cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Automated femur segmentation from computed tomography images using a deep neural network
Creators: name: Bjornsson, P. A.
name: Helgason, B.
name: Palsson, H.
name: Sigurdsson, S.
name: Gudnason, V.
name: Ellingsen, L. M.
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: Osteoporosis is a common bone disease that occurs when the creation of new bone does not keep up with the loss of old bone, resulting in increased fracture risk. Adults over the age of 50 are especially at risk and see their quality of life diminished because of limited mobility, which can lead to isolation and depression. We are developing a robust screening method capable of identifying individuals predisposed to hip fracture to address this clinical challenge. The method uses finite element analysis and relies on segmented computed tomography (CT) images of the hip. Presently, the segmentation of the proximal femur requires manual input, which is a tedious task, prone to human error, and severely limits the practicality of the method in a clinical context. Here we present a novel approach for segmenting the proximal femur that uses a deep convolutional neural network to produce accurate, automated, robust, and fast segmentations of the femur from CT scans. The network architecture is based on the renowned u-net, which consists of a downsampling path to extract increasingly complex features of the input patch and an upsampling path to convert the acquired low resolution image into a high resolution one. Skipped connections allow us to recover critical spatial information lost during downsampling. The model was trained on 30 manually segmented CT images and was evaluated on 200 ground truth manual segmentations. Our method delivers a mean Dice similarity coefficient (DSC) and 95th percentile Hausdorff distance (HD95) of 0.990 and 0.981 mm, respectively.
An omega-Power of a Finitary Language Which is a Borel Set of Infinite Rank
Creators: name: Finkel, Olivier
Publisher: name: arXiv
Year: 2008
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Omega-powers of finitary languages are omega languages in the form V^omega, where V is a finitary language over a finite alphabet X. Since the set of infinite words over X can be equipped with the usual Cantor topology, the question of the topological complexity of omega-powers naturally arises and has been raised by Niwinski, by Simonnet, and by Staiger. It has been recently proved that for each integer n > 0, there exist some omega-powers of context free languages which are Pi^0_n-complete Borel sets, and that there exists a context free language L such that L^omega is analytic but not Borel. But the question was still open whether there exists a finitary language V such that V^omega is a Borel set of infinite rank. We answer this question in this paper, giving an example of a finitary language whose omega-power is Borel of infinite rank.
2008 Ema Llona Yareja recordings
Creators: name: Llona Yareja, Ema
name: Hansen, Cynthia Anderson
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: iqu

