitted to PRL
PKS1932-46: a radio source in an interacting group?
Creators: name: Inskip, K. J.
name: Tadhunter, C. N.
name: Dicken, D.
name: Holt, J.
name: Villar-Martin, M.
name: Morganti, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a multiwavelength study of the z=0.23 radio source PKS1932-46. VIMOS IFU spectroscopy is used to study the morphology, kinematics and ionisation state of the EELR surrounding this source, and also a companion galaxy at a similar redshift. Near- and far-IR imaging observations obtained using the NTT and SPITZER are used to analyse the underlying galaxy morphologies and the nature of the AGN. The host galaxy is identified as an ~M* elliptical. Combining Spitzer mid-IR with X-ray, optical and near-IR imaging observations of this source, we conclude that its AGN is underluminous for a radio source of this type, despite its status as a BLRG. However, given its relatively large [OIII] luminosity it is likely that the AGN was substantially more luminous in the recent past (<10^4 years ago). The EELR is remarkably extensive and complex, reminiscent of the systems observed around sources at higher redshifts/radio powers, and the gas is predominantly ionised by a mixture of AGN photoionisation and emission from young stars. We confirm the presence of a series of star-forming knots extending N-S from the host galaxy, with more prodigious star formation occuring in the merging companion galaxy to the northeast, which has sufficient luminosity at mid- to far-IR wavelengths to be classified as a LIRG. The most plausible explanation of our observations is that PKS1932-46 is a member of an interacting galaxy group, and that the impressive EELR is populated by star-forming, tidal debris. We suggest that the AGN itself may currently be fuelled by material associated either with the current interaction, or with a previous merger event. Surprisingly, it is the companion object, rather than the radio source host galaxy, which is undergoing the bulk of the star formation activity within the group.
description: 15 pages, 14 figures (compressed for astro-ph, 1 colour). Accepted for publication in MNRAS. Abstract abridged