description: WAV audio recordings of 5 texts recorded by Cynthia Anderson Hansen during her independent dissertation field research. All are in Iquito followed by Loretano Spanish [unless noted]:
1. C05: Nuúkiika tuumiíku-jina: El día domingo: Sundays
(Iquito: 2m40sec; total: 6m10sec)
2. C11: Jɨɨ́taaraata kana-kaakɨ́ɨja amɨ́yaakitaárikɨ kanáaja: Cómo nos hacía andar mi padre: How my father made us behave [Iquito only]
(Iquito: 2m00sec; total: 2m02sec)
3. Jɨɨ́taaraata kií-kaakɨ́ɨja juntaásiiyaárikɨ mɨtiija naakí: Cómo mi papá juntaba huevos de taricaya: How my father gathered ‘taricaya’ turtle eggs [Iquito only]
(Iquito: 3m44sec; total: 3m44sec)
4. NNC: Kiaa nuúkiika niaatíija kuúkimaa: Cuando eres madre: When you are a mother [Iquito only]
(Iquito: 1m00sec; total: 1m07sec)
5. SIC: Jɨɨ́tikari taá suwáani kiaa-niíyaaka: Cuando tu marido es bueno: When you have a good husband [Iquito only]
(Iquito: 1m00sec; total: 1m00sec)
Mono-enriched stars and Galactic chemical evolution -- Possible biases in observations and theory
Creators: name: Hansen, Camilla Juul
name: Koch, Andreas
name: Mashonkina, Lyudmila
name: Magg, Mattis
name: Bergemann, Maria
name: Sitnova, Tatyana
name: Gallagher, Andrew J.
name: Ilyin, Ilya
name: Caffau, Elisabetta
name: Zhang, Huawei W.
name: Strassmeier, Klauss G.
name: Klessen, Ralf S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A long sought after goal using chemical abundance patterns derived from metal-poor stars is to understand the Galactic chemical evolution (GCE) and to pin down the nature of the first stars (Pop III). Here, we use a sample of 14 metal-poor stars observed with the high-resolution spectrograph PEPSI at the LBT to derive abundances of 32 elements (34 including limits). We present well-sampled abundance patterns for all stars obtained using local thermodynamic equilibrium (LTE) radiative transfer codes and 1D hydrostatic model atmospheres. It is currently well known that the assumptions of 1D and LTE may hide several issues, thereby introducing biases in our interpretation as to the nature of the first stars and the GCE. Hence, we use non-LTE (NLTE) and correct the abundances using 3D model atmospheres to present a physically more reliable pattern. In order to infer the nature of the first stars, we compare unevolved, cool stars, enriched by a single event (`mono-enriched'), with a set of yield predictions to pin down the mass and energy of the Pop III progenitor. To date, only few bona fide second generation mono-enriched stars are known. A simple x^2-fit may bias our inferred mass and energy just as much as the simple 1D LTE abundance pattern, and we thus carried out our study with an improved fitting technique considering dilution and mixing. Our sample presents Carbon Enhanced Metal-Poor (CEMP) stars, some of which are promising true second generation (mono-enriched) stars. The unevolved, dwarf BD+09_2190 shows a mono-enriched signature which, combined with kinematical data, indicates that it moves in the outer halo and likely has been accreted onto the Milky Way early on. The Pop III progenitor was likely of 25.5M and 0.6 10^51erg (foe)/19.2M and 1.5foe in LTE/NLTE. Finally, we explore the predominant donor and formation site of the rapid and slow neutron-capture elements. Abridged
description: 22 pages, 16 figures, online material. Accepted for publication in A&A
Processing of body-induced thermal signatures for physical distancing and temperature screening
Creators: name: Savazzi, Stefano
name: Rampa, Vittorio
name: Costa, Leonardo
name: Kianoush, Sanaz
name: Tolochenko, Denis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Massive and unobtrusive screening of people in public environments is becoming a critical task to guarantee safety in congested shared spaces, as well as to support early non-invasive diagnosis and response to disease outbreaks. Among various sensors and Internet of Things (IoT) technologies, thermal vision systems, based on low-cost infrared (IR) array sensors, allow to track thermal signatures induced by moving people. Unlike contact tracing applications that exploit short-range communications, IR-based sensing systems are passive, as they do not need the cooperation of the subject(s) and do not pose a threat to user privacy. The paper develops a signal processing framework that enables the joint analysis of subject mobility while automating the temperature screening process. The system consists of IR-based sensors that monitor both subject motions and health status through temperature measurements. Sensors are networked via wireless IoT tools and are deployed according to different configurations (wall- or ceiling-mounted setups). The system targets the joint passive localization of subjects by tracking their mutual distance and direction of arrival, in addition to the detection of anomalous body temperatures for subjects close to the IR sensors. Focusing on Bayesian methods, the paper also addresses best practices and relevant implementation challenges using on field measurements. The proposed framework is privacy-neutral, it can be employed in public and private services for healthcare, smart living and shared spaces scenarios without any privacy concerns. Different configurations are also considered targeting both industrial, smart space and living environments.
description: This work is in part funded by Regione Lombardia POR-FESR 2014-2020 Innodriver framework programme. The paper has been accepted for publication in the IEEE Sensors Journal. The current arXiv contains an additional Appendix that describes the Envisense system configuration
Comparing Eta Carinae with the Red Rectangle
Creators: name: Soker, Noam
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I compare the structures of the bipolar nebulae around the massive binary system Eta Carinae and around the low mass binary system HD 44179. While Eta Carinae is on its way to become a supernova, the Red Rectangle is on its way to form a planetary nebula. Despite the two orders of magnitude difference in mass, these two systems show several similarities, both in the properties of the stellar binary systems and the nebulae. From this comparison and further analysis of the accretion process during the 20 years Great Eruption of Eta Carinae, I strengthen the binary model for the formation of its bipolar nebula--the Homunculus. In the binary model a large fraction of the mass lost by the primary star during the Great Eruption was transferred to the secondary star (the companion); An accretion disk was formed around the companion, and the companion launched two opposite jets. I show that the gravitational energy of the mass accreted onto the secondary star during the Great Eruption can account for the extra energy of the Great Eruption, both the radiated energy and the kinetic energy in the Homunculus. I also conclude that neither the proximity of the primary star in Eta Car to the Eddington luminosity, nor the rotation of the primary star are related directly to the shaping of the Homunculus. I speculate that the Great Eruption of Eta Carinae was triggered by disturbance in the outer boundary of the convective region, most likely by magnetic activity, that expelled the outer radiative zone.
description: ApJ, in press (small changes from original version)
Accelerating computational modeling and design of high-entropy alloys
Creators: name: Singh, Rahul
name: Sharma, Aayush
name: Singh, Prashant
name: Balasubramanian, Ganesh
name: Johnson, Duane D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: With huge design spaces for unique chemical and mechanical properties, we remove a roadblock to computational design of {high-entropy alloys} using a metaheuristic hybrid Cuckoo Search (CS) for "on-the-fly" construction of Super-Cell Random APproximates (SCRAPs) having targeted atomic site and pair probabilities on arbitrary crystal lattices. Our hybrid-CS schema overcomes large, discrete combinatorial optimization by ultrafast global solutions that scale linearly in system size and strongly in parallel, e.g. a 4-element, 128-atom model [a $10^{73+}$ space] is found in seconds -- a reduction of 13,000+ over current strategies. With model-generation eliminated as a bottleneck, computational alloy design can be performed that is currently impossible or impractical. We showcase the method for real alloys with varying short-range order. Being problem-agnostic, our hybrid-CS schema offers numerous applications in diverse fields.
description: 10 pages, 6 figures, submitted to Nature Computational Science
Performance and Cost Effectiveness of Pavement Edge Drains
Creators: name: Fleckenstein, L. John
name: Allen, David L.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1997
Subjects: subject: Transportation Engineering

description: It is apparent from research conducted under this study that edge drains increase subgrade strength through the removal of water. It is also apparent in most cases that the edge drains increase pavement life by approximately seven years. Current cost benefit analysis indicates that edge drains can provide a cost savings of approximately $200,000 dollars a mile over the life of the pavement. Research also indicates that if edge drains are not properly installed and maintained they can doe more damage then good. It is evident that edge drains should be inspected with a pipeline camera prior to final acceptance and prior to rehabilitation.
Chromodynamic Fluctuations in Quark-Gluon Plasma
Creators: name: Mrowczynski, Stanislaw
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Fluctuations of chromodynamic fields in the collisionless quark-gluon plasma are found as a solution of the initial value linearized problem. The plasma initial state is on average colorless, stationary and homogeneous. When the state is stable, the initial fluctuations decay exponentially and in the long-time limit a stationary spectrum of fluctuations is established. For the equilibrium plasma it reproduces the spectrum which is provided by the fluctuation-dissipation relation. Fluctuations in the unstable plasma, where the memory of initial fluctuations is not lost, are also discussed.
description: 19 pages, numerous but minor corrections, to appear in Phys. Rev. D
Reconnection-driven particle acceleration in relativistic shear flows
Creators: name: Sironi, Lorenzo
name: Rowan, Michael E.
name: Narayan, Ramesh
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Particle energization in shear flows is invoked to explain non-thermal emission from the boundaries of relativistic astrophysical jets. Yet, the physics of particle injection, i.e., the mechanism that allows thermal particles to participate in shear-driven acceleration, remains unknown. With particle-in-cell simulations, we study the development of Kelvin-Helmholtz (KH) instabilities seeded by the velocity shear between a relativistic magnetically-dominated electron-positron jet and a weakly magnetized electron-ion ambient plasma. We show that, in their nonlinear stages, KH vortices generate kinetic-scale reconnection layers, which efficiently energize the jet particles, thus providing a first-principles mechanism for particle injection into shear-driven acceleration. Our work lends support to spine-sheath models of jet emission - with a fast core/spine surrounded by a slower sheath - and can explain the origin of radio-emitting electrons at the boundaries of relativistic jets.
description: 8 pages, 6 figures, 1 appendix
Scalar fields, bent branes, and RG flow
Creators: name: Bazeia, D.
name: Brito, F. A.
name: Losano, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This work deals with braneworld scenarios driven by real scalar fields with standard dynamics. We show how the first-order formalism which exists in the case of four dimensional Minkowski space-time can be extended to de Sitter or anti-de Sitter geometry in the presence of several real scalar fields. We illustrate the results with some examples, and we take advantage of our findings to investigate renormalization group flow. We have found symmetric brane solutions with four-dimensional anti-de Sitter geometry whose holographically dual field theory exhibits a weakly coupled regime at high energy.
description: 22 pages, 7 figures
Δημιουργία διδακτικού υλικού για εργαστηριακά μαθήματα διαδικτυακής δημοσιογραφίας
Creators: name: Λάππα, Αναστασία Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Διαδικτυακή δημοσιογραφία
Τηλεκπαίδευση
Τεχνολογίες πληροφορίας και επικοινωνιών
Συστήματα διαχείρισης μάθησης
Blackboard
Internet journalism
Tele-education
Information Communication Technologies
Learning Management Systems

description: Αντικείμενο της εργασίας αποτέλεσε η οργάνωση, συστηματοποίηση και παραγωγή υποστηρικτικού υλικού για το εργαστηριακό μάθημα «∆ιαδικτυακή ∆ηµοσιογραφία» που διδάσκεται στο Τµήµα ∆ηµοσιογραφίας και Μέσων Μαζικής Επικοινωνίας του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης.Συγκεκριμένα, στο περιβάλλον του Blackboard δομήθηκαν 8 ∆ιδακτικές Ενότητες (Learning Units) με πρόσθετο διδακτικό υλικό των εξής 5 κατηγοριών: Video, On line οδηγοί (tutorials), Αλληλεπιδραστικό (Interactive- Animated) υλικό, Χρήσιµες συνδέσεις (links) και Βιβλιογραφία. Επίσης, δημιουργήθηκε µία ιστοσελίδα µε θεωρητικό υλικό για τα Συστήματα Διαχείρισης Περιεχομένου (Content Management Systems) και παρήχθησαν 8 εισαγωγικά video και ένα DVD-video. Παράλληλα μελετήθηκε το θεωρητικό πλαίσιο που απαντάται σε αυτές τις μορφές διδακτικών πρακτικών. Ειδικότερα, μελετήθηκαν θέματα όπως η χρήση των νέων τεχνολογιών στην εκπαίδευση, η τηλεκπαίδευση και ο συνδυασμός της µε τις παραδοσιακές μορφές διδασκαλίας. Παρουσιάστηκαν στοιχεία για την αξιοποίηση του Blackboard και γενικότερα των Συστημάτων Διαχείρισης Μάθησης (LMS) από τα εκπαιδευτικά ιδρύματα. Τέλος, επιχειρήθηκε μια συνολική αποτίμηση του παραχθέντος υλικού.
description: The object of the study was the organisation, systematisation and creation of supporting material for the laboratory course “Internet Journalism” that is taught in the Journalism and Mass Communication Department of the Aristotle University of Thessaloniki. In particular, 8 Learning Units were structured in the Blackboard environment along with additional learning material of the following 5 categories: video, on-line tutorials, interactive-animated material, useful links and bibliography. In addition, a website with material about content management systems was created, 8 introductory videos and one DVD-video. In parallel, the theoretical framework that is found in these forms of learning practices was studied. More specifically, topics such as the use of ICT in education, the tele-education and its combination with traditional forms of education were studied. Data regarding the utilisation of the Blackboard and the Learning Management Systems in general by the educational institutions was presented. Lastly, an overall evaluation of the produced material was attempted.
description: Σε συνεργασία με το τμήμα Λογιστικής και Χρηματοοικονομικής (Πανεπιστήμιο Μακεδονίας)
Stabilization of Subgrade Soil using Hydrated Lime Product
Creators: name: Beckham, Tony L.
name: Hopkins, Tommy C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1997
Subjects: subject: Transportation Engineering

description: The Carbide/Graphite Group Inc. requested the University of Kentucky, Kentucky Transportation Center to do a feasibility study to determine if a hydrated lime product produced at their Calvet City, Kentucky facility can be used as a soil subgrade stabilizing agent.
Minutes of meeting of the Trustees of the Winfield and Okanagan Centre Irrigation District, March 17, 1943
Creators: name: Trustees Of The Winfield And Okanagan Centre Irrigation District
Publisher: name: The University of British Columbia
Year: 2017

description: Minutes of meeting of the Trustees of the Winfield and Okanagan Centre Irrigation District, dated March 17, 1943, regarding the current irrigation system.
On Infinite Real Trace Rational Languages of Maximum Topological Complexity
Creators: name: Finkel, Olivier
name: Ressayre, Jean-Pierre
name: Simonnet, Pierre
Publisher: name: arXiv
Year: 2008
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider the set of infinite real traces, over a dependence alphabet (Gamma, D) with no isolated letter, equipped with the topology induced by the prefix metric. We then prove that all rational languages of infinite real traces are analytic sets and that there exist some rational languages of infinite real traces which are analytic but non Borel sets, and even Sigma^1_1-complete, hence of maximum possible topological complexity.
Συνδυασμός μεθόδων βιοπροστασίας και εδώδιμων μεμβρανών για τη βελτίωση της ασφάλειας των τροφίμων:
Creators: name: Γιαλαμάς, Χαράλαμπος Μενέλαου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Βιοπροστασία
Εδώδιμες μεμβράνες
Ασφάλεια τροφίμων
Biopreservation
Edible films
Food safety

description: Ανάπτυξη και εφαρμογή μιας καινοτόμου συσκευασίας με βάση τον συνδυασμό της τεχνολογίας των εδώδιμων μεμβρανών και της βιοπροστασίας για τον έλεγχο του παθογόνου Listvia monocytogenes στα τρόφιμα.
description: A novel packaging technology was developed based on the incorporation of a Lactobacillus saker protective culture into a Nacaseinate edible film, in order to control the growth of Listeria monocytogenes
Γνωστική αποκατάσταση ασθενών με ήπια ή μέτροια άνοια μέσω προγράμματος γνωστικής εκπαίδευσης με μουσικά ερεθίσματα: αποτελέσματα και μεταφορά σε εφαρμογή με δυνατότητα ανάπτυξης στο διαδίκτυο
Creators: name: Τζανής, Δημήτριος Αριστείδη
name: Μπατσίλα, Γεωργία Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Ανοια τύπου Alzheimer
PHP
Γνωστική αποκατάσταση
Μουσικά ερεθίσματα
Διαδικτυακή εφαρμογή
Ανάπτυξη Λογισμικού
Diamentia (Alzheimer Disease)
Cognitive rehabilitation
Music stimuli
Web development
Web application

description: Η παρούσα διπλωματική εργασία παρουσιάζει, τόσο σε θεωρητικό, όσο και σε πρακτικό επίπεδο, ένα πρότυπο πρόγραμμα γνωστικής παρέμβασης, το οποίο αξιοποιεί τη θεραπευτική επίδραση της μουσικής και απευθύνεται σε ασθενείς με ήπια ή μέτρια άνοια τύπου Alzheimer. Tο πρόγραμμα ονομάζεται «Γνωστική Εκπαίδευση με Μουσικά ερεθίσματα», απαρτίζεται από ασκήσεις προσοχής, μνήμης και γλώσσας με συνοδεία μουσικών ερεθισμάτων και έχει σα στόχο την εξάσκηση και νοητική ενδυνάμωση ηλικιωμένων ατόμων που παρουσιάζουν σημάδια νοητικού εκφυλισμού. Δεδομένης της επιτυχίας του, όπως αυτή διαγράφεται μέσα από την έρευνα, το πρόγραμμα μεταφέρθηκε σε λογισμικό με δυνατότητα ανάπτυξης στο διαδίκτυο. Συγκεκριμένα, αναπτύχθηκε η εφαρμογή «ΣΥΓΜΑ» πάνω στην πλατφόρμα WAMP (Windows, Apache, MySQL, PHP) και δόθηκε μία πρώτη εικόνα των δυνατοτήτων που μπορεί να έχει η μεταφορά του προγράμματος στο διαδίκτυο, όπου θα μπορεί να είναι εύκολα προσβάσιμο από οποιοδήποτε σημείο, χωρίς να περιορίζεται από τα χρονικά και τοπικά όρια ενός εξειδικευμένου κέντρου ημέρας.
description: The present thesis presents in both a theoretical and practical level, the potential of a cognitive training through musical stimuli in patients with Mild or Moderate Alzheimer Disease. It includes directed scientific application of music in order to achieve specific therapeutic aims, such as the improvement of cognitive and functional performance of patients. The program is called “Cognitive training programme through musical stimuli in Mild or Moderate Alzheimer Disease patients” and consists of cognitive tasks which activate specific cognitive abilities such as attention, memory, dual task, and speech. Music stimuli play the major role in cognitive training and accompany the tasks and exercises. Based on the its success, as early research shows, the program was transferred to a computer software program with the capacity of deployment to the internet. More specifically, the application “SYGMA” was developed on the WAMP (Windows, Apache, MySQL, PHP) platform, so as to offer a glimpse of the potential such a development may carry, giving the chance of accessing the program remotely, without suffering the time – space limitations of a specialized day centre.
A High-Affinity "Synthavidin" Receptor for Squaraine Dyes.
Creators: name: Davis, Anthony P
name: Balduzzi, Federica
name: Smith, Bradley D
name: Mooibroek, Tiddo J.
name: Samanta, Soumen
K.
name: Stewart, Patrick
name: Hoeg-Jensen, Thomas
name: Shi, Kejia
Publisher: name: University of Notre Dame
Year: 2024
Subjects: classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences
classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences

description: Strong-binding host–guest pairings in aqueous media have potential as “supramolecular glues” in biomedical techniques, complementing the widely-used (strept)avidin-biotin combination. We have previously found that squaraine dyes are bound very strongly by tetralactam macrocycles possessing anthracenyl units as cavity walls. Here we show that replacing the anthracenes with pentacyclic 5,7,12,14-tetrahydro-5,7,12,14-tetraoxapentacene (TOP) units generates receptors which bind squaraines with increased affinities (around Ka=1010 m−1) and improved selectivities. Binding can be followed through changes to squaraine fluorescence and absorbance. The TOP units are easy to prepare and potentially variable, while the TOP-based receptor shows improved photostability, both in itself and in complex with squaraines. The results suggest that this system could prove valuable in the further development of practical “synthavidin” chemistry
Exploring Hydrodynamic Instabilities along the Infalling High-Velocity Cloud Complex A
Creators: name: Barger, Kathleen A.
name: Nidever, David L.
name: Huey-You, Cannan
name: Lehner, Nicolas
name: Rueff, Katherine
name: Freeman, Paris
name: Birdwell, Amber
name: Wakker, Bart P.
name: Bland-Hawthorn, Joss
name: Benjamin, Robert
name: Ciampa, Drew A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Complex A is a high-velocity cloud that is traversing through the Galactic halo toward the Milky Way's disk. We combine both new and archival Green Bank Telescope observations to construct a spectroscopically resolved HI~21-cm map of this entire complex at a $17.1\lesssim\log{\left({N_{\rm HI},\,1σ}/{\rm cm}^{-2}\right)}\lesssim17.9$ sensitivity for a ${\rm FWHM}=20~{\rm km}\,{\rm s}^{-1}$ line and $Δθ=9.1\,{\rm arcmins}$ or $17\lesssimΔd_θ\lesssim30~\rm pc$ spatial resolution. We find that that Complex A is has a Galactic standard of rest frame velocity gradient of $Δ\rm v_{GSR}/ΔL=25~{\rm km}\,{\rm s}^{-1}/{\rm kpc}$ along its length, that it is decelerating at a rate of $\langle a\rangle_{\rm GSR}=55~{\rm km}/{\rm yr}^2$, and that it will reach the Galactic plane in $Δt\lesssim70~{\rm Myrs}$ if it can survive the journey. We have identify numerous signatures of gas disruption. The elongated and multi-core structure of Complex A indicates that either thermodynamic instabilities or shock-cascade processes have fragmented this stream. We find Rayleigh-Taylor fingers on the low-latitude edge of this HVC; many have been pushed backward by ram-pressure stripping. On the high-latitude side of the complex, Kelvin-Helmholtz instabilities have generated two large wings that extend tangentially off Complex A. The tips of these wings curve slightly forward in the direction of motion and have an elevated \hi\ column density, indicating that these wings are forming Rayleigh-Taylor globules at their tips and that this gas is becoming entangled with unseen vortices in the surrounding coronal gas. These observations provide new insights on the survivability of low-metallicity gas streams that are accreting onto $L_\star$ galaxies.
description: Figure 5 of the paper is a video in the published that can be found here: https://www.youtube.com/watch?v=YSbJetacspo
Co-constructing a responsive curriculum with early childhood providers for the inclusion of children who require extra support
Creators: name: Gerber, Jennifer
Publisher: name: University of British Columbia
Year: 2009

description: This study investigates the co-construction of a responsive curriculum with child care providers around the conclusion of children who require extra support. It is representative of a collaborative piece of work with the childcare providers. The main purpose of the study was to bring about an improvement in the practice of including children who require extra support. The study looked at attitudes the providers brought to bear on the context. Sensitivity to provider attitudes regarding the construction of the curriculum was integral to the study. An action research methodology was adapted to facilitate the investigation of the study. In this study I analyzed the data using the grounded theory method. My role as researcher in this study was that of a participant-observer. The conclusions indicated that studies need to be conducted regarding how society views the early childhood education profession; what constitutes knowledge in the field of early childhood education; and what the needs of the providers are in an inclusive context.
CoViD-19 Impact Lab Questionnaire Documentation
Creators: name: Gaudecker, Hans-Martin Von
name: Zimpelmann, Christian
name: Mendel, Moritz
name: Siflinger, Bettina
name: Janys, Lena
name: Maurer, Jürgen
name: Jongen, Egbert
name: Holler, Radost
name: Abikeyeva, Renata
name: Mutis, Felipe Augusto Azuero
name: Gehlen, Annica
name: Kleifgen, Eva Lucia
Publisher: name: Zenodo
Year: 2021
Subjects: CoViD-19
Coronavirus

description: Documentation of questionnaires created by the CoViD-19 Impact Lab in the LISS Panel. The questionnaires are used to survey participants of the LISS Panel on their experiences, expectations, and socio-economic situation during the 2020 coronavirus pandemic. The surveys are divided into multiple waves, all of which are documented here and online at: https://liss-covid-19-questionnaires-documentation.readthedocs.io/en/latest/. CoViD-19 Impact Lab was started in mid-March 2020 by a group of economists at Bonn and now consists of students and more senior researchers from several institutions like the University of Mannheim, the University of Lausanne, Tilburg University, and the Institute of Labor Economics (IZA).
MPEC 2024-T201 : 2024 TO6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TO6

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.
Broad Absorption Line Variability in Repeat Quasar Observations from the Sloan Digital Sky Survey
Creators: name: Lundgren, Britt F.
name: Wilhite, Brian C.
name: Brunner, Robert J.
name: Hall, Patrick B.
name: Schneider, Donald P.
name: York, Donald G.
name: Berk, Daniel E. Vanden
name: Brinkmann, Jonathan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a time-variability analysis of 29 broad absorption line quasars (BALQSOs) observed in two epochs by the Sloan Digital Sky Survey (SDSS). These spectra are selected from a larger sample of BALQSOs with multiple observations by virtue of exhibiting a broad CIV $λ$1549 absorption trough separated from the rest frame of the associated emission peak by more than 3600 km s$^{-1}$. Detached troughs facilitate higher precision variability measurements, since the measurement of the absorption in these objects is not complicated by variation in the emission line flux. We have undertaken a statistical analysis of these detached-trough BALQSO spectra to explore the relationships between BAL features that are seen to vary and the dynamics of emission from the quasar central engine. We have measured variability within our sample, which includes three strongly variable BALs. We have also verified that the statistical behavior of the overall sample agrees with current model predictions and previous studies of BAL variability. Specifically, we observe that the strongest BAL variability occurs among the smallest equivalent width features and at velocities exceeding 12,000 km s$^{-1}$, as predicted by recent disk-wind modeling.
description: 11 pages, 7 figures. Accepted for publication in ApJ
Μελέτη της χρήσης του διαδικτύου στην πολιτική-αξιολόγηση προσωπικών ιστοσελίδων βουλευτών:
Creators: name: Λουπίδου, Μαρία Σωτηρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Νέα μέσα
Ιστοσελίδες-πολιτικές
Μέθοδος αξιολόγησης
Διαδραστικότητα
Κυβερνοχώρος
Μπλογκς
New media
Sites political
Method of assessment
Interactivity
Cyberspace
Blogs

description: Η εργασία έχει ως στόχο τη μελέτη της χρήσης των νέων μέσων και ειδικότερα του διαδικτύου στην πολιτική. Το ενδιαφέρον επικεντρώνεται στη μελέτη των προσωπικών ιστοσελίδων πολιτικών της Ελλάδας έτσι ώστε να περιγραφεί και να αξιολογηθεί η χρήση του διαδραστικού αυτού εργαλείου στην υπηρεσία της πολιτικής και των πολιτικών
description: This project discusses the role of the usage of new media, especially internet politics, in Greece. There is a desk research of personal political sites of politicians as we want to a research of how the new media could change political communication
2006 Ligia Inuma Inuma recordings
Creators: name: Inuma Inuma, Ligia
name: Michael, Lev
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: iqu

description: WAV audio recordings of 4 texts, in Iquito followed by Loretano Spanish [unless noted]:
1. KAS: Kásiiri saakɨ́ɨni 2: Cuento de la luna 2: Story of the moon 2
(Iquito: 7m24sec; total: 13m51sec)
2. LIY: Iyákuni maníini: El joven boa: The anaconda youth
(Iquito: 9m15sec; total: 16m13sec)
3. LKN: Kuni maníini 2: Historia del hombre jergón 2: The snake youth 2
(Iquito: 9m30sec; total: 15m44sec)
4. QCA: Kitáaka anitaáki-jata: La señorita y la huangana: The young woman and the white-lipped peccary [Iquito only]
(Iquito: 4m30sec; total: 4m59sec)
Long Tidal Tails in Merging Galaxies and Their Implications
Creators: name: Ren, Jian
name: Zheng, Xian Zhong
name: Valls-Gabaud, David
name: Duc, Pierre-Alain
name: Bell, Eric F.
name: Pan, Zhizheng
name: Qin, Jianbo
name: Shi, Dongdong
name: Qiao, Man
name: He, Yongqiang
name: Wen, Run
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the properties of long tidal tails using the largest to date sample of 461 merging galaxies with $\log(M_\ast/\rm M_\odot)\geq9.5$ within $0.2 \leq z \leq 1$ from the COSMOS survey in combination with {\it Hubble Space Telescope} imaging data. Long tidal tails can be briefly divided into three shape types: straight (41\,per\,cent), curved (47\,per\,cent) and plume (12\,per\,cent). Their host galaxies are mostly at late stages of merging, although 31\,per\,cent are galaxy pairs with projected separations $d>20$\,kpc. The high formation rate of straight tidal tails needs to be understood as the projection of curved tidal tails accounts for only a small fraction of the straight tails. We identify 165 tidal dwarf galaxies (TDGs), yielding a TDG production rate of 0.36 per merger. Combined with a galaxy merger fraction and a TDG survival rate from the literature, we estimate that $\sim$\,5\,per\,cent of local dwarf galaxies are of tidal origin, suggesting the tidal formation is not an important formation channel for the dwarf galaxies. More than half of TDGs are located at the tip of their host tails. These TDGs have stellar masses in the range of $7.5\leq\log (M_\ast/\rm M_\odot)\leq9.5$ and appear compact with half-light radii following the $M_\ast$ - $R_{\rm e}$ relation of low-mass elliptical galaxies. However, their surface brightness profiles are generally flatter than those of local disc galaxies. Only 10 out of 165 TDGs have effective radii larger than 1.5 kpc and would qualify as unusually bright ultra-diffuse galaxies.
description: 11 pages, 13 figures, accepted for publication in MNRAS
Phase Behavior in Thin Films of Confined Colloid-Polymer Mixtures
Creators: name: Ren, Chun-lai
name: Ma, Yu-qiang
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Using self-consistent field and density-functional theories, we first investigate colloidal self-assembling of colloid/polymer films confined between two soft surfaces grafted by polymers. With the increase of colloidal concentrations, the film undergoes a series of transitions from disordered liquid $\to$ sparse square $\to$ hexagonal (or mixed square-hexagonal) $\to$ dense square $\to$ cylindric structures in plane, which results from the competition between the entropic elasticity of polymer brushes and the steric packing effect of colloidal particles. A phase diagram displays the stable regions of different in-layer ordering structures as the colloidal concentration is varied and layering transitions as the polymer-grafted density is decreased. Our results show a new control mechanism to stabilize the ordering of structures within the films.
Doppler Images and Chromospheric Variability of TWA 6
Creators: name: Skelly, M. B.
name: Unruh, Y. C.
name: Cameron, A. Collier
name: Barnes, J. R.
name: Donati, J. -F.
name: Lawson, W. A.
name: Carter, B. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Doppler imaging and Balmer line analysis of the weak-line T Tauri star TWA 6. Using this data we have made one of the first attempts to measure differential rotation in a T Tauri star, and the first detection of a slingshot prominence in such a star. We also show the most direct evidence to date of the existence of solar-type plages in a star other than the Sun. Observations were made over six nights: 11-13th February 2006 and 18-20th February 2006, when spectra were taken with the UCL Echelle Spectrograph on the 3.9-m Anglo-Australian Telescope. Using least-squares deconvolution to improve the effective signal--to--noise ratio we produced two Doppler maps. These show similar features to maps of other rapidly rotating T Tauri stars, i.e. a polar spot with more spots extending out of it down to equator. Comparison of the two maps was carried out to measure the differential rotation. Cross-correlation and parameter fitting indicates that TWA 6 does not have detectable differential rotation. The Balmer emission of the star was studied. The mean H-alpha profile has a narrow component consistent with rotational broadening and a broad component extending out to 250km/s. The variability in H-alpha suggests that the chromosphere has active regions that are cospatial with the spots in the photosphere, similar to the 'plages' observed on the Sun. In addition the star has at least one slingshot prominence 3 stellar radii above the surface - the first such detection in a T Tauri star.
description: 13 pages, 16 figures
Visual Inspection of Keystone Block Wall and Embankment Slide at Mist Lake Plaza in Lexington, Kentucky
Creators: name: Fleckenstein, L. John
name: Allen, David L.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1997
Subjects: subject: Transportation Engineering

description: The Kentucky Transportation Center was requested by Bhate Engineering Corporation and A.B. Shopping Center Properties, Inc. to evaluate and monitor apparent movement in the Keystone Block retaining structure and the earth embankment located next to the Walmart Department Store at Mist Lake Plaza in Lexington, Kentucky. This report summarizes work that has been conducted to date. This work includes inspection of surface drainage, inspection of subsurface storm water drainage, inspection of the embankment, and inspection and photologging of current wall distress. At present, control monitoring points are being established (to be completed by the first of June).
Minutes of meeting of the Trustees of the Winfield and Okanagan Centre Irrigation District, March 21, 1943
Creators: name: Trustees Of The Winfield And Okanagan Centre Irrigation District
Publisher: name: The University of British Columbia
Year: 2017

description: Minutes of meeting of the Trustees of the Winfield and Okanagan Centre Irrigation District, dated March 21, 1943, regarding the irrigation system.
МОДА КАК ПРОТЕСТ
Creators: name: Хакимова, Фотима
Publisher: name: Zenodo
Year: 2024

description: В статье “Мода как протест: текстильный манифест в мире символов и революций” исследуется роль моды как средства выражения социального, культурного и политического протеста. Описываются исторические примеры, начиная с древности и до современности, показывая, как одежда становилась символом сопротивления и борьбы за свободу. Рассматриваются ключевые моменты XX века, включая движения феминизма, хиппи и чернокожих активистов, а также современные тенденции, такие как инклюзивная мода и экологические инициативы. Статья подчёркивает, что мода остаётся мощным инструментом для выражения несогласия и стремления к переменам.
Bosonic condensation of exciton-polaritons in an atomically thin crystal
Creators: name: Anton-Solanas, Carlos
name: Waldherr, Maximilian
name: Klaas, Martin
name: Suchomel, Holger
name: Cai, Hui
name: Sedov, Evgeny
name: Kavokin, Alexey V.
name: Tongay, Sefaattin
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Höfling, Sven
name: Schneider, Christian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The emergence of two-dimensional crystals has revolutionized modern solid-state physics. From a fundamental point of view, the enhancement of charge carrier correlations has sparked enormous research activities in the transport- and quantum optics communities. One of the most intriguing effects, in this regard, is the bosonic condensation and spontaneous coherence of many-particle complexes. Here, we find compelling evidence of bosonic condensation of exciton-polaritons emerging from an atomically thin crystal of MoSe2 embedded in a dielectric microcavity under optical pumping. The formation of the condensate manifests itself in a sudden increase of luminescence intensity in a threshold-like manner, and a significant spin-polarizability in an externally applied magnetic field. Spatial coherence is mapped out via highly resolved real-space interferometry, revealing a spatially extended condensate. Our device represents a decisive step towards the implementation of coherent light-sources based on atomically thin crystals, as well as non-linear, valleytronic coherent devices.
description: Main text: 11 pages, 5 figures, Supplementary Materials: 4 pages, 5 figures
Experimental microstylolites in quartz and modelling of natural stylolitic structures
Creators: name: Gratier, Jean-Pierre
name: Muquet, Laurent
name: Hassani, Riad
name: Renard, Francois
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Experimental microstylolites have been observed at stressed contacts between quartz grains loaded for several weeks in the presence of an aqueous silica solution, at 350 8C and 50 MPa of differential stress. Stereoscopic analysis of pairs of SEM images yielded a digital elevation model of the surface of the microstylolites. Fourier analyses of these microstylolites reveal a self-affine roughness (with a roughness exponent H of 1.2). Coupled with observations of close interactions between dissolution pits and stylolitic peaks, these data illustrate a possible mechanism for stylolite formation. The complex geometry of stylolite surfaces is imposed by the interplay between the development of dissolution peaks in preferential locations (fast dissolution pits) and the mechanical properties of the solid-fluid-solid interfaces. Simple mechanical modeling expresses the crucial competition that could rule the development of microstylolites: (i) a stress-related process, modeled in terms of the stiffness of springs that activate the heterogeneous dissolution rates of the solid interface, promotes the deflection. In parallel, (ii) the strength of the solid interface, modeled in terms of the stiffness of a membrane, is equivalent to a surface tension that limits the deflection and opposes its development. The modeling produces stylolitic surfaces with characteristic geometries varying from conical to columnar when both the effect of dissolution-rate heterogeneity and the strength properties of the rock are taken into account. A self-affine roughness exponent (Hz1.2) measured on modeled surfaces is comparable with natural stylolites at small length scale and experimental microstylolites.
Evaluation of Pavement Edge Drains and Headwalls on I-264 (Watterson Expressway) Jefferson County
Creators: name: Fleckenstein, L. John
name: Rister, Brad W.
name: Allen, David L.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1997
Subjects: subject: Transportation Engineering

description: This report documents the findings from the investigation of pavement edge drains and headwall conditions on six Watterson Expressway Projects in Jefferson County. These projects include the Newburg Road Interchange, Bardstown Road Interchange, Taylorsville Road Interchange, Breckinridge Road Interchange, l-64 1nterchange, and Shelbyville Road Interchange. The study was initiated due to an on-site inspection by Federal Highway Administration, Kentucky Transportation Center, and District 5 personnel who indicated several of the outlet pipes were clogged or collapsed. It was suggested by Federal Highway Administration personnel that a mini pipeline inspection camera be used to verify the conditions of the outlet pipes and mainlines. Findings from this study indicated that approximately 49 percent of the combined 467 pavement edge and cross drains from all six projects were less than 50 percent open.
Boson-controlled quantum transport
Creators: name: Alvermann, A.
name: Edwards, D. M.
name: Fehske, H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the interplay of collective dynamics and damping in the presence of correlations and bosonic fluctuations within the framework of a newly proposed model, which captures the principal transport mechanisms that apply to a variety of physical systems. We establish close connections to the transport of lattice and spin polarons, or the dynamics of a particle coupled to a bath. We analyse the model by exactly calculating the optical conductivity, Drude weight, spectral functions, groundstate dispersion and particle-boson correlation functions for a 1D infinite system.
description: 4 pages, 6 figures, final version to appear in Phys. Rev. Lett
Η αφόρμηση και η θεμελίωση των εννοιών του ωραίου και του υψηλού στη φιλοσοφία του Ιμμανουέλ Καντ:
Creators: name: Μηχαντά, Παρασκευή Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Καντ
Ωραίο
Υψηλό
Κριτική ικανότητα
Τέχνη
Αισθητική
Kant Immanuel
Beauty
Sublime
Judgement
Art
Aesthetics

description: Εξετάζοντας την πορεία και τον τρόπο διαμόρφωσης της αισθητικής σκέψης του Ιμανουέλ Καντ αναλύεται το υπερβατολογικό φιλοσοφικό του σύστημα και η σημασία της κριτικής ικανότητας και των αισθητικών κρίσεων.
description: Initially, the aesthetic theory of Immanuel Kant is elucidated through the analysis of his philosophical system and through the substance of the aesthetic judgement